Date update.

Reviewed-on: https://codeberg.org/ivarch/pv/pulls/175

Makefile.am

@@ -8,14 +8,13 @@ bin_PROGRAMS = pv
 dist_doc_DATA = README.md docs/INSTALL docs/COPYING docs/NEWS.md docs/ACKNOWLEDGEMENTS.md docs/DEVELOPERS.md
 dist_man1_MANS = docs/pv.1
 
-EXTRA_DIST = docs/pv.1.md docs/benchmark.sh docs/test-on-vm-lab.sh docs/build-package.sh docs/release.sh
+EXTRA_DIST = docs/pv.1.md docs/benchmark-rw-syscalls-vs-data.sh docs/release.cf
 
 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/calc.c \
 src/pv/cursor.c \
@@ -38,6 +37,7 @@ src/pv/format/timer.c \
 src/pv/loop.c \
 src/pv/number.c \
 src/pv/proctitle.c \
+src/pv/remote.c \
 src/pv/signal.c \
 src/pv/state.c \
 src/pv/string.c \
@@ -95,11 +95,13 @@ tests/Modifiers_-_--line-mode.test \
 tests/Modifiers_-_--size_from_file_size.test \
 tests/Modifiers_-_--size.test \
 tests/Modifiers_-_--sync.test \
+tests/Sparse_-_Basic.test \
 tests/Terminal_-_Detect_width.test \
 tests/Transfer_-_--rate-limit.test \
 tests/Transfer_-_--remote.test \
 tests/Transfer_-_--stop-at-size.test \
 tests/Transfer_-_--stop-at-size_reads.test \
+tests/Watchfd_-_Multiple_arguments.test \
 tests/Watchfd_-_Multiple_descriptors.test \
 tests/Watchfd_-_Single_descriptor.test
 

README.md

@@ -1,10 +1,16 @@
 # 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
-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.
+**pv** ("Pipe Viewer") is a terminal-based tool for monitoring the progress
+of data through a pipeline and modifying its flow.
+
+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.  Data flow rate, error handling strategy, buffer size, and
+cache interaction can all be adjusted.
+
+In "**\--watchfd**" mode, **pv** will inspect another process and show its
+progress through the files it has open.
 
 
 # Documentation

configure.ac

@@ -4,7 +4,7 @@ dnl Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2025 Andrew Wood
 dnl
 dnl License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
 
-AC_INIT([pv], [1.9.42], [https://codeberg.org/ivarch/pv/issues], [pv], [https://ivarch.com/p/pv])
+AC_INIT([pv], [1.10.2], [https://codeberg.org/ivarch/pv/issues], [pv], [https://ivarch.com/p/pv])
 AC_CONFIG_SRCDIR([src/include/config.h.in])
 AC_CONFIG_AUX_DIR([build-aux])
 AC_CONFIG_HEADERS([src/include/config.h])

docs/ACKNOWLEDGEMENTS.md

@@ -108,11 +108,15 @@ is acknowledged and greatly appreciated:
  * [Alexander Petrossian](https://github.com/neopaf) - suggested using Unicode output for a more granular progress bar, and provided the codepoints to use ([#15](https://codeberg.org/ivarch/pv/issues/15))
  * [jmealo](https://codeberg.org/jmealo) - suggested JSON progress output ([#127](https://codeberg.org/ivarch/pv/issues/127))
  * [ipaqmaster](https://codeberg.org/ipaqmaster) - investigated 100%-CPU utilisation bug when piping to a command that has exited ([#164](https://codeberg.org/ivarch/pv/issues/164))
+ * Andriy Galetski, and also [thinrope](https://codeberg.org/thinrope) - suggested the "**--sparse**" option ([#45](https://codeberg.org/ivarch/pv/issues/45))
+ * [KimHansen](https://codeberg.org/KimHansen) - suggested that "**--watchfd**" should keep its display when the process ends ([#81](https://codeberg.org/ivarch/pv/issues/81))
 
 Translations provided through [Codeberg Weblate](https://translate.codeberg.org/projects/pv/):
 
  * **Czech**
    * [mmatous](https://translate.codeberg.org/user/mmatous/) (135)
+ * **Finnish**
+   * [artnay](https://translate.codeberg.org/user/artnay/) (65)
  * **French**
    * anonymous suggestions (7)
    * [milimarg](https://codeberg.org/milimarg) (13)

docs/NEWS.md

@@ -1,3 +1,22 @@
+### 1.10.2 - 22 November 2025
+
+ * *i18n:* Finnish translations updated
+ * *cleanup:* adjust valgrind suppressions so memory safety tests work on LTO builds ([#174](https://codeberg.org/ivarch/pv/issues/174)/[Debian bug 1121157](https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1121157))
+
+### 1.10.1 - 12 November 2025
+
+ * *fix:* correct **--watchfd** memory allocation error when given multiple arguments ([#170](https://codeberg.org/ivarch/pv/issues/170))
+
+### 1.10.0 - 7 November 2025
+
+ * *feature:* new **--query** option to show the transfer status of another running **pv** ([#101](https://codeberg.org/ivarch/pv/issues/101))
+ * *fix:* make the timers work consistently in **--watchfd** if paused and resumed ([#169](https://codeberg.org/ivarch/pv/issues/169))
+
+### 1.9.44 - 18 October 2025
+
+ * *feature:* new **--sparse** option to write sparse output ([#45](https://codeberg.org/ivarch/pv/issues/45))
+ * *fix:* don't clear the **--watchfd** display when the watched process ends ([#81](https://codeberg.org/ivarch/pv/issues/81))
+
 ### 1.9.42 - 11 October 2025
 
  * *feature:* permit multiple arguments to **--watchfd** ([#12](https://codeberg.org/ivarch/pv/issues/12))

docs/build-package.sh

@@ -1,149 +0,0 @@
-#!/bin/sh
-#
-# Usage: sh build-package.sh source-1.2.3.tar.gz
-#
-# Given a tar.gz, build a package for the current OS.
-#
-# Supports these packaging types:
-#
-#   .deb (Debian, Ubuntu, etc) - requires dpkg-dev, debhelper
-#   .rpm (AlmaLinux, Rocky Linux, OpenSUSE etc) - requires rpmbuild
-#
-# If the MAINTAINER environment variable is set, this is used as a GPG key
-# ID for package signing.
-#
-# The packages built with this script are not "official", in that they are
-# not part of any Linux distribution and may not follow the distribution's
-# policies.  Use at your own risk.
-#
-# Copyright 2024-2025 Andrew Wood
-# License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
-
-sourceArchive="$1"
-test -n "${sourceArchive}" && test -f "${sourceArchive}" \
-|| { printf "%s: %s: %s\n" "${0##*/}" "${sourceArchive}" "source archive not found" 1>&2; exit 1; }
-
-packageName="pv"
-packageSummary="Shell pipeline element to meter data passing through"
-packageDescription="\
-pv (Pipe Viewer) can be inserted into any normal pipeline between two
-processes to give a visual indication of how quickly data is passing
-through, how long it has taken, how near to completion it is, and an
-estimate of how long it will be until completion."
-packageUrl="https://ivarch.com/p/pv"
-sourceUrl="https://ivarch.com/programs/sources/${packageName}-%{version}.tar.gz"
-packageEmail="Andrew Wood <pv@ivarch.com>"
-
-workDir="$(mktemp -d)" || exit 1
-trap 'rm -rf "${workDir}"' EXIT
-
-# Infer the version from the most recent NEWS entry.
-version="$(tar xzf "${sourceArchive}" --wildcards -O '*/docs/NEWS.md' 2>/dev/null | awk '/^### [0-9]/{print $2}' | sed -n 1p)"
-
-if command -v rpmbuild >/dev/null 2>&1; then
-	# Build an RPM.
-	cat > "${workDir}"/spec <<EOF
-Summary: ${packageSummary}
-Name: ${packageName}
-Version: ${version}
-Release: 1%{?dist}
-License: GPLv3+
-Source: ${sourceUrl}
-Url: ${packageUrl}
-
-%description
-${packageDescription}
-
-%prep
-%setup -q
-
-%build
-%configure
-make %{?_smp_mflags}
-
-%install
-test -n "\${RPM_BUILD_ROOT}" && test "\${RPM_BUILD_ROOT}" != '/' && rm -rf "\${RPM_BUILD_ROOT}"
-make install DESTDIR="\${RPM_BUILD_ROOT}"
-rm -rf "\${RPM_BUILD_ROOT}/usr/share/doc"
-%find_lang %{name}
-
-%check
-make check SKIP_VALGRIND_TESTS=1
-
-%clean
-test -n "\${RPM_BUILD_ROOT}" && test "\${RPM_BUILD_ROOT}" != '/' && rm -rf "\${RPM_BUILD_ROOT}"
-
-%files -f %{name}.lang
-%defattr(-, root, root)
-%{_bindir}/*
-%{_mandir}/man1/*
-
-%doc README.md docs/NEWS.md docs/ACKNOWLEDGEMENTS.md docs/COPYING
-
-%changelog
-* $(date '+%a %b %d %Y') ${packageEmail} - ${version}-1
-- Package built from main source.
-EOF
-	mkdir "${workDir}/SOURCES"
-	cp "${sourceArchive}" "${workDir}/SOURCES/${packageName}-${version}.tar.gz"
-	rpmbuild -D "%_topdir ${workDir}" -bb "${workDir}/spec" || exit 1
-	if test -n "${MAINTAINER}"; then
-		# Sign the RPMs.
-		rpm -D "%_gpg_name ${MAINTAINER}" --addsign "${workDir}/RPMS"/*/*.rpm || exit 1
-	fi
-	cp -v "${workDir}/RPMS"/*/*.rpm .
-fi
-
-if command -v dpkg-buildpackage >/dev/null 2>&1; then
-	# Build a Debian package.
-	mkdir "${workDir}/build" "${workDir}/build/debian" "${workDir}/build/debian/source"
-
-	tar xzf "${sourceArchive}" -C "${workDir}/build" --strip-components=1
-
-	printf "%s\n" "10" > "${workDir}/build/debian/compat"
-	touch "${workDir}/build/debian/copyright"
-	printf "%s\n" "3.0 (quilt)" > "${workDir}/build/debian/source/format"
-
-	cat > "${workDir}/build/debian/rules" <<EOF
-#!/usr/bin/make -f
-export DH_VERBOSE = 1
-export DEB_BUILD_MAINT_OPTIONS = hardening=+all
-export DEB_CFLAGS_MAINT_APPEND  = -Wall -pedantic
-export DEB_LDFLAGS_MAINT_APPEND = -Wl,--as-needed
-
-%:
-	dh \$@
-EOF
-	chmod 700 "${workDir}/build/debian/rules"
-
-	cat > "${workDir}/build/debian/control" <<EOF
-Source: ${packageName}
-Maintainer: ${packageEmail}
-Section: misc
-Priority: optional
-Standards-Version: 3.9.2
-Build-Depends: debhelper (>= 9)
-
-Package: ${packageName}
-Architecture: any
-Depends: \${misc:Depends}
-Description: ${packageSummary}
-$(printf "%s\n.\n" "${packageDescription}" | sed 's,^, ,')
-EOF
-
-	cat > "${workDir}/build/debian/changelog" <<EOF
-${packageName} (${version}-1) UNRELEASED; urgency=low
-
-  * Package built from main source.
-
- -- ${packageEmail}  $(date -R)
-EOF
-
-	if test -n "${MAINTAINER}"; then
-		(cd "${workDir}/build" && dpkg-buildpackage --build=binary --force-sign --sign-key="${MAINTAINER}") || exit 1
-	else
-		(cd "${workDir}/build" && dpkg-buildpackage --build=binary) || exit 1
-	fi
-
-	cp -v "${workDir}"/*.deb . || exit 1
-fi

docs/pv.1

@@ -1,7 +1,7 @@
-.TH PV 1 2025-10-11 pv-1.9.42 "User Commands"
+.TH PV 1 2025-11-22 pv-1.10.2 "User Commands"
 .\"
 .SH NAME
-pv \- monitor the progress of data through a pipe
+pv \- monitor and manage the progress of data through a pipe
 .\"
 .SH SYNOPSIS
 .B pv
@@ -11,16 +11,22 @@ pv \- monitor the progress of data through a pipe
 \fIPID\fR[:\fIFD\fR]|=\fINAME\fR|@\fILISTFILE\fR...
 .PP
 \fBpv\fR \fB\-R\fR|\fB\-\-remote\fR \fIPID\fR [\fIOPTION\fR]...
+.PP
+\fBpv\fR \fB\-Q\fR|\fB\-\-query\fR \fIPID\fR [\fIOPTION\fR]...
 .\"
 .SH DESCRIPTION
 Show 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.
+The data flow rate, error handling strategy, buffer size, and cache
+interaction can all be adjusted.
 .PP
 Each \fIFILE\fR is copied to standard output.
 With no \fIFILE\fR, or when \fIFILE\fR is \*(lq-\*(rq, standard input is
 read.
-This is the same behaviour as \fBcat\fR(1).
+.PP
+In \*(lq\fB\-\-watchfd\fR\*(rq mode, inspect another process and show its
+progress through the files it has open.
 .\"
 .SH OPTIONS
 .\"
@@ -273,9 +279,9 @@ from or to a pipe than regular \fBread\fR(2) and \fBwrite\fR(2), but means
 that the transfer buffer may not be used.
 This prevents \*(lq\fB\-\-buffer\-percent\fR\*(rq and
 \*(lq\fB\-\-last\-written\fR\*(rq from working, cannot work with
-\*(lq\fB\-\-discard\fR\*(rq, and makes \*(lq\fB\-\-buffer\-size\fR\*(rq
-redundant, so using any of those options automatically switches on
-\*(lq\fB\-\-no\-splice\fR\*(rq.
+\*(lq\fB\-\-sparse\fR\*(rq or \*(lq\fB\-\-discard\fR\*(rq, and makes
+\*(lq\fB\-\-buffer\-size\fR\*(rq redundant, so using any of those options
+automatically switches on \*(lq\fB\-\-no\-splice\fR\*(rq.
 Switching on this option results in a small loss of transfer efficiency.
 It has no effect on systems where \fBsplice\fR(2) is unavailable.
 .TP
@@ -325,6 +331,13 @@ failures with an error of \*(lqInvalid argument\*(rq, especially if reading
 and writing files across a variety of filesystems in a single \fBpv\fR call.
 Use this option with caution.
 .TP
+.B \-O, \-\-sparse
+When writing null bytes, try to seek, producing a sparse output file.
+Implies \*(lq\fB\-\-no\-splice\fR\*(rq.
+On filesystems without sparse file support, or when the output is not
+seekable, this option will have no effect other than to turn on
+\*(lq\fB\-\-no\-splice\fR\*(rq.
+.TP
 .B \-X, \-\-discard
 Instead of transferring input data to standard output, discard it.
 This is equivalent to redirecting standard output to \fI/dev/null\fR,
@@ -384,6 +397,17 @@ Note that some options cannot be changed while running, such as
 \*(lq\fB\-\-cursor\fR\*(rq, \*(lq\fB\-\-line\-mode\fR\*(rq,
 \*(lq\fB\-\-force\fR\*(rq, \*(lq\fB\-\-delay\-start\fR\*(rq,
 \*(lq\fB\-\-skip\-errors\fR\*(rq, and \*(lq\fB\-\-stop\-at\-size\fR\*(rq.
+.TP
+.BI \-Q\  PID \fR,\ \fB\-\-query\  PID
+Display the transfer progress of another instance of \fBpv\fR with process
+ID \fIPID\fR, owned by the same user.
+.IP
+Some output modifiers can only be used while querying another process if
+they match those of that process - such as
+\*(lq\fB\-\-line\-mode\fR\*(rq,
+\*(lq\fB\-\-null\fR\*(rq, and
+\*(lq\fB\-\-average\-rate\-window\fR\*(rq.
+Data transfer modifiers will have no effect.
 .\"
 .SS "Other options"
 .TP
@@ -684,8 +708,8 @@ pv \-\-numeric \-\-format '{"elapsed":%t,"bytes":%b,"rate":%r,"percentage":%{pro
 .in
 .\"
 .SH EXIT STATUS
-An exit status of 1 indicates a problem with the \*(lq\fB\-\-remote\fR\*(rq
-or \*(lq\fB\-\-pidfile\fR\*(rq options.
+An exit status of 1 indicates a problem with the \*(lq\fB\-\-remote\fR\*(rq,
+\*(lq\fB\-\-query\fR\*(rq, or \*(lq\fB\-\-pidfile\fR\*(rq options.
 .PP
 Any other exit status is a bitmask of the following:
 .TP 5
@@ -714,10 +738,10 @@ The following environment variables may affect \fBpv\fR:
 .TP
 .B HOME
 The current user's home directory.
-This may be used by \*(lq\fB\-\-remote\fR\*(rq to exchange messages between
-\fBpv\fR instances: if the \fI/run/user/UID/\fR directory does not exist
-(where \fIUID\fR is the current user ID), then \fI$HOME/.pv/\fR will be used
-instead.
+This may be used by \*(lq\fB\-\-remote\fR\*(rq and \*(lq\fB\-\-query\fR\*(rq
+to exchange messages between \fBpv\fR instances: if the \fI/run/user/UID/\fR
+directory does not exist (where \fIUID\fR is the current user ID), then
+\fI$HOME/.pv/\fR will be used instead.
 .TP
 .BR TMPDIR ", " TMP
 The directory to create per-tty lock files for the terminal when using
@@ -761,9 +785,9 @@ issue #105
 .UE
 for full details.
 .PP
-The \*(lq\fB\-\-remote\fR\*(rq option requires that either
-\fI/run/user/<uid>/\fR or \fI$HOME/\fR can be written to, for inter-process
-communication.
+The \*(lq\fB\-\-remote\fR\*(rq and \*(lq\fB\-\-query\fR\*(rq options require
+that either \fI/run/user/<uid>/\fR or \fI$HOME/\fR can be written to, for
+inter-process communication.
 .PP
 The \*(lq\fB\-\-size\fR\*(rq option has no effect if used with
 \*(lq\fB\-\-watchfd\fR\~\fIPID\fR\*(rq to watch all file descriptors of a
@@ -791,8 +815,15 @@ have a suffix.
 .PP
 Numbers passed to \*(lq\fB\-\-last\-written\fR\*(rq,
 \*(lq\fB\-\-width\fR\*(rq, \*(lq\fB\-\-height\fR\*(rq,
-\*(lq\fB\-\-average\-rate\-window\fR\*(rq, and \*(lq\fB\-\-remote\fR\*(rq
-must be integers with no suffix.
+\*(lq\fB\-\-average\-rate\-window\fR\*(rq, \*(lq\fB\-\-remote\fR\*(rq, and
+\*(lq\fB\-\-query\fR\*(rq must be integers with no suffix.
+.PP
+When \*(lq\fB\-\-sparse\fR\*(rq is in effect and output is being written to
+a file, that file may look like it has stopped growing if inspected with
+\fBls\fR(1) while null bytes are being written, even though \fBpv\fR still
+reports progress.
+This is because of the way sparse output is achieved, and the file will be
+the correct size when the transfer ends.
 .\"
 .SH REPORTING BUGS
 Please report bugs or feature requests via the issue tracker linked from the

docs/pv.1.md

@@ -1,6 +1,6 @@
 # NAME
 
-pv - monitor the progress of data through a pipe
+pv - monitor and manage the progress of data through a pipe
 
 # SYNOPSIS
 
@@ -11,15 +11,21 @@ pv - monitor the progress of data through a pipe
 
 **pv** **-R**\|**\--remote** *PID* \[*OPTION*\]\...
 
+**pv** **-Q**\|**\--query** *PID* \[*OPTION*\]\...
+
 # DESCRIPTION
 
 Show 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.
+throughput rate, total data transferred, and ETA. The data flow rate,
+error handling strategy, buffer size, and cache interaction can all be
+adjusted.
 
 Each *FILE* is copied to standard output. With no *FILE*, or when *FILE*
-is "-", standard input is read. This is the same behaviour as
-**cat**(1).
+is "-", standard input is read.
+
+In "**\--watchfd**" mode, inspect another process and show its progress
+through the files it has open.
 
 # OPTIONS
 
@@ -281,11 +287,11 @@ are explicitly switched on will be shown.
     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
     "**\--buffer-percent**" and "**\--last-written**" from working,
-    cannot work with "**\--discard**", and makes "**\--buffer-size**"
-    redundant, so using any of those options automatically switches on
-    "**\--no-splice**". Switching on this option results in a small loss
-    of transfer efficiency. It has no effect on systems where
-    **splice**(2) is unavailable.
+    cannot work with "**\--sparse**" or "**\--discard**", and makes
+    "**\--buffer-size**" redundant, so using any of those options
+    automatically switches on "**\--no-splice**". Switching on this
+    option results in a small loss of transfer efficiency. It has no
+    effect on systems where **splice**(2) is unavailable.
 
 **-E, \--skip-errors**
 
@@ -336,6 +342,13 @@ are explicitly switched on will be shown.
     especially if reading and writing files across a variety of
     filesystems in a single **pv** call. Use this option with caution.
 
+**-O, \--sparse**
+
+:   When writing null bytes, try to seek, producing a sparse output
+    file. Implies "**\--no-splice**". On filesystems without sparse file
+    support, or when the output is not seekable, this option will have
+    no effect other than to turn on "**\--no-splice**".
+
 **-X, \--discard**
 
 :   Instead of transferring input data to standard output, discard it.
@@ -399,6 +412,16 @@ are explicitly switched on will be shown.
     "**\--delay-start**", "**\--skip-errors**", and
     "**\--stop-at-size**".
 
+**-Q PID, \--query PID**
+
+:   Display the transfer progress of another instance of **pv** with
+    process ID *PID*, owned by the same user.
+
+    Some output modifiers can only be used while querying another
+    process if they match those of that process - such as
+    "**\--line-mode**", "**\--null**", and "**\--average-rate-window**".
+    Data transfer modifiers will have no effect.
+
 ## Other options
 
 **-P FILE, \--pidfile FILE**
@@ -652,8 +675,8 @@ Showing progress as lines of JSON data:
 
 # EXIT STATUS
 
-An exit status of 1 indicates a problem with the "**\--remote**" or
-"**\--pidfile**" options.
+An exit status of 1 indicates a problem with the "**\--remote**",
+"**\--query**", or "**\--pidfile**" options.
 
 Any other exit status is a bitmask of the following:
 
@@ -691,9 +714,10 @@ The following environment variables may affect **pv**:
 **HOME**
 
 :   The current user\'s home directory. This may be used by
-    "**\--remote**" 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.
+    "**\--remote**" and "**\--query**" 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**
 
@@ -725,8 +749,9 @@ brackets to force the use of a subshell:
 Refer to [issue #105](https://codeberg.org/ivarch/pv/issues/105) for
 full details.
 
-The "**\--remote**" option requires that either */run/user/\<uid\>/* or
-*\$HOME/* can be written to, for inter-process communication.
+The "**\--remote**" and "**\--query**" options require that either
+*/run/user/\<uid\>/* or *\$HOME/* can be written to, for inter-process
+communication.
 
 The "**\--size**" option has no effect if used with
 "**\--watchfd** *PID*" to watch all file descriptors of a process, but
@@ -750,8 +775,14 @@ Numbers passed to "**\--interval**" and "**\--delay-start**" may be
 integers or decimals, but may not have a suffix.
 
 Numbers passed to "**\--last-written**", "**\--width**",
-"**\--height**", "**\--average-rate-window**", and "**\--remote**" must
-be integers with no suffix.
+"**\--height**", "**\--average-rate-window**", "**\--remote**", and
+"**\--query**" must be integers with no suffix.
+
+When "**\--sparse**" is in effect and output is being written to a file,
+that file may look like it has stopped growing if inspected with
+**ls**(1) while null bytes are being written, even though **pv** still
+reports progress. This is because of the way sparse output is achieved,
+and the file will be the correct size when the transfer ends.
 
 # REPORTING BUGS
 

docs/release.cf

@@ -0,0 +1,51 @@
+# Configuration for the foss-release.sh script.
+# The script is here: https://codeberg.org/ivarch/scripts
+
+set maintainer andrew.wood@ivarch.com
+set mainprogram auto
+set version auto
+set mandir docs
+set newsdir docs
+
+export SKIP_VALGRIND_TESTS=1
+
+section Initial checks
+action check_po
+action check_version_news
+action check_version_autoconf
+action check_version_man
+
+section Initial build
+action configure
+action make
+action check_analyse
+action check_version_program
+action check_version_year
+
+section Documentation and source reformatting
+action man_md
+action man_html
+action news_html
+action make_indent
+
+section Update po files
+action make_update_po
+
+section Run autoreconf
+action autoreconf
+
+section Commit check
+action check_git_status
+
+section Release archive
+action check_make_distcheck
+action make_dist
+
+section Lab tests
+action labtest
+
+section Sign release
+action sign_tarball
+
+section Build OS packages
+action parmo_build

docs/release.sh

@@ -1,217 +0,0 @@
-#!/bin/sh
-#
-# Automate a portion of the release checklist.  Expects to be run from a
-# build directory, such as one in which "configure" has been run, i.e. 
-# there should be a Makefile present.
-#
-# Requires "parmo" (https://ivarch.com/p/parmo); builds for all targets that
-# parmo supports.
-#
-# All of the release artefacts are placed in a "PV-RELEASE-x" directory,
-# where "x" is the version.
-#
-# Copyright 2024-2025 Andrew Wood
-# License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
-
-srcdir="$(awk '/^VPATH/{print $NF}' < Makefile | sed -n 1p)"
-manuals="$(find "${srcdir}/docs" -mindepth 1 -maxdepth 1 -type f -name "*.[0-9]" -printf "%f\n")"
-mainProgram="$(awk '/^[a-z]+_PROGRAMS/{print $3}' Makefile |cut -d '$' -f 1 | sed -n 1p)"
-labTestScript="${srcdir}/docs/test-on-vm-lab.sh"
-
-status () {
-	test -n "$*" && printf "\n"
-	printf '\e]0;%s\007\r' "$*" >&2
-	if test -n "$*"; then
-		tput rev >&2
-		printf " -- %s -- " "$*" >&2
-		tput sgr0 >&2
-		printf "\n\n"
-	fi
-}
-
-possiblyDie () {
-	printf "\n" >&2
-	tput bold >&2
-	printf "%s: %s\n" "release" "$*" >&2
-	tput sgr0 >&2
-	printf "\n%s\n" "Type 'y' and hit Enter to continue anyway."
-	read -r line
-	test "${line}" = "y" || { status ""; exit 1; }
-}
-
-test -e "${labTestScript}" || labTestScript=""
-
-# The checklist is re-ordered a little so that we defer making changes (like
-# "make indent") until as late as possible, in case any checks fail.
-
-status "Initial checks"
-
-# Check MAINTAINER is provided.
-test -n "${MAINTAINER}" || possiblyDie "environment variable MAINTAINER is empty"
-
-# * Check that _po/POTFILES.in_ is up to date
-if test -d "${srcdir}/po"; then
-	inFile="$(sort < "${srcdir}/po/POTFILES.in")"
-	realList="$(find "${srcdir}" -name "*.c" -printf "%P\n" | sort)"
-	test "${inFile}" = "${realList}" || possiblyDie "po/POTFILES.in is incorrect"
-fi
-
-status "Initial build"
-make || possiblyDie "failed 'make'"
-
-# * Run "_make analyse_" and see whether remaining warnings can be addressed
-status "Source analysis"
-make analyse || possiblyDie "failed 'make analyse'"
-
-# * Version bump and documentation checks:
-
-status "Version checks"
-
-#   * Check that _docs/NEWS.md_ is up to date
-sed -n 1p docs/NEWS.md | grep -Fqi unreleased && possiblyDie "NEWS.md says 'unreleased' on line 1"
-versionInNews="$(awk 'FNR==1{print $2}' "${srcdir}/docs/NEWS.md")"
-printf "%s\n" "${versionInNews}" | grep -Eq '^[0-9]' || possiblyDie "version in NEWS.md (${versionInNews}) is not numeric"
-
-#   * Check the version in both _configure.ac_ and _docs/NEWS.md_ was updated
-versionInConfig="$(grep ^AC_INIT "${srcdir}/configure.ac" | cut -d '[' -f 3 | cut -d ']' -f 1)"
-test "${versionInConfig}" = "${versionInNews}" || possiblyDie "version in configure.ac (${versionInConfig}) mismatches NEWS.md (${versionInNews})"
-
-#   * Check that the manuals are up to date
-for manPage in ${manuals}; do
-	versionInManual="$(awk 'FNR==1 {print $5}' "${srcdir}/docs/${manPage}" | cut -d - -f 2)"
-	test "${versionInManual}" = "${versionInNews}" || possiblyDie "version in ${manPage} (${versionInManual}) mismatches NEWS.md (${versionInNews})"
-done
-
-#   * Check that the program version is correct
-versionInVersionOutput="$(./"${mainProgram}" --version | awk 'FNR==1{print $NF}')"
-test "${versionInVersionOutput}" = "${versionInNews}" || possiblyDie "version in '${mainProgram} --version' (${versionInVersionOutput}) mismatches NEWS.md (${versionInNews})"
-
-#   * Check that the year displayed by --version is correct
-yearInVersion="$(./"${mainProgram}" --version | awk '/^Copyright/{print $2}')"
-yearNow="$(date '+%Y')"
-test "${yearInVersion}" = "${yearNow}" || possiblyDie "the year in '--version' (${yearInVersion}) is not this year (${yearNow})"
-
-#   * Make the Markdown version of the manuals and, if using VPATH, copy the result to the source directory
-# We also wipe everything in "docs" so we don't accidentally package
-# leftover working files.
-
-status "Markdown manual"
-
-rm -f docs/*
-for manPage in ${manuals}; do
-	make "docs/${manPage}.md"
-	cp "docs/${manPage}.md" "${srcdir}/docs/${manPage}.md"
-done
-
-# * Run "_make indent; make indent indentclean check_"
-status "Reformat source"
-make indent
-make indent indentclean
-# The check will run later as part of "make distcheck".
-
-# * Run "_make -C po update-po_"
-status "Update po files"
-if test -d "${srcdir}/po"; then
-	make -C po update-po || possiblyDie "update-po failed"
-fi
-
-# * Run "_autoreconf_" in the source directory
-status "Run autoreconf"
-(cd "${srcdir}" && autoreconf -is) || possiblyDie "autoreconf failed"
-
-# * Ensure everything has been committed to the repository
-status "Commit check"
-gitStatus="$(cd "${srcdir}" && git status --porcelain=v1)" || possiblyDie "failed to run 'git status'"
-test -z "${gitStatus}" || possiblyDie "not everything is committed - 'git status' is not empty"
-
-# * Consistency and build checks:
-#   * Wipe the build directory, and run "_configure_" there
-#   * Run "_make distcheck_"
-# * Run "_make release MAINTAINER=<signing-user>_"
-# NB "make release" implies "make distcheck".
-# We set SKIP_VALGRIND_TESTS=1 because the full tests will run in the lab
-# check.
-status "Release archive"
-workDir="$(mktemp -d)" || possiblyDie "mktemp failed"
-trap 'chmod -R u+w "${workDir}"; rm -rf "${workDir}"' EXIT
-(
-cd "${workDir}" || exit 1
-sh "${srcdir}/configure" || exit 1
-make -j8 release SKIP_VALGRIND_TESTS=1 || exit 1
-exit 0
-) || possiblyDie "failed on 'make release'"
-
-sourceArchive="$(find "${workDir}" -mindepth 1 -maxdepth 1 -type f -name "*.tar.gz")"
-test -e "${sourceArchive}.asc" || possiblyDie "release was not signed"
-
-#   * Run "_./configure && make check_" on all test systems, using the _tar.gz_ that was just created
-#   * Run a cross-compilation check
-if test -n "${labTestScript}"; then
-	status "Lab test"
-	sh "${labTestScript}" "${sourceArchive}" || possiblyDie "lab test failed"
-fi
-
-# * Update the project web site:
-#   * Copy the release _.tar.gz_, _.txt_, and _.asc_ files to the web site
-#   * Use "_pandoc --from markdown --to html_" to convert the news and manual to HTML
-status "Release dir"
-releaseDir="PV-RELEASE-${versionInNews}"
-rm -rf "${releaseDir}"
-mkdir "${releaseDir}"
-cp "${sourceArchive}" "${sourceArchive}.asc" "${sourceArchive}.txt" "${releaseDir}/" || possiblyDie "failed to copy release files"
-
-status "HTML docs"
-for manPage in ${manuals}; do
-	pandoc --from markdown --to html --shift-heading-level-by=1 < "${srcdir}/docs/${manPage}.md" > "${releaseDir}/${manPage}.html"
-done
-pandoc --from markdown --to html < "${srcdir}/docs/NEWS.md" > "${releaseDir}/news.html"
-
-# Build OS packages.
-buildTargets=$(parmo targets)
-if test -n "${MAINTAINER}"; then
-	gpg --export-secret-key --armor "${MAINTAINER}" > "${workDir}/signing-key" \
-	|| possiblyDie 'failed to export signing key'
-fi
-for buildTarget in ${buildTargets}; do
-	status "Package: ${buildTarget}"
-	buildOK=true
-	rm -rf "${workDir}/package"
-	mkdir "${workDir}/package"
-	if test -s "${workDir}/signing-key"; then
-		parmo --key "${workDir}/signing-key" --source "${sourceArchive}" --destination "${workDir}/package" --target "${buildTarget}" build-package \
-		|| possiblyDie "${buildTarget}: build failed"
-	else
-		parmo --source "${sourceArchive}" --destination "${workDir}/package" --target "${buildTarget}" build-package \
-		|| possiblyDie "${buildTarget}: build failed"
-	fi
-	find "${workDir}/package" -type f \
-	| while read -r packageFile; do
-		destinationFile="${releaseDir}/${packageFile##*/}"
-		case "${destinationFile}" in
-		*.deb) destinationFile="${destinationFile%.deb}_${buildTarget}.deb" ;;
-		*.txt) destinationFile="" ;;
-		esac
-		test -n "${destinationFile}" || continue
-		cp "${packageFile}" "${destinationFile}"
-		chmod 644 "${destinationFile}"
-	done
-done
-
-find "${releaseDir}/" -type f -exec chmod 644 '{}' ';'
-find "${releaseDir}/" -type d -exec chmod 755 '{}' ';'
-
-status "Done"
-
-cat <<EOF
-
-Files are under: ${releaseDir}/
-
-Still to do:
-  * Update the 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
-
-EOF
-
-exit 0

