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 name in bytes (without terminating null) */
  46 #define MAX_NAME_LENGTH  (255 * sizeof(WCHAR))
  47 /* maximum length of a value name in bytes (without terminating null) */
  48 #define MAX_VALUE_LENGTH (16383 * sizeof(WCHAR))
  49
  50 /******************************************************************************
  51  * NtCreateKey [NTDLL.@]
  52  * ZwCreateKey [NTDLL.@]
  53  */
  54 NTSTATUS WINAPI NtCreateKey( PHANDLE retkey, ACCESS_MASK access, const OBJECT_ATTRIBUTES *attr,
  55                              ULONG TitleIndex, const UNICODE_STRING *class, ULONG options,
  56                              PULONG dispos )
  57 {
  58     NTSTATUS ret;
  59
  60     if (!retkey || !attr) return STATUS_ACCESS_VIOLATION;
  61     if (attr->Length > sizeof(OBJECT_ATTRIBUTES)) return STATUS_INVALID_PARAMETER;
  62     if (attr->ObjectName->Length > MAX_NAME_LENGTH) return STATUS_BUFFER_OVERFLOW;
  63
  64     TRACE( "(%p,%s,%s,%x,%x,%p)\n", attr->RootDirectory, debugstr_us(attr->ObjectName),
  65            debugstr_us(class), options, access, retkey );
  66
  67     SERVER_START_REQ( create_key )
  68     {
  69         req->parent     = wine_server_obj_handle( attr->RootDirectory );
  70         req->access     = access;
  71         req->attributes = attr->Attributes;
  72         req->options    = options;
  73         req->namelen    = attr->ObjectName->Length;
  74         wine_server_add_data( req, attr->ObjectName->Buffer, attr->ObjectName->Length );
  75         if (class) wine_server_add_data( req, class->Buffer, class->Length );
  76         if (!(ret = wine_server_call( req )))
  77         {
  78             *retkey = wine_server_ptr_handle( reply->hkey );
  79             if (dispos) *dispos = reply->created ? REG_CREATED_NEW_KEY : REG_OPENED_EXISTING_KEY;
  80         }
  81     }
  82     SERVER_END_REQ;
  83     TRACE("<- %p\n", *retkey);
  84     return ret;
  85 }
  86
  87 /******************************************************************************
  88  *  RtlpNtCreateKey [NTDLL.@]
  89  *
  90  *  See NtCreateKey.
  91  */
  92 NTSTATUS WINAPI RtlpNtCreateKey( PHANDLE retkey, ACCESS_MASK access, const OBJECT_ATTRIBUTES *attr,
  93                                  ULONG TitleIndex, const UNICODE_STRING *class, ULONG options,
  94                                  PULONG dispos )
  95 {
  96     OBJECT_ATTRIBUTES oa;
  97
  98     if (attr)
  99     {
 100         oa = *attr;
 101         oa.Attributes &= ~(OBJ_PERMANENT|OBJ_EXCLUSIVE);
 102         attr = &oa;
 103     }
 104
 105     return NtCreateKey(retkey, access, attr, 0, NULL, 0, dispos);
 106 }
 107
 108 /******************************************************************************
 109  * NtOpenKey [NTDLL.@]
 110  * ZwOpenKey [NTDLL.@]
 111  *
 112  *   OUT        HANDLE                  retkey (returns 0 when failure)
 113  *   IN         ACCESS_MASK             access
 114  *   IN         POBJECT_ATTRIBUTES      attr
 115  */
 116 NTSTATUS WINAPI NtOpenKey( PHANDLE retkey, ACCESS_MASK access, const OBJECT_ATTRIBUTES *attr )
 117 {
 118     NTSTATUS ret;
 119     DWORD len;
 120
 121     if (!retkey || !attr) return STATUS_ACCESS_VIOLATION;
 122     if (attr->Length > sizeof(OBJECT_ATTRIBUTES)) return STATUS_INVALID_PARAMETER;
 123     len = attr->ObjectName->Length;
 124     TRACE( "(%p,%s,%x,%p)\n", attr->RootDirectory,
 125            debugstr_us(attr->ObjectName), access, retkey );
 126
 127     if (len > MAX_NAME_LENGTH) return STATUS_BUFFER_OVERFLOW;
 128
 129     SERVER_START_REQ( open_key )
 130     {
 131         req->parent     = wine_server_obj_handle( attr->RootDirectory );
 132         req->access     = access;
 133         req->attributes = attr->Attributes;
 134         wine_server_add_data( req, attr->ObjectName->Buffer, len );
 135         ret = wine_server_call( req );
 136         *retkey = wine_server_ptr_handle( reply->hkey );
 137     }
 138     SERVER_END_REQ;
 139     TRACE("<- %p\n", *retkey);
 140     return ret;
 141 }
 142
 143 /******************************************************************************
 144  * RtlpNtOpenKey [NTDLL.@]
 145  *
 146  * See NtOpenKey.
 147  */
 148 NTSTATUS WINAPI RtlpNtOpenKey( PHANDLE retkey, ACCESS_MASK access, OBJECT_ATTRIBUTES *attr )
 149 {
 150     if (attr)
 151         attr->Attributes &= ~(OBJ_PERMANENT|OBJ_EXCLUSIVE);
 152     return NtOpenKey(retkey, access, attr);
 153 }
 154
 155 /******************************************************************************
 156  * NtDeleteKey [NTDLL.@]
 157  * ZwDeleteKey [NTDLL.@]
 158  */
 159 NTSTATUS WINAPI NtDeleteKey( HANDLE hkey )
 160 {
 161     NTSTATUS ret;
 162
 163     TRACE( "(%p)\n", hkey );
 164
 165     SERVER_START_REQ( delete_key )
 166     {
 167         req->hkey = wine_server_obj_handle( hkey );
 168         ret = wine_server_call( req );
 169     }
 170     SERVER_END_REQ;
 171     return ret;
 172 }
 173
 174 /******************************************************************************
 175  * RtlpNtMakeTemporaryKey [NTDLL.@]
 176  *
 177  *  See NtDeleteKey.
