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 "windef.h"
  24 #include "wingdi.h"
  25 #include "wine/winuser16.h"
  26 #include "winerror.h"
  27 #include "drive.h"
  28 #include "file.h"
  29 #include "heap.h"
  30 #include "msdos.h"
  31 #include "options.h"
  32 #include "debugtools.h"
  33
  34 DEFAULT_DEBUG_CHANNEL(dosfs);
  35 DECLARE_DEBUG_CHANNEL(file);
  36
  37 static DOS_FULL_NAME DIR_Windows;
  38 static DOS_FULL_NAME DIR_System;
  39
  40
  41 /***********************************************************************
  42  *           DIR_GetPath
  43  *
  44  * Get a path name from the wine.ini file and make sure it is valid.
  45  */
  46 static int DIR_GetPath( const char *keyname, const char *defval,
  47                         DOS_FULL_NAME *full_name )
  48 {
  49     char path[MAX_PATHNAME_LEN];
  50     BY_HANDLE_FILE_INFORMATION info;
  51
  52     PROFILE_GetWineIniString( "wine", keyname, defval, path, sizeof(path) );
  53     if (!DOSFS_GetFullName( path, TRUE, full_name ) ||
  54         !FILE_Stat( full_name->long_name, &info ) ||
  55         !(info.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY))
  56     {
  57         MESSAGE("Invalid path '%s' for %s directory\n", path, keyname);
  58         return 0;
  59     }
  60     return 1;
  61 }
  62
  63
  64 /***********************************************************************
  65  *           DIR_Init
  66  */
  67 int DIR_Init(void)
  68 {
  69     char path[MAX_PATHNAME_LEN];
  70     DOS_FULL_NAME tmp_dir, profile_dir;
  71     int drive;
  72     const char *cwd;
  73
  74     if (!getcwd( path, MAX_PATHNAME_LEN ))
  75     {
  76         perror( "Could not get current directory" );
  77         return 0;
  78     }
  79     cwd = path;
  80     if ((drive = DRIVE_FindDriveRoot( &cwd )) == -1)
  81     {
  82         MESSAGE("Warning: could not find wine.conf [Drive x] entry "
  83             "for current working directory %s; "
  84             "starting in windows directory.\n", cwd );
  85     }
  86     else
  87     {
  88         DRIVE_SetCurrentDrive( drive );
  89         DRIVE_Chdir( drive, cwd );
  90     }
  91
  92     if (!(DIR_GetPath( "windows", "c:\\windows", &DIR_Windows )) ||
  93         !(DIR_GetPath( "system", "c:\\windows\\system", &DIR_System )) ||
  94         !(DIR_GetPath( "temp", "c:\\windows", &tmp_dir )))
  95     {
  96         PROFILE_UsageWineIni();
  97         return 0;
  98     }
  99     if (-1 == access( tmp_dir.long_name, W_OK ))
 100     {
 101         if (errno==EACCES)
 102         {
 103                 MESSAGE("Warning: The Temporary Directory (as specified in your configuration file) is NOT writeable.\n");
 104                 PROFILE_UsageWineIni();
 105         }
 106         else
 107                 MESSAGE("Warning: Access to Temporary Directory failed (%s).\n",
 108                     strerror(errno));
 109     }
 110
 111     if (drive == -1)
 112     {
 113         drive = DIR_Windows.drive;
 114         DRIVE_SetCurrentDrive( drive );
 115         DRIVE_Chdir( drive, DIR_Windows.short_name + 2 );
 116     }
 117
 118     PROFILE_GetWineIniString("wine", "path", "c:\\windows;c:\\windows\\system",
 119                              path, sizeof(path) );
 120     if (strchr(path, '/'))
 121     {
 122         MESSAGE("No '/' allowed in [wine] 'Path=' statement of wine.conf !\n");
 123         PROFILE_UsageWineIni();
 124         ExitProcess(1);
 125     }
 126
 127     /* Set the environment variables */