docs/test-on-vm-lab.sh

@@ -1,343 +0,0 @@
-#!/bin/sh
-#
-# Run "make check" from a source tarball, on a whole lab of VMs.
-#
-# The source tarball should contain a directory; this directory must contain
-# a "configure" script.  After running "configure", this script calls "make"
-# and then "make check", from a build subdirectory.
-#
-# Hostnames need to be listed on the command line after the tarball, or in
-# ~/.config/lab-hosts.  They need to be reachable over SSH with no password.
-#
-# Cross-compilation is performed if the hostname is of the form "x:y", where
-# "x" is a target like "arm-linux-gnueabi", and "y" is the name of a host of
-# that architecture.  The package is built locally with "--host=x" and the
-# result is copied to "y" and "make check" is run.
-#
-# Displays progress to the terminal and produces a tarball of results.  In
-# the results, the file "latest-status.txt" contains the last status
-# display, and there is a directory for each host.  The directories contain
-# SCW metrics files plus "output.log" (timestamped), "raw-output.log"
-# (without timestamps), "framework-output.log" (messages from this script),
-# and the "config.log", "test-suite.log", and "tests/" from the build area.
-#
-# Requires "scw" (https://ivarch.com/p/scw).
-#
-# Copyright 2024-2025 Andrew Wood
-# License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
-#
-# Version: 0.0.1 / 16 Dec 2024
-
-# Number of tests to run in parallel on each host.
-concurrency="1"
-
-# Run a build and check, according to these environment variables:
-#
-#  sourceArchive       local source tarball path
-#  buildHost           where to build, or "" for local
-#  checkHost           where to test, or "" for local
-#  remoteBuildDir      temp directory for remote build or check
-#  localBuildDir       temp directory for local build
-#  configureArguments  extra "configure" script arguments
-#
-# Does not return - always exits.
-#
-# Expects to be run under SCW, so writes status to fd 3.
-#
-testRunner () {
-	printf '%s %s\n' 'notice' 'creating build area' >&3
-	if test -n "${buildHost}"; then
-		ssh "${buildHost}" mkdir "${remoteBuildDir}" || exit 1
-	else
-		mkdir "${localBuildDir}" || exit 1
-	fi
-	printf '%s %s\n' 'ok' 'created build area' >&3
-
-	if test -n "${checkHost}"; then
-		printf '%s %s\n' 'notice' 'creating check area' >&3
-		ssh "${checkHost}" mkdir "${remoteBuildDir}" || exit 1
-		printf '%s %s\n' 'ok' 'created check area' >&3
-	fi
-
-	printf '%s %s\n' 'notice' 'copying source archive' >&3
-	if test -n "${buildHost}"; then
-		scp "${sourceArchive}" "${buildHost}:${remoteBuildDir}/" || exit 1
-	elif test -n "${checkHost}"; then
-		scp "${sourceArchive}" "${checkHost}:${remoteBuildDir}/" || exit 1
-	fi
-	printf '%s %s\n' 'ok' 'source archive copied' >&3
-
-	printf '%s %s\n' 'notice' 'extracting source archive' >&3
-	if test -n "${buildHost}"; then
-		ssh "${buildHost}" tar xzf "${remoteBuildDir}/${sourceArchive##*/}" -C "${remoteBuildDir}" || exit $?
-	else
-		tar xzf "${sourceArchive}" -C "${localBuildDir}" || exit $?
-		ssh "${checkHost}" tar xzf "${remoteBuildDir}/${sourceArchive##*/}" -C "${remoteBuildDir}" || exit $?
-	fi
-	printf '%s %s\n' 'ok' 'source archive extracted' >&3
-
-	stepResult="ok"
-	if test -n "${buildHost}"; then
-		printf '%s %s\n' 'notice' 'configuring' >&3
-		ssh "${buildHost}" "cd \"${remoteBuildDir}\" && mkdir BUILD && cd BUILD && ../*/configure ${configureArguments}" || exit $?
-	else
-		printf '%s %s\n' 'notice' 'configuring locally' >&3
-		( cd "${localBuildDir}" && mkdir BUILD && cd BUILD && ../*/configure ${configureArguments} ) || exit $?
-		printf '%s %s\n' 'notice' "configuring on ${checkHost}" >&3
-		ssh "${checkHost}" "cd \"${remoteBuildDir}\" && mkdir BUILD && cd BUILD && ../*/configure" \
-		|| { stepResult="warning"; printf '%s %s\n' 'warning' "configuration failed on ${checkHost}" >&3; }
-	fi
-	printf '%s %s\n' "${stepResult}" 'configuration completed' >&3
-
-	printf '%s %s\n' 'notice' 'building' >&3
-	if test -n "${buildHost}"; then
-		ssh "${buildHost}" "cd \"${remoteBuildDir}/BUILD\" && make -j${concurrency}" || exit $?
-	else
-		make -j${concurrency} -C "${localBuildDir}/BUILD" || exit $?
-	fi
-	printf '%s %s\n' 'ok' 'build completed' >&3
-
-	if test -n "${buildHost}"; then
-		printf '%s %s\n' 'notice' 'testing' >&3
-		ssh "${buildHost}" "cd \"${remoteBuildDir}/BUILD\" && make -j${concurrency} check" || exit $?
-		printf '%s %s\n' 'ok' 'testing completed' >&3
-	elif test -n "${checkHost}"; then
-		printf '%s %s\n' 'notice' "transferring build to ${checkHost}" >&3
-		tar cvf "${localBuildDir}/build.tar" -C "${localBuildDir}" BUILD || exit $?
-		scp "${localBuildDir}/build.tar" "${checkHost}:${remoteBuildDir}/build.tar" || exit $?
-		ssh "${checkHost}" "tar xf \"${remoteBuildDir}/build.tar\" -C \"${remoteBuildDir}\"" || exit $?
-		printf '%s %s\n' 'ok' "transferred build to ${checkHost}" >&3
-		printf '%s %s\n' 'notice' "testing on ${checkHost}" >&3
-		ssh "${checkHost}" "cd \"${remoteBuildDir}/BUILD\" && make -j${concurrency} check-TESTS XCTEST=1" || exit $?
-		printf '%s %s\n' 'ok' 'testing completed' >&3
-	fi
-
-	exit 0
-}
-
-
-# Using directory $1 for metrics and output, run the remaining arguments as
-# a command using "scw" to capture metrics and record logs.
-#
-recordCommand () {
-	targetDir="$1"
-	shift
-	mkdir -p "${targetDir}"
-	scw -c /dev/null \
-	  -s UserConfigFile=/dev/null \
-	  -s ItemsDir=/dev/null \
-	  -s MetricsDir="${targetDir}" \
-	  -s CheckLockFile="${targetDir}/.widelock" \
-	  -s OutputMap= \
-	  -s OutputMap="OES stamped ${targetDir}/output.log" \
-	  -s OutputMap="OES raw ${targetDir}/raw-output.log" \
-	  -s Command="$*" \
-	  run item
-}
-
-if test "$1" = "--testRunner"; then
-	testRunner
-	exit 1
-fi
-
-labHosts="$(cat ~/.config/lab-hosts 2>/dev/null)"
-
-workDir=$(mktemp -d) || exit 1
-trap 'rm -rf "${workDir}"' EXIT
-
-sourceArchive="$1"
-shift
-hostList="$*"
-test -n "${hostList}" || hostList="${labHosts}"
-
-test -n "${sourceArchive}" || { echo "Usage: ${0##*/} TARBALL [HOST...]"; exit 1; }
-test -s "${sourceArchive}" || { echo "${sourceArchive}: not found"; exit 1; }
-
-attrBold="$(tput bold 2>/dev/null)"
-attrUnderline="$(tput smul 2>/dev/null)"
-attrRed="$(tput setaf 1 2>/dev/null)"
-attrGreen="$(tput setaf 2 2>/dev/null)"
-attrYellow="$(tput setaf 3 2>/dev/null)"
-attrBlue="$(tput setaf 4 2>/dev/null)"
-attrMagenta="$(tput setaf 5 2>/dev/null)"
-attrCyan="$(tput setaf 6 2>/dev/null)"
-attrWhite="$(tput setaf 7 2>/dev/null)"
-attrNone="$(tput sgr0 2>/dev/null)"
-
-dateStamp="$(date +%Y%m%d-%H%M)"
-resultsArchive="result-${dateStamp}.tar.gz"
-
-startEpoch="$(date +%s)"
-
-
-for hostSpec in ${hostList}; do
-	localTestDir="${workDir}/${hostSpec}"
-	remoteBuildDir="test-${dateStamp}.$(date +%s).$$"
-	buildHost="${hostSpec}"
-	checkHost=""
-	configureArguments=""
-
-	xcFor="${hostSpec%:*}"
-	xcRunOn="${hostSpec#*:}"
-
-	if ! test "${xcFor}" = "${xcRunOn}"; then
-		localTestDir="${workDir}/${xcFor}-${xcRunOn}"
-		buildHost=""
-		checkHost="${xcRunOn}"
-		configureArguments="--host ${xcFor}"
-	fi
-
-	mkdir "${localTestDir}"
-	printf "%s\n" "${hostSpec}" > "${localTestDir}/hostSpec"
-
-	localBuildDir="${localTestDir}/XC"
-
-	(
-	flock -x 3
-
-	export sourceArchive buildHost checkHost remoteBuildDir localBuildDir configureArguments
-	recordCommand "${localTestDir}" "sh \"$0\" --testRunner" 3<&-
-
-	exec >>"${localTestDir}/output.log" 2>&1
-
-	printf '*** %s\n' 'retrieving build and test artefacts'
-	mkdir "${localTestDir}/tests"
-	if test -n "${buildHost}"; then
-		scp "${buildHost}:${remoteBuildDir}/BUILD/config.log" "${localTestDir}/"
-		scp "${buildHost}:${remoteBuildDir}/BUILD/test-suite.log" "${localTestDir}/"
-		scp "${buildHost}:${remoteBuildDir}/BUILD/tests/*" "${localTestDir}/tests/"
-	elif test -n "${checkHost}"; then
-		scp "${checkHost}:${remoteBuildDir}/BUILD/config.log" "${localTestDir}/"
-		scp "${checkHost}:${remoteBuildDir}/BUILD/test-suite.log" "${localTestDir}/"
-		scp "${checkHost}:${remoteBuildDir}/BUILD/tests/*" "${localTestDir}/tests/"
-	fi
-
-	printf '*** %s\n' 'removing build area'
-	rm -rf "${localBuildDir}"
-	if test -n "${buildHost}"; then
-		ssh "${buildHost}" rm -rf "${remoteBuildDir}"
-	elif test -n "${checkHost}"; then
-		ssh "${checkHost}" rm -rf "${remoteBuildDir}"
-	fi
-
-	printf '\n'
-
-	flock -u 3
-	) > "${localTestDir}/framework-output.log" 2>&1 3>>"${localTestDir}/active" &
-done
-
-sleep 0.1
-
-allTestHostDirs="$(find "${workDir}" -mindepth 1 -maxdepth 1 -name "[0-9A-Za-z_]*" -type d -printf "%f\n" | sort)"
-
-hostCount=0
-for testHostDir in ${allTestHostDirs}; do hostCount=$((1+hostCount)); done
-exitedCount=0
-overallStatus=""
-
-while test "${exitedCount}" -lt "${hostCount}"; do
-	width="$(tput cols 2>/dev/null)"
-	test -n "${width}" || width=80
-
-	currentEpoch="$(date +%s)"
-	elapsedSeconds=$((currentEpoch-startEpoch))
-
-	{
-	nameWidth=0
-	runningCount=0
-	failedCount=0
-	passedCount=0
-	exitedCount=0
-	overallStatus=""
-	for testHostDir in ${allTestHostDirs}; do
-		hostSpec="${testHostDir}"
-		{ read -r hostSpec < "${workDir}/${testHostDir}/hostSpec"; } 2>/dev/null
-		test "${#hostSpec}" -gt "${nameWidth}" && nameWidth="${#hostSpec}"
-
-		exec 3>>"${workDir}/${testHostDir}/active"
-		flock -x -n 3 && exitedCount=$((1+exitedCount))
-		exec 3<&-
-
-		test -e "${workDir}/${testHostDir}/ended" || runningCount=$((1+runningCount))
-		if test -e "${workDir}/${testHostDir}/failed"; then
-			overallStatus="FAIL"
-			failedCount=$((1+failedCount))
-		elif test -e "${workDir}/${testHostDir}/succeeded"; then
-			test -z "${overallStatus}" && overallStatus="PASS"
-			passedCount=$((1+passedCount))
-		fi
-	done
-	test -n "${overallStatus}" || overallStatus="----"
-
-	printf "%sT+%04d - %s%s\n\n" "${attrUnderline}" "${elapsedSeconds}" "$(date '+%Y-%m-%d %H:%M:%S')" "${attrNone}"
-
-	for testHostDir in ${allTestHostDirs}; do
-		hostSpec="${testHostDir}"
-		{ read -r hostSpec < "${workDir}/${testHostDir}/hostSpec"; } 2>/dev/null
-
-		lastStatusWord="-"
-		lastStatusMessage="-"
-		{ read -r lastStatusWord lastStatusMessage < "${workDir}/${testHostDir}/last-status"; } 2>/dev/null
-
-		lastLine="-"
-		test -s "${workDir}/${testHostDir}/output.log" && lastLine="$(tail -n 1 "${workDir}/${testHostDir}/output.log" 2>/dev/null | expand)"
-
-		testResult="----"
-		test -e "${workDir}/${testHostDir}/failed" && testResult="FAIL"
-		test -e "${workDir}/${testHostDir}/succeeded" && testResult="PASS"
-
-		remainingWidth=$((width-nameWidth-20))
-		statusWidth=$((remainingWidth*2/3))
-		test "${statusWidth}" -gt 40 && statusWidth=40
-		lastLineWidth=$((remainingWidth-statusWidth))
-
-		printf " %s%${nameWidth}s%s " "${attrBold}${attrYellow}" "${hostSpec}" "${attrNone}"
-		case "${testResult}" in
-		"PASS") printf "%s%s%s" "${attrBold}${attrGreen}" "PASS" "${attrNone}" ;;
-		"FAIL") printf "%s%s%s" "${attrBold}${attrRed}" "FAIL" "${attrNone}" ;;
-		*) printf "%s" "----"
-		esac
-
-		case "${lastStatusWord}" in
-		"(begin)"|"begin")	printf " (%s%s%s)  " "${attrBold}${attrMagenta}" "begin" "${attrNone}" ;;
-		"(end)"|"end")		printf " (%s%s%s)    " "${attrBold}${attrMagenta}" "end" "${attrNone}" ;;
-		"(notice)"|"notice")	printf " (%s%s%s) " "${attrBold}${attrCyan}" "notice" "${attrNone}" ;;
-		"(ok)"|"ok")		printf " (%s%s%s)     " "${attrBold}${attrGreen}" "ok" "${attrNone}" ;;
-		"(warning)"|"warning")	printf " (%s%s%s)" "${attrBold}${attrYellow}" "warning" "${attrNone}" ;;
-		"(error)"|"error")	printf " (%s%s%s)  " "${attrBold}${attrRed}" "error" "${attrNone}" ;;
-		*)			printf "  %7s " ""; lastStatusMessage="${lastStatusWord} ${lastStatusMessage}" ;;
-		esac
-		printf " %s%-${statusWidth}.${statusWidth}s%s" "${attrWhite}" "${lastStatusMessage}" "${attrNone}"
-		printf " %s%-${lastLineWidth}.${lastLineWidth}s%s" "${attrBlue}" "${lastLine}" "${attrNone}"
-		printf "\n"
-	done
-
-	printf "\n%s%s%s " "${attrBold}" "Overall status:" "${attrNone}"
-	case "${overallStatus}" in
-	"PASS") printf "%s%s%s" "${attrBold}${attrGreen}" "PASS" "${attrNone}" ;;
-	"FAIL") printf "%s%s%s" "${attrBold}${attrRed}" "FAIL" "${attrNone}" ;;
-	*) printf "%s" "----"
-	esac
-
-	printf "    %s%s%s " "${attrBold}" "Running,Passed,Failed:" "${attrNone}"
-	printf "%sR%d%s" "${attrBold}${attrMagenta}" "${runningCount}" "${attrNone}"
-	printf ",%sP%d%s" "${attrBold}${attrGreen}" "${passedCount}" "${attrNone}"
-	printf ",%sF%d%s" "${attrBold}${attrRed}" "${failedCount}" "${attrNone}"
-	printf " = %d" "${hostCount}"
-	printf "\n\n"
-	} > "${workDir}/latest-status.txt"
-
-	cat "${workDir}/latest-status.txt"
-	sleep 1
-done
-
-endEpoch="$(date +%s)"
-elapsedSeconds=$((endEpoch-startEpoch))
-
-printf '%s\n' 'Generating results archive'
-tar czf "${resultsArchive}" -C "${workDir}" .
-
-printf '%s: %d%s\n' 'Total time taken' "${elapsedSeconds}" "s"
-printf '%s: %s\n' 'Results archive' "${resultsArchive}"
-
-test "${overallStatus}" = "PASS" || exit 1

po/LINGUAS

@@ -3,6 +3,7 @@ de
 es
 fi
 fr
+ka
 pl
 pt
 ru

po/POTFILES.in

@@ -2,7 +2,6 @@ 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/calc.c
 src/pv/cursor.c
@@ -25,6 +24,7 @@ src/pv/format/timer.c
 src/pv/loop.c
 src/pv/number.c
 src/pv/proctitle.c
+src/pv/remote.c
 src/pv/signal.c
 src/pv/state.c
 src/pv/string.c

po/cs.po

@@ -1,7 +1,7 @@
 msgid ""
 msgstr ""
 "Report-Msgid-Bugs-To: https://codeberg.org/ivarch/pv/issues\n"
-"POT-Creation-Date: 2025-10-11 16:00+0100\n"
+"POT-Creation-Date: 2025-11-21 23:45+0000\n"
 "PO-Revision-Date: 2024-10-13 20:43+0000\n"
 "Last-Translator: mmatous <mmatous@users.noreply.translate.codeberg.org>\n"
 "Language-Team: Czech <https://translate.codeberg.org/projects/pv/pv/cs/>\n"
@@ -168,8 +168,8 @@ msgstr "vypisuj výstup i pokud standardní chybový výstup není terminál"
 msgid "use cursor positioning escape sequences"
 msgstr "pozicuj kurzor pomocí řídících znaků"
 
-#: src/main/help.c:327 src/main/help.c:357 src/main/help.c:369
-#: src/main/help.c:379
+#: src/main/help.c:327 src/main/help.c:360 src/main/help.c:376
+#: src/main/help.c:386
 msgid "FILE"
 msgstr "SOUBOR"
 
@@ -218,70 +218,78 @@ msgid "use direct I/O to bypass cache"
 msgstr "použij přímý V/V k obejítí cache"
 
 #: src/main/help.c:355
+msgid "try to seek instead of writing null bytes"
+msgstr ""
+
+#: src/main/help.c:358
 msgid "discard input instead of writing to output"
 msgstr "zahoď vstup namísto zápisu na výstup"
 
-#: src/main/help.c:358
+#: src/main/help.c:361
 msgid "write all input to FILE before writing to output"
 msgstr "zapiš veškerý vstup do SOUBORu před výpisem na výstup"
 
-#: src/main/help.c:360
-msgid "PID[:FD]"
-msgstr "PID[:DS]"
+#: src/main/help.c:364
+msgid "PID[:FD]|=NAME|@LISTFILE"
+msgstr ""
 
-#: src/main/help.c:361
+#: src/main/help.c:365
 msgid "watch file FD opened by process PID"
 msgstr "sleduj soubor DS otevřený procesem PID"
 
-#: src/main/help.c:364
+#: src/main/help.c:368 src/main/help.c:371
 msgid "PID"
 msgstr "PID"
 
-#: src/main/help.c:365
+#: src/main/help.c:369
 msgid "update settings of process PID"
 msgstr "aktualizuj nastavení procesu PID"
 
-#: src/main/help.c:370
+#: src/main/help.c:372
+msgid "show progress of process PID"
+msgstr ""
+
+#: src/main/help.c:377
 msgid "save process ID in FILE"
 msgstr "ulož id procesu do SOUBORu"
 
-#: src/main/help.c:373
+#: src/main/help.c:380
 msgid "show this help and exit"
 msgstr "ukaž pomoc a skonči"
 
-#: src/main/help.c:376
+#: src/main/help.c:383
 msgid "show version information and exit"
 msgstr "ukaž informace o verzi a skonči"
 
-#: src/main/help.c:380
+#: src/main/help.c:387
 msgid "write debug logs to FILE"
 msgstr "zapiš ladící záznamy do SOUBORu"
 
-#: src/main/help.c:406
+#: src/main/help.c:413
 #, c-format
 msgid "Usage: %s [OPTION] [FILE]..."
 msgstr "Použití: %s [VOLBY] [SOUBOR]..."
 
-#: src/main/help.c:417
+#: src/main/help.c:424
 msgid ""
 "Concatenate FILE(s), or standard input, to standard output, with monitoring."
 msgstr ""
 "Spoj SOUBOR(y) nebo standardní vstup na standardního výstup, s monitoringem."
 
-#: src/main/help.c:555
+#: src/main/help.c:562
 msgid "Supported format sequences:"
 msgstr ""
 
-#: src/main/help.c:569
+#: src/main/help.c:576
 #, c-format
 msgid "Please report any bugs to: %s"
 msgstr "Prosím, hlašte veškeré chyby na: %s"
 
-#: src/main/main.c:232
+#: src/main/main.c:228
 msgid "(input)"
 msgstr "(vstup)"
 
-#: src/main/main.c:334
+#: src/main/main.c:330
 msgid "state allocation failed"
 msgstr "selhala alokace stavu"
 
@@ -289,11 +297,11 @@ msgstr "selhala alokace stavu"
 msgid "list files may not contain @ lines"
 msgstr ""
 
-#: src/main/options.c:391 src/main/options.c:393 src/main/options.c:802
+#: src/main/options.c:391 src/main/options.c:393 src/main/options.c:807
 msgid "process ID or pid:fd pair expected"
 msgstr "očekáváno ID procesu nebo dvojice PID:DS"
 
-#: src/main/options.c:403 src/main/options.c:405 src/main/options.c:809
+#: src/main/options.c:403 src/main/options.c:405 src/main/options.c:814
 msgid "invalid process ID"
 msgstr "neplatné ID procesu"
 
@@ -321,45 +329,45 @@ msgstr "selhalo otevření blokového zařízení"
 msgid "failed to determine size of block device"
 msgstr "selhalo zjištění velikosti blokového zařízení"
 
-#: src/main/options.c:649
+#: src/main/options.c:652
 msgid "option structure allocation failed"
 msgstr "selhala alokace struktury pro volby"
 
-#: src/main/options.c:668
+#: src/main/options.c:671
 msgid "option structure argv allocation failed"
 msgstr "selhala alokace struktury pro argv"
 
-#: src/main/options.c:720
+#: src/main/options.c:723
 msgid "numeric value not understood"
 msgstr ""
 
-#: src/main/options.c:738
+#: src/main/options.c:743
 msgid "integer argument expected"
 msgstr "očekáván celočíselný argument"
 
-#: src/main/options.c:750
+#: src/main/options.c:755
 msgid "numeric argument expected"
 msgstr "očekáván číselný argument"
 
-#: src/main/options.c:762
+#: src/main/options.c:767
 msgid "missing filename"
 msgstr ""
 
-#: src/main/options.c:790
+#: src/main/options.c:795
 msgid "missing process name"
 msgstr ""
 
-#: src/main/options.c:1042
+#: src/main/options.c:1056
 #, c-format
 msgid "Try `%s --help' for more information."
 msgstr "Zkuste `%s --help' pro více informací."
 
-#: src/main/options.c:1044
+#: src/main/options.c:1058
 #, c-format
 msgid "Try `%s -h' for more information."
 msgstr "Zkuste `%s --h' pro více informací."
 
-#: src/main/options.c:1075
+#: src/main/options.c:1089
 msgid ""
 "cannot use line mode or transfer modifier options when watching file "
 "descriptors"
@@ -367,29 +375,33 @@ msgstr ""
 "při sledování deskriptorů souborů nelze použít řádkový mód nebo volby pro "
 "modifikaci přenosu"
 
-#: src/main/options.c:1084
+#: src/main/options.c:1098
 msgid "cannot use cursor positioning when watching file descriptors"
 msgstr "při sledování deskriptorů souborů nelze pozicování kurzoru použít"
 
-#: src/main/options.c:1093
+#: src/main/options.c:1107
 msgid "cannot use remote control when watching file descriptors"
 msgstr "při sledování deskriptorů souborů nelze použít vzdálené ovládání"
 
-#: src/main/options.c:1102
+#: src/main/options.c:1116
+msgid "cannot use remote query when watching file descriptors"
+msgstr ""
+
+#: src/main/options.c:1125
 msgid "cannot transfer files when watching file descriptors"
 msgstr "při sledování deskriptorů souborů nelze použít přenos souborů"
 
-#: src/main/options.c:1127
+#: src/main/options.c:1150
 msgid "not available on systems without /proc/self/fdinfo"
 msgstr "není dostupné na systémech bez /proc/self/fdinfo"
 
-#: src/main/remote.c:309
-msgid "message not received"
-msgstr "zpráva nepřijata"
+#: src/main/options.c:1162
+msgid "cannot use remote control and remote query together"
+msgstr ""
 
-#: src/main/remote.c:444
-msgid "SA_SIGINFO not supported on this system"
-msgstr "SA_SIGINFO není na tomto systému podporováno"
+#: src/main/options.c:1189
+msgid "files cannot be specified with this option"
+msgstr ""
 
 #: src/main/version.c:28
 msgid "License: GPLv3+ <https://www.gnu.org/licenses/gpl-3.0.html>"
@@ -431,7 +443,7 @@ msgstr "yzafpnum kMGTPEZY"
 msgid "yzafpnum KMGTPEZY"
 msgstr "yzafpnum KMGTPEZY"
 
-#: src/pv/display.c:1053 src/pv/loop.c:747 src/pv/transfer.c:1083
+#: src/pv/display.c:1053 src/pv/state.c:842 src/pv/transfer.c:1135
 msgid "buffer allocation failed"
 msgstr "selhala alokace vyrovnávací paměti"
 
@@ -464,7 +476,7 @@ msgid "(stdin)"
 msgstr "(stdin)"
 
 #: src/pv/format/averagerate.c:34 src/pv/format/progressbar.c:92
-#: src/pv/format/rate.c:36 src/pv/loop.c:565
+#: src/pv/format/rate.c:36 src/pv/loop.c:121
 msgid "b/s"
 msgstr "b/s"
 
@@ -474,7 +486,7 @@ msgid "/s"
 msgstr "/s"
 
 #: src/pv/format/averagerate.c:38 src/pv/format/progressbar.c:96
-#: src/pv/format/rate.c:40 src/pv/loop.c:565
+#: src/pv/format/rate.c:40 src/pv/loop.c:121
 msgid "B/s"
 msgstr "B/s"
 
@@ -494,48 +506,44 @@ msgstr "ETA"
 msgid "FIN"
 msgstr "FIN"
 
-#: src/pv/loop.c:564
+#: src/pv/loop.c:120
 msgid "rate min/avg/max/mdev"
 msgstr "rychlost min/avg/max/std"
 
-#: src/pv/loop.c:576
+#: src/pv/loop.c:132
 msgid "rate not measured"
 msgstr "rychlost neměřena"
 
-#: src/pv/loop.c:768 src/pv/loop.c:784 src/pv/loop.c:802 src/pv/watchpid.c:99
-#: src/pv/watchpid.c:108 src/pv/watchpid.c:119 src/pv/watchpid.c:127
-#: src/pv/watchpid.c:164 src/pv/watchpid.c:183 src/pv/watchpid.c:191
-#: src/pv/watchpid.c:201 src/pv/watchpid.c:299 src/pv/watchpid.c:307
-#: src/pv/watchpid.c:439 src/pv/watchpid.c:462
+#: src/pv/loop.c:802 src/pv/loop.c:818 src/pv/loop.c:836 src/pv/watchpid.c:101
+#: src/pv/watchpid.c:110 src/pv/watchpid.c:121 src/pv/watchpid.c:129
+#: src/pv/watchpid.c:166 src/pv/watchpid.c:185 src/pv/watchpid.c:193
+#: src/pv/watchpid.c:203 src/pv/watchpid.c:307 src/pv/watchpid.c:315
+#: src/pv/watchpid.c:447 src/pv/watchpid.c:470
 msgid "pid"
 msgstr "pid"
 
-#: src/pv/loop.c:802 src/pv/watchpid.c:108 src/pv/watchpid.c:120
-#: src/pv/watchpid.c:129 src/pv/watchpid.c:183 src/pv/watchpid.c:192
-#: src/pv/watchpid.c:203
+#: src/pv/loop.c:836 src/pv/watchpid.c:110 src/pv/watchpid.c:122
+#: src/pv/watchpid.c:131 src/pv/watchpid.c:185 src/pv/watchpid.c:194
+#: src/pv/watchpid.c:205
 msgid "fd"
 msgstr "ds"
 
+#: src/pv/remote.c:237 src/pv/remote.c:622
+msgid "message not received"
+msgstr "zpráva nepřijata"
+
+#: src/pv/remote.c:644 src/pv/remote.c:662
+msgid "SA_SIGINFO not supported on this system"
+msgstr "SA_SIGINFO není na tomto systému podporováno"
+
 #: src/pv/state.c:42
 msgid "history structure allocation failed"
 msgstr "selhala alokace struktury historie"
 
-#: src/pv/state.c:685 src/pv/state.c:697
+#: src/pv/state.c:794 src/pv/state.c:806
 msgid "file list allocation failed"
 msgstr "selhala alokace seznamu souborů"
 
-#: src/pv/state.c:731
-#, fuzzy
-#| msgid "file list allocation failed"
-msgid "process list allocation failed"
-msgstr "selhala alokace seznamu souborů"
-
-#: src/pv/state.c:739
-#, fuzzy
-#| msgid "file list allocation failed"
-msgid "file descriptor list allocation failed"
-msgstr "selhala alokace seznamu souborů"
-
 #: src/pv/transfer.c:490
 msgid "read failed"
 msgstr "čtení selhalo"
@@ -556,30 +564,33 @@ msgstr "selhal skok za chybu"
 msgid "skipped past read error"
 msgstr "chyba přeskočena"
 
-#: src/pv/transfer.c:660
+#: src/pv/transfer.c:663
 msgid "no transfer buffer allocated"
 msgstr "vyrovnávací paměť není alokována"
 
-#: src/pv/transfer.c:702
+#: src/pv/transfer.c:751
 msgid "failed to set interval timer"
 msgstr "selhalo nastavení intervalového časovače"
 
-#: src/pv/transfer.c:728
+#: src/pv/transfer.c:777
 msgid "failed to clear interval timer"
 msgstr "selhalo vynulování intervalového časovače"
 
-#: src/pv/transfer.c:770
+#: src/pv/transfer.c:822
 msgid "line position buffer allocation failed"
 msgstr "selhala alokace vyrovnávací paměti pro pozici v řádcích"
 
-#: src/pv/transfer.c:944
+#: src/pv/transfer.c:996
 msgid "write failed"
 msgstr "zápis selhal"
 
-#: src/pv/transfer.c:1185
+#: src/pv/transfer.c:1237
 msgid "select call failed"
 msgstr "selhalo volání select"
 
-#: src/pv/watchpid.c:129 src/pv/watchpid.c:203
+#: src/pv/watchpid.c:131 src/pv/watchpid.c:205
 msgid "not a regular file or block device"
 msgstr "není obyčejný soubor nebo blokové zařízení"
+
+#~ msgid "PID[:FD]"
+#~ msgstr "PID[:DS]"

po/de.po

@@ -1,7 +1,7 @@
 msgid ""
 msgstr ""
 "Report-Msgid-Bugs-To: https://codeberg.org/ivarch/pv/issues\n"
-"POT-Creation-Date: 2025-10-11 16:00+0100\n"
+"POT-Creation-Date: 2025-11-21 23:45+0000\n"
 "PO-Revision-Date: 2025-01-14 20:39+0000\n"
 "Last-Translator: Benny <benny@users.noreply.translate.codeberg.org>\n"
 "Language-Team: German <https://translate.codeberg.org/projects/pv/pv/de/>\n"
@@ -185,8 +185,8 @@ msgstr ""
 msgid "use cursor positioning escape sequences"
 msgstr "benutze Escape-Sequenzen zur Cursor-Positionierung"
 
-#: src/main/help.c:327 src/main/help.c:357 src/main/help.c:369
-#: src/main/help.c:379
+#: src/main/help.c:327 src/main/help.c:360 src/main/help.c:376
+#: src/main/help.c:386
 msgid "FILE"
 msgstr "DATEI"
 
@@ -235,71 +235,79 @@ msgid "use direct I/O to bypass cache"
 msgstr "verwende direkte E/A, um den Cache zu umgehen"
 
 #: src/main/help.c:355
+msgid "try to seek instead of writing null bytes"
+msgstr ""
+
+#: src/main/help.c:358
 msgid "discard input instead of writing to output"
 msgstr "verwirf die Eingabe anstatt in die Ausgabe zu schreiben"
 
-#: src/main/help.c:358
+#: src/main/help.c:361
 msgid "write all input to FILE before writing to output"
 msgstr "Ausgabe nach FILE schrieben bevor sie ausgegeben wird"
 
-#: src/main/help.c:360
-msgid "PID[:FD]"
-msgstr "PID[:FD]"
+#: src/main/help.c:364
+msgid "PID[:FD]|=NAME|@LISTFILE"
+msgstr ""
 
-#: src/main/help.c:361
+#: src/main/help.c:365
 msgid "watch file FD opened by process PID"
 msgstr "die vom Prozess PID geöffnete Datei FD beobachten"
 
-#: src/main/help.c:364
+#: src/main/help.c:368 src/main/help.c:371
 msgid "PID"
 msgstr "PID"
 
-#: src/main/help.c:365
+#: src/main/help.c:369
 msgid "update settings of process PID"
 msgstr "Einstellungen der Prozess-PID updaten"
 
-#: src/main/help.c:370
+#: src/main/help.c:372
+msgid "show progress of process PID"
+msgstr ""
+
+#: src/main/help.c:377
 msgid "save process ID in FILE"
 msgstr "Prozess-ID in DATEI speichern"
 
-#: src/main/help.c:373
+#: src/main/help.c:380
 msgid "show this help and exit"
 msgstr "zeige diese Hilfe und beende"
 
-#: src/main/help.c:376
+#: src/main/help.c:383
 msgid "show version information and exit"
 msgstr "zeige Versionsinformationen und beende"
 
-#: src/main/help.c:380
+#: src/main/help.c:387
 msgid "write debug logs to FILE"
 msgstr "schreibe Debug-Protokolle in DATEI"
 
-#: src/main/help.c:406
+#: src/main/help.c:413
 #, c-format
 msgid "Usage: %s [OPTION] [FILE]..."
 msgstr "Aufruf: %s [OPTION] [DATEI]..."
 
-#: src/main/help.c:417
+#: src/main/help.c:424
 msgid ""
 "Concatenate FILE(s), or standard input, to standard output, with monitoring."
 msgstr ""
 "Verbindet DATEI(en) oder den Standard-Eingabe-Kanal mit dem Standard-Ausgabe-"
 "Kanal und misst den Datenstrom."
 
-#: src/main/help.c:555
+#: src/main/help.c:562
 msgid "Supported format sequences:"
 msgstr "unterstützte Formate:"
 
-#: src/main/help.c:569
+#: src/main/help.c:576
 #, c-format
 msgid "Please report any bugs to: %s"
 msgstr "Bitte senden Sie Fehlerberichte an %s"
 
-#: src/main/main.c:232
+#: src/main/main.c:228
 msgid "(input)"
 msgstr "(eingabe)"
 
-#: src/main/main.c:334
+#: src/main/main.c:330
 msgid "state allocation failed"
 msgstr "Speicherzuweisung für `state' fehlgeschlagen"
 
@@ -307,11 +315,11 @@ msgstr "Speicherzuweisung für `state' fehlgeschlagen"
 msgid "list files may not contain @ lines"
 msgstr ""
 
-#: src/main/options.c:391 src/main/options.c:393 src/main/options.c:802
+#: src/main/options.c:391 src/main/options.c:393 src/main/options.c:807
 msgid "process ID or pid:fd pair expected"
 msgstr "Prozess-ID oder PID:FD-Paar erwartet"
 
-#: src/main/options.c:403 src/main/options.c:405 src/main/options.c:809
+#: src/main/options.c:403 src/main/options.c:405 src/main/options.c:814
 msgid "invalid process ID"
 msgstr "ungültige Prozess-ID"
 
@@ -339,45 +347,45 @@ msgstr "konnte Blockgerät nicht öffnen"
 msgid "failed to determine size of block device"
 msgstr "konnte Größe des Blockgeräts nicht ermitteln"
 
-#: src/main/options.c:649
+#: src/main/options.c:652
 msgid "option structure allocation failed"
 msgstr "Speicherzuweisung für `option' fehlgeschlagen"
 
-#: src/main/options.c:668
+#: src/main/options.c:671
 msgid "option structure argv allocation failed"
 msgstr "Speicherzuweisung für `argv' der Option fehlgeschlagen"
 
-#: src/main/options.c:720
+#: src/main/options.c:723
 msgid "numeric value not understood"
 msgstr "numerischen Wert nicht verstanden"
 
-#: src/main/options.c:738
+#: src/main/options.c:743
 msgid "integer argument expected"
 msgstr "Ganzzahliges Argument erwartet"
 
-#: src/main/options.c:750
+#: src/main/options.c:755
 msgid "numeric argument expected"
 msgstr "numerisches Argument erwartet"
 
-#: src/main/options.c:762
+#: src/main/options.c:767
 msgid "missing filename"
 msgstr ""
 
-#: src/main/options.c:790
+#: src/main/options.c:795
 msgid "missing process name"
 msgstr ""
 
-#: src/main/options.c:1042
+#: src/main/options.c:1056
 #, c-format
 msgid "Try `%s --help' for more information."
 msgstr "`%s --help' zeigt weitere Informationen an."
 
-#: src/main/options.c:1044
+#: src/main/options.c:1058
 #, c-format
 msgid "Try `%s -h' for more information."
 msgstr "`%s -h' zeigt weitere Informationen an."
 
