dlls/advapi32/registry.c

   1 /*
   2  * Registry management
   3  *
   4  * Copyright (C) 1999 Alexandre Julliard
   5  *
   6  * Based on misc/registry.c code
   7  * Copyright (C) 1996 Marcus Meissner
   8  * Copyright (C) 1998 Matthew Becker
   9  * Copyright (C) 1999 Sylvain St-Germain
  10  *
  11  * This file is concerned about handle management and interaction with the Wine server.
  12  * Registry file I/O is in misc/registry.c.
  13  *
  14  * This library is free software; you can redistribute it and/or
  15  * modify it under the terms of the GNU Lesser General Public
  16  * License as published by the Free Software Foundation; either
  17  * version 2.1 of the License, or (at your option) any later version.
  18  *
  19  * This library is distributed in the hope that it will be useful,
  20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  22  * Lesser General Public License for more details.
  23  *
  24  * You should have received a copy of the GNU Lesser General Public
  25  * License along with this library; if not, write to the Free Software
  26  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  27  */
  28
  29 #include <stdlib.h>
  30 #include <stdarg.h>
  31 #include <stdio.h>
  32
  33 #include "windef.h"
  34 #include "winbase.h"
  35 #include "winreg.h"
  36 #include "winerror.h"
  37 #include "ntstatus.h"
  38 #include "wine/unicode.h"
  39 #include "wine/server.h"
  40 #include "wine/debug.h"
  41 #include "winternl.h"
  42
  43 WINE_DEFAULT_DEBUG_CHANNEL(reg);
  44
  45 /* allowed bits for access mask */
  46 #define KEY_ACCESS_MASK (KEY_ALL_ACCESS | MAXIMUM_ALLOWED)
  47
  48 #define HKEY_SPECIAL_ROOT_FIRST   HKEY_CLASSES_ROOT
  49 #define HKEY_SPECIAL_ROOT_LAST    HKEY_DYN_DATA
  50 #define NB_SPECIAL_ROOT_KEYS      ((UINT)HKEY_SPECIAL_ROOT_LAST - (UINT)HKEY_SPECIAL_ROOT_FIRST + 1)
  51
  52 static HKEY special_root_keys[NB_SPECIAL_ROOT_KEYS];
  53
  54 static const WCHAR name_CLASSES_ROOT[] =
  55     {'M','a','c','h','i','n','e','\\',
  56      'S','o','f','t','w','a','r','e','\\',
  57      'C','l','a','s','s','e','s',0};
  58 static const WCHAR name_LOCAL_MACHINE[] =
  59     {'M','a','c','h','i','n','e',0};
  60 static const WCHAR name_USERS[] =
  61     {'U','s','e','r',0};
  62 static const WCHAR name_PERFORMANCE_DATA[] =
  63     {'P','e','r','f','D','a','t','a',0};
  64 static const WCHAR name_CURRENT_CONFIG[] =
  65     {'M','a','c','h','i','n','e','\\',
  66      'S','y','s','t','e','m','\\',
  67      'C','u','r','r','e','n','t','C','o','n','t','r','o','l','S','e','t','\\',
  68      'H','a','r','d','w','a','r','e',' ','P','r','o','f','i','l','e','s','\\',
  69      'C','u','r','r','e','n','t',0};
  70 static const WCHAR name_DYN_DATA[] =
  71     {'D','y','n','D','a','t','a',0};
  72
  73 #define DECL_STR(key) { sizeof(name_##key)-sizeof(WCHAR), sizeof(name_##key), (LPWSTR)name_##key }
  74 static UNICODE_STRING root_key_names[NB_SPECIAL_ROOT_KEYS] =
  75 {
  76     DECL_STR(CLASSES_ROOT),
  77     { 0, 0, NULL },         /* HKEY_CURRENT_USER is determined dynamically */
  78     DECL_STR(LOCAL_MACHINE),
  79     DECL_STR(USERS),
  80     DECL_STR(PERFORMANCE_DATA),
  81     DECL_STR(CURRENT_CONFIG),
  82     DECL_STR(DYN_DATA)
  83 };
  84 #undef DECL_STR
  85
  86
  87 /* check if value type needs string conversion (Ansi<->Unicode) */
  88 inline static int is_string( DWORD type )
  89 {
  90     return (type == REG_SZ) || (type == REG_EXPAND_SZ) || (type == REG_MULTI_SZ);
  91 }
  92
  93 /* check if current version is NT or Win95 */
  94 inline static int is_version_nt(void)
  95 {
  96     return !(GetVersion() & 0x80000000);
  97 }
  98
  99 /* create one of the HKEY_* special root keys */
 100 static HKEY create_special_root_hkey( HKEY hkey, DWORD access )
 101 {
 102     HKEY ret = 0;
 103     int idx = (UINT)hkey - (UINT)HKEY_SPECIAL_ROOT_FIRST;
 104
 105     if (hkey == HKEY_CURRENT_USER)
 106     {
 107         if (RtlOpenCurrentUser( access, &hkey )) return 0;
 108         TRACE( "HKEY_CURRENT_USER -> %p\n", hkey );
 109     }
 110     else
 111     {
 112         OBJECT_ATTRIBUTES attr;
 113
 114         attr.Length = sizeof(attr);
 115         attr.RootDirectory = 0;
 116         attr.ObjectName = &root_key_names[idx];
 117         attr.Attributes = 0;
 118         attr.SecurityDescriptor = NULL;
 119         attr.SecurityQualityOfService = NULL;
 120         if (NtCreateKey( &hkey, access, &attr, 0, NULL, 0, NULL )) return 0;
 121         TRACE( "%s -> %p\n", debugstr_w(attr.ObjectName->Buffer), hkey );
 122     }
 123
 124     if (!(ret = InterlockedCompareExchangePointer( (void **)&special_root_keys[idx], hkey, 0 )))
 125         ret = hkey;
 126     else
 127         NtClose( hkey );  /* somebody beat us to it */
 128     return ret;
 129 }
 130
 131 /* map the hkey from special root to normal key if necessary */
 132 inline static HKEY get_special_root_hkey( HKEY hkey )
 133 {
 134     HKEY ret = hkey;
 135
 136     if ((hkey >= HKEY_SPECIAL_ROOT_FIRST) && (hkey <= HKEY_SPECIAL_ROOT_LAST))
 137     {
 138         if (!(ret = special_root_keys[(UINT)hkey - (UINT)HKEY_SPECIAL_ROOT_FIRST]))
 139             ret = create_special_root_hkey( hkey, KEY_ALL_ACCESS );
 140     }
 141     return ret;
 142 }
 143
 144
 145 /******************************************************************************
 146  * RegCreateKeyExW   [ADVAPI32.@]
 147  *
 148  * See RegCreateKeyExA.
 149  */
 150 DWORD WINAPI RegCreateKeyExW( HKEY hkey, LPCWSTR name, DWORD reserved, LPCWSTR class,
 151                               DWORD options, REGSAM access, SECURITY_ATTRIBUTES *sa,
 152                               PHKEY retkey, LPDWORD dispos )
 153 {
 154     OBJECT_ATTRIBUTES attr;
 155     UNICODE_STRING nameW, classW;
 156
 157     if (reserved) return ERROR_INVALID_PARAMETER;
 158     if (!(access & KEY_ACCESS_MASK) || (access & ~KEY_ACCESS_MASK)) return ERROR_ACCESS_DENIED;
 159     if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
 160
 161     attr.Length = sizeof(attr);
 162     attr.RootDirectory = hkey;
 163     attr.ObjectName = &nameW;
 164     attr.Attributes = 0;
 165     attr.SecurityDescriptor = NULL;
 166     attr.SecurityQualityOfService = NULL;
 167     RtlInitUnicodeString( &nameW, name );
 168     RtlInitUnicodeString( &classW, class );
 169
 170     return RtlNtStatusToDosError( NtCreateKey( retkey, access, &attr, 0,
 171                                                &classW, options, dispos ) );
 172 }
 173
 174
 175 /******************************************************************************
 176  * RegCreateKeyExA   [ADVAPI32.@]
 177  *
 178  * Open a registry key, creating it if it doesn't exist.
 179  *
 180  * PARAMS
 181  *  hkey       [I] Handle of the parent registry key
 182  *  name       [I] Name of the new key to open or create
 183  *  reserved   [I] Reserved, pass 0
 184  *  class      [I] The object type of the new key
 185  *  options    [I] Flags controlling the key creation (REG_OPTION_* flags from "winnt.h")
 186  *  access     [I] Access level desired
 187  *  sa         [I] Security attributes for the key
 188  *  retkey     [O] Destination for the resulting handle
 189  *  dispos     [O] Receives REG_CREATED_NEW_KEY or REG_OPENED_EXISTING_KEY
 190  *
 191  * RETURNS
 192  *  Success: ERROR_SUCCESS.
 193  *  Failure: A standard Win32 error code. retkey remains untouched.
 194  *
 195  * FIXME
 196  *  MAXIMUM_ALLOWED in access mask not supported by server
 197  */
 198 DWORD WINAPI RegCreateKeyExA( HKEY hkey, LPCSTR name, DWORD reserved, LPCSTR class,
 199                               DWORD options, REGSAM access, SECURITY_ATTRIBUTES *sa,
 200                               PHKEY retkey, LPDWORD dispos )
 201 {
 202     OBJECT_ATTRIBUTES attr;
 203     UNICODE_STRING classW;
 204     ANSI_STRING nameA, classA;
 205     NTSTATUS status;
 206
 207     if (reserved) return ERROR_INVALID_PARAMETER;
 208     if (!is_version_nt()) access = KEY_ALL_ACCESS;  /* Win95 ignores the access mask */
 209     else if (!(access & KEY_ACCESS_MASK) || (access & ~KEY_ACCESS_MASK)) return ERROR_ACCESS_DENIED;
 210     if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
 211
 212     attr.Length = sizeof(attr);
 213     attr.RootDirectory = hkey;
 214     attr.ObjectName = &NtCurrentTeb()->StaticUnicodeString;
 215     attr.Attributes = 0;
 216     attr.SecurityDescriptor = NULL;
 217     attr.SecurityQualityOfService = NULL;
 218     RtlInitAnsiString( &nameA, name );
 219     RtlInitAnsiString( &classA, class );
 220
 221     if (!(status = RtlAnsiStringToUnicodeString( &NtCurrentTeb()->StaticUnicodeString,
 222                                                  &nameA, FALSE )))
 223     {
 224         if (!(status = RtlAnsiStringToUnicodeString( &classW, &classA, TRUE )))
 225         {
 226             status = NtCreateKey( retkey, access, &attr, 0, &classW, options, dispos );
 227             RtlFreeUnicodeString( &classW );
 228         }
 229     }
 230     return RtlNtStatusToDosError( status );
 231 }
 232
 233
 234 /******************************************************************************
 235  * RegCreateKeyW   [ADVAPI32.@]
 236  *
 237  * Creates the specified reg key.
 238  *
 239  * PARAMS
 240  *  hKey      [I] Handle to an open key.
 241  *  lpSubKey  [I] Name of a key that will be opened or created.
 242  *  phkResult [O] Receives a handle to the opened or created key.
