thodg/libgit2/src/hash/sha1.h

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• Hash : 31ecaca2
  Author :
  Date : 2021-09-30T08:11:40
  

  hash: hash functions operate on byte arrays not git_oids Separate the concerns of the hash functions from the git_oid functions. The git_oid structure will need to understand either SHA1 or SHA256; the hash functions should only deal with the appropriate one of these.

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• src/hash/sha1.h

• /*
   * Copyright (C) the libgit2 contributors. All rights reserved.
   *
   * This file is part of libgit2, distributed under the GNU GPL v2 with
   * a Linking Exception. For full terms see the included COPYING file.
   */
  
  #ifndef INCLUDE_hash_sha1_h__
  #define INCLUDE_hash_sha1_h__
  
  #include "common.h"
  
  typedef struct git_hash_sha1_ctx git_hash_sha1_ctx;
  
  #if defined(GIT_SHA1_COLLISIONDETECT)
  # include "sha1/collisiondetect.h"
  #elif defined(GIT_SHA1_COMMON_CRYPTO)
  # include "sha1/common_crypto.h"
  #elif defined(GIT_SHA1_OPENSSL)
  # include "sha1/openssl.h"
  #elif defined(GIT_SHA1_WIN32)
  # include "sha1/win32.h"
  #elif defined(GIT_SHA1_MBEDTLS)
  # include "sha1/mbedtls.h"
  #else
  # include "sha1/generic.h"
  #endif
  
  #define GIT_HASH_SHA1_SIZE 20
  
  int git_hash_sha1_global_init(void);
  
  int git_hash_sha1_ctx_init(git_hash_sha1_ctx *ctx);
  void git_hash_sha1_ctx_cleanup(git_hash_sha1_ctx *ctx);
  
  int git_hash_sha1_init(git_hash_sha1_ctx *c);
  int git_hash_sha1_update(git_hash_sha1_ctx *c, const void *data, size_t len);
  int git_hash_sha1_final(unsigned char *out, git_hash_sha1_ctx *c);
  
  #endif
  

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