reactos/lib/kernel32/file/volume.c

   1 /* $Id: volume.c,v 1.30 2003/07/20 09:40:13 hbirr Exp $
   2  *
   3  * COPYRIGHT:       See COPYING in the top level directory
   4  * PROJECT:         ReactOS system libraries
   5  * FILE:            lib/kernel32/file/volume.c
   6  * PURPOSE:         File volume functions
   7  * PROGRAMMER:      Ariadne ( ariadne@xs4all.nl)
   8  *                  Erik Bos, Alexandre Julliard :
   9  *                      GetLogicalDriveStringsA,
  10  *                      GetLogicalDriveStringsW, GetLogicalDrives
  11  * UPDATE HISTORY:
  12  *                  Created 01/11/98
  13  */
  14 //WINE copyright notice:
  15 /*
  16  * DOS drives handling functions
  17  *
  18  * Copyright 1993 Erik Bos
  19  * Copyright 1996 Alexandre Julliard
  20  */
  21
  22 #include <k32.h>
  23
  24 #define NDEBUG
  25 #include <kernel32/kernel32.h>
  26
  27
  28 #define MAX_DOS_DRIVES 26
  29
  30
  31 static HANDLE
  32 InternalOpenDirW(LPCWSTR DirName,
  33                  BOOLEAN Write)
  34 {
  35   UNICODE_STRING NtPathU;
  36   OBJECT_ATTRIBUTES ObjectAttributes;
  37   NTSTATUS errCode;
  38   IO_STATUS_BLOCK IoStatusBlock;
  39   HANDLE hFile;
  40
  41   if (!RtlDosPathNameToNtPathName_U((LPWSTR)DirName,
  42                                     &NtPathU,
  43                                     NULL,
  44                                     NULL))
  45     {
  46         DPRINT("Invalid path\n");
  47         SetLastError(ERROR_BAD_PATHNAME);
  48         return INVALID_HANDLE_VALUE;
  49     }
  50
  51     InitializeObjectAttributes(&ObjectAttributes,
  52                                &NtPathU,
  53                                Write ? FILE_WRITE_ATTRIBUTES : FILE_READ_ATTRIBUTES,
  54                                NULL,
  55                                NULL);
  56
  57     errCode = NtCreateFile (&hFile,
  58                             Write ? FILE_GENERIC_WRITE : FILE_GENERIC_READ,
  59                             &ObjectAttributes,
  60                             &IoStatusBlock,
  61                             NULL,
  62                             0,
  63                             FILE_SHARE_READ|FILE_SHARE_WRITE,
  64                             FILE_OPEN,
  65                             0,
  66                             NULL,
  67                             0);
  68
  69     RtlFreeUnicodeString(&NtPathU);
  70
  71     if (!NT_SUCCESS(errCode))
  72     {
  73         SetLastErrorByStatus (errCode);
  74         return INVALID_HANDLE_VALUE;
  75     }
  76     return hFile;
  77 }
  78
  79
  80 /*
  81  * @implemented
  82  */
  83 DWORD STDCALL
  84 GetLogicalDriveStringsA(DWORD nBufferLength,
  85                         LPSTR lpBuffer)
  86 {
  87    DWORD drive, count;
  88    DWORD dwDriveMap;
  89
  90    dwDriveMap = SharedUserData->DosDeviceMap;
  91
  92    for (drive = count = 0; drive < MAX_DOS_DRIVES; drive++)
  93      {
  94         if (dwDriveMap & (1<<drive))
  95            count++;
  96      }
  97
  98
  99    if (count * 4 * sizeof(char) <= nBufferLength)
 100      {
 101         LPSTR p = lpBuffer;
 102
 103         for (drive = 0; drive < MAX_DOS_DRIVES; drive++)
 104           if (dwDriveMap & (1<<drive))
 105           {
 106              *p++ = 'A' + drive;
 107              *p++ = ':';
 108              *p++ = '\\';
 109              *p++ = '\0';
 110           }
 111         *p = '\0';
 112      }
 113     return (count * 4 * sizeof(char));
 114 }
 115
 116
 117 /*
 118  * @implemented
 119  */
 120 DWORD STDCALL
 121 GetLogicalDriveStringsW(DWORD nBufferLength,
 122                         LPWSTR lpBuffer)
 123 {
 124    DWORD drive, count;
 125    DWORD dwDriveMap;
 126
 127    dwDriveMap = SharedUserData->DosDeviceMap;
 128
 129    for (drive = count = 0; drive < MAX_DOS_DRIVES; drive++)
