1/* 2 * Copyright (c) 2000-2001,2005-2007,2010-2012 Apple Inc. All Rights Reserved. 3 * 4 * @APPLE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. Please obtain a copy of the License at 10 * http://www.opensource.apple.com/apsl/ and read it before using this 11 * file. 12 * 13 * The Original Code and all software distributed under the License are 14 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 15 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 16 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 18 * Please see the License for the specific language governing rights and 19 * limitations under the License. 20 * 21 * @APPLE_LICENSE_HEADER_END@ 22 */ 23 24/* 25 * sslDigests.c - Interface between SSL and SHA, MD5 digest implementations 26 */ 27 28#include "sslMemory.h" 29#include "sslDigests.h" 30#include <Security/SecBase.h> 31 32#define DIGEST_PRINT 0 33#if DIGEST_PRINT 34#define dgprintf(s) printf s 35#else 36#define dgprintf(s) 37#endif 38 39 40/* 41 * Public general hash functions 42 */ 43 44/* 45 * A convenience wrapper for HashReference.clone, which has the added benefit of 46 * allocating the state buffer for the caller. 47 */ 48OSStatus 49CloneHashState( 50 const HashReference *ref, 51 const SSLBuffer *state, 52 SSLBuffer *newState) 53{ 54 OSStatus err; 55 if ((err = SSLAllocBuffer(newState, ref->contextSize))) 56 return err; 57 return ref->clone(state, newState); 58} 59 60/* 61 * Wrapper for HashReference.init. 62 */ 63OSStatus 64ReadyHash(const HashReference *ref, SSLBuffer *state) 65{ 66 OSStatus err; 67 if ((err = SSLAllocBuffer(state, ref->contextSize))) 68 return err; 69 return ref->init(state); 70} 71 72/* 73 * Wrapper for HashReference.close. Tolerates NULL state and frees it if it's 74 * there. 75 */ 76OSStatus CloseHash(const HashReference *ref, SSLBuffer *state) 77{ 78 OSStatus serr; 79 80 if(state->data == NULL) { 81 return errSecSuccess; 82 } 83 serr = ref->close(state); 84 if(serr) { 85 return serr; 86 } 87 return SSLFreeBuffer(state); 88} 89