Commit | Line | Data |
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7766f137 GS |
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 | ||
93153446 GS |
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; | |
52236464 | 18 | const int driveLetterCount = ('Z'-'A')+1; |
7766f137 GS |
19 | |
20 | class VDir | |
21 | { | |
22 | public: | |
f7aeb604 | 23 | VDir(int bManageDir = 1); |
7766f137 GS |
24 | ~VDir() {}; |
25 | ||
26 | void Init(VDir* pDir, VMem *pMem); | |
27 | void SetDefaultA(char const *pDefault); | |
28 | void SetDefaultW(WCHAR const *pDefault); | |
29 | char* MapPathA(const char *pInName); | |
30 | WCHAR* MapPathW(const WCHAR *pInName); | |
31 | int SetCurrentDirectoryA(char *lpBuffer); | |
32 | int SetCurrentDirectoryW(WCHAR *lpBuffer); | |
7766f137 GS |
33 | inline int GetDefault(void) { return nDefault; }; |
34 | ||
35 | inline char* GetCurrentDirectoryA(int dwBufSize, char *lpBuffer) | |
36 | { | |
37 | char* ptr = dirTableA[nDefault]; | |
d684b162 | 38 | while (--dwBufSize) |
7766f137 GS |
39 | { |
40 | if ((*lpBuffer++ = *ptr++) == '\0') | |
41 | break; | |
42 | } | |
d684b162 JD |
43 | *lpBuffer = '\0'; |
44 | return /* unused */ NULL; | |
7766f137 GS |
45 | }; |
46 | inline WCHAR* GetCurrentDirectoryW(int dwBufSize, WCHAR *lpBuffer) | |
47 | { | |
48 | WCHAR* ptr = dirTableW[nDefault]; | |
d684b162 | 49 | while (--dwBufSize) |
7766f137 GS |
50 | { |
51 | if ((*lpBuffer++ = *ptr++) == '\0') | |
52 | break; | |
53 | } | |
d684b162 JD |
54 | *lpBuffer = '\0'; |
55 | return /* unused */ NULL; | |
7766f137 GS |
56 | }; |
57 | ||
7766f137 GS |
58 | DWORD CalculateEnvironmentSpace(void); |
59 | LPSTR BuildEnvironmentSpace(LPSTR lpStr); | |
60 | ||
61 | protected: | |
62 | int SetDirA(char const *pPath, int index); | |
d684b162 | 63 | int SetDirW(WCHAR const *pPath, int index); |
7766f137 | 64 | void FromEnvA(char *pEnv, int index); |
d684b162 JD |
65 | void FromEnvW(WCHAR *pEnv, int index); |
66 | ||
7766f137 GS |
67 | inline const char *GetDefaultDirA(void) |
68 | { | |
69 | return dirTableA[nDefault]; | |
70 | }; | |
7766f137 GS |
71 | inline void SetDefaultDirA(char const *pPath, int index) |
72 | { | |
73 | SetDirA(pPath, index); | |
74 | nDefault = index; | |
75 | }; | |
7766f137 GS |
76 | inline const WCHAR *GetDefaultDirW(void) |
77 | { | |
78 | return dirTableW[nDefault]; | |
79 | }; | |
7766f137 GS |
80 | inline void SetDefaultDirW(WCHAR const *pPath, int index) |
81 | { | |
82 | SetDirW(pPath, index); | |
83 | nDefault = index; | |
84 | }; | |
e2694c95 GS |
85 | inline const char *GetDirA(int index) |
86 | { | |
87 | char *ptr = dirTableA[index]; | |
88 | if (!ptr) { | |
bb0f0a6a | 89 | /* simulate the existence of this drive */ |
e2694c95 GS |
90 | ptr = szLocalBufferA; |
91 | ptr[0] = 'A' + index; | |
92 | ptr[1] = ':'; | |
93 | ptr[2] = '\\'; | |
94 | ptr[3] = 0; | |
95 | } | |
96 | return ptr; | |
97 | }; | |
98 | inline const WCHAR *GetDirW(int index) | |
99 | { | |
100 | WCHAR *ptr = dirTableW[index]; | |
101 | if (!ptr) { | |
