2 * Volume management functions
4 * Copyright 1993 Erik Bos
5 * Copyright 1996, 2004 Alexandre Julliard
6 * Copyright 1999 Petr Tomasek
7 * Copyright 2000 Andreas Mohr
8 * Copyright 2003 Eric Pouech
10 * This library is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Lesser General Public
12 * License as published by the Free Software Foundation; either
13 * version 2.1 of the License, or (at your option) any later version.
15 * This library is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Lesser General Public License for more details.
20 * You should have received a copy of the GNU Lesser General Public
21 * License along with this library; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
26 #include "wine/port.h"
41 #include "kernel_private.h"
42 #include "wine/library.h"
43 #include "wine/unicode.h"
44 #include "wine/debug.h"
46 WINE_DEFAULT_DEBUG_CHANNEL(volume);
48 #define SUPERBLOCK_SIZE 2048
50 #define CDFRAMES_PERSEC 75
51 #define CDFRAMES_PERMIN (CDFRAMES_PERSEC * 60)
52 #define FRAME_OF_ADDR(a) ((a)[1] * CDFRAMES_PERMIN + (a)[2] * CDFRAMES_PERSEC + (a)[3])
53 #define FRAME_OF_TOC(toc, idx) FRAME_OF_ADDR((toc)->TrackData[(idx) - (toc)->FirstTrack].Address)
55 #define GETWORD(buf,off) MAKEWORD(buf[(off)],buf[(off+1)])
56 #define GETLONG(buf,off) MAKELONG(GETWORD(buf,off),GETWORD(buf,off+2))
60 FS_ERROR, /* error accessing the device */
61 FS_UNKNOWN, /* unknown file system */
67 static const WCHAR drive_types[][8] =
69 { 0 }, /* DRIVE_UNKNOWN */
70 { 0 }, /* DRIVE_NO_ROOT_DIR */
71 {'f','l','o','p','p','y',0}, /* DRIVE_REMOVABLE */
72 {'h','d',0}, /* DRIVE_FIXED */
73 {'n','e','t','w','o','r','k',0}, /* DRIVE_REMOTE */
74 {'c','d','r','o','m',0}, /* DRIVE_CDROM */
75 {'r','a','m','d','i','s','k',0} /* DRIVE_RAMDISK */
78 /* read a Unix symlink; returned buffer must be freed by caller */
79 static char *read_symlink( const char *path )
86 if (!(buffer = HeapAlloc( GetProcessHeap(), 0, size )))
88 SetLastError( ERROR_NOT_ENOUGH_MEMORY );
91 ret = readlink( path, buffer, size );
95 HeapFree( GetProcessHeap(), 0, buffer );
103 HeapFree( GetProcessHeap(), 0, buffer );
108 /* get the path of a dos device symlink in the $WINEPREFIX/dosdevices directory */
109 static char *get_dos_device_path( LPCWSTR name )
111 const char *config_dir = wine_get_config_dir();
115 if (!(buffer = HeapAlloc( GetProcessHeap(), 0,
116 strlen(config_dir) + sizeof("/dosdevices/") + 5 )))
118 SetLastError( ERROR_NOT_ENOUGH_MEMORY );
121 strcpy( buffer, config_dir );
122 strcat( buffer, "/dosdevices/" );
123 dev = buffer + strlen(buffer);
124 /* no codepage conversion, DOS device names are ASCII anyway */
125 for (i = 0; i < 5; i++)
126 if (!(dev[i] = (char)tolowerW(name[i]))) break;
132 /* open a handle to a device root */
133 static BOOL open_device_root( LPCWSTR root, HANDLE *handle )
135 static const WCHAR default_rootW[] = {'\\',0};
136 UNICODE_STRING nt_name;
137 OBJECT_ATTRIBUTES attr;
141 if (!root) root = default_rootW;
142 if (!RtlDosPathNameToNtPathName_U( root, &nt_name, NULL, NULL ))
144 SetLastError( ERROR_PATH_NOT_FOUND );
147 attr.Length = sizeof(attr);
148 attr.RootDirectory = 0;
149 attr.Attributes = OBJ_CASE_INSENSITIVE;
150 attr.ObjectName = &nt_name;
151 attr.SecurityDescriptor = NULL;
152 attr.SecurityQualityOfService = NULL;
154 status = NtOpenFile( handle, 0, &attr, &io, 0,
155 FILE_DIRECTORY_FILE | FILE_SYNCHRONOUS_IO_NONALERT );
156 RtlFreeUnicodeString( &nt_name );
157 if (status != STATUS_SUCCESS)
159 SetLastError( RtlNtStatusToDosError(status) );
166 /* fetch the type of a drive from the registry */
167 static UINT get_registry_drive_type( const WCHAR *root )
169 static const WCHAR drive_types_keyW[] = {'M','a','c','h','i','n','e','\\',
170 'S','o','f','t','w','a','r','e','\\',
171 'W','i','n','e','\\',
172 'D','r','i','v','e','s',0 };
173 OBJECT_ATTRIBUTES attr;
174 UNICODE_STRING nameW;
177 UINT ret = DRIVE_UNKNOWN;
178 char tmp[32 + sizeof(KEY_VALUE_PARTIAL_INFORMATION)];
179 WCHAR driveW[] = {'A',':',0};
181 attr.Length = sizeof(attr);
182 attr.RootDirectory = 0;
183 attr.ObjectName = &nameW;
185 attr.SecurityDescriptor = NULL;
186 attr.SecurityQualityOfService = NULL;
187 RtlInitUnicodeString( &nameW, drive_types_keyW );
188 if (NtOpenKey( &hkey, KEY_ALL_ACCESS, &attr ) != STATUS_SUCCESS) return DRIVE_UNKNOWN;
190 if (root) driveW[0] = root[0];
193 WCHAR path[MAX_PATH];
194 GetCurrentDirectoryW( MAX_PATH, path );
198 RtlInitUnicodeString( &nameW, driveW );
199 if (!NtQueryValueKey( hkey, &nameW, KeyValuePartialInformation, tmp, sizeof(tmp), &dummy ))
202 WCHAR *data = (WCHAR *)((KEY_VALUE_PARTIAL_INFORMATION *)tmp)->Data;
204 for (i = 0; i < sizeof(drive_types)/sizeof(drive_types[0]); i++)
206 if (!strcmpiW( data, drive_types[i] ))
