1#!/bin/sh -
2#
3# $NetBSD: zmore,v 1.5 2013/12/06 13:33:15 pettai Exp $
4#
5# $OpenBSD: zmore,v 1.6 2008/08/20 09:22:02 mpf Exp $
6#
7#-
8# Copyright (c) 2003 Todd C. Miller <Todd.Miller@courtesan.com>
9#
10# Permission to use, copy, modify, and distribute this software for any
11# purpose with or without fee is hereby granted, provided that the above
12# copyright notice and this permission notice appear in all copies.
13#
14# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
15# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
16# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
17# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
18# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
19# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
20# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
21#
22# Sponsored in part by the Defense Advanced Research Projects
23# Agency (DARPA) and Air Force Research Laboratory, Air Force
24# Materiel Command, USAF, under agreement number F39502-99-1-0512.
25#
26
27# Pull out any command line flags so we can pass them to more/less
28flags=
29while test $# -ne 0; do
30	case "$1" in
31		--)
32			shift
33			break
34			;;
35		-*)
36			flags="$flags $1"
37			shift
38			;;
39		*)
40			break
41			;;
42	esac
43done
44
45if [ `basename $0` = "zless" ] ; then
46	pager=${PAGER-less}
47else
48	pager=${PAGER-more}
49fi
50
51# No files means read from stdin
52if [ $# -eq 0 ]; then
53	gzip -cdfq 2>&1 | $pager $flags
54	exit 0
55fi
56
57oterm=`stty -g 2>/dev/null`
58while test $# -ne 0; do
59	gzip -cdfq "$1" 2>&1 | $pager $flags
60	prev="$1"
61	shift
62	if tty -s && test -n "$oterm" -a $# -gt 0; then
63		#echo -n "--More--(Next file: $1)"
64		echo -n "$prev (END) - Next: $1 "
65		trap "stty $oterm 2>/dev/null" 0 1 2 3 13 15
66		stty cbreak -echo 2>/dev/null
67		REPLY=`dd bs=1 count=1 2>/dev/null`
68		stty $oterm 2>/dev/null
69		trap - 0 1 2 3 13 15
70		echo
71		case "$REPLY" in
72			s)
73				shift
74				;;
75			e|q)
76				break
77				;;
78		esac
79	fi
80done
81exit 0
82