bb0f0a6a | 102 | /* simulate the existence of this drive */ |
e2694c95 GS |
103 | ptr = szLocalBufferW; |
104 | ptr[0] = 'A' + index; | |
105 | ptr[1] = ':'; | |
106 | ptr[2] = '\\'; | |
107 | ptr[3] = 0; | |
108 | } | |
109 | return ptr; | |
110 | }; | |
7766f137 GS |
111 | |
112 | inline int DriveIndex(char chr) | |
113 | { | |
93153446 GS |
114 | if (chr == '\\' || chr == '/') |
115 | return ('Z'-'A')+1; | |
7766f137 GS |
116 | return (chr | 0x20)-'a'; |
117 | }; | |
118 | ||
119 | VMem *pMem; | |
f7aeb604 | 120 | int nDefault, bManageDirectory; |
7766f137 GS |
121 | char *dirTableA[driveCount]; |
122 | char szLocalBufferA[MAX_PATH+1]; | |
123 | WCHAR *dirTableW[driveCount]; | |
124 | WCHAR szLocalBufferW[MAX_PATH+1]; | |
125 | }; | |
126 | ||
127 | ||
f7aeb604 | 128 | VDir::VDir(int bManageDir /* = 1 */) |
7766f137 GS |
129 | { |
130 | nDefault = 0; | |
f7aeb604 | 131 | bManageDirectory = bManageDir; |
7766f137 GS |
132 | memset(dirTableA, 0, sizeof(dirTableA)); |
133 | memset(dirTableW, 0, sizeof(dirTableW)); | |
134 | } | |
135 | ||
136 | void VDir::Init(VDir* pDir, VMem *p) | |
137 | { | |
138 | int index; | |
7766f137 GS |
139 | |
140 | pMem = p; | |
141 | if (pDir) { | |
142 | for (index = 0; index < driveCount; ++index) { | |
143 | SetDirW(pDir->GetDirW(index), index); | |
144 | } | |
145 | nDefault = pDir->GetDefault(); | |
146 | } | |
147 | else { | |
d684b162 JD |
148 | int bSave = bManageDirectory; |
149 | DWORD driveBits = GetLogicalDrives(); | |
d684b162 | 150 | |
f7aeb604 | 151 | bManageDirectory = 0; |
0e7b7035 SH |
152 | WCHAR szBuffer[MAX_PATH*driveCount]; |
153 | if (GetLogicalDriveStringsW(sizeof(szBuffer), szBuffer)) { | |
154 | WCHAR* pEnv = GetEnvironmentStringsW(); | |
155 | WCHAR* ptr = szBuffer; | |
156 | for (index = 0; index < driveCount; ++index) { | |
157 | if (driveBits & (1<<index)) { | |
158 | ptr += SetDirW(ptr, index) + 1; | |
159 | FromEnvW(pEnv, index); | |
d684b162 | 160 | } |
d684b162 | 161 | } |
0e7b7035 | 162 | FreeEnvironmentStringsW(pEnv); |
d684b162 | 163 | } |
0e7b7035 | 164 | SetDefaultW(L"."); |
d684b162 JD |
165 | bManageDirectory = bSave; |
166 | } | |
7766f137 GS |
167 | } |
168 | ||
169 | int VDir::SetDirA(char const *pPath, int index) | |
170 | { | |
171 | char chr, *ptr; | |
172 | int length = 0; | |
173 | WCHAR wBuffer[MAX_PATH+1]; | |
174 | if (index < driveCount && pPath != NULL) { | |
175 | length = strlen(pPath); | |
176 | pMem->Free(dirTableA[index]); | |
177 | ptr = dirTableA[index] = (char*)pMem->Malloc(length+2); | |
178 | if (ptr != NULL) { | |
179 | strcpy(ptr, pPath); | |
180 | ptr += length-1; | |
181 | chr = *ptr++; | |
182 | if (chr != '\\' && chr != '/') { | |
183 | *ptr++ = '\\'; | |
184 | *ptr = '\0'; | |
185 | } | |
186 | MultiByteToWideChar(CP_ACP, 0, dirTableA[index], -1, | |
187 | wBuffer, (sizeof(wBuffer)/sizeof(WCHAR))); | |
188 | length = wcslen(wBuffer); | |
189 | pMem->Free(dirTableW[index]); | |
190 | dirTableW[index] = (WCHAR*)pMem->Malloc((length+1)*2); | |
191 | if (dirTableW[index] != NULL) { | |
