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advapi32: Implemented RegDeleteKeyExA/W.
[wine/multimedia.git] / dlls / advapi32 / registry.c
blobfaae2b14ba197245d6af724d3390863dd5d3ec61
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 <stdlib.h>
27 #include <stdarg.h>
28 #include <stdio.h>
29
30 #include "ntstatus.h"
31 #define WIN32_NO_STATUS
32 #include "windef.h"
33 #include "winbase.h"
34 #include "winreg.h"
35 #include "winerror.h"
36 #include "winternl.h"
37 #include "winuser.h"
38
39 #include "wine/unicode.h"
40 #include "wine/debug.h"
41
42 WINE_DEFAULT_DEBUG_CHANNEL(reg);
43
44 #define HKEY_SPECIAL_ROOT_FIRST HKEY_CLASSES_ROOT
45 #define HKEY_SPECIAL_ROOT_LAST HKEY_DYN_DATA
46 #define NB_SPECIAL_ROOT_KEYS ((UINT_PTR)HKEY_SPECIAL_ROOT_LAST - (UINT_PTR)HKEY_SPECIAL_ROOT_FIRST + 1)
47
48 static HKEY special_root_keys[NB_SPECIAL_ROOT_KEYS];
49 static BOOL hkcu_cache_disabled;
50
51 static const WCHAR name_CLASSES_ROOT[] =
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 {'M','a','c','h','i','n','e',0};
57 static const WCHAR name_USERS[] =
58 {'U','s','e','r',0};
59 static const WCHAR name_PERFORMANCE_DATA[] =
60 {'P','e','r','f','D','a','t','a',0};
61 static const WCHAR name_CURRENT_CONFIG[] =
62 {'M','a','c','h','i','n','e','\\',
63 'S','y','s','t','e','m','\\',
64 'C','u','r','r','e','n','t','C','o','n','t','r','o','l','S','e','t','\\',
65 'H','a','r','d','w','a','r','e',' ','P','r','o','f','i','l','e','s','\\',
66 'C','u','r','r','e','n','t',0};
67 static const WCHAR name_DYN_DATA[] =
68 {'D','y','n','D','a','t','a',0};
69
70 static const WCHAR * const root_key_names[NB_SPECIAL_ROOT_KEYS] =
71 {
72 name_CLASSES_ROOT,
73 NULL, /* HKEY_CURRENT_USER is determined dynamically */
74 name_LOCAL_MACHINE,
75 name_USERS,
76 name_PERFORMANCE_DATA,
77 name_CURRENT_CONFIG,
78 name_DYN_DATA
79 };
80
81
82 /* check if value type needs string conversion (Ansi<->Unicode) */
83 static inline int is_string( DWORD type )
84 {
85 return (type == REG_SZ) || (type == REG_EXPAND_SZ) || (type == REG_MULTI_SZ);
86 }
87
88 /* check if current version is NT or Win95 */
89 static inline int is_version_nt(void)
90 {
91 return !(GetVersion() & 0x80000000);
92 }
93
94 /* create one of the HKEY_* special root keys */
95 static HKEY create_special_root_hkey( HANDLE hkey, DWORD access )
96 {
97 HKEY ret = 0;
98 int idx = (UINT_PTR)hkey - (UINT_PTR)HKEY_SPECIAL_ROOT_FIRST;
99
100 if (hkey == HKEY_CURRENT_USER)
101 {
102 if (RtlOpenCurrentUser( access, &hkey )) return 0;
103 TRACE( "HKEY_CURRENT_USER -> %p\n", hkey );
104
105 /* don't cache the key in the table if caching is disabled */
106 if (hkcu_cache_disabled)
107 return hkey;
108 }
109 else
110 {
111 OBJECT_ATTRIBUTES attr;
112 UNICODE_STRING name;
113
114 attr.Length = sizeof(attr);
115 attr.RootDirectory = 0;
116 attr.ObjectName = &name;
117 attr.Attributes = 0;
118 attr.SecurityDescriptor = NULL;
119 attr.SecurityQualityOfService = NULL;
120 RtlInitUnicodeString( &name, root_key_names[idx] );
121 if (NtCreateKey( &hkey, access, &attr, 0, NULL, 0, NULL )) return 0;
122 TRACE( "%s -> %p\n", debugstr_w(attr.ObjectName->Buffer), hkey );
123 }
124
125 if (!(ret = InterlockedCompareExchangePointer( (void **)&special_root_keys[idx], hkey, 0 )))
126 ret = hkey;
127 else
128 NtClose( hkey ); /* somebody beat us to it */
129 return ret;
130 }
131
132 /* map the hkey from special root to normal key if necessary */
133 static inline HKEY get_special_root_hkey( HKEY hkey )
134 {
135 HKEY ret = hkey;
136
137 if ((hkey >= HKEY_SPECIAL_ROOT_FIRST) && (hkey <= HKEY_SPECIAL_ROOT_LAST))
138 {
139 if (!(ret = special_root_keys[(UINT_PTR)hkey - (UINT_PTR)HKEY_SPECIAL_ROOT_FIRST]))
140 ret = create_special_root_hkey( hkey, MAXIMUM_ALLOWED );
141 }
142 return ret;
143 }
144
145
146 /******************************************************************************
147 * RegOverridePredefKey [ADVAPI32.@]
148 */
149 LSTATUS WINAPI RegOverridePredefKey( HKEY hkey, HKEY override )
150 {
151 HKEY old_key;
152 int idx;
153
154 if ((hkey < HKEY_SPECIAL_ROOT_FIRST) || (hkey > HKEY_SPECIAL_ROOT_LAST))
155 return ERROR_INVALID_PARAMETER;
156 idx = (UINT_PTR)hkey - (UINT_PTR)HKEY_SPECIAL_ROOT_FIRST;
157
158 if (override)
159 {
160 NTSTATUS status = NtDuplicateObject( GetCurrentProcess(), override,
161 GetCurrentProcess(), (HANDLE *)&override,
162 0, 0, DUPLICATE_SAME_ACCESS );
163 if (status) return RtlNtStatusToDosError( status );
164 }
165
166 old_key = InterlockedExchangePointer( (void **)&special_root_keys[idx], override );
167 if (old_key) NtClose( old_key );
168 return ERROR_SUCCESS;
169 }
170
171
172 /******************************************************************************
173 * RegCreateKeyExW [ADVAPI32.@]
174 *
175 * See RegCreateKeyExA.
176 */
177 LSTATUS WINAPI RegCreateKeyExW( HKEY hkey, LPCWSTR name, DWORD reserved, LPWSTR class,
178 DWORD options, REGSAM access, SECURITY_ATTRIBUTES *sa,
179 PHKEY retkey, LPDWORD dispos )
180 {
181 OBJECT_ATTRIBUTES attr;
182 UNICODE_STRING nameW, classW;
183
184 if (reserved) return ERROR_INVALID_PARAMETER;
185 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
186
187 attr.Length = sizeof(attr);
188 attr.RootDirectory = hkey;
189 attr.ObjectName = &nameW;
190 attr.Attributes = 0;
191 attr.SecurityDescriptor = NULL;
192 attr.SecurityQualityOfService = NULL;
193 if (options & REG_OPTION_OPEN_LINK) attr.Attributes |= OBJ_OPENLINK;
194 RtlInitUnicodeString( &nameW, name );
195 RtlInitUnicodeString( &classW, class );
196
197 return RtlNtStatusToDosError( NtCreateKey( (PHANDLE)retkey, access, &attr, 0,
198 &classW, options, dispos ) );
199 }
200
201
202 /******************************************************************************
203 * RegCreateKeyExA [ADVAPI32.@]
204 *
205 * Open a registry key, creating it if it doesn't exist.
206 *
207 * PARAMS
208 * hkey [I] Handle of the parent registry key
209 * name [I] Name of the new key to open or create
210 * reserved [I] Reserved, pass 0
211 * class [I] The object type of the new key
212 * options [I] Flags controlling the key creation (REG_OPTION_* flags from "winnt.h")
213 * access [I] Access level desired
214 * sa [I] Security attributes for the key
215 * retkey [O] Destination for the resulting handle
216 * dispos [O] Receives REG_CREATED_NEW_KEY or REG_OPENED_EXISTING_KEY
217 *
218 * RETURNS
219 * Success: ERROR_SUCCESS.
220 * Failure: A standard Win32 error code. retkey remains untouched.
221 *
222 * FIXME
223 * MAXIMUM_ALLOWED in access mask not supported by server
224 */
225 LSTATUS WINAPI RegCreateKeyExA( HKEY hkey, LPCSTR name, DWORD reserved, LPSTR class,
226 DWORD options, REGSAM access, SECURITY_ATTRIBUTES *sa,
227 PHKEY retkey, LPDWORD dispos )
228 {
229 OBJECT_ATTRIBUTES attr;
230 UNICODE_STRING classW;
231 ANSI_STRING nameA, classA;
232 NTSTATUS status;
233
234 if (reserved) return ERROR_INVALID_PARAMETER;
235 if (!is_version_nt())
236 {
237 access = MAXIMUM_ALLOWED; /* Win95 ignores the access mask */
238 if (name && *name == '\\') name++; /* win9x,ME ignores one (and only one) beginning backslash */
239 }
240 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
241
242 attr.Length = sizeof(attr);
243 attr.RootDirectory = hkey;
244 attr.ObjectName = &NtCurrentTeb()->StaticUnicodeString;
245 attr.Attributes = 0;
246 attr.SecurityDescriptor = NULL;
247 attr.SecurityQualityOfService = NULL;
248 if (options & REG_OPTION_OPEN_LINK) attr.Attributes |= OBJ_OPENLINK;
249 RtlInitAnsiString( &nameA, name );
250 RtlInitAnsiString( &classA, class );
251
252 if (!(status = RtlAnsiStringToUnicodeString( &NtCurrentTeb()->StaticUnicodeString,
253 &nameA, FALSE )))
254 {
255 if (!(status = RtlAnsiStringToUnicodeString( &classW, &classA, TRUE )))
256 {
257 status = NtCreateKey( (PHANDLE)retkey, access, &attr, 0, &classW, options, dispos );
258 RtlFreeUnicodeString( &classW );
259 }
260 }
261 return RtlNtStatusToDosError( status );
262 }
263
264
265 /******************************************************************************
266 * RegCreateKeyW [ADVAPI32.@]
267 *
268 * Creates the specified reg key.
269 *
270 * PARAMS
271 * hKey [I] Handle to an open key.
272 * lpSubKey [I] Name of a key that will be opened or created.
273 * phkResult [O] Receives a handle to the opened or created key.
274 *
275 * RETURNS
276 * Success: ERROR_SUCCESS
277 * Failure: nonzero error code defined in Winerror.h
278 */
279 LSTATUS WINAPI RegCreateKeyW( HKEY hkey, LPCWSTR lpSubKey, PHKEY phkResult )
280 {
281 /* FIXME: previous implementation converted ERROR_INVALID_HANDLE to ERROR_BADKEY, */
282 /* but at least my version of NT (4.0 SP5) doesn't do this. -- AJ */
283 return RegCreateKeyExW( hkey, lpSubKey, 0, NULL, REG_OPTION_NON_VOLATILE,
284 MAXIMUM_ALLOWED, NULL, phkResult, NULL );
285 }
286
287
288 /******************************************************************************
289 * RegCreateKeyA [ADVAPI32.@]
290 *
291 * See RegCreateKeyW.
292 */
293 LSTATUS WINAPI RegCreateKeyA( HKEY hkey, LPCSTR lpSubKey, PHKEY phkResult )
294 {
295 return RegCreateKeyExA( hkey, lpSubKey, 0, NULL, REG_OPTION_NON_VOLATILE,
296 MAXIMUM_ALLOWED, NULL, phkResult, NULL );
297 }
298
299
300
301 /******************************************************************************
302 * RegOpenKeyExW [ADVAPI32.@]
303 *
304 * See RegOpenKeyExA.
305 */
306 LSTATUS WINAPI RegOpenKeyExW( HKEY hkey, LPCWSTR name, DWORD options, REGSAM access, PHKEY retkey )
307 {
308 OBJECT_ATTRIBUTES attr;
309 UNICODE_STRING nameW;
310
311 /* NT+ allows beginning backslash for HKEY_CLASSES_ROOT */
312 if (hkey == HKEY_CLASSES_ROOT && name && *name == '\\') name++;
313
314 if (!retkey) return ERROR_INVALID_PARAMETER;
315 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
316
317 attr.Length = sizeof(attr);
318 attr.RootDirectory = hkey;
319 attr.ObjectName = &nameW;
320 attr.Attributes = 0;
321 attr.SecurityDescriptor = NULL;
322 attr.SecurityQualityOfService = NULL;
323 if (options & REG_OPTION_OPEN_LINK) attr.Attributes |= OBJ_OPENLINK;
324 RtlInitUnicodeString( &nameW, name );
325 return RtlNtStatusToDosError( NtOpenKey( (PHANDLE)retkey, access, &attr ) );
326 }
327
328
329 /******************************************************************************
330 * RegOpenKeyExA [ADVAPI32.@]
331 *
332 * Open a registry key.
