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1 | /* Guix --- Nix package management from Guile. -*- coding: utf-8 -*- |
2 | Copyright (C) 2012 Ludovic Courtès <ludo@gnu.org> | |
3 | ||
4 | This file is part of Guix. | |
5 | ||
6 | Guix is free software; you can redistribute it and/or modify it | |
7 | under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 3 of the License, or (at | |
9 | your option) any later version. | |
10 | ||
11 | Guix is distributed in the hope that it will be useful, but | |
12 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with Guix. If not, see <http://www.gnu.org/licenses/>. */ | |
18 | ||
19 | /* An OpenSSL-like interface to GNU libgcrypt cryptographic hash | |
20 | functions. */ | |
21 | ||
22 | #pragma once | |
23 | #include <gcrypt.h> | |
24 | #include <unistd.h> | |
25 | ||
26 | extern "C" { | |
27 | ||
28 | struct guix_hash_context | |
29 | { | |
30 | gcry_md_hd_t md_handle; | |
31 | }; | |
32 | ||
33 | extern void guix_hash_init (struct guix_hash_context *ctx, gcry_md_algo_t algo); | |
34 | extern void guix_hash_update (struct guix_hash_context *ctx, const void *buffer, | |
35 | size_t len); | |
36 | extern void guix_hash_final (void *resbuf, struct guix_hash_context *ctx, | |
37 | gcry_md_algo_t algo); | |
38 | ||
39 | } |