192 | wcscpy(dirTableW[index], wBuffer); | |
193 | } | |
194 | } | |
195 | } | |
f7aeb604 GS |
196 | |
197 | if(bManageDirectory) | |
198 | ::SetCurrentDirectoryA(pPath); | |
199 | ||
7766f137 GS |
200 | return length; |
201 | } | |
202 | ||
203 | void VDir::FromEnvA(char *pEnv, int index) | |
204 | { /* gets the directory for index from the environment variable. */ | |
205 | while (*pEnv != '\0') { | |
d2bccf1b TC |
206 | if ((pEnv[0] == '=') && (DriveIndex(pEnv[1]) == index) |
207 | && pEnv[2] == ':' && pEnv[3] == '=') { | |
7766f137 GS |
208 | SetDirA(&pEnv[4], index); |
209 | break; | |
210 | } | |
211 | else | |
212 | pEnv += strlen(pEnv)+1; | |
213 | } | |
214 | } | |
215 | ||
d684b162 JD |
216 | void VDir::FromEnvW(WCHAR *pEnv, int index) |
217 | { /* gets the directory for index from the environment variable. */ | |
218 | while (*pEnv != '\0') { | |
d2bccf1b TC |
219 | if ((pEnv[0] == '=') && (DriveIndex((char)pEnv[1]) == index) |
220 | && pEnv[2] == ':' && pEnv[3] == '=') { | |
d684b162 JD |
221 | SetDirW(&pEnv[4], index); |
222 | break; | |
223 | } | |
224 | else | |
225 | pEnv += wcslen(pEnv)+1; | |
226 | } | |
227 | } | |
228 | ||
7766f137 GS |
229 | void VDir::SetDefaultA(char const *pDefault) |
230 | { | |
231 | char szBuffer[MAX_PATH+1]; | |
232 | char *pPtr; | |
233 | ||
234 | if (GetFullPathNameA(pDefault, sizeof(szBuffer), szBuffer, &pPtr)) { | |
235 | if (*pDefault != '.' && pPtr != NULL) | |
236 | *pPtr = '\0'; | |
237 | ||
238 | SetDefaultDirA(szBuffer, DriveIndex(szBuffer[0])); | |
239 | } | |
240 | } | |
241 | ||
242 | int VDir::SetDirW(WCHAR const *pPath, int index) | |
243 | { | |
244 | WCHAR chr, *ptr; | |
7766f137 GS |
245 | int length = 0; |
246 | if (index < driveCount && pPath != NULL) { | |
247 | length = wcslen(pPath); | |
248 | pMem->Free(dirTableW[index]); | |
249 | ptr = dirTableW[index] = (WCHAR*)pMem->Malloc((length+2)*2); | |
250 | if (ptr != NULL) { | |
aa2b96ec | 251 | char *ansi; |
7766f137 GS |
252 | wcscpy(ptr, pPath); |
253 | ptr += length-1; | |
254 | chr = *ptr++; | |
255 | if (chr != '\\' && chr != '/') { | |
256 | *ptr++ = '\\'; | |
257 | *ptr = '\0'; | |
258 | } | |
aa2b96ec JD |
259 | ansi = win32_ansipath(dirTableW[index]); |
260 | length = strlen(ansi); | |
7766f137 GS |
261 | pMem->Free(dirTableA[index]); |
262 | dirTableA[index] = (char*)pMem->Malloc(length+1); | |
263 | if (dirTableA[index] != NULL) { | |
aa2b96ec | 264 | strcpy(dirTableA[index], ansi); |
7766f137 | 265 | } |
aa2b96ec | 266 | win32_free(ansi); |
7766f137 GS |
267 | } |
268 | } | |
f7aeb604 GS |
269 | |
270 | if(bManageDirectory) | |
271 | ::SetCurrentDirectoryW(pPath); | |
272 | ||
7766f137 GS |
273 | return length; |
274 | } | |
275 | ||
276 | void VDir::SetDefaultW(WCHAR const *pDefault) | |
277 | { | |
278 | WCHAR szBuffer[MAX_PATH+1]; | |
279 | WCHAR *pPtr; | |
280 | ||
281 | if (GetFullPathNameW(pDefault, (sizeof(szBuffer)/sizeof(WCHAR)), szBuffer, &pPtr)) { | |
282 | if (*pDefault != '.' && pPtr != NULL) | |
283 | *pPtr = '\0'; | |
