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  *              _wfullpath (MSVCRT.@)
 740  *
 741  * Unicode version of _fullpath.
 742  */
 743 MSVCRT_wchar_t * CDECL _wfullpath(MSVCRT_wchar_t * absPath, const MSVCRT_wchar_t* relPath, MSVCRT_size_t size)
 744 {
 745   DWORD rc;
 746   WCHAR* buffer;
 747   WCHAR* lastpart;
 748   BOOL alloced = FALSE;
 749
 750   if (!relPath || !*relPath)
 751     return _wgetcwd(absPath, size);
 752
 753   if (absPath == NULL)
 754   {
 755       buffer = MSVCRT_malloc(MAX_PATH * sizeof(WCHAR));
 756       size = MAX_PATH;
 757       alloced = TRUE;
 758   }
 759   else
 760       buffer = absPath;
 761
 762   if (size < 4)
 763   {
 764     *MSVCRT__errno() = MSVCRT_ERANGE;
 765     return NULL;
 766   }
 767
 768   TRACE(":resolving relative path %s\n",debugstr_w(relPath));
 769
 770   rc = GetFullPathNameW(relPath,size,buffer,&lastpart);
 771
 772   if (rc > 0 && rc <= size )
 773     return buffer;
 774   else
 775   {
 776       if (alloced)
 777           MSVCRT_free(buffer);
 778         return NULL;
 779   }
 780 }
 781
 782 /*********************************************************************
 783  *              _fullpath (MSVCRT.@)
 784  *
 785  * Create an absolute path from a relative path.
 786  *
 787  * PARAMS
 788  *  absPath [O] Destination for absolute path
 789  *  relPath [I] Relative path to convert to absolute
 790  *  size    [I] Length of absPath in characters.
 791  *
 792  * RETURNS
 793  * Success: If absPath is NULL, returns an allocated string containing the path.
 794  *          Otherwise populates absPath with the path and returns it.
 795  * Failure: NULL. errno indicates the error.
 796  */
 797 char * CDECL _fullpath(char * absPath, const char* relPath, unsigned int size)
 798 {
 799   DWORD rc;
 800   char* lastpart;
 801   char* buffer;
 802   BOOL alloced = FALSE;
 803
 804   if (!relPath || !*relPath)
 805     return _getcwd(absPath, size);
 806
 807   if (absPath == NULL)
 808   {
 809       buffer = MSVCRT_malloc(MAX_PATH);
 810       size = MAX_PATH;
 811       alloced = TRUE;
 812   }
 813   else
 814       buffer = absPath;
 815
 816   if (size < 4)
 817   {
 818     *MSVCRT__errno() = MSVCRT_ERANGE;
 819     return NULL;
 820   }
 821
 822   TRACE(":resolving relative path '%s'\n",relPath);
 823
 824   rc = GetFullPathNameA(relPath,size,buffer,&lastpart);
 825
 826   if (rc > 0 && rc <= size)
 827     return buffer;
 828   else
 829   {
 830       if (alloced)
 831           MSVCRT_free(buffer);
 832         return NULL;
 833   }
 834 }
 835
 836 /*********************************************************************
 837  *              _makepath (MSVCRT.@)
 838  *
 839  * Create a pathname.
 840  *
 841  * PARAMS
 842  *  path      [O] Destination for created pathname
 843  *  drive     [I] Drive letter (e.g. "A:")
 844  *  directory [I] Directory
 845  *  filename  [I] Name of the file, excluding extension
 846  *  extension [I] File extension (e.g. ".TXT")
 847  *
 848  * RETURNS
 849  *  Nothing. If path is not large enough to hold the resulting pathname,
 850  *  random process memory will be overwritten.
 851  */
 852 VOID CDECL _makepath(char * path, const char * drive,
 853                      const char *directory, const char * filename,
 854                      const char * extension)
 855 {
 856     char *p = path;
 857
 858     TRACE("(%s %s %s %s)\n", debugstr_a(drive), debugstr_a(directory),
 859           debugstr_a(filename), debugstr_a(extension) );
 860
 861     if ( !path )
 862         return;
 863
 864     if (drive && drive[0])
 865     {
 866         *p++ = drive[0];
 867         *p++ = ':';
 868         *p = 0;
 869     }
 870     if (directory && directory[0])
 871     {
 872         strcpy(p, directory);
 873         p += strlen(directory) - 1;
 874         if (*p != '/' && *p != '\\') {
 875             strcat(p, "\\");
 876             p++;
 877         }
 878         p++;
 879     }
 880     if (filename && filename[0])
 881     {
 882         strcpy(p, filename);
 883         if (extension && extension[0])
 884         {
 885             if ( extension[0] != '.' )
 886                 strcat(p,".");
 887             strcat(p,extension);
 888         }
 889     }
 890     TRACE("returning %s\n",path);
 891 }
 892
 893 /*********************************************************************
 894  *              _wmakepath (MSVCRT.@)
 895  *
 896  * Unicode version of _wmakepath.
