files/directory.c

   1 /*
   2  * DOS directories functions
   3  *
   4  * Copyright 1995 Alexandre Julliard
   5  */
   6
   7 #include <ctype.h>
   8 #include <stdlib.h>
   9 #include <string.h>
  10 #include <sys/types.h>
  11 #include <sys/stat.h>
  12 #include <unistd.h>
  13 #include <errno.h>
  14 #ifdef HAVE_SYS_ERRNO_H
  15 #include <sys/errno.h>
  16 #endif
  17
  18 #include "winbase.h"
  19 #include "wine/winbase16.h"
  20 #include "wine/winestring.h"
  21 #include "wine/winuser16.h"
  22 #include "winerror.h"
  23 #include "process.h"
  24 #include "drive.h"
  25 #include "file.h"
  26 #include "heap.h"
  27 #include "msdos.h"
  28 #include "options.h"
  29 #include "debugtools.h"
  30
  31 DECLARE_DEBUG_CHANNEL(dosfs)
  32 DECLARE_DEBUG_CHANNEL(file)
  33
  34 static DOS_FULL_NAME DIR_Windows;
  35 static DOS_FULL_NAME DIR_System;
  36
  37
  38 /***********************************************************************
  39  *           DIR_GetPath
  40  *
  41  * Get a path name from the wine.ini file and make sure it is valid.
  42  */
  43 static int DIR_GetPath( const char *keyname, const char *defval,
  44                         DOS_FULL_NAME *full_name )
  45 {
  46     char path[MAX_PATHNAME_LEN];
  47     BY_HANDLE_FILE_INFORMATION info;
  48
  49     PROFILE_GetWineIniString( "wine", keyname, defval, path, sizeof(path) );
  50     if (!DOSFS_GetFullName( path, TRUE, full_name ) ||
  51         !FILE_Stat( full_name->long_name, &info ) ||
  52         !(info.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY))
  53     {
  54         MESSAGE("Invalid path '%s' for %s directory\n", path, keyname);
  55         return 0;
  56     }
  57     return 1;
  58 }
  59
  60
  61 /***********************************************************************
  62  *           DIR_Init
  63  */
  64 int DIR_Init(void)
  65 {
  66     char path[MAX_PATHNAME_LEN];
  67     DOS_FULL_NAME tmp_dir;
  68     int drive;
  69     const char *cwd;
  70
  71     if (!getcwd( path, MAX_PATHNAME_LEN ))
  72     {
  73         perror( "Could not get current directory" );
  74         return 0;
  75     }
  76     cwd = path;
  77     if ((drive = DRIVE_FindDriveRoot( &cwd )) == -1)
  78     {
  79         MESSAGE("Warning: could not find wine.conf [Drive x] entry "
  80             "for current working directory %s; "
  81             "starting in windows directory.\n", cwd );
  82     }
  83     else
  84     {
  85         DRIVE_SetCurrentDrive( drive );
  86         DRIVE_Chdir( drive, cwd );
  87     }
  88
  89     if (!(DIR_GetPath( "windows", "c:\\windows", &DIR_Windows )) ||
  90         !(DIR_GetPath( "system", "c:\\windows\\system", &DIR_System )) ||
  91         !(DIR_GetPath( "temp", "c:\\windows", &tmp_dir )))
  92     {
  93         PROFILE_UsageWineIni();
  94         return 0;
  95     }
  96     if (-1 == access( tmp_dir.long_name, W_OK ))
  97     {
  98         if (errno==EACCES)
  99         {
 100                 MESSAGE("Warning: The Temporary Directory (as specified in your configuration file) is NOT writeable.\n");
 101                 PROFILE_UsageWineIni();
 102         }
 103         else
 104                 MESSAGE("Warning: Access to Temporary Directory failed (%s).\n",
 105                     strerror(errno));
 106     }
 107
 108     if (drive == -1)
 109     {
 110         drive = DIR_Windows.drive;
 111         DRIVE_SetCurrentDrive( drive );
 112         DRIVE_Chdir( drive, DIR_Windows.short_name + 2 );
 113     }
 114
 115     PROFILE_GetWineIniString("wine", "path", "c:\\windows;c:\\windows\\system",
 116                              path, sizeof(path) );
 117
 118     /* Set the environment variables */
 119
 120     SetEnvironmentVariableA( "PATH", path );
 121     SetEnvironmentVariableA( "COMSPEC", "c:\\command.com" );
