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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
26 #include "wine/port.h"
33 #define WIN32_NO_STATUS
40 #include "ddk/mountmgr.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) );
165 /* get the label by reading it from a file at the root of the filesystem */
166 static void get_filesystem_label( const WCHAR *device, WCHAR *label, DWORD len )
169 WCHAR labelW[] = {'A',':','\\','.','w','i','n','d','o','w','s','-','l','a','b','e','l',0};
171 labelW[0] = device[4];
172 handle = CreateFileW( labelW, GENERIC_READ, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL,
173 OPEN_EXISTING, 0, 0 );
174 if (handle != INVALID_HANDLE_VALUE)
176 char buffer[256], *p;
179 if (!ReadFile( handle, buffer, sizeof(buffer)-1, &size, NULL )) size = 0;
180 CloseHandle( handle );
182 while (p > buffer && (p[-1] == ' ' || p[-1] == '\r' || p[-1] == '\n')) p--;
184 if (!MultiByteToWideChar( CP_UNIXCP, 0, buffer, -1, label, len ))
190 /* get the serial number by reading it from a file at the root of the filesystem */
191 static DWORD get_filesystem_serial( const WCHAR *device )
194 WCHAR serialW[] = {'A',':','\\','.','w','i','n','d','o','w','s','-','s','e','r','i','a','l',0};
196 serialW[0] = device[4];
197 handle = CreateFileW( serialW, GENERIC_READ, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL,
198 OPEN_EXISTING, 0, 0 );
199 if (handle != INVALID_HANDLE_VALUE)
204 if (!ReadFile( handle, buffer, sizeof(buffer)-1, &size, NULL )) size = 0;
205 CloseHandle( handle );
207 return strtoul( buffer, NULL, 16 );
212 /* fetch the type of a drive from the registry */
213 static UINT get_registry_drive_type( const WCHAR *root )
215 static const WCHAR drive_types_keyW[] = {'M','a','c','h','i','n','e','\\',
216 'S','o','f','t','w','a','r','e','\\',
217 'W','i','n','e','\\',
218 'D','r','i','v','e','s',0 };
219 OBJECT_ATTRIBUTES attr;
220 UNICODE_STRING nameW;
223 UINT ret = DRIVE_UNKNOWN;
224 char tmp[32 + sizeof(KEY_VALUE_PARTIAL_INFORMATION)];
225 WCHAR driveW[] = {'A',':',0};
227 attr.Length = sizeof(attr);
228 attr.RootDirectory = 0;
229 attr.ObjectName = &nameW;
231 attr.SecurityDescriptor = NULL;
232 attr.SecurityQualityOfService = NULL;
233 RtlInitUnicodeString( &nameW, drive_types_keyW );
234 /* @@ Wine registry key: HKLM\Software\Wine\Drives */
235 if (NtOpenKey( &hkey, KEY_ALL_ACCESS, &attr ) != STATUS_SUCCESS) return DRIVE_UNKNOWN;
237 if (root) driveW[0] = root[0];
240 WCHAR path[MAX_PATH];
241 GetCurrentDirectoryW( MAX_PATH, path );
245 RtlInitUnicodeString( &nameW, driveW );
246 if (!NtQueryValueKey( hkey, &nameW, KeyValuePartialInformation, tmp, sizeof(tmp), &dummy ))
249 WCHAR *data = (WCHAR *)((KEY_VALUE_PARTIAL_INFORMATION *)tmp)->Data;
251 for (i = 0; i < sizeof(drive_types)/sizeof(drive_types[0]); i++)
253 if (!strcmpiW( data, drive_types[i] ))
265 /******************************************************************
266 * VOLUME_FindCdRomDataBestVoldesc
268 static DWORD VOLUME_FindCdRomDataBestVoldesc( HANDLE handle )
270 BYTE cur_vd_type, max_vd_type = 0;
272 DWORD size, offs, best_offs = 0, extra_offs = 0;
274 for (offs = 0x8000; offs <= 0x9800; offs += 0x800)
276 /* if 'CDROM' occurs at position 8, this is a pre-iso9660 cd, and
277 * the volume label is displaced forward by 8
279 if (SetFilePointer( handle, offs, NULL, FILE_BEGIN ) != offs) break;
280 if (!ReadFile( handle, buffer, sizeof(buffer), &size, NULL )) break;
281 if (size != sizeof(buffer)) break;
282 /* check for non-ISO9660 signature */
283 if (!memcmp( buffer + 11, "ROM", 3 )) extra_offs = 8;
284 cur_vd_type = buffer[extra_offs];
285 if (cur_vd_type == 0xff) /* voldesc set terminator */
287 if (cur_vd_type > max_vd_type)
289 max_vd_type = cur_vd_type;
290 best_offs = offs + extra_offs;
297 /***********************************************************************
298 * VOLUME_ReadFATSuperblock
300 static enum fs_type VOLUME_ReadFATSuperblock( HANDLE handle, BYTE *buff )
