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base64.h
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1/* base64.h -- Encode binary data using printable characters.
2 Copyright (C) 2004, 2005, 2006 Free Software Foundation, Inc.
3 Written by Simon Josefsson.
4
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2, or (at your option)
8 any later version.
9
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software Foundation,
17 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
18
19#ifndef BASE64_H
20# define BASE64_H
21
22/* Get size_t. */
23# include <stddef.h>
24
25/* Get bool. */
26# include <stdbool.h>
27
28/* This uses that the expression (n+(k-1))/k means the smallest
29 integer >= n/k, i.e., the ceiling of n/k. */
30# define BASE64_LENGTH(inlen) ((((inlen) + 2) / 3) * 4)
31
32extern bool isbase64 (char ch);
33
34extern void base64_encode (const char *in, size_t inlen,
35 char *out, size_t outlen);
36
37extern size_t base64_encode_alloc (const char *in, size_t inlen, char **out);
38
39extern bool base64_decode (const char *in, size_t inlen,
40 char *out, size_t *outlen);
41
42extern bool base64_decode_alloc (const char *in, size_t inlen,
43 char **out, size_t *outlen);
44
45#endif /* BASE64_H */
isbase64
bool isbase64(char ch)
Definition base64.c:284
base64_decode
bool base64_decode(const char *in, size_t inlen, char *out, size_t *outlen)
Definition base64.c:301
base64_encode_alloc
size_t base64_encode_alloc(const char *in, size_t inlen, char **out)
Definition base64.c:114
base64_encode
void base64_encode(const char *in, size_t inlen, char *out, size_t outlen)
Definition base64.c:68
base64_decode_alloc
bool base64_decode_alloc(const char *in, size_t inlen, char **out, size_t *outlen)
Definition base64.c:387