2 * NTDLL directory functions
4 * Copyright 1993 Erik Bos
5 * Copyright 2003 Eric Pouech
6 * Copyright 1996, 2004 Alexandre Julliard
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.
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.
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
24 #include "wine/port.h"
26 #include <sys/types.h>
38 #ifdef HAVE_SYS_IOCTL_H
39 #include <sys/ioctl.h>
41 #ifdef HAVE_LINUX_IOCTL_H
42 #include <linux/ioctl.h>
44 #ifdef HAVE_SYS_PARAM_H
45 #include <sys/param.h>
47 #ifdef HAVE_SYS_MOUNT_H
48 #include <sys/mount.h>
55 #define NONAMELESSUNION
56 #define NONAMELESSSTRUCT
63 #include "ntdll_misc.h"
64 #include "wine/unicode.h"
65 #include "wine/server.h"
66 #include "wine/library.h"
67 #include "wine/debug.h"
69 WINE_DEFAULT_DEBUG_CHANNEL(file);
71 /* Define the VFAT ioctl to get both short and long file names */
72 /* FIXME: is it possible to get this to work on other systems? */
74 /* We want the real kernel dirent structure, not the libc one */
79 unsigned short d_reclen;
83 #define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, KERNEL_DIRENT [2] )
86 # define O_DIRECTORY 0200000 /* must be directory */
89 /* Using the same seekdir value across multiple directories is not portable, */
90 /* but it works on Linux, and it's a major performance gain so we want to use */
92 /* FIXME: do some sort of runtime check instead */
96 #undef VFAT_IOCTL_READDIR_BOTH /* just in case... */
100 #define IS_OPTION_TRUE(ch) ((ch) == 'y' || (ch) == 'Y' || (ch) == 't' || (ch) == 'T' || (ch) == '1')
101 #define IS_SEPARATOR(ch) ((ch) == '\\' || (ch) == '/')
103 #define INVALID_NT_CHARS '*','?','<','>','|','"'
104 #define INVALID_DOS_CHARS INVALID_NT_CHARS,'+','=',',',';','[',']',' ','\345'
106 #define MAX_DIR_ENTRY_LEN 255 /* max length of a directory entry in chars */
108 static int show_dir_symlinks = -1;
109 static int show_dot_files;
111 /* at some point we may want to allow Winelib apps to set this */
112 static const int is_case_sensitive = FALSE;
114 static CRITICAL_SECTION dir_section;
115 static CRITICAL_SECTION_DEBUG critsect_debug =
118 { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
119 0, 0, { 0, (DWORD)(__FILE__ ": dir_section") }
121 static CRITICAL_SECTION dir_section = { &critsect_debug, -1, 0, 0, 0, 0 };
124 /***********************************************************************
127 * Wrapper for supporting seekdir across multiple directory objects.
129 static inline void seekdir_wrapper( DIR *dir, off_t pos )
134 while (pos-- > 0) if (!readdir( dir )) break;
138 /***********************************************************************
141 * Wrapper for supporting telldir across multiple directory objects.
143 static inline off_t telldir_wrapper( DIR *dir, off_t pos, int count )
146 return telldir( dir );
153 /***********************************************************************
154 * get_default_com_device
156 * Return the default device to use for serial ports.
158 static char *get_default_com_device( int num )
162 if (!num || num > 9) return ret;
164 ret = RtlAllocateHeap( GetProcessHeap(), 0, sizeof("/dev/ttyS0") );
167 strcpy( ret, "/dev/ttyS0" );
168 ret[strlen(ret) - 1] = '0' + num - 1;
171 FIXME( "no known default for device com%d\n", num );
177 /***********************************************************************
178 * get_default_lpt_device
180 * Return the default device to use for parallel ports.
182 static char *get_default_lpt_device( int num )
186 if (!num || num > 9) return ret;
188 ret = RtlAllocateHeap( GetProcessHeap(), 0, sizeof("/dev/lp0") );
191 strcpy( ret, "/dev/lp0" );
192 ret[strlen(ret) - 1] = '0' + num - 1;
195 FIXME( "no known default for device lpt%d\n", num );
201 /***********************************************************************
202 * parse_mount_entries
204 * Parse mount entries looking for a given device. Helper for get_default_drive_device.
207 static char *parse_mount_entries( FILE *f, dev_t dev, ino_t ino )
209 struct mntent *entry;
213 while ((entry = getmntent( f )))
215 /* don't even bother stat'ing network mounts, there's no meaningful device anyway */
216 if (!strcmp( entry->mnt_type, "nfs" ) ||
217 !strcmp( entry->mnt_type, "smbfs" ) ||
218 !strcmp( entry->mnt_type, "ncpfs" )) continue;
220 if (stat( entry->mnt_dir, &st ) == -1) continue;
221 if (st.st_dev != dev || st.st_ino != ino) continue;
222 if (!strcmp( entry->mnt_type, "supermount" ))
224 if ((device = strstr( entry->mnt_opts, "dev=" )))
226 char *p = strchr( device + 4, ',' );
232 return entry->mnt_fsname;
238 /***********************************************************************
239 * get_default_drive_device
241 * Return the default device to use for a given drive mount point.
