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     = wine_server_obj_handle( attr->RootDirectory );
  68         req->access     = access;
  69         req->attributes = attr->Attributes;
  70         req->options    = options;
  71         req->namelen    = attr->ObjectName->Length;
  72         wine_server_add_data( req, attr->ObjectName->Buffer, attr->ObjectName->Length );
  73         if (class) wine_server_add_data( req, class->Buffer, class->Length );
  74         if (!(ret = wine_server_call( req )))
  75         {
  76             *retkey = wine_server_ptr_handle( reply->hkey );
  77             if (dispos) *dispos = reply->created ? REG_CREATED_NEW_KEY : REG_OPENED_EXISTING_KEY;
  78         }
  79     }
  80     SERVER_END_REQ;
  81     TRACE("<- %p\n", *retkey);
  82     return ret;
  83 }
  84
  85 /******************************************************************************
  86  *  RtlpNtCreateKey [NTDLL.@]
  87  *
  88  *  See NtCreateKey.
  89  */
  90 NTSTATUS WINAPI RtlpNtCreateKey( PHANDLE retkey, ACCESS_MASK access, const OBJECT_ATTRIBUTES *attr,
  91                                  ULONG TitleIndex, const UNICODE_STRING *class, ULONG options,
  92                                  PULONG dispos )
  93 {
  94     OBJECT_ATTRIBUTES oa;
  95
  96     if (attr)
  97     {
  98         oa = *attr;
  99         oa.Attributes &= ~(OBJ_PERMANENT|OBJ_EXCLUSIVE);
 100         attr = &oa;
 101     }
 102
 103     return NtCreateKey(retkey, access, attr, 0, NULL, 0, dispos);
 104 }
 105
 106 /******************************************************************************
 107  * NtOpenKey [NTDLL.@]
 108  * ZwOpenKey [NTDLL.@]
 109  *
 110  *   OUT        HANDLE                  retkey (returns 0 when failure)
 111  *   IN         ACCESS_MASK             access
 112  *   IN         POBJECT_ATTRIBUTES      attr
 113  */
 114 NTSTATUS WINAPI NtOpenKey( PHANDLE retkey, ACCESS_MASK access, const OBJECT_ATTRIBUTES *attr )
 115 {
 116     NTSTATUS ret;
 117     DWORD len = attr->ObjectName->Length;
 118
 119     TRACE( "(%p,%s,%x,%p)\n", attr->RootDirectory,
 120            debugstr_us(attr->ObjectName), access, retkey );
 121
 122     if (len > MAX_NAME_LENGTH) return STATUS_BUFFER_OVERFLOW;
 123     if (!retkey) return STATUS_INVALID_PARAMETER;
 124
 125     SERVER_START_REQ( open_key )
 126     {
 127         req->parent     = wine_server_obj_handle( attr->RootDirectory );
 128         req->access     = access;
 129         req->attributes = attr->Attributes;
 130         wine_server_add_data( req, attr->ObjectName->Buffer, len );
 131         ret = wine_server_call( req );
 132         *retkey = wine_server_ptr_handle( reply->hkey );
 133     }
 134     SERVER_END_REQ;
 135     TRACE("<- %p\n", *retkey);
 136     return ret;
 137 }
 138
 139 /******************************************************************************
 140  * RtlpNtOpenKey [NTDLL.@]
 141  *
 142  * See NtOpenKey.
 143  */
 144 NTSTATUS WINAPI RtlpNtOpenKey( PHANDLE retkey, ACCESS_MASK access, OBJECT_ATTRIBUTES *attr )
 145 {
 146     if (attr)
 147         attr->Attributes &= ~(OBJ_PERMANENT|OBJ_EXCLUSIVE);
 148     return NtOpenKey(retkey, access, attr);
 149 }
 150
 151 /******************************************************************************
 152  * NtDeleteKey [NTDLL.@]
 153  * ZwDeleteKey [NTDLL.@]
 154  */
 155 NTSTATUS WINAPI NtDeleteKey( HANDLE hkey )
 156 {
 157     NTSTATUS ret;
 158
 159     TRACE( "(%p)\n", hkey );
 160
 161     SERVER_START_REQ( delete_key )
 162     {
 163         req->hkey = wine_server_obj_handle( hkey );
 164         ret = wine_server_call( req );
 165     }
 166     SERVER_END_REQ;
 167     return ret;
 168 }
 169
 170 /******************************************************************************
 171  * RtlpNtMakeTemporaryKey [NTDLL.@]
 172  *
 173  *  See NtDeleteKey.
 174  */
 175 NTSTATUS WINAPI RtlpNtMakeTemporaryKey( HANDLE hkey )
 176 {
 177     return NtDeleteKey(hkey);
 178 }
 179
 180 /******************************************************************************
 181  * NtDeleteValueKey [NTDLL.@]
 182  * ZwDeleteValueKey [NTDLL.@]
 183  */
 184 NTSTATUS WINAPI NtDeleteValueKey( HANDLE hkey, const UNICODE_STRING *name )
 185 {
 186     NTSTATUS ret;
 187
 188     TRACE( "(%p,%s)\n", hkey, debugstr_us(name) );
 189     if (name->Length > MAX_NAME_LENGTH) return STATUS_BUFFER_OVERFLOW;
 190
 191     SERVER_START_REQ( delete_key_value )
 192     {
 193         req->hkey = wine_server_obj_handle( hkey );
 194         wine_server_add_data( req, name->Buffer, name->Length );
 195         ret = wine_server_call( req );
 196     }
 197     SERVER_END_REQ;
 198     return ret;
 199 }
 200
 201
 202 /******************************************************************************
 203  *     enumerate_key
 204  *
 205  * Implementation of NtQueryKey and NtEnumerateKey
 206  */
 207 static NTSTATUS enumerate_key( HANDLE handle, int index, KEY_INFORMATION_CLASS info_class,
 208                                void *info, DWORD length, DWORD *result_len )
 209
 210 {
 211     NTSTATUS ret;
 212     void *data_ptr;
 213     size_t fixed_size;
 214
 215     switch(info_class)
 216     {
 217     case KeyBasicInformation: data_ptr = ((KEY_BASIC_INFORMATION *)info)->Name; break;
 218     case KeyFullInformation:  data_ptr = ((KEY_FULL_INFORMATION *)info)->Class; break;
 219     case KeyNodeInformation:  data_ptr = ((KEY_NODE_INFORMATION *)info)->Name;  break;
 220     default:
 221         FIXME( "Information class %d not implemented\n", info_class );
 222         return STATUS_INVALID_PARAMETER;
 223     }
 224     fixed_size = (char *)data_ptr - (char *)info;
 225
 226     SERVER_START_REQ( enum_key )
 227     {
 228         req->hkey       = wine_server_obj_handle( handle );
 229         req->index      = index;
 230         req->info_class = info_class;
 231         if (length > fixed_size) wine_server_set_reply( req, data_ptr, length - fixed_size );
 232         if (!(ret = wine_server_call( req )))
 233         {
 234             switch(info_class)
 235             {
 236             case KeyBasicInformation:
 237                 {
 238                     KEY_BASIC_INFORMATION keyinfo;
 239                     fixed_size = (char *)keyinfo.Name - (char *)&keyinfo;
 240                     keyinfo.LastWriteTime.QuadPart = reply->modif;
 241                     keyinfo.TitleIndex = 0;
