dlls/kernel/computername.c

   1 /*
   2  * Win32 kernel functions
   3  *
   4  * Copyright 1995 Martin von Loewis and Cameron Heide
   5  * Copyright 1999 Peter Ganten
   6  * Copyright 2002 Martin Wilck
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  */
  22
  23 #include "config.h"
  24
  25 #include <string.h>
  26 #ifdef HAVE_UNISTD_H
  27 # include <unistd.h>
  28 #endif
  29 #include <stdlib.h>
  30 #include <errno.h>
  31 #ifdef HAVE_NETDB_H
  32 #include <netdb.h>
  33 #endif
  34
  35 #include "winbase.h"
  36 #include "winerror.h"
  37 #include "winnls.h"
  38 #include "winternl.h"
  39 #include "wine/unicode.h"
  40 #include "wine/exception.h"
  41 #include "excpt.h"
  42 #include "wine/debug.h"
  43 #include "file.h"
  44
  45 WINE_DEFAULT_DEBUG_CHANNEL(computername);
  46
  47 /* Wine config options */
  48 static const WCHAR NetworkW[] = {'N','e','t','w','o','r','k',0};
  49 static const WCHAR UseDNSW[] = {'U','s','e','D','n','s','C','o','m','p','u','t','e','r','N','a','m','e',0};
  50
  51 /* Registry key and value names */
  52 static const WCHAR ComputerW[] = {'M','a','c','h','i','n','e','\\',
  53                                   'S','y','s','t','e','m','\\',
  54                                   'C','u','r','r','e','n','t','C','o','n','t','r','o','l','S','e','t','\\',
  55                                   'C','o','n','t','r','o','l','\\',
  56                                   'C','o','m','p','u','t','e','r','N','a','m','e',0};
  57 static const WCHAR ActiveComputerNameW[] =   {'A','c','t','i','v','e','C','o','m','p','u','t','e','r','N','a','m','e',0};
  58 static const WCHAR ComputerNameW[] = {'C','o','m','p','u','t','e','r','N','a','m','e',0};
  59
  60 static const char default_ComputerName[] = "WINE";
  61
  62 /* filter for page-fault exceptions */
  63 static WINE_EXCEPTION_FILTER(page_fault)
  64 {
  65     if (GetExceptionCode() == EXCEPTION_ACCESS_VIOLATION)
  66         return EXCEPTION_EXECUTE_HANDLER;
  67     return EXCEPTION_CONTINUE_SEARCH;
  68 }
  69
  70 /***********************************************************************
  71  *                    dns_gethostbyname (INTERNAL)
  72  *
  73  *  From hostname(1):
  74  *  "The FQDN is the name gethostbyname(2) returns for the host name returned by gethostname(2)."
  75  *
  76  *  Wine can use this technique only if the thread-safe gethostbyname_r is available.
  77  */
  78 #ifdef  HAVE_LINUX_GETHOSTBYNAME_R_6
  79 static BOOL dns_gethostbyname ( char *name, int *size )
  80 {
  81     struct hostent* host = NULL;
  82     char *extrabuf;
  83     int ebufsize = 1024;
  84     struct hostent hostentry;
  85     int locerr = ENOBUFS, res = ENOMEM;
  86
  87     extrabuf = HeapAlloc( GetProcessHeap(), 0, ebufsize ) ;
  88
  89     while( extrabuf )
  90     {
  91         res = gethostbyname_r ( name, &hostentry, extrabuf, ebufsize, &host, &locerr );
  92         if( res != ERANGE ) break;
  93         ebufsize *= 2;
  94         extrabuf = HeapReAlloc( GetProcessHeap(), 0, extrabuf, ebufsize ) ;
  95     }
  96
  97     if ( res )
  98         WARN ("Error in gethostbyname_r %d (%d)\n", res, locerr);
  99     else
 100     {
 101         size_t len = strlen ( host->h_name );
 102         if ( len < *size )
 103         {
 104             strcpy ( name, host->h_name );
 105             *size = len;
 106         }
 107         else
 108         {
 109             memcpy ( name, host->h_name, *size );
 110             name[*size] = 0;
 111             SetLastError ( ERROR_MORE_DATA );
 112             res = 1;
 113         }
 114     }
 115
 116     HeapFree( GetProcessHeap(), 0, extrabuf );
 117     return !res;
 118 }
 119 #else
 120 #  define dns_gethostbyname(name,size) 0
 121 #endif
