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     case KeyNameInformation:  data_ptr = ((KEY_NAME_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       = wine_server_obj_handle( 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             switch(info_class)
 236             {
 237             case KeyBasicInformation:
 238                 {
 239                     KEY_BASIC_INFORMATION keyinfo;
 240                     fixed_size = (char *)keyinfo.Name - (char *)&keyinfo;
 241                     keyinfo.LastWriteTime.QuadPart = reply->modif;
 242                     keyinfo.TitleIndex = 0;
 243                     keyinfo.NameLength = reply->namelen;
 244                     memcpy( info, &keyinfo, min( length, fixed_size ) );
 245                 }
 246                 break;
 247             case KeyFullInformation:
 248                 {
 249                     KEY_FULL_INFORMATION keyinfo;
 250                     fixed_size = (char *)keyinfo.Class - (char *)&keyinfo;
 251                     keyinfo.LastWriteTime.QuadPart = reply->modif;
 252                     keyinfo.TitleIndex = 0;
 253                     keyinfo.ClassLength = wine_server_reply_size(reply);
 254                     keyinfo.ClassOffset = keyinfo.ClassLength ? fixed_size : -1;
 255                     keyinfo.SubKeys = reply->subkeys;
 256                     keyinfo.MaxNameLen = reply->max_subkey;
 257                     keyinfo.MaxClassLen = reply->max_class;
 258                     keyinfo.Values = reply->values;
 259                     keyinfo.MaxValueNameLen = reply->max_value;
 260                     keyinfo.MaxValueDataLen = reply->max_data;
 261                     memcpy( info, &keyinfo, min( length, fixed_size ) );
 262                 }
 263                 break;
 264             case KeyNodeInformation:
 265                 {
 266                     KEY_NODE_INFORMATION keyinfo;
 267                     fixed_size = (char *)keyinfo.Name - (char *)&keyinfo;
 268                     keyinfo.LastWriteTime.QuadPart = reply->modif;
 269                     keyinfo.TitleIndex = 0;
 270                     if (reply->namelen < wine_server_reply_size(reply))
 271                     {
 272                         keyinfo.ClassLength = wine_server_reply_size(reply) - reply->namelen;
 273                         keyinfo.ClassOffset = fixed_size + reply->namelen;
 274                     }
 275                     else
 276                     {
 277                         keyinfo.ClassLength = 0;
 278                         keyinfo.ClassOffset = -1;
 279                     }
 280                     keyinfo.NameLength = reply->namelen;
 281                     memcpy( info, &keyinfo, min( length, fixed_size ) );
 282                 }
 283                 break;
 284             case KeyNameInformation:
 285                 {
 286                     KEY_NAME_INFORMATION keyinfo;
 287                     fixed_size = (char *)keyinfo.Name - (char *)&keyinfo;
 288                     keyinfo.NameLength = reply->namelen;
 289                     memcpy( info, &keyinfo, min( length, fixed_size ) );
 290                 }
 291                 break;
 292             }
 293             *result_len = fixed_size + reply->total;
 294             if (length < *result_len) ret = STATUS_BUFFER_OVERFLOW;
 295         }
 296     }
 297     SERVER_END_REQ;
 298     return ret;
 299 }
 300
 301
 302
 303 /******************************************************************************
 304  * NtEnumerateKey [NTDLL.@]
 305  * ZwEnumerateKey [NTDLL.@]
 306  *
 307  * NOTES
 308  *  the name copied into the buffer is NOT 0-terminated
 309  */
 310 NTSTATUS WINAPI NtEnumerateKey( HANDLE handle, ULONG index, KEY_INFORMATION_CLASS info_class,
 311                                 void *info, DWORD length, DWORD *result_len )
 312 {
 313     /* -1 means query key, so avoid it here */
 314     if (index == (ULONG)-1) return STATUS_NO_MORE_ENTRIES;
 315     return enumerate_key( handle, index, info_class, info, length, result_len );
 316 }
 317
 318
 319 /******************************************************************************
 320  * RtlpNtEnumerateSubKey [NTDLL.@]
 321  *
 322  */
 323 NTSTATUS WINAPI RtlpNtEnumerateSubKey( HANDLE handle, UNICODE_STRING *out, ULONG index )
 324 {
 325   KEY_BASIC_INFORMATION *info;
 326   DWORD dwLen, dwResultLen;
 327   NTSTATUS ret;
 328
 329   if (out->Length)
 330   {
 331     dwLen = out->Length + sizeof(KEY_BASIC_INFORMATION);
 332     info = RtlAllocateHeap( GetProcessHeap(), 0, dwLen );
 333     if (!info)
 334       return STATUS_NO_MEMORY;
 335   }
 336   else
 337   {
 338     dwLen = 0;
 339     info = NULL;
 340   }
 341
 342   ret = NtEnumerateKey( handle, index, KeyBasicInformation, info, dwLen, &dwResultLen );
 343   dwResultLen -= sizeof(KEY_BASIC_INFORMATION);
 344
 345   if (ret == STATUS_BUFFER_OVERFLOW)
 346     out->Length = dwResultLen;
 347   else if (!ret)
 348   {
 349     if (out->Length < info->NameLength)
 350     {
 351       out->Length = dwResultLen;
 352       ret = STATUS_BUFFER_OVERFLOW;
 353     }
 354     else
 355     {
 356       out->Length = info->NameLength;
 357       memcpy(out->Buffer, info->Name, info->NameLength);
 358     }
 359   }
 360
 361   RtlFreeHeap( GetProcessHeap(), 0, info );
 362   return ret;
 363 }
 364
 365 /******************************************************************************
 366  * NtQueryKey [NTDLL.@]
 367  * ZwQueryKey [NTDLL.@]
 368  */
 369 NTSTATUS WINAPI NtQueryKey( HANDLE handle, KEY_INFORMATION_CLASS info_class,
 370                             void *info, DWORD length, DWORD *result_len )
 371 {
 372     return enumerate_key( handle, -1, info_class, info, length, result_len );
 373 }
 374
 375
 376 /* fill the key value info structure for a specific info class */
 377 static void copy_key_value_info( KEY_VALUE_INFORMATION_CLASS info_class, void *info,
 378                                  DWORD length, int type, int name_len, int data_len )
 379 {
 380     switch(info_class)
 381     {
 382     case KeyValueBasicInformation:
 383         {
 384             KEY_VALUE_BASIC_INFORMATION keyinfo;
 385             keyinfo.TitleIndex = 0;
 386             keyinfo.Type       = type;
 387             keyinfo.NameLength = name_len;
 388             length = min( length, (char *)keyinfo.Name - (char *)&keyinfo );
 389             memcpy( info, &keyinfo, length );
 390             break;
 391         }
 392     case KeyValueFullInformation:
 393         {
 394             KEY_VALUE_FULL_INFORMATION keyinfo;
 395             keyinfo.TitleIndex = 0;
 396             keyinfo.Type       = type;
 397             keyinfo.DataOffset = (char *)keyinfo.Name - (char *)&keyinfo + name_len;
 398             keyinfo.DataLength = data_len;
 399             keyinfo.NameLength = name_len;
 400             length = min( length, (char *)keyinfo.Name - (char *)&keyinfo );
 401             memcpy( info, &keyinfo, length );
 402             break;
 403         }
 404     case KeyValuePartialInformation:
 405         {
 406             KEY_VALUE_PARTIAL_INFORMATION keyinfo;
 407             keyinfo.TitleIndex = 0;
 408             keyinfo.Type       = type;
 409             keyinfo.DataLength = data_len;
 410             length = min( length, (char *)keyinfo.Data - (char *)&keyinfo );
 411             memcpy( info, &keyinfo, length );
 412             break;
 413         }
 414     default:
 415         break;
 416     }
 417 }
 418
 419
 420 /******************************************************************************
 421  *  NtEnumerateValueKey [NTDLL.@]
 422  *  ZwEnumerateValueKey [NTDLL.@]
 423  */
 424 NTSTATUS WINAPI NtEnumerateValueKey( HANDLE handle, ULONG index,
 425                                      KEY_VALUE_INFORMATION_CLASS info_class,
 426                                      void *info, DWORD length, DWORD *result_len )
 427 {
 428     NTSTATUS ret;
 429     void *ptr;
 430     size_t fixed_size;
 431
 432     TRACE( "(%p,%u,%d,%p,%d)\n", handle, index, info_class, info, length );
 433
 434     /* compute the length we want to retrieve */
 435     switch(info_class)
 436     {
 437     case KeyValueBasicInformation:   ptr = ((KEY_VALUE_BASIC_INFORMATION *)info)->Name; break;
 438     case KeyValueFullInformation:    ptr = ((KEY_VALUE_FULL_INFORMATION *)info)->Name; break;
 439     case KeyValuePartialInformation: ptr = ((KEY_VALUE_PARTIAL_INFORMATION *)info)->Data; break;
 440     default:
 441         FIXME( "Information class %d not implemented\n", info_class );
 442         return STATUS_INVALID_PARAMETER;
 443     }
 444     fixed_size = (char *)ptr - (char *)info;
 445
 446     SERVER_START_REQ( enum_key_value )
 447     {
 448         req->hkey       = wine_server_obj_handle( handle );
 449         req->index      = index;
 450         req->info_class = info_class;
 451         if (length > fixed_size) wine_server_set_reply( req, ptr, length - fixed_size );
 452         if (!(ret = wine_server_call( req )))
 453         {
 454             copy_key_value_info( info_class, info, length, reply->type, reply->namelen,
 455                                  wine_server_reply_size(reply) - reply->namelen );
 456             *result_len = fixed_size + reply->total;
 457             if (length < *result_len) ret = STATUS_BUFFER_OVERFLOW;
 458         }
 459     }
 460     SERVER_END_REQ;
 461     return ret;
 462 }
 463
 464
 465 /******************************************************************************
 466  * NtQueryValueKey [NTDLL.@]
 467  * ZwQueryValueKey [NTDLL.@]
 468  *
 469  * NOTES
 470  *  the name in the KeyValueInformation is never set
 471  */
 472 NTSTATUS WINAPI NtQueryValueKey( HANDLE handle, const UNICODE_STRING *name,
 473                                  KEY_VALUE_INFORMATION_CLASS info_class,
 474                                  void *info, DWORD length, DWORD *result_len )
 475 {
 476     NTSTATUS ret;
 477     UCHAR *data_ptr;
 478     unsigned int fixed_size = 0;
 479
 480     TRACE( "(%p,%s,%d,%p,%d)\n", handle, debugstr_us(name), info_class, info, length );
 481
 482     if (name->Length > MAX_NAME_LENGTH) return STATUS_BUFFER_OVERFLOW;
 483
 484     /* compute the length we want to retrieve */
 485     switch(info_class)
 486     {
 487     case KeyValueBasicInformation:
 488     {
 489         KEY_VALUE_BASIC_INFORMATION *basic_info = info;
 490         if (FIELD_OFFSET(KEY_VALUE_BASIC_INFORMATION, Name) < length)
 491         {
 492             memcpy(basic_info->Name, name->Buffer,
 493                    min(length - FIELD_OFFSET(KEY_VALUE_BASIC_INFORMATION, Name), name->Length));
 494         }
 495         fixed_size = FIELD_OFFSET(KEY_VALUE_BASIC_INFORMATION, Name) + name->Length;
 496         data_ptr = NULL;
 497         break;
 498     }
 499     case KeyValueFullInformation:
 500     {
 501         KEY_VALUE_FULL_INFORMATION *full_info = info;
 502         if (FIELD_OFFSET(KEY_VALUE_FULL_INFORMATION, Name) < length)
 503         {
 504             memcpy(full_info->Name, name->Buffer,
 505                    min(length - FIELD_OFFSET(KEY_VALUE_FULL_INFORMATION, Name), name->Length));
 506         }
 507         data_ptr = (UCHAR *)full_info->Name + name->Length;
 508         fixed_size = (char *)data_ptr - (char *)info;
 509         break;
 510     }
 511     case KeyValuePartialInformation:
 512         data_ptr = ((KEY_VALUE_PARTIAL_INFORMATION *)info)->Data;
 513         fixed_size = (char *)data_ptr - (char *)info;
 514         break;
 515     default:
 516         FIXME( "Information class %d not implemented\n", info_class );
 517         return STATUS_INVALID_PARAMETER;
 518     }
 519
 520     SERVER_START_REQ( get_key_value )
 521     {
 522         req->hkey = wine_server_obj_handle( handle );
 523         wine_server_add_data( req, name->Buffer, name->Length );
 524         if (length > fixed_size && data_ptr) wine_server_set_reply( req, data_ptr, length - fixed_size );
 525         if (!(ret = wine_server_call( req )))
 526         {
 527             copy_key_value_info( info_class, info, length, reply->type,
 528                                  name->Length, reply->total );