 242                     keyinfo.NameLength = reply->namelen;
 243                     memcpy( info, &keyinfo, min( length, fixed_size ) );
 244                 }
 245                 break;
 246             case KeyFullInformation:
 247                 {
 248                     KEY_FULL_INFORMATION keyinfo;
 249                     fixed_size = (char *)keyinfo.Class - (char *)&keyinfo;
 250                     keyinfo.LastWriteTime.QuadPart = reply->modif;
 251                     keyinfo.TitleIndex = 0;
 252                     keyinfo.ClassLength = wine_server_reply_size(reply);
 253                     keyinfo.ClassOffset = keyinfo.ClassLength ? fixed_size : -1;
 254                     keyinfo.SubKeys = reply->subkeys;
 255                     keyinfo.MaxNameLen = reply->max_subkey;
 256                     keyinfo.MaxClassLen = reply->max_class;
 257                     keyinfo.Values = reply->values;
 258                     keyinfo.MaxValueNameLen = reply->max_value;
 259                     keyinfo.MaxValueDataLen = reply->max_data;
 260                     memcpy( info, &keyinfo, min( length, fixed_size ) );
 261                 }
 262                 break;
 263             case KeyNodeInformation:
 264                 {
 265                     KEY_NODE_INFORMATION keyinfo;
 266                     fixed_size = (char *)keyinfo.Name - (char *)&keyinfo;
 267                     keyinfo.LastWriteTime.QuadPart = reply->modif;
 268                     keyinfo.TitleIndex = 0;
 269                     if (reply->namelen < wine_server_reply_size(reply))
 270                     {
 271                         keyinfo.ClassLength = wine_server_reply_size(reply) - reply->namelen;
 272                         keyinfo.ClassOffset = fixed_size + reply->namelen;
 273                     }
 274                     else
 275                     {
 276                         keyinfo.ClassLength = 0;
 277                         keyinfo.ClassOffset = -1;
 278                     }
 279                     keyinfo.NameLength = reply->namelen;
 280                     memcpy( info, &keyinfo, min( length, fixed_size ) );
 281                 }
 282                 break;
 283             }
 284             *result_len = fixed_size + reply->total;
 285             if (length < *result_len) ret = STATUS_BUFFER_OVERFLOW;
 286         }
 287     }
 288     SERVER_END_REQ;
 289     return ret;
 290 }
 291
 292
 293
 294 /******************************************************************************
 295  * NtEnumerateKey [NTDLL.@]
 296  * ZwEnumerateKey [NTDLL.@]
 297  *
 298  * NOTES
 299  *  the name copied into the buffer is NOT 0-terminated
 300  */
 301 NTSTATUS WINAPI NtEnumerateKey( HANDLE handle, ULONG index, KEY_INFORMATION_CLASS info_class,
 302                                 void *info, DWORD length, DWORD *result_len )
 303 {
 304     /* -1 means query key, so avoid it here */
 305     if (index == (ULONG)-1) return STATUS_NO_MORE_ENTRIES;
 306     return enumerate_key( handle, index, info_class, info, length, result_len );
 307 }
 308
 309
 310 /******************************************************************************
 311  * RtlpNtEnumerateSubKey [NTDLL.@]
 312  *
 313  */
 314 NTSTATUS WINAPI RtlpNtEnumerateSubKey( HANDLE handle, UNICODE_STRING *out, ULONG index )
 315 {
 316   KEY_BASIC_INFORMATION *info;
 317   DWORD dwLen, dwResultLen;
 318   NTSTATUS ret;
 319
 320   if (out->Length)
 321   {
 322     dwLen = out->Length + sizeof(KEY_BASIC_INFORMATION);
 323     info = RtlAllocateHeap( GetProcessHeap(), 0, dwLen );
 324     if (!info)
 325       return STATUS_NO_MEMORY;
 326   }
 327   else
 328   {
 329     dwLen = 0;
 330     info = NULL;
 331   }
 332
 333   ret = NtEnumerateKey( handle, index, KeyBasicInformation, info, dwLen, &dwResultLen );
 334   dwResultLen -= sizeof(KEY_BASIC_INFORMATION);
 335
 336   if (ret == STATUS_BUFFER_OVERFLOW)
 337     out->Length = dwResultLen;
 338   else if (!ret)
 339   {
 340     if (out->Length < info->NameLength)
 341     {
 342       out->Length = dwResultLen;
 343       ret = STATUS_BUFFER_OVERFLOW;
 344     }
 345     else
 346     {
 347       out->Length = info->NameLength;
 348       memcpy(out->Buffer, info->Name, info->NameLength);
 349     }
 350   }
 351
 352   RtlFreeHeap( GetProcessHeap(), 0, info );
 353   return ret;
 354 }
 355
 356 /******************************************************************************
 357  * NtQueryKey [NTDLL.@]
 358  * ZwQueryKey [NTDLL.@]
 359  */
 360 NTSTATUS WINAPI NtQueryKey( HANDLE handle, KEY_INFORMATION_CLASS info_class,
 361                             void *info, DWORD length, DWORD *result_len )
 362 {
 363     return enumerate_key( handle, -1, info_class, info, length, result_len );
 364 }
 365
 366
 367 /* fill the key value info structure for a specific info class */
 368 static void copy_key_value_info( KEY_VALUE_INFORMATION_CLASS info_class, void *info,
 369                                  DWORD length, int type, int name_len, int data_len )
 370 {
 371     switch(info_class)
 372     {
 373     case KeyValueBasicInformation:
 374         {
 375             KEY_VALUE_BASIC_INFORMATION keyinfo;
 376             keyinfo.TitleIndex = 0;
 377             keyinfo.Type       = type;
 378             keyinfo.NameLength = name_len;
 379             length = min( length, (char *)keyinfo.Name - (char *)&keyinfo );
 380             memcpy( info, &keyinfo, length );
 381             break;
 382         }
 383     case KeyValueFullInformation:
 384         {
 385             KEY_VALUE_FULL_INFORMATION keyinfo;
 386             keyinfo.TitleIndex = 0;
 387             keyinfo.Type       = type;
 388             keyinfo.DataOffset = (char *)keyinfo.Name - (char *)&keyinfo + name_len;
 389             keyinfo.DataLength = data_len;
 390             keyinfo.NameLength = name_len;
 391             length = min( length, (char *)keyinfo.Name - (char *)&keyinfo );
 392             memcpy( info, &keyinfo, length );
 393             break;
 394         }
 395     case KeyValuePartialInformation:
 396         {
 397             KEY_VALUE_PARTIAL_INFORMATION keyinfo;
 398             keyinfo.TitleIndex = 0;
 399             keyinfo.Type       = type;
 400             keyinfo.DataLength = data_len;
 401             length = min( length, (char *)keyinfo.Data - (char *)&keyinfo );