333 *
334 * PARAMS
335 * hkey [I] Handle of open key
336 * name [I] Name of subkey to open
337 * options [I] Open options (can be set to REG_OPTION_OPEN_LINK)
338 * access [I] Security access mask
339 * retkey [O] Handle to open key
340 *
341 * RETURNS
342 * Success: ERROR_SUCCESS
343 * Failure: A standard Win32 error code. retkey is set to 0.
344 *
345 * NOTES
346 * Unlike RegCreateKeyExA(), this function will not create the key if it
347 * does not exist.
348 */
349 LSTATUS WINAPI RegOpenKeyExA( HKEY hkey, LPCSTR name, DWORD options, REGSAM access, PHKEY retkey )
350 {
351 OBJECT_ATTRIBUTES attr;
352 STRING nameA;
353 NTSTATUS status;
354
355 if (!is_version_nt()) access = MAXIMUM_ALLOWED; /* Win95 ignores the access mask */
356 else
357 {
358 /* NT+ allows beginning backslash for HKEY_CLASSES_ROOT */
359 if (hkey == HKEY_CLASSES_ROOT && name && *name == '\\') name++;
360 }
361
362 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
363
364 attr.Length = sizeof(attr);
365 attr.RootDirectory = hkey;
366 attr.ObjectName = &NtCurrentTeb()->StaticUnicodeString;
367 attr.Attributes = 0;
368 attr.SecurityDescriptor = NULL;
369 attr.SecurityQualityOfService = NULL;
370 if (options & REG_OPTION_OPEN_LINK) attr.Attributes |= OBJ_OPENLINK;
371
372 RtlInitAnsiString( &nameA, name );
373 if (!(status = RtlAnsiStringToUnicodeString( &NtCurrentTeb()->StaticUnicodeString,
374 &nameA, FALSE )))
375 {
376 status = NtOpenKey( (PHANDLE)retkey, access, &attr );
377 }
378 return RtlNtStatusToDosError( status );
379 }
380
381
382 /******************************************************************************
383 * RegOpenKeyW [ADVAPI32.@]
384 *
385 * See RegOpenKeyA.
386 */
387 LSTATUS WINAPI RegOpenKeyW( HKEY hkey, LPCWSTR name, PHKEY retkey )
388 {
389 if (!retkey)
390 return ERROR_INVALID_PARAMETER;
391
392 if (!name || !*name)
393 {
394 *retkey = hkey;
395 return ERROR_SUCCESS;
396 }
397 return RegOpenKeyExW( hkey, name, 0, MAXIMUM_ALLOWED, retkey );
398 }
399
400
401 /******************************************************************************
402 * RegOpenKeyA [ADVAPI32.@]
403 *
404 * Open a registry key.
405 *
406 * PARAMS
407 * hkey [I] Handle of parent key to open the new key under
408 * name [I] Name of the key under hkey to open
409 * retkey [O] Destination for the resulting Handle
410 *
411 * RETURNS
412 * Success: ERROR_SUCCESS
413 * Failure: A standard Win32 error code. When retkey is valid, *retkey is set to 0.
414 */
415 LSTATUS WINAPI RegOpenKeyA( HKEY hkey, LPCSTR name, PHKEY retkey )
416 {
417 if (!retkey)
418 return ERROR_INVALID_PARAMETER;
419
420 if (!name || !*name)
421 {
422 *retkey = hkey;
423 return ERROR_SUCCESS;
424 }
425 return RegOpenKeyExA( hkey, name, 0, MAXIMUM_ALLOWED, retkey );
426 }
427
428
429 /******************************************************************************
430 * RegOpenCurrentUser [ADVAPI32.@]
431 *
432 * Get a handle to the HKEY_CURRENT_USER key for the user
433 * the current thread is impersonating.
434 *
435 * PARAMS
436 * access [I] Desired access rights to the key
437 * retkey [O] Handle to the opened key
438 *
439 * RETURNS
440 * Success: ERROR_SUCCESS
441 * Failure: nonzero error code from Winerror.h
442 *
443 * FIXME
444 * This function is supposed to retrieve a handle to the
445 * HKEY_CURRENT_USER for the user the current thread is impersonating.
446 * Since Wine does not currently allow threads to impersonate other users,
447 * this stub should work fine.
448 */
449 LSTATUS WINAPI RegOpenCurrentUser( REGSAM access, PHKEY retkey )
450 {
451 return RegOpenKeyExA( HKEY_CURRENT_USER, "", 0, access, retkey );
452 }
453
454
455
456 /******************************************************************************
457 * RegEnumKeyExW [ADVAPI32.@]
458 *
459 * Enumerate subkeys of the specified open registry key.
460 *
461 * PARAMS
462 * hkey [I] Handle to key to enumerate
463 * index [I] Index of subkey to enumerate
464 * name [O] Buffer for subkey name
465 * name_len [O] Size of subkey buffer
466 * reserved [I] Reserved
467 * class [O] Buffer for class string
468 * class_len [O] Size of class buffer
469 * ft [O] Time key last written to
470 *
471 * RETURNS
472 * Success: ERROR_SUCCESS
473 * Failure: System error code. If there are no more subkeys available, the
474 * function returns ERROR_NO_MORE_ITEMS.
475 */
476 LSTATUS WINAPI RegEnumKeyExW( HKEY hkey, DWORD index, LPWSTR name, LPDWORD name_len,
477 LPDWORD reserved, LPWSTR class, LPDWORD class_len, FILETIME *ft )
478 {
479 NTSTATUS status;
480 char buffer[256], *buf_ptr = buffer;
481 KEY_NODE_INFORMATION *info = (KEY_NODE_INFORMATION *)buffer;
482 DWORD total_size;
483
484 TRACE( "(%p,%d,%p,%p(%u),%p,%p,%p,%p)\n", hkey, index, name, name_len,
485 name_len ? *name_len : 0, reserved, class, class_len, ft );
486
487 if (reserved) return ERROR_INVALID_PARAMETER;
488 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
489
490 status = NtEnumerateKey( hkey, index, KeyNodeInformation,
491 buffer, sizeof(buffer), &total_size );
492
493 while (status == STATUS_BUFFER_OVERFLOW)
494 {
495 /* retry with a dynamically allocated buffer */
496 if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
497 if (!(buf_ptr = HeapAlloc( GetProcessHeap(), 0, total_size )))
498 return ERROR_NOT_ENOUGH_MEMORY;
499 info = (KEY_NODE_INFORMATION *)buf_ptr;
500 status = NtEnumerateKey( hkey, index, KeyNodeInformation,
501 buf_ptr, total_size, &total_size );
502 }
503
504 if (!status)
505 {
506 DWORD len = info->NameLength / sizeof(WCHAR);
507 DWORD cls_len = info->ClassLength / sizeof(WCHAR);
508
509 if (ft) *ft = *(FILETIME *)&info->LastWriteTime;
510
511 if (len >= *name_len || (class && class_len && (cls_len >= *class_len)))
512 status = STATUS_BUFFER_OVERFLOW;
513 else
514 {
515 *name_len = len;
516 memcpy( name, info->Name, info->NameLength );
517 name[len] = 0;
518 if (class_len)
519 {
520 *class_len = cls_len;
521 if (class)
522 {
523 memcpy( class, buf_ptr + info->ClassOffset, info->ClassLength );
524 class[cls_len] = 0;
525 }
526 }
527 }
528 }
529
530 if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
531 return RtlNtStatusToDosError( status );
532 }
533
534
535 /******************************************************************************
536 * RegEnumKeyExA [ADVAPI32.@]
537 *
538 * See RegEnumKeyExW.
539 */
540 LSTATUS WINAPI RegEnumKeyExA( HKEY hkey, DWORD index, LPSTR name, LPDWORD name_len,
541 LPDWORD reserved, LPSTR class, LPDWORD class_len, FILETIME *ft )
542 {
543 NTSTATUS status;
544 char buffer[256], *buf_ptr = buffer;
545 KEY_NODE_INFORMATION *info = (KEY_NODE_INFORMATION *)buffer;
546 DWORD total_size;
547
548 TRACE( "(%p,%d,%p,%p(%u),%p,%p,%p,%p)\n", hkey, index, name, name_len,
549 name_len ? *name_len : 0, reserved, class, class_len, ft );
550
551 if (reserved) return ERROR_INVALID_PARAMETER;
552 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
553
554 status = NtEnumerateKey( hkey, index, KeyNodeInformation,
555 buffer, sizeof(buffer), &total_size );
556
557 while (status == STATUS_BUFFER_OVERFLOW)
558 {
559 /* retry with a dynamically allocated buffer */
560 if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
561 if (!(buf_ptr = HeapAlloc( GetProcessHeap(), 0, total_size )))
562 return ERROR_NOT_ENOUGH_MEMORY;
563 info = (KEY_NODE_INFORMATION *)buf_ptr;
564 status = NtEnumerateKey( hkey, index, KeyNodeInformation,
565 buf_ptr, total_size, &total_size );
566 }
567
568 if (!status)
569 {
570 DWORD len, cls_len;
571
572 RtlUnicodeToMultiByteSize( &len, info->Name, info->NameLength );
573 RtlUnicodeToMultiByteSize( &cls_len, (WCHAR *)(buf_ptr + info->ClassOffset),
574 info->ClassLength );
575 if (ft) *ft = *(FILETIME *)&info->LastWriteTime;
576
577 if (len >= *name_len || (class && class_len && (cls_len >= *class_len)))
578 status = STATUS_BUFFER_OVERFLOW;
579 else
580 {
581 *name_len = len;
582 RtlUnicodeToMultiByteN( name, len, NULL, info->Name, info->NameLength );
583 name[len] = 0;
584 if (class_len)
585 {
586 *class_len = cls_len;
587 if (class)
588 {
589 RtlUnicodeToMultiByteN( class, cls_len, NULL,
590 (WCHAR *)(buf_ptr + info->ClassOffset),
591 info->ClassLength );
592 class[cls_len] = 0;
593 }
594 }
595 }
596 }
597
598 if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
599 return RtlNtStatusToDosError( status );
600 }
601
602
603 /******************************************************************************
604 * RegEnumKeyW [ADVAPI32.@]
605 *
606 * Enumerates subkeys of the specified open reg key.
607 *
608 * PARAMS
609 * hKey [I] Handle to an open key.
610 * dwIndex [I] Index of the subkey of hKey to retrieve.
611 * lpName [O] Name of the subkey.
612 * cchName [I] Size of lpName in TCHARS.
613 *
614 * RETURNS
615 * Success: ERROR_SUCCESS
616 * Failure: system error code. If there are no more subkeys available, the
617 * function returns ERROR_NO_MORE_ITEMS.
618 */
619 LSTATUS WINAPI RegEnumKeyW( HKEY hkey, DWORD index, LPWSTR name, DWORD name_len )
620 {
621 return RegEnumKeyExW( hkey, index, name, &name_len, NULL, NULL, NULL, NULL );
622 }
623
624
625 /******************************************************************************
626 * RegEnumKeyA [ADVAPI32.@]
627 *
628 * See RegEnumKeyW.
629 */
630 LSTATUS WINAPI RegEnumKeyA( HKEY hkey, DWORD index, LPSTR name, DWORD name_len )
631 {
632 return RegEnumKeyExA( hkey, index, name, &name_len, NULL, NULL, NULL, NULL );
633 }
634
635
636 /******************************************************************************
637 * RegQueryInfoKeyW [ADVAPI32.@]
638 *
639 * Retrieves information about the specified registry key.
640 *
641 * PARAMS
642 * hkey [I] Handle to key to query
643 * class [O] Buffer for class string
644 * class_len [O] Size of class string buffer
645 * reserved [I] Reserved
646 * subkeys [O] Buffer for number of subkeys
647 * max_subkey [O] Buffer for longest subkey name length
648 * max_class [O] Buffer for longest class string length
649 * values [O] Buffer for number of value entries
650 * max_value [O] Buffer for longest value name length
651 * max_data [O] Buffer for longest value data length
652 * security [O] Buffer for security descriptor length
653 * modif [O] Modification time
654 *
655 * RETURNS
656 * Success: ERROR_SUCCESS
657 * Failure: system error code.