218 /* create symlinks for the DOS drives; helper for VOLUME_CreateDevices */
219 static int create_drives( int devices_only )
221 static const WCHAR PathW[] = {'P','a','t','h',0};
222 static const WCHAR DeviceW[] = {'D','e','v','i','c','e',0};
223 WCHAR driveW[] = {'M','a','c','h','i','n','e','\\','S','o','f','t','w','a','r','e','\\',
224 'W','i','n','e','\\','W','i','n','e','\\',
225 'C','o','n','f','i','g','\\','D','r','i','v','e',' ','A',0};
226 OBJECT_ATTRIBUTES attr;
227 UNICODE_STRING nameW;
228 char tmp[1024*sizeof(WCHAR) + sizeof(KEY_VALUE_PARTIAL_INFORMATION)];
235 attr.Length = sizeof(attr);
236 attr.RootDirectory = 0;
237 attr.ObjectName = &nameW;
239 attr.SecurityDescriptor = NULL;
240 attr.SecurityQualityOfService = NULL;
242 /* create symlinks for the drive roots */
244 if (!devices_only) for (i = 0; i < 26; i++)
246 RtlInitUnicodeString( &nameW, driveW );
247 nameW.Buffer[(nameW.Length / sizeof(WCHAR)) - 1] = 'A' + i;
248 if (NtOpenKey( &hkey, KEY_ALL_ACCESS, &attr ) != STATUS_SUCCESS) continue;
250 RtlInitUnicodeString( &nameW, PathW );
251 if (!NtQueryValueKey( hkey, &nameW, KeyValuePartialInformation, tmp, sizeof(tmp), &dummy ))
254 WCHAR *data = (WCHAR *)((KEY_VALUE_PARTIAL_INFORMATION *)tmp)->Data;
255 ExpandEnvironmentStringsW( data, path, sizeof(path)/sizeof(WCHAR) );
257 p = path + strlenW(path) - 1;
258 while ((p > path) && (*p == '/')) *p-- = '\0';
266 /* relative paths are relative to config dir */
267 memmove( path + 3, path, (strlenW(path) + 1) * sizeof(WCHAR) );
272 if (DefineDosDeviceW( DDD_RAW_TARGET_PATH, name, path ))
274 WideCharToMultiByte(CP_UNIXCP, 0, path, -1, dest, sizeof(dest), NULL, NULL);
275 MESSAGE( "Created symlink %s/dosdevices/%c: -> %s\n",
276 wine_get_config_dir(), 'a' + i, dest );
283 /* create symlinks for the drive devices */
285 for (i = 0; i < 26; i++)
287 RtlInitUnicodeString( &nameW, driveW );
288 nameW.Buffer[(nameW.Length / sizeof(WCHAR)) - 1] = 'A' + i;
289 if (NtOpenKey( &hkey, KEY_ALL_ACCESS, &attr ) != STATUS_SUCCESS) continue;
291 RtlInitUnicodeString( &nameW, DeviceW );
292 if (!NtQueryValueKey( hkey, &nameW, KeyValuePartialInformation, tmp, sizeof(tmp), &dummy ))
295 WCHAR devname[] = {'A',':',':',0 };
296 WCHAR *data = (WCHAR *)((KEY_VALUE_PARTIAL_INFORMATION *)tmp)->Data;
297 WideCharToMultiByte(CP_UNIXCP, 0, data, -1, dest, sizeof(dest), NULL, NULL);
298 path = get_dos_device_path( devname );
299 p = path + strlen(path);
301 if (!symlink( dest, path ))
303 MESSAGE( "Created symlink %s/dosdevices/%c:: -> %s\n",
304 wine_get_config_dir(), 'a' + i, dest );
307 HeapFree( GetProcessHeap(), 0, path );
316 /***********************************************************************
317 * VOLUME_CreateDevices
319 * Create the device files for the new device naming scheme.
320 * Should go away after a transition period.
322 void VOLUME_CreateDevices(void)
324 const char *config_dir = wine_get_config_dir();
328 if (!(buffer = HeapAlloc( GetProcessHeap(), 0,
329 strlen(config_dir) + sizeof("/dosdevices/a::") )))
332 strcpy( buffer, config_dir );
333 strcat( buffer, "/dosdevices" );
335 if (!mkdir( buffer, 0777 )) /* we created it, so now create the devices */
339 OBJECT_ATTRIBUTES attr;
340 UNICODE_STRING nameW;
343 WCHAR com[5] = {'C','O','M','1',0};
344 WCHAR lpt[5] = {'L','P','T','1',0};
346 static const WCHAR serialportsW[] = {'M','a','c','h','i','n','e','\\',
347 'S','o','f','t','w','a','r','e','\\',
348 'W','i','n','e','\\','W','i','n','e','\\',
349 'C','o','n','f','i','g','\\',
350 'S','e','r','i','a','l','P','o','r','t','s',0};
351 static const WCHAR parallelportsW[] = {'M','a','c','h','i','n','e','\\',
352 'S','o','f','t','w','a','r','e','\\',
353 'W','i','n','e','\\','W','i','n','e','\\',
354 'C','o','n','f','i','g','\\',
355 'P','a','r','a','l','l','e','l','P','o','r','t','s',0};
357 attr.Length = sizeof(attr);
358 attr.RootDirectory = 0;
359 attr.ObjectName = &nameW;
361 attr.SecurityDescriptor = NULL;
362 attr.SecurityQualityOfService = NULL;
363 RtlInitUnicodeString( &nameW, serialportsW );
365 if (!NtOpenKey( &hkey, KEY_ALL_ACCESS, &attr ))
367 RtlInitUnicodeString( &nameW, com );
368 for (i = 1; i <= 9; i++)
371 if (!NtQueryValueKey( hkey, &nameW, KeyValuePartialInformation,
372 tmp, sizeof(tmp), &dummy ))
374 devnameW = (WCHAR *)((KEY_VALUE_PARTIAL_INFORMATION *)tmp)->Data;
375 if ((p = strchrW( devnameW, ',' ))) *p = 0;
376 if (DefineDosDeviceW( DDD_RAW_TARGET_PATH, com, devnameW ))
379 WideCharToMultiByte(CP_UNIXCP, 0, devnameW, -1,
380 devname, sizeof(devname), NULL, NULL);
381 MESSAGE( "Created symlink %s/dosdevices/com%d -> %s\n", config_dir, i, devname );
389 RtlInitUnicodeString( &nameW, parallelportsW );
390 if (!NtOpenKey( &hkey, KEY_ALL_ACCESS, &attr ))
392 RtlInitUnicodeString( &nameW, lpt );
