files/directory.c

   1 /*
   2  * DOS directories functions
   3  *
   4  * Copyright 1995 Alexandre Julliard
   5  */
   6
   7 #include "config.h"
   8
   9 #include <ctype.h>
  10 #include <stdlib.h>
  11 #include <stdio.h>
  12 #include <string.h>
  13 #include <sys/types.h>
  14 #include <sys/stat.h>
  15 #include <unistd.h>
  16 #include <errno.h>
  17 #ifdef HAVE_SYS_ERRNO_H
  18 #include <sys/errno.h>
  19 #endif
  20
  21 #include "winbase.h"
  22 #include "wine/winbase16.h"
  23 #include "wine/winestring.h"
  24 #include "windef.h"
  25 #include "wingdi.h"
  26 #include "wine/winuser16.h"
  27 #include "winerror.h"
  28 #include "drive.h"
  29 #include "file.h"
  30 #include "heap.h"
  31 #include "msdos.h"
  32 #include "options.h"
  33 #include "debugtools.h"
  34
  35 DEFAULT_DEBUG_CHANNEL(dosfs);
  36 DECLARE_DEBUG_CHANNEL(file);
  37
  38 static DOS_FULL_NAME DIR_Windows;
  39 static DOS_FULL_NAME DIR_System;
  40
  41
  42 /***********************************************************************
  43  *           DIR_GetPath
  44  *
  45  * Get a path name from the wine.ini file and make sure it is valid.
  46  */
  47 static int DIR_GetPath( const char *keyname, const char *defval,
  48                         DOS_FULL_NAME *full_name )
  49 {
  50     char path[MAX_PATHNAME_LEN];
  51     BY_HANDLE_FILE_INFORMATION info;
  52
  53     PROFILE_GetWineIniString( "wine", keyname, defval, path, sizeof(path) );
  54     if (!DOSFS_GetFullName( path, TRUE, full_name ) ||
  55         !FILE_Stat( full_name->long_name, &info ) ||
  56         !(info.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY))
  57     {
  58         MESSAGE("Invalid path '%s' for %s directory\n", path, keyname);
  59         return 0;
  60     }
  61     return 1;
  62 }
  63
  64
  65 /***********************************************************************
  66  *           DIR_Init
  67  */
  68 int DIR_Init(void)
  69 {
  70     char path[MAX_PATHNAME_LEN];
  71     DOS_FULL_NAME tmp_dir, profile_dir;
  72     int drive;
  73     const char *cwd;
  74
  75     if (!getcwd( path, MAX_PATHNAME_LEN ))
  76     {
  77         perror( "Could not get current directory" );
  78         return 0;
  79     }
  80     cwd = path;
  81     if ((drive = DRIVE_FindDriveRoot( &cwd )) == -1)
  82     {
  83         MESSAGE("Warning: could not find wine.conf [Drive x] entry "
  84             "for current working directory %s; "
  85             "starting in windows directory.\n", cwd );
  86     }
  87     else
  88     {
  89         DRIVE_SetCurrentDrive( drive );
  90         DRIVE_Chdir( drive, cwd );
  91     }
  92
  93     if (!(DIR_GetPath( "windows", "c:\\windows", &DIR_Windows )) ||
  94         !(DIR_GetPath( "system", "c:\\windows\\system", &DIR_System )) ||
  95         !(DIR_GetPath( "temp", "c:\\windows", &tmp_dir )))
  96     {
  97         PROFILE_UsageWineIni();
  98         return 0;
  99     }
 100     if (-1 == access( tmp_dir.long_name, W_OK ))
 101     {
 102         if (errno==EACCES)
 103         {
 104                 MESSAGE("Warning: The Temporary Directory (as specified in your configuration file) is NOT writeable.\n");
 105                 PROFILE_UsageWineIni();
 106         }
 107         else
 108                 MESSAGE("Warning: Access to Temporary Directory failed (%s).\n",
 109                     strerror(errno));
 110     }
 111
 112     if (drive == -1)
 113     {
 114         drive = DIR_Windows.drive;
 115         DRIVE_SetCurrentDrive( drive );
 116         DRIVE_Chdir( drive, DIR_Windows.short_name + 2 );
 117     }
 118
 119     PROFILE_GetWineIniString("wine", "path", "c:\\windows;c:\\windows\\system",
 120                              path, sizeof(path) );
 121     if (strchr(path, '/'))
 122     {
 123         MESSAGE("No '/' allowed in [wine] 'Path=' statement of wine.conf !\n");
