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321 lines
7.7 KiB
321 lines
7.7 KiB
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/*-------------------------------------------------------------*/ |
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/*--- Public header file for the library. ---*/ |
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/*--- bzlib.h ---*/ |
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/*-------------------------------------------------------------*/ |
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/*-- |
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This file is a part of bzip2 and/or libbzip2, a program and |
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library for lossless, block-sorting data compression. |
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Copyright (C) 1996-2002 Julian R Seward. All rights reserved. |
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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. The origin of this software must not be misrepresented; you must |
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not claim that you wrote the original software. If you use this |
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software in a product, an acknowledgment in the product |
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documentation would be appreciated but is not required. |
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3. Altered source versions must be plainly marked as such, and must |
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not be misrepresented as being the original software. |
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4. The name of the author may not be used to endorse or promote |
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products derived from this software without specific prior written |
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permission. |
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THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS |
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OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
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DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE |
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GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
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WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
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NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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Julian Seward, Cambridge, UK. |
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jseward@acm.org |
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bzip2/libbzip2 version 1.0 of 21 March 2000 |
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This program is based on (at least) the work of: |
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Mike Burrows |
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David Wheeler |
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Peter Fenwick |
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Alistair Moffat |
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Radford Neal |
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Ian H. Witten |
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Robert Sedgewick |
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Jon L. Bentley |
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For more information on these sources, see the manual. |
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--*/ |
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#ifndef _BZLIB_H |
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#define _BZLIB_H |
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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#define BZ_RUN 0 |
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#define BZ_FLUSH 1 |
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#define BZ_FINISH 2 |
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#define BZ_OK 0 |
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#define BZ_RUN_OK 1 |
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#define BZ_FLUSH_OK 2 |
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#define BZ_FINISH_OK 3 |
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#define BZ_STREAM_END 4 |
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#define BZ_SEQUENCE_ERROR (-1) |
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#define BZ_PARAM_ERROR (-2) |
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#define BZ_MEM_ERROR (-3) |
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#define BZ_DATA_ERROR (-4) |
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#define BZ_DATA_ERROR_MAGIC (-5) |
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#define BZ_IO_ERROR (-6) |
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#define BZ_UNEXPECTED_EOF (-7) |
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#define BZ_OUTBUFF_FULL (-8) |
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#define BZ_CONFIG_ERROR (-9) |
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typedef |
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struct { |
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char *next_in; |
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unsigned int avail_in; |
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unsigned int total_in_lo32; |
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unsigned int total_in_hi32; |
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char *next_out; |
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unsigned int avail_out; |
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unsigned int total_out_lo32; |
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unsigned int total_out_hi32; |
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void *state; |
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void *(*bzalloc)(void *,int,int); |
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void (*bzfree)(void *,void *); |
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void *opaque; |
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} |
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bz_stream; |
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#ifndef BZ_IMPORT |
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#define BZ_EXPORT |
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#endif |
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/* Need a definitition for FILE */ |
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#include <stdio.h> |
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#if defined(_WIN32) && !defined(_X360) |
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# include <windows.h> |
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# ifdef small |
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/* windows.h define small to char */ |
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# undef small |
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# endif |
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# ifdef BZ_EXPORT |
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# define BZ_API(func) WINAPI func |
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# define BZ_EXTERN extern |
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# else |
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/* import windows dll dynamically */ |
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# define BZ_API(func) (WINAPI * func) |
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# define BZ_EXTERN |
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# endif |
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#else |
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# define BZ_API(func) func |
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# define BZ_EXTERN extern |
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#endif |
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/*-- Core (low-level) library functions --*/ |
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BZ_EXTERN int BZ_API(BZ2_bzCompressInit) ( |
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bz_stream* strm, |
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int blockSize100k, |
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int verbosity, |
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int workFactor |
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); |
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BZ_EXTERN int BZ_API(BZ2_bzCompress) ( |
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bz_stream* strm, |
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int action |
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); |
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BZ_EXTERN int BZ_API(BZ2_bzCompressEnd) ( |
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bz_stream* strm |
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); |
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BZ_EXTERN int BZ_API(BZ2_bzDecompressInit) ( |
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bz_stream *strm, |
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int verbosity, |
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int small |
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); |
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BZ_EXTERN int BZ_API(BZ2_bzDecompress) ( |