-#: src/main/options.c:1075
+#: src/main/options.c:1089
 msgid ""
 "cannot use line mode or transfer modifier options when watching file "
 "descriptors"
@@ -385,34 +393,38 @@ msgstr ""
 "Beim Beobachten von Dateideskriptoren können keine Optionen für den "
 "Zeilenmodus oder den Übertragungsmodifikator verwendet werden"
 
-#: src/main/options.c:1084
+#: src/main/options.c:1098
 msgid "cannot use cursor positioning when watching file descriptors"
 msgstr ""
 "Beim Beobachten von Dateideskriptoren kann Cursor-Positionierung nicht "
 "verwendet werden"
 
-#: src/main/options.c:1093
+#: src/main/options.c:1107
 msgid "cannot use remote control when watching file descriptors"
 msgstr ""
 "Beim Beobachten von Dateideskriptoren kann die Fernbedienung nicht verwenden "
 "werden"
 
-#: src/main/options.c:1102
+#: src/main/options.c:1116
+msgid "cannot use remote query when watching file descriptors"
+msgstr ""
+
+#: src/main/options.c:1125
 msgid "cannot transfer files when watching file descriptors"
 msgstr ""
 "Beim Beobachten von Dateideskriptoren können Dateien nicht übertragen werden"
 
-#: src/main/options.c:1127
+#: src/main/options.c:1150
 msgid "not available on systems without /proc/self/fdinfo"
 msgstr "Nicht verfügbar auf Systemen ohne /proc/self/fdinfo"
 
-#: src/main/remote.c:309
-msgid "message not received"
-msgstr "Nachricht nicht empfangen"
+#: src/main/options.c:1162
+msgid "cannot use remote control and remote query together"
+msgstr ""
 
-#: src/main/remote.c:444
-msgid "SA_SIGINFO not supported on this system"
-msgstr "SA_SIGINFO wird auf diesem System nicht unterstützt"
+#: src/main/options.c:1189
+msgid "files cannot be specified with this option"
+msgstr ""
 
 #: src/main/version.c:28
 msgid "License: GPLv3+ <https://www.gnu.org/licenses/gpl-3.0.html>"
@@ -454,7 +466,7 @@ msgstr "yzafpnµm kMGTPEZY"
 msgid "yzafpnum KMGTPEZY"
 msgstr "yzafpnµm KMGTPEZY"
 
-#: src/pv/display.c:1053 src/pv/loop.c:747 src/pv/transfer.c:1083
+#: src/pv/display.c:1053 src/pv/state.c:842 src/pv/transfer.c:1135
 msgid "buffer allocation failed"
 msgstr "Speicherzuweisung für den Puffer fehlgeschlagen"
 
@@ -487,7 +499,7 @@ msgid "(stdin)"
 msgstr "(stdin)"
 
 #: src/pv/format/averagerate.c:34 src/pv/format/progressbar.c:92
-#: src/pv/format/rate.c:36 src/pv/loop.c:565
+#: src/pv/format/rate.c:36 src/pv/loop.c:121
 msgid "b/s"
 msgstr "b/s"
 
@@ -497,7 +509,7 @@ msgid "/s"
 msgstr "/s"
 
 #: src/pv/format/averagerate.c:38 src/pv/format/progressbar.c:96
-#: src/pv/format/rate.c:40 src/pv/loop.c:565
+#: src/pv/format/rate.c:40 src/pv/loop.c:121
 msgid "B/s"
 msgstr "B/s"
 
@@ -517,48 +529,44 @@ msgstr "ETA"
 msgid "FIN"
 msgstr "Endzeit"
 
-#: src/pv/loop.c:564
+#: src/pv/loop.c:120
 msgid "rate min/avg/max/mdev"
 msgstr "Rate min/mittel/max/abweichung"
 
-#: src/pv/loop.c:576
+#: src/pv/loop.c:132
 msgid "rate not measured"
 msgstr "Übertragungsrate nicht gemessen"
 
-#: src/pv/loop.c:768 src/pv/loop.c:784 src/pv/loop.c:802 src/pv/watchpid.c:99
-#: src/pv/watchpid.c:108 src/pv/watchpid.c:119 src/pv/watchpid.c:127
-#: src/pv/watchpid.c:164 src/pv/watchpid.c:183 src/pv/watchpid.c:191
-#: src/pv/watchpid.c:201 src/pv/watchpid.c:299 src/pv/watchpid.c:307
-#: src/pv/watchpid.c:439 src/pv/watchpid.c:462
+#: src/pv/loop.c:802 src/pv/loop.c:818 src/pv/loop.c:836 src/pv/watchpid.c:101
+#: src/pv/watchpid.c:110 src/pv/watchpid.c:121 src/pv/watchpid.c:129
+#: src/pv/watchpid.c:166 src/pv/watchpid.c:185 src/pv/watchpid.c:193
+#: src/pv/watchpid.c:203 src/pv/watchpid.c:307 src/pv/watchpid.c:315
+#: src/pv/watchpid.c:447 src/pv/watchpid.c:470
 msgid "pid"
 msgstr "pid"
 
-#: src/pv/loop.c:802 src/pv/watchpid.c:108 src/pv/watchpid.c:120
-#: src/pv/watchpid.c:129 src/pv/watchpid.c:183 src/pv/watchpid.c:192
-#: src/pv/watchpid.c:203
+#: src/pv/loop.c:836 src/pv/watchpid.c:110 src/pv/watchpid.c:122
+#: src/pv/watchpid.c:131 src/pv/watchpid.c:185 src/pv/watchpid.c:194
+#: src/pv/watchpid.c:205
 msgid "fd"
 msgstr "fd"
 
+#: src/pv/remote.c:237 src/pv/remote.c:622
+msgid "message not received"
+msgstr "Nachricht nicht empfangen"
+
+#: src/pv/remote.c:644 src/pv/remote.c:662
+msgid "SA_SIGINFO not supported on this system"
+msgstr "SA_SIGINFO wird auf diesem System nicht unterstützt"
+
 #: src/pv/state.c:42
 msgid "history structure allocation failed"
 msgstr "Speicherzuweisung für `history' fehlgeschlagen"
 
-#: src/pv/state.c:685 src/pv/state.c:697
+#: src/pv/state.c:794 src/pv/state.c:806
 msgid "file list allocation failed"
 msgstr "Speicherzuweisung für die Dateiliste fehlgeschlagen"
 
-#: src/pv/state.c:731
-#, fuzzy
-#| msgid "file list allocation failed"
-msgid "process list allocation failed"
-msgstr "Speicherzuweisung für die Dateiliste fehlgeschlagen"
-
-#: src/pv/state.c:739
-#, fuzzy
-#| msgid "file list allocation failed"
-msgid "file descriptor list allocation failed"
-msgstr "Speicherzuweisung für die Dateiliste fehlgeschlagen"
-
 #: src/pv/transfer.c:490
 msgid "read failed"
 msgstr "read-Aufruf fehlgeschlagen"
@@ -579,30 +587,33 @@ msgstr "konnte den Fehler nicht überwinden"
 msgid "skipped past read error"
 msgstr "über den Lesefehler hinaus verschoben"
 
-#: src/pv/transfer.c:660
+#: src/pv/transfer.c:663
 msgid "no transfer buffer allocated"
 msgstr "Speicherzuweisung für den Transferpuffer fehlgeschlagen"
 
-#: src/pv/transfer.c:702
+#: src/pv/transfer.c:751
 msgid "failed to set interval timer"
 msgstr "konnte Intervall-Timer nicht setzen"
 
-#: src/pv/transfer.c:728
+#: src/pv/transfer.c:777
 msgid "failed to clear interval timer"
 msgstr "konnte Intervall-Timer nicht löschen"
 
-#: src/pv/transfer.c:770
+#: src/pv/transfer.c:822
 msgid "line position buffer allocation failed"
 msgstr "Zuweisung des Zeilenpuffers fehlgeschlagen"
 
-#: src/pv/transfer.c:944
+#: src/pv/transfer.c:996
 msgid "write failed"
 msgstr "write-Aufruf fehlgeschlagen"
 
-#: src/pv/transfer.c:1185
+#: src/pv/transfer.c:1237
 msgid "select call failed"
 msgstr "select-Aufruf fehlgeschlagen"
 
-#: src/pv/watchpid.c:129 src/pv/watchpid.c:203
+#: src/pv/watchpid.c:131 src/pv/watchpid.c:205
 msgid "not a regular file or block device"
 msgstr "ist weder eine normale Datei noch ein Blockgerät"
+
+#~ msgid "PID[:FD]"
+#~ msgstr "PID[:FD]"

po/es.po

@@ -1,7 +1,7 @@
 msgid ""
 msgstr ""
 "Report-Msgid-Bugs-To: https://codeberg.org/ivarch/pv/issues\n"
-"POT-Creation-Date: 2025-10-11 16:00+0100\n"
+"POT-Creation-Date: 2025-11-21 23:45+0000\n"
 "Language: es\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
@@ -163,8 +163,8 @@ msgstr ""
 msgid "use cursor positioning escape sequences"
 msgstr ""
 
-#: src/main/help.c:327 src/main/help.c:357 src/main/help.c:369
-#: src/main/help.c:379
+#: src/main/help.c:327 src/main/help.c:360 src/main/help.c:376
+#: src/main/help.c:386
 msgid "FILE"
 msgstr ""
 
@@ -213,69 +213,77 @@ msgid "use direct I/O to bypass cache"
 msgstr ""
 
 #: src/main/help.c:355
-msgid "discard input instead of writing to output"
+msgid "try to seek instead of writing null bytes"
 msgstr ""
 
 #: src/main/help.c:358
-msgid "write all input to FILE before writing to output"
-msgstr ""
-
-#: src/main/help.c:360
-msgid "PID[:FD]"
+msgid "discard input instead of writing to output"
 msgstr ""
 
 #: src/main/help.c:361
-msgid "watch file FD opened by process PID"
+msgid "write all input to FILE before writing to output"
 msgstr ""
 
 #: src/main/help.c:364
-msgid "PID"
+msgid "PID[:FD]|=NAME|@LISTFILE"
 msgstr ""
 
 #: src/main/help.c:365
+msgid "watch file FD opened by process PID"
+msgstr ""
+
+#: src/main/help.c:368 src/main/help.c:371
+msgid "PID"
+msgstr ""
+
+#: src/main/help.c:369
 msgid "update settings of process PID"
 msgstr ""
 
-#: src/main/help.c:370
+#: src/main/help.c:372
+msgid "show progress of process PID"
+msgstr ""
+
+#: src/main/help.c:377
 msgid "save process ID in FILE"
 msgstr ""
 
-#: src/main/help.c:373
+#: src/main/help.c:380
 msgid "show this help and exit"
 msgstr ""
 
-#: src/main/help.c:376
+#: src/main/help.c:383
 msgid "show version information and exit"
 msgstr ""
 
-#: src/main/help.c:380
+#: src/main/help.c:387
 msgid "write debug logs to FILE"
 msgstr ""
 
-#: src/main/help.c:406
+#: src/main/help.c:413
 #, c-format
 msgid "Usage: %s [OPTION] [FILE]..."
 msgstr ""
 
-#: src/main/help.c:417
+#: src/main/help.c:424
 msgid ""
 "Concatenate FILE(s), or standard input, to standard output, with monitoring."
 msgstr ""
 
-#: src/main/help.c:555
+#: src/main/help.c:562
 msgid "Supported format sequences:"
 msgstr ""
 
-#: src/main/help.c:569
+#: src/main/help.c:576
 #, c-format
 msgid "Please report any bugs to: %s"
 msgstr ""
 
-#: src/main/main.c:232
+#: src/main/main.c:228
 msgid "(input)"
 msgstr ""
 
-#: src/main/main.c:334
+#: src/main/main.c:330
 msgid "state allocation failed"
 msgstr ""
 
@@ -283,11 +291,11 @@ msgstr ""
 msgid "list files may not contain @ lines"
 msgstr ""
 
-#: src/main/options.c:391 src/main/options.c:393 src/main/options.c:802
+#: src/main/options.c:391 src/main/options.c:393 src/main/options.c:807
 msgid "process ID or pid:fd pair expected"
 msgstr ""
 
-#: src/main/options.c:403 src/main/options.c:405 src/main/options.c:809
+#: src/main/options.c:403 src/main/options.c:405 src/main/options.c:814
 msgid "invalid process ID"
 msgstr ""
 
@@ -315,72 +323,76 @@ msgstr ""
 msgid "failed to determine size of block device"
 msgstr ""
 
-#: src/main/options.c:649
+#: src/main/options.c:652
 msgid "option structure allocation failed"
 msgstr ""
 
-#: src/main/options.c:668
+#: src/main/options.c:671
 msgid "option structure argv allocation failed"
 msgstr ""
 
-#: src/main/options.c:720
+#: src/main/options.c:723
 msgid "numeric value not understood"
 msgstr ""
 
-#: src/main/options.c:738
+#: src/main/options.c:743
 msgid "integer argument expected"
 msgstr ""
 
-#: src/main/options.c:750
+#: src/main/options.c:755
 msgid "numeric argument expected"
 msgstr ""
 
-#: src/main/options.c:762
+#: src/main/options.c:767
 msgid "missing filename"
 msgstr ""
 
-#: src/main/options.c:790
+#: src/main/options.c:795
 msgid "missing process name"
 msgstr ""
 
-#: src/main/options.c:1042
+#: src/main/options.c:1056
 #, c-format
 msgid "Try `%s --help' for more information."
 msgstr ""
 
-#: src/main/options.c:1044
+#: src/main/options.c:1058
 #, c-format
 msgid "Try `%s -h' for more information."
 msgstr ""
 
-#: src/main/options.c:1075
+#: src/main/options.c:1089
 msgid ""
 "cannot use line mode or transfer modifier options when watching file "
 "descriptors"
 msgstr ""
 
-#: src/main/options.c:1084
+#: src/main/options.c:1098
 msgid "cannot use cursor positioning when watching file descriptors"
 msgstr ""
 
-#: src/main/options.c:1093
+#: src/main/options.c:1107
 msgid "cannot use remote control when watching file descriptors"
 msgstr ""
 
-#: src/main/options.c:1102
+#: src/main/options.c:1116
+msgid "cannot use remote query when watching file descriptors"
+msgstr ""
+
+#: src/main/options.c:1125
 msgid "cannot transfer files when watching file descriptors"
 msgstr ""
 
-#: src/main/options.c:1127
+#: src/main/options.c:1150
 msgid "not available on systems without /proc/self/fdinfo"
 msgstr ""
 
-#: src/main/remote.c:309
-msgid "message not received"
+#: src/main/options.c:1162
+msgid "cannot use remote control and remote query together"
 msgstr ""
 
-#: src/main/remote.c:444
-msgid "SA_SIGINFO not supported on this system"
+#: src/main/options.c:1189
+msgid "files cannot be specified with this option"
 msgstr ""
 
 #: src/main/version.c:28
@@ -423,7 +435,7 @@ msgstr ""
 msgid "yzafpnum KMGTPEZY"
 msgstr ""
 
-#: src/pv/display.c:1053 src/pv/loop.c:747 src/pv/transfer.c:1083
+#: src/pv/display.c:1053 src/pv/state.c:842 src/pv/transfer.c:1135
 msgid "buffer allocation failed"
 msgstr ""
 
@@ -456,7 +468,7 @@ msgid "(stdin)"
 msgstr ""
 
 #: src/pv/format/averagerate.c:34 src/pv/format/progressbar.c:92
-#: src/pv/format/rate.c:36 src/pv/loop.c:565
+#: src/pv/format/rate.c:36 src/pv/loop.c:121
 msgid "b/s"
 msgstr ""
 
@@ -466,7 +478,7 @@ msgid "/s"
 msgstr ""
 
 #: src/pv/format/averagerate.c:38 src/pv/format/progressbar.c:96
-#: src/pv/format/rate.c:40 src/pv/loop.c:565
+#: src/pv/format/rate.c:40 src/pv/loop.c:121
 msgid "B/s"
 msgstr ""
 
@@ -486,44 +498,44 @@ msgstr ""
 msgid "FIN"
 msgstr ""
 
-#: src/pv/loop.c:564
+#: src/pv/loop.c:120
 msgid "rate min/avg/max/mdev"
 msgstr ""
 
-#: src/pv/loop.c:576
+#: src/pv/loop.c:132
 msgid "rate not measured"
 msgstr ""
 
-#: src/pv/loop.c:768 src/pv/loop.c:784 src/pv/loop.c:802 src/pv/watchpid.c:99
-#: src/pv/watchpid.c:108 src/pv/watchpid.c:119 src/pv/watchpid.c:127
-#: src/pv/watchpid.c:164 src/pv/watchpid.c:183 src/pv/watchpid.c:191
-#: src/pv/watchpid.c:201 src/pv/watchpid.c:299 src/pv/watchpid.c:307
-#: src/pv/watchpid.c:439 src/pv/watchpid.c:462
+#: src/pv/loop.c:802 src/pv/loop.c:818 src/pv/loop.c:836 src/pv/watchpid.c:101
+#: src/pv/watchpid.c:110 src/pv/watchpid.c:121 src/pv/watchpid.c:129
+#: src/pv/watchpid.c:166 src/pv/watchpid.c:185 src/pv/watchpid.c:193
+#: src/pv/watchpid.c:203 src/pv/watchpid.c:307 src/pv/watchpid.c:315
+#: src/pv/watchpid.c:447 src/pv/watchpid.c:470
 msgid "pid"
 msgstr ""
 
-#: src/pv/loop.c:802 src/pv/watchpid.c:108 src/pv/watchpid.c:120
-#: src/pv/watchpid.c:129 src/pv/watchpid.c:183 src/pv/watchpid.c:192
-#: src/pv/watchpid.c:203
+#: src/pv/loop.c:836 src/pv/watchpid.c:110 src/pv/watchpid.c:122
+#: src/pv/watchpid.c:131 src/pv/watchpid.c:185 src/pv/watchpid.c:194
+#: src/pv/watchpid.c:205
 msgid "fd"
 msgstr ""
 
+#: src/pv/remote.c:237 src/pv/remote.c:622
+msgid "message not received"
+msgstr ""
+
+#: src/pv/remote.c:644 src/pv/remote.c:662
+msgid "SA_SIGINFO not supported on this system"
+msgstr ""
+
 #: src/pv/state.c:42
 msgid "history structure allocation failed"
 msgstr ""
 
-#: src/pv/state.c:685 src/pv/state.c:697
+#: src/pv/state.c:794 src/pv/state.c:806
 msgid "file list allocation failed"
 msgstr ""
 
-#: src/pv/state.c:731
-msgid "process list allocation failed"
-msgstr ""
-
-#: src/pv/state.c:739
-msgid "file descriptor list allocation failed"
-msgstr ""
-
 #: src/pv/transfer.c:490
 msgid "read failed"
 msgstr ""
@@ -544,30 +556,30 @@ msgstr ""
 msgid "skipped past read error"
 msgstr ""
 
-#: src/pv/transfer.c:660
+#: src/pv/transfer.c:663
 msgid "no transfer buffer allocated"
 msgstr ""
 
-#: src/pv/transfer.c:702
+#: src/pv/transfer.c:751
 msgid "failed to set interval timer"
 msgstr ""
 
-#: src/pv/transfer.c:728
+#: src/pv/transfer.c:777
 msgid "failed to clear interval timer"
 msgstr ""
 
-#: src/pv/transfer.c:770
+#: src/pv/transfer.c:822
 msgid "line position buffer allocation failed"
 msgstr ""
 
-#: src/pv/transfer.c:944
+#: src/pv/transfer.c:996
 msgid "write failed"
 msgstr ""
 
-#: src/pv/transfer.c:1185
+#: src/pv/transfer.c:1237
 msgid "select call failed"
 msgstr ""
 
-#: src/pv/watchpid.c:129 src/pv/watchpid.c:203
+#: src/pv/watchpid.c:131 src/pv/watchpid.c:205
 msgid "not a regular file or block device"
 msgstr ""

po/fi.po

@@ -1,44 +1,45 @@
-#, fuzzy
 msgid ""
 msgstr ""
 "Project-Id-Version: pv 1.9.34\n"
 "Report-Msgid-Bugs-To: https://codeberg.org/ivarch/pv/issues\n"
-"POT-Creation-Date: 2025-10-11 16:00+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"
+"POT-Creation-Date: 2025-11-21 23:45+0000\n"
+"PO-Revision-Date: 2025-11-22 15:06+0000\n"
+"Last-Translator: artnay <artnay@noreply.codeberg.org>\n"
+"Language-Team: Finnish <https://translate.codeberg.org/projects/pv/pv/fi/>\n"
 "Language: fi\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
+"Plural-Forms: nplurals=2; plural=n != 1;\n"
+"X-Generator: Weblate 5.14\n"
 
 #: src/main/help.c:236
 msgid "show progress bar"
-msgstr ""
+msgstr "näytä edistymispalkki"
 
 #: src/main/help.c:239
 msgid "show elapsed time"
-msgstr ""
+msgstr "näytä kulunut aika"
 
 #: src/main/help.c:242
 msgid "show estimated time of arrival (completion)"
-msgstr ""
+msgstr "näytä arvioitu valmistumisaika"
 
 #: src/main/help.c:245
 msgid "show absolute estimated time of arrival (completion)"
-msgstr ""
+msgstr "näytä absoluuttinen arvioitu valmistumisaika"
 
 #: src/main/help.c:248
 msgid "show data transfer rate counter"
-msgstr ""
+msgstr "näytä datan siirtonopeuden laskuri"
 
 #: src/main/help.c:251
 msgid "show data transfer average rate counter"
-msgstr ""
+msgstr "näytä datan keskimääräisen siirtonopeuden laskuri"
 
 #: src/main/help.c:254
 msgid "show number of bytes transferred"
-msgstr ""
+msgstr "näytä siirrettyjen tavujen määrä"
 
 #: src/main/help.c:257
 msgid "show percentage of transfer buffer in use"
@@ -46,39 +47,39 @@ msgstr ""
 
 #: src/main/help.c:259
 msgid "NUM"
-msgstr ""
+msgstr "NUM"
 
 #: src/main/help.c:260
 msgid "show NUM bytes last written"
-msgstr ""
+msgstr "näytä NUM viimeksi kirjoitettua tavua"
 
 #: src/main/help.c:262
 msgid "FORMAT"
-msgstr ""
+msgstr "MUOTO"
 
 #: src/main/help.c:263
 msgid "set output format to FORMAT"
-msgstr ""
+msgstr "aseta tulostemuodoksi MUOTO"
 
 #: src/main/help.c:266
 msgid "output percentages, not visual information"
-msgstr ""
+msgstr "tulosta prosentit, ei visuaalista tietoa"
 
 #: src/main/help.c:269
 msgid "do not output any transfer information at all"
-msgstr ""
+msgstr "älä tulosta minkäänlaista siirtotietoa"
 
 #: src/main/help.c:273
 msgid "show number of bits transferred"
-msgstr ""
+msgstr "näytä siirrettyjen bittien määrä"
 
 #: src/main/help.c:276
 msgid "treat suffixes as multiples of 1000 rather than 1024"
-msgstr ""
+msgstr "käsittele päätteitä 1000:n kertoimina 1024:n sijaan"
 
 #: src/main/help.c:279
 msgid "display nothing until first byte transferred"
-msgstr ""
+msgstr "älä näytä mitään, ennen kuin ensimmäinen tavu on siirretty"
 
 #: src/main/help.c:281 src/main/help.c:296 src/main/help.c:299
 msgid "SEC"
@@ -86,15 +87,15 @@ msgstr ""
 
 #: src/main/help.c:282
 msgid "display nothing until SEC seconds have passed"
-msgstr ""
+msgstr "älä näytä mitään, ennen kuin SEC sekuntia on kulunut"
 
 #: src/main/help.c:284
 msgid "SIZE"
-msgstr ""
+msgstr "KOKO"
 
 #: src/main/help.c:285
 msgid "set estimated data size to SIZE bytes"
-msgstr ""
+msgstr "aseta arvioiduksi datan kooksi KOKO tavua"
 
 #: src/main/help.c:288
 msgid "if size unknown, show rate vs max rate"
@@ -102,7 +103,7 @@ msgstr ""
 
 #: src/main/help.c:291
 msgid "count lines instead of bytes"
-msgstr ""
+msgstr "laske rivit tavujen sijaan"
 
 #: src/main/help.c:294
 msgid "lines are null-terminated"
@@ -110,31 +111,31 @@ msgstr ""
 
 #: src/main/help.c:297
 msgid "update every SEC seconds"
-msgstr ""
+msgstr "päivitä SEC sekunnin välein"
 
 #: src/main/help.c:300
 msgid "compute average rate over past SEC seconds (default 30s)"
-msgstr ""
+msgstr "laske keskimääräinen siirtonopeus SEC sekunnin ajalta (oletus 30 s)"
 
 #: src/main/help.c:302
 msgid "WIDTH"
-msgstr ""
+msgstr "LEVEYS"
 
 #: src/main/help.c:303
 msgid "assume terminal is WIDTH characters wide"
-msgstr ""
+msgstr "oleta, että päätteen LEVEYS on merkkiä leveä"
 
 #: src/main/help.c:305
 msgid "HEIGHT"
-msgstr ""
+msgstr "KORKEUS"
 
 #: src/main/help.c:306
 msgid "assume terminal is HEIGHT rows high"
-msgstr ""
+msgstr "oleta, että päätteen KORKEUS on merkkiä korkea"
 
 #: src/main/help.c:308
 msgid "NAME"
-msgstr ""
+msgstr "NIMI"
 
 #: src/main/help.c:309
 msgid "prefix visual information with NAME"
@@ -142,7 +143,7 @@ msgstr ""
 
 #: src/main/help.c:311
 msgid "STYLE"
-msgstr ""
+msgstr "TYYLI"
 
 #: src/main/help.c:312
 msgid "set default bar style to NAME"
@@ -158,7 +159,7 @@ msgstr ""
 
 #: src/main/help.c:318
 msgid "output transfer statistics at the end"
-msgstr ""
+msgstr "tulosta siirtotilastot lopussa"
 
 #: src/main/help.c:321
 msgid "output even if standard error is not a terminal"
@@ -168,22 +169,22 @@ msgstr ""
 msgid "use cursor positioning escape sequences"
 msgstr ""
 
-#: src/main/help.c:327 src/main/help.c:357 src/main/help.c:369
-#: src/main/help.c:379
+#: src/main/help.c:327 src/main/help.c:360 src/main/help.c:376
+#: src/main/help.c:386
 msgid "FILE"
-msgstr ""
+msgstr "TIEDOSTO"
 
 #: src/main/help.c:328
 msgid "write output to FILE instead of stdout"
-msgstr ""
+msgstr "kirjoita tuloste tiedostoon TIEDOSTO oletustulosteen (stdout) sijaan"
 
 #: src/main/help.c:330
 msgid "RATE"
-msgstr ""
+msgstr "NOPEUS"
 
 #: src/main/help.c:331
 msgid "limit transfer to RATE bytes per second"
-msgstr ""
+msgstr "rajoita siirron nopeudeksi NOPEUS tavua per sekunti"
 
 #: src/main/help.c:333 src/main/help.c:342
 msgid "BYTES"
@@ -199,7 +200,7 @@ msgstr ""
 
 #: src/main/help.c:340
 msgid "skip read errors in input"
-msgstr ""
+msgstr "ohita lukuvirheet syötteessä"
 
 #: src/main/help.c:343
 msgid "skip errors in BYTES blocks at a time"
@@ -207,7 +208,7 @@ msgstr ""
 
 #: src/main/help.c:346
 msgid "stop after --size bytes have been transferred"
-msgstr ""
+msgstr "lopeta kun --size tavua on siirretty"
 
 #: src/main/help.c:349
 msgid "flush cache to disk after every write"
@@ -218,69 +219,79 @@ msgid "use direct I/O to bypass cache"
 msgstr ""
 
 #: src/main/help.c:355
-msgid "discard input instead of writing to output"
+msgid "try to seek instead of writing null bytes"
 msgstr ""
 
 #: src/main/help.c:358
-msgid "write all input to FILE before writing to output"
-msgstr ""
-
-#: src/main/help.c:360
-msgid "PID[:FD]"
+msgid "discard input instead of writing to output"
 msgstr ""
 
 #: src/main/help.c:361
-msgid "watch file FD opened by process PID"
+msgid "write all input to FILE before writing to output"
 msgstr ""
+"kirjoita kaikki syöte tiedostoon TIEDOSTO ennen tulosteeseen kirjoittamista"
 
 #: src/main/help.c:364
-msgid "PID"
+msgid "PID[:FD]|=NAME|@LISTFILE"
 msgstr ""
 
 #: src/main/help.c:365
+msgid "watch file FD opened by process PID"
+msgstr ""
+
+#: src/main/help.c:368 src/main/help.c:371
+msgid "PID"
+msgstr ""
+
+#: src/main/help.c:369
 msgid "update settings of process PID"
 msgstr ""
 
-#: src/main/help.c:370
+#: src/main/help.c:372
+msgid "show progress of process PID"
+msgstr ""
+
+#: src/main/help.c:377
 msgid "save process ID in FILE"
 msgstr ""
 
-#: src/main/help.c:373
-msgid "show this help and exit"
-msgstr ""
-
-#: src/main/help.c:376
-msgid "show version information and exit"
-msgstr ""
-
 #: src/main/help.c:380
-msgid "write debug logs to FILE"
-msgstr ""
+msgid "show this help and exit"
+msgstr "näytä tämä ohje ja lopeta"
 
-#: src/main/help.c:406
+#: src/main/help.c:383
+msgid "show version information and exit"
+msgstr "näytä versiotiedot ja lopeta"
+
+#: src/main/help.c:387
+msgid "write debug logs to FILE"
+msgstr "kirjoita vianjäljityslokit tiedostoon TIEDOSTO"
+
+#: src/main/help.c:413
 #, c-format
 msgid "Usage: %s [OPTION] [FILE]..."
-msgstr ""
+msgstr "Käyttö: %s [VALINTA] [TIEDOSTO]..."
 
-#: src/main/help.c:417
+#: src/main/help.c:424
 msgid ""
 "Concatenate FILE(s), or standard input, to standard output, with monitoring."
 msgstr ""
+"Putkita TIEDOSTO(t), tai vakiosyöte, vakiotulosteeseen, monitoroinnin kanssa."
 
-#: src/main/help.c:555
+#: src/main/help.c:562
 msgid "Supported format sequences:"
-msgstr ""
+msgstr "Tuetut muotosekvenssit:"
 
-#: src/main/help.c:569
+#: src/main/help.c:576
 #, c-format
 msgid "Please report any bugs to: %s"
-msgstr ""
+msgstr "Ilmoita ongelmista: %s"
 
-#: src/main/main.c:232
+#: src/main/main.c:228
 msgid "(input)"
 msgstr ""
 
-#: src/main/main.c:334
+#: src/main/main.c:330
 msgid "state allocation failed"
 msgstr ""
 
@@ -288,13 +299,13 @@ msgstr ""
 msgid "list files may not contain @ lines"
 msgstr ""
 
-#: src/main/options.c:391 src/main/options.c:393 src/main/options.c:802
+#: src/main/options.c:391 src/main/options.c:393 src/main/options.c:807
 msgid "process ID or pid:fd pair expected"
 msgstr ""
 
-#: src/main/options.c:403 src/main/options.c:405 src/main/options.c:809
+#: src/main/options.c:403 src/main/options.c:405 src/main/options.c:814
 msgid "invalid process ID"
-msgstr ""
+msgstr "virheellinen prosessin ID"
 
 #: src/main/options.c:448 src/pv/file.c:342
 msgid "failed to stat file"
@@ -302,7 +313,7 @@ msgstr ""
 
 #: src/main/options.c:462
 msgid "is a directory"
-msgstr ""
+msgstr "on hakemisto"
 
 #: src/main/options.c:491
 msgid "failed to generate sysfs filename"
@@ -314,83 +325,87 @@ msgstr ""
 
 #: src/main/options.c:533
 msgid "failed to open block device"
-msgstr ""
+msgstr "lohkolaitteen avaaminen epäonnistui"
 
 #: src/main/options.c:543
 msgid "failed to determine size of block device"
-msgstr ""
+msgstr "lohkolaitteen koon päättely epäonnistui"
 
-#: src/main/options.c:649
+#: src/main/options.c:652
 msgid "option structure allocation failed"
 msgstr ""
 
-#: src/main/options.c:668
+#: src/main/options.c:671
 msgid "option structure argv allocation failed"
 msgstr ""
 
-#: src/main/options.c:720
+#: src/main/options.c:723
 msgid "numeric value not understood"
-msgstr ""
+msgstr "numeerista arvoa ei ymmärretty"
 
-#: src/main/options.c:738
+#: src/main/options.c:743
 msgid "integer argument expected"
 msgstr ""
 
-#: src/main/options.c:750
+#: src/main/options.c:755
 msgid "numeric argument expected"
 msgstr ""
 
-#: src/main/options.c:762
+#: src/main/options.c:767
 msgid "missing filename"
-msgstr ""
+msgstr "puuttuva tiedostonimi"
 
-#: src/main/options.c:790
+#: src/main/options.c:795
 msgid "missing process name"
-msgstr ""
+msgstr "puuttuva prosessinimi"
 
-#: src/main/options.c:1042
+#: src/main/options.c:1056
 #, c-format
 msgid "Try `%s --help' for more information."
-msgstr ""
+msgstr "Suorita `%s --help' saadaksesi lisätietoja."
 
-#: src/main/options.c:1044
+#: src/main/options.c:1058
 #, c-format
 msgid "Try `%s -h' for more information."
-msgstr ""
+msgstr "Suorita `%s -h' saadaksesi lisätietoja."
 
-#: src/main/options.c:1075
+#: src/main/options.c:1089
 msgid ""
 "cannot use line mode or transfer modifier options when watching file "
 "descriptors"
 msgstr ""
 
-#: src/main/options.c:1084
+#: src/main/options.c:1098
 msgid "cannot use cursor positioning when watching file descriptors"
 msgstr ""
 
-#: src/main/options.c:1093
+#: src/main/options.c:1107
 msgid "cannot use remote control when watching file descriptors"
 msgstr ""
 
-#: src/main/options.c:1102
+#: src/main/options.c:1116
+msgid "cannot use remote query when watching file descriptors"
+msgstr ""
+
+#: src/main/options.c:1125
 msgid "cannot transfer files when watching file descriptors"
 msgstr ""
 
-#: src/main/options.c:1127
+#: src/main/options.c:1150
 msgid "not available on systems without /proc/self/fdinfo"
 msgstr ""
 
-#: src/main/remote.c:309
-msgid "message not received"
+#: src/main/options.c:1162
+msgid "cannot use remote control and remote query together"
 msgstr ""
 
-#: src/main/remote.c:444
-msgid "SA_SIGINFO not supported on this system"
+#: src/main/options.c:1189
+msgid "files cannot be specified with this option"
 msgstr ""
 
 #: src/main/version.c:28
 msgid "License: GPLv3+ <https://www.gnu.org/licenses/gpl-3.0.html>"
-msgstr ""
+msgstr "Lisenssi: 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."
@@ -402,7 +417,7 @@ msgstr ""
 
 #: src/main/version.c:32
 msgid "Project web site"
-msgstr ""
+msgstr "Projektin verkkosivu"
 
 #: src/pv/cursor.c:61
 msgid "failed to get terminal name"
@@ -428,7 +443,7 @@ msgstr ""
 msgid "yzafpnum KMGTPEZY"
 msgstr ""
 
-#: src/pv/display.c:1053 src/pv/loop.c:747 src/pv/transfer.c:1083
+#: src/pv/display.c:1053 src/pv/state.c:842 src/pv/transfer.c:1135
 msgid "buffer allocation failed"
 msgstr ""
 
@@ -438,11 +453,11 @@ msgstr ""
 
 #: src/pv/file.c:303
 msgid "failed to close file"
-msgstr ""
+msgstr "tiedoston sulkeminen epäonnistui"
 
 #: src/pv/file.c:335
 msgid "failed to read file"
-msgstr ""
+msgstr "tiedoston lukeminen epäonnistui"
 
 #: src/pv/file.c:350
 msgid "failed to stat output file"
@@ -450,7 +465,7 @@ msgstr ""
 
 #: src/pv/file.c:372
 msgid "input file is output file"
-msgstr ""
+msgstr "syötetiedosto on tulostetiedosto"
 
 #: src/pv/file.c:429
 msgid "(none)"
@@ -461,7 +476,7 @@ msgid "(stdin)"
 msgstr ""
 
 #: src/pv/format/averagerate.c:34 src/pv/format/progressbar.c:92
-#: src/pv/format/rate.c:36 src/pv/loop.c:565
+#: src/pv/format/rate.c:36 src/pv/loop.c:121
 msgid "b/s"
 msgstr ""
 
@@ -471,7 +486,7 @@ msgid "/s"
 msgstr ""
 
 #: src/pv/format/averagerate.c:38 src/pv/format/progressbar.c:96
-#: src/pv/format/rate.c:40 src/pv/loop.c:565
+#: src/pv/format/rate.c:40 src/pv/loop.c:121
 msgid "B/s"
 msgstr ""
 
@@ -491,51 +506,51 @@ msgstr ""
 msgid "FIN"
 msgstr ""
 
-#: src/pv/loop.c:564
+#: src/pv/loop.c:120
 msgid "rate min/avg/max/mdev"
 msgstr ""
 
-#: src/pv/loop.c:576
+#: src/pv/loop.c:132
 msgid "rate not measured"
 msgstr ""
 
-#: src/pv/loop.c:768 src/pv/loop.c:784 src/pv/loop.c:802 src/pv/watchpid.c:99
-#: src/pv/watchpid.c:108 src/pv/watchpid.c:119 src/pv/watchpid.c:127
-#: src/pv/watchpid.c:164 src/pv/watchpid.c:183 src/pv/watchpid.c:191
-#: src/pv/watchpid.c:201 src/pv/watchpid.c:299 src/pv/watchpid.c:307
-#: src/pv/watchpid.c:439 src/pv/watchpid.c:462
+#: src/pv/loop.c:802 src/pv/loop.c:818 src/pv/loop.c:836 src/pv/watchpid.c:101
+#: src/pv/watchpid.c:110 src/pv/watchpid.c:121 src/pv/watchpid.c:129
+#: src/pv/watchpid.c:166 src/pv/watchpid.c:185 src/pv/watchpid.c:193
+#: src/pv/watchpid.c:203 src/pv/watchpid.c:307 src/pv/watchpid.c:315
+#: src/pv/watchpid.c:447 src/pv/watchpid.c:470
 msgid "pid"
 msgstr ""
 
-#: src/pv/loop.c:802 src/pv/watchpid.c:108 src/pv/watchpid.c:120
-#: src/pv/watchpid.c:129 src/pv/watchpid.c:183 src/pv/watchpid.c:192
-#: src/pv/watchpid.c:203
+#: src/pv/loop.c:836 src/pv/watchpid.c:110 src/pv/watchpid.c:122
+#: src/pv/watchpid.c:131 src/pv/watchpid.c:185 src/pv/watchpid.c:194
+#: src/pv/watchpid.c:205
 msgid "fd"
 msgstr ""
 
+#: src/pv/remote.c:237 src/pv/remote.c:622
+msgid "message not received"
+msgstr ""
+
+#: src/pv/remote.c:644 src/pv/remote.c:662
+msgid "SA_SIGINFO not supported on this system"
+msgstr "SA_SIGINFO ei ole tuettu tässä järjestelmässä"
+
 #: src/pv/state.c:42
 msgid "history structure allocation failed"
 msgstr ""
 
-#: src/pv/state.c:685 src/pv/state.c:697
+#: src/pv/state.c:794 src/pv/state.c:806
 msgid "file list allocation failed"
 msgstr ""
 
-#: src/pv/state.c:731
-msgid "process list allocation failed"
-msgstr ""
-
-#: src/pv/state.c:739
-msgid "file descriptor list allocation failed"
-msgstr ""
-
 #: src/pv/transfer.c:490
 msgid "read failed"
 msgstr ""
 
 #: src/pv/transfer.c:506
 msgid "warning: read errors detected"
-msgstr ""
+msgstr "varoitus: lukuvirheitä havaittu"
 
 #: src/pv/transfer.c:522
 msgid "file is not seekable"
@@ -549,30 +564,30 @@ msgstr ""
 msgid "skipped past read error"
 msgstr ""
 
-#: src/pv/transfer.c:660
+#: src/pv/transfer.c:663
 msgid "no transfer buffer allocated"
 msgstr ""
 
-#: src/pv/transfer.c:702
+#: src/pv/transfer.c:751
 msgid "failed to set interval timer"
 msgstr ""
 
-#: src/pv/transfer.c:728
+#: src/pv/transfer.c:777
 msgid "failed to clear interval timer"
 msgstr ""
 
-#: src/pv/transfer.c:770
+#: src/pv/transfer.c:822
 msgid "line position buffer allocation failed"
 msgstr ""
 
-#: src/pv/transfer.c:944
+#: src/pv/transfer.c:996
 msgid "write failed"
-msgstr ""
+msgstr "kirjoittaminen epäonnistui"
 
-#: src/pv/transfer.c:1185
+#: src/pv/transfer.c:1237
 msgid "select call failed"
 msgstr ""
 
-#: src/pv/watchpid.c:129 src/pv/watchpid.c:203
+#: src/pv/watchpid.c:131 src/pv/watchpid.c:205
 msgid "not a regular file or block device"
-msgstr ""
+msgstr "ei tavallinen tiedosto tai lohkolaite"

po/fr.po

@@ -1,7 +1,7 @@
 msgid ""
 msgstr ""
 "Report-Msgid-Bugs-To: https://codeberg.org/ivarch/pv/issues\n"
-"POT-Creation-Date: 2025-10-11 16:00+0100\n"
+"POT-Creation-Date: 2025-11-21 23:45+0000\n"
 "PO-Revision-Date: 2025-05-31 08:58+0000\n"
 "Last-Translator: milimarg <milimarg@noreply.codeberg.org>\n"
 "Language-Team: French <https://translate.codeberg.org/projects/pv/pv/fr/>\n"
@@ -186,8 +186,8 @@ msgstr ""
 msgid "use cursor positioning escape sequences"
 msgstr "utiliser les séquences d'échappements de positionnement de curseur"
 
-#: src/main/help.c:327 src/main/help.c:357 src/main/help.c:369
-#: src/main/help.c:379
+#: src/main/help.c:327 src/main/help.c:360 src/main/help.c:376
+#: src/main/help.c:386
 msgid "FILE"
 msgstr "FICHIER"
 
@@ -236,71 +236,79 @@ msgid "use direct I/O to bypass cache"
 msgstr "utiliser les E/S directes pour contourner le cache"
 
 #: src/main/help.c:355
+msgid "try to seek instead of writing null bytes"
+msgstr ""
+
+#: src/main/help.c:358
 msgid "discard input instead of writing to output"
 msgstr "rejeter l'entrée au lieu de l'écrire vers la sortie"
 
-#: src/main/help.c:358
+#: src/main/help.c:361
 msgid "write all input to FILE before writing to output"
 msgstr "écrire toute l'entrée vers FICHIER avant de l'écrire vers la sortie"
 
-#: src/main/help.c:360
-msgid "PID[:FD]"
-msgstr "PID[:FD]"
+#: src/main/help.c:364
+msgid "PID[:FD]|=NAME|@LISTFILE"
+msgstr ""
 
-#: src/main/help.c:361
+#: src/main/help.c:365
 msgid "watch file FD opened by process PID"
 msgstr "surveiller le fichier FD ouvert par le processus PID"
 
-#: src/main/help.c:364
+#: src/main/help.c:368 src/main/help.c:371
 msgid "PID"
 msgstr "PID"
 
-#: src/main/help.c:365
+#: src/main/help.c:369
 msgid "update settings of process PID"
 msgstr "mettre à jour la configuration du processus PID"
 
-#: src/main/help.c:370
+#: src/main/help.c:372
+msgid "show progress of process PID"
+msgstr ""
+
+#: src/main/help.c:377
 msgid "save process ID in FILE"
 msgstr "enregistrer l'ID de processus dans FICHIER"
 
-#: src/main/help.c:373
+#: src/main/help.c:380
 msgid "show this help and exit"
 msgstr "afficher cette aide puis quitter"
 
-#: src/main/help.c:376
+#: src/main/help.c:383
 msgid "show version information and exit"
 msgstr "afficher la version puis quitter"
 
-#: src/main/help.c:380
+#: src/main/help.c:387
 msgid "write debug logs to FILE"
 msgstr "écrire les journaux de déboggage vers FICHIER"
 
-#: src/main/help.c:406
+#: src/main/help.c:413
 #, c-format
 msgid "Usage: %s [OPTION] [FILE]..."
 msgstr "Utilisation : %s [OPTIONS] [FICHIER]..."
 