 130      {
 131         if (dwDriveMap & (1<<drive))
 132            count++;
 133      }
 134
 135     if (count * 4 * sizeof(WCHAR) <=  nBufferLength)
 136     {
 137         LPWSTR p = lpBuffer;
 138         for (drive = 0; drive < MAX_DOS_DRIVES; drive++)
 139             if (dwDriveMap & (1<<drive))
 140             {
 141                 *p++ = (WCHAR)('A' + drive);
 142                 *p++ = (WCHAR)':';
 143                 *p++ = (WCHAR)'\\';
 144                 *p++ = (WCHAR)'\0';
 145             }
 146         *p = (WCHAR)'\0';
 147     }
 148     return (count * 4 * sizeof(WCHAR));
 149 }
 150
 151
 152 /*
 153  * @implemented
 154  */
 155 DWORD STDCALL
 156 GetLogicalDrives(VOID)
 157 {
 158   return(SharedUserData->DosDeviceMap);
 159 }
 160
 161
 162 /*
 163  * @implemented
 164  */
 165 WINBOOL STDCALL
 166 GetDiskFreeSpaceA (
 167         LPCSTR  lpRootPathName,
 168         LPDWORD lpSectorsPerCluster,
 169         LPDWORD lpBytesPerSector,
 170         LPDWORD lpNumberOfFreeClusters,
 171         LPDWORD lpTotalNumberOfClusters
 172         )
 173 {
 174         UNICODE_STRING RootPathNameU;
 175         ANSI_STRING RootPathName;
 176         WINBOOL Result;
 177
 178         RtlInitAnsiString (&RootPathName,
 179                            (LPSTR)lpRootPathName);
 180
 181         RtlInitUnicodeString (&RootPathNameU,
 182                               NULL);
 183
 184         if (lpRootPathName)
 185         {
 186                 /* convert ansi (or oem) string to unicode */
 187                 if (bIsFileApiAnsi)
 188                         RtlAnsiStringToUnicodeString (&RootPathNameU,
 189                                                       &RootPathName,
 190                                                       TRUE);
 191                 else
 192                         RtlOemStringToUnicodeString (&RootPathNameU,
 193                                                      &RootPathName,
 194                                                      TRUE);
 195         }
 196
 197         Result = GetDiskFreeSpaceW (RootPathNameU.Buffer,
 198                                     lpSectorsPerCluster,
 199                                     lpBytesPerSector,
 200                                     lpNumberOfFreeClusters,
 201                                     lpTotalNumberOfClusters);
 202
 203         if (lpRootPathName)
 204         {
 205                 RtlFreeHeap (RtlGetProcessHeap (),
 206                              0,
 207                              RootPathNameU.Buffer);
 208         }
 209
 210         return Result;
 211 }
 212
 213
 214 /*
 215  * @implemented
 216  */
 217 WINBOOL STDCALL
 218 GetDiskFreeSpaceW(
 219     LPCWSTR lpRootPathName,
 220     LPDWORD lpSectorsPerCluster,
 221     LPDWORD lpBytesPerSector,
 222     LPDWORD lpNumberOfFreeClusters,
 223     LPDWORD lpTotalNumberOfClusters
 224     )
 225 {
 226     FILE_FS_SIZE_INFORMATION FileFsSize;
 227     IO_STATUS_BLOCK IoStatusBlock;
 228     WCHAR RootPathName[MAX_PATH];
 229     HANDLE hFile;
 230     NTSTATUS errCode;
 231
 232     if (lpRootPathName)
 233     {
 234         wcsncpy (RootPathName, lpRootPathName, 3);
 235     }
 236     else
 237     {
 238         GetCurrentDirectoryW (MAX_PATH, RootPathName);
 239         RootPathName[3] = 0;
 240     }
 241
 242   hFile = InternalOpenDirW(lpRootPathName, FALSE);
 243   if (INVALID_HANDLE_VALUE == hFile)
 244     {
 245       return FALSE;
 246     }
 247
 248     errCode = NtQueryVolumeInformationFile(hFile,
 249                                            &IoStatusBlock,
 250                                            &FileFsSize,
 251                                            sizeof(FILE_FS_SIZE_INFORMATION),
 252                                            FileFsSizeInformation);