 122
 123 /***********************************************************************
 124  *                     dns_fqdn (INTERNAL)
 125  */
 126 static BOOL dns_fqdn ( char *name, int *size )
 127 {
 128     if ( gethostname ( name, *size + 1 ) )
 129     {
 130         switch( errno )
 131         {
 132         case ENAMETOOLONG:
 133             SetLastError ( ERROR_MORE_DATA );
 134         default:
 135             SetLastError ( ERROR_INVALID_PARAMETER );
 136         }
 137         return FALSE;
 138     }
 139
 140     if ( !dns_gethostbyname ( name, size ) )
 141         *size = strlen ( name );
 142
 143     return TRUE;
 144 }
 145
 146 /***********************************************************************
 147  *                     dns_hostname (INTERNAL)
 148  */
 149 static BOOL dns_hostname ( char *name, int *size )
 150 {
 151     char *c;
 152     if ( ! dns_fqdn ( name, size ) ) return FALSE;
 153     c = strchr ( name, '.' );
 154     if (c)
 155     {
 156         *c = 0;
 157         *size = (c - name);
 158     }
 159     return TRUE;
 160 }
 161
 162 /***********************************************************************
 163  *                     dns_domainname (INTERNAL)
 164  */
 165 static BOOL dns_domainname ( char *name, int *size )
 166 {
 167     char *c;
 168     if ( ! dns_fqdn ( name, size ) ) return FALSE;
 169     c = strchr ( name, '.' );
 170     if (c)
 171     {
 172         c += 1;
 173         *size -= (c - name);
 174         memmove ( name, c, *size + 1 );
 175     }
 176     return TRUE;
 177 }
 178
 179 /***********************************************************************
 180  *                      _init_attr    (INTERNAL)
 181  */
 182 inline static void _init_attr ( OBJECT_ATTRIBUTES *attr, UNICODE_STRING *name )
 183 {
 184     attr->Length = sizeof (OBJECT_ATTRIBUTES);
 185     attr->RootDirectory = 0;
 186     attr->ObjectName = name;
 187     attr->Attributes = 0;
 188     attr->SecurityDescriptor = NULL;
 189     attr->SecurityQualityOfService = NULL;
 190 }
 191
 192 /***********************************************************************
 193  *                      COMPUTERNAME_Init    (INTERNAL)
 194  */
 195 void COMPUTERNAME_Init (void)
 196 {
 197     HKEY hkey = INVALID_HANDLE_VALUE, hsubkey = INVALID_HANDLE_VALUE;
 198     OBJECT_ATTRIBUTES attr;
 199     UNICODE_STRING nameW;
 200     char buf[offsetof( KEY_VALUE_PARTIAL_INFORMATION, Data ) + (MAX_COMPUTERNAME_LENGTH + 1) * sizeof( WCHAR )];
 201     DWORD len = sizeof( buf );
 202     LPWSTR computer_name = (LPWSTR) (buf + offsetof( KEY_VALUE_PARTIAL_INFORMATION, Data ));
 203     NTSTATUS st = STATUS_INTERNAL_ERROR;
 204
 205     TRACE("(void)\n");
 206     _init_attr ( &attr, &nameW );
 207
 208     RtlInitUnicodeString( &nameW, ComputerW );
 209     if ( ( st = NtCreateKey( &hkey, KEY_ALL_ACCESS, &attr, 0, NULL, 0, NULL ) ) != STATUS_SUCCESS )
 210         goto out;
 211
 212     attr.RootDirectory = hkey;
 213     RtlInitUnicodeString( &nameW, ComputerNameW );
 214     if ( (st = NtCreateKey( &hsubkey, KEY_ALL_ACCESS, &attr, 0, NULL, 0, NULL ) ) != STATUS_SUCCESS )
 215         goto out;
 216
 217     st = NtQueryValueKey( hsubkey, &nameW, KeyValuePartialInformation, buf, len, &len );
 218
 219     if ( st == STATUS_OBJECT_NAME_NOT_FOUND ||
 220          ( st == STATUS_SUCCESS && PROFILE_GetWineIniBool( NetworkW, UseDNSW, 1 ) ) )
 221     {
 222         char hbuf[256];
 223         int hlen = sizeof (hbuf);
 224         char *dot;
 225         TRACE( "retrieving Unix host name\n" );
 226         if ( gethostname ( hbuf, hlen ) )
 227         {
 228             strcpy ( hbuf, default_ComputerName );
 229             WARN( "gethostname() error: %d, using host name %s\n", errno, hbuf );
