dlls/ntdll/reg.c

   1 /*
   2  * Registry functions
   3  *
   4  * Copyright (C) 1999 Juergen Schmied
   5  * Copyright (C) 2000 Alexandre Julliard
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  *
  21  * NOTES:
  22  *      HKEY_LOCAL_MACHINE      \\REGISTRY\\MACHINE
  23  *      HKEY_USERS              \\REGISTRY\\USER
  24  *      HKEY_CURRENT_CONFIG     \\REGISTRY\\MACHINE\\SYSTEM\\CURRENTCONTROLSET\\HARDWARE PROFILES\\CURRENT
  25   *     HKEY_CLASSES            \\REGISTRY\\MACHINE\\SOFTWARE\\CLASSES
  26  */
  27
  28 #include "config.h"
  29 #include "wine/port.h"
  30
  31 #include <stdio.h>
  32 #include <string.h>
  33
  34 #include "winerror.h"
  35 #include "wine/unicode.h"
  36 #include "wine/library.h"
  37 #include "wine/server.h"
  38 #include "winternl.h"
  39 #include "ntdll_misc.h"
  40 #include "wine/debug.h"
  41
  42 WINE_DEFAULT_DEBUG_CHANNEL(reg);
  43
  44 /* maximum length of a key/value name in bytes (without terminating null) */
  45 #define MAX_NAME_LENGTH ((MAX_PATH-1) * sizeof(WCHAR))
  46
  47
  48 /******************************************************************************
  49  * NtCreateKey [NTDLL.@]
  50  * ZwCreateKey [NTDLL.@]
  51  */
  52 NTSTATUS WINAPI NtCreateKey( PHKEY retkey, ACCESS_MASK access, const OBJECT_ATTRIBUTES *attr,
  53                              ULONG TitleIndex, const UNICODE_STRING *class, ULONG options,
  54                              PULONG dispos )
  55 {
  56     NTSTATUS ret;
  57
  58     TRACE( "(%p,%s,%s,%lx,%lx,%p)\n", attr->RootDirectory, debugstr_us(attr->ObjectName),
  59            debugstr_us(class), options, access, retkey );
  60
  61     if (attr->ObjectName->Length > MAX_NAME_LENGTH) return STATUS_BUFFER_OVERFLOW;
  62     if (!retkey) return STATUS_INVALID_PARAMETER;
  63
  64     SERVER_START_REQ( create_key )
  65     {
  66         req->parent  = attr->RootDirectory;
  67         req->access  = access;
  68         req->options = options;
  69         req->modif   = 0;
  70         req->namelen = attr->ObjectName->Length;
  71         wine_server_add_data( req, attr->ObjectName->Buffer, attr->ObjectName->Length );
  72         if (class) wine_server_add_data( req, class->Buffer, class->Length );
  73         if (!(ret = wine_server_call( req )))
  74         {
  75             *retkey = reply->hkey;
  76             if (dispos) *dispos = reply->created ? REG_CREATED_NEW_KEY : REG_OPENED_EXISTING_KEY;
  77         }
  78     }
  79     SERVER_END_REQ;
  80     TRACE("<- %p\n", *retkey);
  81     return ret;
  82 }
  83
  84
  85 /******************************************************************************
  86  * NtOpenKey [NTDLL.@]
  87  * ZwOpenKey [NTDLL.@]
  88  *
  89  *   OUT        PHKEY                   retkey (returns 0 when failure)
  90  *   IN         ACCESS_MASK             access
  91  *   IN         POBJECT_ATTRIBUTES      attr
  92  */
  93 NTSTATUS WINAPI NtOpenKey( PHKEY retkey, ACCESS_MASK access, const OBJECT_ATTRIBUTES *attr )
  94 {
  95     NTSTATUS ret;
  96     DWORD len = attr->ObjectName->Length;
  97
  98     TRACE( "(%p,%s,%lx,%p)\n", attr->RootDirectory,
  99            debugstr_us(attr->ObjectName), access, retkey );
 100
 101     if (len > MAX_NAME_LENGTH) return STATUS_BUFFER_OVERFLOW;
 102     if (!retkey) return STATUS_INVALID_PARAMETER;
 103
 104     SERVER_START_REQ( open_key )
 105     {
 106         req->parent = attr->RootDirectory;
 107         req->access = access;
 108         wine_server_add_data( req, attr->ObjectName->Buffer, len );
 109         ret = wine_server_call( req );
 110         *retkey = reply->hkey;
 111     }
 112     SERVER_END_REQ;
 113     TRACE("<- %p\n", *retkey);
 114     return ret;
 115 }
 116
 117
 118 /******************************************************************************
 119  * NtDeleteKey [NTDLL.@]
 120  * ZwDeleteKey [NTDLL.@]