658 *
659 * NOTES
660 * - win95 allows class to be valid and class_len to be NULL
661 * - winnt returns ERROR_INVALID_PARAMETER if class is valid and class_len is NULL
662 * - both allow class to be NULL and class_len to be NULL
663 * (it's hard to test validity, so test !NULL instead)
664 */
665 LSTATUS WINAPI RegQueryInfoKeyW( HKEY hkey, LPWSTR class, LPDWORD class_len, LPDWORD reserved,
666 LPDWORD subkeys, LPDWORD max_subkey, LPDWORD max_class,
667 LPDWORD values, LPDWORD max_value, LPDWORD max_data,
668 LPDWORD security, FILETIME *modif )
669 {
670 NTSTATUS status;
671 char buffer[256], *buf_ptr = buffer;
672 KEY_FULL_INFORMATION *info = (KEY_FULL_INFORMATION *)buffer;
673 DWORD total_size;
674
675 TRACE( "(%p,%p,%d,%p,%p,%p,%p,%p,%p,%p,%p)\n", hkey, class, class_len ? *class_len : 0,
676 reserved, subkeys, max_subkey, values, max_value, max_data, security, modif );
677
678 if (class && !class_len && is_version_nt()) return ERROR_INVALID_PARAMETER;
679 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
680
681 status = NtQueryKey( hkey, KeyFullInformation, buffer, sizeof(buffer), &total_size );
682 if (status && status != STATUS_BUFFER_OVERFLOW) goto done;
683
684 if (class)
685 {
686 /* retry with a dynamically allocated buffer */
687 while (status == STATUS_BUFFER_OVERFLOW)
688 {
689 if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
690 if (!(buf_ptr = HeapAlloc( GetProcessHeap(), 0, total_size )))
691 return ERROR_NOT_ENOUGH_MEMORY;
692 info = (KEY_FULL_INFORMATION *)buf_ptr;
693 status = NtQueryKey( hkey, KeyFullInformation, buf_ptr, total_size, &total_size );
694 }
695
696 if (status) goto done;
697
698 if (class_len && (info->ClassLength/sizeof(WCHAR) + 1 > *class_len))
699 {
700 status = STATUS_BUFFER_OVERFLOW;
701 }
702 else
703 {
704 memcpy( class, buf_ptr + info->ClassOffset, info->ClassLength );
705 class[info->ClassLength/sizeof(WCHAR)] = 0;
706 }
707 }
708 else status = STATUS_SUCCESS;
709
710 if (class_len) *class_len = info->ClassLength / sizeof(WCHAR);
711 if (subkeys) *subkeys = info->SubKeys;
712 if (max_subkey) *max_subkey = info->MaxNameLen;
713 if (max_class) *max_class = info->MaxClassLen;
714 if (values) *values = info->Values;
715 if (max_value) *max_value = info->MaxValueNameLen;
716 if (max_data) *max_data = info->MaxValueDataLen;
717 if (modif) *modif = *(FILETIME *)&info->LastWriteTime;
718
719 done:
720 if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
721 return RtlNtStatusToDosError( status );
722 }
723
724
725 /******************************************************************************
726 * RegQueryMultipleValuesA [ADVAPI32.@]
727 *
728 * Retrieves the type and data for a list of value names associated with a key.
729 *
730 * PARAMS
731 * hKey [I] Handle to an open key.
732 * val_list [O] Array of VALENT structures that describes the entries.
733 * num_vals [I] Number of elements in val_list.
734 * lpValueBuf [O] Pointer to a buffer that receives the data for each value.
735 * ldwTotsize [I/O] Size of lpValueBuf.
736 *
737 * RETURNS
738 * Success: ERROR_SUCCESS. ldwTotsize contains num bytes copied.
739 * Failure: nonzero error code from Winerror.h ldwTotsize contains num needed
740 * bytes.
741 */
742 LSTATUS WINAPI RegQueryMultipleValuesA( HKEY hkey, PVALENTA val_list, DWORD num_vals,
743 LPSTR lpValueBuf, LPDWORD ldwTotsize )
744 {
745 unsigned int i;
746 DWORD maxBytes = *ldwTotsize;
747 HRESULT status;
748 LPSTR bufptr = lpValueBuf;
749 *ldwTotsize = 0;
750
751 TRACE("(%p,%p,%d,%p,%p=%d)\n", hkey, val_list, num_vals, lpValueBuf, ldwTotsize, *ldwTotsize);
752
753 for(i=0; i < num_vals; ++i)
754 {
755
756 val_list[i].ve_valuelen=0;
757 status = RegQueryValueExA(hkey, val_list[i].ve_valuename, NULL, NULL, NULL, &val_list[i].ve_valuelen);
758 if(status != ERROR_SUCCESS)
759 {
760 return status;
761 }
762
763 if(lpValueBuf != NULL && *ldwTotsize + val_list[i].ve_valuelen <= maxBytes)
764 {
765 status = RegQueryValueExA(hkey, val_list[i].ve_valuename, NULL, &val_list[i].ve_type,
766 (LPBYTE)bufptr, &val_list[i].ve_valuelen);
767 if(status != ERROR_SUCCESS)
768 {
769 return status;
770 }
771
772 val_list[i].ve_valueptr = (DWORD_PTR)bufptr;
773
774 bufptr += val_list[i].ve_valuelen;
775 }
776
777 *ldwTotsize += val_list[i].ve_valuelen;
778 }
779 return lpValueBuf != NULL && *ldwTotsize <= maxBytes ? ERROR_SUCCESS : ERROR_MORE_DATA;
780 }
781
782
783 /******************************************************************************
784 * RegQueryMultipleValuesW [ADVAPI32.@]
785 *
786 * See RegQueryMultipleValuesA.
787 */
788 LSTATUS WINAPI RegQueryMultipleValuesW( HKEY hkey, PVALENTW val_list, DWORD num_vals,
789 LPWSTR lpValueBuf, LPDWORD ldwTotsize )
790 {
791 unsigned int i;
792 DWORD maxBytes = *ldwTotsize;
793 HRESULT status;
794 LPSTR bufptr = (LPSTR)lpValueBuf;
795 *ldwTotsize = 0;
796
797 TRACE("(%p,%p,%d,%p,%p=%d)\n", hkey, val_list, num_vals, lpValueBuf, ldwTotsize, *ldwTotsize);
798
799 for(i=0; i < num_vals; ++i)
800 {
801 val_list[i].ve_valuelen=0;
802 status = RegQueryValueExW(hkey, val_list[i].ve_valuename, NULL, NULL, NULL, &val_list[i].ve_valuelen);
803 if(status != ERROR_SUCCESS)
804 {
805 return status;
806 }
807
808 if(lpValueBuf != NULL && *ldwTotsize + val_list[i].ve_valuelen <= maxBytes)
809 {
810 status = RegQueryValueExW(hkey, val_list[i].ve_valuename, NULL, &val_list[i].ve_type,
811 (LPBYTE)bufptr, &val_list[i].ve_valuelen);
812 if(status != ERROR_SUCCESS)
813 {
814 return status;
815 }
816
817 val_list[i].ve_valueptr = (DWORD_PTR)bufptr;
818
819 bufptr += val_list[i].ve_valuelen;
820 }
821
822 *ldwTotsize += val_list[i].ve_valuelen;
823 }
824 return lpValueBuf != NULL && *ldwTotsize <= maxBytes ? ERROR_SUCCESS : ERROR_MORE_DATA;
825 }
826
827 /******************************************************************************
828 * RegQueryInfoKeyA [ADVAPI32.@]
829 *
830 * Retrieves information about a registry key.
831 *
832 * PARAMS
833 * hKey [I] Handle to an open key.
834 * lpClass [O] Class string of the key.
835 * lpcClass [I/O] size of lpClass.
836 * lpReserved [I] Reserved; must be NULL.
837 * lpcSubKeys [O] Number of subkeys contained by the key.
838 * lpcMaxSubKeyLen [O] Size of the key's subkey with the longest name.
839 * lpcMaxClassLen [O] Size of the longest string specifying a subkey
840 * class in TCHARS.
841 * lpcValues [O] Number of values associated with the key.
842 * lpcMaxValueNameLen [O] Size of the key's longest value name in TCHARS.
843 * lpcMaxValueLen [O] Longest data component among the key's values
844 * lpcbSecurityDescriptor [O] Size of the key's security descriptor.
845 * lpftLastWriteTime [O] FILETIME structure that is the last write time.
846 *
847 * RETURNS
848 * Success: ERROR_SUCCESS
849 * Failure: nonzero error code from Winerror.h
850 */
851 LSTATUS WINAPI RegQueryInfoKeyA( HKEY hkey, LPSTR class, LPDWORD class_len, LPDWORD reserved,
852 LPDWORD subkeys, LPDWORD max_subkey, LPDWORD max_class,
853 LPDWORD values, LPDWORD max_value, LPDWORD max_data,
854 LPDWORD security, FILETIME *modif )
855 {
856 NTSTATUS status;
857 char buffer[256], *buf_ptr = buffer;
858 KEY_FULL_INFORMATION *info = (KEY_FULL_INFORMATION *)buffer;
859 DWORD total_size, len;
860
861 TRACE( "(%p,%p,%d,%p,%p,%p,%p,%p,%p,%p,%p)\n", hkey, class, class_len ? *class_len : 0,
862 reserved, subkeys, max_subkey, values, max_value, max_data, security, modif );
863
864 if (class && !class_len && is_version_nt()) return ERROR_INVALID_PARAMETER;
865 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
866
867 status = NtQueryKey( hkey, KeyFullInformation, buffer, sizeof(buffer), &total_size );
868 if (status && status != STATUS_BUFFER_OVERFLOW) goto done;
869
870 if (class || class_len)
871 {
872 /* retry with a dynamically allocated buffer */
873 while (status == STATUS_BUFFER_OVERFLOW)
874 {
875 if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
876 if (!(buf_ptr = HeapAlloc( GetProcessHeap(), 0, total_size )))
877 return ERROR_NOT_ENOUGH_MEMORY;
878 info = (KEY_FULL_INFORMATION *)buf_ptr;
879 status = NtQueryKey( hkey, KeyFullInformation, buf_ptr, total_size, &total_size );
880 }
881
882 if (status) goto done;
883
884 RtlUnicodeToMultiByteSize( &len, (WCHAR *)(buf_ptr + info->ClassOffset), info->ClassLength);
885 if (class_len)
886 {
887 if (len + 1 > *class_len) status = STATUS_BUFFER_OVERFLOW;
888 *class_len = len;
889 }
890 if (class && !status)
891 {
892 RtlUnicodeToMultiByteN( class, len, NULL, (WCHAR *)(buf_ptr + info->ClassOffset),
893 info->ClassLength );
894 class[len] = 0;
895 }
896 }
897 else status = STATUS_SUCCESS;
898
899 if (subkeys) *subkeys = info->SubKeys;
900 if (max_subkey) *max_subkey = info->MaxNameLen;
901 if (max_class) *max_class = info->MaxClassLen;
902 if (values) *values = info->Values;
903 if (max_value) *max_value = info->MaxValueNameLen;
904 if (max_data) *max_data = info->MaxValueDataLen;
905 if (modif) *modif = *(FILETIME *)&info->LastWriteTime;
906
907 done:
908 if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
909 return RtlNtStatusToDosError( status );
910 }
911
912
913 /******************************************************************************
914 * RegCloseKey [ADVAPI32.@]
915 *
916 * Close an open registry key.
917 *
918 * PARAMS
919 * hkey [I] Handle of key to close
920 *
921 * RETURNS
922 * Success: ERROR_SUCCESS
923 * Failure: Error code
924 */
925 LSTATUS WINAPI RegCloseKey( HKEY hkey )
926 {
927 if (!hkey) return ERROR_INVALID_HANDLE;
928 if (hkey >= (HKEY)0x80000000) return ERROR_SUCCESS;
929 return RtlNtStatusToDosError( NtClose( hkey ) );
930 }
931
932
933 /******************************************************************************
934 * RegDeleteKeyExW [ADVAPI32.@]
935 */
936 LSTATUS WINAPI RegDeleteKeyExW( HKEY hkey, LPCWSTR name, REGSAM access, DWORD reserved )
937 {
938 DWORD ret;
939 HKEY tmp;
940
941 if (!name) return ERROR_INVALID_PARAMETER;
942
943 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
944
945 access &= KEY_WOW64_64KEY | KEY_WOW64_32KEY;
946 if (!(ret = RegOpenKeyExW( hkey, name, 0, access | DELETE, &tmp )))
947 {
948 ret = RtlNtStatusToDosError( NtDeleteKey( tmp ) );
949 RegCloseKey( tmp );
950 }
951 TRACE("%s ret=%08x\n", debugstr_w(name), ret);
952 return ret;
953 }
954
955
956 /******************************************************************************
957 * RegDeleteKeyW [ADVAPI32.@]
958 *
959 * See RegDeleteKeyA.
960 */
961 LSTATUS WINAPI RegDeleteKeyW( HKEY hkey, LPCWSTR name )
962 {
963 return RegDeleteKeyExW( hkey, name, 0, 0 );
964 }
965
966
967 /******************************************************************************
968 * RegDeleteKeyExA [ADVAPI32.@]
969 */
970 LSTATUS WINAPI RegDeleteKeyExA( HKEY hkey, LPCSTR name, REGSAM access, DWORD reserved )
971 {
972 DWORD ret;
973 HKEY tmp;
974
975 if (!name) return ERROR_INVALID_PARAMETER;
976
977 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
978
979 access &= KEY_WOW64_64KEY | KEY_WOW64_32KEY;
980 if (!(ret = RegOpenKeyExA( hkey, name, 0, access | DELETE, &tmp )))
981 {
982 if (!is_version_nt()) /* win95 does recursive key deletes */
983 {
984 CHAR name[MAX_PATH];
985
986 while(!RegEnumKeyA(tmp, 0, name, sizeof(name)))
987 {
988 if(RegDeleteKeyExA(tmp, name, access, reserved)) /* recurse */
989 break;
990 }
991 }
992 ret = RtlNtStatusToDosError( NtDeleteKey( tmp ) );
993 RegCloseKey( tmp );
994 }
995 TRACE("%s ret=%08x\n", debugstr_a(name), ret);
996 return ret;
997 }
998
999
1000 /******************************************************************************
1001 * RegDeleteKeyA [ADVAPI32.@]
1002 *
1003 * Delete a registry key.
