Datestamp update.

Reviewed-on: https://codeberg.org/ivarch/pv/pulls/168

Makefile.am

@@ -95,10 +95,12 @@ 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_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], [1.9.34], [https://codeberg.org/ivarch/pv/issues], [pv], [https://ivarch.com/p/pv])
+AC_INIT([pv], [1.9.44], [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

@@ -108,6 +108,8 @@ 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/):
 
@@ -129,5 +131,6 @@ Translations provided through [Codeberg Weblate](https://translate.codeberg.org/
    * [0ko](https://translate.codeberg.org/user/0ko/) (157)
  * **Turkish**
    * [omerdduran](https://translate.codeberg.org/user/omerdduran/) (129)
+   * [Oğuz Ersen](https://codeberg.org/ersen) (8)
 
 ---

docs/NEWS.md

@@ -1,3 +1,19 @@
+### 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))
+ * *feature:* new "**=NAME**" syntax for **--watchfd** to watch processes by name using **pgrep**(1) ([#95](https://codeberg.org/ivarch/pv/issues/95))
+ * *feature:* new "**@LISTFILE**" syntax for **--watchfd** to watch processes listed in a file
+ * *fix:* improve support for changing the format of a **--watchfd** process with **--remote**
+ * *fix:* don't read more than **--size** bytes when using **--stop-at-size** ([#166](https://codeberg.org/ivarch/pv/issues/166))
+ * *fix:* transfer nothing if **--stop-at-size** is given a **--size** of 0 ([#166](https://codeberg.org/ivarch/pv/issues/166))
+ * *i18n:* Finnish translation stub added
+ * *i18n:* Turkish translations updated
+
 ### 1.9.34 - 26 July 2025
 
  * *fix:* prevent tight loop consuming CPU when waiting for a partially filled output pipe to be drained ([#164](https://codeberg.org/ivarch/pv/issues/164))

docs/pv.1

@@ -1,13 +1,14 @@
-.TH PV 1 2025-07-26 pv-1.9.34 "User Commands"
+.TH PV 1 2025-10-18 pv-1.9.44 "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
 [\fIOPTION\fR]... [\fIFILE\fR]...
 .PP
-\fBpv\fR \fB\-d\fR|\fB\-\-watchfd\fR \fIPID\fR[:\fIFD\fR] [\fIOPTION\fR]...
+\fBpv\fR [\fIOPTION\fR]... \fB\-d\fR|\fB\-\-watchfd\fR
+\fIPID\fR[:\fIFD\fR]|=\fINAME\fR|@\fILISTFILE\fR...
 .PP
 \fBpv\fR \fB\-R\fR|\fB\-\-remote\fR \fIPID\fR [\fIOPTION\fR]...
 .\"
@@ -15,11 +16,15 @@ pv \- monitor the progress of data through a pipe
 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
 .\"
@@ -272,9 +277,9 @@ 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
@@ -324,6 +329,13 @@ 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,
@@ -349,16 +361,28 @@ doesn't affect the progress display.
 .\"
 .SS "Alternative operating modes"
 .TP
-.BI \-d\  PID\fR[\fB:\fR\fIFD\fR],\  \fB\-\-watchfd\  PID\fR[\fB:\fR\fIFD\fR]
+\fB\-d\fR, \fB\-\-watchfd\fR \fIPID\fR[:\fIFD\fR]|=\fINAME\fR|@\fILISTFILE\fR...
 Instead of transferring data, watch file descriptor \fIFD\fR of process
 \fIPID\fR, and show its progress.
-The \fBpv\fR process will exit when \fIFD\fR either changes to a different
-file, changes read/write mode, or is closed; other data transfer modifiers -
-and remote control - may not be used with this option.
+Other data transfer modifiers - and remote control - may not be used with
+this option.
 .IP
-If only a \fIPID\fR is specified, then that process will be watched, and all
-regular files and block devices it opens will be shown with a progress bar.
-The \fBpv\fR process will exit when process \fIPID\fR exits.
+If a \fIPID\fR is specified without an \fIFD\fR, then that process will be
+watched, and all regular files and block devices it opens will be shown with
+a progress bar.
+.IP
+If a \fINAME\fR is specified, prefixed with "=", then processes with that
+name will be found with \fBpgrep\fR(1), and as watched described above.
+.IP
+If a \fILISTFILE\fR is specified, prefixed with "@", the lines in that file
+will be used as additional arguments.
+.IP
+All remaining non-option arguments will also be treated as additional
+arguments.
+.IP
+The \fBpv\fR process will exit when all \fIFD\fRs have either changed to a
+different file, changed read/write mode, or have closed, and all \fIPID\fRs
+(without a specific \fIFD\fR) have exited.
 .TP
 .BI \-R\  PID \fR,\ \fB\-\-remote\  PID
 Remotely control another instance of \fBpv\fR with process ID \fIPID\fR,
@@ -780,6 +804,13 @@ 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.
+.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

@@ -1,12 +1,13 @@
 # NAME
 
-pv - monitor the progress of data through a pipe
+pv - monitor and manage the progress of data through a pipe
 
 # SYNOPSIS
 
 **pv** \[*OPTION*\]\... \[*FILE*\]\...
 
-**pv** **-d**\|**\--watchfd** *PID*\[:*FD*\] \[*OPTION*\]\...
+**pv** \[*OPTION*\]\... **-d**\|**\--watchfd**
+*PID*\[:*FD*\]\|=*NAME*\|@*LISTFILE*\...
 
 **pv** **-R**\|**\--remote** *PID* \[*OPTION*\]\...
 
@@ -14,11 +15,15 @@ pv - monitor the progress of data through a pipe
 
 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
 
@@ -280,11 +285,11 @@ 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**
 
@@ -335,6 +340,13 @@ 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.
@@ -361,17 +373,29 @@ are explicitly switched on will be shown.
 
 ## Alternative operating modes
 
-**-d PID\[:FD\], \--watchfd PID\[:FD\]**
+**-d**, **\--watchfd** *PID*\[:*FD*\]\|=*NAME*\|@*LISTFILE*\...
 
 :   Instead of transferring data, watch file descriptor *FD* of process
-    *PID*, and show its progress. The **pv** process will exit when *FD*
-    either changes to a different file, changes read/write mode, or is
-    closed; other data transfer modifiers - and remote control - may not
-    be used with this option.
+    *PID*, and show its progress. Other data transfer modifiers - and
+    remote control - may not be used with this option.
 
-    If only a *PID* is specified, then that process will be watched, and
-    all regular files and block devices it opens will be shown with a
-    progress bar. The **pv** process will exit when process *PID* exits.
+    If a *PID* is specified without an *FD*, then that process will be
+    watched, and all regular files and block devices it opens will be
+    shown with a progress bar.
+
+    If a *NAME* is specified, prefixed with \"=\", then processes with
+    that name will be found with **pgrep**(1), and as watched described
+    above.
+
+    If a *LISTFILE* is specified, prefixed with \"@\", the lines in that
+    file will be used as additional arguments.
+
+    All remaining non-option arguments will also be treated as
+    additional arguments.
+
+    The **pv** process will exit when all *FD*s have either changed to a
+    different file, changed read/write mode, or have closed, and all
+    *PID*s (without a specific *FD*) have exited.
 
 **-R PID, \--remote PID**
 
@@ -740,6 +764,12 @@ Numbers passed to "**\--last-written**", "**\--width**",
 "**\--height**", "**\--average-rate-window**", and "**\--remote**" 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
 
 Please report bugs or feature requests via the issue tracker linked from

docs/release.sh

@@ -4,22 +4,19 @@
 # build directory, such as one in which "configure" has been run, i.e. 
 # there should be a Makefile present.
 #
-# If ~/.config/packaging-hosts exists, then build-package.sh is run on each
-# one and the resultant packages (RPMs, DEBs, etc) are copied back.
+# Requires "parmo" (https://ivarch.com/p/parmo); builds for all targets that
+# parmo supports.
 #
-# All of the release artefacts are placed in a "RELEASE-x" directory, where
-# "x" is the version.
+# 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'.
-#
-# Version: 0.0.2 / 16 Dec 2024
 
 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="${srcdir}/docs/test-on-vm-lab.sh"
-packageBuildScript="${srcdir}/docs/build-package.sh"
 
 status () {
 	test -n "$*" && printf "\n"
@@ -43,7 +40,6 @@ possiblyDie () {
 }
 
 test -e "${labTestScript}" || labTestScript=""
-test -e "${packageBuildScript}" || packageBuildScript=""
 
 # 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.
@@ -72,6 +68,7 @@ make analyse || possiblyDie "failed 'make analyse'"
 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"
 
@@ -158,44 +155,56 @@ fi
 #   * 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"
-rm -rf "RELEASE-${versionInNews}"
-mkdir "RELEASE-${versionInNews}"
-cp "${sourceArchive}" "${sourceArchive}.asc" "${sourceArchive}.txt" "RELEASE-${versionInNews}/" || possiblyDie "failed to copy release files"
+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/${manPage}.md" > "RELEASE-${versionInNews}/${manPage}.html"
+	pandoc --from markdown --to html --shift-heading-level-by=1 < "${srcdir}/docs/${manPage}.md" > "${releaseDir}/${manPage}.html"
 done
-pandoc --from markdown --to html < "${srcdir}/docs/NEWS.md" > "RELEASE-${versionInNews}/news.html"
+pandoc --from markdown --to html < "${srcdir}/docs/NEWS.md" > "${releaseDir}/news.html"
 
 # Build OS packages.
-packagingHosts="$(cat ~/.config/packaging-hosts 2>/dev/null)"
-test -n "${packageBuildScript}" || packagingHosts=""
-for buildHost in ${packagingHosts}; do
-	remoteWorkDir="$(ssh "${buildHost}" "mktemp -d")" || continue
-	test -n "${remoteWorkDir}" || continue
-	status "Package: ${buildHost}"
+buildTargets=$(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: ${buildTarget}"
 	buildOK=true
-	scp "${packageBuildScript}" "${buildHost}:${remoteWorkDir}/build-package.sh" || buildOK=false
-	${buildOK} && scp "${sourceArchive}" "${buildHost}:${remoteWorkDir}/" || buildOK=false
-	# shellcheck disable=SC2029
-	${buildOK} && ssh -t "${buildHost}" "cd \"${remoteWorkDir}\" && SKIP_VALGRIND_TESTS=\"${SKIP_VALGRIND_TESTS}\" MAINTAINER=\"${MAINTAINER}\" sh ./build-package.sh ./*gz" || buildOK=false
-	# shellcheck disable=SC2029
-	${buildOK} && ssh "${buildHost}" "rm \"${remoteWorkDir}\"/${sourceArchive##*/} \"${remoteWorkDir}/build-package.sh\""
-	${buildOK} && mkdir -p "RELEASE-${versionInNews}/${buildHost}"
-	${buildOK} && scp "${buildHost}:${remoteWorkDir}/*" "RELEASE-${versionInNews}/${buildHost}/"
-	# shellcheck disable=SC2029
-	ssh "${buildHost}" "rm -rf \"${remoteWorkDir}\""
+	rm -rf "${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 "RELEASE-${versionInNews}/" -type f -exec chmod 644 '{}' ';'
-find "RELEASE-${versionInNews}/" -type d -exec chmod 755 '{}' ';'
+find "${releaseDir}/" -type f -exec chmod 644 '{}' ';'
+find "${releaseDir}/" -type d -exec chmod 755 '{}' ';'
 
 status "Done"
 
 cat <<EOF
 
-Files are under: RELEASE-${versionInNews}/
+Files are under: ${releaseDir}/
 
 Still to do:
   * Update the news and manual on the web site

docs/test-on-vm-lab.sh

@@ -140,7 +140,7 @@ if test "$1" = "--testRunner"; then
 	exit 1
 fi
 
-labHosts="$(cat ~/.config/lab-hosts 2>/dev/null)"
+labHosts="$(grep -v '^#' ~/.config/lab-hosts 2>/dev/null)"
 
 workDir=$(mktemp -d) || exit 1
 trap 'rm -rf "${workDir}"' EXIT

po/LINGUAS

@@ -1,6 +1,7 @@
 cs
 de
 es
+fi
 fr
 pl
 pt

po/cs.po

@@ -1,7 +1,7 @@
 msgid ""
 msgstr ""
 "Report-Msgid-Bugs-To: https://codeberg.org/ivarch/pv/issues\n"
-"POT-Creation-Date: 2025-07-26 14:50+0100\n"
+"POT-Creation-Date: 2025-10-18 19:34+0100\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:372
+#: src/main/help.c:382
 msgid "FILE"
 msgstr "SOUBOR"
 
@@ -218,61 +218,65 @@ 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:363
+msgid "PID[:FD]|=NAME|@LISTFILE"
+msgstr ""
 
-#: src/main/help.c:361
+#: src/main/help.c:364
 msgid "watch file FD opened by process PID"
 msgstr "sleduj soubor DS otevřený procesem PID"
 
-#: src/main/help.c:364
+#: src/main/help.c:367
 msgid "PID"
 msgstr "PID"
 
-#: src/main/help.c:365
+#: src/main/help.c:368
 msgid "update settings of process PID"
 msgstr "aktualizuj nastavení procesu PID"
 
-#: src/main/help.c:370
+#: src/main/help.c:373
 msgid "save process ID in FILE"
 msgstr "ulož id procesu do SOUBORu"
 
-#: src/main/help.c:373
+#: src/main/help.c:376
 msgid "show this help and exit"
 msgstr "ukaž pomoc a skonči"
 
-#: src/main/help.c:376
+#: src/main/help.c:379
 msgid "show version information and exit"
 msgstr "ukaž informace o verzi a skonči"
 
-#: src/main/help.c:380
+#: src/main/help.c:383
 msgid "write debug logs to FILE"
 msgstr "zapiš ladící záznamy do SOUBORu"
 
-#: src/main/help.c:406
+#: src/main/help.c:409
 #, c-format
 msgid "Usage: %s [OPTION] [FILE]..."
 msgstr "Použití: %s [VOLBY] [SOUBOR]..."
 
-#: src/main/help.c:417
+#: src/main/help.c:420
 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:558
 msgid "Supported format sequences:"
 msgstr ""
 
-#: src/main/help.c:569
+#: src/main/help.c:572
 #, c-format
 msgid "Please report any bugs to: %s"
 msgstr "Prosím, hlašte veškeré chyby na: %s"
@@ -281,73 +285,85 @@ msgstr "Prosím, hlašte veškeré chyby na: %s"
 msgid "(input)"
 msgstr "(vstup)"
 
-#: src/main/main.c:328
+#: src/main/main.c:334
 msgid "state allocation failed"
 msgstr "selhala alokace stavu"
 
-#: src/main/options.c:146 src/pv/file.c:324
-msgid "failed to stat file"
-msgstr "nebylo možné zjistit informace o souboru"
-
-#: src/main/options.c:160
-msgid "is a directory"
-msgstr "je adresář"
-
-#: src/main/options.c:189
-msgid "failed to generate sysfs filename"
-msgstr "selhalo vytváření jména pro soubor v sysfs"
-
-#: src/main/options.c:211
-msgid "failed to read sysfs size file"
-msgstr "selhalo čtení velikosti souboru v sysfs"
-
-#: src/main/options.c:231
-msgid "failed to open block device"
-msgstr "selhalo otevření blokového zařízení"
-
-#: src/main/options.c:241
-msgid "failed to determine size of block device"
-msgstr "selhalo zjištění velikosti blokového zařízení"
-
-#: src/main/options.c:347
-msgid "option structure allocation failed"
-msgstr "selhala alokace struktury pro volby"
-
-#: src/main/options.c:366
-msgid "option structure argv allocation failed"
-msgstr "selhala alokace struktury pro argv"
-
-#: src/main/options.c:419
-msgid "numeric value not understood"
+#: src/main/options.c:370
+msgid "list files may not contain @ lines"
 msgstr ""
 
-#: src/main/options.c:437
-msgid "integer argument expected"
-msgstr "očekáván celočíselný argument"
-
-#: src/main/options.c:449
-msgid "numeric argument expected"
-msgstr "očekáván číselný argument"
-
-#: src/main/options.c:460
+#: src/main/options.c:391 src/main/options.c:393 src/main/options.c:804
 msgid "process ID or pid:fd pair expected"
 msgstr "očekáváno ID procesu nebo dvojice PID:DS"
 
-#: src/main/options.c:467
+#: src/main/options.c:403 src/main/options.c:405 src/main/options.c:811
 msgid "invalid process ID"
 msgstr "neplatné ID procesu"
 
-#: src/main/options.c:700
+#: src/main/options.c:448 src/pv/file.c:342
+msgid "failed to stat file"
+msgstr "nebylo možné zjistit informace o souboru"
+
+#: src/main/options.c:462
+msgid "is a directory"
+msgstr "je adresář"
+
+#: src/main/options.c:491
+msgid "failed to generate sysfs filename"
+msgstr "selhalo vytváření jména pro soubor v sysfs"
+
+#: src/main/options.c:513
+msgid "failed to read sysfs size file"
+msgstr "selhalo čtení velikosti souboru v sysfs"
+
+#: src/main/options.c:533
+msgid "failed to open block device"
+msgstr "selhalo otevření blokového zařízení"
+
+#: src/main/options.c:543
+msgid "failed to determine size of block device"
+msgstr "selhalo zjištění velikosti blokového zařízení"
+
+#: src/main/options.c:651
+msgid "option structure allocation failed"
+msgstr "selhala alokace struktury pro volby"
+
+#: src/main/options.c:670
+msgid "option structure argv allocation failed"
+msgstr "selhala alokace struktury pro argv"
+
+#: src/main/options.c:722
+msgid "numeric value not understood"
+msgstr ""
+
+#: src/main/options.c:740
+msgid "integer argument expected"
+msgstr "očekáván celočíselný argument"
+
+#: src/main/options.c:752
+msgid "numeric argument expected"
+msgstr "očekáván číselný argument"
+
+#: src/main/options.c:764
+msgid "missing filename"
+msgstr ""
+
+#: src/main/options.c:792
+msgid "missing process name"
+msgstr ""
+
+#: src/main/options.c:1048
 #, c-format
 msgid "Try `%s --help' for more information."
 msgstr "Zkuste `%s --help' pro více informací."
 
-#: src/main/options.c:702
+#: src/main/options.c:1050
 #, c-format
 msgid "Try `%s -h' for more information."
 msgstr "Zkuste `%s --h' pro více informací."
 
-#: src/main/options.c:733
+#: src/main/options.c:1081
 msgid ""
 "cannot use line mode or transfer modifier options when watching file "
 "descriptors"
@@ -355,19 +371,19 @@ msgstr ""
 "při sledování deskriptorů souborů nelze použít řádkový mód nebo volby pro "
 "modifikaci přenosu"
 
-#: src/main/options.c:742
+#: src/main/options.c:1090
 msgid "cannot use cursor positioning when watching file descriptors"
 msgstr "při sledování deskriptorů souborů nelze pozicování kurzoru použít"
 
-#: src/main/options.c:751
+#: src/main/options.c:1099
 msgid "cannot use remote control when watching file descriptors"
 msgstr "při sledování deskriptorů souborů nelze použít vzdálené ovládání"
 
-#: src/main/options.c:760
+#: src/main/options.c:1108
 msgid "cannot transfer files when watching file descriptors"
 msgstr "při sledování deskriptorů souborů nelze použít přenos souborů"
 
-#: src/main/options.c:775
+#: src/main/options.c:1133
 msgid "not available on systems without /proc/self/fdinfo"
 msgstr "není dostupné na systémech bez /proc/self/fdinfo"
 
@@ -375,7 +391,7 @@ msgstr "není dostupné na systémech bez /proc/self/fdinfo"
 msgid "message not received"
 msgstr "zpráva nepřijata"
 
-#: src/main/remote.c:440
+#: src/main/remote.c:444
 msgid "SA_SIGINFO not supported on this system"
 msgstr "SA_SIGINFO není na tomto systému podporováno"
 
@@ -411,150 +427,162 @@ msgstr "selhal pokus o uzamčení"
 msgid "failed to open terminal"
 msgstr "selhalo otevření terminálu"
 
-#: src/pv/display.c:249
+#: src/pv/display.c:285
 msgid "yzafpnum kMGTPEZY"
 msgstr "yzafpnum kMGTPEZY"
 
-#: src/pv/display.c:267
+#: src/pv/display.c:303
 msgid "yzafpnum KMGTPEZY"
 msgstr "yzafpnum KMGTPEZY"
 
-#: src/pv/display.c:989 src/pv/transfer.c:1057
+#: src/pv/display.c:1053 src/pv/loop.c:754 src/pv/transfer.c:1135
 msgid "buffer allocation failed"
 msgstr "selhala alokace vyrovnávací paměti"
 
-#: src/pv/file.c:149
+#: src/pv/file.c:153
 msgid "failed to seek to start of output"
 msgstr "selhalo posunutí za začátek výstupu"
 
-#: src/pv/file.c:294
+#: src/pv/file.c:303
 msgid "failed to close file"
 msgstr "selhalo zavření souboru"
 
-#: src/pv/file.c:317
+#: src/pv/file.c:335
 msgid "failed to read file"
 msgstr "selhalo čtení ze souboru"
 
-#: src/pv/file.c:332
+#: src/pv/file.c:350
 msgid "failed to stat output file"
 msgstr "selhalo zjištění informací o výstupním souboru"
 
-#: src/pv/file.c:354
+#: src/pv/file.c:372
 msgid "input file is output file"
 msgstr "vstupní soubor je výstupní soubor"
 
-#: src/pv/file.c:412
+#: src/pv/file.c:429
 msgid "(none)"
 msgstr "(žádný)"
 
-#: src/pv/file.c:414
+#: src/pv/file.c:431
 msgid "(stdin)"
 msgstr "(stdin)"
 
-#: src/pv/format/averagerate.c:34 src/pv/format/progressbar.c:93
-#: src/pv/format/rate.c:37 src/pv/loop.c:562
+#: src/pv/format/averagerate.c:34 src/pv/format/progressbar.c:92
+#: src/pv/format/rate.c:36 src/pv/loop.c:565
 msgid "b/s"
 msgstr "b/s"
 
-#: src/pv/format/averagerate.c:38 src/pv/format/progressbar.c:97
-#: src/pv/format/rate.c:41
+#: src/pv/format/averagerate.c:38 src/pv/format/progressbar.c:96
+#: src/pv/format/rate.c:40
 msgid "/s"
 msgstr "/s"
 
-#: src/pv/format/averagerate.c:38 src/pv/format/progressbar.c:97
-#: src/pv/format/rate.c:41 src/pv/loop.c:562
+#: src/pv/format/averagerate.c:38 src/pv/format/progressbar.c:96
+#: src/pv/format/rate.c:40 src/pv/loop.c:565
 msgid "B/s"
 msgstr "B/s"
 
-#: src/pv/format/bytes.c:37
+#: src/pv/format/bytes.c:35
 msgid "b"
 msgstr "b"
 
-#: src/pv/format/bytes.c:41 src/pv/transfer.c:594
+#: src/pv/format/bytes.c:39 src/pv/transfer.c:620
 msgid "B"
 msgstr "B"
 
-#: src/pv/format/eta.c:53 src/pv/format/eta.c:57
+#: src/pv/format/eta.c:52 src/pv/format/eta.c:56
 msgid "ETA"
 msgstr "ETA"
 
-#: src/pv/format/fineta.c:81
+#: src/pv/format/fineta.c:80
 msgid "FIN"
 msgstr "FIN"
 
-#: src/pv/loop.c:561
+#: src/pv/loop.c:564
 msgid "rate min/avg/max/mdev"
 msgstr "rychlost min/avg/max/std"
 
-#: src/pv/loop.c:573
+#: src/pv/loop.c:576
 msgid "rate not measured"
 msgstr "rychlost neměřena"
 
-#: src/pv/loop.c:783 src/pv/loop.c:834 src/pv/loop.c:887 src/pv/watchpid.c:99
-#: src/pv/watchpid.c:109 src/pv/watchpid.c:120 src/pv/watchpid.c:128
-#: src/pv/watchpid.c:165 src/pv/watchpid.c:184 src/pv/watchpid.c:192
-#: src/pv/watchpid.c:202 src/pv/watchpid.c:300 src/pv/watchpid.c:308
-#: src/pv/watchpid.c:385 src/pv/watchpid.c:406
+#: src/pv/loop.c:775 src/pv/loop.c:791 src/pv/loop.c:809 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
 msgid "pid"
 msgstr "pid"
 
-#: src/pv/state.c:40
-msgid "history structure allocation failed"
-msgstr "selhala alokace struktury historie"
-
-#: src/pv/state.c:617 src/pv/state.c:628
-msgid "file list allocation failed"
-msgstr "selhala alokace seznamu souborů"
-
-#: src/pv/transfer.c:463
-msgid "read failed"
-msgstr "čtení selhalo"
-
-#: src/pv/transfer.c:479
-msgid "warning: read errors detected"
-msgstr "varování: detekovány chyby při čtení"
-
-#: src/pv/transfer.c:495
-msgid "file is not seekable"
-msgstr "souborem nelze procházet"
-
-#: src/pv/transfer.c:573
-msgid "failed to seek past error"
-msgstr "selhal skok za chybu"
-
-#: src/pv/transfer.c:593
-msgid "skipped past read error"
-msgstr "chyba přeskočena"
-
-#: src/pv/transfer.c:634
-msgid "no transfer buffer allocated"
-msgstr "vyrovnávací paměť není alokována"
-
-#: src/pv/transfer.c:676
-msgid "failed to set interval timer"
-msgstr "selhalo nastavení intervalového časovače"
-
-#: src/pv/transfer.c:702
-msgid "failed to clear interval timer"
-msgstr "selhalo vynulování intervalového časovače"
-
-#: src/pv/transfer.c:744
-msgid "line position buffer allocation failed"
-msgstr "selhala alokace vyrovnávací paměti pro pozici v řádcích"
-
-#: src/pv/transfer.c:918
-msgid "write failed"
-msgstr "zápis selhal"
-
-#: src/pv/transfer.c:1159
-msgid "select call failed"
-msgstr "selhalo volání select"
-
-#: src/pv/watchpid.c:109 src/pv/watchpid.c:121 src/pv/watchpid.c:130
-#: src/pv/watchpid.c:184 src/pv/watchpid.c:193 src/pv/watchpid.c:204
+#: src/pv/loop.c:809 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
 msgid "fd"
 msgstr "ds"
 
-#: src/pv/watchpid.c:130 src/pv/watchpid.c:204
+#: src/pv/state.c:42
+msgid "history structure allocation failed"
+msgstr "selhala alokace struktury historie"
+
+#: src/pv/state.c:741 src/pv/state.c:753
+msgid "file list allocation failed"
+msgstr "selhala alokace seznamu souborů"
+
+#: src/pv/state.c:787
+msgid "process list allocation failed"
+msgstr ""
+
+#: src/pv/state.c:795
+msgid "file descriptor list allocation failed"
+msgstr ""
+
+#: src/pv/transfer.c:490
+msgid "read failed"
+msgstr "čtení selhalo"
+
+#: src/pv/transfer.c:506
+msgid "warning: read errors detected"
+msgstr "varování: detekovány chyby při čtení"
+
+#: src/pv/transfer.c:522
+msgid "file is not seekable"
+msgstr "souborem nelze procházet"
+
+#: src/pv/transfer.c:599
+msgid "failed to seek past error"
+msgstr "selhal skok za chybu"
+
+#: src/pv/transfer.c:619
+msgid "skipped past read error"
+msgstr "chyba přeskočena"
+
+#: src/pv/transfer.c:663
+msgid "no transfer buffer allocated"
+msgstr "vyrovnávací paměť není alokována"
+
+#: src/pv/transfer.c:751
+msgid "failed to set interval timer"
+msgstr "selhalo nastavení intervalového časovače"
+
+#: src/pv/transfer.c:777
+msgid "failed to clear interval timer"
+msgstr "selhalo vynulování intervalového časovače"
+
+#: src/pv/transfer.c:822
+msgid "line position buffer allocation failed"
+msgstr "selhala alokace vyrovnávací paměti pro pozici v řádcích"
+
+#: src/pv/transfer.c:996
+msgid "write failed"
+msgstr "zápis selhal"
+
+#: src/pv/transfer.c:1237
+msgid "select call failed"
+msgstr "selhalo volání select"
+
+#: src/pv/watchpid.c:129 src/pv/watchpid.c:203
 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: 2025-07-26 14:50+0100\n"
+"POT-Creation-Date: 2025-10-18 19:34+0100\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:372
+#: src/main/help.c:382
 msgid "FILE"
 msgstr "DATEI"
 
@@ -235,62 +235,66 @@ 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:363
+msgid "PID[:FD]|=NAME|@LISTFILE"
+msgstr ""
 
-#: src/main/help.c:361
+#: src/main/help.c:364
 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:367
 msgid "PID"
 msgstr "PID"
 
-#: src/main/help.c:365
+#: src/main/help.c:368
 msgid "update settings of process PID"
 msgstr "Einstellungen der Prozess-PID updaten"
 
-#: src/main/help.c:370
+#: src/main/help.c:373
 msgid "save process ID in FILE"
 msgstr "Prozess-ID in DATEI speichern"
 
-#: src/main/help.c:373
+#: src/main/help.c:376
 msgid "show this help and exit"
 msgstr "zeige diese Hilfe und beende"
 
-#: src/main/help.c:376
+#: src/main/help.c:379
 msgid "show version information and exit"
 msgstr "zeige Versionsinformationen und beende"
 
-#: src/main/help.c:380
+#: src/main/help.c:383
 msgid "write debug logs to FILE"
 msgstr "schreibe Debug-Protokolle in DATEI"
 
-#: src/main/help.c:406
+#: src/main/help.c:409
 #, c-format
 msgid "Usage: %s [OPTION] [FILE]..."
 msgstr "Aufruf: %s [OPTION] [DATEI]..."
 
-#: src/main/help.c:417
+#: src/main/help.c:420
 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:558
 msgid "Supported format sequences:"
 msgstr "unterstützte Formate:"
 
-#: src/main/help.c:569
+#: src/main/help.c:572
 #, c-format
 msgid "Please report any bugs to: %s"
 msgstr "Bitte senden Sie Fehlerberichte an %s"
@@ -299,73 +303,85 @@ msgstr "Bitte senden Sie Fehlerberichte an %s"
 msgid "(input)"
 msgstr "(eingabe)"
 
-#: src/main/main.c:328
+#: src/main/main.c:334
 msgid "state allocation failed"
 msgstr "Speicherzuweisung für `state' fehlgeschlagen"
 
-#: src/main/options.c:146 src/pv/file.c:324
-msgid "failed to stat file"
-msgstr "konnte Dateiinformationen nicht lesen"
+#: src/main/options.c:370
+msgid "list files may not contain @ lines"
+msgstr ""
 
-#: src/main/options.c:160
-msgid "is a directory"
-msgstr "ist ein Verzeichnis"
-
-#: src/main/options.c:189
-msgid "failed to generate sysfs filename"
-msgstr "konnte Sysfs-Dateinamen nicht erzeugen"
-
-#: src/main/options.c:211
-msgid "failed to read sysfs size file"
-msgstr "konnte Größe der Sysfs-Datei nicht lesen"
-
-#: src/main/options.c:231
-msgid "failed to open block device"
-msgstr "konnte Blockgerät nicht öffnen"
-
-#: src/main/options.c:241
-msgid "failed to determine size of block device"
-msgstr "konnte Größe des Blockgeräts nicht ermitteln"
-
-#: src/main/options.c:347
-msgid "option structure allocation failed"
-msgstr "Speicherzuweisung für `option' fehlgeschlagen"
-
-#: src/main/options.c:366
-msgid "option structure argv allocation failed"
-msgstr "Speicherzuweisung für `argv' der Option fehlgeschlagen"
-
-#: src/main/options.c:419
-msgid "numeric value not understood"
-msgstr "numerischen Wert nicht verstanden"
-
-#: src/main/options.c:437
-msgid "integer argument expected"
-msgstr "Ganzzahliges Argument erwartet"
-
-#: src/main/options.c:449
-msgid "numeric argument expected"
-msgstr "numerisches Argument erwartet"
-
-#: src/main/options.c:460
+#: src/main/options.c:391 src/main/options.c:393 src/main/options.c:804
 msgid "process ID or pid:fd pair expected"
 msgstr "Prozess-ID oder PID:FD-Paar erwartet"
 
-#: src/main/options.c:467
+#: src/main/options.c:403 src/main/options.c:405 src/main/options.c:811
 msgid "invalid process ID"
 msgstr "ungültige Prozess-ID"
 
-#: src/main/options.c:700
+#: src/main/options.c:448 src/pv/file.c:342
+msgid "failed to stat file"
+msgstr "konnte Dateiinformationen nicht lesen"
+
+#: src/main/options.c:462
+msgid "is a directory"
+msgstr "ist ein Verzeichnis"
+
+#: src/main/options.c:491
+msgid "failed to generate sysfs filename"
+msgstr "konnte Sysfs-Dateinamen nicht erzeugen"
+
+#: src/main/options.c:513
+msgid "failed to read sysfs size file"
+msgstr "konnte Größe der Sysfs-Datei nicht lesen"
+
+#: src/main/options.c:533
+msgid "failed to open block device"
+msgstr "konnte Blockgerät nicht öffnen"
+
+#: src/main/options.c:543
+msgid "failed to determine size of block device"
+msgstr "konnte Größe des Blockgeräts nicht ermitteln"
+
+#: src/main/options.c:651
+msgid "option structure allocation failed"
+msgstr "Speicherzuweisung für `option' fehlgeschlagen"
+
+#: src/main/options.c:670
+msgid "option structure argv allocation failed"
+msgstr "Speicherzuweisung für `argv' der Option fehlgeschlagen"
+
+#: src/main/options.c:722
+msgid "numeric value not understood"
+msgstr "numerischen Wert nicht verstanden"
+
+#: src/main/options.c:740
+msgid "integer argument expected"
+msgstr "Ganzzahliges Argument erwartet"
+
+#: src/main/options.c:752
+msgid "numeric argument expected"
+msgstr "numerisches Argument erwartet"
+
+#: src/main/options.c:764
+msgid "missing filename"
+msgstr ""
+
+#: src/main/options.c:792
+msgid "missing process name"
+msgstr ""
+
+#: src/main/options.c:1048
 #, c-format
 msgid "Try `%s --help' for more information."
 msgstr "`%s --help' zeigt weitere Informationen an."
 
-#: src/main/options.c:702
+#: src/main/options.c:1050
 #, c-format
 msgid "Try `%s -h' for more information."
 msgstr "`%s -h' zeigt weitere Informationen an."
 
-#: src/main/options.c:733
+#: src/main/options.c:1081
 msgid ""
 "cannot use line mode or transfer modifier options when watching file "
 "descriptors"
@@ -373,24 +389,24 @@ msgstr ""
 "Beim Beobachten von Dateideskriptoren können keine Optionen für den "
 "Zeilenmodus oder den Übertragungsmodifikator verwendet werden"
 
-#: src/main/options.c:742
+#: src/main/options.c:1090
 msgid "cannot use cursor positioning when watching file descriptors"
 msgstr ""
 "Beim Beobachten von Dateideskriptoren kann Cursor-Positionierung nicht "
 "verwendet werden"
 
-#: src/main/options.c:751
+#: src/main/options.c:1099
 msgid "cannot use remote control when watching file descriptors"
 msgstr ""
 "Beim Beobachten von Dateideskriptoren kann die Fernbedienung nicht verwenden "
 "werden"
 
-#: src/main/options.c:760
+#: src/main/options.c:1108
 msgid "cannot transfer files when watching file descriptors"
 msgstr ""
 "Beim Beobachten von Dateideskriptoren können Dateien nicht übertragen werden"
 
-#: src/main/options.c:775
+#: src/main/options.c:1133
 msgid "not available on systems without /proc/self/fdinfo"
 msgstr "Nicht verfügbar auf Systemen ohne /proc/self/fdinfo"
 
@@ -398,7 +414,7 @@ msgstr "Nicht verfügbar auf Systemen ohne /proc/self/fdinfo"
 msgid "message not received"
 msgstr "Nachricht nicht empfangen"
 
-#: src/main/remote.c:440
+#: src/main/remote.c:444
 msgid "SA_SIGINFO not supported on this system"
 msgstr "SA_SIGINFO wird auf diesem System nicht unterstützt"
 
@@ -434,150 +450,162 @@ msgstr "Sperrversuch fehlgeschlagen"
 msgid "failed to open terminal"
 msgstr "konnte Terminal nicht öffnen"
 
-#: src/pv/display.c:249
+#: src/pv/display.c:285
 msgid "yzafpnum kMGTPEZY"
 msgstr "yzafpnµm kMGTPEZY"
 
-#: src/pv/display.c:267
+#: src/pv/display.c:303
 msgid "yzafpnum KMGTPEZY"
 msgstr "yzafpnµm KMGTPEZY"
 
-#: src/pv/display.c:989 src/pv/transfer.c:1057
+#: src/pv/display.c:1053 src/pv/loop.c:754 src/pv/transfer.c:1135
 msgid "buffer allocation failed"
 msgstr "Speicherzuweisung für den Puffer fehlgeschlagen"
 
-#: src/pv/file.c:149
+#: src/pv/file.c:153
 msgid "failed to seek to start of output"
 msgstr "Konnte nicht zum Anfang der Ausgabe springen"
 
-#: src/pv/file.c:294
+#: src/pv/file.c:303
 msgid "failed to close file"
 msgstr "konnte Datei nicht schließen"
 
-#: src/pv/file.c:317
+#: src/pv/file.c:335
 msgid "failed to read file"
 msgstr "konnte Datei nicht lesen"
 
-#: src/pv/file.c:332
+#: src/pv/file.c:350
 msgid "failed to stat output file"
 msgstr "konnte Dateiinformationen für Ausgabe-Datei nicht lesen"
 
-#: src/pv/file.c:354
+#: src/pv/file.c:372
 msgid "input file is output file"
 msgstr "Eingabe-Datei ist Ausgabe-Datei"
 
-#: src/pv/file.c:412
+#: src/pv/file.c:429
 msgid "(none)"
 msgstr "(keine)"
 
-#: src/pv/file.c:414
+#: src/pv/file.c:431
 msgid "(stdin)"
 msgstr "(stdin)"
 
-#: src/pv/format/averagerate.c:34 src/pv/format/progressbar.c:93
-#: src/pv/format/rate.c:37 src/pv/loop.c:562
+#: src/pv/format/averagerate.c:34 src/pv/format/progressbar.c:92
+#: src/pv/format/rate.c:36 src/pv/loop.c:565
 msgid "b/s"
 msgstr "b/s"
 
-#: src/pv/format/averagerate.c:38 src/pv/format/progressbar.c:97
-#: src/pv/format/rate.c:41
+#: src/pv/format/averagerate.c:38 src/pv/format/progressbar.c:96
+#: src/pv/format/rate.c:40
 msgid "/s"
 msgstr "/s"
 
-#: src/pv/format/averagerate.c:38 src/pv/format/progressbar.c:97
-#: src/pv/format/rate.c:41 src/pv/loop.c:562
+#: src/pv/format/averagerate.c:38 src/pv/format/progressbar.c:96
+#: src/pv/format/rate.c:40 src/pv/loop.c:565
 msgid "B/s"
 msgstr "B/s"
 
-#: src/pv/format/bytes.c:37
+#: src/pv/format/bytes.c:35
 msgid "b"
 msgstr "b"
 
-#: src/pv/format/bytes.c:41 src/pv/transfer.c:594
+#: src/pv/format/bytes.c:39 src/pv/transfer.c:620
 msgid "B"
 msgstr "B"
 
-#: src/pv/format/eta.c:53 src/pv/format/eta.c:57
+#: src/pv/format/eta.c:52 src/pv/format/eta.c:56
 msgid "ETA"
 msgstr "ETA"
 
-#: src/pv/format/fineta.c:81
+#: src/pv/format/fineta.c:80
 msgid "FIN"
 msgstr "Endzeit"
 
-#: src/pv/loop.c:561
+#: src/pv/loop.c:564
 msgid "rate min/avg/max/mdev"
 msgstr "Rate min/mittel/max/abweichung"
 
-#: src/pv/loop.c:573
+#: src/pv/loop.c:576
 msgid "rate not measured"
 msgstr "Übertragungsrate nicht gemessen"
 
-#: src/pv/loop.c:783 src/pv/loop.c:834 src/pv/loop.c:887 src/pv/watchpid.c:99
-#: src/pv/watchpid.c:109 src/pv/watchpid.c:120 src/pv/watchpid.c:128
-#: src/pv/watchpid.c:165 src/pv/watchpid.c:184 src/pv/watchpid.c:192
-#: src/pv/watchpid.c:202 src/pv/watchpid.c:300 src/pv/watchpid.c:308
-#: src/pv/watchpid.c:385 src/pv/watchpid.c:406
+#: src/pv/loop.c:775 src/pv/loop.c:791 src/pv/loop.c:809 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
 msgid "pid"
 msgstr "pid"
 
