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#ifndef OF
133#define OF(args) args
134#endif
135
136typedef voidpf (ZCALLBACK *open_file_func) OF((voidpf opaque, const char* filename, int mode));
137typedef uLong (ZCALLBACK *read_file_func) OF((voidpf opaque, voidpf stream, void* buf, uLong size));
138typedef uLong (ZCALLBACK *write_file_func) OF((voidpf opaque, voidpf stream, const void* buf, uLong size));
139typedef int (ZCALLBACK *close_file_func) OF((voidpf opaque, voidpf stream));
140typedef int (ZCALLBACK *testerror_file_func) OF((voidpf opaque, voidpf stream));
141
142typedef long (ZCALLBACK *tell_file_func) OF((voidpf opaque, voidpf stream));
143typedef long (ZCALLBACK *seek_file_func) OF((voidpf opaque, voidpf stream, uLong offset, int origin));
144
145
146/* here is the "old" 32 bits structure structure */
147typedef struct zlib_filefunc_def_s
148{
149 open_file_func zopen_file;
150 read_file_func zread_file;
151 write_file_func zwrite_file;
152 tell_file_func ztell_file;
153 seek_file_func zseek_file;
154 close_file_func zclose_file;
155 testerror_file_func zerror_file;
156 voidpf opaque;
157} zlib_filefunc_def;
158
159typedef ZPOS64_T (ZCALLBACK *tell64_file_func) OF((voidpf opaque, voidpf stream));
160typedef long (ZCALLBACK *seek64_file_func) OF((voidpf opaque, voidpf stream, ZPOS64_T offset, int origin));
161typedef voidpf (ZCALLBACK *open64_file_func) OF((voidpf opaque, const void* filename, int mode));
162
163typedef struct zlib_filefunc64_def_s
164{
165 open64_file_func zopen64_file;
166 read_file_func zread_file;
167 write_file_func zwrite_file;
168 tell64_file_func ztell64_file;
169 seek64_file_func zseek64_file;
170 close_file_func zclose_file;
171 testerror_file_func zerror_file;
172 voidpf opaque;
173} zlib_filefunc64_def;
174
175void fill_fopen64_filefunc OF((zlib_filefunc64_def* pzlib_filefunc_def));
176void fill_fopen_filefunc OF((zlib_filefunc_def* pzlib_filefunc_def));
177
178/* now internal definition, only for zip.c and unzip.h */
179typedef struct zlib_filefunc64_32_def_s
180{
181 zlib_filefunc64_def zfile_func64;
182 open_file_func zopen32_file;
183 tell_file_func ztell32_file;
184 seek_file_func zseek32_file;
185} zlib_filefunc64_32_def;
186
187
188#define ZREAD64(filefunc,filestream,buf,size) ((*((filefunc).zfile_func64.zread_file)) ((filefunc).zfile_func64.opaque,filestream,buf,size))
189#define ZWRITE64(filefunc,filestream,buf,size) ((*((filefunc).zfile_func64.zwrite_file)) ((filefunc).zfile_func64.opaque,filestream,buf,size))
190//#define ZTELL64(filefunc,filestream) ((*((filefunc).ztell64_file)) ((filefunc).opaque,filestream))
191//#define ZSEEK64(filefunc,filestream,pos,mode) ((*((filefunc).zseek64_file)) ((filefunc).opaque,filestream,pos,mode))
192#define ZCLOSE64(filefunc,filestream) ((*((filefunc).zfile_func64.zclose_file)) ((filefunc).zfile_func64.opaque,filestream))
193#define ZERROR64(filefunc,filestream) ((*((filefunc).zfile_func64.zerror_file)) ((filefunc).zfile_func64.opaque,filestream))
194
195voidpf call_zopen64 OF((const zlib_filefunc64_32_def* pfilefunc,const void*filename,int mode));
196long call_zseek64 OF((const zlib_filefunc64_32_def* pfilefunc,voidpf filestream, ZPOS64_T offset, int origin));
197ZPOS64_T call_ztell64 OF((const zlib_filefunc64_32_def* pfilefunc,voidpf filestream));
198
199void fill_zlib_filefunc64_32_def_from_filefunc32(zlib_filefunc64_32_def* p_filefunc64_32,const zlib_filefunc_def* p_filefunc32);
200
201#define ZOPEN64(filefunc,filename,mode) (call_zopen64((&(filefunc)),(filename),(mode)))
202#define ZTELL64(filefunc,filestream) (call_ztell64((&(filefunc)),(filestream)))
203#define ZSEEK64(filefunc,filestream,pos,mode) (call_zseek64((&(filefunc)),(filestream),(pos),(mode)))
204
205#ifdef __cplusplus
206}
207#endif
208
209#endif
210