304 /* try a fixed disk, with a FAT partition */
305 if (SetFilePointer( handle, 0, NULL, FILE_BEGIN ) != 0 ||
306 !ReadFile( handle, buff, SUPERBLOCK_SIZE, &size, NULL ))
309 if (size < SUPERBLOCK_SIZE) return FS_UNKNOWN;
311 /* FIXME: do really all FAT have their name beginning with
312 * "FAT" ? (At least FAT12, FAT16 and FAT32 have :)
314 if (!memcmp(buff+0x36, "FAT", 3) || !memcmp(buff+0x52, "FAT", 3))
316 /* guess which type of FAT we have */
318 unsigned int sectors,
327 sect_per_fat = GETWORD(buff, 0x16);
328 if (!sect_per_fat) sect_per_fat = GETLONG(buff, 0x24);
329 total_sectors = GETWORD(buff, 0x13);
331 total_sectors = GETLONG(buff, 0x20);
332 num_boot_sectors = GETWORD(buff, 0x0e);
333 num_fats = buff[0x10];
334 num_root_dir_ents = GETWORD(buff, 0x11);
335 bytes_per_sector = GETWORD(buff, 0x0b);
336 sectors_per_cluster = buff[0x0d];
337 /* check if the parameters are reasonable and will not cause
338 * arithmetic errors in the calculation */
339 reasonable = num_boot_sectors < 16 &&
341 bytes_per_sector >= 512 && bytes_per_sector % 512 == 0 &&
342 sectors_per_cluster > 1;
343 if (!reasonable) return FS_UNKNOWN;
344 sectors = total_sectors - num_boot_sectors - num_fats * sect_per_fat -
345 (num_root_dir_ents * 32 + bytes_per_sector - 1) / bytes_per_sector;
346 nclust = sectors / sectors_per_cluster;
347 if ((buff[0x42] == 0x28 || buff[0x42] == 0x29) &&
348 !memcmp(buff+0x52, "FAT", 3)) return FS_FAT32;
351 if ((buff[0x26] == 0x28 || buff[0x26] == 0x29) &&
352 !memcmp(buff+0x36, "FAT", 3))
360 /***********************************************************************
361 * VOLUME_ReadCDSuperblock
363 static enum fs_type VOLUME_ReadCDSuperblock( HANDLE handle, BYTE *buff )
365 DWORD size, offs = VOLUME_FindCdRomDataBestVoldesc( handle );
367 if (!offs) return FS_UNKNOWN;
369 if (SetFilePointer( handle, offs, NULL, FILE_BEGIN ) != offs ||
370 !ReadFile( handle, buff, SUPERBLOCK_SIZE, &size, NULL ) ||
371 size != SUPERBLOCK_SIZE)
374 /* check for iso9660 present */
375 if (!memcmp(&buff[1], "CD001", 5)) return FS_ISO9660;
380 /**************************************************************************
381 * VOLUME_GetSuperblockLabel
383 static void VOLUME_GetSuperblockLabel( const WCHAR *device, enum fs_type type, const BYTE *superblock,
384 WCHAR *label, DWORD len )
386 const BYTE *label_ptr = NULL;
395 get_filesystem_label( device, label, len );
398 label_ptr = superblock + 0x2b;
402 label_ptr = superblock + 0x47;
407 BYTE ver = superblock[0x5a];
409 if (superblock[0x58] == 0x25 && superblock[0x59] == 0x2f && /* Unicode ID */
410 ((ver == 0x40) || (ver == 0x43) || (ver == 0x45)))
411 { /* yippee, unicode */
414 if (len > 17) len = 17;
415 for (i = 0; i < len-1; i++)
416 label[i] = (superblock[40+2*i] << 8) | superblock[41+2*i];
418 while (i && label[i-1] == ' ') label[--i] = 0;
421 label_ptr = superblock + 40;
426 if (label_len) RtlMultiByteToUnicodeN( label, (len-1) * sizeof(WCHAR),
427 &label_len, (LPCSTR)label_ptr, label_len );
428 label_len /= sizeof(WCHAR);
429 label[label_len] = 0;
430 while (label_len && label[label_len-1] == ' ') label[--label_len] = 0;
434 /**************************************************************************
435 * VOLUME_GetSuperblockSerial
437 static DWORD VOLUME_GetSuperblockSerial( const WCHAR *device, enum fs_type type, const BYTE *superblock )
444 return get_filesystem_serial( device );
446 return GETLONG( superblock, 0x27 );
448 return GETLONG( superblock, 0x33 );
454 sum[0] = sum[1] = sum[2] = sum[3] = 0;
455 for (i = 0; i < 2048; i += 4)
457 /* DON'T optimize this into DWORD !! (breaks overflow) */
458 sum[0] += superblock[i+0];
459 sum[1] += superblock[i+1];
460 sum[2] += superblock[i+2];
461 sum[3] += superblock[i+3];
464 * OK, another braindead one... argh. Just believe it.
465 * Me$$ysoft chose to reverse the serial number in NT4/W2K.
466 * It's true and nobody will ever be able to change it.