 529             *result_len = fixed_size + (info_class == KeyValueBasicInformation ? 0 : reply->total);
 530             if (length < *result_len) ret = STATUS_BUFFER_OVERFLOW;
 531         }
 532     }
 533     SERVER_END_REQ;
 534     return ret;
 535 }
 536
 537 /******************************************************************************
 538  * RtlpNtQueryValueKey [NTDLL.@]
 539  *
 540  */
 541 NTSTATUS WINAPI RtlpNtQueryValueKey( HANDLE handle, ULONG *result_type, PBYTE dest,
 542                                      DWORD *result_len, void *unknown )
 543 {
 544     KEY_VALUE_PARTIAL_INFORMATION *info;
 545     UNICODE_STRING name;
 546     NTSTATUS ret;
 547     DWORD dwResultLen;
 548     DWORD dwLen = sizeof (KEY_VALUE_PARTIAL_INFORMATION) + (result_len ? *result_len : 0);
 549
 550     info = RtlAllocateHeap( GetProcessHeap(), 0, dwLen );
 551     if (!info)
 552       return STATUS_NO_MEMORY;
 553
 554     name.Length = 0;
 555     ret = NtQueryValueKey( handle, &name, KeyValuePartialInformation, info, dwLen, &dwResultLen );
 556
 557     if (!ret || ret == STATUS_BUFFER_OVERFLOW)
 558     {
 559         if (result_len)
 560             *result_len = info->DataLength;
 561
 562         if (result_type)
 563             *result_type = info->Type;
 564
 565         if (ret != STATUS_BUFFER_OVERFLOW)
 566             memcpy( dest, info->Data, info->DataLength );
 567     }
 568
 569     RtlFreeHeap( GetProcessHeap(), 0, info );
 570     return ret;
 571 }
 572
 573 /******************************************************************************
 574  *  NtFlushKey  [NTDLL.@]
 575  *  ZwFlushKey  [NTDLL.@]
 576  */
 577 NTSTATUS WINAPI NtFlushKey(HANDLE key)
 578 {
 579     NTSTATUS ret;
 580
 581     TRACE("key=%p\n", key);
 582
 583     SERVER_START_REQ( flush_key )
 584     {
 585         req->hkey = wine_server_obj_handle( key );
 586         ret = wine_server_call( req );
 587     }
 588     SERVER_END_REQ;
 589
 590     return ret;
 591 }
 592
 593 /******************************************************************************
 594  *  NtLoadKey   [NTDLL.@]
 595  *  ZwLoadKey   [NTDLL.@]
 596  */
 597 NTSTATUS WINAPI NtLoadKey( const OBJECT_ATTRIBUTES *attr, OBJECT_ATTRIBUTES *file )
 598 {
 599     NTSTATUS ret;
 600     HANDLE hive;
 601     IO_STATUS_BLOCK io;
 602
 603     TRACE("(%p,%p)\n", attr, file);
 604
 605     ret = NtCreateFile(&hive, GENERIC_READ, file, &io, NULL, FILE_ATTRIBUTE_NORMAL, 0,
 606                        FILE_OPEN, 0, NULL, 0);
 607     if (ret) return ret;
 608
 609     SERVER_START_REQ( load_registry )
 610     {
 611         req->hkey = wine_server_obj_handle( attr->RootDirectory );
 612         req->file = wine_server_obj_handle( hive );
 613         wine_server_add_data(req, attr->ObjectName->Buffer, attr->ObjectName->Length);
 614         ret = wine_server_call( req );
 615     }
 616     SERVER_END_REQ;
 617
 618     NtClose(hive);
 619
 620     return ret;
 621 }
 622
 623 /******************************************************************************
 624  *  NtNotifyChangeKey   [NTDLL.@]
 625  *  ZwNotifyChangeKey   [NTDLL.@]
 626  */
 627 NTSTATUS WINAPI NtNotifyChangeKey(
 628         IN HANDLE KeyHandle,
 629         IN HANDLE Event,
 630         IN PIO_APC_ROUTINE ApcRoutine OPTIONAL,
 631         IN PVOID ApcContext OPTIONAL,
 632         OUT PIO_STATUS_BLOCK IoStatusBlock,
 633         IN ULONG CompletionFilter,
 634         IN BOOLEAN Asynchronous,
 635         OUT PVOID ChangeBuffer,
 636         IN ULONG Length,
 637         IN BOOLEAN WatchSubtree)
 638 {
 639     NTSTATUS ret;
 640
 641     TRACE("(%p,%p,%p,%p,%p,0x%08x, 0x%08x,%p,0x%08x,0x%08x)\n",
 642         KeyHandle, Event, ApcRoutine, ApcContext, IoStatusBlock, CompletionFilter,
 643         Asynchronous, ChangeBuffer, Length, WatchSubtree);
 644
 645     if (ApcRoutine || ApcContext || ChangeBuffer || Length)
 646         FIXME("Unimplemented optional parameter\n");
 647
 648     if (!Asynchronous)
 649     {
 650         OBJECT_ATTRIBUTES attr;
 651         InitializeObjectAttributes( &attr, NULL, 0, NULL, NULL );
 652         ret = NtCreateEvent( &Event, EVENT_ALL_ACCESS, &attr, FALSE, FALSE );
 653         if (ret != STATUS_SUCCESS)
 654             return ret;
 655     }
 656
 657     SERVER_START_REQ( set_registry_notification )
 658     {
 659         req->hkey    = wine_server_obj_handle( KeyHandle );
 660         req->event   = wine_server_obj_handle( Event );
 661         req->subtree = WatchSubtree;
 662         req->filter  = CompletionFilter;
 663         ret = wine_server_call( req );
 664     }
 665     SERVER_END_REQ;
 666
 667     if (!Asynchronous)
 668     {
 669         if (ret == STATUS_SUCCESS)
 670             NtWaitForSingleObject( Event, FALSE, NULL );
 671         NtClose( Event );
 672     }
 673
 674     return STATUS_SUCCESS;
 675 }
 676
 677 /******************************************************************************
 678  * NtQueryMultipleValueKey [NTDLL]
 679  * ZwQueryMultipleValueKey
 680  */
 681
 682 NTSTATUS WINAPI NtQueryMultipleValueKey(
 683         HANDLE KeyHandle,
 684         PKEY_MULTIPLE_VALUE_INFORMATION ListOfValuesToQuery,
 685         ULONG NumberOfItems,
 686         PVOID MultipleValueInformation,
 687         ULONG Length,
 688         PULONG  ReturnLength)
 689 {
 690         FIXME("(%p,%p,0x%08x,%p,0x%08x,%p) stub!\n",
 691         KeyHandle, ListOfValuesToQuery, NumberOfItems, MultipleValueInformation,
 692         Length,ReturnLength);
 693         return STATUS_SUCCESS;
 694 }
 695
 696 /******************************************************************************
 697  * NtReplaceKey [NTDLL.@]
 698  * ZwReplaceKey [NTDLL.@]
 699  */
 700 NTSTATUS WINAPI NtReplaceKey(
 701         IN POBJECT_ATTRIBUTES ObjectAttributes,
 702         IN HANDLE Key,
 703         IN POBJECT_ATTRIBUTES ReplacedObjectAttributes)
 704 {
 705     FIXME("(%s,%p,%s),stub!\n", debugstr_ObjectAttributes(ObjectAttributes), Key,
 706           debugstr_ObjectAttributes(ReplacedObjectAttributes) );
 707     return STATUS_SUCCESS;
 708 }
