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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, 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 "ntstatus.h"
  37 #define WIN32_NO_STATUS
  38 #include "wine/library.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( PHANDLE 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     if (!retkey || !attr) return STATUS_ACCESS_VIOLATION;
  59     if (attr->Length > sizeof(OBJECT_ATTRIBUTES)) return STATUS_INVALID_PARAMETER;
  60     if (attr->ObjectName->Length > MAX_NAME_LENGTH) return STATUS_BUFFER_OVERFLOW;
  61
  62     TRACE( "(%p,%s,%s,%x,%x,%p)\n", attr->RootDirectory, debugstr_us(attr->ObjectName),
  63            debugstr_us(class), options, access, retkey );
  64
  65     SERVER_START_REQ( create_key )
  66     {
  67         req->parent     = attr->RootDirectory;
  68         req->access     = access;
  69         req->attributes = attr->Attributes;
  70         req->options    = options;
  71         req->modif      = 0;
  72         req->namelen    = attr->ObjectName->Length;
  73         wine_server_add_data( req, attr->ObjectName->Buffer, attr->ObjectName->Length );
  74         if (class) wine_server_add_data( req, class->Buffer, class->Length );
  75         if (!(ret = wine_server_call( req )))
  76         {
  77             *retkey = reply->hkey;
  78             if (dispos) *dispos = reply->created ? REG_CREATED_NEW_KEY : REG_OPENED_EXISTING_KEY;
  79         }
  80     }
  81     SERVER_END_REQ;
  82     TRACE("<- %p\n", *retkey);
  83     return ret;
  84 }
  85
  86 /******************************************************************************
  87  *  RtlpNtCreateKey [NTDLL.@]
  88  *
  89  *  See NtCreateKey.
  90  */
  91 NTSTATUS WINAPI RtlpNtCreateKey( PHANDLE retkey, ACCESS_MASK access, const OBJECT_ATTRIBUTES *attr,
  92                                  ULONG TitleIndex, const UNICODE_STRING *class, ULONG options,
  93                                  PULONG dispos )
  94 {
  95     OBJECT_ATTRIBUTES oa;
  96
  97     if (attr)
  98     {
  99         memcpy( &oa, attr, sizeof oa );
 100         oa.Attributes &= ~(OBJ_PERMANENT|OBJ_EXCLUSIVE);
 101         attr = &oa;
 102     }
 103
 104     return NtCreateKey(retkey, access, attr, 0, NULL, 0, dispos);
 105 }
 106
 107 /******************************************************************************
 108  * NtOpenKey [NTDLL.@]
 109  * ZwOpenKey [NTDLL.@]
 110  *
 111  *   OUT        HANDLE                  retkey (returns 0 when failure)
 112  *   IN         ACCESS_MASK             access
 113  *   IN         POBJECT_ATTRIBUTES      attr
 114  */
 115 NTSTATUS WINAPI NtOpenKey( PHANDLE retkey, ACCESS_MASK access, const OBJECT_ATTRIBUTES *attr )
 116 {
 117     NTSTATUS ret;
 118     DWORD len = attr->ObjectName->Length;
 119
 120     TRACE( "(%p,%s,%x,%p)\n", attr->RootDirectory,
 121            debugstr_us(attr->ObjectName), access, retkey );
 122
 123     if (len > MAX_NAME_LENGTH) return STATUS_BUFFER_OVERFLOW;
 124     if (!retkey) return STATUS_INVALID_PARAMETER;
 125
 126     SERVER_START_REQ( open_key )
 127     {
 128         req->parent     = attr->RootDirectory;
 129         req->access     = access;
 130         req->attributes = attr->Attributes;
 131         wine_server_add_data( req, attr->ObjectName->Buffer, len );
 132         ret = wine_server_call( req );
 133         *retkey = reply->hkey;
 134     }
 135     SERVER_END_REQ;
 136     TRACE("<- %p\n", *retkey);
 137     return ret;
 138 }
 139
 140 /******************************************************************************
 141  * RtlpNtOpenKey [NTDLL.@]
 142  *
 143  * See NtOpenKey.
 144  */
 145 NTSTATUS WINAPI RtlpNtOpenKey( PHANDLE retkey, ACCESS_MASK access, OBJECT_ATTRIBUTES *attr )
 146 {
 147     if (attr)
 148         attr->Attributes &= ~(OBJ_PERMANENT|OBJ_EXCLUSIVE);
 149     return NtOpenKey(retkey, access, attr);
 150 }
 151
 152 /******************************************************************************
 153  * NtDeleteKey [NTDLL.@]
 154  * ZwDeleteKey [NTDLL.@]
 155  */
 156 NTSTATUS WINAPI NtDeleteKey( HANDLE hkey )
 157 {
 158     NTSTATUS ret;
 159
 160     TRACE( "(%p)\n", hkey );
 161
 162     SERVER_START_REQ( delete_key )
 163     {
 164         req->hkey = hkey;
 165         ret = wine_server_call( req );
 166     }
 167     SERVER_END_REQ;
 168     return ret;
 169 }
 170
 171 /******************************************************************************
 172  * RtlpNtMakeTemporaryKey [NTDLL.@]
 173  *
 174  *  See NtDeleteKey.
