files/drive.c

   1 /*
   2  * DOS drives handling functions
   3  *
   4  * Copyright 1993 Erik Bos
   5  * Copyright 1996 Alexandre Julliard
   6  */
   7
   8 #include "config.h"
   9
  10 #include <assert.h>
  11 #include <ctype.h>
  12 #include <string.h>
  13 #include <stdlib.h>
  14 #include <sys/types.h>
  15 #include <sys/stat.h>
  16 #include <fcntl.h>
  17 #include <errno.h>
  18 #include <unistd.h>
  19
  20 #ifdef HAVE_SYS_PARAM_H
  21 # include <sys/param.h>
  22 #endif
  23 #ifdef STATFS_DEFINED_BY_SYS_VFS
  24 # include <sys/vfs.h>
  25 #else
  26 # ifdef STATFS_DEFINED_BY_SYS_MOUNT
  27 #  include <sys/mount.h>
  28 # else
  29 #  ifdef STATFS_DEFINED_BY_SYS_STATFS
  30 #   include <sys/statfs.h>
  31 #  endif
  32 # endif
  33 #endif
  34
  35 #include "winbase.h"
  36 #include "wine/winbase16.h"   /* for GetCurrentTask */
  37 #include "wine/winestring.h"  /* for lstrcpyAtoW */
  38 #include "winerror.h"
  39 #include "drive.h"
  40 #include "file.h"
  41 #include "heap.h"
  42 #include "msdos.h"
  43 #include "options.h"
  44 #include "task.h"
  45 #include "debugtools.h"
  46
  47 DECLARE_DEBUG_CHANNEL(dosfs)
  48 DECLARE_DEBUG_CHANNEL(file)
  49
  50 typedef struct
  51 {
  52     char     *root;      /* root dir in Unix format without trailing / */
  53     char     *dos_cwd;   /* cwd in DOS format without leading or trailing \ */
  54     char     *unix_cwd;  /* cwd in Unix format without leading or trailing / */
  55     char     *device;    /* raw device path */
  56     char      label[12]; /* drive label */
  57     DWORD     serial;    /* drive serial number */
  58     DRIVETYPE type;      /* drive type */
  59     UINT    flags;     /* drive flags */
  60     dev_t     dev;       /* unix device number */
  61     ino_t     ino;       /* unix inode number */
  62 } DOSDRIVE;
  63
  64
  65 static const char * const DRIVE_Types[] =
  66 {
  67     "floppy",   /* TYPE_FLOPPY */
  68     "hd",       /* TYPE_HD */
  69     "cdrom",    /* TYPE_CDROM */
  70     "network"   /* TYPE_NETWORK */
  71 };
  72
  73
  74 /* Known filesystem types */
  75
  76 typedef struct
  77 {
  78     const char *name;
  79     UINT      flags;
  80 } FS_DESCR;
  81
  82 static const FS_DESCR DRIVE_Filesystems[] =
  83 {
  84     { "unix",   DRIVE_CASE_SENSITIVE | DRIVE_CASE_PRESERVING },
  85     { "msdos",  DRIVE_SHORT_NAMES },
  86     { "dos",    DRIVE_SHORT_NAMES },
  87     { "fat",    DRIVE_SHORT_NAMES },
  88     { "vfat",   DRIVE_CASE_PRESERVING },
  89     { "win95",  DRIVE_CASE_PRESERVING },
  90     { NULL, 0 }
  91 };
  92
  93
  94 static DOSDRIVE DOSDrives[MAX_DOS_DRIVES];
  95 static int DRIVE_CurDrive = -1;
  96
  97 static HTASK16 DRIVE_LastTask = 0;
  98
  99
 100 /***********************************************************************
 101  *           DRIVE_GetDriveType
 102  */
 103 static DRIVETYPE DRIVE_GetDriveType( const char *name )
 104 {
 105     char buffer[20];
 106     int i;
 107
 108     PROFILE_GetWineIniString( name, "Type", "hd", buffer, sizeof(buffer) );
 109     for (i = 0; i < sizeof(DRIVE_Types)/sizeof(DRIVE_Types[0]); i++)
 110     {
 111         if (!strcasecmp( buffer, DRIVE_Types[i] )) return (DRIVETYPE)i;
 112     }
 113     MESSAGE("%s: unknown type '%s', defaulting to 'hd'.\n", name, buffer );
 114     return TYPE_HD;
 115 }
 116
 117
 118 /***********************************************************************
 119  *           DRIVE_GetFSFlags
 120  */
 121 static UINT DRIVE_GetFSFlags( const char *name, const char *value )
 122 {
 123     const FS_DESCR *descr;
 124
 125     for (descr = DRIVE_Filesystems; descr->name; descr++)
 126         if (!strcasecmp( value, descr->name )) return descr->flags;
 127     MESSAGE("%s: unknown filesystem type '%s', defaulting to 'win95'.\n",
 128         name, value );
 129     return DRIVE_CASE_PRESERVING;
 130 }
 131
 132
 133 /***********************************************************************
 134  *           DRIVE_Init
 135  */
 136 int DRIVE_Init(void)
 137 {
 138     int i, len, count = 0;
 139     char name[] = "Drive A";
 140     char path[MAX_PATHNAME_LEN];
 141     char buffer[80];
 142     struct stat drive_stat_buffer;
 143     char *p;
 144     DOSDRIVE *drive;
 145
 146     for (i = 0, drive = DOSDrives; i < MAX_DOS_DRIVES; i++, name[6]++, drive++)
 147     {
 148         PROFILE_GetWineIniString( name, "Path", "", path, sizeof(path)-1 );
 149         if (path[0])
 150         {
 151             p = path + strlen(path) - 1;
 152             while ((p > path) && ((*p == '/') || (*p == '\\'))) *p-- = '\0';
 153             if (!path[0]) strcpy( path, "/" );
 154
 155             if (stat( path, &drive_stat_buffer ))
 156             {
 157                 MESSAGE("Could not stat %s, ignoring drive %c:\n", path, 'A' + i );
 158                 continue;
 159             }
 160             if (!S_ISDIR(drive_stat_buffer.st_mode))
 161             {
 162                 MESSAGE("%s is not a directory, ignoring drive %c:\n",
 163                     path, 'A' + i );
 164                 continue;
 165             }
 166
 167             drive->root = HEAP_strdupA( SystemHeap, 0, path );
 168             drive->dos_cwd  = HEAP_strdupA( SystemHeap, 0, "" );
