lib/glibc
1
0
Fork 0
mirror of https://sourceware.org/git/glibc.git synced 2025-07-29 11:41:21 +03:00
Code Activity

Fix v9/64-bit strcmp when string ends in multiple zero bytes.

Browse Source 
[BZ #16885]
	* sysdeps/sparc/sparc64/strcmp.S: Fix end comparison handling when
	multiple zero bytes exist at the end of a string.
	Reported by Aurelien Jarno <aurelien@aurel32.net>

	* string/test-strcmp.c (check): Add explicit test for situations where
	there are multiple zero bytes after the first.
This commit is contained in:
David S. Miller
2014-04-30 12:57:51 -07:00
parent 4fdfe821e2
commit 5331255b6e
3 changed files with 69 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

28
string/test-strcmp.c
View File

@ -329,6 +329,34 @@ check (void)
FOR_EACH_IMPL (impl, 0)
check_result (impl, s1 + i1, s2 + i2, exp_result);
}
/* Test cases where there are multiple zero bytes after the first. */
for (size_t i = 0; i < 16 + 1; i++)
{
s1[i] = 0x00;
s2[i] = 0x00;
}
for (size_t i = 0; i < 16; i++)
{
int exp_result;
for (int val = 0x01; val < 0x100; val++)
{
for (size_t j = 0; j < i; j++)
{
s1[j] = val;
s2[j] = val;
}
s2[i] = val;
exp_result = SIMPLE_STRCMP (s1, s2);
FOR_EACH_IMPL (impl, 0)
check_result (impl, s1, s2, exp_result);
}
}
}