external/bsd/bzip2/dist/bzlib.h

   1 /*      $NetBSD: bzlib.h,v 1.1.1.2 2012/05/07 00:41:46 wiz Exp $        */
   2
   3
   4 /*-------------------------------------------------------------*/
   5 /*--- Public header file for the library.                   ---*/
   6 /*---                                               bzlib.h ---*/
   7 /*-------------------------------------------------------------*/
   8
   9 /* ------------------------------------------------------------------
  10    This file is part of bzip2/libbzip2, a program and library for
  11    lossless, block-sorting data compression.
  12
  13    bzip2/libbzip2 version 1.0.6 of 6 September 2010
  14    Copyright (C) 1996-2010 Julian Seward <jseward@bzip.org>
  15
  16    Please read the WARNING, DISCLAIMER and PATENTS sections in the
  17    README file.
  18
  19    This program is released under the terms of the license contained
  20    in the file LICENSE.
  21    ------------------------------------------------------------------ */
  22
  23
  24 #ifndef _BZLIB_H
  25 #define _BZLIB_H
  26
  27 #ifdef __cplusplus
  28 extern "C" {
  29 #endif
  30
  31 #define BZ_RUN               0
  32 #define BZ_FLUSH             1
  33 #define BZ_FINISH            2
  34
  35 #define BZ_OK                0
  36 #define BZ_RUN_OK            1
  37 #define BZ_FLUSH_OK          2
  38 #define BZ_FINISH_OK         3
  39 #define BZ_STREAM_END        4
  40 #define BZ_SEQUENCE_ERROR    (-1)
  41 #define BZ_PARAM_ERROR       (-2)
  42 #define BZ_MEM_ERROR         (-3)
  43 #define BZ_DATA_ERROR        (-4)
  44 #define BZ_DATA_ERROR_MAGIC  (-5)
  45 #define BZ_IO_ERROR          (-6)
  46 #define BZ_UNEXPECTED_EOF    (-7)
  47 #define BZ_OUTBUFF_FULL      (-8)
  48 #define BZ_CONFIG_ERROR      (-9)
  49
  50 typedef
  51    struct {
  52       char *next_in;
  53       unsigned int avail_in;
  54       unsigned int total_in_lo32;
  55       unsigned int total_in_hi32;
  56
  57       char *next_out;
  58       unsigned int avail_out;
  59       unsigned int total_out_lo32;
  60       unsigned int total_out_hi32;
  61
  62       void *state;
  63
  64       void *(*bzalloc)(void *,int,int);
  65       void (*bzfree)(void *,void *);
  66       void *opaque;
  67    }
  68    bz_stream;
  69
  70
  71 #ifndef BZ_IMPORT
  72 #define BZ_EXPORT
  73 #endif
  74
  75 #ifndef BZ_NO_STDIO
  76 /* Need a definitition for FILE */
  77 #include <stdio.h>
  78 #endif
  79
  80 #ifdef _WIN32
  81 #   include <windows.h>
  82 #   ifdef small
  83       /* windows.h define small to char */
  84 #      undef small
  85 #   endif
  86 #   ifdef BZ_EXPORT
  87 #   define BZ_API(func) WINAPI func
  88 #   define BZ_EXTERN extern
  89 #   else
  90    /* import windows dll dynamically */
  91 #   define BZ_API(func) (WINAPI * func)
  92 #   define BZ_EXTERN
  93 #   endif
  94 #else
  95 #   define BZ_API(func) func
  96 #   define BZ_EXTERN extern
  97 #endif
  98
  99
 100 /*-- Core (low-level) library functions --*/
 101
 102 BZ_EXTERN int BZ_API(BZ2_bzCompressInit) (
 103       bz_stream* strm,
 104       int        blockSize100k,
 105       int        verbosity,
 106       int        workFactor
 107    );
 108
 109 BZ_EXTERN int BZ_API(BZ2_bzCompress) (
 110       bz_stream* strm,
 111       int action
 112    );
 113
 114 BZ_EXTERN int BZ_API(BZ2_bzCompressEnd) (
 115       bz_stream* strm
 116    );
 117
 118 BZ_EXTERN int BZ_API(BZ2_bzDecompressInit) (
 119       bz_stream *strm,
 120       int       verbosity,
 121       int       small
 122    );
 123
 124 BZ_EXTERN int BZ_API(BZ2_bzDecompress) (
 125       bz_stream* strm
 126    );
 127
 128 BZ_EXTERN int BZ_API(BZ2_bzDecompressEnd) (
 129       bz_stream *strm
 130    );
 131
 132
 133
 134 /*-- High(er) level library functions --*/
 135
