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d2d1: Add a helper to set error state.
[wine.git] / dlls / ntdll / directory.c
blobc48b9e97eabb79708e8c7abd274201b6bb4b75b4
1 /*
2 * NTDLL directory functions
3 *
4 * Copyright 1993 Erik Bos
5 * Copyright 2003 Eric Pouech
6 * Copyright 1996, 2004 Alexandre Julliard
7 *
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
12 *
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
21 */
22
23 #include "config.h"
24 #include "wine/port.h"
25
26 #include <assert.h>
27 #include <sys/types.h>
28 #ifdef HAVE_DIRENT_H
29 # include <dirent.h>
30 #endif
31 #include <errno.h>
32 #include <fcntl.h>
33 #include <stdarg.h>
34 #include <string.h>
35 #include <stdlib.h>
36 #include <stdio.h>
37 #include <limits.h>
38 #ifdef HAVE_MNTENT_H
39 #include <mntent.h>
40 #endif
41 #ifdef HAVE_SYS_STAT_H
42 # include <sys/stat.h>
43 #endif
44 #ifdef HAVE_SYS_SYSCALL_H
45 # include <sys/syscall.h>
46 #endif
47 #ifdef HAVE_SYS_ATTR_H
48 #include <sys/attr.h>
49 #endif
50 #ifdef MAJOR_IN_MKDEV
51 # include <sys/mkdev.h>
52 #elif defined(MAJOR_IN_SYSMACROS)
53 # include <sys/sysmacros.h>
54 #endif
55 #ifdef HAVE_SYS_VNODE_H
56 # ifdef HAVE_STDINT_H
57 # include <stdint.h> /* needed for kfreebsd */
58 # endif
59 /* Work around a conflict with Solaris' system list defined in sys/list.h. */
60 #define list SYSLIST
61 #define list_next SYSLIST_NEXT
62 #define list_prev SYSLIST_PREV
63 #define list_head SYSLIST_HEAD
64 #define list_tail SYSLIST_TAIL
65 #define list_move_tail SYSLIST_MOVE_TAIL
66 #define list_remove SYSLIST_REMOVE
67 #include <sys/vnode.h>
68 #undef list
69 #undef list_next
70 #undef list_prev
71 #undef list_head
72 #undef list_tail
73 #undef list_move_tail
74 #undef list_remove
75 #endif
76 #ifdef HAVE_SYS_IOCTL_H
77 #include <sys/ioctl.h>
78 #endif
79 #ifdef HAVE_LINUX_IOCTL_H
80 #include <linux/ioctl.h>
81 #endif
82 #ifdef HAVE_LINUX_MAJOR_H
83 # include <linux/major.h>
84 #endif
85 #ifdef HAVE_SYS_PARAM_H
86 #include <sys/param.h>
87 #endif
88 #ifdef HAVE_SYS_MOUNT_H
89 #include <sys/mount.h>
90 #endif
91 #ifdef HAVE_SYS_STATFS_H
92 #include <sys/statfs.h>
93 #endif
94 #include <time.h>
95 #ifdef HAVE_UNISTD_H
96 # include <unistd.h>
97 #endif
98
99 #include "ntstatus.h"
100 #define WIN32_NO_STATUS
101 #define NONAMELESSUNION
102 #include "windef.h"
103 #include "winnt.h"
104 #include "winternl.h"
105 #include "ddk/wdm.h"
106 #include "ntdll_misc.h"
107 #include "wine/unicode.h"
108 #include "wine/server.h"
109 #include "wine/list.h"
110 #include "wine/library.h"
111 #include "wine/debug.h"
112 #include "wine/exception.h"
113
114 WINE_DEFAULT_DEBUG_CHANNEL(file);
115
116 /* just in case... */
117 #undef VFAT_IOCTL_READDIR_BOTH
118
119 #ifdef linux
120
121 /* We want the real kernel dirent structure, not the libc one */
122 typedef struct
123 {
124 long d_ino;
125 long d_off;
126 unsigned short d_reclen;
127 char d_name[256];
128 } KERNEL_DIRENT;
129
130 /* Define the VFAT ioctl to get both short and long file names */
131 #define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, KERNEL_DIRENT [2] )
132
133 #ifndef O_DIRECTORY
134 # define O_DIRECTORY 0200000 /* must be directory */
135 #endif
136
137 #endif /* linux */
138
139 #define IS_OPTION_TRUE(ch) ((ch) == 'y' || (ch) == 'Y' || (ch) == 't' || (ch) == 'T' || (ch) == '1')
140 #define IS_SEPARATOR(ch) ((ch) == '\\' || (ch) == '/')
141
142 #define INVALID_NT_CHARS '*','?','<','>','|','"'
143 #define INVALID_DOS_CHARS INVALID_NT_CHARS,'+','=',',',';','[',']',' ','\345'
144
145 #define MAX_DIR_ENTRY_LEN 255 /* max length of a directory entry in chars */
146
147 #define MAX_IGNORED_FILES 4
148
149 struct file_identity
150 {
151 dev_t dev;
152 ino_t ino;
153 };
154
155 static struct file_identity ignored_files[MAX_IGNORED_FILES];
156 static unsigned int ignored_files_count;
157
158 union file_directory_info
159 {
160 ULONG next;
161 FILE_DIRECTORY_INFORMATION dir;
162 FILE_BOTH_DIRECTORY_INFORMATION both;
163 FILE_FULL_DIRECTORY_INFORMATION full;
164 FILE_ID_BOTH_DIRECTORY_INFORMATION id_both;
165 FILE_ID_FULL_DIRECTORY_INFORMATION id_full;
166 FILE_ID_GLOBAL_TX_DIR_INFORMATION id_tx;
167 FILE_NAMES_INFORMATION names;
168 };
169
170 struct dir_data_buffer
171 {
172 struct dir_data_buffer *next; /* next buffer in the list */
173 unsigned int size; /* total size of the buffer */
174 unsigned int pos; /* current position in the buffer */
175 char data[1];
176 };
177
178 struct dir_data_names
179 {
180 const WCHAR *long_name; /* long file name in Unicode */
181 const WCHAR *short_name; /* short file name in Unicode */
182 const char *unix_name; /* Unix file name in host encoding */
183 };
184
185 struct dir_data
186 {
187 unsigned int size; /* size of the names array */
188 unsigned int count; /* count of used entries in the names array */
189 unsigned int pos; /* current reading position in the names array */
190 struct file_identity id; /* directory file identity */
191 struct dir_data_names *names; /* directory file names */
192 struct dir_data_buffer *buffer; /* head of data buffers list */
193 };
194
195 static const unsigned int dir_data_buffer_initial_size = 4096;
196 static const unsigned int dir_data_cache_initial_size = 256;
197 static const unsigned int dir_data_names_initial_size = 64;
198
199 static struct dir_data **dir_data_cache;
200 static unsigned int dir_data_cache_size;
201
202 static BOOL show_dot_files;
203 static RTL_RUN_ONCE init_once = RTL_RUN_ONCE_INIT;
204
205 /* at some point we may want to allow Winelib apps to set this */
206 static const BOOL is_case_sensitive = FALSE;
207
208 static struct file_identity windir;
209
210 static RTL_CRITICAL_SECTION dir_section;
211 static RTL_CRITICAL_SECTION_DEBUG critsect_debug =
212 {
213 0, 0, &dir_section,
214 { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
215 0, 0, { (DWORD_PTR)(__FILE__ ": dir_section") }
216 };
217 static RTL_CRITICAL_SECTION dir_section = { &critsect_debug, -1, 0, 0, 0, 0 };
218
219
220 /* check if a given Unicode char is OK in a DOS short name */
221 static inline BOOL is_invalid_dos_char( WCHAR ch )
222 {
223 static const WCHAR invalid_chars[] = { INVALID_DOS_CHARS,'~','.',0 };
224 if (ch > 0x7f) return TRUE;
225 return strchrW( invalid_chars, ch ) != NULL;
226 }
227
228 /* check if the device can be a mounted volume */
229 static inline BOOL is_valid_mounted_device( const struct stat *st )
230 {
231 #if defined(linux) || defined(__sun__)
232 return S_ISBLK( st->st_mode );
233 #else
234 /* disks are char devices on *BSD */
235 return S_ISCHR( st->st_mode );
236 #endif
237 }
238
239 static inline void ignore_file( const char *name )
240 {
241 struct stat st;
242 assert( ignored_files_count < MAX_IGNORED_FILES );
243 if (!stat( name, &st ))
244 {
245 ignored_files[ignored_files_count].dev = st.st_dev;
246 ignored_files[ignored_files_count].ino = st.st_ino;
247 ignored_files_count++;
248 }
249 }
250
251 static inline BOOL is_same_file( const struct file_identity *file, const struct stat *st )
252 {
253 return st->st_dev == file->dev && st->st_ino == file->ino;
254 }
255
256 static inline BOOL is_ignored_file( const struct stat *st )
257 {
258 unsigned int i;
259
260 for (i = 0; i < ignored_files_count; i++)
261 if (is_same_file( &ignored_files[i], st )) return TRUE;
262 return FALSE;
263 }
264
265 static inline unsigned int dir_info_align( unsigned int len )
266 {
267 return (len + 7) & ~7;
268 }
269
270 static inline unsigned int dir_info_size( FILE_INFORMATION_CLASS class, unsigned int len )
271 {
272 switch (class)
273 {
274 case FileDirectoryInformation:
275 return offsetof( FILE_DIRECTORY_INFORMATION, FileName[len] );
276 case FileBothDirectoryInformation:
277 return offsetof( FILE_BOTH_DIRECTORY_INFORMATION, FileName[len] );
278 case FileFullDirectoryInformation:
279 return offsetof( FILE_FULL_DIRECTORY_INFORMATION, FileName[len] );
280 case FileIdBothDirectoryInformation:
281 return offsetof( FILE_ID_BOTH_DIRECTORY_INFORMATION, FileName[len] );
282 case FileIdFullDirectoryInformation:
283 return offsetof( FILE_ID_FULL_DIRECTORY_INFORMATION, FileName[len] );
284 case FileIdGlobalTxDirectoryInformation:
285 return offsetof( FILE_ID_GLOBAL_TX_DIR_INFORMATION, FileName[len] );
286 case FileNamesInformation:
287 return offsetof( FILE_NAMES_INFORMATION, FileName[len] );
288 default:
289 assert(0);
290 return 0;
291 }
292 }
293
294 static inline BOOL has_wildcard( const UNICODE_STRING *mask )
295 {
296 return (!mask ||
297 memchrW( mask->Buffer, '*', mask->Length / sizeof(WCHAR) ) ||
298 memchrW( mask->Buffer, '?', mask->Length / sizeof(WCHAR) ));
299 }
300
301 /* get space from the current directory data buffer, allocating a new one if necessary */
302 static void *get_dir_data_space( struct dir_data *data, unsigned int size )
303 {
304 struct dir_data_buffer *buffer = data->buffer;
305 void *ret;
306
307 if (!buffer || size > buffer->size - buffer->pos)
308 {
309 unsigned int new_size = buffer ? buffer->size * 2 : dir_data_buffer_initial_size;
310 if (new_size < size) new_size = size;
311 if (!(buffer = RtlAllocateHeap( GetProcessHeap(), 0,
312 offsetof( struct dir_data_buffer, data[new_size] ) ))) return NULL;
313 buffer->pos = 0;
314 buffer->size = new_size;
315 buffer->next = data->buffer;
316 data->buffer = buffer;
317 }
318 ret = buffer->data + buffer->pos;
319 buffer->pos += size;
320 return ret;
321 }
322
323 /* add a string to the directory data buffer */
324 static const char *add_dir_data_nameA( struct dir_data *data, const char *name )
325 {
326 /* keep buffer data WCHAR-aligned */
327 char *ptr = get_dir_data_space( data, (strlen( name ) + sizeof(WCHAR)) & ~(sizeof(WCHAR) - 1) );
328 if (ptr) strcpy( ptr, name );
329 return ptr;
330 }
331
332 /* add a Unicode string to the directory data buffer */
333 static const WCHAR *add_dir_data_nameW( struct dir_data *data, const WCHAR *name )
334 {
335 WCHAR *ptr = get_dir_data_space( data, (strlenW( name ) + 1) * sizeof(WCHAR) );
336 if (ptr) strcpyW( ptr, name );
337 return ptr;
338 }
339
340 /* add an entry to the directory names array */
341 static BOOL add_dir_data_names( struct dir_data *data, const WCHAR *long_name,
342 const WCHAR *short_name, const char *unix_name )
343 {
344 static const WCHAR empty[1];
345 struct dir_data_names *names = data->names;
346
347 if (data->count >= data->size)
348 {
349 unsigned int new_size = max( data->size * 2, dir_data_names_initial_size );
350
351 if (names) names = RtlReAllocateHeap( GetProcessHeap(), 0, names, new_size * sizeof(*names) );
352 else names = RtlAllocateHeap( GetProcessHeap(), 0, new_size * sizeof(*names) );
353 if (!names) return FALSE;
354 data->size = new_size;
355 data->names = names;
356 }
357
358 if (short_name[0])
359 {
360 if (!(names[data->count].short_name = add_dir_data_nameW( data, short_name ))) return FALSE;
361 }
362 else names[data->count].short_name = empty;
363
364 if (!(names[data->count].long_name = add_dir_data_nameW( data, long_name ))) return FALSE;
365 if (!(names[data->count].unix_name = add_dir_data_nameA( data, unix_name ))) return FALSE;
366 data->count++;
367 return TRUE;
368 }
369
370 /* free the complete directory data structure */
371 static void free_dir_data( struct dir_data *data )
372 {
373 struct dir_data_buffer *buffer, *next;
374
375 if (!data) return;
376
377 for (buffer = data->buffer; buffer; buffer = next)
378 {
379 next = buffer->next;
380 RtlFreeHeap( GetProcessHeap(), 0, buffer );
381 }
382 RtlFreeHeap( GetProcessHeap(), 0, data->names );
383 RtlFreeHeap( GetProcessHeap(), 0, data );
384 }
385
386
387 /* support for a directory queue for filesystem searches */
388
389 struct dir_name
390 {
391 struct list entry;
392 char name[1];
393 };
394
395 static struct list dir_queue = LIST_INIT( dir_queue );
396
397 static NTSTATUS add_dir_to_queue( const char *name )
398 {
399 int len = strlen( name ) + 1;
400 struct dir_name *dir = RtlAllocateHeap( GetProcessHeap(), 0,
401 FIELD_OFFSET( struct dir_name, name[len] ));
402 if (!dir) return STATUS_NO_MEMORY;
403 strcpy( dir->name, name );
404 list_add_tail( &dir_queue, &dir->entry );
405 return STATUS_SUCCESS;
406 }
407
408 static NTSTATUS next_dir_in_queue( char *name )
409 {
410 struct list *head = list_head( &dir_queue );
411 if (head)
412 {
413 struct dir_name *dir = LIST_ENTRY( head, struct dir_name, entry );
414 strcpy( name, dir->name );
415 list_remove( &dir->entry );
416 RtlFreeHeap( GetProcessHeap(), 0, dir );
417 return STATUS_SUCCESS;
418 }
419 return STATUS_OBJECT_NAME_NOT_FOUND;
420 }
421
422 static void flush_dir_queue(void)
423 {
424 struct list *head;
425
426 while ((head = list_head( &dir_queue )))
427 {
428 struct dir_name *dir = LIST_ENTRY( head, struct dir_name, entry );
429 list_remove( &dir->entry );
430 RtlFreeHeap( GetProcessHeap(), 0, dir );
431 }
432 }
433
434
435 #ifdef __ANDROID__
436
437 static char *unescape_field( char *str )
438 {
439 char *in, *out;
440
441 for (in = out = str; *in; in++, out++)
442 {
443 *out = *in;
444 if (in[0] == '\\')
445 {
446 if (in[1] == '\\')
447 {
448 out[0] = '\\';
449 in++;
450 }
451 else if (in[1] == '0' && in[2] == '4' && in[3] == '0')
452 {
453 out[0] = ' ';
454 in += 3;
455 }
456 else if (in[1] == '0' && in[2] == '1' && in[3] == '1')
457 {
458 out[0] = '\t';
459 in += 3;
460 }
461 else if (in[1] == '0' && in[2] == '1' && in[3] == '2')
462 {
463 out[0] = '\n';
464 in += 3;
465 }
466 else if (in[1] == '1' && in[2] == '3' && in[3] == '4')
467 {
468 out[0] = '\\';
469 in += 3;
470 }
471 }
472 }
473 *out = '\0';
474
475 return str;
476 }
477
478 static inline char *get_field( char **str )
479 {
480 char *ret;
481
482 ret = strsep( str, " \t" );
483 if (*str) *str += strspn( *str, " \t" );
484
485 return ret;
486 }
487 /************************************************************************
488 * getmntent_replacement
489 *
490 * getmntent replacement for Android.
