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Add the ContextMenuHandlers key for shortcuts so the new context menu
[wine/multimedia.git] / dlls / ntdll / directory.c
blobff9bca276409ccbc8519529196b0a57c4f06c1dc
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 */
22
23 #include "config.h"
24 #include "wine/port.h"
25
26 #include <sys/types.h>
27 #include <dirent.h>
28 #include <errno.h>
29 #include <fcntl.h>
30 #include <stdarg.h>
31 #include <string.h>
32 #include <stdlib.h>
33 #include <stdio.h>
34 #ifdef HAVE_MNTENT_H
35 #include <mntent.h>
36 #endif
37 #ifdef HAVE_SYS_STAT_H
38 # include <sys/stat.h>
39 #endif
40 #ifdef HAVE_SYS_IOCTL_H
41 #include <sys/ioctl.h>
42 #endif
43 #ifdef HAVE_LINUX_IOCTL_H
44 #include <linux/ioctl.h>
45 #endif
46 #ifdef HAVE_LINUX_MAJOR_H
47 # include <linux/major.h>
48 #endif
49 #ifdef HAVE_SYS_PARAM_H
50 #include <sys/param.h>
51 #endif
52 #ifdef HAVE_SYS_MOUNT_H
53 #include <sys/mount.h>
54 #endif
55 #include <time.h>
56 #ifdef HAVE_UNISTD_H
57 # include <unistd.h>
58 #endif
59
60 #define NONAMELESSUNION
61 #define NONAMELESSSTRUCT
62 #include "windef.h"
63 #include "winnt.h"
64 #include "ntstatus.h"
65 #include "thread.h"
66 #include "winternl.h"
67 #include "ntdll_misc.h"
68 #include "wine/unicode.h"
69 #include "wine/server.h"
70 #include "wine/library.h"
71 #include "wine/debug.h"
72
73 WINE_DEFAULT_DEBUG_CHANNEL(file);
74
75 /* just in case... */
76 #undef VFAT_IOCTL_READDIR_BOTH
77 #undef USE_GETDENTS
78
79 #ifdef linux
80
81 /* We want the real kernel dirent structure, not the libc one */
82 typedef struct
83 {
84 long d_ino;
85 long d_off;
86 unsigned short d_reclen;
87 char d_name[256];
88 } KERNEL_DIRENT;
89
90 /* Define the VFAT ioctl to get both short and long file names */
91 #define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, KERNEL_DIRENT [2] )
92
93 #ifndef O_DIRECTORY
94 # define O_DIRECTORY 0200000 /* must be directory */
95 #endif
96
97 #ifdef __i386__
98
99 typedef struct
100 {
101 ULONG64 d_ino;
102 LONG64 d_off;
103 unsigned short d_reclen;
104 unsigned char d_type;
105 char d_name[256];
106 } KERNEL_DIRENT64;
107
108 static inline int getdents64( int fd, KERNEL_DIRENT64 *de, unsigned int size )
109 {
110 int ret;
111 __asm__( "pushl %%ebx; movl %2,%%ebx; int $0x80; popl %%ebx"
112 : "=a" (ret)
113 : "0" (220 /*NR_getdents64*/), "r" (fd), "c" (de), "d" (size)
114 : "memory" );
115 if (ret < 0)
116 {
117 errno = -ret;
118 ret = -1;
119 }
120 return ret;
121 }
122 #define USE_GETDENTS
123
124 #endif /* i386 */
125
126 #endif /* linux */
127
128 #define IS_OPTION_TRUE(ch) ((ch) == 'y' || (ch) == 'Y' || (ch) == 't' || (ch) == 'T' || (ch) == '1')
129 #define IS_SEPARATOR(ch) ((ch) == '\\' || (ch) == '/')
130
131 #define INVALID_NT_CHARS '*','?','<','>','|','"'
132 #define INVALID_DOS_CHARS INVALID_NT_CHARS,'+','=',',',';','[',']',' ','\345'
133
134 #define MAX_DIR_ENTRY_LEN 255 /* max length of a directory entry in chars */
135
136 static int show_dot_files = -1;
137
138 /* at some point we may want to allow Winelib apps to set this */
139 static const int is_case_sensitive = FALSE;
140
141 static RTL_CRITICAL_SECTION dir_section;
142 static RTL_CRITICAL_SECTION_DEBUG critsect_debug =
143 {
144 0, 0, &dir_section,
145 { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
146 0, 0, { (DWORD_PTR)(__FILE__ ": dir_section") }
147 };
148 static RTL_CRITICAL_SECTION dir_section = { &critsect_debug, -1, 0, 0, 0, 0 };
149
150
151 /* check if a given Unicode char is OK in a DOS short name */
152 static inline BOOL is_invalid_dos_char( WCHAR ch )
153 {
154 static const WCHAR invalid_chars[] = { INVALID_DOS_CHARS,'~','.',0 };
155 if (ch > 0x7f) return TRUE;
156 return strchrW( invalid_chars, ch ) != NULL;
157 }
158
159 /***********************************************************************
160 * get_default_com_device
161 *
162 * Return the default device to use for serial ports.
163 */
164 static char *get_default_com_device( int num )
165 {
166 char *ret = NULL;
167
168 if (!num || num > 9) return ret;
169 #ifdef linux
170 ret = RtlAllocateHeap( GetProcessHeap(), 0, sizeof("/dev/ttyS0") );
171 if (ret)
172 {
173 strcpy( ret, "/dev/ttyS0" );
174 ret[strlen(ret) - 1] = '0' + num - 1;
175 }
176 #else
177 FIXME( "no known default for device com%d\n", num );
178 #endif
179 return ret;
180 }
181
182
183 /***********************************************************************
184 * get_default_lpt_device
185 *
186 * Return the default device to use for parallel ports.
187 */
188 static char *get_default_lpt_device( int num )
189 {
190 char *ret = NULL;
191
192 if (!num || num > 9) return ret;
193 #ifdef linux
194 ret = RtlAllocateHeap( GetProcessHeap(), 0, sizeof("/dev/lp0") );
195 if (ret)
196 {
197 strcpy( ret, "/dev/lp0" );
198 ret[strlen(ret) - 1] = '0' + num - 1;
199 }
200 #else
201 FIXME( "no known default for device lpt%d\n", num );
202 #endif
203 return ret;
204 }
205
206
207 /***********************************************************************
208 * parse_mount_entries
209 *
210 * Parse mount entries looking for a given device. Helper for get_default_drive_device.