 124         PROFILE_UsageWineIni();
 125         ExitProcess(1);
 126     }
 127
 128     /* Set the environment variables */
 129
 130     SetEnvironmentVariableA( "PATH", path );
 131     SetEnvironmentVariableA( "TEMP", tmp_dir.short_name );
 132     SetEnvironmentVariableA( "windir", DIR_Windows.short_name );
 133     SetEnvironmentVariableA( "winsysdir", DIR_System.short_name );
 134
 135     /* set COMSPEC only if it doesn't exist already */
 136     if (!GetEnvironmentVariableA( "COMSPEC", NULL, 0 ))
 137         SetEnvironmentVariableA( "COMSPEC", "c:\\command.com" );
 138
 139     TRACE("WindowsDir = %s (%s)\n",
 140           DIR_Windows.short_name, DIR_Windows.long_name );
 141     TRACE("SystemDir  = %s (%s)\n",
 142           DIR_System.short_name, DIR_System.long_name );
 143     TRACE("TempDir    = %s (%s)\n",
 144           tmp_dir.short_name, tmp_dir.long_name );
 145     TRACE("Path       = %s\n", path );
 146     TRACE("Cwd        = %c:\\%s\n",
 147           'A' + drive, DRIVE_GetDosCwd( drive ) );
 148
 149     if (DIR_GetPath( "profile", "", &profile_dir ))
 150     {
 151         TRACE("USERPROFILE= %s\n", profile_dir.short_name );
 152         SetEnvironmentVariableA( "USERPROFILE", profile_dir.short_name );
 153     }
 154
 155     TRACE("SYSTEMROOT = %s\n", DIR_Windows.short_name );
 156     SetEnvironmentVariableA( "SYSTEMROOT", DIR_Windows.short_name );
 157
 158     return 1;
 159 }
 160
 161
 162 /***********************************************************************
 163  *           GetTempPathA   (KERNEL32.292)
 164  */
 165 UINT WINAPI GetTempPathA( UINT count, LPSTR path )
 166 {
 167     UINT ret;
 168     if (!(ret = GetEnvironmentVariableA( "TMP", path, count )))
 169         if (!(ret = GetEnvironmentVariableA( "TEMP", path, count )))
 170             if (!(ret = GetCurrentDirectoryA( count, path )))
 171                 return 0;
 172     if (count && (ret < count - 1) && (path[ret-1] != '\\'))
 173     {
 174         path[ret++] = '\\';
 175         path[ret]   = '\0';
 176     }
 177     return ret;
 178 }
 179
 180
 181 /***********************************************************************
 182  *           GetTempPathW   (KERNEL32.293)
 183  */
 184 UINT WINAPI GetTempPathW( UINT count, LPWSTR path )
 185 {
 186     static const WCHAR tmp[]  = { 'T', 'M', 'P', 0 };
 187     static const WCHAR temp[] = { 'T', 'E', 'M', 'P', 0 };
 188     UINT ret;
 189     if (!(ret = GetEnvironmentVariableW( tmp, path, count )))
 190         if (!(ret = GetEnvironmentVariableW( temp, path, count )))
 191             if (!(ret = GetCurrentDirectoryW( count, path )))
 192                 return 0;
 193     if (count && (ret < count - 1) && (path[ret-1] != '\\'))
 194     {
 195         path[ret++] = '\\';
 196         path[ret]   = '\0';
 197     }
 198     return ret;
 199 }
 200
 201
 202 /***********************************************************************
 203  *           DIR_GetWindowsUnixDir
 204  */
 205 UINT DIR_GetWindowsUnixDir( LPSTR path, UINT count )
 206 {
 207     if (path) lstrcpynA( path, DIR_Windows.long_name, count );
 208     return strlen( DIR_Windows.long_name );
 209 }
 210
 211
 212 /***********************************************************************
 213  *           DIR_GetSystemUnixDir
 214  */
 215 UINT DIR_GetSystemUnixDir( LPSTR path, UINT count )
 216 {
 217     if (path) lstrcpynA( path, DIR_System.long_name, count );
 218     return strlen( DIR_System.long_name );
 219 }
 220
 221
 222 /***********************************************************************
 223  *           GetTempDrive   (KERNEL.92)
 224  * A closer look at krnl386.exe shows what the SDK doesn't mention:
 225  *
 226  * returns:
 227  *   AL: driveletter
 228  *   AH: ':'            - yes, some kernel code even does stosw with
 229  *                            the returned AX.
