| 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 = 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___ */ |