Version update.

Reviewed-on: https://codeberg.org/a-j-wood/pv/pulls/85

.github/FUNDING.yml

@@ -1 +0,0 @@
-github: a-j-wood

.gitignore

@@ -1,3 +1,18 @@
-*~
+build-aux
+missing
+compile
+depcomp
+install-sh
+config.sub
+config.guess
+Makefile.in
+aclocal.m4
+autoscan.log
 configure
+configure.scan
+autom4te.cache
+ABOUT-NLS
+m4
+*~
+*.tar.gz
 patch-backlog

Makefile.am

@@ -0,0 +1,120 @@
+## Process this file with automake to produce Makefile.in
+
+AUTOMAKE_OPTIONS = subdir-objects
+
+SUBDIRS = po
+
+bin_PROGRAMS = pv
+dist_doc_DATA = README.md docs/INSTALL docs/COPYING docs/NEWS.md docs/ACKNOWLEDGEMENTS.md docs/DEVELOPERS.md docs/TODO.md docs/benchmark.sh
+dist_man1_MANS = docs/pv.1
+
+EXTRA_DIST = docs/pv.1.md
+
+pv_SOURCES = \
+src/main/debug.c \
+src/main/help.c \
+src/main/main.c \
+src/main/options.c \
+src/main/remote.c \
+src/main/version.c \
+src/pv/cursor.c \
+src/pv/display.c \
+src/pv/elapsedtime.c \
+src/pv/file.c \
+src/pv/loop.c \
+src/pv/number.c \
+src/pv/signal.c \
+src/pv/state.c \
+src/pv/string.c \
+src/pv/transfer.c \
+src/pv/watchpid.c \
+src/include/config-aux.h \
+src/include/options.h \
+src/include/pv-internal.h \
+src/include/pv.h
+
+## Allow tests to write diagnostic info to fd 9 to reach the original
+## stderr even when the test driver is sending test output to a file.
+AM_TESTS_FD_REDIRECT = 9>&2
+
+AM_TESTS_ENVIRONMENT = \
+  . $(srcdir)/tests/test-env.sh \
+  ;
+TESTS = \
+tests/Bug_-_Display_length_at_magnitude_boundary_-_Bytes.test \
+tests/Bug_-_Display_length_at_magnitude_boundary_-_Rate.test \
+tests/Bug_-_Install_all_files.test \
+tests/Display_-_--average-rate.test \
+tests/Display_-_--bits.test \
+tests/Display_-_--buffer-percent.test \
+tests/Display_-_--bytes.test \
+tests/Display_-_--eta_-_plausible_values.test \
+tests/Display_-_--fineta_-_plausible_values.test \
+tests/Display_-_--last-written.test \
+tests/Display_-_--numeric_--bytes_--line-mode.test \
+tests/Display_-_--numeric_--bytes.test \
+tests/Display_-_--numeric.test \
+tests/Display_-_--numeric_--timer.test \
+tests/Display_-_--progress_-_basic_movement.test \
+tests/Display_-_--progress_-_increasing.test \
+tests/Display_-_--quiet.test \
+tests/Display_-_--rate_-_displayed_value_changes.test \
+tests/Display_-_--timer_-_displayed_value_changes.test \
+tests/General_-_--pidfile.test \
+tests/General_-_--size_argument_handling.test \
+tests/Integrity_-_Basic.test \
+tests/Integrity_-_Binary_data.test \
+tests/Integrity_-_From_bursty_source.test \
+tests/Integrity_-_Large_file_support.test \
+tests/Integrity_-_On_output_pipe_close.test \
+tests/Integrity_-_When_adjusted_remotely.test \
+tests/Memory_safety_-_Basic.test \
+tests/Memory_safety_-_Remote_control_receiver.test \
+tests/Memory_safety_-_Remote_control_sender.test \
+tests/Modifiers_-_--direct-io.test \
+tests/Modifiers_-_--force.test \
+tests/Modifiers_-_--interval.test \
+tests/Modifiers_-_--line-mode.test \
+tests/Modifiers_-_--size_from_file_size.test \
+tests/Modifiers_-_--size.test \
+tests/Modifiers_-_--sync.test \
+tests/Terminal_-_Detect_width.test \
+tests/Transfer_-_--rate-limit.test \
+tests/Transfer_-_--remote.test \
+tests/Transfer_-_--stop-at-size.test
+
+EXTRA_DIST += $(TESTS) tests/run-valgrind.sh tests/test-env.sh
+
+docs/pv.1.md: $(srcdir)/docs/pv.1
+	test -d docs || mkdir docs
+	pandoc --from man --to markdown < $< | sed '/\*\*\*\*/{s/\*//g;s/^/**/;s/$$/**/}' | sed '/^```/,/^```/d' > $@
+
+SUFFIXES = .c .o .e
+
+.c.e:
+	-splint -badflag +posixlib $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) -DSPLINT=1 $< > $@ 2>&1
+	-flawfinder $< >> $@ 2>&1
+
+indent:
+	cd $(srcdir) && indent -npro -kr -i8 -cd42 -c45 -l120 src/*/*.c
+
+indentclean:
+	rm -f $(srcdir)/*/*.c~
+
+analyse: $(pv_SOURCES:.c=.e) FORCE
+	grep -E -e '^Finished checking --' -e 'Hits = ' $+ 2>/dev/null || true
+
+FORCE:
+
+clean-local:
+	rm -f src/*/*.e
+
+# Convenience alias for "make check": "make test"
+test: check
+
+# "release" target - requires MAINTAINER variable to select GPG key.
+release: distcheck
+	gpg --list-secret-keys 2>&1 | grep -F 'uid' | grep -Fq "$(MAINTAINER)"
+	gpg -u "$(MAINTAINER)" -ab $(distdir).tar.gz
+	cp -f $(distdir).tar.gz.asc $(distdir).tar.gz.txt
+	chmod 644 $(distdir).tar.gz $(distdir).tar.gz.asc $(distdir).tar.gz.txt

README.md

@@ -1,5 +1,4 @@
-Introduction
-------------
+# Introduction
 
 This is the README for **pv** ("Pipe Viewer"), a terminal-based tool for
 monitoring the progress of data through a pipeline.  It can be inserted into
@@ -8,51 +7,59 @@ quickly data is passing through, how long it has taken, how near to
 completion it is, and an estimate of how long it will be until completion.
 
 
-Documentation
--------------
+# Documentation
 
-A manual page is included in this distribution.  See "`man ./doc/quickref.1`",
-or "`man pv`" after installation.
+A manual page is included in this distribution ("`man pv`").  Before
+installation, it is in "[docs/pv.1](./docs/pv.1.md)".
 
-Changes are listed in "[doc/NEWS.md](./doc/NEWS.md)".  The to-do list is "[doc/TODO.md](./doc/TODO.md)".
+Changes are listed in "[docs/NEWS.md](./docs/NEWS.md)".  The to-do list is "[docs/TODO.md](./docs/TODO.md)".
+
+Developers and translators, please see "[docs/DEVELOPERS.md](./docs/DEVELOPERS.md)".
 
 
-Compilation
------------
-
-If this is not a packaged release, first run "`./generate.sh`".
+# Compilation
 
 To compile the package, type "`sh ./configure`", which should generate a
-Makefile for your system.  You may then type "`make`" to build everything.
-Note that GNU _make_ is required; this may be installed as _gmake_ on some
-systems, so if typing "`make`" gives an error, try "`gmake`" instead.
+Makefile for your system.  You may then type "`make`" to build everything,
+and "`make install`" to install it.
 
-See the file "[doc/INSTALL](./doc/INSTALL)" for more about the _configure_ script.
+See the file "[docs/INSTALL](./docs/INSTALL)" for more about the _configure_ script.
 
-Developers note that you can run "`./configure --enable-debugging`" to cause
-debugging support to be built in, and the `--enable-profiling` option builds
-in profiling support (see "`man gprof`").  Also note that running
-"`make index`" will generate an HTML code index (using _ctags_ and
-_cproto_); this index lists all files used, all functions defined, and all
-TODOs marked in the code.
+If this is not a packaged release, you will need the GNU build system tools
+(`autoconf`, `aclocal`, `autopoint`, `automake`) and the `gettext`
+development tools.  You can then run "`autoreconf -is`" to generate the
+"`configure`" script.
 
 
-Author and acknowledgements
----------------------------
+# Copyright, bug reporting, and acknowledgements
 
-This package is copyright 2023 Andrew Wood, and is being distributed under
-the terms of the Artistic License 2.0.  For more details of this license,
-see the file "[doc/COPYING](./doc/COPYING)".
+Copyright (C) 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2024 Andrew Wood.
 
-Report bugs in **pv** using the contact form linked from the home page, or
-though the [project issue tracker](https://github.com/a-j-wood/pv/issues).
+License GPLv3+: GNU GPL version 3 or later <https://www.gnu.org/licenses/gpl-3.0.html>.
+
+This program is free software: you can redistribute it and/or modify it
+under the terms of the GNU General Public License as published by the Free
+Software Foundation, either version 3 of the License, or (at your option)
+any later version.
+
+This program is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+more details.
+
+You should have received a copy of the GNU General Public License, version
+3, in "[docs/COPYING](./docs/COPYING)".  If not, see
+<https://www.gnu.org/licenses/gpl-3.0.html>.
+
+Please report any bugs to **pv@ivarch.com**, or use the issue tracker linked
+from the **pv** home page.
 
 The **pv** home page is at:
 
-&nbsp;&nbsp;[http://www.ivarch.com/programs/pv.shtml](http://www.ivarch.com/programs/pv.shtml)
+[https://www.ivarch.com/programs/pv.shtml](https://www.ivarch.com/programs/pv.shtml)
 
 The latest version can always be found here.
 
-**Please see "[doc/ACKNOWLEDGEMENTS.md](./doc/ACKNOWLEDGEMENTS.md)" for a list of contributors.**
+**Please see "[docs/ACKNOWLEDGEMENTS.md](./docs/ACKNOWLEDGEMENTS.md)" for a list of contributors.**
 
 ---

autoconf/Makefile.in

@@ -1,14 +0,0 @@
-#
-# Files from which this is generated (inside directory `autoconf/make'):
-#
-#   package.mk          # package name and distribution details
-#   vars.mk             # compilation, shell and linking variables
-#   filelist.mk~        # lists of files (generated by "makemake.sh")
-#   unreal.mk           # phony targets
-#   modules.mk~         # module linking rules (generated by "makemake.sh")
-#   rules.mk            # compilation rules
-#   link.mk             # real top-level targets
-#   depend.mk~          # dependencies (generated by "makemake.sh")
-#
-#
-

autoconf/configure.in

@@ -1,185 +0,0 @@
-dnl Process this file with autoconf to produce a configure script.
-dnl
-dnl Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023 Andrew Wood
-dnl
-dnl Distributed under the Artistic License v2.0; see `doc/COPYING'.
-
-dnl Supported languages
-ALL_LINGUAS="de fr pl pt"
-
-AC_INIT
-AC_CONFIG_SRCDIR([src/main/version.c])
-AC_CONFIG_AUX_DIR(autoconf/scripts)
-AC_CONFIG_HEADERS([src/include/config.h:autoconf/header.in])
-AH_BOTTOM([#include "config-aux.h"])
-
-dnl Package identity
-PACKAGE=`cat $srcdir/doc/PACKAGE`
-VERSION=`cat $srcdir/doc/VERSION`
-UCPACKAGE=`tr a-z A-Z < $srcdir/doc/PACKAGE`
-AC_SUBST(PACKAGE)
-AC_SUBST(VERSION)
-AC_SUBST(UCPACKAGE)
-AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Package name])
-AC_DEFINE_UNQUOTED([PROGRAM_NAME], ["$PACKAGE"], [Name of this program])
-AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version of this program])
-AC_DEFINE([COPYRIGHT_YEAR], [_("2023")], [Copyright year])
-AC_DEFINE([COPYRIGHT_HOLDER], [_("Andrew Wood <andrew.wood@ivarch.com>")], [Copyright holder])
-AC_DEFINE([PROJECT_HOMEPAGE], ["http://www.ivarch.com/programs/" PROGRAM_NAME ".shtml"], [Project homepage])
-AC_DEFINE([BUG_REPORTS_TO], [_("<pv@ivarch.com>")], [Bug reporting email address])
-
-AC_LANG(C)
-CFLAGS=${CFLAGS:-"-O"}
-AC_PROG_CC
-AC_PROG_INSTALL
-AC_USE_SYSTEM_EXTENSIONS
-AC_C_CONST
-AC_HEADER_STDBOOL
-AC_SYS_LARGEFILE
-AC_HEADER_TIOCGWINSZ
-AC_CHECK_FUNCS(getopt_long getopt)
-AC_CHECK_HEADERS(getopt.h)
-AC_CHECK_FUNCS(memcpy basename vsnprintf strlcat)
-AC_CHECK_FUNCS(fdatasync)
-AC_CHECK_FUNCS(fpathconf sysconf posix_memalign)
-AC_CHECK_HEADERS(limits.h)
-
-AC_ARG_ENABLE(debugging,
-  [  --enable-debugging      compile with debugging support],
-  if test "$enable_debugging" = "yes"; then
-  	CFLAGS="$CFLAGS -g -Wall"
-	AC_DEFINE([ENABLE_DEBUGGING], [1], [Debugging support enabled])
-  fi
-)
-
-AC_ARG_ENABLE(profiling,
-  [  --enable-profiling      compile with profiling support],
-  if test "$enable_profiling" = "yes"; then
-  	CFLAGS="-pg $CFLAGS"
-  fi
-)
-
-STATIC_NLS="no"
-AC_ARG_ENABLE(static-nls, [  --enable-static-nls     hardcode NLS with no support files],
-  if test "$enable_static_nls" = "yes"; then
-    STATIC_NLS="yes"
-  fi,
-  STATIC_NLS="no"
-)
-
-NLS_SUPPORT="no"
-AC_ARG_ENABLE(nls, [  --disable-nls           do not use Native Language Support],
-  if test "$enable_nls" = "yes"; then
-    NLS_SUPPORT="yes"
-  fi,
-  NLS_SUPPORT="yes"
-)
-
-SPLICE_SUPPORT="no"
-AC_ARG_ENABLE(splice, [  --disable-splice        do not use splice system call],
-  if test "$enable_splice" = "yes"; then
-    SPLICE_SUPPORT="yes"
-  fi,
-  SPLICE_SUPPORT="yes"
-)
-
-IPC_SUPPORT="no"
-AC_ARG_ENABLE(ipc, [  --disable-ipc           turn off IPC messaging],
-  if test "$enable_ipc" = "yes"; then
-    IPC_SUPPORT="yes"
-  fi,
-  IPC_SUPPORT="yes"
-)
-
-dnl AIX needs -lc128
-AC_EGREP_CPP([^yes$], [#ifdef _AIX
-yes
-#endif
-], [LIBS="$LIBS -lc128"])
-
-dnl Native Language Suppot
-if test "$NLS_SUPPORT" = "yes"; then
-  AC_DEFINE([ENABLE_NLS], [1], [Enable native language support])
-  AC_PATH_PROG(MSGFMT, msgfmt, NOMSGFMT)
-  AC_PATH_PROG(GMSGFMT, gmsgfmt, $MSGFMT)
-  AC_PATH_PROG(XGETTEXT, xgettext, xgettext)
-  if test "x$MSGFMT" = "xNOMSGFMT"; then
-    MSGFMT=""
-    STATIC_NLS="yes"
-  fi
-  if test "$STATIC_NLS" = "yes"; then
-    CATALOGS=""
-    NLSOBJ="src/nls/table.o"
-  else
-    AC_CHECK_LIB(intl, main)
-    AC_CHECK_LIB(i, main)
-  fi
-  CATOBJEXT=.mo
-  INSTOBJEXT=.mo
-  for lang in $ALL_LINGUAS; do
-    GMOFILES="$GMOFILES $lang.gmo"
-    POFILES="$POFILES \$(srcdir)/src/nls/$lang.po"
-    CATALOGS="$CATALOGS src/nls/$lang$CATOBJEXT";
-  done
-  if test "$STATIC_NLS" = "yes"; then
-    CATALOGS=""
-  else
-    AC_CHECK_FUNC(gettext,
-     [AC_DEFINE([HAVE_GETTEXT], [1], [The gettext function is available])
-      NLSOBJ=""
-     ], [CATALOGS=""; NLSOBJ="src/nls/table.o"
-     ]
-    )
-  fi
-fi
-AC_CHECK_HEADERS(libintl.h)
-AC_CHECK_HEADERS(locale.h)
-AC_SUBST(MSGFMT)
-AC_SUBST(GMSGFMT)
-AC_SUBST(XGETTEXT)
-AC_SUBST(CATOBJEXT)
-AC_SUBST(INSTOBJEXT)
-AC_SUBST(GMOFILES)
-AC_SUBST(POFILES)
-AC_SUBST(CATALOGS)
-AC_SUBST(NLSOBJ)
-
-if test "$IPC_SUPPORT" = "yes"; then
-  AC_CHECK_HEADERS(sys/ipc.h sys/param.h libgen.h)
-fi
-
-if test "$SPLICE_SUPPORT" = "yes"; then
-  AC_CHECK_FUNCS(splice)
-fi
-
-dnl This must go after all the compiler based tests above.
-AC_LANG_WERROR
-
-dnl Fudging for separate build directories.
-dnl
-subdirs=""
-for i in `find $srcdir/src -type d -print | sed s,$srcdir/,,`; do
-  subdirs="$subdirs $i"
-done
-
-dnl Stitch together the Makefile fragments.
-dnl
-mk_segments="autoconf/Makefile.in"
-for i in vars.mk package.mk filelist.mk~ unreal.mk modules.mk~ \
-         rules.mk link.mk depend.mk~; do
-  mk_segments="$mk_segments:autoconf/make/$i"
-done
-
-dnl Output files (and create build directory structure too).
-dnl
-AC_CONFIG_FILES([Makefile:$mk_segments doc/lsm:doc/lsm.in
-          doc/quickref.1:doc/quickref.1.in
-          src/.dummy:doc/NEWS.md])
-AC_CONFIG_COMMANDS([default],[rm -f src/.dummy
-  for i in $subdirs; do
-    test -d $i || mkdir $i
-  done
-],[subdirs="$subdirs"])
-AC_OUTPUT
-
-dnl EOF

autoconf/make/link.mk

@@ -1,11 +0,0 @@
-#
-# Targets.
-#
-
-$(package): src/main.o src/library.o src/pv.o @NLSOBJ@
-	$(CC) $(LINKFLAGS) $(CFLAGS) -o $@ src/main.o src/library.o src/pv.o @NLSOBJ@ $(LIBS)
-
-$(package)-static: src/main.o src/library.o src/pv.o @NLSOBJ@
-	$(CC) $(LINKFLAGS) $(CFLAGS) -static -o $@ src/main.o src/library.o src/pv.o @NLSOBJ@ $(LIBS)
-
-# EOF

autoconf/make/package.mk

@@ -1,17 +0,0 @@
-#
-# Package name, version, and distribution files.
-#
-
-package = @PACKAGE@
-version = @VERSION@
-PACKAGE = @PACKAGE@
-
-distfiles =		\
-$(srcdir)/README.md	\
-$(srcdir)/autoconf	\
-$(srcdir)/configure	\
-$(srcdir)/doc		\
-$(srcdir)/src		\
-$(srcdir)/tests
-
-# EOF

autoconf/make/rules.mk

@@ -1,43 +0,0 @@
-#
-# Compilation rules.
-#
-
-.SUFFIXES: .c .d .o
-
-.c.o:
-	$(CC) $(CFLAGS) $(CPPFLAGS) -c -o $@ $<
-
-.c.d:
-	sh $(srcdir)/autoconf/scripts/depend.sh \
-	   $(CC) $< $(<:%.c=%) $(srcdir) $(CFLAGS) $(CPPFLAGS) > $@
-
-#
-# Native language support
-#
-
-%.mo: %.po
-	$(MSGFMT) -o $@ $<
-	@touch $@
-	@chmod 644 $@
-
-%.gmo: %.po
-	rm -f $@
-	$(GMSGFMT) -o $@ $<
-	@touch $@
-	@chmod 644 $@
-
-$(srcdir)/src/nls/$(PACKAGE).pot: $(allsrc)
-	$(XGETTEXT) --default-domain=$(PACKAGE) --directory=$(srcdir) \
-	            --add-comments --keyword=_ --keyword=N_ \
-	            $(allsrc)
-	if cmp -s $(PACKAGE).po $@; then \
-	  rm -f $(PACKAGE).po; \
-	else \
-	  rm -f $@; \
-	  mv $(PACKAGE).po $@; \
-	  chmod 644 $@; \
-	fi
-
-src/nls/table.c: $(POFILES)
-	sh $(srcdir)/autoconf/scripts/po2table.sh $(POFILES) > src/nls/table.c
-

autoconf/make/unreal.mk

@@ -1,183 +0,0 @@
-#
-# Rules for all phony targets.
-#
-
-.PHONY: all help make dep depend test check \
-  clean depclean indentclean distclean cvsclean svnclean \
-  index manhtml indent update-po \
-  doc dist release \
-  install uninstall
-
-all: $(alltarg) $(CATALOGS)
-
-help:
-	@echo 'This Makefile has the following utility targets:'
-	@echo
-	@echo '  all             build all binary targets'
-	@echo '  install         install compiled package and manual'
-	@echo '  uninstall       uninstall the package'
-	@echo '  check / test    run standardised tests on the compiled binary'
-	@echo
-	@echo 'Developer targets:'
-	@echo
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-	@echo '  clean           remove .o (object) and .c~ (backup) files'
-	@echo '  depclean        remove .d (dependency) files'
-	@echo '  indentclean     remove files left over from "make indent"'
-	@echo '  distclean       remove everything not distributed'
-	@echo '  cvsclean        remove everything not in CVS/SVN'
-	@echo
-	@echo '  index           generate an HTML index of source code'
-	@echo '  manhtml         output HTML man page to stdout'
-	@echo '  indent          reformat all source files with "indent"'
-	@echo '  update-po       update the .po files'
-	@echo
-	@echo '  dist            create a source tarball for distribution'
-	@echo '  release         create and sign tar.gz and tar.bz2'
-	@echo
-
-make:
-	echo > $(srcdir)/autoconf/make/filelist.mk~
-	echo > $(srcdir)/autoconf/make/modules.mk~
-	cd $(srcdir); \
-	bash autoconf/scripts/makemake.sh \
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-	sh ./config.status
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-dep depend: $(alldep)
-	echo '#' > $(srcdir)/autoconf/make/depend.mk~
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-	cat $(alldep) >> $(srcdir)/autoconf/make/depend.mk~
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-clean:
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-	catalogs='$(CATALOGS)'; \
-	for cat in $$catalogs; do \
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-	  mv $$lang.po $$lang.old.po; \
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-	    rm -f $$lang.old.po; \
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-	    rm -f $$lang.po; \
-	    mv $$lang.old.po $$lang.po; \
-	    chmod 644 $$lang.po; \
-	  fi; \
-	done
-
-distclean: clean depclean
-	rm -f $(alltarg) src/include/config.h
-	rm -rf $(package)-$(version).tar* $(package)-$(version)
-	rm -f *.html config.*
-	rm Makefile
-
-cvsclean svnclean: distclean
-	rm -f doc/lsm
-	rm -f doc/quickref.1
-	rm -f configure
-	rm -f src/nls/*.gmo src/nls/*.mo
-	echo > $(srcdir)/autoconf/make/depend.mk~
-	echo > $(srcdir)/autoconf/make/filelist.mk~
-	echo > $(srcdir)/autoconf/make/modules.mk~
-
-doc:
-	:
-
-index:
-	(cd $(srcdir); sh autoconf/scripts/index.sh $(srcdir)) > index.html
-
-manhtml:
-	@man2html ./doc/quickref.1 \
-	| sed -e '1,/<BODY/d' -e '/<\/BODY/,$$d' \
-	      -e 's|<A [^>]*>&nbsp;</A>||ig' \
-	      -e 's|<A [^>]*>\([^<]*\)</A>|\1|ig' \
-	      -e '/<H1/d' -e 's|\(</H[0-9]>\)|\1<P>|ig' \
-	      -e 's/<DL COMPACT>/<DL>/ig' \
-	      -e 's/&lt;[0-9A-Za-z_.-]\+@[0-9A-Za-z_.-]\+&gt;//g' \
-	      -e 's|<I>\(http://.*\)</I>|<A HREF="\1">\1</A>|ig' \
-	| sed -e '1,/<HR/d' -e '/<H2>Index/,/<HR/d' \
-
-indent:
-	cd $(srcdir) && indent -npro -kr -i8 -cd42 -c45 $(allsrc)
-
-dist: doc update-po
-	rm -rf $(package)-$(version)
-	mkdir $(package)-$(version)
-	cp -dprf Makefile $(distfiles) $(package)-$(version)
-	cd $(package)-$(version); $(MAKE) distclean
-	cp -dpf doc/lsm             $(package)-$(version)/doc/
-	chmod 644 `find $(package)-$(version) -type f -print`
-	chmod 755 `find $(package)-$(version) -type d -print`
-	chmod 755 `find $(package)-$(version)/autoconf/scripts`
-	chmod 755 $(package)-$(version)/configure
-	rm -rf DUMMY `find $(package)-$(version) -type d -name CVS`
-	rm -rf DUMMY `find $(package)-$(version) -type d -name .svn`
-	tar cf $(package)-$(version).tar $(package)-$(version)
-	rm -rf $(package)-$(version)
-	-gzip -f9 $(package)-$(version).tar
-
-check test: $(alltarg)
-	sh $(srcdir)/autoconf/scripts/run-test.sh ./$(package) $(srcdir)
-
-install: all doc
-	$(srcdir)/autoconf/scripts/mkinstalldirs \
-	  "$(DESTDIR)$(bindir)"
-	$(srcdir)/autoconf/scripts/mkinstalldirs \
-	  "$(DESTDIR)$(mandir)/man1"
-	$(INSTALL) -m 755 $(package) \
-	                  "$(DESTDIR)$(bindir)/$(package)"
-	$(INSTALL) -m 644 doc/quickref.1 \
-	                  "$(DESTDIR)$(mandir)/man1/$(package).1"
-	if test -n "$(CATALOGS)"; then \
-	  catalogs='$(CATALOGS)'; \
-	  for cat in $$catalogs; do \
-	    name=`echo $$cat | sed 's,^.*/,,g'`; \
-	    if test "`echo $$name | sed 's/.*\(\..*\)/\1/'`" = ".gmo"; then \
-	      destdir=$(gnulocaledir); \
-	    else \
-	      destdir=$(localedir); \
-	    fi; \
-	    lang=`echo $$name | sed 's/$(CATOBJEXT)$$//'`; \
-	    dir=$(DESTDIR)$$destdir/$$lang/LC_MESSAGES; \
-	    $(srcdir)/autoconf/scripts/mkinstalldirs $$dir; \
-	    $(INSTALL_DATA) $$cat $$dir/$(PACKAGE)$(INSTOBJEXT); \
-	  done; \
-	fi
-
-uninstall:
-	-$(UNINSTALL) "$(DESTDIR)$(bindir)/$(package)"
-	-$(UNINSTALL) "$(DESTDIR)$(mandir)/man1/$(package).1"
-	-$(UNINSTALL) "$(DESTDIR)$(mandir)/man1/$(package).1.gz"
-	-if test -n "$(CATALOGS)"; then \
-	  catalogs='$(CATALOGS)'; \
-	  for cat in $$catalogs; do \
-	    name=`echo $$cat | sed 's,^.*/,,g'`; \
-	    if test "`echo $$name | sed 's/.*\(\..*\)/\1/'`" = ".gmo"; then \
-	      destdir=$(gnulocaledir); \
-	    else \
-	      destdir=$(localedir); \
-	    fi; \
-	    lang=`echo $$name | sed 's/$(CATOBJEXT)$$//'`; \
-	    dir=$(DESTDIR)$$destdir/$$lang/LC_MESSAGES; \
-	    $(UNINSTALL) $$dir/$(PACKAGE)$(INSTOBJEXT); \
-	  done; \
-	fi
-
-release: dist
-	zcat $(package)-$(version).tar.gz | bzip2 > $(package)-$(version).tar.bz2
-	-gpg --list-secret-keys 2>&1 | grep -Fq 'uid' && gpg -ab *.tar.gz && rename .asc .txt *.tar.gz.asc
-	-gpg --list-secret-keys 2>&1 | grep -Fq 'uid' && gpg -ab *.tar.bz2 && rename .asc .txt *.tar.bz2.asc
-	chmod 644 $(package)-$(version)*

autoconf/make/vars.mk

@@ -1,46 +0,0 @@
-#
-# Variables for Make.
-#
-
-srcdir = @srcdir@
-
-prefix = @prefix@
-exec_prefix = @exec_prefix@
-bindir = @bindir@
-infodir = @infodir@
-mandir = @mandir@
-etcdir = @prefix@/etc
-datadir = @datadir@
-datarootdir = @datarootdir@
-sbindir = @sbindir@
-
-VPATH = $(srcdir)
-
-localedir = $(datadir)/locale
-gnulocaledir = $(prefix)/share/locale
-
-CATALOGS = @CATALOGS@
-POFILES = @POFILES@
-GMSGFMT = @GMSGFMT@
-MSGFMT = @MSGFMT@
-XGETTEXT = @XGETTEXT@
-MSGMERGE = msgmerge
-CATOBJEXT = @CATOBJEXT@
-INSTOBJEXT = @INSTOBJEXT@
-
-SHELL = /bin/sh
-CC = @CC@
-INSTALL = @INSTALL@
-INSTALL_DATA = @INSTALL_DATA@
-UNINSTALL = rm -f
-
-LDFLAGS = -r
-LINKFLAGS = @LDFLAGS@
-DEFS = @DEFS@ -DLOCALEDIR=\"$(localedir)\"
-CFLAGS = @CFLAGS@
-CPPFLAGS = @CPPFLAGS@ -I$(srcdir)/src/include -Isrc/include $(DEFS)
-LIBS = @LIBS@
-
-alltarg = @PACKAGE@
-
-# EOF

autoconf/scripts/depend.sh

@@ -1,33 +0,0 @@
-#!/bin/sh
-#
-# Generate dependencies for a C source file.
-#
-
-CC="$1"
-shift
-file="$1"
-shift
-stem="$1"
-shift
-srcdir="$1"
-abssrc=$(echo "$srcdir" | sed ':1
-s,^\./,,g
-t1')
-shift
-
-abssrc=$(echo "$abssrc" | sed 's,\.,\\.,g')
-srcdir=$(echo "$srcdir" | sed 's,\.,\\.,g')
-
-$CC -M -MG "$@" "$file" \
-| sed \
-  -e "s,^.*\.o:,${stem}.d ${stem}.o:," \
-  -e 's,'"$srcdir"'/,,g' \
-  -e 's,'"$abssrc"'/,,g' \
-  -e 's, /[^ ]*,,g' \
-  -e '/^ \\$/d' -e 's/ \\$//' \
-| tr '\n' ' ' \
-| tr -s ' '
-
-echo
-
-# EOF

autoconf/scripts/index.sh

@@ -1,191 +0,0 @@
-#!/bin/sh
-#
-# Script to generate an HTML index of all C code from the current directory
-# downwards (skipping directories ending in ~). The header comment in each
-# file is listed, and each function's prototype and comment are given. A
-# list of "TODO:" comments is also generated.
-#
-# Outputs the HTML on standard output.
-#
-# If a parameter is given, it is the prefix to put before any "view file"
-# links, eg ".." to link to "../dir/file.c" instead of "dir/file.c".
-#
-# Skips any files containing the string !NOINDEX.
-#
-# Requires ctags and cproto.
-#
-
-command -v "ctags" >/dev/null 2>&1  || { echo "${0##*/}: ctags: command not found" 1>&2; exit 1; }
-command -v "cproto" >/dev/null 2>&1 || { echo "${0##*/}: cproto: command not found" 1>&2; exit 1; }
-
-linkPrefix=$1
-test -n "${linkPrefix}" || linkPrefix="."
-
-# Add "/" to the link prefix, and empty it entirely if it ends up just "./".
-linkPrefix=$(echo "${linkPrefix}" | sed 's,/*$,,')
-test "$linkPrefix" = "." && linkPrefix="" || linkPrefix="${linkPrefix}/"
-
-# Convert the given string to HTML-escaped values (<, >, & escaped) on
-# stdout.
-#
-html_safe () {
-	echo "$*" \
-	| sed -e 's|&|\&amp;|g;s|<|\&lt;|g;s|>|\&gt;|g'
-}
-
-
-# Convert the given string to HTML-escaped values (<, >, & escaped) on
-# stdout, also adding a <BR> to the end of each line.
-#
-html_safebr () {
-	echo "$*" \
-	| sed -e 's|&|\&amp;|g;s|<|\&lt;|g;s|>|\&gt;|g;s/$/<BR>/'
-}
-
-allEligibleFiles=$(
-  find . -name '*~' -prune -o -type f -name '*.c' \
-       -exec grep -FL '!NOINDEX' /dev/null '{}' ';'
-)
-
-ctagsOutput=$(
-  echo "${allEligibleFiles}" \
-  | ctags -nRf- -L- --c-types=f \
-  | sed 's/	.\//	/;s/;"	.*$//'
-)
-
-sourceFiles=$(echo "${ctagsOutput}" | cut -d '	' -f 2 | sort | uniq)
-
-echo '<HTML><HEAD>'
-echo '<TITLE>Source Code Index</TITLE>'
-echo '</HEAD><BODY>'
-echo '<H1><A NAME="top">Source Code Index</A></H1>'
-echo '<P><UL>'
-echo '<LI><A HREF="#files">File Listing</A></LI>'
-echo '<LI><A HREF="#funcs">Function Listing</A></LI>'
-echo '<LI><A HREF="#todo">To-Do Listing</A></LI>'
-echo '</UL></P>'
-
-echo '<H2><A NAME="files">File Listing</A></H2>'
-echo '<P><UL>'
-echo "${sourceFiles}" \
-| sed -e \
-  's|^.*$|<LI><CODE CLASS="filename"><A HREF="#file-\0">\0</A></CODE></LI>|'
-echo '</UL></P>'
-
-for sourceFile in ${sourceFiles}; do
-
-	sourceDir="${sourceFile##*/}"
-	test "${sourceDir}" = "${sourceFile}" && sourceDir="."
-	functionPrototypes=$(
-	  cproto -f1 -I. -Isrc/include -I"${sourceDir}" "${sourceFile}" 2>/dev/null \
-	  | sed -n 's/^.*[ *]\([^ *(]*\)(.*$/\1/p'
-	)
-	fileHeaderComment=$(
-	  sed -n -e '1,/\*\//{/\/\*/,/\*\//{s/^[\/ *]//;s/^\*[\/]*//;p;};}' \
-          < "${sourceFile}"
-        )
-	fileShortDescription=$(echo "${fileHeaderComment}" | sed -n '1,/^ *$/{/^ *[^ ]*/p;}')
-	fileLongDescription=$(echo "${fileHeaderComment}" | sed '1,/^ *$/d')
-
-	echo '<P><HR WIDTH="100%"></P>'
-	echo '<P><TABLE BORDER="0"><TR>'
-	echo '<TD VALIGN="TOP"><CODE CLASS="filename">'
-	echo '<A NAME="file-'"${sourceFile}"'">'"${sourceFile}"'</A></CODE></TD>'
-	echo '<TD VALIGN="TOP"> - </TD>'
-	echo '<TD VALIGN="TOP">'"$(html_safe "${fileShortDescription}")"'</TD>'
-	echo '</TR></TABLE></P>'
-	echo '<P><SMALL>[<A HREF="'"${linkPrefix}${sourceFile}"'">View File</A>]</SMALL></P>'
-	echo '<P><BLOCKQUOTE>'
-	html_safebr "${fileLongDescription}"
-	echo '</BLOCKQUOTE></P>'
-
-	if [ -n "${functionPrototypes}" ]; then
-		echo '<P>Functions defined:</P>'
-		echo '<P><UL>'
-		echo "${functionPrototypes}" \
-		| sed 's|^.*$|<A HREF="#func-\0---'"${sourceFile}"'">\0</A>|' \
-		| sed 's/^/<LI><CODE CLASS="funcname">/;s|$|</CODE></LI>|'
-		echo '</UL></P>'
-	fi
-
-	echo '<P ALIGN="RIGHT"><SMALL CLASS="navbar">['
-	echo '<A HREF="#top">Top</A> |'
-	echo '<A HREF="#todo">To Do</A> |'
-	echo '<A HREF="#funcs">Functions</A> ]</SMALL></P>'
-done
-
-echo '<H2><A NAME="funcs">Function Listing</A></H2>'
-echo '<P><UL>'
-
-echo "${ctagsOutput}" | while read -r functionName sourceFile sourceLineNo restOfLine; do
-	echo '<LI><CODE CLASS="funcname"><A' \
-	  'HREF="#func-'"${functionName}"'---'"${sourceFile}"'">'"${functionName}"'</A></CODE>' \
-	  '[<CODE CLASS="filename">'"${sourceFile}"'</CODE>]</LI>'
-done
-echo '</UL></P>'
-
-# shellcheck disable=SC2034
-echo "${ctagsOutput}" | while read -r functionName sourceFile sourceLineNo restOfLine; do
-
-	functionPrototype=$(
-	  sed -n "${sourceLineNo},/{/p" < "${sourceFile}" \
-	  | tr '\n' ' ' \
-	  | tr -d '{'
-	)
-
-	lastCommentOpenLineNo=$(sed -n '1,'"${sourceLineNo}"'{/\/\*/=;}' < "${sourceFile}" | sed -n '$p')
-	test -n "${lastCommentOpenLineNo}" || lastCommentOpenLineNo=1
-	lastCommentCloseLineNo=$(sed -n '1,'"${sourceLineNo}"'{/}/=;}' < "${sourceFile}" | sed -n '$p')
-	test -n "${lastCommentCloseLineNo}" || lastCommentCloseLineNo=1
-	functionHeaderComment=$(
-	  sed -n -e \
-	  "${lastCommentOpenLineNo},"'/\*\//{h;s/^[\/ *]//;s/^\*[\/]*//;p;x;/\*\//q;}' \
-	  < "${sourceFile}"
-	)
-	test "${lastCommentOpenLineNo}" -le "${lastCommentCloseLineNo}" && functionHeaderComment=""
-
-	echo '<P><HR WIDTH="100%"></P>'
-	echo '<P ALIGN="LEFT">'
-	echo '<CODE CLASS="funcname"><A' \
-	  'NAME="func-'"${functionName}"'---'"${sourceFile}"'">'"${functionName}"'</A></CODE>' \
-	  '[<CODE CLASS="filename"><A HREF="#file-'"${sourceFile}"'">'"${sourceFile}"'</A></CODE>]'
-	echo '</P>'
-
-	echo '<P><CODE CLASS="funcdef">'"$(html_safe "${functionPrototype}")"'</CODE></P>'
-
-	echo '<P><BLOCKQUOTE>'
-	html_safebr "${functionHeaderComment}"
-	echo '</BLOCKQUOTE></P>'
-
-	echo '<P ALIGN="RIGHT"><SMALL CLASS="navbar">['
-	echo '<A HREF="#top">Top</A> |'
-	echo '<A HREF="#todo">To Do</A> |'
-	echo '<A HREF="#files">Files</A> ]</SMALL></P>'
-done
-
-echo '<H2><A NAME="todo">To Do Listing</A></H2>'
-echo '<P><UL>'
-for sourceFile in ${sourceFiles}; do
-
-	todoLineNumbers=$(sed -n \
-	               -e '/\/\*.*\*\//!{/\/\*/,/\*\//{/TODO:/{=;};};}' \
-	               -e '/\/\*.*\*\//{/TODO:/{=;};}' \
-	           < "${sourceFile}")
-
-	test -n "${todoLineNumbers}" || continue
-
-	echo '<LI><CODE CLASS="filename"><A' \
-	  'HREF="#file-'"${sourceFile}"'">'"${sourceFile}"'</A></CODE>'
-	echo '<UL>'
-
-	for todoLineNo in ${todoLineNumbers}; do
-		todoNote=$(sed -n "${todoLineNo}"'{s/^.*TODO://;s/\*\/.*$//;p;}' < "${sourceFile}")
-		echo "<LI>[<B>${todoLineNo}</B>] $(html_safe "${todoNote}")</LI>"
-	done
-
-	echo '</UL></LI>'
-done
-
-echo '</BODY></HTML>'
-
-# EOF

autoconf/scripts/install-sh

@@ -1,541 +0,0 @@
-#!/bin/sh
-# install - install a program, script, or datafile
-
-scriptversion=2020-11-14.01; # UTC
-
-# This originates from X11R5 (mit/util/scripts/install.sh), which was
-# later released in X11R6 (xc/config/util/install.sh) with the
-# following copyright and license.
-#
-# Copyright (C) 1994 X Consortium
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to
-# deal in the Software without restriction, including without limitation the
-# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
-# sell copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
-# X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
-# AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC-
-# TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-#
-# Except as contained in this notice, the name of the X Consortium shall not
-# be used in advertising or otherwise to promote the sale, use or other deal-
-# ings in this Software without prior written authorization from the X Consor-
-# tium.
-#
-#
-# FSF changes to this file are in the public domain.
-#
-# Calling this script install-sh is preferred over install.sh, to prevent
-# 'make' implicit rules from creating a file called install from it
-# when there is no Makefile.
-#
-# This script is compatible with the BSD install script, but was written
-# from scratch.
-
-tab='	'
-nl='
-'
-IFS=" $tab$nl"
-
-# Set DOITPROG to "echo" to test this script.
-
-doit=${DOITPROG-}
-doit_exec=${doit:-exec}
-
-# Put in absolute file names if you don't have them in your path;
-# or use environment vars.
-
-chgrpprog=${CHGRPPROG-chgrp}
-chmodprog=${CHMODPROG-chmod}
-chownprog=${CHOWNPROG-chown}
-cmpprog=${CMPPROG-cmp}
-cpprog=${CPPROG-cp}
-mkdirprog=${MKDIRPROG-mkdir}
-mvprog=${MVPROG-mv}
-rmprog=${RMPROG-rm}
-stripprog=${STRIPPROG-strip}
-
-posix_mkdir=
-
-# Desired mode of installed file.
-mode=0755
-
-# Create dirs (including intermediate dirs) using mode 755.
-# This is like GNU 'install' as of coreutils 8.32 (2020).
-mkdir_umask=22
-
-backupsuffix=
-chgrpcmd=
-chmodcmd=$chmodprog
-chowncmd=
-mvcmd=$mvprog
-rmcmd="$rmprog -f"
-stripcmd=
-
-src=
-dst=
-dir_arg=
-dst_arg=
-
-copy_on_change=false
-is_target_a_directory=possibly
-
-usage="\
-Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE
-   or: $0 [OPTION]... SRCFILES... DIRECTORY
-   or: $0 [OPTION]... -t DIRECTORY SRCFILES...
-   or: $0 [OPTION]... -d DIRECTORIES...
-
-In the 1st form, copy SRCFILE to DSTFILE.
-In the 2nd and 3rd, copy all SRCFILES to DIRECTORY.
-In the 4th, create DIRECTORIES.
-
-Options:
-     --help     display this help and exit.
-     --version  display version info and exit.
-
-  -c            (ignored)
-  -C            install only if different (preserve data modification time)
-  -d            create directories instead of installing files.
-  -g GROUP      $chgrpprog installed files to GROUP.
-  -m MODE       $chmodprog installed files to MODE.
-  -o USER       $chownprog installed files to USER.
-  -p            pass -p to $cpprog.
-  -s            $stripprog installed files.
-  -S SUFFIX     attempt to back up existing files, with suffix SUFFIX.
-  -t DIRECTORY  install into DIRECTORY.
-  -T            report an error if DSTFILE is a directory.
-
-Environment variables override the default commands:
-  CHGRPPROG CHMODPROG CHOWNPROG CMPPROG CPPROG MKDIRPROG MVPROG
-  RMPROG STRIPPROG
-
-By default, rm is invoked with -f; when overridden with RMPROG,
-it's up to you to specify -f if you want it.
-
-If -S is not specified, no backups are attempted.
-
-Email bug reports to bug-automake@gnu.org.
-Automake home page: https://www.gnu.org/software/automake/
-"
-
-while test $# -ne 0; do
-  case $1 in
-    -c) ;;
-
-    -C) copy_on_change=true;;
-
-    -d) dir_arg=true;;
-
-    -g) chgrpcmd="$chgrpprog $2"
-        shift;;
-
-    --help) echo "$usage"; exit $?;;
-
-    -m) mode=$2
-        case $mode in
-          *' '* | *"$tab"* | *"$nl"* | *'*'* | *'?'* | *'['*)
-            echo "$0: invalid mode: $mode" >&2
-            exit 1;;
-        esac
-        shift;;
-
-    -o) chowncmd="$chownprog $2"
-        shift;;
-
-    -p) cpprog="$cpprog -p";;
-
-    -s) stripcmd=$stripprog;;
-
-    -S) backupsuffix="$2"
-        shift;;
-
-    -t)
-        is_target_a_directory=always
-        dst_arg=$2
-        # Protect names problematic for 'test' and other utilities.
-        case $dst_arg in
-          -* | [=\(\)!]) dst_arg=./$dst_arg;;
-        esac
-        shift;;
-
-    -T) is_target_a_directory=never;;
-
-    --version) echo "$0 $scriptversion"; exit $?;;
-
-    --) shift
-        break;;
-
-    -*) echo "$0: invalid option: $1" >&2
-        exit 1;;
-
-    *)  break;;
-  esac
-  shift
-done
-
-# We allow the use of options -d and -T together, by making -d
-# take the precedence; this is for compatibility with GNU install.
-
-if test -n "$dir_arg"; then
-  if test -n "$dst_arg"; then
-    echo "$0: target directory not allowed when installing a directory." >&2
-    exit 1
-  fi
-fi
-
-if test $# -ne 0 && test -z "$dir_arg$dst_arg"; then
-  # When -d is used, all remaining arguments are directories to create.
-  # When -t is used, the destination is already specified.
-  # Otherwise, the last argument is the destination.  Remove it from $@.
-  for arg
-  do
-    if test -n "$dst_arg"; then
-      # $@ is not empty: it contains at least $arg.
-      set fnord "$@" "$dst_arg"
-      shift # fnord
-    fi
-    shift # arg
-    dst_arg=$arg
-    # Protect names problematic for 'test' and other utilities.
-    case $dst_arg in
-      -* | [=\(\)!]) dst_arg=./$dst_arg;;
-    esac
-  done
-fi
-
-if test $# -eq 0; then
-  if test -z "$dir_arg"; then
-    echo "$0: no input file specified." >&2
-    exit 1
-  fi
-  # It's OK to call 'install-sh -d' without argument.
-  # This can happen when creating conditional directories.
-  exit 0
-fi
-
-if test -z "$dir_arg"; then
-  if test $# -gt 1 || test "$is_target_a_directory" = always; then
-    if test ! -d "$dst_arg"; then
-      echo "$0: $dst_arg: Is not a directory." >&2
-      exit 1
-    fi
-  fi
-fi
-
-if test -z "$dir_arg"; then
-  do_exit='(exit $ret); exit $ret'
-  trap "ret=129; $do_exit" 1
-  trap "ret=130; $do_exit" 2
-  trap "ret=141; $do_exit" 13
-  trap "ret=143; $do_exit" 15
-
-  # Set umask so as not to create temps with too-generous modes.
-  # However, 'strip' requires both read and write access to temps.
-  case $mode in
-    # Optimize common cases.
-    *644) cp_umask=133;;
-    *755) cp_umask=22;;
-
-    *[0-7])
-      if test -z "$stripcmd"; then
-        u_plus_rw=
-      else
-        u_plus_rw='% 200'
-      fi
-      cp_umask=`expr '(' 777 - $mode % 1000 ')' $u_plus_rw`;;
-    *)
-      if test -z "$stripcmd"; then
-        u_plus_rw=
-      else
-        u_plus_rw=,u+rw
-      fi
-      cp_umask=$mode$u_plus_rw;;
-  esac
-fi
-
-for src
-do
-  # Protect names problematic for 'test' and other utilities.
-  case $src in
-    -* | [=\(\)!]) src=./$src;;
-  esac
-
-  if test -n "$dir_arg"; then
-    dst=$src
-    dstdir=$dst
-    test -d "$dstdir"
-    dstdir_status=$?
-    # Don't chown directories that already exist.
-    if test $dstdir_status = 0; then
-      chowncmd=""
-    fi
-  else
-
-    # Waiting for this to be detected by the "$cpprog $src $dsttmp" command
-    # might cause directories to be created, which would be especially bad
-    # if $src (and thus $dsttmp) contains '*'.
-    if test ! -f "$src" && test ! -d "$src"; then
-      echo "$0: $src does not exist." >&2
-      exit 1
-    fi
-
-    if test -z "$dst_arg"; then
-      echo "$0: no destination specified." >&2
-      exit 1
-    fi
-    dst=$dst_arg
-
-    # If destination is a directory, append the input filename.
-    if test -d "$dst"; then
-      if test "$is_target_a_directory" = never; then
-        echo "$0: $dst_arg: Is a directory" >&2
-        exit 1
-      fi
-      dstdir=$dst
-      dstbase=`basename "$src"`
-      case $dst in
-	*/) dst=$dst$dstbase;;
-	*)  dst=$dst/$dstbase;;
-      esac
-      dstdir_status=0
-    else
-      dstdir=`dirname "$dst"`
-      test -d "$dstdir"
-      dstdir_status=$?
-    fi
-  fi
-
-  case $dstdir in
-    */) dstdirslash=$dstdir;;
-    *)  dstdirslash=$dstdir/;;
-  esac
-
-  obsolete_mkdir_used=false
-
-  if test $dstdir_status != 0; then
-    case $posix_mkdir in
-      '')
-        # With -d, create the new directory with the user-specified mode.
-        # Otherwise, rely on $mkdir_umask.
-        if test -n "$dir_arg"; then
-          mkdir_mode=-m$mode
-        else
-          mkdir_mode=
-        fi
-
-        posix_mkdir=false
-	# The $RANDOM variable is not portable (e.g., dash).  Use it
-	# here however when possible just to lower collision chance.
-	tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
-
-	trap '
-	  ret=$?
-	  rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir" 2>/dev/null
-	  exit $ret
-	' 0
-
-	# Because "mkdir -p" follows existing symlinks and we likely work
-	# directly in world-writeable /tmp, make sure that the '$tmpdir'
-	# directory is successfully created first before we actually test
-	# 'mkdir -p'.
-	if (umask $mkdir_umask &&
-	    $mkdirprog $mkdir_mode "$tmpdir" &&
-	    exec $mkdirprog $mkdir_mode -p -- "$tmpdir/a/b") >/dev/null 2>&1
-	then
-	  if test -z "$dir_arg" || {
-	       # Check for POSIX incompatibilities with -m.
-	       # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
-	       # other-writable bit of parent directory when it shouldn't.
-	       # FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
-	       test_tmpdir="$tmpdir/a"
-	       ls_ld_tmpdir=`ls -ld "$test_tmpdir"`
-	       case $ls_ld_tmpdir in
-		 d????-?r-*) different_mode=700;;
-		 d????-?--*) different_mode=755;;
-		 *) false;;
-	       esac &&
-	       $mkdirprog -m$different_mode -p -- "$test_tmpdir" && {
-		 ls_ld_tmpdir_1=`ls -ld "$test_tmpdir"`
-		 test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1"
-	       }
-	     }
-	  then posix_mkdir=:
-	  fi
-	  rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir"
-	else
-	  # Remove any dirs left behind by ancient mkdir implementations.
-	  rmdir ./$mkdir_mode ./-p ./-- "$tmpdir" 2>/dev/null
-	fi
-	trap '' 0;;
-    esac
-
-    if
-      $posix_mkdir && (
-        umask $mkdir_umask &&
-        $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir"
-      )
-    then :
-    else
-
-      # mkdir does not conform to POSIX,
-      # or it failed possibly due to a race condition.  Create the
-      # directory the slow way, step by step, checking for races as we go.
-
-      case $dstdir in
-        /*) prefix='/';;
-        [-=\(\)!]*) prefix='./';;
-        *)  prefix='';;
-      esac
-
-      oIFS=$IFS
-      IFS=/
-      set -f
-      set fnord $dstdir
-      shift
-      set +f
-      IFS=$oIFS
-
-      prefixes=
-
-      for d
-      do
-        test X"$d" = X && continue
-
-        prefix=$prefix$d
-        if test -d "$prefix"; then
-          prefixes=
-        else
-          if $posix_mkdir; then
-            (umask $mkdir_umask &&
-             $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break
-            # Don't fail if two instances are running concurrently.
-            test -d "$prefix" || exit 1
-          else
-            case $prefix in
-              *\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;;
-              *) qprefix=$prefix;;
-            esac
-            prefixes="$prefixes '$qprefix'"
-          fi
-        fi
-        prefix=$prefix/
-      done
-
-      if test -n "$prefixes"; then
-        # Don't fail if two instances are running concurrently.
-        (umask $mkdir_umask &&
-         eval "\$doit_exec \$mkdirprog $prefixes") ||
-          test -d "$dstdir" || exit 1
-        obsolete_mkdir_used=true
-      fi
-    fi
-  fi
-
-  if test -n "$dir_arg"; then
-    { test -z "$chowncmd" || $doit $chowncmd "$dst"; } &&
-    { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } &&
-    { test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false ||
-      test -z "$chmodcmd" || $doit $chmodcmd $mode "$dst"; } || exit 1
-  else
-
-    # Make a couple of temp file names in the proper directory.
-    dsttmp=${dstdirslash}_inst.$$_
-    rmtmp=${dstdirslash}_rm.$$_
-
-    # Trap to clean up those temp files at exit.
-    trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
-
-    # Copy the file name to the temp name.
-    (umask $cp_umask &&
-     { test -z "$stripcmd" || {
-	 # Create $dsttmp read-write so that cp doesn't create it read-only,
-	 # which would cause strip to fail.
-	 if test -z "$doit"; then
-	   : >"$dsttmp" # No need to fork-exec 'touch'.
-	 else
-	   $doit touch "$dsttmp"
-	 fi
-       }
-     } &&
-     $doit_exec $cpprog "$src" "$dsttmp") &&
-
-    # and set any options; do chmod last to preserve setuid bits.
-    #
-    # If any of these fail, we abort the whole thing.  If we want to
-    # ignore errors from any of these, just make sure not to ignore
-    # errors from the above "$doit $cpprog $src $dsttmp" command.
-    #
-    { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } &&
-    { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } &&
-    { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } &&
-    { test -z "$chmodcmd" || $doit $chmodcmd $mode "$dsttmp"; } &&
-
-    # If -C, don't bother to copy if it wouldn't change the file.
-    if $copy_on_change &&
-       old=`LC_ALL=C ls -dlL "$dst"     2>/dev/null` &&
-       new=`LC_ALL=C ls -dlL "$dsttmp"  2>/dev/null` &&
-       set -f &&
-       set X $old && old=:$2:$4:$5:$6 &&
-       set X $new && new=:$2:$4:$5:$6 &&
-       set +f &&
-       test "$old" = "$new" &&
-       $cmpprog "$dst" "$dsttmp" >/dev/null 2>&1
-    then
-      rm -f "$dsttmp"
-    else
-      # If $backupsuffix is set, and the file being installed
-      # already exists, attempt a backup.  Don't worry if it fails,
-      # e.g., if mv doesn't support -f.
-      if test -n "$backupsuffix" && test -f "$dst"; then
-        $doit $mvcmd -f "$dst" "$dst$backupsuffix" 2>/dev/null
-      fi
-
-      # Rename the file to the real destination.
-      $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null ||
-
-      # The rename failed, perhaps because mv can't rename something else
-      # to itself, or perhaps because mv is so ancient that it does not
-      # support -f.
-      {
-        # Now remove or move aside any old file at destination location.
-        # We try this two ways since rm can't unlink itself on some
-        # systems and the destination file might be busy for other
-        # reasons.  In this case, the final cleanup might fail but the new
-        # file should still install successfully.
-        {
-          test ! -f "$dst" ||
-          $doit $rmcmd "$dst" 2>/dev/null ||
-          { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null &&
-            { $doit $rmcmd "$rmtmp" 2>/dev/null; :; }
-          } ||
-          { echo "$0: cannot unlink or rename $dst" >&2
-            (exit 1); exit 1
-          }
-        } &&
-
-        # Now rename the file to the real destination.
-        $doit $mvcmd "$dsttmp" "$dst"
-      }
-    fi || exit 1
-
-    trap '' 0
-  fi
-done
-
-# Local variables:
-# eval: (add-hook 'before-save-hook 'time-stamp)
-# time-stamp-start: "scriptversion="
-# time-stamp-format: "%:y-%02m-%02d.%02H"
-# time-stamp-time-zone: "UTC0"
-# time-stamp-end: "; # UTC"
-# End:

autoconf/scripts/makemake.sh

@@ -1,125 +0,0 @@
-#!/bin/sh
-#
-# Generate Makefile components "filelist.mk~" (list source, object, and
-# dependency files) and "modules.mk~" (linking rules for each directory's
-# overall object file) by scanning the directory "src" for files ending in
-# ".c", and for subdirectories not starting with "_".
-#
-# Modules live inside subdirectories called [^_]* - i.e. a directory "foo" will
-# have a rule created which links all code inside it to "foo.o".
-#
-# The directory "src/include" is never scanned; neither are CVS or SVN
-# directories.
-#
-
-listingsFile="$1"
-linkingRulesFile="$2"
-
-FIND="find"
-GREP="grep"
-command -v gfind 2>/dev/null | grep /gfind >/dev/null && FIND="gfind"
-command -v which ggrep 2>/dev/null | grep /ggrep >/dev/null && GREP="ggrep"
-
-{
-echo '# Automatically generated file listings'
-echo '#'
-echo "# Creation time: $(date)"
-echo
-} > "${listingsFile}"
-
-{
-echo '# Automatically generated module linking rules'
-echo '#'
-echo "# Creation time: $(date)"
-echo
-} > "${linkingRulesFile}"
-
-printf "%s" "Scanning for source files: "
-
-allsrc=$("${FIND}" src -type f -name "*.c" -print)
-allobj=$(echo "${allsrc}" | tr ' ' '\n' | sed 's/\.c$/.o/')
-alldep=$(echo "${allsrc}" | tr ' ' '\n' | sed 's/\.c$/.d/')
-
-echo "$(echo "${allsrc}" | wc -w | tr -d ' ') found"
-
-printf "%s" "Scanning for modules: "
-
-modules=$("${FIND}" src -type d -print \
-         | "${GREP}" -v '^src$' \
-         | "${GREP}" -v '/_' \
-         | "${GREP}" -v '^src/include' \
-         | "${GREP}" -v 'CVS' \
-         | "${GREP}" -v '.svn' \
-         | while read -r DIR; do \
-           CONTENT=$(/bin/ls -d "${DIR}"/* \
-                     | "${GREP}" -v '.po$' \
-                     | "${GREP}" -v '.gmo$' \
-                     | "${GREP}" -v '.mo$' \
-                     | "${GREP}" -v '.h$' \
-                     | sed -n '$p'); \
-           [ -n "$CONTENT" ] || continue; \
-           echo "${DIR}"; \
-	   done
-         )
-
-echo "up to $(echo "${modules}" | wc -w | tr -d ' ') found"
-
-echo "Writing module linking rules"
-
-printf "%s" "["
-for i in ${modules}; do printf "%s" " "; done
-printf "%s\r%s" "]" "["
-
-for i in ${modules}; do
-  printf "%s" "."
-  allobj="${allobj} ${i}.o"
-  deps=""
-  for j in "${i}"/*.c; do
-    [ -f "$j" ] || continue
-    newobj=$(echo "$j" | sed -e 's@\.c$@.o@')
-    deps="$deps $newobj"
-  done
-  for j in "${i}"/*; do
-    [ -d "$j" ] || continue
-    [ "$(basename "$j")" = "CVS" ] && continue
-    [ "$(basename "$j")" = ".svn" ] && continue
-    CONTENT=$(/bin/ls -d "$j"/* \
-             | "${GREP}" -v '.po$' \
-             | "${GREP}" -v '.gmo$' \
-             | "${GREP}" -v '.mo$' \
-             | "${GREP}" -v '.h$' \
-             | sed -n '$p')
-    [ -n "$CONTENT" ] || continue
-    deps="$deps $j.o"
-  done
-  [ -n "$deps" ] || continue
-  {
-  echo "$i.o: $deps"
-  echo "	\$(LD) \$(LDFLAGS) -o \$@ $deps"
-  echo
-  } >> "${linkingRulesFile}"
-done
-
-echo ']'
-
-echo "Listing source, object and dependency files"
-
-{
-printf "%s" "allsrc = "
-echo "$allsrc" | tr '\n' ' ' | sed 's,src/nls/cat-id-tbl.c,,' | sed -e 's/ $//;s/ / \\!/g' \
-| tr '!' '\n'
-echo
-echo
-printf "%s" "allobj = "
-echo "$allobj" | tr '\n' ' ' | sed -e 's/ $//;s/ / \\!/g' | tr '!' '\n'
-echo
-echo
-printf "%s" "alldep = "
-echo "$alldep" | tr '\n' ' ' | sed -e 's/ $//;s/ / \\!/g' | tr '!' '\n'
-echo
-echo
-} >> "${listingsFile}"
-
-echo >> "${linkingRulesFile}"
-
-# EOF

autoconf/scripts/mkinstalldirs

@@ -1,33 +0,0 @@
-#!/bin/sh
-# mkinstalldirs --- make directory hierarchy
-# Author: Noah Friedman <friedman@prep.ai.mit.edu>
-# Created: 1993-05-16
-# Last modified: 1994-03-25
-# Public domain
-
-errstatus=0
-
-for file in ${1+"$@"} ; do 
-   set fnord `echo ":$file" | sed -ne 's/^:\//#/;s/^://;s/\// /g;s/^#/\//;p'`
-   shift
-
-   pathcomp=
-   for d in ${1+"$@"} ; do
-     pathcomp="$pathcomp$d"
-     case "$pathcomp" in
-       -* ) pathcomp=./$pathcomp ;;
-     esac
-
-     if test ! -d "$pathcomp"; then
-        echo "mkdir $pathcomp" 1>&2
-        mkdir "$pathcomp" || errstatus=$?
-        chmod 755 $pathcomp 2>/dev/null
-     fi
-
-     pathcomp="$pathcomp/"
-   done
-done
-
-exit $errstatus
-
-# mkinstalldirs ends here

autoconf/scripts/po2table.sh

@@ -1,63 +0,0 @@
-#!/bin/sh
-#
-# Messy script to convert all of the given .po files to a single C file on
-# stdout.
-
-cat <<EOF
-/*
- * Translation table - automatically generated by po2table.sh.
- */
-
-#include "config.h"
-#include <string.h>
-
-struct msgtable_s {
-	char *msgid;
-	char *msgstr;
-};
-
-
-struct msgtable_s *minigettext__gettable(char *lang)
-{
-	if (0 == lang)
-		return 0;
-
-EOF
-
-for POFILE in "$@"; do
-	LANG=$(basename "$POFILE" | sed 's/.po$//')
-	echo "	if (strncmp(lang, \"$LANG\", 2) == 0) {"
-	echo "		static struct msgtable_s data[] = {";
-
-	awk 'BEGIN{i=0;s=0;}
-	  /^msgid[ 	]+/ {
-	    if (s) print "			}, ";
-	    print "			{";
-	    print "				" substr($0,7);
-	    i=1;
-	    s=0;
-	  }
-	  /^msgstr[ 	]+/ {
-	    print "			,";
-	    i=0;s=1;
-	    print "				" substr($0,8);
-	  }
-	  /^[ 	]*"/ {
-	    if (i||s) print "				" $0;
-	  }
-	  END {if (i||s) print "			}\n";}
-	' < "$POFILE"
-	echo '			, { 0, 0 } };'
-	echo "		return data;"
-	echo "	}"
-done
-
-cat <<EOF
-
-	return 0;
-}
-
-/* EOF */
-EOF
-
-# EOF

autoconf/scripts/run-test.sh

@@ -1,210 +0,0 @@
-#!/bin/sh
-#
-# Parameters: testSubject sourcePath [testScript...]
-#
-# Run one or more test scripts.  The ${testSubject} is the path of the test
-# subject program, and the ${sourcePath} is the path to the top level of the
-# source directory.  If any ${testScript} parameters are given, they are the
-# tests to run (each one being either the full path to a script, or the base
-# filename of the script in the test directory).  If no test scripts are
-# listed, then all tests directly under "${sourcePath}/tests/" are run.
-#
-# Test scripts should be written to exit 0 if the test passed, 2 if the test
-# is to be skipped, or any other exit status to indicate failure.  They are
-# run via "sh -e", so any command exiting non-zero will cause the test
-# script to exit early.
-#
-# The test scripts can rely on the environment variables "testSubject",
-# "sourcePath", "workFile1", "workFile2", "workFile3", and "workFile4" being
-# populated, and should use those work files - which will be present and
-# empty - for scratch space.  They should not delete those files.
-#
-# When the test scripts are called, LANG and LC_ALL are set to "C".
-#
-# Anything output by a test script on stdout or stderr is captured and shown
-# after the "OK" / "FAILED" / "skipped" result description.
-#
-# The exit status of this script will be 1 if any test failed, 0 otherwise. 
-# A skipped test is not counted as a failure.
-#
-
-# Parameters.
-testSubject="$1"
-sourcePath="$2"
-shift
-shift
-selectedTests="$*"
-
-# Constants.
-formatCodesPass="setaf 2;bold"	# terminal capabilities for "pass" formatting
-formatCodesFail="setaf 1;bold"	# terminal capabilities for "fail" formatting
-formatCodesSkip="setaf 3"	# terminal capabilities for "skip" formatting
-formatCodesZero="setaf 4"	# terminal capabilities for zero result
-
-# Temporary working files, for the test scripts to use.
-workFile1=$(mktemp 2>/dev/null) || workFile1="./.tmp1"
-workFile2=$(mktemp 2>/dev/null) || workFile2="./.tmp2"
-workFile3=$(mktemp 2>/dev/null) || workFile3="./.tmp3"
-workFile4=$(mktemp 2>/dev/null) || workFile4="./.tmp4"
-
-# Clean up the temporary files on exit, in case we are interrupted.
-trap 'rm -f "${workFile1}" "${workFile2}" "${workFile3}" "${workFile4}"' EXIT
-
-# Variables used by the test scripts.
-export testSubject sourcePath workFile1 workFile2 workFile3 workFile4
-
-# Set everything to the "C" locale.
-LANG=C
-LC_ALL=C
-export LANG LC_ALL
-
-# If no tests were specified, list all test scripts under the source path.
-test -n "${selectedTests}" || selectedTests=$(find "${sourcePath}/tests" -maxdepth 1 -type f | sort -n)
-
-# Initial pass to count the number of tests and find the length of the
-# longest test name, to use when formatting the output.
-#
-numberOfTests=0
-maxTestNameLength=0
-for testScript in ${selectedTests}; do
-	# Find the test script, make sure it exists.
-	test -f "${testScript}" || testScript="${sourcePath}/tests/${testScript}"
-	test -f "${testScript}" || testScript=$(find "${sourcePath}/tests" -maxdepth 1 -type f -name "${testScript##*/}*" | sed -n '1p')
-	test -f "${testScript}" || continue
-
-	numberOfTests=$((1+numberOfTests))
-
-	testScriptLeaf="${testScript##*/}"
-	testName="$(echo "${testScriptLeaf%.sh}" | tr '_' ' ' | sed 's/ - /: /')"
-	testNameLength=${#testName}
-	test "${testNameLength}" -gt "${maxTestNameLength}" && maxTestNameLength="${testNameLength}"
-done
-
-# Set a minimum and maximum test name length.
-test "${maxTestNameLength}" -lt 10 && maxTestNameLength=10
-test "${maxTestNameLength}" -gt 60 && maxTestNameLength=60
-
-# Count the number of digits in the number of tests so we know how wide the
-# column for the test count should be.
-testCountWidth=${#numberOfTests}
-
-# Get the terminal width, for later display formatting calculations.
-#
-# We have to fiddle with `stty' because $COLUMNS is only in `bash', `resize`
-# is not available everywhere, and `stty' itself varies in its output format
-# between "columns 158" and "158 cols".
-#
-terminalWidth=80
-test -t 1 && terminalWidth=$(stty -a 2>/dev/null | tr ';' '\n' | grep -e cols -e columns | tr ' ' '\n' | grep '[0-9]' | sed -n 1p)
-test -n "${terminalWidth}" || terminalWidth=80
-
-# Remaining space left on each line after the result description.
-colsUsed=$((testCountWidth + 1 + testCountWidth + 2 + maxTestNameLength + 2 + 8 + 2))
-colsRemaining=0
-test "${colsUsed}" -lt "${terminalWidth}" && colsRemaining=$((terminalWidth - colsUsed))
-
-# Run all of the selected test scripts, formatting the output.
-#
-testPassCount=0
-testFailCount=0
-testSkipCount=0
-testNumber=0
-for testScript in ${selectedTests}; do
-	# Find the test script, make sure it exists.
-	test -f "${testScript}" || testScript="${sourcePath}/tests/${testScript}"
-	test -f "${testScript}" || testScript=$(find "${sourcePath}/tests" -maxdepth 1 -type f -name "${testScript##*/}*" | sed -n '1p')
-	test -f "${testScript}" || continue
-
-	testNumber=$((1+testNumber))
-
-	testScriptLeaf="${testScript##*/}"
-	testName="$(echo "${testScriptLeaf%.sh}" | tr '_' ' ' | sed 's/ - /: /')"
-	printf "%${testCountWidth}d/%d: %-${maxTestNameLength}.${maxTestNameLength}s  " "${testNumber}" "${numberOfTests}"  "${testName}"
-
-	# Run the test script, capturing the output and the exit status.
-	testExitStatus=0
-	testOutput=""
-	if test -s "${testScript}"; then
-		true > "${workFile1}"
-		true > "${workFile2}"
-		true > "${workFile3}"
-		true > "${workFile4}"
-		testOutput=$(sh -e "${testScript}" 2>&1)
-		testExitStatus=$?
-	else
-		testOutput="test script has not yet been written"
-		testExitStatus=2
-	fi
-
-	# Work out what we're going to say about this test result.
-	testResultDescription=""
-	resultFormatCodes=""
-	if test ${testExitStatus} -eq 0; then
-		resultFormatCodes="${formatCodesPass}"
-		testResultDescription="OK"
-		testPassCount=$((1+testPassCount))
-	elif test ${testExitStatus} -eq 2; then
-		resultFormatCodes="${formatCodesSkip}"
-		testResultDescription="skipped"
-		testSkipCount=$((1+testSkipCount))
-	else
-		resultFormatCodes="${formatCodesFail}"
-		testResultDescription="FAILED"
-		testFailCount=$((1+testFailCount))
-	fi
-
-	# If stdout is not a terminal, don't use terminal format codes.
-	test -t 1 || resultFormatCodes=""
-
-	# Show the description of the test result, and start a new line.
-	test -n "${resultFormatCodes}" && command -v tput >/dev/null 2>&1 && echo "${resultFormatCodes}" | tr ';' '\n' | tput -S 2>/dev/null
-	printf "%s" "${testResultDescription}"
-
-	# If there was any output from the test, display it - either on the
-	# current line, if there's space, or the next line, with each line
-	# prefixed with the test number.
-	if test -n "${testOutput}"; then
-		if test "${#testOutput}" -lt "${colsRemaining}" && ! test "$(echo "${testOutput}" | wc -l | tr -dc '0-9')" -gt 1 2>/dev/null; then
-			printf " - %s" "${testOutput}"
-		else
-			printf "\n%s" "$(echo "${testOutput}" | sed "s,^,$(printf "%${testCountWidth}d/%d: - " "${testNumber}" "${numberOfTests}"),")"
-		fi
-	fi
-	printf "\n"
-
-	test -n "${resultFormatCodes}" && command -v tput >/dev/null 2>&1 && tput sgr0 2>/dev/null
-done
-
-# Clean up.
-rm -f "${workFile1}" "${workFile2}" "${workFile3}" "${workFile4}"
-trap '' EXIT
-
-# Report the totals.
-printf "\n"
-printf "%s: " "Tests passed"
-numberFormatting="${formatCodesPass}"
-test "${testPassCount}" -gt 0 || numberFormatting="${formatCodesZero}"
-test -t 1 && command -v tput >/dev/null 2>&1 && echo "${numberFormatting}" | tr ';' '\n' | tput -S 2>/dev/null
-printf "%d" "${testPassCount}"
-test -t 1 && command -v tput >/dev/null 2>&1 && tput sgr0 2>/dev/null
-
-printf "   %s: " "Tests failed"
-numberFormatting="${formatCodesFail}"
-test "${testFailCount}" -gt 0 || numberFormatting="${formatCodesZero}"
-test -t 1 && command -v tput >/dev/null 2>&1 && echo "${numberFormatting}" | tr ';' '\n' | tput -S 2>/dev/null
-printf "%d" "${testFailCount}"
-test -t 1 && command -v tput >/dev/null 2>&1 && tput sgr0 2>/dev/null
-
-printf "   %s: " "Tests skipped"
-numberFormatting="${formatCodesSkip}"
-test "${testSkipCount}" -gt 0 || numberFormatting="${formatCodesZero}"
-test -t 1 && command -v tput >/dev/null 2>&1 && echo "${numberFormatting}" | tr ';' '\n' | tput -S 2>/dev/null
-printf "%d" "${testSkipCount}"
-test -t 1 && command -v tput >/dev/null 2>&1 && tput sgr0 2>/dev/null
-printf "\n"
-
-# Exit with status 1 if any test failed outright, 0 otherwise.
-test "${testFailCount}" -eq 0 || exit 1
-exit 0
-
-# EOF

configure.ac

@@ -0,0 +1,131 @@
+dnl Process this file with autoconf to produce a configure script.
+dnl
+dnl Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2024 Andrew Wood
+dnl
+dnl License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
+
+AC_INIT([pv], [1.8.9], [pv@ivarch.com], [pv], [https://www.ivarch.com/programs/pv.shtml])
+AC_CONFIG_SRCDIR([src/include/config.h.in])
+AC_CONFIG_AUX_DIR([build-aux])
+AC_CONFIG_HEADERS([src/include/config.h])
+AM_INIT_AUTOMAKE([-Wall -Werror foreign])
+AC_LANG(C)
+AC_PROG_CC
+AC_PROG_INSTALL
+AC_USE_SYSTEM_EXTENSIONS
+AC_C_CONST
+AC_HEADER_STDBOOL
+AC_SYS_LARGEFILE
+AM_GNU_GETTEXT_VERSION([0.21])
+AM_GNU_GETTEXT([external])
+if test "$USE_NLS" = "yes"; then
+  CPPFLAGS="$CPPFLAGS -DLOCALEDIR=\\\"\$(localedir)\\\""
+  LIBS="$LIBS $LIBINTL"
+fi
+
+dnl Items we can use if present, but can do without if not present.
+AC_CHECK_FUNCS([getopt_long])
+AC_CHECK_FUNCS([vsnprintf strlcat strtoul memrchr])
+AC_CHECK_FUNCS([fdatasync])
+AC_CHECK_FUNCS([fpathconf sysconf posix_memalign posix_fadvise])
+AC_CHECK_FUNCS([nanosleep])
+AC_CHECK_FUNCS([setitimer])
+AC_CHECK_HEADERS([getopt.h])
+AC_CHECK_HEADERS([limits.h])
+AC_CHECK_HEADERS([wctype.h])
+AC_CHECK_HEADERS([termios.h])
+AC_CHECK_HEADERS([libgen.h])
+AC_CHECK_HEADERS([sys/ioctl.h])
+AC_CHECK_HEADERS([libintl.h locale.h])
+AC_CHECK_MEMBERS([struct stat.st_blksize])
+
+dnl Libraries that may contain key functions.
+AC_SEARCH_LIBS([clock_gettime],[rt])
+
+dnl Items we can't do without.
+AC_CHECK_FUNCS([alarm basename clock_gettime dup2 getcwd memcpy memmove memset select setlocale strchr strerror strrchr strstr], [], [AC_MSG_ERROR([required function is missing])])
+AC_CHECK_HEADERS([fcntl.h sys/file.h sys/time.h unistd.h], [], [AC_MSG_ERROR([required header file is missing])])
+
+dnl Make sure all the types we use are defined.
+AC_TYPE_INT32_T
+AC_TYPE_MODE_T
+AC_TYPE_OFF_T
+AC_TYPE_PID_T
+AC_TYPE_SIZE_T
+AC_TYPE_SSIZE_T
+AC_TYPE_UID_T
+
+AH_BOTTOM([#include "config-aux.h"])
+
+AC_ARG_ENABLE([debugging],
+  [  --enable-debugging      compile with debugging support],
+  if test "$enable_debugging" = "yes"; then
+  	CFLAGS="$CFLAGS -g -Wall"
+	AC_DEFINE([ENABLE_DEBUGGING], [1], [Debugging support enabled])
+  fi
+)
+
+AC_ARG_ENABLE([profiling],
+  [  --enable-profiling      compile with profiling support],
+  if test "$enable_profiling" = "yes"; then
+  	CFLAGS="-pg $CFLAGS"
+  fi
+)
+
+SPLICE_SUPPORT="no"
+AC_ARG_ENABLE([splice], [  --disable-splice        do not use splice system call],
+  if test "$enable_splice" = "yes"; then
+    SPLICE_SUPPORT="yes"
+  fi,
+  SPLICE_SUPPORT="yes"
+)
+
+IPC_SUPPORT="no"
+AC_ARG_ENABLE([ipc], [  --disable-ipc           turn off IPC messaging],
+  if test "$enable_ipc" = "yes"; then
+    IPC_SUPPORT="yes"
+  fi,
+  IPC_SUPPORT="yes"
+)
+
+AC_ARG_ENABLE([static],
+  [AS_HELP_STRING([--enable-static], [enable static linking])],
+  [
+    if test "$enable_static" = "yes"; then
+      CFLAGS="$CFLAGS -static"
+    fi
+  ])
+
+dnl AIX needs -lc128
+AC_EGREP_CPP([^yes$], [#ifdef _AIX
+yes
+#endif
+], [LIBS="$LIBS -lc128"])
+
+if test "$IPC_SUPPORT" = "yes"; then
+  AC_CHECK_HEADERS([sys/ipc.h], [], [IPC_SUPPORT=no])
+  AC_CHECK_HEADERS([sys/param.h])
+  if test "$IPC_SUPPORT" = "yes"; then
+    AC_CHECK_FUNCS([shmget], [], [IPC_SUPPORT=no])
+  fi
+fi
+
+if test "$IPC_SUPPORT" = "yes"; then
+  AC_DEFINE([HAVE_IPC], [1], [IPC support enabled])
+fi
+
+if test "$SPLICE_SUPPORT" = "yes"; then
+  AC_CHECK_FUNCS([splice])
+fi
+
+CPPFLAGS="$CPPFLAGS -I\$(top_srcdir)/src/include"
+
+dnl This must go after all the compiler based tests above.
+AC_LANG_WERROR
+
+AC_CONFIG_FILES([
+ po/Makefile.in
+ Makefile
+])
+
+AC_OUTPUT

