libs/unzip/ioapi.h

   1 /* ioapi.h -- IO base function header for compress/uncompress .zip
   2    files using zlib + zip or unzip API
   3
   4    Version 1.01e, February 12th, 2005
   5
   6    Copyright (C) 1998-2005 Gilles Vollant
   7 */
   8
   9 #ifndef _ZLIBIOAPI_H
  10 #define _ZLIBIOAPI_H
  11
  12
  13 #define ZLIB_FILEFUNC_SEEK_CUR (1)
  14 #define ZLIB_FILEFUNC_SEEK_END (2)
  15 #define ZLIB_FILEFUNC_SEEK_SET (0)
  16
  17 #define ZLIB_FILEFUNC_MODE_READ      (1)
  18 #define ZLIB_FILEFUNC_MODE_WRITE     (2)
  19 #define ZLIB_FILEFUNC_MODE_READWRITEFILTER (3)
  20
  21 #define ZLIB_FILEFUNC_MODE_EXISTING (4)
  22 #define ZLIB_FILEFUNC_MODE_CREATE   (8)
  23
  24
  25 #ifndef ZCALLBACK
  26
  27 #if (defined(WIN32) || defined (WINDOWS) || defined (_WINDOWS)) && defined(CALLBACK) && defined (USEWINDOWS_CALLBACK)
  28 #define ZCALLBACK CALLBACK
  29 #else
  30 #define ZCALLBACK
  31 #endif
  32 #endif
  33
  34 #ifdef __cplusplus
  35 extern "C" {
  36 #endif
  37
  38 typedef voidpf (ZCALLBACK *open_file_func) OF((voidpf opaque, const char* filename, int mode));
  39 typedef uLong  (ZCALLBACK *read_file_func) OF((voidpf opaque, voidpf stream, void* buf, uLong size));
  40 typedef uLong  (ZCALLBACK *write_file_func) OF((voidpf opaque, voidpf stream, const void* buf, uLong size));
  41 typedef long   (ZCALLBACK *tell_file_func) OF((voidpf opaque, voidpf stream));
  42 typedef long   (ZCALLBACK *seek_file_func) OF((voidpf opaque, voidpf stream, uLong offset, int origin));
  43 typedef int    (ZCALLBACK *close_file_func) OF((voidpf opaque, voidpf stream));
  44 typedef int    (ZCALLBACK *testerror_file_func) OF((voidpf opaque, voidpf stream));
  45
  46 typedef struct zlib_filefunc_def_s
  47 {
  48     open_file_func      zopen_file;
  49     read_file_func      zread_file;
  50     write_file_func     zwrite_file;
  51     tell_file_func      ztell_file;
  52     seek_file_func      zseek_file;
  53     close_file_func     zclose_file;
  54     testerror_file_func zerror_file;
  55     voidpf              opaque;
  56 } zlib_filefunc_def;
  57
  58
  59
  60 void fill_fopen_filefunc OF((zlib_filefunc_def* pzlib_filefunc_def));
  61
  62 #define ZREAD(filefunc,filestream,buf,size) ((*((filefunc).zread_file))((filefunc).opaque,filestream,buf,size))
  63 #define ZWRITE(filefunc,filestream,buf,size) ((*((filefunc).zwrite_file))((filefunc).opaque,filestream,buf,size))
  64 #define ZTELL(filefunc,filestream) ((*((filefunc).ztell_file))((filefunc).opaque,filestream))
  65 #define ZSEEK(filefunc,filestream,pos,mode) ((*((filefunc).zseek_file))((filefunc).opaque,filestream,pos,mode))
  66 #define ZCLOSE(filefunc,filestream) ((*((filefunc).zclose_file))((filefunc).opaque,filestream))
  67 #define ZERROR(filefunc,filestream) ((*((filefunc).zerror_file))((filefunc).opaque,filestream))
  68
  69
  70 #ifdef __cplusplus
  71 }
  72 #endif
  73
  74 #endif
  75