 178  */
 179 NTSTATUS WINAPI RtlpNtMakeTemporaryKey( HANDLE hkey )
 180 {
 181     return NtDeleteKey(hkey);
 182 }
 183
 184 /******************************************************************************
 185  * NtDeleteValueKey [NTDLL.@]
 186  * ZwDeleteValueKey [NTDLL.@]
 187  */
 188 NTSTATUS WINAPI NtDeleteValueKey( HANDLE hkey, const UNICODE_STRING *name )
 189 {
 190     NTSTATUS ret;
 191
 192     TRACE( "(%p,%s)\n", hkey, debugstr_us(name) );
 193     if (name->Length > MAX_VALUE_LENGTH) return STATUS_BUFFER_OVERFLOW;
 194
 195     SERVER_START_REQ( delete_key_value )
 196     {
 197         req->hkey = wine_server_obj_handle( hkey );
 198         wine_server_add_data( req, name->Buffer, name->Length );
 199         ret = wine_server_call( req );
 200     }
 201     SERVER_END_REQ;
 202     return ret;
 203 }
 204
 205
 206 /******************************************************************************
 207  *     enumerate_key
 208  *
 209  * Implementation of NtQueryKey and NtEnumerateKey
 210  */
 211 static NTSTATUS enumerate_key( HANDLE handle, int index, KEY_INFORMATION_CLASS info_class,
 212                                void *info, DWORD length, DWORD *result_len )
 213
 214 {
 215     NTSTATUS ret;
 216     void *data_ptr;
 217     size_t fixed_size;
 218
 219     switch(info_class)
 220     {
 221     case KeyBasicInformation: data_ptr = ((KEY_BASIC_INFORMATION *)info)->Name; break;
 222     case KeyFullInformation:  data_ptr = ((KEY_FULL_INFORMATION *)info)->Class; break;
 223     case KeyNodeInformation:  data_ptr = ((KEY_NODE_INFORMATION *)info)->Name;  break;
 224     case KeyNameInformation:  data_ptr = ((KEY_NAME_INFORMATION *)info)->Name;  break;
 225     default:
 226         FIXME( "Information class %d not implemented\n", info_class );
 227         return STATUS_INVALID_PARAMETER;
 228     }
 229     fixed_size = (char *)data_ptr - (char *)info;
 230
 231     SERVER_START_REQ( enum_key )
 232     {
 233         req->hkey       = wine_server_obj_handle( handle );
 234         req->index      = index;
 235         req->info_class = info_class;
 236         if (length > fixed_size) wine_server_set_reply( req, data_ptr, length - fixed_size );
 237         if (!(ret = wine_server_call( req )))
 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.QuadPart = reply->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.QuadPart = reply->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.QuadPart = reply->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             case KeyNameInformation:
 289                 {
 290                     KEY_NAME_INFORMATION keyinfo;
 291                     fixed_size = (char *)keyinfo.Name - (char *)&keyinfo;
 292                     keyinfo.NameLength = reply->namelen;
 293                     memcpy( info, &keyinfo, min( length, fixed_size ) );
 294                 }
 295                 break;
 296             }
 297             *result_len = fixed_size + reply->total;
 298             if (length < *result_len) ret = STATUS_BUFFER_OVERFLOW;
 299         }
 300     }
 301     SERVER_END_REQ;
 302     return ret;
 303 }
 304
 305
 306
 307 /******************************************************************************
 308  * NtEnumerateKey [NTDLL.@]
 309  * ZwEnumerateKey [NTDLL.@]
 310  *
 311  * NOTES
 312  *  the name copied into the buffer is NOT 0-terminated
 313  */
 314 NTSTATUS WINAPI NtEnumerateKey( HANDLE handle, ULONG index, KEY_INFORMATION_CLASS info_class,
 315                                 void *info, DWORD length, DWORD *result_len )
 316 {
 317     /* -1 means query key, so avoid it here */
 318     if (index == (ULONG)-1) return STATUS_NO_MORE_ENTRIES;
 319     return enumerate_key( handle, index, info_class, info, length, result_len );
 320 }
 321
 322
 323 /******************************************************************************
 324  * RtlpNtEnumerateSubKey [NTDLL.@]
 325  *
 326  */
 327 NTSTATUS WINAPI RtlpNtEnumerateSubKey( HANDLE handle, UNICODE_STRING *out, ULONG index )
 328 {
 329   KEY_BASIC_INFORMATION *info;
 330   DWORD dwLen, dwResultLen;
 331   NTSTATUS ret;
 332
 333   if (out->Length)
 334   {
 335     dwLen = out->Length + sizeof(KEY_BASIC_INFORMATION);
 336     info = RtlAllocateHeap( GetProcessHeap(), 0, dwLen );
 337     if (!info)
 338       return STATUS_NO_MEMORY;
 339   }
 340   else
 341   {
 342     dwLen = 0;
 343     info = NULL;
 344   }
 345
 346   ret = NtEnumerateKey( handle, index, KeyBasicInformation, info, dwLen, &dwResultLen );
 347   dwResultLen -= sizeof(KEY_BASIC_INFORMATION);
 348
 349   if (ret == STATUS_BUFFER_OVERFLOW)
 350     out->Length = dwResultLen;
 351   else if (!ret)
 352   {
 353     if (out->Length < info->NameLength)
 354     {
 355       out->Length = dwResultLen;
 356       ret = STATUS_BUFFER_OVERFLOW;
 357     }
 358     else
 359     {
 360       out->Length = info->NameLength;
 361       memcpy(out->Buffer, info->Name, info->NameLength);
 362     }
 363   }
 364
 365   RtlFreeHeap( GetProcessHeap(), 0, info );
 366   return ret;
 367 }
 368
 369 /******************************************************************************
 370  * NtQueryKey [NTDLL.@]
 371  * ZwQueryKey [NTDLL.@]
 372  */
 373 NTSTATUS WINAPI NtQueryKey( HANDLE handle, KEY_INFORMATION_CLASS info_class,
 374                             void *info, DWORD length, DWORD *result_len )
 375 {
 376     return enumerate_key( handle, -1, info_class, info, length, result_len );
 377 }
 378
 379
 380 /* fill the key value info structure for a specific info class */
 381 static void copy_key_value_info( KEY_VALUE_INFORMATION_CLASS info_class, void *info,
 382                                  DWORD length, int type, int name_len, int data_len )
 383 {
 384     switch(info_class)
 385     {
 386     case KeyValueBasicInformation:
 387         {
 388             KEY_VALUE_BASIC_INFORMATION keyinfo;
 389             keyinfo.TitleIndex = 0;
 390             keyinfo.Type       = type;
 391             keyinfo.NameLength = name_len;
 392             length = min( length, (char *)keyinfo.Name - (char *)&keyinfo );
 393             memcpy( info, &keyinfo, length );
 394             break;
 395         }
 396     case KeyValueFullInformation:
 397         {
 398             KEY_VALUE_FULL_INFORMATION keyinfo;
 399             keyinfo.TitleIndex = 0;
 400             keyinfo.Type       = type;