284 | ||
285 | SetDefaultDirW(szBuffer, DriveIndex((char)szBuffer[0])); | |
286 | } | |
287 | } | |
288 | ||
289 | inline BOOL IsPathSep(char ch) | |
290 | { | |
291 | return (ch == '\\' || ch == '/'); | |
292 | } | |
293 | ||
294 | inline void DoGetFullPathNameA(char* lpBuffer, DWORD dwSize, char* Dest) | |
295 | { | |
296 | char *pPtr; | |
297 | ||
298 | /* | |
299 | * On WinNT GetFullPathName does not fail, (or at least always | |
9849c14c | 300 | * succeeds when the drive is valid) WinNT does set *Dest to NULL |
7766f137 GS |
301 | * On Win98 GetFullPathName will set last error if it fails, but |
302 | * does not touch *Dest | |
303 | */ | |
304 | *Dest = '\0'; | |
305 | GetFullPathNameA(lpBuffer, dwSize, Dest, &pPtr); | |
306 | } | |
307 | ||
e2694c95 GS |
308 | inline bool IsSpecialFileName(const char* pName) |
309 | { | |
310 | /* specical file names are devices that the system can open | |
311 | * these include AUX, CON, NUL, PRN, COMx, LPTx, CLOCK$, CONIN$, CONOUT$ | |
312 | * (x is a single digit, and names are case-insensitive) | |
313 | */ | |
314 | char ch = (pName[0] & ~0x20); | |
315 | switch (ch) | |
316 | { | |
317 | case 'A': /* AUX */ | |
318 | if (((pName[1] & ~0x20) == 'U') | |
319 | && ((pName[2] & ~0x20) == 'X') | |
320 | && !pName[3]) | |
321 | return true; | |
322 | break; | |
323 | case 'C': /* CLOCK$, COMx, CON, CONIN$ CONOUT$ */ | |
324 | ch = (pName[1] & ~0x20); | |
325 | switch (ch) | |
326 | { | |
327 | case 'L': /* CLOCK$ */ | |
328 | if (((pName[2] & ~0x20) == 'O') | |
329 | && ((pName[3] & ~0x20) == 'C') | |
330 | && ((pName[4] & ~0x20) == 'K') | |
331 | && (pName[5] == '$') | |
332 | && !pName[6]) | |
333 | return true; | |
334 | break; | |
335 | case 'O': /* COMx, CON, CONIN$ CONOUT$ */ | |
336 | if ((pName[2] & ~0x20) == 'M') { | |
9c353526 | 337 | if ( inRANGE(pName[3], '1', '9') |
e2694c95 GS |
338 | && !pName[4]) |
339 | return true; | |
340 | } | |
341 | else if ((pName[2] & ~0x20) == 'N') { | |
342 | if (!pName[3]) | |
343 | return true; | |
344 | else if ((pName[3] & ~0x20) == 'I') { | |
345 | if (((pName[4] & ~0x20) == 'N') | |
346 | && (pName[5] == '$') | |
347 | && !pName[6]) | |
348 | return true; | |
349 | } | |
350 | else if ((pName[3] & ~0x20) == 'O') { | |
351 | if (((pName[4] & ~0x20) == 'U') | |
352 | && ((pName[5] & ~0x20) == 'T') | |
353 | && (pName[6] == '$') | |
354 | && !pName[7]) | |
355 | return true; | |
356 | } | |
357 | } | |
358 | break; | |
359 | } | |
360 | break; | |
361 | case 'L': /* LPTx */ | |
362 | if (((pName[1] & ~0x20) == 'U') | |
363 | && ((pName[2] & ~0x20) == 'X') | |
9c353526 | 364 | && inRANGE(pName[3], '1', '9') |
e2694c95 GS |
365 | && !pName[4]) |
366 | return true; | |
367 | break; | |
368 | case 'N': /* NUL */ | |
369 | if (((pName[1] & ~0x20) == 'U') | |
370 | && ((pName[2] & ~0x20) == 'L') | |
371 | && !pName[3]) | |
372 | return true; | |
373 | break; | |
374 | case 'P': /* PRN */ | |
375 | if (((pName[1] & ~0x20) == 'R') | |
376 | && ((pName[2] & ~0x20) == 'N') | |
