dlls/ntdll/reg.c

   1 /*
   2  * Registry functions
   3  *
   4  * Copyright (C) 1999 Juergen Schmied
   5  * Copyright (C) 2000 Alexandre Julliard
   6  * Copyright 2005 Ivan Leo Puoti, Laurent Pinchart
   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  * NOTES:
  23  *      HKEY_LOCAL_MACHINE      \\REGISTRY\\MACHINE
  24  *      HKEY_USERS              \\REGISTRY\\USER
  25  *      HKEY_CURRENT_CONFIG     \\REGISTRY\\MACHINE\\SYSTEM\\CURRENTCONTROLSET\\HARDWARE PROFILES\\CURRENT
  26   *     HKEY_CLASSES            \\REGISTRY\\MACHINE\\SOFTWARE\\CLASSES
  27  */
  28
  29 #include "config.h"
  30 #include "wine/port.h"
  31
  32 #include <stdarg.h>
  33 #include <stdio.h>
  34 #include <string.h>
  35
  36 #include "winerror.h"
  37 #include "wine/library.h"
  38 #include "winreg.h"
  39 #include "ntdll_misc.h"
  40 #include "wine/debug.h"
  41 #include "wine/unicode.h"
  42
  43 WINE_DEFAULT_DEBUG_CHANNEL(reg);
  44
  45 /* maximum length of a key/value name in bytes (without terminating null) */
  46 #define MAX_NAME_LENGTH ((MAX_PATH-1) * sizeof(WCHAR))
  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  *  RtlpNtCreateKey [NTDLL.@]
  86  *
  87  *  See NtCreateKey.
  88  */
  89 NTSTATUS WINAPI RtlpNtCreateKey( PHKEY retkey, ACCESS_MASK access, OBJECT_ATTRIBUTES *attr,
  90                                  ULONG TitleIndex, const UNICODE_STRING *class, ULONG options,
  91                                  PULONG dispos )
  92 {
  93     if (attr)
  94         attr->Attributes &= ~(OBJ_PERMANENT|OBJ_EXCLUSIVE);
  95
  96     return NtCreateKey(retkey, access, attr, 0, NULL, 0, dispos);
  97 }
  98
  99 /******************************************************************************
 100  * NtOpenKey [NTDLL.@]
 101  * ZwOpenKey [NTDLL.@]
 102  *
 103  *   OUT        PHKEY                   retkey (returns 0 when failure)
 104  *   IN         ACCESS_MASK             access
 105  *   IN         POBJECT_ATTRIBUTES      attr
 106  */
 107 NTSTATUS WINAPI NtOpenKey( PHKEY retkey, ACCESS_MASK access, const OBJECT_ATTRIBUTES *attr )
 108 {
 109     NTSTATUS ret;
 110     DWORD len = attr->ObjectName->Length;
 111
 112     TRACE( "(%p,%s,%lx,%p)\n", attr->RootDirectory,
 113            debugstr_us(attr->ObjectName), access, retkey );
 114
 115     if (len > MAX_NAME_LENGTH) return STATUS_BUFFER_OVERFLOW;
 116     if (!retkey) return STATUS_INVALID_PARAMETER;
 117
 118     SERVER_START_REQ( open_key )
 119     {
 120         req->parent = attr->RootDirectory;
 121         req->access = access;
 122         wine_server_add_data( req, attr->ObjectName->Buffer, len );
 123         ret = wine_server_call( req );
 124         *retkey = reply->hkey;
 125     }
 126     SERVER_END_REQ;
 127     TRACE("<- %p\n", *retkey);
 128     return ret;
 129 }
 130
 131 /******************************************************************************
 132  * RtlpNtOpenKey [NTDLL.@]
 133  *
 134  * See NtOpenKey.
 135  */
 136 NTSTATUS WINAPI RtlpNtOpenKey( PHKEY retkey, ACCESS_MASK access, OBJECT_ATTRIBUTES *attr )
 137 {
 138     if (attr)
 139         attr->Attributes &= ~(OBJ_PERMANENT|OBJ_EXCLUSIVE);
 140     return NtOpenKey(retkey, access, attr);
 141 }
 142
 143 /******************************************************************************
 144  * NtDeleteKey [NTDLL.@]
 145  * ZwDeleteKey [NTDLL.@]
 146  */
 147 NTSTATUS WINAPI NtDeleteKey( HKEY hkey )
 148 {
 149     NTSTATUS ret;
 150
 151     TRACE( "(%p)\n", hkey );
 152
 153     SERVER_START_REQ( delete_key )
 154     {
 155         req->hkey = hkey;
 156         ret = wine_server_call( req );
 157     }
 158     SERVER_END_REQ;
 159     return ret;
 160 }
 161
 162 /******************************************************************************
 163  * RtlpNtMakeTemporaryKey [NTDLL.@]
 164  *
 165  *  See NtDeleteKey.
