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/*
* pg_encode.h
* encode.c
*
* Copyright (c) 2001 Marko Kreen
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: encode.h,v 1.2 2001/03/22 03:59:10 momjian Exp $
*/
#ifndef __PG_ENCODE_H
#define __PG_ENCODE_H
/* exported functions */
Datum encode(PG_FUNCTION_ARGS);
Datum decode(PG_FUNCTION_ARGS);
typedef struct _pg_coding pg_coding;
struct _pg_coding
{
char *name;
uint (*encode_len) (uint dlen);
uint (*decode_len) (uint dlen);
uint (*encode) (uint8 *data, uint dlen, uint8 *res);
uint (*decode) (uint8 *data, uint dlen, uint8 *res);
};
/* They are for outside usage in C code, if needed */
uint hex_encode(uint8 *src, uint len, uint8 *dst);
uint hex_decode(uint8 *src, uint len, uint8 *dst);
uint b64_encode(uint8 *src, uint len, uint8 *dst);
uint b64_decode(uint8 *src, uint len, uint8 *dst);
uint hex_enc_len(uint srclen);
uint hex_dec_len(uint srclen);
uint b64_enc_len(uint srclen);
uint b64_dec_len(uint srclen);
#endif /* __PG_ENCODE_H */
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