dlls/ntdll/reg.c

   1 /*
   2  * Registry functions
   3  *
   4  * Copyright (C) 1999 Juergen Schmied
   5  * Copyright (C) 2000 Alexandre Julliard
   6  *
   7  * NOTES:
   8  *      HKEY_LOCAL_MACHINE      \\REGISTRY\\MACHINE
   9  *      HKEY_USERS              \\REGISTRY\\USER
  10  *      HKEY_CURRENT_CONFIG     \\REGISTRY\\MACHINE\\SYSTEM\\CURRENTCONTROLSET\\HARDWARE PROFILES\\CURRENT
  11   *     HKEY_CLASSES            \\REGISTRY\\MACHINE\\SOFTWARE\\CLASSES
  12  */
  13
  14 #include <string.h>
  15 #include "debugtools.h"
  16 #include "winreg.h"
  17 #include "winerror.h"
  18 #include "wine/unicode.h"
  19 #include "wine/server.h"
  20 #include "ntddk.h"
  21 #include "ntdll_misc.h"
  22
  23 DEFAULT_DEBUG_CHANNEL(reg);
  24
  25 /* maximum length of a key/value name in bytes (without terminating null) */
  26 #define MAX_NAME_LENGTH ((MAX_PATH-1) * sizeof(WCHAR))
  27
  28
  29 /******************************************************************************
  30  * NtCreateKey [NTDLL.@]
  31  * ZwCreateKey [NTDLL.@]
  32  */
  33 NTSTATUS WINAPI NtCreateKey( PHANDLE retkey, ACCESS_MASK access, const OBJECT_ATTRIBUTES *attr,
  34                              ULONG TitleIndex, const UNICODE_STRING *class, ULONG options,
  35                              PULONG dispos )
  36 {
  37     NTSTATUS ret;
  38     DWORD len = attr->ObjectName->Length;
  39
  40     TRACE( "(0x%x,%s,%s,%lx,%lx,%p)\n", attr->RootDirectory, debugstr_us(attr->ObjectName),
  41            debugstr_us(class), options, access, retkey );
  42
  43     if (len > MAX_NAME_LENGTH) return STATUS_BUFFER_OVERFLOW;
  44     len += sizeof(WCHAR);  /* for storing name length */
  45     if (class)
  46     {
  47         len += class->Length;
  48         if (len > REQUEST_MAX_VAR_SIZE) return STATUS_BUFFER_OVERFLOW;
  49     }
  50     if (!retkey) return STATUS_INVALID_PARAMETER;
  51
  52     SERVER_START_VAR_REQ( create_key, len )
  53     {
  54         WCHAR *data = server_data_ptr(req);
  55
  56         req->parent  = attr->RootDirectory;
  57         req->access  = access;
  58         req->options = options;
  59         req->modif   = 0;
  60
  61         *data++ = attr->ObjectName->Length;
  62         memcpy( data, attr->ObjectName->Buffer, attr->ObjectName->Length );
  63         if (class) memcpy( (char *)data + attr->ObjectName->Length, class->Buffer, class->Length );
  64         if (!(ret = SERVER_CALL()))
  65         {
  66             *retkey = req->hkey;
  67             if (dispos) *dispos = req->created ? REG_CREATED_NEW_KEY : REG_OPENED_EXISTING_KEY;
  68         }
  69     }
  70     SERVER_END_VAR_REQ;
  71     TRACE("<- 0x%04x\n", *retkey);
  72     return ret;
  73 }
  74
  75
  76 /******************************************************************************
  77  * NtOpenKey [NTDLL.@]
  78  * ZwOpenKey [NTDLL.@]
  79  *
  80  *   OUT        PHANDLE                 retkey (returns 0 when failure)
  81  *   IN         ACCESS_MASK             access
  82  *   IN         POBJECT_ATTRIBUTES      attr
  83  */
  84 NTSTATUS WINAPI NtOpenKey( PHANDLE retkey, ACCESS_MASK access, const OBJECT_ATTRIBUTES *attr )
  85 {
  86     NTSTATUS ret;
  87     DWORD len = attr->ObjectName->Length;
  88
  89     TRACE( "(0x%x,%s,%lx,%p)\n", attr->RootDirectory,
  90            debugstr_us(attr->ObjectName), access, retkey );
  91
