OpenCoverage

timingsafe_bcmp.c

Absolute File Name:

/home/opencoverage/opencoverage/guest-scripts/libressl/src/crypto/compat/timingsafe_bcmp.c

Source code

Line Source Count

1 /* $OpenBSD: timingsafe_bcmp.c,v 1.3 2015/08/31 02:53:57 guenther Exp $ */ -

2 /* -

4 * -

5 * Permission to use, copy, modify, and distribute this software for any -

6 * purpose with or without fee is hereby granted, provided that the above -

7 * copyright notice and this permission notice appear in all copies. -

8 * -

9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES -

10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF -

11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR -

12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -

13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN -

14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF -

15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. -

16 */ -

17 -

18 #include <string.h> -

19 -

20 int -

21 timingsafe_bcmp(const void *b1, const void *b2, size_t n) -

22 { -

23 const unsigned char *p1 = b1, *p2 = b2; -

24 int ret = 0; -

25 -

for (; n > 0; n--)

n > 0	Description
TRUE	evaluated 2165750 times by 4 tests Evaluated by: pkcs7test ssltest timingsafe tlstest
FALSE	evaluated 270120 times by 4 tests Evaluated by: pkcs7test ssltest timingsafe tlstest

270120-2165750

ret |= *p1++ ^ *p2++;

executed 2165750 times by 4 tests: ret |= *p1++ ^ *p2++;

Executed by:

2165750

return (ret != 0);

executed 270120 times by 4 tests: return (ret != 0);

Executed by:

270120

29 } -

Source code

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