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62 lines
1.5 KiB
Plaintext
62 lines
1.5 KiB
Plaintext
/*
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* Copyright (C) the libgit2 contributors. All rights reserved.
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*
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* This file is part of libgit2, distributed under the GNU GPL v2 with
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* a Linking Exception. For full terms see the included COPYING file.
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*/
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#ifndef INCLUDE_hash_h__
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#define INCLUDE_hash_h__
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#include "git2_util.h"
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#include "hash/sha.h"
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typedef struct {
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void *data;
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size_t len;
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} git_str_vec;
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typedef enum {
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GIT_HASH_ALGORITHM_NONE = 0,
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GIT_HASH_ALGORITHM_SHA1,
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GIT_HASH_ALGORITHM_SHA256
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} git_hash_algorithm_t;
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#define GIT_HASH_MAX_SIZE GIT_HASH_SHA256_SIZE
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typedef struct git_hash_ctx {
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union {
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git_hash_sha1_ctx sha1;
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git_hash_sha256_ctx sha256;
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} ctx;
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git_hash_algorithm_t algorithm;
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} git_hash_ctx;
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int git_hash_global_init(void);
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int git_hash_ctx_init(git_hash_ctx *ctx, git_hash_algorithm_t algorithm);
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void git_hash_ctx_cleanup(git_hash_ctx *ctx);
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int git_hash_init(git_hash_ctx *c);
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int git_hash_update(git_hash_ctx *c, const void *data, size_t len);
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int git_hash_final(unsigned char *out, git_hash_ctx *c);
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int git_hash_buf(unsigned char *out, const void *data, size_t len, git_hash_algorithm_t algorithm);
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int git_hash_vec(unsigned char *out, git_str_vec *vec, size_t n, git_hash_algorithm_t algorithm);
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int git_hash_fmt(char *out, unsigned char *hash, size_t hash_len);
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GIT_INLINE(size_t) git_hash_size(git_hash_algorithm_t algorithm) {
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switch (algorithm) {
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case GIT_HASH_ALGORITHM_SHA1:
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return GIT_HASH_SHA1_SIZE;
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case GIT_HASH_ALGORITHM_SHA256:
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return GIT_HASH_SHA256_SIZE;
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default:
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return 0;
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}
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}
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#endif
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