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bz_stream* strm |
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); |
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BZ_EXTERN int BZ_API(BZ2_bzDecompressEnd) ( |
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bz_stream *strm |
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); |
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/*-- High(er) level library functions --*/ |
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#ifndef BZ_NO_STDIO |
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#define BZ_MAX_UNUSED 5000 |
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typedef void BZFILE; |
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BZ_EXTERN BZFILE* BZ_API(BZ2_bzReadOpen) ( |
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int* bzerror, |
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FILE* f, |
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int verbosity, |
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int small, |
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void* unused, |
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int nUnused |
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); |
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BZ_EXTERN void BZ_API(BZ2_bzReadClose) ( |
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int* bzerror, |
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BZFILE* b |
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); |
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BZ_EXTERN void BZ_API(BZ2_bzReadGetUnused) ( |
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int* bzerror, |
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BZFILE* b, |
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void** unused, |
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int* nUnused |
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); |
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BZ_EXTERN int BZ_API(BZ2_bzRead) ( |
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int* bzerror, |
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BZFILE* b, |
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void* buf, |
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int len |
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); |
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BZ_EXTERN BZFILE* BZ_API(BZ2_bzWriteOpen) ( |
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int* bzerror, |
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FILE* f, |
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int blockSize100k, |
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int verbosity, |
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int workFactor |
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); |
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BZ_EXTERN void BZ_API(BZ2_bzWrite) ( |
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int* bzerror, |
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BZFILE* b, |
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void* buf, |
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int len |
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); |
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BZ_EXTERN void BZ_API(BZ2_bzWriteClose) ( |
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int* bzerror, |
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BZFILE* b, |
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int abandon, |
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unsigned int* nbytes_in, |
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unsigned int* nbytes_out |
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); |
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BZ_EXTERN void BZ_API(BZ2_bzWriteClose64) ( |
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int* bzerror, |
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BZFILE* b, |
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int abandon, |
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unsigned int* nbytes_in_lo32, |
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unsigned int* nbytes_in_hi32, |
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unsigned int* nbytes_out_lo32, |
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unsigned int* nbytes_out_hi32 |
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); |
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#endif |
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/*-- Utility functions --*/ |
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BZ_EXTERN int BZ_API(BZ2_bzBuffToBuffCompress) ( |
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char* dest, |
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unsigned int* destLen, |
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char* source, |
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unsigned int sourceLen, |
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int blockSize100k, |
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int verbosity, |
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int workFactor |
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); |
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BZ_EXTERN int BZ_API(BZ2_bzBuffToBuffDecompress) ( |
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char* dest, |
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unsigned int* destLen, |
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char* source, |
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unsigned int sourceLen, |
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int small, |
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int verbosity |
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); |
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/*-- |
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Code contributed by Yoshioka Tsuneo |
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(QWF00133@niftyserve.or.jp/tsuneo-y@is.aist-nara.ac.jp), |
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to support better zlib compatibility. |
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This code is not _officially_ part of libbzip2 (yet); |
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I haven't tested it, documented it, or considered the |
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threading-safeness of it. |
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If this code breaks, please contact both Yoshioka and me. |
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--*/ |
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BZ_EXTERN const char * BZ_API(BZ2_bzlibVersion) ( |
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void |
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); |
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#ifndef BZ_NO_STDIO |
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BZ_EXTERN BZFILE * BZ_API(BZ2_bzopen) ( |
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const char *path, |
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const char *mode |
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); |
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BZ_EXTERN BZFILE * BZ_API(BZ2_bzdopen) ( |
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int fd, |
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const char *mode |
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); |
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BZ_EXTERN int BZ_API(BZ2_bzread) ( |
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BZFILE* b, |
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void* buf, |
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int len |
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); |
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BZ_EXTERN int BZ_API(BZ2_bzwrite) ( |
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BZFILE* b, |
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void* buf, |
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int len |
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); |
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BZ_EXTERN int BZ_API(BZ2_bzflush) ( |
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BZFILE* b |
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); |
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BZ_EXTERN void BZ_API(BZ2_bzclose) ( |
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BZFILE* b |
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); |
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BZ_EXTERN const char * BZ_API(BZ2_bzerror) ( |
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BZFILE *b, |
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int *errnum |
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); |
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#endif |
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#ifdef __cplusplus |
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} |
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#endif |
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#endif |
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/*-------------------------------------------------------------*/ |
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/*--- end bzlib.h ---*/ |
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/*-------------------------------------------------------------*/
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