-#: src/main/help.c:417
+#: src/main/help.c:424
 msgid ""
 "Concatenate FILE(s), or standard input, to standard output, with monitoring."
 msgstr ""
 "Concaténer FICHIER(s), ou l'entrée standard, sur la sortie standard avec "
 "monitorage."
 
-#: src/main/help.c:555
+#: src/main/help.c:562
 msgid "Supported format sequences:"
 msgstr "Séquences de formatage supportées :"
 
-#: src/main/help.c:569
+#: src/main/help.c:576
 #, c-format
 msgid "Please report any bugs to: %s"
 msgstr "SVP rapporter tous bogues à %s"
 
-#: src/main/main.c:232
+#: src/main/main.c:228
 msgid "(input)"
 msgstr "(entrée)"
 
-#: src/main/main.c:334
+#: src/main/main.c:330
 msgid "state allocation failed"
 msgstr "échec de l'allocation de mémoire de condition"
 
@@ -308,11 +316,11 @@ msgstr "échec de l'allocation de mémoire de condition"
 msgid "list files may not contain @ lines"
 msgstr ""
 
-#: src/main/options.c:391 src/main/options.c:393 src/main/options.c:802
+#: src/main/options.c:391 src/main/options.c:393 src/main/options.c:807
 msgid "process ID or pid:fd pair expected"
 msgstr "ID de processus ou paire pid:fd attendue"
 
-#: src/main/options.c:403 src/main/options.c:405 src/main/options.c:809
+#: src/main/options.c:403 src/main/options.c:405 src/main/options.c:814
 msgid "invalid process ID"
 msgstr "ID de processus non valide"
 
@@ -340,45 +348,45 @@ msgstr "échec de l'ouverture du périphérique de bloc"
 msgid "failed to determine size of block device"
 msgstr "échec de l'évaluation de la taille du périphérique de bloc"
 
-#: src/main/options.c:649
+#: src/main/options.c:652
 msgid "option structure allocation failed"
 msgstr "l'allocation pour la structure d'une option a échoué"
 
-#: src/main/options.c:668
+#: src/main/options.c:671
 msgid "option structure argv allocation failed"
 msgstr "l'allocation pour la structure de l'option argv a échoué"
 
-#: src/main/options.c:720
+#: src/main/options.c:723
 msgid "numeric value not understood"
 msgstr "valeur numérique non comprise"
 
-#: src/main/options.c:738
+#: src/main/options.c:743
 msgid "integer argument expected"
 msgstr "Valeur entière attendue"
 
-#: src/main/options.c:750
+#: src/main/options.c:755
 msgid "numeric argument expected"
 msgstr "Valeur numérique attendue"
 
-#: src/main/options.c:762
+#: src/main/options.c:767
 msgid "missing filename"
 msgstr ""
 
-#: src/main/options.c:790
+#: src/main/options.c:795
 msgid "missing process name"
 msgstr ""
 
-#: src/main/options.c:1042
+#: src/main/options.c:1056
 #, c-format
 msgid "Try `%s --help' for more information."
 msgstr "Essayez `%s --help' pour plus d'informations."
 
-#: src/main/options.c:1044
+#: src/main/options.c:1058
 #, c-format
 msgid "Try `%s -h' for more information."
 msgstr "Essayez `%s -h' pour plus d'informations."
 
-#: src/main/options.c:1075
+#: src/main/options.c:1089
 msgid ""
 "cannot use line mode or transfer modifier options when watching file "
 "descriptors"
@@ -386,35 +394,39 @@ 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:1084
+#: src/main/options.c:1098
 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:1093
+#: src/main/options.c:1107
 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:1102
+#: src/main/options.c:1116
+msgid "cannot use remote query when watching file descriptors"
+msgstr ""
+
+#: src/main/options.c:1125
 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:1127
+#: src/main/options.c:1150
 msgid "not available on systems without /proc/self/fdinfo"
 msgstr "non disponible sur les systèmes sans /proc/self/fdinfo"
 
-#: src/main/remote.c:309
-msgid "message not received"
-msgstr "message non reçu"
+#: src/main/options.c:1162
+msgid "cannot use remote control and remote query together"
+msgstr ""
 
-#: src/main/remote.c:444
-msgid "SA_SIGINFO not supported on this system"
-msgstr "SA_SIGINFO non pris en charge sur ce système"
+#: src/main/options.c:1189
+msgid "files cannot be specified with this option"
+msgstr ""
 
 #: src/main/version.c:28
 msgid "License: GPLv3+ <https://www.gnu.org/licenses/gpl-3.0.html>"
@@ -458,7 +470,7 @@ msgstr "yzafpnum kMGTPEZY"
 msgid "yzafpnum KMGTPEZY"
 msgstr "yzafpnum KMGTPEZY"
 
-#: src/pv/display.c:1053 src/pv/loop.c:747 src/pv/transfer.c:1083
+#: src/pv/display.c:1053 src/pv/state.c:842 src/pv/transfer.c:1135
 msgid "buffer allocation failed"
 msgstr "échec de l'allocation de mémoire tampon"
 
@@ -491,7 +503,7 @@ msgid "(stdin)"
 msgstr "(stdin)"
 
 #: src/pv/format/averagerate.c:34 src/pv/format/progressbar.c:92
-#: src/pv/format/rate.c:36 src/pv/loop.c:565
+#: src/pv/format/rate.c:36 src/pv/loop.c:121
 msgid "b/s"
 msgstr "b/s"
 
@@ -501,7 +513,7 @@ msgid "/s"
 msgstr "/s"
 
 #: src/pv/format/averagerate.c:38 src/pv/format/progressbar.c:96
-#: src/pv/format/rate.c:40 src/pv/loop.c:565
+#: src/pv/format/rate.c:40 src/pv/loop.c:121
 msgid "B/s"
 msgstr "O/s"
 
@@ -521,48 +533,44 @@ msgstr "ETA"
 msgid "FIN"
 msgstr "FIN"
 
-#: src/pv/loop.c:564
+#: src/pv/loop.c:120
 msgid "rate min/avg/max/mdev"
 msgstr "taux min/moy/max/écart-type"
 
-#: src/pv/loop.c:576
+#: src/pv/loop.c:132
 msgid "rate not measured"
 msgstr "taux non mesuré"
 
-#: src/pv/loop.c:768 src/pv/loop.c:784 src/pv/loop.c:802 src/pv/watchpid.c:99
-#: src/pv/watchpid.c:108 src/pv/watchpid.c:119 src/pv/watchpid.c:127
-#: src/pv/watchpid.c:164 src/pv/watchpid.c:183 src/pv/watchpid.c:191
-#: src/pv/watchpid.c:201 src/pv/watchpid.c:299 src/pv/watchpid.c:307
-#: src/pv/watchpid.c:439 src/pv/watchpid.c:462
+#: src/pv/loop.c:802 src/pv/loop.c:818 src/pv/loop.c:836 src/pv/watchpid.c:101
+#: src/pv/watchpid.c:110 src/pv/watchpid.c:121 src/pv/watchpid.c:129
+#: src/pv/watchpid.c:166 src/pv/watchpid.c:185 src/pv/watchpid.c:193
+#: src/pv/watchpid.c:203 src/pv/watchpid.c:307 src/pv/watchpid.c:315
+#: src/pv/watchpid.c:447 src/pv/watchpid.c:470
 msgid "pid"
 msgstr "pid"
 
-#: src/pv/loop.c:802 src/pv/watchpid.c:108 src/pv/watchpid.c:120
-#: src/pv/watchpid.c:129 src/pv/watchpid.c:183 src/pv/watchpid.c:192
-#: src/pv/watchpid.c:203
+#: src/pv/loop.c:836 src/pv/watchpid.c:110 src/pv/watchpid.c:122
+#: src/pv/watchpid.c:131 src/pv/watchpid.c:185 src/pv/watchpid.c:194
+#: src/pv/watchpid.c:205
 msgid "fd"
 msgstr "fd"
 
+#: src/pv/remote.c:237 src/pv/remote.c:622
+msgid "message not received"
+msgstr "message non reçu"
+
+#: src/pv/remote.c:644 src/pv/remote.c:662
+msgid "SA_SIGINFO not supported on this system"
+msgstr "SA_SIGINFO non pris en charge sur ce système"
+
 #: src/pv/state.c:42
 msgid "history structure allocation failed"
 msgstr "l'allocation de la structure de l'historique a échoué"
 
-#: src/pv/state.c:685 src/pv/state.c:697
+#: src/pv/state.c:794 src/pv/state.c:806
 msgid "file list allocation failed"
 msgstr "échec de l'allocation de la liste de fichiers"
 
-#: src/pv/state.c:731
-#, fuzzy
-#| msgid "file list allocation failed"
-msgid "process list allocation failed"
-msgstr "échec de l'allocation de la liste de fichiers"
-
-#: src/pv/state.c:739
-#, fuzzy
-#| msgid "file list allocation failed"
-msgid "file descriptor list allocation failed"
-msgstr "échec de l'allocation de la liste de fichiers"
-
 #: src/pv/transfer.c:490
 msgid "read failed"
 msgstr "la lecture a échoué"
@@ -583,33 +591,36 @@ msgstr "n'a pas réussi à dépasser l'erreur"
 msgid "skipped past read error"
 msgstr "erreur de lecture dépassée"
 
-#: src/pv/transfer.c:660
+#: src/pv/transfer.c:663
 msgid "no transfer buffer allocated"
 msgstr "aucun tampon de transfert alloué"
 
-#: src/pv/transfer.c:702
+#: src/pv/transfer.c:751
 msgid "failed to set interval timer"
 msgstr "La définition de l'intervalle du minuteur a échoué"
 
-#: src/pv/transfer.c:728
+#: src/pv/transfer.c:777
 msgid "failed to clear interval timer"
 msgstr "La réinitialisation des intervalles du minuteur a échoué"
 
-#: src/pv/transfer.c:770
+#: src/pv/transfer.c:822
 msgid "line position buffer allocation failed"
 msgstr "L'allocation de la position de la ligne de la mémoire tampon a échoué"
 
-#: src/pv/transfer.c:944
+#: src/pv/transfer.c:996
 msgid "write failed"
 msgstr "l'écriture a échoué"
 
-#: src/pv/transfer.c:1185
+#: src/pv/transfer.c:1237
 msgid "select call failed"
 msgstr "l'appel de sélection a échoué"
 
-#: src/pv/watchpid.c:129 src/pv/watchpid.c:203
+#: src/pv/watchpid.c:131 src/pv/watchpid.c:205
 msgid "not a regular file or block device"
 msgstr "pas un fichier ordinaire ou un périphérique de bloc"
 
+#~ msgid "PID[:FD]"
+#~ msgstr "PID[:FD]"
+
 #~ msgid "failed to set alarm signal handler"
 #~ msgstr "échec de la définition du gestionnaire de signal d'alarme"

po/ka.po

@@ -0,0 +1,589 @@
+msgid ""
+msgstr ""
+"Project-Id-Version: pv 1.9.34\n"
+"Report-Msgid-Bugs-To: https://codeberg.org/ivarch/pv/issues\n"
+"POT-Creation-Date: 2025-11-21 23:45+0000\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: ka\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: src/main/help.c:236
+msgid "show progress bar"
+msgstr ""
+
+#: src/main/help.c:239
+msgid "show elapsed time"
+msgstr ""
+
+#: src/main/help.c:242
+msgid "show estimated time of arrival (completion)"
+msgstr ""
+
+#: src/main/help.c:245
+msgid "show absolute estimated time of arrival (completion)"
+msgstr ""
+
+#: src/main/help.c:248
+msgid "show data transfer rate counter"
+msgstr ""
+
+#: src/main/help.c:251
+msgid "show data transfer average rate counter"
+msgstr ""
+
+#: src/main/help.c:254
+msgid "show number of bytes transferred"
+msgstr ""
+
+#: src/main/help.c:257
+msgid "show percentage of transfer buffer in use"
+msgstr ""
+
+#: src/main/help.c:259
+msgid "NUM"
+msgstr ""
+
+#: src/main/help.c:260
+msgid "show NUM bytes last written"
+msgstr ""
+
+#: src/main/help.c:262
+msgid "FORMAT"
+msgstr ""
+
+#: src/main/help.c:263
+msgid "set output format to FORMAT"
+msgstr ""
+
+#: src/main/help.c:266
+msgid "output percentages, not visual information"
+msgstr ""
+
+#: src/main/help.c:269
+msgid "do not output any transfer information at all"
+msgstr ""
+
+#: src/main/help.c:273
+msgid "show number of bits transferred"
+msgstr ""
+
+#: src/main/help.c:276
+msgid "treat suffixes as multiples of 1000 rather than 1024"
+msgstr ""
+
+#: src/main/help.c:279
+msgid "display nothing until first byte transferred"
+msgstr ""
+
+#: src/main/help.c:281 src/main/help.c:296 src/main/help.c:299
+msgid "SEC"
+msgstr ""
+
+#: src/main/help.c:282
+msgid "display nothing until SEC seconds have passed"
+msgstr ""
+
+#: src/main/help.c:284
+msgid "SIZE"
+msgstr ""
+
+#: src/main/help.c:285
+msgid "set estimated data size to SIZE bytes"
+msgstr ""
+
+#: src/main/help.c:288
+msgid "if size unknown, show rate vs max rate"
+msgstr ""
+
+#: src/main/help.c:291
+msgid "count lines instead of bytes"
+msgstr ""
+
+#: src/main/help.c:294
+msgid "lines are null-terminated"
+msgstr ""
+
+#: src/main/help.c:297
+msgid "update every SEC seconds"
+msgstr ""
+
+#: src/main/help.c:300
+msgid "compute average rate over past SEC seconds (default 30s)"
+msgstr ""
+
+#: src/main/help.c:302
+msgid "WIDTH"
+msgstr ""
+
+#: src/main/help.c:303
+msgid "assume terminal is WIDTH characters wide"
+msgstr ""
+
+#: src/main/help.c:305
+msgid "HEIGHT"
+msgstr ""
+
+#: src/main/help.c:306
+msgid "assume terminal is HEIGHT rows high"
+msgstr ""
+
+#: src/main/help.c:308
+msgid "NAME"
+msgstr ""
+
+#: src/main/help.c:309
+msgid "prefix visual information with NAME"
+msgstr ""
+
+#: src/main/help.c:311
+msgid "STYLE"
+msgstr ""
+
+#: src/main/help.c:312
+msgid "set default bar style to NAME"
+msgstr ""
+
+#: src/main/help.c:314
+msgid "SPEC"
+msgstr ""
+
+#: src/main/help.c:315
+msgid "also send progress to SPEC"
+msgstr ""
+
+#: src/main/help.c:318
+msgid "output transfer statistics at the end"
+msgstr ""
+
+#: src/main/help.c:321
+msgid "output even if standard error is not a terminal"
+msgstr ""
+
+#: src/main/help.c:324
+msgid "use cursor positioning escape sequences"
+msgstr ""
+
+#: src/main/help.c:327 src/main/help.c:360 src/main/help.c:376
+#: src/main/help.c:386
+msgid "FILE"
+msgstr ""
+
+#: src/main/help.c:328
+msgid "write output to FILE instead of stdout"
+msgstr ""
+
+#: src/main/help.c:330
+msgid "RATE"
+msgstr ""
+
+#: src/main/help.c:331
+msgid "limit transfer to RATE bytes per second"
+msgstr ""
+
+#: src/main/help.c:333 src/main/help.c:342
+msgid "BYTES"
+msgstr ""
+
+#: src/main/help.c:334
+msgid "use a buffer size of BYTES"
+msgstr ""
+
+#: src/main/help.c:337
+msgid "never use splice(), always use read/write"
+msgstr ""
+
+#: src/main/help.c:340
+msgid "skip read errors in input"
+msgstr ""
+
+#: src/main/help.c:343
+msgid "skip errors in BYTES blocks at a time"
+msgstr ""
+
+#: src/main/help.c:346
+msgid "stop after --size bytes have been transferred"
+msgstr ""
+
+#: src/main/help.c:349
+msgid "flush cache to disk after every write"
+msgstr ""
+
+#: src/main/help.c:352
+msgid "use direct I/O to bypass cache"
+msgstr ""
+
+#: src/main/help.c:355
+msgid "try to seek instead of writing null bytes"
+msgstr ""
+
+#: src/main/help.c:358
+msgid "discard input instead of writing to output"
+msgstr ""
+
+#: src/main/help.c:361
+msgid "write all input to FILE before writing to output"
+msgstr ""
+
+#: src/main/help.c:364
+msgid "PID[:FD]|=NAME|@LISTFILE"
+msgstr ""
+
+#: src/main/help.c:365
+msgid "watch file FD opened by process PID"
+msgstr ""
+
+#: src/main/help.c:368 src/main/help.c:371
+msgid "PID"
+msgstr ""
+
+#: src/main/help.c:369
+msgid "update settings of process PID"
+msgstr ""
+
+#: src/main/help.c:372
+msgid "show progress of process PID"
+msgstr ""
+
+#: src/main/help.c:377
+msgid "save process ID in FILE"
+msgstr ""
+
+#: src/main/help.c:380
+msgid "show this help and exit"
+msgstr ""
+
+#: src/main/help.c:383
+msgid "show version information and exit"
+msgstr ""
+
+#: src/main/help.c:387
+msgid "write debug logs to FILE"
+msgstr ""
+
+#: src/main/help.c:413
+#, c-format
+msgid "Usage: %s [OPTION] [FILE]..."
+msgstr ""
+
+#: src/main/help.c:424
+msgid ""
+"Concatenate FILE(s), or standard input, to standard output, with monitoring."
+msgstr ""
+
+#: src/main/help.c:562
+msgid "Supported format sequences:"
+msgstr ""
+
+#: src/main/help.c:576
+#, c-format
+msgid "Please report any bugs to: %s"
+msgstr ""
+
+#: src/main/main.c:228
+msgid "(input)"
+msgstr ""
+
+#: src/main/main.c:330
+msgid "state allocation failed"
+msgstr ""
+
+#: src/main/options.c:370
+msgid "list files may not contain @ lines"
+msgstr ""
+
+#: src/main/options.c:391 src/main/options.c:393 src/main/options.c:807
+msgid "process ID or pid:fd pair expected"
+msgstr ""
+
+#: src/main/options.c:403 src/main/options.c:405 src/main/options.c:814
+msgid "invalid process ID"
+msgstr ""
+
+#: src/main/options.c:448 src/pv/file.c:342
+msgid "failed to stat file"
+msgstr ""
+
+#: src/main/options.c:462
+msgid "is a directory"
+msgstr ""
+
+#: src/main/options.c:491
+msgid "failed to generate sysfs filename"
+msgstr ""
+
+#: src/main/options.c:513
+msgid "failed to read sysfs size file"
+msgstr ""
+
+#: src/main/options.c:533
+msgid "failed to open block device"
+msgstr ""
+
+#: src/main/options.c:543
+msgid "failed to determine size of block device"
+msgstr ""
+
+#: src/main/options.c:652
+msgid "option structure allocation failed"
+msgstr ""
+
+#: src/main/options.c:671
+msgid "option structure argv allocation failed"
+msgstr ""
+
+#: src/main/options.c:723
+msgid "numeric value not understood"
+msgstr ""
+
+#: src/main/options.c:743
+msgid "integer argument expected"
+msgstr ""
+
+#: src/main/options.c:755
+msgid "numeric argument expected"
+msgstr ""
+
+#: src/main/options.c:767
+msgid "missing filename"
+msgstr ""
+
+#: src/main/options.c:795
+msgid "missing process name"
+msgstr ""
+
+#: src/main/options.c:1056
+#, c-format
+msgid "Try `%s --help' for more information."
+msgstr ""
+
+#: src/main/options.c:1058
+#, c-format
+msgid "Try `%s -h' for more information."
+msgstr ""
+
+#: src/main/options.c:1089
+msgid ""
+"cannot use line mode or transfer modifier options when watching file "
+"descriptors"
+msgstr ""
+
+#: src/main/options.c:1098
+msgid "cannot use cursor positioning when watching file descriptors"
+msgstr ""
+
+#: src/main/options.c:1107
+msgid "cannot use remote control when watching file descriptors"
+msgstr ""
+
+#: src/main/options.c:1116
+msgid "cannot use remote query when watching file descriptors"
+msgstr ""
+
+#: src/main/options.c:1125
+msgid "cannot transfer files when watching file descriptors"
+msgstr ""
+
+#: src/main/options.c:1150
+msgid "not available on systems without /proc/self/fdinfo"
+msgstr ""
+
+#: src/main/options.c:1162
+msgid "cannot use remote control and remote query together"
+msgstr ""
+
+#: src/main/options.c:1189
+msgid "files cannot be specified with this option"
+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:61
+msgid "failed to get terminal name"
+msgstr ""
+
+#: src/pv/cursor.c:106
+msgid "failed to open lock file"
+msgstr ""
+
+#: src/pv/cursor.c:139
+msgid "lock attempt failed"
+msgstr ""
+
+#: src/pv/cursor.c:400
+msgid "failed to open terminal"
+msgstr ""
+
+#: src/pv/display.c:285
+msgid "yzafpnum kMGTPEZY"
+msgstr ""
+
+#: src/pv/display.c:303
+msgid "yzafpnum KMGTPEZY"
+msgstr ""
+
+#: src/pv/display.c:1053 src/pv/state.c:842 src/pv/transfer.c:1135
+msgid "buffer allocation failed"
+msgstr ""
+
+#: src/pv/file.c:153
+msgid "failed to seek to start of output"
+msgstr ""
+
+#: src/pv/file.c:303
+msgid "failed to close file"
+msgstr ""
+
+#: src/pv/file.c:335
+msgid "failed to read file"
+msgstr ""
+
+#: src/pv/file.c:350
+msgid "failed to stat output file"
+msgstr ""
+
+#: src/pv/file.c:372
+msgid "input file is output file"
+msgstr ""
+
+#: src/pv/file.c:429
+msgid "(none)"
+msgstr ""
+
+#: src/pv/file.c:431
+msgid "(stdin)"
+msgstr ""
+
+#: src/pv/format/averagerate.c:34 src/pv/format/progressbar.c:92
+#: src/pv/format/rate.c:36 src/pv/loop.c:121
+msgid "b/s"
+msgstr ""
+
+#: src/pv/format/averagerate.c:38 src/pv/format/progressbar.c:96
+#: src/pv/format/rate.c:40
+msgid "/s"
+msgstr ""
+
+#: src/pv/format/averagerate.c:38 src/pv/format/progressbar.c:96
+#: src/pv/format/rate.c:40 src/pv/loop.c:121
+msgid "B/s"
+msgstr ""
+
+#: src/pv/format/bytes.c:35
+msgid "b"
+msgstr ""
+
+#: src/pv/format/bytes.c:39 src/pv/transfer.c:620
+msgid "B"
+msgstr ""
+
+#: src/pv/format/eta.c:52 src/pv/format/eta.c:56
+msgid "ETA"
+msgstr ""
+
+#: src/pv/format/fineta.c:80
+msgid "FIN"
+msgstr ""
+
+#: src/pv/loop.c:120
+msgid "rate min/avg/max/mdev"
+msgstr ""
+
+#: src/pv/loop.c:132
+msgid "rate not measured"
+msgstr ""
+
+#: src/pv/loop.c:802 src/pv/loop.c:818 src/pv/loop.c:836 src/pv/watchpid.c:101
+#: src/pv/watchpid.c:110 src/pv/watchpid.c:121 src/pv/watchpid.c:129
+#: src/pv/watchpid.c:166 src/pv/watchpid.c:185 src/pv/watchpid.c:193
+#: src/pv/watchpid.c:203 src/pv/watchpid.c:307 src/pv/watchpid.c:315
+#: src/pv/watchpid.c:447 src/pv/watchpid.c:470
+msgid "pid"
+msgstr ""
+
+#: src/pv/loop.c:836 src/pv/watchpid.c:110 src/pv/watchpid.c:122
+#: src/pv/watchpid.c:131 src/pv/watchpid.c:185 src/pv/watchpid.c:194
+#: src/pv/watchpid.c:205
+msgid "fd"
+msgstr ""
+
+#: src/pv/remote.c:237 src/pv/remote.c:622
+msgid "message not received"
+msgstr ""
+
+#: src/pv/remote.c:644 src/pv/remote.c:662
+msgid "SA_SIGINFO not supported on this system"
+msgstr ""
+
+#: src/pv/state.c:42
+msgid "history structure allocation failed"
+msgstr ""
+
+#: src/pv/state.c:794 src/pv/state.c:806
+msgid "file list allocation failed"
+msgstr ""
+
+#: src/pv/transfer.c:490
+msgid "read failed"
+msgstr ""
+
+#: src/pv/transfer.c:506
+msgid "warning: read errors detected"
+msgstr ""
+
+#: src/pv/transfer.c:522
+msgid "file is not seekable"
+msgstr ""
+
+#: src/pv/transfer.c:599
+msgid "failed to seek past error"
+msgstr ""
+
+#: src/pv/transfer.c:619
+msgid "skipped past read error"
+msgstr ""
+
+#: src/pv/transfer.c:663
+msgid "no transfer buffer allocated"
+msgstr ""
+
+#: src/pv/transfer.c:751
+msgid "failed to set interval timer"
+msgstr ""
+
+#: src/pv/transfer.c:777
+msgid "failed to clear interval timer"
+msgstr ""
+
+#: src/pv/transfer.c:822
+msgid "line position buffer allocation failed"
+msgstr ""
+
+#: src/pv/transfer.c:996
+msgid "write failed"
+msgstr ""
+
+#: src/pv/transfer.c:1237
+msgid "select call failed"
+msgstr ""
+
+#: src/pv/watchpid.c:131 src/pv/watchpid.c:205
+msgid "not a regular file or block device"
+msgstr ""

po/pl.po

@@ -6,7 +6,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: https://codeberg.org/ivarch/pv/issues\n"
-"POT-Creation-Date: 2025-10-11 16:00+0100\n"
+"POT-Creation-Date: 2025-11-21 23:45+0000\n"
 "PO-Revision-Date: 2025-10-02 13:23+0000\n"
 "Last-Translator: Coral Pink <coralpink@noreply.codeberg.org>\n"
 "Language-Team: Polish <https://translate.codeberg.org/projects/pv/pv/pl/>\n"
@@ -178,8 +178,8 @@ msgstr "pokaż wyjście nawet standardowe wyjście błędu nie jest terminalem"
 msgid "use cursor positioning escape sequences"
 msgstr "używaj znaków ucieczki do pozycjonowania kursora"
 
-#: src/main/help.c:327 src/main/help.c:357 src/main/help.c:369
-#: src/main/help.c:379
+#: src/main/help.c:327 src/main/help.c:360 src/main/help.c:376
+#: src/main/help.c:386
 msgid "FILE"
 msgstr "PLIK"
 
@@ -229,72 +229,80 @@ msgstr ""
 "użyj bezpośredniego wejścia/wyjścia celem pominięcia pamięci podręcznej"
 
 #: src/main/help.c:355
+msgid "try to seek instead of writing null bytes"
+msgstr ""
+
+#: src/main/help.c:358
 msgid "discard input instead of writing to output"
 msgstr "zignoruj dane wejściowe zamiast wyświetlić je na wyjściu standardowym"
 
-#: src/main/help.c:358
+#: src/main/help.c:361
 msgid "write all input to FILE before writing to output"
 msgstr ""
 "zapisz wszystkie dane wejściowe do PLIK przed wyświetleniem ich na wyjściu"
 
-#: src/main/help.c:360
-msgid "PID[:FD]"
-msgstr "PID[:FD]"
+#: src/main/help.c:364
+msgid "PID[:FD]|=NAME|@LISTFILE"
+msgstr ""
 
-#: src/main/help.c:361
+#: src/main/help.c:365
 msgid "watch file FD opened by process PID"
 msgstr "obserwuj plik FD otworzony przez proces PID"
 
-#: src/main/help.c:364
+#: src/main/help.c:368 src/main/help.c:371
 msgid "PID"
 msgstr "PID"
 
-#: src/main/help.c:365
+#: src/main/help.c:369
 msgid "update settings of process PID"
 msgstr "zaktualizuj ustawienia procesu PID"
 
-#: src/main/help.c:370
+#: src/main/help.c:372
+msgid "show progress of process PID"
+msgstr ""
+
+#: src/main/help.c:377
 msgid "save process ID in FILE"
 msgstr "zapisz ID procesu do PLIK"
 
-#: src/main/help.c:373
+#: src/main/help.c:380
 msgid "show this help and exit"
 msgstr "wyświetl te informacje z pomocą i wyjdź"
 
-#: src/main/help.c:376
+#: src/main/help.c:383
 msgid "show version information and exit"
 msgstr "wyświetl informacje o wersji i wyjdź"
 
-#: src/main/help.c:380
+#: src/main/help.c:387
 msgid "write debug logs to FILE"
 msgstr "zapisz logi debugujące do PLIK"
 
-#: src/main/help.c:406
+#: src/main/help.c:413
 #, c-format
 msgid "Usage: %s [OPTION] [FILE]..."
 msgstr "Sposób użycia: %s [OPCJA] [PLIK]..."
 
-#: src/main/help.c:417
+#: src/main/help.c:424
 msgid ""
 "Concatenate FILE(s), or standard input, to standard output, with monitoring."
 msgstr ""
 "Łączenie PLIK(ów) lub wejścia standardowego, do wyjścia standardowego z "
 "monitoringiem."
 
-#: src/main/help.c:555
+#: src/main/help.c:562
 msgid "Supported format sequences:"
 msgstr "Wspierane sekwencje formatowania:"
 
-#: src/main/help.c:569
+#: src/main/help.c:576
 #, c-format
 msgid "Please report any bugs to: %s"
 msgstr "Proszę przesyłać zgłoszenia błędów do %s"
 
-#: src/main/main.c:232
+#: src/main/main.c:228
 msgid "(input)"
 msgstr "(wejście)"
 
-#: src/main/main.c:334
+#: src/main/main.c:330
 msgid "state allocation failed"
 msgstr "alokacja stanu programu nie powiodła się"
 
@@ -302,11 +310,11 @@ msgstr "alokacja stanu programu nie powiodła się"
 msgid "list files may not contain @ lines"
 msgstr ""
 
-#: src/main/options.c:391 src/main/options.c:393 src/main/options.c:802
+#: src/main/options.c:391 src/main/options.c:393 src/main/options.c:807
 msgid "process ID or pid:fd pair expected"
 msgstr "oczekiwany proces ID lub para PID:FD"
 
-#: src/main/options.c:403 src/main/options.c:405 src/main/options.c:809
+#: src/main/options.c:403 src/main/options.c:405 src/main/options.c:814
 msgid "invalid process ID"
 msgstr "niepoprawne ID procesu"
 
@@ -334,45 +342,45 @@ msgstr "nie udało się otworzyć urządzenia blokowego"
 msgid "failed to determine size of block device"
 msgstr "nie udało się ustalić rozmiaru urządzenia blokowego"
 
-#: src/main/options.c:649
+#: src/main/options.c:652
 msgid "option structure allocation failed"
 msgstr "nie udało się zaalokować struktur opcji"
 
-#: src/main/options.c:668
+#: src/main/options.c:671
 msgid "option structure argv allocation failed"
 msgstr "nie udało się zaalokować struktur opcji argv"
 
-#: src/main/options.c:720
+#: src/main/options.c:723
 msgid "numeric value not understood"
 msgstr "wartość liczbowa niezrozumiana"
 
-#: src/main/options.c:738
+#: src/main/options.c:743
 msgid "integer argument expected"
 msgstr "oczekiwany argument typu liczby całkowitej"
 
-#: src/main/options.c:750
+#: src/main/options.c:755
 msgid "numeric argument expected"
 msgstr "oczekiwany argument liczbowy"
 
-#: src/main/options.c:762
+#: src/main/options.c:767
 msgid "missing filename"
 msgstr ""
 
-#: src/main/options.c:790
+#: src/main/options.c:795
 msgid "missing process name"
 msgstr ""
 
-#: src/main/options.c:1042
+#: src/main/options.c:1056
 #, c-format
 msgid "Try `%s --help' for more information."
 msgstr "Spróbuj `%s --help' by uzyskać więcej informacji."
 
-#: src/main/options.c:1044
+#: src/main/options.c:1058
 #, c-format
 msgid "Try `%s -h' for more information."
 msgstr "Spróbuj `%s -h' by uzyskać więcej informacji."
 
-#: src/main/options.c:1075
+#: src/main/options.c:1089
 msgid ""
 "cannot use line mode or transfer modifier options when watching file "
 "descriptors"
@@ -380,33 +388,37 @@ msgstr ""
 "nie można użyć trybu zliczania linii lub opcji modyfikujących przesył "
 "łącznie z opcją obserwowania deskryptorów plików"
 
-#: src/main/options.c:1084
+#: src/main/options.c:1098
 msgid "cannot use cursor positioning when watching file descriptors"
 msgstr ""
 "nie można użyć pozycjonowania kursora łącznie z opcją obserwowania "
 "deskryptorów plików"
 
-#: src/main/options.c:1093
+#: src/main/options.c:1107
 msgid "cannot use remote control when watching file descriptors"
 msgstr ""
 "nie można użyć opcji zaktualizowania ustawień procesu łącznie z opcją "
 "obserwowania deskryptorów plików"
 
-#: src/main/options.c:1102
+#: src/main/options.c:1116
+msgid "cannot use remote query when watching file descriptors"
+msgstr ""
+
+#: src/main/options.c:1125
 msgid "cannot transfer files when watching file descriptors"
 msgstr "nie można przesyłać plików z opcją obserwowania deskryptorów plików"
 
-#: src/main/options.c:1127
+#: src/main/options.c:1150
 msgid "not available on systems without /proc/self/fdinfo"
 msgstr "niedostępne na systemach bez /proc/self/fdinfo"
 
-#: src/main/remote.c:309
-msgid "message not received"
-msgstr "wiadomość nieodebrana"
+#: src/main/options.c:1162
+msgid "cannot use remote control and remote query together"
+msgstr ""
 
-#: src/main/remote.c:444
-msgid "SA_SIGINFO not supported on this system"
-msgstr "SA_SIGINFO nie jest wspierane na tym systemie"
+#: src/main/options.c:1189
+msgid "files cannot be specified with this option"
+msgstr ""
 
 #: src/main/version.c:28
 msgid "License: GPLv3+ <https://www.gnu.org/licenses/gpl-3.0.html>"
@@ -449,7 +461,7 @@ msgstr "yzafpnum kMGTPEZY"
 msgid "yzafpnum KMGTPEZY"
 msgstr "yzafpnum KMGTPEZY"
 
-#: src/pv/display.c:1053 src/pv/loop.c:747 src/pv/transfer.c:1083
+#: src/pv/display.c:1053 src/pv/state.c:842 src/pv/transfer.c:1135
 msgid "buffer allocation failed"
 msgstr "nie udało się zaalokować bufora"
 
@@ -483,7 +495,7 @@ msgid "(stdin)"
 msgstr "(stdin)"
 
 #: src/pv/format/averagerate.c:34 src/pv/format/progressbar.c:92
-#: src/pv/format/rate.c:36 src/pv/loop.c:565
+#: src/pv/format/rate.c:36 src/pv/loop.c:121
 msgid "b/s"
 msgstr "b/s"
 
@@ -493,7 +505,7 @@ msgid "/s"
 msgstr "/s"
 
 #: src/pv/format/averagerate.c:38 src/pv/format/progressbar.c:96
-#: src/pv/format/rate.c:40 src/pv/loop.c:565
+#: src/pv/format/rate.c:40 src/pv/loop.c:121
 msgid "B/s"
 msgstr "B/s"
 
@@ -513,44 +525,44 @@ msgstr "ETA"
 msgid "FIN"
 msgstr "FIN"
 
-#: src/pv/loop.c:564
+#: src/pv/loop.c:120
 msgid "rate min/avg/max/mdev"
 msgstr "prędkość min/śr/max/odch"
 
-#: src/pv/loop.c:576
+#: src/pv/loop.c:132
 msgid "rate not measured"
 msgstr "prędkość niezmierzona"
 
-#: src/pv/loop.c:768 src/pv/loop.c:784 src/pv/loop.c:802 src/pv/watchpid.c:99
-#: src/pv/watchpid.c:108 src/pv/watchpid.c:119 src/pv/watchpid.c:127
-#: src/pv/watchpid.c:164 src/pv/watchpid.c:183 src/pv/watchpid.c:191
-#: src/pv/watchpid.c:201 src/pv/watchpid.c:299 src/pv/watchpid.c:307
-#: src/pv/watchpid.c:439 src/pv/watchpid.c:462
+#: src/pv/loop.c:802 src/pv/loop.c:818 src/pv/loop.c:836 src/pv/watchpid.c:101
+#: src/pv/watchpid.c:110 src/pv/watchpid.c:121 src/pv/watchpid.c:129
+#: src/pv/watchpid.c:166 src/pv/watchpid.c:185 src/pv/watchpid.c:193
+#: src/pv/watchpid.c:203 src/pv/watchpid.c:307 src/pv/watchpid.c:315
+#: src/pv/watchpid.c:447 src/pv/watchpid.c:470
 msgid "pid"
 msgstr "pid"
 
-#: src/pv/loop.c:802 src/pv/watchpid.c:108 src/pv/watchpid.c:120
-#: src/pv/watchpid.c:129 src/pv/watchpid.c:183 src/pv/watchpid.c:192
-#: src/pv/watchpid.c:203
+#: src/pv/loop.c:836 src/pv/watchpid.c:110 src/pv/watchpid.c:122
+#: src/pv/watchpid.c:131 src/pv/watchpid.c:185 src/pv/watchpid.c:194
+#: src/pv/watchpid.c:205
 msgid "fd"
 msgstr "fd"
 
+#: src/pv/remote.c:237 src/pv/remote.c:622
+msgid "message not received"
+msgstr "wiadomość nieodebrana"
+
+#: src/pv/remote.c:644 src/pv/remote.c:662
+msgid "SA_SIGINFO not supported on this system"
+msgstr "SA_SIGINFO nie jest wspierane na tym systemie"
+
 #: src/pv/state.c:42
 msgid "history structure allocation failed"
 msgstr "nie udało się zaalokować struktury historii"
 
-#: src/pv/state.c:685 src/pv/state.c:697
+#: src/pv/state.c:794 src/pv/state.c:806
 msgid "file list allocation failed"
 msgstr "nie udało się zaalokować listy plików"
 
-#: src/pv/state.c:731
-msgid "process list allocation failed"
-msgstr "nie udało się zaalokować listy procesów"
-
-#: src/pv/state.c:739
-msgid "file descriptor list allocation failed"
-msgstr "nie udało się zaalokować listy deskryptorów plików"
-
 #: src/pv/transfer.c:490
 msgid "read failed"
 msgstr "błąd odczytu"
@@ -571,31 +583,40 @@ msgstr "nie udało się przewinąć za błąd"
 msgid "skipped past read error"
 msgstr "pominięto błąd odczytu"
 
-#: src/pv/transfer.c:660
+#: src/pv/transfer.c:663
 msgid "no transfer buffer allocated"
 msgstr "brak zaalokowanego bufora transferu"
 
-#: src/pv/transfer.c:702
+#: src/pv/transfer.c:751
 msgid "failed to set interval timer"
 msgstr "nie udało się ustawić interwału czasowego"
 
 # "Przewidywany czas ukończenia" for ETA is too long
-#: src/pv/transfer.c:728
+#: src/pv/transfer.c:777
 msgid "failed to clear interval timer"
 msgstr "nie udało się wyczyścić interwału czasowego"
 
-#: src/pv/transfer.c:770
+#: src/pv/transfer.c:822
 msgid "line position buffer allocation failed"
 msgstr "alokacja buforu pozycji linii nie powiodła się"
 
-#: src/pv/transfer.c:944
+#: src/pv/transfer.c:996
 msgid "write failed"
 msgstr "błąd zapisu"
 
-#: src/pv/transfer.c:1185
+#: src/pv/transfer.c:1237
 msgid "select call failed"
 msgstr "nie udało się wywołać funkcji select"
 
-#: src/pv/watchpid.c:129 src/pv/watchpid.c:203
+#: src/pv/watchpid.c:131 src/pv/watchpid.c:205
 msgid "not a regular file or block device"
 msgstr "plik nie jest plikiem regularnym lub urządzeniem blokowym"
+
+#~ msgid "process list allocation failed"
+#~ msgstr "nie udało się zaalokować listy procesów"
+
+#~ msgid "file descriptor list allocation failed"
+#~ msgstr "nie udało się zaalokować listy deskryptorów plików"
+
+#~ msgid "PID[:FD]"
+#~ msgstr "PID[:FD]"

po/pt.po

@@ -6,7 +6,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: https://codeberg.org/ivarch/pv/issues\n"
-"POT-Creation-Date: 2025-10-11 16:00+0100\n"
+"POT-Creation-Date: 2025-11-21 23:45+0000\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"
@@ -171,8 +171,8 @@ msgstr "gera dados mesmo que a saída de erro seja redirecionada"
 msgid "use cursor positioning escape sequences"
 msgstr "utiliza caracteres de escape para posicionar o cursor"
 
-#: src/main/help.c:327 src/main/help.c:357 src/main/help.c:369
-#: src/main/help.c:379
+#: src/main/help.c:327 src/main/help.c:360 src/main/help.c:376
+#: src/main/help.c:386
 msgid "FILE"
 msgstr ""
 
@@ -221,71 +221,79 @@ msgid "use direct I/O to bypass cache"
 msgstr ""
 
 #: src/main/help.c:355
-msgid "discard input instead of writing to output"
+msgid "try to seek instead of writing null bytes"
 msgstr ""
 
 #: src/main/help.c:358
-msgid "write all input to FILE before writing to output"
-msgstr ""
-
-#: src/main/help.c:360
-msgid "PID[:FD]"
+msgid "discard input instead of writing to output"
 msgstr ""
 
 #: src/main/help.c:361
-msgid "watch file FD opened by process PID"
-msgstr "assistir arquivo FD aberto pelo processo PID"
+msgid "write all input to FILE before writing to output"
+msgstr ""
 
 #: src/main/help.c:364
-msgid "PID"
+msgid "PID[:FD]|=NAME|@LISTFILE"
 msgstr ""
 
 #: src/main/help.c:365
+msgid "watch file FD opened by process PID"
+msgstr "assistir arquivo FD aberto pelo processo PID"
+
+#: src/main/help.c:368 src/main/help.c:371
+msgid "PID"
+msgstr ""
+
+#: src/main/help.c:369
 msgid "update settings of process PID"
 msgstr "atualizar as configurações do processo PID"
 
-#: src/main/help.c:370
+#: src/main/help.c:372
+msgid "show progress of process PID"
+msgstr ""
+
+#: src/main/help.c:377
 msgid "save process ID in FILE"
 msgstr "salvar ID do processo em FILE"
 
-#: src/main/help.c:373
+#: src/main/help.c:380
 msgid "show this help and exit"
 msgstr "exibe esta tela de ajuda e termina"
 
-#: src/main/help.c:376
+#: src/main/help.c:383
 msgid "show version information and exit"
 msgstr "exibe a versão e termina"
 
-#: src/main/help.c:380
+#: src/main/help.c:387
 msgid "write debug logs to FILE"
 msgstr ""
 
-#: src/main/help.c:406
+#: src/main/help.c:413
 #, c-format
 msgid "Usage: %s [OPTION] [FILE]..."
 msgstr "Uso: %s [OPÇÕES] [ARQUIVOS]..."
 
