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push 091faec692ac84fbc736a6b002e76f7e78d28f7b
[wine/hacks.git] / dlls / ntdll / directory.c
blob865c2fa863bce23ea30562b420a2154f84924ef7
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_IOCTL_H
45 #include <sys/ioctl.h>
46 #endif
47 #ifdef HAVE_LINUX_IOCTL_H
48 #include <linux/ioctl.h>
49 #endif
50 #ifdef HAVE_LINUX_MAJOR_H
51 # include <linux/major.h>
52 #endif
53 #ifdef HAVE_SYS_PARAM_H
54 #include <sys/param.h>
55 #endif
56 #ifdef HAVE_SYS_MOUNT_H
57 #include <sys/mount.h>
58 #endif
59 #include <time.h>
60 #ifdef HAVE_UNISTD_H
61 # include <unistd.h>
62 #endif
63
64 #define NONAMELESSUNION
65 #define NONAMELESSSTRUCT
66 #include "ntstatus.h"
67 #define WIN32_NO_STATUS
68 #include "windef.h"
69 #include "winnt.h"
70 #include "winternl.h"
71 #include "ntdll_misc.h"
72 #include "wine/unicode.h"
73 #include "wine/server.h"
74 #include "wine/list.h"
75 #include "wine/library.h"
76 #include "wine/debug.h"
77
78 WINE_DEFAULT_DEBUG_CHANNEL(file);
79
80 /* just in case... */
81 #undef VFAT_IOCTL_READDIR_BOTH
82 #undef USE_GETDENTS
83
84 #ifdef linux
85
86 /* We want the real kernel dirent structure, not the libc one */
87 typedef struct
88 {
89 long d_ino;
90 long d_off;
91 unsigned short d_reclen;
92 char d_name[256];
93 } KERNEL_DIRENT;
94
95 /* Define the VFAT ioctl to get both short and long file names */
96 #define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, KERNEL_DIRENT [2] )
97
98 #ifndef O_DIRECTORY
99 # define O_DIRECTORY 0200000 /* must be directory */
100 #endif
101
102 #ifdef __i386__
103
104 typedef struct
105 {
106 ULONG64 d_ino;
107 LONG64 d_off;
108 unsigned short d_reclen;
109 unsigned char d_type;
110 char d_name[256];
111 } KERNEL_DIRENT64;
112
113 static inline int getdents64( int fd, char *de, unsigned int size )
114 {
115 int ret;
116 __asm__( "pushl %%ebx; movl %2,%%ebx; int $0x80; popl %%ebx"
117 : "=a" (ret)
118 : "0" (220 /*NR_getdents64*/), "r" (fd), "c" (de), "d" (size)
119 : "memory" );
120 if (ret < 0)
121 {
122 errno = -ret;
123 ret = -1;
124 }
125 return ret;
126 }
127 #define USE_GETDENTS
128
129 #endif /* i386 */
130
131 #endif /* linux */
132
133 #define IS_OPTION_TRUE(ch) ((ch) == 'y' || (ch) == 'Y' || (ch) == 't' || (ch) == 'T' || (ch) == '1')
134 #define IS_SEPARATOR(ch) ((ch) == '\\' || (ch) == '/')
135
136 #define INVALID_NT_CHARS '*','?','<','>','|','"'
137 #define INVALID_DOS_CHARS INVALID_NT_CHARS,'+','=',',',';','[',']',' ','\345'
138
139 #define MAX_DIR_ENTRY_LEN 255 /* max length of a directory entry in chars */
140
141 #define MAX_IGNORED_FILES 4
142
143 struct file_identity
144 {
145 dev_t dev;
146 ino_t ino;
147 };
148
149 static struct file_identity ignored_files[MAX_IGNORED_FILES];
150 static int ignored_files_count;
151
152 union file_directory_info
153 {
154 ULONG next;
155 FILE_DIRECTORY_INFORMATION dir;
156 FILE_BOTH_DIRECTORY_INFORMATION both;
157 FILE_FULL_DIRECTORY_INFORMATION full;
158 FILE_ID_BOTH_DIRECTORY_INFORMATION id_both;
159 FILE_ID_FULL_DIRECTORY_INFORMATION id_full;
160 };
161
162 static int show_dot_files = -1;
163
164 /* at some point we may want to allow Winelib apps to set this */
165 static const int is_case_sensitive = FALSE;
166
167 UNICODE_STRING windows_dir = { 0, 0, NULL }; /* windows directory */
168 UNICODE_STRING system_dir = { 0, 0, NULL }; /* system directory */
169
170 static struct file_identity curdir;
171 static struct file_identity windir;
172
173 static RTL_CRITICAL_SECTION dir_section;
174 static RTL_CRITICAL_SECTION_DEBUG critsect_debug =
175 {
176 0, 0, &dir_section,
177 { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
178 0, 0, { (DWORD_PTR)(__FILE__ ": dir_section") }
179 };
180 static RTL_CRITICAL_SECTION dir_section = { &critsect_debug, -1, 0, 0, 0, 0 };
181
182
183 /* check if a given Unicode char is OK in a DOS short name */
184 static inline BOOL is_invalid_dos_char( WCHAR ch )
185 {
186 static const WCHAR invalid_chars[] = { INVALID_DOS_CHARS,'~','.',0 };
187 if (ch > 0x7f) return TRUE;
188 return strchrW( invalid_chars, ch ) != NULL;
189 }
190
191 /* check if the device can be a mounted volume */
192 static inline int is_valid_mounted_device( const struct stat *st )
193 {
194 #if defined(linux) || defined(__sun__)
195 return S_ISBLK( st->st_mode );
196 #else
197 /* disks are char devices on *BSD */
198 return S_ISCHR( st->st_mode );
199 #endif
200 }
201
202 static inline void ignore_file( const char *name )
203 {
204 struct stat st;
205 assert( ignored_files_count < MAX_IGNORED_FILES );
206 if (!stat( name, &st ))
207 {
208 ignored_files[ignored_files_count].dev = st.st_dev;
209 ignored_files[ignored_files_count].ino = st.st_ino;
210 ignored_files_count++;
211 }
212 }
213
214 static inline BOOL is_same_file( const struct file_identity *file, const struct stat *st )
215 {
216 return st->st_dev == file->dev && st->st_ino == file->ino;
217 }
218
219 static inline BOOL is_ignored_file( const struct stat *st )
220 {
221 unsigned int i;
222
223 for (i = 0; i < ignored_files_count; i++)
224 if (is_same_file( &ignored_files[i], st )) return TRUE;
225 return FALSE;
226 }
227
228 static inline unsigned int dir_info_size( FILE_INFORMATION_CLASS class, unsigned int len )
229 {
230 switch (class)
231 {
232 case FileDirectoryInformation:
233 return (FIELD_OFFSET( FILE_DIRECTORY_INFORMATION, FileName[len] ) + 3) & ~3;
234 case FileBothDirectoryInformation:
235 return (FIELD_OFFSET( FILE_BOTH_DIRECTORY_INFORMATION, FileName[len] ) + 3) & ~3;
236 case FileFullDirectoryInformation:
237 return (FIELD_OFFSET( FILE_FULL_DIRECTORY_INFORMATION, FileName[len] ) + 3) & ~3;
238 case FileIdBothDirectoryInformation:
239 return (FIELD_OFFSET( FILE_ID_BOTH_DIRECTORY_INFORMATION, FileName[len] ) + 3) & ~3;
240 case FileIdFullDirectoryInformation:
241 return (FIELD_OFFSET( FILE_ID_FULL_DIRECTORY_INFORMATION, FileName[len] ) + 3) & ~3;
242 default:
243 assert(0);
244 return 0;
245 }
246 }
247
248 static inline unsigned int max_dir_info_size( FILE_INFORMATION_CLASS class )
249 {
250 return dir_info_size( class, MAX_DIR_ENTRY_LEN );
251 }
252
253
254 /* support for a directory queue for filesystem searches */
255
256 struct dir_name
257 {
258 struct list entry;
259 char name[1];
260 };
261
262 static struct list dir_queue = LIST_INIT( dir_queue );
263
264 static NTSTATUS add_dir_to_queue( const char *name )
265 {
266 int len = strlen( name ) + 1;
267 struct dir_name *dir = RtlAllocateHeap( GetProcessHeap(), 0,
268 FIELD_OFFSET( struct dir_name, name[len] ));
269 if (!dir) return STATUS_NO_MEMORY;
270 strcpy( dir->name, name );
271 list_add_tail( &dir_queue, &dir->entry );
272 return STATUS_SUCCESS;
273 }
274
275 static NTSTATUS next_dir_in_queue( char *name )
276 {
277 struct list *head = list_head( &dir_queue );
278 if (head)
279 {
280 struct dir_name *dir = LIST_ENTRY( head, struct dir_name, entry );
281 strcpy( name, dir->name );
282 list_remove( &dir->entry );
283 RtlFreeHeap( GetProcessHeap(), 0, dir );
284 return STATUS_SUCCESS;
285 }
286 return STATUS_OBJECT_NAME_NOT_FOUND;
287 }
288
289 static void flush_dir_queue(void)
290 {
291 struct list *head;
292
293 while ((head = list_head( &dir_queue )))
294 {
295 struct dir_name *dir = LIST_ENTRY( head, struct dir_name, entry );
296 list_remove( &dir->entry );
297 RtlFreeHeap( GetProcessHeap(), 0, dir );
298 }
299 }
300
301
302 /***********************************************************************
303 * get_default_com_device
304 *
305 * Return the default device to use for serial ports.
306 */
307 static char *get_default_com_device( int num )
308 {
309 char *ret = NULL;
310
311 if (!num || num > 9) return ret;
312 #ifdef linux
313 ret = RtlAllocateHeap( GetProcessHeap(), 0, sizeof("/dev/ttyS0") );
314 if (ret)
315 {
316 strcpy( ret, "/dev/ttyS0" );
317 ret[strlen(ret) - 1] = '0' + num - 1;
318 }
319 #elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
320 ret = RtlAllocateHeap( GetProcessHeap(), 0, sizeof("/dev/cuad0") );
321 if (ret)
322 {
323 strcpy( ret, "/dev/cuad0" );
324 ret[strlen(ret) - 1] = '0' + num - 1;
325 }
326 #else
327 FIXME( "no known default for device com%d\n", num );
328 #endif
329 return ret;
330 }
331
332
333 /***********************************************************************
334 * get_default_lpt_device
335 *
336 * Return the default device to use for parallel ports.
337 */
338 static char *get_default_lpt_device( int num )
339 {
340 char *ret = NULL;
341
342 if (!num || num > 9) return ret;
343 #ifdef linux
344 ret = RtlAllocateHeap( GetProcessHeap(), 0, sizeof("/dev/lp0") );
345 if (ret)
346 {
347 strcpy( ret, "/dev/lp0" );
348 ret[strlen(ret) - 1] = '0' + num - 1;
349 }
350 #else
351 FIXME( "no known default for device lpt%d\n", num );
352 #endif
353 return ret;
354 }
355
356
357 /***********************************************************************
358 * DIR_get_drives_info
359 *
360 * Retrieve device/inode number for all the drives. Helper for find_drive_root.
361 */
362 unsigned int DIR_get_drives_info( struct drive_info info[MAX_DOS_DRIVES] )
363 {
364 static struct drive_info cache[MAX_DOS_DRIVES];
365 static time_t last_update;
366 static unsigned int nb_drives;
367 unsigned int ret;
368 time_t now = time(NULL);
369
370 RtlEnterCriticalSection( &dir_section );
371 if (now != last_update)
372 {
373 const char *config_dir = wine_get_config_dir();
374 char *buffer, *p;
375 struct stat st;
376 unsigned int i;
377
378 if ((buffer = RtlAllocateHeap( GetProcessHeap(), 0,
379 strlen(config_dir) + sizeof("/dosdevices/a:") )))
380 {
381 strcpy( buffer, config_dir );
382 strcat( buffer, "/dosdevices/a:" );
383 p = buffer + strlen(buffer) - 2;
384
385 for (i = nb_drives = 0; i < MAX_DOS_DRIVES; i++)
386 {
387 *p = 'a' + i;
388 if (!stat( buffer, &st ))
389 {
390 cache[i].dev = st.st_dev;
391 cache[i].ino = st.st_ino;
392 nb_drives++;
393 }
394 else
395 {
396 cache[i].dev = 0;
397 cache[i].ino = 0;
398 }
399 }
400 RtlFreeHeap( GetProcessHeap(), 0, buffer );
401 }
402 last_update = now;
403 }
404 memcpy( info, cache, sizeof(cache) );
405 ret = nb_drives;
406 RtlLeaveCriticalSection( &dir_section );
407 return ret;
408 }
409
410
411 /***********************************************************************
412 * parse_mount_entries
413 *
414 * Parse mount entries looking for a given device. Helper for get_default_drive_device.
