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Add 16x16 error, info and warning icons.
[wine.git] / dlls / kernel / volume.c
bloba09a332bc8ab94ca3d8ccb9197f366b72dc73549
1 /*
2 * Volume management functions
3 *
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
9 *
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.
14 *
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.
19 *
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
23 */
24
25 #include "config.h"
26 #include "wine/port.h"
27
28 #include <stdarg.h>
29 #include <stdlib.h>
30 #include <stdio.h>
31
32 #include "windef.h"
33 #include "winbase.h"
34 #include "winreg.h"
35 #include "winnls.h"
36 #include "winternl.h"
37 #include "ntstatus.h"
38 #include "winioctl.h"
39 #include "ntddstor.h"
40 #include "ntddcdrm.h"
41 #include "kernel_private.h"
42 #include "wine/library.h"
43 #include "wine/unicode.h"
44 #include "wine/debug.h"
45
46 WINE_DEFAULT_DEBUG_CHANNEL(volume);
47
48 #define SUPERBLOCK_SIZE 2048
49
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)
54
55 #define GETWORD(buf,off) MAKEWORD(buf[(off)],buf[(off+1)])
56 #define GETLONG(buf,off) MAKELONG(GETWORD(buf,off),GETWORD(buf,off+2))
57
58 enum fs_type
59 {
60 FS_ERROR, /* error accessing the device */
61 FS_UNKNOWN, /* unknown file system */
62 FS_FAT1216,
63 FS_FAT32,
64 FS_ISO9660
65 };
66
67 static const WCHAR drive_types[][8] =
68 {
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 */
76 };
77
78 /* read a Unix symlink; returned buffer must be freed by caller */
79 static char *read_symlink( const char *path )
80 {
81 char *buffer;
82 int ret, size = 128;
83
84 for (;;)
85 {
86 if (!(buffer = HeapAlloc( GetProcessHeap(), 0, size )))
87 {
88 SetLastError( ERROR_NOT_ENOUGH_MEMORY );
89 return 0;
90 }
91 ret = readlink( path, buffer, size );
92 if (ret == -1)
93 {
94 FILE_SetDosError();
95 HeapFree( GetProcessHeap(), 0, buffer );
96 return 0;
97 }
98 if (ret != size)
99 {
100 buffer[ret] = 0;
101 return buffer;
102 }
103 HeapFree( GetProcessHeap(), 0, buffer );
104 size *= 2;
105 }
106 }
107
108 /* get the path of a dos device symlink in the $WINEPREFIX/dosdevices directory */
109 static char *get_dos_device_path( LPCWSTR name )
110 {
111 const char *config_dir = wine_get_config_dir();
112 char *buffer, *dev;
113 int i;
114
115 if (!(buffer = HeapAlloc( GetProcessHeap(), 0,
116 strlen(config_dir) + sizeof("/dosdevices/") + 5 )))
117 {
118 SetLastError( ERROR_NOT_ENOUGH_MEMORY );
119 return NULL;
120 }
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;
127 dev[5] = 0;
128 return buffer;
129 }
130
131
132 /* open a handle to a device root */
133 static BOOL open_device_root( LPCWSTR root, HANDLE *handle )
134 {
135 static const WCHAR default_rootW[] = {'\\',0};
136 UNICODE_STRING nt_name;
137 OBJECT_ATTRIBUTES attr;
138 IO_STATUS_BLOCK io;
139 NTSTATUS status;
140
141 if (!root) root = default_rootW;
142 if (!RtlDosPathNameToNtPathName_U( root, &nt_name, NULL, NULL ))
143 {
144 SetLastError( ERROR_PATH_NOT_FOUND );
145 return FALSE;
146 }
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;
153
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)
158 {
159 SetLastError( RtlNtStatusToDosError(status) );
160 return FALSE;
161 }
162 return TRUE;
163 }
164
165
166 /* fetch the type of a drive from the registry */
167 static UINT get_registry_drive_type( const WCHAR *root )
168 {
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;
175 HKEY hkey;
176 DWORD dummy;
177 UINT ret = DRIVE_UNKNOWN;
178 char tmp[32 + sizeof(KEY_VALUE_PARTIAL_INFORMATION)];
179 WCHAR driveW[] = {'A',':',0};
180
181 attr.Length = sizeof(attr);
182 attr.RootDirectory = 0;
183 attr.ObjectName = &nameW;
184 attr.Attributes = 0;
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;
189
190 if (root) driveW[0] = root[0];
191 else
192 {
193 WCHAR path[MAX_PATH];
194 GetCurrentDirectoryW( MAX_PATH, path );
195 driveW[0] = path[0];
196 }
197
198 RtlInitUnicodeString( &nameW, driveW );
199 if (!NtQueryValueKey( hkey, &nameW, KeyValuePartialInformation, tmp, sizeof(tmp), &dummy ))
200 {
201 unsigned int i;
202 WCHAR *data = (WCHAR *)((KEY_VALUE_PARTIAL_INFORMATION *)tmp)->Data;
203
204 for (i = 0; i < sizeof(drive_types)/sizeof(drive_types[0]); i++)
205 {
206 if (!strcmpiW( data, drive_types[i] ))
207 {
208 ret = i;
209 break;
210 }
211 }
212 }
213 NtClose( hkey );
214 return ret;
215 }
216
217
218 /* create symlinks for the DOS drives; helper for VOLUME_CreateDevices */
219 static int create_drives( int devices_only )
220 {
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)];
229 char dest[1024];
230 WCHAR *p, name[3];
231 HKEY hkey;
232 DWORD dummy;
233 int i, count = 0;
234
235 attr.Length = sizeof(attr);
236 attr.RootDirectory = 0;
237 attr.ObjectName = &nameW;
238 attr.Attributes = 0;
239 attr.SecurityDescriptor = NULL;
240 attr.SecurityQualityOfService = NULL;
241
242 /* create symlinks for the drive roots */
243
244 if (!devices_only) for (i = 0; i < 26; i++)
245 {
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;
249
250 RtlInitUnicodeString( &nameW, PathW );
251 if (!NtQueryValueKey( hkey, &nameW, KeyValuePartialInformation, tmp, sizeof(tmp), &dummy ))
252 {
253 WCHAR path[1024];
254 WCHAR *data = (WCHAR *)((KEY_VALUE_PARTIAL_INFORMATION *)tmp)->Data;
255 ExpandEnvironmentStringsW( data, path, sizeof(path)/sizeof(WCHAR) );
256
257 p = path + strlenW(path) - 1;
258 while ((p > path) && (*p == '/')) *p-- = '\0';
259
260 name[0] = 'a' + i;
261 name[1] = ':';
262 name[2] = 0;
263
264 if (path[0] != '/')
265 {
266 /* relative paths are relative to config dir */
267 memmove( path + 3, path, (strlenW(path) + 1) * sizeof(WCHAR) );
268 path[0] = '.';
269 path[1] = '.';
270 path[2] = '/';
271 }
272 if (DefineDosDeviceW( DDD_RAW_TARGET_PATH, name, path ))
273 {
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 );
277 count++;
278 }
279 }
280 NtClose( hkey );
281 }
282
283 /* create symlinks for the drive devices */
284
285 for (i = 0; i < 26; i++)
286 {
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;
290
291 RtlInitUnicodeString( &nameW, DeviceW );
292 if (!NtQueryValueKey( hkey, &nameW, KeyValuePartialInformation, tmp, sizeof(tmp), &dummy ))
293 {
294 char *path, *p;
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);
300 p[-3] = 'a' + i;
301 if (!symlink( dest, path ))
302 {
303 MESSAGE( "Created symlink %s/dosdevices/%c:: -> %s\n",
304 wine_get_config_dir(), 'a' + i, dest );
305 count++;
306 }
307 HeapFree( GetProcessHeap(), 0, path );
308 }
309 NtClose( hkey );
310 }
311
312 return count;
313 }
314
315
316 /***********************************************************************
317 * VOLUME_CreateDevices
318 *
319 * Create the device files for the new device naming scheme.
