[irc/evilnet/x3.git] / src / base64.h

/* 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 2, 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 *in, size_t inlen,
			   char *out, size_t outlen);

extern size_t base64_encode_alloc (const char *in, size_t inlen, char **out);

extern bool base64_decode (const char *in, size_t inlen,
			   char *out, size_t *outlen);

extern bool base64_decode_alloc (const char *in, size_t inlen,
				 char **out, size_t *outlen);

#endif /* BASE64_H */
Commit	Line	Data
c8b4b87b MB	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
	32	extern bool isbase64 (char ch);
	33
	34	extern void base64_encode (const char *in, size_t inlen,
	35	char *out, size_t outlen);
	36
	37	extern size_t base64_encode_alloc (const char in, size_t inlen, char *out);
	38
	39	extern bool base64_decode (const char *in, size_t inlen,
	40	char out, size_t outlen);
	41
	42	extern bool base64_decode_alloc (const char *in, size_t inlen,
	43	char *out, size_t outlen);
	44
	45	#endif /* BASE64_H */