243 static char *get_default_drive_device( const char *root )
253 /* try to open it first to force it to get mounted */
254 if ((fd = open( root, O_RDONLY | O_DIRECTORY )) != -1)
256 res = fstat( fd, &st );
259 /* now try normal stat just in case */
260 if (res == -1) res = stat( root, &st );
261 if (res == -1) return NULL;
263 RtlEnterCriticalSection( &dir_section );
265 if ((f = fopen( "/etc/mtab", "r" )))
267 device = parse_mount_entries( f, st.st_dev, st.st_ino );
270 /* look through fstab too in case it's not mounted (for instance if it's an audio CD) */
271 if (!device && (f = fopen( "/etc/fstab", "r" )))
273 device = parse_mount_entries( f, st.st_dev, st.st_ino );
278 ret = RtlAllocateHeap( GetProcessHeap(), 0, strlen(device) + 1 );
279 if (ret) strcpy( ret, device );
281 RtlLeaveCriticalSection( &dir_section );
282 #elif defined(__APPLE__)
283 struct statfs *mntStat;
289 static const char path_bsd_device[] = "/dev/disk";
292 res = stat( root, &st );
293 if (res == -1) return NULL;
298 RtlEnterCriticalSection( &dir_section );
300 mntSize = getmntinfo(&mntStat, MNT_NOWAIT);
302 for (i = 0; i < mntSize && !ret; i++)
304 if (stat(mntStat[i].f_mntonname, &st ) == -1) continue;
305 if (st.st_dev != dev || st.st_ino != ino) continue;
307 /* FIXME add support for mounted network drive */
308 if ( strncmp(mntStat[i].f_mntfromname, path_bsd_device, strlen(path_bsd_device)) == 0)
310 /* set return value to the corresponding raw BSD node */
311 ret = RtlAllocateHeap( GetProcessHeap(), 0, strlen(mntStat[i].f_mntfromname) + 2 /* 2 : r and \0 */ );
314 strcpy(ret, "/dev/r");
315 strcat(ret, mntStat[i].f_mntfromname+sizeof("/dev/")-1);
319 RtlLeaveCriticalSection( &dir_section );
322 if (!warned++) FIXME( "auto detection of DOS devices not supported on this platform\n" );
328 /***********************************************************************
331 * Initialize the show_dir_symlinks and show_dot_files options.
333 static void init_options(void)
335 static const WCHAR WineW[] = {'M','a','c','h','i','n','e','\\',
336 'S','o','f','t','w','a','r','e','\\',
337 'W','i','n','e','\\','W','i','n','e','\\',
338 'C','o','n','f','i','g','\\','W','i','n','e',0};
339 static const WCHAR ShowDotFilesW[] = {'S','h','o','w','D','o','t','F','i','l','e','s',0};
340 static const WCHAR ShowDirSymlinksW[] = {'S','h','o','w','D','i','r','S','y','m','l','i','n','k','s',0};
344 OBJECT_ATTRIBUTES attr;
345 UNICODE_STRING nameW;
347 show_dot_files = show_dir_symlinks = 0;
349 attr.Length = sizeof(attr);
350 attr.RootDirectory = 0;
351 attr.ObjectName = &nameW;
353 attr.SecurityDescriptor = NULL;
354 attr.SecurityQualityOfService = NULL;
355 RtlInitUnicodeString( &nameW, WineW );
357 if (!NtOpenKey( &hkey, KEY_ALL_ACCESS, &attr ))
359 RtlInitUnicodeString( &nameW, ShowDotFilesW );
360 if (!NtQueryValueKey( hkey, &nameW, KeyValuePartialInformation, tmp, sizeof(tmp), &dummy ))
362 WCHAR *str = (WCHAR *)((KEY_VALUE_PARTIAL_INFORMATION *)tmp)->Data;
363 show_dot_files = IS_OPTION_TRUE( str[0] );
365 RtlInitUnicodeString( &nameW, ShowDirSymlinksW );
366 if (!NtQueryValueKey( hkey, &nameW, KeyValuePartialInformation, tmp, sizeof(tmp), &dummy ))
368 WCHAR *str = (WCHAR *)((KEY_VALUE_PARTIAL_INFORMATION *)tmp)->Data;
369 show_dir_symlinks = IS_OPTION_TRUE( str[0] );
376 /***********************************************************************
379 * Check if the specified file should be hidden based on its name and the show dot files option.
381 BOOL DIR_is_hidden_file( const UNICODE_STRING *name )
385 if (show_dir_symlinks == -1) init_options();
386 if (show_dot_files) return FALSE;
388 end = p = name->Buffer + name->Length/sizeof(WCHAR);
389 while (p > name->Buffer && IS_SEPARATOR(p[-1])) p--;
390 while (p > name->Buffer && !IS_SEPARATOR(p[-1])) p--;
391 if (p == end || *p != '.') return FALSE;
392 /* make sure it isn't '.' or '..' */
393 if (p + 1 == end) return FALSE;
394 if (p[1] == '.' && p + 2 == end) return FALSE;
399 /***********************************************************************
400 * hash_short_file_name
402 * Transform a Unix file name into a hashed DOS name. If the name is a valid
403 * DOS name, it is converted to upper-case; otherwise it is replaced by a
404 * hashed version that fits in 8.3 format.
