/*-
  * Copyright (c) 2001-2003 Allan Saddi <allan@saddi.com>
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY ALLAN SADDI AND HIS CONTRIBUTORS ``AS IS''
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  * ARE DISCLAIMED.  IN NO EVENT SHALL ALLAN SADDI OR HIS CONTRIBUTORS BE
  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  * POSSIBILITY OF SUCH DAMAGE.
  *
  * $Id: sha256.h 348 2003-02-23 22:12:06Z asaddi $
  */
 
 #ifndef _SHA256_H
 #define _SHA256_H
 
 #include "cltypes.h"
 
 #define SHA256_HASH_SIZE 32
 
 /* Hash size in 32-bit words */
 #define SHA256_HASH_WORDS 8
 
 struct _SHA256Context {
   uint64_t totalLength;
   uint32_t hash[SHA256_HASH_WORDS];
   uint32_t bufferLength;
   union {
     uint32_t words[16];
     uint8_t bytes[64];
   } buffer;
 #ifdef RUNTIME_ENDIAN
   int littleEndian;
 #endif /* RUNTIME_ENDIAN */
 };
 
 typedef struct _SHA256Context SHA256_CTX;
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
 void sha256_init (SHA256_CTX *sc);
 void sha256_update (SHA256_CTX *sc, const void *data, uint32_t len);
 void sha256_final (SHA256_CTX *sc, uint8_t hash[SHA256_HASH_SIZE]);
 
 #ifdef __cplusplus
 }
 #endif
 
 #endif /* !_SHA256_H */