dlls/msvcrt/dir.c

   1 /*
   2  * msvcrt.dll drive/directory functions
   3  *
   4  * Copyright 1996,1998 Marcus Meissner
   5  * Copyright 1996 Jukka Iivonen
   6  * Copyright 1997,2000 Uwe Bonnes
   7  * Copyright 2000 Jon Griffiths
   8  *
   9  * This library is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Lesser General Public
  11  * License as published by the Free Software Foundation; either
  12  * version 2.1 of the License, or (at your option) any later version.
  13  *
  14  * This library is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public
  20  * License along with this library; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  22  */
  23
  24 #include "config.h"
  25 #include "wine/port.h"
  26
  27 #include <stdarg.h>
  28 #include <time.h>
  29
  30 #include "windef.h"
  31 #include "winbase.h"
  32 #include "winternl.h"
  33 #include "wine/unicode.h"
  34 #include "msvcrt.h"
  35 #include "wine/debug.h"
  36
  37 WINE_DEFAULT_DEBUG_CHANNEL(msvcrt);
  38
  39 /* INTERNAL: Translate WIN32_FIND_DATAA to finddata_t  */
  40 static void msvcrt_fttofd( const WIN32_FIND_DATAA *fd, struct MSVCRT__finddata_t* ft)
  41 {
  42   DWORD dw;
  43
  44   if (fd->dwFileAttributes == FILE_ATTRIBUTE_NORMAL)
  45     ft->attrib = 0;
  46   else
  47     ft->attrib = fd->dwFileAttributes;
  48
  49   RtlTimeToSecondsSince1970( (const LARGE_INTEGER *)&fd->ftCreationTime, &dw );
  50   ft->time_create = dw;
  51   RtlTimeToSecondsSince1970( (const LARGE_INTEGER *)&fd->ftLastAccessTime, &dw );
  52   ft->time_access = dw;
  53   RtlTimeToSecondsSince1970( (const LARGE_INTEGER *)&fd->ftLastWriteTime, &dw );
  54   ft->time_write = dw;
  55   ft->size = fd->nFileSizeLow;
  56   strcpy(ft->name, fd->cFileName);
  57 }
  58
  59 /* INTERNAL: Translate WIN32_FIND_DATAW to wfinddata_t  */
  60 static void msvcrt_wfttofd( const WIN32_FIND_DATAW *fd, struct MSVCRT__wfinddata_t* ft)
  61 {
  62   DWORD dw;
  63
  64   if (fd->dwFileAttributes == FILE_ATTRIBUTE_NORMAL)
  65     ft->attrib = 0;
  66   else
  67     ft->attrib = fd->dwFileAttributes;
  68
  69   RtlTimeToSecondsSince1970( (const LARGE_INTEGER *)&fd->ftCreationTime, &dw );
  70   ft->time_create = dw;
  71   RtlTimeToSecondsSince1970( (const LARGE_INTEGER *)&fd->ftLastAccessTime, &dw );
  72   ft->time_access = dw;
  73   RtlTimeToSecondsSince1970( (const LARGE_INTEGER *)&fd->ftLastWriteTime, &dw );
  74   ft->time_write = dw;
  75   ft->size = fd->nFileSizeLow;
  76   strcpyW(ft->name, fd->cFileName);
  77 }
  78
  79 /* INTERNAL: Translate WIN32_FIND_DATAA to finddatai64_t  */
  80 static void msvcrt_fttofdi64( const WIN32_FIND_DATAA *fd, struct MSVCRT__finddatai64_t* ft)
  81 {
  82   DWORD dw;
  83
  84   if (fd->dwFileAttributes == FILE_ATTRIBUTE_NORMAL)
  85     ft->attrib = 0;
  86   else
  87     ft->attrib = fd->dwFileAttributes;
  88
  89   RtlTimeToSecondsSince1970( (const LARGE_INTEGER *)&fd->ftCreationTime, &dw );
  90   ft->time_create = dw;
  91   RtlTimeToSecondsSince1970( (const LARGE_INTEGER *)&fd->ftLastAccessTime, &dw );
  92   ft->time_access = dw;
  93   RtlTimeToSecondsSince1970( (const LARGE_INTEGER *)&fd->ftLastWriteTime, &dw );
  94   ft->time_write = dw;
  95   ft->size = ((__int64)fd->nFileSizeHigh) << 32 | fd->nFileSizeLow;
  96   strcpy(ft->name, fd->cFileName);
  97 }
  98
  99 /* INTERNAL: Translate WIN32_FIND_DATAW to wfinddatai64_t  */
 100 static void msvcrt_wfttofdi64( const WIN32_FIND_DATAW *fd, struct MSVCRT__wfinddatai64_t* ft)
 101 {
 102   DWORD dw;
 103
 104   if (fd->dwFileAttributes == FILE_ATTRIBUTE_NORMAL)
 105     ft->attrib = 0;
 106   else
 107     ft->attrib = fd->dwFileAttributes;
 108
 109   RtlTimeToSecondsSince1970( (const LARGE_INTEGER *)&fd->ftCreationTime, &dw );
 110   ft->time_create = dw;
 111   RtlTimeToSecondsSince1970( (const LARGE_INTEGER *)&fd->ftLastAccessTime, &dw );
 112   ft->time_access = dw;
 113   RtlTimeToSecondsSince1970( (const LARGE_INTEGER *)&fd->ftLastWriteTime, &dw );
 114   ft->time_write = dw;
 115   ft->size = ((__int64)fd->nFileSizeHigh) << 32 | fd->nFileSizeLow;
 116   strcpyW(ft->name, fd->cFileName);
 117 }
 118
 119 /*********************************************************************
 120  *              _chdir (MSVCRT.@)
 121  *
 122  * Change the current working directory.
