dlls/ntdll/directory.c

   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 #include <sys/stat.h>
  38 #ifdef HAVE_SYS_IOCTL_H
  39 #include <sys/ioctl.h>
  40 #endif
  41 #ifdef HAVE_LINUX_IOCTL_H
  42 #include <linux/ioctl.h>
  43 #endif
  44 #ifdef HAVE_SYS_PARAM_H
  45 #include <sys/param.h>
  46 #endif
  47 #ifdef HAVE_SYS_MOUNT_H
  48 #include <sys/mount.h>
  49 #endif
  50 #include <time.h>
  51 #ifdef HAVE_UNISTD_H
  52 # include <unistd.h>
  53 #endif
  54
  55 #define NONAMELESSUNION
  56 #define NONAMELESSSTRUCT
  57 #include "windef.h"
  58 #include "winbase.h"
  59 #include "winnt.h"
  60 #include "winreg.h"
  61 #include "ntstatus.h"
  62 #include "winternl.h"
  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"
  68
  69 WINE_DEFAULT_DEBUG_CHANNEL(file);
  70
  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? */
  73 #ifdef linux
  74 /* We want the real kernel dirent structure, not the libc one */
  75 typedef struct
  76 {
  77     long d_ino;
  78     long d_off;
  79     unsigned short d_reclen;
  80     char d_name[256];
  81 } KERNEL_DIRENT;
  82
  83 #define VFAT_IOCTL_READDIR_BOTH  _IOR('r', 1, KERNEL_DIRENT [2] )
  84
  85 #ifndef O_DIRECTORY
  86 # define O_DIRECTORY 0200000 /* must be directory */
  87 #endif
  88
  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 */
  91 /* it if possible. */
  92 /* FIXME: do some sort of runtime check instead */
  93 #define USE_SEEKDIR
  94
  95 #else   /* linux */
  96 #undef VFAT_IOCTL_READDIR_BOTH  /* just in case... */
  97 #undef USE_SEEKDIR
  98 #endif  /* linux */
  99
 100 #define IS_OPTION_TRUE(ch) ((ch) == 'y' || (ch) == 'Y' || (ch) == 't' || (ch) == 'T' || (ch) == '1')
 101 #define IS_SEPARATOR(ch)   ((ch) == '\\' || (ch) == '/')
 102
 103 #define INVALID_NT_CHARS   '*','?','<','>','|','"'
 104 #define INVALID_DOS_CHARS  INVALID_NT_CHARS,'+','=',',',';','[',']',' ','\345'
 105
 106 #define MAX_DIR_ENTRY_LEN 255  /* max length of a directory entry in chars */
 107
 108 static int show_dir_symlinks = -1;
 109 static int show_dot_files;
 110
 111 /* at some point we may want to allow Winelib apps to set this */
 112 static const int is_case_sensitive = FALSE;
 113
 114 static CRITICAL_SECTION dir_section;
 115 static CRITICAL_SECTION_DEBUG critsect_debug =
 116 {
 117     0, 0, &dir_section,
 118     { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
 119       0, 0, { 0, (DWORD)(__FILE__ ": dir_section") }
 120 };
 121 static CRITICAL_SECTION dir_section = { &critsect_debug, -1, 0, 0, 0, 0 };
 122
 123
 124 /***********************************************************************
 125  *           seekdir_wrapper
 126  *
 127  * Wrapper for supporting seekdir across multiple directory objects.
 128  */
 129 static inline void seekdir_wrapper( DIR *dir, off_t pos )
 130 {
 131 #ifdef USE_SEEKDIR
 132     seekdir( dir, pos );
 133 #else
 134     while (pos-- > 0) if (!readdir( dir )) break;
 135 #endif
 136 }
 137
 138 /***********************************************************************
 139  *           telldir_wrapper
 140  *
 141  * Wrapper for supporting telldir across multiple directory objects.
 142  */
 143 static inline off_t telldir_wrapper( DIR *dir, off_t pos, int count )
 144 {
 145 #ifdef USE_SEEKDIR
 146     return telldir( dir );
 147 #else
 148     return pos + count;
 149 #endif
 150 }
 151
 152
 153 /***********************************************************************
 154  *           get_default_com_device
 155  *
 156  * Return the default device to use for serial ports.
 157  */
 158 static char *get_default_com_device( int num )
 159 {
 160     char *ret = NULL;
 161
 162     if (!num || num > 9) return ret;
 163 #ifdef linux
 164     ret = RtlAllocateHeap( GetProcessHeap(), 0, sizeof("/dev/ttyS0") );
 165     if (ret)
 166     {
 167         strcpy( ret, "/dev/ttyS0" );
 168         ret[strlen(ret) - 1] = '0' + num - 1;
 169     }
 170 #else
 171     FIXME( "no known default for device com%d\n", num );
 172 #endif
 173     return ret;
 174 }
 175
 176
 177 /***********************************************************************
 178  *           get_default_lpt_device
 179  *
 180  * Return the default device to use for parallel ports.
 181  */
 182 static char *get_default_lpt_device( int num )
 183 {
 184     char *ret = NULL;
 185
 186     if (!num || num > 9) return ret;
 187 #ifdef linux
 188     ret = RtlAllocateHeap( GetProcessHeap(), 0, sizeof("/dev/lp0") );
 189     if (ret)
 190     {
 191         strcpy( ret, "/dev/lp0" );
 192         ret[strlen(ret) - 1] = '0' + num - 1;
 193     }
 194 #else
 195     FIXME( "no known default for device lpt%d\n", num );
 196 #endif
 197     return ret;
 198 }
 199
 200
 201 /***********************************************************************
 202  *           parse_mount_entries
 203  *
 204  * Parse mount entries looking for a given device. Helper for get_default_drive_device.
 205  */
 206 #ifdef linux
 207 static char *parse_mount_entries( FILE *f, dev_t dev, ino_t ino )
 208 {
 209     struct mntent *entry;
 210     struct stat st;
 211     char *device;
 212
 213     while ((entry = getmntent( f )))
 214     {
 215         if (stat( entry->mnt_dir, &st ) == -1) continue;
 216         if (st.st_dev != dev || st.st_ino != ino) continue;
 217         if (!strcmp( entry->mnt_type, "supermount" ))
 218         {
 219             if ((device = strstr( entry->mnt_opts, "dev=" )))
 220             {
 221                 char *p = strchr( device + 4, ',' );
 222                 if (p) *p = 0;
 223                 return device + 4;
 224             }
 225         }
 226         else
 227             return entry->mnt_fsname;
 228     }
 229     return NULL;
 230 }
 231 #endif
 232
 233 /***********************************************************************
 234  *           get_default_drive_device
 235  *
 236  * Return the default device to use for a given drive mount point.