 253     if (!NT_SUCCESS(errCode))
 254     {
 255         CloseHandle(hFile);
 256         SetLastErrorByStatus (errCode);
 257         return FALSE;
 258     }
 259
 260     *lpBytesPerSector = FileFsSize.BytesPerSector;
 261     *lpSectorsPerCluster = FileFsSize.SectorsPerAllocationUnit;
 262     *lpNumberOfFreeClusters = FileFsSize.AvailableAllocationUnits.u.LowPart;
 263     *lpTotalNumberOfClusters = FileFsSize.TotalAllocationUnits.u.LowPart;
 264     CloseHandle(hFile);
 265     return TRUE;
 266 }
 267
 268
 269 /*
 270  * @implemented
 271  */
 272 WINBOOL STDCALL
 273 GetDiskFreeSpaceExA (
 274         LPCSTR          lpDirectoryName,
 275         PULARGE_INTEGER lpFreeBytesAvailableToCaller,
 276         PULARGE_INTEGER lpTotalNumberOfBytes,
 277         PULARGE_INTEGER lpTotalNumberOfFreeBytes
 278         )
 279 {
 280         UNICODE_STRING DirectoryNameU;
 281         ANSI_STRING DirectoryName;
 282         WINBOOL Result;
 283
 284         RtlInitAnsiString (&DirectoryName,
 285                            (LPSTR)lpDirectoryName);
 286
 287         RtlInitUnicodeString (&DirectoryNameU,
 288                               NULL);
 289
 290         if (lpDirectoryName)
 291         {
 292                 /* convert ansi (or oem) string to unicode */
 293                 if (bIsFileApiAnsi)
 294                         RtlAnsiStringToUnicodeString (&DirectoryNameU,
 295                                                       &DirectoryName,
 296                                                       TRUE);
 297                 else
 298                         RtlOemStringToUnicodeString (&DirectoryNameU,
 299                                                      &DirectoryName,
 300                                                      TRUE);
 301         }
 302
 303         Result = GetDiskFreeSpaceExW (DirectoryNameU.Buffer,
 304                                       lpFreeBytesAvailableToCaller,
 305                                       lpTotalNumberOfBytes,
 306                                       lpTotalNumberOfFreeBytes);
 307
 308         if (lpDirectoryName)
 309         {
 310                 RtlFreeHeap (RtlGetProcessHeap (),
 311                              0,
 312                              DirectoryNameU.Buffer);
 313         }
 314
 315         return Result;
 316 }
 317
 318
 319 /*
 320  * @implemented
 321  */
 322 WINBOOL STDCALL
 323 GetDiskFreeSpaceExW(
 324     LPCWSTR lpDirectoryName,
 325     PULARGE_INTEGER lpFreeBytesAvailableToCaller,
 326     PULARGE_INTEGER lpTotalNumberOfBytes,
 327     PULARGE_INTEGER lpTotalNumberOfFreeBytes
 328     )
 329 {
 330     FILE_FS_SIZE_INFORMATION FileFsSize;
 331     IO_STATUS_BLOCK IoStatusBlock;
 332     ULARGE_INTEGER BytesPerCluster;
 333     WCHAR RootPathName[MAX_PATH];
 334     HANDLE hFile;
 335     NTSTATUS errCode;
 336
 337     if (lpDirectoryName)
 338     {
 339         wcsncpy (RootPathName, lpDirectoryName, 3);
 340     }
 341     else
 342     {
 343         GetCurrentDirectoryW (MAX_PATH, RootPathName);
 344         RootPathName[3] = 0;
 345     }
 346
 347     hFile = InternalOpenDirW(lpDirectoryName, FALSE);
 348     if (INVALID_HANDLE_VALUE == hFile)
 349     {
 350         return FALSE;
 351     }
 352
 353     errCode = NtQueryVolumeInformationFile(hFile,
 354                                            &IoStatusBlock,
 355                                            &FileFsSize,
 356                                            sizeof(FILE_FS_SIZE_INFORMATION),
 357                                            FileFsSizeInformation);
 358     if (!NT_SUCCESS(errCode))
 359     {
 360         CloseHandle(hFile);
 361         SetLastErrorByStatus (errCode);
 362         return FALSE;
 363     }
 364
 365     BytesPerCluster.QuadPart =
 366         FileFsSize.BytesPerSector * FileFsSize.SectorsPerAllocationUnit;
