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))
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#endif
42
43#include <stdio.h>
44#include <stdlib.h>
45#include "third_party/zlib/zlib.h"
46
47#if defined(USE_FILE32API)
48#define fopen64 fopen
49#define ftello64 ftell
50#define fseeko64 fseek
51#else
52#ifdef _MSC_VER
53 #define fopen64 fopen
54 #if (_MSC_VER >= 1400) && (!(defined(NO_MSCVER_FILE64_FUNC)))
55  #define ftello64 _ftelli64
56  #define fseeko64 _fseeki64
57 #else // old MSC
58  #define ftello64 ftell
59  #define fseeko64 fseek
60 #endif
61#endif
62#endif
63
64/*
65#ifndef ZPOS64_T
66  #ifdef _WIN32
67                #define ZPOS64_T fpos_t
68  #else
69    #include <stdint.h>
70    #define ZPOS64_T uint64_t
71  #endif
72#endif
73*/
74
75#ifdef HAVE_MINIZIP64_CONF_H
76#include "mz64conf.h"
77#endif
78
79/* a type choosen by DEFINE */
80#ifdef HAVE_64BIT_INT_CUSTOM
81typedef  64BIT_INT_CUSTOM_TYPE ZPOS64_T;
82#else
83#ifdef HAS_STDINT_H
84#include "stdint.h"
85typedef uint64_t ZPOS64_T;
86#else
87
88
89#if defined(_MSC_VER) || defined(__BORLANDC__)
90typedef unsigned __int64 ZPOS64_T;
91#else
92typedef unsigned long long int ZPOS64_T;
93#endif
94#endif
95#endif
96
97
98
99#ifdef __cplusplus
100extern "C" {
101#endif
102
103
104#define ZLIB_FILEFUNC_SEEK_CUR (1)
105#define ZLIB_FILEFUNC_SEEK_END (2)
106#define ZLIB_FILEFUNC_SEEK_SET (0)
107
108#define ZLIB_FILEFUNC_MODE_READ      (1)
109#define ZLIB_FILEFUNC_MODE_WRITE     (2)
110#define ZLIB_FILEFUNC_MODE_READWRITEFILTER (3)
111
112#define ZLIB_FILEFUNC_MODE_EXISTING (4)
113#define ZLIB_FILEFUNC_MODE_CREATE   (8)
114
115
116#ifndef ZCALLBACK
117 #if (defined(WIN32) || defined(_WIN32) || defined (WINDOWS) || defined (_WINDOWS)) && defined(CALLBACK) && defined (USEWINDOWS_CALLBACK)
118   #define ZCALLBACK CALLBACK
119 #else
120   #define ZCALLBACK
121 #endif
122#endif
123
124
125
126
127typedef voidpf   (ZCALLBACK *open_file_func)      OF((voidpf opaque, const char* filename, int mode));
128typedef uLong    (ZCALLBACK *read_file_func)      OF((voidpf opaque, voidpf stream, void* buf, uLong size));
129typedef uLong    (ZCALLBACK *write_file_func)     OF((voidpf opaque, voidpf stream, const void* buf, uLong size));
130typedef int      (ZCALLBACK *close_file_func)     OF((voidpf opaque, voidpf stream));
131typedef int      (ZCALLBACK *testerror_file_func) OF((voidpf opaque, voidpf stream));
132
133typedef long     (ZCALLBACK *tell_file_func)      OF((voidpf opaque, voidpf stream));
134typedef long     (ZCALLBACK *seek_file_func)      OF((voidpf opaque, voidpf stream, uLong offset, int origin));
135
136
137/* here is the "old" 32 bits structure structure */
138typedef struct zlib_filefunc_def_s
139{
140    open_file_func      zopen_file;
141    read_file_func      zread_file;
142    write_file_func     zwrite_file;
143    tell_file_func      ztell_file;
144    seek_file_func      zseek_file;
145    close_file_func     zclose_file;
146    testerror_file_func zerror_file;
147    voidpf              opaque;
148} zlib_filefunc_def;
149
150typedef ZPOS64_T (ZCALLBACK *tell64_file_func)    OF((voidpf opaque, voidpf stream));
151typedef long     (ZCALLBACK *seek64_file_func)    OF((voidpf opaque, voidpf stream, ZPOS64_T offset, int origin));
152typedef voidpf   (ZCALLBACK *open64_file_func)    OF((voidpf opaque, const void* filename, int mode));
153
154typedef struct zlib_filefunc64_def_s
155{
156    open64_file_func    zopen64_file;
157    read_file_func      zread_file;
158    write_file_func     zwrite_file;
159    tell64_file_func    ztell64_file;
160    seek64_file_func    zseek64_file;
161    close_file_func     zclose_file;
162    testerror_file_func zerror_file;
163    voidpf              opaque;
164} zlib_filefunc64_def;
165
166void fill_fopen64_filefunc OF((zlib_filefunc64_def* pzlib_filefunc_def));
167void fill_fopen_filefunc OF((zlib_filefunc_def* pzlib_filefunc_def));
168
169/* now internal definition, only for zip.c and unzip.h */
170typedef struct zlib_filefunc64_32_def_s
171{
172    zlib_filefunc64_def zfile_func64;
173    open_file_func      zopen32_file;
174    tell_file_func      ztell32_file;
175    seek_file_func      zseek32_file;
176} zlib_filefunc64_32_def;
177
178
179#define ZREAD64(filefunc,filestream,buf,size)     ((*((filefunc).zfile_func64.zread_file))   ((filefunc).zfile_func64.opaque,filestream,buf,size))
180#define ZWRITE64(filefunc,filestream,buf,size)    ((*((filefunc).zfile_func64.zwrite_file))  ((filefunc).zfile_func64.opaque,filestream,buf,size))
181//#define ZTELL64(filefunc,filestream)            ((*((filefunc).ztell64_file)) ((filefunc).opaque,filestream))
182//#define ZSEEK64(filefunc,filestream,pos,mode)   ((*((filefunc).zseek64_file)) ((filefunc).opaque,filestream,pos,mode))
183#define ZCLOSE64(filefunc,filestream)             ((*((filefunc).zfile_func64.zclose_file))  ((filefunc).zfile_func64.opaque,filestream))
184#define ZERROR64(filefunc,filestream)             ((*((filefunc).zfile_func64.zerror_file))  ((filefunc).zfile_func64.opaque,filestream))
185
186voidpf call_zopen64 OF((const zlib_filefunc64_32_def* pfilefunc,const void*filename,int mode));
187long    call_zseek64 OF((const zlib_filefunc64_32_def* pfilefunc,voidpf filestream, ZPOS64_T offset, int origin));
188ZPOS64_T call_ztell64 OF((const zlib_filefunc64_32_def* pfilefunc,voidpf filestream));
189
190void    fill_zlib_filefunc64_32_def_from_filefunc32(zlib_filefunc64_32_def* p_filefunc64_32,const zlib_filefunc_def* p_filefunc32);
191
192#define ZOPEN64(filefunc,filename,mode)         (call_zopen64((&(filefunc)),(filename),(mode)))
193#define ZTELL64(filefunc,filestream)            (call_ztell64((&(filefunc)),(filestream)))
194#define ZSEEK64(filefunc,filestream,pos,mode)   (call_zseek64((&(filefunc)),(filestream),(pos),(mode)))
195
196#ifdef __cplusplus
197}
198#endif
199
200#endif
201