files/dos_fs.c

   1 /*
   2  * DOS file system functions
   3  *
   4  * Copyright 1993 Erik Bos
   5  * Copyright 1996 Alexandre Julliard
   6  */
   7
   8 #include "config.h"
   9 #include <sys/types.h>
  10 #include <ctype.h>
  11 #include <dirent.h>
  12 #include <errno.h>
  13 #ifdef HAVE_SYS_ERRNO_H
  14 #include <sys/errno.h>
  15 #endif
  16 #include <fcntl.h>
  17 #include <string.h>
  18 #include <stdlib.h>
  19 #include <sys/stat.h>
  20 #include <sys/ioctl.h>
  21 #include <time.h>
  22 #include <unistd.h>
  23
  24 #include "windef.h"
  25 #include "wingdi.h"
  26 #include "winuser.h"
  27 #include "wine/winbase16.h"
  28 #include "winerror.h"
  29 #include "drive.h"
  30 #include "file.h"
  31 #include "heap.h"
  32 #include "msdos.h"
  33 #include "syslevel.h"
  34 #include "server.h"
  35 #include "process.h"
  36 #include "options.h"
  37 #include "debugtools.h"
  38
  39 DEFAULT_DEBUG_CHANNEL(dosfs)
  40 DECLARE_DEBUG_CHANNEL(file)
  41
  42 /* Define the VFAT ioctl to get both short and long file names */
  43 /* FIXME: is it possible to get this to work on other systems? */
  44 #ifdef linux
  45 /* We want the real kernel dirent structure, not the libc one */
  46 typedef struct
  47 {
  48     long d_ino;
  49     long d_off;
  50     unsigned short d_reclen;
  51     char d_name[256];
  52 } KERNEL_DIRENT;
  53
  54 #define VFAT_IOCTL_READDIR_BOTH  _IOR('r', 1, KERNEL_DIRENT [2] )
  55
  56 #else   /* linux */
  57 #undef VFAT_IOCTL_READDIR_BOTH  /* just in case... */
  58 #endif  /* linux */
  59
  60 /* Chars we don't want to see in DOS file names */
  61 #define INVALID_DOS_CHARS  "*?<>|\"+=,;[] \345"
  62
  63 static const DOS_DEVICE DOSFS_Devices[] =
  64 /* name, device flags (see Int 21/AX=0x4400) */
  65 {
  66     { "CON",            0xc0d3 },
  67     { "PRN",            0xa0c0 },
  68     { "NUL",            0x80c4 },
  69     { "AUX",            0x80c0 },
  70     { "LPT1",           0xa0c0 },
  71     { "LPT2",           0xa0c0 },
  72     { "LPT3",           0xa0c0 },
  73     { "LPT4",           0xc0d3 },
  74     { "COM1",           0x80c0 },
  75     { "COM2",           0x80c0 },
  76     { "COM3",           0x80c0 },
  77     { "COM4",           0x80c0 },
  78     { "SCSIMGR$",       0xc0c0 },
  79     { "HPSCAN",         0xc0c0 }
  80 };
  81
  82 #define GET_DRIVE(path) \
  83     (((path)[1] == ':') ? toupper((path)[0]) - 'A' : DOSFS_CurDrive)
  84
  85 /* Directory info for DOSFS_ReadDir */
  86 typedef struct
  87 {
  88     DIR           *dir;
  89 #ifdef VFAT_IOCTL_READDIR_BOTH
  90     int            fd;
  91     char           short_name[12];
  92     KERNEL_DIRENT  dirent[2];
  93 #endif
  94 } DOS_DIR;
  95
  96 /* Info structure for FindFirstFile handle */
  97 typedef struct
  98 {
  99     LPSTR path;
 100     LPSTR long_mask;
 101     LPSTR short_mask;
 102     BYTE  attr;
 103     int   drive;
 104     int   cur_pos;
 105     DOS_DIR *dir;
 106 } FIND_FIRST_INFO;
 107
 108
 109
 110 /***********************************************************************
 111  *           DOSFS_ValidDOSName
 112  *
 113  * Return 1 if Unix file 'name' is also a valid MS-DOS name
 114  * (i.e. contains only valid DOS chars, lower-case only, fits in 8.3 format).
 115  * File name can be terminated by '\0', '\\' or '/'.
 116  */
 117 static int DOSFS_ValidDOSName( const char *name, int ignore_case )
 118 {
 119     static const char invalid_chars[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ" INVALID_DOS_CHARS;
 120     const char *p = name;
 121     const char *invalid = ignore_case ? (invalid_chars + 26) : invalid_chars;
 122     int len = 0;
 123
 124     if (*p == '.')
 125     {
 126         /* Check for "." and ".." */
 127         p++;
 128         if (*p == '.') p++;
 129         /* All other names beginning with '.' are invalid */
 130         return (IS_END_OF_NAME(*p));
 131     }
 132     while (!IS_END_OF_NAME(*p))
 133     {
 134         if (strchr( invalid, *p )) return 0;  /* Invalid char */
 135         if (*p == '.') break;  /* Start of the extension */
 136         if (++len > 8) return 0;  /* Name too long */
 137         p++;
 138     }
 139     if (*p != '.') return 1;  /* End of name */
 140     p++;
 141     if (IS_END_OF_NAME(*p)) return 0;  /* Empty extension not allowed */
 142     len = 0;
 143     while (!IS_END_OF_NAME(*p))
 144     {
 145         if (strchr( invalid, *p )) return 0;  /* Invalid char */
 146         if (*p == '.') return 0;  /* Second extension not allowed */
 147         if (++len > 3) return 0;  /* Extension too long */
 148         p++;
 149     }
 150     return 1;
 151 }
 152
 153
 154 /***********************************************************************
 155  *           DOSFS_ToDosFCBFormat
 156  *
 157  * Convert a file name to DOS FCB format (8+3 chars, padded with blanks),
 158  * expanding wild cards and converting to upper-case in the process.
 159  * File name can be terminated by '\0', '\\' or '/'.
 160  * Return FALSE if the name is not a valid DOS name.
 161  * 'buffer' must be at least 12 characters long.
 162  */
 163 BOOL DOSFS_ToDosFCBFormat( LPCSTR name, LPSTR buffer )
 164 {
 165     static const char invalid_chars[] = INVALID_DOS_CHARS;
 166     const char *p = name;
 167     int i;
 168
 169     /* Check for "." and ".." */
 170     if (*p == '.')
 171     {
 172         p++;
 173         strcpy( buffer, ".          " );
 174         if (*p == '.')
 175         {
 176             buffer[1] = '.';
 177             p++;
 178         }
 179         return (!*p || (*p == '/') || (*p == '\\'));
 180     }
 181
 182     for (i = 0; i < 8; i++)
 183     {
 184         switch(*p)
 185         {
 186         case '\0':
 187         case '\\':
 188         case '/':
 189         case '.':
 190             buffer[i] = ' ';
 191             break;
 192         case '?':
 193             p++;
 194             /* fall through */
 195         case '*':
 196             buffer[i] = '?';
 197             break;
 198         default:
 199             if (strchr( invalid_chars, *p )) return FALSE;
 200             buffer[i] = toupper(*p);
 201             p++;
 202             break;
 203         }
 204     }
 205
 206     if (*p == '*')
 207     {
 208         /* Skip all chars after wildcard up to first dot */
 209         while (*p && (*p != '/') && (*p != '\\') && (*p != '.')) p++;
 210     }
 211     else
 212     {
 213         /* Check if name too long */
 214         if (*p && (*p != '/') && (*p != '\\') && (*p != '.')) return FALSE;
 215     }
 216     if (*p == '.') p++;  /* Skip dot */
 217
 218     for (i = 8; i < 11; i++)
 219     {
 220         switch(*p)
 221         {
 222         case '\0':
 223         case '\\':
 224         case '/':
 225             buffer[i] = ' ';
 226             break;
 227         case '.':
 228             return FALSE;  /* Second extension not allowed */
 229         case '?':
 230             p++;
 231             /* fall through */
 232         case '*':
 233             buffer[i] = '?';
 234             break;
 235         default:
 236             if (strchr( invalid_chars, *p )) return FALSE;
 237             buffer[i] = toupper(*p);
 238             p++;
 239             break;
 240         }
 241     }
 242     buffer[11] = '\0';
 243
 244     /* at most 3 character of the extension are processed
 245      * is something behind this ?
 246      */
 247     while (*p == '*' || *p == ' ') p++; /* skip wildcards and spaces */
 248     return IS_END_OF_NAME(*p);
 249 }
 250
 251
 252 /***********************************************************************
 253  *           DOSFS_ToDosDTAFormat
 254  *
 255  * Convert a file name from FCB to DTA format (name.ext, null-terminated)
 256  * converting to upper-case in the process.
 257  * File name can be terminated by '\0', '\\' or '/'.
 258  * 'buffer' must be at least 13 characters long.
 259  */
 260 static void DOSFS_ToDosDTAFormat( LPCSTR name, LPSTR buffer )
 261 {
 262     char *p;
 263
 264     memcpy( buffer, name, 8 );
 265     for (p = buffer + 8; (p > buffer) && (p[-1] == ' '); p--);
 266     *p++ = '.';
 267     memcpy( p, name + 8, 3 );
 268     for (p += 3; p[-1] == ' '; p--);
 269     if (p[-1] == '.') p--;
 270     *p = '\0';
 271 }
 272
 273
 274 /***********************************************************************
 275  *           DOSFS_MatchShort
 276  *
 277  * Check a DOS file name against a mask (both in FCB format).
 278  */
 279 static int DOSFS_MatchShort( const char *mask, const char *name )
 280 {
 281     int i;
 282     for (i = 11; i > 0; i--, mask++, name++)
 283         if ((*mask != '?') && (*mask != *name)) return 0;
 284     return 1;
 285 }
 286
 287
 288 /***********************************************************************
 289  *           DOSFS_MatchLong
 290  *
 291  * Check a long file name against a mask.