468 if (GetVersion() & 0x80000000)
469 return (sum[3] << 24) | (sum[2] << 16) | (sum[1] << 8) | sum[0];
471 return (sum[0] << 24) | (sum[1] << 16) | (sum[2] << 8) | sum[3];
478 /**************************************************************************
479 * VOLUME_GetAudioCDSerial
481 static DWORD VOLUME_GetAudioCDSerial( const CDROM_TOC *toc )
486 for (i = 0; i <= toc->LastTrack - toc->FirstTrack; i++)
487 serial += ((toc->TrackData[i].Address[1] << 16) |
488 (toc->TrackData[i].Address[2] << 8) |
489 toc->TrackData[i].Address[3]);
492 * dwStart, dwEnd collect the beginning and end of the disc respectively, in
494 * There it is collected for correcting the serial when there are less than
497 if (toc->LastTrack - toc->FirstTrack + 1 < 3)
499 DWORD dwStart = FRAME_OF_TOC(toc, toc->FirstTrack);
500 DWORD dwEnd = FRAME_OF_TOC(toc, toc->LastTrack + 1);
501 serial += dwEnd - dwStart;
507 /***********************************************************************
508 * GetVolumeInformationW (KERNEL32.@)
510 BOOL WINAPI GetVolumeInformationW( LPCWSTR root, LPWSTR label, DWORD label_len,
511 DWORD *serial, DWORD *filename_len, DWORD *flags,
512 LPWSTR fsname, DWORD fsname_len )
514 static const WCHAR audiocdW[] = {'A','u','d','i','o',' ','C','D',0};
515 static const WCHAR fatW[] = {'F','A','T',0};
516 static const WCHAR ntfsW[] = {'N','T','F','S',0};
517 static const WCHAR cdfsW[] = {'C','D','F','S',0};
519 WCHAR device[] = {'\\','\\','.','\\','A',':',0};
521 enum fs_type type = FS_UNKNOWN;
525 WCHAR path[MAX_PATH];
526 GetCurrentDirectoryW( MAX_PATH, path );
531 if (!root[0] || root[1] != ':')
533 SetLastError( ERROR_INVALID_NAME );
539 /* try to open the device */
541 handle = CreateFileW( device, GENERIC_READ, FILE_SHARE_READ|FILE_SHARE_WRITE,
542 NULL, OPEN_EXISTING, 0, 0 );
543 if (handle != INVALID_HANDLE_VALUE)
545 BYTE superblock[SUPERBLOCK_SIZE];
549 /* check for audio CD */
550 /* FIXME: we only check the first track for now */
551 if (DeviceIoControl( handle, IOCTL_CDROM_READ_TOC, NULL, 0, &toc, sizeof(toc), &br, 0 ))
553 if (!(toc.TrackData[0].Control & 0x04)) /* audio track */
555 TRACE( "%s: found audio CD\n", debugstr_w(device) );
556 if (label) lstrcpynW( label, audiocdW, label_len );
557 if (serial) *serial = VOLUME_GetAudioCDSerial( &toc );
558 CloseHandle( handle );
562 type = VOLUME_ReadCDSuperblock( handle, superblock );
566 type = VOLUME_ReadFATSuperblock( handle, superblock );
567 if (type == FS_UNKNOWN) type = VOLUME_ReadCDSuperblock( handle, superblock );
569 CloseHandle( handle );
570 TRACE( "%s: found fs type %d\n", debugstr_w(device), type );
571 if (type == FS_ERROR) return FALSE;
573 if (label && label_len) VOLUME_GetSuperblockLabel( device, type, superblock, label, label_len );
574 if (serial) *serial = VOLUME_GetSuperblockSerial( device, type, superblock );
577 else TRACE( "cannot open device %s: err %d\n", debugstr_w(device), GetLastError() );
579 /* we couldn't open the device, fallback to default strategy */
581 switch(GetDriveTypeW( root ))
584 case DRIVE_NO_ROOT_DIR:
585 SetLastError( ERROR_NOT_READY );
587 case DRIVE_REMOVABLE:
598 if (label && label_len) get_filesystem_label( device, label, label_len );
599 if (serial) *serial = get_filesystem_serial( device );
601 fill_fs_info: /* now fill in the information that depends on the file system type */
606 if (fsname) lstrcpynW( fsname, cdfsW, fsname_len );
607 if (filename_len) *filename_len = 221;
608 if (flags) *flags = FILE_READ_ONLY_VOLUME;
612 if (fsname) lstrcpynW( fsname, fatW, fsname_len );
613 if (filename_len) *filename_len = 255;
614 if (flags) *flags = FILE_CASE_PRESERVED_NAMES; /* FIXME */
617 if (fsname) lstrcpynW( fsname, ntfsW, fsname_len );
618 if (filename_len) *filename_len = 255;
619 if (flags) *flags = FILE_CASE_PRESERVED_NAMES;
626 /***********************************************************************
627 * GetVolumeInformationA (KERNEL32.@)
629 BOOL WINAPI GetVolumeInformationA( LPCSTR root, LPSTR label,
630 DWORD label_len, DWORD *serial,
631 DWORD *filename_len, DWORD *flags,
632 LPSTR fsname, DWORD fsname_len )
635 LPWSTR labelW, fsnameW;
638 if (root && !(rootW = FILE_name_AtoW( root, FALSE ))) return FALSE;
640 labelW = label ? HeapAlloc(GetProcessHeap(), 0, label_len * sizeof(WCHAR)) : NULL;
641 fsnameW = fsname ? HeapAlloc(GetProcessHeap(), 0, fsname_len * sizeof(WCHAR)) : NULL;
643 if ((ret = GetVolumeInformationW(rootW, labelW, label_len, serial,
644 filename_len, flags, fsnameW, fsname_len)))
646 if (label) FILE_name_WtoA( labelW, -1, label, label_len );
647 if (fsname) FILE_name_WtoA( fsnameW, -1, fsname, fsname_len );
