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1 /* ioapi.c -- IO base function header for compress/uncompress .zip | 1 /* ioapi.h -- IO base function header for compress/uncompress .zip |
2 files using zlib + zip or unzip API | 2 part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html
) |
3 | 3 |
4 Version 1.01e, February 12th, 2005 | 4 Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.
com/zLibDll/minizip.html ) |
5 | 5 |
6 Copyright (C) 1998-2005 Gilles Vollant | 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 |
7 */ | 11 */ |
8 | 12 |
9 #include <stdio.h> | 13 #if (defined(_WIN32)) |
10 #include <stdlib.h> | 14 #define _CRT_SECURE_NO_WARNINGS |
11 #include <string.h> | |
12 | |
13 #if defined(USE_SYSTEM_ZLIB) | |
14 #include <zlib.h> | |
15 #else | |
16 #include "third_party/zlib/zlib.h" | |
17 #endif | 15 #endif |
18 | 16 |
19 #include "ioapi.h" | 17 #include "ioapi.h" |
20 | 18 |
21 /* I've found an old Unix (a SunOS 4.1.3_U1) without all SEEK_* defined.... */ | 19 voidpf call_zopen64 (const zlib_filefunc64_32_def* pfilefunc,const void*filename
,int mode) |
| 20 { |
| 21 if (pfilefunc->zfile_func64.zopen64_file != NULL) |
| 22 return (*(pfilefunc->zfile_func64.zopen64_file)) (pfilefunc->zfile_func6
4.opaque,filename,mode); |
| 23 else |
| 24 { |
| 25 return (*(pfilefunc->zopen32_file))(pfilefunc->zfile_func64.opaque,(cons
t char*)filename,mode); |
| 26 } |
| 27 } |
22 | 28 |
23 #ifndef SEEK_CUR | 29 long call_zseek64 (const zlib_filefunc64_32_def* pfilefunc,voidpf filestream, ZP
OS64_T offset, int origin) |
24 #define SEEK_CUR 1 | 30 { |
25 #endif | 31 if (pfilefunc->zfile_func64.zseek64_file != NULL) |
| 32 return (*(pfilefunc->zfile_func64.zseek64_file)) (pfilefunc->zfile_func6
4.opaque,filestream,offset,origin); |
| 33 else |
| 34 { |
| 35 uLong offsetTruncated = (uLong)offset; |
| 36 if (offsetTruncated != offset) |
| 37 return -1; |
| 38 else |
| 39 return (*(pfilefunc->zseek32_file))(pfilefunc->zfile_func64.opaque,f
ilestream,offsetTruncated,origin); |
| 40 } |
| 41 } |
26 | 42 |
27 #ifndef SEEK_END | 43 ZPOS64_T call_ztell64 (const zlib_filefunc64_32_def* pfilefunc,voidpf filestream
) |
28 #define SEEK_END 2 | 44 { |
29 #endif | 45 if (pfilefunc->zfile_func64.zseek64_file != NULL) |
| 46 return (*(pfilefunc->zfile_func64.ztell64_file)) (pfilefunc->zfile_func6
4.opaque,filestream); |
| 47 else |
| 48 { |
| 49 uLong tell_uLong = (*(pfilefunc->ztell32_file))(pfilefunc->zfile_func64.
