import openbsd z* scripts and manuals.
This commit is contained in:
mrg
parent
a92ed9fb69
commit
5ddb436023
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@ -0,0 +1,177 @@
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#!/bin/sh -
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#
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# $OpenBSD: gzexe,v 1.3 2003/08/05 18:22:17 deraadt Exp $
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#
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# Copyright (c) 2003 Otto Moerbeek <otto@drijf.net>
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#
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# Permission to use, copy, modify, and distribute this software for any
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# purpose with or without fee is hereby granted, provided that the above
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# copyright notice and this permission notice appear in all copies.
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#
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# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
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# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
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# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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#
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# The number of lines plus one in the on-the-fly decompression script
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lines=19
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# A simple string to recognize already compressed files
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magic="# compressed by gzexe"
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# Write the decompression script to stdout
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header () {
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typeset prog tmp
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# first section needs variable expansion, second not
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cat <<- EOF
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#!/bin/sh -
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$magic
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lines=$lines
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EOF
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cat <<- 'EOF'
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prog=`/usr/bin/basename "$0"`
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tmp=`/usr/bin/mktemp -d /tmp/gzexeXXXXXXXXXX` || {
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/bin/echo "$prog: cannot create tmp dir"; exit 1
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}
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trap '/bin/rm -rf "$tmp"' 0
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if /usr/bin/tail +$lines "$0" |
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/usr/bin/gzip -dc > "$tmp/$prog" 2> /dev/null; then
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/bin/chmod u+x "$tmp/$prog"
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"$tmp/$prog" ${1+"$@"}
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ret=$?
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else
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/bin/echo "$prog: cannot decompress $0"
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ret=1
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fi
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exit $ret
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EOF
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}
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# Test if a file is compressed by checking the magic line
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compressed () {
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test "X`sed -n 2p "$1" 2> /dev/null`" = "X$magic"
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}
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# Decompress a file
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decompress () {
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tmp=`mktemp /tmp/gzexeXXXXXXXXXX` || {
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echo "$prog: cannot create tmp file"
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return 1
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}
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if ! cp "$1" "$tmp"; then
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echo "$prog: cannot copy $1 to $tmp"
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rm -f "$tmp"
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return 1
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fi
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if ! tail +$lines "$tmp" | gzip -vdc > "$1"; then
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echo "$prog: cannot decompress $1"
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cp "$tmp" "$1"
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rm -f "$tmp"
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return 1
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fi
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}
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# Perform some sanity checks on the file
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check () {
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if test ! -e "$1"; then
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echo "$prog: cannot compress non-existing file $1"
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return 1
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fi
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if test ! -f "$1"; then
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echo "$prog: cannot compress non-regular file $1"
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return 1
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fi
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case `basename "$1"` in
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sh | mktemp | rm | echo | tail | gzip | chmod)
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echo "$prog: cannot compress $1, I depend on it"
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return 1
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esac
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if test ! -x "$1"; then
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echo "$prog: cannot compress $1, it is not executable"
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return 1
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fi
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if test -u "$1" -o -g "$1"; then
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echo "$prog: cannot compress $1, it has an s bit set"
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return 1
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fi
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}
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# Compress a file
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compress () {
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tmp=`mktemp /tmp/gzexeXXXXXXXXXX` || {
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echo "$prog: cannot create tmp file"
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return 1
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}
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if ! cp "$1" "$tmp"; then
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echo "$prog: cannot copy $1 to $tmp"
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rm -f "$tmp"
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return 1
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fi
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if ! cp "$1" "$1"~; then
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echo "$prog: cannot create backup copy $1~"
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rm -f "$1"~ "$tmp"
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return 1
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fi
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# Use cp to overwrite the existing file preserving mode and owner
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# if possible. If the file is not writable, this will produce an
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# error.
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if header "$1" > "$tmp" && gzip -vc "$1" >> "$tmp"; then
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if ! cp "$tmp" "$1"; then
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echo "$prog: cannot copy $tmp to $1"
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rm -f "$tmp"
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return 1
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fi
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else
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echo "$prog: cannot compress $1"
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rm -f "$1"~ "$tmp"
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return 1
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fi
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}
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# Is the -d flag specified?
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dflag=
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# Return value
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rc=0
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if test "X$1" = X-d; then
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dflag=1
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shift
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fi
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prog=`basename "$0"`
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USAGE="usage: $prog [-d] file ..."
