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TESTING -- override pthreads to fix gstreamer v5
[wine/multimedia.git] / dlls / advapi32 / registry.c
blob4f33fe6aca62367518b125b1e0cc67a349afc807
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 library is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU Lesser General Public
13 * License as published by the Free Software Foundation; either
14 * version 2.1 of the License, or (at your option) any later version.
15 *
16 * This library is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * Lesser General Public License for more details.
20 *
21 * You should have received a copy of the GNU Lesser General Public
22 * License along with this library; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
24 */
25
26 #include "config.h"
27
28 #include <stdlib.h>
29 #include <stdarg.h>
30 #include <stdio.h>
31
32 #include "ntstatus.h"
33 #define WIN32_NO_STATUS
34 #include "windef.h"
35 #include "winbase.h"
36 #include "winreg.h"
37 #include "winerror.h"
38 #include "winternl.h"
39 #include "winuser.h"
40 #include "advapi32_misc.h"
41
42 #include "wine/unicode.h"
43 #include "wine/debug.h"
44
45 WINE_DEFAULT_DEBUG_CHANNEL(reg);
46
47 #define HKEY_SPECIAL_ROOT_FIRST HKEY_CLASSES_ROOT
48 #define HKEY_SPECIAL_ROOT_LAST HKEY_DYN_DATA
49
50 static const WCHAR name_CLASSES_ROOT[] =
51 {'\\','R','e','g','i','s','t','r','y','\\',
52 'M','a','c','h','i','n','e','\\',
53 'S','o','f','t','w','a','r','e','\\',
54 'C','l','a','s','s','e','s',0};
55 static const WCHAR name_LOCAL_MACHINE[] =
56 {'\\','R','e','g','i','s','t','r','y','\\',
57 'M','a','c','h','i','n','e',0};
58 static const WCHAR name_USERS[] =
59 {'\\','R','e','g','i','s','t','r','y','\\',
60 'U','s','e','r',0};
61 static const WCHAR name_PERFORMANCE_DATA[] =
62 {'\\','R','e','g','i','s','t','r','y','\\',
63 'P','e','r','f','D','a','t','a',0};
64 static const WCHAR name_CURRENT_CONFIG[] =
65 {'\\','R','e','g','i','s','t','r','y','\\',
66 'M','a','c','h','i','n','e','\\',
67 'S','y','s','t','e','m','\\',
68 'C','u','r','r','e','n','t','C','o','n','t','r','o','l','S','e','t','\\',
69 'H','a','r','d','w','a','r','e',' ','P','r','o','f','i','l','e','s','\\',
70 'C','u','r','r','e','n','t',0};
71 static const WCHAR name_DYN_DATA[] =
72 {'\\','R','e','g','i','s','t','r','y','\\',
73 'D','y','n','D','a','t','a',0};
74
75 static const WCHAR * const root_key_names[] =
76 {
77 name_CLASSES_ROOT,
78 NULL, /* HKEY_CURRENT_USER is determined dynamically */
79 name_LOCAL_MACHINE,
80 name_USERS,
81 name_PERFORMANCE_DATA,
82 name_CURRENT_CONFIG,
83 name_DYN_DATA
84 };
85
86 #define NB_SPECIAL_ROOT_KEYS (sizeof(root_key_names)/sizeof(root_key_names[0]))
87
88 static HKEY special_root_keys[NB_SPECIAL_ROOT_KEYS];
89 static BOOL hkcu_cache_disabled;
90
91 static const BOOL is_win64 = (sizeof(void *) > sizeof(int));
92
93 /* check if value type needs string conversion (Ansi<->Unicode) */
94 static inline BOOL is_string( DWORD type )
95 {
96 return (type == REG_SZ) || (type == REG_EXPAND_SZ) || (type == REG_MULTI_SZ);
97 }
98
99 /* check if current version is NT or Win95 */
100 static inline BOOL is_version_nt(void)
101 {
102 return !(GetVersion() & 0x80000000);
103 }
104
105 static BOOL is_wow6432node( const UNICODE_STRING *name )
106 {
107 static const WCHAR wow6432nodeW[] = {'W','o','w','6','4','3','2','N','o','d','e'};
108
109 return (name->Length == sizeof(wow6432nodeW) &&
110 !memicmpW( name->Buffer, wow6432nodeW, sizeof(wow6432nodeW)/sizeof(WCHAR) ));
111 }
112
113 /* open the Wow6432Node subkey of the specified key */
114 static HANDLE open_wow6432node( HANDLE key )
115 {
116 static const WCHAR wow6432nodeW[] = {'W','o','w','6','4','3','2','N','o','d','e',0};
117 OBJECT_ATTRIBUTES attr;
118 UNICODE_STRING nameW;
119 HANDLE ret;
120
121 attr.Length = sizeof(attr);
122 attr.RootDirectory = key;
123 attr.ObjectName = &nameW;
124 attr.Attributes = 0;
125 attr.SecurityDescriptor = NULL;
126 attr.SecurityQualityOfService = NULL;
127 RtlInitUnicodeString( &nameW, wow6432nodeW );
128 if (NtOpenKey( &ret, MAXIMUM_ALLOWED, &attr )) ret = 0;
129 return ret;
130 }
131
132 /* wrapper for NtCreateKey that creates the key recursively if necessary */
133 static NTSTATUS create_key( HKEY *retkey, ACCESS_MASK access, OBJECT_ATTRIBUTES *attr,
134 const UNICODE_STRING *class, ULONG options, PULONG dispos )
135 {
136 BOOL force_wow32 = is_win64 && (access & KEY_WOW64_32KEY);
137 NTSTATUS status = STATUS_OBJECT_NAME_NOT_FOUND;
138 HANDLE subkey, root = attr->RootDirectory;
139
140 if (!force_wow32) status = NtCreateKey( &subkey, access, attr, 0, class, options, dispos );
141
142 if (status == STATUS_OBJECT_NAME_NOT_FOUND)
143 {
144 static const WCHAR registry_root[] = {'\\','R','e','g','i','s','t','r','y','\\'};
145 WCHAR *buffer = attr->ObjectName->Buffer;
146 DWORD attrs, pos = 0, i = 0, len = attr->ObjectName->Length / sizeof(WCHAR);
147 UNICODE_STRING str;
148
149 /* don't try to create registry root */
150 if (!attr->RootDirectory && len > sizeof(registry_root)/sizeof(WCHAR) &&
151 !memicmpW( buffer, registry_root, sizeof(registry_root)/sizeof(WCHAR)))
152 i += sizeof(registry_root)/sizeof(WCHAR);
153
154 while (i < len && buffer[i] != '\\') i++;
155 if (i == len && !force_wow32) return status;
156
157 attrs = attr->Attributes;
158 attr->ObjectName = &str;
159
160 for (;;)
161 {
162 str.Buffer = buffer + pos;
163 str.Length = (i - pos) * sizeof(WCHAR);
164 if (force_wow32 && pos)
165 {
166 if (is_wow6432node( &str )) force_wow32 = FALSE;
167 else if ((subkey = open_wow6432node( attr->RootDirectory )))
168 {
169 if (attr->RootDirectory != root) NtClose( attr->RootDirectory );
170 attr->RootDirectory = subkey;
171 force_wow32 = FALSE;
172 }
173 }
174 if (i == len)
175 {
176 attr->Attributes = attrs;
177 status = NtCreateKey( &subkey, access, attr, 0, class, options, dispos );
178 }
179 else
180 {
181 attr->Attributes = attrs & ~OBJ_OPENLINK;
182 status = NtCreateKey( &subkey, access, attr, 0, class,
183 options & ~REG_OPTION_CREATE_LINK, dispos );
184 }
185 if (attr->RootDirectory != root) NtClose( attr->RootDirectory );
186 if (status) return status;
187 if (i == len) break;
188 attr->RootDirectory = subkey;
189 while (i < len && buffer[i] == '\\') i++;
190 pos = i;
191 while (i < len && buffer[i] != '\\') i++;
192 }
193 }
194 attr->RootDirectory = subkey;
195 if (force_wow32 && (subkey = open_wow6432node( attr->RootDirectory )))
196 {
197 if (attr->RootDirectory != root) NtClose( attr->RootDirectory );
198 attr->RootDirectory = subkey;
199 }
200 *retkey = attr->RootDirectory;
201 return status;
202 }
203
204 /* wrapper for NtOpenKey to handle Wow6432 nodes */
205 static NTSTATUS open_key( HKEY *retkey, ACCESS_MASK access, OBJECT_ATTRIBUTES *attr )
206 {
207 NTSTATUS status;
208 BOOL force_wow32 = is_win64 && (access & KEY_WOW64_32KEY);
209 HANDLE subkey, root = attr->RootDirectory;
210 WCHAR *buffer = attr->ObjectName->Buffer;
211 DWORD attrs, pos = 0, i = 0, len = attr->ObjectName->Length / sizeof(WCHAR);
212 UNICODE_STRING str;
213
214 if (!force_wow32) return NtOpenKey( (HANDLE *)retkey, access, attr );
215
216 if (len && buffer[0] == '\\') return STATUS_OBJECT_PATH_INVALID;
217 while (i < len && buffer[i] != '\\') i++;
218 attrs = attr->Attributes;
219 attr->ObjectName = &str;
220
221 for (;;)
222 {
223 str.Buffer = buffer + pos;
224 str.Length = (i - pos) * sizeof(WCHAR);
225 if (force_wow32 && pos)
226 {
227 if (is_wow6432node( &str )) force_wow32 = FALSE;
228 else if ((subkey = open_wow6432node( attr->RootDirectory )))
229 {
230 if (attr->RootDirectory != root) NtClose( attr->RootDirectory );
231 attr->RootDirectory = subkey;
232 force_wow32 = FALSE;
233 }
234 }
235 if (i == len)
236 {
237 attr->Attributes = attrs;
238 status = NtOpenKey( &subkey, access, attr );
239 }
240 else
241 {
242 attr->Attributes = attrs & ~OBJ_OPENLINK;
243 status = NtOpenKey( &subkey, access, attr );
244 }
245 if (attr->RootDirectory != root) NtClose( attr->RootDirectory );
246 if (status) return status;
247 attr->RootDirectory = subkey;
248 if (i == len) break;
249 while (i < len && buffer[i] == '\\') i++;
250 pos = i;
251 while (i < len && buffer[i] != '\\') i++;
252 }
253 if (force_wow32 && (subkey = open_wow6432node( attr->RootDirectory )))
254 {
255 if (attr->RootDirectory != root) NtClose( attr->RootDirectory );
256 attr->RootDirectory = subkey;
257 }
258 *retkey = attr->RootDirectory;
259 return status;
260 }
261
262 /* create one of the HKEY_* special root keys */
263 static HKEY create_special_root_hkey( HKEY hkey, DWORD access )
264 {
265 HKEY ret = 0;
266 int idx = HandleToUlong(hkey) - HandleToUlong(HKEY_SPECIAL_ROOT_FIRST);
267
268 if (HandleToUlong(hkey) == HandleToUlong(HKEY_CURRENT_USER))
269 {
270 if (RtlOpenCurrentUser( access, (HANDLE *)&hkey )) return 0;
271 TRACE( "HKEY_CURRENT_USER -> %p\n", hkey );
272
273 /* don't cache the key in the table if caching is disabled */
274 if (hkcu_cache_disabled)
275 return hkey;
276 }
277 else
278 {
279 OBJECT_ATTRIBUTES attr;
280 UNICODE_STRING name;
281
282 attr.Length = sizeof(attr);
283 attr.RootDirectory = 0;
284 attr.ObjectName = &name;
285 attr.Attributes = 0;
286 attr.SecurityDescriptor = NULL;
287 attr.SecurityQualityOfService = NULL;
288 RtlInitUnicodeString( &name, root_key_names[idx] );
289 if (create_key( &hkey, access, &attr, NULL, 0, NULL )) return 0;
290 TRACE( "%s -> %p\n", debugstr_w(attr.ObjectName->Buffer), hkey );
291 }
292
293 if (!(access & (KEY_WOW64_64KEY | KEY_WOW64_32KEY)))
294 {
295 if (!(ret = InterlockedCompareExchangePointer( (void **)&special_root_keys[idx], hkey, 0 )))
296 ret = hkey;
297 else
298 NtClose( hkey ); /* somebody beat us to it */
299 }
300 else
301 ret = hkey;
302 return ret;
303 }
304
305 /* map the hkey from special root to normal key if necessary */
306 static inline HKEY get_special_root_hkey( HKEY hkey, REGSAM access )
307 {
308 HKEY ret = hkey;
309
310 if ((HandleToUlong(hkey) >= HandleToUlong(HKEY_SPECIAL_ROOT_FIRST))
311 && (HandleToUlong(hkey) <= HandleToUlong(HKEY_SPECIAL_ROOT_LAST)))
312 {
313 REGSAM mask = 0;
314
315 if (HandleToUlong(hkey) == HandleToUlong(HKEY_CLASSES_ROOT))
316 mask = KEY_WOW64_32KEY | KEY_WOW64_64KEY;
317
318 if ((access & mask) ||
319 !(ret = special_root_keys[HandleToUlong(hkey) - HandleToUlong(HKEY_SPECIAL_ROOT_FIRST)]))
320 ret = create_special_root_hkey( hkey, MAXIMUM_ALLOWED | (access & mask) );
321 }
322 return ret;
323 }
324
325
326 /******************************************************************************
327 * RegOverridePredefKey [ADVAPI32.@]
328 */
329 LSTATUS WINAPI RegOverridePredefKey( HKEY hkey, HKEY override )
330 {
331 HKEY old_key;
332 int idx;
333
334 TRACE("(%p %p)\n", hkey, override);
335
336 if ((HandleToUlong(hkey) < HandleToUlong(HKEY_SPECIAL_ROOT_FIRST))
337 || (HandleToUlong(hkey) > HandleToUlong(HKEY_SPECIAL_ROOT_LAST)))
338 return ERROR_INVALID_PARAMETER;
339 idx = HandleToUlong(hkey) - HandleToUlong(HKEY_SPECIAL_ROOT_FIRST);
340
341 if (override)
342 {
343 NTSTATUS status = NtDuplicateObject( GetCurrentProcess(), override,
344 GetCurrentProcess(), (HANDLE *)&override,
345 0, 0, DUPLICATE_SAME_ACCESS );
346 if (status) return RtlNtStatusToDosError( status );
347 }
348
349 old_key = InterlockedExchangePointer( (void **)&special_root_keys[idx], override );
350 if (old_key) NtClose( old_key );
351 return ERROR_SUCCESS;
352 }
353
354
355 /******************************************************************************
356 * RegCreateKeyExW [ADVAPI32.@]
357 *
358 * See RegCreateKeyExA.
359 */
360 LSTATUS WINAPI RegCreateKeyExW( HKEY hkey, LPCWSTR name, DWORD reserved, LPWSTR class,
361 DWORD options, REGSAM access, SECURITY_ATTRIBUTES *sa,
362 PHKEY retkey, LPDWORD dispos )
363 {
364 OBJECT_ATTRIBUTES attr;
365 UNICODE_STRING nameW, classW;
366
367 if (reserved) return ERROR_INVALID_PARAMETER;
368 if (!(hkey = get_special_root_hkey( hkey, access ))) return ERROR_INVALID_HANDLE;
369
370 attr.Length = sizeof(attr);
371 attr.RootDirectory = hkey;
372 attr.ObjectName = &nameW;
373 attr.Attributes = 0;
374 attr.SecurityDescriptor = NULL;
375 attr.SecurityQualityOfService = NULL;
376 if (options & REG_OPTION_OPEN_LINK) attr.Attributes |= OBJ_OPENLINK;
377 RtlInitUnicodeString( &nameW, name );
378 RtlInitUnicodeString( &classW, class );
379
380 return RtlNtStatusToDosError( create_key( retkey, access, &attr, &classW, options, dispos ) );
381 }
382
383
384 /******************************************************************************
385 * RegCreateKeyExA [ADVAPI32.@]
386 *
387 * Open a registry key, creating it if it doesn't exist.