491 *
492 * NB returned static buffer is not thread safe; protect with dir_section.
493 */
494 static struct mntent *getmntent_replacement( FILE *f )
495 {
496 static struct mntent entry;
497 static char buf[4096];
498 char *p, *start;
499
500 do
501 {
502 if (!fgets( buf, sizeof(buf), f )) return NULL;
503 p = strchr( buf, '\n' );
504 if (p) *p = '\0';
505 else /* Partially unread line, move file ptr to end */
506 {
507 char tmp[1024];
508 while (fgets( tmp, sizeof(tmp), f ))
509 if (strchr( tmp, '\n' )) break;
510 }
511 start = buf + strspn( buf, " \t" );
512 } while (start[0] == '\0' || start[0] == '#');
513
514 p = get_field( &start );
515 entry.mnt_fsname = p ? unescape_field( p ) : (char *)"";
516
517 p = get_field( &start );
518 entry.mnt_dir = p ? unescape_field( p ) : (char *)"";
519
520 p = get_field( &start );
521 entry.mnt_type = p ? unescape_field( p ) : (char *)"";
522
523 p = get_field( &start );
524 entry.mnt_opts = p ? unescape_field( p ) : (char *)"";
525
526 p = get_field( &start );
527 entry.mnt_freq = p ? atoi(p) : 0;
528
529 p = get_field( &start );
530 entry.mnt_passno = p ? atoi(p) : 0;
531
532 return &entry;
533 }
534 #define getmntent getmntent_replacement
535 #endif
536
537 /***********************************************************************
538 * DIR_get_drives_info
539 *
540 * Retrieve device/inode number for all the drives. Helper for find_drive_root.
541 */
542 unsigned int DIR_get_drives_info( struct drive_info info[MAX_DOS_DRIVES] )
543 {
544 static struct drive_info cache[MAX_DOS_DRIVES];
545 static time_t last_update;
546 static unsigned int nb_drives;
547 unsigned int ret;
548 time_t now = time(NULL);
549
550 RtlEnterCriticalSection( &dir_section );
551 if (now != last_update)
552 {
553 const char *config_dir = wine_get_config_dir();
554 char *buffer, *p;
555 struct stat st;
556 unsigned int i;
557
558 if ((buffer = RtlAllocateHeap( GetProcessHeap(), 0,
559 strlen(config_dir) + sizeof("/dosdevices/a:") )))
560 {
561 strcpy( buffer, config_dir );
562 strcat( buffer, "/dosdevices/a:" );
563 p = buffer + strlen(buffer) - 2;
564
565 for (i = nb_drives = 0; i < MAX_DOS_DRIVES; i++)
566 {
567 *p = 'a' + i;
568 if (!stat( buffer, &st ))
569 {
570 cache[i].dev = st.st_dev;
571 cache[i].ino = st.st_ino;
572 nb_drives++;
573 }
574 else
575 {
576 cache[i].dev = 0;
577 cache[i].ino = 0;
578 }
579 }
580 RtlFreeHeap( GetProcessHeap(), 0, buffer );
581 }
582 last_update = now;
583 }
584 memcpy( info, cache, sizeof(cache) );
585 ret = nb_drives;
586 RtlLeaveCriticalSection( &dir_section );
587 return ret;
588 }
589
590
591 /***********************************************************************
592 * parse_mount_entries
593 *
594 * Parse mount entries looking for a given device. Helper for get_default_drive_device.
595 */
596
597 #ifdef sun
598 #include <sys/vfstab.h>
599 static char *parse_vfstab_entries( FILE *f, dev_t dev, ino_t ino)
600 {
601 struct vfstab entry;
602 struct stat st;
603 char *device;
604
605 while (! getvfsent( f, &entry ))
606 {
607 /* don't even bother stat'ing network mounts, there's no meaningful device anyway */
608 if (!strcmp( entry.vfs_fstype, "nfs" ) ||
609 !strcmp( entry.vfs_fstype, "smbfs" ) ||
610 !strcmp( entry.vfs_fstype, "ncpfs" )) continue;
611
612 if (stat( entry.vfs_mountp, &st ) == -1) continue;
613 if (st.st_dev != dev || st.st_ino != ino) continue;
614 if (!strcmp( entry.vfs_fstype, "fd" ))
615 {
616 if ((device = strstr( entry.vfs_mntopts, "dev=" )))
617 {
618 char *p = strchr( device + 4, ',' );
619 if (p) *p = 0;
620 return device + 4;
621 }
622 }
623 else
624 return entry.vfs_special;
625 }
626 return NULL;
627 }
628 #endif
629
630 #ifdef linux
631 static char *parse_mount_entries( FILE *f, dev_t dev, ino_t ino )
632 {
633 struct mntent *entry;
634 struct stat st;
635 char *device;
636
637 while ((entry = getmntent( f )))
638 {
639 /* don't even bother stat'ing network mounts, there's no meaningful device anyway */
640 if (!strcmp( entry->mnt_type, "nfs" ) ||
641 !strcmp( entry->mnt_type, "cifs" ) ||
642 !strcmp( entry->mnt_type, "smbfs" ) ||
643 !strcmp( entry->mnt_type, "ncpfs" )) continue;
644
645 if (stat( entry->mnt_dir, &st ) == -1) continue;
646 if (st.st_dev != dev || st.st_ino != ino) continue;
647 if (!strcmp( entry->mnt_type, "supermount" ))
648 {
649 if ((device = strstr( entry->mnt_opts, "dev=" )))
650 {
651 char *p = strchr( device + 4, ',' );
652 if (p) *p = 0;
653 return device + 4;
654 }
655 }
656 else if (!stat( entry->mnt_fsname, &st ) && S_ISREG(st.st_mode))
657 {
658 /* if device is a regular file check for a loop mount */
659 if ((device = strstr( entry->mnt_opts, "loop=" )))
660 {
661 char *p = strchr( device + 5, ',' );
662 if (p) *p = 0;
663 return device + 5;
664 }
665 }
666 else
667 return entry->mnt_fsname;
668 }
669 return NULL;
670 }
671 #endif
672
673 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
674 #include <fstab.h>
675 static char *parse_mount_entries( FILE *f, dev_t dev, ino_t ino )
676 {
677 struct fstab *entry;
678 struct stat st;
679
680 while ((entry = getfsent()))
681 {
682 /* don't even bother stat'ing network mounts, there's no meaningful device anyway */
683 if (!strcmp( entry->fs_vfstype, "nfs" ) ||
684 !strcmp( entry->fs_vfstype, "smbfs" ) ||
685 !strcmp( entry->fs_vfstype, "ncpfs" )) continue;
686
687 if (stat( entry->fs_file, &st ) == -1) continue;
688 if (st.st_dev != dev || st.st_ino != ino) continue;
689 return entry->fs_spec;
690 }
691 return NULL;
692 }
693 #endif
694
695 #ifdef sun
696 #include <sys/mnttab.h>
697 static char *parse_mount_entries( FILE *f, dev_t dev, ino_t ino )
698 {
699 struct mnttab entry;
700 struct stat st;
701 char *device;
702
703
704 while (( ! getmntent( f, &entry) ))
705 {
706 /* don't even bother stat'ing network mounts, there's no meaningful device anyway */
707 if (!strcmp( entry.mnt_fstype, "nfs" ) ||
708 !strcmp( entry.mnt_fstype, "smbfs" ) ||
709 !strcmp( entry.mnt_fstype, "ncpfs" )) continue;
710
711 if (stat( entry.mnt_mountp, &st ) == -1) continue;
712 if (st.st_dev != dev || st.st_ino != ino) continue;
713 if (!strcmp( entry.mnt_fstype, "fd" ))
714 {
715 if ((device = strstr( entry.mnt_mntopts, "dev=" )))
716 {
717 char *p = strchr( device + 4, ',' );
718 if (p) *p = 0;
719 return device + 4;
720 }
721 }
722 else
723 return entry.mnt_special;
724 }
725 return NULL;
726 }
727 #endif
728
729 /***********************************************************************
730 * get_default_drive_device
731 *
732 * Return the default device to use for a given drive mount point.
733 */
734 static char *get_default_drive_device( const char *root )
735 {
736 char *ret = NULL;
737
738 #ifdef linux
739 FILE *f;
740 char *device = NULL;
741 int fd, res = -1;
742 struct stat st;
743
744 /* try to open it first to force it to get mounted */
745 if ((fd = open( root, O_RDONLY | O_DIRECTORY )) != -1)
746 {
747 res = fstat( fd, &st );
748 close( fd );
749 }
750 /* now try normal stat just in case */
751 if (res == -1) res = stat( root, &st );
752 if (res == -1) return NULL;
753
754 RtlEnterCriticalSection( &dir_section );
755
756 #ifdef __ANDROID__
757 if ((f = fopen( "/proc/mounts", "r" )))
758 {
759 device = parse_mount_entries( f, st.st_dev, st.st_ino );
760 fclose( f );
761 }
762 #else
763 if ((f = fopen( "/etc/mtab", "r" )))
764 {
765 device = parse_mount_entries( f, st.st_dev, st.st_ino );
766 fclose( f );
767 }
768 /* look through fstab too in case it's not mounted (for instance if it's an audio CD) */
769 if (!device && (f = fopen( "/etc/fstab", "r" )))
770 {
771 device = parse_mount_entries( f, st.st_dev, st.st_ino );
772 fclose( f );
773 }
774 #endif
775 if (device)
776 {
777 ret = RtlAllocateHeap( GetProcessHeap(), 0, strlen(device) + 1 );
778 if (ret) strcpy( ret, device );
779 }
780 RtlLeaveCriticalSection( &dir_section );
781
782 #elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__ ) || defined(__DragonFly__)
783 char *device = NULL;
784 int fd, res = -1;
785 struct stat st;
786
787 /* try to open it first to force it to get mounted */
788 if ((fd = open( root, O_RDONLY )) != -1)
789 {
790 res = fstat( fd, &st );
791 close( fd );
792 }
793 /* now try normal stat just in case */
794 if (res == -1) res = stat( root, &st );
795 if (res == -1) return NULL;
796
797 RtlEnterCriticalSection( &dir_section );
798
799 /* The FreeBSD parse_mount_entries doesn't require a file argument, so just
800 * pass NULL. Leave the argument in for symmetry.
801 */
802 device = parse_mount_entries( NULL, st.st_dev, st.st_ino );
803 if (device)
804 {
805 ret = RtlAllocateHeap( GetProcessHeap(), 0, strlen(device) + 1 );
806 if (ret) strcpy( ret, device );
807 }
808 RtlLeaveCriticalSection( &dir_section );
809
810 #elif defined( sun )
811 FILE *f;
812 char *device = NULL;
813 int fd, res = -1;
814 struct stat st;
815
816 /* try to open it first to force it to get mounted */
817 if ((fd = open( root, O_RDONLY )) != -1)
818 {
819 res = fstat( fd, &st );
820 close( fd );
821 }
822 /* now try normal stat just in case */
823 if (res == -1) res = stat( root, &st );
824 if (res == -1) return NULL;
825
826 RtlEnterCriticalSection( &dir_section );
827
828 if ((f = fopen( "/etc/mnttab", "r" )))
829 {
830 device = parse_mount_entries( f, st.st_dev, st.st_ino);
831 fclose( f );
832 }
833 /* look through fstab too in case it's not mounted (for instance if it's an audio CD) */
834 if (!device && (f = fopen( "/etc/vfstab", "r" )))
835 {
836 device = parse_vfstab_entries( f, st.st_dev, st.st_ino );
837 fclose( f );
838 }
839 if (device)
840 {
841 ret = RtlAllocateHeap( GetProcessHeap(), 0, strlen(device) + 1 );
842 if (ret) strcpy( ret, device );
843 }
844 RtlLeaveCriticalSection( &dir_section );
845
846 #elif defined(__APPLE__)
847 struct statfs *mntStat;
848 struct stat st;
849 int i;
850 int mntSize;
851 dev_t dev;
852 ino_t ino;
853 static const char path_bsd_device[] = "/dev/disk";
854 int res;
855
856 res = stat( root, &st );
857 if (res == -1) return NULL;
858
859 dev = st.st_dev;
860 ino = st.st_ino;
861
862 RtlEnterCriticalSection( &dir_section );
863
864 mntSize = getmntinfo(&mntStat, MNT_NOWAIT);
865
866 for (i = 0; i < mntSize && !ret; i++)
867 {
868 if (stat(mntStat[i].f_mntonname, &st ) == -1) continue;
869 if (st.st_dev != dev || st.st_ino != ino) continue;
870
871 /* FIXME add support for mounted network drive */
872 if ( strncmp(mntStat[i].f_mntfromname, path_bsd_device, strlen(path_bsd_device)) == 0)
873 {
874 /* set return value to the corresponding raw BSD node */
875 ret = RtlAllocateHeap( GetProcessHeap(), 0, strlen(mntStat[i].f_mntfromname) + 2 /* 2 : r and \0 */ );
876 if (ret)
877 {
878 strcpy(ret, "/dev/r");
879 strcat(ret, mntStat[i].f_mntfromname+sizeof("/dev/")-1);
880 }
881 }
882 }
883 RtlLeaveCriticalSection( &dir_section );
884 #else
885 static int warned;
886 if (!warned++) FIXME( "auto detection of DOS devices not supported on this platform\n" );
887 #endif
888 return ret;
889 }
890
891
892 /***********************************************************************
893 * get_device_mount_point
894 *
895 * Return the current mount point for a device.