doc/COPYING

@@ -1,171 +0,0 @@
-This package is free software, and is being distributed under the terms
-of the Artistic License 2.0.
-
-----------------------------------------------------------
-
-Artistic License 2.0
-
-Copyright (c) 2000-2006, The Perl Foundation.
-
-Everyone is permitted to copy and distribute verbatim copies of this
-license document, but changing it is not allowed.  Preamble
-
-This license establishes the terms under which a given free software
-Package may be copied, modified, distributed, and/or redistributed. The
-intent is that the Copyright Holder maintains some artistic control
-over the development of that Package while still keeping the Package
-available as open source and free software.
-
-You are always permitted to make arrangements wholly outside of this
-license directly with the Copyright Holder of a given Package. If the
-terms of this license do not permit the full use that you propose to
-make of the Package, you should contact the Copyright Holder and seek
-a different licensing arrangement.  Definitions
-
-"Copyright Holder" means the individual(s) or organization(s) named in
-the copyright notice for the entire Package.
-
-"Contributor" means any party that has contributed code or other material
-to the Package, in accordance with the Copyright Holder's procedures.
-
-"You" and "your" means any person who would like to copy, distribute,
-or modify the Package.
-
-"Package" means the collection of files distributed by the Copyright
-Holder, and derivatives of that collection and/or of those files. A given
-Package may consist of either the Standard Version, or a Modified Version.
-
-"Distribute" means providing a copy of the Package or making it accessible
-to anyone else, or in the case of a company or organization, to others
-outside of your company or organization.
-
-"Distributor Fee" means any fee that you charge for Distributing this
-Package or providing support for this Package to another party. It does
-not mean licensing fees.
-
-"Standard Version" refers to the Package if it has not been modified,
-or has been modified only in ways explicitly requested by the Copyright
-Holder.
-
-"Modified Version" means the Package, if it has been changed, and such
-changes were not explicitly requested by the Copyright Holder.
-
-"Original License" means this Artistic License as Distributed with the
-Standard Version of the Package, in its current version or as it may be
-modified by The Perl Foundation in the future.
-
-"Source" form means the source code, documentation source, and
-configuration files for the Package.
-
-"Compiled" form means the compiled bytecode, object code, binary, or any
-other form resulting from mechanical transformation or translation of
-the Source form.  Permission for Use and Modification Without Distribution
-
-(1) You are permitted to use the Standard Version and create and use
-Modified Versions for any purpose without restriction, provided that you
-do not Distribute the Modified Version.  Permissions for Redistribution
-of the Standard Version
-
-(2) You may Distribute verbatim copies of the Source form of the Standard
-Version of this Package in any medium without restriction, either gratis
-or for a Distributor Fee, provided that you duplicate all of the original
-copyright notices and associated disclaimers. At your discretion, such
-verbatim copies may or may not include a Compiled form of the Package.
-
-(3) You may apply any bug fixes, portability changes, and other
-modifications made available from the Copyright Holder. The resulting
-Package will still be considered the Standard Version, and as such will
-be subject to the Original License.  Distribution of Modified Versions
-of the Package as Source
-
-(4) You may Distribute your Modified Version as Source (either gratis
-or for a Distributor Fee, and with or without a Compiled form of the
-Modified Version) provided that you clearly document how it differs
-from the Standard Version, including, but not limited to, documenting
-any non-standard features, executables, or modules, and provided that
-you do at least ONE of the following:
-
-(a) make the Modified Version available to the Copyright Holder of the
-Standard Version, under the Original License, so that the Copyright Holder
-may include your modifications in the Standard Version.
-(b) ensure that installation of your Modified Version does not prevent the
-user installing or running the Standard Version. In addition, the Modified
-Version must bear a name that is different from the name of the Standard
-Version.
-(c) allow anyone who receives a copy of the Modified Version to make
-the Source form of the Modified Version available to others under
-(i) the Original License or
-(ii) a license that permits the licensee to freely copy, modify and
-redistribute the Modified Version using the same licensing terms that apply
-to the copy that the licensee received, and requires that the Source form of
-the Modified Version, and of any works derived from it, be made freely
-available in that license fees are prohibited but Distributor Fees are
-allowed.  Distribution of Compiled Forms of the Standard Version or Modified
-Versions without the Source
-
-(5) You may Distribute Compiled forms of the Standard Version without
-the Source, provided that you include complete instructions on how to
-get the Source of the Standard Version. Such instructions must be valid
-at the time of your distribution. If these instructions, at any time
-while you are carrying out such distribution, become invalid, you must
-provide new instructions on demand or cease further distribution. If
-you provide valid instructions or cease distribution within thirty days
-after you become aware that the instructions are invalid, then you do
-not forfeit any of your rights under this license.
-
-(6) You may Distribute a Modified Version in Compiled form without the
-Source, provided that you comply with Section 4 with respect to the
-Source of the Modified Version.  Aggregating or Linking the Package
-
-(7) You may aggregate the Package (either the Standard Version or
-Modified Version) with other packages and Distribute the resulting
-aggregation provided that you do not charge a licensing fee for the
-Package. Distributor Fees are permitted, and licensing fees for other
-components in the aggregation are permitted. The terms of this license
-apply to the use and Distribution of the Standard or Modified Versions
-as included in the aggregation.
-
-(8) You are permitted to link Modified and Standard Versions with other
-works, to embed the Package in a larger work of your own, or to build
-stand-alone binary or bytecode versions of applications that include the
-Package, and Distribute the result without restriction, provided the
-result does not expose a direct interface to the Package.  Items That
-are Not Considered Part of a Modified Version
-
-(9) Works (including, but not limited to, modules and scripts) that
-merely extend or make use of the Package, do not, by themselves, cause
-the Package to be a Modified Version. In addition, such works are not
-considered parts of the Package itself, and are not subject to the terms
-of this license.  General Provisions
-
-(10) Any use, modification, and distribution of the Standard or Modified
-Versions is governed by this Artistic License. By using, modifying or
-distributing the Package, you accept this license. Do not use, modify,
-or distribute the Package, if you do not accept this license.
-
-(11) If your Modified Version has been derived from a Modified Version
-made by someone other than you, you are nevertheless required to ensure
-that your Modified Version complies with the requirements of this license.
-
-(12) This license does not grant you the right to use any trademark,
-service mark, tradename, or logo of the Copyright Holder.
-
-(13) This license includes the non-exclusive, worldwide, free-of-charge
-patent license to make, have made, use, offer to sell, sell, import
-and otherwise transfer the Package with respect to any patent claims
-licensable by the Copyright Holder that are necessarily infringed by the
-Package. If you institute patent litigation (including a cross-claim or
-counterclaim) against any party alleging that the Package constitutes
-direct or contributory patent infringement, then this Artistic License
-to you shall terminate on the date that such litigation is filed.
-
-(14) Disclaimer of Warranty: THE PACKAGE IS PROVIDED BY THE COPYRIGHT
-HOLDER AND CONTRIBUTORS "AS IS' AND WITHOUT ANY EXPRESS OR IMPLIED
-WARRANTIES. THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
-PARTICULAR PURPOSE, OR NON-INFRINGEMENT ARE DISCLAIMED TO THE EXTENT
-PERMITTED BY YOUR LOCAL LAW. UNLESS REQUIRED BY LAW, NO COPYRIGHT HOLDER
-OR CONTRIBUTOR WILL BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, OR
-CONSEQUENTIAL DAMAGES ARISING IN ANY WAY OUT OF THE USE OF THE PACKAGE,
-EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-----------------------------------------------------------

doc/PACKAGE

@@ -1 +0,0 @@
-pv

doc/TODO.md

@@ -1,48 +0,0 @@
-Things still to do.  (GH#n) indicates the Github issue tracker number.
-
-Bugs
-----
-
- * ([GH#5](https://github.com/a-j-wood/pv/issues/5)) Transfer IPC leadership on exit of leader
- * ([GH#13](https://github.com/a-j-wood/pv/issues/13)) Use `clock_gettime()` in ETA calculation to cope with machine suspend/resume (Mateju Miroslav)
- * ([GH#20](https://github.com/a-j-wood/pv/issues/20)) Terminal state is not restored correctly in all cases (VA)
- * ([GH#24](https://github.com/a-j-wood/pv/issues/24)) Race condition with multiple "`pv -c`" leaves terminal state inconsistent (Lars Ellenberg, Viktor Ashirov)
- * ([GH#34](https://github.com/a-j-wood/pv/issues/34)) Continue timer even if input or output is blocking (Martin Probst - Jun 2017)
- * ([GH#69](https://github.com/a-j-wood/pv/issues/69)) Configure issue for stat64
- * ([GH#70](https://github.com/a-j-wood/pv/issues/70)) New compilation warnings
- * ([GH#71](https://github.com/a-j-wood/pv/issues/71)) Debian complains about old OpenPGP signatures
-
-Feature requests
-----------------
-
- * ([GH#3](https://github.com/a-j-wood/pv/issues/3)) Option ("`-x`"?) to use xterm title line for status (Joachim Haga)
- * ([GH#4](https://github.com/a-j-wood/pv/issues/4)) Option for process title (Martin Sarsale) as "`pv - name:FooProcess -xyz - transferred: 1.3GB - 500KB/s - running: 10:15:30s`"
- * ([GH#6](https://github.com/a-j-wood/pv/issues/6)) Look at effect of *O_SYNC* or `fsync` on performance; update counters during buffer flush
- * ([GH#9](https://github.com/a-j-wood/pv/issues/9)) Option to switch rate to per minute if really slow
- * ([GH#10](https://github.com/a-j-wood/pv/issues/10)) Add watchfd tests
- * ([GH#11](https://github.com/a-j-wood/pv/issues/11)) Option "`--progress-from FILE`", read last number and use it as bytes read (Jacek Wielemborek)
- * ([GH#12](https://github.com/a-j-wood/pv/issues/12)) Allow multiple "`-d`" options (Linus Heckemann for multiple PID:FD; Jacek Wielemborek)
- * ([GH#15](https://github.com/a-j-wood/pv/issues/15)) Use Unicode for more granular progress bar (Alexander Petrossian)
- * ([GH#17](https://github.com/a-j-wood/pv/issues/17)) Allow "`-r`" with "`-l`" and "`-n`" to output lines/sec (Roland Kletzing)
- * ([GH#22](https://github.com/a-j-wood/pv/issues/22)) Options to skip input and seek on output (Jason A. Pfeil, Feb 2022)
- * ([GH#25](https://github.com/a-j-wood/pv/issues/25)) Normalise progress to 100% on overrun (Andrej Gantvorg)
- * ([GH#35](https://github.com/a-j-wood/pv/issues/35)) Allow decimal values for "`-s`", "`-L`", "`-B`" (Thomas Watson - Aug 2020)
- * ([GH#36](https://github.com/a-j-wood/pv/issues/36)) Ignore *SIGWINCH* (window size change) if "`-w`" / "`-H`" provided
- * ([GH#37](https://github.com/a-j-wood/pv/issues/37)) Allow "`-E`" to take a block size argument so errors cause a skip to the next block (Anthony DeRobertis - Oct 2016)
- * ([GH#38](https://github.com/a-j-wood/pv/issues/38)) Reset ETA on *SIGUSR1* (Jacek Wielemborek - Jan 2019)
- * ([GH#39](https://github.com/a-j-wood/pv/issues/39)) Use `posix_fadvise()` like `cat`(1) does (Jacek Wielemborek - Oct 2015)
- * ([GH#40](https://github.com/a-j-wood/pv/issues/40)) Permit "`-c`" with "`-d PID:FD`", reject "`-N`" with "`-d PID`" (Norman Rasmussen - Nov 2020)
- * ([GH#41](https://github.com/a-j-wood/pv/issues/41)) Improve how backwards-moving reads are shown in "`--watchfd`" (Ryan Cooley - Dec 2017)
- * ([GH#42](https://github.com/a-j-wood/pv/issues/42)) Option to discard stdin so nothing is written to stdout (André Stapf - Apr 2017)
- * ([GH#43](https://github.com/a-j-wood/pv/issues/43)) Differentiate between "`--eta`" and "`--fineta`" in display (André Stapf - Apr 2017)
- * ([GH#45](https://github.com/a-j-wood/pv/issues/45)) Option "`--sparse`" (with block size option) to write sparse output (Andriy Galetski - Apr 2019)
- * ([GH#46](https://github.com/a-j-wood/pv/issues/46)) Option to show speed gauge (% max speed) if progress not known (Ryan Cooley - Jun 2019)
- * ([GH#47](https://github.com/a-j-wood/pv/issues/47)) Analyse splice and buffer usage to improve performance
- * ([GH#48](https://github.com/a-j-wood/pv/issues/48)) Option to show multiple files with individual sizes and a cumulative total (Zach Riggle - Jul 2021)
- * ([GH#49](https://github.com/a-j-wood/pv/issues/49)) Option to provide stats for avg/min/max/stddev throughput (Venky.N.Iyer)
- * ([GH#50](https://github.com/a-j-wood/pv/issues/50)) Allow pv to report on a whole pipeline at once (Will Entriken - Feb 2011)
- * ([GH#54](https://github.com/a-j-wood/pv/issues/54)) Run command every n percent ([haarp](https://github.com/haarp))
- * ([GH#56](https://github.com/a-j-wood/pv/issues/56)) Support for backgrounding pv, and allowing it to be monitored separately ([jimbobmcgee](https://github.com/jimbobmcgee))
- * ([GH#67](https://github.com/a-j-wood/pv/issues/67)) Wrap another process to monitor its stdin & stdout ([Alex Mason](https://github.com/axman6))
-
-Any assistance would be appreciated.

doc/VERSION

@@ -1 +0,0 @@
-1.7.17

doc/lsm.in

@@ -1,19 +0,0 @@
-Begin3
-Title:		@PACKAGE@
-Version:	@VERSION@
-Entered-date:	27JUL23
-Description:	A tool for monitoring the progress of data through a
-		pipeline.  It can be inserted into any normal pipeline
-		between two processes to give a visual indication of how
-		quickly data is passing through, how long it has taken, how
-		near to completion it is, and an estimate of how long it
-		will be until completion.
-Keywords:	progress bar, console, pipe, transfer rate
-Author:		Andrew Wood <andrew.wood@ivarch.com>
-Maintained-by:	Andrew Wood <andrew.wood@ivarch.com>
-Primary-site:	http://www.ivarch.com/programs/@PACKAGE@.shtml
-Alternate-site:	
-Original-site:
-Platforms:	
-Copying-policy:	Artistic 2.0
-End

doc/release-checklist

@@ -1,19 +0,0 @@
-Before releasing a new version, go through this checklist:
-
-  - check for patches from https://tracker.debian.org/pkg/pv
-  - bump doc/VERSION
-  - bump doc/lsm.in
-  - check doc/NEWS.md is up to date
-  - check manual is up to date
-  - make indent; make indent indentclean
-  - make update-po
-  - make test
-  - commit to repository
-  - wipe build directory, re-run generate.sh and configure
-  - make release
-  - make manhtml | tidy -asxhtml | sed -e '1,/<body>/d' -e '/<\/body>/,$d'
-  - update HTML for todo and news
-  - copy and sign tar.gz to HTML directory (sig as both .asc and .txt)
-  - submit new release to Sourceforge
-  - upload HTML
-  - check validator results for project page and manual

docs/ACKNOWLEDGEMENTS.md

@@ -51,7 +51,7 @@ is acknowledged and greatly appreciated:
  * Kim Krecht - suggested buffer fill status and last bytes output display options
  * Cristian Ciupitu <http://ciupicri.github.io>, Josh Stone - pointed out file descriptor leak with helpful suggestions (Josh Stone initially noticed the missing close)
  * Jan Seda - found issue with `splice()` and *SPLICE_F_NONBLOCK* causing slowdown
- * André Stapf - pointed out formatting problem e.g. 13GB -> 13.1GB which should be shown 13.0GB -> 13.1GB; highlighted on-startup row swapping in "`-c`"
+ * André Stapf - pointed out formatting problem e.g. 13GB -> 13.1GB which should be shown 13.0GB -> 13.1GB; highlighted on-startup row swapping in "`-c`", and suggested "`--discard`"
  * Damon Harper <http://www.usrbin.ca/> - suggested "`-D`" / "`--delay-start`" option
  * Ganaël Laplanche <http://www.martymac.org> - provided patch for `lstat64()` on systems that do not support it
  * Peter Korsgaard <http://www.buildroot.net/> - provided similar patch for `lstat64()`, specifically for uClibc support; provided AIX cross-compilation patch to fix bug in "`-lc128`" check
@@ -82,5 +82,14 @@ is acknowledged and greatly appreciated:
  * [Dave Beckett](https://github.com/dajobe) - added "`@filename`" syntax to "`--size`", and corrected an autoconf problem with stat64 on OS X
  * [Volodymyr Bychkovyak](https://github.com/vbychkoviak) - provided fix for rate limit behaviour with bursty traffic
  * [Nick Black](https://nick-black.com) - added "`--bits`" option
+ * [Andrew Schulman](https://github.com/andrew-schulman) - provided reproducible example of terminal size detection issue in 1.7.17/1.7.18
+ * [fuschia74](https://github.com/fuchsia74) - provided "`--enable-static`"  patch for "`configure`"
+ * [Wilhelm von Thiele](https://github.com/TurtleWilly) - assisted with OS X cleanups ([#73](https://codeberg.org/a-j-wood/pv/issues/73), [#74](https://codeberg.org/a-j-wood/pv/issues/74))
+ * Matějů Miroslav, Ing. - suggested fix for ETA and elapsed time faults when suspending and resuming a machine ([#13](https://codeberg.org/a-j-wood/pv/issues/13))
+ * Anthony DeRobertis - suggested the "`--error-skip-block`" option ([#37](https://codeberg.org/a-j-wood/pv/issues/37))
+ * Benoit Pierre - provided patches for compilation without IPC support, without HAVE_STRUCT_STAT_ST_BLKSIZE, and on MacOS
+ * [gustav-b](https://codeberg.org/gustav-b) - suggested percentage formatting correction ([#80](https://codeberg.org/a-j-wood/pv/issues/80))
+ * [Thomas Bertels](https://codeberg.org/tbertels) - updated French translations ([#83](https://codeberg.org/a-j-wood/pv/pulls/83))
+ * [kevinruddy](https://codeberg.org/kevinruddy) - added decimal units option ([#85](https://codeberg.org/a-j-wood/pv/pulls/85))
 
 ---

docs/COPYING

@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+  The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works.  By contrast,
+the GNU General Public License is intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users.  We, the Free Software Foundation, use the
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+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.

docs/DEVELOPERS.md

@@ -0,0 +1,136 @@
+# Notes for developers and translators
+
+The following "`configure`" options will be of interest to developers and
+translators:
+
+ * `--enable-debugging` - build in debugging support
+ * `--enable-profiling` - build in support for profiling
+
+These "`make`" targets are available:
+
+ * `make analyse` - run _splint_ and _flawfinder_ on all C source files
+
+
+## Debugging and profiling support
+
+When "`./configure --enable-debugging`" is used, the "`pv`" produced by
+"`make`" will support an extra option, "`--debug FILE`", which will cause
+debugging output to be written to *FILE*.  This is not recommended for
+production builds due to the extra processing it introduces, and the
+potential size of the output.
+
+Within the code, "`debug()`" is used in a similar way to "`printf()`".  It
+will automatically include the calling function, source file, and line
+number, so they don't need to be included in the parameters.  When debugging
+support is not enabled, it evaluates to a null statement.
+
+This does mean that if you call "`debug()`", make sure it has no side
+effects, as they won't be present in builds without debugging support.
+
+Builds produced after "`./configure --enable-profiling`" will write profile
+data when run, to be used with _gprof_.  See "`man gprof`" for details. 
+Please note that the memory safety checks will fail with profiling enabled.
+
+
+## Source code analysis
+
+Running "`make analyse`" runs _splint_ and _flawfinder_ on all C sources,
+writing the output of both programs to files named "`*.e`" for each "`*.c`".
+
+There are no dependency rules set up for these "`.e`" files, so if a header
+file is altered, manually remove the relevant "`.e`" files, or update the
+timestamp of the relevant "`.c`" files, before running "`make analyse`"
+again.
+
+The goal is for all C source files to generate zero warnings from either
+tool.
+
+Wherever warnings are disabled by annotations to the source, there should be
+associated commentary nearby explaining the rationale behind it, and any
+assumptions made.  This is so that there can be some assurance that the
+issue highlighted by the analyser has been considered properly, as well as
+documenting anything that might need further work if the surrounding code is
+altered in future.
+
+
+## Translation notes
+
+The message catalogues used to translate program messages into other
+languages are in the "`po/`" directory, named "`xx.po`", where "`xx`"
+is the ISO 639-1 2-letter language code, such as "`fr`" for French.
+
+Each of these files contains lines like this:
+
+    #: src/pv/cursor.c:85
+    msgid "failed to get terminal name"
+    msgstr "erro ao ler o nome do terminal"
+
+The comment line, starting "`#`", shows the source filename and line number
+at which this message can be found.  The "`msgid`" is the original message
+in the program, in English.  The "`msgstr`" is the translated text.
+
+It is the "`msgstr`" lines which need to be updated by translators.
+
+Message catalogue files should all be encoded as UTF-8.
+
+_FIXME: The test below doesn't work on Debian with only en_GB installed, and
+also it looks like the compiled-in LOCALEDIR is overriding LOCPATH._
+
+After making a change to a "`.po`" file, test it by compiling it and installing
+to a temporary location, like this:
+
+    make install DESTDIR=/tmp/yourtest
+    localedef -f UTF-8 -i de_DE /tmp/yourtest/usr/local/share/locale/de_DE.UTF-8
+    LOCPATH=/tmp/yourtest/usr/local/share/locale \
+    LC_ALL=de_DE.UTF-8 ./pv --help
+
+Replace "`--help`" with whatever is appropriate for your test.  In this
+example, the language being tested is "`de`" (German), on a system which is
+running with UTF-8 support.
+
+To add a new language, create the new message catalogue file under "`po/`"
+by copying "`po/pv.pot`" to "`po/xx.po`", where "`xx`" is the language code,
+and adjusting it.  The "`.pot`" file is generated automatically by "`make`".
+
+Next, add the language code to "`po/LINGUAS`" - this is a list of the
+2-letter codes of the supported languages.
+
+Finally, run "`./config.status`" and "`make -C po update-po`".
+
+When the source code is updated, running "`make -C po update-po`" will
+update the "`pv.pot`" file so that it lists where all the messages are in
+the source.  It will also use _msgmerge_ to update all of the "`.po`" files
+from the updated "`pv.pot`" file.  After doing this, look for missing
+translations (empty "`msgstr`" lines) or translations marked as "fuzzy", as
+these will need to be corrected by translators.
+
+
+## Release checklist
+
+The package maintainer should run through these steps for a new release:
+
+ * Check for patches and bug reports at https://tracker.debian.org/pkg/pv
+ * Run "`make indent; make indent indentclean check`"
+ * Run "`make -C po update-po`"
+ * Run "`make analyse`" and see whether remaining warnings can be addressed
+ * Version bump and documentation checks:
+   * Update the version in `configure.ac` and `docs/NEWS.md`
+   * Check that `docs/NEWS.md` is up to date
+   * Check that `docs/TODO.md` is up to date
+   * Check that the manual `docs/pv.1` is up to date
+   * Run "`make docs/pv.1.md`" and, if using VPATH, copy the result to the source directory
+ * Ensure everything has been committed to the repository
+ * Run "`autoreconf`" in the source directory
+ * Consistency and build checks:
+   * Wipe the build directory, and run "`configure`" there
+   * Run "`make distcheck`"
+   * Run "`./configure && make check`" on all test systems including Cygwin, using the `tar.gz` that was just created
+ * Run "`make release MAINTAINER=<signing-user>`"
+ * Update the project web site:
+   * Copy the release `.tar.gz`, `.txt`, and `.asc` files to the web site
+   * Use "`pandoc --from markdown --to html`" to convert the TODO, news, and manual to HTML
+   * Update the TODO, news, and manual on the web site
+   * Update the version numbers on the web site
+   * Update the package index on the web site
+ * Create a new release in the repository, and apply the associated tag
+

docs/NEWS.md

@@ -1,6 +1,81 @@
-1.7.17 - 27 July 2023
- * feature: new "`--sync`" option to flush cache to disk after every write (related to [GH#6](https://github.com/a-j-wood/pv/issues/6), to improve accuracy when writing to slow disks)
- * feature: new "`--direct-io`" option to bypass cache - implements [GH#29 "Option to enable *O_DIRECT*"](https://github.com/a-j-wood/pv/issues/29) - requested by Romain Kang, Jacek Wielemborek
+### 1.8.9 - 21 April 2024
+
+ * feature: new "`--si`" option to display and interpret size suffixes in multiples of 1000 rather than 1024 (pull request [#85](https://codeberg.org/a-j-wood/pv/pulls/85)) supplied by [kevinruddy](https://codeberg.org/kevinruddy)
+ * fix: continue producing progress output when the output is blocking writes ([#34](https://codeberg.org/a-j-wood/pv/issues/34), [#86](https://codeberg.org/a-j-wood/pv/issues/86), [#87](https://codeberg.org/a-j-wood/pv/issues/87))
+ * fix: honour the _TMPDIR_ / _TMP_ environment variables again, rather than hard-coding "`/tmp`", when using a terminal lock file (originally removed in 1.8.0) ([#88](https://codeberg.org/a-j-wood/pv/issues/88))
+ * i18n: corrections and missing strings added to French translations (pull request [#83](https://codeberg.org/a-j-wood/pv/pulls/83)) supplied by [Thomas Bertels](https://codeberg.org/tbertels)
+
+### 1.8.5 - 19 November 2023
+
+ * fix: corrected percentage formatting so it doesn't jump from 2 to 3 characters wide at 100% ([#80](https://codeberg.org/a-j-wood/pv/issues/80))
+ * fix: replaced "`--remote`" mechanism, using a temporary file instead of SysV IPC, so it can work reliably even when there are multiple PV instances
+ * fix: corrected compilation failure when without IPC support
+ * security: addressed all issues highlighted by the software auditing tools "`splint`" and "`flawfinder`" (see "`make analyse`") ([#77](https://codeberg.org/a-j-wood/pv/issues/77))
+ * cleanup: compilation warnings fixed on non-IPC and MacOS systems
+
+### 1.8.0 - 24 September 2023
+
+#### Features
+
+ * feature: new "`--discard`" option to discard input as if writing to */dev/null* ([#42](https://codeberg.org/a-j-wood/pv/issues/42))
+ * feature: new "`--error-skip-block`" option to make "`--skip-errors`" skip whole blocks ([#37](https://codeberg.org/a-j-wood/pv/issues/37))
+ * feature: use `posix_fadvise()` like `cat`(1) does, to improve efficiency ([#39](https://codeberg.org/a-j-wood/pv/issues/39))
+ * feature: new "`--enable-static`" option to "`configure`" for static builds ([#75](https://codeberg.org/a-j-wood/pv/pull/75))
+
+#### Security
+
+ * security: with "`--pidfile`", write to a temporary file and rename it into place, to improve security
+ * security: keep self-contained copies of name and format string in PV internal state for memory safety
+ * security: ignore _TMP_ / _TMPDIR_ environment variables when using a terminal lock file
+
+#### Fixes
+
+ * fix: only report errors about missing files when starting to transfer from them, not while calculating size, and behave more like `cat`(1) by skipping them and moving on
+ * fix: auto-calculate total line count with "`--line-mode`" when all inputs are regular files
+ * fix: use `clock_gettime()` in ETA calculation to cope with machine suspend/resume ([#13](https://codeberg.org/a-j-wood/pv/issues/13))
+ * fix: if "`--width`" or "`--height`" were provided, do not change them when the window size changes ([#36](https://codeberg.org/a-j-wood/pv/issues/36))
+ * fix: when a file descriptor position in "`--watchfd`" moves backwards, show the rate using the correct prefix ([#41](https://codeberg.org/a-j-wood/pv/issues/41))
+ * fix: rewrite terminal state save/restore so state is not intermittently garbled on exit when using "`--cursor`" ([#20](https://codeberg.org/a-j-wood/pv/issues/20)), ([#24](https://codeberg.org/a-j-wood/pv/issues/24))
+
+#### Cleanups
+
+ * cleanup: addressed many potential issues highlighted by the software auditing tools "`splint`" and "`flawfinder`" (see new target "`make analyse`")
+ * cleanup: switched the build system to GNU Automake
+ * cleanup: replaced the test harness with the one native to GNU Automake
+ * cleanup: added a test for terminal width detection to "`make check`"
+ * cleanup: added a test to "`make check`" to ensure that "`make install`" installs everything expected
+ * cleanup: replaced *AC_HEADER_TIOCGWINSZ* with *AC_CHECK_HEADERS(sys/ioctl.h)* for better MacOS compatibility ([#74](https://codeberg.org/a-j-wood/pv/issues/74))
+ * cleanup: with "`--sync`", call `fsync()` instead of `fdatasync()` on incapable systems ([#73](https://codeberg.org/a-j-wood/pv/issues/73))
+ * cleanup: the manual is now a static file instead of needing to be built with "`configure`"
+
+#### Dropped items
+
+ * dropped: dropped support for "`--enable-static-nls`"
+ * dropped: removed the Linux Software Map file, as the LSM project appears to be long dead
+ * dropped: will no longer publish to SourceForge as it has a chequered history and is unnecessary
+ * dropped: removed project from GitHub and moved to Codeberg - see "[Give Up GitHub](https://giveupgithub.org/)"
+
+#### Other items
+
+ * licensing change from Artistic 2.0 to GPLv3+
+
+### 1.7.24 - 30 July 2023
+
+ * fix: correct terminal size detection, broken in 1.7.17 by the configuration script rewrite ([#72](https://codeberg.org/a-j-wood/pv/issues/72))
+ * security: removed *DEBUG* environment variable in debug mode, added "`--debug`" instead
+ * cleanup: added "`make analyse`" to run "`splint`" and "`flawfinder`" on all source files
+ * cleanup: corrected detection of boolean capability
+ * cleanup: word wrapping of "`--help`" output is now multi-byte locale aware
+ * cleanup: adjusted "`indent`" rules to line length of 120 and reformatted code
+
+### 1.7.18 - 28 July 2023
+
+ * fix: language file installation had been broken by the configuration script rewrite
+
+### 1.7.17 - 27 July 2023
+
+ * feature: new "`--sync`" option to flush cache to disk after every write (related to [#6](https://codeberg.org/a-j-wood/pv/issues/6), to improve accuracy when writing to slow disks)
+ * feature: new "`--direct-io`" option to bypass cache - implements [#29 "Option to enable *O_DIRECT*"](https://codeberg.org/a-j-wood/pv/issues/29) - requested by Romain Kang, Jacek Wielemborek
  * fix: correct byte prefix size to 2 spaces in rate display, so progress display size remains constant at low transfer rates
  * cleanup: rewrote `configure.in` as per suggestions in newer "`autoconf`" manuals
  * cleanup: replaced `header.in` with one generated by "`autoheader`", moving custom logic to a separate header file "`config-aux.h`"
@@ -17,20 +92,21 @@
  * cleanup: tidy up and fix compilation warning in "`--watchfd`" code
  * cleanup: rewrote all local shell scripts to pass analysis by [ShellCheck](https://www.shellcheck.net)
 
-1.7.0 - 17 July 2023
+### 1.7.0 - 17 July 2023
+
  * dropped: support for Red Hat Enterprise Linux and its derivatives has been dropped; removed the RPM spec file, and will no longer build binaries
- * feature: the "`--size`" option now accepts "`@filename`" to use the size of another file (pull request [#57](https://github.com/a-j-wood/pv/pull/57) supplied by [Dave Beckett](https://github.com/dajobe))
- * feature: the "`--watchfd`" option is now available on OS X (pull request [#60](https://github.com/a-j-wood/pv/pull/60) supplied by [christoph-zededa](https://github.com/christoph-zededa))
- * feature: new "`--bits`" option to show bit count instead of byte count (adapted from pull request [#63](https://github.com/a-j-wood/pv/pull/63) supplied by [Nick Black](https://nick-black.com))
- * feature: new "`--average-rate-window`" option, to set the window over which the average rate is calculated, also used for ETA (modified from pull request [#65](https://github.com/a-j-wood/pv/pull/65) supplied by [lemonsqueeze](https://github.com/lemonsqueeze))
- * feature: the "`--watchfd`" option will now show relative filenames, if they are under the current directory (pull request [#66](https://github.com/a-j-wood/pv/pull/66) supplied by [ikasty](https://github.com/ikasty))
- * fix: correction to `pv_in_foreground()` to behave as its comment block says it should, when not on a terminal - corrects [GH#19 "No output in Arch Linux initcpio after 1.6.6"](https://github.com/a-j-wood/pv/issues/19), [GH#31 "No output written from inside zsh <() construct"](https://github.com/a-j-wood/pv/issues/31), [GH#55 "pv Stopped Working in the Background"](https://github.com/a-j-wood/pv/issues/55) (pull request [#64](https://github.com/a-j-wood/pv/pull/64) supplied by [Michael Weiß](https://github.com/quitschbo))
- * fix: workaround for OS X 11 behaviour in configure script regarding stat64 at compile time (pull request [#57](https://github.com/a-j-wood/pv/pull/57) supplied by [Dave Beckett](https://github.com/dajobe))
- * fix: workaround for macOS equivalence of stat to stat64 - patches from [Filippo Valsorda](https://github.com/FiloSottile) and [Demitri Muna](https://github.com/demitri), correcting [GH#33 "Fix compilation problems due to `stat64()` on Apple Silicon"](https://github.com/a-j-wood/pv/issues/33)
- * fix: add burst rate limit to transfer, so rate limits are not broken by bursty traffic (pull request [#62](https://github.com/a-j-wood/pv/pull/62) supplied by [Volodymyr Bychkovyak](https://github.com/vbychkoviak))
- * fix: corrected "`--force`" option so it will still output progress when not in the same process group as the owner of the terminal - corrects [GH#23 "No output with "`-f`" when run in background after 1.6.6"](https://github.com/a-j-wood/pv/issues/23) and helps to correct [GH#31 "No output written from inside zsh <() construct"](https://github.com/a-j-wood/pv/issues/31)
- * fix: corrected elapsed time display to show as D:HH:MM:SS after 1 day, like the ETA does - corrects [GH#16 "Show days in same format in ETA as in elapsed time"](https://github.com/a-j-wood/pv/issues/16)
- * fix: corrected bug where percentages went down after 100% when in "`--numeric`" mode with a "`--size`" that was too small - corrects [GH#26 "Correct "`-n`" behaviour when going past 100% of "`-s`" size"](https://github.com/a-j-wood/pv/issues/26)
+ * feature: the "`--size`" option now accepts "`@filename`" to use the size of another file (pull request [#57](https://codeberg.org/a-j-wood/pv/pull/57) supplied by [Dave Beckett](https://github.com/dajobe))
+ * feature: the "`--watchfd`" option is now available on OS X (pull request [#60](https://codeberg.org/a-j-wood/pv/pull/60) supplied by [christoph-zededa](https://github.com/christoph-zededa))
+ * feature: new "`--bits`" option to show bit count instead of byte count (adapted from pull request [#63](https://codeberg.org/a-j-wood/pv/pull/63) supplied by [Nick Black](https://nick-black.com))
+ * feature: new "`--average-rate-window`" option, to set the window over which the average rate is calculated, also used for ETA (modified from pull request [#65](https://codeberg.org/a-j-wood/pv/pull/65) supplied by [lemonsqueeze](https://github.com/lemonsqueeze))
+ * feature: the "`--watchfd`" option will now show relative filenames, if they are under the current directory (pull request [#66](https://codeberg.org/a-j-wood/pv/pull/66) supplied by [ikasty](https://github.com/ikasty))
+ * fix: correction to `pv_in_foreground()` to behave as its comment block says it should, when not on a terminal - corrects [#19 "No output in Arch Linux initcpio after 1.6.6"](https://codeberg.org/a-j-wood/pv/issues/19), [#31 "No output written from inside zsh <() construct"](https://codeberg.org/a-j-wood/pv/issues/31), [#55 "pv Stopped Working in the Background"](https://codeberg.org/a-j-wood/pv/issues/55) (pull request [#64](https://codeberg.org/a-j-wood/pv/pull/64) supplied by [Michael Weiß](https://github.com/quitschbo))
+ * fix: workaround for OS X 11 behaviour in configure script regarding stat64 at compile time (pull request [#57](https://codeberg.org/a-j-wood/pv/pull/57) supplied by [Dave Beckett](https://github.com/dajobe))
+ * fix: workaround for macOS equivalence of stat to stat64 - patches from [Filippo Valsorda](https://github.com/FiloSottile) and [Demitri Muna](https://github.com/demitri), correcting [#33 "Fix compilation problems due to `stat64()` on Apple Silicon"](https://codeberg.org/a-j-wood/pv/issues/33)
+ * fix: add burst rate limit to transfer, so rate limits are not broken by bursty traffic (pull request [#62](https://codeberg.org/a-j-wood/pv/pull/62) supplied by [Volodymyr Bychkovyak](https://github.com/vbychkoviak))
+ * fix: corrected "`--force`" option so it will still output progress when not in the same process group as the owner of the terminal - corrects [#23 "No output with "`-f`" when run in background after 1.6.6"](https://codeberg.org/a-j-wood/pv/issues/23) and helps to correct [#31 "No output written from inside zsh <() construct"](https://codeberg.org/a-j-wood/pv/issues/31)
+ * fix: corrected elapsed time display to show as D:HH:MM:SS after 1 day, like the ETA does - corrects [#16 "Show days in same format in ETA as in elapsed time"](https://codeberg.org/a-j-wood/pv/issues/16)
+ * fix: corrected bug where percentages went down after 100% when in "`--numeric`" mode with a "`--size`" that was too small - corrects [#26 "Correct "`-n`" behaviour when going past 100% of "`-s`" size"](https://codeberg.org/a-j-wood/pv/issues/26)
  * i18n: recoded Polish translation file to UTF-8
  * i18n: removed inaccurate fuzzy translation matches
  * docs: moved all open issues into GitHub and updated the TODO list
@@ -39,10 +115,12 @@
  * docs: moved TODO to TODO.md and altered it to Markdown format
  * docs: moved NEWS to NEWS.md, converted it to UTF-8, and altered it to Markdown format
 
-1.6.20 - 12 September 2021
+### 1.6.20 - 12 September 2021
+
  * fix: add missing `stddef.h` include to `number.c` (Sam James)
 
-1.6.19 - 5 September 2021
+### 1.6.19 - 5 September 2021
+
  * fix: starting pv in the background no longer immediately stops unless the transfer is to/from the terminal (Andriy Gapon, Jonathan Elchison)
  * fix: using "`-B`", "`-A`", or "`-T`" now switches on "`-C`" implicitly (Johannes Gerer, André Stapf)
  * fix: AIX build fixes (Peter Korsgaard)
@@ -54,7 +132,8 @@
  * docs: correct shell in `autoconf/scripts/index.sh` (Juan Picca)
  * cleanup: various compiler warnings cleaned up
 
- Full changelog is below:
+Full changelog is below:
+
  * (r181) added common switches section to manual (Jacek Wielemborek)
  * (r184) use placeholder instead of /dev/sda in the manual (Pranav Peshwe)
  * (r185) replace ash with sh in autoconf/scripts/index.sh (Juan Picca)
@@ -69,7 +148,8 @@
  * (r200,205) fixed bug where "`pv /dev/zero >/dev/null &`" stopped immediately (Jonathan Elchison, Andriy Gapon)
  * (r203,205) marked unused arguments with GCC unused attribute, started using boolean data type for flags, corrected more compiler warnings
 
-1.6.6 - 30 June 2017
+### 1.6.6 - 30 June 2017
+
  * (r161) use `%llu` instead of `%Lu` for better compatibility (Eric A. Borisch)
  * (r162) (#1532) fix target buffer size ("`-B`") being ignored (AndCycle, Ilya Basin, Antoine Beaupré)
  * (r164) cap read/write sizes, and check elapsed time during read/write cycles, to avoid display hangs with large buffers or slow media; also remove `select()` call from repeated_write function as it slows the transfer down and the wrapping `alarm()` means it is unnecessary
@@ -77,7 +157,8 @@
  * (r171) cleanup: units corrections in man page, of the form kb -> KiB
  * (r175) report error in "`-d`" if process fd directory is unreadable, or if process disappears before we start the main loop (Jacek Wielemborek)
 
-1.6.0 - 15 March 2015
+### 1.6.0 - 15 March 2015
+
  * fix lstat64 support when unavailable - separate patches supplied by Ganael Laplanche and Peter Korsgaard
  * (#1506) new option "`-D`" / "`--delay-start`" to only show bar after N seconds (Damon Harper)
  * new option "`--fineta`" / "`-I`" to show ETA as time of day rather than time remaining - patch supplied by Erkki Seppälä (r147)
@@ -88,21 +169,25 @@
  * clean up displayed lines when using "`--watchfd PID`", when PID exits
  * output errors on a new line to avoid overwriting transfer bar
 
-1.5.7 - 26 August 2014
+### 1.5.7 - 26 August 2014
+
  * show KiB instead of incorrect kiB (Debian bug #706175)
  * (#1284) do not gzip man page, for non-Linux OSes (Bob Friesenhahn)
  * work around "awk" bug in `tests/016-numeric-timer` in decimal "," locales
  * fix "`make rpm`" and "`make srpm`", extend "`make release`" to sign releases
 
-1.5.3 - 4 May 2014
+### 1.5.3 - 4 May 2014
+
  * remove *SPLICE_F_NONBLOCK* to fix problem with slow `splice()` (Jan Seda)
 
-1.5.2 - 10 February 2014
+### 1.5.2 - 10 February 2014
+
  * allow "`--watchfd`" to look at block devices
  * let "`--watchfd PID:FD`" work with "`--size N`"
  * moved contributors out of the manual as the list was too long (NB everyone is still listed in the README and always will be)
 
-1.5.1 - 23 January 2014
+### 1.5.1 - 23 January 2014
+
  * new option "`--watchfd`" - suggested by Jacek Wielemborek and "fdwatch"
  * use non-block flag with `splice()`
  * new display option "`--buffer-percent`", suggested by Kim Krecht
@@ -111,7 +196,8 @@
  * fix for minor bug which dropped display elements after one empty one
  * fix for single fd leak on exit (Cristian Ciupitu)
 
-1.4.12 - 5 August 2013
+### 1.4.12 - 5 August 2013
+
  * new option "`--null`" - patch supplied by Zing Shishak
  * AIX build fix (add "`-lc128`") - with help from Pawel Piatek
  * AIX "`-c`" fixes - with help from Pawel Piatek
@@ -119,19 +205,23 @@
  * test scripts fix for older distributions - patch from Bryan Dongray
  * fix for `splice()` not using stdin - patch from Zev Weiss
 
-1.4.6 - 22 January 2013
+### 1.4.6 - 22 January 2013
+
  * added patch from Pawel Piatek to omit *O_NOFOLLOW* in AIX
 
-1.4.5 - 10 January 2013
+### 1.4.5 - 10 January 2013
+
  * updated manual page to show known problem with "`-R`" on Cygwin
 
-1.4.4 - 11 December 2012
+### 1.4.4 - 11 December 2012
+
  * added debugging, see "`pv -h`" when `configure` is run with "`--enable-debugging`"
  * rewrote cursor positioning code used when IPC is unavailable (Cygwin)
  * fixed cursor positioning cursor read answerback problem (Cygwin/Solaris)
  * fixed bug causing crash when progress displayed with too-small terminal
 
-1.4.0 - 6 December 2012
+### 1.4.0 - 6 December 2012
+
  * new option "`--skip-errors`" commissioned by Jim Salter
  * if stdout is a block device, and we don't know the total size, use the size of that block device as the total (Peter Samuelson)
  * new option "`--stop-at-size`" to stop after "`--size`" bytes
@@ -139,28 +229,33 @@
  * fix use-after-free bug in remote PID cleanup code
  * refactored large chunks of code to make it more readable and to replace most static variables with a state structure
 
-1.3.9 - 5 November 2012
+### 1.3.9 - 5 November 2012
+
  * allow "`--format`" parameters to be sent with "`--remote`"
  * configure option "`--disable-ipc`"
  * added tests for "`--numeric`" with "`--timer`" and "`--bytes`"
  * added tests for "`--remote`"
 
-1.3.8 - 29 October 2012
+### 1.3.8 - 29 October 2012
+
  * new "`--pidfile`" option to save process ID to a file
  * integrated patch for "`--numeric`" with "`--timer`" and "`--bytes`" (Sami Liedes)
  * removed signalling from "`--remote`" to prevent accidental process kills
  * new "`--format`" option (originally Vladimir Pal / Vladimir Ermakov)
 
-1.3.4 - 27 June 2012
+### 1.3.4 - 27 June 2012
+
  * new "`--disable-splice`" configure script option
  * fixed line mode size count with multiple files (Moritz Barsnick)
  * fixes for AIX core dumps (Pawel Piatek)
 
-1.3.1 - 9 June 2012
+### 1.3.1 - 9 June 2012
+
  * do not use `splice()` if the write buffer is not empty (Thomas Rachel)
  * added test 15 (pipe transfers), and new test script
 
-1.3.0 - 5 June 2012
+### 1.3.0 - 5 June 2012
+
  * added Tiger build patch from Olle Jonsson
  * fix 1024-boundary display garble (Debian bug #586763)
  * use `splice`(2) where available (Debian bug #601683)
@@ -171,7 +266,8 @@
  * speed up PV line mode (patch: Guillaume Marcais)
  * remove `LD=ld` from `vars.mk` to fix cross-compilation (paintitgray/PV#1291)
 
-1.2.0 - 14 December 2010
+### 1.2.0 - 14 December 2010
+
  * integrated improved SI prefixes and "`--average-rate`" (Henry Gebhardt)
  * return nonzero if exiting due to *SIGTERM* (Martin Baum)
  * patch from Phil Rutschman to restore terminal properly on exit
@@ -184,13 +280,15 @@
  * remove *DESTDIR* `/` suffix (Sam Nelson, Daniel Pape)
  * fixed potential NULL deref in transfer (Elias Pipping / LLVM/Clang)
 
-1.1.4 - 6 March 2008
+### 1.1.4 - 6 March 2008
+
  * patch from Elias Pipping correcting compilation failure on Darwin 9
  * patch from Patrick Collison correcting similar problems on OS X
  * trap *SIGINT* / *SIGHUP* / *SIGTERM* so we clean up IPCs on exit (Laszlo Ersek)
  * abort if numeric option, eg "`-L`", has non-numeric value (Boris Lohner)
 
-1.1.0 - 30 August 2007
+### 1.1.0 - 30 August 2007
+
  * new option "`--remote`" ("`-R`") to control an already-running process
  * new option "`--line-mode`" ("`-l`") to count lines instead of bytes
  * fix for "`-L`" to be less resource intensive
@@ -199,82 +297,101 @@
  * fixed "`make uninstall`"
  * removed "`/debian`" directory at request of new Debian maintainer
 
-1.0.1 - 4 August 2007
+### 1.0.1 - 4 August 2007
+
  * licensing change from Artistic to Artistic 2.0
  * removed the "`-l`" / "`--license`" option
 
-1.0.0 - 2 August 2007
+### 1.0.0 - 2 August 2007
+
  * act more like "`cat`" - just skip unreadable files, don't abort
  * removed text version of manual page, and obsolete Info file generation
  * code cleanup and separation of PV internals from CLI front-end
 
-0.9.9 - 5 February 2007
+### 0.9.9 - 5 February 2007
+
  * new option "`--buffer-size`" ("`-B`") suggested by Mark Tomich
  * build fix: HP/UX largefile compile fix from Timo Savinen
  * maintain better buffer filling during transfers
  * workaround: "`pv /dev/zero | dd bs=1M count=1k`" bug (reported by Gert Menke)
  * dropped support for the Texinfo manual
 
-0.9.6 - 27 February 2006
+### 0.9.6 - 27 February 2006
+
  * bugfix: `key_t` incompatibility with Cygwin
  * bugfix: interval ("`-i`") parameter parses numbers after decimal point
  * build fix: use static NLS if `msgfmt` is unavailable
  * on the final update, blank out the now-zero ETA
 
-0.9.2 - 1 September 2005
+### 0.9.2 - 1 September 2005
+
  * Daniel Roethlisberger patch: use lockfiles if terminal locking fails
 
-0.9.1 - 16 June 2005
+### 0.9.1 - 16 June 2005
+
  * minor RPM spec file fix for Fedora Core 4
 
-0.9.0 - 15 November 2004
+### 0.9.0 - 15 November 2004
+
  * minor NLS bugfix
 
-0.8.9 - 6 November 2004
+### 0.8.9 - 6 November 2004
+
  * decimal values now accepted for rate and size, eg "`-L 1.23M`"
  * code cleanup
  * developers: "`make help`" now lists Makefile targets
 
-0.8.6 - 29 June 2004
+### 0.8.6 - 29 June 2004
+
  * use `uu_lock()` for terminal locking on FreeBSD
 
-0.8.5 - 2 May 2004
+### 0.8.5 - 2 May 2004
+
  * cursor positioning ("`-c`") reliability improved on systems with IPC
  * minor fix: made test 005 more reliable
  * new option "`--height`" ("`-H`")
 
-0.8.2 - 24 April 2004
+### 0.8.2 - 24 April 2004
+
  * allow k,m,g,t suffixes on numbers
  * added "`srpm`" and "`release`" Makefile targets
 
-0.8.1 - 19 April 2004
+### 0.8.1 - 19 April 2004
+
  * bugfix in cursor positioning ("`-c`")
 
-0.8.0 - 12 February 2004
+### 0.8.0 - 12 February 2004
+
  * replaced GNU getopt with my library code
  * replaced GNU gettext with my very minimal replacement
  * use *DESTDIR* instead of *RPM_BUILD_ROOT* for optional installation prefix
  * looked for flaws using RATS, cleaned up code
 
-0.7.0 - 8 February 2004
+### 0.7.0 - 8 February 2004
+
  * display buffer management fixes (thanks Cédric Delfosse)
  * replaced "`--enable-debug`" with "`--enable-debugging`" and "`--enable-profiling`"
 
-0.6.4 - 14 January 2004
+### 0.6.4 - 14 January 2004
+
  * fixed minor bug in RPM installation
  * bugfix in "`make index`" (only of interest to developers)
 
-0.6.3 - 22 December 2003
+### 0.6.3 - 22 December 2003
+
  * fixed transient bug that reported "resource unavailable" occasionally
 
-0.6.2 - 6 August 2003
+### 0.6.2 - 6 August 2003
+
  * block devices now have their size read correctly, so "`pv /dev/hda1`" works
  * minor code cleanups (mainly removal of CVS "Id" tags)
 
-0.6.0 - 3 August 2003
+### 0.6.0 - 3 August 2003
+
  * doing *^Z* then "`bg`" then "`fg`" now continues displaying
 
-0.5.9 - 23 July 2003
+### 0.5.9 - 23 July 2003
+
  * fix for test 007 when not in C locale
  * fix for build process to use *CPPFLAGS*
  * fix for build process to use correct i18n libraries
@@ -282,33 +399,39 @@
  * fix for install process - remember to `mkinstalldirs` before installing
  * fixes for building on Mac OS X
 
-0.5.3 - 4 May 2003
+### 0.5.3 - 4 May 2003
+
  * added Polish translation thanks to Bartosz Feński <fenio@o2.pl> <http://skawina.eu.org/> and Krystian Zubel
  * moved `doc/debian` to `./debian` at insistence of common sense
  * minor Solaris 8 compatibility fixes
  * seems to compile and test OK on Mac OS X
 
-0.5.0 - 15 April 2003
+### 0.5.0 - 15 April 2003
+
  * added French translation thanks to Stéphane Lacasse <stephane@gorfou.ca>
  * added German translation thanks to Marcos Kreinacke <public@kreinacke.com>
  * switched LGPL reference from "Library" to "Lesser"
 
-0.4.9 - 18 February 2003
+### 0.4.9 - 18 February 2003
+
  * support for >2GB files added where available (Debian bug #180986)
  * added `doc/debian` dir (from Cédric Delfosse)
  * added "`make rpm`" and "`make deb`" targets to build RPM and Debian packages
  * added a "`make pv-static`" rule to build a statically linked version
 
-0.4.5 - 13 December 2002
+### 0.4.5 - 13 December 2002
+
  * added Portuguese (Brazilian) translation thanks to Eduardo Aguiar
 
-0.4.4 - 7 December 2002
+### 0.4.4 - 7 December 2002
+
  * pause/resume support - don't count time while stopped
  * stop output when resumed in the background
  * terminal size change support
  * bugfix: "`<=>`" indicator no longer sticks at right hand edge
 
-0.4.0 - 27 November 2002
+### 0.4.0 - 27 November 2002
+
  * allow decimal interval values, eg 0.1, 0.5, etc
  * some simple tests added ("`make check`")
  * smoother throughput limiting ("`--rate-limit`"), now done in 0.1sec chunks
@@ -318,11 +441,13 @@
  * don't output final blank line if "`--numeric`"
  * use `fcntl()` instead of `flock()` for Solaris compatibility
 
-0.3.0 - 25 November 2002
+### 0.3.0 - 25 November 2002
+
  * handle broken output pipe gracefully
  * continue updating display even when output pipe is blocking
 
-0.2.6 - 21 October 2002
+### 0.2.6 - 21 October 2002
+
  * we now ignore *EINTR* on `select()`
  * variable-size buffer (still need to add code to change size)
  * added (tentative) support for internationalisation
@@ -332,26 +457,31 @@
  * added "`--rate-limit`" option to limit rate to a maximum throughput
  * added "`--quiet`" option (no output at all) to be used with "`--rate-limit`"
 
-0.2.5 - 23 July 2002
+### 0.2.5 - 23 July 2002
+
  * added *[FILE]...* arguments, like "`cat`"
  * function separation in code
  * some bug fixes related to numeric overflow
 
-0.2.3 - 19 July 2002
+### 0.2.3 - 19 July 2002
+
  * Texinfo manual written, man page updated
  * byte counter added
 
-0.2.0 - 18 July 2002
+### 0.2.0 - 18 July 2002
+
  * ETA counter added
  * screen width estimation added
  * progress bar added
 
-0.1.0 - 17 July 2002
+### 0.1.0 - 17 July 2002
+
  * main loop created
  * rate counter added
  * elapsed time counter added
  * percentage calculation added
 
-0.0.1 - 16 July 2002
+### 0.0.1 - 16 July 2002
+
  * package created
  * first draft of man page written

docs/TODO.md

@@ -0,0 +1,29 @@
+Things still to do.  (#n) indicates the issue tracker number.
+
+ * ([#3](https://codeberg.org/a-j-wood/pv/issues/3)) Option ("`-x`"?) to use xterm title line for status (Joachim Haga)
+ * ([#4](https://codeberg.org/a-j-wood/pv/issues/4)) Option for process title (Martin Sarsale) as "`pv - name:FooProcess -xyz - transferred: 1.3GB - 500KB/s - running: 10:15:30s`"
+ * ([#9](https://codeberg.org/a-j-wood/pv/issues/9)) Option to switch rate to per minute if really slow
+ * ([#10](https://codeberg.org/a-j-wood/pv/issues/10)) Add watchfd tests
+ * ([#11](https://codeberg.org/a-j-wood/pv/issues/11)) Option "`--progress-from FILE`", read last number and use it as bytes read (Jacek Wielemborek)
+ * ([#12](https://codeberg.org/a-j-wood/pv/issues/12)) Allow multiple "`-d`" options (Linus Heckemann for multiple PID:FD; Jacek Wielemborek)
+ * ([#15](https://codeberg.org/a-j-wood/pv/issues/15)) Use Unicode for more granular progress bar (Alexander Petrossian)
+ * ([#17](https://codeberg.org/a-j-wood/pv/issues/17)) Allow "`-r`" with "`-l`" and "`-n`" to output lines/sec (Roland Kletzing)
+ * ([#22](https://codeberg.org/a-j-wood/pv/issues/22)) Options to skip input and seek on output (Jason A. Pfeil, Feb 2022)
+ * ([#25](https://codeberg.org/a-j-wood/pv/issues/25)) Normalise progress to 100% on overrun (Andrej Gantvorg)
+ * ([#35](https://codeberg.org/a-j-wood/pv/issues/35)) Allow decimal values for "`-s`", "`-L`", "`-B`" (Thomas Watson - Aug 2020)
+ * ([#38](https://codeberg.org/a-j-wood/pv/issues/38)) Reset ETA on *SIGUSR1* (Jacek Wielemborek - Jan 2019)
+ * ([#40](https://codeberg.org/a-j-wood/pv/issues/40)) Permit "`-c`" with "`-d PID:FD`", reject "`-N`" with "`-d PID`" (Norman Rasmussen - Nov 2020)
+ * ([#43](https://codeberg.org/a-j-wood/pv/issues/43)) Differentiate between "`--eta`" and "`--fineta`" in display (André Stapf - Apr 2017)
+ * ([#45](https://codeberg.org/a-j-wood/pv/issues/45)) Option "`--sparse`" (with block size option) to write sparse output (Andriy Galetski - Apr 2019)
+ * ([#46](https://codeberg.org/a-j-wood/pv/issues/46)) Option to show speed gauge (% max speed) if progress not known (Ryan Cooley - Jun 2019)
+ * ([#47](https://codeberg.org/a-j-wood/pv/issues/47)) Analyse splice and buffer usage to improve performance
+ * ([#48](https://codeberg.org/a-j-wood/pv/issues/48)) Option to show multiple files with individual sizes and a cumulative total (Zach Riggle - Jul 2021)
+ * ([#49](https://codeberg.org/a-j-wood/pv/issues/49)) Option to provide stats for avg/min/max/stddev throughput (Venky.N.Iyer)
+ * ([#50](https://codeberg.org/a-j-wood/pv/issues/50)) Allow pv to report on a whole pipeline at once (Will Entriken - Feb 2011)
+ * ([#54](https://codeberg.org/a-j-wood/pv/issues/54)) Run command every n percent ([haarp](https://github.com/haarp))
+ * ([#56](https://codeberg.org/a-j-wood/pv/issues/56)) Support for backgrounding pv, and allowing it to be monitored separately ([jimbobmcgee](https://github.com/jimbobmcgee))
+ * ([#67](https://codeberg.org/a-j-wood/pv/issues/67)) Wrap another process to monitor its stdin & stdout ([Alex Mason](https://github.com/axman6))
+ * ([#76](https://codeberg.org/a-j-wood/pv/issues/76)) Provide a way to test translations without installing
+ * ([#81](https://codeberg.org/a-j-wood/pv/issues/81)) Keep last output on terminal when "pv -d" is done
+
+Any assistance would be appreciated.

docs/benchmark.sh

@@ -18,7 +18,7 @@ dd if=/dev/zero of="${test_input}" bs=1k count=1k >/dev/null 2>&1
 echo -e "Buf(k)\tRate(k)\tReads\tRsize\tWrites\tWsize"
 
 for ((buffer=100; buffer<=1000; buffer+=100)); do
-	for ((rate=0; rate<=1000; rate+=100)); do
+	for ((rate=100; rate<=1000; rate+=100)); do
 		rateparm="-L ${rate}k"
 		test ${rate} -eq 0 && rateparm=""
 		strace -tt -o "${strace_output}" \

docs/pv.1

@@ -1,17 +1,17 @@
-.TH @UCPACKAGE@ 1 "July 2023" Linux "User Manuals"
+.TH PV 1 "April 2024" Linux "User Manuals"
 .SH NAME
-@PACKAGE@ \- monitor the progress of data through a pipe
+pv \- monitor the progress of data through a pipe
 .SH SYNOPSIS
-.B @PACKAGE@
+.B pv
 [\fIOPTION\fR]
 [\fIFILE\fR]...
 .br
-.B @PACKAGE@
+.B pv
 [\fI\-h\fR|\fI\-V\fR]
 
 
 .SH DESCRIPTION
-.B @PACKAGE@
+.B pv
 shows the progress of data through a pipeline by giving information such as
 time elapsed, percentage completed (with progress bar), current throughput
 rate, total data transferred, and ETA.
@@ -20,13 +20,13 @@ To use it, insert it in a pipeline between two processes, with the
 appropriate options.  Its standard input will be passed through to its
 standard output and progress will be shown on standard error.
 
-.B @PACKAGE@
+.B pv
 will copy each supplied
-.B FILE
+.I FILE
 in turn to standard output
 .BR "" "(" -
 means standard input), or if no
-.BR FILE s
+.IR FILE s
 are specified just standard input is copied. This is the same behaviour
 as
 .BR cat (1).
@@ -35,15 +35,15 @@ A simple example to watch how quickly a file is transferred using
 .BR nc (1):
 
 .RS
-.B @PACKAGE@ file | nc -w 1 somewhere.com 3000
+.B pv file | nc -w 1 somewhere.com 3000
 .RE
 
 A similar example, transferring a file from another process and passing the
 expected size to
-.BR @PACKAGE@ :
+.BR pv :
 
 .RS
-.B cat file | @PACKAGE@ -s 12345 | nc -w 1 somewhere.com 3000
+.B cat file | pv -s 12345 | nc -w 1 somewhere.com 3000
 .RE
 
 A more complicated example using numeric output to feed into the
@@ -53,7 +53,7 @@ program for a full-screen progress display:
 .RS
 .B (tar cf - . \e
 .br
-.B " | @PACKAGE@ -n -s $(du -sb . | awk '{print $1}') \e"
+.B " | pv -n -s $(du -sb . | awk '{print $1}') \e"
 .br
 .B " | gzip -9 > out.tgz) 2>&1 \e"
 .br
@@ -63,24 +63,24 @@ program for a full-screen progress display:
 Taking an image of a disk, skipping errors:
 
 .RS
-.B @PACKAGE@ -EE /dev/your/disk/device > disk-image.img
+.B pv -EE /dev/your/disk/device > disk-image.img
 .RE
 
 Writing an image back to a disk:
 
 .RS
-.B @PACKAGE@ disk-image.img > /dev/your/disk/device
+.B pv disk-image.img > /dev/your/disk/device
 .RE
 
 Zeroing a disk:
 
 .RS
-.B @PACKAGE@ < /dev/zero > /dev/your/disk/device
+.B pv < /dev/zero > /dev/your/disk/device
 .RE
 
 Note that if the input size cannot be calculated, and the output is a block
 device, then the size of the block device will be used and
-.B @PACKAGE@
+.B pv
 will automatically stop at that size as if
 .B \-S
 had been given.
@@ -88,25 +88,25 @@ had been given.
 (Linux only): Watching file descriptor 3 opened by another process 1234:
 
 .RS
-.B @PACKAGE@ -d 1234:3
+.B pv -d 1234:3
 .RE
 
 (Linux only): Watching all file descriptors used by process 1234:
 
 .RS
-.B @PACKAGE@ -d 1234
+.B pv -d 1234
 .RE
 
 
 .SH OPTIONS
-.B @PACKAGE@
+.B pv
 takes many options, which are divided into display switches, output
 modifiers, and general options.
 
 
 .SH DISPLAY SWITCHES
 If no display switches are specified,
-.B @PACKAGE@
+.B pv
 behaves as if
 .BR \-p ", " \-t ", " \-e ", " \-r ", and " \-b
 had been given (i.e. everything except average rate is switched on).
@@ -114,8 +114,8 @@ Otherwise, only those display types that are explicitly switched on will be
 shown.
 .TP
 .B \-p, \-\-progress
-Turn the progress bar on.  If standard input is not a file and no
-size was given (with the
+Turn the progress bar on.  If any inputs are not files, or are
+unreadable, and no size was explicitly given (with the
 .B \-s
 modifier), the progress bar cannot indicate how close to completion the
 transfer is, so it will just move left and right to indicate that data is
@@ -123,7 +123,7 @@ moving.
 .TP
 .B \-t, \-\-timer
 Turn the timer on.  This will display the total elapsed time that
-.B @PACKAGE@
+.B pv
 has been running for.
 .TP
 .B \-e, \-\-eta
@@ -143,7 +143,8 @@ transfer.
 .TP
 .B \-a, \-\-average\-rate
 Turn the average rate counter on.  This will display the current average
-rate of data transfer (default: last 30s, see --average-rate-window).
+rate of data transfer (default: last 30s, see
+.BR \-m ).
 .TP
 .B \-b, \-\-bytes
 Turn the total byte counter on.  This will display the total amount of
@@ -153,6 +154,11 @@ data transferred so far.
 Display the total bits instead of the total bytes.  The output suffix will
 be "b" instead of "B".
 .TP
+.B \-k, \-\-si
+Display and interpret suffixes as multiples of 1000 rather than the default
+of 1024.  Note that this only takes effect on options after this one, so for
+consistency, specify this option first.
+.TP
 .B \-T, \-\-buffer\-percent
 Turn on the transfer buffer percentage display.  This will show the
 percentage of the transfer buffer in use - but see the caveat under
@@ -162,9 +168,9 @@ in the
 section below.  Implies
 .BR \-C .
 .TP
-.B \-A, \-\-last\-written NUM
+.BI \-A\  NUM \fR,\ \fB\-\-last\-written\  NUM
 Show the last
-.B NUM
+.I NUM
 bytes written - but see the caveat under
 .B %nA
 in the
@@ -172,7 +178,7 @@ in the
 section below.  Implies
 .BR \-C .
 .TP
-.B \-F, \-\-format FORMAT
+.BI \-F\  FORMAT \fR,\ \fB\-\-format\  FORMAT
 Ignore the options
 .BR \-p ,
 .BR \-t ,
@@ -184,14 +190,14 @@ Ignore the options
 and
 .BR \-A ,
 and instead use the format string
-.B FORMAT
+.I FORMAT
 to determine the output format.  See the
 .B FORMATTING
 section below.
 .TP
 .B \-n, \-\-numeric
 Numeric output.  Instead of giving a visual indication of progress,
-.B @PACKAGE@
+.B pv
 will give an integer percentage, one per line, on standard error, suitable
 for piping (via convoluted redirection) into
 .BR dialog (1).
@@ -238,23 +244,23 @@ or
 .BR mcrypt (1)
 which require a passphrase before data can be processed.
 .TP
-.B \-D, \-\-delay-start SEC
+.BI \-D\  SEC \fR,\ \fB\-\-delay\-start\  SEC
 Wait until 
-.B SEC
+.I SEC
 seconds have passed before showing any progress information, for example in
 a script where you only want to show a progress bar if it starts taking a
 long time.  Note that this can be a decimal such as 0.5.
 .TP
-.B \-s SIZE, \-\-size SIZE
+.BI \-s\  SIZE \fR,\ \fB\-\-size\  SIZE
 Assume the total amount of data to be transferred is
-.B SIZE
+.I SIZE
 bytes when calculating percentages and ETAs.  The same suffixes of "k", "m"
 etc can be used as with
 .BR -L .
 .TP
 .B ""
 If
-.B SIZE
+.I SIZE
 starts with
 .BR "@" ,
 the size of file whose name follows the
@@ -265,7 +271,7 @@ will be used.
 Note that
 .B \-\-size
 has no effect if used with
-.B -d PID
+.BI \-d\  PID
 to watch all file descriptors of a process, but will work with
 .BR "-d PID:FD" .
 .TP
@@ -273,39 +279,49 @@ to watch all file descriptors of a process, but will work with
 Instead of counting bytes, count lines (newline characters). The progress
 bar will only move when a new line is found, and the value passed to the
 .B \-s
-option will be interpreted as a line count.  Note that file sizes are not
-automatically calculated when this option is used, to avoid having to read
-all files twice.
+option will be interpreted as a line count.
+.TP
+.B ""
+If this option is used without
+.BR \-s ,
+the "total size" (in this case, total line count) is calculated by reading
+through all input files once before transfer starts.  If any inputs are
+pipes or non-regular files, or are unreadable, the total size will not be
+calculated.
 .TP
 .B \-0, \-\-null
-Count lines as null terminated.  This option implies \-\-line\-mode.
+Count lines as terminated with a zero byte instead of with a newline.
+This option implies \-\-line\-mode.
 .TP
-.B \-i SEC, \-\-interval SEC
+.BI \-i\  SEC \fR,\ \fB\-\-interval\  SEC
 Wait
-.B SEC
+.I SEC
 seconds between updates.  The default is to update every second.
 Note that this can be a decimal such as 0.1.
 .TP
-.B \-m SEC, \-\-average-rate-window SEC
+.BI \-m\  SEC \fR,\ \fB\-\-average-rate-window\  SEC
 Compute current average rate over a
-.B SEC
-seconds window for average rate and ETA calculations (default 30s).
+.I SEC
+seconds window for average rate and ETA calculations (default 30 seconds).
 .TP
-.B \-w WIDTH, \-\-width WIDTH
+.BI \-w\  WIDTH \fR,\ \fB\-\-width\  WIDTH
 Assume the terminal is
-.B WIDTH
+.I WIDTH
 characters wide, instead of trying to work it out (or assuming 80 if it
-cannot be guessed).
+cannot be guessed).  If this option is used, the output width will not be
+adjusted if the width of the terminal changes while the transfer is running.
 .TP
-.B \-H HEIGHT, \-\-height HEIGHT
+.BI \-H\  HEIGHT \fR,\ \fB\-\-height\  HEIGHT
 Assume the terminal is
-.B HEIGHT
+.I HEIGHT
 rows high, instead of trying to work it out (or assuming 25 if it
-cannot be guessed).
+cannot be guessed).  If this option is used, the output height will not be
+adjusted if the height of the terminal changes while the transfer is
+running.
 .TP
-.B \-N NAME, \-\-name NAME
+.BI \-N\  NAME \fR,\ \fB\-\-name\  NAME
 Prefix the output information with
-.BR NAME .
+.IR NAME .
 Useful in conjunction with
 .B \-c
 if you have a complicated pipeline and you want to be able to tell different
@@ -313,7 +329,7 @@ parts of it apart.
 .TP
 .B \-f, \-\-force
 Force output.  Normally,
-.B @PACKAGE@
+.B pv
 will not output any visual display if standard error is not a terminal. 
 This option forces it to do so.
 .TP
@@ -322,21 +338,25 @@ Use cursor positioning escape sequences instead of just using carriage
 returns.  This is useful in conjunction with
 .B \-N
 (name) if you are using multiple
-.B @PACKAGE@
+.B pv
 invocations in a single, long, pipeline.
 
 
 .SH DATA TRANSFER MODIFIERS
 .TP
-.B \-L RATE, \-\-rate-limit RATE
+.BI \-L\  RATE \fR,\ \fB\-\-rate-limit\  RATE
 Limit the transfer to a maximum of
-.B RATE
+.I RATE
 bytes per second.  A suffix of "K", "M", "G", or "T" can be added to denote
-kibibytes (*1024), mebibytes, and so on.
+kibibytes (*1024), mebibytes, and so on.  If
+.B \-\-si
+was also passed, suffixes will denote kilobytes (*1000), megabytes, etc. 
+Note the caveat about the positioning of
+.B \-\-si .
 .TP
-.B \-B BYTES, \-\-buffer-size BYTES
+.BI \-B\  BYTES \fR,\ \fB\-\-buffer-size\  BYTES
 Use a transfer buffer size of
-.B BYTES
+.I BYTES
 bytes.  A suffix of "K", "M", "G", or "T" can be added to denote
 kibibytes (*1024), mebibytes, and so on.  The default buffer size is the
 block size of the input file's filesystem multiplied by 32 (512KiB max), or
@@ -359,11 +379,14 @@ but means that the transfer buffer may not be used.  This prevents
 .B \-A
 and
 .B \-T
-from working, and makes
+from working, cannot work with
+.BR \-X ,
+and makes
 .B \-B
 redundant, so using
 .BR \-A ,
 .BR \-T ,
+.BR \-X ,
 or
 .B \-B
 automatically switches on
@@ -389,6 +412,24 @@ Specify
 twice to only report a read error once per file, instead of reporting each
 byte range skipped.
 .TP
+.BI \-Z\  BYTES \fR,\ \fB\-\-error\-skip\-block\  BYTES
+When ignoring read errors with
+.BR \-E ,
+instead of trying to adaptively skip by reading small amounts and skipping
+progressively larger sections until a read succeeds, move to the next file
+block of
+.I BYTES
+bytes as soon as an error occurs.  There may still be some shorter skips
+where the block being skipped coincides with the end of the transfer buffer.
+.TP
+.B ""
+This option can only be used with
+.B \-E
+and is intended for use when reading from a block device, such as
+.B \-E\ \-Z\ 4K
+to skip in 4 kibibyte blocks.  This will speed up reads from faulty media,
+at the expense of potentially losing more data.
+.TP
 .B \-S, \-\-stop-at-size
 If a size was specified with
 .BR \-s ,
@@ -404,50 +445,59 @@ may improve the accuracy of the progress bar when writing to a slow disk.
 .TP
 .B \-K, \-\-direct-io
 Set the
-.I O_DIRECT
+.B O_DIRECT
 flag on all inputs and outputs, if it is available.  This will minimise
 the effect of caches, at the cost of performance.  Due to memory alignment
 requirements, it also may cause read or write failures with an error of
 "Invalid argument", especially if reading and writing files across a variety
 of filesystems in a single
-.B @PACKAGE@
+.B pv
 call.  Use this option with caution.
 .TP
-.B \-d PID[:FD], \-\-watchfd PID[:FD]
+.B \-X, \-\-discard
+Instead of transferring input data to standard output, discard it.  This is
+equivalent to redirecting standard output to
+.IR /dev/null ,
+except that
+.BR write (2)
+is never called.  Implies
+.BR \-C .
+.TP
+.BI \-d\  PID\fR[\fB:\fR\fIFD\fR],\  \fB\-\-watchfd\  PID\fR[\fB:\fR\fIFD\fR]
 Instead of transferring data, watch file descriptor
-.B FD
+.I FD
 of process
-.BR PID ,
+.IR PID ,
 and show its progress.  The
-.B @PACKAGE@
+.B pv
 process will exit when
-.B FD
+.I FD
 either changes to a different file, changes read/write mode, or is closed;
 other data transfer modifiers - and remote control - may not be used with
 this option.
 .TP
 .B ""
 If only a
-.B PID
+.I PID
 is specified, then that process will be watched, and all regular files and
 block devices it opens will be shown with a progress bar.  The
-.B @PACKAGE@
+.B pv
 process will exit when process
-.B PID
+.I PID
 exits.
 .TP
-.B \-R PID, \-\-remote PID
+.BI \-R\  PID \fR,\ \fB\-\-remote\  PID
 If
-.B PID
+.I PID
 is an instance of
-.B @PACKAGE@
+.B pv
 that is already running,
-.B \-R PID
+.BI \-R\  PID
 will cause that instance to act as though it had been given
 this instance's command line instead.  For example, if
-.B @PACKAGE@ -L 123K
+.B pv -L 123K
 is running with process ID 9876, then running
-.B @PACKAGE@ -R 9876 -L 321K
+.B pv -R 9876 -L 321K
 will cause it to start using a rate limit of 321KiB instead of 123KiB.
 Note that some options cannot be changed while running, such as
 .BR \-c ,
@@ -460,17 +510,17 @@ and
 
 .SH GENERAL OPTIONS
 .TP
-.B \-P FILE, \-\-pidfile FILE
+.BI \-P\  FILE \fR,\ \fB\-\-pidfile\  FILE
 Save the process ID of
-.B @PACKAGE@
+.B pv
 in
-.BR FILE .
-The file will be truncated if it already exists, and will be removed when
-.B @PACKAGE@
+.IR FILE .
+The file will be replaced if it already exists, and will be removed when
+.B pv
 exits.  While
-.B @PACKAGE@
+.B pv
 is running, it will contain a single number - the process ID of
-.B @PACKAGE@
+.B pv
 - followed by a newline.
 .TP
 .B \-h, \-\-help
@@ -547,6 +597,7 @@ Padded to 9 characters with spaces, and suffixed with :.
 .TP
 .B %%
 A single %.
+
 .P
 The format string equivalent of turning on all display switches is
 .BR "\`%N %b %T %t %r %a %p %e'" .
@@ -556,19 +607,19 @@ The format string equivalent of turning on all display switches is
 Some suggested common switch combinations:
 
 .TP
-.B @PACKAGE@ -ptebar
+.B pv -ptebar
 Show a progress bar, elapsed time, estimated completion time, byte counter,
 average rate, and current rate.
 .TP
-.B @PACKAGE@ -betlap
+.B pv -betlap
 Show a progress bar, elapsed time, estimated completion time, line counter,
 and average rate, counting lines instead of bytes.
 .TP
-.B @PACKAGE@ -t
+.B pv -t
 Show only the elapsed time - useful as a simple timer, e.g.
 .BR "sleep 10m | pv -t" .
 .TP
-.B @PACKAGE@ -pterb
+.B pv -pterb
 The default behaviour: progress bar, elapsed time, estimated completion
 time, current rate, and byte counter.
 