 128
 129     SetEnvironmentVariableA( "PATH", path );
 130     SetEnvironmentVariableA( "TEMP", tmp_dir.short_name );
 131     SetEnvironmentVariableA( "windir", DIR_Windows.short_name );
 132     SetEnvironmentVariableA( "winsysdir", DIR_System.short_name );
 133
 134     /* set COMSPEC only if it doesn't exist already */
 135     if (!GetEnvironmentVariableA( "COMSPEC", NULL, 0 ))
 136         SetEnvironmentVariableA( "COMSPEC", "c:\\command.com" );
 137
 138     TRACE("WindowsDir = %s (%s)\n",
 139           DIR_Windows.short_name, DIR_Windows.long_name );
 140     TRACE("SystemDir  = %s (%s)\n",
 141           DIR_System.short_name, DIR_System.long_name );
 142     TRACE("TempDir    = %s (%s)\n",
 143           tmp_dir.short_name, tmp_dir.long_name );
 144     TRACE("Path       = %s\n", path );
 145     TRACE("Cwd        = %c:\\%s\n",
 146           'A' + drive, DRIVE_GetDosCwd( drive ) );
 147
 148     if (DIR_GetPath( "profile", "", &profile_dir ))
 149     {
 150         TRACE("USERPROFILE= %s\n", profile_dir.short_name );
 151         SetEnvironmentVariableA( "USERPROFILE", profile_dir.short_name );
 152     }
 153
 154     TRACE("SYSTEMROOT = %s\n", DIR_Windows.short_name );
 155     SetEnvironmentVariableA( "SYSTEMROOT", DIR_Windows.short_name );
 156
 157     return 1;
 158 }
 159
 160
 161 /***********************************************************************
 162  *           GetTempPathA   (KERNEL32.292)
 163  */
 164 UINT WINAPI GetTempPathA( UINT count, LPSTR path )
 165 {
 166     UINT ret;
 167     if (!(ret = GetEnvironmentVariableA( "TMP", path, count )))
 168         if (!(ret = GetEnvironmentVariableA( "TEMP", path, count )))
 169             if (!(ret = GetCurrentDirectoryA( 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  *           GetTempPathW   (KERNEL32.293)
 182  */
 183 UINT WINAPI GetTempPathW( UINT count, LPWSTR path )
 184 {
 185     static const WCHAR tmp[]  = { 'T', 'M', 'P', 0 };
 186     static const WCHAR temp[] = { 'T', 'E', 'M', 'P', 0 };
 187     UINT ret;
 188     if (!(ret = GetEnvironmentVariableW( tmp, path, count )))
 189         if (!(ret = GetEnvironmentVariableW( temp, path, count )))
 190             if (!(ret = GetCurrentDirectoryW( count, path )))
 191                 return 0;
 192     if (count && (ret < count - 1) && (path[ret-1] != '\\'))
 193     {
 194         path[ret++] = '\\';
 195         path[ret]   = '\0';
 196     }
 197     return ret;
 198 }
 199
 200
 201 /***********************************************************************
 202  *           DIR_GetWindowsUnixDir
 203  */
 204 UINT DIR_GetWindowsUnixDir( LPSTR path, UINT count )
 205 {
 206     if (path) lstrcpynA( path, DIR_Windows.long_name, count );
 207     return strlen( DIR_Windows.long_name );
 208 }
 209
 210
 211 /***********************************************************************
 212  *           DIR_GetSystemUnixDir
 213  */
 214 UINT DIR_GetSystemUnixDir( LPSTR path, UINT count )
 215 {
 216     if (path) lstrcpynA( path, DIR_System.long_name, count );
 217     return strlen( DIR_System.long_name );
 218 }
 219
 220
 221 /***********************************************************************
 222  *           GetTempDrive   (KERNEL.92)
 223  * A closer look at krnl386.exe shows what the SDK doesn't mention:
 224  *
 225  * returns:
 226  *   AL: driveletter
 227  *   AH: ':'            - yes, some kernel code even does stosw with
 228  *                            the returned AX.