 121  */
 122 NTSTATUS WINAPI NtDeleteKey( HKEY hkey )
 123 {
 124     NTSTATUS ret;
 125
 126     TRACE( "(%p)\n", hkey );
 127
 128     SERVER_START_REQ( delete_key )
 129     {
 130         req->hkey = hkey;
 131         ret = wine_server_call( req );
 132     }
 133     SERVER_END_REQ;
 134     return ret;
 135 }
 136
 137
 138 /******************************************************************************
 139  * NtDeleteValueKey [NTDLL.@]
 140  * ZwDeleteValueKey [NTDLL.@]
 141  */
 142 NTSTATUS WINAPI NtDeleteValueKey( HKEY hkey, const UNICODE_STRING *name )
 143 {
 144     NTSTATUS ret;
 145
 146     TRACE( "(%p,%s)\n", hkey, debugstr_us(name) );
 147     if (name->Length > MAX_NAME_LENGTH) return STATUS_BUFFER_OVERFLOW;
 148
 149     SERVER_START_REQ( delete_key_value )
 150     {
 151         req->hkey = hkey;
 152         wine_server_add_data( req, name->Buffer, name->Length );
 153         ret = wine_server_call( req );
 154     }
 155     SERVER_END_REQ;
 156     return ret;
 157 }
 158
 159
 160 /******************************************************************************
 161  *     enumerate_key
 162  *
 163  * Implementation of NtQueryKey and NtEnumerateKey
 164  */
 165 static NTSTATUS enumerate_key( HKEY handle, int index, KEY_INFORMATION_CLASS info_class,
 166                                void *info, DWORD length, DWORD *result_len )
 167
 168 {
 169     NTSTATUS ret;
 170     void *data_ptr;
 171     size_t fixed_size;
 172
 173     switch(info_class)
 174     {
 175     case KeyBasicInformation: data_ptr = ((KEY_BASIC_INFORMATION *)info)->Name; break;
 176     case KeyFullInformation:  data_ptr = ((KEY_FULL_INFORMATION *)info)->Class; break;
 177     case KeyNodeInformation:  data_ptr = ((KEY_NODE_INFORMATION *)info)->Name;  break;
 178     default:
 179         FIXME( "Information class %d not implemented\n", info_class );
 180         return STATUS_INVALID_PARAMETER;
 181     }
 182     fixed_size = (char *)data_ptr - (char *)info;
 183
 184     SERVER_START_REQ( enum_key )
 185     {
 186         req->hkey       = handle;
 187         req->index      = index;
 188         req->info_class = info_class;
 189         if (length > fixed_size) wine_server_set_reply( req, data_ptr, length - fixed_size );
 190         if (!(ret = wine_server_call( req )))
 191         {
 192             LARGE_INTEGER modif;
 193
 194             RtlSecondsSince1970ToTime( reply->modif, &modif );
 195
 196             switch(info_class)
 197             {
 198             case KeyBasicInformation:
 199                 {
 200                     KEY_BASIC_INFORMATION keyinfo;
 201                     fixed_size = (char *)keyinfo.Name - (char *)&keyinfo;
 202                     keyinfo.LastWriteTime = modif;
 203                     keyinfo.TitleIndex = 0;
 204                     keyinfo.NameLength = reply->namelen;
 205                     memcpy( info, &keyinfo, min( length, fixed_size ) );
 206                 }
 207                 break;
 208             case KeyFullInformation:
 209                 {
 210                     KEY_FULL_INFORMATION keyinfo;
 211                     fixed_size = (char *)keyinfo.Class - (char *)&keyinfo;
 212                     keyinfo.LastWriteTime = modif;
 213                     keyinfo.TitleIndex = 0;
 214                     keyinfo.ClassLength = wine_server_reply_size(reply);
 215                     keyinfo.ClassOffset = keyinfo.ClassLength ? fixed_size : -1;
 216                     keyinfo.SubKeys = reply->subkeys;
 217                     keyinfo.MaxNameLen = reply->max_subkey;
 218                     keyinfo.MaxClassLen = reply->max_class;
 219                     keyinfo.Values = reply->values;
 220                     keyinfo.MaxValueNameLen = reply->max_value;
 221                     keyinfo.MaxValueDataLen = reply->max_data;
