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- /* base64.h -- Encode binary data using printable characters.
- Copyright (C) 2004, 2005, 2006 Free Software Foundation, Inc.
- Written by Simon Josefsson.
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 3, or (at your option)
- any later version.
- This program 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; if not, write to the Free Software Foundation,
- Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
- #ifndef BASE64_H
- # define BASE64_H
- /* Get size_t. */
- # include <stddef.h>
- /* Get bool. */
- # include <stdbool.h>
- /* This uses that the expression (n+(k-1))/k means the smallest
- integer >= n/k, i.e., the ceiling of n/k. */
- # define BASE64_LENGTH(inlen) ((((inlen) + 2) / 3) * 4)
- extern bool isbase64 (char ch);
- extern void base64_encode (const char *restrict in, size_t inlen,
- char *restrict out, size_t outlen);
- extern size_t base64_encode_alloc (const char *in, size_t inlen, char **out);
- extern bool base64_decode (const char *restrict in, size_t inlen,
- char *restrict out, size_t *outlen);
- extern bool base64_decode_alloc (const char *in, size_t inlen,
- char **out, size_t *outlen);
- #endif /* BASE64_H */
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