diff options
author | nicoo <nicoo@debian.org> | 2020-02-12 13:42:22 +0100 |
---|---|---|
committer | Nicolas Braud-Santoni <nicolas@braud-santoni.eu> | 2020-02-12 13:42:22 +0100 |
commit | c79050aa44b8836d836c5dd22a383a073c28b74b (patch) | |
tree | 7bcca9fabd7718bf87ca600a6594f57b76d8de7d /openbsd-compat/timingsafe_bcmp.c |
Import upstream release 1.3.0
Closes: #951184
Diffstat (limited to 'openbsd-compat/timingsafe_bcmp.c')
-rw-r--r-- | openbsd-compat/timingsafe_bcmp.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/openbsd-compat/timingsafe_bcmp.c b/openbsd-compat/timingsafe_bcmp.c new file mode 100644 index 0000000..3f7b9e5 --- /dev/null +++ b/openbsd-compat/timingsafe_bcmp.c | |||
@@ -0,0 +1,35 @@ | |||
1 | /* $OpenBSD: timingsafe_bcmp.c,v 1.1 2010/09/24 13:33:00 matthew Exp $ */ | ||
2 | /* | ||
3 | * Copyright (c) 2010 Damien Miller. All rights reserved. | ||
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 | /* OPENBSD ORIGINAL: lib/libc/string/timingsafe_bcmp.c */ | ||
19 | |||
20 | #include "openbsd-compat.h" | ||
21 | |||
22 | #if !defined(HAVE_TIMINGSAFE_BCMP) | ||
23 | |||
24 | int | ||
25 | timingsafe_bcmp(const void *b1, const void *b2, size_t n) | ||
26 | { | ||
27 | const unsigned char *p1 = b1, *p2 = b2; | ||
28 | int ret = 0; | ||
29 | |||
30 | for (; n > 0; n--) | ||
31 | ret |= *p1++ ^ *p2++; | ||
32 | return (ret != 0); | ||
33 | } | ||
34 | |||
35 | #endif /* !defined(HAVE_TIMINGSAFE_BCMP) */ | ||