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if test $# -eq 0; then
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echo $USAGE
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exit 1
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fi
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while test $# -ne 0; do
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if test $dflag; then
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if ! compressed "$1"; then
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echo "$prog: $1 is not compressed"
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rc=1;
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elif ! decompress "$1"; then
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rc=$?
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fi
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else
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if compressed "$1"; then
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echo "$prog: $1 is already compressed"
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rc=1;
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elif ! check "$1" || ! compress "$1"; then
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rc=$?
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fi
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fi
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shift
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done
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exit $rc
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@ -0,0 +1,71 @@
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.\" $OpenBSD: gzexe.1,v 1.1 2003/07/31 07:32:47 otto Exp $
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.\"
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.\" Copyright (c) 2003 Otto Moerbeek <otto@drijf.net>
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.\"
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.\" Permission to use, copy, modify, and distribute this software for any
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.\" purpose with or without fee is hereby granted, provided that the above
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.\" copyright notice and this permission notice appear in all copies.
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.\"
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.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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.\"
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.Dd July 30, 2003
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.Dt GZEXE 1
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.Os
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.Sh NAME
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.Nm gzexe
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.Nd create auto-decompressing executables
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.Sh SYNOPSIS
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.Nm gzexe
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.Op Fl d
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.Ar
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.Sh DESCRIPTION
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The
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.Nm
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utility uses
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.Xr gzip 1
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to compress executables, producing executables that decompress on-the-fly
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when executed.
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This saves disk space, at the cost of slower execution times.
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The original executables are saved by copying each of them to a file with
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the same name with a
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.Sq ~
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suffix appended.
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After verifying that the compressed executables work as expected, the backup
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files can be removed.
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.Pp
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The options are as follows:
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.Bl -tag -width Ds
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.It Fl d
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Decompress executables previously compressed by
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.Nm gzexe .
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.El
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.Pp
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The
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.Nm
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program refuses to compress non-regular or non-executable files,
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files with a setuid or setgid bit set, files that are already
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compressed using
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.Nm
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or programs it needs to perform on-the-fly decompression:
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.Xr sh 1 ,
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.Xr mktemp 1 ,
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.Xr rm 1 ,
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.Xr echo 1 ,
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.Xr tail 1 ,
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.Xr gzip 1
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and
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.Xr chmod 1 .
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.Sh SEE ALSO
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.Xr gzip 1
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.Sh CAVEATS
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The
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.Nm
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utility replaces files by overwriting them with the generated
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compressed executable.
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To be able to do this, it is required that the original files are writable.
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@ -0,0 +1,108 @@
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#!/bin/sh -
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#
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# $OpenBSD: zdiff,v 1.2 2003/07/29 07:42:44 otto Exp $
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#
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# Copyright (c) 2003 Todd C. Miller <Todd.Miller@courtesan.com>
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#
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# Permission to use, copy, modify, and distribute this software for any
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# purpose with or without fee is hereby granted, provided that the above
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# copyright notice and this permission notice appear in all copies.
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#
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# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
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# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
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# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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#
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# Sponsored in part by the Defense Advanced Research Projects
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# Agency (DARPA) and Air Force Research Laboratory, Air Force
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# Materiel Command, USAF, under agreement number F39502-99-1-0512.
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#
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# Set $prog based on $0
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case $0 in
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*cmp) prog=cmp
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;;
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*) prog=diff
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;;
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esac
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USAGE="usage: z$prog [options] file1 [file2]"
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# Pull out any command line flags so we can pass them to diff/cmp
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# XXX - assumes there is no optarg
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flags=
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while test $# -ne 0; do
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case "$1" in
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--)
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shift
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break
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;;
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-*)
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flags="$flags $1"
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shift
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;;
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*)
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break
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;;
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esac
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done
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if [ $# -eq 1 ]; then
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# One file given, compare compressed to uncompressed
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files="$1"
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case "$1" in
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*[._-][Zz])
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files="${1%??}"
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;;
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*[._-]gz)
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files="${1%???}"
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;;
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*.t[ag]z)
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files="${1%??}"ar
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;;
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*) echo "z$prog: unknown suffix" 1>&2
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exit 1
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esac
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compress -cdfq "$1" | $prog $flags - "$files"
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status=$?