 230  *   DX: 1 for success
 231  */
 232 UINT WINAPI GetTempDrive( BYTE ignored )
 233 {
 234     char *buffer;
 235     BYTE ret;
 236     UINT len = GetTempPathA( 0, NULL );
 237
 238     if (!(buffer = HeapAlloc( GetProcessHeap(), 0, len + 1 )) )
 239         ret = DRIVE_GetCurrentDrive() + 'A';
 240     else
 241     {
 242         /* FIXME: apparently Windows does something with the ignored byte */
 243         if (!GetTempPathA( len, buffer )) buffer[0] = 'C';
 244         ret = toupper(buffer[0]);
 245         HeapFree( GetProcessHeap(), 0, buffer );
 246     }
 247     return MAKELONG( ret | (':' << 8), 1 );
 248 }
 249
 250
 251 /***********************************************************************
 252  *           GetWindowsDirectory16   (KERNEL.134)
 253  */
 254 UINT16 WINAPI GetWindowsDirectory16( LPSTR path, UINT16 count )
 255 {
 256     return (UINT16)GetWindowsDirectoryA( path, count );
 257 }
 258
 259
 260 /***********************************************************************
 261  *           GetWindowsDirectoryA   (KERNEL32.311)
 262  */
 263 UINT WINAPI GetWindowsDirectoryA( LPSTR path, UINT count )
 264 {
 265     if (path) lstrcpynA( path, DIR_Windows.short_name, count );
 266     return strlen( DIR_Windows.short_name );
 267 }
 268
 269
 270 /***********************************************************************
 271  *           GetWindowsDirectoryW   (KERNEL32.312)
 272  */
 273 UINT WINAPI GetWindowsDirectoryW( LPWSTR path, UINT count )
 274 {
 275     if (path) lstrcpynAtoW( path, DIR_Windows.short_name, count );
 276     return strlen( DIR_Windows.short_name );
 277 }
 278
 279
 280 /***********************************************************************
 281  *           GetSystemWindowsDirectoryA   (KERNEL32) W2K, TS4.0SP4
 282  */
 283 UINT WINAPI GetSystemWindowsDirectoryA( LPSTR path, UINT count )
 284 {
 285     return GetWindowsDirectoryA( path, count );
 286 }
 287
 288
 289 /***********************************************************************
 290  *           GetSystemWindowsDirectoryW   (KERNEL32) W2K, TS4.0SP4
 291  */
 292 UINT WINAPI GetSystemWindowsDirectoryW( LPWSTR path, UINT count )
 293 {
 294     return GetWindowsDirectoryW( path, count );
 295 }
 296
 297
 298 /***********************************************************************
 299  *           GetSystemDirectory16   (KERNEL.135)
 300  */
 301 UINT16 WINAPI GetSystemDirectory16( LPSTR path, UINT16 count )
 302 {
 303     return (UINT16)GetSystemDirectoryA( path, count );
 304 }
 305
 306
 307 /***********************************************************************
 308  *           GetSystemDirectoryA   (KERNEL32.282)
 309  */
 310 UINT WINAPI GetSystemDirectoryA( LPSTR path, UINT count )
 311 {
 312     if (path) lstrcpynA( path, DIR_System.short_name, count );
 313     return strlen( DIR_System.short_name );
 314 }
 315
 316
 317 /***********************************************************************
 318  *           GetSystemDirectoryW   (KERNEL32.283)
 319  */
 320 UINT WINAPI GetSystemDirectoryW( LPWSTR path, UINT count )
 321 {
 322     if (path) lstrcpynAtoW( path, DIR_System.short_name, count );
 323     return strlen( DIR_System.short_name );
 324 }
 325
 326
 327 /***********************************************************************
 328  *           CreateDirectory16   (KERNEL.144)
 329  */
 330 BOOL16 WINAPI CreateDirectory16( LPCSTR path, LPVOID dummy )
 331 {
 332     TRACE_(file)("(%s,%p)\n", path, dummy );
 333     return (BOOL16)CreateDirectoryA( path, NULL );
 334 }
 335
 336
 337 /***********************************************************************
 338  *           CreateDirectoryA   (KERNEL32.39)
 339  * RETURNS:
 340  *      TRUE : success
 341  *      FALSE : failure
 342  *              ERROR_DISK_FULL:        on full disk
 343  *              ERROR_ALREADY_EXISTS:   if directory name exists (even as file)