388 *
389 * PARAMS
390 * hkey [I] Handle of the parent registry key
391 * name [I] Name of the new key to open or create
392 * reserved [I] Reserved, pass 0
393 * class [I] The object type of the new key
394 * options [I] Flags controlling the key creation (REG_OPTION_* flags from "winnt.h")
395 * access [I] Access level desired
396 * sa [I] Security attributes for the key
397 * retkey [O] Destination for the resulting handle
398 * dispos [O] Receives REG_CREATED_NEW_KEY or REG_OPENED_EXISTING_KEY
399 *
400 * RETURNS
401 * Success: ERROR_SUCCESS.
402 * Failure: A standard Win32 error code. retkey remains untouched.
403 *
404 * FIXME
405 * MAXIMUM_ALLOWED in access mask not supported by server
406 */
407 LSTATUS WINAPI RegCreateKeyExA( HKEY hkey, LPCSTR name, DWORD reserved, LPSTR class,
408 DWORD options, REGSAM access, SECURITY_ATTRIBUTES *sa,
409 PHKEY retkey, LPDWORD dispos )
410 {
411 OBJECT_ATTRIBUTES attr;
412 UNICODE_STRING classW;
413 ANSI_STRING nameA, classA;
414 NTSTATUS status;
415
416 if (reserved) return ERROR_INVALID_PARAMETER;
417 if (!is_version_nt())
418 {
419 access = MAXIMUM_ALLOWED; /* Win95 ignores the access mask */
420 if (name && *name == '\\') name++; /* win9x,ME ignores one (and only one) beginning backslash */
421 }
422 if (!(hkey = get_special_root_hkey( hkey, access ))) return ERROR_INVALID_HANDLE;
423
424 attr.Length = sizeof(attr);
425 attr.RootDirectory = hkey;
426 attr.ObjectName = &NtCurrentTeb()->StaticUnicodeString;
427 attr.Attributes = 0;
428 attr.SecurityDescriptor = NULL;
429 attr.SecurityQualityOfService = NULL;
430 if (options & REG_OPTION_OPEN_LINK) attr.Attributes |= OBJ_OPENLINK;
431 RtlInitAnsiString( &nameA, name );
432 RtlInitAnsiString( &classA, class );
433
434 if (!(status = RtlAnsiStringToUnicodeString( &NtCurrentTeb()->StaticUnicodeString,
435 &nameA, FALSE )))
436 {
437 if (!(status = RtlAnsiStringToUnicodeString( &classW, &classA, TRUE )))
438 {
439 status = create_key( retkey, access, &attr, &classW, options, dispos );
440 RtlFreeUnicodeString( &classW );
441 }
442 }
443 return RtlNtStatusToDosError( status );
444 }
445
446
447 /******************************************************************************
448 * RegCreateKeyW [ADVAPI32.@]
449 *
450 * Creates the specified reg key.
451 *
452 * PARAMS
453 * hKey [I] Handle to an open key.
454 * lpSubKey [I] Name of a key that will be opened or created.
455 * phkResult [O] Receives a handle to the opened or created key.
456 *
457 * RETURNS
458 * Success: ERROR_SUCCESS
459 * Failure: nonzero error code defined in Winerror.h
460 */
461 LSTATUS WINAPI RegCreateKeyW( HKEY hkey, LPCWSTR lpSubKey, PHKEY phkResult )
462 {
463 /* FIXME: previous implementation converted ERROR_INVALID_HANDLE to ERROR_BADKEY, */
464 /* but at least my version of NT (4.0 SP5) doesn't do this. -- AJ */
465 return RegCreateKeyExW( hkey, lpSubKey, 0, NULL, REG_OPTION_NON_VOLATILE,
466 MAXIMUM_ALLOWED, NULL, phkResult, NULL );
467 }
468
469
470 /******************************************************************************
471 * RegCreateKeyA [ADVAPI32.@]
472 *
473 * See RegCreateKeyW.
474 */
475 LSTATUS WINAPI RegCreateKeyA( HKEY hkey, LPCSTR lpSubKey, PHKEY phkResult )
476 {
477 return RegCreateKeyExA( hkey, lpSubKey, 0, NULL, REG_OPTION_NON_VOLATILE,
478 MAXIMUM_ALLOWED, NULL, phkResult, NULL );
479 }
480
481
482
483 /******************************************************************************
484 * RegOpenKeyExW [ADVAPI32.@]
485 *
486 * See RegOpenKeyExA.
487 */
488 LSTATUS WINAPI RegOpenKeyExW( HKEY hkey, LPCWSTR name, DWORD options, REGSAM access, PHKEY retkey )
489 {
490 OBJECT_ATTRIBUTES attr;
491 UNICODE_STRING nameW;
492
493 if (retkey && (!name || !name[0]) &&
494 (HandleToUlong(hkey) >= HandleToUlong(HKEY_SPECIAL_ROOT_FIRST)) &&
495 (HandleToUlong(hkey) <= HandleToUlong(HKEY_SPECIAL_ROOT_LAST)))
496 {
497 *retkey = hkey;
498 return ERROR_SUCCESS;
499 }
500
501 /* NT+ allows beginning backslash for HKEY_CLASSES_ROOT */
502 if (HandleToUlong(hkey) == HandleToUlong(HKEY_CLASSES_ROOT) && name && *name == '\\') name++;
503
504 if (!retkey) return ERROR_INVALID_PARAMETER;
505 if (!(hkey = get_special_root_hkey( hkey, access ))) return ERROR_INVALID_HANDLE;
506
507 attr.Length = sizeof(attr);
508 attr.RootDirectory = hkey;
509 attr.ObjectName = &nameW;
510 attr.Attributes = 0;
511 attr.SecurityDescriptor = NULL;
512 attr.SecurityQualityOfService = NULL;
513 if (options & REG_OPTION_OPEN_LINK) attr.Attributes |= OBJ_OPENLINK;
514 RtlInitUnicodeString( &nameW, name );
515 return RtlNtStatusToDosError( open_key( retkey, access, &attr ) );
516 }
517
518
519 /******************************************************************************
520 * RegOpenKeyExA [ADVAPI32.@]
521 *
522 * Open a registry key.
523 *
524 * PARAMS
525 * hkey [I] Handle of open key
526 * name [I] Name of subkey to open
527 * options [I] Open options (can be set to REG_OPTION_OPEN_LINK)
528 * access [I] Security access mask
529 * retkey [O] Handle to open key
530 *
531 * RETURNS
532 * Success: ERROR_SUCCESS
533 * Failure: A standard Win32 error code. retkey is set to 0.
534 *
535 * NOTES
536 * Unlike RegCreateKeyExA(), this function will not create the key if it
537 * does not exist.
538 */
539 LSTATUS WINAPI DECLSPEC_HOTPATCH RegOpenKeyExA( HKEY hkey, LPCSTR name, DWORD options, REGSAM access, PHKEY retkey )
540 {
541 OBJECT_ATTRIBUTES attr;
542 STRING nameA;
543 NTSTATUS status;
544
545 if (retkey && (!name || !name[0]) &&
546 (HandleToUlong(hkey) >= HandleToUlong(HKEY_SPECIAL_ROOT_FIRST)) &&
547 (HandleToUlong(hkey) <= HandleToUlong(HKEY_SPECIAL_ROOT_LAST)))
548 {
549 *retkey = hkey;
550 return ERROR_SUCCESS;
551 }
552
553 if (!is_version_nt()) access = MAXIMUM_ALLOWED; /* Win95 ignores the access mask */
554 else
555 {
556 /* NT+ allows beginning backslash for HKEY_CLASSES_ROOT */
557 if (HandleToUlong(hkey) == HandleToUlong(HKEY_CLASSES_ROOT) && name && *name == '\\') name++;
558 }
559
560 if (!(hkey = get_special_root_hkey( hkey, access ))) return ERROR_INVALID_HANDLE;
561
562 attr.Length = sizeof(attr);
563 attr.RootDirectory = hkey;
564 attr.ObjectName = &NtCurrentTeb()->StaticUnicodeString;
565 attr.Attributes = 0;
566 attr.SecurityDescriptor = NULL;
567 attr.SecurityQualityOfService = NULL;
568 if (options & REG_OPTION_OPEN_LINK) attr.Attributes |= OBJ_OPENLINK;
569
570 RtlInitAnsiString( &nameA, name );
571 if (!(status = RtlAnsiStringToUnicodeString( &NtCurrentTeb()->StaticUnicodeString,
572 &nameA, FALSE )))
573 {
574 status = open_key( retkey, access, &attr );
575 }
576 return RtlNtStatusToDosError( status );
577 }
578
579
580 /******************************************************************************
581 * RegOpenKeyW [ADVAPI32.@]
582 *
583 * See RegOpenKeyA.
584 */
585 LSTATUS WINAPI RegOpenKeyW( HKEY hkey, LPCWSTR name, PHKEY retkey )
586 {
587 if (!retkey)
588 return ERROR_INVALID_PARAMETER;
589
590 if (!name || !*name)
591 {
592 *retkey = hkey;
593 return ERROR_SUCCESS;
594 }
595 return RegOpenKeyExW( hkey, name, 0, MAXIMUM_ALLOWED, retkey );
596 }
597
598
599 /******************************************************************************
600 * RegOpenKeyA [ADVAPI32.@]
601 *
602 * Open a registry key.
603 *
604 * PARAMS
605 * hkey [I] Handle of parent key to open the new key under
606 * name [I] Name of the key under hkey to open
607 * retkey [O] Destination for the resulting Handle
608 *
609 * RETURNS
610 * Success: ERROR_SUCCESS
611 * Failure: A standard Win32 error code. When retkey is valid, *retkey is set to 0.
612 */
613 LSTATUS WINAPI RegOpenKeyA( HKEY hkey, LPCSTR name, PHKEY retkey )
614 {
615 if (!retkey)
616 return ERROR_INVALID_PARAMETER;
617
618 if (!name || !*name)
619 {
620 *retkey = hkey;
621 return ERROR_SUCCESS;
622 }
623 return RegOpenKeyExA( hkey, name, 0, MAXIMUM_ALLOWED, retkey );
624 }
625
626
627 /******************************************************************************
628 * RegOpenCurrentUser [ADVAPI32.@]
629 *
630 * Get a handle to the HKEY_CURRENT_USER key for the user
631 * the current thread is impersonating.
632 *
633 * PARAMS
634 * access [I] Desired access rights to the key
635 * retkey [O] Handle to the opened key
636 *
637 * RETURNS
638 * Success: ERROR_SUCCESS
639 * Failure: nonzero error code from Winerror.h
640 *
641 * FIXME
642 * This function is supposed to retrieve a handle to the
643 * HKEY_CURRENT_USER for the user the current thread is impersonating.
644 * Since Wine does not currently allow threads to impersonate other users,
645 * this stub should work fine.
646 */
647 LSTATUS WINAPI RegOpenCurrentUser( REGSAM access, PHKEY retkey )
648 {
649 return RegOpenKeyExA( HKEY_CURRENT_USER, "", 0, access, retkey );
650 }
651
652
653
654 /******************************************************************************
655 * RegEnumKeyExW [ADVAPI32.@]
656 *
657 * Enumerate subkeys of the specified open registry key.
658 *
659 * PARAMS
660 * hkey [I] Handle to key to enumerate
661 * index [I] Index of subkey to enumerate
662 * name [O] Buffer for subkey name
663 * name_len [O] Size of subkey buffer
664 * reserved [I] Reserved
665 * class [O] Buffer for class string
666 * class_len [O] Size of class buffer
667 * ft [O] Time key last written to
668 *
669 * RETURNS
670 * Success: ERROR_SUCCESS
671 * Failure: System error code. If there are no more subkeys available, the
672 * function returns ERROR_NO_MORE_ITEMS.
673 */
674 LSTATUS WINAPI RegEnumKeyExW( HKEY hkey, DWORD index, LPWSTR name, LPDWORD name_len,
675 LPDWORD reserved, LPWSTR class, LPDWORD class_len, FILETIME *ft )
676 {
677 NTSTATUS status;
678 char buffer[256], *buf_ptr = buffer;
679 KEY_NODE_INFORMATION *info = (KEY_NODE_INFORMATION *)buffer;
680 DWORD total_size;
681
682 TRACE( "(%p,%d,%p,%p(%u),%p,%p,%p,%p)\n", hkey, index, name, name_len,
683 name_len ? *name_len : 0, reserved, class, class_len, ft );
684
685 if (reserved) return ERROR_INVALID_PARAMETER;
686 if (!(hkey = get_special_root_hkey( hkey, 0 ))) return ERROR_INVALID_HANDLE;
687
688 status = NtEnumerateKey( hkey, index, KeyNodeInformation,
689 buffer, sizeof(buffer), &total_size );
690
691 while (status == STATUS_BUFFER_OVERFLOW)
692 {
693 /* retry with a dynamically allocated buffer */
694 if (buf_ptr != buffer) heap_free( buf_ptr );
695 if (!(buf_ptr = heap_alloc( total_size )))
696 return ERROR_NOT_ENOUGH_MEMORY;
697 info = (KEY_NODE_INFORMATION *)buf_ptr;
698 status = NtEnumerateKey( hkey, index, KeyNodeInformation,
699 buf_ptr, total_size, &total_size );
700 }
701
702 if (!status)
703 {
704 DWORD len = info->NameLength / sizeof(WCHAR);
705 DWORD cls_len = info->ClassLength / sizeof(WCHAR);
706
707 if (ft) *ft = *(FILETIME *)&info->LastWriteTime;
708
709 if (len >= *name_len || (class && class_len && (cls_len >= *class_len)))
710 status = STATUS_BUFFER_OVERFLOW;
711 else
712 {
713 *name_len = len;
714 memcpy( name, info->Name, info->NameLength );
715 name[len] = 0;
716 if (class_len)
717 {
718 *class_len = cls_len;
719 if (class)
720 {
721 memcpy( class, buf_ptr + info->ClassOffset, info->ClassLength );
722 class[cls_len] = 0;
723 }
724 }
725 }
726 }
727
728 if (buf_ptr != buffer) heap_free( buf_ptr );
729 return RtlNtStatusToDosError( status );
730 }
731
732
733 /******************************************************************************
734 * RegEnumKeyExA [ADVAPI32.@]
735 *
736 * See RegEnumKeyExW.
737 */
738 LSTATUS WINAPI RegEnumKeyExA( HKEY hkey, DWORD index, LPSTR name, LPDWORD name_len,
739 LPDWORD reserved, LPSTR class, LPDWORD class_len, FILETIME *ft )
740 {
741 NTSTATUS status;
742 char buffer[256], *buf_ptr = buffer;
743 KEY_NODE_INFORMATION *info = (KEY_NODE_INFORMATION *)buffer;
744 DWORD total_size;
745
746 TRACE( "(%p,%d,%p,%p(%u),%p,%p,%p,%p)\n", hkey, index, name, name_len,
747 name_len ? *name_len : 0, reserved, class, class_len, ft );
748
749 if (reserved) return ERROR_INVALID_PARAMETER;
750 if (!(hkey = get_special_root_hkey( hkey, 0 ))) return ERROR_INVALID_HANDLE;
751
752 status = NtEnumerateKey( hkey, index, KeyNodeInformation,
753 buffer, sizeof(buffer), &total_size );
754
755 while (status == STATUS_BUFFER_OVERFLOW)
756 {
757 /* retry with a dynamically allocated buffer */
758 if (buf_ptr != buffer) heap_free( buf_ptr );
759 if (!(buf_ptr = heap_alloc( total_size )))
760 return ERROR_NOT_ENOUGH_MEMORY;
761 info = (KEY_NODE_INFORMATION *)buf_ptr;
762 status = NtEnumerateKey( hkey, index, KeyNodeInformation,
763 buf_ptr, total_size, &total_size );
764 }
765
766 if (!status)
767 {
768 DWORD len, cls_len;
769
770 RtlUnicodeToMultiByteSize( &len, info->Name, info->NameLength );
771 RtlUnicodeToMultiByteSize( &cls_len, (WCHAR *)(buf_ptr + info->ClassOffset),
772 info->ClassLength );
773 if (ft) *ft = *(FILETIME *)&info->LastWriteTime;
774
775 if (len >= *name_len || (class && class_len && (cls_len >= *class_len)))
776 status = STATUS_BUFFER_OVERFLOW;
777 else
778 {
779 *name_len = len;
780 RtlUnicodeToMultiByteN( name, len, NULL, info->Name, info->NameLength );
781 name[len] = 0;
782 if (class_len)
783 {
784 *class_len = cls_len;
785 if (class)
786 {
787 RtlUnicodeToMultiByteN( class, cls_len, NULL,
788 (WCHAR *)(buf_ptr + info->ClassOffset),
789 info->ClassLength );
790 class[cls_len] = 0;
791 }
792 }
793 }
794 }
795
796 if (buf_ptr != buffer) heap_free( buf_ptr );
797 return RtlNtStatusToDosError( status );
798 }
799
800
801 /******************************************************************************
802 * RegEnumKeyW [ADVAPI32.@]
803 *
804 * Enumerates subkeys of the specified open reg key.