377 | && !pName[3]) | |
378 | return true; | |
379 | break; | |
380 | } | |
381 | return false; | |
382 | } | |
383 | ||
7766f137 GS |
384 | char *VDir::MapPathA(const char *pInName) |
385 | { /* | |
386 | * possiblities -- relative path or absolute path with or without drive letter | |
387 | * OR UNC name | |
388 | */ | |
52236464 | 389 | int driveIndex; |
7766f137 GS |
390 | char szBuffer[(MAX_PATH+1)*2]; |
391 | char szlBuf[MAX_PATH+1]; | |
93153446 GS |
392 | int length = strlen(pInName); |
393 | ||
394 | if (!length) | |
395 | return (char*)pInName; | |
7766f137 | 396 | |
93153446 | 397 | if (length > MAX_PATH) { |
7766f137 GS |
398 | strncpy(szlBuf, pInName, MAX_PATH); |
399 | if (IsPathSep(pInName[0]) && !IsPathSep(pInName[1])) { | |
400 | /* absolute path - reduce length by 2 for drive specifier */ | |
401 | szlBuf[MAX_PATH-2] = '\0'; | |
402 | } | |
403 | else | |
404 | szlBuf[MAX_PATH] = '\0'; | |
405 | pInName = szlBuf; | |
406 | } | |
407 | /* strlen(pInName) is now <= MAX_PATH */ | |
408 | ||
52236464 | 409 | if (length > 1 && pInName[1] == ':') { |
7766f137 | 410 | /* has drive letter */ |
52236464 | 411 | if (length > 2 && IsPathSep(pInName[2])) { |
7766f137 | 412 | /* absolute with drive letter */ |
98b36f88 | 413 | DoGetFullPathNameA((char*)pInName, sizeof(szLocalBufferA), szLocalBufferA); |
7766f137 GS |
414 | } |
415 | else { | |
416 | /* relative path with drive letter */ | |
52236464 TC |
417 | driveIndex = DriveIndex(*pInName); |
418 | if (driveIndex < 0 || driveIndex >= driveLetterCount) | |
419 | return (char *)pInName; | |
420 | strcpy(szBuffer, GetDirA(driveIndex)); | |
7766f137 GS |
421 | strcat(szBuffer, &pInName[2]); |
422 | if(strlen(szBuffer) > MAX_PATH) | |
423 | szBuffer[MAX_PATH] = '\0'; | |
424 | ||
425 | DoGetFullPathNameA(szBuffer, sizeof(szLocalBufferA), szLocalBufferA); | |
426 | } | |
427 | } | |
428 | else { | |
429 | /* no drive letter */ | |
52236464 | 430 | if (length > 1 && IsPathSep(pInName[1]) && IsPathSep(pInName[0])) { |
7766f137 | 431 | /* UNC name */ |
98b36f88 | 432 | DoGetFullPathNameA((char*)pInName, sizeof(szLocalBufferA), szLocalBufferA); |
7766f137 GS |
433 | } |
434 | else { | |
435 | strcpy(szBuffer, GetDefaultDirA()); | |
436 | if (IsPathSep(pInName[0])) { | |
437 | /* absolute path */ | |
98b36f88 GS |
438 | strcpy(&szBuffer[2], pInName); |
439 | DoGetFullPathNameA(szBuffer, sizeof(szLocalBufferA), szLocalBufferA); | |
7766f137 GS |
440 | } |
441 | else { | |
442 | /* relative path */ | |
e2694c95 GS |
443 | if (IsSpecialFileName(pInName)) { |
444 | return (char*)pInName; | |
445 | } | |
446 | else { | |
447 | strcat(szBuffer, pInName); | |
448 | if (strlen(szBuffer) > MAX_PATH) | |
449 | szBuffer[MAX_PATH] = '\0'; | |
7766f137 | 450 | |
e2694c95 GS |
451 | DoGetFullPathNameA(szBuffer, sizeof(szLocalBufferA), szLocalBufferA); |
452 | } | |
7766f137 GS |
453 | } |
454 | } | |
455 | } | |
456 | ||
457 | return szLocalBufferA; | |
458 | } | |
459 | ||
460 | int VDir::SetCurrentDirectoryA(char *lpBuffer) | |
461 | { | |