 222                     memcpy( info, &keyinfo, min( length, fixed_size ) );
 223                 }
 224                 break;
 225             case KeyNodeInformation:
 226                 {
 227                     KEY_NODE_INFORMATION keyinfo;
 228                     fixed_size = (char *)keyinfo.Name - (char *)&keyinfo;
 229                     keyinfo.LastWriteTime = modif;
 230                     keyinfo.TitleIndex = 0;
 231                     keyinfo.ClassLength = max( 0, wine_server_reply_size(reply) - reply->namelen );
 232                     keyinfo.ClassOffset = keyinfo.ClassLength ? fixed_size + reply->namelen : -1;
 233                     keyinfo.NameLength = reply->namelen;
 234                     memcpy( info, &keyinfo, min( length, fixed_size ) );
 235                 }
 236                 break;
 237             }
 238             *result_len = fixed_size + reply->total;
 239             if (length < *result_len) ret = STATUS_BUFFER_OVERFLOW;
 240         }
 241     }
 242     SERVER_END_REQ;
 243     return ret;
 244 }
 245
 246
 247
 248 /******************************************************************************
 249  * NtEnumerateKey [NTDLL.@]
 250  * ZwEnumerateKey [NTDLL.@]
 251  *
 252  * NOTES
 253  *  the name copied into the buffer is NOT 0-terminated
 254  */
 255 NTSTATUS WINAPI NtEnumerateKey( HKEY handle, ULONG index, KEY_INFORMATION_CLASS info_class,
 256                                 void *info, DWORD length, DWORD *result_len )
 257 {
 258     /* -1 means query key, so avoid it here */
 259     if (index == (ULONG)-1) return STATUS_NO_MORE_ENTRIES;
 260     return enumerate_key( handle, index, info_class, info, length, result_len );
 261 }
 262
 263
 264 /******************************************************************************
 265  * NtQueryKey [NTDLL.@]
 266  * ZwQueryKey [NTDLL.@]
 267  */
 268 NTSTATUS WINAPI NtQueryKey( HKEY handle, KEY_INFORMATION_CLASS info_class,
 269                             void *info, DWORD length, DWORD *result_len )
 270 {
 271     return enumerate_key( handle, -1, info_class, info, length, result_len );
 272 }
 273
 274
 275 /* fill the key value info structure for a specific info class */
 276 static void copy_key_value_info( KEY_VALUE_INFORMATION_CLASS info_class, void *info,
 277                                  DWORD length, int type, int name_len, int data_len )
 278 {
 279     switch(info_class)
 280     {
 281     case KeyValueBasicInformation:
 282         {
 283             KEY_VALUE_BASIC_INFORMATION keyinfo;
 284             keyinfo.TitleIndex = 0;
 285             keyinfo.Type       = type;
 286             keyinfo.NameLength = name_len;
 287             length = min( length, (char *)keyinfo.Name - (char *)&keyinfo );
 288             memcpy( info, &keyinfo, length );
 289             break;
 290         }
 291     case KeyValueFullInformation:
 292         {
 293             KEY_VALUE_FULL_INFORMATION keyinfo;
 294             keyinfo.TitleIndex = 0;
 295             keyinfo.Type       = type;
 296             keyinfo.DataOffset = (char *)keyinfo.Name - (char *)&keyinfo + name_len;
 297             keyinfo.DataLength = data_len;
 298             keyinfo.NameLength = name_len;
 299             length = min( length, (char *)keyinfo.Name - (char *)&keyinfo );
 300             memcpy( info, &keyinfo, length );
 301             break;
 302         }
 303     case KeyValuePartialInformation:
 304         {
 305             KEY_VALUE_PARTIAL_INFORMATION keyinfo;
 306             keyinfo.TitleIndex = 0;
 307             keyinfo.Type       = type;
 308             keyinfo.DataLength = data_len;
 309             length = min( length, (char *)keyinfo.Data - (char *)&keyinfo );
 310             memcpy( info, &keyinfo, length );
 311             break;
 312         }
 313     default:
 314         break;
 315     }
 316 }
 317
 318