 166  */
 167 NTSTATUS WINAPI RtlpNtMakeTemporaryKey( HKEY hkey )
 168 {
 169     return NtDeleteKey(hkey);
 170 }
 171
 172 /******************************************************************************
 173  * NtDeleteValueKey [NTDLL.@]
 174  * ZwDeleteValueKey [NTDLL.@]
 175  */
 176 NTSTATUS WINAPI NtDeleteValueKey( HKEY hkey, const UNICODE_STRING *name )
 177 {
 178     NTSTATUS ret;
 179
 180     TRACE( "(%p,%s)\n", hkey, debugstr_us(name) );
 181     if (name->Length > MAX_NAME_LENGTH) return STATUS_BUFFER_OVERFLOW;
 182
 183     SERVER_START_REQ( delete_key_value )
 184     {
 185         req->hkey = hkey;
 186         wine_server_add_data( req, name->Buffer, name->Length );
 187         ret = wine_server_call( req );
 188     }
 189     SERVER_END_REQ;
 190     return ret;
 191 }
 192
 193
 194 /******************************************************************************
 195  *     enumerate_key
 196  *
 197  * Implementation of NtQueryKey and NtEnumerateKey
 198  */
 199 static NTSTATUS enumerate_key( HKEY handle, int index, KEY_INFORMATION_CLASS info_class,
 200                                void *info, DWORD length, DWORD *result_len )
 201
 202 {
 203     NTSTATUS ret;
 204     void *data_ptr;
 205     size_t fixed_size;
 206
 207     switch(info_class)
 208     {
 209     case KeyBasicInformation: data_ptr = ((KEY_BASIC_INFORMATION *)info)->Name; break;
 210     case KeyFullInformation:  data_ptr = ((KEY_FULL_INFORMATION *)info)->Class; break;
 211     case KeyNodeInformation:  data_ptr = ((KEY_NODE_INFORMATION *)info)->Name;  break;
 212     default:
 213         FIXME( "Information class %d not implemented\n", info_class );
 214         return STATUS_INVALID_PARAMETER;
 215     }
 216     fixed_size = (char *)data_ptr - (char *)info;
 217
 218     SERVER_START_REQ( enum_key )
 219     {
 220         req->hkey       = handle;
 221         req->index      = index;
 222         req->info_class = info_class;
 223         if (length > fixed_size) wine_server_set_reply( req, data_ptr, length - fixed_size );
 224         if (!(ret = wine_server_call( req )))
 225         {
 226             LARGE_INTEGER modif;
 227
 228             RtlSecondsSince1970ToTime( reply->modif, &modif );
 229
 230             switch(info_class)
 231             {
 232             case KeyBasicInformation:
 233                 {
 234                     KEY_BASIC_INFORMATION keyinfo;
 235                     fixed_size = (char *)keyinfo.Name - (char *)&keyinfo;
 236                     keyinfo.LastWriteTime = modif;
 237                     keyinfo.TitleIndex = 0;
 238                     keyinfo.NameLength = reply->namelen;
 239                     memcpy( info, &keyinfo, min( length, fixed_size ) );
 240                 }
 241                 break;
 242             case KeyFullInformation:
 243                 {
 244                     KEY_FULL_INFORMATION keyinfo;
 245                     fixed_size = (char *)keyinfo.Class - (char *)&keyinfo;
 246                     keyinfo.LastWriteTime = modif;
 247                     keyinfo.TitleIndex = 0;
 248                     keyinfo.ClassLength = wine_server_reply_size(reply);
 249                     keyinfo.ClassOffset = keyinfo.ClassLength ? fixed_size : -1;
 250                     keyinfo.SubKeys = reply->subkeys;
 251                     keyinfo.MaxNameLen = reply->max_subkey;
 252                     keyinfo.MaxClassLen = reply->max_class;
 253                     keyinfo.Values = reply->values;
 254                     keyinfo.MaxValueNameLen = reply->max_value;
 255                     keyinfo.MaxValueDataLen = reply->max_data;
 256                     memcpy( info, &keyinfo, min( length, fixed_size ) );
 257                 }
 258                 break;
 259             case KeyNodeInformation:
 260                 {
 261                     KEY_NODE_INFORMATION keyinfo;
 262                     fixed_size = (char *)keyinfo.Name - (char *)&keyinfo;
 263                     keyinfo.LastWriteTime = modif;
 264                     keyinfo.TitleIndex = 0;
 265                     keyinfo.ClassLength = max( 0, wine_server_reply_size(reply) - reply->namelen );
 266                     keyinfo.ClassOffset = keyinfo.ClassLength ? fixed_size + reply->namelen : -1;
 267                     keyinfo.NameLength = reply->namelen;
 268                     memcpy( info, &keyinfo, min( length, fixed_size ) );
 269                 }
 270                 break;
 271             }
 272             *result_len = fixed_size + reply->total;
 273             if (length < *result_len) ret = STATUS_BUFFER_OVERFLOW;
 274         }
 275     }
 276     SERVER_END_REQ;
 277     return ret;
 278 }
 279
 280
 281
 282 /******************************************************************************
 283  * NtEnumerateKey [NTDLL.@]
 284  * ZwEnumerateKey [NTDLL.@]
 285  *
 286  * NOTES
 287  *  the name copied into the buffer is NOT 0-terminated
 288  */
 289 NTSTATUS WINAPI NtEnumerateKey( HKEY handle, ULONG index, KEY_INFORMATION_CLASS info_class,
 290                                 void *info, DWORD length, DWORD *result_len )
 291 {
 292     /* -1 means query key, so avoid it here */
 293     if (index == (ULONG)-1) return STATUS_NO_MORE_ENTRIES;
 294     return enumerate_key( handle, index, info_class, info, length, result_len );
 295 }
 296
 297
 298 /******************************************************************************
 299  * RtlpNtEnumerateSubKey [NTDLL.@]
 300  *
 301  */
 302 NTSTATUS WINAPI RtlpNtEnumerateSubKey( HKEY handle, UNICODE_STRING *out, ULONG index )
 303 {
 304   KEY_BASIC_INFORMATION *info;
 305   DWORD dwLen, dwResultLen;
 306   NTSTATUS ret;
 307
 308   if (out->Length)
 309   {
 310     dwLen = out->Length + sizeof(KEY_BASIC_INFORMATION);
 311     info = (KEY_BASIC_INFORMATION*)RtlAllocateHeap( GetProcessHeap(), 0, dwLen );
 312     if (!info)
 313       return STATUS_NO_MEMORY;
 314   }
 315   else
 316   {
 317     dwLen = 0;
 318     info = NULL;
 319   }
 320
 321   ret = NtEnumerateKey( handle, index, KeyBasicInformation, info, dwLen, &dwResultLen );
 322   dwResultLen -= sizeof(KEY_BASIC_INFORMATION);
 323
 324   if (ret == STATUS_BUFFER_OVERFLOW)