211 */
212
213 #ifdef sun
214 #include <sys/vfstab.h>
215 static char *parse_vfstab_entries( FILE *f, dev_t dev, ino_t ino)
216 {
217
218 struct vfstab vfs_entry;
219 struct vfstab *entry=&vfs_entry;
220 struct stat st;
221 char *device;
222
223 while (! getvfsent( f, entry ))
224 {
225 /* don't even bother stat'ing network mounts, there's no meaningful device anyway */
226 if (!strcmp( entry->vfs_fstype, "nfs" ) ||
227 !strcmp( entry->vfs_fstype, "smbfs" ) ||
228 !strcmp( entry->vfs_fstype, "ncpfs" )) continue;
229
230 if (stat( entry->vfs_mountp, &st ) == -1) continue;
231 if (st.st_dev != dev || st.st_ino != ino) continue;
232 if (!strcmp( entry->vfs_fstype, "fd" ))
233 {
234 if ((device = strstr( entry->vfs_mntopts, "dev=" )))
235 {
236 char *p = strchr( device + 4, ',' );
237 if (p) *p = 0;
238 return device + 4;
239 }
240 }
241 else
242 return entry->vfs_special;
243 }
244 return NULL;
245 }
246 #endif
247
248 #ifdef linux
249 static char *parse_mount_entries( FILE *f, dev_t dev, ino_t ino )
250 {
251 struct mntent *entry;
252 struct stat st;
253 char *device;
254
255 while ((entry = getmntent( f )))
256 {
257 /* don't even bother stat'ing network mounts, there's no meaningful device anyway */
258 if (!strcmp( entry->mnt_type, "nfs" ) ||
259 !strcmp( entry->mnt_type, "smbfs" ) ||
260 !strcmp( entry->mnt_type, "ncpfs" )) continue;
261
262 if (stat( entry->mnt_dir, &st ) == -1) continue;
263 if (st.st_dev != dev || st.st_ino != ino) continue;
264 if (!strcmp( entry->mnt_type, "supermount" ))
265 {
266 if ((device = strstr( entry->mnt_opts, "dev=" )))
267 {
268 char *p = strchr( device + 4, ',' );
269 if (p) *p = 0;
270 return device + 4;
271 }
272 }
273 else if (!stat( entry->mnt_fsname, &st ) && S_ISREG(st.st_mode))
274 {
275 /* if device is a regular file check for a loop mount */
276 if ((device = strstr( entry->mnt_opts, "loop=" )))
277 {
278 char *p = strchr( device + 5, ',' );
279 if (p) *p = 0;
280 return device + 5;
281 }
282 }
283 else
284 return entry->mnt_fsname;
285 }
286 return NULL;
287 }
288 #endif
289
290 #ifdef __FreeBSD__
291 #include <fstab.h>
292 static char *parse_mount_entries( FILE *f, dev_t dev, ino_t ino )
293 {
294 struct fstab *entry;
295 struct stat st;
296
297 while ((entry = getfsent()))
298 {
299 /* don't even bother stat'ing network mounts, there's no meaningful device anyway */
300 if (!strcmp( entry->fs_vfstype, "nfs" ) ||
301 !strcmp( entry->fs_vfstype, "smbfs" ) ||
302 !strcmp( entry->fs_vfstype, "ncpfs" )) continue;
303
304 if (stat( entry->fs_file, &st ) == -1) continue;
305 if (st.st_dev != dev || st.st_ino != ino) continue;
306 return entry->fs_spec;
307 }
308 return NULL;
309 }
310 #endif
311
312 #ifdef sun
313 #include <sys/mnttab.h>
314 static char *parse_mount_entries( FILE *f, dev_t dev, ino_t ino )
315 {
316
317 volatile struct mnttab mntentry;
318 struct mnttab *entry=&mntentry;
319 struct stat st;
320 char *device;
321
322
323 while (( ! getmntent( f , entry) ))
324 {
325 /* don't even bother stat'ing network mounts, there's no meaningful device anyway */
326 if (!strcmp( entry->mnt_fstype, "nfs" ) ||
327 !strcmp( entry->mnt_fstype, "smbfs" ) ||
328 !strcmp( entry->mnt_fstype, "ncpfs" )) continue;
329
330 if (stat( entry->mnt_mountp, &st ) == -1) continue;
331 if (st.st_dev != dev || st.st_ino != ino) continue;
332 if (!strcmp( entry->mnt_fstype, "fd" ))
333 {
334 if ((device = strstr( entry->mnt_mntopts, "dev=" )))
335 {
336 char *p = strchr( device + 4, ',' );
337 if (p) *p = 0;
338 return device + 4;
339 }
340 }
341 else
342 return entry->mnt_special;
343 }
344 return NULL;
345 }
346 #endif
347
348 /***********************************************************************
349 * get_default_drive_device
350 *
351 * Return the default device to use for a given drive mount point.
352 */
353 static char *get_default_drive_device( const char *root )
354 {
355 char *ret = NULL;
356
357 #ifdef linux
358 FILE *f;
359 char *device = NULL;
360 int fd, res = -1;
361 struct stat st;
362
363 /* try to open it first to force it to get mounted */
364 if ((fd = open( root, O_RDONLY | O_DIRECTORY )) != -1)
365 {
366 res = fstat( fd, &st );
367 close( fd );
368 }
369 /* now try normal stat just in case */
370 if (res == -1) res = stat( root, &st );
371 if (res == -1) return NULL;
372
373 RtlEnterCriticalSection( &dir_section );
374
375 if ((f = fopen( "/etc/mtab", "r" )))
376 {
377 device = parse_mount_entries( f, st.st_dev, st.st_ino );
378 endmntent( f );
379 }
380 /* look through fstab too in case it's not mounted (for instance if it's an audio CD) */
381 if (!device && (f = fopen( "/etc/fstab", "r" )))
382 {
383 device = parse_mount_entries( f, st.st_dev, st.st_ino );
384 endmntent( f );
385 }
386 if (device)
387 {
388 ret = RtlAllocateHeap( GetProcessHeap(), 0, strlen(device) + 1 );
389 if (ret) strcpy( ret, device );
390 }
391 RtlLeaveCriticalSection( &dir_section );
392
393 #elif defined( __FreeBSD__ )
394 char *device = NULL;
395 int fd, res = -1;
396 struct stat st;
397
398 /* try to open it first to force it to get mounted */
399 if ((fd = open( root, O_RDONLY )) != -1)
400 {
401 res = fstat( fd, &st );
402 close( fd );
403 }
404 /* now try normal stat just in case */
405 if (res == -1) res = stat( root, &st );
406 if (res == -1) return NULL;
407
408 RtlEnterCriticalSection( &dir_section );
409
410 /* The FreeBSD parse_mount_entries doesn't require a file argument, so just
411 * pass NULL. Leave the argument in for symmetry.
412 */
413 device = parse_mount_entries( NULL, st.st_dev, st.st_ino );
414 if (device)
415 {
416 ret = RtlAllocateHeap( GetProcessHeap(), 0, strlen(device) + 1 );
417 if (ret) strcpy( ret, device );
418 }
419 RtlLeaveCriticalSection( &dir_section );
420
421 #elif defined( sun )
422 FILE *f;
423 char *device = NULL;
424 int fd, res = -1;
425 struct stat st;
426
427 /* try to open it first to force it to get mounted */
428 if ((fd = open( root, O_RDONLY )) != -1)
429 {
430 res = fstat( fd, &st );
431 close( fd );
432 }
433 /* now try normal stat just in case */
434 if (res == -1) res = stat( root, &st );
435 if (res == -1) return NULL;
436
437 RtlEnterCriticalSection( &dir_section );
438
439 if ((f = fopen( "/etc/mnttab", "r" )))
440 {
441 device = parse_mount_entries( f, st.st_dev, st.st_ino);
442 fclose( f );
443 }
444 /* look through fstab too in case it's not mounted (for instance if it's an audio CD) */
445 if (!device && (f = fopen( "/etc/vfstab", "r" )))
446 {
447 device = parse_vfstab_entries( f, st.st_dev, st.st_ino );
448 fclose( f );
449 }
450 if (device)
451 {
452 ret = RtlAllocateHeap( GetProcessHeap(), 0, strlen(device) + 1 );
453 if (ret) strcpy( ret, device );
454 }
455 RtlLeaveCriticalSection( &dir_section );
456
457 #elif defined(__APPLE__)
458 struct statfs *mntStat;
459 struct stat st;
460 int i;
461 int mntSize;
462 dev_t dev;
463 ino_t ino;
464 static const char path_bsd_device[] = "/dev/disk";
465 int res;
466
467 res = stat( root, &st );
468 if (res == -1) return NULL;
469
470 dev = st.st_dev;
471 ino = st.st_ino;
472
473 RtlEnterCriticalSection( &dir_section );
474
475 mntSize = getmntinfo(&mntStat, MNT_NOWAIT);
476
477 for (i = 0; i < mntSize && !ret; i++)
478 {
479 if (stat(mntStat[i].f_mntonname, &st ) == -1) continue;
480 if (st.st_dev != dev || st.st_ino != ino) continue;
481
482 /* FIXME add support for mounted network drive */
483 if ( strncmp(mntStat[i].f_mntfromname, path_bsd_device, strlen(path_bsd_device)) == 0)
484 {
485 /* set return value to the corresponding raw BSD node */
486 ret = RtlAllocateHeap( GetProcessHeap(), 0, strlen(mntStat[i].f_mntfromname) + 2 /* 2 : r and \0 */ );
487 if (ret)
488 {
489 strcpy(ret, "/dev/r");
490 strcat(ret, mntStat[i].f_mntfromname+sizeof("/dev/")-1);
491 }
492 }
493 }
494 RtlLeaveCriticalSection( &dir_section );
495 #else
496 static int warned;
497 if (!warned++) FIXME( "auto detection of DOS devices not supported on this platform\n" );
498 #endif
499 return ret;
500 }
501
502
503 /***********************************************************************
504 * get_device_mount_point
505 *
506 * Return the current mount point for a device.