@@ -612,6 +663,40 @@ Memory allocation failed.
 A zero exit status indicates no problems.
 
 
+.SH ENVIRONMENT
+The following environment variables may affect
+.BR pv :
+
+.TP
+.B HOME
+The current user's home directory.  This may be used by the remote control
+mechanism
+(the
+.B \-\-remote
+option)
+to exchange messages between
+.B pv
+instances: if the
+.I /run/user/UID/
+directory does not exist (where
+.I UID
+is the current user ID), then
+.I $HOME/.pv/
+will be used instead.
+.TP
+.BR TMPDIR ", " TMP
+The directory to create per-tty lock files for the terminal when using the
+.B \-\-cursor
+option.  If
+.B TMPDIR
+is set to a non-empty value, it is the directory under which lock files are
+created.  Otherwise, if
+.B TMP
+is set, then it is used; and if neither are set, then
+.I /tmp
+is used.
+
+
 .SH AUTHOR
 Written by Andrew Wood, with patches submitted by various other people. 
 Please see the package's ACKNOWLEDGEMENTS file for a complete list of
@@ -620,9 +705,8 @@ contributors.
 
 .SH KNOWN PROBLEMS
 The following problems are known to exist in
-.BR @PACKAGE@ :
-.TP
-.B *
+.BR pv :
+.IP \(bu 3
 In some versions of
 .BR bash (1)
 and
@@ -634,8 +718,7 @@ shell, due to the subprocess being run in a separate process group from the
 one that owns the terminal.  In these cases, use
 .BR \-\-force .
 .P
-.TP
-.B *
+.IP \(bu 3
 The
 .B -c
 option does not work properly on Cygwin without
@@ -644,29 +727,27 @@ running, if started near the bottom of the screen (IPC is needed to handle
 the terminal scrolling).  To fix this, start
 .B cygserver
 before using
-.BR "@PACKAGE@ -c" .
+.BR "pv -c" .
 .P
-.TP
-.B *
+.IP \(bu 3
 The
 .B -R
-option is not available on Cygwin without
-.B cygserver
-running (SYSV IPC is needed). To fix this, start
-.B cygserver
-before running the instance of
-.B @PACKAGE@
-you want, at runtime, to change the parameters of.
+option requires that either
+.B /run/user/<uid>/
+or
+.B $HOME/
+can be written to, for inter-process communication.
 .P
 If you find any other problems, please report them.
 
 
 .SH REPORTING BUGS
-Report bugs in
-.B @PACKAGE@
-to pv@ivarch.com or use the contact form linked from the
-.B @PACKAGE@
-home page: <http://www.ivarch.com/programs/pv.shtml>
+Please report any bugs to
+.BR pv@ivarch.com .
+
+Alternatively, use the issue tracker linked from the
+.B pv
+home page: <https://www.ivarch.com/programs/pv.shtml>
 
 
 .SH "SEE ALSO"
@@ -675,7 +756,12 @@ home page: <http://www.ivarch.com/programs/pv.shtml>
 .BR splice (2),
 .BR open (2)
 (for
-.IR O_DIRECT )
+.BR O_DIRECT )
 
-.SH LICENSE
-This is free software, distributed under the ARTISTIC 2.0 license.
+.SH COPYRIGHT
+Copyright \(co 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2024 Andrew Wood.
+
+License GPLv3+: GNU GPL version 3 or later <https://www.gnu.org/licenses/gpl-3.0.html>.
+
+This is free software: you are free to change and redistribute it.  There is
+NO WARRANTY, to the extent permitted by law.

docs/pv.1.md

@@ -0,0 +1,573 @@
+# NAME
+
+pv - monitor the progress of data through a pipe
+
+# SYNOPSIS
+
+**pv** \[*OPTION*\] \[*FILE*\]\...\
+**pv** \[*-h*\|*-V*\]
+
+# DESCRIPTION
+
+**pv** shows the progress of data through a pipeline by giving
+information such as time elapsed, percentage completed (with progress
+bar), current throughput rate, total data transferred, and ETA.
+
+To use it, insert it in a pipeline between two processes, with the
+appropriate options. Its standard input will be passed through to its
+standard output and progress will be shown on standard error.
+
+**pv** will copy each supplied *FILE* in turn to standard output (**-**
+means standard input), or if no *FILE*s are specified just standard
+input is copied. This is the same behaviour as **cat**(1).
+
+A simple example to watch how quickly a file is transferred using
+**nc**(1):
+
+> **pv file \| nc -w 1 somewhere.com 3000**
+
+A similar example, transferring a file from another process and passing
+the expected size to **pv**:
+
+> **cat file \| pv -s 12345 \| nc -w 1 somewhere.com 3000**
+
+A more complicated example using numeric output to feed into the
+**dialog**(1) program for a full-screen progress display:
+
+> **(tar cf - . \\** \
+> **\| pv -n -s \$(du -sb . \| awk \'{print \$1}\') \\** \
+> **\| gzip -9 \> out.tgz) 2\>&1 \\** \
+> **\| dialog \--gauge \'Progress\' 7 70**
+
+Taking an image of a disk, skipping errors:
+
+> **pv -EE /dev/your/disk/device \> disk-image.img**
+
+Writing an image back to a disk:
+
+> **pv disk-image.img \> /dev/your/disk/device**
+
+Zeroing a disk:
+
+> **pv \< /dev/zero \> /dev/your/disk/device**
+
+Note that if the input size cannot be calculated, and the output is a
+block device, then the size of the block device will be used and **pv**
+will automatically stop at that size as if **-S** had been given.
+
+(Linux only): Watching file descriptor 3 opened by another process 1234:
+
+> **pv -d 1234:3**
+
+(Linux only): Watching all file descriptors used by process 1234:
+
+> **pv -d 1234**
+
+# OPTIONS
+
+**pv** takes many options, which are divided into display switches,
+output modifiers, and general options.
+
+# DISPLAY SWITCHES
+
+If no display switches are specified, **pv** behaves as if **-p**,
+**-t**, **-e**, **-r**, and **-b** had been given (i.e. everything
+except average rate is switched on). Otherwise, only those display types
+that are explicitly switched on will be shown.
+
+**-p, \--progress**
+
+:   Turn the progress bar on. If any inputs are not files, or are
+    unreadable, and no size was explicitly given (with the **-s**
+    modifier), the progress bar cannot indicate how close to completion
+    the transfer is, so it will just move left and right to indicate
+    that data is moving.
+
+**-t, \--timer**
+
+:   Turn the timer on. This will display the total elapsed time that
+    **pv** has been running for.
+
+**-e, \--eta**
+
+:   Turn the ETA timer on. This will attempt to guess, based on current
+    transfer rates and the total data size, how long it will be before
+    completion. This option will have no effect if the total data size
+    cannot be determined.
+
+**-I, \--fineta**
+
+:   Turn the ETA timer on, but display the estimated local time of
+    arrival instead of time left. When the estimated time is more than 6
+    hours in the future, the date is shown as well.
+
+**-r, \--rate**
+
+:   Turn the rate counter on. This will display the current rate of data
+    transfer.
+
+**-a, \--average-rate**
+
+:   Turn the average rate counter on. This will display the current
+    average rate of data transfer (default: last 30s, see **-m**).
+
+**-b, \--bytes**
+
+:   Turn the total byte counter on. This will display the total amount
+    of data transferred so far.
+
+**-8, \--bits**
+
+:   Display the total bits instead of the total bytes. The output suffix
+    will be \"b\" instead of \"B\".
+
+**-k, \--si**
+
+:   Display and interpret suffixes as multiples of 1000 rather than the
+    default of 1024. Note that this only takes effect on options after
+    this one, so for consistency, specify this option first.
+
+**-T, \--buffer-percent**
+
+:   Turn on the transfer buffer percentage display. This will show the
+    percentage of the transfer buffer in use - but see the caveat under
+    **%T** in the **FORMATTING** section below. Implies **-C**.
+
+**-A NUM, \--last-written NUM**
+
+:   Show the last *NUM* bytes written - but see the caveat under **%nA**
+    in the **FORMATTING** section below. Implies **-C**.
+
+**-F FORMAT, \--format FORMAT**
+
+:   Ignore the options **-p**, **-t**, **-e**, **-r**, **-a**, **-b**,
+    **-T**, and **-A**, and instead use the format string *FORMAT* to
+    determine the output format. See the **FORMATTING** section below.
+
+**-n, \--numeric**
+
+:   Numeric output. Instead of giving a visual indication of progress,
+    **pv** will give an integer percentage, one per line, on standard
+    error, suitable for piping (via convoluted redirection) into
+    **dialog**(1). Note that **-f** is not required if **-n** is being
+    used.
+
+:   Note that if **\--numeric** is in use, then adding **\--bytes** will
+    cause the number of bytes processed so far to be output instead of a
+    percentage; if **\--line-mode** is also in use as well as
+    **\--bytes** and **\--numeric**, then instead of bytes or a
+    percentage, the number of lines so far is output. And finally, if
+    **\--timer** is added to **\--numeric**, then each output line is
+    prefixed with the elapsed time so far, as a decimal number of
+    seconds.
+
+**-q, \--quiet**
+
+:   No output. Useful if the **-L** option is being used on its own to
+    just limit the transfer rate of a pipe.
+
+# OUTPUT MODIFIERS
+
+**-W, \--wait**
+
+:   Wait until the first byte has been transferred before showing any
+    progress information or calculating any ETAs. Useful if the program
+    you are piping to or from requires extra information before it
+    starts, eg piping data into **gpg**(1) or **mcrypt**(1) which
+    require a passphrase before data can be processed.
+
+**-D SEC, \--delay-start SEC**
+
+:   Wait until *SEC* seconds have passed before showing any progress
+    information, for example in a script where you only want to show a
+    progress bar if it starts taking a long time. Note that this can be
+    a decimal such as 0.5.
+
+**-s SIZE, \--size SIZE**
+
+:   Assume the total amount of data to be transferred is *SIZE* bytes
+    when calculating percentages and ETAs. The same suffixes of \"k\",
+    \"m\" etc can be used as with **-L**.
+
+:   If *SIZE* starts with **@**, the size of file whose name follows the
+    **@** will be used.
+
+:   Note that **\--size** has no effect if used with **-d ***PID* to
+    watch all file descriptors of a process, but will work with **-d
+    PID:FD**.
+
+**-l, \--line-mode**
+
+:   Instead of counting bytes, count lines (newline characters). The
+    progress bar will only move when a new line is found, and the value
+    passed to the **-s** option will be interpreted as a line count.
+
+:   If this option is used without **-s**, the \"total size\" (in this
+    case, total line count) is calculated by reading through all input
+    files once before transfer starts. If any inputs are pipes or
+    non-regular files, or are unreadable, the total size will not be
+    calculated.
+
+**-0, \--null**
+
+:   Count lines as terminated with a zero byte instead of with a
+    newline. This option implies \--line-mode.
+
+**-i SEC, \--interval SEC**
+
+:   Wait *SEC* seconds between updates. The default is to update every
+    second. Note that this can be a decimal such as 0.1.
+
+**-m SEC, \--average-rate-window SEC**
+
+:   Compute current average rate over a *SEC* seconds window for average
+    rate and ETA calculations (default 30 seconds).
+
+**-w WIDTH, \--width WIDTH**
+
+:   Assume the terminal is *WIDTH* characters wide, instead of trying to
+    work it out (or assuming 80 if it cannot be guessed). If this option
+    is used, the output width will not be adjusted if the width of the
+    terminal changes while the transfer is running.
+
+**-H HEIGHT, \--height HEIGHT**
+
+:   Assume the terminal is *HEIGHT* rows high, instead of trying to work
+    it out (or assuming 25 if it cannot be guessed). If this option is
+    used, the output height will not be adjusted if the height of the
+    terminal changes while the transfer is running.
+
+**-N NAME, \--name NAME**
+
+:   Prefix the output information with *NAME*. Useful in conjunction
+    with **-c** if you have a complicated pipeline and you want to be
+    able to tell different parts of it apart.
+
+**-f, \--force**
+
+:   Force output. Normally, **pv** will not output any visual display if
+    standard error is not a terminal. This option forces it to do so.
+
+**-c, \--cursor**
+
+:   Use cursor positioning escape sequences instead of just using
+    carriage returns. This is useful in conjunction with **-N** (name)
+    if you are using multiple **pv** invocations in a single, long,
+    pipeline.
+
+# DATA TRANSFER MODIFIERS
+
+**-L RATE, \--rate-limit RATE**
+
+:   Limit the transfer to a maximum of *RATE* bytes per second. A suffix
+    of \"K\", \"M\", \"G\", or \"T\" can be added to denote kibibytes
+    (\*1024), mebibytes, and so on. If **\--si** was also passed,
+    suffixes will denote kilobytes (\*1000), megabytes, etc. Note the
+    caveat about the positioning of **\--si .**
+
+**-B BYTES, \--buffer-size BYTES**
+
+:   Use a transfer buffer size of *BYTES* bytes. A suffix of \"K\",
+    \"M\", \"G\", or \"T\" can be added to denote kibibytes (\*1024),
+    mebibytes, and so on. The default buffer size is the block size of
+    the input file\'s filesystem multiplied by 32 (512KiB max), or
+    400KiB if the block size cannot be determined. This can be useful on
+    platforms like MacOS which perform better in pipelines with specific
+    buffer sizes such as 1024. Implies **-C**.
+
+**-C, \--no-splice**
+
+:   Never use **splice**(2), even if it would normally be possible. The
+    **splice**(2) system call is a more efficient way of transferring
+    data from or to a pipe than regular **read**(2) and **write**(2),
+    but means that the transfer buffer may not be used. This prevents
+    **-A** and **-T** from working, cannot work with **-X**, and makes
+    **-B** redundant, so using **-A**, **-T**, **-X**, or **-B**
+    automatically switches on **-C**. Switching on **-C** results in a
+    small loss of transfer efficiency. (This option has no effect on
+    systems where **splice**(2) is unavailable).
+
+**-E, \--skip-errors**
+
+:   Ignore read errors by attempting to skip past the offending
+    sections. The corresponding parts of the output will be null bytes.
+    At first only a few bytes will be skipped, but if there are many
+    errors in a row then the skips will move up to chunks of 512. This
+    is intended to be similar to **dd conv=sync,noerror** but has not
+    been as thoroughly tested.
+
+:   Specify **-E** twice to only report a read error once per file,
+    instead of reporting each byte range skipped.
+
+**-Z BYTES, \--error-skip-block BYTES**
+
+:   When ignoring read errors with **-E**, instead of trying to
+    adaptively skip by reading small amounts and skipping progressively
+    larger sections until a read succeeds, move to the next file block
+    of *BYTES* bytes as soon as an error occurs. There may still be some
+    shorter skips where the block being skipped coincides with the end
+    of the transfer buffer.
+
+:   This option can only be used with **-E** and is intended for use
+    when reading from a block device, such as **-E -Z 4K** to skip in 4
+    kibibyte blocks. This will speed up reads from faulty media, at the
+    expense of potentially losing more data.
+
+**-S, \--stop-at-size**
+
+:   If a size was specified with **-s**, stop transferring data once
+    that many bytes have been written, instead of continuing to the end
+    of input.
+
+**-Y, \--sync**
+
+:   After every write operation, synchronise the buffer caches to disk -
+    see **fdatasync**(2). This has no effect when the output is a pipe.
+    Using **-Y** may improve the accuracy of the progress bar when
+    writing to a slow disk.
+
+**-K, \--direct-io**
+
+:   Set the **O_DIRECT** flag on all inputs and outputs, if it is
+    available. This will minimise the effect of caches, at the cost of
+    performance. Due to memory alignment requirements, it also may cause
+    read or write failures with an error of \"Invalid argument\",
+    especially if reading and writing files across a variety of
+    filesystems in a single **pv** call. Use this option with caution.
+
+**-X, \--discard**
+
+:   Instead of transferring input data to standard output, discard it.
+    This is equivalent to redirecting standard output to */dev/null*,
+    except that **write**(2) is never called. Implies **-C**.
+
+**-d PID\[:FD\], \--watchfd PID\[:FD\]**
+
+:   Instead of transferring data, watch file descriptor *FD* of process
+    *PID*, and show its progress. The **pv** process will exit when *FD*
+    either changes to a different file, changes read/write mode, or is
+    closed; other data transfer modifiers - and remote control - may not
+    be used with this option.
+
+:   If only a *PID* is specified, then that process will be watched, and
+    all regular files and block devices it opens will be shown with a
+    progress bar. The **pv** process will exit when process *PID* exits.
+
+**-R PID, \--remote PID**
+
+:   If *PID* is an instance of **pv** that is already running, **-R
+    ***PID* will cause that instance to act as though it had been given
+    this instance\'s command line instead. For example, if **pv -L
+    123K** is running with process ID 9876, then running **pv -R 9876 -L
+    321K** will cause it to start using a rate limit of 321KiB instead
+    of 123KiB. Note that some options cannot be changed while running,
+    such as **-c**, **-l**, **-f**, **-D**, **-E**, and **-S**.
+
+# GENERAL OPTIONS
+
+**-P FILE, \--pidfile FILE**
+
+:   Save the process ID of **pv** in *FILE*. The file will be replaced
+    if it already exists, and will be removed when **pv** exits. While
+    **pv** is running, it will contain a single number - the process ID
+    of **pv** - followed by a newline.
+
+**-h, \--help**
+
+:   Print a usage message on standard output and exit successfully.
+
+**-V, \--version**
+
+:   Print version information on standard output and exit successfully.
+
+# FORMATTING
+
+If the **-F** option is given, then the output format is determined by
+the given format string. Within that string, the following sequences can
+be used:
+
+**%p**
+
+:   Progress bar. Expands to fill the remaining space. Should only be
+    specified once. Equivalent to **-p**.
+
+**%t**
+
+:   Elapsed time. Equivalent to **-t**.
+
+**%e**
+
+:   ETA as time remaining. Equivalent to **-e**.
+
+**%I**
+
+:   ETA as local time of completion. Equivalent to **-I**.
+
+**%r**
+
+:   Current data transfer rate. Equivalent to **-r**.
+
+**%a**
+
+:   Average data transfer rate. Equivalent to **-a**.
+
+**%b**
+
+:   Bytes transferred so far (or lines if **-l** was specified).
+    Equivalent to **-b**. If **\--bits** was specified, **%b** shows the
+    bits transferred so far, not bytes.
+
+**%T**
+
+:   Percentage of the transfer buffer in use. Equivalent to **-T**.
+    Shows \"{\-\-\--}\" if the transfer is being done with
+    **splice**(2), since splicing to or from pipes does not use the
+    buffer.
+
+**%nA**
+
+:   Show the last **n** bytes written (e.g. **%16A** for the last 16
+    bytes). Shows only dots if the transfer is being done with
+    **splice**(2), since splicing to or from pipes does not use the
+    buffer.
+
+**%N**
+
+:   Name prefix given by **-N**. Padded to 9 characters with spaces, and
+    suffixed with :.
+
+**%%**
+
+:   A single %.
+
+The format string equivalent of turning on all display switches is
+**\`%N %b %T %t %r %a %p %e\'**.
+
+# COMMON SWITCHES
+
+Some suggested common switch combinations:
+
+**pv -ptebar**
+
+:   Show a progress bar, elapsed time, estimated completion time, byte
+    counter, average rate, and current rate.
+
+**pv -betlap**
+
+:   Show a progress bar, elapsed time, estimated completion time, line
+    counter, and average rate, counting lines instead of bytes.
+
+**pv -t**
+
+:   Show only the elapsed time - useful as a simple timer, e.g. **sleep
+    10m \| pv -t**.
+
+**pv -pterb**
+
+:   The default behaviour: progress bar, elapsed time, estimated
+    completion time, current rate, and byte counter.
+
+On MacOS, it may be useful to specify **-B 1024** in a pipeline, as this
+may improve performance.
+
+# EXIT STATUS
+
+An exit status of 1 indicates a problem with the **-R** or **-P**
+options.
+
+Any other exit status is a bitmask of the following:
+
+**2**
+
+:   One or more files could not be accessed, **stat**(2)ed, or opened.
+
+**4**
+
+:   An input file was the same as the output file.
+
+**8**
+
+:   Internal error with closing a file or moving to the next file.
+
+**16**
+
+:   There was an error while transferring data from one or more input
+    files.
+
+**32**
+
+:   A signal was caught that caused an early exit.
+
+**64**
+
+:   Memory allocation failed.
+
+A zero exit status indicates no problems.
+
+# ENVIRONMENT
+
+The following environment variables may affect **pv**:
+
+**HOME**
+
+:   The current user\'s home directory. This may be used by the remote
+    control mechanism (the **\--remote** option) to exchange messages
+    between **pv** instances: if the */run/user/UID/* directory does not
+    exist (where *UID* is the current user ID), then *\$HOME/.pv/* will
+    be used instead.
+
+**TMPDIR**, **TMP**
+
+:   The directory to create per-tty lock files for the terminal when
+    using the **\--cursor** option. If **TMPDIR** is set to a non-empty
+    value, it is the directory under which lock files are created.
+    Otherwise, if **TMP** is set, then it is used; and if neither are
+    set, then */tmp* is used.
+
+# AUTHOR
+
+Written by Andrew Wood, with patches submitted by various other people.
+Please see the package\'s ACKNOWLEDGEMENTS file for a complete list of
+contributors.
+
+# KNOWN PROBLEMS
+
+The following problems are known to exist in **pv**:
+
+-   In some versions of **bash**(1) and **zsh**(1), the construct
+    **\<(pv filename)** will not output any progress to the terminal
+    when run from an interactive shell, due to the subprocess being run
+    in a separate process group from the one that owns the terminal. In
+    these cases, use **\--force**.
+
+-   The **-c** option does not work properly on Cygwin without
+    **cygserver** running, if started near the bottom of the screen (IPC
+    is needed to handle the terminal scrolling). To fix this, start
+    **cygserver** before using **pv -c**.
+
+-   The **-R** option requires that either **/run/user/\<uid\>/** or
+    **\$HOME/** can be written to, for inter-process communication.
+
+If you find any other problems, please report them.
+
+# REPORTING BUGS
+
+Please report any bugs to **pv@ivarch.com**.
+
+Alternatively, use the issue tracker linked from the **pv** home page:
+\<https://www.ivarch.com/programs/pv.shtml\>
+
+# SEE ALSO
+
+**cat**(1), **dialog**(1), **splice**(2), **open**(2) (for **O_DIRECT**)
+
+# COPYRIGHT
+
+Copyright © 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2024 Andrew
+Wood.
+
+License GPLv3+: GNU GPL version 3 or later
+\<https://www.gnu.org/licenses/gpl-3.0.html\>.
+
+This is free software: you are free to change and redistribute it. There
+is NO WARRANTY, to the extent permitted by law.

generate.sh

@@ -1,44 +0,0 @@
-#!/bin/sh
-#
-# Script to autogenerate the `configure' script, and the config header
-# template if `autoconf' is available, and then rebuild the dependency list.
-
-set -e
-
-cd $(dirname $0)
-
-test -t 1 && echo "${0##*/}: running autoconf"
-autoconf autoconf/configure.in > configure
-chmod 755 configure
-
-if command -v autoheader >/dev/null; then
-	test -t 1 && echo "${0##*/}: running autoheader"
-	autoheader autoconf/configure.in
-else
-	test -t 1 && echo "${0##*/}: autoheader not found, skipping"
-fi
-
-echo > autoconf/make/depend.mk~
-echo > autoconf/make/filelist.mk~
-echo > autoconf/make/modules.mk~
-
-MAKE=make
-command -v gmake >/dev/null 2>&1 && MAKE=gmake
-
-rm -rf .gen
-mkdir .gen
-cd .gen
-
-test -t 1 && echo "${0##*/}: running new \`configure' script"
-sh ../configure
-
-test -t 1 && echo "${0##*/}: regenerating Makefile fragments"
-$MAKE make
-$MAKE dep
-
-test -t 1 && echo "${0##*/}: cleaning up"
-cd ..
-rm -rf .gen
-rm -rf autom4te.cache autoconf/autom4te.cache
-
-# EOF

po/.gitignore

@@ -0,0 +1,9 @@
+Makevars.template
+*.sed
+*.gmo
+*.header
+*.sin
+*.pot
+Rules-quot
+stamp-po
+*~

po/LINGUAS

@@ -0,0 +1,4 @@
+de
+fr
+pl
+pt

po/Makefile.in.in

@@ -0,0 +1,510 @@
+# Makefile for PO directory in any package using GNU gettext.
+# Copyright (C) 1995-2000 Ulrich Drepper <drepper@gnu.ai.mit.edu>
+# Copyright (C) 2000-2020 Free Software Foundation, Inc.
+#
+# Copying and distribution of this file, with or without modification,
+# are permitted in any medium without royalty provided the copyright
+# notice and this notice are preserved.  This file is offered as-is,
+# without any warranty.
+#
+# Origin: gettext-0.21
+GETTEXT_MACRO_VERSION = 0.20
+
+PACKAGE = @PACKAGE@
+VERSION = @VERSION@
+PACKAGE_BUGREPORT = @PACKAGE_BUGREPORT@
+
+SED = @SED@
+SHELL = /bin/sh
+@SET_MAKE@
+
+srcdir = @srcdir@
+top_srcdir = @top_srcdir@
+VPATH = @srcdir@
+
+prefix = @prefix@
+exec_prefix = @exec_prefix@
+datarootdir = @datarootdir@
+datadir = @datadir@
+localedir = @localedir@
+gettextsrcdir = $(datadir)/gettext/po
+
+INSTALL = @INSTALL@
+INSTALL_DATA = @INSTALL_DATA@
+
+# We use $(mkdir_p).
+# In automake <= 1.9.x, $(mkdir_p) is defined either as "mkdir -p --" or as
+# "$(mkinstalldirs)" or as "$(install_sh) -d". For these automake versions,
+# @install_sh@ does not start with $(SHELL), so we add it.
+# In automake >= 1.10, @mkdir_p@ is derived from ${MKDIR_P}, which is defined
+# either as "/path/to/mkdir -p" or ".../install-sh -c -d". For these automake
+# versions, $(mkinstalldirs) and $(install_sh) are unused.
+mkinstalldirs = $(SHELL) @install_sh@ -d
+install_sh = $(SHELL) @install_sh@
+MKDIR_P = @MKDIR_P@
+mkdir_p = @mkdir_p@
+
+# When building gettext-tools, we prefer to use the built programs
+# rather than installed programs.  However, we can't do that when we
+# are cross compiling.
+CROSS_COMPILING = @CROSS_COMPILING@
+
+GMSGFMT_ = @GMSGFMT@
+GMSGFMT_no = @GMSGFMT@
+GMSGFMT_yes = @GMSGFMT_015@
+GMSGFMT = $(GMSGFMT_$(USE_MSGCTXT))
+XGETTEXT_ = @XGETTEXT@
+XGETTEXT_no = @XGETTEXT@
+XGETTEXT_yes = @XGETTEXT_015@
+XGETTEXT = $(XGETTEXT_$(USE_MSGCTXT))
+MSGMERGE = @MSGMERGE@
+MSGMERGE_UPDATE = @MSGMERGE@ --update
+MSGMERGE_FOR_MSGFMT_OPTION = @MSGMERGE_FOR_MSGFMT_OPTION@
+MSGINIT = msginit
+MSGCONV = msgconv
+MSGFILTER = msgfilter
+
+POFILES = @POFILES@
+GMOFILES = @GMOFILES@
+UPDATEPOFILES = @UPDATEPOFILES@
+DUMMYPOFILES = @DUMMYPOFILES@
+DISTFILES.common = Makefile.in.in remove-potcdate.sin \
+$(DISTFILES.common.extra1) $(DISTFILES.common.extra2) $(DISTFILES.common.extra3)
+DISTFILES = $(DISTFILES.common) Makevars POTFILES.in \
+$(POFILES) $(GMOFILES) \
+$(DISTFILES.extra1) $(DISTFILES.extra2) $(DISTFILES.extra3)
+
+POTFILES = \
+
+CATALOGS = @CATALOGS@
+
+POFILESDEPS_ = $(srcdir)/$(DOMAIN).pot
+POFILESDEPS_yes = $(POFILESDEPS_)
+POFILESDEPS_no =
+POFILESDEPS = $(POFILESDEPS_$(PO_DEPENDS_ON_POT))
+
+DISTFILESDEPS_ = update-po
+DISTFILESDEPS_yes = $(DISTFILESDEPS_)
+DISTFILESDEPS_no =
+DISTFILESDEPS = $(DISTFILESDEPS_$(DIST_DEPENDS_ON_UPDATE_PO))
+
+# Makevars gets inserted here. (Don't remove this line!)
+
+all: all-@USE_NLS@
+
+
+.SUFFIXES:
+.SUFFIXES: .po .gmo .sed .sin .nop .po-create .po-update
+
+# The .pot file, stamp-po, .po files, and .gmo files appear in release tarballs.
+# The GNU Coding Standards say in
+# <https://www.gnu.org/prep/standards/html_node/Makefile-Basics.html>:
+#   "GNU distributions usually contain some files which are not source files
+#    ... . Since these files normally appear in the source directory, they
+#    should always appear in the source directory, not in the build directory.
+#    So Makefile rules to update them should put the updated files in the
+#    source directory."
+# Therefore we put these files in the source directory, not the build directory.
+
+# During .po -> .gmo conversion, take into account the most recent changes to
+# the .pot file. This eliminates the need to update the .po files when the
+# .pot file has changed, which would be troublesome if the .po files are put
+# under version control.
+$(GMOFILES): $(srcdir)/$(DOMAIN).pot
+.po.gmo:
+	@lang=`echo $* | sed -e 's,.*/,,'`; \
+	test "$(srcdir)" = . && cdcmd="" || cdcmd="cd $(srcdir) && "; \
+	echo "$${cdcmd}rm -f $${lang}.gmo && $(MSGMERGE) $(MSGMERGE_FOR_MSGFMT_OPTION) -o $${lang}.1po $${lang}.po $(DOMAIN).pot && $(GMSGFMT) -c --statistics --verbose -o $${lang}.gmo $${lang}.1po && rm -f $${lang}.1po"; \
+	cd $(srcdir) && \
+	rm -f $${lang}.gmo && \
+	$(MSGMERGE) $(MSGMERGE_FOR_MSGFMT_OPTION) -o $${lang}.1po $${lang}.po $(DOMAIN).pot && \
+	$(GMSGFMT) -c --statistics --verbose -o t-$${lang}.gmo $${lang}.1po && \
+	mv t-$${lang}.gmo $${lang}.gmo && \
+	rm -f $${lang}.1po
+
+.sin.sed:
+	sed -e '/^#/d' $< > t-$@
+	mv t-$@ $@
+
+
+all-yes: $(srcdir)/stamp-po
+all-no:
+
+# Ensure that the gettext macros and this Makefile.in.in are in sync.
+CHECK_MACRO_VERSION = \
+	test "$(GETTEXT_MACRO_VERSION)" = "@GETTEXT_MACRO_VERSION@" \
+	  || { echo "*** error: gettext infrastructure mismatch: using a Makefile.in.in from gettext version $(GETTEXT_MACRO_VERSION) but the autoconf macros are from gettext version @GETTEXT_MACRO_VERSION@" 1>&2; \
+	       exit 1; \
+	     }
+
+# $(srcdir)/$(DOMAIN).pot is only created when needed. When xgettext finds no
+# internationalized messages, no $(srcdir)/$(DOMAIN).pot is created (because
+# we don't want to bother translators with empty POT files). We assume that
+# LINGUAS is empty in this case, i.e. $(POFILES) and $(GMOFILES) are empty.
+# In this case, $(srcdir)/stamp-po is a nop (i.e. a phony target).
+
+# $(srcdir)/stamp-po is a timestamp denoting the last time at which the CATALOGS
+# have been loosely updated. Its purpose is that when a developer or translator
+# checks out the package from a version control system, and the $(DOMAIN).pot
+# file is not under version control, "make" will update the $(DOMAIN).pot and
+# the $(CATALOGS), but subsequent invocations of "make" will do nothing. This
+# timestamp would not be necessary if updating the $(CATALOGS) would always
+# touch them; however, the rule for $(POFILES) has been designed to not touch
+# files that don't need to be changed.
+$(srcdir)/stamp-po: $(srcdir)/$(DOMAIN).pot
+	@$(CHECK_MACRO_VERSION)
+	test ! -f $(srcdir)/$(DOMAIN).pot || \
+	  test -z "$(GMOFILES)" || $(MAKE) $(GMOFILES)
+	@test ! -f $(srcdir)/$(DOMAIN).pot || { \
+	  echo "touch $(srcdir)/stamp-po" && \
+	  echo timestamp > $(srcdir)/stamp-poT && \
+	  mv $(srcdir)/stamp-poT $(srcdir)/stamp-po; \
+	}
+
+# Note: Target 'all' must not depend on target '$(DOMAIN).pot-update',
+# otherwise packages like GCC can not be built if only parts of the source
+# have been downloaded.
+
+# This target rebuilds $(DOMAIN).pot; it is an expensive operation.
+# Note that $(DOMAIN).pot is not touched if it doesn't need to be changed.
+# The determination of whether the package xyz is a GNU one is based on the
+# heuristic whether some file in the top level directory mentions "GNU xyz".
+# If GNU 'find' is available, we avoid grepping through monster files.
+$(DOMAIN).pot-update: $(POTFILES) $(srcdir)/POTFILES.in remove-potcdate.sed
+	package_gnu="$(PACKAGE_GNU)"; \
+	test -n "$$package_gnu" || { \
+	  if { if (LC_ALL=C find --version) 2>/dev/null | grep GNU >/dev/null; then \
+	         LC_ALL=C find -L $(top_srcdir) -maxdepth 1 -type f -size -10000000c -exec grep -i 'GNU @PACKAGE@' /dev/null '{}' ';' 2>/dev/null; \
+	       else \
+	         LC_ALL=C grep -i 'GNU @PACKAGE@' $(top_srcdir)/* 2>/dev/null; \
+	       fi; \
+	     } | grep -v 'libtool:' >/dev/null; then \
+	     package_gnu=yes; \
+	   else \
+	     package_gnu=no; \
+	   fi; \
+	}; \
+	if test "$$package_gnu" = "yes"; then \
+	  package_prefix='GNU '; \
+	else \
+	  package_prefix=''; \
+	fi; \
+	if test -n '$(MSGID_BUGS_ADDRESS)' || test '$(PACKAGE_BUGREPORT)' = '@'PACKAGE_BUGREPORT'@'; then \
+	  msgid_bugs_address='$(MSGID_BUGS_ADDRESS)'; \
+	else \
+	  msgid_bugs_address='$(PACKAGE_BUGREPORT)'; \
+	fi; \
+	case `$(XGETTEXT) --version | sed 1q | sed -e 's,^[^0-9]*,,'` in \
+	  '' | 0.[0-9] | 0.[0-9].* | 0.1[0-5] | 0.1[0-5].* | 0.16 | 0.16.[0-1]*) \
+	    $(XGETTEXT) --default-domain=$(DOMAIN) --directory=$(top_srcdir) \
+	      --add-comments=TRANSLATORS: \
+	      --files-from=$(srcdir)/POTFILES.in \
+	      --copyright-holder='$(COPYRIGHT_HOLDER)' \
+	      --msgid-bugs-address="$$msgid_bugs_address" \
+	      $(XGETTEXT_OPTIONS) @XGETTEXT_EXTRA_OPTIONS@ \
+	    ;; \
+	  *) \
+	    $(XGETTEXT) --default-domain=$(DOMAIN) --directory=$(top_srcdir) \
+	      --add-comments=TRANSLATORS: \
+	      --files-from=$(srcdir)/POTFILES.in \
+	      --copyright-holder='$(COPYRIGHT_HOLDER)' \
+	      --package-name="$${package_prefix}@PACKAGE@" \
+	      --package-version='@VERSION@' \
+	      --msgid-bugs-address="$$msgid_bugs_address" \
+	      $(XGETTEXT_OPTIONS) @XGETTEXT_EXTRA_OPTIONS@ \
+	    ;; \
+	esac
+	test ! -f $(DOMAIN).po || { \
+	  if test -f $(srcdir)/$(DOMAIN).pot-header; then \
+	    sed -e '1,/^#$$/d' < $(DOMAIN).po > $(DOMAIN).1po && \
+	    cat $(srcdir)/$(DOMAIN).pot-header $(DOMAIN).1po > $(DOMAIN).po && \
+	    rm -f $(DOMAIN).1po \
+	    || exit 1; \
+	  fi; \
+	  if test -f $(srcdir)/$(DOMAIN).pot; then \
+	    sed -f remove-potcdate.sed < $(srcdir)/$(DOMAIN).pot > $(DOMAIN).1po && \
+	    sed -f remove-potcdate.sed < $(DOMAIN).po > $(DOMAIN).2po && \
+	    if cmp $(DOMAIN).1po $(DOMAIN).2po >/dev/null 2>&1; then \
+	      rm -f $(DOMAIN).1po $(DOMAIN).2po $(DOMAIN).po; \
+	    else \
+	      rm -f $(DOMAIN).1po $(DOMAIN).2po $(srcdir)/$(DOMAIN).pot && \
+	      mv $(DOMAIN).po $(srcdir)/$(DOMAIN).pot; \
+	    fi; \
+	  else \
+	    mv $(DOMAIN).po $(srcdir)/$(DOMAIN).pot; \
+	  fi; \
+	}
+
+# This rule has no dependencies: we don't need to update $(DOMAIN).pot at
+# every "make" invocation, only create it when it is missing.
+# Only "make $(DOMAIN).pot-update" or "make dist" will force an update.
+$(srcdir)/$(DOMAIN).pot:
+	$(MAKE) $(DOMAIN).pot-update
+
+# This target rebuilds a PO file if $(DOMAIN).pot has changed.
+# Note that a PO file is not touched if it doesn't need to be changed.
+$(POFILES): $(POFILESDEPS)
+	@test -f $(srcdir)/$(DOMAIN).pot || $(MAKE) $(srcdir)/$(DOMAIN).pot
+	@lang=`echo $@ | sed -e 's,.*/,,' -e 's/\.po$$//'`; \
+	if test -f "$(srcdir)/$${lang}.po"; then \
+	  test "$(srcdir)" = . && cdcmd="" || cdcmd="cd $(srcdir) && "; \
+	  echo "$${cdcmd}$(MSGMERGE_UPDATE) $(MSGMERGE_OPTIONS) --lang=$${lang} --previous $${lang}.po $(DOMAIN).pot"; \
+	  cd $(srcdir) \
+	    && { case `$(MSGMERGE_UPDATE) --version | sed 1q | sed -e 's,^[^0-9]*,,'` in \
+	           '' | 0.[0-9] | 0.[0-9].* | 0.1[0-5] | 0.1[0-5].*) \
+	             $(MSGMERGE_UPDATE) $(MSGMERGE_OPTIONS) $${lang}.po $(DOMAIN).pot;; \
+	           0.1[6-7] | 0.1[6-7].*) \
+	             $(MSGMERGE_UPDATE) $(MSGMERGE_OPTIONS) --previous $${lang}.po $(DOMAIN).pot;; \
+	           *) \
+	             $(MSGMERGE_UPDATE) $(MSGMERGE_OPTIONS) --lang=$${lang} --previous $${lang}.po $(DOMAIN).pot;; \
+	         esac; \
+	       }; \
+	else \
+	  $(MAKE) $${lang}.po-create; \
+	fi
+
+
+install: install-exec install-data
+install-exec:
+install-data: install-data-@USE_NLS@
+	if test "$(PACKAGE)" = "gettext-tools"; then \
+	  $(mkdir_p) $(DESTDIR)$(gettextsrcdir); \
+	  for file in $(DISTFILES.common) Makevars.template; do \
+	    $(INSTALL_DATA) $(srcdir)/$$file \
+			    $(DESTDIR)$(gettextsrcdir)/$$file; \
+	  done; \
+	  for file in Makevars; do \
+	    rm -f $(DESTDIR)$(gettextsrcdir)/$$file; \
+	  done; \
+	else \
+	  : ; \
+	fi
+install-data-no: all
+install-data-yes: all
+	@catalogs='$(CATALOGS)'; \
+	for cat in $$catalogs; do \
+	  cat=`basename $$cat`; \
+	  lang=`echo $$cat | sed -e 's/\.gmo$$//'`; \
+	  dir=$(localedir)/$$lang/LC_MESSAGES; \
+	  $(mkdir_p) $(DESTDIR)$$dir; \
+	  if test -r $$cat; then realcat=$$cat; else realcat=$(srcdir)/$$cat; fi; \
+	  $(INSTALL_DATA) $$realcat $(DESTDIR)$$dir/$(DOMAIN).mo; \
+	  echo "installing $$realcat as $(DESTDIR)$$dir/$(DOMAIN).mo"; \
+	  for lc in '' $(EXTRA_LOCALE_CATEGORIES); do \
+	    if test -n "$$lc"; then \
+	      if (cd $(DESTDIR)$(localedir)/$$lang && LC_ALL=C ls -l -d $$lc 2>/dev/null) | grep ' -> ' >/dev/null; then \
+	        link=`cd $(DESTDIR)$(localedir)/$$lang && LC_ALL=C ls -l -d $$lc | sed -e 's/^.* -> //'`; \
+	        mv $(DESTDIR)$(localedir)/$$lang/$$lc $(DESTDIR)$(localedir)/$$lang/$$lc.old; \
+	        mkdir $(DESTDIR)$(localedir)/$$lang/$$lc; \
+	        (cd $(DESTDIR)$(localedir)/$$lang/$$lc.old && \
+	         for file in *; do \
+	           if test -f $$file; then \
+	             ln -s ../$$link/$$file $(DESTDIR)$(localedir)/$$lang/$$lc/$$file; \
+	           fi; \
+	         done); \
+	        rm -f $(DESTDIR)$(localedir)/$$lang/$$lc.old; \
+	      else \
+	        if test -d $(DESTDIR)$(localedir)/$$lang/$$lc; then \
+	          :; \
+	        else \
+	          rm -f $(DESTDIR)$(localedir)/$$lang/$$lc; \
+	          mkdir $(DESTDIR)$(localedir)/$$lang/$$lc; \
+	        fi; \
+	      fi; \
+	      rm -f $(DESTDIR)$(localedir)/$$lang/$$lc/$(DOMAIN).mo; \
+	      ln -s ../LC_MESSAGES/$(DOMAIN).mo $(DESTDIR)$(localedir)/$$lang/$$lc/$(DOMAIN).mo 2>/dev/null || \
+	      ln $(DESTDIR)$(localedir)/$$lang/LC_MESSAGES/$(DOMAIN).mo $(DESTDIR)$(localedir)/$$lang/$$lc/$(DOMAIN).mo 2>/dev/null || \
+	      cp -p $(DESTDIR)$(localedir)/$$lang/LC_MESSAGES/$(DOMAIN).mo $(DESTDIR)$(localedir)/$$lang/$$lc/$(DOMAIN).mo; \
+	      echo "installing $$realcat link as $(DESTDIR)$(localedir)/$$lang/$$lc/$(DOMAIN).mo"; \
+	    fi; \
+	  done; \
+	done
+
+install-strip: install
+
+installdirs: installdirs-exec installdirs-data
+installdirs-exec:
+installdirs-data: installdirs-data-@USE_NLS@
+	if test "$(PACKAGE)" = "gettext-tools"; then \
+	  $(mkdir_p) $(DESTDIR)$(gettextsrcdir); \
+	else \
+	  : ; \
+	fi
+installdirs-data-no:
+installdirs-data-yes:
+	@catalogs='$(CATALOGS)'; \
+	for cat in $$catalogs; do \
+	  cat=`basename $$cat`; \
+	  lang=`echo $$cat | sed -e 's/\.gmo$$//'`; \
+	  dir=$(localedir)/$$lang/LC_MESSAGES; \
+	  $(mkdir_p) $(DESTDIR)$$dir; \
+	  for lc in '' $(EXTRA_LOCALE_CATEGORIES); do \
+	    if test -n "$$lc"; then \
+	      if (cd $(DESTDIR)$(localedir)/$$lang && LC_ALL=C ls -l -d $$lc 2>/dev/null) | grep ' -> ' >/dev/null; then \
+	        link=`cd $(DESTDIR)$(localedir)/$$lang && LC_ALL=C ls -l -d $$lc | sed -e 's/^.* -> //'`; \
+	        mv $(DESTDIR)$(localedir)/$$lang/$$lc $(DESTDIR)$(localedir)/$$lang/$$lc.old; \
+	        mkdir $(DESTDIR)$(localedir)/$$lang/$$lc; \
+	        (cd $(DESTDIR)$(localedir)/$$lang/$$lc.old && \
+	         for file in *; do \
+	           if test -f $$file; then \
+	             ln -s ../$$link/$$file $(DESTDIR)$(localedir)/$$lang/$$lc/$$file; \
+	           fi; \
+	         done); \
+	        rm -f $(DESTDIR)$(localedir)/$$lang/$$lc.old; \
+	      else \
+	        if test -d $(DESTDIR)$(localedir)/$$lang/$$lc; then \
+	          :; \
+	        else \
+	          rm -f $(DESTDIR)$(localedir)/$$lang/$$lc; \
+	          mkdir $(DESTDIR)$(localedir)/$$lang/$$lc; \
+	        fi; \
+	      fi; \
+	    fi; \
+	  done; \
+	done
+
+# Define this as empty until I found a useful application.
+installcheck:
+
+uninstall: uninstall-exec uninstall-data
+uninstall-exec:
+uninstall-data: uninstall-data-@USE_NLS@
+	if test "$(PACKAGE)" = "gettext-tools"; then \
+	  for file in $(DISTFILES.common) Makevars.template; do \
+	    rm -f $(DESTDIR)$(gettextsrcdir)/$$file; \
+	  done; \
+	else \
+	  : ; \
+	fi
+uninstall-data-no:
+uninstall-data-yes:
+	catalogs='$(CATALOGS)'; \
+	for cat in $$catalogs; do \
+	  cat=`basename $$cat`; \
+	  lang=`echo $$cat | sed -e 's/\.gmo$$//'`; \
+	  for lc in LC_MESSAGES $(EXTRA_LOCALE_CATEGORIES); do \
+	    rm -f $(DESTDIR)$(localedir)/$$lang/$$lc/$(DOMAIN).mo; \
+	  done; \
+	done
+
+check: all
+
+info dvi ps pdf html tags TAGS ctags CTAGS ID:
+
+install-dvi install-ps install-pdf install-html:
+
+mostlyclean:
+	rm -f remove-potcdate.sed
+	rm -f $(srcdir)/stamp-poT
+	rm -f core core.* $(DOMAIN).po $(DOMAIN).1po $(DOMAIN).2po *.new.po
+	rm -fr *.o
+
+clean: mostlyclean
+
+distclean: clean
+	rm -f Makefile Makefile.in POTFILES
+
+maintainer-clean: distclean
+	@echo "This command is intended for maintainers to use;"
+	@echo "it deletes files that may require special tools to rebuild."
+	rm -f $(srcdir)/$(DOMAIN).pot $(srcdir)/stamp-po $(GMOFILES)
+
+distdir = $(top_builddir)/$(PACKAGE)-$(VERSION)/$(subdir)
+dist distdir:
+	test -z "$(DISTFILESDEPS)" || $(MAKE) $(DISTFILESDEPS)
+	@$(MAKE) dist2
+# This is a separate target because 'update-po' must be executed before.
+dist2: $(srcdir)/stamp-po $(DISTFILES)
+	@dists="$(DISTFILES)"; \
+	if test "$(PACKAGE)" = "gettext-tools"; then \
+	  dists="$$dists Makevars.template"; \
+	fi; \
+	if test -f $(srcdir)/$(DOMAIN).pot; then \
+	  dists="$$dists $(DOMAIN).pot stamp-po"; \
+	else \
+	  case $(XGETTEXT) in \
+	    :) echo "Warning: Creating a tarball without '$(DOMAIN).pot', because a suitable 'xgettext' program was not found in PATH." 1>&2;; \
+	    *) echo "Warning: Creating a tarball without '$(DOMAIN).pot', because 'xgettext' found no strings to extract. Check the contents of the POTFILES.in file and the XGETTEXT_OPTIONS in the Makevars file." 1>&2;; \
+	  esac; \
+	fi; \
+	if test -f $(srcdir)/ChangeLog; then \
+	  dists="$$dists ChangeLog"; \
+	fi; \
+	for i in 0 1 2 3 4 5 6 7 8 9; do \
+	  if test -f $(srcdir)/ChangeLog.$$i; then \
+	    dists="$$dists ChangeLog.$$i"; \
+	  fi; \
+	done; \
+	if test -f $(srcdir)/LINGUAS; then dists="$$dists LINGUAS"; fi; \
+	for file in $$dists; do \
+	  if test -f $$file; then \
+	    cp -p $$file $(distdir) || exit 1; \
+	  else \
+	    cp -p $(srcdir)/$$file $(distdir) || exit 1; \
+	  fi; \
+	done
+
+update-po: Makefile
+	$(MAKE) $(DOMAIN).pot-update
+	test -z "$(UPDATEPOFILES)" || $(MAKE) $(UPDATEPOFILES)
+	$(MAKE) update-gmo
+
+# General rule for creating PO files.
+
+.nop.po-create:
+	@lang=`echo $@ | sed -e 's/\.po-create$$//'`; \
+	echo "File $$lang.po does not exist. If you are a translator, you can create it through 'msginit'." 1>&2; \
+	exit 1
+
+# General rule for updating PO files.
+
+.nop.po-update:
+	@lang=`echo $@ | sed -e 's/\.po-update$$//'`; \
+	if test "$(PACKAGE)" = "gettext-tools" && test "$(CROSS_COMPILING)" != "yes"; then PATH=`pwd`/../src:$$PATH; fi; \
+	tmpdir=`pwd`; \
+	echo "$$lang:"; \
+	test "$(srcdir)" = . && cdcmd="" || cdcmd="cd $(srcdir) && "; \
+	echo "$${cdcmd}$(MSGMERGE) $(MSGMERGE_OPTIONS) --lang=$$lang --previous $$lang.po $(DOMAIN).pot -o $$lang.new.po"; \
+	cd $(srcdir); \
+	if { case `$(MSGMERGE) --version | sed 1q | sed -e 's,^[^0-9]*,,'` in \
+	       '' | 0.[0-9] | 0.[0-9].* | 0.1[0-5] | 0.1[0-5].*) \
+	         $(MSGMERGE) $(MSGMERGE_OPTIONS) -o $$tmpdir/$$lang.new.po $$lang.po $(DOMAIN).pot;; \
+	       0.1[6-7] | 0.1[6-7].*) \
+	         $(MSGMERGE) $(MSGMERGE_OPTIONS) --previous -o $$tmpdir/$$lang.new.po $$lang.po $(DOMAIN).pot;; \
+	       *) \
+	         $(MSGMERGE) $(MSGMERGE_OPTIONS) --lang=$$lang --previous -o $$tmpdir/$$lang.new.po $$lang.po $(DOMAIN).pot;; \
+	     esac; \
+	   }; then \
+	  if cmp $$lang.po $$tmpdir/$$lang.new.po >/dev/null 2>&1; then \
+	    rm -f $$tmpdir/$$lang.new.po; \
+	  else \
+	    if mv -f $$tmpdir/$$lang.new.po $$lang.po; then \
+	      :; \
+	    else \
+	      echo "msgmerge for $$lang.po failed: cannot move $$tmpdir/$$lang.new.po to $$lang.po" 1>&2; \
+	      exit 1; \
+	    fi; \
+	  fi; \
+	else \
+	  echo "msgmerge for $$lang.po failed!" 1>&2; \
+	  rm -f $$tmpdir/$$lang.new.po; \
+	fi
+
+$(DUMMYPOFILES):
+
+update-gmo: Makefile $(GMOFILES)
+	@:
+
+# Recreate Makefile by invoking config.status. Explicitly invoke the shell,
+# because execution permission bits may not work on the current file system.
+# Use @SHELL@, which is the shell determined by autoconf for the use by its
+# scripts, not $(SHELL) which is hardwired to /bin/sh and may be deficient.
+Makefile: Makefile.in.in Makevars $(top_builddir)/config.status @POMAKEFILEDEPS@
+	cd $(top_builddir) \
+	  && @SHELL@ ./config.status $(subdir)/$@.in po-directories
+
+force:
+
+# Tell versions [3.59,3.63) of GNU make not to export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:

po/Makevars

@@ -0,0 +1,82 @@
+# Makefile variables for PO directory in any package using GNU gettext.
+#
+# Copyright (C) 2003-2019 Free Software Foundation, Inc.
+# This file is free software; the Free Software Foundation gives
+# unlimited permission to use, copy, distribute, and modify it.
+
+# Usually the message domain is the same as the package name.
+DOMAIN = $(PACKAGE)
+
+# These two variables depend on the location of this directory.
+subdir = po
+top_builddir = ..
+
+# These options get passed to xgettext.
+XGETTEXT_OPTIONS = --keyword=_ --keyword=N_
+
+# This is the copyright holder that gets inserted into the header of the
+# $(DOMAIN).pot file.  Set this to the copyright holder of the surrounding
+# package.  (Note that the msgstr strings, extracted from the package's
+# sources, belong to the copyright holder of the package.)  Translators are
+# expected to transfer the copyright for their translations to this person
+# or entity, or to disclaim their copyright.  The empty string stands for
+# the public domain; in this case the translators are expected to disclaim
+# their copyright.
+COPYRIGHT_HOLDER = Andrew Wood
+
+# This tells whether or not to prepend "GNU " prefix to the package
+# name that gets inserted into the header of the $(DOMAIN).pot file.
+# Possible values are "yes", "no", or empty.  If it is empty, try to
+# detect it automatically by scanning the files in $(top_srcdir) for
+# "GNU packagename" string.
+PACKAGE_GNU =
+
+# This is the email address or URL to which the translators shall report
+# bugs in the untranslated strings:
+# - Strings which are not entire sentences, see the maintainer guidelines
+#   in the GNU gettext documentation, section 'Preparing Strings'.
+# - Strings which use unclear terms or require additional context to be
+#   understood.
+# - Strings which make invalid assumptions about notation of date, time or
+#   money.
+# - Pluralisation problems.
+# - Incorrect English spelling.
+# - Incorrect formatting.
+# It can be your email address, or a mailing list address where translators
+# can write to without being subscribed, or the URL of a web page through
+# which the translators can contact you.
+MSGID_BUGS_ADDRESS =
+
+# This is the list of locale categories, beyond LC_MESSAGES, for which the
+# message catalogs shall be used.  It is usually empty.
+EXTRA_LOCALE_CATEGORIES =
+
+# This tells whether the $(DOMAIN).pot file contains messages with an 'msgctxt'
+# context.  Possible values are "yes" and "no".  Set this to yes if the
+# package uses functions taking also a message context, like pgettext(), or
+# if in $(XGETTEXT_OPTIONS) you define keywords with a context argument.
+USE_MSGCTXT = no
+
+# These options get passed to msgmerge.
+# Useful options are in particular:
+#   --previous            to keep previous msgids of translated messages,
+#   --quiet               to reduce the verbosity.
+MSGMERGE_OPTIONS =
+
+# These options get passed to msginit.
+# If you want to disable line wrapping when writing PO files, add
+# --no-wrap to MSGMERGE_OPTIONS, XGETTEXT_OPTIONS, and
+# MSGINIT_OPTIONS.
+MSGINIT_OPTIONS =
+
+# This tells whether or not to regenerate a PO file when $(DOMAIN).pot
+# has changed.  Possible values are "yes" and "no".  Set this to no if
+# the POT file is checked in the repository and the version control
+# program ignores timestamps.
+PO_DEPENDS_ON_POT = yes
+
+# This tells whether or not to forcibly update $(DOMAIN).pot and
+# regenerate PO files on "make dist".  Possible values are "yes" and
+# "no".  Set this to no if the POT file and PO files are maintained
+# externally.
+DIST_DEPENDS_ON_UPDATE_PO = yes

po/POTFILES.in

@@ -0,0 +1,16 @@
+src/main/debug.c
+src/main/help.c
+src/main/main.c
+src/main/options.c
+src/main/remote.c
+src/main/version.c
+src/pv/cursor.c
+src/pv/display.c
+src/pv/file.c
+src/pv/loop.c
+src/pv/number.c
+src/pv/signal.c
+src/pv/state.c
+src/pv/string.c
+src/pv/transfer.c
+src/pv/watchpid.c

po/de.po

@@ -1,7 +1,8 @@
 msgid ""
 msgstr ""
-"Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2023-07-17 21:52+0100\n"
+"Report-Msgid-Bugs-To: pv@ivarch.com\n"
+"POT-Creation-Date: 2024-04-21 14:15+0100\n"
+"Language: de\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Date: 1999-06-01 15:18:29+0100\n"
 "From: Andrew Wood <ivarch@ubik>\n"
@@ -19,430 +20,279 @@ msgstr ""
 "nls/intl/textdomain.c src/nls/intl-cat/cat-compat.c src/nls/intl-gett/intl-"
 "compat.c\n"
 
-#: src/pv/cursor.c:80
-msgid "failed to get terminal name"
-msgstr "Terminalname konnte nicht gelesen werden"
-
-#: src/pv/cursor.c:125
-msgid "failed to open lock file"
-msgstr "Sperrdatei konnte nicht geöffnet werden"
-
-#: src/pv/cursor.c:159
-msgid "lock attempt failed"
-msgstr "Sperrversuch fehlgeschlagen"
-
-#: src/pv/cursor.c:409
-msgid "failed to open terminal"
-msgstr "Terminal konnte nicht geöffnet werden"
-
-#: src/pv/file.c:119
-msgid "failed to seek to start of output"
-msgstr "Konnte nicht versuchen, die Ausgabe zu starten"
-
-#: src/pv/file.c:215
-msgid "failed to close file"
-msgstr "Datei konnte nicht geschlossen werden"
-
-#: src/pv/file.c:238
-msgid "failed to read file"
-msgstr "Datei konnte nicht gelesen werden"
-
-#: src/pv/file.c:248 src/main/options.c:288
-msgid "failed to stat file"
-msgstr "Dateiinformationen konnten nicht gelesen werden"
-
-#: src/pv/file.c:257
-msgid "failed to stat output file"
-msgstr "Dateiinformationen für Ausgabe-Datei konnten nicht gelesen werden"
-
-#: src/pv/file.c:280
-msgid "input file is output file"
-msgstr "Eingabe-Datei ist Ausgabe-Datei"
-
-#: src/pv/loop.c:527 src/pv/loop.c:597 src/pv/loop.c:649 src/pv/watchpid.c:68
-#: src/pv/watchpid.c:79 src/pv/watchpid.c:93 src/pv/watchpid.c:104
-#: src/pv/watchpid.c:145 src/pv/watchpid.c:168 src/pv/watchpid.c:178
-#: src/pv/watchpid.c:192 src/pv/watchpid.c:285 src/pv/watchpid.c:294
-#: src/pv/watchpid.c:332 src/pv/watchpid.c:349
-msgid "pid"
-msgstr ""
-
-#: src/pv/transfer.c:341
-msgid "read failed"
-msgstr "read-Aufruf fehlgeschlagen"
-
-#: src/pv/transfer.c:359
-msgid "warning: read errors detected"
-msgstr "warnung: lesefehler erkannt"
-
-#: src/pv/transfer.c:374
-msgid "file is not seekable"
-msgstr "datei ist nicht durchsuchbar"
-
-#: src/pv/transfer.c:437
-msgid "failed to seek past error"
-msgstr "konnte den Fehler nicht überwinden"
-
-#: src/pv/transfer.c:456
-msgid "skipped past read error"
-msgstr "über den Lesefehler hinaus verschoben"
-
-#: src/pv/transfer.c:458 src/pv/display.c:687
-msgid "B"
-msgstr "B"
-
-#: src/pv/transfer.c:631
-msgid "write failed"
-msgstr "write-Aufruf fehlgeschlagen"
-
-#: src/pv/transfer.c:679 src/pv/display.c:618
-msgid "buffer allocation failed"
-msgstr "Puffer konnte nicht allokiert werden"
-
-#: src/pv/transfer.c:770
-msgid "select call failed"
-msgstr "select-Aufruf fehlgeschlagen"
-
-#: src/pv/state.c:25
-msgid "history structure allocation failed"
-msgstr ""
-
-#: src/pv/state.c:55
-msgid "none"
-msgstr ""
-
-#: src/pv/display.c:151
-msgid "yzafpnum kMGTPEZY"
-msgstr ""
-
-#: src/pv/display.c:156
-msgid "yzafpnum KMGTPEZY"
-msgstr ""
-
-#: src/pv/display.c:683
-msgid "b"
-msgstr ""
-
-#: src/pv/display.c:738 src/pv/display.c:752
-msgid "b/s"
-msgstr ""
-
-#: src/pv/display.c:742 src/pv/display.c:757
-msgid "/s"
-msgstr ""
-
-#: src/pv/display.c:742 src/pv/display.c:758
-msgid "B/s"
-msgstr ""
-
-#: src/pv/display.c:793 src/pv/display.c:798 src/pv/display.c:860
-msgid "ETA"
-msgstr "ETA"
-
-#: src/pv/watchpid.c:81 src/pv/watchpid.c:95 src/pv/watchpid.c:106
-#: src/pv/watchpid.c:170 src/pv/watchpid.c:180 src/pv/watchpid.c:194
-msgid "fd"
-msgstr ""
-
-#: src/pv/watchpid.c:109 src/pv/watchpid.c:197
-msgid "not a regular file or block device"
-msgstr "keine normale Datei oder Blockgerät"
-
-#: src/main/version.c:17
-#, c-format
-msgid "%s %s - Copyright %s %s"
-msgstr "%s %s - Copyright(C) %s %s"
-
-#: src/main/version.c:20
-#, c-format
-msgid "Web site: %s"
-msgstr "Web-Site: %s"
-
-#: src/main/version.c:23
-msgid ""
-"This program is free software, and is being distributed under the\n"
-"terms of the Artistic License 2.0."
-msgstr ""
-"Dieses Programm ist freie Software und wird unter den Bedingungen\n"
-"der Artistic License verbreitet."
-
-#: src/main/version.c:28
-msgid ""
-"This program is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
-msgstr ""
-"Dieses Programm wird in der Hoffnung verbreitet, dass es nützlich sein "
-"wird,\n"
-"aber OHNE JEGLICHE GARANTIE; ohne die implizite Garantie von\n"
-"MARKTGÄNGIGKEIT oder EIGNUNG FÜR EINEN BESTIMMTEN ZWECK."
-
-#: src/main/help.c:31
+#: src/main/help.c:284
 msgid "show progress bar"
 msgstr "Fortschritts-Anzeige"
 
-#: src/main/help.c:33
+#: src/main/help.c:287
 msgid "show elapsed time"
 msgstr "zeige die verstrichene Zeit an"
 
-#: src/main/help.c:35
+#: src/main/help.c:290
 msgid "show estimated time of arrival (completion)"
 msgstr "zeige die erwartete Zeit bis zum Ende an"
 
-#: src/main/help.c:38
+#: src/main/help.c:293
 msgid "show absolute estimated time of arrival (completion)"
 msgstr "zeige die absolute geschätzte Zeit bis zur Fertigstellung"
 
-#: src/main/help.c:40
+#: src/main/help.c:296
 msgid "show data transfer rate counter"
 msgstr "zeige die Datentransferrate an"
 
-#: src/main/help.c:42
+#: src/main/help.c:299
 msgid "show data transfer average rate counter"
 msgstr ""
 
-#: src/main/help.c:43 src/main/help.c:63 src/main/help.c:71
+#: src/main/help.c:301 src/main/help.c:332 src/main/help.c:344
 msgid "SEC"
 msgstr ""
 
-#: src/main/help.c:45
+#: src/main/help.c:302
 msgid "compute average rate over past SEC seconds (default 30s)"
 msgstr ""
 
-#: src/main/help.c:47
+#: src/main/help.c:305
 msgid "show number of bytes transferred"
 msgstr "zeige die Anzahl von Bytes, die transferiert worden sind"
 
-#: src/main/help.c:49
+#: src/main/help.c:308
 msgid "show number of bits transferred"
 msgstr ""
 
-#: src/main/help.c:51
+#: src/main/help.c:311
+msgid "treat suffixes as multiples of 1000 rather than 1024"
+msgstr ""
+
+#: src/main/help.c:314
 msgid "show percentage of transfer buffer in use"
 msgstr "zeige, wie viel Prozent des Übertragungsbuffers in Benutzung sind"
 
-#: src/main/help.c:52
+#: src/main/help.c:316
 msgid "NUM"
 msgstr ""
 
-#: src/main/help.c:53
+#: src/main/help.c:317
 msgid "show NUM bytes last written"
 msgstr "NUM zeige die zuletzt geschriebenen NUM Bytes"
 
-#: src/main/help.c:54
+#: src/main/help.c:319
 msgid "FORMAT"
 msgstr ""
 
-#: src/main/help.c:55
+#: src/main/help.c:320
 msgid "set output format to FORMAT"
 msgstr "setze das Ausgabeformat auf FORMAT"
 
-#: src/main/help.c:57
+#: src/main/help.c:323
 msgid "output percentages, not visual information"
 msgstr "Ausgabe von Prozent-Angaben statt visueller Darstellung"
 
-#: src/main/help.c:59
+#: src/main/help.c:326
 msgid "do not output any transfer information at all"
 msgstr "sämtliche Transferinformationen unterdrücken"
 
-#: src/main/help.c:62
+#: src/main/help.c:330
 msgid "display nothing until first byte transferred"
 msgstr "keine Ausgabe bevor das erste Byte übertragen wurde"
 
-#: src/main/help.c:64
+#: src/main/help.c:333
 msgid "display nothing until SEC seconds have passed"
 msgstr "SEC nichts anzeigen, bis SEC Sekunden vergangen sind"
 
-#: src/main/help.c:65
+#: src/main/help.c:335
 msgid "SIZE"
 msgstr ""
 
-#: src/main/help.c:66
+#: src/main/help.c:336
 msgid "set estimated data size to SIZE bytes"
 msgstr "setze erwartete Datenlänge auf SIZE Byte"
 
-#: src/main/help.c:68
+#: src/main/help.c:339
 msgid "count lines instead of bytes"
 msgstr "zähle Zeilen anstelle von Bytes"
 
-#: src/main/help.c:70
+#: src/main/help.c:342
 msgid "lines are null-terminated"
 msgstr "Zeilen sind nullterminiert"
 
-#: src/main/help.c:72
+#: src/main/help.c:345
 msgid "update every SEC seconds"
 msgstr "aktualisiere Ausgabe nach SEC Sekunden Intervall"
 
-#: src/main/help.c:73
+#: src/main/help.c:347
 msgid "WIDTH"
 msgstr ""
 
-#: src/main/help.c:74
+#: src/main/help.c:348
 msgid "assume terminal is WIDTH characters wide"
 msgstr "setze Terminal-Breite auf WIDTH Zeichen"
 
-#: src/main/help.c:75
+#: src/main/help.c:350
 msgid "HEIGHT"
 msgstr ""
 
-#: src/main/help.c:76
+#: src/main/help.c:351
 msgid "assume terminal is HEIGHT rows high"
 msgstr "setze Terminal-Höhe auf HEIGHT Zeichen"
 
-#: src/main/help.c:77
+#: src/main/help.c:353
 msgid "NAME"
 msgstr ""
 
-#: src/main/help.c:78
+#: src/main/help.c:354
 msgid "prefix visual information with NAME"
 msgstr "setze den NAMEn für visuelle Darstellung"
 
-#: src/main/help.c:80
+#: src/main/help.c:357
 msgid "output even if standard error is not a terminal"
 msgstr ""
 "Ausgabe auch dann erzwingen, wenn der Fehlerausgabe-Kanal kein Terminal ist"
 
-#: src/main/help.c:82
+#: src/main/help.c:360
 msgid "use cursor positioning escape sequences"
 msgstr "benutze Escape-Sequenzen zur Cursor-Positionierung"
 
-#: src/main/help.c:84
+#: src/main/help.c:363
 msgid "RATE"
 msgstr ""
 
-#: src/main/help.c:85
+#: src/main/help.c:364
 msgid "limit transfer to RATE bytes per second"
 msgstr "beschränke die Transferrate auf RATE Byte pro Sekunde"
 
-#: src/main/help.c:86
+#: src/main/help.c:366 src/main/help.c:375
 msgid "BYTES"
 msgstr ""
 
-#: src/main/help.c:87
+#: src/main/help.c:367
 msgid "use a buffer size of BYTES"
 msgstr "BYTES benutze einen Puffer in der Größe von BYTES"
 
-#: src/main/help.c:89
+#: src/main/help.c:370
 msgid "never use splice(), always use read/write"
 msgstr "anstelle von splice() immer read/write benutzen"
 
-#: src/main/help.c:91
+#: src/main/help.c:373
 msgid "skip read errors in input"
 msgstr "Lesefehler in der Eingabe nicht beachten"
 
-#: src/main/help.c:93
+#: src/main/help.c:376
+msgid "skip errors in BYTES blocks at a time"
+msgstr ""
+
+#: src/main/help.c:379
 msgid "stop after --size bytes have been transferred"
 msgstr "anhalten, nachdem --size Bytes übertragen wurden"
 
-#: src/main/help.c:95
+#: src/main/help.c:382
+msgid "flush cache to disk after every write"
+msgstr ""
+
+#: src/main/help.c:385
+msgid "use direct I/O to bypass cache"
+msgstr ""
+
+#: src/main/help.c:388
+msgid "discard input instead of writing to output"
+msgstr ""
+
+#: src/main/help.c:391
 msgid "PID"
 msgstr ""
 
-#: src/main/help.c:96
+#: src/main/help.c:392
 msgid "update settings of process PID"
 msgstr "Einstellungen der Prozess-PID updaten"
 
-#: src/main/help.c:99
+#: src/main/help.c:396 src/main/help.c:411
 msgid "FILE"
 msgstr ""
 
-#: src/main/help.c:100
+#: src/main/help.c:397
 msgid "save process ID in FILE"
 msgstr "Prozess-ID in FILE speichern"
 
-#: src/main/help.c:102
+#: src/main/help.c:400
 msgid "PID[:FD]"
 msgstr ""
 
-#: src/main/help.c:103
+#: src/main/help.c:401
 msgid "watch file FD opened by process PID"
 msgstr "die vom Prozess PID geöffnete Datei FD beobachten"
 
-#: src/main/help.c:106
+#: src/main/help.c:405
 msgid "show this help and exit"
 msgstr "zeige diese Hilfe und beende"
 
-#: src/main/help.c:108
+#: src/main/help.c:408
 msgid "show version information and exit"
 msgstr "zeige Versionsinformationen und beende"
 
-#: src/main/help.c:114
+#: src/main/help.c:412
+msgid "write debug logs to FILE"
+msgstr ""
+
+#: src/main/help.c:437
 #, c-format
 msgid "Usage: %s [OPTION] [FILE]..."
 msgstr "Syntax: %s [OPTION] [DATEI]..."
 
-#: src/main/help.c:117
+#: src/main/help.c:448
 msgid ""
-"Concatenate FILE(s), or standard input, to standard output,\n"
-"with monitoring."
+"Concatenate FILE(s), or standard input, to standard output, with monitoring."
 msgstr ""
-"Verbindet DATEI(en) oder den Standard-Eingabe-Kanal mit dem\n"
-"Standard-Ausgabe-Kanal und misst den Datenstrom."
+"Verbindet DATEI(en) oder den Standard-Eingabe-Kanal mit dem Standard-Ausgabe-"
+"Kanal und misst den Datenstrom."
 
-#: src/main/help.c:212
-msgid ""
-"Debugging is enabled; export the DEBUG environment variable to define the\n"
-"output filename.\n"
-msgstr ""
-"Das Debuggen ist aktiviert. Exportieren Sie die Umgebungsvariable DEBUG,\n"
-"um den Ausgabedateinamen zu definieren.\n"
-
-#: src/main/help.c:216
+#: src/main/help.c:585
 #, c-format
-msgid "Please report any bugs to %s."
-msgstr "Bitte senden Sie Fehlerberichte an %s."
+msgid "Please report any bugs to: %s"
+msgstr "Bitte senden Sie Fehlerberichte an %s"
 
 #: src/main/main.c:74
 msgid "state allocation failed"
 msgstr "Zustandszuweisung fehlgeschlagen"
 
-#: src/main/main.c:248
-msgid "failed to read terminal attributes"
-msgstr ""
-
-#: src/main/remote.c:221
-msgid "message not received"
-msgstr "Nachricht nicht empfangen"
-
-#: src/main/remote.c:328
-msgid "IPC not supported on this system"
-msgstr "IPC wird auf diesem System nicht unterstützt"
-
-#: src/main/options.c:102
+#: src/main/options.c:174
 msgid "option structure allocation failed"
 msgstr "`option' konnte nicht allokiert werden"
 
-#: src/main/options.c:116
+#: src/main/options.c:193
 msgid "option structure argv allocation failed"
 msgstr "`option' (argv) konnte nicht allokiert werden"
 
-#: src/main/options.c:160
+#: src/main/options.c:255
 msgid "integer argument expected"
 msgstr "Ganzzahliges Argument erwartet"
 
-#: src/main/options.c:171
+#: src/main/options.c:266
 msgid "numeric argument expected"
 msgstr "numerisches Argument erwartet"
 
-#: src/main/options.c:182
+#: src/main/options.c:277
 msgid "process ID or pid:fd pair expected"
 msgstr "Prozess-ID oder PID:FD-Paar erwartet"
 
-#: src/main/options.c:189
+#: src/main/options.c:284
 msgid "invalid process ID"
 msgstr "ungültige Prozess-ID"
 
-#: src/main/options.c:355
+#: src/main/options.c:388 src/pv/file.c:323
+msgid "failed to stat file"
+msgstr "Dateiinformationen konnten nicht gelesen werden"
+
+#: src/main/options.c:491
 #, c-format
 msgid "Try `%s --help' for more information."
 msgstr "`%s --help' zeigt weitere Informationen an."
 
-#: src/main/options.c:359
+#: src/main/options.c:493
 #, c-format
 msgid "Try `%s -h' for more information."
 msgstr "`%s -h' zeigt weitere Informationen an."
 
-#: src/main/options.c:375
+#: src/main/options.c:524
 msgid ""
 "cannot use line mode or transfer modifier options when watching file "
 "descriptors"
@@ -450,22 +300,191 @@ msgstr ""
 "Beim Anzeigen von Dateideskriptoren können keine Optionen für den "
 "Zeilenmodus oder den Übertragungsmodifikator verwendet werden"
 
-#: src/main/options.c:383
+#: src/main/options.c:533
 msgid "cannot use cursor positioning when watching file descriptors"
 msgstr ""
 "Beim Anzeigen von Dateideskriptoren können keine Zeilenmodus- oder "
 "Übertragungsmodifikatoroptionen verwendet werden."
 
