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320 lines
7.6 KiB
C
320 lines
7.6 KiB
C
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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) 1996-2000 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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#ifdef _WIN32
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# include <stdio.h>
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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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