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elif [ $# -eq 2 ]; then
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# Two files given, compare the two uncompressing as needed
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case "$1" in
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*[._-][Zz]|*[._-]gz|*.t[ag]z)
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files=-
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filt="compress -cdfq $1"
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;;
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*)
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files="$1"
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;;
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esac
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case "$2" in
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*[._-][Zz]|*[._-]gz|*.t[ag]z)
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if [ "$files" = "-" ]; then
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tmp=`mktemp -t z$prog.XXXXXXXXXX` || exit 1
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trap "rm -f $tmp" 0 1 2 3 13 15
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compress -cdfq "$2" > $tmp
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files="$files $tmp"
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else
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files="$files -"
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filt="compress -cdfq $2"
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fi
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;;
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*)
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files="$files $2"
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;;
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esac
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if [ -n "$filt" ]; then
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$filt | $prog $flags $files
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else
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$prog $flags $files
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fi
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status=$?
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else
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echo "$USAGE" 1>&2
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exit 1
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fi
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exit $status
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@ -0,0 +1,106 @@
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.\" $OpenBSD: zdiff.1,v 1.2 2003/07/13 17:39:14 millert Exp $
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.\"
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.\" Copyright (c) 2003 Todd C. Miller <Todd.Miller@courtesan.com>
|
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.\"
|
||||
.\" Permission to use, copy, modify, and distribute this software for any
|
||||
.\" purpose with or without fee is hereby granted, provided that the above
|
||||
.\" copyright notice and this permission notice appear in all copies.
|
||||
.\"
|
||||
.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
||||
.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
||||
.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
||||
.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
.\"
|
||||
.\" Sponsored in part by the Defense Advanced Research Projects
|
||||
.\" Agency (DARPA) and Air Force Research Laboratory, Air Force
|
||||
.\" Materiel Command, USAF, under agreement number F39502-99-1-0512.
|
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.\"
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.Dd June 23, 2003
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.Dt ZDIFF 1
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.Os
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.Sh NAME
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||||
.Nm zcmp ,
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.Nm zdiff
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.Nd compare compressed files
|
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.Sh SYNOPSIS
|
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.Nm zcmp
|
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.Op Ar options
|
||||
.Ar file
|
||||
.Op Ar file2
|
||||
.Nm zdiff
|
||||
.Op Ar options
|
||||
.Ar file
|
||||
.Op Ar file2
|
||||
.Sh DESCRIPTION
|
||||
.Nm zcmp
|
||||
and
|
||||
.Nm zdiff
|
||||
are filters that invoke
|
||||
.Xr cmp 1
|
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or
|
||||
.Xr diff 1
|
||||
respectively to compare compressed files.
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||||
Such files generally have a
|
||||
.Dq Z
|
||||
or
|
||||
.Dq gz
|
||||
extension (both the
|
||||
.Xr compress 1
|
||||
and
|
||||
.Xr gzip 1
|
||||
formats are supported).
|
||||
Any
|
||||
.Ar options
|
||||
that are specified are passed to
|
||||
.Xr cmp 1
|
||||
or
|
||||
.Xr diff 1 .
|
||||
.Pp
|
||||
If only
|
||||
.Ar file1
|
||||
is specified, it is compared against a file with the same name, but
|
||||
with the extension removed.
|
||||
When both
|
||||
.Ar file1
|
||||
or
|
||||
.Ar file2
|
||||
are specified, either file may be compressed.
|
||||
.Sh ENVIRONMENT
|
||||
.Bl -tag -width "TMPDIR"
|
||||
.It Ev TMPDIR
|
||||
Directory in which to place temporary files.
|
||||
If unset,
|
||||
.Pa /tmp
|
||||
is used.
|
||||
.El
|
||||
.Sh FILES
|
||||
.Bl -tag -width "/tmp/zdiff.XXXXXXXXXX" -compact
|
||||
.It Pa /tmp/zcmp.XXXXXXXXXX
|
||||
Temporary file for
|
||||
.Nm zcmp .
|
||||
.It Pa /tmp/zdiff.XXXXXXXXXX
|
||||
Temporary file for
|
||||
.Nm zdiff .
|
||||
.El
|
||||
.Sh SEE ALSO
|
||||
.Xr cmp 1 ,
|
||||
.Xr compress 1 ,
|
||||
.Xr diff 1
|
||||
.Sh CAVEATS
|
||||
.Nm zcmp
|
||||
and
|
||||
.Nm zdiff
|
||||
rely solely on the file extension to determine what is, or is not,
|
||||
a compressed file.
