Commit | Line | Data |
216db7ee |
1 | /* vdir.h |
2 | * |
3 | * (c) 1999 Microsoft Corporation. All rights reserved. |
4 | * Portions (c) 1999 ActiveState Tool Corp, http://www.ActiveState.com/ |
5 | * |
6 | * You may distribute under the terms of either the GNU General Public |
7 | * License or the Artistic License, as specified in the README file. |
8 | */ |
9 | |
10 | #ifndef ___VDir_H___ |
11 | #define ___VDir_H___ |
12 | |
13 | /* |
14 | * Allow one slot for each possible drive letter |
15 | * and one additional slot for a UNC name |
16 | */ |
17 | const int driveCount = ('Z'-'A')+1+1; |
18 | |
19 | class VDir |
20 | { |
21 | public: |
22 | VDir(int bManageDir = 1); |
23 | ~VDir() {}; |
24 | |
25 | void Init(VDir* pDir, VMem *pMem); |
26 | void SetDefaultA(char const *pDefault); |
27 | void SetDefaultW(WCHAR const *pDefault); |
28 | char* MapPathA(const char *pInName); |
29 | WCHAR* MapPathW(const WCHAR *pInName); |
30 | int SetCurrentDirectoryA(char *lpBuffer); |
31 | int SetCurrentDirectoryW(WCHAR *lpBuffer); |
32 | inline int GetDefault(void) { return nDefault; }; |
33 | |
34 | inline char* GetCurrentDirectoryA(int dwBufSize, char *lpBuffer) |
35 | { |
36 | char* ptr = dirTableA[nDefault]; |
37 | while (dwBufSize--) |
38 | { |
39 | if ((*lpBuffer++ = *ptr++) == '\0') |
40 | break; |
41 | } |
42 | return lpBuffer; |
43 | }; |
44 | inline WCHAR* GetCurrentDirectoryW(int dwBufSize, WCHAR *lpBuffer) |
45 | { |
46 | WCHAR* ptr = dirTableW[nDefault]; |
47 | while (dwBufSize--) |
48 | { |
49 | if ((*lpBuffer++ = *ptr++) == '\0') |
50 | break; |
51 | } |
52 | return lpBuffer; |
53 | }; |
54 | |
55 | |
56 | DWORD CalculateEnvironmentSpace(void); |
57 | LPSTR BuildEnvironmentSpace(LPSTR lpStr); |
58 | |
59 | protected: |
60 | int SetDirA(char const *pPath, int index); |
61 | void FromEnvA(char *pEnv, int index); |
62 | inline const char *GetDefaultDirA(void) |
63 | { |
64 | return dirTableA[nDefault]; |
65 | }; |
66 | |
67 | inline void SetDefaultDirA(char const *pPath, int index) |
68 | { |
69 | SetDirA(pPath, index); |
70 | nDefault = index; |
71 | }; |
72 | int SetDirW(WCHAR const *pPath, int index); |
73 | inline const WCHAR *GetDefaultDirW(void) |
74 | { |
75 | return dirTableW[nDefault]; |
76 | }; |
77 | |
78 | inline void SetDefaultDirW(WCHAR const *pPath, int index) |
79 | { |
80 | SetDirW(pPath, index); |
81 | nDefault = index; |
82 | }; |
83 | inline const char *GetDirA(int index) |
84 | { |
85 | char *ptr = dirTableA[index]; |
86 | if (!ptr) { |
87 | /* simulate the existance of this drive */ |
88 | ptr = szLocalBufferA; |
89 | ptr[0] = 'A' + index; |
90 | ptr[1] = ':'; |
91 | ptr[2] = '\\'; |
92 | ptr[3] = 0; |
93 | } |
94 | return ptr; |
95 | }; |
96 | inline const WCHAR *GetDirW(int index) |
97 | { |
98 | WCHAR *ptr = dirTableW[index]; |
99 | if (!ptr) { |
100 | /* simulate the existance of this drive */ |
101 | ptr = szLocalBufferW; |
102 | ptr[0] = 'A' + index; |
103 | ptr[1] = ':'; |