opaque,filestream); |
| 50 if ((tell_uLong) == ((uLong)-1)) |
| 51 return (ZPOS64_T)-1; |
| 52 else |
| 53 return tell_uLong; |
| 54 } |
| 55 } |
30 | 56 |
31 #ifndef SEEK_SET | 57 void fill_zlib_filefunc64_32_def_from_filefunc32(zlib_filefunc64_32_def* p_filef
unc64_32,const zlib_filefunc_def* p_filefunc32) |
32 #define SEEK_SET 0 | 58 { |
33 #endif | 59 p_filefunc64_32->zfile_func64.zopen64_file = NULL; |
34 | 60 p_filefunc64_32->zopen32_file = p_filefunc32->zopen_file; |
35 voidpf ZCALLBACK fopen_file_func OF(( | 61 p_filefunc64_32->zfile_func64.zerror_file = p_filefunc32->zerror_file; |
36 voidpf opaque, | 62 p_filefunc64_32->zfile_func64.zread_file = p_filefunc32->zread_file; |
37 const char* filename, | 63 p_filefunc64_32->zfile_func64.zwrite_file = p_filefunc32->zwrite_file; |
38 int mode)); | 64 p_filefunc64_32->zfile_func64.ztell64_file = NULL; |
39 | 65 p_filefunc64_32->zfile_func64.zseek64_file = NULL; |
40 uLong ZCALLBACK fread_file_func OF(( | 66 p_filefunc64_32->zfile_func64.zclose_file = p_filefunc32->zclose_file; |
41 voidpf opaque, | 67 p_filefunc64_32->zfile_func64.zerror_file = p_filefunc32->zerror_file; |
42 voidpf stream, | 68 p_filefunc64_32->zfile_func64.opaque = p_filefunc32->opaque; |
43 void* buf, | 69 p_filefunc64_32->zseek32_file = p_filefunc32->zseek_file; |
44 uLong size)); | 70 p_filefunc64_32->ztell32_file = p_filefunc32->ztell_file; |
45 | 71 } |
46 uLong ZCALLBACK fwrite_file_func OF(( | |
47 voidpf opaque, | |
48 voidpf stream, | |
49 const void* buf, | |
50 uLong size)); | |
51 | |
52 long ZCALLBACK ftell_file_func OF(( | |
53 voidpf opaque, | |
54 voidpf stream)); | |
55 | |
56 long ZCALLBACK fseek_file_func OF(( | |
57 voidpf opaque, | |
58 voidpf stream, | |
59 uLong offset, | |
60 int origin)); | |
61 | |
62 int ZCALLBACK fclose_file_func OF(( | |
63 voidpf opaque, | |
64 voidpf stream)); | |
65 | |
66 int ZCALLBACK ferror_file_func OF(( | |
67 voidpf opaque, | |
68 voidpf stream)); | |
69 | 72 |
70 | 73 |
71 voidpf ZCALLBACK fopen_file_func (opaque, filename, mode) | 74 |
72 voidpf opaque; | 75 static voidpf ZCALLBACK fopen_file_func OF((voidpf opaque, const char* filename
, int mode)); |
73 const char* filename; | 76 static uLong ZCALLBACK fread_file_func OF((voidpf opaque, voidpf stream, void*
buf, uLong size)); |
74 int mode; | 77 static uLong ZCALLBACK fwrite_file_func OF((voidpf opaque, voidpf stream, cons
t void* buf,uLong size)); |
| 78 static ZPOS64_T ZCALLBACK ftell64_file_func OF((voidpf opaque, voidpf stream)); |
| 79 static long ZCALLBACK fseek64_file_func OF((voidpf opaque, voidpf stream, ZPO
S64_T offset, int origin)); |
| 80 static int ZCALLBACK fclose_file_func OF((voidpf opaque, voidpf stream)); |
| 81 static int ZCALLBACK ferror_file_func OF((voidpf opaque, voidpf stream)); |
| 82 |
| 83 static voidpf ZCALLBACK fopen_file_func (voidpf opaque, const char* filename, in
t mode) |
75 { | 84 { |
76 FILE* file = NULL; | 85 FILE* file = NULL; |
77 const char* mode_fopen = NULL; | 86 const char* mode_fopen = NULL; |
| 87 if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ) |
| 88 mode_fopen = "rb"; |
| 89 else |
| 90 if (mode & ZLIB_FILEFUNC_MODE_EXISTING) |
| 91 mode_fopen = "r+b"; |
| 92 else |
| 93 if (mode & ZLIB_FILEFUNC_MODE_CREATE) |
| 94 mode_fopen = "wb"; |
| 95 |
| 96 if ((filename!=NULL) && (mode_fopen != NULL)) |
| 97 file = fopen(filename, mode_fopen); |
| 98 return file; |
