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                     if (reply->namelen < wine_server_reply_size(reply))
 275                     {
 276                         keyinfo.ClassLength = wine_server_reply_size(reply) - reply->namelen;
 277                         keyinfo.ClassOffset = fixed_size + reply->namelen;
 278                     }
 279                     else
 280                     {
 281                         keyinfo.ClassLength = 0;
 282                         keyinfo.ClassOffset = -1;
 283                     }
 284                     keyinfo.NameLength = reply->namelen;
 285                     memcpy( info, &keyinfo, min( length, fixed_size ) );
 286                 }
 287                 break;
 288             }
 289             *result_len = fixed_size + reply->total;
 290             if (length < *result_len) ret = STATUS_BUFFER_OVERFLOW;
 291         }
 292     }
 293     SERVER_END_REQ;
 294     return ret;
 295 }
 296
 297
 298
 299 /******************************************************************************
 300  * NtEnumerateKey [NTDLL.@]
 301  * ZwEnumerateKey [NTDLL.@]
 302  *
 303  * NOTES
 304  *  the name copied into the buffer is NOT 0-terminated
 305  */
 306 NTSTATUS WINAPI NtEnumerateKey( HANDLE handle, ULONG index, KEY_INFORMATION_CLASS info_class,
 307                                 void *info, DWORD length, DWORD *result_len )
 308 {
 309     /* -1 means query key, so avoid it here */
 310     if (index == (ULONG)-1) return STATUS_NO_MORE_ENTRIES;
 311     return enumerate_key( handle, index, info_class, info, length, result_len );
 312 }
 313
 314
 315 /******************************************************************************
 316  * RtlpNtEnumerateSubKey [NTDLL.@]
 317  *
 318  */
 319 NTSTATUS WINAPI RtlpNtEnumerateSubKey( HANDLE handle, UNICODE_STRING *out, ULONG index )
 320 {
 321   KEY_BASIC_INFORMATION *info;
 322   DWORD dwLen, dwResultLen;
 323   NTSTATUS ret;
 324
 325   if (out->Length)
 326   {
 327     dwLen = out->Length + sizeof(KEY_BASIC_INFORMATION);
 328     info = (KEY_BASIC_INFORMATION*)RtlAllocateHeap( GetProcessHeap(), 0, dwLen );
 329     if (!info)
 330       return STATUS_NO_MEMORY;
 331   }
 332   else
 333   {
 334     dwLen = 0;
 335     info = NULL;
 336   }
 337
 338   ret = NtEnumerateKey( handle, index, KeyBasicInformation, info, dwLen, &dwResultLen );
 339   dwResultLen -= sizeof(KEY_BASIC_INFORMATION);
 340
 341   if (ret == STATUS_BUFFER_OVERFLOW)
 342     out->Length = dwResultLen;
 343   else if (!ret)
 344   {
 345     if (out->Length < info->NameLength)
 346     {
 347       out->Length = dwResultLen;
 348       ret = STATUS_BUFFER_OVERFLOW;
 349     }
 350     else
 351     {
 352       out->Length = info->NameLength;
 353       memcpy(out->Buffer, info->Name, info->NameLength);
 354     }
 355   }
 356
 357   RtlFreeHeap( GetProcessHeap(), 0, info );
 358   return ret;
 359 }
 360
 361 /******************************************************************************
 362  * NtQueryKey [NTDLL.@]
 363  * ZwQueryKey [NTDLL.@]
 364  */
 365 NTSTATUS WINAPI NtQueryKey( HANDLE handle, KEY_INFORMATION_CLASS info_class,
 366                             void *info, DWORD length, DWORD *result_len )
 367 {
 368     return enumerate_key( handle, -1, info_class, info, length, result_len );
 369 }
 370
 371
 372 /* fill the key value info structure for a specific info class */
 373 static void copy_key_value_info( KEY_VALUE_INFORMATION_CLASS info_class, void *info,
 374                                  DWORD length, int type, int name_len, int data_len )
 375 {
 376     switch(info_class)
 377     {
 378     case KeyValueBasicInformation:
 379         {
 380             KEY_VALUE_BASIC_INFORMATION keyinfo;
 381             keyinfo.TitleIndex = 0;
 382             keyinfo.Type       = type;
 383             keyinfo.NameLength = name_len;
 384             length = min( length, (char *)keyinfo.Name - (char *)&keyinfo );
 385             memcpy( info, &keyinfo, length );
 386             break;
 387         }
 388     case KeyValueFullInformation:
 389         {
 390             KEY_VALUE_FULL_INFORMATION keyinfo;
 391             keyinfo.TitleIndex = 0;
 392             keyinfo.Type       = type;
 393             keyinfo.DataOffset = (char *)keyinfo.Name - (char *)&keyinfo + name_len;
 394             keyinfo.DataLength = data_len;
 395             keyinfo.NameLength = name_len;
 396             length = min( length, (char *)keyinfo.Name - (char *)&keyinfo );
 397             memcpy( info, &keyinfo, length );
 398             break;
 399         }
 400     case KeyValuePartialInformation:
 401         {
 402             KEY_VALUE_PARTIAL_INFORMATION keyinfo;
 403             keyinfo.TitleIndex = 0;
 404             keyinfo.Type       = type;
 405             keyinfo.DataLength = data_len;
 406             length = min( length, (char *)keyinfo.Data - (char *)&keyinfo );
 407             memcpy( info, &keyinfo, length );
 408             break;
 409         }
 410     default:
 411         break;
 412     }
 413 }
 414
 415
 416 /******************************************************************************
 417  *  NtEnumerateValueKey [NTDLL.@]
 418  *  ZwEnumerateValueKey [NTDLL.@]