 136 #ifndef BZ_NO_STDIO
 137 #define BZ_MAX_UNUSED 5000
 138
 139 typedef void BZFILE;
 140
 141 BZ_EXTERN BZFILE* BZ_API(BZ2_bzReadOpen) (
 142       int*  bzerror,
 143       FILE* f,
 144       int   verbosity,
 145       int   small,
 146       void* unused,
 147       int   nUnused
 148    );
 149
 150 BZ_EXTERN void BZ_API(BZ2_bzReadClose) (
 151       int*    bzerror,
 152       BZFILE* b
 153    );
 154
 155 BZ_EXTERN void BZ_API(BZ2_bzReadGetUnused) (
 156       int*    bzerror,
 157       BZFILE* b,
 158       void**  unused,
 159       int*    nUnused
 160    );
 161
 162 BZ_EXTERN int BZ_API(BZ2_bzRead) (
 163       int*    bzerror,
 164       BZFILE* b,
 165       void*   buf,
 166       int     len
 167    );
 168
 169 BZ_EXTERN BZFILE* BZ_API(BZ2_bzWriteOpen) (
 170       int*  bzerror,
 171       FILE* f,
 172       int   blockSize100k,
 173       int   verbosity,
 174       int   workFactor
 175    );
 176
 177 BZ_EXTERN void BZ_API(BZ2_bzWrite) (
 178       int*    bzerror,
 179       BZFILE* b,
 180       void*   buf,
 181       int     len
 182    );
 183
 184 BZ_EXTERN void BZ_API(BZ2_bzWriteClose) (
 185       int*          bzerror,
 186       BZFILE*       b,
 187       int           abandon,
 188       unsigned int* nbytes_in,
 189       unsigned int* nbytes_out
 190    );
 191
 192 BZ_EXTERN void BZ_API(BZ2_bzWriteClose64) (
 193       int*          bzerror,
 194       BZFILE*       b,
 195       int           abandon,
 196       unsigned int* nbytes_in_lo32,
 197       unsigned int* nbytes_in_hi32,
 198       unsigned int* nbytes_out_lo32,
 199       unsigned int* nbytes_out_hi32
 200    );
 201 #endif
 202
 203
 204 /*-- Utility functions --*/
 205
 206 BZ_EXTERN int BZ_API(BZ2_bzBuffToBuffCompress) (
 207       char*         dest,
 208       unsigned int* destLen,
 209       char*         source,
 210       unsigned int  sourceLen,
 211       int           blockSize100k,
 212       int           verbosity,
 213       int           workFactor
 214    );
 215
 216 BZ_EXTERN int BZ_API(BZ2_bzBuffToBuffDecompress) (
 217       char*         dest,
 218       unsigned int* destLen,
 219       char*         source,
 220       unsigned int  sourceLen,
 221       int           small,
 222       int           verbosity
 223    );
 224
 225
 226 /*--
 227    Code contributed by Yoshioka Tsuneo (tsuneo@rr.iij4u.or.jp)
 228    to support better zlib compatibility.
 229    This code is not _officially_ part of libbzip2 (yet);
 230    I haven't tested it, documented it, or considered the
 231    threading-safeness of it.
 232    If this code breaks, please contact both Yoshioka and me.
 233 --*/
 234
 235 BZ_EXTERN const char * BZ_API(BZ2_bzlibVersion) (
 236       void
 237    );
 238
 239 #ifndef BZ_NO_STDIO
 240 BZ_EXTERN BZFILE * BZ_API(BZ2_bzopen) (
 241       const char *path,
 242       const char *mode
 243    );
 244
 245 BZ_EXTERN BZFILE * BZ_API(BZ2_bzdopen) (
 246       int        fd,
 247       const char *mode
 248    );
 249
 250 BZ_EXTERN int BZ_API(BZ2_bzread) (
 251       BZFILE* b,
 252       void* buf,
 253       int len
 254    );
 255
 256 BZ_EXTERN int BZ_API(BZ2_bzwrite) (
 257       BZFILE* b,
 258       void*   buf,
 259       int     len
 260    );
 261
 262 BZ_EXTERN int BZ_API(BZ2_bzflush) (
 263       BZFILE* b
 264    );
 265
 266 BZ_EXTERN void BZ_API(BZ2_bzclose) (
 267       BZFILE* b
 268    );
 269
 270 BZ_EXTERN const char * BZ_API(BZ2_bzerror) (
 271       BZFILE *b,
 272       int    *errnum
 273    );
 274 #endif
 275
 276 #ifdef __cplusplus
 277 }
 278 #endif
 279
 280 #endif
 281
 282 /*-------------------------------------------------------------*/
 283 /*--- end                                           bzlib.h ---*/
 284 /*-------------------------------------------------------------*/