 243  *
 244  * RETURNS
 245  *  Success: ERROR_SUCCESS
 246  *  Failure: nonzero error code defined in Winerror.h
 247  */
 248 DWORD WINAPI RegCreateKeyW( HKEY hkey, LPCWSTR lpSubKey, PHKEY phkResult )
 249 {
 250     /* FIXME: previous implementation converted ERROR_INVALID_HANDLE to ERROR_BADKEY, */
 251     /* but at least my version of NT (4.0 SP5) doesn't do this.  -- AJ */
 252     return RegCreateKeyExW( hkey, lpSubKey, 0, NULL, REG_OPTION_NON_VOLATILE,
 253                             KEY_ALL_ACCESS, NULL, phkResult, NULL );
 254 }
 255
 256
 257 /******************************************************************************
 258  * RegCreateKeyA   [ADVAPI32.@]
 259  *
 260  * see RegCreateKeyW
 261  */
 262 DWORD WINAPI RegCreateKeyA( HKEY hkey, LPCSTR lpSubKey, PHKEY phkResult )
 263 {
 264     return RegCreateKeyExA( hkey, lpSubKey, 0, NULL, REG_OPTION_NON_VOLATILE,
 265                             KEY_ALL_ACCESS, NULL, phkResult, NULL );
 266 }
 267
 268
 269
 270 /******************************************************************************
 271  * RegOpenKeyExW   [ADVAPI32.@]
 272  *
 273  * See RegOpenKeyExA.
 274  */
 275 DWORD WINAPI RegOpenKeyExW( HKEY hkey, LPCWSTR name, DWORD reserved, REGSAM access, PHKEY retkey )
 276 {
 277     OBJECT_ATTRIBUTES attr;
 278     UNICODE_STRING nameW;
 279
 280     if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
 281
 282     attr.Length = sizeof(attr);
 283     attr.RootDirectory = hkey;
 284     attr.ObjectName = &nameW;
 285     attr.Attributes = 0;
 286     attr.SecurityDescriptor = NULL;
 287     attr.SecurityQualityOfService = NULL;
 288     RtlInitUnicodeString( &nameW, name );
 289     return RtlNtStatusToDosError( NtOpenKey( retkey, access, &attr ) );
 290 }
 291
 292
 293 /******************************************************************************
 294  * RegOpenKeyExA   [ADVAPI32.@]
 295  *
 296  * Open a registry key.
 297  *
 298  * PARAMS
 299  *  hkey       [I] Handle of open key
 300  *  name       [I] Name of subkey to open
 301  *  reserved   [I] Reserved - must be zero
 302  *  access     [I] Security access mask
 303  *  retkey     [O] Handle to open key
 304  *
 305  * RETURNS
 306  *  Success: ERROR_SUCCESS
 307  *  Failure: A standard Win32 error code. retkey is set to 0.
 308  *
 309  * NOTES
 310  *  Unlike RegCreateKeyExA(), this function will not create the key if it
 311  *  does not exist.
 312  */
 313 DWORD WINAPI RegOpenKeyExA( HKEY hkey, LPCSTR name, DWORD reserved, REGSAM access, PHKEY retkey )
 314 {
 315     OBJECT_ATTRIBUTES attr;
 316     STRING nameA;
 317     NTSTATUS status;
 318
 319     if (!is_version_nt()) access = KEY_ALL_ACCESS;  /* Win95 ignores the access mask */
 320
 321     if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
 322
 323     attr.Length = sizeof(attr);
 324     attr.RootDirectory = hkey;
 325     attr.ObjectName = &NtCurrentTeb()->StaticUnicodeString;
 326     attr.Attributes = 0;
 327     attr.SecurityDescriptor = NULL;
 328     attr.SecurityQualityOfService = NULL;
 329
 330     RtlInitAnsiString( &nameA, name );
 331     if (!(status = RtlAnsiStringToUnicodeString( &NtCurrentTeb()->StaticUnicodeString,
 332                                                  &nameA, FALSE )))
 333     {
 334         status = NtOpenKey( retkey, access, &attr );
 335     }
 336     return RtlNtStatusToDosError( status );
 337 }
 338
 339
 340 /******************************************************************************
 341  * RegOpenKeyW   [ADVAPI32.@]
 342  *
 343  * See RegOpenKeyA.
 344  */
 345 DWORD WINAPI RegOpenKeyW( HKEY hkey, LPCWSTR name, PHKEY retkey )
 346 {
 347     if (!name || !*name)
 348     {
 349         *retkey = hkey;
 350         return ERROR_SUCCESS;
 351     }
 352     return RegOpenKeyExW( hkey, name, 0, KEY_ALL_ACCESS, retkey );
 353 }
 354
 355
 356 /******************************************************************************
 357  * RegOpenKeyA   [ADVAPI32.@]
 358  *
 359  * Open a registry key.
 360  *
 361  * PARAMS
 362  *  hkey    [I] Handle of parent key to open the new key under
 363  *  name    [I] Name of the key under hkey to open
 364  *  retkey  [O] Destination for the resulting Handle
 365  *
 366  * RETURNS
 367  *  Success: ERROR_SUCCESS
 368  *  Failure: A standard Win32 error code. retkey is set to 0.
 369  */
 370 DWORD WINAPI RegOpenKeyA( HKEY hkey, LPCSTR name, PHKEY retkey )
 371 {
 372     if (!name || !*name)
 373     {
 374         *retkey = hkey;
 375         return ERROR_SUCCESS;
 376     }
 377     return RegOpenKeyExA( hkey, name, 0, KEY_ALL_ACCESS, retkey );
 378 }
 379
 380
 381 /******************************************************************************
 382  * RegOpenCurrentUser   [ADVAPI32.@]
 383  *
 384  * FIXME: This function is supposed to retrieve a handle to the
 385  * HKEY_CURRENT_USER for the user the current thread is impersonating.
 386  * Since Wine does not currently allow threads to impersonate other users,
 387  * this stub should work fine.
 388  */
 389 DWORD WINAPI RegOpenCurrentUser( REGSAM access, PHKEY retkey )
 390 {
 391     return RegOpenKeyExA( HKEY_CURRENT_USER, "", 0, access, retkey );
 392 }
 393
 394
 395
 396 /******************************************************************************
 397  * RegEnumKeyExW   [ADVAPI32.@]
 398  *
 399  * PARAMS
 400  *  hkey         [I] Handle to key to enumerate
 401  *  index        [I] Index of subkey to enumerate
 402  *  name         [O] Buffer for subkey name
 403  *  name_len     [O] Size of subkey buffer
 404  *  reserved     [I] Reserved
 405  *  class        [O] Buffer for class string
 406  *  class_len    [O] Size of class buffer
 407  *  ft           [O] Time key last written to
 408  *
 409  * RETURNS
 410  *  Success: ERROR_SUCCESS
 411  *  Failure: System error code. If there are no more subkeys available, the
 412  *           function returns ERROR_NO_MORE_ITEMS.
 413  */
 414 DWORD WINAPI RegEnumKeyExW( HKEY hkey, DWORD index, LPWSTR name, LPDWORD name_len,
 415                             LPDWORD reserved, LPWSTR class, LPDWORD class_len, FILETIME *ft )
 416 {
 417     NTSTATUS status;
 418     char buffer[256], *buf_ptr = buffer;
 419     KEY_NODE_INFORMATION *info = (KEY_NODE_INFORMATION *)buffer;
 420     DWORD total_size;
 421
 422     TRACE( "(%p,%ld,%p,%p(%ld),%p,%p,%p,%p)\n", hkey, index, name, name_len,
 423            name_len ? *name_len : -1, reserved, class, class_len, ft );
 424
 425     if (reserved) return ERROR_INVALID_PARAMETER;
 426     if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
 427
 428     status = NtEnumerateKey( hkey, index, KeyNodeInformation,
 429                              buffer, sizeof(buffer), &total_size );
 430
 431     while (status == STATUS_BUFFER_OVERFLOW)
 432     {
 433         /* retry with a dynamically allocated buffer */
 434         if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
 435         if (!(buf_ptr = HeapAlloc( GetProcessHeap(), 0, total_size )))
 436             return ERROR_NOT_ENOUGH_MEMORY;
 437         info = (KEY_NODE_INFORMATION *)buf_ptr;
 438         status = NtEnumerateKey( hkey, index, KeyNodeInformation,
 439                                  buf_ptr, total_size, &total_size );
 440     }
 441
 442     if (!status)
 443     {
 444         DWORD len = info->NameLength / sizeof(WCHAR);
 445         DWORD cls_len = info->ClassLength / sizeof(WCHAR);
 446
 447         if (ft) *ft = *(FILETIME *)&info->LastWriteTime;
 448
 449         if (len >= *name_len || (class && class_len && (cls_len >= *class_len)))
 450             status = STATUS_BUFFER_OVERFLOW;
 451         else
 452         {
 453             *name_len = len;
 454             memcpy( name, info->Name, info->NameLength );
 455             name[len] = 0;
 456             if (class_len)
 457             {
 458                 *class_len = cls_len;
 459                 if (class)
 460                 {
 461                     memcpy( class, buf_ptr + info->ClassOffset, info->ClassLength );
 462                     class[cls_len] = 0;
 463                 }
 464             }
 465         }
 466     }
 467
 468     if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
 469     return RtlNtStatusToDosError( status );
 470 }
 471
 472
 473 /******************************************************************************
 474  * RegEnumKeyExA   [ADVAPI32.@]
 475  *
 476  * see RegEnumKeyExW
 477  */
 478 DWORD WINAPI RegEnumKeyExA( HKEY hkey, DWORD index, LPSTR name, LPDWORD name_len,
 479                             LPDWORD reserved, LPSTR class, LPDWORD class_len, FILETIME *ft )
 480 {
 481     NTSTATUS status;
 482     char buffer[256], *buf_ptr = buffer;
 483     KEY_NODE_INFORMATION *info = (KEY_NODE_INFORMATION *)buffer;
 484     DWORD total_size;
 485
 486     TRACE( "(%p,%ld,%p,%p(%ld),%p,%p,%p,%p)\n", hkey, index, name, name_len,
 487            name_len ? *name_len : -1, reserved, class, class_len, ft );
 488
 489     if (reserved) return ERROR_INVALID_PARAMETER;
 490     if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
 491
 492     status = NtEnumerateKey( hkey, index, KeyNodeInformation,
 493                              buffer, sizeof(buffer), &total_size );
 494
 495     while (status == STATUS_BUFFER_OVERFLOW)
 496     {
 497         /* retry with a dynamically allocated buffer */
 498         if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
 499         if (!(buf_ptr = HeapAlloc( GetProcessHeap(), 0, total_size )))
 500             return ERROR_NOT_ENOUGH_MEMORY;
 501         info = (KEY_NODE_INFORMATION *)buf_ptr;
 502         status = NtEnumerateKey( hkey, index, KeyNodeInformation,
 503                                  buf_ptr, total_size, &total_size );
 504     }
 505
 506     if (!status)
 507     {
 508         DWORD len, cls_len;
 509
 510         RtlUnicodeToMultiByteSize( &len, info->Name, info->NameLength );
 511         RtlUnicodeToMultiByteSize( &cls_len, (WCHAR *)(buf_ptr + info->ClassOffset),
 512                                    info->ClassLength );
 513         if (ft) *ft = *(FILETIME *)&info->LastWriteTime;
 514
 515         if (len >= *name_len || (class && class_len && (cls_len >= *class_len)))
 516             status = STATUS_BUFFER_OVERFLOW;
 517         else
 518         {
 519             *name_len = len;
 520             RtlUnicodeToMultiByteN( name, len, NULL, info->Name, info->NameLength );
 521             name[len] = 0;
 522             if (class_len)
 523             {
 524                 *class_len = cls_len;
 525                 if (class)
 526                 {
 527                     RtlUnicodeToMultiByteN( class, cls_len, NULL,
 528                                             (WCHAR *)(buf_ptr + info->ClassOffset),
 529                                             info->ClassLength );
 530                     class[cls_len] = 0;
 531                 }
 532             }
 533         }
 534     }
 535
 536     if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
 537     return RtlNtStatusToDosError( status );
 538 }
 539
 540
 541 /******************************************************************************
 542  * RegEnumKeyW   [ADVAPI32.@]
 543  *
 544  * Enumerates subkyes of the specified open reg key.
