tar/tests/extrac06.at

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

# Test suite for GNU tar.

# Copyright 2006-2023 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/>.

# The bug occurs when extracting from a tarfile a directory when the directory
# already exists and the version in the tarfile has more permissive
# permissions than your umask.  In this case, the permissions of the
# existing directory will toggle between the version which complies with
# your umask (which would be correct, without -p) and the version from the
# tarfile.
#
# Reported by: Ian Jackson <[email protected]>
#
# References: <[email protected]>
#

AT_SETUP([mode of extracted directories])
AT_KEYWORDS([extract extract06 directory mode])

AT_TAR_CHECK([

# Force umask
umask 022

# Make sure user's umask is honored, even if we are superuser
TAR_OPTIONS="$TAR_OPTIONS --no-same-permissions"

# Create a directory
mkdir directory
chmod 777 directory
genfile --stat=mode:777 directory

# Archive it
tar cf arc directory

# Change its permissions ...
chmod 755 directory
genfile --stat=mode:777 directory

# ... and attempt to restore it twice
tar xf arc directory --warning=no-timestamp
genfile --stat=mode:777 directory

tar xf arc directory --warning=no-timestamp
genfile --stat=mode:777 directory

# After both restores, the directory mode should be 755
],
[0],
[777
755
755
755
])

AT_CLEANUP