93153446 | 462 | char *pPtr; |
fd9459bc | 463 | int length, nRet = -1; |
7766f137 | 464 | |
93153446 GS |
465 | pPtr = MapPathA(lpBuffer); |
466 | length = strlen(pPtr); | |
467 | if(length > 3 && IsPathSep(pPtr[length-1])) { | |
468 | /* don't remove the trailing slash from 'x:\' */ | |
469 | pPtr[length-1] = '\0'; | |
fd9459bc | 470 | } |
7766f137 | 471 | |
93153446 GS |
472 | DWORD r = GetFileAttributesA(pPtr); |
473 | if ((r != 0xffffffff) && (r & FILE_ATTRIBUTE_DIRECTORY)) | |
474 | { | |
2eb25c99 JH |
475 | char szBuffer[(MAX_PATH+1)*2]; |
476 | DoGetFullPathNameA(pPtr, sizeof(szBuffer), szBuffer); | |
477 | SetDefaultDirA(szBuffer, DriveIndex(szBuffer[0])); | |
7766f137 GS |
478 | nRet = 0; |
479 | } | |
93153446 | 480 | |
7766f137 GS |
481 | return nRet; |
482 | } | |
483 | ||
484 | DWORD VDir::CalculateEnvironmentSpace(void) | |
9afd7f94 | 485 | { /* the current directory environment strings are stored as '=D:=d:\path' */ |
7766f137 GS |
486 | int index; |
487 | DWORD dwSize = 0; | |
488 | for (index = 0; index < driveCount; ++index) { | |
489 | if (dirTableA[index] != NULL) { | |
9afd7f94 | 490 | dwSize += strlen(dirTableA[index]) + 5; /* add 1 for trailing NULL and 4 for '=D:=' */ |
7766f137 GS |
491 | } |
492 | } | |
493 | return dwSize; | |
494 | } | |
495 | ||
496 | LPSTR VDir::BuildEnvironmentSpace(LPSTR lpStr) | |
9afd7f94 GS |
497 | { /* store the current directory environment strings as '=D:=d:\path' */ |
498 | int index, length; | |
7766f137 GS |
499 | LPSTR lpDirStr; |
500 | for (index = 0; index < driveCount; ++index) { | |
501 | lpDirStr = dirTableA[index]; | |
502 | if (lpDirStr != NULL) { | |
503 | lpStr[0] = '='; | |
504 | lpStr[1] = lpDirStr[0]; | |
9afd7f94 GS |
505 | lpStr[2] = '\0'; |
506 | CharUpper(&lpStr[1]); | |
507 | lpStr[2] = ':'; | |
508 | lpStr[3] = '='; | |
509 | strcpy(&lpStr[4], lpDirStr); | |
510 | length = strlen(lpDirStr); | |
511 | lpStr += length + 5; /* add 1 for trailing NULL and 4 for '=D:=' */ | |
512 | if (length > 3 && IsPathSep(lpStr[-2])) { | |
513 | lpStr[-2] = '\0'; /* remove the trailing path separator */ | |
514 | --lpStr; | |
515 | } | |
7766f137 GS |
516 | } |
517 | } | |
518 | return lpStr; | |
519 | } | |
520 | ||
521 | inline BOOL IsPathSep(WCHAR ch) | |
522 | { | |
523 | return (ch == '\\' || ch == '/'); | |
524 | } | |
525 | ||
526 | inline void DoGetFullPathNameW(WCHAR* lpBuffer, DWORD dwSize, WCHAR* Dest) | |
527 | { | |
528 | WCHAR *pPtr; | |
529 | ||
530 | /* | |
531 | * On WinNT GetFullPathName does not fail, (or at least always | |
9849c14c | 532 | * succeeds when the drive is valid) WinNT does set *Dest to NULL |
7766f137 GS |
533 | * On Win98 GetFullPathName will set last error if it fails, but |
534 | * does not touch *Dest | |
535 | */ | |
536 | *Dest = '\0'; | |
537 | GetFullPathNameW(lpBuffer, dwSize, Dest, &pPtr); | |
538 | } | |
539 | ||
e2694c95 GS |
540 | inline bool IsSpecialFileName(const WCHAR* pName) |
541 | { | |
542 | /* specical file names are devices that the system can open | |
