# Test suite for GNU tar.                             -*- Autotest -*-
# Copyright 2020-2025 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/>.
AT_SETUP([--no-overwrite-dir on unwritable directory])
AT_KEYWORDS([extract extrac30 no-overwrite-dir])

# Make sure that tar does not change permissions on directories if
# --no-overwrite-dir tells it not to, not even temporarily.

AT_TAR_CHECK([
AT_UNPRIVILEGED_PREREQ

# Test that the user cannot write to a unwritable directory
# if --no-overwrite-dir is used.
mkdir dir
chmod 755 dir
genfile --file dir/file
tar cf a.tar dir
rm dir/file
chmod 555 dir
tar -xf a.tar --no-overwrite-dir
genfile --stat=mode.777 dir
chmod 755 dir
find dir
],
[0],
[555
dir
],
[tar: dir/file: Cannot open: Permission denied
tar: Exiting with failure status due to previous errors
])
AT_CLEANUP