summaryrefslogtreecommitdiff
path: root/dh_fixperms
blob: 7cd33935079642fa949a7ba8ddcbd6df32cd545e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
#!/usr/bin/perl -w

=head1 NAME

dh_fixperms - fix permissions of files in package build directories

=cut

use strict;
use Debian::Debhelper::Dh_Lib;

=head1 SYNOPSIS

dh_fixperms [debhelper options] [-Xitem]

=head1 DESCRIPTION

dh_fixperms is a debhelper program that is responsible for setting the
permissions of files and directories in package build directories to a
sane state -- a state that complies with Debian policy.

dh_fixperms makes all files in usr/share/doc in the package build directory
(excluding files in the examples/ directory) be mode 644. It also changes
the permissions of all man pages to mode 644. It makes all files be owned by
root, and it removes group and other write permission from all files.
It removes execute permissions from any libraries that have it set. Finally,
it removes the setuid and setgid bits from all files in the package.

=head1 OPTIONS

=over 4

=item B<-X>I<item>, B<--exclude>I<item>

Exclude files that contain "item" anywhere in their filename from having
their permissions changed. You may use this option multiple times to build
up a list of things to exclude.

=back

=cut

init();

foreach my $package (@{$dh{DOPACKAGES}}) {
	my $tmp=tmpdir($package);

	my $find_options='';
	if (defined($dh{EXCLUDE_FIND}) && $dh{EXCLUDE_FIND} ne '') {
		$find_options="! \\( $dh{EXCLUDE_FIND} \\)";
	}

	# General permissions fixing.
	complex_doit("find $tmp $find_options -print0",
		"2>/dev/null | xargs -0r chown --no-dereference 0.0");
	complex_doit("find $tmp ! -type l $find_options -print0",
		"2>/dev/null | xargs -0r chmod go=rX,u+rw,a-s");
		
	# Fix up premissions in usr/share/doc, setting everything to not
	# executable by default, but leave examples directories alone.
	complex_doit("find $tmp/usr/share/doc $tmp/usr/doc -type f $find_options ! -regex '.*/examples/.*' -print0",
		"2>/dev/null | xargs -0r chmod 644");
	complex_doit("find $tmp/usr/share/doc $tmp/usr/doc -type d $find_options -print0",
		"2>/dev/null | xargs -0r chmod 755");

	# Executable man pages are a bad thing..
	complex_doit("find $tmp/usr/share/man $tmp/usr/man/ $tmp/usr/X11*/man/ -type f",
		"$find_options -print0 2>/dev/null | xargs -0r chmod 644");

	# ..and so are executable shared and static libraries 
	# (and .la files from libtool)
	complex_doit("find $tmp -perm -5 -type f",
		"\\( -name '*.so*' -or -name '*.la' -or -name '*.a' \\) $find_options -print0",
		"2>/dev/null | xargs -0r chmod a-X");
}

=head1 SEE ALSO

L<debhelper(1)|debhelper>

This program is a part of debhelper.

=head1 AUTHOR

Joey Hess <joeyh@debian.org>

=cut