 229  *   DX: 1 for success
 230  */
 231 UINT WINAPI GetTempDrive( BYTE ignored )
 232 {
 233     char *buffer;
 234     BYTE ret;
 235     UINT len = GetTempPathA( 0, NULL );
 236
 237     if (!(buffer = HeapAlloc( GetProcessHeap(), 0, len + 1 )) )
 238         ret = DRIVE_GetCurrentDrive() + 'A';
 239     else
 240     {
 241         /* FIXME: apparently Windows does something with the ignored byte */
 242         if (!GetTempPathA( len, buffer )) buffer[0] = 'C';
 243         ret = toupper(buffer[0]);
 244         HeapFree( GetProcessHeap(), 0, buffer );
 245     }
 246     return MAKELONG( ret | (':' << 8), 1 );
 247 }
 248
 249
 250 /***********************************************************************
 251  *           GetWindowsDirectory16   (KERNEL.134)
 252  */
 253 UINT16 WINAPI GetWindowsDirectory16( LPSTR path, UINT16 count )
 254 {
 255     return (UINT16)GetWindowsDirectoryA( path, count );
 256 }
 257
 258
 259 /***********************************************************************
 260  *           GetWindowsDirectoryA   (KERNEL32.311)
 261  */
 262 UINT WINAPI GetWindowsDirectoryA( LPSTR path, UINT count )
 263 {
 264     if (path) lstrcpynA( path, DIR_Windows.short_name, count );
 265     return strlen( DIR_Windows.short_name );
 266 }
 267
 268
 269 /***********************************************************************
 270  *           GetWindowsDirectoryW   (KERNEL32.312)
 271  */
 272 UINT WINAPI GetWindowsDirectoryW( LPWSTR path, UINT count )
 273 {
 274     UINT len = MultiByteToWideChar( CP_ACP, 0, DIR_Windows.short_name, -1, NULL, 0 );
 275     if (path && count)
 276     {
 277         if (!MultiByteToWideChar( CP_ACP, 0, DIR_Windows.short_name, -1, path, count ))
 278             path[count-1] = 0;
 279     }
 280     return len;
 281 }
 282
 283
 284 /***********************************************************************
 285  *           GetSystemWindowsDirectoryA   (KERNEL32) W2K, TS4.0SP4
 286  */
 287 UINT WINAPI GetSystemWindowsDirectoryA( LPSTR path, UINT count )
 288 {
 289     return GetWindowsDirectoryA( path, count );
 290 }
 291
 292
 293 /***********************************************************************
 294  *           GetSystemWindowsDirectoryW   (KERNEL32) W2K, TS4.0SP4
 295  */
 296 UINT WINAPI GetSystemWindowsDirectoryW( LPWSTR path, UINT count )
 297 {
 298     return GetWindowsDirectoryW( path, count );
 299 }
 300
 301
 302 /***********************************************************************
 303  *           GetSystemDirectory16   (KERNEL.135)
 304  */
 305 UINT16 WINAPI GetSystemDirectory16( LPSTR path, UINT16 count )
 306 {
 307     return (UINT16)GetSystemDirectoryA( path, count );
 308 }
 309
 310
 311 /***********************************************************************
 312  *           GetSystemDirectoryA   (KERNEL32.282)
 313  */
 314 UINT WINAPI GetSystemDirectoryA( LPSTR path, UINT count )
 315 {
 316     if (path) lstrcpynA( path, DIR_System.short_name, count );
 317     return strlen( DIR_System.short_name );
 318 }
 319
 320
 321 /***********************************************************************
 322  *           GetSystemDirectoryW   (KERNEL32.283)
 323  */
 324 UINT WINAPI GetSystemDirectoryW( LPWSTR path, UINT count )
 325 {
 326     UINT len = MultiByteToWideChar( CP_ACP, 0, DIR_System.short_name, -1, NULL, 0 );
 327     if (path && count)
 328     {
 329         if (!MultiByteToWideChar( CP_ACP, 0, DIR_System.short_name, -1, path, count ))
 330             path[count-1] = 0;
 331     }
 332     return len;
 333 }
 334
 335
 336 /***********************************************************************
 337  *           CreateDirectory16   (KERNEL.144)
 338  */
 339 BOOL16 WINAPI CreateDirectory16( LPCSTR path, LPVOID dummy )
 340 {
 341     TRACE_(file)("(%s,%p)\n", path, dummy );
 342     return (BOOL16)CreateDirectoryA( path, NULL );
 343 }
 344
 345
 346 /***********************************************************************
 347  *           CreateDirectoryA   (KERNEL32.39)
 348  * RETURNS:
 349  *      TRUE : success
 350  *      FALSE : failure
