1#!/bin/sh -
2#
3# $NetBSD: zforce,v 1.2 2003/12/28 12:43:43 wiz Exp $
4#
5# $OpenBSD: zforce,v 1.2 2003/08/05 18:22:17 deraadt Exp $
6#
7# Copyright (c) 2003 Otto Moerbeek <otto@drijf.net>
8#
9# Permission to use, copy, modify, and distribute this software for any
10# purpose with or without fee is hereby granted, provided that the above
11# copyright notice and this permission notice appear in all copies.
12#
13# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
14# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
15# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
16# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
17# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
18# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
19# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
20#
21prog=`basename $0`
22USAGE="usage: $prog file ..."
23if test $# -eq 0; then
24          echo $USAGE
25          exit 1
26fi
27
28ret=0
29
30while test $# -ne 0; do
31          case "$1" in
32                    *[._-]gz)
33                              shift
34                              ;;
35                    *.t[ag]z)
36                              shift
37                              ;;
38                    *)
39                              if file "$1" |
40                                        grep -q "gzip compressed data" 2> /dev/null
41                              then
42                                        n="$1".gz
43                                        if mv "$1" "$n" 2> /dev/null; then
44                                                  echo "$1" -- renamed to "$n"
45                                        else
46                                                  ret=1
47                                                  echo $prog: cannot rename "$1" to "$n"
48                                        fi
49                              fi
50                              shift
51                              ;;
52          esac
53done
54exit $ret
55