 237  */
 238 static char *get_default_drive_device( const char *root )
 239 {
 240     char *ret = NULL;
 241
 242 #ifdef linux
 243     FILE *f;
 244     char *device = NULL;
 245     int fd, res = -1;
 246     struct stat st;
 247
 248     /* try to open it first to force it to get mounted */
 249     if ((fd = open( root, O_RDONLY | O_DIRECTORY )) != -1)
 250     {
 251         res = fstat( fd, &st );
 252         close( fd );
 253     }
 254     /* now try normal stat just in case */
 255     if (res == -1) res = stat( root, &st );
 256     if (res == -1) return NULL;
 257
 258     RtlEnterCriticalSection( &dir_section );
 259
 260     if ((f = fopen( "/etc/mtab", "r" )))
 261     {
 262         device = parse_mount_entries( f, st.st_dev, st.st_ino );
 263         endmntent( f );
 264     }
 265     /* look through fstab too in case it's not mounted (for instance if it's an audio CD) */
 266     if (!device && (f = fopen( "/etc/fstab", "r" )))
 267     {
 268         device = parse_mount_entries( f, st.st_dev, st.st_ino );
 269         endmntent( f );
 270     }
 271     if (device)
 272     {
 273         ret = RtlAllocateHeap( GetProcessHeap(), 0, strlen(device) + 1 );
 274         if (ret) strcpy( ret, device );
 275     }
 276     RtlLeaveCriticalSection( &dir_section );
 277 #elif defined(__APPLE__)
 278     struct statfs *mntStat;
 279     struct stat st;
 280     int i;
 281     int mntSize;
 282     dev_t dev;
 283     ino_t ino;
 284     static const char path_bsd_device[] = "/dev/disk";
 285     int res;
 286
 287     res = stat( root, &st );
 288     if (res == -1) return NULL;
 289
 290     dev = st.st_dev;
 291     ino = st.st_ino;
 292
 293     RtlEnterCriticalSection( &dir_section );
 294
 295     mntSize = getmntinfo(&mntStat, MNT_NOWAIT);
 296
 297     for (i = 0; i < mntSize && !ret; i++)
 298     {
 299         if (stat(mntStat[i].f_mntonname, &st ) == -1) continue;
 300         if (st.st_dev != dev || st.st_ino != ino) continue;
 301
 302         /* FIXME add support for mounted network drive */
 303         if ( strncmp(mntStat[i].f_mntfromname, path_bsd_device, strlen(path_bsd_device)) == 0)
 304         {
 305             /* set return value to the corresponding raw BSD node */
 306             ret = RtlAllocateHeap( GetProcessHeap(), 0, strlen(mntStat[i].f_mntfromname) + 2 /* 2 : r and \0 */ );
 307             if (ret)
 308             {
 309                 strcpy(ret, "/dev/r");
 310                 strcat(ret, mntStat[i].f_mntfromname+sizeof("/dev/")-1);
 311             }
 312         }
 313     }
 314     RtlLeaveCriticalSection( &dir_section );
 315 #else
 316     static int warned;
 317     if (!warned++) FIXME( "auto detection of DOS devices not supported on this platform\n" );
 318 #endif
 319     return ret;
 320 }
 321
 322
 323 /***********************************************************************
 324  *           init_options
 325  *
 326  * Initialize the show_dir_symlinks and show_dot_files options.
 327  */
 328 static void init_options(void)
 329 {
 330     static const WCHAR WineW[] = {'M','a','c','h','i','n','e','\\',
 331                                   'S','o','f','t','w','a','r','e','\\',
 332                                   'W','i','n','e','\\','W','i','n','e','\\',
 333                                   'C','o','n','f','i','g','\\','W','i','n','e',0};
 334     static const WCHAR ShowDotFilesW[] = {'S','h','o','w','D','o','t','F','i','l','e','s',0};
 335     static const WCHAR ShowDirSymlinksW[] = {'S','h','o','w','D','i','r','S','y','m','l','i','n','k','s',0};
 336     char tmp[80];
 337     HKEY hkey;
 338     DWORD dummy;
 339     OBJECT_ATTRIBUTES attr;
 340     UNICODE_STRING nameW;
 341
 342     show_dot_files = show_dir_symlinks = 0;
 343
 344     attr.Length = sizeof(attr);
 345     attr.RootDirectory = 0;
 346     attr.ObjectName = &nameW;
 347     attr.Attributes = 0;
 348     attr.SecurityDescriptor = NULL;
 349     attr.SecurityQualityOfService = NULL;
 350     RtlInitUnicodeString( &nameW, WineW );
 351
 352     if (!NtOpenKey( &hkey, KEY_ALL_ACCESS, &attr ))
 353     {
 354         RtlInitUnicodeString( &nameW, ShowDotFilesW );
 355         if (!NtQueryValueKey( hkey, &nameW, KeyValuePartialInformation, tmp, sizeof(tmp), &dummy ))
 356         {
 357             WCHAR *str = (WCHAR *)((KEY_VALUE_PARTIAL_INFORMATION *)tmp)->Data;
 358             show_dot_files = IS_OPTION_TRUE( str[0] );
 359         }
 360         RtlInitUnicodeString( &nameW, ShowDirSymlinksW );
 361         if (!NtQueryValueKey( hkey, &nameW, KeyValuePartialInformation, tmp, sizeof(tmp), &dummy ))
 362         {
 363             WCHAR *str = (WCHAR *)((KEY_VALUE_PARTIAL_INFORMATION *)tmp)->Data;
 364             show_dir_symlinks = IS_OPTION_TRUE( str[0] );
 365         }
 366         NtClose( hkey );
 367     }
 368 }
 369
 370
 371 /***********************************************************************
 372  *           DIR_is_hidden_file
 373  *
 374  * Check if the specified file should be hidden based on its name and the show dot files option.