-#: src/main/help.c:417
+#: src/main/help.c:424
 msgid ""
 "Concatenate FILE(s), or standard input, to standard output, with monitoring."
 msgstr ""
 "Concatena ARQUIVO(s) ou a entrada padrão e grava na saída padrão, com "
 "monitoramento."
 
-#: src/main/help.c:555
+#: src/main/help.c:562
 msgid "Supported format sequences:"
 msgstr ""
 
-#: src/main/help.c:569
+#: src/main/help.c:576
 #, c-format
 msgid "Please report any bugs to: %s"
 msgstr "Por favor, reporte quaisquer defeitos para %s"
 
-#: src/main/main.c:232
+#: src/main/main.c:228
 msgid "(input)"
 msgstr ""
 
-#: src/main/main.c:334
+#: src/main/main.c:330
 msgid "state allocation failed"
 msgstr "alocação de memória de status falhou"
 
@@ -293,11 +301,11 @@ msgstr "alocação de memória de status falhou"
 msgid "list files may not contain @ lines"
 msgstr ""
 
-#: src/main/options.c:391 src/main/options.c:393 src/main/options.c:802
+#: src/main/options.c:391 src/main/options.c:393 src/main/options.c:807
 msgid "process ID or pid:fd pair expected"
 msgstr "ID do processo ou par pid:fd esperado"
 
-#: src/main/options.c:403 src/main/options.c:405 src/main/options.c:809
+#: src/main/options.c:403 src/main/options.c:405 src/main/options.c:814
 msgid "invalid process ID"
 msgstr "ID de processo inválido"
 
@@ -325,45 +333,45 @@ msgstr ""
 msgid "failed to determine size of block device"
 msgstr ""
 
-#: src/main/options.c:649
+#: src/main/options.c:652
 msgid "option structure allocation failed"
 msgstr "erro na alocação da estrutura de opções"
 
-#: src/main/options.c:668
+#: src/main/options.c:671
 msgid "option structure argv allocation failed"
 msgstr "erro na alocação da estrutura de opções argv"
 
-#: src/main/options.c:720
+#: src/main/options.c:723
 msgid "numeric value not understood"
 msgstr ""
 
-#: src/main/options.c:738
+#: src/main/options.c:743
 msgid "integer argument expected"
 msgstr "argumento inteiro esperado"
 
-#: src/main/options.c:750
+#: src/main/options.c:755
 msgid "numeric argument expected"
 msgstr "argumento numérico esperado"
 
-#: src/main/options.c:762
+#: src/main/options.c:767
 msgid "missing filename"
 msgstr ""
 
-#: src/main/options.c:790
+#: src/main/options.c:795
 msgid "missing process name"
 msgstr ""
 
-#: src/main/options.c:1042
+#: src/main/options.c:1056
 #, c-format
 msgid "Try `%s --help' for more information."
 msgstr "Tente `%s --help' para maiores informações."
 
-#: src/main/options.c:1044
+#: src/main/options.c:1058
 #, c-format
 msgid "Try `%s -h' for more information."
 msgstr "Tente `%s -h' para maiores informações."
 
-#: src/main/options.c:1075
+#: src/main/options.c:1089
 msgid ""
 "cannot use line mode or transfer modifier options when watching file "
 "descriptors"
@@ -371,31 +379,35 @@ msgstr ""
 "não pode usar o modo de linha ou opções de modificador de transferência ao "
 "assistir os descritores de arquivo"
 
-#: src/main/options.c:1084
+#: src/main/options.c:1098
 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:1093
+#: src/main/options.c:1107
 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:1102
+#: src/main/options.c:1116
+msgid "cannot use remote query when watching file descriptors"
+msgstr ""
+
+#: src/main/options.c:1125
 msgid "cannot transfer files when watching file descriptors"
 msgstr "não pode transferir arquivos ao assistir descritores de arquivo"
 
-#: src/main/options.c:1127
+#: src/main/options.c:1150
 msgid "not available on systems without /proc/self/fdinfo"
 msgstr "não disponível em sistemas sem /proc/self/fdinfo"
 
-#: src/main/remote.c:309
-msgid "message not received"
-msgstr "mensagem não recebida"
+#: src/main/options.c:1162
+msgid "cannot use remote control and remote query together"
+msgstr ""
 
-#: src/main/remote.c:444
-msgid "SA_SIGINFO not supported on this system"
-msgstr "SA_SIGINFO não suportado neste sistema"
+#: src/main/options.c:1189
+msgid "files cannot be specified with this option"
+msgstr ""
 
 #: src/main/version.c:28
 msgid "License: GPLv3+ <https://www.gnu.org/licenses/gpl-3.0.html>"
@@ -437,7 +449,7 @@ msgstr ""
 msgid "yzafpnum KMGTPEZY"
 msgstr ""
 
-#: src/pv/display.c:1053 src/pv/loop.c:747 src/pv/transfer.c:1083
+#: src/pv/display.c:1053 src/pv/state.c:842 src/pv/transfer.c:1135
 msgid "buffer allocation failed"
 msgstr "erro alocando o buffer"
 
@@ -470,7 +482,7 @@ msgid "(stdin)"
 msgstr ""
 
 #: src/pv/format/averagerate.c:34 src/pv/format/progressbar.c:92
-#: src/pv/format/rate.c:36 src/pv/loop.c:565
+#: src/pv/format/rate.c:36 src/pv/loop.c:121
 msgid "b/s"
 msgstr ""
 
@@ -480,7 +492,7 @@ msgid "/s"
 msgstr ""
 
 #: src/pv/format/averagerate.c:38 src/pv/format/progressbar.c:96
-#: src/pv/format/rate.c:40 src/pv/loop.c:565
+#: src/pv/format/rate.c:40 src/pv/loop.c:121
 msgid "B/s"
 msgstr "B/s"
 
@@ -500,48 +512,44 @@ msgstr "ETA"
 msgid "FIN"
 msgstr ""
 
-#: src/pv/loop.c:564
+#: src/pv/loop.c:120
 msgid "rate min/avg/max/mdev"
 msgstr ""
 
-#: src/pv/loop.c:576
+#: src/pv/loop.c:132
 msgid "rate not measured"
 msgstr ""
 
-#: src/pv/loop.c:768 src/pv/loop.c:784 src/pv/loop.c:802 src/pv/watchpid.c:99
-#: src/pv/watchpid.c:108 src/pv/watchpid.c:119 src/pv/watchpid.c:127
-#: src/pv/watchpid.c:164 src/pv/watchpid.c:183 src/pv/watchpid.c:191
-#: src/pv/watchpid.c:201 src/pv/watchpid.c:299 src/pv/watchpid.c:307
-#: src/pv/watchpid.c:439 src/pv/watchpid.c:462
+#: src/pv/loop.c:802 src/pv/loop.c:818 src/pv/loop.c:836 src/pv/watchpid.c:101
+#: src/pv/watchpid.c:110 src/pv/watchpid.c:121 src/pv/watchpid.c:129
+#: src/pv/watchpid.c:166 src/pv/watchpid.c:185 src/pv/watchpid.c:193
+#: src/pv/watchpid.c:203 src/pv/watchpid.c:307 src/pv/watchpid.c:315
+#: src/pv/watchpid.c:447 src/pv/watchpid.c:470
 msgid "pid"
 msgstr ""
 
-#: src/pv/loop.c:802 src/pv/watchpid.c:108 src/pv/watchpid.c:120
-#: src/pv/watchpid.c:129 src/pv/watchpid.c:183 src/pv/watchpid.c:192
-#: src/pv/watchpid.c:203
+#: src/pv/loop.c:836 src/pv/watchpid.c:110 src/pv/watchpid.c:122
+#: src/pv/watchpid.c:131 src/pv/watchpid.c:185 src/pv/watchpid.c:194
+#: src/pv/watchpid.c:205
 msgid "fd"
 msgstr ""
 
+#: src/pv/remote.c:237 src/pv/remote.c:622
+msgid "message not received"
+msgstr "mensagem não recebida"
+
+#: src/pv/remote.c:644 src/pv/remote.c:662
+msgid "SA_SIGINFO not supported on this system"
+msgstr "SA_SIGINFO não suportado neste sistema"
+
 #: src/pv/state.c:42
 msgid "history structure allocation failed"
 msgstr ""
 
-#: src/pv/state.c:685 src/pv/state.c:697
+#: src/pv/state.c:794 src/pv/state.c:806
 msgid "file list allocation failed"
 msgstr ""
 
-#: src/pv/state.c:731
-#, fuzzy
-#| msgid "state allocation failed"
-msgid "process list allocation failed"
-msgstr "alocação de memória de status falhou"
-
-#: src/pv/state.c:739
-#, fuzzy
-#| msgid "state allocation failed"
-msgid "file descriptor list allocation failed"
-msgstr "alocação de memória de status falhou"
-
 #: src/pv/transfer.c:490
 msgid "read failed"
 msgstr "erro de leitura"
@@ -562,30 +570,30 @@ msgstr "não pode ir além do erro"
 msgid "skipped past read error"
 msgstr "ignorado erro de leitura"
 
-#: src/pv/transfer.c:660
+#: src/pv/transfer.c:663
 msgid "no transfer buffer allocated"
 msgstr ""
 
-#: src/pv/transfer.c:702
+#: src/pv/transfer.c:751
 msgid "failed to set interval timer"
 msgstr ""
 
-#: src/pv/transfer.c:728
+#: src/pv/transfer.c:777
 msgid "failed to clear interval timer"
 msgstr ""
 
-#: src/pv/transfer.c:770
+#: src/pv/transfer.c:822
 msgid "line position buffer allocation failed"
 msgstr ""
 
-#: src/pv/transfer.c:944
+#: src/pv/transfer.c:996
 msgid "write failed"
 msgstr "erro de gravação"
 
-#: src/pv/transfer.c:1185
+#: src/pv/transfer.c:1237
 msgid "select call failed"
 msgstr "erro na chamada da função select"
 
-#: src/pv/watchpid.c:129 src/pv/watchpid.c:203
+#: src/pv/watchpid.c:131 src/pv/watchpid.c:205
 msgid "not a regular file or block device"
 msgstr "não é um arquivo regular ou dispositivo de bloqueio"

po/ru.po

@@ -1,7 +1,7 @@
 msgid ""
 msgstr ""
 "Report-Msgid-Bugs-To: https://codeberg.org/ivarch/pv/issues\n"
-"POT-Creation-Date: 2025-10-11 16:00+0100\n"
+"POT-Creation-Date: 2025-11-21 23:45+0000\n"
 "PO-Revision-Date: 2025-01-15 19:08+0000\n"
 "Last-Translator: 0ko <0ko@users.noreply.translate.codeberg.org>\n"
 "Language-Team: Russian <https://translate.codeberg.org/projects/pv/pv/ru/>\n"
@@ -170,8 +170,8 @@ msgid "use cursor positioning escape sequences"
 msgstr ""
 "использовать символьные последовательности для позиционирования курсора"
 
-#: src/main/help.c:327 src/main/help.c:357 src/main/help.c:369
-#: src/main/help.c:379
+#: src/main/help.c:327 src/main/help.c:360 src/main/help.c:376
+#: src/main/help.c:386
 msgid "FILE"
 msgstr "ФАЙЛ"
 
@@ -220,69 +220,77 @@ msgid "use direct I/O to bypass cache"
 msgstr "использовать прямой ввод/вывод для обхода кеша"
 
 #: src/main/help.c:355
+msgid "try to seek instead of writing null bytes"
+msgstr ""
+
+#: src/main/help.c:358
 msgid "discard input instead of writing to output"
 msgstr "отбрасывать ввод вместо записи в вывод"
 
-#: src/main/help.c:358
+#: src/main/help.c:361
 msgid "write all input to FILE before writing to output"
 msgstr "записывать весь ввод в ФАЙЛ прежде, чем отправлять на вывод"
 
-#: src/main/help.c:360
-msgid "PID[:FD]"
-msgstr "ИДпр[:FD]"
+#: src/main/help.c:364
+msgid "PID[:FD]|=NAME|@LISTFILE"
+msgstr ""
 
-#: src/main/help.c:361
+#: src/main/help.c:365
 msgid "watch file FD opened by process PID"
 msgstr "следить за FD файла, открытого процессом ИДпр"
 
-#: src/main/help.c:364
+#: src/main/help.c:368 src/main/help.c:371
 msgid "PID"
 msgstr "ИДпр"
 
-#: src/main/help.c:365
+#: src/main/help.c:369
 msgid "update settings of process PID"
 msgstr "обновить настройки ИДпр процесса"
 
-#: src/main/help.c:370
+#: src/main/help.c:372
+msgid "show progress of process PID"
+msgstr ""
+
+#: src/main/help.c:377
 msgid "save process ID in FILE"
 msgstr "сохранить ИД процесса в ФАЙЛ"
 
-#: src/main/help.c:373
+#: src/main/help.c:380
 msgid "show this help and exit"
 msgstr "показать справку и завершить работу"
 
-#: src/main/help.c:376
+#: src/main/help.c:383
 msgid "show version information and exit"
 msgstr "показать версию программы и завершить работу"
 
-#: src/main/help.c:380
+#: src/main/help.c:387
 msgid "write debug logs to FILE"
 msgstr "вести запись отладочного журнала в ФАЙЛ"
 
-#: src/main/help.c:406
+#: src/main/help.c:413
 #, c-format
 msgid "Usage: %s [OPTION] [FILE]..."
 msgstr "Использование: %s [ОПЦИИ] [ФАЙЛ]..."
 
-#: src/main/help.c:417
+#: src/main/help.c:424
 msgid ""
 "Concatenate FILE(s), or standard input, to standard output, with monitoring."
 msgstr ""
 
-#: src/main/help.c:555
+#: src/main/help.c:562
 msgid "Supported format sequences:"
 msgstr "Поддерживаемые последовательности:"
 
-#: src/main/help.c:569
+#: src/main/help.c:576
 #, c-format
 msgid "Please report any bugs to: %s"
 msgstr "Сообщайте о проблемах на: %s"
 
-#: src/main/main.c:232
+#: src/main/main.c:228
 msgid "(input)"
 msgstr "(ввод)"
 
-#: src/main/main.c:334
+#: src/main/main.c:330
 msgid "state allocation failed"
 msgstr ""
 
@@ -290,11 +298,11 @@ msgstr ""
 msgid "list files may not contain @ lines"
 msgstr ""
 
-#: src/main/options.c:391 src/main/options.c:393 src/main/options.c:802
+#: src/main/options.c:391 src/main/options.c:393 src/main/options.c:807
 msgid "process ID or pid:fd pair expected"
 msgstr "ожидался ИД процесса или пара ИДпр:ДФ"
 
-#: src/main/options.c:403 src/main/options.c:405 src/main/options.c:809
+#: src/main/options.c:403 src/main/options.c:405 src/main/options.c:814
 msgid "invalid process ID"
 msgstr "неправильный ИД процесса"
 
@@ -322,73 +330,77 @@ msgstr "не удалось открыть блочное устройство"
 msgid "failed to determine size of block device"
 msgstr "не удалось определить размер блочного устройства"
 
-#: src/main/options.c:649
+#: src/main/options.c:652
 msgid "option structure allocation failed"
 msgstr "не удалось выделить память для структуры опций"
 
-#: src/main/options.c:668
+#: src/main/options.c:671
 msgid "option structure argv allocation failed"
 msgstr "не удалось выделить память для структуры опций argv"
 
-#: src/main/options.c:720
+#: src/main/options.c:723
 msgid "numeric value not understood"
 msgstr "число не распознано"
 
-#: src/main/options.c:738
+#: src/main/options.c:743
 msgid "integer argument expected"
 msgstr "ожидалось целое число"
 
-#: src/main/options.c:750
+#: src/main/options.c:755
 msgid "numeric argument expected"
 msgstr "ожидалось число"
 
-#: src/main/options.c:762
+#: src/main/options.c:767
 msgid "missing filename"
 msgstr ""
 
-#: src/main/options.c:790
+#: src/main/options.c:795
 msgid "missing process name"
 msgstr ""
 
-#: src/main/options.c:1042
+#: src/main/options.c:1056
 #, c-format
 msgid "Try `%s --help' for more information."
 msgstr "Выполните `%s --help' для получения подробностей."
 
-#: src/main/options.c:1044
+#: src/main/options.c:1058
 #, c-format
 msgid "Try `%s -h' for more information."
 msgstr "Выполните `%s -h' для получения подробностей."
 
-#: src/main/options.c:1075
+#: src/main/options.c:1089
 msgid ""
 "cannot use line mode or transfer modifier options when watching file "
 "descriptors"
 msgstr ""
 
-#: src/main/options.c:1084
+#: src/main/options.c:1098
 msgid "cannot use cursor positioning when watching file descriptors"
 msgstr ""
 
-#: src/main/options.c:1093
+#: src/main/options.c:1107
 msgid "cannot use remote control when watching file descriptors"
 msgstr "удалённое управление невозможно при отслеживании дескрипторов файлов"
 
-#: src/main/options.c:1102
+#: src/main/options.c:1116
+msgid "cannot use remote query when watching file descriptors"
+msgstr ""
+
+#: src/main/options.c:1125
 msgid "cannot transfer files when watching file descriptors"
 msgstr "передача файлов невозможна при отслеживании дескрипторов файлов"
 
-#: src/main/options.c:1127
+#: src/main/options.c:1150
 msgid "not available on systems without /proc/self/fdinfo"
 msgstr "невозможно на системах без /proc/self/fdinfo"
 
-#: src/main/remote.c:309
-msgid "message not received"
-msgstr "сообщение не получено"
+#: src/main/options.c:1162
+msgid "cannot use remote control and remote query together"
+msgstr ""
 
-#: src/main/remote.c:444
-msgid "SA_SIGINFO not supported on this system"
-msgstr "Этой системой не поддерживается SA_SIGINFO"
+#: src/main/options.c:1189
+msgid "files cannot be specified with this option"
+msgstr ""
 
 #: src/main/version.c:28
 msgid "License: GPLv3+ <https://www.gnu.org/licenses/gpl-3.0.html>"
@@ -432,7 +444,7 @@ msgstr ""
 msgid "yzafpnum KMGTPEZY"
 msgstr ""
 
-#: src/pv/display.c:1053 src/pv/loop.c:747 src/pv/transfer.c:1083
+#: src/pv/display.c:1053 src/pv/state.c:842 src/pv/transfer.c:1135
 msgid "buffer allocation failed"
 msgstr "не удалось выделить память для буфера"
 
@@ -465,7 +477,7 @@ msgid "(stdin)"
 msgstr "(стд. ввод)"
 
 #: src/pv/format/averagerate.c:34 src/pv/format/progressbar.c:92
-#: src/pv/format/rate.c:36 src/pv/loop.c:565
+#: src/pv/format/rate.c:36 src/pv/loop.c:121
 msgid "b/s"
 msgstr "бит/с"
 
@@ -475,7 +487,7 @@ msgid "/s"
 msgstr "/с"
 
 #: src/pv/format/averagerate.c:38 src/pv/format/progressbar.c:96
-#: src/pv/format/rate.c:40 src/pv/loop.c:565
+#: src/pv/format/rate.c:40 src/pv/loop.c:121
 msgid "B/s"
 msgstr "байт/с"
 
@@ -495,48 +507,44 @@ msgstr "ОЖИД"
 msgid "FIN"
 msgstr "ЗАВЕРШ"
 
-#: src/pv/loop.c:564
+#: src/pv/loop.c:120
 msgid "rate min/avg/max/mdev"
 msgstr "скор. мин/сред/макс/дев"
 
-#: src/pv/loop.c:576
+#: src/pv/loop.c:132
 msgid "rate not measured"
 msgstr "скорость не изменяется"
 
-#: src/pv/loop.c:768 src/pv/loop.c:784 src/pv/loop.c:802 src/pv/watchpid.c:99
-#: src/pv/watchpid.c:108 src/pv/watchpid.c:119 src/pv/watchpid.c:127
-#: src/pv/watchpid.c:164 src/pv/watchpid.c:183 src/pv/watchpid.c:191
-#: src/pv/watchpid.c:201 src/pv/watchpid.c:299 src/pv/watchpid.c:307
-#: src/pv/watchpid.c:439 src/pv/watchpid.c:462
+#: src/pv/loop.c:802 src/pv/loop.c:818 src/pv/loop.c:836 src/pv/watchpid.c:101
+#: src/pv/watchpid.c:110 src/pv/watchpid.c:121 src/pv/watchpid.c:129
+#: src/pv/watchpid.c:166 src/pv/watchpid.c:185 src/pv/watchpid.c:193
+#: src/pv/watchpid.c:203 src/pv/watchpid.c:307 src/pv/watchpid.c:315
+#: src/pv/watchpid.c:447 src/pv/watchpid.c:470
 msgid "pid"
 msgstr "ИДпр"
 
-#: src/pv/loop.c:802 src/pv/watchpid.c:108 src/pv/watchpid.c:120
-#: src/pv/watchpid.c:129 src/pv/watchpid.c:183 src/pv/watchpid.c:192
-#: src/pv/watchpid.c:203
+#: src/pv/loop.c:836 src/pv/watchpid.c:110 src/pv/watchpid.c:122
+#: src/pv/watchpid.c:131 src/pv/watchpid.c:185 src/pv/watchpid.c:194
+#: src/pv/watchpid.c:205
 msgid "fd"
 msgstr "дф"
 
+#: src/pv/remote.c:237 src/pv/remote.c:622
+msgid "message not received"
+msgstr "сообщение не получено"
+
+#: src/pv/remote.c:644 src/pv/remote.c:662
+msgid "SA_SIGINFO not supported on this system"
+msgstr "Этой системой не поддерживается SA_SIGINFO"
+
 #: src/pv/state.c:42
 msgid "history structure allocation failed"
 msgstr "не удалось выделить память для структуры истории"
 
-#: src/pv/state.c:685 src/pv/state.c:697
+#: src/pv/state.c:794 src/pv/state.c:806
 msgid "file list allocation failed"
 msgstr "не удалось выделить память для списка файлов"
 
-#: src/pv/state.c:731
-#, fuzzy
-#| msgid "file list allocation failed"
-msgid "process list allocation failed"
-msgstr "не удалось выделить память для списка файлов"
-
-#: src/pv/state.c:739
-#, fuzzy
-#| msgid "file list allocation failed"
-msgid "file descriptor list allocation failed"
-msgstr "не удалось выделить память для списка файлов"
-
 #: src/pv/transfer.c:490
 msgid "read failed"
 msgstr "чтение не удалось"
@@ -557,30 +565,33 @@ msgstr ""
 msgid "skipped past read error"
 msgstr ""
 
-#: src/pv/transfer.c:660
+#: src/pv/transfer.c:663
 msgid "no transfer buffer allocated"
 msgstr "не выделена память для буфера передачи"
 
-#: src/pv/transfer.c:702
+#: src/pv/transfer.c:751
 msgid "failed to set interval timer"
 msgstr "не удалось задать измеритель временного промежутка"
 
-#: src/pv/transfer.c:728
+#: src/pv/transfer.c:777
 msgid "failed to clear interval timer"
 msgstr "не удалось очистить измеритель временного промежутка"
 
-#: src/pv/transfer.c:770
+#: src/pv/transfer.c:822
 msgid "line position buffer allocation failed"
 msgstr ""
 
-#: src/pv/transfer.c:944
+#: src/pv/transfer.c:996
 msgid "write failed"
 msgstr "запись не удалась"
 
-#: src/pv/transfer.c:1185
+#: src/pv/transfer.c:1237
 msgid "select call failed"
 msgstr "запрос выборки не удался"
 
-#: src/pv/watchpid.c:129 src/pv/watchpid.c:203
+#: src/pv/watchpid.c:131 src/pv/watchpid.c:205
 msgid "not a regular file or block device"
 msgstr "не является обычным файлом или блочным устройством"
+
+#~ msgid "PID[:FD]"
+#~ msgstr "ИДпр[:FD]"

po/tr.po

@@ -2,7 +2,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: pv 1.8.14\n"
 "Report-Msgid-Bugs-To: https://codeberg.org/ivarch/pv/issues\n"
-"POT-Creation-Date: 2025-10-11 16:00+0100\n"
+"POT-Creation-Date: 2025-11-21 23:45+0000\n"
 "PO-Revision-Date: 2025-10-05 20:09+0000\n"
 "Last-Translator: Oğuz Ersen <ersen@noreply.codeberg.org>\n"
 "Language-Team: Turkish <https://translate.codeberg.org/projects/pv/pv/tr/>\n"
@@ -169,8 +169,8 @@ msgstr "standart hata bir terminal olmasa bile çıktı yazdır"
 msgid "use cursor positioning escape sequences"
 msgstr "imleç konumlandırma kaçış dizilerini kullan"
 
-#: src/main/help.c:327 src/main/help.c:357 src/main/help.c:369
-#: src/main/help.c:379
+#: src/main/help.c:327 src/main/help.c:360 src/main/help.c:376
+#: src/main/help.c:386
 msgid "FILE"
 msgstr "DOSYA"
 
@@ -219,70 +219,78 @@ msgid "use direct I/O to bypass cache"
 msgstr "Önbelleği atlamak için doğrudan I/O kullan"
 
 #: src/main/help.c:355
+msgid "try to seek instead of writing null bytes"
+msgstr ""
+
+#: src/main/help.c:358
 msgid "discard input instead of writing to output"
 msgstr "Girdiyi çıktıya yazmak yerine yok say"
 
-#: src/main/help.c:358
+#: src/main/help.c:361
 msgid "write all input to FILE before writing to output"
 msgstr "çıktıya yazmadan önce tüm girdiyi DOSYA'ya yaz"
 
-#: src/main/help.c:360
-msgid "PID[:FD]"
-msgstr "PID[:FD]"
+#: src/main/help.c:364
+msgid "PID[:FD]|=NAME|@LISTFILE"
+msgstr ""
 
-#: src/main/help.c:361
+#: src/main/help.c:365
 msgid "watch file FD opened by process PID"
 msgstr "FD izleme dosyası PID işlemi tarafından açıldı"
 
-#: src/main/help.c:364
+#: src/main/help.c:368 src/main/help.c:371
 msgid "PID"
 msgstr "PID"
 
-#: src/main/help.c:365
+#: src/main/help.c:369
 msgid "update settings of process PID"
 msgstr "süreç PID ayarlarını güncelle"
 
-#: src/main/help.c:370
+#: src/main/help.c:372
+msgid "show progress of process PID"
+msgstr ""
+
+#: src/main/help.c:377
 msgid "save process ID in FILE"
 msgstr "FILE'da işlem kimliğini (ID) kaydet"
 
-#: src/main/help.c:373
+#: src/main/help.c:380
 msgid "show this help and exit"
 msgstr "bu yardımı göster ve çık"
 
-#: src/main/help.c:376
+#: src/main/help.c:383
 msgid "show version information and exit"
 msgstr "sürüm bilgilerini göster ve çık"
 
-#: src/main/help.c:380
+#: src/main/help.c:387
 msgid "write debug logs to FILE"
 msgstr "Hata ayıklama kayıtlarını DOSYA'ya yaz"
 
-#: src/main/help.c:406
+#: src/main/help.c:413
 #, c-format
 msgid "Usage: %s [OPTION] [FILE]..."
 msgstr "Kullanım şekli: %s [AYAR] [DOSYA]..."
 
-#: src/main/help.c:417
+#: src/main/help.c:424
 msgid ""
 "Concatenate FILE(s), or standard input, to standard output, with monitoring."
 msgstr ""
 "İzleme ile DOSYA(lar)ı veya standart girdiyi standart çıktı ile birleştirin."
 
-#: src/main/help.c:555
+#: src/main/help.c:562
 msgid "Supported format sequences:"
 msgstr "Desteklenen biçim dizileri:"
 
-#: src/main/help.c:569
+#: src/main/help.c:576
 #, c-format
 msgid "Please report any bugs to: %s"
 msgstr "Lütfen hataları şu adrese bildirin: %s"
 
-#: src/main/main.c:232
+#: src/main/main.c:228
 msgid "(input)"
 msgstr "(giriş)"
 
-#: src/main/main.c:334
+#: src/main/main.c:330
 msgid "state allocation failed"
 msgstr "durum tahsisi başarısız oldu"
 
@@ -290,11 +298,11 @@ msgstr "durum tahsisi başarısız oldu"
 msgid "list files may not contain @ lines"
 msgstr ""
 
-#: src/main/options.c:391 src/main/options.c:393 src/main/options.c:802
+#: src/main/options.c:391 src/main/options.c:393 src/main/options.c:807
 msgid "process ID or pid:fd pair expected"
 msgstr "süreç kimliği (ID) veya pid:fd çifti bekleniyor"
 
-#: src/main/options.c:403 src/main/options.c:405 src/main/options.c:809
+#: src/main/options.c:403 src/main/options.c:405 src/main/options.c:814
 msgid "invalid process ID"
 msgstr "geçersiz süreç kimliği (ID)"
 
@@ -322,45 +330,45 @@ msgstr "blok aygıtı açılamadı"
 msgid "failed to determine size of block device"
 msgstr "blok aygıtının boyutu belirlenemedi"
 
-#: src/main/options.c:649
+#: src/main/options.c:652
 msgid "option structure allocation failed"
 msgstr "seçenek yapısı tahsisi başarısız oldu"
 
-#: src/main/options.c:668
+#: src/main/options.c:671
 msgid "option structure argv allocation failed"
 msgstr "seçenek yapısı argv tahsisi başarısız oldu"
 
-#: src/main/options.c:720
+#: src/main/options.c:723
 msgid "numeric value not understood"
 msgstr "sayısal değer anlaşılmadı"
 
-#: src/main/options.c:738
+#: src/main/options.c:743
 msgid "integer argument expected"
 msgstr "tamsayı bağımsız değişkeni bekleniyor"
 
-#: src/main/options.c:750
+#: src/main/options.c:755
 msgid "numeric argument expected"
 msgstr "sayısal bağımsız değişken bekleniyor"
 
-#: src/main/options.c:762
+#: src/main/options.c:767
 msgid "missing filename"
 msgstr ""
 
-#: src/main/options.c:790
+#: src/main/options.c:795
 msgid "missing process name"
 msgstr ""
 
-#: src/main/options.c:1042
+#: src/main/options.c:1056
 #, c-format
 msgid "Try `%s --help' for more information."
 msgstr "Daha fazla bilgi için `%s --help' seçeneğini deneyin."
 
-#: src/main/options.c:1044
+#: src/main/options.c:1058
 #, c-format
 msgid "Try `%s -h' for more information."
 msgstr "Daha fazla bilgi için `%s -h' seçeneğini deneyin."
 