-#: src/pv/state.c:40
-msgid "history structure allocation failed"
-msgstr "Speicherzuweisung für `history' fehlgeschlagen"
-
-#: src/pv/state.c:617 src/pv/state.c:628
-msgid "file list allocation failed"
-msgstr "Speicherzuweisung für die Dateiliste fehlgeschlagen"
-
-#: src/pv/transfer.c:463
-msgid "read failed"
-msgstr "read-Aufruf fehlgeschlagen"
-
-#: src/pv/transfer.c:479
-msgid "warning: read errors detected"
-msgstr "warnung: lesefehler erkannt"
-
-#: src/pv/transfer.c:495
-msgid "file is not seekable"
-msgstr "Datei ist nicht durchsuchbar"
-
-#: src/pv/transfer.c:573
-msgid "failed to seek past error"
-msgstr "konnte den Fehler nicht überwinden"
-
-#: src/pv/transfer.c:593
-msgid "skipped past read error"
-msgstr "über den Lesefehler hinaus verschoben"
-
-#: src/pv/transfer.c:634
-msgid "no transfer buffer allocated"
-msgstr "Speicherzuweisung für den Transferpuffer fehlgeschlagen"
-
-#: src/pv/transfer.c:676
-msgid "failed to set interval timer"
-msgstr "konnte Intervall-Timer nicht setzen"
-
-#: src/pv/transfer.c:702
-msgid "failed to clear interval timer"
-msgstr "konnte Intervall-Timer nicht löschen"
-
-#: src/pv/transfer.c:744
-msgid "line position buffer allocation failed"
-msgstr "Zuweisung des Zeilenpuffers fehlgeschlagen"
-
-#: src/pv/transfer.c:918
-msgid "write failed"
-msgstr "write-Aufruf fehlgeschlagen"
-
-#: src/pv/transfer.c:1159
-msgid "select call failed"
-msgstr "select-Aufruf fehlgeschlagen"
-
-#: src/pv/watchpid.c:109 src/pv/watchpid.c:121 src/pv/watchpid.c:130
-#: src/pv/watchpid.c:184 src/pv/watchpid.c:193 src/pv/watchpid.c:204
+#: src/pv/loop.c:809 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
 msgid "fd"
 msgstr "fd"
 
-#: src/pv/watchpid.c:130 src/pv/watchpid.c:204
+#: src/pv/state.c:42
+msgid "history structure allocation failed"
+msgstr "Speicherzuweisung für `history' fehlgeschlagen"
+
+#: src/pv/state.c:741 src/pv/state.c:753
+msgid "file list allocation failed"
+msgstr "Speicherzuweisung für die Dateiliste fehlgeschlagen"
+
+#: src/pv/state.c:787
+msgid "process list allocation failed"
+msgstr ""
+
+#: src/pv/state.c:795
+msgid "file descriptor list allocation failed"
+msgstr ""
+
+#: src/pv/transfer.c:490
+msgid "read failed"
+msgstr "read-Aufruf fehlgeschlagen"
+
+#: src/pv/transfer.c:506
+msgid "warning: read errors detected"
+msgstr "warnung: lesefehler erkannt"
+
+#: src/pv/transfer.c:522
+msgid "file is not seekable"
+msgstr "Datei ist nicht durchsuchbar"
+
+#: src/pv/transfer.c:599
+msgid "failed to seek past error"
+msgstr "konnte den Fehler nicht überwinden"
+
+#: src/pv/transfer.c:619
+msgid "skipped past read error"
+msgstr "über den Lesefehler hinaus verschoben"
+
+#: src/pv/transfer.c:663
+msgid "no transfer buffer allocated"
+msgstr "Speicherzuweisung für den Transferpuffer fehlgeschlagen"
+
+#: src/pv/transfer.c:751
+msgid "failed to set interval timer"
+msgstr "konnte Intervall-Timer nicht setzen"
+
+#: src/pv/transfer.c:777
+msgid "failed to clear interval timer"
+msgstr "konnte Intervall-Timer nicht löschen"
+
+#: src/pv/transfer.c:822
+msgid "line position buffer allocation failed"
+msgstr "Zuweisung des Zeilenpuffers fehlgeschlagen"
+
+#: src/pv/transfer.c:996
+msgid "write failed"
+msgstr "write-Aufruf fehlgeschlagen"
+
+#: src/pv/transfer.c:1237
+msgid "select call failed"
+msgstr "select-Aufruf fehlgeschlagen"
+
+#: src/pv/watchpid.c:129 src/pv/watchpid.c:203
 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: 2025-07-26 14:50+0100\n"
+"POT-Creation-Date: 2025-10-18 19:34+0100\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:372
+#: src/main/help.c:382
 msgid "FILE"
 msgstr ""
 
@@ -213,60 +213,64 @@ 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:363
+msgid "PID[:FD]|=NAME|@LISTFILE"
 msgstr ""
 
 #: src/main/help.c:364
+msgid "watch file FD opened by process PID"
+msgstr ""
+
+#: src/main/help.c:367
 msgid "PID"
 msgstr ""
 
-#: src/main/help.c:365
+#: src/main/help.c:368
 msgid "update settings of process PID"
 msgstr ""
 
-#: src/main/help.c:370
+#: src/main/help.c:373
 msgid "save process ID in FILE"
 msgstr ""
 
-#: src/main/help.c:373
+#: src/main/help.c:376
 msgid "show this help and exit"
 msgstr ""
 
-#: src/main/help.c:376
+#: src/main/help.c:379
 msgid "show version information and exit"
 msgstr ""
 
-#: src/main/help.c:380
+#: src/main/help.c:383
 msgid "write debug logs to FILE"
 msgstr ""
 
-#: src/main/help.c:406
+#: src/main/help.c:409
 #, c-format
 msgid "Usage: %s [OPTION] [FILE]..."
 msgstr ""
 
-#: src/main/help.c:417
+#: src/main/help.c:420
 msgid ""
 "Concatenate FILE(s), or standard input, to standard output, with monitoring."
 msgstr ""
 
-#: src/main/help.c:555
+#: src/main/help.c:558
 msgid "Supported format sequences:"
 msgstr ""
 
-#: src/main/help.c:569
+#: src/main/help.c:572
 #, c-format
 msgid "Please report any bugs to: %s"
 msgstr ""
@@ -275,91 +279,103 @@ msgstr ""
 msgid "(input)"
 msgstr ""
 
-#: src/main/main.c:328
+#: src/main/main.c:334
 msgid "state allocation failed"
 msgstr ""
 
-#: src/main/options.c:146 src/pv/file.c:324
-msgid "failed to stat file"
+#: src/main/options.c:370
+msgid "list files may not contain @ lines"
 msgstr ""
 
-#: src/main/options.c:160
-msgid "is a directory"
-msgstr ""
-
-#: src/main/options.c:189
-msgid "failed to generate sysfs filename"
-msgstr ""
-
-#: src/main/options.c:211
-msgid "failed to read sysfs size file"
-msgstr ""
-
-#: src/main/options.c:231
-msgid "failed to open block device"
-msgstr ""
-
-#: src/main/options.c:241
-msgid "failed to determine size of block device"
-msgstr ""
-
-#: src/main/options.c:347
-msgid "option structure allocation failed"
-msgstr ""
-
-#: src/main/options.c:366
-msgid "option structure argv allocation failed"
-msgstr ""
-
-#: src/main/options.c:419
-msgid "numeric value not understood"
-msgstr ""
-
-#: src/main/options.c:437
-msgid "integer argument expected"
-msgstr ""
-
-#: src/main/options.c:449
-msgid "numeric argument expected"
-msgstr ""
-
-#: src/main/options.c:460
+#: src/main/options.c:391 src/main/options.c:393 src/main/options.c:804
 msgid "process ID or pid:fd pair expected"
 msgstr ""
 
-#: src/main/options.c:467
+#: src/main/options.c:403 src/main/options.c:405 src/main/options.c:811
 msgid "invalid process ID"
 msgstr ""
 
-#: src/main/options.c:700
+#: 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:651
+msgid "option structure allocation failed"
+msgstr ""
+
+#: src/main/options.c:670
+msgid "option structure argv allocation failed"
+msgstr ""
+
+#: src/main/options.c:722
+msgid "numeric value not understood"
+msgstr ""
+
+#: src/main/options.c:740
+msgid "integer argument expected"
+msgstr ""
+
+#: src/main/options.c:752
+msgid "numeric argument expected"
+msgstr ""
+
+#: src/main/options.c:764
+msgid "missing filename"
+msgstr ""
+
+#: src/main/options.c:792
+msgid "missing process name"
+msgstr ""
+
+#: src/main/options.c:1048
 #, c-format
 msgid "Try `%s --help' for more information."
 msgstr ""
 
-#: src/main/options.c:702
+#: src/main/options.c:1050
 #, c-format
 msgid "Try `%s -h' for more information."
 msgstr ""
 
-#: src/main/options.c:733
+#: src/main/options.c:1081
 msgid ""
 "cannot use line mode or transfer modifier options when watching file "
 "descriptors"
 msgstr ""
 
-#: src/main/options.c:742
+#: src/main/options.c:1090
 msgid "cannot use cursor positioning when watching file descriptors"
 msgstr ""
 
-#: src/main/options.c:751
+#: src/main/options.c:1099
 msgid "cannot use remote control when watching file descriptors"
 msgstr ""
 
-#: src/main/options.c:760
+#: src/main/options.c:1108
 msgid "cannot transfer files when watching file descriptors"
 msgstr ""
 
-#: src/main/options.c:775
+#: src/main/options.c:1133
 msgid "not available on systems without /proc/self/fdinfo"
 msgstr ""
 
@@ -367,7 +383,7 @@ msgstr ""
 msgid "message not received"
 msgstr ""
 
-#: src/main/remote.c:440
+#: src/main/remote.c:444
 msgid "SA_SIGINFO not supported on this system"
 msgstr ""
 
@@ -403,150 +419,159 @@ msgstr ""
 msgid "failed to open terminal"
 msgstr ""
 
-#: src/pv/display.c:249
+#: src/pv/display.c:285
 msgid "yzafpnum kMGTPEZY"
 msgstr ""
 
-#: src/pv/display.c:267
+#: src/pv/display.c:303
 msgid "yzafpnum KMGTPEZY"
 msgstr ""
 
-#: src/pv/display.c:989 src/pv/transfer.c:1057
+#: src/pv/display.c:1053 src/pv/loop.c:754 src/pv/transfer.c:1135
 msgid "buffer allocation failed"
 msgstr ""
 
-#: src/pv/file.c:149
+#: src/pv/file.c:153
 msgid "failed to seek to start of output"
 msgstr ""
 
-#: src/pv/file.c:294
+#: src/pv/file.c:303
 msgid "failed to close file"
 msgstr ""
 
-#: src/pv/file.c:317
+#: src/pv/file.c:335
 msgid "failed to read file"
 msgstr ""
 
-#: src/pv/file.c:332
+#: src/pv/file.c:350
 msgid "failed to stat output file"
 msgstr ""
 
-#: src/pv/file.c:354
+#: src/pv/file.c:372
 msgid "input file is output file"
 msgstr ""
 
-#: src/pv/file.c:412
+#: src/pv/file.c:429
 msgid "(none)"
 msgstr ""
 
-#: src/pv/file.c:414
+#: src/pv/file.c:431
 msgid "(stdin)"
 msgstr ""
 
-#: src/pv/format/averagerate.c:34 src/pv/format/progressbar.c:93
-#: src/pv/format/rate.c:37 src/pv/loop.c:562
+#: src/pv/format/averagerate.c:34 src/pv/format/progressbar.c:92
+#: src/pv/format/rate.c:36 src/pv/loop.c:565
 msgid "b/s"
 msgstr ""
 
-#: src/pv/format/averagerate.c:38 src/pv/format/progressbar.c:97
-#: src/pv/format/rate.c:41
+#: 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:97
-#: src/pv/format/rate.c:41 src/pv/loop.c:562
+#: src/pv/format/averagerate.c:38 src/pv/format/progressbar.c:96
+#: src/pv/format/rate.c:40 src/pv/loop.c:565
 msgid "B/s"
 msgstr ""
 
-#: src/pv/format/bytes.c:37
+#: src/pv/format/bytes.c:35
 msgid "b"
 msgstr ""
 
-#: src/pv/format/bytes.c:41 src/pv/transfer.c:594
+#: src/pv/format/bytes.c:39 src/pv/transfer.c:620
 msgid "B"
 msgstr ""
 
-#: src/pv/format/eta.c:53 src/pv/format/eta.c:57
+#: src/pv/format/eta.c:52 src/pv/format/eta.c:56
 msgid "ETA"
 msgstr ""
 
-#: src/pv/format/fineta.c:81
+#: src/pv/format/fineta.c:80
 msgid "FIN"
 msgstr ""
 
-#: src/pv/loop.c:561
+#: src/pv/loop.c:564
 msgid "rate min/avg/max/mdev"
 msgstr ""
 
-#: src/pv/loop.c:573
+#: src/pv/loop.c:576
 msgid "rate not measured"
 msgstr ""
 
-#: src/pv/loop.c:783 src/pv/loop.c:834 src/pv/loop.c:887 src/pv/watchpid.c:99
-#: src/pv/watchpid.c:109 src/pv/watchpid.c:120 src/pv/watchpid.c:128
-#: src/pv/watchpid.c:165 src/pv/watchpid.c:184 src/pv/watchpid.c:192
-#: src/pv/watchpid.c:202 src/pv/watchpid.c:300 src/pv/watchpid.c:308
-#: src/pv/watchpid.c:385 src/pv/watchpid.c:406
+#: src/pv/loop.c:775 src/pv/loop.c:791 src/pv/loop.c:809 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
 msgid "pid"
 msgstr ""
 
-#: src/pv/state.c:40
-msgid "history structure allocation failed"
-msgstr ""
-
-#: src/pv/state.c:617 src/pv/state.c:628
-msgid "file list allocation failed"
-msgstr ""
-
-#: src/pv/transfer.c:463
-msgid "read failed"
-msgstr ""
-
-#: src/pv/transfer.c:479
-msgid "warning: read errors detected"
-msgstr ""
-
-#: src/pv/transfer.c:495
-msgid "file is not seekable"
-msgstr ""
-
-#: src/pv/transfer.c:573
-msgid "failed to seek past error"
-msgstr ""
-
-#: src/pv/transfer.c:593
-msgid "skipped past read error"
-msgstr ""
-
-#: src/pv/transfer.c:634
-msgid "no transfer buffer allocated"
-msgstr ""
-
-#: src/pv/transfer.c:676
-msgid "failed to set interval timer"
-msgstr ""
-
-#: src/pv/transfer.c:702
-msgid "failed to clear interval timer"
-msgstr ""
-
-#: src/pv/transfer.c:744
-msgid "line position buffer allocation failed"
-msgstr ""
-
-#: src/pv/transfer.c:918
-msgid "write failed"
-msgstr ""
-
-#: src/pv/transfer.c:1159
-msgid "select call failed"
-msgstr ""
-
-#: src/pv/watchpid.c:109 src/pv/watchpid.c:121 src/pv/watchpid.c:130
-#: src/pv/watchpid.c:184 src/pv/watchpid.c:193 src/pv/watchpid.c:204
+#: src/pv/loop.c:809 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
 msgid "fd"
 msgstr ""
 
-#: src/pv/watchpid.c:130 src/pv/watchpid.c:204
+#: src/pv/state.c:42
+msgid "history structure allocation failed"
+msgstr ""
+
+#: src/pv/state.c:741 src/pv/state.c:753
+msgid "file list allocation failed"
+msgstr ""
+
+#: src/pv/state.c:787
+msgid "process list allocation failed"
+msgstr ""
+
+#: src/pv/state.c:795
+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 ""
+
+#: 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:129 src/pv/watchpid.c:203
 msgid "not a regular file or block device"
 msgstr ""

po/fi.po

@@ -0,0 +1,582 @@
+#, 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: 2025-10-18 19:34+0100\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"Language: fi\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:372
+#: src/main/help.c:382
+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:363
+msgid "PID[:FD]|=NAME|@LISTFILE"
+msgstr ""
+
+#: src/main/help.c:364
+msgid "watch file FD opened by process PID"
+msgstr ""
+
+#: src/main/help.c:367
+msgid "PID"
+msgstr ""
+
+#: src/main/help.c:368
+msgid "update settings of process PID"
+msgstr ""
+
+#: src/main/help.c:373
+msgid "save process ID in FILE"
+msgstr ""
+
+#: src/main/help.c:376
+msgid "show this help and exit"
+msgstr ""
+
+#: src/main/help.c:379
+msgid "show version information and exit"
+msgstr ""
+
+#: src/main/help.c:383
+msgid "write debug logs to FILE"
+msgstr ""
+
+#: src/main/help.c:409
+#, c-format
+msgid "Usage: %s [OPTION] [FILE]..."
+msgstr ""
+
+#: src/main/help.c:420
+msgid ""
+"Concatenate FILE(s), or standard input, to standard output, with monitoring."
+msgstr ""
+
+#: src/main/help.c:558
+msgid "Supported format sequences:"
+msgstr ""
+
+#: src/main/help.c:572
+#, c-format
+msgid "Please report any bugs to: %s"
+msgstr ""
+
+#: src/main/main.c:232
+msgid "(input)"
+msgstr ""
+
+#: src/main/main.c:334
+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:804
+msgid "process ID or pid:fd pair expected"
+msgstr ""
+
+#: src/main/options.c:403 src/main/options.c:405 src/main/options.c:811
+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:651
+msgid "option structure allocation failed"
+msgstr ""
+
+#: src/main/options.c:670
+msgid "option structure argv allocation failed"
+msgstr ""
+
+#: src/main/options.c:722
+msgid "numeric value not understood"
+msgstr ""
+
+#: src/main/options.c:740
+msgid "integer argument expected"
+msgstr ""
+
+#: src/main/options.c:752
+msgid "numeric argument expected"
+msgstr ""
+
+#: src/main/options.c:764
+msgid "missing filename"
+msgstr ""
+
+#: src/main/options.c:792
+msgid "missing process name"
+msgstr ""
+
+#: src/main/options.c:1048
+#, c-format
+msgid "Try `%s --help' for more information."
+msgstr ""
+
+#: src/main/options.c:1050
+#, c-format
+msgid "Try `%s -h' for more information."
+msgstr ""
+
+#: src/main/options.c:1081
+msgid ""
+"cannot use line mode or transfer modifier options when watching file "
+"descriptors"
+msgstr ""
+
+#: src/main/options.c:1090
+msgid "cannot use cursor positioning when watching file descriptors"
+msgstr ""
+
+#: src/main/options.c:1099
+msgid "cannot use remote control when watching file descriptors"
+msgstr ""
+
+#: src/main/options.c:1108
+msgid "cannot transfer files when watching file descriptors"
+msgstr ""
+
+#: src/main/options.c:1133
+msgid "not available on systems without /proc/self/fdinfo"
+msgstr ""
+
+#: src/main/remote.c:309
+msgid "message not received"
+msgstr ""
+
+#: src/main/remote.c:444
+msgid "SA_SIGINFO not supported on this system"
+msgstr ""
+
+#: src/main/version.c:28
+msgid "License: GPLv3+ <https://www.gnu.org/licenses/gpl-3.0.html>"
+msgstr ""
+
+#: src/main/version.c:29
+msgid "This is free software: you are free to change and redistribute it."
+msgstr ""
+
+#: src/main/version.c:30
+msgid "There is NO WARRANTY, to the extent permitted by law."
+msgstr ""
+
+#: src/main/version.c:32
+msgid "Project web site"
+msgstr ""
+
+#: src/pv/cursor.c: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/loop.c:754 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:565
+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:565
+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:564
+msgid "rate min/avg/max/mdev"
+msgstr ""
+
+#: src/pv/loop.c:576
+msgid "rate not measured"
+msgstr ""
+
+#: src/pv/loop.c:775 src/pv/loop.c:791 src/pv/loop.c:809 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
+msgid "pid"
+msgstr ""
+
+#: src/pv/loop.c:809 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
+msgid "fd"
+msgstr ""
+
+#: src/pv/state.c:42
+msgid "history structure allocation failed"
+msgstr ""
+
+#: src/pv/state.c:741 src/pv/state.c:753
+msgid "file list allocation failed"
+msgstr ""
+
+#: src/pv/state.c:787
+msgid "process list allocation failed"
+msgstr ""
+
+#: src/pv/state.c:795
+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 ""
+
+#: 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:129 src/pv/watchpid.c:203
+msgid "not a regular file or block device"
+msgstr ""

po/fr.po

@@ -1,7 +1,7 @@
 msgid ""
 msgstr ""
 "Report-Msgid-Bugs-To: https://codeberg.org/ivarch/pv/issues\n"
-"POT-Creation-Date: 2025-07-26 14:50+0100\n"
+"POT-Creation-Date: 2025-10-18 19:34+0100\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:372
+#: src/main/help.c:382
 msgid "FILE"
 msgstr "FICHIER"
 
@@ -236,62 +236,66 @@ 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:363
+msgid "PID[:FD]|=NAME|@LISTFILE"
+msgstr ""
 
-#: src/main/help.c:361
+#: src/main/help.c:364
 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:367
 msgid "PID"
 msgstr "PID"
 
-#: src/main/help.c:365
+#: src/main/help.c:368
 msgid "update settings of process PID"
 msgstr "mettre à jour la configuration du processus PID"
 
-#: src/main/help.c:370
+#: src/main/help.c:373
 msgid "save process ID in FILE"
 msgstr "enregistrer l'ID de processus dans FICHIER"
 
-#: src/main/help.c:373
+#: src/main/help.c:376
 msgid "show this help and exit"
 msgstr "afficher cette aide puis quitter"
 
-#: src/main/help.c:376
+#: src/main/help.c:379
 msgid "show version information and exit"
 msgstr "afficher la version puis quitter"
 
-#: src/main/help.c:380
+#: src/main/help.c:383
 msgid "write debug logs to FILE"
 msgstr "écrire les journaux de déboggage vers FICHIER"
 
-#: src/main/help.c:406
+#: src/main/help.c:409
 #, c-format
 msgid "Usage: %s [OPTION] [FILE]..."
 msgstr "Utilisation : %s [OPTIONS] [FICHIER]..."
 
-#: src/main/help.c:417
+#: src/main/help.c:420
 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:558
 msgid "Supported format sequences:"
 msgstr "Séquences de formatage supportées :"
 
-#: src/main/help.c:569
+#: src/main/help.c:572
 #, c-format
 msgid "Please report any bugs to: %s"
 msgstr "SVP rapporter tous bogues à %s"
@@ -300,73 +304,85 @@ msgstr "SVP rapporter tous bogues à %s"
 msgid "(input)"
 msgstr "(entrée)"
 
-#: src/main/main.c:328
+#: src/main/main.c:334
 msgid "state allocation failed"
 msgstr "échec de l'allocation de mémoire de condition"
 
-#: src/main/options.c:146 src/pv/file.c:324
-msgid "failed to stat file"
-msgstr "échec à statuer sur le fichier"
+#: src/main/options.c:370
+msgid "list files may not contain @ lines"
+msgstr ""
 
-#: src/main/options.c:160
-msgid "is a directory"
-msgstr "est un répertoire"
-
-#: src/main/options.c:189
-msgid "failed to generate sysfs filename"
-msgstr "échec de génération du nom de fichier sysfs"
-
-#: src/main/options.c:211
-msgid "failed to read sysfs size file"
-msgstr "échec de la lecture de la taille du fichier sysfs"
-
-#: src/main/options.c:231
-msgid "failed to open block device"
-msgstr "échec de l'ouverture du périphérique de bloc"
-
-#: src/main/options.c:241
-msgid "failed to determine size of block device"
-msgstr "échec de l'évaluation de la taille du périphérique de bloc"
-
-#: src/main/options.c:347
-msgid "option structure allocation failed"
-msgstr "l'allocation pour la structure d'une option a échoué"
-
-#: src/main/options.c:366
-msgid "option structure argv allocation failed"
-msgstr "l'allocation pour la structure de l'option argv a échoué"
-
-#: src/main/options.c:419
-msgid "numeric value not understood"
-msgstr "valeur numérique non comprise"
-
-#: src/main/options.c:437
-msgid "integer argument expected"
-msgstr "Valeur entière attendue"
-
-#: src/main/options.c:449
-msgid "numeric argument expected"
-msgstr "Valeur numérique attendue"
-
-#: src/main/options.c:460
+#: src/main/options.c:391 src/main/options.c:393 src/main/options.c:804
 msgid "process ID or pid:fd pair expected"
 msgstr "ID de processus ou paire pid:fd attendue"
 
-#: src/main/options.c:467
+#: src/main/options.c:403 src/main/options.c:405 src/main/options.c:811
 msgid "invalid process ID"
 msgstr "ID de processus non valide"
 
-#: src/main/options.c:700
+#: src/main/options.c:448 src/pv/file.c:342
+msgid "failed to stat file"
+msgstr "échec à statuer sur le fichier"
+
+#: src/main/options.c:462
+msgid "is a directory"
+msgstr "est un répertoire"
+
+#: src/main/options.c:491
+msgid "failed to generate sysfs filename"
+msgstr "échec de génération du nom de fichier sysfs"
+
+#: src/main/options.c:513
+msgid "failed to read sysfs size file"
+msgstr "échec de la lecture de la taille du fichier sysfs"
+
+#: src/main/options.c:533
+msgid "failed to open block device"
+msgstr "échec de l'ouverture du périphérique de bloc"
+
+#: src/main/options.c:543
+msgid "failed to determine size of block device"
+msgstr "échec de l'évaluation de la taille du périphérique de bloc"
+
+#: src/main/options.c:651
+msgid "option structure allocation failed"
+msgstr "l'allocation pour la structure d'une option a échoué"
+
+#: src/main/options.c:670
+msgid "option structure argv allocation failed"
+msgstr "l'allocation pour la structure de l'option argv a échoué"
+
+#: src/main/options.c:722
+msgid "numeric value not understood"
+msgstr "valeur numérique non comprise"
+
+#: src/main/options.c:740
+msgid "integer argument expected"
+msgstr "Valeur entière attendue"
+
+#: src/main/options.c:752
+msgid "numeric argument expected"
+msgstr "Valeur numérique attendue"
+
+#: src/main/options.c:764
+msgid "missing filename"
+msgstr ""
+
+#: src/main/options.c:792
+msgid "missing process name"
+msgstr ""
+
+#: src/main/options.c:1048
 #, c-format
 msgid "Try `%s --help' for more information."
 msgstr "Essayez `%s --help' pour plus d'informations."
 
-#: src/main/options.c:702
+#: src/main/options.c:1050
 #, c-format
 msgid "Try `%s -h' for more information."
 msgstr "Essayez `%s -h' pour plus d'informations."
 
-#: src/main/options.c:733
+#: src/main/options.c:1081
 msgid ""
 "cannot use line mode or transfer modifier options when watching file "
 "descriptors"
@@ -374,25 +390,25 @@ 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:742
+#: src/main/options.c:1090
 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:751
+#: src/main/options.c:1099
 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:760
+#: src/main/options.c:1108
 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:775
+#: src/main/options.c:1133
 msgid "not available on systems without /proc/self/fdinfo"
 msgstr "non disponible sur les systèmes sans /proc/self/fdinfo"
 
@@ -400,7 +416,7 @@ msgstr "non disponible sur les systèmes sans /proc/self/fdinfo"
 msgid "message not received"
 msgstr "message non reçu"
 
-#: src/main/remote.c:440
+#: src/main/remote.c:444
 msgid "SA_SIGINFO not supported on this system"
 msgstr "SA_SIGINFO non pris en charge sur ce système"
 
@@ -438,153 +454,165 @@ msgstr "échec de la tentative de verrouillage"
 msgid "failed to open terminal"
 msgstr "échec de l'ouverture du terminal"
 
-#: src/pv/display.c:249
+#: src/pv/display.c:285
 msgid "yzafpnum kMGTPEZY"
 msgstr "yzafpnum kMGTPEZY"
 
-#: src/pv/display.c:267
+#: src/pv/display.c:303
 msgid "yzafpnum KMGTPEZY"
 msgstr "yzafpnum KMGTPEZY"
 
-#: src/pv/display.c:989 src/pv/transfer.c:1057
+#: src/pv/display.c:1053 src/pv/loop.c:754 src/pv/transfer.c:1135
 msgid "buffer allocation failed"
 msgstr "échec de l'allocation de mémoire tampon"
 
-#: src/pv/file.c:149
+#: src/pv/file.c:153
 msgid "failed to seek to start of output"
 msgstr "ne peut pas passer au début de la sortie"
 
-#: src/pv/file.c:294
+#: src/pv/file.c:303
 msgid "failed to close file"
 msgstr "la fermeture du fichier a échoué"
 
-#: src/pv/file.c:317
+#: src/pv/file.c:335
 msgid "failed to read file"
 msgstr "la lecture du fichier a échoué"
 
-#: src/pv/file.c:332
+#: src/pv/file.c:350
 msgid "failed to stat output file"
 msgstr "échec à statuer sur le fichier de sortie"
 
-#: src/pv/file.c:354
+#: src/pv/file.c:372
 msgid "input file is output file"
 msgstr "fichiers d'entré et de sortie sont les mêmes"
 
-#: src/pv/file.c:412
+#: src/pv/file.c:429
 msgid "(none)"
 msgstr "(aucun)"
 
-#: src/pv/file.c:414
+#: src/pv/file.c:431
 msgid "(stdin)"
 msgstr "(stdin)"
 
-#: src/pv/format/averagerate.c:34 src/pv/format/progressbar.c:93
-#: src/pv/format/rate.c:37 src/pv/loop.c:562
+#: src/pv/format/averagerate.c:34 src/pv/format/progressbar.c:92
+#: src/pv/format/rate.c:36 src/pv/loop.c:565
 msgid "b/s"
 msgstr "b/s"
 
-#: src/pv/format/averagerate.c:38 src/pv/format/progressbar.c:97
-#: src/pv/format/rate.c:41
+#: src/pv/format/averagerate.c:38 src/pv/format/progressbar.c:96
+#: src/pv/format/rate.c:40
 msgid "/s"
 msgstr "/s"
 
-#: src/pv/format/averagerate.c:38 src/pv/format/progressbar.c:97
-#: src/pv/format/rate.c:41 src/pv/loop.c:562
+#: src/pv/format/averagerate.c:38 src/pv/format/progressbar.c:96
+#: src/pv/format/rate.c:40 src/pv/loop.c:565
 msgid "B/s"
 msgstr "O/s"
 
-#: src/pv/format/bytes.c:37
+#: src/pv/format/bytes.c:35
 msgid "b"
 msgstr "b"
 
-#: src/pv/format/bytes.c:41 src/pv/transfer.c:594
+#: src/pv/format/bytes.c:39 src/pv/transfer.c:620
 msgid "B"
 msgstr "O"
 
-#: src/pv/format/eta.c:53 src/pv/format/eta.c:57
+#: src/pv/format/eta.c:52 src/pv/format/eta.c:56
 msgid "ETA"
 msgstr "ETA"
 
-#: src/pv/format/fineta.c:81
+#: src/pv/format/fineta.c:80
 msgid "FIN"
 msgstr "FIN"
 
-#: src/pv/loop.c:561
+#: src/pv/loop.c:564
 msgid "rate min/avg/max/mdev"
 msgstr "taux min/moy/max/écart-type"
 
-#: src/pv/loop.c:573
+#: src/pv/loop.c:576
 msgid "rate not measured"
 msgstr "taux non mesuré"
 
-#: src/pv/loop.c:783 src/pv/loop.c:834 src/pv/loop.c:887 src/pv/watchpid.c:99
-#: src/pv/watchpid.c:109 src/pv/watchpid.c:120 src/pv/watchpid.c:128
-#: src/pv/watchpid.c:165 src/pv/watchpid.c:184 src/pv/watchpid.c:192
-#: src/pv/watchpid.c:202 src/pv/watchpid.c:300 src/pv/watchpid.c:308
-#: src/pv/watchpid.c:385 src/pv/watchpid.c:406
+#: src/pv/loop.c:775 src/pv/loop.c:791 src/pv/loop.c:809 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
 msgid "pid"
 msgstr "pid"
 
-#: src/pv/state.c:40
-msgid "history structure allocation failed"
-msgstr "l'allocation de la structure de l'historique a échoué"
-
-#: src/pv/state.c:617 src/pv/state.c:628
-msgid "file list allocation failed"
-msgstr "échec de l'allocation de la liste de fichiers"
-
-#: src/pv/transfer.c:463
-msgid "read failed"
-msgstr "la lecture a échoué"
-
-#: src/pv/transfer.c:479
-msgid "warning: read errors detected"
-msgstr "avertissement : erreurs de lecture détectées"
-
-#: src/pv/transfer.c:495
-msgid "file is not seekable"
-msgstr "ne peut pas se déplacer dans le fichier"
-
-#: src/pv/transfer.c:573
-msgid "failed to seek past error"
-msgstr "n'a pas réussi à dépasser l'erreur"
-
-#: src/pv/transfer.c:593
-msgid "skipped past read error"
-msgstr "erreur de lecture dépassée"
-
-#: src/pv/transfer.c:634
-msgid "no transfer buffer allocated"
-msgstr "aucun tampon de transfert alloué"
-
-#: src/pv/transfer.c:676
-msgid "failed to set interval timer"
-msgstr "La définition de l'intervalle du minuteur a échoué"
-
-#: src/pv/transfer.c:702
-msgid "failed to clear interval timer"
-msgstr "La réinitialisation des intervalles du minuteur a échoué"
-
-#: src/pv/transfer.c:744
-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:918
-msgid "write failed"
-msgstr "l'écriture a échoué"
-
-#: src/pv/transfer.c:1159
-msgid "select call failed"
-msgstr "l'appel de sélection a échoué"
-
-#: src/pv/watchpid.c:109 src/pv/watchpid.c:121 src/pv/watchpid.c:130
-#: src/pv/watchpid.c:184 src/pv/watchpid.c:193 src/pv/watchpid.c:204
+#: src/pv/loop.c:809 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
 msgid "fd"
 msgstr "fd"
 
-#: src/pv/watchpid.c:130 src/pv/watchpid.c:204
+#: 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:741 src/pv/state.c:753
+msgid "file list allocation failed"
+msgstr "échec de l'allocation de la liste de fichiers"
+
+#: src/pv/state.c:787
+msgid "process list allocation failed"
+msgstr ""
+
+#: src/pv/state.c:795
+msgid "file descriptor list allocation failed"
+msgstr ""
+
+#: src/pv/transfer.c:490
+msgid "read failed"
+msgstr "la lecture a échoué"
+
+#: src/pv/transfer.c:506
+msgid "warning: read errors detected"
+msgstr "avertissement : erreurs de lecture détectées"
+
+#: src/pv/transfer.c:522
+msgid "file is not seekable"
+msgstr "ne peut pas se déplacer dans le fichier"
+
+#: src/pv/transfer.c:599
+msgid "failed to seek past error"
+msgstr "n'a pas réussi à dépasser l'erreur"
+
+#: src/pv/transfer.c:619
+msgid "skipped past read error"
+msgstr "erreur de lecture dépassée"
+
+#: src/pv/transfer.c:663
+msgid "no transfer buffer allocated"
+msgstr "aucun tampon de transfert alloué"
+
+#: 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:777
+msgid "failed to clear interval timer"
+msgstr "La réinitialisation des intervalles du minuteur a échoué"
+
+#: 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:996
+msgid "write failed"
+msgstr "l'écriture a échoué"
+
+#: 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
 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/pl.po

@@ -6,9 +6,9 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: https://codeberg.org/ivarch/pv/issues\n"
-"POT-Creation-Date: 2025-07-26 14:50+0100\n"
-"PO-Revision-Date: 2025-01-15 19:08+0000\n"
-"Last-Translator: coralpink <coralpink@users.noreply.translate.codeberg.org>\n"
+"POT-Creation-Date: 2025-10-18 19:34+0100\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"
 "Language: pl\n"
 "MIME-Version: 1.0\n"
@@ -16,7 +16,7 @@ msgstr ""
 "Content-Transfer-Encoding: 8bit\n"
 "Plural-Forms: nplurals=3; plural=n==1 ? 0 : n%10>=2 && n%10<=4 && (n%100<10 "
 "|| n%100>=20) ? 1 : 2;\n"
-"X-Generator: Weblate 5.9.2\n"
+"X-Generator: Weblate 5.13.2\n"
 
 #: src/main/help.c:236
 msgid "show progress bar"
@@ -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:372
+#: src/main/help.c:382
 msgid "FILE"
 msgstr "PLIK"
 
@@ -229,63 +229,67 @@ 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:363
+msgid "PID[:FD]|=NAME|@LISTFILE"
+msgstr ""
 
-#: src/main/help.c:361
+#: src/main/help.c:364
 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:367
 msgid "PID"
 msgstr "PID"
 
-#: src/main/help.c:365
+#: src/main/help.c:368
 msgid "update settings of process PID"
 msgstr "zaktualizuj ustawienia procesu PID"
 
-#: src/main/help.c:370
+#: src/main/help.c:373
 msgid "save process ID in FILE"
 msgstr "zapisz ID procesu do PLIK"
 
-#: src/main/help.c:373
+#: src/main/help.c:376
 msgid "show this help and exit"
 msgstr "wyświetl te informacje z pomocą i wyjdź"
 
-#: src/main/help.c:376
+#: src/main/help.c:379
 msgid "show version information and exit"
 msgstr "wyświetl informacje o wersji i wyjdź"
 
-#: src/main/help.c:380
+#: src/main/help.c:383
 msgid "write debug logs to FILE"
 msgstr "zapisz logi debugujące do PLIK"
 
-#: src/main/help.c:406
+#: src/main/help.c:409
 #, c-format
 msgid "Usage: %s [OPTION] [FILE]..."
 msgstr "Sposób użycia: %s [OPCJA] [PLIK]..."
 
-#: src/main/help.c:417
+#: src/main/help.c:420
 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:558
 msgid "Supported format sequences:"
 msgstr "Wspierane sekwencje formatowania:"
 
-#: src/main/help.c:569
+#: src/main/help.c:572
 #, c-format
 msgid "Please report any bugs to: %s"
 msgstr "Proszę przesyłać zgłoszenia błędów do %s"
@@ -294,73 +298,85 @@ msgstr "Proszę przesyłać zgłoszenia błędów do %s"
 msgid "(input)"
 msgstr "(wejście)"
 
-#: src/main/main.c:328
+#: src/main/main.c:334
 msgid "state allocation failed"
 msgstr "alokacja stanu programu nie powiodła się"
 
-#: src/main/options.c:146 src/pv/file.c:324
-msgid "failed to stat file"
-msgstr "nie udało się wykonać operacji stat na pliku"
+#: src/main/options.c:370
+msgid "list files may not contain @ lines"
+msgstr ""
 
-#: src/main/options.c:160
-msgid "is a directory"
-msgstr "jest katalogiem"
-
-#: src/main/options.c:189
-msgid "failed to generate sysfs filename"
-msgstr "nie udało się wygenerować nazwy pliku dla sysfs"
-
-#: src/main/options.c:211
-msgid "failed to read sysfs size file"
-msgstr "nie udało się odczytać rozmiaru pliku sysfs"
-
-#: src/main/options.c:231
-msgid "failed to open block device"
-msgstr "nie udało się otworzyć urządzenia blokowego"
-
-#: src/main/options.c:241
-msgid "failed to determine size of block device"
-msgstr "nie udało się ustalić rozmiaru urządzenia blokowego"
-
-#: src/main/options.c:347
-msgid "option structure allocation failed"
-msgstr "nie udało się zaalokować struktur opcji"
-
-#: src/main/options.c:366
-msgid "option structure argv allocation failed"
-msgstr "nie udało się zaalokować struktur opcji argv"
-
-#: src/main/options.c:419
-msgid "numeric value not understood"
-msgstr "wartość liczbowa niezrozumiana"
-
-#: src/main/options.c:437
-msgid "integer argument expected"
-msgstr "oczekiwany argument typu liczby całkowitej"
-
-#: src/main/options.c:449
-msgid "numeric argument expected"
-msgstr "oczekiwany argument liczbowy"
-
-#: src/main/options.c:460
+#: src/main/options.c:391 src/main/options.c:393 src/main/options.c:804
 msgid "process ID or pid:fd pair expected"
 msgstr "oczekiwany proces ID lub para PID:FD"
 
-#: src/main/options.c:467
+#: src/main/options.c:403 src/main/options.c:405 src/main/options.c:811
 msgid "invalid process ID"
 msgstr "niepoprawne ID procesu"
 
-#: src/main/options.c:700
+#: src/main/options.c:448 src/pv/file.c:342
+msgid "failed to stat file"
+msgstr "nie udało się wykonać operacji stat na pliku"
+
+#: src/main/options.c:462
+msgid "is a directory"
+msgstr "jest katalogiem"
+
+#: src/main/options.c:491
+msgid "failed to generate sysfs filename"
+msgstr "nie udało się wygenerować nazwy pliku dla sysfs"
+
+#: src/main/options.c:513
+msgid "failed to read sysfs size file"
+msgstr "nie udało się odczytać rozmiaru pliku sysfs"
+
+#: src/main/options.c:533
+msgid "failed to open block device"
+msgstr "nie udało się otworzyć urządzenia blokowego"
+
+#: src/main/options.c:543
+msgid "failed to determine size of block device"
+msgstr "nie udało się ustalić rozmiaru urządzenia blokowego"
+
+#: src/main/options.c:651
+msgid "option structure allocation failed"
+msgstr "nie udało się zaalokować struktur opcji"
+
+#: src/main/options.c:670
+msgid "option structure argv allocation failed"
+msgstr "nie udało się zaalokować struktur opcji argv"
+
+#: src/main/options.c:722
+msgid "numeric value not understood"
+msgstr "wartość liczbowa niezrozumiana"
+
+#: src/main/options.c:740
+msgid "integer argument expected"
+msgstr "oczekiwany argument typu liczby całkowitej"
+
+#: src/main/options.c:752
+msgid "numeric argument expected"
+msgstr "oczekiwany argument liczbowy"
+
+#: src/main/options.c:764
+msgid "missing filename"
+msgstr ""
+
+#: src/main/options.c:792
+msgid "missing process name"
+msgstr ""
+
+#: src/main/options.c:1048
 #, c-format
 msgid "Try `%s --help' for more information."
 msgstr "Spróbuj `%s --help' by uzyskać więcej informacji."
 