-#: src/main/options.c:391
+#: src/main/options.c:542
 msgid "cannot use remote control when watching file descriptors"
 msgstr ""
 "kann keine Fernbedienung verwenden, wenn Dateideskriptoren angezeigt werden"
 
-#: src/main/options.c:399
+#: src/main/options.c:551
 msgid "cannot transfer files when watching file descriptors"
 msgstr ""
 "Dateien können beim Betrachten von Dateideskriptoren nicht übertragen werden"
 
-#: src/main/options.c:407
+#: src/main/options.c:566
 msgid "not available on systems without /proc/self/fdinfo"
 msgstr "Nicht verfügbar auf Systemen ohne /proc/self/fdinfo"
+
+#: src/main/remote.c:302
+msgid "message not received"
+msgstr "Nachricht nicht empfangen"
+
+#: src/main/remote.c:429
+msgid "SA_SIGINFO not supported on this system"
+msgstr "SA_SIGINFO wird auf diesem System nicht unterstützt"
+
+#: src/main/version.c:28
+msgid "License: GPLv3+ <https://www.gnu.org/licenses/gpl-3.0.html>"
+msgstr ""
+
+#: src/main/version.c:29
+msgid "This is free software: you are free to change and redistribute it."
+msgstr ""
+
+#: src/main/version.c:30
+msgid "There is NO WARRANTY, to the extent permitted by law."
+msgstr ""
+
+#: src/main/version.c:32
+msgid "Project web site"
+msgstr ""
+
+#: src/pv/cursor.c:87
+msgid "failed to get terminal name"
+msgstr "Terminalname konnte nicht gelesen werden"
+
+#: src/pv/cursor.c:132
+msgid "failed to open lock file"
+msgstr "Sperrdatei konnte nicht geöffnet werden"
+
+#: src/pv/cursor.c:165
+msgid "lock attempt failed"
+msgstr "Sperrversuch fehlgeschlagen"
+
+#: src/pv/cursor.c:426
+msgid "failed to open terminal"
+msgstr "Terminal konnte nicht geöffnet werden"
+
+#: src/pv/display.c:193
+msgid "yzafpnum kMGTPEZY"
+msgstr ""
+
+#: src/pv/display.c:211
+msgid "yzafpnum KMGTPEZY"
+msgstr ""
+
+#: src/pv/display.c:750 src/pv/transfer.c:954
+msgid "buffer allocation failed"
+msgstr "Puffer konnte nicht allokiert werden"
+
+#: src/pv/display.c:856
+msgid "b"
+msgstr ""
+
+#: src/pv/display.c:859 src/pv/transfer.c:596
+msgid "B"
+msgstr "B"
+
+#: src/pv/display.c:900 src/pv/display.c:916
+msgid "b/s"
+msgstr ""
+
+#: src/pv/display.c:905 src/pv/display.c:920
+msgid "/s"
+msgstr ""
+
+#: src/pv/display.c:905 src/pv/display.c:920
+msgid "B/s"
+msgstr ""
+
+#: src/pv/display.c:947 src/pv/display.c:951 src/pv/display.c:1017
+msgid "ETA"
+msgstr "ETA"
+
+#: src/pv/file.c:148
+msgid "failed to seek to start of output"
+msgstr "Konnte nicht versuchen, die Ausgabe zu starten"
+
+#: src/pv/file.c:293
+msgid "failed to close file"
+msgstr "Datei konnte nicht geschlossen werden"
+
+#: src/pv/file.c:316
+msgid "failed to read file"
+msgstr "Datei konnte nicht gelesen werden"
+
+#: src/pv/file.c:331
+msgid "failed to stat output file"
+msgstr "Dateiinformationen für Ausgabe-Datei konnten nicht gelesen werden"
+
+#: src/pv/file.c:353
+msgid "input file is output file"
+msgstr "Eingabe-Datei ist Ausgabe-Datei"
+
+#: src/pv/file.c:411
+msgid "(none)"
+msgstr ""
+
+#: src/pv/file.c:413
+msgid "(stdin)"
+msgstr ""
+
+#: src/pv/loop.c:570 src/pv/loop.c:621 src/pv/loop.c:662 src/pv/watchpid.c:99
+#: src/pv/watchpid.c:109 src/pv/watchpid.c:120 src/pv/watchpid.c:128
+#: src/pv/watchpid.c:165 src/pv/watchpid.c:184 src/pv/watchpid.c:192
+#: src/pv/watchpid.c:202 src/pv/watchpid.c:293 src/pv/watchpid.c:301
+#: src/pv/watchpid.c:377 src/pv/watchpid.c:398
+msgid "pid"
+msgstr ""
+
+#: src/pv/state.c:36
+msgid "history structure allocation failed"
+msgstr ""
+
+#: src/pv/state.c:391 src/pv/state.c:402
+msgid "file list allocation failed"
+msgstr ""
+
+#: src/pv/transfer.c:458
+msgid "read failed"
+msgstr "read-Aufruf fehlgeschlagen"
+
+#: src/pv/transfer.c:481
+msgid "warning: read errors detected"
+msgstr "warnung: lesefehler erkannt"
+
+#: src/pv/transfer.c:497
+msgid "file is not seekable"
+msgstr "datei ist nicht durchsuchbar"
+
+#: src/pv/transfer.c:575
+msgid "failed to seek past error"
+msgstr "konnte den Fehler nicht überwinden"
+
+#: src/pv/transfer.c:595
+msgid "skipped past read error"
+msgstr "über den Lesefehler hinaus verschoben"
+
+#: src/pv/transfer.c:635
+msgid "no transfer buffer allocated"
+msgstr ""
+
+#: src/pv/transfer.c:676
+msgid "failed to set interval timer"
+msgstr ""
+
+#: src/pv/transfer.c:694
+msgid "failed to clear interval timer"
+msgstr ""
+
+#: src/pv/transfer.c:818
+msgid "write failed"
+msgstr "write-Aufruf fehlgeschlagen"
+
+#: src/pv/transfer.c:1051
+msgid "select call failed"
+msgstr "select-Aufruf fehlgeschlagen"
+
+#: src/pv/watchpid.c:109 src/pv/watchpid.c:121 src/pv/watchpid.c:130
+#: src/pv/watchpid.c:184 src/pv/watchpid.c:193 src/pv/watchpid.c:204
+msgid "fd"
+msgstr ""
+
+#: src/pv/watchpid.c:130 src/pv/watchpid.c:204
+msgid "not a regular file or block device"
+msgstr "keine normale Datei oder Blockgerät"

po/fr.po

@@ -1,7 +1,8 @@
 msgid ""
 msgstr ""
-"Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2023-07-17 21:52+0100\n"
+"Report-Msgid-Bugs-To: pv@ivarch.com\n"
+"POT-Creation-Date: 2024-04-21 14:15+0100\n"
+"Language: fr\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Date: 1999-06-01 15:18:29+0100\n"
 "From: Andrew Wood <ivarch@ubik>\n"
@@ -19,429 +20,280 @@ msgstr ""
 "nls/intl/textdomain.c src/nls/intl-cat/cat-compat.c src/nls/intl-gett/intl-"
 "compat.c\n"
 
-#: src/pv/cursor.c:80
-msgid "failed to get terminal name"
-msgstr "échec de lecture du nom du terminal"
-
-#: src/pv/cursor.c:125
-msgid "failed to open lock file"
-msgstr "échec de l'ouverture du fichier de verrouillage"
-
-#: src/pv/cursor.c:159
-msgid "lock attempt failed"
-msgstr "tentative de verrouillage échoué"
-
-#: src/pv/cursor.c:409
-msgid "failed to open terminal"
-msgstr "l'ouverture du terminal a échoué"
-
-#: src/pv/file.c:119
-msgid "failed to seek to start of output"
-msgstr "ne peut pas passer au début de la sortie"
-
-#: src/pv/file.c:215
-msgid "failed to close file"
-msgstr "la fermeture du fichier a échoué"
-
-#: src/pv/file.c:238
-msgid "failed to read file"
-msgstr "la lecture du fichier a échoué"
-
-#: src/pv/file.c:248 src/main/options.c:288
-msgid "failed to stat file"
-msgstr "échec à statuer sur le fichier"
-
-#: src/pv/file.c:257
-msgid "failed to stat output file"
-msgstr "échec à statuer sur le fichier de sortie"
-
-#: src/pv/file.c:280
-msgid "input file is output file"
-msgstr "fichiers d'entré et de sortie sont les mêmes"
-
-#: src/pv/loop.c:527 src/pv/loop.c:597 src/pv/loop.c:649 src/pv/watchpid.c:68
-#: src/pv/watchpid.c:79 src/pv/watchpid.c:93 src/pv/watchpid.c:104
-#: src/pv/watchpid.c:145 src/pv/watchpid.c:168 src/pv/watchpid.c:178
-#: src/pv/watchpid.c:192 src/pv/watchpid.c:285 src/pv/watchpid.c:294
-#: src/pv/watchpid.c:332 src/pv/watchpid.c:349
-msgid "pid"
-msgstr ""
-
-#: src/pv/transfer.c:341
-msgid "read failed"
-msgstr "la lecture a échoué"
-
-#: src/pv/transfer.c:359
-msgid "warning: read errors detected"
-msgstr "avertissement: erreurs de lecture détectées"
-
-#: src/pv/transfer.c:374
-msgid "file is not seekable"
-msgstr "ne peut pas se déplacer dans le fichier"
-
-#: src/pv/transfer.c:437
-msgid "failed to seek past error"
-msgstr "n'a pas réussi à dépasser l'erreur"
-
-#: src/pv/transfer.c:456
-msgid "skipped past read error"
-msgstr "erreur de lecture dépassée"
-
-#: src/pv/transfer.c:458 src/pv/display.c:687
-msgid "B"
-msgstr "O"
-
-#: src/pv/transfer.c:631
-msgid "write failed"
-msgstr "l'écriture a échoué"
-
-#: src/pv/transfer.c:679 src/pv/display.c:618
-msgid "buffer allocation failed"
-msgstr "l'allocation de mémoire tampon a échoué"
-
-#: src/pv/transfer.c:770
-msgid "select call failed"
-msgstr "appel de sélection a échoué"
-
-#: src/pv/state.c:25
-msgid "history structure allocation failed"
-msgstr ""
-
-#: src/pv/state.c:55
-msgid "none"
-msgstr ""
-
-#: src/pv/display.c:151
-msgid "yzafpnum kMGTPEZY"
-msgstr ""
-
-#: src/pv/display.c:156
-msgid "yzafpnum KMGTPEZY"
-msgstr ""
-
-#: src/pv/display.c:683
-msgid "b"
-msgstr ""
-
-#: src/pv/display.c:738 src/pv/display.c:752
-msgid "b/s"
-msgstr ""
-
-#: src/pv/display.c:742 src/pv/display.c:757
-msgid "/s"
-msgstr "/s"
-
-#: src/pv/display.c:742 src/pv/display.c:758
-msgid "B/s"
-msgstr "O/s"
-
-#: src/pv/display.c:793 src/pv/display.c:798 src/pv/display.c:860
-msgid "ETA"
-msgstr "ETA"
-
-#: src/pv/watchpid.c:81 src/pv/watchpid.c:95 src/pv/watchpid.c:106
-#: src/pv/watchpid.c:170 src/pv/watchpid.c:180 src/pv/watchpid.c:194
-msgid "fd"
-msgstr ""
-
-#: src/pv/watchpid.c:109 src/pv/watchpid.c:197
-msgid "not a regular file or block device"
-msgstr "pas un fichier ordinaire ou un périphérique de bloc"
-
-#: src/main/version.c:17
-#, c-format
-msgid "%s %s - Copyright %s %s"
-msgstr "%s %s - Copyright(C) %s %s"
-
-#: src/main/version.c:20
-#, c-format
-msgid "Web site: %s"
-msgstr "Site Web: %s"
-
-#: src/main/version.c:23
-msgid ""
-"This program is free software, and is being distributed under the\n"
-"terms of the Artistic License 2.0."
-msgstr ""
-"Ce programme est un logiciel libre et est distribué sous les termes\n"
-"anglophone de la Licence Artistique 2.0 (Artistic License 2.0)."
-
-#: src/main/version.c:28
-msgid ""
-"This program is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
-msgstr ""
-"Ce programme est distribué dans l'espoir qu'il sera utile, mais\n"
-"SANS GARANTIE AUCUNE; ni même de garantie sous-entendu que le\n"
-"programme soit COMMERCIALISABLE ou APPLICABLE À UNE TÂCHE\n"
-"PARTICULIÈRE."
-
-#: src/main/help.c:31
+#: src/main/help.c:284
 msgid "show progress bar"
-msgstr "affiche la barre de progression"
+msgstr "afficher la barre de progression"
 
-#: src/main/help.c:33
+#: src/main/help.c:287
 msgid "show elapsed time"
-msgstr "affiche le temps écoulé"
+msgstr "afficher le temps écoulé"
 
-#: src/main/help.c:35
+#: src/main/help.c:290
 msgid "show estimated time of arrival (completion)"
-msgstr "affiche l'heure approximative de l'achèvement de la tâche"
+msgstr "afficher l'heure approximative de l'achèvement de la tâche"
 
-#: src/main/help.c:38
+#: src/main/help.c:293
 msgid "show absolute estimated time of arrival (completion)"
-msgstr "affiche l'heure absolute de l'achèvement de la tâche"
+msgstr "afficher l'heure absolute de l'achèvement de la tâche"
 
-#: src/main/help.c:40
+#: src/main/help.c:296
 msgid "show data transfer rate counter"
-msgstr "affiche le taux de tranfert des données"
+msgstr "afficher le taux de tranfert des données"
 
-#: src/main/help.c:42
+#: src/main/help.c:299
 msgid "show data transfer average rate counter"
 msgstr "afficher le compteur de taux moyen de transfert de données"
 
-#: src/main/help.c:43 src/main/help.c:63 src/main/help.c:71
+#: src/main/help.c:301 src/main/help.c:332 src/main/help.c:344
 msgid "SEC"
 msgstr "SEC"
 
-#: src/main/help.c:45
+#: src/main/help.c:302
 msgid "compute average rate over past SEC seconds (default 30s)"
 msgstr ""
+"calculer le taux moyen d'après les SEC dernières secondes (30s par défaut)"
 
-#: src/main/help.c:47
+#: src/main/help.c:305
 msgid "show number of bytes transferred"
-msgstr "affiche le nombre d'octets transférés"
+msgstr "afficher le nombre d'octets transférés"
 
-#: src/main/help.c:49
+#: src/main/help.c:308
 msgid "show number of bits transferred"
+msgstr "afficher le nombre de bits transférés"
+
+#: src/main/help.c:311
+msgid "treat suffixes as multiples of 1000 rather than 1024"
 msgstr ""
 
-#: src/main/help.c:51
+#: src/main/help.c:314
 msgid "show percentage of transfer buffer in use"
 msgstr "afficher le pourcentage de tampon de transfert utilisé"
 
-#: src/main/help.c:52
+#: src/main/help.c:316
 msgid "NUM"
-msgstr ""
+msgstr "NUM"
 
-#: src/main/help.c:53
+#: src/main/help.c:317
 msgid "show NUM bytes last written"
-msgstr "affiche NUM octets pour la dernière fois écrits"
+msgstr "afficher les derniers NUM octets écrits"
 
-#: src/main/help.c:54
+#: src/main/help.c:319
 msgid "FORMAT"
-msgstr ""
+msgstr "FORMAT"
 
-#: src/main/help.c:55
+#: src/main/help.c:320
 msgid "set output format to FORMAT"
 msgstr "définir le format de sortie sur FORMAT"
 
-#: src/main/help.c:57
+#: src/main/help.c:323
 msgid "output percentages, not visual information"
-msgstr "imprime en pourcentage, pas les informations visuelles"
+msgstr "imprimer en pourcentage plutôt que des informations visuelles"
 
-#: src/main/help.c:59
+#: src/main/help.c:326
 msgid "do not output any transfer information at all"
 msgstr "n'afficher aucune information de transfert"
 
-#: src/main/help.c:62
+#: src/main/help.c:330
 msgid "display nothing until first byte transferred"
 msgstr "ne rien afficher avant qu'au moins un octet soit tranféré"
 
-#: src/main/help.c:64
+#: src/main/help.c:333
 msgid "display nothing until SEC seconds have passed"
-msgstr "n'afficher rien jusqu'à ce que SEC secondes se soient écoulées"
+msgstr "ne rien afficher jusqu'à ce que SEC secondes se soient écoulées"
 
-#: src/main/help.c:65
+#: src/main/help.c:335
 msgid "SIZE"
 msgstr "TAILLE"
 
-#: src/main/help.c:66
+#: src/main/help.c:336
 msgid "set estimated data size to SIZE bytes"
-msgstr "ajuste la taille estimée des données à TAILLE octets"
+msgstr "ajuster la taille estimée des données à TAILLE octets"
 
-#: src/main/help.c:68
+#: src/main/help.c:339
 msgid "count lines instead of bytes"
-msgstr "compte les lignes au lieu des octets"
+msgstr "compter les lignes au lieu des octets"
 
-#: src/main/help.c:70
+#: src/main/help.c:342
 msgid "lines are null-terminated"
-msgstr "les lignes sont terminées par un nul"
+msgstr "les lignes sont terminées par un caractère nul"
 
-#: src/main/help.c:72
+#: src/main/help.c:345
 msgid "update every SEC seconds"
-msgstr "mise-à-jour toute les SEC secondes"
+msgstr "mettre à jour toutes les SEC secondes"
 
-#: src/main/help.c:73
+#: src/main/help.c:347
 msgid "WIDTH"
 msgstr "LARGEUR"
 
-#: src/main/help.c:74
+#: src/main/help.c:348
 msgid "assume terminal is WIDTH characters wide"
 msgstr "présumer la largeur du terminal à LARGEUR caractères"
 
-#: src/main/help.c:75
+#: src/main/help.c:350
 msgid "HEIGHT"
 msgstr "HAUTEUR"
 
-#: src/main/help.c:76
+#: src/main/help.c:351
 msgid "assume terminal is HEIGHT rows high"
 msgstr "présumer la hauteur du terminal à HAUTEUR lignes"
 
-#: src/main/help.c:77
+#: src/main/help.c:353
 msgid "NAME"
 msgstr "NOM"
 
-#: src/main/help.c:78
+#: src/main/help.c:354
 msgid "prefix visual information with NAME"
 msgstr "préfixer les informations visuelles avec NOM"
 
-#: src/main/help.c:80
+#: src/main/help.c:357
 msgid "output even if standard error is not a terminal"
-msgstr "imprime vers la sortie d'erreur même si ce n'est pas un terminal"
+msgstr ""
+"imprimer vers la sortie d'erreur standard même si ce n'est pas un terminal"
 
-#: src/main/help.c:82
+#: src/main/help.c:360
 msgid "use cursor positioning escape sequences"
 msgstr "utiliser les séquences d'échappements de positionnement de curseur"
 
-#: src/main/help.c:84
+#: src/main/help.c:363
 msgid "RATE"
 msgstr "TAUX"
 
-#: src/main/help.c:85
+#: src/main/help.c:364
 msgid "limit transfer to RATE bytes per second"
-msgstr "limite le taux de transfer à TAUX octets par seconde"
+msgstr "limite le taux de transfert à TAUX octets par seconde"
 
-#: src/main/help.c:86
+#: src/main/help.c:366 src/main/help.c:375
 msgid "BYTES"
 msgstr "OCTETS"
 
-#: src/main/help.c:87
+#: src/main/help.c:367
 msgid "use a buffer size of BYTES"
 msgstr "Utiliser une mémoire tampon de OCTETS octets"
 
-#: src/main/help.c:89
+#: src/main/help.c:370
 msgid "never use splice(), always use read/write"
-msgstr "n'utilisez jamais splice(), utilisez toujours read/write"
+msgstr "ne jamais utiliser splice(), toujours utiliser read/write"
 
-#: src/main/help.c:91
+#: src/main/help.c:373
 msgid "skip read errors in input"
 msgstr "ignorer les erreurs de lecture dans l'entrée"
 
-#: src/main/help.c:93
+#: src/main/help.c:376
+msgid "skip errors in BYTES blocks at a time"
+msgstr "ignorer les erreurs dans OCTETS blocs à la fois"
+
+#: src/main/help.c:379
 msgid "stop after --size bytes have been transferred"
 msgstr "arrêter après le transfert de --size octets"
 
-#: src/main/help.c:95
+#: src/main/help.c:382
+msgid "flush cache to disk after every write"
+msgstr "vider le cache sur le disque après chaque écriture"
+
+#: src/main/help.c:385
+msgid "use direct I/O to bypass cache"
+msgstr "utiliser les E/S directes pour contourner le cache"
+
+#: src/main/help.c:388
+msgid "discard input instead of writing to output"
+msgstr "rejeter l'entrée au lieu de l'écrire vers la sortie"
+
+#: src/main/help.c:391
 msgid "PID"
 msgstr "PID"
 
-#: src/main/help.c:96
+#: src/main/help.c:392
 msgid "update settings of process PID"
-msgstr "mettre-à-jour la configuration du processus PID"
+msgstr "mettre à jour la configuration du processus PID"
 
-#: src/main/help.c:99
+#: src/main/help.c:396 src/main/help.c:411
 msgid "FILE"
-msgstr ""
+msgstr "FICHIER"
 
-#: src/main/help.c:100
+#: src/main/help.c:397
 msgid "save process ID in FILE"
-msgstr "enregistrer l'ID de processus dans FILE"
+msgstr "enregistrer l'ID de processus dans FICHIER"
 
-#: src/main/help.c:102
+#: src/main/help.c:400
 msgid "PID[:FD]"
-msgstr ""
+msgstr "PID[:FD]"
 
-#: src/main/help.c:103
+#: src/main/help.c:401
 msgid "watch file FD opened by process PID"
-msgstr "regarder le fichier FD ouvert par le processus PID"
+msgstr "surveiller le fichier FD ouvert par le processus PID"
 
-#: src/main/help.c:106
+#: src/main/help.c:405
 msgid "show this help and exit"
 msgstr "afficher cette aide puis quitter"
 
-#: src/main/help.c:108
+#: src/main/help.c:408
 msgid "show version information and exit"
 msgstr "afficher la version puis quitter"
 
-#: src/main/help.c:114
+#: src/main/help.c:412
+msgid "write debug logs to FILE"
+msgstr "écrire les journaux de déboggage vers FICHIER"
+
+#: src/main/help.c:437
 #, c-format
 msgid "Usage: %s [OPTION] [FILE]..."
 msgstr "Utilisation : %s [OPTIONS] [FICHIER]..."
 
-#: src/main/help.c:117
+#: src/main/help.c:448
 msgid ""
-"Concatenate FILE(s), or standard input, to standard output,\n"
-"with monitoring."
+"Concatenate FILE(s), or standard input, to standard output, with monitoring."
 msgstr ""
-"Concatène FICHIER(s), ou l'entrée standard, sur la sortie standard\n"
-"avec monitorage."
+"Concaténer FICHIER(s), ou l'entrée standard, sur la sortie standard avec "
+"monitorage."
 
-#: src/main/help.c:212
-msgid ""
-"Debugging is enabled; export the DEBUG environment variable to define the\n"
-"output filename.\n"
-msgstr ""
-"Le débogage est activé; exportez la variable d'environnement DEBUG pour\n"
-"définir le nom du fichier de sortie.\n"
-
-#: src/main/help.c:216
+#: src/main/help.c:585
 #, c-format
-msgid "Please report any bugs to %s."
-msgstr "SVP rapporter touts bogues à %s."
+msgid "Please report any bugs to: %s"
+msgstr "SVP rapporter tous bogues à %s"
 
 #: src/main/main.c:74
 msgid "state allocation failed"
 msgstr "échec de l'allocation de mémoire de condition"
 
-#: src/main/main.c:248
-msgid "failed to read terminal attributes"
-msgstr ""
-
-#: src/main/remote.c:221
-msgid "message not received"
-msgstr "message non reçu"
-
-#: src/main/remote.c:328
-msgid "IPC not supported on this system"
-msgstr "IPC non pris en charge sur ce système"
-
-#: src/main/options.c:102
+#: src/main/options.c:174
 msgid "option structure allocation failed"
-msgstr "l'allocation pour la structure d'une option a echoué"
+msgstr "l'allocation pour la structure d'une option a échoué"
 
-#: src/main/options.c:116
+#: src/main/options.c:193
 msgid "option structure argv allocation failed"
-msgstr "l'allocation pour la structure de l'option argv a echoué"
+msgstr "l'allocation pour la structure de l'option argv a échoué"
 
-#: src/main/options.c:160
+#: src/main/options.c:255
 msgid "integer argument expected"
 msgstr "Valeur entière attendue"
 
-#: src/main/options.c:171
+#: src/main/options.c:266
 msgid "numeric argument expected"
 msgstr "Valeur numérique attendue"
 
-#: src/main/options.c:182
+#: src/main/options.c:277
 msgid "process ID or pid:fd pair expected"
 msgstr "ID de processus ou paire pid:fd attendue"
 
-#: src/main/options.c:189
+#: src/main/options.c:284
 msgid "invalid process ID"
 msgstr "ID de processus non valide"
 
-#: src/main/options.c:355
+#: src/main/options.c:388 src/pv/file.c:323
+msgid "failed to stat file"
+msgstr "échec à statuer sur le fichier"
+
+#: src/main/options.c:491
 #, c-format
 msgid "Try `%s --help' for more information."
-msgstr "Essayez `%s --help' pour plus d'information."
+msgstr "Essayez `%s --help' pour plus d'informations."
 
-#: src/main/options.c:359
+#: src/main/options.c:493
 #, c-format
 msgid "Try `%s -h' for more information."
-msgstr "Essayez `%s -h' pour plus d'information."
+msgstr "Essayez `%s -h' pour plus d'informations."
 
-#: src/main/options.c:375
+#: src/main/options.c:524
 msgid ""
 "cannot use line mode or transfer modifier options when watching file "
 "descriptors"
@@ -449,24 +301,198 @@ msgstr ""
 "impossible d'utiliser le mode ligne ou les options de modificateur de "
 "transfert lors de la visualisation des descripteurs de fichiers"
 
-#: src/main/options.c:383
+#: src/main/options.c:533
 msgid "cannot use cursor positioning when watching file descriptors"
 msgstr ""
 "impossible d'utiliser le positionnement du curseur lors de la visualisation "
 "des descripteurs de fichier"
 
-#: src/main/options.c:391
+#: src/main/options.c:542
 msgid "cannot use remote control when watching file descriptors"
 msgstr ""
 "impossible d'utiliser la télécommande lors de la visualisation des "
 "descripteurs de fichiers"
 
-#: src/main/options.c:399
+#: src/main/options.c:551
 msgid "cannot transfer files when watching file descriptors"
 msgstr ""
 "impossible de transférer des fichiers lorsque vous regardez des descripteurs "
 "de fichiers"
 
-#: src/main/options.c:407
+#: src/main/options.c:566
 msgid "not available on systems without /proc/self/fdinfo"
 msgstr "non disponible sur les systèmes sans /proc/self/fdinfo"
+
+#: src/main/remote.c:302
+msgid "message not received"
+msgstr "message non reçu"
+
+#: src/main/remote.c:429
+msgid "SA_SIGINFO not supported on this system"
+msgstr "SA_SIGINFO non pris en charge sur ce système"
+
+#: src/main/version.c:28
+msgid "License: GPLv3+ <https://www.gnu.org/licenses/gpl-3.0.html>"
+msgstr "License : GPLv3+ <https://www.gnu.org/licenses/gpl-3.0.html>"
+
+#: src/main/version.c:29
+msgid "This is free software: you are free to change and redistribute it."
+msgstr ""
+"Ceci est un logiciel libre : vous êtes libre de le modifier et de le "
+"redistribuer."
+
+#: src/main/version.c:30
+msgid "There is NO WARRANTY, to the extent permitted by law."
+msgstr "Il n'y a AUCUNE GARANTIE, dans la mesure permise par la loi."
+
+#: src/main/version.c:32
+msgid "Project web site"
+msgstr "Site web du projet"
+
+#: src/pv/cursor.c:87
+msgid "failed to get terminal name"
+msgstr "échec de lecture du nom du terminal"
+
+#: src/pv/cursor.c:132
+msgid "failed to open lock file"
+msgstr "échec de l'ouverture du fichier de verrouillage"
+
+#: src/pv/cursor.c:165
+msgid "lock attempt failed"
+msgstr "échec de la tentative de verrouillage"
+
+#: src/pv/cursor.c:426
+msgid "failed to open terminal"
+msgstr "échec de l'ouverture du terminal"
+
+#: src/pv/display.c:193
+msgid "yzafpnum kMGTPEZY"
+msgstr ""
+
+#: src/pv/display.c:211
+msgid "yzafpnum KMGTPEZY"
+msgstr ""
+
+#: src/pv/display.c:750 src/pv/transfer.c:954
+msgid "buffer allocation failed"
+msgstr "échec de l'allocation de mémoire tampon"
+
+#: src/pv/display.c:856
+msgid "b"
+msgstr ""
+
+#: src/pv/display.c:859 src/pv/transfer.c:596
+msgid "B"
+msgstr "O"
+
+#: src/pv/display.c:900 src/pv/display.c:916
+msgid "b/s"
+msgstr ""
+
+#: src/pv/display.c:905 src/pv/display.c:920
+msgid "/s"
+msgstr "/s"
+
+#: src/pv/display.c:905 src/pv/display.c:920
+msgid "B/s"
+msgstr "O/s"
+
+#: src/pv/display.c:947 src/pv/display.c:951 src/pv/display.c:1017
+msgid "ETA"
+msgstr "ETA"
+
+#: src/pv/file.c:148
+msgid "failed to seek to start of output"
+msgstr "ne peut pas passer au début de la sortie"
+
+#: src/pv/file.c:293
+msgid "failed to close file"
+msgstr "la fermeture du fichier a échoué"
+
+#: src/pv/file.c:316
+msgid "failed to read file"
+msgstr "la lecture du fichier a échoué"
+
+#: src/pv/file.c:331
+msgid "failed to stat output file"
+msgstr "échec à statuer sur le fichier de sortie"
+
+#: src/pv/file.c:353
+msgid "input file is output file"
+msgstr "fichiers d'entré et de sortie sont les mêmes"
+
+#: src/pv/file.c:411
+msgid "(none)"
+msgstr "(aucun)"
+
+#: src/pv/file.c:413
+msgid "(stdin)"
+msgstr ""
+
+#: src/pv/loop.c:570 src/pv/loop.c:621 src/pv/loop.c:662 src/pv/watchpid.c:99
+#: src/pv/watchpid.c:109 src/pv/watchpid.c:120 src/pv/watchpid.c:128
+#: src/pv/watchpid.c:165 src/pv/watchpid.c:184 src/pv/watchpid.c:192
+#: src/pv/watchpid.c:202 src/pv/watchpid.c:293 src/pv/watchpid.c:301
+#: src/pv/watchpid.c:377 src/pv/watchpid.c:398
+msgid "pid"
+msgstr ""
+
+#: src/pv/state.c:36
+msgid "history structure allocation failed"
+msgstr "l'allocation de la structure de l'historique a échoué"
+
+#: src/pv/state.c:391 src/pv/state.c:402
+msgid "file list allocation failed"
+msgstr "échec de l'allocation de la liste de fichiers"
+
+#: src/pv/transfer.c:458
+msgid "read failed"
+msgstr "la lecture a échoué"
+
+#: src/pv/transfer.c:481
+msgid "warning: read errors detected"
+msgstr "avertissement : erreurs de lecture détectées"
+
+#: src/pv/transfer.c:497
+msgid "file is not seekable"
+msgstr "ne peut pas se déplacer dans le fichier"
+
+#: src/pv/transfer.c:575
+msgid "failed to seek past error"
+msgstr "n'a pas réussi à dépasser l'erreur"
+
+#: src/pv/transfer.c:595
+msgid "skipped past read error"
+msgstr "erreur de lecture dépassée"
+
+#: src/pv/transfer.c:635
+msgid "no transfer buffer allocated"
+msgstr "aucun tampon de transfert alloué"
+
+#: src/pv/transfer.c:676
+msgid "failed to set interval timer"
+msgstr ""
+
+#: src/pv/transfer.c:694
+msgid "failed to clear interval timer"
+msgstr ""
+
+#: src/pv/transfer.c:818
+msgid "write failed"
+msgstr "l'écriture a échoué"
+
+#: src/pv/transfer.c:1051
+msgid "select call failed"
+msgstr "l'appel de sélection a échoué"
+
+#: src/pv/watchpid.c:109 src/pv/watchpid.c:121 src/pv/watchpid.c:130
+#: src/pv/watchpid.c:184 src/pv/watchpid.c:193 src/pv/watchpid.c:204
+msgid "fd"
+msgstr ""
+
+#: src/pv/watchpid.c:130 src/pv/watchpid.c:204
+msgid "not a regular file or block device"
+msgstr "pas un fichier ordinaire ou un périphérique de bloc"
+
+#~ msgid "failed to set alarm signal handler"
+#~ msgstr "échec de la définition du gestionnaire de signal d'alarme"

po/pl.po

@@ -5,449 +5,477 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
-"Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2023-07-17 21:52+0100\n"
+"Report-Msgid-Bugs-To: pv@ivarch.com\n"
+"POT-Creation-Date: 2024-04-21 14:15+0100\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
+"Language: pl\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
 
-#: src/pv/cursor.c:80
-msgid "failed to get terminal name"
-msgstr ""
-
-# "Przewidywany czas ukończenia" for ETA is too long
-#: src/pv/cursor.c:125
-msgid "failed to open lock file"
-msgstr ""
-
-#: src/pv/cursor.c:159
-msgid "lock attempt failed"
-msgstr ""
-
-#: src/pv/cursor.c:409
-msgid "failed to open terminal"
-msgstr "nie udało się otworzyć terminala"
-
-#: src/pv/file.c:119
-msgid "failed to seek to start of output"
-msgstr ""
-
-# "Przewidywany czas ukończenia" for ETA is too long
-#: src/pv/file.c:215
-msgid "failed to close file"
-msgstr "nie udało się zamknąć pliku"
-
-#: src/pv/file.c:238
-msgid "failed to read file"
-msgstr "nie udało się odczytać pliku"
-
-#: src/pv/file.c:248 src/main/options.c:288
-msgid "failed to stat file"
-msgstr "nie udało się wykonać operacji stat na pliku"
-
-#: src/pv/file.c:257
-msgid "failed to stat output file"
-msgstr "nie udało się wykonać operacji stat na pliku wyjściowym"
-
-#: src/pv/file.c:280
-msgid "input file is output file"
-msgstr "plik wejściowy jest zarazem plikiem wyjściowym"
-
-#: src/pv/loop.c:527 src/pv/loop.c:597 src/pv/loop.c:649 src/pv/watchpid.c:68
-#: src/pv/watchpid.c:79 src/pv/watchpid.c:93 src/pv/watchpid.c:104
-#: src/pv/watchpid.c:145 src/pv/watchpid.c:168 src/pv/watchpid.c:178
-#: src/pv/watchpid.c:192 src/pv/watchpid.c:285 src/pv/watchpid.c:294
-#: src/pv/watchpid.c:332 src/pv/watchpid.c:349
-msgid "pid"
-msgstr ""
-
-#: src/pv/transfer.c:341
-msgid "read failed"
-msgstr "błąd odczytu"
-
-#: src/pv/transfer.c:359
-msgid "warning: read errors detected"
-msgstr ""
-
-#: src/pv/transfer.c:374
-msgid "file is not seekable"
-msgstr ""
-
-#: src/pv/transfer.c:437
-msgid "failed to seek past error"
-msgstr ""
-
-#: src/pv/transfer.c:456
-msgid "skipped past read error"
-msgstr ""
-
-#: src/pv/transfer.c:458 src/pv/display.c:687
-msgid "B"
-msgstr "B"
-
-#: src/pv/transfer.c:631
-msgid "write failed"
-msgstr "błąd zapisu"
-
-#: src/pv/transfer.c:679 src/pv/display.c:618
-msgid "buffer allocation failed"
-msgstr "nie udało się zaalokować bufora"
-
-#: src/pv/transfer.c:770
-msgid "select call failed"
-msgstr "nie udało się wywołać funkcji select"
-
-#: src/pv/state.c:25
-msgid "history structure allocation failed"
-msgstr ""
-
-#: src/pv/state.c:55
-msgid "none"
-msgstr ""
-
-#: src/pv/display.c:151
-msgid "yzafpnum kMGTPEZY"
-msgstr ""
-
-#: src/pv/display.c:156
-msgid "yzafpnum KMGTPEZY"
-msgstr ""
-
-#: src/pv/display.c:683
-msgid "b"
-msgstr ""
-
-#: src/pv/display.c:738 src/pv/display.c:752
-msgid "b/s"
-msgstr ""
-
-#: src/pv/display.c:742 src/pv/display.c:757
-msgid "/s"
-msgstr "/s"
-
-#: src/pv/display.c:742 src/pv/display.c:758
-msgid "B/s"
-msgstr "B/s"
-
-#: src/pv/display.c:793 src/pv/display.c:798 src/pv/display.c:860
-msgid "ETA"
-msgstr "ETA"
-
-#: src/pv/watchpid.c:81 src/pv/watchpid.c:95 src/pv/watchpid.c:106
-#: src/pv/watchpid.c:170 src/pv/watchpid.c:180 src/pv/watchpid.c:194
-msgid "fd"
-msgstr ""
-
-#: src/pv/watchpid.c:109 src/pv/watchpid.c:197
-msgid "not a regular file or block device"
-msgstr ""
-
-#: src/main/version.c:17
-#, c-format
-msgid "%s %s - Copyright %s %s"
-msgstr ""
-
-#: src/main/version.c:20
-#, c-format
-msgid "Web site: %s"
-msgstr "Strona WWW: %s"
-
-#: src/main/version.c:23
-msgid ""
-"This program is free software, and is being distributed under the\n"
-"terms of the Artistic License 2.0."
-msgstr ""
-
-#: src/main/version.c:28
-msgid ""
-"This program is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
-msgstr ""
-
-#: src/main/help.c:31
+#: src/main/help.c:284
 msgid "show progress bar"
 msgstr "pokaż pasek postępu"
 
-#: src/main/help.c:33
+#: src/main/help.c:287
 msgid "show elapsed time"
 msgstr "pokaż upływający czas"
 
-#: src/main/help.c:35
+#: src/main/help.c:290
 msgid "show estimated time of arrival (completion)"
 msgstr "pokaż szacowany czas ukończenia"
 
-#: src/main/help.c:38
+#: src/main/help.c:293
 msgid "show absolute estimated time of arrival (completion)"
 msgstr ""
 
-#: src/main/help.c:40
+#: src/main/help.c:296
 msgid "show data transfer rate counter"
 msgstr "pokaż licznik prędkości przesyłania"
 
-#: src/main/help.c:42
+#: src/main/help.c:299
 msgid "show data transfer average rate counter"
 msgstr ""
 
-#: src/main/help.c:43 src/main/help.c:63 src/main/help.c:71
+#: src/main/help.c:301 src/main/help.c:332 src/main/help.c:344
 msgid "SEC"
 msgstr "WARTOŚĆ"
 
-#: src/main/help.c:45
+#: src/main/help.c:302
 msgid "compute average rate over past SEC seconds (default 30s)"
 msgstr ""
 
-#: src/main/help.c:47
+#: src/main/help.c:305
 msgid "show number of bytes transferred"
 msgstr "pokaż ilość przesłanych bajtów"
 
-#: src/main/help.c:49
+#: src/main/help.c:308
 msgid "show number of bits transferred"
 msgstr ""
 
-#: src/main/help.c:51
+#: src/main/help.c:311
+msgid "treat suffixes as multiples of 1000 rather than 1024"
+msgstr ""
+
+#: src/main/help.c:314
 msgid "show percentage of transfer buffer in use"
 msgstr ""
 
-#: src/main/help.c:52
+#: src/main/help.c:316
 msgid "NUM"
 msgstr ""
 
-#: src/main/help.c:53
+#: src/main/help.c:317
 msgid "show NUM bytes last written"
 msgstr ""
 
-#: src/main/help.c:54
+#: src/main/help.c:319
 msgid "FORMAT"
 msgstr ""
 
-#: src/main/help.c:55
+#: src/main/help.c:320
 msgid "set output format to FORMAT"
 msgstr ""
 
-#: src/main/help.c:57
+#: src/main/help.c:323
 msgid "output percentages, not visual information"
 msgstr "wświetl wyjście procentowo, bez graficznej prezentacji"
 
-#: src/main/help.c:59
+#: src/main/help.c:326
 msgid "do not output any transfer information at all"
 msgstr "nie wyświetlaj żadnych informacji o przesyłaniu"
 
-#: src/main/help.c:62
+#: src/main/help.c:330
 msgid "display nothing until first byte transferred"
 msgstr "nie wyświetlaj nic aż do pierwszego przesłanego bajtu"
 
-#: src/main/help.c:64
+#: src/main/help.c:333
 msgid "display nothing until SEC seconds have passed"
 msgstr ""
 
-#: src/main/help.c:65
+#: src/main/help.c:335
 msgid "SIZE"
 msgstr "WARTOŚĆ"
 
-#: src/main/help.c:66
+#: src/main/help.c:336
 msgid "set estimated data size to SIZE bytes"
 msgstr "ustaw oczekiwany rozmiar danych na WARTOŚĆ bajtów"
 
-#: src/main/help.c:68
+#: src/main/help.c:339
 msgid "count lines instead of bytes"
 msgstr ""
 
-#: src/main/help.c:70
+#: src/main/help.c:342
 msgid "lines are null-terminated"
 msgstr ""
 
-#: src/main/help.c:72
+#: src/main/help.c:345
 msgid "update every SEC seconds"
 msgstr "aktualizuj co każde WARTOŚĆ sekund"
 
-#: src/main/help.c:73
+#: src/main/help.c:347
 msgid "WIDTH"
 msgstr "WARTOŚĆ"
 
-#: src/main/help.c:74
+#: src/main/help.c:348
 msgid "assume terminal is WIDTH characters wide"
 msgstr "przyjmij, że terminal ma szerokość WARTOŚĆ znaków"
 
-#: src/main/help.c:75
+#: src/main/help.c:350
 msgid "HEIGHT"
 msgstr ""
 
-#: src/main/help.c:76
+#: src/main/help.c:351
 msgid "assume terminal is HEIGHT rows high"
 msgstr "przyjmij, że terminal ma szerokość WARTOŚĆ znaków"
 
-#: src/main/help.c:77
+#: src/main/help.c:353
 msgid "NAME"
 msgstr "NAZWA"
 
-#: src/main/help.c:78
+#: src/main/help.c:354
 msgid "prefix visual information with NAME"
 msgstr "poprzedź informacje prefiksem NAZWA"
 
-#: src/main/help.c:80
+#: src/main/help.c:357
 msgid "output even if standard error is not a terminal"
 msgstr "pokaż wyjście nawet gdy błędy nie są typu terminal"
 
-#: src/main/help.c:82
+#: src/main/help.c:360
 msgid "use cursor positioning escape sequences"
 msgstr "używaj sekwencji escape do pozycjonowania"
 
-#: src/main/help.c:84
+#: src/main/help.c:363
 msgid "RATE"
 msgstr ""
 
-#: src/main/help.c:85
+#: src/main/help.c:364
 msgid "limit transfer to RATE bytes per second"
 msgstr "ogranicz przesyłane dane do RATE bajtów na sekundę"
 
-#: src/main/help.c:86
+#: src/main/help.c:366 src/main/help.c:375
 msgid "BYTES"
 msgstr ""
 
-#: src/main/help.c:87
+#: src/main/help.c:367
 msgid "use a buffer size of BYTES"
 msgstr ""
 
-#: src/main/help.c:89
+#: src/main/help.c:370
 msgid "never use splice(), always use read/write"
 msgstr ""
 
-#: src/main/help.c:91
+#: src/main/help.c:373
 msgid "skip read errors in input"
 msgstr ""
 
-#: src/main/help.c:93
+#: src/main/help.c:376
+msgid "skip errors in BYTES blocks at a time"
+msgstr ""
+
+#: src/main/help.c:379
 msgid "stop after --size bytes have been transferred"
 msgstr ""
 
-#: src/main/help.c:95
+#: src/main/help.c:382
+msgid "flush cache to disk after every write"
+msgstr ""
+
+#: src/main/help.c:385
+msgid "use direct I/O to bypass cache"
+msgstr ""
+
+#: src/main/help.c:388
+msgid "discard input instead of writing to output"
+msgstr ""
+
+#: src/main/help.c:391
 msgid "PID"
 msgstr ""
 
-#: src/main/help.c:96
+#: src/main/help.c:392
 msgid "update settings of process PID"
 msgstr ""
 
-#: src/main/help.c:99
+#: src/main/help.c:396 src/main/help.c:411
 msgid "FILE"
 msgstr ""
 
-#: src/main/help.c:100
+#: src/main/help.c:397
 msgid "save process ID in FILE"
 msgstr ""
 
-#: src/main/help.c:102
+#: src/main/help.c:400
 msgid "PID[:FD]"
 msgstr ""
 
-#: src/main/help.c:103
+#: src/main/help.c:401
 msgid "watch file FD opened by process PID"
 msgstr ""
 
-#: src/main/help.c:106
+#: src/main/help.c:405
 msgid "show this help and exit"
 msgstr "wyświetl te informacje z pomocą i wyjdź"
 
-#: src/main/help.c:108
+#: src/main/help.c:408
 msgid "show version information and exit"
 msgstr "wyświetl informacje o wersji i wyjdź"
 
-#: src/main/help.c:114
+#: src/main/help.c:412
+msgid "write debug logs to FILE"
+msgstr ""
+
+#: src/main/help.c:437
 #, c-format
 msgid "Usage: %s [OPTION] [FILE]..."
 msgstr "Sposób użycia: %s [OPCJA] [PLIK]..."
 
-#: src/main/help.c:117
+#: src/main/help.c:448
 msgid ""
-"Concatenate FILE(s), or standard input, to standard output,\n"
-"with monitoring."
+"Concatenate FILE(s), or standard input, to standard output, with monitoring."
 msgstr ""
-"Łączenie PLIK(ów) lub wejścia standardowego, do wyjścia standardowego\n"
-"z monitoringiem."
+"Łączenie PLIK(ów) lub wejścia standardowego, do wyjścia standardowego z "
+"monitoringiem."
 
-#: src/main/help.c:212
-msgid ""
-"Debugging is enabled; export the DEBUG environment variable to define the\n"
-"output filename.\n"
-msgstr ""
-
-#: src/main/help.c:216
+#: src/main/help.c:585
 #, c-format
-msgid "Please report any bugs to %s."
-msgstr "Proszę przesyłać zgłoszenia błędów do %s."
+msgid "Please report any bugs to: %s"
+msgstr "Proszę przesyłać zgłoszenia błędów do %s"
 
 #: src/main/main.c:74
 msgid "state allocation failed"
 msgstr ""
 
-#: src/main/main.c:248
-msgid "failed to read terminal attributes"
-msgstr ""
-
-#: src/main/remote.c:221
-msgid "message not received"
-msgstr ""
-
-#: src/main/remote.c:328
-msgid "IPC not supported on this system"
-msgstr ""
-
-#: src/main/options.c:102
+#: src/main/options.c:174
 msgid "option structure allocation failed"
 msgstr "nie udało się zaalokować struktur opcji"
 
-#: src/main/options.c:116
+#: src/main/options.c:193
 msgid "option structure argv allocation failed"
 msgstr "nie udało się zaalokować struktur opcji argv"
 
-#: src/main/options.c:160
+#: src/main/options.c:255
 msgid "integer argument expected"
 msgstr ""
 
-#: src/main/options.c:171
+#: src/main/options.c:266
 msgid "numeric argument expected"
 msgstr ""
 
-#: src/main/options.c:182
+#: src/main/options.c:277
 msgid "process ID or pid:fd pair expected"
 msgstr ""
 
-#: src/main/options.c:189
+#: src/main/options.c:284
 msgid "invalid process ID"
 msgstr ""
 
-#: src/main/options.c:355
+#: src/main/options.c:388 src/pv/file.c:323
+msgid "failed to stat file"
+msgstr "nie udało się wykonać operacji stat na pliku"
+
+#: src/main/options.c:491
 #, c-format
 msgid "Try `%s --help' for more information."
 msgstr "Spróbuj `%s --help' by uzyskać więcej informacji"
 
-#: src/main/options.c:359
+#: src/main/options.c:493
 #, c-format
 msgid "Try `%s -h' for more information."
 msgstr "Spróbuj `%s -h' by uzyskać więcej informacji"
 
-#: src/main/options.c:375
+#: src/main/options.c:524
 msgid ""
 "cannot use line mode or transfer modifier options when watching file "
 "descriptors"
 msgstr ""
 
-#: src/main/options.c:383
+#: src/main/options.c:533
 msgid "cannot use cursor positioning when watching file descriptors"
 msgstr ""
 
-#: src/main/options.c:391
+#: src/main/options.c:542
 msgid "cannot use remote control when watching file descriptors"
 msgstr ""
 
-#: src/main/options.c:399
+#: src/main/options.c:551
 msgid "cannot transfer files when watching file descriptors"
 msgstr ""
 
-#: src/main/options.c:407
+#: src/main/options.c:566
 msgid "not available on systems without /proc/self/fdinfo"
 msgstr ""
+
+#: src/main/remote.c:302
+msgid "message not received"
+msgstr ""
+
+#: src/main/remote.c:429
+msgid "SA_SIGINFO not supported on this system"
+msgstr ""
+
+#: src/main/version.c:28
+msgid "License: GPLv3+ <https://www.gnu.org/licenses/gpl-3.0.html>"
+msgstr ""
+
+#: src/main/version.c:29
+msgid "This is free software: you are free to change and redistribute it."
+msgstr ""
+
+#: src/main/version.c:30
+msgid "There is NO WARRANTY, to the extent permitted by law."
+msgstr ""
+
+#: src/main/version.c:32
+msgid "Project web site"
+msgstr ""
+
+#: src/pv/cursor.c:87
+msgid "failed to get terminal name"
+msgstr ""
+
+# "Przewidywany czas ukończenia" for ETA is too long
+#: src/pv/cursor.c:132
+msgid "failed to open lock file"
+msgstr ""
+
+#: src/pv/cursor.c:165
+msgid "lock attempt failed"
+msgstr ""
+
+#: src/pv/cursor.c:426
+msgid "failed to open terminal"
+msgstr "nie udało się otworzyć terminala"
+
+#: src/pv/display.c:193
+msgid "yzafpnum kMGTPEZY"
+msgstr ""
+
+#: src/pv/display.c:211
+msgid "yzafpnum KMGTPEZY"
+msgstr ""
+
+#: src/pv/display.c:750 src/pv/transfer.c:954
+msgid "buffer allocation failed"
+msgstr "nie udało się zaalokować bufora"
+
+#: src/pv/display.c:856
+msgid "b"
+msgstr ""
+
+#: src/pv/display.c:859 src/pv/transfer.c:596
+msgid "B"
+msgstr "B"
+
+#: src/pv/display.c:900 src/pv/display.c:916
+msgid "b/s"
+msgstr ""
+
+#: src/pv/display.c:905 src/pv/display.c:920
+msgid "/s"
+msgstr "/s"
+
+#: src/pv/display.c:905 src/pv/display.c:920
+msgid "B/s"
+msgstr "B/s"
+
+#: src/pv/display.c:947 src/pv/display.c:951 src/pv/display.c:1017
+msgid "ETA"
+msgstr "ETA"
+
+#: src/pv/file.c:148
+msgid "failed to seek to start of output"
+msgstr ""
+
+# "Przewidywany czas ukończenia" for ETA is too long
+#: src/pv/file.c:293
+msgid "failed to close file"
+msgstr "nie udało się zamknąć pliku"
+
+#: src/pv/file.c:316
+msgid "failed to read file"
+msgstr "nie udało się odczytać pliku"
+
+#: src/pv/file.c:331
+msgid "failed to stat output file"
+msgstr "nie udało się wykonać operacji stat na pliku wyjściowym"
+
+#: src/pv/file.c:353
+msgid "input file is output file"
+msgstr "plik wejściowy jest zarazem plikiem wyjściowym"
+
+#: src/pv/file.c:411
+msgid "(none)"
+msgstr ""
+
+#: src/pv/file.c:413
+msgid "(stdin)"
+msgstr ""
+
+#: src/pv/loop.c:570 src/pv/loop.c:621 src/pv/loop.c:662 src/pv/watchpid.c:99
+#: src/pv/watchpid.c:109 src/pv/watchpid.c:120 src/pv/watchpid.c:128
+#: src/pv/watchpid.c:165 src/pv/watchpid.c:184 src/pv/watchpid.c:192
+#: src/pv/watchpid.c:202 src/pv/watchpid.c:293 src/pv/watchpid.c:301
+#: src/pv/watchpid.c:377 src/pv/watchpid.c:398
+msgid "pid"
+msgstr ""
+
+#: src/pv/state.c:36
+msgid "history structure allocation failed"
+msgstr ""
+
+#: src/pv/state.c:391 src/pv/state.c:402
+msgid "file list allocation failed"
+msgstr ""
+
+#: src/pv/transfer.c:458
+msgid "read failed"
+msgstr "błąd odczytu"
+
+#: src/pv/transfer.c:481
+msgid "warning: read errors detected"
+msgstr ""
+
+#: src/pv/transfer.c:497
+msgid "file is not seekable"
+msgstr ""
+
+#: src/pv/transfer.c:575
+msgid "failed to seek past error"
+msgstr ""
+
+#: src/pv/transfer.c:595
+msgid "skipped past read error"
+msgstr ""
+
+#: src/pv/transfer.c:635
+msgid "no transfer buffer allocated"
+msgstr ""
+
+#: src/pv/transfer.c:676
+msgid "failed to set interval timer"
+msgstr ""
+
+# "Przewidywany czas ukończenia" for ETA is too long
+#: src/pv/transfer.c:694
+msgid "failed to clear interval timer"
+msgstr ""
+
+#: src/pv/transfer.c:818
+msgid "write failed"
+msgstr "błąd zapisu"
+
+#: src/pv/transfer.c:1051
+msgid "select call failed"
+msgstr "nie udało się wywołać funkcji select"
+
+#: src/pv/watchpid.c:109 src/pv/watchpid.c:121 src/pv/watchpid.c:130
+#: src/pv/watchpid.c:184 src/pv/watchpid.c:193 src/pv/watchpid.c:204
+msgid "fd"
+msgstr ""
+
+#: src/pv/watchpid.c:130 src/pv/watchpid.c:204
+msgid "not a regular file or block device"
+msgstr ""

po/pt.po

@@ -5,437 +5,288 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
-"Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2023-07-17 21:52+0100\n"
+"Report-Msgid-Bugs-To: pv@ivarch.com\n"
+"POT-Creation-Date: 2024-04-21 14:15+0100\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
+"Language: pt\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
 
-#: src/pv/cursor.c:80
-msgid "failed to get terminal name"
-msgstr "erro ao ler o nome do terminal"
-
-#: src/pv/cursor.c:125
-msgid "failed to open lock file"
-msgstr "erro ao abrir arquivo de bloqueio"
-
-#: src/pv/cursor.c:159
-msgid "lock attempt failed"
-msgstr "tentativa de bloqueio falhou"
-
-#: src/pv/cursor.c:409
-msgid "failed to open terminal"
-msgstr "erro abrindo o terminal"
-
-#: src/pv/file.c:119
-msgid "failed to seek to start of output"
-msgstr "não pode mover para o início da produção"
-
-#: src/pv/file.c:215
-msgid "failed to close file"
-msgstr "erro fechando o arquivo"
-
-#: src/pv/file.c:238
-msgid "failed to read file"
-msgstr "erro lendo o arquivo"
-
-#: src/pv/file.c:248 src/main/options.c:288
-msgid "failed to stat file"
-msgstr "erro obtendo informações do arquivo"
-
-#: src/pv/file.c:257
-msgid "failed to stat output file"
-msgstr "erro obtendo informações do arquivo de saída"
-
-#: src/pv/file.c:280
-msgid "input file is output file"
-msgstr "os arquivos de entrada e saída são o mesmo"
-
-#: src/pv/loop.c:527 src/pv/loop.c:597 src/pv/loop.c:649 src/pv/watchpid.c:68
-#: src/pv/watchpid.c:79 src/pv/watchpid.c:93 src/pv/watchpid.c:104
-#: src/pv/watchpid.c:145 src/pv/watchpid.c:168 src/pv/watchpid.c:178
-#: src/pv/watchpid.c:192 src/pv/watchpid.c:285 src/pv/watchpid.c:294
-#: src/pv/watchpid.c:332 src/pv/watchpid.c:349
-msgid "pid"
-msgstr ""
-
-#: src/pv/transfer.c:341
-msgid "read failed"
-msgstr "erro de leitura"
-
-#: src/pv/transfer.c:359
-msgid "warning: read errors detected"
-msgstr "aviso: erros de leitura detectados"
-
-#: src/pv/transfer.c:374
-msgid "file is not seekable"
-msgstr "não pode mover dentro do arquivo"
-
-#: src/pv/transfer.c:437
-msgid "failed to seek past error"
-msgstr "não pode ir além do erro"
-
-#: src/pv/transfer.c:456
-msgid "skipped past read error"
-msgstr "ignorado erro de leitura"
-
-#: src/pv/transfer.c:458 src/pv/display.c:687
-msgid "B"
-msgstr ""
-
-#: src/pv/transfer.c:631
-msgid "write failed"
-msgstr "erro de gravação"
-
-#: src/pv/transfer.c:679 src/pv/display.c:618
-msgid "buffer allocation failed"
-msgstr "erro alocando o buffer"
-
-#: src/pv/transfer.c:770
-msgid "select call failed"
-msgstr "erro na chamada da função select"
-
-#: src/pv/state.c:25
-msgid "history structure allocation failed"
-msgstr ""
-
-#: src/pv/state.c:55
-msgid "none"
-msgstr ""
-
-#: src/pv/display.c:151
-msgid "yzafpnum kMGTPEZY"
-msgstr ""
-
-#: src/pv/display.c:156
-msgid "yzafpnum KMGTPEZY"
-msgstr ""
-
-#: src/pv/display.c:683
-msgid "b"
-msgstr ""
-
-#: src/pv/display.c:738 src/pv/display.c:752
-msgid "b/s"
-msgstr ""
-
-#: src/pv/display.c:742 src/pv/display.c:757
-msgid "/s"
-msgstr ""
-
-#: src/pv/display.c:742 src/pv/display.c:758
-msgid "B/s"
-msgstr "B/s"
-
-#: src/pv/display.c:793 src/pv/display.c:798 src/pv/display.c:860
-msgid "ETA"
-msgstr "ETA"
-
-#: src/pv/watchpid.c:81 src/pv/watchpid.c:95 src/pv/watchpid.c:106
-#: src/pv/watchpid.c:170 src/pv/watchpid.c:180 src/pv/watchpid.c:194
-msgid "fd"
-msgstr ""
-
-#: src/pv/watchpid.c:109 src/pv/watchpid.c:197
-msgid "not a regular file or block device"
-msgstr "não é um arquivo regular ou dispositivo de bloqueio"
-
-#: src/main/version.c:17
-#, c-format
-msgid "%s %s - Copyright %s %s"
-msgstr "%s %s - Copyright(C) %s %s"
-
-#: src/main/version.c:20
-#, c-format
-msgid "Web site: %s"
-msgstr "Site: %s"
-
-#: src/main/version.c:23
-msgid ""
-"This program is free software, and is being distributed under the\n"
-"terms of the Artistic License 2.0."
-msgstr ""
-"Este programa é um software livre, distribuído sob os termos da\n"
-"Licença Artística."
-
-#: src/main/version.c:28
-msgid ""
-"This program is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
-msgstr ""
-"Este programa é distribuído com o intuito de que seja útil,\n"
-"porém SEM QUAISQUER GARANTIAS; sem inclusive as garantias implícitas de\n"
-"COMERCIALIZAÇÃO e ADEQUAÇÃO A OBJETIVOS PARTICULARES."
-
-#: src/main/help.c:31
+#: src/main/help.c:284
 msgid "show progress bar"
 msgstr "exibe barra de progressão"
 
-#: src/main/help.c:33
+#: src/main/help.c:287
 msgid "show elapsed time"
 msgstr "exibe tempo passado"
 
-#: src/main/help.c:35
+#: src/main/help.c:290
 msgid "show estimated time of arrival (completion)"
 msgstr "exibe o tempo estimado de término"
 
-#: src/main/help.c:38
+#: src/main/help.c:293
 msgid "show absolute estimated time of arrival (completion)"
 msgstr "exibe o tempo absoluto estimado de término"
 
-#: src/main/help.c:40
+#: src/main/help.c:296
 msgid "show data transfer rate counter"
 msgstr "exibe a taxa de transferência"
 
-#: src/main/help.c:42
+#: src/main/help.c:299
 msgid "show data transfer average rate counter"
 msgstr "exibe o contador da taxa média de transferência de dados"
 
-#: src/main/help.c:43 src/main/help.c:63 src/main/help.c:71
+#: src/main/help.c:301 src/main/help.c:332 src/main/help.c:344
 msgid "SEC"
 msgstr ""
 
-#: src/main/help.c:45
+#: src/main/help.c:302
 msgid "compute average rate over past SEC seconds (default 30s)"
 msgstr ""
 
-#: src/main/help.c:47
+#: src/main/help.c:305
 msgid "show number of bytes transferred"
 msgstr "exibe a quantidade de bytes transferidos"
 
-#: src/main/help.c:49
+#: src/main/help.c:308
 msgid "show number of bits transferred"
 msgstr ""
 
-#: src/main/help.c:51
+#: src/main/help.c:311
+msgid "treat suffixes as multiples of 1000 rather than 1024"
+msgstr ""
+
+#: src/main/help.c:314
 msgid "show percentage of transfer buffer in use"
 msgstr "exibe a porcentagem de buffer de transferência em uso"
 
-#: src/main/help.c:52
+#: src/main/help.c:316
 msgid "NUM"
 msgstr ""
 
-#: src/main/help.c:53
+#: src/main/help.c:317
 msgid "show NUM bytes last written"
 msgstr "exibe NUM bytes gravados pela última vez"
 
-#: src/main/help.c:54
+#: src/main/help.c:319
 msgid "FORMAT"
 msgstr ""
 
-#: src/main/help.c:55
+#: src/main/help.c:320
 msgid "set output format to FORMAT"
 msgstr "definir o formato de saída para FORMAT"
 
-#: src/main/help.c:57
+#: src/main/help.c:323
 msgid "output percentages, not visual information"
 msgstr "exibe apenas as porcentagens, sem informações visuais"
 
-#: src/main/help.c:59
+#: src/main/help.c:326
 msgid "do not output any transfer information at all"
 msgstr "executa programa sem exibir quaisquer informações"
 
-#: src/main/help.c:62
+#: src/main/help.c:330
 msgid "display nothing until first byte transferred"
 msgstr "não exibe nada até iniciar o processamento"
 
-#: src/main/help.c:64
+#: src/main/help.c:333
 msgid "display nothing until SEC seconds have passed"
 msgstr "não exibir nada até que os segundos SEC tenham passado"
 
-#: src/main/help.c:65
+#: src/main/help.c:335
 msgid "SIZE"
 msgstr ""
 
-#: src/main/help.c:66
+#: src/main/help.c:336
 msgid "set estimated data size to SIZE bytes"
 msgstr "seta a quantidade estimada de dados em SIZE bytes"
 
-#: src/main/help.c:68
+#: src/main/help.c:339
 msgid "count lines instead of bytes"
 msgstr "contar linhas em vez de bytes"
 
-#: src/main/help.c:70
+#: src/main/help.c:342
 msgid "lines are null-terminated"
 msgstr "linhas são terminadas em nulo"
 
-#: src/main/help.c:72
+#: src/main/help.c:345
 msgid "update every SEC seconds"
 msgstr "atualiza informações a cada SEC segundos"
 
-#: src/main/help.c:73
+#: src/main/help.c:347
 msgid "WIDTH"
 msgstr ""
 
-#: src/main/help.c:74
+#: src/main/help.c:348
 msgid "assume terminal is WIDTH characters wide"
 msgstr "presuma que o terminal tem WIDTH caracteres de largura"
 
-#: src/main/help.c:75
+#: src/main/help.c:350
 msgid "HEIGHT"
 msgstr ""
 
-#: src/main/help.c:76
+#: src/main/help.c:351
 msgid "assume terminal is HEIGHT rows high"
 msgstr "presuma que o terminal tem HEIGHT caracteres de altura"
 
-#: src/main/help.c:77
+#: src/main/help.c:353
 msgid "NAME"
 msgstr ""
 
-#: src/main/help.c:78
+#: src/main/help.c:354
 msgid "prefix visual information with NAME"
 msgstr "exibe NAME antes das demais informações"
 
-#: src/main/help.c:80
+#: src/main/help.c:357
 msgid "output even if standard error is not a terminal"
 msgstr "gera dados mesmo que a saída de erro seja redirecionada"
 
-#: src/main/help.c:82
+#: src/main/help.c:360
 msgid "use cursor positioning escape sequences"
 msgstr "utiliza caracteres de escape para posicionar o cursor"
 
-#: src/main/help.c:84
+#: src/main/help.c:363
 msgid "RATE"
 msgstr ""
 
-#: src/main/help.c:85
+#: src/main/help.c:364
 msgid "limit transfer to RATE bytes per second"
 msgstr "limita a transferência a RATE bytes por segundo"
 
-#: src/main/help.c:86
+#: src/main/help.c:366 src/main/help.c:375
 msgid "BYTES"
 msgstr ""
 
-#: src/main/help.c:87
+#: src/main/help.c:367
 msgid "use a buffer size of BYTES"
 msgstr "use um tamanho de buffer de BYTES"
 
-#: src/main/help.c:89
+#: src/main/help.c:370
 msgid "never use splice(), always use read/write"
 msgstr "nunca use splice(), sempre use read/write"
 
-#: src/main/help.c:91
+#: src/main/help.c:373
 msgid "skip read errors in input"
 msgstr "ignorar erros de leitura em entrada"
 
-#: src/main/help.c:93
+#: src/main/help.c:376
+msgid "skip errors in BYTES blocks at a time"
+msgstr ""
+
+#: src/main/help.c:379
 msgid "stop after --size bytes have been transferred"
 msgstr "parar após --size bytes terem sido transferidos"
 
-#: src/main/help.c:95
+#: src/main/help.c:382
+msgid "flush cache to disk after every write"
+msgstr ""
+
+#: src/main/help.c:385
+msgid "use direct I/O to bypass cache"
+msgstr ""
+
+#: src/main/help.c:388
+msgid "discard input instead of writing to output"
+msgstr ""
+
+#: src/main/help.c:391
 msgid "PID"
 msgstr ""
 
-#: src/main/help.c:96
+#: src/main/help.c:392
 msgid "update settings of process PID"
 msgstr "atualizar as configurações do processo PID"
 
-#: src/main/help.c:99
+#: src/main/help.c:396 src/main/help.c:411
 msgid "FILE"
 msgstr ""
 
-#: src/main/help.c:100
+#: src/main/help.c:397
 msgid "save process ID in FILE"
 msgstr "salvar ID do processo em FILE"
 
-#: src/main/help.c:102
+#: src/main/help.c:400
 msgid "PID[:FD]"
 msgstr ""
 
-#: src/main/help.c:103
+#: src/main/help.c:401
 msgid "watch file FD opened by process PID"
 msgstr "assistir arquivo FD aberto pelo processo PID"
 
-#: src/main/help.c:106
+#: src/main/help.c:405
 msgid "show this help and exit"
 msgstr "exibe esta tela de ajuda e termina"
 
-#: src/main/help.c:108
+#: src/main/help.c:408
 msgid "show version information and exit"
 msgstr "exibe a versão e termina"
 
-#: src/main/help.c:114
+#: src/main/help.c:412
+msgid "write debug logs to FILE"
+msgstr ""
+
+#: src/main/help.c:437
 #, c-format
 msgid "Usage: %s [OPTION] [FILE]..."
 msgstr "Uso: %s [OPÇÕES] [ARQUIVOS]..."
 
-#: src/main/help.c:117
+#: src/main/help.c:448
 msgid ""
-"Concatenate FILE(s), or standard input, to standard output,\n"
-"with monitoring."
+"Concatenate FILE(s), or standard input, to standard output, with monitoring."
 msgstr ""
-"Concatena ARQUIVO(s) ou a entrada padrão e grava na saída padrão,\n"
-"com monitoramento."
+"Concatena ARQUIVO(s) ou a entrada padrão e grava na saída padrão, com "
+"monitoramento."
 
-#: src/main/help.c:212
-msgid ""
-"Debugging is enabled; export the DEBUG environment variable to define the\n"
-"output filename.\n"
-msgstr ""
-"A depuração está habilitada; exporte a variável de ambiente DEBUG para\n"
-"definir o nome do arquivo de saída.\n"
-
-#: src/main/help.c:216
+#: src/main/help.c:585
 #, c-format
-msgid "Please report any bugs to %s."
-msgstr "Por favor, reporte quaisquer defeitos para %s."
+msgid "Please report any bugs to: %s"
+msgstr "Por favor, reporte quaisquer defeitos para %s"
 
 #: src/main/main.c:74
 msgid "state allocation failed"
 msgstr "alocação de memória de status falhou"
 
-#: src/main/main.c:248
-msgid "failed to read terminal attributes"
-msgstr ""
-
-#: src/main/remote.c:221
-msgid "message not received"
-msgstr "mensagem não recebida"
-
-#: src/main/remote.c:328
-msgid "IPC not supported on this system"
-msgstr "IPC não suportado neste sistema"
-
-#: src/main/options.c:102
+#: src/main/options.c:174
 msgid "option structure allocation failed"
 msgstr "erro na alocação da estrutura de opções"
 
-#: src/main/options.c:116
+#: src/main/options.c:193
 msgid "option structure argv allocation failed"
 msgstr "erro na alocação da estrutura de opções argv"
 
-#: src/main/options.c:160
+#: src/main/options.c:255
 msgid "integer argument expected"
 msgstr "argumento inteiro esperado"
 
-#: src/main/options.c:171
+#: src/main/options.c:266
 msgid "numeric argument expected"
 msgstr "argumento numérico esperado"
 
-#: src/main/options.c:182
+#: src/main/options.c:277
 msgid "process ID or pid:fd pair expected"
 msgstr "ID do processo ou par pid:fd esperado"
 
-#: src/main/options.c:189
+#: src/main/options.c:284
 msgid "invalid process ID"
 msgstr "ID de processo inválido"
 
-#: src/main/options.c:355
+#: src/main/options.c:388 src/pv/file.c:323
+msgid "failed to stat file"
+msgstr "erro obtendo informações do arquivo"
+
+#: src/main/options.c:491
 #, c-format
 msgid "Try `%s --help' for more information."
 msgstr "Tente `%s --help' para maiores informações."
 
-#: src/main/options.c:359
+#: src/main/options.c:493
 #, c-format
 msgid "Try `%s -h' for more information."
 msgstr "Tente `%s -h' para maiores informações."
 
