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package CuTmpdir;
# create, then chdir into a temporary sub-directory
# Copyright (C) 2007 Free Software Foundation, Inc.
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
use strict;
use warnings;
use File::Temp;
use File::Find;
our $ME = $0 || "<???>";
my $dir;
sub skip_test
{
warn "$ME: skipping test: unsafe working directory name\n";
exit 77;
}
sub import {
my $prefix = $_[1];
$ME eq '-' && defined $prefix
and $ME = $prefix;
if ($prefix !~ /^\//)
{
eval 'use Cwd';
my $cwd = $@ ? '.' : Cwd::getcwd();
$prefix = "$cwd/$prefix";
}
# Untaint for the upcoming mkdir.
$prefix =~ m!^([-+\@\w./]+)$!
or skip_test;
$prefix = $1;
$dir = File::Temp::tempdir("$prefix.tmp-XXXX", CLEANUP => 1 );
chdir $dir
or warn "$ME: failed to chdir to $dir: $!\n";
}
sub wanted
{
my $name = $_;
# Skip symlinks and non-directories.
-l $name || !-d _
and return;
chmod 0700, $name;
}
END {
my $saved_errno = $?;
if (defined $dir)
{
chdir $dir
or warn "$ME: failed to chdir to $dir: $!\n";
# Perform the equivalent of find . -type d -print0|xargs -0 chmod -R 700.
my $options = {untaint => 1, wanted => \&wanted};
find ($options, '.');
}
$? = $saved_errno;
}
1;
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