libsecurity_ssl/lib/sslUtils.h

   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  * sslUtils.h - - Misc. OS independant SSL utility functions
  26  */
  27
  28 #ifndef _SSLUTILS_H_
  29 #define _SSLUTILS_H_ 1
  30
  31 #include "sslTypes.h"
  32
  33 #ifdef  __cplusplus
  34 extern "C" {
  35 #endif
  36
  37 uint32_t SSLDecodeInt(
  38         const uint8_t *     p,
  39         size_t              length);
  40 uint8_t *SSLEncodeInt(
  41         uint8_t             *p,
  42         size_t              value,
  43         size_t length);
  44
  45 /* Same, but the value to encode is a size_t */
  46 size_t SSLDecodeSize(
  47       const uint8_t *     p,
  48       size_t              length);
  49 uint8_t *SSLEncodeSize(
  50       uint8_t             *p,
  51       size_t              value,
  52       size_t              length);
  53
  54 /* Same but for 64bits int */
  55 uint8_t* SSLEncodeUInt64(
  56         uint8_t             *p,
  57         sslUint64           value);
  58 void IncrementUInt64(
  59         sslUint64                       *v);
  60 void SSLDecodeUInt64(
  61     const uint8_t *p,
  62     size_t length,
  63     sslUint64 *v);
  64
  65 static inline
  66 int SSLHandshakeHeaderSize(SSLRecord *rec)
  67 {
  68     if(rec->protocolVersion==DTLS_Version_1_0)
  69         return 12;
  70     else
  71         return 4;
  72 }
  73
  74 #ifndef NDEBUG
  75 extern const char *protocolVersStr(SSLProtocolVersion prot);
  76 #endif
  77
  78 #ifdef  __cplusplus
  79 }
  80 #endif
  81
  82 #endif