 419  */
 420 NTSTATUS WINAPI NtEnumerateValueKey( HANDLE handle, ULONG index,
 421                                      KEY_VALUE_INFORMATION_CLASS info_class,
 422                                      void *info, DWORD length, DWORD *result_len )
 423 {
 424     NTSTATUS ret;
 425     void *ptr;
 426     size_t fixed_size;
 427
 428     TRACE( "(%p,%u,%d,%p,%d)\n", handle, index, info_class, info, length );
 429
 430     /* compute the length we want to retrieve */
 431     switch(info_class)
 432     {
 433     case KeyValueBasicInformation:   ptr = ((KEY_VALUE_BASIC_INFORMATION *)info)->Name; break;
 434     case KeyValueFullInformation:    ptr = ((KEY_VALUE_FULL_INFORMATION *)info)->Name; break;
 435     case KeyValuePartialInformation: ptr = ((KEY_VALUE_PARTIAL_INFORMATION *)info)->Data; break;
 436     default:
 437         FIXME( "Information class %d not implemented\n", info_class );
 438         return STATUS_INVALID_PARAMETER;
 439     }
 440     fixed_size = (char *)ptr - (char *)info;
 441
 442     SERVER_START_REQ( enum_key_value )
 443     {
 444         req->hkey       = handle;
 445         req->index      = index;
 446         req->info_class = info_class;
 447         if (length > fixed_size) wine_server_set_reply( req, ptr, length - fixed_size );
 448         if (!(ret = wine_server_call( req )))
 449         {
 450             copy_key_value_info( info_class, info, length, reply->type, reply->namelen,
 451                                  wine_server_reply_size(reply) - reply->namelen );
 452             *result_len = fixed_size + reply->total;
 453             if (length < *result_len) ret = STATUS_BUFFER_OVERFLOW;
 454         }
 455     }
 456     SERVER_END_REQ;
 457     return ret;
 458 }
 459
 460
 461 /******************************************************************************
 462  * NtQueryValueKey [NTDLL.@]
 463  * ZwQueryValueKey [NTDLL.@]
 464  *
 465  * NOTES
 466  *  the name in the KeyValueInformation is never set
 467  */
 468 NTSTATUS WINAPI NtQueryValueKey( HANDLE handle, const UNICODE_STRING *name,
 469                                  KEY_VALUE_INFORMATION_CLASS info_class,
 470                                  void *info, DWORD length, DWORD *result_len )
 471 {
 472     NTSTATUS ret;
 473     UCHAR *data_ptr;
 474     unsigned int fixed_size = 0;
 475
 476     TRACE( "(%p,%s,%d,%p,%d)\n", handle, debugstr_us(name), info_class, info, length );
 477
 478     if (name->Length > MAX_NAME_LENGTH) return STATUS_BUFFER_OVERFLOW;
 479
 480     /* compute the length we want to retrieve */
 481     switch(info_class)
 482     {
 483     case KeyValueBasicInformation:
 484         fixed_size = (char *)((KEY_VALUE_BASIC_INFORMATION *)info)->Name - (char *)info;
 485         data_ptr = NULL;
 486         break;
 487     case KeyValueFullInformation:
 488         data_ptr = (UCHAR *)((KEY_VALUE_FULL_INFORMATION *)info)->Name;
 489         fixed_size = (char *)data_ptr - (char *)info;
 490         break;
 491     case KeyValuePartialInformation:
 492         data_ptr = ((KEY_VALUE_PARTIAL_INFORMATION *)info)->Data;
 493         fixed_size = (char *)data_ptr - (char *)info;
 494         break;
 495     default:
 496         FIXME( "Information class %d not implemented\n", info_class );
 497         return STATUS_INVALID_PARAMETER;
 498     }
 499
 500     SERVER_START_REQ( get_key_value )
 501     {
 502         req->hkey = handle;
 503         wine_server_add_data( req, name->Buffer, name->Length );
 504         if (length > fixed_size) wine_server_set_reply( req, data_ptr, length - fixed_size );
 505         if (!(ret = wine_server_call( req )))
 506         {
 507             copy_key_value_info( info_class, info, length, reply->type,
 508                                  name->Length, reply->total );
 509             *result_len = fixed_size + reply->total;
 510             if (length < *result_len) ret = STATUS_BUFFER_OVERFLOW;
 511         }
 512     }
 513     SERVER_END_REQ;
 514     return ret;
 515 }
 516
 517 /******************************************************************************
 518  * RtlpNtQueryValueKey [NTDLL.@]
 519  *
 520  */
 521 NTSTATUS WINAPI RtlpNtQueryValueKey( HANDLE handle, ULONG *result_type, PBYTE dest,
 522                                      DWORD *result_len )
 523 {
 524     KEY_VALUE_PARTIAL_INFORMATION *info;
 525     UNICODE_STRING name;
 526     NTSTATUS ret;
 527     DWORD dwResultLen;
 528     DWORD dwLen = sizeof (KEY_VALUE_PARTIAL_INFORMATION) + (result_len ? *result_len : 0);
 529
 530     info = (KEY_VALUE_PARTIAL_INFORMATION*)RtlAllocateHeap( GetProcessHeap(), 0, dwLen );
 531     if (!info)
 532       return STATUS_NO_MEMORY;
 533
 534     name.Length = 0;
 535     ret = NtQueryValueKey( handle, &name, KeyValuePartialInformation, info, dwLen, &dwResultLen );
 536
 537     if (!ret || ret == STATUS_BUFFER_OVERFLOW)
 538     {
 539         if (result_len)
 540             *result_len = info->DataLength;
 541
 542         if (result_type)
 543             *result_type = info->Type;
 544
 545         if (ret != STATUS_BUFFER_OVERFLOW)
 546             memcpy( dest, info->Data, info->DataLength );
 547     }
 548
 549     RtlFreeHeap( GetProcessHeap(), 0, info );
 550     return ret;