-#: src/main/options.c:375
+#: src/main/options.c:524
 msgid ""
 "cannot use line mode or transfer modifier options when watching file "
 "descriptors"
@@ -443,20 +294,189 @@ msgstr ""
 "não pode usar o modo de linha ou opções de modificador de transferência ao "
 "assistir os descritores de arquivo"
 
-#: src/main/options.c:383
+#: src/main/options.c:533
 msgid "cannot use cursor positioning when watching file descriptors"
 msgstr ""
 "não pode usar o posicionamento do cursor ao observar os descritores de "
 "arquivo"
 
-#: src/main/options.c:391
+#: src/main/options.c:542
 msgid "cannot use remote control when watching file descriptors"
 msgstr "não pode usar o controle remoto ao assistir os descritores de arquivo"
 
-#: src/main/options.c:399
+#: src/main/options.c:551
 msgid "cannot transfer files when watching file descriptors"
 msgstr "não pode transferir arquivos ao assistir descritores de arquivo"
 
-#: src/main/options.c:407
+#: src/main/options.c:566
 msgid "not available on systems without /proc/self/fdinfo"
 msgstr "não disponível em sistemas sem /proc/self/fdinfo"
+
+#: src/main/remote.c:302
+msgid "message not received"
+msgstr "mensagem não recebida"
+
+#: src/main/remote.c:429
+msgid "SA_SIGINFO not supported on this system"
+msgstr "SA_SIGINFO não suportado neste sistema"
+
+#: src/main/version.c:28
+msgid "License: GPLv3+ <https://www.gnu.org/licenses/gpl-3.0.html>"
+msgstr ""
+
+#: src/main/version.c:29
+msgid "This is free software: you are free to change and redistribute it."
+msgstr ""
+
+#: src/main/version.c:30
+msgid "There is NO WARRANTY, to the extent permitted by law."
+msgstr ""
+
+#: src/main/version.c:32
+msgid "Project web site"
+msgstr ""
+
+#: src/pv/cursor.c:87
+msgid "failed to get terminal name"
+msgstr "erro ao ler o nome do terminal"
+
+#: src/pv/cursor.c:132
+msgid "failed to open lock file"
+msgstr "erro ao abrir arquivo de bloqueio"
+
+#: src/pv/cursor.c:165
+msgid "lock attempt failed"
+msgstr "tentativa de bloqueio falhou"
+
+#: src/pv/cursor.c:426
+msgid "failed to open terminal"
+msgstr "erro abrindo o terminal"
+
+#: src/pv/display.c:193
+msgid "yzafpnum kMGTPEZY"
+msgstr ""
+
+#: src/pv/display.c:211
+msgid "yzafpnum KMGTPEZY"
+msgstr ""
+
+#: src/pv/display.c:750 src/pv/transfer.c:954
+msgid "buffer allocation failed"
+msgstr "erro alocando o buffer"
+
+#: src/pv/display.c:856
+msgid "b"
+msgstr ""
+
+#: src/pv/display.c:859 src/pv/transfer.c:596
+msgid "B"
+msgstr ""
+
+#: src/pv/display.c:900 src/pv/display.c:916
+msgid "b/s"
+msgstr ""
+
+#: src/pv/display.c:905 src/pv/display.c:920
+msgid "/s"
+msgstr ""
+
+#: src/pv/display.c:905 src/pv/display.c:920
+msgid "B/s"
+msgstr "B/s"
+
+#: src/pv/display.c:947 src/pv/display.c:951 src/pv/display.c:1017
+msgid "ETA"
+msgstr "ETA"
+
+#: src/pv/file.c:148
+msgid "failed to seek to start of output"
+msgstr "não pode mover para o início da produção"
+
+#: src/pv/file.c:293
+msgid "failed to close file"
+msgstr "erro fechando o arquivo"
+
+#: src/pv/file.c:316
+msgid "failed to read file"
+msgstr "erro lendo o arquivo"
+
+#: src/pv/file.c:331
+msgid "failed to stat output file"
+msgstr "erro obtendo informações do arquivo de saída"
+
+#: src/pv/file.c:353
+msgid "input file is output file"
+msgstr "os arquivos de entrada e saída são o mesmo"
+
+#: src/pv/file.c:411
+msgid "(none)"
+msgstr ""
+
+#: src/pv/file.c:413
+msgid "(stdin)"
+msgstr ""
+
+#: src/pv/loop.c:570 src/pv/loop.c:621 src/pv/loop.c:662 src/pv/watchpid.c:99
+#: src/pv/watchpid.c:109 src/pv/watchpid.c:120 src/pv/watchpid.c:128
+#: src/pv/watchpid.c:165 src/pv/watchpid.c:184 src/pv/watchpid.c:192
+#: src/pv/watchpid.c:202 src/pv/watchpid.c:293 src/pv/watchpid.c:301
+#: src/pv/watchpid.c:377 src/pv/watchpid.c:398
+msgid "pid"
+msgstr ""
+
+#: src/pv/state.c:36
+msgid "history structure allocation failed"
+msgstr ""
+
+#: src/pv/state.c:391 src/pv/state.c:402
+msgid "file list allocation failed"
+msgstr ""
+
+#: src/pv/transfer.c:458
+msgid "read failed"
+msgstr "erro de leitura"
+
+#: src/pv/transfer.c:481
+msgid "warning: read errors detected"
+msgstr "aviso: erros de leitura detectados"
+
+#: src/pv/transfer.c:497
+msgid "file is not seekable"
+msgstr "não pode mover dentro do arquivo"
+
+#: src/pv/transfer.c:575
+msgid "failed to seek past error"
+msgstr "não pode ir além do erro"
+
+#: src/pv/transfer.c:595
+msgid "skipped past read error"
+msgstr "ignorado erro de leitura"
+
+#: src/pv/transfer.c:635
+msgid "no transfer buffer allocated"
+msgstr ""
+
+#: src/pv/transfer.c:676
+msgid "failed to set interval timer"
+msgstr ""
+
+#: src/pv/transfer.c:694
+msgid "failed to clear interval timer"
+msgstr ""
+
+#: src/pv/transfer.c:818
+msgid "write failed"
+msgstr "erro de gravação"
+
+#: src/pv/transfer.c:1051
+msgid "select call failed"
+msgstr "erro na chamada da função select"
+
+#: src/pv/watchpid.c:109 src/pv/watchpid.c:121 src/pv/watchpid.c:130
+#: src/pv/watchpid.c:184 src/pv/watchpid.c:193 src/pv/watchpid.c:204
+msgid "fd"
+msgstr ""
+
+#: src/pv/watchpid.c:130 src/pv/watchpid.c:204
+msgid "not a regular file or block device"
+msgstr "não é um arquivo regular ou dispositivo de bloqueio"

src/include/config-aux.h

@@ -3,30 +3,31 @@
  * `configure' script.  Include this after config.h and before anything
  * else.
  *
- * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023 Andrew Wood
+ * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2024 Andrew Wood
  *
- * Distributed under the Artistic License v2.0; see `doc/COPYING'.
+ * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */
  
-#ifdef ENABLE_NLS
-# include "library/gettext.h"
+#if ENABLE_NLS
+# ifdef HAVE_LIBINTL_H
+#  include <libintl.h>
+# endif
+# ifdef HAVE_LOCALE_H
+#  include <locale.h>
+# endif
+# define _(String)	gettext (String)
+# define N_(String)	(String)
 #else
 # define _(String) (String)
 # define N_(String) (String)
 #endif
 
-#undef HAVE_IPC
-#ifdef HAVE_SYS_IPC_H
-#define HAVE_IPC 1
-#endif
-
 #undef CURSOR_ANSWERBACK_BYTE_BY_BYTE
 #ifndef _AIX
 #define CURSOR_ANSWERBACK_BYTE_BY_BYTE 1
 #endif
 
 /* Boolean type support */
-#undef HAVE_STDBOOL_H
 #ifdef HAVE_STDBOOL_H
 # include <stdbool.h>
 #else

src/include/config.h.in

@@ -1,34 +1,47 @@
-/* autoconf/header.in.  Generated from autoconf/configure.in by autoheader.  */
-
-/* Bug reporting email address */
-#undef BUG_REPORTS_TO
-
-/* Copyright holder */
-#undef COPYRIGHT_HOLDER
-
-/* Copyright year */
-#undef COPYRIGHT_YEAR
+/* src/include/config.h.in.  Generated from configure.ac by autoheader.  */
 
 /* Debugging support enabled */
 #undef ENABLE_DEBUGGING
 
-/* Enable native language support */
+/* Define to 1 if translation of program messages to the user's native
+   language is requested. */
 #undef ENABLE_NLS
 
-/* Define to 1 if `TIOCGWINSZ' requires <sys/ioctl.h>. */
-#undef GWINSZ_IN_SYS_IOCTL
+/* Define to 1 if you have the `alarm' function. */
+#undef HAVE_ALARM
 
 /* Define to 1 if you have the `basename' function. */
 #undef HAVE_BASENAME
 
+/* Define to 1 if you have the Mac OS X function
+   CFLocaleCopyPreferredLanguages in the CoreFoundation framework. */
+#undef HAVE_CFLOCALECOPYPREFERREDLANGUAGES
+
+/* Define to 1 if you have the Mac OS X function CFPreferencesCopyAppValue in
+   the CoreFoundation framework. */
+#undef HAVE_CFPREFERENCESCOPYAPPVALUE
+
+/* Define to 1 if you have the `clock_gettime' function. */
+#undef HAVE_CLOCK_GETTIME
+
+/* Define if the GNU dcgettext() function is already present or preinstalled.
+   */
+#undef HAVE_DCGETTEXT
+
+/* Define to 1 if you have the `dup2' function. */
+#undef HAVE_DUP2
+
+/* Define to 1 if you have the <fcntl.h> header file. */
+#undef HAVE_FCNTL_H
+
 /* Define to 1 if you have the `fdatasync' function. */
 #undef HAVE_FDATASYNC
 
 /* Define to 1 if you have the `fpathconf' function. */
 #undef HAVE_FPATHCONF
 
-/* Define to 1 if you have the `getopt' function. */
-#undef HAVE_GETOPT
+/* Define to 1 if you have the `getcwd' function. */
+#undef HAVE_GETCWD
 
 /* Define to 1 if you have the <getopt.h> header file. */
 #undef HAVE_GETOPT_H
@@ -36,21 +49,21 @@
 /* Define to 1 if you have the `getopt_long' function. */
 #undef HAVE_GETOPT_LONG
 
-/* The gettext function is available */
+/* Define if the GNU gettext() function is already present or preinstalled. */
 #undef HAVE_GETTEXT
 
+/* Define if you have the iconv() function and it works. */
+#undef HAVE_ICONV
+
 /* Define to 1 if you have the <inttypes.h> header file. */
 #undef HAVE_INTTYPES_H
 
+/* IPC support enabled */
+#undef HAVE_IPC
+
 /* Define to 1 if you have the <libgen.h> header file. */
 #undef HAVE_LIBGEN_H
 
-/* Define to 1 if you have the `i' library (-li). */
-#undef HAVE_LIBI
-
-/* Define to 1 if you have the `intl' library (-lintl). */
-#undef HAVE_LIBINTL
-
 /* Define to 1 if you have the <libintl.h> header file. */
 #undef HAVE_LIBINTL_H
 
@@ -63,12 +76,39 @@
 /* Define to 1 if you have the `memcpy' function. */
 #undef HAVE_MEMCPY
 
+/* Define to 1 if you have the `memmove' function. */
+#undef HAVE_MEMMOVE
+
+/* Define to 1 if you have the `memrchr' function. */
+#undef HAVE_MEMRCHR
+
+/* Define to 1 if you have the `memset' function. */
+#undef HAVE_MEMSET
+
 /* Define to 1 if you have the <minix/config.h> header file. */
 #undef HAVE_MINIX_CONFIG_H
 
+/* Define to 1 if you have the `nanosleep' function. */
+#undef HAVE_NANOSLEEP
+
+/* Define to 1 if you have the `posix_fadvise' function. */
+#undef HAVE_POSIX_FADVISE
+
 /* Define to 1 if you have the `posix_memalign' function. */
 #undef HAVE_POSIX_MEMALIGN
 
+/* Define to 1 if you have the `select' function. */
+#undef HAVE_SELECT
+
+/* Define to 1 if you have the `setitimer' function. */
+#undef HAVE_SETITIMER
+
+/* Define to 1 if you have the `setlocale' function. */
+#undef HAVE_SETLOCALE
+
+/* Define to 1 if you have the `shmget' function. */
+#undef HAVE_SHMGET
+
 /* Define to 1 if you have the `splice' function. */
 #undef HAVE_SPLICE
 
@@ -84,6 +124,12 @@
 /* Define to 1 if you have the <stdlib.h> header file. */
 #undef HAVE_STDLIB_H
 
+/* Define to 1 if you have the `strchr' function. */
+#undef HAVE_STRCHR
+
+/* Define to 1 if you have the `strerror' function. */
+#undef HAVE_STRERROR
+
 /* Define to 1 if you have the <strings.h> header file. */
 #undef HAVE_STRINGS_H
 
@@ -93,9 +139,27 @@
 /* Define to 1 if you have the `strlcat' function. */
 #undef HAVE_STRLCAT
 
+/* Define to 1 if you have the `strrchr' function. */
+#undef HAVE_STRRCHR
+
+/* Define to 1 if you have the `strstr' function. */
+#undef HAVE_STRSTR
+
+/* Define to 1 if you have the `strtoul' function. */
+#undef HAVE_STRTOUL
+
+/* Define to 1 if `st_blksize' is a member of `struct stat'. */
+#undef HAVE_STRUCT_STAT_ST_BLKSIZE
+
 /* Define to 1 if you have the `sysconf' function. */
 #undef HAVE_SYSCONF
 
+/* Define to 1 if you have the <sys/file.h> header file. */
+#undef HAVE_SYS_FILE_H
+
+/* Define to 1 if you have the <sys/ioctl.h> header file. */
+#undef HAVE_SYS_IOCTL_H
+
 /* Define to 1 if you have the <sys/ipc.h> header file. */
 #undef HAVE_SYS_IPC_H
 
@@ -105,9 +169,15 @@
 /* Define to 1 if you have the <sys/stat.h> header file. */
 #undef HAVE_SYS_STAT_H
 
+/* Define to 1 if you have the <sys/time.h> header file. */
+#undef HAVE_SYS_TIME_H
+
 /* Define to 1 if you have the <sys/types.h> header file. */
 #undef HAVE_SYS_TYPES_H
 
+/* Define to 1 if you have the <termios.h> header file. */
+#undef HAVE_TERMIOS_H
+
 /* Define to 1 if you have the <unistd.h> header file. */
 #undef HAVE_UNISTD_H
 
@@ -117,10 +187,13 @@
 /* Define to 1 if you have the <wchar.h> header file. */
 #undef HAVE_WCHAR_H
 
+/* Define to 1 if you have the <wctype.h> header file. */
+#undef HAVE_WCTYPE_H
+
 /* Define to 1 if the system has the type `_Bool'. */
 #undef HAVE__BOOL
 
-/* Package name */
+/* Name of package */
 #undef PACKAGE
 
 /* Define to the address where bug reports for this package should be sent. */
@@ -141,12 +214,6 @@
 /* Define to the version of this package. */
 #undef PACKAGE_VERSION
 
-/* Name of this program */
-#undef PROGRAM_NAME
-
-/* Project homepage */
-#undef PROJECT_HOMEPAGE
-
 /* Define to 1 if all of the C90 standard headers exist (not just the ones
    required in a freestanding environment). This macro is provided for
    backward compatibility; new code need not use it. */
@@ -240,7 +307,7 @@
 #endif
 
 
-/* Version of this program */
+/* Version number of package */
 #undef VERSION
 
 /* Number of bits in a file offset, on hosts where this is settable. */
@@ -252,4 +319,29 @@
 /* Define to empty if `const' does not conform to ANSI C. */
 #undef const
 
+/* Define to `int' if <sys/types.h> doesn't define. */
+#undef gid_t
+
+/* Define to the type of a signed integer type of width exactly 32 bits if
+   such a type exists and the standard includes do not define it. */
+#undef int32_t
+
+/* Define to `int' if <sys/types.h> does not define. */
+#undef mode_t
+
+/* Define to `long int' if <sys/types.h> does not define. */
+#undef off_t
+
+/* Define as a signed integer type capable of holding a process identifier. */
+#undef pid_t
+
+/* Define to `unsigned int' if <sys/types.h> does not define. */
+#undef size_t
+
+/* Define to `int' if <sys/types.h> does not define. */
+#undef ssize_t
+
+/* Define to `int' if <sys/types.h> doesn't define. */
+#undef uid_t
+
 #include "config-aux.h"

src/include/library/getopt.h

@@ -1,40 +0,0 @@
-/*
- * Replacement getopt function's header file. Include this AFTER config.h.
- *
- * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023 Andrew Wood
- *
- * Distributed under the Artistic License v2.0; see `doc/COPYING'.
- */
-
-#ifndef _LIBRARY_GETOPT_H
-#define _LIBRARY_GETOPT_H 1
-
-#ifdef HAVE_GETOPT_H
-#include <getopt.h>
-#endif
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#ifndef HAVE_GETOPT
-
-int minigetopt(int, char **, char *);
-extern char *minioptarg;
-extern int minioptind, miniopterr, minioptopt;
-
-#define getopt minigetopt	/* Flawfinder: ignore */
-#define optarg minioptarg
-#define optind minioptind
-#define opterr miniopterr
-#define optopt minioptopt
-
-#endif				/* !HAVE_GETOPT */
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* _LIBRARY_GETOPT_H */
-
-/* EOF */

src/include/library/gettext.h

@@ -1,55 +0,0 @@
-/*
- * Replacement gettext library header file. Include this within config.h,
- * like this:
- *
- *   #ifdef ENABLE_NLS
- *   # include "library/gettext.h"
- *   #else
- *   # define _(String) (String)
- *   # define N_(String) (String)
- *   #endif
- *
- * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023 Andrew Wood
- *
- * Distributed under the Artistic License v2.0; see `doc/COPYING'.
- */
-
-#ifndef _LIBRARY_GETTEXT_H
-#define _LIBRARY_GETTEXT_H 1
-
-#ifdef HAVE_GETTEXT
-# ifdef HAVE_LIBINTL_H
-#  include <libintl.h>
-# endif
-# ifdef HAVE_LOCALE_H
-#  include <locale.h>
-# endif
-# define _(String)	gettext (String)
-# define N_(String)	(String)
-#else
-# define _(String)	minigettext (String)
-# define N_(String)	(String)
-# define setlocale	minisetlocale
-# define bindtextdomain	minibindtextdomain
-# define textdomain	minitextdomain
-# ifndef LC_ALL
-#  define LC_ALL	""
-# endif
-#endif
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-char *minisetlocale(char *, char *);
-char *minibindtextdomain(char *, char *);
-char *minitextdomain(char *);
-char *minigettext(char *);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* _LIBRARY_GETTEXT_H */
-
-/* EOF */

src/include/options.h

@@ -1,14 +1,21 @@
 /*
  * Global program option structure and the parsing function prototype.
  *
- * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023 Andrew Wood
+ * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2024 Andrew Wood
  *
- * Distributed under the Artistic License v2.0; see `doc/COPYING'.
+ * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */
 
 #ifndef _OPTIONS_H
 #define _OPTIONS_H 1
 
+#if HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <stdlib.h>
+#include <sys/types.h>
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -17,7 +24,7 @@ struct opts_s;
 typedef struct opts_s *opts_t;
 
 struct opts_s {           /* structure describing run-time options */
-	char *program_name;            /* name the program is running as */
+	/*@keep@*/ const char *program_name; /* name the program is running as */
 	bool do_nothing;               /* exit-without-doing-anything flag */
 	bool progress;                 /* progress bar flag */
 	bool timer;                    /* timer flag */
@@ -27,41 +34,50 @@ struct opts_s {           /* structure describing run-time options */
 	bool average_rate;             /* average rate counter flag */
 	bool bytes;                    /* bytes transferred flag */
 	bool bits;                     /* report transfer size in bits */
+	bool decimal_units;            /* decimal prefix flag */
 	bool bufpercent;               /* transfer buffer percentage flag */
-	unsigned int lastwritten;      /* show N bytes last written */
+	size_t lastwritten;            /* show N bytes last written */
 	bool force;                    /* force-if-not-terminal flag */
 	bool cursor;                   /* whether to use cursor positioning */
 	bool numeric;                  /* numeric output only */
 	bool wait;                     /* wait for transfer before display */
 	bool linemode;                 /* count lines instead of bytes */
-	bool null;                     /* lines are null-terminated */
-	bool no_op;                    /* do nothing other than pipe data */
-	unsigned long long rate_limit; /* rate limit, in bytes per second */
-	unsigned long long buffer_size;/* buffer size, in bytes (0=default) */
+	bool null_terminated_lines;    /* lines are null-terminated */
+	bool no_display;               /* do nothing other than pipe data */
+	off_t rate_limit;              /* rate limit, in bytes per second */
+	size_t buffer_size;            /* buffer size, in bytes (0=default) */
 	unsigned int remote;           /* PID of pv to update settings of */
-	unsigned long long size;       /* total size of data */
+	off_t size;                    /* total size of data */
 	bool no_splice;                /* flag set if never to use splice */
 	unsigned int skip_errors;      /* skip read errors counter */
+	off_t error_skip_block;        /* skip block size, 0 for adaptive */
 	bool stop_at_size;             /* set if we stop at "size" bytes */
 	bool sync_after_write;         /* set if we sync after every write */
 	bool direct_io;                /* set if O_DIRECT is to be used */
+	bool discard_input;            /* set to write nothing to stdout */
 	double interval;               /* interval between updates */
 	double delay_start;            /* delay before first display */
-	unsigned int watch_pid;	       /* process to watch fds of */
+	pid_t watch_pid;	       /* process to watch fds of */
 	int watch_fd;		       /* fd to watch */
 	unsigned int average_rate_window; /* time window in seconds for average rate calculations */
 	unsigned int width;            /* screen width */
 	unsigned int height;           /* screen height */
-	char *name;                    /* process name, if any */
-	char *format;                  /* output format, if any */
-	char *pidfile;                 /* PID file, if any */
-	int argc;                      /* number of non-option arguments */
-	char **argv;                   /* array of non-option arguments */
+	bool width_set_manually;       /* width was set manually, not detected */
+	bool height_set_manually;      /* height was set manually, not detected */
+	/*@keep@*/ /*@null@*/ char *name;    /* display name, if any */
+	/*@keep@*/ /*@null@*/ char *format;  /* output format, if any */
+	/*@keep@*/ /*@null@*/ char *pidfile; /* PID file, if any */
+	unsigned int argc;             /* number of non-option arguments */
+	/*@keep@*/ /*@null@*/ const char **argv;   /* array of non-option arguments */
+	unsigned int argv_length;      /* allocated array size */
 };
 
-extern opts_t opts_parse(int, char **);
-extern void opts_free(opts_t);
+/*@-exportlocal@*/
+/* splint thinks opts_free is exported but not used - it is used. */
 
+extern /*@null@*/ /*@only@*/ opts_t opts_parse(unsigned int, char **);
+extern void opts_free(/*@only@*/ opts_t);
+extern bool opts_add_file(opts_t, const char *);
 
 #ifdef __cplusplus
 }

src/include/pv-internal.h

@@ -1,9 +1,9 @@
 /*
  * Functions internal to the PV library.  Include "config.h" first.
  *
- * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023 Andrew Wood
+ * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2024 Andrew Wood
  *
- * Distributed under the Artistic License v2.0; see `doc/COPYING'.
+ * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */
 
 #ifndef _PV_INTERNAL_H
@@ -11,6 +11,7 @@
 
 #include <stdlib.h>
 #include <signal.h>
+#include <time.h>
 #include <sys/types.h>
 #include <sys/time.h>
 #include <sys/stat.h>
@@ -19,48 +20,41 @@
 extern "C" {
 #endif
 
-#define PV_DISPLAY_PROGRESS	1
-#define PV_DISPLAY_TIMER	2
-#define PV_DISPLAY_ETA		4
-#define PV_DISPLAY_RATE		8
-#define PV_DISPLAY_AVERAGERATE	16
-#define PV_DISPLAY_BYTES	32
-#define PV_DISPLAY_NAME		64
-#define PV_DISPLAY_BUFPERCENT	128
-#define PV_DISPLAY_OUTPUTBUF	256
-#define PV_DISPLAY_FINETA	512
+/*
+ * Types of display component that make up an output string.
+ */
+typedef enum {
+  PV_COMPONENT_STRING,		/* fixed string */
+  PV_COMPONENT_PROGRESS,	/* progress bar, with percentage if known */
+  PV_COMPONENT_BYTES,		/* number of bytes transferred */
+  PV_COMPONENT_TIMER,		/* elapsed time */
+  PV_COMPONENT_RATE,		/* current transfer rate */
+  PV_COMPONENT_AVERAGERATE,	/* average transfer rate */
+  PV_COMPONENT_ETA,		/* estimated time remaining until completion */
+  PV_COMPONENT_FINETA,		/* estimated time of completion */
+  PV_COMPONENT_NAME,		/* name prefix */
+  PV_COMPONENT_BUFPERCENT,	/* percentage of buffer used */
+  PV_COMPONENT_OUTPUTBUF,	/* recent bytes in output buffer */
+  PV_COMPONENT__MAX
+} pv_display_component;
 
-#define RATE_GRANULARITY	100000	 /* usec between -L rate chunks */
-#define RATE_BURST_WINDOW	5	 /* rate burst window (multiples of rate) */
-#define REMOTE_INTERVAL		100000	 /* usec between checks for -R */
-#define BUFFER_SIZE		409600	 /* default transfer buffer size */
-#define BUFFER_SIZE_MAX		524288	 /* max auto transfer buffer size */
-#define MAX_READ_AT_ONCE	524288	 /* max to read() in one go */
-#define MAX_WRITE_AT_ONCE	524288	 /* max to write() in one go */
-#define TRANSFER_READ_TIMEOUT	90000	 /* usec to time reads out at */
-#define TRANSFER_WRITE_TIMEOUT	900000	 /* usec to time writes out at */
+#define PV_SIZEOF_COMPONENT_STR	1024	/* size of buffer for each component */
+
+#define RATE_GRANULARITY	100000000	 /* nsec between -L rate chunks */
+#define RATE_BURST_WINDOW	5	 	 /* rate burst window (multiples of rate) */
+#define REMOTE_INTERVAL		100000000	 /* nsec between checks for -R */
+#define BUFFER_SIZE		(size_t) 409600	 /* default transfer buffer size */
+#define BUFFER_SIZE_MAX		(size_t) 524288	 /* max auto transfer buffer size */
+#define MAX_READ_AT_ONCE	(size_t) 524288	 /* max to read() in one go */
+#define MAX_WRITE_AT_ONCE	(size_t) 524288	 /* max to write() in one go */
+#define TRANSFER_READ_TIMEOUT	0.09L		 /* seconds to time reads out at */
+#define TRANSFER_WRITE_TIMEOUT	0.9L		 /* seconds to time writes out at */
 
 #define MAXIMISE_BUFFER_FILL	1
 
-
-typedef struct pvhistory {
-	long long   total_bytes;
-	long double elapsed_sec;
-} pvhistory_t;
-
 #define PV_SIZEOF_DEFAULT_FORMAT	512
 #define PV_SIZEOF_CWD			4096
 #define PV_SIZEOF_LASTOUTPUT_BUFFER	256
-#define PV_SIZEOF_STR_NAME		512
-#define PV_SIZEOF_STR_TRANSFERRED	128
-#define PV_SIZEOF_STR_BUFPERCENT	128
-#define PV_SIZEOF_STR_TIMER		128
-#define PV_SIZEOF_STR_RATE		128
-#define PV_SIZEOF_STR_AVERAGE_RATE	128
-#define PV_SIZEOF_STR_PROGRESS		1024
-#define PV_SIZEOF_STR_LASTOUTPUT	512
-#define PV_SIZEOF_STR_ETA		128
-#define PV_SIZEOF_STR_FINETA		128
 #define PV_FORMAT_ARRAY_MAX		100
 #define PV_SIZEOF_CRS_LOCK_FILE		1024
 
@@ -70,128 +64,176 @@ typedef struct pvhistory {
 #define PV_SIZEOF_DISPLAY_NAME		512
 
 
+/*
+ * Structure for data shared between multiple "pv -c" instances.
+ */
+struct pvcursorstate_s {
+	int y_topmost;		/* terminal row of topmost "pv" instance */
+	bool tty_tostop_added;	/* whether any instance had to set TOSTOP on the terminal */
+};
+
+
 /*
  * Structure for holding PV internal state. Opaque outside the PV library.
  */
 struct pvstate_s {
+	/******************
+	 * Program status *
+	 ******************/
+	struct {
+		/*@only@*/ char *program_name;	 /* program name for error reporting */
+		char cwd[PV_SIZEOF_CWD];	 /* current working directory for relative path */
+		int current_input_file;		 /* index of current file being read */
+		int exit_status; 		 /* exit status to give (0=OK) */
+	} status;
+
 	/***************
 	 * Input files *
 	 ***************/
-	int input_file_count;		 /* number of input files */
-	const char **input_files;	 /* input files (0=first) */
+	struct {
+		unsigned int file_count;	 /* number of input files */
+		/*@only@*/ /*@null@*/ char **filename; /* input filenames */
+	} files;
 
 	/*******************
 	 * Program control *
 	 *******************/
-	bool force;                      /* display even if not on terminal */
-	bool cursor;                     /* use cursor positioning */
-	bool numeric;                    /* numeric output only */
-	bool wait;                       /* wait for data before display */
-	bool linemode;                   /* count lines instead of bytes */
-	bool bits;			 /* report bits instead of bytes */
-	bool null;                       /* lines are null-terminated */
-	bool no_op;                      /* do nothing other than pipe data */
-	unsigned int skip_errors;        /* skip read errors counter */
-	bool stop_at_size;               /* set if we stop at "size" bytes */
-	bool sync_after_write;           /* set if we sync after every write */
-	bool direct_io;                  /* set if O_DIRECT is to be used */
-	bool direct_io_changed;          /* set when direct_io is changed */
-	bool no_splice;                  /* never use splice() */
-	unsigned long long rate_limit;   /* rate limit, in bytes per second */
-	unsigned long long target_buffer_size;  /* buffer size (0=default) */
-	unsigned long long size;         /* total size of data */
-	double interval;                 /* interval between updates */
-	double delay_start;              /* delay before first display */
-	unsigned int watch_pid;		 /* process to watch fds of */
-	int watch_fd;			 /* fd to watch */
-	unsigned int width;              /* screen width */
-	unsigned int height;             /* screen height */
-	const char *name;		 /* display name */
-	char default_format[PV_SIZEOF_DEFAULT_FORMAT];	 /* default format string */
-	const char *format_string;	 /* output format string */
-
-	/******************
-	 * Program status *
-	 ******************/
-	const char *program_name;	 /* program name for error reporting */
-	char cwd[PV_SIZEOF_CWD];	 /* current working directory for relative path */
-	const char *current_file;	 /* current file being read */
-	int exit_status; 		 /* exit status to give (0=OK) */
+	struct {
+		bool force;                      /* display even if not on terminal */
+		bool cursor;                     /* use cursor positioning */
+		bool numeric;                    /* numeric output only */
+		bool wait;                       /* wait for data before display */
+		bool linemode;                   /* count lines instead of bytes */
+		bool bits;			 /* report bits instead of bytes */
+		bool decimal_units;		 /* use decimal prefixes */
+		bool null_terminated_lines;      /* lines are null-terminated */
+		bool no_display;                 /* do nothing other than pipe data */
+		unsigned int skip_errors;        /* skip read errors counter */
+		off_t error_skip_block;          /* skip block size, 0 for adaptive */
+		bool stop_at_size;               /* set if we stop at "size" bytes */
+		bool sync_after_write;           /* set if we sync after every write */
+		bool direct_io;                  /* set if O_DIRECT is to be used */
+		bool direct_io_changed;          /* set when direct_io is changed */
+		bool no_splice;                  /* never use splice() */
+		bool discard_input;              /* write nothing to stdout */
+		off_t rate_limit;                /* rate limit, in bytes per second */
+		size_t target_buffer_size;       /* buffer size (0=default) */
+		off_t size;                      /* total size of data */
+		double interval;                 /* interval between updates */
+		double delay_start;              /* delay before first display */
+		pid_t watch_pid;		 /* process to watch fds of */
+		int watch_fd;			 /* fd to watch */
+		unsigned int average_rate_window; /* time window in seconds for average rate calculations */
+		unsigned int width;              /* screen width */
+		unsigned int height;             /* screen height */
+		bool width_set_manually;	 /* width was set manually, not detected */
+		bool height_set_manually;	 /* height was set manually, not detected */
+		/*@only@*/ /*@null@*/ char *name;		 /* display name */
+		char default_format[PV_SIZEOF_DEFAULT_FORMAT];	 /* default format string */
+		/*@only@*/ /*@null@*/ char *format_string;	 /* output format string */
+	} control;
 
 	/*******************
 	 * Signal handling *
 	 *******************/
-	int pv_sig_old_stderr;		 /* see pv_sig_ttou() */
-	struct timeval pv_sig_tstp_time; /* see pv_sig_tstp() / __cont() */
-	struct timeval pv_sig_toffset;		 /* total time spent stopped */
-	volatile sig_atomic_t pv_sig_newsize;	 /* whether we need to get term size again */
-	volatile sig_atomic_t pv_sig_abort;	 /* whether we need to abort right now */
-	volatile sig_atomic_t reparse_display;	 /* whether to re-check format string */
-	struct sigaction pv_sig_old_sigpipe;
-	struct sigaction pv_sig_old_sigttou;
-	struct sigaction pv_sig_old_sigtstp;
-	struct sigaction pv_sig_old_sigcont;
-	struct sigaction pv_sig_old_sigwinch;
-	struct sigaction pv_sig_old_sigint;
-	struct sigaction pv_sig_old_sighup;
-	struct sigaction pv_sig_old_sigterm;
+	struct {
+		int old_stderr;		 /* see pv_sig_ttou() */
+		bool pv_tty_tostop_added;	 /* whether we had to set TOSTOP on the terminal */
+		struct timespec tstp_time;	 /* see pv_sig_tstp() / __cont() */
+		struct timespec toffset;	 /* total time spent stopped */
+#ifdef SA_SIGINFO
+		volatile sig_atomic_t rxusr2;	 /* whether SIGUSR2 was received */
+		volatile pid_t sender;		 /* PID of sending process for SIGUSR2 */
+#endif
+		/* old signal handlers to restore in pv_sig_fini(). */
+		struct sigaction old_sigpipe;
+		struct sigaction old_sigttou;
+		struct sigaction old_sigtstp;
+		struct sigaction old_sigcont;
+		struct sigaction old_sigwinch;
+		struct sigaction old_sigint;
+		struct sigaction old_sighup;
+		struct sigaction old_sigterm;
+#ifdef SA_SIGINFO
+		struct sigaction old_sigusr2;
+#endif
+		struct sigaction old_sigalrm;
+	} signal;
+
+	/*******************
+	 * Transient flags *
+	 *******************/
+	struct {
+		volatile sig_atomic_t reparse_display;	 /* whether to re-check format string */
+		volatile sig_atomic_t terminal_resized;	 /* whether we need to get term size again */
+		volatile sig_atomic_t trigger_exit;	 /* whether we need to abort right now */
+	} flag;
 
 	/*****************
 	 * Display state *
 	 *****************/
-	long percentage;
-	long double prev_elapsed_sec;
-	long double prev_rate;
-	long double prev_trans;
-
-	/* Keep track of progress over last intervals to compute current average rate. */
-	pvhistory_t *history;            /* state at previous intervals (circular buffer) */
-	int history_len;		 /* total size */
-	int history_interval;		 /* seconds between each history entry */
-	int history_first;
-	int history_last;
-	long double current_avg_rate;    /* current average rate over last history intervals */
-	
-	unsigned long long initial_offset;
-	char *display_buffer;
-	long display_buffer_size;
-	int lastoutput_length;		 /* number of last-output bytes to show */
-	unsigned char lastoutput_buffer[PV_SIZEOF_LASTOUTPUT_BUFFER];
-	int prev_width;			 /* screen width last time we were called */
-	int prev_length;		 /* length of last string we output */
-	char str_name[PV_SIZEOF_STR_NAME];
-	char str_transferred[PV_SIZEOF_STR_TRANSFERRED];
-	char str_bufpercent[PV_SIZEOF_STR_BUFPERCENT];
-	char str_timer[PV_SIZEOF_STR_TIMER];
-	char str_rate[PV_SIZEOF_STR_RATE];
-	char str_average_rate[PV_SIZEOF_STR_AVERAGE_RATE];
-	char str_progress[PV_SIZEOF_STR_PROGRESS];
-	char str_lastoutput[PV_SIZEOF_STR_LASTOUTPUT];
-	char str_eta[PV_SIZEOF_STR_ETA];
-	char str_fineta[PV_SIZEOF_STR_FINETA];
-	unsigned long components_used;	 /* bitmask of components used */
 	struct {
-		const char *string;
-		int length;
-	} format[PV_FORMAT_ARRAY_MAX];
-	bool display_visible;		 /* set once anything written to terminal */
+		/*@only@*/ /*@null@*/ char *display_buffer;	/* buffer for display string */
+		size_t display_buffer_size;	 /* size allocated to display buffer */
+		size_t display_string_len;	 /* length of string in display buffer */
+		unsigned int prev_screen_width;	 /* screen width last time we were called */
+		bool display_visible;		 /* set once anything written to terminal */
+
+		int percentage;			 /* transfer percentage completion */
+
+		long double prev_elapsed_sec;	 /* elapsed sec at which rate last calculated */
+		long double prev_rate;		 /* last calculated instantaneous transfer rate */
+		long double prev_trans;		 /* bytes transferred since last rate calculation */
+
+		/* Keep track of progress over last intervals to compute current average rate. */
+		/*@null@*/ struct {	 /* state at previous intervals (circular buffer) */
+			long double elapsed_sec;	/* time since start of transfer */
+			off_t total_bytes;		/* amount transferred by that time */
+		} *history;
+		size_t history_len;		 /* total size of history array */
+		int history_interval;		 /* seconds between each history entry */
+		size_t history_first;		 /* index of oldest entry */
+		size_t history_last;		 /* index of newest entry */
+		long double current_avg_rate;    /* current average rate over last history intervals */
+
+		off_t initial_offset;		 /* offset when first opened (when watching fds) */
+
+		size_t lastoutput_length;	 /* number of last-output bytes to show */
+		char lastoutput_buffer[PV_SIZEOF_LASTOUTPUT_BUFFER];
+
+		size_t format_segment_count;	 /* number of format string segments */
+		struct {	/* format string broken into display components */
+			pv_display_component type;	/* type of display component */
+			size_t str_start;		/* for strings: start offset */
+			size_t str_length;		/* for strings: length */
+		} format[PV_FORMAT_ARRAY_MAX];
+
+		struct {	/* display components */
+			bool required;				/* true if included in format */
+			char content[PV_SIZEOF_COMPONENT_STR];	/* string to display */
+			size_t length;				/* number of bytes in string */
+		} component[PV_COMPONENT__MAX];
+
+	} display;
 
 	/********************
 	 * Cursor/IPC state *
 	 ********************/
+	struct {
 #ifdef HAVE_IPC
-	int crs_shmid;			 /* ID of our shared memory segment */
-	int crs_pvcount;		 /* number of `pv' processes in total */
-	int crs_pvmax;			 /* highest number of `pv's seen */
-	int *crs_y_top;			 /* pointer to Y coord of topmost `pv' */
-	int crs_y_lastread;		 /* last value of _y_top seen */
-	int crs_y_offset;		 /* our Y offset from this top position */
-	int crs_needreinit;		 /* counter if we need to reinit cursor pos */
-	bool crs_noipc;			 /* set if we can't use IPC */
+		int shmid;		 /* ID of our shared memory segment */
+		int pvcount;		 /* number of `pv' processes in total */
+		int pvmax;		 /* highest number of `pv's seen */
+		/*@keep@*/ /*@null@*/ struct pvcursorstate_s *shared; /* data shared between instances */
+		int y_lastread;		 /* last value of _y_top seen */
+		int y_offset;		 /* our Y offset from this top position */
+		int needreinit;		 /* counter if we need to reinit cursor pos */
+		bool noipc;		 /* set if we can't use IPC */
 #endif				/* HAVE_IPC */
-	int crs_lock_fd;		 /* fd of lockfile, -1 if none open */
-	char crs_lock_file[PV_SIZEOF_CRS_LOCK_FILE];
-	int crs_y_start;		 /* our initial Y coordinate */
+		int lock_fd;		 /* fd of lockfile, -1 if none open */
+		char lock_file[PV_SIZEOF_CRS_LOCK_FILE];
+		int y_start;		 /* our initial Y coordinate */
+	} cursor;
 
 	/*******************
 	 * Transfer state  *
@@ -201,7 +243,7 @@ struct pvstate_s {
 	 * to the output when splice() is not available.
 	 *
 	 * If buffer_size is smaller than pv__target_bufsize, then
-	 * pv_transfer will try to reallocate transfer_buffer to make
+	 * pv_transfer() will try to reallocate transfer_buffer to make
 	 * buffer_size equal to pv__target_bufsize.
 	 *
 	 * Data from the input files is read into the buffer; read_position
@@ -211,45 +253,50 @@ struct pvstate_s {
 	 * is the offset in the buffer that we've written data up to.  It
 	 * will always be less than or equal to read_position.
 	 */
-	unsigned char *transfer_buffer;	 /* data transfer buffer */
-	unsigned long long buffer_size;	 /* size of buffer */
-	unsigned long read_position;	 /* amount of data in buffer */
-	unsigned long write_position;	 /* buffered data written */
+	struct {
+		/*@only@*/ /*@null@*/ char *transfer_buffer;	 /* data transfer buffer */
+		size_t buffer_size;		 /* size of buffer */
+		size_t read_position;		 /* amount of data in buffer */
+		size_t write_position;		 /* buffered data written */
 
-	/*
-	 * While reading from a file descriptor we keep track of how many
-	 * times in a row we've seen errors (read_errors_in_a_row), and
-	 * whether or not we have put a warning on stderr about read errors
-	 * on this fd (read_error_warning_shown).
-	 *
-	 * Whenever the active file descriptor changes from
-	 * last_read_skip_fd, we reset read_errors_in_a_row and
-	 * read_error_warning_shown to 0 for the new file descriptor and set
-	 * last_read_skip_fd to the new fd number.
-	 *
-	 * This way, we're treating each input file separately.
-	 */
-	int last_read_skip_fd;
-	unsigned long read_errors_in_a_row;
-	int read_error_warning_shown;
+		/*
+		 * While reading from a file descriptor we keep track of how
+		 * many times in a row we've seen errors
+		 * (read_errors_in_a_row), and whether or not we have put a
+		 * warning on stderr about read errors on this fd
+		 * (read_error_warning_shown).
+		 *
+		 * Whenever the active file descriptor changes from
+		 * last_read_skip_fd, we reset read_errors_in_a_row to 0 and
+		 * read_error_warning_shown to false for the new file
+		 * descriptor and set last_read_skip_fd to the new fd
+		 * number.
+		 *
+		 * This way, we're treating each input file separately.
+		 */
+		int last_read_skip_fd;
+		off_t read_errors_in_a_row;
+		bool read_error_warning_shown;
 #ifdef HAVE_SPLICE
-	/*
-	 * These variables are used to keep track of whether splice() was
-	 * used; splice_failed_fd is the file descriptor that splice() last
-	 * failed on, so that we don't keep trying to use it on an fd that
-	 * doesn't support it, and splice_used is set to 1 if splice() was
-	 * used this time within pv_transfer().
-	 */
-	int splice_failed_fd;
-	int splice_used;
+		/*
+		 * These variables are used to keep track of whether
+		 * splice() was used; splice_failed_fd is the file
+		 * descriptor that splice() last failed on, so that we don't
+		 * keep trying to use it on an fd that doesn't support it,
+		 * and splice_used is set to true if splice() was used this
+		 * time within pv_transfer().
+		 */
+		int splice_failed_fd;
+		bool splice_used;
 #endif
-	long to_write;			 /* max to write this time around */
-	long written;			 /* bytes sent to stdout this time */
+		ssize_t to_write;		 /* max to write this time around */
+		ssize_t written;		 /* bytes sent to stdout this time */
+	} transfer;
 };
 
 
 struct pvwatchfd_s {
-	unsigned int watch_pid;		 /* PID to watch */
+	pid_t watch_pid;		 /* PID to watch */
 	int watch_fd;			 /* fd to watch, -1 = not displayed */
 #ifdef __APPLE__
 #else
@@ -260,19 +307,20 @@ struct pvwatchfd_s {
 	char display_name[PV_SIZEOF_DISPLAY_NAME]; /* name to show on progress bar */
 	struct stat sb_fd;		 /* stat of fd symlink */
 	struct stat sb_fd_link;		 /* lstat of fd symlink */
-	unsigned long long size;	 /* size of whole file, 0 if unknown */
-	long long position;		 /* position last seen at */
-	struct timeval start_time;	 /* time we started watching the fd */
+	off_t size;			 /* size of whole file, 0 if unknown */
+	off_t position;			 /* position last seen at */
+	struct timespec start_time;	 /* time we started watching the fd */
+	/*@null@*/ pvstate_t state;	 /* state object for flags and display */
 };
 typedef struct pvwatchfd_s *pvwatchfd_t;
 
 void pv_error(pvstate_t, char *, ...);
 
 int pv_main_loop(pvstate_t);
-void pv_display(pvstate_t, long double, long long, long long);
-long pv_transfer(pvstate_t, int, int *, int *, unsigned long long, long *);
-void pv_set_buffer_size(unsigned long long, int);
-int pv_next_file(pvstate_t, int, int);
+void pv_display(pvstate_t, long double, off_t, off_t);
+ssize_t pv_transfer(pvstate_t, int, bool *, bool *, off_t, long *);
+int pv_next_file(pvstate_t, unsigned int, int);
+/*@out@*/ const char *pv_current_file_name(pvstate_t);
 
 void pv_write_retry(int, const char *, size_t);
 
@@ -292,10 +340,10 @@ void pv_remote_check(pvstate_t);
 void pv_remote_fini(pvstate_t);
 int pv_remote_set(pvstate_t);
 
-int pv_watchfd_info(pvstate_t, pvwatchfd_t, int);
-int pv_watchfd_changed(pvwatchfd_t);
-long long pv_watchfd_position(pvwatchfd_t);
-int pv_watchpid_scanfds(pvstate_t, pvstate_t, unsigned int, int *, pvwatchfd_t *, pvstate_t *, int *);
+int pv_watchfd_info(pvstate_t, pvwatchfd_t, bool);
+bool pv_watchfd_changed(pvwatchfd_t);
+off_t pv_watchfd_position(pvwatchfd_t);
+int pv_watchpid_scanfds(pvstate_t, pid_t, int *, pvwatchfd_t *, int *);
 void pv_watchpid_setname(pvstate_t, pvwatchfd_t);
 
 #ifdef __cplusplus

src/include/pv.h

@@ -1,15 +1,23 @@
 /*
- * Functions used across the program.  Include "config.h" first.
+ * Functions used across the program.
  *
- * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023 Andrew Wood
+ * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2024 Andrew Wood
  *
- * Distributed under the Artistic License v2.0; see `doc/COPYING'.
+ * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */
 
 #ifndef _PV_H
 #define _PV_H 1
 
+#if HAVE_CONFIG_H
+#include "config.h"
+#endif
+
 #include <stdlib.h>
+#include <stdbool.h>
+#include <signal.h>
+#include <time.h>
+#include <sys/types.h>
 
 #ifdef __cplusplus
 extern "C" {
@@ -27,7 +35,7 @@ typedef struct pvstate_s *pvstate_t;
 typedef enum {
   PV_NUMTYPE_INTEGER,
   PV_NUMTYPE_DOUBLE
-} pv_numtype_t;
+} pv_numtype;
 
 
 /*
@@ -35,25 +43,29 @@ typedef enum {
  */
 
 /*
- * Return the given string converted to a double.
+ * Return the given string converted to a double, for use as a time
+ * interval.
  */
-extern double pv_getnum_d(const char *);
+extern double pv_getnum_interval(const char *);
 
 /*
- * Return the given string converted to an unsigned integer.
+ * Return the given string converted to an off_t, for use as a size,
+ * optionally interpreting suffixes in decimal units (multiples of 1000)
+ * instead of multiples of 1024.
  */
-extern unsigned int pv_getnum_ui(const char *);
+extern off_t pv_getnum_size(const char *, bool);
 
 /*
- * Return the given string converted to an unsigned long long.
+ * Return the given string converted to an unsigned integer, for use as a
+ * count such as screen width.
  */
-extern unsigned long long pv_getnum_ull(const char *);
+extern unsigned int pv_getnum_count(const char *, bool);
 
 /*
- * Return zero if the given string is a number of the given type. NB an
+ * Return true if the given string is a number of the given type.  NB an
  * integer is both a valid integer and a valid double.
  */
-extern int pv_getnum_check(const char *, pv_numtype_t);
+extern bool pv_getnum_check(const char *, pv_numtype);
 
 /*
  * String handling wrappers.
@@ -71,6 +83,58 @@ extern int pv_snprintf(char *, size_t, const char *, ...);
  * termination with '\0'.
  */
 extern size_t pv_strlcat(char *, const char *, size_t);
+
+/*
+ * Allocate and return a duplicate of a \0-terminated string, ensuring that
+ * the duplicate is also \0-terminated.  Returns NULL on error.
+ */
+/*@null@ */ /*@only@ */ extern char *pv_strdup(const char *);
+
+/*
+ * Return a pointer to the last matching character in the buffer, or NULL if
+ * not found.
+ */
+/*@null@ */ /*@temp@ */ extern void *pv_memrchr(const void *, int, size_t);
+
+/*
+ * Functions relating to elapsed time.
+ */
+
+/*
+ * Read the current elapsed time, relative to an unspecified point in the
+ * past, and store it in the given timespec buffer.  The time is guaranteed
+ * to not go backwards and does not count time when the system was
+ * suspended.  See clock_gettime(2) with CLOCK_MONOTONIC.
+ */
+void pv_elapsedtime_read(struct timespec *);
+
+/* Set the time in the given timespec to zero. */
+void pv_elapsedtime_zero(struct timespec *);
+
+/* Copy the second timespec into the first.  Analogous to strcpy(3). */
+void pv_elapsedtime_copy(struct timespec *, const struct timespec *);
+
+/*
+ * Return -1, 0, or 1 depending on whether the first time is earlier than,
+ * equal to, or later than the second time.  Analogous to strcmp(3).
+ */
+int pv_elapsedtime_compare(const struct timespec *, const struct timespec *);
+
+/* Add the latter two timespecs and store them in the first timespec. */
+void pv_elapsedtime_add(struct timespec *, const struct timespec *, const struct timespec *);
+
+/* Add a number of nanoseconds to the given timespec. */
+void pv_elapsedtime_add_nsec(struct timespec *, long long);
+
+/* Set the first timespec to the second minus the third. */
+void pv_elapsedtime_subtract(struct timespec *, const struct timespec *, const struct timespec *);
+
+/* Convert a timespec to seconds. */
+long double pv_elapsedtime_seconds(const struct timespec *);
+
+/* Sleep for a number of nanoseconds. */
+void pv_nanosleep(long long);
+
           
 /*
  * Main PV functions.
@@ -79,7 +143,7 @@ extern size_t pv_strlcat(char *, const char *, size_t);
 /*
  * Create a new state structure, and return it, or 0 (NULL) on error.
  */
-extern pvstate_t pv_state_alloc(const char *);
+extern /*@null@*/ /*@only@*/ pvstate_t pv_state_alloc(const char *);
 
 /*
  * Set the formatting string, given a set of old-style formatting options.
@@ -89,8 +153,8 @@ extern void pv_state_set_format(pvstate_t state, bool progress,
 				bool fineta, bool rate,
 				bool average_rate, bool bytes,
 				bool bufpercent,
-				unsigned int lastwritten,
-				const char *name);
+				size_t lastwritten,
+				/*@null@*/ const char *name);
 
 /*
  * Set the various options.
@@ -102,26 +166,29 @@ extern void pv_state_wait_set(pvstate_t, bool);
 extern void pv_state_delay_start_set(pvstate_t, double);
 extern void pv_state_linemode_set(pvstate_t, bool);
 extern void pv_state_bits_set(pvstate_t, bool);
-extern void pv_state_null_set(pvstate_t, bool);
-extern void pv_state_no_op_set(pvstate_t, bool);
+extern void pv_state_decimal_units_set(pvstate_t, bool);
+extern void pv_state_null_terminated_lines_set(pvstate_t, bool);
+extern void pv_state_no_display_set(pvstate_t, bool);
 extern void pv_state_skip_errors_set(pvstate_t, unsigned int);
+extern void pv_state_error_skip_block_set(pvstate_t, off_t);
 extern void pv_state_stop_at_size_set(pvstate_t, bool);
 extern void pv_state_sync_after_write_set(pvstate_t, bool);
 extern void pv_state_direct_io_set(pvstate_t, bool);
-extern void pv_state_rate_limit_set(pvstate_t, unsigned long long);
-extern void pv_state_target_buffer_size_set(pvstate_t, unsigned long long);
+extern void pv_state_rate_limit_set(pvstate_t, off_t);
+extern void pv_state_target_buffer_size_set(pvstate_t, size_t);
 extern void pv_state_no_splice_set(pvstate_t, bool);
-extern void pv_state_size_set(pvstate_t, unsigned long long);
+extern void pv_state_discard_input_set(pvstate_t, bool);
+extern void pv_state_size_set(pvstate_t, off_t);
 extern void pv_state_interval_set(pvstate_t, double);
-extern void pv_state_width_set(pvstate_t, unsigned int);
-extern void pv_state_height_set(pvstate_t, unsigned int);
-extern void pv_state_name_set(pvstate_t, const char *);
-extern void pv_state_format_string_set(pvstate_t, const char *);
-extern void pv_state_watch_pid_set(pvstate_t, unsigned int);
+extern void pv_state_width_set(pvstate_t, unsigned int, bool);
+extern void pv_state_height_set(pvstate_t, unsigned int, bool);
+extern void pv_state_name_set(pvstate_t, /*@null@*/ const char *);
+extern void pv_state_format_string_set(pvstate_t, /*@null@*/ const char *);
+extern void pv_state_watch_pid_set(pvstate_t, pid_t);
 extern void pv_state_watch_fd_set(pvstate_t, int);
-extern void pv_state_average_rate_window_set(pvstate_t, int);
+extern void pv_state_average_rate_window_set(pvstate_t, unsigned int);
 
-extern void pv_state_inputfiles(pvstate_t, int, const char **);
+extern void pv_state_inputfiles(pvstate_t, unsigned int, const char **);
 
 /*
  * Work out whether we are in the foreground.
@@ -136,13 +203,20 @@ extern void pv_screensize(unsigned int *width, unsigned int *height);
 /*
  * Calculate the total size of all input files.
  */
-extern unsigned long long pv_calc_total_size(pvstate_t);
+extern off_t pv_calc_total_size(pvstate_t);
 
 /*
  * Set up signal handlers ready for running the main loop.
  */
 extern void pv_sig_init(pvstate_t);
 
+#ifdef SA_SIGINFO
+/*
+ * Return true if SIGUSR2 has been received, and indicate the sender.
+ */
+extern bool pv_sigusr2_received(pvstate_t, pid_t *);
+#endif
+
 /*
  * Enter the main transfer loop, transferring all input files to the output.
  */
@@ -166,11 +240,11 @@ extern void pv_sig_fini(pvstate_t);
 /*
  * Free a state structure, after which it can no longer be used.
  */
-extern void pv_state_free(pvstate_t);
+extern void pv_state_free(/*@only@*/ pvstate_t);
 
 
 #ifdef ENABLE_DEBUGGING
-# if __STDC_VERSION__ < 199901L
+# if __STDC_VERSION__ < 199901L && !defined(__func__)
 #  if __GNUC__ >= 2
 #   define __func__ __FUNCTION__
 #  else
@@ -182,6 +256,11 @@ extern void pv_state_free(pvstate_t);
 # define debug(x,...) do { } while (0)
 #endif
 
+/*
+ * Set the debugging destination file, if debugging is enabled.
+ */
+void debugging_output_destination(const char *);
+
 /*
  * Output debugging information, if debugging is enabled.
  */

src/library/getopt.c

@@ -1,117 +0,0 @@
-/*
- * Small reimplementation of getopt().
- *
- * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023 Andrew Wood
- *
- * Distributed under the Artistic License v2.0; see `doc/COPYING'.
- */
-
-#include "config.h"
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#ifndef HAVE_GETOPT
-
-char *minioptarg = NULL;
-int minioptind = 0;
-int miniopterr = 1;
-int minioptopt = 0;
-
-
-/*
- * Minimalist getopt() clone, which handles short options only and doesn't
- * permute argv[].
- */
-int minigetopt(int argc, char **argv, char *optstring)
-{
-	static int nextchar = 0;
-	int optchar;
-	int i;
-
-	if ((0 == minioptind) && (argc > 0))
-		minioptind++;
-
-	if ((nextchar > 0) && (0 == argv[minioptind][nextchar])) {
-		minioptind++;
-		nextchar = 0;
-	}
-
-	if (minioptind >= argc)
-		return -1;
-
-	/*
-	 * End of options if arg doesn't start with "-"
-	 */
-	if (argv[minioptind][0] != '-')
-		return -1;
-
-	/*
-	 * End of options if arg is just "-"
-	 */
-	if (0 == argv[minioptind][1])
-		return -1;
-
-	/*
-	 * End of options if arg is "--", but don't include the "--" in the
-	 * non-option arguments
-	 */
-	if (('-' == argv[minioptind][1]) && (0 == argv[minioptind][2])) {
-		minioptind++;
-		return -1;
-	}
-
-	if (0 == nextchar)
-		nextchar = 1;
-
-	optchar = argv[minioptind][nextchar++];
-
-	for (i = 0; optstring[i] != 0 && optstring[i] != optchar; i++) {
-	}
-
-	if (0 == optstring[i]) {
-		minioptopt = optchar;
-		if (miniopterr)
-			fprintf(stderr, "%s: invalid option -- %c\n",
-				argv[0], optchar);
-		return '?';
-	}
-
-	if (optstring[i + 1] != ':') {
-		minioptarg = NULL;
-		return optchar;
-	}
-
-	/*
-	 * At this point we've got an option that takes an argument.
-	 */
-
-	/*
-	 * Next character isn't 0, so the argument is within this array
-	 * element (i.e. "-dFOO").
-	 */
-	if (argv[minioptind][nextchar] != 0) {
-		minioptarg = &(argv[minioptind][nextchar]);
-		nextchar = 0;
-		minioptind++;
-		return optchar;
-	}
-
-	/*
-	 * Argument is in the next array element (i.e. "-d FOO").
-	 */
-	nextchar = 0;
-	minioptind++;
-	if (minioptind >= argc) {
-		fprintf(stderr, "%s: option `-%c' requires an argument\n",
-			argv[0], optchar);
-		return ':';
-	}
-	minioptarg = argv[minioptind++];
-
-	return optchar;
-}
-
-#endif				/* HAVE_GETOPT */
-
-/* EOF */

src/library/gettext.c

@@ -1,113 +0,0 @@
-/*
- * Very minimal (and stupid) implementation of gettext, with a fixed lookup
- * table.
- *
- * This library ONLY handles gettext(), and that only for the basic form (it
- * translates strings to other strings with no other modification, so %2$d
- * style constructs are not dealt with). The setlocale(), bindtextdomain(),
- * and textdomain() functions are ignored.
- *
- * To use this library, create a function that, given a language string,
- * returns a struct msg_table_s[] of msgid and msgstr pairs, with the end
- * of the table being marked by a NULL msgid. The po2table.sh script will do
- * this.
- *
- * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023 Andrew Wood
- *
- * Distributed under the Artistic License v2.0; see `doc/COPYING'.
- */
-
-#include "config.h"
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#ifndef HAVE_GETTEXT
-
-struct msgtable_s {
-	char *msgid;
-	char *msgstr;
-};
-
-#if ENABLE_NLS
-struct msgtable_s *minigettext__gettable(char *);
-#else				/* ENABLE_NLS */
-struct msgtable_s *minigettext__gettable(char *a)
-{
-	return NULL;
-}
-#endif				/* ENABLE_NLS */
-
-char *minisetlocale(char *a, char *b)
-{
-	return NULL;
-}
-
-
-char *minibindtextdomain(char *a, char *b)
-{
-	return NULL;
-}
-
-
-char *minitextdomain(char *a)
-{
-	return NULL;
-}
-
-
-char *minigettext(char *msgid)
-{
-	static struct msgtable_s *table = NULL;
-	static int tried_lang = 0;
-	char *lang;
-	int i;
-
-	if (NULL == msgid)
-		return msgid;
-
-	if (0 == tried_lang) {
-		lang = getenv("LANGUAGE");
-		if (lang)
-			table = minigettext__gettable(lang);
-
-		if (NULL == table) {
-			lang = getenv("LANG");
-			if (lang)
-				table = minigettext__gettable(lang);
-		}
-
-		if (NULL == table) {
-			lang = getenv("LC_ALL");
-			if (lang)
-				table = minigettext__gettable(lang);
-		}
-
-		if (NULL == table) {
-			lang = getenv("LC_MESSAGES");
-			if (lang)
-				table = minigettext__gettable(lang);
-		}
-
-		tried_lang = 1;
-	}
-
-	if (NULL == table)
-		return msgid;
-
-	for (i = 0; table[i].msgid; i++) {
-		if (0 == strcmp(table[i].msgid, msgid)) {
-			if (0 == table[i].msgstr)
-				return msgid;
-			if (0 == table[i].msgstr[0])
-				return msgid;
-			return table[i].msgstr;
-		}
-	}
-
-	return msgid;
-}
-
-#endif				/* HAVE_GETTEXT */
-
-/* EOF */

src/main/debug.c

@@ -1,9 +1,9 @@
 /*
  * Output debugging information.
  *
- * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023 Andrew Wood
+ * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2024 Andrew Wood
  *
- * Distributed under the Artistic License v2.0; see `doc/COPYING'.
+ * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */
 
 #include "config.h"
@@ -18,57 +18,91 @@
 
 
 #ifdef ENABLE_DEBUGGING
+/*@null@*/ static const char *debug_filename = NULL;
+
 /*
- * Output debugging information to the file given in the DEBUG environment
- * variable, if it is defined.
+ * Set the destination for debugging information.
  */
-void debugging_output(const char *function, const char *file, int line,
-		      const char *format, ...)
+void debugging_output_destination(const char *filename)
+{
+	debug_filename = filename;
+}
+
+
+/*
+ * Output debugging information to the file specified earlier by a call to
+ * debugging_output_destination(), if any.
+ */
+void debugging_output(const char *function, const char *file, int line, const char *format, ...)
 {
 	static bool tried_open = false;
 	static FILE *debugfptr = NULL;
-	char *debugfile;
 	va_list ap;
 	time_t t;
 	struct tm *tm;
-	char tbuf[128];
+	char tbuf[128];			 /* flawfinder: ignore */
+
+	/*
+	 * flawfinder note: tbuf is only written to by strftime() which
+	 * takes its size, and we enforce string termination.
+	 */
 
 	if (false == tried_open) {
-		debugfile = getenv("DEBUG");
-		if (NULL != debugfile)
-			debugfptr = fopen(debugfile, "a");
+		if (NULL != debug_filename) {
+			debugfptr = fopen(debug_filename, "a");	/* flawfinder: ignore */
+			/*
+			 * flawfinder note: caller directly controls
+			 * filename, the safest we can manage is to use
+			 * append mode.
+			 */
+		}
 		tried_open = true;
 	}
 
-	if (NULL == debugfptr)
+	if (NULL == debugfptr) {
 		return;
+	}
 
 	(void) time(&t);
 	tm = localtime(&t);
 	tbuf[0] = '\0';
-	if (0 == strftime(tbuf, sizeof(tbuf), "%Y-%m-%d %H:%M:%S", tm))
+	if (0 == strftime(tbuf, sizeof(tbuf), "%Y-%m-%d %H:%M:%S", tm)) {
 		tbuf[0] = '\0';
+	}
+	tbuf[sizeof(tbuf) - 1] = '\0';	    /* enforce termination */
 
-	(void) fprintf(debugfptr, "[%s] (%d) %s (%s:%d): ", tbuf, getpid(),
-		       function, file, line);
+	(void) fprintf(debugfptr, "[%s] (%d) %s (%s:%d): ", tbuf, getpid(), function, file, line);
 
 	va_start(ap, format);
-	(void) vfprintf(debugfptr, format, ap);
+	(void) vfprintf(debugfptr, format, ap);	/* flawfinder: ignore */
 	va_end(ap);
 
+	/*
+	 * flawfinder note: vfprintf format is explicitly controlled by the
+	 * caller of this function - no mitigation possible or desirable.
+	 */
+
 	(void) fprintf(debugfptr, "\n");
 	(void) fflush(debugfptr);
 }
 
 #else				/* ! ENABLE_DEBUGGING */
 
+/*
+ * Stub debugging destination function.
+ */
+void debugging_output_destination( __attribute__((unused))
+				  const char *filename)
+{
+}
+
 /*
  * Stub debugging output function.
  */
-void debugging_output( __attribute__ ((unused))
-		      const char *function, __attribute__ ((unused))
-		      const char *file, __attribute__ ((unused))
-		      int line, __attribute__ ((unused))
+void debugging_output( __attribute__((unused))
+		      const char *function, __attribute__((unused))
+		      const char *file, __attribute__((unused))
+		      int line, __attribute__((unused))
 		      const char *format, ...)
 {
 }

src/main/help.c

@@ -1,23 +1,276 @@
 /*
  * Output command-line help to stdout.
  *
- * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023 Andrew Wood
+ * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2024 Andrew Wood
  *
- * Distributed under the Artistic License v2.0; see `doc/COPYING'.
+ * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */
 
 #include "config.h"
 #include "pv.h"
 #include <stdio.h>
+#include <signal.h>
 #include <stdlib.h>
 #include <string.h>
 #include <errno.h>
+#if defined(ENABLE_NLS) && defined(HAVE_WCHAR_H)
+#include <wchar.h>
+#if defined(HAVE_WCTYPE_H)
+#include <wctype.h>
+#endif
+#endif
 
-struct optdesc_s {
-	char *optshort;
-	char *optlong;
-	char *param;
-	char *description;
+
+/*
+ * Return the number of display columns needed to show the given string.
+ *
+ * To do this, we convert it to a wide character string, and use the wide
+ * character display width function "wcswidth()" on it.
+ *
+ * If NLS is disabled, or the string cannot be converted, this is just the
+ * same as "strlen()".
+ */
+static size_t display_width(const char *string)
+{
+	size_t width;
+
+#if defined(ENABLE_NLS) && defined(HAVE_WCHAR_H)
+	size_t wide_char_count;
+	size_t wide_string_buffer_size;
+	wchar_t *wide_string;
+
+	if (NULL == string)
+		return 0;
+
+	/*@-nullpass@ */
+	/*
+	 * splint note: mbstowcs() manual page on Linux explicitly says it
+	 * takes NULL.
+	 */
+	wide_char_count = mbstowcs(NULL, string, 0);
+	/*@+nullpass@ */
+	if (wide_char_count == (size_t) -1) {
+		debug("%s: %s: %s", "mbstowcs", string, strerror(errno));
+		return strlen(string);	    /* flawfinder: ignore */
+		/*
+		 * flawfinder rationale: we have already checked for NULL,
+		 * and we don't know the size of the originating buffer so
+		 * can't use strnlen(); it is up to the caller to provide a
+		 * terminated string.
+		 */
+	}
+
+	wide_string_buffer_size = sizeof(*wide_string) * (1 + wide_char_count);
+	wide_string = malloc(wide_string_buffer_size);
+	if (NULL == wide_string) {
+		perror("malloc");
+		return strlen(string);	    /* flawfinder: ignore */
+		/* flawfinder rationale: see above. */
+	}
+	memset(wide_string, 0, wide_string_buffer_size);
+
+	if (mbstowcs(wide_string, string, 1 + wide_char_count) == (size_t) -1) {
+		debug("%s: %s: %s", "mbstowcs", string, strerror(errno));
+		width = strlen(string);	    /* flawfinder: ignore */
+		/* flawfinder rationale: see above. */
+	} else if (NULL != wide_string) {
+		/*@-unrecog @ */
+		/* splint seems unable to see the prototype. */
+		width = wcswidth(wide_string, wide_char_count);
+		/*@+unrecog @ */
+	} else {
+		width = 0;
+	}
+
+	free(wide_string);
+
+#else				/* ! defined(ENABLE_NLS) && defined(HAVE_WCHAR_H) */
+	if (NULL == string)
+		return 0;
+
+	width = strlen(string);		    /* flawfinder: ignore */
+	/* flawfinder rationale: see above. */
+#endif				/* defined(ENABLE_NLS) && defined(HAVE_WCHAR_H) */
+
+	return width;
+}
+
+
+/*
+ * The 7-bit ASCII version of display_word_wrap() below - does not
+ * understand multi-byte characters.
+ */
+static void display_word_wrap_7bit(const char *string, size_t display_width, size_t left_margin)
+{
+	const char *start;
+	const char *end;
+
+	if (NULL == string)
+		return;
+
+	start = string;
+
+	while (strlen(start) > display_width) {	/* flawfinder: ignore */
+		/* flawfinder rationale: see above. */
+
+		end = start + display_width;
+		while ((end > start) && (end[0] != ' '))
+			end--;
+		if (end == start) {
+			end = start + display_width;
+		} else {
+			end++;
+		}
+		printf("%.*s", (int) (end - start), start);
+		if (end == start)
+			end++;
+		start = end;
+		if (start[0] != '\0')
+			printf("\n%*s", (int) left_margin, "");
+	}
+
+	printf("%s", start);
+}
+
+
+/*
+ * Output a string to standard output, word wrapping to "display_width"
+ * display character positions, and left-padding any new lines after the
+ * first one with "left_margin" spaces.
+ *
+ * Wide characters are handled if NLS is enabled, but if they can't be, this
+ * falls back to a version which just counts bytes as characters.
+ */
+static void display_word_wrap(const char *string, size_t display_width, size_t left_margin)
+{
+#if defined(ENABLE_NLS) && defined(HAVE_WCHAR_H)
+	size_t wide_char_count;
+	size_t wide_string_buffer_size;
+	wchar_t *wide_string;
+	size_t start_idx, end_idx, chars_remaining;
+
+	if (NULL == string)
+		return;
+
+	/*@-nullpass@ */
+	/* splint note: see earlier mbstowcs() call. */
+	wide_char_count = mbstowcs(NULL, string, 0);
+	/*@+nullpass@ */
+	if (wide_char_count == (size_t) -1) {
+		debug("%s: %s: %s", "mbstowcs", string, strerror(errno));
+		display_word_wrap_7bit(string, display_width, left_margin);
+		return;
+	}
+
+	wide_string_buffer_size = sizeof(*wide_string) * (1 + wide_char_count);
+	wide_string = malloc(wide_string_buffer_size);
+	if (NULL == wide_string) {
+		perror("malloc");
+		display_word_wrap_7bit(string, display_width, left_margin);
+		return;
+	}
+	memset(wide_string, 0, wide_string_buffer_size);
+
+	if (mbstowcs(wide_string, string, 1 + wide_char_count) == (size_t) -1) {
+		debug("%s: %s: %s", "mbstowcs", string, strerror(errno));
+		free(wide_string);
+		display_word_wrap_7bit(string, display_width, left_margin);
+		return;
+	}
+
+	start_idx = 0;
+	chars_remaining = wide_char_count;
+
+	while (chars_remaining > 0 && wcswidth(&(wide_string[start_idx]), chars_remaining) > display_width) {
+		size_t next_idx;
+
+		end_idx = start_idx + display_width;
+		while ((end_idx > start_idx) && (!iswspace(wide_string[end_idx])))
+			end_idx--;
+		if (end_idx == start_idx) {
+			end_idx = start_idx + display_width;
+		} else {
+			end_idx++;
+		}
+
+		next_idx = end_idx;
+		if (end_idx == start_idx)
+			next_idx++;
+
+		while (start_idx < end_idx && start_idx < wide_char_count) {
+			char multi_byte_string[MB_CUR_MAX + 1];	/* flawfinder: ignore */
+			/*
+			 * flawfinder rationale: array is explicitly
+			 * cleared, large enough according to the wctomb()
+			 * manual, and we explicitly terminate the string.
+			 */
+			memset(multi_byte_string, 0, MB_CUR_MAX + 1);
+			if (wctomb(multi_byte_string, wide_string[start_idx]) >= 0) {
+				multi_byte_string[MB_CUR_MAX] = '\0';
+				printf("%s", multi_byte_string);
+			}
+			start_idx++;
+		}
+
+		start_idx = next_idx;
+		if (start_idx < wide_char_count)
+			printf("\n%*s", (int) left_margin, "");
+
+		chars_remaining = wide_char_count - start_idx;
+	}
+
+	while (start_idx < wide_char_count) {
+		char multi_byte_string[MB_CUR_MAX + 1];	/* flawfinder: ignore */
+		/* flawfinder rationale as above. */
+		memset(multi_byte_string, 0, MB_CUR_MAX + 1);
+		if (wctomb(multi_byte_string, wide_string[start_idx]) >= 0) {
+			multi_byte_string[MB_CUR_MAX] = '\0';
+			printf("%s", multi_byte_string);
+		}
+		start_idx++;
+	}
+
+	free(wide_string);
+
+#else				/* ! defined(ENABLE_NLS) && defined(HAVE_WCHAR_H) */
+	display_word_wrap_7bit(string, display_width, left_margin);
+#endif				/* defined(ENABLE_NLS) && defined(HAVE_WCHAR_H) */
+}
+
+
+/*
+ * Structure holding the displayed descriptions of each option - the short
+ * option such as "-s", its long counterpart such as "--size", the name of
+ * its argument such as "SIZE", and the description of what the option does. 
+ * Any of them may be NULL.
+ *
+ * In the initialiser for this structure, translatable strings are wrapped
+ * with N_() to indicate that they are to be translated into the operator's
+ * language by this function at run-time.
+ *
+ * Note that "opt_short" and "opt_long" should never be marked as
+ * translatable, as they must remain consistent across all locales.
+ *
+ * The list is terminated with a NULL opt_short value - to leave a gap, set
+ * opt_short to an empty string instead.
+ */
+struct option_definition_s {
+	/*@null@ */ const char *opt_short;
+	/*@null@ */ const char *opt_long;
+	/*@null@ *//*@observer@ */ const char *opt_argument;
+	/*@null@ *//*@observer@ */ const char *opt_description;
+	struct {
+		/*
+		 * Structure holding the width, in display character
+		 * positions, of the individual parts of the description of
+		 * each option - calculated after initialisation, so that
+		 * translation can be performed.
+		 */
+		size_t opt_short;
+		size_t opt_long;
+		size_t opt_argument;
+		size_t opt_description;
+	} width;
 };
 
 
@@ -26,197 +279,320 @@ struct optdesc_s {
  */
 void display_help(void)
 {
-	struct optdesc_s optlist[] = {
-		{"-p", "--progress", 0,
-		 N_("show progress bar")},
-		{"-t", "--timer", 0,
-		 N_("show elapsed time")},
-		{"-e", "--eta", 0,
-		 N_("show estimated time of arrival (completion)")},
-		{"-I", "--fineta", 0,
-		 N_
-		 ("show absolute estimated time of arrival (completion)")},
-		{"-r", "--rate", 0,
-		 N_("show data transfer rate counter")},
-		{"-a", "--average-rate", 0,
-		 N_("show data transfer average rate counter")},
-		{"-m", "--average-rate-window", N_("SEC"),
-		 N_
-		 ("compute average rate over past SEC seconds (default 30s)")},
-		{"-b", "--bytes", 0,
-		 N_("show number of bytes transferred")},
-		{"-8", "--bits", 0,
-		 N_("show number of bits transferred")},
-		{"-T", "--buffer-percent", 0,
-		 N_("show percentage of transfer buffer in use")},
-		{"-A", "--last-written", _("NUM"),
-		 N_("show NUM bytes last written")},
-		{"-F", "--format", N_("FORMAT"),
-		 N_("set output format to FORMAT")},
-		{"-n", "--numeric", 0,
-		 N_("output percentages, not visual information")},
-		{"-q", "--quiet", 0,
-		 N_("do not output any transfer information at all")},
-		{"", 0, 0, 0},
-		{"-W", "--wait", 0,
-		 N_("display nothing until first byte transferred")},
-		{"-D", "--delay-start", N_("SEC"),
-		 N_("display nothing until SEC seconds have passed")},
-		{"-s", "--size", N_("SIZE"),
-		 N_("set estimated data size to SIZE bytes")},
-		{"-l", "--line-mode", 0,
-		 N_("count lines instead of bytes")},
-		{"-0", "--null", 0,
-		 N_("lines are null-terminated")},
-		{"-i", "--interval", N_("SEC"),
-		 N_("update every SEC seconds")},
-		{"-w", "--width", N_("WIDTH"),
-		 N_("assume terminal is WIDTH characters wide")},
-		{"-H", "--height", N_("HEIGHT"),
-		 N_("assume terminal is HEIGHT rows high")},
-		{"-N", "--name", N_("NAME"),
-		 N_("prefix visual information with NAME")},
-		{"-f", "--force", 0,
-		 N_("output even if standard error is not a terminal")},
-		{"-c", "--cursor", 0,
-		 N_("use cursor positioning escape sequences")},
-		{"", 0, 0, 0},
-		{"-L", "--rate-limit", N_("RATE"),
-		 N_("limit transfer to RATE bytes per second")},
-		{"-B", "--buffer-size", N_("BYTES"),
-		 N_("use a buffer size of BYTES")},
-		{"-C", "--no-splice", 0,
-		 N_("never use splice(), always use read/write")},
-		{"-E", "--skip-errors", 0,
-		 N_("skip read errors in input")},
-		{"-S", "--stop-at-size", 0,
-		 N_("stop after --size bytes have been transferred")},
-		{"-Y", "--sync", 0,
-		 N_("flush cache to disk after every write")},
-		{"-K", "--direct-io", 0,
-		 N_("use direct I/O to bypass cache")},
-#ifdef HAVE_IPC
-		{"-R", "--remote", N_("PID"),
-		 N_("update settings of process PID")},
-#endif				/* HAVE_IPC */
-		{"", 0, 0, 0},
-		{"-P", "--pidfile", N_("FILE"),
-		 N_("save process ID in FILE")},
-		{"", 0, 0, 0},
-		{"-d", "--watchfd", N_("PID[:FD]"),
-		 N_("watch file FD opened by process PID")},
-		{"", 0, 0, 0},
-		{"-h", "--help", 0,
-		 N_("show this help and exit")},
-		{"-V", "--version", 0,
-		 N_("show version information and exit")},
-		{0, 0, 0, 0}
-	};
-	unsigned int i, col1max = 0, tw = 77;
-	char *optbuf;
-	size_t optbuf_size;
-
-	printf(_("Usage: %s [OPTION] [FILE]..."), PROGRAM_NAME);
-	printf("\n%s\n\n",
-	       _
-	       ("Concatenate FILE(s), or standard input, to standard output,\n"
-		"with monitoring."));
-
-	for (i = 0; optlist[i].optshort; i++) {
-		unsigned int width = 0;
-		char *param;
-
-		width = 2 + (unsigned int) strlen(optlist[i].optshort);
-#ifdef HAVE_GETOPT_LONG
-		if (optlist[i].optlong)
-			width +=
-			    2 + (unsigned int) strlen(optlist[i].optlong);
-#endif
-		param = optlist[i].param;
-		if (param)
-			param = _(param);
-		if (param)
-			width += 1 + strlen(param);
-
-		if (width > col1max)
-			col1max = width;
-	}
-
-	col1max++;
-
-	optbuf_size = 16 + col1max;
-	optbuf = malloc(optbuf_size);
-	if (NULL == optbuf) {
-		fprintf(stderr, "%s: %s\n", PROGRAM_NAME, strerror(errno));
-		exit(EXIT_FAILURE);
-	}
-
-	for (i = 0; optlist[i].optshort; i++) {
-		char *param;
-		char *description;
-		char *start;
-		char *end;
-
-		if ('\0' == optlist[i].optshort[0]) {
-			printf("\n");
-			continue;
-		}
-
-		param = optlist[i].param;
-		if (param)
-			param = _(param);
-		description = optlist[i].description;
-		if (description)
-			description = _(description);
-
-		(void) pv_snprintf(optbuf, optbuf_size, "%s%s%s%s%s",
-				   optlist[i].optshort,
-#ifdef HAVE_GETOPT_LONG
-				   optlist[i].optlong ? ", " : "",
-				   optlist[i].
-				   optlong ? optlist[i].optlong : "",
-#else
-				   "", "",
-#endif
-				   param ? " " : "", param ? param : "");
-
-		printf("  %-*s ", (int) (col1max - 2), optbuf);
-
-		if (NULL == description) {
-			printf("\n");
-			continue;
-		}
-
-		start = description;
-
-		while ((unsigned int) strlen(start) > tw - col1max) {
-			end = start + tw - col1max;
-			while ((end > start) && (end[0] != ' '))
-				end--;
-			if (end == start) {
-				end = start + tw - col1max;
-			} else {
-				end++;
-			}
-			printf("%.*s\n%*s ", (int) (end - start), start,
-			       (int) col1max, "");
-			if (end == start)
-				end++;
-			start = end;
-		}
-
-		printf("%s\n", start);
-	}
-
+	struct option_definition_s option_definitions[] = {
+		{ "-p", "--progress", NULL,
+		 N_("show progress bar"),
+		 { 0, 0, 0, 0} },
+		{ "-t", "--timer", NULL,
+		 N_("show elapsed time"),
+		 { 0, 0, 0, 0} },
+		{ "-e", "--eta", NULL,
+		 N_("show estimated time of arrival (completion)"),
+		 { 0, 0, 0, 0} },
+		{ "-I", "--fineta", NULL,
+		 N_("show absolute estimated time of arrival (completion)"),
+		 { 0, 0, 0, 0} },
+		{ "-r", "--rate", NULL,
+		 N_("show data transfer rate counter"),
+		 { 0, 0, 0, 0} },
+		{ "-a", "--average-rate", NULL,
+		 N_("show data transfer average rate counter"),
+		 { 0, 0, 0, 0} },
+		{ "-m", "--average-rate-window", N_("SEC"),
+		 N_("compute average rate over past SEC seconds (default 30s)"),
+		 { 0, 0, 0, 0} },
+		{ "-b", "--bytes", NULL,
+		 N_("show number of bytes transferred"),
+		 { 0, 0, 0, 0} },
+		{ "-8", "--bits", NULL,
+		 N_("show number of bits transferred"),
+		 { 0, 0, 0, 0} },
+		{ "-k", "--si", NULL,
+		 N_("treat suffixes as multiples of 1000 rather than 1024"),
+		 { 0, 0, 0, 0} },
+		{ "-T", "--buffer-percent", NULL,
+		 N_("show percentage of transfer buffer in use"),
+		 { 0, 0, 0, 0} },
+		{ "-A", "--last-written", _("NUM"),
+		 N_("show NUM bytes last written"),
+		 { 0, 0, 0, 0} },
+		{ "-F", "--format", N_("FORMAT"),
+		 N_("set output format to FORMAT"),
+		 { 0, 0, 0, 0} },
+		{ "-n", "--numeric", NULL,
+		 N_("output percentages, not visual information"),
+		 { 0, 0, 0, 0} },
+		{ "-q", "--quiet", NULL,
+		 N_("do not output any transfer information at all"),
+		 { 0, 0, 0, 0} },
+		{ "", NULL, NULL, NULL, { 0, 0, 0, 0} },
+		{ "-W", "--wait", NULL,
+		 N_("display nothing until first byte transferred"),
+		 { 0, 0, 0, 0} },
+		{ "-D", "--delay-start", N_("SEC"),
+		 N_("display nothing until SEC seconds have passed"),
+		 { 0, 0, 0, 0} },
+		{ "-s", "--size", N_("SIZE"),
+		 N_("set estimated data size to SIZE bytes"),
+		 { 0, 0, 0, 0} },
+		{ "-l", "--line-mode", NULL,
+		 N_("count lines instead of bytes"),
+		 { 0, 0, 0, 0} },
+		{ "-0", "--null", NULL,
+		 N_("lines are null-terminated"),
+		 { 0, 0, 0, 0} },
+		{ "-i", "--interval", N_("SEC"),
+		 N_("update every SEC seconds"),
+		 { 0, 0, 0, 0} },
+		{ "-w", "--width", N_("WIDTH"),
+		 N_("assume terminal is WIDTH characters wide"),
+		 { 0, 0, 0, 0} },
+		{ "-H", "--height", N_("HEIGHT"),
+		 N_("assume terminal is HEIGHT rows high"),
+		 { 0, 0, 0, 0} },
+		{ "-N", "--name", N_("NAME"),
+		 N_("prefix visual information with NAME"),
+		 { 0, 0, 0, 0} },
+		{ "-f", "--force", NULL,
+		 N_("output even if standard error is not a terminal"),
+		 { 0, 0, 0, 0} },
+		{ "-c", "--cursor", NULL,
+		 N_("use cursor positioning escape sequences"),
+		 { 0, 0, 0, 0} },
+		{ "", NULL, NULL, NULL, { 0, 0, 0, 0} },
+		{ "-L", "--rate-limit", N_("RATE"),
+		 N_("limit transfer to RATE bytes per second"),
+		 { 0, 0, 0, 0} },
+		{ "-B", "--buffer-size", N_("BYTES"),
+		 N_("use a buffer size of BYTES"),
+		 { 0, 0, 0, 0} },
+		{ "-C", "--no-splice", NULL,
+		 N_("never use splice(), always use read/write"),
+		 { 0, 0, 0, 0} },
+		{ "-E", "--skip-errors", NULL,
+		 N_("skip read errors in input"),
+		 { 0, 0, 0, 0} },
+		{ "-Z", "--error-skip-block", N_("BYTES"),
+		 N_("skip errors in BYTES blocks at a time"),
+		 { 0, 0, 0, 0} },
+		{ "-S", "--stop-at-size", NULL,
+		 N_("stop after --size bytes have been transferred"),
+		 { 0, 0, 0, 0} },
+		{ "-Y", "--sync", NULL,
+		 N_("flush cache to disk after every write"),
+		 { 0, 0, 0, 0} },
+		{ "-K", "--direct-io", NULL,
+		 N_("use direct I/O to bypass cache"),
+		 { 0, 0, 0, 0} },
+		{ "-X", "--discard", NULL,
+		 N_("discard input instead of writing to output"),
+		 { 0, 0, 0, 0} },
+#ifdef SA_SIGINFO
+		{ "-R", "--remote", N_("PID"),
+		 N_("update settings of process PID"),
+		 { 0, 0, 0, 0} },
+#endif				/* SA_SIGINFO */
+		{ "", NULL, NULL, NULL, { 0, 0, 0, 0} },
+		{ "-P", "--pidfile", N_("FILE"),
+		 N_("save process ID in FILE"),
+		 { 0, 0, 0, 0} },
+		{ "", NULL, NULL, NULL, { 0, 0, 0, 0} },
+		{ "-d", "--watchfd", N_("PID[:FD]"),
+		 N_("watch file FD opened by process PID"),
+		 { 0, 0, 0, 0} },
+		{ "", NULL, NULL, NULL, { 0, 0, 0, 0} },
+		{ "-h", "--help", NULL,
+		 N_("show this help and exit"),
+		 { 0, 0, 0, 0} },
+		{ "-V", "--version", NULL,
+		 N_("show version information and exit"),
+		 { 0, 0, 0, 0} },
 #ifdef ENABLE_DEBUGGING
-	printf("\n");
-	printf("%s",
-	       _
-	       ("Debugging is enabled; export the DEBUG environment variable to define the\noutput filename.\n"));
+		{ "-!", "--debug", N_("FILE"),
+		 N_("write debug logs to FILE"),
+		 { 0, 0, 0, 0} },
 #endif
+		{ NULL, NULL, NULL, NULL, { 0, 0, 0, 0} }
+	};
+	unsigned int option_index;
+	size_t widest_option_width = 0;
+	size_t description_left_margin = 0;
+	size_t min_description_width = 50;
+	size_t right_margin = 77;
+	const char *program_description;
+	const char *bug_report_note;
+	unsigned int terminal_width = 0, terminal_height = 0;
+
+	pv_screensize(&terminal_width, &terminal_height);
+	if (terminal_width > 5) {
+		right_margin = (size_t) (terminal_width - 3);
+	}
+
+	/*@-formatconst@ */
+	/*
+	 * splint note: unavoidable use of %s in translated string.  Should
+	 * be hard to exploit - the message catalogue would have to be
+	 * replaced or forced to load from another location.
+	 */
+	printf(_("Usage: %s [OPTION] [FILE]..."), PACKAGE_NAME);
+	/*@+formatconst@ */
 
 	printf("\n");
-	printf(_("Please report any bugs to %s."), BUG_REPORTS_TO);
+
+	/*@-mustfreefresh@ */
+	/*
+	 * splint note: the gettext calls made by _() cause memory leak
+	 * warnings, but in this case it's unavoidable, and mitigated by the
+	 * fact we only translate each string once.
+	 */
+	program_description = _("Concatenate FILE(s), or standard input, to standard output, with monitoring.");
+	if (NULL != program_description) {
+		display_word_wrap(program_description, right_margin, 0);
+		printf("\n");
+	}
+
+	printf("\n");
+
+	/*
+	 * Translate the help text, and calculate the displayed width of
+	 * each part of each option definition.  The total display width of
+	 * the short option, long option, and option argument together form
+	 * the "option" width - we look for the widest one to calculate the
+	 * left margin for all of the descriptions to start at.
+	 */
+	for (option_index = 0; NULL != option_definitions[option_index].opt_short; option_index++) {
+		struct option_definition_s *definition;
+		size_t option_width;
+
+		definition = &(option_definitions[option_index]);
+		option_width = 0;
+
+		definition->width.opt_short = display_width(definition->opt_short);
+		definition->width.opt_long = 0;
+		definition->width.opt_argument = 0;
+		definition->width.opt_description = 0;
+
+		if (NULL != definition->opt_long) {
+			definition->width.opt_long = display_width(definition->opt_long);
+		}
+
+		if (NULL != definition->opt_argument) {
+			/*@observer@ */ const char *translated;
+			translated = _(definition->opt_argument);
+			if (NULL != translated) {
+				definition->opt_argument = translated;
+			}
+			definition->width.opt_argument = display_width(definition->opt_argument);
+		}
+
+		if (NULL != definition->opt_description) {
+			/*@observer@ */ const char *translated;
+			translated = _(definition->opt_description);
+			if (NULL != translated) {
+				definition->opt_description = translated;
+			}
+			definition->width.opt_description = display_width(definition->opt_description);
+		}
+
+		/*
+		 * The option_width is padded with a left margin of 2
+		 * spaces, a ", " between the short and long options, a
+		 * space between the long option and the argument, and two
+		 * spaces after the argument:
+		 *
+		 * "  <short>, <long> <arg>  <description>"
+		 *
+		 * If we don't have getopt_long() then ", <long>" is omitted.
+		 */
+		option_width += 2 + definition->width.opt_short;	/* "  short" */
+#ifdef HAVE_GETOPT_LONG
+		option_width += 2 + definition->width.opt_long;	/* ", <long>" */
+#endif
+		option_width += 1 + definition->width.opt_argument;	/* " ARG" */
+		option_width += 2;	    /* final 2 spaces */
+
+		if (option_width > widest_option_width) {
+			widest_option_width = option_width;
+		}
+	}
+
+	/*
+	 * Set the left margin for the option descriptions, based on the
+	 * widest option width, or (right margin - min_description_width),
+	 * whichever is less, so that there is always room for
+	 * "min_description_width" characters of description.
+	 */
+	description_left_margin = right_margin - min_description_width;
+	if (widest_option_width < description_left_margin) {
+		description_left_margin = widest_option_width;
+	}
+
+	debug("%s: description_left_margin=%d, widest_option_width=%d, right_margin=%d", "help display",
+	      (int) description_left_margin, (int) widest_option_width, (int) right_margin);
+
+	/*
+	 * Display each of the option definitions, word wrapping the
+	 * descriptions.
+	 */
+	for (option_index = 0; NULL != option_definitions[option_index].opt_short; option_index++) {
+		struct option_definition_s *definition;
+		size_t option_width;
+
+		definition = &(option_definitions[option_index]);
+		option_width = 0;
+
+		if (definition->width.opt_short > 0 && NULL != definition->opt_short) {
+			printf("  %s", definition->opt_short);
+			option_width += 2 + definition->width.opt_short;
+		}
+#ifdef HAVE_GETOPT_LONG
+		if (definition->width.opt_long > 0 && NULL != definition->opt_long) {
+			printf(", %s", definition->opt_long);
+			option_width += 2 + definition->width.opt_long;
+		}
+#endif
+		if (definition->width.opt_argument > 0 && NULL != definition->opt_argument) {
+			printf(" %s", definition->opt_argument);
+			option_width += 1 + definition->width.opt_argument;
+		}
+
+		/* Just start a new line if there's no description. */
+		if ((0 == definition->width.opt_description) || (NULL == definition->opt_description)) {
+			printf("\n");
+			continue;
+		}
+
+		/*
+		 * If the option is too wide, start a new line for the
+		 * description.  In both cases, pad with spaces up to the
+		 * description left margin.
+		 */
+		if (option_width > description_left_margin) {
+			printf("\n%*s", (int) description_left_margin, "");
+		} else if (option_width < description_left_margin) {
+			printf("%*s", (int) (description_left_margin - option_width), "");
+		}
+
+		/* Output the description, word wrapped. */
+		display_word_wrap(definition->opt_description, right_margin - description_left_margin,
+				  description_left_margin);
+
+		printf("\n");
+	}
+
+	printf("\n");
+
+	bug_report_note = _("Please report any bugs to: %s");
+	if (NULL != bug_report_note) {
+		/*@-formatconst@ */
+		/*
+		 * splint note: see earlier "formatconst" note.
+		 * flawfinder: same reason.
+		 */
+		printf(bug_report_note, PACKAGE_BUGREPORT);	/* flawfinder: ignore */
+		/*@+formatconst@ */
+	}
+
 	printf("\n");
 }
 

src/main/main.c

@@ -2,15 +2,16 @@
  * Main program entry point - read the command line options, then perform
  * the appropriate actions.
  *
- * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023 Andrew Wood
+ * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2024 Andrew Wood
  *
- * Distributed under the Artistic License v2.0; see `doc/COPYING'.
+ * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */
 