 367
 368     // FIXME: Use quota information
 369         if (lpFreeBytesAvailableToCaller)
 370         lpFreeBytesAvailableToCaller->QuadPart =
 371             BytesPerCluster.QuadPart * FileFsSize.AvailableAllocationUnits.QuadPart;
 372
 373         if (lpTotalNumberOfBytes)
 374         lpTotalNumberOfBytes->QuadPart =
 375             BytesPerCluster.QuadPart * FileFsSize.TotalAllocationUnits.QuadPart;
 376         if (lpTotalNumberOfFreeBytes)
 377         lpTotalNumberOfFreeBytes->QuadPart =
 378             BytesPerCluster.QuadPart * FileFsSize.AvailableAllocationUnits.QuadPart;
 379
 380     CloseHandle(hFile);
 381     return TRUE;
 382 }
 383
 384
 385 /*
 386  * @implemented
 387  */
 388 UINT STDCALL
 389 GetDriveTypeA(LPCSTR lpRootPathName)
 390 {
 391         UNICODE_STRING RootPathNameU;
 392         ANSI_STRING RootPathName;
 393         UINT Result;
 394
 395         RtlInitAnsiString (&RootPathName,
 396                            (LPSTR)lpRootPathName);
 397
 398         /* convert ansi (or oem) string to unicode */
 399         if (bIsFileApiAnsi)
 400                 RtlAnsiStringToUnicodeString (&RootPathNameU,
 401                                               &RootPathName,
 402                                               TRUE);
 403         else
 404                 RtlOemStringToUnicodeString (&RootPathNameU,
 405                                              &RootPathName,
 406                                              TRUE);
 407
 408         Result = GetDriveTypeW (RootPathNameU.Buffer);
 409
 410         RtlFreeHeap (RtlGetProcessHeap (),
 411                      0,
 412                      RootPathNameU.Buffer);
 413
 414         return Result;
 415 }
 416
 417
 418 /*
 419  * @implemented
 420  */
 421 UINT STDCALL
 422 GetDriveTypeW(LPCWSTR lpRootPathName)
 423 {
 424         FILE_FS_DEVICE_INFORMATION FileFsDevice;
 425         IO_STATUS_BLOCK IoStatusBlock;
 426
 427         HANDLE hFile;
 428         NTSTATUS errCode;
 429
 430         hFile = InternalOpenDirW(lpRootPathName, FALSE);
 431         if (hFile == INVALID_HANDLE_VALUE)
 432         {
 433             return 0;
 434         }
 435
 436         errCode = NtQueryVolumeInformationFile (hFile,
 437                                                 &IoStatusBlock,
 438                                                 &FileFsDevice,
 439                                                 sizeof(FILE_FS_DEVICE_INFORMATION),
 440                                                 FileFsDeviceInformation);
 441         if (!NT_SUCCESS(errCode))
 442         {
 443                 CloseHandle(hFile);
 444                 SetLastErrorByStatus (errCode);
 445                 return 0;
 446         }
 447         CloseHandle(hFile);
 448         return (UINT)FileFsDevice.DeviceType;
 449 }
 450
 451
 452 /*
 453  * @implemented
 454  */
 455 WINBOOL STDCALL
 456 GetVolumeInformationA(
 457         LPCSTR  lpRootPathName,
 458         LPSTR   lpVolumeNameBuffer,
 459         DWORD   nVolumeNameSize,
 460         LPDWORD lpVolumeSerialNumber,
 461         LPDWORD lpMaximumComponentLength,
 462         LPDWORD lpFileSystemFlags,
 463         LPSTR   lpFileSystemNameBuffer,
 464         DWORD   nFileSystemNameSize
 465         )
 466 {
 467   UNICODE_STRING RootPathNameU;
 468   UNICODE_STRING FileSystemNameU;
 469   UNICODE_STRING VolumeNameU;
 470   ANSI_STRING RootPathName;
 471   ANSI_STRING VolumeName;
 472   ANSI_STRING FileSystemName;
 473   WINBOOL Result;
 474
 475   RtlInitAnsiString (&RootPathName,
 476                      (LPSTR)lpRootPathName);
 477
 478   /* convert ansi (or oem) string to unicode */
 479   if (bIsFileApiAnsi)
 480     RtlAnsiStringToUnicodeString (&RootPathNameU,
 481                                   &RootPathName,
 482                                   TRUE);