 123  *
 124  * PARAMS
 125  *  newdir [I] Directory to change to
 126  *
 127  * RETURNS
 128  *  Success: 0. The current working directory is set to newdir.
 129  *  Failure: -1. errno indicates the error.
 130  *
 131  * NOTES
 132  *  See SetCurrentDirectoryA.
 133  */
 134 int CDECL MSVCRT__chdir(const char * newdir)
 135 {
 136   if (!SetCurrentDirectoryA(newdir))
 137   {
 138     msvcrt_set_errno(newdir?GetLastError():0);
 139     return -1;
 140   }
 141   return 0;
 142 }
 143
 144 /*********************************************************************
 145  *              _wchdir (MSVCRT.@)
 146  *
 147  * Unicode version of _chdir.
 148  */
 149 int CDECL _wchdir(const MSVCRT_wchar_t * newdir)
 150 {
 151   if (!SetCurrentDirectoryW(newdir))
 152   {
 153     msvcrt_set_errno(newdir?GetLastError():0);
 154     return -1;
 155   }
 156   return 0;
 157 }
 158
 159 /*********************************************************************
 160  *              _chdrive (MSVCRT.@)
 161  *
 162  * Change the current drive.
 163  *
 164  * PARAMS
 165  *  newdrive [I] Drive number to change to (1 = 'A', 2 = 'B', ...)
 166  *
 167  * RETURNS
 168  *  Success: 0. The current drive is set to newdrive.
 169  *  Failure: -1. errno indicates the error.
 170  *
 171  * NOTES
 172  *  See SetCurrentDirectoryA.
 173  */
 174 int CDECL _chdrive(int newdrive)
 175 {
 176   WCHAR buffer[3] = {'A', ':', 0};
 177
 178   buffer[0] += newdrive - 1;
 179   if (!SetCurrentDirectoryW( buffer ))
 180   {
 181     msvcrt_set_errno(GetLastError());
 182     if (newdrive <= 0)
 183       *MSVCRT__errno() = MSVCRT_EACCES;
 184     return -1;
 185   }
 186   return 0;
 187 }
 188
 189 /*********************************************************************
 190  *              _findclose (MSVCRT.@)
 191  *
 192  * Close a handle returned by _findfirst().
 193  *
 194  * PARAMS
 195  *  hand [I] Handle to close
 196  *
 197  * RETURNS
 198  *  Success: 0. All resources associated with hand are freed.
 199  *  Failure: -1. errno indicates the error.
 200  *
 201  * NOTES
 202  *  See FindClose.
 203  */
 204 int CDECL MSVCRT__findclose(long hand)
 205 {
 206   TRACE(":handle %ld\n",hand);
 207   if (!FindClose((HANDLE)hand))
 208   {
 209     msvcrt_set_errno(GetLastError());
 210     return -1;
 211   }
 212   return 0;
 213 }
 214
 215 /*********************************************************************
 216  *              _findfirst (MSVCRT.@)
 217  *
 218  * Open a handle for iterating through a directory.
 219  *
 220  * PARAMS
 221  *  fspec [I] File specification of files to iterate.
 222  *  ft    [O] Information for the first file found.
 223  *
 224  * RETURNS
 225  *  Success: A handle suitable for passing to _findnext() and _findclose().
 226  *           ft is populated with the details of the found file.
 227  *  Failure: -1. errno indicates the error.
 228  *
 229  * NOTES
 230  *  See FindFirstFileA.
 231  */
 232 long CDECL MSVCRT__findfirst(const char * fspec, struct MSVCRT__finddata_t* ft)
 233 {
 234   WIN32_FIND_DATAA find_data;
 235   HANDLE hfind;
 236
 237   hfind  = FindFirstFileA(fspec, &find_data);
 238   if (hfind == INVALID_HANDLE_VALUE)
 239   {
 240     msvcrt_set_errno(GetLastError());
 241     return -1;
 242   }
 243   msvcrt_fttofd(&find_data,ft);
 244   TRACE(":got handle %p\n",hfind);
 245   return (long)hfind;
 246 }
 247
 248 /*********************************************************************
 249  *              _wfindfirst (MSVCRT.@)
 250  *
 251  * Unicode version of _findfirst.
 252  */
 253 long CDECL MSVCRT__wfindfirst(const MSVCRT_wchar_t * fspec, struct MSVCRT__wfinddata_t* ft)
 254 {
 255   WIN32_FIND_DATAW find_data;
 256   HANDLE hfind;
 257
 258   hfind  = FindFirstFileW(fspec, &find_data);
 259   if (hfind == INVALID_HANDLE_VALUE)
 260   {
 261     msvcrt_set_errno(GetLastError());
 262     return -1;
 263   }
 264   msvcrt_wfttofd(&find_data,ft);
 265   TRACE(":got handle %p\n",hfind);
 266   return (long)hfind;
 267 }
 268
 269 /*********************************************************************
 270  *              _findfirsti64 (MSVCRT.@)
 271  *
 272  * 64-bit version of _findfirst.