415 */
416
417 #ifdef sun
418 #include <sys/vfstab.h>
419 static char *parse_vfstab_entries( FILE *f, dev_t dev, ino_t ino)
420 {
421 struct vfstab entry;
422 struct stat st;
423 char *device;
424
425 while (! getvfsent( f, &entry ))
426 {
427 /* don't even bother stat'ing network mounts, there's no meaningful device anyway */
428 if (!strcmp( entry.vfs_fstype, "nfs" ) ||
429 !strcmp( entry.vfs_fstype, "smbfs" ) ||
430 !strcmp( entry.vfs_fstype, "ncpfs" )) continue;
431
432 if (stat( entry.vfs_mountp, &st ) == -1) continue;
433 if (st.st_dev != dev || st.st_ino != ino) continue;
434 if (!strcmp( entry.vfs_fstype, "fd" ))
435 {
436 if ((device = strstr( entry.vfs_mntopts, "dev=" )))
437 {
438 char *p = strchr( device + 4, ',' );
439 if (p) *p = 0;
440 return device + 4;
441 }
442 }
443 else
444 return entry.vfs_special;
445 }
446 return NULL;
447 }
448 #endif
449
450 #ifdef linux
451 static char *parse_mount_entries( FILE *f, dev_t dev, ino_t ino )
452 {
453 struct mntent *entry;
454 struct stat st;
455 char *device;
456
457 while ((entry = getmntent( f )))
458 {
459 /* don't even bother stat'ing network mounts, there's no meaningful device anyway */
460 if (!strcmp( entry->mnt_type, "nfs" ) ||
461 !strcmp( entry->mnt_type, "smbfs" ) ||
462 !strcmp( entry->mnt_type, "ncpfs" )) continue;
463
464 if (stat( entry->mnt_dir, &st ) == -1) continue;
465 if (st.st_dev != dev || st.st_ino != ino) continue;
466 if (!strcmp( entry->mnt_type, "supermount" ))
467 {
468 if ((device = strstr( entry->mnt_opts, "dev=" )))
469 {
470 char *p = strchr( device + 4, ',' );
471 if (p) *p = 0;
472 return device + 4;
473 }
474 }
475 else if (!stat( entry->mnt_fsname, &st ) && S_ISREG(st.st_mode))
476 {
477 /* if device is a regular file check for a loop mount */
478 if ((device = strstr( entry->mnt_opts, "loop=" )))
479 {
480 char *p = strchr( device + 5, ',' );
481 if (p) *p = 0;
482 return device + 5;
483 }
484 }
485 else
486 return entry->mnt_fsname;
487 }
488 return NULL;
489 }
490 #endif
491
492 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
493 #include <fstab.h>
494 static char *parse_mount_entries( FILE *f, dev_t dev, ino_t ino )
495 {
496 struct fstab *entry;
497 struct stat st;
498
499 while ((entry = getfsent()))
500 {
501 /* don't even bother stat'ing network mounts, there's no meaningful device anyway */
502 if (!strcmp( entry->fs_vfstype, "nfs" ) ||
503 !strcmp( entry->fs_vfstype, "smbfs" ) ||
504 !strcmp( entry->fs_vfstype, "ncpfs" )) continue;
505
506 if (stat( entry->fs_file, &st ) == -1) continue;
507 if (st.st_dev != dev || st.st_ino != ino) continue;
508 return entry->fs_spec;
509 }
510 return NULL;
511 }
512 #endif
513
514 #ifdef sun
515 #include <sys/mnttab.h>
516 static char *parse_mount_entries( FILE *f, dev_t dev, ino_t ino )
517 {
518 struct mnttab entry;
519 struct stat st;
520 char *device;
521
522
523 while (( ! getmntent( f, &entry) ))
524 {
525 /* don't even bother stat'ing network mounts, there's no meaningful device anyway */
526 if (!strcmp( entry.mnt_fstype, "nfs" ) ||
527 !strcmp( entry.mnt_fstype, "smbfs" ) ||
528 !strcmp( entry.mnt_fstype, "ncpfs" )) continue;
529
530 if (stat( entry.mnt_mountp, &st ) == -1) continue;
531 if (st.st_dev != dev || st.st_ino != ino) continue;
532 if (!strcmp( entry.mnt_fstype, "fd" ))
533 {
534 if ((device = strstr( entry.mnt_mntopts, "dev=" )))
535 {
536 char *p = strchr( device + 4, ',' );
537 if (p) *p = 0;
538 return device + 4;
539 }
540 }
541 else
542 return entry.mnt_special;
543 }
544 return NULL;
545 }
546 #endif
547
548 /***********************************************************************
549 * get_default_drive_device
550 *
551 * Return the default device to use for a given drive mount point.
552 */
553 static char *get_default_drive_device( const char *root )
554 {
555 char *ret = NULL;
556
557 #ifdef linux
558 FILE *f;
559 char *device = NULL;
560 int fd, res = -1;
561 struct stat st;
562
563 /* try to open it first to force it to get mounted */
564 if ((fd = open( root, O_RDONLY | O_DIRECTORY )) != -1)
565 {
566 res = fstat( fd, &st );
567 close( fd );
568 }
569 /* now try normal stat just in case */
570 if (res == -1) res = stat( root, &st );
571 if (res == -1) return NULL;
572
573 RtlEnterCriticalSection( &dir_section );
574
575 if ((f = fopen( "/etc/mtab", "r" )))
576 {
577 device = parse_mount_entries( f, st.st_dev, st.st_ino );
578 endmntent( f );
579 }
580 /* look through fstab too in case it's not mounted (for instance if it's an audio CD) */
581 if (!device && (f = fopen( "/etc/fstab", "r" )))
582 {
583 device = parse_mount_entries( f, st.st_dev, st.st_ino );
584 endmntent( f );
585 }
586 if (device)
587 {
588 ret = RtlAllocateHeap( GetProcessHeap(), 0, strlen(device) + 1 );
589 if (ret) strcpy( ret, device );
590 }
591 RtlLeaveCriticalSection( &dir_section );
592
593 #elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__ )
594 char *device = NULL;
595 int fd, res = -1;
596 struct stat st;
597
598 /* try to open it first to force it to get mounted */
599 if ((fd = open( root, O_RDONLY )) != -1)
600 {
601 res = fstat( fd, &st );
602 close( fd );
603 }
604 /* now try normal stat just in case */
605 if (res == -1) res = stat( root, &st );
606 if (res == -1) return NULL;
607
608 RtlEnterCriticalSection( &dir_section );
609
610 /* The FreeBSD parse_mount_entries doesn't require a file argument, so just
611 * pass NULL. Leave the argument in for symmetry.
612 */
613 device = parse_mount_entries( NULL, st.st_dev, st.st_ino );
614 if (device)
615 {
616 ret = RtlAllocateHeap( GetProcessHeap(), 0, strlen(device) + 1 );
617 if (ret) strcpy( ret, device );
618 }
619 RtlLeaveCriticalSection( &dir_section );
620
621 #elif defined( sun )
622 FILE *f;
623 char *device = NULL;
624 int fd, res = -1;
625 struct stat st;
626
627 /* try to open it first to force it to get mounted */
628 if ((fd = open( root, O_RDONLY )) != -1)
629 {
630 res = fstat( fd, &st );
631 close( fd );
632 }
633 /* now try normal stat just in case */
634 if (res == -1) res = stat( root, &st );
635 if (res == -1) return NULL;
636
637 RtlEnterCriticalSection( &dir_section );
638
639 if ((f = fopen( "/etc/mnttab", "r" )))
640 {
641 device = parse_mount_entries( f, st.st_dev, st.st_ino);
642 fclose( f );
643 }
644 /* look through fstab too in case it's not mounted (for instance if it's an audio CD) */
645 if (!device && (f = fopen( "/etc/vfstab", "r" )))
646 {
647 device = parse_vfstab_entries( f, st.st_dev, st.st_ino );
648 fclose( f );
649 }
650 if (device)
651 {
652 ret = RtlAllocateHeap( GetProcessHeap(), 0, strlen(device) + 1 );
653 if (ret) strcpy( ret, device );
654 }
655 RtlLeaveCriticalSection( &dir_section );
656
657 #elif defined(__APPLE__)
658 struct statfs *mntStat;
659 struct stat st;
660 int i;
661 int mntSize;
662 dev_t dev;
663 ino_t ino;
664 static const char path_bsd_device[] = "/dev/disk";
665 int res;
666
667 res = stat( root, &st );
668 if (res == -1) return NULL;
669
670 dev = st.st_dev;
671 ino = st.st_ino;
672
673 RtlEnterCriticalSection( &dir_section );
674
675 mntSize = getmntinfo(&mntStat, MNT_NOWAIT);
676
677 for (i = 0; i < mntSize && !ret; i++)
678 {
679 if (stat(mntStat[i].f_mntonname, &st ) == -1) continue;
680 if (st.st_dev != dev || st.st_ino != ino) continue;
681
682 /* FIXME add support for mounted network drive */
683 if ( strncmp(mntStat[i].f_mntfromname, path_bsd_device, strlen(path_bsd_device)) == 0)
684 {
685 /* set return value to the corresponding raw BSD node */
686 ret = RtlAllocateHeap( GetProcessHeap(), 0, strlen(mntStat[i].f_mntfromname) + 2 /* 2 : r and \0 */ );
687 if (ret)
688 {
689 strcpy(ret, "/dev/r");
690 strcat(ret, mntStat[i].f_mntfromname+sizeof("/dev/")-1);
691 }
692 }
693 }
694 RtlLeaveCriticalSection( &dir_section );
695 #else
696 static int warned;
697 if (!warned++) FIXME( "auto detection of DOS devices not supported on this platform\n" );
698 #endif
699 return ret;
700 }
701
702
703 /***********************************************************************
704 * get_device_mount_point
705 *
706 * Return the current mount point for a device.
707 */
708 static char *get_device_mount_point( dev_t dev )
709 {
710 char *ret = NULL;
711
712 #ifdef linux
713 FILE *f;
714
715 RtlEnterCriticalSection( &dir_section );
716
717 if ((f = fopen( "/etc/mtab", "r" )))
718 {
719 struct mntent *entry;
720 struct stat st;
721 char *p, *device;
722
723 while ((entry = getmntent( f )))
724 {
725 /* don't even bother stat'ing network mounts, there's no meaningful device anyway */
726 if (!strcmp( entry->mnt_type, "nfs" ) ||
727 !strcmp( entry->mnt_type, "smbfs" ) ||
728 !strcmp( entry->mnt_type, "ncpfs" )) continue;
729
730 if (!strcmp( entry->mnt_type, "supermount" ))
731 {
732 if ((device = strstr( entry->mnt_opts, "dev=" )))
733 {
734 device += 4;
735 if ((p = strchr( device, ',' ))) *p = 0;
736 }
737 }
738 else if (!stat( entry->mnt_fsname, &st ) && S_ISREG(st.st_mode))
739 {
740 /* if device is a regular file check for a loop mount */
741 if ((device = strstr( entry->mnt_opts, "loop=" )))
742 {
743 device += 5;
744 if ((p = strchr( device, ',' ))) *p = 0;
745 }
746 }
747 else device = entry->mnt_fsname;
748
749 if (device && !stat( device, &st ) && S_ISBLK(st.st_mode) && st.st_rdev == dev)
750 {
751 ret = RtlAllocateHeap( GetProcessHeap(), 0, strlen(entry->mnt_dir) + 1 );
752 if (ret) strcpy( ret, entry->mnt_dir );
753 break;
754 }
755 }
756 endmntent( f );
757 }
758 RtlLeaveCriticalSection( &dir_section );
759 #elif defined(__APPLE__)
760 struct statfs *entry;
761 struct stat st;
762 int i, size;
763
764 RtlEnterCriticalSection( &dir_section );
765
766 size = getmntinfo( &entry, MNT_NOWAIT );
767 for (i = 0; i < size; i++)
768 {
769 if (stat( entry[i].f_mntfromname, &st ) == -1) continue;
770 if (S_ISBLK(st.st_mode) && st.st_rdev == dev)
771 {
772 ret = RtlAllocateHeap( GetProcessHeap(), 0, strlen(entry[i].f_mntfromname) + 1 );
773 if (ret) strcpy( ret, entry[i].f_mntfromname );
774 break;
775 }
776 }
777 RtlLeaveCriticalSection( &dir_section );
778 #else
779 static int warned;
780 if (!warned++) FIXME( "unmounting devices not supported on this platform\n" );
781 #endif
782 return ret;
783 }
784
785
786 /***********************************************************************
787 * init_options
788 *
789 * Initialize the show_dot_files options.
790 */
791 static void init_options(void)
792 {
793 static const WCHAR WineW[] = {'S','o','f','t','w','a','r','e','\\','W','i','n','e',0};
794 static const WCHAR ShowDotFilesW[] = {'S','h','o','w','D','o','t','F','i','l','e','s',0};
795 char tmp[80];
796 HANDLE root, hkey;
797 DWORD dummy;
798 OBJECT_ATTRIBUTES attr;
799 UNICODE_STRING nameW;
800
801 show_dot_files = 0;
802
803 RtlOpenCurrentUser( KEY_ALL_ACCESS, &root );
804 attr.Length = sizeof(attr);
805 attr.RootDirectory = root;
806 attr.ObjectName = &nameW;
807 attr.Attributes = 0;
808 attr.SecurityDescriptor = NULL;
809 attr.SecurityQualityOfService = NULL;
810 RtlInitUnicodeString( &nameW, WineW );
811
812 /* @@ Wine registry key: HKCU\Software\Wine */
813 if (!NtOpenKey( &hkey, KEY_ALL_ACCESS, &attr ))
814 {
815 RtlInitUnicodeString( &nameW, ShowDotFilesW );
816 if (!NtQueryValueKey( hkey, &nameW, KeyValuePartialInformation, tmp, sizeof(tmp), &dummy ))
817 {
818 WCHAR *str = (WCHAR *)((KEY_VALUE_PARTIAL_INFORMATION *)tmp)->Data;
819 show_dot_files = IS_OPTION_TRUE( str[0] );
820 }
821 NtClose( hkey );
822 }
823 NtClose( root );
824
825 /* a couple of directories that we don't want to return in directory searches */
826 ignore_file( wine_get_config_dir() );
827 ignore_file( "/dev" );
828 ignore_file( "/proc" );
829 #ifdef linux
830 ignore_file( "/sys" );
831 #endif
832 }
833
834
835 /***********************************************************************
836 * DIR_is_hidden_file
837 *
838 * Check if the specified file should be hidden based on its name and the show dot files option.
839 */
840 BOOL DIR_is_hidden_file( const UNICODE_STRING *name )
841 {
842 WCHAR *p, *end;
843
844 if (show_dot_files == -1) init_options();
845 if (show_dot_files) return FALSE;
846
847 end = p = name->Buffer + name->Length/sizeof(WCHAR);
848 while (p > name->Buffer && IS_SEPARATOR(p[-1])) p--;
849 while (p > name->Buffer && !IS_SEPARATOR(p[-1])) p--;
850 if (p == end || *p != '.') return FALSE;
851 /* make sure it isn't '.' or '..' */
852 if (p + 1 == end) return FALSE;
853 if (p[1] == '.' && p + 2 == end) return FALSE;
854 return TRUE;
855 }
856
857
858 /***********************************************************************
859 * hash_short_file_name
860 *
861 * Transform a Unix file name into a hashed DOS name. If the name is a valid
862 * DOS name, it is converted to upper-case; otherwise it is replaced by a
863 * hashed version that fits in 8.3 format.
864 * 'buffer' must be at least 12 characters long.
865 * Returns length of short name in bytes; short name is NOT null-terminated.