 402             memcpy( info, &keyinfo, length );
 403             break;
 404         }
 405     default:
 406         break;
 407     }
 408 }
 409
 410
 411 /******************************************************************************
 412  *  NtEnumerateValueKey [NTDLL.@]
 413  *  ZwEnumerateValueKey [NTDLL.@]
 414  */
 415 NTSTATUS WINAPI NtEnumerateValueKey( HANDLE handle, ULONG index,
 416                                      KEY_VALUE_INFORMATION_CLASS info_class,
 417                                      void *info, DWORD length, DWORD *result_len )
 418 {
 419     NTSTATUS ret;
 420     void *ptr;
 421     size_t fixed_size;
 422
 423     TRACE( "(%p,%u,%d,%p,%d)\n", handle, index, info_class, info, length );
 424
 425     /* compute the length we want to retrieve */
 426     switch(info_class)
 427     {
 428     case KeyValueBasicInformation:   ptr = ((KEY_VALUE_BASIC_INFORMATION *)info)->Name; break;
 429     case KeyValueFullInformation:    ptr = ((KEY_VALUE_FULL_INFORMATION *)info)->Name; break;
 430     case KeyValuePartialInformation: ptr = ((KEY_VALUE_PARTIAL_INFORMATION *)info)->Data; break;
 431     default:
 432         FIXME( "Information class %d not implemented\n", info_class );
 433         return STATUS_INVALID_PARAMETER;
 434     }
 435     fixed_size = (char *)ptr - (char *)info;
 436
 437     SERVER_START_REQ( enum_key_value )
 438     {
 439         req->hkey       = wine_server_obj_handle( handle );
 440         req->index      = index;
 441         req->info_class = info_class;
 442         if (length > fixed_size) wine_server_set_reply( req, ptr, length - fixed_size );
 443         if (!(ret = wine_server_call( req )))
 444         {
 445             copy_key_value_info( info_class, info, length, reply->type, reply->namelen,
 446                                  wine_server_reply_size(reply) - reply->namelen );
 447             *result_len = fixed_size + reply->total;
 448             if (length < *result_len) ret = STATUS_BUFFER_OVERFLOW;
 449         }
 450     }
 451     SERVER_END_REQ;
 452     return ret;
 453 }
 454
 455
 456 /******************************************************************************
 457  * NtQueryValueKey [NTDLL.@]
 458  * ZwQueryValueKey [NTDLL.@]
 459  *
 460  * NOTES
 461  *  the name in the KeyValueInformation is never set
 462  */
 463 NTSTATUS WINAPI NtQueryValueKey( HANDLE handle, const UNICODE_STRING *name,
 464                                  KEY_VALUE_INFORMATION_CLASS info_class,
 465                                  void *info, DWORD length, DWORD *result_len )
 466 {
 467     NTSTATUS ret;
 468     UCHAR *data_ptr;
 469     unsigned int fixed_size = 0;
 470
 471     TRACE( "(%p,%s,%d,%p,%d)\n", handle, debugstr_us(name), info_class, info, length );
 472
 473     if (name->Length > MAX_NAME_LENGTH) return STATUS_BUFFER_OVERFLOW;
 474
 475     /* compute the length we want to retrieve */
 476     switch(info_class)
 477     {
 478     case KeyValueBasicInformation:
 479     {
 480         KEY_VALUE_BASIC_INFORMATION *basic_info = info;
 481         if (FIELD_OFFSET(KEY_VALUE_BASIC_INFORMATION, Name) < length)
 482         {
 483             memcpy(basic_info->Name, name->Buffer,
 484                    min(length - FIELD_OFFSET(KEY_VALUE_BASIC_INFORMATION, Name), name->Length));
 485         }
 486         fixed_size = FIELD_OFFSET(KEY_VALUE_BASIC_INFORMATION, Name) + name->Length;
 487         data_ptr = NULL;
 488         break;
 489     }
 490     case KeyValueFullInformation:
 491     {
 492         KEY_VALUE_FULL_INFORMATION *full_info = info;
 493         if (FIELD_OFFSET(KEY_VALUE_FULL_INFORMATION, Name) < length)
 494         {
 495             memcpy(full_info->Name, name->Buffer,
 496                    min(length - FIELD_OFFSET(KEY_VALUE_FULL_INFORMATION, Name), name->Length));
 497         }
 498         data_ptr = (UCHAR *)full_info->Name + name->Length;
 499         fixed_size = (char *)data_ptr - (char *)info;
 500         break;
 501     }
 502     case KeyValuePartialInformation:
 503         data_ptr = ((KEY_VALUE_PARTIAL_INFORMATION *)info)->Data;
 504         fixed_size = (char *)data_ptr - (char *)info;
 505         break;
 506     default:
 507         FIXME( "Information class %d not implemented\n", info_class );
 508         return STATUS_INVALID_PARAMETER;
 509     }
 510
 511     SERVER_START_REQ( get_key_value )
 512     {
 513         req->hkey = wine_server_obj_handle( handle );
 514         wine_server_add_data( req, name->Buffer, name->Length );
 515         if (length > fixed_size && data_ptr) wine_server_set_reply( req, data_ptr, length - fixed_size );
 516         if (!(ret = wine_server_call( req )))
 517         {
 518             copy_key_value_info( info_class, info, length, reply->type,
 519                                  name->Length, reply->total );
 520             *result_len = fixed_size + (info_class == KeyValueBasicInformation ? 0 : reply->total);
 521             if (length < *result_len) ret = STATUS_BUFFER_OVERFLOW;
 522         }
 523     }
 524     SERVER_END_REQ;
 525     return ret;
 526 }
 527
 528 /******************************************************************************
 529  * RtlpNtQueryValueKey [NTDLL.@]
 530  *
 531  */
 532 NTSTATUS WINAPI RtlpNtQueryValueKey( HANDLE handle, ULONG *result_type, PBYTE dest,
 533                                      DWORD *result_len )
 534 {
 535     KEY_VALUE_PARTIAL_INFORMATION *info;
 536     UNICODE_STRING name;
 537     NTSTATUS ret;
 538     DWORD dwResultLen;
 539     DWORD dwLen = sizeof (KEY_VALUE_PARTIAL_INFORMATION) + (result_len ? *result_len : 0);
 540
 541     info = RtlAllocateHeap( GetProcessHeap(), 0, dwLen );
 542     if (!info)
 543       return STATUS_NO_MEMORY;
 544
 545     name.Length = 0;
 546     ret = NtQueryValueKey( handle, &name, KeyValuePartialInformation, info, dwLen, &dwResultLen );
 547
 548     if (!ret || ret == STATUS_BUFFER_OVERFLOW)
 549     {
 550         if (result_len)
 551             *result_len = info->DataLength;
 552
 553         if (result_type)
 554             *result_type = info->Type;
 555
 556         if (ret != STATUS_BUFFER_OVERFLOW)
 557             memcpy( dest, info->Data, info->DataLength );
 558     }
 559
 560     RtlFreeHeap( GetProcessHeap(), 0, info );
 561     return ret;
 562 }
 563
 564 /******************************************************************************