 325     out->Length = dwResultLen;
 326   else if (!ret)
 327   {
 328     if (out->Length < info->NameLength)
 329     {
 330       out->Length = dwResultLen;
 331       ret = STATUS_BUFFER_OVERFLOW;
 332     }
 333     else
 334     {
 335       out->Length = info->NameLength;
 336       memcpy(out->Buffer, info->Name, info->NameLength);
 337     }
 338   }
 339
 340   if (info)
 341     RtlFreeHeap( GetProcessHeap(), 0, info );
 342   return ret;
 343 }
 344
 345 /******************************************************************************
 346  * NtQueryKey [NTDLL.@]
 347  * ZwQueryKey [NTDLL.@]
 348  */
 349 NTSTATUS WINAPI NtQueryKey( HKEY handle, KEY_INFORMATION_CLASS info_class,
 350                             void *info, DWORD length, DWORD *result_len )
 351 {
 352     return enumerate_key( handle, -1, info_class, info, length, result_len );
 353 }
 354
 355
 356 /* fill the key value info structure for a specific info class */
 357 static void copy_key_value_info( KEY_VALUE_INFORMATION_CLASS info_class, void *info,
 358                                  DWORD length, int type, int name_len, int data_len )
 359 {
 360     switch(info_class)
 361     {
 362     case KeyValueBasicInformation:
 363         {
 364             KEY_VALUE_BASIC_INFORMATION keyinfo;
 365             keyinfo.TitleIndex = 0;
 366             keyinfo.Type       = type;
 367             keyinfo.NameLength = name_len;
 368             length = min( length, (char *)keyinfo.Name - (char *)&keyinfo );
 369             memcpy( info, &keyinfo, length );
 370             break;
 371         }
 372     case KeyValueFullInformation:
 373         {
 374             KEY_VALUE_FULL_INFORMATION keyinfo;
 375             keyinfo.TitleIndex = 0;
 376             keyinfo.Type       = type;
 377             keyinfo.DataOffset = (char *)keyinfo.Name - (char *)&keyinfo + name_len;
 378             keyinfo.DataLength = data_len;
 379             keyinfo.NameLength = name_len;
 380             length = min( length, (char *)keyinfo.Name - (char *)&keyinfo );
 381             memcpy( info, &keyinfo, length );
 382             break;
 383         }
 384     case KeyValuePartialInformation:
 385         {
 386             KEY_VALUE_PARTIAL_INFORMATION keyinfo;
 387             keyinfo.TitleIndex = 0;
 388             keyinfo.Type       = type;
 389             keyinfo.DataLength = data_len;
 390             length = min( length, (char *)keyinfo.Data - (char *)&keyinfo );
 391             memcpy( info, &keyinfo, length );
 392             break;
 393         }
 394     default:
 395         break;
 396     }
 397 }
 398
 399
 400 /******************************************************************************
 401  *  NtEnumerateValueKey [NTDLL.@]
 402  *  ZwEnumerateValueKey [NTDLL.@]
 403  */
 404 NTSTATUS WINAPI NtEnumerateValueKey( HKEY handle, ULONG index,
 405                                      KEY_VALUE_INFORMATION_CLASS info_class,
 406                                      void *info, DWORD length, DWORD *result_len )
 407 {
 408     NTSTATUS ret;
 409     void *ptr;
 410     size_t fixed_size;
 411
 412     TRACE( "(%p,%lu,%d,%p,%ld)\n", handle, index, info_class, info, length );
 413
 414     /* compute the length we want to retrieve */
 415     switch(info_class)
 416     {
 417     case KeyValueBasicInformation:   ptr = ((KEY_VALUE_BASIC_INFORMATION *)info)->Name; break;
 418     case KeyValueFullInformation:    ptr = ((KEY_VALUE_FULL_INFORMATION *)info)->Name; break;
 419     case KeyValuePartialInformation: ptr = ((KEY_VALUE_PARTIAL_INFORMATION *)info)->Data; break;
 420     default:
 421         FIXME( "Information class %d not implemented\n", info_class );
 422         return STATUS_INVALID_PARAMETER;
 423     }
 424     fixed_size = (char *)ptr - (char *)info;
 425
 426     SERVER_START_REQ( enum_key_value )
 427     {
 428         req->hkey       = handle;
 429         req->index      = index;
 430         req->info_class = info_class;
 431         if (length > fixed_size) wine_server_set_reply( req, ptr, length - fixed_size );
 432         if (!(ret = wine_server_call( req )))
 433         {
 434             copy_key_value_info( info_class, info, length, reply->type, reply->namelen,
 435                                  wine_server_reply_size(reply) - reply->namelen );
 436             *result_len = fixed_size + reply->total;
 437             if (length < *result_len) ret = STATUS_BUFFER_OVERFLOW;
 438         }
 439     }
 440     SERVER_END_REQ;
 441     return ret;
 442 }
 443
 444
 445 /******************************************************************************
 446  * NtQueryValueKey [NTDLL.@]
 447  * ZwQueryValueKey [NTDLL.@]
 448  *
 449  * NOTES
 450  *  the name in the KeyValueInformation is never set
 451  */
 452 NTSTATUS WINAPI NtQueryValueKey( HKEY handle, const UNICODE_STRING *name,
 453                                  KEY_VALUE_INFORMATION_CLASS info_class,
 454                                  void *info, DWORD length, DWORD *result_len )
 455 {
 456     NTSTATUS ret;
 457     UCHAR *data_ptr;
 458     unsigned int fixed_size = 0;
 459
 460     TRACE( "(%p,%s,%d,%p,%ld)\n", handle, debugstr_us(name), info_class, info, length );
 461
 462     if (name->Length > MAX_NAME_LENGTH) return STATUS_BUFFER_OVERFLOW;
 463
 464     /* compute the length we want to retrieve */
 465     switch(info_class)
 466     {
 467     case KeyValueBasicInformation:
 468         fixed_size = (char *)((KEY_VALUE_BASIC_INFORMATION *)info)->Name - (char *)info;
 469         data_ptr = NULL;
 470         break;
 471     case KeyValueFullInformation:
 472         data_ptr = (UCHAR *)((KEY_VALUE_FULL_INFORMATION *)info)->Name;
 473         fixed_size = (char *)data_ptr - (char *)info;
 474         break;
 475     case KeyValuePartialInformation:
 476         data_ptr = ((KEY_VALUE_PARTIAL_INFORMATION *)info)->Data;
 477         fixed_size = (char *)data_ptr - (char *)info;
 478         break;
 479     default:
 480         FIXME( "Information class %d not implemented\n", info_class );
 481         return STATUS_INVALID_PARAMETER;
 482     }
 483
 484     SERVER_START_REQ( get_key_value )
 485     {
 486         req->hkey = handle;
