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   1 /*
   2  * Registry functions
   3  *
   4  * Copyright (C) 1999 Juergen Schmied
   5  * Copyright (C) 2000 Alexandre Julliard
   6  * Copyright 2005 Ivan Leo Puoti, Laurent Pinchart
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  21  *
  22  * NOTES:
  23  *      HKEY_LOCAL_MACHINE      \\REGISTRY\\MACHINE
  24  *      HKEY_USERS              \\REGISTRY\\USER
  25  *      HKEY_CURRENT_CONFIG     \\REGISTRY\\MACHINE\\SYSTEM\\CURRENTCONTROLSET\\HARDWARE PROFILES\\CURRENT
  26   *     HKEY_CLASSES            \\REGISTRY\\MACHINE\\SOFTWARE\\CLASSES
  27  */
  28
  29 #include "config.h"
  30 #include "wine/port.h"
  31
  32 #include <stdarg.h>
  33 #include <stdio.h>
  34 #include <string.h>
  35
  36 #include "ntstatus.h"
  37 #define WIN32_NO_STATUS
  38 #include "wine/library.h"
  39 #include "ntdll_misc.h"
  40 #include "wine/debug.h"
  41 #include "wine/unicode.h"
  42
  43 WINE_DEFAULT_DEBUG_CHANNEL(reg);
  44
  45 /* maximum length of a key/value name in bytes (without terminating null) */
  46 #define MAX_NAME_LENGTH ((MAX_PATH-1) * sizeof(WCHAR))
  47
  48 /******************************************************************************
  49  * NtCreateKey [NTDLL.@]
  50  * ZwCreateKey [NTDLL.@]
  51  */
  52 NTSTATUS WINAPI NtCreateKey( PHANDLE retkey, ACCESS_MASK access, const OBJECT_ATTRIBUTES *attr,
  53                              ULONG TitleIndex, const UNICODE_STRING *class, ULONG options,
  54                              PULONG dispos )
  55 {
  56     NTSTATUS ret;
  57
  58     if (!retkey || !attr) return STATUS_ACCESS_VIOLATION;
  59     if (attr->Length > sizeof(OBJECT_ATTRIBUTES)) return STATUS_INVALID_PARAMETER;
  60     if (attr->ObjectName->Length > MAX_NAME_LENGTH) return STATUS_BUFFER_OVERFLOW;
  61
  62     TRACE( "(%p,%s,%s,%x,%x,%p)\n", attr->RootDirectory, debugstr_us(attr->ObjectName),
  63            debugstr_us(class), options, access, retkey );
  64
  65     SERVER_START_REQ( create_key )
  66     {
  67         req->parent     = attr->RootDirectory;
  68         req->access     = access;
  69         req->attributes = attr->Attributes;
  70         req->options    = options;
  71         req->modif      = 0;
  72         req->namelen    = attr->ObjectName->Length;
  73         wine_server_add_data( req, attr->ObjectName->Buffer, attr->ObjectName->Length );
  74         if (class) wine_server_add_data( req, class->Buffer, class->Length );
  75         if (!(ret = wine_server_call( req )))
  76         {
  77             *retkey = reply->hkey;
  78             if (dispos) *dispos = reply->created ? REG_CREATED_NEW_KEY : REG_OPENED_EXISTING_KEY;
  79         }
  80     }
  81     SERVER_END_REQ;
  82     TRACE("<- %p\n", *retkey);
  83     return ret;
  84 }
  85
  86 /******************************************************************************
  87  *  RtlpNtCreateKey [NTDLL.@]
  88  *
  89  *  See NtCreateKey.
  90  */
  91 NTSTATUS WINAPI RtlpNtCreateKey( PHANDLE retkey, ACCESS_MASK access, const OBJECT_ATTRIBUTES *attr,
  92                                  ULONG TitleIndex, const UNICODE_STRING *class, ULONG options,
  93                                  PULONG dispos )
  94 {
  95     OBJECT_ATTRIBUTES oa;
  96
  97     if (attr)
  98     {
  99         oa = *attr;
 100         oa.Attributes &= ~(OBJ_PERMANENT|OBJ_EXCLUSIVE);
 101         attr = &oa;
 102     }
 103
 104     return NtCreateKey(retkey, access, attr, 0, NULL, 0, dispos);
 105 }
 106
 107 /******************************************************************************
 108  * NtOpenKey [NTDLL.@]
 109  * ZwOpenKey [NTDLL.@]
 110  *
 111  *   OUT        HANDLE                  retkey (returns 0 when failure)
 112  *   IN         ACCESS_MASK             access
 113  *   IN         POBJECT_ATTRIBUTES      attr
 114  */
 115 NTSTATUS WINAPI NtOpenKey( PHANDLE retkey, ACCESS_MASK access, const OBJECT_ATTRIBUTES *attr )
 116 {
 117     NTSTATUS ret;
 118     DWORD len = attr->ObjectName->Length;
 119
 120     TRACE( "(%p,%s,%x,%p)\n", attr->RootDirectory,
 121            debugstr_us(attr->ObjectName), access, retkey );
 122
 123     if (len > MAX_NAME_LENGTH) return STATUS_BUFFER_OVERFLOW;
 124     if (!retkey) return STATUS_INVALID_PARAMETER;
 125
 126     SERVER_START_REQ( open_key )
 127     {
 128         req->parent     = attr->RootDirectory;
 129         req->access     = access;
 130         req->attributes = attr->Attributes;
 131         wine_server_add_data( req, attr->ObjectName->Buffer, len );
 132         ret = wine_server_call( req );
 133         *retkey = reply->hkey;
 134     }
 135     SERVER_END_REQ;
 136     TRACE("<- %p\n", *retkey);
 137     return ret;
 138 }
 139
 140 /******************************************************************************
 141  * RtlpNtOpenKey [NTDLL.@]
 142  *
 143  * See NtOpenKey.
 144  */
 145 NTSTATUS WINAPI RtlpNtOpenKey( PHANDLE retkey, ACCESS_MASK access, OBJECT_ATTRIBUTES *attr )
 146 {
 147     if (attr)
 148         attr->Attributes &= ~(OBJ_PERMANENT|OBJ_EXCLUSIVE);
 149     return NtOpenKey(retkey, access, attr);
 150 }
 151
 152 /******************************************************************************
 153  * NtDeleteKey [NTDLL.@]
 154  * ZwDeleteKey [NTDLL.@]
 155  */
 156 NTSTATUS WINAPI NtDeleteKey( HANDLE hkey )
 157 {
 158     NTSTATUS ret;
 159
 160     TRACE( "(%p)\n", hkey );
 161
 162     SERVER_START_REQ( delete_key )
 163     {
 164         req->hkey = hkey;
 165         ret = wine_server_call( req );
 166     }
 167     SERVER_END_REQ;
 168     return ret;
 169 }
 170
 171 /******************************************************************************
 172  * RtlpNtMakeTemporaryKey [NTDLL.@]
 173  *
 174  *  See NtDeleteKey.
