libalpm
Arch Linux Package Manager Library
base64.h
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1/**
2 * \file base64.h
3 *
4 * Copyright (C) 2006-2010, Brainspark B.V.
5 *
6 * This file is part of PolarSSL (http://www.polarssl.org)
7 * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
8 *
9 * All rights reserved.
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program. If not, see <http://www.gnu.org/licenses/>.
23 */
24
25#ifndef BASE64_H
26#define BASE64_H
27
28#include <string.h>
29
30#define POLARSSL_ERR_BASE64_BUFFER_TOO_SMALL -0x0010 /**< Output buffer too small. */
31#define POLARSSL_ERR_BASE64_INVALID_CHARACTER -0x0012 /**< Invalid character in input. */
32
33#if 0
34/**
35 * \brief Encode a buffer into base64 format
36 *
37 * \param dst destination buffer
38 * \param dlen size of the buffer
39 * \param src source buffer
40 * \param slen amount of data to be encoded
41 *
42 * \return 0 if successful, or POLARSSL_ERR_BASE64_BUFFER_TOO_SMALL.
43 * *dlen is always updated to reflect the amount
44 * of data that has (or would have) been written.
45 *
46 * \note Call this function with *dlen = 0 to obtain the
47 * required buffer size in *dlen
48 */
49int base64_encode( unsigned char *dst, size_t *dlen,
50 const unsigned char *src, size_t slen );
51#endif
52
53/**
54 * \brief Decode a base64-formatted buffer
55 *
56 * \param dst destination buffer
57 * \param dlen size of the buffer
58 * \param src source buffer
59 * \param slen amount of data to be decoded
60 *
61 * \return 0 if successful, POLARSSL_ERR_BASE64_BUFFER_TOO_SMALL, or
62 * POLARSSL_ERR_BASE64_INVALID_DATA if the input data is not
63 * correct. *dlen is always updated to reflect the amount
64 * of data that has (or would have) been written.
65 *
66 * \note Call this function with *dlen = 0 to obtain the
67 * required buffer size in *dlen
68 */
69int base64_decode( unsigned char *dst, size_t *dlen,
70 const unsigned char *src, size_t slen );
71
72#endif /* base64.h */
int base64_decode(unsigned char *dst, size_t *dlen, const unsigned char *src, size_t slen)
Decode a base64-formatted buffer.
Definition base64.c:137