 175  */
 176 NTSTATUS WINAPI RtlpNtMakeTemporaryKey( HANDLE hkey )
 177 {
 178     return NtDeleteKey(hkey);
 179 }
 180
 181 /******************************************************************************
 182  * NtDeleteValueKey [NTDLL.@]
 183  * ZwDeleteValueKey [NTDLL.@]
 184  */
 185 NTSTATUS WINAPI NtDeleteValueKey( HANDLE hkey, const UNICODE_STRING *name )
 186 {
 187     NTSTATUS ret;
 188
 189     TRACE( "(%p,%s)\n", hkey, debugstr_us(name) );
 190     if (name->Length > MAX_NAME_LENGTH) return STATUS_BUFFER_OVERFLOW;
 191
 192     SERVER_START_REQ( delete_key_value )
 193     {
 194         req->hkey = hkey;
 195         wine_server_add_data( req, name->Buffer, name->Length );
 196         ret = wine_server_call( req );
 197     }
 198     SERVER_END_REQ;
 199     return ret;
 200 }
 201
 202
 203 /******************************************************************************
 204  *     enumerate_key
 205  *
 206  * Implementation of NtQueryKey and NtEnumerateKey
 207  */
 208 static NTSTATUS enumerate_key( HANDLE handle, int index, KEY_INFORMATION_CLASS info_class,
 209                                void *info, DWORD length, DWORD *result_len )
 210
 211 {
 212     NTSTATUS ret;
 213     void *data_ptr;
 214     size_t fixed_size;
 215
 216     switch(info_class)
 217     {
 218     case KeyBasicInformation: data_ptr = ((KEY_BASIC_INFORMATION *)info)->Name; break;
 219     case KeyFullInformation:  data_ptr = ((KEY_FULL_INFORMATION *)info)->Class; break;
 220     case KeyNodeInformation:  data_ptr = ((KEY_NODE_INFORMATION *)info)->Name;  break;
 221     default:
 222         FIXME( "Information class %d not implemented\n", info_class );
 223         return STATUS_INVALID_PARAMETER;
 224     }
 225     fixed_size = (char *)data_ptr - (char *)info;
 226
 227     SERVER_START_REQ( enum_key )
 228     {
 229         req->hkey       = handle;
 230         req->index      = index;
 231         req->info_class = info_class;
 232         if (length > fixed_size) wine_server_set_reply( req, data_ptr, length - fixed_size );
 233         if (!(ret = wine_server_call( req )))
 234         {
 235             LARGE_INTEGER modif;
 236
 237             RtlSecondsSince1970ToTime( reply->modif, &modif );
 238
 239             switch(info_class)
 240             {
 241             case KeyBasicInformation:
 242                 {
 243                     KEY_BASIC_INFORMATION keyinfo;
 244                     fixed_size = (char *)keyinfo.Name - (char *)&keyinfo;
 245                     keyinfo.LastWriteTime = modif;
 246                     keyinfo.TitleIndex = 0;
 247                     keyinfo.NameLength = reply->namelen;
 248                     memcpy( info, &keyinfo, min( length, fixed_size ) );
 249                 }
 250                 break;
 251             case KeyFullInformation:
 252                 {
 253                     KEY_FULL_INFORMATION keyinfo;
 254                     fixed_size = (char *)keyinfo.Class - (char *)&keyinfo;
 255                     keyinfo.LastWriteTime = modif;
 256                     keyinfo.TitleIndex = 0;
 257                     keyinfo.ClassLength = wine_server_reply_size(reply);
 258                     keyinfo.ClassOffset = keyinfo.ClassLength ? fixed_size : -1;
 259                     keyinfo.SubKeys = reply->subkeys;
 260                     keyinfo.MaxNameLen = reply->max_subkey;
 261                     keyinfo.MaxClassLen = reply->max_class;
 262                     keyinfo.Values = reply->values;
 263                     keyinfo.MaxValueNameLen = reply->max_value;
 264                     keyinfo.MaxValueDataLen = reply->max_data;
 265                     memcpy( info, &keyinfo, min( length, fixed_size ) );
 266                 }
 267                 break;
 268             case KeyNodeInformation:
 269                 {
 270                     KEY_NODE_INFORMATION keyinfo;
 271                     fixed_size = (char *)keyinfo.Name - (char *)&keyinfo;
 272                     keyinfo.LastWriteTime = modif;
 273                     keyinfo.TitleIndex = 0;
 274                     keyinfo.ClassLength = max( 0, wine_server_reply_size(reply) - reply->namelen );
 275                     keyinfo.ClassOffset = keyinfo.ClassLength ? fixed_size + reply->namelen : -1;
 276                     keyinfo.NameLength = reply->namelen;
 277                     memcpy( info, &keyinfo, min( length, fixed_size ) );
 278                 }
 279                 break;
 280             }
 281             *result_len = fixed_size + reply->total;
 282             if (length < *result_len) ret = STATUS_BUFFER_OVERFLOW;
 283         }
 284     }
 285     SERVER_END_REQ;
 286     return ret;
 287 }
 288
 289
 290
 291 /******************************************************************************
 292  * NtEnumerateKey [NTDLL.@]
 293  * ZwEnumerateKey [NTDLL.@]
 294  *
 295  * NOTES
 296  *  the name copied into the buffer is NOT 0-terminated
 297  */
 298 NTSTATUS WINAPI NtEnumerateKey( HANDLE handle, ULONG index, KEY_INFORMATION_CLASS info_class,
 299                                 void *info, DWORD length, DWORD *result_len )
 300 {
 301     /* -1 means query key, so avoid it here */
 302     if (index == (ULONG)-1) return STATUS_NO_MORE_ENTRIES;
 303     return enumerate_key( handle, index, info_class, info, length, result_len );
 304 }
 305
 306
 307 /******************************************************************************
 308  * RtlpNtEnumerateSubKey [NTDLL.@]
 309  *
 310  */
 311 NTSTATUS WINAPI RtlpNtEnumerateSubKey( HANDLE handle, UNICODE_STRING *out, ULONG index )
 312 {
 313   KEY_BASIC_INFORMATION *info;
 314   DWORD dwLen, dwResultLen;
 315   NTSTATUS ret;
 316
 317   if (out->Length)
 318   {
 319     dwLen = out->Length + sizeof(KEY_BASIC_INFORMATION);
 320     info = (KEY_BASIC_INFORMATION*)RtlAllocateHeap( GetProcessHeap(), 0, dwLen );
 321     if (!info)
 322       return STATUS_NO_MEMORY;
 323   }
 324   else
 325   {
 326     dwLen = 0;
 327     info = NULL;
 328   }
 329
 330   ret = NtEnumerateKey( handle, index, KeyBasicInformation, info, dwLen, &dwResultLen );
 331   dwResultLen -= sizeof(KEY_BASIC_INFORMATION);
 332