| 99 } |
| 100 |
| 101 static voidpf ZCALLBACK fopen64_file_func (voidpf opaque, const void* filename,
int mode) |
| 102 { |
| 103 FILE* file = NULL; |
| 104 const char* mode_fopen = NULL; |
78 if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ) | 105 if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ) |
79 mode_fopen = "rb"; | 106 mode_fopen = "rb"; |
80 else | 107 else |
81 if (mode & ZLIB_FILEFUNC_MODE_EXISTING) | 108 if (mode & ZLIB_FILEFUNC_MODE_EXISTING) |
82 mode_fopen = "r+b"; | 109 mode_fopen = "r+b"; |
83 else | 110 else |
84 if (mode & ZLIB_FILEFUNC_MODE_CREATE) | 111 if (mode & ZLIB_FILEFUNC_MODE_CREATE) |
85 mode_fopen = "wb"; | 112 mode_fopen = "wb"; |
86 | 113 |
87 if ((filename!=NULL) && (mode_fopen != NULL)) | 114 if ((filename!=NULL) && (mode_fopen != NULL)) |
88 file = fopen(filename, mode_fopen); | 115 file = fopen64((const char*)filename, mode_fopen); |
89 return file; | 116 return file; |
90 } | 117 } |
91 | 118 |
92 | 119 |
93 uLong ZCALLBACK fread_file_func (opaque, stream, buf, size) | 120 static uLong ZCALLBACK fread_file_func (voidpf opaque, voidpf stream, void* buf,
uLong size) |
94 voidpf opaque; | |
95 voidpf stream; | |
96 void* buf; | |
97 uLong size; | |
98 { | 121 { |
99 uLong ret; | 122 uLong ret; |
100 ret = (uLong)fread(buf, 1, (size_t)size, (FILE *)stream); | 123 ret = (uLong)fread(buf, 1, (size_t)size, (FILE *)stream); |
101 return ret; | 124 return ret; |
102 } | 125 } |
103 | 126 |
104 | 127 static uLong ZCALLBACK fwrite_file_func (voidpf opaque, voidpf stream, const voi
d* buf, uLong size) |
105 uLong ZCALLBACK fwrite_file_func (opaque, stream, buf, size) | |
106 voidpf opaque; | |
107 voidpf stream; | |
108 const void* buf; | |
109 uLong size; | |
110 { | 128 { |
111 uLong ret; | 129 uLong ret; |
112 ret = (uLong)fwrite(buf, 1, (size_t)size, (FILE *)stream); | 130 ret = (uLong)fwrite(buf, 1, (size_t)size, (FILE *)stream); |
113 return ret; | 131 return ret; |
114 } | 132 } |
115 | 133 |
116 long ZCALLBACK ftell_file_func (opaque, stream) | 134 static long ZCALLBACK ftell_file_func (voidpf opaque, voidpf stream) |
117 voidpf opaque; | |
118 voidpf stream; | |
119 { | 135 { |
120 long ret; | 136 long ret; |
121 ret = ftell((FILE *)stream); | 137 ret = ftell((FILE *)stream); |
122 return ret; | 138 return ret; |
123 } | 139 } |
124 | 140 |
125 long ZCALLBACK fseek_file_func (opaque, stream, offset, origin) | 141 |
126 voidpf opaque; | 142 static ZPOS64_T ZCALLBACK ftell64_file_func (voidpf opaque, voidpf stream) |
127 voidpf stream; | 143 { |
128 uLong offset; | 144 ZPOS64_T ret; |
129 int origin; | 145 ret = ftello64((FILE *)stream); |
| 146 return ret; |
| 147 } |
| 148 |
| 149 static long ZCALLBACK fseek_file_func (voidpf opaque, voidpf stream, uLong offs
et, int origin) |
130 { | 150 { |
131 int fseek_origin=0; | 151 int fseek_origin=0; |
132 long ret; | 152 long ret; |
133 switch (origin) | 153 switch (origin) |
134 { | 154 { |
135 case ZLIB_FILEFUNC_SEEK_CUR : | 155 case ZLIB_FILEFUNC_SEEK_CUR : |
136 fseek_origin = SEEK_CUR; | 156 fseek_origin = SEEK_CUR; |
137 break; | 157 break; |
138 case ZLIB_FILEFUNC_SEEK_END : | 158 case ZLIB_FILEFUNC_SEEK_END : |
139 fseek_origin = SEEK_END; | 159 fseek_origin = SEEK_END; |
140 break; | 160 break; |
141 case ZLIB_FILEFUNC_SEEK_SET : | 161 case ZLIB_FILEFUNC_SEEK_SET : |
142 fseek_origin = SEEK_SET; | 162 fseek_origin = SEEK_SET; |