 230         }
 231         hbuf[MAX_COMPUTERNAME_LENGTH] = 0;
 232         dot = strchr ( hbuf, '.' );
 233         if ( dot ) *dot = 0;
 234         hlen = strlen ( hbuf );
 235         len = MultiByteToWideChar( CP_ACP, 0, hbuf, hlen + 1, computer_name, MAX_COMPUTERNAME_LENGTH + 1 )
 236             * sizeof( WCHAR );
 237         if ( NtSetValueKey( hsubkey, &nameW, 0, REG_SZ, computer_name, len ) != STATUS_SUCCESS )
 238             WARN ( "failed to set ComputerName" );
 239     }
 240     else if ( st == STATUS_SUCCESS)
 241     {
 242         len = (len - offsetof( KEY_VALUE_PARTIAL_INFORMATION, Data ));
 243         TRACE( "found in registry\n" );
 244     }
 245     else goto out;
 246
 247     NtClose( hsubkey );
 248     TRACE(" ComputerName: %s (%lu)\n", debugstr_w ( computer_name ), len / sizeof(WCHAR));
 249
 250     RtlInitUnicodeString( &nameW, ActiveComputerNameW );
 251     if ( ( st = NtCreateKey( &hsubkey, KEY_ALL_ACCESS, &attr, 0, NULL, REG_OPTION_VOLATILE, NULL ) )
 252          != STATUS_SUCCESS )
 253         goto out;
 254
 255     RtlInitUnicodeString( &nameW, ComputerNameW );
 256     st = NtSetValueKey( hsubkey, &nameW, 0, REG_SZ, computer_name, len );
 257
 258 out:
 259     NtClose( hsubkey );
 260     NtClose( hkey );
 261
 262     if ( st == STATUS_SUCCESS )
 263         TRACE( "success\n" );
 264     else
 265     {
 266         WARN( "status trying to set ComputerName: %lx\n", st );
 267         SetLastError ( RtlNtStatusToDosError ( st ) );
 268     }
 269 }
 270
 271
 272 /***********************************************************************
 273  *              GetComputerNameW         (KERNEL32.@)
 274  */
 275 BOOL WINAPI GetComputerNameW(LPWSTR name,LPDWORD size)
 276 {
 277     UNICODE_STRING nameW;
 278     OBJECT_ATTRIBUTES attr;
 279     HKEY hkey = INVALID_HANDLE_VALUE, hsubkey = INVALID_HANDLE_VALUE;
 280     char buf[offsetof( KEY_VALUE_PARTIAL_INFORMATION, Data ) + (MAX_COMPUTERNAME_LENGTH + 1) * sizeof( WCHAR )];
 281     DWORD len = sizeof( buf );
 282     LPWSTR theName = (LPWSTR) (buf + offsetof( KEY_VALUE_PARTIAL_INFORMATION, Data ));
 283     NTSTATUS st = STATUS_INVALID_PARAMETER;
 284
 285     TRACE ("%p %p\n", name, size);
 286
 287     _init_attr ( &attr, &nameW );
 288     RtlInitUnicodeString( &nameW, ComputerW );
 289     if ( ( st = NtOpenKey( &hkey, KEY_ALL_ACCESS, &attr ) ) != STATUS_SUCCESS )
 290         goto out;
 291
 292     attr.RootDirectory = hkey;
 293     RtlInitUnicodeString( &nameW, ActiveComputerNameW );
 294     if ( ( st = NtOpenKey( &hsubkey, KEY_ALL_ACCESS, &attr ) ) != STATUS_SUCCESS )
 295         goto out;
 296
 297     RtlInitUnicodeString( &nameW, ComputerNameW );
 298     if ( ( st = NtQueryValueKey( hsubkey, &nameW, KeyValuePartialInformation, buf, len, &len ) )
 299          != STATUS_SUCCESS )
 300         goto out;
 301
 302     len = (len -offsetof( KEY_VALUE_PARTIAL_INFORMATION, Data )) / sizeof (WCHAR) - 1;
 303     TRACE ("ComputerName is %s (length %lu)\n", debugstr_w ( theName ), len);
 304
 305     __TRY
 306     {
 307         if ( *size < len )
 308         {
 309             memcpy ( name, theName, *size * sizeof (WCHAR) );
 310             name[*size] = 0;
 311             *size = len;
 312             st = STATUS_MORE_ENTRIES;
 313         }
 314         else
 315         {
 316             memcpy ( name, theName, len * sizeof (WCHAR) );
 317             name[len] = 0;
 318             *size = len;
 319             st = STATUS_SUCCESS;
 320         }
 321     }
 322     __EXCEPT(page_fault)
 323     {
 324         st = STATUS_INVALID_PARAMETER;
 325     }
 326     __ENDTRY
 327
 328 out:
 329     NtClose ( hsubkey );
 330     NtClose ( hkey );