 333   if (ret == STATUS_BUFFER_OVERFLOW)
 334     out->Length = dwResultLen;
 335   else if (!ret)
 336   {
 337     if (out->Length < info->NameLength)
 338     {
 339       out->Length = dwResultLen;
 340       ret = STATUS_BUFFER_OVERFLOW;
 341     }
 342     else
 343     {
 344       out->Length = info->NameLength;
 345       memcpy(out->Buffer, info->Name, info->NameLength);
 346     }
 347   }
 348
 349   RtlFreeHeap( GetProcessHeap(), 0, info );
 350   return ret;
 351 }
 352
 353 /******************************************************************************
 354  * NtQueryKey [NTDLL.@]
 355  * ZwQueryKey [NTDLL.@]
 356  */
 357 NTSTATUS WINAPI NtQueryKey( HANDLE handle, KEY_INFORMATION_CLASS info_class,
 358                             void *info, DWORD length, DWORD *result_len )
 359 {
 360     return enumerate_key( handle, -1, info_class, info, length, result_len );
 361 }
 362
 363
 364 /* fill the key value info structure for a specific info class */
 365 static void copy_key_value_info( KEY_VALUE_INFORMATION_CLASS info_class, void *info,
 366                                  DWORD length, int type, int name_len, int data_len )
 367 {
 368     switch(info_class)
 369     {
 370     case KeyValueBasicInformation:
 371         {
 372             KEY_VALUE_BASIC_INFORMATION keyinfo;
 373             keyinfo.TitleIndex = 0;
 374             keyinfo.Type       = type;
 375             keyinfo.NameLength = name_len;
 376             length = min( length, (char *)keyinfo.Name - (char *)&keyinfo );
 377             memcpy( info, &keyinfo, length );
 378             break;
 379         }
 380     case KeyValueFullInformation:
 381         {
 382             KEY_VALUE_FULL_INFORMATION keyinfo;
 383             keyinfo.TitleIndex = 0;
 384             keyinfo.Type       = type;
 385             keyinfo.DataOffset = (char *)keyinfo.Name - (char *)&keyinfo + name_len;
 386             keyinfo.DataLength = data_len;
 387             keyinfo.NameLength = name_len;
 388             length = min( length, (char *)keyinfo.Name - (char *)&keyinfo );
 389             memcpy( info, &keyinfo, length );
 390             break;
 391         }
 392     case KeyValuePartialInformation:
 393         {
 394             KEY_VALUE_PARTIAL_INFORMATION keyinfo;
 395             keyinfo.TitleIndex = 0;
 396             keyinfo.Type       = type;
 397             keyinfo.DataLength = data_len;
 398             length = min( length, (char *)keyinfo.Data - (char *)&keyinfo );
 399             memcpy( info, &keyinfo, length );
 400             break;
 401         }
 402     default:
 403         break;
 404     }
 405 }
 406
 407
 408 /******************************************************************************
 409  *  NtEnumerateValueKey [NTDLL.@]
 410  *  ZwEnumerateValueKey [NTDLL.@]
 411  */
 412 NTSTATUS WINAPI NtEnumerateValueKey( HANDLE handle, ULONG index,
 413                                      KEY_VALUE_INFORMATION_CLASS info_class,
 414                                      void *info, DWORD length, DWORD *result_len )
 415 {
 416     NTSTATUS ret;
 417     void *ptr;
 418     size_t fixed_size;
 419
 420     TRACE( "(%p,%u,%d,%p,%d)\n", handle, index, info_class, info, length );
 421
 422     /* compute the length we want to retrieve */
 423     switch(info_class)
 424     {
 425     case KeyValueBasicInformation:   ptr = ((KEY_VALUE_BASIC_INFORMATION *)info)->Name; break;
 426     case KeyValueFullInformation:    ptr = ((KEY_VALUE_FULL_INFORMATION *)info)->Name; break;
 427     case KeyValuePartialInformation: ptr = ((KEY_VALUE_PARTIAL_INFORMATION *)info)->Data; break;
 428     default:
 429         FIXME( "Information class %d not implemented\n", info_class );
 430         return STATUS_INVALID_PARAMETER;
 431     }
 432     fixed_size = (char *)ptr - (char *)info;
 433
 434     SERVER_START_REQ( enum_key_value )
 435     {
 436         req->hkey       = handle;
 437         req->index      = index;
 438         req->info_class = info_class;
 439         if (length > fixed_size) wine_server_set_reply( req, ptr, length - fixed_size );
 440         if (!(ret = wine_server_call( req )))
 441         {
 442             copy_key_value_info( info_class, info, length, reply->type, reply->namelen,
 443                                  wine_server_reply_size(reply) - reply->namelen );
 444             *result_len = fixed_size + reply->total;
 445             if (length < *result_len) ret = STATUS_BUFFER_OVERFLOW;
 446         }
 447     }
 448     SERVER_END_REQ;
 449     return ret;
 450 }
 451
 452
 453 /******************************************************************************
 454  * NtQueryValueKey [NTDLL.@]
 455  * ZwQueryValueKey [NTDLL.@]
 456  *
 457  * NOTES
 458  *  the name in the KeyValueInformation is never set
 459  */
 460 NTSTATUS WINAPI NtQueryValueKey( HANDLE handle, const UNICODE_STRING *name,
 461                                  KEY_VALUE_INFORMATION_CLASS info_class,
 462                                  void *info, DWORD length, DWORD *result_len )
 463 {
 464     NTSTATUS ret;
 465     UCHAR *data_ptr;
 466     unsigned int fixed_size = 0;
 467
 468     TRACE( "(%p,%s,%d,%p,%d)\n", handle, debugstr_us(name), info_class, info, length );
 469
 470     if (name->Length > MAX_NAME_LENGTH) return STATUS_BUFFER_OVERFLOW;
 471
 472     /* compute the length we want to retrieve */
 473     switch(info_class)
 474     {
 475     case KeyValueBasicInformation:
 476         fixed_size = (char *)((KEY_VALUE_BASIC_INFORMATION *)info)->Name - (char *)info;
 477         data_ptr = NULL;
 478         break;
 479     case KeyValueFullInformation:
 480         data_ptr = (UCHAR *)((KEY_VALUE_FULL_INFORMATION *)info)->Name;
 481         fixed_size = (char *)data_ptr - (char *)info;
 482         break;
 483     case KeyValuePartialInformation:
 484         data_ptr = ((KEY_VALUE_PARTIAL_INFORMATION *)info)->Data;
 485         fixed_size = (char *)data_ptr - (char *)info;
 486         break;
 487     default:
 488         FIXME( "Information class %d not implemented\n", info_class );
 489         return STATUS_INVALID_PARAMETER;
 490     }
 491
 492     SERVER_START_REQ( get_key_value )
 493     {