 344  *              ERROR_ACCESS_DENIED:    on permission problems
 345  *              ERROR_FILENAME_EXCED_RANGE: too long filename(s)
 346  */
 347 BOOL WINAPI CreateDirectoryA( LPCSTR path,
 348                                   LPSECURITY_ATTRIBUTES lpsecattribs )
 349 {
 350     DOS_FULL_NAME full_name;
 351
 352     TRACE_(file)("(%s,%p)\n", path, lpsecattribs );
 353     if (DOSFS_GetDevice( path ))
 354     {
 355         TRACE_(file)("cannot use device '%s'!\n",path);
 356         SetLastError( ERROR_ACCESS_DENIED );
 357         return FALSE;
 358     }
 359     if (!DOSFS_GetFullName( path, FALSE, &full_name )) return 0;
 360     if (mkdir( full_name.long_name, 0777 ) == -1) {
 361         WARN_(file)("Errno %i trying to create directory %s.\n", errno, full_name.long_name);
 362         /* the FILE_SetDosError() generated error codes don't match the
 363          * CreateDirectory ones for some errnos */
 364         switch (errno) {
 365         case EEXIST: SetLastError(ERROR_ALREADY_EXISTS); break;
 366         case ENOSPC: SetLastError(ERROR_DISK_FULL); break;
 367         default: FILE_SetDosError();break;
 368         }
 369         return FALSE;
 370     }
 371     return TRUE;
 372 }
 373
 374
 375 /***********************************************************************
 376  *           CreateDirectoryW   (KERNEL32.42)
 377  */
 378 BOOL WINAPI CreateDirectoryW( LPCWSTR path,
 379                                   LPSECURITY_ATTRIBUTES lpsecattribs )
 380 {
 381     LPSTR xpath = HEAP_strdupWtoA( GetProcessHeap(), 0, path );
 382     BOOL ret = CreateDirectoryA( xpath, lpsecattribs );
 383     HeapFree( GetProcessHeap(), 0, xpath );
 384     return ret;
 385 }
 386
 387
 388 /***********************************************************************
 389  *           CreateDirectoryExA   (KERNEL32.40)
 390  */
 391 BOOL WINAPI CreateDirectoryExA( LPCSTR template, LPCSTR path,
 392                                     LPSECURITY_ATTRIBUTES lpsecattribs)
 393 {
 394     return CreateDirectoryA(path,lpsecattribs);
 395 }
 396
 397
 398 /***********************************************************************
 399  *           CreateDirectoryExW   (KERNEL32.41)
 400  */
 401 BOOL WINAPI CreateDirectoryExW( LPCWSTR template, LPCWSTR path,
 402                                     LPSECURITY_ATTRIBUTES lpsecattribs)
 403 {
 404     return CreateDirectoryW(path,lpsecattribs);
 405 }
 406
 407
 408 /***********************************************************************
 409  *           RemoveDirectory16   (KERNEL)
 410  */
 411 BOOL16 WINAPI RemoveDirectory16( LPCSTR path )
 412 {
 413     return (BOOL16)RemoveDirectoryA( path );
 414 }
 415
 416
 417 /***********************************************************************
 418  *           RemoveDirectoryA   (KERNEL32.437)
 419  */
 420 BOOL WINAPI RemoveDirectoryA( LPCSTR path )
 421 {
 422     DOS_FULL_NAME full_name;
 423
 424     TRACE_(file)("'%s'\n", path );
 425
 426     if (DOSFS_GetDevice( path ))
 427     {
 428         TRACE_(file)("cannot remove device '%s'!\n", path);
 429         SetLastError( ERROR_FILE_NOT_FOUND );
 430         return FALSE;
 431     }
 432     if (!DOSFS_GetFullName( path, TRUE, &full_name )) return FALSE;
 433     if (rmdir( full_name.long_name ) == -1)
 434     {
 435         FILE_SetDosError();
 436         return FALSE;
 437     }
 438     return TRUE;
 439 }
 440
 441
 442 /***********************************************************************
 443  *           RemoveDirectoryW   (KERNEL32.438)
 444  */
 445 BOOL WINAPI RemoveDirectoryW( LPCWSTR path )
 446 {
 447     LPSTR xpath = HEAP_strdupWtoA( GetProcessHeap(), 0, path );
 448     BOOL ret = RemoveDirectoryA( xpath );
 449     HeapFree( GetProcessHeap(), 0, xpath );
 450     return ret;
 451 }
 452
 453
 454 /***********************************************************************
 455  *           DIR_TryPath
 456  *
 457  * Helper function for DIR_SearchPath.