 375  */
 376 BOOL DIR_is_hidden_file( const UNICODE_STRING *name )
 377 {
 378     WCHAR *p, *end;
 379
 380     if (show_dir_symlinks == -1) init_options();
 381     if (show_dot_files) return FALSE;
 382
 383     end = p = name->Buffer + name->Length/sizeof(WCHAR);
 384     while (p > name->Buffer && IS_SEPARATOR(p[-1])) p--;
 385     while (p > name->Buffer && !IS_SEPARATOR(p[-1])) p--;
 386     if (p == end || *p != '.') return FALSE;
 387     /* make sure it isn't '.' or '..' */
 388     if (p + 1 == end) return FALSE;
 389     if (p[1] == '.' && p + 2 == end) return FALSE;
 390     return TRUE;
 391 }
 392
 393
 394 /***********************************************************************
 395  *           hash_short_file_name
 396  *
 397  * Transform a Unix file name into a hashed DOS name. If the name is a valid
 398  * DOS name, it is converted to upper-case; otherwise it is replaced by a
 399  * hashed version that fits in 8.3 format.
 400  * 'buffer' must be at least 12 characters long.
 401  * Returns length of short name in bytes; short name is NOT null-terminated.
 402  */
 403 static ULONG hash_short_file_name( const UNICODE_STRING *name, LPWSTR buffer )
 404 {
 405     static const WCHAR invalid_chars[] = { INVALID_DOS_CHARS,'~','.',0 };
 406     static const char hash_chars[32] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ012345";
 407
 408     LPCWSTR p, ext, end = name->Buffer + name->Length / sizeof(WCHAR);
 409     LPWSTR dst;
 410     unsigned short hash;
 411     int i;
 412
 413     /* Compute the hash code of the file name */
 414     /* If you know something about hash functions, feel free to */
 415     /* insert a better algorithm here... */
 416     if (!is_case_sensitive)
 417     {
 418         for (p = name->Buffer, hash = 0xbeef; p < end - 1; p++)
 419             hash = (hash<<3) ^ (hash>>5) ^ tolowerW(*p) ^ (tolowerW(p[1]) << 8);
 420         hash = (hash<<3) ^ (hash>>5) ^ tolowerW(*p); /* Last character */
 421     }
 422     else
 423     {
 424         for (p = name->Buffer, hash = 0xbeef; p < end - 1; p++)
 425             hash = (hash << 3) ^ (hash >> 5) ^ *p ^ (p[1] << 8);
 426         hash = (hash << 3) ^ (hash >> 5) ^ *p;  /* Last character */
 427     }
 428
 429     /* Find last dot for start of the extension */
 430     for (p = name->Buffer + 1, ext = NULL; p < end - 1; p++) if (*p == '.') ext = p;
 431
 432     /* Copy first 4 chars, replacing invalid chars with '_' */
 433     for (i = 4, p = name->Buffer, dst = buffer; i > 0; i--, p++)
 434     {
 435         if (p == end || p == ext) break;
 436         *dst++ = strchrW( invalid_chars, *p ) ? '_' : toupperW(*p);
 437     }
 438     /* Pad to 5 chars with '~' */
 439     while (i-- >= 0) *dst++ = '~';
 440
 441     /* Insert hash code converted to 3 ASCII chars */
 442     *dst++ = hash_chars[(hash >> 10) & 0x1f];
 443     *dst++ = hash_chars[(hash >> 5) & 0x1f];
 444     *dst++ = hash_chars[hash & 0x1f];
 445
 446     /* Copy the first 3 chars of the extension (if any) */
 447     if (ext)
 448     {
 449         *dst++ = '.';
 450         for (i = 3, ext++; (i > 0) && ext < end; i--, ext++)
 451             *dst++ = strchrW( invalid_chars, *ext ) ? '_' : toupperW(*ext);
 452     }
 453     return dst - buffer;
 454 }
 455
 456
 457 /***********************************************************************
 458  *           match_filename
 459  *
 460  * Check a long file name against a mask.
 461  *
 462  * Tests (done in W95 DOS shell - case insensitive):
 463  * *.txt                        test1.test.txt                          *
 464  * *st1*                        test1.txt                               *
 465  * *.t??????.t*                 test1.ta.tornado.txt                    *
 466  * *tornado*                    test1.ta.tornado.txt                    *
 467  * t*t                          test1.ta.tornado.txt                    *
 468  * ?est*                        test1.txt                               *
 469  * ?est???                      test1.txt                               -
 470  * *test1.txt*                  test1.txt                               *
 471  * h?l?o*t.dat                  hellothisisatest.dat                    *
 472  */
 473 static BOOLEAN match_filename( const UNICODE_STRING *name_str, const UNICODE_STRING *mask_str )
 474 {
 475     int mismatch;
 476     const WCHAR *name = name_str->Buffer;
 477     const WCHAR *mask = mask_str->Buffer;
 478     const WCHAR *name_end = name + name_str->Length / sizeof(WCHAR);
 479     const WCHAR *mask_end = mask + mask_str->Length / sizeof(WCHAR);
 480     const WCHAR *lastjoker = NULL;
 481     const WCHAR *next_to_retry = NULL;
 482
 483     TRACE("(%s, %s)\n", debugstr_us(name_str), debugstr_us(mask_str));
 484
 485     while (name < name_end && mask < mask_end)
 486     {
 487         switch(*mask)
 488         {
 489         case '*':
 490             mask++;
 491             while (mask < mask_end && *mask == '*') mask++;  /* Skip consecutive '*' */
 492             if (mask == mask_end) return TRUE; /* end of mask is all '*', so match */
 493             lastjoker = mask;
 494
 495             /* skip to the next match after the joker(s) */
 496             if (is_case_sensitive)
 497                 while (name < name_end && (*name != *mask)) name++;
 498             else
 499                 while (name < name_end && (toupperW(*name) != toupperW(*mask))) name++;
 500             next_to_retry = name;
 501             break;
 502         case '?':
 503             mask++;
 504             name++;
 505             break;
 506         default:
 507             if (is_case_sensitive) mismatch = (*mask != *name);
 508             else mismatch = (toupperW(*mask) != toupperW(*name));
 509
 510             if (!mismatch)
 511             {
 512                 mask++;
 513                 name++;
 514                 if (mask == mask_end)
 515                 {
 516                     if (name == name_end) return TRUE;
 517                     if (lastjoker) mask = lastjoker;
 518                 }
 519             }
 520             else /* mismatch ! */
 521             {
 522                 if (lastjoker) /* we had an '*', so we can try unlimitedly */
 523                 {
 524                     mask = lastjoker;
 525
 526                     /* this scan sequence was a mismatch, so restart
 527                      * 1 char after the first char we checked last time */