 551 }
 552
 553 /******************************************************************************
 554  *  NtFlushKey  [NTDLL.@]
 555  *  ZwFlushKey  [NTDLL.@]
 556  */
 557 NTSTATUS WINAPI NtFlushKey(HANDLE key)
 558 {
 559     NTSTATUS ret;
 560
 561     TRACE("key=%p\n", key);
 562
 563     SERVER_START_REQ( flush_key )
 564     {
 565         req->hkey = key;
 566         ret = wine_server_call( req );
 567     }
 568     SERVER_END_REQ;
 569
 570     return ret;
 571 }
 572
 573 /******************************************************************************
 574  *  NtLoadKey   [NTDLL.@]
 575  *  ZwLoadKey   [NTDLL.@]
 576  */
 577 NTSTATUS WINAPI NtLoadKey( const OBJECT_ATTRIBUTES *attr, OBJECT_ATTRIBUTES *file )
 578 {
 579     NTSTATUS ret;
 580     HANDLE hive;
 581     IO_STATUS_BLOCK io;
 582
 583     TRACE("(%p,%p)\n", attr, file);
 584
 585     ret = NtCreateFile(&hive, GENERIC_READ, file, &io, NULL, FILE_ATTRIBUTE_NORMAL, 0,
 586                        FILE_OPEN, 0, NULL, 0);
 587     if (ret) return ret;
 588
 589     SERVER_START_REQ( load_registry )
 590     {
 591         req->hkey = attr->RootDirectory;
 592         req->file = hive;
 593         wine_server_add_data(req, attr->ObjectName->Buffer, attr->ObjectName->Length);
 594         ret = wine_server_call( req );
 595     }
 596     SERVER_END_REQ;
 597
 598     NtClose(hive);
 599
 600     return ret;
 601 }
 602
 603 /******************************************************************************
 604  *  NtNotifyChangeKey   [NTDLL.@]
 605  *  ZwNotifyChangeKey   [NTDLL.@]
 606  */
 607 NTSTATUS WINAPI NtNotifyChangeKey(
 608         IN HANDLE KeyHandle,
 609         IN HANDLE Event,
 610         IN PIO_APC_ROUTINE ApcRoutine OPTIONAL,
 611         IN PVOID ApcContext OPTIONAL,
 612         OUT PIO_STATUS_BLOCK IoStatusBlock,
 613         IN ULONG CompletionFilter,
 614         IN BOOLEAN Asynchronous,
 615         OUT PVOID ChangeBuffer,
 616         IN ULONG Length,
 617         IN BOOLEAN WatchSubtree)
 618 {
 619     NTSTATUS ret;
 620
 621     TRACE("(%p,%p,%p,%p,%p,0x%08x, 0x%08x,%p,0x%08x,0x%08x)\n",
 622         KeyHandle, Event, ApcRoutine, ApcContext, IoStatusBlock, CompletionFilter,
 623         Asynchronous, ChangeBuffer, Length, WatchSubtree);
 624
 625     if (ApcRoutine || ApcContext || ChangeBuffer || Length)
 626         FIXME("Unimplemented optional parameter\n");
 627
 628     if (!Asynchronous)
 629     {
 630         OBJECT_ATTRIBUTES attr;
 631         InitializeObjectAttributes( &attr, NULL, 0, NULL, NULL );
 632         ret = NtCreateEvent( &Event, EVENT_ALL_ACCESS, &attr, FALSE, FALSE );
 633         if (ret != STATUS_SUCCESS)
 634             return ret;
 635     }
 636
 637     SERVER_START_REQ( set_registry_notification )
 638     {
 639         req->hkey    = KeyHandle;
 640         req->event   = Event;
 641         req->subtree = WatchSubtree;
 642         req->filter  = CompletionFilter;
 643         ret = wine_server_call( req );
 644     }
 645     SERVER_END_REQ;
 646
 647     if (!Asynchronous)
 648     {
 649         if (ret == STATUS_SUCCESS)
 650             NtWaitForSingleObject( Event, FALSE, NULL );
 651         NtClose( Event );
 652     }
 653
 654     return STATUS_SUCCESS;
 655 }
 656
 657 /******************************************************************************
 658  * NtQueryMultipleValueKey [NTDLL]
 659  * ZwQueryMultipleValueKey
 660  */
 661
 662 NTSTATUS WINAPI NtQueryMultipleValueKey(
 663         HANDLE KeyHandle,
 664         PKEY_MULTIPLE_VALUE_INFORMATION ListOfValuesToQuery,
 665         ULONG NumberOfItems,
 666         PVOID MultipleValueInformation,
 667         ULONG Length,
 668         PULONG  ReturnLength)
 669 {
 670         FIXME("(%p,%p,0x%08x,%p,0x%08x,%p) stub!\n",
 671         KeyHandle, ListOfValuesToQuery, NumberOfItems, MultipleValueInformation,
 672         Length,ReturnLength);
 673         return STATUS_SUCCESS;
 674 }
 675
 676 /******************************************************************************
 677  * NtReplaceKey [NTDLL.@]
 678  * ZwReplaceKey [NTDLL.@]
 679  */
 680 NTSTATUS WINAPI NtReplaceKey(
 681         IN POBJECT_ATTRIBUTES ObjectAttributes,
 682         IN HANDLE Key,
 683         IN POBJECT_ATTRIBUTES ReplacedObjectAttributes)
 684 {
 685         FIXME("(%p),stub!\n", Key);
 686         dump_ObjectAttributes(ObjectAttributes);
 687         dump_ObjectAttributes(ReplacedObjectAttributes);
 688         return STATUS_SUCCESS;
 689 }
 690 /******************************************************************************
 691  * NtRestoreKey [NTDLL.@]
 692  * ZwRestoreKey [NTDLL.@]
 693  */
 694 NTSTATUS WINAPI NtRestoreKey(
 695         HANDLE KeyHandle,
 696         HANDLE FileHandle,
 697         ULONG RestoreFlags)
 698 {
 699         FIXME("(%p,%p,0x%08x) stub\n",
 700         KeyHandle, FileHandle, RestoreFlags);
 701         return STATUS_SUCCESS;
 702 }
 703 /******************************************************************************
 704  * NtSaveKey [NTDLL.@]
 705  * ZwSaveKey [NTDLL.@]
 706  */
 707 NTSTATUS WINAPI NtSaveKey(IN HANDLE KeyHandle, IN HANDLE FileHandle)
 708 {
 709     NTSTATUS ret;
 710
 711     TRACE("(%p,%p)\n", KeyHandle, FileHandle);
 712
 713     SERVER_START_REQ( save_registry )
