/* * src / port / timingsafe_bcmp . c * * $ OpenBSD : timingsafe_bcmp . c , v 1 . 3 2015 / 08 / 31 02 : 53 : 57 guenther 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 . #include "c.h" #ifdef USE_SSL#include <openssl/crypto.h>#endif int const void *b1, const void *b2, size_t n)#ifdef USE_SSLreturn CRYPTO_memcmp(b1, b2, n);#else const unsigned char *p1 = b1,int ret = 0 ;for (; n > 0 ; n--)return (ret != 0 );#endif
Messung V0.5 in Prozent C=92 H=95 G=93
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