866 */
867 static ULONG hash_short_file_name( const UNICODE_STRING *name, LPWSTR buffer )
868 {
869 static const char hash_chars[32] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ012345";
870
871 LPCWSTR p, ext, end = name->Buffer + name->Length / sizeof(WCHAR);
872 LPWSTR dst;
873 unsigned short hash;
874 int i;
875
876 /* Compute the hash code of the file name */
877 /* If you know something about hash functions, feel free to */
878 /* insert a better algorithm here... */
879 if (!is_case_sensitive)
880 {
881 for (p = name->Buffer, hash = 0xbeef; p < end - 1; p++)
882 hash = (hash<<3) ^ (hash>>5) ^ tolowerW(*p) ^ (tolowerW(p[1]) << 8);
883 hash = (hash<<3) ^ (hash>>5) ^ tolowerW(*p); /* Last character */
884 }
885 else
886 {
887 for (p = name->Buffer, hash = 0xbeef; p < end - 1; p++)
888 hash = (hash << 3) ^ (hash >> 5) ^ *p ^ (p[1] << 8);
889 hash = (hash << 3) ^ (hash >> 5) ^ *p; /* Last character */
890 }
891
892 /* Find last dot for start of the extension */
893 for (p = name->Buffer + 1, ext = NULL; p < end - 1; p++) if (*p == '.') ext = p;
894
895 /* Copy first 4 chars, replacing invalid chars with '_' */
896 for (i = 4, p = name->Buffer, dst = buffer; i > 0; i--, p++)
897 {
898 if (p == end || p == ext) break;
899 *dst++ = is_invalid_dos_char(*p) ? '_' : toupperW(*p);
900 }
901 /* Pad to 5 chars with '~' */
902 while (i-- >= 0) *dst++ = '~';
903
904 /* Insert hash code converted to 3 ASCII chars */
905 *dst++ = hash_chars[(hash >> 10) & 0x1f];
906 *dst++ = hash_chars[(hash >> 5) & 0x1f];
907 *dst++ = hash_chars[hash & 0x1f];
908
909 /* Copy the first 3 chars of the extension (if any) */
910 if (ext)
911 {
912 *dst++ = '.';
913 for (i = 3, ext++; (i > 0) && ext < end; i--, ext++)
914 *dst++ = is_invalid_dos_char(*ext) ? '_' : toupperW(*ext);
915 }
916 return dst - buffer;
917 }
918
919
920 /***********************************************************************
921 * match_filename
922 *
923 * Check a long file name against a mask.
924 *
925 * Tests (done in W95 DOS shell - case insensitive):
926 * *.txt test1.test.txt *
927 * *st1* test1.txt *
928 * *.t??????.t* test1.ta.tornado.txt *
929 * *tornado* test1.ta.tornado.txt *
930 * t*t test1.ta.tornado.txt *
931 * ?est* test1.txt *
932 * ?est??? test1.txt -
933 * *test1.txt* test1.txt *
934 * h?l?o*t.dat hellothisisatest.dat *
935 */
936 static BOOLEAN match_filename( const UNICODE_STRING *name_str, const UNICODE_STRING *mask_str )
937 {
938 int mismatch;
939 const WCHAR *name = name_str->Buffer;
940 const WCHAR *mask = mask_str->Buffer;
941 const WCHAR *name_end = name + name_str->Length / sizeof(WCHAR);
942 const WCHAR *mask_end = mask + mask_str->Length / sizeof(WCHAR);
943 const WCHAR *lastjoker = NULL;
944 const WCHAR *next_to_retry = NULL;
945
946 TRACE("(%s, %s)\n", debugstr_us(name_str), debugstr_us(mask_str));
947
948 while (name < name_end && mask < mask_end)
949 {
950 switch(*mask)
951 {
952 case '*':
953 mask++;
954 while (mask < mask_end && *mask == '*') mask++; /* Skip consecutive '*' */
955 if (mask == mask_end) return TRUE; /* end of mask is all '*', so match */
956 lastjoker = mask;
957
958 /* skip to the next match after the joker(s) */
959 if (is_case_sensitive)
960 while (name < name_end && (*name != *mask)) name++;
961 else
962 while (name < name_end && (toupperW(*name) != toupperW(*mask))) name++;
963 next_to_retry = name;
964 break;
965 case '?':
966 mask++;
967 name++;
968 break;
969 default:
970 if (is_case_sensitive) mismatch = (*mask != *name);
971 else mismatch = (toupperW(*mask) != toupperW(*name));
972
973 if (!mismatch)
974 {
975 mask++;
976 name++;
977 if (mask == mask_end)
978 {
979 if (name == name_end) return TRUE;
980 if (lastjoker) mask = lastjoker;
981 }
982 }
983 else /* mismatch ! */
984 {
985 if (lastjoker) /* we had an '*', so we can try unlimitedly */
986 {
987 mask = lastjoker;
988
989 /* this scan sequence was a mismatch, so restart
990 * 1 char after the first char we checked last time */
991 next_to_retry++;
992 name = next_to_retry;
993 }
994 else return FALSE; /* bad luck */
995 }
996 break;
997 }
998 }
999 while (mask < mask_end && ((*mask == '.') || (*mask == '*')))
1000 mask++; /* Ignore trailing '.' or '*' in mask */
1001 return (name == name_end && mask == mask_end);
1002 }
1003
1004
1005 /***********************************************************************
1006 * append_entry
1007 *
1008 * helper for NtQueryDirectoryFile
1009 */
1010 static union file_directory_info *append_entry( void *info_ptr, IO_STATUS_BLOCK *io, ULONG max_length,
1011 const char *long_name, const char *short_name,
1012 const UNICODE_STRING *mask, FILE_INFORMATION_CLASS class )
1013 {
1014 union file_directory_info *info;
1015 int i, long_len, short_len, total_len;
1016 struct stat st;
1017 WCHAR long_nameW[MAX_DIR_ENTRY_LEN];
1018 WCHAR short_nameW[12];
1019 WCHAR *filename;
1020 UNICODE_STRING str;
1021 ULONG attributes = 0;
1022
1023 io->u.Status = STATUS_SUCCESS;
1024 long_len = ntdll_umbstowcs( 0, long_name, strlen(long_name), long_nameW, MAX_DIR_ENTRY_LEN );
1025 if (long_len == -1) return NULL;
1026
1027 str.Buffer = long_nameW;
1028 str.Length = long_len * sizeof(WCHAR);
1029 str.MaximumLength = sizeof(long_nameW);
1030
1031 if (short_name)
1032 {
1033 short_len = ntdll_umbstowcs( 0, short_name, strlen(short_name),
1034 short_nameW, sizeof(short_nameW) / sizeof(WCHAR) );
1035 if (short_len == -1) short_len = sizeof(short_nameW) / sizeof(WCHAR);
1036 }
1037 else /* generate a short name if necessary */
1038 {
1039 BOOLEAN spaces;
1040
1041 short_len = 0;
1042 if (!RtlIsNameLegalDOS8Dot3( &str, NULL, &spaces ) || spaces)
1043 short_len = hash_short_file_name( &str, short_nameW );
1044 }
1045
1046 TRACE( "long %s short %s mask %s\n",
1047 debugstr_us(&str), debugstr_wn(short_nameW, short_len), debugstr_us(mask) );
1048
1049 if (mask && !match_filename( &str, mask ))
1050 {
1051 if (!short_len) return NULL; /* no short name to match */
1052 str.Buffer = short_nameW;
1053 str.Length = short_len * sizeof(WCHAR);
1054 str.MaximumLength = sizeof(short_nameW);
1055 if (!match_filename( &str, mask )) return NULL;
1056 }
1057
1058 if (lstat( long_name, &st ) == -1) return NULL;
1059 if (S_ISLNK( st.st_mode ))
1060 {
1061 if (stat( long_name, &st ) == -1) return NULL;
1062 if (S_ISDIR( st.st_mode )) attributes |= FILE_ATTRIBUTE_REPARSE_POINT;
1063 }
1064 if (is_ignored_file( &st ))
1065 {
1066 TRACE( "ignoring file %s\n", long_name );
1067 return NULL;
1068 }
1069 if (!show_dot_files && long_name[0] == '.' && long_name[1] && (long_name[1] != '.' || long_name[2]))
1070 attributes |= FILE_ATTRIBUTE_HIDDEN;
1071
1072 total_len = dir_info_size( class, long_len );
1073 if (io->Information + total_len > max_length)
1074 {
1075 total_len = max_length - io->Information;
1076 io->u.Status = STATUS_BUFFER_OVERFLOW;
1077 }
1078 info = (union file_directory_info *)((char *)info_ptr + io->Information);
1079 if (st.st_dev != curdir.dev) st.st_ino = 0; /* ignore inode if on a different device */
1080 /* all the structures start with a FileDirectoryInformation layout */
1081 fill_stat_info( &st, info, class );
1082 info->dir.NextEntryOffset = total_len;
1083 info->dir.FileIndex = 0; /* NTFS always has 0 here, so let's not bother with it */
1084 info->dir.FileAttributes |= attributes;
1085
1086 switch (class)
1087 {
1088 case FileDirectoryInformation:
1089 info->dir.FileNameLength = long_len * sizeof(WCHAR);
1090 filename = info->dir.FileName;
1091 break;
1092
1093 case FileFullDirectoryInformation:
1094 info->full.EaSize = 0; /* FIXME */
1095 info->full.FileNameLength = long_len * sizeof(WCHAR);
1096 filename = info->full.FileName;
1097 break;
1098
1099 case FileIdFullDirectoryInformation:
1100 info->id_full.EaSize = 0; /* FIXME */
1101 info->id_full.FileNameLength = long_len * sizeof(WCHAR);
1102 filename = info->id_full.FileName;
1103 break;
1104
1105 case FileBothDirectoryInformation:
1106 info->both.EaSize = 0; /* FIXME */
1107 info->both.ShortNameLength = short_len * sizeof(WCHAR);
1108 for (i = 0; i < short_len; i++) info->both.ShortName[i] = toupperW(short_nameW[i]);
1109 info->both.FileNameLength = long_len * sizeof(WCHAR);
1110 filename = info->both.FileName;
1111 break;
1112
1113 case FileIdBothDirectoryInformation:
1114 info->id_both.EaSize = 0; /* FIXME */
1115 info->id_both.ShortNameLength = short_len * sizeof(WCHAR);
1116 for (i = 0; i < short_len; i++) info->id_both.ShortName[i] = toupperW(short_nameW[i]);
1117 info->id_both.FileNameLength = long_len * sizeof(WCHAR);
1118 filename = info->id_both.FileName;
1119 break;
1120
1121 default:
1122 assert(0);
1123 return NULL;
1124 }
1125 memcpy( filename, long_nameW, total_len - ((char *)filename - (char *)info) );
1126 io->Information += total_len;
1127 return info;
1128 }
1129
1130
1131 #ifdef VFAT_IOCTL_READDIR_BOTH
1132
1133 /***********************************************************************
1134 * start_vfat_ioctl
1135 *
1136 * Wrapper for the VFAT ioctl to work around various kernel bugs.
1137 * dir_section must be held by caller.
1138 */
1139 static KERNEL_DIRENT *start_vfat_ioctl( int fd )
1140 {
1141 static KERNEL_DIRENT *de;
1142 int res;
1143
1144 if (!de)
1145 {
1146 const size_t page_size = getpagesize();
1147 SIZE_T size = 2 * sizeof(*de) + page_size;
1148 void *addr = NULL;
1149
1150 if (NtAllocateVirtualMemory( GetCurrentProcess(), &addr, 1, &size, MEM_RESERVE, PAGE_READWRITE ))
1151 return NULL;
1152 /* commit only the size needed for the dir entries */
1153 /* this leaves an extra unaccessible page, which should make the kernel */
1154 /* fail with -EFAULT before it stomps all over our memory */
1155 de = addr;
1156 size = 2 * sizeof(*de);
1157 NtAllocateVirtualMemory( GetCurrentProcess(), &addr, 1, &size, MEM_COMMIT, PAGE_READWRITE );
1158 }
1159
1160 /* set d_reclen to 65535 to work around an AFS kernel bug */
1161 de[0].d_reclen = 65535;
1162 res = ioctl( fd, VFAT_IOCTL_READDIR_BOTH, (long)de );
1163 if (res == -1)
1164 {
1165 if (errno != ENOENT) return NULL; /* VFAT ioctl probably not supported */
1166 de[0].d_reclen = 0; /* eof */
1167 }
1168 else if (!res && de[0].d_reclen == 65535) return NULL; /* AFS bug */
1169
1170 return de;
1171 }
1172
1173
1174 /***********************************************************************
1175 * read_directory_vfat
1176 *
1177 * Read a directory using the VFAT ioctl; helper for NtQueryDirectoryFile.
1178 */
1179 static int read_directory_vfat( int fd, IO_STATUS_BLOCK *io, void *buffer, ULONG length,
1180 BOOLEAN single_entry, const UNICODE_STRING *mask,
1181 BOOLEAN restart_scan, FILE_INFORMATION_CLASS class )
1182
1183 {
1184 size_t len;
1185 KERNEL_DIRENT *de;
1186 union file_directory_info *info, *last_info = NULL;
1187
1188 io->u.Status = STATUS_SUCCESS;
1189
1190 if (restart_scan) lseek( fd, 0, SEEK_SET );
1191
1192 if (length < max_dir_info_size(class)) /* we may have to return a partial entry here */
1193 {
1194 off_t old_pos = lseek( fd, 0, SEEK_CUR );
1195
1196 if (!(de = start_vfat_ioctl( fd ))) return -1; /* not supported */
1197
1198 while (de[0].d_reclen)
1199 {
1200 /* make sure names are null-terminated to work around an x86-64 kernel bug */
1201 len = min(de[0].d_reclen, sizeof(de[0].d_name) - 1 );
1202 de[0].d_name[len] = 0;
1203 len = min(de[1].d_reclen, sizeof(de[1].d_name) - 1 );
1204 de[1].d_name[len] = 0;
1205
1206 if (de[1].d_name[0])
1207 info = append_entry( buffer, io, length, de[1].d_name, de[0].d_name, mask, class );
1208 else
1209 info = append_entry( buffer, io, length, de[0].d_name, NULL, mask, class );
1210 if (info)
1211 {
1212 last_info = info;
1213 if (io->u.Status == STATUS_BUFFER_OVERFLOW)
1214 lseek( fd, old_pos, SEEK_SET ); /* restore pos to previous entry */
1215 break;
1216 }
1217 old_pos = lseek( fd, 0, SEEK_CUR );
1218 if (ioctl( fd, VFAT_IOCTL_READDIR_BOTH, (long)de ) == -1) break;
1219 }
1220 }
1221 else /* we'll only return full entries, no need to worry about overflow */
1222 {
1223 if (!(de = start_vfat_ioctl( fd ))) return -1; /* not supported */
1224
1225 while (de[0].d_reclen)
1226 {
1227 /* make sure names are null-terminated to work around an x86-64 kernel bug */
1228 len = min(de[0].d_reclen, sizeof(de[0].d_name) - 1 );
1229 de[0].d_name[len] = 0;
1230 len = min(de[1].d_reclen, sizeof(de[1].d_name) - 1 );
1231 de[1].d_name[len] = 0;
1232
1233 if (de[1].d_name[0])
1234 info = append_entry( buffer, io, length, de[1].d_name, de[0].d_name, mask, class );
1235 else
1236 info = append_entry( buffer, io, length, de[0].d_name, NULL, mask, class );
1237 if (info)
1238 {
1239 last_info = info;
1240 if (single_entry) break;
1241 /* check if we still have enough space for the largest possible entry */
1242 if (io->Information + max_dir_info_size(class) > length) break;
1243 }
1244 if (ioctl( fd, VFAT_IOCTL_READDIR_BOTH, (long)de ) == -1) break;
1245 }
1246 }
1247
1248 if (last_info) last_info->next = 0;
1249 else io->u.Status = restart_scan ? STATUS_NO_SUCH_FILE : STATUS_NO_MORE_FILES;
1250 return 0;
1251 }
1252 #endif /* VFAT_IOCTL_READDIR_BOTH */
1253
1254
1255 /***********************************************************************
1256 * read_directory_getdents
1257 *
1258 * Read a directory using the Linux getdents64 system call; helper for NtQueryDirectoryFile.