 292  */
 293 static int DOSFS_MatchLong( const char *mask, const char *name,
 294                             int case_sensitive )
 295 {
 296     if (!strcmp( mask, "*.*" )) return 1;
 297     while (*name && *mask)
 298     {
 299         if (*mask == '*')
 300         {
 301             mask++;
 302             while (*mask == '*') mask++;  /* Skip consecutive '*' */
 303             if (!*mask) return 1;
 304             if (case_sensitive) while (*name && (*name != *mask)) name++;
 305             else while (*name && (toupper(*name) != toupper(*mask))) name++;
 306             if (!*name) break;
 307         }
 308         else if (*mask != '?')
 309         {
 310             if (case_sensitive)
 311             {
 312                 if (*mask != *name) return 0;
 313             }
 314             else if (toupper(*mask) != toupper(*name)) return 0;
 315         }
 316         mask++;
 317         name++;
 318     }
 319     if (*mask == '.') mask++;  /* Ignore trailing '.' in mask */
 320     return (!*name && !*mask);
 321 }
 322
 323
 324 /***********************************************************************
 325  *           DOSFS_OpenDir
 326  */
 327 static DOS_DIR *DOSFS_OpenDir( LPCSTR path )
 328 {
 329     DOS_DIR *dir = HeapAlloc( GetProcessHeap(), 0, sizeof(*dir) );
 330     if (!dir)
 331     {
 332         SetLastError( ERROR_NOT_ENOUGH_MEMORY );
 333         return NULL;
 334     }
 335
 336     /* Treat empty path as root directory. This simplifies path split into
 337        directory and mask in several other places */
 338     if (!*path) path = "/";
 339
 340 #ifdef VFAT_IOCTL_READDIR_BOTH
 341
 342     /* Check if the VFAT ioctl is supported on this directory */
 343
 344     if ((dir->fd = open( path, O_RDONLY )) != -1)
 345     {
 346         if (ioctl( dir->fd, VFAT_IOCTL_READDIR_BOTH, (long)dir->dirent ) == -1)
 347         {
 348             close( dir->fd );
 349             dir->fd = -1;
 350         }
 351         else
 352         {
 353             /* Set the file pointer back at the start of the directory */
 354             lseek( dir->fd, 0, SEEK_SET );
 355             dir->dir = NULL;
 356             return dir;
 357         }
 358     }
 359 #endif  /* VFAT_IOCTL_READDIR_BOTH */
 360
 361     /* Now use the standard opendir/readdir interface */
 362
 363     if (!(dir->dir = opendir( path )))
 364     {
 365         HeapFree( GetProcessHeap(), 0, dir );
 366         return NULL;
 367     }
 368     return dir;
 369 }
 370
 371
 372 /***********************************************************************
 373  *           DOSFS_CloseDir
 374  */
 375 static void DOSFS_CloseDir( DOS_DIR *dir )
 376 {
 377 #ifdef VFAT_IOCTL_READDIR_BOTH
 378     if (dir->fd != -1) close( dir->fd );
 379 #endif  /* VFAT_IOCTL_READDIR_BOTH */
 380     if (dir->dir) closedir( dir->dir );
 381     HeapFree( GetProcessHeap(), 0, dir );
 382 }
 383
 384
 385 /***********************************************************************
 386  *           DOSFS_ReadDir
 387  */
 388 static BOOL DOSFS_ReadDir( DOS_DIR *dir, LPCSTR *long_name,
 389                              LPCSTR *short_name )
 390 {
 391     struct dirent *dirent;
 392
 393 #ifdef VFAT_IOCTL_READDIR_BOTH
 394     if (dir->fd != -1)
 395     {
 396         if (ioctl( dir->fd, VFAT_IOCTL_READDIR_BOTH, (long)dir->dirent ) != -1) {
 397             if (!dir->dirent[0].d_reclen) return FALSE;
 398             if (!DOSFS_ToDosFCBFormat( dir->dirent[0].d_name, dir->short_name ))
 399                 dir->short_name[0] = '\0';
 400             *short_name = dir->short_name;
 401             if (dir->dirent[1].d_name[0]) *long_name = dir->dirent[1].d_name;
 402             else *long_name = dir->dirent[0].d_name;
 403             return TRUE;
 404         }
 405     }
 406 #endif  /* VFAT_IOCTL_READDIR_BOTH */
 407
 408     if (!(dirent = readdir( dir->dir ))) return FALSE;
 409     *long_name  = dirent->d_name;
 410     *short_name = NULL;
 411     return TRUE;
 412 }
 413
 414
 415 /***********************************************************************
 416  *           DOSFS_Hash
 417  *
 418  * Transform a Unix file name into a hashed DOS name. If the name is a valid
 419  * DOS name, it is converted to upper-case; otherwise it is replaced by a
 420  * hashed version that fits in 8.3 format.
 421  * File name can be terminated by '\0', '\\' or '/'.
 422  * 'buffer' must be at least 13 characters long.
 423  */
 424 static void DOSFS_Hash( LPCSTR name, LPSTR buffer, BOOL dir_format,
 425                         BOOL ignore_case )
 426 {
 427     static const char invalid_chars[] = INVALID_DOS_CHARS "~.";
 428     static const char hash_chars[32] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ012345";
 429
 430     const char *p, *ext;
 431     char *dst;
 432     unsigned short hash;
 433     int i;
 434
 435     if (dir_format) strcpy( buffer, "           " );
 436
 437     if (DOSFS_ValidDOSName( name, ignore_case ))
 438     {
 439         /* Check for '.' and '..' */
 440         if (*name == '.')
 441         {
 442             buffer[0] = '.';
 443             if (!dir_format) buffer[1] = buffer[2] = '\0';
 444             if (name[1] == '.') buffer[1] = '.';
 445             return;
 446         }
 447
 448         /* Simply copy the name, converting to uppercase */
 449
 450         for (dst = buffer; !IS_END_OF_NAME(*name) && (*name != '.'); name++)
 451             *dst++ = toupper(*name);
 452         if (*name == '.')
 453         {
 454             if (dir_format) dst = buffer + 8;
 455             else *dst++ = '.';
 456             for (name++; !IS_END_OF_NAME(*name); name++)
 457                 *dst++ = toupper(*name);
 458         }
 459         if (!dir_format) *dst = '\0';
 460         return;
 461     }
 462
 463     /* Compute the hash code of the file name */
 464     /* If you know something about hash functions, feel free to */
 465     /* insert a better algorithm here... */
 466     if (ignore_case)
 467     {
 468         for (p = name, hash = 0xbeef; !IS_END_OF_NAME(p[1]); p++)
 469             hash = (hash<<3) ^ (hash>>5) ^ tolower(*p) ^ (tolower(p[1]) << 8);
 470         hash = (hash<<3) ^ (hash>>5) ^ tolower(*p); /* Last character*/
 471     }
 472     else
 473     {
 474         for (p = name, hash = 0xbeef; !IS_END_OF_NAME(p[1]); p++)
 475             hash = (hash << 3) ^ (hash >> 5) ^ *p ^ (p[1] << 8);
 476         hash = (hash << 3) ^ (hash >> 5) ^ *p;  /* Last character */
 477     }
 478
 479     /* Find last dot for start of the extension */
 480     for (p = name+1, ext = NULL; !IS_END_OF_NAME(*p); p++)
 481         if (*p == '.') ext = p;
 482     if (ext && IS_END_OF_NAME(ext[1]))
 483         ext = NULL;  /* Empty extension ignored */
 484
 485     /* Copy first 4 chars, replacing invalid chars with '_' */
 486     for (i = 4, p = name, dst = buffer; i > 0; i--, p++)
 487     {
 488         if (IS_END_OF_NAME(*p) || (p == ext)) break;
 489         *dst++ = strchr( invalid_chars, *p ) ? '_' : toupper(*p);
 490     }
 491     /* Pad to 5 chars with '~' */
 492     while (i-- >= 0) *dst++ = '~';
 493
 494     /* Insert hash code converted to 3 ASCII chars */
 495     *dst++ = hash_chars[(hash >> 10) & 0x1f];
 496     *dst++ = hash_chars[(hash >> 5) & 0x1f];
 497     *dst++ = hash_chars[hash & 0x1f];
 498
 499     /* Copy the first 3 chars of the extension (if any) */
 500     if (ext)
 501     {
 502         if (!dir_format) *dst++ = '.';
 503         for (i = 3, ext++; (i > 0) && !IS_END_OF_NAME(*ext); i--, ext++)
 504             *dst++ = strchr( invalid_chars, *ext ) ? '_' : toupper(*ext);
 505     }
 506     if (!dir_format) *dst = '\0';
 507 }
 508
 509
 510 /***********************************************************************
 511  *           DOSFS_FindUnixName
 512  *
 513  * Find the Unix file name in a given directory that corresponds to
 514  * a file name (either in Unix or DOS format).
 515  * File name can be terminated by '\0', '\\' or '/'.
 516  * Return TRUE if OK, FALSE if no file name matches.
 517  *
 518  * 'long_buf' must be at least 'long_len' characters long. If the long name
 519  * turns out to be larger than that, the function returns FALSE.
 520  * 'short_buf' must be at least 13 characters long.