 351  *              ERROR_DISK_FULL:        on full disk
 352  *              ERROR_ALREADY_EXISTS:   if directory name exists (even as file)
 353  *              ERROR_ACCESS_DENIED:    on permission problems
 354  *              ERROR_FILENAME_EXCED_RANGE: too long filename(s)
 355  */
 356 BOOL WINAPI CreateDirectoryA( LPCSTR path,
 357                                   LPSECURITY_ATTRIBUTES lpsecattribs )
 358 {
 359     DOS_FULL_NAME full_name;
 360
 361     TRACE_(file)("(%s,%p)\n", path, lpsecattribs );
 362     if (DOSFS_GetDevice( path ))
 363     {
 364         TRACE_(file)("cannot use device '%s'!\n",path);
 365         SetLastError( ERROR_ACCESS_DENIED );
 366         return FALSE;
 367     }
 368     if (!DOSFS_GetFullName( path, FALSE, &full_name )) return 0;
 369     if (mkdir( full_name.long_name, 0777 ) == -1) {
 370         WARN_(file)("Errno %i trying to create directory %s.\n", errno, full_name.long_name);
 371         /* the FILE_SetDosError() generated error codes don't match the
 372          * CreateDirectory ones for some errnos */
 373         switch (errno) {
 374         case EEXIST: SetLastError(ERROR_ALREADY_EXISTS); break;
 375         case ENOSPC: SetLastError(ERROR_DISK_FULL); break;
 376         default: FILE_SetDosError();break;
 377         }
 378         return FALSE;
 379     }
 380     return TRUE;
 381 }
 382
 383
 384 /***********************************************************************
 385  *           CreateDirectoryW   (KERNEL32.42)
 386  */
 387 BOOL WINAPI CreateDirectoryW( LPCWSTR path,
 388                                   LPSECURITY_ATTRIBUTES lpsecattribs )
 389 {
 390     LPSTR xpath = HEAP_strdupWtoA( GetProcessHeap(), 0, path );
 391     BOOL ret = CreateDirectoryA( xpath, lpsecattribs );
 392     HeapFree( GetProcessHeap(), 0, xpath );
 393     return ret;
 394 }
 395
 396
 397 /***********************************************************************
 398  *           CreateDirectoryExA   (KERNEL32.40)
 399  */
 400 BOOL WINAPI CreateDirectoryExA( LPCSTR template, LPCSTR path,
 401                                     LPSECURITY_ATTRIBUTES lpsecattribs)
 402 {
 403     return CreateDirectoryA(path,lpsecattribs);
 404 }
 405
 406
 407 /***********************************************************************
 408  *           CreateDirectoryExW   (KERNEL32.41)
 409  */
 410 BOOL WINAPI CreateDirectoryExW( LPCWSTR template, LPCWSTR path,
 411                                     LPSECURITY_ATTRIBUTES lpsecattribs)
 412 {
 413     return CreateDirectoryW(path,lpsecattribs);
 414 }
 415
 416
 417 /***********************************************************************
 418  *           RemoveDirectory16   (KERNEL)
 419  */
 420 BOOL16 WINAPI RemoveDirectory16( LPCSTR path )
 421 {
 422     return (BOOL16)RemoveDirectoryA( path );
 423 }
 424
 425
 426 /***********************************************************************
 427  *           RemoveDirectoryA   (KERNEL32.437)
 428  */
 429 BOOL WINAPI RemoveDirectoryA( LPCSTR path )
 430 {
 431     DOS_FULL_NAME full_name;
 432
 433     TRACE_(file)("'%s'\n", path );
 434
 435     if (DOSFS_GetDevice( path ))
 436     {
 437         TRACE_(file)("cannot remove device '%s'!\n", path);
 438         SetLastError( ERROR_FILE_NOT_FOUND );
 439         return FALSE;
 440     }
 441     if (!DOSFS_GetFullName( path, TRUE, &full_name )) return FALSE;
 442     if (rmdir( full_name.long_name ) == -1)
 443     {
 444         FILE_SetDosError();
 445         return FALSE;
 446     }
 447     return TRUE;
 448 }
 449
 450
 451 /***********************************************************************
 452  *           RemoveDirectoryW   (KERNEL32.438)
 453  */
 454 BOOL WINAPI RemoveDirectoryW( LPCWSTR path )
 455 {
 456     LPSTR xpath = HEAP_strdupWtoA( GetProcessHeap(), 0, path );
 457     BOOL ret = RemoveDirectoryA( xpath );
 458     HeapFree( GetProcessHeap(), 0, xpath );
 459     return ret;
 460 }
 461
 462
 463 /***********************************************************************
 464  *           DIR_TryPath
 465  *
 466  * Helper function for DIR_SearchPath.