405 * 'buffer' must be at least 12 characters long.
406 * Returns length of short name in bytes; short name is NOT null-terminated.
408 static ULONG hash_short_file_name( const UNICODE_STRING *name, LPWSTR buffer )
410 static const WCHAR invalid_chars[] = { INVALID_DOS_CHARS,'~','.',0 };
411 static const char hash_chars[32] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ012345";
413 LPCWSTR p, ext, end = name->Buffer + name->Length / sizeof(WCHAR);
418 /* Compute the hash code of the file name */
419 /* If you know something about hash functions, feel free to */
420 /* insert a better algorithm here... */
421 if (!is_case_sensitive)
423 for (p = name->Buffer, hash = 0xbeef; p < end - 1; p++)
424 hash = (hash<<3) ^ (hash>>5) ^ tolowerW(*p) ^ (tolowerW(p[1]) << 8);
425 hash = (hash<<3) ^ (hash>>5) ^ tolowerW(*p); /* Last character */
429 for (p = name->Buffer, hash = 0xbeef; p < end - 1; p++)
430 hash = (hash << 3) ^ (hash >> 5) ^ *p ^ (p[1] << 8);
431 hash = (hash << 3) ^ (hash >> 5) ^ *p; /* Last character */
434 /* Find last dot for start of the extension */
435 for (p = name->Buffer + 1, ext = NULL; p < end - 1; p++) if (*p == '.') ext = p;
437 /* Copy first 4 chars, replacing invalid chars with '_' */
438 for (i = 4, p = name->Buffer, dst = buffer; i > 0; i--, p++)
440 if (p == end || p == ext) break;
441 *dst++ = strchrW( invalid_chars, *p ) ? '_' : toupperW(*p);
443 /* Pad to 5 chars with '~' */
444 while (i-- >= 0) *dst++ = '~';
446 /* Insert hash code converted to 3 ASCII chars */
447 *dst++ = hash_chars[(hash >> 10) & 0x1f];
448 *dst++ = hash_chars[(hash >> 5) & 0x1f];
449 *dst++ = hash_chars[hash & 0x1f];
451 /* Copy the first 3 chars of the extension (if any) */
455 for (i = 3, ext++; (i > 0) && ext < end; i--, ext++)
456 *dst++ = strchrW( invalid_chars, *ext ) ? '_' : toupperW(*ext);
462 /***********************************************************************
465 * Check a long file name against a mask.
467 * Tests (done in W95 DOS shell - case insensitive):
468 * *.txt test1.test.txt *
470 * *.t??????.t* test1.ta.tornado.txt *
471 * *tornado* test1.ta.tornado.txt *
472 * t*t test1.ta.tornado.txt *
474 * ?est??? test1.txt -
475 * *test1.txt* test1.txt *
476 * h?l?o*t.dat hellothisisatest.dat *
478 static BOOLEAN match_filename( const UNICODE_STRING *name_str, const UNICODE_STRING *mask_str )
481 const WCHAR *name = name_str->Buffer;
482 const WCHAR *mask = mask_str->Buffer;
483 const WCHAR *name_end = name + name_str->Length / sizeof(WCHAR);
484 const WCHAR *mask_end = mask + mask_str->Length / sizeof(WCHAR);
485 const WCHAR *lastjoker = NULL;
486 const WCHAR *next_to_retry = NULL;
488 TRACE("(%s, %s)\n", debugstr_us(name_str), debugstr_us(mask_str));
490 while (name < name_end && mask < mask_end)
496 while (mask < mask_end && *mask == '*') mask++; /* Skip consecutive '*' */
497 if (mask == mask_end) return TRUE; /* end of mask is all '*', so match */
500 /* skip to the next match after the joker(s) */
501 if (is_case_sensitive)
502 while (name < name_end && (*name != *mask)) name++;
504 while (name < name_end && (toupperW(*name) != toupperW(*mask))) name++;
505 next_to_retry = name;
512 if (is_case_sensitive) mismatch = (*mask != *name);
513 else mismatch = (toupperW(*mask) != toupperW(*name));
519 if (mask == mask_end)
521 if (name == name_end) return TRUE;
522 if (lastjoker) mask = lastjoker;
525 else /* mismatch ! */
527 if (lastjoker) /* we had an '*', so we can try unlimitedly */
531 /* this scan sequence was a mismatch, so restart
532 * 1 char after the first char we checked last time */
534 name = next_to_retry;
536 else return FALSE; /* bad luck */
541 while (mask < mask_end && ((*mask == '.') || (*mask == '*')))
542 mask++; /* Ignore trailing '.' or '*' in mask */
543 return (name == name_end && mask == mask_end);
547 /***********************************************************************