 319 /******************************************************************************
 320  *  NtEnumerateValueKey [NTDLL.@]
 321  *  ZwEnumerateValueKey [NTDLL.@]
 322  */
 323 NTSTATUS WINAPI NtEnumerateValueKey( HKEY handle, ULONG index,
 324                                      KEY_VALUE_INFORMATION_CLASS info_class,
 325                                      void *info, DWORD length, DWORD *result_len )
 326 {
 327     NTSTATUS ret;
 328     void *ptr;
 329     size_t fixed_size;
 330
 331     TRACE( "(%p,%lu,%d,%p,%ld)\n", handle, index, info_class, info, length );
 332
 333     /* compute the length we want to retrieve */
 334     switch(info_class)
 335     {
 336     case KeyValueBasicInformation:   ptr = ((KEY_VALUE_BASIC_INFORMATION *)info)->Name; break;
 337     case KeyValueFullInformation:    ptr = ((KEY_VALUE_FULL_INFORMATION *)info)->Name; break;
 338     case KeyValuePartialInformation: ptr = ((KEY_VALUE_PARTIAL_INFORMATION *)info)->Data; break;
 339     default:
 340         FIXME( "Information class %d not implemented\n", info_class );
 341         return STATUS_INVALID_PARAMETER;
 342     }
 343     fixed_size = (char *)ptr - (char *)info;
 344
 345     SERVER_START_REQ( enum_key_value )
 346     {
 347         req->hkey       = handle;
 348         req->index      = index;
 349         req->info_class = info_class;
 350         if (length > fixed_size) wine_server_set_reply( req, ptr, length - fixed_size );
 351         if (!(ret = wine_server_call( req )))
 352         {
 353             copy_key_value_info( info_class, info, length, reply->type, reply->namelen,
 354                                  wine_server_reply_size(reply) - reply->namelen );
 355             *result_len = fixed_size + reply->total;
 356             if (length < *result_len) ret = STATUS_BUFFER_OVERFLOW;
 357         }
 358     }
 359     SERVER_END_REQ;
 360     return ret;
 361 }
 362
 363
 364 /******************************************************************************
 365  * NtQueryValueKey [NTDLL.@]
 366  * ZwQueryValueKey [NTDLL.@]
 367  *
 368  * NOTES
 369  *  the name in the KeyValueInformation is never set
 370  */
 371 NTSTATUS WINAPI NtQueryValueKey( HKEY handle, const UNICODE_STRING *name,
 372                                  KEY_VALUE_INFORMATION_CLASS info_class,
 373                                  void *info, DWORD length, DWORD *result_len )
 374 {
 375     NTSTATUS ret;
 376     UCHAR *data_ptr;
 377     int fixed_size = 0;
 378
 379     TRACE( "(%p,%s,%d,%p,%ld)\n", handle, debugstr_us(name), info_class, info, length );
 380
 381     if (name->Length > MAX_NAME_LENGTH) return STATUS_BUFFER_OVERFLOW;
 382
 383     /* compute the length we want to retrieve */
 384     switch(info_class)
 385     {
 386     case KeyValueBasicInformation:
 387         fixed_size = (char *)((KEY_VALUE_BASIC_INFORMATION *)info)->Name - (char *)info;
 388         data_ptr = NULL;
 389         break;
 390     case KeyValueFullInformation:
 391         data_ptr = (UCHAR *)((KEY_VALUE_FULL_INFORMATION *)info)->Name;
 392         fixed_size = (char *)data_ptr - (char *)info;
 393         break;
 394     case KeyValuePartialInformation:
 395         data_ptr = ((KEY_VALUE_PARTIAL_INFORMATION *)info)->Data;
 396         fixed_size = (char *)data_ptr - (char *)info;
 397         break;
 398     default:
 399         FIXME( "Information class %d not implemented\n", info_class );
 400         return STATUS_INVALID_PARAMETER;
 401     }
 402
 403     SERVER_START_REQ( get_key_value )
 404     {
 405         req->hkey = handle;
 406         wine_server_add_data( req, name->Buffer, name->Length );
 407         if (length > fixed_size) wine_server_set_reply( req, data_ptr, length - fixed_size );
 408         if (!(ret = wine_server_call( req )))
 409         {
 410             copy_key_value_info( info_class, info, length, reply->type,
