thodg/libgit2/src/hash.c

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• Hash : d03f5675
  Author :
  Date : 2010-06-04T18:20:31
  

  Remove the sha1.h header file and inline the content into hash.c
  
  Given that the sha1.h header file should never be included into
  any other file, since it represents an implementation detail of
  hash.c, we remove the header and inline it's content.
  
  Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
  

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• src/hash.c

• /*
   * This file is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License, version 2,
   * as published by the Free Software Foundation.
   *
   * In addition to the permissions in the GNU General Public License,
   * the authors give you unlimited permission to link the compiled
   * version of this file into combinations with other programs,
   * and to distribute those combinations without any restriction
   * coming from the use of this file.  (The General Public License
   * restrictions do apply in other respects; for example, they cover
   * modification of the file, and distribution when not linked into
   * a combined executable.)
   *
   * This file is distributed in the hope that it will be useful, but
   * WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program; see the file COPYING.  If not, write to
   * the Free Software Foundation, 51 Franklin Street, Fifth Floor,
   * Boston, MA 02110-1301, USA.
   */
  
  #include "common.h"
  #include "hash.h"
  
  #if defined(PPC_SHA1)
  # include "ppc/sha1.h"
  #elif defined(OPENSSL_SHA1)
  # include <openssl/sha.h>
  #else
  # include "block-sha1/sha1.h"
  #endif
  
  struct git_hash_ctx {
  	SHA_CTX c;
  };
  
  git_hash_ctx *git_hash_new_ctx(void)
  {
  	git_hash_ctx *ctx = git__malloc(sizeof(*ctx));
  
  	if (!ctx)
  		return NULL;
  
  	SHA1_Init(&ctx->c);
  
  	return ctx;
  }
  
  void git_hash_free_ctx(git_hash_ctx *ctx)
  {
  	free(ctx);
  }
  
  void git_hash_init(git_hash_ctx *ctx)
  {
  	assert(ctx);
  	SHA1_Init(&ctx->c);
  }
  
  void git_hash_update(git_hash_ctx *ctx, const void *data, size_t len)
  {
  	assert(ctx);
  	SHA1_Update(&ctx->c, data, len);
  }
  
  void git_hash_final(git_oid *out, git_hash_ctx *ctx)
  {
  	assert(ctx);
  	SHA1_Final(out->id, &ctx->c);
  }
  
  void git_hash_buf(git_oid *out, const void *data, size_t len)
  {
  	SHA_CTX c;
  
  	SHA1_Init(&c);
  	SHA1_Update(&c, data, len);
  	SHA1_Final(out->id, &c);
  }
  
  void git_hash_vec(git_oid *out, git_buf_vec *vec, size_t n)
  {
  	SHA_CTX c;
  	size_t i;
  
  	SHA1_Init(&c);
  	for (i = 0; i < n; i++)
  		SHA1_Update(&c, vec[i].data, vec[i].len);
  	SHA1_Final(out->id, &c);
  }
  

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