320 * Should go away after a transition period.
321 */
322 void VOLUME_CreateDevices(void)
323 {
324 const char *config_dir = wine_get_config_dir();
325 char *buffer;
326 int i, count = 0;
327
328 if (!(buffer = HeapAlloc( GetProcessHeap(), 0,
329 strlen(config_dir) + sizeof("/dosdevices/a::") )))
330 return;
331
332 strcpy( buffer, config_dir );
333 strcat( buffer, "/dosdevices" );
334
335 if (!mkdir( buffer, 0777 )) /* we created it, so now create the devices */
336 {
337 HKEY hkey;
338 DWORD dummy;
339 OBJECT_ATTRIBUTES attr;
340 UNICODE_STRING nameW;
341 WCHAR *p, *devnameW;
342 char tmp[128];
343 WCHAR com[5] = {'C','O','M','1',0};
344 WCHAR lpt[5] = {'L','P','T','1',0};
345
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};
356
357 attr.Length = sizeof(attr);
358 attr.RootDirectory = 0;
359 attr.ObjectName = &nameW;
360 attr.Attributes = 0;
361 attr.SecurityDescriptor = NULL;
362 attr.SecurityQualityOfService = NULL;
363 RtlInitUnicodeString( &nameW, serialportsW );
364
365 if (!NtOpenKey( &hkey, KEY_ALL_ACCESS, &attr ))
366 {
367 RtlInitUnicodeString( &nameW, com );
368 for (i = 1; i <= 9; i++)
369 {
370 com[3] = '0' + i;
371 if (!NtQueryValueKey( hkey, &nameW, KeyValuePartialInformation,
372 tmp, sizeof(tmp), &dummy ))
373 {
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 ))
377 {
378 char devname[32];
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 );
382 count++;
383 }
384 }
385 }
386 NtClose( hkey );
387 }
388
389 RtlInitUnicodeString( &nameW, parallelportsW );
390 if (!NtOpenKey( &hkey, KEY_ALL_ACCESS, &attr ))
391 {
392 RtlInitUnicodeString( &nameW, lpt );
393 for (i = 1; i <= 9; i++)
394 {
395 lpt[3] = '0' + i;
396 if (!NtQueryValueKey( hkey, &nameW, KeyValuePartialInformation,
397 tmp, sizeof(tmp), &dummy ))
398 {
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 ))
402 {
403 char devname[32];
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 );
407 count++;
408 }
409 }
410 }
411 NtClose( hkey );
412 }
413 count += create_drives( FALSE );
414 }
415 else
416 {
417 struct stat st;
418 int i;
419
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++)
424 {
425 buffer[strlen(buffer)-2] = 'a' + i;
426 if (!lstat( buffer, &st )) break;
427 }
428 if (i == 26) count += create_drives( FALSE );
429 else
430 {
431 strcat( buffer, ":" );
432 for (i = 0; i < 26; i++)
433 {
434 buffer[strlen(buffer)-3] = 'a' + i;
435 if (!lstat( buffer, &st )) break;
436 }
437 if (i == 26) count += create_drives( TRUE );
438 }
439 }
440
441 if (count)
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" );
444
445 HeapFree( GetProcessHeap(), 0, buffer );
446 }
447
448
449 /******************************************************************
450 * VOLUME_FindCdRomDataBestVoldesc
451 */
452 static DWORD VOLUME_FindCdRomDataBestVoldesc( HANDLE handle )
453 {
454 BYTE cur_vd_type, max_vd_type = 0;
455 BYTE buffer[16];
456 DWORD size, offs, best_offs = 0, extra_offs = 0;
457
458 for (offs = 0x8000; offs <= 0x9800; offs += 0x800)
459 {
460 /* if 'CDROM' occurs at position 8, this is a pre-iso9660 cd, and
461 * the volume label is displaced forward by 8
462 */
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 */
470 break;
471 if (cur_vd_type > max_vd_type)
472 {
473 max_vd_type = cur_vd_type;
474 best_offs = offs + extra_offs;
475 }
476 }
477 return best_offs;
478 }
479
480
481 /***********************************************************************
482 * VOLUME_ReadFATSuperblock
483 */
484 static enum fs_type VOLUME_ReadFATSuperblock( HANDLE handle, BYTE *buff )
485 {
486 DWORD size;
487
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)
492 return FS_ERROR;
493
494 if (buff[0] == 0xE9 || (buff[0] == 0xEB && buff[2] == 0x90))
495 {
496 /* guess which type of FAT we have */
497 unsigned int sz, nsect, nclust;
498 sz = GETWORD(buff, 0x16);
499 if (!sz) sz = GETLONG(buff, 0x24);
500 nsect = GETWORD(buff, 0x13);
501 if (!nsect) nsect = GETLONG(buff, 0x20);
502 nsect -= GETWORD(buff, 0x0e) + buff[0x10] * sz +
503 (GETWORD(buff, 0x11) * 32 + (GETWORD(buff, 0x0b) - 1)) / GETWORD(buff, 0x0b);
504 nclust = nsect / buff[0x0d];
505
506 if (nclust < 65525)
507 {
508 if (buff[0x26] == 0x29 && !memcmp(buff+0x36, "FAT", 3))
509 {
510 /* FIXME: do really all FAT have their name beginning with
511 * "FAT" ? (At least FAT12, FAT16 and FAT32 have :)
512 */
513 return FS_FAT1216;
514 }
515 }
516 else if (!memcmp(buff+0x52, "FAT", 3)) return FS_FAT32;
517 }
518 return FS_UNKNOWN;
519 }
520
521
522 /***********************************************************************
523 * VOLUME_ReadCDSuperblock
524 */
525 static enum fs_type VOLUME_ReadCDSuperblock( HANDLE handle, BYTE *buff )
526 {
527 DWORD size, offs = VOLUME_FindCdRomDataBestVoldesc( handle );
528
529 if (!offs) return FS_UNKNOWN;
530
531 if (SetFilePointer( handle, offs, NULL, FILE_BEGIN ) != offs ||
532 !ReadFile( handle, buff, SUPERBLOCK_SIZE, &size, NULL ) ||
533 size != SUPERBLOCK_SIZE)
534 return FS_ERROR;
535
536 /* check for iso9660 present */
537 if (!memcmp(&buff[1], "CD001", 5)) return FS_ISO9660;
538 return FS_UNKNOWN;
539 }
540
541
542 /**************************************************************************
543 * VOLUME_GetSuperblockLabel
544 */
545 static void VOLUME_GetSuperblockLabel( enum fs_type type, const BYTE *superblock,
546 WCHAR *label, DWORD len )
547 {
548 const BYTE *label_ptr = NULL;
549 DWORD label_len;
550
551 switch(type)
552 {
553 case FS_ERROR:
554 case FS_UNKNOWN:
555 label_len = 0;
556 break;
557 case FS_FAT1216:
558 label_ptr = superblock + 0x2b;
559 label_len = 11;
560 break;
561 case FS_FAT32:
562 label_ptr = superblock + 0x47;
563 label_len = 11;
564 break;
565 case FS_ISO9660:
566 {
567 BYTE ver = superblock[0x5a];
568
569 if (superblock[0x58] == 0x25 && superblock[0x59] == 0x2f && /* Unicode ID */
570 ((ver == 0x40) || (ver == 0x43) || (ver == 0x45)))
571 { /* yippee, unicode */
572 unsigned int i;
573
574 if (len > 17) len = 17;
575 for (i = 0; i < len-1; i++)
576 label[i] = (superblock[40+2*i] << 8) | superblock[41+2*i];
577 label[i] = 0;
578 while (i && label[i-1] == ' ') label[--i] = 0;
579 return;
580 }
581 label_ptr = superblock + 40;
582 label_len = 32;
583 break;
584 }
585 }
586 if (label_len) RtlMultiByteToUnicodeN( label, (len-1) * sizeof(WCHAR),
587 &label_len, label_ptr, label_len );
588 label_len /= sizeof(WCHAR);
589 label[label_len] = 0;
590 while (label_len && label[label_len-1] == ' ') label[--label_len] = 0;
591 }
592
593
594 /**************************************************************************
595 * VOLUME_SetSuperblockLabel
596 */
597 static BOOL VOLUME_SetSuperblockLabel( enum fs_type type, HANDLE handle, const WCHAR *label )
598 {
599 BYTE label_data[11];
600 DWORD offset, len;
601
602 switch(type)
603 {
604 case FS_FAT1216:
605 offset = 0x2b;
606 break;
607 case FS_FAT32:
608 offset = 0x47;
609 break;
610 default:
611 SetLastError( ERROR_ACCESS_DENIED );
612 return FALSE;
613 }
614 RtlUnicodeToMultiByteN( label_data, sizeof(label_data), &len,
615 label, strlenW(label) * sizeof(WCHAR) );
616 if (len < sizeof(label_data))
617 memset( label_data + len, ' ', sizeof(label_data) - len );
618
619 return (SetFilePointer( handle, offset, NULL, FILE_BEGIN ) == offset &&
620 WriteFile( handle, label_data, sizeof(label_data), &len, NULL ));
621 }
622
623
624 /**************************************************************************
625 * VOLUME_GetSuperblockSerial
626 */
627 static DWORD VOLUME_GetSuperblockSerial( enum fs_type type, const BYTE *superblock )
628 {
629 switch(type)
630 {
631 case FS_ERROR:
632 case FS_UNKNOWN:
633 break;
634 case FS_FAT1216:
635 return GETLONG( superblock, 0x27 );
636 case FS_FAT32:
637 return GETLONG( superblock, 0x33 );
638 case FS_ISO9660:
639 {
640 BYTE sum[4];
641 int i;
642
643 sum[0] = sum[1] = sum[2] = sum[3] = 0;
644 for (i = 0; i < 2048; i += 4)
645 {
646 /* DON'T optimize this into DWORD !! (breaks overflow) */
647 sum[0] += superblock[i+0];
648 sum[1] += superblock[i+1];
649 sum[2] += superblock[i+2];
650 sum[3] += superblock[i+3];
651 }
652 /*
653 * OK, another braindead one... argh. Just believe it.
654 * Me$$ysoft chose to reverse the serial number in NT4/W2K.
655 * It's true and nobody will ever be able to change it.
656 */
657 if (GetVersion() & 0x80000000)
658 return (sum[3] << 24) | (sum[2] << 16) | (sum[1] << 8) | sum[0];
659 else
660 return (sum[0] << 24) | (sum[1] << 16) | (sum[2] << 8) | sum[3];
661 }
662 }
663 return 0;
664 }
665
666
667 /**************************************************************************
668 * VOLUME_GetAudioCDSerial
669 */
670 static DWORD VOLUME_GetAudioCDSerial( const CDROM_TOC *toc )
671 {
672 DWORD serial = 0;
673 int i;
674
675 for (i = 0; i <= toc->LastTrack - toc->FirstTrack; i++)
676 serial += ((toc->TrackData[i].Address[1] << 16) |
677 (toc->TrackData[i].Address[2] << 8) |
678 toc->TrackData[i].Address[3]);
679
680 /*
681 * dwStart, dwEnd collect the beginning and end of the disc respectively, in
682 * frames.
683 * There it is collected for correcting the serial when there are less than
684 * 3 tracks.
685 */
686 if (toc->LastTrack - toc->FirstTrack + 1 < 3)
687 {
688 DWORD dwStart = FRAME_OF_TOC(toc, toc->FirstTrack);
689 DWORD dwEnd = FRAME_OF_TOC(toc, toc->LastTrack + 1);
690 serial += dwEnd - dwStart;
691 }
692 return serial;
693 }
694
695
696 /***********************************************************************
697 * GetVolumeInformationW (KERNEL32.@)
698 */
699 BOOL WINAPI GetVolumeInformationW( LPCWSTR root, LPWSTR label, DWORD label_len,
700 DWORD *serial, DWORD *filename_len, DWORD *flags,
701 LPWSTR fsname, DWORD fsname_len )
702 {
703 static const WCHAR audiocdW[] = {'A','u','d','i','o',' ','C','D',0};
704 static const WCHAR fatW[] = {'F','A','T',0};
705 static const WCHAR ntfsW[] = {'N','T','F','S',0};
706 static const WCHAR cdfsW[] = {'C','D','F','S',0};
707
708 WCHAR device[] = {'\\','\\','.','\\','A',':',0};
709 HANDLE handle;
710 enum fs_type type = FS_UNKNOWN;
711
712 if (!root)
713 {
714 WCHAR path[MAX_PATH];
715 GetCurrentDirectoryW( MAX_PATH, path );
716 device[4] = path[0];
717 }
718 else
719 {
720 if (!root[0] || root[1] != ':')
721 {
722 SetLastError( ERROR_INVALID_NAME );
723 return FALSE;
724 }
725 device[4] = root[0];
726 }
727
728 /* try to open the device */
729
730 handle = CreateFileW( device, GENERIC_READ, FILE_SHARE_READ|FILE_SHARE_WRITE,
731 NULL, OPEN_EXISTING, 0, 0 );
732 if (handle != INVALID_HANDLE_VALUE)
733 {
734 BYTE superblock[SUPERBLOCK_SIZE];
735 CDROM_TOC toc;
736 DWORD br;
737
738 /* check for audio CD */
739 /* FIXME: we only check the first track for now */
740 if (DeviceIoControl( handle, IOCTL_CDROM_READ_TOC, NULL, 0, &toc, sizeof(toc), &br, 0 ))
741 {
742 if (!(toc.TrackData[0].Control & 0x04)) /* audio track */
743 {
744 TRACE( "%s: found audio CD\n", debugstr_w(device) );
745 if (label) lstrcpynW( label, audiocdW, label_len );
746 if (serial) *serial = VOLUME_GetAudioCDSerial( &toc );
747 CloseHandle( handle );
748 type = FS_ISO9660;
749 goto fill_fs_info;
750 }
751 type = VOLUME_ReadCDSuperblock( handle, superblock );
752 }
753 else
754 {
755 type = VOLUME_ReadFATSuperblock( handle, superblock );
756 if (type == FS_UNKNOWN) type = VOLUME_ReadCDSuperblock( handle, superblock );
757 }
758 CloseHandle( handle );
759 TRACE( "%s: found fs type %d\n", debugstr_w(device), type );
760 if (type == FS_ERROR) return FALSE;
761
762 if (label && label_len) VOLUME_GetSuperblockLabel( type, superblock, label, label_len );
763 if (serial) *serial = VOLUME_GetSuperblockSerial( type, superblock );
764 goto fill_fs_info;
765 }
766 else TRACE( "cannot open device %s: err %ld\n", debugstr_w(device), GetLastError() );
767
768 /* we couldn't open the device, fallback to default strategy */
769
770 switch(GetDriveTypeW( root ))
771 {
772 case DRIVE_UNKNOWN:
773 case DRIVE_NO_ROOT_DIR:
774 SetLastError( ERROR_NOT_READY );
775 return FALSE;
776 case DRIVE_REMOVABLE:
777 case DRIVE_FIXED:
778 case DRIVE_REMOTE:
779 case DRIVE_RAMDISK:
780 type = FS_UNKNOWN;
781 break;
782 case DRIVE_CDROM:
783 type = FS_ISO9660;
784 break;
785 }
786
787 if (label && label_len)
788 {
789 WCHAR labelW[] = {'A',':','\\','.','w','i','n','d','o','w','s','-','l','a','b','e','l',0};
790
791 labelW[0] = device[4];
792 handle = CreateFileW( labelW, GENERIC_READ, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL,
793 OPEN_EXISTING, 0, 0 );
794 if (handle != INVALID_HANDLE_VALUE)
795 {
796 char buffer[256], *p;
797 DWORD size;
798
799 if (!ReadFile( handle, buffer, sizeof(buffer)-1, &size, NULL )) size = 0;
800 CloseHandle( handle );
801 p = buffer + size;
802 while (p > buffer && (p[-1] == ' ' || p[-1] == '\r' || p[-1] == '\n')) p--;
803 *p = 0;
804 if (!MultiByteToWideChar( CP_UNIXCP, 0, buffer, -1, label, label_len ))
805 label[label_len-1] = 0;
806 }
807 else label[0] = 0;
808 }
809 if (serial)
810 {
811 WCHAR serialW[] = {'A',':','\\','.','w','i','n','d','o','w','s','-','s','e','r','i','a','l',0};
812
813 serialW[0] = device[4];
814 handle = CreateFileW( serialW, GENERIC_READ, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL,
815 OPEN_EXISTING, 0, 0 );
816 if (handle != INVALID_HANDLE_VALUE)
817 {
818 char buffer[32];
819 DWORD size;
820
821 if (!ReadFile( handle, buffer, sizeof(buffer)-1, &size, NULL )) size = 0;
822 CloseHandle( handle );
823 buffer[size] = 0;
824 *serial = strtoul( buffer, NULL, 16 );
825 }
826 else *serial = 0;
827 }
828
829 fill_fs_info: /* now fill in the information that depends on the file system type */
830
831 switch(type)
832 {
833 case FS_ISO9660:
834 if (fsname) lstrcpynW( fsname, cdfsW, fsname_len );
835 if (filename_len) *filename_len = 221;
836 if (flags) *flags = FILE_READ_ONLY_VOLUME;
837 break;
838 case FS_FAT1216:
839 case FS_FAT32:
840 if (fsname) lstrcpynW( fsname, fatW, fsname_len );
841 if (filename_len) *filename_len = 255;
842 if (flags) *flags = FILE_CASE_PRESERVED_NAMES; /* FIXME */
843 break;
844 default:
845 if (fsname) lstrcpynW( fsname, ntfsW, fsname_len );
846 if (filename_len) *filename_len = 255;
847 if (flags) *flags = FILE_CASE_PRESERVED_NAMES;
848 break;
849 }
850 return TRUE;
851 }
852
853
854 /***********************************************************************
855 * GetVolumeInformationA (KERNEL32.@)
856 */
857 BOOL WINAPI GetVolumeInformationA( LPCSTR root, LPSTR label,
858 DWORD label_len, DWORD *serial,
859 DWORD *filename_len, DWORD *flags,
860 LPSTR fsname, DWORD fsname_len )
861 {
862 WCHAR *rootW = NULL;
863 LPWSTR labelW, fsnameW;
864 BOOL ret;
865
866 if (root && !(rootW = FILE_name_AtoW( root, FALSE ))) return FALSE;
867
868 labelW = label ? HeapAlloc(GetProcessHeap(), 0, label_len * sizeof(WCHAR)) : NULL;
869 fsnameW = fsname ? HeapAlloc(GetProcessHeap(), 0, fsname_len * sizeof(WCHAR)) : NULL;
870
871 if ((ret = GetVolumeInformationW(rootW, labelW, label_len, serial,
872 filename_len, flags, fsnameW, fsname_len)))
873 {
874 if (label) FILE_name_WtoA( labelW, -1, label, label_len );
875 if (fsname) FILE_name_WtoA( fsnameW, -1, fsname, fsname_len );
876 }
877
878 if (labelW) HeapFree( GetProcessHeap(), 0, labelW );
879 if (fsnameW) HeapFree( GetProcessHeap(), 0, fsnameW );
880 return ret;
881 }
882
883
884
885 /***********************************************************************
886 * SetVolumeLabelW (KERNEL32.@)
887 */
888 BOOL WINAPI SetVolumeLabelW( LPCWSTR root, LPCWSTR label )
889 {
890 WCHAR device[] = {'\\','\\','.','\\','A',':',0};
891 HANDLE handle;
892 enum fs_type type = FS_UNKNOWN;
893
894 if (!root)
895 {
896 WCHAR path[MAX_PATH];
897 GetCurrentDirectoryW( MAX_PATH, path );
898 device[4] = path[0];
899 }
900 else
901 {
902 if (!root[0] || root[1] != ':')
903 {
904 SetLastError( ERROR_INVALID_NAME );
905 return FALSE;
906 }
907 device[4] = root[0];
908 }
909
910 /* try to open the device */
911
912 handle = CreateFileW( device, GENERIC_READ|GENERIC_WRITE, FILE_SHARE_READ|FILE_SHARE_WRITE,
913 NULL, OPEN_EXISTING, 0, 0 );
914 if (handle == INVALID_HANDLE_VALUE)
915 {
916 /* try read-only */
917 handle = CreateFileW( device, GENERIC_READ, FILE_SHARE_READ|FILE_SHARE_WRITE,
918 NULL, OPEN_EXISTING, 0, 0 );
919 if (handle != INVALID_HANDLE_VALUE)
920 {
921 /* device can be read but not written, return error */
922 CloseHandle( handle );
923 SetLastError( ERROR_ACCESS_DENIED );
924 return FALSE;
925 }
926 }
927
928 if (handle != INVALID_HANDLE_VALUE)
929 {
930 BYTE superblock[SUPERBLOCK_SIZE];
931 BOOL ret;
932
933 type = VOLUME_ReadFATSuperblock( handle, superblock );
934 ret = VOLUME_SetSuperblockLabel( type, handle, label );
935 CloseHandle( handle );
936 return ret;
937 }
938 else
939 {
940 TRACE( "cannot open device %s: err %ld\n", debugstr_w(device), GetLastError() );
941 if (GetLastError() != ERROR_ACCESS_DENIED) return FALSE;
942 }
943
944 /* we couldn't open the device, fallback to default strategy */
945
946 switch(GetDriveTypeW( root ))
947 {
948 case DRIVE_UNKNOWN:
949 case DRIVE_NO_ROOT_DIR:
950 SetLastError( ERROR_NOT_READY );
951 break;
952 case DRIVE_REMOVABLE:
953 case DRIVE_FIXED:
954 {
955 WCHAR labelW[] = {'A',':','\\','.','w','i','n','d','o','w','s','-','l','a','b','e','l',0};
956
957 labelW[0] = device[4];
958 handle = CreateFileW( labelW, GENERIC_WRITE, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL,
959 CREATE_ALWAYS, 0, 0 );
960 if (handle != INVALID_HANDLE_VALUE)
961 {
962 char buffer[64];
963 DWORD size;
964
965 if (!WideCharToMultiByte( CP_UNIXCP, 0, label, -1, buffer, sizeof(buffer), NULL, NULL ))
966 buffer[sizeof(buffer)-1] = 0;
967 WriteFile( handle, buffer, strlen(buffer), &size, NULL );
968 CloseHandle( handle );
969 return TRUE;
970 }
971 break;
972 }
973 case DRIVE_REMOTE:
974 case DRIVE_RAMDISK:
975 case DRIVE_CDROM:
976 SetLastError( ERROR_ACCESS_DENIED );
977 break;
978 }
979 return FALSE;
980 }
981
982 /***********************************************************************
983 * SetVolumeLabelA (KERNEL32.@)
984 */
985 BOOL WINAPI SetVolumeLabelA(LPCSTR root, LPCSTR volname)
986 {
987 WCHAR *rootW = NULL, *volnameW = NULL;
988 BOOL ret;
989
990 if (root && !(rootW = FILE_name_AtoW( root, FALSE ))) return FALSE;
991 if (volname && !(volnameW = FILE_name_AtoW( volname, TRUE ))) return FALSE;
992 ret = SetVolumeLabelW( rootW, volnameW );
993 if (volnameW) HeapFree( GetProcessHeap(), 0, volnameW );
994 return ret;
995 }
996
997
998 /***********************************************************************
999 * GetVolumeNameForVolumeMountPointW (KERNEL32.@)
1000 */
1001 BOOL WINAPI GetVolumeNameForVolumeMountPointW(LPCWSTR str, LPWSTR dst, DWORD size)
1002 {
1003 FIXME("(%s, %p, %lx): stub\n", debugstr_w(str), dst, size);
1004 return 0;
1005 }
1006
1007
1008 /***********************************************************************
1009 * DefineDosDeviceW (KERNEL32.@)
1010 */
1011 BOOL WINAPI DefineDosDeviceW( DWORD flags, LPCWSTR devname, LPCWSTR targetpath )
1012 {
1013 DWORD len, dosdev;
1014 BOOL ret = FALSE;
1015 char *path = NULL, *target, *p;
1016
1017 if (!(flags & DDD_REMOVE_DEFINITION))
1018 {
1019 if (!(flags & DDD_RAW_TARGET_PATH))
1020 {
1021 FIXME( "(0x%08lx,%s,%s) DDD_RAW_TARGET_PATH flag not set, not supported yet\n",
1022 flags, debugstr_w(devname), debugstr_w(targetpath) );
1023 SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
1024 return FALSE;
1025 }
1026
1027 len = WideCharToMultiByte( CP_UNIXCP, 0, targetpath, -1, NULL, 0, NULL, NULL );
1028 if ((target = HeapAlloc( GetProcessHeap(), 0, len )))
1029 {
1030 WideCharToMultiByte( CP_UNIXCP, 0, targetpath, -1, target, len, NULL, NULL );
1031 for (p = target; *p; p++) if (*p == '\\') *p = '/';
1032 }
1033 else
1034 {
1035 SetLastError( ERROR_NOT_ENOUGH_MEMORY );
1036 return FALSE;
1037 }
1038 }
1039 else target = NULL;
1040
1041 /* first check for a DOS device */
1042
1043 if ((dosdev = RtlIsDosDeviceName_U( devname )))
1044 {
1045 WCHAR name[5];
1046
1047 memcpy( name, devname + HIWORD(dosdev)/sizeof(WCHAR), LOWORD(dosdev) );
1048 name[LOWORD(dosdev)/sizeof(WCHAR)] = 0;
1049 path = get_dos_device_path( name );
1050 }
1051 else if (isalphaW(devname[0]) && devname[1] == ':' && !devname[2]) /* drive mapping */
1052 {
1053 path = get_dos_device_path( devname );
1054 }
1055 else SetLastError( ERROR_FILE_NOT_FOUND );
1056
1057 if (path)
1058 {
1059 if (target)
1060 {
1061 TRACE( "creating symlink %s -> %s\n", path, target );
1062 unlink( path );
1063 if (!symlink( target, path )) ret = TRUE;
1064 else FILE_SetDosError();
1065 }
1066 else
1067 {
1068 TRACE( "removing symlink %s\n", path );
1069 if (!unlink( path )) ret = TRUE;
1070 else FILE_SetDosError();
1071 }
1072 HeapFree( GetProcessHeap(), 0, path );
1073 }
1074 if (target) HeapFree( GetProcessHeap(), 0, target );
1075 return ret;
1076 }
1077
1078
1079 /***********************************************************************
1080 * DefineDosDeviceA (KERNEL32.@)
1081 */
1082 BOOL WINAPI DefineDosDeviceA(DWORD flags, LPCSTR devname, LPCSTR targetpath)
1083 {
1084 WCHAR *devW, *targetW = NULL;
1085 BOOL ret;
1086
1087 if (!(devW = FILE_name_AtoW( devname, FALSE ))) return FALSE;
1088 if (targetpath && !(targetW = FILE_name_AtoW( targetpath, TRUE ))) return FALSE;
1089 ret = DefineDosDeviceW(flags, devW, targetW);
1090 if (targetW) HeapFree( GetProcessHeap(), 0, targetW );
1091 return ret;
1092 }
1093
1094
1095 /***********************************************************************
1096 * QueryDosDeviceW (KERNEL32.@)
1097 *
1098 * returns array of strings terminated by \0, terminated by \0
1099 */
1100 DWORD WINAPI QueryDosDeviceW( LPCWSTR devname, LPWSTR target, DWORD bufsize )
1101 {
1102 static const WCHAR auxW[] = {'A','U','X',0};
1103 static const WCHAR nulW[] = {'N','U','L',0};
1104 static const WCHAR prnW[] = {'P','R','N',0};
1105 static const WCHAR comW[] = {'C','O','M',0};
1106 static const WCHAR lptW[] = {'L','P','T',0};
1107 static const WCHAR rootW[] = {'A',':','\\',0};
1108 static const WCHAR com0W[] = {'\\','?','?','\\','C','O','M','0',0};
1109 static const WCHAR com1W[] = {'\\','D','o','s','D','e','v','i','c','e','s','\\','C','O','M','1',0,0};
1110 static const WCHAR lpt1W[] = {'\\','D','o','s','D','e','v','i','c','e','s','\\','L','P','T','1',0,0};
1111
1112 UNICODE_STRING nt_name;
1113 ANSI_STRING unix_name;
1114 WCHAR nt_buffer[10];
1115 NTSTATUS status;
1116
1117 if (!bufsize)
1118 {
1119 SetLastError( ERROR_INSUFFICIENT_BUFFER );
1120 return 0;
1121 }
1122
1123 if (devname)
1124 {
1125 WCHAR *p, name[5];
1126 char *path, *link;
1127 DWORD dosdev, ret = 0;
1128
1129 if ((dosdev = RtlIsDosDeviceName_U( devname )))
1130 {
1131 memcpy( name, devname + HIWORD(dosdev)/sizeof(WCHAR), LOWORD(dosdev) );
1132 name[LOWORD(dosdev)/sizeof(WCHAR)] = 0;
1133 }
1134 else if (devname[0] && devname[1] == ':' && !devname[2])
1135 {
1136 memcpy( name, devname, 3 * sizeof(WCHAR) );
1137 }
1138 else
1139 {
1140 SetLastError( ERROR_BAD_PATHNAME );
1141 return 0;
1142 }
1143
1144 if (!(path = get_dos_device_path( name ))) return 0;
1145 link = read_symlink( path );
1146 HeapFree( GetProcessHeap(), 0, path );
1147
1148 if (link)
1149 {
1150 ret = MultiByteToWideChar( CP_UNIXCP, 0, link, -1, target, bufsize );
1151 HeapFree( GetProcessHeap(), 0, link );
1152 }
1153 else if (dosdev) /* look for device defaults */
1154 {
1155 if (!strcmpiW( name, auxW ))
1156 {
1157 if (bufsize >= sizeof(com1W)/sizeof(WCHAR))
1158 {
1159 memcpy( target, com1W, sizeof(com1W) );
1160 ret = sizeof(com1W)/sizeof(WCHAR);
1161 }
1162 else SetLastError( ERROR_INSUFFICIENT_BUFFER );
1163 return ret;
1164 }
1165 if (!strcmpiW( name, prnW ))
1166 {
1167 if (bufsize >= sizeof(lpt1W)/sizeof(WCHAR))
1168 {
1169 memcpy( target, lpt1W, sizeof(lpt1W) );
1170 ret = sizeof(lpt1W)/sizeof(WCHAR);
1171 }
1172 else SetLastError( ERROR_INSUFFICIENT_BUFFER );
1173 return ret;
1174 }
1175
1176 nt_buffer[0] = '\\';
1177 nt_buffer[1] = '?';
1178 nt_buffer[2] = '?';
1179 nt_buffer[3] = '\\';
1180 strcpyW( nt_buffer + 4, name );
1181 RtlInitUnicodeString( &nt_name, nt_buffer );
1182 status = wine_nt_to_unix_file_name( &nt_name, &unix_name, FILE_OPEN, TRUE );
1183 if (status) SetLastError( RtlNtStatusToDosError(status) );
1184 else
1185 {
1186 ret = MultiByteToWideChar( CP_UNIXCP, 0, unix_name.Buffer, -1, target, bufsize );
1187 RtlFreeAnsiString( &unix_name );
1188 }
1189 }
1190
1191 if (ret)
1192 {
1193 if (ret < bufsize) target[ret++] = 0; /* add an extra null */
1194 for (p = target; *p; p++) if (*p == '/') *p = '\\';
1195 }
1196
1197 return ret;
1198 }
1199 else /* return a list of all devices */
1200 {
1201 WCHAR *p = target;
1202 int i;
1203
1204 if (bufsize <= (sizeof(auxW)+sizeof(nulW)+sizeof(prnW))/sizeof(WCHAR))
1205 {
1206 SetLastError( ERROR_INSUFFICIENT_BUFFER );
1207 return 0;
1208 }
1209
1210 memcpy( p, auxW, sizeof(auxW) );
1211 p += sizeof(auxW) / sizeof(WCHAR);
1212 memcpy( p, nulW, sizeof(nulW) );
1213 p += sizeof(nulW) / sizeof(WCHAR);
1214 memcpy( p, prnW, sizeof(prnW) );
1215 p += sizeof(prnW) / sizeof(WCHAR);
1216
1217 strcpyW( nt_buffer, com0W );
1218 RtlInitUnicodeString( &nt_name, nt_buffer );
1219
1220 for (i = 1; i <= 9; i++)
1221 {
1222 nt_buffer[7] = '0' + i;
1223 if (!wine_nt_to_unix_file_name( &nt_name, &unix_name, FILE_OPEN, TRUE ))
1224 {
1225 RtlFreeAnsiString( &unix_name );
1226 if (p + 5 >= target + bufsize)
1227 {
1228 SetLastError( ERROR_INSUFFICIENT_BUFFER );
1229 return 0;
1230 }
1231 strcpyW( p, comW );
1232 p[3] = '0' + i;
1233 p[4] = 0;
1234 p += 5;
1235 }
1236 }
1237 strcpyW( nt_buffer + 4, lptW );
1238 for (i = 1; i <= 9; i++)
1239 {
1240 nt_buffer[7] = '0' + i;
1241 if (!wine_nt_to_unix_file_name( &nt_name, &unix_name, FILE_OPEN, TRUE ))
1242 {
1243 RtlFreeAnsiString( &unix_name );
1244 if (p + 5 >= target + bufsize)
1245 {
1246 SetLastError( ERROR_INSUFFICIENT_BUFFER );
1247 return 0;
1248 }
1249 strcpyW( p, lptW );
1250 p[3] = '0' + i;
1251 p[4] = 0;
1252 p += 5;
1253 }
1254 }
1255
1256 strcpyW( nt_buffer + 4, rootW );
1257 RtlInitUnicodeString( &nt_name, nt_buffer );
1258
1259 for (i = 0; i < 26; i++)
1260 {
1261 nt_buffer[4] = 'a' + i;
1262 if (!wine_nt_to_unix_file_name( &nt_name, &unix_name, FILE_OPEN, TRUE ))
1263 {
1264 RtlFreeAnsiString( &unix_name );
1265 if (p + 3 >= target + bufsize)
1266 {
1267 SetLastError( ERROR_INSUFFICIENT_BUFFER );
1268 return 0;
1269 }
1270 *p++ = 'A' + i;
1271 *p++ = ':';
1272 *p++ = 0;
1273 }
1274 }
1275 *p++ = 0; /* terminating null */
1276 return p - target;
1277 }
1278 }
1279
1280
1281 /***********************************************************************
1282 * QueryDosDeviceA (KERNEL32.@)
1283 *
1284 * returns array of strings terminated by \0, terminated by \0
1285 */
1286 DWORD WINAPI QueryDosDeviceA( LPCSTR devname, LPSTR target, DWORD bufsize )
1287 {
1288 DWORD ret = 0, retW;
1289 WCHAR *devnameW;
1290 LPWSTR targetW;
1291
1292 if (!(devnameW = FILE_name_AtoW( devname, FALSE ))) return 0;
1293
1294 targetW = HeapAlloc( GetProcessHeap(),0, bufsize * sizeof(WCHAR) );
1295 if (!targetW)
1296 {
1297 SetLastError( ERROR_NOT_ENOUGH_MEMORY );
1298 return 0;
1299 }
1300
1301 retW = QueryDosDeviceW(devnameW, targetW, bufsize);
1302
1303 ret = FILE_name_WtoA( targetW, retW, target, bufsize );
1304
1305 HeapFree(GetProcessHeap(), 0, targetW);
1306 return ret;
1307 }
1308
1309
1310 /***********************************************************************
1311 * GetLogicalDrives (KERNEL32.@)
1312 */
1313 DWORD WINAPI GetLogicalDrives(void)
1314 {
1315 const char *config_dir = wine_get_config_dir();
1316 struct stat st;
1317 char *buffer, *dev;
1318 DWORD ret = 0;
1319 int i;
1320
1321 if (!(buffer = HeapAlloc( GetProcessHeap(), 0, strlen(config_dir) + sizeof("/dosdevices/a:") )))
1322 {
1323 SetLastError( ERROR_NOT_ENOUGH_MEMORY );
1324 return 0;
1325 }
1326 strcpy( buffer, config_dir );
1327 strcat( buffer, "/dosdevices/a:" );
1328 dev = buffer + strlen(buffer) - 2;
1329
1330 for (i = 0; i < 26; i++)
1331 {
1332 *dev = 'a' + i;
1333 if (!stat( buffer, &st )) ret |= (1 << i);
1334 }
1335 HeapFree( GetProcessHeap(), 0, buffer );
1336 return ret;
1337 }
1338
1339
1340 /***********************************************************************
1341 * GetLogicalDriveStringsA (KERNEL32.@)
1342 */
1343 UINT WINAPI GetLogicalDriveStringsA( UINT len, LPSTR buffer )
1344 {
1345 DWORD drives = GetLogicalDrives();
1346 UINT drive, count;
1347
1348 for (drive = count = 0; drive < 26; drive++) if (drives & (1 << drive)) count++;
1349 if ((count * 4) + 1 > len) return count * 4 + 1;
1350
1351 for (drive = 0; drive < 26; drive++)
1352 {
1353 if (drives & (1 << drive))
1354 {
1355 *buffer++ = 'a' + drive;
1356 *buffer++ = ':';
1357 *buffer++ = '\\';
1358 *buffer++ = 0;
1359 }
1360 }
1361 *buffer = 0;
1362 return count * 4;
1363 }
1364
1365
1366 /***********************************************************************
1367 * GetLogicalDriveStringsW (KERNEL32.@)
1368 */
1369 UINT WINAPI GetLogicalDriveStringsW( UINT len, LPWSTR buffer )
1370 {
1371 DWORD drives = GetLogicalDrives();
1372 UINT drive, count;
1373
1374 for (drive = count = 0; drive < 26; drive++) if (drives & (1 << drive)) count++;
1375 if ((count * 4) + 1 > len) return count * 4 + 1;
1376
1377 for (drive = 0; drive < 26; drive++)
1378 {
1379 if (drives & (1 << drive))
1380 {
1381 *buffer++ = 'a' + drive;
1382 *buffer++ = ':';
1383 *buffer++ = '\\';
1384 *buffer++ = 0;
1385 }
1386 }
1387 *buffer = 0;
1388 return count * 4;
1389 }
1390
1391
1392 /***********************************************************************
1393 * GetDriveTypeW (KERNEL32.@)
1394 *
1395 * Returns the type of the disk drive specified. If root is NULL the
1396 * root of the current directory is used.
1397 *
1398 * RETURNS
1399 *
1400 * Type of drive (from Win32 SDK):
1401 *
1402 * DRIVE_UNKNOWN unable to find out anything about the drive
1403 * DRIVE_NO_ROOT_DIR nonexistent root dir
1404 * DRIVE_REMOVABLE the disk can be removed from the machine
1405 * DRIVE_FIXED the disk can not be removed from the machine
1406 * DRIVE_REMOTE network disk
1407 * DRIVE_CDROM CDROM drive
1408 * DRIVE_RAMDISK virtual disk in RAM
1409 */
1410 UINT WINAPI GetDriveTypeW(LPCWSTR root) /* [in] String describing drive */
1411 {
1412 FILE_FS_DEVICE_INFORMATION info;
1413 IO_STATUS_BLOCK io;
1414 NTSTATUS status;
1415 HANDLE handle;
1416 UINT ret;
1417
1418 if (!open_device_root( root, &handle )) return DRIVE_NO_ROOT_DIR;
1419
1420 status = NtQueryVolumeInformationFile( handle, &io, &info, sizeof(info), FileFsDeviceInformation );
1421 NtClose( handle );
1422 if (status != STATUS_SUCCESS)
1423 {
1424 SetLastError( RtlNtStatusToDosError(status) );
1425 ret = DRIVE_UNKNOWN;
1426 }
1427 else if ((ret = get_registry_drive_type( root )) == DRIVE_UNKNOWN)
1428 {
1429 switch (info.DeviceType)
1430 {
1431 case FILE_DEVICE_CD_ROM_FILE_SYSTEM: ret = DRIVE_CDROM; break;
1432 case FILE_DEVICE_VIRTUAL_DISK: ret = DRIVE_RAMDISK; break;
1433 case FILE_DEVICE_NETWORK_FILE_SYSTEM: ret = DRIVE_REMOTE; break;
1434 case FILE_DEVICE_DISK_FILE_SYSTEM:
1435 if (info.Characteristics & FILE_REMOTE_DEVICE) ret = DRIVE_REMOTE;
1436 else if (info.Characteristics & FILE_REMOVABLE_MEDIA) ret = DRIVE_REMOVABLE;
1437 else ret = DRIVE_FIXED;
1438 break;
1439 default:
1440 ret = DRIVE_UNKNOWN;
1441 break;
1442 }
1443 }
1444 TRACE( "%s -> %d\n", debugstr_w(root), ret );
1445 return ret;
1446 }
1447
1448
1449 /***********************************************************************
1450 * GetDriveTypeA (KERNEL32.@)
1451 */
1452 UINT WINAPI GetDriveTypeA( LPCSTR root )
1453 {
1454 WCHAR *rootW = NULL;
1455
1456 if (root && !(rootW = FILE_name_AtoW( root, FALSE ))) return DRIVE_NO_ROOT_DIR;
1457 return GetDriveTypeW( rootW );
1458 }
1459
1460
1461 /***********************************************************************
1462 * GetDiskFreeSpaceExW (KERNEL32.@)
1463 *
1464 * This function is used to acquire the size of the available and
1465 * total space on a logical volume.
1466 *
1467 * RETURNS
1468 *
1469 * Zero on failure, nonzero upon success. Use GetLastError to obtain
1470 * detailed error information.
1471 *
1472 */
1473 BOOL WINAPI GetDiskFreeSpaceExW( LPCWSTR root, PULARGE_INTEGER avail,
1474 PULARGE_INTEGER total, PULARGE_INTEGER totalfree )
1475 {
1476 FILE_FS_SIZE_INFORMATION info;
1477 IO_STATUS_BLOCK io;
1478 NTSTATUS status;
1479 HANDLE handle;
1480 UINT units;
1481
1482 TRACE( "%s,%p,%p,%p\n", debugstr_w(root), avail, total, totalfree );
1483
1484 if (!open_device_root( root, &handle )) return FALSE;
1485
1486 status = NtQueryVolumeInformationFile( handle, &io, &info, sizeof(info), FileFsSizeInformation );
1487 NtClose( handle );
1488 if (status != STATUS_SUCCESS)
1489 {
1490 SetLastError( RtlNtStatusToDosError(status) );
1491 return FALSE;
1492 }
1493
1494 units = info.SectorsPerAllocationUnit * info.BytesPerSector;
1495 if (total) total->QuadPart = info.TotalAllocationUnits.QuadPart * units;
1496 if (totalfree) totalfree->QuadPart = info.AvailableAllocationUnits.QuadPart * units;
1497 /* FIXME: this one should take quotas into account */
1498 if (avail) avail->QuadPart = info.AvailableAllocationUnits.QuadPart * units;
1499 return TRUE;
1500 }
1501
1502
1503 /***********************************************************************
1504 * GetDiskFreeSpaceExA (KERNEL32.@)
1505 */
1506 BOOL WINAPI GetDiskFreeSpaceExA( LPCSTR root, PULARGE_INTEGER avail,
1507 PULARGE_INTEGER total, PULARGE_INTEGER totalfree )
1508 {
1509 WCHAR *rootW = NULL;
1510
1511 if (root && !(rootW = FILE_name_AtoW( root, FALSE ))) return FALSE;
1512 return GetDiskFreeSpaceExW( rootW, avail, total, totalfree );
1513 }
1514
1515
1516 /***********************************************************************
1517 * GetDiskFreeSpaceW (KERNEL32.@)
1518 */
1519 BOOL WINAPI GetDiskFreeSpaceW( LPCWSTR root, LPDWORD cluster_sectors,
1520 LPDWORD sector_bytes, LPDWORD free_clusters,
1521 LPDWORD total_clusters )
1522 {
1523 FILE_FS_SIZE_INFORMATION info;
1524 IO_STATUS_BLOCK io;
1525 NTSTATUS status;
1526 HANDLE handle;
1527 UINT units;
1528
1529 TRACE( "%s,%p,%p,%p,%p\n", debugstr_w(root),
1530 cluster_sectors, sector_bytes, free_clusters, total_clusters );
1531
1532 if (!open_device_root( root, &handle )) return FALSE;
1533
1534 status = NtQueryVolumeInformationFile( handle, &io, &info, sizeof(info), FileFsSizeInformation );
1535 NtClose( handle );
1536 if (status != STATUS_SUCCESS)
1537 {
1538 SetLastError( RtlNtStatusToDosError(status) );
1539 return FALSE;
1540 }
1541
1542 units = info.SectorsPerAllocationUnit * info.BytesPerSector;
1543
1544 /* cap the size and available at 2GB as per specs */
1545 if (info.AvailableAllocationUnits.QuadPart * units > 0x7fffffff)
1546 info.AvailableAllocationUnits.QuadPart = 0x7fffffff / units;
1547 if (info.TotalAllocationUnits.QuadPart * units > 0x7fffffff)
1548 info.TotalAllocationUnits.QuadPart = 0x7fffffff / units;
1549
1550 if (cluster_sectors) *cluster_sectors = info.SectorsPerAllocationUnit;
1551 if (sector_bytes) *sector_bytes = info.BytesPerSector;
1552 if (free_clusters) *free_clusters = info.AvailableAllocationUnits.u.LowPart;
1553 if (total_clusters) *total_clusters = info.TotalAllocationUnits.u.LowPart;
1554 return TRUE;
1555 }
1556
1557
1558 /***********************************************************************
1559 * GetDiskFreeSpaceA (KERNEL32.@)
1560 */
1561 BOOL WINAPI GetDiskFreeSpaceA( LPCSTR root, LPDWORD cluster_sectors,
1562 LPDWORD sector_bytes, LPDWORD free_clusters,
1563 LPDWORD total_clusters )
1564 {
1565 WCHAR *rootW = NULL;
1566
1567 if (root && !(rootW = FILE_name_AtoW( root, FALSE ))) return FALSE;
1568 return GetDiskFreeSpaceW( rootW, cluster_sectors, sector_bytes, free_clusters, total_clusters );
1569 }
Windows API implementation