 483   else
 484     RtlOemStringToUnicodeString (&RootPathNameU,
 485                                  &RootPathName,
 486                                  TRUE);
 487
 488   if (lpVolumeNameBuffer)
 489     {
 490       VolumeNameU.Length = 0;
 491       VolumeNameU.MaximumLength = nVolumeNameSize * sizeof(WCHAR);
 492       VolumeNameU.Buffer = RtlAllocateHeap (RtlGetProcessHeap (),
 493                                             0,
 494                                             VolumeNameU.MaximumLength);
 495     }
 496
 497   if (lpFileSystemNameBuffer)
 498     {
 499       FileSystemNameU.Length = 0;
 500       FileSystemNameU.MaximumLength = nFileSystemNameSize * sizeof(WCHAR);
 501       FileSystemNameU.Buffer = RtlAllocateHeap (RtlGetProcessHeap (),
 502                                                 0,
 503                                                 FileSystemNameU.MaximumLength);
 504     }
 505
 506   Result = GetVolumeInformationW (RootPathNameU.Buffer,
 507                                   lpVolumeNameBuffer ? VolumeNameU.Buffer : NULL,
 508                                   nVolumeNameSize,
 509                                   lpVolumeSerialNumber,
 510                                   lpMaximumComponentLength,
 511                                   lpFileSystemFlags,
 512                                   lpFileSystemNameBuffer ? FileSystemNameU.Buffer : NULL,
 513                                   nFileSystemNameSize);
 514
 515   if (Result)
 516     {
 517       if (lpVolumeNameBuffer)
 518         {
 519           VolumeNameU.Length = wcslen(VolumeNameU.Buffer) * sizeof(WCHAR);
 520           VolumeName.Length = 0;
 521           VolumeName.MaximumLength = nVolumeNameSize;
 522           VolumeName.Buffer = lpVolumeNameBuffer;
 523         }
 524
 525       if (lpFileSystemNameBuffer)
 526         {
 527           FileSystemNameU.Length = wcslen(FileSystemNameU.Buffer) * sizeof(WCHAR);
 528           FileSystemName.Length = 0;
 529           FileSystemName.MaximumLength = nFileSystemNameSize;
 530           FileSystemName.Buffer = lpFileSystemNameBuffer;
 531         }
 532
 533       /* convert unicode strings to ansi (or oem) */
 534       if (bIsFileApiAnsi)
 535         {
 536           if (lpVolumeNameBuffer)
 537             {
 538               RtlUnicodeStringToAnsiString (&VolumeName,
 539                                             &VolumeNameU,
 540                                             FALSE);
 541             }
 542           if (lpFileSystemNameBuffer)
 543             {
 544               RtlUnicodeStringToAnsiString (&FileSystemName,
 545                                             &FileSystemNameU,
 546                                             FALSE);
 547             }
 548         }
 549       else
 550         {
 551           if (lpVolumeNameBuffer)
 552             {
 553               RtlUnicodeStringToOemString (&VolumeName,
 554                                            &VolumeNameU,
 555                                            FALSE);
 556             }
 557           if (lpFileSystemNameBuffer)
 558             {
 559               RtlUnicodeStringToOemString (&FileSystemName,
 560                                            &FileSystemNameU,
 561                                            FALSE);
 562             }
 563         }
 564     }
 565
 566   RtlFreeHeap (RtlGetProcessHeap (),
 567                0,
 568                RootPathNameU.Buffer);
 569   if (lpVolumeNameBuffer)
 570     {
 571       RtlFreeHeap (RtlGetProcessHeap (),
 572                    0,
 573                    VolumeNameU.Buffer);
 574     }
 575   if (lpFileSystemNameBuffer)
 576     {
 577       RtlFreeHeap (RtlGetProcessHeap (),
 578                    0,
 579                    FileSystemNameU.Buffer);
