From aa18063baf35e303832d9ec58204ffaab221de85 Mon Sep 17 00:00:00 2001 From: Damien Miller Date: Thu, 7 Oct 2010 21:25:27 +1100 Subject: - matthew@cvs.openbsd.org 2010/09/24 13:33:00 [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 --- openbsd-compat/timingsafe_bcmp.c | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 openbsd-compat/timingsafe_bcmp.c (limited to 'openbsd-compat/timingsafe_bcmp.c') diff --git a/openbsd-compat/timingsafe_bcmp.c b/openbsd-compat/timingsafe_bcmp.c new file mode 100644 index 000000000..7e28c0e2a --- /dev/null +++ b/openbsd-compat/timingsafe_bcmp.c @@ -0,0 +1,34 @@ +/* $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 */ -- cgit v1.2.3