 494         req->hkey = handle;
 495         wine_server_add_data( req, name->Buffer, name->Length );
 496         if (length > fixed_size) wine_server_set_reply( req, data_ptr, length - fixed_size );
 497         if (!(ret = wine_server_call( req )))
 498         {
 499             copy_key_value_info( info_class, info, length, reply->type,
 500                                  0, wine_server_reply_size(reply) );
 501             *result_len = fixed_size + reply->total;
 502             if (length < *result_len) ret = STATUS_BUFFER_OVERFLOW;
 503         }
 504     }
 505     SERVER_END_REQ;
 506     return ret;
 507 }
 508
 509 /******************************************************************************
 510  * RtlpNtQueryValueKey [NTDLL.@]
 511  *
 512  */
 513 NTSTATUS WINAPI RtlpNtQueryValueKey( HANDLE handle, ULONG *result_type, PBYTE dest,
 514                                      DWORD *result_len )
 515 {
 516     KEY_VALUE_PARTIAL_INFORMATION *info;
 517     UNICODE_STRING name;
 518     NTSTATUS ret;
 519     DWORD dwResultLen;
 520     DWORD dwLen = sizeof (KEY_VALUE_PARTIAL_INFORMATION) + (result_len ? *result_len : 0);
 521
 522     info = (KEY_VALUE_PARTIAL_INFORMATION*)RtlAllocateHeap( GetProcessHeap(), 0, dwLen );
 523     if (!info)
 524       return STATUS_NO_MEMORY;
 525
 526     name.Length = 0;
 527     ret = NtQueryValueKey( handle, &name, KeyValuePartialInformation, info, dwLen, &dwResultLen );
 528
 529     if (!ret || ret == STATUS_BUFFER_OVERFLOW)
 530     {
 531         if (result_len)
 532             *result_len = info->DataLength;
 533
 534         if (result_type)
 535             *result_type = info->Type;
 536
 537         if (ret != STATUS_BUFFER_OVERFLOW)
 538             memcpy( dest, info->Data, info->DataLength );
 539     }
 540
 541     RtlFreeHeap( GetProcessHeap(), 0, info );
 542     return ret;
 543 }
 544
 545 /******************************************************************************
 546  *  NtFlushKey  [NTDLL.@]
 547  *  ZwFlushKey  [NTDLL.@]
 548  */
 549 NTSTATUS WINAPI NtFlushKey(HANDLE key)
 550 {
 551     NTSTATUS ret;
 552
 553     TRACE("key=%p\n", key);
 554
 555     SERVER_START_REQ( flush_key )
 556     {
 557         req->hkey = key;
 558         ret = wine_server_call( req );
 559     }
 560     SERVER_END_REQ;
 561
 562     return ret;
 563 }
 564
 565 /******************************************************************************
 566  *  NtLoadKey   [NTDLL.@]
 567  *  ZwLoadKey   [NTDLL.@]
 568  */
 569 NTSTATUS WINAPI NtLoadKey( const OBJECT_ATTRIBUTES *attr, OBJECT_ATTRIBUTES *file )
 570 {
 571     NTSTATUS ret;
 572     HANDLE hive;
 573     IO_STATUS_BLOCK io;
 574
 575     TRACE("(%p,%p)\n", attr, file);
 576
 577     ret = NtCreateFile(&hive, GENERIC_READ, file, &io, NULL, FILE_ATTRIBUTE_NORMAL, 0,
 578                        FILE_OPEN, 0, NULL, 0);
 579     if (ret) return ret;
 580
 581     SERVER_START_REQ( load_registry )
 582     {
 583         req->hkey = attr->RootDirectory;
 584         req->file = hive;
 585         wine_server_add_data(req, attr->ObjectName->Buffer, attr->ObjectName->Length);
 586         ret = wine_server_call( req );
 587     }
 588     SERVER_END_REQ;
 589
 590     NtClose(hive);
 591
 592     return ret;
 593 }
 594
 595 /******************************************************************************
 596  *  NtNotifyChangeKey   [NTDLL.@]
 597  *  ZwNotifyChangeKey   [NTDLL.@]
 598  */
 599 NTSTATUS WINAPI NtNotifyChangeKey(
 600         IN HANDLE KeyHandle,
 601         IN HANDLE Event,
 602         IN PIO_APC_ROUTINE ApcRoutine OPTIONAL,
 603         IN PVOID ApcContext OPTIONAL,
 604         OUT PIO_STATUS_BLOCK IoStatusBlock,
 605         IN ULONG CompletionFilter,
 606         IN BOOLEAN Asynchronous,
 607         OUT PVOID ChangeBuffer,
 608         IN ULONG Length,
 609         IN BOOLEAN WatchSubtree)
 610 {
 611     NTSTATUS ret;
 612
 613     TRACE("(%p,%p,%p,%p,%p,0x%08x, 0x%08x,%p,0x%08x,0x%08x)\n",
 614         KeyHandle, Event, ApcRoutine, ApcContext, IoStatusBlock, CompletionFilter,
 615         Asynchronous, ChangeBuffer, Length, WatchSubtree);
 616
 617     if (ApcRoutine || ApcContext || ChangeBuffer || Length)
 618         FIXME("Unimplemented optional parameter\n");
 619
 620     if (!Asynchronous)
 621     {
 622         OBJECT_ATTRIBUTES attr;
 623         InitializeObjectAttributes( &attr, NULL, 0, NULL, NULL );
 624         ret = NtCreateEvent( &Event, EVENT_ALL_ACCESS, &attr, FALSE, FALSE );
 625         if (ret != STATUS_SUCCESS)
 626             return ret;
 627     }
 628
 629     SERVER_START_REQ( set_registry_notification )
 630     {
 631         req->hkey    = KeyHandle;
 632         req->event   = Event;
 633         req->subtree = WatchSubtree;
 634         req->filter  = CompletionFilter;
 635         ret = wine_server_call( req );
 636     }
 637     SERVER_END_REQ;
 638
 639     if (!Asynchronous)
 640     {
 641         if (ret == STATUS_SUCCESS)
 642             NtWaitForSingleObject( Event, FALSE, NULL );
 643         NtClose( Event );
 644     }
 645
 646     return STATUS_SUCCESS;
 647 }
 648
 649 /******************************************************************************
 650  * NtQueryMultipleValueKey [NTDLL]
 651  * ZwQueryMultipleValueKey
 652  */
 653
 654 NTSTATUS WINAPI NtQueryMultipleValueKey(
 655         HANDLE KeyHandle,
 656         PKEY_MULTIPLE_VALUE_INFORMATION ListOfValuesToQuery,
 657         ULONG NumberOfItems,
 658         PVOID MultipleValueInformation,
 659         ULONG Length,
 660         PULONG  ReturnLength)
 661 {
 662         FIXME("(%p,%p,0x%08x,%p,0x%08x,%p) stub!\n",
 663         KeyHandle, ListOfValuesToQuery, NumberOfItems, MultipleValueInformation,
 664         Length,ReturnLength);
 665         return STATUS_SUCCESS;
 666 }
 667
 668 /******************************************************************************
 669  * NtReplaceKey [NTDLL.@]
 670  * ZwReplaceKey [NTDLL.@]
 671  */
 672 NTSTATUS WINAPI NtReplaceKey(
 673         IN POBJECT_ATTRIBUTES ObjectAttributes,
 674         IN HANDLE Key,
 675         IN POBJECT_ATTRIBUTES ReplacedObjectAttributes)
 676 {
 677         FIXME("(%p),stub!\n", Key);