104 | ptr[2] = '\\'; |
105 | ptr[3] = 0; |
106 | } |
107 | return ptr; |
108 | }; |
109 | |
110 | inline int DriveIndex(char chr) |
111 | { |
112 | if (chr == '\\' || chr == '/') |
113 | return ('Z'-'A')+1; |
114 | return (chr | 0x20)-'a'; |
115 | }; |
116 | |
117 | VMem *pMem; |
118 | int nDefault, bManageDirectory; |
119 | char *dirTableA[driveCount]; |
120 | char szLocalBufferA[MAX_PATH+1]; |
121 | WCHAR *dirTableW[driveCount]; |
122 | WCHAR szLocalBufferW[MAX_PATH+1]; |
123 | }; |
124 | |
125 | |
126 | VDir::VDir(int bManageDir /* = 1 */) |
127 | { |
128 | nDefault = 0; |
129 | bManageDirectory = bManageDir; |
130 | memset(dirTableA, 0, sizeof(dirTableA)); |
131 | memset(dirTableW, 0, sizeof(dirTableW)); |
132 | } |
133 | |
134 | void VDir::Init(VDir* pDir, VMem *p) |
135 | { |
136 | int index; |
137 | DWORD driveBits; |
138 | int nSave; |
139 | char szBuffer[MAX_PATH*driveCount]; |
140 | |
141 | pMem = p; |
142 | if (pDir) { |
143 | for (index = 0; index < driveCount; ++index) { |
144 | SetDirW(pDir->GetDirW(index), index); |
145 | } |
146 | nDefault = pDir->GetDefault(); |
147 | } |
148 | else { |
149 | nSave = bManageDirectory; |
150 | bManageDirectory = 0; |
151 | driveBits = GetLogicalDrives(); |
152 | if (GetLogicalDriveStrings(sizeof(szBuffer), szBuffer)) { |
153 | char* pEnv = (char*)GetEnvironmentStrings(); |
154 | char* ptr = szBuffer; |
155 | for (index = 0; index < driveCount; ++index) { |
156 | if (driveBits & (1<<index)) { |
157 | ptr += SetDirA(ptr, index) + 1; |
158 | FromEnvA(pEnv, index); |
159 | } |
160 | } |
161 | FreeEnvironmentStrings(pEnv); |
162 | } |
163 | SetDefaultA("."); |
164 | bManageDirectory = nSave; |
165 | } |
166 | } |
167 | |
168 | int VDir::SetDirA(char const *pPath, int index) |
169 | { |
170 | char chr, *ptr; |
171 | int length = 0; |
172 | WCHAR wBuffer[MAX_PATH+1]; |
173 | if (index < driveCount && pPath != NULL) { |
174 | length = strlen(pPath); |
175 | pMem->Free(dirTableA[index]); |
176 | ptr = dirTableA[index] = (char*)pMem->Malloc(length+2); |
177 | if (ptr != NULL) { |
178 | strcpy(ptr, pPath); |
179 | ptr += length-1; |
180 | chr = *ptr++; |
181 | if (chr != '\\' && chr != '/') { |
182 | *ptr++ = '\\'; |
183 | *ptr = '\0'; |
184 | } |
185 | MultiByteToWideChar(CP_ACP, 0, dirTableA[index], -1, |
186 | wBuffer, (sizeof(wBuffer)/sizeof(WCHAR))); |
187 | length = wcslen(wBuffer); |
188 | pMem->Free(dirTableW[index]); |
189 | dirTableW[index] = (WCHAR*)pMem->Malloc((length+1)*2); |
190 | if (dirTableW[index] != NULL) { |
191 | wcscpy(dirTableW[index], wBuffer); |
192 | } |
193 | } |
194 | } |
195 | |
196 | if(bManageDirectory) |
197 | ::SetCurrentDirectoryA(pPath); |
198 | |
199 | return length; |
200 | } |
201 | |
202 | void VDir::FromEnvA(char *pEnv, int index) |
203 | { /* gets the directory for index from the environment variable. */ |
204 | while (*pEnv != '\0') { |
205 | if ((pEnv[0] == '=') && (DriveIndex(pEnv[1]) == index)) { |
