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string/tst-strcoll-overflow: Do not accept timeout as test result

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The test completes within 300 seconds if enough memory is available.
This commit is contained in:
Florian Weimer
2017-01-25 16:27:03 +01:00
parent af1a265da0
commit 5653ab12b4
3 changed files with 32 additions and 24 deletions
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38
string/tst-strcoll-overflow.c
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@@ -21,42 +21,34 @@
#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. */
#include <support/check.h>
#include <support/test-driver.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. */
#define SIZE 0x40000000ul
int
static int
do_test (void)
{
if (setlocale (LC_COLLATE, "en_GB.UTF-8") == NULL)
{
puts ("setlocale failed, cannot test for overflow");
return 0;
}
TEST_VERIFY_EXIT (setlocale (LC_COLLATE, "en_GB.UTF-8") != NULL);
char *p = malloc (SIZE);
if (p == NULL)
{
puts ("could not allocate memory");
return 1;
puts ("info: could not allocate memory, cannot run test");
return EXIT_UNSUPPORTED;
}
memset (p, 'x', SIZE - 1);
p[SIZE - 1] = 0;
printf ("%d\n", strcoll (p, p));
printf ("info: strcoll result: %d\n", strcoll (p, p));
return 0;
}
/* This test can rung for a long time, but it should complete within
this time on reasonably current hardware. */
#define TIMEOUT 300
#define EXPECTED_SIGNAL SIGALRM
#define EXPECTED_STATUS 0
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"
#include <support/test-driver.c>