805 *
806 * PARAMS
807 * hKey [I] Handle to an open key.
808 * dwIndex [I] Index of the subkey of hKey to retrieve.
809 * lpName [O] Name of the subkey.
810 * cchName [I] Size of lpName in TCHARS.
811 *
812 * RETURNS
813 * Success: ERROR_SUCCESS
814 * Failure: system error code. If there are no more subkeys available, the
815 * function returns ERROR_NO_MORE_ITEMS.
816 */
817 LSTATUS WINAPI RegEnumKeyW( HKEY hkey, DWORD index, LPWSTR name, DWORD name_len )
818 {
819 return RegEnumKeyExW( hkey, index, name, &name_len, NULL, NULL, NULL, NULL );
820 }
821
822
823 /******************************************************************************
824 * RegEnumKeyA [ADVAPI32.@]
825 *
826 * See RegEnumKeyW.
827 */
828 LSTATUS WINAPI RegEnumKeyA( HKEY hkey, DWORD index, LPSTR name, DWORD name_len )
829 {
830 return RegEnumKeyExA( hkey, index, name, &name_len, NULL, NULL, NULL, NULL );
831 }
832
833
834 /******************************************************************************
835 * RegQueryInfoKeyW [ADVAPI32.@]
836 *
837 * Retrieves information about the specified registry key.
838 *
839 * PARAMS
840 * hkey [I] Handle to key to query
841 * class [O] Buffer for class string
842 * class_len [O] Size of class string buffer
843 * reserved [I] Reserved
844 * subkeys [O] Buffer for number of subkeys
845 * max_subkey [O] Buffer for longest subkey name length
846 * max_class [O] Buffer for longest class string length
847 * values [O] Buffer for number of value entries
848 * max_value [O] Buffer for longest value name length
849 * max_data [O] Buffer for longest value data length
850 * security [O] Buffer for security descriptor length
851 * modif [O] Modification time
852 *
853 * RETURNS
854 * Success: ERROR_SUCCESS
855 * Failure: system error code.
856 *
857 * NOTES
858 * - win95 allows class to be valid and class_len to be NULL
859 * - winnt returns ERROR_INVALID_PARAMETER if class is valid and class_len is NULL
860 * - both allow class to be NULL and class_len to be NULL
861 * (it's hard to test validity, so test !NULL instead)
862 */
863 LSTATUS WINAPI RegQueryInfoKeyW( HKEY hkey, LPWSTR class, LPDWORD class_len, LPDWORD reserved,
864 LPDWORD subkeys, LPDWORD max_subkey, LPDWORD max_class,
865 LPDWORD values, LPDWORD max_value, LPDWORD max_data,
866 LPDWORD security, FILETIME *modif )
867 {
868 NTSTATUS status;
869 char buffer[256], *buf_ptr = buffer;
870 KEY_FULL_INFORMATION *info = (KEY_FULL_INFORMATION *)buffer;
871 DWORD total_size;
872
873 TRACE( "(%p,%p,%d,%p,%p,%p,%p,%p,%p,%p,%p)\n", hkey, class, class_len ? *class_len : 0,
874 reserved, subkeys, max_subkey, values, max_value, max_data, security, modif );
875
876 if (class && !class_len && is_version_nt()) return ERROR_INVALID_PARAMETER;
877 if (!(hkey = get_special_root_hkey( hkey, 0 ))) return ERROR_INVALID_HANDLE;
878
879 status = NtQueryKey( hkey, KeyFullInformation, buffer, sizeof(buffer), &total_size );
880 if (status && status != STATUS_BUFFER_OVERFLOW) goto done;
881
882 if (class && class_len && *class_len)
883 {
884 /* retry with a dynamically allocated buffer */
885 while (status == STATUS_BUFFER_OVERFLOW)
886 {
887 if (buf_ptr != buffer) heap_free( buf_ptr );
888 if (!(buf_ptr = heap_alloc( total_size )))
889 return ERROR_NOT_ENOUGH_MEMORY;
890 info = (KEY_FULL_INFORMATION *)buf_ptr;
891 status = NtQueryKey( hkey, KeyFullInformation, buf_ptr, total_size, &total_size );
892 }
893
894 if (status) goto done;
895
896 if (class_len && (info->ClassLength/sizeof(WCHAR) + 1 > *class_len))
897 {
898 status = STATUS_BUFFER_TOO_SMALL;
899 }
900 else
901 {
902 memcpy( class, buf_ptr + info->ClassOffset, info->ClassLength );
903 class[info->ClassLength/sizeof(WCHAR)] = 0;
904 }
905 }
906 else status = STATUS_SUCCESS;
907
908 if (class_len) *class_len = info->ClassLength / sizeof(WCHAR);
909 if (subkeys) *subkeys = info->SubKeys;
910 if (max_subkey) *max_subkey = info->MaxNameLen / sizeof(WCHAR);
911 if (max_class) *max_class = info->MaxClassLen / sizeof(WCHAR);
912 if (values) *values = info->Values;
913 if (max_value) *max_value = info->MaxValueNameLen / sizeof(WCHAR);
914 if (max_data) *max_data = info->MaxValueDataLen;
915 if (modif) *modif = *(FILETIME *)&info->LastWriteTime;
916
917 if (security)
918 {
919 FIXME( "security argument not supported.\n");
920 *security = 0;
921 }
922
923 done:
924 if (buf_ptr != buffer) heap_free( buf_ptr );
925 return RtlNtStatusToDosError( status );
926 }
927
928
929 /******************************************************************************
930 * RegQueryMultipleValuesA [ADVAPI32.@]
931 *
932 * Retrieves the type and data for a list of value names associated with a key.
933 *
934 * PARAMS
935 * hKey [I] Handle to an open key.
936 * val_list [O] Array of VALENT structures that describes the entries.
937 * num_vals [I] Number of elements in val_list.
938 * lpValueBuf [O] Pointer to a buffer that receives the data for each value.
939 * ldwTotsize [I/O] Size of lpValueBuf.
940 *
941 * RETURNS
942 * Success: ERROR_SUCCESS. ldwTotsize contains num bytes copied.
943 * Failure: nonzero error code from Winerror.h ldwTotsize contains num needed
944 * bytes.
945 */
946 LSTATUS WINAPI RegQueryMultipleValuesA( HKEY hkey, PVALENTA val_list, DWORD num_vals,
947 LPSTR lpValueBuf, LPDWORD ldwTotsize )
948 {
949 unsigned int i;
950 DWORD maxBytes = *ldwTotsize;
951 HRESULT status;
952 LPSTR bufptr = lpValueBuf;
953 *ldwTotsize = 0;
954
955 TRACE("(%p,%p,%d,%p,%p=%d)\n", hkey, val_list, num_vals, lpValueBuf, ldwTotsize, *ldwTotsize);
956
957 for(i=0; i < num_vals; ++i)
958 {
959
960 val_list[i].ve_valuelen=0;
961 status = RegQueryValueExA(hkey, val_list[i].ve_valuename, NULL, NULL, NULL, &val_list[i].ve_valuelen);
962 if(status != ERROR_SUCCESS)
963 {
964 return status;
965 }
966
967 if(lpValueBuf != NULL && *ldwTotsize + val_list[i].ve_valuelen <= maxBytes)
968 {
969 status = RegQueryValueExA(hkey, val_list[i].ve_valuename, NULL, &val_list[i].ve_type,
970 (LPBYTE)bufptr, &val_list[i].ve_valuelen);
971 if(status != ERROR_SUCCESS)
972 {
973 return status;
974 }
975
976 val_list[i].ve_valueptr = (DWORD_PTR)bufptr;
977
978 bufptr += val_list[i].ve_valuelen;
979 }
980
981 *ldwTotsize += val_list[i].ve_valuelen;
982 }
983 return lpValueBuf != NULL && *ldwTotsize <= maxBytes ? ERROR_SUCCESS : ERROR_MORE_DATA;
984 }
985
986
987 /******************************************************************************
988 * RegQueryMultipleValuesW [ADVAPI32.@]
989 *
990 * See RegQueryMultipleValuesA.
991 */
992 LSTATUS WINAPI RegQueryMultipleValuesW( HKEY hkey, PVALENTW val_list, DWORD num_vals,
993 LPWSTR lpValueBuf, LPDWORD ldwTotsize )
994 {
995 unsigned int i;
996 DWORD maxBytes = *ldwTotsize;
997 HRESULT status;
998 LPSTR bufptr = (LPSTR)lpValueBuf;
999 *ldwTotsize = 0;
1000
1001 TRACE("(%p,%p,%d,%p,%p=%d)\n", hkey, val_list, num_vals, lpValueBuf, ldwTotsize, *ldwTotsize);
1002
1003 for(i=0; i < num_vals; ++i)
1004 {
1005 val_list[i].ve_valuelen=0;
1006 status = RegQueryValueExW(hkey, val_list[i].ve_valuename, NULL, NULL, NULL, &val_list[i].ve_valuelen);
1007 if(status != ERROR_SUCCESS)
1008 {
1009 return status;
1010 }
1011
1012 if(lpValueBuf != NULL && *ldwTotsize + val_list[i].ve_valuelen <= maxBytes)
1013 {
1014 status = RegQueryValueExW(hkey, val_list[i].ve_valuename, NULL, &val_list[i].ve_type,
1015 (LPBYTE)bufptr, &val_list[i].ve_valuelen);
1016 if(status != ERROR_SUCCESS)
1017 {
1018 return status;
1019 }
1020
1021 val_list[i].ve_valueptr = (DWORD_PTR)bufptr;
1022
1023 bufptr += val_list[i].ve_valuelen;
1024 }
1025
1026 *ldwTotsize += val_list[i].ve_valuelen;
1027 }
1028 return lpValueBuf != NULL && *ldwTotsize <= maxBytes ? ERROR_SUCCESS : ERROR_MORE_DATA;
1029 }
1030
1031 /******************************************************************************
1032 * RegQueryInfoKeyA [ADVAPI32.@]
1033 *
1034 * Retrieves information about a registry key.
1035 *
1036 * PARAMS
1037 * hKey [I] Handle to an open key.
1038 * lpClass [O] Class string of the key.
1039 * lpcClass [I/O] size of lpClass.
1040 * lpReserved [I] Reserved; must be NULL.
1041 * lpcSubKeys [O] Number of subkeys contained by the key.
1042 * lpcMaxSubKeyLen [O] Size of the key's subkey with the longest name.
1043 * lpcMaxClassLen [O] Size of the longest string specifying a subkey
1044 * class in TCHARS.
1045 * lpcValues [O] Number of values associated with the key.
1046 * lpcMaxValueNameLen [O] Size of the key's longest value name in TCHARS.
1047 * lpcMaxValueLen [O] Longest data component among the key's values
1048 * lpcbSecurityDescriptor [O] Size of the key's security descriptor.
1049 * lpftLastWriteTime [O] FILETIME structure that is the last write time.
1050 *
1051 * RETURNS
1052 * Success: ERROR_SUCCESS
1053 * Failure: nonzero error code from Winerror.h
1054 */
1055 LSTATUS WINAPI RegQueryInfoKeyA( HKEY hkey, LPSTR class, LPDWORD class_len, LPDWORD reserved,
1056 LPDWORD subkeys, LPDWORD max_subkey, LPDWORD max_class,
1057 LPDWORD values, LPDWORD max_value, LPDWORD max_data,
1058 LPDWORD security, FILETIME *modif )
1059 {
1060 NTSTATUS status;
1061 char buffer[256], *buf_ptr = buffer;
1062 KEY_FULL_INFORMATION *info = (KEY_FULL_INFORMATION *)buffer;
1063 DWORD total_size, len;
1064
1065 TRACE( "(%p,%p,%d,%p,%p,%p,%p,%p,%p,%p,%p)\n", hkey, class, class_len ? *class_len : 0,
1066 reserved, subkeys, max_subkey, values, max_value, max_data, security, modif );
1067
1068 if (class && !class_len && is_version_nt()) return ERROR_INVALID_PARAMETER;
1069 if (!(hkey = get_special_root_hkey( hkey, 0 ))) return ERROR_INVALID_HANDLE;
1070
1071 status = NtQueryKey( hkey, KeyFullInformation, buffer, sizeof(buffer), &total_size );
1072 if (status && status != STATUS_BUFFER_OVERFLOW) goto done;
1073
1074 if (class || class_len)
1075 {
1076 /* retry with a dynamically allocated buffer */
1077 while (status == STATUS_BUFFER_OVERFLOW)
1078 {
1079 if (buf_ptr != buffer) heap_free( buf_ptr );
1080 if (!(buf_ptr = heap_alloc( total_size )))
1081 return ERROR_NOT_ENOUGH_MEMORY;
1082 info = (KEY_FULL_INFORMATION *)buf_ptr;
1083 status = NtQueryKey( hkey, KeyFullInformation, buf_ptr, total_size, &total_size );
1084 }
1085
1086 if (status) goto done;
1087
1088 len = 0;
1089 if (class && class_len) len = *class_len;
1090 RtlUnicodeToMultiByteN( class, len, class_len,
1091 (WCHAR *)(buf_ptr + info->ClassOffset), info->ClassLength );
1092 if (len)
1093 {
1094 class[len - 1] = 0;
1095 if (*class_len + 1 > len)
1096 {
1097 status = STATUS_BUFFER_OVERFLOW;
1098 *class_len -= 1;
1099 }
1100 }
1101 }
1102 else status = STATUS_SUCCESS;
1103
1104 if (subkeys) *subkeys = info->SubKeys;
1105 if (max_subkey) *max_subkey = info->MaxNameLen / sizeof(WCHAR);
1106 if (max_class) *max_class = info->MaxClassLen / sizeof(WCHAR);
1107 if (values) *values = info->Values;
1108 if (max_value) *max_value = info->MaxValueNameLen / sizeof(WCHAR);
1109 if (max_data) *max_data = info->MaxValueDataLen;
1110 if (modif) *modif = *(FILETIME *)&info->LastWriteTime;
1111
1112 if (security)
1113 {
1114 FIXME( "security argument not supported.\n");
1115 *security = 0;
1116 }
1117
1118 done:
1119 if (buf_ptr != buffer) heap_free( buf_ptr );
1120 return RtlNtStatusToDosError( status );
1121 }
1122
1123
1124 /******************************************************************************
1125 * RegCloseKey [ADVAPI32.@]
1126 *
1127 * Close an open registry key.
1128 *
1129 * PARAMS
1130 * hkey [I] Handle of key to close
1131 *
1132 * RETURNS
1133 * Success: ERROR_SUCCESS
1134 * Failure: Error code
1135 */
1136 LSTATUS WINAPI DECLSPEC_HOTPATCH RegCloseKey( HKEY hkey )
1137 {
1138 if (!hkey) return ERROR_INVALID_HANDLE;
1139 if (hkey >= (HKEY)0x80000000) return ERROR_SUCCESS;
1140 return RtlNtStatusToDosError( NtClose( hkey ) );
1141 }
1142
1143
1144 /******************************************************************************
1145 * RegDeleteKeyExW [ADVAPI32.@]
1146 */
1147 LSTATUS WINAPI RegDeleteKeyExW( HKEY hkey, LPCWSTR name, REGSAM access, DWORD reserved )
1148 {
1149 DWORD ret;
1150 HKEY tmp;
1151
1152 if (!name) return ERROR_INVALID_PARAMETER;
1153
1154 if (!(hkey = get_special_root_hkey( hkey, access ))) return ERROR_INVALID_HANDLE;
1155
1156 access &= KEY_WOW64_64KEY | KEY_WOW64_32KEY;
1157 if (!(ret = RegOpenKeyExW( hkey, name, 0, access | DELETE, &tmp )))
1158 {
1159 ret = RtlNtStatusToDosError( NtDeleteKey( tmp ) );
1160 RegCloseKey( tmp );
1161 }
1162 TRACE("%s ret=%08x\n", debugstr_w(name), ret);
1163 return ret;
1164 }
1165
1166
1167 /******************************************************************************
1168 * RegDeleteKeyW [ADVAPI32.@]
1169 *
1170 * See RegDeleteKeyA.