543 | * these include AUX, CON, NUL, PRN, COMx, LPTx, CLOCK$, CONIN$, CONOUT$ | |
544 | * (x is a single digit, and names are case-insensitive) | |
545 | */ | |
546 | WCHAR ch = (pName[0] & ~0x20); | |
547 | switch (ch) | |
548 | { | |
549 | case 'A': /* AUX */ | |
550 | if (((pName[1] & ~0x20) == 'U') | |
551 | && ((pName[2] & ~0x20) == 'X') | |
552 | && !pName[3]) | |
553 | return true; | |
554 | break; | |
555 | case 'C': /* CLOCK$, COMx, CON, CONIN$ CONOUT$ */ | |
556 | ch = (pName[1] & ~0x20); | |
557 | switch (ch) | |
558 | { | |
559 | case 'L': /* CLOCK$ */ | |
560 | if (((pName[2] & ~0x20) == 'O') | |
561 | && ((pName[3] & ~0x20) == 'C') | |
562 | && ((pName[4] & ~0x20) == 'K') | |
563 | && (pName[5] == '$') | |
564 | && !pName[6]) | |
565 | return true; | |
566 | break; | |
567 | case 'O': /* COMx, CON, CONIN$ CONOUT$ */ | |
568 | if ((pName[2] & ~0x20) == 'M') { | |
9c353526 | 569 | if ( inRANGE(pName[3], '1', '9') |
e2694c95 GS |
570 | && !pName[4]) |
571 | return true; | |
572 | } | |
573 | else if ((pName[2] & ~0x20) == 'N') { | |
574 | if (!pName[3]) | |
575 | return true; | |
576 | else if ((pName[3] & ~0x20) == 'I') { | |
577 | if (((pName[4] & ~0x20) == 'N') | |
578 | && (pName[5] == '$') | |
579 | && !pName[6]) | |
580 | return true; | |
581 | } | |
582 | else if ((pName[3] & ~0x20) == 'O') { | |
583 | if (((pName[4] & ~0x20) == 'U') | |
584 | && ((pName[5] & ~0x20) == 'T') | |
585 | && (pName[6] == '$') | |
586 | && !pName[7]) | |
587 | return true; | |
588 | } | |
589 | } | |
590 | break; | |
591 | } | |
592 | break; | |
593 | case 'L': /* LPTx */ | |
594 | if (((pName[1] & ~0x20) == 'U') | |
595 | && ((pName[2] & ~0x20) == 'X') | |
9c353526 | 596 | && inRANGE(pName[3], '1', '9') |
e2694c95 GS |
597 | && !pName[4]) |
598 | return true; | |
599 | break; | |
600 | case 'N': /* NUL */ | |
601 | if (((pName[1] & ~0x20) == 'U') | |
602 | && ((pName[2] & ~0x20) == 'L') | |
603 | && !pName[3]) | |
604 | return true; | |
605 | break; | |
606 | case 'P': /* PRN */ | |
607 | if (((pName[1] & ~0x20) == 'R') | |
608 | && ((pName[2] & ~0x20) == 'N') | |
609 | && !pName[3]) | |
610 | return true; | |
611 | break; | |
612 | } | |
613 | return false; | |
614 | } | |
615 | ||
7766f137 GS |
616 | WCHAR* VDir::MapPathW(const WCHAR *pInName) |
617 | { /* | |
618 | * possiblities -- relative path or absolute path with or without drive letter | |
619 | * OR UNC name | |
620 | */ | |
52236464 | 621 | int driveIndex; |
7766f137 GS |
622 | WCHAR szBuffer[(MAX_PATH+1)*2]; |
623 | WCHAR szlBuf[MAX_PATH+1]; | |
93153446 | 624 | int length = wcslen(pInName); |
7766f137 | 625 | |
93153446 GS |
626 | if (!length) |
627 | return (WCHAR*)pInName; | |
628 | ||
629 | if (length > MAX_PATH) { | |
7766f137 GS |
630 | wcsncpy(szlBuf, pInName, MAX_PATH); |
631 | if (IsPathSep(pInName[0]) && !IsPathSep(pInName[1])) { | |
632 | /* absolute path - reduce length by 2 for drive specifier */ | |
633 | szlBuf[MAX_PATH-2] = '\0'; | |
634 | } | |
635 | else | |
636 | szlBuf[MAX_PATH] = '\0'; | |