-#: src/main/options.c:1075
+#: src/main/options.c:1089
 msgid ""
 "cannot use line mode or transfer modifier options when watching file "
 "descriptors"
@@ -368,29 +376,33 @@ msgstr ""
 "dosya tanımlayıcılarını izlerken satır modu veya aktarım değiştirici "
 "seçeneklerini kullanamaz"
 
-#: src/main/options.c:1084
+#: src/main/options.c:1098
 msgid "cannot use cursor positioning when watching file descriptors"
 msgstr "dosya tanımlayıcılarını izlerken imleç konumlandırmayı kullanamaz"
 
-#: src/main/options.c:1093
+#: src/main/options.c:1107
 msgid "cannot use remote control when watching file descriptors"
 msgstr "dosya tanımlayıcılarını izlerken uzaktan kumandayı kullanamaz"
 
-#: src/main/options.c:1102
+#: src/main/options.c:1116
+msgid "cannot use remote query when watching file descriptors"
+msgstr ""
+
+#: src/main/options.c:1125
 msgid "cannot transfer files when watching file descriptors"
 msgstr "dosya tanımlayıcıları izlenirken dosya aktarılamıyor"
 
-#: src/main/options.c:1127
+#: src/main/options.c:1150
 msgid "not available on systems without /proc/self/fdinfo"
 msgstr "/proc/self/fdinfo olmayan sistemlerde kullanılamaz"
 
-#: src/main/remote.c:309
-msgid "message not received"
-msgstr "mesaj alınamadı"
+#: src/main/options.c:1162
+msgid "cannot use remote control and remote query together"
+msgstr ""
 
-#: src/main/remote.c:444
-msgid "SA_SIGINFO not supported on this system"
-msgstr "SA_SIGINFO bu sistemde desteklenmiyor"
+#: src/main/options.c:1189
+msgid "files cannot be specified with this option"
+msgstr ""
 
 #: src/main/version.c:28
 msgid "License: GPLv3+ <https://www.gnu.org/licenses/gpl-3.0.html>"
@@ -433,7 +445,7 @@ msgstr "yzafpnum kMGTPEZY"
 msgid "yzafpnum KMGTPEZY"
 msgstr "yzafpnum KMGTPEZY"
 
-#: src/pv/display.c:1053 src/pv/loop.c:747 src/pv/transfer.c:1083
+#: src/pv/display.c:1053 src/pv/state.c:842 src/pv/transfer.c:1135
 msgid "buffer allocation failed"
 msgstr "arabellek tahsisi başarısız oldu"
 
@@ -466,7 +478,7 @@ msgid "(stdin)"
 msgstr "(stdin)"
 
 #: src/pv/format/averagerate.c:34 src/pv/format/progressbar.c:92
-#: src/pv/format/rate.c:36 src/pv/loop.c:565
+#: src/pv/format/rate.c:36 src/pv/loop.c:121
 msgid "b/s"
 msgstr "b/s"
 
@@ -476,7 +488,7 @@ msgid "/s"
 msgstr "/s"
 
 #: src/pv/format/averagerate.c:38 src/pv/format/progressbar.c:96
-#: src/pv/format/rate.c:40 src/pv/loop.c:565
+#: src/pv/format/rate.c:40 src/pv/loop.c:121
 msgid "B/s"
 msgstr "B/s"
 
@@ -496,44 +508,44 @@ msgstr "ETA"
 msgid "FIN"
 msgstr "FIN"
 
-#: src/pv/loop.c:564
+#: src/pv/loop.c:120
 msgid "rate min/avg/max/mdev"
 msgstr "oran min/ortalama/maks/standart sapma"
 
-#: src/pv/loop.c:576
+#: src/pv/loop.c:132
 msgid "rate not measured"
 msgstr "oran ölçülmedi"
 
-#: src/pv/loop.c:768 src/pv/loop.c:784 src/pv/loop.c:802 src/pv/watchpid.c:99
-#: src/pv/watchpid.c:108 src/pv/watchpid.c:119 src/pv/watchpid.c:127
-#: src/pv/watchpid.c:164 src/pv/watchpid.c:183 src/pv/watchpid.c:191
-#: src/pv/watchpid.c:201 src/pv/watchpid.c:299 src/pv/watchpid.c:307
-#: src/pv/watchpid.c:439 src/pv/watchpid.c:462
+#: src/pv/loop.c:802 src/pv/loop.c:818 src/pv/loop.c:836 src/pv/watchpid.c:101
+#: src/pv/watchpid.c:110 src/pv/watchpid.c:121 src/pv/watchpid.c:129
+#: src/pv/watchpid.c:166 src/pv/watchpid.c:185 src/pv/watchpid.c:193
+#: src/pv/watchpid.c:203 src/pv/watchpid.c:307 src/pv/watchpid.c:315
+#: src/pv/watchpid.c:447 src/pv/watchpid.c:470
 msgid "pid"
 msgstr "pid"
 
-#: src/pv/loop.c:802 src/pv/watchpid.c:108 src/pv/watchpid.c:120
-#: src/pv/watchpid.c:129 src/pv/watchpid.c:183 src/pv/watchpid.c:192
-#: src/pv/watchpid.c:203
+#: src/pv/loop.c:836 src/pv/watchpid.c:110 src/pv/watchpid.c:122
+#: src/pv/watchpid.c:131 src/pv/watchpid.c:185 src/pv/watchpid.c:194
+#: src/pv/watchpid.c:205
 msgid "fd"
 msgstr "fd"
 
+#: src/pv/remote.c:237 src/pv/remote.c:622
+msgid "message not received"
+msgstr "mesaj alınamadı"
+
+#: src/pv/remote.c:644 src/pv/remote.c:662
+msgid "SA_SIGINFO not supported on this system"
+msgstr "SA_SIGINFO bu sistemde desteklenmiyor"
+
 #: src/pv/state.c:42
 msgid "history structure allocation failed"
 msgstr "geçmiş yapısı tahsisi başarısız oldu"
 
-#: src/pv/state.c:685 src/pv/state.c:697
+#: src/pv/state.c:794 src/pv/state.c:806
 msgid "file list allocation failed"
 msgstr "dosya listesi tahsisi başarısız oldu"
 
-#: src/pv/state.c:731
-msgid "process list allocation failed"
-msgstr "işlem listesi tahsisi başarısız oldu"
-
-#: src/pv/state.c:739
-msgid "file descriptor list allocation failed"
-msgstr "dosya tanımlayıcı listesi tahsisi başarısız oldu"
-
 #: src/pv/transfer.c:490
 msgid "read failed"
 msgstr "okuma başarısız"
@@ -554,30 +566,39 @@ msgstr "geçmiş hatayı aramakta başarısız oldu"
 msgid "skipped past read error"
 msgstr "geçmiş okuma hatası atlandı"
 
-#: src/pv/transfer.c:660
+#: src/pv/transfer.c:663
 msgid "no transfer buffer allocated"
 msgstr "aktarım arabelleği ayrılmamış"
 
-#: src/pv/transfer.c:702
+#: src/pv/transfer.c:751
 msgid "failed to set interval timer"
 msgstr "aralık zamanlayıcısı ayarlanamadı"
 
-#: src/pv/transfer.c:728
+#: src/pv/transfer.c:777
 msgid "failed to clear interval timer"
 msgstr "aralık zamanlayıcısı temizlenemedi"
 
-#: src/pv/transfer.c:770
+#: src/pv/transfer.c:822
 msgid "line position buffer allocation failed"
 msgstr "satır konumu arabellek tahsisi başarısız oldu"
 
-#: src/pv/transfer.c:944
+#: src/pv/transfer.c:996
 msgid "write failed"
 msgstr "yazma başarısız"
 
-#: src/pv/transfer.c:1185
+#: src/pv/transfer.c:1237
 msgid "select call failed"
 msgstr "seçme çağrısı başarısız oldu"
 
-#: src/pv/watchpid.c:129 src/pv/watchpid.c:203
+#: src/pv/watchpid.c:131 src/pv/watchpid.c:205
 msgid "not a regular file or block device"
 msgstr "normal bir dosya veya blok aygıtı değil"
+
+#~ msgid "process list allocation failed"
+#~ msgstr "işlem listesi tahsisi başarısız oldu"
+
+#~ msgid "file descriptor list allocation failed"
+#~ msgstr "dosya tanımlayıcı listesi tahsisi başarısız oldu"
+
+#~ msgid "PID[:FD]"
+#~ msgstr "PID[:FD]"

src/include/config-aux.h

@@ -44,7 +44,7 @@ typedef bool _Bool;
 # define __bool_true_false_are_defined 1
 #endif
 
-/* Whether "--remote" should be available. */
+/* Whether "--remote" and "--query" should be available. */
 #undef PV_REMOTE_CONTROL
 #if HAVE_DECL_SA_SIGINFO
 # if SIGINFO_PROVIDES_PID

src/include/options.h

@@ -30,7 +30,9 @@ typedef enum {
 	PV_ACTION_NOTHING,		/* do nothing, and exit */
 	PV_ACTION_TRANSFER,		/* transfer data */
 	PV_ACTION_STORE_AND_FORWARD,	/* store to file, then output from it */
-	PV_ACTION_WATCHFD		/* watch process file descriptors */
+	PV_ACTION_WATCHFD,		/* watch process file descriptors */
+	PV_ACTION_REMOTE_CONTROL,	/* remotely control another pv */
+	PV_ACTION_QUERY			/* watch the state of another pv */
 } pvaction_t;
 
 /*
@@ -58,6 +60,7 @@ struct opts_s {
 	off_t size;                    /* total size of data */
 	off_t error_skip_block;        /* skip block size, 0 for adaptive */
 	pid_t remote;                  /* PID of pv to update settings of */
+	pid_t query;                   /* PID of pv to query progress of */
 	unsigned int skip_errors;      /* skip read errors counter */
 	unsigned int average_rate_window; /* time window in seconds for average rate calculations */
 	unsigned int width;            /* screen width */
@@ -89,6 +92,7 @@ struct opts_s {
 	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 sparse_output;            /* set if we leave holes in the output */
 	bool discard_input;            /* set to write nothing to output */
 	bool show_stats;	       /* set to write statistics at the end */
 	bool width_set_manually;       /* width was set manually, not detected */

src/include/pv-internal.h

@@ -25,7 +25,7 @@ extern "C" {
 
 #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 REMOTE_INTERVAL		100000000	 /* nsec between checks for -R and -Q */
 #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 */
@@ -131,6 +131,12 @@ typedef uint16_t pvdisplay_bytecount_t;
 typedef uint16_t pvdisplay_width_t;
 #define PVDISPLAY_WIDTH_MAX (65535)	/* UINT16_MAX */
 
+/*
+ * Structure defining the current state of a single watched file descriptor.
+ */
+struct pvwatchfd_s;
+typedef /*@null@*/ struct pvwatchfd_s *pvwatchfd_t;
+
 /* String pointer, that is the only pointer to this resource, that can be null. */
 typedef /*@only@*/ /*@null@*/ char * nullable_string_t;
 
@@ -163,9 +169,15 @@ struct pvstate_s {
 	/*********************************
 	 * Items to watch with --watchfd *
 	 *********************************/
-	struct pvwatchspec_s {
-		/*@only@*/ /*@null@*/ pid_t *pid; /* array of processes to watch fds of */
-		/*@only@*/ /*@null@*/ int *fd;	/* array of fds to watch in each one (0=all) */
+	struct {
+		/*@only@*/ /*@null@*/
+		struct pvwatcheditem_s {	/* array of PID or PID:FD items */
+			pid_t pid;		 /* watched PID */
+			int fd;			 /* watched fd, or -1 for all */
+			pvwatchfd_t info_array;	 /* watch information for each fd */
+			int array_length;	 /* length of watch info array */
+			bool finished;		 /* "PID:FD": fd closed; or PID gone */
+		} *watching;
 		unsigned int count;	/* number of items in these arrays */
 		bool multiple_pids;	/* true if more than one distinct PID */
 	} watchfd;
@@ -179,7 +191,8 @@ struct pvstate_s {
 		double delay_start;              /* delay before first display */
 		/*@only@*/ /*@null@*/ char *name;		 /* display name */
 		/*@only@*/ /*@null@*/ char *format_string;	 /* output format string */
-		/*@only@*/ /*@null@*/ char *extra_format_string; /* extra format string */
+		/*@only@*/ /*@null@*/ char *extra_display_spec;  /* full spec for extra displays */
+		/*@only@*/ /*@null@*/ char *extra_format_string; /* extra format string alone */
 		/*@null@*/ char *output_name;    /* name of the output, for diagnostics */
 		/*@null@*/ char *default_bar_style; /* which bar style to use by default */
 		off_t error_skip_block;          /* skip block size, 0 for adaptive */
@@ -193,6 +206,17 @@ struct pvstate_s {
 		pvdisplay_width_t width;         /* screen width */
 		unsigned int height;             /* screen height */
 		unsigned int extra_displays;	 /* bitmask of extra display destinations */
+		struct {			 /* old-style format options (used by -R) */
+			size_t lastwritten;	  /* --last-written (amount) */
+			bool progress;		  /* --progress */
+			bool timer;		  /* --timer */
+			bool eta;		  /* --eta */
+			bool fineta;		  /* --fineta */
+			bool rate;		  /* --rate */
+			bool average_rate;	  /* --average-rate */
+			bool bytes;		  /* --bytes */
+			bool bufpercent;	  /* --buffer-percent */
+		} format_option;
 		bool force;                      /* display even if not on terminal */
 		bool cursor;                     /* use cursor positioning */
 		bool numeric;                    /* numeric output only */
@@ -203,11 +227,12 @@ struct pvstate_s {
 		bool decimal_units;		 /* use decimal prefixes */
 		bool null_terminated_lines;      /* lines are null-terminated */
 		bool no_display;                 /* do nothing other than pipe data */
+		bool no_splice;                  /* never use splice() */
 		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 sparse_output;		 /* set if we leave holes in the output */
 		bool discard_input;              /* write nothing to stdout */
 		bool show_stats;		 /* show statistics on exit */
 		bool width_set_manually;	 /* width was set manually, not detected */
@@ -229,13 +254,16 @@ struct pvstate_s {
 		struct sigaction old_sigterm;
 #ifdef PV_REMOTE_CONTROL
 		struct sigaction old_sigusr2;
+		struct sigaction old_sigusr1;
 #endif
 		struct sigaction old_sigalrm;
-		struct timespec tstp_time;	 /* see pv_sig_tstp() / __cont() */
-		struct timespec toffset;	 /* total time spent stopped */
+		struct timespec when_tstp_arrived;	 /* see pv_sig_tstp() / __cont() */
+		struct timespec total_stoppage_time;	 /* total time spent stopped */
 #ifdef PV_REMOTE_CONTROL
 		volatile sig_atomic_t rxusr2;	 /* whether SIGUSR2 was received */
-		volatile pid_t sender;		 /* PID of sending process for SIGUSR2 */
+		volatile pid_t sender_usr2;	 /* PID of sending process for SIGUSR2 */
+		volatile sig_atomic_t rxusr1;	 /* whether SIGUSR1 was received */
+		volatile pid_t sender_usr1;	 /* PID of sending process for SIGUSR1 */
 #endif
 	} signal;
 
@@ -372,9 +400,9 @@ struct pvstate_s {
 	 * The transfer buffer is used for moving data from the input files
 	 * to the output when splice() is not available.
 	 *
-	 * If buffer_size is smaller than pv__target_bufsize, then
+	 * If buffer_size is smaller than control.target_buffer_size, then
 	 * pv_transfer() will try to reallocate transfer_buffer to make
-	 * buffer_size equal to pv__target_bufsize.
+	 * buffer_size equal to control.target_buffer_size.
 	 *
 	 * Data from the input files is read into the buffer; read_position
 	 * is the offset in the buffer that we've read data up to.
@@ -437,6 +465,7 @@ struct pvstate_s {
 		bool splice_used;
 #endif
 		bool read_error_warning_shown;
+		bool output_not_seekable;	/* set if lseek() fails on output */
 	} transfer;
 };
 
@@ -451,6 +480,37 @@ typedef struct pvtransfercalc_s *pvtransfercalc_t;
 typedef struct pvcursorstate_s *pvcursorstate_t;
 typedef struct pvtransferstate_s *pvtransferstate_t;
 
+/*
+ * Structure defining the current state of a single watched file descriptor.
+ * The full definition needs to go here as it refers to sub-structures of
+ * the main state, defined above.
+ */
+struct pvwatchfd_s {
+	struct pvtransientflags_s flags;	/* transient flags */
+	struct pvtransferstate_s transfer;	/* transfer state */
+	struct pvtransfercalc_s calc;	 /* calculated transfer state */
+	struct pvdisplay_s display;	 /* display data */
+#ifdef __APPLE__
+#else
+	char file_fdinfo[PV_SIZEOF_FILE_FDINFO]; /* path to /proc fdinfo file */
+	char file_fd[PV_SIZEOF_FILE_FD];	 /* path to /proc fd symlink  */
+#endif
+	char file_fdpath[PV_SIZEOF_FILE_FDPATH]; /* path to file that was opened */
+	/*@keep@ */ 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 */
+	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 */
+	struct timespec end_time;	 /* time the fd was marked as closed */
+	struct timespec total_stoppage_time;	 /* total time spent stopped */
+	pid_t watch_pid;		 /* PID the fd belongs to */
+	int watch_fd;			 /* fd to watch */
+	bool closed;			 /* true once the fd is closed */
+	bool displayable;		 /* false if not displayable */
+	bool unused;			 /* true if free for re-use */
+};
+
 /*
  * Read-only counterparts to the above structure pointers, to be used in
  * function declarations where the function definitely shouldn't be altering
@@ -497,36 +557,6 @@ struct pvdisplay_component_s {
 	bool dynamic;			 /* whether it can scale with screen size */
 };
 
-
-/*
- * Structure defining the current state of a single watched file descriptor.
- */
-struct pvwatchfd_s {
-	struct pvtransientflags_s flags;	/* transient flags */
-	struct pvtransferstate_s transfer;	/* transfer state */
-	struct pvtransfercalc_s calc;	 /* calculated transfer state */
-	struct pvdisplay_s display;	 /* display data */
-#ifdef __APPLE__
-#else
-	char file_fdinfo[PV_SIZEOF_FILE_FDINFO]; /* path to /proc fdinfo file */
-	char file_fd[PV_SIZEOF_FILE_FD];	 /* path to /proc fd symlink  */
-#endif
-	char file_fdpath[PV_SIZEOF_FILE_FDPATH]; /* path to file that was opened */
-	/*@keep@ */ 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 */
-	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 */
-	struct timespec last_active;	 /* time the fd was last seen open (TODO, #81) */
-	pid_t watch_pid;		 /* PID to watch */
-	int watch_fd;			 /* fd to watch */
-	bool displayable;		 /* false if not displayable */
-	bool inactive;			 /* true if the fd is now closed (TODO, #81) */
-	bool unused;			 /* true if free for re-use */
-};
-typedef struct pvwatchfd_s *pvwatchfd_t;
-
 void pv_error(char *, ...);
 
 int pv_main_loop(pvstate_t);
@@ -603,6 +633,7 @@ void pv_freecontents_display(pvdisplay_t);
 void pv_freecontents_transfer(pvtransferstate_t);
 void pv_freecontents_calc(pvtransfercalc_t);
 void pv_freecontents_watchfd(pvwatchfd_t);
+void pv_freecontents_watchfd_items(struct pvwatcheditem_s *, unsigned int);
 
 void pv_write_retry(int, const char *, size_t);
 void pv_tty_write(readonly_pvtransientflags_t, const char *, size_t);
@@ -618,10 +649,7 @@ void pv_sig_allowpause(void);
 void pv_sig_checkbg(void);
 void pv_sig_nopause(void);
 
-void pv_remote_init(pvstate_t);
 bool 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, bool);
 bool pv_watchfd_changed(pvwatchfd_t);

src/include/pv.h

@@ -13,6 +13,7 @@
 #include "config.h"
 #endif
 
+#include <stdio.h>
 #include <stdlib.h>
 #include <stdbool.h>
 #include <signal.h>
@@ -221,6 +222,7 @@ 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_sparse_output_set(pvstate_t, bool);
 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);
@@ -265,8 +267,21 @@ extern void pv_sig_init(pvstate_t);
  * Return true if SIGUSR2 has been received, and indicate the sender.
  */
 extern bool pv_sigusr2_received(pvstate_t, pid_t *);
+
+/*
+ * Return true if SIGUSR1 has been received, and indicate the sender.
+ */
+extern bool pv_sigusr1_received(pvstate_t, pid_t *);
 #endif
 
+/*
+ * Return a stream pointer for a control file associated with a particular
+ * process ID and signal.
+ */
+/*@null@ */
+/*@dependent@ */
+extern FILE *pv_open_controlfile(char *, size_t, pid_t, int, bool);
+
 /*
  * Enter the main transfer loop, transferring all input files to the output.
  */
@@ -277,6 +292,24 @@ extern int pv_main_loop(pvstate_t);
  */
 extern int pv_watchfd_loop(pvstate_t);
 
+/*
+ * Watch the progress of another pv process.
+ */
+extern int pv_query_loop(pvstate_t, pid_t);
+
+/*
+ * Set the options of another pv process.
+ */
+int pv_remote_set(pvstate_t, pid_t);
+
+/*
+ * Query another pv process for its elapsed transfer time, amount
+ * transferred, and total size, and update the local state with those
+ * values.  Optionally also return the total size separately.  Reports
+ * errors unless "silent" is true.
+ */
+int pv_remote_transferstate_fetch(pvstate_t state, pid_t query, /*@null@ */ off_t *sizeptr, bool silent);
+
 /*
  * Shut down signal handlers after running the main loop.
  */

src/main/help.c

@@ -351,19 +351,26 @@ void display_help(void)
 		{ "-K", "--direct-io", NULL,
 		 N_("use direct I/O to bypass cache"),
 		 { 0, 0, 0, 0} },
+		{ "-O", "--sparse", NULL,
+		 N_("try to seek instead of writing null bytes"),
+		 { 0, 0, 0, 0} },
 		{ "-X", "--discard", NULL,
 		 N_("discard input instead of writing to output"),
 		 { 0, 0, 0, 0} },
 		{ "-U", "--store-and-forward", N_("FILE"),
 		 N_("write all input to FILE before writing to output"),
 		 { 0, 0, 0, 0} },
-		{ "-d", "--watchfd", N_("PID[:FD]"),
+		{ "", NULL, NULL, NULL, { 0, 0, 0, 0} },
+		{ "-d", "--watchfd", N_("PID[:FD]|=NAME|@LISTFILE"),
 		 N_("watch file FD opened by process PID"),
 		 { 0, 0, 0, 0} },
 #ifdef PV_REMOTE_CONTROL
 		{ "-R", "--remote", N_("PID"),
 		 N_("update settings of process PID"),
 		 { 0, 0, 0, 0} },
+		{ "-Q", "--query", N_("PID"),
+		 N_("show progress of process PID"),
+		 { 0, 0, 0, 0} },
 #endif				/* PV_REMOTE_CONTROL */
 		{ "", NULL, NULL, NULL, { 0, 0, 0, 0} },
 		{ "-P", "--pidfile", N_("FILE"),

src/main/main.c

@@ -23,10 +23,6 @@
 #include <langinfo.h>
 #endif
 
-int pv_remote_set(opts_t, pvstate_t);
-void pv_remote_init(void);
-void pv_remote_fini(void);
-
 /*
  * Write a PID file, returning nonzero on error.  Write it atomically, such
  * that the file either exists and contains the PID, or is not updated at
@@ -338,23 +334,6 @@ int main(int argc, char **argv)
 		/*@+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.
 	 */
@@ -448,7 +427,12 @@ int main(int argc, char **argv)
 	 * do this before looking at setting the size, as the size
 	 * calculation looks at the output file if the input size can't be
 	 * calculated (issue #91).
+	 *
+	 * We have to set the sparse output flag before doing this, so that
+	 * in sparse mode the lseek() on O_APPEND can be done (issue #45);
+	 * see the comments in pv_state_output_set() in src/pv/state.c.
 	 */
+	pv_state_sparse_output_set(state, opts->sparse_output);
 	retcode = pv__set_output(state, opts, opts->output);
 	if (0 != retcode) {
 		pv_state_free(state);
@@ -485,6 +469,31 @@ int main(int argc, char **argv)
 		}
 	}
 
+	/* Initialise the signal handling. */
+	pv_sig_init(state);
+
+	/*
+	 * Get the total size, in query mode.
+	 *
+	 * Note that this uses signals, so signal handling has to have been
+	 * set up first.
+	 */
+	if (PV_ACTION_QUERY == opts->action) {
+		opts->size = 0;
+		retcode = pv_remote_transferstate_fetch(state, opts->query, &(opts->size), false);
+		if (0 != retcode) {
+			pv_sig_fini(state);
+			pv_state_free(state);
+			opts_free(opts);
+			return retcode;
+		}
+		/* As above - no ETA if the size is unknown. */
+		if (opts->size < 1) {
+			can_have_eta = false;
+			debug("%s", "size unknown - ETA disabled");
+		}
+	}
+
 	/*
 	 * Copy the remaining parameters from the options into the main
 	 * state.
@@ -527,29 +536,30 @@ int main(int argc, char **argv)
 	debug("%s: %s", "terminal_supports_utf8", terminal_supports_utf8 ? "true" : "false");
 	pv_state_set_terminal_supports_utf8(state, terminal_supports_utf8);
 
-	/* Initialise the signal handling. */
-	pv_sig_init(state);
-
 	/* Run the appropriate main loop. */
 	switch (opts->action) {
 	case PV_ACTION_NOTHING:
 		break;
 	case PV_ACTION_TRANSFER:
 		/* Normal "transfer data" mode. */
-		pv_remote_init();
 		retcode = pv_main_loop(state);
-		pv_remote_fini();
 		break;
 	case PV_ACTION_STORE_AND_FORWARD:
 		/* Store-and-forward transfer mode. */
-		pv_remote_init();
 		retcode = pv__store_and_forward(state, opts, can_have_eta);
-		pv_remote_fini();
 		break;
 	case PV_ACTION_WATCHFD:
 		/* "Watch file descriptor(s) of another process" mode. */
 		retcode = pv_watchfd_loop(state);
 		break;
+	case PV_ACTION_REMOTE_CONTROL:
+		/* Change the options of another running pv. */
+		retcode = pv_remote_set(state, opts->remote);
+		break;
+	case PV_ACTION_QUERY:
+		/* Query the progress of another running pv. */
+		retcode = pv_query_loop(state, opts->query);
+		break;
 	}
 
 	/* Clear up the PID file, if one was written. */

src/main/options.c

@@ -612,9 +612,12 @@ opts_t opts_parse(unsigned int argc, char **argv)
 		{ "stop-at-size", 0, NULL, (int) 'S' },
 		{ "sync", 0, NULL, (int) 'Y' },
 		{ "direct-io", 0, NULL, (int) 'K' },
+		{ "sparse", 0, NULL, (int) 'O' },
+		{ "sparse-output", 0, NULL, (int) 'O' },
 		{ "discard", 0, NULL, (int) 'X' },
 		{ "store-and-forward", 1, NULL, (int) 'U' },
 		{ "remote", 1, NULL, (int) 'R' },
+		{ "query", 1, NULL, (int) 'Q' },
 		{ "pidfile", 1, NULL, (int) 'P' },
 		{ "watchfd", 1, NULL, (int) 'd' },
 		{ "output", 1, NULL, (int) 'o' },
@@ -627,7 +630,7 @@ opts_t opts_parse(unsigned int argc, char **argv)
 	/*@+nullassign@ */
 	int option_index = 0;
 #endif				/* HAVE_GETOPT_LONG */
-	char *short_options = "hVpteIrab8kTA:fvnqcWD:s:gl0i:w:H:N:u:F:x:L:B:CEZ:SYKXU:R:P:d:m:o:"
+	char *short_options = "hVpteIrab8kTA:fvnqcWD:s:gl0i:w:H:N:u:F:x:L:B:CEZ:SYKOXU:R:Q:P:d:m:o:"
 #ifdef ENABLE_DEBUGGING
 	    "!:"
 #endif
@@ -731,6 +734,8 @@ opts_t opts_parse(unsigned int argc, char **argv)
 			/*@fallthrough@ */
 		case 'R':
 			/*@fallthrough@ */
+		case 'Q':
+			/*@fallthrough@ */
 		case 'm':
 			if (!pv_getnum_check(optarg, PV_NUMTYPE_BARE_INTEGER)) {
 				/*@-mustfreefresh@ *//* see above */
@@ -972,6 +977,10 @@ opts_t opts_parse(unsigned int argc, char **argv)
 		case 'K':
 			opts->direct_io = true;
 			break;
+		case 'O':
+			opts->sparse_output = true;
+			opts->no_splice = true;
+			break;
 		case 'X':
 			opts->discard_input = true;
 			opts->no_splice = true;
@@ -987,6 +996,11 @@ opts_t opts_parse(unsigned int argc, char **argv)
 			break;
 		case 'R':
 			opts->remote = (pid_t) pv_getnum_count(optarg, false);
+			opts->action = PV_ACTION_REMOTE_CONTROL;
+			break;
+		case 'Q':
+			opts->query = (pid_t) pv_getnum_count(optarg, false);
+			opts->action = PV_ACTION_QUERY;
 			break;
 		case 'P':
 			opts->pidfile = pv_strdup(optarg);
@@ -1096,6 +1110,15 @@ opts_t opts_parse(unsigned int argc, char **argv)
 			/*@+mustfreefresh@ */
 		}
 
+		if (0 != opts->query) {
+			/*@-mustfreefresh@ *//* see above */
+			fprintf(stderr, "%s: %s\n", opts->program_name,
+				_("cannot use remote query when watching file descriptors"));
+			opts_free(opts);
+			return NULL;
+			/*@+mustfreefresh@ */
+		}
+
 		if (NULL != opts->output) {
 			/*@-mustfreefresh@ *//* see above */
 			fprintf(stderr, "%s: -o: %s\n", opts->program_name,
@@ -1132,6 +1155,16 @@ opts_t opts_parse(unsigned int argc, char **argv)
 #endif
 	}
 
+	/* Don't allow -R and -Q together. */
+	if ((0 != opts->remote) && (0 != opts->query)) {
+		/*@-mustfreefresh@ *//* see above */
+		fprintf(stderr, "%s: %s\n", opts->program_name,
+			_("cannot use remote control and remote query together"));
+		opts_free(opts);
+		return NULL;
+		/*@+mustfreefresh@ */
+	}
+
 	/*
 	 * Default options: -pterb
 	 */
@@ -1147,6 +1180,18 @@ opts_t opts_parse(unsigned int argc, char **argv)
 	if (opts->error_skip_block > 0 && 0 == opts->skip_errors)
 		opts->skip_errors = 1;
 
+	/*
+	 * Don't allow any non-option arguments with -R or -Q.
+	 */
+	if ((optind < (int) argc) && ((0 != opts->remote) || (0 != opts->query))) {
+		/*@-mustfreefresh@ *//* see above */
+		fprintf(stderr, "%s: %s: %s\n", opts->program_name, 0 != opts->remote ? "-R" : "-Q",
+			_("files cannot be specified with this option"));
+		opts_free(opts);
+		return NULL;
+		/*@+mustfreefresh@ */
+	}
+
 	/*
 	 * Store remaining command-line arguments.
 	 */

src/main/remote.c

@@ -1,449 +0,0 @@
-/*
- * Remote-control functions.
- *
- * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2025 Andrew Wood
- *
- * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
- */
-
-#include "config.h"
-#include "options.h"
-#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 PV_REMOTE_CONTROL
-void pv_error(char *, ...);
-
-struct remote_msg {
-	bool progress;			 /* progress bar flag */
-	bool timer;			 /* timer flag */
-	bool eta;			 /* ETA flag */
-	bool fineta;			 /* absolute ETA flag */
-	bool rate;			 /* rate counter flag */
-	bool average_rate;		 /* average rate counter flag */
-	bool bytes;			 /* bytes transferred flag */
-	bool bufpercent;		 /* transfer buffer percentage flag */
-	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 */
-	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 */
-	char extra_display[256];	 /* flawfinder: ignore */
-};
-
-/*
- * flawfinder rationale: name, format, and extra_display are always
- * explicitly zeroed and bounded to one less than their size so they are
- * always \0 terminated.
- */
-
-
-/*
- * 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.
- */
-/*@null@ */
-/*@dependent@ */
-static FILE *pv__control_file(char *filename, size_t bufsize, pid_t control_pid, bool sender)
-{
-	int open_flags, open_mode, control_fd;
-	/*@dependent@ */ FILE *control_fptr = NULL;
-
-	open_flags = O_RDONLY;
-#ifdef O_NOFOLLOW
-	open_flags += O_NOFOLLOW;
-#endif
-	if (sender)
-		open_flags = O_WRONLY | O_CREAT | O_EXCL;
-
-	open_mode = 0644;
-
-	(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;
-}
-
-
-/*
- * 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, pvstate_t state)
-{
-	char control_filename[4096];	 /* flawfinder: ignore */
-	FILE *control_fptr;
-	struct remote_msg msgbuf;
-	pid_t signal_sender;
-	long timeout;
-	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) {
-		pv_error("%u: %s", opts->remote, strerror(errno));
-		return PV_ERROREXIT_REMOTE_OR_PID;
-	}
-
-	/*
-	 * Make sure parameters are within sensible bounds.
-	 */
-	if (opts->width < 1)
-		opts->width = 80;
-	if (opts->height < 1)
-		opts->height = 25;
-	if (opts->width > 999999)
-		opts->width = 999999;
-	if (opts->height > 999999)
-		opts->height = 999999;
-	if ((opts->interval > 0) && (opts->interval < 0.1))
-		opts->interval = 0.1;
-	if (opts->interval > 600)
-		opts->interval = 600;
-
-	/*
-	 * Copy parameters into message buffer.
-	 */
-	memset(&msgbuf, 0, sizeof(msgbuf));
-	msgbuf.progress = opts->progress;
-	msgbuf.timer = opts->timer;
-	msgbuf.eta = opts->eta;
-	msgbuf.fineta = opts->fineta;
-	msgbuf.rate = opts->rate;
-	msgbuf.average_rate = opts->average_rate;
-	msgbuf.bytes = opts->bytes;
-	msgbuf.bufpercent = opts->bufpercent;
-	msgbuf.lastwritten = opts->lastwritten;
-	msgbuf.rate_limit = opts->rate_limit;
-	msgbuf.buffer_size = opts->buffer_size;
-	msgbuf.size = opts->size;
-	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);	/* flawfinder: ignore */
-	}
-	if (opts->format != NULL) {
-		strncpy(msgbuf.format, opts->format, sizeof(msgbuf.format) - 1);	/* flawfinder: ignore */
-	}
-	if (opts->extra_display != NULL) {
-		strncpy(msgbuf.extra_display, opts->extra_display, sizeof(msgbuf.extra_display) - 1);	/* flawfinder: ignore */
-	}
-
-	/*
-	 * flawfinder rationale: name, format, and extra_display 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), (pid_t) getpid(), true);
-	if (NULL == control_fptr) {
-		pv_error("%s", strerror(errno));
-		return PV_ERROREXIT_REMOTE_OR_PID;
-	}
-
-	/*
-	 * Write the message buffer to the remote control file, and close
-	 * it.
-	 */
-	if (1 != fwrite(&msgbuf, sizeof(msgbuf), 1, control_fptr)) {
-		pv_error("%s", strerror(errno));
-		(void) fclose(control_fptr);
-		(void) remove(control_filename);
-		return PV_ERROREXIT_REMOTE_OR_PID;
-	}
-
-	if (0 != fclose(control_fptr)) {
-		pv_error("%s", strerror(errno));
-		(void) remove(control_filename);
-		return PV_ERROREXIT_REMOTE_OR_PID;
-	}
-
-	/*
-	 * 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("%u: %s", opts->remote, strerror(errno));
-		(void) remove(control_filename);
-		return PV_ERROREXIT_REMOTE_OR_PID;
-	}
-
-	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 && !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 (pv_sigusr2_received(state, &signal_sender)) {
-			if (signal_sender == opts->remote) {
-				debug("%s", "message received");
-				received = true;
-			}
-		}
-	}
-
-	/*
-	 * Remove the remote control file.
-	 */
-	if (0 != remove(control_filename)) {
-		pv_error("%s", strerror(errno));
-	}
-
-	/*
-	 * 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("%u: %s", opts->remote, _("message not received"));
-	return PV_ERROREXIT_REMOTE_OR_PID;
-	/*@+mustfreefresh @ */
-}
-
-
-/*
- * 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.
- *
- * Returns true if something was received, false otherwise.
- */
-bool pv_remote_check(pvstate_t state)
-{
-	pid_t signal_sender;
-	char control_filename[4096];	 /* flawfinder: ignore */
-	FILE *control_fptr;
-	struct remote_msg msgbuf;
-
-	/* 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 false;
-
-	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("%s: %s", control_filename, strerror(errno));
-		return false;
-	}
-
-	/*
-	 * Read the message buffer from the remote control file, and close
-	 * it.
-	 */
-	if (1 != fread(&msgbuf, sizeof(msgbuf), 1, control_fptr)) {
-		pv_error("%s", strerror(errno));
-		(void) fclose(control_fptr);
-		return false;
-	}
-
-	if (0 != fclose(control_fptr)) {
-		pv_error("%s", strerror(errno));
-		return false;
-	}
-
-	/*
-	 * 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);
-	pv_state_extra_display_set(state, NULL);
-
-	msgbuf.name[sizeof(msgbuf.name) - 1] = '\0';
-	msgbuf.format[sizeof(msgbuf.format) - 1] = '\0';
-	msgbuf.extra_display[sizeof(msgbuf.extra_display) - 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 : msgbuf.name);
-
-	if (msgbuf.rate_limit > 0)
-		pv_state_rate_limit_set(state, msgbuf.rate_limit);
-	if (msgbuf.buffer_size > 0) {
-		pv_state_target_buffer_size_set(state, msgbuf.buffer_size);
-	}
-	if (msgbuf.size > 0)
-		pv_state_size_set(state, msgbuf.size);
-	if (msgbuf.interval > 0)
-		pv_state_interval_set(state, msgbuf.interval);
-	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, msgbuf.format);
-	if (msgbuf.extra_display[0] != '\0')
-		pv_state_extra_display_set(state, msgbuf.extra_display);
-
-	return true;
-}
-
-
-/*
- * Initialise remote message reception handling.
- */
-void pv_remote_init(void)
-{
-}
-
-
-/*
- * Clean up after remote message reception handling.
- */
-void pv_remote_fini(void)
-{
-}
-
-#else				/* !PV_REMOTE_CONTROL */
-
-/*
- * Dummy stubs for remote control when we don't have PV_REMOTE_CONTROL.
- */
-void pv_remote_init(void)
-{
-}
-
-void pv_remote_check( /*@unused@ */  __attribute__((unused)) pvstate_t state)
-{
-}
-
-void pv_remote_fini(void)
-{
-}
-
-int pv_remote_set(			 /*@unused@ */
-			 __attribute__((unused)) opts_t opts, /*@unused@ */  __attribute__((unused)) pvstate_t state)
-{
-	/*@-mustfreefresh@ *//* splint - see above */
-	fprintf(stderr, "%s\n", _("SA_SIGINFO not supported on this system"));
-	/*@+mustfreefresh@ */
-	return PV_ERROREXIT_REMOTE_OR_PID;
-}
-
-#endif				/* SA_SIGINFO */

src/pv/file.c

@@ -464,3 +464,86 @@ int pv_next_file(pvstate_t state, unsigned int filenum, int oldfd)
 	/*@+onlytrans@ */
 	/*@+observertrans@ */
 }
+
+
+/*
+ * Return a stream pointer, and populate the filename buffer, for a control
+ * file associated with a particular process ID, for the given signal
+ * number; it will be opened for writing if "sender" is true.  Returns NULL
+ * on error.
+ */
+/*@null@ */
+/*@dependent@ */
+FILE *pv_open_controlfile(char *filename, size_t bufsize, pid_t control_pid, int signum, bool sender)
+{
+	int open_flags, open_mode, control_fd;
+	/*@dependent@ */ FILE *control_fptr = NULL;
+
+	open_flags = O_RDONLY;
+#ifdef O_NOFOLLOW
+	open_flags += O_NOFOLLOW;
+#endif
+	if (sender)
+		open_flags = O_WRONLY | O_CREAT | O_EXCL;
+
+	open_mode = 0644;
+
+	(void) pv_snprintf(filename, bufsize, "/run/user/%lu/pv.remote.%d.%lu", (unsigned long) geteuid(), signum,
+			   (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.%d.%lu", home_dir, signum,
+				   (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.%d.%lu", home_dir, signum,
+					   (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;
+}

src/pv/loop.c

@@ -28,6 +28,8 @@
 #include <math.h>
 #endif
 
+int pv_remote_transferstate_fetch(pvstate_t, pid_t, /*@null@ */ off_t *, bool);
+
 
 #if HAVE_SQRTL
 #else
@@ -51,6 +53,119 @@ static long ldsqrt(long double value)
 #endif
 
 
+/*
+ * If the flag is set to say that a terminal resize signal was received,
+ * clear the flag and resize the display, and return true.
+ */
+static bool pv__resize_display_on_signal(pvstate_t state)
+{
+	unsigned int new_width, new_height;
+
+	if (0 == state->flags.terminal_resized)
+		return false;
+
+	state->flags.terminal_resized = 0;
+
+	new_width = (unsigned int) (state->control.width);
+	new_height = state->control.height;
+	pv_screensize(&new_width, &new_height);
+
+	if (new_width > PVDISPLAY_WIDTH_MAX)
+		new_width = PVDISPLAY_WIDTH_MAX;
+	if (!state->control.width_set_manually)
+		state->control.width = (pvdisplay_width_t) new_width;
+	if (!state->control.height_set_manually)
+		state->control.height = new_height;
+
+	return true;
+}
+
+
+/*
+ * Calculate and display the transfer statistics at the end of the transfer,
+ * if stats are enabled and any measurements were taken.
+ */
+static void pv__show_stats(pvstate_t state)
+{
+	if (!state->control.show_stats)
+		return;
+
+	if (state->calc.measurements_taken > 0) {
+		char stats_buf[256];	 /* flawfinder: ignore */
+		long double rate_mean, rate_variance, rate_deviation;
+		int stats_size;
+
+		/* flawfinder: made safe by use of pv_snprintf() */
+
+		rate_mean = state->calc.rate_sum / ((long double) (state->calc.measurements_taken));
+		rate_variance =
+		    (state->calc.ratesquared_sum / ((long double) (state->calc.measurements_taken))) -
+		    (rate_mean * rate_mean);
+#if HAVE_SQRTL
+		rate_deviation = sqrtl(rate_variance);
+#else
+		rate_deviation = ldsqrt(rate_variance);
+#endif
+
+		debug("%s: %ld", "measurements taken", state->calc.measurements_taken);
+		debug("%s: %.3Lf", "rate_sum", state->calc.rate_sum);
+		debug("%s: %.3Lf", "ratesquared_sum", state->calc.ratesquared_sum);
+		debug("%s: %.3Lf", "rate_mean", rate_mean);
+		debug("%s: %.3Lf", "rate_variance", rate_variance);
+		debug("%s: %.3Lf", "rate_deviation", rate_deviation);
+
+		memset(stats_buf, 0, sizeof(stats_buf));
+		stats_size =
+		    pv_snprintf(stats_buf, sizeof(stats_buf), "%s = %.3Lf/%.3Lf/%.3Lf/%.3Lf %s\n",
+				_("rate min/avg/max/mdev"), state->calc.rate_min, rate_mean, state->calc.rate_max,
+				rate_deviation, state->control.bits ? _("b/s") : _("B/s"));
+
+		if (stats_size > 0 && stats_size < (int) (sizeof(stats_buf)))
+			pv_tty_write(&(state->flags), stats_buf, (size_t) stats_size);
+	} else if (state->control.show_stats && state->calc.measurements_taken < 1) {
+		char msg_buf[256];	 /* flawfinder: ignore */
+		int msg_size;
+
+		/* flawfinder: made safe by use of pv_snprintf() */
+
+		memset(msg_buf, 0, sizeof(msg_buf));
+		msg_size = pv_snprintf(msg_buf, sizeof(msg_buf), "%s\n", _("rate not measured"));
+
+		if (msg_size > 0 && msg_size < (int) (sizeof(msg_buf)))
+			pv_tty_write(&(state->flags), msg_buf, (size_t) msg_size);
+	}
+}
+
+
+/*
+ * Return the elapsed transfer time, given the time the transfer loop
+ * started, the current time, and the total time spent stopped.
+ */
+static long double pv__elapsed_transfer_time(const struct timespec *loop_start_time,
+					     const struct timespec *current_time,
+					     const struct timespec *total_stoppage_time)
+{
+	struct timespec effective_start_time, transfer_elapsed;
+
+	memset(&effective_start_time, 0, sizeof(effective_start_time));
+	memset(&transfer_elapsed, 0, sizeof(transfer_elapsed));
+
+	/*
+	 * Calculate the effective start time: the time we actually started,
+	 * plus the total time we spent stopped.
+	 */
+	pv_elapsedtime_add(&effective_start_time, loop_start_time, total_stoppage_time);
+
+	/*
+	 * Now get the effective elapsed transfer time - current time minus
+	 * effective start time.
+	 */
+	pv_elapsedtime_subtract(&transfer_elapsed, current_time, &effective_start_time);
+
+	return pv_elapsedtime_seconds(&transfer_elapsed);
+}
+
+
 /*
  * Pipe data from a list of files to standard output, giving information
  * about the transfer on standard error according to the given options.
@@ -65,7 +180,7 @@ int pv_main_loop(pvstate_t state)
 	long double target;
 	bool eof_in, eof_out, final_update;
 	struct timespec start_time, next_update, next_ratecheck, cur_time;
-	struct timespec init_time, next_remotecheck, transfer_elapsed;
+	struct timespec next_remotecheck;
 	int input_fd, output_fd;
 	unsigned int file_idx;
 	bool output_is_pipe;
@@ -216,7 +331,7 @@ int pv_main_loop(pvstate_t state)
 		cansend = 0;
 
