98 lines
2.4 KiB
C
98 lines
2.4 KiB
C
/*
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* Copyright (c) 2001-2002, David Janssens
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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 COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
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* AND 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 COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __CIO_H
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#define __CIO_H
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/*
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* Number of bytes written.
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*
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* returns number of bytes written
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*/
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int cio_numbytes();
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/*
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* Get position in byte stream.
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*
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* return position in bytes
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*/
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int cio_tell();
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/*
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* Set position in byte stream.
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*
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* pos : position, in number of bytes, from the beginning of the stream
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*/
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void cio_seek(int pos);
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/*
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* Number of bytes left before the end of the stream.
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*
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* Returns the number of bytes before the end of the stream
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*/
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int cio_numbytesleft();
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/*
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* Get pointer to the current position in the stream.
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*
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* return : pointer to the position
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*/
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unsigned char *cio_getbp();
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/*
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* Initialize byte IO
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*
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* bp : destination/source stream
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* len : length of the stream
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*/
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void cio_init(unsigned char *bp, int len);
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/*
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* Write some bytes.
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*
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* v : value to write
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* n : number of bytes to write
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*/
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void cio_write(unsigned int v, int n);
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/*
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* Read some bytes.
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*
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* n : number of bytes to read
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*
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* return : value of the n bytes read
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*/
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unsigned int cio_read(int n);
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/*
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* Skip some bytes.
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*
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* n : number of bytes to skip
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*/
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void cio_skip(int n);
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#endif
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