  92     if (len > MAX_NAME_LENGTH) return STATUS_BUFFER_OVERFLOW;
  93     if (!retkey) return STATUS_INVALID_PARAMETER;
  94
  95     SERVER_START_VAR_REQ( open_key, len )
  96     {
  97         req->parent = attr->RootDirectory;
  98         req->access = access;
  99         memcpy( server_data_ptr(req), attr->ObjectName->Buffer, len );
 100         ret = SERVER_CALL();
 101         *retkey = req->hkey;
 102     }
 103     SERVER_END_VAR_REQ;
 104     TRACE("<- 0x%04x\n", *retkey);
 105     return ret;
 106 }
 107
 108
 109 /******************************************************************************
 110  * NtDeleteKey [NTDLL.@]
 111  * ZwDeleteKey [NTDLL.@]
 112  */
 113 NTSTATUS WINAPI NtDeleteKey( HANDLE hkey )
 114 {
 115     NTSTATUS ret;
 116
 117     TRACE( "(%x)\n", hkey );
 118
 119     SERVER_START_REQ( delete_key )
 120     {
 121         req->hkey = hkey;
 122         ret = SERVER_CALL();
 123     }
 124     SERVER_END_REQ;
 125     return ret;
 126 }
 127
 128
 129 /******************************************************************************
 130  * NtDeleteValueKey [NTDLL.@]
 131  * ZwDeleteValueKey [NTDLL.@]
 132  */
 133 NTSTATUS WINAPI NtDeleteValueKey( HANDLE hkey, const UNICODE_STRING *name )
 134 {
 135     NTSTATUS ret;
 136
 137     TRACE( "(0x%x,%s)\n", hkey, debugstr_us(name) );
 138     if (name->Length > MAX_NAME_LENGTH) return STATUS_BUFFER_OVERFLOW;
 139
 140     SERVER_START_VAR_REQ( delete_key_value, name->Length )
 141     {
 142         req->hkey = hkey;
 143         memcpy( server_data_ptr(req), name->Buffer, name->Length );
 144         ret = SERVER_CALL();
 145     }
 146     SERVER_END_VAR_REQ;
 147     return ret;
 148 }
 149
 150
 151 /******************************************************************************
 152  *     fill_key_info
 153  *
 154  * Helper function for NtQueryKey and NtEnumerateKey
 155  */
 156 static NTSTATUS fill_key_info( KEY_INFORMATION_CLASS info_class, void *info, DWORD length,
 157                                DWORD *result_len, const struct enum_key_request *req )
 158 {
 159     WCHAR *name_ptr = server_data_ptr(req);
 160     int name_size = *name_ptr++;
 161     WCHAR *class_ptr = (WCHAR *)((char *)name_ptr + name_size);
 162     int class_size = server_data_size(req) - sizeof(WCHAR) - name_size;
 163     int fixed_size;
 164     LARGE_INTEGER modif;
 165
 166     RtlSecondsSince1970ToTime( req->modif, (FILETIME *)&modif );
 167
 168     switch(info_class)
 169     {
 170     case KeyBasicInformation:
 171         {
 172             KEY_BASIC_INFORMATION keyinfo;
 173             fixed_size = sizeof(keyinfo) - sizeof(keyinfo.Name);
 174             keyinfo.LastWriteTime = modif;
 175             keyinfo.TitleIndex = 0;
 176             keyinfo.NameLength = name_size;
 177             memcpy( info, &keyinfo, min( length, fixed_size ) );
 178             class_size = 0;
 179         }
 180         break;
 181     case KeyFullInformation:
 182         {
 183             KEY_FULL_INFORMATION keyinfo;
 184             fixed_size = sizeof(keyinfo) - sizeof(keyinfo.Class);
 185             keyinfo.LastWriteTime = modif;
 186             keyinfo.TitleIndex = 0;
 187             keyinfo.ClassLength = class_size;
 188             keyinfo.ClassOffset = keyinfo.ClassLength ? fixed_size : -1;
 189             keyinfo.SubKeys = req->subkeys;
 190             keyinfo.MaxNameLen = req->max_subkey;