 467  */
 468 static BOOL DIR_TryPath( const DOS_FULL_NAME *dir, LPCSTR name,
 469                            DOS_FULL_NAME *full_name )
 470 {
 471     LPSTR p_l = full_name->long_name + strlen(dir->long_name) + 1;
 472     LPSTR p_s = full_name->short_name + strlen(dir->short_name) + 1;
 473
 474     if ((p_s >= full_name->short_name + sizeof(full_name->short_name) - 14) ||
 475         (p_l >= full_name->long_name + sizeof(full_name->long_name) - 1))
 476     {
 477         SetLastError( ERROR_PATH_NOT_FOUND );
 478         return FALSE;
 479     }
 480     if (!DOSFS_FindUnixName( dir->long_name, name, p_l,
 481                    sizeof(full_name->long_name) - (p_l - full_name->long_name),
 482                    p_s, !(DRIVE_GetFlags(dir->drive) & DRIVE_CASE_SENSITIVE) ))
 483         return FALSE;
 484     strcpy( full_name->long_name, dir->long_name );
 485     p_l[-1] = '/';
 486     strcpy( full_name->short_name, dir->short_name );
 487     p_s[-1] = '\\';
 488     return TRUE;
 489 }
 490
 491
 492 /***********************************************************************
 493  *           DIR_TryEnvironmentPath
 494  *
 495  * Helper function for DIR_SearchPath.
 496  * Search in the specified path, or in $PATH if NULL.
 497  */
 498 static BOOL DIR_TryEnvironmentPath( LPCSTR name, DOS_FULL_NAME *full_name, LPCSTR envpath )
 499 {
 500     LPSTR path, next, buffer;
 501     BOOL ret = FALSE;
 502     INT len = strlen(name);
 503     DWORD size;
 504
 505     size = envpath ? strlen(envpath)+1 : GetEnvironmentVariableA( "PATH", NULL, 0 );
 506     if (!size) return FALSE;
 507     if (!(path = HeapAlloc( GetProcessHeap(), 0, size ))) return FALSE;
 508     if (envpath) strcpy( path, envpath );
 509     else if (!GetEnvironmentVariableA( "PATH", path, size )) goto done;
 510     next = path;
 511     while (!ret && next)
 512     {
 513         LPSTR cur = next;
 514         while (*cur == ';') cur++;
 515         if (!*cur) break;
 516         next = strchr( cur, ';' );
 517         if (next) *next++ = '\0';
 518         if (!(buffer = HeapAlloc( GetProcessHeap(), 0, strlen(cur) + len + 2)))
 519             goto done;
 520         strcpy( buffer, cur );
 521         strcat( buffer, "\\" );
 522         strcat( buffer, name );
 523         ret = DOSFS_GetFullName( buffer, TRUE, full_name );
 524         HeapFree( GetProcessHeap(), 0, buffer );
 525     }
 526
 527 done:
 528     HeapFree( GetProcessHeap(), 0, path );
 529     return ret;
 530 }
 531
 532
 533 /***********************************************************************
 534  *           DIR_TryModulePath
 535  *
 536  * Helper function for DIR_SearchPath.