 709 /******************************************************************************
 710  * NtRestoreKey [NTDLL.@]
 711  * ZwRestoreKey [NTDLL.@]
 712  */
 713 NTSTATUS WINAPI NtRestoreKey(
 714         HANDLE KeyHandle,
 715         HANDLE FileHandle,
 716         ULONG RestoreFlags)
 717 {
 718         FIXME("(%p,%p,0x%08x) stub\n",
 719         KeyHandle, FileHandle, RestoreFlags);
 720         return STATUS_SUCCESS;
 721 }
 722 /******************************************************************************
 723  * NtSaveKey [NTDLL.@]
 724  * ZwSaveKey [NTDLL.@]
 725  */
 726 NTSTATUS WINAPI NtSaveKey(IN HANDLE KeyHandle, IN HANDLE FileHandle)
 727 {
 728     NTSTATUS ret;
 729
 730     TRACE("(%p,%p)\n", KeyHandle, FileHandle);
 731
 732     SERVER_START_REQ( save_registry )
 733     {
 734         req->hkey = wine_server_obj_handle( KeyHandle );
 735         req->file = wine_server_obj_handle( FileHandle );
 736         ret = wine_server_call( req );
 737     }
 738     SERVER_END_REQ;
 739
 740     return ret;
 741 }
 742 /******************************************************************************
 743  * NtSetInformationKey [NTDLL.@]
 744  * ZwSetInformationKey [NTDLL.@]
 745  */
 746 NTSTATUS WINAPI NtSetInformationKey(
 747         IN HANDLE KeyHandle,
 748         IN const int KeyInformationClass,
 749         IN PVOID KeyInformation,
 750         IN ULONG KeyInformationLength)
 751 {
 752         FIXME("(%p,0x%08x,%p,0x%08x) stub\n",
 753         KeyHandle, KeyInformationClass, KeyInformation, KeyInformationLength);
 754         return STATUS_SUCCESS;
 755 }
 756
 757
 758 /******************************************************************************
 759  * NtSetValueKey [NTDLL.@]
 760  * ZwSetValueKey [NTDLL.@]
 761  *
 762  * NOTES
 763  *   win95 does not care about count for REG_SZ and finds out the len by itself (js)
 764  *   NT does definitely care (aj)
 765  */
 766 NTSTATUS WINAPI NtSetValueKey( HANDLE hkey, const UNICODE_STRING *name, ULONG TitleIndex,
 767                                ULONG type, const void *data, ULONG count )
 768 {
 769     NTSTATUS ret;
 770
 771     TRACE( "(%p,%s,%d,%p,%d)\n", hkey, debugstr_us(name), type, data, count );
 772
 773     if (name->Length > MAX_NAME_LENGTH) return STATUS_BUFFER_OVERFLOW;
 774
 775     SERVER_START_REQ( set_key_value )
 776     {
 777         req->hkey    = wine_server_obj_handle( hkey );
 778         req->type    = type;
 779         req->namelen = name->Length;
 780         wine_server_add_data( req, name->Buffer, name->Length );
 781         wine_server_add_data( req, data, count );
 782         ret = wine_server_call( req );
 783     }
 784     SERVER_END_REQ;
 785     return ret;
 786 }
 787
 788 /******************************************************************************
 789  * RtlpNtSetValueKey [NTDLL.@]
 790  *
 791  */
 792 NTSTATUS WINAPI RtlpNtSetValueKey( HANDLE hkey, ULONG type, const void *data,
 793                                    ULONG count )
 794 {
 795     UNICODE_STRING name;
 796
 797     name.Length = 0;
 798     return NtSetValueKey( hkey, &name, 0, type, data, count );
 799 }
 800
 801 /******************************************************************************
 802  * NtUnloadKey [NTDLL.@]
 803  * ZwUnloadKey [NTDLL.@]
 804  */
 805 NTSTATUS WINAPI NtUnloadKey(IN POBJECT_ATTRIBUTES attr)
 806 {
 807     NTSTATUS ret;
 808
 809     TRACE("(%p)\n", attr);
 810
 811     SERVER_START_REQ( unload_registry )
 812     {
 813         req->hkey = wine_server_obj_handle( attr->RootDirectory );
 814         ret = wine_server_call(req);
 815     }
 816     SERVER_END_REQ;
 817
 818     return ret;
 819 }
 820
 821 /******************************************************************************
 822  *  RtlFormatCurrentUserKeyPath         [NTDLL.@]
 823  *
 824  */
 825 NTSTATUS WINAPI RtlFormatCurrentUserKeyPath( IN OUT PUNICODE_STRING KeyPath)
 826 {
 827     static const WCHAR pathW[] = {'\\','R','e','g','i','s','t','r','y','\\','U','s','e','r','\\'};
 828     HANDLE token;
 829     NTSTATUS status;
 830
 831     status = NtOpenThreadToken(GetCurrentThread(), TOKEN_READ, TRUE, &token);
 832     if (status == STATUS_NO_TOKEN)
 833         status = NtOpenProcessToken(GetCurrentProcess(), TOKEN_READ, &token);
 834     if (status == STATUS_SUCCESS)
 835     {
 836         char buffer[sizeof(TOKEN_USER) + sizeof(SID) + sizeof(DWORD)*SID_MAX_SUB_AUTHORITIES];
 837         DWORD len = sizeof(buffer);
 838
 839         status = NtQueryInformationToken(token, TokenUser, buffer, len, &len);
 840         if (status == STATUS_SUCCESS)
 841         {
 842             KeyPath->MaximumLength = 0;
 843             status = RtlConvertSidToUnicodeString(KeyPath, ((TOKEN_USER *)buffer)->User.Sid, FALSE);
 844             if (status == STATUS_BUFFER_OVERFLOW)
 845             {
 846                 PWCHAR buf = RtlAllocateHeap(GetProcessHeap(), 0,
 847                                              sizeof(pathW) + KeyPath->Length + sizeof(WCHAR));
 848                 if (buf)
 849                 {
 850                     memcpy(buf, pathW, sizeof(pathW));
 851                     KeyPath->MaximumLength = KeyPath->Length + sizeof(WCHAR);
 852                     KeyPath->Buffer = (PWCHAR)((LPBYTE)buf + sizeof(pathW));
 853                     status = RtlConvertSidToUnicodeString(KeyPath,
 854                                                           ((TOKEN_USER *)buffer)->User.Sid, FALSE);
 855                     KeyPath->Buffer = buf;
 856                     KeyPath->Length += sizeof(pathW);
 857                     KeyPath->MaximumLength += sizeof(pathW);
 858                 }
 859                 else
 860                     status = STATUS_NO_MEMORY;
 861             }
 862         }
 863         NtClose(token);
 864     }
 865     return status;
 866 }
 867
 868 /******************************************************************************
 869  *  RtlOpenCurrentUser          [NTDLL.@]
 870  *
 871  * NOTES
 872  *  If we return just HKEY_CURRENT_USER the advapi tries to find a remote
 873  *  registry (odd handle) and fails.