393 for (i = 1; i <= 9; i++)
396 if (!NtQueryValueKey( hkey, &nameW, KeyValuePartialInformation,
397 tmp, sizeof(tmp), &dummy ))
399 devnameW = (WCHAR *)((KEY_VALUE_PARTIAL_INFORMATION *)tmp)->Data;
400 if ((p = strchrW( devnameW, ',' ))) *p = 0;
401 if (DefineDosDeviceW( DDD_RAW_TARGET_PATH, lpt, devnameW ))
404 WideCharToMultiByte(CP_UNIXCP, 0, devnameW, -1,
405 devname, sizeof(devname), NULL, NULL);
406 MESSAGE( "Created symlink %s/dosdevices/lpt%d -> %s\n", config_dir, i, devname );
413 count += create_drives( FALSE );
420 /* it is possible that the serial/parallel devices have been created but */
421 /* not the drives; check for at least one drive symlink to catch that case */
422 strcat( buffer, "/a:" );
423 for (i = 0; i < 26; i++)
425 buffer[strlen(buffer)-2] = 'a' + i;
426 if (!lstat( buffer, &st )) break;
428 if (i == 26) count += create_drives( FALSE );
431 strcat( buffer, ":" );
432 for (i = 0; i < 26; i++)
434 buffer[strlen(buffer)-3] = 'a' + i;
435 if (!lstat( buffer, &st )) break;
437 if (i == 26) count += create_drives( TRUE );
442 MESSAGE( "\nYou can now remove the [SerialPorts], [ParallelPorts], and [Drive] sections\n"
443 "in your configuration file, they are replaced by the above symlinks.\n\n" );
445 HeapFree( GetProcessHeap(), 0, buffer );
449 /******************************************************************
450 * VOLUME_FindCdRomDataBestVoldesc
452 static DWORD VOLUME_FindCdRomDataBestVoldesc( HANDLE handle )
454 BYTE cur_vd_type, max_vd_type = 0;
456 DWORD size, offs, best_offs = 0, extra_offs = 0;
458 for (offs = 0x8000; offs <= 0x9800; offs += 0x800)
460 /* if 'CDROM' occurs at position 8, this is a pre-iso9660 cd, and
461 * the volume label is displaced forward by 8
463 if (SetFilePointer( handle, offs, NULL, FILE_BEGIN ) != offs) break;
464 if (!ReadFile( handle, buffer, sizeof(buffer), &size, NULL )) break;
465 if (size != sizeof(buffer)) break;
466 /* check for non-ISO9660 signature */
467 if (!memcmp( buffer + 11, "ROM", 3 )) extra_offs = 8;
468 cur_vd_type = buffer[extra_offs];
469 if (cur_vd_type == 0xff) /* voldesc set terminator */
471 if (cur_vd_type > max_vd_type)
473 max_vd_type = cur_vd_type;
474 best_offs = offs + extra_offs;
481 /***********************************************************************
482 * VOLUME_ReadFATSuperblock
484 static enum fs_type VOLUME_ReadFATSuperblock( HANDLE handle, BYTE *buff )
488 /* try a fixed disk, with a FAT partition */
489 if (SetFilePointer( handle, 0, NULL, FILE_BEGIN ) != 0 ||
490 !ReadFile( handle, buff, SUPERBLOCK_SIZE, &size, NULL ) ||
491 size != SUPERBLOCK_SIZE)
494 /* FIXME: do really all FAT have their name beginning with
495 * "FAT" ? (At least FAT12, FAT16 and FAT32 have :)
497 if (!memcmp(buff+0x36, "FAT", 3) || !memcmp(buff+0x52, "FAT", 3))
499 /* guess which type of FAT we have */
501 unsigned int sectors,
510 sect_per_fat = GETWORD(buff, 0x16);
511 if (!sect_per_fat) sect_per_fat = GETLONG(buff, 0x24);
512 total_sectors = GETWORD(buff, 0x13);
514 total_sectors = GETLONG(buff, 0x20);
515 num_boot_sectors = GETWORD(buff, 0x0e);
516 num_fats = buff[0x10];
517 num_root_dir_ents = GETWORD(buff, 0x11);
518 bytes_per_sector = GETWORD(buff, 0x0b);
519 sectors_per_cluster = buff[0x0d];
520 /* check if the parameters are reasonable and will not cause
521 * arithmetic errors in the calculation */
522 reasonable = num_boot_sectors < 16 &&
524 bytes_per_sector >= 512 && bytes_per_sector % 512 == 0 &&
525 sectors_per_cluster > 1;
526 if (!reasonable) return FS_UNKNOWN;
527 sectors = total_sectors - num_boot_sectors - num_fats * sect_per_fat -
528 (num_root_dir_ents * 32 + bytes_per_sector - 1) / bytes_per_sector;
529 nclust = sectors / sectors_per_cluster;
530 if ((buff[0x42] == 0x28 || buff[0x42] == 0x29) &&
531 !memcmp(buff+0x52, "FAT", 3)) return FS_FAT32;
534 if ((buff[0x26] == 0x28 || buff[0x26] == 0x29) &&
535 !memcmp(buff+0x36, "FAT", 3))
543 /***********************************************************************
544 * VOLUME_ReadCDSuperblock
546 static enum fs_type VOLUME_ReadCDSuperblock( HANDLE handle, BYTE *buff )
548 DWORD size, offs = VOLUME_FindCdRomDataBestVoldesc( handle );
550 if (!offs) return FS_UNKNOWN;
552 if (SetFilePointer( handle, offs, NULL, FILE_BEGIN ) != offs ||
553 !ReadFile( handle, buff, SUPERBLOCK_SIZE, &size, NULL ) ||
554 size != SUPERBLOCK_SIZE)
557 /* check for iso9660 present */
558 if (!memcmp(&buff[1], "CD001", 5)) return FS_ISO9660;
563 /**************************************************************************
564 * VOLUME_GetSuperblockLabel
566 static void VOLUME_GetSuperblockLabel( enum fs_type type, const BYTE *superblock,
567 WCHAR *label, DWORD len )
569 const BYTE *label_ptr = NULL;
579 label_ptr = superblock + 0x2b;