507 */
508 static char *get_device_mount_point( dev_t dev )
509 {
510 char *ret = NULL;
511
512 #ifdef linux
513 FILE *f;
514
515 RtlEnterCriticalSection( &dir_section );
516
517 if ((f = fopen( "/etc/mtab", "r" )))
518 {
519 struct mntent *entry;
520 struct stat st;
521 char *p, *device;
522
523 while ((entry = getmntent( f )))
524 {
525 /* don't even bother stat'ing network mounts, there's no meaningful device anyway */
526 if (!strcmp( entry->mnt_type, "nfs" ) ||
527 !strcmp( entry->mnt_type, "smbfs" ) ||
528 !strcmp( entry->mnt_type, "ncpfs" )) continue;
529
530 if (!strcmp( entry->mnt_type, "supermount" ))
531 {
532 if ((device = strstr( entry->mnt_opts, "dev=" )))
533 {
534 device += 4;
535 if ((p = strchr( device, ',' ))) *p = 0;
536 }
537 }
538 else if (!stat( entry->mnt_fsname, &st ) && S_ISREG(st.st_mode))
539 {
540 /* if device is a regular file check for a loop mount */
541 if ((device = strstr( entry->mnt_opts, "loop=" )))
542 {
543 device += 5;
544 if ((p = strchr( device, ',' ))) *p = 0;
545 }
546 }
547 else device = entry->mnt_fsname;
548
549 if (device && !stat( device, &st ) && S_ISBLK(st.st_mode) && st.st_rdev == dev)
550 {
551 ret = RtlAllocateHeap( GetProcessHeap(), 0, strlen(entry->mnt_dir) + 1 );
552 if (ret) strcpy( ret, entry->mnt_dir );
553 break;
554 }
555 }
556 endmntent( f );
557 }
558 RtlLeaveCriticalSection( &dir_section );
559 #else
560 static int warned;
561 if (!warned++) FIXME( "unmounting devices not supported on this platform\n" );
562 #endif
563 return ret;
564 }
565
566
567 /***********************************************************************
568 * init_options
569 *
570 * Initialize the show_dot_files options.
571 */
572 static void init_options(void)
573 {
574 static const WCHAR WineW[] = {'S','o','f','t','w','a','r','e','\\','W','i','n','e',0};
575 static const WCHAR ShowDotFilesW[] = {'S','h','o','w','D','o','t','F','i','l','e','s',0};
576 char tmp[80];
577 HANDLE root, hkey;
578 DWORD dummy;
579 OBJECT_ATTRIBUTES attr;
580 UNICODE_STRING nameW;
581
582 show_dot_files = 0;
583
584 RtlOpenCurrentUser( KEY_ALL_ACCESS, &root );
585 attr.Length = sizeof(attr);
586 attr.RootDirectory = root;
587 attr.ObjectName = &nameW;
588 attr.Attributes = 0;
589 attr.SecurityDescriptor = NULL;
590 attr.SecurityQualityOfService = NULL;
591 RtlInitUnicodeString( &nameW, WineW );
592
593 /* @@ Wine registry key: HKCU\Software\Wine */
594 if (!NtOpenKey( &hkey, KEY_ALL_ACCESS, &attr ))
595 {
596 RtlInitUnicodeString( &nameW, ShowDotFilesW );
597 if (!NtQueryValueKey( hkey, &nameW, KeyValuePartialInformation, tmp, sizeof(tmp), &dummy ))
598 {
599 WCHAR *str = (WCHAR *)((KEY_VALUE_PARTIAL_INFORMATION *)tmp)->Data;
600 show_dot_files = IS_OPTION_TRUE( str[0] );
601 }
602 NtClose( hkey );
603 }
604 NtClose( root );
605 }
606
607
608 /***********************************************************************
609 * DIR_is_hidden_file
610 *
611 * Check if the specified file should be hidden based on its name and the show dot files option.
612 */
613 BOOL DIR_is_hidden_file( const UNICODE_STRING *name )
614 {
615 WCHAR *p, *end;
616
617 if (show_dot_files == -1) init_options();
618 if (show_dot_files) return FALSE;
619
620 end = p = name->Buffer + name->Length/sizeof(WCHAR);
621 while (p > name->Buffer && IS_SEPARATOR(p[-1])) p--;
622 while (p > name->Buffer && !IS_SEPARATOR(p[-1])) p--;
623 if (p == end || *p != '.') return FALSE;
624 /* make sure it isn't '.' or '..' */
625 if (p + 1 == end) return FALSE;
626 if (p[1] == '.' && p + 2 == end) return FALSE;
627 return TRUE;
628 }
629
630
631 /***********************************************************************
632 * hash_short_file_name
633 *
634 * Transform a Unix file name into a hashed DOS name. If the name is a valid
635 * DOS name, it is converted to upper-case; otherwise it is replaced by a
636 * hashed version that fits in 8.3 format.
637 * 'buffer' must be at least 12 characters long.
638 * Returns length of short name in bytes; short name is NOT null-terminated.
639 */
640 static ULONG hash_short_file_name( const UNICODE_STRING *name, LPWSTR buffer )
641 {
642 static const char hash_chars[32] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ012345";
643
644 LPCWSTR p, ext, end = name->Buffer + name->Length / sizeof(WCHAR);
645 LPWSTR dst;
646 unsigned short hash;
647 int i;
648
649 /* Compute the hash code of the file name */
650 /* If you know something about hash functions, feel free to */
651 /* insert a better algorithm here... */
652 if (!is_case_sensitive)
653 {
654 for (p = name->Buffer, hash = 0xbeef; p < end - 1; p++)
655 hash = (hash<<3) ^ (hash>>5) ^ tolowerW(*p) ^ (tolowerW(p[1]) << 8);
656 hash = (hash<<3) ^ (hash>>5) ^ tolowerW(*p); /* Last character */
657 }
658 else
659 {
660 for (p = name->Buffer, hash = 0xbeef; p < end - 1; p++)
661 hash = (hash << 3) ^ (hash >> 5) ^ *p ^ (p[1] << 8);
662 hash = (hash << 3) ^ (hash >> 5) ^ *p; /* Last character */
663 }
664
665 /* Find last dot for start of the extension */
666 for (p = name->Buffer + 1, ext = NULL; p < end - 1; p++) if (*p == '.') ext = p;
667
668 /* Copy first 4 chars, replacing invalid chars with '_' */
669 for (i = 4, p = name->Buffer, dst = buffer; i > 0; i--, p++)
670 {
671 if (p == end || p == ext) break;
672 *dst++ = is_invalid_dos_char(*p) ? '_' : toupperW(*p);
673 }
674 /* Pad to 5 chars with '~' */
675 while (i-- >= 0) *dst++ = '~';
676
677 /* Insert hash code converted to 3 ASCII chars */
678 *dst++ = hash_chars[(hash >> 10) & 0x1f];
679 *dst++ = hash_chars[(hash >> 5) & 0x1f];
680 *dst++ = hash_chars[hash & 0x1f];
681
682 /* Copy the first 3 chars of the extension (if any) */
683 if (ext)
684 {
685 *dst++ = '.';
686 for (i = 3, ext++; (i > 0) && ext < end; i--, ext++)
687 *dst++ = is_invalid_dos_char(*ext) ? '_' : toupperW(*ext);
688 }
689 return dst - buffer;
690 }
691
692
693 /***********************************************************************
694 * match_filename
695 *
696 * Check a long file name against a mask.
