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/**
* \file base64.h
*
* Base64 encoding/decoding, header.
*/
/*
* Copyright (c) 2000 Virtual Unlimited B.V.
*
* Author: Bob Deblier <bob@virtualunlimited.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#ifndef _BASE64_H
#define _BASE64_H
#include "beecrypt.h"
/**
* Decode white space character set (default).
*/
/*@-exportlocal@*/
/*@unchecked@*/ /*@observer@*/ /*@null@*/
extern const char * b64decode_whitespace;
/*@=exportlocal@*/
#define B64DECODE_WHITESPACE " \f\n\r\t\v"
/**
* Encode 72 characters per line (default).
*/
/*@-exportlocal@*/
/*@unchecked@*/
extern int b64encode_chars_per_line;
/*@=exportlocal@*/
#define B64ENCODE_CHARS_PER_LINE 72
/**
* Encode end-of-line string (default).
*/
/*@-exportlocal@*/
/*@unchecked@*/ /*@observer@*/ /*@null@*/
extern const char * b64encode_eolstr;
/*@=exportlocal@*/
#define B64ENCODE_EOLSTR "\n"
#ifdef __cplusplus
extern "C" {
#endif
/**
* Encode chunks of 3 bytes of binary input into 4 bytes of base64 output.
* @param data binary data
* @param ns no. bytes of data (0 uses strlen(data))
* @return (malloc'd) base64 string
*/
BEECRYPTAPI /*@only@*/ /*@null@*/ /*@unused@*/
char * b64encode (const void * data, size_t ns)
/*@*/;
/**
* Encode crc of binary input data into 5 bytes of base64 output.
* @param data binary data
* @param ns no. bytes of binary data
* @return (malloc'd) base64 string
*/
BEECRYPTAPI /*@only@*/ /*@null@*/ /*@unused@*/
char * b64crc (const unsigned char * data, size_t ns)
/*@*/;
/**
* Decode chunks of 4 bytes of base64 input into 3 bytes of binary output.
* @param s base64 string
* @retval datap address of (malloc'd) binary data
* @retval lenp address of no. bytes of binary data
* @return 0 on success, 1: s == NULL, 2: bad length, 3: bad char
*/
BEECRYPTAPI /*@unused@*/
int b64decode (const char * s, /*@out@*/ void ** datap, /*@out@*/ size_t *lenp)
/*@modifies *datap, *lenp @*/;
/**
*/
BEECRYPTAPI /*@only@*/ /*@null@*/ /*@unused@*/
char* b64enc(const memchunk*);
/**
*/
BEECRYPTAPI /*@only@*/ /*@null@*/ /*@unused@*/
memchunk* b64dec(const char*);
#ifdef __cplusplus
}
#endif
#endif
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