src/hash.h

   1 /*
   2  * Copyright (C) the libgit2 contributors. All rights reserved.
   3  *
   4  * This file is part of libgit2, distributed under the GNU GPL v2 with
   5  * a Linking Exception. For full terms see the included COPYING file.
   6  */
   7
   8 #ifndef INCLUDE_hash_h__
   9 #define INCLUDE_hash_h__
  10
  11 #include "common.h"
  12
  13 #include "git2/oid.h"
  14
  15 typedef struct {
  16         void *data;
  17         size_t len;
  18 } git_buf_vec;
  19
  20 typedef enum {
  21         GIT_HASH_ALGO_UNKNOWN = 0,
  22         GIT_HASH_ALGO_SHA1,
  23 } git_hash_algo_t;
  24
  25 #include "hash/sha1.h"
  26
  27 typedef struct git_hash_ctx {
  28         union {
  29                 git_hash_sha1_ctx sha1;
  30         } ctx;
  31         git_hash_algo_t algo;
  32 } git_hash_ctx;
  33
  34 int git_hash_global_init(void);
  35
  36 int git_hash_ctx_init(git_hash_ctx *ctx);
  37 void git_hash_ctx_cleanup(git_hash_ctx *ctx);
  38
  39 int git_hash_init(git_hash_ctx *c);
  40 int git_hash_update(git_hash_ctx *c, const void *data, size_t len);
  41 int git_hash_final(git_oid *out, git_hash_ctx *c);
  42
  43 int git_hash_buf(git_oid *out, const void *data, size_t len);
  44 int git_hash_vec(git_oid *out, git_buf_vec *vec, size_t n);
  45
  46 #endif