 678         dump_ObjectAttributes(ObjectAttributes);
 679         dump_ObjectAttributes(ReplacedObjectAttributes);
 680         return STATUS_SUCCESS;
 681 }
 682 /******************************************************************************
 683  * NtRestoreKey [NTDLL.@]
 684  * ZwRestoreKey [NTDLL.@]
 685  */
 686 NTSTATUS WINAPI NtRestoreKey(
 687         HANDLE KeyHandle,
 688         HANDLE FileHandle,
 689         ULONG RestoreFlags)
 690 {
 691         FIXME("(%p,%p,0x%08x) stub\n",
 692         KeyHandle, FileHandle, RestoreFlags);
 693         return STATUS_SUCCESS;
 694 }
 695 /******************************************************************************
 696  * NtSaveKey [NTDLL.@]
 697  * ZwSaveKey [NTDLL.@]
 698  */
 699 NTSTATUS WINAPI NtSaveKey(IN HANDLE KeyHandle, IN HANDLE FileHandle)
 700 {
 701     NTSTATUS ret;
 702
 703     TRACE("(%p,%p)\n", KeyHandle, FileHandle);
 704
 705     SERVER_START_REQ( save_registry )
 706     {
 707         req->hkey = KeyHandle;
 708         req->file = FileHandle;
 709         ret = wine_server_call( req );
 710     }
 711     SERVER_END_REQ;
 712
 713     return ret;
 714 }
 715 /******************************************************************************
 716  * NtSetInformationKey [NTDLL.@]
 717  * ZwSetInformationKey [NTDLL.@]
 718  */
 719 NTSTATUS WINAPI NtSetInformationKey(
 720         IN HANDLE KeyHandle,
 721         IN const int KeyInformationClass,
 722         IN PVOID KeyInformation,
 723         IN ULONG KeyInformationLength)
 724 {
 725         FIXME("(%p,0x%08x,%p,0x%08x) stub\n",
 726         KeyHandle, KeyInformationClass, KeyInformation, KeyInformationLength);
 727         return STATUS_SUCCESS;
 728 }
 729
 730
 731 /******************************************************************************
 732  * NtSetValueKey [NTDLL.@]
 733  * ZwSetValueKey [NTDLL.@]
 734  *
 735  * NOTES
 736  *   win95 does not care about count for REG_SZ and finds out the len by itself (js)
 737  *   NT does definitely care (aj)
 738  */
 739 NTSTATUS WINAPI NtSetValueKey( HANDLE hkey, const UNICODE_STRING *name, ULONG TitleIndex,
 740                                ULONG type, const void *data, ULONG count )
 741 {
 742     NTSTATUS ret;
 743
 744     TRACE( "(%p,%s,%d,%p,%d)\n", hkey, debugstr_us(name), type, data, count );
 745
 746     if (name->Length > MAX_NAME_LENGTH) return STATUS_BUFFER_OVERFLOW;
 747
 748     SERVER_START_REQ( set_key_value )
 749     {
 750         req->hkey    = hkey;
 751         req->type    = type;
 752         req->namelen = name->Length;
 753         wine_server_add_data( req, name->Buffer, name->Length );
 754         wine_server_add_data( req, data, count );
 755         ret = wine_server_call( req );
 756     }
 757     SERVER_END_REQ;
 758     return ret;
 759 }
 760
 761 /******************************************************************************
 762  * RtlpNtSetValueKey [NTDLL.@]
 763  *
 764  */
 765 NTSTATUS WINAPI RtlpNtSetValueKey( HANDLE hkey, ULONG type, const void *data,
 766                                    ULONG count )
 767 {
 768     UNICODE_STRING name;
 769
 770     name.Length = 0;
 771     return NtSetValueKey( hkey, &name, 0, type, data, count );
 772 }
 773
 774 /******************************************************************************
 775  * NtUnloadKey [NTDLL.@]
 776  * ZwUnloadKey [NTDLL.@]
 777  */
 778 NTSTATUS WINAPI NtUnloadKey(IN POBJECT_ATTRIBUTES attr)
 779 {
 780     NTSTATUS ret;
 781
 782     TRACE("(%p)\n", attr);
 783
 784     SERVER_START_REQ( unload_registry )
 785     {
 786         req->hkey = attr->RootDirectory;
 787         ret = wine_server_call(req);
 788     }
 789     SERVER_END_REQ;
 790
 791     return ret;
 792 }
 793
 794 /******************************************************************************
 795  *  RtlFormatCurrentUserKeyPath         [NTDLL.@]
 796  *
 797  */
 798 NTSTATUS WINAPI RtlFormatCurrentUserKeyPath( IN OUT PUNICODE_STRING KeyPath)
 799 {
 800     static const WCHAR pathW[] = {'\\','R','e','g','i','s','t','r','y','\\','U','s','e','r','\\'};
 801     HANDLE token;
 802     NTSTATUS status;
 803
 804     status = NtOpenThreadToken(GetCurrentThread(), TOKEN_READ, TRUE, &token);
 805     if (status == STATUS_NO_TOKEN)
 806         status = NtOpenProcessToken(GetCurrentProcess(), TOKEN_READ, &token);
 807     if (status == STATUS_SUCCESS)
 808     {
 809         char buffer[sizeof(TOKEN_USER) + sizeof(SID) + sizeof(DWORD)*SID_MAX_SUB_AUTHORITIES];
 810         DWORD len = sizeof(buffer);
 811
 812         status = NtQueryInformationToken(token, TokenUser, buffer, len, &len);
 813         if (status == STATUS_SUCCESS)
 814         {
 815             KeyPath->MaximumLength = 0;
 816             status = RtlConvertSidToUnicodeString(KeyPath, ((TOKEN_USER *)buffer)->User.Sid, FALSE);
 817             if (status == STATUS_BUFFER_OVERFLOW)
 818             {
 819                 PWCHAR buf = RtlAllocateHeap(GetProcessHeap(), 0,
 820                                              sizeof(pathW) + KeyPath->Length + sizeof(WCHAR));
 821                 if (buf)
 822                 {
 823                     memcpy(buf, pathW, sizeof(pathW));
 824                     KeyPath->MaximumLength = KeyPath->Length + sizeof(WCHAR);
 825                     KeyPath->Buffer = (PWCHAR)((LPBYTE)buf + sizeof(pathW));
 826                     status = RtlConvertSidToUnicodeString(KeyPath,
 827                                                           ((TOKEN_USER *)buffer)->User.Sid, FALSE);
 828                     KeyPath->Buffer = (PWCHAR)buf;
 829                     KeyPath->Length += sizeof(pathW);
 830                     KeyPath->MaximumLength += sizeof(pathW);
 831                 }
 832                 else
 833                     status = STATUS_NO_MEMORY;
 834             }
 835         }
 836         NtClose(token);
 837     }
 838     return status;
 839 }
 840
 841 /******************************************************************************
 842  *  RtlOpenCurrentUser          [NTDLL.@]
 843  *
 844  * NOTES
 845  *  If we return just HKEY_CURRENT_USER the advapi tries to find a remote
 846  *  registry (odd handle) and fails.