 122     SetEnvironmentVariableA( "TEMP", tmp_dir.short_name );
 123     SetEnvironmentVariableA( "windir", DIR_Windows.short_name );
 124     SetEnvironmentVariableA( "winsysdir", DIR_System.short_name );
 125
 126     TRACE_(dosfs)("WindowsDir = %s (%s)\n",
 127           DIR_Windows.short_name, DIR_Windows.long_name );
 128     TRACE_(dosfs)("SystemDir  = %s (%s)\n",
 129           DIR_System.short_name, DIR_System.long_name );
 130     TRACE_(dosfs)("TempDir    = %s (%s)\n",
 131           tmp_dir.short_name, tmp_dir.long_name );
 132     TRACE_(dosfs)("Path       = %s\n", path );
 133     TRACE_(dosfs)("Cwd        = %c:\\%s\n",
 134           'A' + drive, DRIVE_GetDosCwd( drive ) );
 135
 136     return 1;
 137 }
 138
 139
 140 /***********************************************************************
 141  *           GetTempPath32A   (KERNEL32.292)
 142  */
 143 UINT WINAPI GetTempPathA( UINT count, LPSTR path )
 144 {
 145     UINT ret;
 146     if (!(ret = GetEnvironmentVariableA( "TMP", path, count )))
 147         if (!(ret = GetEnvironmentVariableA( "TEMP", path, count )))
 148             if (!(ret = GetCurrentDirectoryA( count, path )))
 149                 return 0;
 150     if (count && (ret < count - 1) && (path[ret-1] != '\\'))
 151     {
 152         path[ret++] = '\\';
 153         path[ret]   = '\0';
 154     }
 155     return ret;
 156 }
 157
 158
 159 /***********************************************************************
 160  *           GetTempPath32W   (KERNEL32.293)
 161  */
 162 UINT WINAPI GetTempPathW( UINT count, LPWSTR path )
 163 {
 164     static const WCHAR tmp[]  = { 'T', 'M', 'P', 0 };
 165     static const WCHAR temp[] = { 'T', 'E', 'M', 'P', 0 };
 166     UINT ret;
 167     if (!(ret = GetEnvironmentVariableW( tmp, path, count )))
 168         if (!(ret = GetEnvironmentVariableW( temp, path, count )))
 169             if (!(ret = GetCurrentDirectoryW( count, path )))
 170                 return 0;
 171     if (count && (ret < count - 1) && (path[ret-1] != '\\'))
 172     {
 173         path[ret++] = '\\';
 174         path[ret]   = '\0';
 175     }
 176     return ret;
 177 }
 178
 179
 180 /***********************************************************************
 181  *           DIR_GetWindowsUnixDir
 182  */
 183 UINT DIR_GetWindowsUnixDir( LPSTR path, UINT count )
 184 {
 185     if (path) lstrcpynA( path, DIR_Windows.long_name, count );
 186     return strlen( DIR_Windows.long_name );
 187 }
 188
 189
 190 /***********************************************************************
 191  *           DIR_GetSystemUnixDir
 192  */
 193 UINT DIR_GetSystemUnixDir( LPSTR path, UINT count )
 194 {
 195     if (path) lstrcpynA( path, DIR_System.long_name, count );
 196     return strlen( DIR_System.long_name );
 197 }
 198
 199
 200 /***********************************************************************
 201  *           GetTempDrive   (KERNEL.92)
 202  */
 203 BYTE WINAPI GetTempDrive( BYTE ignored )
 204 {
 205     char *buffer;
 206     BYTE ret;
 207     UINT len = GetTempPathA( 0, NULL );
 208
 209     if (!(buffer = HeapAlloc( GetProcessHeap(), 0, len + 1 )) )
 210       return DRIVE_GetCurrentDrive() + 'A';
 211
 212     /* FIXME: apparently Windows does something with the ignored byte */
 213     if (!GetTempPathA( len, buffer )) buffer[0] = 'C';
 214     ret = buffer[0];
 215     HeapFree( GetProcessHeap(), 0, buffer );
 216     return toupper(ret);
 217 }
 218
 219
 220 UINT WINAPI WIN16_GetTempDrive( BYTE ignored )
 221 {
 222     /* A closer look at krnl386.exe shows what the SDK doesn't mention:
 223      *
 224      * returns:
 225      *   AL: driveletter
 226      *   AH: ':'                - yes, some kernel code even does stosw with
 227      *                            the returned AX.