 874  */
 875 NTSTATUS WINAPI RtlOpenCurrentUser(
 876         IN ACCESS_MASK DesiredAccess, /* [in] */
 877         OUT PHANDLE KeyHandle)        /* [out] handle of HKEY_CURRENT_USER */
 878 {
 879         OBJECT_ATTRIBUTES ObjectAttributes;
 880         UNICODE_STRING ObjectName;
 881         NTSTATUS ret;
 882
 883         TRACE("(0x%08x, %p)\n",DesiredAccess, KeyHandle);
 884
 885         if ((ret = RtlFormatCurrentUserKeyPath(&ObjectName))) return ret;
 886         InitializeObjectAttributes(&ObjectAttributes,&ObjectName,OBJ_CASE_INSENSITIVE,0, NULL);
 887         ret = NtCreateKey(KeyHandle, DesiredAccess, &ObjectAttributes, 0, NULL, 0, NULL);
 888         RtlFreeUnicodeString(&ObjectName);
 889         return ret;
 890 }
 891
 892
 893 static NTSTATUS RTL_ReportRegistryValue(PKEY_VALUE_FULL_INFORMATION pInfo,
 894                                         PRTL_QUERY_REGISTRY_TABLE pQuery, PVOID pContext, PVOID pEnvironment)
 895 {
 896     PUNICODE_STRING str;
 897     UNICODE_STRING src, dst;
 898     LONG *bin;
 899     ULONG offset;
 900     PWSTR wstr;
 901     DWORD res;
 902     NTSTATUS status = STATUS_SUCCESS;
 903     ULONG len;
 904     LPWSTR String;
 905     ULONG count = 0;
 906
 907     if (pInfo == NULL)
 908     {
 909         if (pQuery->Flags & RTL_QUERY_REGISTRY_DIRECT)
 910             return STATUS_INVALID_PARAMETER;
 911         else
 912         {
 913             status = pQuery->QueryRoutine(pQuery->Name, pQuery->DefaultType, pQuery->DefaultData,
 914                                           pQuery->DefaultLength, pContext, pQuery->EntryContext);
 915         }
 916         return status;
 917     }
 918     len = pInfo->DataLength;
 919
 920     if (pQuery->Flags & RTL_QUERY_REGISTRY_DIRECT)
 921     {
 922         str = pQuery->EntryContext;
 923
 924         switch(pInfo->Type)
 925         {
 926         case REG_EXPAND_SZ:
 927             if (!(pQuery->Flags & RTL_QUERY_REGISTRY_NOEXPAND))
 928             {
 929                 RtlInitUnicodeString(&src, (WCHAR*)(((CHAR*)pInfo) + pInfo->DataOffset));
 930                 res = 0;
 931                 dst.MaximumLength = 0;
 932                 RtlExpandEnvironmentStrings_U(pEnvironment, &src, &dst, &res);
 933                 dst.Length = 0;
 934                 dst.MaximumLength = res;
 935                 dst.Buffer = RtlAllocateHeap(GetProcessHeap(), 0, res * sizeof(WCHAR));
 936                 RtlExpandEnvironmentStrings_U(pEnvironment, &src, &dst, &res);
 937                 status = pQuery->QueryRoutine(pQuery->Name, pInfo->Type, dst.Buffer,
 938                                      dst.Length, pContext, pQuery->EntryContext);
 939                 RtlFreeHeap(GetProcessHeap(), 0, dst.Buffer);
 940             }
 941
 942         case REG_SZ:
 943         case REG_LINK:
 944             if (str->Buffer == NULL)
 945                 RtlCreateUnicodeString(str, (WCHAR*)(((CHAR*)pInfo) + pInfo->DataOffset));
 946             else
 947                 RtlAppendUnicodeToString(str, (WCHAR*)(((CHAR*)pInfo) + pInfo->DataOffset));
 948             break;
 949
 950         case REG_MULTI_SZ:
 951             if (!(pQuery->Flags & RTL_QUERY_REGISTRY_NOEXPAND))
 952                 return STATUS_INVALID_PARAMETER;
 953
 954             if (str->Buffer == NULL)
 955             {
 956                 str->Buffer = RtlAllocateHeap(GetProcessHeap(), 0, len);
 957                 str->MaximumLength = len;
 958             }
 959             len = min(len, str->MaximumLength);
 960             memcpy(str->Buffer, ((CHAR*)pInfo) + pInfo->DataOffset, len);
 961             str->Length = len;
 962             break;
 963
 964         default:
 965             bin = pQuery->EntryContext;
 966             if (pInfo->DataLength <= sizeof(ULONG))
 967                 memcpy(bin, ((CHAR*)pInfo) + pInfo->DataOffset,
 968                     pInfo->DataLength);
 969             else
 970             {
 971                 if (bin[0] <= sizeof(ULONG))
 972                 {
 973                     memcpy(&bin[1], ((CHAR*)pInfo) + pInfo->DataOffset,
 974                     min(-bin[0], pInfo->DataLength));
 975                 }
 976                 else
 977                 {
 978                    len = min(bin[0], pInfo->DataLength);
 979                     bin[1] = len;
 980                     bin[2] = pInfo->Type;
 981                     memcpy(&bin[3], ((CHAR*)pInfo) + pInfo->DataOffset, len);
 982                 }
 983            }
 984            break;
 985         }
 986     }
 987     else
 988     {
 989         if((pQuery->Flags & RTL_QUERY_REGISTRY_NOEXPAND) ||
 990            (pInfo->Type != REG_EXPAND_SZ && pInfo->Type != REG_MULTI_SZ))
 991         {
 992             status = pQuery->QueryRoutine(pInfo->Name, pInfo->Type,
 993                 ((CHAR*)pInfo) + pInfo->DataOffset, pInfo->DataLength,
 994                 pContext, pQuery->EntryContext);
 995         }
 996         else if (pInfo->Type == REG_EXPAND_SZ)
 997         {
 998             RtlInitUnicodeString(&src, (WCHAR*)(((CHAR*)pInfo) + pInfo->DataOffset));
 999             res = 0;
1000             dst.MaximumLength = 0;
1001             RtlExpandEnvironmentStrings_U(pEnvironment, &src, &dst, &res);
1002             dst.Length = 0;
1003             dst.MaximumLength = res;
1004             dst.Buffer = RtlAllocateHeap(GetProcessHeap(), 0, res * sizeof(WCHAR));