 169             drive->unix_cwd = HEAP_strdupA( SystemHeap, 0, "" );
 170             drive->type     = DRIVE_GetDriveType( name );
 171             drive->device   = NULL;
 172             drive->flags    = 0;
 173             drive->dev      = drive_stat_buffer.st_dev;
 174             drive->ino      = drive_stat_buffer.st_ino;
 175
 176             /* Get the drive label */
 177             PROFILE_GetWineIniString( name, "Label", name, drive->label, 12 );
 178             if ((len = strlen(drive->label)) < 11)
 179             {
 180                 /* Pad label with spaces */
 181                 memset( drive->label + len, ' ', 11 - len );
 182                 drive->label[12] = '\0';
 183             }
 184
 185             /* Get the serial number */
 186             PROFILE_GetWineIniString( name, "Serial", "12345678",
 187                                       buffer, sizeof(buffer) );
 188             drive->serial = strtoul( buffer, NULL, 16 );
 189
 190             /* Get the filesystem type */
 191             PROFILE_GetWineIniString( name, "Filesystem", "win95",
 192                                       buffer, sizeof(buffer) );
 193             drive->flags = DRIVE_GetFSFlags( name, buffer );
 194
 195             /* Get the device */
 196             PROFILE_GetWineIniString( name, "Device", "",
 197                                       buffer, sizeof(buffer) );
 198             if (buffer[0])
 199                 drive->device = HEAP_strdupA( SystemHeap, 0, buffer );
 200
 201             /* Make the first hard disk the current drive */
 202             if ((DRIVE_CurDrive == -1) && (drive->type == TYPE_HD))
 203                 DRIVE_CurDrive = i;
 204
 205             count++;
 206             TRACE_(dosfs)("%s: path=%s type=%s label='%s' serial=%08lx flags=%08x dev=%x ino=%x\n",
 207                            name, path, DRIVE_Types[drive->type],
 208                            drive->label, drive->serial, drive->flags,
 209                            (int)drive->dev, (int)drive->ino );
 210         }
 211         else WARN_(dosfs)("%s: not defined\n", name );
 212     }
 213
 214     if (!count)
 215     {
 216         MESSAGE("Warning: no valid DOS drive found, check your configuration file.\n" );
 217         /* Create a C drive pointing to Unix root dir */
 218         DOSDrives[2].root     = HEAP_strdupA( SystemHeap, 0, "/" );
 219         DOSDrives[2].dos_cwd  = HEAP_strdupA( SystemHeap, 0, "" );
 220         DOSDrives[2].unix_cwd = HEAP_strdupA( SystemHeap, 0, "" );
 221         strcpy( DOSDrives[2].label, "Drive C    " );
 222         DOSDrives[2].serial   = 0x12345678;
 223         DOSDrives[2].type     = TYPE_HD;
 224         DOSDrives[2].flags    = 0;
 225         DRIVE_CurDrive = 2;
 226     }
 227
 228     /* Make sure the current drive is valid */
 229     if (DRIVE_CurDrive == -1)
 230     {
 231         for (i = 0, drive = DOSDrives; i < MAX_DOS_DRIVES; i++, drive++)
 232         {
 233             if (drive->root && !(drive->flags & DRIVE_DISABLED))
 234             {
 235                 DRIVE_CurDrive = i;
 236                 break;
 237             }
 238         }
 239     }
 240
 241     return 1;
 242 }
 243
 244
 245 /***********************************************************************
 246  *           DRIVE_IsValid
 247  */
 248 int DRIVE_IsValid( int drive )
 249 {
 250     if ((drive < 0) || (drive >= MAX_DOS_DRIVES)) return 0;
 251     return (DOSDrives[drive].root &&
 252             !(DOSDrives[drive].flags & DRIVE_DISABLED));
 253 }
 254
 255
 256 /***********************************************************************
 257  *           DRIVE_GetCurrentDrive
 258  */
 259 int DRIVE_GetCurrentDrive(void)
 260 {
 261     TDB *pTask = (TDB *)GlobalLock16( GetCurrentTask() );
 262     if (pTask && (pTask->curdrive & 0x80)) return pTask->curdrive & ~0x80;
 263     return DRIVE_CurDrive;
 264 }
 265
 266
 267 /***********************************************************************
 268  *           DRIVE_SetCurrentDrive
 269  */
 270 int DRIVE_SetCurrentDrive( int drive )
 271 {
 272     TDB *pTask = (TDB *)GlobalLock16( GetCurrentTask() );
 273     if (!DRIVE_IsValid( drive ))
 274     {
 275         SetLastError( ERROR_INVALID_DRIVE );
 276         return 0;
 277     }
 278     TRACE_(dosfs)("%c:\n", 'A' + drive );
 279     DRIVE_CurDrive = drive;
 280     if (pTask) pTask->curdrive = drive | 0x80;
 281     return 1;
 282 }
 283
 284
 285 /***********************************************************************
 286  *           DRIVE_FindDriveRoot
 287  *
 288  * Find a drive for which the root matches the begginning of the given path.
 289  * This can be used to translate a Unix path into a drive + DOS path.
 290  * Return value is the drive, or -1 on error. On success, path is modified
 291  * to point to the beginning of the DOS path.
 292  */
 293 int DRIVE_FindDriveRoot( const char **path )
 294 {
 295     /* idea: check at all '/' positions.
 296      * If the device and inode of that path is identical with the
 297      * device and inode of the current drive then we found a solution.
 298      * If there is another drive pointing to a deeper position in
 299      * the file tree, we want to find that one, not the earlier solution.