 714     {
 715         req->hkey = KeyHandle;
 716         req->file = FileHandle;
 717         ret = wine_server_call( req );
 718     }
 719     SERVER_END_REQ;
 720
 721     return ret;
 722 }
 723 /******************************************************************************
 724  * NtSetInformationKey [NTDLL.@]
 725  * ZwSetInformationKey [NTDLL.@]
 726  */
 727 NTSTATUS WINAPI NtSetInformationKey(
 728         IN HANDLE KeyHandle,
 729         IN const int KeyInformationClass,
 730         IN PVOID KeyInformation,
 731         IN ULONG KeyInformationLength)
 732 {
 733         FIXME("(%p,0x%08x,%p,0x%08x) stub\n",
 734         KeyHandle, KeyInformationClass, KeyInformation, KeyInformationLength);
 735         return STATUS_SUCCESS;
 736 }
 737
 738
 739 /******************************************************************************
 740  * NtSetValueKey [NTDLL.@]
 741  * ZwSetValueKey [NTDLL.@]
 742  *
 743  * NOTES
 744  *   win95 does not care about count for REG_SZ and finds out the len by itself (js)
 745  *   NT does definitely care (aj)
 746  */
 747 NTSTATUS WINAPI NtSetValueKey( HANDLE hkey, const UNICODE_STRING *name, ULONG TitleIndex,
 748                                ULONG type, const void *data, ULONG count )
 749 {
 750     NTSTATUS ret;
 751
 752     TRACE( "(%p,%s,%d,%p,%d)\n", hkey, debugstr_us(name), type, data, count );
 753
 754     if (name->Length > MAX_NAME_LENGTH) return STATUS_BUFFER_OVERFLOW;
 755
 756     SERVER_START_REQ( set_key_value )
 757     {
 758         req->hkey    = hkey;
 759         req->type    = type;
 760         req->namelen = name->Length;
 761         wine_server_add_data( req, name->Buffer, name->Length );
 762         wine_server_add_data( req, data, count );
 763         ret = wine_server_call( req );
 764     }
 765     SERVER_END_REQ;
 766     return ret;
 767 }
 768
 769 /******************************************************************************
 770  * RtlpNtSetValueKey [NTDLL.@]
 771  *
 772  */
 773 NTSTATUS WINAPI RtlpNtSetValueKey( HANDLE hkey, ULONG type, const void *data,
 774                                    ULONG count )
 775 {
 776     UNICODE_STRING name;
 777
 778     name.Length = 0;
 779     return NtSetValueKey( hkey, &name, 0, type, data, count );
 780 }
 781
 782 /******************************************************************************
 783  * NtUnloadKey [NTDLL.@]
 784  * ZwUnloadKey [NTDLL.@]
 785  */
 786 NTSTATUS WINAPI NtUnloadKey(IN POBJECT_ATTRIBUTES attr)
 787 {
 788     NTSTATUS ret;
 789
 790     TRACE("(%p)\n", attr);
 791
 792     SERVER_START_REQ( unload_registry )
 793     {
 794         req->hkey = attr->RootDirectory;
 795         ret = wine_server_call(req);
 796     }
 797     SERVER_END_REQ;
 798
 799     return ret;
 800 }
 801
 802 /******************************************************************************
 803  *  RtlFormatCurrentUserKeyPath         [NTDLL.@]
 804  *
 805  */
 806 NTSTATUS WINAPI RtlFormatCurrentUserKeyPath( IN OUT PUNICODE_STRING KeyPath)
 807 {
 808     static const WCHAR pathW[] = {'\\','R','e','g','i','s','t','r','y','\\','U','s','e','r','\\'};
 809     HANDLE token;
 810     NTSTATUS status;
 811
 812     status = NtOpenThreadToken(GetCurrentThread(), TOKEN_READ, TRUE, &token);
 813     if (status == STATUS_NO_TOKEN)
 814         status = NtOpenProcessToken(GetCurrentProcess(), TOKEN_READ, &token);
 815     if (status == STATUS_SUCCESS)
 816     {
 817         char buffer[sizeof(TOKEN_USER) + sizeof(SID) + sizeof(DWORD)*SID_MAX_SUB_AUTHORITIES];
 818         DWORD len = sizeof(buffer);
 819
 820         status = NtQueryInformationToken(token, TokenUser, buffer, len, &len);
 821         if (status == STATUS_SUCCESS)
 822         {
 823             KeyPath->MaximumLength = 0;
 824             status = RtlConvertSidToUnicodeString(KeyPath, ((TOKEN_USER *)buffer)->User.Sid, FALSE);
 825             if (status == STATUS_BUFFER_OVERFLOW)
 826             {
 827                 PWCHAR buf = RtlAllocateHeap(GetProcessHeap(), 0,
 828                                              sizeof(pathW) + KeyPath->Length + sizeof(WCHAR));
 829                 if (buf)
 830                 {
 831                     memcpy(buf, pathW, sizeof(pathW));
 832                     KeyPath->MaximumLength = KeyPath->Length + sizeof(WCHAR);
 833                     KeyPath->Buffer = (PWCHAR)((LPBYTE)buf + sizeof(pathW));
 834                     status = RtlConvertSidToUnicodeString(KeyPath,
 835                                                           ((TOKEN_USER *)buffer)->User.Sid, FALSE);
 836                     KeyPath->Buffer = buf;
 837                     KeyPath->Length += sizeof(pathW);
 838                     KeyPath->MaximumLength += sizeof(pathW);
 839                 }
 840                 else
 841                     status = STATUS_NO_MEMORY;
 842             }
 843         }
 844         NtClose(token);
 845     }
 846     return status;
 847 }
 848
 849 /******************************************************************************
 850  *  RtlOpenCurrentUser          [NTDLL.@]
 851  *
 852  * NOTES
 853  *  If we return just HKEY_CURRENT_USER the advapi tries to find a remote
 854  *  registry (odd handle) and fails.