 401             keyinfo.DataOffset = (char *)keyinfo.Name - (char *)&keyinfo + name_len;
 402             keyinfo.DataLength = data_len;
 403             keyinfo.NameLength = name_len;
 404             length = min( length, (char *)keyinfo.Name - (char *)&keyinfo );
 405             memcpy( info, &keyinfo, length );
 406             break;
 407         }
 408     case KeyValuePartialInformation:
 409         {
 410             KEY_VALUE_PARTIAL_INFORMATION keyinfo;
 411             keyinfo.TitleIndex = 0;
 412             keyinfo.Type       = type;
 413             keyinfo.DataLength = data_len;
 414             length = min( length, (char *)keyinfo.Data - (char *)&keyinfo );
 415             memcpy( info, &keyinfo, length );
 416             break;
 417         }
 418     default:
 419         break;
 420     }
 421 }
 422
 423
 424 /******************************************************************************
 425  *  NtEnumerateValueKey [NTDLL.@]
 426  *  ZwEnumerateValueKey [NTDLL.@]
 427  */
 428 NTSTATUS WINAPI NtEnumerateValueKey( HANDLE handle, ULONG index,
 429                                      KEY_VALUE_INFORMATION_CLASS info_class,
 430                                      void *info, DWORD length, DWORD *result_len )
 431 {
 432     NTSTATUS ret;
 433     void *ptr;
 434     size_t fixed_size;
 435
 436     TRACE( "(%p,%u,%d,%p,%d)\n", handle, index, info_class, info, length );
 437
 438     /* compute the length we want to retrieve */
 439     switch(info_class)
 440     {
 441     case KeyValueBasicInformation:   ptr = ((KEY_VALUE_BASIC_INFORMATION *)info)->Name; break;
 442     case KeyValueFullInformation:    ptr = ((KEY_VALUE_FULL_INFORMATION *)info)->Name; break;
 443     case KeyValuePartialInformation: ptr = ((KEY_VALUE_PARTIAL_INFORMATION *)info)->Data; break;
 444     default:
 445         FIXME( "Information class %d not implemented\n", info_class );
 446         return STATUS_INVALID_PARAMETER;
 447     }
 448     fixed_size = (char *)ptr - (char *)info;
 449
 450     SERVER_START_REQ( enum_key_value )
 451     {
 452         req->hkey       = wine_server_obj_handle( handle );
 453         req->index      = index;
 454         req->info_class = info_class;
 455         if (length > fixed_size) wine_server_set_reply( req, ptr, length - fixed_size );
 456         if (!(ret = wine_server_call( req )))
 457         {
 458             copy_key_value_info( info_class, info, length, reply->type, reply->namelen,
 459                                  wine_server_reply_size(reply) - reply->namelen );
 460             *result_len = fixed_size + reply->total;
 461             if (length < *result_len) ret = STATUS_BUFFER_OVERFLOW;
 462         }
 463     }
 464     SERVER_END_REQ;
 465     return ret;
 466 }
 467
 468
 469 /******************************************************************************
 470  * NtQueryValueKey [NTDLL.@]
 471  * ZwQueryValueKey [NTDLL.@]
 472  *
 473  * NOTES
 474  *  the name in the KeyValueInformation is never set
 475  */
 476 NTSTATUS WINAPI NtQueryValueKey( HANDLE handle, const UNICODE_STRING *name,
 477                                  KEY_VALUE_INFORMATION_CLASS info_class,
 478                                  void *info, DWORD length, DWORD *result_len )
 479 {
 480     NTSTATUS ret;
 481     UCHAR *data_ptr;
 482     unsigned int fixed_size = 0, min_size = 0;
 483
 484     TRACE( "(%p,%s,%d,%p,%d)\n", handle, debugstr_us(name), info_class, info, length );
 485
 486     if (name->Length > MAX_VALUE_LENGTH) return STATUS_BUFFER_OVERFLOW;
 487
 488     /* compute the length we want to retrieve */
 489     switch(info_class)
 490     {
 491     case KeyValueBasicInformation:
 492     {
 493         KEY_VALUE_BASIC_INFORMATION *basic_info = info;
 494         min_size = FIELD_OFFSET(KEY_VALUE_BASIC_INFORMATION, Name);
 495         fixed_size = min_size + name->Length;
 496         if (min_size < length)
 497             memcpy(basic_info->Name, name->Buffer, min(length - min_size, name->Length));
 498         data_ptr = NULL;
 499         break;
 500     }
 501     case KeyValueFullInformation:
 502     {
 503         KEY_VALUE_FULL_INFORMATION *full_info = info;
 504         min_size = FIELD_OFFSET(KEY_VALUE_FULL_INFORMATION, Name);
 505         fixed_size = min_size + name->Length;
 506         if (min_size < length)
 507             memcpy(full_info->Name, name->Buffer, min(length - min_size, name->Length));
 508         data_ptr = (UCHAR *)full_info->Name + name->Length;
 509         break;
 510     }
 511     case KeyValuePartialInformation:
 512         min_size = fixed_size = FIELD_OFFSET(KEY_VALUE_PARTIAL_INFORMATION, Data);
 513         data_ptr = ((KEY_VALUE_PARTIAL_INFORMATION *)info)->Data;
 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 < min_size) ret = STATUS_BUFFER_TOO_SMALL;
 531             else if (length < *result_len) ret = STATUS_BUFFER_OVERFLOW;
 532         }
 533     }
 534     SERVER_END_REQ;
 535     return ret;
 536 }
 537
 538 /******************************************************************************
 539  * RtlpNtQueryValueKey [NTDLL.@]
 540  *
 541  */
 542 NTSTATUS WINAPI RtlpNtQueryValueKey( HANDLE handle, ULONG *result_type, PBYTE dest,
 543                                      DWORD *result_len, void *unknown )
 544 {
 545     KEY_VALUE_PARTIAL_INFORMATION *info;
 546     UNICODE_STRING name;
 547     NTSTATUS ret;
 548     DWORD dwResultLen;
 549     DWORD dwLen = sizeof (KEY_VALUE_PARTIAL_INFORMATION) + (result_len ? *result_len : 0);
 550
 551     info = RtlAllocateHeap( GetProcessHeap(), 0, dwLen );
 552     if (!info)
 553       return STATUS_NO_MEMORY;
 554
 555     name.Length = 0;
 556     ret = NtQueryValueKey( handle, &name, KeyValuePartialInformation, info, dwLen, &dwResultLen );
 557
 558     if (!ret || ret == STATUS_BUFFER_OVERFLOW)
 559     {
 560         if (result_len)
 561             *result_len = info->DataLength;
 562
 563         if (result_type)
 564             *result_type = info->Type;
 565
 566         if (ret != STATUS_BUFFER_OVERFLOW)
 567             memcpy( dest, info->Data, info->DataLength );
 568     }
 569
 570     RtlFreeHeap( GetProcessHeap(), 0, info );
 571     return ret;
 572 }
 573
 574 /******************************************************************************
 575  *  NtFlushKey  [NTDLL.@]
 576  *  ZwFlushKey  [NTDLL.@]