 565  *  NtFlushKey  [NTDLL.@]
 566  *  ZwFlushKey  [NTDLL.@]
 567  */
 568 NTSTATUS WINAPI NtFlushKey(HANDLE key)
 569 {
 570     NTSTATUS ret;
 571
 572     TRACE("key=%p\n", key);
 573
 574     SERVER_START_REQ( flush_key )
 575     {
 576         req->hkey = wine_server_obj_handle( key );
 577         ret = wine_server_call( req );
 578     }
 579     SERVER_END_REQ;
 580
 581     return ret;
 582 }
 583
 584 /******************************************************************************
 585  *  NtLoadKey   [NTDLL.@]
 586  *  ZwLoadKey   [NTDLL.@]
 587  */
 588 NTSTATUS WINAPI NtLoadKey( const OBJECT_ATTRIBUTES *attr, OBJECT_ATTRIBUTES *file )
 589 {
 590     NTSTATUS ret;
 591     HANDLE hive;
 592     IO_STATUS_BLOCK io;
 593
 594     TRACE("(%p,%p)\n", attr, file);
 595
 596     ret = NtCreateFile(&hive, GENERIC_READ, file, &io, NULL, FILE_ATTRIBUTE_NORMAL, 0,
 597                        FILE_OPEN, 0, NULL, 0);
 598     if (ret) return ret;
 599
 600     SERVER_START_REQ( load_registry )
 601     {
 602         req->hkey = wine_server_obj_handle( attr->RootDirectory );
 603         req->file = wine_server_obj_handle( hive );
 604         wine_server_add_data(req, attr->ObjectName->Buffer, attr->ObjectName->Length);
 605         ret = wine_server_call( req );
 606     }
 607     SERVER_END_REQ;
 608
 609     NtClose(hive);
 610
 611     return ret;
 612 }
 613
 614 /******************************************************************************
 615  *  NtNotifyChangeKey   [NTDLL.@]
 616  *  ZwNotifyChangeKey   [NTDLL.@]
 617  */
 618 NTSTATUS WINAPI NtNotifyChangeKey(
 619         IN HANDLE KeyHandle,
 620         IN HANDLE Event,
 621         IN PIO_APC_ROUTINE ApcRoutine OPTIONAL,
 622         IN PVOID ApcContext OPTIONAL,
 623         OUT PIO_STATUS_BLOCK IoStatusBlock,
 624         IN ULONG CompletionFilter,
 625         IN BOOLEAN Asynchronous,
 626         OUT PVOID ChangeBuffer,
 627         IN ULONG Length,
 628         IN BOOLEAN WatchSubtree)
 629 {
 630     NTSTATUS ret;
 631
 632     TRACE("(%p,%p,%p,%p,%p,0x%08x, 0x%08x,%p,0x%08x,0x%08x)\n",
 633         KeyHandle, Event, ApcRoutine, ApcContext, IoStatusBlock, CompletionFilter,
 634         Asynchronous, ChangeBuffer, Length, WatchSubtree);
 635
 636     if (ApcRoutine || ApcContext || ChangeBuffer || Length)
 637         FIXME("Unimplemented optional parameter\n");
 638
 639     if (!Asynchronous)
 640     {
 641         OBJECT_ATTRIBUTES attr;
 642         InitializeObjectAttributes( &attr, NULL, 0, NULL, NULL );
 643         ret = NtCreateEvent( &Event, EVENT_ALL_ACCESS, &attr, FALSE, FALSE );
 644         if (ret != STATUS_SUCCESS)
 645             return ret;
 646     }
 647
 648     SERVER_START_REQ( set_registry_notification )
 649     {
 650         req->hkey    = wine_server_obj_handle( KeyHandle );
 651         req->event   = wine_server_obj_handle( Event );
 652         req->subtree = WatchSubtree;
 653         req->filter  = CompletionFilter;
 654         ret = wine_server_call( req );
 655     }
 656     SERVER_END_REQ;
 657
 658     if (!Asynchronous)
 659     {
 660         if (ret == STATUS_SUCCESS)
 661             NtWaitForSingleObject( Event, FALSE, NULL );
 662         NtClose( Event );
 663     }
 664
 665     return STATUS_SUCCESS;
 666 }
 667
 668 /******************************************************************************
 669  * NtQueryMultipleValueKey [NTDLL]
 670  * ZwQueryMultipleValueKey
 671  */
 672
 673 NTSTATUS WINAPI NtQueryMultipleValueKey(
 674         HANDLE KeyHandle,
 675         PKEY_MULTIPLE_VALUE_INFORMATION ListOfValuesToQuery,
 676         ULONG NumberOfItems,
 677         PVOID MultipleValueInformation,
 678         ULONG Length,
 679         PULONG  ReturnLength)
 680 {
 681         FIXME("(%p,%p,0x%08x,%p,0x%08x,%p) stub!\n",
 682         KeyHandle, ListOfValuesToQuery, NumberOfItems, MultipleValueInformation,
 683         Length,ReturnLength);
 684         return STATUS_SUCCESS;
 685 }
 686
 687 /******************************************************************************
 688  * NtReplaceKey [NTDLL.@]
 689  * ZwReplaceKey [NTDLL.@]
 690  */
 691 NTSTATUS WINAPI NtReplaceKey(
 692         IN POBJECT_ATTRIBUTES ObjectAttributes,
 693         IN HANDLE Key,
 694         IN POBJECT_ATTRIBUTES ReplacedObjectAttributes)
 695 {
 696     FIXME("(%s,%p,%s),stub!\n", debugstr_ObjectAttributes(ObjectAttributes), Key,
 697           debugstr_ObjectAttributes(ReplacedObjectAttributes) );
 698     return STATUS_SUCCESS;
 699 }
 700 /******************************************************************************
 701  * NtRestoreKey [NTDLL.@]
 702  * ZwRestoreKey [NTDLL.@]
 703  */
 704 NTSTATUS WINAPI NtRestoreKey(
 705         HANDLE KeyHandle,
 706         HANDLE FileHandle,
 707         ULONG RestoreFlags)
 708 {
 709         FIXME("(%p,%p,0x%08x) stub\n",
 710         KeyHandle, FileHandle, RestoreFlags);
 711         return STATUS_SUCCESS;
 712 }
 713 /******************************************************************************
 714  * NtSaveKey [NTDLL.@]
 715  * ZwSaveKey [NTDLL.@]
 716  */
 717 NTSTATUS WINAPI NtSaveKey(IN HANDLE KeyHandle, IN HANDLE FileHandle)
 718 {
 719     NTSTATUS ret;
 720
 721     TRACE("(%p,%p)\n", KeyHandle, FileHandle);
 722
 723     SERVER_START_REQ( save_registry )
 724     {
 725         req->hkey = wine_server_obj_handle( KeyHandle );
 726         req->file = wine_server_obj_handle( FileHandle );
 727         ret = wine_server_call( req );
 728     }
 729     SERVER_END_REQ;
 730
 731     return ret;
 732 }
 733 /******************************************************************************
 734  * NtSetInformationKey [NTDLL.@]
 735  * ZwSetInformationKey [NTDLL.@]
 736  */
 737 NTSTATUS WINAPI NtSetInformationKey(
 738         IN HANDLE KeyHandle,
 739         IN const int KeyInformationClass,
 740         IN PVOID KeyInformation,
 741         IN ULONG KeyInformationLength)
 742 {
 743         FIXME("(%p,0x%08x,%p,0x%08x) stub\n",
 744         KeyHandle, KeyInformationClass, KeyInformation, KeyInformationLength);
 745         return STATUS_SUCCESS;
 746 }
 747
 748
 749 /******************************************************************************
 750  * NtSetValueKey [NTDLL.@]
 751  * ZwSetValueKey [NTDLL.@]
 752  *
 753  * NOTES
 754  *   win95 does not care about count for REG_SZ and finds out the len by itself (js)