 521  */
 522 BOOL DOSFS_FindUnixName( LPCSTR path, LPCSTR name, LPSTR long_buf,
 523                            INT long_len, LPSTR short_buf, BOOL ignore_case)
 524 {
 525     DOS_DIR *dir;
 526     LPCSTR long_name, short_name;
 527     char dos_name[12], tmp_buf[13];
 528     BOOL ret;
 529
 530     const char *p = strchr( name, '/' );
 531     int len = p ? (int)(p - name) : strlen(name);
 532     if ((p = strchr( name, '\\' ))) len = min( (int)(p - name), len );
 533     /* Ignore trailing dots */
 534     while (len > 1 && name[len-1] == '.') len--;
 535     if (long_len < len + 1) return FALSE;
 536
 537     TRACE("%s,%s\n", path, name );
 538
 539     if (!DOSFS_ToDosFCBFormat( name, dos_name )) dos_name[0] = '\0';
 540
 541     if (!(dir = DOSFS_OpenDir( path )))
 542     {
 543         WARN("(%s,%s): can't open dir: %s\n",
 544                        path, name, strerror(errno) );
 545         return FALSE;
 546     }
 547
 548     while ((ret = DOSFS_ReadDir( dir, &long_name, &short_name )))
 549     {
 550         /* Check against Unix name */
 551         if (len == strlen(long_name))
 552         {
 553             if (!ignore_case)
 554             {
 555                 if (!strncmp( long_name, name, len )) break;
 556             }
 557             else
 558             {
 559                 if (!lstrncmpiA( long_name, name, len )) break;
 560             }
 561         }
 562         if (dos_name[0])
 563         {
 564             /* Check against hashed DOS name */
 565             if (!short_name)
 566             {
 567                 DOSFS_Hash( long_name, tmp_buf, TRUE, ignore_case );
 568                 short_name = tmp_buf;
 569             }
 570             if (!strcmp( dos_name, short_name )) break;
 571         }
 572     }
 573     if (ret)
 574     {
 575         if (long_buf) strcpy( long_buf, long_name );
 576         if (short_buf)
 577         {
 578             if (short_name)
 579                 DOSFS_ToDosDTAFormat( short_name, short_buf );
 580             else
 581                 DOSFS_Hash( long_name, short_buf, FALSE, ignore_case );
 582         }
 583         TRACE("(%s,%s) -> %s (%s)\n",
 584               path, name, long_name, short_buf ? short_buf : "***");
 585     }
 586     else
 587         WARN("'%s' not found in '%s'\n", name, path);
 588     DOSFS_CloseDir( dir );
 589     return ret;
 590 }
 591
 592
 593 /***********************************************************************
 594  *           DOSFS_GetDevice
 595  *
 596  * Check if a DOS file name represents a DOS device and return the device.
 597  */
 598 const DOS_DEVICE *DOSFS_GetDevice( const char *name )
 599 {
 600     int i;
 601     const char *p;
 602
 603     if (!name) return NULL; /* if FILE_DupUnixHandle was used */
 604     if (name[0] && (name[1] == ':')) name += 2;
 605     if ((p = strrchr( name, '/' ))) name = p + 1;
 606     if ((p = strrchr( name, '\\' ))) name = p + 1;
 607     for (i = 0; i < sizeof(DOSFS_Devices)/sizeof(DOSFS_Devices[0]); i++)
 608     {
 609         const char *dev = DOSFS_Devices[i].name;
 610         if (!lstrncmpiA( dev, name, strlen(dev) ))
 611         {
 612             p = name + strlen( dev );
 613             if (!*p || (*p == '.')) return &DOSFS_Devices[i];
 614         }
 615     }
 616     return NULL;
 617 }
 618
 619
 620 /***********************************************************************
 621  *           DOSFS_GetDeviceByHandle
 622  */
 623 const DOS_DEVICE *DOSFS_GetDeviceByHandle( HFILE hFile )
 624 {
 625     struct get_file_info_request *req = get_req_buffer();
 626
 627     req->handle = hFile;
 628     if (!server_call( REQ_GET_FILE_INFO ) && (req->type == FILE_TYPE_UNKNOWN))
 629     {
 630         if ((req->attr >= 0) &&
 631             (req->attr < sizeof(DOSFS_Devices)/sizeof(DOSFS_Devices[0])))
 632             return &DOSFS_Devices[req->attr];
 633     }
 634     return NULL;
 635 }
 636
 637
 638 /***********************************************************************
 639  *           DOSFS_OpenDevice
 640  *
 641  * Open a DOS device. This might not map 1:1 into the UNIX device concept.
 642  */
 643 HFILE DOSFS_OpenDevice( const char *name, DWORD access )
 644 {
 645     int i;
 646     const char *p;
 647
 648     if (!name) return (HFILE)NULL; /* if FILE_DupUnixHandle was used */
 649     if (name[0] && (name[1] == ':')) name += 2;
 650     if ((p = strrchr( name, '/' ))) name = p + 1;
 651     if ((p = strrchr( name, '\\' ))) name = p + 1;
 652     for (i = 0; i < sizeof(DOSFS_Devices)/sizeof(DOSFS_Devices[0]); i++)
 653     {
 654         const char *dev = DOSFS_Devices[i].name;
 655         if (!lstrncmpiA( dev, name, strlen(dev) ))
 656         {
 657             p = name + strlen( dev );
 658             if (!*p || (*p == '.')) {
 659                 /* got it */
 660                 if (!strcmp(DOSFS_Devices[i].name,"NUL"))
 661                     return FILE_CreateFile( "/dev/null", access,
 662                                             FILE_SHARE_READ|FILE_SHARE_WRITE, NULL,
 663                                             OPEN_EXISTING, 0, -1, TRUE );
 664                 if (!strcmp(DOSFS_Devices[i].name,"CON")) {
 665                         HFILE to_dup;
 666                         HFILE handle;
 667                         switch (access & (GENERIC_READ|GENERIC_WRITE)) {
 668                         case GENERIC_READ:
 669                                 to_dup = GetStdHandle( STD_INPUT_HANDLE );
 670                                 break;
 671                         case GENERIC_WRITE:
 672                                 to_dup = GetStdHandle( STD_OUTPUT_HANDLE );
 673                                 break;
 674                         default:
 675                                 FIXME("can't open CON read/write\n");
 676                                 return HFILE_ERROR;
 677                                 break;
 678                         }
 679                         if (!DuplicateHandle( GetCurrentProcess(), to_dup, GetCurrentProcess(),
 680                                               &handle, 0, FALSE, DUPLICATE_SAME_ACCESS ))
 681                             handle = HFILE_ERROR;
 682                         return handle;
 683                 }
 684                 if (!strcmp(DOSFS_Devices[i].name,"SCSIMGR$") ||
 685                     !strcmp(DOSFS_Devices[i].name,"HPSCAN"))
 686                 {
 687                     return FILE_CreateDevice( i, access, NULL );
 688                 }
 689                 {
 690                     HFILE r;
 691                     char devname[40];
 692                     PROFILE_GetWineIniString("serialports",name,"",devname,sizeof devname);
 693
 694                     if(devname[0])
 695                     {
 696                         TRACE_(file)("DOSFS_OpenDevice %s is %s\n",
 697                                      DOSFS_Devices[i].name,devname);
 698                         r =  FILE_CreateFile( devname, access,
 699                                 FILE_SHARE_READ|FILE_SHARE_WRITE, NULL,
 700                                 OPEN_EXISTING, 0, -1, TRUE );
 701                         TRACE_(file)("Create_File return %08X\n",r);
 702                         return r;
 703                     }
 704                 }
 705
 706                 FIXME("device open %s not supported (yet)\n",DOSFS_Devices[i].name);
 707                 return HFILE_ERROR;
 708             }
 709         }
 710     }
 711     return HFILE_ERROR;
 712 }
 713
 714
 715 /***********************************************************************
 716  *           DOSFS_GetPathDrive
 717  *
 718  * Get the drive specified by a given path name (DOS or Unix format).
 719  */
 720 static int DOSFS_GetPathDrive( const char **name )
 721 {
 722     int drive;
 723     const char *p = *name;
 724
 725     if (*p && (p[1] == ':'))
 726     {
 727         drive = toupper(*p) - 'A';
 728         *name += 2;
 729     }
 730     else if (*p == '/') /* Absolute Unix path? */
 731     {
 732         if ((drive = DRIVE_FindDriveRoot( name )) == -1)
 733         {
 734             MESSAGE("Warning: %s not accessible from a DOS drive\n", *name );
 735             /* Assume it really was a DOS name */
 736             drive = DRIVE_GetCurrentDrive();
 737         }
 738     }
 739     else drive = DRIVE_GetCurrentDrive();
 740
 741     if (!DRIVE_IsValid(drive))
 742     {
 743         SetLastError( ERROR_INVALID_DRIVE );
 744         return -1;
 745     }
 746     return drive;
 747 }
 748
 749
 750 /***********************************************************************
 751  *           DOSFS_GetFullName
 752  *
 753  * Convert a file name (DOS or mixed DOS/Unix format) to a valid
 754  * Unix name / short DOS name pair.
 755  * Return FALSE if one of the path components does not exist. The last path
 756  * component is only checked if 'check_last' is non-zero.
 757  * The buffers pointed to by 'long_buf' and 'short_buf' must be
 758  * at least MAX_PATHNAME_LEN long.
 759  */
 760 BOOL DOSFS_GetFullName( LPCSTR name, BOOL check_last, DOS_FULL_NAME *full )
 761 {
 762     BOOL found;
 763     UINT flags;
 764     char *p_l, *p_s, *root;
 765
 766     TRACE("%s (last=%d)\n", name, check_last );
 767
 768     if ((full->drive = DOSFS_GetPathDrive( &name )) == -1) return FALSE;
 769     flags = DRIVE_GetFlags( full->drive );
 770
 771     lstrcpynA( full->long_name, DRIVE_GetRoot( full->drive ),
 772                  sizeof(full->long_name) );
 773     if (full->long_name[1]) root = full->long_name + strlen(full->long_name);
 774     else root = full->long_name;  /* root directory */
 775
 776     strcpy( full->short_name, "A:\\" );
 777     full->short_name[0] += full->drive;
 778
 779     if ((*name == '\\') || (*name == '/'))  /* Absolute path */
 780     {
 781         while ((*name == '\\') || (*name == '/')) name++;
 782     }
 783     else  /* Relative path */
 784     {
 785         lstrcpynA( root + 1, DRIVE_GetUnixCwd( full->drive ),
 786                      sizeof(full->long_name) - (root - full->long_name) - 1 );
 787         if (root[1]) *root = '/';
 788         lstrcpynA( full->short_name + 3, DRIVE_GetDosCwd( full->drive ),
 789                      sizeof(full->short_name) - 3 );
 790     }
 791
 792     p_l = full->long_name[1] ? full->long_name + strlen(full->long_name)
 793                              : full->long_name;
 794     p_s = full->short_name[3] ? full->short_name + strlen(full->short_name)
 795                               : full->short_name + 2;
 796     found = TRUE;
 797
 798     while (*name && found)
 799     {
 800         /* Check for '.' and '..' */
 801
 802         if (*name == '.')