583 label_ptr = superblock + 0x47;
588 BYTE ver = superblock[0x5a];
590 if (superblock[0x58] == 0x25 && superblock[0x59] == 0x2f && /* Unicode ID */
591 ((ver == 0x40) || (ver == 0x43) || (ver == 0x45)))
592 { /* yippee, unicode */
595 if (len > 17) len = 17;
596 for (i = 0; i < len-1; i++)
597 label[i] = (superblock[40+2*i] << 8) | superblock[41+2*i];
599 while (i && label[i-1] == ' ') label[--i] = 0;
602 label_ptr = superblock + 40;
607 if (label_len) RtlMultiByteToUnicodeN( label, (len-1) * sizeof(WCHAR),
608 &label_len, label_ptr, label_len );
609 label_len /= sizeof(WCHAR);
610 label[label_len] = 0;
611 while (label_len && label[label_len-1] == ' ') label[--label_len] = 0;
615 /**************************************************************************
616 * VOLUME_SetSuperblockLabel
618 static BOOL VOLUME_SetSuperblockLabel( enum fs_type type, HANDLE handle, const WCHAR *label )
632 SetLastError( ERROR_ACCESS_DENIED );
635 RtlUnicodeToMultiByteN( label_data, sizeof(label_data), &len,
636 label, strlenW(label) * sizeof(WCHAR) );
637 if (len < sizeof(label_data))
638 memset( label_data + len, ' ', sizeof(label_data) - len );
640 return (SetFilePointer( handle, offset, NULL, FILE_BEGIN ) == offset &&
641 WriteFile( handle, label_data, sizeof(label_data), &len, NULL ));
645 /**************************************************************************
646 * VOLUME_GetSuperblockSerial
648 static DWORD VOLUME_GetSuperblockSerial( enum fs_type type, const BYTE *superblock )
656 return GETLONG( superblock, 0x27 );
658 return GETLONG( superblock, 0x33 );
664 sum[0] = sum[1] = sum[2] = sum[3] = 0;
665 for (i = 0; i < 2048; i += 4)
667 /* DON'T optimize this into DWORD !! (breaks overflow) */
668 sum[0] += superblock[i+0];
669 sum[1] += superblock[i+1];
670 sum[2] += superblock[i+2];
671 sum[3] += superblock[i+3];
674 * OK, another braindead one... argh. Just believe it.
675 * Me$$ysoft chose to reverse the serial number in NT4/W2K.
676 * It's true and nobody will ever be able to change it.
678 if (GetVersion() & 0x80000000)
679 return (sum[3] << 24) | (sum[2] << 16) | (sum[1] << 8) | sum[0];
681 return (sum[0] << 24) | (sum[1] << 16) | (sum[2] << 8) | sum[3];
688 /**************************************************************************
689 * VOLUME_GetAudioCDSerial
691 static DWORD VOLUME_GetAudioCDSerial( const CDROM_TOC *toc )
696 for (i = 0; i <= toc->LastTrack - toc->FirstTrack; i++)
697 serial += ((toc->TrackData[i].Address[1] << 16) |
698 (toc->TrackData[i].Address[2] << 8) |
699 toc->TrackData[i].Address[3]);
702 * dwStart, dwEnd collect the beginning and end of the disc respectively, in
704 * There it is collected for correcting the serial when there are less than
707 if (toc->LastTrack - toc->FirstTrack + 1 < 3)
709 DWORD dwStart = FRAME_OF_TOC(toc, toc->FirstTrack);
710 DWORD dwEnd = FRAME_OF_TOC(toc, toc->LastTrack + 1);
711 serial += dwEnd - dwStart;
717 /***********************************************************************
718 * GetVolumeInformationW (KERNEL32.@)
720 BOOL WINAPI GetVolumeInformationW( LPCWSTR root, LPWSTR label, DWORD label_len,
721 DWORD *serial, DWORD *filename_len, DWORD *flags,
722 LPWSTR fsname, DWORD fsname_len )
724 static const WCHAR audiocdW[] = {'A','u','d','i','o',' ','C','D',0};
725 static const WCHAR fatW[] = {'F','A','T',0};
726 static const WCHAR ntfsW[] = {'N','T','F','S',0};
727 static const WCHAR cdfsW[] = {'C','D','F','S',0};
729 WCHAR device[] = {'\\','\\','.','\\','A',':',0};
731 enum fs_type type = FS_UNKNOWN;
735 WCHAR path[MAX_PATH];
736 GetCurrentDirectoryW( MAX_PATH, path );
741 if (!root[0] || root[1] != ':')
743 SetLastError( ERROR_INVALID_NAME );
749 /* try to open the device */
751 handle = CreateFileW( device, GENERIC_READ, FILE_SHARE_READ|FILE_SHARE_WRITE,
752 NULL, OPEN_EXISTING, 0, 0 );
753 if (handle != INVALID_HANDLE_VALUE)
755 BYTE superblock[SUPERBLOCK_SIZE];
759 /* check for audio CD */
760 /* FIXME: we only check the first track for now */
761 if (DeviceIoControl( handle, IOCTL_CDROM_READ_TOC, NULL, 0, &toc, sizeof(toc), &br, 0 ))
763 if (!(toc.TrackData[0].Control & 0x04)) /* audio track */
765 TRACE( "%s: found audio CD\n", debugstr_w(device) );
766 if (label) lstrcpynW( label, audiocdW, label_len );
767 if (serial) *serial = VOLUME_GetAudioCDSerial( &toc );
768 CloseHandle( handle );
772 type = VOLUME_ReadCDSuperblock( handle, superblock );
776 type = VOLUME_ReadFATSuperblock( handle, superblock );
777 if (type == FS_UNKNOWN) type = VOLUME_ReadCDSuperblock( handle, superblock );
779 CloseHandle( handle );
780 TRACE( "%s: found fs type %d\n", debugstr_w(device), type );
781 if (type == FS_ERROR) return FALSE;
783 if (label && label_len) VOLUME_GetSuperblockLabel( type, superblock, label, label_len );