 175  */
 176 NTSTATUS WINAPI RtlpNtMakeTemporaryKey( HANDLE hkey )
 177 {
 178     return NtDeleteKey(hkey);
 179 }
 180
 181 /******************************************************************************
 182  * NtDeleteValueKey [NTDLL.@]
 183  * ZwDeleteValueKey [NTDLL.@]
 184  */
 185 NTSTATUS WINAPI NtDeleteValueKey( HANDLE hkey, const UNICODE_STRING *name )
 186 {
 187     NTSTATUS ret;
 188
 189     TRACE( "(%p,%s)\n", hkey, debugstr_us(name) );
 190     if (name->Length > MAX_NAME_LENGTH) return STATUS_BUFFER_OVERFLOW;
 191
 192     SERVER_START_REQ( delete_key_value )
 193     {
 194         req->hkey = hkey;
 195         wine_server_add_data( req, name->Buffer, name->Length );
 196         ret = wine_server_call( req );
 197     }
 198     SERVER_END_REQ;
 199     return ret;
 200 }
 201
 202
 203 /******************************************************************************
 204  *     enumerate_key
 205  *
 206  * Implementation of NtQueryKey and NtEnumerateKey
 207  */
 208 static NTSTATUS enumerate_key( HANDLE handle, int index, KEY_INFORMATION_CLASS info_class,
 209                                void *info, DWORD length, DWORD *result_len )
 210
 211 {
 212     NTSTATUS ret;
 213     void *data_ptr;
 214     size_t fixed_size;
 215
 216     switch(info_class)
 217     {
 218     case KeyBasicInformation: data_ptr = ((KEY_BASIC_INFORMATION *)info)->Name; break;
 219     case KeyFullInformation:  data_ptr = ((KEY_FULL_INFORMATION *)info)->Class; break;
 220     case KeyNodeInformation:  data_ptr = ((KEY_NODE_INFORMATION *)info)->Name;  break;
 221     default:
 222         FIXME( "Information class %d not implemented\n", info_class );
 223         return STATUS_INVALID_PARAMETER;
 224     }
 225     fixed_size = (char *)data_ptr - (char *)info;
 226
 227     SERVER_START_REQ( enum_key )
 228     {
 229         req->hkey       = handle;
 230         req->index      = index;
 231         req->info_class = info_class;
 232         if (length > fixed_size) wine_server_set_reply( req, data_ptr, length - fixed_size );
 233         if (!(ret = wine_server_call( req )))
 234         {
 235             LARGE_INTEGER modif;
 236
 237             RtlSecondsSince1970ToTime( reply->modif, &modif );
 238
 239             switch(info_class)
 240             {
 241             case KeyBasicInformation:
 242                 {
 243                     KEY_BASIC_INFORMATION keyinfo;
 244                     fixed_size = (char *)keyinfo.Name - (char *)&keyinfo;
 245                     keyinfo.LastWriteTime = modif;
 246                     keyinfo.TitleIndex = 0;
 247                     keyinfo.NameLength = reply->namelen;
 248                     memcpy( info, &keyinfo, min( length, fixed_size ) );
 249                 }
 250                 break;
 251             case KeyFullInformation:
 252                 {
 253                     KEY_FULL_INFORMATION keyinfo;
 254                     fixed_size = (char *)keyinfo.Class - (char *)&keyinfo;
 255                     keyinfo.LastWriteTime = modif;
 256                     keyinfo.TitleIndex = 0;
 257                     keyinfo.ClassLength = wine_server_reply_size(reply);
 258                     keyinfo.ClassOffset = keyinfo.ClassLength ? fixed_size : -1;
 259                     keyinfo.SubKeys = reply->subkeys;
 260                     keyinfo.MaxNameLen = reply->max_subkey;
 261                     keyinfo.MaxClassLen = reply->max_class;
 262                     keyinfo.Values = reply->values;
 263                     keyinfo.MaxValueNameLen = reply->max_value;
 264                     keyinfo.MaxValueDataLen = reply->max_data;
 265                     memcpy( info, &keyinfo, min( length, fixed_size ) );
 266                 }
 267                 break;
 268             case KeyNodeInformation:
 269                 {
 270                     KEY_NODE_INFORMATION keyinfo;
 271                     fixed_size = (char *)keyinfo.Name - (char *)&keyinfo;
 272                     keyinfo.LastWriteTime = modif;
 273                     keyinfo.TitleIndex = 0;
 274                     if (reply->namelen < wine_server_reply_size(reply))
 275                     {
 276                         keyinfo.ClassLength = wine_server_reply_size(reply) - reply->namelen;
 277                         keyinfo.ClassOffset = fixed_size + reply->namelen;
 278                     }
 279                     else
 280                     {
 281                         keyinfo.ClassLength = 0;
 282                         keyinfo.ClassOffset = -1;
 283                     }
 284                     keyinfo.NameLength = reply->namelen;
 285                     memcpy( info, &keyinfo, min( length, fixed_size ) );
 286                 }
 287                 break;
 288             }
 289             *result_len = fixed_size + reply->total;
 290             if (length < *result_len) ret = STATUS_BUFFER_OVERFLOW;
 291         }
 292     }
 293     SERVER_END_REQ;
 294     return ret;
 295 }
 296
 297
 298
 299 /******************************************************************************
 300  * NtEnumerateKey [NTDLL.@]
 301  * ZwEnumerateKey [NTDLL.@]
 302  *
 303  * NOTES
 304  *  the name copied into the buffer is NOT 0-terminated
 305  */
 306 NTSTATUS WINAPI NtEnumerateKey( HANDLE handle, ULONG index, KEY_INFORMATION_CLASS info_class,
 307                                 void *info, DWORD length, DWORD *result_len )
 308 {
 309     /* -1 means query key, so avoid it here */
 310     if (index == (ULONG)-1) return STATUS_NO_MORE_ENTRIES;
 311     return enumerate_key( handle, index, info_class, info, length, result_len );
 312 }
 313
 314
 315 /******************************************************************************
 316  * RtlpNtEnumerateSubKey [NTDLL.@]
 317  *
 318  */
 319 NTSTATUS WINAPI RtlpNtEnumerateSubKey( HANDLE handle, UNICODE_STRING *out, ULONG index )
 320 {
 321   KEY_BASIC_INFORMATION *info;
 322   DWORD dwLen, dwResultLen;
 323   NTSTATUS ret;
 324
 325   if (out->Length)
 326   {
 327     dwLen = out->Length + sizeof(KEY_BASIC_INFORMATION);
 328     info = (KEY_BASIC_INFORMATION*)RtlAllocateHeap( GetProcessHeap(), 0, dwLen );
 329     if (!info)
 330       return STATUS_NO_MEMORY;
 331   }
 332   else
 333   {
 334     dwLen = 0;
 335     info = NULL;
 336   }
 337
 338   ret = NtEnumerateKey( handle, index, KeyBasicInformation, info, dwLen, &dwResultLen );
 339   dwResultLen -= sizeof(KEY_BASIC_INFORMATION);