 803         {
 804             if (IS_END_OF_NAME(name[1]))
 805             {
 806                 name++;
 807                 while ((*name == '\\') || (*name == '/')) name++;
 808                 continue;
 809             }
 810             else if ((name[1] == '.') && IS_END_OF_NAME(name[2]))
 811             {
 812                 name += 2;
 813                 while ((*name == '\\') || (*name == '/')) name++;
 814                 while ((p_l > root) && (*p_l != '/')) p_l--;
 815                 while ((p_s > full->short_name + 2) && (*p_s != '\\')) p_s--;
 816                 *p_l = *p_s = '\0';  /* Remove trailing separator */
 817                 continue;
 818             }
 819         }
 820
 821         /* Make sure buffers are large enough */
 822
 823         if ((p_s >= full->short_name + sizeof(full->short_name) - 14) ||
 824             (p_l >= full->long_name + sizeof(full->long_name) - 1))
 825         {
 826             SetLastError( ERROR_PATH_NOT_FOUND );
 827             return FALSE;
 828         }
 829
 830         /* Get the long and short name matching the file name */
 831
 832         if ((found = DOSFS_FindUnixName( full->long_name, name, p_l + 1,
 833                          sizeof(full->long_name) - (p_l - full->long_name) - 1,
 834                          p_s + 1, !(flags & DRIVE_CASE_SENSITIVE) )))
 835         {
 836             *p_l++ = '/';
 837             p_l   += strlen(p_l);
 838             *p_s++ = '\\';
 839             p_s   += strlen(p_s);
 840             while (!IS_END_OF_NAME(*name)) name++;
 841         }
 842         else if (!check_last)
 843         {
 844             *p_l++ = '/';
 845             *p_s++ = '\\';
 846             while (!IS_END_OF_NAME(*name) &&
 847                    (p_s < full->short_name + sizeof(full->short_name) - 1) &&
 848                    (p_l < full->long_name + sizeof(full->long_name) - 1))
 849             {
 850                 *p_s++ = tolower(*name);
 851                 /* If the drive is case-sensitive we want to create new */
 852                 /* files in lower-case otherwise we can't reopen them   */
 853                 /* under the same short name. */
 854                 if (flags & DRIVE_CASE_SENSITIVE) *p_l++ = tolower(*name);
 855                 else *p_l++ = *name;
 856                 name++;
 857             }
 858             *p_l = *p_s = '\0';
 859         }
 860         while ((*name == '\\') || (*name == '/')) name++;
 861     }
 862
 863     if (!found)
 864     {
 865         if (check_last)
 866         {
 867             SetLastError( ERROR_FILE_NOT_FOUND );
 868             return FALSE;
 869         }
 870         if (*name)  /* Not last */
 871         {
 872             SetLastError( ERROR_PATH_NOT_FOUND );
 873             return FALSE;
 874         }
 875     }
 876     if (!full->long_name[0]) strcpy( full->long_name, "/" );
 877     if (!full->short_name[2]) strcpy( full->short_name + 2, "\\" );
 878     TRACE("returning %s = %s\n", full->long_name, full->short_name );
 879     return TRUE;
 880 }
 881
 882
 883 /***********************************************************************
 884  *           GetShortPathNameA   (KERNEL32.271)
 885  *
 886  * NOTES
 887  *  observed:
 888  *  longpath=NULL: LastError=ERROR_INVALID_PARAMETER, ret=0
 889  *  *longpath="" or invalid: LastError=ERROR_BAD_PATHNAME, ret=0
 890  *
 891  * more observations ( with NT 3.51 (WinDD) ):
 892  * longpath <= 8.3 -> just copy longpath to shortpath
 893  * longpath > 8.3  ->
 894  *             a) file does not exist -> return 0, LastError = ERROR_FILE_NOT_FOUND
 895  *             b) file does exist     -> set the short filename.
 896  * - trailing slashes are reproduced in the short name, even if the
 897  *   file is not a directory
 898  * - the absolute/relative path of the short name is reproduced like found
 899  *   in the long name
 900  * - longpath and shortpath may have the same adress
 901  * Peter Ganten, 1999
 902  */
 903 DWORD WINAPI GetShortPathNameA( LPCSTR longpath, LPSTR shortpath,
 904                                   DWORD shortlen )
 905 {
 906     DOS_FULL_NAME full_name;
 907     LPSTR tmpshortpath;
 908     DWORD sp = 0, lp = 0;
 909     int tmplen, drive;
 910     UINT flags;
 911
 912     TRACE("%s\n", debugstr_a(longpath));
 913
 914     if (!longpath) {
 915       SetLastError(ERROR_INVALID_PARAMETER);
 916       return 0;
 917     }
 918     if (!longpath[0]) {
 919       SetLastError(ERROR_BAD_PATHNAME);
 920       return 0;
 921     }
 922
 923     if ( ( tmpshortpath = HeapAlloc ( GetProcessHeap(), 0, MAX_PATHNAME_LEN ) ) == NULL ) {
 924       SetLastError ( ERROR_NOT_ENOUGH_MEMORY );
 925       return 0;
 926     }
 927
 928     /* check for drive letter */
 929     if ( longpath[1] == ':' ) {
 930       tmpshortpath[0] = longpath[0];
 931       tmpshortpath[1] = ':';
 932       sp = 2;
 933     }
 934
 935     if ( ( drive = DOSFS_GetPathDrive ( &longpath )) == -1 ) return 0;
 936     flags = DRIVE_GetFlags ( drive );
 937
 938     while ( longpath[lp] ) {
 939
 940       /* check for path delimiters and reproduce them */
 941       if ( longpath[lp] == '\\' || longpath[lp] == '/' ) {
 942         if (!sp || tmpshortpath[sp-1]!= '\\')
 943         {
 944             /* strip double "\\" */
 945             tmpshortpath[sp] = '\\';
 946             sp++;
 947         }
 948         tmpshortpath[sp]=0;/*terminate string*/
 949         lp++;
 950         continue;
 951       }
 952
 953       tmplen = strcspn ( longpath + lp, "\\/" );
 954       lstrcpynA ( tmpshortpath+sp, longpath + lp, tmplen+1 );
 955
 956       /* Check, if the current element is a valid dos name */
 957       if ( DOSFS_ValidDOSName ( longpath + lp, !(flags & DRIVE_CASE_SENSITIVE) ) ) {
 958         sp += tmplen;
 959         lp += tmplen;
 960         continue;
 961       }
 962
 963       /* Check if the file exists and use the existing file name */
 964       if ( DOSFS_GetFullName ( tmpshortpath, TRUE, &full_name ) ) {
 965         lstrcpyA ( tmpshortpath+sp, strrchr ( full_name.short_name, '\\' ) + 1 );
 966         sp += lstrlenA ( tmpshortpath+sp );
 967         lp += tmplen;
 968         continue;
 969       }
 970
 971       TRACE("not found!\n" );
 972       SetLastError ( ERROR_FILE_NOT_FOUND );
 973       return 0;
 974     }
 975     tmpshortpath[sp] = 0;
 976
 977     lstrcpynA ( shortpath, tmpshortpath, shortlen );
 978     TRACE("returning %s\n", debugstr_a(shortpath) );
 979     tmplen = lstrlenA ( tmpshortpath );
 980     HeapFree ( GetProcessHeap(), 0, tmpshortpath );
 981
 982     return tmplen;
 983 }
 984
 985
 986 /***********************************************************************
 987  *           GetShortPathNameW   (KERNEL32.272)
 988  */
 989 DWORD WINAPI GetShortPathNameW( LPCWSTR longpath, LPWSTR shortpath,
 990                                   DWORD shortlen )
 991 {
 992     LPSTR longpathA, shortpathA;
 993     DWORD ret = 0;
 994
 995     longpathA = HEAP_strdupWtoA( GetProcessHeap(), 0, longpath );
 996     shortpathA = HeapAlloc ( GetProcessHeap(), 0, shortlen );
 997
 998     ret = GetShortPathNameA ( longpathA, shortpathA, shortlen );
 999     lstrcpynAtoW ( shortpath, shortpathA, shortlen );
1000
1001     HeapFree( GetProcessHeap(), 0, longpathA );
1002     HeapFree( GetProcessHeap(), 0, shortpathA );
1003
1004     return ret;
1005 }
1006
1007
1008 /***********************************************************************
1009  *           GetLongPathNameA   (KERNEL32.xxx)
1010  */
1011 DWORD WINAPI GetLongPathNameA( LPCSTR shortpath, LPSTR longpath,
1012                                   DWORD longlen )
1013 {
1014     DOS_FULL_NAME full_name;
1015     char *p, *r, *ll, *ss;
1016
1017     if (!DOSFS_GetFullName( shortpath, TRUE, &full_name )) return 0;
1018     lstrcpynA( longpath, full_name.short_name, longlen );
1019
1020     /* Do some hackery to get the long filename. */
1021
1022     if (longpath) {
1023      ss=longpath+strlen(longpath);
1024      ll=full_name.long_name+strlen(full_name.long_name);
1025      p=NULL;
1026      while (ss>=longpath)
1027      {
1028        /* FIXME: aren't we more paranoid, than needed? */
1029        while ((ss[0]=='\\') && (ss>=longpath)) ss--;
1030        p=ss;
1031        while ((ss[0]!='\\') && (ss>=longpath)) ss--;
1032        if (ss>=longpath)
1033          {
1034          /* FIXME: aren't we more paranoid, than needed? */
1035          while ((ll[0]=='/') && (ll>=full_name.long_name)) ll--;
1036          while ((ll[0]!='/') && (ll>=full_name.long_name)) ll--;
1037          if (ll<full_name.long_name)
1038               {
1039               ERR("Bad longname! (ss=%s ll=%s)\n This should never happen !\n"
1040                   ,ss ,ll );
1041               return 0;
1042               }
1043          }
1044      }
1045
1046    /* FIXME: fix for names like "C:\\" (ie. with more '\'s) */
1047       if (p && p[2])
1048         {
1049         p+=1;
1050         if ((p-longpath)>0) longlen -= (p-longpath);
1051         lstrcpynA( p, ll , longlen);
1052
1053         /* Now, change all '/' to '\' */
1054         for (r=p; r<(p+longlen); r++ )
1055           if (r[0]=='/') r[0]='\\';
1056         return strlen(longpath) - strlen(p) + longlen;
1057         }
1058     }
1059
1060     return strlen(longpath);
1061 }
1062
1063
1064 /***********************************************************************
1065  *           GetLongPathNameW   (KERNEL32.269)
1066  */
1067 DWORD WINAPI GetLongPathNameW( LPCWSTR shortpath, LPWSTR longpath,
1068                                   DWORD longlen )
1069 {
1070     DOS_FULL_NAME full_name;
1071     DWORD ret = 0;
1072     LPSTR shortpathA = HEAP_strdupWtoA( GetProcessHeap(), 0, shortpath );
1073
1074     /* FIXME: is it correct to always return a fully qualified short path? */
1075     if (DOSFS_GetFullName( shortpathA, TRUE, &full_name ))
1076     {
1077         ret = strlen( full_name.short_name );
1078         lstrcpynAtoW( longpath, full_name.long_name, longlen );
1079     }
1080     HeapFree( GetProcessHeap(), 0, shortpathA );
1081     return ret;
1082 }
1083
1084
1085 /***********************************************************************
1086  *           DOSFS_DoGetFullPathName
1087  *
1088  * Implementation of GetFullPathNameA/W.