784 if (serial) *serial = VOLUME_GetSuperblockSerial( type, superblock );
787 else TRACE( "cannot open device %s: err %ld\n", debugstr_w(device), GetLastError() );
789 /* we couldn't open the device, fallback to default strategy */
791 switch(GetDriveTypeW( root ))
794 case DRIVE_NO_ROOT_DIR:
795 SetLastError( ERROR_NOT_READY );
797 case DRIVE_REMOVABLE:
808 if (label && label_len)
810 WCHAR labelW[] = {'A',':','\\','.','w','i','n','d','o','w','s','-','l','a','b','e','l',0};
812 labelW[0] = device[4];
813 handle = CreateFileW( labelW, GENERIC_READ, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL,
814 OPEN_EXISTING, 0, 0 );
815 if (handle != INVALID_HANDLE_VALUE)
817 char buffer[256], *p;
820 if (!ReadFile( handle, buffer, sizeof(buffer)-1, &size, NULL )) size = 0;
821 CloseHandle( handle );
823 while (p > buffer && (p[-1] == ' ' || p[-1] == '\r' || p[-1] == '\n')) p--;
825 if (!MultiByteToWideChar( CP_UNIXCP, 0, buffer, -1, label, label_len ))
826 label[label_len-1] = 0;
832 WCHAR serialW[] = {'A',':','\\','.','w','i','n','d','o','w','s','-','s','e','r','i','a','l',0};
834 serialW[0] = device[4];
835 handle = CreateFileW( serialW, GENERIC_READ, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL,
836 OPEN_EXISTING, 0, 0 );
837 if (handle != INVALID_HANDLE_VALUE)
842 if (!ReadFile( handle, buffer, sizeof(buffer)-1, &size, NULL )) size = 0;
843 CloseHandle( handle );
845 *serial = strtoul( buffer, NULL, 16 );
850 fill_fs_info: /* now fill in the information that depends on the file system type */
855 if (fsname) lstrcpynW( fsname, cdfsW, fsname_len );
856 if (filename_len) *filename_len = 221;
857 if (flags) *flags = FILE_READ_ONLY_VOLUME;
861 if (fsname) lstrcpynW( fsname, fatW, fsname_len );
862 if (filename_len) *filename_len = 255;
863 if (flags) *flags = FILE_CASE_PRESERVED_NAMES; /* FIXME */
866 if (fsname) lstrcpynW( fsname, ntfsW, fsname_len );
867 if (filename_len) *filename_len = 255;
868 if (flags) *flags = FILE_CASE_PRESERVED_NAMES;
875 /***********************************************************************
876 * GetVolumeInformationA (KERNEL32.@)
878 BOOL WINAPI GetVolumeInformationA( LPCSTR root, LPSTR label,
879 DWORD label_len, DWORD *serial,
880 DWORD *filename_len, DWORD *flags,
881 LPSTR fsname, DWORD fsname_len )
884 LPWSTR labelW, fsnameW;
887 if (root && !(rootW = FILE_name_AtoW( root, FALSE ))) return FALSE;
889 labelW = label ? HeapAlloc(GetProcessHeap(), 0, label_len * sizeof(WCHAR)) : NULL;
890 fsnameW = fsname ? HeapAlloc(GetProcessHeap(), 0, fsname_len * sizeof(WCHAR)) : NULL;
892 if ((ret = GetVolumeInformationW(rootW, labelW, label_len, serial,
893 filename_len, flags, fsnameW, fsname_len)))
895 if (label) FILE_name_WtoA( labelW, -1, label, label_len );
896 if (fsname) FILE_name_WtoA( fsnameW, -1, fsname, fsname_len );
899 HeapFree( GetProcessHeap(), 0, labelW );
900 HeapFree( GetProcessHeap(), 0, fsnameW );
906 /***********************************************************************
907 * SetVolumeLabelW (KERNEL32.@)
909 BOOL WINAPI SetVolumeLabelW( LPCWSTR root, LPCWSTR label )
911 WCHAR device[] = {'\\','\\','.','\\','A',':',0};
913 enum fs_type type = FS_UNKNOWN;
917 WCHAR path[MAX_PATH];
918 GetCurrentDirectoryW( MAX_PATH, path );
923 if (!root[0] || root[1] != ':')
925 SetLastError( ERROR_INVALID_NAME );
931 /* try to open the device */
933 handle = CreateFileW( device, GENERIC_READ|GENERIC_WRITE, FILE_SHARE_READ|FILE_SHARE_WRITE,
934 NULL, OPEN_EXISTING, 0, 0 );
935 if (handle == INVALID_HANDLE_VALUE)
938 handle = CreateFileW( device, GENERIC_READ, FILE_SHARE_READ|FILE_SHARE_WRITE,
939 NULL, OPEN_EXISTING, 0, 0 );
940 if (handle != INVALID_HANDLE_VALUE)
942 /* device can be read but not written, return error */
943 CloseHandle( handle );
944 SetLastError( ERROR_ACCESS_DENIED );
949 if (handle != INVALID_HANDLE_VALUE)
951 BYTE superblock[SUPERBLOCK_SIZE];
954 type = VOLUME_ReadFATSuperblock( handle, superblock );
955 ret = VOLUME_SetSuperblockLabel( type, handle, label );
956 CloseHandle( handle );
961 TRACE( "cannot open device %s: err %ld\n", debugstr_w(device), GetLastError() );
962 if (GetLastError() != ERROR_ACCESS_DENIED) return FALSE;
965 /* we couldn't open the device, fallback to default strategy */
967 switch(GetDriveTypeW( root ))
970 case DRIVE_NO_ROOT_DIR:
971 SetLastError( ERROR_NOT_READY );
973 case DRIVE_REMOVABLE:
976 WCHAR labelW[] = {'A',':','\\','.','w','i','n','d','o','w','s','-','l','a','b','e','l',0};
978 labelW[0] = device[4];
979 handle = CreateFileW( labelW, GENERIC_WRITE, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL,
980 CREATE_ALWAYS, 0, 0 );
981 if (handle != INVALID_HANDLE_VALUE)
986 if (!WideCharToMultiByte( CP_UNIXCP, 0, label, -1, buffer, sizeof(buffer), NULL, NULL ))