 577  */
 578 NTSTATUS WINAPI NtFlushKey(HANDLE key)
 579 {
 580     NTSTATUS ret;
 581
 582     TRACE("key=%p\n", key);
 583
 584     SERVER_START_REQ( flush_key )
 585     {
 586         req->hkey = wine_server_obj_handle( key );
 587         ret = wine_server_call( req );
 588     }
 589     SERVER_END_REQ;
 590
 591     return ret;
 592 }
 593
 594 /******************************************************************************
 595  *  NtLoadKey   [NTDLL.@]
 596  *  ZwLoadKey   [NTDLL.@]
 597  */
 598 NTSTATUS WINAPI NtLoadKey( const OBJECT_ATTRIBUTES *attr, OBJECT_ATTRIBUTES *file )
 599 {
 600     NTSTATUS ret;
 601     HANDLE hive;
 602     IO_STATUS_BLOCK io;
 603
 604     TRACE("(%p,%p)\n", attr, file);
 605
 606     ret = NtCreateFile(&hive, GENERIC_READ, file, &io, NULL, FILE_ATTRIBUTE_NORMAL, 0,
 607                        FILE_OPEN, 0, NULL, 0);
 608     if (ret) return ret;
 609
 610     SERVER_START_REQ( load_registry )
 611     {
 612         req->hkey = wine_server_obj_handle( attr->RootDirectory );
 613         req->file = wine_server_obj_handle( hive );
 614         wine_server_add_data(req, attr->ObjectName->Buffer, attr->ObjectName->Length);
 615         ret = wine_server_call( req );
 616     }
 617     SERVER_END_REQ;
 618
 619     NtClose(hive);
 620
 621     return ret;
 622 }
 623
 624 /******************************************************************************
 625  *  NtNotifyChangeKey   [NTDLL.@]
 626  *  ZwNotifyChangeKey   [NTDLL.@]
 627  */
 628 NTSTATUS WINAPI NtNotifyChangeKey(
 629         IN HANDLE KeyHandle,
 630         IN HANDLE Event,
 631         IN PIO_APC_ROUTINE ApcRoutine OPTIONAL,
 632         IN PVOID ApcContext OPTIONAL,
 633         OUT PIO_STATUS_BLOCK IoStatusBlock,
 634         IN ULONG CompletionFilter,
 635         IN BOOLEAN Asynchronous,
 636         OUT PVOID ChangeBuffer,
 637         IN ULONG Length,
 638         IN BOOLEAN WatchSubtree)
 639 {
 640     NTSTATUS ret;
 641
 642     TRACE("(%p,%p,%p,%p,%p,0x%08x, 0x%08x,%p,0x%08x,0x%08x)\n",
 643         KeyHandle, Event, ApcRoutine, ApcContext, IoStatusBlock, CompletionFilter,
 644         Asynchronous, ChangeBuffer, Length, WatchSubtree);
 645
 646     if (ApcRoutine || ApcContext || ChangeBuffer || Length)
 647         FIXME("Unimplemented optional parameter\n");
 648
 649     if (!Asynchronous)
 650     {
 651         OBJECT_ATTRIBUTES attr;
 652         InitializeObjectAttributes( &attr, NULL, 0, NULL, NULL );
 653         ret = NtCreateEvent( &Event, EVENT_ALL_ACCESS, &attr, SynchronizationEvent, FALSE );
 654         if (ret != STATUS_SUCCESS)
 655             return ret;
 656     }
 657
 658     SERVER_START_REQ( set_registry_notification )
 659     {
 660         req->hkey    = wine_server_obj_handle( KeyHandle );
 661         req->event   = wine_server_obj_handle( Event );
 662         req->subtree = WatchSubtree;
 663         req->filter  = CompletionFilter;
 664         ret = wine_server_call( req );
 665     }
 666     SERVER_END_REQ;
 667
 668     if (!Asynchronous)
 669     {
 670         if (ret == STATUS_SUCCESS)
 671             NtWaitForSingleObject( Event, FALSE, NULL );
 672         NtClose( Event );
 673     }
 674
 675     return STATUS_SUCCESS;
 676 }
 677
 678 /******************************************************************************
 679  * NtQueryMultipleValueKey [NTDLL]
 680  * ZwQueryMultipleValueKey
 681  */
 682
 683 NTSTATUS WINAPI NtQueryMultipleValueKey(
 684         HANDLE KeyHandle,
 685         PKEY_MULTIPLE_VALUE_INFORMATION ListOfValuesToQuery,
 686         ULONG NumberOfItems,
 687         PVOID MultipleValueInformation,
 688         ULONG Length,
 689         PULONG  ReturnLength)
 690 {
 691         FIXME("(%p,%p,0x%08x,%p,0x%08x,%p) stub!\n",
 692         KeyHandle, ListOfValuesToQuery, NumberOfItems, MultipleValueInformation,
 693         Length,ReturnLength);
 694         return STATUS_SUCCESS;
 695 }
 696
 697 /******************************************************************************
 698  * NtReplaceKey [NTDLL.@]
 699  * ZwReplaceKey [NTDLL.@]
 700  */
 701 NTSTATUS WINAPI NtReplaceKey(
 702         IN POBJECT_ATTRIBUTES ObjectAttributes,
 703         IN HANDLE Key,
 704         IN POBJECT_ATTRIBUTES ReplacedObjectAttributes)
 705 {
 706     FIXME("(%s,%p,%s),stub!\n", debugstr_ObjectAttributes(ObjectAttributes), Key,
 707           debugstr_ObjectAttributes(ReplacedObjectAttributes) );
 708     return STATUS_SUCCESS;
 709 }
 710 /******************************************************************************
 711  * NtRestoreKey [NTDLL.@]
 712  * ZwRestoreKey [NTDLL.@]
 713  */
 714 NTSTATUS WINAPI NtRestoreKey(
 715         HANDLE KeyHandle,
 716         HANDLE FileHandle,
 717         ULONG RestoreFlags)
 718 {
 719         FIXME("(%p,%p,0x%08x) stub\n",
 720         KeyHandle, FileHandle, RestoreFlags);
 721         return STATUS_SUCCESS;
 722 }
 723 /******************************************************************************
 724  * NtSaveKey [NTDLL.@]
 725  * ZwSaveKey [NTDLL.@]
 726  */
 727 NTSTATUS WINAPI NtSaveKey(IN HANDLE KeyHandle, IN HANDLE FileHandle)
 728 {
 729     NTSTATUS ret;
 730
 731     TRACE("(%p,%p)\n", KeyHandle, FileHandle);
 732
 733     SERVER_START_REQ( save_registry )
 734     {
 735         req->hkey = wine_server_obj_handle( KeyHandle );
 736         req->file = wine_server_obj_handle( FileHandle );
 737         ret = wine_server_call( req );
 738     }
 739     SERVER_END_REQ;
 740
 741     return ret;
 742 }
 743 /******************************************************************************
 744  * NtSetInformationKey [NTDLL.@]
 745  * ZwSetInformationKey [NTDLL.@]
 746  */
 747 NTSTATUS WINAPI NtSetInformationKey(
 748         IN HANDLE KeyHandle,
 749         IN const int KeyInformationClass,
 750         IN PVOID KeyInformation,
 751         IN ULONG KeyInformationLength)
 752 {
 753         FIXME("(%p,0x%08x,%p,0x%08x) stub\n",
 754         KeyHandle, KeyInformationClass, KeyInformation, KeyInformationLength);
 755         return STATUS_SUCCESS;
 756 }
 757
 758
 759 /******************************************************************************
 760  * NtSetValueKey [NTDLL.@]
 761  * ZwSetValueKey [NTDLL.@]
 762  *
 763  * NOTES
 764  *   win95 does not care about count for REG_SZ and finds out the len by itself (js)
 765  *   NT does definitely care (aj)
 766  */