 545  *
 546  * PARAMS
 547  *  hKey    [I] Handle to an open key.
 548  *  dwIndex [I] Index of the subkey of hKey to retrieve.
 549  *  lpName  [O] Name of the subkey.
 550  *  cchName [I] Size of lpName in TCHARS.
 551  *
 552  * RETURNS
 553  *  Success: ERROR_SUCCESS
 554  *  Failure: system error code. If there are no more subkeys available, the
 555  *           function returns ERROR_NO_MORE_ITEMS.
 556  */
 557 DWORD WINAPI RegEnumKeyW( HKEY hkey, DWORD index, LPWSTR name, DWORD name_len )
 558 {
 559     return RegEnumKeyExW( hkey, index, name, &name_len, NULL, NULL, NULL, NULL );
 560 }
 561
 562
 563 /******************************************************************************
 564  * RegEnumKeyA   [ADVAPI32.@]
 565  *
 566  * see RegEnumKeyW
 567  */
 568 DWORD WINAPI RegEnumKeyA( HKEY hkey, DWORD index, LPSTR name, DWORD name_len )
 569 {
 570     return RegEnumKeyExA( hkey, index, name, &name_len, NULL, NULL, NULL, NULL );
 571 }
 572
 573
 574 /******************************************************************************
 575  * RegQueryInfoKeyW   [ADVAPI32.@]
 576  *
 577  * PARAMS
 578  *    hkey       [I] Handle to key to query
 579  *    class      [O] Buffer for class string
 580  *    class_len  [O] Size of class string buffer
 581  *    reserved   [I] Reserved
 582  *    subkeys    [O] Buffer for number of subkeys
 583  *    max_subkey [O] Buffer for longest subkey name length
 584  *    max_class  [O] Buffer for longest class string length
 585  *    values     [O] Buffer for number of value entries
 586  *    max_value  [O] Buffer for longest value name length
 587  *    max_data   [O] Buffer for longest value data length
 588  *    security   [O] Buffer for security descriptor length
 589  *    modif      [O] Modification time
 590  *
 591  * - win95 allows class to be valid and class_len to be NULL
 592  * - winnt returns ERROR_INVALID_PARAMETER if class is valid and class_len is NULL
 593  * - both allow class to be NULL and class_len to be NULL
 594  * (it's hard to test validity, so test !NULL instead)
 595  */
 596 DWORD WINAPI RegQueryInfoKeyW( HKEY hkey, LPWSTR class, LPDWORD class_len, LPDWORD reserved,
 597                                LPDWORD subkeys, LPDWORD max_subkey, LPDWORD max_class,
 598                                LPDWORD values, LPDWORD max_value, LPDWORD max_data,
 599                                LPDWORD security, FILETIME *modif )
 600 {
 601     NTSTATUS status;
 602     char buffer[256], *buf_ptr = buffer;
 603     KEY_FULL_INFORMATION *info = (KEY_FULL_INFORMATION *)buffer;
 604     DWORD total_size;
 605
 606     TRACE( "(%p,%p,%ld,%p,%p,%p,%p,%p,%p,%p,%p)\n", hkey, class, class_len ? *class_len : 0,
 607            reserved, subkeys, max_subkey, values, max_value, max_data, security, modif );
 608
 609     if (class && !class_len && is_version_nt()) return ERROR_INVALID_PARAMETER;
 610     if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
 611
 612     status = NtQueryKey( hkey, KeyFullInformation, buffer, sizeof(buffer), &total_size );
 613     if (status && status != STATUS_BUFFER_OVERFLOW) goto done;
 614
 615     if (class)
 616     {
 617         /* retry with a dynamically allocated buffer */
 618         while (status == STATUS_BUFFER_OVERFLOW)
 619         {
 620             if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
 621             if (!(buf_ptr = HeapAlloc( GetProcessHeap(), 0, total_size )))
 622                 return ERROR_NOT_ENOUGH_MEMORY;
 623             info = (KEY_FULL_INFORMATION *)buf_ptr;
 624             status = NtQueryKey( hkey, KeyFullInformation, buf_ptr, total_size, &total_size );
 625         }
 626
 627         if (status) goto done;
 628
 629         if (class_len && (info->ClassLength/sizeof(WCHAR) + 1 > *class_len))
 630         {
 631             status = STATUS_BUFFER_OVERFLOW;
 632         }
 633         else
 634         {
 635             memcpy( class, buf_ptr + info->ClassOffset, info->ClassLength );
 636             class[info->ClassLength/sizeof(WCHAR)] = 0;
 637         }
 638     }
 639     else status = STATUS_SUCCESS;
 640
 641     if (class_len) *class_len = info->ClassLength / sizeof(WCHAR);
 642     if (subkeys) *subkeys = info->SubKeys;
 643     if (max_subkey) *max_subkey = info->MaxNameLen;
 644     if (max_class) *max_class = info->MaxClassLen;
 645     if (values) *values = info->Values;
 646     if (max_value) *max_value = info->MaxValueNameLen;
 647     if (max_data) *max_data = info->MaxValueDataLen;
 648     if (modif) *modif = *(FILETIME *)&info->LastWriteTime;
 649
 650  done:
 651     if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
 652     return RtlNtStatusToDosError( status );
 653 }
 654
 655
 656 /******************************************************************************
 657  * RegQueryMultipleValuesA   [ADVAPI32.@]
 658  *
 659  * Retrieves the type and data for a list of value names associated with a key.
 660  *
 661  * PARAMS
 662  *  hKey       [I] Handle to an open key.
 663  *  val_list   [O] Array of VALENT structures that describes the entries.
 664  *  num_vals   [I] Number of elements in val_list.
 665  *  lpValueBuf [O] Pointer to a buffer that receives the data for each value.
 666  *  ldwTotsize [I/O] Size of lpValueBuf.
 667  *
 668  * RETURNS
 669  *  Success: ERROR_SUCCESS. ldwTotsize contains num bytes copied.
 670  *  Failure: nonzero error code from Winerror.h ldwTotsize contains num needed
 671  *           bytes.
 672  */
 673 DWORD WINAPI RegQueryMultipleValuesA(HKEY hkey, PVALENTA val_list, DWORD num_vals,
 674                                      LPSTR lpValueBuf, LPDWORD ldwTotsize)
 675 {
 676     unsigned int i;
 677     DWORD maxBytes = *ldwTotsize;
 678     HRESULT status;
 679     LPSTR bufptr = lpValueBuf;
 680     *ldwTotsize = 0;
 681
 682     TRACE("(%p,%p,%ld,%p,%p=%ld)\n", hkey, val_list, num_vals, lpValueBuf, ldwTotsize, *ldwTotsize);
 683
 684     for(i=0; i < num_vals; ++i)
 685     {
 686
 687         val_list[i].ve_valuelen=0;
 688         status = RegQueryValueExA(hkey, val_list[i].ve_valuename, NULL, NULL, NULL, &val_list[i].ve_valuelen);
 689         if(status != ERROR_SUCCESS)
 690         {
 691             return status;
 692         }
 693
 694         if(lpValueBuf != NULL && *ldwTotsize + val_list[i].ve_valuelen <= maxBytes)
 695         {
 696             status = RegQueryValueExA(hkey, val_list[i].ve_valuename, NULL, &val_list[i].ve_type,
 697                                       bufptr, &val_list[i].ve_valuelen);
 698             if(status != ERROR_SUCCESS)
 699             {
 700                 return status;
 701             }
 702
 703             val_list[i].ve_valueptr = (DWORD_PTR)bufptr;
 704
 705             bufptr += val_list[i].ve_valuelen;
 706         }
 707
 708         *ldwTotsize += val_list[i].ve_valuelen;
 709     }
 710     return lpValueBuf != NULL && *ldwTotsize <= maxBytes ? ERROR_SUCCESS : ERROR_MORE_DATA;
 711 }
 712
 713
 714 /******************************************************************************
 715  * RegQueryMultipleValuesW   [ADVAPI32.@]
 716  *
 717  * see RegQueryMultipleValuesA
 718  */
 719 DWORD WINAPI RegQueryMultipleValuesW(HKEY hkey, PVALENTW val_list, DWORD num_vals,
 720                                      LPWSTR lpValueBuf, LPDWORD ldwTotsize)
 721 {
 722     unsigned int i;
 723     DWORD maxBytes = *ldwTotsize;
 724     HRESULT status;
 725     LPSTR bufptr = (LPSTR)lpValueBuf;
 726     *ldwTotsize = 0;
 727
 728     TRACE("(%p,%p,%ld,%p,%p=%ld)\n", hkey, val_list, num_vals, lpValueBuf, ldwTotsize, *ldwTotsize);
 729
 730     for(i=0; i < num_vals; ++i)
 731     {
 732         val_list[i].ve_valuelen=0;
 733         status = RegQueryValueExW(hkey, val_list[i].ve_valuename, NULL, NULL, NULL, &val_list[i].ve_valuelen);
 734         if(status != ERROR_SUCCESS)
 735         {
 736             return status;
 737         }
 738
 739         if(lpValueBuf != NULL && *ldwTotsize + val_list[i].ve_valuelen <= maxBytes)
 740         {
 741             status = RegQueryValueExW(hkey, val_list[i].ve_valuename, NULL, &val_list[i].ve_type,
 742                                       bufptr, &val_list[i].ve_valuelen);
 743             if(status != ERROR_SUCCESS)
 744             {
 745                 return status;
 746             }
 747
 748             val_list[i].ve_valueptr = (DWORD_PTR)bufptr;
 749
 750             bufptr += val_list[i].ve_valuelen;
 751         }
 752
 753         *ldwTotsize += val_list[i].ve_valuelen;
 754     }
 755     return lpValueBuf != NULL && *ldwTotsize <= maxBytes ? ERROR_SUCCESS : ERROR_MORE_DATA;
 756 }
 757
 758 /******************************************************************************
 759  * RegQueryInfoKeyA   [ADVAPI32.@]
 760  *
 761  * Retrieves information about a registry key.