 340
 341   if (ret == STATUS_BUFFER_OVERFLOW)
 342     out->Length = dwResultLen;
 343   else if (!ret)
 344   {
 345     if (out->Length < info->NameLength)
 346     {
 347       out->Length = dwResultLen;
 348       ret = STATUS_BUFFER_OVERFLOW;
 349     }
 350     else
 351     {
 352       out->Length = info->NameLength;
 353       memcpy(out->Buffer, info->Name, info->NameLength);
 354     }
 355   }
 356
 357   RtlFreeHeap( GetProcessHeap(), 0, info );
 358   return ret;
 359 }
 360
 361 /******************************************************************************
 362  * NtQueryKey [NTDLL.@]
 363  * ZwQueryKey [NTDLL.@]
 364  */
 365 NTSTATUS WINAPI NtQueryKey( HANDLE handle, KEY_INFORMATION_CLASS info_class,
 366                             void *info, DWORD length, DWORD *result_len )
 367 {
 368     return enumerate_key( handle, -1, info_class, info, length, result_len );
 369 }
 370
 371
 372 /* fill the key value info structure for a specific info class */
 373 static void copy_key_value_info( KEY_VALUE_INFORMATION_CLASS info_class, void *info,
 374                                  DWORD length, int type, int name_len, int data_len )
 375 {
 376     switch(info_class)
 377     {
 378     case KeyValueBasicInformation:
 379         {
 380             KEY_VALUE_BASIC_INFORMATION keyinfo;
 381             keyinfo.TitleIndex = 0;
 382             keyinfo.Type       = type;
 383             keyinfo.NameLength = name_len;
 384             length = min( length, (char *)keyinfo.Name - (char *)&keyinfo );
 385             memcpy( info, &keyinfo, length );
 386             break;
 387         }
 388     case KeyValueFullInformation:
 389         {
 390             KEY_VALUE_FULL_INFORMATION keyinfo;
 391             keyinfo.TitleIndex = 0;
 392             keyinfo.Type       = type;
 393             keyinfo.DataOffset = (char *)keyinfo.Name - (char *)&keyinfo + name_len;
 394             keyinfo.DataLength = data_len;
 395             keyinfo.NameLength = name_len;
 396             length = min( length, (char *)keyinfo.Name - (char *)&keyinfo );
 397             memcpy( info, &keyinfo, length );
 398             break;
 399         }
 400     case KeyValuePartialInformation:
 401         {
 402             KEY_VALUE_PARTIAL_INFORMATION keyinfo;
 403             keyinfo.TitleIndex = 0;
 404             keyinfo.Type       = type;
 405             keyinfo.DataLength = data_len;
 406             length = min( length, (char *)keyinfo.Data - (char *)&keyinfo );
 407             memcpy( info, &keyinfo, length );
 408             break;
 409         }
 410     default:
 411         break;
 412     }
 413 }
 414
 415
 416 /******************************************************************************
 417  *  NtEnumerateValueKey [NTDLL.@]
 418  *  ZwEnumerateValueKey [NTDLL.@]
 419  */
 420 NTSTATUS WINAPI NtEnumerateValueKey( HANDLE handle, ULONG index,
 421                                      KEY_VALUE_INFORMATION_CLASS info_class,
 422                                      void *info, DWORD length, DWORD *result_len )
 423 {
 424     NTSTATUS ret;
 425     void *ptr;
 426     size_t fixed_size;
 427
 428     TRACE( "(%p,%u,%d,%p,%d)\n", handle, index, info_class, info, length );
 429
 430     /* compute the length we want to retrieve */
 431     switch(info_class)
 432     {
 433     case KeyValueBasicInformation:   ptr = ((KEY_VALUE_BASIC_INFORMATION *)info)->Name; break;
 434     case KeyValueFullInformation:    ptr = ((KEY_VALUE_FULL_INFORMATION *)info)->Name; break;
 435     case KeyValuePartialInformation: ptr = ((KEY_VALUE_PARTIAL_INFORMATION *)info)->Data; break;
 436     default:
 437         FIXME( "Information class %d not implemented\n", info_class );
 438         return STATUS_INVALID_PARAMETER;
 439     }
 440     fixed_size = (char *)ptr - (char *)info;
 441
 442     SERVER_START_REQ( enum_key_value )
 443     {
 444         req->hkey       = handle;
 445         req->index      = index;
 446         req->info_class = info_class;
 447         if (length > fixed_size) wine_server_set_reply( req, ptr, length - fixed_size );
 448         if (!(ret = wine_server_call( req )))
 449         {
 450             copy_key_value_info( info_class, info, length, reply->type, reply->namelen,
 451                                  wine_server_reply_size(reply) - reply->namelen );
 452             *result_len = fixed_size + reply->total;
 453             if (length < *result_len) ret = STATUS_BUFFER_OVERFLOW;
 454         }
 455     }
 456     SERVER_END_REQ;
 457     return ret;
 458 }
 459
 460
 461 /******************************************************************************
 462  * NtQueryValueKey [NTDLL.@]
 463  * ZwQueryValueKey [NTDLL.@]
 464  *
 465  * NOTES
 466  *  the name in the KeyValueInformation is never set
 467  */
 468 NTSTATUS WINAPI NtQueryValueKey( HANDLE handle, const UNICODE_STRING *name,
 469                                  KEY_VALUE_INFORMATION_CLASS info_class,
 470                                  void *info, DWORD length, DWORD *result_len )
 471 {
 472     NTSTATUS ret;
 473     UCHAR *data_ptr;
 474     unsigned int fixed_size = 0;
 475
 476     TRACE( "(%p,%s,%d,%p,%d)\n", handle, debugstr_us(name), info_class, info, length );
 477
 478     if (name->Length > MAX_NAME_LENGTH) return STATUS_BUFFER_OVERFLOW;
 479
 480     /* compute the length we want to retrieve */
 481     switch(info_class)
 482     {
 483     case KeyValueBasicInformation:
 484     {
 485         KEY_VALUE_BASIC_INFORMATION *basic_info = info;
 486         if (FIELD_OFFSET(KEY_VALUE_BASIC_INFORMATION, Name) < length)
 487         {
 488             memcpy(basic_info->Name, name->Buffer,
 489                    min(length - FIELD_OFFSET(KEY_VALUE_BASIC_INFORMATION, Name), name->Length));
 490         }
 491         fixed_size = FIELD_OFFSET(KEY_VALUE_BASIC_INFORMATION, Name) + name->Length;
 492         data_ptr = NULL;
 493         break;
 494     }
 495     case KeyValueFullInformation:
 496     {
 497         KEY_VALUE_FULL_INFORMATION *full_info = info;
 498         if (FIELD_OFFSET(KEY_VALUE_FULL_INFORMATION, Name) < length)
 499         {
 500             memcpy(full_info->Name, name->Buffer,
 501                    min(length - FIELD_OFFSET(KEY_VALUE_FULL_INFORMATION, Name), name->Length));
 502         }
 503         data_ptr = (UCHAR *)full_info->Name + name->Length;
 504         fixed_size = (char *)data_ptr - (char *)info;
