mirror of
git://anongit.mindrot.org/openssh.git
synced 2024-11-28 07:14:31 +08:00
aa18063baf
[misc.c misc.h configure.ac openbsd-compat/openbsd-compat.h]
[openbsd-compat/timingsafe_bcmp.c]
Add timingsafe_bcmp(3) to libc, mention that it's already in the
kernel in kern(9), and remove it from OpenSSH.
ok deraadt@, djm@
NB. re-added under openbsd-compat/ for portable OpenSSH
35 lines
1.2 KiB
C
35 lines
1.2 KiB
C
/* $OpenBSD: timingsafe_bcmp.c,v 1.1 2010/09/24 13:33:00 matthew Exp $ */
|
|
/*
|
|
* Copyright (c) 2010 Damien Miller. All rights reserved.
|
|
*
|
|
* Permission to use, copy, modify, and distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
|
|
/* OPENBSD ORIGINAL: lib/libc/string/timingsafe_bcmp.c */
|
|
|
|
#include "includes.h"
|
|
#ifndef HAVE_TIMINGSAFE_BCMP
|
|
|
|
int
|
|
timingsafe_bcmp(const void *b1, const void *b2, size_t n)
|
|
{
|
|
const unsigned char *p1 = b1, *p2 = b2;
|
|
int ret = 0;
|
|
|
|
for (; n > 0; n--)
|
|
ret |= *p1++ ^ *p2++;
|
|
return (ret != 0);
|
|
}
|
|
|
|
#endif /* TIMINGSAFE_BCMP */
|