 762  *
 763  * PARAMS
 764  *  hKey                   [I] Handle to an open key.
 765  *  lpClass                [O] Class string of the key.
 766  *  lpcClass               [I/O] size of lpClass.
 767  *  lpReserved             [I] Reserved; must be NULL.
 768  *  lpcSubKeys             [O] Number of subkeys contained by the key.
 769  *  lpcMaxSubKeyLen        [O] Size of the key's subkey with the longest name.
 770  *  lpcMaxClassLen         [O] Size of the longest string specifying a subkey
 771  *                             class in TCHARS.
 772  *  lpcValues              [O] Number of values associated with the key.
 773  *  lpcMaxValueNameLen     [O] Size of the key's longest value name in TCHARS.
 774  *  lpcMaxValueLen         [O] Longest data component among the key's values
 775  *  lpcbSecurityDescriptor [O] Size of the key's security descriptor.
 776  *  lpftLastWriteTime      [O] FILETIME strucutre that is the last write time.
 777  *
 778  *  RETURNS
 779  *   Success: ERROR_SUCCESS
 780  *   Failure: nonzero error code from Winerror.h
 781  */
 782 DWORD WINAPI RegQueryInfoKeyA( HKEY hkey, LPSTR class, LPDWORD class_len, LPDWORD reserved,
 783                                LPDWORD subkeys, LPDWORD max_subkey, LPDWORD max_class,
 784                                LPDWORD values, LPDWORD max_value, LPDWORD max_data,
 785                                LPDWORD security, FILETIME *modif )
 786 {
 787     NTSTATUS status;
 788     char buffer[256], *buf_ptr = buffer;
 789     KEY_FULL_INFORMATION *info = (KEY_FULL_INFORMATION *)buffer;
 790     DWORD total_size, len;
 791
 792     TRACE( "(%p,%p,%ld,%p,%p,%p,%p,%p,%p,%p,%p)\n", hkey, class, class_len ? *class_len : 0,
 793            reserved, subkeys, max_subkey, values, max_value, max_data, security, modif );
 794
 795     if (class && !class_len && is_version_nt()) return ERROR_INVALID_PARAMETER;
 796     if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
 797
 798     status = NtQueryKey( hkey, KeyFullInformation, buffer, sizeof(buffer), &total_size );
 799     if (status && status != STATUS_BUFFER_OVERFLOW) goto done;
 800
 801     if (class || class_len)
 802     {
 803         /* retry with a dynamically allocated buffer */
 804         while (status == STATUS_BUFFER_OVERFLOW)
 805         {
 806             if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
 807             if (!(buf_ptr = HeapAlloc( GetProcessHeap(), 0, total_size )))
 808                 return ERROR_NOT_ENOUGH_MEMORY;
 809             info = (KEY_FULL_INFORMATION *)buf_ptr;
 810             status = NtQueryKey( hkey, KeyFullInformation, buf_ptr, total_size, &total_size );
 811         }
 812
 813         if (status) goto done;
 814
 815         RtlUnicodeToMultiByteSize( &len, (WCHAR *)(buf_ptr + info->ClassOffset), info->ClassLength);
 816         if (class_len)
 817         {
 818             if (len + 1 > *class_len) status = STATUS_BUFFER_OVERFLOW;
 819             *class_len = len;
 820         }
 821         if (class && !status)
 822         {
 823             RtlUnicodeToMultiByteN( class, len, NULL, (WCHAR *)(buf_ptr + info->ClassOffset),
 824                                     info->ClassLength );
 825             class[len] = 0;
 826         }
 827     }
 828     else status = STATUS_SUCCESS;
 829
 830     if (subkeys) *subkeys = info->SubKeys;
 831     if (max_subkey) *max_subkey = info->MaxNameLen;
 832     if (max_class) *max_class = info->MaxClassLen;
 833     if (values) *values = info->Values;
 834     if (max_value) *max_value = info->MaxValueNameLen;
 835     if (max_data) *max_data = info->MaxValueDataLen;
 836     if (modif) *modif = *(FILETIME *)&info->LastWriteTime;
 837
 838  done:
 839     if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
 840     return RtlNtStatusToDosError( status );
 841 }
 842
 843
 844 /******************************************************************************
 845  * RegCloseKey   [ADVAPI32.@]
 846  *
 847  * Close an open registry key.
 848  *
 849  * PARAMS
 850  *  hkey [I] Handle of key to close
 851  *
 852  * RETURNS
 853  *  Success: ERROR_SUCCESS
 854  *  Failure: Error code
 855  */
 856 DWORD WINAPI RegCloseKey( HKEY hkey )
 857 {
 858     if (!hkey) return ERROR_INVALID_HANDLE;
 859     if (hkey >= (HKEY)0x80000000) return ERROR_SUCCESS;
 860     return RtlNtStatusToDosError( NtClose( hkey ) );
 861 }
 862
 863
 864 /******************************************************************************
 865  * RegDeleteKeyW   [ADVAPI32.@]
 866  *
 867  * See RegDeleteKeyA.
 868  */
 869 DWORD WINAPI RegDeleteKeyW( HKEY hkey, LPCWSTR name )
 870 {
 871     DWORD ret;
 872     HKEY tmp;
 873
 874     if (!name) return ERROR_INVALID_PARAMETER;
 875
 876     if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
 877
 878     if (!*name)
 879     {
 880         ret = RtlNtStatusToDosError( NtDeleteKey( hkey ) );
 881     }
 882     else if (!(ret = RegOpenKeyExW( hkey, name, 0, KEY_ENUMERATE_SUB_KEYS, &tmp )))
 883     {
 884         ret = RtlNtStatusToDosError( NtDeleteKey( tmp ) );
 885         RegCloseKey( tmp );
 886     }
 887     TRACE("%s ret=%08lx\n", debugstr_w(name), ret);
 888     return ret;
 889 }
 890
 891
 892 /******************************************************************************
 893  * RegDeleteKeyA   [ADVAPI32.@]
 894  *
 895  * Delete a registry key.
 896  *
 897  * PARAMS
 898  *  hkey   [I] Handle to parent key containing the key to delete
 899  *  name   [I] Name of the key user hkey to delete
 900  *
 901  * RETURNS
 902  *  Success: ERROR_SUCCESS
 903  *  Failure: Error code
 904  */
 905 DWORD WINAPI RegDeleteKeyA( HKEY hkey, LPCSTR name )
 906 {
 907     DWORD ret;
 908     HKEY tmp;
 909
 910     if (!name) return ERROR_INVALID_PARAMETER;
 911
 912     if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
 913
 914     if (!*name)
 915     {
 916         ret = RtlNtStatusToDosError( NtDeleteKey( hkey ) );
 917     }
 918     else if (!(ret = RegOpenKeyExA( hkey, name, 0, KEY_ENUMERATE_SUB_KEYS, &tmp )))
 919     {
 920         if (!is_version_nt()) /* win95 does recursive key deletes */
 921         {
 922             CHAR name[MAX_PATH];
 923
 924             while(!RegEnumKeyA(tmp, 0, name, sizeof(name)))
 925             {
 926                 if(RegDeleteKeyA(tmp, name))  /* recurse */
 927                     break;
 928             }
 929         }
 930         ret = RtlNtStatusToDosError( NtDeleteKey( tmp ) );
 931         RegCloseKey( tmp );
 932     }
 933     TRACE("%s ret=%08lx\n", debugstr_a(name), ret);
 934     return ret;
 935 }
 936
 937
 938
 939 /******************************************************************************
 940  * RegSetValueExW   [ADVAPI32.@]
 941  *
 942  * Set the data and contents of a registry value.
 943  *
 944  * PARAMS
 945  *  hkey       [I] Handle of key to set value for
 946  *  name       [I] Name of value to set
 947  *  reserved   [I] Reserved, must be zero
 948  *  type       [I] Type of the value being set
 949  *  data       [I] The new contents of the value to set
 950  *  count      [I] Size of data
 951  *
 952  * RETURNS
 953  *  Success: ERROR_SUCCESS
 954  *  Failure: Error code
 955  */
 956 DWORD WINAPI RegSetValueExW( HKEY hkey, LPCWSTR name, DWORD reserved,
 957                              DWORD type, CONST BYTE *data, DWORD count )
 958 {
 959     UNICODE_STRING nameW;
 960
 961     /* no need for version check, not implemented on win9x anyway */
 962     if (count && is_string(type))
 963     {
 964         LPCWSTR str = (LPCWSTR)data;
 965         /* if user forgot to count terminating null, add it (yes NT does this) */
 966         if (str[count / sizeof(WCHAR) - 1] && !str[count / sizeof(WCHAR)])
 967             count += sizeof(WCHAR);
 968     }
 969     if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
 970
 971     RtlInitUnicodeString( &nameW, name );
 972     return RtlNtStatusToDosError( NtSetValueKey( hkey, &nameW, 0, type, data, count ) );
 973 }
 974
 975
 976 /******************************************************************************
 977  * RegSetValueExA   [ADVAPI32.@]
 978  *
 979  * see RegSetValueExW
 980  *
 981  * NOTES
 982  *  win95 does not care about count for REG_SZ and finds out the len by itself (js)
 983  *  NT does definitely care (aj)
 984  */
 985 DWORD WINAPI RegSetValueExA( HKEY hkey, LPCSTR name, DWORD reserved, DWORD type,
 986                              CONST BYTE *data, DWORD count )
 987 {
 988     ANSI_STRING nameA;
 989     WCHAR *dataW = NULL;
 990     NTSTATUS status;
 991
 992     if (!is_version_nt())  /* win95 */
 993     {
 994         if (type == REG_SZ)
 995         {
 996             if (!data) return ERROR_INVALID_PARAMETER;
 997             count = strlen(data) + 1;
 998         }
 999     }
1000     else if (count && is_string(type))
1001     {
1002         /* if user forgot to count terminating null, add it (yes NT does this) */
1003         if (data[count-1] && !data[count]) count++;
1004     }
1005
1006     if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
1007
1008     if (is_string( type )) /* need to convert to Unicode */
1009     {
1010         DWORD lenW;
1011         RtlMultiByteToUnicodeSize( &lenW, data, count );
1012         if (!(dataW = HeapAlloc( GetProcessHeap(), 0, lenW ))) return ERROR_OUTOFMEMORY;
1013         RtlMultiByteToUnicodeN( dataW, lenW, NULL, data, count );
1014         count = lenW;
1015         data = (BYTE *)dataW;
1016     }
1017
1018     RtlInitAnsiString( &nameA, name );
1019     if (!(status = RtlAnsiStringToUnicodeString( &NtCurrentTeb()->StaticUnicodeString,
1020                                                  &nameA, FALSE )))
1021     {
1022         status = NtSetValueKey( hkey, &NtCurrentTeb()->StaticUnicodeString, 0, type, data, count );
1023     }
1024     HeapFree( GetProcessHeap(), 0, dataW );
1025     return RtlNtStatusToDosError( status );
1026 }
1027
1028
1029 /******************************************************************************
1030  * RegSetValueW   [ADVAPI32.@]
1031  *
1032  * Sets the data for the default or unnamed value of a reg key.