 528                     next_to_retry++;
 529                     name = next_to_retry;
 530                 }
 531                 else return FALSE; /* bad luck */
 532             }
 533             break;
 534         }
 535     }
 536     while (mask < mask_end && ((*mask == '.') || (*mask == '*')))
 537         mask++;  /* Ignore trailing '.' or '*' in mask */
 538     return (name == name_end && mask == mask_end);
 539 }
 540
 541
 542 /***********************************************************************
 543  *           append_entry
 544  *
 545  * helper for NtQueryDirectoryFile
 546  */
 547 static FILE_BOTH_DIR_INFORMATION *append_entry( void *info_ptr, ULONG *pos, ULONG max_length,
 548                                                 const char *long_name, const char *short_name,
 549                                                 const UNICODE_STRING *mask )
 550 {
 551     FILE_BOTH_DIR_INFORMATION *info;
 552     int i, long_len, short_len, total_len;
 553     struct stat st;
 554     WCHAR long_nameW[MAX_DIR_ENTRY_LEN];
 555     WCHAR short_nameW[12];
 556     UNICODE_STRING str;
 557
 558     long_len = ntdll_umbstowcs( 0, long_name, strlen(long_name), long_nameW, MAX_DIR_ENTRY_LEN );
 559     if (long_len == -1) return NULL;
 560
 561     str.Buffer = long_nameW;
 562     str.Length = long_len * sizeof(WCHAR);
 563     str.MaximumLength = sizeof(long_nameW);
 564
 565     if (short_name)
 566     {
 567         short_len = ntdll_umbstowcs( 0, short_name, strlen(short_name),
 568                                      short_nameW, sizeof(short_nameW) / sizeof(WCHAR) );
 569         if (short_len == -1) short_len = sizeof(short_nameW) / sizeof(WCHAR);
 570     }
 571     else  /* generate a short name if necessary */
 572     {
 573         BOOLEAN spaces;
 574
 575         short_len = 0;
 576         if (!RtlIsNameLegalDOS8Dot3( &str, NULL, &spaces ) || spaces)
 577             short_len = hash_short_file_name( &str, short_nameW );
 578     }
 579
 580     TRACE( "long %s short %s mask %s\n",
 581            debugstr_us(&str), debugstr_wn(short_nameW, short_len), debugstr_us(mask) );
 582
 583     if (mask && !match_filename( &str, mask ))
 584     {
 585         if (!short_len) return NULL;  /* no short name to match */
 586         str.Buffer = short_nameW;
 587         str.Length = short_len * sizeof(WCHAR);
 588         str.MaximumLength = sizeof(short_nameW);
 589         if (!match_filename( &str, mask )) return NULL;
 590     }
 591
 592     total_len = (sizeof(*info) - sizeof(info->FileName) + long_len*sizeof(WCHAR) + 3) & ~3;
 593     info = (FILE_BOTH_DIR_INFORMATION *)((char *)info_ptr + *pos);
 594
 595     if (*pos + total_len > max_length) total_len = max_length - *pos;
 596
 597     if (lstat( long_name, &st ) == -1) return NULL;
 598     if (S_ISLNK( st.st_mode ))
 599     {
 600         if (stat( long_name, &st ) == -1) return NULL;
 601         if (S_ISDIR( st.st_mode ) && !show_dir_symlinks) return NULL;
 602     }
 603
 604     info->NextEntryOffset = total_len;
 605     info->FileIndex = 0;  /* NTFS always has 0 here, so let's not bother with it */
 606
 607     RtlSecondsSince1970ToTime( st.st_mtime, &info->CreationTime );
 608     RtlSecondsSince1970ToTime( st.st_mtime, &info->LastWriteTime );
 609     RtlSecondsSince1970ToTime( st.st_atime, &info->LastAccessTime );
 610     RtlSecondsSince1970ToTime( st.st_ctime, &info->ChangeTime );
 611
 612     if (S_ISDIR(st.st_mode))
 613     {
 614         info->EndOfFile.QuadPart = info->AllocationSize.QuadPart = 0;
 615         info->FileAttributes = FILE_ATTRIBUTE_DIRECTORY;
 616     }
 617     else
 618     {
 619         info->EndOfFile.QuadPart = st.st_size;
 620         info->AllocationSize.QuadPart = (ULONGLONG)st.st_blocks * 512;
 621         info->FileAttributes = FILE_ATTRIBUTE_ARCHIVE;
 622     }
 623
 624     if (!(st.st_mode & S_IWUSR))
 625         info->FileAttributes |= FILE_ATTRIBUTE_READONLY;
 626
 627     if (!show_dot_files && long_name[0] == '.' && long_name[1] && (long_name[1] != '.' || long_name[2]))
 628         info->FileAttributes |= FILE_ATTRIBUTE_HIDDEN;
 629
 630     info->EaSize = 0; /* FIXME */
 631     info->ShortNameLength = short_len * sizeof(WCHAR);
 632     for (i = 0; i < short_len; i++) info->ShortName[i] = toupperW(short_nameW[i]);
 633     info->FileNameLength = long_len * sizeof(WCHAR);
 634     memcpy( info->FileName, long_nameW,
 635             min( info->FileNameLength, total_len-sizeof(*info)+sizeof(info->FileName) ));
 636
 637     *pos += total_len;
 638     return info;
 639 }
 640
 641
 642 /******************************************************************************
 643  *  NtQueryDirectoryFile        [NTDLL.@]
 644  *  ZwQueryDirectoryFile        [NTDLL.@]
 645  */
 646 NTSTATUS WINAPI NtQueryDirectoryFile( HANDLE handle, HANDLE event,
 647                                       PIO_APC_ROUTINE apc_routine, PVOID apc_context,
 648                                       PIO_STATUS_BLOCK io,
 649                                       PVOID buffer, ULONG length,
 650                                       FILE_INFORMATION_CLASS info_class,
 651                                       BOOLEAN single_entry,
 652                                       PUNICODE_STRING mask,
 653                                       BOOLEAN restart_scan )
 654 {
 655     int cwd, fd;
 656     FILE_BOTH_DIR_INFORMATION *info, *last_info = NULL;
 657     static const int max_dir_info_size = sizeof(*info) + (MAX_DIR_ENTRY_LEN-1) * sizeof(WCHAR);
 658
 659     TRACE("(%p %p %p %p %p %p 0x%08lx 0x%08x 0x%08x %s 0x%08x\n",
 660           handle, event, apc_routine, apc_context, io, buffer,
 661           length, info_class, single_entry, debugstr_us(mask),
 662           restart_scan);
 663
 664     if (length < sizeof(*info)) return STATUS_INFO_LENGTH_MISMATCH;
 665
 666     if (event || apc_routine)
 667     {
 668         FIXME( "Unsupported yet option\n" );
 669         return io->u.Status = STATUS_NOT_IMPLEMENTED;
 670     }
 671     if (info_class != FileBothDirectoryInformation)
 672     {
 673         FIXME( "Unsupported file info class %d\n", info_class );
 674         return io->u.Status = STATUS_NOT_IMPLEMENTED;
 675     }
 676
 677     if ((io->u.Status = wine_server_handle_to_fd( handle, GENERIC_READ,
 678                                                   &fd, NULL, NULL )) != STATUS_SUCCESS)
 679         return io->u.Status;