 191             keyinfo.MaxClassLen = req->max_class;
 192             keyinfo.Values = req->values;
 193             keyinfo.MaxValueNameLen = req->max_value;
 194             keyinfo.MaxValueDataLen = req->max_data;
 195             memcpy( info, &keyinfo, min( length, fixed_size ) );
 196             name_size = 0;
 197         }
 198         break;
 199     case KeyNodeInformation:
 200         {
 201             KEY_NODE_INFORMATION keyinfo;
 202             fixed_size = sizeof(keyinfo) - sizeof(keyinfo.Name);
 203             keyinfo.LastWriteTime = modif;
 204             keyinfo.TitleIndex = 0;
 205             keyinfo.ClassLength = class_size;
 206             keyinfo.ClassOffset = fixed_size + name_size;
 207             if (!keyinfo.ClassLength || keyinfo.ClassOffset > length) keyinfo.ClassOffset = -1;
 208             keyinfo.NameLength = name_size;
 209             memcpy( info, &keyinfo, min( length, fixed_size ) );
 210         }
 211         break;
 212     default:
 213         FIXME("Information class not implemented\n");
 214         return STATUS_INVALID_PARAMETER;
 215     }
 216
 217     *result_len = fixed_size + name_size + class_size;
 218     if (length <= fixed_size) return STATUS_BUFFER_OVERFLOW;
 219     length -= fixed_size;
 220
 221     /* copy the name */
 222     if (name_size)
 223     {
 224         memcpy( (char *)info + fixed_size, name_ptr, min(length,name_size) );
 225         if (length < name_size) return STATUS_BUFFER_OVERFLOW;
 226         length -= name_size;
 227     }
 228
 229     /* copy the class */
 230     if (class_size)
 231     {
 232         memcpy( (char *)info + fixed_size + name_size, class_ptr, min(length,class_size) );
 233         if (length < class_size) return STATUS_BUFFER_OVERFLOW;
 234     }
 235     return STATUS_SUCCESS;
 236 }
 237
 238
 239
 240 /******************************************************************************
 241  * NtEnumerateKey [NTDLL.@]
 242  * ZwEnumerateKey [NTDLL.@]
 243  *
 244  * NOTES
 245  *  the name copied into the buffer is NOT 0-terminated
 246  */
 247 NTSTATUS WINAPI NtEnumerateKey( HANDLE handle, ULONG index, KEY_INFORMATION_CLASS info_class,
 248                                 void *info, DWORD length, DWORD *result_len )
 249 {
 250     NTSTATUS ret;
 251
 252     /* -1 means query key, so avoid it here */
 253     if (index == (ULONG)-1) return STATUS_NO_MORE_ENTRIES;
 254
 255     SERVER_START_VAR_REQ( enum_key, REQUEST_MAX_VAR_SIZE )
 256     {
 257         req->hkey  = handle;
 258         req->index = index;
 259         req->full  = (info_class == KeyFullInformation);
 260         if (!(ret = SERVER_CALL()))
 261         {
 262             ret = fill_key_info( info_class, info, length, result_len, req );
 263         }
 264     }
 265     SERVER_END_VAR_REQ;
 266     return ret;
 267 }
 268
 269
 270 /******************************************************************************
 271  * NtQueryKey [NTDLL.@]
 272  * ZwQueryKey [NTDLL.@]
 273  */
 274 NTSTATUS WINAPI NtQueryKey( HANDLE handle, KEY_INFORMATION_CLASS info_class,
 275                             void *info, DWORD length, DWORD *result_len )
 276 {
 277     NTSTATUS ret;
 278
 279     SERVER_START_VAR_REQ( enum_key, REQUEST_MAX_VAR_SIZE )
 280     {
 281         req->hkey  = handle;
 282         req->index = -1;
 283         req->full  = (info_class == KeyFullInformation);