|
||||
Consequently, the following are not supported as arguments:
|
||||
.Bl -dash
|
||||
.It
|
||||
directories
|
||||
.It
|
||||
device special files
|
||||
.It
|
||||
filenames indicating the standard input ("-")
|
||||
.El
|
||||
|
|
@ -0,0 +1,52 @@
|
|||
#!/bin/sh -
|
||||
#
|
||||
# $OpenBSD: zforce,v 1.2 2003/08/05 18:22:17 deraadt Exp $
|
||||
#
|
||||
# Copyright (c) 2003 Otto Moerbeek <otto@drijf.net>
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software for any
|
||||
# purpose with or without fee is hereby granted, provided that the above
|
||||
# copyright notice and this permission notice appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
||||
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
#
|
||||
prog=`basename $0`
|
||||
USAGE="usage: $prog file ..."
|
||||
if test $# -eq 0; then
|
||||
echo $USAGE
|
||||
exit 1
|
||||
fi
|
||||
|
||||
ret=0
|
||||
|
||||
while test $# -ne 0; do
|
||||
case "$1" in
|
||||
*[._-]gz)
|
||||
shift
|
||||
;;
|
||||
*.t[ag]z)
|
||||
shift
|
||||
;;
|
||||
*)
|
||||
if file "$1" |
|
||||
grep -q "gzip compressed data" 2> /dev/null
|
||||
then
|
||||
n="$1".gz
|
||||
if mv "$1" "$n" 2> /dev/null; then
|
||||
echo "$1" -- renamed to "$n"
|
||||
else
|
||||
ret=1
|
||||
echo $prog: cannot rename "$1" to "$n"
|
||||
fi
|
||||
fi
|
||||
shift
|
||||
;;
|
||||
esac
|
||||
done
|
||||
exit $ret
|
||||
|
|
@ -0,0 +1,51 @@
|
|||
.\" $OpenBSD: zforce.1,v 1.1 2003/07/29 11:50:09 otto Exp $
|
||||
.\"
|
||||
.\" Copyright (c) 2003 Otto Moerbeek <otto@drijf.net>
|
||||
.\"
|
||||
.\" Permission to use, copy, modify, and distribute this software for any
|
||||
.\" purpose with or without fee is hereby granted, provided that the above
|
||||
.\" copyright notice and this permission notice appear in all copies.
|
||||
.\"
|
||||
.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
||||
.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
||||
.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
||||
.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
.\"
|
||||
.Dd July 29, 2003
|
||||
.Dt ZFORCE 1
|
||||
.Os
|
||||
.Sh NAME
|
||||
.Nm zforce
|
||||
.Nd force gzip files to have a .gz suffix
|
||||
.Sh SYNOPSIS
|
||||
.Nm zforce
|
||||
.Ar
|
||||
.Sh DESCRIPTION
|
||||
The
|
||||
.Nm
|
||||
utility renames
|
||||
.Xr gzip 1
|
||||
files to have a
|
||||
.Sq .gz
|
||||
suffix, so that
|
||||
.Xr gzip 1
|
||||
will not compress them twice.
|
||||
This can be useful if file names were truncated during a file transfer.
|
||||
Files that have an existing
|
||||
.Sq .gz ,
|
||||
.Sq -gz ,
|
||||
.Sq _gz ,
|
||||
.Sq .tgz
|
||||
or
|
||||
.Sq .taz
|
||||
suffix, or that have not been compressed by
|
||||
.Xr gzip 1 ,
|
||||
are ignored.
|
||||
.Sh SEE ALSO
|
||||
.Xr gzip 1
|
||||
.Sh CAVEATS
|
||||
.Nm
|
||||
overwrites existing files without warning.