 580     }
 581
 582   return Result;
 583 }
 584
 585 #define FS_VOLUME_BUFFER_SIZE (MAX_PATH * sizeof(WCHAR) + sizeof(FILE_FS_VOLUME_INFORMATION))
 586
 587 #define FS_ATTRIBUTE_BUFFER_SIZE (MAX_PATH * sizeof(WCHAR) + sizeof(FILE_FS_ATTRIBUTE_INFORMATION))
 588
 589 /*
 590  * @implemented
 591  */
 592 WINBOOL STDCALL
 593 GetVolumeInformationW(
 594     LPCWSTR lpRootPathName,
 595     LPWSTR lpVolumeNameBuffer,
 596     DWORD nVolumeNameSize,
 597     LPDWORD lpVolumeSerialNumber,
 598     LPDWORD lpMaximumComponentLength,
 599     LPDWORD lpFileSystemFlags,
 600     LPWSTR lpFileSystemNameBuffer,
 601     DWORD nFileSystemNameSize
 602     )
 603 {
 604   PFILE_FS_VOLUME_INFORMATION FileFsVolume;
 605   PFILE_FS_ATTRIBUTE_INFORMATION FileFsAttribute;
 606   IO_STATUS_BLOCK IoStatusBlock;
 607   OBJECT_ATTRIBUTES ObjectAttributes;
 608   UCHAR Buffer[max(FS_VOLUME_BUFFER_SIZE, FS_ATTRIBUTE_BUFFER_SIZE)];
 609
 610   HANDLE hFile;
 611   NTSTATUS errCode;
 612
 613   FileFsVolume = (PFILE_FS_VOLUME_INFORMATION)Buffer;
 614   FileFsAttribute = (PFILE_FS_ATTRIBUTE_INFORMATION)Buffer;
 615
 616   DPRINT("FileFsVolume %p\n", FileFsVolume);
 617   DPRINT("FileFsAttribute %p\n", FileFsAttribute);
 618
 619   hFile = InternalOpenDirW(lpRootPathName, FALSE);
 620   if (hFile == INVALID_HANDLE_VALUE)
 621     {
 622       return FALSE;
 623     }
 624
 625   DPRINT("hFile: %x\n", hFile);
 626   errCode = NtQueryVolumeInformationFile(hFile,
 627                                          &IoStatusBlock,
 628                                          FileFsVolume,
 629                                          FS_VOLUME_BUFFER_SIZE,
 630                                          FileFsVolumeInformation);
 631   if ( !NT_SUCCESS(errCode) )
 632     {
 633       DPRINT("Status: %x\n", errCode);
 634       CloseHandle(hFile);
 635       SetLastErrorByStatus (errCode);
 636       return FALSE;
 637     }
 638
 639   if (lpVolumeSerialNumber)
 640     *lpVolumeSerialNumber = FileFsVolume->VolumeSerialNumber;
 641
 642   if (lpVolumeNameBuffer)
 643     {
 644       if (nVolumeNameSize * sizeof(WCHAR) >= FileFsVolume->VolumeLabelLength + sizeof(WCHAR))
 645         {
 646           memcpy(lpVolumeNameBuffer,
 647                  FileFsVolume->VolumeLabel,
 648                  FileFsVolume->VolumeLabelLength);
 649           lpVolumeNameBuffer[FileFsVolume->VolumeLabelLength / sizeof(WCHAR)];
 650         }
 651       else
 652         {
 653           CloseHandle(hFile);
 654           SetLastError(ERROR_MORE_DATA);
 655           return FALSE;
 656         }
 657     }
 658
 659   errCode = NtQueryVolumeInformationFile (hFile,
 660                                           &IoStatusBlock,
 661                                           FileFsAttribute,
 662                                           FS_ATTRIBUTE_BUFFER_SIZE,
 663                                           FileFsAttributeInformation);
 664   CloseHandle(hFile);
 665   if (!NT_SUCCESS(errCode))
 666     {
 667       DPRINT("Status: %x\n", errCode);
 668       SetLastErrorByStatus (errCode);
 669       return FALSE;
 670     }
 671
 672   if (lpFileSystemFlags)
 673     *lpFileSystemFlags = FileFsAttribute->FileSystemAttributes;
 674   if (lpMaximumComponentLength)
 675     *lpMaximumComponentLength = FileFsAttribute->MaximumComponentNameLength;
 676   if (lpFileSystemNameBuffer)
 677     {
 678       if (nFileSystemNameSize * sizeof(WCHAR) >= FileFsAttribute->FileSystemNameLength + sizeof(WCHAR))
 679         {
 680           memcpy(lpFileSystemNameBuffer,
 681                  FileFsAttribute->FileSystemName,
 682                  FileFsAttribute->FileSystemNameLength);
 683           lpFileSystemNameBuffer[FileFsAttribute->FileSystemNameLength / sizeof(WCHAR)] = 0;
 684         }
 685       else
 686         {