896 */
897 static char *get_device_mount_point( dev_t dev )
898 {
899 char *ret = NULL;
900
901 #ifdef linux
902 FILE *f;
903
904 RtlEnterCriticalSection( &dir_section );
905
906 #ifdef __ANDROID__
907 if ((f = fopen( "/proc/mounts", "r" )))
908 #else
909 if ((f = fopen( "/etc/mtab", "r" )))
910 #endif
911 {
912 struct mntent *entry;
913 struct stat st;
914 char *p, *device;
915
916 while ((entry = getmntent( f )))
917 {
918 /* don't even bother stat'ing network mounts, there's no meaningful device anyway */
919 if (!strcmp( entry->mnt_type, "nfs" ) ||
920 !strcmp( entry->mnt_type, "cifs" ) ||
921 !strcmp( entry->mnt_type, "smbfs" ) ||
922 !strcmp( entry->mnt_type, "ncpfs" )) continue;
923
924 if (!strcmp( entry->mnt_type, "supermount" ))
925 {
926 if ((device = strstr( entry->mnt_opts, "dev=" )))
927 {
928 device += 4;
929 if ((p = strchr( device, ',' ))) *p = 0;
930 }
931 }
932 else if (!stat( entry->mnt_fsname, &st ) && S_ISREG(st.st_mode))
933 {
934 /* if device is a regular file check for a loop mount */
935 if ((device = strstr( entry->mnt_opts, "loop=" )))
936 {
937 device += 5;
938 if ((p = strchr( device, ',' ))) *p = 0;
939 }
940 }
941 else device = entry->mnt_fsname;
942
943 if (device && !stat( device, &st ) && S_ISBLK(st.st_mode) && st.st_rdev == dev)
944 {
945 ret = RtlAllocateHeap( GetProcessHeap(), 0, strlen(entry->mnt_dir) + 1 );
946 if (ret) strcpy( ret, entry->mnt_dir );
947 break;
948 }
949 }
950 fclose( f );
951 }
952 RtlLeaveCriticalSection( &dir_section );
953 #elif defined(__APPLE__)
954 struct statfs *entry;
955 struct stat st;
956 int i, size;
957
958 RtlEnterCriticalSection( &dir_section );
959
960 size = getmntinfo( &entry, MNT_NOWAIT );
961 for (i = 0; i < size; i++)
962 {
963 if (stat( entry[i].f_mntfromname, &st ) == -1) continue;
964 if (S_ISBLK(st.st_mode) && st.st_rdev == dev)
965 {
966 ret = RtlAllocateHeap( GetProcessHeap(), 0, strlen(entry[i].f_mntonname) + 1 );
967 if (ret) strcpy( ret, entry[i].f_mntonname );
968 break;
969 }
970 }
971 RtlLeaveCriticalSection( &dir_section );
972 #else
973 static int warned;
974 if (!warned++) FIXME( "unmounting devices not supported on this platform\n" );
975 #endif
976 return ret;
977 }
978
979
980 #if defined(HAVE_GETATTRLIST) && defined(ATTR_VOL_CAPABILITIES) && \
981 defined(VOL_CAPABILITIES_FORMAT) && defined(VOL_CAP_FMT_CASE_SENSITIVE)
982
983 struct get_fsid
984 {
985 ULONG size;
986 dev_t dev;
987 fsid_t fsid;
988 };
989
990 struct fs_cache
991 {
992 dev_t dev;
993 fsid_t fsid;
994 BOOLEAN case_sensitive;
995 } fs_cache[64];
996
997 struct vol_caps
998 {
999 ULONG size;
1000 vol_capabilities_attr_t caps;
1001 };
1002
1003 /***********************************************************************
1004 * look_up_fs_cache
1005 *
1006 * Checks if the specified file system is in the cache.
1007 */
1008 static struct fs_cache *look_up_fs_cache( dev_t dev )
1009 {
1010 int i;
1011 for (i = 0; i < ARRAY_SIZE( fs_cache ); i++)
1012 if (fs_cache[i].dev == dev)
1013 return fs_cache+i;
1014 return NULL;
1015 }
1016
1017 /***********************************************************************
1018 * add_fs_cache
1019 *
1020 * Adds the specified file system to the cache.
1021 */
1022 static void add_fs_cache( dev_t dev, fsid_t fsid, BOOLEAN case_sensitive )
1023 {
1024 int i;
1025 struct fs_cache *entry = look_up_fs_cache( dev );
1026 static int once = 0;
1027 if (entry)
1028 {
1029 /* Update the cache */
1030 entry->fsid = fsid;
1031 entry->case_sensitive = case_sensitive;
1032 return;
1033 }
1034
1035 /* Add a new entry */
1036 for (i = 0; i < ARRAY_SIZE( fs_cache ); i++)
1037 if (fs_cache[i].dev == 0)
1038 {
1039 /* This entry is empty, use it */
1040 fs_cache[i].dev = dev;
1041 fs_cache[i].fsid = fsid;
1042 fs_cache[i].case_sensitive = case_sensitive;
1043 return;
1044 }
1045
1046 /* Cache is out of space, warn */
1047 if (!once++)
1048 WARN( "FS cache is out of space, expect performance problems\n" );
1049 }
1050
1051 /***********************************************************************
1052 * get_dir_case_sensitivity_attr
1053 *
1054 * Checks if the volume containing the specified directory is case
1055 * sensitive or not. Uses getattrlist(2).
1056 */
1057 static int get_dir_case_sensitivity_attr( const char *dir )
1058 {
1059 char *mntpoint;
1060 struct attrlist attr;
1061 struct vol_caps caps;
1062 struct get_fsid get_fsid;
1063 struct fs_cache *entry;
1064
1065 /* First get the FS ID of the volume */
1066 attr.bitmapcount = ATTR_BIT_MAP_COUNT;
1067 attr.reserved = 0;
1068 attr.commonattr = ATTR_CMN_DEVID|ATTR_CMN_FSID;
1069 attr.volattr = attr.dirattr = attr.fileattr = attr.forkattr = 0;
1070 get_fsid.size = 0;
1071 if (getattrlist( dir, &attr, &get_fsid, sizeof(get_fsid), 0 ) != 0 ||
1072 get_fsid.size != sizeof(get_fsid))
1073 return -1;
1074 /* Try to look it up in the cache */
1075 entry = look_up_fs_cache( get_fsid.dev );
1076 if (entry && !memcmp( &entry->fsid, &get_fsid.fsid, sizeof(fsid_t) ))
1077 /* Cache lookup succeeded */
1078 return entry->case_sensitive;
1079 /* Cache is stale at this point, we have to update it */
1080
1081 mntpoint = get_device_mount_point( get_fsid.dev );
1082 /* Now look up the case-sensitivity */
1083 attr.commonattr = 0;
1084 attr.volattr = ATTR_VOL_INFO|ATTR_VOL_CAPABILITIES;
1085 if (getattrlist( mntpoint, &attr, &caps, sizeof(caps), 0 ) < 0)
1086 {
1087 RtlFreeHeap( GetProcessHeap(), 0, mntpoint );
1088 add_fs_cache( get_fsid.dev, get_fsid.fsid, TRUE );
1089 return TRUE;
1090 }
1091 RtlFreeHeap( GetProcessHeap(), 0, mntpoint );
1092 if (caps.size == sizeof(caps) &&
1093 (caps.caps.valid[VOL_CAPABILITIES_FORMAT] &
1094 (VOL_CAP_FMT_CASE_SENSITIVE | VOL_CAP_FMT_CASE_PRESERVING)) ==
1095 (VOL_CAP_FMT_CASE_SENSITIVE | VOL_CAP_FMT_CASE_PRESERVING))
1096 {
1097 BOOLEAN ret;
1098
1099 if ((caps.caps.capabilities[VOL_CAPABILITIES_FORMAT] &
1100 VOL_CAP_FMT_CASE_SENSITIVE) != VOL_CAP_FMT_CASE_SENSITIVE)
1101 ret = FALSE;
1102 else
1103 ret = TRUE;
1104 /* Update the cache */
1105 add_fs_cache( get_fsid.dev, get_fsid.fsid, ret );
1106 return ret;
1107 }
1108 return FALSE;
1109 }
1110 #endif
1111
1112 /***********************************************************************
1113 * get_dir_case_sensitivity_stat
1114 *
1115 * Checks if the volume containing the specified directory is case
1116 * sensitive or not. Uses statfs(2) or statvfs(2).
1117 */
1118 static BOOLEAN get_dir_case_sensitivity_stat( const char *dir )
1119 {
1120 #if defined(__APPLE__) || defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
1121 struct statfs stfs;
1122
1123 if (statfs( dir, &stfs ) == -1) return FALSE;
1124 /* Assume these file systems are always case insensitive on Mac OS.
1125 * For FreeBSD, only assume CIOPFS is case insensitive (AFAIK, Mac OS
1126 * is the only UNIX that supports case-insensitive lookup).
1127 */
1128 if (!strcmp( stfs.f_fstypename, "fusefs" ) &&
1129 !strncmp( stfs.f_mntfromname, "ciopfs", 5 ))
1130 return FALSE;
1131 #ifdef __APPLE__
1132 if (!strcmp( stfs.f_fstypename, "msdos" ) ||
1133 !strcmp( stfs.f_fstypename, "cd9660" ) ||
1134 !strcmp( stfs.f_fstypename, "udf" ) ||
1135 !strcmp( stfs.f_fstypename, "ntfs" ) ||
1136 !strcmp( stfs.f_fstypename, "smbfs" ))
1137 return FALSE;
1138 #ifdef _DARWIN_FEATURE_64_BIT_INODE
1139 if (!strcmp( stfs.f_fstypename, "hfs" ) && (stfs.f_fssubtype == 0 ||
1140 stfs.f_fssubtype == 1 ||
1141 stfs.f_fssubtype == 128))
1142 return FALSE;
1143 #else
1144 /* The field says "reserved", but a quick look at the kernel source
1145 * tells us that this "reserved" field is really the same as the
1146 * "fssubtype" field from the inode64 structure (see munge_statfs()
1147 * in <xnu-source>/bsd/vfs/vfs_syscalls.c).
1148 */
1149 if (!strcmp( stfs.f_fstypename, "hfs" ) && (stfs.f_reserved1 == 0 ||
1150 stfs.f_reserved1 == 1 ||
1151 stfs.f_reserved1 == 128))
1152 return FALSE;
1153 #endif
1154 #endif
1155 return TRUE;
1156
1157 #elif defined(__NetBSD__)
1158 struct statvfs stfs;
1159
1160 if (statvfs( dir, &stfs ) == -1) return FALSE;
1161 /* Only assume CIOPFS is case insensitive. */
1162 if (strcmp( stfs.f_fstypename, "fusefs" ) ||
1163 strncmp( stfs.f_mntfromname, "ciopfs", 5 ))
1164 return TRUE;
1165 return FALSE;
1166
1167 #elif defined(__linux__)
1168 struct statfs stfs;
1169 struct stat st;
1170 char *cifile;
1171
1172 /* Only assume CIOPFS is case insensitive. */
1173 if (statfs( dir, &stfs ) == -1) return FALSE;
1174 if (stfs.f_type != 0x65735546 /* FUSE_SUPER_MAGIC */)
1175 return TRUE;
1176 /* Normally, we'd have to parse the mtab to find out exactly what
1177 * kind of FUSE FS this is. But, someone on wine-devel suggested
1178 * a shortcut. We'll stat a special file in the directory. If it's
1179 * there, we'll assume it's a CIOPFS, else not.
1180 * This will break if somebody puts a file named ".ciopfs" in a non-
1181 * CIOPFS directory.
1182 */
1183 cifile = RtlAllocateHeap( GetProcessHeap(), 0, strlen( dir )+sizeof("/.ciopfs") );
1184 if (!cifile) return TRUE;
1185 strcpy( cifile, dir );
1186 strcat( cifile, "/.ciopfs" );
1187 if (stat( cifile, &st ) == 0)
1188 {
1189 RtlFreeHeap( GetProcessHeap(), 0, cifile );
1190 return FALSE;
1191 }
1192 RtlFreeHeap( GetProcessHeap(), 0, cifile );
1193 return TRUE;
1194 #else
1195 return TRUE;
1196 #endif
1197 }
1198
1199
1200 /***********************************************************************
1201 * get_dir_case_sensitivity
1202 *
1203 * Checks if the volume containing the specified directory is case
1204 * sensitive or not. Uses statfs(2) or statvfs(2).
1205 */
1206 static BOOLEAN get_dir_case_sensitivity( const char *dir )
1207 {
1208 #if defined(HAVE_GETATTRLIST) && defined(ATTR_VOL_CAPABILITIES) && \
1209 defined(VOL_CAPABILITIES_FORMAT) && defined(VOL_CAP_FMT_CASE_SENSITIVE)
1210 int case_sensitive = get_dir_case_sensitivity_attr( dir );
1211 if (case_sensitive != -1) return case_sensitive;
1212 #endif
1213 return get_dir_case_sensitivity_stat( dir );
1214 }
1215
1216
1217 /***********************************************************************
1218 * init_options
1219 *
1220 * Initialize the show_dot_files options.
1221 */
1222 static DWORD WINAPI init_options( RTL_RUN_ONCE *once, void *param, void **context )
1223 {
1224 static const WCHAR WineW[] = {'S','o','f','t','w','a','r','e','\\','W','i','n','e',0};
1225 static const WCHAR ShowDotFilesW[] = {'S','h','o','w','D','o','t','F','i','l','e','s',0};
1226 char tmp[80];
1227 HANDLE root, hkey;
1228 DWORD dummy;
1229 OBJECT_ATTRIBUTES attr;
1230 UNICODE_STRING nameW;
1231
1232 RtlOpenCurrentUser( KEY_ALL_ACCESS, &root );
1233 attr.Length = sizeof(attr);
1234 attr.RootDirectory = root;
1235 attr.ObjectName = &nameW;
1236 attr.Attributes = 0;
1237 attr.SecurityDescriptor = NULL;
1238 attr.SecurityQualityOfService = NULL;
1239 RtlInitUnicodeString( &nameW, WineW );
1240
1241 /* @@ Wine registry key: HKCU\Software\Wine */
1242 if (!NtOpenKey( &hkey, KEY_ALL_ACCESS, &attr ))
1243 {
1244 RtlInitUnicodeString( &nameW, ShowDotFilesW );
1245 if (!NtQueryValueKey( hkey, &nameW, KeyValuePartialInformation, tmp, sizeof(tmp), &dummy ))
1246 {
1247 WCHAR *str = (WCHAR *)((KEY_VALUE_PARTIAL_INFORMATION *)tmp)->Data;
1248 show_dot_files = IS_OPTION_TRUE( str[0] );
1249 }
1250 NtClose( hkey );
1251 }
1252 NtClose( root );
1253
1254 /* a couple of directories that we don't want to return in directory searches */
1255 ignore_file( wine_get_config_dir() );
1256 ignore_file( "/dev" );
1257 ignore_file( "/proc" );
1258 #ifdef linux
1259 ignore_file( "/sys" );
1260 #endif
1261 return TRUE;
1262 }
1263
1264
1265 /***********************************************************************
1266 * DIR_is_hidden_file
1267 *
1268 * Check if the specified file should be hidden based on its name and the show dot files option.