 411                                  0, wine_server_reply_size(reply) );
 412             *result_len = fixed_size + reply->total;
 413             if (length < *result_len) ret = STATUS_BUFFER_OVERFLOW;
 414         }
 415     }
 416     SERVER_END_REQ;
 417     return ret;
 418 }
 419
 420
 421 /******************************************************************************
 422  *  NtFlushKey  [NTDLL.@]
 423  *  ZwFlushKey  [NTDLL.@]
 424  */
 425 NTSTATUS WINAPI NtFlushKey(HKEY KeyHandle)
 426 {
 427         FIXME("(%p) stub!\n",
 428         KeyHandle);
 429         return 1;
 430 }
 431
 432 /******************************************************************************
 433  *  NtLoadKey   [NTDLL.@]
 434  *  ZwLoadKey   [NTDLL.@]
 435  */
 436 NTSTATUS WINAPI NtLoadKey( const OBJECT_ATTRIBUTES *attr, const OBJECT_ATTRIBUTES *file )
 437 {
 438     FIXME("stub!\n");
 439     dump_ObjectAttributes(attr);
 440     dump_ObjectAttributes(file);
 441     return STATUS_SUCCESS;
 442 }
 443
 444 /******************************************************************************
 445  *  NtNotifyChangeKey   [NTDLL.@]
 446  *  ZwNotifyChangeKey   [NTDLL.@]
 447  */
 448 NTSTATUS WINAPI NtNotifyChangeKey(
 449         IN HKEY KeyHandle,
 450         IN HANDLE Event,
 451         IN PIO_APC_ROUTINE ApcRoutine OPTIONAL,
 452         IN PVOID ApcContext OPTIONAL,
 453         OUT PIO_STATUS_BLOCK IoStatusBlock,
 454         IN ULONG CompletionFilter,
 455         IN BOOLEAN Asynchroneous,
 456         OUT PVOID ChangeBuffer,
 457         IN ULONG Length,
 458         IN BOOLEAN WatchSubtree)
 459 {
 460         FIXME("(%p,%p,%p,%p,%p,0x%08lx, 0x%08x,%p,0x%08lx,0x%08x) stub!\n",
 461         KeyHandle, Event, ApcRoutine, ApcContext, IoStatusBlock, CompletionFilter,
 462         Asynchroneous, ChangeBuffer, Length, WatchSubtree);
 463         return STATUS_SUCCESS;
 464 }
 465
 466 /******************************************************************************
 467  * NtQueryMultipleValueKey [NTDLL]
 468  * ZwQueryMultipleValueKey
 469  */
 470
 471 NTSTATUS WINAPI NtQueryMultipleValueKey(
 472         HKEY KeyHandle,
 473         PVALENTW ListOfValuesToQuery,
 474         ULONG NumberOfItems,
 475         PVOID MultipleValueInformation,
 476         ULONG Length,
 477         PULONG  ReturnLength)
 478 {
 479         FIXME("(%p,%p,0x%08lx,%p,0x%08lx,%p) stub!\n",
 480         KeyHandle, ListOfValuesToQuery, NumberOfItems, MultipleValueInformation,
 481         Length,ReturnLength);
 482         return STATUS_SUCCESS;
 483 }
 484
 485 /******************************************************************************
 486  * NtReplaceKey [NTDLL.@]
 487  * ZwReplaceKey [NTDLL.@]
 488  */
 489 NTSTATUS WINAPI NtReplaceKey(
 490         IN POBJECT_ATTRIBUTES ObjectAttributes,
 491         IN HKEY Key,
 492         IN POBJECT_ATTRIBUTES ReplacedObjectAttributes)
 493 {
 494         FIXME("(%p),stub!\n", Key);
 495         dump_ObjectAttributes(ObjectAttributes);
 496         dump_ObjectAttributes(ReplacedObjectAttributes);
 497         return STATUS_SUCCESS;
 498 }
 499 /******************************************************************************
 500  * NtRestoreKey [NTDLL.@]
 501  * ZwRestoreKey [NTDLL.@]
 502  */
 503 NTSTATUS WINAPI NtRestoreKey(
 504         HKEY KeyHandle,
 505         HANDLE FileHandle,
 506         ULONG RestoreFlags)
 507 {
 508         FIXME("(%p,%p,0x%08lx) stub\n",
 509         KeyHandle, FileHandle, RestoreFlags);
 510         return STATUS_SUCCESS;
 511 }
 512 /******************************************************************************
 513  * NtSaveKey [NTDLL.@]
 514  * ZwSaveKey [NTDLL.@]
 515  */
 516 NTSTATUS WINAPI NtSaveKey(
 517         IN HKEY KeyHandle,
 518         IN HANDLE FileHandle)
 519 {
 520         FIXME("(%p,%p) stub\n",
 521         KeyHandle, FileHandle);
