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  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.  
  76.