| /* |
| * Copyright (C) 2009-2012 the libgit2 contributors |
| * |
| * This file is part of libgit2, distributed under the GNU GPL v2 with |
| * a Linking Exception. For full terms see the included COPYING file. |
| */ |
| |
| #include "common.h" |
| #include "hash.h" |
| |
| #if defined(PPC_SHA1) |
| # include "ppc/sha1.h" |
| #else |
| # include "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) |
| { |
| git__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); |
| } |