1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
|
/* ioapi.c -- IO base function header for compress/uncompress .zip
files using zlib + zip or unzip API
Version 1.01, May 8th, 2004
Copyright (C) 1998-2004 Gilles Vollant
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "zlib.h"
#include "ioapi.h"
void *ZCALLBACK fopen_file_func(void *opaque, const char *filename, int mode)
{
FILE *file = NULL;
const char *mode_fopen = NULL;
if ((mode &ZLIB_FILEFUNC_MODE_READWRITEFILTER) == ZLIB_FILEFUNC_MODE_READ)
{
mode_fopen = "rb";
}
else
{
if (mode &ZLIB_FILEFUNC_MODE_EXISTING)
{
mode_fopen = "r+b";
}
else
{
if (mode &ZLIB_FILEFUNC_MODE_CREATE)
{
mode_fopen = "wb";
}
}
}
if ((filename != NULL) && (mode_fopen != NULL))
{
file = fopen(filename, mode_fopen);
}
return file;
}
//-------------------------------------------------------------------------
DWORD ZCALLBACK fread_file_func(void *opaque, void *stream, void *buf, DWORD size)
{
return fread(buf, 1, (size_t)size, (FILE*)stream);
}
//-------------------------------------------------------------------------
DWORD ZCALLBACK fwrite_file_func(void *opaque, void *stream, const void *buf, DWORD size)
{
return fwrite(buf, 1, (size_t)size, (FILE*)stream);
}
//-------------------------------------------------------------------------
long ZCALLBACK ftell_file_func(void *opaque, void *stream)
{
return ftell((FILE*)stream);
}
//-------------------------------------------------------------------------
long ZCALLBACK fseek_file_func(void *opaque, void *stream, DWORD offset, int origin)
{
fseek((FILE*)stream, offset, origin);
return 0;
}
//-------------------------------------------------------------------------
int ZCALLBACK fclose_file_func(void *opaque, void *stream)
{
return fclose((FILE*)stream);
}
//-------------------------------------------------------------------------
int ZCALLBACK ferror_file_func(void *opaque, void *stream)
{
return ferror((FILE*)stream);
}
//-------------------------------------------------------------------------
void fill_fopen_filefunc(zlib_filefunc_def *pzlib_filefunc_def)
{
pzlib_filefunc_def->zopen_file = fopen_file_func;
pzlib_filefunc_def->zread_file = fread_file_func;
pzlib_filefunc_def->zwrite_file = fwrite_file_func;
pzlib_filefunc_def->ztell_file = ftell_file_func;
pzlib_filefunc_def->zseek_file = fseek_file_func;
pzlib_filefunc_def->zclose_file = fclose_file_func;
pzlib_filefunc_def->zerror_file = ferror_file_func;
pzlib_filefunc_def->opaque = NULL;
}
|