 522         return STATUS_SUCCESS;
 523 }
 524 /******************************************************************************
 525  * NtSetInformationKey [NTDLL.@]
 526  * ZwSetInformationKey [NTDLL.@]
 527  */
 528 NTSTATUS WINAPI NtSetInformationKey(
 529         IN HKEY KeyHandle,
 530         IN const int KeyInformationClass,
 531         IN PVOID KeyInformation,
 532         IN ULONG KeyInformationLength)
 533 {
 534         FIXME("(%p,0x%08x,%p,0x%08lx) stub\n",
 535         KeyHandle, KeyInformationClass, KeyInformation, KeyInformationLength);
 536         return STATUS_SUCCESS;
 537 }
 538
 539
 540 /******************************************************************************
 541  * NtSetValueKey [NTDLL.@]
 542  * ZwSetValueKey [NTDLL.@]
 543  *
 544  * NOTES
 545  *   win95 does not care about count for REG_SZ and finds out the len by itself (js)
 546  *   NT does definitely care (aj)
 547  */
 548 NTSTATUS WINAPI NtSetValueKey( HKEY hkey, const UNICODE_STRING *name, ULONG TitleIndex,
 549                                ULONG type, const void *data, ULONG count )
 550 {
 551     NTSTATUS ret;
 552
 553     TRACE( "(%p,%s,%ld,%p,%ld)\n", hkey, debugstr_us(name), type, data, count );
 554
 555     if (name->Length > MAX_NAME_LENGTH) return STATUS_BUFFER_OVERFLOW;
 556
 557     SERVER_START_REQ( set_key_value )
 558     {
 559         req->hkey    = hkey;
 560         req->type    = type;
 561         req->namelen = name->Length;
 562         wine_server_add_data( req, name->Buffer, name->Length );
 563         wine_server_add_data( req, data, count );
 564         ret = wine_server_call( req );
 565     }
 566     SERVER_END_REQ;
 567     return ret;
 568 }
 569
 570 /******************************************************************************
 571  * NtUnloadKey [NTDLL.@]
 572  * ZwUnloadKey [NTDLL.@]
 573  */
 574 NTSTATUS WINAPI NtUnloadKey(
 575         IN HKEY KeyHandle)
 576 {
 577         FIXME("(%p) stub\n",
 578         KeyHandle);
 579         return STATUS_SUCCESS;
 580 }
 581
 582 /******************************************************************************
 583  *  RtlFormatCurrentUserKeyPath         [NTDLL.@]
 584  *
 585  * NOTE: under NT the user name part of the path is an SID.
 586  */
 587 NTSTATUS WINAPI RtlFormatCurrentUserKeyPath( IN OUT PUNICODE_STRING KeyPath)
 588 {
 589     const char *user = wine_get_user_name();
 590     char *buffer;
 591     ANSI_STRING AnsiPath;
 592     NTSTATUS ret;
 593
 594     if (!(buffer = RtlAllocateHeap( ntdll_get_process_heap(), 0, strlen(user)+16 )))
 595         return STATUS_NO_MEMORY;
 596
 597     strcpy( buffer, "\\Registry\\User\\" );
 598     strcat( buffer, user );
 599     RtlInitAnsiString( &AnsiPath, buffer );
 600     ret = RtlAnsiStringToUnicodeString(KeyPath, &AnsiPath, TRUE);
 601     RtlFreeAnsiString( &AnsiPath );
 602     return ret;
 603 }
 604
 605 /******************************************************************************
 606  *  RtlOpenCurrentUser          [NTDLL.@]
 607  *
 608  * if we return just HKEY_CURRENT_USER the advapi tries to find a remote
 609  * registry (odd handle) and fails
 610  *
 611  */
 612 DWORD WINAPI RtlOpenCurrentUser(
 613         IN ACCESS_MASK DesiredAccess, /* [in] */
 614         OUT PHKEY KeyHandle)          /* [out] handle of HKEY_CURRENT_USER */
 615 {
 616         OBJECT_ATTRIBUTES ObjectAttributes;
 617         UNICODE_STRING ObjectName;
 618         NTSTATUS ret;
 619
 620         TRACE("(0x%08lx, %p) stub\n",DesiredAccess, KeyHandle);
 621
 622         RtlFormatCurrentUserKeyPath(&ObjectName);
 623         InitializeObjectAttributes(&ObjectAttributes,&ObjectName,OBJ_CASE_INSENSITIVE,0, NULL);
 624         ret = NtCreateKey(KeyHandle, DesiredAccess, &ObjectAttributes, 0, NULL, 0, NULL);
 625         RtlFreeUnicodeString(&ObjectName);
 626         return ret;
 627 }