1171 */
1172 LSTATUS WINAPI RegDeleteKeyW( HKEY hkey, LPCWSTR name )
1173 {
1174 return RegDeleteKeyExW( hkey, name, 0, 0 );
1175 }
1176
1177
1178 /******************************************************************************
1179 * RegDeleteKeyExA [ADVAPI32.@]
1180 */
1181 LSTATUS WINAPI RegDeleteKeyExA( HKEY hkey, LPCSTR name, REGSAM access, DWORD reserved )
1182 {
1183 DWORD ret;
1184 HKEY tmp;
1185
1186 if (!name) return ERROR_INVALID_PARAMETER;
1187
1188 if (!(hkey = get_special_root_hkey( hkey, access ))) return ERROR_INVALID_HANDLE;
1189
1190 access &= KEY_WOW64_64KEY | KEY_WOW64_32KEY;
1191 if (!(ret = RegOpenKeyExA( hkey, name, 0, access | DELETE, &tmp )))
1192 {
1193 if (!is_version_nt()) /* win95 does recursive key deletes */
1194 {
1195 CHAR sub[MAX_PATH];
1196
1197 while(!RegEnumKeyA(tmp, 0, sub, sizeof(sub)))
1198 {
1199 if(RegDeleteKeyExA(tmp, sub, access, reserved)) /* recurse */
1200 break;
1201 }
1202 }
1203 ret = RtlNtStatusToDosError( NtDeleteKey( tmp ) );
1204 RegCloseKey( tmp );
1205 }
1206 TRACE("%s ret=%08x\n", debugstr_a(name), ret);
1207 return ret;
1208 }
1209
1210
1211 /******************************************************************************
1212 * RegDeleteKeyA [ADVAPI32.@]
1213 *
1214 * Delete a registry key.
1215 *
1216 * PARAMS
1217 * hkey [I] Handle to parent key containing the key to delete
1218 * name [I] Name of the key user hkey to delete
1219 *
1220 * NOTES
1221 *
1222 * MSDN is wrong when it says that hkey must be opened with the DELETE access
1223 * right. In reality, it opens a new handle with DELETE access.
1224 *
1225 * RETURNS
1226 * Success: ERROR_SUCCESS
1227 * Failure: Error code
1228 */
1229 LSTATUS WINAPI RegDeleteKeyA( HKEY hkey, LPCSTR name )
1230 {
1231 return RegDeleteKeyExA( hkey, name, 0, 0 );
1232 }
1233
1234
1235
1236 /******************************************************************************
1237 * RegSetValueExW [ADVAPI32.@]
1238 *
1239 * Set the data and contents of a registry value.
1240 *
1241 * PARAMS
1242 * hkey [I] Handle of key to set value for
1243 * name [I] Name of value to set
1244 * reserved [I] Reserved, must be zero
1245 * type [I] Type of the value being set
1246 * data [I] The new contents of the value to set
1247 * count [I] Size of data
1248 *
1249 * RETURNS
1250 * Success: ERROR_SUCCESS
1251 * Failure: Error code
1252 */
1253 LSTATUS WINAPI RegSetValueExW( HKEY hkey, LPCWSTR name, DWORD reserved,
1254 DWORD type, const BYTE *data, DWORD count )
1255 {
1256 UNICODE_STRING nameW;
1257
1258 /* no need for version check, not implemented on win9x anyway */
1259
1260 if ((data && ((ULONG_PTR)data >> 16) == 0) || (!data && count)) return ERROR_NOACCESS;
1261
1262 if (count && is_string(type))
1263 {
1264 LPCWSTR str = (LPCWSTR)data;
1265 /* if user forgot to count terminating null, add it (yes NT does this) */
1266 if (str[count / sizeof(WCHAR) - 1] && !str[count / sizeof(WCHAR)])
1267 count += sizeof(WCHAR);
1268 }
1269 if (!(hkey = get_special_root_hkey( hkey, 0 ))) return ERROR_INVALID_HANDLE;
1270
1271 RtlInitUnicodeString( &nameW, name );
1272 return RtlNtStatusToDosError( NtSetValueKey( hkey, &nameW, 0, type, data, count ) );
1273 }
1274
1275
1276 /******************************************************************************
1277 * RegSetValueExA [ADVAPI32.@]
1278 *
1279 * See RegSetValueExW.
1280 *
1281 * NOTES
1282 * win95 does not care about count for REG_SZ and finds out the len by itself (js)
1283 * NT does definitely care (aj)
1284 */
1285 LSTATUS WINAPI RegSetValueExA( HKEY hkey, LPCSTR name, DWORD reserved, DWORD type,
1286 const BYTE *data, DWORD count )
1287 {
1288 ANSI_STRING nameA;
1289 UNICODE_STRING nameW;
1290 WCHAR *dataW = NULL;
1291 NTSTATUS status;
1292
1293 if (!is_version_nt()) /* win95 */
1294 {
1295 if (type == REG_SZ)
1296 {
1297 if (!data) return ERROR_INVALID_PARAMETER;
1298 count = strlen((const char *)data) + 1;
1299 }
1300 }
1301 else if (count && is_string(type))
1302 {
1303 /* if user forgot to count terminating null, add it (yes NT does this) */
1304 if (data[count-1] && !data[count]) count++;
1305 }
1306
1307 if (!(hkey = get_special_root_hkey( hkey, 0 ))) return ERROR_INVALID_HANDLE;
1308
1309 if (is_string( type )) /* need to convert to Unicode */
1310 {
1311 DWORD lenW;
1312 RtlMultiByteToUnicodeSize( &lenW, (const char *)data, count );
1313 if (!(dataW = heap_alloc( lenW ))) return ERROR_OUTOFMEMORY;
1314 RtlMultiByteToUnicodeN( dataW, lenW, NULL, (const char *)data, count );
1315 count = lenW;
1316 data = (BYTE *)dataW;
1317 }
1318
1319 RtlInitAnsiString( &nameA, name );
1320 if (!(status = RtlAnsiStringToUnicodeString( &nameW, &nameA, TRUE )))
1321 {
1322 status = NtSetValueKey( hkey, &nameW, 0, type, data, count );
1323 RtlFreeUnicodeString( &nameW );
1324 }
1325 heap_free( dataW );
1326 return RtlNtStatusToDosError( status );
1327 }
1328
1329
1330 /******************************************************************************
1331 * RegSetValueW [ADVAPI32.@]
1332 *
1333 * Sets the data for the default or unnamed value of a reg key.
1334 *
1335 * PARAMS
1336 * hkey [I] Handle to an open key.
1337 * subkey [I] Name of a subkey of hKey.
1338 * type [I] Type of information to store.
1339 * data [I] String that contains the data to set for the default value.
1340 * count [I] Ignored.
1341 *
1342 * RETURNS
1343 * Success: ERROR_SUCCESS
1344 * Failure: nonzero error code from Winerror.h
1345 */
1346 LSTATUS WINAPI RegSetValueW( HKEY hkey, LPCWSTR subkey, DWORD type, LPCWSTR data, DWORD count )
1347 {
1348 TRACE("(%p,%s,%d,%s,%d)\n", hkey, debugstr_w(subkey), type, debugstr_w(data), count );
1349
1350 if (type != REG_SZ || !data) return ERROR_INVALID_PARAMETER;
1351
1352 return RegSetKeyValueW( hkey, subkey, NULL, type, data, (strlenW(data) + 1)*sizeof(WCHAR) );
1353 }
1354
1355 /******************************************************************************
1356 * RegSetValueA [ADVAPI32.@]
1357 *
1358 * See RegSetValueW.
1359 */
1360 LSTATUS WINAPI RegSetValueA( HKEY hkey, LPCSTR subkey, DWORD type, LPCSTR data, DWORD count )
1361 {
1362 TRACE("(%p,%s,%d,%s,%d)\n", hkey, debugstr_a(subkey), type, debugstr_a(data), count );
1363
1364 if (type != REG_SZ || !data) return ERROR_INVALID_PARAMETER;
1365
1366 return RegSetKeyValueA( hkey, subkey, NULL, type, data, strlen(data) + 1 );
1367 }
1368
1369 /******************************************************************************
1370 * RegSetKeyValueW [ADVAPI32.@]
1371 */
1372 LONG WINAPI RegSetKeyValueW( HKEY hkey, LPCWSTR subkey, LPCWSTR name, DWORD type, const void *data, DWORD len )
1373 {
1374 HKEY hsubkey = NULL;
1375 DWORD ret;
1376
1377 TRACE("(%p,%s,%s,%d,%p,%d)\n", hkey, debugstr_w(subkey), debugstr_w(name), type, data, len );
1378
1379 if (subkey && subkey[0]) /* need to create the subkey */
1380 {
1381 if ((ret = RegCreateKeyW( hkey, subkey, &hsubkey )) != ERROR_SUCCESS) return ret;
1382 hkey = hsubkey;
1383 }
1384
1385 ret = RegSetValueExW( hkey, name, 0, type, (const BYTE*)data, len );
1386 if (hsubkey) RegCloseKey( hsubkey );
1387 return ret;
1388 }
1389
1390 /******************************************************************************
1391 * RegSetKeyValueA [ADVAPI32.@]
1392 */
1393 LONG WINAPI RegSetKeyValueA( HKEY hkey, LPCSTR subkey, LPCSTR name, DWORD type, const void *data, DWORD len )
1394 {
1395 HKEY hsubkey = NULL;
1396 DWORD ret;
1397
1398 TRACE("(%p,%s,%s,%d,%p,%d)\n", hkey, debugstr_a(subkey), debugstr_a(name), type, data, len );
1399
1400 if (subkey && subkey[0]) /* need to create the subkey */
1401 {
1402 if ((ret = RegCreateKeyA( hkey, subkey, &hsubkey )) != ERROR_SUCCESS) return ret;
1403 hkey = hsubkey;
1404 }
1405
1406 ret = RegSetValueExA( hkey, name, 0, type, (const BYTE*)data, len );
1407 if (hsubkey) RegCloseKey( hsubkey );
1408 return ret;
1409 }
1410
1411 /******************************************************************************
1412 * RegQueryValueExW [ADVAPI32.@]
1413 *
1414 * See RegQueryValueExA.
1415 */
1416 LSTATUS WINAPI RegQueryValueExW( HKEY hkey, LPCWSTR name, LPDWORD reserved, LPDWORD type,
1417 LPBYTE data, LPDWORD count )
1418 {
1419 NTSTATUS status;
1420 UNICODE_STRING name_str;
1421 DWORD total_size;
1422 char buffer[256], *buf_ptr = buffer;
1423 KEY_VALUE_PARTIAL_INFORMATION *info = (KEY_VALUE_PARTIAL_INFORMATION *)buffer;
1424 static const int info_size = offsetof( KEY_VALUE_PARTIAL_INFORMATION, Data );
1425
1426 TRACE("(%p,%s,%p,%p,%p,%p=%d)\n",
1427 hkey, debugstr_w(name), reserved, type, data, count,
1428 (count && data) ? *count : 0 );
1429
1430 if ((data && !count) || reserved) return ERROR_INVALID_PARAMETER;
1431 if (!(hkey = get_special_root_hkey( hkey, 0 ))) return ERROR_INVALID_HANDLE;
1432
1433 RtlInitUnicodeString( &name_str, name );
1434
1435 if (data) total_size = min( sizeof(buffer), *count + info_size );
1436 else
1437 {
1438 total_size = info_size;
1439 if (count) *count = 0;
1440 }
1441
1442 status = NtQueryValueKey( hkey, &name_str, KeyValuePartialInformation,
1443 buffer, total_size, &total_size );
1444 if (status && status != STATUS_BUFFER_OVERFLOW) goto done;
1445
1446 if (data)
1447 {
1448 /* retry with a dynamically allocated buffer */
1449 while (status == STATUS_BUFFER_OVERFLOW && total_size - info_size <= *count)
1450 {
1451 if (buf_ptr != buffer) heap_free( buf_ptr );
1452 if (!(buf_ptr = heap_alloc( total_size )))
1453 return ERROR_NOT_ENOUGH_MEMORY;
1454 info = (KEY_VALUE_PARTIAL_INFORMATION *)buf_ptr;
1455 status = NtQueryValueKey( hkey, &name_str, KeyValuePartialInformation,
1456 buf_ptr, total_size, &total_size );
1457 }
1458
1459 if (!status)
1460 {
1461 memcpy( data, buf_ptr + info_size, total_size - info_size );
1462 /* if the type is REG_SZ and data is not 0-terminated
1463 * and there is enough space in the buffer NT appends a \0 */
1464 if (total_size - info_size <= *count-sizeof(WCHAR) && is_string(info->Type))
1465 {
1466 WCHAR *ptr = (WCHAR *)(data + total_size - info_size);
1467 if (ptr > (WCHAR *)data && ptr[-1]) *ptr = 0;
1468 }
1469 }
1470 else if (status != STATUS_BUFFER_OVERFLOW) goto done;
1471 }
1472 else status = STATUS_SUCCESS;
1473
1474 if (type) *type = info->Type;
1475 if (count) *count = total_size - info_size;
1476
1477 done:
1478 if (buf_ptr != buffer) heap_free( buf_ptr );
1479 return RtlNtStatusToDosError(status);
1480 }
1481
1482
1483 /******************************************************************************
1484 * RegQueryValueExA [ADVAPI32.@]
1485 *
1486 * Get the type and contents of a specified value under with a key.
1487 *
1488 * PARAMS
1489 * hkey [I] Handle of the key to query
1490 * name [I] Name of value under hkey to query
1491 * reserved [I] Reserved - must be NULL
1492 * type [O] Destination for the value type, or NULL if not required
1493 * data [O] Destination for the values contents, or NULL if not required
1494 * count [I/O] Size of data, updated with the number of bytes returned
1495 *
1496 * RETURNS
1497 * Success: ERROR_SUCCESS. *count is updated with the number of bytes copied to data.
1498 * Failure: ERROR_INVALID_HANDLE, if hkey is invalid.
1499 * ERROR_INVALID_PARAMETER, if any other parameter is invalid.
1500 * ERROR_MORE_DATA, if on input *count is too small to hold the contents.
1501 *
1502 * NOTES
1503 * MSDN states that if data is too small it is partially filled. In reality
1504 * it remains untouched.