1269 */
1270 BOOL DIR_is_hidden_file( const UNICODE_STRING *name )
1271 {
1272 WCHAR *p, *end;
1273
1274 RtlRunOnceExecuteOnce( &init_once, init_options, NULL, NULL );
1275
1276 if (show_dot_files) return FALSE;
1277
1278 end = p = name->Buffer + name->Length/sizeof(WCHAR);
1279 while (p > name->Buffer && IS_SEPARATOR(p[-1])) p--;
1280 while (p > name->Buffer && !IS_SEPARATOR(p[-1])) p--;
1281 if (p == end || *p != '.') return FALSE;
1282 /* make sure it isn't '.' or '..' */
1283 if (p + 1 == end) return FALSE;
1284 if (p[1] == '.' && p + 2 == end) return FALSE;
1285 return TRUE;
1286 }
1287
1288
1289 /***********************************************************************
1290 * hash_short_file_name
1291 *
1292 * Transform a Unix file name into a hashed DOS name. If the name is a valid
1293 * DOS name, it is converted to upper-case; otherwise it is replaced by a
1294 * hashed version that fits in 8.3 format.
1295 * 'buffer' must be at least 12 characters long.
1296 * Returns length of short name in bytes; short name is NOT null-terminated.
1297 */
1298 static ULONG hash_short_file_name( const UNICODE_STRING *name, LPWSTR buffer )
1299 {
1300 static const char hash_chars[32] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ012345";
1301
1302 LPCWSTR p, ext, end = name->Buffer + name->Length / sizeof(WCHAR);
1303 LPWSTR dst;
1304 unsigned short hash;
1305 int i;
1306
1307 /* Compute the hash code of the file name */
1308 /* If you know something about hash functions, feel free to */
1309 /* insert a better algorithm here... */
1310 if (!is_case_sensitive)
1311 {
1312 for (p = name->Buffer, hash = 0xbeef; p < end - 1; p++)
1313 hash = (hash<<3) ^ (hash>>5) ^ tolowerW(*p) ^ (tolowerW(p[1]) << 8);
1314 hash = (hash<<3) ^ (hash>>5) ^ tolowerW(*p); /* Last character */
1315 }
1316 else
1317 {
1318 for (p = name->Buffer, hash = 0xbeef; p < end - 1; p++)
1319 hash = (hash << 3) ^ (hash >> 5) ^ *p ^ (p[1] << 8);
1320 hash = (hash << 3) ^ (hash >> 5) ^ *p; /* Last character */
1321 }
1322
1323 /* Find last dot for start of the extension */
1324 for (p = name->Buffer + 1, ext = NULL; p < end - 1; p++) if (*p == '.') ext = p;
1325
1326 /* Copy first 4 chars, replacing invalid chars with '_' */
1327 for (i = 4, p = name->Buffer, dst = buffer; i > 0; i--, p++)
1328 {
1329 if (p == end || p == ext) break;
1330 *dst++ = is_invalid_dos_char(*p) ? '_' : toupperW(*p);
1331 }
1332 /* Pad to 5 chars with '~' */
1333 while (i-- >= 0) *dst++ = '~';
1334
1335 /* Insert hash code converted to 3 ASCII chars */
1336 *dst++ = hash_chars[(hash >> 10) & 0x1f];
1337 *dst++ = hash_chars[(hash >> 5) & 0x1f];
1338 *dst++ = hash_chars[hash & 0x1f];
1339
1340 /* Copy the first 3 chars of the extension (if any) */
1341 if (ext)
1342 {
1343 *dst++ = '.';
1344 for (i = 3, ext++; (i > 0) && ext < end; i--, ext++)
1345 *dst++ = is_invalid_dos_char(*ext) ? '_' : toupperW(*ext);
1346 }
1347 return dst - buffer;
1348 }
1349
1350
1351 /***********************************************************************
1352 * match_filename
1353 *
1354 * Check a long file name against a mask.
1355 *
1356 * Tests (done in W95 DOS shell - case insensitive):
1357 * *.txt test1.test.txt *
1358 * *st1* test1.txt *
1359 * *.t??????.t* test1.ta.tornado.txt *
1360 * *tornado* test1.ta.tornado.txt *
1361 * t*t test1.ta.tornado.txt *
1362 * ?est* test1.txt *
1363 * ?est??? test1.txt -
1364 * *test1.txt* test1.txt *
1365 * h?l?o*t.dat hellothisisatest.dat *
1366 */
1367 static BOOLEAN match_filename( const UNICODE_STRING *name_str, const UNICODE_STRING *mask_str )
1368 {
1369 BOOL mismatch;
1370 const WCHAR *name = name_str->Buffer;
1371 const WCHAR *mask = mask_str->Buffer;
1372 const WCHAR *name_end = name + name_str->Length / sizeof(WCHAR);
1373 const WCHAR *mask_end = mask + mask_str->Length / sizeof(WCHAR);
1374 const WCHAR *lastjoker = NULL;
1375 const WCHAR *next_to_retry = NULL;
1376
1377 while (name < name_end && mask < mask_end)
1378 {
1379 switch(*mask)
1380 {
1381 case '*':
1382 mask++;
1383 while (mask < mask_end && *mask == '*') mask++; /* Skip consecutive '*' */
1384 if (mask == mask_end) return TRUE; /* end of mask is all '*', so match */
1385 lastjoker = mask;
1386
1387 /* skip to the next match after the joker(s) */
1388 if (is_case_sensitive)
1389 while (name < name_end && (*name != *mask)) name++;
1390 else
1391 while (name < name_end && (toupperW(*name) != toupperW(*mask))) name++;
1392 next_to_retry = name;
1393 break;
1394 case '?':
1395 mask++;
1396 name++;
1397 break;
1398 default:
1399 if (is_case_sensitive) mismatch = (*mask != *name);
1400 else mismatch = (toupperW(*mask) != toupperW(*name));
1401
1402 if (!mismatch)
1403 {
1404 mask++;
1405 name++;
1406 if (mask == mask_end)
1407 {
1408 if (name == name_end) return TRUE;
1409 if (lastjoker) mask = lastjoker;
1410 }
1411 }
1412 else /* mismatch ! */
1413 {
1414 if (lastjoker) /* we had an '*', so we can try unlimitedly */
1415 {
1416 mask = lastjoker;
1417
1418 /* this scan sequence was a mismatch, so restart
1419 * 1 char after the first char we checked last time */
1420 next_to_retry++;
1421 name = next_to_retry;
1422 }
1423 else return FALSE; /* bad luck */
1424 }
1425 break;
1426 }
1427 }
1428 while (mask < mask_end && ((*mask == '.') || (*mask == '*')))
1429 mask++; /* Ignore trailing '.' or '*' in mask */
1430 return (name == name_end && mask == mask_end);
1431 }
1432
1433
1434 /***********************************************************************
1435 * append_entry
1436 *
1437 * Add a file to the directory data if it matches the mask.
1438 */
1439 static BOOL append_entry( struct dir_data *data, const char *long_name,
1440 const char *short_name, const UNICODE_STRING *mask )
1441 {
1442 int i, long_len, short_len;
1443 WCHAR long_nameW[MAX_DIR_ENTRY_LEN + 1];
1444 WCHAR short_nameW[13];
1445 UNICODE_STRING str;
1446
1447 long_len = ntdll_umbstowcs( 0, long_name, strlen(long_name), long_nameW, MAX_DIR_ENTRY_LEN );
1448 if (long_len == -1) return TRUE;
1449 long_nameW[long_len] = 0;
1450
1451 str.Buffer = long_nameW;
1452 str.Length = long_len * sizeof(WCHAR);
1453 str.MaximumLength = sizeof(long_nameW);
1454
1455 if (short_name)
1456 {
1457 short_len = ntdll_umbstowcs( 0, short_name, strlen(short_name),
1458 short_nameW, ARRAY_SIZE( short_nameW ) - 1 );
1459 if (short_len == -1) short_len = ARRAY_SIZE( short_nameW ) - 1;
1460 for (i = 0; i < short_len; i++) short_nameW[i] = toupperW( short_nameW[i] );
1461 }
1462 else /* generate a short name if necessary */
1463 {
1464 BOOLEAN spaces;
1465
1466 short_len = 0;
1467 if (!RtlIsNameLegalDOS8Dot3( &str, NULL, &spaces ) || spaces)
1468 short_len = hash_short_file_name( &str, short_nameW );
1469 }
1470 short_nameW[short_len] = 0;
1471
1472 TRACE( "long %s short %s mask %s\n",
1473 debugstr_w( long_nameW ), debugstr_w( short_nameW ), debugstr_us( mask ));
1474
1475 if (mask && !match_filename( &str, mask ))
1476 {
1477 if (!short_len) return TRUE; /* no short name to match */
1478 str.Buffer = short_nameW;
1479 str.Length = short_len * sizeof(WCHAR);
1480 str.MaximumLength = sizeof(short_nameW);
1481 if (!match_filename( &str, mask )) return TRUE;
1482 }
1483
1484 return add_dir_data_names( data, long_nameW, short_nameW, long_name );
1485 }
1486
1487
1488 /***********************************************************************
1489 * get_dir_data_entry
1490 *
1491 * Return a directory entry from the cached data.
1492 */
1493 static NTSTATUS get_dir_data_entry( struct dir_data *dir_data, void *info_ptr, IO_STATUS_BLOCK *io,
1494 ULONG max_length, FILE_INFORMATION_CLASS class,
1495 union file_directory_info **last_info )
1496 {
1497 const struct dir_data_names *names = &dir_data->names[dir_data->pos];
1498 union file_directory_info *info;
1499 struct stat st;
1500 ULONG name_len, start, dir_size, attributes;
1501
1502 if (get_file_info( names->unix_name, &st, &attributes ) == -1)
1503 {
1504 TRACE( "file no longer exists %s\n", names->unix_name );
1505 return STATUS_SUCCESS;
1506 }
1507 if (is_ignored_file( &st ))
1508 {
1509 TRACE( "ignoring file %s\n", names->unix_name );
1510 return STATUS_SUCCESS;
1511 }
1512 start = dir_info_align( io->Information );
1513 dir_size = dir_info_size( class, 0 );
1514 if (start + dir_size > max_length) return STATUS_MORE_ENTRIES;
1515
1516 max_length -= start + dir_size;
1517 name_len = strlenW( names->long_name ) * sizeof(WCHAR);
1518 /* if this is not the first entry, fail; the first entry is always returned (but truncated) */
1519 if (*last_info && name_len > max_length) return STATUS_MORE_ENTRIES;
1520
1521 info = (union file_directory_info *)((char *)info_ptr + start);
1522 info->dir.NextEntryOffset = 0;
1523 info->dir.FileIndex = 0; /* NTFS always has 0 here, so let's not bother with it */
1524
1525 /* all the structures except FileNamesInformation start with a FileDirectoryInformation layout */
1526 if (class != FileNamesInformation)
1527 {
1528 if (st.st_dev != dir_data->id.dev) st.st_ino = 0; /* ignore inode if on a different device */
1529
1530 if (!show_dot_files && names->long_name[0] == '.' && names->long_name[1] &&
1531 (names->long_name[1] != '.' || names->long_name[2]))
1532 attributes |= FILE_ATTRIBUTE_HIDDEN;
1533
1534 fill_file_info( &st, attributes, info, class );
1535 }
1536
1537 switch (class)
1538 {
1539 case FileDirectoryInformation:
1540 info->dir.FileNameLength = name_len;
1541 break;
1542
1543 case FileFullDirectoryInformation:
1544 info->full.EaSize = 0; /* FIXME */
1545 info->full.FileNameLength = name_len;
1546 break;
1547
1548 case FileIdFullDirectoryInformation:
1549 info->id_full.EaSize = 0; /* FIXME */
1550 info->id_full.FileNameLength = name_len;
1551 break;
1552
1553 case FileBothDirectoryInformation:
1554 info->both.EaSize = 0; /* FIXME */
1555 info->both.ShortNameLength = strlenW( names->short_name ) * sizeof(WCHAR);
1556 memcpy( info->both.ShortName, names->short_name, info->both.ShortNameLength );
1557 info->both.FileNameLength = name_len;
1558 break;
1559
1560 case FileIdBothDirectoryInformation:
1561 info->id_both.EaSize = 0; /* FIXME */
1562 info->id_both.ShortNameLength = strlenW( names->short_name ) * sizeof(WCHAR);
1563 memcpy( info->id_both.ShortName, names->short_name, info->id_both.ShortNameLength );
1564 info->id_both.FileNameLength = name_len;
1565 break;
1566
1567 case FileIdGlobalTxDirectoryInformation:
1568 info->id_tx.TxInfoFlags = 0;
1569 info->id_tx.FileNameLength = name_len;
1570 break;
1571
1572 case FileNamesInformation:
1573 info->names.FileNameLength = name_len;
1574 break;
1575
1576 default:
1577 assert(0);
1578 return 0;
1579 }
1580
1581 memcpy( (char *)info + dir_size, names->long_name, min( name_len, max_length ) );
1582 io->Information = start + dir_size + min( name_len, max_length );
1583 if (*last_info) (*last_info)->next = (char *)info - (char *)*last_info;
1584 *last_info = info;
1585 return name_len > max_length ? STATUS_BUFFER_OVERFLOW : STATUS_SUCCESS;
1586 }
1587
1588 #ifdef VFAT_IOCTL_READDIR_BOTH
1589
1590 /***********************************************************************
1591 * start_vfat_ioctl
1592 *
1593 * Wrapper for the VFAT ioctl to work around various kernel bugs.
1594 * dir_section must be held by caller.
1595 */
1596 static KERNEL_DIRENT *start_vfat_ioctl( int fd )
1597 {
1598 static KERNEL_DIRENT *de;
1599 int res;
1600
1601 if (!de)
1602 {
1603 SIZE_T size = 2 * sizeof(*de) + page_size;
1604 void *addr = NULL;
1605
1606 if (NtAllocateVirtualMemory( GetCurrentProcess(), &addr, 1, &size, MEM_RESERVE, PAGE_READWRITE ))
1607 return NULL;
1608 /* commit only the size needed for the dir entries */
1609 /* this leaves an extra unaccessible page, which should make the kernel */
1610 /* fail with -EFAULT before it stomps all over our memory */
1611 de = addr;
1612 size = 2 * sizeof(*de);
1613 NtAllocateVirtualMemory( GetCurrentProcess(), &addr, 1, &size, MEM_COMMIT, PAGE_READWRITE );
1614 }
1615
1616 /* set d_reclen to 65535 to work around an AFS kernel bug */
1617 de[0].d_reclen = 65535;
1618 res = ioctl( fd, VFAT_IOCTL_READDIR_BOTH, (long)de );
1619 if (res == -1)
1620 {
1621 if (errno != ENOENT) return NULL; /* VFAT ioctl probably not supported */
1622 de[0].d_reclen = 0; /* eof */
1623 }
1624 else if (!res && de[0].d_reclen == 65535) return NULL; /* AFS bug */
1625
1626 return de;
1627 }
1628
1629
1630 /***********************************************************************
1631 * read_directory_vfat
1632 *
1633 * Read a directory using the VFAT ioctl; helper for NtQueryDirectoryFile.