 487         wine_server_add_data( req, name->Buffer, name->Length );
 488         if (length > fixed_size) wine_server_set_reply( req, data_ptr, length - fixed_size );
 489         if (!(ret = wine_server_call( req )))
 490         {
 491             copy_key_value_info( info_class, info, length, reply->type,
 492                                  0, wine_server_reply_size(reply) );
 493             *result_len = fixed_size + reply->total;
 494             if (length < *result_len) ret = STATUS_BUFFER_OVERFLOW;
 495         }
 496     }
 497     SERVER_END_REQ;
 498     return ret;
 499 }
 500
 501 /******************************************************************************
 502  * RtlpNtQueryValueKey [NTDLL.@]
 503  *
 504  */
 505 NTSTATUS WINAPI RtlpNtQueryValueKey( HKEY handle, ULONG *result_type, PBYTE dest,
 506                                      DWORD *result_len )
 507 {
 508     KEY_VALUE_PARTIAL_INFORMATION *info;
 509     UNICODE_STRING name;
 510     NTSTATUS ret;
 511     DWORD dwResultLen;
 512     DWORD dwLen = sizeof (KEY_VALUE_PARTIAL_INFORMATION) + result_len ? *result_len : 0;
 513
 514     info = (KEY_VALUE_PARTIAL_INFORMATION*)RtlAllocateHeap( GetProcessHeap(), 0, dwLen );
 515     if (!info)
 516       return STATUS_NO_MEMORY;
 517
 518     name.Length = 0;
 519     ret = NtQueryValueKey( handle, &name, KeyValuePartialInformation, info, dwLen, &dwResultLen );
 520
 521     if (!ret || ret == STATUS_BUFFER_OVERFLOW)
 522     {
 523         if (result_len)
 524             *result_len = info->DataLength;
 525
 526         if (result_type)
 527             *result_type = info->Type;
 528
 529         if (ret != STATUS_BUFFER_OVERFLOW)
 530             memcpy( dest, info->Data, info->DataLength );
 531     }
 532
 533     RtlFreeHeap( GetProcessHeap(), 0, info );
 534     return ret;
 535 }
 536
 537 /******************************************************************************
 538  *  NtFlushKey  [NTDLL.@]
 539  *  ZwFlushKey  [NTDLL.@]
 540  */
 541 NTSTATUS WINAPI NtFlushKey(HKEY key)
 542 {
 543     NTSTATUS ret;
 544
 545     TRACE("key=%p\n", key);
 546
 547     SERVER_START_REQ( flush_key )
 548     {
 549         req->hkey = key;
 550         ret = wine_server_call( req );
 551     }
 552     SERVER_END_REQ;
 553
 554     return ret;
 555 }
 556
 557 /******************************************************************************
 558  *  NtLoadKey   [NTDLL.@]
 559  *  ZwLoadKey   [NTDLL.@]
 560  */
 561 NTSTATUS WINAPI NtLoadKey( const OBJECT_ATTRIBUTES *attr, OBJECT_ATTRIBUTES *file )
 562 {
 563     NTSTATUS ret;
 564     HANDLE hive;
 565     IO_STATUS_BLOCK io;
 566
 567     TRACE("(%p,%p)\n", attr, file);
 568
 569     ret = NtCreateFile(&hive, GENERIC_READ, file, &io, NULL, FILE_ATTRIBUTE_NORMAL, 0,
 570                        OPEN_EXISTING, 0, NULL, 0);
 571     if (ret) return ret;
 572
 573     SERVER_START_REQ( load_registry )
 574     {
 575         req->hkey = attr->RootDirectory;
 576         req->file = hive;
 577         wine_server_add_data(req, attr->ObjectName->Buffer, attr->ObjectName->Length);
 578         ret = wine_server_call( req );
 579     }
 580     SERVER_END_REQ;
 581
 582     NtClose(hive);
 583
 584     return ret;
 585 }
 586
 587 /******************************************************************************
 588  *  NtNotifyChangeKey   [NTDLL.@]
 589  *  ZwNotifyChangeKey   [NTDLL.@]
 590  */
 591 NTSTATUS WINAPI NtNotifyChangeKey(
 592         IN HKEY KeyHandle,
 593         IN HANDLE Event,
 594         IN PIO_APC_ROUTINE ApcRoutine OPTIONAL,
 595         IN PVOID ApcContext OPTIONAL,
 596         OUT PIO_STATUS_BLOCK IoStatusBlock,
 597         IN ULONG CompletionFilter,
 598         IN BOOLEAN Asynchronous,
 599         OUT PVOID ChangeBuffer,
 600         IN ULONG Length,
 601         IN BOOLEAN WatchSubtree)
 602 {
 603     NTSTATUS ret;
 604
 605     TRACE("(%p,%p,%p,%p,%p,0x%08lx, 0x%08x,%p,0x%08lx,0x%08x)\n",
 606         KeyHandle, Event, ApcRoutine, ApcContext, IoStatusBlock, CompletionFilter,
 607         Asynchronous, ChangeBuffer, Length, WatchSubtree);
 608
 609     if (ApcRoutine || ApcContext || ChangeBuffer || Length)
 610         FIXME("Unimplemented optional parameter\n");
 611
 612     if (!Asynchronous)
 613     {
 614         OBJECT_ATTRIBUTES attr;
 615         InitializeObjectAttributes( &attr, NULL, 0, NULL, NULL );
 616         ret = NtCreateEvent( &Event, EVENT_ALL_ACCESS, &attr, FALSE, FALSE );
 617         if (ret != STATUS_SUCCESS)
 618             return ret;
 619     }
 620
 621     SERVER_START_REQ( set_registry_notification )
 622     {
 623         req->hkey    = KeyHandle;
 624         req->event   = Event;
 625         req->subtree = WatchSubtree;
 626         req->filter  = CompletionFilter;
 627         ret = wine_server_call( req );
 628     }
 629     SERVER_END_REQ;
 630
 631     if (!Asynchronous)
 632     {
 633         if (ret == STATUS_SUCCESS)
 634             NtWaitForSingleObject( Event, FALSE, NULL );
 635         NtClose( Event );
 636     }
 637
 638     return STATUS_SUCCESS;
 639 }
 640
 641 /******************************************************************************
 642  * NtQueryMultipleValueKey [NTDLL]
 643  * ZwQueryMultipleValueKey
 644  */
 645
 646 NTSTATUS WINAPI NtQueryMultipleValueKey(
 647         HKEY KeyHandle,
 648         PVALENTW ListOfValuesToQuery,
 649         ULONG NumberOfItems,
 650         PVOID MultipleValueInformation,
 651         ULONG Length,
 652         PULONG  ReturnLength)
 653 {
 654         FIXME("(%p,%p,0x%08lx,%p,0x%08lx,%p) stub!\n",
 655         KeyHandle, ListOfValuesToQuery, NumberOfItems, MultipleValueInformation,
 656         Length,ReturnLength);
 657         return STATUS_SUCCESS;
 658 }
 659
 660 /******************************************************************************
 661  * NtReplaceKey [NTDLL.@]
 662  * ZwReplaceKey [NTDLL.@]
 663  */
 664 NTSTATUS WINAPI NtReplaceKey(
 665         IN POBJECT_ATTRIBUTES ObjectAttributes,
 666         IN HKEY Key,
 667         IN POBJECT_ATTRIBUTES ReplacedObjectAttributes)
 668 {
 669         FIXME("(%p),stub!\n", Key);
 670         dump_ObjectAttributes(ObjectAttributes);