|
||||
|
|
@ -0,0 +1,72 @@
|
|||
#!/bin/sh -
|
||||
#
|
||||
# $OpenBSD: zmore,v 1.4 2003/07/29 07:42:45 otto Exp $
|
||||
#
|
||||
# Copyright (c) 2003 Todd C. Miller <Todd.Miller@courtesan.com>
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software for any
|
||||
# purpose with or without fee is hereby granted, provided that the above
|
||||
# copyright notice and this permission notice appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
||||
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
#
|
||||
# Sponsored in part by the Defense Advanced Research Projects
|
||||
# Agency (DARPA) and Air Force Research Laboratory, Air Force
|
||||
# Materiel Command, USAF, under agreement number F39502-99-1-0512.
|
||||
#
|
||||
|
||||
# Pull out any command line flags so we can pass them to more/less
|
||||
flags=
|
||||
while test $# -ne 0; do
|
||||
case "$1" in
|
||||
--)
|
||||
shift
|
||||
break
|
||||
;;
|
||||
-*)
|
||||
flags="$flags $1"
|
||||
shift
|
||||
;;
|
||||
*)
|
||||
break
|
||||
;;
|
||||
esac
|
||||
done
|
||||
|
||||
# No files means read from stdin
|
||||
if [ $# -eq 0 ]; then
|
||||
compress -cdfq 2>&1 | ${PAGER-more} $flags
|
||||
exit 0
|
||||
fi
|
||||
|
||||
oterm=`stty -g 2>/dev/null`
|
||||
while test $# -ne 0; do
|
||||
compress -cdfq "$1" 2>&1 | ${PAGER-more} $flags
|
||||
prev="$1"
|
||||
shift
|
||||
if tty -s && test -n "$oterm" -a $# -gt 0; then
|
||||
#echo -n "--More--(Next file: $1)"
|
||||
echo -n "$prev (END) - Next: $1 "
|
||||
trap "stty $oterm 2>/dev/null" 0 1 2 3 13 15
|
||||
stty cbreak -echo 2>/dev/null
|
||||
REPLY=`dd bs=1 count=1 2>/dev/null`
|
||||
stty $oterm 2>/dev/null
|
||||
trap - 0 1 2 3 13 15
|
||||
echo
|
||||
case "$REPLY" in
|
||||
s)
|
||||
shift
|
||||
;;
|
||||
e|q)
|
||||
break
|
||||
;;
|
||||
esac
|
||||
fi
|
||||
done
|
||||
exit 0
|
||||
|
|
@ -0,0 +1,92 @@
|
|||
.\" $OpenBSD: zmore.1,v 1.3 2003/06/23 21:00:48 deraadt Exp $
|
||||
.\"
|
||||
.\" Copyright (c) 2003 Todd C. Miller <Todd.Miller@courtesan.com>
|
||||
.\"
|
||||
.\" Permission to use, copy, modify, and distribute this software for any
|
||||
.\" purpose with or without fee is hereby granted, provided that the above
|
||||
.\" copyright notice and this permission notice appear in all copies.
|
||||
.\"
|
||||
.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
||||
.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
||||
.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
||||
.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
.\"
|
||||
.\" Sponsored in part by the Defense Advanced Research Projects
|
||||
.\" Agency (DARPA) and Air Force Research Laboratory, Air Force
|
||||
.\" Materiel Command, USAF, under agreement number F39502-99-1-0512.
|
||||
.\"
|
||||
.Dd June 23, 2003
|
||||
.Dt ZMORE 1
|
||||
.Os
|
||||
.Sh NAME
|
||||
.Nm zmore
|
||||
.Nd view compressed files on a crt
|
||||
.Sh SYNOPSIS
|
||||
.Nm zmore
|
||||
.Op Ar flags
|
||||
.Op Ar file ...
|
||||
.Sh DESCRIPTION
|
||||
.Nm
|
||||
is a filter that allows the viewing of files compressed with Lempel-Ziv
|
||||
encoding.
|
||||
Such files generally have a
|
||||
.Dq Z
|
||||
or
|
||||
.Dq gz
|
||||
extension (both the
|
||||
.Xr compress 1
|
||||
and
|
||||
.Xr gzip 1
|
||||
formats are supported).
|
||||
Any
|
||||
.Ar flags
|
||||
that are specified are passed to the user's preferred
|
||||
.Ev PAGER
|
||||
(which is
|
||||
.Pa /usr/bin/more
|
||||
by default).
|
||||
.Pp
|
||||
When multiple files are specified,
|
||||
.Nm
|
||||
will pause at the end of each file and present the following prompt to the user:
|
||||
.Bd -literal -offset indent
|
||||
prev_file (END) - Next: next_file
|
||||
.Ed
|
||||
.Pp
|
||||
Where
|
||||
.Sy prev_file
|
||||
is the file that was just displayed and
|
||||
.Sy next_file
|
||||
is the next file to be displayed.