550 * helper for NtQueryDirectoryFile
552 static FILE_BOTH_DIR_INFORMATION *append_entry( void *info_ptr, ULONG *pos, ULONG max_length,
553 const char *long_name, const char *short_name,
554 const UNICODE_STRING *mask )
556 FILE_BOTH_DIR_INFORMATION *info;
557 int i, long_len, short_len, total_len;
559 WCHAR long_nameW[MAX_DIR_ENTRY_LEN];
560 WCHAR short_nameW[12];
563 long_len = ntdll_umbstowcs( 0, long_name, strlen(long_name), long_nameW, MAX_DIR_ENTRY_LEN );
564 if (long_len == -1) return NULL;
566 str.Buffer = long_nameW;
567 str.Length = long_len * sizeof(WCHAR);
568 str.MaximumLength = sizeof(long_nameW);
572 short_len = ntdll_umbstowcs( 0, short_name, strlen(short_name),
573 short_nameW, sizeof(short_nameW) / sizeof(WCHAR) );
574 if (short_len == -1) short_len = sizeof(short_nameW) / sizeof(WCHAR);
576 else /* generate a short name if necessary */
581 if (!RtlIsNameLegalDOS8Dot3( &str, NULL, &spaces ) || spaces)
582 short_len = hash_short_file_name( &str, short_nameW );
585 TRACE( "long %s short %s mask %s\n",
586 debugstr_us(&str), debugstr_wn(short_nameW, short_len), debugstr_us(mask) );
588 if (mask && !match_filename( &str, mask ))
590 if (!short_len) return NULL; /* no short name to match */
591 str.Buffer = short_nameW;
592 str.Length = short_len * sizeof(WCHAR);
593 str.MaximumLength = sizeof(short_nameW);
594 if (!match_filename( &str, mask )) return NULL;
597 total_len = (sizeof(*info) - sizeof(info->FileName) + long_len*sizeof(WCHAR) + 3) & ~3;
598 info = (FILE_BOTH_DIR_INFORMATION *)((char *)info_ptr + *pos);
600 if (*pos + total_len > max_length) total_len = max_length - *pos;
602 if (lstat( long_name, &st ) == -1) return NULL;
603 if (S_ISLNK( st.st_mode ))
605 if (stat( long_name, &st ) == -1) return NULL;
606 if (S_ISDIR( st.st_mode ) && !show_dir_symlinks) return NULL;
609 info->NextEntryOffset = total_len;
610 info->FileIndex = 0; /* NTFS always has 0 here, so let's not bother with it */
612 RtlSecondsSince1970ToTime( st.st_mtime, &info->CreationTime );
613 RtlSecondsSince1970ToTime( st.st_mtime, &info->LastWriteTime );
614 RtlSecondsSince1970ToTime( st.st_atime, &info->LastAccessTime );
615 RtlSecondsSince1970ToTime( st.st_ctime, &info->ChangeTime );
617 if (S_ISDIR(st.st_mode))
619 info->EndOfFile.QuadPart = info->AllocationSize.QuadPart = 0;
620 info->FileAttributes = FILE_ATTRIBUTE_DIRECTORY;
624 info->EndOfFile.QuadPart = st.st_size;
625 info->AllocationSize.QuadPart = (ULONGLONG)st.st_blocks * 512;
626 info->FileAttributes = FILE_ATTRIBUTE_ARCHIVE;
629 if (!(st.st_mode & S_IWUSR))
630 info->FileAttributes |= FILE_ATTRIBUTE_READONLY;
632 if (!show_dot_files && long_name[0] == '.' && long_name[1] && (long_name[1] != '.' || long_name[2]))
633 info->FileAttributes |= FILE_ATTRIBUTE_HIDDEN;
635 info->EaSize = 0; /* FIXME */
636 info->ShortNameLength = short_len * sizeof(WCHAR);
637 for (i = 0; i < short_len; i++) info->ShortName[i] = toupperW(short_nameW[i]);
638 info->FileNameLength = long_len * sizeof(WCHAR);
639 memcpy( info->FileName, long_nameW,
640 min( info->FileNameLength, total_len-sizeof(*info)+sizeof(info->FileName) ));
647 /******************************************************************************
648 * NtQueryDirectoryFile [NTDLL.@]
649 * ZwQueryDirectoryFile [NTDLL.@]
651 NTSTATUS WINAPI NtQueryDirectoryFile( HANDLE handle, HANDLE event,
652 PIO_APC_ROUTINE apc_routine, PVOID apc_context,
654 PVOID buffer, ULONG length,
655 FILE_INFORMATION_CLASS info_class,
656 BOOLEAN single_entry,
657 PUNICODE_STRING mask,
658 BOOLEAN restart_scan )
661 FILE_BOTH_DIR_INFORMATION *info, *last_info = NULL;
662 static const unsigned int max_dir_info_size = sizeof(*info) + (MAX_DIR_ENTRY_LEN-1) * sizeof(WCHAR);
664 TRACE("(%p %p %p %p %p %p 0x%08lx 0x%08x 0x%08x %s 0x%08x\n",
665 handle, event, apc_routine, apc_context, io, buffer,
666 length, info_class, single_entry, debugstr_us(mask),