987 buffer[sizeof(buffer)-1] = 0;
988 WriteFile( handle, buffer, strlen(buffer), &size, NULL );
989 CloseHandle( handle );
997 SetLastError( ERROR_ACCESS_DENIED );
1003 /***********************************************************************
1004 * SetVolumeLabelA (KERNEL32.@)
1006 BOOL WINAPI SetVolumeLabelA(LPCSTR root, LPCSTR volname)
1008 WCHAR *rootW = NULL, *volnameW = NULL;
1011 if (root && !(rootW = FILE_name_AtoW( root, FALSE ))) return FALSE;
1012 if (volname && !(volnameW = FILE_name_AtoW( volname, TRUE ))) return FALSE;
1013 ret = SetVolumeLabelW( rootW, volnameW );
1014 HeapFree( GetProcessHeap(), 0, volnameW );
1019 /***********************************************************************
1020 * GetVolumeNameForVolumeMountPointW (KERNEL32.@)
1022 BOOL WINAPI GetVolumeNameForVolumeMountPointW(LPCWSTR str, LPWSTR dst, DWORD size)
1024 FIXME("(%s, %p, %lx): stub\n", debugstr_w(str), dst, size);
1029 /***********************************************************************
1030 * DefineDosDeviceW (KERNEL32.@)
1032 BOOL WINAPI DefineDosDeviceW( DWORD flags, LPCWSTR devname, LPCWSTR targetpath )
1036 char *path = NULL, *target, *p;
1038 if (!(flags & DDD_REMOVE_DEFINITION))
1040 if (!(flags & DDD_RAW_TARGET_PATH))
1042 FIXME( "(0x%08lx,%s,%s) DDD_RAW_TARGET_PATH flag not set, not supported yet\n",
1043 flags, debugstr_w(devname), debugstr_w(targetpath) );
1044 SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
1048 len = WideCharToMultiByte( CP_UNIXCP, 0, targetpath, -1, NULL, 0, NULL, NULL );
1049 if ((target = HeapAlloc( GetProcessHeap(), 0, len )))
1051 WideCharToMultiByte( CP_UNIXCP, 0, targetpath, -1, target, len, NULL, NULL );
1052 for (p = target; *p; p++) if (*p == '\\') *p = '/';
1056 SetLastError( ERROR_NOT_ENOUGH_MEMORY );
1062 /* first check for a DOS device */
1064 if ((dosdev = RtlIsDosDeviceName_U( devname )))
1068 memcpy( name, devname + HIWORD(dosdev)/sizeof(WCHAR), LOWORD(dosdev) );
1069 name[LOWORD(dosdev)/sizeof(WCHAR)] = 0;
1070 path = get_dos_device_path( name );
1072 else if (isalphaW(devname[0]) && devname[1] == ':' && !devname[2]) /* drive mapping */
1074 path = get_dos_device_path( devname );
1076 else SetLastError( ERROR_FILE_NOT_FOUND );
1082 TRACE( "creating symlink %s -> %s\n", path, target );
1084 if (!symlink( target, path )) ret = TRUE;
1085 else FILE_SetDosError();
1089 TRACE( "removing symlink %s\n", path );
1090 if (!unlink( path )) ret = TRUE;
1091 else FILE_SetDosError();
1093 HeapFree( GetProcessHeap(), 0, path );
1095 HeapFree( GetProcessHeap(), 0, target );
1100 /***********************************************************************
1101 * DefineDosDeviceA (KERNEL32.@)
1103 BOOL WINAPI DefineDosDeviceA(DWORD flags, LPCSTR devname, LPCSTR targetpath)
1105 WCHAR *devW, *targetW = NULL;
1108 if (!(devW = FILE_name_AtoW( devname, FALSE ))) return FALSE;
1109 if (targetpath && !(targetW = FILE_name_AtoW( targetpath, TRUE ))) return FALSE;
1110 ret = DefineDosDeviceW(flags, devW, targetW);
1111 HeapFree( GetProcessHeap(), 0, targetW );
1116 /***********************************************************************
1117 * QueryDosDeviceW (KERNEL32.@)
1119 * returns array of strings terminated by \0, terminated by \0
1121 DWORD WINAPI QueryDosDeviceW( LPCWSTR devname, LPWSTR target, DWORD bufsize )
1123 static const WCHAR auxW[] = {'A','U','X',0};
1124 static const WCHAR nulW[] = {'N','U','L',0};
1125 static const WCHAR prnW[] = {'P','R','N',0};
1126 static const WCHAR comW[] = {'C','O','M',0};
1127 static const WCHAR lptW[] = {'L','P','T',0};
1128 static const WCHAR rootW[] = {'A',':','\\',0};
1129 static const WCHAR com0W[] = {'\\','?','?','\\','C','O','M','0',0};
1130 static const WCHAR com1W[] = {'\\','D','o','s','D','e','v','i','c','e','s','\\','C','O','M','1',0,0};
1131 static const WCHAR lpt1W[] = {'\\','D','o','s','D','e','v','i','c','e','s','\\','L','P','T','1',0,0};
1133 UNICODE_STRING nt_name;
1134 ANSI_STRING unix_name;
1135 WCHAR nt_buffer[10];
1140 SetLastError( ERROR_INSUFFICIENT_BUFFER );
1148 DWORD dosdev, ret = 0;
1150 if ((dosdev = RtlIsDosDeviceName_U( devname )))
1152 memcpy( name, devname + HIWORD(dosdev)/sizeof(WCHAR), LOWORD(dosdev) );
1153 name[LOWORD(dosdev)/sizeof(WCHAR)] = 0;
1155 else if (devname[0] && devname[1] == ':' && !devname[2])
1157 memcpy( name, devname, 3 * sizeof(WCHAR) );
1161 SetLastError( ERROR_BAD_PATHNAME );
1165 if (!(path = get_dos_device_path( name ))) return 0;
1166 link = read_symlink( path );
1167 HeapFree( GetProcessHeap(), 0, path );
1171 ret = MultiByteToWideChar( CP_UNIXCP, 0, link, -1, target, bufsize );
1172 HeapFree( GetProcessHeap(), 0, link );
1174 else if (dosdev) /* look for device defaults */
1176 if (!strcmpiW( name, auxW ))
1178 if (bufsize >= sizeof(com1W)/sizeof(WCHAR))
