WDL/zlib/ioapi.h

   1 /* ioapi.h -- IO base function header for compress/uncompress .zip
   2    part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
   3
   4          Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
   5
   6          Modifications for Zip64 support
   7          Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
   8
   9          For more info read MiniZip_info.txt
  10
  11          Changes
  12
  13     Oct-2009 - Defined ZPOS64_T to fpos_t on windows and u_int64_t on linux. (might need to find a better why for this)
  14     Oct-2009 - Change to fseeko64, ftello64 and fopen64 so large files would work on linux.
  15                More if/def section may be needed to support other platforms
  16     Oct-2009 - Defined fxxxx64 calls to normal fopen/ftell/fseek so they would compile on windows.
  17                           (but you should use iowin32.c for windows instead)
  18
  19 */
  20
  21 #ifndef _ZLIBIOAPI64_H
  22 #define _ZLIBIOAPI64_H
  23
  24 #if (!defined(_WIN32)) && (!defined(WIN32)) && (!defined(__APPLE__))
  25
  26   // Linux needs this to support file operation on files larger then 4+GB
  27   // But might need better if/def to select just the platforms that needs them.
  28
  29         #ifndef __USE_FILE_OFFSET64
  30                 #define __USE_FILE_OFFSET64
  31         #endif
  32         #ifndef __USE_LARGEFILE64
  33                 #define __USE_LARGEFILE64
  34         #endif
  35         #ifndef _LARGEFILE64_SOURCE
  36                 #define _LARGEFILE64_SOURCE
  37         #endif
  38         #ifndef _FILE_OFFSET_BIT
  39                 #define _FILE_OFFSET_BIT 64
  40         #endif
  41
  42 #endif
  43
  44 #include <stdio.h>
  45 #include <stdlib.h>
  46 #include "zlib.h"
  47
  48 #if defined(USE_FILE32API)
  49 #define fopen64 fopen
  50 #define ftello64 ftell
  51 #define fseeko64 fseek
  52 #else
  53 #ifdef __FreeBSD__
  54 #define fopen64 fopen
  55 #define ftello64 ftello
  56 #define fseeko64 fseeko
  57 #endif
  58 #ifdef _MSC_VER
  59  #define fopen64 fopen
  60  #if (_MSC_VER >= 1400) && (!(defined(NO_MSCVER_FILE64_FUNC)))
  61   #define ftello64 _ftelli64
  62   #define fseeko64 _fseeki64
  63  #else // old MSC
  64   #define ftello64 ftell
  65   #define fseeko64 fseek
  66  #endif
  67 #endif
  68 #endif
  69
  70 /*
  71 #ifndef ZPOS64_T
  72   #ifdef _WIN32
  73                 #define ZPOS64_T fpos_t
  74   #else
  75     #include <stdint.h>
  76     #define ZPOS64_T uint64_t
  77   #endif
  78 #endif
  79 */
  80
  81 #ifdef HAVE_MINIZIP64_CONF_H
  82 #include "mz64conf.h"
  83 #endif
  84
  85 /* a type choosen by DEFINE */
  86 #ifdef HAVE_64BIT_INT_CUSTOM
  87 typedef  64BIT_INT_CUSTOM_TYPE ZPOS64_T;
  88 #else
  89 #ifdef HAS_STDINT_H
  90 #include "stdint.h"
  91 typedef uint64_t ZPOS64_T;
  92 #else
  93
  94 /* Maximum unsigned 32-bit value used as placeholder for zip64 */
  95 #define MAXU32 0xffffffff
  96
  97 #if defined(_MSC_VER) || defined(__BORLANDC__)
  98 typedef unsigned __int64 ZPOS64_T;
  99 #else
 100 typedef unsigned long long int ZPOS64_T;
 101 #endif
 102 #endif
 103 #endif
 104
 105
 106
 107 #ifdef __cplusplus
 108 extern "C" {
 109 #endif
 110
 111
 112 #define ZLIB_FILEFUNC_SEEK_CUR (1)
 113 #define ZLIB_FILEFUNC_SEEK_END (2)
 114 #define ZLIB_FILEFUNC_SEEK_SET (0)
 115
 116 #define ZLIB_FILEFUNC_MODE_READ      (1)
 117 #define ZLIB_FILEFUNC_MODE_WRITE     (2)
 118 #define ZLIB_FILEFUNC_MODE_READWRITEFILTER (3)
 119
 120 #define ZLIB_FILEFUNC_MODE_EXISTING (4)
 121 #define ZLIB_FILEFUNC_MODE_CREATE   (8)
 122
 123
 124 #ifndef ZCALLBACK
 125  #if (defined(WIN32) || defined(_WIN32) || defined (WINDOWS) || defined (_WINDOWS)) && defined(CALLBACK) && defined (USEWINDOWS_CALLBACK)
 126    #define ZCALLBACK CALLBACK
 127  #else
 128    #define ZCALLBACK
 129  #endif
 130 #endif
 131
 132
 133
 134
 135 typedef voidpf   (ZCALLBACK *open_file_func)      OF((voidpf opaque, const char* filename, int mode));