1004 *
1005 * PARAMS
1006 * hkey [I] Handle to parent key containing the key to delete
1007 * name [I] Name of the key user hkey to delete
1008 *
1009 * NOTES
1010 *
1011 * MSDN is wrong when it says that hkey must be opened with the DELETE access
1012 * right. In reality, it opens a new handle with DELETE access.
1013 *
1014 * RETURNS
1015 * Success: ERROR_SUCCESS
1016 * Failure: Error code
1017 */
1018 LSTATUS WINAPI RegDeleteKeyA( HKEY hkey, LPCSTR name )
1019 {
1020 return RegDeleteKeyExA( hkey, name, 0, 0 );
1021 }
1022
1023
1024
1025 /******************************************************************************
1026 * RegSetValueExW [ADVAPI32.@]
1027 *
1028 * Set the data and contents of a registry value.
1029 *
1030 * PARAMS
1031 * hkey [I] Handle of key to set value for
1032 * name [I] Name of value to set
1033 * reserved [I] Reserved, must be zero
1034 * type [I] Type of the value being set
1035 * data [I] The new contents of the value to set
1036 * count [I] Size of data
1037 *
1038 * RETURNS
1039 * Success: ERROR_SUCCESS
1040 * Failure: Error code
1041 */
1042 LSTATUS WINAPI RegSetValueExW( HKEY hkey, LPCWSTR name, DWORD reserved,
1043 DWORD type, CONST BYTE *data, DWORD count )
1044 {
1045 UNICODE_STRING nameW;
1046
1047 /* no need for version check, not implemented on win9x anyway */
1048 if (count && is_string(type))
1049 {
1050 LPCWSTR str = (LPCWSTR)data;
1051 /* if user forgot to count terminating null, add it (yes NT does this) */
1052 if (str[count / sizeof(WCHAR) - 1] && !str[count / sizeof(WCHAR)])
1053 count += sizeof(WCHAR);
1054 }
1055 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
1056
1057 RtlInitUnicodeString( &nameW, name );
1058 return RtlNtStatusToDosError( NtSetValueKey( hkey, &nameW, 0, type, data, count ) );
1059 }
1060
1061
1062 /******************************************************************************
1063 * RegSetValueExA [ADVAPI32.@]
1064 *
1065 * See RegSetValueExW.
1066 *
1067 * NOTES
1068 * win95 does not care about count for REG_SZ and finds out the len by itself (js)
1069 * NT does definitely care (aj)
1070 */
1071 LSTATUS WINAPI RegSetValueExA( HKEY hkey, LPCSTR name, DWORD reserved, DWORD type,
1072 CONST BYTE *data, DWORD count )
1073 {
1074 ANSI_STRING nameA;
1075 WCHAR *dataW = NULL;
1076 NTSTATUS status;
1077
1078 if (!is_version_nt()) /* win95 */
1079 {
1080 if (type == REG_SZ)
1081 {
1082 if (!data) return ERROR_INVALID_PARAMETER;
1083 count = strlen((const char *)data) + 1;
1084 }
1085 }
1086 else if (count && is_string(type))
1087 {
1088 /* if user forgot to count terminating null, add it (yes NT does this) */
1089 if (data[count-1] && !data[count]) count++;
1090 }
1091
1092 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
1093
1094 if (is_string( type )) /* need to convert to Unicode */
1095 {
1096 DWORD lenW;
1097 RtlMultiByteToUnicodeSize( &lenW, (const char *)data, count );
1098 if (!(dataW = HeapAlloc( GetProcessHeap(), 0, lenW ))) return ERROR_OUTOFMEMORY;
1099 RtlMultiByteToUnicodeN( dataW, lenW, NULL, (const char *)data, count );
1100 count = lenW;
1101 data = (BYTE *)dataW;
1102 }
1103
1104 RtlInitAnsiString( &nameA, name );
1105 if (!(status = RtlAnsiStringToUnicodeString( &NtCurrentTeb()->StaticUnicodeString,
1106 &nameA, FALSE )))
1107 {
1108 status = NtSetValueKey( hkey, &NtCurrentTeb()->StaticUnicodeString, 0, type, data, count );
1109 }
1110 HeapFree( GetProcessHeap(), 0, dataW );
1111 return RtlNtStatusToDosError( status );
1112 }
1113
1114
1115 /******************************************************************************
1116 * RegSetValueW [ADVAPI32.@]
1117 *
1118 * Sets the data for the default or unnamed value of a reg key.
1119 *
1120 * PARAMS
1121 * hKey [I] Handle to an open key.
1122 * lpSubKey [I] Name of a subkey of hKey.
1123 * dwType [I] Type of information to store.
1124 * lpData [I] String that contains the data to set for the default value.
1125 * cbData [I] Ignored.
1126 *
1127 * RETURNS
1128 * Success: ERROR_SUCCESS
1129 * Failure: nonzero error code from Winerror.h
1130 */
1131 LSTATUS WINAPI RegSetValueW( HKEY hkey, LPCWSTR name, DWORD type, LPCWSTR data, DWORD count )
1132 {
1133 HKEY subkey = hkey;
1134 DWORD ret;
1135
1136 TRACE("(%p,%s,%d,%s,%d)\n", hkey, debugstr_w(name), type, debugstr_w(data), count );
1137
1138 if (type != REG_SZ || !data) return ERROR_INVALID_PARAMETER;
1139
1140 if (name && name[0]) /* need to create the subkey */
1141 {
1142 if ((ret = RegCreateKeyW( hkey, name, &subkey )) != ERROR_SUCCESS) return ret;
1143 }
1144
1145 ret = RegSetValueExW( subkey, NULL, 0, REG_SZ, (const BYTE*)data,
1146 (strlenW( data ) + 1) * sizeof(WCHAR) );
1147 if (subkey != hkey) RegCloseKey( subkey );
1148 return ret;
1149 }
1150
1151
1152 /******************************************************************************
1153 * RegSetValueA [ADVAPI32.@]
1154 *
1155 * See RegSetValueW.
1156 */
1157 LSTATUS WINAPI RegSetValueA( HKEY hkey, LPCSTR name, DWORD type, LPCSTR data, DWORD count )
1158 {
1159 HKEY subkey = hkey;
1160 DWORD ret;
1161
1162 TRACE("(%p,%s,%d,%s,%d)\n", hkey, debugstr_a(name), type, debugstr_a(data), count );
1163
1164 if (type != REG_SZ || !data) return ERROR_INVALID_PARAMETER;
1165
1166 if (name && name[0]) /* need to create the subkey */
1167 {
1168 if ((ret = RegCreateKeyA( hkey, name, &subkey )) != ERROR_SUCCESS) return ret;
1169 }
1170 ret = RegSetValueExA( subkey, NULL, 0, REG_SZ, (const BYTE*)data, strlen(data)+1 );
1171 if (subkey != hkey) RegCloseKey( subkey );
1172 return ret;
1173 }
1174
1175
1176
1177 /******************************************************************************
1178 * RegQueryValueExW [ADVAPI32.@]
1179 *
1180 * See RegQueryValueExA.
1181 */
1182 LSTATUS WINAPI RegQueryValueExW( HKEY hkey, LPCWSTR name, LPDWORD reserved, LPDWORD type,
1183 LPBYTE data, LPDWORD count )
1184 {
1185 NTSTATUS status;
1186 UNICODE_STRING name_str;
1187 DWORD total_size;
1188 char buffer[256], *buf_ptr = buffer;
1189 KEY_VALUE_PARTIAL_INFORMATION *info = (KEY_VALUE_PARTIAL_INFORMATION *)buffer;
1190 static const int info_size = offsetof( KEY_VALUE_PARTIAL_INFORMATION, Data );
1191
1192 TRACE("(%p,%s,%p,%p,%p,%p=%d)\n",
1193 hkey, debugstr_w(name), reserved, type, data, count,
1194 (count && data) ? *count : 0 );
1195
1196 if ((data && !count) || reserved) return ERROR_INVALID_PARAMETER;
1197 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
1198
1199 RtlInitUnicodeString( &name_str, name );
1200
1201 if (data) total_size = min( sizeof(buffer), *count + info_size );
1202 else
1203 {
1204 total_size = info_size;
1205 if (count) *count = 0;
1206 }
1207
1208 status = NtQueryValueKey( hkey, &name_str, KeyValuePartialInformation,
1209 buffer, total_size, &total_size );
1210 if (status && status != STATUS_BUFFER_OVERFLOW) goto done;
1211
1212 if (data)
1213 {
1214 /* retry with a dynamically allocated buffer */
1215 while (status == STATUS_BUFFER_OVERFLOW && total_size - info_size <= *count)
1216 {
1217 if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
1218 if (!(buf_ptr = HeapAlloc( GetProcessHeap(), 0, total_size )))
1219 return ERROR_NOT_ENOUGH_MEMORY;
1220 info = (KEY_VALUE_PARTIAL_INFORMATION *)buf_ptr;
1221 status = NtQueryValueKey( hkey, &name_str, KeyValuePartialInformation,
1222 buf_ptr, total_size, &total_size );
1223 }
1224
1225 if (!status)
1226 {
1227 memcpy( data, buf_ptr + info_size, total_size - info_size );
1228 /* if the type is REG_SZ and data is not 0-terminated
1229 * and there is enough space in the buffer NT appends a \0 */
1230 if (total_size - info_size <= *count-sizeof(WCHAR) && is_string(info->Type))
1231 {
1232 WCHAR *ptr = (WCHAR *)(data + total_size - info_size);
1233 if (ptr > (WCHAR *)data && ptr[-1]) *ptr = 0;
1234 }
1235 }
1236 else if (status != STATUS_BUFFER_OVERFLOW) goto done;
1237 }
1238 else status = STATUS_SUCCESS;
1239
1240 if (type) *type = info->Type;
1241 if (count) *count = total_size - info_size;
1242
1243 done:
1244 if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
1245 return RtlNtStatusToDosError(status);
1246 }
1247
1248
1249 /******************************************************************************
1250 * RegQueryValueExA [ADVAPI32.@]
1251 *
1252 * Get the type and contents of a specified value under with a key.
1253 *
1254 * PARAMS
1255 * hkey [I] Handle of the key to query
1256 * name [I] Name of value under hkey to query
1257 * reserved [I] Reserved - must be NULL
1258 * type [O] Destination for the value type, or NULL if not required
1259 * data [O] Destination for the values contents, or NULL if not required
1260 * count [I/O] Size of data, updated with the number of bytes returned
1261 *
1262 * RETURNS
1263 * Success: ERROR_SUCCESS. *count is updated with the number of bytes copied to data.
1264 * Failure: ERROR_INVALID_HANDLE, if hkey is invalid.
1265 * ERROR_INVALID_PARAMETER, if any other parameter is invalid.
1266 * ERROR_MORE_DATA, if on input *count is too small to hold the contents.
1267 *
1268 * NOTES
1269 * MSDN states that if data is too small it is partially filled. In reality
1270 * it remains untouched.
1271 */
1272 LSTATUS WINAPI RegQueryValueExA( HKEY hkey, LPCSTR name, LPDWORD reserved, LPDWORD type,
1273 LPBYTE data, LPDWORD count )
1274 {
1275 NTSTATUS status;
1276 ANSI_STRING nameA;
1277 DWORD total_size, datalen = 0;
1278 char buffer[256], *buf_ptr = buffer;
1279 KEY_VALUE_PARTIAL_INFORMATION *info = (KEY_VALUE_PARTIAL_INFORMATION *)buffer;
1280 static const int info_size = offsetof( KEY_VALUE_PARTIAL_INFORMATION, Data );
1281
1282 TRACE("(%p,%s,%p,%p,%p,%p=%d)\n",
1283 hkey, debugstr_a(name), reserved, type, data, count, count ? *count : 0 );
1284
1285 if ((data && !count) || reserved) return ERROR_INVALID_PARAMETER;
1286 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
1287
1288 if (count) datalen = *count;
1289 if (!data && count) *count = 0;
1290
1291 /* this matches Win9x behaviour - NT sets *type to a random value */
1292 if (type) *type = REG_NONE;
1293
1294 RtlInitAnsiString( &nameA, name );
1295 if ((status = RtlAnsiStringToUnicodeString( &NtCurrentTeb()->StaticUnicodeString,
1296 &nameA, FALSE )))
1297 return RtlNtStatusToDosError(status);
1298
1299 status = NtQueryValueKey( hkey, &NtCurrentTeb()->StaticUnicodeString,
1300 KeyValuePartialInformation, buffer, sizeof(buffer), &total_size );
1301 if (status && status != STATUS_BUFFER_OVERFLOW) goto done;
1302
1303 /* we need to fetch the contents for a string type even if not requested,
1304 * because we need to compute the length of the ASCII string. */
1305 if (data || is_string(info->Type))
1306 {
1307 /* retry with a dynamically allocated buffer */
1308 while (status == STATUS_BUFFER_OVERFLOW)
1309 {
1310 if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
1311 if (!(buf_ptr = HeapAlloc( GetProcessHeap(), 0, total_size )))
1312 {
1313 status = STATUS_NO_MEMORY;
1314 goto done;
1315 }
1316 info = (KEY_VALUE_PARTIAL_INFORMATION *)buf_ptr;
1317 status = NtQueryValueKey( hkey, &NtCurrentTeb()->StaticUnicodeString,
1318 KeyValuePartialInformation, buf_ptr, total_size, &total_size );
1319 }
1320
1321 if (status) goto done;
1322
1323 if (is_string(info->Type))
1324 {
1325 DWORD len;
1326
1327 RtlUnicodeToMultiByteSize( &len, (WCHAR *)(buf_ptr + info_size),
1328 total_size - info_size );
1329 if (data && len)
1330 {
1331 if (len > datalen) status = STATUS_BUFFER_OVERFLOW;
1332 else
1333 {
1334 RtlUnicodeToMultiByteN( (char*)data, len, NULL, (WCHAR *)(buf_ptr + info_size),
1335 total_size - info_size );
1336 /* if the type is REG_SZ and data is not 0-terminated
1337 * and there is enough space in the buffer NT appends a \0 */
1338 if (len < datalen && data[len-1]) data[len] = 0;
1339 }
1340 }
1341 total_size = len + info_size;
1342 }
1343 else if (data)
1344 {
1345 if (total_size - info_size > datalen) status = STATUS_BUFFER_OVERFLOW;
1346 else memcpy( data, buf_ptr + info_size, total_size - info_size );
1347 }
1348 }
1349 else status = STATUS_SUCCESS;
1350
1351 if (type) *type = info->Type;
1352 if (count) *count = total_size - info_size;
1353
1354 done:
1355 if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
1356 return RtlNtStatusToDosError(status);
1357 }
1358
1359
1360 /******************************************************************************
1361 * RegQueryValueW [ADVAPI32.@]
1362 *
1363 * Retrieves the data associated with the default or unnamed value of a key.