1005             RtlExpandEnvironmentStrings_U(pEnvironment, &src, &dst, &res);
1006             status = pQuery->QueryRoutine(pQuery->Name, pInfo->Type, dst.Buffer,
1007                                           dst.Length, pContext, pQuery->EntryContext);
1008             RtlFreeHeap(GetProcessHeap(), 0, dst.Buffer);
1009         }
1010         else /* REG_MULTI_SZ */
1011         {
1012             if(pQuery->Flags & RTL_QUERY_REGISTRY_NOEXPAND)
1013             {
1014                 for (offset = 0; offset <= pInfo->DataLength; offset += len + sizeof(WCHAR))
1015                     {
1016                     wstr = (WCHAR*)(((CHAR*)pInfo) + offset);
1017                     len = strlenW(wstr) * sizeof(WCHAR);
1018                     status = pQuery->QueryRoutine(pQuery->Name, pInfo->Type, wstr, len,
1019                         pContext, pQuery->EntryContext);
1020                     if(status != STATUS_SUCCESS && status != STATUS_BUFFER_TOO_SMALL)
1021                         return status;
1022                     }
1023             }
1024             else
1025             {
1026                 while(count<=pInfo->DataLength)
1027                 {
1028                     String = (WCHAR*)(((CHAR*)pInfo) + pInfo->DataOffset)+count;
1029                     count+=strlenW(String)+1;
1030                     RtlInitUnicodeString(&src, (WCHAR*)(((CHAR*)pInfo) + pInfo->DataOffset));
1031                     res = 0;
1032                     dst.MaximumLength = 0;
1033                     RtlExpandEnvironmentStrings_U(pEnvironment, &src, &dst, &res);
1034                     dst.Length = 0;
1035                     dst.MaximumLength = res;
1036                     dst.Buffer = RtlAllocateHeap(GetProcessHeap(), 0, res * sizeof(WCHAR));
1037                     RtlExpandEnvironmentStrings_U(pEnvironment, &src, &dst, &res);
1038                     status = pQuery->QueryRoutine(pQuery->Name, pInfo->Type, dst.Buffer,
1039                                                   dst.Length, pContext, pQuery->EntryContext);
1040                     RtlFreeHeap(GetProcessHeap(), 0, dst.Buffer);
1041                     if(status != STATUS_SUCCESS && status != STATUS_BUFFER_TOO_SMALL)
1042                         return status;
1043                 }
1044             }
1045         }
1046     }
1047     return status;
1048 }
1049
1050
1051 static NTSTATUS RTL_GetKeyHandle(ULONG RelativeTo, PCWSTR Path, PHANDLE handle)
1052 {
1053     UNICODE_STRING KeyString;
1054     OBJECT_ATTRIBUTES regkey;
1055     PCWSTR base;
1056     INT len;
1057     NTSTATUS status;
1058
1059     static const WCHAR empty[] = {0};
1060     static const WCHAR control[] = {'\\','R','e','g','i','s','t','r','y','\\','M','a','c','h','i','n','e',
1061     '\\','S','y','s','t','e','m','\\','C','u','r','r','e','n','t','C','o','n','t','r','o','l','S','e','t','\\',
1062     'C','o','n','t','r','o','l','\\',0};
1063
1064     static const WCHAR devicemap[] = {'\\','R','e','g','i','s','t','r','y','\\','M','a','c','h','i','n','e','\\',
1065     'H','a','r','d','w','a','r','e','\\','D','e','v','i','c','e','M','a','p','\\',0};
1066
1067     static const WCHAR services[] = {'\\','R','e','g','i','s','t','r','y','\\','M','a','c','h','i','n','e','\\',
1068     'S','y','s','t','e','m','\\','C','u','r','r','e','n','t','C','o','n','t','r','o','l','S','e','t','\\',
1069     'S','e','r','v','i','c','e','s','\\',0};
1070
1071     static const WCHAR user[] = {'\\','R','e','g','i','s','t','r','y','\\','U','s','e','r','\\',
1072     'C','u','r','r','e','n','t','U','s','e','r','\\',0};
1073
1074     static const WCHAR windows_nt[] = {'\\','R','e','g','i','s','t','r','y','\\','M','a','c','h','i','n','e','\\',
1075     'S','o','f','t','w','a','r','e','\\','M','i','c','r','o','s','o','f','t','\\',
1076     'W','i','n','d','o','w','s',' ','N','T','\\','C','u','r','r','e','n','t','V','e','r','s','i','o','n','\\',0};
1077
1078     switch (RelativeTo & 0xff)
1079     {
1080     case RTL_REGISTRY_ABSOLUTE:
1081         base = empty;
1082         break;
1083
1084     case RTL_REGISTRY_CONTROL:
1085         base = control;
1086         break;
1087
1088     case RTL_REGISTRY_DEVICEMAP:
1089         base = devicemap;
1090         break;
1091
1092     case RTL_REGISTRY_SERVICES:
1093         base = services;
1094         break;
1095
1096     case RTL_REGISTRY_USER:
1097         base = user;
1098         break;
1099
1100     case RTL_REGISTRY_WINDOWS_NT:
1101         base = windows_nt;
1102         break;
1103
1104     default:
1105         return STATUS_INVALID_PARAMETER;
1106     }
1107
1108     len = (strlenW(base) + strlenW(Path) + 1) * sizeof(WCHAR);
1109     KeyString.Buffer = RtlAllocateHeap(GetProcessHeap(), 0, len);
1110     if (KeyString.Buffer == NULL)
1111         return STATUS_NO_MEMORY;
1112
1113     strcpyW(KeyString.Buffer, base);
1114     strcatW(KeyString.Buffer, Path);
1115     KeyString.Length = len - sizeof(WCHAR);
1116     KeyString.MaximumLength = len;
1117     InitializeObjectAttributes(&regkey, &KeyString, OBJ_CASE_INSENSITIVE, NULL, NULL);
1118     status = NtOpenKey(handle, KEY_ALL_ACCESS, &regkey);
1119     RtlFreeHeap(GetProcessHeap(), 0, KeyString.Buffer);
1120     return status;
1121 }
1122
1123 /*************************************************************************
1124  * RtlQueryRegistryValues   [NTDLL.@]
1125  *
1126  * Query multiple registry values with a signle call.