 505         break;
 506     }
 507     case KeyValuePartialInformation:
 508         data_ptr = ((KEY_VALUE_PARTIAL_INFORMATION *)info)->Data;
 509         fixed_size = (char *)data_ptr - (char *)info;
 510         break;
 511     default:
 512         FIXME( "Information class %d not implemented\n", info_class );
 513         return STATUS_INVALID_PARAMETER;
 514     }
 515
 516     SERVER_START_REQ( get_key_value )
 517     {
 518         req->hkey = handle;
 519         wine_server_add_data( req, name->Buffer, name->Length );
 520         if (length > fixed_size && data_ptr) wine_server_set_reply( req, data_ptr, length - fixed_size );
 521         if (!(ret = wine_server_call( req )))
 522         {
 523             copy_key_value_info( info_class, info, length, reply->type,
 524                                  name->Length, reply->total );
 525             *result_len = fixed_size + (info_class == KeyValueBasicInformation ? 0 : reply->total);
 526             if (length < *result_len) ret = STATUS_BUFFER_OVERFLOW;
 527         }
 528     }
 529     SERVER_END_REQ;
 530     return ret;
 531 }
 532
 533 /******************************************************************************
 534  * RtlpNtQueryValueKey [NTDLL.@]
 535  *
 536  */
 537 NTSTATUS WINAPI RtlpNtQueryValueKey( HANDLE handle, ULONG *result_type, PBYTE dest,
 538                                      DWORD *result_len )
 539 {
 540     KEY_VALUE_PARTIAL_INFORMATION *info;
 541     UNICODE_STRING name;
 542     NTSTATUS ret;
 543     DWORD dwResultLen;
 544     DWORD dwLen = sizeof (KEY_VALUE_PARTIAL_INFORMATION) + (result_len ? *result_len : 0);
 545
 546     info = (KEY_VALUE_PARTIAL_INFORMATION*)RtlAllocateHeap( GetProcessHeap(), 0, dwLen );
 547     if (!info)
 548       return STATUS_NO_MEMORY;
 549
 550     name.Length = 0;
 551     ret = NtQueryValueKey( handle, &name, KeyValuePartialInformation, info, dwLen, &dwResultLen );
 552
 553     if (!ret || ret == STATUS_BUFFER_OVERFLOW)
 554     {
 555         if (result_len)
 556             *result_len = info->DataLength;
 557
 558         if (result_type)
 559             *result_type = info->Type;
 560
 561         if (ret != STATUS_BUFFER_OVERFLOW)
 562             memcpy( dest, info->Data, info->DataLength );
 563     }
 564
 565     RtlFreeHeap( GetProcessHeap(), 0, info );
 566     return ret;
 567 }
 568
 569 /******************************************************************************
 570  *  NtFlushKey  [NTDLL.@]
 571  *  ZwFlushKey  [NTDLL.@]
 572  */
 573 NTSTATUS WINAPI NtFlushKey(HANDLE key)
 574 {
 575     NTSTATUS ret;
 576
 577     TRACE("key=%p\n", key);
 578
 579     SERVER_START_REQ( flush_key )
 580     {
 581         req->hkey = key;
 582         ret = wine_server_call( req );
 583     }
 584     SERVER_END_REQ;
 585
 586     return ret;
 587 }
 588
 589 /******************************************************************************
 590  *  NtLoadKey   [NTDLL.@]
 591  *  ZwLoadKey   [NTDLL.@]
 592  */
 593 NTSTATUS WINAPI NtLoadKey( const OBJECT_ATTRIBUTES *attr, OBJECT_ATTRIBUTES *file )
 594 {
 595     NTSTATUS ret;
 596     HANDLE hive;
 597     IO_STATUS_BLOCK io;
 598
 599     TRACE("(%p,%p)\n", attr, file);
 600
 601     ret = NtCreateFile(&hive, GENERIC_READ, file, &io, NULL, FILE_ATTRIBUTE_NORMAL, 0,
 602                        FILE_OPEN, 0, NULL, 0);
 603     if (ret) return ret;
 604
 605     SERVER_START_REQ( load_registry )
 606     {
 607         req->hkey = attr->RootDirectory;
 608         req->file = hive;
 609         wine_server_add_data(req, attr->ObjectName->Buffer, attr->ObjectName->Length);
 610         ret = wine_server_call( req );
 611     }
 612     SERVER_END_REQ;
 613
 614     NtClose(hive);
 615
 616     return ret;
 617 }
 618
 619 /******************************************************************************
 620  *  NtNotifyChangeKey   [NTDLL.@]
 621  *  ZwNotifyChangeKey   [NTDLL.@]
 622  */
 623 NTSTATUS WINAPI NtNotifyChangeKey(
 624         IN HANDLE KeyHandle,
 625         IN HANDLE Event,
 626         IN PIO_APC_ROUTINE ApcRoutine OPTIONAL,
 627         IN PVOID ApcContext OPTIONAL,
 628         OUT PIO_STATUS_BLOCK IoStatusBlock,
 629         IN ULONG CompletionFilter,
 630         IN BOOLEAN Asynchronous,
 631         OUT PVOID ChangeBuffer,
 632         IN ULONG Length,
 633         IN BOOLEAN WatchSubtree)
 634 {
 635     NTSTATUS ret;
 636
 637     TRACE("(%p,%p,%p,%p,%p,0x%08x, 0x%08x,%p,0x%08x,0x%08x)\n",
 638         KeyHandle, Event, ApcRoutine, ApcContext, IoStatusBlock, CompletionFilter,
 639         Asynchronous, ChangeBuffer, Length, WatchSubtree);
 640
 641     if (ApcRoutine || ApcContext || ChangeBuffer || Length)
 642         FIXME("Unimplemented optional parameter\n");
 643
 644     if (!Asynchronous)
 645     {
 646         OBJECT_ATTRIBUTES attr;
 647         InitializeObjectAttributes( &attr, NULL, 0, NULL, NULL );
 648         ret = NtCreateEvent( &Event, EVENT_ALL_ACCESS, &attr, FALSE, FALSE );
 649         if (ret != STATUS_SUCCESS)
 650             return ret;
 651     }
 652
 653     SERVER_START_REQ( set_registry_notification )
 654     {
 655         req->hkey    = KeyHandle;
 656         req->event   = Event;
 657         req->subtree = WatchSubtree;
 658         req->filter  = CompletionFilter;
 659         ret = wine_server_call( req );
 660     }
 661     SERVER_END_REQ;
 662
 663     if (!Asynchronous)
 664     {
 665         if (ret == STATUS_SUCCESS)
 666             NtWaitForSingleObject( Event, FALSE, NULL );
 667         NtClose( Event );
 668     }
 669
 670     return STATUS_SUCCESS;
 671 }
 672
 673 /******************************************************************************
 674  * NtQueryMultipleValueKey [NTDLL]
 675  * ZwQueryMultipleValueKey
 676  */
 677
 678 NTSTATUS WINAPI NtQueryMultipleValueKey(
 679         HANDLE KeyHandle,
 680         PKEY_MULTIPLE_VALUE_INFORMATION ListOfValuesToQuery,
 681         ULONG NumberOfItems,
 682         PVOID MultipleValueInformation,
 683         ULONG Length,
 684         PULONG  ReturnLength)
 685 {
 686         FIXME("(%p,%p,0x%08x,%p,0x%08x,%p) stub!\n",
 687         KeyHandle, ListOfValuesToQuery, NumberOfItems, MultipleValueInformation,
 688         Length,ReturnLength);
 689         return STATUS_SUCCESS;
 690 }
 691
 692 /******************************************************************************
 693  * NtReplaceKey [NTDLL.@]
