1 # Process this file with autom4te to create testsuite. -*- Autotest -*-
3 # Test suite for GNU tar.
4 # Copyright 2018-2023 Free Software Foundation, Inc.
6 # This file is part of GNU tar.
8 # GNU tar is free software; you can redistribute it and/or modify
9 # it under the terms of the GNU General Public License as published by
10 # the Free Software Foundation; either version 3 of the License, or
11 # (at your option) any later version.
13 # GNU tar is distributed in the hope that it will be useful,
14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 # GNU General Public License for more details.
18 # You should have received a copy of the GNU General Public License
19 # along with this program. If not, see <http://www.gnu.org/licenses/>.
21 # While fixing CVE-2018-20482 (see sptrcreat.at) it has been discovered
22 # that similar bug exists in file checking code (tar d).
23 # This test case checks if tar correctly handles a short read condition
24 # appearing in check_data_region.
26 AT_SETUP([file truncated in data region while comparing])
27 AT_KEYWORDS([truncate filechange sparse sptr sptrdiff diff])
29 # This triggers short read in check_data_region.
31 genfile --sparse --block-size=1024 --file foo \
32 0 ABCDEFGHIJ 1M ABCDEFGHIJ 10M ABCDEFGHIJ 200M ABCDEFGHIJ || AT_SKIP_TEST
35 tar --sparse -vcf bar foo baz
37 genfile --run --checkpoint 5 --length 221278210 --truncate foo -- \
50 [],[],[posix, gnu, oldgnu])