 847  */
 848 NTSTATUS WINAPI RtlOpenCurrentUser(
 849         IN ACCESS_MASK DesiredAccess, /* [in] */
 850         OUT PHANDLE KeyHandle)        /* [out] handle of HKEY_CURRENT_USER */
 851 {
 852         OBJECT_ATTRIBUTES ObjectAttributes;
 853         UNICODE_STRING ObjectName;
 854         NTSTATUS ret;
 855
 856         TRACE("(0x%08x, %p)\n",DesiredAccess, KeyHandle);
 857
 858         if ((ret = RtlFormatCurrentUserKeyPath(&ObjectName))) return ret;
 859         InitializeObjectAttributes(&ObjectAttributes,&ObjectName,OBJ_CASE_INSENSITIVE,0, NULL);
 860         ret = NtCreateKey(KeyHandle, DesiredAccess, &ObjectAttributes, 0, NULL, 0, NULL);
 861         RtlFreeUnicodeString(&ObjectName);
 862         return ret;
 863 }
 864
 865
 866 static NTSTATUS RTL_ReportRegistryValue(PKEY_VALUE_FULL_INFORMATION pInfo,
 867                                         PRTL_QUERY_REGISTRY_TABLE pQuery, PVOID pContext, PVOID pEnvironment)
 868 {
 869     PUNICODE_STRING str;
 870     UNICODE_STRING src, dst;
 871     LONG *bin;
 872     ULONG offset;
 873     PWSTR wstr;
 874     DWORD res;
 875     NTSTATUS status = STATUS_SUCCESS;
 876     ULONG len;
 877     LPWSTR String;
 878     INT count = 0;
 879
 880     if (pInfo == NULL)
 881     {
 882         if (pQuery->Flags & RTL_QUERY_REGISTRY_DIRECT)
 883             return STATUS_INVALID_PARAMETER;
 884         else
 885         {
 886             status = pQuery->QueryRoutine(pQuery->Name, pQuery->DefaultType, pQuery->DefaultData,
 887                                           pQuery->DefaultLength, pContext, pQuery->EntryContext);
 888         }
 889         return status;
 890     }
 891     len = pInfo->DataLength;
 892
 893     if (pQuery->Flags & RTL_QUERY_REGISTRY_DIRECT)
 894     {
 895         str = (PUNICODE_STRING)pQuery->EntryContext;
 896
 897         switch(pInfo->Type)
 898         {
 899         case REG_EXPAND_SZ:
 900             if (!(pQuery->Flags & RTL_QUERY_REGISTRY_NOEXPAND))
 901             {
 902                 RtlInitUnicodeString(&src, (WCHAR*)(((CHAR*)pInfo) + pInfo->DataOffset));
 903                 res = 0;
 904                 dst.MaximumLength = 0;
 905                 RtlExpandEnvironmentStrings_U(pEnvironment, &src, &dst, &res);
 906                 dst.Length = 0;
 907                 dst.MaximumLength = res;
 908                 dst.Buffer = RtlAllocateHeap(GetProcessHeap(), 0, res * sizeof(WCHAR));
 909                 RtlExpandEnvironmentStrings_U(pEnvironment, &src, &dst, &res);
 910                 status = pQuery->QueryRoutine(pQuery->Name, pInfo->Type, dst.Buffer,
 911                                      dst.Length, pContext, pQuery->EntryContext);
 912                 RtlFreeHeap(GetProcessHeap(), 0, dst.Buffer);
 913             }
 914
 915         case REG_SZ:
 916         case REG_LINK:
 917             if (str->Buffer == NULL)
 918                 RtlCreateUnicodeString(str, (WCHAR*)(((CHAR*)pInfo) + pInfo->DataOffset));
 919             else
 920                 RtlAppendUnicodeToString(str, (WCHAR*)(((CHAR*)pInfo) + pInfo->DataOffset));
 921             break;
 922
 923         case REG_MULTI_SZ:
 924             if (!(pQuery->Flags & RTL_QUERY_REGISTRY_NOEXPAND))
 925                 return STATUS_INVALID_PARAMETER;
 926
 927             if (str->Buffer == NULL)
 928             {
 929                 str->Buffer = RtlAllocateHeap(GetProcessHeap(), 0, len);
 930                 str->MaximumLength = len;
 931             }
 932             len = min(len, str->MaximumLength);
 933             memcpy(str->Buffer, ((CHAR*)pInfo) + pInfo->DataOffset, len);
 934             str->Length = len;
 935             break;
 936
 937         default:
 938             bin = (LONG*)pQuery->EntryContext;
 939             if (pInfo->DataLength <= sizeof(ULONG))
 940                 memcpy(bin, ((CHAR*)pInfo) + pInfo->DataOffset,
 941                     pInfo->DataLength);
 942             else
 943             {
 944                 if (bin[0] <= sizeof(ULONG))
 945                 {
 946                     memcpy(&bin[1], ((CHAR*)pInfo) + pInfo->DataOffset,
 947                     min(-bin[0], pInfo->DataLength));
 948                 }
 949                 else
 950                 {
 951                    len = min(bin[0], pInfo->DataLength);
 952                     bin[1] = len;
 953                     bin[2] = pInfo->Type;
 954                     memcpy(&bin[3], ((CHAR*)pInfo) + pInfo->DataOffset, len);
 955                 }
 956            }
 957            break;
 958         }
 959     }
 960     else
 961     {
 962         if((pQuery->Flags & RTL_QUERY_REGISTRY_NOEXPAND) ||
 963            (pInfo->Type != REG_EXPAND_SZ && pInfo->Type != REG_MULTI_SZ))
 964         {
 965             status = pQuery->QueryRoutine(pInfo->Name, pInfo->Type,
 966                 ((CHAR*)pInfo) + pInfo->DataOffset, pInfo->DataLength,
 967                 pContext, pQuery->EntryContext);
 968         }
 969         else if (pInfo->Type == REG_EXPAND_SZ)
 970         {
 971             RtlInitUnicodeString(&src, (WCHAR*)(((CHAR*)pInfo) + pInfo->DataOffset));
 972             res = 0;
 973             dst.MaximumLength = 0;
 974             RtlExpandEnvironmentStrings_U(pEnvironment, &src, &dst, &res);
 975             dst.Length = 0;
 976             dst.MaximumLength = res;
 977             dst.Buffer = RtlAllocateHeap(GetProcessHeap(), 0, res * sizeof(WCHAR));
 978             RtlExpandEnvironmentStrings_U(pEnvironment, &src, &dst, &res);
 979             status = pQuery->QueryRoutine(pQuery->Name, pInfo->Type, dst.Buffer,
 980                                           dst.Length, pContext, pQuery->EntryContext);
 981             RtlFreeHeap(GetProcessHeap(), 0, dst.Buffer);
 982         }
 983         else /* REG_MULTI_SZ */
 984         {
 985             if(pQuery->Flags & RTL_QUERY_REGISTRY_NOEXPAND)
 986             {
 987                 for (offset = 0; offset <= pInfo->DataLength; offset += len + sizeof(WCHAR))
 988                     {
 989                     wstr = (WCHAR*)(((CHAR*)pInfo) + offset);
 990                     len = strlenW(wstr) * sizeof(WCHAR);
 991                     status = pQuery->QueryRoutine(pQuery->Name, pInfo->Type, wstr, len,
 992                         pContext, pQuery->EntryContext);
 993                     if(status != STATUS_SUCCESS && status != STATUS_BUFFER_TOO_SMALL)
 994                         return status;
 995                     }
 996             }
 997             else
 998             {