 331
 332     if ( st == STATUS_SUCCESS )
 333         return TRUE;
 334     else
 335     {
 336         SetLastError ( RtlNtStatusToDosError ( st ) );
 337         WARN ( "Status %lu reading computer name from registry\n", st );
 338         return FALSE;
 339     }
 340 }
 341
 342 /***********************************************************************
 343  *              GetComputerNameA         (KERNEL32.@)
 344  */
 345 BOOL WINAPI GetComputerNameA(LPSTR name, LPDWORD size)
 346 {
 347     WCHAR nameW[ MAX_COMPUTERNAME_LENGTH + 1 ];
 348     DWORD sizeW = MAX_COMPUTERNAME_LENGTH;
 349     int len;
 350     BOOL ret;
 351
 352     if ( !GetComputerNameW (nameW, &sizeW) ) return FALSE;
 353
 354     len = WideCharToMultiByte ( CP_ACP, 0, nameW, sizeW, NULL, 0, NULL, 0 );
 355     __TRY
 356     {
 357         if ( *size < len )
 358         {
 359             WideCharToMultiByte ( CP_ACP, 0, nameW, sizeW, name, *size, NULL, 0 );
 360             name[*size] = 0;
 361             *size = len;
 362             SetLastError( ERROR_MORE_DATA );
 363             ret = FALSE;
 364         }
 365         else
 366         {
 367             WideCharToMultiByte ( CP_ACP, 0, nameW, sizeW, name, len, NULL, 0 );
 368             name[len] = 0;
 369             *size = len;
 370             ret = TRUE;
 371         }
 372     }
 373     __EXCEPT(page_fault)
 374     {
 375         SetLastError( ERROR_INVALID_PARAMETER );
 376         ret = FALSE;
 377     }
 378     __ENDTRY
 379
 380     return ret;
 381 }
 382
 383 /***********************************************************************
 384  *              GetComputerNameExA         (KERNEL32.@)
 385  */
 386 BOOL WINAPI GetComputerNameExA(COMPUTER_NAME_FORMAT type, LPSTR name, LPDWORD size)
 387 {
 388     char buf[256];
 389     int len = sizeof (buf), ret;
 390     TRACE("%d, %p, %p\n", type, name, size);
 391     switch( type )
 392     {
 393     case ComputerNameNetBIOS:
 394     case ComputerNamePhysicalNetBIOS:
 395         return GetComputerNameA (name, size);
 396     case ComputerNameDnsHostname:
 397     case ComputerNamePhysicalDnsHostname:
 398         ret = dns_hostname (buf, &len);
 399         break;
 400     case ComputerNameDnsDomain:
 401     case ComputerNamePhysicalDnsDomain:
 402         ret = dns_domainname (buf, &len);
 403         break;
 404     case ComputerNameDnsFullyQualified:
 405     case ComputerNamePhysicalDnsFullyQualified:
 406         ret = dns_fqdn (buf, &len);
 407         break;
 408     default:
 409         SetLastError (ERROR_INVALID_PARAMETER);
 410         return FALSE;
 411     }
 412
 413     if ( ret )
 414     {
 415         TRACE ("-> %s (%d)\n", debugstr_a (buf), len);
 416         __TRY
 417         {
 418             if ( *size < len )
 419             {
 420                 memcpy( name, buf, *size );
 421                 name[*size] = 0;
 422                 *size = len;
 423                 SetLastError( ERROR_MORE_DATA );
 424                 ret = FALSE;
 425             }
 426             else
 427             {
 428                 memcpy( name, buf, len );
 429                 name[len] = 0;
 430                 *size = len;
 431                 ret = TRUE;
 432             }
 433         }
 434         __EXCEPT(page_fault)
 435         {
 436             SetLastError( ERROR_INVALID_PARAMETER );
 437             return FALSE;
 438         }
 439         __ENDTRY
 440     }
 441
 442     return ret;
 443 }
 444
 445
 446 /***********************************************************************
 447  *              GetComputerNameExW         (KERNEL32.@)
 448  */
 449 BOOL WINAPI GetComputerNameExW( COMPUTER_NAME_FORMAT type, LPWSTR name, LPDWORD size )
 450 {