 273  */
 274 long CDECL MSVCRT__findfirsti64(const char * fspec, struct MSVCRT__finddatai64_t* ft)
 275 {
 276   WIN32_FIND_DATAA find_data;
 277   HANDLE hfind;
 278
 279   hfind  = FindFirstFileA(fspec, &find_data);
 280   if (hfind == INVALID_HANDLE_VALUE)
 281   {
 282     msvcrt_set_errno(GetLastError());
 283     return -1;
 284   }
 285   msvcrt_fttofdi64(&find_data,ft);
 286   TRACE(":got handle %p\n",hfind);
 287   return (long)hfind;
 288 }
 289
 290 /*********************************************************************
 291  *              _wfindfirsti64 (MSVCRT.@)
 292  *
 293  * Unicode version of _findfirsti64.
 294  */
 295 long CDECL MSVCRT__wfindfirsti64(const MSVCRT_wchar_t * fspec, struct MSVCRT__wfinddatai64_t* ft)
 296 {
 297   WIN32_FIND_DATAW find_data;
 298   HANDLE hfind;
 299
 300   hfind  = FindFirstFileW(fspec, &find_data);
 301   if (hfind == INVALID_HANDLE_VALUE)
 302   {
 303     msvcrt_set_errno(GetLastError());
 304     return -1;
 305   }
 306   msvcrt_wfttofdi64(&find_data,ft);
 307   TRACE(":got handle %p\n",hfind);
 308   return (long)hfind;
 309 }
 310
 311 /*********************************************************************
 312  *              _findnext (MSVCRT.@)
 313  *
 314  * Find the next file from a file search handle.
 315  *
 316  * PARAMS
 317  *  hand  [I] Handle to the search returned from _findfirst().
 318  *  ft    [O] Information for the file found.
 319  *
 320  * RETURNS
 321  *  Success: 0. ft is populated with the details of the found file.
 322  *  Failure: -1. errno indicates the error.
 323  *
 324  * NOTES
 325  *  See FindNextFileA.
 326  */
 327 int CDECL MSVCRT__findnext(long hand, struct MSVCRT__finddata_t * ft)
 328 {
 329   WIN32_FIND_DATAA find_data;
 330
 331   if (!FindNextFileA((HANDLE)hand, &find_data))
 332   {
 333     *MSVCRT__errno() = MSVCRT_ENOENT;
 334     return -1;
 335   }
 336
 337   msvcrt_fttofd(&find_data,ft);
 338   return 0;
 339 }
 340
 341 /*********************************************************************
 342  *              _wfindnext (MSVCRT.@)
 343  *
 344  * Unicode version of _findnext.
 345  */
 346 int CDECL MSVCRT__wfindnext(long hand, struct MSVCRT__wfinddata_t * ft)
 347 {
 348   WIN32_FIND_DATAW find_data;
 349
 350   if (!FindNextFileW((HANDLE)hand, &find_data))
 351   {
 352     *MSVCRT__errno() = MSVCRT_ENOENT;
 353     return -1;
 354   }
 355
 356   msvcrt_wfttofd(&find_data,ft);
 357   return 0;
 358 }
 359
 360 /*********************************************************************
 361  *              _findnexti64 (MSVCRT.@)
 362  *
 363  * 64-bit version of _findnext.
 364  */
 365 int CDECL MSVCRT__findnexti64(long hand, struct MSVCRT__finddatai64_t * ft)
 366 {
 367   WIN32_FIND_DATAA find_data;
 368
 369   if (!FindNextFileA((HANDLE)hand, &find_data))
 370   {
 371     *MSVCRT__errno() = MSVCRT_ENOENT;
 372     return -1;
 373   }
 374
 375   msvcrt_fttofdi64(&find_data,ft);
 376   return 0;
 377 }
 378
 379 /*********************************************************************
 380  *              _wfindnexti64 (MSVCRT.@)
 381  *
 382  * Unicode version of _findnexti64.
 383  */
 384 int CDECL MSVCRT__wfindnexti64(long hand, struct MSVCRT__wfinddatai64_t * ft)
 385 {
 386   WIN32_FIND_DATAW find_data;
 387
 388   if (!FindNextFileW((HANDLE)hand, &find_data))
 389   {
 390     *MSVCRT__errno() = MSVCRT_ENOENT;
 391     return -1;
 392   }
 393
 394   msvcrt_wfttofdi64(&find_data,ft);
 395   return 0;
 396 }
 397
 398 /*********************************************************************
 399  *              _getcwd (MSVCRT.@)
 400  *
 401  * Get the current working directory.
 402  *
 403  * PARAMS
 404  *  buf  [O] Destination for current working directory.
 405  *  size [I] Size of buf in characters
 406  *
 407  * RETURNS
 408  * Success: If buf is NULL, returns an allocated string containing the path.
 409  *          Otherwise populates buf with the path and returns it.
 410  * Failure: NULL. errno indicates the error.