 999                 while(count<=pInfo->DataLength)
1000                 {
1001                     String = (WCHAR*)(((CHAR*)pInfo) + pInfo->DataOffset)+count;
1002                     count+=strlenW(String)+1;
1003                     RtlInitUnicodeString(&src, (WCHAR*)(((CHAR*)pInfo) + pInfo->DataOffset));
1004                     res = 0;
1005                     dst.MaximumLength = 0;
1006                     RtlExpandEnvironmentStrings_U(pEnvironment, &src, &dst, &res);
1007                     dst.Length = 0;
1008                     dst.MaximumLength = res;
1009                     dst.Buffer = RtlAllocateHeap(GetProcessHeap(), 0, res * sizeof(WCHAR));
1010                     RtlExpandEnvironmentStrings_U(pEnvironment, &src, &dst, &res);
1011                     status = pQuery->QueryRoutine(pQuery->Name, pInfo->Type, dst.Buffer,
1012                                                   dst.Length, pContext, pQuery->EntryContext);
1013                     RtlFreeHeap(GetProcessHeap(), 0, dst.Buffer);
1014                     if(status != STATUS_SUCCESS && status != STATUS_BUFFER_TOO_SMALL)
1015                         return status;
1016                 }
1017             }
1018         }
1019     }
1020     return status;
1021 }
1022
1023
1024 static NTSTATUS RTL_GetKeyHandle(ULONG RelativeTo, PCWSTR Path, PHANDLE handle)
1025 {
1026     UNICODE_STRING KeyString;
1027     OBJECT_ATTRIBUTES regkey;
1028     PCWSTR base;
1029     INT len;
1030     NTSTATUS status;
1031
1032     static const WCHAR empty[] = {0};
1033     static const WCHAR control[] = {'\\','R','e','g','i','s','t','r','y','\\','M','a','c','h','i','n','e',
1034     '\\','S','y','s','t','e','m','\\','C','u','r','r','e','n','t',' ','C','o','n','t','r','o','l','S','e','t','\\',
1035     'C','o','n','t','r','o','l','\\',0};
1036
1037     static const WCHAR devicemap[] = {'\\','R','e','g','i','s','t','r','y','\\','M','a','c','h','i','n','e','\\',
1038     'H','a','r','d','w','a','r','e','\\','D','e','v','i','c','e','M','a','p','\\',0};
1039
1040     static const WCHAR services[] = {'\\','R','e','g','i','s','t','r','y','\\','M','a','c','h','i','n','e','\\',
1041     'S','y','s','t','e','m','\\','C','u','r','r','e','n','t','C','o','n','t','r','o','l','S','e','t','\\',
1042     'S','e','r','v','i','c','e','s','\\',0};
1043
1044     static const WCHAR user[] = {'\\','R','e','g','i','s','t','r','y','\\','U','s','e','r','\\',
1045     'C','u','r','r','e','n','t','U','s','e','r','\\',0};
1046
1047     static const WCHAR windows_nt[] = {'\\','R','e','g','i','s','t','r','y','\\','M','a','c','h','i','n','e','\\',
1048     'S','o','f','t','w','a','r','e','\\','M','i','c','r','o','s','o','f','t','\\',
1049     'W','i','n','d','o','w','s',' ','N','T','\\','C','u','r','r','e','n','t','V','e','r','s','i','o','n','\\',0};
1050
1051     switch (RelativeTo & 0xff)
1052     {
1053     case RTL_REGISTRY_ABSOLUTE:
1054         base = empty;
1055         break;
1056
1057     case RTL_REGISTRY_CONTROL:
1058         base = control;
1059         break;
1060
1061     case RTL_REGISTRY_DEVICEMAP:
1062         base = devicemap;
1063         break;
1064
1065     case RTL_REGISTRY_SERVICES:
1066         base = services;
1067         break;
1068
1069     case RTL_REGISTRY_USER:
1070         base = user;
1071         break;
1072
1073     case RTL_REGISTRY_WINDOWS_NT:
1074         base = windows_nt;
1075         break;
1076
1077     default:
1078         return STATUS_INVALID_PARAMETER;
1079     }
1080
1081     len = (strlenW(base) + strlenW(Path) + 1) * sizeof(WCHAR);
1082     KeyString.Buffer = RtlAllocateHeap(GetProcessHeap(), 0, len);
1083     if (KeyString.Buffer == NULL)
1084         return STATUS_NO_MEMORY;
1085
1086     strcpyW(KeyString.Buffer, base);
1087     strcatW(KeyString.Buffer, Path);
1088     KeyString.Length = len - sizeof(WCHAR);
1089     KeyString.MaximumLength = len;
1090     InitializeObjectAttributes(&regkey, &KeyString, OBJ_CASE_INSENSITIVE, NULL, NULL);
1091     status = NtOpenKey(handle, KEY_ALL_ACCESS, &regkey);
1092     RtlFreeHeap(GetProcessHeap(), 0, KeyString.Buffer);
1093     return status;
1094 }
1095
1096 /*************************************************************************
1097  * RtlQueryRegistryValues   [NTDLL.@]
1098  *
1099  * Query multiple registry values with a signle call.
1100  *
1101  * PARAMS
1102  *  RelativeTo  [I] Registry path that Path refers to
1103  *  Path        [I] Path to key
1104  *  QueryTable  [I] Table of key values to query
1105  *  Context     [I] Paremeter to pass to the application defined QueryRoutine function
1106  *  Environment [I] Optional parameter to use when performing expantion
1107  *
1108  * RETURNS
1109  *  STATUS_SUCCESS or an appropriate NTSTATUS error code.
1110  */
1111 NTSTATUS WINAPI RtlQueryRegistryValues(IN ULONG RelativeTo, IN PCWSTR Path,
1112                                        IN PRTL_QUERY_REGISTRY_TABLE QueryTable, IN PVOID Context,
1113                                        IN PVOID Environment OPTIONAL)
1114 {
1115     UNICODE_STRING Value;
1116     HANDLE handle, topkey;
1117     PKEY_VALUE_FULL_INFORMATION pInfo = NULL;
1118     ULONG len, buflen = 0;
1119     NTSTATUS status=STATUS_SUCCESS, ret = STATUS_SUCCESS;
1120     INT i;
1121
1122     TRACE("(%d, %s, %p, %p, %p)\n", RelativeTo, debugstr_w(Path), QueryTable, Context, Environment);
1123
1124     if(Path == NULL)
1125         return STATUS_INVALID_PARAMETER;
1126
1127     /* get a valid handle */
1128     if (RelativeTo & RTL_REGISTRY_HANDLE)
1129         topkey = handle = (HANDLE)Path;
1130     else
1131     {
1132         status = RTL_GetKeyHandle(RelativeTo, Path, &topkey);
1133         handle = topkey;
1134     }
1135     if(status != STATUS_SUCCESS)
1136         return status;
1137
1138     /* Process query table entries */
1139     for (; QueryTable->QueryRoutine != NULL || QueryTable->Name != NULL; ++QueryTable)
1140     {
1141         if (QueryTable->Flags &
1142             (RTL_QUERY_REGISTRY_SUBKEY | RTL_QUERY_REGISTRY_TOPKEY))
1143         {
1144             /* topkey must be kept open just in case we will reuse it later */
1145             if (handle != topkey)
1146                 NtClose(handle);
1147
1148             if (QueryTable->Flags & RTL_QUERY_REGISTRY_SUBKEY)
1149             {
1150                 handle = 0;
1151                 status = RTL_GetKeyHandle((ULONG)QueryTable->Name, Path, &handle);
1152                 if(status != STATUS_SUCCESS)
1153                 {