 451     char buf[256];
 452     int len = sizeof (buf), ret;
 453
 454     TRACE("%d, %p, %p\n", type, name, size);
 455     switch( type )
 456     {
 457     case ComputerNameNetBIOS:
 458     case ComputerNamePhysicalNetBIOS:
 459         return GetComputerNameW (name, size);
 460     case ComputerNameDnsHostname:
 461     case ComputerNamePhysicalDnsHostname:
 462         ret = dns_hostname (buf, &len);
 463         break;
 464     case ComputerNameDnsDomain:
 465     case ComputerNamePhysicalDnsDomain:
 466         ret = dns_domainname (buf, &len);
 467         break;
 468     case ComputerNameDnsFullyQualified:
 469     case ComputerNamePhysicalDnsFullyQualified:
 470         ret = dns_fqdn (buf, &len);
 471         break;
 472     default:
 473         SetLastError (ERROR_INVALID_PARAMETER);
 474         return FALSE;
 475     }
 476
 477     if ( ret )
 478     {
 479         TRACE ("-> %s (%d)\n", debugstr_a (buf), len);
 480         __TRY
 481         {
 482             int lenW = MultiByteToWideChar( CP_ACP, 0, buf, len, NULL, 0 );
 483             if ( *size < lenW )
 484             {
 485                 MultiByteToWideChar( CP_ACP, 0, buf, len, name, *size );
 486                 name[*size] = 0;
 487                 *size = lenW;
 488                 SetLastError( ERROR_MORE_DATA );
 489                 ret = FALSE;
 490             }
 491             else
 492             {
 493                 MultiByteToWideChar( CP_ACP, 0, buf, len, name, lenW );
 494                 name[lenW] = 0;
 495                 *size = lenW;
 496                 ret = TRUE;
 497             }
 498         }
 499         __EXCEPT(page_fault)
 500         {
 501             SetLastError( ERROR_INVALID_PARAMETER );
 502             return FALSE;
 503         }
 504         __ENDTRY
 505     }
 506
 507     return ret;
 508 }
 509
 510 /******************************************************************************
 511  * netbios_char (INTERNAL)
 512  */
 513 static WCHAR netbios_char ( WCHAR wc )
 514 {
 515     static const WCHAR special[] = {'!','@','#','$','%','^','&','\'',')','(','-','_','{','}','~'};
 516     static const WCHAR deflt = '_';
 517     int i;
 518
 519     if ( isalnumW ( wc ) ) return wc;
 520     for ( i = 0; i < sizeof (special) / sizeof (WCHAR); i++ )
 521         if ( wc == special[i] ) return wc;
 522     return deflt;
 523 }
 524
 525 /******************************************************************************
 526  * SetComputerNameW [KERNEL32.@]
 527  *
 528  * PARAMS
 529  *    lpComputerName [I] Address of new computer name
 530  *
 531  * RETURNS STD
 532  */
 533 BOOL WINAPI SetComputerNameW( LPCWSTR lpComputerName )
 534 {
 535     UNICODE_STRING nameW;
 536     OBJECT_ATTRIBUTES attr;
 537     HKEY hkey = INVALID_HANDLE_VALUE, hsubkey = INVALID_HANDLE_VALUE;
 538     int plen = strlenW ( lpComputerName );
 539     int i;
 540     NTSTATUS st = STATUS_INTERNAL_ERROR;
 541
 542     if ( PROFILE_GetWineIniBool ( NetworkW, UseDNSW, 1 ) )
 543     {
 544         /* This check isn't necessary, but may help debugging problems. */
 545         WARN( "Disabled by Wine Configuration.\n" );
 546         WARN( "Set \"UseDnsComputerName\" = \"N\" in category [Network] to enable.\n" );
 547         SetLastError ( ERROR_ACCESS_DENIED );
 548         return FALSE;
 549     }
 550
 551     TRACE( "%s\n", debugstr_w (lpComputerName) );
 552
 553     /* Check parameter */
 554     if ( plen > MAX_COMPUTERNAME_LENGTH )
 555         goto out;
 556
 557     /* This is NT behaviour. Win 95/98 would coerce characters. */
 558     for ( i = 0; i < plen; i++ )
 559     {
 560         WCHAR wc = lpComputerName[i];
 561         if ( wc != netbios_char( wc ) )
 562             goto out;