669 if (length < sizeof(*info)) return STATUS_INFO_LENGTH_MISMATCH;
671 if (event || apc_routine)
673 FIXME( "Unsupported yet option\n" );
674 return io->u.Status = STATUS_NOT_IMPLEMENTED;
676 if (info_class != FileBothDirectoryInformation)
678 FIXME( "Unsupported file info class %d\n", info_class );
679 return io->u.Status = STATUS_NOT_IMPLEMENTED;
682 if ((io->u.Status = wine_server_handle_to_fd( handle, GENERIC_READ, &fd, NULL )) != STATUS_SUCCESS)
687 RtlEnterCriticalSection( &dir_section );
689 if (show_dir_symlinks == -1) init_options();
691 if ((cwd = open(".", O_RDONLY)) != -1 && fchdir( fd ) != -1)
695 #ifdef VFAT_IOCTL_READDIR_BOTH
698 io->u.Status = STATUS_SUCCESS;
700 /* Check if the VFAT ioctl is supported on this directory */
702 if (restart_scan) lseek( fd, 0, SEEK_SET );
703 else old_pos = lseek( fd, 0, SEEK_CUR );
705 if (ioctl( fd, VFAT_IOCTL_READDIR_BOTH, (long)de ) != -1)
707 if (length < max_dir_info_size) /* we may have to return a partial entry here */
711 if (!de[0].d_reclen) break;
713 info = append_entry( buffer, &io->Information, length,
714 de[1].d_name, de[0].d_name, mask );
716 info = append_entry( buffer, &io->Information, length,
717 de[0].d_name, NULL, mask );
721 if ((char *)info->FileName + info->FileNameLength > (char *)buffer + length)
723 io->u.Status = STATUS_BUFFER_OVERFLOW;
724 lseek( fd, old_pos, SEEK_SET ); /* restore pos to previous entry */
728 old_pos = lseek( fd, 0, SEEK_CUR );
729 if (ioctl( fd, VFAT_IOCTL_READDIR_BOTH, (long)de ) == -1) break;
732 else /* we'll only return full entries, no need to worry about overflow */
736 if (!de[0].d_reclen) break;
738 info = append_entry( buffer, &io->Information, length,
739 de[1].d_name, de[0].d_name, mask );
741 info = append_entry( buffer, &io->Information, length,
742 de[0].d_name, NULL, mask );
746 if (single_entry) break;
747 /* check if we still have enough space for the largest possible entry */
748 if (io->Information + max_dir_info_size > length) break;
750 if (ioctl( fd, VFAT_IOCTL_READDIR_BOTH, (long)de ) == -1) break;
754 else if (errno != ENOENT)
755 #endif /* VFAT_IOCTL_READDIR_BOTH */
760 if (!(dir = opendir( "." )))
762 io->u.Status = FILE_GetNtStatus();
767 old_pos = lseek( fd, 0, SEEK_CUR );
768 seekdir_wrapper( dir, old_pos );
770 io->u.Status = STATUS_SUCCESS;
772 if (length < max_dir_info_size) /* we may have to return a partial entry here */
774 while ((de = readdir( dir )))
776 info = append_entry( buffer, &io->Information, length,
777 de->d_name, NULL, mask );
781 if ((char *)info->FileName + info->FileNameLength > (char *)buffer + length)
782 io->u.Status = STATUS_BUFFER_OVERFLOW;
784 old_pos = telldir_wrapper( dir, old_pos, 1 );
787 old_pos = telldir_wrapper( dir, old_pos, 1 );
790 else /* we'll only return full entries, no need to worry about overflow */
793 while ((de = readdir( dir )))
796 info = append_entry( buffer, &io->Information, length,
797 de->d_name, NULL, mask );
801 if (single_entry) break;
802 /* check if we still have enough space for the largest possible entry */
803 if (io->Information + max_dir_info_size > length) break;
806 old_pos = telldir_wrapper( dir, old_pos, count );
808 lseek( fd, old_pos, SEEK_SET ); /* store dir offset as filepos for fd */
812 if (last_info) last_info->NextEntryOffset = 0;
813 else io->u.Status = restart_scan ? STATUS_NO_SUCH_FILE : STATUS_NO_MORE_FILES;
816 if (fchdir( cwd ) == -1) chdir( "/" );
818 else io->u.Status = FILE_GetNtStatus();
820 RtlLeaveCriticalSection( &dir_section );
822 wine_server_release_fd( handle, fd );
823 if (cwd != -1) close( cwd );
824 TRACE( "=> %lx (%ld)\n", io->u.Status, io->Information );
829 /***********************************************************************
832 * Find a file in a directory the hard way, by doing a case-insensitive search.
833 * The file found is appended to unix_name at pos.
834 * There must be at least MAX_DIR_ENTRY_LEN+2 chars available at pos.
