files/directory.c

   1 /*
   2  * DOS directories functions
   3  *
   4  * Copyright 1995 Alexandre Julliard
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include "config.h"
  22
  23 #include <ctype.h>
  24 #include <stdlib.h>
  25 #include <stdio.h>
  26 #include <string.h>
  27 #include <sys/types.h>
  28 #include <sys/stat.h>
  29 #ifdef HAVE_UNISTD_H
  30 # include <unistd.h>
  31 #endif
  32 #include <errno.h>
  33 #ifdef HAVE_SYS_ERRNO_H
  34 #include <sys/errno.h>
  35 #endif
  36
  37 #include "winbase.h"
  38 #include "wine/winbase16.h"
  39 #include "windef.h"
  40 #include "wingdi.h"
  41 #include "wine/winuser16.h"
  42 #include "winerror.h"
  43 #include "winternl.h"
  44 #include "wine/unicode.h"
  45 #include "drive.h"
  46 #include "file.h"
  47 #include "msdos.h"
  48 #include "wine/debug.h"
  49
  50 WINE_DEFAULT_DEBUG_CHANNEL(dosfs);
  51 WINE_DECLARE_DEBUG_CHANNEL(file);
  52
  53 static DOS_FULL_NAME DIR_Windows;
  54 static DOS_FULL_NAME DIR_System;
  55
  56 static const WCHAR wineW[] = {'w','i','n','e',0};
  57
  58 /***********************************************************************
  59  *           FILE_contains_pathW
  60  */
  61 inline static int FILE_contains_pathW (LPCWSTR name)
  62 {
  63     return ((*name && (name[1] == ':')) ||
  64             strchrW (name, '/') || strchrW (name, '\\'));
  65 }
  66
  67 /***********************************************************************
  68  *           DIR_GetPath
  69  *
  70  * Get a path name from the wine.ini file and make sure it is valid.
  71  */
  72 static int DIR_GetPath( LPCWSTR keyname, LPCWSTR defval, DOS_FULL_NAME *full_name,
  73                         LPWSTR longname, INT longname_len, BOOL warn )
  74 {
  75     WCHAR path[MAX_PATHNAME_LEN];
  76     BY_HANDLE_FILE_INFORMATION info;
  77     const char *mess = "does not exist";
  78
  79     PROFILE_GetWineIniString( wineW, keyname, defval, path, MAX_PATHNAME_LEN );
  80
  81     if (!DOSFS_GetFullName( path, TRUE, full_name ) ||
  82         (!FILE_Stat( full_name->long_name, &info, NULL ) && (mess=strerror(errno)))||
  83         (!(info.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) && (mess="not a directory")) ||
  84         (!(GetLongPathNameW(full_name->short_name, longname, longname_len))) )
  85     {
  86         if (warn)
  87             MESSAGE("Invalid path %s for %s directory: %s\n",
  88                     debugstr_w(path), debugstr_w(keyname), mess);
  89         return 0;
  90     }
  91     return 1;
  92 }
  93
  94
  95 /***********************************************************************
  96  *           DIR_Init
  97  */
  98 int DIR_Init(void)
  99 {
 100     char path[MAX_PATHNAME_LEN];
 101     WCHAR longpath[MAX_PATHNAME_LEN];
 102     DOS_FULL_NAME tmp_dir, profile_dir;
 103     int drive;
 104     const char *cwd;
 105     static const WCHAR windowsW[] = {'w','i','n','d','o','w','s',0};
 106     static const WCHAR systemW[] = {'s','y','s','t','e','m',0};
 107     static const WCHAR tempW[] = {'t','e','m','p',0};
 108     static const WCHAR profileW[] = {'p','r','o','f','i','l','e',0};
 109     static const WCHAR windows_dirW[] = {'c',':','\\','w','i','n','d','o','w','s',0};
 110     static const WCHAR system_dirW[] = {'c',':','\\','w','i','n','d','o','w','s','\\','s','y','s','t','e','m',0};
 111     static const WCHAR pathW[] = {'p','a','t','h',0};
 112     static const WCHAR path_dirW[] = {'c',':','\\','w','i','n','d','o','w','s',';',
 113                                       'c',':','\\','w','i','n','d','o','w','s','\\','s','y','s','t','e','m',0};
 114     static const WCHAR path_capsW[] = {'P','A','T','H',0};
 115     static const WCHAR temp_capsW[] = {'T','E','M','P',0};
 116     static const WCHAR tmp_capsW[] = {'T','M','P',0};
 117     static const WCHAR windirW[] = {'w','i','n','d','i','r',0};
 118     static const WCHAR winsysdirW[] = {'w','i','n','s','y','s','d','i','r',0};
 119     static const WCHAR userprofileW[] = {'U','S','E','R','P','R','O','F','I','L','E',0};
 120     static const WCHAR systemrootW[] = {'S','Y','S','T','E','M','R','O','O','T',0};
 121     static const WCHAR wcmdW[] = {'\\','w','c','m','d','.','e','x','e',0};
 122     static const WCHAR comspecW[] = {'C','O','M','S','P','E','C',0};
 123     static const WCHAR empty_strW[] = { 0 };
 124
 125     if (!getcwd( path, MAX_PATHNAME_LEN ))
 126     {
 127         perror( "Could not get current directory" );
 128         return 0;
 129     }
 130     cwd = path;
 131     if ((drive = DRIVE_FindDriveRoot( &cwd )) == -1)
 132     {
 133         MESSAGE("Warning: could not find wine config [Drive x] entry "
 134             "for current working directory %s; "
 135             "starting in windows directory.\n", cwd );
 136     }
 137     else
 138     {
 139         WCHAR szdrive[3]={drive+'A',':',0};
 140         MultiByteToWideChar(DRIVE_GetCodepage(drive), 0, cwd, -1, longpath, MAX_PATHNAME_LEN);
 141         DRIVE_SetCurrentDrive( drive );
 142         DRIVE_Chdir( drive, longpath );
 143         if(GetDriveTypeW(szdrive)==DRIVE_CDROM)