 284         if (!(ret = SERVER_CALL()))
 285         {
 286             ret = fill_key_info( info_class, info, length, result_len, req );
 287         }
 288     }
 289     SERVER_END_VAR_REQ;
 290     return ret;
 291 }
 292
 293
 294 /* fill the key value info structure for a specific info class */
 295 static void copy_key_value_info( KEY_VALUE_INFORMATION_CLASS info_class, void *info,
 296                                  DWORD length, int type, int name_len, int data_len )
 297 {
 298     switch(info_class)
 299     {
 300     case KeyValueBasicInformation:
 301         {
 302             KEY_VALUE_BASIC_INFORMATION keyinfo;
 303             keyinfo.TitleIndex = 0;
 304             keyinfo.Type       = type;
 305             keyinfo.NameLength = name_len;
 306             length = min( length, sizeof(keyinfo) - sizeof(keyinfo.Name) );
 307             memcpy( info, &keyinfo, length );
 308             break;
 309         }
 310     case KeyValueFullInformation:
 311         {
 312             KEY_VALUE_FULL_INFORMATION keyinfo;
 313             keyinfo.TitleIndex = 0;
 314             keyinfo.Type       = type;
 315             keyinfo.DataOffset = sizeof(keyinfo) - sizeof(keyinfo.Name) + name_len;
 316             keyinfo.DataLength = data_len;
 317             keyinfo.NameLength = name_len;
 318             length = min( length, sizeof(keyinfo) - sizeof(keyinfo.Name) );
 319             memcpy( info, &keyinfo, length );
 320             break;
 321         }
 322     case KeyValuePartialInformation:
 323         {
 324             KEY_VALUE_PARTIAL_INFORMATION keyinfo;
 325             keyinfo.TitleIndex = 0;
 326             keyinfo.Type       = type;
 327             keyinfo.DataLength = data_len;
 328             length = min( length, sizeof(keyinfo) - sizeof(keyinfo.Data) );
 329             memcpy( info, &keyinfo, length );
 330             break;
 331         }
 332     default:
 333         break;
 334     }
 335 }
 336
 337
 338 /******************************************************************************
 339  *  NtEnumerateValueKey [NTDLL.@]
 340  *  ZwEnumerateValueKey [NTDLL.@]
 341  */
 342 NTSTATUS WINAPI NtEnumerateValueKey( HANDLE handle, ULONG index,
 343                                      KEY_VALUE_INFORMATION_CLASS info_class,
 344                                      void *info, DWORD length, DWORD *result_len )
 345 {
 346     NTSTATUS ret;
 347     char *data_ptr, *name_ptr;
 348     int fixed_size = 0, name_len = 0, data_len = 0, offset = 0, type = 0, total_len = 0;
 349
 350     TRACE( "(0x%x,%lu,%d,%p,%ld)\n", handle, index, info_class, info, length );
 351
 352     /* compute the length we want to retrieve */
 353     switch(info_class)
 354     {
 355     case KeyValueBasicInformation:
 356         fixed_size = sizeof(KEY_VALUE_BASIC_INFORMATION) - sizeof(WCHAR);
 357         name_ptr = (char *)info + fixed_size;
 358         data_ptr = NULL;
 359         break;
 360     case KeyValueFullInformation:
 361         fixed_size = sizeof(KEY_VALUE_FULL_INFORMATION) - sizeof(WCHAR);
 362         name_ptr = data_ptr = (char *)info + fixed_size;
 363         break;
 364     case KeyValuePartialInformation:
 365         fixed_size = sizeof(KEY_VALUE_PARTIAL_INFORMATION) - sizeof(UCHAR);
 366         name_ptr = NULL;
 367         data_ptr = (char *)info + fixed_size;
 368         break;
 369     default:
 370         FIXME( "Information class %d not implemented\n", info_class );
 371         return STATUS_INVALID_PARAMETER;
 372     }
 373     if (length > fixed_size) data_len = length - fixed_size;
 374
 375     do
 376     {
 377         size_t reqlen = data_len + sizeof(WCHAR);
 378         if (name_ptr && !offset) reqlen += MAX_PATH*sizeof(WCHAR);
 379         reqlen = min( reqlen, REQUEST_MAX_VAR_SIZE );
 380
 381         SERVER_START_VAR_REQ( enum_key_value, reqlen )
 382         {
 383             req->hkey = handle;
 384             req->index = index;
 385             req->offset = offset;
 386
 387             if (!(ret = SERVER_CALL()))
 388             {
 389                 size_t size = server_data_size(req) - sizeof(WCHAR);
 390                 WCHAR *name = server_data_ptr(req);
 391                 if (!offset)  /* name is only present on the first request */
 392                 {
 393                     name_len = *name++;
 394                     size -= name_len;
 395                     if (name_ptr)
 396                     {
 397                         if (name_len > data_len)  /* overflow */
 398                         {
 399                             memcpy( name_ptr, name, data_len );
 400                             data_len = 0;
 401                             ret = STATUS_BUFFER_OVERFLOW;
 402                         }
 403                         else
 404                         {
 405                             memcpy( name_ptr, name, name_len );
 406                             data_len -= name_len;
 407                             if (data_ptr) data_ptr += name_len;
 408                         }
 409                     }
 410                     name += name_len / sizeof(WCHAR);
 411                 }
 412                 else name++;  /* skip 0 length */
 413
 414                 if (data_ptr)
 415                 {
 416                     size = min( size, data_len );
 417                     memcpy( data_ptr + offset, name, size );
 418                     offset += size;
 419                     data_len -= size;
 420                 }
 421                 type = req->type;
 422                 total_len = req->len;
 423             }
 424         }
 425         SERVER_END_VAR_REQ;
 426         if (ret) return ret;
 427     } while (data_len && data_ptr && offset < total_len);
 428
 429     *result_len = total_len + fixed_size + (name_ptr ? name_len : 0);
 430
 431     if (data_ptr && offset < total_len) ret = STATUS_BUFFER_OVERFLOW;
 432     if (length < fixed_size) ret = STATUS_BUFFER_OVERFLOW;
 433
 434     copy_key_value_info( info_class, info, length, type, name_len, total_len );
 435     return ret;
 436
 437 }
 438
 439
 440 /******************************************************************************
 441  * NtQueryValueKey [NTDLL.@]
 442  * ZwQueryValueKey [NTDLL.@]
 443  *
 444  * NOTES
 445  *  the name in the KeyValueInformation is never set
 446  */
 447 NTSTATUS WINAPI NtQueryValueKey( HANDLE handle, const UNICODE_STRING *name,
 448                                  KEY_VALUE_INFORMATION_CLASS info_class,
 449                                  void *info, DWORD length, DWORD *result_len )
 450 {
 451     NTSTATUS ret;
 452     char *data_ptr;
 453     int fixed_size = 0, data_len = 0, offset = 0, type = 0, total_len = 0;
 454
 455     TRACE( "(0x%x,%s,%d,%p,%ld)\n", handle, debugstr_us(name), info_class, info, length );