1089  *
1090  * bon@elektron 000331:
1091  * A test for GetFullPathName with many patholotical case
1092  * gives now identical output for Wine and OSR2
1093  */
1094 static DWORD DOSFS_DoGetFullPathName( LPCSTR name, DWORD len, LPSTR result,
1095                                       BOOL unicode )
1096 {
1097     DWORD ret;
1098     DOS_FULL_NAME full_name;
1099     char *p,*q;
1100     const char * root;
1101     char drivecur[]="c:.";
1102     char driveletter=0;
1103     int namelen,drive=0;
1104
1105     if ((strlen(name) >1)&& (name[1]==':'))
1106       /*drive letter given */
1107       {
1108         driveletter = name[0];
1109       }
1110     if ((strlen(name) >2)&& (name[1]==':') &&
1111              ((name[2]=='\\') || (name[2]=='/')))
1112       /*absolue path given */
1113       {
1114         lstrcpynA(full_name.short_name,name,MAX_PATHNAME_LEN);
1115       }
1116     else
1117       {
1118         if (driveletter)
1119           drivecur[0]=driveletter;
1120         else
1121           strcpy(drivecur,".");
1122         if (!DOSFS_GetFullName( drivecur, FALSE, &full_name ))
1123           {
1124             FIXME("internal: error getting drive/path\n");
1125             return 0;
1126           }
1127         /* find path that drive letter substitutes*/
1128         drive = (int)toupper(full_name.short_name[0]) -0x41;
1129         root= DRIVE_GetRoot(drive);
1130         p= full_name.long_name +strlen(root);
1131         /* append long name (= unix name) to drive */
1132         lstrcpynA(full_name.short_name+2,p,MAX_PATHNAME_LEN-3);
1133         /* append name to treat */
1134         namelen= strlen(full_name.short_name);
1135         p = (char*)name;
1136         if (driveletter)
1137           p += +2; /* skip drive name when appending */
1138         if (namelen +2  + strlen(p) > MAX_PATHNAME_LEN)
1139           {
1140             FIXME("internal error: buffer too small\n");
1141              return 0;
1142           }
1143         full_name.short_name[namelen++] ='\\';
1144         full_name.short_name[namelen] = 0;
1145         lstrcpynA(full_name.short_name +namelen,p,MAX_PATHNAME_LEN-namelen);
1146       }
1147     /* reverse all slashes */
1148     for (p=full_name.short_name;
1149          p < full_name.short_name+strlen(full_name.short_name);
1150          p++)
1151       {
1152         if ( *p == '/' )
1153           *p = '\\';
1154       }
1155      /* Use memmove, as areas overlap*/
1156      /* Delete .. */
1157     while ((p = strstr(full_name.short_name,"\\..\\")))
1158       {
1159         if (p > full_name.short_name+2)
1160           {
1161             *p = 0;
1162             q = strrchr(full_name.short_name,'\\');
1163             memmove(q+1,p+4,strlen(p+4)+1);
1164           }
1165         else
1166           {
1167             memmove(full_name.short_name+3,p+4,strlen(p+4)+1);
1168           }
1169       }
1170     if ((full_name.short_name[2]=='.')&&(full_name.short_name[3]=='.'))
1171         {
1172           /* This case istn't treated yet : c:..\test */
1173           memmove(full_name.short_name+2,full_name.short_name+4,
1174                   strlen(full_name.short_name+4)+1);
1175         }
1176      /* Delete . */
1177     while ((p = strstr(full_name.short_name,"\\.\\")))
1178       {
1179         *(p+1) = 0;
1180         memmove(p+1,p+3,strlen(p+3));
1181       }
1182     if (!(DRIVE_GetFlags(drive) & DRIVE_CASE_PRESERVING))
1183       CharUpperA( full_name.short_name );
1184     namelen=strlen(full_name.short_name);
1185     if (!strcmp(full_name.short_name+namelen-3,"\\.."))
1186         {
1187           /* one more starnge case: "c:\test\test1\.."
1188            return "c:\test"*/
1189           *(full_name.short_name+namelen-3)=0;
1190           q = strrchr(full_name.short_name,'\\');
1191           *q =0;
1192         }
1193     if (full_name.short_name[namelen-1]=='.')
1194         full_name.short_name[(namelen--)-1] =0;
1195     if (!driveletter)
1196       if (full_name.short_name[namelen-1]=='\\')
1197         full_name.short_name[(namelen--)-1] =0;
1198     TRACE("got %s\n",full_name.short_name);
1199
1200     /* If the lpBuffer buffer is too small, the return value is the
1201     size of the buffer, in characters, required to hold the path
1202     plus the terminating \0 (tested against win95osr, bon 001118)
1203     . */
1204     ret = strlen(full_name.short_name);
1205     if (ret >= len )
1206       {
1207         /* don't touch anything when the buffer is not large enough */
1208         SetLastError( ERROR_INSUFFICIENT_BUFFER );
1209         return ret+1;
1210       }
1211     if (result)
1212     {
1213         if (unicode)
1214             lstrcpynAtoW( (LPWSTR)result, full_name.short_name, len );
1215         else
1216             lstrcpynA( result, full_name.short_name, len );
1217     }
1218
1219     TRACE("returning '%s'\n", full_name.short_name );
1220     return ret;
1221 }
1222
1223
1224 /***********************************************************************
1225  *           GetFullPathNameA   (KERNEL32.272)
1226  * NOTES
1227  *   if the path closed with '\', *lastpart is 0
1228  */
1229 DWORD WINAPI GetFullPathNameA( LPCSTR name, DWORD len, LPSTR buffer,
1230                                  LPSTR *lastpart )
1231 {
1232     DWORD ret = DOSFS_DoGetFullPathName( name, len, buffer, FALSE );
1233     if (ret && (ret<=len) && buffer && lastpart)
1234     {
1235         LPSTR p = buffer + strlen(buffer);
1236
1237         if (*p != '\\')
1238         {
1239           while ((p > buffer + 2) && (*p != '\\')) p--;
1240           *lastpart = p + 1;
1241         }
1242         else *lastpart = NULL;
1243     }
1244     return ret;
1245 }
1246
1247
1248 /***********************************************************************
1249  *           GetFullPathNameW   (KERNEL32.273)
1250  */
1251 DWORD WINAPI GetFullPathNameW( LPCWSTR name, DWORD len, LPWSTR buffer,
1252                                  LPWSTR *lastpart )
1253 {
1254     LPSTR nameA = HEAP_strdupWtoA( GetProcessHeap(), 0, name );
1255     DWORD ret = DOSFS_DoGetFullPathName( nameA, len, (LPSTR)buffer, TRUE );
1256     HeapFree( GetProcessHeap(), 0, nameA );
1257     if (ret && (ret<=len) && buffer && lastpart)
1258     {
1259         LPWSTR p = buffer + lstrlenW(buffer);
1260         if (*p != (WCHAR)'\\')
1261         {
1262             while ((p > buffer + 2) && (*p != (WCHAR)'\\')) p--;
1263             *lastpart = p + 1;
1264         }
1265         else *lastpart = NULL;
1266     }
1267     return ret;
1268 }
1269
1270 /***********************************************************************
1271  *           DOSFS_FindNextEx
1272  */
1273 static int DOSFS_FindNextEx( FIND_FIRST_INFO *info, WIN32_FIND_DATAA *entry )
1274 {
1275     BYTE attr = info->attr | FA_UNUSED | FA_ARCHIVE | FA_RDONLY;
1276     UINT flags = DRIVE_GetFlags( info->drive );
1277     char *p, buffer[MAX_PATHNAME_LEN];
1278     const char *drive_path;
1279     int drive_root;
1280     LPCSTR long_name, short_name;
1281     BY_HANDLE_FILE_INFORMATION fileinfo;
1282     char dos_name[13];
1283
1284     if ((info->attr & ~(FA_UNUSED | FA_ARCHIVE | FA_RDONLY)) == FA_LABEL)
1285     {
1286         if (info->cur_pos) return 0;
1287         entry->dwFileAttributes  = FILE_ATTRIBUTE_LABEL;
1288         DOSFS_UnixTimeToFileTime( (time_t)0, &entry->ftCreationTime, 0 );
1289         DOSFS_UnixTimeToFileTime( (time_t)0, &entry->ftLastAccessTime, 0 );
1290         DOSFS_UnixTimeToFileTime( (time_t)0, &entry->ftLastWriteTime, 0 );
1291         entry->nFileSizeHigh     = 0;
1292         entry->nFileSizeLow      = 0;
1293         entry->dwReserved0       = 0;
1294         entry->dwReserved1       = 0;
1295         DOSFS_ToDosDTAFormat( DRIVE_GetLabel( info->drive ), entry->cFileName );
1296         strcpy( entry->cAlternateFileName, entry->cFileName );
1297         info->cur_pos++;
1298         return 1;
1299     }
1300
1301     drive_path = info->path + strlen(DRIVE_GetRoot( info->drive ));
1302     while ((*drive_path == '/') || (*drive_path == '\\')) drive_path++;
1303     drive_root = !*drive_path;
1304
1305     lstrcpynA( buffer, info->path, sizeof(buffer) - 1 );
1306     strcat( buffer, "/" );
1307     p = buffer + strlen(buffer);
1308
1309     while (DOSFS_ReadDir( info->dir, &long_name, &short_name ))
1310     {
1311         info->cur_pos++;
1312
1313         /* Don't return '.' and '..' in the root of the drive */
1314         if (drive_root && (long_name[0] == '.') &&
1315             (!long_name[1] || ((long_name[1] == '.') && !long_name[2])))
1316             continue;
1317
1318         /* Check the long mask */
1319
1320         if (info->long_mask)
1321         {
1322             if (!DOSFS_MatchLong( info->long_mask, long_name,
1323                                   flags & DRIVE_CASE_SENSITIVE )) continue;
1324         }
1325
1326         /* Check the short mask */
1327
1328         if (info->short_mask)
1329         {
1330             if (!short_name)
1331             {
1332                 DOSFS_Hash( long_name, dos_name, TRUE,
1333                             !(flags & DRIVE_CASE_SENSITIVE) );
1334                 short_name = dos_name;
1335             }
1336             if (!DOSFS_MatchShort( info->short_mask, short_name )) continue;
1337         }
1338
1339         /* Check the file attributes */
1340
1341         lstrcpynA( p, long_name, sizeof(buffer) - (int)(p - buffer) );
1342         if (!FILE_Stat( buffer, &fileinfo ))
1343         {
1344             WARN("can't stat %s\n", buffer);
1345             continue;