 680
 681     io->Information = 0;
 682
 683     RtlEnterCriticalSection( &dir_section );
 684
 685     if (show_dir_symlinks == -1) init_options();
 686
 687     if ((cwd = open(".", O_RDONLY)) != -1 && fchdir( fd ) != -1)
 688     {
 689         off_t old_pos = 0;
 690
 691 #ifdef VFAT_IOCTL_READDIR_BOTH
 692         KERNEL_DIRENT de[2];
 693
 694         io->u.Status = STATUS_SUCCESS;
 695
 696         /* Check if the VFAT ioctl is supported on this directory */
 697
 698         if (restart_scan) lseek( fd, 0, SEEK_SET );
 699         else old_pos = lseek( fd, 0, SEEK_CUR );
 700
 701         if (ioctl( fd, VFAT_IOCTL_READDIR_BOTH, (long)de ) != -1)
 702         {
 703             if (length < max_dir_info_size)  /* we may have to return a partial entry here */
 704             {
 705                 for (;;)
 706                 {
 707                     if (!de[0].d_reclen) break;
 708                     if (de[1].d_name[0])
 709                         info = append_entry( buffer, &io->Information, length,
 710                                              de[1].d_name, de[0].d_name, mask );
 711                     else
 712                         info = append_entry( buffer, &io->Information, length,
 713                                              de[0].d_name, NULL, mask );
 714                     if (info)
 715                     {
 716                         last_info = info;
 717                         if ((char *)info->FileName + info->FileNameLength > (char *)buffer + length)
 718                         {
 719                             io->u.Status = STATUS_BUFFER_OVERFLOW;
 720                             lseek( fd, old_pos, SEEK_SET );  /* restore pos to previous entry */
 721                         }
 722                         break;
 723                     }
 724                     old_pos = lseek( fd, 0, SEEK_CUR );
 725                     if (ioctl( fd, VFAT_IOCTL_READDIR_BOTH, (long)de ) == -1) break;
 726                 }
 727             }
 728             else  /* we'll only return full entries, no need to worry about overflow */
 729             {
 730                 for (;;)
 731                 {
 732                     if (!de[0].d_reclen) break;
 733                     if (de[1].d_name[0])
 734                         info = append_entry( buffer, &io->Information, length,
 735                                              de[1].d_name, de[0].d_name, mask );
 736                     else
 737                         info = append_entry( buffer, &io->Information, length,
 738                                              de[0].d_name, NULL, mask );
 739                     if (info)
 740                     {
 741                         last_info = info;
 742                         if (single_entry) break;
 743                         /* check if we still have enough space for the largest possible entry */
 744                         if (io->Information + max_dir_info_size > length) break;
 745                     }
 746                     if (ioctl( fd, VFAT_IOCTL_READDIR_BOTH, (long)de ) == -1) break;
 747                 }
 748             }
 749         }
 750         else if (errno != ENOENT)
 751 #endif  /* VFAT_IOCTL_READDIR_BOTH */
 752         {
 753             DIR *dir;
 754             struct dirent *de;
 755
 756             if (!(dir = opendir( "." )))
 757             {
 758                 io->u.Status = FILE_GetNtStatus();
 759                 goto done;
 760             }
 761             if (!restart_scan)
 762             {
 763                 old_pos = lseek( fd, 0, SEEK_CUR );
 764                 seekdir_wrapper( dir, old_pos );
 765             }
 766             io->u.Status = STATUS_SUCCESS;
 767
 768             if (length < max_dir_info_size)  /* we may have to return a partial entry here */
 769             {
 770                 while ((de = readdir( dir )))
 771                 {
 772                     info = append_entry( buffer, &io->Information, length,
 773                                          de->d_name, NULL, mask );
 774                     if (info)
 775                     {
 776                         last_info = info;
 777                         if ((char *)info->FileName + info->FileNameLength > (char *)buffer + length)
 778                             io->u.Status = STATUS_BUFFER_OVERFLOW;
 779                         else
 780                             old_pos = telldir_wrapper( dir, old_pos, 1 );
 781                         break;
 782                     }
 783                     old_pos = telldir_wrapper( dir, old_pos, 1 );
 784                 }
 785             }
 786             else  /* we'll only return full entries, no need to worry about overflow */
 787             {
 788                 int count = 0;
 789                 while ((de = readdir( dir )))
 790                 {
 791                     count++;
 792                     info = append_entry( buffer, &io->Information, length,
 793                                          de->d_name, NULL, mask );
 794                     if (info)
 795                     {
 796                         last_info = info;
 797                         if (single_entry) break;
 798                         /* check if we still have enough space for the largest possible entry */
 799                         if (io->Information + max_dir_info_size > length) break;
 800                     }
 801                 }
 802                 old_pos = telldir_wrapper( dir, old_pos, count );
 803             }
 804             lseek( fd, old_pos, SEEK_SET );  /* store dir offset as filepos for fd */
 805             closedir( dir );
 806         }
 807
 808         if (last_info) last_info->NextEntryOffset = 0;
 809         else io->u.Status = restart_scan ? STATUS_NO_SUCH_FILE : STATUS_NO_MORE_FILES;
 810
 811     done:
 812         if (fchdir( cwd ) == -1) chdir( "/" );
 813     }
 814     else io->u.Status = FILE_GetNtStatus();
 815
 816     RtlLeaveCriticalSection( &dir_section );
 817
 818     wine_server_release_fd( handle, fd );
 819     if (cwd != -1) close( cwd );
 820     TRACE( "=> %lx (%ld)\n", io->u.Status, io->Information );
 821     return io->u.Status;
 822 }
 823
 824
 825 /***********************************************************************
 826  *           find_file_in_dir
 827  *
 828  * Find a file in a directory the hard way, by doing a case-insensitive search.