 671         dump_ObjectAttributes(ReplacedObjectAttributes);
 672         return STATUS_SUCCESS;
 673 }
 674 /******************************************************************************
 675  * NtRestoreKey [NTDLL.@]
 676  * ZwRestoreKey [NTDLL.@]
 677  */
 678 NTSTATUS WINAPI NtRestoreKey(
 679         HKEY KeyHandle,
 680         HANDLE FileHandle,
 681         ULONG RestoreFlags)
 682 {
 683         FIXME("(%p,%p,0x%08lx) stub\n",
 684         KeyHandle, FileHandle, RestoreFlags);
 685         return STATUS_SUCCESS;
 686 }
 687 /******************************************************************************
 688  * NtSaveKey [NTDLL.@]
 689  * ZwSaveKey [NTDLL.@]
 690  */
 691 NTSTATUS WINAPI NtSaveKey(IN HKEY KeyHandle, IN HANDLE FileHandle)
 692 {
 693     NTSTATUS ret;
 694
 695     TRACE("(%p,%p)\n", KeyHandle, FileHandle);
 696
 697     SERVER_START_REQ( save_registry )
 698     {
 699         req->hkey = KeyHandle;
 700         req->file = FileHandle;
 701         ret = wine_server_call( req );
 702     }
 703     SERVER_END_REQ;
 704
 705     return ret;
 706 }
 707 /******************************************************************************
 708  * NtSetInformationKey [NTDLL.@]
 709  * ZwSetInformationKey [NTDLL.@]
 710  */
 711 NTSTATUS WINAPI NtSetInformationKey(
 712         IN HKEY KeyHandle,
 713         IN const int KeyInformationClass,
 714         IN PVOID KeyInformation,
 715         IN ULONG KeyInformationLength)
 716 {
 717         FIXME("(%p,0x%08x,%p,0x%08lx) stub\n",
 718         KeyHandle, KeyInformationClass, KeyInformation, KeyInformationLength);
 719         return STATUS_SUCCESS;
 720 }
 721
 722
 723 /******************************************************************************
 724  * NtSetValueKey [NTDLL.@]
 725  * ZwSetValueKey [NTDLL.@]
 726  *
 727  * NOTES
 728  *   win95 does not care about count for REG_SZ and finds out the len by itself (js)
 729  *   NT does definitely care (aj)
 730  */
 731 NTSTATUS WINAPI NtSetValueKey( HKEY hkey, const UNICODE_STRING *name, ULONG TitleIndex,
 732                                ULONG type, const void *data, ULONG count )
 733 {
 734     NTSTATUS ret;
 735
 736     TRACE( "(%p,%s,%ld,%p,%ld)\n", hkey, debugstr_us(name), type, data, count );
 737
 738     if (name->Length > MAX_NAME_LENGTH) return STATUS_BUFFER_OVERFLOW;
 739
 740     SERVER_START_REQ( set_key_value )
 741     {
 742         req->hkey    = hkey;
 743         req->type    = type;
 744         req->namelen = name->Length;
 745         wine_server_add_data( req, name->Buffer, name->Length );
 746         wine_server_add_data( req, data, count );
 747         ret = wine_server_call( req );
 748     }
 749     SERVER_END_REQ;
 750     return ret;
 751 }
 752
 753 /******************************************************************************
 754  * RtlpNtSetValueKey [NTDLL.@]
 755  *
 756  */
 757 NTSTATUS WINAPI RtlpNtSetValueKey( HKEY hkey, ULONG type, const void *data,
 758                                    ULONG count )
 759 {
 760     UNICODE_STRING name;
 761
 762     name.Length = 0;
 763     return NtSetValueKey( hkey, &name, 0, type, data, count );
 764 }
 765
 766 /******************************************************************************
 767  * NtUnloadKey [NTDLL.@]
 768  * ZwUnloadKey [NTDLL.@]
 769  */
 770 NTSTATUS WINAPI NtUnloadKey(IN HKEY KeyHandle)
 771 {
 772     NTSTATUS ret;
 773
 774     TRACE("(%p)\n", KeyHandle);
 775
 776     SERVER_START_REQ( unload_registry )
 777     {
 778         req->hkey  = KeyHandle;
 779         ret = wine_server_call(req);
 780     }
 781     SERVER_END_REQ;
 782
 783     return ret;
 784 }
 785
 786 /******************************************************************************
 787  *  RtlFormatCurrentUserKeyPath         [NTDLL.@]
 788  *
 789  * NOTE: under NT the user name part of the path is an SID.
 790  */
 791 NTSTATUS WINAPI RtlFormatCurrentUserKeyPath( IN OUT PUNICODE_STRING KeyPath)
 792 {
 793     static const WCHAR pathW[] = {'\\','R','e','g','i','s','t','r','y','\\','U','s','e','r','\\'};
 794     const char *user = wine_get_user_name();
 795     int len = ntdll_umbstowcs( 0, user, strlen(user)+1, NULL, 0 );
 796
 797     KeyPath->MaximumLength = sizeof(pathW) + len * sizeof(WCHAR);
 798     KeyPath->Length = KeyPath->MaximumLength - sizeof(WCHAR);
 799     if (!(KeyPath->Buffer = RtlAllocateHeap( GetProcessHeap(), 0, KeyPath->MaximumLength )))
 800         return STATUS_NO_MEMORY;
 801     memcpy( KeyPath->Buffer, pathW, sizeof(pathW) );
 802     ntdll_umbstowcs( 0, user, strlen(user)+1, KeyPath->Buffer + sizeof(pathW)/sizeof(WCHAR), len );
 803     return STATUS_SUCCESS;
 804 }
 805
 806 /******************************************************************************
 807  *  RtlOpenCurrentUser          [NTDLL.@]
 808  *
 809  * if we return just HKEY_CURRENT_USER the advapi tries to find a remote
 810  * registry (odd handle) and fails
 811  *
 812  */
 813 DWORD WINAPI RtlOpenCurrentUser(
 814         IN ACCESS_MASK DesiredAccess, /* [in] */
 815         OUT PHKEY KeyHandle)          /* [out] handle of HKEY_CURRENT_USER */
 816 {
 817         OBJECT_ATTRIBUTES ObjectAttributes;
 818         UNICODE_STRING ObjectName;
 819         NTSTATUS ret;
 820
 821         TRACE("(0x%08lx, %p) stub\n",DesiredAccess, KeyHandle);
 822
 823         RtlFormatCurrentUserKeyPath(&ObjectName);
 824         InitializeObjectAttributes(&ObjectAttributes,&ObjectName,OBJ_CASE_INSENSITIVE,0, NULL);
 825         ret = NtCreateKey(KeyHandle, DesiredAccess, &ObjectAttributes, 0, NULL, 0, NULL);
 826         RtlFreeUnicodeString(&ObjectName);
 827         return ret;
 828 }
 829
 830
 831 static NTSTATUS RTL_ReportRegistryValue(PKEY_VALUE_FULL_INFORMATION pInfo,
 832                                         PRTL_QUERY_REGISTRY_TABLE pQuery, PVOID pContext, PVOID pEnvironment)
 833 {
 834     PUNICODE_STRING str;
 835     UNICODE_STRING src, dst;
 836     LONG *bin;
 837     ULONG offset;
 838     PWSTR wstr;
 839     DWORD res;
 840     NTSTATUS status = STATUS_SUCCESS;
 841     ULONG len;
 842     LPWSTR String;
 843     INT count = 0;
 844
 845     if (pInfo == NULL)
 846     {
 847         if (pQuery->Flags & RTL_QUERY_REGISTRY_DIRECT)