 228      *   DX: 1 for success
 229      */
 230     return MAKELONG( GetTempDrive(ignored) | (':' << 8), 1 );
 231 }
 232
 233
 234 /***********************************************************************
 235  *           GetWindowsDirectory16   (KERNEL.134)
 236  */
 237 UINT16 WINAPI GetWindowsDirectory16( LPSTR path, UINT16 count )
 238 {
 239     return (UINT16)GetWindowsDirectoryA( path, count );
 240 }
 241
 242
 243 /***********************************************************************
 244  *           GetWindowsDirectory32A   (KERNEL32.311)
 245  */
 246 UINT WINAPI GetWindowsDirectoryA( LPSTR path, UINT count )
 247 {
 248     if (path) lstrcpynA( path, DIR_Windows.short_name, count );
 249     return strlen( DIR_Windows.short_name );
 250 }
 251
 252
 253 /***********************************************************************
 254  *           GetWindowsDirectory32W   (KERNEL32.312)
 255  */
 256 UINT WINAPI GetWindowsDirectoryW( LPWSTR path, UINT count )
 257 {
 258     if (path) lstrcpynAtoW( path, DIR_Windows.short_name, count );
 259     return strlen( DIR_Windows.short_name );
 260 }
 261
 262
 263 /***********************************************************************
 264  *           GetSystemDirectory16   (KERNEL.135)
 265  */
 266 UINT16 WINAPI GetSystemDirectory16( LPSTR path, UINT16 count )
 267 {
 268     return (UINT16)GetSystemDirectoryA( path, count );
 269 }
 270
 271
 272 /***********************************************************************
 273  *           GetSystemDirectory32A   (KERNEL32.282)
 274  */
 275 UINT WINAPI GetSystemDirectoryA( LPSTR path, UINT count )
 276 {
 277     if (path) lstrcpynA( path, DIR_System.short_name, count );
 278     return strlen( DIR_System.short_name );
 279 }
 280
 281
 282 /***********************************************************************
 283  *           GetSystemDirectory32W   (KERNEL32.283)
 284  */
 285 UINT WINAPI GetSystemDirectoryW( LPWSTR path, UINT count )
 286 {
 287     if (path) lstrcpynAtoW( path, DIR_System.short_name, count );
 288     return strlen( DIR_System.short_name );
 289 }
 290
 291
 292 /***********************************************************************
 293  *           CreateDirectory16   (KERNEL.144)
 294  */
 295 BOOL16 WINAPI CreateDirectory16( LPCSTR path, LPVOID dummy )
 296 {
 297     TRACE_(file)("(%s,%p)\n", path, dummy );
 298     return (BOOL16)CreateDirectoryA( path, NULL );
 299 }
 300
 301
 302 /***********************************************************************
 303  *           CreateDirectory32A   (KERNEL32.39)
 304  * RETURNS:
 305  *      TRUE : success
 306  *      FALSE : failure
 307  *              ERROR_DISK_FULL:        on full disk
 308  *              ERROR_ALREADY_EXISTS:   if directory name exists (even as file)
 309  *              ERROR_ACCESS_DENIED:    on permission problems
 310  *              ERROR_FILENAME_EXCED_RANGE: too long filename(s)
 311  */
 312 BOOL WINAPI CreateDirectoryA( LPCSTR path,
 313                                   LPSECURITY_ATTRIBUTES lpsecattribs )
 314 {
 315     DOS_FULL_NAME full_name;
 316
 317     TRACE_(file)("(%s,%p)\n", path, lpsecattribs );
 318     if (DOSFS_GetDevice( path ))
 319     {
 320         TRACE_(file)("cannot use device '%s'!\n",path);
 321         SetLastError( ERROR_ACCESS_DENIED );
 322         return FALSE;
 323     }