 411  */
 412 char* CDECL _getcwd(char * buf, int size)
 413 {
 414   char dir[MAX_PATH];
 415   int dir_len = GetCurrentDirectoryA(MAX_PATH,dir);
 416
 417   if (dir_len < 1)
 418     return NULL; /* FIXME: Real return value untested */
 419
 420   if (!buf)
 421   {
 422       if (size <= dir_len) size = dir_len + 1;
 423       if (!(buf = MSVCRT_malloc( size ))) return NULL;
 424   }
 425   else if (dir_len >= size)
 426   {
 427     *MSVCRT__errno() = MSVCRT_ERANGE;
 428     return NULL; /* buf too small */
 429   }
 430   strcpy(buf,dir);
 431   return buf;
 432 }
 433
 434 /*********************************************************************
 435  *              _wgetcwd (MSVCRT.@)
 436  *
 437  * Unicode version of _getcwd.
 438  */
 439 MSVCRT_wchar_t* CDECL _wgetcwd(MSVCRT_wchar_t * buf, int size)
 440 {
 441   MSVCRT_wchar_t dir[MAX_PATH];
 442   int dir_len = GetCurrentDirectoryW(MAX_PATH,dir);
 443
 444   if (dir_len < 1)
 445     return NULL; /* FIXME: Real return value untested */
 446
 447   if (!buf)
 448   {
 449       if (size <= dir_len) size = dir_len + 1;
 450       if (!(buf = MSVCRT_malloc( size * sizeof(WCHAR) ))) return NULL;
 451   }
 452   if (dir_len >= size)
 453   {
 454     *MSVCRT__errno() = MSVCRT_ERANGE;
 455     return NULL; /* buf too small */
 456   }
 457   strcpyW(buf,dir);
 458   return buf;
 459 }
 460
 461 /*********************************************************************
 462  *              _getdrive (MSVCRT.@)
 463  *
 464  * Get the current drive number.
 465  *
 466  * PARAMS
 467  *  None.
 468  *
 469  * RETURNS
 470  *  Success: The drive letter number from 1 to 26 ("A:" to "Z:").
 471  *  Failure: 0.
 472  */
 473 int CDECL _getdrive(void)
 474 {
 475     WCHAR buffer[MAX_PATH];
 476     if (GetCurrentDirectoryW( MAX_PATH, buffer ) &&
 477         buffer[0] >= 'A' && buffer[0] <= 'z' && buffer[1] == ':')
 478         return toupperW(buffer[0]) - 'A' + 1;
 479     return 0;
 480 }
 481
 482 /*********************************************************************
 483  *              _getdcwd (MSVCRT.@)
 484  *
 485  * Get the current working directory on a given disk.
 486  *
 487  * PARAMS
 488  *  drive [I] Drive letter to get the current working directory from.
 489  *  buf   [O] Destination for the current working directory.
 490  *  size  [I] Length of drive in characters.
 491  *
 492  * RETURNS
 493  *  Success: If drive is NULL, returns an allocated string containing the path.
 494  *           Otherwise populates drive with the path and returns it.
 495  *  Failure: NULL. errno indicates the error.
 496  */
 497 char* CDECL _getdcwd(int drive, char * buf, int size)
 498 {
 499   static char* dummy;
 500
 501   TRACE(":drive %d(%c), size %d\n",drive, drive + 'A' - 1, size);
 502
 503   if (!drive || drive == _getdrive())
 504     return _getcwd(buf,size); /* current */
 505   else
 506   {
 507     char dir[MAX_PATH];
 508     char drivespec[4] = {'A', ':', 0};
 509     int dir_len;
 510
 511     drivespec[0] += drive - 1;
 512     if (GetDriveTypeA(drivespec) < DRIVE_REMOVABLE)
 513     {
 514       *MSVCRT__errno() = MSVCRT_EACCES;
 515       return NULL;
 516     }
 517
 518     dir_len = GetFullPathNameA(drivespec,MAX_PATH,dir,&dummy);
 519     if (dir_len >= size || dir_len < 1)
 520     {
 521       *MSVCRT__errno() = MSVCRT_ERANGE;
 522       return NULL; /* buf too small */
 523     }
 524
 525     TRACE(":returning '%s'\n", dir);
 526     if (!buf)
 527       return _strdup(dir); /* allocate */
 528
 529     strcpy(buf,dir);
 530   }
 531   return buf;
 532 }
 533
 534 /*********************************************************************
 535  *              _wgetdcwd (MSVCRT.@)
 536  *
 537  * Unicode version of _wgetdcwd.
 538  */
 539 MSVCRT_wchar_t* CDECL _wgetdcwd(int drive, MSVCRT_wchar_t * buf, int size)
 540 {
 541   static MSVCRT_wchar_t* dummy;
 542
 543   TRACE(":drive %d(%c), size %d\n",drive, drive + 'A' - 1, size);
 544
 545   if (!drive || drive == _getdrive())
 546     return _wgetcwd(buf,size); /* current */
 547   else
 548   {
 549     MSVCRT_wchar_t dir[MAX_PATH];
 550     MSVCRT_wchar_t drivespec[4] = {'A', ':', '\\', 0};
 551     int dir_len;
 552
 553     drivespec[0] += drive - 1;
 554     if (GetDriveTypeW(drivespec) < DRIVE_REMOVABLE)
 555     {
 556       *MSVCRT__errno() = MSVCRT_EACCES;
 557       return NULL;
 558     }
 559
 560     dir_len = GetFullPathNameW(drivespec,MAX_PATH,dir,&dummy);
 561     if (dir_len >= size || dir_len < 1)
 562     {
 563       *MSVCRT__errno() = MSVCRT_ERANGE;
 564       return NULL; /* buf too small */
 565     }
 566
 567     TRACE(":returning %s\n", debugstr_w(dir));
 568     if (!buf)
 569       return _wcsdup(dir); /* allocate */
 570     strcpyW(buf,dir);
 571   }
 572   return buf;
 573 }
 574
 575 /*********************************************************************
 576  *              _getdiskfree (MSVCRT.@)
 577  *
 578  * Get information about the free space on a drive.
