1/*
2 * This file is a modified version of bzlib.h from the bzip2-1.0.2
3 * distribution which can be found at http://sources.redhat.com/bzip2/
4 */
5
6/*-------------------------------------------------------------*/
7/*--- Public header file for the library.                   ---*/
8/*---                                               bzlib.h ---*/
9/*-------------------------------------------------------------*/
10
11/*--
12  This file is a part of bzip2 and/or libbzip2, a program and
13  library for lossless, block-sorting data compression.
14
15  Copyright (C) 1996-2002 Julian R Seward.  All rights reserved.
16
17  Redistribution and use in source and binary forms, with or without
18  modification, are permitted provided that the following conditions
19  are met:
20
21  1. Redistributions of source code must retain the above copyright
22     notice, this list of conditions and the following disclaimer.
23
24  2. The origin of this software must not be misrepresented; you must
25     not claim that you wrote the original software.  If you use this
26     software in a product, an acknowledgment in the product
27     documentation would be appreciated but is not required.
28
29  3. Altered source versions must be plainly marked as such, and must
30     not be misrepresented as being the original software.
31
32  4. The name of the author may not be used to endorse or promote
33     products derived from this software without specific prior written
34     permission.
35
36  THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
37  OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
38  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
39  ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
40  DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
41  DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
42  GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
43  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
44  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
45  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
46  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
47
48  Julian Seward, Cambridge, UK.
49  jseward@acm.org
50  bzip2/libbzip2 version 1.0 of 21 March 2000
51
52  This program is based on (at least) the work of:
53     Mike Burrows
54     David Wheeler
55     Peter Fenwick
56     Alistair Moffat
57     Radford Neal
58     Ian H. Witten
59     Robert Sedgewick
60     Jon L. Bentley
61
62  For more information on these sources, see the manual.
63--*/
64
65
66#ifndef _BZLIB_H
67#define _BZLIB_H
68
69/* Configure for U-Boot environment */
70#define BZ_NO_STDIO
71
72#ifndef CONFIG_SANDBOX
73#define BZ_NO_COMPRESS
74#endif
75/* End of configuration for U-Boot environment */
76
77#ifdef __cplusplus
78extern "C" {
79#endif
80
81#define BZ_RUN               0
82#define BZ_FLUSH             1
83#define BZ_FINISH            2
84
85#define BZ_OK                0
86#define BZ_RUN_OK            1
87#define BZ_FLUSH_OK          2
88#define BZ_FINISH_OK         3
89#define BZ_STREAM_END        4
90#define BZ_SEQUENCE_ERROR    (-1)
91#define BZ_PARAM_ERROR       (-2)
92#define BZ_MEM_ERROR         (-3)
93#define BZ_DATA_ERROR        (-4)
94#define BZ_DATA_ERROR_MAGIC  (-5)
95#define BZ_IO_ERROR          (-6)
96#define BZ_UNEXPECTED_EOF    (-7)
97#define BZ_OUTBUFF_FULL      (-8)
98#define BZ_CONFIG_ERROR      (-9)
99
100typedef
101   struct {
102      char *next_in;
103      unsigned int avail_in;
104      unsigned int total_in_lo32;
105      unsigned int total_in_hi32;
106
107      char *next_out;
108      unsigned int avail_out;
109      unsigned int total_out_lo32;
110      unsigned int total_out_hi32;
111
112      void *state;
113
114      void *(*bzalloc)(void *,int,int);
115      void (*bzfree)(void *,void *);
116      void *opaque;
117   }
118   bz_stream;
119
120
121#ifndef BZ_IMPORT
122#define BZ_EXPORT
123#endif
124
125#ifdef _WIN32
126#   include <windows.h>
127#   ifdef small
128      /* windows.h define small to char */
129#      undef small
130#   endif
131#   ifdef BZ_EXPORT
132#   define BZ_API(func) WINAPI func
133#   define BZ_EXTERN extern
134#   else
135   /* import windows dll dynamically */
136#   define BZ_API(func) (WINAPI * func)
137#   define BZ_EXTERN
138#   endif
139#else
140#   define BZ_API(func) func
141#   define BZ_EXTERN extern
142#endif
143
144