697 *
698 * Tests (done in W95 DOS shell - case insensitive):
699 * *.txt test1.test.txt *
700 * *st1* test1.txt *
701 * *.t??????.t* test1.ta.tornado.txt *
702 * *tornado* test1.ta.tornado.txt *
703 * t*t test1.ta.tornado.txt *
704 * ?est* test1.txt *
705 * ?est??? test1.txt -
706 * *test1.txt* test1.txt *
707 * h?l?o*t.dat hellothisisatest.dat *
708 */
709 static BOOLEAN match_filename( const UNICODE_STRING *name_str, const UNICODE_STRING *mask_str )
710 {
711 int mismatch;
712 const WCHAR *name = name_str->Buffer;
713 const WCHAR *mask = mask_str->Buffer;
714 const WCHAR *name_end = name + name_str->Length / sizeof(WCHAR);
715 const WCHAR *mask_end = mask + mask_str->Length / sizeof(WCHAR);
716 const WCHAR *lastjoker = NULL;
717 const WCHAR *next_to_retry = NULL;
718
719 TRACE("(%s, %s)\n", debugstr_us(name_str), debugstr_us(mask_str));
720
721 while (name < name_end && mask < mask_end)
722 {
723 switch(*mask)
724 {
725 case '*':
726 mask++;
727 while (mask < mask_end && *mask == '*') mask++; /* Skip consecutive '*' */
728 if (mask == mask_end) return TRUE; /* end of mask is all '*', so match */
729 lastjoker = mask;
730
731 /* skip to the next match after the joker(s) */
732 if (is_case_sensitive)
733 while (name < name_end && (*name != *mask)) name++;
734 else
735 while (name < name_end && (toupperW(*name) != toupperW(*mask))) name++;
736 next_to_retry = name;
737 break;
738 case '?':
739 mask++;
740 name++;
741 break;
742 default:
743 if (is_case_sensitive) mismatch = (*mask != *name);
744 else mismatch = (toupperW(*mask) != toupperW(*name));
745
746 if (!mismatch)
747 {
748 mask++;
749 name++;
750 if (mask == mask_end)
751 {
752 if (name == name_end) return TRUE;
753 if (lastjoker) mask = lastjoker;
754 }
755 }
756 else /* mismatch ! */
757 {
758 if (lastjoker) /* we had an '*', so we can try unlimitedly */
759 {
760 mask = lastjoker;
761
762 /* this scan sequence was a mismatch, so restart
763 * 1 char after the first char we checked last time */
764 next_to_retry++;
765 name = next_to_retry;
766 }
767 else return FALSE; /* bad luck */
768 }
769 break;
770 }
771 }
772 while (mask < mask_end && ((*mask == '.') || (*mask == '*')))
773 mask++; /* Ignore trailing '.' or '*' in mask */
774 return (name == name_end && mask == mask_end);
775 }
776
777
778 /***********************************************************************
779 * append_entry
780 *
781 * helper for NtQueryDirectoryFile
782 */
783 static FILE_BOTH_DIR_INFORMATION *append_entry( void *info_ptr, ULONG_PTR *pos, ULONG max_length,
784 const char *long_name, const char *short_name,
785 const UNICODE_STRING *mask )
786 {
787 FILE_BOTH_DIR_INFORMATION *info;
788 int i, long_len, short_len, total_len;
789 struct stat st;
790 WCHAR long_nameW[MAX_DIR_ENTRY_LEN];
791 WCHAR short_nameW[12];
792 UNICODE_STRING str;
793
794 long_len = ntdll_umbstowcs( 0, long_name, strlen(long_name), long_nameW, MAX_DIR_ENTRY_LEN );
795 if (long_len == -1) return NULL;
796
797 str.Buffer = long_nameW;
798 str.Length = long_len * sizeof(WCHAR);
799 str.MaximumLength = sizeof(long_nameW);
800
801 if (short_name)
802 {
803 short_len = ntdll_umbstowcs( 0, short_name, strlen(short_name),
804 short_nameW, sizeof(short_nameW) / sizeof(WCHAR) );
805 if (short_len == -1) short_len = sizeof(short_nameW) / sizeof(WCHAR);
806 }
807 else /* generate a short name if necessary */
808 {
809 BOOLEAN spaces;
810
811 short_len = 0;
812 if (!RtlIsNameLegalDOS8Dot3( &str, NULL, &spaces ) || spaces)
813 short_len = hash_short_file_name( &str, short_nameW );
814 }
815
816 TRACE( "long %s short %s mask %s\n",
817 debugstr_us(&str), debugstr_wn(short_nameW, short_len), debugstr_us(mask) );
818
819 if (mask && !match_filename( &str, mask ))
820 {
821 if (!short_len) return NULL; /* no short name to match */
822 str.Buffer = short_nameW;
823 str.Length = short_len * sizeof(WCHAR);
824 str.MaximumLength = sizeof(short_nameW);
825 if (!match_filename( &str, mask )) return NULL;
826 }
827
828 total_len = (sizeof(*info) - sizeof(info->FileName) + long_len*sizeof(WCHAR) + 3) & ~3;
829 info = (FILE_BOTH_DIR_INFORMATION *)((char *)info_ptr + *pos);
830
831 if (*pos + total_len > max_length) total_len = max_length - *pos;
832
833 info->FileAttributes = 0;
834 if (lstat( long_name, &st ) == -1) return NULL;
835 if (S_ISLNK( st.st_mode ))
836 {
837 if (stat( long_name, &st ) == -1) return NULL;
838 if (S_ISDIR( st.st_mode )) info->FileAttributes |= FILE_ATTRIBUTE_REPARSE_POINT;
839 }
840
841 info->NextEntryOffset = total_len;
842 info->FileIndex = 0; /* NTFS always has 0 here, so let's not bother with it */
843
844 RtlSecondsSince1970ToTime( st.st_mtime, &info->CreationTime );
845 RtlSecondsSince1970ToTime( st.st_mtime, &info->LastWriteTime );
846 RtlSecondsSince1970ToTime( st.st_atime, &info->LastAccessTime );
847 RtlSecondsSince1970ToTime( st.st_ctime, &info->ChangeTime );
848
849 if (S_ISDIR(st.st_mode))
850 {
851 info->EndOfFile.QuadPart = info->AllocationSize.QuadPart = 0;
852 info->FileAttributes |= FILE_ATTRIBUTE_DIRECTORY;
853 }
854 else
855 {
856 info->EndOfFile.QuadPart = st.st_size;
857 info->AllocationSize.QuadPart = (ULONGLONG)st.st_blocks * 512;
858 info->FileAttributes |= FILE_ATTRIBUTE_ARCHIVE;
859 }
860
861 if (!(st.st_mode & (S_IWUSR | S_IWGRP | S_IWOTH)))
862 info->FileAttributes |= FILE_ATTRIBUTE_READONLY;
863
864 if (!show_dot_files && long_name[0] == '.' && long_name[1] && (long_name[1] != '.' || long_name[2]))
865 info->FileAttributes |= FILE_ATTRIBUTE_HIDDEN;
866
867 info->EaSize = 0; /* FIXME */
868 info->ShortNameLength = short_len * sizeof(WCHAR);
869 for (i = 0; i < short_len; i++) info->ShortName[i] = toupperW(short_nameW[i]);
870 info->FileNameLength = long_len * sizeof(WCHAR);
871 memcpy( info->FileName, long_nameW,
872 min( info->FileNameLength, total_len-sizeof(*info)+sizeof(info->FileName) ));
873
874 *pos += total_len;
875 return info;
876 }
877
878
879 /***********************************************************************
880 * read_directory_vfat
881 *
882 * Read a directory using the VFAT ioctl; helper for NtQueryDirectoryFile.
883 */
884 #ifdef VFAT_IOCTL_READDIR_BOTH
885 static int read_directory_vfat( int fd, IO_STATUS_BLOCK *io, void *buffer, ULONG length,
886 BOOLEAN single_entry, const UNICODE_STRING *mask,
887 BOOLEAN restart_scan )
888
889 {
890 int res;
891 KERNEL_DIRENT de[2];
892 FILE_BOTH_DIR_INFORMATION *info, *last_info = NULL;
893 static const unsigned int max_dir_info_size = sizeof(*info) + (MAX_DIR_ENTRY_LEN-1) * sizeof(WCHAR);
894
895 io->u.Status = STATUS_SUCCESS;
896
897 if (restart_scan) lseek( fd, 0, SEEK_SET );
898
899 if (length < max_dir_info_size) /* we may have to return a partial entry here */
900 {
901 off_t old_pos = lseek( fd, 0, SEEK_CUR );
902
903 /* Set d_reclen to 65535 to work around an AFS kernel bug */
904 de[0].d_reclen = 65535;
905 res = ioctl( fd, VFAT_IOCTL_READDIR_BOTH, (long)de );
906 if (res == -1 && errno != ENOENT) return -1; /* VFAT ioctl probably not supported */
907 if (!res && de[0].d_reclen == 65535) return -1; /* AFS bug */
908
909 while (res != -1)
910 {
911 if (!de[0].d_reclen) break;
912 if (de[1].d_name[0])
913 info = append_entry( buffer, &io->Information, length,
914 de[1].d_name, de[0].d_name, mask );
915 else
916 info = append_entry( buffer, &io->Information, length,
917 de[0].d_name, NULL, mask );
918 if (info)
919 {
920 last_info = info;
921 if ((char *)info->FileName + info->FileNameLength > (char *)buffer + length)
922 {
923 io->u.Status = STATUS_BUFFER_OVERFLOW;
924 lseek( fd, old_pos, SEEK_SET ); /* restore pos to previous entry */
925 }
926 break;
927 }
928 old_pos = lseek( fd, 0, SEEK_CUR );
929 res = ioctl( fd, VFAT_IOCTL_READDIR_BOTH, (long)de );
930 }
931 }
932 else /* we'll only return full entries, no need to worry about overflow */
933 {
934 /* Set d_reclen to 65535 to work around an AFS kernel bug */
935 de[0].d_reclen = 65535;
936 res = ioctl( fd, VFAT_IOCTL_READDIR_BOTH, (long)de );
937 if (res == -1 && errno != ENOENT) return -1; /* VFAT ioctl probably not supported */
938 if (!res && de[0].d_reclen == 65535) return -1; /* AFS bug */
939
940 while (res != -1)
941 {
942 if (!de[0].d_reclen) break;
943 if (de[1].d_name[0])
944 info = append_entry( buffer, &io->Information, length,
945 de[1].d_name, de[0].d_name, mask );
946 else
947 info = append_entry( buffer, &io->Information, length,
948 de[0].d_name, NULL, mask );
949 if (info)
950 {
951 last_info = info;
952 if (single_entry) break;
953 /* check if we still have enough space for the largest possible entry */
954 if (io->Information + max_dir_info_size > length) break;
955 }
956 res = ioctl( fd, VFAT_IOCTL_READDIR_BOTH, (long)de );
957 }
958 }
959
960 if (last_info) last_info->NextEntryOffset = 0;
961 else io->u.Status = restart_scan ? STATUS_NO_SUCH_FILE : STATUS_NO_MORE_FILES;
962 return 0;
963 }
964 #endif /* VFAT_IOCTL_READDIR_BOTH */
965
966
967 /***********************************************************************
968 * read_directory_getdents
969 *
970 * Read a directory using the Linux getdents64 system call; helper for NtQueryDirectoryFile.