 563     }
 564
 565     _init_attr ( &attr, &nameW );
 566
 567     RtlInitUnicodeString (&nameW, ComputerW);
 568     if ( ( st = NtOpenKey( &hkey, KEY_ALL_ACCESS, &attr ) ) != STATUS_SUCCESS )
 569         goto out;
 570     attr.RootDirectory = hkey;
 571     RtlInitUnicodeString( &nameW, ComputerNameW );
 572     if ( ( st = NtOpenKey( &hsubkey, KEY_ALL_ACCESS, &attr ) ) != STATUS_SUCCESS )
 573         goto out;
 574     if ( ( st = NtSetValueKey( hsubkey, &nameW, 0, REG_SZ, lpComputerName, ( plen + 1) * sizeof(WCHAR) ) )
 575          != STATUS_SUCCESS )
 576         goto out;
 577
 578 out:
 579     NtClose( hsubkey );
 580     NtClose( hkey );
 581
 582     if ( st == STATUS_SUCCESS )
 583     {
 584         TRACE( "ComputerName changed\n" );
 585         return TRUE;
 586     }
 587
 588     else
 589     {
 590         SetLastError ( RtlNtStatusToDosError ( st ) );
 591         WARN ( "status %lu\n", st );
 592         return FALSE;
 593     }
 594 }
 595
 596 /******************************************************************************
 597  * SetComputerNameA [KERNEL32.@]
 598  */
 599 BOOL WINAPI SetComputerNameA( LPCSTR lpComputerName )
 600 {
 601     BOOL ret;
 602     DWORD len = MultiByteToWideChar( CP_ACP, 0, lpComputerName, -1, NULL, 0 );
 603     LPWSTR nameW = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) );
 604
 605     MultiByteToWideChar( CP_ACP, 0, lpComputerName, -1, nameW, len );
 606     ret = SetComputerNameW( nameW );
 607     HeapFree( GetProcessHeap(), 0, nameW );
 608     return ret;
 609 }
 610
 611 /******************************************************************************
 612  * SetComputerNameExW [KERNEL32.@]
 613  *
 614  */
 615 BOOL WINAPI SetComputerNameExW( COMPUTER_NAME_FORMAT type, LPCWSTR lpComputerName )
 616 {
 617     TRACE("%d, %s\n", type, debugstr_w (lpComputerName));
 618     switch( type )
 619     {
 620     case ComputerNameNetBIOS:
 621     case ComputerNamePhysicalNetBIOS:
 622         return SetComputerNameW( lpComputerName );
 623     default:
 624         SetLastError( ERROR_ACCESS_DENIED );
 625         return FALSE;
 626     }
 627 }
 628
 629 /******************************************************************************
 630  * SetComputerNameExA [KERNEL32.@]
 631  *
 632  */
 633 BOOL WINAPI SetComputerNameExA( COMPUTER_NAME_FORMAT type, LPCSTR lpComputerName )
 634 {
 635     TRACE( "%d, %s\n", type, debugstr_a (lpComputerName) );
 636     switch( type )
 637     {
 638     case ComputerNameNetBIOS:
 639     case ComputerNamePhysicalNetBIOS:
 640         return SetComputerNameA( lpComputerName );
 641     default:
 642         SetLastError( ERROR_ACCESS_DENIED );
 643         return FALSE;
 644     }
 645 }
 646
 647 /***********************************************************************
 648  *              DnsHostnameToComputerNameA         (KERNEL32.@)
 649  */
 650 BOOL WINAPI DnsHostnameToComputerNameA(LPCSTR Hostname, LPSTR ComputerName,
 651                               LPDWORD nSize)
 652 {
 653     FIXME("(%s, %s, %08lx): stub\n", debugstr_a(Hostname),
 654           debugstr_a(ComputerName), *nSize);
 655     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
 656     return FALSE;
 657 }
 658
 659 /***********************************************************************
 660  *              DnsHostnameToComputerNameW         (KERNEL32.@)
 661  */
 662 BOOL WINAPI DnsHostnameToComputerNameW(LPCWSTR Hostname, LPWSTR ComputerName,
 663                               LPDWORD nSize)
 664 {
 665     FIXME("(%s, %s, %08lx): stub\n", debugstr_w(Hostname),
 666           debugstr_w(ComputerName), *nSize);
 667     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
 668     return FALSE;
 669 }