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 1.0.5 of 10 December 2007 12 Copyright (C) 1996-2007 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 #ifndef _BZLIB_H 22 #define _BZLIB_H 23 24 #ifdef _KERNEL 25 #define BZ_NO_STDIO 26 #endif 27 28 #ifdef __cplusplus 29 extern "C" { 30 #endif 31 32 #define BZ_RUN 0 33 #define BZ_FLUSH 1 34 #define BZ_FINISH 2 35 36 #define BZ_OK 0 37 #define BZ_RUN_OK 1 38 #define BZ_FLUSH_OK 2 39 #define BZ_FINISH_OK 3 40 #define BZ_STREAM_END 4 41 #define BZ_SEQUENCE_ERROR (-1) 42 #define BZ_PARAM_ERROR (-2) 43 #define BZ_MEM_ERROR (-3) 44 #define BZ_DATA_ERROR (-4) 45 #define BZ_DATA_ERROR_MAGIC (-5) 46 #define BZ_IO_ERROR (-6) 47 #define BZ_UNEXPECTED_EOF (-7) 48 #define BZ_OUTBUFF_FULL (-8) 49 #define BZ_CONFIG_ERROR (-9) 50 51 typedef 52 struct { 53 char *next_in; 54 unsigned int avail_in; 55 unsigned int total_in_lo32; 56 unsigned int total_in_hi32; 57 58 char *next_out; 59 unsigned int avail_out; 60 unsigned int total_out_lo32; 61 unsigned int total_out_hi32; 62 63 void *state; 64 65 void *(*bzalloc)(void *,int,int); 66 void (*bzfree)(void *,void *); 67 void *opaque; 68 } 69 bz_stream; 70 71 72 #ifndef BZ_IMPORT 73 #define BZ_EXPORT 74 #endif 75 76 #ifndef BZ_NO_STDIO 77 /* Need a definitition for FILE */ 78 #include <stdio.h> 79 #endif 80 81 #ifdef _WIN32 82 # include <windows.h> 83 # ifdef small 84 /* windows.h define small to char */ 85 # undef small 86 # endif 87 # ifdef BZ_EXPORT 88 # define BZ_API(func) WINAPI func 89 # define BZ_EXTERN extern 90 # else 91 /* import windows dll dynamically */ 92 # define BZ_API(func) (WINAPI * func) 93 # define BZ_EXTERN 94 # endif 95 #else 96 # define BZ_API(func) func 97 # define BZ_EXTERN extern 98 #endif 99 100 101 /*-- Core (low-level) library functions --*/ 102 103 #define BZ2_BZALLOC_ALIGN (64) 104 105 BZ_EXTERN int BZ_API(BZ2_bzCompressInit) ( 106 bz_stream* strm, 107 int blockSize100k, 108 int verbosity, 109 int workFactor 110 ); 111 112 BZ_EXTERN int BZ_API(BZ2_bzCompressInitSize) ( 113 int blockSize100k 114 ); 115 116 BZ_EXTERN int BZ_API(BZ2_bzCompressReset) ( 117 bz_stream* strm 118 ); 119 120 BZ_EXTERN int BZ_API(BZ2_bzCompress) ( 121 bz_stream* strm, 122 int action 123 ); 124 125 BZ_EXTERN int BZ_API(BZ2_bzCompressEnd) ( 126 bz_stream* strm 127 ); 128 129 BZ_EXTERN int BZ_API(BZ2_bzDecompressInit) ( 130 bz_stream *strm, 131 int verbosity, 132 int small 133 ); 134 135 BZ_EXTERN int BZ_API(BZ2_bzDecompressReset) ( 136 bz_stream* strm 137 ); 138 139 BZ_EXTERN int BZ_API(BZ2_bzDecompress) ( 140 bz_stream* strm 141 ); 142 143 BZ_EXTERN int BZ_API(BZ2_bzDecompressEnd) ( 144 bz_stream *strm 145 ); 146 147 BZ_EXTERN const char * BZ_API(BZ2_bzErrorString) ( 148 int error_code 149 ); 150 151 152 153 /*-- High(er) level library functions --*/ 154 155 #ifndef BZ_NO_STDIO 156 #define BZ_MAX_UNUSED 5000 157 158 typedef void BZFILE; 159 160 