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b168057a | 1 | /* Copyright (C) 2013-2015 Free Software Foundation, Inc. |
303e567a SP |
2 | This file is part of the GNU C Library. |
3 | ||
4 | The GNU C Library is free software; you can redistribute it and/or | |
5 | modify it under the terms of the GNU Lesser General Public | |
6 | License as published by the Free Software Foundation; either | |
7 | version 2.1 of the License, or (at your option) any later version. | |
8 | ||
9 | The GNU C Library is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
12 | Lesser General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU Lesser General Public | |
15 | License along with the GNU C Library; if not, see | |
16 | <http://www.gnu.org/licenses/>. */ | |
17 | ||
18 | #include <locale.h> | |
19 | #include <stdio.h> | |
20 | #include <stdint.h> | |
21 | #include <stdlib.h> | |
22 | #include <string.h> | |
23 | ||
24 | /* Verify that strcoll does not crash for large strings for which it cannot | |
25 | cache weight lookup results. The size is large enough to cause integer | |
26 | overflows on 32-bit as well as buffer overflows on 64-bit. The test should | |
27 | work reasonably reliably when overcommit is disabled, but it obviously | |
28 | depends on how much memory the system has. There's a limitation to this | |
29 | test in that it does not run to completion. Actually collating such a | |
30 | large string can take days and we can't have xcheck running that long. For | |
31 | that reason, we run the test for about 5 minutes and then assume that | |
32 | everything is fine if there are no crashes. */ | |
33 | #define SIZE 0x40000000ul | |
34 | ||
35 | int | |
36 | do_test (void) | |
37 | { | |
38 | if (setlocale (LC_COLLATE, "en_GB.UTF-8") == NULL) | |
39 | { | |
40 | puts ("setlocale failed, cannot test for overflow"); | |
41 | return 0; | |
42 | } | |
43 | ||
44 | char *p = malloc (SIZE); | |
45 | ||
46 | if (p == NULL) | |
47 | { | |
48 | puts ("could not allocate memory"); | |
49 | return 1; | |
50 | } | |
51 | ||
52 | memset (p, 'x', SIZE - 1); | |
53 | p[SIZE - 1] = 0; | |
54 | printf ("%d\n", strcoll (p, p)); | |
55 | return 0; | |
56 | } | |
57 | ||
58 | #define TIMEOUT 300 | |
59 | #define EXPECTED_SIGNAL SIGALRM | |
fffa1cf8 | 60 | #define EXPECTED_STATUS 0 |
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61 | #define TEST_FUNCTION do_test () |
62 | #include "../test-skeleton.c" |