971 */
972 #ifdef USE_GETDENTS
973 static int read_directory_getdents( int fd, IO_STATUS_BLOCK *io, void *buffer, ULONG length,
974 BOOLEAN single_entry, const UNICODE_STRING *mask,
975 BOOLEAN restart_scan )
976 {
977 off_t old_pos = 0;
978 size_t size = length;
979 int res;
980 char local_buffer[8192];
981 KERNEL_DIRENT64 *data, *de;
982 FILE_BOTH_DIR_INFORMATION *info, *last_info = NULL;
983 static const unsigned int max_dir_info_size = sizeof(*info) + (MAX_DIR_ENTRY_LEN-1) * sizeof(WCHAR);
984
985 if (size <= sizeof(local_buffer) || !(data = RtlAllocateHeap( GetProcessHeap(), 0, size )))
986 {
987 size = sizeof(local_buffer);
988 data = (KERNEL_DIRENT64 *)local_buffer;
989 }
990
991 if (restart_scan) lseek( fd, 0, SEEK_SET );
992 else if (length < max_dir_info_size) /* we may have to return a partial entry here */
993 {
994 old_pos = lseek( fd, 0, SEEK_CUR );
995 if (old_pos == -1 && errno == ENOENT)
996 {
997 io->u.Status = STATUS_NO_MORE_FILES;
998 res = 0;
999 goto done;
1000 }
1001 }
1002
1003 io->u.Status = STATUS_SUCCESS;
1004
1005 res = getdents64( fd, data, size );
1006 if (res == -1)
1007 {
1008 if (errno != ENOSYS)
1009 {
1010 io->u.Status = FILE_GetNtStatus();
1011 res = 0;
1012 }
1013 goto done;
1014 }
1015
1016 de = data;
1017
1018 while (res > 0)
1019 {
1020 res -= de->d_reclen;
1021 info = append_entry( buffer, &io->Information, length, de->d_name, NULL, mask );
1022 if (info)
1023 {
1024 last_info = info;
1025 if ((char *)info->FileName + info->FileNameLength > (char *)buffer + length)
1026 {
1027 io->u.Status = STATUS_BUFFER_OVERFLOW;
1028 lseek( fd, old_pos, SEEK_SET ); /* restore pos to previous entry */
1029 break;
1030 }
1031 /* check if we still have enough space for the largest possible entry */
1032 if (single_entry || io->Information + max_dir_info_size > length)
1033 {
1034 if (res > 0) lseek( fd, de->d_off, SEEK_SET ); /* set pos to next entry */
1035 break;
1036 }
1037 }
1038 old_pos = de->d_off;
1039 /* move on to the next entry */
1040 if (res > 0) de = (KERNEL_DIRENT64 *)((char *)de + de->d_reclen);
1041 else
1042 {
1043 res = getdents64( fd, data, size );
1044 de = data;
1045 }
1046 }
1047
1048 if (last_info) last_info->NextEntryOffset = 0;
1049 else io->u.Status = restart_scan ? STATUS_NO_SUCH_FILE : STATUS_NO_MORE_FILES;
1050 res = 0;
1051 done:
1052 if ((char *)data != local_buffer) RtlFreeHeap( GetProcessHeap(), 0, data );
1053 return res;
1054 }
1055 #endif /* USE_GETDENTS */
1056
1057
1058 /***********************************************************************
1059 * read_directory_readdir
1060 *
1061 * Read a directory using the POSIX readdir interface; helper for NtQueryDirectoryFile.
1062 */
1063 static void read_directory_readdir( int fd, IO_STATUS_BLOCK *io, void *buffer, ULONG length,
1064 BOOLEAN single_entry, const UNICODE_STRING *mask,
1065 BOOLEAN restart_scan )
1066 {
1067 DIR *dir;
1068 off_t i, old_pos = 0;
1069 struct dirent *de;
1070 FILE_BOTH_DIR_INFORMATION *info, *last_info = NULL;
1071 static const unsigned int max_dir_info_size = sizeof(*info) + (MAX_DIR_ENTRY_LEN-1) * sizeof(WCHAR);
1072
1073 if (!(dir = opendir( "." )))
1074 {
1075 io->u.Status = FILE_GetNtStatus();
1076 return;
1077 }
1078
1079 if (!restart_scan)
1080 {
1081 old_pos = lseek( fd, 0, SEEK_CUR );
1082 /* skip the right number of entries */
1083 for (i = 0; i < old_pos; i++)
1084 {
1085 if (!readdir( dir ))
1086 {
1087 closedir( dir );
1088 io->u.Status = STATUS_NO_MORE_FILES;
1089 return;
1090 }
1091 }
1092 }
1093 io->u.Status = STATUS_SUCCESS;
1094
1095 while ((de = readdir( dir )))
1096 {
1097 old_pos++;
1098 info = append_entry( buffer, &io->Information, length, de->d_name, NULL, mask );
1099 if (info)
1100 {
1101 last_info = info;
1102 if ((char *)info->FileName + info->FileNameLength > (char *)buffer + length)
1103 {
1104 io->u.Status = STATUS_BUFFER_OVERFLOW;
1105 old_pos--; /* restore pos to previous entry */
1106 break;
1107 }
1108 if (single_entry) break;
1109 /* check if we still have enough space for the largest possible entry */
1110 if (io->Information + max_dir_info_size > length) break;
1111 }
1112 }
1113
1114 lseek( fd, old_pos, SEEK_SET ); /* store dir offset as filepos for fd */
1115 closedir( dir );
1116
1117 if (last_info) last_info->NextEntryOffset = 0;
1118 else io->u.Status = restart_scan ? STATUS_NO_SUCH_FILE : STATUS_NO_MORE_FILES;
1119 }
1120
1121
1122 /******************************************************************************
1123 * NtQueryDirectoryFile [NTDLL.@]
1124 * ZwQueryDirectoryFile [NTDLL.@]
1125 */
1126 NTSTATUS WINAPI NtQueryDirectoryFile( HANDLE handle, HANDLE event,
1127 PIO_APC_ROUTINE apc_routine, PVOID apc_context,
1128 PIO_STATUS_BLOCK io,
1129 PVOID buffer, ULONG length,
1130 FILE_INFORMATION_CLASS info_class,
1131 BOOLEAN single_entry,
1132 PUNICODE_STRING mask,
1133 BOOLEAN restart_scan )
1134 {
1135 int cwd, fd;
1136
1137 TRACE("(%p %p %p %p %p %p 0x%08lx 0x%08x 0x%08x %s 0x%08x\n",
1138 handle, event, apc_routine, apc_context, io, buffer,
1139 length, info_class, single_entry, debugstr_us(mask),
1140 restart_scan);
1141
1142 if (length < sizeof(FILE_BOTH_DIR_INFORMATION)) return STATUS_INFO_LENGTH_MISMATCH;
1143
1144 if (event || apc_routine)
1145 {
1146 FIXME( "Unsupported yet option\n" );
1147 return io->u.Status = STATUS_NOT_IMPLEMENTED;
1148 }
1149 if (info_class != FileBothDirectoryInformation)
1150 {
1151 FIXME( "Unsupported file info class %d\n", info_class );
1152 return io->u.Status = STATUS_NOT_IMPLEMENTED;
1153 }
1154
1155 if ((io->u.Status = wine_server_handle_to_fd( handle, GENERIC_READ, &fd, NULL )) != STATUS_SUCCESS)
1156 return io->u.Status;
1157
1158 io->Information = 0;
1159
1160 RtlEnterCriticalSection( &dir_section );
1161
1162 if (show_dot_files == -1) init_options();
1163
1164 if ((cwd = open(".", O_RDONLY)) != -1 && fchdir( fd ) != -1)
1165 {
1166 #ifdef VFAT_IOCTL_READDIR_BOTH
1167 if ((read_directory_vfat( fd, io, buffer, length, single_entry, mask, restart_scan )) == -1)
1168 #endif
1169 #ifdef USE_GETDENTS
1170 if ((read_directory_getdents( fd, io, buffer, length, single_entry, mask, restart_scan )) == -1)
1171 #endif
1172 read_directory_readdir( fd, io, buffer, length, single_entry, mask, restart_scan );
1173
1174 if (fchdir( cwd ) == -1) chdir( "/" );
1175 }
1176 else io->u.Status = FILE_GetNtStatus();
1177
1178 RtlLeaveCriticalSection( &dir_section );
1179
1180 wine_server_release_fd( handle, fd );
1181 if (cwd != -1) close( cwd );
1182 TRACE( "=> %lx (%ld)\n", io->u.Status, io->Information );
1183 return io->u.Status;
1184 }
1185
1186
1187 /***********************************************************************
1188 * find_file_in_dir
1189 *
1190 * Find a file in a directory the hard way, by doing a case-insensitive search.