 848             return STATUS_INVALID_PARAMETER;
 849         else
 850         {
 851             status = pQuery->QueryRoutine(pQuery->Name, pQuery->DefaultType, pQuery->DefaultData,
 852                                           pQuery->DefaultLength, pContext, pQuery->EntryContext);
 853         }
 854         return status;
 855     }
 856     len = pInfo->DataLength;
 857
 858     if (pQuery->Flags & RTL_QUERY_REGISTRY_DIRECT)
 859     {
 860         str = (PUNICODE_STRING)pQuery->EntryContext;
 861
 862         switch(pInfo->Type)
 863         {
 864         case REG_EXPAND_SZ:
 865             if (!(pQuery->Flags & RTL_QUERY_REGISTRY_NOEXPAND))
 866             {
 867                 RtlInitUnicodeString(&src, (WCHAR*)(((CHAR*)pInfo) + pInfo->DataOffset));
 868                 res = 0;
 869                 dst.MaximumLength = 0;
 870                 RtlExpandEnvironmentStrings_U(pEnvironment, &src, &dst, &res);
 871                 dst.Length = 0;
 872                 dst.MaximumLength = res;
 873                 dst.Buffer = RtlAllocateHeap(GetProcessHeap(), 0, res * sizeof(WCHAR));
 874                 RtlExpandEnvironmentStrings_U(pEnvironment, &src, &dst, &res);
 875                 status = pQuery->QueryRoutine(pQuery->Name, pInfo->Type, dst.Buffer,
 876                                      dst.Length, pContext, pQuery->EntryContext);
 877                 RtlFreeHeap(GetProcessHeap(), 0, dst.Buffer);
 878             }
 879
 880         case REG_SZ:
 881         case REG_LINK:
 882             if (str->Buffer == NULL)
 883                 RtlCreateUnicodeString(str, (WCHAR*)(((CHAR*)pInfo) + pInfo->DataOffset));
 884             else
 885                 RtlAppendUnicodeToString(str, (WCHAR*)(((CHAR*)pInfo) + pInfo->DataOffset));
 886             break;
 887
 888         case REG_MULTI_SZ:
 889             if (!(pQuery->Flags & RTL_QUERY_REGISTRY_NOEXPAND))
 890                 return STATUS_INVALID_PARAMETER;
 891
 892             if (str->Buffer == NULL)
 893             {
 894                 str->Buffer = RtlAllocateHeap(GetProcessHeap(), 0, len);
 895                 str->MaximumLength = len;
 896             }
 897             len = min(len, str->MaximumLength);
 898             memcpy(str->Buffer, ((CHAR*)pInfo) + pInfo->DataOffset, len);
 899             str->Length = len;
 900             break;
 901
 902         default:
 903             bin = (LONG*)pQuery->EntryContext;
 904             if (pInfo->DataLength <= sizeof(ULONG))
 905                 memcpy(bin, ((CHAR*)pInfo) + pInfo->DataOffset,
 906                     pInfo->DataLength);
 907             else
 908             {
 909                 if (bin[0] <= sizeof(ULONG))
 910                 {
 911                     memcpy(&bin[1], ((CHAR*)pInfo) + pInfo->DataOffset,
 912                     min(-bin[0], pInfo->DataLength));
 913                 }
 914                 else
 915                 {
 916                    len = min(bin[0], pInfo->DataLength);
 917                     bin[1] = len;
 918                     bin[2] = pInfo->Type;
 919                     memcpy(&bin[3], ((CHAR*)pInfo) + pInfo->DataOffset, len);
 920                 }
 921            }
 922            break;
 923         }
 924     }
 925     else
 926     {
 927         if((pQuery->Flags & RTL_QUERY_REGISTRY_NOEXPAND) ||
 928            (pInfo->Type != REG_EXPAND_SZ && pInfo->Type != REG_MULTI_SZ))
 929         {
 930             status = pQuery->QueryRoutine(pInfo->Name, pInfo->Type,
 931                 ((CHAR*)pInfo) + pInfo->DataOffset, pInfo->DataLength,
 932                 pContext, pQuery->EntryContext);
 933         }
 934         else if (pInfo->Type == REG_EXPAND_SZ)
 935         {
 936             RtlInitUnicodeString(&src, (WCHAR*)(((CHAR*)pInfo) + pInfo->DataOffset));
 937             res = 0;
 938             dst.MaximumLength = 0;
 939             RtlExpandEnvironmentStrings_U(pEnvironment, &src, &dst, &res);
 940             dst.Length = 0;
 941             dst.MaximumLength = res;
 942             dst.Buffer = RtlAllocateHeap(GetProcessHeap(), 0, res * sizeof(WCHAR));
 943             RtlExpandEnvironmentStrings_U(pEnvironment, &src, &dst, &res);
 944             status = pQuery->QueryRoutine(pQuery->Name, pInfo->Type, dst.Buffer,
 945                                           dst.Length, pContext, pQuery->EntryContext);
 946             RtlFreeHeap(GetProcessHeap(), 0, dst.Buffer);
 947         }
 948         else /* REG_MULTI_SZ */
 949         {
 950             if(pQuery->Flags & RTL_QUERY_REGISTRY_NOEXPAND)
 951             {
 952                 for (offset = 0; offset <= pInfo->DataLength; offset += len + sizeof(WCHAR))
 953                     {
 954                     wstr = (WCHAR*)(((CHAR*)pInfo) + offset);
 955                     len = strlenW(wstr) * sizeof(WCHAR);
 956                     status = pQuery->QueryRoutine(pQuery->Name, pInfo->Type, wstr, len,
 957                         pContext, pQuery->EntryContext);
 958                     if(status != STATUS_SUCCESS && status != STATUS_BUFFER_TOO_SMALL)
 959                         return status;
 960                     }
 961             }
 962             else
 963             {
 964                 while(count<=pInfo->DataLength)
 965                 {
 966                     String = (WCHAR*)(((CHAR*)pInfo) + pInfo->DataOffset)+count;
 967                     count+=strlenW(String)+1;
 968                     RtlInitUnicodeString(&src, (WCHAR*)(((CHAR*)pInfo) + pInfo->DataOffset));
 969                     res = 0;
 970                     dst.MaximumLength = 0;
 971                     RtlExpandEnvironmentStrings_U(pEnvironment, &src, &dst, &res);
 972                     dst.Length = 0;
 973                     dst.MaximumLength = res;
 974                     dst.Buffer = RtlAllocateHeap(GetProcessHeap(), 0, res * sizeof(WCHAR));
 975                     RtlExpandEnvironmentStrings_U(pEnvironment, &src, &dst, &res);
 976                     status = pQuery->QueryRoutine(pQuery->Name, pInfo->Type, dst.Buffer,
 977                                                   dst.Length, pContext, pQuery->EntryContext);