 456
 457     if (name->Length > MAX_NAME_LENGTH) return STATUS_BUFFER_OVERFLOW;
 458
 459     /* compute the length we want to retrieve */
 460     switch(info_class)
 461     {
 462     case KeyValueBasicInformation:
 463         fixed_size = sizeof(KEY_VALUE_BASIC_INFORMATION) - sizeof(WCHAR);
 464         data_ptr = NULL;
 465         break;
 466     case KeyValueFullInformation:
 467         fixed_size = sizeof(KEY_VALUE_FULL_INFORMATION) - sizeof(WCHAR);
 468         data_ptr = (char *)info + fixed_size;
 469         break;
 470     case KeyValuePartialInformation:
 471         fixed_size = sizeof(KEY_VALUE_PARTIAL_INFORMATION) - sizeof(UCHAR);
 472         data_ptr = (char *)info + fixed_size;
 473         break;
 474     default:
 475         FIXME( "Information class %d not implemented\n", info_class );
 476         return STATUS_INVALID_PARAMETER;
 477     }
 478     if (data_ptr && length > fixed_size) data_len = length - fixed_size;
 479
 480     do
 481     {
 482         size_t reqlen = min( data_len, REQUEST_MAX_VAR_SIZE );
 483         reqlen = max( reqlen, name->Length + sizeof(WCHAR) );
 484
 485         SERVER_START_VAR_REQ( get_key_value, reqlen )
 486         {
 487             WCHAR *nameptr = server_data_ptr(req);
 488
 489             req->hkey = handle;
 490             req->offset = offset;
 491             *nameptr++ = name->Length;
 492             memcpy( nameptr, name->Buffer, name->Length );
 493
 494             if (!(ret = SERVER_CALL()))
 495             {
 496                 size_t size = min( server_data_size(req), data_len );
 497                 type = req->type;
 498                 total_len = req->len;
 499                 if (size)
 500                 {
 501                     memcpy( data_ptr + offset, server_data_ptr(req), size );
 502                     offset += size;
 503                     data_len -= size;
 504                 }
 505             }
 506         }
 507         SERVER_END_VAR_REQ;
 508         if (ret) return ret;
 509     } while (data_len && offset < total_len);
 510
 511     *result_len = total_len + fixed_size;
 512
 513     if (offset < total_len) ret = STATUS_BUFFER_OVERFLOW;
 514     if (length < fixed_size) ret = STATUS_BUFFER_OVERFLOW;
 515
 516     copy_key_value_info( info_class, info, length, type, 0, total_len );
 517     return ret;
 518 }
 519
 520
 521 /******************************************************************************
 522  *  NtFlushKey  [NTDLL.@]
 523  *  ZwFlushKey  [NTDLL.@]
 524  */
 525 NTSTATUS WINAPI NtFlushKey(HANDLE KeyHandle)
 526 {
 527         FIXME("(0x%08x) stub!\n",
 528         KeyHandle);
 529         return 1;
 530 }
 531
 532 /******************************************************************************
 533  *  NtLoadKey   [NTDLL.@]
 534  *  ZwLoadKey   [NTDLL.@]
 535  */
 536 NTSTATUS WINAPI NtLoadKey( const OBJECT_ATTRIBUTES *attr, const OBJECT_ATTRIBUTES *file )
 537 {
 538     FIXME("stub!\n");
 539     dump_ObjectAttributes(attr);
 540     dump_ObjectAttributes(file);
 541     return STATUS_SUCCESS;
 542 }
 543
 544 /******************************************************************************
 545  *  NtNotifyChangeKey   [NTDLL.@]
 546  *  ZwNotifyChangeKey   [NTDLL.@]
 547  */
 548 NTSTATUS WINAPI NtNotifyChangeKey(
 549         IN HANDLE KeyHandle,
 550         IN HANDLE Event,