1259 */
1260 #ifdef USE_GETDENTS
1261 static int read_directory_getdents( int fd, IO_STATUS_BLOCK *io, void *buffer, ULONG length,
1262 BOOLEAN single_entry, const UNICODE_STRING *mask,
1263 BOOLEAN restart_scan, FILE_INFORMATION_CLASS class )
1264 {
1265 off_t old_pos = 0;
1266 size_t size = length;
1267 int res, fake_dot_dot = 1;
1268 char *data, local_buffer[8192];
1269 KERNEL_DIRENT64 *de;
1270 union file_directory_info *info, *last_info = NULL;
1271
1272 if (size <= sizeof(local_buffer) || !(data = RtlAllocateHeap( GetProcessHeap(), 0, size )))
1273 {
1274 size = sizeof(local_buffer);
1275 data = local_buffer;
1276 }
1277
1278 if (restart_scan) lseek( fd, 0, SEEK_SET );
1279 else if (length < max_dir_info_size(class)) /* we may have to return a partial entry here */
1280 {
1281 old_pos = lseek( fd, 0, SEEK_CUR );
1282 if (old_pos == -1 && errno == ENOENT)
1283 {
1284 io->u.Status = STATUS_NO_MORE_FILES;
1285 res = 0;
1286 goto done;
1287 }
1288 }
1289
1290 io->u.Status = STATUS_SUCCESS;
1291
1292 res = getdents64( fd, data, size );
1293 if (res == -1)
1294 {
1295 if (errno != ENOSYS)
1296 {
1297 io->u.Status = FILE_GetNtStatus();
1298 res = 0;
1299 }
1300 goto done;
1301 }
1302
1303 de = (KERNEL_DIRENT64 *)data;
1304
1305 if (restart_scan)
1306 {
1307 /* check if we got . and .. from getdents */
1308 if (res > 0)
1309 {
1310 if (!strcmp( de->d_name, "." ) && res > de->d_reclen)
1311 {
1312 KERNEL_DIRENT64 *next_de = (KERNEL_DIRENT64 *)(data + de->d_reclen);
1313 if (!strcmp( next_de->d_name, ".." )) fake_dot_dot = 0;
1314 }
1315 }
1316 /* make sure we have enough room for both entries */
1317 if (fake_dot_dot)
1318 {
1319 const ULONG min_info_size = dir_info_size( class, 1 ) + dir_info_size( class, 2 );
1320 if (length < min_info_size || single_entry)
1321 {
1322 FIXME( "not enough room %u/%u for fake . and .. entries\n", length, single_entry );
1323 fake_dot_dot = 0;
1324 }
1325 }
1326
1327 if (fake_dot_dot)
1328 {
1329 if ((info = append_entry( buffer, io, length, ".", NULL, mask, class )))
1330 last_info = info;
1331 if ((info = append_entry( buffer, io, length, "..", NULL, mask, class )))
1332 last_info = info;
1333
1334 /* check if we still have enough space for the largest possible entry */
1335 if (last_info && io->Information + max_dir_info_size(class) > length)
1336 {
1337 lseek( fd, 0, SEEK_SET ); /* reset pos to first entry */
1338 res = 0;
1339 }
1340 }
1341 }
1342
1343 while (res > 0)
1344 {
1345 res -= de->d_reclen;
1346 if (de->d_ino &&
1347 !(fake_dot_dot && (!strcmp( de->d_name, "." ) || !strcmp( de->d_name, ".." ))) &&
1348 (info = append_entry( buffer, io, length, de->d_name, NULL, mask, class )))
1349 {
1350 last_info = info;
1351 if (io->u.Status == STATUS_BUFFER_OVERFLOW)
1352 {
1353 lseek( fd, old_pos, SEEK_SET ); /* restore pos to previous entry */
1354 break;
1355 }
1356 /* check if we still have enough space for the largest possible entry */
1357 if (single_entry || io->Information + max_dir_info_size(class) > length)
1358 {
1359 if (res > 0) lseek( fd, de->d_off, SEEK_SET ); /* set pos to next entry */
1360 break;
1361 }
1362 }
1363 old_pos = de->d_off;
1364 /* move on to the next entry */
1365 if (res > 0) de = (KERNEL_DIRENT64 *)((char *)de + de->d_reclen);
1366 else
1367 {
1368 res = getdents64( fd, data, size );
1369 de = (KERNEL_DIRENT64 *)data;
1370 }
1371 }
1372
1373 if (last_info) last_info->next = 0;
1374 else io->u.Status = restart_scan ? STATUS_NO_SUCH_FILE : STATUS_NO_MORE_FILES;
1375 res = 0;
1376 done:
1377 if (data != local_buffer) RtlFreeHeap( GetProcessHeap(), 0, data );
1378 return res;
1379 }
1380
1381 #elif defined HAVE_GETDIRENTRIES
1382
1383 #ifdef _DARWIN_FEATURE_64_BIT_INODE
1384
1385 /* Darwin doesn't provide a version of getdirentries with support for 64-bit
1386 * inodes. When 64-bit inodes are enabled, the getdirentries symbol is mapped
1387 * to _getdirentries_is_not_available_when_64_bit_inodes_are_in_effect so that
1388 * we get link errors if we try to use it. We still need getdirentries, but we
1389 * don't need it to support 64-bit inodes. So, we use the legacy getdirentries
1390 * with 32-bit inodes. We have to be careful to use a corresponding dirent
1391 * structure, too.
1392 */
1393 int darwin_legacy_getdirentries(int, char *, int, long *) __asm("_getdirentries");
1394 #define getdirentries darwin_legacy_getdirentries
1395
1396 struct darwin_legacy_dirent {
1397 __uint32_t d_ino;
1398 __uint16_t d_reclen;
1399 __uint8_t d_type;
1400 __uint8_t d_namlen;
1401 char d_name[__DARWIN_MAXNAMLEN + 1];
1402 };
1403 #define dirent darwin_legacy_dirent
1404
1405 #endif
1406
1407 /***********************************************************************
1408 * wine_getdirentries
1409 *
1410 * Wrapper for the BSD getdirentries system call to fix a bug in the
1411 * Mac OS X version. For some file systems (at least Apple Filing
1412 * Protocol a.k.a. AFP), getdirentries resets the file position to 0
1413 * when it's about to return 0 (no more entries). So, a subsequent
1414 * getdirentries call starts over at the beginning again, causing an
1415 * infinite loop.
1416 */
1417 static inline int wine_getdirentries(int fd, char *buf, int nbytes, long *basep)
1418 {
1419 int res = getdirentries(fd, buf, nbytes, basep);
1420 #ifdef __APPLE__
1421 if (res == 0)
1422 lseek(fd, *basep, SEEK_SET);
1423 #endif
1424 return res;
1425 }
1426
1427 /***********************************************************************
1428 * read_directory_getdirentries
1429 *
1430 * Read a directory using the BSD getdirentries system call; helper for NtQueryDirectoryFile.
1431 */
1432 static int read_directory_getdirentries( int fd, IO_STATUS_BLOCK *io, void *buffer, ULONG length,
1433 BOOLEAN single_entry, const UNICODE_STRING *mask,
1434 BOOLEAN restart_scan, FILE_INFORMATION_CLASS class )
1435 {
1436 long restart_pos;
1437 ULONG_PTR restart_info_pos = 0;
1438 size_t size, initial_size = length;
1439 int res, fake_dot_dot = 1;
1440 char *data, local_buffer[8192];
1441 struct dirent *de;
1442 union file_directory_info *info, *last_info = NULL, *restart_last_info = NULL;
1443
1444 size = initial_size;
1445 data = local_buffer;
1446 if (size > sizeof(local_buffer) && !(data = RtlAllocateHeap( GetProcessHeap(), 0, size )))
1447 {
1448 io->u.Status = STATUS_NO_MEMORY;
1449 return io->u.Status;
1450 }
1451
1452 if (restart_scan) lseek( fd, 0, SEEK_SET );
1453
1454 io->u.Status = STATUS_SUCCESS;
1455
1456 /* FIXME: should make sure size is larger than filesystem block size */
1457 res = wine_getdirentries( fd, data, size, &restart_pos );
1458 if (res == -1)
1459 {
1460 io->u.Status = FILE_GetNtStatus();
1461 res = 0;
1462 goto done;
1463 }
1464
1465 de = (struct dirent *)data;
1466
1467 if (restart_scan)
1468 {
1469 /* check if we got . and .. from getdirentries */
1470 if (res > 0)
1471 {
1472 if (!strcmp( de->d_name, "." ) && res > de->d_reclen)
1473 {
1474 struct dirent *next_de = (struct dirent *)(data + de->d_reclen);
1475 if (!strcmp( next_de->d_name, ".." )) fake_dot_dot = 0;
1476 }
1477 }
1478 /* make sure we have enough room for both entries */
1479 if (fake_dot_dot)
1480 {
1481 const ULONG min_info_size = dir_info_size( class, 1 ) + dir_info_size( class, 2 );
1482 if (length < min_info_size || single_entry)
1483 {
1484 FIXME( "not enough room %u/%u for fake . and .. entries\n", length, single_entry );
1485 fake_dot_dot = 0;
1486 }
1487 }
1488
1489 if (fake_dot_dot)
1490 {
1491 if ((info = append_entry( buffer, io, length, ".", NULL, mask, class )))
1492 last_info = info;
1493 if ((info = append_entry( buffer, io, length, "..", NULL, mask, class )))
1494 last_info = info;
1495
1496 restart_last_info = last_info;
1497 restart_info_pos = io->Information;
1498
1499 /* check if we still have enough space for the largest possible entry */
1500 if (last_info && io->Information + max_dir_info_size(class) > length)
1501 {
1502 lseek( fd, 0, SEEK_SET ); /* reset pos to first entry */
1503 res = 0;
1504 }
1505 }
1506 }
1507
1508 while (res > 0)
1509 {
1510 res -= de->d_reclen;
1511 if (de->d_fileno &&
1512 !(fake_dot_dot && (!strcmp( de->d_name, "." ) || !strcmp( de->d_name, ".." ))) &&
1513 ((info = append_entry( buffer, io, length, de->d_name, NULL, mask, class ))))
1514 {
1515 last_info = info;
1516 if (io->u.Status == STATUS_BUFFER_OVERFLOW)
1517 {
1518 lseek( fd, (unsigned long)restart_pos, SEEK_SET );
1519 if (restart_info_pos) /* if we have a complete read already, return it */
1520 {
1521 io->u.Status = STATUS_SUCCESS;
1522 io->Information = restart_info_pos;
1523 last_info = restart_last_info;
1524 break;
1525 }
1526 /* otherwise restart from the start with a smaller size */
1527 size = (char *)de - data;
1528 if (!size) break;
1529 io->Information = 0;
1530 last_info = NULL;
1531 goto restart;
1532 }
1533 /* if we have to return but the buffer contains more data, restart with a smaller size */
1534 if (res > 0 && (single_entry || io->Information + max_dir_info_size(class) > length))
1535 {
1536 lseek( fd, (unsigned long)restart_pos, SEEK_SET );
1537 size = (char *)de - data;
1538 io->Information = restart_info_pos;
1539 last_info = restart_last_info;
1540 goto restart;
1541 }
1542 }
1543 /* move on to the next entry */
1544 if (res > 0)
1545 {
1546 de = (struct dirent *)((char *)de + de->d_reclen);
1547 continue;
1548 }
1549 if (size < initial_size) break; /* already restarted once, give up now */
1550 size = min( size, length - io->Information );
1551 /* if size is too small don't bother to continue */
1552 if (size < max_dir_info_size(class) && last_info) break;
1553 restart_last_info = last_info;
1554 restart_info_pos = io->Information;
1555 restart:
1556 res = wine_getdirentries( fd, data, size, &restart_pos );
1557 de = (struct dirent *)data;
1558 }
1559
1560 if (last_info) last_info->next = 0;
1561 else io->u.Status = restart_scan ? STATUS_NO_SUCH_FILE : STATUS_NO_MORE_FILES;
1562 res = 0;
1563 done:
1564 if (data != local_buffer) RtlFreeHeap( GetProcessHeap(), 0, data );
1565 return res;
1566 }
1567
1568 #ifdef _DARWIN_FEATURE_64_BIT_INODE
1569 #undef getdirentries
1570 #undef dirent
1571 #endif
1572
1573 #endif /* HAVE_GETDIRENTRIES */
1574
1575
1576 /***********************************************************************
1577 * read_directory_readdir
1578 *
1579 * Read a directory using the POSIX readdir interface; helper for NtQueryDirectoryFile.