 767 NTSTATUS WINAPI NtSetValueKey( HANDLE hkey, const UNICODE_STRING *name, ULONG TitleIndex,
 768                                ULONG type, const void *data, ULONG count )
 769 {
 770     NTSTATUS ret;
 771
 772     TRACE( "(%p,%s,%d,%p,%d)\n", hkey, debugstr_us(name), type, data, count );
 773
 774     if (name->Length > MAX_VALUE_LENGTH) return STATUS_BUFFER_OVERFLOW;
 775
 776     SERVER_START_REQ( set_key_value )
 777     {
 778         req->hkey    = wine_server_obj_handle( hkey );
 779         req->type    = type;
 780         req->namelen = name->Length;
 781         wine_server_add_data( req, name->Buffer, name->Length );
 782         wine_server_add_data( req, data, count );
 783         ret = wine_server_call( req );
 784     }
 785     SERVER_END_REQ;
 786     return ret;
 787 }
 788
 789 /******************************************************************************
 790  * RtlpNtSetValueKey [NTDLL.@]
 791  *
 792  */
 793 NTSTATUS WINAPI RtlpNtSetValueKey( HANDLE hkey, ULONG type, const void *data,
 794                                    ULONG count )
 795 {
 796     UNICODE_STRING name;
 797
 798     name.Length = 0;
 799     return NtSetValueKey( hkey, &name, 0, type, data, count );
 800 }
 801
 802 /******************************************************************************
 803  * NtUnloadKey [NTDLL.@]
 804  * ZwUnloadKey [NTDLL.@]
 805  */
 806 NTSTATUS WINAPI NtUnloadKey(IN POBJECT_ATTRIBUTES attr)
 807 {
 808     NTSTATUS ret;
 809
 810     TRACE("(%p)\n", attr);
 811
 812     SERVER_START_REQ( unload_registry )
 813     {
 814         req->hkey = wine_server_obj_handle( attr->RootDirectory );
 815         ret = wine_server_call(req);
 816     }
 817     SERVER_END_REQ;
 818
 819     return ret;
 820 }
 821
 822 /******************************************************************************
 823  *  RtlFormatCurrentUserKeyPath         [NTDLL.@]
 824  *
 825  */
 826 NTSTATUS WINAPI RtlFormatCurrentUserKeyPath( IN OUT PUNICODE_STRING KeyPath)
 827 {
 828     static const WCHAR pathW[] = {'\\','R','e','g','i','s','t','r','y','\\','U','s','e','r','\\'};
 829     HANDLE token;
 830     NTSTATUS status;
 831
 832     status = NtOpenThreadToken(GetCurrentThread(), TOKEN_READ, TRUE, &token);
 833     if (status == STATUS_NO_TOKEN)
 834         status = NtOpenProcessToken(GetCurrentProcess(), TOKEN_READ, &token);
 835     if (status == STATUS_SUCCESS)
 836     {
 837         char buffer[sizeof(TOKEN_USER) + sizeof(SID) + sizeof(DWORD)*SID_MAX_SUB_AUTHORITIES];
 838         DWORD len = sizeof(buffer);
 839
 840         status = NtQueryInformationToken(token, TokenUser, buffer, len, &len);
 841         if (status == STATUS_SUCCESS)
 842         {
 843             KeyPath->MaximumLength = 0;
 844             status = RtlConvertSidToUnicodeString(KeyPath, ((TOKEN_USER *)buffer)->User.Sid, FALSE);
 845             if (status == STATUS_BUFFER_OVERFLOW)
 846             {
 847                 PWCHAR buf = RtlAllocateHeap(GetProcessHeap(), 0,
 848                                              sizeof(pathW) + KeyPath->Length + sizeof(WCHAR));
 849                 if (buf)
 850                 {
 851                     memcpy(buf, pathW, sizeof(pathW));
 852                     KeyPath->MaximumLength = KeyPath->Length + sizeof(WCHAR);
 853                     KeyPath->Buffer = (PWCHAR)((LPBYTE)buf + sizeof(pathW));
 854                     status = RtlConvertSidToUnicodeString(KeyPath,
 855                                                           ((TOKEN_USER *)buffer)->User.Sid, FALSE);
 856                     KeyPath->Buffer = buf;
 857                     KeyPath->Length += sizeof(pathW);
 858                     KeyPath->MaximumLength += sizeof(pathW);
 859                 }
 860                 else
 861                     status = STATUS_NO_MEMORY;
 862             }
 863         }
 864         NtClose(token);
 865     }
 866     return status;
 867 }
 868
 869 /******************************************************************************
 870  *  RtlOpenCurrentUser          [NTDLL.@]
 871  *
 872  * NOTES
 873  *  If we return just HKEY_CURRENT_USER the advapi tries to find a remote
 874  *  registry (odd handle) and fails.
 875  */
 876 NTSTATUS WINAPI RtlOpenCurrentUser(
 877         IN ACCESS_MASK DesiredAccess, /* [in] */
 878         OUT PHANDLE KeyHandle)        /* [out] handle of HKEY_CURRENT_USER */
 879 {
 880         OBJECT_ATTRIBUTES ObjectAttributes;
 881         UNICODE_STRING ObjectName;
 882         NTSTATUS ret;
 883
 884         TRACE("(0x%08x, %p)\n",DesiredAccess, KeyHandle);
 885
 886         if ((ret = RtlFormatCurrentUserKeyPath(&ObjectName))) return ret;
 887         InitializeObjectAttributes(&ObjectAttributes,&ObjectName,OBJ_CASE_INSENSITIVE,0, NULL);
 888         ret = NtCreateKey(KeyHandle, DesiredAccess, &ObjectAttributes, 0, NULL, 0, NULL);
 889         RtlFreeUnicodeString(&ObjectName);
 890         return ret;
 891 }
 892
 893
 894 static NTSTATUS RTL_ReportRegistryValue(PKEY_VALUE_FULL_INFORMATION pInfo,
 895                                         PRTL_QUERY_REGISTRY_TABLE pQuery, PVOID pContext, PVOID pEnvironment)
 896 {
 897     PUNICODE_STRING str;
 898     UNICODE_STRING src, dst;
 899     LONG *bin;
 900     ULONG offset;
 901     PWSTR wstr;
 902     DWORD res;
 903     NTSTATUS status = STATUS_SUCCESS;
 904     ULONG len;
 905     LPWSTR String;
 906     ULONG count = 0;
 907
 908     if (pInfo == NULL)
 909     {
 910         if (pQuery->Flags & RTL_QUERY_REGISTRY_DIRECT)
 911             return STATUS_INVALID_PARAMETER;
 912         else
 913         {
 914             status = pQuery->QueryRoutine(pQuery->Name, pQuery->DefaultType, pQuery->DefaultData,
 915                                           pQuery->DefaultLength, pContext, pQuery->EntryContext);
 916         }
 917         return status;
 918     }
 919     len = pInfo->DataLength;
 920
 921     if (pQuery->Flags & RTL_QUERY_REGISTRY_DIRECT)
 922     {
 923         str = pQuery->EntryContext;
 924
 925         switch(pInfo->Type)
 926         {
 927         case REG_EXPAND_SZ:
 928             if (!(pQuery->Flags & RTL_QUERY_REGISTRY_NOEXPAND))
 929             {
 930                 RtlInitUnicodeString(&src, (WCHAR*)(((CHAR*)pInfo) + pInfo->DataOffset));
 931                 res = 0;
 932                 dst.MaximumLength = 0;