206 | SetDirA(&pEnv[4], index); |
207 | break; |
208 | } |
209 | else |
210 | pEnv += strlen(pEnv)+1; |
211 | } |
212 | } |
213 | |
214 | void VDir::SetDefaultA(char const *pDefault) |
215 | { |
216 | char szBuffer[MAX_PATH+1]; |
217 | char *pPtr; |
218 | |
219 | if (GetFullPathNameA(pDefault, sizeof(szBuffer), szBuffer, &pPtr)) { |
220 | if (*pDefault != '.' && pPtr != NULL) |
221 | *pPtr = '\0'; |
222 | |
223 | SetDefaultDirA(szBuffer, DriveIndex(szBuffer[0])); |
224 | } |
225 | } |
226 | |
227 | int VDir::SetDirW(WCHAR const *pPath, int index) |
228 | { |
229 | WCHAR chr, *ptr; |
230 | char szBuffer[MAX_PATH+1]; |
231 | int length = 0; |
232 | if (index < driveCount && pPath != NULL) { |
233 | length = wcslen(pPath); |
234 | pMem->Free(dirTableW[index]); |
235 | ptr = dirTableW[index] = (WCHAR*)pMem->Malloc((length+2)*2); |
236 | if (ptr != NULL) { |
237 | wcscpy(ptr, pPath); |
238 | ptr += length-1; |
239 | chr = *ptr++; |
240 | if (chr != '\\' && chr != '/') { |
241 | *ptr++ = '\\'; |
242 | *ptr = '\0'; |
243 | } |
244 | WideCharToMultiByte(CP_ACP, 0, dirTableW[index], -1, szBuffer, sizeof(szBuffer), NULL, NULL); |
245 | length = strlen(szBuffer); |
246 | pMem->Free(dirTableA[index]); |
247 | dirTableA[index] = (char*)pMem->Malloc(length+1); |
248 | if (dirTableA[index] != NULL) { |
249 | strcpy(dirTableA[index], szBuffer); |
250 | } |
251 | } |
252 | } |
253 | |
254 | if(bManageDirectory) |
255 | ::SetCurrentDirectoryW(pPath); |
256 | |
257 | return length; |
258 | } |
259 | |
260 | void VDir::SetDefaultW(WCHAR const *pDefault) |
261 | { |
262 | WCHAR szBuffer[MAX_PATH+1]; |
263 | WCHAR *pPtr; |
264 | |
265 | if (GetFullPathNameW(pDefault, (sizeof(szBuffer)/sizeof(WCHAR)), szBuffer, &pPtr)) { |
266 | if (*pDefault != '.' && pPtr != NULL) |
267 | *pPtr = '\0'; |
268 | |
269 | SetDefaultDirW(szBuffer, DriveIndex((char)szBuffer[0])); |
270 | } |
271 | } |
272 | |
273 | inline BOOL IsPathSep(char ch) |
274 | { |
275 | return (ch == '\\' || ch == '/'); |
276 | } |
277 | |
278 | inline void DoGetFullPathNameA(char* lpBuffer, DWORD dwSize, char* Dest) |
279 | { |
280 | char *pPtr; |
281 | |
282 | /* |
283 | * On WinNT GetFullPathName does not fail, (or at least always |
284 | * succeeds when the drive is valid) WinNT does set *Dest to Nullch |
285 | * On Win98 GetFullPathName will set last error if it fails, but |
286 | * does not touch *Dest |
287 | */ |
288 | *Dest = '\0'; |
289 | GetFullPathNameA(lpBuffer, dwSize, Dest, &pPtr); |
290 | } |
291 | |
292 | inline bool IsSpecialFileName(const char* pName) |
293 | { |
294 | /* specical file names are devices that the system can open |
295 | * these include AUX, CON, NUL, PRN, COMx, LPTx, CLOCK$, CONIN$, CONOUT$ |
296 | * (x is a single digit, and names are case-insensitive) |
297 | */ |
298 | char ch = (pName[0] & ~0x20); |
299 | switch (ch) |
300 | { |
301 | case 'A': /* AUX */ |
302 | if (((pName[1] & ~0x20) == 'U') |
303 | && ((pName[2] & ~0x20) == 'X') |