1033  *
1034  * PARAMS
1035  *  hKey     [I] Handle to an open key.
1036  *  lpSubKey [I] Name of a subkey of hKey.
1037  *  dwType   [I] Type of information to store.
1038  *  lpData   [I] String that contains the data to set for the default value.
1039  *  cbData   [I] Size of lpData.
1040  *
1041  * RETURNS
1042  *  Success: ERROR_SUCCESS
1043  *  Failure: nonzero error code from Winerror.h
1044  */
1045 DWORD WINAPI RegSetValueW( HKEY hkey, LPCWSTR name, DWORD type, LPCWSTR data, DWORD count )
1046 {
1047     HKEY subkey = hkey;
1048     DWORD ret;
1049
1050     TRACE("(%p,%s,%ld,%s,%ld)\n", hkey, debugstr_w(name), type, debugstr_w(data), count );
1051
1052     if (type != REG_SZ) return ERROR_INVALID_PARAMETER;
1053
1054     if (name && name[0])  /* need to create the subkey */
1055     {
1056         if ((ret = RegCreateKeyW( hkey, name, &subkey )) != ERROR_SUCCESS) return ret;
1057     }
1058
1059     ret = RegSetValueExW( subkey, NULL, 0, REG_SZ, (const BYTE*)data,
1060                           (strlenW( data ) + 1) * sizeof(WCHAR) );
1061     if (subkey != hkey) RegCloseKey( subkey );
1062     return ret;
1063 }
1064
1065
1066 /******************************************************************************
1067  * RegSetValueA   [ADVAPI32.@]
1068  *
1069  * see RegSetValueW
1070  */
1071 DWORD WINAPI RegSetValueA( HKEY hkey, LPCSTR name, DWORD type, LPCSTR data, DWORD count )
1072 {
1073     HKEY subkey = hkey;
1074     DWORD ret;
1075
1076     TRACE("(%p,%s,%ld,%s,%ld)\n", hkey, debugstr_a(name), type, debugstr_a(data), count );
1077
1078     if (type != REG_SZ) return ERROR_INVALID_PARAMETER;
1079
1080     if (name && name[0])  /* need to create the subkey */
1081     {
1082         if ((ret = RegCreateKeyA( hkey, name, &subkey )) != ERROR_SUCCESS) return ret;
1083     }
1084     ret = RegSetValueExA( subkey, NULL, 0, REG_SZ, (const BYTE*)data, strlen(data)+1 );
1085     if (subkey != hkey) RegCloseKey( subkey );
1086     return ret;
1087 }
1088
1089
1090
1091 /******************************************************************************
1092  * RegQueryValueExW   [ADVAPI32.@]
1093  *
1094  * See RegQueryValueExA.
1095  */
1096 DWORD WINAPI RegQueryValueExW( HKEY hkey, LPCWSTR name, LPDWORD reserved, LPDWORD type,
1097                                LPBYTE data, LPDWORD count )
1098 {
1099     NTSTATUS status;
1100     UNICODE_STRING name_str;
1101     DWORD total_size;
1102     char buffer[256], *buf_ptr = buffer;
1103     KEY_VALUE_PARTIAL_INFORMATION *info = (KEY_VALUE_PARTIAL_INFORMATION *)buffer;
1104     static const int info_size = offsetof( KEY_VALUE_PARTIAL_INFORMATION, Data );
1105
1106     TRACE("(%p,%s,%p,%p,%p,%p=%ld)\n",
1107           hkey, debugstr_w(name), reserved, type, data, count,
1108           (count && data) ? *count : 0 );
1109
1110     if ((data && !count) || reserved) return ERROR_INVALID_PARAMETER;
1111     if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
1112
1113     RtlInitUnicodeString( &name_str, name );
1114
1115     if (data) total_size = min( sizeof(buffer), *count + info_size );
1116     else total_size = info_size;
1117
1118     status = NtQueryValueKey( hkey, &name_str, KeyValuePartialInformation,
1119                               buffer, total_size, &total_size );
1120     if (status && status != STATUS_BUFFER_OVERFLOW) goto done;
1121
1122     if (data)
1123     {
1124         /* retry with a dynamically allocated buffer */
1125         while (status == STATUS_BUFFER_OVERFLOW && total_size - info_size <= *count)
1126         {
1127             if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
1128             if (!(buf_ptr = HeapAlloc( GetProcessHeap(), 0, total_size )))
1129                 return ERROR_NOT_ENOUGH_MEMORY;
1130             info = (KEY_VALUE_PARTIAL_INFORMATION *)buf_ptr;
1131             status = NtQueryValueKey( hkey, &name_str, KeyValuePartialInformation,
1132                                       buf_ptr, total_size, &total_size );
1133         }
1134
1135         if (!status)
1136         {
1137             memcpy( data, buf_ptr + info_size, total_size - info_size );
1138             /* if the type is REG_SZ and data is not 0-terminated
1139              * and there is enough space in the buffer NT appends a \0 */
1140             if (total_size - info_size <= *count-sizeof(WCHAR) && is_string(info->Type))
1141             {
1142                 WCHAR *ptr = (WCHAR *)(data + total_size - info_size);
1143                 if (ptr > (WCHAR *)data && ptr[-1]) *ptr = 0;
1144             }
1145         }
1146         else if (status != STATUS_BUFFER_OVERFLOW) goto done;
1147     }
1148     else status = STATUS_SUCCESS;
1149
1150     if (type) *type = info->Type;
1151     if (count) *count = total_size - info_size;
1152
1153  done:
1154     if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
1155     return RtlNtStatusToDosError(status);
1156 }
1157
1158
1159 /******************************************************************************
1160  * RegQueryValueExA   [ADVAPI32.@]
1161  *
1162  * Get the type and contents of a specified value under with a key.
1163  *
1164  * PARAMS
1165  *  hkey      [I]   Handle of the key to query
1166  *  name      [I]   Name of value under hkey to query
1167  *  reserved  [I]   Reserved - must be NULL
1168  *  type      [O]   Destination for the value type, or NULL if not required
1169  *  data      [O]   Destination for the values contents, or NULL if not required
1170  *  count     [I/O] Size of data, updated with the number of bytes returned
1171  *
1172  * RETURNS
1173  *  Success: ERROR_SUCCESS. *count is updated with the number of bytes copied to data.
1174  *  Failure: ERROR_INVALID_HANDLE, if hkey is invalid.
1175  *           ERROR_INVALID_PARAMETER, if any other parameter is invalid.
1176  *           ERROR_MORE_DATA, if on input *count is too small to hold the contents.
1177  *
1178  * NOTES
1179  *   MSDN states that if data is too small it is partially filled. In reality
1180  *   it remains untouched.
1181  */
1182 DWORD WINAPI RegQueryValueExA( HKEY hkey, LPCSTR name, LPDWORD reserved, LPDWORD type,
1183                                LPBYTE data, LPDWORD count )
1184 {
1185     NTSTATUS status;
1186     ANSI_STRING nameA;
1187     DWORD total_size;
1188     char buffer[256], *buf_ptr = buffer;
1189     KEY_VALUE_PARTIAL_INFORMATION *info = (KEY_VALUE_PARTIAL_INFORMATION *)buffer;
1190     static const int info_size = offsetof( KEY_VALUE_PARTIAL_INFORMATION, Data );
1191
1192     TRACE("(%p,%s,%p,%p,%p,%p=%ld)\n",
1193           hkey, debugstr_a(name), reserved, type, data, count, count ? *count : 0 );
1194
1195     if ((data && !count) || reserved) return ERROR_INVALID_PARAMETER;
1196     if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
1197
1198     RtlInitAnsiString( &nameA, name );
1199     if ((status = RtlAnsiStringToUnicodeString( &NtCurrentTeb()->StaticUnicodeString,
1200                                                 &nameA, FALSE )))
1201         return RtlNtStatusToDosError(status);
1202
1203     status = NtQueryValueKey( hkey, &NtCurrentTeb()->StaticUnicodeString,
1204                               KeyValuePartialInformation, buffer, sizeof(buffer), &total_size );
1205     if (status && status != STATUS_BUFFER_OVERFLOW) goto done;
1206
1207     /* we need to fetch the contents for a string type even if not requested,
1208      * because we need to compute the length of the ASCII string. */
1209     if (data || is_string(info->Type))
1210     {
1211         /* retry with a dynamically allocated buffer */
1212         while (status == STATUS_BUFFER_OVERFLOW)
1213         {
1214             if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
1215             if (!(buf_ptr = HeapAlloc( GetProcessHeap(), 0, total_size )))
1216             {
1217                 status = STATUS_NO_MEMORY;
1218                 goto done;
1219             }
1220             info = (KEY_VALUE_PARTIAL_INFORMATION *)buf_ptr;
1221             status = NtQueryValueKey( hkey, &NtCurrentTeb()->StaticUnicodeString,
1222                                     KeyValuePartialInformation, buf_ptr, total_size, &total_size );
1223         }
1224
1225         if (status) goto done;
1226
1227         if (is_string(info->Type))
1228         {
1229             DWORD len;
1230
1231             RtlUnicodeToMultiByteSize( &len, (WCHAR *)(buf_ptr + info_size),
1232                                        total_size - info_size );
1233             if (data && len)
1234             {
1235                 if (len > *count) status = STATUS_BUFFER_OVERFLOW;
1236                 else
1237                 {
1238                     RtlUnicodeToMultiByteN( data, len, NULL, (WCHAR *)(buf_ptr + info_size),
1239                                             total_size - info_size );
1240                     /* if the type is REG_SZ and data is not 0-terminated
1241                      * and there is enough space in the buffer NT appends a \0 */
1242                     if (len < *count && data[len-1]) data[len] = 0;
1243                 }
1244             }
1245             total_size = len + info_size;
1246         }
1247         else if (data)
1248         {
1249             if (total_size - info_size > *count) status = STATUS_BUFFER_OVERFLOW;
1250             else memcpy( data, buf_ptr + info_size, total_size - info_size );
1251         }
1252     }
1253     else status = STATUS_SUCCESS;
1254
1255     if (type) *type = info->Type;
1256     if (count) *count = total_size - info_size;
1257
1258  done:
1259     if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
1260     return RtlNtStatusToDosError(status);
1261 }
1262
1263
1264 /******************************************************************************
1265  * RegQueryValueW   [ADVAPI32.@]
1266  *
1267  * Retrieves the data associated with the default or unnamed value of a key.
1268  *
1269  * PARAMS
1270  *  hkey      [I] Handle to an open key.
1271  *  name      [I] Name of the subkey of hKey.
1272  *  data      [O] Receives the string associated with the default value
1273  *                of the key.
1274  *  count     [I/O] Size of lpValue in bytes.
