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/*
* 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_hash_common_crypto_h__
#define INCLUDE_hash_hash_common_crypto_h__
#include "hash.h"
#include <CommonCrypto/CommonDigest.h>
struct git_hash_ctx {
CC_SHA1_CTX c;
};
#define CC_LONG_MAX ((CC_LONG)-1)
#define git_hash_global_init() 0
#define git_hash_ctx_init(ctx) git_hash_init(ctx)
#define git_hash_ctx_cleanup(ctx)
GIT_INLINE(int) git_hash_init(git_hash_ctx *ctx)
{
assert(ctx);
CC_SHA1_Init(&ctx->c);
return 0;
}
GIT_INLINE(int) git_hash_update(git_hash_ctx *ctx, const void *_data, size_t len)
{
const unsigned char *data = _data;
assert(ctx);
while (len > 0) {
CC_LONG chunk = (len > CC_LONG_MAX) ? CC_LONG_MAX : (CC_LONG)len;
CC_SHA1_Update(&ctx->c, data, chunk);
data += chunk;
len -= chunk;
}
return 0;
}
GIT_INLINE(int) git_hash_final(git_oid *out, git_hash_ctx *ctx)
{
assert(ctx);
CC_SHA1_Final(out->id, &ctx->c);
return 0;
}
#endif
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