|
||||
The following keys are recognized at the prompt:
|
||||
.Bl -tag -width "e or q" -offset indent
|
||||
.It Ic e No or Ic q
|
||||
quit
|
||||
.Nm zmore .
|
||||
.It Ic s
|
||||
skip the next file (or exit if the next file is the last).
|
||||
.El
|
||||
.Pp
|
||||
If no files are specified,
|
||||
.Nm
|
||||
will read from the standard input.
|
||||
In this mode
|
||||
.Nm
|
||||
will assume
|
||||
.Xr gzip 1
|
||||
style compression since there is no suffix on which to make a decision.
|
||||
.Sh ENVIRONMENT
|
||||
.Bl -tag -width "PAGER"
|
||||
.It Ev PAGER
|
||||
Program used to display files.
|
||||
If unset,
|
||||
.Pa /usr/bin/more
|
||||
is used.
|
||||
.El
|
||||
.Sh SEE ALSO
|
||||
.Xr compress 1 ,
|
||||
.Xr less 1 ,
|
||||
.Xr more 1
|
||||
|
|
@ -0,0 +1,135 @@
|
|||
#!/bin/ksh -
|
||||
#
|
||||
# $OpenBSD: znew,v 1.2 2003/08/05 18:22:17 deraadt Exp $
|
||||
#
|
||||
# Copyright (c) 2003 Otto Moerbeek <otto@drijf.net>
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software for any
|
||||
# purpose with or without fee is hereby granted, provided that the above
|
||||
# copyright notice and this permission notice appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
||||
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
#
|
||||
|
||||
# Return 0 if the first arg file size is smaller than the second, 1 otherwise.
|
||||
smaller () {
|
||||
a=`du -k "$1" | awk '{ print $1 }'`
|
||||
b=`du -k "$2" | awk '{ print $1 }'`
|
||||
test $a -lt $b
|
||||
}
|
||||
|
||||
# Check gzip integrity if the -t flag is specified
|
||||
checkfile () {
|
||||
if test $tflag -eq 1; then
|
||||
gzip -qt < "$1"
|
||||
fi
|
||||
}
|
||||
|
||||
# Decompress a file and then gzip it
|
||||
process () {
|
||||
prefix="${1%.Z}"
|
||||
filez="$prefix".Z
|
||||
filegz="$prefix".gz
|
||||
|
||||
if test ! -e "$filez"; then
|
||||
echo "$prog: $filez does not exist"
|
||||
return 1
|
||||
fi
|
||||
if test ! -f "$filez"; then
|
||||
echo "$prog: $filez is not a regular file"
|
||||
return 1
|
||||
fi
|
||||
if test -e "$filegz" -a $fflag -eq 0; then
|
||||
echo "$prog: $filegz already exists"
|
||||
return 1
|
||||
fi
|
||||
|
||||
tmp=`mktemp /tmp/znewXXXXXXXXXX` || {
|
||||
echo "$prog: cannot create tmp file"
|
||||
return 1
|
||||
}
|
||||
trap 'rm -f "$tmp"; exit 1' HUP INT QUIT PIPE TERM
|
||||
|
||||
# Do the actual work, producing a file "$tmp"
|
||||
if uncompress -f -c < "$filez" | gzip -f $gzipflags -o "$tmp"; then
|
||||
|
||||
if test $kflag -eq 1 && smaller "$filez" "$tmp"; then
|
||||
echo -n "$prog: $filez is smaller than $filegz"
|
||||
echo "; keeping it"
|
||||
rm -f "$tmp"
|
||||
return 0
|
||||
fi
|
||||
if ! checkfile "$tmp"; then
|
||||
echo "$prog: integrity check of $tmp failed"
|
||||
rm -f "$tmp"
|
||||
return 1;
|
||||
fi
|
||||
|
||||
# Try to keep the mode of the original file
|
||||
if ! cp -fp "$filez" "$filegz"; then
|
||||
echo "$prog: warning: could not keep mode of $filez"
|
||||
fi
|
||||
if ! cp "$tmp" "$filegz" 2> /dev/null; then
|
||||
echo "$prog: warning: could not keep mode of $filez"
|
||||
if ! cp -f "$tmp" "$filegz" 2> /dev/null; then
|
||||
echo "$prog: could not copy $tmp to $filegz"
|
||||
rm -f "$filegz" "$tmp"
|
||||
return 1
|
||||
fi
|
||||
fi
|
||||
if ! touch -fr "$filez" "$filegz"; then
|
||||
echo -n "$prog: warning: could not keep timestamp of "
|
||||
echo "$filez"
|
||||
fi
|
||||
rm -f "$filez" "$tmp"
|
||||
else
|
||||
echo "$prog: failed to process $filez"
|
||||
rm -f "$tmp"
|
||||
return 1
|
||||
fi
|
||||
}
|
||||
|
||||
prog=`basename "$0"`
|
||||
usage="usage: $prog [-ftv9K] file ..."