 933                 RtlExpandEnvironmentStrings_U(pEnvironment, &src, &dst, &res);
 934                 dst.Length = 0;
 935                 dst.MaximumLength = res;
 936                 dst.Buffer = RtlAllocateHeap(GetProcessHeap(), 0, res * sizeof(WCHAR));
 937                 RtlExpandEnvironmentStrings_U(pEnvironment, &src, &dst, &res);
 938                 status = pQuery->QueryRoutine(pQuery->Name, pInfo->Type, dst.Buffer,
 939                                      dst.Length, pContext, pQuery->EntryContext);
 940                 RtlFreeHeap(GetProcessHeap(), 0, dst.Buffer);
 941             }
 942
 943         case REG_SZ:
 944         case REG_LINK:
 945             if (str->Buffer == NULL)
 946                 RtlCreateUnicodeString(str, (WCHAR*)(((CHAR*)pInfo) + pInfo->DataOffset));
 947             else
 948                 RtlAppendUnicodeToString(str, (WCHAR*)(((CHAR*)pInfo) + pInfo->DataOffset));
 949             break;
 950
 951         case REG_MULTI_SZ:
 952             if (!(pQuery->Flags & RTL_QUERY_REGISTRY_NOEXPAND))
 953                 return STATUS_INVALID_PARAMETER;
 954
 955             if (str->Buffer == NULL)
 956             {
 957                 str->Buffer = RtlAllocateHeap(GetProcessHeap(), 0, len);
 958                 str->MaximumLength = len;
 959             }
 960             len = min(len, str->MaximumLength);
 961             memcpy(str->Buffer, ((CHAR*)pInfo) + pInfo->DataOffset, len);
 962             str->Length = len;
 963             break;
 964
 965         default:
 966             bin = pQuery->EntryContext;
 967             if (pInfo->DataLength <= sizeof(ULONG))
 968                 memcpy(bin, ((CHAR*)pInfo) + pInfo->DataOffset,
 969                     pInfo->DataLength);
 970             else
 971             {
 972                 if (bin[0] <= sizeof(ULONG))
 973                 {
 974                     memcpy(&bin[1], ((CHAR*)pInfo) + pInfo->DataOffset,
 975                     min(-bin[0], pInfo->DataLength));
 976                 }
 977                 else
 978                 {
 979                    len = min(bin[0], pInfo->DataLength);
 980                     bin[1] = len;
 981                     bin[2] = pInfo->Type;
 982                     memcpy(&bin[3], ((CHAR*)pInfo) + pInfo->DataOffset, len);
 983                 }
 984            }
 985            break;
 986         }
 987     }
 988     else
 989     {
 990         if((pQuery->Flags & RTL_QUERY_REGISTRY_NOEXPAND) ||
 991            (pInfo->Type != REG_EXPAND_SZ && pInfo->Type != REG_MULTI_SZ))
 992         {
 993             status = pQuery->QueryRoutine(pQuery->Name, pInfo->Type,
 994                 ((CHAR*)pInfo) + pInfo->DataOffset, pInfo->DataLength,
 995                 pContext, pQuery->EntryContext);
 996         }
 997         else if (pInfo->Type == REG_EXPAND_SZ)
 998         {
 999             RtlInitUnicodeString(&src, (WCHAR*)(((CHAR*)pInfo) + pInfo->DataOffset));
1000             res = 0;
1001             dst.MaximumLength = 0;
1002             RtlExpandEnvironmentStrings_U(pEnvironment, &src, &dst, &res);
1003             dst.Length = 0;
1004             dst.MaximumLength = res;
1005             dst.Buffer = RtlAllocateHeap(GetProcessHeap(), 0, res * sizeof(WCHAR));
1006             RtlExpandEnvironmentStrings_U(pEnvironment, &src, &dst, &res);
1007             status = pQuery->QueryRoutine(pQuery->Name, pInfo->Type, dst.Buffer,
1008                                           dst.Length, pContext, pQuery->EntryContext);
1009             RtlFreeHeap(GetProcessHeap(), 0, dst.Buffer);
1010         }
1011         else /* REG_MULTI_SZ */
1012         {
1013             if(pQuery->Flags & RTL_QUERY_REGISTRY_NOEXPAND)
1014             {
1015                 for (offset = 0; offset <= pInfo->DataLength; offset += len + sizeof(WCHAR))
1016                     {
1017                     wstr = (WCHAR*)(((CHAR*)pInfo) + offset);
1018                     len = strlenW(wstr) * sizeof(WCHAR);
1019                     status = pQuery->QueryRoutine(pQuery->Name, pInfo->Type, wstr, len,
1020                         pContext, pQuery->EntryContext);
1021                     if(status != STATUS_SUCCESS && status != STATUS_BUFFER_TOO_SMALL)
1022                         return status;
1023                     }
1024             }
1025             else
1026             {
1027                 while(count<=pInfo->DataLength)
1028                 {
1029                     String = (WCHAR*)(((CHAR*)pInfo) + pInfo->DataOffset)+count;
1030                     count+=strlenW(String)+1;
1031                     RtlInitUnicodeString(&src, (WCHAR*)(((CHAR*)pInfo) + pInfo->DataOffset));
1032                     res = 0;
1033                     dst.MaximumLength = 0;
1034                     RtlExpandEnvironmentStrings_U(pEnvironment, &src, &dst, &res);
1035                     dst.Length = 0;
1036                     dst.MaximumLength = res;
1037                     dst.Buffer = RtlAllocateHeap(GetProcessHeap(), 0, res * sizeof(WCHAR));
1038                     RtlExpandEnvironmentStrings_U(pEnvironment, &src, &dst, &res);
1039                     status = pQuery->QueryRoutine(pQuery->Name, pInfo->Type, dst.Buffer,
1040                                                   dst.Length, pContext, pQuery->EntryContext);
1041                     RtlFreeHeap(GetProcessHeap(), 0, dst.Buffer);
1042                     if(status != STATUS_SUCCESS && status != STATUS_BUFFER_TOO_SMALL)
1043                         return status;
1044                 }
1045             }
1046         }
1047     }
1048     return status;
1049 }
1050
1051
1052 static NTSTATUS RTL_GetKeyHandle(ULONG RelativeTo, PCWSTR Path, PHANDLE handle)
1053 {
1054     UNICODE_STRING KeyString;
1055     OBJECT_ATTRIBUTES regkey;
1056     PCWSTR base;
1057     INT len;
1058     NTSTATUS status;
1059
1060     static const WCHAR empty[] = {0};
1061     static const WCHAR control[] = {'\\','R','e','g','i','s','t','r','y','\\','M','a','c','h','i','n','e',
1062     '\\','S','y','s','t','e','m','\\','C','u','r','r','e','n','t','C','o','n','t','r','o','l','S','e','t','\\',
1063     'C','o','n','t','r','o','l','\\',0};
1064
1065     static const WCHAR devicemap[] = {'\\','R','e','g','i','s','t','r','y','\\','M','a','c','h','i','n','e','\\',
1066     'H','a','r','d','w','a','r','e','\\','D','e','v','i','c','e','M','a','p','\\',0};
1067