BZ_EXTERN BZFILE* BZ_API(BZ2_bzReadOpen) ( 161 int* bzerror, 162 FILE* f, 163 int verbosity, 164 int small, 165 void* unused, 166 int nUnused 167 ); 168 169 BZ_EXTERN void BZ_API(BZ2_bzReadClose) ( 170 int* bzerror, 171 BZFILE* b 172 ); 173 174 BZ_EXTERN void BZ_API(BZ2_bzReadGetUnused) ( 175 int* bzerror, 176 BZFILE* b, 177 void** unused, 178 int* nUnused 179 ); 180 181 BZ_EXTERN int BZ_API(BZ2_bzRead) ( 182 int* bzerror, 183 BZFILE* b, 184 void* buf, 185 int len 186 ); 187 188 BZ_EXTERN BZFILE* BZ_API(BZ2_bzWriteOpen) ( 189 int* bzerror, 190 FILE* f, 191 int blockSize100k, 192 int verbosity, 193 int workFactor 194 ); 195 196 BZ_EXTERN void BZ_API(BZ2_bzWrite) ( 197 int* bzerror, 198 BZFILE* b, 199 void* buf, 200 int len 201 ); 202 203 BZ_EXTERN void BZ_API(BZ2_bzWriteClose) ( 204 int* bzerror, 205 BZFILE* b, 206 int abandon, 207 unsigned int* nbytes_in, 208 unsigned int* nbytes_out 209 ); 210 211 BZ_EXTERN void BZ_API(BZ2_bzWriteClose64) ( 212 int* bzerror, 213 BZFILE* b, 214 int abandon, 215 unsigned int* nbytes_in_lo32, 216 unsigned int* nbytes_in_hi32, 217 unsigned int* nbytes_out_lo32, 218 unsigned int* nbytes_out_hi32 219 ); 220 #endif 221 222 223 /*-- Utility functions --*/ 224 225 BZ_EXTERN int BZ_API(BZ2_bzBuffToBuffCompress) ( 226 char* dest, 227 unsigned int* destLen, 228 char* source, 229 unsigned int sourceLen, 230 int blockSize100k, 231 int verbosity, 232 int workFactor 233 ); 234 235 BZ_EXTERN int BZ_API(BZ2_bzBuffToBuffDecompress) ( 236 char* dest, 237 unsigned int* destLen, 238 char* source, 239 unsigned int sourceLen, 240 int small, 241 int verbosity 242 ); 243 244 245 /*-- 246 Code contributed by Yoshioka Tsuneo (tsuneo@rr.iij4u.or.jp) 247 to support better zlib compatibility. 248 This code is not _officially_ part of libbzip2 (yet); 249 I haven't tested it, documented it, or considered the 250 threading-safeness of it. 251 If this code breaks, please contact both Yoshioka and me. 252 --*/ 253 254 BZ_EXTERN const char * BZ_API(BZ2_bzlibVersion) ( 255 void 256 ); 257 258 #ifndef BZ_NO_STDIO 259 BZ_EXTERN BZFILE * BZ_API(BZ2_bzopen) ( 260 const char *path, 261 const char *mode 262 ); 263 264 BZ_EXTERN BZFILE * BZ_API(BZ2_bzdopen) ( 265 int fd, 266 const char *mode 267 ); 268 269 BZ_EXTERN int BZ_API(BZ2_bzread) ( 270 BZFILE* b, 271 void* buf, 272 int len 273 ); 274 275 BZ_EXTERN int BZ_API(BZ2_bzwrite) ( 276 BZFILE* b, 277 void* buf, 278 int len 279 ); 280 281 BZ_EXTERN int BZ_API(BZ2_bzflush) ( 282 BZFILE* b 283 ); 284 285 BZ_EXTERN void BZ_API(BZ2_bzclose) ( 286 BZFILE* b 287 ); 288 289 BZ_EXTERN const char * BZ_API(BZ2_bzerror) ( 290 BZFILE *b, 291 int *errnum 292 ); 293 #endif 294 295 #ifdef __cplusplus 296 } 297 #endif 298 299 /*-------------------------------------------------------------*/ 300 /*--- end bzlib.h ---*/ 301 /*-------------------------------------------------------------*/ 302 #endif /* _BZLIB_H */ 303