1634 */
1635 static NTSTATUS read_directory_data_vfat( struct dir_data *data, int fd, const UNICODE_STRING *mask )
1636 {
1637 char *short_name, *long_name;
1638 size_t len;
1639 KERNEL_DIRENT *de;
1640 NTSTATUS status = STATUS_NO_MEMORY;
1641 off_t old_pos = lseek( fd, 0, SEEK_CUR );
1642
1643 if (!(de = start_vfat_ioctl( fd ))) return STATUS_NOT_SUPPORTED;
1644
1645 lseek( fd, 0, SEEK_SET );
1646
1647 if (!append_entry( data, ".", NULL, mask )) goto done;
1648 if (!append_entry( data, "..", NULL, mask )) goto done;
1649
1650 while (ioctl( fd, VFAT_IOCTL_READDIR_BOTH, (long)de ) != -1)
1651 {
1652 if (!de[0].d_reclen) break; /* eof */
1653
1654 /* make sure names are null-terminated to work around an x86-64 kernel bug */
1655 len = min( de[0].d_reclen, sizeof(de[0].d_name) - 1 );
1656 de[0].d_name[len] = 0;
1657 len = min( de[1].d_reclen, sizeof(de[1].d_name) - 1 );
1658 de[1].d_name[len] = 0;
1659
1660 if (!strcmp( de[0].d_name, "." ) || !strcmp( de[0].d_name, ".." )) continue;
1661 if (de[1].d_name[0])
1662 {
1663 short_name = de[0].d_name;
1664 long_name = de[1].d_name;
1665 }
1666 else
1667 {
1668 long_name = de[0].d_name;
1669 short_name = NULL;
1670 }
1671 if (!append_entry( data, long_name, short_name, mask )) goto done;
1672 }
1673 status = STATUS_SUCCESS;
1674 done:
1675 lseek( fd, old_pos, SEEK_SET );
1676 return status;
1677 }
1678 #endif /* VFAT_IOCTL_READDIR_BOTH */
1679
1680
1681 #ifdef HAVE_GETATTRLIST
1682 /***********************************************************************
1683 * read_directory_getattrlist
1684 *
1685 * Read a single file from a directory by determining whether the file
1686 * identified by mask exists using getattrlist.
1687 */
1688 static NTSTATUS read_directory_data_getattrlist( struct dir_data *data, const char *unix_name )
1689 {
1690 struct attrlist attrlist;
1691 #include "pshpack4.h"
1692 struct
1693 {
1694 u_int32_t length;
1695 struct attrreference name_reference;
1696 fsobj_type_t type;
1697 char name[NAME_MAX * 3 + 1];
1698 } buffer;
1699 #include "poppack.h"
1700
1701 memset( &attrlist, 0, sizeof(attrlist) );
1702 attrlist.bitmapcount = ATTR_BIT_MAP_COUNT;
1703 attrlist.commonattr = ATTR_CMN_NAME | ATTR_CMN_OBJTYPE;
1704 if (getattrlist( unix_name, &attrlist, &buffer, sizeof(buffer), FSOPT_NOFOLLOW ) == -1)
1705 return STATUS_NO_SUCH_FILE;
1706 /* If unix_name named a symlink, the above may have succeeded even if the symlink is broken.
1707 Check that with another call without FSOPT_NOFOLLOW. We don't ask for any attributes. */
1708 if (buffer.type == VLNK)
1709 {
1710 u_int32_t dummy;
1711 attrlist.commonattr = 0;
1712 if (getattrlist( unix_name, &attrlist, &dummy, sizeof(dummy), 0 ) == -1)
1713 return STATUS_NO_SUCH_FILE;
1714 }
1715
1716 TRACE( "found %s\n", buffer.name );
1717
1718 if (!append_entry( data, buffer.name, NULL, NULL )) return STATUS_NO_MEMORY;
1719
1720 return STATUS_SUCCESS;
1721 }
1722 #endif /* HAVE_GETATTRLIST */
1723
1724
1725 /***********************************************************************
1726 * read_directory_stat
1727 *
1728 * Read a single file from a directory by determining whether the file
1729 * identified by mask exists using stat.
1730 */
1731 static NTSTATUS read_directory_data_stat( struct dir_data *data, const char *unix_name )
1732 {
1733 struct stat st;
1734
1735 /* if the file system is not case sensitive we can't find the actual name through stat() */
1736 if (!get_dir_case_sensitivity(".")) return STATUS_NO_SUCH_FILE;
1737 if (stat( unix_name, &st ) == -1) return STATUS_NO_SUCH_FILE;
1738
1739 TRACE( "found %s\n", unix_name );
1740
1741 if (!append_entry( data, unix_name, NULL, NULL )) return STATUS_NO_MEMORY;
1742
1743 return STATUS_SUCCESS;
1744 }
1745
1746
1747 /***********************************************************************
1748 * read_directory_readdir
1749 *
1750 * Read a directory using the POSIX readdir interface; helper for NtQueryDirectoryFile.
1751 */
1752 static NTSTATUS read_directory_data_readdir( struct dir_data *data, const UNICODE_STRING *mask )
1753 {
1754 struct dirent *de;
1755 NTSTATUS status = STATUS_NO_MEMORY;
1756 DIR *dir = opendir( "." );
1757
1758 if (!dir) return STATUS_NO_SUCH_FILE;
1759
1760 if (!append_entry( data, ".", NULL, mask )) goto done;
1761 if (!append_entry( data, "..", NULL, mask )) goto done;
1762 while ((de = readdir( dir )))
1763 {
1764 if (!strcmp( de->d_name, "." ) || !strcmp( de->d_name, ".." )) continue;
1765 if (!append_entry( data, de->d_name, NULL, mask )) goto done;
1766 }
1767 status = STATUS_SUCCESS;
1768
1769 done:
1770 closedir( dir );
1771 return status;
1772 }
1773
1774
1775 /***********************************************************************
1776 * read_directory_data
1777 *
1778 * Read the full contents of a directory, using one of the above helper functions.
1779 */
1780 static NTSTATUS read_directory_data( struct dir_data *data, int fd, const UNICODE_STRING *mask )
1781 {
1782 NTSTATUS status;
1783
1784 #ifdef VFAT_IOCTL_READDIR_BOTH
1785 if (!(status = read_directory_data_vfat( data, fd, mask ))) return status;
1786 #endif
1787
1788 if (!has_wildcard( mask ))
1789 {
1790 /* convert the mask to a Unix name and check for it */
1791 int ret, used_default;
1792 char unix_name[MAX_DIR_ENTRY_LEN * 3 + 1];
1793
1794 ret = ntdll_wcstoumbs( 0, mask->Buffer, mask->Length / sizeof(WCHAR),
1795 unix_name, sizeof(unix_name) - 1, NULL, &used_default );
1796 if (ret > 0 && !used_default)
1797 {
1798 unix_name[ret] = 0;
1799 #ifdef HAVE_GETATTRLIST
1800 if (!(status = read_directory_data_getattrlist( data, unix_name ))) return status;
1801 #endif
1802 if (!(status = read_directory_data_stat( data, unix_name ))) return status;
1803 }
1804 }
1805
1806 return read_directory_data_readdir( data, mask );
1807 }
1808
1809
1810 /* compare file names for directory sorting */
1811 static int name_compare( const void *a, const void *b )
1812 {
1813 const struct dir_data_names *file_a = (const struct dir_data_names *)a;
1814 const struct dir_data_names *file_b = (const struct dir_data_names *)b;
1815 int ret = RtlCompareUnicodeStrings( file_a->long_name, strlenW(file_a->long_name),
1816 file_b->long_name, strlenW(file_b->long_name), TRUE );
1817 if (!ret) ret = strcmpW( file_a->long_name, file_b->long_name );
1818 return ret;
1819 }
1820
1821
1822 /***********************************************************************
1823 * init_cached_dir_data
1824 *
1825 * Initialize the cached directory contents.
1826 */
1827 static NTSTATUS init_cached_dir_data( struct dir_data **data_ret, int fd, const UNICODE_STRING *mask )
1828 {
1829 struct dir_data *data;
1830 struct stat st;
1831 NTSTATUS status;
1832 unsigned int i;
1833
1834 if (!(data = RtlAllocateHeap( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*data) )))
1835 return STATUS_NO_MEMORY;
1836
1837 if ((status = read_directory_data( data, fd, mask )))
1838 {
1839 free_dir_data( data );
1840 return status;
1841 }
1842
1843 /* sort filenames, but not "." and ".." */
1844 i = 0;
1845 if (i < data->count && !strcmp( data->names[i].unix_name, "." )) i++;
1846 if (i < data->count && !strcmp( data->names[i].unix_name, ".." )) i++;
1847 if (i < data->count) qsort( data->names + i, data->count - i, sizeof(*data->names), name_compare );
1848
1849 if (data->count)
1850 {
1851 /* release unused space */
1852 if (data->buffer)
1853 RtlReAllocateHeap( GetProcessHeap(), HEAP_REALLOC_IN_PLACE_ONLY, data->buffer,
1854 offsetof( struct dir_data_buffer, data[data->buffer->pos] ));
1855 if (data->count < data->size)
1856 RtlReAllocateHeap( GetProcessHeap(), HEAP_REALLOC_IN_PLACE_ONLY, data->names,
1857 data->count * sizeof(*data->names) );
1858 if (!fstat( fd, &st ))
1859 {
1860 data->id.dev = st.st_dev;
1861 data->id.ino = st.st_ino;
1862 }
1863 }
1864
1865 TRACE( "mask %s found %u files\n", debugstr_us( mask ), data->count );
1866 for (i = 0; i < data->count; i++)
1867 TRACE( "%s %s\n", debugstr_w(data->names[i].long_name), debugstr_w(data->names[i].short_name) );
1868
1869 *data_ret = data;
1870 return data->count ? STATUS_SUCCESS : STATUS_NO_SUCH_FILE;
1871 }
1872
1873
1874 /***********************************************************************
1875 * get_cached_dir_data
1876 *
1877 * Retrieve the cached directory data, or initialize it if necessary.
1878 */
1879 static NTSTATUS get_cached_dir_data( HANDLE handle, struct dir_data **data_ret, int fd,
1880 const UNICODE_STRING *mask )
1881 {
1882 unsigned int i;
1883 int entry = -1, free_entries[16];
1884 NTSTATUS status;
1885
1886 SERVER_START_REQ( get_directory_cache_entry )
1887 {
1888 req->handle = wine_server_obj_handle( handle );
1889 wine_server_set_reply( req, free_entries, sizeof(free_entries) );
1890 if (!(status = wine_server_call( req ))) entry = reply->entry;
1891
1892 for (i = 0; i < wine_server_reply_size( reply ) / sizeof(*free_entries); i++)
1893 {
1894 int free_idx = free_entries[i];
1895 if (free_idx < dir_data_cache_size)
1896 {
1897 free_dir_data( dir_data_cache[free_idx] );
1898 dir_data_cache[free_idx] = NULL;
1899 }
1900 }
1901 }
1902 SERVER_END_REQ;
1903
1904 if (status)
1905 {
1906 if (status == STATUS_SHARING_VIOLATION) FIXME( "shared directory handle not supported yet\n" );
1907 return status;
1908 }
1909
1910 if (entry >= dir_data_cache_size)
1911 {
1912 unsigned int size = max( dir_data_cache_initial_size, max( dir_data_cache_size * 2, entry + 1 ) );
1913 struct dir_data **new_cache;
1914
1915 if (dir_data_cache)
1916 new_cache = RtlReAllocateHeap( GetProcessHeap(), HEAP_ZERO_MEMORY, dir_data_cache,
1917 size * sizeof(*new_cache) );
1918 else
1919 new_cache = RtlAllocateHeap( GetProcessHeap(), HEAP_ZERO_MEMORY, size * sizeof(*new_cache) );
1920 if (!new_cache) return STATUS_NO_MEMORY;
1921 dir_data_cache = new_cache;
1922 dir_data_cache_size = size;
1923 }
1924
1925 if (!dir_data_cache[entry]) status = init_cached_dir_data( &dir_data_cache[entry], fd, mask );
1926
1927 *data_ret = dir_data_cache[entry];
1928 return status;
1929 }
1930
1931
1932 /******************************************************************************
1933 * NtQueryDirectoryFile [NTDLL.@]
1934 * ZwQueryDirectoryFile [NTDLL.@]
1935 */
1936 NTSTATUS WINAPI NtQueryDirectoryFile( HANDLE handle, HANDLE event,
1937 PIO_APC_ROUTINE apc_routine, PVOID apc_context,
1938 PIO_STATUS_BLOCK io,
1939 PVOID buffer, ULONG length,
1940 FILE_INFORMATION_CLASS info_class,
1941 BOOLEAN single_entry,
1942 PUNICODE_STRING mask,
1943 BOOLEAN restart_scan )
1944 {
1945 int cwd, fd, needs_close;
1946 struct dir_data *data;
1947 NTSTATUS status;
1948
1949 TRACE("(%p %p %p %p %p %p 0x%08x 0x%08x 0x%08x %s 0x%08x\n",
1950 handle, event, apc_routine, apc_context, io, buffer,
1951 length, info_class, single_entry, debugstr_us(mask),
1952 restart_scan);
1953
1954 if (event || apc_routine)
1955 {
1956 FIXME( "Unsupported yet option\n" );
1957 return STATUS_NOT_IMPLEMENTED;
1958 }
1959 switch (info_class)
1960 {
1961 case FileDirectoryInformation:
1962 case FileBothDirectoryInformation:
1963 case FileFullDirectoryInformation:
1964 case FileIdBothDirectoryInformation:
1965 case FileIdFullDirectoryInformation:
1966 case FileIdGlobalTxDirectoryInformation:
1967 case FileNamesInformation:
1968 if (length < dir_info_align( dir_info_size( info_class, 1 ))) return STATUS_INFO_LENGTH_MISMATCH;
1969 break;
1970 case FileObjectIdInformation:
1971 if (length != sizeof(FILE_OBJECTID_INFORMATION)) return STATUS_INFO_LENGTH_MISMATCH;
1972 return STATUS_INVALID_INFO_CLASS;
1973 case FileQuotaInformation:
1974 if (length != sizeof(FILE_QUOTA_INFORMATION)) return STATUS_INFO_LENGTH_MISMATCH;
1975 return STATUS_INVALID_INFO_CLASS;
1976 case FileReparsePointInformation:
1977 if (length != sizeof(FILE_REPARSE_POINT_INFORMATION)) return STATUS_INFO_LENGTH_MISMATCH;
1978 return STATUS_INVALID_INFO_CLASS;
1979 default:
1980 return STATUS_INVALID_INFO_CLASS;
1981 }
1982 if (!buffer) return STATUS_ACCESS_VIOLATION;
1983
1984 if ((status = server_get_unix_fd( handle, FILE_LIST_DIRECTORY, &fd, &needs_close, NULL, NULL )) != STATUS_SUCCESS)
1985 return status;
1986
1987 io->Information = 0;
1988
1989 RtlRunOnceExecuteOnce( &init_once, init_options, NULL, NULL );
1990
1991 RtlEnterCriticalSection( &dir_section );
1992
1993 cwd = open( ".", O_RDONLY );
1994 if (fchdir( fd ) != -1)
1995 {
1996 if (!(status = get_cached_dir_data( handle, &data, fd, mask )))
1997 {
1998 union file_directory_info *last_info = NULL;
1999
2000 if (restart_scan) data->pos = 0;
2001
2002 while (!status && data->pos < data->count)
2003 {
2004 status = get_dir_data_entry( data, buffer, io, length, info_class, &last_info );
2005 if (!status || status == STATUS_BUFFER_OVERFLOW) data->pos++;
2006 if (single_entry) break;
2007 }
2008
2009 if (!last_info) status = STATUS_NO_MORE_FILES;
2010 else if (status == STATUS_MORE_ENTRIES) status = STATUS_SUCCESS;
2011
2012 io->u.Status = status;
2013 }
2014 if (cwd == -1 || fchdir( cwd ) == -1) chdir( "/" );
2015 }
2016 else status = FILE_GetNtStatus();
2017
2018 RtlLeaveCriticalSection( &dir_section );
2019
2020 if (needs_close) close( fd );
2021 if (cwd != -1) close( cwd );
2022 TRACE( "=> %x (%ld)\n", status, io->Information );
2023 return status;
2024 }
2025
2026
2027 /***********************************************************************
2028 * find_file_in_dir
2029 *
2030 * Find a file in a directory the hard way, by doing a case-insensitive search.