836 static NTSTATUS find_file_in_dir( char *unix_name, int pos, const WCHAR *name, int length,
839 WCHAR buffer[MAX_DIR_ENTRY_LEN];
845 int ret, used_default, is_name_8_dot_3;
847 /* try a shortcut for this directory */
849 unix_name[pos++] = '/';
850 ret = ntdll_wcstoumbs( 0, name, length, unix_name + pos, MAX_DIR_ENTRY_LEN,
851 NULL, &used_default );
852 /* if we used the default char, the Unix name won't round trip properly back to Unicode */
853 /* so it cannot match the file we are looking for */
854 if (ret >= 0 && !used_default)
856 unix_name[pos + ret] = 0;
857 if (!stat( unix_name, &st )) return STATUS_SUCCESS;
859 if (check_case) goto not_found; /* we want an exact match */
861 if (pos > 1) unix_name[pos - 1] = 0;
862 else unix_name[1] = 0; /* keep the initial slash */
864 /* check if it fits in 8.3 so that we don't look for short names if we won't need them */
866 str.Buffer = (WCHAR *)name;
867 str.Length = length * sizeof(WCHAR);
868 str.MaximumLength = str.Length;
869 is_name_8_dot_3 = RtlIsNameLegalDOS8Dot3( &str, NULL, &spaces ) && !spaces;
871 /* now look for it through the directory */
873 #ifdef VFAT_IOCTL_READDIR_BOTH
876 int fd = open( unix_name, O_RDONLY | O_DIRECTORY );
881 if (ioctl( fd, VFAT_IOCTL_READDIR_BOTH, (long)de ) != -1)
883 unix_name[pos - 1] = '/';
886 if (!de[0].d_reclen) break;
890 ret = ntdll_umbstowcs( 0, de[1].d_name, strlen(de[1].d_name),
891 buffer, MAX_DIR_ENTRY_LEN );
892 if (ret == length && !memicmpW( buffer, name, length))
894 strcpy( unix_name + pos, de[1].d_name );
896 return STATUS_SUCCESS;
899 ret = ntdll_umbstowcs( 0, de[0].d_name, strlen(de[0].d_name),
900 buffer, MAX_DIR_ENTRY_LEN );
901 if (ret == length && !memicmpW( buffer, name, length))
903 strcpy( unix_name + pos,
904 de[1].d_name[0] ? de[1].d_name : de[0].d_name );
906 return STATUS_SUCCESS;
908 if (ioctl( fd, VFAT_IOCTL_READDIR_BOTH, (long)de ) == -1)
917 /* fall through to normal handling */
919 #endif /* VFAT_IOCTL_READDIR_BOTH */
921 if (!(dir = opendir( unix_name )))
923 if (errno == ENOENT) return STATUS_OBJECT_PATH_NOT_FOUND;
924 else return FILE_GetNtStatus();
926 unix_name[pos - 1] = '/';
928 str.MaximumLength = sizeof(buffer);
929 while ((de = readdir( dir )))
931 ret = ntdll_umbstowcs( 0, de->d_name, strlen(de->d_name), buffer, MAX_DIR_ENTRY_LEN );
932 if (ret == length && !memicmpW( buffer, name, length ))
934 strcpy( unix_name + pos, de->d_name );
936 return STATUS_SUCCESS;
939 if (!is_name_8_dot_3) continue;
941 str.Length = ret * sizeof(WCHAR);
942 if (!RtlIsNameLegalDOS8Dot3( &str, NULL, &spaces ) || spaces)
944 WCHAR short_nameW[12];
945 ret = hash_short_file_name( &str, short_nameW );
946 if (ret == length && !memicmpW( short_nameW, name, length ))
948 strcpy( unix_name + pos, de->d_name );
950 return STATUS_SUCCESS;
955 goto not_found; /* avoid warning */
958 unix_name[pos - 1] = 0;
959 return STATUS_OBJECT_PATH_NOT_FOUND;
963 /******************************************************************************
966 * Get the Unix path of a DOS device.
