| /* |
| * This file is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License, version 2, |
| * as published by the Free Software Foundation. |
| * |
| * In addition to the permissions in the GNU General Public License, |
| * the authors give you unlimited permission to link the compiled |
| * version of this file into combinations with other programs, |
| * and to distribute those combinations without any restriction |
| * coming from the use of this file. (The General Public License |
| * restrictions do apply in other respects; for example, they cover |
| * modification of the file, and distribution when not linked into |
| * a combined executable.) |
| * |
| * This file is distributed in the hope that it will be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; see the file COPYING. If not, write to |
| * the Free Software Foundation, 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| */ |
| |
| #include "common.h" |
| #include "hash.h" |
| |
| #if defined(PPC_SHA1) |
| # include "ppc/sha1.h" |
| #elif defined(OPENSSL_SHA1) |
| # include <openssl/sha.h> |
| #else |
| # include "block-sha1/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) |
| { |
| 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); |
| } |