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
);