1 
2 /*-------------------------------------------------------------*/
3 /*--- Public header file for the library.                   ---*/
4 /*---                                               bzlib.h ---*/
5 /*-------------------------------------------------------------*/
6 
7 /* ------------------------------------------------------------------
8    This file is part of bzip2/libbzip2, a program and library for
9    lossless, block-sorting data compression.
10 
11    bzip2/libbzip2 version 1.0.6 of 6 September 2010
12    Copyright (C) 1996-2010 Julian Seward <jseward@bzip.org>
13 
14    Please read the WARNING, DISCLAIMER and PATENTS sections in the
15    README file.
16 
17    This program is released under the terms of the license contained
18    in the file LICENSE.
19    ------------------------------------------------------------------ */
20 
21 
22 #ifndef _BZLIB_H
23 #define _BZLIB_H
24 
25 #ifdef __cplusplus
26 extern "C" {
27 #endif
28 
29 #define BZ_RUN               0
30 #define BZ_FLUSH             1
31 #define BZ_FINISH            2
32 
33 #define BZ_OK                0
34 #define BZ_RUN_OK            1
35 #define BZ_FLUSH_OK          2
36 #define BZ_FINISH_OK         3
37 #define BZ_STREAM_END        4
38 #define BZ_SEQUENCE_ERROR    (-1)
39 #define BZ_PARAM_ERROR       (-2)
40 #define BZ_MEM_ERROR         (-3)
41 #define BZ_DATA_ERROR        (-4)
42 #define BZ_DATA_ERROR_MAGIC  (-5)
43 #define BZ_IO_ERROR          (-6)
44 #define BZ_UNEXPECTED_EOF    (-7)
45 #define BZ_OUTBUFF_FULL      (-8)
46 #define BZ_CONFIG_ERROR      (-9)
47 
48 typedef
49    struct {
50       char *next_in;
51       unsigned int avail_in;
52       unsigned int total_in_lo32;
53       unsigned int total_in_hi32;
54 
55       char *next_out;
56       unsigned int avail_out;
57       unsigned int total_out_lo32;
58       unsigned int total_out_hi32;
59 
60       void *state;
61 
62       void *(*bzalloc)(void *,int,int);
63       void (*bzfree)(void *,void *);
64       void *opaque;
65    }
66    bz_stream;
67 
68 
69 #ifndef BZ_IMPORT
70 #define BZ_EXPORT
71 #endif
72 
73 #ifndef BZ_NO_STDIO
74 /* Need a definitition for FILE */
75 #include <stdio.h>
76 #endif
77 
78 #ifdef _WIN32
79 #   include <windows.h>
80 #   ifdef small
81       /* windows.h define small to char */
82 #      undef small
83 #   endif
84 #   ifdef BZ_EXPORT
85 #   define BZ_API(func) WINAPI func
86 #   define BZ_EXTERN extern
87 #   else
88    /* import windows dll dynamically */
89 #   define BZ_API(func) (WINAPI * func)
90 #   define BZ_EXTERN
91 #   endif
92 #else
93 #   define BZ_API(func) func
94 #   define BZ_EXTERN extern
95 #endif
96 
97 
98 /*-- Core (low-level) library functions --*/
99 
100 BZ_EXTERN int BZ_API(BZ2_bzCompressInit) (
101       bz_stream* strm,
102       int        blockSize100k,
103       int        verbosity,
104       int        workFactor
105    );
106 
107 BZ_EXTERN int BZ_API(BZ2_bzCompress) (
108       bz_stream* strm,
109       int action
110    );
111 
112 BZ_EXTERN int BZ_API(BZ2_bzCompressEnd) (
113       bz_stream* strm
114    );
115 
116 BZ_EXTERN int BZ_API(BZ2_bzDecompressInit) (
117       bz_stream *strm,
118       int       verbosity,
119       int       small
120    );
121 
122 BZ_EXTERN int BZ_API(BZ2_bzDecompress) (
123       bz_stream* strm
124    );
125 
126 BZ_EXTERN int BZ_API(BZ2_bzDecompressEnd) (
127       bz_stream *strm
128    );
129 
130 
131 
132 /*-- High(er) level library functions --*/
133 
134 #ifndef BZ_NO_STDIO
135 #define BZ_MAX_UNUSED 5000
136 
137 typedef void BZFILE;
138 