1180 memcpy( target, com1W, sizeof(com1W) );
1181 ret = sizeof(com1W)/sizeof(WCHAR);
1183 else SetLastError( ERROR_INSUFFICIENT_BUFFER );
1186 if (!strcmpiW( name, prnW ))
1188 if (bufsize >= sizeof(lpt1W)/sizeof(WCHAR))
1190 memcpy( target, lpt1W, sizeof(lpt1W) );
1191 ret = sizeof(lpt1W)/sizeof(WCHAR);
1193 else SetLastError( ERROR_INSUFFICIENT_BUFFER );
1197 nt_buffer[0] = '\\';
1200 nt_buffer[3] = '\\';
1201 strcpyW( nt_buffer + 4, name );
1202 RtlInitUnicodeString( &nt_name, nt_buffer );
1203 status = wine_nt_to_unix_file_name( &nt_name, &unix_name, FILE_OPEN, TRUE );
1204 if (status) SetLastError( RtlNtStatusToDosError(status) );
1207 ret = MultiByteToWideChar( CP_UNIXCP, 0, unix_name.Buffer, -1, target, bufsize );
1208 RtlFreeAnsiString( &unix_name );
1214 if (ret < bufsize) target[ret++] = 0; /* add an extra null */
1215 for (p = target; *p; p++) if (*p == '/') *p = '\\';
1220 else /* return a list of all devices */
1225 if (bufsize <= (sizeof(auxW)+sizeof(nulW)+sizeof(prnW))/sizeof(WCHAR))
1227 SetLastError( ERROR_INSUFFICIENT_BUFFER );
1231 memcpy( p, auxW, sizeof(auxW) );
1232 p += sizeof(auxW) / sizeof(WCHAR);
1233 memcpy( p, nulW, sizeof(nulW) );
1234 p += sizeof(nulW) / sizeof(WCHAR);
1235 memcpy( p, prnW, sizeof(prnW) );
1236 p += sizeof(prnW) / sizeof(WCHAR);
1238 strcpyW( nt_buffer, com0W );
1239 RtlInitUnicodeString( &nt_name, nt_buffer );
1241 for (i = 1; i <= 9; i++)
1243 nt_buffer[7] = '0' + i;
1244 if (!wine_nt_to_unix_file_name( &nt_name, &unix_name, FILE_OPEN, TRUE ))
1246 RtlFreeAnsiString( &unix_name );
1247 if (p + 5 >= target + bufsize)
1249 SetLastError( ERROR_INSUFFICIENT_BUFFER );
1258 strcpyW( nt_buffer + 4, lptW );
1259 for (i = 1; i <= 9; i++)
1261 nt_buffer[7] = '0' + i;
1262 if (!wine_nt_to_unix_file_name( &nt_name, &unix_name, FILE_OPEN, TRUE ))
1264 RtlFreeAnsiString( &unix_name );
1265 if (p + 5 >= target + bufsize)
1267 SetLastError( ERROR_INSUFFICIENT_BUFFER );
1277 strcpyW( nt_buffer + 4, rootW );
1278 RtlInitUnicodeString( &nt_name, nt_buffer );
1280 for (i = 0; i < 26; i++)
1282 nt_buffer[4] = 'a' + i;
1283 if (!wine_nt_to_unix_file_name( &nt_name, &unix_name, FILE_OPEN, TRUE ))
1285 RtlFreeAnsiString( &unix_name );
1286 if (p + 3 >= target + bufsize)
1288 SetLastError( ERROR_INSUFFICIENT_BUFFER );
1296 *p++ = 0; /* terminating null */
1302 /***********************************************************************
1303 * QueryDosDeviceA (KERNEL32.@)
1305 * returns array of strings terminated by \0, terminated by \0
1307 DWORD WINAPI QueryDosDeviceA( LPCSTR devname, LPSTR target, DWORD bufsize )
1309 DWORD ret = 0, retW;
1313 if (!(devnameW = FILE_name_AtoW( devname, FALSE ))) return 0;
1315 targetW = HeapAlloc( GetProcessHeap(),0, bufsize * sizeof(WCHAR) );
1318 SetLastError( ERROR_NOT_ENOUGH_MEMORY );
1322 retW = QueryDosDeviceW(devnameW, targetW, bufsize);
1324 ret = FILE_name_WtoA( targetW, retW, target, bufsize );
1326 HeapFree(GetProcessHeap(), 0, targetW);
1331 /***********************************************************************
1332 * GetLogicalDrives (KERNEL32.@)
1334 DWORD WINAPI GetLogicalDrives(void)
1336 const char *config_dir = wine_get_config_dir();
1342 if (!(buffer = HeapAlloc( GetProcessHeap(), 0, strlen(config_dir) + sizeof("/dosdevices/a:") )))
1344 SetLastError( ERROR_NOT_ENOUGH_MEMORY );
1347 strcpy( buffer, config_dir );
1348 strcat( buffer, "/dosdevices/a:" );
1349 dev = buffer + strlen(buffer) - 2;
1351 for (i = 0; i < 26; i++)
1354 if (!stat( buffer, &st )) ret |= (1 << i);
1356 HeapFree( GetProcessHeap(), 0, buffer );
1361 /***********************************************************************
1362 * GetLogicalDriveStringsA (KERNEL32.@)
1364 UINT WINAPI GetLogicalDriveStringsA( UINT len, LPSTR buffer )
1366 DWORD drives = GetLogicalDrives();
1369 for (drive = count = 0; drive < 26; drive++) if (drives & (1 << drive)) count++;
1370 if ((count * 4) + 1 > len) return count * 4 + 1;
1372 for (drive = 0; drive < 26; drive++)
1374 if (drives & (1 << drive))
1376 *buffer++ = 'a' + drive;
1387 /***********************************************************************
1388 * GetLogicalDriveStringsW (KERNEL32.@)
1390 UINT WINAPI GetLogicalDriveStringsW( UINT len, LPWSTR buffer )
1392 DWORD drives = GetLogicalDrives();
1395 for (drive = count = 0; drive < 26; drive++) if (drives & (1 << drive)) count++;
1396 if ((count * 4) + 1 > len) return count * 4 + 1;
1398 for (drive = 0; drive < 26; drive++)
1400 if (drives & (1 << drive))
1402 *buffer++ = 'a' + drive;
1413 /***********************************************************************
1414 * GetDriveTypeW (KERNEL32.@)
1416 * Returns the type of the disk drive specified. If root is NULL the
1417 * root of the current directory is used.
