tar/tests/extrac09.at

# Process this file with autom4te to create testsuite. -*- Autotest -*-

# Test suite for GNU tar.
# Copyright 2010-2023 Free Software Foundation, Inc.

# This file is part of GNU tar.

# GNU tar 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.

# GNU tar 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/>.

# This attempts to cause xgetcwd() to fail, and then checks to see if
# such failure causes tar to abort even in a case where the results of
# the call aren't actually needed.
#
# (xgetcwd() may fail e.g. on Solaris 10 when "." or ".." are unreadable.
# On most systems xgetcwd() won't fail even in that situation, but
# on those systems this test will simply succeed without actually testing
# anything within tar.)
#
# http://lists.gnu.org/archive/html/bug-tar/2010-07/msg00045.html
#
# (See also 'listed03.at'.)

AT_SETUP([extracting even when . and .. are unreadable])
AT_KEYWORDS([extract extrac09 chdir])

AT_TAR_CHECK([
AT_UNPRIVILEGED_PREREQ

mkdir dir
mkdir dir/sub
mkdir dir/sub/extract
genfile --file dir/sub/f
cd dir/sub

tar -cf archive.tar f

chmod a-r . ..
tar -xvf archive.tar -C extract f
status=$?
chmod a+r . ..
cmp f extract/f || status=$?
exit $status
],
[0],
[f
],
[],[],[],[gnu])

AT_CLEANUP