1505 */
1506 LSTATUS WINAPI DECLSPEC_HOTPATCH RegQueryValueExA( HKEY hkey, LPCSTR name, LPDWORD reserved,
1507 LPDWORD type, LPBYTE data, LPDWORD count )
1508 {
1509 NTSTATUS status;
1510 ANSI_STRING nameA;
1511 UNICODE_STRING nameW;
1512 DWORD total_size, datalen = 0;
1513 char buffer[256], *buf_ptr = buffer;
1514 KEY_VALUE_PARTIAL_INFORMATION *info = (KEY_VALUE_PARTIAL_INFORMATION *)buffer;
1515 static const int info_size = offsetof( KEY_VALUE_PARTIAL_INFORMATION, Data );
1516
1517 TRACE("(%p,%s,%p,%p,%p,%p=%d)\n",
1518 hkey, debugstr_a(name), reserved, type, data, count, count ? *count : 0 );
1519
1520 if ((data && !count) || reserved) return ERROR_INVALID_PARAMETER;
1521 if (!(hkey = get_special_root_hkey( hkey, 0 ))) return ERROR_INVALID_HANDLE;
1522
1523 if (count) datalen = *count;
1524 if (!data && count) *count = 0;
1525
1526 /* this matches Win9x behaviour - NT sets *type to a random value */
1527 if (type) *type = REG_NONE;
1528
1529 RtlInitAnsiString( &nameA, name );
1530 if ((status = RtlAnsiStringToUnicodeString( &nameW, &nameA, TRUE )))
1531 return RtlNtStatusToDosError(status);
1532
1533 status = NtQueryValueKey( hkey, &nameW, KeyValuePartialInformation,
1534 buffer, sizeof(buffer), &total_size );
1535 if (status && status != STATUS_BUFFER_OVERFLOW) goto done;
1536
1537 /* we need to fetch the contents for a string type even if not requested,
1538 * because we need to compute the length of the ASCII string. */
1539 if (data || is_string(info->Type))
1540 {
1541 /* retry with a dynamically allocated buffer */
1542 while (status == STATUS_BUFFER_OVERFLOW)
1543 {
1544 if (buf_ptr != buffer) heap_free( buf_ptr );
1545 if (!(buf_ptr = heap_alloc( total_size )))
1546 {
1547 status = STATUS_NO_MEMORY;
1548 goto done;
1549 }
1550 info = (KEY_VALUE_PARTIAL_INFORMATION *)buf_ptr;
1551 status = NtQueryValueKey( hkey, &nameW, KeyValuePartialInformation,
1552 buf_ptr, total_size, &total_size );
1553 }
1554
1555 if (status) goto done;
1556
1557 if (is_string(info->Type))
1558 {
1559 DWORD len;
1560
1561 RtlUnicodeToMultiByteSize( &len, (WCHAR *)(buf_ptr + info_size),
1562 total_size - info_size );
1563 if (data && len)
1564 {
1565 if (len > datalen) status = STATUS_BUFFER_OVERFLOW;
1566 else
1567 {
1568 RtlUnicodeToMultiByteN( (char*)data, len, NULL, (WCHAR *)(buf_ptr + info_size),
1569 total_size - info_size );
1570 /* if the type is REG_SZ and data is not 0-terminated
1571 * and there is enough space in the buffer NT appends a \0 */
1572 if (len < datalen && data[len-1]) data[len] = 0;
1573 }
1574 }
1575 total_size = len + info_size;
1576 }
1577 else if (data)
1578 {
1579 if (total_size - info_size > datalen) status = STATUS_BUFFER_OVERFLOW;
1580 else memcpy( data, buf_ptr + info_size, total_size - info_size );
1581 }
1582 }
1583 else status = STATUS_SUCCESS;
1584
1585 if (type) *type = info->Type;
1586 if (count) *count = total_size - info_size;
1587
1588 done:
1589 if (buf_ptr != buffer) heap_free( buf_ptr );
1590 RtlFreeUnicodeString( &nameW );
1591 return RtlNtStatusToDosError(status);
1592 }
1593
1594
1595 /******************************************************************************
1596 * RegQueryValueW [ADVAPI32.@]
1597 *
1598 * Retrieves the data associated with the default or unnamed value of a key.
1599 *
1600 * PARAMS
1601 * hkey [I] Handle to an open key.
1602 * name [I] Name of the subkey of hKey.
1603 * data [O] Receives the string associated with the default value
1604 * of the key.
1605 * count [I/O] Size of lpValue in bytes.
1606 *
1607 * RETURNS
1608 * Success: ERROR_SUCCESS
1609 * Failure: nonzero error code from Winerror.h
1610 */
1611 LSTATUS WINAPI RegQueryValueW( HKEY hkey, LPCWSTR name, LPWSTR data, LPLONG count )
1612 {
1613 DWORD ret;
1614 HKEY subkey = hkey;
1615
1616 TRACE("(%p,%s,%p,%d)\n", hkey, debugstr_w(name), data, count ? *count : 0 );
1617
1618 if (name && name[0])
1619 {
1620 if ((ret = RegOpenKeyW( hkey, name, &subkey )) != ERROR_SUCCESS) return ret;
1621 }
1622 ret = RegQueryValueExW( subkey, NULL, NULL, NULL, (LPBYTE)data, (LPDWORD)count );
1623 if (subkey != hkey) RegCloseKey( subkey );
1624 if (ret == ERROR_FILE_NOT_FOUND)
1625 {
1626 /* return empty string if default value not found */
1627 if (data) *data = 0;
1628 if (count) *count = sizeof(WCHAR);
1629 ret = ERROR_SUCCESS;
1630 }
1631 return ret;
1632 }
1633
1634
1635 /******************************************************************************
1636 * RegQueryValueA [ADVAPI32.@]
1637 *
1638 * See RegQueryValueW.
1639 */
1640 LSTATUS WINAPI RegQueryValueA( HKEY hkey, LPCSTR name, LPSTR data, LPLONG count )
1641 {
1642 DWORD ret;
1643 HKEY subkey = hkey;
1644
1645 TRACE("(%p,%s,%p,%d)\n", hkey, debugstr_a(name), data, count ? *count : 0 );
1646
1647 if (name && name[0])
1648 {
1649 if ((ret = RegOpenKeyA( hkey, name, &subkey )) != ERROR_SUCCESS) return ret;
1650 }
1651 ret = RegQueryValueExA( subkey, NULL, NULL, NULL, (LPBYTE)data, (LPDWORD)count );
1652 if (subkey != hkey) RegCloseKey( subkey );
1653 if (ret == ERROR_FILE_NOT_FOUND)
1654 {
1655 /* return empty string if default value not found */
1656 if (data) *data = 0;
1657 if (count) *count = 1;
1658 ret = ERROR_SUCCESS;
1659 }
1660 return ret;
1661 }
1662
1663
1664 /******************************************************************************
1665 * ADVAPI_ApplyRestrictions [internal]
1666 *
1667 * Helper function for RegGetValueA/W.
1668 */
1669 static VOID ADVAPI_ApplyRestrictions( DWORD dwFlags, DWORD dwType,
1670 DWORD cbData, PLONG ret )
1671 {
1672 /* Check if the type is restricted by the passed flags */
1673 if (*ret == ERROR_SUCCESS || *ret == ERROR_MORE_DATA)
1674 {
1675 DWORD dwMask = 0;
1676
1677 switch (dwType)
1678 {
1679 case REG_NONE: dwMask = RRF_RT_REG_NONE; break;
1680 case REG_SZ: dwMask = RRF_RT_REG_SZ; break;
1681 case REG_EXPAND_SZ: dwMask = RRF_RT_REG_EXPAND_SZ; break;
1682 case REG_MULTI_SZ: dwMask = RRF_RT_REG_MULTI_SZ; break;
1683 case REG_BINARY: dwMask = RRF_RT_REG_BINARY; break;
1684 case REG_DWORD: dwMask = RRF_RT_REG_DWORD; break;
1685 case REG_QWORD: dwMask = RRF_RT_REG_QWORD; break;
1686 }
1687
1688 if (dwFlags & dwMask)
1689 {
1690 /* Type is not restricted, check for size mismatch */
1691 if (dwType == REG_BINARY)
1692 {
1693 DWORD cbExpect = 0;
1694
1695 if ((dwFlags & RRF_RT_ANY) == RRF_RT_DWORD)
1696 cbExpect = 4;
1697 else if ((dwFlags & RRF_RT_ANY) == RRF_RT_QWORD)
1698 cbExpect = 8;
1699
1700 if (cbExpect && cbData != cbExpect)
1701 *ret = ERROR_DATATYPE_MISMATCH;
1702 }
1703 }
1704 else *ret = ERROR_UNSUPPORTED_TYPE;
1705 }
1706 }
1707
1708
1709 /******************************************************************************
1710 * RegGetValueW [ADVAPI32.@]
1711 *
1712 * Retrieves the type and data for a value name associated with a key,
1713 * optionally expanding its content and restricting its type.
1714 *
1715 * PARAMS
1716 * hKey [I] Handle to an open key.
1717 * pszSubKey [I] Name of the subkey of hKey.
1718 * pszValue [I] Name of value under hKey/szSubKey to query.
1719 * dwFlags [I] Flags restricting the value type to retrieve.
1720 * pdwType [O] Destination for the values type, may be NULL.
1721 * pvData [O] Destination for the values content, may be NULL.
1722 * pcbData [I/O] Size of pvData, updated with the size in bytes required to
1723 * retrieve the whole content, including the trailing '\0'
1724 * for strings.
1725 *
1726 * RETURNS
1727 * Success: ERROR_SUCCESS
1728 * Failure: nonzero error code from Winerror.h
1729 *
1730 * NOTES
1731 * - Unless RRF_NOEXPAND is specified, REG_EXPAND_SZ values are automatically
1732 * expanded and pdwType is set to REG_SZ instead.
1733 * - Restrictions are applied after expanding, using RRF_RT_REG_EXPAND_SZ
1734 * without RRF_NOEXPAND is thus not allowed.
1735 * An exception is the case where RRF_RT_ANY is specified, because then
1736 * RRF_NOEXPAND is allowed.
1737 */
1738 LSTATUS WINAPI RegGetValueW( HKEY hKey, LPCWSTR pszSubKey, LPCWSTR pszValue,
1739 DWORD dwFlags, LPDWORD pdwType, PVOID pvData,
1740 LPDWORD pcbData )
1741 {
1742 DWORD dwType, cbData = pcbData ? *pcbData : 0;
1743 PVOID pvBuf = NULL;
1744 LONG ret;
1745
1746 TRACE("(%p,%s,%s,%d,%p,%p,%p=%d)\n",
1747 hKey, debugstr_w(pszSubKey), debugstr_w(pszValue), dwFlags, pdwType,
1748 pvData, pcbData, cbData);
1749
1750 if (pvData && !pcbData)
1751 return ERROR_INVALID_PARAMETER;
1752 if ((dwFlags & RRF_RT_REG_EXPAND_SZ) && !(dwFlags & RRF_NOEXPAND) &&
1753 ((dwFlags & RRF_RT_ANY) != RRF_RT_ANY))
1754 return ERROR_INVALID_PARAMETER;
1755
1756 if (pszSubKey && pszSubKey[0])
1757 {
1758 ret = RegOpenKeyExW(hKey, pszSubKey, 0, KEY_QUERY_VALUE, &hKey);
1759 if (ret != ERROR_SUCCESS) return ret;
1760 }
1761
1762 ret = RegQueryValueExW(hKey, pszValue, NULL, &dwType, pvData, &cbData);
1763
1764 /* If we are going to expand we need to read in the whole the value even
1765 * if the passed buffer was too small as the expanded string might be
1766 * smaller than the unexpanded one and could fit into cbData bytes. */
1767 if ((ret == ERROR_SUCCESS || ret == ERROR_MORE_DATA) &&
1768 dwType == REG_EXPAND_SZ && !(dwFlags & RRF_NOEXPAND))
1769 {
1770 do {
1771 heap_free(pvBuf);
1772
1773 pvBuf = heap_alloc(cbData);
1774 if (!pvBuf)
1775 {
1776 ret = ERROR_NOT_ENOUGH_MEMORY;
1777 break;
1778 }
1779
1780 if (ret == ERROR_MORE_DATA || !pvData)
1781 ret = RegQueryValueExW(hKey, pszValue, NULL,
1782 &dwType, pvBuf, &cbData);
1783 else
1784 {
1785 /* Even if cbData was large enough we have to copy the
1786 * string since ExpandEnvironmentStrings can't handle
1787 * overlapping buffers. */
1788 CopyMemory(pvBuf, pvData, cbData);
1789 }
1790
1791 /* Both the type or the value itself could have been modified in
1792 * between so we have to keep retrying until the buffer is large
1793 * enough or we no longer have to expand the value. */
1794 } while (dwType == REG_EXPAND_SZ && ret == ERROR_MORE_DATA);
1795
1796 if (ret == ERROR_SUCCESS)
1797 {
1798 /* Recheck dwType in case it changed since the first call */
1799 if (dwType == REG_EXPAND_SZ)
1800 {
1801 cbData = ExpandEnvironmentStringsW(pvBuf, pvData,
1802 pcbData ? *pcbData : 0) * sizeof(WCHAR);
1803 dwType = REG_SZ;
1804 if(pvData && pcbData && cbData > *pcbData)
1805 ret = ERROR_MORE_DATA;
1806 }
1807 else if (pvData)
1808 CopyMemory(pvData, pvBuf, *pcbData);
1809 }
1810
1811 heap_free(pvBuf);
1812 }
1813
1814 if (pszSubKey && pszSubKey[0])
1815 RegCloseKey(hKey);
1816
1817 ADVAPI_ApplyRestrictions(dwFlags, dwType, cbData, &ret);
1818
1819 if (pvData && ret != ERROR_SUCCESS && (dwFlags & RRF_ZEROONFAILURE))
1820 ZeroMemory(pvData, *pcbData);
1821
1822 if (pdwType) *pdwType = dwType;
1823 if (pcbData) *pcbData = cbData;
1824
1825 return ret;
1826 }
1827
1828
1829 /******************************************************************************
1830 * RegGetValueA [ADVAPI32.@]
1831 *
1832 * See RegGetValueW.
1833 */
1834 LSTATUS WINAPI RegGetValueA( HKEY hKey, LPCSTR pszSubKey, LPCSTR pszValue,
1835 DWORD dwFlags, LPDWORD pdwType, PVOID pvData,
1836 LPDWORD pcbData )
1837 {
1838 DWORD dwType, cbData = pcbData ? *pcbData : 0;
1839 PVOID pvBuf = NULL;
1840 LONG ret;
1841
1842 TRACE("(%p,%s,%s,%d,%p,%p,%p=%d)\n",
1843 hKey, debugstr_a(pszSubKey), debugstr_a(pszValue), dwFlags,
1844 pdwType, pvData, pcbData, cbData);
1845
1846 if (pvData && !pcbData)
1847 return ERROR_INVALID_PARAMETER;
1848 if ((dwFlags & RRF_RT_REG_EXPAND_SZ) && !(dwFlags & RRF_NOEXPAND) &&
1849 ((dwFlags & RRF_RT_ANY) != RRF_RT_ANY))
1850 return ERROR_INVALID_PARAMETER;
1851
1852 if (pszSubKey && pszSubKey[0])
1853 {
1854 ret = RegOpenKeyExA(hKey, pszSubKey, 0, KEY_QUERY_VALUE, &hKey);
1855 if (ret != ERROR_SUCCESS) return ret;
1856 }
1857
1858 ret = RegQueryValueExA(hKey, pszValue, NULL, &dwType, pvData, &cbData);
1859
1860 /* If we are going to expand we need to read in the whole the value even
1861 * if the passed buffer was too small as the expanded string might be
1862 * smaller than the unexpanded one and could fit into cbData bytes. */
1863 if ((ret == ERROR_SUCCESS || ret == ERROR_MORE_DATA) &&
1864 dwType == REG_EXPAND_SZ && !(dwFlags & RRF_NOEXPAND))
1865 {
1866 do {
1867 heap_free(pvBuf);
1868
1869 pvBuf = heap_alloc(cbData);
1870 if (!pvBuf)
1871 {
1872 ret = ERROR_NOT_ENOUGH_MEMORY;
1873 break;
1874 }
1875
1876 if (ret == ERROR_MORE_DATA || !pvData)
1877 ret = RegQueryValueExA(hKey, pszValue, NULL,
1878 &dwType, pvBuf, &cbData);
1879 else
1880 {
1881 /* Even if cbData was large enough we have to copy the
1882 * string since ExpandEnvironmentStrings can't handle
1883 * overlapping buffers. */
1884 CopyMemory(pvBuf, pvData, cbData);
1885 }
1886
1887 /* Both the type or the value itself could have been modified in
1888 * between so we have to keep retrying until the buffer is large
1889 * enough or we no longer have to expand the value. */
1890 } while (dwType == REG_EXPAND_SZ && ret == ERROR_MORE_DATA);
1891
1892 if (ret == ERROR_SUCCESS)
1893 {
1894 /* Recheck dwType in case it changed since the first call */
1895 if (dwType == REG_EXPAND_SZ)
1896 {
1897 cbData = ExpandEnvironmentStringsA(pvBuf, pvData,
1898 pcbData ? *pcbData : 0);
1899 dwType = REG_SZ;
1900 if(pvData && pcbData && cbData > *pcbData)
1901 ret = ERROR_MORE_DATA;
1902 }
1903 else if (pvData)
1904 CopyMemory(pvData, pvBuf, *pcbData);
1905 }
1906
1907 heap_free(pvBuf);
1908 }
1909
1910 if (pszSubKey && pszSubKey[0])
1911 RegCloseKey(hKey);
1912
1913 ADVAPI_ApplyRestrictions(dwFlags, dwType, cbData, &ret);
1914
1915 if (pvData && ret != ERROR_SUCCESS && (dwFlags & RRF_ZEROONFAILURE))
1916 ZeroMemory(pvData, *pcbData);
1917
1918 if (pdwType) *pdwType = dwType;
1919 if (pcbData) *pcbData = cbData;
1920
1921 return ret;
1922 }
1923
1924
1925 /******************************************************************************
1926 * RegEnumValueW [ADVAPI32.@]
1927 *
1928 * Enumerates the values for the specified open registry key.