-#: src/main/options.c:702
+#: src/main/options.c:1050
 #, c-format
 msgid "Try `%s -h' for more information."
 msgstr "Spróbuj `%s -h' by uzyskać więcej informacji."
 
-#: src/main/options.c:733
+#: src/main/options.c:1081
 msgid ""
 "cannot use line mode or transfer modifier options when watching file "
 "descriptors"
@@ -368,23 +384,23 @@ msgstr ""
 "nie można użyć trybu zliczania linii lub opcji modyfikujących przesył "
 "łącznie z opcją obserwowania deskryptorów plików"
 
-#: src/main/options.c:742
+#: src/main/options.c:1090
 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:751
+#: src/main/options.c:1099
 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:760
+#: src/main/options.c:1108
 msgid "cannot transfer files when watching file descriptors"
 msgstr "nie można przesyłać plików z opcją obserwowania deskryptorów plików"
 
-#: src/main/options.c:775
+#: src/main/options.c:1133
 msgid "not available on systems without /proc/self/fdinfo"
 msgstr "niedostępne na systemach bez /proc/self/fdinfo"
 
@@ -392,7 +408,7 @@ msgstr "niedostępne na systemach bez /proc/self/fdinfo"
 msgid "message not received"
 msgstr "wiadomość nieodebrana"
 
-#: src/main/remote.c:440
+#: src/main/remote.c:444
 msgid "SA_SIGINFO not supported on this system"
 msgstr "SA_SIGINFO nie jest wspierane na tym systemie"
 
@@ -429,152 +445,164 @@ msgstr "blokada zasobów nie powiodła się"
 msgid "failed to open terminal"
 msgstr "nie udało się otworzyć terminala"
 
-#: src/pv/display.c:249
+#: src/pv/display.c:285
 msgid "yzafpnum kMGTPEZY"
 msgstr "yzafpnum kMGTPEZY"
 
-#: src/pv/display.c:267
+#: src/pv/display.c:303
 msgid "yzafpnum KMGTPEZY"
 msgstr "yzafpnum KMGTPEZY"
 
-#: src/pv/display.c:989 src/pv/transfer.c:1057
+#: src/pv/display.c:1053 src/pv/loop.c:754 src/pv/transfer.c:1135
 msgid "buffer allocation failed"
 msgstr "nie udało się zaalokować bufora"
 
-#: src/pv/file.c:149
+#: src/pv/file.c:153
 msgid "failed to seek to start of output"
 msgstr "nie udało się przewinąć wyjścia do początku"
 
 # "Przewidywany czas ukończenia" for ETA is too long
-#: src/pv/file.c:294
+#: src/pv/file.c:303
 msgid "failed to close file"
 msgstr "nie udało się zamknąć pliku"
 
-#: src/pv/file.c:317
+#: src/pv/file.c:335
 msgid "failed to read file"
 msgstr "nie udało się odczytać pliku"
 
-#: src/pv/file.c:332
+#: src/pv/file.c:350
 msgid "failed to stat output file"
 msgstr "nie udało się wykonać operacji stat na pliku wyjściowym"
 
-#: src/pv/file.c:354
+#: src/pv/file.c:372
 msgid "input file is output file"
 msgstr "plik wejściowy jest zarazem plikiem wyjściowym"
 
-#: src/pv/file.c:412
+#: src/pv/file.c:429
 msgid "(none)"
 msgstr "(brak)"
 
-#: src/pv/file.c:414
+#: src/pv/file.c:431
 msgid "(stdin)"
 msgstr "(stdin)"
 
-#: src/pv/format/averagerate.c:34 src/pv/format/progressbar.c:93
-#: src/pv/format/rate.c:37 src/pv/loop.c:562
+#: src/pv/format/averagerate.c:34 src/pv/format/progressbar.c:92
+#: src/pv/format/rate.c:36 src/pv/loop.c:565
 msgid "b/s"
 msgstr "b/s"
 
-#: src/pv/format/averagerate.c:38 src/pv/format/progressbar.c:97
-#: src/pv/format/rate.c:41
+#: src/pv/format/averagerate.c:38 src/pv/format/progressbar.c:96
+#: src/pv/format/rate.c:40
 msgid "/s"
 msgstr "/s"
 
-#: src/pv/format/averagerate.c:38 src/pv/format/progressbar.c:97
-#: src/pv/format/rate.c:41 src/pv/loop.c:562
+#: src/pv/format/averagerate.c:38 src/pv/format/progressbar.c:96
+#: src/pv/format/rate.c:40 src/pv/loop.c:565
 msgid "B/s"
 msgstr "B/s"
 
-#: src/pv/format/bytes.c:37
+#: src/pv/format/bytes.c:35
 msgid "b"
 msgstr "b"
 
-#: src/pv/format/bytes.c:41 src/pv/transfer.c:594
+#: src/pv/format/bytes.c:39 src/pv/transfer.c:620
 msgid "B"
 msgstr "B"
 
-#: src/pv/format/eta.c:53 src/pv/format/eta.c:57
+#: src/pv/format/eta.c:52 src/pv/format/eta.c:56
 msgid "ETA"
 msgstr "ETA"
 
-#: src/pv/format/fineta.c:81
+#: src/pv/format/fineta.c:80
 msgid "FIN"
 msgstr "FIN"
 
-#: src/pv/loop.c:561
+#: src/pv/loop.c:564
 msgid "rate min/avg/max/mdev"
 msgstr "prędkość min/śr/max/odch"
 
-#: src/pv/loop.c:573
+#: src/pv/loop.c:576
 msgid "rate not measured"
 msgstr "prędkość niezmierzona"
 
-#: src/pv/loop.c:783 src/pv/loop.c:834 src/pv/loop.c:887 src/pv/watchpid.c:99
-#: src/pv/watchpid.c:109 src/pv/watchpid.c:120 src/pv/watchpid.c:128
-#: src/pv/watchpid.c:165 src/pv/watchpid.c:184 src/pv/watchpid.c:192
-#: src/pv/watchpid.c:202 src/pv/watchpid.c:300 src/pv/watchpid.c:308
-#: src/pv/watchpid.c:385 src/pv/watchpid.c:406
+#: src/pv/loop.c:775 src/pv/loop.c:791 src/pv/loop.c:809 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
 msgid "pid"
 msgstr "pid"
 
-#: src/pv/state.c:40
+#: src/pv/loop.c:809 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
+msgid "fd"
+msgstr "fd"
+
+#: src/pv/state.c:42
 msgid "history structure allocation failed"
 msgstr "nie udało się zaalokować struktury historii"
 
-#: src/pv/state.c:617 src/pv/state.c:628
+#: src/pv/state.c:741 src/pv/state.c:753
 msgid "file list allocation failed"
 msgstr "nie udało się zaalokować listy plików"
 
-#: src/pv/transfer.c:463
+#: src/pv/state.c:787
+msgid "process list allocation failed"
+msgstr "nie udało się zaalokować listy procesów"
+
+#: src/pv/state.c:795
+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"
 
-#: src/pv/transfer.c:479
+#: src/pv/transfer.c:506
 msgid "warning: read errors detected"
 msgstr "ostrzeżenie: błędy odczytu wykryte"
 
-#: src/pv/transfer.c:495
+#: src/pv/transfer.c:522
 msgid "file is not seekable"
 msgstr "pliku nie da się przewijać"
 
-#: src/pv/transfer.c:573
+#: src/pv/transfer.c:599
 msgid "failed to seek past error"
 msgstr "nie udało się przewinąć za błąd"
 
-#: src/pv/transfer.c:593
+#: src/pv/transfer.c:619
 msgid "skipped past read error"
 msgstr "pominięto błąd odczytu"
 
-#: src/pv/transfer.c:634
+#: src/pv/transfer.c:663
 msgid "no transfer buffer allocated"
 msgstr "brak zaalokowanego bufora transferu"
 
-#: src/pv/transfer.c:676
+#: 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:702
+#: src/pv/transfer.c:777
 msgid "failed to clear interval timer"
 msgstr "nie udało się wyczyścić interwału czasowego"
 
-#: src/pv/transfer.c:744
+#: src/pv/transfer.c:822
 msgid "line position buffer allocation failed"
 msgstr "alokacja buforu pozycji linii nie powiodła się"
 
-#: src/pv/transfer.c:918
+#: src/pv/transfer.c:996
 msgid "write failed"
 msgstr "błąd zapisu"
 
-#: src/pv/transfer.c:1159
+#: src/pv/transfer.c:1237
 msgid "select call failed"
 msgstr "nie udało się wywołać funkcji select"
 
-#: src/pv/watchpid.c:109 src/pv/watchpid.c:121 src/pv/watchpid.c:130
-#: src/pv/watchpid.c:184 src/pv/watchpid.c:193 src/pv/watchpid.c:204
-msgid "fd"
-msgstr "fd"
-
-#: src/pv/watchpid.c:130 src/pv/watchpid.c:204
+#: src/pv/watchpid.c:129 src/pv/watchpid.c:203
 msgid "not a regular file or block device"
 msgstr "plik nie jest plikiem regularnym lub urządzeniem blokowym"
+
+#~ 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: 2025-07-26 14:50+0100\n"
+"POT-Creation-Date: 2025-10-18 19:34+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"
@@ -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:372
+#: src/main/help.c:382
 msgid "FILE"
 msgstr ""
 
@@ -221,62 +221,66 @@ 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 "write all input to FILE before writing to output"
+msgstr ""
+
+#: src/main/help.c:363
+msgid "PID[:FD]|=NAME|@LISTFILE"
+msgstr ""
+
+#: src/main/help.c:364
 msgid "watch file FD opened by process PID"
 msgstr "assistir arquivo FD aberto pelo processo PID"
 
-#: src/main/help.c:364
+#: src/main/help.c:367
 msgid "PID"
 msgstr ""
 
-#: src/main/help.c:365
+#: src/main/help.c:368
 msgid "update settings of process PID"
 msgstr "atualizar as configurações do processo PID"
 
-#: src/main/help.c:370
+#: src/main/help.c:373
 msgid "save process ID in FILE"
 msgstr "salvar ID do processo em FILE"
 
-#: src/main/help.c:373
+#: src/main/help.c:376
 msgid "show this help and exit"
 msgstr "exibe esta tela de ajuda e termina"
 
-#: src/main/help.c:376
+#: src/main/help.c:379
 msgid "show version information and exit"
 msgstr "exibe a versão e termina"
 
-#: src/main/help.c:380
+#: src/main/help.c:383
 msgid "write debug logs to FILE"
 msgstr ""
 
-#: src/main/help.c:406
+#: src/main/help.c:409
 #, c-format
 msgid "Usage: %s [OPTION] [FILE]..."
 msgstr "Uso: %s [OPÇÕES] [ARQUIVOS]..."
 
-#: src/main/help.c:417
+#: src/main/help.c:420
 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:558
 msgid "Supported format sequences:"
 msgstr ""
 
-#: src/main/help.c:569
+#: src/main/help.c:572
 #, c-format
 msgid "Please report any bugs to: %s"
 msgstr "Por favor, reporte quaisquer defeitos para %s"
@@ -285,73 +289,85 @@ msgstr "Por favor, reporte quaisquer defeitos para %s"
 msgid "(input)"
 msgstr ""
 
-#: src/main/main.c:328
+#: src/main/main.c:334
 msgid "state allocation failed"
 msgstr "alocação de memória de status falhou"
 
-#: src/main/options.c:146 src/pv/file.c:324
-msgid "failed to stat file"
-msgstr "erro obtendo informações do arquivo"
-
-#: src/main/options.c:160
-msgid "is a directory"
+#: src/main/options.c:370
+msgid "list files may not contain @ lines"
 msgstr ""
 
-#: src/main/options.c:189
-msgid "failed to generate sysfs filename"
-msgstr ""
-
-#: src/main/options.c:211
-msgid "failed to read sysfs size file"
-msgstr ""
-
-#: src/main/options.c:231
-msgid "failed to open block device"
-msgstr ""
-
-#: src/main/options.c:241
-msgid "failed to determine size of block device"
-msgstr ""
-
-#: src/main/options.c:347
-msgid "option structure allocation failed"
-msgstr "erro na alocação da estrutura de opções"
-
-#: src/main/options.c:366
-msgid "option structure argv allocation failed"
-msgstr "erro na alocação da estrutura de opções argv"
-
-#: src/main/options.c:419
-msgid "numeric value not understood"
-msgstr ""
-
-#: src/main/options.c:437
-msgid "integer argument expected"
-msgstr "argumento inteiro esperado"
-
-#: src/main/options.c:449
-msgid "numeric argument expected"
-msgstr "argumento numérico esperado"
-
-#: src/main/options.c:460
+#: src/main/options.c:391 src/main/options.c:393 src/main/options.c:804
 msgid "process ID or pid:fd pair expected"
 msgstr "ID do processo ou par pid:fd esperado"
 
-#: src/main/options.c:467
+#: src/main/options.c:403 src/main/options.c:405 src/main/options.c:811
 msgid "invalid process ID"
 msgstr "ID de processo inválido"
 
-#: src/main/options.c:700
+#: src/main/options.c:448 src/pv/file.c:342
+msgid "failed to stat file"
+msgstr "erro obtendo informações do arquivo"
+
+#: 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:651
+msgid "option structure allocation failed"
+msgstr "erro na alocação da estrutura de opções"
+
+#: src/main/options.c:670
+msgid "option structure argv allocation failed"
+msgstr "erro na alocação da estrutura de opções argv"
+
+#: src/main/options.c:722
+msgid "numeric value not understood"
+msgstr ""
+
+#: src/main/options.c:740
+msgid "integer argument expected"
+msgstr "argumento inteiro esperado"
+
+#: src/main/options.c:752
+msgid "numeric argument expected"
+msgstr "argumento numérico esperado"
+
+#: src/main/options.c:764
+msgid "missing filename"
+msgstr ""
+
+#: src/main/options.c:792
+msgid "missing process name"
+msgstr ""
+
+#: src/main/options.c:1048
 #, c-format
 msgid "Try `%s --help' for more information."
 msgstr "Tente `%s --help' para maiores informações."
 
-#: src/main/options.c:702
+#: src/main/options.c:1050
 #, c-format
 msgid "Try `%s -h' for more information."
 msgstr "Tente `%s -h' para maiores informações."
 
-#: src/main/options.c:733
+#: src/main/options.c:1081
 msgid ""
 "cannot use line mode or transfer modifier options when watching file "
 "descriptors"
@@ -359,21 +375,21 @@ msgstr ""
 "não pode usar o modo de linha ou opções de modificador de transferência ao "
 "assistir os descritores de arquivo"
 
-#: src/main/options.c:742
+#: src/main/options.c:1090
 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:751
+#: src/main/options.c:1099
 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:760
+#: src/main/options.c:1108
 msgid "cannot transfer files when watching file descriptors"
 msgstr "não pode transferir arquivos ao assistir descritores de arquivo"
 
-#: src/main/options.c:775
+#: src/main/options.c:1133
 msgid "not available on systems without /proc/self/fdinfo"
 msgstr "não disponível em sistemas sem /proc/self/fdinfo"
 
@@ -381,7 +397,7 @@ msgstr "não disponível em sistemas sem /proc/self/fdinfo"
 msgid "message not received"
 msgstr "mensagem não recebida"
 
-#: src/main/remote.c:440
+#: src/main/remote.c:444
 msgid "SA_SIGINFO not supported on this system"
 msgstr "SA_SIGINFO não suportado neste sistema"
 
@@ -417,150 +433,159 @@ msgstr "tentativa de bloqueio falhou"
 msgid "failed to open terminal"
 msgstr "erro abrindo o terminal"
 
-#: src/pv/display.c:249
+#: src/pv/display.c:285
 msgid "yzafpnum kMGTPEZY"
 msgstr ""
 
-#: src/pv/display.c:267
+#: src/pv/display.c:303
 msgid "yzafpnum KMGTPEZY"
 msgstr ""
 
-#: src/pv/display.c:989 src/pv/transfer.c:1057
+#: src/pv/display.c:1053 src/pv/loop.c:754 src/pv/transfer.c:1135
 msgid "buffer allocation failed"
 msgstr "erro alocando o buffer"
 
-#: src/pv/file.c:149
+#: src/pv/file.c:153
 msgid "failed to seek to start of output"
 msgstr "não pode mover para o início da produção"
 
-#: src/pv/file.c:294
+#: src/pv/file.c:303
 msgid "failed to close file"
 msgstr "erro fechando o arquivo"
 
-#: src/pv/file.c:317
+#: src/pv/file.c:335
 msgid "failed to read file"
 msgstr "erro lendo o arquivo"
 
-#: src/pv/file.c:332
+#: src/pv/file.c:350
 msgid "failed to stat output file"
 msgstr "erro obtendo informações do arquivo de saída"
 
-#: src/pv/file.c:354
+#: src/pv/file.c:372
 msgid "input file is output file"
 msgstr "os arquivos de entrada e saída são o mesmo"
 
-#: src/pv/file.c:412
+#: src/pv/file.c:429
 msgid "(none)"
 msgstr ""
 
-#: src/pv/file.c:414
+#: src/pv/file.c:431
 msgid "(stdin)"
 msgstr ""
 
-#: src/pv/format/averagerate.c:34 src/pv/format/progressbar.c:93
-#: src/pv/format/rate.c:37 src/pv/loop.c:562
+#: src/pv/format/averagerate.c:34 src/pv/format/progressbar.c:92
+#: src/pv/format/rate.c:36 src/pv/loop.c:565
 msgid "b/s"
 msgstr ""
 
-#: src/pv/format/averagerate.c:38 src/pv/format/progressbar.c:97
-#: src/pv/format/rate.c:41
+#: 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:97
-#: src/pv/format/rate.c:41 src/pv/loop.c:562
+#: src/pv/format/averagerate.c:38 src/pv/format/progressbar.c:96
+#: src/pv/format/rate.c:40 src/pv/loop.c:565
 msgid "B/s"
 msgstr "B/s"
 
-#: src/pv/format/bytes.c:37
+#: src/pv/format/bytes.c:35
 msgid "b"
 msgstr ""
 
-#: src/pv/format/bytes.c:41 src/pv/transfer.c:594
+#: src/pv/format/bytes.c:39 src/pv/transfer.c:620
 msgid "B"
 msgstr ""
 
-#: src/pv/format/eta.c:53 src/pv/format/eta.c:57
+#: src/pv/format/eta.c:52 src/pv/format/eta.c:56
 msgid "ETA"
 msgstr "ETA"
 
-#: src/pv/format/fineta.c:81
+#: src/pv/format/fineta.c:80
 msgid "FIN"
 msgstr ""
 
-#: src/pv/loop.c:561
+#: src/pv/loop.c:564
 msgid "rate min/avg/max/mdev"
 msgstr ""
 
-#: src/pv/loop.c:573
+#: src/pv/loop.c:576
 msgid "rate not measured"
 msgstr ""
 
-#: src/pv/loop.c:783 src/pv/loop.c:834 src/pv/loop.c:887 src/pv/watchpid.c:99
-#: src/pv/watchpid.c:109 src/pv/watchpid.c:120 src/pv/watchpid.c:128
-#: src/pv/watchpid.c:165 src/pv/watchpid.c:184 src/pv/watchpid.c:192
-#: src/pv/watchpid.c:202 src/pv/watchpid.c:300 src/pv/watchpid.c:308
-#: src/pv/watchpid.c:385 src/pv/watchpid.c:406
+#: src/pv/loop.c:775 src/pv/loop.c:791 src/pv/loop.c:809 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
 msgid "pid"
 msgstr ""
 
-#: src/pv/state.c:40
-msgid "history structure allocation failed"
-msgstr ""
-
-#: src/pv/state.c:617 src/pv/state.c:628
-msgid "file list allocation failed"
-msgstr ""
-
-#: src/pv/transfer.c:463
-msgid "read failed"
-msgstr "erro de leitura"
-
-#: src/pv/transfer.c:479
-msgid "warning: read errors detected"
-msgstr "aviso: erros de leitura detectados"
-
-#: src/pv/transfer.c:495
-msgid "file is not seekable"
-msgstr "não pode mover dentro do arquivo"
-
-#: src/pv/transfer.c:573
-msgid "failed to seek past error"
-msgstr "não pode ir além do erro"
-
-#: src/pv/transfer.c:593
-msgid "skipped past read error"
-msgstr "ignorado erro de leitura"
-
-#: src/pv/transfer.c:634
-msgid "no transfer buffer allocated"
-msgstr ""
-
-#: src/pv/transfer.c:676
-msgid "failed to set interval timer"
-msgstr ""
-
-#: src/pv/transfer.c:702
-msgid "failed to clear interval timer"
-msgstr ""
-
-#: src/pv/transfer.c:744
-msgid "line position buffer allocation failed"
-msgstr ""
-
-#: src/pv/transfer.c:918
-msgid "write failed"
-msgstr "erro de gravação"
-
-#: src/pv/transfer.c:1159
-msgid "select call failed"
-msgstr "erro na chamada da função select"
-
-#: src/pv/watchpid.c:109 src/pv/watchpid.c:121 src/pv/watchpid.c:130
-#: src/pv/watchpid.c:184 src/pv/watchpid.c:193 src/pv/watchpid.c:204
+#: src/pv/loop.c:809 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
 msgid "fd"
 msgstr ""
 
-#: src/pv/watchpid.c:130 src/pv/watchpid.c:204
+#: src/pv/state.c:42
+msgid "history structure allocation failed"
+msgstr ""
+
+#: src/pv/state.c:741 src/pv/state.c:753
+msgid "file list allocation failed"
+msgstr ""
+
+#: src/pv/state.c:787
+msgid "process list allocation failed"
+msgstr ""
+
+#: src/pv/state.c:795
+msgid "file descriptor list allocation failed"
+msgstr ""
+
+#: src/pv/transfer.c:490
+msgid "read failed"
+msgstr "erro de leitura"
+
+#: src/pv/transfer.c:506
+msgid "warning: read errors detected"
+msgstr "aviso: erros de leitura detectados"
+
+#: src/pv/transfer.c:522
+msgid "file is not seekable"
+msgstr "não pode mover dentro do arquivo"
+
+#: src/pv/transfer.c:599
+msgid "failed to seek past error"
+msgstr "não pode ir além do erro"
+
+#: src/pv/transfer.c:619
+msgid "skipped past read error"
+msgstr "ignorado erro de leitura"
+
+#: 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 "erro de gravação"
+
+#: 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
 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: 2025-07-26 14:50+0100\n"
+"POT-Creation-Date: 2025-10-18 19:34+0100\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:372
+#: src/main/help.c:382
 msgid "FILE"
 msgstr "ФАЙЛ"
 
@@ -220,60 +220,64 @@ 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:363
+msgid "PID[:FD]|=NAME|@LISTFILE"
+msgstr ""
 
-#: src/main/help.c:361
+#: src/main/help.c:364
 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:367
 msgid "PID"
 msgstr "ИДпр"
 
-#: src/main/help.c:365
+#: src/main/help.c:368
 msgid "update settings of process PID"
 msgstr "обновить настройки ИДпр процесса"
 
-#: src/main/help.c:370
+#: src/main/help.c:373
 msgid "save process ID in FILE"
 msgstr "сохранить ИД процесса в ФАЙЛ"
 
-#: src/main/help.c:373
+#: src/main/help.c:376
 msgid "show this help and exit"
 msgstr "показать справку и завершить работу"
 
-#: src/main/help.c:376
+#: src/main/help.c:379
 msgid "show version information and exit"
 msgstr "показать версию программы и завершить работу"
 
-#: src/main/help.c:380
+#: src/main/help.c:383
 msgid "write debug logs to FILE"
 msgstr "вести запись отладочного журнала в ФАЙЛ"
 
-#: src/main/help.c:406
+#: src/main/help.c:409
 #, c-format
 msgid "Usage: %s [OPTION] [FILE]..."
 msgstr "Использование: %s [ОПЦИИ] [ФАЙЛ]..."
 
-#: src/main/help.c:417
+#: src/main/help.c:420
 msgid ""
 "Concatenate FILE(s), or standard input, to standard output, with monitoring."
 msgstr ""
 
-#: src/main/help.c:555
+#: src/main/help.c:558
 msgid "Supported format sequences:"
 msgstr "Поддерживаемые последовательности:"
 
-#: src/main/help.c:569
+#: src/main/help.c:572
 #, c-format
 msgid "Please report any bugs to: %s"
 msgstr "Сообщайте о проблемах на: %s"
@@ -282,91 +286,103 @@ msgstr "Сообщайте о проблемах на: %s"
 msgid "(input)"
 msgstr "(ввод)"
 
-#: src/main/main.c:328
+#: src/main/main.c:334
 msgid "state allocation failed"
 msgstr ""
 
-#: src/main/options.c:146 src/pv/file.c:324
-msgid "failed to stat file"
-msgstr "не удалось получить информацию о файле"
+#: src/main/options.c:370
+msgid "list files may not contain @ lines"
+msgstr ""
 
-#: src/main/options.c:160
-msgid "is a directory"
-msgstr "является каталогом"
-
-#: src/main/options.c:189
-msgid "failed to generate sysfs filename"
-msgstr "не удалось создать имя файла sysfs"
-
-#: src/main/options.c:211
-msgid "failed to read sysfs size file"
-msgstr "не удалось узнать размер файла sysfs"
-
-#: src/main/options.c:231
-msgid "failed to open block device"
-msgstr "не удалось открыть блочное устройство"
-
-#: src/main/options.c:241
-msgid "failed to determine size of block device"
-msgstr "не удалось определить размер блочного устройства"
-
-#: src/main/options.c:347
-msgid "option structure allocation failed"
-msgstr "не удалось выделить память для структуры опций"
-
-#: src/main/options.c:366
-msgid "option structure argv allocation failed"
-msgstr "не удалось выделить память для структуры опций argv"
-
-#: src/main/options.c:419
-msgid "numeric value not understood"
-msgstr "число не распознано"
-
-#: src/main/options.c:437
-msgid "integer argument expected"
-msgstr "ожидалось целое число"
-
-#: src/main/options.c:449
-msgid "numeric argument expected"
-msgstr "ожидалось число"
-
-#: src/main/options.c:460
+#: src/main/options.c:391 src/main/options.c:393 src/main/options.c:804
 msgid "process ID or pid:fd pair expected"
 msgstr "ожидался ИД процесса или пара ИДпр:ДФ"
 
-#: src/main/options.c:467
+#: src/main/options.c:403 src/main/options.c:405 src/main/options.c:811
 msgid "invalid process ID"
 msgstr "неправильный ИД процесса"
 
-#: src/main/options.c:700
+#: src/main/options.c:448 src/pv/file.c:342
+msgid "failed to stat file"
+msgstr "не удалось получить информацию о файле"
+
+#: src/main/options.c:462
+msgid "is a directory"
+msgstr "является каталогом"
+
+#: src/main/options.c:491
+msgid "failed to generate sysfs filename"
+msgstr "не удалось создать имя файла sysfs"
+
+#: src/main/options.c:513
+msgid "failed to read sysfs size file"
+msgstr "не удалось узнать размер файла sysfs"
+
+#: src/main/options.c:533
+msgid "failed to open block device"
+msgstr "не удалось открыть блочное устройство"
+
+#: src/main/options.c:543
+msgid "failed to determine size of block device"
+msgstr "не удалось определить размер блочного устройства"
+
+#: src/main/options.c:651
+msgid "option structure allocation failed"
+msgstr "не удалось выделить память для структуры опций"
+
+#: src/main/options.c:670
+msgid "option structure argv allocation failed"
+msgstr "не удалось выделить память для структуры опций argv"
+
+#: src/main/options.c:722
+msgid "numeric value not understood"
+msgstr "число не распознано"
+
+#: src/main/options.c:740
+msgid "integer argument expected"
+msgstr "ожидалось целое число"
+
+#: src/main/options.c:752
+msgid "numeric argument expected"
+msgstr "ожидалось число"
+
+#: src/main/options.c:764
+msgid "missing filename"
+msgstr ""
+
+#: src/main/options.c:792
+msgid "missing process name"
+msgstr ""
+
+#: src/main/options.c:1048
 #, c-format
 msgid "Try `%s --help' for more information."
 msgstr "Выполните `%s --help' для получения подробностей."
 
-#: src/main/options.c:702
+#: src/main/options.c:1050
 #, c-format
 msgid "Try `%s -h' for more information."
 msgstr "Выполните `%s -h' для получения подробностей."
 
-#: src/main/options.c:733
+#: src/main/options.c:1081
 msgid ""
 "cannot use line mode or transfer modifier options when watching file "
 "descriptors"
 msgstr ""
 
-#: src/main/options.c:742
+#: src/main/options.c:1090
 msgid "cannot use cursor positioning when watching file descriptors"
 msgstr ""
 
-#: src/main/options.c:751
+#: src/main/options.c:1099
 msgid "cannot use remote control when watching file descriptors"
 msgstr "удалённое управление невозможно при отслеживании дескрипторов файлов"
 
-#: src/main/options.c:760
+#: src/main/options.c:1108
 msgid "cannot transfer files when watching file descriptors"
 msgstr "передача файлов невозможна при отслеживании дескрипторов файлов"
 
-#: src/main/options.c:775
+#: src/main/options.c:1133
 msgid "not available on systems without /proc/self/fdinfo"
 msgstr "невозможно на системах без /proc/self/fdinfo"
 
@@ -374,7 +390,7 @@ msgstr "невозможно на системах без /proc/self/fdinfo"
 msgid "message not received"
 msgstr "сообщение не получено"
 
-#: src/main/remote.c:440
+#: src/main/remote.c:444
 msgid "SA_SIGINFO not supported on this system"
 msgstr "Этой системой не поддерживается SA_SIGINFO"
 
@@ -412,150 +428,162 @@ msgstr "попытка блокировки не удалась"
 msgid "failed to open terminal"
 msgstr "не удалось открыть терминал"
 
-#: src/pv/display.c:249
+#: src/pv/display.c:285
 msgid "yzafpnum kMGTPEZY"
 msgstr ""
 
-#: src/pv/display.c:267
+#: src/pv/display.c:303
 msgid "yzafpnum KMGTPEZY"
 msgstr ""
 
-#: src/pv/display.c:989 src/pv/transfer.c:1057
+#: src/pv/display.c:1053 src/pv/loop.c:754 src/pv/transfer.c:1135
 msgid "buffer allocation failed"
 msgstr "не удалось выделить память для буфера"
 
-#: src/pv/file.c:149
+#: src/pv/file.c:153
 msgid "failed to seek to start of output"
 msgstr ""
 
-#: src/pv/file.c:294
+#: src/pv/file.c:303
 msgid "failed to close file"
 msgstr "не удалось закрыть файл"
 
-#: src/pv/file.c:317
+#: src/pv/file.c:335
 msgid "failed to read file"
 msgstr "не удалось прочесть файл"
 
-#: src/pv/file.c:332
+#: src/pv/file.c:350
 msgid "failed to stat output file"
 msgstr "не удалось получить информацию о выходном файле"
 
-#: src/pv/file.c:354
+#: src/pv/file.c:372
 msgid "input file is output file"
 msgstr "пути исходного и выходного файлов одинаковы"
 
-#: src/pv/file.c:412
+#: src/pv/file.c:429
 msgid "(none)"
 msgstr "(нет)"
 
-#: src/pv/file.c:414
+#: src/pv/file.c:431
 msgid "(stdin)"
 msgstr "(стд. ввод)"
 
-#: src/pv/format/averagerate.c:34 src/pv/format/progressbar.c:93
-#: src/pv/format/rate.c:37 src/pv/loop.c:562
+#: src/pv/format/averagerate.c:34 src/pv/format/progressbar.c:92
+#: src/pv/format/rate.c:36 src/pv/loop.c:565
 msgid "b/s"
 msgstr "бит/с"
 
-#: src/pv/format/averagerate.c:38 src/pv/format/progressbar.c:97
-#: src/pv/format/rate.c:41
+#: src/pv/format/averagerate.c:38 src/pv/format/progressbar.c:96
+#: src/pv/format/rate.c:40
 msgid "/s"
 msgstr "/с"
 
-#: src/pv/format/averagerate.c:38 src/pv/format/progressbar.c:97
-#: src/pv/format/rate.c:41 src/pv/loop.c:562
+#: src/pv/format/averagerate.c:38 src/pv/format/progressbar.c:96
+#: src/pv/format/rate.c:40 src/pv/loop.c:565
 msgid "B/s"
 msgstr "байт/с"
 
-#: src/pv/format/bytes.c:37
+#: src/pv/format/bytes.c:35
 msgid "b"
 msgstr "бит"
 
-#: src/pv/format/bytes.c:41 src/pv/transfer.c:594
+#: src/pv/format/bytes.c:39 src/pv/transfer.c:620
 msgid "B"
 msgstr "байт"
 
-#: src/pv/format/eta.c:53 src/pv/format/eta.c:57
+#: src/pv/format/eta.c:52 src/pv/format/eta.c:56
 msgid "ETA"
 msgstr "ОЖИД"
 
-#: src/pv/format/fineta.c:81
+#: src/pv/format/fineta.c:80
 msgid "FIN"
 msgstr "ЗАВЕРШ"
 
-#: src/pv/loop.c:561
+#: src/pv/loop.c:564
 msgid "rate min/avg/max/mdev"
 msgstr "скор. мин/сред/макс/дев"
 
-#: src/pv/loop.c:573
+#: src/pv/loop.c:576
 msgid "rate not measured"
 msgstr "скорость не изменяется"
 
-#: src/pv/loop.c:783 src/pv/loop.c:834 src/pv/loop.c:887 src/pv/watchpid.c:99
-#: src/pv/watchpid.c:109 src/pv/watchpid.c:120 src/pv/watchpid.c:128
-#: src/pv/watchpid.c:165 src/pv/watchpid.c:184 src/pv/watchpid.c:192
-#: src/pv/watchpid.c:202 src/pv/watchpid.c:300 src/pv/watchpid.c:308
-#: src/pv/watchpid.c:385 src/pv/watchpid.c:406
+#: src/pv/loop.c:775 src/pv/loop.c:791 src/pv/loop.c:809 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
 msgid "pid"
 msgstr "ИДпр"
 
-#: src/pv/state.c:40
-msgid "history structure allocation failed"
-msgstr "не удалось выделить память для структуры истории"
-
-#: src/pv/state.c:617 src/pv/state.c:628
-msgid "file list allocation failed"
-msgstr "не удалось выделить память для списка файлов"
-
-#: src/pv/transfer.c:463
-msgid "read failed"
-msgstr "чтение не удалось"
-
-#: src/pv/transfer.c:479
-msgid "warning: read errors detected"
-msgstr "внимание: замечены ошибки чтения"
-
-#: src/pv/transfer.c:495
-msgid "file is not seekable"
-msgstr ""
-
-#: src/pv/transfer.c:573
-msgid "failed to seek past error"
-msgstr ""
-
-#: src/pv/transfer.c:593
-msgid "skipped past read error"
-msgstr ""
-
-#: src/pv/transfer.c:634
-msgid "no transfer buffer allocated"
-msgstr "не выделена память для буфера передачи"
-
-#: src/pv/transfer.c:676
-msgid "failed to set interval timer"
-msgstr "не удалось задать измеритель временного промежутка"
-
-#: src/pv/transfer.c:702
-msgid "failed to clear interval timer"
-msgstr "не удалось очистить измеритель временного промежутка"
-
-#: src/pv/transfer.c:744
-msgid "line position buffer allocation failed"
-msgstr ""
-
-#: src/pv/transfer.c:918
-msgid "write failed"
-msgstr "запись не удалась"
-
-#: src/pv/transfer.c:1159
-msgid "select call failed"
-msgstr "запрос выборки не удался"
-
-#: src/pv/watchpid.c:109 src/pv/watchpid.c:121 src/pv/watchpid.c:130
-#: src/pv/watchpid.c:184 src/pv/watchpid.c:193 src/pv/watchpid.c:204
+#: src/pv/loop.c:809 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
 msgid "fd"
 msgstr "дф"
 
-#: src/pv/watchpid.c:130 src/pv/watchpid.c:204
+#: src/pv/state.c:42
+msgid "history structure allocation failed"
+msgstr "не удалось выделить память для структуры истории"
+
+#: src/pv/state.c:741 src/pv/state.c:753
+msgid "file list allocation failed"
+msgstr "не удалось выделить память для списка файлов"
+
+#: src/pv/state.c:787
+msgid "process list allocation failed"
+msgstr ""
+
+#: src/pv/state.c:795
+msgid "file descriptor list allocation failed"
+msgstr ""
+
+#: src/pv/transfer.c:490
+msgid "read failed"
+msgstr "чтение не удалось"
+
+#: src/pv/transfer.c:506
+msgid "warning: read errors detected"
+msgstr "внимание: замечены ошибки чтения"
+
+#: 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 "не выделена память для буфера передачи"
+
+#: src/pv/transfer.c:751
+msgid "failed to set interval timer"
+msgstr "не удалось задать измеритель временного промежутка"
+
+#: src/pv/transfer.c:777
+msgid "failed to clear interval timer"
+msgstr "не удалось очистить измеритель временного промежутка"
+
+#: src/pv/transfer.c:822
+msgid "line position buffer allocation failed"
+msgstr ""
+
+#: src/pv/transfer.c:996
+msgid "write failed"
+msgstr "запись не удалась"
+
+#: src/pv/transfer.c:1237
+msgid "select call failed"
+msgstr "запрос выборки не удался"
+
+#: src/pv/watchpid.c:129 src/pv/watchpid.c:203
 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

@@ -2,16 +2,16 @@ msgid ""
 msgstr ""
 "Project-Id-Version: pv 1.8.14\n"
 "Report-Msgid-Bugs-To: https://codeberg.org/ivarch/pv/issues\n"
-"POT-Creation-Date: 2025-07-26 14:50+0100\n"
-"PO-Revision-Date: 2024-10-12 23:51+0000\n"
-"Last-Translator: a-j-wood <a-j-wood@users.noreply.translate.codeberg.org>\n"
+"POT-Creation-Date: 2025-10-18 19:34+0100\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"
 "Language: tr\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 5.7.2\n"
+"X-Generator: Weblate 5.13.2\n"
 
 #: src/main/help.c:236
 msgid "show progress bar"
@@ -143,19 +143,19 @@ msgstr "görsel bilgiyi İSİM ile öne ekle"
 
 #: src/main/help.c:311
 msgid "STYLE"
-msgstr ""
+msgstr "BİÇİM"
 
 #: src/main/help.c:312
 msgid "set default bar style to NAME"
-msgstr ""
+msgstr "öntanımlı çubuk biçimini İSİM olarak ayarla"
 
 #: src/main/help.c:314
 msgid "SPEC"
-msgstr ""
+msgstr "BELİRT"
 
 #: src/main/help.c:315
 msgid "also send progress to SPEC"
-msgstr ""
+msgstr "ilerlemeyi BELİRT ögesine de gönder"
 
 #: src/main/help.c:318
 msgid "output transfer statistics at the end"
@@ -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:372
+#: src/main/help.c:382
 msgid "FILE"
 msgstr "DOSYA"
 
@@ -219,61 +219,65 @@ 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:363
+msgid "PID[:FD]|=NAME|@LISTFILE"
+msgstr ""
 
-#: src/main/help.c:361
+#: src/main/help.c:364
 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:367
 msgid "PID"
 msgstr "PID"
 
-#: src/main/help.c:365
+#: src/main/help.c:368
 msgid "update settings of process PID"
 msgstr "süreç PID ayarlarını güncelle"
 
-#: src/main/help.c:370
+#: src/main/help.c:373
 msgid "save process ID in FILE"
 msgstr "FILE'da işlem kimliğini (ID) kaydet"
 
-#: src/main/help.c:373
+#: src/main/help.c:376
 msgid "show this help and exit"
 msgstr "bu yardımı göster ve çık"
 
-#: src/main/help.c:376
+#: src/main/help.c:379
 msgid "show version information and exit"
 msgstr "sürüm bilgilerini göster ve çık"
 
-#: src/main/help.c:380
+#: src/main/help.c:383
 msgid "write debug logs to FILE"
 msgstr "Hata ayıklama kayıtlarını DOSYA'ya yaz"
 
-#: src/main/help.c:406
+#: src/main/help.c:409
 #, c-format
 msgid "Usage: %s [OPTION] [FILE]..."
 msgstr "Kullanım şekli: %s [AYAR] [DOSYA]..."
 