 #include "config.h"
 #include "options.h"
 #include "pv.h"
 
+/* We do not set this because it breaks "dd" - see below. */
 /* #undef MAKE_STDOUT_NONBLOCKING */
 
 #include <stdio.h>
@@ -18,12 +19,12 @@
 #include <errno.h>
 #include <unistd.h>
 #include <fcntl.h>
-#include <termios.h>
 #include <sys/ioctl.h>
 #include <sys/types.h>
+#include <sys/stat.h>
 
 
-int pv_remote_set(opts_t);
+int pv_remote_set(opts_t, pvstate_t);
 void pv_remote_init(void);
 void pv_remote_fini(void);
 
@@ -34,69 +35,144 @@ void pv_remote_fini(void);
  */
 int main(int argc, char **argv)
 {
-	struct termios t, t_save;
-	opts_t opts;
-	pvstate_t state;
-	bool t_saved, t_needs_reset;
+	/*@only@ */ opts_t opts = NULL;
+	/*@only@ */ pvstate_t state = NULL;
 	int retcode = 0;
 
 #ifdef ENABLE_NLS
+	/* Initialise language translation. */
 	(void) setlocale(LC_ALL, "");
 	(void) bindtextdomain(PACKAGE, LOCALEDIR);
 	(void) textdomain(PACKAGE);
 #endif
 
-	opts = opts_parse(argc, argv);
+	/* Parse the command line arguments. */
+	opts = opts_parse(argc >= 0 ? (unsigned int) argc : 0, argv);
 	if (NULL == opts) {
 		debug("%s: %d", "exiting with status", 64);
 		return 64;
 	}
 
+	/* Early exit if necessary, such as with "-h". */
 	if (opts->do_nothing) {
 		debug("%s", "nothing to do - exiting with status 0");
 		opts_free(opts);
 		return 0;
 	}
 
-	/*
-	 * -R specified - send the message, then exit.
-	 */
-	if (opts->remote > 0) {
-		retcode = pv_remote_set(opts);
-		opts_free(opts);
-		return retcode;
-	}
-
 	/*
 	 * Allocate our internal state buffer.
 	 */
 	state = pv_state_alloc(opts->program_name);
 	if (NULL == state) {
-		fprintf(stderr, "%s: %s: %s\n", opts->program_name,
-			_("state allocation failed"), strerror(errno));
+		/*@-mustfreefresh@ */
+		/*
+		 * splint note: the gettext calls made by _() cause memory
+		 * leak warnings, but in this case it's unavoidable, and
+		 * mitigated by the fact we only translate each string once.
+		 */
+		fprintf(stderr, "%s: %s: %s\n", opts->program_name, _("state allocation failed"), strerror(errno));
 		opts_free(opts);
 		debug("%s: %d", "exiting with status", 64);
 		return 64;
+		/*@+mustfreefresh@ */
+	}
+
+	/*
+	 * -R specified - send the message, then exit.
+	 */
+	if (opts->remote > 0) {
+		/* Initialise signal handling. */
+		pv_sig_init(state);
+		/* Send the message. */
+		retcode = pv_remote_set(opts, state);
+		/* Close down the signal handling. */
+		pv_sig_fini(state);
+		/* Free resources. */
+		pv_state_free(state);
+		opts_free(opts);
+		/* Early exit. */
+		return retcode;
 	}
 
 	/*
 	 * Write a PID file if -P was specified.
 	 */
 	if (opts->pidfile != NULL) {
-		FILE *pidfptr;
-		pidfptr = fopen(opts->pidfile, "w");
-		if (NULL == pidfptr) {
-			fprintf(stderr, "%s: %s: %s\n", opts->program_name,
-				opts->pidfile, strerror(errno));
+		char *pidfile_tmp_name;
+		size_t pidfile_tmp_bufsize;
+		int pidfile_tmp_fd;
+		FILE *pidfile_tmp_fptr;
+		mode_t prev_umask;
+
+		pidfile_tmp_bufsize = 16 + strlen(opts->pidfile);	/* flawfinder: ignore */
+		/*
+		 * flawfinder rationale: pidfile was supplied as an argument
+		 * so we have to assume it is \0 terminated.
+		 */
+		pidfile_tmp_name = malloc(pidfile_tmp_bufsize);
+		if (NULL == pidfile_tmp_name) {
+			fprintf(stderr, "%s: %s\n", opts->program_name, strerror(errno));
 			pv_state_free(state);
 			opts_free(opts);
 			return 1;
 		}
-		fprintf(pidfptr, "%d\n", getpid());
-		if (0 != fclose(pidfptr)) {
-			fprintf(stderr, "%s: %s: %s\n", opts->program_name,
-				opts->pidfile, strerror(errno));
+		memset(pidfile_tmp_name, 0, pidfile_tmp_bufsize);
+		(void) pv_snprintf(pidfile_tmp_name, pidfile_tmp_bufsize, "%s.XXXXXX", opts->pidfile);
+
+		/*@-type@ *//* splint doesn't like mode_t */
+		prev_umask = umask(0000);   /* flawfinder: ignore */
+		(void) umask(prev_umask | 0133);	/* flawfinder: ignore */
+
+		/*@-unrecog@ *//* splint doesn't know mkstemp() */
+		pidfile_tmp_fd = mkstemp(pidfile_tmp_name);	/* flawfinder: ignore */
+		/*@+unrecog@ */
+		if (pidfile_tmp_fd < 0) {
+			fprintf(stderr, "%s: %s: %s\n", opts->program_name, pidfile_tmp_name, strerror(errno));
+			(void) umask(prev_umask);	/* flawfinder: ignore */
+			free(pidfile_tmp_name);
+			pv_state_free(state);
+			opts_free(opts);
+			return 1;
 		}
+
+		(void) umask(prev_umask);   /* flawfinder: ignore */
+
+		/*
+		 * flawfinder rationale (umask, mkstemp) - flawfinder
+		 * recommends setting the most restrictive umask possible
+		 * when calling mkstemp(), so this is what we have done.
+		 *
+		 * We get the original umask and OR it with 0133 to make
+		 * sure new files will be at least chmod 644.  Then we put
+		 * the umask back to what it was, after creating the
+		 * temporary file.
+		 */
+
+		/*@+type@ */
+
+		pidfile_tmp_fptr = fdopen(pidfile_tmp_fd, "w");
+		if (NULL == pidfile_tmp_fptr) {
+			fprintf(stderr, "%s: %s: %s\n", opts->program_name, pidfile_tmp_name, strerror(errno));
+			(void) close(pidfile_tmp_fd);
+			(void) remove(pidfile_tmp_name);
+			free(pidfile_tmp_name);
+			pv_state_free(state);
+			opts_free(opts);
+			return 1;
+		}
+
+		fprintf(pidfile_tmp_fptr, "%d\n", getpid());
+		if (0 != fclose(pidfile_tmp_fptr)) {
+			fprintf(stderr, "%s: %s: %s\n", opts->program_name, opts->pidfile, strerror(errno));
+		}
+
+		if (rename(pidfile_tmp_name, opts->pidfile) < 0) {
+			fprintf(stderr, "%s: %s: %s\n", opts->program_name, opts->pidfile, strerror(errno));
+			(void) remove(pidfile_tmp_name);
+		}
+
+		free(pidfile_tmp_name);
 	}
 
 	/*
@@ -104,24 +180,30 @@ int main(int argc, char **argv)
 	 */
 	if (0 == opts->argc) {
 		debug("%s", "no files given - adding fake argument `-'");
-		opts->argv[opts->argc++] = "-";
+		if (!opts_add_file(opts, "-")) {
+			pv_state_free(state);
+			opts_free(opts);
+			return 64;
+		}
 	}
 
 	/*
-	 * Put our list of files into the PV internal state.
+	 * Put our list of input files into the PV internal state.
 	 */
-	pv_state_inputfiles(state, opts->argc,
-			    (const char **) (opts->argv));
+	if (NULL != opts->argv) {
+		pv_state_inputfiles(state, opts->argc, (const char **) (opts->argv));
+	}
 
+	/* Total size calculation, in normal transfer mode. */
 	if (0 == opts->watch_pid) {
 		/*
-		 * If no size was given, and we're not in line mode, try to
-		 * calculate the total size.
+		 * If no size was given, try to calculate the total size.
 		 */
-		if ((0 == opts->size) && (false == opts->linemode)) {
+		if (0 == opts->size) {
+			pv_state_linemode_set(state, opts->linemode);
+			pv_state_null_terminated_lines_set(state, opts->null_terminated_lines);
 			opts->size = pv_calc_total_size(state);
-			debug("%s: %llu", "no size given - calculated",
-			      opts->size);
+			debug("%s: %llu", "no size given - calculated", opts->size);
 		}
 
 		/*
@@ -140,8 +222,8 @@ int main(int argc, char **argv)
 	if ((0 == isatty(STDERR_FILENO))
 	    && (false == opts->force)
 	    && (false == opts->numeric)) {
-		opts->no_op = true;
-		debug("%s", "nothing to display - setting no_op");
+		opts->no_display = true;
+		debug("%s", "nothing to display - setting no_display");
 	}
 
 	/*
@@ -154,13 +236,11 @@ int main(int argc, char **argv)
 		pv_screensize(&width, &height);
 		if (0 == opts->width) {
 			opts->width = width;
-			debug("%s: %u", "auto-detected terminal width",
-			      width);
+			debug("%s: %u", "auto-detected terminal width", width);
 		}
 		if (0 == opts->height) {
 			opts->height = height;
-			debug("%s: %u", "auto-detected terminal height",
-			      height);
+			debug("%s: %u", "auto-detected terminal height", height);
 		}
 	}
 
@@ -188,9 +268,9 @@ int main(int argc, char **argv)
 	 * Copy parameters from options into main state.
 	 */
 	pv_state_interval_set(state, opts->interval);
-	pv_state_width_set(state, opts->width);
-	pv_state_height_set(state, opts->height);
-	pv_state_no_op_set(state, opts->no_op);
+	pv_state_width_set(state, opts->width, opts->width_set_manually);
+	pv_state_height_set(state, opts->height, opts->height_set_manually);
+	pv_state_no_display_set(state, opts->no_display);
 	pv_state_force_set(state, opts->force);
 	pv_state_cursor_set(state, opts->cursor);
 	pv_state_numeric_set(state, opts->numeric);
@@ -198,11 +278,14 @@ int main(int argc, char **argv)
 	pv_state_delay_start_set(state, opts->delay_start);
 	pv_state_linemode_set(state, opts->linemode);
 	pv_state_bits_set(state, opts->bits);
-	pv_state_null_set(state, opts->null);
+	pv_state_decimal_units_set(state, opts->decimal_units);
+	pv_state_null_terminated_lines_set(state, opts->null_terminated_lines);
 	pv_state_skip_errors_set(state, opts->skip_errors);
+	pv_state_error_skip_block_set(state, opts->error_skip_block);
 	pv_state_stop_at_size_set(state, opts->stop_at_size);
 	pv_state_sync_after_write_set(state, opts->sync_after_write);
 	pv_state_direct_io_set(state, opts->direct_io);
+	pv_state_discard_input_set(state, opts->discard_input);
 	pv_state_rate_limit_set(state, opts->rate_limit);
 	pv_state_target_buffer_size_set(state, opts->buffer_size);
 	pv_state_no_splice_set(state, opts->no_splice);
@@ -215,8 +298,7 @@ int main(int argc, char **argv)
 
 	pv_state_set_format(state, opts->progress, opts->timer, opts->eta,
 			    opts->fineta, opts->rate, opts->average_rate,
-			    opts->bytes, opts->bufpercent,
-			    opts->lastwritten, opts->name);
+			    opts->bytes, opts->bufpercent, opts->lastwritten, opts->name);
 
 #ifdef MAKE_STDOUT_NONBLOCKING
 	/*
@@ -225,96 +307,40 @@ int main(int argc, char **argv)
 	 * Note that this can cause problems with (broken) applications
 	 * such as dd.
 	 */
-	fcntl(STDOUT_FILENO, F_SETFL,
-	      O_NONBLOCK | fcntl(STDOUT_FILENO, F_GETFL));
+	fcntl(STDOUT_FILENO, F_SETFL, O_NONBLOCK | fcntl(STDOUT_FILENO, F_GETFL));
 #endif				/* MAKE_STDOUT_NONBLOCKING */
 
-	/*
-	 * Keep track of whether we've saved the terminal attributes and
-	 * whether we need to reset them at the end.
-	 */
-	t_saved = false;
-	t_needs_reset = false;
+	/* Initialise the signal handling. */
+	pv_sig_init(state);
 
-	/*
-	 * Set terminal option TOSTOP so we get signal SIGTTOU if we try to
-	 * write to the terminal while backgrounded.
-	 *
-	 * Also, save the current terminal attributes for later restoration.
-	 */
-	memset(&t, 0, sizeof(t));
-	if (0 != isatty(STDERR_FILENO)) {
-		if (0 == tcgetattr(STDERR_FILENO, &t)) {
-			debug("%s", "saved terminal attributes");
-			t_saved = true;
-		} else {
-			fprintf(stderr, "%s: %s: %s\n", opts->program_name,
-				_("failed to read terminal attributes"),
-				strerror(errno));
-		}
-	}
-	t_save = t;
-	if (t_saved && pv_in_foreground()) {
-		t.c_lflag |= TOSTOP;
-		(void) tcsetattr(STDERR_FILENO, TCSANOW, &t);
-		t_needs_reset = true;
-		debug("%s", "set terminal TOSTOP attribute");
-	}
-
-	if (0 != opts->watch_pid) {
-		if (0 <= opts->watch_fd) {
-			pv_sig_init(state);
-			retcode = pv_watchfd_loop(state);
-			if (t_needs_reset && pv_in_foreground()) {
-				(void) tcsetattr(STDERR_FILENO, TCSANOW,
-						 &t_save);
-			}
-			if (opts->pidfile != NULL) {
-				if (0 != remove(opts->pidfile)) {
-					fprintf(stderr, "%s: %s: %s\n",
-						opts->program_name,
-						opts->pidfile,
-						strerror(errno));
-				}
-			}
-			pv_sig_fini(state);
-		} else {
-			pv_sig_init(state);
-			retcode = pv_watchpid_loop(state);
-			if (t_needs_reset && pv_in_foreground()) {
-				(void) tcsetattr(STDERR_FILENO, TCSANOW,
-						 &t_save);
-			}
-			if (opts->pidfile != NULL) {
-				if (0 != remove(opts->pidfile)) {
-					fprintf(stderr, "%s: %s: %s\n",
-						opts->program_name,
-						opts->pidfile,
-						strerror(errno));
-				}
-			}
-			pv_sig_fini(state);
-		}
-	} else {
-		pv_sig_init(state);
+	/* Run the appropriate main loop. */
+	if (0 == opts->watch_pid) {
+		/* Normal "transfer data" mode. */
 		pv_remote_init();
 		retcode = pv_main_loop(state);
 		pv_remote_fini();
-		if (t_needs_reset && pv_in_foreground()) {
-			(void) tcsetattr(STDERR_FILENO, TCSANOW, &t_save);
-		}
-		if (opts->pidfile != NULL) {
-			if (0 != remove(opts->pidfile)) {
-				fprintf(stderr, "%s: %s: %s\n",
-					opts->program_name, opts->pidfile,
-					strerror(errno));
-			}
-		}
-		pv_sig_fini(state);
+	} else if (0 != opts->watch_pid && -1 == opts->watch_fd) {
+		/* "Watch all file descriptors of another process" mode. */
+		retcode = pv_watchpid_loop(state);
+	} else if (0 != opts->watch_pid && -1 != opts->watch_fd) {
+		/* "Watch a specific file descriptor of another process" mode. */
+		retcode = pv_watchfd_loop(state);
 	}
 
+	/* Clear up the PID file, if one was written. */
+	if (opts->pidfile != NULL) {
+		if (0 != remove(opts->pidfile)) {
+			fprintf(stderr, "%s: %s: %s\n", opts->program_name, opts->pidfile, strerror(errno));
+		}
+	}
+
+	/* Close down the signal handling. */
+	pv_sig_fini(state);
+
+	/* Free the internal PV state. */
 	pv_state_free(state);
 
+	/* Free the data from parsing the command-line arguments. */
 	opts_free(opts);
 
 	debug("%s: %d", "exiting with status", retcode);

src/main/options.c

@@ -1,16 +1,14 @@
 /*
  * Parse command-line options.
  *
- * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023 Andrew Wood
+ * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2024 Andrew Wood
  *
- * Distributed under the Artistic License v2.0; see `doc/COPYING'.
+ * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */
 
 #include "config.h"
 #include "options.h"
-#include "library/getopt.h"
 #include "pv.h"
-#include "pv-internal.h"
 
 #include <stdio.h>
 #include <stdlib.h>
@@ -18,6 +16,9 @@
 #include <errno.h>
 #include <sys/stat.h>
 #include <unistd.h>
+#ifdef HAVE_GETOPT_H
+#include <getopt.h>
+#endif
 
 
 void display_help(void);
@@ -27,101 +28,174 @@ void display_version(void);
 /*
  * Free an opts_t object.
  */
-void opts_free(opts_t opts)
+void opts_free( /*@only@ */ opts_t opts)
 {
 	if (!opts)
 		return;
+	/*@-keeptrans@ */
+	/*
+	 * splint note: we're explicitly being handed the "opts" object to
+	 * free it, so the previously "kept" internally allocated buffers
+	 * are now ours to free.
+	 */
+	if (NULL != opts->name)
+		free(opts->name);
+	if (NULL != opts->format)
+		free(opts->format);
+	if (NULL != opts->pidfile)
+		free(opts->pidfile);
 	if (NULL != opts->argv)
 		free(opts->argv);
+	/*@+keeptrans@ */
 	free(opts);
 }
 
+/*
+ * Add a filename to the list of non-option arguments, returning false on
+ * error.  The filename is not copied - the pointer is stored.
+ */
+bool opts_add_file(opts_t opts, const char *filename)
+{
+	/*@-branchstate@ */
+	if ((opts->argc >= opts->argv_length) || (NULL == opts->argv)) {
+		opts->argv_length = opts->argc + 10;
+		/*@-keeptrans@ */
+		opts->argv = realloc(opts->argv, opts->argv_length * sizeof(char *));
+		/*@+keeptrans@ */
+		if (NULL == opts->argv) {
+			fprintf(stderr, "%s: %s\n", opts->program_name, strerror(errno));
+			opts->argv_length = 0;
+			opts->argc = 0;
+			return false;
+		}
+	}
+	/*@+branchstate@ */
+
+	/*
+	 * splint notes: we turned off "branchstate" above because depending
+	 * on whether we have to extend the array, we change argv from
+	 * "keep" to "only", which is also why we turned off "keeptrans";
+	 * there doesn't seem to be a clean way to tell splint that everyone
+	 * else should not touch argv but we're allowed to reallocate it and
+	 * so is opts_parse.
+	 */
+
+	opts->argv[opts->argc++] = filename;
+
+	return true;
+}
+
 
 /*
  * Parse the given command-line arguments into an opts_t object, handling
- * "help", "license" and "version" options internally.
+ * "help" and "version" options internally.
  *
- * Returns an opts_t, or 0 on error.
+ * Returns an opts_t, or NULL on error.
  *
  * Note that the contents of *argv[] (i.e. the command line parameters)
  * aren't copied anywhere, just the pointers are copied, so make sure the
  * command line data isn't overwritten or argv[1] free()d or whatever.
  */
-opts_t opts_parse(int argc, char **argv)
+/*@null@ */
+/*@only@ */
+opts_t opts_parse(unsigned int argc, char **argv)
 {
 #ifdef HAVE_GETOPT_LONG
+	/*@-nullassign@ */
+	/* splint rationale: NULL is allowed for "flags" in long options. */
 	struct option long_options[] = {
-		{"help", 0, NULL, (int) 'h'},
-		{"version", 0, NULL, (int) 'V'},
-		{"progress", 0, NULL, (int) 'p'},
-		{"timer", 0, NULL, (int) 't'},
-		{"eta", 0, NULL, (int) 'e'},
-		{"fineta", 0, NULL, (int) 'I'},
-		{"rate", 0, NULL, (int) 'r'},
-		{"average-rate", 0, NULL, (int) 'a'},
-		{"bytes", 0, NULL, (int) 'b'},
-		{"bits", 0, NULL, (int) '8'},
-		{"buffer-percent", 0, NULL, (int) 'T'},
-		{"last-written", 1, NULL, (int) 'A'},
-		{"force", 0, NULL, (int) 'f'},
-		{"numeric", 0, NULL, (int) 'n'},
-		{"quiet", 0, NULL, (int) 'q'},
-		{"cursor", 0, NULL, (int) 'c'},
-		{"wait", 0, NULL, (int) 'W'},
-		{"delay-start", 1, NULL, (int) 'D'},
-		{"size", 1, NULL, (int) 's'},
-		{"line-mode", 0, NULL, (int) 'l'},
-		{"null", 0, NULL, (int) '0'},
-		{"interval", 1, NULL, (int) 'i'},
-		{"width", 1, NULL, (int) 'w'},
-		{"height", 1, NULL, (int) 'H'},
-		{"name", 1, NULL, (int) 'N'},
-		{"format", 1, NULL, (int) 'F'},
-		{"rate-limit", 1, NULL, (int) 'L'},
-		{"buffer-size", 1, NULL, (int) 'B'},
-		{"no-splice", 0, NULL, (int) 'C'},
-		{"skip-errors", 0, NULL, (int) 'E'},
-		{"stop-at-size", 0, NULL, (int) 'S'},
-		{"sync", 0, NULL, (int) 'Y'},
-		{"direct-io", 0, NULL, (int) 'K'},
-		{"remote", 1, NULL, (int) 'R'},
-		{"pidfile", 1, NULL, (int) 'P'},
-		{"watchfd", 1, NULL, (int) 'd'},
-		{"average-rate-window", 1, NULL, (int) 'm'},
-		{NULL, 0, NULL, 0}
+		{ "help", 0, NULL, (int) 'h' },
+		{ "version", 0, NULL, (int) 'V' },
+		{ "progress", 0, NULL, (int) 'p' },
+		{ "timer", 0, NULL, (int) 't' },
+		{ "eta", 0, NULL, (int) 'e' },
+		{ "fineta", 0, NULL, (int) 'I' },
+		{ "rate", 0, NULL, (int) 'r' },
+		{ "average-rate", 0, NULL, (int) 'a' },
+		{ "bytes", 0, NULL, (int) 'b' },
+		{ "bits", 0, NULL, (int) '8' },
+		{ "si", 0, NULL, (int) 'k' },
+		{ "buffer-percent", 0, NULL, (int) 'T' },
+		{ "last-written", 1, NULL, (int) 'A' },
+		{ "force", 0, NULL, (int) 'f' },
+		{ "numeric", 0, NULL, (int) 'n' },
+		{ "quiet", 0, NULL, (int) 'q' },
+		{ "cursor", 0, NULL, (int) 'c' },
+		{ "wait", 0, NULL, (int) 'W' },
+		{ "delay-start", 1, NULL, (int) 'D' },
+		{ "size", 1, NULL, (int) 's' },
+		{ "line-mode", 0, NULL, (int) 'l' },
+		{ "null", 0, NULL, (int) '0' },
+		{ "interval", 1, NULL, (int) 'i' },
+		{ "width", 1, NULL, (int) 'w' },
+		{ "height", 1, NULL, (int) 'H' },
+		{ "name", 1, NULL, (int) 'N' },
+		{ "format", 1, NULL, (int) 'F' },
+		{ "rate-limit", 1, NULL, (int) 'L' },
+		{ "buffer-size", 1, NULL, (int) 'B' },
+		{ "no-splice", 0, NULL, (int) 'C' },
+		{ "skip-errors", 0, NULL, (int) 'E' },
+		{ "error-skip-block", 1, NULL, (int) 'Z' },
+		{ "stop-at-size", 0, NULL, (int) 'S' },
+		{ "sync", 0, NULL, (int) 'Y' },
+		{ "direct-io", 0, NULL, (int) 'K' },
+		{ "discard", 0, NULL, (int) 'X' },
+		{ "remote", 1, NULL, (int) 'R' },
+		{ "pidfile", 1, NULL, (int) 'P' },
+		{ "watchfd", 1, NULL, (int) 'd' },
+		{ "average-rate-window", 1, NULL, (int) 'm' },
+#ifdef ENABLE_DEBUGGING
+		{ "debug", 1, NULL, (int) '!' },
+#endif				/* ENABLE_DEBUGGING */
+		{ NULL, 0, NULL, 0 }
 	};
+	/*@+nullassign@ */
 	int option_index = 0;
+#endif				/* HAVE_GETOPT_LONG */
+	char *short_options = "hVpteIrab8kTA:fnqcWD:s:l0i:w:H:N:F:L:B:CEZ:SYKXR:P:d:m:"
+#ifdef ENABLE_DEBUGGING
+	    "!:"
 #endif
-	char *short_options =
-	    "hVpteIrab8TA:fnqcWD:s:l0i:w:H:N:F:L:B:CESYKR:P:d:m:";
+	    ;
 	int c, numopts;
-	unsigned int check_pid;
-	int check_fd;
+	unsigned int check_pid, parse_pid;
+	int check_fd, parse_fd;
 	opts_t opts;
-	char *ptr;
+	char *leafptr;
 
 	opts = calloc(1, sizeof(*opts));
 	if (!opts) {
-		fprintf(stderr, "%s: %s: %s\n", argv[0],
-			_("option structure allocation failed"),
-			strerror(errno));
+		/*@-mustfreefresh@ */
+		/*
+		 * splint note: the gettext calls made by _() cause memory
+		 * leak warnings, but in this case it's unavoidable, and
+		 * mitigated by the fact we only translate each string once.
+		 */
+		fprintf(stderr, "%s: %s: %s\n", argv[0], _("option structure allocation failed"), strerror(errno));
 		return NULL;
+		/*@+mustfreefresh@ */
 	}
 
-	opts->program_name = argv[0];
-	ptr = strrchr(opts->program_name, '/');
-	if (NULL != ptr)
-		opts->program_name = 1 + ptr;
+	leafptr = strrchr(argv[0], '/');
+	if (NULL != leafptr) {
+		opts->program_name = 1 + leafptr;
+	} else {
+		leafptr = argv[0];	    /* avoid splint "keep" warnings */
+		opts->program_name = leafptr;
+	}
 
 	opts->argc = 0;
 	opts->argv = calloc((size_t) (argc + 1), sizeof(char *));
 	if (NULL == opts->argv) {
+		/*@-mustfreefresh@ */
+		/* splint note: as above. */
 		fprintf(stderr, "%s: %s: %s\n", opts->program_name,
-			_("option structure argv allocation failed"),
-			strerror(errno));
-		opts_free(opts);
+			_("option structure argv allocation failed"), strerror(errno));
+		free(opts);		    /* can't call opts_free as argv is not set */
 		return NULL;
+		/*@+mustfreefresh@ */
 	}
+	opts->argv_length = 1 + argc;
 
 	numopts = 0;
 
@@ -131,14 +205,23 @@ opts_t opts_parse(int argc, char **argv)
 	opts->watch_fd = -1;
 	opts->average_rate_window = 30;
 
+	opts->width_set_manually = false;
+	opts->height_set_manually = false;
+
 	do {
 #ifdef HAVE_GETOPT_LONG
-		c = getopt_long(argc, argv,
-				short_options, long_options,
-				&option_index);
+		c = getopt_long((int) argc, argv, short_options, long_options, &option_index);	/* flawfinder: ignore */
 #else
-		c = getopt(argc, argv, short_options);
+		c = getopt((int) argc, argv, short_options);	/* flawfinder: ignore */
 #endif
+		/*
+		 * flawfinder rationale: we have to pass argv to getopt, and
+		 * limiting the argument sizes would be impractical and
+		 * cumbersome (and likely lead to more bugs); so we have to
+		 * trust the system getopt to not have internal buffer
+		 * overflows.
+		 */
+
 		if (c < 0)
 			continue;
 
@@ -151,49 +234,57 @@ opts_t opts_parse(int argc, char **argv)
 			if ('@' == *optarg)
 				break;
 			/* falls through */
+			/*@fallthrough@ */
 		case 'A':
+			/*@fallthrough@ */
 		case 'w':
+			/*@fallthrough@ */
 		case 'H':
+			/*@fallthrough@ */
 		case 'L':
+			/*@fallthrough@ */
 		case 'B':
+			/*@fallthrough@ */
 		case 'R':
+			/*@fallthrough@ */
 		case 'm':
-			if (pv_getnum_check(optarg, PV_NUMTYPE_INTEGER) !=
-			    0) {
-				fprintf(stderr, "%s: -%c: %s\n",
-					opts->program_name, c,
-					_("integer argument expected"));
+			/*@fallthrough@ */
+		case 'Z':
+			if (!pv_getnum_check(optarg, PV_NUMTYPE_INTEGER)) {
+				/*@-mustfreefresh@ *//* see above */
+				fprintf(stderr, "%s: -%c: %s\n", opts->program_name, c, _("integer argument expected"));
 				opts_free(opts);
 				return NULL;
+				/*@+mustfreefresh@ */
 			}
 			break;
 		case 'i':
+			/*@fallthrough@ */
 		case 'D':
-			if (pv_getnum_check(optarg, PV_NUMTYPE_DOUBLE) !=
-			    0) {
-				fprintf(stderr, "%s: -%c: %s\n",
-					opts->program_name, c,
-					_("numeric argument expected"));
+			if (!pv_getnum_check(optarg, PV_NUMTYPE_DOUBLE)) {
+				/*@-mustfreefresh@ *//* see above */
+				fprintf(stderr, "%s: -%c: %s\n", opts->program_name, c, _("numeric argument expected"));
 				opts_free(opts);
 				return NULL;
+				/*@+mustfreefresh@ */
 			}
 			break;
 		case 'd':
 			if (sscanf(optarg, "%u:%d", &check_pid, &check_fd)
 			    < 1) {
+				/*@-mustfreefresh@ *//* see above */
 				fprintf(stderr, "%s: -%c: %s\n",
-					opts->program_name, c,
-					_
-					("process ID or pid:fd pair expected"));
+					opts->program_name, c, _("process ID or pid:fd pair expected"));
 				opts_free(opts);
 				return NULL;
+				/*@+mustfreefresh@ */
 			}
 			if (check_pid < 1) {
-				fprintf(stderr, "%s: -%c: %s\n",
-					opts->program_name, c,
-					_("invalid process ID"));
+				/*@-mustfreefresh@ *//* see above */
+				fprintf(stderr, "%s: -%c: %s\n", opts->program_name, c, _("invalid process ID"));
 				opts_free(opts);
 				return NULL;
+				/*@+mustfreefresh@ */
 			}
 			break;
 		default:
@@ -245,13 +336,16 @@ opts_t opts_parse(int argc, char **argv)
 			opts->bits = true;
 			numopts++;
 			break;
+		case 'k':
+			opts->decimal_units = true;
+			break;
 		case 'T':
 			opts->bufpercent = true;
 			numopts++;
 			opts->no_splice = true;
 			break;
 		case 'A':
-			opts->lastwritten = pv_getnum_ui(optarg);
+			opts->lastwritten = (size_t) pv_getnum_count(optarg, opts->decimal_units);
 			numopts++;
 			opts->no_splice = true;
 			break;
@@ -263,7 +357,7 @@ opts_t opts_parse(int argc, char **argv)
 			numopts++;
 			break;
 		case 'q':
-			opts->no_op = true;
+			opts->no_display = true;
 			numopts++;
 			break;
 		case 'c':
@@ -273,7 +367,7 @@ opts_t opts_parse(int argc, char **argv)
 			opts->wait = true;
 			break;
 		case 'D':
-			opts->delay_start = pv_getnum_d(optarg);
+			opts->delay_start = pv_getnum_interval(optarg);
 			break;
 		case 's':
 			/* Permit "@<filename>" as well as just a number. */
@@ -286,44 +380,51 @@ opts_t opts_parse(int argc, char **argv)
 				memset(&sb, 0, sizeof(sb));
 				rc = stat(size_file, &sb);
 				if (0 == rc) {
-					opts->size = sb.st_size;
+					opts->size = (off_t) (sb.st_size);
 				} else {
+					/*@-mustfreefresh@ *//* see above */
 					fprintf(stderr, "%s: %s %s: %s\n",
 						opts->program_name,
-						_("failed to stat file"),
-						size_file,
-						strerror(errno));
+						_("failed to stat file"), size_file, strerror(errno));
 					opts_free(opts);
 					return NULL;
+					/*@+mustfreefresh@ */
 				}
 			} else {
-				opts->size = pv_getnum_ull(optarg);
+				opts->size = pv_getnum_size(optarg, opts->decimal_units);
 			}
 			break;
 		case 'l':
 			opts->linemode = true;
 			break;
 		case '0':
-			opts->null = true;
+			opts->null_terminated_lines = true;
 			opts->linemode = true;
 			break;
 		case 'i':
-			opts->interval = pv_getnum_d(optarg);
+			opts->interval = pv_getnum_interval(optarg);
 			break;
 		case 'w':
-			opts->width = pv_getnum_ui(optarg);
+			opts->width = pv_getnum_count(optarg, opts->decimal_units);
+			opts->width_set_manually = opts->width == 0 ? false : true;
 			break;
 		case 'H':
-			opts->height = pv_getnum_ui(optarg);
+			opts->height = pv_getnum_count(optarg, opts->decimal_units);
+			opts->height_set_manually = opts->height == 0 ? false : true;
 			break;
 		case 'N':
-			opts->name = optarg;
+			opts->name = pv_strdup(optarg);
+			if (NULL == opts->name) {
+				fprintf(stderr, "%s: -N: %s\n", opts->program_name, strerror(errno));
+				opts_free(opts);
+				return NULL;
+			}
 			break;
 		case 'L':
-			opts->rate_limit = pv_getnum_ull(optarg);
+			opts->rate_limit = pv_getnum_size(optarg, opts->decimal_units);
 			break;
 		case 'B':
-			opts->buffer_size = pv_getnum_ull(optarg);
+			opts->buffer_size = (size_t) pv_getnum_size(optarg, opts->decimal_units);
 			opts->no_splice = true;
 			break;
 		case 'C':
@@ -332,6 +433,9 @@ opts_t opts_parse(int argc, char **argv)
 		case 'E':
 			opts->skip_errors++;
 			break;
+		case 'Z':
+			opts->error_skip_block = pv_getnum_size(optarg, opts->decimal_units);
+			break;
 		case 'S':
 			opts->stop_at_size = true;
 			break;
@@ -341,83 +445,128 @@ opts_t opts_parse(int argc, char **argv)
 		case 'K':
 			opts->direct_io = true;
 			break;
+		case 'X':
+			opts->discard_input = true;
+			opts->no_splice = true;
+			break;
 		case 'R':
-			opts->remote = pv_getnum_ui(optarg);
+			opts->remote = pv_getnum_count(optarg, false);
 			break;
 		case 'P':
-			opts->pidfile = optarg;
+			opts->pidfile = pv_strdup(optarg);
+			if (NULL == opts->pidfile) {
+				fprintf(stderr, "%s: -P: %s\n", opts->program_name, strerror(errno));
+				opts_free(opts);
+				return NULL;
+			}
 			break;
 		case 'F':
-			opts->format = optarg;
+			opts->format = pv_strdup(optarg);
+			if (NULL == opts->format) {
+				fprintf(stderr, "%s: -F: %s\n", opts->program_name, strerror(errno));
+				opts_free(opts);
+				return NULL;
+			}
 			break;
 		case 'd':
-			opts->watch_pid = 0;
-			opts->watch_fd = -1;
+			parse_pid = 0;
+			parse_fd = -1;
 			/* No syntax check here, already done earlier */
-			(void) sscanf(optarg, "%u:%d", &(opts->watch_pid),
-				      &(opts->watch_fd));
+			(void) sscanf(optarg, "%u:%d", &parse_pid, &parse_fd);
+			opts->watch_pid = (pid_t) parse_pid;
+			opts->watch_fd = parse_fd;
 			break;
 		case 'm':
-			opts->average_rate_window = pv_getnum_ui(optarg);
+			opts->average_rate_window = pv_getnum_count(optarg, opts->decimal_units);
 			break;
+#ifdef ENABLE_DEBUGGING
+		case '!':
+			debugging_output_destination(optarg);
+			break;
+#endif				/* ENABLE_DEBUGGING */
 		default:
+			/*@-mustfreefresh@ *//* see above */
+			/*@-formatconst@ */
 #ifdef HAVE_GETOPT_LONG
-			fprintf(stderr,
-				_("Try `%s --help' for more information."),
-				opts->program_name);
+			fprintf(stderr, _("Try `%s --help' for more information."), opts->program_name);
 #else
-			fprintf(stderr,
-				_("Try `%s -h' for more information."),
-				opts->program_name);
+			fprintf(stderr, _("Try `%s -h' for more information."), opts->program_name);
 #endif
+			/*@+formatconst@ */
+			/*
+			 * splint note: formatconst is warning about the use
+			 * of a non constant (translatable) format string;
+			 * this is unavoidable here and the only attack
+			 * vector is through the message catalogue.
+			 */
 			fprintf(stderr, "\n");
 			opts_free(opts);
+			opts = NULL;
 			return NULL;	    /* early return */
+			/*@+mustfreefresh@ */
 		}
 
 	} while (c != -1);
 
+	/*
+	 * splint thinks we can reach here after opts_free() and opts=NULL
+	 * above, so explicitly return here if opts was set to NULL.
+	 */
+	if (NULL == opts)
+		return NULL;
+
 	if (0 != opts->watch_pid) {
-		if (opts->linemode || opts->null || opts->stop_at_size
+		if (opts->linemode || opts->null_terminated_lines || opts->stop_at_size
 		    || (opts->skip_errors > 0) || (opts->buffer_size > 0)
 		    || (opts->rate_limit > 0)) {
+			/*@-mustfreefresh@ *//* see above */
 			fprintf(stderr, "%s: %s\n", opts->program_name,
-				_
-				("cannot use line mode or transfer modifier options when watching file descriptors"));
+				_("cannot use line mode or transfer modifier options when watching file descriptors"));
 			opts_free(opts);
 			return NULL;
+			/*@+mustfreefresh@ */
 		}
 
 		if (opts->cursor) {
+			/*@-mustfreefresh@ *//* see above */
 			fprintf(stderr, "%s: %s\n", opts->program_name,
-				_
-				("cannot use cursor positioning when watching file descriptors"));
+				_("cannot use cursor positioning when watching file descriptors"));
 			opts_free(opts);
 			return NULL;
+			/*@+mustfreefresh@ */
 		}
 
 		if (0 != opts->remote) {
+			/*@-mustfreefresh@ *//* see above */
 			fprintf(stderr, "%s: %s\n", opts->program_name,
-				_
-				("cannot use remote control when watching file descriptors"));
+				_("cannot use remote control when watching file descriptors"));
 			opts_free(opts);
 			return NULL;
+			/*@+mustfreefresh@ */
 		}
 
-		if (optind < argc) {
+		if (optind < (int) argc) {
+			/*@-mustfreefresh@ *//* see above */
 			fprintf(stderr, "%s: %s\n", opts->program_name,
-				_
-				("cannot transfer files when watching file descriptors"));
+				_("cannot transfer files when watching file descriptors"));
 			opts_free(opts);
 			return NULL;
+			/*@+mustfreefresh@ */
 		}
 #ifndef __APPLE__
-		if (0 != access("/proc/self/fdinfo", X_OK)) {
+		if (0 != access("/proc/self/fdinfo", X_OK)) {	/* flawfinder: ignore */
+			/*
+			 * flawfinder rationale: access() is used here as a
+			 * low cost stat() to see whether the path exists at
+			 * all, under a path only modifiable by root, so is
+			 * unlikely to be exploitable.
+			 */
+			/*@-mustfreefresh@ *//* see above */
 			fprintf(stderr, "%s: -d: %s\n", opts->program_name,
-				_
-				("not available on systems without /proc/self/fdinfo"));
+				_("not available on systems without /proc/self/fdinfo"));
 			opts_free(opts);
 			return NULL;
+			/*@+mustfreefresh@ */
 		}
 #endif
 	}
@@ -433,11 +582,18 @@ opts_t opts_parse(int argc, char **argv)
 		opts->bytes = true;
 	}
 
+	/* If -Z was given but not -E, pretend one -E was given too. */
+	if (opts->error_skip_block > 0 && 0 == opts->skip_errors)
+		opts->skip_errors = 1;
+
 	/*
 	 * Store remaining command-line arguments.
 	 */
-	while (optind < argc) {
-		opts->argv[opts->argc++] = argv[optind++];
+	while (optind < (int) argc) {
+		if (!opts_add_file(opts, argv[optind++])) {
+			opts_free(opts);
+			return NULL;
+		}
 	}
 
 	return opts;

src/main/remote.c

@@ -1,9 +1,9 @@
 /*
  * Remote-control functions.
  *
- * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023 Andrew Wood
+ * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2024 Andrew Wood
  *
- * Distributed under the Artistic License v2.0; see `doc/COPYING'.
+ * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */
 
 #include "config.h"
@@ -11,22 +11,20 @@
 #include "pv.h"
 
 #include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
 #include <errno.h>
 #include <signal.h>
 #include <unistd.h>
+#include <fcntl.h>
 #include <sys/types.h>
 #include <sys/time.h>
+#include <sys/stat.h>
 
-#ifdef HAVE_IPC
-#include <sys/ipc.h>
-#include <sys/msg.h>
-#endif				/* HAVE_IPC */
+#ifdef SA_SIGINFO
+void pv_error(pvstate_t, char *, ...);
 
-
-#ifdef HAVE_IPC
 struct remote_msg {
-	long mtype;
 	bool progress;			 /* progress bar flag */
 	bool timer;			 /* timer flag */
 	bool eta;			 /* ETA flag */
@@ -35,76 +33,131 @@ struct remote_msg {
 	bool average_rate;		 /* average rate counter flag */
 	bool bytes;			 /* bytes transferred flag */
 	bool bufpercent;		 /* transfer buffer percentage flag */
-	unsigned int lastwritten;	 /* last-written bytes count */
-	unsigned long long rate_limit;	 /* rate limit, in bytes per second */
-	unsigned long long buffer_size;	 /* buffer size, in bytes (0=default) */
-	unsigned long long size;	 /* total size of data */
+	size_t lastwritten;		 /* last-written bytes count */
+	off_t rate_limit;		 /* rate limit, in bytes per second */
+	size_t buffer_size;		 /* buffer size, in bytes (0=default) */
+	off_t size;			 /* total size of data */
 	double interval;		 /* interval between updates */
 	unsigned int width;		 /* screen width */
 	unsigned int height;		 /* screen height */
-	char name[256];
-	char format[256];
+	bool width_set_manually;	 /* width was set manually, not detected */
+	bool height_set_manually;	 /* height was set manually, not detected */
+	char name[256];			 /* flawfinder: ignore */
+	char format[256];		 /* flawfinder: ignore */
 };
 
-
-static int remote__msgid = -1;
+/*
+ * flawfinder rationale: name and format are always explicitly zeroed and
+ * bounded to one less than their size so they are always \0 terminated.
+ */
 
 
 /*
- * Return a key for use with msgget() which will be unique to the current
- * user.
- *
- * We can't just use ftok() because the queue needs to be user-specific
- * so that a user cannot send messages to another user's process, and we
- * can't easily find out the terminal a given process is connected to in a
- * cross-platform way.
+ * Return a stream pointer, and populate the filename buffer, for a control
+ * file associated with a particular process ID; it will be opened for
+ * writing if "sender" is true.  Returns NULL on error.
  */
-static key_t remote__genkey(void)
+static FILE *pv__control_file(char *filename, size_t bufsize, pid_t control_pid, bool sender)
 {
-	uid_t uid;
-	key_t key;
+	int open_flags, open_mode, control_fd;
+	FILE *control_fptr;
 
-	uid = geteuid();
+	open_flags = O_RDONLY;
+#ifdef O_NOFOLLOW
+	open_flags += O_NOFOLLOW;
+#endif
+	if (sender)
+		open_flags = O_WRONLY | O_CREAT | O_EXCL;
 
-	key = ftok("/tmp", (int) 'P') | uid;
+	open_mode = 0644;
 
-	return key;
+	(void) pv_snprintf(filename, bufsize, "/run/user/%lu/pv.remote.%lu", (unsigned long) geteuid(),
+			   (unsigned long) control_pid);
+	control_fd = open(filename, open_flags, open_mode);	/* flawfinder: ignore */
+
+	/*
+	 * If /run/user/<uid> wasn't usable, try $HOME/.pv instead.
+	 */
+	if (control_fd < 0) {
+		char *home_dir;
+
+		home_dir = getenv("HOME");  /* flawfinder: ignore */
+		if (NULL == home_dir)
+			return NULL;
+		if ('\0' == home_dir[0])
+			return NULL;
+
+		/*
+		 * flawfinder rationale: null and zero-size values are
+		 * rejected, and the destination buffer is bounded.
+		 */
+
+		(void) pv_snprintf(filename, bufsize, "%s/.pv/remote.%lu", home_dir, (unsigned long) control_pid);
+		control_fd = open(filename, open_flags, open_mode);	/* flawfinder: ignore */
+
+		/*
+		 * If the open failed, try creating the $HOME/.pv directory
+		 * first.
+		 */
+		if (control_fd < 0) {
+			(void) pv_snprintf(filename, bufsize, "%s/.pv", home_dir);
+			(void) mkdir(filename, 0700);
+			/* In case of weird umask, explicitly chmod the dir. */
+			(void) chmod(filename, 0700);	/* flawfinder: ignore */
+			(void) pv_snprintf(filename, bufsize, "%s/.pv/remote.%lu", home_dir,
+					   (unsigned long) control_pid);
+			control_fd = open(filename, open_flags, open_mode);	/* flawfinder: ignore */
+		}
+	}
+
+	/*
+	 * flawfinder rationale: the files are in a directory whose parents
+	 * cannot be manipulated, and we are not allowing the final
+	 * component to be a symbolic link.  We are checking that $HOME is
+	 * not NULL, and it's bounded by pv_snprintf() so it can't overshoot
+	 * the filename buffer.  When we chmod $HOME/.pv, we assume that an
+	 * attacker is unlikely to be able to manipulate $HOME's contents to
+	 * make use of us setting $HOME/.pv to mode 700.
+	 */
+
+	if (control_fd < 0)
+		return NULL;
+
+	debug("%s: %s", "control filename", filename);
+
+	control_fptr = fdopen(control_fd, sender ? "wb" : "rb");
+
+	return control_fptr;
 }
 
 
 /*
- * Return a message queue ID that is unique to the current user and the
- * given process ID, or -1 on error.
- */
-static int remote__msgget(void)
-{
-	/* Catch SIGSYS in case msgget() raises it, so we get ENOSYS */
-	(void) signal(SIGSYS, SIG_IGN);
-	return msgget(remote__genkey(), IPC_CREAT | 0600);
-}
-
-
-/*
- * Set the options of a remote process by setting up an IPC message queue,
- * sending a message containing the new options, and then waiting for the
- * message to be consumed by the remote process.
+ * Set the options of a remote process by writing them to a file, sending a
+ * signal to the receiving process, and waiting for the message to be
+ * consumed by the remote process.
  *
  * Returns nonzero on error.
  */
-int pv_remote_set(opts_t opts)
+int pv_remote_set(opts_t opts, pvstate_t state)
 {
+	char control_filename[4096];	 /* flawfinder: ignore */
+	FILE *control_fptr;
 	struct remote_msg msgbuf;
-	struct msqid_ds qbuf;
+	pid_t signal_sender;
 	long timeout;
-	int msgid;
-	unsigned long initial_qnum;
+	bool received;
+
+	/*
+	 * flawfinder rationale: buffer is large enough, explicitly zeroed,
+	 * and always bounded properly as we are only writing to it with
+	 * pv_snprintf().
+	 */
 
 	/*
 	 * Check that the remote process exists.
 	 */
 	if (kill((pid_t) (opts->remote), 0) != 0) {
-		fprintf(stderr, "%s: %u: %s\n", opts->program_name,
-			opts->remote, strerror(errno));
+		pv_error(state, "%u: %s", opts->remote, strerror(errno));
 		return 1;
 	}
 
@@ -128,7 +181,6 @@ int pv_remote_set(opts_t opts)
 	 * Copy parameters into message buffer.
 	 */
 	memset(&msgbuf, 0, sizeof(msgbuf));
-	msgbuf.mtype = (long) (opts->remote);
 	msgbuf.progress = opts->progress;
 	msgbuf.timer = opts->timer;
 	msgbuf.eta = opts->eta;
@@ -144,130 +196,181 @@ int pv_remote_set(opts_t opts)
 	msgbuf.interval = opts->interval;
 	msgbuf.width = opts->width;
 	msgbuf.height = opts->height;
+	msgbuf.width_set_manually = opts->width_set_manually;
+	msgbuf.height_set_manually = opts->height_set_manually;
+
 	if (opts->name != NULL) {
-		strncpy(msgbuf.name, opts->name, sizeof(msgbuf.name) - 1);
+		strncpy(msgbuf.name, opts->name, sizeof(msgbuf.name) - 1);	/* flawfinder: ignore */
 	}
 	if (opts->format != NULL) {
-		strncpy(msgbuf.format, opts->format,
-			sizeof(msgbuf.format) - 1);
+		strncpy(msgbuf.format, opts->format, sizeof(msgbuf.format) - 1);	/* flawfinder: ignore */
 	}
 
-	msgid = remote__msgget();
-	if (msgid < 0) {
-		fprintf(stderr, "%s: %s\n", opts->program_name,
-			strerror(errno));
+	/*
+	 * flawfinder rationale: both name and format are explicitly bounded
+	 * to 1 less than the size of their buffer and the buffer is \0
+	 * terminated by memset() earlier.
+	 */
+
+	/*
+	 * Get the filename and file stream to use for remote control.
+	 */
+	memset(control_filename, 0, sizeof(control_filename));
+	control_fptr = pv__control_file(control_filename, sizeof(control_filename), getpid(), true);
+	if (NULL == control_fptr) {
+		pv_error(state, "%s", strerror(errno));
 		return 1;
 	}
 
-	memset(&qbuf, 0, sizeof(qbuf));
-	if (msgctl(msgid, IPC_STAT, &qbuf) < 0) {
-		fprintf(stderr, "%s: %s\n", opts->program_name,
-			strerror(errno));
+	/*
+	 * Write the message buffer to the remote control file, and close
+	 * it.
+	 */
+	if (1 != fwrite(&msgbuf, sizeof(msgbuf), 1, control_fptr)) {
+		pv_error(state, "%s", strerror(errno));
+		(void) fclose(control_fptr);
+		(void) remove(control_filename);
 		return 1;
 	}
 
-	initial_qnum = qbuf.msg_qnum;
-
-	if (msgsnd(msgid, &msgbuf, sizeof(msgbuf) - sizeof(long), 0) != 0) {
-		fprintf(stderr, "%s: %s\n", opts->program_name,
-			strerror(errno));
+	if (0 != fclose(control_fptr)) {
+		pv_error(state, "%s", strerror(errno));
+		(void) remove(control_filename);
 		return 1;
 	}
 
+	/*
+	 * Send a SIGUSR2 signal to the remote process, to tell it a message
+	 * is ready to read, after clearing our own "SIGUSR2 received" flag.
+	 */
+	signal_sender = 0;
+	(void) pv_sigusr2_received(state, &signal_sender);
+	if (kill((pid_t) (opts->remote), SIGUSR2) != 0) {
+		pv_error(state, "%u: %s", opts->remote, strerror(errno));
+		(void) remove(control_filename);
+		return 1;
+	}
+
+	debug("%s", "message sent");
+
+	/*
+	 * Wait for a signal from the remote process to say it has received
+	 * the message.
+	 */
+
 	timeout = 1100000;
+	received = false;
 
-	while (timeout > 10000) {
+	while (timeout > 10000 && !received) {
 		struct timeval tv;
 
 		memset(&tv, 0, sizeof(tv));
 		tv.tv_sec = 0;
 		tv.tv_usec = 10000;
+		/*@-nullpass@ *//* splint: NULL is OK with select() */
 		(void) select(0, NULL, NULL, NULL, &tv);
+		/*@+nullpass@ */
 		timeout -= 10000;
 
-		/*
-		 * If we can't stat the queue, it must have been deleted.
-		 */
-		memset(&qbuf, 0, sizeof(qbuf));
-		if (msgctl(msgid, IPC_STAT, &qbuf) < 0)
-			break;
-
-		/*
-		 * If the message count is at or below the message count
-		 * before we sent our message, assume it was received.
-		 */
-		if (qbuf.msg_qnum <= initial_qnum) {
-			return 0;
+		if (pv_sigusr2_received(state, &signal_sender)) {
+			if (signal_sender == opts->remote) {
+				debug("%s", "message received");
+				received = true;
+			}
 		}
 	}
 
 	/*
-	 * Message not received - delete it.
+	 * Remove the remote control file.
 	 */
-	memset(&qbuf, 0, sizeof(qbuf));
-	if (msgctl(msgid, IPC_STAT, &qbuf) >= 0) {
-		(void) msgrcv(msgid, &msgbuf,
-			      sizeof(msgbuf) - sizeof(long),
-			      (long) (opts->remote), IPC_NOWAIT);
-		/*
-		 * If this leaves nothing on the queue, remove the
-		 * queue, in case we created one for no reason.
-		 */
-		if (msgctl(msgid, IPC_STAT, &qbuf) >= 0) {
-			if (qbuf.msg_qnum < 1)
-				(void) msgctl(msgid, IPC_RMID, &qbuf);
-		}
+	if (0 != remove(control_filename)) {
+		pv_error(state, "%s", strerror(errno));
 	}
 
-	fprintf(stderr, "%s: %u: %s\n", opts->program_name, opts->remote,
-		_("message not received"));
+	/*
+	 * Return 0 if the message was received.
+	 */
+	if (received)
+		return 0;
+
+	/*@-mustfreefresh@ */
+	/*
+	 * splint note: the gettext calls made by _() cause memory leak
+	 * warnings, but in this case it's unavoidable, and mitigated by the
+	 * fact we only translate each string once.
+	 */
+	pv_error(state, "%u: %s", opts->remote, _("message not received"));
 	return 1;
+	/*@+mustfreefresh @ */
 }
 
 
 /*
- * Check for an IPC remote handling message and, if there is one, replace
- * the current process's options with those being passed in.
+ * Check for a remote control message and, if there is one, replace the
+ * current process's options with those being passed in.
  *
  * NB relies on pv_state_set_format() causing the output format to be
  * reparsed.
  */
 void pv_remote_check(pvstate_t state)
 {
+	pid_t signal_sender;
+	char control_filename[4096];	 /* flawfinder: ignore */
+	FILE *control_fptr;
 	struct remote_msg msgbuf;
-	ssize_t got;
 
-	if (remote__msgid < 0)
+	/* flawfinder rationale: as above. */
+
+	/*
+	 * Return early if a SIGUSR2 signal has not been received.
+	 */
+	signal_sender = 0;
+	if (!pv_sigusr2_received(state, &signal_sender))
 		return;
 
-	memset(&msgbuf, 0, sizeof(msgbuf));
-
-	got =
-	    msgrcv(remote__msgid, &msgbuf, sizeof(msgbuf) - sizeof(long),
-		   getpid(), IPC_NOWAIT);
-	if (got < 0) {
-		/*
-		 * If our queue had been deleted, re-create it.
-		 */
-		if (errno != EAGAIN && errno != ENOMSG) {
-			remote__msgid = remote__msgget();
-		}
+	memset(control_filename, 0, sizeof(control_filename));
+	control_fptr = pv__control_file(control_filename, sizeof(control_filename), signal_sender, false);
+	if (NULL == control_fptr) {
+		pv_error(state, "%s", strerror(errno));
+		return;
 	}
-	if (got < 1)
+
+	/*
+	 * Read the message buffer from the remote control file, and close
+	 * it.
+	 */
+	if (1 != fread(&msgbuf, sizeof(msgbuf), 1, control_fptr)) {
+		pv_error(state, "%s", strerror(errno));
+		(void) fclose(control_fptr);
 		return;
+	}
+
+	if (0 != fclose(control_fptr)) {
+		pv_error(state, "%s", strerror(errno));
+		return;
+	}
+
+	/*
+	 * Send a SIGUSR2 signal to the sending process, to tell it the
+	 * message has been received.
+	 */
+	if (kill(signal_sender, SIGUSR2) != 0) {
+		debug("%u: %s", signal_sender, strerror(errno));
+	}
 
 	debug("%s", "received remote message");
 
 	pv_state_format_string_set(state, NULL);
 	pv_state_name_set(state, NULL);
 
+	msgbuf.name[sizeof(msgbuf.name) - 1] = '\0';
+	msgbuf.format[sizeof(msgbuf.format) - 1] = '\0';
+
 	pv_state_set_format(state, msgbuf.progress, msgbuf.timer,
 			    msgbuf.eta, msgbuf.fineta, msgbuf.rate,
 			    msgbuf.average_rate,
 			    msgbuf.bytes, msgbuf.bufpercent,
-			    msgbuf.lastwritten,
-			    '\0' ==
-			    msgbuf.name[0] ? NULL : strdup(msgbuf.name));
+			    msgbuf.lastwritten, '\0' == msgbuf.name[0] ? NULL : msgbuf.name);
 
 	if (msgbuf.rate_limit > 0)
 		pv_state_rate_limit_set(state, msgbuf.rate_limit);
@@ -278,12 +381,12 @@ void pv_remote_check(pvstate_t state)
 		pv_state_size_set(state, msgbuf.size);
 	if (msgbuf.interval > 0)
 		pv_state_interval_set(state, msgbuf.interval);
-	if (msgbuf.width > 0)
-		pv_state_width_set(state, msgbuf.width);
-	if (msgbuf.height > 0)
-		pv_state_height_set(state, msgbuf.height);
+	if (msgbuf.width > 0 && msgbuf.width_set_manually)
+		pv_state_width_set(state, msgbuf.width, msgbuf.width_set_manually);
+	if (msgbuf.height > 0 && msgbuf.height_set_manually)
+		pv_state_height_set(state, msgbuf.height, msgbuf.height_set_manually);
 	if (msgbuf.format[0] != '\0')
-		pv_state_format_string_set(state, strdup(msgbuf.format));
+		pv_state_format_string_set(state, msgbuf.format);
 }
 
 
@@ -292,7 +395,6 @@ void pv_remote_check(pvstate_t state)
  */
 void pv_remote_init(void)
 {
-	remote__msgid = remote__msgget();
 }
 
 
@@ -301,23 +403,18 @@ void pv_remote_init(void)
  */
 void pv_remote_fini(void)
 {
-	if (remote__msgid >= 0) {
-		struct msqid_ds qbuf;
-		memset(&qbuf, 0, sizeof(qbuf));
-		(void) msgctl(remote__msgid, IPC_RMID, &qbuf);
-	}
 }
 
-#else				/* !HAVE_IPC */
+#else				/* !SA_SIGINFO */
 
 /*
- * Dummy stubs for remote control when we don't have IPC.
+ * Dummy stubs for remote control when we don't have SA_SIGINFO.
  */
 void pv_remote_init(void)
 {
 }
 
-void pv_remote_check(pvstate_t state)
+void pv_remote_check( /*@unused@ */  __attribute__((unused)) pvstate_t state)
 {
 }
 
@@ -325,12 +422,15 @@ void pv_remote_fini(void)
 {
 }
 
-int pv_remote_set(pvstate_t state)
+int pv_remote_set(			 /*@unused@ */
+			 __attribute__((unused)) opts_t opts, /*@unused@ */  __attribute__((unused)) pvstate_t state)
 {
-	fprintf(stderr, "%s\n", _("IPC not supported on this system"));
+	/*@-mustfreefresh@ *//* splint - see above */
+	fprintf(stderr, "%s\n", _("SA_SIGINFO not supported on this system"));
+	/*@+mustfreefresh@ */
 	return 1;
 }
 
-#endif				/* HAVE_IPC */
+#endif				/* SA_SIGINFO */
 
 /* EOF */

src/main/version.c

@@ -1,9 +1,9 @@
 /*
  * Output version information to stdout.
  *
- * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023 Andrew Wood
+ * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2024 Andrew Wood
  *
- * Distributed under the Artistic License v2.0; see `doc/COPYING'.
+ * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */
 
 #include "config.h"
@@ -14,21 +14,22 @@
  */
 void display_version(void)
 {
+	/*@-mustfreefresh@ */
+	/*
+	 * splint note: the gettext calls made by _() cause memory leak
+	 * warnings, but in this case it's unavoidable, and mitigated by the
+	 * fact we only translate each string once.
+	 */
 	/* GNU standard first line format: program and version only */
-	printf("%s %s\n", PROGRAM_NAME, VERSION);
+	printf("%s %s\n", PACKAGE_NAME, PACKAGE_VERSION);
 	/* GNU standard second line format - "Copyright" always in English */
-	printf("Copyright %s %s\n", COPYRIGHT_YEAR, COPYRIGHT_HOLDER);
+	printf("Copyright %s %s\n", "2023", "Andrew Wood");
 	/* GNU standard license line and free software notice */
-	printf("%s\n",
-	       _
-	       ("License: Artistic v2.0 <https://opensource.org/license/artistic-2-0/>"));
-	printf("%s\n",
-	       _
-	       ("This is free software: you are free to change and redistribute it."));
-	printf("%s\n",
-	       _("There is NO WARRANTY, to the extent permitted by law."));
+	printf("%s\n", _("License: GPLv3+ <https://www.gnu.org/licenses/gpl-3.0.html>"));
+	printf("%s\n", _("This is free software: you are free to change and redistribute it."));
+	printf("%s\n", _("There is NO WARRANTY, to the extent permitted by law."));
 	/* Project web site link */
-	printf("\n%s: <%s>\n", _("Project web site"), PROJECT_HOMEPAGE);
+	printf("\n%s: <%s>\n", _("Project web site"), PACKAGE_URL);
 }
 
 /* EOF */

src/nls/pv.pot

@@ -1,453 +0,0 @@
-# SOME DESCRIPTIVE TITLE.
-# Copyright (C) YEAR THE PACKAGE'S COPYRIGHT HOLDER
-# This file is distributed under the same license as the PACKAGE package.
-# FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
-#
-#, fuzzy
-msgid ""
-msgstr ""
-"Project-Id-Version: PACKAGE VERSION\n"
-"Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2023-07-27 20:49+0100\n"
-"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
-"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
-"Language-Team: LANGUAGE <LL@li.org>\n"
-"MIME-Version: 1.0\n"
-"Content-Type: text/plain; charset=CHARSET\n"
-"Content-Transfer-Encoding: 8bit\n"
-
-#: src/pv/cursor.c:86
-msgid "failed to get terminal name"
-msgstr ""
-
-#: src/pv/cursor.c:124
-msgid "failed to open lock file"
-msgstr ""
-
-#: src/pv/cursor.c:158
-msgid "lock attempt failed"
-msgstr ""
-
-#: src/pv/cursor.c:408
-msgid "failed to open terminal"
-msgstr ""
-
-#: src/pv/file.c:124
-msgid "failed to seek to start of output"
-msgstr ""
-
-#: src/pv/file.c:220
-msgid "failed to close file"
-msgstr ""
-
-#: src/pv/file.c:243
-msgid "failed to read file"
-msgstr ""
-
-#: src/pv/file.c:253 src/main/options.c:293
-msgid "failed to stat file"
-msgstr ""
-
-#: src/pv/file.c:262
-msgid "failed to stat output file"
-msgstr ""
-
-#: src/pv/file.c:285
-msgid "input file is output file"
-msgstr ""
-
-#: src/pv/transfer.c:387
-msgid "read failed"
-msgstr ""
-
-#: src/pv/transfer.c:405
-msgid "warning: read errors detected"
-msgstr ""
-
-#: src/pv/transfer.c:420
-msgid "file is not seekable"
-msgstr ""
-
-#: src/pv/transfer.c:483
-msgid "failed to seek past error"
-msgstr ""
-
-#: src/pv/transfer.c:502
-msgid "skipped past read error"
-msgstr ""
-
-#: src/pv/transfer.c:504 src/pv/display.c:723
-msgid "B"
-msgstr ""
-
-#: src/pv/transfer.c:678
-msgid "write failed"
-msgstr ""
-
-#: src/pv/transfer.c:808 src/pv/display.c:646
-msgid "buffer allocation failed"
-msgstr ""
-
-#: src/pv/transfer.c:913
-msgid "select call failed"
-msgstr ""
-
-#: src/pv/watchpid.c:74 src/pv/watchpid.c:85 src/pv/watchpid.c:99
-#: src/pv/watchpid.c:110 src/pv/watchpid.c:151 src/pv/watchpid.c:168
-#: src/pv/watchpid.c:178 src/pv/watchpid.c:192 src/pv/watchpid.c:280
-#: src/pv/watchpid.c:289 src/pv/watchpid.c:322 src/pv/watchpid.c:343
-#: src/pv/loop.c:542 src/pv/loop.c:604 src/pv/loop.c:656
-msgid "pid"
-msgstr ""
-
-#: src/pv/watchpid.c:87 src/pv/watchpid.c:101 src/pv/watchpid.c:112
-#: src/pv/watchpid.c:170 src/pv/watchpid.c:180 src/pv/watchpid.c:194
-msgid "fd"
-msgstr ""
-
-#: src/pv/watchpid.c:115 src/pv/watchpid.c:197
-msgid "not a regular file or block device"
-msgstr ""
-
-#: src/pv/state.c:31
-msgid "history structure allocation failed"
-msgstr ""
-
-#: src/pv/state.c:61
-msgid "none"
-msgstr ""
-
-#: src/pv/display.c:163
-msgid "yzafpnum kMGTPEZY"
-msgstr ""
-
-#: src/pv/display.c:168
-msgid "yzafpnum KMGTPEZY"
-msgstr ""
-
-#: src/pv/display.c:719
-msgid "b"
-msgstr ""
-
-#: src/pv/display.c:784 src/pv/display.c:798
-msgid "b/s"
-msgstr ""
-
-#: src/pv/display.c:788 src/pv/display.c:803
-msgid "/s"
-msgstr ""
-
-#: src/pv/display.c:788 src/pv/display.c:804
-msgid "B/s"
-msgstr ""
-
-#: src/pv/display.c:841 src/pv/display.c:848 src/pv/display.c:912
-msgid "ETA"
-msgstr ""
-
-#: src/main/version.c:24
-msgid "License: Artistic v2.0 <https://opensource.org/license/artistic-2-0/>"
-msgstr ""
-
-#: src/main/version.c:27
-msgid "This is free software: you are free to change and redistribute it."
-msgstr ""
-
-#: src/main/version.c:29
-msgid "There is NO WARRANTY, to the extent permitted by law."
-msgstr ""
-
-#. Project web site link
-#: src/main/version.c:31
-msgid "Project web site"
-msgstr ""
-
-#: src/main/remote.c:223
-msgid "message not received"
-msgstr ""
-
-#: src/main/remote.c:330
-msgid "IPC not supported on this system"
-msgstr ""
-
-#: src/main/help.c:31
-msgid "show progress bar"
-msgstr ""
-
-#: src/main/help.c:33
-msgid "show elapsed time"
-msgstr ""
-
-#: src/main/help.c:35
-msgid "show estimated time of arrival (completion)"
-msgstr ""
-
-#: src/main/help.c:38
-msgid "show absolute estimated time of arrival (completion)"
-msgstr ""
-
-#: src/main/help.c:40
-msgid "show data transfer rate counter"
-msgstr ""
-
-#: src/main/help.c:42
-msgid "show data transfer average rate counter"
-msgstr ""
-
-#: src/main/help.c:43 src/main/help.c:63 src/main/help.c:71
-msgid "SEC"
-msgstr ""
-
-#: src/main/help.c:45
-msgid "compute average rate over past SEC seconds (default 30s)"
-msgstr ""
-
-#: src/main/help.c:47
-msgid "show number of bytes transferred"
-msgstr ""
-
-#: src/main/help.c:49
-msgid "show number of bits transferred"
-msgstr ""
-
-#: src/main/help.c:51
-msgid "show percentage of transfer buffer in use"
-msgstr ""
-
-#: src/main/help.c:52
-msgid "NUM"
-msgstr ""
-
-#: src/main/help.c:53
-msgid "show NUM bytes last written"
-msgstr ""
-
-#: src/main/help.c:54
-msgid "FORMAT"
-msgstr ""
-
-#: src/main/help.c:55
-msgid "set output format to FORMAT"
-msgstr ""
-
-#: src/main/help.c:57
-msgid "output percentages, not visual information"
-msgstr ""
-
-#: src/main/help.c:59
-msgid "do not output any transfer information at all"
-msgstr ""
-
-#: src/main/help.c:62
-msgid "display nothing until first byte transferred"
-msgstr ""
-
-#: src/main/help.c:64
-msgid "display nothing until SEC seconds have passed"
-msgstr ""
-
-#: src/main/help.c:65
-msgid "SIZE"
-msgstr ""
-
-#: src/main/help.c:66
-msgid "set estimated data size to SIZE bytes"
-msgstr ""
-
-#: src/main/help.c:68
-msgid "count lines instead of bytes"
-msgstr ""
-
-#: src/main/help.c:70
-msgid "lines are null-terminated"
-msgstr ""
-
-#: src/main/help.c:72
-msgid "update every SEC seconds"
-msgstr ""
-
-#: src/main/help.c:73
-msgid "WIDTH"
-msgstr ""
-
-#: src/main/help.c:74
-msgid "assume terminal is WIDTH characters wide"
-msgstr ""
-
-#: src/main/help.c:75
-msgid "HEIGHT"
-msgstr ""
-
-#: src/main/help.c:76
-msgid "assume terminal is HEIGHT rows high"
-msgstr ""
-
-#: src/main/help.c:77
-msgid "NAME"
-msgstr ""
-
-#: src/main/help.c:78
-msgid "prefix visual information with NAME"
-msgstr ""
-
-#: src/main/help.c:80
-msgid "output even if standard error is not a terminal"
-msgstr ""
-
-#: src/main/help.c:82
-msgid "use cursor positioning escape sequences"
-msgstr ""
-
-#: src/main/help.c:84
-msgid "RATE"
-msgstr ""
-
-#: src/main/help.c:85
-msgid "limit transfer to RATE bytes per second"
-msgstr ""
-
-#: src/main/help.c:86
-msgid "BYTES"
-msgstr ""
-
-#: src/main/help.c:87
-msgid "use a buffer size of BYTES"
-msgstr ""
-
-#: src/main/help.c:89
-msgid "never use splice(), always use read/write"
-msgstr ""
-
-#: src/main/help.c:91
-msgid "skip read errors in input"
-msgstr ""
-
-#: src/main/help.c:93
-msgid "stop after --size bytes have been transferred"
-msgstr ""
-
-#: src/main/help.c:95
-msgid "flush cache to disk after every write"
-msgstr ""
-
-#: src/main/help.c:97
-msgid "use direct I/O to bypass cache"
-msgstr ""
-
-#: src/main/help.c:99
-msgid "PID"
-msgstr ""
-
-#: src/main/help.c:100
-msgid "update settings of process PID"
-msgstr ""
-
-#: src/main/help.c:103
-msgid "FILE"
-msgstr ""
-
-#: src/main/help.c:104
-msgid "save process ID in FILE"
-msgstr ""
-
-#: src/main/help.c:106
-msgid "PID[:FD]"
-msgstr ""
-
-#: src/main/help.c:107
-msgid "watch file FD opened by process PID"
-msgstr ""
-
-#: src/main/help.c:110
-msgid "show this help and exit"
-msgstr ""
-
-#: src/main/help.c:112
-msgid "show version information and exit"
-msgstr ""
-
-#: src/main/help.c:119
-#, c-format
-msgid "Usage: %s [OPTION] [FILE]..."
-msgstr ""
-
-#: src/main/help.c:122
-msgid ""
-"Concatenate FILE(s), or standard input, to standard output,\n"
-"with monitoring."
-msgstr ""
-
-#: src/main/help.c:215
-msgid ""
-"Debugging is enabled; export the DEBUG environment variable to define the\n"
-"output filename.\n"
-msgstr ""
-
-#: src/main/help.c:219
-#, c-format
-msgid "Please report any bugs to %s."
-msgstr ""
-
-#: src/main/main.c:76
-msgid "state allocation failed"
-msgstr ""
-
-#: src/main/main.c:252
-msgid "failed to read terminal attributes"
-msgstr ""
-
-#: src/main/options.c:106
-msgid "option structure allocation failed"
-msgstr ""
-
-#: src/main/options.c:120
-msgid "option structure argv allocation failed"
-msgstr ""
-
-#: src/main/options.c:165
-msgid "integer argument expected"
-msgstr ""
-
-#: src/main/options.c:176
-msgid "numeric argument expected"
-msgstr ""
-
-#: src/main/options.c:187
-msgid "process ID or pid:fd pair expected"
-msgstr ""
-
-#: src/main/options.c:194
-msgid "invalid process ID"
-msgstr ""
-
-#: src/main/options.c:366
-#, c-format
-msgid "Try `%s --help' for more information."
-msgstr ""
-
-#: src/main/options.c:370
-#, c-format
-msgid "Try `%s -h' for more information."
-msgstr ""
-
-#: src/main/options.c:386
-msgid ""
-"cannot use line mode or transfer modifier options when watching file "
-"descriptors"
-msgstr ""
-
-#: src/main/options.c:394
-msgid "cannot use cursor positioning when watching file descriptors"
-msgstr ""
-
-#: src/main/options.c:402
-msgid "cannot use remote control when watching file descriptors"
-msgstr ""
-
-#: src/main/options.c:410
-msgid "cannot transfer files when watching file descriptors"
-msgstr ""
-
-#: src/main/options.c:418
-msgid "not available on systems without /proc/self/fdinfo"
-msgstr ""

src/pv/cursor.c

@@ -10,9 +10,9 @@
  * terminal, so we try to use a lockfile if terminal locking doesn't work,
  * and finally abort if even that is unavailable.
  *
- * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023 Andrew Wood
+ * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2024 Andrew Wood
  *
- * Distributed under the Artistic License v2.0; see `doc/COPYING'.
+ * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */
 