 537  */
 538 static BOOL DIR_TryModulePath( LPCSTR name, DOS_FULL_NAME *full_name, BOOL win32 )
 539 {
 540     /* FIXME: for now, GetModuleFileNameA can't return more */
 541     /* than OFS_MAXPATHNAME. This may change with Win32. */
 542
 543     char buffer[OFS_MAXPATHNAME];
 544     LPSTR p;
 545
 546     if (!win32)
 547     {
 548         if (!GetCurrentTask()) return FALSE;
 549         if (!GetModuleFileName16( GetCurrentTask(), buffer, sizeof(buffer) ))
 550                 buffer[0]='\0';
 551     } else {
 552         if (!GetModuleFileNameA( 0, buffer, sizeof(buffer) ))
 553                 buffer[0]='\0';
 554     }
 555     if (!(p = strrchr( buffer, '\\' ))) return FALSE;
 556     if (sizeof(buffer) - (++p - buffer) <= strlen(name)) return FALSE;
 557     strcpy( p, name );
 558     return DOSFS_GetFullName( buffer, TRUE, full_name );
 559 }
 560
 561
 562 /***********************************************************************
 563  *           DIR_SearchPath
 564  *
 565  * Implementation of SearchPathA. 'win32' specifies whether the search
 566  * order is Win16 (module path last) or Win32 (module path first).
 567  *
 568  * FIXME: should return long path names.
 569  */
 570 DWORD DIR_SearchPath( LPCSTR path, LPCSTR name, LPCSTR ext,
 571                       DOS_FULL_NAME *full_name, BOOL win32 )
 572 {
 573     LPCSTR p;
 574     LPSTR tmp = NULL;
 575     BOOL ret = TRUE;
 576
 577     /* First check the supplied parameters */
 578
 579     p = strrchr( name, '.' );
 580     if (p && !strchr( p, '/' ) && !strchr( p, '\\' ))
 581         ext = NULL;  /* Ignore the specified extension */
 582     if ((*name && (name[1] == ':')) ||
 583         strchr( name, '/' ) || strchr( name, '\\' ))
 584         path = NULL;  /* Ignore path if name already contains a path */
 585     if (path && !*path) path = NULL;  /* Ignore empty path */
 586
 587     /* Allocate a buffer for the file name and extension */
 588
 589     if (ext)
 590     {
 591         DWORD len = strlen(name) + strlen(ext);
 592         if (!(tmp = HeapAlloc( GetProcessHeap(), 0, len + 1 )))
 593         {
 594             SetLastError( ERROR_OUTOFMEMORY );
 595             return 0;
 596         }
 597         strcpy( tmp, name );
 598         strcat( tmp, ext );
 599         name = tmp;
 600     }
 601
 602     /* If the name contains an explicit path, everything's easy */
 603
 604     if ((*name && (name[1] == ':')) || strchr( name, '/' ) || strchr( name, '\\' ))
 605     {
 606         ret = DOSFS_GetFullName( name, TRUE, full_name );
 607         goto done;
 608     }
 609
 610     /* Search in the specified path */
 611
 612     if (path)
 613     {
 614         ret = DIR_TryEnvironmentPath( name, full_name, path );
 615         goto done;
 616     }
 617
 618     /* Try the path of the current executable (for Win32 search order) */
 619
 620     if (win32 && DIR_TryModulePath( name, full_name, win32 )) goto done;
 621
 622     /* Try the current directory */
 623
 624     if (DOSFS_GetFullName( name, TRUE, full_name )) goto done;
 625
 626     /* Try the Windows system directory */
 627
 628     if (DIR_TryPath( &DIR_System, name, full_name ))
 629         goto done;
 630
 631     /* Try the Windows directory */
 632
 633     if (DIR_TryPath( &DIR_Windows, name, full_name ))
 634         goto done;
 635
 636     /* Try the path of the current executable (for Win16 search order) */
 637
 638     if (!win32 && DIR_TryModulePath( name, full_name, win32 )) goto done;
 639
 640     /* Try all directories in path */
 641
 642     ret = DIR_TryEnvironmentPath( name, full_name, NULL );
 643
 644 done:
 645     if (tmp) HeapFree( GetProcessHeap(), 0, tmp );
 646     return ret;
 647 }
 648
 649
 650 /***********************************************************************
 651  * SearchPathA [KERNEL32.447]
 652  *
 653  * Searches for a specified file in the search path.
