/*
*   SHA-256 implementation.
*
*   Copyright (c) 2010 Ilya O. Levin, http://www.literatecode.com
*
*   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.
*/
#ifdef _MSC_VER
#ifndef uint8_t
typedef unsigned __int8 uint8_t;
#endif
#ifndef uint32_t
typedef unsigned __int32 uint32_t;
#endif
#ifndef uint64_t
typedef __int64 int64_t;
typedef unsigned __int64 uint64_t;
#endif
#else
#include <stdint.h>
#endif

#ifdef __cplusplus
extern "C"
{
#endif

   typedef struct {
       uint32_t buf[16];
       uint32_t hash[8];
       uint32_t len[2];
   } sha256_context;

   void sha256_init(sha256_context *);
   void sha256_hash(sha256_context *, uint8_t * /* data */, uint32_t /* len */);
   void sha256_done(sha256_context *, uint8_t * /* hash */);

#ifdef __cplusplus
}
#endif