mirror of
https://git.hardenedbsd.org/hardenedbsd/HardenedBSD.git
synced 2024-12-18 22:15:46 +01:00
143 lines
3.1 KiB
Bash
143 lines
3.1 KiB
Bash
#!/bin/sh -
|
|
#
|
|
# $NetBSD: zdiff,v 1.5 2010/04/14 20:30:28 joerg Exp $
|
|
#
|
|
# $OpenBSD: zdiff,v 1.2 2003/07/29 07:42:44 otto Exp $
|
|
#
|
|
#-
|
|
# Copyright (c) 2003 Todd C. Miller <Todd.Miller@courtesan.com>
|
|
# Copyright (c) 2010 Joerg Sonnenberger <joerg@NetBSD.org>
|
|
#
|
|
# 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.
|
|
#
|
|
# $FreeBSD$
|
|
|
|
# Set $prog based on $0
|
|
case $0 in
|
|
*cmp) prog=cmp
|
|
;;
|
|
*) prog=diff
|
|
;;
|
|
esac
|
|
USAGE="usage: $0 [options] file1 [file2]"
|
|
|
|
check_suffix() {
|
|
case "$1" in
|
|
*[._-][Zz])
|
|
setvar $2 "${1%??}"
|
|
setvar $3 "gzip -cdqf"
|
|
;;
|
|
*[._-]bz)
|
|
setvar $2 "${1%???}"
|
|
setvar $3 "bzip2 -cdqf"
|
|
;;
|
|
*[._-]gz)
|
|
setvar $2 "${1%???}"
|
|
setvar $3 "gzip -cdqf"
|
|
;;
|
|
*[._-]xz)
|
|
setvar $2 "${1%???}"
|
|
setvar $3 "xz -cdqf"
|
|
;;
|
|
*[._-]bz2)
|
|
setvar $2 "${1%????}"
|
|
setvar $3 "bzip2 -cdqf"
|
|
;;
|
|
*[._-]lzma)
|
|
setvar $2 "${1%?????}"
|
|
setvar $3 "xz -cdqf"
|
|
;;
|
|
*.t[ag]z)
|
|
setvar $2 "${1%??}"ar
|
|
setvar $3 "gzip -cdqf"
|
|
;;
|
|
*.tbz)
|
|
setvar $2 "${1%??}"ar
|
|
setvar $3 "bzip2 -cdqf"
|
|
;;
|
|
*.tbz2)
|
|
setvar $2 "${1%???}"ar
|
|
setvar $3 "bzip2 -cdqf"
|
|
;;
|
|
*.t[lx]z)
|
|
setvar $2 "${1%??}"ar
|
|
setvar $3 "xz -cdqf"
|
|
;;
|
|
*)
|
|
setvar $2 "$1"
|
|
setvar $3 ""
|
|
;;
|
|
esac
|
|
}
|
|
|
|
|
|
# Pull out any command line flags so we can pass them to diff/cmp
|
|
# XXX - assumes there is no optarg
|
|
flags=
|
|
while test $# -ne 0; do
|
|
case "$1" in
|
|
--)
|
|
shift
|
|
break
|
|
;;
|
|
-)
|
|
break
|
|
;;
|
|
-*)
|
|
flags="$flags $1"
|
|
shift
|
|
;;
|
|
*)
|
|
break
|
|
;;
|
|
esac
|
|
done
|
|
|
|
if [ $# -eq 1 ]; then
|
|
# One file given, compare compressed to uncompressed
|
|
files="$1"
|
|
check_suffix "$1" files filt
|
|
if [ -z "$filt" ]; then
|
|
echo "z$prog: unknown suffix" 1>&2
|
|
exit 1
|
|
fi
|
|
$filt -- "$1" | $prog $flags -- - "$files"
|
|
status=$?
|
|
elif [ $# -eq 2 ]; then
|
|
# Two files given, compare the two uncompressing as needed
|
|
check_suffix "$1" files filt
|
|
check_suffix "$2" files2 filt2
|
|
if [ -z "$filt" -a -z "$filt2" ]; then
|
|
$prog $flags -- "$1" "$2"
|
|
elif [ -z "$filt" -a -n "$filt2" -a "$1" != "-" ]; then
|
|
$filt2 -- "$2" | $prog $flags -- "$1" -
|
|
elif [ -n "$filt" -a -z "$filt2" -a "$2" != "-" ]; then
|
|
$filt -- "$1" | $prog $flags -- - "$2"
|
|
else
|
|
tmp=`mktemp -t z$prog.XXXXXXXXXX` || exit 1
|
|
trap "rm -f $tmp" 0 1 2 3 13 15
|
|
${filt2:-cat} -- "$2" > $tmp || exit $?
|
|
${filt:-cat} -- "$1" | $prog $flags -- - "$tmp"
|
|
fi
|
|
status=$?
|
|
else
|
|
echo "$USAGE" 1>&2
|
|
exit 1
|
|
fi
|
|
|
|
exit $status
|