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
 87typedef  64BIT_INT_CUSTOM_TYPE ZPOS64_T;
 88#else
 89#ifdef HAS_STDINT_H
 90#include "stdint.h"
 91typedef 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__)
 98typedef unsigned __int64 ZPOS64_T;
 99#else
100typedef unsigned long long int ZPOS64_T;
101#endif
102#endif
103#endif
104
105
106
107#ifdef __cplusplus
108extern "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
135typedef voidpf   (ZCALLBACK *open_file_func)      OF((voidpf opaque, const char* filename, int mode));
136typedef uLong    (ZCALLBACK *read_file_func)      OF((voidpf opaque, voidpf stream, void* buf, uLong size));
137typedef uLong    (ZCALLBACK *write_file_func)     OF((voidpf opaque, voidpf stream, const void* buf, uLong size));
138typedef int      (ZCALLBACK *close_file_func)     OF((voidpf opaque, voidpf stream));
139typedef int      (ZCALLBACK *testerror_file_func) OF((voidpf opaque, voidpf stream));
140
141typedef long     (ZCALLBACK *tell_file_func)      OF((voidpf opaque, voidpf stream));
142typedef 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 */
146typedef 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
158typedef ZPOS64_T (ZCALLBACK *tell64_file_func)    OF((voidpf opaque, voidpf stream));
159typedef long     (ZCALLBACK *seek64_file_func)    OF((voidpf opaque, voidpf stream, ZPOS64_T offset, int origin));
160typedef voidpf   (ZCALLBACK *open64_file_func)    OF((voidpf opaque, const void* filename, int mode));
161
162typedef 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
174void fill_fopen64_filefunc OF((zlib_filefunc64_def* pzlib_filefunc_def));
175void fill_fopen_filefunc OF((zlib_filefunc_def* pzlib_filefunc_def));
176
177/* now internal definition, only for zip.c and unzip.h */
178typedef 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
194voidpf call_zopen64 OF((const zlib_filefunc64_32_def* pfilefunc,const void*filename,int mode));
195long    call_zseek64 OF((const zlib_filefunc64_32_def* pfilefunc,voidpf filestream, ZPOS64_T offset, int origin));
196ZPOS64_T call_ztell64 OF((const zlib_filefunc64_32_def* pfilefunc,voidpf filestream));
197
198void    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