-#: src/main/help.c:417
+#: src/main/help.c:420
 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:558
 msgid "Supported format sequences:"
-msgstr ""
+msgstr "Desteklenen biçim dizileri:"
 
-#: src/main/help.c:569
+#: src/main/help.c:572
 #, c-format
 msgid "Please report any bugs to: %s"
 msgstr "Lütfen hataları şu adrese bildirin: %s"
@@ -282,73 +286,85 @@ msgstr "Lütfen hataları şu adrese bildirin: %s"
 msgid "(input)"
 msgstr "(giriş)"
 
-#: src/main/main.c:328
+#: src/main/main.c:334
 msgid "state allocation failed"
 msgstr "durum tahsisi başarısız oldu"
 
-#: src/main/options.c:146 src/pv/file.c:324
-msgid "failed to stat file"
-msgstr "dosya statüsünde başarısız oldu"
-
-#: src/main/options.c:160
-msgid "is a directory"
-msgstr "bir dizindir"
-
-#: src/main/options.c:189
-msgid "failed to generate sysfs filename"
-msgstr "sysfs dosya adı oluşturulamadı"
-
-#: src/main/options.c:211
-msgid "failed to read sysfs size file"
-msgstr "sysfs boyut dosyası okunamadı"
-
-#: src/main/options.c:231
-msgid "failed to open block device"
-msgstr "blok aygıtı açılamadı"
-
-#: src/main/options.c:241
-msgid "failed to determine size of block device"
-msgstr "blok aygıtının boyutu belirlenemedi"
-
-#: src/main/options.c:347
-msgid "option structure allocation failed"
-msgstr "seçenek yapısı tahsisi başarısız oldu"
-
-#: src/main/options.c:366
-msgid "option structure argv allocation failed"
-msgstr "seçenek yapısı argv tahsisi başarısız oldu"
-
-#: src/main/options.c:419
-msgid "numeric value not understood"
+#: src/main/options.c:370
+msgid "list files may not contain @ lines"
 msgstr ""
 
-#: src/main/options.c:437
-msgid "integer argument expected"
-msgstr "tamsayı bağımsız değişkeni bekleniyor"
-
-#: src/main/options.c:449
-msgid "numeric argument expected"
-msgstr "sayısal bağımsız değişken bekleniyor"
-
-#: src/main/options.c:460
+#: src/main/options.c:391 src/main/options.c:393 src/main/options.c:804
 msgid "process ID or pid:fd pair expected"
 msgstr "süreç kimliği (ID) veya pid:fd çifti bekleniyor"
 
-#: src/main/options.c:467
+#: src/main/options.c:403 src/main/options.c:405 src/main/options.c:811
 msgid "invalid process ID"
 msgstr "geçersiz süreç kimliği (ID)"
 
-#: src/main/options.c:700
+#: src/main/options.c:448 src/pv/file.c:342
+msgid "failed to stat file"
+msgstr "dosya statüsünde başarısız oldu"
+
+#: src/main/options.c:462
+msgid "is a directory"
+msgstr "bir dizindir"
+
+#: src/main/options.c:491
+msgid "failed to generate sysfs filename"
+msgstr "sysfs dosya adı oluşturulamadı"
+
+#: src/main/options.c:513
+msgid "failed to read sysfs size file"
+msgstr "sysfs boyut dosyası okunamadı"
+
+#: src/main/options.c:533
+msgid "failed to open block device"
+msgstr "blok aygıtı açılamadı"
+
+#: src/main/options.c:543
+msgid "failed to determine size of block device"
+msgstr "blok aygıtının boyutu belirlenemedi"
+
+#: src/main/options.c:651
+msgid "option structure allocation failed"
+msgstr "seçenek yapısı tahsisi başarısız oldu"
+
+#: src/main/options.c:670
+msgid "option structure argv allocation failed"
+msgstr "seçenek yapısı argv tahsisi başarısız oldu"
+
+#: src/main/options.c:722
+msgid "numeric value not understood"
+msgstr "sayısal değer anlaşılmadı"
+
+#: src/main/options.c:740
+msgid "integer argument expected"
+msgstr "tamsayı bağımsız değişkeni bekleniyor"
+
+#: src/main/options.c:752
+msgid "numeric argument expected"
+msgstr "sayısal bağımsız değişken bekleniyor"
+
+#: src/main/options.c:764
+msgid "missing filename"
+msgstr ""
+
+#: src/main/options.c:792
+msgid "missing process name"
+msgstr ""
+
+#: src/main/options.c:1048
 #, c-format
 msgid "Try `%s --help' for more information."
 msgstr "Daha fazla bilgi için `%s --help' seçeneğini deneyin."
 
-#: src/main/options.c:702
+#: src/main/options.c:1050
 #, c-format
 msgid "Try `%s -h' for more information."
 msgstr "Daha fazla bilgi için `%s -h' seçeneğini deneyin."
 
-#: src/main/options.c:733
+#: src/main/options.c:1081
 msgid ""
 "cannot use line mode or transfer modifier options when watching file "
 "descriptors"
@@ -356,19 +372,19 @@ msgstr ""
 "dosya tanımlayıcılarını izlerken satır modu veya aktarım değiştirici "
 "seçeneklerini kullanamaz"
 
-#: src/main/options.c:742
+#: src/main/options.c:1090
 msgid "cannot use cursor positioning when watching file descriptors"
 msgstr "dosya tanımlayıcılarını izlerken imleç konumlandırmayı kullanamaz"
 
-#: src/main/options.c:751
+#: src/main/options.c:1099
 msgid "cannot use remote control when watching file descriptors"
 msgstr "dosya tanımlayıcılarını izlerken uzaktan kumandayı kullanamaz"
 
-#: src/main/options.c:760
+#: src/main/options.c:1108
 msgid "cannot transfer files when watching file descriptors"
 msgstr "dosya tanımlayıcıları izlenirken dosya aktarılamıyor"
 
-#: src/main/options.c:775
+#: src/main/options.c:1133
 msgid "not available on systems without /proc/self/fdinfo"
 msgstr "/proc/self/fdinfo olmayan sistemlerde kullanılamaz"
 
@@ -376,7 +392,7 @@ msgstr "/proc/self/fdinfo olmayan sistemlerde kullanılamaz"
 msgid "message not received"
 msgstr "mesaj alınamadı"
 
-#: src/main/remote.c:440
+#: src/main/remote.c:444
 msgid "SA_SIGINFO not supported on this system"
 msgstr "SA_SIGINFO bu sistemde desteklenmiyor"
 
@@ -413,150 +429,162 @@ msgstr "kilit denemesi başarısız oldu"
 msgid "failed to open terminal"
 msgstr "terminal açılamadı"
 
-#: src/pv/display.c:249
+#: src/pv/display.c:285
 msgid "yzafpnum kMGTPEZY"
 msgstr "yzafpnum kMGTPEZY"
 
-#: src/pv/display.c:267
+#: src/pv/display.c:303
 msgid "yzafpnum KMGTPEZY"
 msgstr "yzafpnum KMGTPEZY"
 
-#: src/pv/display.c:989 src/pv/transfer.c:1057
+#: src/pv/display.c:1053 src/pv/loop.c:754 src/pv/transfer.c:1135
 msgid "buffer allocation failed"
 msgstr "arabellek tahsisi başarısız oldu"
 
-#: src/pv/file.c:149
+#: src/pv/file.c:153
 msgid "failed to seek to start of output"
 msgstr "çıktının başlangıcına ulaşılamadı"
 
-#: src/pv/file.c:294
+#: src/pv/file.c:303
 msgid "failed to close file"
 msgstr "dosya kapatılamadı"
 
-#: src/pv/file.c:317
+#: src/pv/file.c:335
 msgid "failed to read file"
 msgstr "dosya okunamadı"
 
-#: src/pv/file.c:332
+#: src/pv/file.c:350
 msgid "failed to stat output file"
 msgstr "çıktı dosyası stat edilemedi"
 
-#: src/pv/file.c:354
+#: src/pv/file.c:372
 msgid "input file is output file"
 msgstr "girdi dosyası çıktı dosyasıdır"
 
-#: src/pv/file.c:412
+#: src/pv/file.c:429
 msgid "(none)"
 msgstr "(yok)"
 
-#: src/pv/file.c:414
+#: src/pv/file.c:431
 msgid "(stdin)"
 msgstr "(stdin)"
 
-#: src/pv/format/averagerate.c:34 src/pv/format/progressbar.c:93
-#: src/pv/format/rate.c:37 src/pv/loop.c:562
+#: src/pv/format/averagerate.c:34 src/pv/format/progressbar.c:92
+#: src/pv/format/rate.c:36 src/pv/loop.c:565
 msgid "b/s"
 msgstr "b/s"
 
-#: src/pv/format/averagerate.c:38 src/pv/format/progressbar.c:97
-#: src/pv/format/rate.c:41
+#: src/pv/format/averagerate.c:38 src/pv/format/progressbar.c:96
+#: src/pv/format/rate.c:40
 msgid "/s"
 msgstr "/s"
 
-#: src/pv/format/averagerate.c:38 src/pv/format/progressbar.c:97
-#: src/pv/format/rate.c:41 src/pv/loop.c:562
+#: src/pv/format/averagerate.c:38 src/pv/format/progressbar.c:96
+#: src/pv/format/rate.c:40 src/pv/loop.c:565
 msgid "B/s"
 msgstr "B/s"
 
-#: src/pv/format/bytes.c:37
+#: src/pv/format/bytes.c:35
 msgid "b"
 msgstr "b"
 
-#: src/pv/format/bytes.c:41 src/pv/transfer.c:594
+#: src/pv/format/bytes.c:39 src/pv/transfer.c:620
 msgid "B"
 msgstr "B"
 
-#: src/pv/format/eta.c:53 src/pv/format/eta.c:57
+#: src/pv/format/eta.c:52 src/pv/format/eta.c:56
 msgid "ETA"
 msgstr "ETA"
 
-#: src/pv/format/fineta.c:81
+#: src/pv/format/fineta.c:80
 msgid "FIN"
 msgstr "FIN"
 
-#: src/pv/loop.c:561
+#: src/pv/loop.c:564
 msgid "rate min/avg/max/mdev"
 msgstr "oran min/ortalama/maks/standart sapma"
 
-#: src/pv/loop.c:573
+#: src/pv/loop.c:576
 msgid "rate not measured"
 msgstr "oran ölçülmedi"
 
-#: src/pv/loop.c:783 src/pv/loop.c:834 src/pv/loop.c:887 src/pv/watchpid.c:99
-#: src/pv/watchpid.c:109 src/pv/watchpid.c:120 src/pv/watchpid.c:128
-#: src/pv/watchpid.c:165 src/pv/watchpid.c:184 src/pv/watchpid.c:192
-#: src/pv/watchpid.c:202 src/pv/watchpid.c:300 src/pv/watchpid.c:308
-#: src/pv/watchpid.c:385 src/pv/watchpid.c:406
+#: src/pv/loop.c:775 src/pv/loop.c:791 src/pv/loop.c:809 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
 msgid "pid"
 msgstr "pid"
 
-#: src/pv/state.c:40
-msgid "history structure allocation failed"
-msgstr "geçmiş yapısı tahsisi başarısız oldu"
-
-#: src/pv/state.c:617 src/pv/state.c:628
-msgid "file list allocation failed"
-msgstr "dosya listesi tahsisi başarısız oldu"
-
-#: src/pv/transfer.c:463
-msgid "read failed"
-msgstr "okuma başarısız"
-
-#: src/pv/transfer.c:479
-msgid "warning: read errors detected"
-msgstr "uyarı: okuma hataları tespit edildi"
-
-#: src/pv/transfer.c:495
-msgid "file is not seekable"
-msgstr "dosya aranabilir değil"
-
-#: src/pv/transfer.c:573
-msgid "failed to seek past error"
-msgstr "geçmiş hatayı aramakta başarısız oldu"
-
-#: src/pv/transfer.c:593
-msgid "skipped past read error"
-msgstr "geçmiş okuma hatası atlandı"
-
-#: src/pv/transfer.c:634
-msgid "no transfer buffer allocated"
-msgstr "aktarım arabelleği ayrılmamış"
-
-#: src/pv/transfer.c:676
-msgid "failed to set interval timer"
-msgstr "aralık zamanlayıcısı ayarlanamadı"
-
-#: src/pv/transfer.c:702
-msgid "failed to clear interval timer"
-msgstr "aralık zamanlayıcısı temizlenemedi"
-
-#: src/pv/transfer.c:744
-msgid "line position buffer allocation failed"
-msgstr "satır konumu arabellek tahsisi başarısız oldu"
-
-#: src/pv/transfer.c:918
-msgid "write failed"
-msgstr "yazma başarısız"
-
-#: src/pv/transfer.c:1159
-msgid "select call failed"
-msgstr "seçme çağrısı başarısız oldu"
-
-#: src/pv/watchpid.c:109 src/pv/watchpid.c:121 src/pv/watchpid.c:130
-#: src/pv/watchpid.c:184 src/pv/watchpid.c:193 src/pv/watchpid.c:204
+#: src/pv/loop.c:809 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
 msgid "fd"
 msgstr "fd"
 
-#: src/pv/watchpid.c:130 src/pv/watchpid.c:204
+#: src/pv/state.c:42
+msgid "history structure allocation failed"
+msgstr "geçmiş yapısı tahsisi başarısız oldu"
+
+#: src/pv/state.c:741 src/pv/state.c:753
+msgid "file list allocation failed"
+msgstr "dosya listesi tahsisi başarısız oldu"
+
+#: src/pv/state.c:787
+msgid "process list allocation failed"
+msgstr "işlem listesi tahsisi başarısız oldu"
+
+#: src/pv/state.c:795
+msgid "file descriptor list allocation failed"
+msgstr "dosya tanımlayıcı listesi tahsisi başarısız oldu"
+
+#: src/pv/transfer.c:490
+msgid "read failed"
+msgstr "okuma başarısız"
+
+#: src/pv/transfer.c:506
+msgid "warning: read errors detected"
+msgstr "uyarı: okuma hataları tespit edildi"
+
+#: src/pv/transfer.c:522
+msgid "file is not seekable"
+msgstr "dosya aranabilir değil"
+
+#: src/pv/transfer.c:599
+msgid "failed to seek past error"
+msgstr "geçmiş hatayı aramakta başarısız oldu"
+
+#: src/pv/transfer.c:619
+msgid "skipped past read error"
+msgstr "geçmiş okuma hatası atlandı"
+
+#: src/pv/transfer.c:663
+msgid "no transfer buffer allocated"
+msgstr "aktarım arabelleği ayrılmamış"
+
+#: src/pv/transfer.c:751
+msgid "failed to set interval timer"
+msgstr "aralık zamanlayıcısı ayarlanamadı"
+
+#: src/pv/transfer.c:777
+msgid "failed to clear interval timer"
+msgstr "aralık zamanlayıcısı temizlenemedi"
+
+#: src/pv/transfer.c:822
+msgid "line position buffer allocation failed"
+msgstr "satır konumu arabellek tahsisi başarısız oldu"
+
+#: src/pv/transfer.c:996
+msgid "write failed"
+msgstr "yazma başarısız"
+
+#: src/pv/transfer.c:1237
+msgid "select call failed"
+msgstr "seçme çağrısı başarısız oldu"
+
+#: src/pv/watchpid.c:129 src/pv/watchpid.c:203
 msgid "not a regular file or block device"
 msgstr "normal bir dosya veya blok aygıtı değil"
+
+#~ msgid "PID[:FD]"
+#~ msgstr "PID[:FD]"

src/include/options.h

@@ -23,6 +23,16 @@ extern "C" {
 struct opts_s;
 typedef struct opts_s *opts_t;
 
+/*
+ * Overall program actions to select.
+ */
+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 */
+} pvaction_t;
+
 /*
  * Structure describing run-time options.
  *
@@ -39,6 +49,8 @@ struct opts_s {
 	/*@keep@*/ /*@null@*/ char *pidfile; /* PID file, if any */
 	/*@keep@*/ /*@null@*/ char *store_and_forward_file; /* store and forward file, if any */
 	/*@keep@*/ /*@null@*/ char *extra_display; /* extra display specifier, if any */
+	/*@keep@*/ /*@null@*/ pid_t *watchfd_pid;  /* array of processes to watch fds of */
+	/*@keep@*/ /*@null@*/ int *watchfd_fd;  /* array of fds to watch in each one (0=all) */
 	/*@keep@*/ /*@null@*/ const char **argv;   /* array of non-option arguments */
 	size_t lastwritten;            /* show N bytes last written */
 	off_t rate_limit;              /* rate limit, in bytes per second */
@@ -47,14 +59,14 @@ struct opts_s {
 	off_t error_skip_block;        /* skip block size, 0 for adaptive */
 	pid_t remote;                  /* PID of pv to update settings of */
 	unsigned int skip_errors;      /* skip read errors counter */
-	pid_t watch_pid;	       /* process to watch fds of */
-	int watch_fd;		       /* fd to watch */
 	unsigned int average_rate_window; /* time window in seconds for average rate calculations */
 	unsigned int width;            /* screen width */
 	unsigned int height;           /* screen height */
 	unsigned int argc;             /* number of non-option arguments */
 	unsigned int argv_length;      /* allocated array size */
-	bool do_nothing;               /* exit-without-doing-anything flag */
+	unsigned int watchfd_count;	       /* number of watchfd items */
+	unsigned int watchfd_length;	       /* allocated array size */
+	pvaction_t action;	       /* the program action to perform */
 	bool progress;                 /* progress bar flag */
 	bool timer;                    /* timer flag */
 	bool eta;                      /* ETA flag */
@@ -77,6 +89,7 @@ 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

@@ -60,7 +60,7 @@ extern "C" {
 /*
  * Structure for data shared between multiple "pv -c" instances.
  */
-struct pvcursorstate_s {
+struct pvipccursorstate_s {
 	int y_topmost;		/* terminal row of topmost "pv" instance */
 	bool tty_tostop_added;	/* whether any instance had to set TOSTOP on the terminal */
 };
@@ -131,6 +131,8 @@ typedef uint16_t pvdisplay_bytecount_t;
 typedef uint16_t pvdisplay_width_t;
 #define PVDISPLAY_WIDTH_MAX (65535)	/* UINT16_MAX */
 
+/* String pointer, that is the only pointer to this resource, that can be null. */
+typedef /*@only@*/ /*@null@*/ char * nullable_string_t;
 
 /*
  * Structure for holding PV internal state. Opaque outside the PV library.
@@ -141,25 +143,37 @@ struct pvstate_s {
 	/******************
 	 * Program status *
 	 ******************/
-	struct {
-		/*@only@*/ char *program_name;	 /* program name for error reporting */
+	struct pvprogramstatus_s {
 		char cwd[PV_SIZEOF_CWD];	 /* current working directory for relative path */
 		int current_input_file;		 /* index of current file being read */
 		int exit_status; 		 /* exit status to give (0=OK) */
+		bool terminal_supports_utf8;	 /* whether the terminal supports UTF-8 */
+		bool terminal_supports_colour;	 /* whether the terminal supports colour */
+		bool checked_colour_support;	 /* whether we have checked colour support yet */
 	} status;
 
 	/***************
 	 * Input files *
 	 ***************/
-	struct {
-		/*@only@*/ /*@null@*/ char **filename; /* input filenames */
+	struct pvinputfiles_s {
+		/*@only@*/ /*@null@*/ nullable_string_t *filename; /* input filenames */
 		unsigned int file_count;	 /* number of input files */
 	} files;
 
+	/*********************************
+	 * 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) */
+		unsigned int count;	/* number of items in these arrays */
+		bool multiple_pids;	/* true if more than one distinct PID */
+	} watchfd;
+
 	/*******************
 	 * Program control *
 	 *******************/
-	struct {
+	struct pvcontrol_s {
 		char default_format[PV_SIZEOF_DEFAULT_FORMAT];	 /* default format string */
 		double interval;                 /* interval between updates */
 		double delay_start;              /* delay before first display */
@@ -172,9 +186,7 @@ struct pvstate_s {
 		off_t rate_limit;                /* rate limit, in bytes per second */
 		size_t target_buffer_size;       /* buffer size (0=default) */
 		off_t size;                      /* total size of data */
-		pid_t watch_pid;		 /* process to watch fds of */
 		unsigned int skip_errors;        /* skip read errors counter */
-		int watch_fd;			 /* fd to watch */
 		int output_fd;                   /* fd to write output to */
 		unsigned int average_rate_window; /* time window in seconds for average rate calculations */
 		unsigned int history_interval;	 /* seconds between each average rate calc history entry */
@@ -191,16 +203,14 @@ 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 can_display_utf8;		 /* whether UTF-8 output is permitted */
-		bool can_display_colour;	 /* whether the terminal supports colour */
-		bool checked_colour_support;	 /* whether we have checked colour support yet */
 		bool width_set_manually;	 /* width was set manually, not detected */
 		bool height_set_manually;	 /* height was set manually, not detected */
 	} control;
@@ -208,7 +218,7 @@ struct pvstate_s {
 	/*******************
 	 * Signal handling *
 	 *******************/
-	struct {
+	struct pvsignal_s {
 		/* old signal handlers to restore in pv_sig_fini(). */
 		struct sigaction old_sigpipe;
 		struct sigaction old_sigttou;
@@ -233,7 +243,7 @@ struct pvstate_s {
 	/*******************
 	 * Transient flags *
 	 *******************/
-	struct {
+	struct pvtransientflags_s {
 		volatile sig_atomic_t reparse_display;	 /* whether to re-check format string */
 		volatile sig_atomic_t terminal_resized;	 /* whether we need to get term size again */
 		volatile sig_atomic_t trigger_exit;	 /* whether we need to abort right now */
@@ -241,7 +251,7 @@ struct pvstate_s {
 		volatile sig_atomic_t suspend_stderr;	 /* whether writing to stderr is suspended */
 		volatile sig_atomic_t skip_next_sigcont; /* whether to ignore the next SIGCONT */
 		volatile sig_atomic_t pipe_closed;	 /* whether the output pipe was closed */
-	} flag;
+	} flags;
 
 	/*****************
 	 * Display state *
@@ -295,7 +305,7 @@ struct pvstate_s {
 		bool colour_permitted;		 /* whether colour is permitted for this display */
 		bool sgr_code_active;		 /* set while SGR code is active in a display line */
 		bool final_update;		 /* set internally on the final update */
-		bool display_visible;		 /* set once anything written to terminal */
+		bool output_produced;		 /* set once anything written to terminal */
 
 	} display;
 
@@ -305,7 +315,7 @@ struct pvstate_s {
 	/************************************
 	 * Calculated state of the transfer *
 	 ************************************/
-	struct {
+	struct pvtransfercalc_s {
 		long double transfer_rate;	 /* calculated transfer rate */
 		long double average_rate;	 /* calculated average transfer rate */
 
@@ -337,10 +347,10 @@ struct pvstate_s {
 	/********************
 	 * Cursor/IPC state *
 	 ********************/
-	struct {
+	struct pvcursorstate_s {
 		char lock_file[PV_SIZEOF_CRS_LOCK_FILE];
 #ifdef HAVE_IPC
-		/*@keep@*/ /*@null@*/ struct pvcursorstate_s *shared; /* data shared between instances */
+		/*@keep@*/ /*@null@*/ struct pvipccursorstate_s *shared; /* data shared between instances */
 		int shmid;		 /* ID of our shared memory segment */
 		int pvcount;		 /* number of `pv' processes in total */
 		int pvmax;		 /* highest number of `pv's seen */
@@ -353,6 +363,7 @@ struct pvstate_s {
 #ifdef HAVE_IPC
 		bool noipc;		 /* set if we can't use IPC */
 #endif				/* HAVE_IPC */
+		bool disable;		 /* set if cursor positioning can't be used */
 	} cursor;
 
 	/*******************
@@ -373,7 +384,7 @@ struct pvstate_s {
 	 * is the offset in the buffer that we've written data up to.  It
 	 * will always be less than or equal to read_position.
 	 */
-	struct {
+	struct pvtransferstate_s {
 		long double elapsed_seconds;	 /* how long we have been transferring data for */
 		/*@only@*/ /*@null@*/ char *transfer_buffer;	 /* data transfer buffer */
 		size_t buffer_size;		 /* size of buffer */
@@ -385,6 +396,7 @@ struct pvstate_s {
 
 		size_t written_but_not_consumed; /* bytes in the output pipe, unread */
 
+		off_t total_bytes_read;		 /* total bytes read */
 		off_t total_written;		 /* total bytes or lines written */
 		off_t transferred;		 /* amount transferred (written - unconsumed) */
 
@@ -426,19 +438,47 @@ struct pvstate_s {
 		bool splice_used;
 #endif
 		bool read_error_warning_shown;
+		bool output_not_seekable;	/* set if lseek() fails on output */
 	} transfer;
 };
 
+typedef struct pvprogramstatus_s *pvprogramstatus_t;
+typedef struct pvinputfiles_s *pvinputfiles_t;
+typedef struct pvcontrol_s *pvcontrol_t;
+typedef struct pvsignal_s *pvsignal_t;
+typedef struct pvtransientflags_s *pvtransientflags_t;
 typedef struct pvdisplay_s *pvdisplay_t;
 typedef struct pvdisplay_segment_s *pvdisplay_segment_t;
+typedef struct pvtransfercalc_s *pvtransfercalc_t;
+typedef struct pvcursorstate_s *pvcursorstate_t;
+typedef struct pvtransferstate_s *pvtransferstate_t;
+
+/*
+ * Read-only counterparts to the above structure pointers, to be used in
+ * function declarations where the function definitely shouldn't be altering
+ * the contents of the structure.
+ */
+typedef const struct pvprogramstatus_s * readonly_pvprogramstatus_t;
+typedef const struct pvinputfiles_s * readonly_pvinputfiles_t;
+typedef const struct pvcontrol_s * readonly_pvcontrol_t;
+typedef const struct pvsignal_s * readonly_pvsignal_t;
+typedef const struct pvtransientflags_s * readonly_pvtransientflags_t;
+typedef const struct pvdisplay_s * readonly_pvdisplay_t;
+typedef const struct pvdisplay_segment_s * readonly_pvdisplay_segment_t;
+typedef const struct pvtransfercalc_s * readonly_pvtransfercalc_t;
+typedef const struct pvcursorstate_s * readonly_pvcursorstate_t;
+typedef const struct pvtransferstate_s * readonly_pvtransferstate_t;
 
 /*
  * Structure containing the parameters used by formatters.
  */
 struct pvformatter_args_s {
-	/*@dependent@*/ pvstate_t state;		/* overall state */
 	/*@dependent@*/ pvdisplay_t display;		/* the display being updated */
 	/*@dependent@*/ pvdisplay_segment_t segment;	/* the segment of the display */
+	/*@dependent@*/ readonly_pvprogramstatus_t status;	/* program status */
+	/*@dependent@*/ readonly_pvcontrol_t control;		/* control settings */
+	/*@dependent@*/ readonly_pvtransferstate_t transfer;	/* transfer state */
+	/*@dependent@*/ readonly_pvtransfercalc_t calc;		/* calculated transfer state */
 	/*@dependent@*/ char *buffer;			/* buffer to write formatted segments into */
 	pvdisplay_bytecount_t buffer_size;		/* size of the buffer */
 	pvdisplay_bytecount_t offset;			/* current write position in the buffer */
@@ -460,29 +500,39 @@ struct pvdisplay_component_s {
 };
 
 
+/*
+ * 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 */
-	char display_name[PV_SIZEOF_DISPLAY_NAME]; /* name to show on progress bar */
+	/*@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 */
-	/*@null@*/ pvstate_t state;	 /* state object for flags and display */
-	pid_t watch_pid;		 /* PID to watch */
-	int watch_fd;			 /* fd to watch, -1 = not displayed */
+	struct timespec end_time;	 /* time the fd was marked as closed */
+	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 */
 };
 typedef struct pvwatchfd_s *pvwatchfd_t;
 
-void pv_error(pvstate_t, char *, ...);
+void pv_error(char *, ...);
 
 int pv_main_loop(pvstate_t);
-void pv_calculate_transfer_rate(pvstate_t, bool);
+void pv_calculate_transfer_rate(pvtransfercalc_t, readonly_pvtransferstate_t, readonly_pvcontrol_t, readonly_pvdisplay_t, bool);
 
 long pv_bound_long(long, long, long);
 long pv_seconds_remaining(const off_t, const off_t, const long double);
@@ -534,20 +584,36 @@ pvdisplay_bytecount_t pv_formatter_previous_line(pvformatter_args_t);
 pvdisplay_bytecount_t pv_formatter_name(pvformatter_args_t);
 pvdisplay_bytecount_t pv_formatter_sgr(pvformatter_args_t);
 
-bool pv_format(pvstate_t, /*@null@*/ const char *, pvdisplay_t, bool, bool);
-void pv_display(pvstate_t, bool);
+bool pv_format (pvprogramstatus_t, readonly_pvcontrol_t,
+		readonly_pvtransferstate_t, readonly_pvtransfercalc_t,
+		/*@null@ */ const char *, pvdisplay_t, bool, bool);
+void pv_display (pvprogramstatus_t, readonly_pvcontrol_t, pvtransientflags_t,
+		 readonly_pvtransferstate_t, pvtransfercalc_t,
+		 pvcursorstate_t, pvdisplay_t, /*@null@ */ pvdisplay_t, bool);
+
 ssize_t pv_transfer(pvstate_t, int, bool *, bool *, off_t, long *);
 int pv_next_file(pvstate_t, unsigned int, int);
 /*@keep@*/ const char *pv_current_file_name(pvstate_t);
 
-void pv_write_retry(int, const char *, size_t);
-void pv_tty_write(pvstate_t, const char *, size_t);
+unsigned int pv_update_calc_average_rate_window(pvtransfercalc_t, unsigned int);
+void pv_reset_calc(pvtransfercalc_t);
+void pv_reset_transfer(pvtransferstate_t);
+void pv_reset_flags(pvtransientflags_t);
+void pv_reset_display(pvdisplay_t);
+void pv_reset_watchfd(pvwatchfd_t);
+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_crs_fini(pvstate_t);
-void pv_crs_init(pvstate_t);
-void pv_crs_update(pvstate_t, const char *);
+void pv_write_retry(int, const char *, size_t);
+void pv_tty_write(readonly_pvtransientflags_t, const char *, size_t);
+
+void pv_crs_fini(pvcursorstate_t, readonly_pvcontrol_t, pvtransientflags_t);
+void pv_crs_init(pvcursorstate_t, readonly_pvcontrol_t, pvtransientflags_t);
+void pv_crs_update(pvcursorstate_t, readonly_pvcontrol_t, pvtransientflags_t, const char *);
 #ifdef HAVE_IPC
-void pv_crs_needreinit(pvstate_t);
+void pv_crs_needreinit(pvcursorstate_t);
 #endif
 
 void pv_sig_allowpause(void);
@@ -555,14 +621,14 @@ void pv_sig_checkbg(void);
 void pv_sig_nopause(void);
 
 void pv_remote_init(pvstate_t);
-void pv_remote_check(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);
 off_t pv_watchfd_position(pvwatchfd_t);
-int pv_watchpid_scanfds(pvstate_t, pid_t, int *, pvwatchfd_t *, int *);
+int pv_watchpid_scanfds(pvstate_t, pid_t, int, int *, pvwatchfd_t *);
 void pv_watchpid_setname(pvstate_t, pvwatchfd_t);
 
 #ifdef __cplusplus

src/include/pv.h

@@ -175,10 +175,15 @@ void pv_nanosleep(long long);
  * Main PV functions.
  */
 
+/*
+ * Set the prefix (program name) for any PV error messages.
+ */
+extern void pv_set_error_prefix(/*@unique@ */ const char *);
+
 /*
  * Create a new state structure, and return it, or 0 (NULL) on error.
  */
-extern /*@null@*/ /*@only@*/ pvstate_t pv_state_alloc(const char *);
+extern /*@null@*/ /*@only@*/ pvstate_t pv_state_alloc(void);
 
 /*
  * Clear the calculated parts of a state structure.
@@ -216,6 +221,7 @@ 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);
@@ -228,13 +234,12 @@ extern void pv_state_name_set(pvstate_t, /*@null@*/ const char *);
 extern void pv_state_default_bar_style_set(pvstate_t, /*@null@ */ const char *);
 extern void pv_state_format_string_set(pvstate_t, /*@null@*/ const char *);
 extern void pv_state_extra_display_set(pvstate_t, /*@null@*/ const char *);
-extern void pv_state_watch_pid_set(pvstate_t, pid_t);
-extern void pv_state_watch_fd_set(pvstate_t, int);
 extern void pv_state_output_set(pvstate_t, int, const char *);
 extern void pv_state_average_rate_window_set(pvstate_t, unsigned int);
-extern void pv_state_set_can_display_utf8(pvstate_t, bool);
+extern void pv_state_set_terminal_supports_utf8(pvstate_t, bool);
 
 extern void pv_state_inputfiles(pvstate_t, unsigned int, const char **);
+extern void pv_state_watchfds(pvstate_t, unsigned int, const pid_t *, const int *);
 
 /*
  * Work out whether we are in the foreground.
@@ -269,15 +274,10 @@ extern bool pv_sigusr2_received(pvstate_t, pid_t *);
 extern int pv_main_loop(pvstate_t);
 
 /*
- * Watch the selected file descriptor of the selected process.
+ * Watch the selected file descriptors of the selected processes.
  */
 extern int pv_watchfd_loop(pvstate_t);
 
-/*
- * Watch the selected process.
- */
-extern int pv_watchpid_loop(pvstate_t);
-
 /*
  * Shut down signal handlers after running the main loop.
  */

src/main/help.c

@@ -351,13 +351,16 @@ 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]"),
+		{ "-d", "--watchfd", N_("PID[:FD]|=NAME|@LISTFILE"),
 		 N_("watch file FD opened by process PID"),
 		 { 0, 0, 0, 0} },
 #ifdef PV_REMOTE_CONTROL

src/main/main.c

@@ -281,7 +281,7 @@ int main(int argc, char **argv)
 	/*@only@ */ pvstate_t state = NULL;
 	int retcode = 0;
 	bool can_have_eta = true;
-	bool can_display_utf8 = false;
+	bool terminal_supports_utf8 = false;
 
 #if ! HAVE_SETPROCTITLE
 	initproctitle(argc, argv);
@@ -295,7 +295,7 @@ int main(int argc, char **argv)
 #ifdef HAVE_LANGINFO_H
 	/*@-mustfreefresh@ *//* splint thinks nl_langinfo() leaks memory */
 	if (0 == strcmp(nl_langinfo(CODESET), "UTF-8"))
-		can_display_utf8 = true;
+		terminal_supports_utf8 = true;
 	/*@+mustfreefresh@ */
 #endif
 #endif
@@ -308,16 +308,22 @@ int main(int argc, char **argv)
 	}
 
 	/* Early exit if necessary, such as with "-h". */
-	if (opts->do_nothing) {
+	if (PV_ACTION_NOTHING == opts->action) {
 		debug("%s", "nothing to do - exiting with status 0");
 		opts_free(opts);
 		return 0;
 	}
 
+	/* Set the error message prefix. */
+	/*@-keeptrans@ */
+	pv_set_error_prefix(opts->program_name);
+	/* splint - this function doesn't add an alias or release it. */
+	/*@+keeptrans@ */
+
 	/*
 	 * Allocate our internal state buffer.
 	 */
-	state = pv_state_alloc(opts->program_name);
+	state = pv_state_alloc();
 	if (NULL == state) {
 		/*@-mustfreefresh@ */
 		/*
@@ -381,6 +387,13 @@ int main(int argc, char **argv)
 		pv_state_inputfiles(state, opts->argc, (const char **) (opts->argv));
 	}
 
+	/*
+	 * Put the list of watchfd items into the PV internal state.
+	 */
+	if ((opts->watchfd_count > 0) && (NULL != opts->watchfd_pid) && (NULL != opts->watchfd_fd)) {
+		pv_state_watchfds(state, opts->watchfd_count, opts->watchfd_pid, opts->watchfd_fd);
+	}
+
 	/*
 	 * If stderr is not a terminal and we're neither forcing output nor
 	 * outputting numerically, we will have nothing to display at all.
@@ -435,7 +448,12 @@ 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);
@@ -452,7 +470,7 @@ int main(int argc, char **argv)
 	pv_state_stop_at_size_set(state, opts->stop_at_size);
 
 	/* Total size calculation, in normal transfer mode. */
-	if (0 == opts->watch_pid) {
+	if (PV_ACTION_TRANSFER == opts->action) {
 		/*
 		 * If no size was given, try to calculate the total size.
 		 */
@@ -505,37 +523,38 @@ int main(int argc, char **argv)
 	pv_state_default_bar_style_set(state, opts->default_bar_style);
 	pv_state_format_string_set(state, opts->format);
 	pv_state_extra_display_set(state, opts->extra_display);
-	pv_state_watch_pid_set(state, opts->watch_pid);
-	pv_state_watch_fd_set(state, opts->watch_fd);
 	pv_state_average_rate_window_set(state, opts->average_rate_window);
 
 	pv_state_set_format(state, opts->progress, opts->timer, can_have_eta ? opts->eta : false,
 			    can_have_eta ? opts->fineta : false, opts->rate, opts->average_rate,
 			    opts->bytes, opts->bufpercent, opts->lastwritten, opts->name);
 
-	debug("%s: %s", "can_display_utf8", can_display_utf8 ? "true" : "false");
-	pv_state_set_can_display_utf8(state, can_display_utf8);
+	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. */
-	if (0 == opts->watch_pid && NULL == opts->store_and_forward_file) {
+	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();
-	} else if (0 == opts->watch_pid && NULL != opts->store_and_forward_file) {
+		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();
-	} else if (0 != opts->watch_pid && -1 == opts->watch_fd) {
-		/* "Watch all file descriptors of another process" mode. */
-		retcode = pv_watchpid_loop(state);
-	} else if (0 != opts->watch_pid && -1 != opts->watch_fd) {
-		/* "Watch a specific file descriptor of another process" mode. */
+		break;
+	case PV_ACTION_WATCHFD:
+		/* "Watch file descriptor(s) of another process" mode. */
 		retcode = pv_watchfd_loop(state);
+		break;
 	}
 
 	/* Clear up the PID file, if one was written. */

src/main/options.c

@@ -27,6 +27,7 @@
 #endif
 #include <fcntl.h>
 #include <unistd.h>
+#include <sys/wait.h>
 #ifdef HAVE_GETOPT_H
 #include <getopt.h>
 #endif
@@ -34,6 +35,14 @@
 
 void display_help(void);
 void display_version(void);
+static bool opts_watchfd_parse(opts_t, const char *, /*@null@ */ const char *, unsigned int);
+
+
+/*
+ * splint note about mustfreefresh: the gettext calls made by _() cause
+ * memory leak warnings, but in these cases it's unavoidable, and mitigated
+ * by the fact we only translate each string once.
+ */
 
