1 | /* Make sure blank lines does not cause memory corruption BZ #18887. |
2 | |
3 | Copyright (C) 2009-2022 Free Software Foundation, Inc. |
4 | This file is part of the GNU C Library. |
5 | |
6 | The GNU C Library is free software; you can redistribute it and/or |
7 | modify it under the terms of the GNU Lesser General Public |
8 | License as published by the Free Software Foundation; either |
9 | version 2.1 of the License, or (at your option) any later version. |
10 | |
11 | The GNU C Library is distributed in the hope that it will be useful, |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
14 | Lesser General Public License for more details. |
15 | |
16 | You should have received a copy of the GNU Lesser General Public |
17 | License along with the GNU C Library; if not, see |
18 | <https://www.gnu.org/licenses/>. */ |
19 | |
20 | #include <mntent.h> |
21 | #include <stdio.h> |
22 | #include <string.h> |
23 | |
24 | /* Make sure blank lines don't trigger memory corruption. This doesn't happen |
25 | for all targets though, so it's a best effort test BZ #18887. */ |
26 | static int |
27 | do_test (void) |
28 | { |
29 | FILE *fp; |
30 | |
31 | fp = tmpfile (); |
32 | fputs ("\n \n/foo\\040dir /bar\\040dir auto bind \t \n" , fp); |
33 | rewind (fp); |
34 | |
35 | /* The corruption happens here ... */ |
36 | getmntent (stream: fp); |
37 | /* ... but trigers here. */ |
38 | endmntent (stream: fp); |
39 | |
40 | /* If the test failed, we would crash, and not hit this point. */ |
41 | return 0; |
42 | } |
43 | |
44 | #define TEST_FUNCTION do_test () |
45 | #include "../test-skeleton.c" |
46 | |