70 lines
1.8 KiB
Perl
Executable File
70 lines
1.8 KiB
Perl
Executable File
#! /usr/bin/perl
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# ex:ts=8 sw=4:
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# $OpenBSD: pkg_subst,v 1.3 2008/06/09 12:01:39 espie Exp $
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#
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# Copyright (c) 2008 Marc Espie <espie@openbsd.org>
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#
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# Permission to use, copy, modify, and distribute this software for any
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# purpose with or without fee is hereby granted, provided that the above
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# copyright notice and this permission notice appear in all copies.
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#
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# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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# very simple script, only allows substitutions
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use strict;
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use warnings;
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use OpenBSD::Getopt;
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use OpenBSD::Subst;
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use OpenBSD::Error;
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my $subst = OpenBSD::Subst->new;
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our $opt_c;
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set_usage(
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'pkg_subst [-c] [-Dvar=value ...] [file ...]');
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try {
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getopts('D:ch',
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{'D' =>
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sub {
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$subst->parse_option(shift);
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},
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'h' => sub { Usage(); },
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});
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} catchall {
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Usage($_);
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};
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my $bak = $subst->value('BAK');
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if (!defined $bak) {
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$bak = '.bak';
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}
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if (@ARGV == 0) {
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$subst->copy_fh2(\*STDIN, \*STDOUT);
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}
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while (my $src = shift) {
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my $dest;
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if ($opt_c) {
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$dest = shift or die "odd number of files";
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} else {
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$dest = $src;
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$src .= $bak;
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rename($dest, $src) or die "Can't rename $dest: $!";
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}
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$subst->copy($src, $dest);
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# copy rights as well (and owner/group if we're root)
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my ($uid, $gid, $mode) = (stat $src)[4, 5, 2];
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if ($< == 0) {
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chown $uid, $gid, $dest; # not checked
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}
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chmod $mode & 07777, $dest; # not checked
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}
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