2031 * The file found is appended to unix_name at pos.
2032 * There must be at least MAX_DIR_ENTRY_LEN+2 chars available at pos.
2033 */
2034 static NTSTATUS find_file_in_dir( char *unix_name, int pos, const WCHAR *name, int length,
2035 BOOLEAN check_case, BOOLEAN *is_win_dir )
2036 {
2037 WCHAR buffer[MAX_DIR_ENTRY_LEN];
2038 UNICODE_STRING str;
2039 BOOLEAN spaces, is_name_8_dot_3;
2040 DIR *dir;
2041 struct dirent *de;
2042 struct stat st;
2043 int ret, used_default;
2044
2045 /* try a shortcut for this directory */
2046
2047 unix_name[pos++] = '/';
2048 ret = ntdll_wcstoumbs( 0, name, length, unix_name + pos, MAX_DIR_ENTRY_LEN,
2049 NULL, &used_default );
2050 /* if we used the default char, the Unix name won't round trip properly back to Unicode */
2051 /* so it cannot match the file we are looking for */
2052 if (ret >= 0 && !used_default)
2053 {
2054 unix_name[pos + ret] = 0;
2055 if (!stat( unix_name, &st ))
2056 {
2057 if (is_win_dir) *is_win_dir = is_same_file( &windir, &st );
2058 return STATUS_SUCCESS;
2059 }
2060 }
2061 if (check_case) goto not_found; /* we want an exact match */
2062
2063 if (pos > 1) unix_name[pos - 1] = 0;
2064 else unix_name[1] = 0; /* keep the initial slash */
2065
2066 /* check if it fits in 8.3 so that we don't look for short names if we won't need them */
2067
2068 str.Buffer = (WCHAR *)name;
2069 str.Length = length * sizeof(WCHAR);
2070 str.MaximumLength = str.Length;
2071 is_name_8_dot_3 = RtlIsNameLegalDOS8Dot3( &str, NULL, &spaces ) && !spaces;
2072 #ifndef VFAT_IOCTL_READDIR_BOTH
2073 is_name_8_dot_3 = is_name_8_dot_3 && length >= 8 && name[4] == '~';
2074 #endif
2075
2076 if (!is_name_8_dot_3 && !get_dir_case_sensitivity( unix_name )) goto not_found;
2077
2078 /* now look for it through the directory */
2079
2080 #ifdef VFAT_IOCTL_READDIR_BOTH
2081 if (is_name_8_dot_3)
2082 {
2083 int fd = open( unix_name, O_RDONLY | O_DIRECTORY );
2084 if (fd != -1)
2085 {
2086 KERNEL_DIRENT *kde;
2087
2088 RtlEnterCriticalSection( &dir_section );
2089 if ((kde = start_vfat_ioctl( fd )))
2090 {
2091 unix_name[pos - 1] = '/';
2092 while (kde[0].d_reclen)
2093 {
2094 /* make sure names are null-terminated to work around an x86-64 kernel bug */
2095 size_t len = min(kde[0].d_reclen, sizeof(kde[0].d_name) - 1 );
2096 kde[0].d_name[len] = 0;
2097 len = min(kde[1].d_reclen, sizeof(kde[1].d_name) - 1 );
2098 kde[1].d_name[len] = 0;
2099
2100 if (kde[1].d_name[0])
2101 {
2102 ret = ntdll_umbstowcs( 0, kde[1].d_name, strlen(kde[1].d_name),
2103 buffer, MAX_DIR_ENTRY_LEN );
2104 if (ret == length && !memicmpW( buffer, name, length))
2105 {
2106 strcpy( unix_name + pos, kde[1].d_name );
2107 RtlLeaveCriticalSection( &dir_section );
2108 close( fd );
2109 goto success;
2110 }
2111 }
2112 ret = ntdll_umbstowcs( 0, kde[0].d_name, strlen(kde[0].d_name),
2113 buffer, MAX_DIR_ENTRY_LEN );
2114 if (ret == length && !memicmpW( buffer, name, length))
2115 {
2116 strcpy( unix_name + pos,
2117 kde[1].d_name[0] ? kde[1].d_name : kde[0].d_name );
2118 RtlLeaveCriticalSection( &dir_section );
2119 close( fd );
2120 goto success;
2121 }
2122 if (ioctl( fd, VFAT_IOCTL_READDIR_BOTH, (long)kde ) == -1)
2123 {
2124 RtlLeaveCriticalSection( &dir_section );
2125 close( fd );
2126 goto not_found;
2127 }
2128 }
2129 }
2130 RtlLeaveCriticalSection( &dir_section );
2131 close( fd );
2132 }
2133 /* fall through to normal handling */
2134 }
2135 #endif /* VFAT_IOCTL_READDIR_BOTH */
2136
2137 if (!(dir = opendir( unix_name )))
2138 {
2139 if (errno == ENOENT) return STATUS_OBJECT_PATH_NOT_FOUND;
2140 else return FILE_GetNtStatus();
2141 }
2142 unix_name[pos - 1] = '/';
2143 str.Buffer = buffer;
2144 str.MaximumLength = sizeof(buffer);
2145 while ((de = readdir( dir )))
2146 {
2147 ret = ntdll_umbstowcs( 0, de->d_name, strlen(de->d_name), buffer, MAX_DIR_ENTRY_LEN );
2148 if (ret == length && !memicmpW( buffer, name, length ))
2149 {
2150 strcpy( unix_name + pos, de->d_name );
2151 closedir( dir );
2152 goto success;
2153 }
2154
2155 if (!is_name_8_dot_3) continue;
2156
2157 str.Length = ret * sizeof(WCHAR);
2158 if (!RtlIsNameLegalDOS8Dot3( &str, NULL, &spaces ) || spaces)
2159 {
2160 WCHAR short_nameW[12];
2161 ret = hash_short_file_name( &str, short_nameW );
2162 if (ret == length && !memicmpW( short_nameW, name, length ))
2163 {
2164 strcpy( unix_name + pos, de->d_name );
2165 closedir( dir );
2166 goto success;
2167 }
2168 }
2169 }
2170 closedir( dir );
2171
2172 not_found:
2173 unix_name[pos - 1] = 0;
2174 return STATUS_OBJECT_PATH_NOT_FOUND;
2175
2176 success:
2177 if (is_win_dir && !stat( unix_name, &st )) *is_win_dir = is_same_file( &windir, &st );
2178 return STATUS_SUCCESS;
2179 }
2180
2181
2182 #ifndef _WIN64
2183
2184 static const WCHAR catrootW[] = {'s','y','s','t','e','m','3','2','\\','c','a','t','r','o','o','t',0};
2185 static const WCHAR catroot2W[] = {'s','y','s','t','e','m','3','2','\\','c','a','t','r','o','o','t','2',0};
2186 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};
2187 static const WCHAR driversetcW[] = {'s','y','s','t','e','m','3','2','\\','d','r','i','v','e','r','s','\\','e','t','c',0};
2188 static const WCHAR logfilesW[] = {'s','y','s','t','e','m','3','2','\\','l','o','g','f','i','l','e','s',0};
2189 static const WCHAR spoolW[] = {'s','y','s','t','e','m','3','2','\\','s','p','o','o','l',0};
2190 static const WCHAR system32W[] = {'s','y','s','t','e','m','3','2',0};
2191 static const WCHAR syswow64W[] = {'s','y','s','w','o','w','6','4',0};
2192 static const WCHAR sysnativeW[] = {'s','y','s','n','a','t','i','v','e',0};
2193 static const WCHAR regeditW[] = {'r','e','g','e','d','i','t','.','e','x','e',0};
2194 static const WCHAR wow_regeditW[] = {'s','y','s','w','o','w','6','4','\\','r','e','g','e','d','i','t','.','e','x','e',0};
2195
2196 static struct
2197 {
2198 const WCHAR *source;
2199 const WCHAR *dos_target;
2200 const char *unix_target;
2201 } redirects[] =
2202 {
2203 { catrootW, NULL, NULL },
2204 { catroot2W, NULL, NULL },
2205 { driversstoreW, NULL, NULL },
2206 { driversetcW, NULL, NULL },
2207 { logfilesW, NULL, NULL },
2208 { spoolW, NULL, NULL },
2209 { system32W, syswow64W, NULL },
2210 { sysnativeW, system32W, NULL },
2211 { regeditW, wow_regeditW, NULL }
2212 };
2213
2214 static unsigned int nb_redirects;
2215
2216
2217 /***********************************************************************
2218 * get_redirect_target
2219 *
2220 * Find the target unix name for a redirected dir.
2221 */
2222 static const char *get_redirect_target( const char *windows_dir, const WCHAR *name )
2223 {
2224 int used_default, len, pos, win_len = strlen( windows_dir );
2225 char *unix_name, *unix_target = NULL;
2226 NTSTATUS status;
2227
2228 if (!(unix_name = RtlAllocateHeap( GetProcessHeap(), 0, win_len + MAX_DIR_ENTRY_LEN + 2 )))
2229 return NULL;
2230 memcpy( unix_name, windows_dir, win_len );
2231 pos = win_len;
2232
2233 while (*name)
2234 {
2235 const WCHAR *end, *next;
2236
2237 for (end = name; *end; end++) if (IS_SEPARATOR(*end)) break;
2238 for (next = end; *next; next++) if (!IS_SEPARATOR(*next)) break;
2239
2240 status = find_file_in_dir( unix_name, pos, name, end - name, FALSE, NULL );
2241 if (status == STATUS_OBJECT_PATH_NOT_FOUND && !*next) /* not finding last element is ok */
2242 {
2243 len = ntdll_wcstoumbs( 0, name, end - name, unix_name + pos + 1,
2244 MAX_DIR_ENTRY_LEN - (pos - win_len), NULL, &used_default );
2245 if (len > 0 && !used_default)
2246 {
2247 unix_name[pos] = '/';
2248 pos += len + 1;
2249 unix_name[pos] = 0;
2250 break;
2251 }
2252 }
2253 if (status) goto done;
2254 pos += strlen( unix_name + pos );
2255 name = next;
2256 }
2257
2258 if ((unix_target = RtlAllocateHeap( GetProcessHeap(), 0, pos - win_len )))
2259 memcpy( unix_target, unix_name + win_len + 1, pos - win_len );
2260
2261 done:
2262 RtlFreeHeap( GetProcessHeap(), 0, unix_name );
2263 return unix_target;
2264 }
2265
2266
2267 /***********************************************************************
2268 * init_redirects
2269 */
2270 static void init_redirects(void)
2271 {
2272 UNICODE_STRING nt_name;
2273 ANSI_STRING unix_name;
2274 NTSTATUS status;
2275 struct stat st;
2276 unsigned int i;
2277
2278 if (!RtlDosPathNameToNtPathName_U( user_shared_data->NtSystemRoot, &nt_name, NULL, NULL ))
2279 {
2280 ERR( "can't convert %s\n", debugstr_w(user_shared_data->NtSystemRoot) );
2281 return;
2282 }
2283 status = wine_nt_to_unix_file_name( &nt_name, &unix_name, FILE_OPEN_IF, FALSE );
2284 RtlFreeUnicodeString( &nt_name );
2285 if (status)
2286 {
2287 ERR( "cannot open %s (%x)\n", debugstr_w(user_shared_data->NtSystemRoot), status );
2288 return;
2289 }
2290 if (!stat( unix_name.Buffer, &st ))
2291 {
2292 windir.dev = st.st_dev;
2293 windir.ino = st.st_ino;
2294 nb_redirects = ARRAY_SIZE( redirects );
2295 for (i = 0; i < nb_redirects; i++)
2296 {
2297 if (!redirects[i].dos_target) continue;
2298 redirects[i].unix_target = get_redirect_target( unix_name.Buffer, redirects[i].dos_target );
2299 TRACE( "%s -> %s\n", debugstr_w(redirects[i].source), redirects[i].unix_target );
2300 }
2301 }
2302 RtlFreeAnsiString( &unix_name );
2303
2304 }
2305
2306
2307 /***********************************************************************
2308 * match_redirect
2309 *
2310 * Check if path matches a redirect name. If yes, return matched length.
2311 */
2312 static int match_redirect( const WCHAR *path, int len, const WCHAR *redir, BOOLEAN check_case )
2313 {
2314 int i = 0;
2315
2316 while (i < len && *redir)
2317 {
2318 if (IS_SEPARATOR(path[i]))
2319 {
2320 if (*redir++ != '\\') return 0;
2321 while (i < len && IS_SEPARATOR(path[i])) i++;
2322 continue; /* move on to next path component */
2323 }
2324 else if (check_case)
2325 {
2326 if (path[i] != *redir) return 0;
2327 }
2328 else
2329 {
2330 if (tolowerW(path[i]) != tolowerW(*redir)) return 0;
2331 }
2332 i++;
2333 redir++;
2334 }
2335 if (*redir) return 0;
2336 if (i < len && !IS_SEPARATOR(path[i])) return 0;
2337 while (i < len && IS_SEPARATOR(path[i])) i++;
2338 return i;
2339 }
2340
2341
2342 /***********************************************************************
2343 * get_redirect_path
2344 *
2345 * Retrieve the Unix path corresponding to a redirected path if any.
2346 */
2347 static int get_redirect_path( char *unix_name, int pos, const WCHAR *name, int length, BOOLEAN check_case )
2348 {
2349 unsigned int i;
2350 int len;
2351
2352 for (i = 0; i < nb_redirects; i++)
2353 {
2354 if ((len = match_redirect( name, length, redirects[i].source, check_case )))
2355 {
2356 if (!redirects[i].unix_target) break;
2357 unix_name[pos++] = '/';
2358 strcpy( unix_name + pos, redirects[i].unix_target );
2359 return len;
2360 }
2361 }
2362 return 0;
2363 }
2364
2365 #else /* _WIN64 */
2366
2367 /* there are no redirects on 64-bit */
2368
2369 static const unsigned int nb_redirects = 0;
2370
2371 static int get_redirect_path( char *unix_name, int pos, const WCHAR *name, int length, BOOLEAN check_case )
2372 {
2373 return 0;
2374 }
2375
2376 #endif
2377
2378 /***********************************************************************
2379 * init_directories
2380 */
2381 void init_directories(void)
2382 {
2383 #ifndef _WIN64
2384 if (is_wow64) init_redirects();
2385 #endif
2386 }
2387
2388
2389 /******************************************************************************
2390 * get_dos_device
2391 *
2392 * Get the Unix path of a DOS device.