 
 /*
@@ -63,6 +72,10 @@ void opts_free( /*@only@ */ opts_t opts)
 		free(opts->store_and_forward_file);
 	if (NULL != opts->extra_display)
 		free(opts->extra_display);
+	if (NULL != opts->watchfd_pid)
+		free(opts->watchfd_pid);
+	if (NULL != opts->watchfd_fd)
+		free(opts->watchfd_fd);
 	if (NULL != opts->argv)
 		free(opts->argv);
 	/*@+keeptrans@ */
@@ -104,6 +117,300 @@ bool opts_add_file(opts_t opts, const char *filename)
 	return true;
 }
 
+/*
+ * Add a process ID and file descriptor to the list of items to watch with
+ * --watchfd, returning false on error.
+ */
+static bool opts_watchfd_add_item(opts_t opts, pid_t pid, int fd)
+{
+	/*@-branchstate@ */
+	if ((opts->watchfd_count >= opts->watchfd_length) || (NULL == opts->watchfd_pid)) {
+		opts->watchfd_length = opts->watchfd_count + 10;
+		/*@-keeptrans@ */
+		opts->watchfd_pid = realloc(opts->watchfd_pid, opts->watchfd_length * sizeof(pid_t));
+		opts->watchfd_fd = realloc(opts->watchfd_fd, opts->watchfd_length * sizeof(int));
+		/*@+keeptrans@ */
+		if ((NULL == opts->watchfd_pid) || (NULL == opts->watchfd_fd)) {
+			fprintf(stderr, "%s: %s\n", opts->program_name, strerror(errno));
+			opts->watchfd_length = 0;
+			opts->watchfd_count = 0;
+			return false;
+		}
+	}
+	/*@+branchstate@ */
+
+	/*
+	 * splint notes: we turned off "branchstate" and "keeptrans" above
+	 * because of the same reason as in opts_add_file().
+	 */
+
+	opts->watchfd_pid[opts->watchfd_count] = pid;
+	opts->watchfd_fd[opts->watchfd_count] = fd;
+	opts->watchfd_count++;
+
+	return true;
+}
+
+
+/*
+ * Look for processes with the given name, and add all of them to the list
+ * of watched PIDs.  Returns false on error.
+ */
+static bool opts_watchfd_processname(opts_t opts, const char *process_name)
+{
+	int fds[2];
+	pid_t pid;
+	FILE *fptr;
+	char buffer[1024];		 /* flawfinder: ignore */
+	pid_t waited_pid;
+	int pid_status;
+	bool ok;
+
+	/*
+	 * flawfinder: buffer is zeroed before each use, and fgets() is
+	 * passed one less than its size so the string functions in the loop
+	 * always find a null byte at the end.
+	 */
+
+	/* Pipe for communicating with pgrep. */
+	if (pipe(fds) < 0) {
+		fprintf(stderr, "%s: %s\n", opts->program_name, strerror(errno));
+		return false;
+	}
+
+	/* Subprocess in which to run pgrep. */
+	pid = (pid_t) fork();
+	if (pid < 0) {
+		fprintf(stderr, "%s: %s\n", opts->program_name, strerror(errno));
+		(void) close(fds[0]);
+		(void) close(fds[1]);
+		return false;
+	} else if (0 == pid) {
+		int nullfd;
+
+		/* Child process - close stdin, set up stdout, run pgrep. */
+
+		/* Replace stdin with /dev/null. */
+		nullfd = open("/dev/null", O_RDONLY);	/* flawfinder: ignore */
+		/* flawfinder: /dev/null is trusted. */
+		if (nullfd < 0) {
+			fprintf(stderr, "%s: %s: %s\n", opts->program_name, "/dev/null", strerror(errno));
+			exit(EXIT_FAILURE);
+		}
+		if (dup2(nullfd, STDIN_FILENO) < 0) {
+			perror("dup2");
+			exit(EXIT_FAILURE);
+		}
+		(void) close(nullfd);
+
+		/* Replace stdout with the write end of the pipe. */
+		if (dup2(fds[1], STDOUT_FILENO) < 0) {
+			perror("dup2");
+			exit(EXIT_FAILURE);
+		}
+		(void) close(fds[1]);
+
+		/* Close the read end of the pipe. */
+		(void) close(fds[0]);
+
+		/* Run pgrep. */
+		if (execlp("pgrep", "pgrep", process_name, NULL) < 0) {	/* flawfinder: ignore */
+			perror("pgrep");
+		}
+		/*
+		 * flawfinder: deliberately calling pgrep as there isn't a
+		 * portable library to use instead.
+		 */
+		exit(EXIT_FAILURE);
+	}
+
+	/* Close the write end of the pipe. */
+	(void) close(fds[1]);
+
+	/* Open a file stream on the read end of the pipe. */
+	fptr = fdopen(fds[0], "r");
+	if (NULL == fptr) {
+		perror("fdopen");
+		(void) close(fds[0]);
+		return false;
+	}
+
+	/* Read the lines of output from the child process. */
+
+	ok = true;
+	memset(buffer, 0, sizeof(buffer));
+	while ((0 == feof(fptr)) && (NULL != fgets(buffer, (int) (sizeof(buffer) - 1), fptr))) {
+		unsigned int watch_pid;
+
+		/* Skip all lines if we've hit any errors. */
+		if (!ok) {
+			memset(buffer, 0, sizeof(buffer));
+			continue;
+		}
+
+		/* Skip lines without valid PID. */
+		watch_pid = 0;
+		if (sscanf(buffer, "%u", &watch_pid) < 1)
+			continue;
+		if (watch_pid < 1)
+			continue;
+
+		if (!opts_watchfd_parse(opts, buffer, NULL, 0))
+			ok = false;
+
+		memset(buffer, 0, sizeof(buffer));
+	}
+
+
+	/* Close the stream from the read end of the pipe. */
+	(void) fclose(fptr);
+
+	/* Wait for the child process to exit. */
+	do {
+		/*@-type@ */
+		/* splint disagreement about __pid_t vs pid_t. */
+		pid_status = 0;
+		waited_pid = waitpid(pid, &pid_status, 0);
+		/*@+type@ */
+	} while (-1 == waited_pid && errno == EINTR);
+
+	return ok;
+}
+
+
+/*
+ * Read additional "-d" values from the given file, returning false on
+ * failure.
+ */
+static bool opts_watchfd_listfile(opts_t opts, const char *filename)
+{
+	FILE *fptr;
+	char buffer[1024];		 /* flawfinder: ignore */
+	unsigned int linenumber;
+
+	/*
+	 * flawfinder: buffer is zeroed before each use, and fgets() is
+	 * passed one less than its size so the string functions in the loop
+	 * always find a null byte at the end.
+	 */
+
+	fptr = fopen(filename, "r");	    /* flawfinder: ignore */
+	/*
+	 * flawfinder note: caller directly controls filename, and we're
+	 * opening the file read-only.
+	 */
+	if (NULL == fptr) {
+		fprintf(stderr, "%s: -d @: %s: %s\n", opts->program_name, filename, strerror(errno));
+		return false;
+	}
+
+	linenumber = 0;
+	memset(buffer, 0, sizeof(buffer));
+
+	while ((0 == feof(fptr)) && (NULL != fgets(buffer, (int) (sizeof(buffer) - 1), fptr))) {
+		char *argument;
+		char *nlptr;
+
+		linenumber++;
+
+		/* Remove trailing carriage returns or newlines. */
+		nlptr = strchr(buffer, '\r');
+		if (NULL != nlptr)
+			nlptr[0] = '\0';
+		nlptr = strchr(buffer, '\n');
+		if (NULL != nlptr)
+			nlptr[0] = '\0';
+
+		/* Ignore leading spaces. */
+		argument = buffer;
+		while (argument[0] != '\0' && (argument[0] == ' ' || argument[0] == '\t'))
+			argument++;
+
+		/* Ignore blank lines or comment lines. */
+		if ((argument[0] == '\0') || (argument[0] == '#')) {
+			memset(buffer, 0, sizeof(buffer));
+			continue;
+		}
+
+		/* Reject "@" lines. */
+		if (argument[0] == '@') {
+			(void) fclose(fptr);
+			return false;
+		}
+
+		if (!opts_watchfd_parse(opts, argument, filename, linenumber)) {
+			(void) fclose(fptr);
+			return false;
+		}
+
+		memset(buffer, 0, sizeof(buffer));
+	}
+
+	(void) fclose(fptr);
+	return true;
+}
+
+
+/*
+ * Parse a "-d" option value and make the appropriate additions to the list
+ * of watchfd items, returning false on failure.
+ */
+static bool opts_watchfd_parse(opts_t opts, const char *argument, /*@null@ */ const char *filename, unsigned int line)
+{
+	unsigned int parse_pid;
+	int parse_fd;
+
+	if ('@' == argument[0]) {
+		/* "-d @FILE" syntax - read more values from FILE. */
+
+		/* Don't allow this syntax in a list file. */
+		if (NULL != filename) {
+			/*@-mustfreefresh@ *//* see above */
+			fprintf(stderr, "%s: -d @: %s:%u: %s\n",
+				opts->program_name, filename, line, _("list files may not contain @ lines"));
+			return false;
+			/*@+mustfreefresh@ */
+		}
+
+		return opts_watchfd_listfile(opts, argument + 1);
+
+	} else if ('=' == argument[0]) {
+		/* "-d =NAME" syntax - find processes named NAME. */
+		return opts_watchfd_processname(opts, argument + 1);
+	}
+
+	/* "-d PID[:FD]" syntax. */
+
+	parse_pid = 0;
+	parse_fd = -1;
+
+	if (sscanf(argument, "%u:%d", &parse_pid, &parse_fd) < 1) {
+		/*@-mustfreefresh@ *//* see above */
+		if (NULL != filename) {
+			fprintf(stderr, "%s: -d: %s:%u: %s\n",
+				opts->program_name, filename, line, _("process ID or pid:fd pair expected"));
+		} else {
+			fprintf(stderr, "%s: -d: %s\n", opts->program_name, _("process ID or pid:fd pair expected"));
+		}
+		return false;
+		/*@+mustfreefresh@ */
+	}
+
+	if (parse_pid < 1) {
+		/*@-mustfreefresh@ *//* see above */
+		if (NULL != filename) {
+			fprintf(stderr, "%s: -d: %s:%u: %u: %s\n",
+				opts->program_name, filename, line, parse_pid, _("invalid process ID"));
+		} else {
+			fprintf(stderr, "%s: -d: %u: %s\n", opts->program_name, parse_pid, _("invalid process ID"));
+		}
+		return false;
+		/*@+mustfreefresh@ */
+	}
+
+	return opts_watchfd_add_item(opts, (pid_t) parse_pid, parse_fd);
+}
+
 
 /*
  * Set opts->size from the size of the file whose name is size_file,
@@ -136,12 +443,7 @@ static bool opts_use_size_of_file(opts_t opts, const char *size_file)
 	stat_rc = stat(size_file, &sb);
 
 	if (0 != stat_rc) {
-		/*@-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.
-		 */
+		/*@-mustfreefresh@ *//* see above */
 		fprintf(stderr, "%s: %s: %s: %s\n",
 			opts->program_name, size_file, _("failed to stat file"), strerror(errno));
 		return false;
@@ -310,6 +612,8 @@ 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' },
@@ -325,14 +629,14 @@ 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:P:d:m:o:"
 #ifdef ENABLE_DEBUGGING
 	    "!:"
 #endif
 	    ;
 	int c, numopts;
-	unsigned int check_pid, parse_pid;
-	int check_fd, parse_fd;
+	unsigned int check_pid;
+	int check_fd;
 	opts_t opts;
 	char *leafptr;
 
@@ -372,10 +676,9 @@ opts_t opts_parse(unsigned int argc, char **argv)
 
 	numopts = 0;
 
+	opts->action = PV_ACTION_TRANSFER;
 	opts->interval = 1;
 	opts->delay_start = 0;
-	opts->watch_pid = 0;
-	opts->watch_fd = -1;
 	opts->average_rate_window = 30;
 
 	opts->width_set_manually = false;
@@ -453,8 +756,49 @@ opts_t opts_parse(unsigned int argc, char **argv)
 			}
 			break;
 		case 'd':
+			if ('@' == optarg[0]) {
+				/* "-d @FILE" syntax - check FILE exists. */
+				if (optarg[1] == '\0') {
+					/*@-mustfreefresh@ *//* see above */
+					fprintf(stderr, "%s: -%c @: %s\n",
+						opts->program_name, c, _("missing filename"));
+					opts_free(opts);
+					return NULL;
+					/*@+mustfreefresh@ */
+				} else if (0 != access(optarg + 1, R_OK)) {	/* flawfinder: ignore */
+					/*
+					 * flawfinder rationale: we're not
+					 * using access() to check
+					 * permissions, only to help give a
+					 * usable error message, so there's
+					 * no TOCTOU issue.
+					 */
+					/*@-mustfreefresh@ *//* see above */
+					fprintf(stderr, "%s: -%c @: %s: %s\n",
+						opts->program_name, c, optarg + 1, strerror(errno));
+					opts_free(opts);
+					return NULL;
+					/*@+mustfreefresh@ */
+				}
+				break;
+			} else if ('=' == optarg[0]) {
+				/*
+				 * "-d =NAME" syntax - check NAME is not
+				 * blank.
+				 */
+				if (optarg[1] == '\0') {
+					/*@-mustfreefresh@ *//* see above */
+					fprintf(stderr, "%s: -%c %c: %s\n",
+						opts->program_name, c, optarg[0], _("missing process name"));
+					opts_free(opts);
+					return NULL;
+					/*@+mustfreefresh@ */
+				}
+				break;
+			}
 			if (sscanf(optarg, "%u:%d", &check_pid, &check_fd)
 			    < 1) {
+				/* "-d PID[:FD]" syntax - check numbers. */
 				/*@-mustfreefresh@ *//* see above */
 				fprintf(stderr, "%s: -%c: %s\n",
 					opts->program_name, c, _("process ID or pid:fd pair expected"));
@@ -480,11 +824,11 @@ opts_t opts_parse(unsigned int argc, char **argv)
 		switch (c) {
 		case 'h':
 			display_help();
-			opts->do_nothing = true;
+			opts->action = PV_ACTION_NOTHING;
 			return opts;	    /* early return */
 		case 'V':
 			display_version();
-			opts->do_nothing = true;
+			opts->action = PV_ACTION_NOTHING;
 			return opts;	    /* early return */
 		case 'p':
 			opts->progress = true;
@@ -630,6 +974,10 @@ 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;
@@ -641,6 +989,7 @@ opts_t opts_parse(unsigned int argc, char **argv)
 				opts_free(opts);
 				return NULL;
 			}
+			opts->action = PV_ACTION_STORE_AND_FORWARD;
 			break;
 		case 'R':
 			opts->remote = (pid_t) pv_getnum_count(optarg, false);
@@ -670,12 +1019,11 @@ opts_t opts_parse(unsigned int argc, char **argv)
 			}
 			break;
 		case 'd':
-			parse_pid = 0;
-			parse_fd = -1;
-			/* No syntax check here, already done earlier */
-			(void) sscanf(optarg, "%u:%d", &parse_pid, &parse_fd);
-			opts->watch_pid = (pid_t) parse_pid;
-			opts->watch_fd = parse_fd;
+			if (!opts_watchfd_parse(opts, optarg, NULL, 0)) {
+				opts_free(opts);
+				return NULL;
+			}
+			opts->action = PV_ACTION_WATCHFD;
 			break;
 		case 'o':
 			opts->output = pv_strdup(optarg);
@@ -724,7 +1072,7 @@ opts_t opts_parse(unsigned int argc, char **argv)
 	if (NULL == opts)
 		return NULL;
 
-	if (0 != opts->watch_pid) {
+	if (PV_ACTION_WATCHFD == opts->action) {
 		if (opts->linemode || opts->null_terminated_lines || opts->stop_at_size
 		    || (opts->skip_errors > 0) || (opts->buffer_size > 0)
 		    || (opts->rate_limit > 0)) {
@@ -754,14 +1102,24 @@ opts_t opts_parse(unsigned int argc, char **argv)
 			/*@+mustfreefresh@ */
 		}
 
-		if (optind < (int) argc) {
+		if (NULL != opts->output) {
 			/*@-mustfreefresh@ *//* see above */
-			fprintf(stderr, "%s: %s\n", opts->program_name,
+			fprintf(stderr, "%s: -o: %s\n", opts->program_name,
 				_("cannot transfer files when watching file descriptors"));
 			opts_free(opts);
 			return NULL;
 			/*@+mustfreefresh@ */
 		}
+
+		/* Accept additional watchfd arguments. */
+		while (optind < (int) argc) {
+			if (!opts_watchfd_parse(opts, argv[optind], NULL, 0)) {
+				opts_free(opts);
+				return NULL;
+			}
+			optind++;
+		}
+
 #ifndef __APPLE__
 		if (0 != access("/proc/self/fdinfo", X_OK)) {	/* flawfinder: ignore */
 			/*

src/main/remote.c

@@ -22,7 +22,7 @@
 #include <sys/stat.h>
 
 #ifdef PV_REMOTE_CONTROL
-void pv_error(pvstate_t, char *, ...);
+void pv_error(char *, ...);
 
 struct remote_msg {
 	bool progress;			 /* progress bar flag */
@@ -161,7 +161,7 @@ int pv_remote_set(opts_t opts, pvstate_t state)
 	 * Check that the remote process exists.
 	 */
 	if (kill((pid_t) (opts->remote), 0) != 0) {
-		pv_error(state, "%u: %s", opts->remote, strerror(errno));
+		pv_error("%u: %s", opts->remote, strerror(errno));
 		return PV_ERROREXIT_REMOTE_OR_PID;
 	}
 
@@ -225,7 +225,7 @@ int pv_remote_set(opts_t opts, pvstate_t state)
 	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(state, "%s", strerror(errno));
+		pv_error("%s", strerror(errno));
 		return PV_ERROREXIT_REMOTE_OR_PID;
 	}
 
@@ -234,14 +234,14 @@ int pv_remote_set(opts_t opts, pvstate_t state)
 	 * it.
 	 */
 	if (1 != fwrite(&msgbuf, sizeof(msgbuf), 1, control_fptr)) {
-		pv_error(state, "%s", strerror(errno));
+		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(state, "%s", strerror(errno));
+		pv_error("%s", strerror(errno));
 		(void) remove(control_filename);
 		return PV_ERROREXIT_REMOTE_OR_PID;
 	}
@@ -253,7 +253,7 @@ int pv_remote_set(opts_t opts, pvstate_t state)
 	signal_sender = 0;
 	(void) pv_sigusr2_received(state, &signal_sender);
 	if (kill((pid_t) (opts->remote), SIGUSR2) != 0) {
-		pv_error(state, "%u: %s", opts->remote, strerror(errno));
+		pv_error("%u: %s", opts->remote, strerror(errno));
 		(void) remove(control_filename);
 		return PV_ERROREXIT_REMOTE_OR_PID;
 	}
@@ -291,7 +291,7 @@ int pv_remote_set(opts_t opts, pvstate_t state)
 	 * Remove the remote control file.
 	 */
 	if (0 != remove(control_filename)) {
-		pv_error(state, "%s", strerror(errno));
+		pv_error("%s", strerror(errno));
 	}
 
 	/*
@@ -306,7 +306,7 @@ int pv_remote_set(opts_t opts, pvstate_t state)
 	 * warnings, but in this case it's unavoidable, and mitigated by the
 	 * fact we only translate each string once.
 	 */
-	pv_error(state, "%u: %s", opts->remote, _("message not received"));
+	pv_error("%u: %s", opts->remote, _("message not received"));
 	return PV_ERROREXIT_REMOTE_OR_PID;
 	/*@+mustfreefresh @ */
 }
@@ -318,8 +318,10 @@ int pv_remote_set(opts_t opts, pvstate_t state)
  *
  * NB relies on pv_state_set_format() causing the output format to be
  * reparsed.
+ *
+ * Returns true if something was received, false otherwise.
  */
-void pv_remote_check(pvstate_t state)
+bool pv_remote_check(pvstate_t state)
 {
 	pid_t signal_sender;
 	char control_filename[4096];	 /* flawfinder: ignore */
@@ -333,13 +335,13 @@ void pv_remote_check(pvstate_t state)
 	 */
 	signal_sender = 0;
 	if (!pv_sigusr2_received(state, &signal_sender))
-		return;
+		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(state, "%s: %s", control_filename, strerror(errno));
-		return;
+		pv_error("%s: %s", control_filename, strerror(errno));
+		return false;
 	}
 
 	/*
@@ -347,14 +349,14 @@ void pv_remote_check(pvstate_t state)
 	 * it.
 	 */
 	if (1 != fread(&msgbuf, sizeof(msgbuf), 1, control_fptr)) {
-		pv_error(state, "%s", strerror(errno));
+		pv_error("%s", strerror(errno));
 		(void) fclose(control_fptr);
-		return;
+		return false;
 	}
 
 	if (0 != fclose(control_fptr)) {
-		pv_error(state, "%s", strerror(errno));
-		return;
+		pv_error("%s", strerror(errno));
+		return false;
 	}
 
 	/*
@@ -398,6 +400,8 @@ void pv_remote_check(pvstate_t state)
 		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;
 }
 
 

src/pv/calc.c

@@ -17,23 +17,24 @@
  * rate, otherwise calulate the average rate from the difference between the
  * current position + elapsed time pair, and the oldest pair in the buffer.
  */
-static void pv__update_average_rate_history(pvstate_t state, long double rate)
+static void pv__update_average_rate_history(pvtransfercalc_t calc, readonly_pvtransferstate_t transfer,
+					    unsigned int history_interval, long double rate)
 {
-	size_t first = state->calc.history_first;
-	size_t last = state->calc.history_last;
+	size_t first = calc->history_first;
+	size_t last = calc->history_last;
 	long double last_elapsed;
 
-	if (NULL == state->calc.history)
+	if (NULL == calc->history)
 		return;
 
-	last_elapsed = state->calc.history[last].elapsed_sec;
+	last_elapsed = calc->history[last].elapsed_sec;
 
 	/*
 	 * Do nothing if this is not the first call but not enough time has
 	 * elapsed since the previous call yet.
 	 */
 	if ((last_elapsed > 0.0)
-	    && (state->transfer.elapsed_seconds < (last_elapsed + state->control.history_interval)))
+	    && (transfer->elapsed_seconds < (last_elapsed + history_interval)))
 		return;
 
 	/*
@@ -41,53 +42,62 @@ static void pv__update_average_rate_history(pvstate_t state, long double rate)
 	 * buffer.
 	 */
 	if (last_elapsed > 0.0) {
-		size_t len = state->calc.history_len;
+		size_t len = calc->history_len;
 		last = (last + 1) % len;
-		state->calc.history_last = last;
+		calc->history_last = last;
 		if (last == first) {
 			first = (first + 1) % len;
-			state->calc.history_first = first;
+			calc->history_first = first;
 		}
 	}
 
-	state->calc.history[last].elapsed_sec = state->transfer.elapsed_seconds;
-	state->calc.history[last].transferred = state->transfer.transferred;
+	calc->history[last].elapsed_sec = transfer->elapsed_seconds;
+	calc->history[last].transferred = transfer->transferred;
 
 	if (first == last) {
-		state->calc.current_avg_rate = rate;
+		calc->current_avg_rate = rate;
 	} else {
-		off_t bytes = (state->calc.history[last].transferred - state->calc.history[first].transferred);
-		long double sec = (state->calc.history[last].elapsed_sec - state->calc.history[first].elapsed_sec);
-		state->calc.current_avg_rate = (long double) bytes / sec;
+		off_t bytes = (calc->history[last].transferred - calc->history[first].transferred);
+		long double sec = (calc->history[last].elapsed_sec - calc->history[first].elapsed_sec);
+		/* Safety check to avoid division by zero. */
+		if (sec < 0.000001 && sec > -0.000001)
+			sec = 0.000001;
+		calc->current_avg_rate = (long double) bytes / sec;
 	}
 }
 
 
 /*
- * Update all calculated transfer state (state->calc).
+ * Update all calculated transfer state in calc (usually from state->calc).
  *
- * If "final" is true, this is the final update, so
- * state->calc.transfer_rate and state->calc.average_rate are given as an
- * average over the whole transfer; otherwise they are the current transfer
- * rate and current average rate.
+ * If "final" is true, this is the final update, so calc->transfer_rate and
+ * calc->average_rate are given as an average over the whole transfer;
+ * otherwise they are the current transfer rate and current average rate.
  *
- * The value of state->calc.percentage will reflect the percentage
- * completion if state->control.size is greater than zero, otherwise it will
- * increase by 2 each call and wrap at 200.
+ * The value of calc->percentage will reflect the percentage completion if
+ * control->size is greater than zero, otherwise it will increase by 2 each
+ * call and wrap at 200.
  */
-void pv_calculate_transfer_rate(pvstate_t state, bool final)
+void pv_calculate_transfer_rate(pvtransfercalc_t calc, readonly_pvtransferstate_t transfer,
+				readonly_pvcontrol_t control, readonly_pvdisplay_t display, bool final)
 {
 	off_t bytes_since_last;
 	long double time_since_last, transfer_rate, average_rate;
 
-	/* Quick safety check - state must exist. */
-	if (NULL == state)
+	/* Quick safety checks for null pointers. */
+	if (NULL == calc)
+		return;
+	if (NULL == transfer)
+		return;
+	if (NULL == control)
+		return;
+	if (NULL == display)
 		return;
 
 	bytes_since_last = 0;
-	if (state->transfer.transferred >= 0) {
-		bytes_since_last = state->transfer.transferred - state->calc.prev_transferred;
-		state->calc.prev_transferred = state->transfer.transferred;
+	if (transfer->transferred >= 0) {
+		bytes_since_last = transfer->transferred - calc->prev_transferred;
+		calc->prev_transferred = transfer->transferred;
 	}
 
 	/*
@@ -96,37 +106,37 @@ void pv_calculate_transfer_rate(pvstate_t state, bool final)
 	 * adding to that until a reasonable amount of time has passed to
 	 * avoid rate spikes or division by zero.
 	 */
-	time_since_last = state->transfer.elapsed_seconds - state->calc.prev_elapsed_sec;
+	time_since_last = transfer->elapsed_seconds - calc->prev_elapsed_sec;
 	if (time_since_last <= 0.01) {
-		transfer_rate = state->calc.prev_rate;
-		state->calc.prev_trans += bytes_since_last;
+		transfer_rate = calc->prev_rate;
+		calc->prev_trans += bytes_since_last;
 	} else {
 		long double measured_rate;
 
-		transfer_rate = ((long double) bytes_since_last + state->calc.prev_trans) / time_since_last;
+		transfer_rate = ((long double) bytes_since_last + calc->prev_trans) / time_since_last;
 		measured_rate = transfer_rate;
 
-		state->calc.prev_elapsed_sec = state->transfer.elapsed_seconds;
-		state->calc.prev_trans = 0;
+		calc->prev_elapsed_sec = transfer->elapsed_seconds;
+		calc->prev_trans = 0;
 
-		if (state->control.bits)
+		if (control->bits)
 			measured_rate = 8.0 * measured_rate;
 
-		if ((state->calc.measurements_taken < 1) || (measured_rate < state->calc.rate_min)) {
-			state->calc.rate_min = measured_rate;
+		if ((calc->measurements_taken < 1) || (measured_rate < calc->rate_min)) {
+			calc->rate_min = measured_rate;
 		}
-		if (measured_rate > state->calc.rate_max) {
-			state->calc.rate_max = measured_rate;
+		if (measured_rate > calc->rate_max) {
+			calc->rate_max = measured_rate;
 		}
-		state->calc.rate_sum += measured_rate;
-		state->calc.ratesquared_sum += (measured_rate * measured_rate);
-		state->calc.measurements_taken++;
+		calc->rate_sum += measured_rate;
+		calc->ratesquared_sum += (measured_rate * measured_rate);
+		calc->measurements_taken++;
 	}
-	state->calc.prev_rate = transfer_rate;
+	calc->prev_rate = transfer_rate;
 
 	/* Update history and current average rate for ETA. */
-	pv__update_average_rate_history(state, transfer_rate);
-	average_rate = state->calc.current_avg_rate;
+	pv__update_average_rate_history(calc, transfer, control->history_interval, transfer_rate);
+	average_rate = calc->current_avg_rate;
 
 	/*
 	 * If this is the final update at the end of the transfer, we
@@ -134,19 +144,20 @@ void pv_calculate_transfer_rate(pvstate_t state, bool final)
 	 * period of the transfer.
 	 */
 	if (final) {
+		long double total_elapsed_seconds = (long double) (transfer->elapsed_seconds);
 		/* Safety check to avoid division by zero. */
-		if (state->transfer.elapsed_seconds < 0.000001)
-			state->transfer.elapsed_seconds = 0.000001;
+		if (total_elapsed_seconds < 0.000001)
+			total_elapsed_seconds = 0.000001;
 		average_rate =
-		    (((long double) (state->transfer.transferred)) -
-		     ((long double) state->display.initial_offset)) / (long double) (state->transfer.elapsed_seconds);
+		    (((long double) (transfer->transferred)) -
+		     ((long double) display->initial_offset)) / total_elapsed_seconds;
 		transfer_rate = average_rate;
 	}
 
-	state->calc.transfer_rate = transfer_rate;
-	state->calc.average_rate = average_rate;
+	calc->transfer_rate = transfer_rate;
+	calc->average_rate = average_rate;
 
-	if (state->control.size <= 0) {
+	if (control->size <= 0) {
 		/*
 		 * If we don't know the total size of the incoming data,
 		 * then for a percentage, we gradually increase the
@@ -156,16 +167,16 @@ void pv_calculate_transfer_rate(pvstate_t state, bool final)
 		 * 0%-100%, 100%-0%, 0%-100%, and so on.
 		 */
 		if (transfer_rate > 0)
-			state->calc.percentage += 2;
-		if (state->calc.percentage > 199)
-			state->calc.percentage = 0;
+			calc->percentage += 2;
+		if (calc->percentage > 199)
+			calc->percentage = 0;
 	} else {
-		state->calc.percentage = pv_percentage(state->transfer.transferred, state->control.size);
+		calc->percentage = pv_percentage(transfer->transferred, control->size);
 	}
 
 	/* Ensure the percentage is never negative or huge. */
-	if (state->calc.percentage < 0.0)
-		state->calc.percentage = 0.0;
-	if (state->calc.percentage > 100000.0)
-		state->calc.percentage = 100000.0;
+	if (calc->percentage < 0.0)
+		calc->percentage = 0.0;
+	if (calc->percentage > 100000.0)
+		calc->percentage = 100000.0;
 }

src/pv/cursor.c

@@ -47,24 +47,24 @@
  * Create a per-euid, per-tty, lockfile in ${TMPDIR:-${TMP:-/tmp}} for the
  * tty on the given file descriptor.
  */
-static void pv_crs_open_lockfile(pvstate_t state, int fd)
+static void pv_crs_open_lockfile(pvcursorstate_t cursor, readonly_pvcontrol_t control, int fd)
 {
 	char *ttydev;
 	char *tmpdir;
 	int openflags;
 
-	state->cursor.lock_fd = -1;
+	cursor->lock_fd = -1;
 
 	ttydev = ttyname(fd);
 	if (!ttydev) {
-		if (!state->control.force) {
-			pv_error(state, "%s: %s", _("failed to get terminal name"), strerror(errno));
+		if (!control->force) {
+			pv_error("%s: %s", _("failed to get terminal name"), strerror(errno));
 		}
 		/*
 		 * If we don't know our terminal name, we can neither do IPC
 		 * nor make a lock file, so turn off cursor positioning.
 		 */
-		state->control.cursor = 0;
+		cursor->disable = true;
 		debug("%s", "ttyname failed - cursor positioning disabled");
 		return;
 	}
@@ -80,8 +80,8 @@ static void pv_crs_open_lockfile(pvstate_t state, int fd)
 	 * $TMP are rejected, and the destination buffer is bounded.
 	 */
 
-	memset(state->cursor.lock_file, 0, PV_SIZEOF_CRS_LOCK_FILE);
-	(void) pv_snprintf(state->cursor.lock_file,
+	memset(cursor->lock_file, 0, PV_SIZEOF_CRS_LOCK_FILE);
+	(void) pv_snprintf(cursor->lock_file,
 			   PV_SIZEOF_CRS_LOCK_FILE, "%s/pv-%s-%i.lock", tmpdir, basename(ttydev), (int) geteuid());
 
 	/*
@@ -93,7 +93,7 @@ static void pv_crs_open_lockfile(pvstate_t state, int fd)
 	openflags = O_RDWR | O_CREAT;
 #endif
 
-	state->cursor.lock_fd = open(state->cursor.lock_file, openflags, 0600);	/* flawfinder: ignore */
+	cursor->lock_fd = open(cursor->lock_file, openflags, 0600);	/* flawfinder: ignore */
 
 	/*
 	 * flawfinder rationale: we aren't truncating the lock file, we
@@ -102,9 +102,9 @@ static void pv_crs_open_lockfile(pvstate_t state, int fd)
 	 * open() is as safe as we can make it.
 	 */
 
-	if (state->cursor.lock_fd < 0) {
-		pv_error(state, "%s: %s: %s", state->cursor.lock_file, _("failed to open lock file"), strerror(errno));
-		state->control.cursor = 0;
+	if (cursor->lock_fd < 0) {
+		pv_error("%s: %s: %s", cursor->lock_file, _("failed to open lock file"), strerror(errno));
+		cursor->disable = true;
 		return;
 	}
 }
@@ -114,14 +114,14 @@ static void pv_crs_open_lockfile(pvstate_t state, int fd)
  * Lock the terminal on the given file descriptor, falling back to using a
  * lockfile if the terminal itself cannot be locked.
  */
-static void pv_crs_lock(pvstate_t state, int fd)
+static void pv_crs_lock(pvcursorstate_t cursor, readonly_pvcontrol_t control, int fd)
 {
 	struct flock lock;
 	int lock_fd;
 
 	lock_fd = fd;
-	if (state->cursor.lock_fd >= 0)
-		lock_fd = state->cursor.lock_fd;
+	if (cursor->lock_fd >= 0)
+		lock_fd = cursor->lock_fd;
 
 	memset(&lock, 0, sizeof(lock));
 	lock.l_type = (short) F_WRLCK;
@@ -130,20 +130,20 @@ static void pv_crs_lock(pvstate_t state, int fd)
 	lock.l_len = 1;
 	while (fcntl(lock_fd, F_SETLKW, &lock) < 0) {
 		if (errno != EINTR) {
-			if (state->cursor.lock_fd == -2) {
-				pv_crs_open_lockfile(state, fd);
-				if (state->cursor.lock_fd >= 0) {
-					lock_fd = state->cursor.lock_fd;
+			if (cursor->lock_fd == -2) {
+				pv_crs_open_lockfile(cursor, control, fd);
+				if (cursor->lock_fd >= 0) {
+					lock_fd = cursor->lock_fd;
 				}
 			} else {
-				pv_error(state, "%s: %s", _("lock attempt failed"), strerror(errno));
+				pv_error("%s: %s", _("lock attempt failed"), strerror(errno));
 				return;
 			}
 		}
 	}
 
-	if (state->cursor.lock_fd >= 0) {
-		debug("%s: %s", state->cursor.lock_file, "terminal lockfile acquired");
+	if (cursor->lock_fd >= 0) {
+		debug("%s: %s", cursor->lock_file, "terminal lockfile acquired");
 	} else {
 		debug("%s", "terminal lock acquired");
 	}
@@ -154,14 +154,14 @@ static void pv_crs_lock(pvstate_t state, int fd)
  * Unlock the terminal on the given file descriptor.  If pv_crs_lock used
  * lockfile locking, unlock the lockfile.
  */
-static void pv_crs_unlock(pvstate_t state, int fd)
+static void pv_crs_unlock(pvcursorstate_t cursor, int fd)
 {
 	struct flock lock;
 	int lock_fd;
 
 	lock_fd = fd;
-	if (state->cursor.lock_fd >= 0)
-		lock_fd = state->cursor.lock_fd;
+	if (cursor->lock_fd >= 0)
+		lock_fd = cursor->lock_fd;
 
 	memset(&lock, 0, sizeof(lock));
 	lock.l_type = (short) F_UNLCK;
@@ -170,8 +170,8 @@ static void pv_crs_unlock(pvstate_t state, int fd)
 	lock.l_len = 1;
 	(void) fcntl(lock_fd, F_SETLK, &lock);
 
-	if (state->cursor.lock_fd >= 0) {
-		debug("%s: %s", state->cursor.lock_file, "terminal lockfile released");
+	if (cursor->lock_fd >= 0) {
+		debug("%s: %s", cursor->lock_file, "terminal lockfile released");
 	} else {
 		debug("%s", "terminal lock released");
 	}
@@ -185,20 +185,20 @@ static void pv_crs_unlock(pvstate_t state, int fd)
  * cursor mode (including us), and store it in pv_crs_pvcount. If this is
  * larger than pv_crs_pvmax, update pv_crs_pvmax.
  */
-static void pv_crs_ipccount(pvstate_t state)
+static void pv_crs_ipccount(pvcursorstate_t cursor)
 {
 	struct shmid_ds buf;
 
 	memset(&buf, 0, sizeof(buf));
 	buf.shm_nattch = 0;
 
-	(void) shmctl(state->cursor.shmid, IPC_STAT, &buf);
-	state->cursor.pvcount = (int) (buf.shm_nattch);
+	(void) shmctl(cursor->shmid, IPC_STAT, &buf);
+	cursor->pvcount = (int) (buf.shm_nattch);
 
-	if (state->cursor.pvcount > state->cursor.pvmax)
-		state->cursor.pvmax = state->cursor.pvcount;
+	if (cursor->pvcount > cursor->pvmax)
+		cursor->pvmax = cursor->pvcount;
 
-	debug("%s: %d", "pvcount", state->cursor.pvcount);
+	debug("%s: %d", "pvcount", cursor->pvcount);
 }
 #endif				/* HAVE_IPC */
 
@@ -294,7 +294,7 @@ static int pv_crs_get_ypos(int terminalfd)
  * count" of one, and so no initialisation occurs. So, we lock the terminal
  * with pv_crs_lock() while we are attaching and checking.
  */
-static int pv_crs_ipcinit(pvstate_t state, char *ttyfile, int terminalfd)
+static int pv_crs_ipcinit(pvcursorstate_t cursor, readonly_pvcontrol_t control, char *ttyfile, int terminalfd)
 {
 	key_t key;
 
@@ -309,25 +309,25 @@ static int pv_crs_ipcinit(pvstate_t state, char *ttyfile, int terminalfd)
 		return 1;
 	}
 
-	pv_crs_lock(state, terminalfd);
-	if (!state->control.cursor) {
+	pv_crs_lock(cursor, control, terminalfd);
+	if ((!control->cursor) || (cursor->disable)) {
 		debug("%s", "early return - cursor has been disabled");
 		return 1;
 	}
 
-	state->cursor.shmid = shmget(key, sizeof(struct pvcursorstate_s), 0600 | IPC_CREAT);
-	if (state->cursor.shmid < 0) {
+	cursor->shmid = shmget(key, sizeof(struct pvipccursorstate_s), 0600 | IPC_CREAT);
+	if (cursor->shmid < 0) {
 		debug("%s: %s", "shmget failed", strerror(errno));
-		pv_crs_unlock(state, terminalfd);
+		pv_crs_unlock(cursor, terminalfd);
 		return 1;
 	}
 
 	/*@-nullpass@ */
 	/* splint doesn't know shmaddr can be NULL */
-	state->cursor.shared = shmat(state->cursor.shmid, NULL, 0);
+	cursor->shared = shmat(cursor->shmid, NULL, 0);
 	/*@+nullpass@ */
 
-	pv_crs_ipccount(state);
+	pv_crs_ipccount(cursor);
 
 	/*
 	 * If nobody else is attached to the shared memory segment, we're
@@ -335,29 +335,29 @@ static int pv_crs_ipcinit(pvstate_t state, char *ttyfile, int terminalfd)
 	 * current Y cursor co-ordinate and with an initial false value for
 	 * the TOSTOP-added flag.
 	 */
-	if (state->cursor.pvcount < 2) {
-		state->cursor.y_start = pv_crs_get_ypos(terminalfd);
-		state->cursor.shared->y_topmost = state->cursor.y_start;
-		state->cursor.shared->tty_tostop_added = false;
-		state->cursor.y_lastread = state->cursor.y_start;
+	if (cursor->pvcount < 2) {
+		cursor->y_start = pv_crs_get_ypos(terminalfd);
+		cursor->shared->y_topmost = cursor->y_start;
+		cursor->shared->tty_tostop_added = false;
+		cursor->y_lastread = cursor->y_start;
 		debug("%s", "we are the first to attach");
 	}
 
-	state->cursor.y_offset = state->cursor.pvcount - 1;
-	if (state->cursor.y_offset < 0)
-		state->cursor.y_offset = 0;
+	cursor->y_offset = cursor->pvcount - 1;
+	if (cursor->y_offset < 0)
+		cursor->y_offset = 0;
 