304 | && !pName[3]) |
305 | return true; |
306 | break; |
307 | case 'C': /* CLOCK$, COMx, CON, CONIN$ CONOUT$ */ |
308 | ch = (pName[1] & ~0x20); |
309 | switch (ch) |
310 | { |
311 | case 'L': /* CLOCK$ */ |
312 | if (((pName[2] & ~0x20) == 'O') |
313 | && ((pName[3] & ~0x20) == 'C') |
314 | && ((pName[4] & ~0x20) == 'K') |
315 | && (pName[5] == '$') |
316 | && !pName[6]) |
317 | return true; |
318 | break; |
319 | case 'O': /* COMx, CON, CONIN$ CONOUT$ */ |
320 | if ((pName[2] & ~0x20) == 'M') { |
321 | if ((pName[3] >= '1') && (pName[3] <= '9') |
322 | && !pName[4]) |
323 | return true; |
324 | } |
325 | else if ((pName[2] & ~0x20) == 'N') { |
326 | if (!pName[3]) |
327 | return true; |
328 | else if ((pName[3] & ~0x20) == 'I') { |
329 | if (((pName[4] & ~0x20) == 'N') |
330 | && (pName[5] == '$') |
331 | && !pName[6]) |
332 | return true; |
333 | } |
334 | else if ((pName[3] & ~0x20) == 'O') { |
335 | if (((pName[4] & ~0x20) == 'U') |
336 | && ((pName[5] & ~0x20) == 'T') |
337 | && (pName[6] == '$') |
338 | && !pName[7]) |
339 | return true; |
340 | } |
341 | } |
342 | break; |
343 | } |
344 | break; |
345 | case 'L': /* LPTx */ |
346 | if (((pName[1] & ~0x20) == 'U') |
347 | && ((pName[2] & ~0x20) == 'X') |
348 | && (pName[3] >= '1') && (pName[3] <= '9') |
349 | && !pName[4]) |
350 | return true; |
351 | break; |
352 | case 'N': /* NUL */ |
353 | if (((pName[1] & ~0x20) == 'U') |
354 | && ((pName[2] & ~0x20) == 'L') |
355 | && !pName[3]) |
356 | return true; |
357 | break; |
358 | case 'P': /* PRN */ |
359 | if (((pName[1] & ~0x20) == 'R') |
360 | && ((pName[2] & ~0x20) == 'N') |
361 | && !pName[3]) |
362 | return true; |
363 | break; |
364 | } |
365 | return false; |
366 | } |
367 | |
368 | char *VDir::MapPathA(const char *pInName) |
369 | { /* |
370 | * possiblities -- relative path or absolute path with or without drive letter |
371 | * OR UNC name |
372 | */ |
373 | char szBuffer[(MAX_PATH+1)*2]; |
374 | char szlBuf[MAX_PATH+1]; |
375 | int length = strlen(pInName); |
376 | |
377 | if (!length) |
378 | return (char*)pInName; |
379 | |
380 | if (length > MAX_PATH) { |
381 | strncpy(szlBuf, pInName, MAX_PATH); |
382 | if (IsPathSep(pInName[0]) && !IsPathSep(pInName[1])) { |
383 | /* absolute path - reduce length by 2 for drive specifier */ |
384 | szlBuf[MAX_PATH-2] = '\0'; |
385 | } |
386 | else |
387 | szlBuf[MAX_PATH] = '\0'; |
388 | pInName = szlBuf; |
389 | } |
390 | /* strlen(pInName) is now <= MAX_PATH */ |
391 | |
392 | if (pInName[1] == ':') { |
393 | /* has drive letter */ |
394 | if (IsPathSep(pInName[2])) { |
395 | /* absolute with drive letter */ |
396 | DoGetFullPathNameA((char*)pInName, sizeof(szLocalBufferA), szLocalBufferA); |
397 | } |
398 | else { |
399 | /* relative path with drive letter */ |
400 | strcpy(szBuffer, GetDirA(DriveIndex(*pInName))); |
401 | strcat(szBuffer, &pInName[2]); |
402 | if(strlen(szBuffer) > MAX_PATH) |
403 | szBuffer[MAX_PATH] = '\0'; |