 897  */
 898 VOID CDECL _wmakepath(MSVCRT_wchar_t *path, const MSVCRT_wchar_t *drive, const MSVCRT_wchar_t *directory,
 899                       const MSVCRT_wchar_t *filename, const MSVCRT_wchar_t *extension)
 900 {
 901     MSVCRT_wchar_t ch;
 902     TRACE("%s %s %s %s\n", debugstr_w(drive), debugstr_w(directory),
 903           debugstr_w(filename), debugstr_w(extension));
 904
 905     if ( !path )
 906         return;
 907
 908     path[0] = 0;
 909     if (drive && drive[0])
 910     {
 911         path[0] = drive[0];
 912         path[1] = ':';
 913         path[2] = 0;
 914     }
 915     if (directory && directory[0])
 916     {
 917         strcatW(path, directory);
 918         ch = path[strlenW(path) - 1];
 919         if (ch != '/' && ch != '\\')
 920         {
 921             static const MSVCRT_wchar_t backslashW[] = {'\\',0};
 922             strcatW(path, backslashW);
 923         }
 924     }
 925     if (filename && filename[0])
 926     {
 927         strcatW(path, filename);
 928         if (extension && extension[0])
 929         {
 930             if ( extension[0] != '.' )
 931             {
 932                 static const MSVCRT_wchar_t dotW[] = {'.',0};
 933                 strcatW(path, dotW);
 934             }
 935             strcatW(path, extension);
 936         }
 937     }
 938
 939     TRACE("returning %s\n", debugstr_w(path));
 940 }
 941
 942 /*********************************************************************
 943  *              _searchenv (MSVCRT.@)
 944  *
 945  * Search for a file in a list of paths from an environment variable.
 946  *
 947  * PARAMS
 948  *  file   [I] Name of the file to search for.
 949  *  env    [I] Name of the environment variable containing a list of paths.
 950  *  buf    [O] Destination for the found file path.
 951  *
 952  * RETURNS
 953  *  Nothing. If the file is not found, buf will contain an empty string
 954  *  and errno is set.
 955  */
 956 void CDECL _searchenv(const char* file, const char* env, char *buf)
 957 {
 958   char*envVal, *penv;
 959   char curPath[MAX_PATH];
 960
 961   *buf = '\0';
 962
 963   /* Try CWD first */
 964   if (GetFileAttributesA( file ) != INVALID_FILE_ATTRIBUTES)
 965   {
 966     GetFullPathNameA( file, MAX_PATH, buf, NULL );
 967     /* Sigh. This error is *always* set, regardless of success */
 968     msvcrt_set_errno(ERROR_FILE_NOT_FOUND);
 969     return;
 970   }
 971
 972   /* Search given environment variable */
 973   envVal = MSVCRT_getenv(env);
 974   if (!envVal)
 975   {
 976     msvcrt_set_errno(ERROR_FILE_NOT_FOUND);
 977     return;
 978   }
 979
 980   penv = envVal;
 981   TRACE(":searching for %s in paths %s\n", file, envVal);
 982
 983   do
 984   {
 985     char *end = penv;
 986
 987     while(*end && *end != ';') end++; /* Find end of next path */
 988     if (penv == end || !*penv)
 989     {
 990       msvcrt_set_errno(ERROR_FILE_NOT_FOUND);
 991       return;
 992     }
 993     memcpy(curPath, penv, end - penv);
 994     if (curPath[end - penv] != '/' || curPath[end - penv] != '\\')
 995     {
 996       curPath[end - penv] = '\\';
 997       curPath[end - penv + 1] = '\0';
 998     }
 999     else
1000       curPath[end - penv] = '\0';
1001
1002     strcat(curPath, file);
1003     TRACE("Checking for file %s\n", curPath);
1004     if (GetFileAttributesA( curPath ) != INVALID_FILE_ATTRIBUTES)
1005     {
1006       strcpy(buf, curPath);
1007       msvcrt_set_errno(ERROR_FILE_NOT_FOUND);
1008       return; /* Found */
1009     }
1010     penv = *end ? end + 1 : end;
1011   } while(1);
1012 }
1013
1014 /*********************************************************************
1015  *      _wsearchenv (MSVCRT.@)
1016  *
1017  * Unicode version of _searchenv
1018  */
1019 void CDECL _wsearchenv(const MSVCRT_wchar_t* file, const MSVCRT_wchar_t* env, MSVCRT_wchar_t *buf)
1020 {
1021   MSVCRT_wchar_t *envVal, *penv;
1022   MSVCRT_wchar_t curPath[MAX_PATH];
1023
1024   *buf = '\0';
1025
1026   /* Try CWD first */
1027   if (GetFileAttributesW( file ) != INVALID_FILE_ATTRIBUTES)
1028   {
1029     GetFullPathNameW( file, MAX_PATH, buf, NULL );
1030     /* Sigh. This error is *always* set, regardless of success */
1031     msvcrt_set_errno(ERROR_FILE_NOT_FOUND);
1032     return;
1033   }
1034
1035   /* Search given environment variable */
1036   envVal = _wgetenv(env);
1037   if (!envVal)
1038   {
1039     msvcrt_set_errno(ERROR_FILE_NOT_FOUND);
1040     return;
1041   }
1042
1043   penv = envVal;
1044   TRACE(":searching for %s in paths %s\n", debugstr_w(file), debugstr_w(envVal));
1045
1046   do
1047   {
1048     MSVCRT_wchar_t *end = penv;
1049
1050     while(*end && *end != ';') end++; /* Find end of next path */
1051     if (penv == end || !*penv)
1052     {
1053       msvcrt_set_errno(ERROR_FILE_NOT_FOUND);
1054       return;
1055     }
1056     memcpy(curPath, penv, (end - penv) * sizeof(MSVCRT_wchar_t));
1057     if (curPath[end - penv] != '/' || curPath[end - penv] != '\\')
1058     {
1059       curPath[end - penv] = '\\';
1060       curPath[end - penv + 1] = '\0';
1061     }
1062     else
1063       curPath[end - penv] = '\0';
1064
1065     strcatW(curPath, file);
1066     TRACE("Checking for file %s\n", debugstr_w(curPath));
1067     if (GetFileAttributesW( curPath ) != INVALID_FILE_ATTRIBUTES)
1068     {
1069       strcpyW(buf, curPath);
1070       msvcrt_set_errno(ERROR_FILE_NOT_FOUND);
1071       return; /* Found */
1072     }
1073     penv = *end ? end + 1 : end;
1074   } while(1);
1075 }