1580 */
1581 static void read_directory_readdir( int fd, IO_STATUS_BLOCK *io, void *buffer, ULONG length,
1582 BOOLEAN single_entry, const UNICODE_STRING *mask,
1583 BOOLEAN restart_scan, FILE_INFORMATION_CLASS class )
1584 {
1585 DIR *dir;
1586 off_t i, old_pos = 0;
1587 struct dirent *de;
1588 union file_directory_info *info, *last_info = NULL;
1589
1590 if (!(dir = opendir( "." )))
1591 {
1592 io->u.Status = FILE_GetNtStatus();
1593 return;
1594 }
1595
1596 if (!restart_scan)
1597 {
1598 old_pos = lseek( fd, 0, SEEK_CUR );
1599 /* skip the right number of entries */
1600 for (i = 0; i < old_pos - 2; i++)
1601 {
1602 if (!readdir( dir ))
1603 {
1604 closedir( dir );
1605 io->u.Status = STATUS_NO_MORE_FILES;
1606 return;
1607 }
1608 }
1609 }
1610 io->u.Status = STATUS_SUCCESS;
1611
1612 for (;;)
1613 {
1614 if (old_pos == 0)
1615 info = append_entry( buffer, io, length, ".", NULL, mask, class );
1616 else if (old_pos == 1)
1617 info = append_entry( buffer, io, length, "..", NULL, mask, class );
1618 else if ((de = readdir( dir )))
1619 {
1620 if (strcmp( de->d_name, "." ) && strcmp( de->d_name, ".." ))
1621 info = append_entry( buffer, io, length, de->d_name, NULL, mask, class );
1622 else
1623 info = NULL;
1624 }
1625 else
1626 break;
1627 old_pos++;
1628 if (info)
1629 {
1630 last_info = info;
1631 if (io->u.Status == STATUS_BUFFER_OVERFLOW)
1632 {
1633 old_pos--; /* restore pos to previous entry */
1634 break;
1635 }
1636 if (single_entry) break;
1637 /* check if we still have enough space for the largest possible entry */
1638 if (io->Information + max_dir_info_size(class) > length) break;
1639 }
1640 }
1641
1642 lseek( fd, old_pos, SEEK_SET ); /* store dir offset as filepos for fd */
1643 closedir( dir );
1644
1645 if (last_info) last_info->next = 0;
1646 else io->u.Status = restart_scan ? STATUS_NO_SUCH_FILE : STATUS_NO_MORE_FILES;
1647 }
1648
1649 /***********************************************************************
1650 * read_directory_stat
1651 *
1652 * Read a single file from a directory by determining whether the file
1653 * identified by mask exists using stat.
1654 */
1655 static int read_directory_stat( int fd, IO_STATUS_BLOCK *io, void *buffer, ULONG length,
1656 BOOLEAN single_entry, const UNICODE_STRING *mask,
1657 BOOLEAN restart_scan, FILE_INFORMATION_CLASS class )
1658 {
1659 int unix_len, ret, used_default;
1660 char *unix_name;
1661 struct stat st;
1662
1663 TRACE("trying optimisation for file %s\n", debugstr_us( mask ));
1664
1665 unix_len = ntdll_wcstoumbs( 0, mask->Buffer, mask->Length / sizeof(WCHAR), NULL, 0, NULL, NULL );
1666 if (!(unix_name = RtlAllocateHeap( GetProcessHeap(), 0, unix_len + 1)))
1667 {
1668 io->u.Status = STATUS_NO_MEMORY;
1669 return 0;
1670 }
1671 ret = ntdll_wcstoumbs( 0, mask->Buffer, mask->Length / sizeof(WCHAR), unix_name, unix_len,
1672 NULL, &used_default );
1673 if (ret > 0 && !used_default)
1674 {
1675 unix_name[ret] = 0;
1676 if (restart_scan)
1677 {
1678 lseek( fd, 0, SEEK_SET );
1679 }
1680 else if (lseek( fd, 0, SEEK_CUR ) != 0)
1681 {
1682 io->u.Status = STATUS_NO_MORE_FILES;
1683 ret = 0;
1684 goto done;
1685 }
1686
1687 ret = stat( unix_name, &st );
1688 if (!ret)
1689 {
1690 union file_directory_info *info = append_entry( buffer, io, length, unix_name, NULL, NULL, class );
1691 if (info)
1692 {
1693 info->next = 0;
1694 if (io->u.Status != STATUS_BUFFER_OVERFLOW) lseek( fd, 1, SEEK_CUR );
1695 }
1696 else io->u.Status = STATUS_NO_MORE_FILES;
1697 }
1698 }
1699 else ret = -1;
1700
1701 done:
1702 RtlFreeHeap( GetProcessHeap(), 0, unix_name );
1703
1704 TRACE("returning %d\n", ret);
1705
1706 return ret;
1707 }
1708
1709
1710 static inline WCHAR *mempbrkW( const WCHAR *ptr, const WCHAR *accept, size_t n )
1711 {
1712 const WCHAR *end;
1713 for (end = ptr + n; ptr < end; ptr++) if (strchrW( accept, *ptr )) return (WCHAR *)ptr;
1714 return NULL;
1715 }
1716
1717 /******************************************************************************
1718 * NtQueryDirectoryFile [NTDLL.@]
1719 * ZwQueryDirectoryFile [NTDLL.@]
1720 */
1721 NTSTATUS WINAPI NtQueryDirectoryFile( HANDLE handle, HANDLE event,
1722 PIO_APC_ROUTINE apc_routine, PVOID apc_context,
1723 PIO_STATUS_BLOCK io,
1724 PVOID buffer, ULONG length,
1725 FILE_INFORMATION_CLASS info_class,
1726 BOOLEAN single_entry,
1727 PUNICODE_STRING mask,
1728 BOOLEAN restart_scan )
1729 {
1730 int cwd, fd, needs_close;
1731 static const WCHAR wszWildcards[] = { '*','?',0 };
1732
1733 TRACE("(%p %p %p %p %p %p 0x%08x 0x%08x 0x%08x %s 0x%08x\n",
1734 handle, event, apc_routine, apc_context, io, buffer,
1735 length, info_class, single_entry, debugstr_us(mask),
1736 restart_scan);
1737
1738 if (event || apc_routine)
1739 {
1740 FIXME( "Unsupported yet option\n" );
1741 return io->u.Status = STATUS_NOT_IMPLEMENTED;
1742 }
1743 switch (info_class)
1744 {
1745 case FileDirectoryInformation:
1746 case FileBothDirectoryInformation:
1747 case FileFullDirectoryInformation:
1748 case FileIdBothDirectoryInformation:
1749 case FileIdFullDirectoryInformation:
1750 if (length < dir_info_size( info_class, 1 )) return io->u.Status = STATUS_INFO_LENGTH_MISMATCH;
1751 break;
1752 default:
1753 FIXME( "Unsupported file info class %d\n", info_class );
1754 return io->u.Status = STATUS_NOT_IMPLEMENTED;
1755 }
1756
1757 if ((io->u.Status = server_get_unix_fd( handle, FILE_LIST_DIRECTORY, &fd, &needs_close, NULL, NULL )) != STATUS_SUCCESS)
1758 return io->u.Status;
1759
1760 io->Information = 0;
1761
1762 RtlEnterCriticalSection( &dir_section );
1763
1764 if (show_dot_files == -1) init_options();
1765
1766 cwd = open( ".", O_RDONLY );
1767 if (fchdir( fd ) != -1)
1768 {
1769 struct stat st;
1770 fstat( fd, &st );
1771 curdir.dev = st.st_dev;
1772 curdir.ino = st.st_ino;
1773 #ifdef VFAT_IOCTL_READDIR_BOTH
1774 if ((read_directory_vfat( fd, io, buffer, length, single_entry,
1775 mask, restart_scan, info_class )) != -1) goto done;
1776 #endif
1777 if (mask && !mempbrkW( mask->Buffer, wszWildcards, mask->Length / sizeof(WCHAR) ) &&
1778 read_directory_stat( fd, io, buffer, length, single_entry,
1779 mask, restart_scan, info_class ) != -1) goto done;
1780 #ifdef USE_GETDENTS
1781 if ((read_directory_getdents( fd, io, buffer, length, single_entry,
1782 mask, restart_scan, info_class )) != -1) goto done;
1783 #elif defined HAVE_GETDIRENTRIES
1784 if ((read_directory_getdirentries( fd, io, buffer, length, single_entry,
1785 mask, restart_scan, info_class )) != -1) goto done;
1786 #endif
1787 read_directory_readdir( fd, io, buffer, length, single_entry, mask, restart_scan, info_class );
1788
1789 done:
1790 if (cwd == -1 || fchdir( cwd ) == -1) chdir( "/" );
1791 }
1792 else io->u.Status = FILE_GetNtStatus();
1793
1794 RtlLeaveCriticalSection( &dir_section );
1795
1796 if (needs_close) close( fd );
1797 if (cwd != -1) close( cwd );
1798 TRACE( "=> %x (%ld)\n", io->u.Status, io->Information );
1799 return io->u.Status;
1800 }
1801
1802
1803 /***********************************************************************
1804 * find_file_in_dir
1805 *
1806 * Find a file in a directory the hard way, by doing a case-insensitive search.
1807 * The file found is appended to unix_name at pos.
1808 * There must be at least MAX_DIR_ENTRY_LEN+2 chars available at pos.
1809 */
1810 static NTSTATUS find_file_in_dir( char *unix_name, int pos, const WCHAR *name, int length,
1811 int check_case, int *is_win_dir )
1812 {
1813 WCHAR buffer[MAX_DIR_ENTRY_LEN];
1814 UNICODE_STRING str;
1815 BOOLEAN spaces;
1816 DIR *dir;
1817 struct dirent *de;
1818 struct stat st;
1819 int ret, used_default, is_name_8_dot_3;
1820
1821 /* try a shortcut for this directory */
1822
1823 unix_name[pos++] = '/';
1824 ret = ntdll_wcstoumbs( 0, name, length, unix_name + pos, MAX_DIR_ENTRY_LEN,
1825 NULL, &used_default );
1826 /* if we used the default char, the Unix name won't round trip properly back to Unicode */
1827 /* so it cannot match the file we are looking for */
1828 if (ret >= 0 && !used_default)
1829 {
1830 unix_name[pos + ret] = 0;
1831 if (!stat( unix_name, &st ))
1832 {
1833 if (is_win_dir) *is_win_dir = is_same_file( &windir, &st );
1834 return STATUS_SUCCESS;
1835 }
1836 }
1837 if (check_case) goto not_found; /* we want an exact match */
1838
1839 if (pos > 1) unix_name[pos - 1] = 0;
1840 else unix_name[1] = 0; /* keep the initial slash */
1841
1842 /* check if it fits in 8.3 so that we don't look for short names if we won't need them */
1843
1844 str.Buffer = (WCHAR *)name;
1845 str.Length = length * sizeof(WCHAR);
1846 str.MaximumLength = str.Length;
1847 is_name_8_dot_3 = RtlIsNameLegalDOS8Dot3( &str, NULL, &spaces ) && !spaces;
1848
1849 /* now look for it through the directory */
1850
1851 #ifdef VFAT_IOCTL_READDIR_BOTH
1852 if (is_name_8_dot_3)
1853 {
1854 int fd = open( unix_name, O_RDONLY | O_DIRECTORY );
1855 if (fd != -1)
1856 {
1857 KERNEL_DIRENT *de;
1858
1859 RtlEnterCriticalSection( &dir_section );
1860 if ((de = start_vfat_ioctl( fd )))
1861 {
1862 unix_name[pos - 1] = '/';
1863 while (de[0].d_reclen)
1864 {
1865 /* make sure names are null-terminated to work around an x86-64 kernel bug */
1866 size_t len = min(de[0].d_reclen, sizeof(de[0].d_name) - 1 );
1867 de[0].d_name[len] = 0;
1868 len = min(de[1].d_reclen, sizeof(de[1].d_name) - 1 );
1869 de[1].d_name[len] = 0;
1870
1871 if (de[1].d_name[0])
1872 {
1873 ret = ntdll_umbstowcs( 0, de[1].d_name, strlen(de[1].d_name),
1874 buffer, MAX_DIR_ENTRY_LEN );
1875 if (ret == length && !memicmpW( buffer, name, length))
1876 {
1877 strcpy( unix_name + pos, de[1].d_name );
1878 RtlLeaveCriticalSection( &dir_section );
1879 close( fd );
1880 goto success;
1881 }
1882 }
1883 ret = ntdll_umbstowcs( 0, de[0].d_name, strlen(de[0].d_name),
1884 buffer, MAX_DIR_ENTRY_LEN );
1885 if (ret == length && !memicmpW( buffer, name, length))
1886 {
1887 strcpy( unix_name + pos,
1888 de[1].d_name[0] ? de[1].d_name : de[0].d_name );
1889 RtlLeaveCriticalSection( &dir_section );
1890 close( fd );
1891 goto success;
1892 }
1893 if (ioctl( fd, VFAT_IOCTL_READDIR_BOTH, (long)de ) == -1)
1894 {
1895 RtlLeaveCriticalSection( &dir_section );
1896 close( fd );
1897 goto not_found;
1898 }
1899 }
1900 }
1901 RtlLeaveCriticalSection( &dir_section );
1902 close( fd );
1903 }
1904 /* fall through to normal handling */
1905 }
1906 #endif /* VFAT_IOCTL_READDIR_BOTH */
1907
1908 if (!(dir = opendir( unix_name )))
1909 {
1910 if (errno == ENOENT) return STATUS_OBJECT_PATH_NOT_FOUND;
1911 else return FILE_GetNtStatus();
1912 }
1913 unix_name[pos - 1] = '/';
1914 str.Buffer = buffer;
1915 str.MaximumLength = sizeof(buffer);
1916 while ((de = readdir( dir )))
1917 {
1918 ret = ntdll_umbstowcs( 0, de->d_name, strlen(de->d_name), buffer, MAX_DIR_ENTRY_LEN );
1919 if (ret == length && !memicmpW( buffer, name, length ))
1920 {
1921 strcpy( unix_name + pos, de->d_name );
1922 closedir( dir );
1923 goto success;
1924 }
1925
1926 if (!is_name_8_dot_3) continue;
1927
1928 str.Length = ret * sizeof(WCHAR);
1929 if (!RtlIsNameLegalDOS8Dot3( &str, NULL, &spaces ) || spaces)
1930 {
1931 WCHAR short_nameW[12];
1932 ret = hash_short_file_name( &str, short_nameW );
1933 if (ret == length && !memicmpW( short_nameW, name, length ))
1934 {
1935 strcpy( unix_name + pos, de->d_name );
1936 closedir( dir );
1937 goto success;
1938 }
1939 }
1940 }
1941 closedir( dir );
1942 goto not_found; /* avoid warning */
1943
1944 not_found:
1945 unix_name[pos - 1] = 0;
1946 return STATUS_OBJECT_PATH_NOT_FOUND;
1947
1948 success:
1949 if (is_win_dir && !stat( unix_name, &st )) *is_win_dir = is_same_file( &windir, &st );
1950 return STATUS_SUCCESS;
1951 }
1952
1953
1954 #ifndef _WIN64
1955
1956 static const WCHAR catrootW[] = {'s','y','s','t','e','m','3','2','\\','c','a','t','r','o','o','t',0};
1957 static const WCHAR catroot2W[] = {'s','y','s','t','e','m','3','2','\\','c','a','t','r','o','o','t','2',0};
1958 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};
1959 static const WCHAR driversetcW[] = {'s','y','s','t','e','m','3','2','\\','d','r','i','v','e','r','s','\\','e','t','c',0};
1960 static const WCHAR logfilesW[] = {'s','y','s','t','e','m','3','2','\\','l','o','g','f','i','l','e','s',0};
1961 static const WCHAR spoolW[] = {'s','y','s','t','e','m','3','2','\\','s','p','o','o','l',0};
1962 static const WCHAR system32W[] = {'s','y','s','t','e','m','3','2',0};
1963 static const WCHAR syswow64W[] = {'s','y','s','w','o','w','6','4',0};
1964 static const WCHAR sysnativeW[] = {'s','y','s','n','a','t','i','v','e',0};
1965 static const WCHAR regeditW[] = {'r','e','g','e','d','i','t','.','e','x','e',0};
1966 static const WCHAR wow_regeditW[] = {'s','y','s','w','o','w','6','4','\\','r','e','g','e','d','i','t','.','e','x','e',0};
1967
1968 static struct
1969 {
1970 const WCHAR *source;
1971 const WCHAR *dos_target;
1972 const char *unix_target;
1973 } redirects[] =
1974 {
1975 { catrootW, NULL, NULL },
1976 { catroot2W, NULL, NULL },
1977 { driversstoreW, NULL, NULL },
1978 { driversetcW, NULL, NULL },
1979 { logfilesW, NULL, NULL },
1980 { spoolW, NULL, NULL },
1981 { system32W, syswow64W, NULL },
1982 { sysnativeW, system32W, NULL },
1983 { regeditW, wow_regeditW, NULL }
1984 };
1985
1986 static unsigned int nb_redirects;
1987
1988
1989 /***********************************************************************
1990 * get_redirect_target
1991 *
1992 * Find the target unix name for a redirected dir.