1275  *
1276  *  RETURNS
1277  *   Success: ERROR_SUCCESS
1278  *   Failure: nonzero error code from Winerror.h
1279  */
1280 DWORD WINAPI RegQueryValueW( HKEY hkey, LPCWSTR name, LPWSTR data, LPLONG count )
1281 {
1282     DWORD ret;
1283     HKEY subkey = hkey;
1284
1285     TRACE("(%p,%s,%p,%ld)\n", hkey, debugstr_w(name), data, count ? *count : 0 );
1286
1287     if (name && name[0])
1288     {
1289         if ((ret = RegOpenKeyW( hkey, name, &subkey )) != ERROR_SUCCESS) return ret;
1290     }
1291     ret = RegQueryValueExW( subkey, NULL, NULL, NULL, (LPBYTE)data, count );
1292     if (subkey != hkey) RegCloseKey( subkey );
1293     if (ret == ERROR_FILE_NOT_FOUND)
1294     {
1295         /* return empty string if default value not found */
1296         if (data) *data = 0;
1297         if (count) *count = sizeof(WCHAR);
1298         ret = ERROR_SUCCESS;
1299     }
1300     return ret;
1301 }
1302
1303
1304 /******************************************************************************
1305  * RegQueryValueA   [ADVAPI32.@]
1306  *
1307  * see RegQueryValueW
1308  */
1309 DWORD WINAPI RegQueryValueA( HKEY hkey, LPCSTR name, LPSTR data, LPLONG count )
1310 {
1311     DWORD ret;
1312     HKEY subkey = hkey;
1313
1314     TRACE("(%p,%s,%p,%ld)\n", hkey, debugstr_a(name), data, count ? *count : 0 );
1315
1316     if (name && name[0])
1317     {
1318         if ((ret = RegOpenKeyA( hkey, name, &subkey )) != ERROR_SUCCESS) return ret;
1319     }
1320     ret = RegQueryValueExA( subkey, NULL, NULL, NULL, (LPBYTE)data, count );
1321     if (subkey != hkey) RegCloseKey( subkey );
1322     if (ret == ERROR_FILE_NOT_FOUND)
1323     {
1324         /* return empty string if default value not found */
1325         if (data) *data = 0;
1326         if (count) *count = 1;
1327         ret = ERROR_SUCCESS;
1328     }
1329     return ret;
1330 }
1331
1332
1333 /******************************************************************************
1334  * RegEnumValueW   [ADVAPI32.@]
1335  *
1336  * PARAMS
1337  *  hkey       [I] Handle to key to query
1338  *  index      [I] Index of value to query
1339  *  value      [O] Value string
1340  *  val_count  [I/O] Size of value buffer (in wchars)
1341  *  reserved   [I] Reserved
1342  *  type       [O] Type code
1343  *  data       [O] Value data
1344  *  count      [I/O] Size of data buffer (in bytes)
1345  *
1346  * RETURNS
1347  *  Success: ERROR_SUCCESS
1348  *  Failure: nonzero error code from Winerror.h
1349  */
1350
1351 DWORD WINAPI RegEnumValueW( HKEY hkey, DWORD index, LPWSTR value, LPDWORD val_count,
1352                             LPDWORD reserved, LPDWORD type, LPBYTE data, LPDWORD count )
1353 {
1354     NTSTATUS status;
1355     DWORD total_size;
1356     char buffer[256], *buf_ptr = buffer;
1357     KEY_VALUE_FULL_INFORMATION *info = (KEY_VALUE_FULL_INFORMATION *)buffer;
1358     static const int info_size = offsetof( KEY_VALUE_FULL_INFORMATION, Name );
1359
1360     TRACE("(%p,%ld,%p,%p,%p,%p,%p,%p)\n",
1361           hkey, index, value, val_count, reserved, type, data, count );
1362
1363     /* NT only checks count, not val_count */
1364     if ((data && !count) || reserved) return ERROR_INVALID_PARAMETER;
1365     if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
1366
1367     total_size = info_size + (MAX_PATH + 1) * sizeof(WCHAR);
1368     if (data) total_size += *count;
1369     total_size = min( sizeof(buffer), total_size );
1370
1371     status = NtEnumerateValueKey( hkey, index, KeyValueFullInformation,
1372                                   buffer, total_size, &total_size );
1373     if (status && status != STATUS_BUFFER_OVERFLOW) goto done;
1374
1375     if (value || data)
1376     {
1377         /* retry with a dynamically allocated buffer */
1378         while (status == STATUS_BUFFER_OVERFLOW)
1379         {
1380             if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
1381             if (!(buf_ptr = HeapAlloc( GetProcessHeap(), 0, total_size )))
1382                 return ERROR_NOT_ENOUGH_MEMORY;
1383             info = (KEY_VALUE_FULL_INFORMATION *)buf_ptr;
1384             status = NtEnumerateValueKey( hkey, index, KeyValueFullInformation,
1385                                           buf_ptr, total_size, &total_size );
1386         }
1387
1388         if (status) goto done;
1389
1390         if (value)
1391         {
1392             if (info->NameLength/sizeof(WCHAR) >= *val_count)
1393             {
1394                 status = STATUS_BUFFER_OVERFLOW;
1395                 goto overflow;
1396             }
1397             memcpy( value, info->Name, info->NameLength );
1398             *val_count = info->NameLength / sizeof(WCHAR);
1399             value[*val_count] = 0;
1400         }
1401
1402         if (data)
1403         {
1404             if (total_size - info->DataOffset > *count)
1405             {
1406                 status = STATUS_BUFFER_OVERFLOW;
1407                 goto overflow;
1408             }
1409             memcpy( data, buf_ptr + info->DataOffset, total_size - info->DataOffset );
1410             if (total_size - info->DataOffset <= *count-sizeof(WCHAR) && is_string(info->Type))
1411             {
1412                 /* if the type is REG_SZ and data is not 0-terminated
1413                  * and there is enough space in the buffer NT appends a \0 */
1414                 WCHAR *ptr = (WCHAR *)(data + total_size - info->DataOffset);
1415                 if (ptr > (WCHAR *)data && ptr[-1]) *ptr = 0;
1416             }
1417         }
1418     }
1419     else status = STATUS_SUCCESS;
1420
1421  overflow:
1422     if (type) *type = info->Type;
1423     if (count) *count = info->DataLength;
1424
1425  done:
1426     if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
1427     return RtlNtStatusToDosError(status);
1428 }
1429
1430
1431 /******************************************************************************
1432  * RegEnumValueA   [ADVAPI32.@]
1433  *
1434  * see RegEnumValueW
1435  */
1436 DWORD WINAPI RegEnumValueA( HKEY hkey, DWORD index, LPSTR value, LPDWORD val_count,
1437                             LPDWORD reserved, LPDWORD type, LPBYTE data, LPDWORD count )
1438 {
1439     NTSTATUS status;
1440     DWORD total_size;
1441     char buffer[256], *buf_ptr = buffer;
1442     KEY_VALUE_FULL_INFORMATION *info = (KEY_VALUE_FULL_INFORMATION *)buffer;
1443     static const int info_size = offsetof( KEY_VALUE_FULL_INFORMATION, Name );
1444
1445     TRACE("(%p,%ld,%p,%p,%p,%p,%p,%p)\n",
1446           hkey, index, value, val_count, reserved, type, data, count );
1447
1448     /* NT only checks count, not val_count */
1449     if ((data && !count) || reserved) return ERROR_INVALID_PARAMETER;
1450     if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
1451
1452     total_size = info_size + (MAX_PATH + 1) * sizeof(WCHAR);
1453     if (data) total_size += *count;
1454     total_size = min( sizeof(buffer), total_size );
1455
1456     status = NtEnumerateValueKey( hkey, index, KeyValueFullInformation,
1457                                   buffer, total_size, &total_size );
1458     if (status && status != STATUS_BUFFER_OVERFLOW) goto done;
1459
1460     /* we need to fetch the contents for a string type even if not requested,
1461      * because we need to compute the length of the ASCII string. */
1462     if (value || data || is_string(info->Type))
1463     {
1464         /* retry with a dynamically allocated buffer */
1465         while (status == STATUS_BUFFER_OVERFLOW)
1466         {
1467             if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
1468             if (!(buf_ptr = HeapAlloc( GetProcessHeap(), 0, total_size )))
1469                 return ERROR_NOT_ENOUGH_MEMORY;
1470             info = (KEY_VALUE_FULL_INFORMATION *)buf_ptr;
1471             status = NtEnumerateValueKey( hkey, index, KeyValueFullInformation,
1472                                           buf_ptr, total_size, &total_size );
1473         }
1474
1475         if (status) goto done;
1476
1477         if (is_string(info->Type))
1478         {
1479             DWORD len;
1480             RtlUnicodeToMultiByteSize( &len, (WCHAR *)(buf_ptr + info->DataOffset),
1481                                        total_size - info->DataOffset );
1482             if (data && len)
1483             {
1484                 if (len > *count) status = STATUS_BUFFER_OVERFLOW;
1485                 else
1486                 {
1487                     RtlUnicodeToMultiByteN( data, len, NULL, (WCHAR *)(buf_ptr + info->DataOffset),
1488                                             total_size - info->DataOffset );
1489                     /* if the type is REG_SZ and data is not 0-terminated
1490                      * and there is enough space in the buffer NT appends a \0 */
1491                     if (len < *count && data[len-1]) data[len] = 0;
1492                 }
1493             }
1494             info->DataLength = len;
1495         }
1496         else if (data)
1497         {
1498             if (total_size - info->DataOffset > *count) status = STATUS_BUFFER_OVERFLOW;
1499             else memcpy( data, buf_ptr + info->DataOffset, total_size - info->DataOffset );
1500         }
1501
1502         if (value && !status)
1503         {
1504             DWORD len;
1505
1506             RtlUnicodeToMultiByteSize( &len, info->Name, info->NameLength );
1507             if (len >= *val_count)
1508             {
1509                 status = STATUS_BUFFER_OVERFLOW;
1510                 if (*val_count)
1511                 {
1512                     len = *val_count - 1;
1513                     RtlUnicodeToMultiByteN( value, len, NULL, info->Name, info->NameLength );
1514                     value[len] = 0;
1515                 }
1516             }
1517             else
1518             {
1519                 RtlUnicodeToMultiByteN( value, len, NULL, info->Name, info->NameLength );
1520                 value[len] = 0;
1521                 *val_count = len;
1522             }
1523         }
1524     }
1525     else status = STATUS_SUCCESS;
1526
1527     if (type) *type = info->Type;
1528     if (count) *count = info->DataLength;
1529
1530  done:
1531     if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
1532     return RtlNtStatusToDosError(status);
1533 }
1534
1535
1536
1537 /******************************************************************************
1538  * RegDeleteValueW   [ADVAPI32.@]
1539  *
1540  * See RegDeleteValueA.
1541  */
1542 DWORD WINAPI RegDeleteValueW( HKEY hkey, LPCWSTR name )
1543 {
1544     UNICODE_STRING nameW;
1545
1546     if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
1547
1548     RtlInitUnicodeString( &nameW, name );
1549     return RtlNtStatusToDosError( NtDeleteValueKey( hkey, &nameW ) );
1550 }
1551
1552
1553 /******************************************************************************
1554  * RegDeleteValueA   [ADVAPI32.@]
1555  *
1556  * Delete a value from the registry.