 136 typedef uLong    (ZCALLBACK *read_file_func)      OF((voidpf opaque, voidpf stream, void* buf, uLong size));
 137 typedef uLong    (ZCALLBACK *write_file_func)     OF((voidpf opaque, voidpf stream, const void* buf, uLong size));
 138 typedef int      (ZCALLBACK *close_file_func)     OF((voidpf opaque, voidpf stream));
 139 typedef int      (ZCALLBACK *testerror_file_func) OF((voidpf opaque, voidpf stream));
 140
 141 typedef long     (ZCALLBACK *tell_file_func)      OF((voidpf opaque, voidpf stream));
 142 typedef long     (ZCALLBACK *seek_file_func)      OF((voidpf opaque, voidpf stream, uLong offset, int origin));
 143
 144
 145 /* here is the "old" 32 bits structure structure */
 146 typedef struct zlib_filefunc_def_s
 147 {
 148     open_file_func      zopen_file;
 149     read_file_func      zread_file;
 150     write_file_func     zwrite_file;
 151     tell_file_func      ztell_file;
 152     seek_file_func      zseek_file;
 153     close_file_func     zclose_file;
 154     testerror_file_func zerror_file;
 155     voidpf              opaque;
 156 } zlib_filefunc_def;
 157
 158 typedef ZPOS64_T (ZCALLBACK *tell64_file_func)    OF((voidpf opaque, voidpf stream));
 159 typedef long     (ZCALLBACK *seek64_file_func)    OF((voidpf opaque, voidpf stream, ZPOS64_T offset, int origin));
 160 typedef voidpf   (ZCALLBACK *open64_file_func)    OF((voidpf opaque, const void* filename, int mode));
 161
 162 typedef struct zlib_filefunc64_def_s
 163 {
 164     open64_file_func    zopen64_file;
 165     read_file_func      zread_file;
 166     write_file_func     zwrite_file;
 167     tell64_file_func    ztell64_file;
 168     seek64_file_func    zseek64_file;
 169     close_file_func     zclose_file;
 170     testerror_file_func zerror_file;
 171     voidpf              opaque;
 172 } zlib_filefunc64_def;
 173
 174 void fill_fopen64_filefunc OF((zlib_filefunc64_def* pzlib_filefunc_def));
 175 void fill_fopen_filefunc OF((zlib_filefunc_def* pzlib_filefunc_def));
 176
 177 /* now internal definition, only for zip.c and unzip.h */
 178 typedef struct zlib_filefunc64_32_def_s
 179 {
 180     zlib_filefunc64_def zfile_func64;
 181     open_file_func      zopen32_file;
 182     tell_file_func      ztell32_file;
 183     seek_file_func      zseek32_file;
 184 } zlib_filefunc64_32_def;
 185
 186
 187 #define ZREAD64(filefunc,filestream,buf,size)     ((*((filefunc).zfile_func64.zread_file))   ((filefunc).zfile_func64.opaque,filestream,buf,size))
 188 #define ZWRITE64(filefunc,filestream,buf,size)    ((*((filefunc).zfile_func64.zwrite_file))  ((filefunc).zfile_func64.opaque,filestream,buf,size))
 189 //#define ZTELL64(filefunc,filestream)            ((*((filefunc).ztell64_file)) ((filefunc).opaque,filestream))
 190 //#define ZSEEK64(filefunc,filestream,pos,mode)   ((*((filefunc).zseek64_file)) ((filefunc).opaque,filestream,pos,mode))
 191 #define ZCLOSE64(filefunc,filestream)             ((*((filefunc).zfile_func64.zclose_file))  ((filefunc).zfile_func64.opaque,filestream))
 192 #define ZERROR64(filefunc,filestream)             ((*((filefunc).zfile_func64.zerror_file))  ((filefunc).zfile_func64.opaque,filestream))
 193
 194 voidpf call_zopen64 OF((const zlib_filefunc64_32_def* pfilefunc,const void*filename,int mode));
 195 long    call_zseek64 OF((const zlib_filefunc64_32_def* pfilefunc,voidpf filestream, ZPOS64_T offset, int origin));
 196 ZPOS64_T call_ztell64 OF((const zlib_filefunc64_32_def* pfilefunc,voidpf filestream));
 197
 198 void    fill_zlib_filefunc64_32_def_from_filefunc32(zlib_filefunc64_32_def* p_filefunc64_32,const zlib_filefunc_def* p_filefunc32);
 199
 200 #define ZOPEN64(filefunc,filename,mode)         (call_zopen64((&(filefunc)),(filename),(mode)))
 201 #define ZTELL64(filefunc,filestream)            (call_ztell64((&(filefunc)),(filestream)))
 202 #define ZSEEK64(filefunc,filestream,pos,mode)   (call_zseek64((&(filefunc)),(filestream),(pos),(mode)))
 203
 204 #ifdef __cplusplus
 205 }
 206 #endif
 207
 208 #endif