139 BZ_EXTERN BZFILE* BZ_API(BZ2_bzReadOpen) (
140       int*  bzerror,
141       FILE* f,
142       int   verbosity,
143       int   small,
144       void* unused,
145       int   nUnused
146    );
147 
148 BZ_EXTERN void BZ_API(BZ2_bzReadClose) (
149       int*    bzerror,
150       BZFILE* b
151    );
152 
153 BZ_EXTERN void BZ_API(BZ2_bzReadGetUnused) (
154       int*    bzerror,
155       BZFILE* b,
156       void**  unused,
157       int*    nUnused
158    );
159 
160 BZ_EXTERN int BZ_API(BZ2_bzRead) (
161       int*    bzerror,
162       BZFILE* b,
163       void*   buf,
164       int     len
165    );
166 
167 BZ_EXTERN BZFILE* BZ_API(BZ2_bzWriteOpen) (
168       int*  bzerror,
169       FILE* f,
170       int   blockSize100k,
171       int   verbosity,
172       int   workFactor
173    );
174 
175 BZ_EXTERN void BZ_API(BZ2_bzWrite) (
176       int*    bzerror,
177       BZFILE* b,
178       void*   buf,
179       int     len
180    );
181 
182 BZ_EXTERN void BZ_API(BZ2_bzWriteClose) (
183       int*          bzerror,
184       BZFILE*       b,
185       int           abandon,
186       unsigned int* nbytes_in,
187       unsigned int* nbytes_out
188    );
189 
190 BZ_EXTERN void BZ_API(BZ2_bzWriteClose64) (
191       int*          bzerror,
192       BZFILE*       b,
193       int           abandon,
194       unsigned int* nbytes_in_lo32,
195       unsigned int* nbytes_in_hi32,
196       unsigned int* nbytes_out_lo32,
197       unsigned int* nbytes_out_hi32
198    );
199 #endif
200 
201 
202 /*-- Utility functions --*/
203 
204 BZ_EXTERN int BZ_API(BZ2_bzBuffToBuffCompress) (
205       char*         dest,
206       unsigned int* destLen,
207       char*         source,
208       unsigned int  sourceLen,
209       int           blockSize100k,
210       int           verbosity,
211       int           workFactor
212    );
213 
214 BZ_EXTERN int BZ_API(BZ2_bzBuffToBuffDecompress) (
215       char*         dest,
216       unsigned int* destLen,
217       char*         source,
218       unsigned int  sourceLen,
219       int           small,
220       int           verbosity
221    );
222 
223 
224 /*--
225    Code contributed by Yoshioka Tsuneo (tsuneo@rr.iij4u.or.jp)
226    to support better zlib compatibility.
227    This code is not _officially_ part of libbzip2 (yet);
228    I haven't tested it, documented it, or considered the
229    threading-safeness of it.
230    If this code breaks, please contact both Yoshioka and me.
231 --*/
232 
233 BZ_EXTERN const char * BZ_API(BZ2_bzlibVersion) (
234       void
235    );
236 
237 #ifndef BZ_NO_STDIO
238 BZ_EXTERN BZFILE * BZ_API(BZ2_bzopen) (
239       const char *path,
240       const char *mode
241    );
242 
243 BZ_EXTERN BZFILE * BZ_API(BZ2_bzdopen) (
244       int        fd,
245       const char *mode
246    );
247 
248 BZ_EXTERN int BZ_API(BZ2_bzread) (
249       BZFILE* b,
250       void* buf,
251       int len
252    );
253 
254 BZ_EXTERN int BZ_API(BZ2_bzwrite) (
255       BZFILE* b,
256       void*   buf,
257       int     len
258    );
259 
260 BZ_EXTERN int BZ_API(BZ2_bzflush) (
261       BZFILE* b
262    );
263 
264 BZ_EXTERN void BZ_API(BZ2_bzclose) (
265       BZFILE* b
266    );
267 
268 BZ_EXTERN const char * BZ_API(BZ2_bzerror) (
269       BZFILE *b,
270       int    *errnum
271    );
272 #endif
273 
274 #ifdef __cplusplus
275 }
276 #endif
277 
278 #endif
279 
280 /*-------------------------------------------------------------*/
281 /*--- end                                           bzlib.h ---*/
282 /*-------------------------------------------------------------*/
283