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