 		/*
-		 * Check for remote messages from -R every short while.
+		 * Check for remote messages from -R, -Q every short while.
 		 */
 		if (pv_elapsedtime_compare(&cur_time, &next_remotecheck) > 0) {
 			(void) pv_remote_check(state);
@@ -411,13 +526,6 @@ int pv_main_loop(pvstate_t state)
 			pv_nanosleep(50000000);
 		}
 
-		/*
-		 * Just go round the loop again if there's no display and
-		 * we're not reporting statistics.
-		 */
-		if (state->control.no_display && !state->control.show_stats)
-			continue;
-
 		/*
 		 * If -W was given, we don't output anything until we have
 		 * written a byte (or line, in line mode), at which point
@@ -434,7 +542,7 @@ int pv_main_loop(pvstate_t state)
 					continue;
 			}
 
-			state->control.wait = 0;
+			state->control.wait = false;
 
 			/*
 			 * Reset the timer offset counter now that data
@@ -448,7 +556,7 @@ int pv_main_loop(pvstate_t state)
 			 */
 			pv_sig_nopause();
 			pv_elapsedtime_read(&start_time);
-			pv_elapsedtime_zero(&(state->signal.toffset));
+			pv_elapsedtime_zero(&(state->signal.total_stoppage_time));
 			pv_sig_allowpause();
 
 			/*
@@ -459,6 +567,18 @@ int pv_main_loop(pvstate_t state)
 			pv_elapsedtime_add_nsec(&next_update, (long long) (1000000000.0 * state->control.interval));
 		}
 
+		/* Calculate the elapsed transfer time. */
+		state->transfer.elapsed_seconds =
+		    pv__elapsed_transfer_time(&start_time, &cur_time, &(state->signal.total_stoppage_time));
+
+		/*
+		 * Just go round the loop again if there's no display and
+		 * we're not reporting statistics.
+		 */
+		if (state->control.no_display && !state->control.show_stats) {
+			continue;
+		}
+
 		/* Restart the loop if it's not time to update the display. */
 		if (pv_elapsedtime_compare(&cur_time, &next_update) < 0) {
 			continue;
@@ -470,39 +590,8 @@ int pv_main_loop(pvstate_t state)
 		if (pv_elapsedtime_compare(&next_update, &cur_time) < 0)
 			pv_elapsedtime_copy(&next_update, &cur_time);
 
-		/*
-		 * Calculate the effective start time: the time we actually
-		 * started, plus the total time we spent stopped.
-		 */
-		memset(&init_time, 0, sizeof(init_time));
-		pv_elapsedtime_add(&init_time, &start_time, &(state->signal.toffset));
-
-		/*
-		 * Now get the effective elapsed transfer time - current
-		 * time minus effective start time.
-		 */
-		memset(&transfer_elapsed, 0, sizeof(transfer_elapsed));
-		pv_elapsedtime_subtract(&transfer_elapsed, &cur_time, &init_time);
-
-		state->transfer.elapsed_seconds = pv_elapsedtime_seconds(&transfer_elapsed);
-
 		/* Resize the display, if a resize signal was received. */
-		if (1 == state->flags.terminal_resized) {
-			unsigned int new_width, new_height;
-
-			state->flags.terminal_resized = 0;
-
-			new_width = (unsigned int) (state->control.width);
-			new_height = state->control.height;
-			pv_screensize(&new_width, &new_height);
-
-			if (new_width > PVDISPLAY_WIDTH_MAX)
-				new_width = PVDISPLAY_WIDTH_MAX;
-			if (!state->control.width_set_manually)
-				state->control.width = (pvdisplay_width_t) new_width;
-			if (!state->control.height_set_manually)
-				state->control.height = new_height;
-		}
+		(void) pv__resize_display_on_signal(state);
 
 		if (state->control.no_display) {
 			/* If there's no display, calculate rate for the statistics. */
@@ -534,50 +623,7 @@ int pv_main_loop(pvstate_t state)
 		(void) close(input_fd);
 
 	/* Calculate and display the transfer statistics. */
-	if (state->control.show_stats && state->calc.measurements_taken > 0) {
-		char stats_buf[256];	 /* flawfinder: ignore */
-		long double rate_mean, rate_variance, rate_deviation;
-		int stats_size;
-
-		/* flawfinder: made safe by use of pv_snprintf() */
-
-		rate_mean = state->calc.rate_sum / ((long double) (state->calc.measurements_taken));
-		rate_variance =
-		    (state->calc.ratesquared_sum / ((long double) (state->calc.measurements_taken))) -
-		    (rate_mean * rate_mean);
-#if HAVE_SQRTL
-		rate_deviation = sqrtl(rate_variance);
-#else
-		rate_deviation = ldsqrt(rate_variance);
-#endif
-
-		debug("%s: %ld", "measurements taken", state->calc.measurements_taken);
-		debug("%s: %.3Lf", "rate_sum", state->calc.rate_sum);
-		debug("%s: %.3Lf", "ratesquared_sum", state->calc.ratesquared_sum);
-		debug("%s: %.3Lf", "rate_mean", rate_mean);
-		debug("%s: %.3Lf", "rate_variance", rate_variance);
-		debug("%s: %.3Lf", "rate_deviation", rate_deviation);
-
-		memset(stats_buf, 0, sizeof(stats_buf));
-		stats_size =
-		    pv_snprintf(stats_buf, sizeof(stats_buf), "%s = %.3Lf/%.3Lf/%.3Lf/%.3Lf %s\n",
-				_("rate min/avg/max/mdev"), state->calc.rate_min, rate_mean, state->calc.rate_max,
-				rate_deviation, state->control.bits ? _("b/s") : _("B/s"));
-
-		if (stats_size > 0 && stats_size < (int) (sizeof(stats_buf)))
-			pv_tty_write(&(state->flags), stats_buf, (size_t) stats_size);
-	} else if (state->control.show_stats && state->calc.measurements_taken < 1) {
-		char msg_buf[256];	 /* flawfinder: ignore */
-		int msg_size;
-
-		/* flawfinder: made safe by use of pv_snprintf() */
-
-		memset(msg_buf, 0, sizeof(msg_buf));
-		msg_size = pv_snprintf(msg_buf, sizeof(msg_buf), "%s\n", _("rate not measured"));
-
-		if (msg_size > 0 && msg_size < (int) (sizeof(msg_buf)))
-			pv_tty_write(&(state->flags), msg_buf, (size_t) msg_size);
-	}
+	pv__show_stats(state);
 
 	return state->status.exit_status;
 }
@@ -648,9 +694,7 @@ static void pv_watchfd_update_format_string(pvstate_t state)
 	/* If there's nothing to watch, do nothing. */
 	if (state->watchfd.count < 1)
 		return;
-	if (NULL == state->watchfd.pid)
-		return;
-	if (NULL == state->watchfd.fd)
+	if (NULL == state->watchfd.watching)
 		return;
 
 	/*
@@ -666,7 +710,7 @@ static void pv_watchfd_update_format_string(pvstate_t state)
 
 	memset(new_format_string, 0, sizeof(new_format_string));
 
-	if (state->watchfd.count > 1 || -1 == state->watchfd.fd[0]) {
+	if (state->watchfd.count > 1 || -1 == state->watchfd.watching[0].fd) {
 		/* Watching more than one single FD; need %N. */
 		if (!format_contains_name(original_format_string)) {
 			(void) pv_snprintf(new_format_string, sizeof(new_format_string), "%%N %s",
@@ -707,27 +751,29 @@ static void pv_watchfd_update_format_string(pvstate_t state)
  */
 int pv_watchfd_loop(pvstate_t state)
 {
-	struct {			 /* details for each PID:FD specified by operator */
-		pid_t pid;		 /* watched PID */
-		int fd;			 /* watched fd, or -1 for all */
-		pvwatchfd_t info_array;	 /* watch information for each fd */
-		int array_length;	 /* length of watch info array */
-		/* TODO: "finished but not time to stop showing" flag for #81 */
-		bool finished;		 /* "PID:FD": fd closed; or PID gone */
-	} *watching;
+	struct pvwatcheditem_s *watching;
 	unsigned int watch_idx;
 	bool all_watching_finished;
 	struct timespec next_update, next_remotecheck, cur_time;
 	int prev_displayed_lines, blank_lines;
 
+	/*
+	 * In each watching[].info_array[] fd info item, once its "watch_fd"
+	 * is closed, its "closed" flag is set to true and its "end_time" to
+	 * now.  It isn't marked "unused" until its "end_time" is long
+	 * enough ago, so the information is held on-screen for a short
+	 * while after the fd closes or the PID exits (#81).
+	 */
+
 	/* If there's nothing to watch, do nothing at all. */
 	if (state->watchfd.count < 1)
 		return 0;
-	if (NULL == state->watchfd.pid)
-		return PV_ERROREXIT_MEMORY;
-	if (NULL == state->watchfd.fd)
+	if (NULL == state->watchfd.watching)
 		return PV_ERROREXIT_MEMORY;
 
+	/* Local alias for less cumbersome access. */
+	watching = state->watchfd.watching;
+
 	/*
 	 * Make sure there's no name set.
 	 */
@@ -739,16 +785,6 @@ int pv_watchfd_loop(pvstate_t state)
 	/* Adjust the format string so PID:FD or FD prefixes are shown. */
 	pv_watchfd_update_format_string(state);
 
-	/*
-	 * Allocate the watching array.
-	 */
-	watching = malloc(state->watchfd.count * sizeof(*watching));
-	if (NULL == watching) {
-		pv_error("%s: %s", _("buffer allocation failed"), strerror(errno));
-		return PV_ERROREXIT_MEMORY;
-	}
-	memset(watching, 0, state->watchfd.count * sizeof(*watching));
-
 	/*
 	 * Populate the watching array.  In the process of doing so, raise
 	 * errors if any of the initially specified PIDs or PID:FD pairs
@@ -757,8 +793,6 @@ int pv_watchfd_loop(pvstate_t state)
 	for (watch_idx = 0; watch_idx < state->watchfd.count; watch_idx++) {
 		int rc;
 
-		watching[watch_idx].pid = state->watchfd.pid[watch_idx];
-		watching[watch_idx].fd = state->watchfd.fd[watch_idx];
 		watching[watch_idx].info_array = NULL;
 		watching[watch_idx].array_length = 0;
 		watching[watch_idx].finished = false;
@@ -796,7 +830,7 @@ int pv_watchfd_loop(pvstate_t state)
 				/* Scan failed - mark as finished. */
 				state->status.exit_status |= PV_ERROREXIT_ACCESS;
 				watching[watch_idx].finished = true;
-			} else if (0 == watching[watch_idx].array_length) {
+			} else if ((0 == watching[watch_idx].array_length) || (NULL == watching[watch_idx].info_array)) {
 				/* FD not found - error, mark as finished. */
 				pv_error("%s %u: %s %d: %s",
 					 _("pid"), watching[watch_idx].pid, _("fd"), watching[watch_idx].fd,
@@ -850,7 +884,7 @@ int pv_watchfd_loop(pvstate_t state)
 		int displayed_lines;
 		bool terminal_resized;
 
-		/* Check for remote messages from -R every short while. */
+		/* Check for remote messages from -R, -Q every short while. */
 		if (pv_elapsedtime_compare(&cur_time, &next_remotecheck) > 0) {
 			if (pv_remote_check(state)) {
 				/* Message received - ensure format has %N. */
@@ -891,24 +925,7 @@ int pv_watchfd_loop(pvstate_t state)
 		 * to trigger a name reset and display reparse for every FD
 		 * output line, to inherit the size change.
 		 */
-		terminal_resized = false;
-		if (1 == state->flags.terminal_resized) {
-			unsigned int new_width, new_height;
-
-			state->flags.terminal_resized = 0;
-
-			new_width = (unsigned int) (state->control.width);
-			new_height = state->control.height;
-			pv_screensize(&new_width, &new_height);
-
-			if (new_width > PVDISPLAY_WIDTH_MAX)
-				new_width = PVDISPLAY_WIDTH_MAX;
-
-			state->control.width = (pvdisplay_width_t) new_width;
-			state->control.height = new_height;
-
-			terminal_resized = true;
-		}
+		terminal_resized = pv__resize_display_on_signal(state);
 
 		/*
 		 * Run through each watched item.
@@ -933,10 +950,9 @@ int pv_watchfd_loop(pvstate_t state)
 				if (rc != 0) {
 					/*
 					 * PID now inaccessible - mark it as
-					 * finished and skip over it.
+					 * finished.
 					 */
 					watching[watch_idx].finished = true;
-					continue;
 				}
 			} else {
 				/*
@@ -959,7 +975,6 @@ int pv_watchfd_loop(pvstate_t state)
 			     NULL != watching[watch_idx].info_array && info_idx < watching[watch_idx].array_length;
 			     info_idx++) {
 				off_t position_now;
-				struct timespec init_time, transfer_elapsed;
 				pvwatchfd_t info_item = &(watching[watch_idx].info_array[info_idx]);
 
 				/* Skip unused array entries. */
@@ -976,7 +991,8 @@ int pv_watchfd_loop(pvstate_t state)
 					 * changed.
 					 */
 					if (pv_watchfd_changed(info_item)) {
-						debug("%s %d: %s", "fd", info_item->watch_fd, "removing");
+						debug("%s %d: %s", "fd", info_item->watch_fd,
+						      "non-displayable, and has changed - removing");
 						info_item->unused = true;
 						info_item->displayable = false;
 						pv_freecontents_watchfd(info_item);
@@ -994,34 +1010,65 @@ int pv_watchfd_loop(pvstate_t state)
 				 * changed.
 				 */
 
-				position_now = pv_watchfd_position(info_item);
+				position_now = -1;
 
-				if (position_now < 0) {
-					debug("%s %d: %s", "fd", info_item->watch_fd, "removing");
-					info_item->unused = true;
-					info_item->displayable = false;
-					pv_freecontents_watchfd(info_item);
-					continue;
+				if (info_item->closed) {
+					/*
+					 * Closed fd - check how long since
+					 * it was closed.
+					 */
+					struct timespec time_since_closed;
+					long double seconds_since_closed;
+
+					memset(&time_since_closed, 0, sizeof(time_since_closed));
+					pv_elapsedtime_subtract(&time_since_closed, &cur_time, &(info_item->end_time));
+					seconds_since_closed = pv_elapsedtime_seconds(&time_since_closed);
+
+					/* Closed for long enough - remove. */
+					if (seconds_since_closed > state->control.interval) {
+						debug("%s %d: %s (%Lf s)", "fd", info_item->watch_fd,
+						      "closed for long enough - removing", seconds_since_closed);
+						info_item->unused = true;
+						info_item->displayable = false;
+						pv_freecontents_watchfd(info_item);
+						continue;
+					}
+
+				} else {
+
+					/*
+					 * Open fd - get its current
+					 * position.
+					 */
+
+					position_now = pv_watchfd_position(info_item);
+
+					if (position_now < 0) {
+						/*
+						 * The fd was closed - mark
+						 * as closed.
+						 */
+						debug("%s %d: %s", "fd", info_item->watch_fd, "marking as closed");
+						pv_elapsedtime_copy(&(info_item->end_time), &cur_time);
+						info_item->closed = true;
+					}
 				}
 
-				info_item->position = position_now;
-
-				memset(&init_time, 0, sizeof(init_time));
-				memset(&transfer_elapsed, 0, sizeof(transfer_elapsed));
+				if (position_now >= 0) {
+					/*
+					 * If the fd is still open and we
+					 * got its current position, update
+					 * its position and timers.
+					 */
+					info_item->position = position_now;
+					info_item->transfer.elapsed_seconds =
+					    pv__elapsed_transfer_time(&(info_item->start_time), &cur_time,
+								      &(info_item->total_stoppage_time));
+				}
 
 				/*
-				 * Calculate the effective start time: the time we actually
-				 * started, plus the total time we spent stopped.
+				 * Now display the information about the fd.
 				 */
-				pv_elapsedtime_add(&init_time, &(info_item->start_time), &(state->signal.toffset));
-
-				/*
-				 * Now get the effective elapsed transfer time - current
-				 * time minus effective start time.
-				 */
-				pv_elapsedtime_subtract(&transfer_elapsed, &cur_time, &init_time);
-
-				info_item->transfer.elapsed_seconds = pv_elapsedtime_seconds(&transfer_elapsed);
 
 				if (displayed_lines > 0) {
 					debug("%s", "adding newline");
@@ -1030,15 +1077,15 @@ int pv_watchfd_loop(pvstate_t state)
 
 				debug("%s %d, %s %d [%d/%d]: %Lf / %Ld", "pid", (int) (info_item->watch_pid), "fd",
 				      info_item->watch_fd, watch_idx, info_idx, info_item->transfer.elapsed_seconds,
-				      position_now);
+				      info_item->position);
 
 				if (terminal_resized) {
 					pv_watchpid_setname(state, info_item);
 					info_item->flags.reparse_display = 1;
 				}
 
-				info_item->transfer.transferred = position_now;
-				info_item->transfer.total_written = position_now;
+				info_item->transfer.transferred = info_item->position;
+				info_item->transfer.total_written = info_item->position;
 				state->control.name = info_item->display_name;
 				state->control.size = info_item->size;
 
@@ -1099,25 +1146,16 @@ int pv_watchfd_loop(pvstate_t state)
 		}
 	}
 
-	if (!state->control.numeric)
-		pv_tty_write(&(state->flags), "\n", 1);
-
-	/*
-	 * Clean up our displayed lines after the display loop.
-	 */
-	blank_lines = prev_displayed_lines;
-	while (blank_lines > 0) {
-		pvdisplay_width_t blank_count;
-		for (blank_count = 0; blank_count < state->control.width; blank_count++)
-			pv_tty_write(&(state->flags), " ", 1);
-		pv_tty_write(&(state->flags), "\r", 1);
-		blank_lines--;
-		if (blank_lines > 0)
+	if (!state->control.numeric) {
+		/*
+		 * Move the cursor past the displayed lines, so the last
+		 * output stays on the screen and isn't overwritten by the
+		 * command prompt (#81).
+		 */
+		while (prev_displayed_lines > 0) {
 			pv_tty_write(&(state->flags), "\n", 1);
-	}
-	while (prev_displayed_lines > 1) {
-		pv_tty_write(&(state->flags), "\033[A", 3);
-		prev_displayed_lines--;
+			prev_displayed_lines--;
+		}
 	}
 
 	/*
@@ -1128,27 +1166,144 @@ int pv_watchfd_loop(pvstate_t state)
 		state->status.exit_status |= PV_ERROREXIT_SIGNAL;
 
       end_pv_watchfd_loop:
-	/* Free all allocated memory. */
-	/*@-compdestroy@ */
-	for (watch_idx = 0; NULL != watching && watch_idx < state->watchfd.count; watch_idx++) {
-		int info_idx;
-		if (NULL == watching[watch_idx].info_array)
+	/* Free all allocated sub-structures. */
+	pv_freecontents_watchfd_items(watching, state->watchfd.count);
+
+	return state->status.exit_status;
+}
+
+
+/*
+ * Watch the progress of another pv process.
+ *
+ * Returns nonzero on error.
+ */
+int pv_query_loop(pvstate_t state, pid_t query)
+{
+	struct timespec cur_time, next_remotecheck, next_update;
+
+	pv_crs_init(&(state->cursor), &(state->control), &(state->flags));
+
+	/*
+	 * NB transfer.total_written has been initialised by main().
+	 */
+
+	state->display.initial_offset = 0;
+
+	memset(&cur_time, 0, sizeof(cur_time));
+	memset(&next_remotecheck, 0, sizeof(next_remotecheck));
+	memset(&next_update, 0, sizeof(next_update));
+
+	pv_elapsedtime_read(&cur_time);
+	pv_elapsedtime_copy(&next_remotecheck, &cur_time);
+	pv_elapsedtime_copy(&next_update, &cur_time);
+
+	if ((state->control.delay_start > 0)
+	    && (state->control.delay_start > state->control.interval)) {
+		pv_elapsedtime_add_nsec(&next_update, (long long) (1000000000.0 * state->control.delay_start));
+	} else {
+		pv_elapsedtime_add_nsec(&next_update, (long long) (1000000000.0 * state->control.interval));
+	}
+
+	/*
+	 * Repeat until the queried process exits.
+	 */
+
+	while (0 == kill(query, 0)) {
+
+		/*
+		 * Check for remote messages from -R, and run the query,
+		 * every short while.
+		 */
+		if (pv_elapsedtime_compare(&cur_time, &next_remotecheck) > 0) {
+			if (0 != pv_remote_transferstate_fetch(state, query, NULL, true))
+				break;
+			(void) pv_remote_check(state);
+			pv_elapsedtime_add_nsec(&next_remotecheck, REMOTE_INTERVAL);
+			/*
+			 * Set the next-remote-check time to now +
+			 * REMOTE_INTERVAL, if it's still in the past.
+			 */
+			if (pv_elapsedtime_compare(&next_update, &cur_time) < 0) {
+				pv_elapsedtime_copy(&next_update, &cur_time);
+				pv_elapsedtime_add_nsec(&next_remotecheck, REMOTE_INTERVAL);
+			}
+		}
+
+		if (1 == state->flags.trigger_exit)
+			break;
+
+		/* Now check the current time. */
+		pv_elapsedtime_read(&cur_time);
+
+		/*
+		 * Just go round the loop again if there's no display and
+		 * we're not reporting statistics.
+		 */
+		if (state->control.no_display && !state->control.show_stats) {
+			pv_nanosleep(50000000);
 			continue;
-		for (info_idx = 0; info_idx < watching[watch_idx].array_length; info_idx++) {
-			pv_freecontents_watchfd(&(watching[watch_idx].info_array[info_idx]));
 		}
-		free(watching[watch_idx].info_array);
-		watching[watch_idx].info_array = NULL;
-		watching[watch_idx].array_length = 0;
+
+		/*
+		 * If -W was given, we don't output anything until something
+		 * has been transferred.
+		 */
+		if (state->control.wait) {
+			/* Restart the loop if nothing written yet. */
+			if (state->transfer.transferred < 1) {
+				pv_nanosleep(50000000);
+				continue;
+			}
+
+			state->control.wait = false;
+
+			/*
+			 * Start the display at the next interval.
+			 */
+			pv_elapsedtime_copy(&next_update, &cur_time);
+			pv_elapsedtime_add_nsec(&next_update, (long long) (1000000000.0 * state->control.interval));
+		}
+
+		/* Restart the loop if it's not time to update the display. */
+		if (pv_elapsedtime_compare(&cur_time, &next_update) < 0) {
+			pv_nanosleep(50000000);
+			continue;
+		}
+
+		pv_elapsedtime_add_nsec(&next_update, (long long) (1000000000.0 * state->control.interval));
+
+		/* Set the "next update" time to now, if it's in the past. */
+		if (pv_elapsedtime_compare(&next_update, &cur_time) < 0)
+			pv_elapsedtime_copy(&next_update, &cur_time);
+
+		/* Resize the display, if a resize signal was received. */
+		(void) pv__resize_display_on_signal(state);
+
+		if (state->control.no_display) {
+			/* If there's no display, calculate rate for the statistics. */
+			pv_calculate_transfer_rate(&(state->calc), &(state->transfer), &(state->control),
+						   &(state->display), false);
+		} else {
+			/* Produce the display. */
+			pv_display(&(state->status), &(state->control), &(state->flags), &(state->transfer),
+				   &(state->calc), &(state->cursor), &(state->display), &(state->extra_display), false);
+		}
+	}
+
+	if (state->control.cursor) {
+		pv_crs_fini(&(state->cursor), &(state->control), &(state->flags));
+	} else {
+		if ((!state->control.numeric) && (!state->control.no_display)
+		    && (state->display.output_produced))
+			pv_tty_write(&(state->flags), "\n", 1);
 	}
-	free(watching);
-	watching = NULL;
+
+	if (1 == state->flags.trigger_exit)
+		state->status.exit_status |= PV_ERROREXIT_SIGNAL;
+
+	/* Calculate and display the transfer statistics. */
+	pv__show_stats(state);
 
 	return state->status.exit_status;
-	/*@+compdestroy @ */
-	/*
-	 * splint warns that watching[].info_array->transfer.transfer_buffer
-	 * and other deep structures may not be deallocated and so leak
-	 * memory, but that's what pv_freecontents_watchfd() takes care of.
-	 */
 }

src/pv/remote.c

@@ -0,0 +1,667 @@
+/*
+ * Remote-control and remote-query functions.
+ *
+ * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2025 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 <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 PV_REMOTE_CONTROL
+
+/* Structure for transferring settings with --remote. */
+struct remote_msg {
+	bool progress;			 /* progress bar flag */
+	bool timer;			 /* timer flag */
+	bool eta;			 /* ETA flag */
+	bool fineta;			 /* absolute ETA flag */
+	bool rate;			 /* rate counter flag */
+	bool average_rate;		 /* average rate counter flag */
+	bool bytes;			 /* bytes transferred flag */
+	bool bufpercent;		 /* transfer buffer percentage flag */
+	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 */
+	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 */
+	char extra_display[256];	 /* flawfinder: ignore */
+};
+
+/* Structure for transferring transfer state with --query. */
+struct query_msg {
+	long double elapsed_seconds;	 /* from state.transfer */
+	off_t transferred;		 /* from state.transfer */
+	off_t size;			 /* from state.control */
+	bool response;			 /* true if this is the response signal. */
+};
+
+/*
+ * flawfinder rationale: name, format, and extra_display are always
+ * explicitly zeroed and bounded to one less than their size so they are
+ * always \0 terminated.
+ */
+
+
+/*
+ * 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(pvstate_t state, pid_t remote)
+{
+	char control_filename[4096];	 /* flawfinder: ignore */
+	FILE *control_fptr;
+	struct remote_msg msgbuf;
+	pid_t signal_sender;
+	long timeout;
+	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) (remote), 0) != 0) {
+		pv_error("%u: %s", remote, strerror(errno));
+		return PV_ERROREXIT_REMOTE_OR_PID;
+	}
+
+	/*
+	 * Copy parameters into message buffer.
+	 */
+	memset(&msgbuf, 0, sizeof(msgbuf));
+	msgbuf.progress = state->control.format_option.progress;
+	msgbuf.timer = state->control.format_option.timer;
+	msgbuf.eta = state->control.format_option.eta;
+	msgbuf.fineta = state->control.format_option.fineta;
+	msgbuf.rate = state->control.format_option.rate;
+	msgbuf.average_rate = state->control.format_option.average_rate;
+	msgbuf.bytes = state->control.format_option.bytes;
+	msgbuf.bufpercent = state->control.format_option.bufpercent;
+	msgbuf.lastwritten = state->control.format_option.lastwritten;
+	msgbuf.rate_limit = state->control.rate_limit;
+	msgbuf.buffer_size = state->control.target_buffer_size;
+	msgbuf.size = state->control.size;
+	msgbuf.interval = state->control.interval;
+	msgbuf.width = (unsigned int) (state->control.width);
+	msgbuf.height = (unsigned int) (state->control.height);
+	msgbuf.width_set_manually = state->control.width_set_manually;
+	msgbuf.height_set_manually = state->control.height_set_manually;
+
+	if (state->control.name != NULL) {
+		strncpy(msgbuf.name, state->control.name, sizeof(msgbuf.name) - 1);	/* flawfinder: ignore */
+	}
+	if (state->control.format_string != NULL) {
+		strncpy(msgbuf.format, state->control.format_string, sizeof(msgbuf.format) - 1);	/* flawfinder: ignore */
+	}
+	if (state->control.extra_display_spec != NULL) {
+		strncpy(msgbuf.extra_display, state->control.extra_display_spec, sizeof(msgbuf.extra_display) - 1);	/* flawfinder: ignore */
+	}
+
+	/*
+	 * Make sure parameters are within sensible bounds.
+	 */
+	if (msgbuf.width < 1)
+		msgbuf.width = 80;
+	if (msgbuf.height < 1)
+		msgbuf.height = 25;
+	if (msgbuf.width > 999999)
+		msgbuf.width = 999999;
+	if (msgbuf.height > 999999)
+		msgbuf.height = 999999;
+	if ((msgbuf.interval > 0) && (msgbuf.interval < 0.1))
+		msgbuf.interval = 0.1;
+	if (msgbuf.interval > 600)
+		msgbuf.interval = 600;
+
+	/*
+	 * flawfinder rationale: name, format, and extra_display 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_open_controlfile(control_filename, sizeof(control_filename), (pid_t) getpid(), SIGUSR2, true);
+	if (NULL == control_fptr) {
+		pv_error("%s", strerror(errno));
+		return PV_ERROREXIT_REMOTE_OR_PID;
+	}
+
+	/*
+	 * Write the message buffer to the remote control file, and close
+	 * it.
+	 */
+	if (1 != fwrite(&msgbuf, sizeof(msgbuf), 1, control_fptr)) {
+		pv_error("%s", strerror(errno));
+		(void) fclose(control_fptr);
+		(void) remove(control_filename);
+		return PV_ERROREXIT_REMOTE_OR_PID;
+	}
+
+	if (0 != fclose(control_fptr)) {
+		pv_error("%s", strerror(errno));
+		(void) remove(control_filename);
+		return PV_ERROREXIT_REMOTE_OR_PID;
+	}
+
+	/*
+	 * 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) (remote), SIGUSR2) != 0) {
+		pv_error("%u: %s", remote, strerror(errno));
+		(void) remove(control_filename);
+		return PV_ERROREXIT_REMOTE_OR_PID;
+	}
+
+	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 && !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 (pv_sigusr2_received(state, &signal_sender)) {
+			if (signal_sender == remote) {
+				debug("%s", "message received");
+				received = true;
+			}
+		}
+	}
+
+	/*
+	 * Remove the remote control file.
+	 */
+	debug("%s: %s", "removing", control_filename);
+	if (0 != remove(control_filename)) {
+		pv_error("%s", strerror(errno));
+	}
+
+	/*
+	 * 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("%u: %s", remote, _("message not received"));
+	return PV_ERROREXIT_REMOTE_OR_PID;
+	/*@+mustfreefresh @ */
+}
+
+
+/*
+ * Check for a --remote message (SIGUSR2), returning false if none was
+ * found.
+ *
+ * If a message was received, update the current process's options with the
+ * ones in the message.
+ *
+ * Note that this relies on pv_state_set_format() causing the output format
+ * to be reparsed.
+ */
+static bool pv__rxsignal_usr2(pvstate_t state)
+{
+	pid_t signal_sender;
+	char control_filename[4096];	 /* flawfinder: ignore */
+	FILE *control_fptr;
+	struct remote_msg msgbuf;
+
+	/* 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 false;
+
+	memset(control_filename, 0, sizeof(control_filename));
+	control_fptr = pv_open_controlfile(control_filename, sizeof(control_filename), signal_sender, SIGUSR2, false);
+	if (NULL == control_fptr) {
+		pv_error("%s: %s", control_filename, strerror(errno));
+		return false;
+	}
+
+	/*
+	 * Read the message buffer from the remote control file, and close
+	 * it.
+	 */
+	if (1 != fread(&msgbuf, sizeof(msgbuf), 1, control_fptr)) {
+		pv_error("%s", strerror(errno));
+		(void) fclose(control_fptr);
+		return false;
+	}
+
+	if (0 != fclose(control_fptr)) {
+		pv_error("%s", strerror(errno));
+		return false;
+	}
+
+	/*
+	 * 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 control message");
+
+	pv_state_format_string_set(state, NULL);
+	pv_state_name_set(state, NULL);
+	pv_state_extra_display_set(state, NULL);
+
+	msgbuf.name[sizeof(msgbuf.name) - 1] = '\0';
+	msgbuf.format[sizeof(msgbuf.format) - 1] = '\0';
+	msgbuf.extra_display[sizeof(msgbuf.extra_display) - 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 : msgbuf.name);
+
+	if (msgbuf.rate_limit > 0)
+		pv_state_rate_limit_set(state, msgbuf.rate_limit);
+	if (msgbuf.buffer_size > 0) {
+		pv_state_target_buffer_size_set(state, msgbuf.buffer_size);
+	}
+	if (msgbuf.size > 0)
+		pv_state_size_set(state, msgbuf.size);
+	if (msgbuf.interval > 0)
+		pv_state_interval_set(state, msgbuf.interval);
+	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, msgbuf.format);
+	if (msgbuf.extra_display[0] != '\0')
+		pv_state_extra_display_set(state, msgbuf.extra_display);
+
+	return true;
+}
+
+
+/*
+ * Check for a --query message (SIGUSR1).
+ *
+ * If a type 0 message was received (query), then write a type 1 (response)
+ * message to the control file and send a SIGUSR1 to the sending process.
+ *
+ * If a type 1 message was received (response), update the state from the
+ * message in the control file.
+ *
+ * In both cases, the receiver of the message deletes its control file.
+ *
+ * The state transferred by message is transfer.elapsed_seconds,
+ * transfer.transferred, and control.size.
+ *
+ * Returns true if a signal was received and dealt with, false otherwise.
+ *
+ * If match_sender is not zero, then ignores the signal and returns false if
+ * the sending PID is not match_sender.
+ */
+static bool pv__rxsignal_usr1(pvstate_t state, pid_t match_sender)
+{
+	pid_t signal_sender;
+	char control_filename[4096];	 /* flawfinder: ignore */
+	FILE *control_fptr;
+	struct query_msg msgbuf;
+
+	/* flawfinder rationale: as above. */
+
+	/*
+	 * Return early if a SIGUSR1 signal has not been received.
+	 */
+	signal_sender = 0;
+	if (!pv_sigusr1_received(state, &signal_sender))
+		return false;
+
+	/*
+	 * If match_sender was specified, ignore the signal if the sender
+	 * doesn't match.
+	 */
+	if ((0 != match_sender) && (signal_sender != match_sender)) {
+		debug("%s=%d, %s=%d - %s", "match_sender", match_sender, "signal_sender", signal_sender,
+		      "ignoring USR1");
+		return false;
+	}
+
+	/*
+	 * Note that we use debug() rather than pv_error() here so that the
+	 * display of a running pv doesn't get interrupted by, for example,
+	 * a querying pv being terminated.
+	 */
+
+	memset(control_filename, 0, sizeof(control_filename));
+	control_fptr = pv_open_controlfile(control_filename, sizeof(control_filename), signal_sender, SIGUSR1, false);
+	if (NULL == control_fptr) {
+		debug("%s: %s", control_filename, strerror(errno));
+		return false;
+	}
+
+	/*
+	 * Read the message buffer from the remote control file, close it,
+	 * and delete it.
+	 */
+	if (1 != fread(&msgbuf, sizeof(msgbuf), 1, control_fptr)) {
+		debug("fread: %s", strerror(errno));
+		(void) fclose(control_fptr);
+		return false;
+	}
+
+	if (0 != fclose(control_fptr)) {
+		debug("fclose: %s", strerror(errno));
+		return false;
+	}
+
+	debug("%s: %s", "removing", control_filename);
+	if (0 != remove(control_filename)) {
+		debug("remove: %s", strerror(errno));
+		return false;
+	}
+
+	if (msgbuf.response) {
+		/* Response message - update local state. */
+		debug("%s: %d [%Lg, %ld, %ld]", "query response received", signal_sender, msgbuf.elapsed_seconds,
+		      msgbuf.transferred, msgbuf.size);
+		state->transfer.elapsed_seconds = msgbuf.elapsed_seconds;
+		state->transfer.transferred = msgbuf.transferred;
+		state->control.size = msgbuf.size;
+		return true;
+	}
+
+	/* Query message - transmit state to sender. */
+
+	debug("%s: %d", "query received", signal_sender);
+
+	msgbuf.elapsed_seconds = state->transfer.elapsed_seconds;
+	msgbuf.transferred = state->transfer.transferred;
+	msgbuf.size = state->control.size;
+	msgbuf.response = true;
+
+	memset(control_filename, 0, sizeof(control_filename));
+	control_fptr = pv_open_controlfile(control_filename, sizeof(control_filename), (pid_t) getpid(), SIGUSR1, true);
+	if (NULL == control_fptr) {
+		debug("%s", strerror(errno));
+		return true;		    /* true since the signal was received. */
+	}
+
+	if (1 != fwrite(&msgbuf, sizeof(msgbuf), 1, control_fptr)) {
+		debug("fwrite: %s", strerror(errno));
+		(void) fclose(control_fptr);
+		(void) remove(control_filename);
+		return true;		    /* as above. */
+	}
+
+	if (0 != fclose(control_fptr)) {
+		debug("fclose: %s", strerror(errno));
+		(void) remove(control_filename);
+		return true;
+	}
+
+	/*
+	 * Send a SIGUSR1 signal to the remote process, to tell it this
+	 * query response message is ready to read.
+	 */
+	if (kill((pid_t) (signal_sender), SIGUSR1) != 0) {
+		debug("%u: %s", signal_sender, strerror(errno));
+		(void) remove(control_filename);
+		return true;
+	}
+
+	debug("%s: %d", "query response sent", signal_sender);
+
+	return true;
+}
+
+
+/*
+ * Check for remote control messages.  For a SIGUSR2 (--remote), replace the
+ * current process's options with those being passed in.  For a SIGUSR1
+ * (--query), either receive transfer state from the sending process, or
+ * send our transfer state to the sending process, depending on the content
+ * of the message.
+ *
+ * NB --remote relies on pv_state_set_format() causing the output format to
+ * be reparsed.
+ *
+ * Returns true if a --remote message was received, false otherwise.
+ */
+bool pv_remote_check(pvstate_t state)
+{
+	bool received_remote;
+
+	received_remote = pv__rxsignal_usr2(state);
+	(void) pv__rxsignal_usr1(state, 0);
+
+	return received_remote;
+}
+
+
+/*
+ * Replace the transfer state with that of the given process, including the
+ * total transfer size.  If sizeptr is not NULL, the size is also copied to
+ * *sizeptr (this is so a caller can get the size without knowing the
+ * structure of pvstate_t).
+ *
+ * Returns nonzero on error.  If "silent" is false, reports the error.
+ */
+int pv_remote_transferstate_fetch(pvstate_t state, pid_t query, /*@null@ */ off_t * sizeptr, bool silent)
+{
+	char control_filename[4096];	 /* flawfinder: ignore */
+	FILE *control_fptr;
+	struct query_msg msgbuf;
+	pid_t signal_sender;
+	long timeout;
+	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) (query), 0) != 0) {
+		if (!silent)
+			pv_error("%u: %s", query, strerror(errno));
+		return PV_ERROREXIT_REMOTE_OR_PID;
+	}
+
+	/* Set up the query message. */
+	memset(&msgbuf, 0, sizeof(msgbuf));
+	msgbuf.response = false;
+
+	/*
+	 * Get the filename and file stream to use.
+	 */
+	memset(control_filename, 0, sizeof(control_filename));
+	control_fptr = pv_open_controlfile(control_filename, sizeof(control_filename), (pid_t) getpid(), SIGUSR1, true);
+	if (NULL == control_fptr) {
+		if (!silent)
+			pv_error("%s", strerror(errno));
+		return PV_ERROREXIT_REMOTE_OR_PID;
+	}
+
+	/*
+	 * Write the message to the control file, and close it.
+	 */
+	if (1 != fwrite(&msgbuf, sizeof(msgbuf), 1, control_fptr)) {
+		if (!silent)
+			pv_error("%s", strerror(errno));
+		(void) fclose(control_fptr);
+		(void) remove(control_filename);
+		return PV_ERROREXIT_REMOTE_OR_PID;
+	}
+
+	if (0 != fclose(control_fptr)) {
+		if (!silent)
+			pv_error("%s", strerror(errno));
+		(void) remove(control_filename);
+		return PV_ERROREXIT_REMOTE_OR_PID;
+	}
+
+	/*
+	 * Send a SIGUSR1 signal to the remote process, to tell it a query
+	 * message is ready, after first clearing our own SIGUSR1 received
+	 * flag.
+	 */
+	signal_sender = 0;
+	(void) pv_sigusr1_received(state, &signal_sender);
+	if (kill((pid_t) (query), SIGUSR1) != 0) {
+		if (!silent)
+			pv_error("%u: %s", query, strerror(errno));
+		(void) remove(control_filename);
+		return PV_ERROREXIT_REMOTE_OR_PID;
+	}
+
+	debug("%s: %d", "query sent", query);
+
+	/*
+	 * Wait for a SIGUSR1 signal to be sent back with a query response
+	 * message.
+	 */
+
+	timeout = 1100000;
+	received = false;
+
+	while (timeout > 10000 && !received && 0 == state->flags.trigger_exit) {
+		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 (pv__rxsignal_usr1(state, query)) {
+			debug("%s", "response received");
+			received = true;
+			if (NULL != sizeptr)
+				*sizeptr = state->control.size;
+		}
+	}
+
+	/*
+	 * Remove the control file in case it still exists - the other
+	 * process should have removed it.
+	 */
+	debug("%s: %s", "cleaning up", control_filename);
+	(void) remove(control_filename);
+
+	/*
+	 * 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.
+	 */
+	if (!silent)
+		pv_error("%u: %s", query, _("message not received"));
+	return PV_ERROREXIT_REMOTE_OR_PID;
+	/*@+mustfreefresh @ */
+
+}
+
+
+#else				/* !PV_REMOTE_CONTROL */
+
+/*
+ * Dummy stubs for remote control when we don't have PV_REMOTE_CONTROL.
+ */
+
+bool pv_remote_check( /*@unused@ */  __attribute__((unused)) pvstate_t state)
+{
+}
+
+
+int pv_remote_set(			 /*@unused@ */
+			 __attribute__((unused)) pvstate_t state, /*@unused@ */  __attribute__((unused)) pid_t remote)
+{
+	/*@-mustfreefresh@ *//* splint - see above */
+	pv_error("%s", _("SA_SIGINFO not supported on this system"));
+	/*@+mustfreefresh@ */
+	return PV_ERROREXIT_REMOTE_OR_PID;
+}
+
+
+int pv_remote_transferstate_fetch(	 /*@unused@ */
+					 __attribute__((unused)) pvstate_t state,
+					 /*@unused@ */
+					 __attribute__((unused)) pid_t query,
+					 /*@null@ */
+					 /*@unused@ */
+					 __attribute__((unused)) off_t * sizeptr,
+					 /*@unused@ */
+					 __attribute__((unused))
+					 bool silent)
+{
+	/*@-mustfreefresh@ *//* splint - see above */
+	fprintf(stderr, "%s\n", _("SA_SIGINFO not supported on this system"));
+	/*@+mustfreefresh@ */
+	return PV_ERROREXIT_REMOTE_OR_PID;
+}
+
+#endif				/* PV_REMOTE_CONTROL */