 829  * The file found is appended to unix_name at pos.
 830  * There must be at least MAX_DIR_ENTRY_LEN+2 chars available at pos.
 831  */
 832 static NTSTATUS find_file_in_dir( char *unix_name, int pos, const WCHAR *name, int length,
 833                                   int check_case )
 834 {
 835     WCHAR buffer[MAX_DIR_ENTRY_LEN];
 836     UNICODE_STRING str;
 837     BOOLEAN spaces;
 838     DIR *dir;
 839     struct dirent *de;
 840     struct stat st;
 841     int ret, used_default, is_name_8_dot_3;
 842
 843     /* try a shortcut for this directory */
 844
 845     unix_name[pos++] = '/';
 846     ret = ntdll_wcstoumbs( 0, name, length, unix_name + pos, MAX_DIR_ENTRY_LEN,
 847                            NULL, &used_default );
 848     /* if we used the default char, the Unix name won't round trip properly back to Unicode */
 849     /* so it cannot match the file we are looking for */
 850     if (ret >= 0 && !used_default)
 851     {
 852         unix_name[pos + ret] = 0;
 853         if (!stat( unix_name, &st )) return STATUS_SUCCESS;
 854     }
 855     if (check_case) goto not_found;  /* we want an exact match */
 856
 857     if (pos > 1) unix_name[pos - 1] = 0;
 858     else unix_name[1] = 0;  /* keep the initial slash */
 859
 860     /* check if it fits in 8.3 so that we don't look for short names if we won't need them */
 861
 862     str.Buffer = (WCHAR *)name;
 863     str.Length = length * sizeof(WCHAR);
 864     str.MaximumLength = str.Length;
 865     is_name_8_dot_3 = RtlIsNameLegalDOS8Dot3( &str, NULL, &spaces ) && !spaces;
 866
 867     /* now look for it through the directory */
 868
 869 #ifdef VFAT_IOCTL_READDIR_BOTH
 870     if (is_name_8_dot_3)
 871     {
 872         int fd = open( unix_name, O_RDONLY | O_DIRECTORY );
 873         if (fd != -1)
 874         {
 875             KERNEL_DIRENT de[2];
 876
 877             if (ioctl( fd, VFAT_IOCTL_READDIR_BOTH, (long)de ) != -1)
 878             {
 879                 unix_name[pos - 1] = '/';
 880                 for (;;)
 881                 {
 882                     if (!de[0].d_reclen) break;
 883
 884                     if (de[1].d_name[0])
 885                     {
 886                         ret = ntdll_umbstowcs( 0, de[1].d_name, strlen(de[1].d_name),
 887                                                buffer, MAX_DIR_ENTRY_LEN );
 888                         if (ret == length && !memicmpW( buffer, name, length))
 889                         {
 890                             strcpy( unix_name + pos, de[1].d_name );
 891                             close( fd );
 892                             return STATUS_SUCCESS;
 893                         }
 894                     }
 895                     ret = ntdll_umbstowcs( 0, de[0].d_name, strlen(de[0].d_name),
 896                                            buffer, MAX_DIR_ENTRY_LEN );
 897                     if (ret == length && !memicmpW( buffer, name, length))
 898                     {
 899                         strcpy( unix_name + pos,
 900                                 de[1].d_name[0] ? de[1].d_name : de[0].d_name );
 901                         close( fd );
 902                         return STATUS_SUCCESS;
 903                     }
 904                     if (ioctl( fd, VFAT_IOCTL_READDIR_BOTH, (long)de ) == -1)
 905                     {
 906                         close( fd );
 907                         goto not_found;
 908                     }
 909                 }
 910             }
 911             close( fd );
 912         }
 913         /* fall through to normal handling */
 914     }
 915 #endif /* VFAT_IOCTL_READDIR_BOTH */
 916
 917     if (!(dir = opendir( unix_name )))
 918     {
 919         if (errno == ENOENT) return STATUS_OBJECT_PATH_NOT_FOUND;
 920         else return FILE_GetNtStatus();
 921     }
 922     unix_name[pos - 1] = '/';
 923     str.Buffer = buffer;
 924     str.MaximumLength = sizeof(buffer);
 925     while ((de = readdir( dir )))
 926     {
 927         ret = ntdll_umbstowcs( 0, de->d_name, strlen(de->d_name), buffer, MAX_DIR_ENTRY_LEN );
 928         if (ret == length && !memicmpW( buffer, name, length ))
 929         {
 930             strcpy( unix_name + pos, de->d_name );
 931             closedir( dir );
 932             return STATUS_SUCCESS;
 933         }
 934
 935         if (!is_name_8_dot_3) continue;
 936
 937         str.Length = ret * sizeof(WCHAR);
 938         if (!RtlIsNameLegalDOS8Dot3( &str, NULL, &spaces ) || spaces)
 939         {
 940             WCHAR short_nameW[12];
 941             ret = hash_short_file_name( &str, short_nameW );
 942             if (ret == length && !memicmpW( short_nameW, name, length ))
 943             {
 944                 strcpy( unix_name + pos, de->d_name );
 945                 closedir( dir );
 946                 return STATUS_SUCCESS;
 947             }
 948         }
 949     }
 950     closedir( dir );
 951     goto not_found;  /* avoid warning */
 952
 953 not_found:
 954     unix_name[pos - 1] = 0;
 955     return STATUS_OBJECT_PATH_NOT_FOUND;
 956 }
 957
 958
 959 /******************************************************************************
 960  *           get_dos_device
 961  *
 962  * Get the Unix path of a DOS device.