 694  * ZwReplaceKey [NTDLL.@]
 695  */
 696 NTSTATUS WINAPI NtReplaceKey(
 697         IN POBJECT_ATTRIBUTES ObjectAttributes,
 698         IN HANDLE Key,
 699         IN POBJECT_ATTRIBUTES ReplacedObjectAttributes)
 700 {
 701         FIXME("(%p),stub!\n", Key);
 702         dump_ObjectAttributes(ObjectAttributes);
 703         dump_ObjectAttributes(ReplacedObjectAttributes);
 704         return STATUS_SUCCESS;
 705 }
 706 /******************************************************************************
 707  * NtRestoreKey [NTDLL.@]
 708  * ZwRestoreKey [NTDLL.@]
 709  */
 710 NTSTATUS WINAPI NtRestoreKey(
 711         HANDLE KeyHandle,
 712         HANDLE FileHandle,
 713         ULONG RestoreFlags)
 714 {
 715         FIXME("(%p,%p,0x%08x) stub\n",
 716         KeyHandle, FileHandle, RestoreFlags);
 717         return STATUS_SUCCESS;
 718 }
 719 /******************************************************************************
 720  * NtSaveKey [NTDLL.@]
 721  * ZwSaveKey [NTDLL.@]
 722  */
 723 NTSTATUS WINAPI NtSaveKey(IN HANDLE KeyHandle, IN HANDLE FileHandle)
 724 {
 725     NTSTATUS ret;
 726
 727     TRACE("(%p,%p)\n", KeyHandle, FileHandle);
 728
 729     SERVER_START_REQ( save_registry )
 730     {
 731         req->hkey = KeyHandle;
 732         req->file = FileHandle;
 733         ret = wine_server_call( req );
 734     }
 735     SERVER_END_REQ;
 736
 737     return ret;
 738 }
 739 /******************************************************************************
 740  * NtSetInformationKey [NTDLL.@]
 741  * ZwSetInformationKey [NTDLL.@]
 742  */
 743 NTSTATUS WINAPI NtSetInformationKey(
 744         IN HANDLE KeyHandle,
 745         IN const int KeyInformationClass,
 746         IN PVOID KeyInformation,
 747         IN ULONG KeyInformationLength)
 748 {
 749         FIXME("(%p,0x%08x,%p,0x%08x) stub\n",
 750         KeyHandle, KeyInformationClass, KeyInformation, KeyInformationLength);
 751         return STATUS_SUCCESS;
 752 }
 753
 754
 755 /******************************************************************************
 756  * NtSetValueKey [NTDLL.@]
 757  * ZwSetValueKey [NTDLL.@]
 758  *
 759  * NOTES
 760  *   win95 does not care about count for REG_SZ and finds out the len by itself (js)
 761  *   NT does definitely care (aj)
 762  */
 763 NTSTATUS WINAPI NtSetValueKey( HANDLE hkey, const UNICODE_STRING *name, ULONG TitleIndex,
 764                                ULONG type, const void *data, ULONG count )
 765 {
 766     NTSTATUS ret;
 767
 768     TRACE( "(%p,%s,%d,%p,%d)\n", hkey, debugstr_us(name), type, data, count );
 769
 770     if (name->Length > MAX_NAME_LENGTH) return STATUS_BUFFER_OVERFLOW;
 771
 772     SERVER_START_REQ( set_key_value )
 773     {
 774         req->hkey    = hkey;
 775         req->type    = type;
 776         req->namelen = name->Length;
 777         wine_server_add_data( req, name->Buffer, name->Length );
 778         wine_server_add_data( req, data, count );
 779         ret = wine_server_call( req );
 780     }
 781     SERVER_END_REQ;
 782     return ret;
 783 }
 784
 785 /******************************************************************************
 786  * RtlpNtSetValueKey [NTDLL.@]
 787  *
 788  */
 789 NTSTATUS WINAPI RtlpNtSetValueKey( HANDLE hkey, ULONG type, const void *data,
 790                                    ULONG count )
 791 {
 792     UNICODE_STRING name;
 793
 794     name.Length = 0;
 795     return NtSetValueKey( hkey, &name, 0, type, data, count );
 796 }
 797
 798 /******************************************************************************
 799  * NtUnloadKey [NTDLL.@]
 800  * ZwUnloadKey [NTDLL.@]
 801  */
 802 NTSTATUS WINAPI NtUnloadKey(IN POBJECT_ATTRIBUTES attr)
 803 {
 804     NTSTATUS ret;
 805
 806     TRACE("(%p)\n", attr);
 807
 808     SERVER_START_REQ( unload_registry )
 809     {
 810         req->hkey = attr->RootDirectory;
 811         ret = wine_server_call(req);
 812     }
 813     SERVER_END_REQ;
 814
 815     return ret;
 816 }
 817
 818 /******************************************************************************
 819  *  RtlFormatCurrentUserKeyPath         [NTDLL.@]
 820  *
 821  */
 822 NTSTATUS WINAPI RtlFormatCurrentUserKeyPath( IN OUT PUNICODE_STRING KeyPath)
 823 {
 824     static const WCHAR pathW[] = {'\\','R','e','g','i','s','t','r','y','\\','U','s','e','r','\\'};
 825     HANDLE token;
 826     NTSTATUS status;
 827
 828     status = NtOpenThreadToken(GetCurrentThread(), TOKEN_READ, TRUE, &token);
 829     if (status == STATUS_NO_TOKEN)
 830         status = NtOpenProcessToken(GetCurrentProcess(), TOKEN_READ, &token);
 831     if (status == STATUS_SUCCESS)
 832     {
 833         char buffer[sizeof(TOKEN_USER) + sizeof(SID) + sizeof(DWORD)*SID_MAX_SUB_AUTHORITIES];
 834         DWORD len = sizeof(buffer);
 835
 836         status = NtQueryInformationToken(token, TokenUser, buffer, len, &len);
 837         if (status == STATUS_SUCCESS)
 838         {
 839             KeyPath->MaximumLength = 0;
 840             status = RtlConvertSidToUnicodeString(KeyPath, ((TOKEN_USER *)buffer)->User.Sid, FALSE);
 841             if (status == STATUS_BUFFER_OVERFLOW)
 842             {
 843                 PWCHAR buf = RtlAllocateHeap(GetProcessHeap(), 0,
 844                                              sizeof(pathW) + KeyPath->Length + sizeof(WCHAR));
 845                 if (buf)
 846                 {
 847                     memcpy(buf, pathW, sizeof(pathW));
 848                     KeyPath->MaximumLength = KeyPath->Length + sizeof(WCHAR);
 849                     KeyPath->Buffer = (PWCHAR)((LPBYTE)buf + sizeof(pathW));
 850                     status = RtlConvertSidToUnicodeString(KeyPath,
 851                                                           ((TOKEN_USER *)buffer)->User.Sid, FALSE);
 852                     KeyPath->Buffer = buf;
 853                     KeyPath->Length += sizeof(pathW);
 854                     KeyPath->MaximumLength += sizeof(pathW);
 855                 }
 856                 else
 857                     status = STATUS_NO_MEMORY;
 858             }
 859         }
 860         NtClose(token);
 861     }
 862     return status;
 863 }
 864
 865 /******************************************************************************
 866  *  RtlOpenCurrentUser          [NTDLL.@]
 867  *
 868  * NOTES
 869  *  If we return just HKEY_CURRENT_USER the advapi tries to find a remote
 870  *  registry (odd handle) and fails.