1346         }
1347         if (fileinfo.dwFileAttributes & ~attr) continue;
1348
1349         /* We now have a matching entry; fill the result and return */
1350
1351         entry->dwFileAttributes = fileinfo.dwFileAttributes;
1352         entry->ftCreationTime   = fileinfo.ftCreationTime;
1353         entry->ftLastAccessTime = fileinfo.ftLastAccessTime;
1354         entry->ftLastWriteTime  = fileinfo.ftLastWriteTime;
1355         entry->nFileSizeHigh    = fileinfo.nFileSizeHigh;
1356         entry->nFileSizeLow     = fileinfo.nFileSizeLow;
1357
1358         if (short_name)
1359             DOSFS_ToDosDTAFormat( short_name, entry->cAlternateFileName );
1360         else
1361             DOSFS_Hash( long_name, entry->cAlternateFileName, FALSE,
1362                         !(flags & DRIVE_CASE_SENSITIVE) );
1363
1364         lstrcpynA( entry->cFileName, long_name, sizeof(entry->cFileName) );
1365         if (!(flags & DRIVE_CASE_PRESERVING)) CharLowerA( entry->cFileName );
1366         TRACE("returning %s (%s) %02lx %ld\n",
1367               entry->cFileName, entry->cAlternateFileName,
1368               entry->dwFileAttributes, entry->nFileSizeLow );
1369         return 1;
1370     }
1371     return 0;  /* End of directory */
1372 }
1373
1374 /***********************************************************************
1375  *           DOSFS_FindNext
1376  *
1377  * Find the next matching file. Return the number of entries read to find
1378  * the matching one, or 0 if no more entries.
1379  * 'short_mask' is the 8.3 mask (in FCB format), 'long_mask' is the long
1380  * file name mask. Either or both can be NULL.
1381  *
1382  * NOTE: This is supposed to be only called by the int21 emulation
1383  *       routines. Thus, we should own the Win16Mutex anyway.
1384  *       Nevertheless, we explicitly enter it to ensure the static
1385  *       directory cache is protected.
1386  */
1387 int DOSFS_FindNext( const char *path, const char *short_mask,
1388                     const char *long_mask, int drive, BYTE attr,
1389                     int skip, WIN32_FIND_DATAA *entry )
1390 {
1391     static FIND_FIRST_INFO info = { NULL };
1392     LPCSTR short_name, long_name;
1393     int count;
1394
1395     SYSLEVEL_EnterWin16Lock();
1396
1397     /* Check the cached directory */
1398     if (!(info.dir && info.path == path && info.short_mask == short_mask
1399                    && info.long_mask == long_mask && info.drive == drive
1400                    && info.attr == attr && info.cur_pos <= skip))
1401     {
1402         /* Not in the cache, open it anew */
1403         if (info.dir) DOSFS_CloseDir( info.dir );
1404
1405         info.path = (LPSTR)path;
1406         info.long_mask = (LPSTR)long_mask;
1407         info.short_mask = (LPSTR)short_mask;
1408         info.attr = attr;
1409         info.drive = drive;
1410         info.cur_pos = 0;
1411         info.dir = DOSFS_OpenDir( info.path );
1412     }
1413
1414     /* Skip to desired position */
1415     while (info.cur_pos < skip)
1416         if (info.dir && DOSFS_ReadDir( info.dir, &long_name, &short_name ))
1417             info.cur_pos++;
1418         else
1419             break;
1420
1421     if (info.dir && info.cur_pos == skip && DOSFS_FindNextEx( &info, entry ))
1422         count = info.cur_pos - skip;
1423     else
1424         count = 0;
1425
1426     if (!count)
1427     {
1428         if (info.dir) DOSFS_CloseDir( info.dir );
1429         memset( &info, '\0', sizeof(info) );
1430     }
1431
1432     SYSLEVEL_LeaveWin16Lock();
1433
1434     return count;
1435 }
1436
1437
1438
1439 /*************************************************************************
1440  *           FindFirstFile16   (KERNEL.413)
1441  */
1442 HANDLE16 WINAPI FindFirstFile16( LPCSTR path, WIN32_FIND_DATAA *data )
1443 {
1444     DOS_FULL_NAME full_name;
1445     HGLOBAL16 handle;
1446     FIND_FIRST_INFO *info;
1447
1448     data->dwReserved0 = data->dwReserved1 = 0x0;
1449     if (!path) return 0;
1450     if (!DOSFS_GetFullName( path, FALSE, &full_name ))
1451         return INVALID_HANDLE_VALUE16;
1452     if (!(handle = GlobalAlloc16( GMEM_MOVEABLE, sizeof(FIND_FIRST_INFO) )))
1453         return INVALID_HANDLE_VALUE16;
1454     info = (FIND_FIRST_INFO *)GlobalLock16( handle );
1455     info->path = HEAP_strdupA( GetProcessHeap(), 0, full_name.long_name );
1456     info->long_mask = strrchr( info->path, '/' );
1457     *(info->long_mask++) = '\0';
1458     info->short_mask = NULL;
1459     info->attr = 0xff;
1460     if (path[0] && (path[1] == ':')) info->drive = toupper(*path) - 'A';
1461     else info->drive = DRIVE_GetCurrentDrive();
1462     info->cur_pos = 0;
1463
1464     info->dir = DOSFS_OpenDir( info->path );
1465
1466     GlobalUnlock16( handle );
1467     if (!FindNextFile16( handle, data ))
1468     {
1469         FindClose16( handle );
1470         SetLastError( ERROR_NO_MORE_FILES );
1471         return INVALID_HANDLE_VALUE16;
1472     }
1473     return handle;
1474 }
1475
1476
1477 /*************************************************************************
1478  *           FindFirstFileA   (KERNEL32.123)
1479  */
1480 HANDLE WINAPI FindFirstFileA( LPCSTR path, WIN32_FIND_DATAA *data )
1481 {
1482     HANDLE handle = FindFirstFile16( path, data );
1483     if (handle == INVALID_HANDLE_VALUE16) return INVALID_HANDLE_VALUE;
1484     return handle;
1485 }
1486
1487
1488 /*************************************************************************
1489  *           FindFirstFileW   (KERNEL32.124)
1490  */
1491 HANDLE WINAPI FindFirstFileW( LPCWSTR path, WIN32_FIND_DATAW *data )
1492 {
1493     WIN32_FIND_DATAA dataA;
1494     LPSTR pathA = HEAP_strdupWtoA( GetProcessHeap(), 0, path );
1495     HANDLE handle = FindFirstFileA( pathA, &dataA );
1496     HeapFree( GetProcessHeap(), 0, pathA );
1497     if (handle != INVALID_HANDLE_VALUE)
1498     {
1499         data->dwFileAttributes = dataA.dwFileAttributes;
1500         data->ftCreationTime   = dataA.ftCreationTime;
1501         data->ftLastAccessTime = dataA.ftLastAccessTime;
1502         data->ftLastWriteTime  = dataA.ftLastWriteTime;
1503         data->nFileSizeHigh    = dataA.nFileSizeHigh;
1504         data->nFileSizeLow     = dataA.nFileSizeLow;
1505         lstrcpyAtoW( data->cFileName, dataA.cFileName );
1506         lstrcpyAtoW( data->cAlternateFileName, dataA.cAlternateFileName );
1507     }
1508     return handle;
1509 }
1510
1511
1512 /*************************************************************************
1513  *           FindNextFile16   (KERNEL.414)
1514  */
1515 BOOL16 WINAPI FindNextFile16( HANDLE16 handle, WIN32_FIND_DATAA *data )
1516 {
1517     FIND_FIRST_INFO *info;
1518
1519     if (!(info = (FIND_FIRST_INFO *)GlobalLock16( handle )))
1520     {
1521         SetLastError( ERROR_INVALID_HANDLE );
1522         return FALSE;
1523     }
1524     GlobalUnlock16( handle );
1525     if (!info->path || !info->dir)
1526     {
1527         SetLastError( ERROR_NO_MORE_FILES );
1528         return FALSE;
1529     }
1530     if (!DOSFS_FindNextEx( info, data ))
1531     {
1532         DOSFS_CloseDir( info->dir ); info->dir = NULL;
1533         HeapFree( GetProcessHeap(), 0, info->path );
1534         info->path = info->long_mask = NULL;
1535         SetLastError( ERROR_NO_MORE_FILES );
1536         return FALSE;
1537     }
1538     return TRUE;
1539 }
1540
1541
1542 /*************************************************************************
1543  *           FindNextFileA   (KERNEL32.126)
1544  */
1545 BOOL WINAPI FindNextFileA( HANDLE handle, WIN32_FIND_DATAA *data )
1546 {
1547     return FindNextFile16( handle, data );
1548 }
1549
1550
1551 /*************************************************************************
1552  *           FindNextFileW   (KERNEL32.127)
1553  */
1554 BOOL WINAPI FindNextFileW( HANDLE handle, WIN32_FIND_DATAW *data )
1555 {
1556     WIN32_FIND_DATAA dataA;
1557     if (!FindNextFileA( handle, &dataA )) return FALSE;
1558     data->dwFileAttributes = dataA.dwFileAttributes;
1559     data->ftCreationTime   = dataA.ftCreationTime;
1560     data->ftLastAccessTime = dataA.ftLastAccessTime;
1561     data->ftLastWriteTime  = dataA.ftLastWriteTime;
1562     data->nFileSizeHigh    = dataA.nFileSizeHigh;
1563     data->nFileSizeLow     = dataA.nFileSizeLow;
1564     lstrcpyAtoW( data->cFileName, dataA.cFileName );
1565     lstrcpyAtoW( data->cAlternateFileName, dataA.cAlternateFileName );
1566     return TRUE;
1567 }
1568
1569
1570 /*************************************************************************
1571  *           FindClose16   (KERNEL.415)
1572  */
1573 BOOL16 WINAPI FindClose16( HANDLE16 handle )
1574 {
1575     FIND_FIRST_INFO *info;
1576
1577     if ((handle == INVALID_HANDLE_VALUE16) ||
1578         !(info = (FIND_FIRST_INFO *)GlobalLock16( handle )))
1579     {
1580         SetLastError( ERROR_INVALID_HANDLE );
1581         return FALSE;
1582     }
1583     if (info->dir) DOSFS_CloseDir( info->dir );
1584     if (info->path) HeapFree( GetProcessHeap(), 0, info->path );
1585     GlobalUnlock16( handle );
1586     GlobalFree16( handle );
1587     return TRUE;
1588 }
1589
1590
1591 /*************************************************************************
1592  *           FindClose   (KERNEL32.119)
1593  */
1594 BOOL WINAPI FindClose( HANDLE handle )
1595 {
1596     return FindClose16( (HANDLE16)handle );
1597 }
1598
1599
1600 /***********************************************************************
1601  *           DOSFS_UnixTimeToFileTime
1602  *
1603  * Convert a Unix time to FILETIME format.