 300      */
 301     int drive, rootdrive = -1;
 302     char buffer[MAX_PATHNAME_LEN];
 303     char *next = buffer;
 304     const char *p = *path;
 305     struct stat st;
 306
 307     strcpy( buffer, "/" );
 308     for (;;)
 309     {
 310         if (stat( buffer, &st ) || !S_ISDIR( st.st_mode )) break;
 311
 312         /* Find the drive */
 313
 314         for (drive = 0; drive < MAX_DOS_DRIVES; drive++)
 315         {
 316            if (!DOSDrives[drive].root ||
 317                (DOSDrives[drive].flags & DRIVE_DISABLED)) continue;
 318
 319            if ((DOSDrives[drive].dev == st.st_dev) &&
 320                (DOSDrives[drive].ino == st.st_ino))
 321            {
 322                rootdrive = drive;
 323                *path = p;
 324            }
 325         }
 326
 327         /* Get the next path component */
 328
 329         *next++ = '/';
 330         while ((*p == '/') || (*p == '\\')) p++;
 331         if (!*p) break;
 332         while (!IS_END_OF_NAME(*p)) *next++ = *p++;
 333         *next = 0;
 334     }
 335     *next = 0;
 336
 337     if (rootdrive != -1)
 338         TRACE_(dosfs)("%s -> drive %c:, root='%s', name='%s'\n",
 339                        buffer, 'A' + rootdrive,
 340                        DOSDrives[rootdrive].root, *path );
 341     return rootdrive;
 342 }
 343
 344
 345 /***********************************************************************
 346  *           DRIVE_GetRoot
 347  */
 348 const char * DRIVE_GetRoot( int drive )
 349 {
 350     if (!DRIVE_IsValid( drive )) return NULL;
 351     return DOSDrives[drive].root;
 352 }
 353
 354
 355 /***********************************************************************
 356  *           DRIVE_GetDosCwd
 357  */
 358 const char * DRIVE_GetDosCwd( int drive )
 359 {
 360     TDB *pTask = (TDB *)GlobalLock16( GetCurrentTask() );
 361     if (!DRIVE_IsValid( drive )) return NULL;
 362
 363     /* Check if we need to change the directory to the new task. */
 364     if (pTask && (pTask->curdrive & 0x80) &&    /* The task drive is valid */
 365         ((pTask->curdrive & ~0x80) == drive) && /* and it's the one we want */
 366         (DRIVE_LastTask != GetCurrentTask()))   /* and the task changed */
 367     {
 368         /* Perform the task-switch */
 369         if (!DRIVE_Chdir( drive, pTask->curdir )) DRIVE_Chdir( drive, "\\" );
 370         DRIVE_LastTask = GetCurrentTask();
 371     }
 372     return DOSDrives[drive].dos_cwd;
 373 }
 374
 375
 376 /***********************************************************************
 377  *           DRIVE_GetUnixCwd
 378  */
 379 const char * DRIVE_GetUnixCwd( int drive )
 380 {
 381     TDB *pTask = (TDB *)GlobalLock16( GetCurrentTask() );
 382     if (!DRIVE_IsValid( drive )) return NULL;
 383
 384     /* Check if we need to change the directory to the new task. */
 385     if (pTask && (pTask->curdrive & 0x80) &&    /* The task drive is valid */
 386         ((pTask->curdrive & ~0x80) == drive) && /* and it's the one we want */
 387         (DRIVE_LastTask != GetCurrentTask()))   /* and the task changed */
 388     {
 389         /* Perform the task-switch */
 390         if (!DRIVE_Chdir( drive, pTask->curdir )) DRIVE_Chdir( drive, "\\" );
 391         DRIVE_LastTask = GetCurrentTask();
 392     }
 393     return DOSDrives[drive].unix_cwd;
 394 }
 395
 396
 397 /***********************************************************************
 398  *           DRIVE_GetLabel
 399  */
 400 const char * DRIVE_GetLabel( int drive )
 401 {
 402     if (!DRIVE_IsValid( drive )) return NULL;
 403     return DOSDrives[drive].label;
 404 }
 405
 406
 407 /***********************************************************************
 408  *           DRIVE_GetSerialNumber
 409  */
 410 DWORD DRIVE_GetSerialNumber( int drive )
 411 {
 412     if (!DRIVE_IsValid( drive )) return 0;
 413     return DOSDrives[drive].serial;
 414 }
 415
 416
 417 /***********************************************************************
 418  *           DRIVE_SetSerialNumber
 419  */
 420 int DRIVE_SetSerialNumber( int drive, DWORD serial )
 421 {
 422     if (!DRIVE_IsValid( drive )) return 0;
 423     DOSDrives[drive].serial = serial;
 424     return 1;
 425 }
 426
 427
 428 /***********************************************************************
 429  *           DRIVE_GetType
 430  */
 431 DRIVETYPE DRIVE_GetType( int drive )
 432 {
 433     if (!DRIVE_IsValid( drive )) return TYPE_INVALID;
 434     return DOSDrives[drive].type;
 435 }
 436
 437
 438 /***********************************************************************
 439  *           DRIVE_GetFlags
 440  */
 441 UINT DRIVE_GetFlags( int drive )
 442 {
 443     if ((drive < 0) || (drive >= MAX_DOS_DRIVES)) return 0;
 444     return DOSDrives[drive].flags;
 445 }
 446
 447
 448 /***********************************************************************
 449  *           DRIVE_Chdir
 450  */
 451 int DRIVE_Chdir( int drive, const char *path )
 452 {
 453     DOS_FULL_NAME full_name;
 454     char buffer[MAX_PATHNAME_LEN];
 455     LPSTR unix_cwd;
 456     BY_HANDLE_FILE_INFORMATION info;
 457     TDB *pTask = (TDB *)GlobalLock16( GetCurrentTask() );
 458
 459     strcpy( buffer, "A:" );
 460     buffer[0] += drive;
 461     TRACE_(dosfs)("(%c:,%s)\n", buffer[0], path );
 462     lstrcpynA( buffer + 2, path, sizeof(buffer) - 2 );
 463
 464     if (!DOSFS_GetFullName( buffer, TRUE, &full_name )) return 0;
 465     if (!FILE_Stat( full_name.long_name, &info )) return 0;
 466     if (!(info.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY))
 467     {
 468         SetLastError( ERROR_FILE_NOT_FOUND );
 469         return 0;
 470     }
 471     unix_cwd = full_name.long_name + strlen( DOSDrives[drive].root );
 472     while (*unix_cwd == '/') unix_cwd++;
 473
 474     TRACE_(dosfs)("(%c:): unix_cwd=%s dos_cwd=%s\n",
 475                    'A' + drive, unix_cwd, full_name.short_name + 3 );
 476
 477     HeapFree( SystemHeap, 0, DOSDrives[drive].dos_cwd );
 478     HeapFree( SystemHeap, 0, DOSDrives[drive].unix_cwd );
 479     DOSDrives[drive].dos_cwd  = HEAP_strdupA( SystemHeap, 0,
 480                                               full_name.short_name + 3 );
 481     DOSDrives[drive].unix_cwd = HEAP_strdupA( SystemHeap, 0, unix_cwd );