1154                     ret = status;
1155                     goto out;
1156                 }
1157             }
1158             else
1159                 handle = topkey;
1160         }
1161
1162         if (QueryTable->Flags & RTL_QUERY_REGISTRY_NOVALUE)
1163         {
1164             QueryTable->QueryRoutine(QueryTable->Name, REG_NONE, NULL, 0,
1165                 Context, QueryTable->EntryContext);
1166             continue;
1167         }
1168
1169         if (!handle)
1170         {
1171             if (QueryTable->Flags & RTL_QUERY_REGISTRY_REQUIRED)
1172             {
1173                 ret = STATUS_OBJECT_NAME_NOT_FOUND;
1174                 goto out;
1175             }
1176             continue;
1177         }
1178
1179         if (QueryTable->Name == NULL)
1180         {
1181             if (QueryTable->Flags & RTL_QUERY_REGISTRY_DIRECT)
1182             {
1183                 ret = STATUS_INVALID_PARAMETER;
1184                 goto out;
1185             }
1186
1187             /* Report all subkeys */
1188             for (i = 0;; ++i)
1189             {
1190                 status = NtEnumerateValueKey(handle, i,
1191                     KeyValueFullInformation, pInfo, buflen, &len);
1192                 if (status == STATUS_NO_MORE_ENTRIES)
1193                     break;
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                     NtEnumerateValueKey(handle, i, KeyValueFullInformation,
1202                         pInfo, buflen, &len);
1203                 }
1204
1205                 status = RTL_ReportRegistryValue(pInfo, QueryTable, Context, Environment);
1206                 if(status != STATUS_SUCCESS && status != STATUS_BUFFER_TOO_SMALL)
1207                 {
1208                     ret = status;
1209                     goto out;
1210                 }
1211                 if (QueryTable->Flags & RTL_QUERY_REGISTRY_DELETE)
1212                 {
1213                     RtlInitUnicodeString(&Value, pInfo->Name);
1214                     NtDeleteValueKey(handle, &Value);
1215                 }
1216             }
1217
1218             if (i == 0  && (QueryTable->Flags & RTL_QUERY_REGISTRY_REQUIRED))
1219             {
1220                 ret = STATUS_OBJECT_NAME_NOT_FOUND;
1221                 goto out;
1222             }
1223         }
1224         else
1225         {
1226             RtlInitUnicodeString(&Value, QueryTable->Name);
1227             status = NtQueryValueKey(handle, &Value, KeyValueFullInformation,
1228                 pInfo, buflen, &len);
1229             if (status == STATUS_BUFFER_OVERFLOW ||
1230                 status == STATUS_BUFFER_TOO_SMALL)
1231             {
1232                 buflen = len;
1233                 RtlFreeHeap(GetProcessHeap(), 0, pInfo);
1234                 pInfo = (KEY_VALUE_FULL_INFORMATION*)RtlAllocateHeap(
1235                     GetProcessHeap(), 0, buflen);
1236                 status = NtQueryValueKey(handle, &Value,
1237                     KeyValueFullInformation, pInfo, buflen, &len);
1238             }
1239             if (status != STATUS_SUCCESS)
1240             {
1241                 if (QueryTable->Flags & RTL_QUERY_REGISTRY_REQUIRED)
1242                 {
1243                     ret = STATUS_OBJECT_NAME_NOT_FOUND;
1244                     goto out;
1245                 }
1246                 status = RTL_ReportRegistryValue(NULL, QueryTable, Context, Environment);
1247                 if(status != STATUS_SUCCESS && status != STATUS_BUFFER_TOO_SMALL)
1248                 {
1249                     ret = status;
1250                     goto out;
1251                 }
1252             }
1253             else
1254             {
1255                 status = RTL_ReportRegistryValue(pInfo, QueryTable, Context, Environment);
1256                 if(status != STATUS_SUCCESS && status != STATUS_BUFFER_TOO_SMALL)
1257                 {
1258                     ret = status;
1259                     goto out;
1260                 }
1261                 if (QueryTable->Flags & RTL_QUERY_REGISTRY_DELETE)
1262                     NtDeleteValueKey(handle, &Value);
1263             }
1264         }
1265     }
1266
1267 out:
1268     RtlFreeHeap(GetProcessHeap(), 0, pInfo);
1269     if (handle != topkey)
1270         NtClose(handle);
1271     NtClose(topkey);
1272     return ret;
1273 }
1274
1275 /*************************************************************************
1276  * RtlCheckRegistryKey   [NTDLL.@]
1277  *
1278  * Query multiple registry values with a signle call.
1279  *
1280  * PARAMS
1281  *  RelativeTo [I] Registry path that Path refers to
1282  *  Path       [I] Path to key
1283  *
1284  * RETURNS
1285  *  STATUS_SUCCESS if the specified key exists, or an NTSTATUS error code.
1286  */
1287 NTSTATUS WINAPI RtlCheckRegistryKey(IN ULONG RelativeTo, IN PWSTR Path)
1288 {
1289     HANDLE handle;
1290     NTSTATUS status;
1291
1292     TRACE("(%d, %s)\n", RelativeTo, debugstr_w(Path));
1293
1294     if((!RelativeTo) && Path == NULL)
1295         return STATUS_OBJECT_PATH_SYNTAX_BAD;
1296     if(RelativeTo & RTL_REGISTRY_HANDLE)
1297         return STATUS_SUCCESS;
1298
1299     status = RTL_GetKeyHandle(RelativeTo, Path, &handle);
1300     if (handle) NtClose(handle);
1301     if (status == STATUS_INVALID_HANDLE) status = STATUS_OBJECT_NAME_NOT_FOUND;
1302     return status;
1303 }
1304
1305 /*************************************************************************
1306  * RtlDeleteRegistryValue   [NTDLL.@]
1307  *
1308  * Query multiple registry values with a signle call.
1309  *
1310  * PARAMS
1311  *  RelativeTo [I] Registry path that Path refers to
1312  *  Path       [I] Path to key
1313  *  ValueName  [I] Name of the value to delete
1314  *
1315  * RETURNS
1316  *  STATUS_SUCCESS if the specified key is successfully deleted, or an NTSTATUS error code.
1317  */
1318 NTSTATUS WINAPI RtlDeleteRegistryValue(IN ULONG RelativeTo, IN PCWSTR Path, IN PCWSTR ValueName)
1319 {
1320     NTSTATUS status;
1321     HANDLE handle;
1322     UNICODE_STRING Value;
1323
1324     TRACE("(%d, %s, %s)\n", RelativeTo, debugstr_w(Path), debugstr_w(ValueName));
1325
1326     RtlInitUnicodeString(&Value, ValueName);
1327     if(RelativeTo == RTL_REGISTRY_HANDLE)
1328     {
1329         return NtDeleteValueKey((HANDLE)Path, &Value);
1330     }
1331     status = RTL_GetKeyHandle(RelativeTo, Path, &handle);
1332     if (status) return status;
1333     status = NtDeleteValueKey(handle, &Value);
1334     NtClose(handle);
1335     return status;
1336 }