 579  *
 580  * PARAMS
 581  *  disk [I] Drive number to get information about (1 = 'A', 2 = 'B', ...)
 582  *  info [O] Destination for the resulting information.
 583  *
 584  * RETURNS
 585  *  Success: 0. info is updated with the free space information.
 586  *  Failure: An error code from GetLastError().
 587  *
 588  * NOTES
 589  *  See GetLastError().
 590  */
 591 unsigned int CDECL MSVCRT__getdiskfree(unsigned int disk, struct MSVCRT__diskfree_t * d)
 592 {
 593   WCHAR drivespec[4] = {'@', ':', '\\', 0};
 594   DWORD ret[4];
 595   unsigned int err;
 596
 597   if (disk > 26)
 598     return ERROR_INVALID_PARAMETER; /* MSVCRT doesn't set errno here */
 599
 600   drivespec[0] += disk; /* make a drive letter */
 601
 602   if (GetDiskFreeSpaceW(disk==0?NULL:drivespec,ret,ret+1,ret+2,ret+3))
 603   {
 604     d->sectors_per_cluster = ret[0];
 605     d->bytes_per_sector = ret[1];
 606     d->avail_clusters = ret[2];
 607     d->total_clusters = ret[3];
 608     return 0;
 609   }
 610   err = GetLastError();
 611   msvcrt_set_errno(err);
 612   return err;
 613 }
 614
 615 /*********************************************************************
 616  *              _mkdir (MSVCRT.@)
 617  *
 618  * Create a directory.
 619  *
 620  * PARAMS
 621  *  newdir [I] Name of directory to create.
 622  *
 623  * RETURNS
 624  *  Success: 0. The directory indicated by newdir is created.
 625  *  Failure: -1. errno indicates the error.
 626  *
 627  * NOTES
 628  *  See CreateDirectoryA.
 629  */
 630 int CDECL MSVCRT__mkdir(const char * newdir)
 631 {
 632   if (CreateDirectoryA(newdir,NULL))
 633     return 0;
 634   msvcrt_set_errno(GetLastError());
 635   return -1;
 636 }
 637
 638 /*********************************************************************
 639  *              _wmkdir (MSVCRT.@)
 640  *
 641  * Unicode version of _mkdir.
 642  */
 643 int CDECL _wmkdir(const MSVCRT_wchar_t* newdir)
 644 {
 645   if (CreateDirectoryW(newdir,NULL))
 646     return 0;
 647   msvcrt_set_errno(GetLastError());
 648   return -1;
 649 }
 650
 651 /*********************************************************************
 652  *              _rmdir (MSVCRT.@)
 653  *
 654  * Delete a directory.
 655  *
 656  * PARAMS
 657  *  dir [I] Name of directory to delete.
 658  *
 659  * RETURNS
 660  *  Success: 0. The directory indicated by newdir is deleted.
 661  *  Failure: -1. errno indicates the error.
 662  *
 663  * NOTES
 664  *  See RemoveDirectoryA.
 665  */
 666 int CDECL MSVCRT__rmdir(const char * dir)
 667 {
 668   if (RemoveDirectoryA(dir))
 669     return 0;
 670   msvcrt_set_errno(GetLastError());
 671   return -1;
 672 }
 673
 674 /*********************************************************************
 675  *              _wrmdir (MSVCRT.@)
 676  *
 677  * Unicode version of _rmdir.
 678  */
 679 int CDECL _wrmdir(const MSVCRT_wchar_t * dir)
 680 {
 681   if (RemoveDirectoryW(dir))
 682     return 0;
 683   msvcrt_set_errno(GetLastError());
 684   return -1;
 685 }
 686
 687 /*********************************************************************
 688  *              _wsplitpath (MSVCRT.@)
 689  *
 690  * Unicode version of _splitpath.