 978                     RtlFreeHeap(GetProcessHeap(), 0, dst.Buffer);
 979                     if(status != STATUS_SUCCESS && status != STATUS_BUFFER_TOO_SMALL)
 980                         return status;
 981                 }
 982             }
 983         }
 984     }
 985     return status;
 986 }
 987
 988
 989 static NTSTATUS RTL_GetKeyHandle(ULONG RelativeTo, PCWSTR Path, PHKEY handle)
 990 {
 991     UNICODE_STRING KeyString;
 992     OBJECT_ATTRIBUTES regkey;
 993     PCWSTR base;
 994     INT len;
 995     NTSTATUS status;
 996
 997     static const WCHAR empty[] = {0};
 998     static const WCHAR control[] = {'\\','R','e','g','i','s','t','r','y','\\','M','a','c','h','i','n','e',
 999     '\\','S','y','s','t','e','m','\\','C','u','r','r','e','n','t',' ','C','o','n','t','r','o','l','S','e','t','\\',
1000     'C','o','n','t','r','o','l','\\',0};
1001
1002     static const WCHAR devicemap[] = {'\\','R','e','g','i','s','t','r','y','\\','M','a','c','h','i','n','e','\\',
1003     'H','a','r','d','w','a','r','e','\\','D','e','v','i','c','e','M','a','p','\\',0};
1004
1005     static const WCHAR services[] = {'\\','R','e','g','i','s','t','r','y','\\','M','a','c','h','i','n','e','\\',
1006     'S','y','s','t','e','m','\\','C','u','r','r','e','n','t','C','o','n','t','r','o','l','S','e','t','\\',
1007     'S','e','r','v','i','c','e','s','\\',0};
1008
1009     static const WCHAR user[] = {'\\','R','e','g','i','s','t','r','y','\\','U','s','e','r','\\',
1010     'C','u','r','r','e','n','t','U','s','e','r','\\',0};
1011
1012     static const WCHAR windows_nt[] = {'\\','R','e','g','i','s','t','r','y','\\','M','a','c','h','i','n','e','\\',
1013     'S','o','f','t','w','a','r','e','\\','M','i','c','r','o','s','o','f','t','\\',
1014     'W','i','n','d','o','w','s',' ','N','T','\\','C','u','r','r','e','n','t','V','e','r','s','i','o','n','\\',0};
1015
1016     switch (RelativeTo & 0xff)
1017     {
1018     case RTL_REGISTRY_ABSOLUTE:
1019         base = empty;
1020         break;
1021
1022     case RTL_REGISTRY_CONTROL:
1023         base = control;
1024         break;
1025
1026     case RTL_REGISTRY_DEVICEMAP:
1027         base = devicemap;
1028         break;
1029
1030     case RTL_REGISTRY_SERVICES:
1031         base = services;
1032         break;
1033
1034     case RTL_REGISTRY_USER:
1035         base = user;
1036         break;
1037
1038     case RTL_REGISTRY_WINDOWS_NT:
1039         base = windows_nt;
1040         break;
1041
1042     default:
1043         return STATUS_INVALID_PARAMETER;
1044     }
1045
1046     len = (strlenW(base) + strlenW(Path) + 1) * sizeof(WCHAR);
1047     KeyString.Buffer = RtlAllocateHeap(GetProcessHeap(), 0, len);
1048     if (KeyString.Buffer == NULL)
1049         return STATUS_NO_MEMORY;
1050
1051     strcpyW(KeyString.Buffer, base);
1052     strcatW(KeyString.Buffer, Path);
1053     KeyString.Length = len - sizeof(WCHAR);
1054     KeyString.MaximumLength = len;
1055     InitializeObjectAttributes(&regkey, &KeyString, OBJ_CASE_INSENSITIVE, NULL, NULL);
1056     status = NtOpenKey(handle, KEY_ALL_ACCESS, &regkey);
1057     RtlFreeHeap(GetProcessHeap(), 0, KeyString.Buffer);
1058     return status;
1059 }
1060
1061 /*************************************************************************
1062  * RtlQueryRegistryValues   [NTDLL.@]
1063  *
1064  * Query multiple registry values with a signle call.
1065  *
1066  * PARAMS
1067  *  RelativeTo  [I] Registry path that Path refers to
1068  *  Path        [I] Path to key
1069  *  QueryTable  [I] Table of key values to query
1070  *  Context     [I] Paremeter to pass to the application defined QueryRoutine function
1071  *  Environment [I] Optional parameter to use when performing expantion
1072  *
1073  * RETURNS
1074  *  STATUS_SUCCESS or an appropriate NTSTATUS error code.
1075  */
1076 NTSTATUS WINAPI RtlQueryRegistryValues(IN ULONG RelativeTo, IN PCWSTR Path,
1077                                        IN PRTL_QUERY_REGISTRY_TABLE QueryTable, IN PVOID Context,
1078                                        IN PVOID Environment OPTIONAL)
1079 {
1080     UNICODE_STRING Value;
1081     HKEY handle, topkey;
1082     PKEY_VALUE_FULL_INFORMATION pInfo = NULL;
1083     ULONG len, buflen = 0;
1084     NTSTATUS status=STATUS_SUCCESS, ret = STATUS_SUCCESS;
1085     INT i;
1086
1087     TRACE("(%ld, %s, %p, %p, %p)\n", RelativeTo, debugstr_w(Path), QueryTable, Context, Environment);
1088
1089     if(Path == NULL)
1090         return STATUS_INVALID_PARAMETER;
1091
1092     /* get a valid handle */
1093     if (RelativeTo & RTL_REGISTRY_HANDLE)
1094         topkey = handle = (HANDLE)Path;
1095     else
1096     {
1097         status = RTL_GetKeyHandle(RelativeTo, Path, &topkey);
1098         handle = topkey;
1099     }
1100     if(status != STATUS_SUCCESS)
1101         return status;
1102
1103     /* Process query table entries */
1104     for (; QueryTable->QueryRoutine != NULL || QueryTable->Name != NULL; ++QueryTable)
1105     {
1106         if (QueryTable->Flags &
1107             (RTL_QUERY_REGISTRY_SUBKEY | RTL_QUERY_REGISTRY_TOPKEY))
1108         {
1109             /* topkey must be kept open just in case we will reuse it later */
1110             if (handle != topkey)
1111                 NtClose(handle);
1112
1113             if (QueryTable->Flags & RTL_QUERY_REGISTRY_SUBKEY)
1114             {
1115                 handle = 0;
1116                 status = RTL_GetKeyHandle((ULONG)QueryTable->Name, Path, &handle);
1117                 if(status != STATUS_SUCCESS)
1118                 {
1119                     ret = status;
1120                     goto out;
1121                 }
1122             }
1123             else
1124                 handle = topkey;
1125         }
1126
1127         if (QueryTable->Flags & RTL_QUERY_REGISTRY_NOVALUE)
1128         {
1129             QueryTable->QueryRoutine(QueryTable->Name, REG_NONE, NULL, 0,
1130                 Context, QueryTable->EntryContext);
1131             continue;
1132         }
1133
1134         if (!handle)
1135         {
1136             if (QueryTable->Flags & RTL_QUERY_REGISTRY_REQUIRED)
1137             {
1138                 ret = STATUS_OBJECT_NAME_NOT_FOUND;
1139                 goto out;