404 | |
405 | DoGetFullPathNameA(szBuffer, sizeof(szLocalBufferA), szLocalBufferA); |
406 | } |
407 | } |
408 | else { |
409 | /* no drive letter */ |
410 | if (IsPathSep(pInName[1]) && IsPathSep(pInName[0])) { |
411 | /* UNC name */ |
412 | DoGetFullPathNameA((char*)pInName, sizeof(szLocalBufferA), szLocalBufferA); |
413 | } |
414 | else { |
415 | strcpy(szBuffer, GetDefaultDirA()); |
416 | if (IsPathSep(pInName[0])) { |
417 | /* absolute path */ |
418 | strcpy(&szBuffer[2], pInName); |
419 | DoGetFullPathNameA(szBuffer, sizeof(szLocalBufferA), szLocalBufferA); |
420 | } |
421 | else { |
422 | /* relative path */ |
423 | if (IsSpecialFileName(pInName)) { |
424 | return (char*)pInName; |
425 | } |
426 | else { |
427 | strcat(szBuffer, pInName); |
428 | if (strlen(szBuffer) > MAX_PATH) |
429 | szBuffer[MAX_PATH] = '\0'; |
430 | |
431 | DoGetFullPathNameA(szBuffer, sizeof(szLocalBufferA), szLocalBufferA); |
432 | } |
433 | } |
434 | } |
435 | } |
436 | |
437 | return szLocalBufferA; |
438 | } |
439 | |
440 | int VDir::SetCurrentDirectoryA(char *lpBuffer) |
441 | { |
442 | char *pPtr; |
443 | int length, nRet = -1; |
444 | |
445 | pPtr = MapPathA(lpBuffer); |
446 | length = strlen(pPtr); |
447 | if(length > 3 && IsPathSep(pPtr[length-1])) { |
448 | /* don't remove the trailing slash from 'x:\' */ |
449 | pPtr[length-1] = '\0'; |
450 | } |
451 | |
452 | DWORD r = GetFileAttributesA(pPtr); |
453 | if ((r != 0xffffffff) && (r & FILE_ATTRIBUTE_DIRECTORY)) |
454 | { |
455 | char szBuffer[(MAX_PATH+1)*2]; |
456 | DoGetFullPathNameA(pPtr, sizeof(szBuffer), szBuffer); |
457 | SetDefaultDirA(szBuffer, DriveIndex(szBuffer[0])); |
458 | nRet = 0; |
459 | } |
460 | |
461 | return nRet; |
462 | } |
463 | |
464 | DWORD VDir::CalculateEnvironmentSpace(void) |
465 | { /* the current directory environment strings are stored as '=D:=d:\path' */ |
466 | int index; |
467 | DWORD dwSize = 0; |
468 | for (index = 0; index < driveCount; ++index) { |
469 | if (dirTableA[index] != NULL) { |
470 | dwSize += strlen(dirTableA[index]) + 5; /* add 1 for trailing NULL and 4 for '=D:=' */ |
471 | } |
472 | } |
473 | return dwSize; |
474 | } |
475 | |
476 | LPSTR VDir::BuildEnvironmentSpace(LPSTR lpStr) |
477 | { /* store the current directory environment strings as '=D:=d:\path' */ |
478 | int index, length; |
479 | LPSTR lpDirStr; |
480 | for (index = 0; index < driveCount; ++index) { |
481 | lpDirStr = dirTableA[index]; |
482 | if (lpDirStr != NULL) { |
483 | lpStr[0] = '='; |
484 | lpStr[1] = lpDirStr[0]; |
485 | lpStr[2] = '\0'; |
486 | CharUpper(&lpStr[1]); |
487 | lpStr[2] = ':'; |
488 | lpStr[3] = '='; |
489 | strcpy(&lpStr[4], lpDirStr); |
490 | length = strlen(lpDirStr); |
491 | lpStr += length + 5; /* add 1 for trailing NULL and 4 for '=D:=' */ |
492 | if (length > 3 && IsPathSep(lpStr[-2])) { |
493 | lpStr[-2] = '\0'; /* remove the trailing path separator */ |
494 | --lpStr; |
495 | } |
496 | } |
497 | } |
498 | return lpStr; |