1604  * The FILETIME structure is a 64-bit value representing the number of
1605  * 100-nanosecond intervals since January 1, 1601, 0:00.
1606  * 'remainder' is the nonnegative number of 100-ns intervals
1607  * corresponding to the time fraction smaller than 1 second that
1608  * couldn't be stored in the time_t value.
1609  */
1610 void DOSFS_UnixTimeToFileTime( time_t unix_time, FILETIME *filetime,
1611                                DWORD remainder )
1612 {
1613     /* NOTES:
1614
1615        CONSTANTS:
1616        The time difference between 1 January 1601, 00:00:00 and
1617        1 January 1970, 00:00:00 is 369 years, plus the leap years
1618        from 1604 to 1968, excluding 1700, 1800, 1900.
1619        This makes (1968 - 1600) / 4 - 3 = 89 leap days, and a total
1620        of 134774 days.
1621
1622        Any day in that period had 24 * 60 * 60 = 86400 seconds.
1623
1624        The time difference is 134774 * 86400 * 10000000, which can be written
1625        116444736000000000
1626        27111902 * 2^32 + 3577643008
1627        413 * 2^48 + 45534 * 2^32 + 54590 * 2^16 + 32768
1628
1629        If you find that these constants are buggy, please change them in all
1630        instances in both conversion functions.
1631
1632        VERSIONS:
1633        There are two versions, one of them uses long long variables and
1634        is presumably faster but not ISO C. The other one uses standard C
1635        data types and operations but relies on the assumption that negative
1636        numbers are stored as 2's complement (-1 is 0xffff....). If this
1637        assumption is violated, dates before 1970 will not convert correctly.
1638        This should however work on any reasonable architecture where WINE
1639        will run.
1640
1641        DETAILS:
1642
1643        Take care not to remove the casts. I have tested these functions
1644        (in both versions) for a lot of numbers. I would be interested in
1645        results on other compilers than GCC.
1646
1647        The operations have been designed to account for the possibility
1648        of 64-bit time_t in future UNICES. Even the versions without
1649        internal long long numbers will work if time_t only is 64 bit.
1650        A 32-bit shift, which was necessary for that operation, turned out
1651        not to work correctly in GCC, besides giving the warning. So I
1652        used a double 16-bit shift instead. Numbers are in the ISO version
1653        represented by three limbs, the most significant with 32 bit, the
1654        other two with 16 bit each.
1655
1656        As the modulo-operator % is not well-defined for negative numbers,
1657        negative divisors have been avoided in DOSFS_FileTimeToUnixTime.
1658
1659        There might be quicker ways to do this in C. Certainly so in
1660        assembler.
1661
1662        Claus Fischer, fischer@iue.tuwien.ac.at
1663        */
1664
1665 #if SIZEOF_LONG_LONG >= 8
1666 #  define USE_LONG_LONG 1
1667 #else
1668 #  define USE_LONG_LONG 0
1669 #endif
1670
1671 #if USE_LONG_LONG               /* gcc supports long long type */
1672
1673     long long int t = unix_time;
1674     t *= 10000000;
1675     t += 116444736000000000LL;
1676     t += remainder;
1677     filetime->dwLowDateTime  = (UINT)t;
1678     filetime->dwHighDateTime = (UINT)(t >> 32);
1679
1680 #else  /* ISO version */
1681
1682     UINT a0;                    /* 16 bit, low    bits */
1683     UINT a1;                    /* 16 bit, medium bits */
1684     UINT a2;                    /* 32 bit, high   bits */
1685
1686     /* Copy the unix time to a2/a1/a0 */
1687     a0 =  unix_time & 0xffff;
1688     a1 = (unix_time >> 16) & 0xffff;
1689     /* This is obsolete if unix_time is only 32 bits, but it does not hurt.
1690        Do not replace this by >> 32, it gives a compiler warning and it does
1691        not work. */
1692     a2 = (unix_time >= 0 ? (unix_time >> 16) >> 16 :
1693           ~((~unix_time >> 16) >> 16));
1694
1695     /* Multiply a by 10000000 (a = a2/a1/a0)
1696        Split the factor into 10000 * 1000 which are both less than 0xffff. */
1697     a0 *= 10000;
1698     a1 = a1 * 10000 + (a0 >> 16);
1699     a2 = a2 * 10000 + (a1 >> 16);
1700     a0 &= 0xffff;
1701     a1 &= 0xffff;
1702
1703     a0 *= 1000;
1704     a1 = a1 * 1000 + (a0 >> 16);
1705     a2 = a2 * 1000 + (a1 >> 16);
1706     a0 &= 0xffff;
1707     a1 &= 0xffff;
1708
1709     /* Add the time difference and the remainder */
1710     a0 += 32768 + (remainder & 0xffff);
1711     a1 += 54590 + (remainder >> 16   ) + (a0 >> 16);
1712     a2 += 27111902                     + (a1 >> 16);
1713     a0 &= 0xffff;
1714     a1 &= 0xffff;
1715
1716     /* Set filetime */
1717     filetime->dwLowDateTime  = (a1 << 16) + a0;
1718     filetime->dwHighDateTime = a2;
1719 #endif
1720 }
1721
1722
1723 /***********************************************************************
1724  *           DOSFS_FileTimeToUnixTime
1725  *
1726  * Convert a FILETIME format to Unix time.
1727  * If not NULL, 'remainder' contains the fractional part of the filetime,
1728  * in the range of [0..9999999] (even if time_t is negative).
1729  */
1730 time_t DOSFS_FileTimeToUnixTime( const FILETIME *filetime, DWORD *remainder )
1731 {
1732     /* Read the comment in the function DOSFS_UnixTimeToFileTime. */
1733 #if USE_LONG_LONG
1734
1735     long long int t = filetime->dwHighDateTime;
1736     t <<= 32;
1737     t += (UINT)filetime->dwLowDateTime;
1738     t -= 116444736000000000LL;
1739     if (t < 0)
1740     {
1741         if (remainder) *remainder = 9999999 - (-t - 1) % 10000000;
1742         return -1 - ((-t - 1) / 10000000);
1743     }
1744     else
1745     {
1746         if (remainder) *remainder = t % 10000000;
1747         return t / 10000000;
1748     }
1749
1750 #else  /* ISO version */
1751
1752     UINT a0;                    /* 16 bit, low    bits */
1753     UINT a1;                    /* 16 bit, medium bits */
1754     UINT a2;                    /* 32 bit, high   bits */
1755     UINT r;                     /* remainder of division */
1756     unsigned int carry;         /* carry bit for subtraction */
1757     int negative;               /* whether a represents a negative value */
1758
1759     /* Copy the time values to a2/a1/a0 */
1760     a2 =  (UINT)filetime->dwHighDateTime;
1761     a1 = ((UINT)filetime->dwLowDateTime ) >> 16;
1762     a0 = ((UINT)filetime->dwLowDateTime ) & 0xffff;
1763
1764     /* Subtract the time difference */
1765     if (a0 >= 32768           ) a0 -=             32768        , carry = 0;
1766     else                        a0 += (1 << 16) - 32768        , carry = 1;
1767
1768     if (a1 >= 54590    + carry) a1 -=             54590 + carry, carry = 0;
1769     else                        a1 += (1 << 16) - 54590 - carry, carry = 1;
1770
1771     a2 -= 27111902 + carry;
1772
1773     /* If a is negative, replace a by (-1-a) */
1774     negative = (a2 >= ((UINT)1) << 31);
1775     if (negative)
1776     {
1777         /* Set a to -a - 1 (a is a2/a1/a0) */
1778         a0 = 0xffff - a0;
1779         a1 = 0xffff - a1;
1780         a2 = ~a2;
1781     }
1782
1783     /* Divide a by 10000000 (a = a2/a1/a0), put the rest into r.