637 | pInName = szlBuf; | |
638 | } | |
639 | /* strlen(pInName) is now <= MAX_PATH */ | |
640 | ||
52236464 | 641 | if (length > 1 && pInName[1] == ':') { |
7766f137 GS |
642 | /* has drive letter */ |
643 | if (IsPathSep(pInName[2])) { | |
644 | /* absolute with drive letter */ | |
98b36f88 | 645 | DoGetFullPathNameW((WCHAR*)pInName, (sizeof(szLocalBufferW)/sizeof(WCHAR)), szLocalBufferW); |
7766f137 GS |
646 | } |
647 | else { | |
648 | /* relative path with drive letter */ | |
52236464 TC |
649 | driveIndex = DriveIndex(*pInName); |
650 | if (driveIndex < 0 || driveIndex >= driveLetterCount) | |
651 | return (WCHAR *)pInName; | |
652 | wcscpy(szBuffer, GetDirW(driveIndex)); | |
7766f137 GS |
653 | wcscat(szBuffer, &pInName[2]); |
654 | if(wcslen(szBuffer) > MAX_PATH) | |
655 | szBuffer[MAX_PATH] = '\0'; | |
656 | ||
657 | DoGetFullPathNameW(szBuffer, (sizeof(szLocalBufferW)/sizeof(WCHAR)), szLocalBufferW); | |
658 | } | |
659 | } | |
660 | else { | |
661 | /* no drive letter */ | |
52236464 | 662 | if (length > 1 && IsPathSep(pInName[1]) && IsPathSep(pInName[0])) { |
7766f137 | 663 | /* UNC name */ |
98b36f88 | 664 | DoGetFullPathNameW((WCHAR*)pInName, (sizeof(szLocalBufferW)/sizeof(WCHAR)), szLocalBufferW); |
7766f137 GS |
665 | } |
666 | else { | |
667 | wcscpy(szBuffer, GetDefaultDirW()); | |
668 | if (IsPathSep(pInName[0])) { | |
669 | /* absolute path */ | |
98b36f88 GS |
670 | wcscpy(&szBuffer[2], pInName); |
671 | DoGetFullPathNameW(szBuffer, (sizeof(szLocalBufferW)/sizeof(WCHAR)), szLocalBufferW); | |
7766f137 GS |
672 | } |
673 | else { | |
674 | /* relative path */ | |
e2694c95 GS |
675 | if (IsSpecialFileName(pInName)) { |
676 | return (WCHAR*)pInName; | |
677 | } | |
678 | else { | |
679 | wcscat(szBuffer, pInName); | |
680 | if (wcslen(szBuffer) > MAX_PATH) | |
681 | szBuffer[MAX_PATH] = '\0'; | |
7766f137 | 682 | |
e2694c95 GS |
683 | DoGetFullPathNameW(szBuffer, (sizeof(szLocalBufferW)/sizeof(WCHAR)), szLocalBufferW); |
684 | } | |
7766f137 GS |
685 | } |
686 | } | |
687 | } | |
688 | return szLocalBufferW; | |
689 | } | |
690 | ||
fd9459bc GS |
691 | int VDir::SetCurrentDirectoryW(WCHAR *lpBuffer) |
692 | { | |
93153446 | 693 | WCHAR *pPtr; |
fd9459bc GS |
694 | int length, nRet = -1; |
695 | ||
93153446 GS |
696 | pPtr = MapPathW(lpBuffer); |
697 | length = wcslen(pPtr); | |
698 | if(length > 3 && IsPathSep(pPtr[length-1])) { | |
699 | /* don't remove the trailing slash from 'x:\' */ | |
700 | pPtr[length-1] = '\0'; | |
fd9459bc GS |
701 | } |
702 | ||
93153446 GS |
703 | DWORD r = GetFileAttributesW(pPtr); |
704 | if ((r != 0xffffffff) && (r & FILE_ATTRIBUTE_DIRECTORY)) | |
705 | { | |
2eb25c99 JH |
706 | WCHAR wBuffer[(MAX_PATH+1)*2]; |
707 | DoGetFullPathNameW(pPtr, (sizeof(wBuffer)/sizeof(WCHAR)), wBuffer); | |
708 | SetDefaultDirW(wBuffer, DriveIndex((char)wBuffer[0])); | |
fd9459bc GS |
709 | nRet = 0; |
710 | } | |
93153446 | 711 | |
fd9459bc GS |
712 | return nRet; |
713 | } | |
7766f137 GS |
714 | |
715 | #endif /* ___VDir_H___ */ |