1421 * Type of drive (from Win32 SDK):
1423 * DRIVE_UNKNOWN unable to find out anything about the drive
1424 * DRIVE_NO_ROOT_DIR nonexistent root dir
1425 * DRIVE_REMOVABLE the disk can be removed from the machine
1426 * DRIVE_FIXED the disk can not be removed from the machine
1427 * DRIVE_REMOTE network disk
1428 * DRIVE_CDROM CDROM drive
1429 * DRIVE_RAMDISK virtual disk in RAM
1431 UINT WINAPI GetDriveTypeW(LPCWSTR root) /* [in] String describing drive */
1433 FILE_FS_DEVICE_INFORMATION info;
1439 if (!open_device_root( root, &handle )) return DRIVE_NO_ROOT_DIR;
1441 status = NtQueryVolumeInformationFile( handle, &io, &info, sizeof(info), FileFsDeviceInformation );
1443 if (status != STATUS_SUCCESS)
1445 SetLastError( RtlNtStatusToDosError(status) );
1446 ret = DRIVE_UNKNOWN;
1448 else if ((ret = get_registry_drive_type( root )) == DRIVE_UNKNOWN)
1450 switch (info.DeviceType)
1452 case FILE_DEVICE_CD_ROM_FILE_SYSTEM: ret = DRIVE_CDROM; break;
1453 case FILE_DEVICE_VIRTUAL_DISK: ret = DRIVE_RAMDISK; break;
1454 case FILE_DEVICE_NETWORK_FILE_SYSTEM: ret = DRIVE_REMOTE; break;
1455 case FILE_DEVICE_DISK_FILE_SYSTEM:
1456 if (info.Characteristics & FILE_REMOTE_DEVICE) ret = DRIVE_REMOTE;
1457 else if (info.Characteristics & FILE_REMOVABLE_MEDIA) ret = DRIVE_REMOVABLE;
1458 else ret = DRIVE_FIXED;
1461 ret = DRIVE_UNKNOWN;
1465 TRACE( "%s -> %d\n", debugstr_w(root), ret );
1470 /***********************************************************************
1471 * GetDriveTypeA (KERNEL32.@)
1473 UINT WINAPI GetDriveTypeA( LPCSTR root )
1475 WCHAR *rootW = NULL;
1477 if (root && !(rootW = FILE_name_AtoW( root, FALSE ))) return DRIVE_NO_ROOT_DIR;
1478 return GetDriveTypeW( rootW );
1482 /***********************************************************************
1483 * GetDiskFreeSpaceExW (KERNEL32.@)
1485 * This function is used to acquire the size of the available and
1486 * total space on a logical volume.
1490 * Zero on failure, nonzero upon success. Use GetLastError to obtain
1491 * detailed error information.
1494 BOOL WINAPI GetDiskFreeSpaceExW( LPCWSTR root, PULARGE_INTEGER avail,
1495 PULARGE_INTEGER total, PULARGE_INTEGER totalfree )
1497 FILE_FS_SIZE_INFORMATION info;
1503 TRACE( "%s,%p,%p,%p\n", debugstr_w(root), avail, total, totalfree );
1505 if (!open_device_root( root, &handle )) return FALSE;
1507 status = NtQueryVolumeInformationFile( handle, &io, &info, sizeof(info), FileFsSizeInformation );
1509 if (status != STATUS_SUCCESS)
1511 SetLastError( RtlNtStatusToDosError(status) );
1515 units = info.SectorsPerAllocationUnit * info.BytesPerSector;
1516 if (total) total->QuadPart = info.TotalAllocationUnits.QuadPart * units;
1517 if (totalfree) totalfree->QuadPart = info.AvailableAllocationUnits.QuadPart * units;
1518 /* FIXME: this one should take quotas into account */
1519 if (avail) avail->QuadPart = info.AvailableAllocationUnits.QuadPart * units;
1524 /***********************************************************************
1525 * GetDiskFreeSpaceExA (KERNEL32.@)
1527 BOOL WINAPI GetDiskFreeSpaceExA( LPCSTR root, PULARGE_INTEGER avail,
1528 PULARGE_INTEGER total, PULARGE_INTEGER totalfree )
1530 WCHAR *rootW = NULL;
1532 if (root && !(rootW = FILE_name_AtoW( root, FALSE ))) return FALSE;
1533 return GetDiskFreeSpaceExW( rootW, avail, total, totalfree );
1537 /***********************************************************************
1538 * GetDiskFreeSpaceW (KERNEL32.@)
1540 BOOL WINAPI GetDiskFreeSpaceW( LPCWSTR root, LPDWORD cluster_sectors,
1541 LPDWORD sector_bytes, LPDWORD free_clusters,
1542 LPDWORD total_clusters )
1544 FILE_FS_SIZE_INFORMATION info;
1550 TRACE( "%s,%p,%p,%p,%p\n", debugstr_w(root),
1551 cluster_sectors, sector_bytes, free_clusters, total_clusters );
1553 if (!open_device_root( root, &handle )) return FALSE;
1555 status = NtQueryVolumeInformationFile( handle, &io, &info, sizeof(info), FileFsSizeInformation );
1557 if (status != STATUS_SUCCESS)
1559 SetLastError( RtlNtStatusToDosError(status) );
1563 units = info.SectorsPerAllocationUnit * info.BytesPerSector;
1565 /* cap the size and available at 2GB as per specs */
1566 if (info.AvailableAllocationUnits.QuadPart * units > 0x7fffffff)
1567 info.AvailableAllocationUnits.QuadPart = 0x7fffffff / units;
1568 if (info.TotalAllocationUnits.QuadPart * units > 0x7fffffff)
1569 info.TotalAllocationUnits.QuadPart = 0x7fffffff / units;
1571 if (cluster_sectors) *cluster_sectors = info.SectorsPerAllocationUnit;
1572 if (sector_bytes) *sector_bytes = info.BytesPerSector;
1573 if (free_clusters) *free_clusters = info.AvailableAllocationUnits.u.LowPart;
1574 if (total_clusters) *total_clusters = info.TotalAllocationUnits.u.LowPart;
1579 /***********************************************************************
1580 * GetDiskFreeSpaceA (KERNEL32.@)
1582 BOOL WINAPI GetDiskFreeSpaceA( LPCSTR root, LPDWORD cluster_sectors,
1583 LPDWORD sector_bytes, LPDWORD free_clusters,
1584 LPDWORD total_clusters )
1586 WCHAR *rootW = NULL;
1588 if (root && !(rootW = FILE_name_AtoW( root, FALSE ))) return FALSE;
1589 return GetDiskFreeSpaceW( rootW, cluster_sectors, sector_bytes, free_clusters, total_clusters );