 755  *   NT does definitely care (aj)
 756  */
 757 NTSTATUS WINAPI NtSetValueKey( HANDLE hkey, const UNICODE_STRING *name, ULONG TitleIndex,
 758                                ULONG type, const void *data, ULONG count )
 759 {
 760     NTSTATUS ret;
 761
 762     TRACE( "(%p,%s,%d,%p,%d)\n", hkey, debugstr_us(name), type, data, count );
 763
 764     if (name->Length > MAX_NAME_LENGTH) return STATUS_BUFFER_OVERFLOW;
 765
 766     SERVER_START_REQ( set_key_value )
 767     {
 768         req->hkey    = wine_server_obj_handle( hkey );
 769         req->type    = type;
 770         req->namelen = name->Length;
 771         wine_server_add_data( req, name->Buffer, name->Length );
 772         wine_server_add_data( req, data, count );
 773         ret = wine_server_call( req );
 774     }
 775     SERVER_END_REQ;
 776     return ret;
 777 }
 778
 779 /******************************************************************************
 780  * RtlpNtSetValueKey [NTDLL.@]
 781  *
 782  */
 783 NTSTATUS WINAPI RtlpNtSetValueKey( HANDLE hkey, ULONG type, const void *data,
 784                                    ULONG count )
 785 {
 786     UNICODE_STRING name;
 787
 788     name.Length = 0;
 789     return NtSetValueKey( hkey, &name, 0, type, data, count );
 790 }
 791
 792 /******************************************************************************
 793  * NtUnloadKey [NTDLL.@]
 794  * ZwUnloadKey [NTDLL.@]
 795  */
 796 NTSTATUS WINAPI NtUnloadKey(IN POBJECT_ATTRIBUTES attr)
 797 {
 798     NTSTATUS ret;
 799
 800     TRACE("(%p)\n", attr);
 801
 802     SERVER_START_REQ( unload_registry )
 803     {
 804         req->hkey = wine_server_obj_handle( attr->RootDirectory );
 805         ret = wine_server_call(req);
 806     }
 807     SERVER_END_REQ;
 808
 809     return ret;
 810 }
 811
 812 /******************************************************************************
 813  *  RtlFormatCurrentUserKeyPath         [NTDLL.@]
 814  *
 815  */
 816 NTSTATUS WINAPI RtlFormatCurrentUserKeyPath( IN OUT PUNICODE_STRING KeyPath)
 817 {
 818     static const WCHAR pathW[] = {'\\','R','e','g','i','s','t','r','y','\\','U','s','e','r','\\'};
 819     HANDLE token;
 820     NTSTATUS status;
 821
 822     status = NtOpenThreadToken(GetCurrentThread(), TOKEN_READ, TRUE, &token);
 823     if (status == STATUS_NO_TOKEN)
 824         status = NtOpenProcessToken(GetCurrentProcess(), TOKEN_READ, &token);
 825     if (status == STATUS_SUCCESS)
 826     {
 827         char buffer[sizeof(TOKEN_USER) + sizeof(SID) + sizeof(DWORD)*SID_MAX_SUB_AUTHORITIES];
 828         DWORD len = sizeof(buffer);
 829
 830         status = NtQueryInformationToken(token, TokenUser, buffer, len, &len);
 831         if (status == STATUS_SUCCESS)
 832         {
 833             KeyPath->MaximumLength = 0;
 834             status = RtlConvertSidToUnicodeString(KeyPath, ((TOKEN_USER *)buffer)->User.Sid, FALSE);
 835             if (status == STATUS_BUFFER_OVERFLOW)
 836             {
 837                 PWCHAR buf = RtlAllocateHeap(GetProcessHeap(), 0,
 838                                              sizeof(pathW) + KeyPath->Length + sizeof(WCHAR));
 839                 if (buf)
 840                 {
 841                     memcpy(buf, pathW, sizeof(pathW));
 842                     KeyPath->MaximumLength = KeyPath->Length + sizeof(WCHAR);
 843                     KeyPath->Buffer = (PWCHAR)((LPBYTE)buf + sizeof(pathW));
 844                     status = RtlConvertSidToUnicodeString(KeyPath,
 845                                                           ((TOKEN_USER *)buffer)->User.Sid, FALSE);
 846                     KeyPath->Buffer = buf;
 847                     KeyPath->Length += sizeof(pathW);
 848                     KeyPath->MaximumLength += sizeof(pathW);
 849                 }
 850                 else
 851                     status = STATUS_NO_MEMORY;
 852             }
 853         }
 854         NtClose(token);
 855     }
 856     return status;
 857 }
 858
 859 /******************************************************************************
 860  *  RtlOpenCurrentUser          [NTDLL.@]
 861  *
 862  * NOTES
 863  *  If we return just HKEY_CURRENT_USER the advapi tries to find a remote
 864  *  registry (odd handle) and fails.
 865  */
 866 NTSTATUS WINAPI RtlOpenCurrentUser(
 867         IN ACCESS_MASK DesiredAccess, /* [in] */
 868         OUT PHANDLE KeyHandle)        /* [out] handle of HKEY_CURRENT_USER */
 869 {
 870         OBJECT_ATTRIBUTES ObjectAttributes;
 871         UNICODE_STRING ObjectName;
 872         NTSTATUS ret;
 873
 874         TRACE("(0x%08x, %p)\n",DesiredAccess, KeyHandle);
 875
 876         if ((ret = RtlFormatCurrentUserKeyPath(&ObjectName))) return ret;
 877         InitializeObjectAttributes(&ObjectAttributes,&ObjectName,OBJ_CASE_INSENSITIVE,0, NULL);
 878         ret = NtCreateKey(KeyHandle, DesiredAccess, &ObjectAttributes, 0, NULL, 0, NULL);
 879         RtlFreeUnicodeString(&ObjectName);
 880         return ret;
 881 }
 882
 883
 884 static NTSTATUS RTL_ReportRegistryValue(PKEY_VALUE_FULL_INFORMATION pInfo,
 885                                         PRTL_QUERY_REGISTRY_TABLE pQuery, PVOID pContext, PVOID pEnvironment)
 886 {
 887     PUNICODE_STRING str;
 888     UNICODE_STRING src, dst;
 889     LONG *bin;
 890     ULONG offset;
 891     PWSTR wstr;
 892     DWORD res;
 893     NTSTATUS status = STATUS_SUCCESS;
 894     ULONG len;
 895     LPWSTR String;
 896     ULONG count = 0;
 897
 898     if (pInfo == NULL)
 899     {
 900         if (pQuery->Flags & RTL_QUERY_REGISTRY_DIRECT)
 901             return STATUS_INVALID_PARAMETER;
 902         else
 903         {
 904             status = pQuery->QueryRoutine(pQuery->Name, pQuery->DefaultType, pQuery->DefaultData,
 905                                           pQuery->DefaultLength, pContext, pQuery->EntryContext);
 906         }
 907         return status;
 908     }
 909     len = pInfo->DataLength;
 910
 911     if (pQuery->Flags & RTL_QUERY_REGISTRY_DIRECT)
 912     {
 913         str = pQuery->EntryContext;
 914
 915         switch(pInfo->Type)
 916         {
 917         case REG_EXPAND_SZ:
 918             if (!(pQuery->Flags & RTL_QUERY_REGISTRY_NOEXPAND))
 919             {
 920                 RtlInitUnicodeString(&src, (WCHAR*)(((CHAR*)pInfo) + pInfo->DataOffset));
 921                 res = 0;
 922                 dst.MaximumLength = 0;