1929 *
1930 * PARAMS
1931 * hkey [I] Handle to key to query
1932 * index [I] Index of value to query
1933 * value [O] Value string
1934 * val_count [I/O] Size of value buffer (in wchars)
1935 * reserved [I] Reserved
1936 * type [O] Type code
1937 * data [O] Value data
1938 * count [I/O] Size of data buffer (in bytes)
1939 *
1940 * RETURNS
1941 * Success: ERROR_SUCCESS
1942 * Failure: nonzero error code from Winerror.h
1943 */
1944
1945 LSTATUS WINAPI RegEnumValueW( HKEY hkey, DWORD index, LPWSTR value, LPDWORD val_count,
1946 LPDWORD reserved, LPDWORD type, LPBYTE data, LPDWORD count )
1947 {
1948 NTSTATUS status;
1949 DWORD total_size;
1950 char buffer[256], *buf_ptr = buffer;
1951 KEY_VALUE_FULL_INFORMATION *info = (KEY_VALUE_FULL_INFORMATION *)buffer;
1952 static const int info_size = offsetof( KEY_VALUE_FULL_INFORMATION, Name );
1953
1954 TRACE("(%p,%d,%p,%p,%p,%p,%p,%p)\n",
1955 hkey, index, value, val_count, reserved, type, data, count );
1956
1957 if ((data && !count) || reserved || !value || !val_count)
1958 return ERROR_INVALID_PARAMETER;
1959 if (!(hkey = get_special_root_hkey( hkey, 0 ))) return ERROR_INVALID_HANDLE;
1960
1961 total_size = info_size + (MAX_PATH + 1) * sizeof(WCHAR);
1962 if (data) total_size += *count;
1963 total_size = min( sizeof(buffer), total_size );
1964
1965 status = NtEnumerateValueKey( hkey, index, KeyValueFullInformation,
1966 buffer, total_size, &total_size );
1967
1968 /* retry with a dynamically allocated buffer */
1969 while (status == STATUS_BUFFER_OVERFLOW)
1970 {
1971 if (buf_ptr != buffer) heap_free( buf_ptr );
1972 if (!(buf_ptr = heap_alloc( total_size )))
1973 return ERROR_NOT_ENOUGH_MEMORY;
1974 info = (KEY_VALUE_FULL_INFORMATION *)buf_ptr;
1975 status = NtEnumerateValueKey( hkey, index, KeyValueFullInformation,
1976 buf_ptr, total_size, &total_size );
1977 }
1978
1979 if (status) goto done;
1980
1981 if (info->NameLength/sizeof(WCHAR) >= *val_count)
1982 {
1983 status = STATUS_BUFFER_OVERFLOW;
1984 goto overflow;
1985 }
1986 memcpy( value, info->Name, info->NameLength );
1987 *val_count = info->NameLength / sizeof(WCHAR);
1988 value[*val_count] = 0;
1989
1990 if (data)
1991 {
1992 if (total_size - info->DataOffset > *count)
1993 {
1994 status = STATUS_BUFFER_OVERFLOW;
1995 goto overflow;
1996 }
1997 memcpy( data, buf_ptr + info->DataOffset, total_size - info->DataOffset );
1998 if (total_size - info->DataOffset <= *count-sizeof(WCHAR) && is_string(info->Type))
1999 {
2000 /* if the type is REG_SZ and data is not 0-terminated
2001 * and there is enough space in the buffer NT appends a \0 */
2002 WCHAR *ptr = (WCHAR *)(data + total_size - info->DataOffset);
2003 if (ptr > (WCHAR *)data && ptr[-1]) *ptr = 0;
2004 }
2005 }
2006
2007 overflow:
2008 if (type) *type = info->Type;
2009 if (count) *count = info->DataLength;
2010
2011 done:
2012 if (buf_ptr != buffer) heap_free( buf_ptr );
2013 return RtlNtStatusToDosError(status);
2014 }
2015
2016
2017 /******************************************************************************
2018 * RegEnumValueA [ADVAPI32.@]
2019 *
2020 * See RegEnumValueW.
2021 */
2022 LSTATUS WINAPI RegEnumValueA( HKEY hkey, DWORD index, LPSTR value, LPDWORD val_count,
2023 LPDWORD reserved, LPDWORD type, LPBYTE data, LPDWORD count )
2024 {
2025 NTSTATUS status;
2026 DWORD total_size;
2027 char buffer[256], *buf_ptr = buffer;
2028 KEY_VALUE_FULL_INFORMATION *info = (KEY_VALUE_FULL_INFORMATION *)buffer;
2029 static const int info_size = offsetof( KEY_VALUE_FULL_INFORMATION, Name );
2030
2031 TRACE("(%p,%d,%p,%p,%p,%p,%p,%p)\n",
2032 hkey, index, value, val_count, reserved, type, data, count );
2033
2034 if ((data && !count) || reserved || !value || !val_count)
2035 return ERROR_INVALID_PARAMETER;
2036 if (!(hkey = get_special_root_hkey( hkey, 0 ))) return ERROR_INVALID_HANDLE;
2037
2038 total_size = info_size + (MAX_PATH + 1) * sizeof(WCHAR);
2039 if (data) total_size += *count;
2040 total_size = min( sizeof(buffer), total_size );
2041
2042 status = NtEnumerateValueKey( hkey, index, KeyValueFullInformation,
2043 buffer, total_size, &total_size );
2044
2045 /* we need to fetch the contents for a string type even if not requested,
2046 * because we need to compute the length of the ASCII string. */
2047
2048 /* retry with a dynamically allocated buffer */
2049 while (status == STATUS_BUFFER_OVERFLOW)
2050 {
2051 if (buf_ptr != buffer) heap_free( buf_ptr );
2052 if (!(buf_ptr = heap_alloc( total_size )))
2053 return ERROR_NOT_ENOUGH_MEMORY;
2054 info = (KEY_VALUE_FULL_INFORMATION *)buf_ptr;
2055 status = NtEnumerateValueKey( hkey, index, KeyValueFullInformation,
2056 buf_ptr, total_size, &total_size );
2057 }
2058
2059 if (status) goto done;
2060
2061 if (is_string(info->Type))
2062 {
2063 DWORD len;
2064 RtlUnicodeToMultiByteSize( &len, (WCHAR *)(buf_ptr + info->DataOffset),
2065 total_size - info->DataOffset );
2066 if (data && len)
2067 {
2068 if (len > *count) status = STATUS_BUFFER_OVERFLOW;
2069 else
2070 {
2071 RtlUnicodeToMultiByteN( (char*)data, len, NULL, (WCHAR *)(buf_ptr + info->DataOffset),
2072 total_size - info->DataOffset );
2073 /* if the type is REG_SZ and data is not 0-terminated
2074 * and there is enough space in the buffer NT appends a \0 */
2075 if (len < *count && data[len-1]) data[len] = 0;
2076 }
2077 }
2078 info->DataLength = len;
2079 }
2080 else if (data)
2081 {
2082 if (total_size - info->DataOffset > *count) status = STATUS_BUFFER_OVERFLOW;
2083 else memcpy( data, buf_ptr + info->DataOffset, total_size - info->DataOffset );
2084 }
2085
2086 if (!status)
2087 {
2088 DWORD len;
2089
2090 RtlUnicodeToMultiByteSize( &len, info->Name, info->NameLength );
2091 if (len >= *val_count)
2092 {
2093 status = STATUS_BUFFER_OVERFLOW;
2094 if (*val_count)
2095 {
2096 len = *val_count - 1;
2097 RtlUnicodeToMultiByteN( value, len, NULL, info->Name, info->NameLength );
2098 value[len] = 0;
2099 }
2100 }
2101 else
2102 {
2103 RtlUnicodeToMultiByteN( value, len, NULL, info->Name, info->NameLength );
2104 value[len] = 0;
2105 *val_count = len;
2106 }
2107 }
2108
2109 if (type) *type = info->Type;
2110 if (count) *count = info->DataLength;
2111
2112 done:
2113 if (buf_ptr != buffer) heap_free( buf_ptr );
2114 return RtlNtStatusToDosError(status);
2115 }
2116
2117 /******************************************************************************
2118 * RegDeleteValueW [ADVAPI32.@]
2119 *
2120 * See RegDeleteValueA.
2121 */
2122 LSTATUS WINAPI RegDeleteValueW( HKEY hkey, LPCWSTR name )
2123 {
2124 return RegDeleteKeyValueW( hkey, NULL, name );
2125 }
2126
2127 /******************************************************************************
2128 * RegDeleteValueA [ADVAPI32.@]
2129 *
2130 * Delete a value from the registry.
2131 *
2132 * PARAMS
2133 * hkey [I] Registry handle of the key holding the value
2134 * name [I] Name of the value under hkey to delete
2135 *
2136 * RETURNS
2137 * Success: ERROR_SUCCESS
2138 * Failure: nonzero error code from Winerror.h
2139 */
2140 LSTATUS WINAPI RegDeleteValueA( HKEY hkey, LPCSTR name )
2141 {
2142 return RegDeleteKeyValueA( hkey, NULL, name );
2143 }
2144
2145 /******************************************************************************
2146 * RegDeleteKeyValueW [ADVAPI32.@]
2147 */
2148 LONG WINAPI RegDeleteKeyValueW( HKEY hkey, LPCWSTR subkey, LPCWSTR name )
2149 {
2150 UNICODE_STRING nameW;
2151 HKEY hsubkey = 0;
2152 LONG ret;
2153
2154 if (!(hkey = get_special_root_hkey( hkey, 0 ))) return ERROR_INVALID_HANDLE;
2155
2156 if (subkey)
2157 {
2158 if ((ret = RegOpenKeyExW( hkey, subkey, 0, KEY_SET_VALUE, &hsubkey )))
2159 return ret;
2160 hkey = hsubkey;
2161 }
2162
2163 RtlInitUnicodeString( &nameW, name );
2164 ret = RtlNtStatusToDosError( NtDeleteValueKey( hkey, &nameW ) );
2165 if (hsubkey) RegCloseKey( hsubkey );
2166 return ret;
2167 }
2168
2169 /******************************************************************************
2170 * RegDeleteKeyValueA [ADVAPI32.@]
2171 */
2172 LONG WINAPI RegDeleteKeyValueA( HKEY hkey, LPCSTR subkey, LPCSTR name )
2173 {
2174 UNICODE_STRING nameW;
2175 HKEY hsubkey = 0;
2176 ANSI_STRING nameA;
2177 NTSTATUS status;
2178
2179 if (!(hkey = get_special_root_hkey( hkey, 0 ))) return ERROR_INVALID_HANDLE;
2180
2181 if (subkey)
2182 {
2183 LONG ret = RegOpenKeyExA( hkey, subkey, 0, KEY_SET_VALUE, &hsubkey );
2184 if (ret)
2185 return ret;
2186 hkey = hsubkey;
2187 }
2188
2189 RtlInitAnsiString( &nameA, name );
2190 if (!(status = RtlAnsiStringToUnicodeString( &nameW, &nameA, TRUE )))
2191 {
2192 status = NtDeleteValueKey( hkey, &nameW );
2193 RtlFreeUnicodeString( &nameW );
2194 }
2195
2196 if (hsubkey) RegCloseKey( hsubkey );
2197 return RtlNtStatusToDosError( status );
2198 }
2199
2200 /******************************************************************************
2201 * RegLoadKeyW [ADVAPI32.@]
2202 *
2203 * Create a subkey under HKEY_USERS or HKEY_LOCAL_MACHINE and store
2204 * registration information from a specified file into that subkey.
2205 *
2206 * PARAMS
2207 * hkey [I] Handle of open key
2208 * subkey [I] Address of name of subkey
2209 * filename [I] Address of filename for registry information
2210 *
2211 * RETURNS
2212 * Success: ERROR_SUCCESS
2213 * Failure: nonzero error code from Winerror.h
2214 */
2215 LSTATUS WINAPI RegLoadKeyW( HKEY hkey, LPCWSTR subkey, LPCWSTR filename )
2216 {
2217 OBJECT_ATTRIBUTES destkey, file;
2218 UNICODE_STRING subkeyW, filenameW;
2219 NTSTATUS status;
2220
2221 if (!(hkey = get_special_root_hkey(hkey, 0))) return ERROR_INVALID_HANDLE;
2222
2223 destkey.Length = sizeof(destkey);
2224 destkey.RootDirectory = hkey; /* root key: HKLM or HKU */
2225 destkey.ObjectName = &subkeyW; /* name of the key */
2226 destkey.Attributes = 0;
2227 destkey.SecurityDescriptor = NULL;
2228 destkey.SecurityQualityOfService = NULL;
2229 RtlInitUnicodeString(&subkeyW, subkey);
2230
2231 file.Length = sizeof(file);
2232 file.RootDirectory = NULL;
2233 file.ObjectName = &filenameW; /* file containing the hive */
2234 file.Attributes = OBJ_CASE_INSENSITIVE;
2235 file.SecurityDescriptor = NULL;
2236 file.SecurityQualityOfService = NULL;
2237 RtlDosPathNameToNtPathName_U(filename, &filenameW, NULL, NULL);
2238
2239 status = NtLoadKey(&destkey, &file);
2240 RtlFreeUnicodeString(&filenameW);
2241 return RtlNtStatusToDosError( status );
2242 }
2243
2244
2245 /******************************************************************************
2246 * RegLoadKeyA [ADVAPI32.@]
2247 *
2248 * See RegLoadKeyW.
2249 */
2250 LSTATUS WINAPI RegLoadKeyA( HKEY hkey, LPCSTR subkey, LPCSTR filename )
2251 {
2252 UNICODE_STRING subkeyW, filenameW;
2253 STRING subkeyA, filenameA;
2254 NTSTATUS status;
2255 LONG ret;
2256
2257 RtlInitAnsiString(&subkeyA, subkey);
2258 RtlInitAnsiString(&filenameA, filename);
2259
2260 RtlInitUnicodeString(&subkeyW, NULL);
2261 RtlInitUnicodeString(&filenameW, NULL);
2262 if (!(status = RtlAnsiStringToUnicodeString(&subkeyW, &subkeyA, TRUE)) &&
2263 !(status = RtlAnsiStringToUnicodeString(&filenameW, &filenameA, TRUE)))
2264 {
2265 ret = RegLoadKeyW(hkey, subkeyW.Buffer, filenameW.Buffer);
2266 }
2267 else ret = RtlNtStatusToDosError(status);
2268 RtlFreeUnicodeString(&subkeyW);
2269 RtlFreeUnicodeString(&filenameW);
2270 return ret;
2271 }
2272
2273
2274 /******************************************************************************
2275 * RegSaveKeyW [ADVAPI32.@]
2276 *
2277 * Save a key and all of its subkeys and values to a new file in the standard format.
