| 1 | #!/bin/sh |
| 2 | # Before gzip-1.4, this the use of memcpy in inflate_codes could |
| 3 | # mistakenly operate on overlapping regions. Exercise that code. |
| 4 | |
| 5 | # Copyright (C) 2010-2016 Free Software Foundation, Inc. |
| 6 | |
| 7 | # This program is free software: you can redistribute it and/or modify |
| 8 | # it under the terms of the GNU General Public License as published by |
| 9 | # the Free Software Foundation, either version 3 of the License, or |
| 10 | # (at your option) any later version. |
| 11 | |
| 12 | # This program is distributed in the hope that it will be useful, |
| 13 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | # GNU General Public License for more details. |
| 16 | |
| 17 | # You should have received a copy of the GNU General Public License |
| 18 | # along with this program. If not, see <https://www.gnu.org/licenses/>. |
| 19 | # limit so don't run it by default. |
| 20 | |
| 21 | . "${srcdir=.}/init.sh"; path_prepend_ . |
| 22 | |
| 23 | # The input must be larger than 32KiB and slightly |
| 24 | # less uniform than e.g., all zeros. |
| 25 | printf wxy%032767d 0 | tee in | gzip > in.gz || framework_failure_ |
| 26 | |
| 27 | fail=0 |
| 28 | |
| 29 | # Before the fix, this would call memcpy with overlapping regions. |
| 30 | gzip -dc in.gz > out || fail=1 |
| 31 | |
| 32 | compare in out || fail=1 |
| 33 | |
| 34 | Exit $fail |