 923                 RtlExpandEnvironmentStrings_U(pEnvironment, &src, &dst, &res);
 924                 dst.Length = 0;
 925                 dst.MaximumLength = res;
 926                 dst.Buffer = RtlAllocateHeap(GetProcessHeap(), 0, res * sizeof(WCHAR));
 927                 RtlExpandEnvironmentStrings_U(pEnvironment, &src, &dst, &res);
 928                 status = pQuery->QueryRoutine(pQuery->Name, pInfo->Type, dst.Buffer,
 929                                      dst.Length, pContext, pQuery->EntryContext);
 930                 RtlFreeHeap(GetProcessHeap(), 0, dst.Buffer);
 931             }
 932
 933         case REG_SZ:
 934         case REG_LINK:
 935             if (str->Buffer == NULL)
 936                 RtlCreateUnicodeString(str, (WCHAR*)(((CHAR*)pInfo) + pInfo->DataOffset));
 937             else
 938                 RtlAppendUnicodeToString(str, (WCHAR*)(((CHAR*)pInfo) + pInfo->DataOffset));
 939             break;
 940
 941         case REG_MULTI_SZ:
 942             if (!(pQuery->Flags & RTL_QUERY_REGISTRY_NOEXPAND))
 943                 return STATUS_INVALID_PARAMETER;
 944
 945             if (str->Buffer == NULL)
 946             {
 947                 str->Buffer = RtlAllocateHeap(GetProcessHeap(), 0, len);
 948                 str->MaximumLength = len;
 949             }
 950             len = min(len, str->MaximumLength);
 951             memcpy(str->Buffer, ((CHAR*)pInfo) + pInfo->DataOffset, len);
 952             str->Length = len;
 953             break;
 954
 955         default:
 956             bin = pQuery->EntryContext;
 957             if (pInfo->DataLength <= sizeof(ULONG))
 958                 memcpy(bin, ((CHAR*)pInfo) + pInfo->DataOffset,
 959                     pInfo->DataLength);
 960             else
 961             {
 962                 if (bin[0] <= sizeof(ULONG))
 963                 {
 964                     memcpy(&bin[1], ((CHAR*)pInfo) + pInfo->DataOffset,
 965                     min(-bin[0], pInfo->DataLength));
 966                 }
 967                 else
 968                 {
 969                    len = min(bin[0], pInfo->DataLength);
 970                     bin[1] = len;
 971                     bin[2] = pInfo->Type;
 972                     memcpy(&bin[3], ((CHAR*)pInfo) + pInfo->DataOffset, len);
 973                 }
 974            }
 975            break;
 976         }
 977     }
 978     else
 979     {
 980         if((pQuery->Flags & RTL_QUERY_REGISTRY_NOEXPAND) ||
 981            (pInfo->Type != REG_EXPAND_SZ && pInfo->Type != REG_MULTI_SZ))
 982         {
 983             status = pQuery->QueryRoutine(pInfo->Name, pInfo->Type,
 984                 ((CHAR*)pInfo) + pInfo->DataOffset, pInfo->DataLength,
 985                 pContext, pQuery->EntryContext);
 986         }
 987         else if (pInfo->Type == REG_EXPAND_SZ)
 988         {
 989             RtlInitUnicodeString(&src, (WCHAR*)(((CHAR*)pInfo) + pInfo->DataOffset));
 990             res = 0;
 991             dst.MaximumLength = 0;
 992             RtlExpandEnvironmentStrings_U(pEnvironment, &src, &dst, &res);
 993             dst.Length = 0;
 994             dst.MaximumLength = res;
 995             dst.Buffer = RtlAllocateHeap(GetProcessHeap(), 0, res * sizeof(WCHAR));
 996             RtlExpandEnvironmentStrings_U(pEnvironment, &src, &dst, &res);
 997             status = pQuery->QueryRoutine(pQuery->Name, pInfo->Type, dst.Buffer,
 998                                           dst.Length, pContext, pQuery->EntryContext);
 999             RtlFreeHeap(GetProcessHeap(), 0, dst.Buffer);
1000         }
1001         else /* REG_MULTI_SZ */
1002         {
1003             if(pQuery->Flags & RTL_QUERY_REGISTRY_NOEXPAND)
1004             {
1005                 for (offset = 0; offset <= pInfo->DataLength; offset += len + sizeof(WCHAR))
1006                     {
1007                     wstr = (WCHAR*)(((CHAR*)pInfo) + offset);
1008                     len = strlenW(wstr) * sizeof(WCHAR);
1009                     status = pQuery->QueryRoutine(pQuery->Name, pInfo->Type, wstr, len,
1010                         pContext, pQuery->EntryContext);
1011                     if(status != STATUS_SUCCESS && status != STATUS_BUFFER_TOO_SMALL)
1012                         return status;
1013                     }
1014             }
1015             else
1016             {
1017                 while(count<=pInfo->DataLength)
1018                 {
1019                     String = (WCHAR*)(((CHAR*)pInfo) + pInfo->DataOffset)+count;
1020                     count+=strlenW(String)+1;
1021                     RtlInitUnicodeString(&src, (WCHAR*)(((CHAR*)pInfo) + pInfo->DataOffset));
1022                     res = 0;
1023                     dst.MaximumLength = 0;
1024                     RtlExpandEnvironmentStrings_U(pEnvironment, &src, &dst, &res);
1025                     dst.Length = 0;
1026                     dst.MaximumLength = res;
1027                     dst.Buffer = RtlAllocateHeap(GetProcessHeap(), 0, res * sizeof(WCHAR));
1028                     RtlExpandEnvironmentStrings_U(pEnvironment, &src, &dst, &res);
1029                     status = pQuery->QueryRoutine(pQuery->Name, pInfo->Type, dst.Buffer,
1030                                                   dst.Length, pContext, pQuery->EntryContext);
1031                     RtlFreeHeap(GetProcessHeap(), 0, dst.Buffer);
1032                     if(status != STATUS_SUCCESS && status != STATUS_BUFFER_TOO_SMALL)
1033                         return status;
1034                 }
1035             }
1036         }
1037     }
1038     return status;
1039 }
1040
1041
1042 static NTSTATUS RTL_GetKeyHandle(ULONG RelativeTo, PCWSTR Path, PHANDLE handle)
1043 {
1044     UNICODE_STRING KeyString;
1045     OBJECT_ATTRIBUTES regkey;
1046     PCWSTR base;
1047     INT len;
1048     NTSTATUS status;
1049
1050     static const WCHAR empty[] = {0};
1051     static const WCHAR control[] = {'\\','R','e','g','i','s','t','r','y','\\','M','a','c','h','i','n','e',
1052     '\\','S','y','s','t','e','m','\\','C','u','r','r','e','n','t','C','o','n','t','r','o','l','S','e','t','\\',
1053     'C','o','n','t','r','o','l','\\',0};
1054
1055     static const WCHAR devicemap[] = {'\\','R','e','g','i','s','t','r','y','\\','M','a','c','h','i','n','e','\\',
1056     'H','a','r','d','w','a','r','e','\\','D','e','v','i','c','e','M','a','p','\\',0};
