4e742fc867
Problem and fix reported by Pavel Cahyna in https://lists.gnu.org/r/bug-tar/2025-01/msg00000.html * src/extract.c (extract_dir): With --no-overwrite-dir, skip the chmod if the directory already exists. * tests/extrac23.at (--no-overwrite-dir on empty directory): Move the part of the test that looks at a nonempty directory ... * tests/extrac30.at: ... to this new file, because the test now must be run as non-root. Adjust the test to match the new behavior. * tests/Makefile.am (TESTSUITE_AT), tests/testsuite.at: Add it.
48 lines
1.4 KiB
Plaintext
48 lines
1.4 KiB
Plaintext
# Test suite for GNU tar. -*- Autotest -*-
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# Copyright 2020-2025 Free Software Foundation, Inc.
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#
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# This file is part of GNU tar.
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#
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# GNU tar is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# GNU tar is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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AT_SETUP([--no-overwrite-dir on unwritable directory])
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AT_KEYWORDS([extract extrac30 no-overwrite-dir])
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# Make sure that tar does not change permissions on directories if
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# --no-overwrite-dir tells it not to, not even temporarily.
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AT_TAR_CHECK([
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AT_UNPRIVILEGED_PREREQ
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# Test that the user cannot write to a unwritable directory
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# if --no-overwrite-dir is used.
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mkdir dir
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chmod 755 dir
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genfile --file dir/file
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tar cf a.tar dir
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rm dir/file
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chmod 555 dir
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tar -xf a.tar --no-overwrite-dir
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genfile --stat=mode.777 dir
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chmod 755 dir
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find dir
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],
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[0],
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[555
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dir
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],
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[tar: dir/file: Cannot open: Permission denied
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tar: Exiting with failure status due to previous errors
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])
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AT_CLEANUP
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