2278 *
2279 * PARAMS
2280 * hkey [I] Handle of key where save begins
2281 * lpFile [I] Address of filename to save to
2282 * sa [I] Address of security structure
2283 *
2284 * RETURNS
2285 * Success: ERROR_SUCCESS
2286 * Failure: nonzero error code from Winerror.h
2287 */
2288 LSTATUS WINAPI RegSaveKeyW( HKEY hkey, LPCWSTR file, LPSECURITY_ATTRIBUTES sa )
2289 {
2290 static const WCHAR format[] =
2291 {'r','e','g','%','0','4','x','.','t','m','p',0};
2292 WCHAR buffer[MAX_PATH];
2293 int count = 0;
2294 LPWSTR nameW;
2295 DWORD ret, err;
2296 HANDLE handle;
2297
2298 TRACE( "(%p,%s,%p)\n", hkey, debugstr_w(file), sa );
2299
2300 if (!file || !*file) return ERROR_INVALID_PARAMETER;
2301 if (!(hkey = get_special_root_hkey( hkey, 0 ))) return ERROR_INVALID_HANDLE;
2302
2303 err = GetLastError();
2304 GetFullPathNameW( file, sizeof(buffer)/sizeof(WCHAR), buffer, &nameW );
2305
2306 for (;;)
2307 {
2308 snprintfW( nameW, 16, format, count++ );
2309 handle = CreateFileW( buffer, GENERIC_WRITE, 0, NULL,
2310 CREATE_NEW, FILE_ATTRIBUTE_NORMAL, 0 );
2311 if (handle != INVALID_HANDLE_VALUE) break;
2312 if ((ret = GetLastError()) != ERROR_FILE_EXISTS) goto done;
2313
2314 /* Something gone haywire ? Please report if this happens abnormally */
2315 if (count >= 100)
2316 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);
2317 }
2318
2319 ret = RtlNtStatusToDosError(NtSaveKey(hkey, handle));
2320
2321 CloseHandle( handle );
2322 if (!ret)
2323 {
2324 if (!MoveFileExW( buffer, file, MOVEFILE_REPLACE_EXISTING ))
2325 {
2326 ERR( "Failed to move %s to %s\n", debugstr_w(buffer),
2327 debugstr_w(file) );
2328 ret = GetLastError();
2329 }
2330 }
2331 if (ret) DeleteFileW( buffer );
2332
2333 done:
2334 SetLastError( err ); /* restore last error code */
2335 return ret;
2336 }
2337
2338
2339 /******************************************************************************
2340 * RegSaveKeyA [ADVAPI32.@]
2341 *
2342 * See RegSaveKeyW.
2343 */
2344 LSTATUS WINAPI RegSaveKeyA( HKEY hkey, LPCSTR file, LPSECURITY_ATTRIBUTES sa )
2345 {
2346 UNICODE_STRING *fileW = &NtCurrentTeb()->StaticUnicodeString;
2347 NTSTATUS status;
2348 STRING fileA;
2349
2350 RtlInitAnsiString(&fileA, file);
2351 if ((status = RtlAnsiStringToUnicodeString(fileW, &fileA, FALSE)))
2352 return RtlNtStatusToDosError( status );
2353 return RegSaveKeyW(hkey, fileW->Buffer, sa);
2354 }
2355
2356
2357 /******************************************************************************
2358 * RegRestoreKeyW [ADVAPI32.@]
2359 *
2360 * Read the registry information from a file and copy it over a key.
2361 *
2362 * PARAMS
2363 * hkey [I] Handle of key where restore begins
2364 * lpFile [I] Address of filename containing saved tree
2365 * dwFlags [I] Optional flags
2366 *
2367 * RETURNS
2368 * Success: ERROR_SUCCESS
2369 * Failure: nonzero error code from Winerror.h
2370 */
2371 LSTATUS WINAPI RegRestoreKeyW( HKEY hkey, LPCWSTR lpFile, DWORD dwFlags )
2372 {
2373 TRACE("(%p,%s,%d)\n",hkey,debugstr_w(lpFile),dwFlags);
2374
2375 /* It seems to do this check before the hkey check */
2376 if (!lpFile || !*lpFile)
2377 return ERROR_INVALID_PARAMETER;
2378
2379 FIXME("(%p,%s,%d): stub\n",hkey,debugstr_w(lpFile),dwFlags);
2380
2381 /* Check for file existence */
2382
2383 return ERROR_SUCCESS;
2384 }
2385
2386
2387 /******************************************************************************
2388 * RegRestoreKeyA [ADVAPI32.@]
2389 *
2390 * See RegRestoreKeyW.
2391 */
2392 LSTATUS WINAPI RegRestoreKeyA( HKEY hkey, LPCSTR lpFile, DWORD dwFlags )
2393 {
2394 UNICODE_STRING lpFileW;
2395 LONG ret;
2396
2397 RtlCreateUnicodeStringFromAsciiz( &lpFileW, lpFile );
2398 ret = RegRestoreKeyW( hkey, lpFileW.Buffer, dwFlags );
2399 RtlFreeUnicodeString( &lpFileW );
2400 return ret;
2401 }
2402
2403
2404 /******************************************************************************
2405 * RegUnLoadKeyW [ADVAPI32.@]
2406 *
2407 * Unload a registry key and its subkeys from the registry.
2408 *
2409 * PARAMS
2410 * hkey [I] Handle of open key
2411 * lpSubKey [I] Address of name of subkey to unload
2412 *
2413 * RETURNS
2414 * Success: ERROR_SUCCESS
2415 * Failure: nonzero error code from Winerror.h
2416 */
2417 LSTATUS WINAPI RegUnLoadKeyW( HKEY hkey, LPCWSTR lpSubKey )
2418 {
2419 DWORD ret;
2420 HKEY shkey;
2421 OBJECT_ATTRIBUTES attr;
2422 UNICODE_STRING subkey;
2423
2424 TRACE("(%p,%s)\n",hkey, debugstr_w(lpSubKey));
2425
2426 ret = RegOpenKeyW(hkey,lpSubKey,&shkey);
2427 if( ret )
2428 return ERROR_INVALID_PARAMETER;
2429
2430 RtlInitUnicodeString(&subkey, lpSubKey);
2431 InitializeObjectAttributes(&attr, &subkey, OBJ_CASE_INSENSITIVE, shkey, NULL);
2432 ret = RtlNtStatusToDosError(NtUnloadKey(&attr));
2433
2434 RegCloseKey(shkey);
2435
2436 return ret;
2437 }
2438
2439
2440 /******************************************************************************
2441 * RegUnLoadKeyA [ADVAPI32.@]
2442 *
2443 * See RegUnLoadKeyW.
2444 */
2445 LSTATUS WINAPI RegUnLoadKeyA( HKEY hkey, LPCSTR lpSubKey )
2446 {
2447 UNICODE_STRING lpSubKeyW;
2448 LONG ret;
2449
2450 RtlCreateUnicodeStringFromAsciiz( &lpSubKeyW, lpSubKey );
2451 ret = RegUnLoadKeyW( hkey, lpSubKeyW.Buffer );
2452 RtlFreeUnicodeString( &lpSubKeyW );
2453 return ret;
2454 }
2455
2456
2457 /******************************************************************************
2458 * RegReplaceKeyW [ADVAPI32.@]
2459 *
2460 * Replace the file backing a registry key and all its subkeys with another file.
2461 *
2462 * PARAMS
2463 * hkey [I] Handle of open key
2464 * lpSubKey [I] Address of name of subkey
2465 * lpNewFile [I] Address of filename for file with new data
2466 * lpOldFile [I] Address of filename for backup file
2467 *
2468 * RETURNS
2469 * Success: ERROR_SUCCESS
2470 * Failure: nonzero error code from Winerror.h
2471 */
2472 LSTATUS WINAPI RegReplaceKeyW( HKEY hkey, LPCWSTR lpSubKey, LPCWSTR lpNewFile,
2473 LPCWSTR lpOldFile )
2474 {
2475 FIXME("(%p,%s,%s,%s): stub\n", hkey, debugstr_w(lpSubKey),
2476 debugstr_w(lpNewFile),debugstr_w(lpOldFile));
2477 return ERROR_SUCCESS;
2478 }
2479
2480
2481 /******************************************************************************
2482 * RegReplaceKeyA [ADVAPI32.@]
2483 *
2484 * See RegReplaceKeyW.
2485 */
2486 LSTATUS WINAPI RegReplaceKeyA( HKEY hkey, LPCSTR lpSubKey, LPCSTR lpNewFile,
2487 LPCSTR lpOldFile )
2488 {
2489 UNICODE_STRING lpSubKeyW;
2490 UNICODE_STRING lpNewFileW;
2491 UNICODE_STRING lpOldFileW;
2492 LONG ret;
2493
2494 RtlCreateUnicodeStringFromAsciiz( &lpSubKeyW, lpSubKey );
2495 RtlCreateUnicodeStringFromAsciiz( &lpOldFileW, lpOldFile );
2496 RtlCreateUnicodeStringFromAsciiz( &lpNewFileW, lpNewFile );
2497 ret = RegReplaceKeyW( hkey, lpSubKeyW.Buffer, lpNewFileW.Buffer, lpOldFileW.Buffer );
2498 RtlFreeUnicodeString( &lpOldFileW );
2499 RtlFreeUnicodeString( &lpNewFileW );
2500 RtlFreeUnicodeString( &lpSubKeyW );
2501 return ret;
2502 }
2503
2504
2505 /******************************************************************************
2506 * RegSetKeySecurity [ADVAPI32.@]
2507 *
2508 * Set the security of an open registry key.
2509 *
2510 * PARAMS
2511 * hkey [I] Open handle of key to set
2512 * SecurityInfo [I] Descriptor contents
2513 * pSecurityDesc [I] Address of descriptor for key
2514 *
2515 * RETURNS
2516 * Success: ERROR_SUCCESS
2517 * Failure: nonzero error code from Winerror.h
2518 */
2519 LSTATUS WINAPI RegSetKeySecurity( HKEY hkey, SECURITY_INFORMATION SecurityInfo,
2520 PSECURITY_DESCRIPTOR pSecurityDesc )
2521 {
2522 TRACE("(%p,%d,%p)\n",hkey,SecurityInfo,pSecurityDesc);
2523
2524 /* It seems to perform this check before the hkey check */
2525 if ((SecurityInfo & OWNER_SECURITY_INFORMATION) ||
2526 (SecurityInfo & GROUP_SECURITY_INFORMATION) ||
2527 (SecurityInfo & DACL_SECURITY_INFORMATION) ||
2528 (SecurityInfo & SACL_SECURITY_INFORMATION)) {
2529 /* Param OK */
2530 } else
2531 return ERROR_INVALID_PARAMETER;
2532
2533 if (!pSecurityDesc)
2534 return ERROR_INVALID_PARAMETER;
2535
2536 if (!(hkey = get_special_root_hkey( hkey, 0 ))) return ERROR_INVALID_HANDLE;
2537
2538 return RtlNtStatusToDosError( NtSetSecurityObject( hkey, SecurityInfo, pSecurityDesc ) );
2539 }
2540
2541
2542 /******************************************************************************
2543 * RegGetKeySecurity [ADVAPI32.@]
2544 *
2545 * Get a copy of the security descriptor for a given registry key.
2546 *
2547 * PARAMS
2548 * hkey [I] Open handle of key to set
2549 * SecurityInformation [I] Descriptor contents
2550 * pSecurityDescriptor [O] Address of descriptor for key
2551 * lpcbSecurityDescriptor [I/O] Address of size of buffer and description
2552 *
2553 * RETURNS
2554 * Success: ERROR_SUCCESS
2555 * Failure: Error code
2556 */
2557 LSTATUS WINAPI RegGetKeySecurity( HKEY hkey, SECURITY_INFORMATION SecurityInformation,
2558 PSECURITY_DESCRIPTOR pSecurityDescriptor,
2559 LPDWORD lpcbSecurityDescriptor )
2560 {
2561 TRACE("(%p,%d,%p,%d)\n",hkey,SecurityInformation,pSecurityDescriptor,
2562 *lpcbSecurityDescriptor);
2563
2564 if (!(hkey = get_special_root_hkey( hkey, 0 ))) return ERROR_INVALID_HANDLE;
2565
2566 return RtlNtStatusToDosError( NtQuerySecurityObject( hkey,
2567 SecurityInformation, pSecurityDescriptor,
2568 *lpcbSecurityDescriptor, lpcbSecurityDescriptor ) );
2569 }
2570
2571
2572 /******************************************************************************
2573 * RegFlushKey [ADVAPI32.@]
2574 *
2575 * Immediately write a registry key to registry.
2576 *
2577 * PARAMS
2578 * hkey [I] Handle of key to write
2579 *
2580 * RETURNS
2581 * Success: ERROR_SUCCESS
2582 * Failure: Error code
2583 */
2584 LSTATUS WINAPI RegFlushKey( HKEY hkey )
2585 {
2586 hkey = get_special_root_hkey( hkey, 0 );
2587 if (!hkey) return ERROR_INVALID_HANDLE;
2588
2589 return RtlNtStatusToDosError( NtFlushKey( hkey ) );
2590 }
2591
2592
2593 /******************************************************************************
2594 * RegConnectRegistryW [ADVAPI32.@]
2595 *
2596 * Establish a connection to a predefined registry key on another computer.
2597 *
2598 * PARAMS
2599 * lpMachineName [I] Address of name of remote computer
2600 * hHey [I] Predefined registry handle
2601 * phkResult [I] Address of buffer for remote registry handle
2602 *
2603 * RETURNS
2604 * Success: ERROR_SUCCESS
2605 * Failure: nonzero error code from Winerror.h
2606 */
2607 LSTATUS WINAPI RegConnectRegistryW( LPCWSTR lpMachineName, HKEY hKey,
2608 PHKEY phkResult )
2609 {
2610 LONG ret;
2611
2612 TRACE("(%s,%p,%p)\n",debugstr_w(lpMachineName), hKey, phkResult);
2613
2614 if (!lpMachineName || !*lpMachineName) {
2615 /* Use the local machine name */
2616 ret = RegOpenKeyW( hKey, NULL, phkResult );
2617 }
2618 else {
2619 WCHAR compName[MAX_COMPUTERNAME_LENGTH + 1];
2620 DWORD len = sizeof(compName) / sizeof(WCHAR);
2621
2622 /* MSDN says lpMachineName must start with \\ : not so */
2623 if( lpMachineName[0] == '\\' && lpMachineName[1] == '\\')
2624 lpMachineName += 2;
2625 if (GetComputerNameW(compName, &len))
2626 {
2627 if (!strcmpiW(lpMachineName, compName))
2628 ret = RegOpenKeyW(hKey, NULL, phkResult);
2629 else
2630 {
2631 FIXME("Connect to %s is not supported.\n",debugstr_w(lpMachineName));
2632 ret = ERROR_BAD_NETPATH;
2633 }
2634 }
2635 else
2636 ret = GetLastError();
2637 }
2638 return ret;
2639 }
2640
2641
2642 /******************************************************************************
2643 * RegConnectRegistryA [ADVAPI32.@]
2644 *
2645 * See RegConnectRegistryW.
2646 */
2647 LSTATUS WINAPI RegConnectRegistryA( LPCSTR machine, HKEY hkey, PHKEY reskey )
2648 {
2649 UNICODE_STRING machineW;
2650 LONG ret;
2651
2652 RtlCreateUnicodeStringFromAsciiz( &machineW, machine );
2653 ret = RegConnectRegistryW( machineW.Buffer, hkey, reskey );
2654 RtlFreeUnicodeString( &machineW );
2655 return ret;
2656 }
2657
2658
2659 /******************************************************************************
2660 * RegNotifyChangeKeyValue [ADVAPI32.@]
2661 *
2662 * Notify the caller about changes to the attributes or contents of a registry key.