1057
1058     static const WCHAR services[] = {'\\','R','e','g','i','s','t','r','y','\\','M','a','c','h','i','n','e','\\',
1059     'S','y','s','t','e','m','\\','C','u','r','r','e','n','t','C','o','n','t','r','o','l','S','e','t','\\',
1060     'S','e','r','v','i','c','e','s','\\',0};
1061
1062     static const WCHAR user[] = {'\\','R','e','g','i','s','t','r','y','\\','U','s','e','r','\\',
1063     'C','u','r','r','e','n','t','U','s','e','r','\\',0};
1064
1065     static const WCHAR windows_nt[] = {'\\','R','e','g','i','s','t','r','y','\\','M','a','c','h','i','n','e','\\',
1066     'S','o','f','t','w','a','r','e','\\','M','i','c','r','o','s','o','f','t','\\',
1067     'W','i','n','d','o','w','s',' ','N','T','\\','C','u','r','r','e','n','t','V','e','r','s','i','o','n','\\',0};
1068
1069     switch (RelativeTo & 0xff)
1070     {
1071     case RTL_REGISTRY_ABSOLUTE:
1072         base = empty;
1073         break;
1074
1075     case RTL_REGISTRY_CONTROL:
1076         base = control;
1077         break;
1078
1079     case RTL_REGISTRY_DEVICEMAP:
1080         base = devicemap;
1081         break;
1082
1083     case RTL_REGISTRY_SERVICES:
1084         base = services;
1085         break;
1086
1087     case RTL_REGISTRY_USER:
1088         base = user;
1089         break;
1090
1091     case RTL_REGISTRY_WINDOWS_NT:
1092         base = windows_nt;
1093         break;
1094
1095     default:
1096         return STATUS_INVALID_PARAMETER;
1097     }
1098
1099     len = (strlenW(base) + strlenW(Path) + 1) * sizeof(WCHAR);
1100     KeyString.Buffer = RtlAllocateHeap(GetProcessHeap(), 0, len);
1101     if (KeyString.Buffer == NULL)
1102         return STATUS_NO_MEMORY;
1103
1104     strcpyW(KeyString.Buffer, base);
1105     strcatW(KeyString.Buffer, Path);
1106     KeyString.Length = len - sizeof(WCHAR);
1107     KeyString.MaximumLength = len;
1108     InitializeObjectAttributes(&regkey, &KeyString, OBJ_CASE_INSENSITIVE, NULL, NULL);
1109     status = NtOpenKey(handle, KEY_ALL_ACCESS, &regkey);
1110     RtlFreeHeap(GetProcessHeap(), 0, KeyString.Buffer);
1111     return status;
1112 }
1113
1114 /*************************************************************************
1115  * RtlQueryRegistryValues   [NTDLL.@]
1116  *
1117  * Query multiple registry values with a signle call.
1118  *
1119  * PARAMS
1120  *  RelativeTo  [I] Registry path that Path refers to
1121  *  Path        [I] Path to key
1122  *  QueryTable  [I] Table of key values to query
1123  *  Context     [I] Parameter to pass to the application defined QueryRoutine function
1124  *  Environment [I] Optional parameter to use when performing expansion
1125  *
1126  * RETURNS
1127  *  STATUS_SUCCESS or an appropriate NTSTATUS error code.
1128  */
1129 NTSTATUS WINAPI RtlQueryRegistryValues(IN ULONG RelativeTo, IN PCWSTR Path,
1130                                        IN PRTL_QUERY_REGISTRY_TABLE QueryTable, IN PVOID Context,
1131                                        IN PVOID Environment OPTIONAL)
1132 {
1133     UNICODE_STRING Value;
1134     HANDLE handle, topkey;
1135     PKEY_VALUE_FULL_INFORMATION pInfo = NULL;
1136     ULONG len, buflen = 0;
1137     NTSTATUS status=STATUS_SUCCESS, ret = STATUS_SUCCESS;
1138     INT i;
1139
1140     TRACE("(%d, %s, %p, %p, %p)\n", RelativeTo, debugstr_w(Path), QueryTable, Context, Environment);
1141
1142     if(Path == NULL)
1143         return STATUS_INVALID_PARAMETER;
1144
1145     /* get a valid handle */
1146     if (RelativeTo & RTL_REGISTRY_HANDLE)
1147         topkey = handle = (HANDLE)Path;
1148     else
1149     {
1150         status = RTL_GetKeyHandle(RelativeTo, Path, &topkey);
1151         handle = topkey;
1152     }
1153     if(status != STATUS_SUCCESS)
1154         return status;
1155
1156     /* Process query table entries */
1157     for (; QueryTable->QueryRoutine != NULL || QueryTable->Name != NULL; ++QueryTable)
1158     {
1159         if (QueryTable->Flags &
1160             (RTL_QUERY_REGISTRY_SUBKEY | RTL_QUERY_REGISTRY_TOPKEY))
1161         {
1162             /* topkey must be kept open just in case we will reuse it later */
1163             if (handle != topkey)
1164                 NtClose(handle);
1165
1166             if (QueryTable->Flags & RTL_QUERY_REGISTRY_SUBKEY)
1167             {
1168                 handle = 0;
1169                 status = RTL_GetKeyHandle(PtrToUlong(QueryTable->Name), Path, &handle);
1170                 if(status != STATUS_SUCCESS)
1171                 {
1172                     ret = status;
1173                     goto out;
1174                 }
1175             }
1176             else
1177                 handle = topkey;
1178         }
1179
1180         if (QueryTable->Flags & RTL_QUERY_REGISTRY_NOVALUE)
1181         {
1182             QueryTable->QueryRoutine(QueryTable->Name, REG_NONE, NULL, 0,
1183                 Context, QueryTable->EntryContext);
1184             continue;
1185         }
1186
1187         if (!handle)
1188         {
1189             if (QueryTable->Flags & RTL_QUERY_REGISTRY_REQUIRED)
1190             {
1191                 ret = STATUS_OBJECT_NAME_NOT_FOUND;
1192                 goto out;
1193             }
1194             continue;
1195         }
1196
1197         if (QueryTable->Name == NULL)
1198         {
1199             if (QueryTable->Flags & RTL_QUERY_REGISTRY_DIRECT)
1200             {
1201                 ret = STATUS_INVALID_PARAMETER;
1202                 goto out;
1203             }
1204
1205             /* Report all subkeys */
1206             for (i = 0;; ++i)
1207             {
1208                 status = NtEnumerateValueKey(handle, i,
1209                     KeyValueFullInformation, pInfo, buflen, &len);
1210                 if (status == STATUS_NO_MORE_ENTRIES)
1211                     break;
1212                 if (status == STATUS_BUFFER_OVERFLOW ||
1213                     status == STATUS_BUFFER_TOO_SMALL)
1214                 {
1215                     buflen = len;
1216                     RtlFreeHeap(GetProcessHeap(), 0, pInfo);
1217                     pInfo = RtlAllocateHeap(GetProcessHeap(), 0, buflen);
1218                     NtEnumerateValueKey(handle, i, KeyValueFullInformation,
1219                         pInfo, buflen, &len);
1220                 }
1221
1222                 status = RTL_ReportRegistryValue(pInfo, QueryTable, Context, Environment);