 551         IN PIO_APC_ROUTINE ApcRoutine OPTIONAL,
 552         IN PVOID ApcContext OPTIONAL,
 553         OUT PIO_STATUS_BLOCK IoStatusBlock,
 554         IN ULONG CompletionFilter,
 555         IN BOOLEAN Asynchroneous,
 556         OUT PVOID ChangeBuffer,
 557         IN ULONG Length,
 558         IN BOOLEAN WatchSubtree)
 559 {
 560         FIXME("(0x%08x,0x%08x,%p,%p,%p,0x%08lx, 0x%08x,%p,0x%08lx,0x%08x) stub!\n",
 561         KeyHandle, Event, ApcRoutine, ApcContext, IoStatusBlock, CompletionFilter,
 562         Asynchroneous, ChangeBuffer, Length, WatchSubtree);
 563         return STATUS_SUCCESS;
 564 }
 565
 566 /******************************************************************************
 567  * NtQueryMultipleValueKey [NTDLL]
 568  * ZwQueryMultipleValueKey
 569  */
 570
 571 NTSTATUS WINAPI NtQueryMultipleValueKey(
 572         HANDLE KeyHandle,
 573         PVALENTW ListOfValuesToQuery,
 574         ULONG NumberOfItems,
 575         PVOID MultipleValueInformation,
 576         ULONG Length,
 577         PULONG  ReturnLength)
 578 {
 579         FIXME("(0x%08x,%p,0x%08lx,%p,0x%08lx,%p) stub!\n",
 580         KeyHandle, ListOfValuesToQuery, NumberOfItems, MultipleValueInformation,
 581         Length,ReturnLength);
 582         return STATUS_SUCCESS;
 583 }
 584
 585 /******************************************************************************
 586  * NtReplaceKey [NTDLL.@]
 587  * ZwReplaceKey [NTDLL.@]
 588  */
 589 NTSTATUS WINAPI NtReplaceKey(
 590         IN POBJECT_ATTRIBUTES ObjectAttributes,
 591         IN HANDLE Key,
 592         IN POBJECT_ATTRIBUTES ReplacedObjectAttributes)
 593 {
 594         FIXME("(0x%08x),stub!\n", Key);
 595         dump_ObjectAttributes(ObjectAttributes);
 596         dump_ObjectAttributes(ReplacedObjectAttributes);
 597         return STATUS_SUCCESS;
 598 }
 599 /******************************************************************************
 600  * NtRestoreKey [NTDLL.@]
 601  * ZwRestoreKey [NTDLL.@]
 602  */
 603 NTSTATUS WINAPI NtRestoreKey(
 604         HANDLE KeyHandle,
 605         HANDLE FileHandle,
 606         ULONG RestoreFlags)
 607 {
 608         FIXME("(0x%08x,0x%08x,0x%08lx) stub\n",
 609         KeyHandle, FileHandle, RestoreFlags);
 610         return STATUS_SUCCESS;
 611 }
 612 /******************************************************************************
 613  * NtSaveKey [NTDLL.@]
 614  * ZwSaveKey [NTDLL.@]
 615  */
 616 NTSTATUS WINAPI NtSaveKey(
 617         IN HANDLE KeyHandle,
 618         IN HANDLE FileHandle)
 619 {
 620         FIXME("(0x%08x,0x%08x) stub\n",
 621         KeyHandle, FileHandle);
 622         return STATUS_SUCCESS;
 623 }
 624 /******************************************************************************
 625  * NtSetInformationKey [NTDLL.@]
 626  * ZwSetInformationKey [NTDLL.@]
 627  */
 628 NTSTATUS WINAPI NtSetInformationKey(
 629         IN HANDLE KeyHandle,
 630         IN const int KeyInformationClass,
 631         IN PVOID KeyInformation,
 632         IN ULONG KeyInformationLength)
 633 {
 634         FIXME("(0x%08x,0x%08x,%p,0x%08lx) stub\n",
 635         KeyHandle, KeyInformationClass, KeyInformation, KeyInformationLength);
 636         return STATUS_SUCCESS;
 637 }
 638
 639
 640 /******************************************************************************
 641  * NtSetValueKey [NTDLL.@]
 642  * ZwSetValueKey [NTDLL.@]
 643  *
 644  * NOTES