 687           SetLastError(ERROR_MORE_DATA);
 688           return FALSE;
 689         }
 690     }
 691   return TRUE;
 692 }
 693
 694
 695 /*
 696  * @implemented
 697  */
 698 WINBOOL
 699 STDCALL
 700 SetVolumeLabelA (
 701         LPCSTR  lpRootPathName,
 702         LPCSTR  lpVolumeName
 703         )
 704 {
 705         UNICODE_STRING RootPathNameU;
 706         ANSI_STRING RootPathName;
 707         UNICODE_STRING VolumeNameU;
 708         ANSI_STRING VolumeName;
 709         WINBOOL Result;
 710
 711         RtlInitAnsiString (&RootPathName,
 712                            (LPSTR)lpRootPathName);
 713         RtlInitAnsiString (&VolumeName,
 714                            (LPSTR)lpVolumeName);
 715
 716         /* convert ansi (or oem) strings to unicode */
 717         if (bIsFileApiAnsi)
 718         {
 719                 RtlAnsiStringToUnicodeString (&RootPathNameU,
 720                                               &RootPathName,
 721                                               TRUE);
 722                 RtlAnsiStringToUnicodeString (&VolumeNameU,
 723                                               &VolumeName,
 724                                               TRUE);
 725         }
 726         else
 727         {
 728                 RtlOemStringToUnicodeString (&RootPathNameU,
 729                                              &RootPathName,
 730                                              TRUE);
 731                 RtlOemStringToUnicodeString (&VolumeNameU,
 732                                              &VolumeName,
 733                                              TRUE);
 734         }
 735
 736         Result = SetVolumeLabelW (RootPathNameU.Buffer,
 737                                   VolumeNameU.Buffer);
 738
 739         RtlFreeHeap (RtlGetProcessHeap (),
 740                      0,
 741                      RootPathNameU.Buffer);
 742         RtlFreeHeap (RtlGetProcessHeap (),
 743                      0,
 744                      VolumeNameU.Buffer);
 745
 746         return Result;
 747 }
 748
 749
 750 /*
 751  * @implemented
 752  */
 753 WINBOOL STDCALL
 754 SetVolumeLabelW(LPCWSTR lpRootPathName,
 755                 LPCWSTR lpVolumeName)
 756 {
 757    PFILE_FS_LABEL_INFORMATION LabelInfo;
 758    IO_STATUS_BLOCK IoStatusBlock;
 759    ULONG LabelLength;
 760    HANDLE hFile;
 761    NTSTATUS Status;
 762
 763    LabelLength = wcslen(lpVolumeName) * sizeof(WCHAR);
 764    LabelInfo = RtlAllocateHeap(RtlGetProcessHeap(),
 765                                0,
 766                                sizeof(FILE_FS_LABEL_INFORMATION) +
 767                                LabelLength);
 768    LabelInfo->VolumeLabelLength = LabelLength;
 769    memcpy(LabelInfo->VolumeLabel,
 770           lpVolumeName,
 771           LabelLength);
 772
 773    hFile = InternalOpenDirW(lpRootPathName, TRUE);
 774    if (INVALID_HANDLE_VALUE == hFile)
 775    {
 776         RtlFreeHeap(RtlGetProcessHeap(),
 777                     0,
 778                     LabelInfo);
 779         return FALSE;
 780    }
 781
 782    Status = NtSetVolumeInformationFile(hFile,
 783                                        &IoStatusBlock,
 784                                        LabelInfo,
 785                                        sizeof(FILE_FS_LABEL_INFORMATION) +
 786                                        LabelLength,
 787                                        FileFsLabelInformation);
 788
 789    RtlFreeHeap(RtlGetProcessHeap(),
 790                0,
 791                LabelInfo);
 792
 793    if (!NT_SUCCESS(Status))
 794      {
 795         DPRINT("Status: %x\n", Status);
 796         CloseHandle(hFile);
 797         SetLastErrorByStatus(Status);
 798         return FALSE;
 799      }
 800
 801    CloseHandle(hFile);
 802    return TRUE;
 803 }
 804
 805 /* EOF */