1068     static const WCHAR services[] = {'\\','R','e','g','i','s','t','r','y','\\','M','a','c','h','i','n','e','\\',
1069     'S','y','s','t','e','m','\\','C','u','r','r','e','n','t','C','o','n','t','r','o','l','S','e','t','\\',
1070     'S','e','r','v','i','c','e','s','\\',0};
1071
1072     static const WCHAR user[] = {'\\','R','e','g','i','s','t','r','y','\\','U','s','e','r','\\',
1073     'C','u','r','r','e','n','t','U','s','e','r','\\',0};
1074
1075     static const WCHAR windows_nt[] = {'\\','R','e','g','i','s','t','r','y','\\','M','a','c','h','i','n','e','\\',
1076     'S','o','f','t','w','a','r','e','\\','M','i','c','r','o','s','o','f','t','\\',
1077     'W','i','n','d','o','w','s',' ','N','T','\\','C','u','r','r','e','n','t','V','e','r','s','i','o','n','\\',0};
1078
1079     switch (RelativeTo & 0xff)
1080     {
1081     case RTL_REGISTRY_ABSOLUTE:
1082         base = empty;
1083         break;
1084
1085     case RTL_REGISTRY_CONTROL:
1086         base = control;
1087         break;
1088
1089     case RTL_REGISTRY_DEVICEMAP:
1090         base = devicemap;
1091         break;
1092
1093     case RTL_REGISTRY_SERVICES:
1094         base = services;
1095         break;
1096
1097     case RTL_REGISTRY_USER:
1098         base = user;
1099         break;
1100
1101     case RTL_REGISTRY_WINDOWS_NT:
1102         base = windows_nt;
1103         break;
1104
1105     default:
1106         return STATUS_INVALID_PARAMETER;
1107     }
1108
1109     len = (strlenW(base) + strlenW(Path) + 1) * sizeof(WCHAR);
1110     KeyString.Buffer = RtlAllocateHeap(GetProcessHeap(), 0, len);
1111     if (KeyString.Buffer == NULL)
1112         return STATUS_NO_MEMORY;
1113
1114     strcpyW(KeyString.Buffer, base);
1115     strcatW(KeyString.Buffer, Path);
1116     KeyString.Length = len - sizeof(WCHAR);
1117     KeyString.MaximumLength = len;
1118     InitializeObjectAttributes(&regkey, &KeyString, OBJ_CASE_INSENSITIVE, NULL, NULL);
1119     status = NtOpenKey(handle, KEY_ALL_ACCESS, &regkey);
1120     RtlFreeHeap(GetProcessHeap(), 0, KeyString.Buffer);
1121     return status;
1122 }
1123
1124 /*************************************************************************
1125  * RtlQueryRegistryValues   [NTDLL.@]
1126  *
1127  * Query multiple registry values with a signle call.
1128  *
1129  * PARAMS
1130  *  RelativeTo  [I] Registry path that Path refers to
1131  *  Path        [I] Path to key
1132  *  QueryTable  [I] Table of key values to query
1133  *  Context     [I] Parameter to pass to the application defined QueryRoutine function
1134  *  Environment [I] Optional parameter to use when performing expansion
1135  *
1136  * RETURNS
1137  *  STATUS_SUCCESS or an appropriate NTSTATUS error code.
1138  */
1139 NTSTATUS WINAPI RtlQueryRegistryValues(IN ULONG RelativeTo, IN PCWSTR Path,
1140                                        IN PRTL_QUERY_REGISTRY_TABLE QueryTable, IN PVOID Context,
1141                                        IN PVOID Environment OPTIONAL)
1142 {
1143     UNICODE_STRING Value;
1144     HANDLE handle, topkey;
1145     PKEY_VALUE_FULL_INFORMATION pInfo = NULL;
1146     ULONG len, buflen = 0;
1147     NTSTATUS status=STATUS_SUCCESS, ret = STATUS_SUCCESS;
1148     INT i;
1149
1150     TRACE("(%d, %s, %p, %p, %p)\n", RelativeTo, debugstr_w(Path), QueryTable, Context, Environment);
1151
1152     if(Path == NULL)
1153         return STATUS_INVALID_PARAMETER;
1154
1155     /* get a valid handle */
1156     if (RelativeTo & RTL_REGISTRY_HANDLE)
1157         topkey = handle = (HANDLE)Path;
1158     else
1159     {
1160         status = RTL_GetKeyHandle(RelativeTo, Path, &topkey);
1161         handle = topkey;
1162     }
1163     if(status != STATUS_SUCCESS)
1164         return status;
1165
1166     /* Process query table entries */
1167     for (; QueryTable->QueryRoutine != NULL || QueryTable->Name != NULL; ++QueryTable)
1168     {
1169         if (QueryTable->Flags &
1170             (RTL_QUERY_REGISTRY_SUBKEY | RTL_QUERY_REGISTRY_TOPKEY))
1171         {
1172             /* topkey must be kept open just in case we will reuse it later */
1173             if (handle != topkey)
1174                 NtClose(handle);
1175
1176             if (QueryTable->Flags & RTL_QUERY_REGISTRY_SUBKEY)
1177             {
1178                 handle = 0;
1179                 status = RTL_GetKeyHandle(PtrToUlong(QueryTable->Name), Path, &handle);
1180                 if(status != STATUS_SUCCESS)
1181                 {
1182                     ret = status;
1183                     goto out;
1184                 }
1185             }
1186             else
1187                 handle = topkey;
1188         }
1189
1190         if (QueryTable->Flags & RTL_QUERY_REGISTRY_NOVALUE)
1191         {
1192             QueryTable->QueryRoutine(QueryTable->Name, REG_NONE, NULL, 0,
1193                 Context, QueryTable->EntryContext);
1194             continue;
1195         }
1196
1197         if (!handle)
1198         {
1199             if (QueryTable->Flags & RTL_QUERY_REGISTRY_REQUIRED)
1200             {
1201                 ret = STATUS_OBJECT_NAME_NOT_FOUND;
1202                 goto out;
1203             }
1204             continue;
1205         }
1206
1207         if (QueryTable->Name == NULL)
1208         {
1209             if (QueryTable->Flags & RTL_QUERY_REGISTRY_DIRECT)
1210             {
1211                 ret = STATUS_INVALID_PARAMETER;
1212                 goto out;
1213             }
1214
1215             /* Report all subkeys */
1216             for (i = 0;; ++i)
1217             {
1218                 status = NtEnumerateValueKey(handle, i,
1219                     KeyValueFullInformation, pInfo, buflen, &len);
1220                 if (status == STATUS_NO_MORE_ENTRIES)
1221                     break;
1222                 if (status == STATUS_BUFFER_OVERFLOW ||
1223                     status == STATUS_BUFFER_TOO_SMALL)
1224                 {
1225                     buflen = len;
1226                     RtlFreeHeap(GetProcessHeap(), 0, pInfo);
1227                     pInfo = RtlAllocateHeap(GetProcessHeap(), 0, buflen);
1228                     NtEnumerateValueKey(handle, i, KeyValueFullInformation,
1229                         pInfo, buflen, &len);
1230                 }
1231
1232                 status = RTL_ReportRegistryValue(pInfo, QueryTable, Context, Environment);