 645  *   win95 does not care about count for REG_SZ and finds out the len by itself (js)
 646  *   NT does definitely care (aj)
 647  */
 648 NTSTATUS WINAPI NtSetValueKey( HANDLE hkey, const UNICODE_STRING *name, ULONG TitleIndex,
 649                                ULONG type, const void *data, ULONG count )
 650 {
 651     NTSTATUS ret;
 652     ULONG namelen, pos;
 653
 654     TRACE( "(0x%x,%s,%ld,%p,%ld)\n", hkey, debugstr_us(name), type, data, count );
 655
 656     if (name->Length > MAX_NAME_LENGTH) return STATUS_BUFFER_OVERFLOW;
 657
 658     namelen = name->Length + sizeof(WCHAR);  /* for storing length */
 659     pos = 0;
 660
 661     do
 662     {
 663         ULONG len = count - pos;
 664         if (len > REQUEST_MAX_VAR_SIZE - namelen) len = REQUEST_MAX_VAR_SIZE - namelen;
 665
 666         SERVER_START_VAR_REQ( set_key_value, namelen + len )
 667         {
 668             WCHAR *name_ptr = server_data_ptr(req);
 669
 670             req->hkey   = hkey;
 671             req->type   = type;
 672             req->total  = count;
 673             req->offset = pos;
 674             *name_ptr++ = name->Length;
 675             memcpy( name_ptr, name->Buffer, name->Length );
 676             memcpy( (char *)name_ptr + name->Length, (char *)data + pos, len );
 677             pos += len;
 678             ret = SERVER_CALL();
 679         }
 680         SERVER_END_VAR_REQ;
 681     } while (!ret && pos < count);
 682     return ret;
 683 }
 684
 685 /******************************************************************************
 686  * NtUnloadKey [NTDLL.@]
 687  * ZwUnloadKey [NTDLL.@]
 688  */
 689 NTSTATUS WINAPI NtUnloadKey(
 690         IN HANDLE KeyHandle)
 691 {
 692         FIXME("(0x%08x) stub\n",
 693         KeyHandle);
 694         return STATUS_SUCCESS;
 695 }
 696
 697 /******************************************************************************
 698  *  RtlFormatCurrentUserKeyPath         [NTDLL.@]
 699  */
 700 NTSTATUS WINAPI RtlFormatCurrentUserKeyPath(
 701         IN OUT PUNICODE_STRING KeyPath)
 702 {
 703 /*      LPSTR Path = "\\REGISTRY\\USER\\S-1-5-21-0000000000-000000000-0000000000-500";*/
 704         LPSTR Path = "\\REGISTRY\\USER\\.DEFAULT";
 705         ANSI_STRING AnsiPath;
 706
 707         FIXME("(%p) stub\n",KeyPath);
 708         RtlInitAnsiString(&AnsiPath, Path);
 709         return RtlAnsiStringToUnicodeString(KeyPath, &AnsiPath, TRUE);
 710 }
 711
 712 /******************************************************************************
 713  *  RtlOpenCurrentUser          [NTDLL.@]
 714  *
 715  * if we return just HKEY_CURRENT_USER the advapi tries to find a remote
 716  * registry (odd handle) and fails
 717  *
 718  */
 719 DWORD WINAPI RtlOpenCurrentUser(
 720         IN ACCESS_MASK DesiredAccess, /* [in] */
 721         OUT PHANDLE KeyHandle)        /* [out] handle of HKEY_CURRENT_USER */
 722 {
 723         OBJECT_ATTRIBUTES ObjectAttributes;
 724         UNICODE_STRING ObjectName;
 725         NTSTATUS ret;
 726
 727         TRACE("(0x%08lx, %p) stub\n",DesiredAccess, KeyHandle);
 728
 729         RtlFormatCurrentUserKeyPath(&ObjectName);
 730         InitializeObjectAttributes(&ObjectAttributes,&ObjectName,OBJ_CASE_INSENSITIVE,0, NULL);
 731         ret = NtOpenKey(KeyHandle, DesiredAccess, &ObjectAttributes);
 732         RtlFreeUnicodeString(&ObjectName);
 733         return ret;
 734 }