2 /*-------------------------------------------------------------*/
3 /*--- Public header file for the library. ---*/
5 /*-------------------------------------------------------------*/
8 This file is a part of bzip2 and/or libbzip2, a program and
9 library for lossless, block-sorting data compression.
11 Copyright (C) 1996-2000 Julian R Seward. All rights reserved.
13 Redistribution and use in source and binary forms, with or without
14 modification, are permitted provided that the following conditions
17 1. Redistributions of source code must retain the above copyright
18 notice, this list of conditions and the following disclaimer.
20 2. The origin of this software must not be misrepresented; you must
21 not claim that you wrote the original software. If you use this
22 software in a product, an acknowledgment in the product
23 documentation would be appreciated but is not required.
25 3. Altered source versions must be plainly marked as such, and must
26 not be misrepresented as being the original software.
28 4. The name of the author may not be used to endorse or promote
29 products derived from this software without specific prior written
32 THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
33 OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
34 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
35 ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
36 DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
37 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
38 GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
39 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
40 WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
41 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
42 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
44 Julian Seward, Cambridge, UK.
46 bzip2/libbzip2 version 1.0 of 21 March 2000
48 This program is based on (at least) the work of:
58 For more information on these sources, see the manual.
76 #define BZ_FINISH_OK 3
77 #define BZ_STREAM_END 4
78 #define BZ_SEQUENCE_ERROR (-1)
79 #define BZ_PARAM_ERROR (-2)
80 #define BZ_MEM_ERROR (-3)
81 #define BZ_DATA_ERROR (-4)
82 #define BZ_DATA_ERROR_MAGIC (-5)
83 #define BZ_IO_ERROR (-6)
84 #define BZ_UNEXPECTED_EOF (-7)
85 #define BZ_OUTBUFF_FULL (-8)
86 #define BZ_CONFIG_ERROR (-9)
91 unsigned int avail_in
;
92 unsigned int total_in_lo32
;
93 unsigned int total_in_hi32
;
96 unsigned int avail_out
;
97 unsigned int total_out_lo32
;
98 unsigned int total_out_hi32
;
102 void *(*bzalloc
)(void *,int,int);
103 void (*bzfree
)(void *,void *);
115 # include <windows.h>
117 /* windows.h define small to char */
121 # define BZ_API(func) WINAPI func
122 # define BZ_EXTERN extern
124 /* import windows dll dynamically */
125 # define BZ_API(func) (WINAPI * func)
129 # define BZ_API(func) func
130 # define BZ_EXTERN extern
134 /*-- Core (low-level) library functions --*/
136 BZ_EXTERN
int BZ_API(BZ2_bzCompressInit
) (
143 BZ_EXTERN
int BZ_API(BZ2_bzCompress
) (
148 BZ_EXTERN
int BZ_API(BZ2_bzCompressEnd
) (
152 BZ_EXTERN
int BZ_API(BZ2_bzDecompressInit
) (
158 BZ_EXTERN
int BZ_API(BZ2_bzDecompress
) (
162 BZ_EXTERN
int BZ_API(BZ2_bzDecompressEnd
) (
168 /*-- High(er) level library functions --*/
171 #define BZ_MAX_UNUSED 5000
175 BZ_EXTERN BZFILE
* BZ_API(BZ2_bzReadOpen
) (
184 BZ_EXTERN
void BZ_API(BZ2_bzReadClose
) (
189 BZ_EXTERN
void BZ_API(BZ2_bzReadGetUnused
) (
196 BZ_EXTERN
int BZ_API(BZ2_bzRead
) (
203 BZ_EXTERN BZFILE
* BZ_API(BZ2_bzWriteOpen
) (
211 BZ_EXTERN
void BZ_API(BZ2_bzWrite
) (
218 BZ_EXTERN
void BZ_API(BZ2_bzWriteClose
) (
222 unsigned int* nbytes_in
,
223 unsigned int* nbytes_out
226 BZ_EXTERN
void BZ_API(BZ2_bzWriteClose64
) (
230 unsigned int* nbytes_in_lo32
,
231 unsigned int* nbytes_in_hi32
,
232 unsigned int* nbytes_out_lo32
,
233 unsigned int* nbytes_out_hi32
238 /*-- Utility functions --*/
240 BZ_EXTERN
int BZ_API(BZ2_bzBuffToBuffCompress
) (
242 unsigned int* destLen
,
244 unsigned int sourceLen
,
250 BZ_EXTERN
int BZ_API(BZ2_bzBuffToBuffDecompress
) (
252 unsigned int* destLen
,
254 unsigned int sourceLen
,
261 Code contributed by Yoshioka Tsuneo
262 (QWF00133@niftyserve.or.jp/tsuneo-y@is.aist-nara.ac.jp),
263 to support better zlib compatibility.
264 This code is not _officially_ part of libbzip2 (yet);
265 I haven't tested it, documented it, or considered the
266 threading-safeness of it.
267 If this code breaks, please contact both Yoshioka and me.
270 BZ_EXTERN
const char * BZ_API(BZ2_bzlibVersion
) (
275 BZ_EXTERN BZFILE
* BZ_API(BZ2_bzopen
) (
280 BZ_EXTERN BZFILE
* BZ_API(BZ2_bzdopen
) (
285 BZ_EXTERN
int BZ_API(BZ2_bzread
) (
291 BZ_EXTERN
int BZ_API(BZ2_bzwrite
) (
297 BZ_EXTERN
int BZ_API(BZ2_bzflush
) (
301 BZ_EXTERN
void BZ_API(BZ2_bzclose
) (
305 BZ_EXTERN
const char * BZ_API(BZ2_bzerror
) (
317 /*-------------------------------------------------------------*/
318 /*--- end bzlib.h ---*/
319 /*-------------------------------------------------------------*/