src/pv/signal.c

@@ -121,7 +121,7 @@ static void pv_sig_tstp( /*@unused@ */  __attribute__((unused))
 {
 	if (NULL == pv_sig_state)
 		return;
-	pv_elapsedtime_read(&(pv_sig_state->signal.tstp_time));
+	pv_elapsedtime_read(&(pv_sig_state->signal.when_tstp_arrived));
 	if (0 != raise(SIGSTOP)) {
 		debug("%s: %s", "raise", strerror(errno));
 	}
@@ -160,7 +160,7 @@ static void pv_sig_cont( /*@unused@ */  __attribute__((unused))
 	 * 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) {
+	if (0 != pv_sig_state->signal.when_tstp_arrived.tv_sec) {
 
 		memset(&current_time, 0, sizeof(current_time));
 		memset(&time_spent_stopped, 0, sizeof(time_spent_stopped));
@@ -168,14 +168,44 @@ static void pv_sig_cont( /*@unused@ */  __attribute__((unused))
 		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));
+		pv_elapsedtime_subtract(&time_spent_stopped, &current_time, &(pv_sig_state->signal.when_tstp_arrived));
 
 		/* 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);
+		pv_elapsedtime_add(&(pv_sig_state->signal.total_stoppage_time),
+				   &(pv_sig_state->signal.total_stoppage_time), &time_spent_stopped);
+
+		/* In watchfd mode, update the stoppage time of all watched fds. */
+		if (pv_sig_state->watchfd.count > 0 && NULL != pv_sig_state->watchfd.watching) {
+			unsigned int watch_idx;
+
+			for (watch_idx = 0; watch_idx < pv_sig_state->watchfd.count; watch_idx++) {
+				int info_idx;
+
+				if (pv_sig_state->watchfd.watching[watch_idx].finished)
+					continue;
+
+				if (NULL == pv_sig_state->watchfd.watching[watch_idx].info_array)
+					continue;
+
+				for (info_idx = 0; info_idx < pv_sig_state->watchfd.watching[watch_idx].array_length;
+				     info_idx++) {
+					pvwatchfd_t info_item =
+					    &(pv_sig_state->watchfd.watching[watch_idx].info_array[info_idx]);
+
+					if (info_item->unused)
+						continue;
+
+					if (!info_item->displayable)
+						continue;
+
+					pv_elapsedtime_add(&(info_item->total_stoppage_time),
+							   &(info_item->total_stoppage_time), &time_spent_stopped);
+				}
+			}
+		}
 
 		/* reset the SIGTSTP receipt time */
-		pv_elapsedtime_zero(&(pv_sig_state->signal.tstp_time));
+		pv_elapsedtime_zero(&(pv_sig_state->signal.when_tstp_arrived));
 	}
 
 	/*
@@ -239,7 +269,7 @@ static void pv_sig_usr2( /*@unused@ */  __attribute__((unused))
 		return;
 	if (NULL == info)
 		return;
-	pv_sig_state->signal.sender = info->si_pid;
+	pv_sig_state->signal.sender_usr2 = info->si_pid;
 	pv_sig_state->signal.rxusr2 = 1;
 }
 
@@ -255,12 +285,46 @@ bool pv_sigusr2_received(pvstate_t state, pid_t * pid)
 	if (0 == state->signal.rxusr2)
 		return false;
 	if (NULL != pid)
-		*pid = state->signal.sender;
+		*pid = state->signal.sender_usr2;
 	state->signal.rxusr2 = 0;
 	return true;
 }
 
-#endif
+
+/*
+ * Handle a SIGUSR1 by setting a flag to say we received it, after recording
+ * the sending PID.
+ */
+static void pv_sig_usr1( /*@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.sender_usr1 = info->si_pid;
+	pv_sig_state->signal.rxusr1 = 1;
+}
+
+
+/*
+ * Return true if a SIGUSR1 signal has been received since the last time
+ * this function was called, populating *pid with the sending PID if so.
+ */
+bool pv_sigusr1_received(pvstate_t state, pid_t * pid)
+{
+	if (NULL == state)
+		return false;
+	if (0 == state->signal.rxusr1)
+		return false;
+	if (NULL != pid)
+		*pid = state->signal.sender_usr1;
+	state->signal.rxusr1 = 0;
+	return true;
+}
+
+#endif				/* PV_REMOTE_CONTROL */
 
 
 /*
@@ -298,8 +362,8 @@ void pv_sig_init(pvstate_t state)
 	pv_sig_state = state;
 
 	pv_sig_state->flags.suspend_stderr = 0;
-	pv_elapsedtime_zero(&(pv_sig_state->signal.tstp_time));
-	pv_elapsedtime_zero(&(pv_sig_state->signal.toffset));
+	pv_elapsedtime_zero(&(pv_sig_state->signal.when_tstp_arrived));
+	pv_elapsedtime_zero(&(pv_sig_state->signal.total_stoppage_time));
 
 	/*
 	 * Note that we cast all sigemptyset() and sigaction() return values
@@ -388,7 +452,20 @@ void pv_sig_init(pvstate_t state)
 	/*@+unrecog@ */
 	(void) sigaction(SIGUSR2, &sa, &(pv_sig_state->signal.old_sigusr2));
 	memset(&sa, 0, sizeof(sa));
-#endif
+
+	/*
+	 * Handle SIGUSR1 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_usr1;
+	(void) sigemptyset(&(sa.sa_mask));
+	/*@-unrecog@ *//* splint doesn't know about SA_SIGINFO */
+	sa.sa_flags = SA_SIGINFO;
+	/*@+unrecog@ */
+	(void) sigaction(SIGUSR1, &sa, &(pv_sig_state->signal.old_sigusr1));
+	memset(&sa, 0, sizeof(sa));
+#endif				/* PV_REMOTE_CONTROL */
 
 	/*
 	 * Ensure that the TOSTOP terminal attribute is set, so that a
@@ -433,6 +510,7 @@ void pv_sig_fini( /*@unused@ */  __attribute__((unused)) pvstate_t state)
 	(void) sigaction(SIGTERM, &(pv_sig_state->signal.old_sigterm), NULL);
 #ifdef PV_REMOTE_CONTROL
 	(void) sigaction(SIGUSR2, &(pv_sig_state->signal.old_sigusr2), NULL);
+	(void) sigaction(SIGUSR1, &(pv_sig_state->signal.old_sigusr1), NULL);
 #endif
 	(void) sigaction(SIGALRM, &(pv_sig_state->signal.old_sigalrm), NULL);
 

src/pv/state.c

@@ -131,6 +131,7 @@ void pv_reset_transfer(pvtransferstate_t transfer)
 	transfer->line_positions_length = 0;
 	transfer->line_positions_head = 0;
 	transfer->last_output_position = 0;
+	transfer->output_not_seekable = false;
 }
 
 
@@ -256,6 +257,71 @@ void pv_freecontents_calc(pvtransfercalc_t calc)
 }
 
 
+/*
+ * Free the contents of a watchfd watched-items array.
+ */
+void pv_freecontents_watchfd_items(struct pvwatcheditem_s *watching, unsigned int count)
+{
+	unsigned int watch_idx;
+
+	if (NULL == watching)
+		return;
+
+	/*@-compdestroy@ */
+	for (watch_idx = 0; watch_idx < count; watch_idx++) {
+		int info_idx;
+		if (NULL == watching[watch_idx].info_array)
+			continue;
+		for (info_idx = 0; info_idx < watching[watch_idx].array_length; info_idx++) {
+			pv_freecontents_watchfd(&(watching[watch_idx].info_array[info_idx]));
+		}
+		free(watching[watch_idx].info_array);
+		watching[watch_idx].info_array = NULL;
+		watching[watch_idx].array_length = 0;
+	}
+
+	return;
+	/*@+compdestroy @ */
+	/*
+	 * splint warns that watching[].info_array->transfer.transfer_buffer
+	 * and other deep structures may not be deallocated and so leak
+	 * memory, but that's what pv_freecontents_watchfd() takes care of.
+	 */
+}
+
+
+/*
+ * Truncate the output file descriptor to its current position, if it's a
+ * valid fd, we're in sparse output mode, and no lseek() failed.
+ */
+static void pv_truncate_output(pvstate_t state)
+{
+	off_t current_offset;
+
+	if (!state->control.sparse_output)
+		return;
+	if (state->transfer.output_not_seekable)
+		return;
+	if (state->control.output_fd < 0)
+		return;
+
+	current_offset = (off_t) lseek(state->control.output_fd, (off_t) 0, SEEK_CUR);
+	if (current_offset == (off_t) - 1)
+		return;
+
+	debug("%s: %ld", "truncating to current offset", (long) current_offset);
+
+	/*@+longintegral@ */
+	/*
+	 * splint has trouble with off_t / __off_t.
+	 */
+	if (0 != ftruncate(state->control.output_fd, current_offset)) {
+		debug("%s: %s", "output ftruncate() failed", strerror(errno));
+	}
+	/*@-longintegral@ */
+}
+
+
 /*
  * Free a state structure, after which it can no longer be used.
  */
@@ -269,6 +335,7 @@ void pv_state_free(pvstate_t state)
 	 * still know the program name and output filename.
 	 */
 	if (state->control.output_fd >= 0) {
+		pv_truncate_output(state);
 		if (STDOUT_FILENO != state->control.output_fd) {
 			if (close(state->control.output_fd) < 0) {
 				pv_error("%s: %s",
@@ -302,6 +369,11 @@ void pv_state_free(pvstate_t state)
 		state->control.format_string = NULL;
 	}
 
+	if (NULL != state->control.extra_display_spec) {
+		free(state->control.extra_display_spec);
+		state->control.extra_display_spec = NULL;
+	}
+
 	if (NULL != state->control.extra_format_string) {
 		free(state->control.extra_format_string);
 		state->control.extra_format_string = NULL;
@@ -323,13 +395,10 @@ void pv_state_free(pvstate_t state)
 		state->files.filename = NULL;
 	}
 
-	if (NULL != state->watchfd.pid) {
-		free(state->watchfd.pid);
-		state->watchfd.pid = NULL;
-	}
-	if (NULL != state->watchfd.fd) {
-		free(state->watchfd.fd);
-		state->watchfd.fd = NULL;
+	if (NULL != state->watchfd.watching) {
+		pv_freecontents_watchfd_items(state->watchfd.watching, state->watchfd.count);
+		free(state->watchfd.watching);
+		state->watchfd.watching = NULL;
 	}
 
 	free(state);
@@ -350,6 +419,16 @@ void pv_state_set_format(pvstate_t state, bool progress, bool timer, bool eta, b
 		(void) pv_strlcat(state->control.default_format, y, sizeof(state->control.default_format)); \
 	}
 
+	state->control.format_option.progress = progress;
+	state->control.format_option.timer = timer;
+	state->control.format_option.eta = eta;
+	state->control.format_option.fineta = fineta;
+	state->control.format_option.rate = rate;
+	state->control.format_option.average_rate = average_rate;
+	state->control.format_option.bytes = bytes;
+	state->control.format_option.bufpercent = bufpercent;
+	state->control.format_option.lastwritten = lastwritten;
+
 	state->control.default_format[0] = '\0';
 
 	if (false == state->control.numeric) {
@@ -494,6 +573,11 @@ void pv_state_direct_io_set(pvstate_t state, bool val)
 	state->control.direct_io_changed = true;
 }
 
+void pv_state_sparse_output_set(pvstate_t state, bool val)
+{
+	state->control.sparse_output = val;
+}
+
 void pv_state_discard_input_set(pvstate_t state, bool val)
 {
 	state->control.discard_input = val;
@@ -573,6 +657,11 @@ void pv_state_extra_display_set(pvstate_t state, /*@null@ */ const char *val)
 	const char *word_start;
 	size_t offset;
 
+	if (NULL != state->control.extra_display_spec) {
+		free(state->control.extra_display_spec);
+		state->control.extra_display_spec = NULL;
+	}
+
 	if (NULL != state->control.extra_format_string) {
 		free(state->control.extra_format_string);
 		state->control.extra_format_string = NULL;
@@ -582,6 +671,9 @@ void pv_state_extra_display_set(pvstate_t state, /*@null@ */ const char *val)
 	if (NULL == val)
 		return;
 
+	if (NULL != val)
+		state->control.extra_display_spec = pv_strdup(val);
+
 	word_start = val;
 	while (NULL != word_start && '\0' != word_start[0]) {
 		offset = 0;
@@ -625,6 +717,7 @@ void pv_state_output_set(pvstate_t state, int fd, const char *name)
 	 * Close any previous output file first, so we can report any errors
 	 * before we store the new output filename.
 	 */
+	pv_truncate_output(state);
 	if (state->control.output_fd >= 0 && state->control.output_fd != STDOUT_FILENO) {
 		if (close(state->control.output_fd) < 0) {
 			pv_error("%s: %s",
@@ -645,6 +738,22 @@ void pv_state_output_set(pvstate_t state, int fd, const char *name)
 	 */
 	fcntl(state->control.output_fd, F_SETFL, O_NONBLOCK | fcntl(state->control.output_fd, F_GETFL));
 #endif				/* MAKE_OUTPUT_NONBLOCKING */
+
+	/*
+	 * In sparse output mode, if the output is in append mode (>>),
+	 * explicitly lseek() to the end of the file.  Otherwise, the file
+	 * offset is not set until the first write(), which means that if
+	 * the input starts with null bytes, when we lseek() past them
+	 * relative to the current position, the "current position" is 0
+	 * rather than the end of the file, and the file gets truncated on
+	 * exit to the wrong size.
+	 */
+	if (state->control.sparse_output && 0 != (fcntl(fd, F_GETFL) & O_APPEND)) {
+		debug("%s", "sparse output mode, and appending - seeking output to the end");
+		if ((off_t) lseek(fd, 0, SEEK_END) == (off_t) - 1) {
+			debug("%s: %s", "lseek failed", strerror(errno));
+		}
+	}
 }
 
 void pv_state_average_rate_window_set(pvstate_t state, unsigned int val)
@@ -709,43 +818,38 @@ void pv_state_inputfiles(pvstate_t state, unsigned int input_file_count, const c
 void pv_state_watchfds(pvstate_t state, unsigned int watchfd_count, const pid_t * pids, const int *fds)
 {
 	unsigned int item_idx;
-	/*@only@ */ pid_t *new_pid_array = NULL;
-	/*@only@ */ int *new_fd_array = NULL;
+	/*@only@ */ struct pvwatcheditem_s *new_array = NULL;
 
 	/* Free the old arrays, if there were any. */
-	if (NULL != state->watchfd.pid) {
-		free(state->watchfd.pid);
-		state->watchfd.pid = NULL;
-	}
-	if (NULL != state->watchfd.fd) {
-		free(state->watchfd.fd);
-		state->watchfd.fd = NULL;
+	if (NULL != state->watchfd.watching) {
+		/*@-compdestroy@ */
+		pv_freecontents_watchfd_items(state->watchfd.watching, state->watchfd.count);
+		free(state->watchfd.watching);
+		state->watchfd.watching = NULL;
+		/*@+compdestroy@ */
+		/*
+		 * splint warns about deep structures not being deallocated,
+		 * but that's what pv_freecontents_watchfd_items() does.
+		 */
 	}
 	state->watchfd.count = 0;
 	state->watchfd.multiple_pids = false;
 
-	/* Allocate empty new arrays of the right size. */
-	new_pid_array = calloc((size_t) (watchfd_count + 1), sizeof(pid_t));
-	if (NULL == new_pid_array) {
+	/* Allocate an empty new array of the right size. */
+	new_array = malloc((1 + watchfd_count) * sizeof(*new_array));
+	if (NULL == new_array) {
 		/*@-mustfreefresh@ *//* see similar _() issue above */
-		pv_error("%s: %s", _("process list allocation failed"), strerror(errno));
+		pv_error("%s: %s", _("buffer allocation failed"), strerror(errno));
 		/*@+mustfreefresh@ */
 		return;
 	}
-	state->watchfd.pid = new_pid_array;
-	new_fd_array = calloc((size_t) (watchfd_count + 1), sizeof(int));
-	if (NULL == new_fd_array) {
-		/*@-mustfreefresh@ *//* see similar _() issue above */
-		pv_error("%s: %s", _("file descriptor list allocation failed"), strerror(errno));
-		/*@+mustfreefresh@ */
-		return;
-	}
-	state->watchfd.fd = new_fd_array;
+	memset(new_array, 0, (1 + watchfd_count) * sizeof(*new_array));
+	state->watchfd.watching = new_array;
 
-	/* Populate the new arrays with the values supplied. */
+	/* Populate the new array with the values supplied. */
 	for (item_idx = 0; item_idx < watchfd_count; item_idx++) {
-		state->watchfd.pid[item_idx] = pids[item_idx];
-		state->watchfd.fd[item_idx] = fds[item_idx];
+		state->watchfd.watching[item_idx].pid = pids[item_idx];
+		state->watchfd.watching[item_idx].fd = fds[item_idx];
 		if ((item_idx > 0) && (pids[item_idx] != pids[item_idx - 1]))
 			state->watchfd.multiple_pids = true;
 	}

src/pv/transfer.c

@@ -655,6 +655,9 @@ static int pv__transfer_write(pvstate_t state, bool *eof_in, bool *eof_out, long
 {
 	ssize_t nwritten;
 	int write_errno;
+	bool all_nulls;
+	off_t output_offset;
+	size_t write_check_position, write_end_position;
 
 	if (NULL == state->transfer.transfer_buffer) {
 		pv_error("%s", _("no transfer buffer allocated"));
@@ -671,6 +674,52 @@ static int pv__transfer_write(pvstate_t state, bool *eof_in, bool *eof_out, long
 		nwritten = state->transfer.to_write;
 	} else if (state->transfer.to_write > 0) {
 
+		/*
+		 * In sparse output mode, check whether all of the bytes to
+		 * be written are null, and if so, try to seek the output
+		 * instead of writing the null bytes.
+		 */
+		if (state->control.sparse_output && !state->transfer.output_not_seekable) {
+			write_check_position = state->transfer.write_position;
+			write_end_position = write_check_position + (size_t) (state->transfer.to_write);
+			all_nulls = true;
+			while (all_nulls && write_check_position < write_end_position) {
+				if ('\0' == state->transfer.transfer_buffer[write_check_position]) {
+					write_check_position++;
+				} else {
+					all_nulls = false;
+				}
+			}
+			if (all_nulls) {
+
+				/*
+				 * Use lseek() to move forward in the file,
+				 * and then ftruncate() it to its new size.
+				 *
+				 * If any step fails, mark the output not
+				 * seekable so we stop trying.
+				 */
+
+				/*@+longintegral@ */
+				/*
+				 * splint has trouble with off_t / __off_t, in the lseek() call.
+				 */
+				output_offset =
+				    lseek(state->control.output_fd, (off_t) (state->transfer.to_write), SEEK_CUR);
+				if (output_offset == (off_t) - 1) {
+					debug("%s: %s", "output lseek() failed", strerror(errno));
+					state->transfer.output_not_seekable = true;
+				} else {
+					/* Seek successful - skip write. */
+					debug("%s (%ld) -> %s: %ld", "skipped null writes",
+					      (long) (state->transfer.to_write), "new position", (long) output_offset);
+					nwritten = state->transfer.to_write;
+					goto pv__transfer_write_completed;
+				}
+				/*@-longintegral@ */
+			}
+		}
+
 		/*
 		 * Set an interval timer or an alarm to interrupt the write
 		 * with a signal if the write takes too long, so we can
@@ -735,6 +784,9 @@ static int pv__transfer_write(pvstate_t state, bool *eof_in, bool *eof_out, long
 #endif				/* HAVE_SETITIMER */
 	}
 
+      pv__transfer_write_completed:
+	/* If lseek() worked for sparse output, it jumps down here. */
+
 	if (nwritten > 0) {
 		bool tracking_lines = false;
 

src/pv/watchpid.c

@@ -42,6 +42,8 @@
  */
 static bool filesize(pvwatchfd_t info)
 {
+	if (NULL == info)
+		return false;
 	if (S_ISBLK(info->sb_fd.st_mode)) {
 		int fd;
 
@@ -222,6 +224,9 @@ bool pv_watchfd_changed(pvwatchfd_t info)
 {
 	struct stat sb_fd, sb_fd_link;
 
+	if (NULL == info)
+		return false;
+
 	memset(&sb_fd, 0, sizeof(sb_fd));
 	memset(&sb_fd_link, 0, sizeof(sb_fd_link));
 
@@ -265,6 +270,9 @@ off_t pv_watchfd_position(pvwatchfd_t info)
 	long long pos_long;
 	FILE *fptr;
 
+	if (NULL == info)
+		return -1;
+
 	if (pv_watchfd_changed(info))
 		return -1;
 
@@ -418,7 +426,7 @@ static int pv_compare_watchfd(const void *a, const void *b)
 
 /*
  * Scan the given process and update the arrays with any new file
- * descriptors.  If "watch_fd" is not -1, then all other file descriptors
+ * descriptors.  If "watch_fd" is not -1, then all other file descriptor
  * numbers will be ignored,
  *
  * Returns 0 on success, 1 if the process no longer exists or could not be
@@ -489,11 +497,21 @@ int pv_watchpid_scanfds(pvstate_t state, pid_t watch_pid, int watch_fd, int *arr
 		 * Skip if this fd is already known to us.
 		 */
 		found_idx = -1;
-		for (check_idx = 0; check_idx < array_length; check_idx++) {
+		for (check_idx = 0; check_idx < array_length && NULL != info_array; check_idx++) {
 			if (info_array[check_idx].unused)
 				continue;
 			if (info_array[check_idx].watch_fd != fd)
 				continue;
+			if (info_array[check_idx].closed) {
+				/*
+				 * If the fd is known but closed,
+				 * immediately free it for re-use.
+				 */
+				info_array[check_idx].unused = true;
+				info_array[check_idx].displayable = false;
+				pv_freecontents_watchfd(&(info_array[check_idx]));
+				continue;
+			}
 			found_idx = check_idx;
 			break;
 		}
@@ -504,7 +522,7 @@ int pv_watchpid_scanfds(pvstate_t state, pid_t watch_pid, int watch_fd, int *arr
 		 * See if there's an empty slot we can re-use.
 		 */
 		use_idx = -1;
-		for (check_idx = 0; check_idx < array_length; check_idx++) {
+		for (check_idx = 0; check_idx < array_length && NULL != info_array; check_idx++) {
 			if (info_array[check_idx].unused) {
 				use_idx = check_idx;
 				break;
@@ -522,6 +540,10 @@ int pv_watchpid_scanfds(pvstate_t state, pid_t watch_pid, int watch_fd, int *arr
 			use_idx = array_length - 1;
 		}
 
+		/* At this point, the array should exist. */
+		if (NULL == info_array)
+			return 2;
+
 		debug("%s: %d => index %d", "found new fd", fd, use_idx);
 
 		changes_made = true;
@@ -534,6 +556,7 @@ int pv_watchpid_scanfds(pvstate_t state, pid_t watch_pid, int watch_fd, int *arr
 		pv_reset_watchfd(&(info_array[use_idx]));
 		info_array[use_idx].watch_pid = watch_pid;
 		info_array[use_idx].watch_fd = fd;
+		info_array[use_idx].closed = false;
 		info_array[use_idx].unused = false;
 		info_array[use_idx].displayable = true;
 
@@ -627,7 +650,12 @@ void pv_watchpid_setname(pvstate_t state, pvwatchfd_t info)
 {
 	size_t path_length, cwd_length;
 	int max_display_length;
-	char *file_fdpath = info->file_fdpath;
+	char *file_fdpath;
+
+	if (NULL == info)
+		return;
+
+	file_fdpath = info->file_fdpath;
 
 	memset(info->display_name, 0, PV_SIZEOF_DISPLAY_NAME);
 

tests/Memory_safety_-_Watchfd.test

@@ -65,4 +65,43 @@ pid=$!
 sleep 0.1
 { runWithValgrind -P "${workFile3}" -d "${pid}" -f -i 0.5 >/dev/null 2>&1; } 4>&1 || exit 1
 
+# Check "--watchfd PID1 PID2".
+seq 1 100 > "${workFile1}"
+seq 1 300 > "${workFile2}"
+true > "${workFile3}"
+# shellcheck disable=SC2030
+(
+while test -e "${workFile3}" && ! test -s "${workFile3}"; do sleep 0.1; done
+sleep 1
+read -r line
+exec 9<"${workFile2}"
+sleep 1
+exec 8<"${workFile1}"
+exec 7</dev/null
+sleep 1
+exec 9<&-
+# shellcheck disable=SC2034
+read -r line
+sleep 1
+) <"${workFile1}" &
+pid1=$!
+# shellcheck disable=SC2030
+(
+while test -e "${workFile3}" && ! test -s "${workFile3}"; do sleep 0.1; done
+sleep 1
+read -r line
+exec 9<"${workFile2}"
+sleep 1
+exec 8<"${workFile1}"
+exec 7</dev/null
+sleep 1
+exec 9<&-
+# shellcheck disable=SC2034
+read -r line
+sleep 1
+) <"${workFile1}" &
+pid2=$!
+sleep 0.1
+{ runWithValgrind -P "${workFile3}" -f -i 0.5 -d "${pid1}" "${pid2}" >/dev/null 2>&1; } 4>&1 || exit 1
+
 exit 0

tests/Sparse_-_Basic.test

@@ -0,0 +1,89 @@
+#!/bin/sh
+#
+# Transfer a large chunk of data through pv using pipes, sending it in a
+# bursty fashion, and make sure some of it consists of blocks of null bytes. 
+# Check data correctness afterwards, and if dd can produce a sparse file,
+# check that pv's output is also sparse.
+
+# Allow all tests to be skipped, e.g. during a release build
+test "${SKIP_ALL_TESTS}" = "1" && exit 77
+
+true "${testSubject:?not set - call this from 'make check'}"
+true "${workFile1:?not set - call this from 'make check'}"
+true "${workFile2:?not set - call this from 'make check'}"
+true "${workFile3:?not set - call this from 'make check'}"
+
+# generate some data, with a hole in the middle.
+dd if=/dev/urandom of="${workFile1}" bs=4096 count=640 2>/dev/null
+dd if=/dev/null of="${workFile1}" bs=4096 count=0 seek=1280 2>/dev/null
+dd if=/dev/urandom of="${workFile1}" bs=4096 count=1280 seek=1280 2>/dev/null
+
+# check that sparse files are supported.
+cat < "${workFile1}" > "${workFile3}"
+inputBlocks="$(ls -1s "${workFile1}" | awk '{print $1}')"
+nonSparseBlocks="$(ls -1s "${workFile3}" | awk '{print $1}')"
+if test "${inputBlocks}" -eq "${nonSparseBlocks}"; then
+	echo 'sparse files not supported'
+	exit 77
+fi
+
+inputChecksum=$(cksum "${workFile1}" | awk '{print $1}')
+
+# read through pv and test afterwards
+(
+dd if="${workFile1}" bs=1 count=9000
+sleep 1
+dd if="${workFile1}" bs=1 skip=9000 count=1240
+sleep 1
+dd if="${workFile1}" bs=1024 skip=10 count=1014
+sleep 1
+dd if="${workFile1}" bs=1024 skip=1024 count=1024
+sleep 1
+dd if="${workFile1}" bs=1024 skip=2048
+) 2>/dev/null | "${testSubject}" -q -O -L 2M | cat > "${workFile2}"
+
+outputChecksum=$(cksum "${workFile2}" | awk '{print $1}')
+
+if ! test "${inputChecksum}" = "${outputChecksum}"; then
+	echo "checksum mismatch with dd | pv | cat"
+	exit 1
+fi
+
+# same again but with one less pipe
+(
+dd if="${workFile1}" bs=1 count=9000
+sleep 1
+dd if="${workFile1}" bs=1 skip=9000 count=1240
+sleep 1
+dd if="${workFile1}" bs=1024 skip=10 count=1014
+sleep 1
+dd if="${workFile1}" bs=1024 skip=1024 count=1024
+sleep 1
+dd if="${workFile1}" bs=1024 skip=2048
+) 2>/dev/null | "${testSubject}" -q -O -L 2M > "${workFile2}"
+
+outputChecksum=$(cksum "${workFile2}" | awk '{print $1}')
+
+if ! test "${inputChecksum}" = "${outputChecksum}"; then
+	echo "checksum mismatch with dd | pv > file"
+	exit 1
+fi
+
+outputBlocks="$(ls -1s "${workFile2}" | awk '{print $1}')"
+
+# Note that we only check that the output has any holes at all (and that the
+# input had holes).  We don't compare pv's output with dd's output directly,
+# because the exact number of holes might differ intermittently.
+
+if test "${nonSparseBlocks}" -gt "${inputBlocks}" && ! test "${outputBlocks}" -lt "${nonSparseBlocks}"; then
+	echo "output is not sparse"
+	echo "input file:"
+	ls -ls "${workFile1}"
+	echo "output file:"
+	ls -ls "${workFile2}"
+	echo "input file without holes:"
+	ls -ls "${workFile3}"
+	exit 1
+fi
+
+exit 0

tests/Watchfd_-_Multiple_arguments.test

@@ -0,0 +1,101 @@
+#!/bin/sh
+#
+# Check that watching a process's file descriptors works as expected when
+# given multiple arguments.
+
+# Allow all tests to be skipped, e.g. during a release build
+test "${SKIP_ALL_TESTS}" = "1" && exit 77
+
+true "${testSubject:?not set - call this from 'make check'}"
+true "${workFile1:?not set - call this from 'make check'}"
+true "${workFile2:?not set - call this from 'make check'}"
+true "${workFile3:?not set - call this from 'make check'}"
+true "${workFile4:?not set - call this from 'make check'}"
+
+# Skip the test if "-d" is not available.
+if ! "${testSubject}" -h | grep -Fq ' -d'; then
+	echo "no \`--watchfd' / \`-d' option on this platform"
+	exit 77
+fi
+
+seq 1 100 > "${workFile1}"
+seq 1 300 > "${workFile2}"
+
+# Run two background processes to perform a few reads from a file.
+#
+# Each one only starts doing anything once the PV process below has started
+# (the workFile3 check).
+true > "${workFile3}"
+(
+while test -e "${workFile3}" && ! test -s "${workFile3}"; do sleep 0.1; done
+sleep 1
+# shellcheck disable=SC2034 # line is deliberately unused
+read -r line <&8
+sleep 1
+) <&- 8<"${workFile1}" &
+pid1=$!
+
+(
+while test -e "${workFile3}" && ! test -s "${workFile3}"; do sleep 0.1; done
+sleep 1
+# shellcheck disable=SC2034 # line is deliberately unused
+read -r line <&9
+sleep 1
+) <&- 9<"${workFile2}" &
+pid2=$!
+
+sleep 0.1
+"${testSubject}" -P "${workFile3}" -f -i 0.5 -d "${pid1}" "${pid2}" >/dev/null 2>"${workFile4}"
+
+# Skip the test if "-d" does not work.
+if grep -Fq ' -d: not available' "${workFile4}"; then
+	echo "no \`--watchfd' / \`-d' option on this platform"
+	exit 77
+fi
+
+# Process the output to make it easier to handle.
+# NB "ESC [ A" is "cursor up", we turn that into "-" and a newline.
+tr '\r' '\n' < "${workFile4}" | sed 's/.\[A/-!/g' | tr '!' '\n' > "${workFile1}"
+
+# We should see at least 2 file positions for fd 8.
+positionsReported="$(awk '/^[0-9 ]+: *8:/ {print $3}' < "${workFile1}" | sort -n | uniq)"
+differentNumbers="$(printf "%s\n" "${positionsReported}" | grep -Ec .)"
+if ! test "${differentNumbers}" -gt 1; then
+	printf "%s\n" "Expected at least 2 different numbers to be output for fd 8"
+	printf "%s:\n%s\n" "Positions reported" "${positionsReported}"
+	printf "%s: %s\n" "Number of different values seen" "${differentNumbers}"
+	printf "%s\n" "Raw output:"
+	cat "${workFile1}"
+	exit 1
+fi
+
+# We should see at least 2 file positions for fd 9.
+positionsReported="$(awk '/^[0-9 ]+: *9:/ {print $3}' < "${workFile1}" | sort -n | uniq)"
+differentNumbers="$(printf "%s\n" "${positionsReported}" | grep -Ec .)"
+if ! test "${differentNumbers}" -gt 1; then
+	printf "%s\n" "Expected at least 2 different numbers to be output for fd 9"
+	printf "%s:\n%s\n" "Positions reported" "${positionsReported}"
+	printf "%s: %s\n" "Number of different values seen" "${differentNumbers}"
+	printf "%s\n" "Raw output:"
+	cat "${workFile1}"
+	exit 1
+fi
+
+# We should see the last 6 characters of fd 8's filename appear.
+lastChars="$(printf "%s\n" "${workFile1}" | rev | cut -b1-6 | rev)"
+if ! grep -Fq "${lastChars}:" < "${workFile1}"; then
+	printf "%s\n" "Expected to see a filename for fd 8"
+	printf "%s\n" "Raw output:"
+	cat "${workFile1}"
+	exit 1
+fi
+# We should see the last 6 characters of fd 9's filename appear.
+lastChars="$(printf "%s\n" "${workFile2}" | rev | cut -b1-6 | rev)"
+if ! grep -Fq "${lastChars}:" < "${workFile1}"; then
+	printf "%s\n" "Expected to see a filename for fd 9"
+	printf "%s\n" "Raw output:"
+	cat "${workFile1}"
+	exit 1
+fi
+
+exit 0

tests/run-valgrind.sh

@@ -54,7 +54,7 @@ runWithValgrind () {
    ignore-initproctitle-leak
    Memcheck:Leak
    fun:malloc
-   fun:initproctitle
+   src:proctitle.c
    fun:main
 }
 EOF