mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-27 05:00:15 +00:00
63 lines
2.0 KiB
C
63 lines
2.0 KiB
C
/* Copyright (C) 2013-2016 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#include <locale.h>
|
|
#include <stdio.h>
|
|
#include <stdint.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
/* Verify that strcoll does not crash for large strings for which it cannot
|
|
cache weight lookup results. The size is large enough to cause integer
|
|
overflows on 32-bit as well as buffer overflows on 64-bit. The test should
|
|
work reasonably reliably when overcommit is disabled, but it obviously
|
|
depends on how much memory the system has. There's a limitation to this
|
|
test in that it does not run to completion. Actually collating such a
|
|
large string can take days and we can't have xcheck running that long. For
|
|
that reason, we run the test for about 5 minutes and then assume that
|
|
everything is fine if there are no crashes. */
|
|
#define SIZE 0x40000000ul
|
|
|
|
int
|
|
do_test (void)
|
|
{
|
|
if (setlocale (LC_COLLATE, "en_GB.UTF-8") == NULL)
|
|
{
|
|
puts ("setlocale failed, cannot test for overflow");
|
|
return 0;
|
|
}
|
|
|
|
char *p = malloc (SIZE);
|
|
|
|
if (p == NULL)
|
|
{
|
|
puts ("could not allocate memory");
|
|
return 1;
|
|
}
|
|
|
|
memset (p, 'x', SIZE - 1);
|
|
p[SIZE - 1] = 0;
|
|
printf ("%d\n", strcoll (p, p));
|
|
return 0;
|
|
}
|
|
|
|
#define TIMEOUT 300
|
|
#define EXPECTED_SIGNAL SIGALRM
|
|
#define EXPECTED_STATUS 0
|
|
#define TEST_FUNCTION do_test ()
|
|
#include "../test-skeleton.c"
|