 144             chdir("/"); /* change to root directory so as not to lock cdroms */
 145     }
 146
 147     if (!(DIR_GetPath( windowsW, windows_dirW, &DIR_Windows, longpath, MAX_PATHNAME_LEN, TRUE )) ||
 148         !(DIR_GetPath( systemW, system_dirW, &DIR_System, longpath, MAX_PATHNAME_LEN, TRUE )) ||
 149         !(DIR_GetPath( tempW, windows_dirW, &tmp_dir, longpath, MAX_PATHNAME_LEN, TRUE )))
 150     {
 151         PROFILE_UsageWineIni();
 152         return 0;
 153     }
 154     if (-1 == access( tmp_dir.long_name, W_OK ))
 155     {
 156         if (errno==EACCES)
 157         {
 158                 MESSAGE("Warning: the temporary directory '%s' (specified in wine configuration file) is not writeable.\n", tmp_dir.long_name);
 159                 PROFILE_UsageWineIni();
 160         }
 161         else
 162                 MESSAGE("Warning: access to temporary directory '%s' failed (%s).\n",
 163                     tmp_dir.long_name, strerror(errno));
 164     }
 165
 166     if (drive == -1)
 167     {
 168         drive = DIR_Windows.drive;
 169         DRIVE_SetCurrentDrive( drive );
 170         DRIVE_Chdir( drive, DIR_Windows.short_name + 2 );
 171     }
 172
 173     /* Set the environment variables */
 174
 175     /* set COMSPEC only if it doesn't exist already */
 176     if (!GetEnvironmentVariableW( comspecW, NULL, 0 ))
 177     {
 178         strcpyW( longpath, DIR_System.short_name );
 179         strcatW( longpath, wcmdW );
 180         SetEnvironmentVariableW( comspecW, longpath );
 181     }
 182
 183     /* set PATH only if not set already */
 184     if (!GetEnvironmentVariableW( path_capsW, longpath, MAX_PATHNAME_LEN ))
 185     {
 186         PROFILE_GetWineIniString(wineW, pathW, path_dirW, longpath, MAX_PATHNAME_LEN);
 187         if (strchrW(longpath, '/'))
 188         {
 189             MESSAGE("Fix your wine config to use DOS drive syntax in [wine] 'Path=' statement! (no '/' allowed)\n");
 190             PROFILE_UsageWineIni();
 191             ExitProcess(1);
 192         }
 193         SetEnvironmentVariableW( path_capsW, longpath );
 194     }
 195
 196     SetEnvironmentVariableW( temp_capsW, tmp_dir.short_name );
 197     SetEnvironmentVariableW( tmp_capsW, tmp_dir.short_name );
 198     SetEnvironmentVariableW( windirW, DIR_Windows.short_name );
 199     SetEnvironmentVariableW( winsysdirW, DIR_System.short_name );
 200
 201     TRACE("WindowsDir = %s (%s)\n",
 202           debugstr_w(DIR_Windows.short_name), DIR_Windows.long_name );
 203     TRACE("SystemDir  = %s (%s)\n",
 204           debugstr_w(DIR_System.short_name), DIR_System.long_name );
 205     TRACE("TempDir    = %s (%s)\n",
 206           debugstr_w(tmp_dir.short_name), tmp_dir.long_name );
 207     TRACE("Path       = %s\n", debugstr_w(longpath) );
 208     TRACE("Cwd        = %c:\\%s\n",
 209           'A' + drive, debugstr_w(DRIVE_GetDosCwd(drive)) );
 210
 211     if (DIR_GetPath( profileW, empty_strW, &profile_dir, longpath, MAX_PATHNAME_LEN, FALSE ))
 212     {
 213         TRACE("USERPROFILE= %s\n", debugstr_w(longpath) );
 214         SetEnvironmentVariableW( userprofileW, longpath );
 215     }
 216
 217     TRACE("SYSTEMROOT = %s\n", debugstr_w(DIR_Windows.short_name) );
 218     SetEnvironmentVariableW( systemrootW, DIR_Windows.short_name );
 219
 220     return 1;
 221 }
 222
 223
 224 /***********************************************************************
 225  *           GetTempPathA   (KERNEL32.@)
 226  */
 227 UINT WINAPI GetTempPathA( UINT count, LPSTR path )
 228 {
 229     WCHAR pathW[MAX_PATH];
 230     UINT ret;
 231
 232     ret = GetTempPathW(MAX_PATH, pathW);
 233
 234     if (!ret)
 235         return 0;
 236
 237     if (ret > MAX_PATH)
 238     {
 239         SetLastError(ERROR_FILENAME_EXCED_RANGE);
 240         return 0;
 241     }
 242
 243     ret = WideCharToMultiByte(CP_ACP, 0, pathW, -1, NULL, 0, NULL, NULL);
 244     if (ret <= count)
 245     {
 246         WideCharToMultiByte(CP_ACP, 0, pathW, -1, path, count, NULL, NULL);
 247         ret--; /* length without 0 */
 248     }
 249     return ret;
 250 }
 251
 252
 253 /***********************************************************************
 254  *           GetTempPathW   (KERNEL32.@)
 255  */
 256 UINT WINAPI GetTempPathW( UINT count, LPWSTR path )
 257 {
 258     static const WCHAR tmp[]  = { 'T', 'M', 'P', 0 };
 259     static const WCHAR temp[] = { 'T', 'E', 'M', 'P', 0 };
 260     WCHAR tmp_path[MAX_PATH];
 261     UINT ret;
 262
 263     TRACE("%u,%p\n", count, path);
 264
 265     if (!(ret = GetEnvironmentVariableW( tmp, tmp_path, MAX_PATH )))
 266         if (!(ret = GetEnvironmentVariableW( temp, tmp_path, MAX_PATH )))
 267             if (!(ret = GetCurrentDirectoryW( MAX_PATH, tmp_path )))
 268                 return 0;
 269
 270     if (ret > MAX_PATH)
 271     {
 272         SetLastError(ERROR_FILENAME_EXCED_RANGE);
 273         return 0;
 274     }
 275
 276     ret = GetFullPathNameW(tmp_path, MAX_PATH, tmp_path, NULL);
 277     if (!ret) return 0;
 278