1127  *
1128  * PARAMS
1129  *  RelativeTo  [I] Registry path that Path refers to
1130  *  Path        [I] Path to key
1131  *  QueryTable  [I] Table of key values to query
1132  *  Context     [I] Parameter to pass to the application defined QueryRoutine function
1133  *  Environment [I] Optional parameter to use when performing expansion
1134  *
1135  * RETURNS
1136  *  STATUS_SUCCESS or an appropriate NTSTATUS error code.
1137  */
1138 NTSTATUS WINAPI RtlQueryRegistryValues(IN ULONG RelativeTo, IN PCWSTR Path,
1139                                        IN PRTL_QUERY_REGISTRY_TABLE QueryTable, IN PVOID Context,
1140                                        IN PVOID Environment OPTIONAL)
1141 {
1142     UNICODE_STRING Value;
1143     HANDLE handle, topkey;
1144     PKEY_VALUE_FULL_INFORMATION pInfo = NULL;
1145     ULONG len, buflen = 0;
1146     NTSTATUS status=STATUS_SUCCESS, ret = STATUS_SUCCESS;
1147     INT i;
1148
1149     TRACE("(%d, %s, %p, %p, %p)\n", RelativeTo, debugstr_w(Path), QueryTable, Context, Environment);
1150
1151     if(Path == NULL)
1152         return STATUS_INVALID_PARAMETER;
1153
1154     /* get a valid handle */
1155     if (RelativeTo & RTL_REGISTRY_HANDLE)
1156         topkey = handle = (HANDLE)Path;
1157     else
1158     {
1159         status = RTL_GetKeyHandle(RelativeTo, Path, &topkey);
1160         handle = topkey;
1161     }
1162     if(status != STATUS_SUCCESS)
1163         return status;
1164
1165     /* Process query table entries */
1166     for (; QueryTable->QueryRoutine != NULL || QueryTable->Name != NULL; ++QueryTable)
1167     {
1168         if (QueryTable->Flags &
1169             (RTL_QUERY_REGISTRY_SUBKEY | RTL_QUERY_REGISTRY_TOPKEY))
1170         {
1171             /* topkey must be kept open just in case we will reuse it later */
1172             if (handle != topkey)
1173                 NtClose(handle);
1174
1175             if (QueryTable->Flags & RTL_QUERY_REGISTRY_SUBKEY)
1176             {
1177                 handle = 0;
1178                 status = RTL_GetKeyHandle(PtrToUlong(QueryTable->Name), Path, &handle);
1179                 if(status != STATUS_SUCCESS)
1180                 {
1181                     ret = status;
1182                     goto out;
1183                 }
1184             }
1185             else
1186                 handle = topkey;
1187         }
1188
1189         if (QueryTable->Flags & RTL_QUERY_REGISTRY_NOVALUE)
1190         {
1191             QueryTable->QueryRoutine(QueryTable->Name, REG_NONE, NULL, 0,
1192                 Context, QueryTable->EntryContext);
1193             continue;
1194         }
1195
1196         if (!handle)
1197         {
1198             if (QueryTable->Flags & RTL_QUERY_REGISTRY_REQUIRED)
1199             {
1200                 ret = STATUS_OBJECT_NAME_NOT_FOUND;
1201                 goto out;
1202             }
1203             continue;
1204         }
1205
1206         if (QueryTable->Name == NULL)
1207         {
1208             if (QueryTable->Flags & RTL_QUERY_REGISTRY_DIRECT)
1209             {
1210                 ret = STATUS_INVALID_PARAMETER;
1211                 goto out;
1212             }
1213
1214             /* Report all subkeys */
1215             for (i = 0;; ++i)
1216             {
1217                 status = NtEnumerateValueKey(handle, i,
1218                     KeyValueFullInformation, pInfo, buflen, &len);
1219                 if (status == STATUS_NO_MORE_ENTRIES)
1220                     break;
1221                 if (status == STATUS_BUFFER_OVERFLOW ||
1222                     status == STATUS_BUFFER_TOO_SMALL)
1223                 {
1224                     buflen = len;
1225                     RtlFreeHeap(GetProcessHeap(), 0, pInfo);
1226                     pInfo = RtlAllocateHeap(GetProcessHeap(), 0, buflen);
1227                     NtEnumerateValueKey(handle, i, KeyValueFullInformation,
1228                         pInfo, buflen, &len);
1229                 }
1230
1231                 status = RTL_ReportRegistryValue(pInfo, QueryTable, Context, Environment);
1232                 if(status != STATUS_SUCCESS && status != STATUS_BUFFER_TOO_SMALL)
1233                 {
1234                     ret = status;
1235                     goto out;
1236                 }
1237                 if (QueryTable->Flags & RTL_QUERY_REGISTRY_DELETE)
1238                 {
1239                     RtlInitUnicodeString(&Value, pInfo->Name);
1240                     NtDeleteValueKey(handle, &Value);
1241                 }
1242             }
1243
1244             if (i == 0  && (QueryTable->Flags & RTL_QUERY_REGISTRY_REQUIRED))
1245             {
1246                 ret = STATUS_OBJECT_NAME_NOT_FOUND;
1247                 goto out;
1248             }
1249         }
1250         else
1251         {
1252             RtlInitUnicodeString(&Value, QueryTable->Name);
1253             status = NtQueryValueKey(handle, &Value, KeyValueFullInformation,
1254                 pInfo, buflen, &len);
1255             if (status == STATUS_BUFFER_OVERFLOW ||
1256                 status == STATUS_BUFFER_TOO_SMALL)
1257             {
1258                 buflen = len;
1259                 RtlFreeHeap(GetProcessHeap(), 0, pInfo);