1993 */
1994 static const char *get_redirect_target( const char *windows_dir, const WCHAR *name )
1995 {
1996 int used_default, len, pos, win_len = strlen( windows_dir );
1997 char *unix_name, *unix_target = NULL;
1998 NTSTATUS status;
1999
2000 if (!(unix_name = RtlAllocateHeap( GetProcessHeap(), 0, win_len + MAX_DIR_ENTRY_LEN + 2 )))
2001 return NULL;
2002 memcpy( unix_name, windows_dir, win_len );
2003 pos = win_len;
2004
2005 while (*name)
2006 {
2007 const WCHAR *end, *next;
2008
2009 for (end = name; *end; end++) if (IS_SEPARATOR(*end)) break;
2010 for (next = end; *next; next++) if (!IS_SEPARATOR(*next)) break;
2011
2012 status = find_file_in_dir( unix_name, pos, name, end - name, FALSE, NULL );
2013 if (status == STATUS_OBJECT_PATH_NOT_FOUND && !*next) /* not finding last element is ok */
2014 {
2015 len = ntdll_wcstoumbs( 0, name, end - name, unix_name + pos + 1,
2016 MAX_DIR_ENTRY_LEN - (pos - win_len), NULL, &used_default );
2017 if (len > 0 && !used_default)
2018 {
2019 unix_name[pos] = '/';
2020 pos += len + 1;
2021 unix_name[pos] = 0;
2022 break;
2023 }
2024 }
2025 if (status) goto done;
2026 pos += strlen( unix_name + pos );
2027 name = next;
2028 }
2029
2030 if ((unix_target = RtlAllocateHeap( GetProcessHeap(), 0, pos - win_len )))
2031 memcpy( unix_target, unix_name + win_len + 1, pos - win_len );
2032
2033 done:
2034 RtlFreeHeap( GetProcessHeap(), 0, unix_name );
2035 return unix_target;
2036 }
2037
2038
2039 /***********************************************************************
2040 * init_redirects
2041 */
2042 static void init_redirects(void)
2043 {
2044 UNICODE_STRING nt_name;
2045 ANSI_STRING unix_name;
2046 NTSTATUS status;
2047 struct stat st;
2048 unsigned int i;
2049
2050 if (!RtlDosPathNameToNtPathName_U( windows_dir.Buffer, &nt_name, NULL, NULL ))
2051 {
2052 ERR( "can't convert %s\n", debugstr_us(&windows_dir) );
2053 return;
2054 }
2055 status = wine_nt_to_unix_file_name( &nt_name, &unix_name, FILE_OPEN_IF, FALSE );
2056 RtlFreeUnicodeString( &nt_name );
2057 if (status)
2058 {
2059 ERR( "cannot open %s (%x)\n", debugstr_us(&windows_dir), status );
2060 return;
2061 }
2062 if (!stat( unix_name.Buffer, &st ))
2063 {
2064 windir.dev = st.st_dev;
2065 windir.ino = st.st_ino;
2066 nb_redirects = sizeof(redirects) / sizeof(redirects[0]);
2067 for (i = 0; i < nb_redirects; i++)
2068 {
2069 if (!redirects[i].dos_target) continue;
2070 redirects[i].unix_target = get_redirect_target( unix_name.Buffer, redirects[i].dos_target );
2071 TRACE( "%s -> %s\n", debugstr_w(redirects[i].source), redirects[i].unix_target );
2072 }
2073 }
2074 RtlFreeAnsiString( &unix_name );
2075
2076 }
2077
2078
2079 /***********************************************************************
2080 * match_redirect
2081 *
2082 * Check if path matches a redirect name. If yes, return matched length.
2083 */
2084 static int match_redirect( const WCHAR *path, int len, const WCHAR *redir, int check_case )
2085 {
2086 int i = 0;
2087
2088 while (i < len && *redir)
2089 {
2090 if (IS_SEPARATOR(path[i]))
2091 {
2092 if (*redir++ != '\\') return 0;
2093 while (i < len && IS_SEPARATOR(path[i])) i++;
2094 continue; /* move on to next path component */
2095 }
2096 else if (check_case)
2097 {
2098 if (path[i] != *redir) return 0;
2099 }
2100 else
2101 {
2102 if (tolowerW(path[i]) != tolowerW(*redir)) return 0;
2103 }
2104 i++;
2105 redir++;
2106 }
2107 if (*redir) return 0;
2108 if (i < len && !IS_SEPARATOR(path[i])) return 0;
2109 while (i < len && IS_SEPARATOR(path[i])) i++;
2110 return i;
2111 }
2112
2113
2114 /***********************************************************************
2115 * get_redirect_path
2116 *
2117 * Retrieve the Unix path corresponding to a redirected path if any.
2118 */
2119 static int get_redirect_path( char *unix_name, int pos, const WCHAR *name, int length, int check_case )
2120 {
2121 unsigned int i;
2122 int len;
2123
2124 for (i = 0; i < nb_redirects; i++)
2125 {
2126 if ((len = match_redirect( name, length, redirects[i].source, check_case )))
2127 {
2128 if (!redirects[i].unix_target) break;
2129 unix_name[pos++] = '/';
2130 strcpy( unix_name + pos, redirects[i].unix_target );
2131 return len;
2132 }
2133 }
2134 return 0;
2135 }
2136
2137 #else /* _WIN64 */
2138
2139 /* there are no redirects on 64-bit */
2140
2141 static const unsigned int nb_redirects = 0;
2142
2143 static int get_redirect_path( char *unix_name, int pos, const WCHAR *name, int length, int check_case )
2144 {
2145 return 0;
2146 }
2147
2148 #endif
2149
2150 /***********************************************************************
2151 * DIR_init_windows_dir
2152 */
2153 void DIR_init_windows_dir( const WCHAR *win, const WCHAR *sys )
2154 {
2155 /* FIXME: should probably store paths as NT file names */
2156
2157 RtlCreateUnicodeString( &windows_dir, win );
2158 RtlCreateUnicodeString( &system_dir, sys );
2159
2160 #ifndef _WIN64
2161 if (is_wow64) init_redirects();
2162 #endif
2163 }
2164
2165
2166 /******************************************************************************
2167 * get_dos_device
2168 *
2169 * Get the Unix path of a DOS device.
2170 */
2171 static NTSTATUS get_dos_device( const WCHAR *name, UINT name_len, ANSI_STRING *unix_name_ret )
2172 {
2173 const char *config_dir = wine_get_config_dir();
2174 struct stat st;
2175 char *unix_name, *new_name, *dev;
2176 unsigned int i;
2177 int unix_len;
2178
2179 /* make sure the device name is ASCII */
2180 for (i = 0; i < name_len; i++)
2181 if (name[i] <= 32 || name[i] >= 127) return STATUS_BAD_DEVICE_TYPE;
2182
2183 unix_len = strlen(config_dir) + sizeof("/dosdevices/") + name_len + 1;
2184
2185 if (!(unix_name = RtlAllocateHeap( GetProcessHeap(), 0, unix_len )))
2186 return STATUS_NO_MEMORY;
2187
2188 strcpy( unix_name, config_dir );
2189 strcat( unix_name, "/dosdevices/" );
2190 dev = unix_name + strlen(unix_name);
2191
2192 for (i = 0; i < name_len; i++) dev[i] = (char)tolowerW(name[i]);
2193 dev[i] = 0;
2194
2195 /* special case for drive devices */
2196 if (name_len == 2 && dev[1] == ':')
2197 {
2198 dev[i++] = ':';
2199 dev[i] = 0;
2200 }
2201
2202 for (;;)
2203 {
2204 if (!stat( unix_name, &st ))
2205 {
2206 TRACE( "%s -> %s\n", debugstr_wn(name,name_len), debugstr_a(unix_name) );
2207 unix_name_ret->Buffer = unix_name;
2208 unix_name_ret->Length = strlen(unix_name);
2209 unix_name_ret->MaximumLength = unix_len;
2210 return STATUS_SUCCESS;
2211 }
2212 if (!dev) break;
2213
2214 /* now try some defaults for it */
2215 if (!strcmp( dev, "aux" ))
2216 {
2217 strcpy( dev, "com1" );
2218 continue;
2219 }
2220 if (!strcmp( dev, "prn" ))
2221 {
2222 strcpy( dev, "lpt1" );
2223 continue;
2224 }
2225 if (!strcmp( dev, "nul" ))
2226 {
2227 strcpy( unix_name, "/dev/null" );
2228 dev = NULL; /* last try */
2229 continue;
2230 }
2231
2232 new_name = NULL;
2233 if (dev[1] == ':' && dev[2] == ':') /* drive device */
2234 {
2235 dev[2] = 0; /* remove last ':' to get the drive mount point symlink */
2236 new_name = get_default_drive_device( unix_name );
2237 }
2238 else if (!strncmp( dev, "com", 3 )) new_name = get_default_com_device( atoi(dev + 3 ));
2239 else if (!strncmp( dev, "lpt", 3 )) new_name = get_default_lpt_device( atoi(dev + 3 ));
2240
2241 if (!new_name) break;
2242
2243 RtlFreeHeap( GetProcessHeap(), 0, unix_name );
2244 unix_name = new_name;
2245 unix_len = strlen(unix_name) + 1;
2246 dev = NULL; /* last try */
2247 }
2248 RtlFreeHeap( GetProcessHeap(), 0, unix_name );
2249 return STATUS_BAD_DEVICE_TYPE;
2250 }
2251
2252
2253 /* return the length of the DOS namespace prefix if any */
2254 static inline int get_dos_prefix_len( const UNICODE_STRING *name )
2255 {
2256 static const WCHAR nt_prefixW[] = {'\\','?','?','\\'};
2257 static const WCHAR dosdev_prefixW[] = {'\\','D','o','s','D','e','v','i','c','e','s','\\'};
2258
2259 if (name->Length > sizeof(nt_prefixW) &&
2260 !memcmp( name->Buffer, nt_prefixW, sizeof(nt_prefixW) ))
2261 return sizeof(nt_prefixW) / sizeof(WCHAR);
2262
2263 if (name->Length > sizeof(dosdev_prefixW) &&
2264 !memicmpW( name->Buffer, dosdev_prefixW, sizeof(dosdev_prefixW)/sizeof(WCHAR) ))
2265 return sizeof(dosdev_prefixW) / sizeof(WCHAR);
2266
2267 return 0;
2268 }
2269
2270
2271 /******************************************************************************
2272 * find_file_id
2273 *
2274 * Recursively search directories from the dir queue for a given inode.
2275 */
2276 static NTSTATUS find_file_id( ANSI_STRING *unix_name, ULONGLONG file_id, dev_t dev )
2277 {
2278 unsigned int pos;
2279 DIR *dir;
2280 struct dirent *de;
2281 NTSTATUS status;
2282 struct stat st;
2283
2284 while (!(status = next_dir_in_queue( unix_name->Buffer )))
2285 {
2286 if (!(dir = opendir( unix_name->Buffer ))) continue;
2287 TRACE( "searching %s for %s\n", unix_name->Buffer, wine_dbgstr_longlong(file_id) );
2288 pos = strlen( unix_name->Buffer );
2289 if (pos + MAX_DIR_ENTRY_LEN >= unix_name->MaximumLength/sizeof(WCHAR))
2290 {
2291 char *new = RtlReAllocateHeap( GetProcessHeap(), 0, unix_name->Buffer,
2292 unix_name->MaximumLength * 2 );
2293 if (!new)
2294 {
2295 closedir( dir );
2296 return STATUS_NO_MEMORY;
2297 }
2298 unix_name->MaximumLength *= 2;
2299 unix_name->Buffer = new;
2300 }
2301 unix_name->Buffer[pos++] = '/';
2302 while ((de = readdir( dir )))
2303 {
2304 if (!strcmp( de->d_name, "." ) || !strcmp( de->d_name, ".." )) continue;
2305 strcpy( unix_name->Buffer + pos, de->d_name );
2306 if (lstat( unix_name->Buffer, &st ) == -1) continue;
2307 if (st.st_dev != dev) continue;
2308 if (st.st_ino == file_id)
2309 {
2310 closedir( dir );
2311 return STATUS_SUCCESS;
2312 }
2313 if (!S_ISDIR( st.st_mode )) continue;
2314 if ((status = add_dir_to_queue( unix_name->Buffer )) != STATUS_SUCCESS)
2315 {
2316 closedir( dir );
2317 return status;
2318 }
2319 }
2320 closedir( dir );
2321 }
2322 return status;
2323 }
2324
2325
2326 /******************************************************************************
2327 * file_id_to_unix_file_name
2328 *
2329 * Lookup a file from its file id instead of its name.