 871  */
 872 NTSTATUS WINAPI RtlOpenCurrentUser(
 873         IN ACCESS_MASK DesiredAccess, /* [in] */
 874         OUT PHANDLE KeyHandle)        /* [out] handle of HKEY_CURRENT_USER */
 875 {
 876         OBJECT_ATTRIBUTES ObjectAttributes;
 877         UNICODE_STRING ObjectName;
 878         NTSTATUS ret;
 879
 880         TRACE("(0x%08x, %p)\n",DesiredAccess, KeyHandle);
 881
 882         if ((ret = RtlFormatCurrentUserKeyPath(&ObjectName))) return ret;
 883         InitializeObjectAttributes(&ObjectAttributes,&ObjectName,OBJ_CASE_INSENSITIVE,0, NULL);
 884         ret = NtCreateKey(KeyHandle, DesiredAccess, &ObjectAttributes, 0, NULL, 0, NULL);
 885         RtlFreeUnicodeString(&ObjectName);
 886         return ret;
 887 }
 888
 889
 890 static NTSTATUS RTL_ReportRegistryValue(PKEY_VALUE_FULL_INFORMATION pInfo,
 891                                         PRTL_QUERY_REGISTRY_TABLE pQuery, PVOID pContext, PVOID pEnvironment)
 892 {
 893     PUNICODE_STRING str;
 894     UNICODE_STRING src, dst;
 895     LONG *bin;
 896     ULONG offset;
 897     PWSTR wstr;
 898     DWORD res;
 899     NTSTATUS status = STATUS_SUCCESS;
 900     ULONG len;
 901     LPWSTR String;
 902     INT count = 0;
 903
 904     if (pInfo == NULL)
 905     {
 906         if (pQuery->Flags & RTL_QUERY_REGISTRY_DIRECT)
 907             return STATUS_INVALID_PARAMETER;
 908         else
 909         {
 910             status = pQuery->QueryRoutine(pQuery->Name, pQuery->DefaultType, pQuery->DefaultData,
 911                                           pQuery->DefaultLength, pContext, pQuery->EntryContext);
 912         }
 913         return status;
 914     }
 915     len = pInfo->DataLength;
 916
 917     if (pQuery->Flags & RTL_QUERY_REGISTRY_DIRECT)
 918     {
 919         str = (PUNICODE_STRING)pQuery->EntryContext;
 920
 921         switch(pInfo->Type)
 922         {
 923         case REG_EXPAND_SZ:
 924             if (!(pQuery->Flags & RTL_QUERY_REGISTRY_NOEXPAND))
 925             {
 926                 RtlInitUnicodeString(&src, (WCHAR*)(((CHAR*)pInfo) + pInfo->DataOffset));
 927                 res = 0;
 928                 dst.MaximumLength = 0;
 929                 RtlExpandEnvironmentStrings_U(pEnvironment, &src, &dst, &res);
 930                 dst.Length = 0;
 931                 dst.MaximumLength = res;
 932                 dst.Buffer = RtlAllocateHeap(GetProcessHeap(), 0, res * sizeof(WCHAR));
 933                 RtlExpandEnvironmentStrings_U(pEnvironment, &src, &dst, &res);
 934                 status = pQuery->QueryRoutine(pQuery->Name, pInfo->Type, dst.Buffer,
 935                                      dst.Length, pContext, pQuery->EntryContext);
 936                 RtlFreeHeap(GetProcessHeap(), 0, dst.Buffer);
 937             }
 938
 939         case REG_SZ:
 940         case REG_LINK:
 941             if (str->Buffer == NULL)
 942                 RtlCreateUnicodeString(str, (WCHAR*)(((CHAR*)pInfo) + pInfo->DataOffset));
 943             else
 944                 RtlAppendUnicodeToString(str, (WCHAR*)(((CHAR*)pInfo) + pInfo->DataOffset));
 945             break;
 946
 947         case REG_MULTI_SZ:
 948             if (!(pQuery->Flags & RTL_QUERY_REGISTRY_NOEXPAND))
 949                 return STATUS_INVALID_PARAMETER;
 950
 951             if (str->Buffer == NULL)
 952             {
 953                 str->Buffer = RtlAllocateHeap(GetProcessHeap(), 0, len);
 954                 str->MaximumLength = len;
 955             }
 956             len = min(len, str->MaximumLength);
 957             memcpy(str->Buffer, ((CHAR*)pInfo) + pInfo->DataOffset, len);
 958             str->Length = len;
 959             break;
 960
 961         default:
 962             bin = (LONG*)pQuery->EntryContext;
 963             if (pInfo->DataLength <= sizeof(ULONG))
 964                 memcpy(bin, ((CHAR*)pInfo) + pInfo->DataOffset,
 965                     pInfo->DataLength);
 966             else
 967             {
 968                 if (bin[0] <= sizeof(ULONG))
 969                 {
 970                     memcpy(&bin[1], ((CHAR*)pInfo) + pInfo->DataOffset,
 971                     min(-bin[0], pInfo->DataLength));
 972                 }
 973                 else
 974                 {
 975                    len = min(bin[0], pInfo->DataLength);
 976                     bin[1] = len;
 977                     bin[2] = pInfo->Type;
 978                     memcpy(&bin[3], ((CHAR*)pInfo) + pInfo->DataOffset, len);
 979                 }
 980            }
 981            break;
 982         }
 983     }
 984     else
 985     {
 986         if((pQuery->Flags & RTL_QUERY_REGISTRY_NOEXPAND) ||
 987            (pInfo->Type != REG_EXPAND_SZ && pInfo->Type != REG_MULTI_SZ))
 988         {
 989             status = pQuery->QueryRoutine(pInfo->Name, pInfo->Type,
 990                 ((CHAR*)pInfo) + pInfo->DataOffset, pInfo->DataLength,
 991                 pContext, pQuery->EntryContext);
 992         }
 993         else if (pInfo->Type == REG_EXPAND_SZ)
 994         {
 995             RtlInitUnicodeString(&src, (WCHAR*)(((CHAR*)pInfo) + pInfo->DataOffset));
 996             res = 0;
 997             dst.MaximumLength = 0;
 998             RtlExpandEnvironmentStrings_U(pEnvironment, &src, &dst, &res);
 999             dst.Length = 0;
1000             dst.MaximumLength = res;
1001             dst.Buffer = RtlAllocateHeap(GetProcessHeap(), 0, res * sizeof(WCHAR));
1002             RtlExpandEnvironmentStrings_U(pEnvironment, &src, &dst, &res);
1003             status = pQuery->QueryRoutine(pQuery->Name, pInfo->Type, dst.Buffer,
1004                                           dst.Length, pContext, pQuery->EntryContext);
1005             RtlFreeHeap(GetProcessHeap(), 0, dst.Buffer);
1006         }
1007         else /* REG_MULTI_SZ */
1008         {
1009             if(pQuery->Flags & RTL_QUERY_REGISTRY_NOEXPAND)
1010             {
1011                 for (offset = 0; offset <= pInfo->DataLength; offset += len + sizeof(WCHAR))
1012                     {
1013                     wstr = (WCHAR*)(((CHAR*)pInfo) + offset);
1014                     len = strlenW(wstr) * sizeof(WCHAR);
1015                     status = pQuery->QueryRoutine(pQuery->Name, pInfo->Type, wstr, len,
1016                         pContext, pQuery->EntryContext);
1017                     if(status != STATUS_SUCCESS && status != STATUS_BUFFER_TOO_SMALL)
1018                         return status;
1019                     }
1020             }
1021             else
1022             {
1023                 while(count<=pInfo->DataLength)
1024                 {
1025                     String = (WCHAR*)(((CHAR*)pInfo) + pInfo->DataOffset)+count;
1026                     count+=strlenW(String)+1;
1027                     RtlInitUnicodeString(&src, (WCHAR*)(((CHAR*)pInfo) + pInfo->DataOffset));
1028                     res = 0;
1029                     dst.MaximumLength = 0;
1030                     RtlExpandEnvironmentStrings_U(pEnvironment, &src, &dst, &res);
1031                     dst.Length = 0;
1032                     dst.MaximumLength = res;
1033                     dst.Buffer = RtlAllocateHeap(GetProcessHeap(), 0, res * sizeof(WCHAR));