1557  *
1558  * PARAMS
1559  *  hkey [I] Registry handle of the key holding the value
1560  *  name [I] Name of the value under hkey to delete
1561  *
1562  * RETURNS
1563  *  Success: ERROR_SUCCESS
1564  *  Failure: nonzero error code from Winerror.h
1565  */
1566 DWORD WINAPI RegDeleteValueA( HKEY hkey, LPCSTR name )
1567 {
1568     STRING nameA;
1569     NTSTATUS status;
1570
1571     if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
1572
1573     RtlInitAnsiString( &nameA, name );
1574     if (!(status = RtlAnsiStringToUnicodeString( &NtCurrentTeb()->StaticUnicodeString,
1575                                                  &nameA, FALSE )))
1576         status = NtDeleteValueKey( hkey, &NtCurrentTeb()->StaticUnicodeString );
1577     return RtlNtStatusToDosError( status );
1578 }
1579
1580
1581 /******************************************************************************
1582  * RegLoadKeyW   [ADVAPI32.@]
1583  *
1584  * PARAMS
1585  *  hkey      [I] Handle of open key
1586  *  subkey    [I] Address of name of subkey
1587  *  filename  [I] Address of filename for registry information
1588  *
1589  * RETURNS
1590  *  Success: ERROR_SUCCES
1591  *  Failure: nonzero error code from Winerror.h
1592  */
1593 LONG WINAPI RegLoadKeyW( HKEY hkey, LPCWSTR subkey, LPCWSTR filename )
1594 {
1595     OBJECT_ATTRIBUTES destkey, file;
1596     UNICODE_STRING subkeyW, filenameW;
1597
1598     if (!(hkey = get_special_root_hkey(hkey))) return ERROR_INVALID_HANDLE;
1599
1600     destkey.Length = sizeof(destkey);
1601     destkey.RootDirectory = hkey;               /* root key: HKLM or HKU */
1602     destkey.ObjectName = &subkeyW;              /* name of the key */
1603     destkey.Attributes = 0;
1604     destkey.SecurityDescriptor = NULL;
1605     destkey.SecurityQualityOfService = NULL;
1606     RtlInitUnicodeString(&subkeyW, subkey);
1607
1608     file.Length = sizeof(file);
1609     file.RootDirectory = NULL;
1610     file.ObjectName = &filenameW;               /* file containing the hive */
1611     file.Attributes = OBJ_CASE_INSENSITIVE;
1612     file.SecurityDescriptor = NULL;
1613     file.SecurityQualityOfService = NULL;
1614     RtlDosPathNameToNtPathName_U(filename, &filenameW, NULL, NULL);
1615
1616     return RtlNtStatusToDosError( NtLoadKey(&destkey, &file) );
1617 }
1618
1619
1620 /******************************************************************************
1621  * RegLoadKeyA   [ADVAPI32.@]
1622  *
1623  * see RegLoadKeyW
1624  */
1625 LONG WINAPI RegLoadKeyA( HKEY hkey, LPCSTR subkey, LPCSTR filename )
1626 {
1627     UNICODE_STRING subkeyW, filenameW;
1628     STRING subkeyA, filenameA;
1629     NTSTATUS status;
1630
1631     RtlInitAnsiString(&subkeyA, subkey);
1632     RtlInitAnsiString(&filenameA, filename);
1633
1634     if ((status = RtlAnsiStringToUnicodeString(&subkeyW, &subkeyA, TRUE)))
1635         return RtlNtStatusToDosError(status);
1636
1637     if ((status = RtlAnsiStringToUnicodeString(&filenameW, &filenameA, TRUE)))
1638         return RtlNtStatusToDosError(status);
1639
1640     return RegLoadKeyW(hkey, subkeyW.Buffer, filenameW.Buffer);
1641 }
1642
1643
1644 /******************************************************************************
1645  * RegSaveKeyW   [ADVAPI32.@]
1646  *
1647  * PARAMS
1648  *  hkey   [I] Handle of key where save begins
1649  *  lpFile [I] Address of filename to save to
1650  *  sa     [I] Address of security structure
1651  *
1652  * RETURNS
1653  *  Success: ERROR_SUCCESS
1654  *  Failure: nonzero error code from Winerror.h
1655  */
1656 LONG WINAPI RegSaveKeyW( HKEY hkey, LPCWSTR file, LPSECURITY_ATTRIBUTES sa )
1657 {
1658     static const WCHAR format[] =
1659         {'r','e','g','%','0','4','x','.','t','m','p',0};
1660     WCHAR buffer[MAX_PATH];
1661     int count = 0;
1662     LPWSTR nameW;
1663     DWORD ret, err;
1664     HANDLE handle;
1665
1666     TRACE( "(%p,%s,%p)\n", hkey, debugstr_w(file), sa );
1667
1668     if (!file || !*file) return ERROR_INVALID_PARAMETER;
1669     if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
1670
1671     err = GetLastError();
1672     GetFullPathNameW( file, sizeof(buffer)/sizeof(WCHAR), buffer, &nameW );
1673
1674     for (;;)
1675     {
1676         snprintfW( nameW, 16, format, count++ );
1677         handle = CreateFileW( buffer, GENERIC_WRITE, 0, NULL,
1678                             CREATE_NEW, FILE_ATTRIBUTE_NORMAL, 0 );
1679         if (handle != INVALID_HANDLE_VALUE) break;
1680         if ((ret = GetLastError()) != ERROR_ALREADY_EXISTS) goto done;
1681
1682         /* Something gone haywire ? Please report if this happens abnormally */
1683         if (count >= 100)
1684             MESSAGE("Wow, we are already fiddling with a temp file %s with an ordinal as high as %d !\nYou might want to delete all corresponding temp files in that directory.\n", debugstr_w(buffer), count);
1685     }
1686
1687     ret = RtlNtStatusToDosError(NtSaveKey(hkey, handle));
1688
1689     CloseHandle( handle );
1690     if (!ret)
1691     {
1692         if (!MoveFileExW( buffer, file, MOVEFILE_REPLACE_EXISTING ))
1693         {
1694             ERR( "Failed to move %s to %s\n", debugstr_w(buffer),
1695                 debugstr_w(file) );
1696             ret = GetLastError();
1697         }
1698     }
1699     if (ret) DeleteFileW( buffer );
1700
1701 done:
1702     SetLastError( err );  /* restore last error code */
1703     return ret;
1704 }
1705
1706
1707 /******************************************************************************
1708  * RegSaveKeyA  [ADVAPI32.@]
1709  *
1710  * see RegSaveKeyW
1711  */
1712 LONG WINAPI RegSaveKeyA( HKEY hkey, LPCSTR file, LPSECURITY_ATTRIBUTES sa )
1713 {
1714     UNICODE_STRING *fileW = &NtCurrentTeb()->StaticUnicodeString;
1715     NTSTATUS status;
1716     STRING fileA;
1717
1718     RtlInitAnsiString(&fileA, file);
1719     if ((status = RtlAnsiStringToUnicodeString(fileW, &fileA, FALSE)))
1720         return RtlNtStatusToDosError( status );
1721     return RegSaveKeyW(hkey, fileW->Buffer, sa);
1722 }
1723
1724
1725 /******************************************************************************
1726  * RegRestoreKeyW [ADVAPI32.@]
1727  *
1728  * PARAMS
1729  *  hkey    [I] Handle of key where restore begins
1730  *  lpFile  [I] Address of filename containing saved tree
1731  *  dwFlags [I] Optional flags
1732  *
1733  * RETURNS
1734  *  Success: ERROR_SUCCESS
1735  *  Failure: nonzero error code from Winerror.h
1736  */
1737 LONG WINAPI RegRestoreKeyW( HKEY hkey, LPCWSTR lpFile, DWORD dwFlags )
1738 {
1739     TRACE("(%p,%s,%ld)\n",hkey,debugstr_w(lpFile),dwFlags);
1740
1741     /* It seems to do this check before the hkey check */
1742     if (!lpFile || !*lpFile)
1743         return ERROR_INVALID_PARAMETER;
1744
1745     FIXME("(%p,%s,%ld): stub\n",hkey,debugstr_w(lpFile),dwFlags);
1746
1747     /* Check for file existence */
1748
1749     return ERROR_SUCCESS;
1750 }
1751
1752
1753 /******************************************************************************
1754  * RegRestoreKeyA [ADVAPI32.@]
1755  *
1756  * see RegRestoreKeyW
1757  */
1758 LONG WINAPI RegRestoreKeyA( HKEY hkey, LPCSTR lpFile, DWORD dwFlags )
1759 {
1760     UNICODE_STRING lpFileW;
1761     LONG ret;
1762
1763     RtlCreateUnicodeStringFromAsciiz( &lpFileW, lpFile );
1764     ret = RegRestoreKeyW( hkey, lpFileW.Buffer, dwFlags );
1765     RtlFreeUnicodeString( &lpFileW );
1766     return ret;
1767 }
1768
1769
1770 /******************************************************************************
1771  * RegUnLoadKeyW [ADVAPI32.@]
1772  *
1773  * PARAMS
1774  *  hkey     [I] Handle of open key
1775  *  lpSubKey [I] Address of name of subkey to unload
1776  *
1777  * RETURNS
1778  *  Success: ERROR_SUCCESS
1779  *  Failure: nonzero error code from Winerror.h
1780  */
1781 LONG WINAPI RegUnLoadKeyW( HKEY hkey, LPCWSTR lpSubKey )
1782 {
1783     DWORD ret;
1784     HKEY shkey;
1785
1786     TRACE("(%p,%s)\n",hkey, debugstr_w(lpSubKey));
1787
1788     ret = RegOpenKeyW(hkey,lpSubKey,&shkey);
1789     if( ret )
1790         return ERROR_INVALID_PARAMETER;
1791
1792     ret = RtlNtStatusToDosError(NtUnloadKey(shkey));
1793
1794     RegCloseKey(shkey);
1795
1796     return ret;
1797 }
1798
1799
1800 /******************************************************************************
1801  * RegUnLoadKeyA [ADVAPI32.@]
1802  *
1803  * see RegUnLoadKeyW
1804  */
1805 LONG WINAPI RegUnLoadKeyA( HKEY hkey, LPCSTR lpSubKey )
1806 {
1807     UNICODE_STRING lpSubKeyW;
1808     LONG ret;
1809
1810     RtlCreateUnicodeStringFromAsciiz( &lpSubKeyW, lpSubKey );
1811     ret = RegUnLoadKeyW( hkey, lpSubKeyW.Buffer );
1812     RtlFreeUnicodeString( &lpSubKeyW );
1813     return ret;
1814 }
1815
1816
1817 /******************************************************************************
1818  * RegReplaceKeyW [ADVAPI32.@]
1819  *
1820  * PARAMS
1821  *  hkey      [I] Handle of open key
1822  *  lpSubKey  [I] Address of name of subkey
1823  *  lpNewFile [I] Address of filename for file with new data
1824  *  lpOldFile [I] Address of filename for backup file
1825  *
1826  * RETURNS
1827  *  Success: ERROR_SUCCESS
1828  *  Failure: nonzero error code from Winerror.h
1829  */
1830 LONG WINAPI RegReplaceKeyW( HKEY hkey, LPCWSTR lpSubKey, LPCWSTR lpNewFile,
1831                               LPCWSTR lpOldFile )
1832 {
1833     FIXME("(%p,%s,%s,%s): stub\n", hkey, debugstr_w(lpSubKey),
1834           debugstr_w(lpNewFile),debugstr_w(lpOldFile));
1835     return ERROR_SUCCESS;
1836 }
1837
1838
1839 /******************************************************************************
1840  * RegReplaceKeyA [ADVAPI32.@]
1841  *
1842  * see RegReplaceKeyW
1843  */
1844 LONG WINAPI RegReplaceKeyA( HKEY hkey, LPCSTR lpSubKey, LPCSTR lpNewFile,
1845                               LPCSTR lpOldFile )
1846 {
1847     UNICODE_STRING lpSubKeyW;
1848     UNICODE_STRING lpNewFileW;
1849     UNICODE_STRING lpOldFileW;
1850     LONG ret;
1851
1852     RtlCreateUnicodeStringFromAsciiz( &lpSubKeyW, lpSubKey );
1853     RtlCreateUnicodeStringFromAsciiz( &lpOldFileW, lpOldFile );
1854     RtlCreateUnicodeStringFromAsciiz( &lpNewFileW, lpNewFile );
1855     ret = RegReplaceKeyW( hkey, lpSubKeyW.Buffer, lpNewFileW.Buffer, lpOldFileW.Buffer );
1856     RtlFreeUnicodeString( &lpOldFileW );
1857     RtlFreeUnicodeString( &lpNewFileW );
1858     RtlFreeUnicodeString( &lpSubKeyW );
1859     return ret;
1860 }
1861
1862
1863 /******************************************************************************
1864  * RegSetKeySecurity [ADVAPI32.@]
1865  *
1866  * PARAMS
1867  *  hkey          [I] Open handle of key to set
1868  *  SecurityInfo  [I] Descriptor contents
1869  *  pSecurityDesc [I] Address of descriptor for key
1870  *
1871  * RETURNS
1872  *  Success: ERROR_SUCCESS
1873  *  Failure: nonzero error code from Winerror.h
1874  */
1875 LONG WINAPI RegSetKeySecurity( HKEY hkey, SECURITY_INFORMATION SecurityInfo,
1876                                PSECURITY_DESCRIPTOR pSecurityDesc )
1877 {
1878     TRACE("(%p,%ld,%p)\n",hkey,SecurityInfo,pSecurityDesc);
1879
1880     /* It seems to perform this check before the hkey check */
1881     if ((SecurityInfo & OWNER_SECURITY_INFORMATION) ||
1882         (SecurityInfo & GROUP_SECURITY_INFORMATION) ||
1883         (SecurityInfo & DACL_SECURITY_INFORMATION) ||
1884         (SecurityInfo & SACL_SECURITY_INFORMATION)) {
1885         /* Param OK */
1886     } else
1887         return ERROR_INVALID_PARAMETER;
1888
1889     if (!pSecurityDesc)
1890         return ERROR_INVALID_PARAMETER;
1891
1892     FIXME(":(%p,%ld,%p): stub\n",hkey,SecurityInfo,pSecurityDesc);
1893
1894     return ERROR_SUCCESS;
1895 }
1896
1897
1898 /******************************************************************************
1899  * RegGetKeySecurity [ADVAPI32.@]
1900  *
1901  * Get a copy of the security descriptor for a given registry key.
