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63 lines
2.0 KiB
C
63 lines
2.0 KiB
C
/* Copyright (C) 2013-2015 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <locale.h>
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#include <stdio.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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/* Verify that strcoll does not crash for large strings for which it cannot
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cache weight lookup results. The size is large enough to cause integer
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overflows on 32-bit as well as buffer overflows on 64-bit. The test should
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work reasonably reliably when overcommit is disabled, but it obviously
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depends on how much memory the system has. There's a limitation to this
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test in that it does not run to completion. Actually collating such a
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large string can take days and we can't have xcheck running that long. For
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that reason, we run the test for about 5 minutes and then assume that
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everything is fine if there are no crashes. */
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#define SIZE 0x40000000ul
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int
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do_test (void)
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{
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if (setlocale (LC_COLLATE, "en_GB.UTF-8") == NULL)
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{
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puts ("setlocale failed, cannot test for overflow");
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return 0;
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}
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char *p = malloc (SIZE);
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if (p == NULL)
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{
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puts ("could not allocate memory");
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return 1;
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}
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memset (p, 'x', SIZE - 1);
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p[SIZE - 1] = 0;
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printf ("%d\n", strcoll (p, p));
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return 0;
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}
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#define TIMEOUT 300
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#define EXPECTED_SIGNAL SIGALRM
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#define EXPECTED_STATUS 0
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#define TEST_FUNCTION do_test ()
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#include "../test-skeleton.c"
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