 963  */
 964 static NTSTATUS get_dos_device( const WCHAR *name, UINT name_len, ANSI_STRING *unix_name_ret )
 965 {
 966     const char *config_dir = wine_get_config_dir();
 967     struct stat st;
 968     char *unix_name, *new_name, *dev;
 969     int i, unix_len;
 970
 971     /* make sure the device name is ASCII */
 972     for (i = 0; i < name_len; i++)
 973         if (name[i] <= 32 || name[i] >= 127) return STATUS_OBJECT_NAME_NOT_FOUND;
 974
 975     unix_len = strlen(config_dir) + sizeof("/dosdevices/") + name_len + 1;
 976
 977     if (!(unix_name = RtlAllocateHeap( GetProcessHeap(), 0, unix_len )))
 978         return STATUS_NO_MEMORY;
 979
 980     strcpy( unix_name, config_dir );
 981     strcat( unix_name, "/dosdevices/" );
 982     dev = unix_name + strlen(unix_name);
 983
 984     for (i = 0; i < name_len; i++) dev[i] = (char)tolowerW(name[i]);
 985     dev[i] = 0;
 986
 987     /* special case for drive devices */
 988     if (name_len == 2 && dev[1] == ':')
 989     {
 990         dev[i++] = ':';
 991         dev[i] = 0;
 992     }
 993
 994     for (;;)
 995     {
 996         if (!stat( unix_name, &st ))
 997         {
 998             TRACE( "%s -> %s\n", debugstr_wn(name,name_len), debugstr_a(unix_name) );
 999             unix_name_ret->Buffer = unix_name;
1000             unix_name_ret->Length = strlen(unix_name);
1001             unix_name_ret->MaximumLength = unix_len;
1002             return STATUS_SUCCESS;
1003         }
1004         if (!dev) break;
1005
1006         /* now try some defaults for it */
1007         if (!strcmp( dev, "aux" ))
1008         {
1009             strcpy( dev, "com1" );
1010             continue;
1011         }
1012         if (!strcmp( dev, "prn" ))
1013         {
1014             strcpy( dev, "lpt1" );
1015             continue;
1016         }
1017         if (!strcmp( dev, "nul" ))
1018         {
1019             strcpy( unix_name, "/dev/null" );
1020             dev = NULL; /* last try */
1021             continue;
1022         }
1023
1024         new_name = NULL;
1025         if (dev[1] == ':' && dev[2] == ':')  /* drive device */
1026         {
1027             dev[2] = 0;  /* remove last ':' to get the drive mount point symlink */
1028             new_name = get_default_drive_device( unix_name );
1029         }
1030         else if (!strncmp( dev, "com", 3 )) new_name = get_default_com_device( dev[3] - '0' );
1031         else if (!strncmp( dev, "lpt", 3 )) new_name = get_default_lpt_device( dev[3] - '0' );
1032
1033         if (!new_name) break;
1034
1035         RtlFreeHeap( GetProcessHeap(), 0, unix_name );
1036         unix_name = new_name;
1037         unix_len = strlen(unix_name) + 1;
1038         dev = NULL; /* last try */
1039     }
1040     RtlFreeHeap( GetProcessHeap(), 0, unix_name );
1041     return STATUS_OBJECT_NAME_NOT_FOUND;
1042 }
1043
1044
1045 /* return the length of the DOS namespace prefix if any */
1046 static inline int get_dos_prefix_len( const UNICODE_STRING *name )
1047 {
1048     static const WCHAR nt_prefixW[] = {'\\','?','?','\\'};
1049     static const WCHAR dosdev_prefixW[] = {'\\','D','o','s','D','e','v','i','c','e','s','\\'};
1050
1051     if (name->Length > sizeof(nt_prefixW) &&
1052         !memcmp( name->Buffer, nt_prefixW, sizeof(nt_prefixW) ))
1053         return sizeof(nt_prefixW) / sizeof(WCHAR);
1054
1055     if (name->Length > sizeof(dosdev_prefixW) &&
1056         !memicmpW( name->Buffer, dosdev_prefixW, sizeof(dosdev_prefixW)/sizeof(WCHAR) ))
1057         return sizeof(dosdev_prefixW) / sizeof(WCHAR);
1058
1059     return 0;
1060 }
1061
1062
1063 /******************************************************************************
1064  *           wine_nt_to_unix_file_name  (NTDLL.@) Not a Windows API
1065  *
1066  * Convert a file name from NT namespace to Unix namespace.
1067  *
1068  * If disposition is not FILE_OPEN or FILE_OVERWRITTE, the last path
1069  * element doesn't have to exist; in that case STATUS_NO_SUCH_FILE is
1070  * returned, but the unix name is still filled in properly.
1071  */
1072 NTSTATUS wine_nt_to_unix_file_name( const UNICODE_STRING *nameW, ANSI_STRING *unix_name_ret,
1073                                     UINT disposition, BOOLEAN check_case )
1074 {
1075     static const WCHAR uncW[] = {'U','N','C','\\'};
1076     static const WCHAR invalid_charsW[] = { INVALID_NT_CHARS, 0 };
1077
1078     NTSTATUS status = STATUS_SUCCESS;
1079     const char *config_dir = wine_get_config_dir();
1080     const WCHAR *name, *p;
1081     struct stat st;
1082     char *unix_name;
1083     int pos, ret, name_len, unix_len, used_default;
1084
1085     name     = nameW->Buffer;
1086     name_len = nameW->Length / sizeof(WCHAR);
1087
1088     if (!name_len || !IS_SEPARATOR(name[0])) return STATUS_OBJECT_PATH_SYNTAX_BAD;
1089
1090     if ((pos = get_dos_prefix_len( nameW )))
1091     {
1092         BOOLEAN is_unc = FALSE;
1093
1094         name += pos;
1095         name_len -= pos;
1096
1097         /* check for UNC prefix */
1098         if (name_len > 4 && !memicmpW( name, uncW, 4 ))
1099         {
1100             name += 3;
1101             name_len -= 3;
1102             is_unc = TRUE;
1103         }
1104         else
1105         {
1106             /* check for a drive letter with path */
1107             if (name_len < 3 || !isalphaW(name[0]) || name[1] != ':' || !IS_SEPARATOR(name[2]))
1108             {
1109                 /* not a drive with path, try other DOS devices */
1110                 return get_dos_device( name, name_len, unix_name_ret );
1111             }
1112             name += 2;  /* skip drive letter */
1113             name_len -= 2;
1114         }
1115
1116         /* check for invalid characters */
1117         for (p = name; p < name + name_len; p++)
1118             if (*p < 32 || strchrW( invalid_charsW, *p )) return STATUS_OBJECT_NAME_INVALID;
1119
1120         unix_len = ntdll_wcstoumbs( 0, name, name_len, NULL, 0, NULL, NULL );