1902  *
1903  * PARAMS
1904  *  hkey                   [I]   Open handle of key to set
1905  *  SecurityInformation    [I]   Descriptor contents
1906  *  pSecurityDescriptor    [O]   Address of descriptor for key
1907  *  lpcbSecurityDescriptor [I/O] Address of size of buffer and description
1908  *
1909  * RETURNS
1910  *  Success: ERROR_SUCCESS
1911  *  Failure: Error code
1912  */
1913 LONG WINAPI RegGetKeySecurity( HKEY hkey, SECURITY_INFORMATION SecurityInformation,
1914                                PSECURITY_DESCRIPTOR pSecurityDescriptor,
1915                                LPDWORD lpcbSecurityDescriptor )
1916 {
1917     TRACE("(%p,%ld,%p,%ld)\n",hkey,SecurityInformation,pSecurityDescriptor,
1918           lpcbSecurityDescriptor?*lpcbSecurityDescriptor:0);
1919
1920     /* FIXME: Check for valid SecurityInformation values */
1921
1922     if (*lpcbSecurityDescriptor < sizeof(SECURITY_DESCRIPTOR))
1923         return ERROR_INSUFFICIENT_BUFFER;
1924
1925     FIXME("(%p,%ld,%p,%ld): stub\n",hkey,SecurityInformation,
1926           pSecurityDescriptor,lpcbSecurityDescriptor?*lpcbSecurityDescriptor:0);
1927
1928     /* Do not leave security descriptor filled with garbage */
1929     RtlCreateSecurityDescriptor(pSecurityDescriptor, SECURITY_DESCRIPTOR_REVISION);
1930
1931     return ERROR_SUCCESS;
1932 }
1933
1934
1935 /******************************************************************************
1936  * RegFlushKey [ADVAPI32.@]
1937  *
1938  * Immediately write a registry key to registry.
1939  *
1940  * PARAMS
1941  *  hkey [I] Handle of key to write
1942  *
1943  * RETURNS
1944  *  Success: ERROR_SUCCESS
1945  *  Failure: Error code
1946  */
1947 DWORD WINAPI RegFlushKey( HKEY hkey )
1948 {
1949     hkey = get_special_root_hkey( hkey );
1950     if (!hkey) return ERROR_INVALID_HANDLE;
1951
1952     return RtlNtStatusToDosError( NtFlushKey( hkey ) );
1953 }
1954
1955
1956 /******************************************************************************
1957  * RegConnectRegistryW [ADVAPI32.@]
1958  *
1959  * PARAMS
1960  *  lpMachineName [I] Address of name of remote computer
1961  *  hHey          [I] Predefined registry handle
1962  *  phkResult     [I] Address of buffer for remote registry handle
1963  *
1964  * RETURNS
1965  *  Success: ERROR_SUCCESS
1966  *  Failure: nonzero error code from Winerror.h
1967  */
1968 LONG WINAPI RegConnectRegistryW( LPCWSTR lpMachineName, HKEY hKey,
1969                                    PHKEY phkResult )
1970 {
1971     LONG ret;
1972
1973     TRACE("(%s,%p,%p): stub\n",debugstr_w(lpMachineName),hKey,phkResult);
1974
1975     if (!lpMachineName || !*lpMachineName) {
1976         /* Use the local machine name */
1977         ret = RegOpenKeyW( hKey, NULL, phkResult );
1978     }
1979     else if (lpMachineName[0] != '\\' || lpMachineName[1] != '\\')
1980         ret = ERROR_BAD_NETPATH;
1981     else
1982     {
1983         WCHAR compName[MAX_COMPUTERNAME_LENGTH + 1];
1984         DWORD len = sizeof(compName) / sizeof(WCHAR);
1985
1986         if (GetComputerNameW(compName, &len))
1987         {
1988             if (!strcmpiW(lpMachineName + 2, compName))
1989                 ret = RegOpenKeyW(hKey, NULL, phkResult);
1990             else
1991             {
1992                 FIXME("Cannot connect to %s\n",debugstr_w(lpMachineName));
1993                 ret = ERROR_BAD_NETPATH;
1994             }
1995         }
1996         else
1997             ret = GetLastError();
1998     }
1999     return ret;
2000 }
2001
2002
2003 /******************************************************************************
2004  * RegConnectRegistryA [ADVAPI32.@]
2005  *
2006  * see RegConnectRegistryW
2007  */
2008 LONG WINAPI RegConnectRegistryA( LPCSTR machine, HKEY hkey, PHKEY reskey )
2009 {
2010     UNICODE_STRING machineW;
2011     LONG ret;
2012
2013     RtlCreateUnicodeStringFromAsciiz( &machineW, machine );
2014     ret = RegConnectRegistryW( machineW.Buffer, hkey, reskey );
2015     RtlFreeUnicodeString( &machineW );
2016     return ret;
2017 }
2018
2019
2020 /******************************************************************************
2021  * RegNotifyChangeKeyValue [ADVAPI32.@]
2022  *
2023  * PARAMS
2024  *  hkey            [I] Handle of key to watch
2025  *  fWatchSubTree   [I] Flag for subkey notification
2026  *  fdwNotifyFilter [I] Changes to be reported
2027  *  hEvent          [I] Handle of signaled event
2028  *  fAsync          [I] Flag for asynchronous reporting
2029  *
2030  * RETURNS
2031  *  Success: ERROR_SUCCESS
2032  *  Failure: nonzero error code from Winerror.h
2033  */
2034 LONG WINAPI RegNotifyChangeKeyValue( HKEY hkey, BOOL fWatchSubTree,
2035                                      DWORD fdwNotifyFilter, HANDLE hEvent,
2036                                      BOOL fAsync )
2037 {
2038     LONG ret;
2039
2040     TRACE("(%p,%i,%ld,%p,%i)\n",hkey,fWatchSubTree,fdwNotifyFilter,
2041           hEvent,fAsync);
2042
2043     if( !fAsync )
2044         hEvent = CreateEventW(NULL, 0, 0, NULL);
2045
2046     SERVER_START_REQ( set_registry_notification )
2047     {
2048         req->hkey    = hkey;
2049         req->event   = hEvent;
2050         req->subtree = fWatchSubTree;
2051         req->filter  = fdwNotifyFilter;
2052         ret = RtlNtStatusToDosError( wine_server_call(req) );
2053     }
2054     SERVER_END_REQ;
2055
2056     if( !fAsync )
2057     {
2058         if( ret == ERROR_SUCCESS )
2059             WaitForSingleObject( hEvent, INFINITE );
2060         CloseHandle( hEvent );
2061     }
2062
2063     return ret;
2064 }
2065
2066 /******************************************************************************
2067  * RegOpenUserClassesRoot [ADVAPI32.@]
2068  *
2069  * Open the HKEY_CLASSES_ROOT key for a user.
2070  *
2071  * PARAMS
2072  *  hToken     [I] Handle of token representing the user
2073  *  dwOptions  [I] Reserved, nust be 0
2074  *  samDesired [I] Desired access rights
2075  *  phkResult  [O] Destination for the resulting key handle
2076  *
2077  * RETURNS
2078  *  Success: ERROR_SUCCESS
2079  *  Failure: nonzero error code from Winerror.h
2080  *
2081  * NOTES
2082  *  On Windows 2000 and upwards the HKEY_CLASSES_ROOT key is a view of the
2083  *  "HKEY_LOCAL_MACHINE\Software\Classes" and the
2084  *  "HKEY_CURRENT_USER\Software\Classes" keys merged together.
2085  */
2086 LONG WINAPI RegOpenUserClassesRoot(
2087     HANDLE hToken,
2088     DWORD dwOptions,
2089     REGSAM samDesired,
2090     PHKEY phkResult
2091 )
2092 {
2093     FIXME("(%p, 0x%lx, 0x%lx, %p) semi-stub\n", hToken, dwOptions, samDesired, phkResult);
2094
2095     *phkResult = HKEY_CLASSES_ROOT;
2096     return ERROR_SUCCESS;
2097 }