650 HeapFree( GetProcessHeap(), 0, labelW );
651 HeapFree( GetProcessHeap(), 0, fsnameW );
657 /***********************************************************************
658 * SetVolumeLabelW (KERNEL32.@)
660 BOOL WINAPI SetVolumeLabelW( LPCWSTR root, LPCWSTR label )
662 WCHAR device[] = {'\\','\\','.','\\','A',':',0};
664 enum fs_type type = FS_UNKNOWN;
668 WCHAR path[MAX_PATH];
669 GetCurrentDirectoryW( MAX_PATH, path );
674 if (!root[0] || root[1] != ':')
676 SetLastError( ERROR_INVALID_NAME );
682 /* try to open the device */
684 handle = CreateFileW( device, GENERIC_READ, FILE_SHARE_READ|FILE_SHARE_WRITE,
685 NULL, OPEN_EXISTING, 0, 0 );
686 if (handle != INVALID_HANDLE_VALUE)
688 BYTE superblock[SUPERBLOCK_SIZE];
690 type = VOLUME_ReadFATSuperblock( handle, superblock );
691 if (type == FS_UNKNOWN) type = VOLUME_ReadCDSuperblock( handle, superblock );
692 CloseHandle( handle );
693 if (type != FS_UNKNOWN)
695 /* we can't set the label on FAT or CDROM file systems */
696 TRACE( "cannot set label on device %s type %d\n", debugstr_w(device), type );
697 SetLastError( ERROR_ACCESS_DENIED );
703 TRACE( "cannot open device %s: err %d\n", debugstr_w(device), GetLastError() );
704 if (GetLastError() == ERROR_ACCESS_DENIED) return FALSE;
707 /* we couldn't open the device, fallback to default strategy */
709 switch(GetDriveTypeW( root ))
712 case DRIVE_NO_ROOT_DIR:
713 SetLastError( ERROR_NOT_READY );
715 case DRIVE_REMOVABLE:
718 WCHAR labelW[] = {'A',':','\\','.','w','i','n','d','o','w','s','-','l','a','b','e','l',0};
720 labelW[0] = device[4];
721 handle = CreateFileW( labelW, GENERIC_WRITE, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL,
722 CREATE_ALWAYS, 0, 0 );
723 if (handle != INVALID_HANDLE_VALUE)
728 if (!WideCharToMultiByte( CP_UNIXCP, 0, label, -1, buffer, sizeof(buffer), NULL, NULL ))
729 buffer[sizeof(buffer)-1] = 0;
730 WriteFile( handle, buffer, strlen(buffer), &size, NULL );
731 CloseHandle( handle );
739 SetLastError( ERROR_ACCESS_DENIED );
745 /***********************************************************************
746 * SetVolumeLabelA (KERNEL32.@)
748 BOOL WINAPI SetVolumeLabelA(LPCSTR root, LPCSTR volname)
750 WCHAR *rootW = NULL, *volnameW = NULL;
753 if (root && !(rootW = FILE_name_AtoW( root, FALSE ))) return FALSE;
754 if (volname && !(volnameW = FILE_name_AtoW( volname, TRUE ))) return FALSE;
755 ret = SetVolumeLabelW( rootW, volnameW );
756 HeapFree( GetProcessHeap(), 0, volnameW );
761 /***********************************************************************
762 * GetVolumeNameForVolumeMountPointA (KERNEL32.@)
764 BOOL WINAPI GetVolumeNameForVolumeMountPointA( LPCSTR path, LPSTR volume, DWORD size )
767 WCHAR volumeW[50], *pathW = NULL;
768 DWORD len = min( sizeof(volumeW) / sizeof(WCHAR), size );
770 TRACE("(%s, %p, %x)\n", debugstr_a(path), volume, size);
772 if (!path || !(pathW = FILE_name_AtoW( path, TRUE )))
775 if ((ret = GetVolumeNameForVolumeMountPointW( pathW, volumeW, len )))
776 FILE_name_WtoA( volumeW, -1, volume, len );
778 HeapFree( GetProcessHeap(), 0, pathW );
782 /***********************************************************************
783 * GetVolumeNameForVolumeMountPointW (KERNEL32.@)
785 BOOL WINAPI GetVolumeNameForVolumeMountPointW( LPCWSTR path, LPWSTR volume, DWORD size )
788 static const WCHAR fmt[] =
789 { '\\','\\','?','\\','V','o','l','u','m','e','{','%','0','2','x','}','\\',0 };
791 TRACE("(%s, %p, %x)\n", debugstr_w(path), volume, size);
793 if (!path || !path[0]) return FALSE;
795 if (size >= sizeof(fmt) / sizeof(WCHAR))
797 /* FIXME: will break when we support volume mounts */
798 sprintfW( volume, fmt, tolowerW( path[0] ) - 'a' );
804 /***********************************************************************
805 * DefineDosDeviceW (KERNEL32.@)
807 BOOL WINAPI DefineDosDeviceW( DWORD flags, LPCWSTR devname, LPCWSTR targetpath )
811 char *path = NULL, *target, *p;
813 TRACE("%x, %s, %s\n", flags, debugstr_w(devname), debugstr_w(targetpath));
815 if (!(flags & DDD_REMOVE_DEFINITION))
817 if (!(flags & DDD_RAW_TARGET_PATH))
819 FIXME( "(0x%08x,%s,%s) DDD_RAW_TARGET_PATH flag not set, not supported yet\n",
820 flags, debugstr_w(devname), debugstr_w(targetpath) );
821 SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
825 len = WideCharToMultiByte( CP_UNIXCP, 0, targetpath, -1, NULL, 0, NULL, NULL );
826 if ((target = HeapAlloc( GetProcessHeap(), 0, len )))
828 WideCharToMultiByte( CP_UNIXCP, 0, targetpath, -1, target, len, NULL, NULL );
829 for (p = target; *p; p++) if (*p == '\\') *p = '/';