 279     if (ret > MAX_PATH - 2)
 280     {
 281         SetLastError(ERROR_FILENAME_EXCED_RANGE);
 282         return 0;
 283     }
 284
 285     if (tmp_path[ret-1] != '\\')
 286     {
 287         tmp_path[ret++] = '\\';
 288         tmp_path[ret]   = '\0';
 289     }
 290
 291     ret++; /* add space for terminating 0 */
 292
 293     if (count)
 294     {
 295         lstrcpynW(path, tmp_path, count);
 296         if (count >= ret)
 297             ret--; /* return length without 0 */
 298         else if (count < 4)
 299             path[0] = 0; /* avoid returning ambiguous "X:" */
 300     }
 301
 302     TRACE("returning %u, %s\n", ret, debugstr_w(path));
 303     return ret;
 304 }
 305
 306
 307 /***********************************************************************
 308  *           DIR_GetWindowsUnixDir
 309  */
 310 UINT DIR_GetWindowsUnixDir( LPSTR path, UINT count )
 311 {
 312     if (path) lstrcpynA( path, DIR_Windows.long_name, count );
 313     return strlen( DIR_Windows.long_name );
 314 }
 315
 316
 317 /***********************************************************************
 318  *           DIR_GetSystemUnixDir
 319  */
 320 UINT DIR_GetSystemUnixDir( LPSTR path, UINT count )
 321 {
 322     if (path) lstrcpynA( path, DIR_System.long_name, count );
 323     return strlen( DIR_System.long_name );
 324 }
 325
 326
 327 /***********************************************************************
 328  *           GetTempDrive   (KERNEL.92)
 329  * A closer look at krnl386.exe shows what the SDK doesn't mention:
 330  *
 331  * returns:
 332  *   AL: driveletter
 333  *   AH: ':'            - yes, some kernel code even does stosw with
 334  *                            the returned AX.
 335  *   DX: 1 for success
 336  */
 337 UINT WINAPI GetTempDrive( BYTE ignored )
 338 {
 339     char *buffer;
 340     BYTE ret;
 341     UINT len = GetTempPathA( 0, NULL );
 342
 343     if (!(buffer = HeapAlloc( GetProcessHeap(), 0, len + 1 )) )
 344         ret = DRIVE_GetCurrentDrive() + 'A';
 345     else
 346     {
 347         /* FIXME: apparently Windows does something with the ignored byte */
 348         if (!GetTempPathA( len, buffer )) buffer[0] = 'C';
 349         ret = toupper(buffer[0]);
 350         HeapFree( GetProcessHeap(), 0, buffer );
 351     }
 352     return MAKELONG( ret | (':' << 8), 1 );
 353 }
 354
 355
 356 /***********************************************************************
 357  *           GetWindowsDirectory   (KERNEL.134)
 358  */
 359 UINT16 WINAPI GetWindowsDirectory16( LPSTR path, UINT16 count )
 360 {
 361     return (UINT16)GetWindowsDirectoryA( path, count );
 362 }
 363
 364
 365 /***********************************************************************
 366  *           GetWindowsDirectoryW   (KERNEL32.@)
 367  *
 368  * See comment for GetWindowsDirectoryA.
 369  */
 370 UINT WINAPI GetWindowsDirectoryW( LPWSTR path, UINT count )
 371 {
 372     UINT len = strlenW( DIR_Windows.short_name ) + 1;
 373     if (path && count >= len)
 374     {
 375         strcpyW( path, DIR_Windows.short_name );
 376         len--;
 377     }
 378     return len;
 379 }
 380
 381
 382 /***********************************************************************
 383  *           GetWindowsDirectoryA   (KERNEL32.@)
 384  *
 385  * Return value:
 386  * If buffer is large enough to hold full path and terminating '\0' character
 387  * function copies path to buffer and returns length of the path without '\0'.
 388  * Otherwise function returns required size including '\0' character and
 389  * does not touch the buffer.
 390  */
 391 UINT WINAPI GetWindowsDirectoryA( LPSTR path, UINT count )
 392 {
 393     UINT len = WideCharToMultiByte( CP_ACP, 0, DIR_Windows.short_name, -1, NULL, 0, NULL, NULL );
 394     if (path && count >= len)
 395     {
 396         WideCharToMultiByte( CP_ACP, 0, DIR_Windows.short_name, -1, path, count, NULL, NULL );
 397         len--;
 398     }
 399     return len;
 400 }
 401
 402
 403 /***********************************************************************
 404  *           GetSystemWindowsDirectoryA   (KERNEL32.@) W2K, TS4.0SP4
 405  */
 406 UINT WINAPI GetSystemWindowsDirectoryA( LPSTR path, UINT count )
 407 {
 408     return GetWindowsDirectoryA( path, count );
 409 }
 410
 411
 412 /***********************************************************************
 413  *           GetSystemWindowsDirectoryW   (KERNEL32.@) W2K, TS4.0SP4
 414  */
 415 UINT WINAPI GetSystemWindowsDirectoryW( LPWSTR path, UINT count )
 416 {
 417     return GetWindowsDirectoryW( path, count );
 418 }
 419
 420
 421 /***********************************************************************
 422  *           GetSystemDirectory   (KERNEL.135)
 423  */
 424 UINT16 WINAPI GetSystemDirectory16( LPSTR path, UINT16 count )
 425 {
 426     return (UINT16)GetSystemDirectoryA( path, count );
 427 }
 428
 429
 430 /***********************************************************************
 431  *           GetSystemDirectoryW   (KERNEL32.@)
 432  *
 433  * See comment for GetWindowsDirectoryA.
