Commit | Line | Data |
---|---|---|
5ca28f79 L |
1 | /* iowin32.c -- IO base function header for compress/uncompress .zip |
2 | Version 1.1, February 14h, 2010 | |
3 | part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html ) | |
4 | ||
5 | Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html ) | |
6 | ||
7 | Modifications for Zip64 support | |
8 | Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com ) | |
9 | ||
10 | For more info read MiniZip_info.txt | |
11 | ||
12 | */ | |
13 | ||
14 | #include <stdlib.h> | |
15 | ||
16 | #include "zlib.h" | |
17 | #include "ioapi.h" | |
18 | #include "iowin32.h" | |
19 | ||
20 | #ifndef INVALID_HANDLE_VALUE | |
21 | #define INVALID_HANDLE_VALUE (0xFFFFFFFF) | |
22 | #endif | |
23 | ||
24 | #ifndef INVALID_SET_FILE_POINTER | |
25 | #define INVALID_SET_FILE_POINTER ((DWORD)-1) | |
26 | #endif | |
27 | ||
28 | voidpf ZCALLBACK win32_open_file_func OF((voidpf opaque, const char* filename, int mode)); | |
29 | uLong ZCALLBACK win32_read_file_func OF((voidpf opaque, voidpf stream, void* buf, uLong size)); | |
30 | uLong ZCALLBACK win32_write_file_func OF((voidpf opaque, voidpf stream, const void* buf, uLong size)); | |
31 | ZPOS64_T ZCALLBACK win32_tell64_file_func OF((voidpf opaque, voidpf stream)); | |
32 | long ZCALLBACK win32_seek64_file_func OF((voidpf opaque, voidpf stream, ZPOS64_T offset, int origin)); | |
33 | int ZCALLBACK win32_close_file_func OF((voidpf opaque, voidpf stream)); | |
34 | int ZCALLBACK win32_error_file_func OF((voidpf opaque, voidpf stream)); | |
35 | ||
36 | typedef struct | |
37 | { | |
38 | HANDLE hf; | |
39 | int error; | |
40 | } WIN32FILE_IOWIN; | |
41 | ||
42 | ||
43 | static void win32_translate_open_mode(int mode, | |
44 | DWORD* lpdwDesiredAccess, | |
45 | DWORD* lpdwCreationDisposition, | |
46 | DWORD* lpdwShareMode, | |
47 | DWORD* lpdwFlagsAndAttributes) | |
48 | { | |
49 | *lpdwDesiredAccess = *lpdwShareMode = *lpdwFlagsAndAttributes = *lpdwCreationDisposition = 0; | |
50 | ||
51 | if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ) | |
52 | { | |
53 | *lpdwDesiredAccess = GENERIC_READ; | |
54 | *lpdwCreationDisposition = OPEN_EXISTING; | |
55 | *lpdwShareMode = FILE_SHARE_READ; | |
56 | } | |
57 | else if (mode & ZLIB_FILEFUNC_MODE_EXISTING) | |
58 | { | |
59 | *lpdwDesiredAccess = GENERIC_WRITE | GENERIC_READ; | |
60 | *lpdwCreationDisposition = OPEN_EXISTING; | |
61 | } | |
62 | else if (mode & ZLIB_FILEFUNC_MODE_CREATE) | |
63 | { | |
64 | *lpdwDesiredAccess = GENERIC_WRITE | GENERIC_READ; | |
65 | *lpdwCreationDisposition = CREATE_ALWAYS; | |
66 | } | |
67 | } | |
68 | ||
69 | static voidpf win32_build_iowin(HANDLE hFile) | |
70 | { | |
71 | voidpf ret=NULL; | |
72 | ||
73 | if ((hFile != NULL) && (hFile != INVALID_HANDLE_VALUE)) | |
74 | { | |
75 | WIN32FILE_IOWIN w32fiow; | |
76 | w32fiow.hf = hFile; | |
77 | w32fiow.error = 0; | |
78 | ret = malloc(sizeof(WIN32FILE_IOWIN)); | |
79 | ||
80 | if (ret==NULL) | |
81 | CloseHandle(hFile); | |
82 | else | |
83 | *((WIN32FILE_IOWIN*)ret) = w32fiow; | |
84 | } | |
85 | return ret; | |
86 | } | |
87 | ||
88 | voidpf ZCALLBACK win32_open64_file_func (voidpf opaque,const void* filename,int mode) | |
89 | { | |
90 | const char* mode_fopen = NULL; | |
91 | DWORD dwDesiredAccess,dwCreationDisposition,dwShareMode,dwFlagsAndAttributes ; | |
92 | HANDLE hFile = NULL; | |
93 | ||