1364 *
1365 * PARAMS
1366 * hkey [I] Handle to an open key.
1367 * name [I] Name of the subkey of hKey.
1368 * data [O] Receives the string associated with the default value
1369 * of the key.
1370 * count [I/O] Size of lpValue in bytes.
1371 *
1372 * RETURNS
1373 * Success: ERROR_SUCCESS
1374 * Failure: nonzero error code from Winerror.h
1375 */
1376 LSTATUS WINAPI RegQueryValueW( HKEY hkey, LPCWSTR name, LPWSTR data, LPLONG count )
1377 {
1378 DWORD ret;
1379 HKEY subkey = hkey;
1380
1381 TRACE("(%p,%s,%p,%d)\n", hkey, debugstr_w(name), data, count ? *count : 0 );
1382
1383 if (name && name[0])
1384 {
1385 if ((ret = RegOpenKeyW( hkey, name, &subkey )) != ERROR_SUCCESS) return ret;
1386 }
1387 ret = RegQueryValueExW( subkey, NULL, NULL, NULL, (LPBYTE)data, (LPDWORD)count );
1388 if (subkey != hkey) RegCloseKey( subkey );
1389 if (ret == ERROR_FILE_NOT_FOUND)
1390 {
1391 /* return empty string if default value not found */
1392 if (data) *data = 0;
1393 if (count) *count = sizeof(WCHAR);
1394 ret = ERROR_SUCCESS;
1395 }
1396 return ret;
1397 }
1398
1399
1400 /******************************************************************************
1401 * RegQueryValueA [ADVAPI32.@]
1402 *
1403 * See RegQueryValueW.
1404 */
1405 LSTATUS WINAPI RegQueryValueA( HKEY hkey, LPCSTR name, LPSTR data, LPLONG count )
1406 {
1407 DWORD ret;
1408 HKEY subkey = hkey;
1409
1410 TRACE("(%p,%s,%p,%d)\n", hkey, debugstr_a(name), data, count ? *count : 0 );
1411
1412 if (name && name[0])
1413 {
1414 if ((ret = RegOpenKeyA( hkey, name, &subkey )) != ERROR_SUCCESS) return ret;
1415 }
1416 ret = RegQueryValueExA( subkey, NULL, NULL, NULL, (LPBYTE)data, (LPDWORD)count );
1417 if (subkey != hkey) RegCloseKey( subkey );
1418 if (ret == ERROR_FILE_NOT_FOUND)
1419 {
1420 /* return empty string if default value not found */
1421 if (data) *data = 0;
1422 if (count) *count = 1;
1423 ret = ERROR_SUCCESS;
1424 }
1425 return ret;
1426 }
1427
1428
1429 /******************************************************************************
1430 * ADVAPI_ApplyRestrictions [internal]
1431 *
1432 * Helper function for RegGetValueA/W.
1433 */
1434 static VOID ADVAPI_ApplyRestrictions( DWORD dwFlags, DWORD dwType,
1435 DWORD cbData, PLONG ret )
1436 {
1437 /* Check if the type is restricted by the passed flags */
1438 if (*ret == ERROR_SUCCESS || *ret == ERROR_MORE_DATA)
1439 {
1440 DWORD dwMask = 0;
1441
1442 switch (dwType)
1443 {
1444 case REG_NONE: dwMask = RRF_RT_REG_NONE; break;
1445 case REG_SZ: dwMask = RRF_RT_REG_SZ; break;
1446 case REG_EXPAND_SZ: dwMask = RRF_RT_REG_EXPAND_SZ; break;
1447 case REG_MULTI_SZ: dwMask = RRF_RT_REG_MULTI_SZ; break;
1448 case REG_BINARY: dwMask = RRF_RT_REG_BINARY; break;
1449 case REG_DWORD: dwMask = RRF_RT_REG_DWORD; break;
1450 case REG_QWORD: dwMask = RRF_RT_REG_QWORD; break;
1451 }
1452
1453 if (dwFlags & dwMask)
1454 {
1455 /* Type is not restricted, check for size mismatch */
1456 if (dwType == REG_BINARY)
1457 {
1458 DWORD cbExpect = 0;
1459
1460 if ((dwFlags & RRF_RT_ANY) == RRF_RT_DWORD)
1461 cbExpect = 4;
1462 else if ((dwFlags & RRF_RT_ANY) == RRF_RT_QWORD)
1463 cbExpect = 8;
1464
1465 if (cbExpect && cbData != cbExpect)
1466 *ret = ERROR_DATATYPE_MISMATCH;
1467 }
1468 }
1469 else *ret = ERROR_UNSUPPORTED_TYPE;
1470 }
1471 }
1472
1473
1474 /******************************************************************************
1475 * RegGetValueW [ADVAPI32.@]
1476 *
1477 * Retrieves the type and data for a value name associated with a key,
1478 * optionally expanding its content and restricting its type.
1479 *
1480 * PARAMS
1481 * hKey [I] Handle to an open key.
1482 * pszSubKey [I] Name of the subkey of hKey.
1483 * pszValue [I] Name of value under hKey/szSubKey to query.
1484 * dwFlags [I] Flags restricting the value type to retrieve.
1485 * pdwType [O] Destination for the values type, may be NULL.
1486 * pvData [O] Destination for the values content, may be NULL.
1487 * pcbData [I/O] Size of pvData, updated with the size in bytes required to
1488 * retrieve the whole content, including the trailing '\0'
1489 * for strings.
1490 *
1491 * RETURNS
1492 * Success: ERROR_SUCCESS
1493 * Failure: nonzero error code from Winerror.h
1494 *
1495 * NOTES
1496 * - Unless RRF_NOEXPAND is specified, REG_EXPAND_SZ values are automatically
1497 * expanded and pdwType is set to REG_SZ instead.
1498 * - Restrictions are applied after expanding, using RRF_RT_REG_EXPAND_SZ
1499 * without RRF_NOEXPAND is thus not allowed.
1500 * An exception is the case where RRF_RT_ANY is specified, because then
1501 * RRF_NOEXPAND is allowed.
1502 */
1503 LSTATUS WINAPI RegGetValueW( HKEY hKey, LPCWSTR pszSubKey, LPCWSTR pszValue,
1504 DWORD dwFlags, LPDWORD pdwType, PVOID pvData,
1505 LPDWORD pcbData )
1506 {
1507 DWORD dwType, cbData = pcbData ? *pcbData : 0;
1508 PVOID pvBuf = NULL;
1509 LONG ret;
1510
1511 TRACE("(%p,%s,%s,%d,%p,%p,%p=%d)\n",
1512 hKey, debugstr_w(pszSubKey), debugstr_w(pszValue), dwFlags, pdwType,
1513 pvData, pcbData, cbData);
1514
1515 if (pvData && !pcbData)
1516 return ERROR_INVALID_PARAMETER;
1517 if ((dwFlags & RRF_RT_REG_EXPAND_SZ) && !(dwFlags & RRF_NOEXPAND) &&
1518 ((dwFlags & RRF_RT_ANY) != RRF_RT_ANY))
1519 return ERROR_INVALID_PARAMETER;
1520
1521 if (pszSubKey && pszSubKey[0])
1522 {
1523 ret = RegOpenKeyExW(hKey, pszSubKey, 0, KEY_QUERY_VALUE, &hKey);
1524 if (ret != ERROR_SUCCESS) return ret;
1525 }
1526
1527 ret = RegQueryValueExW(hKey, pszValue, NULL, &dwType, pvData, &cbData);
1528
1529 /* If we are going to expand we need to read in the whole the value even
1530 * if the passed buffer was too small as the expanded string might be
1531 * smaller than the unexpanded one and could fit into cbData bytes. */
1532 if ((ret == ERROR_SUCCESS || ret == ERROR_MORE_DATA) &&
1533 dwType == REG_EXPAND_SZ && !(dwFlags & RRF_NOEXPAND))
1534 {
1535 do {
1536 HeapFree(GetProcessHeap(), 0, pvBuf);
1537
1538 pvBuf = HeapAlloc(GetProcessHeap(), 0, cbData);
1539 if (!pvBuf)
1540 {
1541 ret = ERROR_NOT_ENOUGH_MEMORY;
1542 break;
1543 }
1544
1545 if (ret == ERROR_MORE_DATA || !pvData)
1546 ret = RegQueryValueExW(hKey, pszValue, NULL,
1547 &dwType, pvBuf, &cbData);
1548 else
1549 {
1550 /* Even if cbData was large enough we have to copy the
1551 * string since ExpandEnvironmentStrings can't handle
1552 * overlapping buffers. */
1553 CopyMemory(pvBuf, pvData, cbData);
1554 }
1555
1556 /* Both the type or the value itself could have been modified in
1557 * between so we have to keep retrying until the buffer is large
1558 * enough or we no longer have to expand the value. */
1559 } while (dwType == REG_EXPAND_SZ && ret == ERROR_MORE_DATA);
1560
1561 if (ret == ERROR_SUCCESS)
1562 {
1563 /* Recheck dwType in case it changed since the first call */
1564 if (dwType == REG_EXPAND_SZ)
1565 {
1566 cbData = ExpandEnvironmentStringsW(pvBuf, pvData,
1567 pcbData ? *pcbData : 0) * sizeof(WCHAR);
1568 dwType = REG_SZ;
1569 if(pvData && pcbData && cbData > *pcbData)
1570 ret = ERROR_MORE_DATA;
1571 }
1572 else if (pvData)
1573 CopyMemory(pvData, pvBuf, *pcbData);
1574 }
1575
1576 HeapFree(GetProcessHeap(), 0, pvBuf);
1577 }
1578
1579 if (pszSubKey && pszSubKey[0])
1580 RegCloseKey(hKey);
1581
1582 ADVAPI_ApplyRestrictions(dwFlags, dwType, cbData, &ret);
1583
1584 if (pvData && ret != ERROR_SUCCESS && (dwFlags & RRF_ZEROONFAILURE))
1585 ZeroMemory(pvData, *pcbData);
1586
1587 if (pdwType) *pdwType = dwType;
1588 if (pcbData) *pcbData = cbData;
1589
1590 return ret;
1591 }
1592
1593
1594 /******************************************************************************
1595 * RegGetValueA [ADVAPI32.@]
1596 *
1597 * See RegGetValueW.