 458  */
 459 static BOOL DIR_TryPath( const DOS_FULL_NAME *dir, LPCSTR name,
 460                            DOS_FULL_NAME *full_name )
 461 {
 462     LPSTR p_l = full_name->long_name + strlen(dir->long_name) + 1;
 463     LPSTR p_s = full_name->short_name + strlen(dir->short_name) + 1;
 464
 465     if ((p_s >= full_name->short_name + sizeof(full_name->short_name) - 14) ||
 466         (p_l >= full_name->long_name + sizeof(full_name->long_name) - 1))
 467     {
 468         SetLastError( ERROR_PATH_NOT_FOUND );
 469         return FALSE;
 470     }
 471     if (!DOSFS_FindUnixName( dir->long_name, name, p_l,
 472                    sizeof(full_name->long_name) - (p_l - full_name->long_name),
 473                    p_s, !(DRIVE_GetFlags(dir->drive) & DRIVE_CASE_SENSITIVE) ))
 474         return FALSE;
 475     strcpy( full_name->long_name, dir->long_name );
 476     p_l[-1] = '/';
 477     strcpy( full_name->short_name, dir->short_name );
 478     p_s[-1] = '\\';
 479     return TRUE;
 480 }
 481
 482
 483 /***********************************************************************
 484  *           DIR_TryEnvironmentPath
 485  *
 486  * Helper function for DIR_SearchPath.
 487  * Search in the specified path, or in $PATH if NULL.
 488  */
 489 static BOOL DIR_TryEnvironmentPath( LPCSTR name, DOS_FULL_NAME *full_name, LPCSTR envpath )
 490 {
 491     LPSTR path, next, buffer;
 492     BOOL ret = FALSE;
 493     INT len = strlen(name);
 494     DWORD size;
 495
 496     size = envpath ? strlen(envpath)+1 : GetEnvironmentVariableA( "PATH", NULL, 0 );
 497     if (!size) return FALSE;
 498     if (!(path = HeapAlloc( GetProcessHeap(), 0, size ))) return FALSE;
 499     if (envpath) strcpy( path, envpath );
 500     else if (!GetEnvironmentVariableA( "PATH", path, size )) goto done;
 501     next = path;
 502     while (!ret && next)
 503     {
 504         LPSTR cur = next;
 505         while (*cur == ';') cur++;
 506         if (!*cur) break;
 507         next = strchr( cur, ';' );
 508         if (next) *next++ = '\0';
 509         if (!(buffer = HeapAlloc( GetProcessHeap(), 0, strlen(cur) + len + 2)))
 510             goto done;
 511         strcpy( buffer, cur );
 512         strcat( buffer, "\\" );
 513         strcat( buffer, name );
 514         ret = DOSFS_GetFullName( buffer, TRUE, full_name );
 515         HeapFree( GetProcessHeap(), 0, buffer );
 516     }
 517
 518 done:
 519     HeapFree( GetProcessHeap(), 0, path );
 520     return ret;
 521 }
 522
 523
 524 /***********************************************************************
 525  *           DIR_TryModulePath
 526  *
 527  * Helper function for DIR_SearchPath.