499 | } |
500 | |
501 | inline BOOL IsPathSep(WCHAR ch) |
502 | { |
503 | return (ch == '\\' || ch == '/'); |
504 | } |
505 | |
506 | inline void DoGetFullPathNameW(WCHAR* lpBuffer, DWORD dwSize, WCHAR* Dest) |
507 | { |
508 | WCHAR *pPtr; |
509 | |
510 | /* |
511 | * On WinNT GetFullPathName does not fail, (or at least always |
512 | * succeeds when the drive is valid) WinNT does set *Dest to Nullch |
513 | * On Win98 GetFullPathName will set last error if it fails, but |
514 | * does not touch *Dest |
515 | */ |
516 | *Dest = '\0'; |
517 | GetFullPathNameW(lpBuffer, dwSize, Dest, &pPtr); |
518 | } |
519 | |
520 | inline bool IsSpecialFileName(const WCHAR* pName) |
521 | { |
522 | /* specical file names are devices that the system can open |
523 | * these include AUX, CON, NUL, PRN, COMx, LPTx, CLOCK$, CONIN$, CONOUT$ |
524 | * (x is a single digit, and names are case-insensitive) |
525 | */ |
526 | WCHAR ch = (pName[0] & ~0x20); |
527 | switch (ch) |
528 | { |
529 | case 'A': /* AUX */ |
530 | if (((pName[1] & ~0x20) == 'U') |
531 | && ((pName[2] & ~0x20) == 'X') |
532 | && !pName[3]) |
533 | return true; |
534 | break; |
535 | case 'C': /* CLOCK$, COMx, CON, CONIN$ CONOUT$ */ |
536 | ch = (pName[1] & ~0x20); |
537 | switch (ch) |
538 | { |
539 | case 'L': /* CLOCK$ */ |
540 | if (((pName[2] & ~0x20) == 'O') |
541 | && ((pName[3] & ~0x20) == 'C') |
542 | && ((pName[4] & ~0x20) == 'K') |
543 | && (pName[5] == '$') |
544 | && !pName[6]) |
545 | return true; |
546 | break; |
547 | case 'O': /* COMx, CON, CONIN$ CONOUT$ */ |
548 | if ((pName[2] & ~0x20) == 'M') { |
549 | if ((pName[3] >= '1') && (pName[3] <= '9') |
550 | && !pName[4]) |
551 | return true; |
552 | } |
553 | else if ((pName[2] & ~0x20) == 'N') { |
554 | if (!pName[3]) |
555 | return true; |
556 | else if ((pName[3] & ~0x20) == 'I') { |
557 | if (((pName[4] & ~0x20) == 'N') |
558 | && (pName[5] == '$') |
559 | && !pName[6]) |
560 | return true; |
561 | } |
562 | else if ((pName[3] & ~0x20) == 'O') { |
563 | if (((pName[4] & ~0x20) == 'U') |
564 | && ((pName[5] & ~0x20) == 'T') |
565 | && (pName[6] == '$') |
566 | && !pName[7]) |
567 | return true; |
568 | } |
569 | } |
570 | break; |
571 | } |
572 | break; |
573 | case 'L': /* LPTx */ |
574 | if (((pName[1] & ~0x20) == 'U') |
575 | && ((pName[2] & ~0x20) == 'X') |
576 | && (pName[3] >= '1') && (pName[3] <= '9') |
577 | && !pName[4]) |
578 | return true; |
579 | break; |
580 | case 'N': /* NUL */ |
581 | if (((pName[1] & ~0x20) == 'U') |
582 | && ((pName[2] & ~0x20) == 'L') |
583 | && !pName[3]) |
584 | return true; |
585 | break; |
586 | case 'P': /* PRN */ |
587 | if (((pName[1] & ~0x20) == 'R') |
588 | && ((pName[2] & ~0x20) == 'N') |
589 | && !pName[3]) |
590 | return true; |
591 | break; |
592 | } |
593 | return false; |
594 | } |
595 | |
596 | WCHAR* VDir::MapPathW(const WCHAR *pInName) |
597 | { /* |
598 | * possiblities -- relative path or absolute path with or without drive letter |