1034                     RtlExpandEnvironmentStrings_U(pEnvironment, &src, &dst, &res);
1035                     status = pQuery->QueryRoutine(pQuery->Name, pInfo->Type, dst.Buffer,
1036                                                   dst.Length, pContext, pQuery->EntryContext);
1037                     RtlFreeHeap(GetProcessHeap(), 0, dst.Buffer);
1038                     if(status != STATUS_SUCCESS && status != STATUS_BUFFER_TOO_SMALL)
1039                         return status;
1040                 }
1041             }
1042         }
1043     }
1044     return status;
1045 }
1046
1047
1048 static NTSTATUS RTL_GetKeyHandle(ULONG RelativeTo, PCWSTR Path, PHANDLE handle)
1049 {
1050     UNICODE_STRING KeyString;
1051     OBJECT_ATTRIBUTES regkey;
1052     PCWSTR base;
1053     INT len;
1054     NTSTATUS status;
1055
1056     static const WCHAR empty[] = {0};
1057     static const WCHAR control[] = {'\\','R','e','g','i','s','t','r','y','\\','M','a','c','h','i','n','e',
1058     '\\','S','y','s','t','e','m','\\','C','u','r','r','e','n','t','C','o','n','t','r','o','l','S','e','t','\\',
1059     'C','o','n','t','r','o','l','\\',0};
1060
1061     static const WCHAR devicemap[] = {'\\','R','e','g','i','s','t','r','y','\\','M','a','c','h','i','n','e','\\',
1062     'H','a','r','d','w','a','r','e','\\','D','e','v','i','c','e','M','a','p','\\',0};
1063
1064     static const WCHAR services[] = {'\\','R','e','g','i','s','t','r','y','\\','M','a','c','h','i','n','e','\\',
1065     'S','y','s','t','e','m','\\','C','u','r','r','e','n','t','C','o','n','t','r','o','l','S','e','t','\\',
1066     'S','e','r','v','i','c','e','s','\\',0};
1067
1068     static const WCHAR user[] = {'\\','R','e','g','i','s','t','r','y','\\','U','s','e','r','\\',
1069     'C','u','r','r','e','n','t','U','s','e','r','\\',0};
1070
1071     static const WCHAR windows_nt[] = {'\\','R','e','g','i','s','t','r','y','\\','M','a','c','h','i','n','e','\\',
1072     'S','o','f','t','w','a','r','e','\\','M','i','c','r','o','s','o','f','t','\\',
1073     'W','i','n','d','o','w','s',' ','N','T','\\','C','u','r','r','e','n','t','V','e','r','s','i','o','n','\\',0};
1074
1075     switch (RelativeTo & 0xff)
1076     {
1077     case RTL_REGISTRY_ABSOLUTE:
1078         base = empty;
1079         break;
1080
1081     case RTL_REGISTRY_CONTROL:
1082         base = control;
1083         break;
1084
1085     case RTL_REGISTRY_DEVICEMAP:
1086         base = devicemap;
1087         break;
1088
1089     case RTL_REGISTRY_SERVICES:
1090         base = services;
1091         break;
1092
1093     case RTL_REGISTRY_USER:
1094         base = user;
1095         break;
1096
1097     case RTL_REGISTRY_WINDOWS_NT:
1098         base = windows_nt;
1099         break;
1100
1101     default:
1102         return STATUS_INVALID_PARAMETER;
1103     }
1104
1105     len = (strlenW(base) + strlenW(Path) + 1) * sizeof(WCHAR);
1106     KeyString.Buffer = RtlAllocateHeap(GetProcessHeap(), 0, len);
1107     if (KeyString.Buffer == NULL)
1108         return STATUS_NO_MEMORY;
1109
1110     strcpyW(KeyString.Buffer, base);
1111     strcatW(KeyString.Buffer, Path);
1112     KeyString.Length = len - sizeof(WCHAR);
1113     KeyString.MaximumLength = len;
1114     InitializeObjectAttributes(&regkey, &KeyString, OBJ_CASE_INSENSITIVE, NULL, NULL);
1115     status = NtOpenKey(handle, KEY_ALL_ACCESS, &regkey);
1116     RtlFreeHeap(GetProcessHeap(), 0, KeyString.Buffer);
1117     return status;
1118 }
1119
1120 /*************************************************************************
1121  * RtlQueryRegistryValues   [NTDLL.@]
1122  *
1123  * Query multiple registry values with a signle call.
1124  *
1125  * PARAMS
1126  *  RelativeTo  [I] Registry path that Path refers to
1127  *  Path        [I] Path to key
1128  *  QueryTable  [I] Table of key values to query
1129  *  Context     [I] Parameter to pass to the application defined QueryRoutine function
1130  *  Environment [I] Optional parameter to use when performing expansion
1131  *
1132  * RETURNS
1133  *  STATUS_SUCCESS or an appropriate NTSTATUS error code.
1134  */
1135 NTSTATUS WINAPI RtlQueryRegistryValues(IN ULONG RelativeTo, IN PCWSTR Path,
1136                                        IN PRTL_QUERY_REGISTRY_TABLE QueryTable, IN PVOID Context,
1137                                        IN PVOID Environment OPTIONAL)
1138 {
1139     UNICODE_STRING Value;
1140     HANDLE handle, topkey;
1141     PKEY_VALUE_FULL_INFORMATION pInfo = NULL;
1142     ULONG len, buflen = 0;
1143     NTSTATUS status=STATUS_SUCCESS, ret = STATUS_SUCCESS;
1144     INT i;
1145
1146     TRACE("(%d, %s, %p, %p, %p)\n", RelativeTo, debugstr_w(Path), QueryTable, Context, Environment);
1147
1148     if(Path == NULL)
1149         return STATUS_INVALID_PARAMETER;
1150
1151     /* get a valid handle */
1152     if (RelativeTo & RTL_REGISTRY_HANDLE)
1153         topkey = handle = (HANDLE)Path;
1154     else
1155     {
1156         status = RTL_GetKeyHandle(RelativeTo, Path, &topkey);
1157         handle = topkey;
1158     }
1159     if(status != STATUS_SUCCESS)
1160         return status;
1161
1162     /* Process query table entries */
1163     for (; QueryTable->QueryRoutine != NULL || QueryTable->Name != NULL; ++QueryTable)
1164     {
1165         if (QueryTable->Flags &
1166             (RTL_QUERY_REGISTRY_SUBKEY | RTL_QUERY_REGISTRY_TOPKEY))
1167         {
1168             /* topkey must be kept open just in case we will reuse it later */
1169             if (handle != topkey)
1170                 NtClose(handle);
1171
1172             if (QueryTable->Flags & RTL_QUERY_REGISTRY_SUBKEY)
1173             {
1174                 handle = 0;
1175                 status = RTL_GetKeyHandle(PtrToUlong(QueryTable->Name), Path, &handle);
1176                 if(status != STATUS_SUCCESS)
1177                 {
1178                     ret = status;
1179                     goto out;
1180                 }
1181             }
1182             else
1183                 handle = topkey;
1184         }
1185
1186         if (QueryTable->Flags & RTL_QUERY_REGISTRY_NOVALUE)
1187         {
1188             QueryTable->QueryRoutine(QueryTable->Name, REG_NONE, NULL, 0,
1189                 Context, QueryTable->EntryContext);
1190             continue;
1191         }
1192
1193         if (!handle)
1194         {
1195             if (QueryTable->Flags & RTL_QUERY_REGISTRY_REQUIRED)
1196             {
1197                 ret = STATUS_OBJECT_NAME_NOT_FOUND;
1198                 goto out;
1199             }
1200             continue;
1201         }
1202
1203         if (QueryTable->Name == NULL)
1204         {
1205             if (QueryTable->Flags & RTL_QUERY_REGISTRY_DIRECT)
1206             {
1207                 ret = STATUS_INVALID_PARAMETER;
1208                 goto out;
1209             }
1210
1211             /* Report all subkeys */
1212             for (i = 0;; ++i)
1213             {
1214                 status = NtEnumerateValueKey(handle, i,
1215                     KeyValueFullInformation, pInfo, buflen, &len);
1216                 if (status == STATUS_NO_MORE_ENTRIES)