 528  */
 529 static BOOL DIR_TryModulePath( LPCSTR name, DOS_FULL_NAME *full_name, BOOL win32 )
 530 {
 531     /* FIXME: for now, GetModuleFileNameA can't return more */
 532     /* than OFS_MAXPATHNAME. This may change with Win32. */
 533
 534     char buffer[OFS_MAXPATHNAME];
 535     LPSTR p;
 536
 537     if (!win32)
 538     {
 539         if (!GetCurrentTask()) return FALSE;
 540         if (!GetModuleFileName16( GetCurrentTask(), buffer, sizeof(buffer) ))
 541                 buffer[0]='\0';
 542     } else {
 543         if (!GetModuleFileNameA( 0, buffer, sizeof(buffer) ))
 544                 buffer[0]='\0';
 545     }
 546     if (!(p = strrchr( buffer, '\\' ))) return FALSE;
 547     if (sizeof(buffer) - (++p - buffer) <= strlen(name)) return FALSE;
 548     strcpy( p, name );
 549     return DOSFS_GetFullName( buffer, TRUE, full_name );
 550 }
 551
 552
 553 /***********************************************************************
 554  *           DIR_SearchPath
 555  *
 556  * Implementation of SearchPathA. 'win32' specifies whether the search
 557  * order is Win16 (module path last) or Win32 (module path first).
 558  *
 559  * FIXME: should return long path names.
 560  */
 561 DWORD DIR_SearchPath( LPCSTR path, LPCSTR name, LPCSTR ext,
 562                       DOS_FULL_NAME *full_name, BOOL win32 )
 563 {
 564     LPCSTR p;
 565     LPSTR tmp = NULL;
 566     BOOL ret = TRUE;
 567
 568     /* First check the supplied parameters */
 569
 570     p = strrchr( name, '.' );
 571     if (p && !strchr( p, '/' ) && !strchr( p, '\\' ))
 572         ext = NULL;  /* Ignore the specified extension */
 573     if ((*name && (name[1] == ':')) ||
 574         strchr( name, '/' ) || strchr( name, '\\' ))
 575         path = NULL;  /* Ignore path if name already contains a path */
 576     if (path && !*path) path = NULL;  /* Ignore empty path */
 577
 578     /* Allocate a buffer for the file name and extension */
 579
 580     if (ext)
 581     {
 582         DWORD len = strlen(name) + strlen(ext);
 583         if (!(tmp = HeapAlloc( GetProcessHeap(), 0, len + 1 )))
 584         {
 585             SetLastError( ERROR_OUTOFMEMORY );
 586             return 0;
 587         }
 588         strcpy( tmp, name );
 589         strcat( tmp, ext );
 590         name = tmp;
 591     }
 592
 593     /* If the name contains an explicit path, everything's easy */
 594
 595     if ((*name && (name[1] == ':')) || strchr( name, '/' ) || strchr( name, '\\' ))
 596     {
 597         ret = DOSFS_GetFullName( name, TRUE, full_name );
 598         goto done;
 599     }
 600
 601     /* Search in the specified path */
 602
 603     if (path)
 604     {
 605         ret = DIR_TryEnvironmentPath( name, full_name, path );
 606         goto done;
 607     }
 608
 609     /* Try the path of the current executable (for Win32 search order) */
 610
 611     if (win32 && DIR_TryModulePath( name, full_name, win32 )) goto done;
 612
 613     /* Try the current directory */
 614
 615     if (DOSFS_GetFullName( name, TRUE, full_name )) goto done;
 616
 617     /* Try the Windows system directory */
 618
 619     if (DIR_TryPath( &DIR_System, name, full_name ))
 620         goto done;
 621
 622     /* Try the Windows directory */
 623
 624     if (DIR_TryPath( &DIR_Windows, name, full_name ))
 625         goto done;
 626
 627     /* Try the path of the current executable (for Win16 search order) */
 628
 629     if (!win32 && DIR_TryModulePath( name, full_name, win32 )) goto done;
 630
 631     /* Try all directories in path */
 632
 633     ret = DIR_TryEnvironmentPath( name, full_name, NULL );
 634
 635 done:
 636     if (tmp) HeapFree( GetProcessHeap(), 0, tmp );
 637     return ret;
 638 }
 639
 640
 641 /***********************************************************************
 642  * SearchPathA [KERNEL32.447]
 643  *
 644  * Searches for a specified file in the search path.