 434  */
 435 UINT WINAPI GetSystemDirectoryW( LPWSTR path, UINT count )
 436 {
 437     UINT len = strlenW( DIR_System.short_name ) + 1;
 438     if (path && count >= len)
 439     {
 440         strcpyW( path, DIR_System.short_name );
 441         len--;
 442     }
 443     return len;
 444 }
 445
 446
 447 /***********************************************************************
 448  *           GetSystemDirectoryA   (KERNEL32.@)
 449  *
 450  * See comment for GetWindowsDirectoryA.
 451  */
 452 UINT WINAPI GetSystemDirectoryA( LPSTR path, UINT count )
 453 {
 454     UINT len = WideCharToMultiByte( CP_ACP, 0, DIR_System.short_name, -1, NULL, 0, NULL, NULL );
 455     if (path && count >= len)
 456     {
 457         WideCharToMultiByte( CP_ACP, 0, DIR_System.short_name, -1, path, count, NULL, NULL );
 458         len--;
 459     }
 460     return len;
 461 }
 462
 463
 464 /***********************************************************************
 465  *           CreateDirectory   (KERNEL.144)
 466  */
 467 BOOL16 WINAPI CreateDirectory16( LPCSTR path, LPVOID dummy )
 468 {
 469     TRACE_(file)("(%s,%p)\n", path, dummy );
 470     return (BOOL16)CreateDirectoryA( path, NULL );
 471 }
 472
 473
 474 /***********************************************************************
 475  *           CreateDirectoryW   (KERNEL32.@)
 476  * RETURNS:
 477  *      TRUE : success
 478  *      FALSE : failure
 479  *              ERROR_DISK_FULL:        on full disk
 480  *              ERROR_ALREADY_EXISTS:   if directory name exists (even as file)
 481  *              ERROR_ACCESS_DENIED:    on permission problems
 482  *              ERROR_FILENAME_EXCED_RANGE: too long filename(s)
 483  */
 484 BOOL WINAPI CreateDirectoryW( LPCWSTR path,
 485                                   LPSECURITY_ATTRIBUTES lpsecattribs )
 486 {
 487     DOS_FULL_NAME full_name;
 488
 489     if (!path || !*path)
 490     {
 491         SetLastError(ERROR_PATH_NOT_FOUND);
 492         return FALSE;
 493     }
 494
 495     TRACE_(file)("(%s,%p)\n", debugstr_w(path), lpsecattribs );
 496
 497     if (DOSFS_GetDevice( path ))
 498     {
 499         TRACE_(file)("cannot use device %s!\n", debugstr_w(path));
 500         SetLastError( ERROR_ACCESS_DENIED );
 501         return FALSE;
 502     }
 503     if (!DOSFS_GetFullName( path, FALSE, &full_name )) return 0;
 504     if (mkdir( full_name.long_name, 0777 ) == -1) {
 505         WARN_(file)("Error '%s' trying to create directory '%s'\n", strerror(errno), full_name.long_name);
 506         /* the FILE_SetDosError() generated error codes don't match the
 507          * CreateDirectory ones for some errnos */
 508         switch (errno) {
 509         case EEXIST:
 510         {
 511             if (!strcmp(DRIVE_GetRoot(full_name.drive), full_name.long_name))
 512                 SetLastError(ERROR_ACCESS_DENIED);
 513             else
 514                 SetLastError(ERROR_ALREADY_EXISTS);
 515             break;
 516         }
 517         case ENOSPC: SetLastError(ERROR_DISK_FULL); break;
 518         default: FILE_SetDosError();break;
 519         }
 520         return FALSE;
 521     }
 522     return TRUE;
 523 }
 524
 525
 526 /***********************************************************************
 527  *           CreateDirectoryA   (KERNEL32.@)
 528  */
 529 BOOL WINAPI CreateDirectoryA( LPCSTR path,
 530                                   LPSECURITY_ATTRIBUTES lpsecattribs )
 531 {
 532     UNICODE_STRING pathW;
 533     BOOL ret = FALSE;
 534
 535     if (!path || !*path)
 536     {
 537         SetLastError(ERROR_PATH_NOT_FOUND);
 538         return FALSE;
 539     }
 540
 541     if (RtlCreateUnicodeStringFromAsciiz(&pathW, path))
 542     {
 543         ret = CreateDirectoryW(pathW.Buffer, lpsecattribs);
 544         RtlFreeUnicodeString(&pathW);
 545     }
 546     else
 547         SetLastError(ERROR_NOT_ENOUGH_MEMORY);
 548     return ret;
 549 }
 550
 551
 552 /***********************************************************************
 553  *           CreateDirectoryExA   (KERNEL32.@)
 554  */
 555 BOOL WINAPI CreateDirectoryExA( LPCSTR template, LPCSTR path,
 556                                     LPSECURITY_ATTRIBUTES lpsecattribs)
 557 {
 558     return CreateDirectoryA(path,lpsecattribs);
 559 }
 560
 561
 562 /***********************************************************************
 563  *           CreateDirectoryExW   (KERNEL32.@)
 564  */
 565 BOOL WINAPI CreateDirectoryExW( LPCWSTR template, LPCWSTR path,
 566                                     LPSECURITY_ATTRIBUTES lpsecattribs)
 567 {
 568     return CreateDirectoryW(path,lpsecattribs);
 569 }
 570
 571
 572 /***********************************************************************
 573  *           RemoveDirectory   (KERNEL.145)
 574  */
 575 BOOL16 WINAPI RemoveDirectory16( LPCSTR path )
 576 {
 577     return (BOOL16)RemoveDirectoryA( path );
 578 }
 579
 580
 581 /***********************************************************************