833 SetLastError( ERROR_NOT_ENOUGH_MEMORY );
839 /* first check for a DOS device */
841 if ((dosdev = RtlIsDosDeviceName_U( devname )))
845 memcpy( name, devname + HIWORD(dosdev)/sizeof(WCHAR), LOWORD(dosdev) );
846 name[LOWORD(dosdev)/sizeof(WCHAR)] = 0;
847 path = get_dos_device_path( name );
849 else if (isalphaW(devname[0]) && devname[1] == ':' && !devname[2]) /* drive mapping */
851 path = get_dos_device_path( devname );
853 else SetLastError( ERROR_FILE_NOT_FOUND );
859 TRACE( "creating symlink %s -> %s\n", path, target );
861 if (!symlink( target, path )) ret = TRUE;
862 else FILE_SetDosError();
866 TRACE( "removing symlink %s\n", path );
867 if (!unlink( path )) ret = TRUE;
868 else FILE_SetDosError();
870 HeapFree( GetProcessHeap(), 0, path );
872 HeapFree( GetProcessHeap(), 0, target );
877 /***********************************************************************
878 * DefineDosDeviceA (KERNEL32.@)
880 BOOL WINAPI DefineDosDeviceA(DWORD flags, LPCSTR devname, LPCSTR targetpath)
882 WCHAR *devW, *targetW = NULL;
885 if (!(devW = FILE_name_AtoW( devname, FALSE ))) return FALSE;
886 if (targetpath && !(targetW = FILE_name_AtoW( targetpath, TRUE ))) return FALSE;
887 ret = DefineDosDeviceW(flags, devW, targetW);
888 HeapFree( GetProcessHeap(), 0, targetW );
893 /***********************************************************************
894 * QueryDosDeviceW (KERNEL32.@)
896 * returns array of strings terminated by \0, terminated by \0
898 DWORD WINAPI QueryDosDeviceW( LPCWSTR devname, LPWSTR target, DWORD bufsize )
900 static const WCHAR auxW[] = {'A','U','X',0};
901 static const WCHAR nulW[] = {'N','U','L',0};
902 static const WCHAR prnW[] = {'P','R','N',0};
903 static const WCHAR comW[] = {'C','O','M',0};
904 static const WCHAR lptW[] = {'L','P','T',0};
905 static const WCHAR rootW[] = {'A',':','\\',0};
906 static const WCHAR com0W[] = {'\\','?','?','\\','C','O','M','0',0};
907 static const WCHAR com1W[] = {'\\','D','o','s','D','e','v','i','c','e','s','\\','C','O','M','1',0,0};
908 static const WCHAR lpt1W[] = {'\\','D','o','s','D','e','v','i','c','e','s','\\','L','P','T','1',0,0};
910 UNICODE_STRING nt_name;
911 ANSI_STRING unix_name;
917 SetLastError( ERROR_INSUFFICIENT_BUFFER );
925 DWORD dosdev, ret = 0;
927 if ((dosdev = RtlIsDosDeviceName_U( devname )))
929 memcpy( name, devname + HIWORD(dosdev)/sizeof(WCHAR), LOWORD(dosdev) );
930 name[LOWORD(dosdev)/sizeof(WCHAR)] = 0;
932 else if (devname[0] && devname[1] == ':' && !devname[2])
934 memcpy( name, devname, 3 * sizeof(WCHAR) );
938 SetLastError( ERROR_BAD_PATHNAME );
942 if (!(path = get_dos_device_path( name ))) return 0;
943 link = read_symlink( path );
944 HeapFree( GetProcessHeap(), 0, path );
948 ret = MultiByteToWideChar( CP_UNIXCP, 0, link, -1, target, bufsize );
949 HeapFree( GetProcessHeap(), 0, link );
951 else if (dosdev) /* look for device defaults */
953 if (!strcmpiW( name, auxW ))
955 if (bufsize >= sizeof(com1W)/sizeof(WCHAR))
957 memcpy( target, com1W, sizeof(com1W) );
958 ret = sizeof(com1W)/sizeof(WCHAR);
960 else SetLastError( ERROR_INSUFFICIENT_BUFFER );
963 if (!strcmpiW( name, prnW ))
965 if (bufsize >= sizeof(lpt1W)/sizeof(WCHAR))
967 memcpy( target, lpt1W, sizeof(lpt1W) );
968 ret = sizeof(lpt1W)/sizeof(WCHAR);
970 else SetLastError( ERROR_INSUFFICIENT_BUFFER );
978 strcpyW( nt_buffer + 4, name );
979 RtlInitUnicodeString( &nt_name, nt_buffer );
980 status = wine_nt_to_unix_file_name( &nt_name, &unix_name, FILE_OPEN, TRUE );
981 if (status) SetLastError( RtlNtStatusToDosError(status) );
984 ret = MultiByteToWideChar( CP_UNIXCP, 0, unix_name.Buffer, -1, target, bufsize );
985 RtlFreeAnsiString( &unix_name );
991 if (ret < bufsize) target[ret++] = 0; /* add an extra null */
992 for (p = target; *p; p++) if (*p == '/') *p = '\\';
997 else /* return a list of all devices */
1002 if (bufsize <= (sizeof(auxW)+sizeof(nulW)+sizeof(prnW))/sizeof(WCHAR))
1004 SetLastError( ERROR_INSUFFICIENT_BUFFER );
1008 memcpy( p, auxW, sizeof(auxW) );
1009 p += sizeof(auxW) / sizeof(WCHAR);
1010 memcpy( p, nulW, sizeof(nulW) );
1011 p += sizeof(nulW) / sizeof(WCHAR);
1012 memcpy( p, prnW, sizeof(prnW) );
1013 p += sizeof(prnW) / sizeof(WCHAR);
1015 strcpyW( nt_buffer, com0W );
1016 RtlInitUnicodeString( &nt_name, nt_buffer );
1018 for (i = 1; i <= 9; i++)
1020 nt_buffer[7] = '0' + i;
1021 if (!wine_nt_to_unix_file_name( &nt_name, &unix_name, FILE_OPEN, TRUE ))
1023 RtlFreeAnsiString( &unix_name );
1024 if (p + 5 >= target + bufsize)
1026 SetLastError( ERROR_INSUFFICIENT_BUFFER );
1035 strcpyW( nt_buffer + 4, lptW );
1036 for (i = 1; i <= 9; i++)