 324     if (!DOSFS_GetFullName( path, FALSE, &full_name )) return 0;
 325     if (mkdir( full_name.long_name, 0777 ) == -1) {
 326         WARN_(file)("Errno %i trying to create directory %s.\n", errno, full_name.long_name);
 327         /* the FILE_SetDosError() generated error codes don't match the
 328          * CreateDirectory ones for some errnos */
 329         switch (errno) {
 330         case EEXIST: SetLastError(ERROR_ALREADY_EXISTS); break;
 331         case ENOSPC: SetLastError(ERROR_DISK_FULL); break;
 332         default: FILE_SetDosError();break;
 333         }
 334         return FALSE;
 335     }
 336     return TRUE;
 337 }
 338
 339
 340 /***********************************************************************
 341  *           CreateDirectory32W   (KERNEL32.42)
 342  */
 343 BOOL WINAPI CreateDirectoryW( LPCWSTR path,
 344                                   LPSECURITY_ATTRIBUTES lpsecattribs )
 345 {
 346     LPSTR xpath = HEAP_strdupWtoA( GetProcessHeap(), 0, path );
 347     BOOL ret = CreateDirectoryA( xpath, lpsecattribs );
 348     HeapFree( GetProcessHeap(), 0, xpath );
 349     return ret;
 350 }
 351
 352
 353 /***********************************************************************
 354  *           CreateDirectoryEx32A   (KERNEL32.40)
 355  */
 356 BOOL WINAPI CreateDirectoryExA( LPCSTR template, LPCSTR path,
 357                                     LPSECURITY_ATTRIBUTES lpsecattribs)
 358 {
 359     return CreateDirectoryA(path,lpsecattribs);
 360 }
 361
 362
 363 /***********************************************************************
 364  *           CreateDirectoryEx32W   (KERNEL32.41)
 365  */
 366 BOOL WINAPI CreateDirectoryExW( LPCWSTR template, LPCWSTR path,
 367                                     LPSECURITY_ATTRIBUTES lpsecattribs)
 368 {
 369     return CreateDirectoryW(path,lpsecattribs);
 370 }
 371
 372
 373 /***********************************************************************
 374  *           RemoveDirectory16   (KERNEL)
 375  */
 376 BOOL16 WINAPI RemoveDirectory16( LPCSTR path )
 377 {
 378     return (BOOL16)RemoveDirectoryA( path );
 379 }
 380
 381
 382 /***********************************************************************
 383  *           RemoveDirectory32A   (KERNEL32.437)
 384  */
 385 BOOL WINAPI RemoveDirectoryA( LPCSTR path )
 386 {
 387     DOS_FULL_NAME full_name;
 388
 389     TRACE_(file)("'%s'\n", path );
 390
 391     if (DOSFS_GetDevice( path ))
 392     {
 393         TRACE_(file)("cannot remove device '%s'!\n", path);
 394         SetLastError( ERROR_FILE_NOT_FOUND );
 395         return FALSE;
 396     }
 397     if (!DOSFS_GetFullName( path, TRUE, &full_name )) return FALSE;
 398     if (rmdir( full_name.long_name ) == -1)
 399     {
 400         FILE_SetDosError();
 401         return FALSE;
 402     }
 403     return TRUE;
 404 }
 405
 406
 407 /***********************************************************************
 408  *           RemoveDirectory32W   (KERNEL32.438)
 409  */
 410 BOOL WINAPI RemoveDirectoryW( LPCWSTR path )
 411 {
 412     LPSTR xpath = HEAP_strdupWtoA( GetProcessHeap(), 0, path );
 413     BOOL ret = RemoveDirectoryA( xpath );
 414     HeapFree( GetProcessHeap(), 0, xpath );
 415     return ret;
 416 }
 417
 418
 419 /***********************************************************************
 420  *           DIR_TryPath
 421  *
 422  * Helper function for DIR_SearchPath.