 	/*
 	 * If anyone else had attached to the shared memory segment, we need
 	 * to read the top Y co-ordinate from it.
 	 */
-	if (state->cursor.pvcount > 1) {
-		state->cursor.y_start = state->cursor.shared->y_topmost;
-		state->cursor.y_lastread = state->cursor.y_start;
-		debug("%s: %d", "not the first to attach - got top y", state->cursor.y_start);
+	if (cursor->pvcount > 1) {
+		cursor->y_start = cursor->shared->y_topmost;
+		cursor->y_lastread = cursor->y_start;
+		debug("%s: %d", "not the first to attach - got top y", cursor->y_start);
 	}
 
-	pv_crs_unlock(state, terminalfd);
+	pv_crs_unlock(cursor, terminalfd);
 
 	return 0;
 }
@@ -367,15 +367,15 @@ static int pv_crs_ipcinit(pvstate_t state, char *ttyfile, int terminalfd)
 /*
  * Initialise the terminal for cursor positioning.
  */
-void pv_crs_init(pvstate_t state)
+void pv_crs_init(pvcursorstate_t cursor, readonly_pvcontrol_t control, pvtransientflags_t flags)
 {
 	char *ttyfile;
 	int terminalfd;
 
-	state->cursor.lock_fd = -2;
-	state->cursor.lock_file[0] = '\0';
+	cursor->lock_fd = -2;
+	cursor->lock_file[0] = '\0';
 
-	if (!state->control.cursor)
+	if ((!control->cursor) || (cursor->disable))
 		return;
 
 	debug("%s", "init");
@@ -383,7 +383,7 @@ void pv_crs_init(pvstate_t state)
 	ttyfile = ttyname(STDERR_FILENO);
 	if (NULL == ttyfile) {
 		debug("%s: %s", "disabling cursor positioning because ttyname failed", strerror(errno));
-		state->control.cursor = false;
+		cursor->disable = true;
 		return;
 	}
 
@@ -397,23 +397,23 @@ void pv_crs_init(pvstate_t state)
 	 */
 
 	if (terminalfd < 0) {
-		pv_error(state, "%s: %s: %s", _("failed to open terminal"), ttyfile, strerror(errno));
-		state->control.cursor = false;
+		pv_error("%s: %s: %s", _("failed to open terminal"), ttyfile, strerror(errno));
+		cursor->disable = true;
 		return;
 	}
 #ifdef HAVE_IPC
-	if (pv_crs_ipcinit(state, ttyfile, terminalfd) != 0) {
+	if (pv_crs_ipcinit(cursor, control, ttyfile, terminalfd) != 0) {
 		debug("%s", "ipcinit failed, setting noipc flag");
-		state->cursor.noipc = true;
+		cursor->noipc = true;
 	}
 
 	/*
 	 * If we have already set the terminal TOSTOP attribute, set the
 	 * flag in shared memory to let the other instances know.
 	 */
-	if ((!state->cursor.noipc) && (1 == state->flag.clear_tty_tostop_on_exit) && (NULL != state->cursor.shared)) {
+	if ((!cursor->noipc) && (1 == flags->clear_tty_tostop_on_exit) && (NULL != cursor->shared)) {
 		debug("%s", "propagating local clear_tty_tostop_on_exit true value to shared tty_tostop_added flag");
-		state->cursor.shared->tty_tostop_added = true;
+		cursor->shared->tty_tostop_added = true;
 	}
 
 	/*
@@ -421,26 +421,26 @@ void pv_crs_init(pvstate_t state)
 	 * co-ordinate. If we are using IPC, then the pv_crs_ipcinit()
 	 * function takes care of this in a more multi-process-friendly way.
 	 */
-	if (state->cursor.noipc) {
+	if (cursor->noipc) {
 #else				/* ! HAVE_IPC */
 	if (1) {
 #endif				/* HAVE_IPC */
 		/*
 		 * Get current cursor position + 1.
 		 */
-		pv_crs_lock(state, terminalfd);
-		state->cursor.y_start = pv_crs_get_ypos(terminalfd);
+		pv_crs_lock(cursor, control, terminalfd);
+		cursor->y_start = pv_crs_get_ypos(terminalfd);
 		/*
 		 * Move down a line while the terminal is locked, so that
 		 * other processes in the pipeline will get a different
 		 * initial ypos.
 		 */
-		if (state->cursor.y_start > 0)
-			pv_tty_write(state, "\n", 1);
-		pv_crs_unlock(state, terminalfd);
+		if (cursor->y_start > 0)
+			pv_tty_write(flags, "\n", 1);
+		pv_crs_unlock(cursor, terminalfd);
 
-		if (state->cursor.y_start < 1)
-			state->control.cursor = 0;
+		if (cursor->y_start < 1)
+			cursor->disable = true;
 	}
 
 	(void) close(terminalfd);
@@ -451,11 +451,11 @@ void pv_crs_init(pvstate_t state)
 /*
  * Set the "we need to reinitialise cursor positioning" flag.
  */
-void pv_crs_needreinit(pvstate_t state)
+void pv_crs_needreinit(pvcursorstate_t cursor)
 {
-	state->cursor.needreinit += 2;
-	if (state->cursor.needreinit > 3)
-		state->cursor.needreinit = 3;
+	cursor->needreinit += 2;
+	if (cursor->needreinit > 3)
+		cursor->needreinit = 3;
 }
 #endif
 
@@ -465,36 +465,36 @@ void pv_crs_needreinit(pvstate_t state)
  * Reinitialise the cursor positioning code (called if we are backgrounded
  * then foregrounded again).
  */
-static void pv_crs_reinit(pvstate_t state)
+static void pv_crs_reinit(pvcursorstate_t cursor, readonly_pvcontrol_t control, pvtransientflags_t flags)
 {
 	debug("%s", "reinit");
 
-	if (1 == state->flag.suspend_stderr) {
+	if (1 == flags->suspend_stderr) {
 		debug("%s", "reinit abandoned - stderr is suspended");
 		return;
 	}
 
-	pv_crs_lock(state, STDERR_FILENO);
+	pv_crs_lock(cursor, control, STDERR_FILENO);
 
-	state->cursor.needreinit--;
-	if (state->cursor.y_offset < 1)
-		state->cursor.needreinit = 0;
+	cursor->needreinit--;
+	if (cursor->y_offset < 1)
+		cursor->needreinit = 0;
 
-	if (state->cursor.needreinit > 0) {
-		pv_crs_unlock(state, STDERR_FILENO);
+	if (cursor->needreinit > 0) {
+		pv_crs_unlock(cursor, STDERR_FILENO);
 		return;
 	}
 
 	debug("%s", "reinit full");
 
-	state->cursor.y_start = pv_crs_get_ypos(STDERR_FILENO);
+	cursor->y_start = pv_crs_get_ypos(STDERR_FILENO);
 
-	if ((state->cursor.y_offset < 1) && (NULL != state->cursor.shared)) {
-		state->cursor.shared->y_topmost = state->cursor.y_start;
+	if ((cursor->y_offset < 1) && (NULL != cursor->shared)) {
+		cursor->shared->y_topmost = cursor->y_start;
 	}
-	state->cursor.y_lastread = state->cursor.y_start;
+	cursor->y_lastread = cursor->y_start;
 
-	pv_crs_unlock(state, STDERR_FILENO);
+	pv_crs_unlock(cursor, STDERR_FILENO);
 }
 #endif
 
@@ -503,12 +503,17 @@ static void pv_crs_reinit(pvstate_t state)
  * Output a single-line update (\0-terminated), using the ECMA-48 CSI "CUP"
  * sequence to move the cursor to the correct position to do so.
  */
-void pv_crs_update(pvstate_t state, const char *output_line)
+void pv_crs_update(pvcursorstate_t cursor, readonly_pvcontrol_t control, pvtransientflags_t flags,
+		   const char *output_line)
 {
 	char cup_cmd[32];		 /* flawfinder: ignore */
 	size_t cup_cmd_length, output_line_length;
 	int y;
 
+	/* Early return if cursor positioning was disabled. */
+	if (cursor->disable)
+		return;
+
 	/*
 	 * flawfinder rationale: the "cup_cmd" buffer is always zeroed
 	 * before each use, and is only written to by pv_snprintf() bounded
@@ -520,24 +525,24 @@ void pv_crs_update(pvstate_t state, const char *output_line)
 	/* flawfinder - output_line is explictly expected to be \0-terminated. */
 
 #ifdef HAVE_IPC
-	if (!state->cursor.noipc) {
-		if (state->cursor.needreinit > 0)
-			pv_crs_reinit(state);
+	if (!cursor->noipc) {
+		if (cursor->needreinit > 0)
+			pv_crs_reinit(cursor, control, flags);
 
-		pv_crs_ipccount(state);
-		if (NULL != state->cursor.shared) {
-			if (state->cursor.y_lastread != state->cursor.shared->y_topmost) {
-				state->cursor.y_start = state->cursor.shared->y_topmost;
-				state->cursor.y_lastread = state->cursor.y_start;
+		pv_crs_ipccount(cursor);
+		if (NULL != cursor->shared) {
+			if (cursor->y_lastread != cursor->shared->y_topmost) {
+				cursor->y_start = cursor->shared->y_topmost;
+				cursor->y_lastread = cursor->y_start;
 			}
 		}
 
-		if (state->cursor.needreinit > 0)
+		if (cursor->needreinit > 0)
 			return;
 	}
 #endif				/* HAVE_IPC */
 
-	y = state->cursor.y_start;
+	y = cursor->y_start;
 
 #ifdef HAVE_IPC
 	/*
@@ -546,41 +551,41 @@ void pv_crs_update(pvstate_t state, const char *output_line)
 	 * scroll the screen (only if we're the first `pv'), and then move
 	 * our initial Y co-ordinate up.
 	 */
-	if (((state->cursor.y_start + state->cursor.pvmax) > (int) (state->control.height))
-	    && (!state->cursor.noipc)
+	if (((cursor->y_start + cursor->pvmax) > (int) (control->height))
+	    && (!cursor->noipc)
 	    ) {
 		int offs;
 
-		offs = ((state->cursor.y_start + state->cursor.pvmax) - state->control.height);
+		offs = ((cursor->y_start + cursor->pvmax) - control->height);
 
-		state->cursor.y_start -= offs;
-		if (state->cursor.y_start < 1)
-			state->cursor.y_start = 1;
+		cursor->y_start -= offs;
+		if (cursor->y_start < 1)
+			cursor->y_start = 1;
 
 		debug("%s: %d", "scroll offset", offs);
 
 		/*
 		 * Scroll the screen if we're the first `pv'.
 		 */
-		if (0 == state->cursor.y_offset) {
-			pv_crs_lock(state, STDERR_FILENO);
+		if (0 == cursor->y_offset) {
+			pv_crs_lock(cursor, control, STDERR_FILENO);
 
 			memset(cup_cmd, 0, sizeof(cup_cmd));
-			(void) pv_snprintf(cup_cmd, sizeof(cup_cmd), "\033[%u;1H", state->control.height);
+			(void) pv_snprintf(cup_cmd, sizeof(cup_cmd), "\033[%u;1H", control->height);
 			cup_cmd_length = strlen(cup_cmd);	/* flawfinder: ignore */
-			pv_tty_write(state, cup_cmd, cup_cmd_length);
+			pv_tty_write(flags, cup_cmd, cup_cmd_length);
 			for (; offs > 0; offs--) {
-				pv_tty_write(state, "\n", 1);
+				pv_tty_write(flags, "\n", 1);
 			}
 
-			pv_crs_unlock(state, STDERR_FILENO);
+			pv_crs_unlock(cursor, STDERR_FILENO);
 
 			debug("%s", "we are the first - scrolled screen");
 		}
 	}
 
-	if (!state->cursor.noipc)
-		y = state->cursor.y_start + state->cursor.y_offset;
+	if (!cursor->noipc)
+		y = cursor->y_start + cursor->y_offset;
 #endif				/* HAVE_IPC */
 
 	/*
@@ -601,19 +606,19 @@ void pv_crs_update(pvstate_t state, const char *output_line)
 	 * pv_snprintf() fails to run the string will be of zero length.
 	 */
 
-	pv_crs_lock(state, STDERR_FILENO);
+	pv_crs_lock(cursor, control, STDERR_FILENO);
 
-	pv_tty_write(state, cup_cmd, cup_cmd_length);
-	pv_tty_write(state, output_line, output_line_length);
+	pv_tty_write(flags, cup_cmd, cup_cmd_length);
+	pv_tty_write(flags, output_line, output_line_length);
 
-	pv_crs_unlock(state, STDERR_FILENO);
+	pv_crs_unlock(cursor, STDERR_FILENO);
 }
 
 
 /*
  * Reposition the cursor to a final position.
  */
-void pv_crs_fini(pvstate_t state)
+void pv_crs_fini(pvcursorstate_t cursor, readonly_pvcontrol_t control, pvtransientflags_t flags)
 {
 	char cup_cmd[32];		 /* flawfinder: ignore */
 	unsigned int y;
@@ -622,15 +627,15 @@ void pv_crs_fini(pvstate_t state)
 
 	debug("%s", "fini");
 
-	y = (unsigned int) (state->cursor.y_start);
+	y = (unsigned int) (cursor->y_start);
 
 #ifdef HAVE_IPC
-	if ((state->cursor.pvmax > 0) && (!state->cursor.noipc))
-		y += state->cursor.pvmax - 1;
+	if ((cursor->pvmax > 0) && (!cursor->noipc))
+		y += cursor->pvmax - 1;
 #endif				/* HAVE_IPC */
 
-	if (y > state->control.height)
-		y = state->control.height;
+	if (y > control->height)
+		y = control->height;
 
 	/*
 	 * Absolute bounds check.
@@ -641,9 +646,11 @@ void pv_crs_fini(pvstate_t state)
 	memset(cup_cmd, 0, sizeof(cup_cmd));
 	(void) pv_snprintf(cup_cmd, sizeof(cup_cmd), "\033[%u;1H\n", y);
 
-	pv_crs_lock(state, STDERR_FILENO);
+	pv_crs_lock(cursor, control, STDERR_FILENO);
 
-	pv_tty_write(state, cup_cmd, strlen(cup_cmd));	/* flawfinder: ignore */
+	if (!cursor->disable) {
+		pv_tty_write(flags, cup_cmd, strlen(cup_cmd));	/* flawfinder: ignore */
+	}
 	/* flawfinder - pv_snprintf() always \0-terminates (see above). */
 
 #ifdef HAVE_IPC
@@ -652,40 +659,40 @@ void pv_crs_fini(pvstate_t state)
 	 * attribute, set our local flag so pv_sig_fini() will know about
 	 * it.
 	 */
-	if ((!state->cursor.noipc) && (NULL != state->cursor.shared) && state->cursor.shared->tty_tostop_added) {
-		if (0 == state->flag.clear_tty_tostop_on_exit) {
+	if ((!cursor->noipc) && (NULL != cursor->shared) && cursor->shared->tty_tostop_added) {
+		if (0 == flags->clear_tty_tostop_on_exit) {
 			debug("%s",
 			      "propagating shared tty_tostop_added true value to local clear_tty_tostop_on_exit flag");
-			state->flag.clear_tty_tostop_on_exit = 1;
+			flags->clear_tty_tostop_on_exit = 1;
 		}
 	}
 
-	pv_crs_ipccount(state);
-	if (NULL != state->cursor.shared) {
-		(void) shmdt(state->cursor.shared);
+	pv_crs_ipccount(cursor);
+	if (NULL != cursor->shared) {
+		(void) shmdt(cursor->shared);
 	}
-	state->cursor.shared = NULL;
+	cursor->shared = NULL;
 
 	/*
 	 * If we are the last instance detaching from the shared memory,
 	 * delete it so it's not left lying around.
 	 */
-	if (state->cursor.pvcount < 2) {
+	if (cursor->pvcount < 2) {
 		struct shmid_ds shm_buf;
 		memset(&shm_buf, 0, sizeof(shm_buf));
-		(void) shmctl(state->cursor.shmid, IPC_RMID, &shm_buf);
+		(void) shmctl(cursor->shmid, IPC_RMID, &shm_buf);
 	}
 
 #endif				/* HAVE_IPC */
 
-	pv_crs_unlock(state, STDERR_FILENO);
+	pv_crs_unlock(cursor, STDERR_FILENO);
 
-	if (state->cursor.lock_fd >= 0) {
-		(void) close(state->cursor.lock_fd);
+	if (cursor->lock_fd >= 0) {
+		(void) close(cursor->lock_fd);
 		/*
 		 * We can get away with removing this on exit because all
 		 * the other PVs will be finishing at the same sort of time.
 		 */
-		(void) remove(state->cursor.lock_file);
+		(void) remove(cursor->lock_file);
 	}
 }

src/pv/display.c

@@ -49,17 +49,53 @@
 #include <sys/ioctl.h>
 #endif
 
+/*
+ * The error prefix for messages (the program name); whether it has been
+ * set; and whether any output has been displayed yet, indicating whether
+ * any errors must be preceded by a newline.
+ */
+static char pv__error_prefix[64];	 /* flawfinder: ignore */
+static bool pv__error_prefix_set = false;
+static bool pv__output_produced = false;
+
+/*
+ * flawfinder rationale: zeroed before use, string copy is bounded to 1 less
+ * than size so it always has \0 termination.  Not used unless initialised,
+ * by checking pv__error_prefix_set.
+ */
+
+/*
+ * Set the error message prefix.
+ */
+void pv_set_error_prefix( /*@unique@ */ const char *prefix)
+{
+	if (NULL == prefix)
+		return;
+	memset(pv__error_prefix, 0, sizeof(pv__error_prefix));
+	strncpy(pv__error_prefix, prefix, sizeof(pv__error_prefix) - 1);	/* flawfinder: ignore */
+	pv__error_prefix_set = true;
+	/*
+	 * flawfinder rationale: strncpy's pointers are as valid as we can
+	 * make them since the first is a static buffer and the second is
+	 * caller-supplied.  The caller must \0-terminate the string but in
+	 * any case it is bounded to 1 less than the size of the
+	 * destination.  The destination is zeroed before use so the result
+	 * is guaranteed to be \0-terminated.
+	 */
+}
+
 /*
  * Output an error message.  If we've displayed anything to the terminal
  * already, then put a newline before our error so we don't write over what
  * we've written.
  */
-void pv_error(pvstate_t state, char *format, ...)
+void pv_error(char *format, ...)
 {
 	va_list ap;
-	if (state->display.display_visible)
+	if (pv__output_produced)
 		fprintf(stderr, "\n");
-	fprintf(stderr, "%s: ", state->status.program_name);
+	if (pv__error_prefix_set)
+		fprintf(stderr, "%s: ", pv__error_prefix);
 	va_start(ap, format);
 	(void) vfprintf(stderr, format, ap);	/* flawfinder: ignore */
 	va_end(ap);
@@ -140,9 +176,9 @@ void pv_write_retry(int fd, const char *buf, size_t count)
  * Write the given buffer to the terminal, like pv_write_retry(), unless
  * stderr is suspended.
  */
-void pv_tty_write(pvstate_t state, const char *buf, size_t count)
+void pv_tty_write(readonly_pvtransientflags_t flags, const char *buf, size_t count)
 {
-	while (0 == state->flag.suspend_stderr && count > 0) {
+	while (0 == flags->suspend_stderr && count > 0) {
 		ssize_t nwritten;
 
 		nwritten = write(STDERR_FILENO, buf, count);
@@ -553,15 +589,26 @@ char *pv_format_sequences(void)
 
 /*
  * Initialise the output format structure, based on the current options.
+ *
+ * May update status->checked_colour_support and
+ * status->terminal_supports_colour.
  */
-static void pv__format_init(pvstate_t state, /*@null@ */ const char *format_supplied, pvdisplay_t display)
+static void pv__format_init(pvprogramstatus_t status, readonly_pvcontrol_t control, readonly_pvtransferstate_t transfer,
+			    readonly_pvtransfercalc_t calc,
+			    /*@null@ */ const char *format_supplied, pvdisplay_t display)
 {
 	struct pvdisplay_component_s *format_component_array;
 	const char *display_format;
 	size_t strpos;
 	size_t segment;
 
-	if (NULL == state)
+	if (NULL == status)
+		return;
+	if (NULL == control)
+		return;
+	if (NULL == transfer)
+		return;
+	if (NULL == calc)
 		return;
 	if (NULL == display)
 		return;
@@ -578,7 +625,7 @@ static void pv__format_init(pvstate_t state, /*@null@ */ const char *format_supp
 	display->showing_previous_line = false;
 	display->format_uses_colour = false;
 
-	display_format = NULL == format_supplied ? state->control.default_format : format_supplied;
+	display_format = NULL == format_supplied ? control->default_format : format_supplied;
 
 	if (NULL == display_format)
 		return;
@@ -779,9 +826,12 @@ static void pv__format_init(pvstate_t state, /*@null@ */ const char *format_supp
 			memset(&formatter_info, 0, sizeof(formatter_info));
 			dummy_buffer[0] = '\0';
 
-			formatter_info.state = state;
 			formatter_info.display = display;
 			formatter_info.segment = &(display->format[segment]);
+			formatter_info.status = status;
+			formatter_info.control = control;
+			formatter_info.transfer = transfer;
+			formatter_info.calc = calc;
 			formatter_info.buffer = dummy_buffer;
 			formatter_info.buffer_size = 0;
 			formatter_info.offset = 0;
@@ -801,16 +851,16 @@ static void pv__format_init(pvstate_t state, /*@null@ */ const char *format_supp
 		display->format_segment_count++;
 	}
 
-	if (display->format_uses_colour && !state->control.checked_colour_support) {
-		state->control.checked_colour_support = true;
+	if (display->format_uses_colour && !status->checked_colour_support) {
+		status->checked_colour_support = true;
 #ifdef ENABLE_NCURSES
 		/*
 		 * If we have terminal info support, check whether the
 		 * current terminal supports colour - or just assume it's
 		 * supported if we're forcing output.
 		 */
-		if (true == state->control.force) {
-			state->control.can_display_colour = true;
+		if (true == control->force) {
+			status->terminal_supports_colour = true;
 			debug("%s", "force mode - assuming terminal supports colour");
 		} else {
 			char *term_env = NULL;
@@ -820,22 +870,22 @@ static void pv__format_init(pvstate_t state, /*@null@ */ const char *format_supp
 			 * flawfinder - here we pass responsibility to the
 			 * ncurses library to behave OK with $TERM.
 			 */
-			state->control.can_display_colour = false;
+			status->terminal_supports_colour = false;
 			if (NULL != term_env) {
 				int setup_err = 0;
 
 				if ((0 == setupterm(term_env, STDERR_FILENO, &setup_err))
 				    && (tigetnum("colors") > 1)
 				    ) {
-					state->control.can_display_colour = true;
+					status->terminal_supports_colour = true;
 					debug("%s: %s", term_env, "terminal supports colour");
 				} else {
-					state->control.can_display_colour = false;
+					status->terminal_supports_colour = false;
 					debug("%s: %s", term_env, "terminal does not support colour");
 				}
 			} else {
 				/* If TERM is unset, disable colour. */
-				state->control.can_display_colour = false;
+				status->terminal_supports_colour = false;
 				debug("%s", "no TERM variable - disabling colour support");
 			}
 		}
@@ -846,8 +896,8 @@ static void pv__format_init(pvstate_t state, /*@null@ */ const char *format_supp
 		 * to determine whether colour is available, unless --force
 		 * was supplied, in which case colour support is assumed.
 		 */
-		if (true == state->control.force) {
-			state->control.can_display_colour = true;
+		if (true == control->force) {
+			status->terminal_supports_colour = true;
 			debug("%s", "force mode - assuming terminal supports colour");
 		} else {
 			FILE *command_fptr;
@@ -863,21 +913,21 @@ static void pv__format_init(pvstate_t state, /*@null@ */ const char *format_supp
 			 */
 
 			if (NULL == command_fptr) {
-				state->control.can_display_colour = false;
+				status->terminal_supports_colour = false;
 				debug("%s (%s)", "popen failed - disabling colour support", strerror(errno));
 			} else {
 				int colour_count;
 				if (1 == fscanf(command_fptr, "%d", &colour_count)) {
 					if (colour_count > 1) {
-						state->control.can_display_colour = true;
+						status->terminal_supports_colour = true;
 						debug("%s (%d)", "terminal supports colour", colour_count);
 					} else {
-						state->control.can_display_colour = false;
+						status->terminal_supports_colour = false;
 						debug("%s (%d)",
 						      "fewer than 2 colours available - disabling colour support");
 					}
 				} else {
-					state->control.can_display_colour = false;
+					status->terminal_supports_colour = false;
 					debug("%s", "tput did not produce a number - disabling colour support");
 				}
 				/*@-unrecog@ *//* splint doesn't know pclose(). */
@@ -890,7 +940,7 @@ static void pv__format_init(pvstate_t state, /*@null@ */ const char *format_supp
 		 * Without terminal info support, just assume colour is
 		 * available.
 		 */
-		state->control.can_display_colour = true;
+		status->terminal_supports_colour = true;
 		debug("%s", "terminal info support not compiled in - assuming colour support");
 #endif				/* (! ENABLE_NCURSES) && (! USE_POPEN_TPUTS) */
 #endif				/* ! ENABLE_NCURSES */
@@ -900,7 +950,7 @@ static void pv__format_init(pvstate_t state, /*@null@ */ const char *format_supp
 
 /*
  * Update display->display_buffer with status information formatted
- * according to the state held within the given structure.
+ * according to the state held within the given structures.
  *
  * If "reinitialise" is true, the format string is reparsed first.  This
  * should be true for the first call, and true whenever the format is
@@ -914,9 +964,14 @@ static void pv__format_init(pvstate_t state, /*@null@ */ const char *format_supp
  * When returning true, this function will have also set
  * display->display_string_len to the length of the string in
  * display->display_buffer, in bytes.
+ *
+ * Updates status->exit_status if buffer allocation fails.
+ *
+ * See pv__format_init for the adjustments that may be made to "status".
  */
-bool pv_format(pvstate_t state, /*@null@ */ const char *format_supplied, pvdisplay_t display, bool reinitialise,
-	       bool final)
+bool pv_format(pvprogramstatus_t status, readonly_pvcontrol_t control, readonly_pvtransferstate_t transfer,
+	       readonly_pvtransfercalc_t calc, /*@null@ */ const char *format_supplied, pvdisplay_t display,
+	       bool reinitialise, bool final)
 {
 	struct pvdisplay_component_s *format_component_array;
 	char display_segments[PV_SIZEOF_FORMAT_SEGMENTS_BUF];	/* flawfinder: ignore - always bounded */
@@ -930,17 +985,26 @@ bool pv_format(pvstate_t state, /*@null@ */ const char *format_supplied, pvdispl
 	memset(&formatter_info, 0, sizeof(formatter_info));
 	display_segments[0] = '\0';
 
-	/* Quick safety check - state and display must exist. */
-	if (NULL == state)
+	/* Quick safety check for null pointers. */
+	if (NULL == status)
+		return false;
+	if (NULL == control)
+		return false;
+	if (NULL == transfer)
+		return false;
+	if (NULL == calc)
 		return false;
 	if (NULL == display)
 		return false;
 
-	formatter_info.state = state;
 	formatter_info.display = display;
 	formatter_info.buffer = display_segments;
 	formatter_info.buffer_size = sizeof(display_segments);
 	formatter_info.offset = 0;
+	formatter_info.status = status;
+	formatter_info.control = control;
+	formatter_info.transfer = transfer;
+	formatter_info.calc = calc;
 
 	format_component_array = pv__format_components();
 
@@ -949,24 +1013,24 @@ bool pv_format(pvstate_t state, /*@null@ */ const char *format_supplied, pvdispl
 
 	/* Reinitialise if we were asked to. */
 	if (reinitialise)
-		pv__format_init(state, format_supplied, display);
+		pv__format_init(status, control, transfer, calc, format_supplied, display);
 
 	/* The format string is needed for the static segments. */
-	display_format = NULL == format_supplied ? state->control.default_format : format_supplied;
+	display_format = NULL == format_supplied ? control->default_format : format_supplied;
 	if (NULL == display_format)
 		return false;
 
 	/* Determine the type of thing being counted for transfer, rate, etc. */
 	display->count_type = PV_TRANSFERCOUNT_BYTES;
-	if (state->control.linemode)
+	if (control->linemode)
 		display->count_type = PV_TRANSFERCOUNT_LINES;
-	else if (state->control.decimal_units)
+	else if (control->decimal_units)
 		display->count_type = PV_TRANSFERCOUNT_DECBYTES;
 
 	/*
 	 * Reallocate the output buffer if the display width changes.
 	 */
-	if (display->display_buffer != NULL && display->display_buffer_size < (size_t) ((state->control.width * 4))) {
+	if (display->display_buffer != NULL && display->display_buffer_size < (size_t) ((control->width * 4))) {
 		free(display->display_buffer);
 		display->display_buffer = NULL;
 		display->display_buffer_size = 0;
@@ -979,15 +1043,15 @@ bool pv_format(pvstate_t state, /*@null@ */ const char *format_supplied, pvdispl
 		char *new_buffer;
 		size_t new_size;
 
-		new_size = (size_t) ((4 * state->control.width) + 80);
-		if (NULL != state->control.name)
-			new_size += strlen(state->control.name);	/* flawfinder: ignore */
+		new_size = (size_t) ((4 * control->width) + 80);
+		if (NULL != control->name)
+			new_size += strlen(control->name);	/* flawfinder: ignore */
 		/* flawfinder: name is always set by pv_strdup(), which bounds with a \0. */
 
 		new_buffer = malloc(new_size + 16);
 		if (NULL == new_buffer) {
-			pv_error(state, "%s: %s", _("buffer allocation failed"), strerror(errno));
-			state->status.exit_status |= PV_ERROREXIT_MEMORY;
+			pv_error("%s: %s", _("buffer allocation failed"), strerror(errno));
+			status->exit_status |= PV_ERROREXIT_MEMORY;
 			display->display_buffer = NULL;
 			return false;
 		}
@@ -1054,8 +1118,8 @@ bool pv_format(pvstate_t state, /*@null@ */ const char *format_supplied, pvdispl
 	 */
 
 	dynamic_segment_width = 0;
-	if (state->control.width > static_portion_width)
-		dynamic_segment_width = state->control.width - static_portion_width;
+	if (control->width > static_portion_width)
+		dynamic_segment_width = control->width - static_portion_width;
 
 	/*
 	 * Divide the total remaining screen space by the number of dynamic
@@ -1064,8 +1128,8 @@ bool pv_format(pvstate_t state, /*@null@ */ const char *format_supplied, pvdispl
 	if (dynamic_segment_count > 1)
 		dynamic_segment_width /= dynamic_segment_count;
 
-	debug("control.width=%d static_portion_width=%d dynamic_segment_width=%d dynamic_segment_count=%d",
-	      state->control.width, static_portion_width, dynamic_segment_width, dynamic_segment_count);
+	debug("control->width=%d static_portion_width=%d dynamic_segment_width=%d dynamic_segment_count=%d",
+	      control->width, static_portion_width, dynamic_segment_width, dynamic_segment_count);
 
 	for (segment_idx = 0; segment_idx < display->format_segment_count; segment_idx++) {
 		pvdisplay_segment_t segment;
@@ -1153,7 +1217,7 @@ bool pv_format(pvstate_t state, /*@null@ */ const char *format_supplied, pvdispl
 	 * spaces at the end, so that we don't leave dangling bits behind.
 	 */
 	if ((new_display_string_width < display->display_string_width)
-	    && (state->control.width >= display->prev_screen_width)) {
+	    && (control->width >= display->prev_screen_width)) {
 		char spaces[32];	 /* flawfinder: ignore - terminated, bounded */
 		int spaces_to_add;
 
@@ -1173,7 +1237,7 @@ bool pv_format(pvstate_t state, /*@null@ */ const char *format_supplied, pvdispl
 
 	display->display_string_bytes = new_display_string_bytes;
 	display->display_string_width = new_display_string_width;
-	display->prev_screen_width = state->control.width;
+	display->prev_screen_width = control->width;
 
 	return true;
 }
@@ -1185,78 +1249,98 @@ bool pv_format(pvstate_t state, /*@null@ */ const char *format_supplied, pvdispl
  * If "final" is true, this is the final update, so the rate is given as an
  * an average over the whole transfer; otherwise the current rate is shown.
  */
-void pv_display(pvstate_t state, bool final)
+void pv_display(pvprogramstatus_t status, readonly_pvcontrol_t control, pvtransientflags_t flags,
+		readonly_pvtransferstate_t transfer, pvtransfercalc_t calc, pvcursorstate_t cursor, pvdisplay_t display,
+		/*@null@ */ pvdisplay_t extra_display, bool final)
 {
 	bool reinitialise = false;
 
-	if (NULL == state)
+	if (NULL == status)
+		return;
+	if (NULL == control)
+		return;
+	if (NULL == flags)
+		return;
+	if (NULL == transfer)
+		return;
+	if (NULL == calc)
+		return;
+	if (NULL == cursor)
+		return;
+	if (NULL == display)
 		return;
 
 	pv_sig_checkbg();
 
-	pv_calculate_transfer_rate(state, final);
+	pv_calculate_transfer_rate(calc, transfer, control, display, final);
 
 	/*
 	 * Enable colour on the main display, and disable it on the extra
 	 * display (process title, window title).
 	 */
-	state->display.colour_permitted = true;
-	state->extra_display.colour_permitted = false;
+	display->colour_permitted = true;
+	if (NULL != extra_display)
+		extra_display->colour_permitted = false;
 
 	/*
 	 * If the display options need reparsing, do so to generate new
 	 * formatting parameters.
 	 */
-	if (0 != state->flag.reparse_display) {
+	if (0 != flags->reparse_display) {
 		reinitialise = true;
-		state->flag.reparse_display = 0;
+		flags->reparse_display = 0;
 	}
 
-	if (!pv_format(state, state->control.format_string, &(state->display), reinitialise, final))
+	if (!pv_format(status, control, transfer, calc, control->format_string, display, reinitialise, final))
 		return;
 
-	if (0 != state->control.extra_displays) {
-		if (!pv_format(state, state->control.extra_format_string, &(state->extra_display), reinitialise, final))
+	if ((NULL != extra_display) && (0 != control->extra_displays)) {
+		if (!pv_format
+		    (status, control, transfer, calc, control->extra_format_string, extra_display, reinitialise, final))
 			return;
 	}
 
-	if (NULL == state->display.display_buffer)
+	if (NULL == display->display_buffer)
 		return;
 
-	if (state->control.numeric) {
-		pv_tty_write(state, state->display.display_buffer, state->display.display_string_bytes);
-		pv_tty_write(state, "\n", 1);
-	} else if (state->control.cursor) {
-		if (state->control.force || pv_in_foreground()) {
-			pv_crs_update(state, state->display.display_buffer);
-			state->display.display_visible = true;
+	if (control->numeric) {
+		pv_tty_write(flags, display->display_buffer, display->display_string_bytes);
+		pv_tty_write(flags, "\n", 1);
+	} else if (control->cursor) {
+		if (control->force || pv_in_foreground()) {
+			pv_crs_update(cursor, control, flags, display->display_buffer);
+			display->output_produced = true;
+			pv__output_produced = true;
 		}
 	} else {
-		if (state->control.force || pv_in_foreground()) {
-			pv_tty_write(state, state->display.display_buffer, state->display.display_string_bytes);
-			pv_tty_write(state, "\r", 1);
-			state->display.display_visible = true;
+		if (control->force || pv_in_foreground()) {
+			pv_tty_write(flags, display->display_buffer, display->display_string_bytes);
+			pv_tty_write(flags, "\r", 1);
+			display->output_produced = true;
+			pv__output_produced = true;
 		}
 	}
 
-	debug("%s: [%s]", "display", state->display.display_buffer);
+	debug("%s: [%s]", "display", display->display_buffer);
 
-	if ((0 != (PV_DISPLAY_WINDOWTITLE & state->control.extra_displays))
-	    && (state->control.force || pv_in_foreground())
-	    && (NULL != state->extra_display.display_buffer)
+	if ((0 != (PV_DISPLAY_WINDOWTITLE & control->extra_displays))
+	    && (control->force || pv_in_foreground())
+	    && (NULL != extra_display)
+	    && (NULL != extra_display->display_buffer)
 	    ) {
-		pv_tty_write(state, "\033]2;", 4);
-		pv_tty_write(state, state->extra_display.display_buffer, state->extra_display.display_string_bytes);
-		pv_tty_write(state, "\033\\", 2);
-		state->extra_display.display_visible = true;
-		debug("%s: [%s]", "windowtitle display", state->extra_display.display_buffer);
+		pv_tty_write(flags, "\033]2;", 4);
+		pv_tty_write(flags, extra_display->display_buffer, extra_display->display_string_bytes);
+		pv_tty_write(flags, "\033\\", 2);
+		extra_display->output_produced = true;
+		debug("%s: [%s]", "windowtitle display", extra_display->display_buffer);
 	}
 
-	if ((0 != (PV_DISPLAY_PROCESSTITLE & state->control.extra_displays))
-	    && (NULL != state->extra_display.display_buffer)
+	if ((0 != (PV_DISPLAY_PROCESSTITLE & control->extra_displays))
+	    && (NULL != extra_display)
+	    && (NULL != extra_display->display_buffer)
 	    ) {
-		setproctitle("%s", state->extra_display.display_buffer);
-		state->extra_display.display_visible = true;
-		debug("%s: [%s]", "processtitle display", state->extra_display.display_buffer);
+		setproctitle("%s", extra_display->display_buffer);
+		extra_display->output_produced = true;
+		debug("%s: [%s]", "processtitle display", extra_display->display_buffer);
 	}
 }

src/pv/file.c

@@ -54,6 +54,10 @@ static off_t pv_calc_total_bytes(pvstate_t state)
 	for (file_idx = 0; file_idx < state->files.file_count; file_idx++) {
 		int rc;
 
+		/* Skip any NULL entries, though they should be impossible. */
+		if (NULL == state->files.filename[file_idx])
+			continue;
+
 		if (0 == strcmp(state->files.filename[file_idx], "-")) {
 			rc = fstat(STDIN_FILENO, &sb);
 			if (rc != 0) {
@@ -144,7 +148,7 @@ static off_t pv_calc_total_bytes(pvstate_t state)
 				total = end_position;
 			}
 			if (lseek(state->control.output_fd, 0, SEEK_SET) != 0) {
-				pv_error(state, "%s: %s: %s",
+				pv_error("%s: %s: %s",
 					 NULL == state->control.output_name ? "(null)" : state->control.output_name,
 					 _("failed to seek to start of output"), strerror(errno));
 				state->status.exit_status |= PV_ERROREXIT_ACCESS;
@@ -187,6 +191,10 @@ static off_t pv_calc_total_lines(pvstate_t state)
 		int fd = -1;
 		int rc = 0;
 
+		/* Skip any NULL entries, though they should be impossible. */
+		if (NULL == state->files.filename[file_idx])
+			continue;
+
 		if (0 == strcmp(state->files.filename[file_idx], "-")) {
 			rc = fstat(STDIN_FILENO, &sb);
 			if ((rc != 0) || (!S_ISREG(sb.st_mode))) {
@@ -228,7 +236,7 @@ static off_t pv_calc_total_lines(pvstate_t state)
 			 * OK.
 			 */
 			if (numread < 0) {
-				pv_error(state, "%s: %s", state->files.filename[file_idx], strerror(errno));
+				pv_error("%s: %s", state->files.filename[file_idx], strerror(errno));
 				state->status.exit_status |= PV_ERROREXIT_ACCESS;
 				break;
 			} else if (0 == numread) {
@@ -246,7 +254,7 @@ static off_t pv_calc_total_lines(pvstate_t state)
 		}
 
 		if (0 != lseek(fd, 0, SEEK_SET)) {
-			pv_error(state, "%s: %s", state->files.filename[file_idx], strerror(errno));
+			pv_error("%s: %s", state->files.filename[file_idx], strerror(errno));
 			state->status.exit_status |= PV_ERROREXIT_ACCESS;
 		}
 
@@ -288,10 +296,11 @@ int pv_next_file(pvstate_t state, unsigned int filenum, int oldfd)
 	struct stat osb;
 	int fd;
 	bool input_file_is_output;
+	char *next_filename;
 
 	if (oldfd >= 0) {
 		if (0 != close(oldfd)) {
-			pv_error(state, "%s: %s", _("failed to close file"), strerror(errno));
+			pv_error("%s: %s", _("failed to close file"), strerror(errno));
 			state->status.exit_status |= PV_ERROREXIT_TRANSITION;
 			return -1;
 		}
@@ -303,33 +312,42 @@ int pv_next_file(pvstate_t state, unsigned int filenum, int oldfd)
 		return -1;
 	}
 