599 | * OR UNC name |
600 | */ |
601 | WCHAR szBuffer[(MAX_PATH+1)*2]; |
602 | WCHAR szlBuf[MAX_PATH+1]; |
603 | int length = wcslen(pInName); |
604 | |
605 | if (!length) |
606 | return (WCHAR*)pInName; |
607 | |
608 | if (length > MAX_PATH) { |
609 | wcsncpy(szlBuf, pInName, MAX_PATH); |
610 | if (IsPathSep(pInName[0]) && !IsPathSep(pInName[1])) { |
611 | /* absolute path - reduce length by 2 for drive specifier */ |
612 | szlBuf[MAX_PATH-2] = '\0'; |
613 | } |
614 | else |
615 | szlBuf[MAX_PATH] = '\0'; |
616 | pInName = szlBuf; |
617 | } |
618 | /* strlen(pInName) is now <= MAX_PATH */ |
619 | |
620 | if (pInName[1] == ':') { |
621 | /* has drive letter */ |
622 | if (IsPathSep(pInName[2])) { |
623 | /* absolute with drive letter */ |
624 | DoGetFullPathNameW((WCHAR*)pInName, (sizeof(szLocalBufferW)/sizeof(WCHAR)), szLocalBufferW); |
625 | } |
626 | else { |
627 | /* relative path with drive letter */ |
628 | wcscpy(szBuffer, GetDirW(DriveIndex((char)*pInName))); |
629 | wcscat(szBuffer, &pInName[2]); |
630 | if(wcslen(szBuffer) > MAX_PATH) |
631 | szBuffer[MAX_PATH] = '\0'; |
632 | |
633 | DoGetFullPathNameW(szBuffer, (sizeof(szLocalBufferW)/sizeof(WCHAR)), szLocalBufferW); |
634 | } |
635 | } |
636 | else { |
637 | /* no drive letter */ |
638 | if (IsPathSep(pInName[1]) && IsPathSep(pInName[0])) { |
639 | /* UNC name */ |
640 | DoGetFullPathNameW((WCHAR*)pInName, (sizeof(szLocalBufferW)/sizeof(WCHAR)), szLocalBufferW); |
641 | } |
642 | else { |
643 | wcscpy(szBuffer, GetDefaultDirW()); |
644 | if (IsPathSep(pInName[0])) { |
645 | /* absolute path */ |
646 | wcscpy(&szBuffer[2], pInName); |
647 | DoGetFullPathNameW(szBuffer, (sizeof(szLocalBufferW)/sizeof(WCHAR)), szLocalBufferW); |
648 | } |
649 | else { |
650 | /* relative path */ |
651 | if (IsSpecialFileName(pInName)) { |
652 | return (WCHAR*)pInName; |
653 | } |
654 | else { |
655 | wcscat(szBuffer, pInName); |
656 | if (wcslen(szBuffer) > MAX_PATH) |
657 | szBuffer[MAX_PATH] = '\0'; |
658 | |
659 | DoGetFullPathNameW(szBuffer, (sizeof(szLocalBufferW)/sizeof(WCHAR)), szLocalBufferW); |
660 | } |
661 | } |
662 | } |
663 | } |
664 | return szLocalBufferW; |
665 | } |
666 | |
667 | int VDir::SetCurrentDirectoryW(WCHAR *lpBuffer) |
668 | { |
669 | WCHAR *pPtr; |
670 | int length, nRet = -1; |
671 | |
672 | pPtr = MapPathW(lpBuffer); |
673 | length = wcslen(pPtr); |
674 | if(length > 3 && IsPathSep(pPtr[length-1])) { |
675 | /* don't remove the trailing slash from 'x:\' */ |
676 | pPtr[length-1] = '\0'; |
677 | } |
678 | |
679 | DWORD r = GetFileAttributesW(pPtr); |
680 | if ((r != 0xffffffff) && (r & FILE_ATTRIBUTE_DIRECTORY)) |
681 | { |
682 | WCHAR wBuffer[(MAX_PATH+1)*2]; |
683 | DoGetFullPathNameW(pPtr, (sizeof(wBuffer)/sizeof(WCHAR)), wBuffer); |
684 | SetDefaultDirW(wBuffer, DriveIndex((char)wBuffer[0])); |
685 | nRet = 0; |
686 | } |
687 | |
688 | return nRet; |
689 | } |
690 | |
691 | #endif /* ___VDir_H___ */ |