 423  */
 424 static BOOL DIR_TryPath( const DOS_FULL_NAME *dir, LPCSTR name,
 425                            DOS_FULL_NAME *full_name )
 426 {
 427     LPSTR p_l = full_name->long_name + strlen(dir->long_name) + 1;
 428     LPSTR p_s = full_name->short_name + strlen(dir->short_name) + 1;
 429
 430     if ((p_s >= full_name->short_name + sizeof(full_name->short_name) - 14) ||
 431         (p_l >= full_name->long_name + sizeof(full_name->long_name) - 1))
 432     {
 433         SetLastError( ERROR_PATH_NOT_FOUND );
 434         return FALSE;
 435     }
 436     if (!DOSFS_FindUnixName( dir->long_name, name, p_l,
 437                    sizeof(full_name->long_name) - (p_l - full_name->long_name),
 438                    p_s, !(DRIVE_GetFlags(dir->drive) & DRIVE_CASE_SENSITIVE) ))
 439         return FALSE;
 440     strcpy( full_name->long_name, dir->long_name );
 441     p_l[-1] = '/';
 442     strcpy( full_name->short_name, dir->short_name );
 443     p_s[-1] = '\\';
 444     return TRUE;
 445 }
 446
 447
 448 /***********************************************************************
 449  *           DIR_TryEnvironmentPath
 450  *
 451  * Helper function for DIR_SearchPath.
 452  */
 453 static BOOL DIR_TryEnvironmentPath( LPCSTR name, DOS_FULL_NAME *full_name )
 454 {
 455     LPSTR path, next, buffer;
 456     BOOL ret = FALSE;
 457     INT len = strlen(name);
 458     DWORD size = GetEnvironmentVariableA( "PATH", NULL, 0 );
 459
 460     if (!size) return FALSE;
 461     if (!(path = HeapAlloc( GetProcessHeap(), 0, size ))) return FALSE;
 462     if (!GetEnvironmentVariableA( "PATH", path, size )) goto done;
 463     next = path;
 464     while (!ret && next)
 465     {
 466         LPSTR cur = next;
 467         while (*cur == ';') cur++;
 468         if (!*cur) break;
 469         next = strchr( cur, ';' );
 470         if (next) *next++ = '\0';
 471         if (!(buffer = HeapAlloc( GetProcessHeap(), 0, strlen(cur) + len + 2)))
 472             goto done;
 473         strcpy( buffer, cur );
 474         strcat( buffer, "\\" );
 475         strcat( buffer, name );
 476         ret = DOSFS_GetFullName( buffer, TRUE, full_name );
 477         HeapFree( GetProcessHeap(), 0, buffer );
 478     }
 479
 480 done:
 481     HeapFree( GetProcessHeap(), 0, path );
 482     return ret;
 483 }
 484
 485
 486 /***********************************************************************
 487  *           DIR_TryModulePath
 488  *
 489  * Helper function for DIR_SearchPath.