 855  */
 856 NTSTATUS WINAPI RtlOpenCurrentUser(
 857         IN ACCESS_MASK DesiredAccess, /* [in] */
 858         OUT PHANDLE KeyHandle)        /* [out] handle of HKEY_CURRENT_USER */
 859 {
 860         OBJECT_ATTRIBUTES ObjectAttributes;
 861         UNICODE_STRING ObjectName;
 862         NTSTATUS ret;
 863
 864         TRACE("(0x%08x, %p)\n",DesiredAccess, KeyHandle);
 865
 866         if ((ret = RtlFormatCurrentUserKeyPath(&ObjectName))) return ret;
 867         InitializeObjectAttributes(&ObjectAttributes,&ObjectName,OBJ_CASE_INSENSITIVE,0, NULL);
 868         ret = NtCreateKey(KeyHandle, DesiredAccess, &ObjectAttributes, 0, NULL, 0, NULL);
 869         RtlFreeUnicodeString(&ObjectName);
 870         return ret;
 871 }
 872
 873
 874 static NTSTATUS RTL_ReportRegistryValue(PKEY_VALUE_FULL_INFORMATION pInfo,
 875                                         PRTL_QUERY_REGISTRY_TABLE pQuery, PVOID pContext, PVOID pEnvironment)
 876 {
 877     PUNICODE_STRING str;
 878     UNICODE_STRING src, dst;
 879     LONG *bin;
 880     ULONG offset;
 881     PWSTR wstr;
 882     DWORD res;
 883     NTSTATUS status = STATUS_SUCCESS;
 884     ULONG len;
 885     LPWSTR String;
 886     INT count = 0;
 887
 888     if (pInfo == NULL)
 889     {
 890         if (pQuery->Flags & RTL_QUERY_REGISTRY_DIRECT)
 891             return STATUS_INVALID_PARAMETER;
 892         else
 893         {
 894             status = pQuery->QueryRoutine(pQuery->Name, pQuery->DefaultType, pQuery->DefaultData,
 895                                           pQuery->DefaultLength, pContext, pQuery->EntryContext);
 896         }
 897         return status;
 898     }
 899     len = pInfo->DataLength;
 900
 901     if (pQuery->Flags & RTL_QUERY_REGISTRY_DIRECT)
 902     {
 903         str = (PUNICODE_STRING)pQuery->EntryContext;
 904
 905         switch(pInfo->Type)
 906         {
 907         case REG_EXPAND_SZ:
 908             if (!(pQuery->Flags & RTL_QUERY_REGISTRY_NOEXPAND))
 909             {
 910                 RtlInitUnicodeString(&src, (WCHAR*)(((CHAR*)pInfo) + pInfo->DataOffset));
 911                 res = 0;
 912                 dst.MaximumLength = 0;
 913                 RtlExpandEnvironmentStrings_U(pEnvironment, &src, &dst, &res);
 914                 dst.Length = 0;
 915                 dst.MaximumLength = res;
 916                 dst.Buffer = RtlAllocateHeap(GetProcessHeap(), 0, res * sizeof(WCHAR));
 917                 RtlExpandEnvironmentStrings_U(pEnvironment, &src, &dst, &res);
 918                 status = pQuery->QueryRoutine(pQuery->Name, pInfo->Type, dst.Buffer,
 919                                      dst.Length, pContext, pQuery->EntryContext);
 920                 RtlFreeHeap(GetProcessHeap(), 0, dst.Buffer);
 921             }
 922
 923         case REG_SZ:
 924         case REG_LINK:
 925             if (str->Buffer == NULL)
 926                 RtlCreateUnicodeString(str, (WCHAR*)(((CHAR*)pInfo) + pInfo->DataOffset));
 927             else
 928                 RtlAppendUnicodeToString(str, (WCHAR*)(((CHAR*)pInfo) + pInfo->DataOffset));
 929             break;
 930
 931         case REG_MULTI_SZ:
 932             if (!(pQuery->Flags & RTL_QUERY_REGISTRY_NOEXPAND))
 933                 return STATUS_INVALID_PARAMETER;
 934
 935             if (str->Buffer == NULL)
 936             {
 937                 str->Buffer = RtlAllocateHeap(GetProcessHeap(), 0, len);
 938                 str->MaximumLength = len;
 939             }
 940             len = min(len, str->MaximumLength);
 941             memcpy(str->Buffer, ((CHAR*)pInfo) + pInfo->DataOffset, len);
 942             str->Length = len;
 943             break;
 944
 945         default:
 946             bin = (LONG*)pQuery->EntryContext;
 947             if (pInfo->DataLength <= sizeof(ULONG))
 948                 memcpy(bin, ((CHAR*)pInfo) + pInfo->DataOffset,
 949                     pInfo->DataLength);
 950             else
 951             {
 952                 if (bin[0] <= sizeof(ULONG))
 953                 {
 954                     memcpy(&bin[1], ((CHAR*)pInfo) + pInfo->DataOffset,
 955                     min(-bin[0], pInfo->DataLength));
 956                 }
 957                 else
 958                 {
 959                    len = min(bin[0], pInfo->DataLength);
 960                     bin[1] = len;
 961                     bin[2] = pInfo->Type;
 962                     memcpy(&bin[3], ((CHAR*)pInfo) + pInfo->DataOffset, len);
 963                 }
 964            }
 965            break;
 966         }
 967     }
 968     else
 969     {
 970         if((pQuery->Flags & RTL_QUERY_REGISTRY_NOEXPAND) ||
 971            (pInfo->Type != REG_EXPAND_SZ && pInfo->Type != REG_MULTI_SZ))
 972         {
 973             status = pQuery->QueryRoutine(pInfo->Name, pInfo->Type,
 974                 ((CHAR*)pInfo) + pInfo->DataOffset, pInfo->DataLength,
 975                 pContext, pQuery->EntryContext);
 976         }
 977         else if (pInfo->Type == REG_EXPAND_SZ)
 978         {
 979             RtlInitUnicodeString(&src, (WCHAR*)(((CHAR*)pInfo) + pInfo->DataOffset));
 980             res = 0;
 981             dst.MaximumLength = 0;
 982             RtlExpandEnvironmentStrings_U(pEnvironment, &src, &dst, &res);
 983             dst.Length = 0;
 984             dst.MaximumLength = res;
 985             dst.Buffer = RtlAllocateHeap(GetProcessHeap(), 0, res * sizeof(WCHAR));