145/*-- Core (low-level) library functions --*/
146
147BZ_EXTERN int BZ_API(BZ2_bzCompressInit) (
148      bz_stream* strm,
149      int        blockSize100k,
150      int        verbosity,
151      int        workFactor
152   );
153
154BZ_EXTERN int BZ_API(BZ2_bzCompress) (
155      bz_stream* strm,
156      int action
157   );
158
159BZ_EXTERN int BZ_API(BZ2_bzCompressEnd) (
160      bz_stream* strm
161   );
162
163BZ_EXTERN int BZ_API(BZ2_bzDecompressInit) (
164      bz_stream *strm,
165      int       verbosity,
166      int       small
167   );
168
169BZ_EXTERN int BZ_API(BZ2_bzDecompress) (
170      bz_stream* strm
171   );
172
173BZ_EXTERN int BZ_API(BZ2_bzDecompressEnd) (
174      bz_stream *strm
175   );
176
177
178/*-- High(er) level library functions --*/
179
180#ifndef BZ_NO_STDIO
181#define BZ_MAX_UNUSED 5000
182
183/* Need a definitition for FILE */
184#include <stdio.h>
185
186typedef void BZFILE;
187
188BZ_EXTERN BZFILE* BZ_API(BZ2_bzReadOpen) (
189      int*  bzerror,
190      FILE* f,
191      int   verbosity,
192      int   small,
193      void* unused,
194      int   nUnused
195   );
196
197BZ_EXTERN void BZ_API(BZ2_bzReadClose) (
198      int*    bzerror,
199      BZFILE* b
200   );
201
202BZ_EXTERN void BZ_API(BZ2_bzReadGetUnused) (
203      int*    bzerror,
204      BZFILE* b,
205      void**  unused,
206      int*    nUnused
207   );
208
209BZ_EXTERN int BZ_API(BZ2_bzRead) (
210      int*    bzerror,
211      BZFILE* b,
212      void*   buf,
213      int     len
214   );
215
216BZ_EXTERN BZFILE* BZ_API(BZ2_bzWriteOpen) (
217      int*  bzerror,
218      FILE* f,
219      int   blockSize100k,
220      int   verbosity,
221      int   workFactor
222   );
223
224BZ_EXTERN void BZ_API(BZ2_bzWrite) (
225      int*    bzerror,
226      BZFILE* b,
227      void*   buf,
228      int     len
229   );
230
231BZ_EXTERN void BZ_API(BZ2_bzWriteClose) (
232      int*          bzerror,
233      BZFILE*       b,
234      int           abandon,
235      unsigned int* nbytes_in,
236      unsigned int* nbytes_out
237   );
238
239BZ_EXTERN void BZ_API(BZ2_bzWriteClose64) (
240      int*          bzerror,
241      BZFILE*       b,
242      int           abandon,
243      unsigned int* nbytes_in_lo32,
244      unsigned int* nbytes_in_hi32,
245      unsigned int* nbytes_out_lo32,
246      unsigned int* nbytes_out_hi32
247   );
248#endif
249
250
251/*-- Utility functions --*/
252
253BZ_EXTERN int BZ_API(BZ2_bzBuffToBuffCompress) (
254      char*         dest,
255      unsigned int* destLen,
256      char*         source,
257      unsigned int  sourceLen,
258      int           blockSize100k,
259      int           verbosity,
260      int           workFactor
261   );
262
263BZ_EXTERN int BZ_API(BZ2_bzBuffToBuffDecompress) (
264      char*         dest,
265      unsigned int* destLen,
266      char*         source,
267      unsigned int  sourceLen,
268      int           small,
269      int           verbosity
270   );
271
272
273/*--
274   Code contributed by Yoshioka Tsuneo
275   (QWF00133@niftyserve.or.jp/tsuneo-y@is.aist-nara.ac.jp),
276   to support better zlib compatibility.
277   This code is not _officially_ part of libbzip2 (yet);
278   I haven't tested it, documented it, or considered the
279   threading-safeness of it.
280   If this code breaks, please contact both Yoshioka and me.
281--*/
282
283BZ_EXTERN const char * BZ_API(BZ2_bzlibVersion) (
284      void
285   );
286
287#ifndef BZ_NO_STDIO
288BZ_EXTERN BZFILE * BZ_API(BZ2_bzopen) (
289      const char *path,
290      const char *mode
291   );
292
293BZ_EXTERN BZFILE * BZ_API(BZ2_bzdopen) (
294      int        fd,
295      const char *mode
296   );
297
298BZ_EXTERN int BZ_API(BZ2_bzread) (
299      BZFILE* b,
300      void* buf,
301      int len
302   );
303
304BZ_EXTERN int BZ_API(BZ2_bzwrite) (
305      BZFILE* b,
306      void*   buf,
307      int     len
308   );
309
310BZ_EXTERN int BZ_API(BZ2_bzflush) (
311      BZFILE* b
312   );
313
314BZ_EXTERN void BZ_API(BZ2_bzclose) (
315      BZFILE* b
316   );
317
318BZ_EXTERN const char * BZ_API(BZ2_bzerror) (
319      BZFILE *b,
320      int    *errnum
321   );
322#endif
323
324#ifdef __cplusplus
325}
326#endif
327
328#endif
329
330/*-------------------------------------------------------------*/
331/*--- end                                           bzlib.h ---*/
332/*-------------------------------------------------------------*/
333