1121         unix_len += MAX_DIR_ENTRY_LEN + 3;
1122         unix_len += strlen(config_dir) + sizeof("/dosdevices/") + 3;
1123         if (!(unix_name = RtlAllocateHeap( GetProcessHeap(), 0, unix_len )))
1124             return STATUS_NO_MEMORY;
1125         strcpy( unix_name, config_dir );
1126         strcat( unix_name, "/dosdevices/" );
1127         pos = strlen(unix_name);
1128         if (is_unc)
1129         {
1130             strcpy( unix_name + pos, "unc" );
1131             pos += 3;
1132         }
1133         else
1134         {
1135             unix_name[pos++] = tolowerW( name[-2] );
1136             unix_name[pos++] = ':';
1137             unix_name[pos] = 0;
1138         }
1139     }
1140     else  /* no DOS prefix, assume NT native name, map directly to Unix */
1141     {
1142         if (!name_len || !IS_SEPARATOR(name[0])) return STATUS_OBJECT_NAME_INVALID;
1143         unix_len = ntdll_wcstoumbs( 0, name, name_len, NULL, 0, NULL, NULL );
1144         unix_len += MAX_DIR_ENTRY_LEN + 3;
1145         if (!(unix_name = RtlAllocateHeap( GetProcessHeap(), 0, unix_len )))
1146             return STATUS_NO_MEMORY;
1147         pos = 0;
1148     }
1149
1150     /* try a shortcut first */
1151
1152     ret = ntdll_wcstoumbs( 0, name, name_len, unix_name + pos, unix_len - pos - 1,
1153                            NULL, &used_default );
1154
1155     while (name_len && IS_SEPARATOR(*name))
1156     {
1157         name++;
1158         name_len--;
1159     }
1160
1161     if (ret > 0 && !used_default)  /* if we used the default char the name didn't convert properly */
1162     {
1163         char *p;
1164         unix_name[pos + ret] = 0;
1165         for (p = unix_name + pos ; *p; p++) if (*p == '\\') *p = '/';
1166         if (!stat( unix_name, &st ))
1167         {
1168             /* creation fails with STATUS_ACCESS_DENIED for the root of the drive */
1169             if (disposition == FILE_CREATE)
1170                 return name_len ? STATUS_OBJECT_NAME_COLLISION : STATUS_ACCESS_DENIED;
1171             goto done;
1172         }
1173     }
1174
1175     if (!name_len)  /* empty name -> drive root doesn't exist */
1176     {
1177         RtlFreeHeap( GetProcessHeap(), 0, unix_name );
1178         return STATUS_OBJECT_PATH_NOT_FOUND;
1179     }
1180     if (check_case && (disposition == FILE_OPEN || disposition == FILE_OVERWRITE))
1181     {
1182         RtlFreeHeap( GetProcessHeap(), 0, unix_name );
1183         return STATUS_OBJECT_NAME_NOT_FOUND;
1184     }
1185
1186     /* now do it component by component */
1187
1188     while (name_len)
1189     {
1190         const WCHAR *end, *next;
1191
1192         end = name;
1193         while (end < name + name_len && !IS_SEPARATOR(*end)) end++;
1194         next = end;
1195         while (next < name + name_len && IS_SEPARATOR(*next)) next++;
1196         name_len -= next - name;
1197
1198         /* grow the buffer if needed */
1199
1200         if (unix_len - pos < MAX_DIR_ENTRY_LEN + 2)
1201         {
1202             char *new_name;
1203             unix_len += 2 * MAX_DIR_ENTRY_LEN;
1204             if (!(new_name = RtlReAllocateHeap( GetProcessHeap(), 0, unix_name, unix_len )))
1205             {
1206                 RtlFreeHeap( GetProcessHeap(), 0, unix_name );
1207                 return STATUS_NO_MEMORY;
1208             }
1209             unix_name = new_name;
1210         }
1211
1212         status = find_file_in_dir( unix_name, pos, name, end - name, check_case );
1213
1214         /* if this is the last element, not finding it is not necessarily fatal */
1215         if (!name_len)
1216         {
1217             if (status == STATUS_OBJECT_PATH_NOT_FOUND)
1218             {
1219                 status = STATUS_OBJECT_NAME_NOT_FOUND;
1220                 if (disposition != FILE_OPEN && disposition != FILE_OVERWRITE)
1221                 {
1222                     ret = ntdll_wcstoumbs( 0, name, end - name, unix_name + pos + 1,
1223                                            MAX_DIR_ENTRY_LEN, NULL, &used_default );
1224                     if (ret > 0 && !used_default)
1225                     {
1226                         unix_name[pos] = '/';
1227                         unix_name[pos + 1 + ret] = 0;
1228                         status = STATUS_NO_SUCH_FILE;
1229                         break;
1230                     }
1231                 }
1232             }
1233             else if (status == STATUS_SUCCESS && disposition == FILE_CREATE)
1234             {
1235                 status = STATUS_OBJECT_NAME_COLLISION;
1236             }
1237         }
1238
1239         if (status != STATUS_SUCCESS)
1240         {
1241             /* couldn't find it at all, fail */
1242             WARN( "%s not found in %s\n", debugstr_w(name), unix_name );
1243             RtlFreeHeap( GetProcessHeap(), 0, unix_name );
1244             return status;
1245         }
1246
1247         pos += strlen( unix_name + pos );
1248         name = next;
1249     }
1250
1251     WARN( "%s -> %s required a case-insensitive search\n",
1252           debugstr_us(nameW), debugstr_a(unix_name) );
1253
1254 done:
1255     TRACE( "%s -> %s\n", debugstr_us(nameW), debugstr_a(unix_name) );
1256     unix_name_ret->Buffer = unix_name;
1257     unix_name_ret->Length = strlen(unix_name);
1258     unix_name_ret->MaximumLength = unix_len;
1259     return status;
1260 }
1261
1262
1263 /******************************************************************
1264  *              RtlDoesFileExists_U   (NTDLL.@)
1265  */
1266 BOOLEAN WINAPI RtlDoesFileExists_U(LPCWSTR file_name)
1267 {
1268     UNICODE_STRING nt_name;
1269     ANSI_STRING unix_name;
1270     BOOLEAN ret;
1271
1272     if (!RtlDosPathNameToNtPathName_U( file_name, &nt_name, NULL, NULL )) return FALSE;
1273     ret = (wine_nt_to_unix_file_name( &nt_name, &unix_name, FILE_OPEN, FALSE ) == STATUS_SUCCESS);
1274     if (ret) RtlFreeAnsiString( &unix_name );
1275     RtlFreeUnicodeString( &nt_name );
1276     return ret;
1277 }