2330 */
2331 NTSTATUS file_id_to_unix_file_name( const OBJECT_ATTRIBUTES *attr, ANSI_STRING *unix_name )
2332 {
2333 enum server_fd_type type;
2334 int old_cwd, root_fd, needs_close;
2335 NTSTATUS status;
2336 ULONGLONG file_id;
2337 struct stat st, root_st;
2338
2339 if (attr->ObjectName->Length != sizeof(ULONGLONG)) return STATUS_OBJECT_PATH_SYNTAX_BAD;
2340 if (!attr->RootDirectory) return STATUS_INVALID_PARAMETER;
2341 memcpy( &file_id, attr->ObjectName->Buffer, sizeof(file_id) );
2342
2343 unix_name->MaximumLength = 2 * MAX_DIR_ENTRY_LEN + 4;
2344 if (!(unix_name->Buffer = RtlAllocateHeap( GetProcessHeap(), 0, unix_name->MaximumLength )))
2345 return STATUS_NO_MEMORY;
2346 strcpy( unix_name->Buffer, "." );
2347
2348 if ((status = server_get_unix_fd( attr->RootDirectory, 0, &root_fd, &needs_close, &type, NULL )))
2349 goto done;
2350
2351 if (type != FD_TYPE_DIR)
2352 {
2353 status = STATUS_OBJECT_TYPE_MISMATCH;
2354 goto done;
2355 }
2356
2357 fstat( root_fd, &root_st );
2358 if (root_st.st_ino == file_id) /* shortcut for "." */
2359 {
2360 status = STATUS_SUCCESS;
2361 goto done;
2362 }
2363
2364 RtlEnterCriticalSection( &dir_section );
2365 if ((old_cwd = open( ".", O_RDONLY )) != -1 && fchdir( root_fd ) != -1)
2366 {
2367 /* shortcut for ".." */
2368 if (!stat( "..", &st ) && st.st_dev == root_st.st_dev && st.st_ino == file_id)
2369 {
2370 strcpy( unix_name->Buffer, ".." );
2371 status = STATUS_SUCCESS;
2372 }
2373 else
2374 {
2375 status = add_dir_to_queue( "." );
2376 if (!status)
2377 status = find_file_id( unix_name, file_id, root_st.st_dev );
2378 if (!status) /* get rid of "./" prefix */
2379 memmove( unix_name->Buffer, unix_name->Buffer + 2, strlen(unix_name->Buffer) - 1 );
2380 flush_dir_queue();
2381 }
2382 if (fchdir( old_cwd ) == -1) chdir( "/" );
2383 }
2384 else status = FILE_GetNtStatus();
2385 RtlLeaveCriticalSection( &dir_section );
2386 if (old_cwd != -1) close( old_cwd );
2387
2388 done:
2389 if (status == STATUS_SUCCESS)
2390 {
2391 TRACE( "%s -> %s\n", wine_dbgstr_longlong(file_id), debugstr_a(unix_name->Buffer) );
2392 unix_name->Length = strlen( unix_name->Buffer );
2393 }
2394 else
2395 {
2396 TRACE( "%s not found in dir %p\n", wine_dbgstr_longlong(file_id), attr->RootDirectory );
2397 RtlFreeHeap( GetProcessHeap(), 0, unix_name->Buffer );
2398 }
2399 if (needs_close) close( root_fd );
2400 return status;
2401 }
2402
2403
2404 /******************************************************************************
2405 * lookup_unix_name
2406 *
2407 * Helper for nt_to_unix_file_name
2408 */
2409 static NTSTATUS lookup_unix_name( const WCHAR *name, int name_len, char **buffer, int unix_len, int pos,
2410 UINT disposition, BOOLEAN check_case )
2411 {
2412 NTSTATUS status;
2413 int ret, used_default, len;
2414 struct stat st;
2415 char *unix_name = *buffer;
2416 const BOOL redirect = nb_redirects && ntdll_get_thread_data()->wow64_redir;
2417
2418 /* try a shortcut first */
2419
2420 ret = ntdll_wcstoumbs( 0, name, name_len, unix_name + pos, unix_len - pos - 1,
2421 NULL, &used_default );
2422
2423 while (name_len && IS_SEPARATOR(*name))
2424 {
2425 name++;
2426 name_len--;
2427 }
2428
2429 if (ret >= 0 && !used_default) /* if we used the default char the name didn't convert properly */
2430 {
2431 char *p;
2432 unix_name[pos + ret] = 0;
2433 for (p = unix_name + pos ; *p; p++) if (*p == '\\') *p = '/';
2434 if (!redirect || (!strstr( unix_name, "/windows/") && strncmp( unix_name, "windows/", 8 )))
2435 {
2436 if (!stat( unix_name, &st ))
2437 {
2438 /* creation fails with STATUS_ACCESS_DENIED for the root of the drive */
2439 if (disposition == FILE_CREATE)
2440 return name_len ? STATUS_OBJECT_NAME_COLLISION : STATUS_ACCESS_DENIED;
2441 return STATUS_SUCCESS;
2442 }
2443 }
2444 }
2445
2446 if (!name_len) /* empty name -> drive root doesn't exist */
2447 return STATUS_OBJECT_PATH_NOT_FOUND;
2448 if (check_case && !redirect && (disposition == FILE_OPEN || disposition == FILE_OVERWRITE))
2449 return STATUS_OBJECT_NAME_NOT_FOUND;
2450
2451 /* now do it component by component */
2452
2453 while (name_len)
2454 {
2455 const WCHAR *end, *next;
2456 int is_win_dir = 0;
2457
2458 end = name;
2459 while (end < name + name_len && !IS_SEPARATOR(*end)) end++;
2460 next = end;
2461 while (next < name + name_len && IS_SEPARATOR(*next)) next++;
2462 name_len -= next - name;
2463
2464 /* grow the buffer if needed */
2465
2466 if (unix_len - pos < MAX_DIR_ENTRY_LEN + 2)
2467 {
2468 char *new_name;
2469 unix_len += 2 * MAX_DIR_ENTRY_LEN;
2470 if (!(new_name = RtlReAllocateHeap( GetProcessHeap(), 0, unix_name, unix_len )))
2471 return STATUS_NO_MEMORY;
2472 unix_name = *buffer = new_name;
2473 }
2474
2475 status = find_file_in_dir( unix_name, pos, name, end - name,
2476 check_case, redirect ? &is_win_dir : NULL );
2477
2478 /* if this is the last element, not finding it is not necessarily fatal */
2479 if (!name_len)
2480 {
2481 if (status == STATUS_OBJECT_PATH_NOT_FOUND)
2482 {
2483 status = STATUS_OBJECT_NAME_NOT_FOUND;
2484 if (disposition != FILE_OPEN && disposition != FILE_OVERWRITE)
2485 {
2486 ret = ntdll_wcstoumbs( 0, name, end - name, unix_name + pos + 1,
2487 MAX_DIR_ENTRY_LEN, NULL, &used_default );
2488 if (ret > 0 && !used_default)
2489 {
2490 unix_name[pos] = '/';
2491 unix_name[pos + 1 + ret] = 0;
2492 status = STATUS_NO_SUCH_FILE;
2493 break;
2494 }
2495 }
2496 }
2497 else if (status == STATUS_SUCCESS && disposition == FILE_CREATE)
2498 {
2499 status = STATUS_OBJECT_NAME_COLLISION;
2500 }
2501 }
2502
2503 if (status != STATUS_SUCCESS) break;
2504
2505 pos += strlen( unix_name + pos );
2506 name = next;
2507
2508 if (is_win_dir && (len = get_redirect_path( unix_name, pos, name, name_len, check_case )))
2509 {
2510 name += len;
2511 name_len -= len;
2512 pos += strlen( unix_name + pos );
2513 TRACE( "redirecting -> %s + %s\n", debugstr_a(unix_name), debugstr_w(name) );
2514 }
2515 }
2516
2517 return status;
2518 }
2519
2520
2521 /******************************************************************************
2522 * nt_to_unix_file_name_attr
2523 */
2524 NTSTATUS nt_to_unix_file_name_attr( const OBJECT_ATTRIBUTES *attr, ANSI_STRING *unix_name_ret,
2525 UINT disposition )
2526 {
2527 static const WCHAR invalid_charsW[] = { INVALID_NT_CHARS, 0 };
2528 enum server_fd_type type;
2529 int old_cwd, root_fd, needs_close;
2530 const WCHAR *name, *p;
2531 char *unix_name;
2532 int name_len, unix_len;
2533 NTSTATUS status;
2534 BOOLEAN check_case = !(attr->Attributes & OBJ_CASE_INSENSITIVE);
2535
2536 if (!attr->RootDirectory) /* without root dir fall back to normal lookup */
2537 return wine_nt_to_unix_file_name( attr->ObjectName, unix_name_ret, disposition, check_case );
2538
2539 name = attr->ObjectName->Buffer;
2540 name_len = attr->ObjectName->Length / sizeof(WCHAR);
2541
2542 if (name_len && IS_SEPARATOR(name[0])) return STATUS_INVALID_PARAMETER;
2543
2544 /* check for invalid characters */
2545 for (p = name; p < name + name_len; p++)
2546 if (*p < 32 || strchrW( invalid_charsW, *p )) return STATUS_OBJECT_NAME_INVALID;
2547
2548 unix_len = ntdll_wcstoumbs( 0, name, name_len, NULL, 0, NULL, NULL );
2549 unix_len += MAX_DIR_ENTRY_LEN + 3;
2550 if (!(unix_name = RtlAllocateHeap( GetProcessHeap(), 0, unix_len )))
2551 return STATUS_NO_MEMORY;
2552 unix_name[0] = '.';
2553
2554 if (!(status = server_get_unix_fd( attr->RootDirectory, 0, &root_fd, &needs_close, &type, NULL )))
2555 {
2556 if (type != FD_TYPE_DIR)
2557 {
2558 if (needs_close) close( root_fd );
2559 status = STATUS_BAD_DEVICE_TYPE;
2560 }
2561 else
2562 {
2563 RtlEnterCriticalSection( &dir_section );
2564 if ((old_cwd = open( ".", O_RDONLY )) != -1 && fchdir( root_fd ) != -1)
2565 {
2566 status = lookup_unix_name( name, name_len, &unix_name, unix_len, 1,
2567 disposition, check_case );
2568 if (fchdir( old_cwd ) == -1) chdir( "/" );
2569 }
2570 else status = FILE_GetNtStatus();
2571 RtlLeaveCriticalSection( &dir_section );
2572 if (old_cwd != -1) close( old_cwd );
2573 if (needs_close) close( root_fd );
2574 }
2575 }
2576 else if (status == STATUS_OBJECT_TYPE_MISMATCH) status = STATUS_BAD_DEVICE_TYPE;
2577
2578 if (status == STATUS_SUCCESS || status == STATUS_NO_SUCH_FILE)
2579 {
2580 TRACE( "%s -> %s\n", debugstr_us(attr->ObjectName), debugstr_a(unix_name) );
2581 unix_name_ret->Buffer = unix_name;
2582 unix_name_ret->Length = strlen(unix_name);
2583 unix_name_ret->MaximumLength = unix_len;
2584 }
2585 else
2586 {
2587 TRACE( "%s not found in %s\n", debugstr_w(name), unix_name );
2588 RtlFreeHeap( GetProcessHeap(), 0, unix_name );
2589 }
2590 return status;
2591 }
2592
2593
2594 /******************************************************************************
2595 * wine_nt_to_unix_file_name (NTDLL.@) Not a Windows API
2596 *
2597 * Convert a file name from NT namespace to Unix namespace.
2598 *
2599 * If disposition is not FILE_OPEN or FILE_OVERWRITE, the last path
2600 * element doesn't have to exist; in that case STATUS_NO_SUCH_FILE is
2601 * returned, but the unix name is still filled in properly.