968 static NTSTATUS get_dos_device( const WCHAR *name, UINT name_len, ANSI_STRING *unix_name_ret )
970 const char *config_dir = wine_get_config_dir();
972 char *unix_name, *new_name, *dev;
976 /* make sure the device name is ASCII */
977 for (i = 0; i < name_len; i++)
978 if (name[i] <= 32 || name[i] >= 127) return STATUS_OBJECT_NAME_NOT_FOUND;
980 unix_len = strlen(config_dir) + sizeof("/dosdevices/") + name_len + 1;
982 if (!(unix_name = RtlAllocateHeap( GetProcessHeap(), 0, unix_len )))
983 return STATUS_NO_MEMORY;
985 strcpy( unix_name, config_dir );
986 strcat( unix_name, "/dosdevices/" );
987 dev = unix_name + strlen(unix_name);
989 for (i = 0; i < name_len; i++) dev[i] = (char)tolowerW(name[i]);
992 /* special case for drive devices */
993 if (name_len == 2 && dev[1] == ':')
1001 if (!stat( unix_name, &st ))
1003 TRACE( "%s -> %s\n", debugstr_wn(name,name_len), debugstr_a(unix_name) );
1004 unix_name_ret->Buffer = unix_name;
1005 unix_name_ret->Length = strlen(unix_name);
1006 unix_name_ret->MaximumLength = unix_len;
1007 return STATUS_SUCCESS;
1011 /* now try some defaults for it */
1012 if (!strcmp( dev, "aux" ))
1014 strcpy( dev, "com1" );
1017 if (!strcmp( dev, "prn" ))
1019 strcpy( dev, "lpt1" );
1022 if (!strcmp( dev, "nul" ))
1024 strcpy( unix_name, "/dev/null" );
1025 dev = NULL; /* last try */
1030 if (dev[1] == ':' && dev[2] == ':') /* drive device */
1032 dev[2] = 0; /* remove last ':' to get the drive mount point symlink */
1033 new_name = get_default_drive_device( unix_name );
1035 else if (!strncmp( dev, "com", 3 )) new_name = get_default_com_device( dev[3] - '0' );
1036 else if (!strncmp( dev, "lpt", 3 )) new_name = get_default_lpt_device( dev[3] - '0' );
1038 if (!new_name) break;
1040 RtlFreeHeap( GetProcessHeap(), 0, unix_name );
1041 unix_name = new_name;
1042 unix_len = strlen(unix_name) + 1;
1043 dev = NULL; /* last try */
1045 RtlFreeHeap( GetProcessHeap(), 0, unix_name );
1046 return STATUS_OBJECT_NAME_NOT_FOUND;
1050 /* return the length of the DOS namespace prefix if any */
1051 static inline int get_dos_prefix_len( const UNICODE_STRING *name )
1053 static const WCHAR nt_prefixW[] = {'\\','?','?','\\'};
1054 static const WCHAR dosdev_prefixW[] = {'\\','D','o','s','D','e','v','i','c','e','s','\\'};
1056 if (name->Length > sizeof(nt_prefixW) &&
1057 !memcmp( name->Buffer, nt_prefixW, sizeof(nt_prefixW) ))
1058 return sizeof(nt_prefixW) / sizeof(WCHAR);
1060 if (name->Length > sizeof(dosdev_prefixW) &&
1061 !memicmpW( name->Buffer, dosdev_prefixW, sizeof(dosdev_prefixW)/sizeof(WCHAR) ))
1062 return sizeof(dosdev_prefixW) / sizeof(WCHAR);
1068 /******************************************************************************
1069 * wine_nt_to_unix_file_name (NTDLL.@) Not a Windows API
1071 * Convert a file name from NT namespace to Unix namespace.
1073 * If disposition is not FILE_OPEN or FILE_OVERWRITTE, the last path
1074 * element doesn't have to exist; in that case STATUS_NO_SUCH_FILE is
1075 * returned, but the unix name is still filled in properly.
1077 NTSTATUS wine_nt_to_unix_file_name( const UNICODE_STRING *nameW, ANSI_STRING *unix_name_ret,
1078 UINT disposition, BOOLEAN check_case )
1080 static const WCHAR uncW[] = {'U','N','C','\\'};
1081 static const WCHAR invalid_charsW[] = { INVALID_NT_CHARS, 0 };
1083 NTSTATUS status = STATUS_SUCCESS;
1084 const char *config_dir = wine_get_config_dir();
1085 const WCHAR *name, *p;
1088 int pos, ret, name_len, unix_len, used_default;
1090 name = nameW->Buffer;
1091 name_len = nameW->Length / sizeof(WCHAR);
1093 if (!name_len || !IS_SEPARATOR(name[0])) return STATUS_OBJECT_PATH_SYNTAX_BAD;
1095 if ((pos = get_dos_prefix_len( nameW )))
1097 BOOLEAN is_unc = FALSE;
1102 /* check for UNC prefix */
1103 if (name_len > 4 && !memicmpW( name, uncW, 4 ))
1111 /* check for a drive letter with path */
1112 if (name_len < 3 || !isalphaW(name[0]) || name[1] != ':' || !IS_SEPARATOR(name[2]))
1114 /* not a drive with path, try other DOS devices */
1115 return get_dos_device( name, name_len, unix_name_ret );
1117 name += 2; /* skip drive letter */
1121 /* check for invalid characters */
1122 for (p = name; p < name + name_len; p++)