 482
 483     if (pTask && (pTask->curdrive & 0x80) &&
 484         ((pTask->curdrive & ~0x80) == drive))
 485     {
 486         lstrcpynA( pTask->curdir, full_name.short_name + 2,
 487                      sizeof(pTask->curdir) );
 488         DRIVE_LastTask = GetCurrentTask();
 489     }
 490     return 1;
 491 }
 492
 493
 494 /***********************************************************************
 495  *           DRIVE_Disable
 496  */
 497 int DRIVE_Disable( int drive  )
 498 {
 499     if ((drive < 0) || (drive >= MAX_DOS_DRIVES) || !DOSDrives[drive].root)
 500     {
 501         SetLastError( ERROR_INVALID_DRIVE );
 502         return 0;
 503     }
 504     DOSDrives[drive].flags |= DRIVE_DISABLED;
 505     return 1;
 506 }
 507
 508
 509 /***********************************************************************
 510  *           DRIVE_Enable
 511  */
 512 int DRIVE_Enable( int drive  )
 513 {
 514     if ((drive < 0) || (drive >= MAX_DOS_DRIVES) || !DOSDrives[drive].root)
 515     {
 516         SetLastError( ERROR_INVALID_DRIVE );
 517         return 0;
 518     }
 519     DOSDrives[drive].flags &= ~DRIVE_DISABLED;
 520     return 1;
 521 }
 522
 523
 524 /***********************************************************************
 525  *           DRIVE_SetLogicalMapping
 526  */
 527 int DRIVE_SetLogicalMapping ( int existing_drive, int new_drive )
 528 {
 529  /* If new_drive is already valid, do nothing and return 0
 530     otherwise, copy DOSDrives[existing_drive] to DOSDrives[new_drive] */
 531
 532     DOSDRIVE *old, *new;
 533
 534     old = DOSDrives + existing_drive;
 535     new = DOSDrives + new_drive;
 536
 537     if ((existing_drive < 0) || (existing_drive >= MAX_DOS_DRIVES) ||
 538         !old->root ||
 539         (new_drive < 0) || (new_drive >= MAX_DOS_DRIVES))
 540     {
 541         SetLastError( ERROR_INVALID_DRIVE );
 542         return 0;
 543     }
 544
 545     if ( new->root )
 546     {
 547         TRACE_(dosfs)("Can\'t map drive %c to drive %c - "
 548                                 "drive %c already exists\n",
 549                         'A' + existing_drive, 'A' + new_drive,
 550                         'A' + new_drive );
 551         /* it is already mapped there, so return success */
 552         if (!strcmp(old->root,new->root))
 553             return 1;
 554         return 0;
 555     }
 556
 557     new->root = HEAP_strdupA( SystemHeap, 0, old->root );
 558     new->dos_cwd = HEAP_strdupA( SystemHeap, 0, old->dos_cwd );
 559     new->unix_cwd = HEAP_strdupA( SystemHeap, 0, old->unix_cwd );
 560     memcpy ( new->label, old->label, 12 );
 561     new->serial = old->serial;
 562     new->type = old->type;
 563     new->flags = old->flags;
 564     new->dev = old->dev;
 565     new->ino = old->ino;
 566
 567     TRACE_(dosfs)("Drive %c is now equal to drive %c\n",
 568                     'A' + new_drive, 'A' + existing_drive );
 569
 570     return 1;
 571 }
 572
 573
 574 /***********************************************************************
 575  *           DRIVE_OpenDevice
 576  *
 577  * Open the drive raw device and return a Unix fd (or -1 on error).
 578  */
 579 int DRIVE_OpenDevice( int drive, int flags )
 580 {
 581     if (!DRIVE_IsValid( drive )) return -1;
 582     return open( DOSDrives[drive].device, flags );
 583 }
 584
 585
 586 /***********************************************************************
 587  *           DRIVE_RawRead
 588  *
 589  * Read raw sectors from a device
 590  */
 591 int DRIVE_RawRead(BYTE drive, DWORD begin, DWORD nr_sect, BYTE *dataptr, BOOL fake_success)
 592 {
 593     int fd;
 594
 595     if ((fd = DRIVE_OpenDevice( drive, O_RDONLY )) != -1)
 596     {
 597         lseek( fd, begin * 512, SEEK_SET );
 598         /* FIXME: check errors */
 599         read( fd, dataptr, nr_sect * 512 );
 600         close( fd );
 601     }
 602     else
 603     {
 604         memset(dataptr, 0, nr_sect * 512);
 605                 if (fake_success)
 606         {
 607                         if (begin == 0 && nr_sect > 1) *(dataptr + 512) = 0xf8;
 608                         if (begin == 1) *dataptr = 0xf8;
 609                 }
 610                 else
 611                 return 0;
 612     }
 613         return 1;
 614 }
 615
 616
 617 /***********************************************************************
 618  *           DRIVE_RawWrite
 619  *
 620  * Write raw sectors to a device
 621  */
 622 int DRIVE_RawWrite(BYTE drive, DWORD begin, DWORD nr_sect, BYTE *dataptr, BOOL fake_success)
 623 {
 624         int fd;
 625
 626     if ((fd = DRIVE_OpenDevice( drive, O_RDONLY )) != -1)
 627     {
 628         lseek( fd, begin * 512, SEEK_SET );
 629         /* FIXME: check errors */
 630         write( fd, dataptr, nr_sect * 512 );
 631         close( fd );
 632     }
 633     else
 634         if (!(fake_success))
 635                 return 0;
 636
 637         return 1;
 638 }
 639
 640
 641 /***********************************************************************
 642  *           DRIVE_GetFreeSpace
 643  */
 644 static int DRIVE_GetFreeSpace( int drive, PULARGE_INTEGER size,
 645                                PULARGE_INTEGER available )
 646 {
 647     struct statfs info;
 648     unsigned long long  bigsize,bigavail=0;
 649
 650     if (!DRIVE_IsValid(drive))
 651     {
 652         SetLastError( ERROR_INVALID_DRIVE );
 653         return 0;
 654     }
 655
 656 /* FIXME: add autoconf check for this */
 657 #if defined(__svr4__) || defined(_SCO_DS) || defined(__sun)
 658     if (statfs( DOSDrives[drive].root, &info, 0, 0) < 0)
 659 #else
 660     if (statfs( DOSDrives[drive].root, &info) < 0)
 661 #endif
 662     {
 663         FILE_SetDosError();
 664         WARN_(dosfs)("cannot do statfs(%s)\n", DOSDrives[drive].root);
 665         return 0;
 666     }
 667
 668     bigsize = (unsigned long long)info.f_bsize
 669       * (unsigned long long)info.f_blocks;
 670 #ifdef STATFS_HAS_BAVAIL
 671     bigavail = (unsigned long long)info.f_bavail
 672       * (unsigned long long)info.f_bsize;
 673 #else
 674 # ifdef STATFS_HAS_BFREE
 675     bigavail = (unsigned long long)info.f_bfree
 676       * (unsigned long long)info.f_bsize;
 677 # else
 678 #  error "statfs has no bfree/bavail member!"
