36 lines
1.5 KiB
C
36 lines
1.5 KiB
C
/*
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* Apple // emulator for *ix
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*
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* This software package is subject to the GNU General Public License
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* version 3 or later (your choice) as published by the Free Software
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* Foundation.
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*
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* Copyright 2013-2017 Aaron Culliney
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*
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*/
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#ifndef _ZLIB_HELPERS_H_
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#define _ZLIB_HELPERS_H_
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#include "common.h"
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// augmented error codes/strings (not actually from zlib routines)
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#define ZERR_UNKNOWN "Unknown zlib error"
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#define ZERR_INFLATE_OPEN_DEST "Error opening destination file for inflation"
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#define ZERR_INFLATE_WRITE_DEST "Error writing destination file for inflation"
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#define ZERR_DEFLATE_OPEN_SOURCE "Error opening source file for deflation"
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#define ZERR_DEFLATE_READ_SOURCE "Error reading source file for deflation"
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// Inflate/uncompress from file descriptor into previously allocated buffer of expected_bytes length. Underlying file
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// can either be gzipped or not. This is meant for readonly disk images.
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const char *zlib_inflate_to_buffer(int fd, const unsigned int expected_bytescount, uint8_t *buf);
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// Inflate/uncompress from file descriptor back into itself. Underlying file can either be gzipped or not. This is
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// meant for read/write disk images.
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const char *zlib_inflate_inplace(int fd, const unsigned int expected_bytescount, bool *is_gzipped);
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// Deflate/compress from buffer to buffer. This is meant for ejecting read/write disk images.
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const char *zlib_deflate_buffer(const uint8_t *src, const unsigned int src_bytescount, uint8_t *dst, OUTPARM off_t *dst_size);
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#endif
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