1598 */
1599 LSTATUS WINAPI RegGetValueA( HKEY hKey, LPCSTR pszSubKey, LPCSTR pszValue,
1600 DWORD dwFlags, LPDWORD pdwType, PVOID pvData,
1601 LPDWORD pcbData )
1602 {
1603 DWORD dwType, cbData = pcbData ? *pcbData : 0;
1604 PVOID pvBuf = NULL;
1605 LONG ret;
1606
1607 TRACE("(%p,%s,%s,%d,%p,%p,%p=%d)\n",
1608 hKey, pszSubKey, pszValue, dwFlags, pdwType, pvData, pcbData,
1609 cbData);
1610
1611 if (pvData && !pcbData)
1612 return ERROR_INVALID_PARAMETER;
1613 if ((dwFlags & RRF_RT_REG_EXPAND_SZ) && !(dwFlags & RRF_NOEXPAND) &&
1614 ((dwFlags & RRF_RT_ANY) != RRF_RT_ANY))
1615 return ERROR_INVALID_PARAMETER;
1616
1617 if (pszSubKey && pszSubKey[0])
1618 {
1619 ret = RegOpenKeyExA(hKey, pszSubKey, 0, KEY_QUERY_VALUE, &hKey);
1620 if (ret != ERROR_SUCCESS) return ret;
1621 }
1622
1623 ret = RegQueryValueExA(hKey, pszValue, NULL, &dwType, pvData, &cbData);
1624
1625 /* If we are going to expand we need to read in the whole the value even
1626 * if the passed buffer was too small as the expanded string might be
1627 * smaller than the unexpanded one and could fit into cbData bytes. */
1628 if ((ret == ERROR_SUCCESS || ret == ERROR_MORE_DATA) &&
1629 dwType == REG_EXPAND_SZ && !(dwFlags & RRF_NOEXPAND))
1630 {
1631 do {
1632 HeapFree(GetProcessHeap(), 0, pvBuf);
1633
1634 pvBuf = HeapAlloc(GetProcessHeap(), 0, cbData);
1635 if (!pvBuf)
1636 {
1637 ret = ERROR_NOT_ENOUGH_MEMORY;
1638 break;
1639 }
1640
1641 if (ret == ERROR_MORE_DATA || !pvData)
1642 ret = RegQueryValueExA(hKey, pszValue, NULL,
1643 &dwType, pvBuf, &cbData);
1644 else
1645 {
1646 /* Even if cbData was large enough we have to copy the
1647 * string since ExpandEnvironmentStrings can't handle
1648 * overlapping buffers. */
1649 CopyMemory(pvBuf, pvData, cbData);
1650 }
1651
1652 /* Both the type or the value itself could have been modified in
1653 * between so we have to keep retrying until the buffer is large
1654 * enough or we no longer have to expand the value. */
1655 } while (dwType == REG_EXPAND_SZ && ret == ERROR_MORE_DATA);
1656
1657 if (ret == ERROR_SUCCESS)
1658 {
1659 /* Recheck dwType in case it changed since the first call */
1660 if (dwType == REG_EXPAND_SZ)
1661 {
1662 cbData = ExpandEnvironmentStringsA(pvBuf, pvData,
1663 pcbData ? *pcbData : 0);
1664 dwType = REG_SZ;
1665 if(pvData && pcbData && cbData > *pcbData)
1666 ret = ERROR_MORE_DATA;
1667 }
1668 else if (pvData)
1669 CopyMemory(pvData, pvBuf, *pcbData);
1670 }
1671
1672 HeapFree(GetProcessHeap(), 0, pvBuf);
1673 }
1674
1675 if (pszSubKey && pszSubKey[0])
1676 RegCloseKey(hKey);
1677
1678 ADVAPI_ApplyRestrictions(dwFlags, dwType, cbData, &ret);
1679
1680 if (pvData && ret != ERROR_SUCCESS && (dwFlags & RRF_ZEROONFAILURE))
1681 ZeroMemory(pvData, *pcbData);
1682
1683 if (pdwType) *pdwType = dwType;
1684 if (pcbData) *pcbData = cbData;
1685
1686 return ret;
1687 }
1688
1689
1690 /******************************************************************************
1691 * RegEnumValueW [ADVAPI32.@]
1692 *
1693 * Enumerates the values for the specified open registry key.
1694 *
1695 * PARAMS
1696 * hkey [I] Handle to key to query
1697 * index [I] Index of value to query
1698 * value [O] Value string
1699 * val_count [I/O] Size of value buffer (in wchars)
1700 * reserved [I] Reserved
1701 * type [O] Type code
1702 * data [O] Value data
1703 * count [I/O] Size of data buffer (in bytes)
1704 *
1705 * RETURNS
1706 * Success: ERROR_SUCCESS
1707 * Failure: nonzero error code from Winerror.h
1708 */
1709
1710 LSTATUS WINAPI RegEnumValueW( HKEY hkey, DWORD index, LPWSTR value, LPDWORD val_count,
1711 LPDWORD reserved, LPDWORD type, LPBYTE data, LPDWORD count )
1712 {
1713 NTSTATUS status;
1714 DWORD total_size;
1715 char buffer[256], *buf_ptr = buffer;
1716 KEY_VALUE_FULL_INFORMATION *info = (KEY_VALUE_FULL_INFORMATION *)buffer;
1717 static const int info_size = offsetof( KEY_VALUE_FULL_INFORMATION, Name );
1718
1719 TRACE("(%p,%d,%p,%p,%p,%p,%p,%p)\n",
1720 hkey, index, value, val_count, reserved, type, data, count );
1721
1722 /* NT only checks count, not val_count */
1723 if ((data && !count) || reserved) return ERROR_INVALID_PARAMETER;
1724 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
1725
1726 total_size = info_size + (MAX_PATH + 1) * sizeof(WCHAR);
1727 if (data) total_size += *count;
1728 total_size = min( sizeof(buffer), total_size );
1729
1730 status = NtEnumerateValueKey( hkey, index, KeyValueFullInformation,
1731 buffer, total_size, &total_size );
1732 if (status && status != STATUS_BUFFER_OVERFLOW) goto done;
1733
1734 if (value || data)
1735 {
1736 /* retry with a dynamically allocated buffer */
1737 while (status == STATUS_BUFFER_OVERFLOW)
1738 {
1739 if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
1740 if (!(buf_ptr = HeapAlloc( GetProcessHeap(), 0, total_size )))
1741 return ERROR_NOT_ENOUGH_MEMORY;
1742 info = (KEY_VALUE_FULL_INFORMATION *)buf_ptr;
1743 status = NtEnumerateValueKey( hkey, index, KeyValueFullInformation,
1744 buf_ptr, total_size, &total_size );
1745 }
1746
1747 if (status) goto done;
1748
1749 if (value)
1750 {
1751 if (info->NameLength/sizeof(WCHAR) >= *val_count)
1752 {
1753 status = STATUS_BUFFER_OVERFLOW;
1754 goto overflow;
1755 }
1756 memcpy( value, info->Name, info->NameLength );
1757 *val_count = info->NameLength / sizeof(WCHAR);
1758 value[*val_count] = 0;
1759 }
1760
1761 if (data)
1762 {
1763 if (total_size - info->DataOffset > *count)
1764 {
1765 status = STATUS_BUFFER_OVERFLOW;
1766 goto overflow;
1767 }
1768 memcpy( data, buf_ptr + info->DataOffset, total_size - info->DataOffset );
1769 if (total_size - info->DataOffset <= *count-sizeof(WCHAR) && is_string(info->Type))
1770 {
1771 /* if the type is REG_SZ and data is not 0-terminated
1772 * and there is enough space in the buffer NT appends a \0 */
1773 WCHAR *ptr = (WCHAR *)(data + total_size - info->DataOffset);
1774 if (ptr > (WCHAR *)data && ptr[-1]) *ptr = 0;
1775 }
1776 }
1777 }
1778 else status = STATUS_SUCCESS;
1779
1780 overflow:
1781 if (type) *type = info->Type;
1782 if (count) *count = info->DataLength;
1783
1784 done:
1785 if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
1786 return RtlNtStatusToDosError(status);
1787 }
1788
1789
1790 /******************************************************************************
1791 * RegEnumValueA [ADVAPI32.@]
1792 *
1793 * See RegEnumValueW.
1794 */
1795 LSTATUS WINAPI RegEnumValueA( HKEY hkey, DWORD index, LPSTR value, LPDWORD val_count,
1796 LPDWORD reserved, LPDWORD type, LPBYTE data, LPDWORD count )
1797 {
1798 NTSTATUS status;
1799 DWORD total_size;
1800 char buffer[256], *buf_ptr = buffer;
1801 KEY_VALUE_FULL_INFORMATION *info = (KEY_VALUE_FULL_INFORMATION *)buffer;
1802 static const int info_size = offsetof( KEY_VALUE_FULL_INFORMATION, Name );
1803
1804 TRACE("(%p,%d,%p,%p,%p,%p,%p,%p)\n",
1805 hkey, index, value, val_count, reserved, type, data, count );
1806
1807 /* NT only checks count, not val_count */
1808 if ((data && !count) || reserved) return ERROR_INVALID_PARAMETER;
1809 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
1810
1811 total_size = info_size + (MAX_PATH + 1) * sizeof(WCHAR);
1812 if (data) total_size += *count;
1813 total_size = min( sizeof(buffer), total_size );
1814
1815 status = NtEnumerateValueKey( hkey, index, KeyValueFullInformation,
1816 buffer, total_size, &total_size );
1817 if (status && status != STATUS_BUFFER_OVERFLOW) goto done;
1818
1819 /* we need to fetch the contents for a string type even if not requested,
1820 * because we need to compute the length of the ASCII string. */
1821 if (value || data || is_string(info->Type))
1822 {
1823 /* retry with a dynamically allocated buffer */
1824 while (status == STATUS_BUFFER_OVERFLOW)
1825 {
1826 if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
1827 if (!(buf_ptr = HeapAlloc( GetProcessHeap(), 0, total_size )))
1828 return ERROR_NOT_ENOUGH_MEMORY;
1829 info = (KEY_VALUE_FULL_INFORMATION *)buf_ptr;
1830 status = NtEnumerateValueKey( hkey, index, KeyValueFullInformation,
1831 buf_ptr, total_size, &total_size );
1832 }
1833
1834 if (status) goto done;
1835
1836 if (is_string(info->Type))
1837 {
1838 DWORD len;
1839 RtlUnicodeToMultiByteSize( &len, (WCHAR *)(buf_ptr + info->DataOffset),
1840 total_size - info->DataOffset );
1841 if (data && len)
1842 {
1843 if (len > *count) status = STATUS_BUFFER_OVERFLOW;
1844 else
1845 {
1846 RtlUnicodeToMultiByteN( (char*)data, len, NULL, (WCHAR *)(buf_ptr + info->DataOffset),
1847 total_size - info->DataOffset );
1848 /* if the type is REG_SZ and data is not 0-terminated
1849 * and there is enough space in the buffer NT appends a \0 */
1850 if (len < *count && data[len-1]) data[len] = 0;
1851 }
1852 }
1853 info->DataLength = len;
1854 }
1855 else if (data)
1856 {
1857 if (total_size - info->DataOffset > *count) status = STATUS_BUFFER_OVERFLOW;
1858 else memcpy( data, buf_ptr + info->DataOffset, total_size - info->DataOffset );
1859 }
1860
1861 if (value && !status)
1862 {
1863 DWORD len;
1864
1865 RtlUnicodeToMultiByteSize( &len, info->Name, info->NameLength );
1866 if (len >= *val_count)
1867 {
1868 status = STATUS_BUFFER_OVERFLOW;
1869 if (*val_count)
1870 {
1871 len = *val_count - 1;
1872 RtlUnicodeToMultiByteN( value, len, NULL, info->Name, info->NameLength );
1873 value[len] = 0;
1874 }
1875 }
1876 else
1877 {
1878 RtlUnicodeToMultiByteN( value, len, NULL, info->Name, info->NameLength );
1879 value[len] = 0;
1880 *val_count = len;
1881 }
1882 }
1883 }
1884 else status = STATUS_SUCCESS;
1885
1886 if (type) *type = info->Type;
1887 if (count) *count = info->DataLength;
1888
1889 done:
1890 if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
1891 return RtlNtStatusToDosError(status);
1892 }
1893
1894
1895
1896 /******************************************************************************
1897 * RegDeleteValueW [ADVAPI32.@]
1898 *
1899 * See RegDeleteValueA.
1900 */
1901 LSTATUS WINAPI RegDeleteValueW( HKEY hkey, LPCWSTR name )
1902 {
1903 UNICODE_STRING nameW;
1904
1905 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
1906
1907 RtlInitUnicodeString( &nameW, name );
1908 return RtlNtStatusToDosError( NtDeleteValueKey( hkey, &nameW ) );
1909 }
1910
1911
1912 /******************************************************************************
1913 * RegDeleteValueA [ADVAPI32.@]
1914 *
1915 * Delete a value from the registry.
1916 *
1917 * PARAMS
1918 * hkey [I] Registry handle of the key holding the value
1919 * name [I] Name of the value under hkey to delete
1920 *
1921 * RETURNS
1922 * Success: ERROR_SUCCESS
1923 * Failure: nonzero error code from Winerror.h
1924 */
1925 LSTATUS WINAPI RegDeleteValueA( HKEY hkey, LPCSTR name )
1926 {
1927 STRING nameA;
1928 NTSTATUS status;
1929
1930 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
1931
1932 RtlInitAnsiString( &nameA, name );
1933 if (!(status = RtlAnsiStringToUnicodeString( &NtCurrentTeb()->StaticUnicodeString,
1934 &nameA, FALSE )))
1935 status = NtDeleteValueKey( hkey, &NtCurrentTeb()->StaticUnicodeString );
1936 return RtlNtStatusToDosError( status );
1937 }
1938
1939
1940 /******************************************************************************
1941 * RegLoadKeyW [ADVAPI32.@]
1942 *
1943 * Create a subkey under HKEY_USERS or HKEY_LOCAL_MACHINE and store
1944 * registration information from a specified file into that subkey.