2663 *
2664 * PARAMS
2665 * hkey [I] Handle of key to watch
2666 * fWatchSubTree [I] Flag for subkey notification
2667 * fdwNotifyFilter [I] Changes to be reported
2668 * hEvent [I] Handle of signaled event
2669 * fAsync [I] Flag for asynchronous reporting
2670 *
2671 * RETURNS
2672 * Success: ERROR_SUCCESS
2673 * Failure: nonzero error code from Winerror.h
2674 */
2675 LSTATUS WINAPI RegNotifyChangeKeyValue( HKEY hkey, BOOL fWatchSubTree,
2676 DWORD fdwNotifyFilter, HANDLE hEvent,
2677 BOOL fAsync )
2678 {
2679 NTSTATUS status;
2680 IO_STATUS_BLOCK iosb;
2681
2682 hkey = get_special_root_hkey( hkey, 0 );
2683 if (!hkey) return ERROR_INVALID_HANDLE;
2684
2685 TRACE("(%p,%i,%d,%p,%i)\n", hkey, fWatchSubTree, fdwNotifyFilter,
2686 hEvent, fAsync);
2687
2688 status = NtNotifyChangeKey( hkey, hEvent, NULL, NULL, &iosb,
2689 fdwNotifyFilter, fWatchSubTree, NULL, 0,
2690 fAsync);
2691
2692 if (status && status != STATUS_TIMEOUT)
2693 return RtlNtStatusToDosError( status );
2694
2695 return ERROR_SUCCESS;
2696 }
2697
2698 /******************************************************************************
2699 * RegOpenUserClassesRoot [ADVAPI32.@]
2700 *
2701 * Open the HKEY_CLASSES_ROOT key for a user.
2702 *
2703 * PARAMS
2704 * hToken [I] Handle of token representing the user
2705 * dwOptions [I] Reserved, must be 0
2706 * samDesired [I] Desired access rights
2707 * phkResult [O] Destination for the resulting key handle
2708 *
2709 * RETURNS
2710 * Success: ERROR_SUCCESS
2711 * Failure: nonzero error code from Winerror.h
2712 *
2713 * NOTES
2714 * On Windows 2000 and upwards the HKEY_CLASSES_ROOT key is a view of the
2715 * "HKEY_LOCAL_MACHINE\Software\Classes" and the
2716 * "HKEY_CURRENT_USER\Software\Classes" keys merged together.
2717 */
2718 LSTATUS WINAPI RegOpenUserClassesRoot(
2719 HANDLE hToken,
2720 DWORD dwOptions,
2721 REGSAM samDesired,
2722 PHKEY phkResult
2723 )
2724 {
2725 FIXME("(%p, 0x%x, 0x%x, %p) semi-stub\n", hToken, dwOptions, samDesired, phkResult);
2726
2727 *phkResult = HKEY_CLASSES_ROOT;
2728 return ERROR_SUCCESS;
2729 }
2730
2731 /******************************************************************************
2732 * load_string [Internal]
2733 *
2734 * This is basically a copy of user32/resource.c's LoadStringW. Necessary to
2735 * avoid importing user32, which is higher level than advapi32. Helper for
2736 * RegLoadMUIString.
2737 */
2738 static int load_string(HINSTANCE hModule, UINT resId, LPWSTR pwszBuffer, INT cMaxChars)
2739 {
2740 HGLOBAL hMemory;
2741 HRSRC hResource;
2742 WCHAR *pString;
2743 int idxString;
2744
2745 /* Negative values have to be inverted. */
2746 if (HIWORD(resId) == 0xffff)
2747 resId = (UINT)(-((INT)resId));
2748
2749 /* Load the resource into memory and get a pointer to it. */
2750 hResource = FindResourceW(hModule, MAKEINTRESOURCEW(LOWORD(resId >> 4) + 1), (LPWSTR)RT_STRING);
2751 if (!hResource) return 0;
2752 hMemory = LoadResource(hModule, hResource);
2753 if (!hMemory) return 0;
2754 pString = LockResource(hMemory);
2755
2756 /* Strings are length-prefixed. Lowest nibble of resId is an index. */
2757 idxString = resId & 0xf;
2758 while (idxString--) pString += *pString + 1;
2759
2760 /* If no buffer is given, return length of the string. */
2761 if (!pwszBuffer) return *pString;
2762
2763 /* Else copy over the string, respecting the buffer size. */
2764 cMaxChars = (*pString < cMaxChars) ? *pString : (cMaxChars - 1);
2765 if (cMaxChars >= 0) {
2766 memcpy(pwszBuffer, pString+1, cMaxChars * sizeof(WCHAR));
2767 pwszBuffer[cMaxChars] = '\0';
2768 }
2769
2770 return cMaxChars;
2771 }
2772
2773 /******************************************************************************
2774 * RegLoadMUIStringW [ADVAPI32.@]
2775 *
2776 * Load the localized version of a string resource from some PE, respective
2777 * id and path of which are given in the registry value in the format
2778 * @[path]\dllname,-resourceId
2779 *
2780 * PARAMS
2781 * hKey [I] Key, of which to load the string value from.
2782 * pszValue [I] The value to be loaded (Has to be of REG_EXPAND_SZ or REG_SZ type).
2783 * pszBuffer [O] Buffer to store the localized string in.
2784 * cbBuffer [I] Size of the destination buffer in bytes.
2785 * pcbData [O] Number of bytes written to pszBuffer (optional, may be NULL).
2786 * dwFlags [I] None supported yet.
2787 * pszBaseDir [I] Not supported yet.
2788 *
2789 * RETURNS
2790 * Success: ERROR_SUCCESS,
2791 * Failure: nonzero error code from winerror.h
2792 *
2793 * NOTES
2794 * This is an API of Windows Vista, which wasn't available at the time this code
2795 * was written. We have to check for the correct behaviour once it's available.
2796 */
2797 LSTATUS WINAPI RegLoadMUIStringW(HKEY hKey, LPCWSTR pwszValue, LPWSTR pwszBuffer, DWORD cbBuffer,
2798 LPDWORD pcbData, DWORD dwFlags, LPCWSTR pwszBaseDir)
2799 {
2800 DWORD dwValueType, cbData;
2801 LPWSTR pwszTempBuffer = NULL, pwszExpandedBuffer = NULL;
2802 LONG result;
2803
2804 TRACE("(hKey = %p, pwszValue = %s, pwszBuffer = %p, cbBuffer = %d, pcbData = %p, "
2805 "dwFlags = %d, pwszBaseDir = %s)\n", hKey, debugstr_w(pwszValue), pwszBuffer,
2806 cbBuffer, pcbData, dwFlags, debugstr_w(pwszBaseDir));
2807
2808 /* Parameter sanity checks. */
2809 if (!hKey || !pwszBuffer)
2810 return ERROR_INVALID_PARAMETER;
2811
2812 if (pwszBaseDir && *pwszBaseDir) {
2813 FIXME("BaseDir parameter not yet supported!\n");
2814 return ERROR_INVALID_PARAMETER;
2815 }
2816
2817 /* Check for value existence and correctness of its type, allocate a buffer and load it. */
2818 result = RegQueryValueExW(hKey, pwszValue, NULL, &dwValueType, NULL, &cbData);
2819 if (result != ERROR_SUCCESS) goto cleanup;
2820 if (!(dwValueType == REG_SZ || dwValueType == REG_EXPAND_SZ) || !cbData) {
2821 result = ERROR_FILE_NOT_FOUND;
2822 goto cleanup;
2823 }
2824 pwszTempBuffer = heap_alloc(cbData);
2825 if (!pwszTempBuffer) {
2826 result = ERROR_NOT_ENOUGH_MEMORY;
2827 goto cleanup;
2828 }
2829 result = RegQueryValueExW(hKey, pwszValue, NULL, &dwValueType, (LPBYTE)pwszTempBuffer, &cbData);
2830 if (result != ERROR_SUCCESS) goto cleanup;
2831
2832 /* Expand environment variables, if appropriate, or copy the original string over. */
2833 if (dwValueType == REG_EXPAND_SZ) {
2834 cbData = ExpandEnvironmentStringsW(pwszTempBuffer, NULL, 0) * sizeof(WCHAR);
2835 if (!cbData) goto cleanup;
2836 pwszExpandedBuffer = heap_alloc(cbData);
2837 if (!pwszExpandedBuffer) {
2838 result = ERROR_NOT_ENOUGH_MEMORY;
2839 goto cleanup;
2840 }
2841 ExpandEnvironmentStringsW(pwszTempBuffer, pwszExpandedBuffer, cbData);
2842 } else {
2843 pwszExpandedBuffer = heap_alloc(cbData);
2844 memcpy(pwszExpandedBuffer, pwszTempBuffer, cbData);
2845 }
2846
2847 /* If the value references a resource based string, parse the value and load the string.
2848 * Else just copy over the original value. */
2849 result = ERROR_SUCCESS;
2850 if (*pwszExpandedBuffer != '@') { /* '@' is the prefix for resource based string entries. */
2851 lstrcpynW(pwszBuffer, pwszExpandedBuffer, cbBuffer / sizeof(WCHAR));
2852 } else {
2853 WCHAR *pComma = strrchrW(pwszExpandedBuffer, ',');
2854 UINT uiStringId;
2855 HMODULE hModule;
2856
2857 /* Format of the expanded value is 'path_to_dll,-resId' */
2858 if (!pComma || pComma[1] != '-') {
2859 result = ERROR_BADKEY;
2860 goto cleanup;
2861 }
2862
2863 uiStringId = atoiW(pComma+2);
2864 *pComma = '\0';
2865
2866 hModule = LoadLibraryW(pwszExpandedBuffer + 1);
2867 if (!hModule || !load_string(hModule, uiStringId, pwszBuffer, cbBuffer/sizeof(WCHAR)))
2868 result = ERROR_BADKEY;
2869 FreeLibrary(hModule);
2870 }
2871
2872 cleanup:
2873 heap_free(pwszTempBuffer);
2874 heap_free(pwszExpandedBuffer);
2875 return result;
2876 }
2877
2878 /******************************************************************************
2879 * RegLoadMUIStringA [ADVAPI32.@]
2880 *
2881 * See RegLoadMUIStringW
2882 */
2883 LSTATUS WINAPI RegLoadMUIStringA(HKEY hKey, LPCSTR pszValue, LPSTR pszBuffer, DWORD cbBuffer,
2884 LPDWORD pcbData, DWORD dwFlags, LPCSTR pszBaseDir)
2885 {
2886 UNICODE_STRING valueW, baseDirW;
2887 WCHAR *pwszBuffer;
2888 DWORD cbData = cbBuffer * sizeof(WCHAR);
2889 LONG result;
2890
2891 valueW.Buffer = baseDirW.Buffer = pwszBuffer = NULL;
2892 if (!RtlCreateUnicodeStringFromAsciiz(&valueW, pszValue) ||
2893 !RtlCreateUnicodeStringFromAsciiz(&baseDirW, pszBaseDir) ||
2894 !(pwszBuffer = heap_alloc(cbData)))
2895 {
2896 result = ERROR_NOT_ENOUGH_MEMORY;
2897 goto cleanup;
2898 }
2899
2900 result = RegLoadMUIStringW(hKey, valueW.Buffer, pwszBuffer, cbData, NULL, dwFlags,
2901 baseDirW.Buffer);
2902
2903 if (result == ERROR_SUCCESS) {
2904 cbData = WideCharToMultiByte(CP_ACP, 0, pwszBuffer, -1, pszBuffer, cbBuffer, NULL, NULL);
2905 if (pcbData)
2906 *pcbData = cbData;
2907 }
2908
2909 cleanup:
2910 heap_free(pwszBuffer);
2911 RtlFreeUnicodeString(&baseDirW);
2912 RtlFreeUnicodeString(&valueW);
2913
2914 return result;
2915 }
2916
2917 /******************************************************************************
2918 * RegDisablePredefinedCache [ADVAPI32.@]
2919 *
2920 * Disables the caching of the HKEY_CLASSES_ROOT key for the process.
2921 *
2922 * PARAMS
2923 * None.
2924 *
2925 * RETURNS
2926 * Success: ERROR_SUCCESS
2927 * Failure: nonzero error code from Winerror.h
2928 *
2929 * NOTES
2930 * This is useful for services that use impersonation.
2931 */
2932 LSTATUS WINAPI RegDisablePredefinedCache(void)
2933 {
2934 HKEY hkey_current_user;
2935 int idx = HandleToUlong(HKEY_CURRENT_USER) - HandleToUlong(HKEY_SPECIAL_ROOT_FIRST);
2936
2937 /* prevent caching of future requests */
2938 hkcu_cache_disabled = TRUE;
2939
2940 hkey_current_user = InterlockedExchangePointer( (void **)&special_root_keys[idx], NULL );
2941
2942 if (hkey_current_user)
2943 NtClose( hkey_current_user );
2944
2945 return ERROR_SUCCESS;
2946 }
2947
2948 /******************************************************************************
2949 * RegDeleteTreeW [ADVAPI32.@]
2950 *
2951 */
2952 LSTATUS WINAPI RegDeleteTreeW(HKEY hKey, LPCWSTR lpszSubKey)
2953 {
2954 LONG ret;
2955 DWORD dwMaxSubkeyLen, dwMaxValueLen;
2956 DWORD dwMaxLen, dwSize;
2957 WCHAR szNameBuf[MAX_PATH], *lpszName = szNameBuf;
2958 HKEY hSubKey = hKey;
2959
2960 TRACE("(hkey=%p,%p %s)\n", hKey, lpszSubKey, debugstr_w(lpszSubKey));
2961
2962 if(lpszSubKey)
2963 {
2964 ret = RegOpenKeyExW(hKey, lpszSubKey, 0, KEY_READ, &hSubKey);
2965 if (ret) return ret;
2966 }
2967
2968 /* Get highest length for keys, values */
2969 ret = RegQueryInfoKeyW(hSubKey, NULL, NULL, NULL, NULL,
2970 &dwMaxSubkeyLen, NULL, NULL, &dwMaxValueLen, NULL, NULL, NULL);
2971 if (ret) goto cleanup;
2972
2973 dwMaxSubkeyLen++;
2974 dwMaxValueLen++;
2975 dwMaxLen = max(dwMaxSubkeyLen, dwMaxValueLen);
2976 if (dwMaxLen > sizeof(szNameBuf)/sizeof(WCHAR))
2977 {
2978 /* Name too big: alloc a buffer for it */
2979 if (!(lpszName = heap_alloc( dwMaxLen*sizeof(WCHAR))))
2980 {
2981 ret = ERROR_NOT_ENOUGH_MEMORY;
2982 goto cleanup;
2983 }
2984 }
2985
2986
2987 /* Recursively delete all the subkeys */
2988 while (TRUE)
2989 {
2990 dwSize = dwMaxLen;
2991 if (RegEnumKeyExW(hSubKey, 0, lpszName, &dwSize, NULL,
2992 NULL, NULL, NULL)) break;
2993
2994 ret = RegDeleteTreeW(hSubKey, lpszName);
2995 if (ret) goto cleanup;
2996 }
2997
2998 if (lpszSubKey)
2999 ret = RegDeleteKeyW(hKey, lpszSubKey);
3000 else
3001 while (TRUE)
3002 {
3003 dwSize = dwMaxLen;
3004 if (RegEnumValueW(hKey, 0, lpszName, &dwSize,
3005 NULL, NULL, NULL, NULL)) break;
3006
3007 ret = RegDeleteValueW(hKey, lpszName);
3008 if (ret) goto cleanup;
3009 }
3010
3011 cleanup:
3012 /* Free buffer if allocated */
3013 if (lpszName != szNameBuf)
3014 heap_free( lpszName);
3015 if(lpszSubKey)
3016 RegCloseKey(hSubKey);
3017 return ret;
3018 }
3019
3020 /******************************************************************************
3021 * RegDeleteTreeA [ADVAPI32.@]
3022 *
3023 */
3024 LSTATUS WINAPI RegDeleteTreeA(HKEY hKey, LPCSTR lpszSubKey)
3025 {
3026 LONG ret;
3027 UNICODE_STRING lpszSubKeyW;
3028
3029 if (lpszSubKey) RtlCreateUnicodeStringFromAsciiz( &lpszSubKeyW, lpszSubKey);
3030 else lpszSubKeyW.Buffer = NULL;
3031 ret = RegDeleteTreeW( hKey, lpszSubKeyW.Buffer);
3032 RtlFreeUnicodeString( &lpszSubKeyW );
3033 return ret;
3034 }
3035
3036 /******************************************************************************
3037 * RegDisableReflectionKey [ADVAPI32.@]
3038 *
3039 */
3040 LONG WINAPI RegDisableReflectionKey(HKEY base)
3041 {
3042 FIXME("%p: stub\n", base);
3043 return ERROR_SUCCESS;
3044 }
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