global: convert indentation-TABs to spaces
[coreutils.git] / tests / CuTmpdir.pm
blob1f9f08d0c06685e4b3c7ac304283047e4bfc5fe7
1 package CuTmpdir;
2 # create, then chdir into a temporary sub-directory
4 # Copyright (C) 2007-2009 Free Software Foundation, Inc.
6 # This program is free software: you can redistribute it and/or modify
7 # it under the terms of the GNU General Public License as published by
8 # the Free Software Foundation, either version 3 of the License, or
9 # (at your option) any later version.
11 # This program is distributed in the hope that it will be useful,
12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 # GNU General Public License for more details.
16 # You should have received a copy of the GNU General Public License
17 # along with this program. If not, see <http://www.gnu.org/licenses/>.
19 use strict;
20 use warnings;
22 use File::Temp;
23 use File::Find;
25 our $ME = $0 || "<???>";
27 my $dir;
29 sub skip_test($)
31 warn "$ME: skipping test: unsafe working directory name: `$_[0]'\n";
32 exit 77;
35 sub chmod_1
37 my $name = $_;
39 # Skip symlinks and non-directories.
40 -l $name || !-d _
41 and return;
43 chmod 0700, $name;
46 sub chmod_tree
48 # When tempdir fails, it croaks, which leaves $dir undefined.
49 defined $dir
50 or return;
52 # Perform the equivalent of find "$dir" -type d -print0|xargs -0 chmod -R 700.
53 my $options = {untaint => 1, wanted => \&chmod_1};
54 find ($options, $dir);
57 sub import {
58 my $prefix = $_[1];
60 $ME eq '-' && defined $prefix
61 and $ME = $prefix;
63 if ($prefix !~ /^\//)
65 eval 'use Cwd';
66 my $cwd = $@ ? '.' : Cwd::getcwd();
67 $prefix = "$cwd/$prefix";
70 # Untaint for the upcoming mkdir.
71 $prefix =~ m!^([-+\@\w./]+)$!
72 or skip_test $prefix;
73 $prefix = $1;
75 my $original_pid = $$;
77 my $on_sig_remove_tmpdir = sub {
78 my ($sig) = @_;
79 if ($$ == $original_pid and defined $dir)
81 chmod_tree;
82 # Older versions of File::Temp lack this method.
83 exists &File::Temp::cleanup
84 and &File::Temp::cleanup;
86 $SIG{$sig} = 'DEFAULT';
87 kill $sig, $$;
90 foreach my $sig (qw (INT TERM HUP))
92 $SIG{$sig} = $on_sig_remove_tmpdir;
95 $dir = File::Temp::tempdir("$prefix.tmp-XXXX", CLEANUP => 1 );
96 chdir $dir
97 or warn "$ME: failed to chdir to $dir: $!\n";
100 END {
101 # Move cwd out of the directory we're about to remove.
102 # This is required on some systems, and by some versions of File::Temp.
103 chdir '..'
104 or warn "$ME: failed to chdir to .. from $dir: $!\n";
106 my $saved_errno = $?;
107 chmod_tree;
108 $? = $saved_errno;