 654  *
 655  * PARAMS
 656  *    path      [I] Path to search
 657  *    name      [I] Filename to search for.
 658  *    ext       [I] File extension to append to file name. The first
 659  *                  character must be a period. This parameter is
 660  *                  specified only if the filename given does not
 661  *                  contain an extension.
 662  *    buflen    [I] size of buffer, in characters
 663  *    buffer    [O] buffer for found filename
 664  *    lastpart  [O] address of pointer to last used character in
 665  *                  buffer (the final '\')
 666  *
 667  * RETURNS
 668  *    Success: length of string copied into buffer, not including
 669  *             terminating null character. If the filename found is
 670  *             longer than the length of the buffer, the length of the
 671  *             filename is returned.
 672  *    Failure: Zero
 673  *
 674  * NOTES
 675  *    If the file is not found, calls SetLastError(ERROR_FILE_NOT_FOUND)
 676  *    (tested on NT 4.0)
 677  */
 678 DWORD WINAPI SearchPathA( LPCSTR path, LPCSTR name, LPCSTR ext, DWORD buflen,
 679                             LPSTR buffer, LPSTR *lastpart )
 680 {
 681     LPSTR p, res;
 682     DOS_FULL_NAME full_name;
 683
 684     if (!DIR_SearchPath( path, name, ext, &full_name, TRUE ))
 685     {
 686         SetLastError(ERROR_FILE_NOT_FOUND);
 687         return 0;
 688     }
 689     lstrcpynA( buffer, full_name.short_name, buflen );
 690     res = full_name.long_name +
 691               strlen(DRIVE_GetRoot( full_name.short_name[0] - 'A' ));
 692     while (*res == '/') res++;
 693     if (buflen)
 694     {
 695         if (buflen > 3) lstrcpynA( buffer + 3, res, buflen - 3 );
 696         for (p = buffer; *p; p++) if (*p == '/') *p = '\\';
 697         if (lastpart) *lastpart = strrchr( buffer, '\\' ) + 1;
 698     }
 699     TRACE("Returning %d\n", strlen(res) + 3 );
 700     return strlen(res) + 3;
 701 }
 702
 703
 704 /***********************************************************************
 705  *           SearchPathW   (KERNEL32.448)
 706  */
 707 DWORD WINAPI SearchPathW( LPCWSTR path, LPCWSTR name, LPCWSTR ext,
 708                             DWORD buflen, LPWSTR buffer, LPWSTR *lastpart )
 709 {
 710     LPWSTR p;
 711     LPSTR res;
 712     DOS_FULL_NAME full_name;
 713
 714     LPSTR pathA = HEAP_strdupWtoA( GetProcessHeap(), 0, path );
 715     LPSTR nameA = HEAP_strdupWtoA( GetProcessHeap(), 0, name );
 716     LPSTR extA  = HEAP_strdupWtoA( GetProcessHeap(), 0, ext );
 717     DWORD ret = DIR_SearchPath( pathA, nameA, extA, &full_name, TRUE );
 718     HeapFree( GetProcessHeap(), 0, extA );
 719     HeapFree( GetProcessHeap(), 0, nameA );
 720     HeapFree( GetProcessHeap(), 0, pathA );
 721     if (!ret) return 0;
 722
 723     if (buflen > 0 && !MultiByteToWideChar( CP_ACP, 0, full_name.short_name, -1, buffer, buflen ))
 724         buffer[buflen-1] = 0;
 725     res = full_name.long_name +
 726               strlen(DRIVE_GetRoot( full_name.short_name[0] - 'A' ));
 727     while (*res == '/') res++;
 728     if (buflen)
 729     {
 730         if (buflen > 3)
 731         {
 732             if (!MultiByteToWideChar( CP_ACP, 0, res, -1, buffer+3, buflen-3 ))
 733                 buffer[buflen-1] = 0;
 734         }
 735         for (p = buffer; *p; p++) if (*p == '/') *p = '\\';
 736         if (lastpart)
 737         {
 738             for (p = *lastpart = buffer; *p; p++)
 739                 if (*p == '\\') *lastpart = p + 1;
 740         }
 741     }
 742     return strlen(res) + 3;
 743 }
 744
 745