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b0e805fa MF |
1 | /* Make sure blank lines does not cause memory corruption BZ #18887. |
2 | ||
2b778ceb | 3 | Copyright (C) 2009-2021 Free Software Foundation, Inc. |
b0e805fa MF |
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 | |
5a82c748 | 18 | <https://www.gnu.org/licenses/>. */ |
b0e805fa MF |
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 (fp); | |
37 | /* ... but trigers here. */ | |
38 | endmntent (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" |