143 break; | 163 break; |
144 default: return -1; | 164 default: return -1; |
145 } | 165 } |
146 ret = 0; | 166 ret = 0; |
147 fseek((FILE *)stream, offset, fseek_origin); | 167 if (fseek((FILE *)stream, offset, fseek_origin) != 0) |
| 168 ret = -1; |
148 return ret; | 169 return ret; |
149 } | 170 } |
150 | 171 |
151 int ZCALLBACK fclose_file_func (opaque, stream) | 172 static long ZCALLBACK fseek64_file_func (voidpf opaque, voidpf stream, ZPOS64_T
offset, int origin) |
152 voidpf opaque; | 173 { |
153 voidpf stream; | 174 int fseek_origin=0; |
| 175 long ret; |
| 176 switch (origin) |
| 177 { |
| 178 case ZLIB_FILEFUNC_SEEK_CUR : |
| 179 fseek_origin = SEEK_CUR; |
| 180 break; |
| 181 case ZLIB_FILEFUNC_SEEK_END : |
| 182 fseek_origin = SEEK_END; |
| 183 break; |
| 184 case ZLIB_FILEFUNC_SEEK_SET : |
| 185 fseek_origin = SEEK_SET; |
| 186 break; |
| 187 default: return -1; |
| 188 } |
| 189 ret = 0; |
| 190 |
| 191 if(fseeko64((FILE *)stream, offset, fseek_origin) != 0) |
| 192 ret = -1; |
| 193 |
| 194 return ret; |
| 195 } |
| 196 |
| 197 |
| 198 static int ZCALLBACK fclose_file_func (voidpf opaque, voidpf stream) |
154 { | 199 { |
155 int ret; | 200 int ret; |
156 ret = fclose((FILE *)stream); | 201 ret = fclose((FILE *)stream); |
157 return ret; | 202 return ret; |
158 } | 203 } |
159 | 204 |
160 int ZCALLBACK ferror_file_func (opaque, stream) | 205 static int ZCALLBACK ferror_file_func (voidpf opaque, voidpf stream) |
161 voidpf opaque; | |
162 voidpf stream; | |
163 { | 206 { |
164 int ret; | 207 int ret; |
165 ret = ferror((FILE *)stream); | 208 ret = ferror((FILE *)stream); |
166 return ret; | 209 return ret; |
167 } | 210 } |
168 | 211 |
169 void fill_fopen_filefunc (pzlib_filefunc_def) | 212 void fill_fopen_filefunc (pzlib_filefunc_def) |
170 zlib_filefunc_def* pzlib_filefunc_def; | 213 zlib_filefunc_def* pzlib_filefunc_def; |
171 { | 214 { |
172 pzlib_filefunc_def->zopen_file = fopen_file_func; | 215 pzlib_filefunc_def->zopen_file = fopen_file_func; |
173 pzlib_filefunc_def->zread_file = fread_file_func; | 216 pzlib_filefunc_def->zread_file = fread_file_func; |
174 pzlib_filefunc_def->zwrite_file = fwrite_file_func; | 217 pzlib_filefunc_def->zwrite_file = fwrite_file_func; |
175 pzlib_filefunc_def->ztell_file = ftell_file_func; | 218 pzlib_filefunc_def->ztell_file = ftell_file_func; |
176 pzlib_filefunc_def->zseek_file = fseek_file_func; | 219 pzlib_filefunc_def->zseek_file = fseek_file_func; |
177 pzlib_filefunc_def->zclose_file = fclose_file_func; | 220 pzlib_filefunc_def->zclose_file = fclose_file_func; |
178 pzlib_filefunc_def->zerror_file = ferror_file_func; | 221 pzlib_filefunc_def->zerror_file = ferror_file_func; |
179 pzlib_filefunc_def->opaque = NULL; | 222 pzlib_filefunc_def->opaque = NULL; |
180 } | 223 } |
| 224 |
| 225 void fill_fopen64_filefunc (zlib_filefunc64_def* pzlib_filefunc_def) |
| 226 { |
| 227 pzlib_filefunc_def->zopen64_file = fopen64_file_func; |
| 228 pzlib_filefunc_def->zread_file = fread_file_func; |
| 229 pzlib_filefunc_def->zwrite_file = fwrite_file_func; |
| 230 pzlib_filefunc_def->ztell64_file = ftell64_file_func; |
| 231 pzlib_filefunc_def->zseek64_file = fseek64_file_func; |
| 232 pzlib_filefunc_def->zclose_file = fclose_file_func; |
| 233 pzlib_filefunc_def->zerror_file = ferror_file_func; |
| 234 pzlib_filefunc_def->opaque = NULL; |
| 235 } |
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