 582  *           RemoveDirectoryW   (KERNEL32.@)
 583  */
 584 BOOL WINAPI RemoveDirectoryW( LPCWSTR path )
 585 {
 586     DOS_FULL_NAME full_name;
 587
 588     if (!path)
 589     {
 590         SetLastError(ERROR_INVALID_PARAMETER);
 591         return FALSE;
 592     }
 593
 594     TRACE_(file)("%s\n", debugstr_w(path));
 595
 596     if (DOSFS_GetDevice( path ))
 597     {
 598         TRACE_(file)("cannot remove device %s!\n", debugstr_w(path));
 599         SetLastError( ERROR_FILE_NOT_FOUND );
 600         return FALSE;
 601     }
 602     if (!DOSFS_GetFullName( path, TRUE, &full_name )) return FALSE;
 603     if (rmdir( full_name.long_name ) == -1)
 604     {
 605         FILE_SetDosError();
 606         return FALSE;
 607     }
 608     return TRUE;
 609 }
 610
 611
 612 /***********************************************************************
 613  *           RemoveDirectoryA   (KERNEL32.@)
 614  */
 615 BOOL WINAPI RemoveDirectoryA( LPCSTR path )
 616 {
 617     UNICODE_STRING pathW;
 618     BOOL ret = FALSE;
 619
 620     if (!path)
 621     {
 622         SetLastError(ERROR_INVALID_PARAMETER);
 623         return FALSE;
 624     }
 625
 626     if (RtlCreateUnicodeStringFromAsciiz(&pathW, path))
 627     {
 628         ret = RemoveDirectoryW(pathW.Buffer);
 629         RtlFreeUnicodeString(&pathW);
 630     }
 631     else
 632         SetLastError(ERROR_NOT_ENOUGH_MEMORY);
 633     return ret;
 634 }
 635
 636
 637 /***********************************************************************
 638  *           DIR_TryPath
 639  *
 640  * Helper function for DIR_SearchPath.
 641  */
 642 static BOOL DIR_TryPath( const DOS_FULL_NAME *dir, LPCWSTR name,
 643                            DOS_FULL_NAME *full_name )
 644 {
 645     LPSTR p_l = full_name->long_name + strlen(dir->long_name) + 1;
 646     LPWSTR p_s = full_name->short_name + strlenW(dir->short_name) + 1;
 647
 648     if ((p_s >= full_name->short_name + sizeof(full_name->short_name)/sizeof(full_name->short_name[0]) - 14) ||
 649         (p_l >= full_name->long_name + sizeof(full_name->long_name) - 1))
 650     {
 651         SetLastError( ERROR_PATH_NOT_FOUND );
 652         return FALSE;
 653     }
 654     if (!DOSFS_FindUnixName( dir, name, p_l,
 655                    sizeof(full_name->long_name) - (p_l - full_name->long_name),
 656                    p_s, !(DRIVE_GetFlags(dir->drive) & DRIVE_CASE_SENSITIVE) ))
 657         return FALSE;
 658
 659     full_name->drive = dir->drive;
 660     strcpy( full_name->long_name, dir->long_name );
 661     p_l[-1] = '/';
 662     strcpyW( full_name->short_name, dir->short_name );
 663     p_s[-1] = '\\';
 664     return TRUE;
 665 }
 666
 667 static BOOL DIR_SearchSemicolonedPaths(LPCWSTR name, DOS_FULL_NAME *full_name, LPWSTR pathlist)
 668 {
 669     LPWSTR next, buffer = NULL;
 670     INT len = strlenW(name), newlen, currlen = 0;
 671     BOOL ret = FALSE;
 672
 673     next = pathlist;
 674     while (!ret && next)
 675     {
 676         static const WCHAR bkslashW[] = {'\\',0};
 677         LPWSTR cur = next;
 678         while (*cur == ';') cur++;
 679         if (!*cur) break;
 680         next = strchrW( cur, ';' );
 681         if (next) *next++ = '\0';
 682         newlen = strlenW(cur) + len + 2;
 683
 684         if (newlen > currlen)
 685         {
 686             if (!(buffer = HeapReAlloc( GetProcessHeap(), 0, buffer, newlen * sizeof(WCHAR))))
 687                 goto done;
 688             currlen = newlen;
 689         }
 690
 691         strcpyW( buffer, cur );
 692         strcatW( buffer, bkslashW );
 693         strcatW( buffer, name );
 694         ret = DOSFS_GetFullName( buffer, TRUE, full_name );
 695     }
 696 done:
 697     HeapFree( GetProcessHeap(), 0, buffer );
 698     return ret;
 699 }
 700
 701
 702 /***********************************************************************
 703  *           DIR_TryEnvironmentPath
 704  *
 705  * Helper function for DIR_SearchPath.
 706  * Search in the specified path, or in $PATH if NULL.
 707  */
 708 static BOOL DIR_TryEnvironmentPath( LPCWSTR name, DOS_FULL_NAME *full_name, LPCWSTR envpath )
 709 {
 710     LPWSTR path;
 711     BOOL ret = FALSE;
 712     DWORD size;
 713     static const WCHAR pathW[] = {'P','A','T','H',0};
 714
 715     size = envpath ? strlenW(envpath)+1 : GetEnvironmentVariableW( pathW, NULL, 0 );
 716     if (!size) return FALSE;
 717     if (!(path = HeapAlloc( GetProcessHeap(), 0, size * sizeof(WCHAR) ))) return FALSE;
 718     if (envpath) strcpyW( path, envpath );
 719     else if (!GetEnvironmentVariableW( pathW, path, size )) goto done;
 720
 721     ret = DIR_SearchSemicolonedPaths(name, full_name, path);
 722
 723 done:
 724     HeapFree( GetProcessHeap(), 0, path );
 725     return ret;
 726 }
 727
 728
 729 /***********************************************************************
 730  *           DIR_TryModulePath
 731  *
 732  * Helper function for DIR_SearchPath.