1038 nt_buffer[7] = '0' + i;
1039 if (!wine_nt_to_unix_file_name( &nt_name, &unix_name, FILE_OPEN, TRUE ))
1041 RtlFreeAnsiString( &unix_name );
1042 if (p + 5 >= target + bufsize)
1044 SetLastError( ERROR_INSUFFICIENT_BUFFER );
1054 strcpyW( nt_buffer + 4, rootW );
1055 RtlInitUnicodeString( &nt_name, nt_buffer );
1057 for (i = 0; i < 26; i++)
1059 nt_buffer[4] = 'a' + i;
1060 if (!wine_nt_to_unix_file_name( &nt_name, &unix_name, FILE_OPEN, TRUE ))
1062 RtlFreeAnsiString( &unix_name );
1063 if (p + 3 >= target + bufsize)
1065 SetLastError( ERROR_INSUFFICIENT_BUFFER );
1073 *p++ = 0; /* terminating null */
1079 /***********************************************************************
1080 * QueryDosDeviceA (KERNEL32.@)
1082 * returns array of strings terminated by \0, terminated by \0
1084 DWORD WINAPI QueryDosDeviceA( LPCSTR devname, LPSTR target, DWORD bufsize )
1086 DWORD ret = 0, retW;
1087 WCHAR *devnameW = NULL;
1090 if (devname && !(devnameW = FILE_name_AtoW( devname, FALSE ))) return 0;
1092 targetW = HeapAlloc( GetProcessHeap(),0, bufsize * sizeof(WCHAR) );
1095 SetLastError( ERROR_NOT_ENOUGH_MEMORY );
1099 retW = QueryDosDeviceW(devnameW, targetW, bufsize);
1101 ret = FILE_name_WtoA( targetW, retW, target, bufsize );
1103 HeapFree(GetProcessHeap(), 0, targetW);
1108 /***********************************************************************
1109 * GetLogicalDrives (KERNEL32.@)
1111 DWORD WINAPI GetLogicalDrives(void)
1113 const char *config_dir = wine_get_config_dir();
1119 if (!(buffer = HeapAlloc( GetProcessHeap(), 0, strlen(config_dir) + sizeof("/dosdevices/a:") )))
1121 SetLastError( ERROR_NOT_ENOUGH_MEMORY );
1124 strcpy( buffer, config_dir );
1125 strcat( buffer, "/dosdevices/a:" );
1126 dev = buffer + strlen(buffer) - 2;
1128 for (i = 0; i < 26; i++)
1131 if (!stat( buffer, &st )) ret |= (1 << i);
1133 HeapFree( GetProcessHeap(), 0, buffer );
1138 /***********************************************************************
1139 * GetLogicalDriveStringsA (KERNEL32.@)
1141 UINT WINAPI GetLogicalDriveStringsA( UINT len, LPSTR buffer )
1143 DWORD drives = GetLogicalDrives();
1146 for (drive = count = 0; drive < 26; drive++) if (drives & (1 << drive)) count++;
1147 if ((count * 4) + 1 > len) return count * 4 + 1;
1149 for (drive = 0; drive < 26; drive++)
1151 if (drives & (1 << drive))
1153 *buffer++ = 'a' + drive;
1164 /***********************************************************************
1165 * GetLogicalDriveStringsW (KERNEL32.@)
1167 UINT WINAPI GetLogicalDriveStringsW( UINT len, LPWSTR buffer )
1169 DWORD drives = GetLogicalDrives();
1172 for (drive = count = 0; drive < 26; drive++) if (drives & (1 << drive)) count++;
1173 if ((count * 4) + 1 > len) return count * 4 + 1;
1175 for (drive = 0; drive < 26; drive++)
1177 if (drives & (1 << drive))
1179 *buffer++ = 'a' + drive;
1190 /***********************************************************************
1191 * GetDriveTypeW (KERNEL32.@)
1193 * Returns the type of the disk drive specified. If root is NULL the
1194 * root of the current directory is used.
1198 * Type of drive (from Win32 SDK):
1200 * DRIVE_UNKNOWN unable to find out anything about the drive
1201 * DRIVE_NO_ROOT_DIR nonexistent root dir
1202 * DRIVE_REMOVABLE the disk can be removed from the machine
1203 * DRIVE_FIXED the disk cannot be removed from the machine
1204 * DRIVE_REMOTE network disk
1205 * DRIVE_CDROM CDROM drive
1206 * DRIVE_RAMDISK virtual disk in RAM
1208 UINT WINAPI GetDriveTypeW(LPCWSTR root) /* [in] String describing drive */
1210 FILE_FS_DEVICE_INFORMATION info;
1216 if (!open_device_root( root, &handle )) return DRIVE_NO_ROOT_DIR;
1218 status = NtQueryVolumeInformationFile( handle, &io, &info, sizeof(info), FileFsDeviceInformation );
1220 if (status != STATUS_SUCCESS)
1222 SetLastError( RtlNtStatusToDosError(status) );
1223 ret = DRIVE_UNKNOWN;
1225 else if ((ret = get_registry_drive_type( root )) == DRIVE_UNKNOWN)
1227 switch (info.DeviceType)
1229 case FILE_DEVICE_CD_ROM_FILE_SYSTEM: ret = DRIVE_CDROM; break;
1230 case FILE_DEVICE_VIRTUAL_DISK: ret = DRIVE_RAMDISK; break;
1231 case FILE_DEVICE_NETWORK_FILE_SYSTEM: ret = DRIVE_REMOTE; break;
1232 case FILE_DEVICE_DISK_FILE_SYSTEM:
1233 if (info.Characteristics & FILE_REMOTE_DEVICE) ret = DRIVE_REMOTE;
1234 else if (info.Characteristics & FILE_REMOVABLE_MEDIA) ret = DRIVE_REMOVABLE;
1235 else ret = DRIVE_FIXED;
1238 ret = DRIVE_UNKNOWN;
1242 TRACE( "%s -> %d\n", debugstr_w(root), ret );
1247 /***********************************************************************
1248 * GetDriveTypeA (KERNEL32.@)
1250 * See GetDriveTypeW.