2393 */
2394 static NTSTATUS get_dos_device( const WCHAR *name, UINT name_len, ANSI_STRING *unix_name_ret )
2395 {
2396 const char *config_dir = wine_get_config_dir();
2397 struct stat st;
2398 char *unix_name, *new_name, *dev;
2399 unsigned int i;
2400 int unix_len;
2401
2402 /* make sure the device name is ASCII */
2403 for (i = 0; i < name_len; i++)
2404 if (name[i] <= 32 || name[i] >= 127) return STATUS_BAD_DEVICE_TYPE;
2405
2406 unix_len = strlen(config_dir) + sizeof("/dosdevices/") + name_len + 1;
2407
2408 if (!(unix_name = RtlAllocateHeap( GetProcessHeap(), 0, unix_len )))
2409 return STATUS_NO_MEMORY;
2410
2411 strcpy( unix_name, config_dir );
2412 strcat( unix_name, "/dosdevices/" );
2413 dev = unix_name + strlen(unix_name);
2414
2415 for (i = 0; i < name_len; i++) dev[i] = (char)tolowerW(name[i]);
2416 dev[i] = 0;
2417
2418 /* special case for drive devices */
2419 if (name_len == 2 && dev[1] == ':')
2420 {
2421 dev[i++] = ':';
2422 dev[i] = 0;
2423 }
2424
2425 for (;;)
2426 {
2427 if (!stat( unix_name, &st ))
2428 {
2429 TRACE( "%s -> %s\n", debugstr_wn(name,name_len), debugstr_a(unix_name) );
2430 unix_name_ret->Buffer = unix_name;
2431 unix_name_ret->Length = strlen(unix_name);
2432 unix_name_ret->MaximumLength = unix_len;
2433 return STATUS_SUCCESS;
2434 }
2435 if (!dev) break;
2436
2437 /* now try some defaults for it */
2438 if (!strcmp( dev, "aux" ))
2439 {
2440 strcpy( dev, "com1" );
2441 continue;
2442 }
2443 if (!strcmp( dev, "prn" ))
2444 {
2445 strcpy( dev, "lpt1" );
2446 continue;
2447 }
2448
2449 new_name = NULL;
2450 if (dev[1] == ':' && dev[2] == ':') /* drive device */
2451 {
2452 dev[2] = 0; /* remove last ':' to get the drive mount point symlink */
2453 new_name = get_default_drive_device( unix_name );
2454 }
2455
2456 if (!new_name) break;
2457
2458 RtlFreeHeap( GetProcessHeap(), 0, unix_name );
2459 unix_name = new_name;
2460 unix_len = strlen(unix_name) + 1;
2461 dev = NULL; /* last try */
2462 }
2463 RtlFreeHeap( GetProcessHeap(), 0, unix_name );
2464 return STATUS_BAD_DEVICE_TYPE;
2465 }
2466
2467
2468 /* return the length of the DOS namespace prefix if any */
2469 static inline int get_dos_prefix_len( const UNICODE_STRING *name )
2470 {
2471 static const WCHAR nt_prefixW[] = {'\\','?','?','\\'};
2472 static const WCHAR dosdev_prefixW[] = {'\\','D','o','s','D','e','v','i','c','e','s','\\'};
2473
2474 if (name->Length >= sizeof(nt_prefixW) &&
2475 !memcmp( name->Buffer, nt_prefixW, sizeof(nt_prefixW) ))
2476 return ARRAY_SIZE( nt_prefixW );
2477
2478 if (name->Length >= sizeof(dosdev_prefixW) &&
2479 !memicmpW( name->Buffer, dosdev_prefixW, ARRAY_SIZE( dosdev_prefixW )))
2480 return ARRAY_SIZE( dosdev_prefixW );
2481
2482 return 0;
2483 }
2484
2485
2486 /******************************************************************************
2487 * find_file_id
2488 *
2489 * Recursively search directories from the dir queue for a given inode.
2490 */
2491 static NTSTATUS find_file_id( ANSI_STRING *unix_name, ULONGLONG file_id, dev_t dev )
2492 {
2493 unsigned int pos;
2494 DIR *dir;
2495 struct dirent *de;
2496 NTSTATUS status;
2497 struct stat st;
2498
2499 while (!(status = next_dir_in_queue( unix_name->Buffer )))
2500 {
2501 if (!(dir = opendir( unix_name->Buffer ))) continue;
2502 TRACE( "searching %s for %s\n", unix_name->Buffer, wine_dbgstr_longlong(file_id) );
2503 pos = strlen( unix_name->Buffer );
2504 if (pos + MAX_DIR_ENTRY_LEN >= unix_name->MaximumLength/sizeof(WCHAR))
2505 {
2506 char *new = RtlReAllocateHeap( GetProcessHeap(), 0, unix_name->Buffer,
2507 unix_name->MaximumLength * 2 );
2508 if (!new)
2509 {
2510 closedir( dir );
2511 return STATUS_NO_MEMORY;
2512 }
2513 unix_name->MaximumLength *= 2;
2514 unix_name->Buffer = new;
2515 }
2516 unix_name->Buffer[pos++] = '/';
2517 while ((de = readdir( dir )))
2518 {
2519 if (!strcmp( de->d_name, "." ) || !strcmp( de->d_name, ".." )) continue;
2520 strcpy( unix_name->Buffer + pos, de->d_name );
2521 if (lstat( unix_name->Buffer, &st ) == -1) continue;
2522 if (st.st_dev != dev) continue;
2523 if (st.st_ino == file_id)
2524 {
2525 closedir( dir );
2526 return STATUS_SUCCESS;
2527 }
2528 if (!S_ISDIR( st.st_mode )) continue;
2529 if ((status = add_dir_to_queue( unix_name->Buffer )) != STATUS_SUCCESS)
2530 {
2531 closedir( dir );
2532 return status;
2533 }
2534 }
2535 closedir( dir );
2536 }
2537 return status;
2538 }
2539
2540
2541 /******************************************************************************
2542 * file_id_to_unix_file_name
2543 *
2544 * Lookup a file from its file id instead of its name.
2545 */
2546 NTSTATUS file_id_to_unix_file_name( const OBJECT_ATTRIBUTES *attr, ANSI_STRING *unix_name )
2547 {
2548 enum server_fd_type type;
2549 int old_cwd, root_fd, needs_close;
2550 NTSTATUS status;
2551 ULONGLONG file_id;
2552 struct stat st, root_st;
2553
2554 if (attr->ObjectName->Length != sizeof(ULONGLONG)) return STATUS_OBJECT_PATH_SYNTAX_BAD;
2555 if (!attr->RootDirectory) return STATUS_INVALID_PARAMETER;
2556 memcpy( &file_id, attr->ObjectName->Buffer, sizeof(file_id) );
2557
2558 unix_name->MaximumLength = 2 * MAX_DIR_ENTRY_LEN + 4;
2559 if (!(unix_name->Buffer = RtlAllocateHeap( GetProcessHeap(), 0, unix_name->MaximumLength )))
2560 return STATUS_NO_MEMORY;
2561 strcpy( unix_name->Buffer, "." );
2562
2563 if ((status = server_get_unix_fd( attr->RootDirectory, 0, &root_fd, &needs_close, &type, NULL )))
2564 goto done;
2565
2566 if (type != FD_TYPE_DIR)
2567 {
2568 status = STATUS_OBJECT_TYPE_MISMATCH;
2569 goto done;
2570 }
2571
2572 fstat( root_fd, &root_st );
2573 if (root_st.st_ino == file_id) /* shortcut for "." */
2574 {
2575 status = STATUS_SUCCESS;
2576 goto done;
2577 }
2578
2579 RtlEnterCriticalSection( &dir_section );
2580 if ((old_cwd = open( ".", O_RDONLY )) != -1 && fchdir( root_fd ) != -1)
2581 {
2582 /* shortcut for ".." */
2583 if (!stat( "..", &st ) && st.st_dev == root_st.st_dev && st.st_ino == file_id)
2584 {
2585 strcpy( unix_name->Buffer, ".." );
2586 status = STATUS_SUCCESS;
2587 }
2588 else
2589 {
2590 status = add_dir_to_queue( "." );
2591 if (!status)
2592 status = find_file_id( unix_name, file_id, root_st.st_dev );
2593 if (!status) /* get rid of "./" prefix */
2594 memmove( unix_name->Buffer, unix_name->Buffer + 2, strlen(unix_name->Buffer) - 1 );
2595 flush_dir_queue();
2596 }
2597 if (fchdir( old_cwd ) == -1) chdir( "/" );
2598 }
2599 else status = FILE_GetNtStatus();
2600 RtlLeaveCriticalSection( &dir_section );
2601 if (old_cwd != -1) close( old_cwd );
2602
2603 done:
2604 if (status == STATUS_SUCCESS)
2605 {
2606 TRACE( "%s -> %s\n", wine_dbgstr_longlong(file_id), debugstr_a(unix_name->Buffer) );
2607 unix_name->Length = strlen( unix_name->Buffer );
2608 }
2609 else
2610 {
2611 TRACE( "%s not found in dir %p\n", wine_dbgstr_longlong(file_id), attr->RootDirectory );
2612 RtlFreeHeap( GetProcessHeap(), 0, unix_name->Buffer );
2613 }
2614 if (needs_close) close( root_fd );
2615 return status;
2616 }
2617
2618
2619 /******************************************************************************
2620 * lookup_unix_name
2621 *
2622 * Helper for nt_to_unix_file_name
2623 */
2624 static NTSTATUS lookup_unix_name( const WCHAR *name, int name_len, char **buffer, int unix_len, int pos,
2625 UINT disposition, BOOLEAN check_case )
2626 {
2627 NTSTATUS status;
2628 int ret, used_default, len;
2629 struct stat st;
2630 char *unix_name = *buffer;
2631 const BOOL redirect = nb_redirects && ntdll_get_thread_data()->wow64_redir;
2632
2633 /* try a shortcut first */
2634
2635 ret = ntdll_wcstoumbs( 0, name, name_len, unix_name + pos, unix_len - pos - 1,
2636 NULL, &used_default );
2637
2638 while (name_len && IS_SEPARATOR(*name))
2639 {
2640 name++;
2641 name_len--;
2642 }
2643
2644 if (ret >= 0 && !used_default) /* if we used the default char the name didn't convert properly */
2645 {
2646 char *p;
2647 unix_name[pos + ret] = 0;
2648 for (p = unix_name + pos ; *p; p++) if (*p == '\\') *p = '/';
2649 if (!redirect || (!strstr( unix_name, "/windows/") && strncmp( unix_name, "windows/", 8 )))
2650 {
2651 if (!stat( unix_name, &st ))
2652 {
2653 /* creation fails with STATUS_ACCESS_DENIED for the root of the drive */
2654 if (disposition == FILE_CREATE)
2655 return name_len ? STATUS_OBJECT_NAME_COLLISION : STATUS_ACCESS_DENIED;
2656 return STATUS_SUCCESS;
2657 }
2658 }
2659 }
2660
2661 if (!name_len) /* empty name -> drive root doesn't exist */
2662 return STATUS_OBJECT_PATH_NOT_FOUND;
2663 if (check_case && !redirect && (disposition == FILE_OPEN || disposition == FILE_OVERWRITE))
2664 return STATUS_OBJECT_NAME_NOT_FOUND;
2665
2666 /* now do it component by component */
2667
2668 while (name_len)
2669 {
2670 const WCHAR *end, *next;
2671 BOOLEAN is_win_dir = FALSE;
2672
2673 end = name;
2674 while (end < name + name_len && !IS_SEPARATOR(*end)) end++;
2675 next = end;
2676 while (next < name + name_len && IS_SEPARATOR(*next)) next++;
2677 name_len -= next - name;
2678
2679 /* grow the buffer if needed */
2680
2681 if (unix_len - pos < MAX_DIR_ENTRY_LEN + 2)
2682 {
2683 char *new_name;
2684 unix_len += 2 * MAX_DIR_ENTRY_LEN;
2685 if (!(new_name = RtlReAllocateHeap( GetProcessHeap(), 0, unix_name, unix_len )))
2686 return STATUS_NO_MEMORY;
2687 unix_name = *buffer = new_name;
2688 }
2689
2690 status = find_file_in_dir( unix_name, pos, name, end - name,
2691 check_case, redirect ? &is_win_dir : NULL );
2692
2693 /* if this is the last element, not finding it is not necessarily fatal */
2694 if (!name_len)
2695 {
2696 if (status == STATUS_OBJECT_PATH_NOT_FOUND)
2697 {
2698 status = STATUS_OBJECT_NAME_NOT_FOUND;
2699 if (disposition != FILE_OPEN && disposition != FILE_OVERWRITE)
2700 {
2701 ret = ntdll_wcstoumbs( 0, name, end - name, unix_name + pos + 1,
2702 MAX_DIR_ENTRY_LEN, NULL, &used_default );
2703 if (ret > 0 && !used_default)
2704 {
2705 unix_name[pos] = '/';
2706 unix_name[pos + 1 + ret] = 0;
2707 status = STATUS_NO_SUCH_FILE;
2708 break;
2709 }
2710 }
2711 }
2712 else if (status == STATUS_SUCCESS && disposition == FILE_CREATE)
2713 {
2714 status = STATUS_OBJECT_NAME_COLLISION;
2715 }
2716 }
2717
2718 if (status != STATUS_SUCCESS) break;
2719
2720 pos += strlen( unix_name + pos );
2721 name = next;
2722
2723 if (is_win_dir && (len = get_redirect_path( unix_name, pos, name, name_len, check_case )))
2724 {
2725 name += len;
2726 name_len -= len;
2727 pos += strlen( unix_name + pos );
2728 TRACE( "redirecting -> %s + %s\n", debugstr_a(unix_name), debugstr_w(name) );
2729 }
2730 }
2731
2732 return status;
2733 }
2734
2735
2736 /******************************************************************************
2737 * nt_to_unix_file_name_attr
2738 */
2739 NTSTATUS nt_to_unix_file_name_attr( const OBJECT_ATTRIBUTES *attr, ANSI_STRING *unix_name_ret,
2740 UINT disposition )
2741 {
2742 static const WCHAR invalid_charsW[] = { INVALID_NT_CHARS, 0 };
2743 enum server_fd_type type;
2744 int old_cwd, root_fd, needs_close;
2745 const WCHAR *name, *p;
2746 char *unix_name;
2747 int name_len, unix_len;
2748 NTSTATUS status;
2749 BOOLEAN check_case = !(attr->Attributes & OBJ_CASE_INSENSITIVE);
2750
2751 if (!attr->RootDirectory) /* without root dir fall back to normal lookup */
2752 return wine_nt_to_unix_file_name( attr->ObjectName, unix_name_ret, disposition, check_case );
2753
2754 name = attr->ObjectName->Buffer;
2755 name_len = attr->ObjectName->Length / sizeof(WCHAR);
2756
2757 if (name_len && IS_SEPARATOR(name[0])) return STATUS_INVALID_PARAMETER;
2758
2759 /* check for invalid characters */
2760 for (p = name; p < name + name_len; p++)
2761 if (*p < 32 || strchrW( invalid_charsW, *p )) return STATUS_OBJECT_NAME_INVALID;
2762
2763 unix_len = ntdll_wcstoumbs( 0, name, name_len, NULL, 0, NULL, NULL );
2764 unix_len += MAX_DIR_ENTRY_LEN + 3;
2765 if (!(unix_name = RtlAllocateHeap( GetProcessHeap(), 0, unix_len )))
2766 return STATUS_NO_MEMORY;
2767 unix_name[0] = '.';
2768
2769 if (!(status = server_get_unix_fd( attr->RootDirectory, 0, &root_fd, &needs_close, &type, NULL )))
2770 {
2771 if (type != FD_TYPE_DIR)
2772 {
2773 if (needs_close) close( root_fd );
2774 status = STATUS_BAD_DEVICE_TYPE;
2775 }
2776 else
2777 {
2778 RtlEnterCriticalSection( &dir_section );
2779 if ((old_cwd = open( ".", O_RDONLY )) != -1 && fchdir( root_fd ) != -1)
2780 {
2781 status = lookup_unix_name( name, name_len, &unix_name, unix_len, 1,
2782 disposition, check_case );
2783 if (fchdir( old_cwd ) == -1) chdir( "/" );
2784 }
2785 else status = FILE_GetNtStatus();
2786 RtlLeaveCriticalSection( &dir_section );
2787 if (old_cwd != -1) close( old_cwd );
2788 if (needs_close) close( root_fd );
2789 }
2790 }
2791 else if (status == STATUS_OBJECT_TYPE_MISMATCH) status = STATUS_BAD_DEVICE_TYPE;
2792
2793 if (status == STATUS_SUCCESS || status == STATUS_NO_SUCH_FILE)
2794 {
2795 TRACE( "%s -> %s\n", debugstr_us(attr->ObjectName), debugstr_a(unix_name) );
2796 unix_name_ret->Buffer = unix_name;
2797 unix_name_ret->Length = strlen(unix_name);
2798 unix_name_ret->MaximumLength = unix_len;
2799 }
2800 else
2801 {
2802 TRACE( "%s not found in %s\n", debugstr_w(name), unix_name );
2803 RtlFreeHeap( GetProcessHeap(), 0, unix_name );
2804 }
2805 return status;
2806 }
2807
2808
2809 /******************************************************************************
2810 * wine_nt_to_unix_file_name (NTDLL.@) Not a Windows API
2811 *
2812 * Convert a file name from NT namespace to Unix namespace.