94 | win32_translate_open_mode(mode,&dwDesiredAccess,&dwCreationDisposition,&dwShareMode,&dwFlagsAndAttributes); | |
95 | ||
96 | if ((filename!=NULL) && (dwDesiredAccess != 0)) | |
97 | hFile = CreateFile((LPCTSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL); | |
98 | ||
99 | return win32_build_iowin(hFile); | |
100 | } | |
101 | ||
102 | ||
103 | voidpf ZCALLBACK win32_open64_file_funcA (voidpf opaque,const void* filename,int mode) | |
104 | { | |
105 | const char* mode_fopen = NULL; | |
106 | DWORD dwDesiredAccess,dwCreationDisposition,dwShareMode,dwFlagsAndAttributes ; | |
107 | HANDLE hFile = NULL; | |
108 | ||
109 | win32_translate_open_mode(mode,&dwDesiredAccess,&dwCreationDisposition,&dwShareMode,&dwFlagsAndAttributes); | |
110 | ||
111 | if ((filename!=NULL) && (dwDesiredAccess != 0)) | |
112 | hFile = CreateFileA((LPCSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL); | |
113 | ||
114 | return win32_build_iowin(hFile); | |
115 | } | |
116 | ||
117 | ||
118 | voidpf ZCALLBACK win32_open64_file_funcW (voidpf opaque,const void* filename,int mode) | |
119 | { | |
120 | const char* mode_fopen = NULL; | |
121 | DWORD dwDesiredAccess,dwCreationDisposition,dwShareMode,dwFlagsAndAttributes ; | |
122 | HANDLE hFile = NULL; | |
123 | ||
124 | win32_translate_open_mode(mode,&dwDesiredAccess,&dwCreationDisposition,&dwShareMode,&dwFlagsAndAttributes); | |
125 | ||
126 | if ((filename!=NULL) && (dwDesiredAccess != 0)) | |
127 | hFile = CreateFileW((LPCWSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL); | |
128 | ||
129 | return win32_build_iowin(hFile); | |
130 | } | |
131 | ||
132 | ||
133 | voidpf ZCALLBACK win32_open_file_func (voidpf opaque,const char* filename,int mode) | |
134 | { | |
135 | const char* mode_fopen = NULL; | |
136 | DWORD dwDesiredAccess,dwCreationDisposition,dwShareMode,dwFlagsAndAttributes ; | |
137 | HANDLE hFile = NULL; | |
138 | ||
139 | win32_translate_open_mode(mode,&dwDesiredAccess,&dwCreationDisposition,&dwShareMode,&dwFlagsAndAttributes); | |
140 | ||
141 | if ((filename!=NULL) && (dwDesiredAccess != 0)) | |
142 | hFile = CreateFile((LPCTSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL); | |
143 | ||
144 | return win32_build_iowin(hFile); | |
145 | } | |
146 | ||
147 | ||
148 | uLong ZCALLBACK win32_read_file_func (voidpf opaque, voidpf stream, void* buf,uLong size) | |
149 | { | |
150 | uLong ret=0; | |
151 | HANDLE hFile = NULL; | |
152 | if (stream!=NULL) | |
153 | hFile = ((WIN32FILE_IOWIN*)stream) -> hf; | |
154 | ||
155 | if (hFile != NULL) | |
156 | { | |
157 | if (!ReadFile(hFile, buf, size, &ret, NULL)) | |
158 | { | |
159 | DWORD dwErr = GetLastError(); | |
160 | if (dwErr == ERROR_HANDLE_EOF) | |
161 | dwErr = 0; | |
162 | ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr; | |
163 | } | |
164 | } | |
165 | ||
166 | return ret; | |
167 | } | |
168 | ||
169 | ||
170 | uLong ZCALLBACK win32_write_file_func (voidpf opaque,voidpf stream,const void* buf,uLong size) | |
171 | { | |
172 | uLong ret=0; | |
173 | HANDLE hFile = NULL; | |
174 | if (stream!=NULL) | |
175 | hFile = ((WIN32FILE_IOWIN*)stream) -> hf; | |
176 | ||
177 | if (hFile != NULL) | |
178 | { | |
179 | if (!WriteFile(hFile, buf, size, &ret, NULL)) | |
180 | { | |
181 | DWORD dwErr = GetLastError(); | |
182 | if (dwErr == ERROR_HANDLE_EOF) | |
183 | dwErr = 0; | |
184 | ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr; | |
185 | } | |
186 | } | |
187 | ||
