0b74885e81
Problem reported by Kevin Raymond in: https://bugzilla.redhat.com/show_bug.cgi?id=1886540 * src/extract.c (open_output_file): If we already created the empty file, do not open with O_EXCL, or with O_CREAT or O_TRUNC for that matter. Instead, use only O_NOFOLLOW to avoid some races. When estimating current mode, use openflag & O_EXCL rather than overwriting_old_files. (extract_file): Also invert S_IWUSR if it’s not set. * tests/xattr08.at: New test. * tests/Makefile.am, tests/testsuite.at: Add it.
42 lines
1.2 KiB
Plaintext
42 lines
1.2 KiB
Plaintext
# Process this file with autom4te to create testsuite. -*- Autotest -*-
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#
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# Test suite for GNU tar.
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# Copyright 2022 Free Software Foundation, Inc.
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# This file is part of GNU tar.
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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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# 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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# 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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#
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# Test description:
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# Test read-only files can be extracted with --xattr.
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# Per report:
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# https://lists.gnu.org/r/bug-tar/2020-10/msg00001.html
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AT_SETUP([xattrs: xattrs and read-only files])
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AT_KEYWORDS([xattrs xattr08])
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AT_TAR_CHECK([
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AT_XATTRS_PREREQ
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mkdir dir dir2
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genfile --file dir/file
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setfattr -n user.test -v OurDirValue dir/file
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chmod a-w dir/file
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tar --xattrs -C dir -cf archive.tar file
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tar --xattrs -C dir2 -xf archive.tar
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])
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AT_CLEANUP
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