2813 *
2814 * If disposition is not FILE_OPEN or FILE_OVERWRITE, the last path
2815 * element doesn't have to exist; in that case STATUS_NO_SUCH_FILE is
2816 * returned, but the unix name is still filled in properly.
2817 */
2818 NTSTATUS CDECL wine_nt_to_unix_file_name( const UNICODE_STRING *nameW, ANSI_STRING *unix_name_ret,
2819 UINT disposition, BOOLEAN check_case )
2820 {
2821 static const WCHAR unixW[] = {'u','n','i','x'};
2822 static const WCHAR invalid_charsW[] = { INVALID_NT_CHARS, 0 };
2823
2824 NTSTATUS status = STATUS_SUCCESS;
2825 const char *config_dir = wine_get_config_dir();
2826 const WCHAR *name, *p;
2827 struct stat st;
2828 char *unix_name;
2829 int pos, ret, name_len, unix_len, prefix_len, used_default;
2830 WCHAR prefix[MAX_DIR_ENTRY_LEN];
2831 BOOLEAN is_unix = FALSE;
2832
2833 name = nameW->Buffer;
2834 name_len = nameW->Length / sizeof(WCHAR);
2835
2836 if (!name_len || !IS_SEPARATOR(name[0])) return STATUS_OBJECT_PATH_SYNTAX_BAD;
2837
2838 if (!(pos = get_dos_prefix_len( nameW )))
2839 return STATUS_BAD_DEVICE_TYPE; /* no DOS prefix, assume NT native name */
2840
2841 name += pos;
2842 name_len -= pos;
2843
2844 if (!name_len) return STATUS_OBJECT_NAME_INVALID;
2845
2846 /* check for sub-directory */
2847 for (pos = 0; pos < name_len; pos++)
2848 {
2849 if (IS_SEPARATOR(name[pos])) break;
2850 if (name[pos] < 32 || strchrW( invalid_charsW, name[pos] ))
2851 return STATUS_OBJECT_NAME_INVALID;
2852 }
2853 if (pos > MAX_DIR_ENTRY_LEN)
2854 return STATUS_OBJECT_NAME_INVALID;
2855
2856 if (pos == name_len) /* no subdir, plain DOS device */
2857 return get_dos_device( name, name_len, unix_name_ret );
2858
2859 for (prefix_len = 0; prefix_len < pos; prefix_len++)
2860 prefix[prefix_len] = tolowerW(name[prefix_len]);
2861
2862 name += prefix_len;
2863 name_len -= prefix_len;
2864
2865 /* check for invalid characters (all chars except 0 are valid for unix) */
2866 is_unix = (prefix_len == 4 && !memcmp( prefix, unixW, sizeof(unixW) ));
2867 if (is_unix)
2868 {
2869 for (p = name; p < name + name_len; p++)
2870 if (!*p) return STATUS_OBJECT_NAME_INVALID;
2871 check_case = TRUE;
2872 }
2873 else
2874 {
2875 for (p = name; p < name + name_len; p++)
2876 if (*p < 32 || strchrW( invalid_charsW, *p )) return STATUS_OBJECT_NAME_INVALID;
2877 }
2878
2879 unix_len = ntdll_wcstoumbs( 0, prefix, prefix_len, NULL, 0, NULL, NULL );
2880 unix_len += ntdll_wcstoumbs( 0, name, name_len, NULL, 0, NULL, NULL );
2881 unix_len += MAX_DIR_ENTRY_LEN + 3;
2882 unix_len += strlen(config_dir) + sizeof("/dosdevices/");
2883 if (!(unix_name = RtlAllocateHeap( GetProcessHeap(), 0, unix_len )))
2884 return STATUS_NO_MEMORY;
2885 strcpy( unix_name, config_dir );
2886 strcat( unix_name, "/dosdevices/" );
2887 pos = strlen(unix_name);
2888
2889 ret = ntdll_wcstoumbs( 0, prefix, prefix_len, unix_name + pos, unix_len - pos - 1,
2890 NULL, &used_default );
2891 if (!ret || used_default)
2892 {
2893 RtlFreeHeap( GetProcessHeap(), 0, unix_name );
2894 return STATUS_OBJECT_NAME_INVALID;
2895 }
2896 pos += ret;
2897
2898 /* check if prefix exists (except for DOS drives to avoid extra stat calls) */
2899
2900 if (prefix_len != 2 || prefix[1] != ':')
2901 {
2902 unix_name[pos] = 0;
2903 if (lstat( unix_name, &st ) == -1 && errno == ENOENT)
2904 {
2905 if (!is_unix)
2906 {
2907 RtlFreeHeap( GetProcessHeap(), 0, unix_name );
2908 return STATUS_BAD_DEVICE_TYPE;
2909 }
2910 pos = 0; /* fall back to unix root */
2911 }
2912 }
2913
2914 status = lookup_unix_name( name, name_len, &unix_name, unix_len, pos, disposition, check_case );
2915 if (status == STATUS_SUCCESS || status == STATUS_NO_SUCH_FILE)
2916 {
2917 TRACE( "%s -> %s\n", debugstr_us(nameW), debugstr_a(unix_name) );
2918 unix_name_ret->Buffer = unix_name;
2919 unix_name_ret->Length = strlen(unix_name);
2920 unix_name_ret->MaximumLength = unix_len;
2921 }
2922 else
2923 {
2924 TRACE( "%s not found in %s\n", debugstr_w(name), unix_name );
2925 RtlFreeHeap( GetProcessHeap(), 0, unix_name );
2926 }
2927 return status;
2928 }
2929
2930
2931 /******************************************************************
2932 * RtlWow64EnableFsRedirection (NTDLL.@)
2933 */
2934 NTSTATUS WINAPI RtlWow64EnableFsRedirection( BOOLEAN enable )
2935 {
2936 if (!is_wow64) return STATUS_NOT_IMPLEMENTED;
2937 ntdll_get_thread_data()->wow64_redir = enable;
2938 return STATUS_SUCCESS;
2939 }
2940
2941
2942 /******************************************************************
2943 * RtlWow64EnableFsRedirectionEx (NTDLL.@)
2944 */
2945 NTSTATUS WINAPI RtlWow64EnableFsRedirectionEx( ULONG disable, ULONG *old_value )
2946 {
2947 if (!is_wow64) return STATUS_NOT_IMPLEMENTED;
2948
2949 __TRY
2950 {
2951 *old_value = !ntdll_get_thread_data()->wow64_redir;
2952 }
2953 __EXCEPT_PAGE_FAULT
2954 {
2955 return STATUS_ACCESS_VIOLATION;
2956 }
2957 __ENDTRY
2958
2959 ntdll_get_thread_data()->wow64_redir = !disable;
2960 return STATUS_SUCCESS;
2961 }
2962
2963
2964 /******************************************************************
2965 * RtlDoesFileExists_U (NTDLL.@)
2966 */
2967 BOOLEAN WINAPI RtlDoesFileExists_U(LPCWSTR file_name)
2968 {
2969 UNICODE_STRING nt_name;
2970 FILE_BASIC_INFORMATION basic_info;
2971 OBJECT_ATTRIBUTES attr;
2972 BOOLEAN ret;
2973
2974 if (!RtlDosPathNameToNtPathName_U( file_name, &nt_name, NULL, NULL )) return FALSE;
2975
2976 attr.Length = sizeof(attr);
2977 attr.RootDirectory = 0;
2978 attr.ObjectName = &nt_name;
2979 attr.Attributes = OBJ_CASE_INSENSITIVE;
2980 attr.SecurityDescriptor = NULL;
2981 attr.SecurityQualityOfService = NULL;
2982
2983 ret = NtQueryAttributesFile(&attr, &basic_info) == STATUS_SUCCESS;
2984
2985 RtlFreeUnicodeString( &nt_name );
2986 return ret;
2987 }
2988
2989
2990 /***********************************************************************
2991 * DIR_unmount_device
2992 *
2993 * Unmount the specified device.
2994 */
2995 NTSTATUS DIR_unmount_device( HANDLE handle )
2996 {
2997 NTSTATUS status;
2998 int unix_fd, needs_close;
2999
3000 if (!(status = server_get_unix_fd( handle, 0, &unix_fd, &needs_close, NULL, NULL )))
3001 {
3002 struct stat st;
3003 char *mount_point = NULL;
3004
3005 if (fstat( unix_fd, &st ) == -1 || !is_valid_mounted_device( &st ))
3006 status = STATUS_INVALID_PARAMETER;
3007 else
3008 {
3009 if ((mount_point = get_device_mount_point( st.st_rdev )))
3010 {
3011 #ifdef __APPLE__
3012 static const char umount[] = "diskutil unmount >/dev/null 2>&1 ";
3013 #else
3014 static const char umount[] = "umount >/dev/null 2>&1 ";
3015 #endif
3016 char *cmd = RtlAllocateHeap( GetProcessHeap(), 0, strlen(mount_point)+sizeof(umount));
3017 if (cmd)
3018 {
3019 strcpy( cmd, umount );
3020 strcat( cmd, mount_point );
3021 system( cmd );
3022 RtlFreeHeap( GetProcessHeap(), 0, cmd );
3023 #ifdef linux
3024 /* umount will fail to release the loop device since we still have
3025 a handle to it, so we release it here */
3026 if (major(st.st_rdev) == LOOP_MAJOR) ioctl( unix_fd, 0x4c01 /*LOOP_CLR_FD*/, 0 );
3027 #endif
3028 }
3029 RtlFreeHeap( GetProcessHeap(), 0, mount_point );
3030 }
3031 }
3032 if (needs_close) close( unix_fd );
3033 }
3034 return status;
3035 }
3036
3037
3038 /******************************************************************************
3039 * DIR_get_unix_cwd
3040 *
3041 * Retrieve the Unix name of the current directory; helper for wine_unix_to_nt_file_name.
3042 * Returned value must be freed by caller.
3043 */
3044 NTSTATUS DIR_get_unix_cwd( char **cwd )
3045 {
3046 int old_cwd, unix_fd, needs_close;
3047 CURDIR *curdir;
3048 HANDLE handle;
3049 NTSTATUS status;
3050
3051 RtlAcquirePebLock();
3052
3053 if (NtCurrentTeb()->Tib.SubSystemTib) /* FIXME: hack */
3054 curdir = &((WIN16_SUBSYSTEM_TIB *)NtCurrentTeb()->Tib.SubSystemTib)->curdir;
3055 else
3056 curdir = &NtCurrentTeb()->Peb->ProcessParameters->CurrentDirectory;
3057
3058 if (!(handle = curdir->Handle))
3059 {
3060 UNICODE_STRING dirW;
3061 OBJECT_ATTRIBUTES attr;
3062 IO_STATUS_BLOCK io;
3063
3064 if (!RtlDosPathNameToNtPathName_U( curdir->DosPath.Buffer, &dirW, NULL, NULL ))
3065 {
3066 status = STATUS_OBJECT_NAME_INVALID;
3067 goto done;
3068 }
3069 attr.Length = sizeof(attr);
3070 attr.RootDirectory = 0;
3071 attr.Attributes = OBJ_CASE_INSENSITIVE;
3072 attr.ObjectName = &dirW;
3073 attr.SecurityDescriptor = NULL;
3074 attr.SecurityQualityOfService = NULL;
3075
3076 status = NtOpenFile( &handle, SYNCHRONIZE, &attr, &io, 0,
3077 FILE_DIRECTORY_FILE | FILE_SYNCHRONOUS_IO_NONALERT );
3078 RtlFreeUnicodeString( &dirW );
3079 if (status != STATUS_SUCCESS) goto done;
3080 }
3081
3082 if ((status = server_get_unix_fd( handle, 0, &unix_fd, &needs_close, NULL, NULL )) == STATUS_SUCCESS)
3083 {
3084 RtlEnterCriticalSection( &dir_section );
3085
3086 if ((old_cwd = open(".", O_RDONLY)) != -1 && fchdir( unix_fd ) != -1)
3087 {
3088 unsigned int size = 512;
3089
3090 for (;;)
3091 {
3092 if (!(*cwd = RtlAllocateHeap( GetProcessHeap(), 0, size )))
3093 {
3094 status = STATUS_NO_MEMORY;
3095 break;
3096 }
3097 if (getcwd( *cwd, size )) break;
3098 RtlFreeHeap( GetProcessHeap(), 0, *cwd );
3099 if (errno != ERANGE)
3100 {
3101 status = STATUS_OBJECT_PATH_INVALID;
3102 break;
3103 }
3104 size *= 2;
3105 }
3106 if (fchdir( old_cwd ) == -1) chdir( "/" );
3107 }
3108 else status = FILE_GetNtStatus();
3109
3110 RtlLeaveCriticalSection( &dir_section );
3111 if (old_cwd != -1) close( old_cwd );
3112 if (needs_close) close( unix_fd );
3113 }
3114 if (!curdir->Handle) NtClose( handle );
3115
3116 done:
3117 RtlReleasePebLock();
3118 return status;
3119 }
Windows API implementation