 #include "config.h"
@@ -35,10 +35,12 @@
 #ifdef HAVE_SYS_PARAM_H
 #include <sys/param.h>
 #endif
+#endif				/* HAVE_IPC */
+
+/* for basename() */
 #ifdef HAVE_LIBGEN_H
 #include <libgen.h>
 #endif
-#endif				/* HAVE_IPC */
 
 
 /*
@@ -77,39 +79,39 @@ static void pv_crs_open_lockfile(pvstate_t state, int fd)
 	char *tmpdir;
 	int openflags;
 
-	state->crs_lock_fd = -1;
+	state->cursor.lock_fd = -1;
 
 	ttydev = ttyname(fd);
 	if (!ttydev) {
-		if (!state->force) {
-			pv_error(state, "%s: %s",
-				 _("failed to get terminal name"),
-				 strerror(errno));
+		if (!state->control.force) {
+			pv_error(state, "%s: %s", _("failed to get terminal name"), strerror(errno));
 		}
 		/*
 		 * If we don't know our terminal name, we can neither do IPC
 		 * nor make a lock file, so turn off cursor positioning.
 		 */
-		state->cursor = 0;
-		debug("%s",
-		      "ttyname failed - cursor positioning disabled");
+		state->control.cursor = 0;
+		debug("%s", "ttyname failed - cursor positioning disabled");
 		return;
 	}
 
-	tmpdir = (char *) getenv("TMPDIR");
-	if (!tmpdir)
-		tmpdir = (char *) getenv("TMP");
-	if (!tmpdir)
+	tmpdir = (char *) getenv("TMPDIR"); /* flawfinder: ignore */
+	if ((NULL == tmpdir) || ('\0' == tmpdir[0]))
+		tmpdir = (char *) getenv("TMP");	/* flawfinder: ignore */
+	if ((NULL == tmpdir) || ('\0' == tmpdir[0]))
 		tmpdir = "/tmp";
 
-	memset(state->crs_lock_file, 0, PV_SIZEOF_CRS_LOCK_FILE);
-	(void) pv_snprintf(state->crs_lock_file,
-			   PV_SIZEOF_CRS_LOCK_FILE,
-			   "%s/pv-%s-%i.lock", tmpdir, basename(ttydev),
-			   (int) geteuid());
+	/*
+	 * flawfinder rationale: null and zero-size values of $TMPDIR and
+	 * $TMP are rejected, and the destination buffer is bounded.
+	 */
+
+	memset(state->cursor.lock_file, 0, PV_SIZEOF_CRS_LOCK_FILE);
+	(void) pv_snprintf(state->cursor.lock_file,
+			   PV_SIZEOF_CRS_LOCK_FILE, "%s/pv-%s-%i.lock", tmpdir, basename(ttydev), (int) geteuid());
 
 	/*
-	 * Pawel Piatek - not everyone has O_NOFOLLOW, e.g. AIX doesn't
+	 * Pawel Piatek - not everyone has O_NOFOLLOW, e.g. AIX doesn't.
 	 */
 #ifdef O_NOFOLLOW
 	openflags = O_RDWR | O_CREAT | O_NOFOLLOW;
@@ -117,12 +119,18 @@ static void pv_crs_open_lockfile(pvstate_t state, int fd)
 	openflags = O_RDWR | O_CREAT;
 #endif
 
-	state->crs_lock_fd = open(state->crs_lock_file, openflags, 0600);
-	if (state->crs_lock_fd < 0) {
-		pv_error(state, "%s: %s: %s",
-			 state->crs_lock_file,
-			 _("failed to open lock file"), strerror(errno));
-		state->cursor = 0;
+	state->cursor.lock_fd = open(state->cursor.lock_file, openflags, 0600);	/* flawfinder: ignore */
+
+	/*
+	 * flawfinder rationale: we aren't truncating the lock file, we
+	 * don't change its contents, and we are attempting to use
+	 * O_NOFOLLOW where possible to avoid symlink attacks, so this
+	 * open() is as safe as we can make it.
+	 */
+
+	if (state->cursor.lock_fd < 0) {
+		pv_error(state, "%s: %s: %s", state->cursor.lock_file, _("failed to open lock file"), strerror(errno));
+		state->control.cursor = 0;
 		return;
 	}
 }
@@ -138,8 +146,8 @@ static void pv_crs_lock(pvstate_t state, int fd)
 	int lock_fd;
 
 	lock_fd = fd;
-	if (state->crs_lock_fd >= 0)
-		lock_fd = state->crs_lock_fd;
+	if (state->cursor.lock_fd >= 0)
+		lock_fd = state->cursor.lock_fd;
 
 	memset(&lock, 0, sizeof(lock));
 	lock.l_type = (short) F_WRLCK;
@@ -148,23 +156,20 @@ static void pv_crs_lock(pvstate_t state, int fd)
 	lock.l_len = 1;
 	while (fcntl(lock_fd, F_SETLKW, &lock) < 0) {
 		if (errno != EINTR) {
-			if (state->crs_lock_fd == -2) {
+			if (state->cursor.lock_fd == -2) {
 				pv_crs_open_lockfile(state, fd);
-				if (state->crs_lock_fd >= 0) {
-					lock_fd = state->crs_lock_fd;
+				if (state->cursor.lock_fd >= 0) {
+					lock_fd = state->cursor.lock_fd;
 				}
 			} else {
-				pv_error(state, "%s: %s",
-					 _("lock attempt failed"),
-					 strerror(errno));
+				pv_error(state, "%s: %s", _("lock attempt failed"), strerror(errno));
 				return;
 			}
 		}
 	}
 
-	if (state->crs_lock_fd >= 0) {
-		debug("%s: %s", state->crs_lock_file,
-		      "terminal lockfile acquired");
+	if (state->cursor.lock_fd >= 0) {
+		debug("%s: %s", state->cursor.lock_file, "terminal lockfile acquired");
 	} else {
 		debug("%s", "terminal lock acquired");
 	}
@@ -181,8 +186,8 @@ static void pv_crs_unlock(pvstate_t state, int fd)
 	int lock_fd;
 
 	lock_fd = fd;
-	if (state->crs_lock_fd >= 0)
-		lock_fd = state->crs_lock_fd;
+	if (state->cursor.lock_fd >= 0)
+		lock_fd = state->cursor.lock_fd;
 
 	memset(&lock, 0, sizeof(lock));
 	lock.l_type = (short) F_UNLCK;
@@ -191,9 +196,8 @@ static void pv_crs_unlock(pvstate_t state, int fd)
 	lock.l_len = 1;
 	(void) fcntl(lock_fd, F_SETLK, &lock);
 
-	if (state->crs_lock_fd >= 0) {
-		debug("%s: %s", state->crs_lock_file,
-		      "terminal lockfile released");
+	if (state->cursor.lock_fd >= 0) {
+		debug("%s: %s", state->cursor.lock_file, "terminal lockfile released");
 	} else {
 		debug("%s", "terminal lock released");
 	}
@@ -214,13 +218,13 @@ static void pv_crs_ipccount(pvstate_t state)
 	memset(&buf, 0, sizeof(buf));
 	buf.shm_nattch = 0;
 
-	(void) shmctl(state->crs_shmid, IPC_STAT, &buf);
-	state->crs_pvcount = (int) (buf.shm_nattch);
+	(void) shmctl(state->cursor.shmid, IPC_STAT, &buf);
+	state->cursor.pvcount = (int) (buf.shm_nattch);
 
-	if (state->crs_pvcount > state->crs_pvmax)
-		state->crs_pvmax = state->crs_pvcount;
+	if (state->cursor.pvcount > state->cursor.pvmax)
+		state->cursor.pvmax = state->cursor.pvcount;
 
-	debug("%s: %d", "pvcount", state->crs_pvcount);
+	debug("%s: %d", "pvcount", state->cursor.pvcount);
 }
 #endif				/* HAVE_IPC */
 
@@ -228,12 +232,17 @@ static void pv_crs_ipccount(pvstate_t state)
 /*
  * Get the current cursor Y co-ordinate by sending the ECMA-48 CPR code to
  * the terminal connected to the given file descriptor.
+ *
+ * This should only be called while the terminal is locked, to avoid
+ * confusing other "pv -c" instances about the current terminal attributes,
+ * since this function temporarily changes the terminal attributes and then
+ * puts them back.
  */
 static int pv_crs_get_ypos(int terminalfd)
 {
 	struct termios tty;
 	struct termios old_tty;
-	char cpr[32];
+	char cpr[32];			 /* flawfinder: ignore - bounded, zeroed */
 	int ypos;
 	ssize_t r;
 #ifdef CURSOR_ANSWERBACK_BYTE_BY_BYTE
@@ -258,7 +267,8 @@ static int pv_crs_get_ypos(int terminalfd)
 #ifdef CURSOR_ANSWERBACK_BYTE_BY_BYTE
 	/* Read answerback byte by byte - fails on AIX */
 	for (got = 0, r = 0; got < (int) (sizeof(cpr) - 2); got += r) {
-		r = read(terminalfd, cpr + got, 1);
+		r = read(terminalfd, cpr + got, 1);	/* flawfinder: ignore */
+		/* flawfinder rationale: bounded to buffer size by "for" */
 		if (r <= 0) {
 			debug("got=%d, r=%d: %s", got, r, strerror(errno));
 			break;
@@ -269,24 +279,23 @@ static int pv_crs_get_ypos(int terminalfd)
 
 	debug
 	    ("read answerback message from fd %d, length %d - buf = %02X %02X %02X %02X %02X %02X",
-	     terminalfd, got, cpr[0], cpr[1], cpr[2], cpr[3], cpr[4],
-	     cpr[5]);
+	     terminalfd, got, cpr[0], cpr[1], cpr[2], cpr[3], cpr[4], cpr[5]);
 
 #else				/* !CURSOR_ANSWERBACK_BYTE_BY_BYTE */
 	/* Read answerback in one big lump - may fail on Solaris */
-	r = read(terminalfd, cpr, sizeof(cpr));
+	r = read(terminalfd, cpr, sizeof(cpr) - 2);	/* flawfinder: ignore */
+	/* flawfinder rationale: bounded to buffer size */
 	if (r <= 0) {
 		debug("r=%d: %s", r, strerror(errno));
 	} else {
 		debug
 		    ("read answerback message from fd %d, length %d - buf = %02X %02X %02X %02X %02X %02X",
-		     terminalfd, r, cpr[0], cpr[1], cpr[2], cpr[3], cpr[4],
-		     cpr[5]);
+		     terminalfd, r, cpr[0], cpr[1], cpr[2], cpr[3], cpr[4], cpr[5]);
 
 	}
-#endif				/* CURSOR_ANSWERBACK_BYTE_BY_BYTE */
+#endif				/* !CURSOR_ANSWERBACK_BYTE_BY_BYTE */
 
-	ypos = (int) pv_getnum_ui(cpr + 2);
+	ypos = (int) pv_getnum_count(cpr + 2, false);
 
 	if (0 != tcsetattr(terminalfd, TCSANOW | TCSAFLUSH, &old_tty)) {
 		debug("%s: %s", "tcsetattr (2) failed", strerror(errno));
@@ -327,47 +336,51 @@ static int pv_crs_ipcinit(pvstate_t state, char *ttyfile, int terminalfd)
 	}
 
 	pv_crs_lock(state, terminalfd);
-	if (!state->cursor) {
+	if (!state->control.cursor) {
 		debug("%s", "early return - cursor has been disabled");
 		return 1;
 	}
 
-	state->crs_shmid = shmget(key, sizeof(int), 0600 | IPC_CREAT);
-	if (state->crs_shmid < 0) {
+	state->cursor.shmid = shmget(key, sizeof(struct pvcursorstate_s), 0600 | IPC_CREAT);
+	if (state->cursor.shmid < 0) {
 		debug("%s: %s", "shmget failed", strerror(errno));
 		pv_crs_unlock(state, terminalfd);
 		return 1;
 	}
 
-	state->crs_y_top = shmat(state->crs_shmid, NULL, 0);
+	/*@-nullpass@ */
+	/* splint doesn't know shmaddr can be NULL */
+	state->cursor.shared = shmat(state->cursor.shmid, NULL, 0);
+	/*@+nullpass@ */
 
 	pv_crs_ipccount(state);
 
 	/*
 	 * If nobody else is attached to the shared memory segment, we're
 	 * the first, so we need to initialise the shared memory with our
-	 * current Y cursor co-ordinate.
+	 * current Y cursor co-ordinate and with an initial false value for
+	 * the TOSTOP-added flag.
 	 */
-	if (state->crs_pvcount < 2) {
-		state->crs_y_start = pv_crs_get_ypos(terminalfd);
-		*(state->crs_y_top) = state->crs_y_start;
-		state->crs_y_lastread = state->crs_y_start;
+	if (state->cursor.pvcount < 2) {
+		state->cursor.y_start = pv_crs_get_ypos(terminalfd);
+		state->cursor.shared->y_topmost = state->cursor.y_start;
+		state->cursor.shared->tty_tostop_added = false;
+		state->cursor.y_lastread = state->cursor.y_start;
 		debug("%s", "we are the first to attach");
 	}
 
-	state->crs_y_offset = state->crs_pvcount - 1;
-	if (state->crs_y_offset < 0)
-		state->crs_y_offset = 0;
+	state->cursor.y_offset = state->cursor.pvcount - 1;
+	if (state->cursor.y_offset < 0)
+		state->cursor.y_offset = 0;
 
 	/*
 	 * If anyone else had attached to the shared memory segment, we need
 	 * to read the top Y co-ordinate from it.
 	 */
-	if (state->crs_pvcount > 1) {
-		state->crs_y_start = *(state->crs_y_top);
-		state->crs_y_lastread = state->crs_y_start;
-		debug("%s: %d", "not the first to attach - got top y",
-		      state->crs_y_start);
+	if (state->cursor.pvcount > 1) {
+		state->cursor.y_start = state->cursor.shared->y_topmost;
+		state->cursor.y_lastread = state->cursor.y_start;
+		debug("%s: %d", "not the first to attach - got top y", state->cursor.y_start);
 	}
 
 	pv_crs_unlock(state, terminalfd);
@@ -383,37 +396,50 @@ static int pv_crs_ipcinit(pvstate_t state, char *ttyfile, int terminalfd)
 void pv_crs_init(pvstate_t state)
 {
 	char *ttyfile;
-	int fd;
+	int terminalfd;
 
-	state->crs_lock_fd = -2;
-	state->crs_lock_file[0] = '\0';
+	state->cursor.lock_fd = -2;
+	state->cursor.lock_file[0] = '\0';
 
-	if (!state->cursor)
+	if (!state->control.cursor)
 		return;
 
 	debug("%s", "init");
 
 	ttyfile = ttyname(STDERR_FILENO);
-	if (!ttyfile) {
-		debug("%s: %s",
-		      "disabling cursor positioning because ttyname failed",
-		      strerror(errno));
-		state->cursor = 0;
+	if (NULL == ttyfile) {
+		debug("%s: %s", "disabling cursor positioning because ttyname failed", strerror(errno));
+		state->control.cursor = false;
 		return;
 	}
 
-	fd = open(ttyfile, O_RDWR);
-	if (fd < 0) {
-		pv_error(state, "%s: %s: %s",
-			 _("failed to open terminal"), ttyfile,
-			 strerror(errno));
-		state->cursor = false;
+	terminalfd = open(ttyfile, O_RDWR); /* flawfinder: ignore */
+
+	/*
+	 * flawfinder rationale: the file we open won't be truncated but
+	 * could be corrupted by writes attempting to get the current Y
+	 * position; but we get the filename from ttyname() and it could be
+	 * a symbolic link, so we can't do much more than trust it.
+	 */
+
+	if (terminalfd < 0) {
+		pv_error(state, "%s: %s: %s", _("failed to open terminal"), ttyfile, strerror(errno));
+		state->control.cursor = false;
 		return;
 	}
 #ifdef HAVE_IPC
-	if (pv_crs_ipcinit(state, ttyfile, fd) != 0) {
+	if (pv_crs_ipcinit(state, ttyfile, terminalfd) != 0) {
 		debug("%s", "ipcinit failed, setting noipc flag");
-		state->crs_noipc = true;
+		state->cursor.noipc = true;
+	}
+
+	/*
+	 * If we have already set the terminal TOSTOP attribute, set the
+	 * flag in shared memory to let the other instances know.
+	 */
+	if ((!state->cursor.noipc) && state->signal.pv_tty_tostop_added && (NULL != state->cursor.shared)) {
+		debug("%s", "propagating local pv_tty_tostop_added true value to shared flag");
+		state->cursor.shared->tty_tostop_added = true;
 	}
 
 	/*
@@ -421,29 +447,29 @@ void pv_crs_init(pvstate_t state)
 	 * co-ordinate. If we are using IPC, then the pv_crs_ipcinit()
 	 * function takes care of this in a more multi-process-friendly way.
 	 */
-	if (state->crs_noipc) {
+	if (state->cursor.noipc) {
 #else				/* ! HAVE_IPC */
 	if (1) {
 #endif				/* HAVE_IPC */
 		/*
 		 * Get current cursor position + 1.
 		 */
-		pv_crs_lock(state, fd);
-		state->crs_y_start = pv_crs_get_ypos(fd);
+		pv_crs_lock(state, terminalfd);
+		state->cursor.y_start = pv_crs_get_ypos(terminalfd);
 		/*
 		 * Move down a line while the terminal is locked, so that
 		 * other processes in the pipeline will get a different
 		 * initial ypos.
 		 */
-		if (state->crs_y_start > 0)
+		if (state->cursor.y_start > 0)
 			pv_write_retry(STDERR_FILENO, "\n", 1);
-		pv_crs_unlock(state, fd);
+		pv_crs_unlock(state, terminalfd);
 
-		if (state->crs_y_start < 1)
-			state->cursor = 0;
+		if (state->cursor.y_start < 1)
+			state->control.cursor = 0;
 	}
 
-	(void) close(fd);
+	(void) close(terminalfd);
 }
 
 
@@ -453,9 +479,9 @@ void pv_crs_init(pvstate_t state)
  */
 void pv_crs_needreinit(pvstate_t state)
 {
-	state->crs_needreinit += 2;
-	if (state->crs_needreinit > 3)
-		state->crs_needreinit = 3;
+	state->cursor.needreinit += 2;
+	if (state->cursor.needreinit > 3)
+		state->cursor.needreinit = 3;
 }
 #endif
 
@@ -465,28 +491,29 @@ void pv_crs_needreinit(pvstate_t state)
  * Reinitialise the cursor positioning code (called if we are backgrounded
  * then foregrounded again).
  */
-void pv_crs_reinit(pvstate_t state)
+static void pv_crs_reinit(pvstate_t state)
 {
 	debug("%s", "reinit");
 
 	pv_crs_lock(state, STDERR_FILENO);
 
-	state->crs_needreinit--;
-	if (state->crs_y_offset < 1)
-		state->crs_needreinit = 0;
+	state->cursor.needreinit--;
+	if (state->cursor.y_offset < 1)
+		state->cursor.needreinit = 0;
 
-	if (state->crs_needreinit > 0) {
+	if (state->cursor.needreinit > 0) {
 		pv_crs_unlock(state, STDERR_FILENO);
 		return;
 	}
 
 	debug("%s", "reinit full");
 
-	state->crs_y_start = pv_crs_get_ypos(STDERR_FILENO);
+	state->cursor.y_start = pv_crs_get_ypos(STDERR_FILENO);
 
-	if (state->crs_y_offset < 1)
-		*(state->crs_y_top) = state->crs_y_start;
-	state->crs_y_lastread = state->crs_y_start;
+	if ((state->cursor.y_offset < 1) && (NULL != state->cursor.shared)) {
+		state->cursor.shared->y_topmost = state->cursor.y_start;
+	}
+	state->cursor.y_lastread = state->cursor.y_start;
 
 	pv_crs_unlock(state, STDERR_FILENO);
 }
@@ -494,31 +521,44 @@ void pv_crs_reinit(pvstate_t state)
 
 
 /*
- * Output a single-line update, moving the cursor to the correct position to
- * do so.
+ * Output a single-line update (\0-terminated), using the ECMA-48 CSI "CUP"
+ * sequence to move the cursor to the correct position to do so.
  */
-void pv_crs_update(pvstate_t state, const char *str)
+void pv_crs_update(pvstate_t state, const char *output_line)
 {
-	char pos[32];
+	char cup_cmd[32];		 /* flawfinder: ignore */
+	size_t cup_cmd_length, output_line_length;
 	int y;
 
+	/*
+	 * flawfinder rationale: the "cup_cmd" buffer is always zeroed
+	 * before each use, and is only written to by pv_snprintf() bounded
+	 * by its size; also, that function explictly zero-terminates the
+	 * string it writes.  The write() call is also bounded.
+	 */
+
+	output_line_length = strlen(output_line);	/* flawfinder: ignore */
+	/* flawfinder - output_line is explictly expected to be \0-terminated. */
+
 #ifdef HAVE_IPC
-	if (!state->crs_noipc) {
-		if (state->crs_needreinit > 0)
+	if (!state->cursor.noipc) {
+		if (state->cursor.needreinit > 0)
 			pv_crs_reinit(state);
 
 		pv_crs_ipccount(state);
-		if (state->crs_y_lastread != *(state->crs_y_top)) {
-			state->crs_y_start = *(state->crs_y_top);
-			state->crs_y_lastread = state->crs_y_start;
+		if (NULL != state->cursor.shared) {
+			if (state->cursor.y_lastread != state->cursor.shared->y_topmost) {
+				state->cursor.y_start = state->cursor.shared->y_topmost;
+				state->cursor.y_lastread = state->cursor.y_start;
+			}
 		}
 
-		if (state->crs_needreinit > 0)
+		if (state->cursor.needreinit > 0)
 			return;
 	}
 #endif				/* HAVE_IPC */
 
-	y = state->crs_y_start;
+	y = state->cursor.y_start;
 
 #ifdef HAVE_IPC
 	/*
@@ -527,32 +567,29 @@ void pv_crs_update(pvstate_t state, const char *str)
 	 * scroll the screen (only if we're the first `pv'), and then move
 	 * our initial Y co-ordinate up.
 	 */
-	if (((state->crs_y_start + state->crs_pvmax) >
-	     (int) (state->height))
-	    && (!state->crs_noipc)
+	if (((state->cursor.y_start + state->cursor.pvmax) > (int) (state->control.height))
+	    && (!state->cursor.noipc)
 	    ) {
 		int offs;
 
-		offs =
-		    ((state->crs_y_start + state->crs_pvmax) -
-		     state->height);
+		offs = ((state->cursor.y_start + state->cursor.pvmax) - state->control.height);
 
-		state->crs_y_start -= offs;
-		if (state->crs_y_start < 1)
-			state->crs_y_start = 1;
+		state->cursor.y_start -= offs;
+		if (state->cursor.y_start < 1)
+			state->cursor.y_start = 1;
 
 		debug("%s: %d", "scroll offset", offs);
 
 		/*
 		 * Scroll the screen if we're the first `pv'.
 		 */
-		if (0 == state->crs_y_offset) {
+		if (0 == state->cursor.y_offset) {
 			pv_crs_lock(state, STDERR_FILENO);
 
-			memset(pos, 0, sizeof(pos));
-			(void) pv_snprintf(pos, sizeof(pos), "\033[%u;1H",
-					   state->height);
-			pv_write_retry(STDERR_FILENO, pos, strlen(pos));
+			memset(cup_cmd, 0, sizeof(cup_cmd));
+			(void) pv_snprintf(cup_cmd, sizeof(cup_cmd), "\033[%u;1H", state->control.height);
+			cup_cmd_length = strlen(cup_cmd);	/* flawfinder: ignore */
+			pv_write_retry(STDERR_FILENO, cup_cmd, cup_cmd_length);
 			for (; offs > 0; offs--) {
 				pv_write_retry(STDERR_FILENO, "\n", 1);
 			}
@@ -563,24 +600,32 @@ void pv_crs_update(pvstate_t state, const char *str)
 		}
 	}
 
-	if (!state->crs_noipc)
-		y = state->crs_y_start + state->crs_y_offset;
+	if (!state->cursor.noipc)
+		y = state->cursor.y_start + state->cursor.y_offset;
 #endif				/* HAVE_IPC */
 
 	/*
 	 * Keep the Y co-ordinate within sensible bounds, so we can never
-	 * overflow the "pos" buffer.
+	 * overflow the "cup_cmd" buffer.
 	 */
 	if ((y < 1) || (y > 999999))
 		y = 1;
 
-	memset(pos, 0, sizeof(pos));
-	(void) pv_snprintf(pos, sizeof(pos), "\033[%d;1H", y);
+	memset(cup_cmd, 0, sizeof(cup_cmd));
+	(void) pv_snprintf(cup_cmd, sizeof(cup_cmd), "\033[%d;1H", y);
+	cup_cmd_length = strlen(cup_cmd);   /* flawfinder: ignore */
+
+	/*
+	 * flawfinder rationale: "cup_cmd" is only written to by
+	 * pv_snprintf(), which explicitly ensures that the string will be
+	 * \0-terminated, and the buffer is zeroed beforehand so if
+	 * pv_snprintf() fails to run the string will be of zero length.
+	 */
 
 	pv_crs_lock(state, STDERR_FILENO);
 
-	pv_write_retry(STDERR_FILENO, pos, strlen(pos));
-	pv_write_retry(STDERR_FILENO, str, strlen(str));
+	pv_write_retry(STDERR_FILENO, cup_cmd, cup_cmd_length);
+	pv_write_retry(STDERR_FILENO, output_line, output_line_length);
 
 	pv_crs_unlock(state, STDERR_FILENO);
 }
@@ -591,20 +636,22 @@ void pv_crs_update(pvstate_t state, const char *str)
  */
 void pv_crs_fini(pvstate_t state)
 {
-	char pos[32];
+	char cup_cmd[32];		 /* flawfinder: ignore */
 	unsigned int y;
 
+	/* flawfinder - "cup_cmd" is zeroed, and only written by pv_snprintf() */
+
 	debug("%s", "fini");
 
-	y = (unsigned int) (state->crs_y_start);
+	y = (unsigned int) (state->cursor.y_start);
 
 #ifdef HAVE_IPC
-	if ((state->crs_pvmax > 0) && (!state->crs_noipc))
-		y += state->crs_pvmax - 1;
+	if ((state->cursor.pvmax > 0) && (!state->cursor.noipc))
+		y += state->cursor.pvmax - 1;
 #endif				/* HAVE_IPC */
 
-	if (y > state->height)
-		y = state->height;
+	if (y > state->control.height)
+		y = state->control.height;
 
 	/*
 	 * Absolute bounds check.
@@ -612,35 +659,54 @@ void pv_crs_fini(pvstate_t state)
 	if ((y < 1) || (y > 999999))
 		y = 1;
 
-	memset(pos, 0, sizeof(pos));
-	(void) pv_snprintf(pos, sizeof(pos), "\033[%u;1H\n", y);
+	memset(cup_cmd, 0, sizeof(cup_cmd));
+	(void) pv_snprintf(cup_cmd, sizeof(cup_cmd), "\033[%u;1H\n", y);
 
 	pv_crs_lock(state, STDERR_FILENO);
 
-	pv_write_retry(STDERR_FILENO, pos, strlen(pos));
+	pv_write_retry(STDERR_FILENO, cup_cmd, strlen(cup_cmd));	/* flawfinder: ignore */
+	/* flawfinder - pv_snprintf() always \0-terminates (see above). */
 
 #ifdef HAVE_IPC
+	/*
+	 * If any other "pv -c" instances have set the terminal TOSTOP
+	 * attribute, set our local flag so pv_sig_fini() will know about
+	 * it.
+	 */
+	if ((!state->cursor.noipc) && (NULL != state->cursor.shared) && state->cursor.shared->tty_tostop_added) {
+		if (!state->signal.pv_tty_tostop_added) {
+			debug("%s", "propagating shared tty_tostop_added true value to local flag");
+			state->signal.pv_tty_tostop_added = true;
+		}
+	}
+
 	pv_crs_ipccount(state);
-	(void) shmdt((void *) state->crs_y_top);
+	if (NULL != state->cursor.shared) {
+		(void) shmdt(state->cursor.shared);
+	}
+	state->cursor.shared = NULL;
 
 	/*
 	 * If we are the last instance detaching from the shared memory,
 	 * delete it so it's not left lying around.
 	 */
-	if (state->crs_pvcount < 2)
-		(void) shmctl(state->crs_shmid, IPC_RMID, NULL);
+	if (state->cursor.pvcount < 2) {
+		struct shmid_ds shm_buf;
+		memset(&shm_buf, 0, sizeof(shm_buf));
+		(void) shmctl(state->cursor.shmid, IPC_RMID, &shm_buf);
+	}
 
 #endif				/* HAVE_IPC */
 
 	pv_crs_unlock(state, STDERR_FILENO);
 
-	if (state->crs_lock_fd >= 0) {
-		(void) close(state->crs_lock_fd);
+	if (state->cursor.lock_fd >= 0) {
+		(void) close(state->cursor.lock_fd);
 		/*
 		 * We can get away with removing this on exit because all
 		 * the other PVs will be finishing at the same sort of time.
 		 */
-		(void) remove(state->crs_lock_file);
+		(void) remove(state->cursor.lock_file);
 	}
 }
 

src/pv/elapsedtime.c

@@ -0,0 +1,255 @@
+/*
+ * Functions relating to elapsed time.
+ *
+ * Copyright 2023-2024 Andrew Wood
+ *
+ * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
+ */
+
+#include "config.h"
+#include "pv.h"
+#include "pv-internal.h"
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+
+
+/*
+ * Read the current elapsed time, relative to an unspecified point in the
+ * past, and store it in the given timespec buffer.  The time is guaranteed
+ * to not go backwards and does not count time when the system was
+ * suspended.  See clock_gettime(2) with CLOCK_MONOTONIC.
+ *
+ * The read should not fail; if it does, the program is aborted with exit
+ * status 16.
+ */
+void pv_elapsedtime_read(struct timespec *return_time)
+{
+	/*@-unrecog@ *//* splint doesn't know clock_gettime */
+	if (0 != clock_gettime(CLOCK_MONOTONIC, return_time)) {
+		fprintf(stderr, "%s: %s: %s\n", PACKAGE_NAME, "clock_gettime", strerror(errno));
+		/*@-exitarg@ *//* we explicitly want a special exit status */
+		exit(16);
+		/*@+exitarg@ */
+	}
+	/*@+unrecog@ */
+}
+
+
+/*
+ * Set the time in the given timespec to zero.
+ */
+void pv_elapsedtime_zero(struct timespec *zero_time)
+{
+	if (NULL == zero_time)
+		return;
+	zero_time->tv_sec = 0;
+	zero_time->tv_nsec = 0;
+}
+
+
+/*
+ * Copy source_time into dest_time.  Analogous to strcpy(3).
+ */
+void pv_elapsedtime_copy(struct timespec *dest_time, const struct timespec *source_time)
+{
+	if (NULL == dest_time)
+		return;
+	if (NULL == source_time)
+		return;
+	dest_time->tv_sec = source_time->tv_sec;
+	dest_time->tv_nsec = source_time->tv_nsec;
+}
+
+
+/*
+ * Return -1, 0, or 1 depending on whether the first time is earlier than,
+ * equal to, or later than the second time.  Analogous to strcmp(3).
+ */
+int pv_elapsedtime_compare(const struct timespec *first_time, const struct timespec *second_time)
+{
+	/* Treat NULL as a zero time. */
+	if ((NULL == first_time) && (NULL == second_time))
+		return 0;
+	if ((NULL == first_time) && (NULL != second_time))
+		return -1;
+	if ((NULL != first_time) && (NULL == second_time))
+		return 1;
+
+	/* These should never happen, but check just in case. */
+	if (NULL == first_time)
+		return 0;
+	if (NULL == second_time)
+		return 0;
+
+	/* Check the seconds part, first */
+	if (first_time->tv_sec < second_time->tv_sec)
+		return -1;
+	if (first_time->tv_sec > second_time->tv_sec)
+		return 1;
+
+	/* Seconds are equal - compare nanoseconds. */
+	if (first_time->tv_nsec < second_time->tv_nsec)
+		return -1;
+	if (first_time->tv_nsec > second_time->tv_nsec)
+		return 1;
+
+	/* Nanoseconds are also equal - times are equal. */
+	return 0;
+}
+
+
+/*
+ * Add first_time and second_time, writing the result to return_time.
+ */
+void pv_elapsedtime_add(struct timespec *return_time, const struct timespec *first_time,
+			const struct timespec *second_time)
+{
+	long long seconds, nanoseconds;
+
+	if (NULL == return_time)
+		return;
+
+	seconds = 0;
+	nanoseconds = 0;
+
+	if (NULL != first_time) {
+		seconds += first_time->tv_sec;
+		nanoseconds += first_time->tv_nsec;
+	}
+
+	if (NULL != second_time) {
+		seconds += second_time->tv_sec;
+		nanoseconds += second_time->tv_nsec;
+	}
+
+	seconds += nanoseconds / 1000000000;
+	nanoseconds = nanoseconds % 1000000000;
+
+	/*@-type@ */
+	return_time->tv_sec = seconds;
+	return_time->tv_nsec = nanoseconds;
+	/*@+type@ */
+
+	/*
+	 * splint rationale: we know the types are different but should be
+	 * large enough and are relying on the compiler to do the casting
+	 * correctly, since the manual for timespec(3) states the types are
+	 * implementation-defined.
+	 *
+	 * TODO: review this to make sure that this isn't just an elaborate
+	 * excuse for "it's hard to fix and I don't know how".
+	 */
+}
+
+
+/*
+ * Add a number of nanoseconds to the given timespec.
+ */
+void pv_elapsedtime_add_nsec(struct timespec *return_time, long long add_nanoseconds)
+{
+	long long seconds, nanoseconds;
+
+	if (NULL == return_time)
+		return;
+
+	seconds = return_time->tv_sec;
+	nanoseconds = return_time->tv_nsec + add_nanoseconds;
+
+	seconds += nanoseconds / 1000000000;
+	nanoseconds = nanoseconds % 1000000000;
+
+	/*@-type@ *//* see above */
+	return_time->tv_sec = seconds;
+	return_time->tv_nsec = nanoseconds;
+	/*@+type@ */
+}
+
+
+/*
+ * Set the return timespec to the first time minus the second time.
+ */
+void pv_elapsedtime_subtract(struct timespec *return_time, const struct timespec *first_time,
+			     const struct timespec *second_time)
+{
+	long long seconds, nanoseconds;
+
+	if (NULL == return_time)
+		return;
+
+	seconds = 0;
+	nanoseconds = 0;
+
+	if (NULL != first_time) {
+		seconds += first_time->tv_sec;
+		nanoseconds += first_time->tv_nsec;
+	}
+
+	if (NULL != second_time) {
+		seconds -= second_time->tv_sec;
+		nanoseconds -= second_time->tv_nsec;
+	}
+
+	seconds += nanoseconds / 1000000000;
+	nanoseconds = nanoseconds % 1000000000;
+
+	if (nanoseconds < 0) {
+		seconds--;
+		nanoseconds = 1000000000 + nanoseconds;
+	}
+
+	/*@-type@ *//* see above */
+	return_time->tv_sec = seconds;
+	return_time->tv_nsec = nanoseconds;
+	/*@+type@ */
+}
+
+
+/*
+ * Convert a timespec to seconds.
+ */
+long double pv_elapsedtime_seconds(const struct timespec *elapsed_time)
+{
+	long double seconds;
+
+	if (NULL == elapsed_time)
+		return 0.0;
+
+	seconds = (long double) elapsed_time->tv_sec;
+	seconds += (long double) (elapsed_time->tv_nsec) / 1000000000.0L;
+
+	return seconds;
+}
+
+
+/*
+ * Sleep for a number of nanoseconds.
+ */
+void pv_nanosleep(long long nanoseconds)
+{
+#if HAVE_NANOSLEEP
+	struct timespec sleep_for, time_remaining;
+
+	memset(&sleep_for, 0, sizeof(sleep_for));
+	memset(&time_remaining, 0, sizeof(time_remaining));
+
+	sleep_for.tv_sec = 0;
+	/*@-type@ */
+	sleep_for.tv_nsec = nanoseconds;
+	/*@+type@ *//* splint rationale - best effort */
+	/*@-unrecog@ */
+	(void) nanosleep(&sleep_for, &time_remaining);
+	/*@+unrecog@ *//* splint rationale - doesn't know of nanosleep() */
+#else
+	struct timeval tv;
+	tv.tv_sec = 0;
+	/*@-type@ */
+	tv.tv_usec = nanoseconds / 1000;
+	/*@+type@ *//* splint rationale - best effort */
+	/*@-null@ */
+	(void) select(0, NULL, NULL, NULL, &tv);
+	/*@+null@ *//* splint doesn't know about select() */
+#endif
+}
+
+/* EOF */

src/pv/file.c

@@ -1,9 +1,9 @@
 /*
- * Functions for opening and closing files.
+ * Functions for opening and closing files, and calculating their size.
  *
- * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023 Andrew Wood
+ * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2024 Andrew Wood
  *
- * Distributed under the Artistic License v2.0; see `doc/COPYING'.
+ * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */
 
 #include "config.h"
@@ -20,83 +20,100 @@
 #include <limits.h>
 
 
+/*@-type@*/
+/* splint has trouble with off_t and mode_t throughout this file. */
+
 /*
- * Try to work out the total size of all data by adding up the sizes of all
- * input files. If any of the input files are of indeterminate size (i.e.
- * they are a pipe), the total size is set to zero.
+ * Calculate the total number of bytes to be transferred by adding up the
+ * sizes of all input files.  If any of the input files are of indeterminate
+ * size (such as if they are a pipe), the total size is set to zero.
  *
  * Any files that cannot be stat()ed or that access() says we can't read
- * will cause a warning to be output and will be removed from the list.
- *
- * In line mode, any files that pass the above checks will then be read to
- * determine how many lines they contain, and the total size will be set to
- * the total line count. Only regular files will be read.
+ * will be skipped, and the total size will be set to zero.
  *
  * Returns the total size, or 0 if it is unknown.
  */
-unsigned long long pv_calc_total_size(pvstate_t state)
+static off_t pv_calc_total_bytes(pvstate_t state)
 {
-	unsigned long long total;
+	off_t total;
 	struct stat sb;
-	int rc, i, j, fd;
+	unsigned int file_idx;
 
 	total = 0;
-	rc = 0;
 	memset(&sb, 0, sizeof(sb));
 
 	/*
 	 * No files specified - check stdin.
 	 */
-	if (state->input_file_count < 1) {
+	if ((state->files.file_count < 1) || (NULL == state->files.filename)) {
 		if (0 == fstat(STDIN_FILENO, &sb))
 			total = sb.st_size;
 		return total;
 	}
 
-	for (i = 0; i < state->input_file_count; i++) {
-		if (0 == strcmp(state->input_files[i], "-")) {
+	for (file_idx = 0; file_idx < state->files.file_count; file_idx++) {
+		int rc;
+
+		if (0 == strcmp(state->files.filename[file_idx], "-")) {
 			rc = fstat(STDIN_FILENO, &sb);
 			if (rc != 0) {
 				total = 0;
 				return total;
 			}
 		} else {
-			rc = stat(state->input_files[i], &sb);
-			if (0 == rc)
-				rc = access(state->input_files[i], R_OK);
+			rc = stat(state->files.filename[file_idx], &sb);
+			if (0 == rc) {
+				rc = access(state->files.filename[file_idx], R_OK);	/* flawfinder: ignore */
+				/*
+				 * flawfinder rationale: we're not really
+				 * using access() to do permissions checks,
+				 * but to zero the total if we might be
+				 * unable to read the file later, so if an
+				 * attacker redirected one of the input
+				 * files in between this part and the actual
+				 * reading, the outcome would be that the
+				 * total byte count would be wrong or
+				 * missing, nothing useful.
+				 */
+			}
 		}
 
 		if (rc != 0) {
-			pv_error(state, "%s: %s",
-				 state->input_files[i], strerror(errno));
-			for (j = i; j < state->input_file_count - 1; j++) {
-				state->input_files[j] =
-				    state->input_files[j + 1];
-			}
-			state->input_file_count--;
-			i--;
-			state->exit_status |= 2;
-			continue;
+			debug("%s: %s", state->files.filename[file_idx], strerror(errno));
+			total = 0;
+			return total;
 		}
 
 		if (S_ISBLK(sb.st_mode)) {
+			int fd;
+
 			/*
 			 * Get the size of block devices by opening
 			 * them and seeking to the end.
 			 */
-			if (0 == strcmp(state->input_files[i], "-")) {
-				fd = open("/dev/stdin", O_RDONLY);
+			if (0 == strcmp(state->files.filename[file_idx], "-")) {
+				fd = open("/dev/stdin", O_RDONLY);	/* flawfinder: ignore */
+				/*
+				 * flawfinder rationale: "/dev/stdin" may be
+				 * a symlink, so can't use O_NOFOLLOW, and
+				 * so we have to assume that it being under
+				 * "/dev" means the path is less likely to
+				 * be under the control of someone else.
+				 */
 			} else {
-				fd = open(state->input_files[i], O_RDONLY);
+				fd = open(state->files.filename[file_idx], O_RDONLY);	/* flawfinder: ignore */
+				/* flawfinder - see last open() below. */
 			}
 			if (fd >= 0) {
-				total += lseek(fd, 0, SEEK_END);
-				close(fd);
+				off_t end_position;
+				end_position = lseek(fd, 0, SEEK_END);
+				if (end_position > 0) {
+					total += end_position;
+				}
+				(void) close(fd);
 			} else {
-				pv_error(state, "%s: %s",
-					 state->input_files[i],
-					 strerror(errno));
-				state->exit_status |= 2;
+				total = 0;
+				return total;
 			}
 		} else if (S_ISREG(sb.st_mode)) {
 			total += sb.st_size;
@@ -113,17 +130,23 @@ unsigned long long pv_calc_total_size(pvstate_t state)
 	 * Further modified to check that stdout is not in append-only mode
 	 * and that we can seek back to the start after getting the size.
 	 */
-	if (total <= 0) {
+	if (total < 1) {
+		int rc;
+
 		rc = fstat(STDOUT_FILENO, &sb);
+
 		if ((0 == rc) && S_ISBLK(sb.st_mode)
 		    && (0 == (fcntl(STDOUT_FILENO, F_GETFL) & O_APPEND))) {
-			total = lseek(STDOUT_FILENO, 0, SEEK_END);
+			off_t end_position;
+			end_position = lseek(STDOUT_FILENO, 0, SEEK_END);
+			total = 0;
+			if (end_position > 0) {
+				total = end_position;
+			}
 			if (lseek(STDOUT_FILENO, 0, SEEK_SET) != 0) {
 				pv_error(state, "%s: %s: %s", "(stdout)",
-					 _
-					 ("failed to seek to start of output"),
-					 strerror(errno));
-				state->exit_status |= 2;
+					 _("failed to seek to start of output"), strerror(errno));
+				state->status.exit_status |= 2;
 			}
 			/*
 			 * If we worked out a size, then set the
@@ -132,23 +155,38 @@ unsigned long long pv_calc_total_size(pvstate_t state)
 			 * device.
 			 */
 			if (total > 0) {
-				state->stop_at_size = 1;
+				state->control.stop_at_size = true;
 			}
 		}
 	}
 
-	if (!state->linemode)
-		return total;
+	return total;
+}
+
+
+/*
+ * Count the total number of lines to be transferred by reading through all
+ * input files.  If any of the inputs are not regular files (such as if they
+ * are a pipe or a block device), the total size is set to zero.
+ *
+ * Any files that cannot be stat()ed or that access() says we can't read
+ * will be skipped, and the total size will be set to zero.
+ *
+ * Returns the total size, or 0 if it is unknown.
+ */
+static off_t pv_calc_total_lines(pvstate_t state)
+{
+	off_t total;
+	struct stat sb;
+	unsigned int file_idx;
 
-	/*
-	 * In line mode, we count input lines to work out the total size.
-	 */
 	total = 0;
 
-	for (i = 0; i < state->input_file_count; i++) {
-		fd = -1;
+	for (file_idx = 0; file_idx < state->files.file_count && NULL != state->files.filename; file_idx++) {
+		int fd = -1;
+		int rc = 0;
 
-		if (0 == strcmp(state->input_files[i], "-")) {
+		if (0 == strcmp(state->files.filename[file_idx], "-")) {
 			rc = fstat(STDIN_FILENO, &sb);
 			if ((rc != 0) || (!S_ISREG(sb.st_mode))) {
 				total = 0;
@@ -156,112 +194,143 @@ unsigned long long pv_calc_total_size(pvstate_t state)
 			}
 			fd = dup(STDIN_FILENO);
 		} else {
-			rc = stat(state->input_files[i], &sb);
+			rc = stat(state->files.filename[file_idx], &sb);
 			if ((rc != 0) || (!S_ISREG(sb.st_mode))) {
 				total = 0;
 				return total;
 			}
-			fd = open(state->input_files[i], O_RDONLY);
+			fd = open(state->files.filename[file_idx], O_RDONLY);	/* flawfinder: ignore */
+			/* flawfinder - see last open() below. */
 		}
 
 		if (fd < 0) {
-			pv_error(state, "%s: %s", state->input_files[i],
-				 strerror(errno));
+			debug("%s: %s", state->files.filename[file_idx], strerror(errno));
 			total = 0;
-			state->exit_status |= 2;
 			return total;
 		}
+#if HAVE_POSIX_FADVISE
+		/* Advise the OS that we will only be reading sequentially. */
+		(void) posix_fadvise(fd, 0, 0, POSIX_FADV_SEQUENTIAL);
+#endif
 
-		while (1) {
-			unsigned char scanbuf[1024];
-			int numread, j;
+		while (true) {
+			char scanbuf[1024];	/* flawfinder: ignore */
+			ssize_t numread, buf_idx;
 
-			numread = read(fd, scanbuf, sizeof(scanbuf));
+			/* flawfinder - always bounded, below. */
+
+			numread = read(fd, scanbuf, sizeof(scanbuf));	/* flawfinder: ignore */
+			/*
+			 * flawfinder rationale: each time around the loop
+			 * we are always reading into the start of the
+			 * buffer, not moving along it, so the bounding is
+			 * OK.
+			 */
 			if (numread < 0) {
-				pv_error(state, "%s: %s",
-					 state->input_files[i],
-					 strerror(errno));
-				state->exit_status |= 2;
+				pv_error(state, "%s: %s", state->files.filename[file_idx], strerror(errno));
+				state->status.exit_status |= 2;
 				break;
 			} else if (0 == numread) {
 				break;
 			}
-			for (j = 0; j < numread; j++) {
-				if ('\n' == scanbuf[j])
-					total++;
+			for (buf_idx = 0; buf_idx < numread; buf_idx++) {
+				if (state->control.null_terminated_lines) {
+					if ('\0' == scanbuf[buf_idx])
+						total++;
+				} else {
+					if ('\n' == scanbuf[buf_idx])
+						total++;
+				}
 			}
 		}
 
-		lseek(fd, 0, SEEK_SET);
-		close(fd);
+		if (0 != lseek(fd, 0, SEEK_SET)) {
+			pv_error(state, "%s: %s", state->files.filename[file_idx], strerror(errno));
+			state->status.exit_status |= 2;
+		}
+
+		(void) close(fd);
 	}
 
 	return total;
 }
 
 
+/*
+ * Work out the total size of all data by adding up the sizes of all input
+ * files, using either pv_calc_total_bytes() or pv_calc_total_lines()
+ * depending on whether state->control.linemode is true.
+ *
+ * Returns the total size, or 0 if it is unknown.
+ */
+off_t pv_calc_total_size(pvstate_t state)
+{
+	if (state->control.linemode) {
+		return pv_calc_total_lines(state);
+	} else {
+		return pv_calc_total_bytes(state);
+	}
+}
+
+
 /*
  * Close the given file descriptor and open the next one, whose number in
  * the list is "filenum", returning the new file descriptor (or negative on
  * error). It is an error if the next input file is the same as the file
  * stdout is pointing to.
  *
- * Updates state->current_file in the process.
+ * Updates state->status.current_input_file in the process.
  */
-int pv_next_file(pvstate_t state, int filenum, int oldfd)
+int pv_next_file(pvstate_t state, unsigned int filenum, int oldfd)
 {
 	struct stat isb;
 	struct stat osb;
-	int fd, input_file_is_stdout;
+	int fd;
+	bool input_file_is_stdout;
 
-	if (oldfd > 0) {
-		if (close(oldfd)) {
-			pv_error(state, "%s: %s",
-				 _("failed to close file"),
-				 strerror(errno));
-			state->exit_status |= 8;
+	if (oldfd >= 0) {
+		if (0 != close(oldfd)) {
+			pv_error(state, "%s: %s", _("failed to close file"), strerror(errno));
+			state->status.exit_status |= 8;
 			return -1;
 		}
 	}
 
-	if (filenum >= state->input_file_count) {
-		state->exit_status |= 8;
+	if (filenum >= state->files.file_count) {
+		debug("%s: %d >= %d", "filenum too large", filenum, state->files.file_count);
+		state->status.exit_status |= 8;
 		return -1;
 	}
 
-	if (filenum < 0) {
-		state->exit_status |= 8;
-		return -1;
-	}
-
-	if (0 == strcmp(state->input_files[filenum], "-")) {
+	if ((NULL == state->files.filename) || (0 == strcmp(state->files.filename[filenum], "-"))) {
 		fd = STDIN_FILENO;
 	} else {
-		fd = open(state->input_files[filenum], O_RDONLY);
+		fd = open(state->files.filename[filenum], O_RDONLY);	/* flawfinder: ignore */
+		/*
+		 * flawfinder rationale: the input file list is under the
+		 * control of the operator by its nature, so we can't refuse
+		 * to open symlinks etc as that would be counterintuitive.
+		 */
 		if (fd < 0) {
 			pv_error(state, "%s: %s: %s",
-				 _("failed to read file"),
-				 state->input_files[filenum],
-				 strerror(errno));
-			state->exit_status |= 2;
+				 _("failed to read file"), state->files.filename[filenum], strerror(errno));
+			state->status.exit_status |= 2;
 			return -1;
 		}
 	}
 
-	if (fstat(fd, &isb)) {
-		pv_error(state, "%s: %s: %s",
-			 _("failed to stat file"),
-			 state->input_files[filenum], strerror(errno));
-		close(fd);
-		state->exit_status |= 2;
+	if (0 != fstat(fd, &isb)) {
+		pv_error(state, "%s: %s: %s", _("failed to stat file"),
+			 NULL == state->files.filename ? "-" : state->files.filename[filenum], strerror(errno));
+		(void) close(fd);
+		state->status.exit_status |= 2;
 		return -1;
 	}
 
-	if (fstat(STDOUT_FILENO, &osb)) {
-		pv_error(state, "%s: %s",
-			 _("failed to stat output file"), strerror(errno));
-		close(fd);
-		state->exit_status |= 2;
+	if (0 != fstat(STDOUT_FILENO, &osb)) {
+		pv_error(state, "%s: %s", _("failed to stat output file"), strerror(errno));
+		(void) close(fd);
+		state->status.exit_status |= 2;
 		return -1;
 	}
 
@@ -270,42 +339,112 @@ int pv_next_file(pvstate_t state, int filenum, int oldfd)
 	 * destination. This restriction is ignored for anything other
 	 * than a regular file or block device.
 	 */
-	input_file_is_stdout = 1;
+	input_file_is_stdout = true;
 	if (isb.st_dev != osb.st_dev)
-		input_file_is_stdout = 0;
+		input_file_is_stdout = false;
 	if (isb.st_ino != osb.st_ino)
-		input_file_is_stdout = 0;
-	if (isatty(fd))
-		input_file_is_stdout = 0;
+		input_file_is_stdout = false;
+	if (0 != isatty(fd))
+		input_file_is_stdout = false;
 	if ((!S_ISREG(isb.st_mode)) && (!S_ISBLK(isb.st_mode)))
-		input_file_is_stdout = 0;
+		input_file_is_stdout = false;
 
 	if (input_file_is_stdout) {
-		pv_error(state, "%s: %s",
-			 _("input file is output file"),
-			 state->input_files[filenum]);
-		close(fd);
-		state->exit_status |= 4;
+		pv_error(state, "%s: %s", _("input file is output file"),
+			 NULL == state->files.filename ? "-" : state->files.filename[filenum]);
+		(void) close(fd);
+		state->status.exit_status |= 4;
 		return -1;
 	}
 
-	state->current_file = state->input_files[filenum];
-	if (0 == strcmp(state->input_files[filenum], "-")) {
-		state->current_file = "(stdin)";
-	}
+	state->status.current_input_file = filenum;
 #ifdef O_DIRECT
 	/*
 	 * Set or clear O_DIRECT on the file descriptor.
 	 */
-	fcntl(fd, F_SETFL,
-	      (state->direct_io ? O_DIRECT : 0) | fcntl(fd, F_GETFL));
+	if (0 != fcntl(fd, F_SETFL, (state->control.direct_io ? O_DIRECT : 0) | fcntl(fd, F_GETFL))) {
+		/*@-compdef@ */
+		/*
+		 * splint - passed or returned storage is undefined - but at
+		 * this point we know the input file list is been populated,
+		 * so that's OK.
+		 */
+		debug("%s: %s: %s", pv_current_file_name(state), "fcntl", strerror(errno));
+		/*@+compdef@ */
+	}
 	/*
 	 * We don't clear direct_io_changed here, to avoid race conditions
 	 * that could cause the input and output settings to differ.
 	 */
 #endif				/* O_DIRECT */
 
+	debug("%s: %d: %s: fd=%d", "next file opened", filenum, pv_current_file_name(state), fd);
+
 	return fd;
 }
 
+
+/*
+ * Return the name of the current file.  The returned buffer may point to
+ * internal state and must not be passed to free() or used after "state" is
+ * freed.
+ */
+/*@out@*/ const char *pv_current_file_name(pvstate_t state)
+{
+	static char *str_none = NULL;
+	static char *str_stdin = NULL;
+	const char *input_file_name = NULL;
+
+	/*@-observertrans@ */
+	/*@-onlytrans@ */
+	/*@-statictrans@ */
+	/*
+	 * Here we are doing bad things with regards to whether the returned
+	 * string is an allocated string from the state->files.filename array,
+	 * a constant string, or a returned string from gettext(), but it
+	 * has no impact.  We explicitly document, above, that the returned
+	 * string expires with the state, and hence switch off the
+	 * associated splint warnings.
+	 */
+
+	if (NULL == str_none)
+		str_none = _("(none)");
+	if (NULL == str_stdin)
+		str_stdin = _("(stdin)");
+
+	/* Fallback in case of translation failure. */
+	if (NULL == str_none)
+		str_none = "(none)";
+	if (NULL == str_stdin)
+		str_stdin = "(stdin)";
+
+	if (state->status.current_input_file < 0)
+		return str_none;
+	if ((unsigned int) (state->status.current_input_file) >= state->files.file_count)
+		return str_none;
+
+	if (NULL == state->files.filename) {
+		input_file_name = NULL;
+	} else {
+		input_file_name = state->files.filename[state->status.current_input_file];
+	}
+	if (NULL == input_file_name)
+		return str_none;
+	if (0 == strcmp(input_file_name, "-"))
+		return str_stdin;
+
+	/*@-compdef@ */
+	return input_file_name;
+	/*@+compdef@ */
+	/*
+	 * splint warns about state->files.filename being undefined, but we
+	 * know it's been populated fully by the time this function is
+	 * called.
+	 */
+
+	/*@+statictrans@ */
+	/*@+onlytrans@ */
+	/*@+observertrans@ */
+}
+
 /* EOF */

src/pv/number.c

@@ -1,9 +1,9 @@
 /*
  * Functions for converting strings to numbers.
  *
- * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023 Andrew Wood
+ * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2024 Andrew Wood
  *
- * Distributed under the Artistic License v2.0; see `doc/COPYING'.
+ * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */
 
 #include "config.h"
@@ -24,64 +24,84 @@ static bool pv__isdigit(char c)
 
 
 /*
- * Return the numeric value of "str", as an unsigned long long.
+ * Return the numeric value of "str", as an off_t, where "str" is expected
+ * to be a sequence of digits (without a thousands separator), possibly with
+ * a fractional part, optionally followed by a units suffix such as "K" for
+ * kibibytes.  If "decimal_units" is true, suffixes are interpreted as
+ * multiples of 1000, rather than multiples of 1024.
  */
-unsigned long long pv_getnum_ull(const char *str)
+off_t pv_getnum_size(const char *str, bool decimal_units)
 {
-	unsigned long long n = 0;
-	unsigned long long decimal = 0;
-	unsigned int decdivisor = 1;
-	unsigned int shift = 0;
+	off_t integral_part = 0;
+	off_t fractional_part = 0;
+	unsigned int fractional_divisor = 1;
+	unsigned int binary_shift = 0;
+	off_t decimal_multiplier = 0;
 
 	if (NULL == str)
-		return n;
+		return (off_t) 0;
 
+	/* Skip any non-numeric leading characters. */
 	while (str[0] != '\0' && (!pv__isdigit(str[0])))
 		str++;
 
+	/*
+	 * Parse the integral part of the number - the digits before the
+	 * decimal mark or units.
+	 */
 	for (; pv__isdigit(str[0]); str++) {
-		n = n * 10;
-		n += (unsigned long long) (str[0] - '0');
+		integral_part = integral_part * 10;
+		integral_part += (off_t) (str[0] - '0');
 	}
 
 	/*
-	 * If a decimal value was given, skip the decimal part.
+	 * If the next character is a decimal mark, skip over it and parse
+	 * the following digits as the fractional part of the number.
+	 *
+	 * Note that we hard-code the decimal mark as '.' or ',' so this
+	 * will fail if there are any locales whose decimal mark is not one
+	 * of those two characters.
 	 */
 	if (('.' == str[0]) || (',' == str[0])) {
 		str++;
 		for (; pv__isdigit(str[0]); str++) {
-			if (decdivisor < 10000) {
-				decimal = decimal * 10;
-				decimal +=
-				    (unsigned long long) (str[0] - '0');
-				decdivisor = decdivisor * 10;
+			/* Stop counting below 0.0001. */
+			if (fractional_divisor < 10000) {
+				fractional_part = fractional_part * 10;
+				fractional_part += (off_t) (str[0] - '0');
+				fractional_divisor = fractional_divisor * 10;
 			}
 		}
 	}
 
 	/*
 	 * Parse any units given (K=KiB=*1024, M=MiB=1024KiB, G=GiB=1024MiB,
-	 * T=TiB=1024GiB).
+	 * T=TiB=1024GiB; replace 1024 with 1000 if decimal_units is true).
 	 */
 	if (str[0] != '\0') {
+		/* Skip any spaces or tabs after the digits. */
 		while ((' ' == str[0]) || ('\t' == str[0]))
 			str++;
 		switch (str[0]) {
 		case 'k':
 		case 'K':
-			shift = 10;
+			binary_shift = 10;
+			decimal_multiplier = 1000;
 			break;
 		case 'm':
 		case 'M':
-			shift = 20;
+			binary_shift = 20;
+			decimal_multiplier = 1000000;
 			break;
 		case 'g':
 		case 'G':
-			shift = 30;
+			binary_shift = 30;
+			decimal_multiplier = 1000000000;
 			break;
 		case 't':
 		case 'T':
-			shift = 40;
+			binary_shift = 40;
+			decimal_multiplier = 1000000000000;
 			break;
 		default:
 			break;
@@ -89,109 +109,155 @@ unsigned long long pv_getnum_ull(const char *str)
 	}
 
 	/*
-	 * Binary left-shift the supplied number by "shift" times, i.e.
-	 * apply the given units (KiB, MiB, etc) to it, but never shift left
-	 * more than 30 at a time to avoid overflows.
+	 * If decimal_units is false, zero decimal_multiplier; if true, zero
+	 * binary_shift.  This is so we only do one or the other.
 	 */
-	while (shift > 0) {
-		unsigned int shiftby;
-
-		shiftby = shift;
-		if (shiftby > 30)
-			shiftby = 30;
-
-		n = n << shiftby;
-		decimal = decimal << shiftby;
-		shift -= shiftby;
+	if (decimal_units) {
+		binary_shift = 0;
+	} else {
+		decimal_multiplier = 0;
 	}
 
 	/*
-	 * Add any decimal component.
+	 * Binary left-shift the supplied number by "binary_shift" times, i.e.
+	 * apply the given units (KiB, MiB, etc) to it, but never shift left
+	 * more than 30 at a time to avoid overflows.
 	 */
-	decimal = decimal / decdivisor;
-	n += decimal;
+	while (binary_shift > 0) {
+		unsigned int shiftby;
 
-	return n;
+		shiftby = binary_shift;
+		if (shiftby > 30)
+			shiftby = 30;
+
+		/*@-shiftimplementation@ */
+		/*
+		 * splint note: ignore the fact that the types we are
+		 * shifting are signed, because we know they are definitely
+		 * not negative.
+		 */
+		integral_part = (off_t) (integral_part << shiftby);
+		fractional_part = (off_t) (fractional_part << shiftby);
+		/*@+shiftimplementation@ */
+
+		binary_shift -= shiftby;
+	}
+
+	/*
+	 * Multiply the supplied number by the decimal multiplier.
+	 */
+	if (decimal_multiplier > 0) {
+		integral_part = integral_part * decimal_multiplier;
+		fractional_part = fractional_part * decimal_multiplier;
+	}
+
+	/*
+	 * Add the fractional part, divided by its divisor, to the integral
+	 * part, now that we've multiplied everything by the appropriate
+	 * units.
+	 */
+	fractional_part = fractional_part / fractional_divisor;
+	integral_part += fractional_part;
+
+	return integral_part;
 }
 
 
 /*
- * Return the numeric value of "str", as a double.
+ * Return the numeric value of "str", as a double, where "str" is expected
+ * to be a positive decimal number expressing a time interval.
  */
-double pv_getnum_d(const char *str)
+double pv_getnum_interval(const char *str)
 {
-	double n = 0.0;
+	double result = 0.0;
 	double step = 1;
 
 	if (NULL == str)
-		return n;
+		return 0.0;
 
+	/* Skip any non-digit characters at the start. */
 	while (str[0] != '\0' && (!pv__isdigit(str[0])))
 		str++;
 
+	/* Parse the digits before the decimal mark. */
 	for (; pv__isdigit(str[0]); str++) {
-		n = n * 10;
-		n += (double) (str[0] - '0');
+		result = result * 10;
+		result += (double) (str[0] - '0');
 	}
 
+	/* If there is no decimal mark, return the value as-is. */
 	if ((str[0] != '.') && (str[0] != ','))
-		return n;
+		return result;
 
+	/* Move past the decimal mark. */
 	str++;
 
+	/* Parse the digits after the decimal mark, up to 0.0000001. */
 	for (; pv__isdigit(str[0]) && step < 1000000; str++) {
 		step = step * 10;
-		n += ((double) (str[0] - '0')) / step;
+		result += ((double) (str[0] - '0')) / step;
 	}
 
-	return n;
+	return result;
 }
 
 
 /*
- * Return the numeric value of "str", as an unsigned int.
+ * Return the numeric value of "str", as an unsigned int, following the same
+ * rules as pv_getnum_size(), expecting "str" to express a value to be used
+ * as a count (such as number of screen columns, or size of a buffer).
  */
-unsigned int pv_getnum_ui(const char *str)
+unsigned int pv_getnum_count(const char *str, bool decimal_units)
 {
-	return (unsigned int) pv_getnum_ull(str);
+	return (unsigned int) pv_getnum_size(str, decimal_units);
 }
 
 
 /*
- * Return nonzero if the given string is not a valid number of the given
- * type.
+ * Return true if the given string is a valid number of the given type.
  */
-int pv_getnum_check(const char *str, pv_numtype_t type)
+bool pv_getnum_check(const char *str, pv_numtype type)
 {
-	if (0 == str)
-		return 1;
+	if (NULL == str)
+		return false;
 
+	/* Skip leading spaces and tabs. */
 	while ((' ' == str[0]) || ('\t' == str[0]))
 		str++;
 
+	/* If the next character isn't a digit, this isn't a number. */
 	if (!pv__isdigit(str[0]))
-		return 1;
+		return false;
 
+	/* Skip over the digits. */
 	for (; pv__isdigit(str[0]); str++);
 
+	/*
+	 * If there's a decimal mark (see note in pv_getnum_size() above),
+	 * check that too.
+	 */
 	if (('.' == str[0]) || (',' == str[0])) {
+		/* Integers should have no decimal mark. */
 		if (type == PV_NUMTYPE_INTEGER)
-			return 1;
+			return false;
+		/* Skip the decimal mark, then all digits. */
 		str++;
 		for (; pv__isdigit(str[0]); str++);
 	}
 
+	/* If the string ends here, this is a valid number. */
 	if ('\0' == str[0])
-		return 0;
+		return true;
 
-	/*
-	 * Suffixes are not allowed for doubles, only for integers.
-	 */
+	/* A units suffix is not allowed for doubles, only for integers. */
 	if (type == PV_NUMTYPE_DOUBLE)
-		return 1;
+		return false;
 
+	/* Skip trailing spaces or tabs. */
 	while ((' ' == str[0]) || ('\t' == str[0]))
 		str++;
+
+	/* Check the units suffix is one we know about. */
 	switch (str[0]) {
 	case 'k':
 	case 'K':
@@ -204,13 +270,14 @@ int pv_getnum_check(const char *str, pv_numtype_t type)
 		str++;
 		break;
 	default:
-		return 1;
+		return false;
 	}
 
+	/* If the string has trailing text, it's not a valid number. */
 	if (str[0] != '\0')
-		return 1;
+		return false;
 
-	return 0;
+	return true;
 }
 
 /* EOF */

src/pv/signal.c

@@ -1,18 +1,19 @@
 /*
  * Signal handling functions.
  *
- * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023 Andrew Wood
+ * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2024 Andrew Wood
  *
- * Distributed under the Artistic License v2.0; see `doc/COPYING'.
+ * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */
 
 #include "config.h"
 #include "pv.h"
 #include "pv-internal.h"
 
+#include <string.h>
+#include <errno.h>
 #include <signal.h>
 #include <termios.h>
-#include <time.h>
 #include <unistd.h>
 #include <sys/stat.h>
 #include <fcntl.h>
@@ -21,9 +22,47 @@
 void pv_crs_needreinit(pvstate_t);
 #endif
 
-static pvstate_t pv_sig_state = NULL;
+/*@null@*/ static pvstate_t pv_sig_state = NULL;
 
 
+/*
+ * Ensure that terminal attribute TOSTOP is set.  If we have to set it,
+ * record that fact by setting the state boolean "pv_tty_tostop_added" to
+ * true, so that in pv_sig_fini() we can turn it back off again.
+ */
+static void pv_sig_ensure_tty_tostop()
+{
+	struct termios terminal_attributes;
+
+	if (NULL == pv_sig_state)
+		return;
+
+	if (0 != tcgetattr(STDERR_FILENO, &terminal_attributes)) {
+		debug("%s: %s", "failed to read terminal attributes", strerror(errno));
+		return;
+	}
+
+	if (0 == (terminal_attributes.c_lflag & TOSTOP)) {
+		terminal_attributes.c_lflag |= TOSTOP;
+		if (0 == tcsetattr(STDERR_FILENO, TCSANOW, &terminal_attributes)) {
+			pv_sig_state->signal.pv_tty_tostop_added = true;
+			debug("%s", "set terminal TOSTOP attribute");
+		} else {
+			debug("%s: %s", "failed to set terminal TOSTOP attribute", strerror(errno));
+		}
+#if HAVE_IPC
+		/*
+		 * In "-c" mode with IPC, make all "pv -c" instances aware
+		 * that we set TOSTOP, so the last one can clear it on exit.
+		 */
+		if (pv_sig_state->control.cursor && (NULL != pv_sig_state->cursor.shared)
+		    && (!pv_sig_state->cursor.noipc)) {
+			pv_sig_state->cursor.shared->tty_tostop_added = true;
+		}
+#endif
+	}
+}
+
 /*
  * Handle SIGTTOU (tty output for background process) by redirecting stderr
  * to /dev/null, so that we can be stopped and backgrounded without messing
@@ -31,20 +70,39 @@ static pvstate_t pv_sig_state = NULL;
  * subsequent SIGCONT we can try writing to the terminal again, in case we
  * get backgrounded and later get foregrounded again.
  */
-static void pv_sig_ttou( __attribute__ ((unused))
+static void pv_sig_ttou( /*@unused@ */  __attribute__((unused))
 			int s)
 {
 	int fd;
 
-	fd = open("/dev/null", O_RDWR);
-	if (fd < 0)
+	if (NULL == pv_sig_state)
 		return;
 
-	if (-1 == pv_sig_state->pv_sig_old_stderr)
-		pv_sig_state->pv_sig_old_stderr = dup(STDERR_FILENO);
+	fd = open("/dev/null", O_RDWR);	    /* flawfinder: ignore */
+	if (fd < 0) {
+		debug("%s: %s", "failed to open /dev/null", strerror(errno));
+		return;
+	}
 
-	dup2(fd, STDERR_FILENO);
-	close(fd);
+	/*
+	 * flawfinder rationale: not checking for symlinks because this is
+	 * explicitly a device file under /dev so we assume it is safe to
+	 * open.
+	 *
+	 * TODO: look at just preventing stderr output instead of writing to
+	 * stderr while backgrounded.
+	 */
+
+	if (-1 == pv_sig_state->signal.old_stderr)
+		pv_sig_state->signal.old_stderr = dup(STDERR_FILENO);
+
+	if (dup2(fd, STDERR_FILENO) < 0) {
+		debug("%s: %s", "failed to replace stderr", strerror(errno));
+	}
+
+	if (0 != close(fd)) {
+		debug("%s: %s", "failed to close /dev/null", strerror(errno));
+	}
 }
 
 
@@ -52,11 +110,15 @@ static void pv_sig_ttou( __attribute__ ((unused))
  * Handle SIGTSTP (stop typed at tty) by storing the time the signal
  * happened for later use by pv_sig_cont(), and then stopping the process.
  */
-static void pv_sig_tstp( __attribute__ ((unused))
+static void pv_sig_tstp( /*@unused@ */  __attribute__((unused))
 			int s)
 {
-	gettimeofday(&(pv_sig_state->pv_sig_tstp_time), NULL);
-	raise(SIGSTOP);
+	if (NULL == pv_sig_state)
+		return;
+	pv_elapsedtime_read(&(pv_sig_state->signal.tstp_time));
+	if (0 != raise(SIGSTOP)) {
+		debug("%s: %s", "raise", strerror(errno));
+	}
 }
 
 
@@ -65,51 +127,53 @@ static void pv_sig_tstp( __attribute__ ((unused))
  * last SIGTSTP to the elapsed time offset, and by trying to write to the
  * terminal again (by replacing the /dev/null stderr with the old stderr).
  */
-static void pv_sig_cont( __attribute__ ((unused))
+static void pv_sig_cont( /*@unused@ */  __attribute__((unused))
 			int s)
 {
-	struct timeval tv;
-	struct termios t;
+	struct timespec current_time;
+	struct timespec time_spent_stopped;
 
-	pv_sig_state->pv_sig_newsize = 1;
-
-	if (0 == pv_sig_state->pv_sig_tstp_time.tv_sec) {
-		tcgetattr(STDERR_FILENO, &t);
-		t.c_lflag |= TOSTOP;
-		tcsetattr(STDERR_FILENO, TCSANOW, &t);
-#ifdef HAVE_IPC
-		pv_crs_needreinit(pv_sig_state);
-#endif
+	if (NULL == pv_sig_state)
 		return;
+
+	pv_sig_state->flag.terminal_resized = 1;
+
+	/*
+	 * We can only make the time adjustments if this SIGCONT followed a
+	 * SIGTSTP such that we have a stop time.
+	 */
+	if (0 != pv_sig_state->signal.tstp_time.tv_sec) {
+
+		memset(&current_time, 0, sizeof(current_time));
+		memset(&time_spent_stopped, 0, sizeof(time_spent_stopped));
+
+		pv_elapsedtime_read(&current_time);
+
+		/* time spent stopped = current time - time SIGTSTP received */
+		pv_elapsedtime_subtract(&time_spent_stopped, &current_time, &(pv_sig_state->signal.tstp_time));
+
+		/* add time spent stopped the total stopped-time count */
+		pv_elapsedtime_add(&(pv_sig_state->signal.toffset), &(pv_sig_state->signal.toffset),
+				   &time_spent_stopped);
+
+		/* reset the SIGTSTP receipt time */
+		pv_elapsedtime_zero(&(pv_sig_state->signal.tstp_time));
 	}
 
-	gettimeofday(&tv, NULL);
-
-	pv_sig_state->pv_sig_toffset.tv_sec +=
-	    (tv.tv_sec - pv_sig_state->pv_sig_tstp_time.tv_sec);
-	pv_sig_state->pv_sig_toffset.tv_usec +=
-	    (tv.tv_usec - pv_sig_state->pv_sig_tstp_time.tv_usec);
-	if (pv_sig_state->pv_sig_toffset.tv_usec >= 1000000) {
-		pv_sig_state->pv_sig_toffset.tv_sec++;
-		pv_sig_state->pv_sig_toffset.tv_usec -= 1000000;
-	}
-	if (pv_sig_state->pv_sig_toffset.tv_usec < 0) {
-		pv_sig_state->pv_sig_toffset.tv_sec--;
-		pv_sig_state->pv_sig_toffset.tv_usec += 1000000;
+	/*
+	 * Restore the old stderr, if we had replaced it.
+	 */
+	if (pv_sig_state->signal.old_stderr != -1) {
+		if (dup2(pv_sig_state->signal.old_stderr, STDERR_FILENO) < 0) {
+			debug("%s: %s", "failed to restore old stderr", strerror(errno));
+		}
+		if (0 != close(pv_sig_state->signal.old_stderr)) {
+			debug("%s: %s", "failed to close duplicate old stderr", strerror(errno));
+		}
+		pv_sig_state->signal.old_stderr = -1;
 	}
 