 691  */
 692 void CDECL _wsplitpath(const MSVCRT_wchar_t *inpath, MSVCRT_wchar_t *drv, MSVCRT_wchar_t *dir,
 693                        MSVCRT_wchar_t *fname, MSVCRT_wchar_t *ext )
 694 {
 695     const MSVCRT_wchar_t *p, *end;
 696
 697     if (inpath[0] && inpath[1] == ':')
 698     {
 699         if (drv)
 700         {
 701             drv[0] = inpath[0];
 702             drv[1] = inpath[1];
 703             drv[2] = 0;
 704         }
 705         inpath += 2;
 706     }
 707     else if (drv) drv[0] = 0;
 708
 709     /* look for end of directory part */
 710     end = NULL;
 711     for (p = inpath; *p; p++) if (*p == '/' || *p == '\\') end = p + 1;
 712
 713     if (end)  /* got a directory */
 714     {
 715         if (dir)
 716         {
 717             memcpy( dir, inpath, (end - inpath) * sizeof(MSVCRT_wchar_t) );
 718             dir[end - inpath] = 0;
 719         }
 720         inpath = end;
 721     }
 722     else if (dir) dir[0] = 0;
 723
 724     /* look for extension: what's after the last dot */
 725     end = NULL;
 726     for (p = inpath; *p; p++) if (*p == '.') end = p;
 727
 728     if (!end) end = p; /* there's no extension */
 729
 730     if (fname)
 731     {
 732         memcpy( fname, inpath, (end - inpath) * sizeof(MSVCRT_wchar_t) );
 733         fname[end - inpath] = 0;
 734     }
 735     if (ext) strcpyW( ext, end );
 736 }
 737
 738 /******************************************************************
 739  *              _wsplitpath_s (MSVCRT.@)
 740  *
 741  * Secure version of _wsplitpath
 742  */
 743 int _wsplitpath_s(const MSVCRT_wchar_t* inpath,
 744                   MSVCRT_wchar_t* drive, MSVCRT_size_t sz_drive,
 745                   MSVCRT_wchar_t* dir, MSVCRT_size_t sz_dir,
 746                   MSVCRT_wchar_t* fname, MSVCRT_size_t sz_fname,
 747                   MSVCRT_wchar_t* ext, MSVCRT_size_t sz_ext)
 748 {
 749     const MSVCRT_wchar_t *p, *end;
 750
 751     if (!inpath) return MSVCRT_EINVAL;
 752     if (!drive && sz_drive) return MSVCRT_EINVAL;
 753     if (drive && !sz_drive) return MSVCRT_EINVAL;
 754     if (!dir && sz_dir) return MSVCRT_EINVAL;
 755     if (dir && !sz_dir) return MSVCRT_EINVAL;
 756     if (!fname && sz_fname) return MSVCRT_EINVAL;
 757     if (fname && !sz_fname) return MSVCRT_EINVAL;
 758     if (!ext && sz_ext) return MSVCRT_EINVAL;
 759     if (ext && !sz_ext) return MSVCRT_EINVAL;
 760
 761     if (inpath[0] && inpath[1] == ':')
 762     {
 763         if (drive)
 764         {
 765             if (sz_drive <= 2) goto do_error;
 766             drive[0] = inpath[0];
 767             drive[1] = inpath[1];
 768             drive[2] = 0;
 769         }
 770         inpath += 2;
 771     }
 772     else if (drive) drive[0] = '\0';
 773
 774     /* look for end of directory part */
 775     end = NULL;
 776     for (p = inpath; *p; p++) if (*p == '/' || *p == '\\') end = p + 1;
 777
 778     if (end)  /* got a directory */
 779     {
 780         if (dir)
 781         {
 782             if (sz_dir <= end - inpath) goto do_error;
 783             memcpy( dir, inpath, (end - inpath) * sizeof(MSVCRT_wchar_t) );
 784             dir[end - inpath] = 0;
 785         }
 786         inpath = end;
 787     }
 788     else if (dir) dir[0] = 0;
 789
 790     /* look for extension: what's after the last dot */
 791     end = NULL;
 792     for (p = inpath; *p; p++) if (*p == '.') end = p;
 793
 794     if (!end) end = p; /* there's no extension */
 795
 796     if (fname)
 797     {
 798         if (sz_fname <= end - inpath) goto do_error;
 799         memcpy( fname, inpath, (end - inpath) * sizeof(MSVCRT_wchar_t) );
 800         fname[end - inpath] = 0;
 801     }
 802     if (ext)
 803     {
 804         if (sz_ext <= strlenW(end)) goto do_error;
 805         strcpyW( ext, end );
 806     }
 807     return 0;
 808 do_error:
 809     if (drive)  drive[0] = '\0';
 810     if (dir)    dir[0] = '\0';
 811     if (fname)  fname[0]= '\0';
 812     if (ext)    ext[0]= '\0';
 813     return MSVCRT_ERANGE;
 814 }
 815
 816 /*********************************************************************
 817  *              _wfullpath (MSVCRT.@)
 818  *
 819  * Unicode version of _fullpath.
 820  */
 821 MSVCRT_wchar_t * CDECL _wfullpath(MSVCRT_wchar_t * absPath, const MSVCRT_wchar_t* relPath, MSVCRT_size_t size)
 822 {
 823   DWORD rc;
 824   WCHAR* buffer;
 825   WCHAR* lastpart;
 826   BOOL alloced = FALSE;
 827
 828   if (!relPath || !*relPath)
 829     return _wgetcwd(absPath, size);
 830
 831   if (absPath == NULL)
 832   {
 833       buffer = MSVCRT_malloc(MAX_PATH * sizeof(WCHAR));
 834       size = MAX_PATH;
 835       alloced = TRUE;
 836   }
 837   else
 838       buffer = absPath;
 839
 840   if (size < 4)
 841   {
 842     *MSVCRT__errno() = MSVCRT_ERANGE;
 843     return NULL;
 844   }
 845
 846   TRACE(":resolving relative path %s\n",debugstr_w(relPath));
 847
 848   rc = GetFullPathNameW(relPath,size,buffer,&lastpart);
 849
 850   if (rc > 0 && rc <= size )
 851     return buffer;
 852   else
 853   {
 854       if (alloced)
 855           MSVCRT_free(buffer);
 856         return NULL;
 857   }
 858 }
 859
 860 /*********************************************************************
 861  *              _fullpath (MSVCRT.@)
 862  *
 863  * Create an absolute path from a relative path.
