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