 679 # endif
 680 #endif
 681     size->s.LowPart = (DWORD)bigsize;
 682     size->s.HighPart = (DWORD)(bigsize>>32);
 683     available->s.LowPart = (DWORD)bigavail;
 684     available->s.HighPart = (DWORD)(bigavail>>32);
 685     return 1;
 686 }
 687
 688 /*
 689  *       DRIVE_GetCurrentDirectory
 690  * Returns "X:\\path\\etc\\".
 691  *
 692  * Despite the API description, return required length including the
 693  * terminating null when buffer too small. This is the real behaviour.
 694 */
 695
 696 static UINT DRIVE_GetCurrentDirectory( UINT buflen, LPSTR buf )
 697 {
 698     UINT ret;
 699     const char *s = DRIVE_GetDosCwd( DRIVE_GetCurrentDrive() );
 700
 701     assert(s);
 702     ret = strlen(s) + 3; /* length of WHOLE current directory */
 703     if (ret >= buflen) return ret + 1;
 704     lstrcpynA( buf, "A:\\", MIN( 4, buflen ) );
 705     if (buflen) buf[0] += DRIVE_GetCurrentDrive();
 706     if (buflen > 3) lstrcpynA( buf + 3, s, buflen - 3 );
 707     return ret;
 708 }
 709
 710 /***********************************************************************
 711  *           GetDiskFreeSpace16   (KERNEL.422)
 712  */
 713 BOOL16 WINAPI GetDiskFreeSpace16( LPCSTR root, LPDWORD cluster_sectors,
 714                                   LPDWORD sector_bytes, LPDWORD free_clusters,
 715                                   LPDWORD total_clusters )
 716 {
 717     return GetDiskFreeSpaceA( root, cluster_sectors, sector_bytes,
 718                                 free_clusters, total_clusters );
 719 }
 720
 721
 722 /***********************************************************************
 723  *           GetDiskFreeSpace32A   (KERNEL32.206)
 724  *
 725  * Fails if expression resulting from current drive's dir and "root"
 726  * is not a root dir of the target drive.
 727  *
 728  * UNDOC: setting some LPDWORDs to NULL is perfectly possible
 729  * if the corresponding info is unneeded.
 730  *
 731  * FIXME: needs to support UNC names from Win95 OSR2 on.
 732  *
 733  * Behaviour under Win95a:
 734  * CurrDir     root   result
 735  * "E:\\TEST"  "E:"   FALSE
 736  * "E:\\"      "E:"   TRUE
 737  * "E:\\"      "E"    FALSE
 738  * "E:\\"      "\\"   TRUE
 739  * "E:\\TEST"  "\\"   TRUE
 740  * "E:\\TEST"  ":\\"  FALSE
 741  * "E:\\TEST"  "E:\\" TRUE
 742  * "E:\\TEST"  ""     FALSE
 743  * "E:\\"      ""     FALSE (!)
 744  * "E:\\"      0x0    TRUE
 745  * "E:\\TEST"  0x0    TRUE  (!)
 746  * "E:\\TEST"  "C:"   TRUE  (when CurrDir of "C:" set to "\\")
 747  * "E:\\TEST"  "C:"   FALSE (when CurrDir of "C:" set to "\\TEST")
 748  */
 749 BOOL WINAPI GetDiskFreeSpaceA( LPCSTR root, LPDWORD cluster_sectors,
 750                                    LPDWORD sector_bytes, LPDWORD free_clusters,
 751                                    LPDWORD total_clusters )
 752 {
 753     int drive;
 754     ULARGE_INTEGER size,available;
 755     LPCSTR path;
 756     DWORD cluster_sec;
 757
 758     if ((!root) || (strcmp(root,"\\") == 0))
 759         drive = DRIVE_GetCurrentDrive();
 760     else
 761     if ( (strlen(root) >= 2) && (root[1] == ':')) /* root contains drive tag */
 762     {
 763         drive = toupper(root[0]) - 'A';
 764         path = &root[2];
 765         if (path[0] == '\0')
 766             path = DRIVE_GetDosCwd(drive);
 767         else
 768         if (path[0] == '\\')
 769             path++;
 770         if (strlen(path)) /* oops, we are in a subdir */
 771             return FALSE;
 772     }
 773     else
 774         return FALSE;
 775
 776     if (!DRIVE_GetFreeSpace(drive, &size, &available)) return FALSE;
 777
 778     /* Cap the size and available at 2GB as per specs.  */
 779     if ((size.s.HighPart) ||(size.s.LowPart > 0x7fffffff))
 780         {
 781           size.s.HighPart = 0;
 782           size.s.LowPart = 0x7fffffff;
 783         }
 784     if ((available.s.HighPart) ||(available.s.LowPart > 0x7fffffff))
 785       {
 786         available.s.HighPart =0;
 787         available.s.LowPart = 0x7fffffff;
 788       }
 789     if (DRIVE_GetType(drive)==TYPE_CDROM) {
 790         if (sector_bytes)
 791         *sector_bytes    = 2048;
 792         size.s.LowPart            /= 2048;
 793         available.s.LowPart       /= 2048;
 794     } else {
 795         if (sector_bytes)
 796         *sector_bytes    = 512;
 797         size.s.LowPart            /= 512;
 798         available.s.LowPart       /= 512;
 799     }
 800     /* fixme: probably have to adjust those variables too for CDFS */
 801     cluster_sec = 1;
 802     while (cluster_sec * 65536 < size.s.LowPart) cluster_sec *= 2;
 803
 804     if (cluster_sectors)
 805         *cluster_sectors = cluster_sec;
 806     if (free_clusters)
 807         *free_clusters   = available.s.LowPart / cluster_sec;
 808     if (total_clusters)
 809         *total_clusters  = size.s.LowPart / cluster_sec;
 810     return TRUE;
 811 }
 812
 813
 814 /***********************************************************************
 815  *           GetDiskFreeSpace32W   (KERNEL32.207)
 816  */
 817 BOOL WINAPI GetDiskFreeSpaceW( LPCWSTR root, LPDWORD cluster_sectors,
 818                                    LPDWORD sector_bytes, LPDWORD free_clusters,
 819                                    LPDWORD total_clusters )
 820 {
 821     LPSTR xroot;
 822     BOOL ret;
 823
 824     xroot = HEAP_strdupWtoA( GetProcessHeap(), 0, root);
 825     ret = GetDiskFreeSpaceA( xroot,cluster_sectors, sector_bytes,
 826                                free_clusters, total_clusters );
 827     HeapFree( GetProcessHeap(), 0, xroot );
 828     return ret;
 829 }
 830
 831
 832 /***********************************************************************
 833  *           GetDiskFreeSpaceEx32A   (KERNEL32.871)
 834  *
 835  *  This function is used to aquire the size of the available and
 836  *  total space on a logical volume.