-	if ((NULL == state->files.filename) || (0 == strcmp(state->files.filename[filenum], "-"))) {
+	next_filename = NULL;
+	if (NULL != state->files.filename) {
+		next_filename = state->files.filename[filenum];
+		if (NULL == next_filename) {
+			debug("%s: @%d, max %d", "unexpected null filename", filenum, state->files.file_count);
+			state->status.exit_status |= PV_ERROREXIT_TRANSITION;
+			return -1;
+		}
+	}
+
+	if ((NULL == next_filename) || (0 == strcmp(next_filename, "-"))) {
 		fd = STDIN_FILENO;
 	} else {
-		fd = open(state->files.filename[filenum], O_RDONLY);	/* flawfinder: ignore */
+		fd = open(next_filename, O_RDONLY);	/* flawfinder: ignore */
 		/*
 		 * flawfinder rationale: the input file list is under the
 		 * control of the operator by its nature, so we can't refuse
 		 * to open symlinks etc as that would be counterintuitive.
 		 */
 		if (fd < 0) {
-			pv_error(state, "%s: %s: %s",
-				 _("failed to read file"), state->files.filename[filenum], strerror(errno));
+			pv_error("%s: %s: %s", _("failed to read file"), next_filename, strerror(errno));
 			state->status.exit_status |= PV_ERROREXIT_ACCESS;
 			return -1;
 		}
 	}
 
 	if (0 != fstat(fd, &isb)) {
-		pv_error(state, "%s: %s: %s", _("failed to stat file"),
-			 NULL == state->files.filename ? "-" : state->files.filename[filenum], strerror(errno));
+		pv_error("%s: %s: %s", _("failed to stat file"),
+			 NULL == next_filename ? "-" : next_filename, strerror(errno));
 		(void) close(fd);
 		state->status.exit_status |= PV_ERROREXIT_ACCESS;
 		return -1;
 	}
 
 	if (0 != fstat(state->control.output_fd, &osb)) {
-		pv_error(state, "%s: %s", _("failed to stat output file"), strerror(errno));
+		pv_error("%s: %s", _("failed to stat output file"), strerror(errno));
 		(void) close(fd);
 		state->status.exit_status |= PV_ERROREXIT_ACCESS;
 		return -1;
@@ -351,8 +369,7 @@ int pv_next_file(pvstate_t state, unsigned int filenum, int oldfd)
 		input_file_is_output = false;
 
 	if (input_file_is_output) {
-		pv_error(state, "%s: %s", _("input file is output file"),
-			 NULL == state->files.filename ? "-" : state->files.filename[filenum]);
+		pv_error("%s: %s", _("input file is output file"), NULL == next_filename ? "-" : next_filename);
 		(void) close(fd);
 		state->status.exit_status |= PV_ERROREXIT_OUROBOROS;
 		return -1;

src/pv/format/averagerate.c

@@ -24,18 +24,18 @@ pvdisplay_bytecount_t pv_formatter_average_rate(pvformatter_args_t args)
 		return 0;
 
 	/*@-mustfreefresh@ */
-	if (args->state->control.numeric) {
+	if (args->control->numeric) {
 		/* numeric - raw value without suffix. */
 		(void) pv_snprintf(content, sizeof(content),
-				   "%.4Lf", ((args->state->control.bits ? 8.0 : 1.0) * args->state->calc.average_rate));
-	} else if (args->state->control.bits && !args->state->control.linemode) {
+				   "%.4Lf", ((args->control->bits ? 8.0 : 1.0) * args->calc->average_rate));
+	} else if (args->control->bits && !args->control->linemode) {
 		/* bits per second */
 		pv_describe_amount(content, sizeof(content),
-				   "(%s)", 8 * args->state->calc.average_rate, "", _("b/s"), args->display->count_type);
+				   "(%s)", 8 * args->calc->average_rate, "", _("b/s"), args->display->count_type);
 	} else {
 		/* bytes or lines per second */
 		pv_describe_amount(content,
-				   sizeof(content), "(%s)", args->state->calc.average_rate, _("/s"), _("B/s"),
+				   sizeof(content), "(%s)", args->calc->average_rate, _("/s"), _("B/s"),
 				   args->display->count_type);
 	}
 	/*@+mustfreefresh@ *//* splint: see above. */

src/pv/format/barstyle.c

@@ -44,7 +44,7 @@ static bool pv_barstyle(pvformatter_args_t args, pvbarstyle_t style, const char
 
 	memset(style, 0, sizeof(*style));
 
-	if (args->state->control.can_display_utf8 && 0 == strcmp(name, "block")) {
+	if (args->status->terminal_supports_utf8 && 0 == strcmp(name, "block")) {
 
 		style->style_id = 2;
 
@@ -58,7 +58,7 @@ static bool pv_barstyle(pvformatter_args_t args, pvbarstyle_t style, const char
 
 		return true;
 
-	} else if (args->state->control.can_display_utf8 && 0 == strcmp(name, "granular")) {
+	} else if (args->status->terminal_supports_utf8 && 0 == strcmp(name, "granular")) {
 
 		style->style_id = 3;
 
@@ -79,7 +79,7 @@ static bool pv_barstyle(pvformatter_args_t args, pvbarstyle_t style, const char
 
 		return true;
 
-	} else if (args->state->control.can_display_utf8 && 0 == strcmp(name, "shaded")) {
+	} else if (args->status->terminal_supports_utf8 && 0 == strcmp(name, "shaded")) {
 
 		style->style_id = 4;
 
@@ -164,7 +164,7 @@ pvdisplay_bytecount_t pv_formatter_bar_default(pvformatter_args_t args)
 {
 	if (0 == args->segment->parameter) {
 		const char *default_name;
-		default_name = args->state->control.default_bar_style;
+		default_name = args->control->default_bar_style;
 		/*@-branchstate@ */
 		if (NULL == default_name)
 			default_name = "plain";

src/pv/format/bufferpercent.c

@@ -23,16 +23,15 @@ pvdisplay_bytecount_t pv_formatter_buffer_percent(pvformatter_args_t args)
 	if (0 == args->buffer_size)
 		return 0;
 
-	if (args->state->transfer.buffer_size > 0) {
+	if (args->transfer->buffer_size > 0) {
 		double pct_used = pv_percentage((off_t)
-						(args->state->transfer.read_position -
-						 args->state->transfer.write_position),
+						(args->transfer->read_position - args->transfer->write_position),
 						(off_t)
-						(args->state->transfer.buffer_size));
+						(args->transfer->buffer_size));
 		(void) pv_snprintf(content, sizeof(content), "{%3.0f%%}", pct_used);
 	}
 #ifdef HAVE_SPLICE
-	if (args->state->transfer.splice_used)
+	if (args->transfer->splice_used)
 		(void) pv_snprintf(content, sizeof(content), "{%s}", "----");
 #endif
 

src/pv/format/bytes.c

@@ -26,20 +26,17 @@ pvdisplay_bytecount_t pv_formatter_bytes(pvformatter_args_t args)
 	content[0] = '\0';
 
 	/*@-mustfreefresh@ */
-	if (args->state->control.numeric) {
+	if (args->control->numeric) {
 		/* Numeric mode - raw values only, no suffix. */
 		(void) pv_snprintf(content, sizeof(content),
-				   "%lld",
-				   (long long) ((args->state->control.bits ? 8 : 1) *
-						args->state->transfer.transferred));
-	} else if (args->state->control.bits && !args->state->control.linemode) {
+				   "%lld", (long long) ((args->control->bits ? 8 : 1) * args->transfer->transferred));
+	} else if (args->control->bits && !args->control->linemode) {
 		pv_describe_amount(content, sizeof(content), "%s",
-				   (long double) (args->state->transfer.transferred * 8), "", _("b"),
+				   (long double) (args->transfer->transferred * 8), "", _("b"),
 				   args->display->count_type);
 	} else {
 		pv_describe_amount(content, sizeof(content), "%s",
-				   (long double) (args->state->transfer.transferred), "", _("B"),
-				   args->display->count_type);
+				   (long double) (args->transfer->transferred), "", _("B"), args->display->count_type);
 	}
 	/*@+mustfreefresh@ *//* splint - false positive from gettext(). */
 

src/pv/format/eta.c

@@ -24,16 +24,15 @@ pvdisplay_bytecount_t pv_formatter_eta(pvformatter_args_t args)
 	/*
 	 * Don't try to calculate this if the size is not known.
 	 */
-	if (args->state->control.size < 1)
+	if (args->control->size < 1)
 		return 0;
 
 	if (0 == args->buffer_size)
 		return 0;
 
 	eta =
-	    pv_seconds_remaining((args->state->transfer.transferred - args->display->initial_offset),
-				 args->state->control.size - args->display->initial_offset,
-				 args->state->calc.current_avg_rate);
+	    pv_seconds_remaining((args->transfer->transferred - args->display->initial_offset),
+				 args->control->size - args->display->initial_offset, args->calc->current_avg_rate);
 
 	/*
 	 * Bounds check, so we don't overrun the suffix buffer.  This means

src/pv/format/fineta.c

@@ -32,7 +32,7 @@ pvdisplay_bytecount_t pv_formatter_fineta(pvformatter_args_t args)
 	/*
 	 * Don't try to calculate this if the size is not known.
 	 */
-	if (args->state->control.size < 1)
+	if (args->control->size < 1)
 		return 0;
 
 	if (0 == args->buffer_size)
@@ -47,9 +47,8 @@ pvdisplay_bytecount_t pv_formatter_fineta(pvformatter_args_t args)
 	 * lookup.
 	 */
 
-	eta = pv_seconds_remaining(args->state->transfer.transferred - args->display->initial_offset,
-				   args->state->control.size - args->display->initial_offset,
-				   args->state->calc.current_avg_rate);
+	eta = pv_seconds_remaining(args->transfer->transferred - args->display->initial_offset,
+				   args->control->size - args->display->initial_offset, args->calc->current_avg_rate);
 
 	/* Bounds check - see pv_formatter_eta(). */
 	eta = pv_bound_long(eta, 0, (long) 360000000L);

src/pv/format/name.c

@@ -35,8 +35,8 @@ pvdisplay_bytecount_t pv_formatter_name(pvformatter_args_t args)
 	(void) pv_snprintf(string_format, sizeof(string_format), "%%%d.500s:", field_width);
 
 	content[0] = '\0';
-	if (args->state->control.name) {
-		(void) pv_snprintf(content, sizeof(content), string_format, args->state->control.name);
+	if (NULL != args->control->name) {
+		(void) pv_snprintf(content, sizeof(content), string_format, args->control->name);
 	}
 
 	return pv_formatter_segmentcontent(content, args);

src/pv/format/progressbar.c

@@ -74,28 +74,26 @@ static pvdisplay_bytecount_t pv_formatter_progress_knownsize(pvformatter_args_t
 
 	memset(after_bar, 0, sizeof(after_bar));
 
-	if (args->state->control.size > 0) {
+	if (args->control->size > 0) {
 		/* Percentage of data transferred. */
-		bar_percentage = (double) (args->state->calc.percentage);
+		bar_percentage = (double) (args->calc->percentage);
 		(void) pv_snprintf(after_bar, sizeof(after_bar), " %3ld%%", (int) bar_percentage);
 	} else {
 		/* Current rate vs max rate. */
 		bar_percentage = 0.0;
-		if (args->state->calc.rate_max > 0) {
-			bar_percentage =
-			    (double) (100.0 * args->state->calc.transfer_rate / args->state->calc.rate_max);
+		if (args->calc->rate_max > 0) {
+			bar_percentage = (double) (100.0 * args->calc->transfer_rate / args->calc->rate_max);
 		}
 
 		/*@-mustfreefresh@ */
-		if (args->state->control.bits && !args->state->control.linemode) {
+		if (args->control->bits && !args->control->linemode) {
 			/* bits per second */
 			pv_describe_amount(after_bar, sizeof(after_bar), "/%s",
-					   8.0 * args->state->calc.rate_max, "", _("b/s"), args->display->count_type);
+					   8.0 * args->calc->rate_max, "", _("b/s"), args->display->count_type);
 		} else {
 			/* bytes or lines per second */
 			pv_describe_amount(after_bar, sizeof(after_bar),
-					   "/%s", args->state->calc.rate_max, _("/s"), _("B/s"),
-					   args->display->count_type);
+					   "/%s", args->calc->rate_max, _("/s"), _("B/s"), args->display->count_type);
 		}
 		/*@+mustfreefresh@ *//* splint: see above about gettext(). */
 	}
@@ -247,7 +245,7 @@ static pvdisplay_bytecount_t pv_formatter_progress_unknownsize(pvformatter_args_
 	 * here we make values above 100 send the indicator back down again,
 	 * so it moves back and forth.
 	 */
-	indicator_position = args->state->calc.percentage;
+	indicator_position = args->calc->percentage;
 	if (indicator_position > 200.0)
 #if HAVE_FMOD
 		indicator_position = fmod(indicator_position, 200.0);
@@ -316,7 +314,7 @@ pvdisplay_bytecount_t pv_formatter_progress(pvformatter_args_t args)
 
 	if (0 == args->segment->parameter) {
 		const char *default_name;
-		default_name = args->state->control.default_bar_style;
+		default_name = args->control->default_bar_style;
 		/*@-branchstate@ */
 		if (NULL == default_name)
 			default_name = "plain";
@@ -328,7 +326,7 @@ pvdisplay_bytecount_t pv_formatter_progress(pvformatter_args_t args)
 	if (0 == args->buffer_size)
 		return 0;
 
-	if (args->state->control.size > 0 || args->state->control.rate_gauge) {
+	if (args->control->size > 0 || args->control->rate_gauge) {
 		/* Known size or rate gauge - bar with percentage. */
 		bytes = pv_formatter_progress_knownsize(args, content, sizeof(content), true, true, true);
 	} else {
@@ -354,7 +352,7 @@ pvdisplay_bytecount_t pv_formatter_progress_bar_only(pvformatter_args_t args)
 
 	if (0 == args->segment->parameter) {
 		const char *default_name;
-		default_name = args->state->control.default_bar_style;
+		default_name = args->control->default_bar_style;
 		/*@-branchstate@ */
 		if (NULL == default_name)
 			default_name = "plain";
@@ -366,7 +364,7 @@ pvdisplay_bytecount_t pv_formatter_progress_bar_only(pvformatter_args_t args)
 	if (0 == args->buffer_size)
 		return 0;
 
-	if (args->state->control.size > 0 || args->state->control.rate_gauge) {
+	if (args->control->size > 0 || args->control->rate_gauge) {
 		/* Known size or rate gauge - bar with percentage. */
 		bytes = pv_formatter_progress_knownsize(args, content, sizeof(content), false, true, false);
 	} else {
@@ -393,12 +391,12 @@ pvdisplay_bytecount_t pv_formatter_progress_amount_only(pvformatter_args_t args)
 	if (0 == args->buffer_size)
 		return 0;
 
-	if (args->state->control.numeric) {
+	if (args->control->numeric) {
 		/* Numeric mode - percentage as a rounded integer with no suffix. */
-		(void) pv_snprintf(content, sizeof(content), "%.0f", args->state->calc.percentage);
+		(void) pv_snprintf(content, sizeof(content), "%.0f", args->calc->percentage);
 		bytes = strlen(content);    /* flawfinder: ignore */
 		/* flawfinder: always \0-terminated by pv_snprintf() and the earlier memset(). */
-	} else if (args->state->control.size > 0 || args->state->control.rate_gauge) {
+	} else if (args->control->size > 0 || args->control->rate_gauge) {
 		/* Known size or rate gauge - percentage or rate. */
 		bytes = pv_formatter_progress_knownsize(args, content, sizeof(content), false, false, true);
 	} else {

src/pv/format/rate.c

@@ -26,20 +26,18 @@ pvdisplay_bytecount_t pv_formatter_rate(pvformatter_args_t args)
 		return 0;
 
 	/*@-mustfreefresh@ */
-	if (args->state->control.numeric) {
+	if (args->control->numeric) {
 		/* numeric - raw value without suffix. */
 		(void) pv_snprintf(content, sizeof(content),
-				   "%.4Lf",
-				   ((args->state->control.bits ? 8.0 : 1.0) * args->state->calc.transfer_rate));
-	} else if (args->state->control.bits && !args->state->control.linemode) {
+				   "%.4Lf", ((args->control->bits ? 8.0 : 1.0) * args->calc->transfer_rate));
+	} else if (args->control->bits && !args->control->linemode) {
 		/* bits per second */
 		pv_describe_amount(content, sizeof(content), "[%s]",
-				   8 * args->state->calc.transfer_rate, "", _("b/s"), args->display->count_type);
+				   8 * args->calc->transfer_rate, "", _("b/s"), args->display->count_type);
 	} else {
 		/* bytes or lines per second */
 		pv_describe_amount(content, sizeof(content),
-				   "[%s]", args->state->calc.transfer_rate, _("/s"), _("B/s"),
-				   args->display->count_type);
+				   "[%s]", args->calc->transfer_rate, _("/s"), _("B/s"), args->display->count_type);
 	}
 	/*@+mustfreefresh@ *//* splint: see above. */
 

src/pv/format/sgr.c

@@ -109,7 +109,7 @@ pvdisplay_bytecount_t pv_formatter_sgr(pvformatter_args_t args)
 
 	args->display->format_uses_colour = true;
 
-	if (!args->state->control.can_display_colour)
+	if (!args->status->terminal_supports_colour)
 		return 0;
 	if (NULL == args->segment->string_parameter)
 		return 0;

src/pv/format/timer.c

@@ -17,6 +17,7 @@
 pvdisplay_bytecount_t pv_formatter_timer(pvformatter_args_t args)
 {
 	char content[128];		 /* flawfinder: ignore - always bounded */
+	long double elapsed_seconds;
 
 	args->display->showing_timer = true;
 
@@ -25,22 +26,24 @@ pvdisplay_bytecount_t pv_formatter_timer(pvformatter_args_t args)
 	if (0 == args->buffer_size)
 		return 0;
 
+	elapsed_seconds = args->transfer->elapsed_seconds;
+
 	/*
 	 * Bounds check, so we don't overrun the prefix buffer.  This does
 	 * mean that the timer will stop at a 100,000 hours, but since
 	 * that's 11 years, it shouldn't be a problem.
 	 */
-	if (args->state->transfer.elapsed_seconds > (long double) 360000000.0L)
-		args->state->transfer.elapsed_seconds = (long double) 360000000.0L;
+	if (elapsed_seconds > (long double) 360000000.0L)
+		elapsed_seconds = (long double) 360000000.0L;
 
 	/* Also check it's not negative. */
-	if (args->state->transfer.elapsed_seconds < 0.0)
-		args->state->transfer.elapsed_seconds = 0.0;
+	if (elapsed_seconds < 0.0)
+		elapsed_seconds = 0.0;
 
-	if (args->state->control.numeric) {
+	if (args->control->numeric) {
 		/* Numeric mode - show the number of seconds, unformatted. */
-		(void) pv_snprintf(content, sizeof(content), "%.4Lf", args->state->transfer.elapsed_seconds);
-	} else if (args->state->transfer.elapsed_seconds > (long double) 86400.0L) {
+		(void) pv_snprintf(content, sizeof(content), "%.4Lf", elapsed_seconds);
+	} else if (elapsed_seconds > (long double) 86400.0L) {
 		/*
 		 * If the elapsed time is more than a day, include a day count as
 		 * well as hours, minutes, and seconds.
@@ -48,17 +51,15 @@ pvdisplay_bytecount_t pv_formatter_timer(pvformatter_args_t args)
 		(void) pv_snprintf(content,
 				   sizeof(content),
 				   "%ld:%02ld:%02ld:%02ld",
-				   ((long) (args->state->transfer.elapsed_seconds)) / 86400,
-				   (((long) (args->state->transfer.elapsed_seconds)) / 3600) %
-				   24, (((long) (args->state->transfer.elapsed_seconds)) / 60) % 60,
-				   ((long) (args->state->transfer.elapsed_seconds)) % 60);
+				   ((long) (elapsed_seconds)) / 86400,
+				   (((long) (elapsed_seconds)) / 3600) %
+				   24, (((long) (elapsed_seconds)) / 60) % 60, ((long) (elapsed_seconds)) % 60);
 	} else {
 		(void) pv_snprintf(content,
 				   sizeof(content),
 				   "%ld:%02ld:%02ld",
-				   ((long) (args->state->transfer.elapsed_seconds)) / 3600,
-				   (((long) (args->state->transfer.elapsed_seconds)) / 60) % 60,
-				   ((long) (args->state->transfer.elapsed_seconds)) % 60);
+				   ((long) (elapsed_seconds)) / 3600,
+				   (((long) (elapsed_seconds)) / 60) % 60, ((long) (elapsed_seconds)) % 60);
 	}
 
 	return pv_formatter_segmentcontent(content, args);

src/pv/number.c

@@ -160,7 +160,7 @@ off_t pv_getnum_size(const char *str, bool decimal_units)
 	fractional_part = fractional_part / fractional_divisor;
 	integral_part += fractional_part;
 
-	debug("%s [%s] = %ld", str, decimal_units ? "decimal" : "binary", integral_part);
+	debug("%s [%s] = %lld", str, decimal_units ? "decimal" : "binary", (long long) integral_part);
 
 	return integral_part;
 }

src/pv/signal.c

@@ -19,7 +19,7 @@
 #include <fcntl.h>
 
 #ifdef HAVE_IPC
-void pv_crs_needreinit(pvstate_t);
+void pv_crs_needreinit(pvcursorstate_t);
 #endif
 
 /*@null@*/ static pvstate_t pv_sig_state = NULL;
@@ -43,7 +43,7 @@ static void pv_sig_ensure_tty_tostop()
 		return;
 
 	/* Can't look at terminal flags if backgrounded. */
-	if (1 == pv_sig_state->flag.suspend_stderr)
+	if (1 == pv_sig_state->flags.suspend_stderr)
 		return;
 
 	if (0 != tcgetattr(STDERR_FILENO, &terminal_attributes)) {
@@ -52,13 +52,13 @@ static void pv_sig_ensure_tty_tostop()
 	}
 
 	/* Can't set terminal flags if backgrounded. */
-	if (1 == pv_sig_state->flag.suspend_stderr)
+	if (1 == pv_sig_state->flags.suspend_stderr)
 		return;
 
 	if (0 == (terminal_attributes.c_lflag & TOSTOP)) {
 		terminal_attributes.c_lflag |= TOSTOP;
 		if (0 == tcsetattr(STDERR_FILENO, TCSANOW, &terminal_attributes)) {
-			pv_sig_state->flag.clear_tty_tostop_on_exit = 1;
+			pv_sig_state->flags.clear_tty_tostop_on_exit = 1;
 			debug("%s", "set terminal TOSTOP attribute");
 #if HAVE_IPC
 			/*
@@ -95,11 +95,11 @@ static void pv_sig_ttou( /*@unused@ */  __attribute__((unused))
 	if (NULL == pv_sig_state)
 		return;
 
-	if (1 != pv_sig_state->flag.suspend_stderr) {
+	if (1 != pv_sig_state->flags.suspend_stderr) {
 		debug("%s", "SIGTTOU - suspending stderr");
-		pv_sig_state->flag.suspend_stderr = 1;
+		pv_sig_state->flags.suspend_stderr = 1;
 		/* Also tell the SIGCONT handler to do nothing next time. */
-		pv_sig_state->flag.skip_next_sigcont++;
+		pv_sig_state->flags.skip_next_sigcont++;
 		/* Raise an immediate SIGCONT to bring the rest of the pipeline back up. */
 		/*@-unrecog@ *//* splint doesn't know about killpg() */
 		if (0 != killpg(getpgrp(), SIGCONT)) {
@@ -142,19 +142,19 @@ static void pv_sig_cont( /*@unused@ */  __attribute__((unused))
 	if (NULL == pv_sig_state)
 		return;
 
-	if (pv_sig_state->flag.skip_next_sigcont > 0) {
+	if (pv_sig_state->flags.skip_next_sigcont > 0) {
 		debug("%s: %d", "SIGCONT received but ignored - current value of skip_next_sigcont",
-		      pv_sig_state->flag.skip_next_sigcont);
-		pv_sig_state->flag.skip_next_sigcont--;
+		      pv_sig_state->flags.skip_next_sigcont);
+		pv_sig_state->flags.skip_next_sigcont--;
 		return;
-	} else if (pv_sig_state->flag.skip_next_sigcont < 0) {
-		pv_sig_state->flag.skip_next_sigcont = 0;
+	} else if (pv_sig_state->flags.skip_next_sigcont < 0) {
+		pv_sig_state->flags.skip_next_sigcont = 0;
 		debug("%s", "skip_next_sigcont underrun cleared");
 	}
 
-	debug("%s: %d", "SIGCONT received - current value of suspend_stderr", pv_sig_state->flag.suspend_stderr);
+	debug("%s: %d", "SIGCONT received - current value of suspend_stderr", pv_sig_state->flags.suspend_stderr);
 
-	pv_sig_state->flag.terminal_resized = 1;
+	pv_sig_state->flags.terminal_resized = 1;
 
 	/*
 	 * We can only make the time adjustments if this SIGCONT followed a
@@ -182,19 +182,19 @@ static void pv_sig_cont( /*@unused@ */  __attribute__((unused))
 	 * Try resuming our use of stderr, if we had suspended it, but only
 	 * if we're now in the foreground.
 	 */
-	if (1 == pv_sig_state->flag.suspend_stderr) {
+	if (1 == pv_sig_state->flags.suspend_stderr) {
 		if (pv_in_foreground()) {
 			debug("%s", "SIGCONT - resuming stderr");
-			pv_sig_state->flag.suspend_stderr = 0;
+			pv_sig_state->flags.suspend_stderr = 0;
 		} else {
 			debug("%s", "SIGCONT but still in background - not resuming stderr");
 		}
 	}
 
-	if (0 == pv_sig_state->flag.suspend_stderr) {
+	if (0 == pv_sig_state->flags.suspend_stderr) {
 		pv_sig_ensure_tty_tostop();
 #ifdef HAVE_IPC
-		pv_crs_needreinit(pv_sig_state);
+		pv_crs_needreinit(&(pv_sig_state->cursor));
 #endif
 	}
 }
@@ -209,7 +209,7 @@ static void pv_sig_winch( /*@unused@ */  __attribute__((unused))
 {
 	if (NULL == pv_sig_state)
 		return;
-	pv_sig_state->flag.terminal_resized = 1;
+	pv_sig_state->flags.terminal_resized = 1;
 }
 #endif
 
@@ -222,7 +222,7 @@ static void pv_sig_term( /*@unused@ */  __attribute__((unused))
 {
 	if (NULL == pv_sig_state)
 		return;
-	pv_sig_state->flag.trigger_exit = 1;
+	pv_sig_state->flags.trigger_exit = 1;
 }
 
 
@@ -297,7 +297,7 @@ void pv_sig_init(pvstate_t state)
 
 	pv_sig_state = state;
 
-	pv_sig_state->flag.suspend_stderr = 0;
+	pv_sig_state->flags.suspend_stderr = 0;
 	pv_elapsedtime_zero(&(pv_sig_state->signal.tstp_time));
 	pv_elapsedtime_zero(&(pv_sig_state->signal.toffset));
 
@@ -320,7 +320,7 @@ void pv_sig_init(pvstate_t state)
 	 * Handle SIGTTOU by continuing with output switched off, so that we
 	 * can be stopped and backgrounded without messing up the terminal.
 	 */
-	pv_sig_state->flag.skip_next_sigcont = 0;
+	pv_sig_state->flags.skip_next_sigcont = 0;
 	sa.sa_handler = pv_sig_ttou;
 	(void) sigemptyset(&(sa.sa_mask));
 	sa.sa_flags = 0;
@@ -436,7 +436,7 @@ void pv_sig_fini( /*@unused@ */  __attribute__((unused)) pvstate_t state)
 #endif
 	(void) sigaction(SIGALRM, &(pv_sig_state->signal.old_sigalrm), NULL);
 
-	need_to_clear_tostop = (1 == pv_sig_state->flag.clear_tty_tostop_on_exit) ? true : false;
+	need_to_clear_tostop = (1 == pv_sig_state->flags.clear_tty_tostop_on_exit) ? true : false;
 
 	if (pv_sig_state->control.cursor) {
 #ifdef HAVE_IPC
@@ -477,7 +477,7 @@ void pv_sig_fini( /*@unused@ */  __attribute__((unused)) pvstate_t state)
 			}
 		}
 
-		pv_sig_state->flag.clear_tty_tostop_on_exit = 0;
+		pv_sig_state->flags.clear_tty_tostop_on_exit = 0;
 	}
 }
 
@@ -537,17 +537,17 @@ void pv_sig_checkbg(void)
 
 	next_check = time(NULL) + 1;
 
-	if (0 == pv_sig_state->flag.suspend_stderr)
+	if (0 == pv_sig_state->flags.suspend_stderr)
 		return;
 
 	if (!pv_in_foreground())
 		return;
 
 	debug("%s: %s", "pv_sig_checkbg", "attempting to resume stderr");
-	pv_sig_state->flag.suspend_stderr = 0;
+	pv_sig_state->flags.suspend_stderr = 0;
 
 	pv_sig_ensure_tty_tostop();
 #ifdef HAVE_IPC
-	pv_crs_needreinit(pv_sig_state);
+	pv_crs_needreinit(&(pv_sig_state->cursor));
 #endif
 }

src/pv/state.c

@@ -21,29 +21,140 @@
 #include <fcntl.h>
 
 
-/* alloc / realloc history buffer */
-static void pv_alloc_history(pvstate_t state)
+/*
+ * Allocate or reallocate the history buffer for calculating average
+ * transfer rate.
+ */
+static void pv_alloc_calc_history(pvtransfercalc_t calc)
 {
-	if (NULL != state->calc.history)
-		free(state->calc.history);
-	state->calc.history = NULL;
+	if (NULL != calc->history)
+		free(calc->history);
+	calc->history = NULL;
 
-	state->calc.history = calloc((size_t) (state->calc.history_len), sizeof(state->calc.history[0]));
-	if (NULL == state->calc.history) {
+	calc->history = calloc((size_t) (calc->history_len), sizeof(calc->history[0]));
+	if (NULL == calc->history) {
 		/*@-mustfreefresh@ */
 		/*
 		 * splint note: the gettext calls made by _() cause memory
 		 * leak warnings, but in this case it's unavoidable, and
 		 * mitigated by the fact we only translate each string once.
 		 */
-		fprintf(stderr, "%s: %s: %s\n", state->status.program_name,
-			_("history structure allocation failed"), strerror(errno));
+		pv_error("%s: %s", _("history structure allocation failed"), strerror(errno));
 		/*@+mustfreefresh@ */
 		return;
 	}
 
-	state->calc.history_first = state->calc.history_last = 0;
-	state->calc.history[0].elapsed_sec = 0.0;	/* to be safe, memset() not recommended for doubles */
+	calc->history_first = calc->history_last = 0;
+	calc->history[0].elapsed_sec = 0.0; /* to be safe, memset() not recommended for doubles */
+}
+
+
+/*
+ * Set the "calc" state sub-structure's history length appropriately for the
+ * given average rate window setting, allocate an appropriate history, and
+ * return the appropriate history interval to use.
+ */
+unsigned int pv_update_calc_average_rate_window(pvtransfercalc_t calc, unsigned int val)
+{
+	unsigned int history_interval;
+
+	if (val < 1)
+		val = 1;
+
+	if (val >= 20) {
+		calc->history_len = (size_t) (val / 5 + 1);
+		history_interval = 5;
+	} else {
+		calc->history_len = (size_t) (val + 1);
+		history_interval = 1;
+	}
+
+	pv_alloc_calc_history(calc);
+
+	return history_interval;
+}
+
+
+/*
+ * Clear the "calc" part of a state structure.
+ */
+void pv_reset_calc(pvtransfercalc_t calc)
+{
+	if (NULL == calc)
+		return;
+	/*
+	 * Explicitly set important floating point values to 0, as memset()
+	 * is not recommended for this.
+	 */
+	calc->transfer_rate = 0.0;
+	calc->average_rate = 0.0;
+	calc->prev_elapsed_sec = 0.0;
+	calc->prev_rate = 0.0;
+	calc->prev_trans = 0.0;
+	calc->current_avg_rate = 0.0;
+	calc->rate_min = 0.0;
+	calc->rate_max = 0.0;
+	calc->rate_sum = 0.0;
+	calc->ratesquared_sum = 0.0;
+	calc->measurements_taken = 0;
+	calc->prev_transferred = 0;
+	calc->percentage = 0.0;
+	calc->history_first = calc->history_last = 0;
+	if (NULL != calc->history) {
+		calc->history[0].elapsed_sec = 0.0;
+	}
+}
+
+
+/*
+ * Clear the "transfer" part of a state structure.
+ */
+void pv_reset_transfer(pvtransferstate_t transfer)
+{
+	if (NULL == transfer)
+		return;
+
+	transfer->elapsed_seconds = 0.0;
+	transfer->read_position = 0;
+	transfer->write_position = 0;
+	transfer->to_write = 0;
+	transfer->written = 0;
+	transfer->total_bytes_read = 0;
+	transfer->total_written = 0;
+	transfer->written_but_not_consumed = 0;
+	transfer->read_errors_in_a_row = 0;
+	transfer->last_read_skip_fd = 0;
+#ifdef HAVE_SPLICE
+	transfer->splice_failed_fd = -1;
+#endif				/* HAVE_SPLICE */
+
+	transfer->line_positions_length = 0;
+	transfer->line_positions_head = 0;
+	transfer->last_output_position = 0;
+	transfer->output_not_seekable = false;
+}
+
+
+/*
+ * Reset the calculated parts of the "flags" state structure.
+ */
+void pv_reset_flags(pvtransientflags_t flags)
+{
+	if (NULL == flags)
+		return;
+	flags->reparse_display = 1;
+}
+
+
+/*
+ * Reset the calculated parts of a "display" state structure.
+ */
+void pv_reset_display(pvdisplay_t display)
+{
+	if (NULL == display)
+		return;
+	display->initial_offset = 0;
+	display->output_produced = false;
 }
 
 
@@ -55,60 +166,21 @@ void pv_state_reset(pvstate_t state)
 	if (NULL == state)
 		return;
 
-	state->flag.reparse_display = 1;
+	pv_reset_flags(&(state->flags));
 	state->status.current_input_file = -1;
 
-	state->display.initial_offset = 0;
-	state->display.display_visible = false;
+	pv_reset_display(&(state->display));
+	pv_reset_display(&(state->extra_display));
 
-	state->extra_display.initial_offset = 0;
-	state->extra_display.display_visible = false;
-
-	/*
-	 * Explicitly set important floating point values to 0, as memset()
-	 * is not recommended for this.
-	 */
-	state->calc.transfer_rate = 0.0;
-	state->calc.average_rate = 0.0;
-	state->calc.prev_elapsed_sec = 0.0;
-	state->calc.prev_rate = 0.0;
-	state->calc.prev_trans = 0.0;
-	state->calc.current_avg_rate = 0.0;
-	state->calc.rate_min = 0.0;
-	state->calc.rate_max = 0.0;
-	state->calc.rate_sum = 0.0;
-	state->calc.ratesquared_sum = 0.0;
-	state->calc.measurements_taken = 0;
-	state->calc.prev_transferred = 0;
-	state->calc.percentage = 0.0;
-	state->calc.history_first = state->calc.history_last = 0;
-	if (NULL != state->calc.history) {
-		state->calc.history[0].elapsed_sec = 0.0;
-	}
-
-	state->transfer.elapsed_seconds = 0.0;
-	state->transfer.read_position = 0;
-	state->transfer.write_position = 0;
-	state->transfer.to_write = 0;
-	state->transfer.written = 0;
-	state->transfer.total_written = 0;
-	state->transfer.written_but_not_consumed = 0;
-	state->transfer.read_errors_in_a_row = 0;
-	state->transfer.last_read_skip_fd = 0;
-#ifdef HAVE_SPLICE
-	state->transfer.splice_failed_fd = -1;
-#endif				/* HAVE_SPLICE */
-
-	state->transfer.line_positions_length = 0;
-	state->transfer.line_positions_head = 0;
-	state->transfer.last_output_position = 0;
+	pv_reset_calc(&(state->calc));
+	pv_reset_transfer(&(state->transfer));
 }
 
 
 /*
  * Create a new state structure, and return it, or 0 (NULL) on error.
  */
-pvstate_t pv_state_alloc(const char *program_name)
+pvstate_t pv_state_alloc(void)
 {
 	pvstate_t state;
 
@@ -117,19 +189,7 @@ pvstate_t pv_state_alloc(const char *program_name)
 		return NULL;
 	memset(state, 0, sizeof(*state));
 
-	/* splint 3.1.2 thinks this is required for some reason. */
-	if (NULL != state->status.program_name) {
-		free(state->status.program_name);
-	}
-
-	state->status.program_name = pv_strdup(program_name);
-	if (NULL == state->status.program_name) {
-		free(state);
-		return NULL;
-	}
-
-	state->control.watch_pid = 0;
-	state->control.watch_fd = -1;
+	state->watchfd.count = 0;
 	state->control.output_fd = -1;
 #ifdef HAVE_IPC
 	state->cursor.shmid = -1;
@@ -157,6 +217,78 @@ pvstate_t pv_state_alloc(const char *program_name)
 }
 
 
+/*
+ * Free dynamic contents of a display structure.
+ */
+void pv_freecontents_display(pvdisplay_t display)
+{
+	if (NULL != display->display_buffer)
+		free(display->display_buffer);
+	display->display_buffer = NULL;
+}
+
+
+/*
+ * Free dynamic contents of a transfer state structure.
+ */
+void pv_freecontents_transfer(pvtransferstate_t transfer)
+{
+	/*@-keeptrans@ */
+	if (NULL != transfer->transfer_buffer)
+		free(transfer->transfer_buffer);
+	transfer->transfer_buffer = NULL;
+	/*@+keeptrans@ */
+	/* splint - explicitly freeing this structure, so free() here is OK. */
+
+	if (NULL != transfer->line_positions)
+		free(transfer->line_positions);
+	transfer->line_positions = NULL;
+}
+
+
+/*
+ * Free dynamic contents of a calculated transfer state structure.
+ */
+void pv_freecontents_calc(pvtransfercalc_t calc)
+{
+	if (NULL != calc->history)
+		free(calc->history);
+	calc->history = NULL;
+}
+
+
+/*
+ * 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.
  */
@@ -170,11 +302,12 @@ 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) {
-				fprintf(stderr, "%s: %s: %s\n", state->status.program_name,
-					NULL == state->control.output_name ? "(null)" : state->control.output_name,
-					strerror(errno));
+				pv_error("%s: %s",
+					 NULL == state->control.output_name ? "(null)" : state->control.output_name,
+					 strerror(errno));
 			}
 		}
 		state->control.output_fd = -1;
@@ -185,17 +318,8 @@ void pv_state_free(pvstate_t state)
 		state->control.output_name = NULL;
 	}
 
-	if (NULL != state->status.program_name)
-		free(state->status.program_name);
-	state->status.program_name = NULL;
-
-	if (NULL != state->display.display_buffer)
-		free(state->display.display_buffer);
-	state->display.display_buffer = NULL;
-
-	if (NULL != state->extra_display.display_buffer)
-		free(state->extra_display.display_buffer);
-	state->extra_display.display_buffer = NULL;
+	pv_freecontents_display(&(state->display));
+	pv_freecontents_display(&(state->extra_display));
 
 	if (NULL != state->control.name) {
 		free(state->control.name);
@@ -217,20 +341,9 @@ void pv_state_free(pvstate_t state)
 		state->control.extra_format_string = NULL;
 	}
 
-	/*@-keeptrans@ */
-	if (NULL != state->transfer.transfer_buffer)
-		free(state->transfer.transfer_buffer);
-	state->transfer.transfer_buffer = NULL;
-	/*@+keeptrans@ */
-	/* splint - explicitly freeing this structure, so free() here is OK. */
+	pv_freecontents_transfer(&(state->transfer));
 
-	if (NULL != state->transfer.line_positions)
-		free(state->transfer.line_positions);
-	state->transfer.line_positions = NULL;
-
-	if (NULL != state->calc.history)
-		free(state->calc.history);
-	state->calc.history = NULL;
+	pv_freecontents_calc(&(state->calc));
 
 	if (NULL != state->files.filename) {
 		unsigned int file_idx;
@@ -244,6 +357,15 @@ 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;
+	}
+
 	free(state);
 
 	return;
@@ -316,7 +438,7 @@ void pv_state_set_format(pvstate_t state, bool progress, bool timer, bool eta, b
 		state->control.name = pv_strdup(name);
 