188 | return ret; | |
189 | } | |
190 | ||
191 | long ZCALLBACK win32_tell_file_func (voidpf opaque,voidpf stream) | |
192 | { | |
193 | long ret=-1; | |
194 | HANDLE hFile = NULL; | |
195 | if (stream!=NULL) | |
196 | hFile = ((WIN32FILE_IOWIN*)stream) -> hf; | |
197 | if (hFile != NULL) | |
198 | { | |
199 | DWORD dwSet = SetFilePointer(hFile, 0, NULL, FILE_CURRENT); | |
200 | if (dwSet == INVALID_SET_FILE_POINTER) | |
201 | { | |
202 | DWORD dwErr = GetLastError(); | |
203 | ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr; | |
204 | ret = -1; | |
205 | } | |
206 | else | |
207 | ret=(long)dwSet; | |
208 | } | |
209 | return ret; | |
210 | } | |
211 | ||
212 | ZPOS64_T ZCALLBACK win32_tell64_file_func (voidpf opaque, voidpf stream) | |
213 | { | |
214 | ZPOS64_T ret= (ZPOS64_T)-1; | |
215 | HANDLE hFile = NULL; | |
216 | if (stream!=NULL) | |
217 | hFile = ((WIN32FILE_IOWIN*)stream)->hf; | |
218 | ||
219 | if (hFile) | |
220 | { | |
221 | LARGE_INTEGER li; | |
222 | li.QuadPart = 0; | |
223 | li.u.LowPart = SetFilePointer(hFile, li.u.LowPart, &li.u.HighPart, FILE_CURRENT); | |
224 | if ( (li.LowPart == 0xFFFFFFFF) && (GetLastError() != NO_ERROR)) | |
225 | { | |
226 | DWORD dwErr = GetLastError(); | |
227 | ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr; | |
228 | ret = (ZPOS64_T)-1; | |
229 | } | |
230 | else | |
231 | ret=li.QuadPart; | |
232 | } | |
233 | return ret; | |
234 | } | |
235 | ||
236 | ||
237 | long ZCALLBACK win32_seek_file_func (voidpf opaque,voidpf stream,uLong offset,int origin) | |
238 | { | |
239 | DWORD dwMoveMethod=0xFFFFFFFF; | |
240 | HANDLE hFile = NULL; | |
241 | ||
242 | long ret=-1; | |
243 | if (stream!=NULL) | |
244 | hFile = ((WIN32FILE_IOWIN*)stream) -> hf; | |
245 | switch (origin) | |
246 | { | |
247 | case ZLIB_FILEFUNC_SEEK_CUR : | |
248 | dwMoveMethod = FILE_CURRENT; | |
249 | break; | |
250 | case ZLIB_FILEFUNC_SEEK_END : | |
251 | dwMoveMethod = FILE_END; | |
252 | break; | |
253 | case ZLIB_FILEFUNC_SEEK_SET : | |
254 | dwMoveMethod = FILE_BEGIN; | |
255 | break; | |
256 | default: return -1; | |
257 | } | |
258 | ||
259 | if (hFile != NULL) | |
260 | { | |
261 | DWORD dwSet = SetFilePointer(hFile, offset, NULL, dwMoveMethod); | |
262 | if (dwSet == INVALID_SET_FILE_POINTER) | |
263 | { | |
264 | DWORD dwErr = GetLastError(); | |
265 | ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr; | |
266 | ret = -1; | |
267 | } | |
268 | else | |
269 | ret=0; | |
270 | } | |
271 | return ret; | |
272 | } | |
273 | ||
274 | long ZCALLBACK win32_seek64_file_func (voidpf opaque, voidpf stream,ZPOS64_T offset,int origin) | |
275 | { | |
276 | DWORD dwMoveMethod=0xFFFFFFFF; | |
277 | HANDLE hFile = NULL; | |
278 | long ret=-1; | |
279 | ||
280 | if (stream!=NULL) | |
281 | hFile = ((WIN32FILE_IOWIN*)stream)->hf; | |
282 | ||
283 | switch (origin) | |
284 | { | |
285 | case ZLIB_FILEFUNC_SEEK_CUR : | |
286 | dwMoveMethod = FILE_CURRENT; | |
287 | break; | |
288 | case ZLIB_FILEFUNC_SEEK_END : | |
289 | dwMoveMethod = FILE_END; | |
290 | break; | |
291 | case ZLIB_FILEFUNC_SEEK_SET : | |
292 | dwMoveMethod = FILE_BEGIN; | |
293 | break; | |
294 | default: return -1; | |
295 | } | |
296 | ||
297 | if (hFile) | |
298 | { | |
299 | LARGE_INTEGER* li = (LARGE_INTEGER*)&offset; | |
300 | DWORD dwSet = SetFilePointer(hFile, li->u.LowPart, &li->u.HighPart, dwMoveMethod); | |
301 | if (dwSet == INVALID_SET_FILE_POINTER) | |
