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      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 #if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) || defined(__HAIKU__) || defined(MINIZIP_FOPEN_NO_64)
     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 chosen 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 
     95 
     96 #if defined(_MSC_VER) || defined(__BORLANDC__)
     97 typedef unsigned __int64 ZPOS64_T;
     98 #else
     99 typedef unsigned long long int ZPOS64_T;
    100 #endif
    101 #endif
    102 #endif
    103 
    104 /* Maximum unsigned 32-bit value used as placeholder for zip64 */
    105 #ifndef MAXU32
    106 #define MAXU32 (0xffffffff)
    107 #endif
    108 
    109 #ifdef __cplusplus
    110 extern "C" {
    111 #endif
    112 
    113 
    114 #define ZLIB_FILEFUNC_SEEK_CUR (1)
    115 #define ZLIB_FILEFUNC_SEEK_END (2)
    116 #define ZLIB_FILEFUNC_SEEK_SET (0)
    117 
    118 #define ZLIB_FILEFUNC_MODE_READ      (1)
    119 #define ZLIB_FILEFUNC_MODE_WRITE     (2)
    120 #define ZLIB_FILEFUNC_MODE_READWRITEFILTER (3)
    121 
    122 #define ZLIB_FILEFUNC_MODE_EXISTING (4)
    123 #define ZLIB_FILEFUNC_MODE_CREATE   (8)
    124 
    125 
    126 #ifndef ZCALLBACK
    127  #if (defined(WIN32) || defined(_WIN32) || defined (WINDOWS) || defined (_WINDOWS)) && defined(CALLBACK) && defined (USEWINDOWS_CALLBACK)
    128    #define ZCALLBACK CALLBACK
    129  #else
    130    #define ZCALLBACK
    131  #endif
    132 #endif
    133 
    134 
    135 
    136 
    137 typedef voidpf   (ZCALLBACK *open_file_func)      (voidpf opaque, const char* filename, int mode);
    138 typedef uLong    (ZCALLBACK *read_file_func)      (voidpf opaque, voidpf stream, void* buf, uLong size);
    139 typedef uLong    (ZCALLBACK *write_file_func)     (voidpf opaque, voidpf stream, const void* buf, uLong size);
    140 typedef int      (ZCALLBACK *close_file_func)     (voidpf opaque, voidpf stream);
    141 typedef int      (ZCALLBACK *testerror_file_func) (voidpf opaque, voidpf stream);
    142 
    143 typedef long     (ZCALLBACK *tell_file_func)      (voidpf opaque, voidpf stream);
    144 typedef long     (ZCALLBACK *seek_file_func)      (voidpf opaque, voidpf stream, uLong offset, int origin);
    145 
    146 
    147 /* here is the "old" 32 bits structure */
    148 typedef struct zlib_filefunc_def_s
    149 {
    150     open_file_func      zopen_file;
    151     read_file_func      zread_file;
    152     write_file_func     zwrite_file;
    153     tell_file_func      ztell_file;
    154     seek_file_func      zseek_file;
    155     close_file_func     zclose_file;
    156     testerror_file_func zerror_file;
    157     voidpf              opaque;
    158 } zlib_filefunc_def;
    159 
    160 typedef ZPOS64_T (ZCALLBACK *tell64_file_func)    (voidpf opaque, voidpf stream);
    161 typedef long     (ZCALLBACK *seek64_file_func)    (voidpf opaque, voidpf stream, ZPOS64_T offset, int origin);
    162 typedef voidpf   (ZCALLBACK *open64_file_func)    (voidpf opaque, const void* filename, int mode);
    163 
    164 typedef struct zlib_filefunc64_def_s
    165 {
    166     open64_file_func    zopen64_file;
    167     read_file_func      zread_file;
    168     write_file_func     zwrite_file;
    169     tell64_file_func    ztell64_file;
    170     seek64_file_func    zseek64_file;
    171     close_file_func     zclose_file;
    172     testerror_file_func zerror_file;
    173     voidpf              opaque;
    174 } zlib_filefunc64_def;
    175 
    176 void fill_fopen64_filefunc(zlib_filefunc64_def* pzlib_filefunc_def);
    177 void fill_fopen_filefunc(zlib_filefunc_def* pzlib_filefunc_def);
    178 
    179 /* now internal definition, only for zip.c and unzip.h */
    180 typedef struct zlib_filefunc64_32_def_s
    181 {
    182     zlib_filefunc64_def zfile_func64;
    183     open_file_func      zopen32_file;
    184     tell_file_func      ztell32_file;
    185     seek_file_func      zseek32_file;
    186 } zlib_filefunc64_32_def;
    187 
    188 
    189 #define ZREAD64(filefunc,filestream,buf,size)     ((*((filefunc).zfile_func64.zread_file))   ((filefunc).zfile_func64.opaque,filestream,buf,size))
    190 #define ZWRITE64(filefunc,filestream,buf,size)    ((*((filefunc).zfile_func64.zwrite_file))  ((filefunc).zfile_func64.opaque,filestream,buf,size))
    191 //#define ZTELL64(filefunc,filestream)            ((*((filefunc).ztell64_file)) ((filefunc).opaque,filestream))
    192 //#define ZSEEK64(filefunc,filestream,pos,mode)   ((*((filefunc).zseek64_file)) ((filefunc).opaque,filestream,pos,mode))
    193 #define ZCLOSE64(filefunc,filestream)             ((*((filefunc).zfile_func64.zclose_file))  ((filefunc).zfile_func64.opaque,filestream))
    194 #define ZERROR64(filefunc,filestream)             ((*((filefunc).zfile_func64.zerror_file))  ((filefunc).zfile_func64.opaque,filestream))
    195 
    196 voidpf call_zopen64(const zlib_filefunc64_32_def* pfilefunc,const void*filename,int mode);
    197 long call_zseek64(const zlib_filefunc64_32_def* pfilefunc,voidpf filestream, ZPOS64_T offset, int origin);
    198 ZPOS64_T call_ztell64(const zlib_filefunc64_32_def* pfilefunc,voidpf filestream);
    199 
    200 void fill_zlib_filefunc64_32_def_from_filefunc32(zlib_filefunc64_32_def* p_filefunc64_32,const zlib_filefunc_def* p_filefunc32);
    201 
    202 #define ZOPEN64(filefunc,filename,mode)         (call_zopen64((&(filefunc)),(filename),(mode)))
    203 #define ZTELL64(filefunc,filestream)            (call_ztell64((&(filefunc)),(filestream)))
    204 #define ZSEEK64(filefunc,filestream,pos,mode)   (call_zseek64((&(filefunc)),(filestream),(pos),(mode)))
    205 
    206 #ifdef __cplusplus
    207 }
    208 #endif
    209 
    210 #endif
    211