 986             RtlExpandEnvironmentStrings_U(pEnvironment, &src, &dst, &res);
 987             status = pQuery->QueryRoutine(pQuery->Name, pInfo->Type, dst.Buffer,
 988                                           dst.Length, pContext, pQuery->EntryContext);
 989             RtlFreeHeap(GetProcessHeap(), 0, dst.Buffer);
 990         }
 991         else /* REG_MULTI_SZ */
 992         {
 993             if(pQuery->Flags & RTL_QUERY_REGISTRY_NOEXPAND)
 994             {
 995                 for (offset = 0; offset <= pInfo->DataLength; offset += len + sizeof(WCHAR))
 996                     {
 997                     wstr = (WCHAR*)(((CHAR*)pInfo) + offset);
 998                     len = strlenW(wstr) * sizeof(WCHAR);
 999                     status = pQuery->QueryRoutine(pQuery->Name, pInfo->Type, wstr, len,
1000                         pContext, pQuery->EntryContext);
1001                     if(status != STATUS_SUCCESS && status != STATUS_BUFFER_TOO_SMALL)
1002                         return status;
1003                     }
1004             }
1005             else
1006             {
1007                 while(count<=pInfo->DataLength)
1008                 {
1009                     String = (WCHAR*)(((CHAR*)pInfo) + pInfo->DataOffset)+count;
1010                     count+=strlenW(String)+1;
1011                     RtlInitUnicodeString(&src, (WCHAR*)(((CHAR*)pInfo) + pInfo->DataOffset));
1012                     res = 0;
1013                     dst.MaximumLength = 0;
1014                     RtlExpandEnvironmentStrings_U(pEnvironment, &src, &dst, &res);
1015                     dst.Length = 0;
1016                     dst.MaximumLength = res;
1017                     dst.Buffer = RtlAllocateHeap(GetProcessHeap(), 0, res * sizeof(WCHAR));
1018                     RtlExpandEnvironmentStrings_U(pEnvironment, &src, &dst, &res);
1019                     status = pQuery->QueryRoutine(pQuery->Name, pInfo->Type, dst.Buffer,
1020                                                   dst.Length, pContext, pQuery->EntryContext);
1021                     RtlFreeHeap(GetProcessHeap(), 0, dst.Buffer);
1022                     if(status != STATUS_SUCCESS && status != STATUS_BUFFER_TOO_SMALL)
1023                         return status;
1024                 }
1025             }
1026         }
1027     }
1028     return status;
1029 }
1030
1031
1032 static NTSTATUS RTL_GetKeyHandle(ULONG RelativeTo, PCWSTR Path, PHANDLE handle)
1033 {
1034     UNICODE_STRING KeyString;
1035     OBJECT_ATTRIBUTES regkey;
1036     PCWSTR base;
1037     INT len;
1038     NTSTATUS status;
1039
1040     static const WCHAR empty[] = {0};
1041     static const WCHAR control[] = {'\\','R','e','g','i','s','t','r','y','\\','M','a','c','h','i','n','e',
1042     '\\','S','y','s','t','e','m','\\','C','u','r','r','e','n','t','C','o','n','t','r','o','l','S','e','t','\\',
1043     'C','o','n','t','r','o','l','\\',0};
1044
1045     static const WCHAR devicemap[] = {'\\','R','e','g','i','s','t','r','y','\\','M','a','c','h','i','n','e','\\',
1046     'H','a','r','d','w','a','r','e','\\','D','e','v','i','c','e','M','a','p','\\',0};
1047
1048     static const WCHAR services[] = {'\\','R','e','g','i','s','t','r','y','\\','M','a','c','h','i','n','e','\\',
1049     'S','y','s','t','e','m','\\','C','u','r','r','e','n','t','C','o','n','t','r','o','l','S','e','t','\\',
1050     'S','e','r','v','i','c','e','s','\\',0};
1051
1052     static const WCHAR user[] = {'\\','R','e','g','i','s','t','r','y','\\','U','s','e','r','\\',
1053     'C','u','r','r','e','n','t','U','s','e','r','\\',0};
1054
1055     static const WCHAR windows_nt[] = {'\\','R','e','g','i','s','t','r','y','\\','M','a','c','h','i','n','e','\\',
1056     'S','o','f','t','w','a','r','e','\\','M','i','c','r','o','s','o','f','t','\\',
1057     'W','i','n','d','o','w','s',' ','N','T','\\','C','u','r','r','e','n','t','V','e','r','s','i','o','n','\\',0};
1058
1059     switch (RelativeTo & 0xff)
1060     {
1061     case RTL_REGISTRY_ABSOLUTE:
1062         base = empty;
1063         break;
1064
1065     case RTL_REGISTRY_CONTROL:
1066         base = control;
1067         break;
1068
1069     case RTL_REGISTRY_DEVICEMAP:
1070         base = devicemap;
1071         break;
1072
1073     case RTL_REGISTRY_SERVICES:
1074         base = services;
1075         break;
1076
1077     case RTL_REGISTRY_USER:
1078         base = user;
1079         break;
1080
1081     case RTL_REGISTRY_WINDOWS_NT:
1082         base = windows_nt;
1083         break;
1084
1085     default:
1086         return STATUS_INVALID_PARAMETER;
1087     }
1088
1089     len = (strlenW(base) + strlenW(Path) + 1) * sizeof(WCHAR);
1090     KeyString.Buffer = RtlAllocateHeap(GetProcessHeap(), 0, len);
1091     if (KeyString.Buffer == NULL)
1092         return STATUS_NO_MEMORY;
1093
1094     strcpyW(KeyString.Buffer, base);
1095     strcatW(KeyString.Buffer, Path);
1096     KeyString.Length = len - sizeof(WCHAR);
1097     KeyString.MaximumLength = len;
1098     InitializeObjectAttributes(&regkey, &KeyString, OBJ_CASE_INSENSITIVE, NULL, NULL);
1099     status = NtOpenKey(handle, KEY_ALL_ACCESS, &regkey);
1100     RtlFreeHeap(GetProcessHeap(), 0, KeyString.Buffer);
1101     return status;
1102 }
1103
1104 /*************************************************************************
1105  * RtlQueryRegistryValues   [NTDLL.@]
1106  *
1107  * Query multiple registry values with a signle call.