1223                 if(status != STATUS_SUCCESS && status != STATUS_BUFFER_TOO_SMALL)
1224                 {
1225                     ret = status;
1226                     goto out;
1227                 }
1228                 if (QueryTable->Flags & RTL_QUERY_REGISTRY_DELETE)
1229                 {
1230                     RtlInitUnicodeString(&Value, pInfo->Name);
1231                     NtDeleteValueKey(handle, &Value);
1232                 }
1233             }
1234
1235             if (i == 0  && (QueryTable->Flags & RTL_QUERY_REGISTRY_REQUIRED))
1236             {
1237                 ret = STATUS_OBJECT_NAME_NOT_FOUND;
1238                 goto out;
1239             }
1240         }
1241         else
1242         {
1243             RtlInitUnicodeString(&Value, QueryTable->Name);
1244             status = NtQueryValueKey(handle, &Value, KeyValueFullInformation,
1245                 pInfo, buflen, &len);
1246             if (status == STATUS_BUFFER_OVERFLOW ||
1247                 status == STATUS_BUFFER_TOO_SMALL)
1248             {
1249                 buflen = len;
1250                 RtlFreeHeap(GetProcessHeap(), 0, pInfo);
1251                 pInfo = RtlAllocateHeap(GetProcessHeap(), 0, buflen);
1252                 status = NtQueryValueKey(handle, &Value,
1253                     KeyValueFullInformation, pInfo, buflen, &len);
1254             }
1255             if (status != STATUS_SUCCESS)
1256             {
1257                 if (QueryTable->Flags & RTL_QUERY_REGISTRY_REQUIRED)
1258                 {
1259                     ret = STATUS_OBJECT_NAME_NOT_FOUND;
1260                     goto out;
1261                 }
1262                 status = RTL_ReportRegistryValue(NULL, QueryTable, Context, Environment);
1263                 if(status != STATUS_SUCCESS && status != STATUS_BUFFER_TOO_SMALL)
1264                 {
1265                     ret = status;
1266                     goto out;
1267                 }
1268             }
1269             else
1270             {
1271                 status = RTL_ReportRegistryValue(pInfo, QueryTable, Context, Environment);
1272                 if(status != STATUS_SUCCESS && status != STATUS_BUFFER_TOO_SMALL)
1273                 {
1274                     ret = status;
1275                     goto out;
1276                 }
1277                 if (QueryTable->Flags & RTL_QUERY_REGISTRY_DELETE)
1278                     NtDeleteValueKey(handle, &Value);
1279             }
1280         }
1281     }
1282
1283 out:
1284     RtlFreeHeap(GetProcessHeap(), 0, pInfo);
1285     if (handle != topkey)
1286         NtClose(handle);
1287     NtClose(topkey);
1288     return ret;
1289 }
1290
1291 /*************************************************************************
1292  * RtlCheckRegistryKey   [NTDLL.@]
1293  *
1294  * Query multiple registry values with a signle call.
1295  *
1296  * PARAMS
1297  *  RelativeTo [I] Registry path that Path refers to
1298  *  Path       [I] Path to key
1299  *
1300  * RETURNS
1301  *  STATUS_SUCCESS if the specified key exists, or an NTSTATUS error code.
1302  */
1303 NTSTATUS WINAPI RtlCheckRegistryKey(IN ULONG RelativeTo, IN PWSTR Path)
1304 {
1305     HANDLE handle;
1306     NTSTATUS status;
1307
1308     TRACE("(%d, %s)\n", RelativeTo, debugstr_w(Path));
1309
1310     if((!RelativeTo) && Path == NULL)
1311         return STATUS_OBJECT_PATH_SYNTAX_BAD;
1312     if(RelativeTo & RTL_REGISTRY_HANDLE)
1313         return STATUS_SUCCESS;
1314
1315     status = RTL_GetKeyHandle(RelativeTo, Path, &handle);
1316     if (handle) NtClose(handle);
1317     if (status == STATUS_INVALID_HANDLE) status = STATUS_OBJECT_NAME_NOT_FOUND;
1318     return status;
1319 }
1320
1321 /*************************************************************************
1322  * RtlDeleteRegistryValue   [NTDLL.@]
1323  *
1324  * Query multiple registry values with a signle call.
1325  *
1326  * PARAMS
1327  *  RelativeTo [I] Registry path that Path refers to
1328  *  Path       [I] Path to key
1329  *  ValueName  [I] Name of the value to delete
1330  *
1331  * RETURNS
1332  *  STATUS_SUCCESS if the specified key is successfully deleted, or an NTSTATUS error code.
1333  */
1334 NTSTATUS WINAPI RtlDeleteRegistryValue(IN ULONG RelativeTo, IN PCWSTR Path, IN PCWSTR ValueName)
1335 {
1336     NTSTATUS status;
1337     HANDLE handle;
1338     UNICODE_STRING Value;
1339
1340     TRACE("(%d, %s, %s)\n", RelativeTo, debugstr_w(Path), debugstr_w(ValueName));
1341
1342     RtlInitUnicodeString(&Value, ValueName);
1343     if(RelativeTo == RTL_REGISTRY_HANDLE)
1344     {
1345         return NtDeleteValueKey((HANDLE)Path, &Value);
1346     }
1347     status = RTL_GetKeyHandle(RelativeTo, Path, &handle);
1348     if (status) return status;
1349     status = NtDeleteValueKey(handle, &Value);
1350     NtClose(handle);
1351     return status;
1352 }
1353
1354 /*************************************************************************
1355  * RtlWriteRegistryValue   [NTDLL.@]
1356  *
1357  * Sets the registry value with provided data.
1358  *
1359  * PARAMS
1360  *  RelativeTo [I] Registry path that path parameter refers to
1361  *  path       [I] Path to the key (or handle - see RTL_GetKeyHandle)
1362  *  name       [I] Name of the registry value to set
1363  *  type       [I] Type of the registry key to set
1364  *  data       [I] Pointer to the user data to be set
1365  *  length     [I] Length of the user data pointed by data
1366  *
1367  * RETURNS
1368  *  STATUS_SUCCESS if the specified key is successfully set,
1369  *  or an NTSTATUS error code.
1370  */
1371 NTSTATUS WINAPI RtlWriteRegistryValue( ULONG RelativeTo, PCWSTR path, PCWSTR name,
1372                                        ULONG type, PVOID data, ULONG length )
1373 {
1374     HANDLE hkey;
1375     NTSTATUS status;
1376     UNICODE_STRING str;
1377
1378     TRACE( "(%d, %s, %s) -> %d: %p [%d]\n", RelativeTo, debugstr_w(path), debugstr_w(name),
1379            type, data, length );
1380
1381     RtlInitUnicodeString( &str, name );
1382
1383     if (RelativeTo == RTL_REGISTRY_HANDLE)
1384         return NtSetValueKey( (HANDLE)path, &str, 0, type, data, length );
1385
1386     status = RTL_GetKeyHandle( RelativeTo, path, &hkey );
1387     if (status != STATUS_SUCCESS) return status;
1388
1389     status = NtSetValueKey( hkey, &str, 0, type, data, length );
1390     NtClose( hkey );
1391
1392     return status;
1393 }