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kc3-lang/kc3/libc3/hash.c

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  • libc3/hash.c 
  • /* c3
 * Copyright 2022 kmx.io <contact@kmx.io>
 *
 * Permission is hereby granted to use this software granted
 * the above copyright notice and this permission paragraph
 * are included in all copies and substantial portions of this
 * software.
 *
 * THIS SOFTWARE IS PROVIDED "AS-IS" WITHOUT ANY GUARANTEE OF
 * PURPOSE AND PERFORMANCE. IN NO EVENT WHATSOEVER SHALL THE
 * AUTHOR BE CONSIDERED LIABLE FOR THE USE AND PERFORMANCE OF
 * THIS SOFTWARE.
 */
#include <assert.h>
#include <err.h>
#include <stdlib.h>
#include "hash.h"
#include "str.h"

t_hash_context * hash_init (t_hash_context *context)
{
  assert(context);
  SHA1Init(context);
  return context;
}

t_hash_context * hash_update (t_hash_context *context,
                              const void *data, uw size)
{
  assert(context);
  assert(data);
  SHA1Update(context, data, size);
  return context;
}

uw hash_result (t_hash_context *context)
{
  u8 digest[SHA1_DIGEST_LENGTH];
  SHA1Final(digest, context);
  return *((uw *) digest);
}