-	pv_sig_state->pv_sig_tstp_time.tv_sec = 0;
-	pv_sig_state->pv_sig_tstp_time.tv_usec = 0;
-
-	if (pv_sig_state->pv_sig_old_stderr != -1) {
-		dup2(pv_sig_state->pv_sig_old_stderr, STDERR_FILENO);
-		close(pv_sig_state->pv_sig_old_stderr);
-		pv_sig_state->pv_sig_old_stderr = -1;
-	}
-
-	tcgetattr(STDERR_FILENO, &t);
-	t.c_lflag |= TOSTOP;
-	tcsetattr(STDERR_FILENO, TCSANOW, &t);
+	pv_sig_ensure_tty_tostop();
 
 #ifdef HAVE_IPC
 	pv_crs_needreinit(pv_sig_state);
@@ -117,23 +181,82 @@ static void pv_sig_cont( __attribute__ ((unused))
 }
 
 
+#ifdef SIGWINCH
 /*
  * Handle SIGWINCH (window size changed) by setting a flag.
  */
-static void pv_sig_winch( __attribute__ ((unused))
+static void pv_sig_winch( /*@unused@ */  __attribute__((unused))
 			 int s)
 {
-	pv_sig_state->pv_sig_newsize = 1;
+	if (NULL == pv_sig_state)
+		return;
+	pv_sig_state->flag.terminal_resized = 1;
 }
+#endif
 
 
 /*
  * Handle termination signals by setting the abort flag.
  */
-static void pv_sig_term( __attribute__ ((unused))
+static void pv_sig_term( /*@unused@ */  __attribute__((unused))
 			int s)
 {
-	pv_sig_state->pv_sig_abort = 1;
+	if (NULL == pv_sig_state)
+		return;
+	pv_sig_state->flag.trigger_exit = 1;
+}
+
+
+#ifdef SA_SIGINFO
+/*
+ * Handle a SIGUSR2 by setting a flag to say we received it, after recording
+ * the sending PID.
+ */
+static void pv_sig_usr2( /*@unused@ */  __attribute__((unused))
+			int sig, siginfo_t * info, /*@unused@ */  __attribute__((unused))
+			void *ucontext)
+{
+	if (NULL == pv_sig_state)
+		return;
+	if (NULL == info)
+		return;
+	pv_sig_state->signal.rxusr2 = 1;
+	pv_sig_state->signal.sender = info->si_pid;
+}
+
+
+/*
+ * Return true if a SIGUSR2 signal has been received since the last time
+ * this function was called, populating *pid with the sending PID if so.
+ */
+bool pv_sigusr2_received(pvstate_t state, pid_t * pid)
+{
+	if (NULL == state)
+		return false;
+	if (0 == state->signal.rxusr2)
+		return false;
+	if (NULL != pid)
+		*pid = state->signal.sender;
+	state->signal.rxusr2 = 0;
+	return true;
+}
+
+#endif
+
+
+/*
+ * Handle alarm signals by doing nothing.
+ *
+ * Note that we have to use a signal handler like this, instead of using
+ * SIG_IGN, because if we ignore the signal entirely, it does nothing,
+ * including not interrupting blocking write() calls - which is what we're
+ * using alarm signals for in the first place.
+ */
+static void pv_sig_alrm( /*@unused@ */  __attribute__((unused))
+			int s)
+{
+	debug("%s", "SIGALRM received");
+	/* Do nothing. */
 }
 
 
@@ -142,42 +265,55 @@ static void pv_sig_term( __attribute__ ((unused))
  */
 void pv_sig_init(pvstate_t state)
 {
-	struct sigaction sa;
+	static struct sigaction sa;
+
+	memset(&sa, 0, sizeof(sa));
+
+	/*
+	 * Note that wherever we use a "struct sigaction", we declare it
+	 * static and explicitly zero it before use, because it may contain
+	 * deeper structures (e.g.  "sigset_t") which trigger splint
+	 * warnings about potential memory leaks.
+	 */
 
 	pv_sig_state = state;
 
-	pv_sig_state->pv_sig_old_stderr = -1;
-	pv_sig_state->pv_sig_tstp_time.tv_sec = 0;
-	pv_sig_state->pv_sig_tstp_time.tv_usec = 0;
-	pv_sig_state->pv_sig_toffset.tv_sec = 0;
-	pv_sig_state->pv_sig_toffset.tv_usec = 0;
+	pv_sig_state->signal.old_stderr = -1;
+	pv_elapsedtime_zero(&(pv_sig_state->signal.tstp_time));
+	pv_elapsedtime_zero(&(pv_sig_state->signal.toffset));
+
+	/*
+	 * Note that we cast all sigemptyset() and sigaction() return values
+	 * to void, because there's nothing we can reasonably do about any
+	 * conceivable error they may return.
+	 */
 
 	/*
 	 * Ignore SIGPIPE, so we don't die if stdout is a pipe and the other
 	 * end closes unexpectedly.
 	 */
 	sa.sa_handler = SIG_IGN;
-	sigemptyset(&(sa.sa_mask));
+	(void) sigemptyset(&(sa.sa_mask));
 	sa.sa_flags = 0;
-	sigaction(SIGPIPE, &sa, &(pv_sig_state->pv_sig_old_sigpipe));
+	(void) sigaction(SIGPIPE, &sa, &(pv_sig_state->signal.old_sigpipe));
 
 	/*
 	 * Handle SIGTTOU by continuing with output switched off, so that we
 	 * can be stopped and backgrounded without messing up the terminal.
 	 */
 	sa.sa_handler = pv_sig_ttou;
-	sigemptyset(&(sa.sa_mask));
+	(void) sigemptyset(&(sa.sa_mask));
 	sa.sa_flags = 0;
-	sigaction(SIGTTOU, &sa, &(pv_sig_state->pv_sig_old_sigttou));
+	(void) sigaction(SIGTTOU, &sa, &(pv_sig_state->signal.old_sigttou));
 
 	/*
 	 * Handle SIGTSTP by storing the time the signal happened for later
 	 * use by pv_sig_cont(), and then stopping the process.
 	 */
 	sa.sa_handler = pv_sig_tstp;
-	sigemptyset(&(sa.sa_mask));
+	(void) sigemptyset(&(sa.sa_mask));
 	sa.sa_flags = 0;
-	sigaction(SIGTSTP, &sa, &(pv_sig_state->pv_sig_old_sigtstp));
+	(void) sigaction(SIGTSTP, &sa, &(pv_sig_state->signal.old_sigtstp));
 
 	/*
 	 * Handle SIGCONT by adding the elapsed time since the last SIGTSTP
@@ -185,53 +321,144 @@ void pv_sig_init(pvstate_t state)
 	 * terminal again.
 	 */
 	sa.sa_handler = pv_sig_cont;
-	sigemptyset(&(sa.sa_mask));
+	(void) sigemptyset(&(sa.sa_mask));
 	sa.sa_flags = 0;
-	sigaction(SIGCONT, &sa, &(pv_sig_state->pv_sig_old_sigcont));
+	(void) sigaction(SIGCONT, &sa, &(pv_sig_state->signal.old_sigcont));
 
 	/*
 	 * Handle SIGWINCH by setting a flag to let the main loop know it
 	 * has to reread the terminal size.
 	 */
+#ifdef SIGWINCH
 	sa.sa_handler = pv_sig_winch;
-	sigemptyset(&(sa.sa_mask));
+	(void) sigemptyset(&(sa.sa_mask));
 	sa.sa_flags = 0;
-	sigaction(SIGWINCH, &sa, &(pv_sig_state->pv_sig_old_sigwinch));
+	(void) sigaction(SIGWINCH, &sa, &(pv_sig_state->signal.old_sigwinch));
+#endif
 
 	/*
 	 * Handle SIGINT, SIGHUP, SIGTERM by setting a flag to let the
 	 * main loop know it should quit now.
 	 */
 	sa.sa_handler = pv_sig_term;
-	sigemptyset(&(sa.sa_mask));
+	(void) sigemptyset(&(sa.sa_mask));
 	sa.sa_flags = 0;
-	sigaction(SIGINT, &sa, &(pv_sig_state->pv_sig_old_sigint));
+	(void) sigaction(SIGINT, &sa, &(pv_sig_state->signal.old_sigint));
 
 	sa.sa_handler = pv_sig_term;
-	sigemptyset(&(sa.sa_mask));
+	(void) sigemptyset(&(sa.sa_mask));
 	sa.sa_flags = 0;
-	sigaction(SIGHUP, &sa, &(pv_sig_state->pv_sig_old_sighup));
+	(void) sigaction(SIGHUP, &sa, &(pv_sig_state->signal.old_sighup));
 
 	sa.sa_handler = pv_sig_term;
-	sigemptyset(&(sa.sa_mask));
+	(void) sigemptyset(&(sa.sa_mask));
 	sa.sa_flags = 0;
-	sigaction(SIGTERM, &sa, &(pv_sig_state->pv_sig_old_sigterm));
+	(void) sigaction(SIGTERM, &sa, &(pv_sig_state->signal.old_sigterm));
+
+#ifdef SA_SIGINFO
+	/*
+	 * Handle SIGUSR2 by setting a flag to say the signal has been
+	 * received, and storing the sending process's PID.
+	 */
+	memset(&sa, 0, sizeof(sa));
+	sa.sa_sigaction = pv_sig_usr2;
+	(void) sigemptyset(&(sa.sa_mask));
+	/*@-unrecog@ *//* splint doesn't know about SA_SIGINFO */
+	sa.sa_flags = SA_SIGINFO;
+	/*@+unrecog@ */
+	(void) sigaction(SIGUSR2, &sa, &(pv_sig_state->signal.old_sigusr2));
+	memset(&sa, 0, sizeof(sa));
+#endif
+
+	/*
+	 * Ensure that the TOSTOP terminal attribute is set, so that a
+	 * SIGTTOU signal will be raised if we try to write to the terminal
+	 * while backgrounded (see the SIGTTOU handler above).
+	 */
+	pv_sig_ensure_tty_tostop();
+
+	/*
+	 * Handle SIGALRM by doing nothing, so we can use alarms or interval
+	 * timers to interrupt blocking writes (returning EINTR).
+	 */
+	sa.sa_handler = pv_sig_alrm;
+	(void) sigemptyset(&(sa.sa_mask));
+	sa.sa_flags = 0;
+	(void) sigaction(SIGALRM, &sa, &(pv_sig_state->signal.old_sigalrm));
 }
 
 
 /*
- * Shut down signal handling.
+ * Shut down signal handling.  If we had set the TOSTOP terminal attribute,
+ * and we're in the foreground, also turn that off (though if we're in
+ * cursor "-c" mode, only do that if we're the last PV instance, otherwise
+ * leave the terminal alone).
  */
-void pv_sig_fini( __attribute__ ((unused)) pvstate_t state)
+void pv_sig_fini( /*@unused@ */  __attribute__((unused)) pvstate_t state)
 {
-	sigaction(SIGPIPE, &(pv_sig_state->pv_sig_old_sigpipe), NULL);
-	sigaction(SIGTTOU, &(pv_sig_state->pv_sig_old_sigttou), NULL);
-	sigaction(SIGTSTP, &(pv_sig_state->pv_sig_old_sigtstp), NULL);
-	sigaction(SIGCONT, &(pv_sig_state->pv_sig_old_sigcont), NULL);
-	sigaction(SIGWINCH, &(pv_sig_state->pv_sig_old_sigwinch), NULL);
-	sigaction(SIGINT, &(pv_sig_state->pv_sig_old_sigint), NULL);
-	sigaction(SIGHUP, &(pv_sig_state->pv_sig_old_sighup), NULL);
-	sigaction(SIGTERM, &(pv_sig_state->pv_sig_old_sigterm), NULL);
+	bool need_to_clear_tostop = false;
+
+	if (NULL == pv_sig_state)
+		return;
+
+	(void) sigaction(SIGPIPE, &(pv_sig_state->signal.old_sigpipe), NULL);
+	(void) sigaction(SIGTTOU, &(pv_sig_state->signal.old_sigttou), NULL);
+	(void) sigaction(SIGTSTP, &(pv_sig_state->signal.old_sigtstp), NULL);
+	(void) sigaction(SIGCONT, &(pv_sig_state->signal.old_sigcont), NULL);
+#ifdef SIGWINCH
+	(void) sigaction(SIGWINCH, &(pv_sig_state->signal.old_sigwinch), NULL);
+#endif
+	(void) sigaction(SIGINT, &(pv_sig_state->signal.old_sigint), NULL);
+	(void) sigaction(SIGHUP, &(pv_sig_state->signal.old_sighup), NULL);
+	(void) sigaction(SIGTERM, &(pv_sig_state->signal.old_sigterm), NULL);
+#ifdef SA_SIGINFO
+	(void) sigaction(SIGUSR2, &(pv_sig_state->signal.old_sigusr2), NULL);
+#endif
+	(void) sigaction(SIGALRM, &(pv_sig_state->signal.old_sigalrm), NULL);
+
+	need_to_clear_tostop = pv_sig_state->signal.pv_tty_tostop_added;
+
+	if (pv_sig_state->control.cursor) {
+#ifdef HAVE_IPC
+		/*
+		 * We won't clear TOSTOP if other "pv -c" instances
+		 * were still running when pv_crs_fini() ran.
+		 *
+		 * TODO: we need a better way to determine if we're the last
+		 * "pv" left.
+		 */
+		if (pv_sig_state->control.cursor && pv_sig_state->cursor.pvcount > 1) {
+			need_to_clear_tostop = false;
+		}
+#else				/* !HAVE_IPC */
+		/*
+		 * Without IPC we can't tell whether the other "pv -c"
+		 * instances in the pipeline have finished so we will just
+		 * have to clear TOSTOP anyway.
+		 */
+#endif				/* !HAVE_IPC */
+	}
+
+	debug("%s=%s", "need_to_clear_tostop", need_to_clear_tostop ? "true" : "false");
+
+	if (need_to_clear_tostop && pv_in_foreground()) {
+		struct termios terminal_attributes;
+
+		debug("%s", "about to to clear TOSTOP terminal attribute if it is set");
+
+		if (0 != tcgetattr(STDERR_FILENO, &terminal_attributes)) {
+			debug("%s: %s", "tcgetattr", strerror(errno));
+		} else if (0 != (terminal_attributes.c_lflag & TOSTOP)) {
+			terminal_attributes.c_lflag -= TOSTOP;
+			if (0 == tcsetattr(STDERR_FILENO, TCSANOW, &terminal_attributes)) {
+				debug("%s", "cleared TOSTOP terminal attribute");
+			} else {
+				debug("%s: %s", "failed to clear TOSTOP terminal attribute", strerror(errno));
+			}
+		}
+
+		pv_sig_state->signal.pv_tty_tostop_added = false;
+	}
 }
 
 
@@ -240,17 +467,19 @@ void pv_sig_fini( __attribute__ ((unused)) pvstate_t state)
  */
 void pv_sig_nopause(void)
 {
-	struct sigaction sa;
+	static struct sigaction sa;
+
+	memset(&sa, 0, sizeof(sa));
 
 	sa.sa_handler = SIG_IGN;
-	sigemptyset(&(sa.sa_mask));
+	(void) sigemptyset(&(sa.sa_mask));
 	sa.sa_flags = 0;
-	sigaction(SIGTSTP, &sa, NULL);
+	(void) sigaction(SIGTSTP, &sa, NULL);
 
 	sa.sa_handler = SIG_DFL;
-	sigemptyset(&(sa.sa_mask));
+	(void) sigemptyset(&(sa.sa_mask));
 	sa.sa_flags = 0;
-	sigaction(SIGCONT, &sa, NULL);
+	(void) sigaction(SIGCONT, &sa, NULL);
 }
 
 
@@ -259,17 +488,19 @@ void pv_sig_nopause(void)
  */
 void pv_sig_allowpause(void)
 {
-	struct sigaction sa;
+	static struct sigaction sa;
+
+	memset(&sa, 0, sizeof(sa));
 
 	sa.sa_handler = pv_sig_tstp;
-	sigemptyset(&(sa.sa_mask));
+	(void) sigemptyset(&(sa.sa_mask));
 	sa.sa_flags = 0;
-	sigaction(SIGTSTP, &sa, NULL);
+	(void) sigaction(SIGTSTP, &sa, NULL);
 
 	sa.sa_handler = pv_sig_cont;
-	sigemptyset(&(sa.sa_mask));
+	(void) sigemptyset(&(sa.sa_mask));
 	sa.sa_flags = 0;
-	sigaction(SIGCONT, &sa, NULL);
+	(void) sigaction(SIGCONT, &sa, NULL);
 }
 
 
@@ -282,24 +513,29 @@ void pv_sig_allowpause(void)
 void pv_sig_checkbg(void)
 {
 	static time_t next_check = 0;
-	struct termios t;
+
+	if (NULL == pv_sig_state)
+		return;
 
 	if (time(NULL) < next_check)
 		return;
 
 	next_check = time(NULL) + 1;
 
-	if (-1 == pv_sig_state->pv_sig_old_stderr)
+	if (-1 == pv_sig_state->signal.old_stderr)
 		return;
 
-	dup2(pv_sig_state->pv_sig_old_stderr, STDERR_FILENO);
-	close(pv_sig_state->pv_sig_old_stderr);
-	pv_sig_state->pv_sig_old_stderr = -1;
+	if (dup2(pv_sig_state->signal.old_stderr, STDERR_FILENO) < 0) {
+		debug("%s: %s", "failed to restore old stderr", strerror(errno));
+	}
 
-	tcgetattr(STDERR_FILENO, &t);
-	t.c_lflag |= TOSTOP;
-	tcsetattr(STDERR_FILENO, TCSANOW, &t);
+	if (0 != close(pv_sig_state->signal.old_stderr)) {
+		debug("%s: %s", "failed to close duplicate old stderr", strerror(errno));
+	}
 
+	pv_sig_state->signal.old_stderr = -1;
+
+	pv_sig_ensure_tty_tostop();
 #ifdef HAVE_IPC
 	pv_crs_needreinit(pv_sig_state);
 #endif

src/pv/state.c

@@ -1,9 +1,9 @@
 /*
  * State management functions.
  *
- * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023 Andrew Wood
+ * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2024 Andrew Wood
  *
- * Distributed under the Artistic License v2.0; see `doc/COPYING'.
+ * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */
 
 #include "config.h"
@@ -20,21 +20,26 @@
 /* alloc / realloc history buffer */
 static void pv_alloc_history(pvstate_t state)
 {
-	if (NULL != state->history)
-		free(state->history);
-	state->history = NULL;
+	if (NULL != state->display.history)
+		free(state->display.history);
+	state->display.history = NULL;
 
-	state->history =
-	    calloc(state->history_len, sizeof(state->history[0]));
-	if (NULL == state->history) {
-		fprintf(stderr, "%s: %s: %s\n", state->program_name,
-			_("history structure allocation failed"),
-			strerror(errno));
+	state->display.history = calloc((size_t) (state->display.history_len), sizeof(state->display.history[0]));
+	if (NULL == state->display.history) {
+		/*@-mustfreefresh@ */
+		/*
+		 * splint note: the gettext calls made by _() cause memory
+		 * leak warnings, but in this case it's unavoidable, and
+		 * mitigated by the fact we only translate each string once.
+		 */
+		fprintf(stderr, "%s: %s: %s\n", state->status.program_name,
+			_("history structure allocation failed"), strerror(errno));
+		/*@+mustfreefresh@ */
 		return;
 	}
 
-	state->history_first = state->history_last = 0;
-	state->history[0].elapsed_sec = 0.0;	/* to be safe, memset() not recommended for doubles */
+	state->display.history_first = state->display.history_last = 0;
+	state->display.history[0].elapsed_sec = 0.0;	/* to be safe, memset() not recommended for doubles */
 }
 
 /*
@@ -47,36 +52,47 @@ pvstate_t pv_state_alloc(const char *program_name)
 	state = calloc(1, sizeof(*state));
 	if (NULL == state)
 		return NULL;
+	memset(state, 0, sizeof(*state));
 
-	state->program_name = program_name;
-	state->watch_pid = 0;
-	state->watch_fd = -1;
+	/* splint 3.1.2 thinks this is required for some reason. */
+	if (NULL != state->status.program_name) {
+		free(state->status.program_name);
+	}
+
+	state->status.program_name = pv_strdup(program_name);
+	if (NULL == state->status.program_name) {
+		free(state);
+		return NULL;
+	}
+
+	state->control.watch_pid = 0;
+	state->control.watch_fd = -1;
 #ifdef HAVE_IPC
-	state->crs_shmid = -1;
-	state->crs_pvcount = 1;
+	state->cursor.shmid = -1;
+	state->cursor.pvcount = 1;
 #endif				/* HAVE_IPC */
-	state->crs_lock_fd = -1;
+	state->cursor.lock_fd = -1;
 
-	state->reparse_display = 1;
-	state->current_file = _("none");
+	state->flag.reparse_display = 1;
+	state->status.current_input_file = -1;
 #ifdef HAVE_SPLICE
-	state->splice_failed_fd = -1;
+	state->transfer.splice_failed_fd = -1;
 #endif				/* HAVE_SPLICE */
-	state->display_visible = false;
+	state->display.display_visible = false;
 
 	/*
 	 * Get the current working directory, if possible, as a base for
 	 * showing relative filenames with --watchfd.
 	 */
-	if (NULL == getcwd(state->cwd, PV_SIZEOF_CWD - 1)) {
+	if (NULL == getcwd(state->status.cwd, PV_SIZEOF_CWD - 1)) {
 		/* failed - will always show full path */
-		state->cwd[0] = '\0';
+		state->status.cwd[0] = '\0';
 	}
-	if ('\0' == state->cwd[1]) {
+	if ('\0' == state->status.cwd[1]) {
 		/* CWD is root directory - always show full path */
-		state->cwd[0] = '\0';
+		state->status.cwd[0] = '\0';
 	}
-	state->cwd[PV_SIZEOF_CWD - 1] = '\0';
+	state->status.cwd[PV_SIZEOF_CWD - 1] = '\0';
 
 	return state;
 }
@@ -90,17 +106,46 @@ void pv_state_free(pvstate_t state)
 	if (0 == state)
 		return;
 
-	if (NULL != state->display_buffer)
-		free(state->display_buffer);
-	state->display_buffer = NULL;
+	if (NULL != state->status.program_name)
+		free(state->status.program_name);
+	state->status.program_name = NULL;
 
-	if (NULL != state->transfer_buffer)
-		free(state->transfer_buffer);
-	state->transfer_buffer = NULL;
+	if (NULL != state->display.display_buffer)
+		free(state->display.display_buffer);
+	state->display.display_buffer = NULL;
 
-	if (NULL != state->history)
-		free(state->history);
-	state->history = NULL;
+	if (NULL != state->control.name) {
+		free(state->control.name);
+		state->control.name = NULL;
+	}
+
+	if (NULL != state->control.format_string) {
+		free(state->control.format_string);
+		state->control.format_string = NULL;
+	}
+
+	/*@-keeptrans@ */
+	if (NULL != state->transfer.transfer_buffer)
+		free(state->transfer.transfer_buffer);
+	state->transfer.transfer_buffer = NULL;
+	/*@+keeptrans@ */
+	/* splint - explicitly freeing this structure, so free() here is OK. */
+
+	if (NULL != state->display.history)
+		free(state->display.history);
+	state->display.history = NULL;
+
+	if (NULL != state->files.filename) {
+		unsigned int file_idx;
+		for (file_idx = 0; file_idx < state->files.file_count; file_idx++) {
+			/*@-unqualifiedtrans@ */
+			free(state->files.filename[file_idx]);
+			/*@+unqualifiedtrans@ */
+			/* splint: see similar code below. */
+		}
+		free(state->files.filename);
+		state->files.filename = NULL;
+	}
 
 	free(state);
 
@@ -111,20 +156,16 @@ void pv_state_free(pvstate_t state)
 /*
  * Set the formatting string, given a set of old-style formatting options.
  */
-void pv_state_set_format(pvstate_t state, bool progress,
-			 bool timer, bool eta,
-			 bool fineta, bool rate,
-			 bool average_rate, bool bytes,
-			 bool bufpercent,
-			 unsigned int lastwritten, const char *name)
+void pv_state_set_format(pvstate_t state, bool progress, bool timer, bool eta, bool fineta, bool rate, bool average_rate, bool bytes, bool bufpercent, size_t lastwritten,	/*@null@ */
+			 const char *name)
 {
 #define PV_ADDFORMAT(x,y) if (x) { \
-		if (state->default_format[0] != '\0') \
-			pv_strlcat(state->default_format, " ", sizeof(state->default_format)); \
-		pv_strlcat(state->default_format, y, sizeof(state->default_format)); \
+		if (state->control.default_format[0] != '\0') \
+			(void) pv_strlcat(state->control.default_format, " ", sizeof(state->control.default_format)); \
+		(void) pv_strlcat(state->control.default_format, y, sizeof(state->control.default_format)); \
 	}
 
-	state->default_format[0] = '\0';
+	state->control.default_format[0] = '\0';
 	PV_ADDFORMAT(name, "%N");
 	PV_ADDFORMAT(bytes, "%b");
 	PV_ADDFORMAT(bufpercent, "%T");
@@ -135,162 +176,238 @@ void pv_state_set_format(pvstate_t state, bool progress,
 	PV_ADDFORMAT(eta, "%e");
 	PV_ADDFORMAT(fineta, "%I");
 	if (lastwritten > 0) {
-		char buf[16];
+		char buf[16];		 /* flawfinder: ignore */
 		memset(buf, 0, sizeof(buf));
-		(void) pv_snprintf(buf, sizeof(buf), "%%%uA", lastwritten);
+		(void) pv_snprintf(buf, sizeof(buf), "%%%uA", (unsigned int) lastwritten);
 		PV_ADDFORMAT(lastwritten > 0, buf);
+		/*
+		 * flawfinder rationale: large enough for string, zeroed
+		 * before use, only written to by pv_snprintf() with the
+		 * right buffer length.
+		 */
 	}
 
-	state->name = name;
-	state->reparse_display = 1;
+	if (NULL != state->control.name) {
+		free(state->control.name);
+		state->control.name = NULL;
+	}
+
+	if (NULL != name)
+		state->control.name = pv_strdup(name);
+
+	state->flag.reparse_display = 1;
 }
 
 
 void pv_state_force_set(pvstate_t state, bool val)
 {
-	state->force = val;
+	state->control.force = val;
 }
 
 void pv_state_cursor_set(pvstate_t state, bool val)
 {
-	state->cursor = val;
-};
+	state->control.cursor = val;
+}
 
 void pv_state_numeric_set(pvstate_t state, bool val)
 {
-	state->numeric = val;
-};
+	state->control.numeric = val;
+}
 
 void pv_state_wait_set(pvstate_t state, bool val)
 {
-	state->wait = val;
-};
+	state->control.wait = val;
+}
 
 void pv_state_delay_start_set(pvstate_t state, double val)
 {
-	state->delay_start = val;
-};
+	state->control.delay_start = val;
+}
 
 void pv_state_linemode_set(pvstate_t state, bool val)
 {
-	state->linemode = val;
-};
+	state->control.linemode = val;
+}
 
 void pv_state_bits_set(pvstate_t state, bool bits)
 {
-	state->bits = bits;
-};
+	state->control.bits = bits;
+}
 
-void pv_state_null_set(pvstate_t state, bool val)
+void pv_state_decimal_units_set(pvstate_t state, bool decimal_units)
 {
-	state->null = val;
-};
+	state->control.decimal_units = decimal_units;
+}
 
-void pv_state_no_op_set(pvstate_t state, bool val)
+void pv_state_null_terminated_lines_set(pvstate_t state, bool val)
 {
-	state->no_op = val;
-};
+	state->control.null_terminated_lines = val;
+}
+
+void pv_state_no_display_set(pvstate_t state, bool val)
+{
+	state->control.no_display = val;
+}
 
 void pv_state_skip_errors_set(pvstate_t state, unsigned int val)
 {
-	state->skip_errors = val;
-};
+	state->control.skip_errors = val;
+}
+
+void pv_state_error_skip_block_set(pvstate_t state, off_t val)
+{
+	state->control.error_skip_block = val;
+}
 
 void pv_state_stop_at_size_set(pvstate_t state, bool val)
 {
-	state->stop_at_size = val;
-};
+	state->control.stop_at_size = val;
+}
 
 void pv_state_sync_after_write_set(pvstate_t state, bool val)
 {
-	state->sync_after_write = val;
-};
+	state->control.sync_after_write = val;
+}
 
 void pv_state_direct_io_set(pvstate_t state, bool val)
 {
-	state->direct_io = val;
-	state->direct_io_changed = true;
-};
+	state->control.direct_io = val;
+	state->control.direct_io_changed = true;
+}
 
-void pv_state_rate_limit_set(pvstate_t state, unsigned long long val)
+void pv_state_discard_input_set(pvstate_t state, bool val)
 {
-	state->rate_limit = val;
-};
+	state->control.discard_input = val;
+}
 
-void pv_state_target_buffer_size_set(pvstate_t state,
-				     unsigned long long val)
+void pv_state_rate_limit_set(pvstate_t state, off_t val)
 {
-	state->target_buffer_size = val;
-};
+	state->control.rate_limit = val;
+}
+
+void pv_state_target_buffer_size_set(pvstate_t state, size_t val)
+{
+	state->control.target_buffer_size = val;
+}
 
 void pv_state_no_splice_set(pvstate_t state, bool val)
 {
-	state->no_splice = val;
-};
+	state->control.no_splice = val;
+}
 
-void pv_state_size_set(pvstate_t state, unsigned long long val)
+void pv_state_size_set(pvstate_t state, off_t val)
 {
-	state->size = val;
-};
+	state->control.size = val;
+}
 
 void pv_state_interval_set(pvstate_t state, double val)
 {
-	state->interval = val;
-};
+	state->control.interval = val;
+}
 
-void pv_state_width_set(pvstate_t state, unsigned int val)
+void pv_state_width_set(pvstate_t state, unsigned int val, bool was_set_manually)
 {
-	state->width = val;
-};
+	state->control.width = val;
+	state->control.width_set_manually = was_set_manually;
+}
 
-void pv_state_height_set(pvstate_t state, unsigned int val)
+void pv_state_height_set(pvstate_t state, unsigned int val, bool was_set_manually)
 {
-	state->height = val;
-};
+	state->control.height = val;
+	state->control.height_set_manually = was_set_manually;
+}
 
-void pv_state_name_set(pvstate_t state, const char *val)
+void pv_state_name_set(pvstate_t state, /*@null@ */ const char *val)
 {
-	state->name = val;
-};
+	if (NULL != state->control.name) {
+		free(state->control.name);
+		state->control.name = NULL;
+	}
+	if (NULL != val)
+		state->control.name = pv_strdup(val);
+}
 
-void pv_state_format_string_set(pvstate_t state, const char *val)
+void pv_state_format_string_set(pvstate_t state, /*@null@ */ const char *val)
 {
-	state->format_string = val;
-};
+	if (NULL != state->control.format_string) {
+		free(state->control.format_string);
+		state->control.format_string = NULL;
+	}
+	if (NULL != val)
+		state->control.format_string = pv_strdup(val);
+}
 
-void pv_state_watch_pid_set(pvstate_t state, unsigned int val)
+void pv_state_watch_pid_set(pvstate_t state, pid_t val)
 {
-	state->watch_pid = val;
-};
+	state->control.watch_pid = val;
+}
 
 void pv_state_watch_fd_set(pvstate_t state, int val)
 {
-	state->watch_fd = val;
-};
+	state->control.watch_fd = val;
+}
 
-void pv_state_average_rate_window_set(pvstate_t state, int val)
+void pv_state_average_rate_window_set(pvstate_t state, unsigned int val)
 {
 	if (val < 1)
 		val = 1;
+	state->control.average_rate_window = val;
 	if (val >= 20) {
-		state->history_len = val / 5 + 1;
-		state->history_interval = 5;
+		state->display.history_len = (size_t) (val / 5 + 1);
+		state->display.history_interval = 5;
 	} else {
-		state->history_len = val + 1;
-		state->history_interval = 1;
+		state->display.history_len = (size_t) (val + 1);
+		state->display.history_interval = 1;
 	}
 	pv_alloc_history(state);
-};
+}
 
 
 /*
  * Set the array of input files.
  */
-void pv_state_inputfiles(pvstate_t state, int input_file_count,
-			 const char **input_files)
+void pv_state_inputfiles(pvstate_t state, unsigned int input_file_count, const char **input_files)
 {
-	state->input_file_count = input_file_count;
-	state->input_files = input_files;
+	unsigned int file_idx;
+
+	if (NULL != state->files.filename) {
+		for (file_idx = 0; file_idx < state->files.file_count; file_idx++) {
+			/*@-unqualifiedtrans@ */
+			free(state->files.filename[file_idx]);
+			/*@+unqualifiedtrans@ */
+			/*
+			 * TODO: find a way to tell splint the array
+			 * contents are "only" and "null" as well as the
+			 * array itself.
+			 */
+		}
+		free(state->files.filename);
+		state->files.filename = NULL;
+		state->files.file_count = 0;
+	}
+	state->files.filename = calloc((size_t) (input_file_count + 1), sizeof(char *));
+	if (NULL == state->files.filename) {
+		/*@-mustfreefresh@ *//* see similar _() issue above */
+		fprintf(stderr, "%s: %s: %s\n", state->status.program_name, _("file list allocation failed"),
+			strerror(errno));
+		/*@+mustfreefresh@ */
+		return;
+	}
+	for (file_idx = 0; file_idx < input_file_count; file_idx++) {
+		/*@-nullstate@ */
+		state->files.filename[file_idx] = pv_strdup(input_files[file_idx]);
+		if (NULL == state->files.filename[file_idx]) {
+			/*@-mustfreefresh@ *//* see similar _() issue above */
+			fprintf(stderr, "%s: %s: %s\n", state->status.program_name,
+				_("file list allocation failed"), strerror(errno));
+			/*@+mustfreefresh@ */
+			return;
+		}
+	}
+	state->files.file_count = input_file_count;
 }
 
+/*@+nullstate@*/
+/* splint: see unqualifiedtrans note by free() above. */
+
 /* EOF */

src/pv/string.c

@@ -1,9 +1,9 @@
 /*
- * Functions for converting strings to numbers.
+ * Functions for portably managing strings.
  *
- * Copyright 2023 Andrew Wood
+ * Copyright 2023-2024 Andrew Wood
  *
- * Distributed under the Artistic License v2.0; see `doc/COPYING'.
+ * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */
 
 #include "config.h"
@@ -12,6 +12,7 @@
 #include <stdio.h>
 #include <stdarg.h>
 #include <string.h>
+#include <errno.h>
 
 
 /*
@@ -40,14 +41,21 @@ int pv_snprintf(char *str, size_t size, const char *format, ...)
 
 	va_start(ap, format);
 #ifdef HAVE_VSNPRINTF
-	ret = vsnprintf(str, size, format, ap);
+	ret = vsnprintf(str, size, format, ap);	/* flawfinder: ignore */
 #else				/* ! HAVE_VSNPRINTF */
-	ret = vsprintf(str, format, ap);
+	ret = vsprintf(str, format, ap);    /* flawfinder: ignore */
 #endif				/* HAVE_VSNPRINTF */
 	va_end(ap);
 
 	str[size - 1] = '\0';
 
+	/*
+	 * flawfinder rationale: this function replaces snprintf so
+	 * explicitly takes a non-constant format; also it explicitly
+	 * \0-terminates the output buffer, as flawfinder warns that some
+	 * sprintf() variants do not.
+	 */
+
 	return ret;
 }
 
@@ -70,7 +78,14 @@ int pv_snprintf(char *str, size_t size, const char *format, ...)
 size_t pv_strlcat(char *dst, const char *src, size_t dstsize)
 {
 #ifdef HAVE_STRLCAT
-	return strlcat(dst, src, dstsize);
+	size_t result;
+
+	result = strlcat(dst, src, dstsize);
+
+	if ((NULL != dst) && (dstsize > 0))
+		dst[dstsize - 1] = '\0';
+
+	return result;
 #else
 	size_t dstlen, srclen, available;
 
@@ -82,16 +97,87 @@ size_t pv_strlcat(char *dst, const char *src, size_t dstsize)
 		return 0;
 
 	dst[dstsize - 1] = '\0';
-	dstlen = strlen(dst);
-	srclen = strlen(src);
+	dstlen = strlen(dst);		    /* flawfinder: ignore */
+	srclen = strlen(src);		    /* flawfinder: ignore */
+
+	/*
+	 * flawfinder rationale: src must explicitly be \0 terminated, so
+	 * this is up to the caller; with dst, we enforce \0 termination
+	 * before calling strlen().
+	 */
 
 	available = dstsize - dstlen;
 	if (available > 1)
-		(void) pv_snprintf(dst + dstlen, available, "%.*s",
-				   available - 1, src);
+		(void) pv_snprintf(dst + dstlen, available, "%.*s", available - 1, src);
 
 	return dstlen + srclen;
 #endif
 }
 
+
+/*
+ * Allocate and return a duplicate of a \0-terminated string, ensuring that
+ * the duplicate is also \0-terminated.  Returns NULL on error.
+ */
+/*@null@ */
+/*@only@ */
+char *pv_strdup(const char *original)
+{
+	size_t length;
+	char *duplicate;
+
+	if (NULL == original) {
+		errno = EINVAL;
+		return NULL;
+	}
+
+	length = strlen(original);	    /* flawfinder: ignore */
+	/*
+	 * flawfinder rationale: the original string is explicitly required
+	 * to be \0 terminated.
+	 */
+	duplicate = calloc(1, 1 + length);
+	if (NULL == duplicate)
+		return NULL;
+
+	memcpy(duplicate, original, length);	/* flawfinder: ignore */
+	/*
+	 * flawfinder rationale: the buffer is explicitly allocated to be
+	 * large enough.
+	 */
+
+	duplicate[length] = '\0';
+
+	return duplicate;
+}
+
+/*
+ * Return a pointer to the last matching character in the buffer, or NULL if
+ * not found.
+ */
+/*@null@ */
+/*@temp@ */
+void *pv_memrchr(const void *buffer, int match, size_t length)
+{
+#ifdef HAVE_MEMRCHR
+	/*@-unrecog @ *//* splint doesn't know of memrchr() */
+	return memrchr(buffer, match, length);
+	/*@+unrecog @ */
+#else
+	unsigned char *ptr;
+
+	if (length < 1)
+		return NULL;
+
+	ptr = ((unsigned char *) buffer) + length - 1;
+	while (ptr >= (unsigned char *) buffer) {
+		if ((int) (ptr[0]) == match)
+			return (void *) ptr;
+		ptr--;
+	}
+
+	return NULL;
+#endif
+}
+
 /* EOF */

src/pv/watchpid.c

@@ -1,9 +1,9 @@
 /*
  * Functions for watching file descriptors in other processes.
  *
- * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023 Andrew Wood
+ * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2024 Andrew Wood
  *
- * Distributed under the Artistic License v2.0; see `doc/COPYING'.
+ * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */
 
 #include "config.h"
@@ -31,7 +31,16 @@
 #include <sys/proc_info.h>
 #endif
 
-int filesize(pvwatchfd_t info)
+/*@-type@*/
+/* splint has trouble with off_t and mode_t. */
+
+/*
+ * Set info->size to the size of the file info->file_fdpath points to,
+ * assuming that info->sb_fd has been populated by stat(), or to 0 if the
+ * file size could not be determined or the file was opened in write mode;
+ * returns false if the file was not a block device or regular file.
+ */
+static bool filesize(pvwatchfd_t info)
 {
 	if (S_ISBLK(info->sb_fd.st_mode)) {
 		int fd;
@@ -40,10 +49,25 @@ int filesize(pvwatchfd_t info)
 		 * Get the size of block devices by opening
 		 * them and seeking to the end.
 		 */
-		fd = open(info->file_fdpath, O_RDONLY);
+		fd = open(info->file_fdpath, O_RDONLY);	/* flawfinder: ignore */
+		/*
+		 * flawfinder: redirection check below; risk is minimal as
+		 * we are not actually reading any data here.
+		 */
 		if (fd >= 0) {
-			info->size = lseek(fd, 0, SEEK_END);
-			close(fd);
+			/*
+			 * TOCTOU mitigation: check it's still a block
+			 * device before trying to seek to the end. 
+			 * Otherwise treat it as unreadable and set the size
+			 * to 0.
+			 */
+			struct stat check_fd_sb;
+			memset(&check_fd_sb, 0, sizeof(check_fd_sb));
+			info->size = 0;
+			if (0 == fstat(fd, &check_fd_sb) && S_ISBLK(check_fd_sb.st_mode)) {
+				info->size = lseek(fd, 0, SEEK_END);
+			}
+			(void) close(fd);
 		} else {
 			info->size = 0;
 		}
@@ -52,14 +76,16 @@ int filesize(pvwatchfd_t info)
 			info->size = info->sb_fd.st_size;
 		}
 	} else {
-		return 4;
+		return false;
 	}
 
-	return 0;
+	return true;
 }
 
+/*@+type@*/
+
 #ifdef __APPLE__
-int pv_watchfd_info(pvstate_t state, pvwatchfd_t info, int automatic)
+int pv_watchfd_info(pvstate_t state, pvwatchfd_t info, bool automatic)
 {
 	struct vnode_fdinfowithpath vnodeInfo = { };
 
@@ -70,9 +96,7 @@ int pv_watchfd_info(pvstate_t state, pvwatchfd_t info, int automatic)
 
 	if (kill(info->watch_pid, 0) != 0) {
 		if (!automatic)
-			pv_error(state, "%s %u: %s",
-				 _("pid"),
-				 info->watch_pid, strerror(errno));
+			pv_error(state, "%s %u: %s", _("pid"), info->watch_pid, strerror(errno));
 		return 1;
 	}
 
@@ -82,14 +106,11 @@ int pv_watchfd_info(pvstate_t state, pvwatchfd_t info, int automatic)
 				  PROC_PIDFDVNODEPATHINFO_SIZE);
 	if (size != PROC_PIDFDVNODEPATHINFO_SIZE) {
 		pv_error(state, "%s %u: %s %d: %s",
-			 _("pid"),
-			 info->watch_pid,
-			 _("fd"), info->watch_fd, strerror(errno));
+			 _("pid"), info->watch_pid, _("fd"), info->watch_fd, strerror(errno));
 		return 3;
 	}
 
-	strlcpy(info->file_fdpath, vnodeInfo.pvip.vip_path,
-		PV_SIZEOF_FILE_FDPATH);
+	strlcpy(info->file_fdpath, vnodeInfo.pvip.vip_path, PV_SIZEOF_FILE_FDPATH);
 
 	info->size = 0;
 
@@ -97,22 +118,16 @@ int pv_watchfd_info(pvstate_t state, pvwatchfd_t info, int automatic)
 		if (!automatic)
 			pv_error(state, "%s %u: %s %d: %s: %s",
 				 _("pid"),
-				 info->watch_pid,
-				 _("fd"),
-				 info->watch_fd, info->file_fdpath,
-				 strerror(errno));
+				 info->watch_pid, _("fd"), info->watch_fd, info->file_fdpath, strerror(errno));
 		return 3;
 	}
 
-	if (filesize(info) != 0) {
+	if (!filesize(info)) {
 		if (!automatic)
 			pv_error(state, "%s %u: %s %d: %s: %s",
 				 _("pid"),
 				 info->watch_pid,
-				 _("fd"),
-				 info->watch_fd,
-				 info->file_fdpath,
-				 _("not a regular file or block device"));
+				 _("fd"), info->watch_fd, info->file_fdpath, _("not a regular file or block device"));
 		return 4;
 	}
 
@@ -134,11 +149,11 @@ int pv_watchfd_info(pvstate_t state, pvwatchfd_t info, int automatic)
  *   3 - stat or lstat on /proc/pid/fd/N failed
  *   4 - file descriptor is not opened on a regular file
  *
- * If "automatic" is nonzero, then this fd was picked automatically, and so
- * if it's not readable or not a regular file, no error is displayed and the
+ * If "automatic" is true, then this fd was picked automatically, and so if
+ * it's not readable or not a regular file, no error is displayed and the
  * function just returns an error code.
  */
-int pv_watchfd_info(pvstate_t state, pvwatchfd_t info, int automatic)
+int pv_watchfd_info(pvstate_t state, pvwatchfd_t info, bool automatic)
 {
 	if (NULL == state)
 		return -1;
@@ -147,27 +162,26 @@ int pv_watchfd_info(pvstate_t state, pvwatchfd_t info, int automatic)
 
 	if (kill(info->watch_pid, 0) != 0) {
 		if (!automatic)
-			pv_error(state, "%s %u: %s",
-				 _("pid"),
-				 info->watch_pid, strerror(errno));
+			pv_error(state, "%s %u: %s", _("pid"), info->watch_pid, strerror(errno));
 		return 1;
 	}
 	(void) pv_snprintf(info->file_fdinfo, PV_SIZEOF_FILE_FDINFO,
-			   "/proc/%u/fdinfo/%d", info->watch_pid,
-			   info->watch_fd);
-	(void) pv_snprintf(info->file_fd, PV_SIZEOF_FILE_FD,
-			   "/proc/%u/fd/%d", info->watch_pid,
-			   info->watch_fd);
+			   "/proc/%u/fdinfo/%d", info->watch_pid, info->watch_fd);
+	(void) pv_snprintf(info->file_fd, PV_SIZEOF_FILE_FD, "/proc/%u/fd/%d", info->watch_pid, info->watch_fd);
 
 	memset(info->file_fdpath, 0, PV_SIZEOF_FILE_FDPATH);
-	if (readlink
-	    (info->file_fd, info->file_fdpath,
-	     PV_SIZEOF_FILE_FDPATH - 1) < 0) {
+	if (readlink(info->file_fd, info->file_fdpath, PV_SIZEOF_FILE_FDPATH - 1) < 0) {	/* flawfinder: ignore */
+		/*
+		 * flawfinder: memset() has put \0 at the end already, and
+		 * we tell readlink() to use 1 byte less than the buffer
+		 * length, so \0 termination is assured.  There is no
+		 * mitigation for the risk of the link changing while we
+		 * read it, but we are only reading from the destination,
+		 * and then only if it's a block device - see filesize().
+		 */
 		if (!automatic)
 			pv_error(state, "%s %u: %s %d: %s",
-				 _("pid"),
-				 info->watch_pid,
-				 _("fd"), info->watch_fd, strerror(errno));
+				 _("pid"), info->watch_pid, _("fd"), info->watch_fd, strerror(errno));
 		return 2;
 	}
 
@@ -176,26 +190,19 @@ int pv_watchfd_info(pvstate_t state, pvwatchfd_t info, int automatic)
 		if (!automatic)
 			pv_error(state, "%s %u: %s %d: %s: %s",
 				 _("pid"),
-				 info->watch_pid,
-				 _("fd"),
-				 info->watch_fd, info->file_fdpath,
-				 strerror(errno));
+				 info->watch_pid, _("fd"), info->watch_fd, info->file_fdpath, strerror(errno));
 		return 3;
 	}
 
 	info->size = 0;
 
-	int ret = filesize(info);
-	if (ret != 0) {
+	if (!filesize(info)) {
 		if (!automatic)
 			pv_error(state, "%s %u: %s %d: %s: %s",
 				 _("pid"),
 				 info->watch_pid,
-				 _("fd"),
-				 info->watch_fd,
-				 info->file_fdpath,
-				 _("not a regular file or block device"));
-		return ret;
+				 _("fd"), info->watch_fd, info->file_fdpath, _("not a regular file or block device"));
+		return 4;
 	}
 
 	return 0;
@@ -203,32 +210,35 @@ int pv_watchfd_info(pvstate_t state, pvwatchfd_t info, int automatic)
 #endif
 
 #ifdef __APPLE__
-int pv_watchfd_changed(pvwatchfd_t info)
+bool pv_watchfd_changed(pvwatchfd_t info)
 {
-	return 1;
+	return true;
 }
 #else
 /*
- * Return nonzero if the given file descriptor has changed in some way since
- * we started looking at it (i.e.  changed destination or permissions).
+ * Return true if the given file descriptor has changed in some way since
+ * we started looking at it (i.e. changed destination or permissions).
  */
-int pv_watchfd_changed(pvwatchfd_t info)
+bool pv_watchfd_changed(pvwatchfd_t info)
 {
 	struct stat sb_fd, sb_fd_link;
 
+	memset(&sb_fd, 0, sizeof(sb_fd));
+	memset(&sb_fd_link, 0, sizeof(sb_fd_link));
+
 	if ((0 == stat(info->file_fd, &sb_fd))
 	    && (0 == lstat(info->file_fd, &sb_fd_link))) {
 		if ((sb_fd.st_dev != info->sb_fd.st_dev)
 		    || (sb_fd.st_ino != info->sb_fd.st_ino)
 		    || (sb_fd_link.st_mode != info->sb_fd_link.st_mode)
 		    ) {
-			return 1;
+			return true;
 		}
 	} else {
-		return 1;
+		return true;
 	}
 
-	return 0;
+	return false;
 }
 #endif
 
@@ -237,9 +247,9 @@ int pv_watchfd_changed(pvwatchfd_t info)
  * Return the current file position of the given file descriptor, or -1 if
  * the fd has closed or has changed in some way.
  */
-long long pv_watchfd_position(pvwatchfd_t info)
+off_t pv_watchfd_position(pvwatchfd_t info)
 {
-	long long position;
+	off_t position;
 #ifdef __APPLE__
 	struct vnode_fdinfowithpath vnodeInfo = { };
 	int32_t proc_fd = (int32_t) info->watch_fd;
@@ -251,20 +261,24 @@ long long pv_watchfd_position(pvwatchfd_t info)
 		return -1;
 	}
 
-	position = (long long) vnodeInfo.pfi.fi_offset;
+	position = (off_t) vnodeInfo.pfi.fi_offset;
 #else
+	long long pos_long;
 	FILE *fptr;
 
 	if (pv_watchfd_changed(info))
 		return -1;
 
-	fptr = fopen(info->file_fdinfo, "r");
+	fptr = fopen(info->file_fdinfo, "r");	/* flawfinder: ignore */
+	/* flawfinder: trusted location (/proc). */
 	if (NULL == fptr)
 		return -1;
+	pos_long = -1;
 	position = -1;
-	if (1 != fscanf(fptr, "pos: %llu", &position))
-		position = -1;
-	fclose(fptr);
+	if (1 == fscanf(fptr, "pos: %lld", &pos_long)) {
+		position = (off_t) pos_long;
+	}
+	(void) fclose(fptr);
 #endif
 
 	return position;
@@ -272,13 +286,11 @@ long long pv_watchfd_position(pvwatchfd_t info)
 
 
 #ifdef __APPLE__
-static int pidfds(pvstate_t state, unsigned int pid,
-		  struct proc_fdinfo **fds, int *count)
+static int pidfds(pvstate_t state, unsigned int pid, struct proc_fdinfo **fds, int *count)
 {
 	int size_needed = proc_pidinfo(pid, PROC_PIDLISTFDS, 0, 0, 0);
 	if (size_needed == -1) {
-		pv_error(state, "%s: unable to list pid fds: %s", _("pid"),
-			 strerror(errno));
+		pv_error(state, "%s: unable to list pid fds: %s", _("pid"), strerror(errno));
 		return -1;
 	}
 
@@ -286,8 +298,7 @@ static int pidfds(pvstate_t state, unsigned int pid,
 
 	*fds = (struct proc_fdinfo *) malloc(size_needed);
 	if (*fds == NULL) {
-		pv_error(state, "%s: alloc failed: %s", _("pid"),
-			 strerror(errno));
+		pv_error(state, "%s: alloc failed: %s", _("pid"), strerror(errno));
 		return -1;
 	}
 
@@ -297,6 +308,54 @@ static int pidfds(pvstate_t state, unsigned int pid,
 }
 #endif
 
+/*@-compdestroy @ */
+/*@-usereleased @ */
+/*@-compdef @ */
+
+/*
+ * splint: extending or creating entries and then zeroing them makes splint
+ * believe that data previously there may refer to pointers that are now
+ * lost - but these are newly added array entries so there is no loss.
+ */
+
+/*
+ * Extend the info array by one, returning false on error.
+ */
+static bool extend_info_array(int *array_length_ptr, pvwatchfd_t * info_array_ptr)
+{
+	int array_length = 0;
+	struct pvwatchfd_s *info_array = NULL;
+	struct pvwatchfd_s *new_info_array;
+
+	array_length = *array_length_ptr;
+	info_array = *info_array_ptr;
+
+	array_length++;
+
+	if (NULL == info_array) {
+		new_info_array = malloc(array_length * sizeof(*info_array));
+		if (NULL != new_info_array)
+			memset(new_info_array, 0, array_length * sizeof(*info_array));
+	} else {
+		new_info_array = realloc(info_array, array_length * sizeof(*info_array));
+		if (NULL != new_info_array)
+			memset(&(new_info_array[array_length - 1]), 0, sizeof(*info_array));
+	}
+
+	if (NULL == new_info_array) {
+		return false;
+	}
+
+	*info_array_ptr = new_info_array;
+	*array_length_ptr = array_length;
+	return true;
+}
+
+/*@+compdestroy @ */
+/*@+usereleased @ */
+/*@+compdef @ */
+
+
 /*
  * Scan the given process and update the arrays with any new file
  * descriptors.
@@ -304,15 +363,11 @@ static int pidfds(pvstate_t state, unsigned int pid,
  * Returns 0 on success, 1 if the process no longer exists or could not be
  * read, or 2 for a memory allocation error.
  */
-int pv_watchpid_scanfds(pvstate_t state, pvstate_t pristine,
-			unsigned int watch_pid, int *array_length_ptr,
-			pvwatchfd_t * info_array_ptr,
-			pvstate_t * state_array_ptr, int *fd_to_idx)
+int pv_watchpid_scanfds(pvstate_t state,
+			pid_t watch_pid, int *array_length_ptr, pvwatchfd_t * info_array_ptr, int *fd_to_idx)
 {
-	char fd_dir[512] = { 0, };
 	int array_length = 0;
 	struct pvwatchfd_s *info_array = NULL;
-	struct pvstate_s *state_array = NULL;
 
 #ifdef __APPLE__
 	struct proc_fdinfo *fd_infos = NULL;
@@ -323,11 +378,12 @@ int pv_watchpid_scanfds(pvstate_t state, pvstate_t pristine,
 		return -1;
 	}
 #else
+	char fd_dir[512];		 /* flawfinder: ignore - zeroed, bounded with pv_snprintf(). */
 	DIR *dptr;
 	struct dirent *d;
 
-	(void) pv_snprintf(fd_dir, sizeof(fd_dir), "/proc/%u/fd",
-			   watch_pid);
+	memset(fd_dir, 0, sizeof(fd_dir));
+	(void) pv_snprintf(fd_dir, sizeof(fd_dir), "/proc/%u/fd", watch_pid);
 
 	dptr = opendir(fd_dir);
 	if (NULL == dptr)
@@ -336,7 +392,6 @@ int pv_watchpid_scanfds(pvstate_t state, pvstate_t pristine,
 
 	array_length = *array_length_ptr;
 	info_array = *info_array_ptr;
-	state_array = *state_array_ptr;
 
 #ifdef __APPLE__
 	if (fd_infos_count < 1) {
@@ -348,7 +403,8 @@ int pv_watchpid_scanfds(pvstate_t state, pvstate_t pristine,
 	while ((d = readdir(dptr)) != NULL) {
 #endif
 		int fd, check_idx, use_idx, rc;
-		long long position_now;
+		off_t position_now;
+		const char *use_format_string;
 
 		fd = -1;
 #ifdef __APPLE__
@@ -379,54 +435,14 @@ int pv_watchpid_scanfds(pvstate_t state, pvstate_t pristine,
 		}
 
 		/*
-		 * If there's no empty slot, extend the arrays.
+		 * If there's no empty slot, extend the array.
 		 */
 		if (use_idx < 0) {
-			struct pvwatchfd_s *new_info_array;
-			struct pvstate_s *new_state_array;
-
-			array_length++;
+			if (!extend_info_array(array_length_ptr, info_array_ptr))
+				return 2;
+			array_length = *array_length_ptr;
+			info_array = *info_array_ptr;
 			use_idx = array_length - 1;
-
-			if (NULL == info_array) {
-				new_info_array =
-				    malloc(array_length *
-					   sizeof(*info_array));
-			} else {
-				new_info_array =
-				    realloc(info_array,
-					    array_length *
-					    sizeof(*info_array));
-			}
-			if (NULL == new_info_array)
-				return 2;
-			info_array = new_info_array;
-			*info_array_ptr = info_array;
-			info_array[use_idx].watch_pid = 0;
-
-			if (NULL == state_array) {
-				new_state_array =
-				    malloc(array_length *
-					   sizeof(*state_array));
-			} else {
-				new_state_array =
-				    realloc(state_array,
-					    array_length *
-					    sizeof(*state_array));
-			}
-			if (NULL == new_state_array)
-				return 2;
-			state_array = new_state_array;
-			*state_array_ptr = state_array;
-
-			*array_length_ptr = array_length;
-
-			for (check_idx = 0; check_idx < array_length;
-			     check_idx++) {
-				state_array[check_idx].name =
-				    info_array[check_idx].display_name;
-				state_array[check_idx].reparse_display = 1;
-			}
 		}
 
 		debug("%s: %d => index %d", "found new fd", fd, use_idx);
@@ -434,28 +450,77 @@ int pv_watchpid_scanfds(pvstate_t state, pvstate_t pristine,
 		/*
 		 * Initialise the details of this new entry.
 		 */
-		memcpy(&(state_array[use_idx]), pristine,
-		       sizeof(*pristine));
-		memset(&(info_array[use_idx]), 0,
-		       sizeof(info_array[use_idx]));
+		memset(&(info_array[use_idx]), 0, sizeof(info_array[use_idx]));
 
 		info_array[use_idx].watch_pid = watch_pid;
 		info_array[use_idx].watch_fd = fd;
+
+		/* Allocate new display state. */
+		/*@-mustfreeonly@ *//* splint - this is not a leak, this is a new entry. */
+		info_array[use_idx].state = pv_state_alloc(state->status.program_name);
+		/*@+mustfreeonly@ */
+		if (NULL == info_array[use_idx].state)
+			return 2;
+
+		/* Copy the main status.cwd value to the new state. */
+		memcpy(&(info_array[use_idx].state->status.cwd), &(state->status.cwd), sizeof(state->status.cwd));	/* flawfinder: ignore */
+		/* flawfinder: bounded to destination object size. */
+
+		/*
+		 * Copy over all the control values, blanking out the
+		 * dynamically allocated strings, and setting the default
+		 * format (fixed buffer) to the required format string
+		 * instead of allocating a new dynamic format string for the
+		 * copy (so there's less dynamic allocation going on).
+		 */
+		memcpy(&(info_array[use_idx].state->control), &(state->control), sizeof(state->control));	/* flawfinder: ignore */
+		/* flawfinder: bounded to destination object size. */
+		/*@-mustfreeonly@ *//* splint - this is not a leak, this is a new entry. */
+		info_array[use_idx].state->control.name = NULL;
+		info_array[use_idx].state->control.format_string = NULL;
+		/*@+mustfreeonly@ */
+		info_array[use_idx].state->control.default_format[0] = '\0';
+		use_format_string =
+		    NULL != state->control.format_string ? state->control.format_string : state->control.default_format;
+		if (NULL != use_format_string)
+			(void) pv_snprintf(info_array[use_idx].state->control.default_format, PV_SIZEOF_DEFAULT_FORMAT,
+					   "%.510s", use_format_string);
+
+		/*
+		 * Copy over all the display values, blanking out the
+		 * dynamically allocated parts as above; then set the
+		 * average rate window so that a new history buffer is
+		 * allocated for this state.
+		 */
+		memcpy(&(info_array[use_idx].state->display), &(state->display), sizeof(state->display));	/* flawfinder: ignore */
+		/* flawfinder: bounded to destination object size. */
+		/*@-mustfreeonly@ *//* splint - this is not a leak, this is a new entry. */
+		info_array[use_idx].state->display.display_buffer = NULL;
+		info_array[use_idx].state->display.display_buffer_size = 0;
+		info_array[use_idx].state->display.history = NULL;
+		info_array[use_idx].state->display.history_len = 0;
+		/*@+mustfreeonly@ */
+		pv_state_average_rate_window_set(info_array[use_idx].state, state->control.average_rate_window);
+
 #ifdef __APPLE__
 		if (fd_infos[i].proc_fdtype != PROX_FDTYPE_VNODE) {
 			continue;
 		}
 #endif
-		rc = pv_watchfd_info(state, &(info_array[use_idx]), 1);
+		/* Retrieve the details of this file descriptor. */
+		rc = pv_watchfd_info(state, &(info_array[use_idx]), true);
 
 		/*
 		 * Lookup failed - mark this slot as being free for re-use.
 		 */
 		if ((rc != 0) && (rc != 4)) {
+			debug("%s %d: %s: %d", "fd", fd, "lookup failed - marking slot for re-use", use_idx);
 			info_array[use_idx].watch_pid = 0;
-			debug("%s %d: %s: %d", "fd", fd,
-			      "lookup failed - marking slot for re-use",
-			      use_idx);
+			if (NULL != info_array[use_idx].state)
+				pv_state_free(info_array[use_idx].state);
+			/*@-mustfreeonly@ *//* not a leak - we've just free()d it. */
+			info_array[use_idx].state = NULL;
+			/*@+mustfreeonly@ */
 			continue;
 		}
 
@@ -466,40 +531,60 @@ int pv_watchpid_scanfds(pvstate_t state, pvstate_t pristine,
 		 * show it.
 		 */
 		if (rc != 0) {
-			debug("%s %d: %s", "fd", fd,
-			      "marking as not displayable");
+			debug("%s %d: %s", "fd", fd, "marking as not displayable");
 			info_array[use_idx].watch_fd = -1;
 		}
 
-		state_array[use_idx].size = info_array[use_idx].size;
-		if (state_array[use_idx].size < 1) {
-			char *fmt;
-			while (NULL !=
-			       (fmt =
-				strstr(state_array[use_idx].default_format,
-				       "%e"))) {
-				debug("%s", "zero size - removing ETA");
-				/* strlen-1 here to include trailing NUL */
-				memmove(fmt, fmt + 2, strlen(fmt) - 1);
-				state_array[use_idx].reparse_display = 1;
-			}
+		/* NULL check on the state - skip if not usable. */
+		if (NULL == info_array[use_idx].state) {
+			debug("%s %d: %s", "fd", fd, "state is NULL - marking as not displayable");
+			info_array[use_idx].watch_fd = -1;
+			continue;
 		}
 
-		state_array[use_idx].name =
-		    info_array[use_idx].display_name;
+		/*
+		 * Set the displayed size appropriately; if the size is 0,
+		 * or not known, remove %e and %I from the state's default
+		 * format string so that neither estimated time remaining
+		 * nor estimated time of completion are displayed.
+		 */
+		info_array[use_idx].state->control.size = info_array[use_idx].size;
+		if (info_array[use_idx].state->control.size < 1) {
+			char *fmt;
+			while (NULL != (fmt = strstr(info_array[use_idx].state->control.default_format, "%e"))) {
+				debug("%s", "zero size - removing estimated time remaining");
+				/* strlen-1 here to include trailing \0 */
+				memmove(fmt, fmt + 2, strlen(fmt) - 1);	/* flawfinder: ignore */
+				info_array[use_idx].state->flag.reparse_display = 1;
+			}
+			while (NULL != (fmt = strstr(info_array[use_idx].state->control.default_format, "%I"))) {
+				debug("%s", "zero size - removing estimated completion time");
+				/* strlen-1 here to include trailing \0 */
+				memmove(fmt, fmt + 2, strlen(fmt) - 1);	/* flawfinder: ignore */
+				info_array[use_idx].state->flag.reparse_display = 1;
+			}
+			/* flawfinder: default_format is always \0-terminated. */
+		}
 
+		/* Set the info display_name appropriately. */
 		pv_watchpid_setname(state, &(info_array[use_idx]));
 
-		state_array[use_idx].reparse_display = 1;
+		/* Carry the display_name through to the display state, and reparse. */
+		pv_state_name_set(info_array[use_idx].state, info_array[use_idx].display_name);
+		info_array[use_idx].state->flag.reparse_display = 1;
 
-		gettimeofday(&(info_array[use_idx].start_time), NULL);
+		pv_elapsedtime_read(&(info_array[use_idx].start_time));
 
-		state_array[use_idx].initial_offset = 0;
+		/*
+		 * Set the starting position (and initial offset, for the
+		 * display), if known, so that ETA and so on are calculated
+		 * correctly.
+		 */
+		info_array[use_idx].state->display.initial_offset = 0;
 		info_array[use_idx].position = 0;
-
 		position_now = pv_watchfd_position(&(info_array[use_idx]));
 		if (position_now >= 0) {
-			state_array[use_idx].initial_offset = position_now;
+			info_array[use_idx].state->display.initial_offset = position_now;
 			info_array[use_idx].position = position_now;
 		}
 	}
@@ -508,7 +593,7 @@ int pv_watchpid_scanfds(pvstate_t state, pvstate_t pristine,
 #ifdef __APPLE__
 	free(fd_infos);
 #else
-	closedir(dptr);
+	(void) closedir(dptr);
 #endif
 
 	return 0;
@@ -524,27 +609,26 @@ int pv_watchpid_scanfds(pvstate_t state, pvstate_t pristine,
  */
 void pv_watchpid_setname(pvstate_t state, pvwatchfd_t info)
 {
-	int path_length, cwd_length, max_display_length;
+	size_t path_length, cwd_length;
+	int max_display_length;
 	char *file_fdpath = info->file_fdpath;
 
 	memset(info->display_name, 0, PV_SIZEOF_DISPLAY_NAME);
 
-	path_length = strlen(info->file_fdpath);
-	cwd_length = strlen(state->cwd);
+	path_length = strlen(info->file_fdpath);	/* flawfinder: ignore */
+	cwd_length = strlen(state->status.cwd);	/* flawfinder: ignore */
+	/* flawfinder: both strings are always \0 terminated. */
 	if (cwd_length > 0 && path_length > cwd_length) {
-		if (0 ==
-		    strncmp(info->file_fdpath, state->cwd, cwd_length)) {
+		if (0 == strncmp(info->file_fdpath, state->status.cwd, cwd_length)) {
 			file_fdpath += cwd_length + 1;
 			path_length -= cwd_length + 1;
 		}
 	}
 
-	max_display_length = (state->width / 2) - 6;
-	if (max_display_length >= path_length) {
+	max_display_length = (int) (state->control.width / 2) - 6;
+	if (max_display_length >= (int) path_length) {
 		(void) pv_snprintf(info->display_name,
-				   PV_SIZEOF_DISPLAY_NAME,
-				   "%4d:%.498s", info->watch_fd,
-				   file_fdpath);
+				   PV_SIZEOF_DISPLAY_NAME, "%4d:%.498s", info->watch_fd, file_fdpath);
 	} else {
 		int prefix_length, suffix_length;
 
@@ -555,13 +639,10 @@ void pv_watchpid_setname(pvstate_t state, pvwatchfd_t info)
 				   PV_SIZEOF_DISPLAY_NAME,
 				   "%4d:%.*s...%.*s",
 				   info->watch_fd, prefix_length,
-				   file_fdpath, suffix_length,
-				   file_fdpath + path_length -
-				   suffix_length);
+				   file_fdpath, suffix_length, file_fdpath + path_length - suffix_length);
 	}
 
-	debug("%s: %d: [%s]", "set name for fd", info->watch_fd,
-	      info->display_name);
+	debug("%s: %d: [%s]", "set name for fd", info->watch_fd, info->display_name);
 }
 
 /* EOF */

tests/Bug_-_Install_all_files.test

@@ -0,0 +1,43 @@
+#!/bin/sh
+#
+# Test that "make install" installs the expected minimum set of files.
+
+# Dummy assignments for "shellcheck".
+testSubject="${testSubject:-false}"; workFile1="${workFile1:-.tmp1}"
+
+makeDir="${testSubject%/*}"
+if ! test -d "${makeDir}"; then
+	echo "could not find the directory to run \`make' in"
+	exit 77
+fi
+
+makeCommand=$(command -v gmake 2>/dev/null)
+test -z "${makeCommand}" && makeCommand="make"
+
+testInstallDir=$(mktemp -d)
+if ! test -n "${testInstallDir}"; then
+	echo "failed to create temporary installation directory"
+	exit 77
+fi
+
+export DESTDIR="${testInstallDir}"
+if ! ${makeCommand} -C "${makeDir}" install DESTDIR="${testInstallDir}" >"${workFile1}" 2>&1; then
+	echo "\`make install' exited $?"
+	rm -rf "${testInstallDir}"
+	exit 1
+fi
+
+exitStatus=0
+if ! find "${testInstallDir}" -type f -name "pv.1*" | grep -Fq "pv.1"; then
+	echo "installation of man page failed"
+	exitStatus=1
+fi
+if ! find "${testInstallDir}" -type f -name "pv*" | grep -Fv "pv.1" | grep -Fq "pv"; then
+	echo "installation of binary failed"
+	exitStatus=1
+fi
+
+rm -rf "${testInstallDir}"
+exit "${exitStatus}"
+
+# EOF

tests/General_-_--pidfile.test

@@ -1,6 +1,7 @@
 #!/bin/sh
 #
-# Check that process ID can be written to a file as described in the manual.
+# Check that the process ID can be written to a file as described in the
+# manual.
 
 # Dummy assignments for "shellcheck".
 testSubject="${testSubject:-false}"; workFile1="${workFile1:-.tmp1}"
@@ -8,7 +9,7 @@ testSubject="${testSubject:-false}"; workFile1="${workFile1:-.tmp1}"
 # Check we can run "kill -s 0".
 if ! kill -s 0 $$ >/dev/null 2>&1; then
 	echo "cannot check process existence with \`kill -s 0'"
-	exit 2
+	exit 77
 fi
 
 dd if=/dev/zero bs=150 count=1 2>/dev/null \

tests/General_-_--size_argument_handling.test

@@ -0,0 +1,24 @@
+#!/bin/sh
+#
+# Check that size arguments are processed correctly.
+
+# Dummy assignments for "shellcheck".
+testSubject="${testSubject:-false}"
+
+# Pass size argument $1 and check that the last reported number is $2.
+checkSizeArgument () {
+	reportedCount=$("${testSubject}" -XfnbSs "$1" /dev/zero 2>&1 | sed -n '$p' | tr -dc '0-9')
+	if ! test "${reportedCount}" = "$2"; then
+		echo "passed size argument $1, expected count of $2, but got ${reportedCount}"
+		exit 1
+	fi
+}
+
+checkSizeArgument 10000 10000
+checkSizeArgument 1k 1024
+checkSizeArgument 1M 1048576
+checkSizeArgument 8G 8589934592
+
+exit 0
+
+# EOF

tests/Integrity_-_Large_file_support.test

@@ -11,7 +11,7 @@ workFile1FreeKiB=$(df -kP "${workFile1Dir}" | sed -n '$p' | awk '{print $(NF-2)}
 test -n "${workFile1FreeKiB}" || workFile1FreeKiB=0
 if ! test "${workFile1FreeKiB}" -gt 3300000 2>/dev/null; then
 	echo "test requires at least 3GB free on ${workFile1Dir}"
-	exit 2
+	exit 77
 fi
 
 # Generate a 3GB sparse file - we don't really need 3GB of free space unless
@@ -19,7 +19,7 @@ fi
 true > "${workFile1}"
 if ! dd if="/dev/zero" of="${workFile1}" count=1 bs=1048576 seek=3072 2>/dev/null; then
 	echo "failed to create 3GB specimen file"
-	exit 2
+	exit 77
 fi
 
 # NB the "stat" command is not portable - BSD stat(1) has a different syntax
@@ -29,7 +29,7 @@ fileSize=$(ls -nl "${workFile1}" 2>/dev/null | awk '{print $5}')
 test -n "${fileSize}" || fileSize=0
 if ! test "${fileSize}" -gt 3000000; then
 	echo "failed to validate specimen file size"
-	exit 2
+	exit 77
 fi
 
 # Transfer the file, and count how many bytes came through.
@@ -42,7 +42,7 @@ if ! test "${bytesTransferred}" -eq "${fileSize}"; then
 	exit 1
 fi
 if ! test "${bytesReported}" -eq "${fileSize}"; then
-	echo "counted ${bytesTransferred} of ${fileSize} bytes"
+	echo "counted ${bytesReported} of ${fileSize} bytes"
 	exit 1
 fi
 
@@ -56,7 +56,7 @@ if ! test "${bytesTransferred}" -eq "${fileSize}"; then
 	exit 1
 fi
 if ! test "${bytesReported}" -eq "${fileSize}"; then
-	echo "stdin - counted ${bytesTransferred} of ${fileSize} bytes"
+	echo "stdin - counted ${bytesReported} of ${fileSize} bytes"
 	exit 1
 fi
 

tests/Integrity_-_On_output_pipe_close.test

@@ -19,7 +19,7 @@ done
 # Check that it really is GNU head, and skip the test if not.
 if ! echo | "${HEAD}" -c 10 >/dev/null 2>&1; then
 	echo "GNU \`head' is required"
-	exit 2
+	exit 77
 fi
 
 # Don't use dd. See http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=324308

tests/Integrity_-_When_adjusted_remotely.test

@@ -6,10 +6,10 @@
 # Dummy assignments for "shellcheck".
 testSubject="${testSubject:-false}"; workFile1="${workFile1:-.tmp1}"; workFile2="${workFile2:-.tmp2}"; workFile3="${workFile3:-.tmp3}"; workFile4="${workFile4:-.tmp4}"
 
-# Do nothing if IPC is not supported.
+# Do nothing if it is not supported.
 if ! "${testSubject}" -h 2>/dev/null | grep -Eq "^  -R,"; then
-	echo "IPC is not supported on this platform"
-	exit 2
+	echo "Not supported on this platform"
+	exit 77
 fi
 
 # Generate some data.

tests/Memory_safety_-_Basic.test

@@ -0,0 +1,38 @@
+#!/bin/sh
+#
+# Run valgrind's memory checker against a process using various different
+# transfer options.
+
+# Dummy assignments for "shellcheck".
+sourcePath="${sourcePath:-.}"; testSubject="${testSubject:-false}"; workFile1="${workFile1:-.tmp1}"; workFile2="${workFile2:-.tmp2}"; workFile3="${workFile3:-.tmp3}"; workFile4="${workFile4:-.tmp4}"
+
+# Load the valgrind function.
+. "${sourcePath}/tests/run-valgrind.sh"
+
+# Plain, no options.
+{ echo "testing" | runWithValgrind >/dev/null 2>&1; } 4>&1 || exit 1
+
+# With --force.
+{ echo "testing" | runWithValgrind -f >/dev/null 2>&1; } 4>&1 || exit 1
+
+# Check "--average-rate".
+(dd if=/dev/zero bs=100 count=1 2>/dev/null;
+ sleep 1;
+ dd if=/dev/zero bs=110 count=1 2>/dev/null;
+ sleep 1;
+) | { runWithValgrind -f -i 0.5 -a >/dev/null 2>"${workFile1}"; } 4>&1 || exit 1
+
+# Check "--buffer-size" and "--buffer-percent".
+{ \
+  ( dd if=/dev/zero bs=1024 count=1024; sleep 2; ) 2>/dev/null \
+  | runWithValgrind -f -T -i 0.5 -B 1024 2>"${workFile1}" \
+  | (sleep 1; dd bs=1024 count=512; sleep 1; cat; ) >/dev/null 2>&1; \
+} 4>&1 || exit 1
+
+# Check "--numeric" "--bytes" "--line-mode".
+seq -w 3 1 100 \
+| { runWithValgrind -bnl -i 0.2 -f -L 100 2>"${workFile1}" > "${workFile2}"; } 4>&1 || exit 1
+
+exit 0
+
+# EOF

tests/Memory_safety_-_Remote_control_receiver.test

@@ -0,0 +1,43 @@
+#!/bin/sh
+#
+# Run valgrind's memory checker while receiving remote control commands.
+
+# Dummy assignments for "shellcheck".
+sourcePath="${sourcePath:-.}"; testSubject="${testSubject:-false}"; workFile1="${workFile1:-.tmp1}"; workFile2="${workFile2:-.tmp2}"; workFile3="${workFile3:-.tmp3}"; workFile4="${workFile4:-.tmp4}"
+
+# Do nothing if it is not supported.
+if ! "${testSubject}" -h 2>/dev/null | grep -Eq "^  -R,"; then
+	echo "Not supported on this platform"
+	exit 77
+fi
+
+# Load the valgrind function.
+. "${sourcePath}/tests/run-valgrind.sh"
+
+dd if=/dev/urandom of="${workFile1}" bs=1024 count=10240 2>/dev/null
+
+# Check from the POV of the process being controlled.
+true > "${workFile3}"
+(
+set +e
+while ! test -s "${workFile3}"; do usleep 200000 2>/dev/null || sleep 1; done
+for loopCount in 1 2 3; do
+	"${testSubject}" -R "$(cat "${workFile3}")" -apterb	|| exit 1
+	(usleep 200000 || sleep 1) 2>/dev/null
+	"${testSubject}" -R "$(cat "${workFile3}")" -p		|| exit 1
+	(usleep 200000 || sleep 1) 2>/dev/null
+	"${testSubject}" -R "$(cat "${workFile3}")" -N "test"	|| exit 1
+	(usleep 200000 || sleep 1) 2>/dev/null
+	"${testSubject}" -R "$(cat "${workFile3}")" -F "%e"	|| exit 1
+	(usleep 200000 || sleep 1) 2>/dev/null
+	"${testSubject}" -R "$(cat "${workFile3}")" -N "."	|| exit 1
+	(usleep 200000 || sleep 1) 2>/dev/null
+	echo "${loopCount}" >/dev/null	# dummy for shellcheck
+done
+"${testSubject}" -R "$(cat "${workFile3}")" -L 10M
+) &
+{ runWithValgrind -L 100k -i 0.1 -f -P "${workFile3}" "${workFile1}" > "${workFile2}" 2>/dev/null; } 4>&1 || exit 1
+
+exit 0
+
+# EOF