 490  */
 491 static BOOL DIR_TryModulePath( LPCSTR name, DOS_FULL_NAME *full_name )
 492 {
 493     PDB *pdb = PROCESS_Current();
 494
 495     /* FIXME: for now, GetModuleFileName32A can't return more */
 496     /* than OFS_MAXPATHNAME. This may change with Win32. */
 497
 498     char buffer[OFS_MAXPATHNAME];
 499     LPSTR p;
 500
 501     if (pdb->flags & PDB32_WIN16_PROC) {
 502         if (!GetCurrentTask()) return FALSE;
 503         if (!GetModuleFileName16( GetCurrentTask(), buffer, sizeof(buffer) ))
 504                 buffer[0]='\0';
 505     } else {
 506         if (!GetModuleFileNameA( 0, buffer, sizeof(buffer) ))
 507                 buffer[0]='\0';
 508     }
 509     if (!(p = strrchr( buffer, '\\' ))) return FALSE;
 510     if (sizeof(buffer) - (++p - buffer) <= strlen(name)) return FALSE;
 511     strcpy( p, name );
 512     return DOSFS_GetFullName( buffer, TRUE, full_name );
 513 }
 514
 515
 516 /***********************************************************************
 517  *           DIR_SearchPath
 518  *
 519  * Implementation of SearchPath32A. 'win32' specifies whether the search
 520  * order is Win16 (module path last) or Win32 (module path first).
 521  *
 522  * FIXME: should return long path names.
 523  */
 524 DWORD DIR_SearchPath( LPCSTR path, LPCSTR name, LPCSTR ext,
 525                       DOS_FULL_NAME *full_name, BOOL win32 )
 526 {
 527     DWORD len;
 528     LPCSTR p;
 529     LPSTR tmp = NULL;
 530     BOOL ret = TRUE;
 531
 532     /* First check the supplied parameters */
 533
 534     p = strrchr( name, '.' );
 535     if (p && !strchr( p, '/' ) && !strchr( p, '\\' ))
 536         ext = NULL;  /* Ignore the specified extension */
 537     if ((*name && (name[1] == ':')) ||
 538         strchr( name, '/' ) || strchr( name, '\\' ))
 539         path = NULL;  /* Ignore path if name already contains a path */
 540     if (path && !*path) path = NULL;  /* Ignore empty path */
 541
 542     len = strlen(name);
 543     if (ext) len += strlen(ext);
 544     if (path) len += strlen(path) + 1;
 545
 546     /* Allocate a buffer for the file name and extension */
 547
 548     if (path || ext)
 549     {
 550         if (!(tmp = HeapAlloc( GetProcessHeap(), 0, len + 1 )))
 551         {
 552             SetLastError( ERROR_OUTOFMEMORY );
 553             return 0;
 554         }
 555         if (path)
 556         {
 557             strcpy( tmp, path );
 558             strcat( tmp, "\\" );
 559             strcat( tmp, name );
 560         }
 561         else strcpy( tmp, name );
 562         if (ext) strcat( tmp, ext );
 563         name = tmp;
 564     }
 565
 566     /* If we have an explicit path, everything's easy */
 567
 568     if (path || (*name && (name[1] == ':')) ||
 569         strchr( name, '/' ) || strchr( name, '\\' ))
 570     {
 571         ret = DOSFS_GetFullName( name, TRUE, full_name );
 572         goto done;
 573     }
 574
 575     /* Try the path of the current executable (for Win32 search order) */
 576
 577     if (win32 && DIR_TryModulePath( name, full_name )) goto done;
 578
 579     /* Try the current directory */
 580
 581     if (DOSFS_GetFullName( name, TRUE, full_name )) goto done;
 582
 583     /* Try the Windows system directory */
 584
 585     if (DIR_TryPath( &DIR_System, name, full_name ))
 586         goto done;
 587
 588     /* Try the Windows directory */
 589
 590     if (DIR_TryPath( &DIR_Windows, name, full_name ))
 591         goto done;
 592
 593     /* Try the path of the current executable (for Win16 search order) */
 594
 595     if (!win32 && DIR_TryModulePath( name, full_name )) goto done;
 596
 597     /* Try all directories in path */
 598
 599     ret = DIR_TryEnvironmentPath( name, full_name );
 600
 601 done:
 602     if (tmp) HeapFree( GetProcessHeap(), 0, tmp );
 603     return ret;
 604 }
 605
 606
 607 /***********************************************************************
 608  * SearchPath32A [KERNEL32.447]
 609  *
 610  * Searches for a specified file in the search path.
