1 /* $NetBSD: safe.h,v 1.3 2014/12/10 04:38:00 christos Exp $ */ 2 3 /* 4 * Copyright (C) 2013 Internet Systems Consortium, Inc. ("ISC") 5 * 6 * Permission to use, copy, modify, and/or distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH 11 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY 12 * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, 13 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM 14 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE 15 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 16 * PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 /* Id */ 20 21 #ifndef ISC_SAFE_H 22 #define ISC_SAFE_H 1 23 24 /*! \file isc/safe.h */ 25 26 #include <isc/types.h> 27 28 ISC_LANG_BEGINDECLS 29 30 isc_boolean_t 31 isc_safe_memcmp(const void *s1, const void *s2, size_t n); 32 /*%< 33 * Clone of libc memcmp() safe to differential timing attacks. 34 */ 35 36 ISC_LANG_ENDDECLS 37 38 #endif /* ISC_SAFE_H */ 39