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libpdel

    1: 
    2: /*
    3:  * Copyright (c) 2001-2002 Packet Design, LLC.
    4:  * All rights reserved.
    5:  * 
    6:  * Subject to the following obligations and disclaimer of warranty,
    7:  * use and redistribution of this software, in source or object code
    8:  * forms, with or without modifications are expressly permitted by
    9:  * Packet Design; provided, however, that:
   10:  * 
   11:  *    (i)  Any and all reproductions of the source or object code
   12:  *         must include the copyright notice above and the following
   13:  *         disclaimer of warranties; and
   14:  *    (ii) No rights are granted, in any manner or form, to use
   15:  *         Packet Design trademarks, including the mark "PACKET DESIGN"
   16:  *         on advertising, endorsements, or otherwise except as such
   17:  *         appears in the above copyright notice or in the software.
   18:  * 
   19:  * THIS SOFTWARE IS BEING PROVIDED BY PACKET DESIGN "AS IS", AND
   20:  * TO THE MAXIMUM EXTENT PERMITTED BY LAW, PACKET DESIGN MAKES NO
   21:  * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING
   22:  * THIS SOFTWARE, INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED
   23:  * WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE,
   24:  * OR NON-INFRINGEMENT.  PACKET DESIGN DOES NOT WARRANT, GUARANTEE,
   25:  * OR MAKE ANY REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS
   26:  * OF THE USE OF THIS SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY,
   27:  * RELIABILITY OR OTHERWISE.  IN NO EVENT SHALL PACKET DESIGN BE
   28:  * LIABLE FOR ANY DAMAGES RESULTING FROM OR ARISING OUT OF ANY USE
   29:  * OF THIS SOFTWARE, INCLUDING WITHOUT LIMITATION, ANY DIRECT,
   30:  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, PUNITIVE, OR CONSEQUENTIAL
   31:  * DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, LOSS OF
   32:  * USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY THEORY OF
   33:  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   34:  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
   35:  * THE USE OF THIS SOFTWARE, EVEN IF PACKET DESIGN IS ADVISED OF
   36:  * THE POSSIBILITY OF SUCH DAMAGE.
   37:  *
   38:  * Author: Archie Cobbs <archie@freebsd.org>
   39:  */
   40: 
   41: #ifndef _BASE64_H_
   42: #define _BASE64_H_
   43: 
   44: /*
   45:  * Base64 encoder and decoder filters
   46:  */
   47: 
   48: __BEGIN_DECLS
   49: 
   50: /*
   51:  * Get a new base 64 encoder, using the supplied character set if
   52:  * charset != NULL, or the default charset if charset == NULL.
   53:  *
   54:  * A charset is an ASCII string with 65 unique characters. The
   55:  * 65th character is used as a pad character when the input length
   56:  * is not a multiple of 3.
   57:  */
   58: extern struct	filter *b64_encoder_create(const char *charset);
   59: 
   60: /*
   61:  * Get a new base 64 decoder, using the supplied character set if
   62:  * charset != NULL, or the default charset if charset == NULL.
   63:  *
   64:  * If 'strict' is zero, then any characters in the input which
   65:  * are not valid charset characters are ignored; otherwise, they
   66:  * cause an error to be returned with errno == EINVAL.
   67:  */
   68: extern struct	filter *b64_decoder_create(const char *charset, int strict);
   69: 
   70: /*
   71:  * The RFC 2045 base 64 character set.
   72:  */
   73: extern const	char b64_rfc2045_charset[];
   74: 
   75: __END_DECLS
   76: 
   77: #endif	/* _BASE64_H_ */
   78: