?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
dinput: Ignore EV_MSC events instead of printing fixme.
[wine/multimedia.git] / dlls / ntdll / directory.c
blob66572da319c9a3d8c4bf702f04ff189bbc696ee3
1 /*
2 * NTDLL directory functions
3 *
4 * Copyright 1993 Erik Bos
5 * Copyright 2003 Eric Pouech
6 * Copyright 1996, 2004 Alexandre Julliard
7 *
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
12 *
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
21 */
22
23 #include "config.h"
24 #include "wine/port.h"
25
26 #include <assert.h>
27 #include <sys/types.h>
28 #ifdef HAVE_DIRENT_H
29 # include <dirent.h>
30 #endif
31 #include <errno.h>
32 #include <fcntl.h>
33 #include <stdarg.h>
34 #include <string.h>
35 #include <stdlib.h>
36 #include <stdio.h>
37 #include <limits.h>
38 #ifdef HAVE_MNTENT_H
39 #include <mntent.h>
40 #endif
41 #ifdef HAVE_SYS_STAT_H
42 # include <sys/stat.h>
43 #endif
44 #ifdef HAVE_SYS_SYSCALL_H
45 # include <sys/syscall.h>
46 #endif
47 #ifdef HAVE_SYS_ATTR_H
48 #include <sys/attr.h>
49 #endif
50 #ifdef HAVE_SYS_IOCTL_H
51 #include <sys/ioctl.h>
52 #endif
53 #ifdef HAVE_LINUX_IOCTL_H
54 #include <linux/ioctl.h>
55 #endif
56 #ifdef HAVE_LINUX_MAJOR_H
57 # include <linux/major.h>
58 #endif
59 #ifdef HAVE_SYS_PARAM_H
60 #include <sys/param.h>
61 #endif
62 #ifdef HAVE_SYS_MOUNT_H
63 #include <sys/mount.h>
64 #endif
65 #ifdef HAVE_SYS_STATFS_H
66 #include <sys/statfs.h>
67 #endif
68 #include <time.h>
69 #ifdef HAVE_UNISTD_H
70 # include <unistd.h>
71 #endif
72
73 #define NONAMELESSUNION
74 #define NONAMELESSSTRUCT
75 #include "ntstatus.h"
76 #define WIN32_NO_STATUS
77 #include "windef.h"
78 #include "winnt.h"
79 #include "winternl.h"
80 #include "ntdll_misc.h"
81 #include "wine/unicode.h"
82 #include "wine/server.h"
83 #include "wine/list.h"
84 #include "wine/library.h"
85 #include "wine/debug.h"
86
87 WINE_DEFAULT_DEBUG_CHANNEL(file);
88
89 /* just in case... */
90 #undef VFAT_IOCTL_READDIR_BOTH
91 #undef USE_GETDENTS
92
93 #ifdef linux
94
95 /* We want the real kernel dirent structure, not the libc one */
96 typedef struct
97 {
98 long d_ino;
99 long d_off;
100 unsigned short d_reclen;
101 char d_name[256];
102 } KERNEL_DIRENT;
103
104 /* Define the VFAT ioctl to get both short and long file names */
105 #define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, KERNEL_DIRENT [2] )
106
107 #ifndef O_DIRECTORY
108 # define O_DIRECTORY 0200000 /* must be directory */
109 #endif
110
111 #ifdef SYS_getdents64
112 typedef struct
113 {
114 ULONG64 d_ino;
115 LONG64 d_off;
116 unsigned short d_reclen;
117 unsigned char d_type;
118 char d_name[256];
119 } KERNEL_DIRENT64;
120
121 static inline int getdents64( int fd, char *de, unsigned int size )
122 {
123 return syscall( SYS_getdents64, fd, de, size );
124 }
125 #define USE_GETDENTS
126 #endif
127
128 #endif /* linux */
129
130 #define IS_OPTION_TRUE(ch) ((ch) == 'y' || (ch) == 'Y' || (ch) == 't' || (ch) == 'T' || (ch) == '1')
131 #define IS_SEPARATOR(ch) ((ch) == '\\' || (ch) == '/')
132
133 #define INVALID_NT_CHARS '*','?','<','>','|','"'
134 #define INVALID_DOS_CHARS INVALID_NT_CHARS,'+','=',',',';','[',']',' ','\345'
135
136 #define MAX_DIR_ENTRY_LEN 255 /* max length of a directory entry in chars */
137
138 #define MAX_IGNORED_FILES 4
139
140 struct file_identity
141 {
142 dev_t dev;
143 ino_t ino;
144 };
145
146 static struct file_identity ignored_files[MAX_IGNORED_FILES];
147 static int ignored_files_count;
148
149 union file_directory_info
150 {
151 ULONG next;
152 FILE_DIRECTORY_INFORMATION dir;
153 FILE_BOTH_DIRECTORY_INFORMATION both;
154 FILE_FULL_DIRECTORY_INFORMATION full;
155 FILE_ID_BOTH_DIRECTORY_INFORMATION id_both;
156 FILE_ID_FULL_DIRECTORY_INFORMATION id_full;
157 };
158
159 static int show_dot_files = -1;
160
161 /* at some point we may want to allow Winelib apps to set this */
162 static const int is_case_sensitive = FALSE;
163
164 UNICODE_STRING windows_dir = { 0, 0, NULL }; /* windows directory */
165 UNICODE_STRING system_dir = { 0, 0, NULL }; /* system directory */
166
167 static struct file_identity curdir;
168 static struct file_identity windir;
169
170 static RTL_CRITICAL_SECTION dir_section;
171 static RTL_CRITICAL_SECTION_DEBUG critsect_debug =
172 {
173 0, 0, &dir_section,
174 { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
175 0, 0, { (DWORD_PTR)(__FILE__ ": dir_section") }
176 };
177 static RTL_CRITICAL_SECTION dir_section = { &critsect_debug, -1, 0, 0, 0, 0 };
178
179
180 /* check if a given Unicode char is OK in a DOS short name */
181 static inline BOOL is_invalid_dos_char( WCHAR ch )
182 {
183 static const WCHAR invalid_chars[] = { INVALID_DOS_CHARS,'~','.',0 };
184 if (ch > 0x7f) return TRUE;
185 return strchrW( invalid_chars, ch ) != NULL;
186 }
187
188 /* check if the device can be a mounted volume */
189 static inline int is_valid_mounted_device( const struct stat *st )
190 {
191 #if defined(linux) || defined(__sun__)
192 return S_ISBLK( st->st_mode );
193 #else
194 /* disks are char devices on *BSD */
195 return S_ISCHR( st->st_mode );
196 #endif
197 }
198
199 static inline void ignore_file( const char *name )
200 {
201 struct stat st;
202 assert( ignored_files_count < MAX_IGNORED_FILES );
203 if (!stat( name, &st ))
204 {
205 ignored_files[ignored_files_count].dev = st.st_dev;
206 ignored_files[ignored_files_count].ino = st.st_ino;
207 ignored_files_count++;
208 }
209 }
210
211 static inline BOOL is_same_file( const struct file_identity *file, const struct stat *st )
212 {
213 return st->st_dev == file->dev && st->st_ino == file->ino;
214 }
215
216 static inline BOOL is_ignored_file( const struct stat *st )
217 {
218 unsigned int i;
219
220 for (i = 0; i < ignored_files_count; i++)
221 if (is_same_file( &ignored_files[i], st )) return TRUE;
222 return FALSE;
223 }
224
225 static inline unsigned int dir_info_size( FILE_INFORMATION_CLASS class, unsigned int len )
226 {
227 switch (class)
228 {
229 case FileDirectoryInformation:
230 return (FIELD_OFFSET( FILE_DIRECTORY_INFORMATION, FileName[len] ) + 3) & ~3;
231 case FileBothDirectoryInformation:
232 return (FIELD_OFFSET( FILE_BOTH_DIRECTORY_INFORMATION, FileName[len] ) + 3) & ~3;
233 case FileFullDirectoryInformation:
234 return (FIELD_OFFSET( FILE_FULL_DIRECTORY_INFORMATION, FileName[len] ) + 3) & ~3;
235 case FileIdBothDirectoryInformation:
236 return (FIELD_OFFSET( FILE_ID_BOTH_DIRECTORY_INFORMATION, FileName[len] ) + 3) & ~3;
237 case FileIdFullDirectoryInformation:
238 return (FIELD_OFFSET( FILE_ID_FULL_DIRECTORY_INFORMATION, FileName[len] ) + 3) & ~3;
239 default:
240 assert(0);
241 return 0;
242 }
243 }
244
245 static inline unsigned int max_dir_info_size( FILE_INFORMATION_CLASS class )
246 {
247 return dir_info_size( class, MAX_DIR_ENTRY_LEN );
248 }
249
250
251 /* support for a directory queue for filesystem searches */
252
253 struct dir_name
254 {
255 struct list entry;
256 char name[1];
257 };
258
259 static struct list dir_queue = LIST_INIT( dir_queue );
260
261 static NTSTATUS add_dir_to_queue( const char *name )
262 {
263 int len = strlen( name ) + 1;
264 struct dir_name *dir = RtlAllocateHeap( GetProcessHeap(), 0,
265 FIELD_OFFSET( struct dir_name, name[len] ));
266 if (!dir) return STATUS_NO_MEMORY;
267 strcpy( dir->name, name );
268 list_add_tail( &dir_queue, &dir->entry );
269 return STATUS_SUCCESS;
270 }
271
272 static NTSTATUS next_dir_in_queue( char *name )
273 {
274 struct list *head = list_head( &dir_queue );
275 if (head)
276 {
277 struct dir_name *dir = LIST_ENTRY( head, struct dir_name, entry );
278 strcpy( name, dir->name );
279 list_remove( &dir->entry );
280 RtlFreeHeap( GetProcessHeap(), 0, dir );
281 return STATUS_SUCCESS;
282 }
283 return STATUS_OBJECT_NAME_NOT_FOUND;
284 }
285
286 static void flush_dir_queue(void)
287 {
288 struct list *head;
289
290 while ((head = list_head( &dir_queue )))
291 {
292 struct dir_name *dir = LIST_ENTRY( head, struct dir_name, entry );
293 list_remove( &dir->entry );
294 RtlFreeHeap( GetProcessHeap(), 0, dir );
295 }
296 }
297
298
299 /***********************************************************************
300 * get_default_com_device
301 *
302 * Return the default device to use for serial ports.
303 */
304 static char *get_default_com_device( int num )
305 {
306 char *ret = NULL;
307
308 if (!num || num > 9) return ret;
309 #ifdef linux
310 ret = RtlAllocateHeap( GetProcessHeap(), 0, sizeof("/dev/ttyS0") );
311 if (ret)
312 {
313 strcpy( ret, "/dev/ttyS0" );
314 ret[strlen(ret) - 1] = '0' + num - 1;
315 }
316 #elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
317 ret = RtlAllocateHeap( GetProcessHeap(), 0, sizeof("/dev/cuad0") );
318 if (ret)
319 {
320 strcpy( ret, "/dev/cuad0" );
321 ret[strlen(ret) - 1] = '0' + num - 1;
322 }
323 #else
324 FIXME( "no known default for device com%d\n", num );
325 #endif
326 return ret;
327 }
328
329
330 /***********************************************************************
331 * get_default_lpt_device
332 *
333 * Return the default device to use for parallel ports.
334 */
335 static char *get_default_lpt_device( int num )
336 {
337 char *ret = NULL;
338
339 if (!num || num > 9) return ret;
340 #ifdef linux
341 ret = RtlAllocateHeap( GetProcessHeap(), 0, sizeof("/dev/lp0") );
342 if (ret)
343 {
344 strcpy( ret, "/dev/lp0" );
345 ret[strlen(ret) - 1] = '0' + num - 1;
346 }
347 #else
348 FIXME( "no known default for device lpt%d\n", num );
349 #endif
350 return ret;
351 }
352
353
354 /***********************************************************************
355 * DIR_get_drives_info
356 *
357 * Retrieve device/inode number for all the drives. Helper for find_drive_root.
358 */
359 unsigned int DIR_get_drives_info( struct drive_info info[MAX_DOS_DRIVES] )
360 {
361 static struct drive_info cache[MAX_DOS_DRIVES];
362 static time_t last_update;
363 static unsigned int nb_drives;
364 unsigned int ret;
365 time_t now = time(NULL);
366
367 RtlEnterCriticalSection( &dir_section );
368 if (now != last_update)
369 {
370 const char *config_dir = wine_get_config_dir();
371 char *buffer, *p;
372 struct stat st;
373 unsigned int i;
374
375 if ((buffer = RtlAllocateHeap( GetProcessHeap(), 0,
376 strlen(config_dir) + sizeof("/dosdevices/a:") )))
377 {
378 strcpy( buffer, config_dir );
379 strcat( buffer, "/dosdevices/a:" );
380 p = buffer + strlen(buffer) - 2;
381
382 for (i = nb_drives = 0; i < MAX_DOS_DRIVES; i++)
383 {
384 *p = 'a' + i;
385 if (!stat( buffer, &st ))
386 {
387 cache[i].dev = st.st_dev;
388 cache[i].ino = st.st_ino;
389 nb_drives++;
390 }
391 else
392 {
393 cache[i].dev = 0;
394 cache[i].ino = 0;
395 }
396 }
397 RtlFreeHeap( GetProcessHeap(), 0, buffer );
398 }
399 last_update = now;
400 }
401 memcpy( info, cache, sizeof(cache) );
402 ret = nb_drives;
403 RtlLeaveCriticalSection( &dir_section );
404 return ret;
405 }
406
407
408 /***********************************************************************
409 * parse_mount_entries
410 *
411 * Parse mount entries looking for a given device. Helper for get_default_drive_device.
412 */
413
414 #ifdef sun
415 #include <sys/vfstab.h>
416 static char *parse_vfstab_entries( FILE *f, dev_t dev, ino_t ino)
417 {
418 struct vfstab entry;
419 struct stat st;
420 char *device;
421
422 while (! getvfsent( f, &entry ))
423 {
424 /* don't even bother stat'ing network mounts, there's no meaningful device anyway */
425 if (!strcmp( entry.vfs_fstype, "nfs" ) ||
426 !strcmp( entry.vfs_fstype, "smbfs" ) ||
427 !strcmp( entry.vfs_fstype, "ncpfs" )) continue;
428
429 if (stat( entry.vfs_mountp, &st ) == -1) continue;
430 if (st.st_dev != dev || st.st_ino != ino) continue;
431 if (!strcmp( entry.vfs_fstype, "fd" ))
432 {
433 if ((device = strstr( entry.vfs_mntopts, "dev=" )))
434 {
435 char *p = strchr( device + 4, ',' );
436 if (p) *p = 0;
437 return device + 4;
438 }
439 }
440 else
441 return entry.vfs_special;
442 }
443 return NULL;
444 }
445 #endif
446
447 #ifdef linux
448 static char *parse_mount_entries( FILE *f, dev_t dev, ino_t ino )
449 {
450 struct mntent *entry;
451 struct stat st;
452 char *device;
453
454 while ((entry = getmntent( f )))
455 {
456 /* don't even bother stat'ing network mounts, there's no meaningful device anyway */
457 if (!strcmp( entry->mnt_type, "nfs" ) ||
458 !strcmp( entry->mnt_type, "smbfs" ) ||
459 !strcmp( entry->mnt_type, "ncpfs" )) continue;
460
461 if (stat( entry->mnt_dir, &st ) == -1) continue;
462 if (st.st_dev != dev || st.st_ino != ino) continue;
463 if (!strcmp( entry->mnt_type, "supermount" ))
464 {
465 if ((device = strstr( entry->mnt_opts, "dev=" )))
466 {
467 char *p = strchr( device + 4, ',' );
468 if (p) *p = 0;
469 return device + 4;
470 }
471 }
472 else if (!stat( entry->mnt_fsname, &st ) && S_ISREG(st.st_mode))
473 {
474 /* if device is a regular file check for a loop mount */
475 if ((device = strstr( entry->mnt_opts, "loop=" )))
476 {
477 char *p = strchr( device + 5, ',' );
478 if (p) *p = 0;
479 return device + 5;
480 }
481 }
482 else
483 return entry->mnt_fsname;
484 }
485 return NULL;
486 }
487 #endif
488
489 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
490 #include <fstab.h>
491 static char *parse_mount_entries( FILE *f, dev_t dev, ino_t ino )
492 {
493 struct fstab *entry;
494 struct stat st;
495
496 while ((entry = getfsent()))
497 {
498 /* don't even bother stat'ing network mounts, there's no meaningful device anyway */
499 if (!strcmp( entry->fs_vfstype, "nfs" ) ||
500 !strcmp( entry->fs_vfstype, "smbfs" ) ||
501 !strcmp( entry->fs_vfstype, "ncpfs" )) continue;
502
503 if (stat( entry->fs_file, &st ) == -1) continue;
504 if (st.st_dev != dev || st.st_ino != ino) continue;
505 return entry->fs_spec;
506 }
507 return NULL;
508 }
509 #endif
510
511 #ifdef sun
512 #include <sys/mnttab.h>
513 static char *parse_mount_entries( FILE *f, dev_t dev, ino_t ino )
514 {
515 struct mnttab entry;
516 struct stat st;
517 char *device;
518
519
520 while (( ! getmntent( f, &entry) ))
521 {
522 /* don't even bother stat'ing network mounts, there's no meaningful device anyway */
523 if (!strcmp( entry.mnt_fstype, "nfs" ) ||
524 !strcmp( entry.mnt_fstype, "smbfs" ) ||
525 !strcmp( entry.mnt_fstype, "ncpfs" )) continue;
526
527 if (stat( entry.mnt_mountp, &st ) == -1) continue;
528 if (st.st_dev != dev || st.st_ino != ino) continue;
529 if (!strcmp( entry.mnt_fstype, "fd" ))
530 {
531 if ((device = strstr( entry.mnt_mntopts, "dev=" )))
532 {
533 char *p = strchr( device + 4, ',' );
534 if (p) *p = 0;
535 return device + 4;
536 }
537 }
538 else
539 return entry.mnt_special;
540 }
541 return NULL;
542 }
543 #endif
544
545 /***********************************************************************
546 * get_default_drive_device
547 *
548 * Return the default device to use for a given drive mount point.
549 */
550 static char *get_default_drive_device( const char *root )
551 {
552 char *ret = NULL;
553
554 #ifdef linux
555 FILE *f;
556 char *device = NULL;
557 int fd, res = -1;
558 struct stat st;
559
560 /* try to open it first to force it to get mounted */
561 if ((fd = open( root, O_RDONLY | O_DIRECTORY )) != -1)
562 {
563 res = fstat( fd, &st );
564 close( fd );
565 }
566 /* now try normal stat just in case */
567 if (res == -1) res = stat( root, &st );
568 if (res == -1) return NULL;
569
570 RtlEnterCriticalSection( &dir_section );
571
572 if ((f = fopen( "/etc/mtab", "r" )))
573 {
574 device = parse_mount_entries( f, st.st_dev, st.st_ino );
575 endmntent( f );
576 }
577 /* look through fstab too in case it's not mounted (for instance if it's an audio CD) */
578 if (!device && (f = fopen( "/etc/fstab", "r" )))
579 {
580 device = parse_mount_entries( f, st.st_dev, st.st_ino );
581 endmntent( f );
582 }
583 if (device)
584 {
585 ret = RtlAllocateHeap( GetProcessHeap(), 0, strlen(device) + 1 );
586 if (ret) strcpy( ret, device );
587 }
588 RtlLeaveCriticalSection( &dir_section );
589
590 #elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__ )
591 char *device = NULL;
592 int fd, res = -1;
593 struct stat st;
594
595 /* try to open it first to force it to get mounted */
596 if ((fd = open( root, O_RDONLY )) != -1)
597 {
598 res = fstat( fd, &st );
599 close( fd );
600 }
601 /* now try normal stat just in case */
602 if (res == -1) res = stat( root, &st );
603 if (res == -1) return NULL;
604
605 RtlEnterCriticalSection( &dir_section );
606
607 /* The FreeBSD parse_mount_entries doesn't require a file argument, so just
608 * pass NULL. Leave the argument in for symmetry.
609 */
610 device = parse_mount_entries( NULL, st.st_dev, st.st_ino );
611 if (device)
612 {
613 ret = RtlAllocateHeap( GetProcessHeap(), 0, strlen(device) + 1 );
614 if (ret) strcpy( ret, device );
615 }
616 RtlLeaveCriticalSection( &dir_section );
617
618 #elif defined( sun )
619 FILE *f;
620 char *device = NULL;
621 int fd, res = -1;
622 struct stat st;
623
624 /* try to open it first to force it to get mounted */
625 if ((fd = open( root, O_RDONLY )) != -1)
626 {
627 res = fstat( fd, &st );
628 close( fd );
629 }
630 /* now try normal stat just in case */
631 if (res == -1) res = stat( root, &st );
632 if (res == -1) return NULL;
633
634 RtlEnterCriticalSection( &dir_section );
635
636 if ((f = fopen( "/etc/mnttab", "r" )))
637 {
638 device = parse_mount_entries( f, st.st_dev, st.st_ino);
639 fclose( f );
640 }
641 /* look through fstab too in case it's not mounted (for instance if it's an audio CD) */
642 if (!device && (f = fopen( "/etc/vfstab", "r" )))
643 {
644 device = parse_vfstab_entries( f, st.st_dev, st.st_ino );
645 fclose( f );
646 }
647 if (device)
648 {
649 ret = RtlAllocateHeap( GetProcessHeap(), 0, strlen(device) + 1 );
650 if (ret) strcpy( ret, device );
651 }
652 RtlLeaveCriticalSection( &dir_section );
653
654 #elif defined(__APPLE__)
655 struct statfs *mntStat;
656 struct stat st;
657 int i;
658 int mntSize;
659 dev_t dev;
660 ino_t ino;
661 static const char path_bsd_device[] = "/dev/disk";
662 int res;
663
664 res = stat( root, &st );
665 if (res == -1) return NULL;
666
667 dev = st.st_dev;
668 ino = st.st_ino;
669
670 RtlEnterCriticalSection( &dir_section );
671
672 mntSize = getmntinfo(&mntStat, MNT_NOWAIT);
673
674 for (i = 0; i < mntSize && !ret; i++)
675 {
676 if (stat(mntStat[i].f_mntonname, &st ) == -1) continue;
677 if (st.st_dev != dev || st.st_ino != ino) continue;
678
679 /* FIXME add support for mounted network drive */
680 if ( strncmp(mntStat[i].f_mntfromname, path_bsd_device, strlen(path_bsd_device)) == 0)
681 {
682 /* set return value to the corresponding raw BSD node */
683 ret = RtlAllocateHeap( GetProcessHeap(), 0, strlen(mntStat[i].f_mntfromname) + 2 /* 2 : r and \0 */ );
684 if (ret)
685 {
686 strcpy(ret, "/dev/r");
687 strcat(ret, mntStat[i].f_mntfromname+sizeof("/dev/")-1);
688 }
689 }
690 }
691 RtlLeaveCriticalSection( &dir_section );
692 #else
693 static int warned;
694 if (!warned++) FIXME( "auto detection of DOS devices not supported on this platform\n" );
695 #endif
696 return ret;
697 }
698
699
700 /***********************************************************************
701 * get_device_mount_point
702 *
703 * Return the current mount point for a device.
704 */
705 static char *get_device_mount_point( dev_t dev )
706 {
707 char *ret = NULL;
708
709 #ifdef linux
710 FILE *f;
711
712 RtlEnterCriticalSection( &dir_section );
713
714 if ((f = fopen( "/etc/mtab", "r" )))
715 {
716 struct mntent *entry;
717 struct stat st;
718 char *p, *device;
719
720 while ((entry = getmntent( f )))
721 {
722 /* don't even bother stat'ing network mounts, there's no meaningful device anyway */
723 if (!strcmp( entry->mnt_type, "nfs" ) ||
724 !strcmp( entry->mnt_type, "smbfs" ) ||
725 !strcmp( entry->mnt_type, "ncpfs" )) continue;
726
727 if (!strcmp( entry->mnt_type, "supermount" ))
728 {
729 if ((device = strstr( entry->mnt_opts, "dev=" )))
730 {
731 device += 4;
732 if ((p = strchr( device, ',' ))) *p = 0;
733 }
734 }
735 else if (!stat( entry->mnt_fsname, &st ) && S_ISREG(st.st_mode))
736 {
737 /* if device is a regular file check for a loop mount */
738 if ((device = strstr( entry->mnt_opts, "loop=" )))
739 {
740 device += 5;
741 if ((p = strchr( device, ',' ))) *p = 0;
742 }
743 }
744 else device = entry->mnt_fsname;
745
746 if (device && !stat( device, &st ) && S_ISBLK(st.st_mode) && st.st_rdev == dev)
747 {
748 ret = RtlAllocateHeap( GetProcessHeap(), 0, strlen(entry->mnt_dir) + 1 );
749 if (ret) strcpy( ret, entry->mnt_dir );
750 break;
751 }
752 }
753 endmntent( f );
754 }
755 RtlLeaveCriticalSection( &dir_section );
756 #elif defined(__APPLE__)
757 struct statfs *entry;
758 struct stat st;
759 int i, size;
760
761 RtlEnterCriticalSection( &dir_section );
762
763 size = getmntinfo( &entry, MNT_NOWAIT );
764 for (i = 0; i < size; i++)
765 {
766 if (stat( entry[i].f_mntfromname, &st ) == -1) continue;
767 if (S_ISBLK(st.st_mode) && st.st_rdev == dev)
768 {
769 ret = RtlAllocateHeap( GetProcessHeap(), 0, strlen(entry[i].f_mntfromname) + 1 );
770 if (ret) strcpy( ret, entry[i].f_mntfromname );
771 break;
772 }
773 }
774 RtlLeaveCriticalSection( &dir_section );
775 #else
776 static int warned;
777 if (!warned++) FIXME( "unmounting devices not supported on this platform\n" );
778 #endif
779 return ret;
780 }
781
782
783 #if defined(HAVE_GETATTRLIST) && defined(ATTR_VOL_CAPABILITIES) && \
784 defined(VOL_CAPABILITIES_FORMAT) && defined(VOL_CAP_FMT_CASE_SENSITIVE)
785
786 struct get_fsid
787 {
788 ULONG size;
789 dev_t dev;
790 fsid_t fsid;
791 };
792
793 struct fs_cache
794 {
795 dev_t dev;
796 fsid_t fsid;
797 BOOLEAN case_sensitive;
798 } fs_cache[64];
799
800 struct vol_caps
801 {
802 ULONG size;
803 vol_capabilities_attr_t caps;
804 };
805
806 /***********************************************************************
807 * look_up_fs_cache
808 *
809 * Checks if the specified file system is in the cache.
810 */
811 static struct fs_cache *look_up_fs_cache( dev_t dev )
812 {
813 int i;
814 for (i = 0; i < sizeof(fs_cache)/sizeof(fs_cache[0]); i++)
815 if (fs_cache[i].dev == dev)
816 return fs_cache+i;
817 return NULL;
818 }
819
820 /***********************************************************************
821 * add_fs_cache
822 *
823 * Adds the specified file system to the cache.
824 */
825 static void add_fs_cache( dev_t dev, fsid_t fsid, BOOLEAN case_sensitive )
826 {
827 int i;
828 struct fs_cache *entry = look_up_fs_cache( dev );
829 static int once = 0;
830 if (entry)
831 {
832 /* Update the cache */
833 entry->fsid = fsid;
834 entry->case_sensitive = case_sensitive;
835 return;
836 }
837
838 /* Add a new entry */
839 for (i = 0; i < sizeof(fs_cache)/sizeof(fs_cache[0]); i++)
840 if (fs_cache[i].dev == 0)
841 {
842 /* This entry is empty, use it */
843 fs_cache[i].dev = dev;
844 fs_cache[i].fsid = fsid;
845 fs_cache[i].case_sensitive = case_sensitive;
846 return;
847 }
848
849 /* Cache is out of space, warn */
850 if (!once++)
851 WARN( "FS cache is out of space, expect performance problems\n" );
852 }
853
854 /***********************************************************************
855 * get_dir_case_sensitivity_attr
856 *
857 * Checks if the volume containing the specified directory is case
858 * sensitive or not. Uses getattrlist(2).
859 */
860 static int get_dir_case_sensitivity_attr( const char *dir )
861 {
862 char *mntpoint = NULL;
863 struct attrlist attr;
864 struct vol_caps caps;
865 struct get_fsid get_fsid;
866 struct fs_cache *entry;
867
868 /* First get the FS ID of the volume */
869 attr.bitmapcount = ATTR_BIT_MAP_COUNT;
870 attr.reserved = 0;
871 attr.commonattr = ATTR_CMN_DEVID|ATTR_CMN_FSID;
872 attr.volattr = attr.dirattr = attr.fileattr = attr.forkattr = 0;
873 get_fsid.size = 0;
874 if (getattrlist( dir, &attr, &get_fsid, sizeof(get_fsid), 0 ) != 0 ||
875 get_fsid.size != sizeof(get_fsid))
876 return -1;
877 /* Try to look it up in the cache */
878 entry = look_up_fs_cache( get_fsid.dev );
879 if (entry && !memcmp( &entry->fsid, &get_fsid.fsid, sizeof(fsid_t) ))
880 /* Cache lookup succeeded */
881 return entry->case_sensitive;
882 /* Cache is stale at this point, we have to update it */
883
884 mntpoint = get_device_mount_point( get_fsid.dev );
885 /* Now look up the case-sensitivity */
886 attr.commonattr = 0;
887 attr.volattr = ATTR_VOL_INFO|ATTR_VOL_CAPABILITIES;
888 if (getattrlist( mntpoint, &attr, &caps, sizeof(caps), 0 ) < 0)
889 {
890 RtlFreeHeap( GetProcessHeap(), 0, mntpoint );
891 add_fs_cache( get_fsid.dev, get_fsid.fsid, TRUE );
892 return TRUE;
893 }
894 RtlFreeHeap( GetProcessHeap(), 0, mntpoint );
895 if (caps.size == sizeof(caps) &&
896 (caps.caps.valid[VOL_CAPABILITIES_FORMAT] &
897 (VOL_CAP_FMT_CASE_SENSITIVE | VOL_CAP_FMT_CASE_PRESERVING)) ==
898 (VOL_CAP_FMT_CASE_SENSITIVE | VOL_CAP_FMT_CASE_PRESERVING))
899 {
900 BOOLEAN ret;
901
902 if ((caps.caps.capabilities[VOL_CAPABILITIES_FORMAT] &
903 VOL_CAP_FMT_CASE_SENSITIVE) != VOL_CAP_FMT_CASE_SENSITIVE)
904 ret = FALSE;
905 else
906 ret = TRUE;
907 /* Update the cache */
908 add_fs_cache( get_fsid.dev, get_fsid.fsid, ret );
909 return ret;
910 }
911 return FALSE;
912 }
913 #endif
914
915 /***********************************************************************
916 * get_dir_case_sensitivity_stat
917 *
918 * Checks if the volume containing the specified directory is case
919 * sensitive or not. Uses statfs(2) or statvfs(2).
920 */
921 static BOOLEAN get_dir_case_sensitivity_stat( const char *dir )
922 {
923 #if defined(__APPLE__) || defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
924 struct statfs stfs;
925
926 statfs( dir, &stfs );
927 /* Assume these file systems are always case insensitive on Mac OS.
928 * For FreeBSD, only assume CIOPFS is case insensitive (AFAIK, Mac OS
929 * is the only UNIX that supports case-insensitive lookup).
930 */
931 if (!strcmp( stfs.f_fstypename, "fusefs" ) &&
932 !strncmp( stfs.f_mntfromname, "ciopfs", 5 ))
933 return FALSE;
934 #ifdef __APPLE__
935 if (!strcmp( stfs.f_fstypename, "msdos" ) ||
936 !strcmp( stfs.f_fstypename, "cd9660" ) ||
937 !strcmp( stfs.f_fstypename, "udf" ) ||
938 !strcmp( stfs.f_fstypename, "ntfs" ) ||
939 !strcmp( stfs.f_fstypename, "smbfs" ))
940 return FALSE;
941 #ifdef _DARWIN_FEATURE_64_BIT_INODE
942 if (!strcmp( stfs.f_fstypename, "hfs" ) && (stfs.f_fssubtype == 0 ||
943 stfs.f_fssubtype == 1 ||
944 stfs.f_fssubtype == 128))
945 return FALSE;
946 #else
947 /* The field says "reserved", but a quick look at the kernel source
948 * tells us that this "reserved" field is really the same as the
949 * "fssubtype" field from the inode64 structure (see munge_statfs()
950 * in <xnu-source>/bsd/vfs/vfs_syscalls.c).
951 */
952 if (!strcmp( stfs.f_fstypename, "hfs" ) && (stfs.f_reserved1 == 0 ||
953 stfs.f_reserved1 == 1 ||
954 stfs.f_reserved1 == 128))
955 return FALSE;
956 #endif
957 #endif
958 return TRUE;
959
960 #elif defined(__NetBSD__)
961 struct statvfs stfs;
962
963 statvfs( dir, &stfs );
964 /* Only assume CIOPFS is case insensitive. */
965 if (strcmp( stfs.f_fstypename, "fusefs" ) ||
966 strncmp( stfs.f_mntfromname, "ciopfs", 5 ))
967 return TRUE;
968 return FALSE;
969
970 #elif defined(__linux__)
971 struct statfs stfs;
972 struct stat st;
973 char *cifile;
974
975 /* Only assume CIOPFS is case insensitive. */
976 statfs( dir, &stfs );
977 if (stfs.f_type != 0x65735546 /* FUSE_SUPER_MAGIC */)
978 return TRUE;
979 /* Normally, we'd have to parse the mtab to find out exactly what
980 * kind of FUSE FS this is. But, someone on wine-devel suggested
981 * a shortcut. We'll stat a special file in the directory. If it's
982 * there, we'll assume it's a CIOPFS, else not.
983 * This will break if somebody puts a file named ".ciopfs" in a non-
984 * CIOPFS directory.
985 */
986 cifile = RtlAllocateHeap( GetProcessHeap(), 0, strlen( dir )+sizeof("/.ciopfs") );
987 if (!cifile) return TRUE;
988 strcpy( cifile, dir );
989 strcat( cifile, "/.ciopfs" );
990 if (stat( cifile, &st ) == 0)
991 {
992 RtlFreeHeap( GetProcessHeap(), 0, cifile );
993 return FALSE;
994 }
995 RtlFreeHeap( GetProcessHeap(), 0, cifile );
996 return TRUE;
997 #else
998 return TRUE;
999 #endif
1000 }
1001
1002
1003 /***********************************************************************
1004 * get_dir_case_sensitivity
1005 *
1006 * Checks if the volume containing the specified directory is case
1007 * sensitive or not. Uses statfs(2) or statvfs(2).
1008 */
1009 static BOOLEAN get_dir_case_sensitivity( const char *dir )
1010 {
1011 #if defined(HAVE_GETATTRLIST) && defined(ATTR_VOL_CAPABILITIES) && \
1012 defined(VOL_CAPABILITIES_FORMAT) && defined(VOL_CAP_FMT_CASE_SENSITIVE)
1013 int case_sensitive = get_dir_case_sensitivity_attr( dir );
1014 if (case_sensitive != -1) return case_sensitive;
1015 #endif
1016 return get_dir_case_sensitivity_stat( dir );
1017 }
1018
1019
1020 /***********************************************************************
1021 * init_options
1022 *
1023 * Initialize the show_dot_files options.
1024 */
1025 static void init_options(void)
1026 {
1027 static const WCHAR WineW[] = {'S','o','f','t','w','a','r','e','\\','W','i','n','e',0};
1028 static const WCHAR ShowDotFilesW[] = {'S','h','o','w','D','o','t','F','i','l','e','s',0};
1029 char tmp[80];
1030 HANDLE root, hkey;
1031 DWORD dummy;
1032 OBJECT_ATTRIBUTES attr;
1033 UNICODE_STRING nameW;
1034
1035 show_dot_files = 0;
1036
1037 RtlOpenCurrentUser( KEY_ALL_ACCESS, &root );
1038 attr.Length = sizeof(attr);
1039 attr.RootDirectory = root;
1040 attr.ObjectName = &nameW;
1041 attr.Attributes = 0;
1042 attr.SecurityDescriptor = NULL;
1043 attr.SecurityQualityOfService = NULL;
1044 RtlInitUnicodeString( &nameW, WineW );
1045
1046 /* @@ Wine registry key: HKCU\Software\Wine */
1047 if (!NtOpenKey( &hkey, KEY_ALL_ACCESS, &attr ))
1048 {
1049 RtlInitUnicodeString( &nameW, ShowDotFilesW );
1050 if (!NtQueryValueKey( hkey, &nameW, KeyValuePartialInformation, tmp, sizeof(tmp), &dummy ))
1051 {
1052 WCHAR *str = (WCHAR *)((KEY_VALUE_PARTIAL_INFORMATION *)tmp)->Data;
1053 show_dot_files = IS_OPTION_TRUE( str[0] );
1054 }
1055 NtClose( hkey );
1056 }
1057 NtClose( root );
1058
1059 /* a couple of directories that we don't want to return in directory searches */
1060 ignore_file( wine_get_config_dir() );
1061 ignore_file( "/dev" );
1062 ignore_file( "/proc" );
1063 #ifdef linux
1064 ignore_file( "/sys" );
1065 #endif
1066 }
1067
1068
1069 /***********************************************************************
1070 * DIR_is_hidden_file
1071 *
1072 * Check if the specified file should be hidden based on its name and the show dot files option.
1073 */
1074 BOOL DIR_is_hidden_file( const UNICODE_STRING *name )
1075 {
1076 WCHAR *p, *end;
1077
1078 if (show_dot_files == -1) init_options();
1079 if (show_dot_files) return FALSE;
1080
1081 end = p = name->Buffer + name->Length/sizeof(WCHAR);
1082 while (p > name->Buffer && IS_SEPARATOR(p[-1])) p--;
1083 while (p > name->Buffer && !IS_SEPARATOR(p[-1])) p--;
1084 if (p == end || *p != '.') return FALSE;
1085 /* make sure it isn't '.' or '..' */
1086 if (p + 1 == end) return FALSE;
1087 if (p[1] == '.' && p + 2 == end) return FALSE;
1088 return TRUE;
1089 }
1090
1091
1092 /***********************************************************************
1093 * hash_short_file_name
1094 *
1095 * Transform a Unix file name into a hashed DOS name. If the name is a valid
1096 * DOS name, it is converted to upper-case; otherwise it is replaced by a
1097 * hashed version that fits in 8.3 format.
1098 * 'buffer' must be at least 12 characters long.
1099 * Returns length of short name in bytes; short name is NOT null-terminated.
1100 */
1101 static ULONG hash_short_file_name( const UNICODE_STRING *name, LPWSTR buffer )
1102 {
1103 static const char hash_chars[32] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ012345";
1104
1105 LPCWSTR p, ext, end = name->Buffer + name->Length / sizeof(WCHAR);
1106 LPWSTR dst;
1107 unsigned short hash;
1108 int i;
1109
1110 /* Compute the hash code of the file name */
1111 /* If you know something about hash functions, feel free to */
1112 /* insert a better algorithm here... */
1113 if (!is_case_sensitive)
1114 {
1115 for (p = name->Buffer, hash = 0xbeef; p < end - 1; p++)
1116 hash = (hash<<3) ^ (hash>>5) ^ tolowerW(*p) ^ (tolowerW(p[1]) << 8);
1117 hash = (hash<<3) ^ (hash>>5) ^ tolowerW(*p); /* Last character */
1118 }
1119 else
1120 {
1121 for (p = name->Buffer, hash = 0xbeef; p < end - 1; p++)
1122 hash = (hash << 3) ^ (hash >> 5) ^ *p ^ (p[1] << 8);
1123 hash = (hash << 3) ^ (hash >> 5) ^ *p; /* Last character */
1124 }
1125
1126 /* Find last dot for start of the extension */
1127 for (p = name->Buffer + 1, ext = NULL; p < end - 1; p++) if (*p == '.') ext = p;
1128
1129 /* Copy first 4 chars, replacing invalid chars with '_' */
1130 for (i = 4, p = name->Buffer, dst = buffer; i > 0; i--, p++)
1131 {
1132 if (p == end || p == ext) break;
1133 *dst++ = is_invalid_dos_char(*p) ? '_' : toupperW(*p);
1134 }
1135 /* Pad to 5 chars with '~' */
1136 while (i-- >= 0) *dst++ = '~';
1137
1138 /* Insert hash code converted to 3 ASCII chars */
1139 *dst++ = hash_chars[(hash >> 10) & 0x1f];
1140 *dst++ = hash_chars[(hash >> 5) & 0x1f];
1141 *dst++ = hash_chars[hash & 0x1f];
1142
1143 /* Copy the first 3 chars of the extension (if any) */
1144 if (ext)
1145 {
1146 *dst++ = '.';
1147 for (i = 3, ext++; (i > 0) && ext < end; i--, ext++)
1148 *dst++ = is_invalid_dos_char(*ext) ? '_' : toupperW(*ext);
1149 }
1150 return dst - buffer;
1151 }
1152
1153
1154 /***********************************************************************
1155 * match_filename
1156 *
1157 * Check a long file name against a mask.
1158 *
1159 * Tests (done in W95 DOS shell - case insensitive):
1160 * *.txt test1.test.txt *
1161 * *st1* test1.txt *
1162 * *.t??????.t* test1.ta.tornado.txt *
1163 * *tornado* test1.ta.tornado.txt *
1164 * t*t test1.ta.tornado.txt *
1165 * ?est* test1.txt *
1166 * ?est??? test1.txt -
1167 * *test1.txt* test1.txt *
1168 * h?l?o*t.dat hellothisisatest.dat *
1169 */
1170 static BOOLEAN match_filename( const UNICODE_STRING *name_str, const UNICODE_STRING *mask_str )
1171 {
1172 int mismatch;
1173 const WCHAR *name = name_str->Buffer;
1174 const WCHAR *mask = mask_str->Buffer;
1175 const WCHAR *name_end = name + name_str->Length / sizeof(WCHAR);
1176 const WCHAR *mask_end = mask + mask_str->Length / sizeof(WCHAR);
1177 const WCHAR *lastjoker = NULL;
1178 const WCHAR *next_to_retry = NULL;
1179
1180 TRACE("(%s, %s)\n", debugstr_us(name_str), debugstr_us(mask_str));
1181
1182 while (name < name_end && mask < mask_end)
1183 {
1184 switch(*mask)
1185 {
1186 case '*':
1187 mask++;
1188 while (mask < mask_end && *mask == '*') mask++; /* Skip consecutive '*' */
1189 if (mask == mask_end) return TRUE; /* end of mask is all '*', so match */
1190 lastjoker = mask;
1191
1192 /* skip to the next match after the joker(s) */
1193 if (is_case_sensitive)
1194 while (name < name_end && (*name != *mask)) name++;
1195 else
1196 while (name < name_end && (toupperW(*name) != toupperW(*mask))) name++;
1197 next_to_retry = name;
1198 break;
1199 case '?':
1200 mask++;
1201 name++;
1202 break;
1203 default:
1204 if (is_case_sensitive) mismatch = (*mask != *name);
1205 else mismatch = (toupperW(*mask) != toupperW(*name));
1206
1207 if (!mismatch)
1208 {
1209 mask++;
1210 name++;
1211 if (mask == mask_end)
1212 {
1213 if (name == name_end) return TRUE;
1214 if (lastjoker) mask = lastjoker;
1215 }
1216 }
1217 else /* mismatch ! */
1218 {
1219 if (lastjoker) /* we had an '*', so we can try unlimitedly */
1220 {
1221 mask = lastjoker;
1222
1223 /* this scan sequence was a mismatch, so restart
1224 * 1 char after the first char we checked last time */
1225 next_to_retry++;
1226 name = next_to_retry;
1227 }
1228 else return FALSE; /* bad luck */
1229 }
1230 break;
1231 }
1232 }
1233 while (mask < mask_end && ((*mask == '.') || (*mask == '*')))
1234 mask++; /* Ignore trailing '.' or '*' in mask */
1235 return (name == name_end && mask == mask_end);
1236 }
1237
1238
1239 /***********************************************************************
1240 * append_entry
1241 *
1242 * helper for NtQueryDirectoryFile
1243 */
1244 static union file_directory_info *append_entry( void *info_ptr, IO_STATUS_BLOCK *io, ULONG max_length,
1245 const char *long_name, const char *short_name,
1246 const UNICODE_STRING *mask, FILE_INFORMATION_CLASS class )
1247 {
1248 union file_directory_info *info;
1249 int i, long_len, short_len, total_len;
1250 struct stat st;
1251 WCHAR long_nameW[MAX_DIR_ENTRY_LEN];
1252 WCHAR short_nameW[12];
1253 WCHAR *filename;
1254 UNICODE_STRING str;
1255 ULONG attributes = 0;
1256
1257 io->u.Status = STATUS_SUCCESS;
1258 long_len = ntdll_umbstowcs( 0, long_name, strlen(long_name), long_nameW, MAX_DIR_ENTRY_LEN );
1259 if (long_len == -1) return NULL;
1260
1261 str.Buffer = long_nameW;
1262 str.Length = long_len * sizeof(WCHAR);
1263 str.MaximumLength = sizeof(long_nameW);
1264
1265 if (short_name)
1266 {
1267 short_len = ntdll_umbstowcs( 0, short_name, strlen(short_name),
1268 short_nameW, sizeof(short_nameW) / sizeof(WCHAR) );
1269 if (short_len == -1) short_len = sizeof(short_nameW) / sizeof(WCHAR);
1270 }
1271 else /* generate a short name if necessary */
1272 {
1273 BOOLEAN spaces;
1274
1275 short_len = 0;
1276 if (!RtlIsNameLegalDOS8Dot3( &str, NULL, &spaces ) || spaces)
1277 short_len = hash_short_file_name( &str, short_nameW );
1278 }
1279
1280 TRACE( "long %s short %s mask %s\n",
1281 debugstr_us(&str), debugstr_wn(short_nameW, short_len), debugstr_us(mask) );
1282
1283 if (mask && !match_filename( &str, mask ))
1284 {
1285 if (!short_len) return NULL; /* no short name to match */
1286 str.Buffer = short_nameW;
1287 str.Length = short_len * sizeof(WCHAR);
1288 str.MaximumLength = sizeof(short_nameW);
1289 if (!match_filename( &str, mask )) return NULL;
1290 }
1291
1292 if (lstat( long_name, &st ) == -1) return NULL;
1293 if (S_ISLNK( st.st_mode ))
1294 {
1295 if (stat( long_name, &st ) == -1) return NULL;
1296 if (S_ISDIR( st.st_mode )) attributes |= FILE_ATTRIBUTE_REPARSE_POINT;
1297 }
1298 if (is_ignored_file( &st ))
1299 {
1300 TRACE( "ignoring file %s\n", long_name );
1301 return NULL;
1302 }
1303 if (!show_dot_files && long_name[0] == '.' && long_name[1] && (long_name[1] != '.' || long_name[2]))
1304 attributes |= FILE_ATTRIBUTE_HIDDEN;
1305
1306 total_len = dir_info_size( class, long_len );
1307 if (io->Information + total_len > max_length)
1308 {
1309 total_len = max_length - io->Information;
1310 io->u.Status = STATUS_BUFFER_OVERFLOW;
1311 }
1312 info = (union file_directory_info *)((char *)info_ptr + io->Information);
1313 if (st.st_dev != curdir.dev) st.st_ino = 0; /* ignore inode if on a different device */
1314 /* all the structures start with a FileDirectoryInformation layout */
1315 fill_stat_info( &st, info, class );
1316 info->dir.NextEntryOffset = total_len;
1317 info->dir.FileIndex = 0; /* NTFS always has 0 here, so let's not bother with it */
1318 info->dir.FileAttributes |= attributes;
1319
1320 switch (class)
1321 {
1322 case FileDirectoryInformation:
1323 info->dir.FileNameLength = long_len * sizeof(WCHAR);
1324 filename = info->dir.FileName;
1325 break;
1326
1327 case FileFullDirectoryInformation:
1328 info->full.EaSize = 0; /* FIXME */
1329 info->full.FileNameLength = long_len * sizeof(WCHAR);
1330 filename = info->full.FileName;
1331 break;
1332
1333 case FileIdFullDirectoryInformation:
1334 info->id_full.EaSize = 0; /* FIXME */
1335 info->id_full.FileNameLength = long_len * sizeof(WCHAR);
1336 filename = info->id_full.FileName;
1337 break;
1338
1339 case FileBothDirectoryInformation:
1340 info->both.EaSize = 0; /* FIXME */
1341 info->both.ShortNameLength = short_len * sizeof(WCHAR);
1342 for (i = 0; i < short_len; i++) info->both.ShortName[i] = toupperW(short_nameW[i]);
1343 info->both.FileNameLength = long_len * sizeof(WCHAR);
1344 filename = info->both.FileName;
1345 break;
1346
1347 case FileIdBothDirectoryInformation:
1348 info->id_both.EaSize = 0; /* FIXME */
1349 info->id_both.ShortNameLength = short_len * sizeof(WCHAR);
1350 for (i = 0; i < short_len; i++) info->id_both.ShortName[i] = toupperW(short_nameW[i]);
1351 info->id_both.FileNameLength = long_len * sizeof(WCHAR);
1352 filename = info->id_both.FileName;
1353 break;
1354
1355 default:
1356 assert(0);
1357 return NULL;
1358 }
1359 memcpy( filename, long_nameW, total_len - ((char *)filename - (char *)info) );
1360 io->Information += total_len;
1361 return info;
1362 }
1363
1364
1365 #ifdef VFAT_IOCTL_READDIR_BOTH
1366
1367 /***********************************************************************
1368 * start_vfat_ioctl
1369 *
1370 * Wrapper for the VFAT ioctl to work around various kernel bugs.
1371 * dir_section must be held by caller.
1372 */
1373 static KERNEL_DIRENT *start_vfat_ioctl( int fd )
1374 {
1375 static KERNEL_DIRENT *de;
1376 int res;
1377
1378 if (!de)
1379 {
1380 const size_t page_size = getpagesize();
1381 SIZE_T size = 2 * sizeof(*de) + page_size;
1382 void *addr = NULL;
1383
1384 if (NtAllocateVirtualMemory( GetCurrentProcess(), &addr, 1, &size, MEM_RESERVE, PAGE_READWRITE ))
1385 return NULL;
1386 /* commit only the size needed for the dir entries */
1387 /* this leaves an extra unaccessible page, which should make the kernel */
1388 /* fail with -EFAULT before it stomps all over our memory */
1389 de = addr;
1390 size = 2 * sizeof(*de);
1391 NtAllocateVirtualMemory( GetCurrentProcess(), &addr, 1, &size, MEM_COMMIT, PAGE_READWRITE );
1392 }
1393
1394 /* set d_reclen to 65535 to work around an AFS kernel bug */
1395 de[0].d_reclen = 65535;
1396 res = ioctl( fd, VFAT_IOCTL_READDIR_BOTH, (long)de );
1397 if (res == -1)
1398 {
1399 if (errno != ENOENT) return NULL; /* VFAT ioctl probably not supported */
1400 de[0].d_reclen = 0; /* eof */
1401 }
1402 else if (!res && de[0].d_reclen == 65535) return NULL; /* AFS bug */
1403
1404 return de;
1405 }
1406
1407
1408 /***********************************************************************
1409 * read_directory_vfat
1410 *
1411 * Read a directory using the VFAT ioctl; helper for NtQueryDirectoryFile.
1412 */
1413 static int read_directory_vfat( int fd, IO_STATUS_BLOCK *io, void *buffer, ULONG length,
1414 BOOLEAN single_entry, const UNICODE_STRING *mask,
1415 BOOLEAN restart_scan, FILE_INFORMATION_CLASS class )
1416
1417 {
1418 size_t len;
1419 KERNEL_DIRENT *de;
1420 union file_directory_info *info, *last_info = NULL;
1421
1422 io->u.Status = STATUS_SUCCESS;
1423
1424 if (restart_scan) lseek( fd, 0, SEEK_SET );
1425
1426 if (length < max_dir_info_size(class)) /* we may have to return a partial entry here */
1427 {
1428 off_t old_pos = lseek( fd, 0, SEEK_CUR );
1429
1430 if (!(de = start_vfat_ioctl( fd ))) return -1; /* not supported */
1431
1432 while (de[0].d_reclen)
1433 {
1434 /* make sure names are null-terminated to work around an x86-64 kernel bug */
1435 len = min(de[0].d_reclen, sizeof(de[0].d_name) - 1 );
1436 de[0].d_name[len] = 0;
1437 len = min(de[1].d_reclen, sizeof(de[1].d_name) - 1 );
1438 de[1].d_name[len] = 0;
1439
1440 if (de[1].d_name[0])
1441 info = append_entry( buffer, io, length, de[1].d_name, de[0].d_name, mask, class );
1442 else
1443 info = append_entry( buffer, io, length, de[0].d_name, NULL, mask, class );
1444 if (info)
1445 {
1446 last_info = info;
1447 if (io->u.Status == STATUS_BUFFER_OVERFLOW)
1448 lseek( fd, old_pos, SEEK_SET ); /* restore pos to previous entry */
1449 break;
1450 }
1451 old_pos = lseek( fd, 0, SEEK_CUR );
1452 if (ioctl( fd, VFAT_IOCTL_READDIR_BOTH, (long)de ) == -1) break;
1453 }
1454 }
1455 else /* we'll only return full entries, no need to worry about overflow */
1456 {
1457 if (!(de = start_vfat_ioctl( fd ))) return -1; /* not supported */
1458
1459 while (de[0].d_reclen)
1460 {
1461 /* make sure names are null-terminated to work around an x86-64 kernel bug */
1462 len = min(de[0].d_reclen, sizeof(de[0].d_name) - 1 );
1463 de[0].d_name[len] = 0;
1464 len = min(de[1].d_reclen, sizeof(de[1].d_name) - 1 );
1465 de[1].d_name[len] = 0;
1466
1467 if (de[1].d_name[0])
1468 info = append_entry( buffer, io, length, de[1].d_name, de[0].d_name, mask, class );
1469 else
1470 info = append_entry( buffer, io, length, de[0].d_name, NULL, mask, class );
1471 if (info)
1472 {
1473 last_info = info;
1474 if (single_entry) break;
1475 /* check if we still have enough space for the largest possible entry */
1476 if (io->Information + max_dir_info_size(class) > length) break;
1477 }
1478 if (ioctl( fd, VFAT_IOCTL_READDIR_BOTH, (long)de ) == -1) break;
1479 }
1480 }
1481
1482 if (last_info) last_info->next = 0;
1483 else io->u.Status = restart_scan ? STATUS_NO_SUCH_FILE : STATUS_NO_MORE_FILES;
1484 return 0;
1485 }
1486 #endif /* VFAT_IOCTL_READDIR_BOTH */
1487
1488
1489 /***********************************************************************
1490 * read_directory_getdents
1491 *
1492 * Read a directory using the Linux getdents64 system call; helper for NtQueryDirectoryFile.
1493 */
1494 #ifdef USE_GETDENTS
1495 static int read_directory_getdents( int fd, IO_STATUS_BLOCK *io, void *buffer, ULONG length,
1496 BOOLEAN single_entry, const UNICODE_STRING *mask,
1497 BOOLEAN restart_scan, FILE_INFORMATION_CLASS class )
1498 {
1499 off_t old_pos = 0;
1500 size_t size = length;
1501 int res, fake_dot_dot = 1;
1502 char *data, local_buffer[8192];
1503 KERNEL_DIRENT64 *de;
1504 union file_directory_info *info, *last_info = NULL;
1505
1506 if (size <= sizeof(local_buffer) || !(data = RtlAllocateHeap( GetProcessHeap(), 0, size )))
1507 {
1508 size = sizeof(local_buffer);
1509 data = local_buffer;
1510 }
1511
1512 if (restart_scan) lseek( fd, 0, SEEK_SET );
1513 else if (length < max_dir_info_size(class)) /* we may have to return a partial entry here */
1514 {
1515 old_pos = lseek( fd, 0, SEEK_CUR );
1516 if (old_pos == -1 && errno == ENOENT)
1517 {
1518 io->u.Status = STATUS_NO_MORE_FILES;
1519 res = 0;
1520 goto done;
1521 }
1522 }
1523
1524 io->u.Status = STATUS_SUCCESS;
1525
1526 res = getdents64( fd, data, size );
1527 if (res == -1)
1528 {
1529 if (errno != ENOSYS)
1530 {
1531 io->u.Status = FILE_GetNtStatus();
1532 res = 0;
1533 }
1534 goto done;
1535 }
1536
1537 de = (KERNEL_DIRENT64 *)data;
1538
1539 if (restart_scan)
1540 {
1541 /* check if we got . and .. from getdents */
1542 if (res > 0)
1543 {
1544 if (!strcmp( de->d_name, "." ) && res > de->d_reclen)
1545 {
1546 KERNEL_DIRENT64 *next_de = (KERNEL_DIRENT64 *)(data + de->d_reclen);
1547 if (!strcmp( next_de->d_name, ".." )) fake_dot_dot = 0;
1548 }
1549 }
1550 /* make sure we have enough room for both entries */
1551 if (fake_dot_dot)
1552 {
1553 const ULONG min_info_size = dir_info_size( class, 1 ) + dir_info_size( class, 2 );
1554 if (length < min_info_size || single_entry)
1555 {
1556 FIXME( "not enough room %u/%u for fake . and .. entries\n", length, single_entry );
1557 fake_dot_dot = 0;
1558 }
1559 }
1560
1561 if (fake_dot_dot)
1562 {
1563 if ((info = append_entry( buffer, io, length, ".", NULL, mask, class )))
1564 last_info = info;
1565 if ((info = append_entry( buffer, io, length, "..", NULL, mask, class )))
1566 last_info = info;
1567
1568 /* check if we still have enough space for the largest possible entry */
1569 if (last_info && io->Information + max_dir_info_size(class) > length)
1570 {
1571 lseek( fd, 0, SEEK_SET ); /* reset pos to first entry */
1572 res = 0;
1573 }
1574 }
1575 }
1576
1577 while (res > 0)
1578 {
1579 res -= de->d_reclen;
1580 if (de->d_ino &&
1581 !(fake_dot_dot && (!strcmp( de->d_name, "." ) || !strcmp( de->d_name, ".." ))) &&
1582 (info = append_entry( buffer, io, length, de->d_name, NULL, mask, class )))
1583 {
1584 last_info = info;
1585 if (io->u.Status == STATUS_BUFFER_OVERFLOW)
1586 {
1587 lseek( fd, old_pos, SEEK_SET ); /* restore pos to previous entry */
1588 break;
1589 }
1590 /* check if we still have enough space for the largest possible entry */
1591 if (single_entry || io->Information + max_dir_info_size(class) > length)
1592 {
1593 if (res > 0) lseek( fd, de->d_off, SEEK_SET ); /* set pos to next entry */
1594 break;
1595 }
1596 }
1597 old_pos = de->d_off;
1598 /* move on to the next entry */
1599 if (res > 0) de = (KERNEL_DIRENT64 *)((char *)de + de->d_reclen);
1600 else
1601 {
1602 res = getdents64( fd, data, size );
1603 de = (KERNEL_DIRENT64 *)data;
1604 }
1605 }
1606
1607 if (last_info) last_info->next = 0;
1608 else io->u.Status = restart_scan ? STATUS_NO_SUCH_FILE : STATUS_NO_MORE_FILES;
1609 res = 0;
1610 done:
1611 if (data != local_buffer) RtlFreeHeap( GetProcessHeap(), 0, data );
1612 return res;
1613 }
1614
1615 #elif defined HAVE_GETDIRENTRIES
1616
1617 #ifdef _DARWIN_FEATURE_64_BIT_INODE
1618
1619 /* Darwin doesn't provide a version of getdirentries with support for 64-bit
1620 * inodes. When 64-bit inodes are enabled, the getdirentries symbol is mapped
1621 * to _getdirentries_is_not_available_when_64_bit_inodes_are_in_effect so that
1622 * we get link errors if we try to use it. We still need getdirentries, but we
1623 * don't need it to support 64-bit inodes. So, we use the legacy getdirentries
1624 * with 32-bit inodes. We have to be careful to use a corresponding dirent
1625 * structure, too.
1626 */
1627 int darwin_legacy_getdirentries(int, char *, int, long *) __asm("_getdirentries");
1628 #define getdirentries darwin_legacy_getdirentries
1629
1630 struct darwin_legacy_dirent {
1631 __uint32_t d_ino;
1632 __uint16_t d_reclen;
1633 __uint8_t d_type;
1634 __uint8_t d_namlen;
1635 char d_name[__DARWIN_MAXNAMLEN + 1];
1636 };
1637 #define dirent darwin_legacy_dirent
1638
1639 #endif
1640
1641 /***********************************************************************
1642 * wine_getdirentries
1643 *
1644 * Wrapper for the BSD getdirentries system call to fix a bug in the
1645 * Mac OS X version. For some file systems (at least Apple Filing
1646 * Protocol a.k.a. AFP), getdirentries resets the file position to 0
1647 * when it's about to return 0 (no more entries). So, a subsequent
1648 * getdirentries call starts over at the beginning again, causing an
1649 * infinite loop.
1650 */
1651 static inline int wine_getdirentries(int fd, char *buf, int nbytes, long *basep)
1652 {
1653 int res = getdirentries(fd, buf, nbytes, basep);
1654 #ifdef __APPLE__
1655 if (res == 0)
1656 lseek(fd, *basep, SEEK_SET);
1657 #endif
1658 return res;
1659 }
1660
1661 /***********************************************************************
1662 * read_directory_getdirentries
1663 *
1664 * Read a directory using the BSD getdirentries system call; helper for NtQueryDirectoryFile.
1665 */
1666 static int read_directory_getdirentries( int fd, IO_STATUS_BLOCK *io, void *buffer, ULONG length,
1667 BOOLEAN single_entry, const UNICODE_STRING *mask,
1668 BOOLEAN restart_scan, FILE_INFORMATION_CLASS class )
1669 {
1670 long restart_pos;
1671 ULONG_PTR restart_info_pos = 0;
1672 size_t size, initial_size = length;
1673 int res, fake_dot_dot = 1;
1674 char *data, local_buffer[8192];
1675 struct dirent *de;
1676 union file_directory_info *info, *last_info = NULL, *restart_last_info = NULL;
1677
1678 size = initial_size;
1679 data = local_buffer;
1680 if (size > sizeof(local_buffer) && !(data = RtlAllocateHeap( GetProcessHeap(), 0, size )))
1681 {
1682 io->u.Status = STATUS_NO_MEMORY;
1683 return io->u.Status;
1684 }
1685
1686 if (restart_scan) lseek( fd, 0, SEEK_SET );
1687
1688 io->u.Status = STATUS_SUCCESS;
1689
1690 /* FIXME: should make sure size is larger than filesystem block size */
1691 res = wine_getdirentries( fd, data, size, &restart_pos );
1692 if (res == -1)
1693 {
1694 io->u.Status = FILE_GetNtStatus();
1695 res = 0;
1696 goto done;
1697 }
1698
1699 de = (struct dirent *)data;
1700
1701 if (restart_scan)
1702 {
1703 /* check if we got . and .. from getdirentries */
1704 if (res > 0)
1705 {
1706 if (!strcmp( de->d_name, "." ) && res > de->d_reclen)
1707 {
1708 struct dirent *next_de = (struct dirent *)(data + de->d_reclen);
1709 if (!strcmp( next_de->d_name, ".." )) fake_dot_dot = 0;
1710 }
1711 }
1712 /* make sure we have enough room for both entries */
1713 if (fake_dot_dot)
1714 {
1715 const ULONG min_info_size = dir_info_size( class, 1 ) + dir_info_size( class, 2 );
1716 if (length < min_info_size || single_entry)
1717 {
1718 FIXME( "not enough room %u/%u for fake . and .. entries\n", length, single_entry );
1719 fake_dot_dot = 0;
1720 }
1721 }
1722
1723 if (fake_dot_dot)
1724 {
1725 if ((info = append_entry( buffer, io, length, ".", NULL, mask, class )))
1726 last_info = info;
1727 if ((info = append_entry( buffer, io, length, "..", NULL, mask, class )))
1728 last_info = info;
1729
1730 restart_last_info = last_info;
1731 restart_info_pos = io->Information;
1732
1733 /* check if we still have enough space for the largest possible entry */
1734 if (last_info && io->Information + max_dir_info_size(class) > length)
1735 {
1736 lseek( fd, 0, SEEK_SET ); /* reset pos to first entry */
1737 res = 0;
1738 }
1739 }
1740 }
1741
1742 while (res > 0)
1743 {
1744 res -= de->d_reclen;
1745 if (de->d_fileno &&
1746 !(fake_dot_dot && (!strcmp( de->d_name, "." ) || !strcmp( de->d_name, ".." ))) &&
1747 ((info = append_entry( buffer, io, length, de->d_name, NULL, mask, class ))))
1748 {
1749 last_info = info;
1750 if (io->u.Status == STATUS_BUFFER_OVERFLOW)
1751 {
1752 lseek( fd, (unsigned long)restart_pos, SEEK_SET );
1753 if (restart_info_pos) /* if we have a complete read already, return it */
1754 {
1755 io->u.Status = STATUS_SUCCESS;
1756 io->Information = restart_info_pos;
1757 last_info = restart_last_info;
1758 break;
1759 }
1760 /* otherwise restart from the start with a smaller size */
1761 size = (char *)de - data;
1762 if (!size) break;
1763 io->Information = 0;
1764 last_info = NULL;
1765 goto restart;
1766 }
1767 /* if we have to return but the buffer contains more data, restart with a smaller size */
1768 if (res > 0 && (single_entry || io->Information + max_dir_info_size(class) > length))
1769 {
1770 lseek( fd, (unsigned long)restart_pos, SEEK_SET );
1771 size = (char *)de - data;
1772 io->Information = restart_info_pos;
1773 last_info = restart_last_info;
1774 goto restart;
1775 }
1776 }
1777 /* move on to the next entry */
1778 if (res > 0)
1779 {
1780 de = (struct dirent *)((char *)de + de->d_reclen);
1781 continue;
1782 }
1783 if (size < initial_size) break; /* already restarted once, give up now */
1784 size = min( size, length - io->Information );
1785 /* if size is too small don't bother to continue */
1786 if (size < max_dir_info_size(class) && last_info) break;
1787 restart_last_info = last_info;
1788 restart_info_pos = io->Information;
1789 restart:
1790 res = wine_getdirentries( fd, data, size, &restart_pos );
1791 de = (struct dirent *)data;
1792 }
1793
1794 if (last_info) last_info->next = 0;
1795 else io->u.Status = restart_scan ? STATUS_NO_SUCH_FILE : STATUS_NO_MORE_FILES;
1796 res = 0;
1797 done:
1798 if (data != local_buffer) RtlFreeHeap( GetProcessHeap(), 0, data );
1799 return res;
1800 }
1801
1802 #ifdef _DARWIN_FEATURE_64_BIT_INODE
1803 #undef getdirentries
1804 #undef dirent
1805 #endif
1806
1807 #endif /* HAVE_GETDIRENTRIES */
1808
1809
1810 /***********************************************************************
1811 * read_directory_readdir
1812 *
1813 * Read a directory using the POSIX readdir interface; helper for NtQueryDirectoryFile.
1814 */
1815 static void read_directory_readdir( int fd, IO_STATUS_BLOCK *io, void *buffer, ULONG length,
1816 BOOLEAN single_entry, const UNICODE_STRING *mask,
1817 BOOLEAN restart_scan, FILE_INFORMATION_CLASS class )
1818 {
1819 DIR *dir;
1820 off_t i, old_pos = 0;
1821 struct dirent *de;
1822 union file_directory_info *info, *last_info = NULL;
1823
1824 if (!(dir = opendir( "." )))
1825 {
1826 io->u.Status = FILE_GetNtStatus();
1827 return;
1828 }
1829
1830 if (!restart_scan)
1831 {
1832 old_pos = lseek( fd, 0, SEEK_CUR );
1833 /* skip the right number of entries */
1834 for (i = 0; i < old_pos - 2; i++)
1835 {
1836 if (!readdir( dir ))
1837 {
1838 closedir( dir );
1839 io->u.Status = STATUS_NO_MORE_FILES;
1840 return;
1841 }
1842 }
1843 }
1844 io->u.Status = STATUS_SUCCESS;
1845
1846 for (;;)
1847 {
1848 if (old_pos == 0)
1849 info = append_entry( buffer, io, length, ".", NULL, mask, class );
1850 else if (old_pos == 1)
1851 info = append_entry( buffer, io, length, "..", NULL, mask, class );
1852 else if ((de = readdir( dir )))
1853 {
1854 if (strcmp( de->d_name, "." ) && strcmp( de->d_name, ".." ))
1855 info = append_entry( buffer, io, length, de->d_name, NULL, mask, class );
1856 else
1857 info = NULL;
1858 }
1859 else
1860 break;
1861 old_pos++;
1862 if (info)
1863 {
1864 last_info = info;
1865 if (io->u.Status == STATUS_BUFFER_OVERFLOW)
1866 {
1867 old_pos--; /* restore pos to previous entry */
1868 break;
1869 }
1870 if (single_entry) break;
1871 /* check if we still have enough space for the largest possible entry */
1872 if (io->Information + max_dir_info_size(class) > length) break;
1873 }
1874 }
1875
1876 lseek( fd, old_pos, SEEK_SET ); /* store dir offset as filepos for fd */
1877 closedir( dir );
1878
1879 if (last_info) last_info->next = 0;
1880 else io->u.Status = restart_scan ? STATUS_NO_SUCH_FILE : STATUS_NO_MORE_FILES;
1881 }
1882
1883 /***********************************************************************
1884 * read_directory_stat
1885 *
1886 * Read a single file from a directory by determining whether the file
1887 * identified by mask exists using stat.
1888 */
1889 static int read_directory_stat( int fd, IO_STATUS_BLOCK *io, void *buffer, ULONG length,
1890 BOOLEAN single_entry, const UNICODE_STRING *mask,
1891 BOOLEAN restart_scan, FILE_INFORMATION_CLASS class )
1892 {
1893 int unix_len, ret, used_default;
1894 char *unix_name;
1895 struct stat st;
1896
1897 TRACE("trying optimisation for file %s\n", debugstr_us( mask ));
1898
1899 unix_len = ntdll_wcstoumbs( 0, mask->Buffer, mask->Length / sizeof(WCHAR), NULL, 0, NULL, NULL );
1900 if (!(unix_name = RtlAllocateHeap( GetProcessHeap(), 0, unix_len + 1)))
1901 {
1902 io->u.Status = STATUS_NO_MEMORY;
1903 return 0;
1904 }
1905 ret = ntdll_wcstoumbs( 0, mask->Buffer, mask->Length / sizeof(WCHAR), unix_name, unix_len,
1906 NULL, &used_default );
1907 if (ret > 0 && !used_default)
1908 {
1909 unix_name[ret] = 0;
1910 if (restart_scan)
1911 {
1912 lseek( fd, 0, SEEK_SET );
1913 }
1914 else if (lseek( fd, 0, SEEK_CUR ) != 0)
1915 {
1916 io->u.Status = STATUS_NO_MORE_FILES;
1917 ret = 0;
1918 goto done;
1919 }
1920
1921 ret = stat( unix_name, &st );
1922 if (!ret)
1923 {
1924 union file_directory_info *info = append_entry( buffer, io, length, unix_name, NULL, NULL, class );
1925 if (info)
1926 {
1927 info->next = 0;
1928 if (io->u.Status != STATUS_BUFFER_OVERFLOW) lseek( fd, 1, SEEK_CUR );
1929 }
1930 else io->u.Status = STATUS_NO_MORE_FILES;
1931 }
1932 }
1933 else ret = -1;
1934
1935 done:
1936 RtlFreeHeap( GetProcessHeap(), 0, unix_name );
1937
1938 TRACE("returning %d\n", ret);
1939
1940 return ret;
1941 }
1942
1943
1944 static inline WCHAR *mempbrkW( const WCHAR *ptr, const WCHAR *accept, size_t n )
1945 {
1946 const WCHAR *end;
1947 for (end = ptr + n; ptr < end; ptr++) if (strchrW( accept, *ptr )) return (WCHAR *)ptr;
1948 return NULL;
1949 }
1950
1951 /******************************************************************************
1952 * NtQueryDirectoryFile [NTDLL.@]
1953 * ZwQueryDirectoryFile [NTDLL.@]
1954 */
1955 NTSTATUS WINAPI NtQueryDirectoryFile( HANDLE handle, HANDLE event,
1956 PIO_APC_ROUTINE apc_routine, PVOID apc_context,
1957 PIO_STATUS_BLOCK io,
1958 PVOID buffer, ULONG length,
1959 FILE_INFORMATION_CLASS info_class,
1960 BOOLEAN single_entry,
1961 PUNICODE_STRING mask,
1962 BOOLEAN restart_scan )
1963 {
1964 int cwd, fd, needs_close;
1965 static const WCHAR wszWildcards[] = { '*','?',0 };
1966
1967 TRACE("(%p %p %p %p %p %p 0x%08x 0x%08x 0x%08x %s 0x%08x\n",
1968 handle, event, apc_routine, apc_context, io, buffer,
1969 length, info_class, single_entry, debugstr_us(mask),
1970 restart_scan);
1971
1972 if (event || apc_routine)
1973 {
1974 FIXME( "Unsupported yet option\n" );
1975 return io->u.Status = STATUS_NOT_IMPLEMENTED;
1976 }
1977 switch (info_class)
1978 {
1979 case FileDirectoryInformation:
1980 case FileBothDirectoryInformation:
1981 case FileFullDirectoryInformation:
1982 case FileIdBothDirectoryInformation:
1983 case FileIdFullDirectoryInformation:
1984 if (length < dir_info_size( info_class, 1 )) return io->u.Status = STATUS_INFO_LENGTH_MISMATCH;
1985 break;
1986 default:
1987 FIXME( "Unsupported file info class %d\n", info_class );
1988 return io->u.Status = STATUS_NOT_IMPLEMENTED;
1989 }
1990
1991 if ((io->u.Status = server_get_unix_fd( handle, FILE_LIST_DIRECTORY, &fd, &needs_close, NULL, NULL )) != STATUS_SUCCESS)
1992 return io->u.Status;
1993
1994 io->Information = 0;
1995
1996 RtlEnterCriticalSection( &dir_section );
1997
1998 if (show_dot_files == -1) init_options();
1999
2000 cwd = open( ".", O_RDONLY );
2001 if (fchdir( fd ) != -1)
2002 {
2003 struct stat st;
2004 fstat( fd, &st );
2005 curdir.dev = st.st_dev;
2006 curdir.ino = st.st_ino;
2007 #ifdef VFAT_IOCTL_READDIR_BOTH
2008 if ((read_directory_vfat( fd, io, buffer, length, single_entry,
2009 mask, restart_scan, info_class )) != -1) goto done;
2010 #endif
2011 if (mask && !mempbrkW( mask->Buffer, wszWildcards, mask->Length / sizeof(WCHAR) ) &&
2012 read_directory_stat( fd, io, buffer, length, single_entry,
2013 mask, restart_scan, info_class ) != -1) goto done;
2014 #ifdef USE_GETDENTS
2015 if ((read_directory_getdents( fd, io, buffer, length, single_entry,
2016 mask, restart_scan, info_class )) != -1) goto done;
2017 #elif defined HAVE_GETDIRENTRIES
2018 if ((read_directory_getdirentries( fd, io, buffer, length, single_entry,
2019 mask, restart_scan, info_class )) != -1) goto done;
2020 #endif
2021 read_directory_readdir( fd, io, buffer, length, single_entry, mask, restart_scan, info_class );
2022
2023 done:
2024 if (cwd == -1 || fchdir( cwd ) == -1) chdir( "/" );
2025 }
2026 else io->u.Status = FILE_GetNtStatus();
2027
2028 RtlLeaveCriticalSection( &dir_section );
2029
2030 if (needs_close) close( fd );
2031 if (cwd != -1) close( cwd );
2032 TRACE( "=> %x (%ld)\n", io->u.Status, io->Information );
2033 return io->u.Status;
2034 }
2035
2036
2037 /***********************************************************************
2038 * find_file_in_dir
2039 *
2040 * Find a file in a directory the hard way, by doing a case-insensitive search.
2041 * The file found is appended to unix_name at pos.
2042 * There must be at least MAX_DIR_ENTRY_LEN+2 chars available at pos.
2043 */
2044 static NTSTATUS find_file_in_dir( char *unix_name, int pos, const WCHAR *name, int length,
2045 int check_case, int *is_win_dir )
2046 {
2047 WCHAR buffer[MAX_DIR_ENTRY_LEN];
2048 UNICODE_STRING str;
2049 BOOLEAN spaces;
2050 DIR *dir;
2051 struct dirent *de;
2052 struct stat st;
2053 int ret, used_default, is_name_8_dot_3;
2054
2055 /* try a shortcut for this directory */
2056
2057 unix_name[pos++] = '/';
2058 ret = ntdll_wcstoumbs( 0, name, length, unix_name + pos, MAX_DIR_ENTRY_LEN,
2059 NULL, &used_default );
2060 /* if we used the default char, the Unix name won't round trip properly back to Unicode */
2061 /* so it cannot match the file we are looking for */
2062 if (ret >= 0 && !used_default)
2063 {
2064 unix_name[pos + ret] = 0;
2065 if (!stat( unix_name, &st ))
2066 {
2067 if (is_win_dir) *is_win_dir = is_same_file( &windir, &st );
2068 return STATUS_SUCCESS;
2069 }
2070 }
2071 if (check_case) goto not_found; /* we want an exact match */
2072
2073 if (pos > 1) unix_name[pos - 1] = 0;
2074 else unix_name[1] = 0; /* keep the initial slash */
2075
2076 /* check if it fits in 8.3 so that we don't look for short names if we won't need them */
2077
2078 str.Buffer = (WCHAR *)name;
2079 str.Length = length * sizeof(WCHAR);
2080 str.MaximumLength = str.Length;
2081 is_name_8_dot_3 = RtlIsNameLegalDOS8Dot3( &str, NULL, &spaces ) && !spaces;
2082
2083 if (!is_name_8_dot_3 && !get_dir_case_sensitivity( unix_name )) goto not_found;
2084
2085 /* now look for it through the directory */
2086
2087 #ifdef VFAT_IOCTL_READDIR_BOTH
2088 if (is_name_8_dot_3)
2089 {
2090 int fd = open( unix_name, O_RDONLY | O_DIRECTORY );
2091 if (fd != -1)
2092 {
2093 KERNEL_DIRENT *de;
2094
2095 RtlEnterCriticalSection( &dir_section );
2096 if ((de = start_vfat_ioctl( fd )))
2097 {
2098 unix_name[pos - 1] = '/';
2099 while (de[0].d_reclen)
2100 {
2101 /* make sure names are null-terminated to work around an x86-64 kernel bug */
2102 size_t len = min(de[0].d_reclen, sizeof(de[0].d_name) - 1 );
2103 de[0].d_name[len] = 0;
2104 len = min(de[1].d_reclen, sizeof(de[1].d_name) - 1 );
2105 de[1].d_name[len] = 0;
2106
2107 if (de[1].d_name[0])
2108 {
2109 ret = ntdll_umbstowcs( 0, de[1].d_name, strlen(de[1].d_name),
2110 buffer, MAX_DIR_ENTRY_LEN );
2111 if (ret == length && !memicmpW( buffer, name, length))
2112 {
2113 strcpy( unix_name + pos, de[1].d_name );
2114 RtlLeaveCriticalSection( &dir_section );
2115 close( fd );
2116 goto success;
2117 }
2118 }
2119 ret = ntdll_umbstowcs( 0, de[0].d_name, strlen(de[0].d_name),
2120 buffer, MAX_DIR_ENTRY_LEN );
2121 if (ret == length && !memicmpW( buffer, name, length))
2122 {
2123 strcpy( unix_name + pos,
2124 de[1].d_name[0] ? de[1].d_name : de[0].d_name );
2125 RtlLeaveCriticalSection( &dir_section );
2126 close( fd );
2127 goto success;
2128 }
2129 if (ioctl( fd, VFAT_IOCTL_READDIR_BOTH, (long)de ) == -1)
2130 {
2131 RtlLeaveCriticalSection( &dir_section );
2132 close( fd );
2133 goto not_found;
2134 }
2135 }
2136 }
2137 RtlLeaveCriticalSection( &dir_section );
2138 close( fd );
2139 }
2140 /* fall through to normal handling */
2141 }
2142 #endif /* VFAT_IOCTL_READDIR_BOTH */
2143
2144 if (!(dir = opendir( unix_name )))
2145 {
2146 if (errno == ENOENT) return STATUS_OBJECT_PATH_NOT_FOUND;
2147 else return FILE_GetNtStatus();
2148 }
2149 unix_name[pos - 1] = '/';
2150 str.Buffer = buffer;
2151 str.MaximumLength = sizeof(buffer);
2152 while ((de = readdir( dir )))
2153 {
2154 ret = ntdll_umbstowcs( 0, de->d_name, strlen(de->d_name), buffer, MAX_DIR_ENTRY_LEN );
2155 if (ret == length && !memicmpW( buffer, name, length ))
2156 {
2157 strcpy( unix_name + pos, de->d_name );
2158 closedir( dir );
2159 goto success;
2160 }
2161
2162 if (!is_name_8_dot_3) continue;
2163
2164 str.Length = ret * sizeof(WCHAR);
2165 if (!RtlIsNameLegalDOS8Dot3( &str, NULL, &spaces ) || spaces)
2166 {
2167 WCHAR short_nameW[12];
2168 ret = hash_short_file_name( &str, short_nameW );
2169 if (ret == length && !memicmpW( short_nameW, name, length ))
2170 {
2171 strcpy( unix_name + pos, de->d_name );
2172 closedir( dir );
2173 goto success;
2174 }
2175 }
2176 }
2177 closedir( dir );
2178 goto not_found; /* avoid warning */
2179
2180 not_found:
2181 unix_name[pos - 1] = 0;
2182 return STATUS_OBJECT_PATH_NOT_FOUND;
2183
2184 success:
2185 if (is_win_dir && !stat( unix_name, &st )) *is_win_dir = is_same_file( &windir, &st );
2186 return STATUS_SUCCESS;
2187 }
2188
2189
2190 #ifndef _WIN64
2191
2192 static const WCHAR catrootW[] = {'s','y','s','t','e','m','3','2','\\','c','a','t','r','o','o','t',0};
2193 static const WCHAR catroot2W[] = {'s','y','s','t','e','m','3','2','\\','c','a','t','r','o','o','t','2',0};
2194 static const WCHAR driversstoreW[] = {'s','y','s','t','e','m','3','2','\\','d','r','i','v','e','r','s','s','t','o','r','e',0};
2195 static const WCHAR driversetcW[] = {'s','y','s','t','e','m','3','2','\\','d','r','i','v','e','r','s','\\','e','t','c',0};
2196 static const WCHAR logfilesW[] = {'s','y','s','t','e','m','3','2','\\','l','o','g','f','i','l','e','s',0};
2197 static const WCHAR spoolW[] = {'s','y','s','t','e','m','3','2','\\','s','p','o','o','l',0};
2198 static const WCHAR system32W[] = {'s','y','s','t','e','m','3','2',0};
2199 static const WCHAR syswow64W[] = {'s','y','s','w','o','w','6','4',0};
2200 static const WCHAR sysnativeW[] = {'s','y','s','n','a','t','i','v','e',0};
2201 static const WCHAR regeditW[] = {'r','e','g','e','d','i','t','.','e','x','e',0};
2202 static const WCHAR wow_regeditW[] = {'s','y','s','w','o','w','6','4','\\','r','e','g','e','d','i','t','.','e','x','e',0};
2203
2204 static struct
2205 {
2206 const WCHAR *source;
2207 const WCHAR *dos_target;
2208 const char *unix_target;
2209 } redirects[] =
2210 {
2211 { catrootW, NULL, NULL },
2212 { catroot2W, NULL, NULL },
2213 { driversstoreW, NULL, NULL },
2214 { driversetcW, NULL, NULL },
2215 { logfilesW, NULL, NULL },
2216 { spoolW, NULL, NULL },
2217 { system32W, syswow64W, NULL },
2218 { sysnativeW, system32W, NULL },
2219 { regeditW, wow_regeditW, NULL }
2220 };
2221
2222 static unsigned int nb_redirects;
2223
2224
2225 /***********************************************************************
2226 * get_redirect_target
2227 *
2228 * Find the target unix name for a redirected dir.
2229 */
2230 static const char *get_redirect_target( const char *windows_dir, const WCHAR *name )
2231 {
2232 int used_default, len, pos, win_len = strlen( windows_dir );
2233 char *unix_name, *unix_target = NULL;
2234 NTSTATUS status;
2235
2236 if (!(unix_name = RtlAllocateHeap( GetProcessHeap(), 0, win_len + MAX_DIR_ENTRY_LEN + 2 )))
2237 return NULL;
2238 memcpy( unix_name, windows_dir, win_len );
2239 pos = win_len;
2240
2241 while (*name)
2242 {
2243 const WCHAR *end, *next;
2244
2245 for (end = name; *end; end++) if (IS_SEPARATOR(*end)) break;
2246 for (next = end; *next; next++) if (!IS_SEPARATOR(*next)) break;
2247
2248 status = find_file_in_dir( unix_name, pos, name, end - name, FALSE, NULL );
2249 if (status == STATUS_OBJECT_PATH_NOT_FOUND && !*next) /* not finding last element is ok */
2250 {
2251 len = ntdll_wcstoumbs( 0, name, end - name, unix_name + pos + 1,
2252 MAX_DIR_ENTRY_LEN - (pos - win_len), NULL, &used_default );
2253 if (len > 0 && !used_default)
2254 {
2255 unix_name[pos] = '/';
2256 pos += len + 1;
2257 unix_name[pos] = 0;
2258 break;
2259 }
2260 }
2261 if (status) goto done;
2262 pos += strlen( unix_name + pos );
2263 name = next;
2264 }
2265
2266 if ((unix_target = RtlAllocateHeap( GetProcessHeap(), 0, pos - win_len )))
2267 memcpy( unix_target, unix_name + win_len + 1, pos - win_len );
2268
2269 done:
2270 RtlFreeHeap( GetProcessHeap(), 0, unix_name );
2271 return unix_target;
2272 }
2273
2274
2275 /***********************************************************************
2276 * init_redirects
2277 */
2278 static void init_redirects(void)
2279 {
2280 UNICODE_STRING nt_name;
2281 ANSI_STRING unix_name;
2282 NTSTATUS status;
2283 struct stat st;
2284 unsigned int i;
2285
2286 if (!RtlDosPathNameToNtPathName_U( windows_dir.Buffer, &nt_name, NULL, NULL ))
2287 {
2288 ERR( "can't convert %s\n", debugstr_us(&windows_dir) );
2289 return;
2290 }
2291 status = wine_nt_to_unix_file_name( &nt_name, &unix_name, FILE_OPEN_IF, FALSE );
2292 RtlFreeUnicodeString( &nt_name );
2293 if (status)
2294 {
2295 ERR( "cannot open %s (%x)\n", debugstr_us(&windows_dir), status );
2296 return;
2297 }
2298 if (!stat( unix_name.Buffer, &st ))
2299 {
2300 windir.dev = st.st_dev;
2301 windir.ino = st.st_ino;
2302 nb_redirects = sizeof(redirects) / sizeof(redirects[0]);
2303 for (i = 0; i < nb_redirects; i++)
2304 {
2305 if (!redirects[i].dos_target) continue;
2306 redirects[i].unix_target = get_redirect_target( unix_name.Buffer, redirects[i].dos_target );
2307 TRACE( "%s -> %s\n", debugstr_w(redirects[i].source), redirects[i].unix_target );
2308 }
2309 }
2310 RtlFreeAnsiString( &unix_name );
2311
2312 }
2313
2314
2315 /***********************************************************************
2316 * match_redirect
2317 *
2318 * Check if path matches a redirect name. If yes, return matched length.
2319 */
2320 static int match_redirect( const WCHAR *path, int len, const WCHAR *redir, int check_case )
2321 {
2322 int i = 0;
2323
2324 while (i < len && *redir)
2325 {
2326 if (IS_SEPARATOR(path[i]))
2327 {
2328 if (*redir++ != '\\') return 0;
2329 while (i < len && IS_SEPARATOR(path[i])) i++;
2330 continue; /* move on to next path component */
2331 }
2332 else if (check_case)
2333 {
2334 if (path[i] != *redir) return 0;
2335 }
2336 else
2337 {
2338 if (tolowerW(path[i]) != tolowerW(*redir)) return 0;
2339 }
2340 i++;
2341 redir++;
2342 }
2343 if (*redir) return 0;
2344 if (i < len && !IS_SEPARATOR(path[i])) return 0;
2345 while (i < len && IS_SEPARATOR(path[i])) i++;
2346 return i;
2347 }
2348
2349
2350 /***********************************************************************
2351 * get_redirect_path
2352 *
2353 * Retrieve the Unix path corresponding to a redirected path if any.
2354 */
2355 static int get_redirect_path( char *unix_name, int pos, const WCHAR *name, int length, int check_case )
2356 {
2357 unsigned int i;
2358 int len;
2359
2360 for (i = 0; i < nb_redirects; i++)
2361 {
2362 if ((len = match_redirect( name, length, redirects[i].source, check_case )))
2363 {
2364 if (!redirects[i].unix_target) break;
2365 unix_name[pos++] = '/';
2366 strcpy( unix_name + pos, redirects[i].unix_target );
2367 return len;
2368 }
2369 }
2370 return 0;
2371 }
2372
2373 #else /* _WIN64 */
2374
2375 /* there are no redirects on 64-bit */
2376
2377 static const unsigned int nb_redirects = 0;
2378
2379 static int get_redirect_path( char *unix_name, int pos, const WCHAR *name, int length, int check_case )
2380 {
2381 return 0;
2382 }
2383
2384 #endif
2385
2386 /***********************************************************************
2387 * DIR_init_windows_dir
2388 */
2389 void DIR_init_windows_dir( const WCHAR *win, const WCHAR *sys )
2390 {
2391 /* FIXME: should probably store paths as NT file names */
2392
2393 RtlCreateUnicodeString( &windows_dir, win );
2394 RtlCreateUnicodeString( &system_dir, sys );
2395
2396 #ifndef _WIN64
2397 if (is_wow64) init_redirects();
2398 #endif
2399 }
2400
2401
2402 /******************************************************************************
2403 * get_dos_device
2404 *
2405 * Get the Unix path of a DOS device.
2406 */
2407 static NTSTATUS get_dos_device( const WCHAR *name, UINT name_len, ANSI_STRING *unix_name_ret )
2408 {
2409 const char *config_dir = wine_get_config_dir();
2410 struct stat st;
2411 char *unix_name, *new_name, *dev;
2412 unsigned int i;
2413 int unix_len;
2414
2415 /* make sure the device name is ASCII */
2416 for (i = 0; i < name_len; i++)
2417 if (name[i] <= 32 || name[i] >= 127) return STATUS_BAD_DEVICE_TYPE;
2418
2419 unix_len = strlen(config_dir) + sizeof("/dosdevices/") + name_len + 1;
2420
2421 if (!(unix_name = RtlAllocateHeap( GetProcessHeap(), 0, unix_len )))
2422 return STATUS_NO_MEMORY;
2423
2424 strcpy( unix_name, config_dir );
2425 strcat( unix_name, "/dosdevices/" );
2426 dev = unix_name + strlen(unix_name);
2427
2428 for (i = 0; i < name_len; i++) dev[i] = (char)tolowerW(name[i]);
2429 dev[i] = 0;
2430
2431 /* special case for drive devices */
2432 if (name_len == 2 && dev[1] == ':')
2433 {
2434 dev[i++] = ':';
2435 dev[i] = 0;
2436 }
2437
2438 for (;;)
2439 {
2440 if (!stat( unix_name, &st ))
2441 {
2442 TRACE( "%s -> %s\n", debugstr_wn(name,name_len), debugstr_a(unix_name) );
2443 unix_name_ret->Buffer = unix_name;
2444 unix_name_ret->Length = strlen(unix_name);
2445 unix_name_ret->MaximumLength = unix_len;
2446 return STATUS_SUCCESS;
2447 }
2448 if (!dev) break;
2449
2450 /* now try some defaults for it */
2451 if (!strcmp( dev, "aux" ))
2452 {
2453 strcpy( dev, "com1" );
2454 continue;
2455 }
2456 if (!strcmp( dev, "prn" ))
2457 {
2458 strcpy( dev, "lpt1" );
2459 continue;
2460 }
2461 if (!strcmp( dev, "nul" ))
2462 {
2463 strcpy( unix_name, "/dev/null" );
2464 dev = NULL; /* last try */
2465 continue;
2466 }
2467
2468 new_name = NULL;
2469 if (dev[1] == ':' && dev[2] == ':') /* drive device */
2470 {
2471 dev[2] = 0; /* remove last ':' to get the drive mount point symlink */
2472 new_name = get_default_drive_device( unix_name );
2473 }
2474 else if (!strncmp( dev, "com", 3 )) new_name = get_default_com_device( atoi(dev + 3 ));
2475 else if (!strncmp( dev, "lpt", 3 )) new_name = get_default_lpt_device( atoi(dev + 3 ));
2476
2477 if (!new_name) break;
2478
2479 RtlFreeHeap( GetProcessHeap(), 0, unix_name );
2480 unix_name = new_name;
2481 unix_len = strlen(unix_name) + 1;
2482 dev = NULL; /* last try */
2483 }
2484 RtlFreeHeap( GetProcessHeap(), 0, unix_name );
2485 return STATUS_BAD_DEVICE_TYPE;
2486 }
2487
2488
2489 /* return the length of the DOS namespace prefix if any */
2490 static inline int get_dos_prefix_len( const UNICODE_STRING *name )
2491 {
2492 static const WCHAR nt_prefixW[] = {'\\','?','?','\\'};
2493 static const WCHAR dosdev_prefixW[] = {'\\','D','o','s','D','e','v','i','c','e','s','\\'};
2494
2495 if (name->Length > sizeof(nt_prefixW) &&
2496 !memcmp( name->Buffer, nt_prefixW, sizeof(nt_prefixW) ))
2497 return sizeof(nt_prefixW) / sizeof(WCHAR);
2498
2499 if (name->Length > sizeof(dosdev_prefixW) &&
2500 !memicmpW( name->Buffer, dosdev_prefixW, sizeof(dosdev_prefixW)/sizeof(WCHAR) ))
2501 return sizeof(dosdev_prefixW) / sizeof(WCHAR);
2502
2503 return 0;
2504 }
2505
2506
2507 /******************************************************************************
2508 * find_file_id
2509 *
2510 * Recursively search directories from the dir queue for a given inode.
2511 */
2512 static NTSTATUS find_file_id( ANSI_STRING *unix_name, ULONGLONG file_id, dev_t dev )
2513 {
2514 unsigned int pos;
2515 DIR *dir;
2516 struct dirent *de;
2517 NTSTATUS status;
2518 struct stat st;
2519
2520 while (!(status = next_dir_in_queue( unix_name->Buffer )))
2521 {
2522 if (!(dir = opendir( unix_name->Buffer ))) continue;
2523 TRACE( "searching %s for %s\n", unix_name->Buffer, wine_dbgstr_longlong(file_id) );
2524 pos = strlen( unix_name->Buffer );
2525 if (pos + MAX_DIR_ENTRY_LEN >= unix_name->MaximumLength/sizeof(WCHAR))
2526 {
2527 char *new = RtlReAllocateHeap( GetProcessHeap(), 0, unix_name->Buffer,
2528 unix_name->MaximumLength * 2 );
2529 if (!new)
2530 {
2531 closedir( dir );
2532 return STATUS_NO_MEMORY;
2533 }
2534 unix_name->MaximumLength *= 2;
2535 unix_name->Buffer = new;
2536 }
2537 unix_name->Buffer[pos++] = '/';
2538 while ((de = readdir( dir )))
2539 {
2540 if (!strcmp( de->d_name, "." ) || !strcmp( de->d_name, ".." )) continue;
2541 strcpy( unix_name->Buffer + pos, de->d_name );
2542 if (lstat( unix_name->Buffer, &st ) == -1) continue;
2543 if (st.st_dev != dev) continue;
2544 if (st.st_ino == file_id)
2545 {
2546 closedir( dir );
2547 return STATUS_SUCCESS;
2548 }
2549 if (!S_ISDIR( st.st_mode )) continue;
2550 if ((status = add_dir_to_queue( unix_name->Buffer )) != STATUS_SUCCESS)
2551 {
2552 closedir( dir );
2553 return status;
2554 }
2555 }
2556 closedir( dir );
2557 }
2558 return status;
2559 }
2560
2561
2562 /******************************************************************************
2563 * file_id_to_unix_file_name
2564 *
2565 * Lookup a file from its file id instead of its name.
2566 */
2567 NTSTATUS file_id_to_unix_file_name( const OBJECT_ATTRIBUTES *attr, ANSI_STRING *unix_name )
2568 {
2569 enum server_fd_type type;
2570 int old_cwd, root_fd, needs_close;
2571 NTSTATUS status;
2572 ULONGLONG file_id;
2573 struct stat st, root_st;
2574
2575 if (attr->ObjectName->Length != sizeof(ULONGLONG)) return STATUS_OBJECT_PATH_SYNTAX_BAD;
2576 if (!attr->RootDirectory) return STATUS_INVALID_PARAMETER;
2577 memcpy( &file_id, attr->ObjectName->Buffer, sizeof(file_id) );
2578
2579 unix_name->MaximumLength = 2 * MAX_DIR_ENTRY_LEN + 4;
2580 if (!(unix_name->Buffer = RtlAllocateHeap( GetProcessHeap(), 0, unix_name->MaximumLength )))
2581 return STATUS_NO_MEMORY;
2582 strcpy( unix_name->Buffer, "." );
2583
2584 if ((status = server_get_unix_fd( attr->RootDirectory, 0, &root_fd, &needs_close, &type, NULL )))
2585 goto done;
2586
2587 if (type != FD_TYPE_DIR)
2588 {
2589 status = STATUS_OBJECT_TYPE_MISMATCH;
2590 goto done;
2591 }
2592
2593 fstat( root_fd, &root_st );
2594 if (root_st.st_ino == file_id) /* shortcut for "." */
2595 {
2596 status = STATUS_SUCCESS;
2597 goto done;
2598 }
2599
2600 RtlEnterCriticalSection( &dir_section );
2601 if ((old_cwd = open( ".", O_RDONLY )) != -1 && fchdir( root_fd ) != -1)
2602 {
2603 /* shortcut for ".." */
2604 if (!stat( "..", &st ) && st.st_dev == root_st.st_dev && st.st_ino == file_id)
2605 {
2606 strcpy( unix_name->Buffer, ".." );
2607 status = STATUS_SUCCESS;
2608 }
2609 else
2610 {
2611 status = add_dir_to_queue( "." );
2612 if (!status)
2613 status = find_file_id( unix_name, file_id, root_st.st_dev );
2614 if (!status) /* get rid of "./" prefix */
2615 memmove( unix_name->Buffer, unix_name->Buffer + 2, strlen(unix_name->Buffer) - 1 );
2616 flush_dir_queue();
2617 }
2618 if (fchdir( old_cwd ) == -1) chdir( "/" );
2619 }
2620 else status = FILE_GetNtStatus();
2621 RtlLeaveCriticalSection( &dir_section );
2622 if (old_cwd != -1) close( old_cwd );
2623
2624 done:
2625 if (status == STATUS_SUCCESS)
2626 {
2627 TRACE( "%s -> %s\n", wine_dbgstr_longlong(file_id), debugstr_a(unix_name->Buffer) );
2628 unix_name->Length = strlen( unix_name->Buffer );
2629 }
2630 else
2631 {
2632 TRACE( "%s not found in dir %p\n", wine_dbgstr_longlong(file_id), attr->RootDirectory );
2633 RtlFreeHeap( GetProcessHeap(), 0, unix_name->Buffer );
2634 }
2635 if (needs_close) close( root_fd );
2636 return status;
2637 }
2638
2639
2640 /******************************************************************************
2641 * lookup_unix_name
2642 *
2643 * Helper for nt_to_unix_file_name
2644 */
2645 static NTSTATUS lookup_unix_name( const WCHAR *name, int name_len, char **buffer, int unix_len, int pos,
2646 UINT disposition, BOOLEAN check_case )
2647 {
2648 NTSTATUS status;
2649 int ret, used_default, len;
2650 struct stat st;
2651 char *unix_name = *buffer;
2652 const BOOL redirect = nb_redirects && ntdll_get_thread_data()->wow64_redir;
2653
2654 /* try a shortcut first */
2655
2656 ret = ntdll_wcstoumbs( 0, name, name_len, unix_name + pos, unix_len - pos - 1,
2657 NULL, &used_default );
2658
2659 while (name_len && IS_SEPARATOR(*name))
2660 {
2661 name++;
2662 name_len--;
2663 }
2664
2665 if (ret >= 0 && !used_default) /* if we used the default char the name didn't convert properly */
2666 {
2667 char *p;
2668 unix_name[pos + ret] = 0;
2669 for (p = unix_name + pos ; *p; p++) if (*p == '\\') *p = '/';
2670 if (!redirect || (!strstr( unix_name, "/windows/") && strncmp( unix_name, "windows/", 8 )))
2671 {
2672 if (!stat( unix_name, &st ))
2673 {
2674 /* creation fails with STATUS_ACCESS_DENIED for the root of the drive */
2675 if (disposition == FILE_CREATE)
2676 return name_len ? STATUS_OBJECT_NAME_COLLISION : STATUS_ACCESS_DENIED;
2677 return STATUS_SUCCESS;
2678 }
2679 }
2680 }
2681
2682 if (!name_len) /* empty name -> drive root doesn't exist */
2683 return STATUS_OBJECT_PATH_NOT_FOUND;
2684 if (check_case && !redirect && (disposition == FILE_OPEN || disposition == FILE_OVERWRITE))
2685 return STATUS_OBJECT_NAME_NOT_FOUND;
2686
2687 /* now do it component by component */
2688
2689 while (name_len)
2690 {
2691 const WCHAR *end, *next;
2692 int is_win_dir = 0;
2693
2694 end = name;
2695 while (end < name + name_len && !IS_SEPARATOR(*end)) end++;
2696 next = end;
2697 while (next < name + name_len && IS_SEPARATOR(*next)) next++;
2698 name_len -= next - name;
2699
2700 /* grow the buffer if needed */
2701
2702 if (unix_len - pos < MAX_DIR_ENTRY_LEN + 2)
2703 {
2704 char *new_name;
2705 unix_len += 2 * MAX_DIR_ENTRY_LEN;
2706 if (!(new_name = RtlReAllocateHeap( GetProcessHeap(), 0, unix_name, unix_len )))
2707 return STATUS_NO_MEMORY;
2708 unix_name = *buffer = new_name;
2709 }
2710
2711 status = find_file_in_dir( unix_name, pos, name, end - name,
2712 check_case, redirect ? &is_win_dir : NULL );
2713
2714 /* if this is the last element, not finding it is not necessarily fatal */
2715 if (!name_len)
2716 {
2717 if (status == STATUS_OBJECT_PATH_NOT_FOUND)
2718 {
2719 status = STATUS_OBJECT_NAME_NOT_FOUND;
2720 if (disposition != FILE_OPEN && disposition != FILE_OVERWRITE)
2721 {
2722 ret = ntdll_wcstoumbs( 0, name, end - name, unix_name + pos + 1,
2723 MAX_DIR_ENTRY_LEN, NULL, &used_default );
2724 if (ret > 0 && !used_default)
2725 {
2726 unix_name[pos] = '/';
2727 unix_name[pos + 1 + ret] = 0;
2728 status = STATUS_NO_SUCH_FILE;
2729 break;
2730 }
2731 }
2732 }
2733 else if (status == STATUS_SUCCESS && disposition == FILE_CREATE)
2734 {
2735 status = STATUS_OBJECT_NAME_COLLISION;
2736 }
2737 }
2738
2739 if (status != STATUS_SUCCESS) break;
2740
2741 pos += strlen( unix_name + pos );
2742 name = next;
2743
2744 if (is_win_dir && (len = get_redirect_path( unix_name, pos, name, name_len, check_case )))
2745 {
2746 name += len;
2747 name_len -= len;
2748 pos += strlen( unix_name + pos );
2749 TRACE( "redirecting -> %s + %s\n", debugstr_a(unix_name), debugstr_w(name) );
2750 }
2751 }
2752
2753 return status;
2754 }
2755
2756
2757 /******************************************************************************
2758 * nt_to_unix_file_name_attr
2759 */
2760 NTSTATUS nt_to_unix_file_name_attr( const OBJECT_ATTRIBUTES *attr, ANSI_STRING *unix_name_ret,
2761 UINT disposition )
2762 {
2763 static const WCHAR invalid_charsW[] = { INVALID_NT_CHARS, 0 };
2764 enum server_fd_type type;
2765 int old_cwd, root_fd, needs_close;
2766 const WCHAR *name, *p;
2767 char *unix_name;
2768 int name_len, unix_len;
2769 NTSTATUS status;
2770 BOOLEAN check_case = !(attr->Attributes & OBJ_CASE_INSENSITIVE);
2771
2772 if (!attr->RootDirectory) /* without root dir fall back to normal lookup */
2773 return wine_nt_to_unix_file_name( attr->ObjectName, unix_name_ret, disposition, check_case );
2774
2775 name = attr->ObjectName->Buffer;
2776 name_len = attr->ObjectName->Length / sizeof(WCHAR);
2777
2778 if (name_len && IS_SEPARATOR(name[0])) return STATUS_INVALID_PARAMETER;
2779
2780 /* check for invalid characters */
2781 for (p = name; p < name + name_len; p++)
2782 if (*p < 32 || strchrW( invalid_charsW, *p )) return STATUS_OBJECT_NAME_INVALID;
2783
2784 unix_len = ntdll_wcstoumbs( 0, name, name_len, NULL, 0, NULL, NULL );
2785 unix_len += MAX_DIR_ENTRY_LEN + 3;
2786 if (!(unix_name = RtlAllocateHeap( GetProcessHeap(), 0, unix_len )))
2787 return STATUS_NO_MEMORY;
2788 unix_name[0] = '.';
2789
2790 if (!(status = server_get_unix_fd( attr->RootDirectory, 0, &root_fd, &needs_close, &type, NULL )))
2791 {
2792 if (type != FD_TYPE_DIR)
2793 {
2794 if (needs_close) close( root_fd );
2795 status = STATUS_BAD_DEVICE_TYPE;
2796 }
2797 else
2798 {
2799 RtlEnterCriticalSection( &dir_section );
2800 if ((old_cwd = open( ".", O_RDONLY )) != -1 && fchdir( root_fd ) != -1)
2801 {
2802 status = lookup_unix_name( name, name_len, &unix_name, unix_len, 1,
2803 disposition, check_case );
2804 if (fchdir( old_cwd ) == -1) chdir( "/" );
2805 }
2806 else status = FILE_GetNtStatus();
2807 RtlLeaveCriticalSection( &dir_section );
2808 if (old_cwd != -1) close( old_cwd );
2809 if (needs_close) close( root_fd );
2810 }
2811 }
2812 else if (status == STATUS_OBJECT_TYPE_MISMATCH) status = STATUS_BAD_DEVICE_TYPE;
2813
2814 if (status == STATUS_SUCCESS || status == STATUS_NO_SUCH_FILE)
2815 {
2816 TRACE( "%s -> %s\n", debugstr_us(attr->ObjectName), debugstr_a(unix_name) );
2817 unix_name_ret->Buffer = unix_name;
2818 unix_name_ret->Length = strlen(unix_name);
2819 unix_name_ret->MaximumLength = unix_len;
2820 }
2821 else
2822 {
2823 TRACE( "%s not found in %s\n", debugstr_w(name), unix_name );
2824 RtlFreeHeap( GetProcessHeap(), 0, unix_name );
2825 }
2826 return status;
2827 }
2828
2829
2830 /******************************************************************************
2831 * wine_nt_to_unix_file_name (NTDLL.@) Not a Windows API
2832 *
2833 * Convert a file name from NT namespace to Unix namespace.
2834 *
2835 * If disposition is not FILE_OPEN or FILE_OVERWRITE, the last path
2836 * element doesn't have to exist; in that case STATUS_NO_SUCH_FILE is
2837 * returned, but the unix name is still filled in properly.
2838 */
2839 NTSTATUS CDECL wine_nt_to_unix_file_name( const UNICODE_STRING *nameW, ANSI_STRING *unix_name_ret,
2840 UINT disposition, BOOLEAN check_case )
2841 {
2842 static const WCHAR unixW[] = {'u','n','i','x'};
2843 static const WCHAR invalid_charsW[] = { INVALID_NT_CHARS, 0 };
2844
2845 NTSTATUS status = STATUS_SUCCESS;
2846 const char *config_dir = wine_get_config_dir();
2847 const WCHAR *name, *p;
2848 struct stat st;
2849 char *unix_name;
2850 int pos, ret, name_len, unix_len, prefix_len, used_default;
2851 WCHAR prefix[MAX_DIR_ENTRY_LEN];
2852 BOOLEAN is_unix = FALSE;
2853
2854 name = nameW->Buffer;
2855 name_len = nameW->Length / sizeof(WCHAR);
2856
2857 if (!name_len || !IS_SEPARATOR(name[0])) return STATUS_OBJECT_PATH_SYNTAX_BAD;
2858
2859 if (!(pos = get_dos_prefix_len( nameW )))
2860 return STATUS_BAD_DEVICE_TYPE; /* no DOS prefix, assume NT native name */
2861
2862 name += pos;
2863 name_len -= pos;
2864
2865 /* check for sub-directory */
2866 for (pos = 0; pos < name_len; pos++)
2867 {
2868 if (IS_SEPARATOR(name[pos])) break;
2869 if (name[pos] < 32 || strchrW( invalid_charsW, name[pos] ))
2870 return STATUS_OBJECT_NAME_INVALID;
2871 }
2872 if (pos > MAX_DIR_ENTRY_LEN)
2873 return STATUS_OBJECT_NAME_INVALID;
2874
2875 if (pos == name_len) /* no subdir, plain DOS device */
2876 return get_dos_device( name, name_len, unix_name_ret );
2877
2878 for (prefix_len = 0; prefix_len < pos; prefix_len++)
2879 prefix[prefix_len] = tolowerW(name[prefix_len]);
2880
2881 name += prefix_len;
2882 name_len -= prefix_len;
2883
2884 /* check for invalid characters (all chars except 0 are valid for unix) */
2885 is_unix = (prefix_len == 4 && !memcmp( prefix, unixW, sizeof(unixW) ));
2886 if (is_unix)
2887 {
2888 for (p = name; p < name + name_len; p++)
2889 if (!*p) return STATUS_OBJECT_NAME_INVALID;
2890 check_case = TRUE;
2891 }
2892 else
2893 {
2894 for (p = name; p < name + name_len; p++)
2895 if (*p < 32 || strchrW( invalid_charsW, *p )) return STATUS_OBJECT_NAME_INVALID;
2896 }
2897
2898 unix_len = ntdll_wcstoumbs( 0, prefix, prefix_len, NULL, 0, NULL, NULL );
2899 unix_len += ntdll_wcstoumbs( 0, name, name_len, NULL, 0, NULL, NULL );
2900 unix_len += MAX_DIR_ENTRY_LEN + 3;
2901 unix_len += strlen(config_dir) + sizeof("/dosdevices/");
2902 if (!(unix_name = RtlAllocateHeap( GetProcessHeap(), 0, unix_len )))
2903 return STATUS_NO_MEMORY;
2904 strcpy( unix_name, config_dir );
2905 strcat( unix_name, "/dosdevices/" );
2906 pos = strlen(unix_name);
2907
2908 ret = ntdll_wcstoumbs( 0, prefix, prefix_len, unix_name + pos, unix_len - pos - 1,
2909 NULL, &used_default );
2910 if (!ret || used_default)
2911 {
2912 RtlFreeHeap( GetProcessHeap(), 0, unix_name );
2913 return STATUS_OBJECT_NAME_INVALID;
2914 }
2915 pos += ret;
2916
2917 /* check if prefix exists (except for DOS drives to avoid extra stat calls) */
2918
2919 if (prefix_len != 2 || prefix[1] != ':')
2920 {
2921 unix_name[pos] = 0;
2922 if (lstat( unix_name, &st ) == -1 && errno == ENOENT)
2923 {
2924 if (!is_unix)
2925 {
2926 RtlFreeHeap( GetProcessHeap(), 0, unix_name );
2927 return STATUS_BAD_DEVICE_TYPE;
2928 }
2929 pos = 0; /* fall back to unix root */
2930 }
2931 }
2932
2933 status = lookup_unix_name( name, name_len, &unix_name, unix_len, pos, disposition, check_case );
2934 if (status == STATUS_SUCCESS || status == STATUS_NO_SUCH_FILE)
2935 {
2936 TRACE( "%s -> %s\n", debugstr_us(nameW), debugstr_a(unix_name) );
2937 unix_name_ret->Buffer = unix_name;
2938 unix_name_ret->Length = strlen(unix_name);
2939 unix_name_ret->MaximumLength = unix_len;
2940 }
2941 else
2942 {
2943 TRACE( "%s not found in %s\n", debugstr_w(name), unix_name );
2944 RtlFreeHeap( GetProcessHeap(), 0, unix_name );
2945 }
2946 return status;
2947 }
2948
2949
2950 /******************************************************************
2951 * RtlWow64EnableFsRedirection (NTDLL.@)
2952 */
2953 NTSTATUS WINAPI RtlWow64EnableFsRedirection( BOOLEAN enable )
2954 {
2955 if (!is_wow64) return STATUS_NOT_IMPLEMENTED;
2956 ntdll_get_thread_data()->wow64_redir = enable;
2957 return STATUS_SUCCESS;
2958 }
2959
2960
2961 /******************************************************************
2962 * RtlWow64EnableFsRedirectionEx (NTDLL.@)
2963 */
2964 NTSTATUS WINAPI RtlWow64EnableFsRedirectionEx( ULONG disable, ULONG *old_value )
2965 {
2966 if (!is_wow64) return STATUS_NOT_IMPLEMENTED;
2967 *old_value = !ntdll_get_thread_data()->wow64_redir;
2968 ntdll_get_thread_data()->wow64_redir = !disable;
2969 return STATUS_SUCCESS;
2970 }
2971
2972
2973 /******************************************************************
2974 * RtlDoesFileExists_U (NTDLL.@)
2975 */
2976 BOOLEAN WINAPI RtlDoesFileExists_U(LPCWSTR file_name)
2977 {
2978 UNICODE_STRING nt_name;
2979 FILE_BASIC_INFORMATION basic_info;
2980 OBJECT_ATTRIBUTES attr;
2981 BOOLEAN ret;
2982
2983 if (!RtlDosPathNameToNtPathName_U( file_name, &nt_name, NULL, NULL )) return FALSE;
2984
2985 attr.Length = sizeof(attr);
2986 attr.RootDirectory = 0;
2987 attr.ObjectName = &nt_name;
2988 attr.Attributes = OBJ_CASE_INSENSITIVE;
2989 attr.SecurityDescriptor = NULL;
2990 attr.SecurityQualityOfService = NULL;
2991
2992 ret = NtQueryAttributesFile(&attr, &basic_info) == STATUS_SUCCESS;
2993
2994 RtlFreeUnicodeString( &nt_name );
2995 return ret;
2996 }
2997
2998
2999 /***********************************************************************
3000 * DIR_unmount_device
3001 *
3002 * Unmount the specified device.
3003 */
3004 NTSTATUS DIR_unmount_device( HANDLE handle )
3005 {
3006 NTSTATUS status;
3007 int unix_fd, needs_close;
3008
3009 if (!(status = server_get_unix_fd( handle, 0, &unix_fd, &needs_close, NULL, NULL )))
3010 {
3011 struct stat st;
3012 char *mount_point = NULL;
3013
3014 if (fstat( unix_fd, &st ) == -1 || !is_valid_mounted_device( &st ))
3015 status = STATUS_INVALID_PARAMETER;
3016 else
3017 {
3018 if ((mount_point = get_device_mount_point( st.st_rdev )))
3019 {
3020 #ifdef __APPLE__
3021 static const char umount[] = "diskutil unmount >/dev/null 2>&1 ";
3022 #else
3023 static const char umount[] = "umount >/dev/null 2>&1 ";
3024 #endif
3025 char *cmd = RtlAllocateHeap( GetProcessHeap(), 0, strlen(mount_point)+sizeof(umount));
3026 if (cmd)
3027 {
3028 strcpy( cmd, umount );
3029 strcat( cmd, mount_point );
3030 system( cmd );
3031 RtlFreeHeap( GetProcessHeap(), 0, cmd );
3032 #ifdef linux
3033 /* umount will fail to release the loop device since we still have
3034 a handle to it, so we release it here */
3035 if (major(st.st_rdev) == LOOP_MAJOR) ioctl( unix_fd, 0x4c01 /*LOOP_CLR_FD*/, 0 );
3036 #endif
3037 }
3038 RtlFreeHeap( GetProcessHeap(), 0, mount_point );
3039 }
3040 }
3041 if (needs_close) close( unix_fd );
3042 }
3043 return status;
3044 }
3045
3046
3047 /******************************************************************************
3048 * DIR_get_unix_cwd
3049 *
3050 * Retrieve the Unix name of the current directory; helper for wine_unix_to_nt_file_name.
3051 * Returned value must be freed by caller.
3052 */
3053 NTSTATUS DIR_get_unix_cwd( char **cwd )
3054 {
3055 int old_cwd, unix_fd, needs_close;
3056 CURDIR *curdir;
3057 HANDLE handle;
3058 NTSTATUS status;
3059
3060 RtlAcquirePebLock();
3061
3062 if (NtCurrentTeb()->Tib.SubSystemTib) /* FIXME: hack */
3063 curdir = &((WIN16_SUBSYSTEM_TIB *)NtCurrentTeb()->Tib.SubSystemTib)->curdir;
3064 else
3065 curdir = &NtCurrentTeb()->Peb->ProcessParameters->CurrentDirectory;
3066
3067 if (!(handle = curdir->Handle))
3068 {
3069 UNICODE_STRING dirW;
3070 OBJECT_ATTRIBUTES attr;
3071 IO_STATUS_BLOCK io;
3072
3073 if (!RtlDosPathNameToNtPathName_U( curdir->DosPath.Buffer, &dirW, NULL, NULL ))
3074 {
3075 status = STATUS_OBJECT_NAME_INVALID;
3076 goto done;
3077 }
3078 attr.Length = sizeof(attr);
3079 attr.RootDirectory = 0;
3080 attr.Attributes = OBJ_CASE_INSENSITIVE;
3081 attr.ObjectName = &dirW;
3082 attr.SecurityDescriptor = NULL;
3083 attr.SecurityQualityOfService = NULL;
3084
3085 status = NtOpenFile( &handle, 0, &attr, &io, 0,
3086 FILE_DIRECTORY_FILE | FILE_SYNCHRONOUS_IO_NONALERT );
3087 RtlFreeUnicodeString( &dirW );
3088 if (status != STATUS_SUCCESS) goto done;
3089 }
3090
3091 if ((status = server_get_unix_fd( handle, 0, &unix_fd, &needs_close, NULL, NULL )) == STATUS_SUCCESS)
3092 {
3093 RtlEnterCriticalSection( &dir_section );
3094
3095 if ((old_cwd = open(".", O_RDONLY)) != -1 && fchdir( unix_fd ) != -1)
3096 {
3097 unsigned int size = 512;
3098
3099 for (;;)
3100 {
3101 if (!(*cwd = RtlAllocateHeap( GetProcessHeap(), 0, size )))
3102 {
3103 status = STATUS_NO_MEMORY;
3104 break;
3105 }
3106 if (getcwd( *cwd, size )) break;
3107 RtlFreeHeap( GetProcessHeap(), 0, *cwd );
3108 if (errno != ERANGE)
3109 {
3110 status = STATUS_OBJECT_PATH_INVALID;
3111 break;
3112 }
3113 size *= 2;
3114 }
3115 if (fchdir( old_cwd ) == -1) chdir( "/" );
3116 }
3117 else status = FILE_GetNtStatus();
3118
3119 RtlLeaveCriticalSection( &dir_section );
3120 if (old_cwd != -1) close( old_cwd );
3121 if (needs_close) close( unix_fd );
3122 }
3123 if (!curdir->Handle) NtClose( handle );
3124
3125 done:
3126 RtlReleasePebLock();
3127 return status;
3128 }
3129
3130 struct read_changes_info
3131 {
3132 HANDLE FileHandle;
3133 PVOID Buffer;
3134 ULONG BufferSize;
3135 PIO_APC_ROUTINE apc;
3136 void *apc_arg;
3137 };
3138
3139 /* callback for ioctl user APC */
3140 static void WINAPI read_changes_user_apc( void *arg, IO_STATUS_BLOCK *io, ULONG reserved )
3141 {
3142 struct read_changes_info *info = arg;
3143 if (info->apc) info->apc( info->apc_arg, io, reserved );
3144 RtlFreeHeap( GetProcessHeap(), 0, info );
3145 }
3146
3147 static NTSTATUS read_changes_apc( void *user, PIO_STATUS_BLOCK iosb, NTSTATUS status, void **apc )
3148 {
3149 struct read_changes_info *info = user;
3150 char data[PATH_MAX];
3151 NTSTATUS ret;
3152 int size;
3153
3154 SERVER_START_REQ( read_change )
3155 {
3156 req->handle = wine_server_obj_handle( info->FileHandle );
3157 wine_server_set_reply( req, data, PATH_MAX );
3158 ret = wine_server_call( req );
3159 size = wine_server_reply_size( reply );
3160 }
3161 SERVER_END_REQ;
3162
3163 if (ret == STATUS_SUCCESS && info->Buffer)
3164 {
3165 PFILE_NOTIFY_INFORMATION pfni = info->Buffer;
3166 int i, left = info->BufferSize;
3167 DWORD *last_entry_offset = NULL;
3168 struct filesystem_event *event = (struct filesystem_event*)data;
3169
3170 while (size && left >= sizeof(*pfni))
3171 {
3172 /* convert to an NT style path */
3173 for (i=0; i<event->len; i++)
3174 if (event->name[i] == '/')
3175 event->name[i] = '\\';
3176
3177 pfni->Action = event->action;
3178 pfni->FileNameLength = ntdll_umbstowcs( 0, event->name, event->len, pfni->FileName,
3179 (left - offsetof(FILE_NOTIFY_INFORMATION, FileName)) / sizeof(WCHAR));
3180 last_entry_offset = &pfni->NextEntryOffset;
3181
3182 if(pfni->FileNameLength == -1 || pfni->FileNameLength == -2)
3183 break;
3184
3185 i = offsetof(FILE_NOTIFY_INFORMATION, FileName[pfni->FileNameLength]);
3186 pfni->FileNameLength *= sizeof(WCHAR);
3187 pfni->NextEntryOffset = i;
3188 pfni = (FILE_NOTIFY_INFORMATION*)((char*)pfni + i);
3189 left -= i;
3190
3191 i = (offsetof(struct filesystem_event, name[event->len])
3192 + sizeof(int)-1) / sizeof(int) * sizeof(int);
3193 event = (struct filesystem_event*)((char*)event + i);
3194 size -= i;
3195 }
3196
3197 if (size)
3198 {
3199 ret = STATUS_NOTIFY_ENUM_DIR;
3200 size = 0;
3201 }
3202 else
3203 {
3204 *last_entry_offset = 0;
3205 size = info->BufferSize - left;
3206 }
3207 }
3208 else
3209 {
3210 ret = STATUS_NOTIFY_ENUM_DIR;
3211 size = 0;
3212 }
3213
3214 iosb->u.Status = ret;
3215 iosb->Information = size;
3216 *apc = read_changes_user_apc;
3217 return ret;
3218 }
3219
3220 #define FILE_NOTIFY_ALL ( \
3221 FILE_NOTIFY_CHANGE_FILE_NAME | \
3222 FILE_NOTIFY_CHANGE_DIR_NAME | \
3223 FILE_NOTIFY_CHANGE_ATTRIBUTES | \
3224 FILE_NOTIFY_CHANGE_SIZE | \
3225 FILE_NOTIFY_CHANGE_LAST_WRITE | \
3226 FILE_NOTIFY_CHANGE_LAST_ACCESS | \
3227 FILE_NOTIFY_CHANGE_CREATION | \
3228 FILE_NOTIFY_CHANGE_SECURITY )
3229
3230 /******************************************************************************
3231 * NtNotifyChangeDirectoryFile [NTDLL.@]
3232 */
3233 NTSTATUS WINAPI
3234 NtNotifyChangeDirectoryFile( HANDLE FileHandle, HANDLE Event,
3235 PIO_APC_ROUTINE ApcRoutine, PVOID ApcContext,
3236 PIO_STATUS_BLOCK IoStatusBlock, PVOID Buffer,
3237 ULONG BufferSize, ULONG CompletionFilter, BOOLEAN WatchTree )
3238 {
3239 struct read_changes_info *info;
3240 NTSTATUS status;
3241 ULONG_PTR cvalue = ApcRoutine ? 0 : (ULONG_PTR)ApcContext;
3242
3243 TRACE("%p %p %p %p %p %p %u %u %d\n",
3244 FileHandle, Event, ApcRoutine, ApcContext, IoStatusBlock,
3245 Buffer, BufferSize, CompletionFilter, WatchTree );
3246
3247 if (!IoStatusBlock)
3248 return STATUS_ACCESS_VIOLATION;
3249
3250 if (CompletionFilter == 0 || (CompletionFilter & ~FILE_NOTIFY_ALL))
3251 return STATUS_INVALID_PARAMETER;
3252
3253 info = RtlAllocateHeap( GetProcessHeap(), 0, sizeof *info );
3254 if (!info)
3255 return STATUS_NO_MEMORY;
3256
3257 info->FileHandle = FileHandle;
3258 info->Buffer = Buffer;
3259 info->BufferSize = BufferSize;
3260 info->apc = ApcRoutine;
3261 info->apc_arg = ApcContext;
3262
3263 SERVER_START_REQ( read_directory_changes )
3264 {
3265 req->filter = CompletionFilter;
3266 req->want_data = (Buffer != NULL);
3267 req->subtree = WatchTree;
3268 req->async.handle = wine_server_obj_handle( FileHandle );
3269 req->async.callback = wine_server_client_ptr( read_changes_apc );
3270 req->async.iosb = wine_server_client_ptr( IoStatusBlock );
3271 req->async.arg = wine_server_client_ptr( info );
3272 req->async.event = wine_server_obj_handle( Event );
3273 req->async.cvalue = cvalue;
3274 status = wine_server_call( req );
3275 }
3276 SERVER_END_REQ;
3277
3278 if (status != STATUS_PENDING)
3279 RtlFreeHeap( GetProcessHeap(), 0, info );
3280
3281 return status;
3282 }
Maarten's multimedia branch