1252 UINT WINAPI GetDriveTypeA( LPCSTR root )
1254 WCHAR *rootW = NULL;
1256 if (root && !(rootW = FILE_name_AtoW( root, FALSE ))) return DRIVE_NO_ROOT_DIR;
1257 return GetDriveTypeW( rootW );
1261 /***********************************************************************
1262 * GetDiskFreeSpaceExW (KERNEL32.@)
1264 * This function is used to acquire the size of the available and
1265 * total space on a logical volume.
1269 * Zero on failure, nonzero upon success. Use GetLastError to obtain
1270 * detailed error information.
1273 BOOL WINAPI GetDiskFreeSpaceExW( LPCWSTR root, PULARGE_INTEGER avail,
1274 PULARGE_INTEGER total, PULARGE_INTEGER totalfree )
1276 FILE_FS_SIZE_INFORMATION info;
1282 TRACE( "%s,%p,%p,%p\n", debugstr_w(root), avail, total, totalfree );
1284 if (!open_device_root( root, &handle )) return FALSE;
1286 status = NtQueryVolumeInformationFile( handle, &io, &info, sizeof(info), FileFsSizeInformation );
1288 if (status != STATUS_SUCCESS)
1290 SetLastError( RtlNtStatusToDosError(status) );
1294 units = info.SectorsPerAllocationUnit * info.BytesPerSector;
1295 if (total) total->QuadPart = info.TotalAllocationUnits.QuadPart * units;
1296 if (totalfree) totalfree->QuadPart = info.AvailableAllocationUnits.QuadPart * units;
1297 /* FIXME: this one should take quotas into account */
1298 if (avail) avail->QuadPart = info.AvailableAllocationUnits.QuadPart * units;
1303 /***********************************************************************
1304 * GetDiskFreeSpaceExA (KERNEL32.@)
1306 * See GetDiskFreeSpaceExW.
1308 BOOL WINAPI GetDiskFreeSpaceExA( LPCSTR root, PULARGE_INTEGER avail,
1309 PULARGE_INTEGER total, PULARGE_INTEGER totalfree )
1311 WCHAR *rootW = NULL;
1313 if (root && !(rootW = FILE_name_AtoW( root, FALSE ))) return FALSE;
1314 return GetDiskFreeSpaceExW( rootW, avail, total, totalfree );
1318 /***********************************************************************
1319 * GetDiskFreeSpaceW (KERNEL32.@)
1321 BOOL WINAPI GetDiskFreeSpaceW( LPCWSTR root, LPDWORD cluster_sectors,
1322 LPDWORD sector_bytes, LPDWORD free_clusters,
1323 LPDWORD total_clusters )
1325 FILE_FS_SIZE_INFORMATION info;
1331 TRACE( "%s,%p,%p,%p,%p\n", debugstr_w(root),
1332 cluster_sectors, sector_bytes, free_clusters, total_clusters );
1334 if (!open_device_root( root, &handle )) return FALSE;
1336 status = NtQueryVolumeInformationFile( handle, &io, &info, sizeof(info), FileFsSizeInformation );
1338 if (status != STATUS_SUCCESS)
1340 SetLastError( RtlNtStatusToDosError(status) );
1344 units = info.SectorsPerAllocationUnit * info.BytesPerSector;
1346 if( GetVersion() & 0x80000000) { /* win3.x, 9x, ME */
1347 /* cap the size and available at 2GB as per specs */
1348 if (info.TotalAllocationUnits.QuadPart * units > 0x7fffffff) {
1349 info.TotalAllocationUnits.QuadPart = 0x7fffffff / units;
1350 if (info.AvailableAllocationUnits.QuadPart * units > 0x7fffffff)
1351 info.AvailableAllocationUnits.QuadPart = 0x7fffffff / units;
1353 /* nr. of clusters is always <= 65335 */
1354 while( info.TotalAllocationUnits.QuadPart > 65535 ) {
1355 info.TotalAllocationUnits.QuadPart /= 2;
1356 info.AvailableAllocationUnits.QuadPart /= 2;
1357 info.SectorsPerAllocationUnit *= 2;
1361 if (cluster_sectors) *cluster_sectors = info.SectorsPerAllocationUnit;
1362 if (sector_bytes) *sector_bytes = info.BytesPerSector;
1363 if (free_clusters) *free_clusters = info.AvailableAllocationUnits.u.LowPart;
1364 if (total_clusters) *total_clusters = info.TotalAllocationUnits.u.LowPart;
1369 /***********************************************************************
1370 * GetDiskFreeSpaceA (KERNEL32.@)
1372 BOOL WINAPI GetDiskFreeSpaceA( LPCSTR root, LPDWORD cluster_sectors,
1373 LPDWORD sector_bytes, LPDWORD free_clusters,
1374 LPDWORD total_clusters )
1376 WCHAR *rootW = NULL;
1378 if (root && !(rootW = FILE_name_AtoW( root, FALSE ))) return FALSE;
1379 return GetDiskFreeSpaceW( rootW, cluster_sectors, sector_bytes, free_clusters, total_clusters );
1382 /***********************************************************************
1383 * GetVolumePathNameA (KERNEL32.@)
1385 BOOL WINAPI GetVolumePathNameA(LPCSTR filename, LPSTR volumepathname, DWORD buflen)
1387 FIXME("(%s, %p, %d), stub!\n", debugstr_a(filename), volumepathname, buflen);
1388 SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
1392 /***********************************************************************
1393 * GetVolumePathNameW (KERNEL32.@)
1395 BOOL WINAPI GetVolumePathNameW(LPCWSTR filename, LPWSTR volumepathname, DWORD buflen)