1108  *
1109  * PARAMS
1110  *  RelativeTo  [I] Registry path that Path refers to
1111  *  Path        [I] Path to key
1112  *  QueryTable  [I] Table of key values to query
1113  *  Context     [I] Paremeter to pass to the application defined QueryRoutine function
1114  *  Environment [I] Optional parameter to use when performing expantion
1115  *
1116  * RETURNS
1117  *  STATUS_SUCCESS or an appropriate NTSTATUS error code.
1118  */
1119 NTSTATUS WINAPI RtlQueryRegistryValues(IN ULONG RelativeTo, IN PCWSTR Path,
1120                                        IN PRTL_QUERY_REGISTRY_TABLE QueryTable, IN PVOID Context,
1121                                        IN PVOID Environment OPTIONAL)
1122 {
1123     UNICODE_STRING Value;
1124     HANDLE handle, topkey;
1125     PKEY_VALUE_FULL_INFORMATION pInfo = NULL;
1126     ULONG len, buflen = 0;
1127     NTSTATUS status=STATUS_SUCCESS, ret = STATUS_SUCCESS;
1128     INT i;
1129
1130     TRACE("(%d, %s, %p, %p, %p)\n", RelativeTo, debugstr_w(Path), QueryTable, Context, Environment);
1131
1132     if(Path == NULL)
1133         return STATUS_INVALID_PARAMETER;
1134
1135     /* get a valid handle */
1136     if (RelativeTo & RTL_REGISTRY_HANDLE)
1137         topkey = handle = (HANDLE)Path;
1138     else
1139     {
1140         status = RTL_GetKeyHandle(RelativeTo, Path, &topkey);
1141         handle = topkey;
1142     }
1143     if(status != STATUS_SUCCESS)
1144         return status;
1145
1146     /* Process query table entries */
1147     for (; QueryTable->QueryRoutine != NULL || QueryTable->Name != NULL; ++QueryTable)
1148     {
1149         if (QueryTable->Flags &
1150             (RTL_QUERY_REGISTRY_SUBKEY | RTL_QUERY_REGISTRY_TOPKEY))
1151         {
1152             /* topkey must be kept open just in case we will reuse it later */
1153             if (handle != topkey)
1154                 NtClose(handle);
1155
1156             if (QueryTable->Flags & RTL_QUERY_REGISTRY_SUBKEY)
1157             {
1158                 handle = 0;
1159                 status = RTL_GetKeyHandle(PtrToUlong(QueryTable->Name), Path, &handle);
1160                 if(status != STATUS_SUCCESS)
1161                 {
1162                     ret = status;
1163                     goto out;
1164                 }
1165             }
1166             else
1167                 handle = topkey;
1168         }
1169
1170         if (QueryTable->Flags & RTL_QUERY_REGISTRY_NOVALUE)
1171         {
1172             QueryTable->QueryRoutine(QueryTable->Name, REG_NONE, NULL, 0,
1173                 Context, QueryTable->EntryContext);
1174             continue;
1175         }
1176
1177         if (!handle)
1178         {
1179             if (QueryTable->Flags & RTL_QUERY_REGISTRY_REQUIRED)
1180             {
1181                 ret = STATUS_OBJECT_NAME_NOT_FOUND;
1182                 goto out;
1183             }
1184             continue;
1185         }
1186
1187         if (QueryTable->Name == NULL)
1188         {
1189             if (QueryTable->Flags & RTL_QUERY_REGISTRY_DIRECT)
1190             {
1191                 ret = STATUS_INVALID_PARAMETER;
1192                 goto out;
1193             }
1194
1195             /* Report all subkeys */
1196             for (i = 0;; ++i)
1197             {
1198                 status = NtEnumerateValueKey(handle, i,
1199                     KeyValueFullInformation, pInfo, buflen, &len);
1200                 if (status == STATUS_NO_MORE_ENTRIES)
1201                     break;
1202                 if (status == STATUS_BUFFER_OVERFLOW ||
1203                     status == STATUS_BUFFER_TOO_SMALL)
1204                 {
1205                     buflen = len;
1206                     RtlFreeHeap(GetProcessHeap(), 0, pInfo);
1207                     pInfo = (KEY_VALUE_FULL_INFORMATION*)RtlAllocateHeap(
1208                         GetProcessHeap(), 0, buflen);
1209                     NtEnumerateValueKey(handle, i, KeyValueFullInformation,
1210                         pInfo, buflen, &len);
1211                 }
1212
1213                 status = RTL_ReportRegistryValue(pInfo, QueryTable, Context, Environment);
1214                 if(status != STATUS_SUCCESS && status != STATUS_BUFFER_TOO_SMALL)
1215                 {
1216                     ret = status;
1217                     goto out;
1218                 }
1219                 if (QueryTable->Flags & RTL_QUERY_REGISTRY_DELETE)
1220                 {
1221                     RtlInitUnicodeString(&Value, pInfo->Name);
1222                     NtDeleteValueKey(handle, &Value);
1223                 }
1224             }
1225
1226             if (i == 0  && (QueryTable->Flags & RTL_QUERY_REGISTRY_REQUIRED))
1227             {
1228                 ret = STATUS_OBJECT_NAME_NOT_FOUND;
1229                 goto out;
1230             }
1231         }
1232         else
1233         {
1234             RtlInitUnicodeString(&Value, QueryTable->Name);
1235             status = NtQueryValueKey(handle, &Value, KeyValueFullInformation,
1236                 pInfo, buflen, &len);
1237             if (status == STATUS_BUFFER_OVERFLOW ||
1238                 status == STATUS_BUFFER_TOO_SMALL)
1239             {
1240                 buflen = len;
1241                 RtlFreeHeap(GetProcessHeap(), 0, pInfo);
1242                 pInfo = (KEY_VALUE_FULL_INFORMATION*)RtlAllocateHeap(
1243                     GetProcessHeap(), 0, buflen);
1244                 status = NtQueryValueKey(handle, &Value,
1245                     KeyValueFullInformation, pInfo, buflen, &len);
1246             }
1247             if (status != STATUS_SUCCESS)
1248             {
1249                 if (QueryTable->Flags & RTL_QUERY_REGISTRY_REQUIRED)
1250                 {
1251                     ret = STATUS_OBJECT_NAME_NOT_FOUND;
1252                     goto out;
1253                 }
1254                 status = RTL_ReportRegistryValue(NULL, QueryTable, Context, Environment);
1255                 if(status != STATUS_SUCCESS && status != STATUS_BUFFER_TOO_SMALL)
1256                 {
1257                     ret = status;
1258                     goto out;
1259                 }
1260             }
1261             else
1262             {
1263                 status = RTL_ReportRegistryValue(pInfo, QueryTable, Context, Environment);
1264                 if(status != STATUS_SUCCESS && status != STATUS_BUFFER_TOO_SMALL)
1265                 {
1266                     ret = status;
1267                     goto out;
1268                 }
1269                 if (QueryTable->Flags & RTL_QUERY_REGISTRY_DELETE)
1270                     NtDeleteValueKey(handle, &Value);
1271             }
1272         }
1273     }
1274
1275 out:
1276     RtlFreeHeap(GetProcessHeap(), 0, pInfo);
1277     if (handle != topkey)
1278         NtClose(handle);
1279     NtClose(topkey);
1280     return ret;
1281 }
1282
1283 /*************************************************************************
1284  * RtlCheckRegistryKey   [NTDLL.@]
1285  *
1286  * Query multiple registry values with a signle call.