|
||||
|
||||
fflag=0
|
||||
tflag=0
|
||||
kflag=0
|
||||
gzipflags=
|
||||
|
||||
# -P flag is recognized to maintain compatibility, but ignored. Pipe mode is
|
||||
# always used
|
||||
while getopts :ftv9PK i; do
|
||||
case $i in
|
||||
f) fflag=1;;
|
||||
t) tflag=1;;
|
||||
v) gzipflags="-v $gzipflags";;
|
||||
9) gzipflags="-9 $gzipflags";;
|
||||
P) ;;
|
||||
K) kflag=1;;
|
||||
\?) echo "$usage"; exit 1;;
|
||||
esac
|
||||
done
|
||||
|
||||
shift OPTIND-1
|
||||
|
||||
if test $# -eq 0; then
|
||||
echo "$usage"
|
||||
exit 1
|
||||
fi
|
||||
|
||||
rc=0
|
||||
|
||||
while test $# -ne 0; do
|
||||
if ! process "$1"; then
|
||||
rc=$?
|
||||
fi
|
||||
shift
|
||||
done
|
||||
exit $rc
|
||||
|
|
@ -0,0 +1,69 @@
|
|||
.\" $OpenBSD: znew.1,v 1.1 2003/08/02 20:52:50 otto Exp $
|
||||
.\"
|
||||
.\" Copyright (c) 2003 Otto Moerbeek <otto@drijf.net>
|
||||
.\"
|
||||
.\" Permission to use, copy, modify, and distribute this software for any
|
||||
.\" purpose with or without fee is hereby granted, provided that the above
|
||||
.\" copyright notice and this permission notice appear in all copies.
|
||||
.\"
|
||||
.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
||||
.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
||||
.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
||||
.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
.\"
|
||||
.Dd August 1, 2003
|
||||
.Dt ZNEW 1
|
||||
.Os
|
||||
.Sh NAME
|
||||
.Nm znew
|
||||
.Nd convert compressed files to gzipped files
|
||||
.Sh SYNOPSIS
|
||||
.Nm
|
||||
.Op Fl ftv9K
|
||||
.Ar
|
||||
.Sh DESCRIPTION
|
||||
The
|
||||
.Nm
|
||||
utility uncompresses files compressed by
|
||||
.Xr compress 1
|
||||
and recompresses them with
|
||||
.Xr gzip 1 .
|
||||
.Pp
|
||||
The options are as follows:
|
||||
.Bl -tag -width Ds
|
||||
.It Fl f
|
||||
Overwrite existing
|
||||
.Sq .gz
|
||||
files.
|
||||
Unless this option is specified,
|
||||
.Nm
|
||||
refuses to overwrite existing files.
|
||||
.It Fl t
|
||||
Test integrity of the gzipped file before deleting the original file.
|
||||
If the integrity check fails, the original
|
||||
.Sq .Z
|
||||
file is not removed.
|
||||
.It Fl v
|
||||
Print a report specifying the achieved compression ratios.
|
||||
.It Fl 9
|
||||
Use the -9 mode of
|
||||
.Xr gzip 1 ,
|
||||
achieving better compression at the cost of slower execution.
|
||||
.It Fl K
|
||||
Keep the original
|
||||
.Sq .Z
|
||||
file if it uses less disk blocks than the gzipped one.
|
||||
A disk block is 1024 bytes.
|
||||
.El
|
||||
.Sh SEE ALSO
|
||||
.Xr gzip 1
|
||||
.Sh CAVEATS
|
||||
The
|
||||
.Nm
|
||||
utility tries to maintain the file mode of the original file.
|
||||
If the original file is not writable, it is not able to do that and
|
||||
.Nm
|
||||
will print a warning.
|
||||
Loading…
Reference in New Issue