#!/bin/sh # sh is buggy on RS/6000 AIX 3.2. Replace above line with #!/bin/ksh # lzcmp and lzdiff are used to invoke the cmp or the diff pro- # gram on compressed files. All options specified are passed # directly to cmp or diff. If only 1 file is specified, then # the files compared are file1 and an uncompressed file1.lzma. # If two files are specified, then they are uncompressed and # fed to cmp or diff. The exit status from cmp or diff is # preserved. prog=`echo $0 | sed 's|.*/||'` case "$prog" in *cmp) comp=${CMP-cmp} ;; *) comp=${DIFF-diff} ;; esac OPTIONS= FILES= for ARG do case "$ARG" in -*) OPTIONS="$OPTIONS $ARG";; *) if test -f "$ARG"; then FILES="$FILES $ARG" else echo "${prog}: $ARG not found or not a regular file" exit 2 fi ;; esac done if test -z "$FILES"; then echo "Usage: $prog [${comp}_options] file [file]" exit 2 fi set $FILES if test $# -eq 1; then FILE=`echo "$1" | sed 's/[-.][tlaz]*$//'` lzma -dc "$1" | $comp $OPTIONS - "$FILE" elif test $# -eq 2; then case "$1" in *[-.]lzma | *.t[la]z) case "$2" in *[-.]lzma | *.t[la]z) F=`echo "$2" | sed 's|.*/||;s|[-.][tlaz]*||'` TF=`/usr/bin/mktemp ${TMPDIR:-/tmp}/"$F".XXXXXXXXXX` || exit 1 trap 'rm -f "$TF"; exit 2' EXIT HUP INT PIPE TERM lzma -dc "$2" > "$TF" || exit lzma -dc "$1" | $comp $OPTIONS - "$TF" STAT="$?" rm -f "$TF" || STAT=2 trap EXIT HUP INT PIPE TERM exit $STAT;; *) lzma -dc "$1" | $comp $OPTIONS - "$2";; esac;; *) case "$2" in *[-.]lzma | *.t[la]z) lzma -dc "$2" | $comp $OPTIONS "$1" -;; *) $comp $OPTIONS "$1" "$2";; esac;; esac else echo "Usage: $prog [${comp}_options] file [file]" exit 2 fi