 837  *
 838  * RETURNS
 839  *
 840  *  Zero on failure, nonzero upon success. Use GetLastError to obtain
 841  *  detailed error information.
 842  *
 843  */
 844 BOOL WINAPI GetDiskFreeSpaceExA( LPCSTR root,
 845                                      PULARGE_INTEGER avail,
 846                                      PULARGE_INTEGER total,
 847                                      PULARGE_INTEGER totalfree)
 848 {
 849     int drive;
 850     ULARGE_INTEGER size,available;
 851
 852     if (!root) drive = DRIVE_GetCurrentDrive();
 853     else
 854     {
 855         if ((root[1]) && ((root[1] != ':') || (root[2] != '\\')))
 856         {
 857             FIXME_(dosfs)("there are valid root names which are not supported yet\n");
 858             /* ..like UNC names, for instance. */
 859
 860             WARN_(dosfs)("invalid root '%s'\n", root );
 861             return FALSE;
 862         }
 863         drive = toupper(root[0]) - 'A';
 864     }
 865
 866     if (!DRIVE_GetFreeSpace(drive, &size, &available)) return FALSE;
 867
 868     if (total)
 869     {
 870         total->s.HighPart = size.s.HighPart;
 871         total->s.LowPart = size.s.LowPart ;
 872     }
 873
 874     if (totalfree)
 875     {
 876         totalfree->s.HighPart = available.s.HighPart;
 877         totalfree->s.LowPart = available.s.LowPart ;
 878     }
 879
 880     if (avail)
 881     {
 882         if (FIXME_ON(dosfs))
 883         {
 884             /* On Windows2000, we need to check the disk quota
 885                allocated for the user owning the calling process. We
 886                don't want to be more obtrusive than necessary with the
 887                FIXME messages, so don't print the FIXME unless Wine is
 888                actually masquerading as Windows2000. */
 889
 890             OSVERSIONINFOA ovi;
 891             ovi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOA);
 892             if (GetVersionExA(&ovi))
 893             {
 894               if (ovi.dwPlatformId == VER_PLATFORM_WIN32_NT && ovi.dwMajorVersion > 4)
 895                   FIXME_(dosfs)("no per-user quota support yet\n");
 896             }
 897         }
 898
 899         /* Quick hack, should eventually be fixed to work 100% with
 900            Windows2000 (see comment above). */
 901         avail->s.HighPart = available.s.HighPart;
 902         avail->s.LowPart = available.s.LowPart ;
 903     }
 904
 905     return TRUE;
 906 }
 907
 908 /***********************************************************************
 909  *           GetDiskFreeSpaceEx32W   (KERNEL32.873)
 910  */
 911 BOOL WINAPI GetDiskFreeSpaceExW( LPCWSTR root, PULARGE_INTEGER avail,
 912                                      PULARGE_INTEGER total,
 913                                      PULARGE_INTEGER  totalfree)
 914 {
 915     LPSTR xroot;
 916     BOOL ret;
 917
 918     xroot = HEAP_strdupWtoA( GetProcessHeap(), 0, root);
 919     ret = GetDiskFreeSpaceExA( xroot, avail, total, totalfree);
 920     HeapFree( GetProcessHeap(), 0, xroot );
 921     return ret;
 922 }
 923
 924 /***********************************************************************
 925  *           GetDriveType16   (KERNEL.136)
 926  * This functions returns the drivetype of a drive in Win16.
 927  * Note that it returns DRIVE_REMOTE for CD-ROMs, since MSCDEX uses the
 928  * remote drive API. The returnvalue DRIVE_REMOTE for CD-ROMs has been
 929  * verified on Win3.11 and Windows 95. Some programs rely on it, so don't
 930  * do any pseudo-clever changes.
 931  *
 932  * RETURNS
 933  *      drivetype DRIVE_xxx
 934  */
 935 UINT16 WINAPI GetDriveType16(
 936         UINT16 drive    /* [in] number (NOT letter) of drive */
 937 ) {
 938     TRACE_(dosfs)("(%c:)\n", 'A' + drive );
 939     switch(DRIVE_GetType(drive))
 940     {
 941     case TYPE_FLOPPY:  return DRIVE_REMOVABLE;
 942     case TYPE_HD:      return DRIVE_FIXED;
 943     case TYPE_CDROM:   return DRIVE_REMOTE;
 944     case TYPE_NETWORK: return DRIVE_REMOTE;
 945     case TYPE_INVALID:
 946     default:           return DRIVE_CANNOTDETERMINE;
 947     }
 948 }
 949
 950
 951 /***********************************************************************
 952  *           GetDriveType32A   (KERNEL32.208)
 953  *
 954  * Returns the type of the disk drive specified.  If root is NULL the
 955  * root of the current directory is used.
 956  *
 957  * RETURNS
 958  *
 959  *  Type of drive (from Win32 SDK):
 960  *
 961  *   DRIVE_UNKNOWN     unable to find out anything about the drive
 962  *   DRIVE_NO_ROOT_DIR nonexistand root dir
 963  *   DRIVE_REMOVABLE   the disk can be removed from the machine
 964  *   DRIVE_FIXED       the disk can not be removed from the machine
 965  *   DRIVE_REMOTE      network disk
 966  *   DRIVE_CDROM       CDROM drive
 967  *   DRIVE_RAMDISK     virtual disk in ram
 968  *
 969  *   DRIVE_DOESNOTEXIST    XXX Not valid return value
 970  *   DRIVE_CANNOTDETERMINE XXX Not valid return value
 971  *
 972  * BUGS
 973  *
 974  *  Currently returns DRIVE_DOESNOTEXIST and DRIVE_CANNOTDETERMINE
 975  *  when it really should return DRIVE_NO_ROOT_DIR and DRIVE_UNKNOWN.