1233                 if(status != STATUS_SUCCESS && status != STATUS_BUFFER_TOO_SMALL)
1234                 {
1235                     ret = status;
1236                     goto out;
1237                 }
1238                 if (QueryTable->Flags & RTL_QUERY_REGISTRY_DELETE)
1239                 {
1240                     RtlInitUnicodeString(&Value, pInfo->Name);
1241                     NtDeleteValueKey(handle, &Value);
1242                 }
1243             }
1244
1245             if (i == 0  && (QueryTable->Flags & RTL_QUERY_REGISTRY_REQUIRED))
1246             {
1247                 ret = STATUS_OBJECT_NAME_NOT_FOUND;
1248                 goto out;
1249             }
1250         }
1251         else
1252         {
1253             RtlInitUnicodeString(&Value, QueryTable->Name);
1254             status = NtQueryValueKey(handle, &Value, KeyValueFullInformation,
1255                 pInfo, buflen, &len);
1256             if (status == STATUS_BUFFER_OVERFLOW ||
1257                 status == STATUS_BUFFER_TOO_SMALL)
1258             {
1259                 buflen = len;
1260                 RtlFreeHeap(GetProcessHeap(), 0, pInfo);
1261                 pInfo = RtlAllocateHeap(GetProcessHeap(), 0, buflen);
1262                 status = NtQueryValueKey(handle, &Value,
1263                     KeyValueFullInformation, pInfo, buflen, &len);
1264             }
1265             if (status != STATUS_SUCCESS)
1266             {
1267                 if (QueryTable->Flags & RTL_QUERY_REGISTRY_REQUIRED)
1268                 {
1269                     ret = STATUS_OBJECT_NAME_NOT_FOUND;
1270                     goto out;
1271                 }
1272                 status = RTL_ReportRegistryValue(NULL, QueryTable, Context, Environment);
1273                 if(status != STATUS_SUCCESS && status != STATUS_BUFFER_TOO_SMALL)
1274                 {
1275                     ret = status;
1276                     goto out;
1277                 }
1278             }
1279             else
1280             {
1281                 status = RTL_ReportRegistryValue(pInfo, QueryTable, Context, Environment);
1282                 if(status != STATUS_SUCCESS && status != STATUS_BUFFER_TOO_SMALL)
1283                 {
1284                     ret = status;
1285                     goto out;
1286                 }
1287                 if (QueryTable->Flags & RTL_QUERY_REGISTRY_DELETE)
1288                     NtDeleteValueKey(handle, &Value);
1289             }
1290         }
1291     }
1292
1293 out:
1294     RtlFreeHeap(GetProcessHeap(), 0, pInfo);
1295     if (handle != topkey)
1296         NtClose(handle);
1297     NtClose(topkey);
1298     return ret;
1299 }
1300
1301 /*************************************************************************
1302  * RtlCheckRegistryKey   [NTDLL.@]
1303  *
1304  * Query multiple registry values with a signle call.
1305  *
1306  * PARAMS
1307  *  RelativeTo [I] Registry path that Path refers to
1308  *  Path       [I] Path to key
1309  *
1310  * RETURNS
1311  *  STATUS_SUCCESS if the specified key exists, or an NTSTATUS error code.
1312  */
1313 NTSTATUS WINAPI RtlCheckRegistryKey(IN ULONG RelativeTo, IN PWSTR Path)
1314 {
1315     HANDLE handle;
1316     NTSTATUS status;
1317
1318     TRACE("(%d, %s)\n", RelativeTo, debugstr_w(Path));
1319
1320     if((!RelativeTo) && Path == NULL)
1321         return STATUS_OBJECT_PATH_SYNTAX_BAD;
1322     if(RelativeTo & RTL_REGISTRY_HANDLE)
1323         return STATUS_SUCCESS;
1324
1325     status = RTL_GetKeyHandle(RelativeTo, Path, &handle);
1326     if (handle) NtClose(handle);
1327     if (status == STATUS_INVALID_HANDLE) status = STATUS_OBJECT_NAME_NOT_FOUND;
1328     return status;
1329 }
1330
1331 /*************************************************************************
1332  * RtlDeleteRegistryValue   [NTDLL.@]
1333  *
1334  * Query multiple registry values with a signle call.
1335  *
1336  * PARAMS
1337  *  RelativeTo [I] Registry path that Path refers to
1338  *  Path       [I] Path to key
1339  *  ValueName  [I] Name of the value to delete
1340  *
1341  * RETURNS
1342  *  STATUS_SUCCESS if the specified key is successfully deleted, or an NTSTATUS error code.
1343  */
1344 NTSTATUS WINAPI RtlDeleteRegistryValue(IN ULONG RelativeTo, IN PCWSTR Path, IN PCWSTR ValueName)
1345 {
1346     NTSTATUS status;
1347     HANDLE handle;
1348     UNICODE_STRING Value;
1349
1350     TRACE("(%d, %s, %s)\n", RelativeTo, debugstr_w(Path), debugstr_w(ValueName));
1351
1352     RtlInitUnicodeString(&Value, ValueName);
1353     if(RelativeTo == RTL_REGISTRY_HANDLE)
1354     {
1355         return NtDeleteValueKey((HANDLE)Path, &Value);
1356     }
1357     status = RTL_GetKeyHandle(RelativeTo, Path, &handle);
1358     if (status) return status;
1359     status = NtDeleteValueKey(handle, &Value);
1360     NtClose(handle);
1361     return status;
1362 }
1363
1364 /*************************************************************************
1365  * RtlWriteRegistryValue   [NTDLL.@]
1366  *
1367  * Sets the registry value with provided data.
1368  *
1369  * PARAMS
1370  *  RelativeTo [I] Registry path that path parameter refers to
1371  *  path       [I] Path to the key (or handle - see RTL_GetKeyHandle)
1372  *  name       [I] Name of the registry value to set
1373  *  type       [I] Type of the registry key to set
1374  *  data       [I] Pointer to the user data to be set
1375  *  length     [I] Length of the user data pointed by data
1376  *
1377  * RETURNS
1378  *  STATUS_SUCCESS if the specified key is successfully set,
1379  *  or an NTSTATUS error code.
1380  */
1381 NTSTATUS WINAPI RtlWriteRegistryValue( ULONG RelativeTo, PCWSTR path, PCWSTR name,
1382                                        ULONG type, PVOID data, ULONG length )
1383 {
1384     HANDLE hkey;
1385     NTSTATUS status;
1386     UNICODE_STRING str;
1387
1388     TRACE( "(%d, %s, %s) -> %d: %p [%d]\n", RelativeTo, debugstr_w(path), debugstr_w(name),
1389            type, data, length );
1390
1391     RtlInitUnicodeString( &str, name );
1392
1393     if (RelativeTo == RTL_REGISTRY_HANDLE)
1394         return NtSetValueKey( (HANDLE)path, &str, 0, type, data, length );
1395
1396     status = RTL_GetKeyHandle( RelativeTo, path, &hkey );
1397     if (status != STATUS_SUCCESS) return status;
1398
1399     status = NtSetValueKey( hkey, &str, 0, type, data, length );
1400     NtClose( hkey );
1401
1402     return status;
1403 }