 864  *
 865  * PARAMS
 866  *  absPath [O] Destination for absolute path
 867  *  relPath [I] Relative path to convert to absolute
 868  *  size    [I] Length of absPath in characters.
 869  *
 870  * RETURNS
 871  * Success: If absPath is NULL, returns an allocated string containing the path.
 872  *          Otherwise populates absPath with the path and returns it.
 873  * Failure: NULL. errno indicates the error.
 874  */
 875 char * CDECL _fullpath(char * absPath, const char* relPath, unsigned int size)
 876 {
 877   DWORD rc;
 878   char* lastpart;
 879   char* buffer;
 880   BOOL alloced = FALSE;
 881
 882   if (!relPath || !*relPath)
 883     return _getcwd(absPath, size);
 884
 885   if (absPath == NULL)
 886   {
 887       buffer = MSVCRT_malloc(MAX_PATH);
 888       size = MAX_PATH;
 889       alloced = TRUE;
 890   }
 891   else
 892       buffer = absPath;
 893
 894   if (size < 4)
 895   {
 896     *MSVCRT__errno() = MSVCRT_ERANGE;
 897     return NULL;
 898   }
 899
 900   TRACE(":resolving relative path '%s'\n",relPath);
 901
 902   rc = GetFullPathNameA(relPath,size,buffer,&lastpart);
 903
 904   if (rc > 0 && rc <= size)
 905     return buffer;
 906   else
 907   {
 908       if (alloced)
 909           MSVCRT_free(buffer);
 910         return NULL;
 911   }
 912 }
 913
 914 /*********************************************************************
 915  *              _makepath (MSVCRT.@)
 916  *
 917  * Create a pathname.
 918  *
 919  * PARAMS
 920  *  path      [O] Destination for created pathname
 921  *  drive     [I] Drive letter (e.g. "A:")
 922  *  directory [I] Directory
 923  *  filename  [I] Name of the file, excluding extension
 924  *  extension [I] File extension (e.g. ".TXT")
 925  *
 926  * RETURNS
 927  *  Nothing. If path is not large enough to hold the resulting pathname,
 928  *  random process memory will be overwritten.
 929  */
 930 VOID CDECL _makepath(char * path, const char * drive,
 931                      const char *directory, const char * filename,
 932                      const char * extension)
 933 {
 934     char *p = path;
 935
 936     TRACE("(%s %s %s %s)\n", debugstr_a(drive), debugstr_a(directory),
 937           debugstr_a(filename), debugstr_a(extension) );
 938
 939     if ( !path )
 940         return;
 941
 942     if (drive && drive[0])
 943     {
 944         *p++ = drive[0];
 945         *p++ = ':';
 946     }
 947     if (directory && directory[0])
 948     {
 949         unsigned int len = strlen(directory);
 950         memmove(p, directory, len);
 951         p += len;
 952         if (p[-1] != '/' && p[-1] != '\\')
 953             *p++ = '\\';
 954     }
 955     if (filename && filename[0])
 956     {
 957         unsigned int len = strlen(filename);
 958         memmove(p, filename, len);
 959         p += len;
 960     }
 961     if (extension && extension[0])
 962     {
 963         if (extension[0] != '.')
 964             *p++ = '.';
 965         strcpy(p, extension);
 966     }
 967     else
 968         *p = '\0';
 969     TRACE("returning %s\n",path);
 970 }
 971
 972 /*********************************************************************
 973  *              _wmakepath (MSVCRT.@)
 974  *
 975  * Unicode version of _wmakepath.
 976  */
 977 VOID CDECL _wmakepath(MSVCRT_wchar_t *path, const MSVCRT_wchar_t *drive, const MSVCRT_wchar_t *directory,
 978                       const MSVCRT_wchar_t *filename, const MSVCRT_wchar_t *extension)
 979 {
 980     MSVCRT_wchar_t *p = path;
 981
 982     TRACE("%s %s %s %s\n", debugstr_w(drive), debugstr_w(directory),
 983           debugstr_w(filename), debugstr_w(extension));
 984
 985     if ( !path )
 986         return;
 987
 988     if (drive && drive[0])
 989     {
 990         *p++ = drive[0];
 991         *p++ = ':';
 992     }
 993     if (directory && directory[0])
 994     {
 995         unsigned int len = strlenW(directory);
 996         memmove(p, directory, len * sizeof(MSVCRT_wchar_t));
 997         p += len;
 998         if (p[-1] != '/' && p[-1] != '\\')
 999             *p++ = '\\';
1000     }
1001     if (filename && filename[0])
1002     {
1003         unsigned int len = strlenW(filename);
1004         memmove(p, filename, len * sizeof(MSVCRT_wchar_t));
1005         p += len;
1006     }
1007     if (extension && extension[0])
1008     {
1009         if (extension[0] != '.')