 976  *  Why where the former defines used?
 977  *
 978  *  DRIVE_RAMDISK is unsupported.
 979  */
 980 UINT WINAPI GetDriveTypeA(LPCSTR root /* String describing drive */)
 981 {
 982     int drive;
 983     TRACE_(dosfs)("(%s)\n", debugstr_a(root));
 984
 985     if (NULL == root) drive = DRIVE_GetCurrentDrive();
 986     else
 987     {
 988         if ((root[1]) && (root[1] != ':'))
 989         {
 990             WARN_(dosfs)("invalid root '%s'\n", debugstr_a(root));
 991             return DRIVE_DOESNOTEXIST;
 992         }
 993         drive = toupper(root[0]) - 'A';
 994     }
 995     switch(DRIVE_GetType(drive))
 996     {
 997     case TYPE_FLOPPY:  return DRIVE_REMOVABLE;
 998     case TYPE_HD:      return DRIVE_FIXED;
 999     case TYPE_CDROM:   return DRIVE_CDROM;
1000     case TYPE_NETWORK: return DRIVE_REMOTE;
1001     case TYPE_INVALID: return DRIVE_DOESNOTEXIST;
1002     default:           return DRIVE_CANNOTDETERMINE;
1003     }
1004 }
1005
1006
1007 /***********************************************************************
1008  *           GetDriveType32W   (KERNEL32.209)
1009  */
1010 UINT WINAPI GetDriveTypeW( LPCWSTR root )
1011 {
1012     LPSTR xpath = HEAP_strdupWtoA( GetProcessHeap(), 0, root );
1013     UINT ret = GetDriveTypeA( xpath );
1014     HeapFree( GetProcessHeap(), 0, xpath );
1015     return ret;
1016 }
1017
1018
1019 /***********************************************************************
1020  *           GetCurrentDirectory16   (KERNEL.411)
1021  */
1022 UINT16 WINAPI GetCurrentDirectory16( UINT16 buflen, LPSTR buf )
1023 {
1024     return (UINT16)DRIVE_GetCurrentDirectory(buflen, buf);
1025 }
1026
1027
1028 /***********************************************************************
1029  *           GetCurrentDirectory32A   (KERNEL32.196)
1030  */
1031 UINT WINAPI GetCurrentDirectoryA( UINT buflen, LPSTR buf )
1032 {
1033     UINT ret;
1034     char longname[MAX_PATHNAME_LEN];
1035
1036     ret = DRIVE_GetCurrentDirectory(buflen, buf);
1037     GetLongPathNameA(buf, longname, buflen);
1038     lstrcpyA(buf, longname);
1039
1040     return ret;
1041 }
1042
1043 /***********************************************************************
1044  *           GetCurrentDirectory32W   (KERNEL32.197)
1045  */
1046 UINT WINAPI GetCurrentDirectoryW( UINT buflen, LPWSTR buf )
1047 {
1048     LPSTR xpath = HeapAlloc( GetProcessHeap(), 0, buflen+1 );
1049     UINT ret = GetCurrentDirectoryA( buflen, xpath );
1050     lstrcpyAtoW( buf, xpath );
1051     HeapFree( GetProcessHeap(), 0, xpath );
1052     return ret;
1053 }
1054
1055
1056 /***********************************************************************
1057  *           SetCurrentDirectory   (KERNEL.412)
1058  */
1059 BOOL16 WINAPI SetCurrentDirectory16( LPCSTR dir )
1060 {
1061     return SetCurrentDirectoryA( dir );
1062 }
1063
1064
1065 /***********************************************************************
1066  *           SetCurrentDirectory32A   (KERNEL32.479)
1067  */
1068 BOOL WINAPI SetCurrentDirectoryA( LPCSTR dir )
1069 {
1070     int olddrive, drive = DRIVE_GetCurrentDrive();
1071
1072     if (!dir) {
1073         ERR_(file)("(NULL)!\n");
1074         return FALSE;
1075     }
1076     if (dir[0] && (dir[1]==':'))
1077     {
1078         drive = tolower( *dir ) - 'a';
1079         dir += 2;
1080     }
1081
1082     /* WARNING: we need to set the drive before the dir, as DRIVE_Chdir
1083        sets pTask->curdir only if pTask->curdrive is drive */
1084     olddrive = drive; /* in case DRIVE_Chdir fails */
1085     if (!(DRIVE_SetCurrentDrive( drive )))
1086         return FALSE;
1087     /* FIXME: what about empty strings? Add a \\ ? */
1088     if (!DRIVE_Chdir( drive, dir )) {
1089         DRIVE_SetCurrentDrive(olddrive);
1090         return FALSE;
1091     }
1092     return TRUE;
1093 }
1094
1095
1096 /***********************************************************************
1097  *           SetCurrentDirectory32W   (KERNEL32.480)
1098  */
1099 BOOL WINAPI SetCurrentDirectoryW( LPCWSTR dirW )
1100 {
1101     LPSTR dir = HEAP_strdupWtoA( GetProcessHeap(), 0, dirW );
1102     BOOL res = SetCurrentDirectoryA( dir );
1103     HeapFree( GetProcessHeap(), 0, dir );
1104     return res;
1105 }
1106
1107
1108 /***********************************************************************
1109  *           GetLogicalDriveStrings32A   (KERNEL32.231)
1110  */
1111 UINT WINAPI GetLogicalDriveStringsA( UINT len, LPSTR buffer )
1112 {
1113     int drive, count;
1114
1115     for (drive = count = 0; drive < MAX_DOS_DRIVES; drive++)
1116         if (DRIVE_IsValid(drive)) count++;
1117     if ((count * 4) + 1 <= len)
1118     {
1119         LPSTR p = buffer;
1120         for (drive = 0; drive < MAX_DOS_DRIVES; drive++)
1121             if (DRIVE_IsValid(drive))
1122             {
1123                 *p++ = 'a' + drive;
1124                 *p++ = ':';
1125                 *p++ = '\\';
1126                 *p++ = '\0';
1127             }
1128         *p = '\0';
1129        return count * 4;
1130     }
1131     else
1132       return (count * 4) + 1;/* account for terminating null */
1133     /* The API tells about these different return values */
1134 }
1135
1136
1137 /***********************************************************************
1138  *           GetLogicalDriveStrings32W   (KERNEL32.232)