1123 if (*p < 32 || strchrW( invalid_charsW, *p )) return STATUS_OBJECT_NAME_INVALID;
1125 unix_len = ntdll_wcstoumbs( 0, name, name_len, NULL, 0, NULL, NULL );
1126 unix_len += MAX_DIR_ENTRY_LEN + 3;
1127 unix_len += strlen(config_dir) + sizeof("/dosdevices/") + 3;
1128 if (!(unix_name = RtlAllocateHeap( GetProcessHeap(), 0, unix_len )))
1129 return STATUS_NO_MEMORY;
1130 strcpy( unix_name, config_dir );
1131 strcat( unix_name, "/dosdevices/" );
1132 pos = strlen(unix_name);
1135 strcpy( unix_name + pos, "unc" );
1140 unix_name[pos++] = tolowerW( name[-2] );
1141 unix_name[pos++] = ':';
1145 else /* no DOS prefix, assume NT native name, map directly to Unix */
1147 if (!name_len || !IS_SEPARATOR(name[0])) return STATUS_OBJECT_NAME_INVALID;
1148 unix_len = ntdll_wcstoumbs( 0, name, name_len, NULL, 0, NULL, NULL );
1149 unix_len += MAX_DIR_ENTRY_LEN + 3;
1150 if (!(unix_name = RtlAllocateHeap( GetProcessHeap(), 0, unix_len )))
1151 return STATUS_NO_MEMORY;
1155 /* try a shortcut first */
1157 ret = ntdll_wcstoumbs( 0, name, name_len, unix_name + pos, unix_len - pos - 1,
1158 NULL, &used_default );
1160 while (name_len && IS_SEPARATOR(*name))
1166 if (ret > 0 && !used_default) /* if we used the default char the name didn't convert properly */
1169 unix_name[pos + ret] = 0;
1170 for (p = unix_name + pos ; *p; p++) if (*p == '\\') *p = '/';
1171 if (!stat( unix_name, &st ))
1173 /* creation fails with STATUS_ACCESS_DENIED for the root of the drive */
1174 if (disposition == FILE_CREATE)
1175 return name_len ? STATUS_OBJECT_NAME_COLLISION : STATUS_ACCESS_DENIED;
1180 if (!name_len) /* empty name -> drive root doesn't exist */
1182 RtlFreeHeap( GetProcessHeap(), 0, unix_name );
1183 return STATUS_OBJECT_PATH_NOT_FOUND;
1185 if (check_case && (disposition == FILE_OPEN || disposition == FILE_OVERWRITE))
1187 RtlFreeHeap( GetProcessHeap(), 0, unix_name );
1188 return STATUS_OBJECT_NAME_NOT_FOUND;
1191 /* now do it component by component */
1195 const WCHAR *end, *next;
1198 while (end < name + name_len && !IS_SEPARATOR(*end)) end++;
1200 while (next < name + name_len && IS_SEPARATOR(*next)) next++;
1201 name_len -= next - name;
1203 /* grow the buffer if needed */
1205 if (unix_len - pos < MAX_DIR_ENTRY_LEN + 2)
1208 unix_len += 2 * MAX_DIR_ENTRY_LEN;
1209 if (!(new_name = RtlReAllocateHeap( GetProcessHeap(), 0, unix_name, unix_len )))
1211 RtlFreeHeap( GetProcessHeap(), 0, unix_name );
1212 return STATUS_NO_MEMORY;
1214 unix_name = new_name;
1217 status = find_file_in_dir( unix_name, pos, name, end - name, check_case );
1219 /* if this is the last element, not finding it is not necessarily fatal */
1222 if (status == STATUS_OBJECT_PATH_NOT_FOUND)
1224 status = STATUS_OBJECT_NAME_NOT_FOUND;
1225 if (disposition != FILE_OPEN && disposition != FILE_OVERWRITE)
1227 ret = ntdll_wcstoumbs( 0, name, end - name, unix_name + pos + 1,
1228 MAX_DIR_ENTRY_LEN, NULL, &used_default );
1229 if (ret > 0 && !used_default)
1231 unix_name[pos] = '/';
1232 unix_name[pos + 1 + ret] = 0;
1233 status = STATUS_NO_SUCH_FILE;
1238 else if (status == STATUS_SUCCESS && disposition == FILE_CREATE)
1240 status = STATUS_OBJECT_NAME_COLLISION;
1244 if (status != STATUS_SUCCESS)
1246 /* couldn't find it at all, fail */
1247 WARN( "%s not found in %s\n", debugstr_w(name), unix_name );
1248 RtlFreeHeap( GetProcessHeap(), 0, unix_name );
1252 pos += strlen( unix_name + pos );
1256 WARN( "%s -> %s required a case-insensitive search\n",
1257 debugstr_us(nameW), debugstr_a(unix_name) );
1260 TRACE( "%s -> %s\n", debugstr_us(nameW), debugstr_a(unix_name) );
1261 unix_name_ret->Buffer = unix_name;
1262 unix_name_ret->Length = strlen(unix_name);
1263 unix_name_ret->MaximumLength = unix_len;
1268 /******************************************************************
1269 * RtlDoesFileExists_U (NTDLL.@)
1271 BOOLEAN WINAPI RtlDoesFileExists_U(LPCWSTR file_name)
1273 UNICODE_STRING nt_name;
1274 ANSI_STRING unix_name;
1277 if (!RtlDosPathNameToNtPathName_U( file_name, &nt_name, NULL, NULL )) return FALSE;
1278 ret = (wine_nt_to_unix_file_name( &nt_name, &unix_name, FILE_OPEN, FALSE ) == STATUS_SUCCESS);
1279 if (ret) RtlFreeAnsiString( &unix_name );
1280 RtlFreeUnicodeString( &nt_name );