1260                 pInfo = RtlAllocateHeap(GetProcessHeap(), 0, buflen);
1261                 status = NtQueryValueKey(handle, &Value,
1262                     KeyValueFullInformation, pInfo, buflen, &len);
1263             }
1264             if (status != STATUS_SUCCESS)
1265             {
1266                 if (QueryTable->Flags & RTL_QUERY_REGISTRY_REQUIRED)
1267                 {
1268                     ret = STATUS_OBJECT_NAME_NOT_FOUND;
1269                     goto out;
1270                 }
1271                 status = RTL_ReportRegistryValue(NULL, QueryTable, Context, Environment);
1272                 if(status != STATUS_SUCCESS && status != STATUS_BUFFER_TOO_SMALL)
1273                 {
1274                     ret = status;
1275                     goto out;
1276                 }
1277             }
1278             else
1279             {
1280                 status = RTL_ReportRegistryValue(pInfo, QueryTable, Context, Environment);
1281                 if(status != STATUS_SUCCESS && status != STATUS_BUFFER_TOO_SMALL)
1282                 {
1283                     ret = status;
1284                     goto out;
1285                 }
1286                 if (QueryTable->Flags & RTL_QUERY_REGISTRY_DELETE)
1287                     NtDeleteValueKey(handle, &Value);
1288             }
1289         }
1290     }
1291
1292 out:
1293     RtlFreeHeap(GetProcessHeap(), 0, pInfo);
1294     if (handle != topkey)
1295         NtClose(handle);
1296     NtClose(topkey);
1297     return ret;
1298 }
1299
1300 /*************************************************************************
1301  * RtlCheckRegistryKey   [NTDLL.@]
1302  *
1303  * Query multiple registry values with a signle call.
1304  *
1305  * PARAMS
1306  *  RelativeTo [I] Registry path that Path refers to
1307  *  Path       [I] Path to key
1308  *
1309  * RETURNS
1310  *  STATUS_SUCCESS if the specified key exists, or an NTSTATUS error code.
1311  */
1312 NTSTATUS WINAPI RtlCheckRegistryKey(IN ULONG RelativeTo, IN PWSTR Path)
1313 {
1314     HANDLE handle;
1315     NTSTATUS status;
1316
1317     TRACE("(%d, %s)\n", RelativeTo, debugstr_w(Path));
1318
1319     if((!RelativeTo) && Path == NULL)
1320         return STATUS_OBJECT_PATH_SYNTAX_BAD;
1321     if(RelativeTo & RTL_REGISTRY_HANDLE)
1322         return STATUS_SUCCESS;
1323
1324     status = RTL_GetKeyHandle(RelativeTo, Path, &handle);
1325     if (handle) NtClose(handle);
1326     if (status == STATUS_INVALID_HANDLE) status = STATUS_OBJECT_NAME_NOT_FOUND;
1327     return status;
1328 }
1329
1330 /*************************************************************************
1331  * RtlDeleteRegistryValue   [NTDLL.@]
1332  *
1333  * Query multiple registry values with a signle call.
1334  *
1335  * PARAMS
1336  *  RelativeTo [I] Registry path that Path refers to
1337  *  Path       [I] Path to key
1338  *  ValueName  [I] Name of the value to delete
1339  *
1340  * RETURNS
1341  *  STATUS_SUCCESS if the specified key is successfully deleted, or an NTSTATUS error code.
1342  */
1343 NTSTATUS WINAPI RtlDeleteRegistryValue(IN ULONG RelativeTo, IN PCWSTR Path, IN PCWSTR ValueName)
1344 {
1345     NTSTATUS status;
1346     HANDLE handle;
1347     UNICODE_STRING Value;
1348
1349     TRACE("(%d, %s, %s)\n", RelativeTo, debugstr_w(Path), debugstr_w(ValueName));
1350
1351     RtlInitUnicodeString(&Value, ValueName);
1352     if(RelativeTo == RTL_REGISTRY_HANDLE)
1353     {
1354         return NtDeleteValueKey((HANDLE)Path, &Value);
1355     }
1356     status = RTL_GetKeyHandle(RelativeTo, Path, &handle);
1357     if (status) return status;
1358     status = NtDeleteValueKey(handle, &Value);
1359     NtClose(handle);
1360     return status;
1361 }
1362
1363 /*************************************************************************
1364  * RtlWriteRegistryValue   [NTDLL.@]
1365  *
1366  * Sets the registry value with provided data.
1367  *
1368  * PARAMS
1369  *  RelativeTo [I] Registry path that path parameter refers to
1370  *  path       [I] Path to the key (or handle - see RTL_GetKeyHandle)
1371  *  name       [I] Name of the registry value to set
1372  *  type       [I] Type of the registry key to set
1373  *  data       [I] Pointer to the user data to be set
1374  *  length     [I] Length of the user data pointed by data
1375  *
1376  * RETURNS
1377  *  STATUS_SUCCESS if the specified key is successfully set,
1378  *  or an NTSTATUS error code.
1379  */
1380 NTSTATUS WINAPI RtlWriteRegistryValue( ULONG RelativeTo, PCWSTR path, PCWSTR name,
1381                                        ULONG type, PVOID data, ULONG length )
1382 {
1383     HANDLE hkey;
1384     NTSTATUS status;
1385     UNICODE_STRING str;
1386
1387     TRACE( "(%d, %s, %s) -> %d: %p [%d]\n", RelativeTo, debugstr_w(path), debugstr_w(name),
1388            type, data, length );
1389
1390     RtlInitUnicodeString( &str, name );
1391
1392     if (RelativeTo == RTL_REGISTRY_HANDLE)
1393         return NtSetValueKey( (HANDLE)path, &str, 0, type, data, length );
1394
1395     status = RTL_GetKeyHandle( RelativeTo, path, &hkey );
1396     if (status != STATUS_SUCCESS) return status;
1397
1398     status = NtSetValueKey( hkey, &str, 0, type, data, length );
1399     NtClose( hkey );
1400
1401     return status;
1402 }