 733  */
 734 static BOOL DIR_TryModulePath( LPCWSTR name, DOS_FULL_NAME *full_name, BOOL win32 )
 735 {
 736     WCHAR bufferW[MAX_PATH];
 737     LPWSTR p;
 738
 739     if (!win32)
 740     {
 741         char buffer[OFS_MAXPATHNAME];
 742         if (!GetCurrentTask()) return FALSE;
 743         if (!GetModuleFileName16( GetCurrentTask(), buffer, sizeof(buffer) ))
 744             return FALSE;
 745         MultiByteToWideChar(CP_ACP, 0, buffer, -1, bufferW, MAX_PATH);
 746     } else {
 747         if (!GetModuleFileNameW( 0, bufferW, MAX_PATH ) )
 748             return FALSE;
 749     }
 750     if (!(p = strrchrW( bufferW, '\\' ))) return FALSE;
 751     if (MAX_PATH - (++p - bufferW) <= strlenW(name)) return FALSE;
 752     strcpyW( p, name );
 753     return DOSFS_GetFullName( bufferW, TRUE, full_name );
 754 }
 755
 756
 757 /***********************************************************************
 758  *           DIR_TryAppPath
 759  *
 760  * Helper function for DIR_SearchPath.
 761  */
 762 static BOOL DIR_TryAppPath( LPCWSTR name, DOS_FULL_NAME *full_name )
 763 {
 764     HKEY hkAppPaths = 0, hkApp = 0;
 765     WCHAR buffer[MAX_PATHNAME_LEN], *lpAppPaths;
 766     LPWSTR lpFileName;
 767     BOOL res = FALSE;
 768     DWORD count;
 769     OBJECT_ATTRIBUTES attr;
 770     UNICODE_STRING nameW;
 771     KEY_VALUE_PARTIAL_INFORMATION *info;
 772     static const WCHAR PathW[] = {'P','a','t','h',0};
 773     static const WCHAR AppPathsW[] = {'M','a','c','h','i','n','e','\\',
 774                                       'S','o','f','t','w','a','r','e','\\',
 775                                       'M','i','c','r','o','s','o','f','t','\\',
 776                                       'W','i','n','d','o','w','s','\\',
 777                                       'C','u','r','r','e','n','t','V','e','r','s','i','o','n','\\',
 778                                       'A','p','p',' ','P','a','t','h','s',0};
 779
 780     attr.Length = sizeof(attr);
 781     attr.RootDirectory = 0;
 782     attr.ObjectName = &nameW;
 783     attr.Attributes = 0;
 784     attr.SecurityDescriptor = NULL;
 785     attr.SecurityQualityOfService = NULL;
 786     RtlInitUnicodeString( &nameW, AppPathsW );
 787     if (NtOpenKey( &hkAppPaths, KEY_ALL_ACCESS, &attr ) != STATUS_SUCCESS) return FALSE;
 788
 789     if (!GetModuleFileNameW(0, buffer, MAX_PATHNAME_LEN))
 790     {
 791         WARN("huh, module not found ??\n");
 792         goto end;
 793     }
 794     lpFileName = strrchrW(buffer, '\\');
 795     if (!lpFileName) lpFileName = buffer;
 796     else lpFileName++; /* skip '\\' */
 797
 798     attr.RootDirectory = hkAppPaths;
 799     RtlInitUnicodeString( &nameW, lpFileName );
 800     if (NtOpenKey( &hkApp, KEY_ALL_ACCESS, &attr ) != STATUS_SUCCESS) goto end;
 801
 802     RtlInitUnicodeString( &nameW, PathW );
 803     if (NtQueryValueKey( hkApp, &nameW, KeyValuePartialInformation,
 804                          buffer, sizeof(buffer)-sizeof(WCHAR), &count )) goto end;
 805     info = (KEY_VALUE_PARTIAL_INFORMATION *)buffer;
 806     lpAppPaths = (WCHAR *)info->Data;
 807     lpAppPaths[info->DataLength/sizeof(WCHAR)] = 0;
 808     res = DIR_SearchSemicolonedPaths(name, full_name, lpAppPaths);
 809 end:
 810     if (hkApp) NtClose(hkApp);
 811     if (hkAppPaths) NtClose(hkAppPaths);
 812     return res;
 813 }
 814
 815 /***********************************************************************
 816  *           DIR_SearchPath
 817  *
 818  * Implementation of SearchPathA. 'win32' specifies whether the search
 819  * order is Win16 (module path last) or Win32 (module path first).
 820  *
 821  * FIXME: should return long path names.