1191 * The file found is appended to unix_name at pos.
1192 * There must be at least MAX_DIR_ENTRY_LEN+2 chars available at pos.
1193 */
1194 static NTSTATUS find_file_in_dir( char *unix_name, int pos, const WCHAR *name, int length,
1195 int check_case )
1196 {
1197 WCHAR buffer[MAX_DIR_ENTRY_LEN];
1198 UNICODE_STRING str;
1199 BOOLEAN spaces;
1200 DIR *dir;
1201 struct dirent *de;
1202 struct stat st;
1203 int ret, used_default, is_name_8_dot_3;
1204
1205 /* try a shortcut for this directory */
1206
1207 unix_name[pos++] = '/';
1208 ret = ntdll_wcstoumbs( 0, name, length, unix_name + pos, MAX_DIR_ENTRY_LEN,
1209 NULL, &used_default );
1210 /* if we used the default char, the Unix name won't round trip properly back to Unicode */
1211 /* so it cannot match the file we are looking for */
1212 if (ret >= 0 && !used_default)
1213 {
1214 unix_name[pos + ret] = 0;
1215 if (!stat( unix_name, &st )) return STATUS_SUCCESS;
1216 }
1217 if (check_case) goto not_found; /* we want an exact match */
1218
1219 if (pos > 1) unix_name[pos - 1] = 0;
1220 else unix_name[1] = 0; /* keep the initial slash */
1221
1222 /* check if it fits in 8.3 so that we don't look for short names if we won't need them */
1223
1224 str.Buffer = (WCHAR *)name;
1225 str.Length = length * sizeof(WCHAR);
1226 str.MaximumLength = str.Length;
1227 is_name_8_dot_3 = RtlIsNameLegalDOS8Dot3( &str, NULL, &spaces ) && !spaces;
1228
1229 /* now look for it through the directory */
1230
1231 #ifdef VFAT_IOCTL_READDIR_BOTH
1232 if (is_name_8_dot_3)
1233 {
1234 int fd = open( unix_name, O_RDONLY | O_DIRECTORY );
1235 if (fd != -1)
1236 {
1237 KERNEL_DIRENT de[2];
1238
1239 /* Set d_reclen to 65535 to work around an AFS kernel bug */
1240 de[0].d_reclen = 65535;
1241 if (ioctl( fd, VFAT_IOCTL_READDIR_BOTH, (long)de ) != -1 &&
1242 de[0].d_reclen != 65535)
1243 {
1244 unix_name[pos - 1] = '/';
1245 for (;;)
1246 {
1247 if (!de[0].d_reclen) break;
1248
1249 if (de[1].d_name[0])
1250 {
1251 ret = ntdll_umbstowcs( 0, de[1].d_name, strlen(de[1].d_name),
1252 buffer, MAX_DIR_ENTRY_LEN );
1253 if (ret == length && !memicmpW( buffer, name, length))
1254 {
1255 strcpy( unix_name + pos, de[1].d_name );
1256 close( fd );
1257 return STATUS_SUCCESS;
1258 }
1259 }
1260 ret = ntdll_umbstowcs( 0, de[0].d_name, strlen(de[0].d_name),
1261 buffer, MAX_DIR_ENTRY_LEN );
1262 if (ret == length && !memicmpW( buffer, name, length))
1263 {
1264 strcpy( unix_name + pos,
1265 de[1].d_name[0] ? de[1].d_name : de[0].d_name );
1266 close( fd );
1267 return STATUS_SUCCESS;
1268 }
1269 if (ioctl( fd, VFAT_IOCTL_READDIR_BOTH, (long)de ) == -1)
1270 {
1271 close( fd );
1272 goto not_found;
1273 }
1274 }
1275 }
1276 close( fd );
1277 }
1278 /* fall through to normal handling */
1279 }
1280 #endif /* VFAT_IOCTL_READDIR_BOTH */
1281
1282 if (!(dir = opendir( unix_name )))
1283 {
1284 if (errno == ENOENT) return STATUS_OBJECT_PATH_NOT_FOUND;
1285 else return FILE_GetNtStatus();
1286 }
1287 unix_name[pos - 1] = '/';
1288 str.Buffer = buffer;
1289 str.MaximumLength = sizeof(buffer);
1290 while ((de = readdir( dir )))
1291 {
1292 ret = ntdll_umbstowcs( 0, de->d_name, strlen(de->d_name), buffer, MAX_DIR_ENTRY_LEN );
1293 if (ret == length && !memicmpW( buffer, name, length ))
1294 {
1295 strcpy( unix_name + pos, de->d_name );
1296 closedir( dir );
1297 return STATUS_SUCCESS;
1298 }
1299
1300 if (!is_name_8_dot_3) continue;
1301
1302 str.Length = ret * sizeof(WCHAR);
1303 if (!RtlIsNameLegalDOS8Dot3( &str, NULL, &spaces ) || spaces)
1304 {
1305 WCHAR short_nameW[12];
1306 ret = hash_short_file_name( &str, short_nameW );
1307 if (ret == length && !memicmpW( short_nameW, name, length ))
1308 {
1309 strcpy( unix_name + pos, de->d_name );
1310 closedir( dir );
1311 return STATUS_SUCCESS;
1312 }
1313 }
1314 }
1315 closedir( dir );
1316 goto not_found; /* avoid warning */
1317
1318 not_found:
1319 unix_name[pos - 1] = 0;
1320 return STATUS_OBJECT_PATH_NOT_FOUND;
1321 }
1322
1323
1324 /******************************************************************************
1325 * get_dos_device
1326 *
1327 * Get the Unix path of a DOS device.
