xref: /openbsd-src/usr.bin/compress/zmore (revision bf198cc6eba0ca1f6d79f71e8e2243d386241fa8)
12931048cSmillert#!/bin/sh -
2bfc7e83bSmillert#
3*bf198cc6Smillert# $OpenBSD: zmore,v 1.9 2019/01/25 00:19:26 millert Exp $
472223939Sotto#
5*bf198cc6Smillert# Copyright (c) 2003 Todd C. Miller <millert@openbsd.org>
6bfc7e83bSmillert#
7bfc7e83bSmillert# Permission to use, copy, modify, and distribute this software for any
8bfc7e83bSmillert# purpose with or without fee is hereby granted, provided that the above
9bfc7e83bSmillert# copyright notice and this permission notice appear in all copies.
10bfc7e83bSmillert#
11bfc7e83bSmillert# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12bfc7e83bSmillert# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13bfc7e83bSmillert# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14bfc7e83bSmillert# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15bfc7e83bSmillert# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16bfc7e83bSmillert# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17bfc7e83bSmillert# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18bfc7e83bSmillert#
19bfc7e83bSmillert# Sponsored in part by the Defense Advanced Research Projects
20bfc7e83bSmillert# Agency (DARPA) and Air Force Research Laboratory, Air Force
21bfc7e83bSmillert# Materiel Command, USAF, under agreement number F39502-99-1-0512.
22bfc7e83bSmillert#
23bfc7e83bSmillert
24bfc7e83bSmillert# Pull out any command line flags so we can pass them to more/less
25bfc7e83bSmillertflags=
26bfc7e83bSmillertwhile test $# -ne 0; do
27bfc7e83bSmillert	case "$1" in
28bfc7e83bSmillert		--)
29bfc7e83bSmillert			shift
30bfc7e83bSmillert			break
31bfc7e83bSmillert			;;
328a66e41bSmillert		-*|+*)
33bfc7e83bSmillert			flags="$flags $1"
34bfc7e83bSmillert			shift
35bfc7e83bSmillert			;;
36bfc7e83bSmillert		*)
37bfc7e83bSmillert			break
38bfc7e83bSmillert			;;
39bfc7e83bSmillert	esac
40bfc7e83bSmillertdone
41bfc7e83bSmillert
427f66b237Sjsgif [ `basename $0` == "zless" ] ; then
43f049e498Szhuk	pager=less
447f66b237Sjsgelse
45f049e498Szhuk	pager=more
467f66b237Sjsgfi
477f66b237Sjsg
48411a9ed2Smillert# No files means read from stdin
49bfc7e83bSmillertif [ $# -eq 0 ]; then
507ac7b043Smpf	compress -cdf 2>&1 | $pager $flags
51411a9ed2Smillert	exit 0
52bfc7e83bSmillertfi
53bfc7e83bSmillert
54bfc7e83bSmillertoterm=`stty -g 2>/dev/null`
55bfc7e83bSmillertwhile test $# -ne 0; do
567ac7b043Smpf	compress -cdf "$1" 2>&1 | $pager $flags
57bfc7e83bSmillert	prev="$1"
58bfc7e83bSmillert	shift
59411a9ed2Smillert	if tty -s && test -n "$oterm" -a $# -gt 0; then
60bfc7e83bSmillert		#echo -n "--More--(Next file: $1)"
61bfc7e83bSmillert		echo -n "$prev (END) - Next: $1 "
62bfc7e83bSmillert		trap "stty $oterm 2>/dev/null" 0 1 2 3 13 15
63bfc7e83bSmillert		stty cbreak -echo 2>/dev/null
64bfc7e83bSmillert		REPLY=`dd bs=1 count=1 2>/dev/null`
65bfc7e83bSmillert		stty $oterm 2>/dev/null
66bfc7e83bSmillert		trap - 0 1 2 3 13 15
67bfc7e83bSmillert		echo
68bfc7e83bSmillert		case "$REPLY" in
69bfc7e83bSmillert			s)
70bfc7e83bSmillert				shift
71bfc7e83bSmillert				;;
72bfc7e83bSmillert			e|q)
73bfc7e83bSmillert				break
74bfc7e83bSmillert				;;
75bfc7e83bSmillert		esac
76411a9ed2Smillert	fi
77bfc7e83bSmillertdone
78bfc7e83bSmillertexit 0
79