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Revision 1.2, Tue Jul 29 07:42:44 2003 UTC (20 years, 9 months ago) by otto
Branch: MAIN
CVS Tags: OPENBSD_6_4_BASE, OPENBSD_6_4, OPENBSD_6_3_BASE, OPENBSD_6_3, OPENBSD_6_2_BASE, OPENBSD_6_2, OPENBSD_6_1_BASE, OPENBSD_6_1, OPENBSD_6_0_BASE, OPENBSD_6_0, OPENBSD_5_9_BASE, OPENBSD_5_9, OPENBSD_5_8_BASE, OPENBSD_5_8, OPENBSD_5_7_BASE, OPENBSD_5_7, OPENBSD_5_6_BASE, OPENBSD_5_6, OPENBSD_5_5_BASE, OPENBSD_5_5, OPENBSD_5_4_BASE, OPENBSD_5_4, OPENBSD_5_3_BASE, OPENBSD_5_3, OPENBSD_5_2_BASE, OPENBSD_5_2, OPENBSD_5_1_BASE, OPENBSD_5_1, OPENBSD_5_0_BASE, OPENBSD_5_0, OPENBSD_4_9_BASE, OPENBSD_4_9, OPENBSD_4_8_BASE, OPENBSD_4_8, OPENBSD_4_7_BASE, OPENBSD_4_7, OPENBSD_4_6_BASE, OPENBSD_4_6, OPENBSD_4_5_BASE, OPENBSD_4_5, OPENBSD_4_4_BASE, OPENBSD_4_4, OPENBSD_4_3_BASE, OPENBSD_4_3, OPENBSD_4_2_BASE, OPENBSD_4_2, OPENBSD_4_1_BASE, OPENBSD_4_1, OPENBSD_4_0_BASE, OPENBSD_4_0, OPENBSD_3_9_BASE, OPENBSD_3_9, OPENBSD_3_8_BASE, OPENBSD_3_8, OPENBSD_3_7_BASE, OPENBSD_3_7, OPENBSD_3_6_BASE, OPENBSD_3_6, OPENBSD_3_5_BASE, OPENBSD_3_5, OPENBSD_3_4_BASE, OPENBSD_3_4
Changes since 1.1: +2 -0 lines 

Add $OpenBSD$
ok millert@

#!/bin/sh -
#
# $OpenBSD: zdiff,v 1.2 2003/07/29 07:42:44 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.
#

# Set $prog based on $0
case $0 in
	*cmp)	prog=cmp
		;;
	*)	prog=diff
		;;
esac
USAGE="usage: z$prog [options] file1 [file2]"

# 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 "$1" in
		--)
			shift
			break
			;;
		-*)
			flags="$flags $1"
			shift
			;;
		*)
			break
			;;
	esac
done

if [ $# -eq 1 ]; then
	# One file given, compare compressed to uncompressed
	files="$1"
	case "$1" in
		*[._-][Zz])
			files="${1%??}"
			;;
		*[._-]gz)
			files="${1%???}"
			;;
		*.t[ag]z)
			files="${1%??}"ar
			;;
		*)	echo "z$prog: unknown suffix" 1>&2
			exit 1
	esac
	compress -cdfq "$1" | $prog $flags - "$files"
	status=$?
elif [ $# -eq 2 ]; then
	# Two files given, compare the two uncompressing as needed
	case "$1" in
		*[._-][Zz]|*[._-]gz|*.t[ag]z)
			files=-
			filt="compress -cdfq $1"
			;;
		*)
			files="$1"
			;;
	esac
	case "$2" in
		*[._-][Zz]|*[._-]gz|*.t[ag]z)
			if [ "$files" = "-" ]; then
				tmp=`mktemp -t z$prog.XXXXXXXXXX` || exit 1
				trap "rm -f $tmp" 0 1 2 3 13 15
				compress -cdfq "$2" > $tmp
				files="$files $tmp"
			else
				files="$files -"
				filt="compress -cdfq $2"
			fi
			;;
		*)
			files="$files $2"
			;;
	esac
	if [ -n "$filt" ]; then
		$filt | $prog $flags $files
	else
		$prog $flags $files
	fi
	status=$?
else
	echo "$USAGE" 1>&2
	exit 1
fi

exit $status