1328 */
1329 static NTSTATUS get_dos_device( const WCHAR *name, UINT name_len, ANSI_STRING *unix_name_ret )
1330 {
1331 const char *config_dir = wine_get_config_dir();
1332 struct stat st;
1333 char *unix_name, *new_name, *dev;
1334 unsigned int i;
1335 int unix_len;
1336
1337 /* make sure the device name is ASCII */
1338 for (i = 0; i < name_len; i++)
1339 if (name[i] <= 32 || name[i] >= 127) return STATUS_OBJECT_NAME_NOT_FOUND;
1340
1341 unix_len = strlen(config_dir) + sizeof("/dosdevices/") + name_len + 1;
1342
1343 if (!(unix_name = RtlAllocateHeap( GetProcessHeap(), 0, unix_len )))
1344 return STATUS_NO_MEMORY;
1345
1346 strcpy( unix_name, config_dir );
1347 strcat( unix_name, "/dosdevices/" );
1348 dev = unix_name + strlen(unix_name);
1349
1350 for (i = 0; i < name_len; i++) dev[i] = (char)tolowerW(name[i]);
1351 dev[i] = 0;
1352
1353 /* special case for drive devices */
1354 if (name_len == 2 && dev[1] == ':')
1355 {
1356 dev[i++] = ':';
1357 dev[i] = 0;
1358 }
1359
1360 for (;;)
1361 {
1362 if (!stat( unix_name, &st ))
1363 {
1364 TRACE( "%s -> %s\n", debugstr_wn(name,name_len), debugstr_a(unix_name) );
1365 unix_name_ret->Buffer = unix_name;
1366 unix_name_ret->Length = strlen(unix_name);
1367 unix_name_ret->MaximumLength = unix_len;
1368 return STATUS_SUCCESS;
1369 }
1370 if (!dev) break;
1371
1372 /* now try some defaults for it */
1373 if (!strcmp( dev, "aux" ))
1374 {
1375 strcpy( dev, "com1" );
1376 continue;
1377 }
1378 if (!strcmp( dev, "prn" ))
1379 {
1380 strcpy( dev, "lpt1" );
1381 continue;
1382 }
1383 if (!strcmp( dev, "nul" ))
1384 {
1385 strcpy( unix_name, "/dev/null" );
1386 dev = NULL; /* last try */
1387 continue;
1388 }
1389
1390 new_name = NULL;
1391 if (dev[1] == ':' && dev[2] == ':') /* drive device */
1392 {
1393 dev[2] = 0; /* remove last ':' to get the drive mount point symlink */
1394 new_name = get_default_drive_device( unix_name );
1395 }
1396 else if (!strncmp( dev, "com", 3 )) new_name = get_default_com_device( dev[3] - '0' );
1397 else if (!strncmp( dev, "lpt", 3 )) new_name = get_default_lpt_device( dev[3] - '0' );
1398
1399 if (!new_name) break;
1400
1401 RtlFreeHeap( GetProcessHeap(), 0, unix_name );
1402 unix_name = new_name;
1403 unix_len = strlen(unix_name) + 1;
1404 dev = NULL; /* last try */
1405 }
1406 RtlFreeHeap( GetProcessHeap(), 0, unix_name );
1407 return STATUS_OBJECT_NAME_NOT_FOUND;
1408 }
1409
1410
1411 /* return the length of the DOS namespace prefix if any */
1412 static inline int get_dos_prefix_len( const UNICODE_STRING *name )
1413 {
1414 static const WCHAR nt_prefixW[] = {'\\','?','?','\\'};
1415 static const WCHAR dosdev_prefixW[] = {'\\','D','o','s','D','e','v','i','c','e','s','\\'};
1416
1417 if (name->Length > sizeof(nt_prefixW) &&
1418 !memcmp( name->Buffer, nt_prefixW, sizeof(nt_prefixW) ))
1419 return sizeof(nt_prefixW) / sizeof(WCHAR);
1420
1421 if (name->Length > sizeof(dosdev_prefixW) &&
1422 !memicmpW( name->Buffer, dosdev_prefixW, sizeof(dosdev_prefixW)/sizeof(WCHAR) ))
1423 return sizeof(dosdev_prefixW) / sizeof(WCHAR);
1424
1425 return 0;
1426 }
1427
1428
1429 /******************************************************************************
1430 * wine_nt_to_unix_file_name (NTDLL.@) Not a Windows API
1431 *
1432 * Convert a file name from NT namespace to Unix namespace.
1433 *
1434 * If disposition is not FILE_OPEN or FILE_OVERWRITTE, the last path
1435 * element doesn't have to exist; in that case STATUS_NO_SUCH_FILE is
1436 * returned, but the unix name is still filled in properly.
1437 */
1438 NTSTATUS wine_nt_to_unix_file_name( const UNICODE_STRING *nameW, ANSI_STRING *unix_name_ret,
1439 UINT disposition, BOOLEAN check_case )
1440 {
1441 static const WCHAR uncW[] = {'U','N','C','\\'};
1442 static const WCHAR invalid_charsW[] = { INVALID_NT_CHARS, 0 };
1443
1444 NTSTATUS status = STATUS_SUCCESS;
1445 const char *config_dir = wine_get_config_dir();
1446 const WCHAR *name, *p;
1447 struct stat st;
1448 char *unix_name;
1449 int pos, ret, name_len, unix_len, used_default;
1450
1451 name = nameW->Buffer;
1452 name_len = nameW->Length / sizeof(WCHAR);
1453
1454 if (!name_len || !IS_SEPARATOR(name[0])) return STATUS_OBJECT_PATH_SYNTAX_BAD;
1455
1456 if ((pos = get_dos_prefix_len( nameW )))
1457 {
1458 BOOLEAN is_unc = FALSE;
1459
1460 name += pos;
1461 name_len -= pos;
1462
1463 /* check for UNC prefix */
1464 if (name_len > 4 && !memicmpW( name, uncW, 4 ))
1465 {
1466 name += 3;
1467 name_len -= 3;
1468 is_unc = TRUE;
1469 }
1470 else
1471 {
1472 /* check for a drive letter with path */
1473 if (name_len < 3 || !isalphaW(name[0]) || name[1] != ':' || !IS_SEPARATOR(name[2]))
1474 {
1475 /* not a drive with path, try other DOS devices */
1476 return get_dos_device( name, name_len, unix_name_ret );
1477 }
1478 name += 2; /* skip drive letter */
1479 name_len -= 2;
1480 }
1481
1482 /* check for invalid characters */
1483 for (p = name; p < name + name_len; p++)
1484 if (*p < 32 || strchrW( invalid_charsW, *p )) return STATUS_OBJECT_NAME_INVALID;
1485
1486 unix_len = ntdll_wcstoumbs( 0, name, name_len, NULL, 0, NULL, NULL );
1487 unix_len += MAX_DIR_ENTRY_LEN + 3;
1488 unix_len += strlen(config_dir) + sizeof("/dosdevices/") + 3;
1489 if (!(unix_name = RtlAllocateHeap( GetProcessHeap(), 0, unix_len )))
1490 return STATUS_NO_MEMORY;
1491 strcpy( unix_name, config_dir );
1492 strcat( unix_name, "/dosdevices/" );
1493 pos = strlen(unix_name);
1494 if (is_unc)
1495 {
1496 strcpy( unix_name + pos, "unc" );
1497 pos += 3;
1498 }
1499 else
1500 {
1501 unix_name[pos++] = tolowerW( name[-2] );
1502 unix_name[pos++] = ':';
1503 unix_name[pos] = 0;
1504 }
1505 }
1506 else /* no DOS prefix, assume NT native name, map directly to Unix */
1507 {
1508 if (!name_len || !IS_SEPARATOR(name[0])) return STATUS_OBJECT_NAME_INVALID;
1509 unix_len = ntdll_wcstoumbs( 0, name, name_len, NULL, 0, NULL, NULL );
1510 unix_len += MAX_DIR_ENTRY_LEN + 3;
1511 if (!(unix_name = RtlAllocateHeap( GetProcessHeap(), 0, unix_len )))
1512 return STATUS_NO_MEMORY;
1513 pos = 0;
1514 }
1515
1516 /* try a shortcut first */
1517
1518 ret = ntdll_wcstoumbs( 0, name, name_len, unix_name + pos, unix_len - pos - 1,
1519 NULL, &used_default );
1520
1521 while (name_len && IS_SEPARATOR(*name))
1522 {
1523 name++;
1524 name_len--;
1525 }
1526
1527 if (ret > 0 && !used_default) /* if we used the default char the name didn't convert properly */
1528 {
1529 char *p;
1530 unix_name[pos + ret] = 0;
1531 for (p = unix_name + pos ; *p; p++) if (*p == '\\') *p = '/';
1532 if (!stat( unix_name, &st ))
1533 {
1534 /* creation fails with STATUS_ACCESS_DENIED for the root of the drive */
1535 if (disposition == FILE_CREATE)
1536 return name_len ? STATUS_OBJECT_NAME_COLLISION : STATUS_ACCESS_DENIED;
1537 goto done;
1538 }
1539 }
1540
1541 if (!name_len) /* empty name -> drive root doesn't exist */
1542 {