1287  *
1288  * PARAMS
1289  *  RelativeTo [I] Registry path that Path refers to
1290  *  Path       [I] Path to key
1291  *
1292  * RETURNS
1293  *  STATUS_SUCCESS if the specified key exists, or an NTSTATUS error code.
1294  */
1295 NTSTATUS WINAPI RtlCheckRegistryKey(IN ULONG RelativeTo, IN PWSTR Path)
1296 {
1297     HANDLE handle;
1298     NTSTATUS status;
1299
1300     TRACE("(%d, %s)\n", RelativeTo, debugstr_w(Path));
1301
1302     if((!RelativeTo) && Path == NULL)
1303         return STATUS_OBJECT_PATH_SYNTAX_BAD;
1304     if(RelativeTo & RTL_REGISTRY_HANDLE)
1305         return STATUS_SUCCESS;
1306
1307     status = RTL_GetKeyHandle(RelativeTo, Path, &handle);
1308     if (handle) NtClose(handle);
1309     if (status == STATUS_INVALID_HANDLE) status = STATUS_OBJECT_NAME_NOT_FOUND;
1310     return status;
1311 }
1312
1313 /*************************************************************************
1314  * RtlDeleteRegistryValue   [NTDLL.@]
1315  *
1316  * Query multiple registry values with a signle call.
1317  *
1318  * PARAMS
1319  *  RelativeTo [I] Registry path that Path refers to
1320  *  Path       [I] Path to key
1321  *  ValueName  [I] Name of the value to delete
1322  *
1323  * RETURNS
1324  *  STATUS_SUCCESS if the specified key is successfully deleted, or an NTSTATUS error code.
1325  */
1326 NTSTATUS WINAPI RtlDeleteRegistryValue(IN ULONG RelativeTo, IN PCWSTR Path, IN PCWSTR ValueName)
1327 {
1328     NTSTATUS status;
1329     HANDLE handle;
1330     UNICODE_STRING Value;
1331
1332     TRACE("(%d, %s, %s)\n", RelativeTo, debugstr_w(Path), debugstr_w(ValueName));
1333
1334     RtlInitUnicodeString(&Value, ValueName);
1335     if(RelativeTo == RTL_REGISTRY_HANDLE)
1336     {
1337         return NtDeleteValueKey((HANDLE)Path, &Value);
1338     }
1339     status = RTL_GetKeyHandle(RelativeTo, Path, &handle);
1340     if (status) return status;
1341     status = NtDeleteValueKey(handle, &Value);
1342     NtClose(handle);
1343     return status;
1344 }
1345
1346 /*************************************************************************
1347  * RtlWriteRegistryValue   [NTDLL.@]
1348  *
1349  * Sets the registry value with provided data.
1350  *
1351  * PARAMS
1352  *  RelativeTo [I] Registry path that path parameter refers to
1353  *  path       [I] Path to the key (or handle - see RTL_GetKeyHandle)
1354  *  name       [I] Name of the registry value to set
1355  *  type       [I] Type of the registry key to set
1356  *  data       [I] Pointer to the user data to be set
1357  *  length     [I] Length of the user data pointed by data
1358  *
1359  * RETURNS
1360  *  STATUS_SUCCESS if the specified key is successfully set,
1361  *  or an NTSTATUS error code.
1362  */
1363 NTSTATUS WINAPI RtlWriteRegistryValue( ULONG RelativeTo, PCWSTR path, PCWSTR name,
1364                                        ULONG type, PVOID data, ULONG length )
1365 {
1366     HANDLE hkey;
1367     NTSTATUS status;
1368     UNICODE_STRING str;
1369
1370     TRACE( "(%d, %s, %s) -> %d: %p [%d]\n", RelativeTo, debugstr_w(path), debugstr_w(name),
1371            type, data, length );
1372
1373     RtlInitUnicodeString( &str, name );
1374
1375     if (RelativeTo == RTL_REGISTRY_HANDLE)
1376         return NtSetValueKey( (HANDLE)path, &str, 0, type, data, length );
1377
1378     status = RTL_GetKeyHandle( RelativeTo, path, &hkey );
1379     if (status != STATUS_SUCCESS) return status;
1380
1381     status = NtSetValueKey( hkey, &str, 0, type, data, length );
1382     NtClose( hkey );
1383
1384     return status;
1385 }