1784        Split the divisor into 10000 * 1000 which are both less than 0xffff. */
1785     a1 += (a2 % 10000) << 16;
1786     a2 /=       10000;
1787     a0 += (a1 % 10000) << 16;
1788     a1 /=       10000;
1789     r   =  a0 % 10000;
1790     a0 /=       10000;
1791
1792     a1 += (a2 % 1000) << 16;
1793     a2 /=       1000;
1794     a0 += (a1 % 1000) << 16;
1795     a1 /=       1000;
1796     r  += (a0 % 1000) * 10000;
1797     a0 /=       1000;
1798
1799     /* If a was negative, replace a by (-1-a) and r by (9999999 - r) */
1800     if (negative)
1801     {
1802         /* Set a to -a - 1 (a is a2/a1/a0) */
1803         a0 = 0xffff - a0;
1804         a1 = 0xffff - a1;
1805         a2 = ~a2;
1806
1807         r  = 9999999 - r;
1808     }
1809
1810     if (remainder) *remainder = r;
1811
1812     /* Do not replace this by << 32, it gives a compiler warning and it does
1813        not work. */
1814     return ((((time_t)a2) << 16) << 16) + (a1 << 16) + a0;
1815 #endif
1816 }
1817
1818
1819 /***********************************************************************
1820  *           DosDateTimeToFileTime   (KERNEL32.76)
1821  */
1822 BOOL WINAPI DosDateTimeToFileTime( WORD fatdate, WORD fattime, LPFILETIME ft)
1823 {
1824     struct tm newtm;
1825
1826     newtm.tm_sec  = (fattime & 0x1f) * 2;
1827     newtm.tm_min  = (fattime >> 5) & 0x3f;
1828     newtm.tm_hour = (fattime >> 11);
1829     newtm.tm_mday = (fatdate & 0x1f);
1830     newtm.tm_mon  = ((fatdate >> 5) & 0x0f) - 1;
1831     newtm.tm_year = (fatdate >> 9) + 80;
1832     DOSFS_UnixTimeToFileTime( mktime( &newtm ), ft, 0 );
1833     return TRUE;
1834 }
1835
1836
1837 /***********************************************************************
1838  *           FileTimeToDosDateTime   (KERNEL32.111)
1839  */
1840 BOOL WINAPI FileTimeToDosDateTime( const FILETIME *ft, LPWORD fatdate,
1841                                      LPWORD fattime )
1842 {
1843     time_t unixtime = DOSFS_FileTimeToUnixTime( ft, NULL );
1844     struct tm *tm = localtime( &unixtime );
1845     if (fattime)
1846         *fattime = (tm->tm_hour << 11) + (tm->tm_min << 5) + (tm->tm_sec / 2);
1847     if (fatdate)
1848         *fatdate = ((tm->tm_year - 80) << 9) + ((tm->tm_mon + 1) << 5)
1849                    + tm->tm_mday;
1850     return TRUE;
1851 }
1852
1853
1854 /***********************************************************************
1855  *           LocalFileTimeToFileTime   (KERNEL32.373)
1856  */
1857 BOOL WINAPI LocalFileTimeToFileTime( const FILETIME *localft,
1858                                        LPFILETIME utcft )
1859 {
1860     struct tm *xtm;
1861     DWORD remainder;
1862
1863     /* convert from local to UTC. Perhaps not correct. FIXME */
1864     time_t unixtime = DOSFS_FileTimeToUnixTime( localft, &remainder );
1865     xtm = gmtime( &unixtime );
1866     DOSFS_UnixTimeToFileTime( mktime(xtm), utcft, remainder );
1867     return TRUE;
1868 }
1869
1870
1871 /***********************************************************************
1872  *           FileTimeToLocalFileTime   (KERNEL32.112)
1873  */
1874 BOOL WINAPI FileTimeToLocalFileTime( const FILETIME *utcft,
1875                                        LPFILETIME localft )
1876 {
1877     DWORD remainder;
1878     /* convert from UTC to local. Perhaps not correct. FIXME */
1879     time_t unixtime = DOSFS_FileTimeToUnixTime( utcft, &remainder );
1880 #ifdef HAVE_TIMEGM
1881     struct tm *xtm = localtime( &unixtime );
1882     time_t localtime;
1883
1884     localtime = timegm(xtm);
1885     DOSFS_UnixTimeToFileTime( localtime, localft, remainder );
1886
1887 #else
1888     struct tm *xtm,*gtm;
1889     time_t time1,time2;
1890
1891     xtm = localtime( &unixtime );
1892     gtm = gmtime( &unixtime );
1893     time1 = mktime(xtm);
1894     time2 = mktime(gtm);
1895     DOSFS_UnixTimeToFileTime( 2*time1-time2, localft, remainder );
1896 #endif
1897     return TRUE;
1898 }
1899
1900
1901 /***********************************************************************
1902  *           FileTimeToSystemTime   (KERNEL32.113)
1903  */
1904 BOOL WINAPI FileTimeToSystemTime( const FILETIME *ft, LPSYSTEMTIME syst )
1905 {
1906     struct tm *xtm;
1907     DWORD remainder;
1908     time_t xtime = DOSFS_FileTimeToUnixTime( ft, &remainder );
1909     xtm = gmtime(&xtime);
1910     syst->wYear         = xtm->tm_year+1900;
1911     syst->wMonth        = xtm->tm_mon + 1;
1912     syst->wDayOfWeek    = xtm->tm_wday;
1913     syst->wDay          = xtm->tm_mday;
1914     syst->wHour         = xtm->tm_hour;
1915     syst->wMinute       = xtm->tm_min;
1916     syst->wSecond       = xtm->tm_sec;
1917     syst->wMilliseconds = remainder / 10000;
1918     return TRUE;
1919 }
1920
1921 /***********************************************************************
1922  *           QueryDosDeviceA   (KERNEL32.413)
1923  *
1924  * returns array of strings terminated by \0, terminated by \0
1925  */
1926 DWORD WINAPI QueryDosDeviceA(LPCSTR devname,LPSTR target,DWORD bufsize)
1927 {
1928     LPSTR s;
1929     char  buffer[200];
1930
1931     TRACE("(%s,...)\n", devname ? devname : "<null>");
1932     if (!devname) {
1933         /* return known MSDOS devices */
1934         strcpy(buffer,"CON COM1 COM2 LPT1 NUL ");
1935         while ((s=strchr(buffer,' ')))
1936                 *s='\0';
1937
1938         lstrcpynA(target,buffer,bufsize);
1939         return strlen(buffer);
1940     }
1941     strcpy(buffer,"\\DEV\\");
1942     strcat(buffer,devname);
1943     if ((s=strchr(buffer,':'))) *s='\0';
1944     lstrcpynA(target,buffer,bufsize);
1945     return strlen(buffer);
1946 }
1947
1948
1949 /***********************************************************************
1950  *           QueryDosDeviceW   (KERNEL32.414)
1951  *
1952  * returns array of strings terminated by \0, terminated by \0
1953  */
1954 DWORD WINAPI QueryDosDeviceW(LPCWSTR devname,LPWSTR target,DWORD bufsize)
1955 {
1956     LPSTR devnameA = devname?HEAP_strdupWtoA(GetProcessHeap(),0,devname):NULL;
1957     LPSTR targetA = (LPSTR)HeapAlloc(GetProcessHeap(),0,bufsize);
1958     DWORD ret = QueryDosDeviceA(devnameA,targetA,bufsize);
1959
1960     lstrcpynAtoW(target,targetA,bufsize);
1961     if (devnameA) HeapFree(GetProcessHeap(),0,devnameA);
1962     if (targetA) HeapFree(GetProcessHeap(),0,targetA);
1963     return ret;
1964 }
1965
1966
1967 /***********************************************************************
1968  *           SystemTimeToFileTime   (KERNEL32.526)
1969  */
1970 BOOL WINAPI SystemTimeToFileTime( const SYSTEMTIME *syst, LPFILETIME ft )
1971 {
1972 #ifdef HAVE_TIMEGM
1973     struct tm xtm;
1974     time_t utctime;
1975 #else
1976     struct tm xtm,*local_tm,*utc_tm;
1977     time_t localtim,utctime;
1978 #endif
1979
1980     xtm.tm_year = syst->wYear-1900;
1981     xtm.tm_mon  = syst->wMonth - 1;
1982     xtm.tm_wday = syst->wDayOfWeek;
1983     xtm.tm_mday = syst->wDay;
1984     xtm.tm_hour = syst->wHour;
1985     xtm.tm_min  = syst->wMinute;
1986     xtm.tm_sec  = syst->wSecond; /* this is UTC */
1987     xtm.tm_isdst = -1;
1988 #ifdef HAVE_TIMEGM
1989     utctime = timegm(&xtm);
1990     DOSFS_UnixTimeToFileTime( utctime, ft,
1991                               syst->wMilliseconds * 10000 );
1992 #else
1993     localtim = mktime(&xtm);    /* now we've got local time */
1994     local_tm = localtime(&localtim);
1995     utc_tm = gmtime(&localtim);
1996     utctime = mktime(utc_tm);
1997     DOSFS_UnixTimeToFileTime( 2*localtim -utctime, ft,
1998                               syst->wMilliseconds * 10000 );
1999 #endif
2000     return TRUE;
2001 }
2002
2003 /***********************************************************************
2004  *           DefineDosDeviceA       (KERNEL32.182)
2005  */
2006 BOOL WINAPI DefineDosDeviceA(DWORD flags,LPCSTR devname,LPCSTR targetpath) {
2007         FIXME("(0x%08lx,%s,%s),stub!\n",flags,devname,targetpath);
2008         SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
2009         return FALSE;
2010 }