libyahoo2/sha1.h

   1 /*-
   2  * Copyright (c) 2001-2003 Allan Saddi <allan@saddi.com>
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY ALLAN SADDI AND HIS CONTRIBUTORS ``AS IS''
  15  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL ALLAN SADDI OR HIS CONTRIBUTORS BE
  18  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  19  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  20  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  21  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  22  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  23  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  24  * POSSIBILITY OF SUCH DAMAGE.
  25  */
  26
  27 #ifndef _SHA1_H
  28 #define _SHA1_H
  29
  30 #if HAVE_INTTYPES_H
  31 # include <inttypes.h>
  32 #else
  33 # if HAVE_STDINT_H
  34 #  include <stdint.h>
  35 # endif
  36 #endif
  37
  38 #define SHA1_HASH_SIZE 20
  39
  40 /* Hash size in 32-bit words */
  41 #define SHA1_HASH_WORDS 5
  42
  43 struct _SHA1Context {
  44         uint64_t totalLength;
  45         uint32_t hash[SHA1_HASH_WORDS];
  46         uint32_t bufferLength;
  47         union {
  48                 uint32_t words[16];
  49                 uint8_t bytes[64];
  50         } buffer;
  51 #ifdef RUNTIME_ENDIAN
  52         int littleEndian;
  53 #endif                          /* RUNTIME_ENDIAN */
  54 };
  55
  56 typedef struct _SHA1Context SHA1Context;
  57
  58 #ifdef __cplusplus
  59 extern "C" {
  60 #endif
  61
  62         void SHA1Init(SHA1Context *sc);
  63         void SHA1Update(SHA1Context *sc, const void *data, uint32_t len);
  64         void SHA1Final(SHA1Context *sc, uint8_t hash[SHA1_HASH_SIZE]);
  65
  66 #ifdef __cplusplus
  67 }
  68 #endif
  69 #endif                          /* _SHA1_H */