1010             *p++ = '.';
1011         strcpyW(p, extension);
1012     }
1013     else
1014         *p = '\0';
1015
1016     TRACE("returning %s\n", debugstr_w(path));
1017 }
1018
1019 /*********************************************************************
1020  *              _searchenv (MSVCRT.@)
1021  *
1022  * Search for a file in a list of paths from an environment variable.
1023  *
1024  * PARAMS
1025  *  file   [I] Name of the file to search for.
1026  *  env    [I] Name of the environment variable containing a list of paths.
1027  *  buf    [O] Destination for the found file path.
1028  *
1029  * RETURNS
1030  *  Nothing. If the file is not found, buf will contain an empty string
1031  *  and errno is set.
1032  */
1033 void CDECL _searchenv(const char* file, const char* env, char *buf)
1034 {
1035   char*envVal, *penv;
1036   char curPath[MAX_PATH];
1037
1038   *buf = '\0';
1039
1040   /* Try CWD first */
1041   if (GetFileAttributesA( file ) != INVALID_FILE_ATTRIBUTES)
1042   {
1043     GetFullPathNameA( file, MAX_PATH, buf, NULL );
1044     /* Sigh. This error is *always* set, regardless of success */
1045     msvcrt_set_errno(ERROR_FILE_NOT_FOUND);
1046     return;
1047   }
1048
1049   /* Search given environment variable */
1050   envVal = MSVCRT_getenv(env);
1051   if (!envVal)
1052   {
1053     msvcrt_set_errno(ERROR_FILE_NOT_FOUND);
1054     return;
1055   }
1056
1057   penv = envVal;
1058   TRACE(":searching for %s in paths %s\n", file, envVal);
1059
1060   do
1061   {
1062     char *end = penv;
1063
1064     while(*end && *end != ';') end++; /* Find end of next path */
1065     if (penv == end || !*penv)
1066     {
1067       msvcrt_set_errno(ERROR_FILE_NOT_FOUND);
1068       return;
1069     }
1070     memcpy(curPath, penv, end - penv);
1071     if (curPath[end - penv] != '/' && curPath[end - penv] != '\\')
1072     {
1073       curPath[end - penv] = '\\';
1074       curPath[end - penv + 1] = '\0';
1075     }
1076     else
1077       curPath[end - penv] = '\0';
1078
1079     strcat(curPath, file);
1080     TRACE("Checking for file %s\n", curPath);
1081     if (GetFileAttributesA( curPath ) != INVALID_FILE_ATTRIBUTES)
1082     {
1083       strcpy(buf, curPath);
1084       msvcrt_set_errno(ERROR_FILE_NOT_FOUND);
1085       return; /* Found */
1086     }
1087     penv = *end ? end + 1 : end;
1088   } while(1);
1089 }
1090
1091 /*********************************************************************
1092  *      _wsearchenv (MSVCRT.@)
1093  *
1094  * Unicode version of _searchenv
1095  */
1096 void CDECL _wsearchenv(const MSVCRT_wchar_t* file, const MSVCRT_wchar_t* env, MSVCRT_wchar_t *buf)
1097 {
1098   MSVCRT_wchar_t *envVal, *penv;
1099   MSVCRT_wchar_t curPath[MAX_PATH];
1100
1101   *buf = '\0';
1102
1103   /* Try CWD first */
1104   if (GetFileAttributesW( file ) != INVALID_FILE_ATTRIBUTES)
1105   {
1106     GetFullPathNameW( file, MAX_PATH, buf, NULL );
1107     /* Sigh. This error is *always* set, regardless of success */
1108     msvcrt_set_errno(ERROR_FILE_NOT_FOUND);
1109     return;
1110   }
1111
1112   /* Search given environment variable */
1113   envVal = _wgetenv(env);
1114   if (!envVal)
1115   {
1116     msvcrt_set_errno(ERROR_FILE_NOT_FOUND);
1117     return;
1118   }
1119
1120   penv = envVal;
1121   TRACE(":searching for %s in paths %s\n", debugstr_w(file), debugstr_w(envVal));
1122
1123   do
1124   {
1125     MSVCRT_wchar_t *end = penv;
1126
1127     while(*end && *end != ';') end++; /* Find end of next path */
1128     if (penv == end || !*penv)
1129     {
1130       msvcrt_set_errno(ERROR_FILE_NOT_FOUND);
1131       return;
1132     }
1133     memcpy(curPath, penv, (end - penv) * sizeof(MSVCRT_wchar_t));
1134     if (curPath[end - penv] != '/' && curPath[end - penv] != '\\')
1135     {
1136       curPath[end - penv] = '\\';
1137       curPath[end - penv + 1] = '\0';
1138     }
1139     else
1140       curPath[end - penv] = '\0';
1141
1142     strcatW(curPath, file);
1143     TRACE("Checking for file %s\n", debugstr_w(curPath));
1144     if (GetFileAttributesW( curPath ) != INVALID_FILE_ATTRIBUTES)
1145     {
1146       strcpyW(buf, curPath);
1147       msvcrt_set_errno(ERROR_FILE_NOT_FOUND);
1148       return; /* Found */
1149     }
1150     penv = *end ? end + 1 : end;
1151   } while(1);
1152 }