1217                     break;
1218                 if (status == STATUS_BUFFER_OVERFLOW ||
1219                     status == STATUS_BUFFER_TOO_SMALL)
1220                 {
1221                     buflen = len;
1222                     RtlFreeHeap(GetProcessHeap(), 0, pInfo);
1223                     pInfo = (KEY_VALUE_FULL_INFORMATION*)RtlAllocateHeap(
1224                         GetProcessHeap(), 0, buflen);
1225                     NtEnumerateValueKey(handle, i, KeyValueFullInformation,
1226                         pInfo, buflen, &len);
1227                 }
1228
1229                 status = RTL_ReportRegistryValue(pInfo, QueryTable, Context, Environment);
1230                 if(status != STATUS_SUCCESS && status != STATUS_BUFFER_TOO_SMALL)
1231                 {
1232                     ret = status;
1233                     goto out;
1234                 }
1235                 if (QueryTable->Flags & RTL_QUERY_REGISTRY_DELETE)
1236                 {
1237                     RtlInitUnicodeString(&Value, pInfo->Name);
1238                     NtDeleteValueKey(handle, &Value);
1239                 }
1240             }
1241
1242             if (i == 0  && (QueryTable->Flags & RTL_QUERY_REGISTRY_REQUIRED))
1243             {
1244                 ret = STATUS_OBJECT_NAME_NOT_FOUND;
1245                 goto out;
1246             }
1247         }
1248         else
1249         {
1250             RtlInitUnicodeString(&Value, QueryTable->Name);
1251             status = NtQueryValueKey(handle, &Value, KeyValueFullInformation,
1252                 pInfo, buflen, &len);
1253             if (status == STATUS_BUFFER_OVERFLOW ||
1254                 status == STATUS_BUFFER_TOO_SMALL)
1255             {
1256                 buflen = len;
1257                 RtlFreeHeap(GetProcessHeap(), 0, pInfo);
1258                 pInfo = (KEY_VALUE_FULL_INFORMATION*)RtlAllocateHeap(
1259                     GetProcessHeap(), 0, buflen);
1260                 status = NtQueryValueKey(handle, &Value,
1261                     KeyValueFullInformation, pInfo, buflen, &len);
1262             }
1263             if (status != STATUS_SUCCESS)
1264             {
1265                 if (QueryTable->Flags & RTL_QUERY_REGISTRY_REQUIRED)
1266                 {
1267                     ret = STATUS_OBJECT_NAME_NOT_FOUND;
1268                     goto out;
1269                 }
1270                 status = RTL_ReportRegistryValue(NULL, QueryTable, Context, Environment);
1271                 if(status != STATUS_SUCCESS && status != STATUS_BUFFER_TOO_SMALL)
1272                 {
1273                     ret = status;
1274                     goto out;
1275                 }
1276             }
1277             else
1278             {
1279                 status = RTL_ReportRegistryValue(pInfo, QueryTable, Context, Environment);
1280                 if(status != STATUS_SUCCESS && status != STATUS_BUFFER_TOO_SMALL)
1281                 {
1282                     ret = status;
1283                     goto out;
1284                 }
1285                 if (QueryTable->Flags & RTL_QUERY_REGISTRY_DELETE)
1286                     NtDeleteValueKey(handle, &Value);
1287             }
1288         }
1289     }
1290
1291 out:
1292     RtlFreeHeap(GetProcessHeap(), 0, pInfo);
1293     if (handle != topkey)
1294         NtClose(handle);
1295     NtClose(topkey);
1296     return ret;
1297 }
1298
1299 /*************************************************************************
1300  * RtlCheckRegistryKey   [NTDLL.@]
1301  *
1302  * Query multiple registry values with a signle call.
1303  *
1304  * PARAMS
1305  *  RelativeTo [I] Registry path that Path refers to
1306  *  Path       [I] Path to key
1307  *
1308  * RETURNS
1309  *  STATUS_SUCCESS if the specified key exists, or an NTSTATUS error code.
1310  */
1311 NTSTATUS WINAPI RtlCheckRegistryKey(IN ULONG RelativeTo, IN PWSTR Path)
1312 {
1313     HANDLE handle;
1314     NTSTATUS status;
1315
1316     TRACE("(%d, %s)\n", RelativeTo, debugstr_w(Path));
1317
1318     if((!RelativeTo) && Path == NULL)
1319         return STATUS_OBJECT_PATH_SYNTAX_BAD;
1320     if(RelativeTo & RTL_REGISTRY_HANDLE)
1321         return STATUS_SUCCESS;
1322
1323     status = RTL_GetKeyHandle(RelativeTo, Path, &handle);
1324     if (handle) NtClose(handle);
1325     if (status == STATUS_INVALID_HANDLE) status = STATUS_OBJECT_NAME_NOT_FOUND;
1326     return status;
1327 }
1328
1329 /*************************************************************************
1330  * RtlDeleteRegistryValue   [NTDLL.@]
1331  *
1332  * Query multiple registry values with a signle call.
1333  *
1334  * PARAMS
1335  *  RelativeTo [I] Registry path that Path refers to
1336  *  Path       [I] Path to key
1337  *  ValueName  [I] Name of the value to delete
1338  *
1339  * RETURNS
1340  *  STATUS_SUCCESS if the specified key is successfully deleted, or an NTSTATUS error code.
1341  */
1342 NTSTATUS WINAPI RtlDeleteRegistryValue(IN ULONG RelativeTo, IN PCWSTR Path, IN PCWSTR ValueName)
1343 {
1344     NTSTATUS status;
1345     HANDLE handle;
1346     UNICODE_STRING Value;
1347
1348     TRACE("(%d, %s, %s)\n", RelativeTo, debugstr_w(Path), debugstr_w(ValueName));
1349
1350     RtlInitUnicodeString(&Value, ValueName);
1351     if(RelativeTo == RTL_REGISTRY_HANDLE)
1352     {
1353         return NtDeleteValueKey((HANDLE)Path, &Value);
1354     }
1355     status = RTL_GetKeyHandle(RelativeTo, Path, &handle);
1356     if (status) return status;
1357     status = NtDeleteValueKey(handle, &Value);
1358     NtClose(handle);
1359     return status;
1360 }
1361
1362 /*************************************************************************
1363  * RtlWriteRegistryValue   [NTDLL.@]
1364  *
1365  * Sets the registry value with provided data.
1366  *
1367  * PARAMS
1368  *  RelativeTo [I] Registry path that path parameter refers to
1369  *  path       [I] Path to the key (or handle - see RTL_GetKeyHandle)
1370  *  name       [I] Name of the registry value to set
1371  *  type       [I] Type of the registry key to set
1372  *  data       [I] Pointer to the user data to be set
1373  *  length     [I] Length of the user data pointed by data
1374  *
1375  * RETURNS
1376  *  STATUS_SUCCESS if the specified key is successfully set,
1377  *  or an NTSTATUS error code.
1378  */
1379 NTSTATUS WINAPI RtlWriteRegistryValue( ULONG RelativeTo, PCWSTR path, PCWSTR name,
1380                                        ULONG type, PVOID data, ULONG length )
1381 {
1382     HANDLE hkey;
1383     NTSTATUS status;
1384     UNICODE_STRING str;
1385
1386     TRACE( "(%d, %s, %s) -> %d: %p [%d]\n", RelativeTo, debugstr_w(path), debugstr_w(name),
1387            type, data, length );
1388
1389     RtlInitUnicodeString( &str, name );
1390
1391     if (RelativeTo == RTL_REGISTRY_HANDLE)
1392         return NtSetValueKey( (HANDLE)path, &str, 0, type, data, length );
1393
1394     status = RTL_GetKeyHandle( RelativeTo, path, &hkey );
1395     if (status != STATUS_SUCCESS) return status;
1396
1397     status = NtSetValueKey( hkey, &str, 0, type, data, length );
1398     NtClose( hkey );
1399
1400     return status;
1401 }