1140             }
1141             continue;
1142         }
1143
1144         if (QueryTable->Name == NULL)
1145         {
1146             if (QueryTable->Flags & RTL_QUERY_REGISTRY_DIRECT)
1147             {
1148                 ret = STATUS_INVALID_PARAMETER;
1149                 goto out;
1150             }
1151
1152             /* Report all subkeys */
1153             for (i = 0;; ++i)
1154             {
1155                 status = NtEnumerateValueKey(handle, i,
1156                     KeyValueFullInformation, pInfo, buflen, &len);
1157                 if (status == STATUS_NO_MORE_ENTRIES)
1158                     break;
1159                 if (status == STATUS_BUFFER_OVERFLOW ||
1160                     status == STATUS_BUFFER_TOO_SMALL)
1161                 {
1162                     buflen = len;
1163                     RtlFreeHeap(GetProcessHeap(), 0, pInfo);
1164                     pInfo = (KEY_VALUE_FULL_INFORMATION*)RtlAllocateHeap(
1165                         GetProcessHeap(), 0, buflen);
1166                     NtEnumerateValueKey(handle, i, KeyValueFullInformation,
1167                         pInfo, buflen, &len);
1168                 }
1169
1170                 status = RTL_ReportRegistryValue(pInfo, QueryTable, Context, Environment);
1171                 if(status != STATUS_SUCCESS && status != STATUS_BUFFER_TOO_SMALL)
1172                 {
1173                     ret = status;
1174                     goto out;
1175                 }
1176                 if (QueryTable->Flags & RTL_QUERY_REGISTRY_DELETE)
1177                 {
1178                     RtlInitUnicodeString(&Value, pInfo->Name);
1179                     NtDeleteValueKey(handle, &Value);
1180                 }
1181             }
1182
1183             if (i == 0  && (QueryTable->Flags & RTL_QUERY_REGISTRY_REQUIRED))
1184             {
1185                 ret = STATUS_OBJECT_NAME_NOT_FOUND;
1186                 goto out;
1187             }
1188         }
1189         else
1190         {
1191             RtlInitUnicodeString(&Value, QueryTable->Name);
1192             status = NtQueryValueKey(handle, &Value, KeyValueFullInformation,
1193                 pInfo, buflen, &len);
1194             if (status == STATUS_BUFFER_OVERFLOW ||
1195                 status == STATUS_BUFFER_TOO_SMALL)
1196             {
1197                 buflen = len;
1198                 RtlFreeHeap(GetProcessHeap(), 0, pInfo);
1199                 pInfo = (KEY_VALUE_FULL_INFORMATION*)RtlAllocateHeap(
1200                     GetProcessHeap(), 0, buflen);
1201                 status = NtQueryValueKey(handle, &Value,
1202                     KeyValueFullInformation, pInfo, buflen, &len);
1203             }
1204             if (status != STATUS_SUCCESS)
1205             {
1206                 if (QueryTable->Flags & RTL_QUERY_REGISTRY_REQUIRED)
1207                 {
1208                     ret = STATUS_OBJECT_NAME_NOT_FOUND;
1209                     goto out;
1210                 }
1211                 status = RTL_ReportRegistryValue(NULL, QueryTable, Context, Environment);
1212                 if(status != STATUS_SUCCESS && status != STATUS_BUFFER_TOO_SMALL)
1213                 {
1214                     ret = status;
1215                     goto out;
1216                 }
1217             }
1218             else
1219             {
1220                 status = RTL_ReportRegistryValue(pInfo, QueryTable, Context, Environment);
1221                 if(status != STATUS_SUCCESS && status != STATUS_BUFFER_TOO_SMALL)
1222                 {
1223                     ret = status;
1224                     goto out;
1225                 }
1226                 if (QueryTable->Flags & RTL_QUERY_REGISTRY_DELETE)
1227                     NtDeleteValueKey(handle, &Value);
1228             }
1229         }
1230     }
1231
1232 out:
1233     RtlFreeHeap(GetProcessHeap(), 0, pInfo);
1234     if (handle != topkey)
1235         NtClose(handle);
1236     NtClose(topkey);
1237     return ret;
1238 }
1239
1240 /*************************************************************************
1241  * RtlCheckRegistryKey   [NTDLL.@]
1242  *
1243  * Query multiple registry values with a signle call.
1244  *
1245  * PARAMS
1246  *  RelativeTo [I] Registry path that Path refers to
1247  *  Path       [I] Path to key
1248  *
1249  * RETURNS
1250  *  STATUS_SUCCESS if the specified key exists, or an NTSTATUS error code.
1251  */
1252 NTSTATUS WINAPI RtlCheckRegistryKey(IN ULONG RelativeTo, IN PWSTR Path)
1253 {
1254     HKEY handle;
1255     NTSTATUS status;
1256
1257     TRACE("(%ld, %s)\n", RelativeTo, debugstr_w(Path));
1258
1259     if((!RelativeTo) && Path == NULL)
1260         return STATUS_OBJECT_PATH_SYNTAX_BAD;
1261     if(RelativeTo & RTL_REGISTRY_HANDLE)
1262         return STATUS_SUCCESS;
1263
1264     status = RTL_GetKeyHandle(RelativeTo, Path, &handle);
1265     if (handle) NtClose(handle);
1266     if (status == STATUS_INVALID_HANDLE) status = STATUS_OBJECT_NAME_NOT_FOUND;
1267     return status;
1268 }
1269
1270 /*************************************************************************
1271  * RtlDeleteRegistryValue   [NTDLL.@]
1272  *
1273  * Query multiple registry values with a signle call.
1274  *
1275  * PARAMS
1276  *  RelativeTo [I] Registry path that Path refers to
1277  *  Path       [I] Path to key
1278  *  ValueName  [I] Name of the value to delete
1279  *
1280  * RETURNS
1281  *  STATUS_SUCCESS if the specified key is successfully deleted, or an NTSTATUS error code.
1282  */
1283 NTSTATUS WINAPI RtlDeleteRegistryValue(IN ULONG RelativeTo, IN PCWSTR Path, IN PCWSTR ValueName)
1284 {
1285     NTSTATUS status;
1286     HKEY handle;
1287     UNICODE_STRING Value;
1288
1289     TRACE("(%ld, %s, %s)\n", RelativeTo, debugstr_w(Path), debugstr_w(ValueName));
1290
1291     RtlInitUnicodeString(&Value, ValueName);
1292     if(RelativeTo == RTL_REGISTRY_HANDLE)
1293     {
1294         return NtDeleteValueKey((HKEY)Path, &Value);
1295     }
1296     status = RTL_GetKeyHandle(RelativeTo, Path, &handle);
1297     if (status) return status;
1298     status = NtDeleteValueKey(handle, &Value);
1299     NtClose(handle);
1300     return status;
1301 }