 645  *
 646  * PARAMS
 647  *    path      [I] Path to search
 648  *    name      [I] Filename to search for.
 649  *    ext       [I] File extension to append to file name. The first
 650  *                  character must be a period. This parameter is
 651  *                  specified only if the filename given does not
 652  *                  contain an extension.
 653  *    buflen    [I] size of buffer, in characters
 654  *    buffer    [O] buffer for found filename
 655  *    lastpart  [O] address of pointer to last used character in
 656  *                  buffer (the final '\')
 657  *
 658  * RETURNS
 659  *    Success: length of string copied into buffer, not including
 660  *             terminating null character. If the filename found is
 661  *             longer than the length of the buffer, the length of the
 662  *             filename is returned.
 663  *    Failure: Zero
 664  *
 665  * NOTES
 666  *    If the file is not found, calls SetLastError(ERROR_FILE_NOT_FOUND)
 667  *    (tested on NT 4.0)
 668  */
 669 DWORD WINAPI SearchPathA( LPCSTR path, LPCSTR name, LPCSTR ext, DWORD buflen,
 670                             LPSTR buffer, LPSTR *lastpart )
 671 {
 672     LPSTR p, res;
 673     DOS_FULL_NAME full_name;
 674
 675     if (!DIR_SearchPath( path, name, ext, &full_name, TRUE ))
 676     {
 677         SetLastError(ERROR_FILE_NOT_FOUND);
 678         return 0;
 679     }
 680     lstrcpynA( buffer, full_name.short_name, buflen );
 681     res = full_name.long_name +
 682               strlen(DRIVE_GetRoot( full_name.short_name[0] - 'A' ));
 683     while (*res == '/') res++;
 684     if (buflen)
 685     {
 686         if (buflen > 3) lstrcpynA( buffer + 3, res, buflen - 3 );
 687         for (p = buffer; *p; p++) if (*p == '/') *p = '\\';
 688         if (lastpart) *lastpart = strrchr( buffer, '\\' ) + 1;
 689     }
 690     TRACE("Returning %d\n", strlen(res) + 3 );
 691     return strlen(res) + 3;
 692 }
 693
 694
 695 /***********************************************************************
 696  *           SearchPathW   (KERNEL32.448)
 697  */
 698 DWORD WINAPI SearchPathW( LPCWSTR path, LPCWSTR name, LPCWSTR ext,
 699                             DWORD buflen, LPWSTR buffer, LPWSTR *lastpart )
 700 {
 701     LPWSTR p;
 702     LPSTR res;
 703     DOS_FULL_NAME full_name;
 704
 705     LPSTR pathA = HEAP_strdupWtoA( GetProcessHeap(), 0, path );
 706     LPSTR nameA = HEAP_strdupWtoA( GetProcessHeap(), 0, name );
 707     LPSTR extA  = HEAP_strdupWtoA( GetProcessHeap(), 0, ext );
 708     DWORD ret = DIR_SearchPath( pathA, nameA, extA, &full_name, TRUE );
 709     HeapFree( GetProcessHeap(), 0, extA );
 710     HeapFree( GetProcessHeap(), 0, nameA );
 711     HeapFree( GetProcessHeap(), 0, pathA );
 712     if (!ret) return 0;
 713
 714     lstrcpynAtoW( buffer, full_name.short_name, buflen );
 715     res = full_name.long_name +
 716               strlen(DRIVE_GetRoot( full_name.short_name[0] - 'A' ));
 717     while (*res == '/') res++;
 718     if (buflen)
 719     {
 720         if (buflen > 3) lstrcpynAtoW( buffer + 3, res, buflen - 3 );
 721         for (p = buffer; *p; p++) if (*p == '/') *p = '\\';
 722         if (lastpart)
 723         {
 724             for (p = *lastpart = buffer; *p; p++)
 725                 if (*p == '\\') *lastpart = p + 1;
 726         }
 727     }
 728     return strlen(res) + 3;
 729 }
 730
 731