1543 RtlFreeHeap( GetProcessHeap(), 0, unix_name );
1544 return STATUS_OBJECT_PATH_NOT_FOUND;
1545 }
1546 if (check_case && (disposition == FILE_OPEN || disposition == FILE_OVERWRITE))
1547 {
1548 RtlFreeHeap( GetProcessHeap(), 0, unix_name );
1549 return STATUS_OBJECT_NAME_NOT_FOUND;
1550 }
1551
1552 /* now do it component by component */
1553
1554 while (name_len)
1555 {
1556 const WCHAR *end, *next;
1557
1558 end = name;
1559 while (end < name + name_len && !IS_SEPARATOR(*end)) end++;
1560 next = end;
1561 while (next < name + name_len && IS_SEPARATOR(*next)) next++;
1562 name_len -= next - name;
1563
1564 /* grow the buffer if needed */
1565
1566 if (unix_len - pos < MAX_DIR_ENTRY_LEN + 2)
1567 {
1568 char *new_name;
1569 unix_len += 2 * MAX_DIR_ENTRY_LEN;
1570 if (!(new_name = RtlReAllocateHeap( GetProcessHeap(), 0, unix_name, unix_len )))
1571 {
1572 RtlFreeHeap( GetProcessHeap(), 0, unix_name );
1573 return STATUS_NO_MEMORY;
1574 }
1575 unix_name = new_name;
1576 }
1577
1578 status = find_file_in_dir( unix_name, pos, name, end - name, check_case );
1579
1580 /* if this is the last element, not finding it is not necessarily fatal */
1581 if (!name_len)
1582 {
1583 if (status == STATUS_OBJECT_PATH_NOT_FOUND)
1584 {
1585 status = STATUS_OBJECT_NAME_NOT_FOUND;
1586 if (disposition != FILE_OPEN && disposition != FILE_OVERWRITE)
1587 {
1588 ret = ntdll_wcstoumbs( 0, name, end - name, unix_name + pos + 1,
1589 MAX_DIR_ENTRY_LEN, NULL, &used_default );
1590 if (ret > 0 && !used_default)
1591 {
1592 unix_name[pos] = '/';
1593 unix_name[pos + 1 + ret] = 0;
1594 status = STATUS_NO_SUCH_FILE;
1595 break;
1596 }
1597 }
1598 }
1599 else if (status == STATUS_SUCCESS && disposition == FILE_CREATE)
1600 {
1601 status = STATUS_OBJECT_NAME_COLLISION;
1602 }
1603 }
1604
1605 if (status != STATUS_SUCCESS)
1606 {
1607 /* couldn't find it at all, fail */
1608 WARN( "%s not found in %s\n", debugstr_w(name), unix_name );
1609 RtlFreeHeap( GetProcessHeap(), 0, unix_name );
1610 return status;
1611 }
1612
1613 pos += strlen( unix_name + pos );
1614 name = next;
1615 }
1616
1617 WARN( "%s -> %s required a case-insensitive search\n",
1618 debugstr_us(nameW), debugstr_a(unix_name) );
1619
1620 done:
1621 TRACE( "%s -> %s\n", debugstr_us(nameW), debugstr_a(unix_name) );
1622 unix_name_ret->Buffer = unix_name;
1623 unix_name_ret->Length = strlen(unix_name);
1624 unix_name_ret->MaximumLength = unix_len;
1625 return status;
1626 }
1627
1628
1629 /******************************************************************
1630 * RtlDoesFileExists_U (NTDLL.@)
1631 */
1632 BOOLEAN WINAPI RtlDoesFileExists_U(LPCWSTR file_name)
1633 {
1634 UNICODE_STRING nt_name;
1635 ANSI_STRING unix_name;
1636 BOOLEAN ret;
1637
1638 if (!RtlDosPathNameToNtPathName_U( file_name, &nt_name, NULL, NULL )) return FALSE;
1639 ret = (wine_nt_to_unix_file_name( &nt_name, &unix_name, FILE_OPEN, FALSE ) == STATUS_SUCCESS);
1640 if (ret) RtlFreeAnsiString( &unix_name );
1641 RtlFreeUnicodeString( &nt_name );
1642 return ret;
1643 }
1644
1645
1646 /***********************************************************************
1647 * DIR_unmount_device
1648 *
1649 * Unmount the specified device.
1650 */
1651 NTSTATUS DIR_unmount_device( HANDLE handle )
1652 {
1653 NTSTATUS status;
1654 int unix_fd;
1655
1656 SERVER_START_REQ( unmount_device )
1657 {
1658 req->handle = handle;
1659 status = wine_server_call( req );
1660 }
1661 SERVER_END_REQ;
1662 if (status) return status;
1663
1664 if (!(status = wine_server_handle_to_fd( handle, 0, &unix_fd, NULL )))
1665 {
1666 struct stat st;
1667 char *mount_point = NULL;
1668
1669 if (fstat( unix_fd, &st ) == -1 || !S_ISBLK(st.st_mode))
1670 status = STATUS_INVALID_PARAMETER;
1671 else
1672 {
1673 if ((mount_point = get_device_mount_point( st.st_rdev )))
1674 {
1675 static const char umount[] = "umount >/dev/null 2>&1 ";
1676 char *cmd = RtlAllocateHeap( GetProcessHeap(), 0, strlen(mount_point)+sizeof(umount));
1677 if (cmd)
1678 {
1679 strcpy( cmd, umount );
1680 strcat( cmd, mount_point );
1681 system( cmd );
1682 RtlFreeHeap( GetProcessHeap(), 0, cmd );
1683 #ifdef linux
1684 /* umount will fail to release the loop device since we still have
1685 a handle to it, so we release it here */
1686 if (major(st.st_rdev) == LOOP_MAJOR) ioctl( unix_fd, 0x4c01 /*LOOP_CLR_FD*/, 0 );
1687 #endif
1688 }
1689 RtlFreeHeap( GetProcessHeap(), 0, mount_point );
1690 }
1691 }
1692 wine_server_release_fd( handle, unix_fd );
1693 }
1694 return status;
1695 }
1696
1697
1698 /******************************************************************************
1699 * DIR_get_unix_cwd
1700 *
1701 * Retrieve the Unix name of the current directory; helper for wine_unix_to_nt_file_name.
1702 * Returned value must be freed by caller.
1703 */
1704 NTSTATUS DIR_get_unix_cwd( char **cwd )
1705 {
1706 int old_cwd, unix_fd;
1707 CURDIR *curdir;
1708 HANDLE handle;
1709 NTSTATUS status;
1710
1711 RtlAcquirePebLock();
1712
1713 if (NtCurrentTeb()->Tib.SubSystemTib) /* FIXME: hack */
1714 curdir = &((WIN16_SUBSYSTEM_TIB *)NtCurrentTeb()->Tib.SubSystemTib)->curdir;
1715 else
1716 curdir = &NtCurrentTeb()->Peb->ProcessParameters->CurrentDirectory;
1717
1718 if (!(handle = curdir->Handle))
1719 {
1720 UNICODE_STRING dirW;
1721 OBJECT_ATTRIBUTES attr;
1722 IO_STATUS_BLOCK io;
1723
1724 if (!RtlDosPathNameToNtPathName_U( curdir->DosPath.Buffer, &dirW, NULL, NULL ))
1725 {
1726 status = STATUS_OBJECT_NAME_INVALID;
1727 goto done;
1728 }
1729 attr.Length = sizeof(attr);
1730 attr.RootDirectory = 0;
1731 attr.Attributes = OBJ_CASE_INSENSITIVE;
1732 attr.ObjectName = &dirW;
1733 attr.SecurityDescriptor = NULL;
1734 attr.SecurityQualityOfService = NULL;
1735
1736 status = NtOpenFile( &handle, 0, &attr, &io, 0,
1737 FILE_DIRECTORY_FILE | FILE_SYNCHRONOUS_IO_NONALERT );
1738 RtlFreeUnicodeString( &dirW );
1739 if (status != STATUS_SUCCESS) goto done;
1740 }
1741
1742 if ((status = wine_server_handle_to_fd( handle, 0, &unix_fd, NULL )) == STATUS_SUCCESS)
1743 {
1744 RtlEnterCriticalSection( &dir_section );
1745
1746 if ((old_cwd = open(".", O_RDONLY)) != -1 && fchdir( unix_fd ) != -1)
1747 {
1748 unsigned int size = 512;
1749
1750 for (;;)
1751 {
1752 if (!(*cwd = RtlAllocateHeap( GetProcessHeap(), 0, size )))
1753 {
1754 status = STATUS_NO_MEMORY;
1755 break;
1756 }
1757 if (getcwd( *cwd, size )) break;
1758 RtlFreeHeap( GetProcessHeap(), 0, *cwd );
1759 if (errno != ERANGE)
1760 {
1761 status = STATUS_OBJECT_PATH_INVALID;
1762 break;
1763 }
1764 size *= 2;
1765 }
1766 if (fchdir( old_cwd ) == -1) chdir( "/" );
1767 }
1768 else status = FILE_GetNtStatus();
1769
1770 RtlLeaveCriticalSection( &dir_section );
1771 wine_server_release_fd( handle, unix_fd );
1772 }
1773 if (!curdir->Handle) NtClose( handle );
1774
1775 done:
1776 RtlReleasePebLock();
1777 return status;
1778 }
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