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