1945 *
1946 * PARAMS
1947 * hkey [I] Handle of open key
1948 * subkey [I] Address of name of subkey
1949 * filename [I] Address of filename for registry information
1950 *
1951 * RETURNS
1952 * Success: ERROR_SUCCESS
1953 * Failure: nonzero error code from Winerror.h
1954 */
1955 LSTATUS WINAPI RegLoadKeyW( HKEY hkey, LPCWSTR subkey, LPCWSTR filename )
1956 {
1957 OBJECT_ATTRIBUTES destkey, file;
1958 UNICODE_STRING subkeyW, filenameW;
1959 NTSTATUS status;
1960
1961 if (!(hkey = get_special_root_hkey(hkey))) return ERROR_INVALID_HANDLE;
1962
1963 destkey.Length = sizeof(destkey);
1964 destkey.RootDirectory = hkey; /* root key: HKLM or HKU */
1965 destkey.ObjectName = &subkeyW; /* name of the key */
1966 destkey.Attributes = 0;
1967 destkey.SecurityDescriptor = NULL;
1968 destkey.SecurityQualityOfService = NULL;
1969 RtlInitUnicodeString(&subkeyW, subkey);
1970
1971 file.Length = sizeof(file);
1972 file.RootDirectory = NULL;
1973 file.ObjectName = &filenameW; /* file containing the hive */
1974 file.Attributes = OBJ_CASE_INSENSITIVE;
1975 file.SecurityDescriptor = NULL;
1976 file.SecurityQualityOfService = NULL;
1977 RtlDosPathNameToNtPathName_U(filename, &filenameW, NULL, NULL);
1978
1979 status = NtLoadKey(&destkey, &file);
1980 RtlFreeUnicodeString(&filenameW);
1981 return RtlNtStatusToDosError( status );
1982 }
1983
1984
1985 /******************************************************************************
1986 * RegLoadKeyA [ADVAPI32.@]
1987 *
1988 * See RegLoadKeyW.
1989 */
1990 LSTATUS WINAPI RegLoadKeyA( HKEY hkey, LPCSTR subkey, LPCSTR filename )
1991 {
1992 UNICODE_STRING subkeyW, filenameW;
1993 STRING subkeyA, filenameA;
1994 NTSTATUS status;
1995 LONG ret;
1996
1997 RtlInitAnsiString(&subkeyA, subkey);
1998 RtlInitAnsiString(&filenameA, filename);
1999
2000 RtlInitUnicodeString(&subkeyW, NULL);
2001 RtlInitUnicodeString(&filenameW, NULL);
2002 if (!(status = RtlAnsiStringToUnicodeString(&subkeyW, &subkeyA, TRUE)) &&
2003 !(status = RtlAnsiStringToUnicodeString(&filenameW, &filenameA, TRUE)))
2004 {
2005 ret = RegLoadKeyW(hkey, subkeyW.Buffer, filenameW.Buffer);
2006 }
2007 else ret = RtlNtStatusToDosError(status);
2008 RtlFreeUnicodeString(&subkeyW);
2009 RtlFreeUnicodeString(&filenameW);
2010 return ret;
2011 }
2012
2013
2014 /******************************************************************************
2015 * RegSaveKeyW [ADVAPI32.@]
2016 *
2017 * Save a key and all of its subkeys and values to a new file in the standard format.
2018 *
2019 * PARAMS
2020 * hkey [I] Handle of key where save begins
2021 * lpFile [I] Address of filename to save to
2022 * sa [I] Address of security structure
2023 *
2024 * RETURNS
2025 * Success: ERROR_SUCCESS
2026 * Failure: nonzero error code from Winerror.h
2027 */
2028 LSTATUS WINAPI RegSaveKeyW( HKEY hkey, LPCWSTR file, LPSECURITY_ATTRIBUTES sa )
2029 {
2030 static const WCHAR format[] =
2031 {'r','e','g','%','0','4','x','.','t','m','p',0};
2032 WCHAR buffer[MAX_PATH];
2033 int count = 0;
2034 LPWSTR nameW;
2035 DWORD ret, err;
2036 HANDLE handle;
2037
2038 TRACE( "(%p,%s,%p)\n", hkey, debugstr_w(file), sa );
2039
2040 if (!file || !*file) return ERROR_INVALID_PARAMETER;
2041 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
2042
2043 err = GetLastError();
2044 GetFullPathNameW( file, sizeof(buffer)/sizeof(WCHAR), buffer, &nameW );
2045
2046 for (;;)
2047 {
2048 snprintfW( nameW, 16, format, count++ );
2049 handle = CreateFileW( buffer, GENERIC_WRITE, 0, NULL,
2050 CREATE_NEW, FILE_ATTRIBUTE_NORMAL, 0 );
2051 if (handle != INVALID_HANDLE_VALUE) break;
2052 if ((ret = GetLastError()) != ERROR_FILE_EXISTS) goto done;
2053
2054 /* Something gone haywire ? Please report if this happens abnormally */
2055 if (count >= 100)
2056 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);
2057 }
2058
2059 ret = RtlNtStatusToDosError(NtSaveKey(hkey, handle));
2060
2061 CloseHandle( handle );
2062 if (!ret)
2063 {
2064 if (!MoveFileExW( buffer, file, MOVEFILE_REPLACE_EXISTING ))
2065 {
2066 ERR( "Failed to move %s to %s\n", debugstr_w(buffer),
2067 debugstr_w(file) );
2068 ret = GetLastError();
2069 }
2070 }
2071 if (ret) DeleteFileW( buffer );
2072
2073 done:
2074 SetLastError( err ); /* restore last error code */
2075 return ret;
2076 }
2077
2078
2079 /******************************************************************************
2080 * RegSaveKeyA [ADVAPI32.@]
2081 *
2082 * See RegSaveKeyW.
2083 */
2084 LSTATUS WINAPI RegSaveKeyA( HKEY hkey, LPCSTR file, LPSECURITY_ATTRIBUTES sa )
2085 {
2086 UNICODE_STRING *fileW = &NtCurrentTeb()->StaticUnicodeString;
2087 NTSTATUS status;
2088 STRING fileA;
2089
2090 RtlInitAnsiString(&fileA, file);
2091 if ((status = RtlAnsiStringToUnicodeString(fileW, &fileA, FALSE)))
2092 return RtlNtStatusToDosError( status );
2093 return RegSaveKeyW(hkey, fileW->Buffer, sa);
2094 }
2095
2096
2097 /******************************************************************************
2098 * RegRestoreKeyW [ADVAPI32.@]
2099 *
2100 * Read the registry information from a file and copy it over a key.
2101 *
2102 * PARAMS
2103 * hkey [I] Handle of key where restore begins
2104 * lpFile [I] Address of filename containing saved tree
2105 * dwFlags [I] Optional flags
2106 *
2107 * RETURNS
2108 * Success: ERROR_SUCCESS
2109 * Failure: nonzero error code from Winerror.h
2110 */
2111 LSTATUS WINAPI RegRestoreKeyW( HKEY hkey, LPCWSTR lpFile, DWORD dwFlags )
2112 {
2113 TRACE("(%p,%s,%d)\n",hkey,debugstr_w(lpFile),dwFlags);
2114
2115 /* It seems to do this check before the hkey check */
2116 if (!lpFile || !*lpFile)
2117 return ERROR_INVALID_PARAMETER;
2118
2119 FIXME("(%p,%s,%d): stub\n",hkey,debugstr_w(lpFile),dwFlags);
2120
2121 /* Check for file existence */
2122
2123 return ERROR_SUCCESS;
2124 }
2125
2126
2127 /******************************************************************************
2128 * RegRestoreKeyA [ADVAPI32.@]
2129 *
2130 * See RegRestoreKeyW.
2131 */
2132 LSTATUS WINAPI RegRestoreKeyA( HKEY hkey, LPCSTR lpFile, DWORD dwFlags )
2133 {
2134 UNICODE_STRING lpFileW;
2135 LONG ret;
2136
2137 RtlCreateUnicodeStringFromAsciiz( &lpFileW, lpFile );
2138 ret = RegRestoreKeyW( hkey, lpFileW.Buffer, dwFlags );
2139 RtlFreeUnicodeString( &lpFileW );
2140 return ret;
2141 }
2142
2143
2144 /******************************************************************************
2145 * RegUnLoadKeyW [ADVAPI32.@]
2146 *
2147 * Unload a registry key and its subkeys from the registry.
2148 *
2149 * PARAMS
2150 * hkey [I] Handle of open key
2151 * lpSubKey [I] Address of name of subkey to unload
2152 *
2153 * RETURNS
2154 * Success: ERROR_SUCCESS
2155 * Failure: nonzero error code from Winerror.h
2156 */
2157 LSTATUS WINAPI RegUnLoadKeyW( HKEY hkey, LPCWSTR lpSubKey )
2158 {
2159 DWORD ret;
2160 HKEY shkey;
2161 OBJECT_ATTRIBUTES attr;
2162 UNICODE_STRING subkey;
2163
2164 TRACE("(%p,%s)\n",hkey, debugstr_w(lpSubKey));
2165
2166 ret = RegOpenKeyW(hkey,lpSubKey,&shkey);
2167 if( ret )
2168 return ERROR_INVALID_PARAMETER;
2169
2170 RtlInitUnicodeString(&subkey, lpSubKey);
2171 InitializeObjectAttributes(&attr, &subkey, OBJ_CASE_INSENSITIVE, shkey, NULL);
2172 ret = RtlNtStatusToDosError(NtUnloadKey(&attr));
2173
2174 RegCloseKey(shkey);
2175
2176 return ret;
2177 }
2178
2179
2180 /******************************************************************************
2181 * RegUnLoadKeyA [ADVAPI32.@]
2182 *
2183 * See RegUnLoadKeyW.
2184 */
2185 LSTATUS WINAPI RegUnLoadKeyA( HKEY hkey, LPCSTR lpSubKey )
2186 {
2187 UNICODE_STRING lpSubKeyW;
2188 LONG ret;
2189
2190 RtlCreateUnicodeStringFromAsciiz( &lpSubKeyW, lpSubKey );
2191 ret = RegUnLoadKeyW( hkey, lpSubKeyW.Buffer );
2192 RtlFreeUnicodeString( &lpSubKeyW );
2193 return ret;
2194 }
2195
2196
2197 /******************************************************************************
2198 * RegReplaceKeyW [ADVAPI32.@]
2199 *
2200 * Replace the file backing a registry key and all its subkeys with another file.
2201 *
2202 * PARAMS
2203 * hkey [I] Handle of open key
2204 * lpSubKey [I] Address of name of subkey
2205 * lpNewFile [I] Address of filename for file with new data
2206 * lpOldFile [I] Address of filename for backup file
2207 *
2208 * RETURNS
2209 * Success: ERROR_SUCCESS
2210 * Failure: nonzero error code from Winerror.h
2211 */
2212 LSTATUS WINAPI RegReplaceKeyW( HKEY hkey, LPCWSTR lpSubKey, LPCWSTR lpNewFile,
2213 LPCWSTR lpOldFile )
2214 {
2215 FIXME("(%p,%s,%s,%s): stub\n", hkey, debugstr_w(lpSubKey),
2216 debugstr_w(lpNewFile),debugstr_w(lpOldFile));
2217 return ERROR_SUCCESS;
2218 }
2219
2220
2221 /******************************************************************************
2222 * RegReplaceKeyA [ADVAPI32.@]
2223 *
2224 * See RegReplaceKeyW.
2225 */
2226 LSTATUS WINAPI RegReplaceKeyA( HKEY hkey, LPCSTR lpSubKey, LPCSTR lpNewFile,
2227 LPCSTR lpOldFile )
2228 {
2229 UNICODE_STRING lpSubKeyW;
2230 UNICODE_STRING lpNewFileW;
2231 UNICODE_STRING lpOldFileW;
2232 LONG ret;
2233
2234 RtlCreateUnicodeStringFromAsciiz( &lpSubKeyW, lpSubKey );
2235 RtlCreateUnicodeStringFromAsciiz( &lpOldFileW, lpOldFile );
2236 RtlCreateUnicodeStringFromAsciiz( &lpNewFileW, lpNewFile );
2237 ret = RegReplaceKeyW( hkey, lpSubKeyW.Buffer, lpNewFileW.Buffer, lpOldFileW.Buffer );
2238 RtlFreeUnicodeString( &lpOldFileW );
2239 RtlFreeUnicodeString( &lpNewFileW );
2240 RtlFreeUnicodeString( &lpSubKeyW );
2241 return ret;
2242 }
2243
2244
2245 /******************************************************************************
2246 * RegSetKeySecurity [ADVAPI32.@]
2247 *
2248 * Set the security of an open registry key.
2249 *
2250 * PARAMS
2251 * hkey [I] Open handle of key to set
2252 * SecurityInfo [I] Descriptor contents
2253 * pSecurityDesc [I] Address of descriptor for key
2254 *
2255 * RETURNS
2256 * Success: ERROR_SUCCESS
2257 * Failure: nonzero error code from Winerror.h
2258 */
2259 LSTATUS WINAPI RegSetKeySecurity( HKEY hkey, SECURITY_INFORMATION SecurityInfo,
2260 PSECURITY_DESCRIPTOR pSecurityDesc )
2261 {
2262 TRACE("(%p,%d,%p)\n",hkey,SecurityInfo,pSecurityDesc);
2263
2264 /* It seems to perform this check before the hkey check */
2265 if ((SecurityInfo & OWNER_SECURITY_INFORMATION) ||
2266 (SecurityInfo & GROUP_SECURITY_INFORMATION) ||
2267 (SecurityInfo & DACL_SECURITY_INFORMATION) ||
2268 (SecurityInfo & SACL_SECURITY_INFORMATION)) {
2269 /* Param OK */
2270 } else
2271 return ERROR_INVALID_PARAMETER;
2272
2273 if (!pSecurityDesc)
2274 return ERROR_INVALID_PARAMETER;
2275
2276 FIXME(":(%p,%d,%p): stub\n",hkey,SecurityInfo,pSecurityDesc);
2277
2278 return ERROR_SUCCESS;
2279 }
2280
2281
2282 /******************************************************************************
2283 * RegGetKeySecurity [ADVAPI32.@]
2284 *
2285 * Get a copy of the security descriptor for a given registry key.