 822  */
 823 DWORD DIR_SearchPath( LPCWSTR path, LPCWSTR name, LPCWSTR ext,
 824                       DOS_FULL_NAME *full_name, BOOL win32 )
 825 {
 826     LPCWSTR p;
 827     LPWSTR tmp = NULL;
 828     BOOL ret = TRUE;
 829
 830     /* First check the supplied parameters */
 831
 832     p = strrchrW( name, '.' );
 833     if (p && !strchrW( p, '/' ) && !strchrW( p, '\\' ))
 834         ext = NULL;  /* Ignore the specified extension */
 835     if (FILE_contains_pathW (name))
 836         path = NULL;  /* Ignore path if name already contains a path */
 837     if (path && !*path) path = NULL;  /* Ignore empty path */
 838
 839     /* Allocate a buffer for the file name and extension */
 840
 841     if (ext)
 842     {
 843         DWORD len = strlenW(name) + strlenW(ext);
 844         if (!(tmp = HeapAlloc( GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR) )))
 845         {
 846             SetLastError( ERROR_OUTOFMEMORY );
 847             return 0;
 848         }
 849         strcpyW( tmp, name );
 850         strcatW( tmp, ext );
 851         name = tmp;
 852     }
 853
 854     /* If the name contains an explicit path, everything's easy */
 855
 856     if (FILE_contains_pathW(name))
 857     {
 858         ret = DOSFS_GetFullName( name, TRUE, full_name );
 859         goto done;
 860     }
 861
 862     /* Search in the specified path */
 863
 864     if (path)
 865     {
 866         ret = DIR_TryEnvironmentPath( name, full_name, path );
 867         goto done;
 868     }
 869
 870     /* Try the path of the current executable (for Win32 search order) */
 871
 872     if (win32 && DIR_TryModulePath( name, full_name, win32 )) goto done;
 873
 874     /* Try the current directory */
 875
 876     if (DOSFS_GetFullName( name, TRUE, full_name )) goto done;
 877
 878     /* Try the Windows system directory */
 879
 880     if (DIR_TryPath( &DIR_System, name, full_name ))
 881         goto done;
 882
 883     /* Try the Windows directory */
 884
 885     if (DIR_TryPath( &DIR_Windows, name, full_name ))
 886         goto done;
 887
 888     /* Try the path of the current executable (for Win16 search order) */
 889
 890     if (!win32 && DIR_TryModulePath( name, full_name, win32 )) goto done;
 891
 892     /* Try the "App Paths" entry if existing (undocumented ??) */
 893     if (DIR_TryAppPath(name, full_name))
 894         goto done;
 895
 896     /* Try all directories in path */
 897
 898     ret = DIR_TryEnvironmentPath( name, full_name, NULL );
 899
 900 done:
 901     if (tmp) HeapFree( GetProcessHeap(), 0, tmp );
 902     return ret;
 903 }
 904
 905
 906 /***********************************************************************
 907  * SearchPathW [KERNEL32.@]
 908  *
 909  * Searches for a specified file in the search path.
 910  *
 911  * PARAMS
 912  *    path      [I] Path to search
 913  *    name      [I] Filename to search for.
 914  *    ext       [I] File extension to append to file name. The first
 915  *                  character must be a period. This parameter is
 916  *                  specified only if the filename given does not
 917  *                  contain an extension.
 918  *    buflen    [I] size of buffer, in characters
 919  *    buffer    [O] buffer for found filename
 920  *    lastpart  [O] address of pointer to last used character in
 921  *                  buffer (the final '\')
 922  *
 923  * RETURNS
 924  *    Success: length of string copied into buffer, not including
 925  *             terminating null character. If the filename found is
 926  *             longer than the length of the buffer, the length of the
 927  *             filename is returned.
 928  *    Failure: Zero
 929  *
 930  * NOTES
 931  *    If the file is not found, calls SetLastError(ERROR_FILE_NOT_FOUND)
 932  *    (tested on NT 4.0)
 933  */
 934 DWORD WINAPI SearchPathW( LPCWSTR path, LPCWSTR name, LPCWSTR ext, DWORD buflen,
 935                           LPWSTR buffer, LPWSTR *lastpart )
 936 {
 937     LPSTR res;
 938     DOS_FULL_NAME full_name;
 939
 940     if (!DIR_SearchPath( path, name, ext, &full_name, TRUE ))
 941     {
 942         SetLastError(ERROR_FILE_NOT_FOUND);
 943         return 0;
 944     }
 945
 946 TRACE("found %s %s\n", full_name.long_name, debugstr_w(full_name.short_name));
 947 TRACE("drive %c: root %s\n", 'A' + full_name.drive, DRIVE_GetRoot(full_name.drive));
 948
 949     lstrcpynW( buffer, full_name.short_name, buflen );
 950     res = full_name.long_name +
 951               strlen(DRIVE_GetRoot( full_name.drive ));
 952     while (*res == '/') res++;
 953     if (buflen)
 954     {
 955         LPWSTR p;
 956         if (buflen > 3)
 957         {
 958             MultiByteToWideChar(DRIVE_GetCodepage(full_name.drive), 0,
 959                                 res, -1, buffer + 3, buflen - 3);
 960             buffer[buflen - 1] = 0;
 961         }
 962         for (p = buffer; *p; p++) if (*p == '/') *p = '\\';
 963         if (lastpart) *lastpart = strrchrW( buffer, '\\' ) + 1;
 964     }
 965     TRACE("Returning %s\n", debugstr_w(buffer) );
 966     return strlenW(buffer);
 967 }
 968
 969
 970 /***********************************************************************
 971  *           SearchPathA   (KERNEL32.@)
 972  */
 973 DWORD WINAPI SearchPathA( LPCSTR path, LPCSTR name, LPCSTR ext,
 974                           DWORD buflen, LPSTR buffer, LPSTR *lastpart )
 975 {
 976     UNICODE_STRING pathW, nameW, extW;
 977     WCHAR bufferW[MAX_PATH];
 978     DWORD ret, retW;
 979
 980     if (path) RtlCreateUnicodeStringFromAsciiz(&pathW, path);
 981     else pathW.Buffer = NULL;
 982     if (name) RtlCreateUnicodeStringFromAsciiz(&nameW, name);
 983     else nameW.Buffer = NULL;
 984     if (ext) RtlCreateUnicodeStringFromAsciiz(&extW, ext);
 985     else extW.Buffer = NULL;
 986
 987     retW = SearchPathW(pathW.Buffer, nameW.Buffer, extW.Buffer, MAX_PATH, bufferW, NULL);
 988
 989     if (!retW)
 990         ret = 0;
 991     else if (retW > MAX_PATH)
 992     {
 993         SetLastError(ERROR_FILENAME_EXCED_RANGE);
 994         ret = 0;
 995     }
 996     else
 997     {
 998         ret = WideCharToMultiByte(CP_ACP, 0, bufferW, -1, NULL, 0, NULL, NULL);
 999         if (buflen >= ret)
1000         {
1001             WideCharToMultiByte(CP_ACP, 0, bufferW, -1, buffer, buflen, NULL, NULL);
1002             ret--; /* length without 0 */
1003             if (lastpart) *lastpart = strrchr(buffer, '\\') + 1;
1004         }
1005     }
1006
1007     RtlFreeUnicodeString(&pathW);
1008     RtlFreeUnicodeString(&nameW);
1009     RtlFreeUnicodeString(&extW);
1010     return ret;
1011 }
1012
1013
1014 /***********************************************************************
1015  *           search_alternate_path
1016  *
1017  *
1018  * FIXME: should return long path names.?