302 | { | |
303 | DWORD dwErr = GetLastError(); | |
304 | ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr; | |
305 | ret = -1; | |
306 | } | |
307 | else | |
308 | ret=0; | |
309 | } | |
310 | return ret; | |
311 | } | |
312 | ||
313 | int ZCALLBACK win32_close_file_func (voidpf opaque, voidpf stream) | |
314 | { | |
315 | int ret=-1; | |
316 | ||
317 | if (stream!=NULL) | |
318 | { | |
319 | HANDLE hFile; | |
320 | hFile = ((WIN32FILE_IOWIN*)stream) -> hf; | |
321 | if (hFile != NULL) | |
322 | { | |
323 | CloseHandle(hFile); | |
324 | ret=0; | |
325 | } | |
326 | free(stream); | |
327 | } | |
328 | return ret; | |
329 | } | |
330 | ||
331 | int ZCALLBACK win32_error_file_func (voidpf opaque,voidpf stream) | |
332 | { | |
333 | int ret=-1; | |
334 | if (stream!=NULL) | |
335 | { | |
336 | ret = ((WIN32FILE_IOWIN*)stream) -> error; | |
337 | } | |
338 | return ret; | |
339 | } | |
340 | ||
341 | void fill_win32_filefunc (zlib_filefunc_def* pzlib_filefunc_def) | |
342 | { | |
343 | pzlib_filefunc_def->zopen_file = win32_open_file_func; | |
344 | pzlib_filefunc_def->zread_file = win32_read_file_func; | |
345 | pzlib_filefunc_def->zwrite_file = win32_write_file_func; | |
346 | pzlib_filefunc_def->ztell_file = win32_tell_file_func; | |
347 | pzlib_filefunc_def->zseek_file = win32_seek_file_func; | |
348 | pzlib_filefunc_def->zclose_file = win32_close_file_func; | |
349 | pzlib_filefunc_def->zerror_file = win32_error_file_func; | |
350 | pzlib_filefunc_def->opaque = NULL; | |
351 | } | |
352 | ||
353 | void fill_win32_filefunc64(zlib_filefunc64_def* pzlib_filefunc_def) | |
354 | { | |
355 | pzlib_filefunc_def->zopen64_file = win32_open64_file_func; | |
356 | pzlib_filefunc_def->zread_file = win32_read_file_func; | |
357 | pzlib_filefunc_def->zwrite_file = win32_write_file_func; | |
358 | pzlib_filefunc_def->ztell64_file = win32_tell64_file_func; | |
359 | pzlib_filefunc_def->zseek64_file = win32_seek64_file_func; | |
360 | pzlib_filefunc_def->zclose_file = win32_close_file_func; | |
361 | pzlib_filefunc_def->zerror_file = win32_error_file_func; | |
362 | pzlib_filefunc_def->opaque = NULL; | |
363 | } | |
364 | ||
365 | ||
366 | void fill_win32_filefunc64A(zlib_filefunc64_def* pzlib_filefunc_def) | |
367 | { | |
368 | pzlib_filefunc_def->zopen64_file = win32_open64_file_funcA; | |
369 | pzlib_filefunc_def->zread_file = win32_read_file_func; | |
370 | pzlib_filefunc_def->zwrite_file = win32_write_file_func; | |
371 | pzlib_filefunc_def->ztell64_file = win32_tell64_file_func; | |
372 | pzlib_filefunc_def->zseek64_file = win32_seek64_file_func; | |
373 | pzlib_filefunc_def->zclose_file = win32_close_file_func; | |
374 | pzlib_filefunc_def->zerror_file = win32_error_file_func; | |
375 | pzlib_filefunc_def->opaque = NULL; | |
376 | } | |
377 | ||
378 | ||
379 | void fill_win32_filefunc64W(zlib_filefunc64_def* pzlib_filefunc_def) | |
380 | { | |
381 | pzlib_filefunc_def->zopen64_file = win32_open64_file_funcW; | |
382 | pzlib_filefunc_def->zread_file = win32_read_file_func; | |
383 | pzlib_filefunc_def->zwrite_file = win32_write_file_func; | |
384 | pzlib_filefunc_def->ztell64_file = win32_tell64_file_func; | |
385 | pzlib_filefunc_def->zseek64_file = win32_seek64_file_func; | |
386 | pzlib_filefunc_def->zclose_file = win32_close_file_func; | |
387 | pzlib_filefunc_def->zerror_file = win32_error_file_func; | |
388 | pzlib_filefunc_def->opaque = NULL; | |
389 | } |