 	/* Tell pv_format() that the format has changed. */
-	state->flag.reparse_display = 1;
+	state->flags.reparse_display = 1;
 }
 
 
@@ -406,6 +528,11 @@ 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;
@@ -531,27 +658,18 @@ void pv_state_extra_display_set(pvstate_t state, /*@null@ */ const char *val)
 	}
 }
 
-void pv_state_watch_pid_set(pvstate_t state, pid_t val)
-{
-	state->control.watch_pid = val;
-}
-
-void pv_state_watch_fd_set(pvstate_t state, int val)
-{
-	state->control.watch_fd = val;
-}
-
 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) {
-			fprintf(stderr, "%s: %s: %s\n", state->status.program_name,
-				NULL == state->control.output_name ? "(null)" : state->control.output_name,
-				strerror(errno));
+			pv_error("%s: %s",
+				 NULL == state->control.output_name ? "(null)" : state->control.output_name,
+				 strerror(errno));
 		}
 	}
 	if (NULL != state->control.output_name)
@@ -567,6 +685,22 @@ 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)
@@ -574,19 +708,12 @@ void pv_state_average_rate_window_set(pvstate_t state, unsigned int val)
 	if (val < 1)
 		val = 1;
 	state->control.average_rate_window = val;
-	if (val >= 20) {
-		state->calc.history_len = (size_t) (val / 5 + 1);
-		state->control.history_interval = 5;
-	} else {
-		state->calc.history_len = (size_t) (val + 1);
-		state->control.history_interval = 1;
-	}
-	pv_alloc_history(state);
+	state->control.history_interval = pv_update_calc_average_rate_window(&(state->calc), val);
 }
 
-void pv_state_set_can_display_utf8(pvstate_t state, bool val)
+void pv_state_set_terminal_supports_utf8(pvstate_t state, bool val)
 {
-	state->control.can_display_utf8 = val;
+	state->status.terminal_supports_utf8 = val;
 }
 
 /*
@@ -595,43 +722,91 @@ void pv_state_set_can_display_utf8(pvstate_t state, bool val)
 void pv_state_inputfiles(pvstate_t state, unsigned int input_file_count, const char **input_files)
 {
 	unsigned int file_idx;
+	/*@only@ */ nullable_string_t *new_array;
 
+	/* Free the old array and its contents, if there was one. */
 	if (NULL != state->files.filename) {
 		for (file_idx = 0; file_idx < state->files.file_count; file_idx++) {
-			/*@-unqualifiedtrans@ */
 			free(state->files.filename[file_idx]);
-			/*@+unqualifiedtrans@ */
-			/*
-			 * TODO: find a way to tell splint the array
-			 * contents are "only" and "null" as well as the
-			 * array itself.
-			 */
 		}
 		free(state->files.filename);
 		state->files.filename = NULL;
 		state->files.file_count = 0;
 	}
-	state->files.filename = calloc((size_t) (input_file_count + 1), sizeof(char *));
-	if (NULL == state->files.filename) {
+
+	/* Allocate an empty new array of the right size. */
+	new_array = calloc((size_t) (input_file_count + 1), sizeof(char *));
+	if (NULL == new_array) {
 		/*@-mustfreefresh@ *//* see similar _() issue above */
-		fprintf(stderr, "%s: %s: %s\n", state->status.program_name, _("file list allocation failed"),
-			strerror(errno));
+		pv_error("%s: %s", _("file list allocation failed"), strerror(errno));
 		/*@+mustfreefresh@ */
 		return;
 	}
+	state->files.filename = new_array;
+
+	/* Populate the new array with copies of the filenames. */
 	for (file_idx = 0; file_idx < input_file_count; file_idx++) {
-		/*@-nullstate@ */
-		state->files.filename[file_idx] = pv_strdup(input_files[file_idx]);
-		if (NULL == state->files.filename[file_idx]) {
+		/*@only@ */ char *new_string;
+		new_string = pv_strdup(input_files[file_idx]);
+		if (NULL == new_string) {
 			/*@-mustfreefresh@ *//* see similar _() issue above */
-			fprintf(stderr, "%s: %s: %s\n", state->status.program_name,
-				_("file list allocation failed"), strerror(errno));
+			pv_error("%s: %s", _("file list allocation failed"), strerror(errno));
 			/*@+mustfreefresh@ */
 			return;
 		}
+		state->files.filename[file_idx] = new_string;
 	}
 	state->files.file_count = input_file_count;
 }
 
-/*@+nullstate@*/
-/* splint: see unqualifiedtrans note by free() above. */
+/*
+ * Set the arrays of watchfd process IDs and file descriptors.
+ */
+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;
+
+	/* 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;
+	}
+	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) {
+		/*@-mustfreefresh@ *//* see similar _() issue above */
+		pv_error("%s: %s", _("process list 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;
+
+	/* Populate the new arrays 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];
+		if ((item_idx > 0) && (pids[item_idx] != pids[item_idx - 1]))
+			state->watchfd.multiple_pids = true;
+	}
+	state->watchfd.count = watchfd_count;
+
+	debug("%s=%d, %s=%s", "watchfd.count", state->watchfd.count, "multiple_pids",
+	      state->watchfd.multiple_pids ? "true" : "false");
+}

src/pv/transfer.c

@@ -300,41 +300,63 @@ static ssize_t pv__transfer_write_repeated(int fd, char *buf, size_t count, bool
  * returns 1.
  *
  * At most, the number of bytes read will be the number of bytes remaining
- * in the input buffer.  If state->control.rate_limit is >0, and/or "allowed" is >0,
- * then the maximum number of bytes read will be the number remaining unused
- * in the input buffer or the value of "allowed", whichever is smaller.
+ * in the input buffer, capped to the number of bytes left until
+ * state->control.size is reached if state->control.stop_at_size is true.
+ * If state->control.rate_limit is >0, and/or "max_to_write" is >0, and
+ * splice() is used, then the maximum number of bytes read will be further
+ * capped to the value of "max_to_write", since splice() writes as well as
+ * reads.
  *
- * If splice() was successfully used, sets state->transfer.splice_used to true; if it
- * failed, then state->transfer.splice_failed_fd is updated to the current fd so
- * splice() won't be tried again until the next input file.
+ * If splice() was successfully used, sets state->transfer.splice_used to
+ * true; if it failed, then state->transfer.splice_failed_fd is updated to
+ * the current fd so splice() won't be tried again until the next input
+ * file.
  *
- * Updates state->transfer.read_position by the number of bytes read, unless splice()
- * was used, in which case it does not since there's nothing in the buffer
- * (and it also adds the bytes to state->transfer.written since they've been written
- * to the output).
+ * Updates state->transfer.read_position by the number of bytes read, unless
+ * splice() was used, in which case it does not since there's nothing in the
+ * buffer (and it also adds the bytes to state->transfer.written since
+ * they've been written to the output).
  *
- * On read error, updates state->status.exit_status, and if allowed by
+ * Also increases state->transfer.total_bytes_read by the number of bytes
+ * read, regardless of whether splice() was used, since total_bytes_read is
+ * what it says it is, rather than being a buffer indicator.
+ *
+ * On read error, updates state->status.exit_status, and if max_to_write by
  * state->control.skip_errors, tries to skip past the problem.
  *
  * If the end of the input file is reached or the error is unrecoverable,
  * sets *eof_in to true.  If all data in the buffer has been written at this
  * point, then also sets *eof_out to true.
  */
-static int pv__transfer_read(pvstate_t state, int fd, bool *eof_in, bool *eof_out, off_t allowed)
+static int pv__transfer_read(pvstate_t state, int fd, bool *eof_in, bool *eof_out, off_t max_to_write)
 {
 	bool do_not_skip_errors;
 	size_t bytes_can_read;
 	off_t amount_to_skip, amount_skipped, orig_offset, skip_offset;
 	ssize_t nread;
-#ifdef HAVE_SPLICE
-	size_t bytes_to_splice;
-#endif				/* HAVE_SPLICE */
 
 	do_not_skip_errors = false;
 	if (0 == state->control.skip_errors)
 		do_not_skip_errors = true;
 
 	bytes_can_read = state->transfer.buffer_size - state->transfer.read_position;
+
+	/*
+	 * Don't read past control.size if stop_at_size is true (issue
+	 * #166).
+	 *
+	 * This isn't workable in line mode.
+	 */
+	if (state->control.stop_at_size && !state->control.linemode) {
+		off_t bytes_remaining_to_read = state->control.size - state->transfer.total_bytes_read;
+		if ((long long) bytes_can_read > (long long) bytes_remaining_to_read) {
+			debug("%lld > (%lld-%lld=%lld): %s", (long long) bytes_can_read,
+			      (long long) (state->control.size), (long long) state->transfer.total_bytes_read,
+			      (long long) bytes_remaining_to_read, "truncating for stop-at-size");
+			bytes_can_read = (size_t) bytes_remaining_to_read;
+		}
+	}
+
 	nread = 0;
 
 #ifdef HAVE_SPLICE
@@ -342,8 +364,10 @@ static int pv__transfer_read(pvstate_t state, int fd, bool *eof_in, bool *eof_ou
 	if ((!state->control.linemode) && (!state->control.no_splice)
 	    && (fd != state->transfer.splice_failed_fd)
 	    && (0 == state->transfer.to_write)) {
-		if (state->control.rate_limit > 0 || allowed != 0) {
-			bytes_to_splice = (size_t) allowed;
+		size_t bytes_to_splice;
+
+		if (state->control.rate_limit > 0 || max_to_write != 0) {
+			bytes_to_splice = (size_t) max_to_write;
 		} else {
 			bytes_to_splice = bytes_can_read;
 		}
@@ -365,6 +389,7 @@ static int pv__transfer_read(pvstate_t state, int fd, bool *eof_in, bool *eof_ou
 			 */
 		} else if (nread > 0) {
 			state->transfer.written = nread;
+			state->transfer.total_bytes_read += nread;
 #ifdef HAVE_FDATASYNC
 			if (state->control.sync_after_write) {
 				/*
@@ -430,6 +455,8 @@ static int pv__transfer_read(pvstate_t state, int fd, bool *eof_in, bool *eof_ou
 #else
 		state->transfer.read_position += nread;
 #endif				/* HAVE_SPLICE */
+		/* Update the counter of all bytes read so far. */
+		state->transfer.total_bytes_read += nread;
 		return 1;
 	}
 
@@ -460,7 +487,7 @@ static int pv__transfer_read(pvstate_t state, int fd, bool *eof_in, bool *eof_ou
 	 * reached the end of this file.
 	 */
 	if (do_not_skip_errors) {
-		pv_error(state, "%s: %s: %s", pv_current_file_name(state), _("read failed"), strerror(errno));
+		pv_error("%s: %s: %s", pv_current_file_name(state), _("read failed"), strerror(errno));
 		*eof_in = true;
 		if (state->transfer.write_position >= state->transfer.read_position) {
 			*eof_out = true;
@@ -476,7 +503,7 @@ static int pv__transfer_read(pvstate_t state, int fd, bool *eof_in, bool *eof_ou
 
 	if (!state->transfer.read_error_warning_shown) {
 		/*@-compdef@ */
-		pv_error(state, "%s: %s: %s", pv_current_file_name(state), _("warning: read errors detected"),
+		pv_error("%s: %s: %s", pv_current_file_name(state), _("warning: read errors detected"),
 			 strerror(errno));
 		/*@+compdef@ */
 		/* splint - see previous pv_current_file_name() call. */
@@ -492,7 +519,7 @@ static int pv__transfer_read(pvstate_t state, int fd, bool *eof_in, bool *eof_ou
 	 */
 	if (0 > orig_offset) {
 		/*@-compdef@ */
-		pv_error(state, "%s: %s: %s", pv_current_file_name(state), _("file is not seekable"), strerror(errno));
+		pv_error("%s: %s: %s", pv_current_file_name(state), _("file is not seekable"), strerror(errno));
 		/*@+compdef@ */
 		/* splint - see previous pv_current_file_name() calls. */
 		*eof_in = true;
@@ -569,8 +596,7 @@ static int pv__transfer_read(pvstate_t state, int fd, bool *eof_in, bool *eof_ou
 		 */
 		if (EINVAL != errno) {
 			/*@-compdef@ */
-			pv_error(state,
-				 "%s: %s: %s", pv_current_file_name(state), _("failed to seek past error"),
+			pv_error("%s: %s: %s", pv_current_file_name(state), _("failed to seek past error"),
 				 strerror(errno));
 			/*@+compdef@ */
 			/* splint - see previous pv_current_file_name() calls. */
@@ -588,7 +614,7 @@ static int pv__transfer_read(pvstate_t state, int fd, bool *eof_in, bool *eof_ou
 		state->transfer.read_position += amount_skipped;
 		if (state->control.skip_errors < 2) {
 			/*@-compdef@ */
-			pv_error(state, "%s: %s: %ld - %ld (%ld %s)",
+			pv_error("%s: %s: %ld - %ld (%ld %s)",
 				 pv_current_file_name(state),
 				 _("skipped past read error"), (long) orig_offset, (long) skip_offset,
 				 (long) amount_skipped, _("B"));
@@ -629,9 +655,12 @@ 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(state, "%s", _("no transfer buffer allocated"));
+		pv_error("%s", _("no transfer buffer allocated"));
 		state->status.exit_status |= PV_ERROREXIT_MEMORY;
 		*eof_out = true;
 		state->transfer.written = -1;
@@ -645,6 +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
@@ -673,7 +748,7 @@ static int pv__transfer_write(pvstate_t state, bool *eof_in, bool *eof_out, long
 		      (long) (new_timer.it_value.tv_usec));
 
 		if (0 != setitimer(ITIMER_REAL, &new_timer, NULL)) {
-			pv_error(state, "%s: %s", _("failed to set interval timer"), strerror(errno));
+			pv_error("%s: %s", _("failed to set interval timer"), strerror(errno));
 		}
 
 #else				/* ! HAVE_SETITIMER */
@@ -699,7 +774,7 @@ static int pv__transfer_write(pvstate_t state, bool *eof_in, bool *eof_out, long
 		new_timer.it_value.tv_sec = 0;
 		new_timer.it_value.tv_usec = 0;
 		if (0 != setitimer(ITIMER_REAL, &new_timer, NULL)) {
-			pv_error(state, "%s: %s", _("failed to clear interval timer"), strerror(errno));
+			pv_error("%s: %s", _("failed to clear interval timer"), strerror(errno));
 		}
 
 		/*@+unrecog@ */
@@ -709,6 +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;
 
@@ -741,7 +819,7 @@ static int pv__transfer_write(pvstate_t state, bool *eof_in, bool *eof_out, long
 				state->transfer.line_positions =
 				    calloc((size_t) (state->transfer.line_positions_capacity), sizeof(off_t));
 				if (NULL == state->transfer.line_positions) {
-					pv_error(state, "%s: %s", _("line position buffer allocation failed"),
+					pv_error("%s: %s", _("line position buffer allocation failed"),
 						 strerror(errno));
 				}
 				/*@+mustfreeonly@ */
@@ -910,12 +988,12 @@ static int pv__transfer_write(pvstate_t state, bool *eof_in, bool *eof_out, long
 	if (EPIPE == write_errno) {
 		*eof_in = true;
 		*eof_out = true;
-		state->flag.pipe_closed = 1;
+		state->flags.pipe_closed = 1;
 		debug("%s", "SIGPIPE received - setting pipe_closed");
 		return 0;
 	}
 
-	pv_error(state, "%s: %s", _("write failed"), strerror(write_errno));
+	pv_error("%s: %s", _("write failed"), strerror(write_errno));
 	state->status.exit_status |= PV_ERROREXIT_TRANSFER;
 	*eof_out = true;
 	state->transfer.written = -1;
@@ -940,7 +1018,7 @@ static int pv__transfer_write(pvstate_t state, bool *eof_in, bool *eof_out, long
 /*@only@*/
 static char *pv__allocate_aligned_buffer(int outfd, int infd, size_t target_size)
 {
-	char *newptr;
+	void *newptr;
 
 #if defined(HAVE_FPATHCONF) && defined(HAVE_POSIX_MEMALIGN) && defined(_PC_REC_XFER_ALIGN)
 	long input_alignment, output_alignment, min_alignment;
@@ -1054,7 +1132,7 @@ ssize_t pv_transfer(pvstate_t state, int fd, bool *eof_in, bool *eof_out, off_t
 		state->transfer.transfer_buffer =
 		    pv__allocate_aligned_buffer(state->control.output_fd, fd, state->control.target_buffer_size + 32);
 		if (NULL == state->transfer.transfer_buffer) {
-			pv_error(state, "%s: %s", _("buffer allocation failed"), strerror(errno));
+			pv_error("%s: %s", _("buffer allocation failed"), strerror(errno));
 			state->status.exit_status |= PV_ERROREXIT_MEMORY;
 			return -1;
 		}
@@ -1156,8 +1234,7 @@ ssize_t pv_transfer(pvstate_t state, int fd, bool *eof_in, bool *eof_out, off_t
 		 * Any other error is a problem and we must report back.
 		 */
 		/*@-compdef@ */
-		pv_error(state, "%s: %s: %d: %s", pv_current_file_name(state), _("select call failed"), n,
-			 strerror(errno));
+		pv_error("%s: %s: %d: %s", pv_current_file_name(state), _("select call failed"), n, strerror(errno));
 		/*@+compdef@ */
 		/* splint - see previous pv_current_file_name() calls. */
 

src/pv/watchpid.c

@@ -96,7 +96,7 @@ int pv_watchfd_info(pvstate_t state, pvwatchfd_t info, bool automatic)
 
 	if (kill(info->watch_pid, 0) != 0) {
 		if (!automatic)
-			pv_error(state, "%s %u: %s", _("pid"), info->watch_pid, strerror(errno));
+			pv_error("%s %u: %s", _("pid"), info->watch_pid, strerror(errno));
 		return 1;
 	}
 
@@ -105,8 +105,7 @@ int pv_watchfd_info(pvstate_t state, pvwatchfd_t info, bool automatic)
 				  PROC_PIDFDVNODEPATHINFO, &vnodeInfo,
 				  PROC_PIDFDVNODEPATHINFO_SIZE);
 	if (size != PROC_PIDFDVNODEPATHINFO_SIZE) {
-		pv_error(state, "%s %u: %s %d: %s",
-			 _("pid"), info->watch_pid, _("fd"), info->watch_fd, strerror(errno));
+		pv_error("%s %u: %s %d: %s", _("pid"), info->watch_pid, _("fd"), info->watch_fd, strerror(errno));
 		return 3;
 	}
 
@@ -116,7 +115,7 @@ int pv_watchfd_info(pvstate_t state, pvwatchfd_t info, bool automatic)
 
 	if (!(0 == stat(info->file_fdpath, &(info->sb_fd)))) {
 		if (!automatic)
-			pv_error(state, "%s %u: %s %d: %s: %s",
+			pv_error("%s %u: %s %d: %s: %s",
 				 _("pid"),
 				 info->watch_pid, _("fd"), info->watch_fd, info->file_fdpath, strerror(errno));
 		return 3;
@@ -124,7 +123,7 @@ int pv_watchfd_info(pvstate_t state, pvwatchfd_t info, bool automatic)
 
 	if (!filesize(info)) {
 		if (!automatic)
-			pv_error(state, "%s %u: %s %d: %s: %s",
+			pv_error("%s %u: %s %d: %s: %s",
 				 _("pid"),
 				 info->watch_pid,
 				 _("fd"), info->watch_fd, info->file_fdpath, _("not a regular file or block device"));
@@ -162,7 +161,7 @@ int pv_watchfd_info(pvstate_t state, pvwatchfd_t info, bool automatic)
 
 	if (kill(info->watch_pid, 0) != 0) {
 		if (!automatic)
-			pv_error(state, "%s %u: %s", _("pid"), info->watch_pid, strerror(errno));
+			pv_error("%s %u: %s", _("pid"), info->watch_pid, strerror(errno));
 		return 1;
 	}
 	(void) pv_snprintf(info->file_fdinfo, PV_SIZEOF_FILE_FDINFO,
@@ -180,7 +179,7 @@ int pv_watchfd_info(pvstate_t state, pvwatchfd_t info, bool automatic)
 		 * and then only if it's a block device - see filesize().
 		 */
 		if (!automatic)
-			pv_error(state, "%s %u: %s %d: %s",
+			pv_error("%s %u: %s %d: %s",
 				 _("pid"), info->watch_pid, _("fd"), info->watch_fd, strerror(errno));
 		return 2;
 	}
@@ -188,7 +187,7 @@ int pv_watchfd_info(pvstate_t state, pvwatchfd_t info, bool automatic)
 	if (!((0 == stat(info->file_fd, &(info->sb_fd)))
 	      && (0 == lstat(info->file_fd, &(info->sb_fd_link))))) {
 		if (!automatic)
-			pv_error(state, "%s %u: %s %d: %s: %s",
+			pv_error("%s %u: %s %d: %s: %s",
 				 _("pid"),
 				 info->watch_pid, _("fd"), info->watch_fd, info->file_fdpath, strerror(errno));
 		return 3;
@@ -198,7 +197,7 @@ int pv_watchfd_info(pvstate_t state, pvwatchfd_t info, bool automatic)
 
 	if (!filesize(info)) {
 		if (!automatic)
-			pv_error(state, "%s %u: %s %d: %s: %s",
+			pv_error("%s %u: %s %d: %s: %s",
 				 _("pid"),
 				 info->watch_pid,
 				 _("fd"), info->watch_fd, info->file_fdpath, _("not a regular file or block device"));
@@ -297,7 +296,7 @@ static int pidfds(pvstate_t state, unsigned int pid, struct proc_fdinfo **fds, i
 {
 	int size_needed = proc_pidinfo(pid, PROC_PIDLISTFDS, 0, 0, 0);
 	if (size_needed == -1) {
-		pv_error(state, "%s: unable to list pid fds: %s", _("pid"), strerror(errno));
+		pv_error("%s: unable to list pid fds: %s", _("pid"), strerror(errno));
 		return -1;
 	}
 
@@ -305,7 +304,7 @@ static int pidfds(pvstate_t state, unsigned int pid, struct proc_fdinfo **fds, i
 
 	*fds = (struct proc_fdinfo *) malloc(size_needed);
 	if (*fds == NULL) {
-		pv_error(state, "%s: alloc failed: %s", _("pid"), strerror(errno));
+		pv_error("%s: alloc failed: %s", _("pid"), strerror(errno));
 		return -1;
 	}
 	memset(*fds, 0, size_needed);
@@ -354,6 +353,10 @@ static bool extend_info_array(int *array_length_ptr, pvwatchfd_t * info_array_pt
 		return false;
 	}
 
+	new_info_array[array_length - 1].unused = true;
+
+	debug("%s", "extended info array");
+
 	*info_array_ptr = new_info_array;
 	*array_length_ptr = array_length;
 	return true;
@@ -364,25 +367,76 @@ static bool extend_info_array(int *array_length_ptr, pvwatchfd_t * info_array_pt
 /*@+compdef @ */
 
 
+/*
+ * Reset calculated values in the given watchfd info structure.
+ */
+void pv_reset_watchfd(pvwatchfd_t info)
+{
+	if (NULL == info)
+		return;
+	pv_reset_calc(&(info->calc));
+	pv_reset_transfer(&(info->transfer));
+	pv_reset_flags(&(info->flags));
+	pv_reset_display(&(info->display));
+}
+
+
+/*
+ * Free dynamically allocated areas in the given watchfd info structure.
+ */
+void pv_freecontents_watchfd(pvwatchfd_t info)
+{
+	if (NULL == info)
+		return;
+	pv_freecontents_calc(&(info->calc));
+	pv_freecontents_transfer(&(info->transfer));
+	pv_freecontents_display(&(info->display));
+}
+
+
+/*
+ * Comparison function for qsort, to compare two pvwatchfd_s structures.
+ */
+static int pv_compare_watchfd(const void *a, const void *b)
+{
+	int fd_a, fd_b;
+
+	fd_a = 0;
+	fd_b = 0;
+	if (NULL != a)
+		fd_a = ((pvwatchfd_t) a)->watch_fd;
+	if (NULL != b)
+		fd_b = ((pvwatchfd_t) b)->watch_fd;
+
+	if (fd_a < fd_b)
+		return -1;
+	if (fd_a > fd_b)
+		return 1;
+	return 0;
+}
+
+
 /*
  * Scan the given process and update the arrays with any new 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
  * read, or 2 for a memory allocation error.
  */
-int pv_watchpid_scanfds(pvstate_t state,
-			pid_t watch_pid, int *array_length_ptr, pvwatchfd_t * info_array_ptr, int *fd_to_idx)
+int pv_watchpid_scanfds(pvstate_t state, pid_t watch_pid, int watch_fd, int *array_length_ptr,
+			pvwatchfd_t * info_array_ptr)
 {
 	int array_length = 0;
 	struct pvwatchfd_s *info_array = NULL;
+	bool changes_made;
 
 #ifdef __APPLE__
 	struct proc_fdinfo *fd_infos = NULL;
 	int fd_infos_count = 0;
 
 	if (pidfds(state, watch_pid, &fd_infos, &fd_infos_count) != 0) {
-		pv_error(state, "%s: pidfds failed", _("pid"));
+		pv_error("%s: pidfds failed", _("pid"));
 		return -1;
 	}
 #else
@@ -401,18 +455,19 @@ int pv_watchpid_scanfds(pvstate_t state,
 	array_length = *array_length_ptr;
 	info_array = *info_array_ptr;
 
+	changes_made = false;
+
 #ifdef __APPLE__
 	if (fd_infos_count < 1) {
-		pv_error(state, "%s: no fds found", _("pid"));
+		pv_error("%s: no fds found", _("pid"));
 		return -1;
 	}
 	for (int i = 0; i < fd_infos_count; i++) {
 #else
 	while ((d = readdir(dptr)) != NULL) {
 #endif
-		int fd, check_idx, use_idx, rc;
+		int fd, check_idx, found_idx, use_idx, rc;
 		off_t position_now;
-		const char *use_format_string;
 
 		fd = -1;
 #ifdef __APPLE__
@@ -422,24 +477,45 @@ int pv_watchpid_scanfds(pvstate_t state,
 			continue;
 #endif
 
-		/* Skip if the fd is outside the array. */
-		if ((fd < 0) || (fd >= FD_SETSIZE))
+		/* Skip if the fd is negative. */
+		if (fd < 0)
+			continue;
+
+		/* If a watch_fd was specified, skip if this isn't it. */
+		if (watch_fd >= 0 && watch_fd != fd)
 			continue;
 
 		/*
 		 * Skip if this fd is already known to us.
 		 */
-		if (fd_to_idx[fd] != -1) {
-			continue;
+		found_idx = -1;
+		for (check_idx = 0; check_idx < array_length; 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;
 		}
+		if (found_idx >= 0)
+			continue;
 
 		/*
-		 * See if there's an empty slot we can re-use. An empty slot
-		 * has a watch_pid of 0.
+		 * See if there's an empty slot we can re-use.
 		 */
 		use_idx = -1;
 		for (check_idx = 0; check_idx < array_length; check_idx++) {
-			if (info_array[check_idx].watch_pid == 0) {
+			if (info_array[check_idx].unused) {
 				use_idx = check_idx;
 				break;
 			}
@@ -458,69 +534,26 @@ int pv_watchpid_scanfds(pvstate_t state,
 
 		debug("%s: %d => index %d", "found new fd", fd, use_idx);
 
+		changes_made = true;
+
 		/*
 		 * Initialise the details of this new entry.
 		 */
 		memset(&(info_array[use_idx]), 0, sizeof(info_array[use_idx]));
 
+		pv_reset_watchfd(&(info_array[use_idx]));
 		info_array[use_idx].watch_pid = watch_pid;
 		info_array[use_idx].watch_fd = fd;
-
-		/* Allocate new display state. */
-		/*@-mustfreeonly@ *//* splint - this is not a leak, this is a new entry. */
-		info_array[use_idx].state = pv_state_alloc(state->status.program_name);
-		/*@+mustfreeonly@ */
-		if (NULL == info_array[use_idx].state)
-			return 2;
-
-		/* Copy the main status.cwd value to the new state. */
-		memcpy(&(info_array[use_idx].state->status.cwd), &(state->status.cwd), sizeof(state->status.cwd));	/* flawfinder: ignore */
-		/* flawfinder: bounded to destination object size. */
+		info_array[use_idx].closed = false;
+		info_array[use_idx].unused = false;
+		info_array[use_idx].displayable = true;
 
 		/*
-		 * Copy over all the control values, blanking out the
-		 * dynamically allocated strings, and setting the default
-		 * format (fixed buffer) to the required format string
-		 * instead of allocating a new dynamic format string for the
-		 * copy (so there's less dynamic allocation going on).
+		 * Set the average rate window so that a new history buffer
+		 * is allocated for this state.
 		 */
-		memcpy(&(info_array[use_idx].state->control), &(state->control), sizeof(state->control));	/* flawfinder: ignore */
-		/* flawfinder: bounded to destination object size. */
-		/*@-mustfreeonly@ *//* splint - this is not a leak, this is a new entry. */
-		info_array[use_idx].state->control.name = NULL;
-		info_array[use_idx].state->control.format_string = NULL;
-		info_array[use_idx].state->control.output_name = NULL;
-		info_array[use_idx].state->control.default_bar_style = NULL;
-		/*@+mustfreeonly@ */
-		info_array[use_idx].state->control.default_format[0] = '\0';
-		use_format_string =
-		    NULL != state->control.format_string ? state->control.format_string : state->control.default_format;
-		if (NULL != use_format_string)
-			(void) pv_snprintf(info_array[use_idx].state->control.default_format, PV_SIZEOF_DEFAULT_FORMAT,
-					   "%.510s", use_format_string);
-
-		/*
-		 * Duplicate the default bar style string, if there is one.
-		 */
-		if (NULL != state->control.default_bar_style) {
-			pv_state_default_bar_style_set(info_array[use_idx].state, state->control.default_bar_style);
-		}
-
-		/*
-		 * Copy over all the display values, blanking out the
-		 * dynamically allocated parts as above; then set the
-		 * average rate window so that a new history buffer is
-		 * allocated for this state.
-		 */
-		memcpy(&(info_array[use_idx].state->display), &(state->display), sizeof(state->display));	/* flawfinder: ignore */
-		/* flawfinder: bounded to destination object size. */
-		/*@-mustfreeonly@ *//* splint - this is not a leak, this is a new entry. */
-		info_array[use_idx].state->display.display_buffer = NULL;
-		info_array[use_idx].state->display.display_buffer_size = 0;
-		info_array[use_idx].state->calc.history = NULL;
-		info_array[use_idx].state->calc.history_len = 0;
-		/*@+mustfreeonly@ */
-		pv_state_average_rate_window_set(info_array[use_idx].state, state->control.average_rate_window);
+		(void) pv_update_calc_average_rate_window(&(info_array[use_idx].calc),
+							  state->control.average_rate_window);
 
 #ifdef __APPLE__
 		if (fd_infos[i].proc_fdtype != PROX_FDTYPE_VNODE) {
@@ -528,70 +561,33 @@ int pv_watchpid_scanfds(pvstate_t state,
 		}
 #endif
 		/* Retrieve the details of this file descriptor. */
-		rc = pv_watchfd_info(state, &(info_array[use_idx]), true);
+		rc = pv_watchfd_info(state, &(info_array[use_idx]), -1 == watch_fd ? true : false);
 
 		/*
 		 * Lookup failed - mark this slot as being free for re-use.
 		 */
 		if ((rc != 0) && (rc != 4)) {
 			debug("%s %d: %s: %d", "fd", fd, "lookup failed - marking slot for re-use", use_idx);
-			info_array[use_idx].watch_pid = 0;
-			if (NULL != info_array[use_idx].state)
-				pv_state_free(info_array[use_idx].state);
-			/*@-mustfreeonly@ *//* not a leak - we've just free()d it. */
-			info_array[use_idx].state = NULL;
-			/*@+mustfreeonly@ */
+			pv_freecontents_watchfd(&(info_array[use_idx]));
+			info_array[use_idx].unused = true;
+			info_array[use_idx].displayable = false;
 			continue;
 		}
 
-		fd_to_idx[fd] = use_idx;
-
 		/*
-		 * Not displayable - set fd to -1 so the main loop doesn't
-		 * show it.
+		 * Not displayable - mark it as such so the main loop
+		 * doesn't show it.
 		 */
 		if (rc != 0) {
 			debug("%s %d: %s", "fd", fd, "marking as not displayable");
-			info_array[use_idx].watch_fd = -1;
-		}
-
-		/* NULL check on the state - skip if not usable. */
-		if (NULL == info_array[use_idx].state) {
-			debug("%s %d: %s", "fd", fd, "state is NULL - marking as not displayable");
-			info_array[use_idx].watch_fd = -1;
-			continue;
-		}
-
-		/*
-		 * Set the displayed size appropriately; if the size is 0,
-		 * or not known, remove %e and %I from the state's default
-		 * format string so that neither estimated time remaining
-		 * nor estimated time of completion are displayed.
-		 */
-		info_array[use_idx].state->control.size = info_array[use_idx].size;
-		if (info_array[use_idx].state->control.size < 1) {
-			char *fmt;
-			while (NULL != (fmt = strstr(info_array[use_idx].state->control.default_format, "%e"))) {
-				debug("%s", "zero size - removing estimated time remaining");
-				/* strlen-1 here to include trailing \0 */
-				memmove(fmt, fmt + 2, strlen(fmt) - 1);	/* flawfinder: ignore */
-				info_array[use_idx].state->flag.reparse_display = 1;
-			}
-			while (NULL != (fmt = strstr(info_array[use_idx].state->control.default_format, "%I"))) {
-				debug("%s", "zero size - removing estimated completion time");
-				/* strlen-1 here to include trailing \0 */
-				memmove(fmt, fmt + 2, strlen(fmt) - 1);	/* flawfinder: ignore */
-				info_array[use_idx].state->flag.reparse_display = 1;
-			}
-			/* flawfinder: default_format is always \0-terminated. */
+			info_array[use_idx].displayable = false;
 		}
 
 		/* Set the info display_name appropriately. */
 		pv_watchpid_setname(state, &(info_array[use_idx]));
 
-		/* Carry the display_name through to the display state, and reparse. */
-		pv_state_name_set(info_array[use_idx].state, info_array[use_idx].display_name);
-		info_array[use_idx].state->flag.reparse_display = 1;
+		/* Force the display to be re-parsed. */
+		info_array[use_idx].flags.reparse_display = 1;
 
 		pv_elapsedtime_read(&(info_array[use_idx].start_time));
 
@@ -600,11 +596,11 @@ int pv_watchpid_scanfds(pvstate_t state,
 		 * display), if known, so that ETA and so on are calculated
 		 * correctly.
 		 */
-		info_array[use_idx].state->display.initial_offset = 0;
+		info_array[use_idx].display.initial_offset = 0;
 		info_array[use_idx].position = 0;
 		position_now = pv_watchfd_position(&(info_array[use_idx]));
 		if (position_now >= 0) {
-			info_array[use_idx].state->display.initial_offset = position_now;
+			info_array[use_idx].display.initial_offset = position_now;
 			info_array[use_idx].position = position_now;
 		}
 	}
@@ -616,6 +612,14 @@ int pv_watchpid_scanfds(pvstate_t state,
 	(void) closedir(dptr);
 #endif
 
+	/*
+	 * If any changes were made (i.e. new file descriptors were found),
+	 * sort the array so that file descriptors are always displayed in
+	 * ascending numerical order.
+	 */
+	if (changes_made && NULL != info_array && array_length > 1)
+		qsort(info_array, (size_t) array_length, sizeof(info_array[0]), pv_compare_watchfd);
+
 	return 0;
 }
 
@@ -624,6 +628,9 @@ int pv_watchpid_scanfds(pvstate_t state,
  * Set the display name for the given watched file descriptor, truncating at
  * the relevant places according to the current screen width.
  *
+ * If more than one distinct PID is being watched, include the PID in the
+ * name as well as the file descriptor number.
+ *
  * If the file descriptor is pointing to a file under the current working
  * directory, show its relative path, not the full path.
  */
@@ -646,20 +653,36 @@ void pv_watchpid_setname(pvstate_t state, pvwatchfd_t info)
 	}
 
 	max_display_length = (int) (state->control.width / 2) - 6;
+	if (state->watchfd.multiple_pids)
+		max_display_length -= 9;
 	if (max_display_length >= (int) path_length) {
-		(void) pv_snprintf(info->display_name,
-				   PV_SIZEOF_DISPLAY_NAME, "%4d:%.498s", info->watch_fd, file_fdpath);
+		if (state->watchfd.multiple_pids) {
+			(void) pv_snprintf(info->display_name,
+					   PV_SIZEOF_DISPLAY_NAME, "%8d:%4d:%.498s", (int) (info->watch_pid),
+					   info->watch_fd, file_fdpath);
+		} else {
+			(void) pv_snprintf(info->display_name,
+					   PV_SIZEOF_DISPLAY_NAME, "%4d:%.498s", info->watch_fd, file_fdpath);
+		}
 	} else {
 		int prefix_length, suffix_length;
 
 		prefix_length = max_display_length / 4;
 		suffix_length = max_display_length - prefix_length - 3;
 
-		(void) pv_snprintf(info->display_name,
-				   PV_SIZEOF_DISPLAY_NAME,
-				   "%4d:%.*s...%.*s",
-				   info->watch_fd, prefix_length,
-				   file_fdpath, suffix_length, file_fdpath + path_length - suffix_length);
+		if (state->watchfd.multiple_pids) {
+			(void) pv_snprintf(info->display_name,
+					   PV_SIZEOF_DISPLAY_NAME,
+					   "%8d:%4d:%.*s...%.*s",
+					   (int) (info->watch_pid), info->watch_fd, prefix_length,
+					   file_fdpath, suffix_length, file_fdpath + path_length - suffix_length);
+		} else {
+			(void) pv_snprintf(info->display_name,
+					   PV_SIZEOF_DISPLAY_NAME,
+					   "%4d:%.*s...%.*s",
+					   info->watch_fd, prefix_length,
+					   file_fdpath, suffix_length, file_fdpath + path_length - suffix_length);
+		}
 	}
 
 	debug("%s: %d: [%s]", "set name for fd", info->watch_fd, info->display_name);

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/Transfer_-_--stop-at-size_reads.test

@@ -0,0 +1,75 @@
+#!/bin/sh
+#
+# Make sure -S stops reading at the given size.
+#
+# See https://codeberg.org/ivarch/pv/issues/166
+
+# 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'}"
+
+printf '%s\n' 'abcdefghi' | (
+"${testSubject}" -qSs5 > "${workFile1}"
+cat > "${workFile2}"
+)
+
+# pv should have read 5 bytes and put them into workFile1.
+pvOutput="$(cat "${workFile1}")"
+if ! test "${pvOutput}" = 'abcde'; then
+	echo "expected pv to write [abcde], got [${pvOutput}]"
+	exit 1
+fi
+
+# cat should have read the remaining bytes and put them into workFile2.
+catOutput="$(cat "${workFile2}")"
+if ! test "${catOutput}" = 'fghi'; then
+	echo "expected cat to write [fghi], got [${catOutput}]"
+	exit 1
+fi
+
+# Now repeat the test with -X to make sure there's no over-read there either.
+
+printf '%s\n' 'abcdefghi' | (
+"${testSubject}" -qXSs5 > "${workFile1}"
+cat > "${workFile2}"
+)
+
+# pv should have read 5 bytes and put nothing into workFile1.
+pvOutput="$(cat "${workFile1}")"
+if test -s "${workFile1}"; then
+	echo "with -X, expected pv to write nothing, got [${pvOutput}]"
+	exit 1
+fi
+
+# cat should have read the remaining bytes and put them into workFile2.
+catOutput="$(cat "${workFile2}")"
+if ! test "${catOutput}" = 'fghi'; then
+	echo "with pv -X, expected cat to write [fghi], got [${catOutput}]"
+	exit 1
+fi
+
+# Test again with -C to ensure that it works with splice turned off.
+
+printf '%s\n' 'abcdefghi' | (
+"${testSubject}" -qCSs5 > "${workFile1}"
+cat > "${workFile2}"
+)
+
+# pv should have read 5 bytes and put them into workFile1.
+pvOutput="$(cat "${workFile1}")"
+if ! test "${pvOutput}" = 'abcde'; then
+	echo "with -C, expected pv to write [abcde], got [${pvOutput}]"
+	exit 1
+fi
+
+# cat should have read the remaining bytes and put them into workFile2.
+catOutput="$(cat "${workFile2}")"
+if ! test "${catOutput}" = 'fghi'; then
+	echo "with pv -C, expected cat to write [fghi], got [${catOutput}]"
+	exit 1
+fi
+
+exit 0