1139  */
1140 UINT WINAPI GetLogicalDriveStringsW( UINT len, LPWSTR buffer )
1141 {
1142     int drive, count;
1143
1144     for (drive = count = 0; drive < MAX_DOS_DRIVES; drive++)
1145         if (DRIVE_IsValid(drive)) count++;
1146     if (count * 4 * sizeof(WCHAR) <= len)
1147     {
1148         LPWSTR p = buffer;
1149         for (drive = 0; drive < MAX_DOS_DRIVES; drive++)
1150             if (DRIVE_IsValid(drive))
1151             {
1152                 *p++ = (WCHAR)('a' + drive);
1153                 *p++ = (WCHAR)':';
1154                 *p++ = (WCHAR)'\\';
1155                 *p++ = (WCHAR)'\0';
1156             }
1157         *p = (WCHAR)'\0';
1158     }
1159     return count * 4 * sizeof(WCHAR);
1160 }
1161
1162
1163 /***********************************************************************
1164  *           GetLogicalDrives   (KERNEL32.233)
1165  */
1166 DWORD WINAPI GetLogicalDrives(void)
1167 {
1168     DWORD ret = 0;
1169     int drive;
1170
1171     for (drive = 0; drive < MAX_DOS_DRIVES; drive++)
1172         if (DRIVE_IsValid(drive)) ret |= (1 << drive);
1173     return ret;
1174 }
1175
1176
1177 /***********************************************************************
1178  *           GetVolumeInformation32A   (KERNEL32.309)
1179  */
1180 BOOL WINAPI GetVolumeInformationA( LPCSTR root, LPSTR label,
1181                                        DWORD label_len, DWORD *serial,
1182                                        DWORD *filename_len, DWORD *flags,
1183                                        LPSTR fsname, DWORD fsname_len )
1184 {
1185     int drive;
1186     char *cp;
1187
1188     /* FIXME, SetLastErrors missing */
1189
1190     if (!root) drive = DRIVE_GetCurrentDrive();
1191     else
1192     {
1193         if ((root[1]) && (root[1] != ':'))
1194         {
1195             WARN_(dosfs)("invalid root '%s'\n",root);
1196             return FALSE;
1197         }
1198         drive = toupper(root[0]) - 'A';
1199     }
1200     if (!DRIVE_IsValid( drive )) return FALSE;
1201     if (label)
1202     {
1203        lstrcpynA( label, DRIVE_GetLabel(drive), label_len );
1204        for (cp = label; *cp; cp++);
1205        while (cp != label && *(cp-1) == ' ') cp--;
1206        *cp = '\0';
1207     }
1208     if (serial) *serial = DRIVE_GetSerialNumber(drive);
1209
1210     /* Set the filesystem information */
1211     /* Note: we only emulate a FAT fs at the present */
1212
1213     if (filename_len) {
1214         if (DOSDrives[drive].flags & DRIVE_SHORT_NAMES)
1215             *filename_len = 12;
1216         else
1217             *filename_len = 255;
1218     }
1219     if (flags)
1220       {
1221        *flags=0;
1222        if (DOSDrives[drive].flags & DRIVE_CASE_SENSITIVE)
1223          *flags|=FS_CASE_SENSITIVE;
1224        if (DOSDrives[drive].flags & DRIVE_CASE_PRESERVING)
1225          *flags|=FS_CASE_IS_PRESERVED ;
1226       }
1227     if (fsname) {
1228         /* Diablo checks that return code ... */
1229         if (DRIVE_GetType(drive)==TYPE_CDROM)
1230             lstrcpynA( fsname, "CDFS", fsname_len );
1231         else
1232             lstrcpynA( fsname, "FAT", fsname_len );
1233     }
1234     return TRUE;
1235 }
1236
1237
1238 /***********************************************************************
1239  *           GetVolumeInformation32W   (KERNEL32.310)
1240  */
1241 BOOL WINAPI GetVolumeInformationW( LPCWSTR root, LPWSTR label,
1242                                        DWORD label_len, DWORD *serial,
1243                                        DWORD *filename_len, DWORD *flags,
1244                                        LPWSTR fsname, DWORD fsname_len )
1245 {
1246     LPSTR xroot    = HEAP_strdupWtoA( GetProcessHeap(), 0, root );
1247     LPSTR xvolname = label ? HeapAlloc(GetProcessHeap(),0,label_len) : NULL;
1248     LPSTR xfsname  = fsname ? HeapAlloc(GetProcessHeap(),0,fsname_len) : NULL;
1249     BOOL ret = GetVolumeInformationA( xroot, xvolname, label_len, serial,
1250                                           filename_len, flags, xfsname,
1251                                           fsname_len );
1252     if (ret)
1253     {
1254         if (label) lstrcpyAtoW( label, xvolname );
1255         if (fsname) lstrcpyAtoW( fsname, xfsname );
1256     }
1257     HeapFree( GetProcessHeap(), 0, xroot );
1258     HeapFree( GetProcessHeap(), 0, xvolname );
1259     HeapFree( GetProcessHeap(), 0, xfsname );
1260     return ret;
1261 }
1262
1263 /***********************************************************************
1264  *           SetVolumeLabelA   (KERNEL32.675)
1265  */
1266 BOOL WINAPI SetVolumeLabelA(LPCSTR rootpath,LPCSTR volname)
1267 {
1268         FIXME_(dosfs)("(%s,%s),stub!\n",rootpath,volname);
1269         return TRUE;
1270 }
1271
1272 /***********************************************************************
1273  *           SetVolumeLabelW   (KERNEL32.676)
1274  */
1275 BOOL WINAPI SetVolumeLabelW(LPCWSTR rootpath,LPCWSTR volname)
1276 {
1277     LPSTR xroot, xvol;
1278     BOOL ret;
1279
1280     xroot = HEAP_strdupWtoA( GetProcessHeap(), 0, rootpath);
1281     xvol = HEAP_strdupWtoA( GetProcessHeap(), 0, volname);
1282     ret = SetVolumeLabelA( xroot, xvol );
1283     HeapFree( GetProcessHeap(), 0, xroot );
1284     HeapFree( GetProcessHeap(), 0, xvol );
1285     return ret;
1286 }