 611  *
 612  * PARAMS
 613  *    path      [I] Path to search
 614  *    name      [I] Filename to search for.
 615  *    ext       [I] File extension to append to file name. The first
 616  *                  character must be a period. This parameter is
 617  *                  specified only if the filename given does not
 618  *                  contain an extension.
 619  *    buflen    [I] size of buffer, in characters
 620  *    buffer    [O] buffer for found filename
 621  *    lastpart  [O] address of pointer to last used character in
 622  *                  buffer (the final '\')
 623  *
 624  * RETURNS
 625  *    Success: length of string copied into buffer, not including
 626  *             terminating null character. If the filename found is
 627  *             longer than the length of the buffer, the length of the
 628  *             filename is returned.
 629  *    Failure: Zero
 630  *
 631  * NOTES
 632  *    Should call SetLastError(but currently doesn't).
 633  */
 634 DWORD WINAPI SearchPathA( LPCSTR path, LPCSTR name, LPCSTR ext, DWORD buflen,
 635                             LPSTR buffer, LPSTR *lastpart )
 636 {
 637     LPSTR p, res;
 638     DOS_FULL_NAME full_name;
 639
 640     if (!DIR_SearchPath( path, name, ext, &full_name, TRUE )) return 0;
 641     lstrcpynA( buffer, full_name.short_name, buflen );
 642     res = full_name.long_name +
 643               strlen(DRIVE_GetRoot( full_name.short_name[0] - 'A' ));
 644     while (*res == '/') res++;
 645     if (buflen)
 646     {
 647         if (buflen > 3) lstrcpynA( buffer + 3, res, buflen - 3 );
 648         for (p = buffer; *p; p++) if (*p == '/') *p = '\\';
 649         if (lastpart) *lastpart = strrchr( buffer, '\\' ) + 1;
 650     }
 651     TRACE_(dosfs)("Returning %d\n", strlen(res) + 3 );
 652     return strlen(res) + 3;
 653 }
 654
 655
 656 /***********************************************************************
 657  *           SearchPath32W   (KERNEL32.448)
 658  */
 659 DWORD WINAPI SearchPathW( LPCWSTR path, LPCWSTR name, LPCWSTR ext,
 660                             DWORD buflen, LPWSTR buffer, LPWSTR *lastpart )
 661 {
 662     LPWSTR p;
 663     LPSTR res;
 664     DOS_FULL_NAME full_name;
 665
 666     LPSTR pathA = HEAP_strdupWtoA( GetProcessHeap(), 0, path );
 667     LPSTR nameA = HEAP_strdupWtoA( GetProcessHeap(), 0, name );
 668     LPSTR extA  = HEAP_strdupWtoA( GetProcessHeap(), 0, ext );
 669     DWORD ret = DIR_SearchPath( pathA, nameA, extA, &full_name, TRUE );
 670     HeapFree( GetProcessHeap(), 0, extA );
 671     HeapFree( GetProcessHeap(), 0, nameA );
 672     HeapFree( GetProcessHeap(), 0, pathA );
 673     if (!ret) return 0;
 674
 675     lstrcpynAtoW( buffer, full_name.short_name, buflen );
 676     res = full_name.long_name +
 677               strlen(DRIVE_GetRoot( full_name.short_name[0] - 'A' ));
 678     while (*res == '/') res++;
 679     if (buflen)
 680     {
 681         if (buflen > 3) lstrcpynAtoW( buffer + 3, res, buflen - 3 );
 682         for (p = buffer; *p; p++) if (*p == '/') *p = '\\';
 683         if (lastpart)
 684         {
 685             for (p = *lastpart = buffer; *p; p++)
 686                 if (*p == '\\') *lastpart = p + 1;
 687         }
 688     }
 689     return strlen(res) + 3;
 690 }
 691
 692