2602 */
2603 NTSTATUS CDECL wine_nt_to_unix_file_name( const UNICODE_STRING *nameW, ANSI_STRING *unix_name_ret,
2604 UINT disposition, BOOLEAN check_case )
2605 {
2606 static const WCHAR unixW[] = {'u','n','i','x'};
2607 static const WCHAR invalid_charsW[] = { INVALID_NT_CHARS, 0 };
2608
2609 NTSTATUS status = STATUS_SUCCESS;
2610 const char *config_dir = wine_get_config_dir();
2611 const WCHAR *name, *p;
2612 struct stat st;
2613 char *unix_name;
2614 int pos, ret, name_len, unix_len, prefix_len, used_default;
2615 WCHAR prefix[MAX_DIR_ENTRY_LEN];
2616 BOOLEAN is_unix = FALSE;
2617
2618 name = nameW->Buffer;
2619 name_len = nameW->Length / sizeof(WCHAR);
2620
2621 if (!name_len || !IS_SEPARATOR(name[0])) return STATUS_OBJECT_PATH_SYNTAX_BAD;
2622
2623 if (!(pos = get_dos_prefix_len( nameW )))
2624 return STATUS_BAD_DEVICE_TYPE; /* no DOS prefix, assume NT native name */
2625
2626 name += pos;
2627 name_len -= pos;
2628
2629 /* check for sub-directory */
2630 for (pos = 0; pos < name_len; pos++)
2631 {
2632 if (IS_SEPARATOR(name[pos])) break;
2633 if (name[pos] < 32 || strchrW( invalid_charsW, name[pos] ))
2634 return STATUS_OBJECT_NAME_INVALID;
2635 }
2636 if (pos > MAX_DIR_ENTRY_LEN)
2637 return STATUS_OBJECT_NAME_INVALID;
2638
2639 if (pos == name_len) /* no subdir, plain DOS device */
2640 return get_dos_device( name, name_len, unix_name_ret );
2641
2642 for (prefix_len = 0; prefix_len < pos; prefix_len++)
2643 prefix[prefix_len] = tolowerW(name[prefix_len]);
2644
2645 name += prefix_len;
2646 name_len -= prefix_len;
2647
2648 /* check for invalid characters (all chars except 0 are valid for unix) */
2649 is_unix = (prefix_len == 4 && !memcmp( prefix, unixW, sizeof(unixW) ));
2650 if (is_unix)
2651 {
2652 for (p = name; p < name + name_len; p++)
2653 if (!*p) return STATUS_OBJECT_NAME_INVALID;
2654 check_case = TRUE;
2655 }
2656 else
2657 {
2658 for (p = name; p < name + name_len; p++)
2659 if (*p < 32 || strchrW( invalid_charsW, *p )) return STATUS_OBJECT_NAME_INVALID;
2660 }
2661
2662 unix_len = ntdll_wcstoumbs( 0, prefix, prefix_len, NULL, 0, NULL, NULL );
2663 unix_len += ntdll_wcstoumbs( 0, name, name_len, NULL, 0, NULL, NULL );
2664 unix_len += MAX_DIR_ENTRY_LEN + 3;
2665 unix_len += strlen(config_dir) + sizeof("/dosdevices/");
2666 if (!(unix_name = RtlAllocateHeap( GetProcessHeap(), 0, unix_len )))
2667 return STATUS_NO_MEMORY;
2668 strcpy( unix_name, config_dir );
2669 strcat( unix_name, "/dosdevices/" );
2670 pos = strlen(unix_name);
2671
2672 ret = ntdll_wcstoumbs( 0, prefix, prefix_len, unix_name + pos, unix_len - pos - 1,
2673 NULL, &used_default );
2674 if (!ret || used_default)
2675 {
2676 RtlFreeHeap( GetProcessHeap(), 0, unix_name );
2677 return STATUS_OBJECT_NAME_INVALID;
2678 }
2679 pos += ret;
2680
2681 /* check if prefix exists (except for DOS drives to avoid extra stat calls) */
2682
2683 if (prefix_len != 2 || prefix[1] != ':')
2684 {
2685 unix_name[pos] = 0;
2686 if (lstat( unix_name, &st ) == -1 && errno == ENOENT)
2687 {
2688 if (!is_unix)
2689 {
2690 RtlFreeHeap( GetProcessHeap(), 0, unix_name );
2691 return STATUS_BAD_DEVICE_TYPE;
2692 }
2693 pos = 0; /* fall back to unix root */
2694 }
2695 }
2696
2697 status = lookup_unix_name( name, name_len, &unix_name, unix_len, pos, disposition, check_case );
2698 if (status == STATUS_SUCCESS || status == STATUS_NO_SUCH_FILE)
2699 {
2700 TRACE( "%s -> %s\n", debugstr_us(nameW), debugstr_a(unix_name) );
2701 unix_name_ret->Buffer = unix_name;
2702 unix_name_ret->Length = strlen(unix_name);
2703 unix_name_ret->MaximumLength = unix_len;
2704 }
2705 else
2706 {
2707 TRACE( "%s not found in %s\n", debugstr_w(name), unix_name );
2708 RtlFreeHeap( GetProcessHeap(), 0, unix_name );
2709 }
2710 return status;
2711 }
2712
2713
2714 /******************************************************************
2715 * RtlWow64EnableFsRedirection (NTDLL.@)
2716 */
2717 NTSTATUS WINAPI RtlWow64EnableFsRedirection( BOOLEAN enable )
2718 {
2719 if (!is_wow64) return STATUS_NOT_IMPLEMENTED;
2720 ntdll_get_thread_data()->wow64_redir = enable;
2721 return STATUS_SUCCESS;
2722 }
2723
2724
2725 /******************************************************************
2726 * RtlWow64EnableFsRedirectionEx (NTDLL.@)
2727 */
2728 NTSTATUS WINAPI RtlWow64EnableFsRedirectionEx( ULONG disable, ULONG *old_value )
2729 {
2730 if (!is_wow64) return STATUS_NOT_IMPLEMENTED;
2731 *old_value = !ntdll_get_thread_data()->wow64_redir;
2732 ntdll_get_thread_data()->wow64_redir = !disable;
2733 return STATUS_SUCCESS;
2734 }
2735
2736
2737 /******************************************************************
2738 * RtlDoesFileExists_U (NTDLL.@)
2739 */
2740 BOOLEAN WINAPI RtlDoesFileExists_U(LPCWSTR file_name)
2741 {
2742 UNICODE_STRING nt_name;
2743 FILE_BASIC_INFORMATION basic_info;
2744 OBJECT_ATTRIBUTES attr;
2745 BOOLEAN ret;
2746
2747 if (!RtlDosPathNameToNtPathName_U( file_name, &nt_name, NULL, NULL )) return FALSE;
2748
2749 attr.Length = sizeof(attr);
2750 attr.RootDirectory = 0;
2751 attr.ObjectName = &nt_name;
2752 attr.Attributes = OBJ_CASE_INSENSITIVE;
2753 attr.SecurityDescriptor = NULL;
2754 attr.SecurityQualityOfService = NULL;
2755
2756 ret = NtQueryAttributesFile(&attr, &basic_info) == STATUS_SUCCESS;
2757
2758 RtlFreeUnicodeString( &nt_name );
2759 return ret;
2760 }
2761
2762
2763 /***********************************************************************
2764 * DIR_unmount_device
2765 *
2766 * Unmount the specified device.
2767 */
2768 NTSTATUS DIR_unmount_device( HANDLE handle )
2769 {
2770 NTSTATUS status;
2771 int unix_fd, needs_close;
2772
2773 if (!(status = server_get_unix_fd( handle, 0, &unix_fd, &needs_close, NULL, NULL )))
2774 {
2775 struct stat st;
2776 char *mount_point = NULL;
2777
2778 if (fstat( unix_fd, &st ) == -1 || !is_valid_mounted_device( &st ))
2779 status = STATUS_INVALID_PARAMETER;
2780 else
2781 {
2782 if ((mount_point = get_device_mount_point( st.st_rdev )))
2783 {
2784 #ifdef __APPLE__
2785 static const char umount[] = "diskutil unmount >/dev/null 2>&1 ";
2786 #else
2787 static const char umount[] = "umount >/dev/null 2>&1 ";
2788 #endif
2789 char *cmd = RtlAllocateHeap( GetProcessHeap(), 0, strlen(mount_point)+sizeof(umount));
2790 if (cmd)
2791 {
2792 strcpy( cmd, umount );
2793 strcat( cmd, mount_point );
2794 system( cmd );
2795 RtlFreeHeap( GetProcessHeap(), 0, cmd );
2796 #ifdef linux
2797 /* umount will fail to release the loop device since we still have
2798 a handle to it, so we release it here */
2799 if (major(st.st_rdev) == LOOP_MAJOR) ioctl( unix_fd, 0x4c01 /*LOOP_CLR_FD*/, 0 );
2800 #endif
2801 }
2802 RtlFreeHeap( GetProcessHeap(), 0, mount_point );
2803 }
2804 }
2805 if (needs_close) close( unix_fd );
2806 }
2807 return status;
2808 }
2809
2810
2811 /******************************************************************************
2812 * DIR_get_unix_cwd
2813 *
2814 * Retrieve the Unix name of the current directory; helper for wine_unix_to_nt_file_name.
2815 * Returned value must be freed by caller.
2816 */
2817 NTSTATUS DIR_get_unix_cwd( char **cwd )
2818 {
2819 int old_cwd, unix_fd, needs_close;
2820 CURDIR *curdir;
2821 HANDLE handle;
2822 NTSTATUS status;
2823
2824 RtlAcquirePebLock();
2825
2826 if (NtCurrentTeb()->Tib.SubSystemTib) /* FIXME: hack */
2827 curdir = &((WIN16_SUBSYSTEM_TIB *)NtCurrentTeb()->Tib.SubSystemTib)->curdir;
2828 else
2829 curdir = &NtCurrentTeb()->Peb->ProcessParameters->CurrentDirectory;
2830
2831 if (!(handle = curdir->Handle))
2832 {
2833 UNICODE_STRING dirW;
2834 OBJECT_ATTRIBUTES attr;
2835 IO_STATUS_BLOCK io;
2836
2837 if (!RtlDosPathNameToNtPathName_U( curdir->DosPath.Buffer, &dirW, NULL, NULL ))
2838 {
2839 status = STATUS_OBJECT_NAME_INVALID;
2840 goto done;
2841 }
2842 attr.Length = sizeof(attr);
2843 attr.RootDirectory = 0;
2844 attr.Attributes = OBJ_CASE_INSENSITIVE;
2845 attr.ObjectName = &dirW;
2846 attr.SecurityDescriptor = NULL;
2847 attr.SecurityQualityOfService = NULL;
2848
2849 status = NtOpenFile( &handle, 0, &attr, &io, 0,
2850 FILE_DIRECTORY_FILE | FILE_SYNCHRONOUS_IO_NONALERT );
2851 RtlFreeUnicodeString( &dirW );
2852 if (status != STATUS_SUCCESS) goto done;
2853 }
2854
2855 if ((status = server_get_unix_fd( handle, 0, &unix_fd, &needs_close, NULL, NULL )) == STATUS_SUCCESS)
2856 {
2857 RtlEnterCriticalSection( &dir_section );
2858
2859 if ((old_cwd = open(".", O_RDONLY)) != -1 && fchdir( unix_fd ) != -1)
2860 {
2861 unsigned int size = 512;
2862
2863 for (;;)
2864 {
2865 if (!(*cwd = RtlAllocateHeap( GetProcessHeap(), 0, size )))
2866 {
2867 status = STATUS_NO_MEMORY;
2868 break;
2869 }
2870 if (getcwd( *cwd, size )) break;
2871 RtlFreeHeap( GetProcessHeap(), 0, *cwd );
2872 if (errno != ERANGE)
2873 {
2874 status = STATUS_OBJECT_PATH_INVALID;
2875 break;
2876 }
2877 size *= 2;
2878 }
2879 if (fchdir( old_cwd ) == -1) chdir( "/" );
2880 }
2881 else status = FILE_GetNtStatus();
2882
2883 RtlLeaveCriticalSection( &dir_section );
2884 if (old_cwd != -1) close( old_cwd );
2885 if (needs_close) close( unix_fd );
2886 }
2887 if (!curdir->Handle) NtClose( handle );
2888
2889 done:
2890 RtlReleasePebLock();
2891 return status;
2892 }
2893
2894 struct read_changes_info
2895 {
2896 HANDLE FileHandle;
2897 PVOID Buffer;
2898 ULONG BufferSize;
2899 PIO_APC_ROUTINE apc;
2900 void *apc_arg;
2901 };
2902
2903 /* callback for ioctl user APC */
2904 static void WINAPI read_changes_user_apc( void *arg, IO_STATUS_BLOCK *io, ULONG reserved )
2905 {
2906 struct read_changes_info *info = arg;
2907 if (info->apc) info->apc( info->apc_arg, io, reserved );
2908 RtlFreeHeap( GetProcessHeap(), 0, info );
2909 }
2910
2911 static NTSTATUS read_changes_apc( void *user, PIO_STATUS_BLOCK iosb, NTSTATUS status, void **apc )
2912 {
2913 struct read_changes_info *info = user;
2914 char path[PATH_MAX];
2915 NTSTATUS ret = STATUS_SUCCESS;
2916 int len, action, i;
2917
2918 SERVER_START_REQ( read_change )
2919 {
2920 req->handle = wine_server_obj_handle( info->FileHandle );
2921 wine_server_set_reply( req, path, PATH_MAX );
2922 ret = wine_server_call( req );
2923 action = reply->action;
2924 len = wine_server_reply_size( reply );
2925 }
2926 SERVER_END_REQ;
2927
2928 if (ret == STATUS_SUCCESS && info->Buffer &&
2929 (info->BufferSize > (sizeof (FILE_NOTIFY_INFORMATION) + len*sizeof(WCHAR))))
2930 {
2931 PFILE_NOTIFY_INFORMATION pfni;
2932
2933 pfni = info->Buffer;
2934
2935 /* convert to an NT style path */
2936 for (i=0; i<len; i++)
2937 if (path[i] == '/')
2938 path[i] = '\\';
2939
2940 len = ntdll_umbstowcs( 0, path, len, pfni->FileName,
2941 info->BufferSize - sizeof (*pfni) );
2942
2943 pfni->NextEntryOffset = 0;
2944 pfni->Action = action;
2945 pfni->FileNameLength = len * sizeof (WCHAR);
2946 pfni->FileName[len] = 0;
2947 len = sizeof (*pfni) - sizeof (DWORD) + pfni->FileNameLength;
2948 }
2949 else
2950 {
2951 ret = STATUS_NOTIFY_ENUM_DIR;
2952 len = 0;
2953 }
2954
2955 iosb->u.Status = ret;
2956 iosb->Information = len;
2957 *apc = read_changes_user_apc;
2958 return ret;
2959 }
2960
2961 #define FILE_NOTIFY_ALL ( \
2962 FILE_NOTIFY_CHANGE_FILE_NAME | \
2963 FILE_NOTIFY_CHANGE_DIR_NAME | \
2964 FILE_NOTIFY_CHANGE_ATTRIBUTES | \
2965 FILE_NOTIFY_CHANGE_SIZE | \
2966 FILE_NOTIFY_CHANGE_LAST_WRITE | \
2967 FILE_NOTIFY_CHANGE_LAST_ACCESS | \
2968 FILE_NOTIFY_CHANGE_CREATION | \
2969 FILE_NOTIFY_CHANGE_SECURITY )
2970
2971 /******************************************************************************
2972 * NtNotifyChangeDirectoryFile [NTDLL.@]
2973 */
2974 NTSTATUS WINAPI
2975 NtNotifyChangeDirectoryFile( HANDLE FileHandle, HANDLE Event,
2976 PIO_APC_ROUTINE ApcRoutine, PVOID ApcContext,
2977 PIO_STATUS_BLOCK IoStatusBlock, PVOID Buffer,
2978 ULONG BufferSize, ULONG CompletionFilter, BOOLEAN WatchTree )
2979 {
2980 struct read_changes_info *info;
2981 NTSTATUS status;
2982 ULONG_PTR cvalue = ApcRoutine ? 0 : (ULONG_PTR)ApcContext;
2983
2984 TRACE("%p %p %p %p %p %p %u %u %d\n",
2985 FileHandle, Event, ApcRoutine, ApcContext, IoStatusBlock,
2986 Buffer, BufferSize, CompletionFilter, WatchTree );
2987
2988 if (!IoStatusBlock)
2989 return STATUS_ACCESS_VIOLATION;
2990
2991 if (CompletionFilter == 0 || (CompletionFilter & ~FILE_NOTIFY_ALL))
2992 return STATUS_INVALID_PARAMETER;
2993
2994 info = RtlAllocateHeap( GetProcessHeap(), 0, sizeof *info );
2995 if (!info)
2996 return STATUS_NO_MEMORY;
2997
2998 info->FileHandle = FileHandle;
2999 info->Buffer = Buffer;
3000 info->BufferSize = BufferSize;
3001 info->apc = ApcRoutine;
3002 info->apc_arg = ApcContext;
3003
3004 SERVER_START_REQ( read_directory_changes )
3005 {
3006 req->filter = CompletionFilter;
3007 req->want_data = (Buffer != NULL);
3008 req->subtree = WatchTree;
3009 req->async.handle = wine_server_obj_handle( FileHandle );
3010 req->async.callback = wine_server_client_ptr( read_changes_apc );
3011 req->async.iosb = wine_server_client_ptr( IoStatusBlock );
3012 req->async.arg = wine_server_client_ptr( info );
3013 req->async.event = wine_server_obj_handle( Event );
3014 req->async.cvalue = cvalue;
3015 status = wine_server_call( req );
3016 }
3017 SERVER_END_REQ;
3018
3019 if (status != STATUS_PENDING)
3020 RtlFreeHeap( GetProcessHeap(), 0, info );
3021
3022 return status;
3023 }
useful hacks and other patches not (yet) suitable for mainline