1019  */
1020 static BOOL search_alternate_path(LPCWSTR dll_path, LPCWSTR name, LPCWSTR ext,
1021                                   DOS_FULL_NAME *full_name)
1022 {
1023     LPCWSTR p;
1024     LPWSTR tmp = NULL;
1025     BOOL ret = TRUE;
1026
1027     /* First check the supplied parameters */
1028
1029     p = strrchrW( name, '.' );
1030     if (p && !strchrW( p, '/' ) && !strchrW( p, '\\' ))
1031         ext = NULL;  /* Ignore the specified extension */
1032
1033     /* Allocate a buffer for the file name and extension */
1034
1035     if (ext)
1036     {
1037         DWORD len = strlenW(name) + strlenW(ext);
1038         if (!(tmp = HeapAlloc( GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR) )))
1039         {
1040             SetLastError( ERROR_OUTOFMEMORY );
1041             return 0;
1042         }
1043         strcpyW( tmp, name );
1044         strcatW( tmp, ext );
1045         name = tmp;
1046     }
1047
1048     if (DIR_TryEnvironmentPath (name, full_name, dll_path))
1049         ;
1050     else if (DOSFS_GetFullName (name, TRUE, full_name)) /* current dir */
1051         ;
1052     else if (DIR_TryPath (&DIR_System, name, full_name)) /* System dir */
1053         ;
1054     else if (DIR_TryPath (&DIR_Windows, name, full_name)) /* Windows dir */
1055         ;
1056     else
1057         ret = DIR_TryEnvironmentPath( name, full_name, NULL );
1058
1059     if (tmp) HeapFree( GetProcessHeap(), 0, tmp );
1060     return ret;
1061 }
1062
1063
1064 /***********************************************************************
1065  * DIR_SearchAlternatePath
1066  *
1067  * Searches for a specified file in the search path.
1068  *
1069  * PARAMS
1070  *    dll_path  [I] Path to search
1071  *    name      [I] Filename to search for.
1072  *    ext       [I] File extension to append to file name. The first
1073  *                  character must be a period. This parameter is
1074  *                  specified only if the filename given does not
1075  *                  contain an extension.
1076  *    buflen    [I] size of buffer, in characters
1077  *    buffer    [O] buffer for found filename
1078  *    lastpart  [O] address of pointer to last used character in
1079  *                  buffer (the final '\') (May be NULL)
1080  *
1081  * RETURNS
1082  *    Success: length of string copied into buffer, not including
1083  *             terminating null character. If the filename found is
1084  *             longer than the length of the buffer, the length of the
1085  *             filename is returned.
1086  *    Failure: Zero
1087  *
1088  * NOTES
1089  *    If the file is not found, calls SetLastError(ERROR_FILE_NOT_FOUND)
1090  *
1091  * FIXME: convert to unicode
1092  */
1093 DWORD DIR_SearchAlternatePath( LPCSTR dll_path, LPCSTR name, LPCSTR ext,
1094                                DWORD buflen, LPSTR buffer, LPSTR *lastpart )
1095 {
1096     LPSTR p;
1097     DOS_FULL_NAME full_name;
1098     DWORD ret = 0;
1099     UNICODE_STRING dll_pathW, nameW, extW;
1100
1101     if (dll_path) RtlCreateUnicodeStringFromAsciiz(&dll_pathW, dll_path);
1102     else dll_pathW.Buffer = NULL;
1103     if (name) RtlCreateUnicodeStringFromAsciiz(&nameW, name);
1104     else nameW.Buffer = NULL;
1105     if (ext) RtlCreateUnicodeStringFromAsciiz(&extW, ext);
1106     else extW.Buffer = NULL;
1107
1108     if (search_alternate_path( dll_pathW.Buffer, nameW.Buffer, extW.Buffer, &full_name))
1109     {
1110         ret = WideCharToMultiByte(CP_ACP, 0, full_name.short_name, -1, NULL, 0, NULL, NULL);
1111         if (buflen >= ret)
1112         {
1113             WideCharToMultiByte(CP_ACP, 0, full_name.short_name, -1, buffer, buflen, NULL, NULL);
1114             for (p = buffer; *p; p++) if (*p == '/') *p = '\\';
1115             if (lastpart) *lastpart = strrchr( buffer, '\\' ) + 1;
1116             ret--; /* length without 0 */
1117         }
1118     }
1119     else
1120         SetLastError(ERROR_FILE_NOT_FOUND);
1121
1122     RtlFreeUnicodeString(&dll_pathW);
1123     RtlFreeUnicodeString(&nameW);
1124     RtlFreeUnicodeString(&extW);
1125
1126     TRACE("Returning %ld\n", ret );
1127     return ret;
1128 }