1397 FIXME("(%s, %p, %d), stub!\n", debugstr_w(filename), volumepathname, buflen);
1398 SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
1402 /***********************************************************************
1403 * FindFirstVolumeA (KERNEL32.@)
1405 HANDLE WINAPI FindFirstVolumeA(LPSTR volume, DWORD len)
1407 WCHAR *buffer = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) );
1408 HANDLE handle = FindFirstVolumeW( buffer, len );
1410 if (handle != INVALID_HANDLE_VALUE)
1412 if (!WideCharToMultiByte( CP_ACP, 0, buffer, -1, volume, len, NULL, NULL ))
1414 FindVolumeClose( handle );
1415 handle = INVALID_HANDLE_VALUE;
1418 HeapFree( GetProcessHeap(), 0, buffer );
1422 /***********************************************************************
1423 * FindFirstVolumeW (KERNEL32.@)
1425 HANDLE WINAPI FindFirstVolumeW( LPWSTR volume, DWORD len )
1428 HANDLE mgr = CreateFileW( MOUNTMGR_DOS_DEVICE_NAME, 0, FILE_SHARE_READ|FILE_SHARE_WRITE,
1429 NULL, OPEN_EXISTING, 0, 0 );
1430 if (mgr == INVALID_HANDLE_VALUE) return INVALID_HANDLE_VALUE;
1434 MOUNTMGR_MOUNT_POINT input;
1435 MOUNTMGR_MOUNT_POINTS *output;
1437 if (!(output = HeapAlloc( GetProcessHeap(), 0, size )))
1439 SetLastError( ERROR_NOT_ENOUGH_MEMORY );
1442 memset( &input, 0, sizeof(input) );
1444 if (!DeviceIoControl( mgr, IOCTL_MOUNTMGR_QUERY_POINTS, &input, sizeof(input),
1445 output, size, NULL, NULL ))
1447 if (GetLastError() != ERROR_MORE_DATA) break;
1448 size = output->Size;
1449 HeapFree( GetProcessHeap(), 0, output );
1453 /* abuse the Size field to store the current index */
1455 if (!FindNextVolumeW( output, volume, len ))
1457 HeapFree( GetProcessHeap(), 0, output );
1458 return INVALID_HANDLE_VALUE;
1460 return (HANDLE)output;
1463 return INVALID_HANDLE_VALUE;
1466 /***********************************************************************
1467 * FindNextVolumeA (KERNEL32.@)
1469 BOOL WINAPI FindNextVolumeA( HANDLE handle, LPSTR volume, DWORD len )
1471 WCHAR *buffer = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) );
1474 if ((ret = FindNextVolumeW( handle, buffer, len )))
1476 if (!WideCharToMultiByte( CP_ACP, 0, buffer, -1, volume, len, NULL, NULL )) ret = FALSE;
1481 /***********************************************************************
1482 * FindNextVolumeW (KERNEL32.@)
1484 BOOL WINAPI FindNextVolumeW( HANDLE handle, LPWSTR volume, DWORD len )
1486 MOUNTMGR_MOUNT_POINTS *data = handle;
1488 while (data->Size < data->NumberOfMountPoints)
1490 static const WCHAR volumeW[] = {'\\','?','?','\\','V','o','l','u','m','e','{',};
1491 WCHAR *link = (WCHAR *)((char *)data + data->MountPoints[data->Size].SymbolicLinkNameOffset);
1492 DWORD size = data->MountPoints[data->Size].SymbolicLinkNameLength;
1494 /* skip non-volumes */
1495 if (size < sizeof(volumeW) || memcmp( link, volumeW, sizeof(volumeW) )) continue;
1496 if (size + sizeof(WCHAR) >= len * sizeof(WCHAR))
1498 SetLastError( ERROR_FILENAME_EXCED_RANGE );
1501 memcpy( volume, link, size );
1502 volume[1] = '\\'; /* map \??\ to \\?\ */
1503 volume[size / sizeof(WCHAR)] = '\\'; /* Windows appends a backslash */
1504 volume[size / sizeof(WCHAR) + 1] = 0;
1505 TRACE( "returning entry %u %s\n", data->Size - 1, debugstr_w(volume) );
1508 SetLastError( ERROR_NO_MORE_FILES );
1512 /***********************************************************************
1513 * FindVolumeClose (KERNEL32.@)
1515 BOOL WINAPI FindVolumeClose(HANDLE handle)
1517 return HeapFree( GetProcessHeap(), 0, handle );
1520 /***********************************************************************
1521 * FindFirstVolumeMountPointA (KERNEL32.@)
1523 HANDLE WINAPI FindFirstVolumeMountPointA(LPCSTR root, LPSTR mount_point, DWORD len)
1525 FIXME("(%s, %p, %d), stub!\n", debugstr_a(root), mount_point, len);
1526 SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
1527 return INVALID_HANDLE_VALUE;
1530 /***********************************************************************
1531 * FindFirstVolumeMountPointW (KERNEL32.@)
1533 HANDLE WINAPI FindFirstVolumeMountPointW(LPCWSTR root, LPWSTR mount_point, DWORD len)
1535 FIXME("(%s, %p, %d), stub!\n", debugstr_w(root), mount_point, len);
1536 SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
1537 return INVALID_HANDLE_VALUE;
1540 /***********************************************************************
1541 * FindVolumeMountPointClose (KERNEL32.@)
1543 BOOL WINAPI FindVolumeMountPointClose(HANDLE h)
1545 FIXME("(%p), stub!\n", h);