2286 *
2287 * PARAMS
2288 * hkey [I] Open handle of key to set
2289 * SecurityInformation [I] Descriptor contents
2290 * pSecurityDescriptor [O] Address of descriptor for key
2291 * lpcbSecurityDescriptor [I/O] Address of size of buffer and description
2292 *
2293 * RETURNS
2294 * Success: ERROR_SUCCESS
2295 * Failure: Error code
2296 */
2297 LSTATUS WINAPI RegGetKeySecurity( HKEY hkey, SECURITY_INFORMATION SecurityInformation,
2298 PSECURITY_DESCRIPTOR pSecurityDescriptor,
2299 LPDWORD lpcbSecurityDescriptor )
2300 {
2301 TRACE("(%p,%d,%p,%d)\n",hkey,SecurityInformation,pSecurityDescriptor,
2302 *lpcbSecurityDescriptor);
2303
2304 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
2305
2306 return RtlNtStatusToDosError( NtQuerySecurityObject( hkey,
2307 SecurityInformation, pSecurityDescriptor,
2308 *lpcbSecurityDescriptor, lpcbSecurityDescriptor ) );
2309 }
2310
2311
2312 /******************************************************************************
2313 * RegFlushKey [ADVAPI32.@]
2314 *
2315 * Immediately write a registry key to registry.
2316 *
2317 * PARAMS
2318 * hkey [I] Handle of key to write
2319 *
2320 * RETURNS
2321 * Success: ERROR_SUCCESS
2322 * Failure: Error code
2323 */
2324 LSTATUS WINAPI RegFlushKey( HKEY hkey )
2325 {
2326 hkey = get_special_root_hkey( hkey );
2327 if (!hkey) return ERROR_INVALID_HANDLE;
2328
2329 return RtlNtStatusToDosError( NtFlushKey( hkey ) );
2330 }
2331
2332
2333 /******************************************************************************
2334 * RegConnectRegistryW [ADVAPI32.@]
2335 *
2336 * Establish a connection to a predefined registry key on another computer.
2337 *
2338 * PARAMS
2339 * lpMachineName [I] Address of name of remote computer
2340 * hHey [I] Predefined registry handle
2341 * phkResult [I] Address of buffer for remote registry handle
2342 *
2343 * RETURNS
2344 * Success: ERROR_SUCCESS
2345 * Failure: nonzero error code from Winerror.h
2346 */
2347 LSTATUS WINAPI RegConnectRegistryW( LPCWSTR lpMachineName, HKEY hKey,
2348 PHKEY phkResult )
2349 {
2350 LONG ret;
2351
2352 TRACE("(%s,%p,%p): stub\n",debugstr_w(lpMachineName),hKey,phkResult);
2353
2354 if (!lpMachineName || !*lpMachineName) {
2355 /* Use the local machine name */
2356 ret = RegOpenKeyW( hKey, NULL, phkResult );
2357 }
2358 else {
2359 WCHAR compName[MAX_COMPUTERNAME_LENGTH + 1];
2360 DWORD len = sizeof(compName) / sizeof(WCHAR);
2361
2362 /* MSDN says lpMachineName must start with \\ : not so */
2363 if( lpMachineName[0] == '\\' && lpMachineName[1] == '\\')
2364 lpMachineName += 2;
2365 if (GetComputerNameW(compName, &len))
2366 {
2367 if (!strcmpiW(lpMachineName, compName))
2368 ret = RegOpenKeyW(hKey, NULL, phkResult);
2369 else
2370 {
2371 FIXME("Connect to %s is not supported.\n",debugstr_w(lpMachineName));
2372 ret = ERROR_BAD_NETPATH;
2373 }
2374 }
2375 else
2376 ret = GetLastError();
2377 }
2378 return ret;
2379 }
2380
2381
2382 /******************************************************************************
2383 * RegConnectRegistryA [ADVAPI32.@]
2384 *
2385 * See RegConnectRegistryW.
2386 */
2387 LSTATUS WINAPI RegConnectRegistryA( LPCSTR machine, HKEY hkey, PHKEY reskey )
2388 {
2389 UNICODE_STRING machineW;
2390 LONG ret;
2391
2392 RtlCreateUnicodeStringFromAsciiz( &machineW, machine );
2393 ret = RegConnectRegistryW( machineW.Buffer, hkey, reskey );
2394 RtlFreeUnicodeString( &machineW );
2395 return ret;
2396 }
2397
2398
2399 /******************************************************************************
2400 * RegNotifyChangeKeyValue [ADVAPI32.@]
2401 *
2402 * Notify the caller about changes to the attributes or contents of a registry key.
2403 *
2404 * PARAMS
2405 * hkey [I] Handle of key to watch
2406 * fWatchSubTree [I] Flag for subkey notification
2407 * fdwNotifyFilter [I] Changes to be reported
2408 * hEvent [I] Handle of signaled event
2409 * fAsync [I] Flag for asynchronous reporting
2410 *
2411 * RETURNS
2412 * Success: ERROR_SUCCESS
2413 * Failure: nonzero error code from Winerror.h
2414 */
2415 LSTATUS WINAPI RegNotifyChangeKeyValue( HKEY hkey, BOOL fWatchSubTree,
2416 DWORD fdwNotifyFilter, HANDLE hEvent,
2417 BOOL fAsync )
2418 {
2419 NTSTATUS status;
2420 IO_STATUS_BLOCK iosb;
2421
2422 hkey = get_special_root_hkey( hkey );
2423 if (!hkey) return ERROR_INVALID_HANDLE;
2424
2425 TRACE("(%p,%i,%d,%p,%i)\n", hkey, fWatchSubTree, fdwNotifyFilter,
2426 hEvent, fAsync);
2427
2428 status = NtNotifyChangeKey( hkey, hEvent, NULL, NULL, &iosb,
2429 fdwNotifyFilter, fAsync, NULL, 0,
2430 fWatchSubTree);
2431
2432 if (status && status != STATUS_TIMEOUT)
2433 return RtlNtStatusToDosError( status );
2434
2435 return ERROR_SUCCESS;
2436 }
2437
2438 /******************************************************************************
2439 * RegOpenUserClassesRoot [ADVAPI32.@]
2440 *
2441 * Open the HKEY_CLASSES_ROOT key for a user.
2442 *
2443 * PARAMS
2444 * hToken [I] Handle of token representing the user
2445 * dwOptions [I] Reserved, must be 0
2446 * samDesired [I] Desired access rights
2447 * phkResult [O] Destination for the resulting key handle
2448 *
2449 * RETURNS
2450 * Success: ERROR_SUCCESS
2451 * Failure: nonzero error code from Winerror.h
2452 *
2453 * NOTES
2454 * On Windows 2000 and upwards the HKEY_CLASSES_ROOT key is a view of the
2455 * "HKEY_LOCAL_MACHINE\Software\Classes" and the
2456 * "HKEY_CURRENT_USER\Software\Classes" keys merged together.
2457 */
2458 LSTATUS WINAPI RegOpenUserClassesRoot(
2459 HANDLE hToken,
2460 DWORD dwOptions,
2461 REGSAM samDesired,
2462 PHKEY phkResult
2463 )
2464 {
2465 FIXME("(%p, 0x%x, 0x%x, %p) semi-stub\n", hToken, dwOptions, samDesired, phkResult);
2466
2467 *phkResult = HKEY_CLASSES_ROOT;
2468 return ERROR_SUCCESS;
2469 }
2470
2471 /******************************************************************************
2472 * load_string [Internal]
2473 *
2474 * This is basically a copy of user32/resource.c's LoadStringW. Necessary to
2475 * avoid importing user32, which is higher level than advapi32. Helper for
2476 * RegLoadMUIString.
2477 */
2478 static int load_string(HINSTANCE hModule, UINT resId, LPWSTR pwszBuffer, INT cMaxChars)
2479 {
2480 HGLOBAL hMemory;
2481 HRSRC hResource;
2482 WCHAR *pString;
2483 int idxString;
2484
2485 /* Negative values have to be inverted. */
2486 if (HIWORD(resId) == 0xffff)
2487 resId = (UINT)(-((INT)resId));
2488
2489 /* Load the resource into memory and get a pointer to it. */
2490 hResource = FindResourceW(hModule, MAKEINTRESOURCEW(LOWORD(resId >> 4) + 1), (LPWSTR)RT_STRING);
2491 if (!hResource) return 0;
2492 hMemory = LoadResource(hModule, hResource);
2493 if (!hMemory) return 0;
2494 pString = LockResource(hMemory);
2495
2496 /* Strings are length-prefixed. Lowest nibble of resId is an index. */
2497 idxString = resId & 0xf;
2498 while (idxString--) pString += *pString + 1;
2499
2500 /* If no buffer is given, return length of the string. */
2501 if (!pwszBuffer) return *pString;
2502
2503 /* Else copy over the string, respecting the buffer size. */
2504 cMaxChars = (*pString < cMaxChars) ? *pString : (cMaxChars - 1);
2505 if (cMaxChars >= 0) {
2506 memcpy(pwszBuffer, pString+1, cMaxChars * sizeof(WCHAR));
2507 pwszBuffer[cMaxChars] = '\0';
2508 }
2509
2510 return cMaxChars;
2511 }
2512
2513 /******************************************************************************
2514 * RegLoadMUIStringW [ADVAPI32.@]
2515 *
2516 * Load the localized version of a string resource from some PE, respective
2517 * id and path of which are given in the registry value in the format
2518 * @[path]\dllname,-resourceId
2519 *
2520 * PARAMS
2521 * hKey [I] Key, of which to load the string value from.
2522 * pszValue [I] The value to be loaded (Has to be of REG_EXPAND_SZ or REG_SZ type).
2523 * pszBuffer [O] Buffer to store the localized string in.
2524 * cbBuffer [I] Size of the destination buffer in bytes.
2525 * pcbData [O] Number of bytes written to pszBuffer (optional, may be NULL).
2526 * dwFlags [I] None supported yet.
2527 * pszBaseDir [I] Not supported yet.
2528 *
2529 * RETURNS
2530 * Success: ERROR_SUCCESS,
2531 * Failure: nonzero error code from winerror.h
2532 *
2533 * NOTES
2534 * This is an API of Windows Vista, which wasn't available at the time this code
2535 * was written. We have to check for the correct behaviour once it's available.
2536 */
2537 LSTATUS WINAPI RegLoadMUIStringW(HKEY hKey, LPCWSTR pwszValue, LPWSTR pwszBuffer, DWORD cbBuffer,
2538 LPDWORD pcbData, DWORD dwFlags, LPCWSTR pwszBaseDir)
2539 {
2540 DWORD dwValueType, cbData;
2541 LPWSTR pwszTempBuffer = NULL, pwszExpandedBuffer = NULL;
2542 LONG result;
2543
2544 TRACE("(hKey = %p, pwszValue = %s, pwszBuffer = %p, cbBuffer = %d, pcbData = %p, "
2545 "dwFlags = %d, pwszBaseDir = %s) stub\n", hKey, debugstr_w(pwszValue), pwszBuffer,
2546 cbBuffer, pcbData, dwFlags, debugstr_w(pwszBaseDir));
2547
2548 /* Parameter sanity checks. */
2549 if (!hKey || !pwszBuffer)
2550 return ERROR_INVALID_PARAMETER;
2551
2552 if (pwszBaseDir && *pwszBaseDir) {
2553 FIXME("BaseDir parameter not yet supported!\n");
2554 return ERROR_INVALID_PARAMETER;
2555 }
2556
2557 /* Check for value existence and correctness of it's type, allocate a buffer and load it. */
2558 result = RegQueryValueExW(hKey, pwszValue, NULL, &dwValueType, NULL, &cbData);
2559 if (result != ERROR_SUCCESS) goto cleanup;
2560 if (!(dwValueType == REG_SZ || dwValueType == REG_EXPAND_SZ) || !cbData) {
2561 result = ERROR_FILE_NOT_FOUND;
2562 goto cleanup;
2563 }
2564 pwszTempBuffer = HeapAlloc(GetProcessHeap(), 0, cbData);
2565 if (!pwszTempBuffer) {
2566 result = ERROR_NOT_ENOUGH_MEMORY;
2567 goto cleanup;
2568 }
2569 result = RegQueryValueExW(hKey, pwszValue, NULL, &dwValueType, (LPBYTE)pwszTempBuffer, &cbData);
2570 if (result != ERROR_SUCCESS) goto cleanup;
2571
2572 /* Expand environment variables, if appropriate, or copy the original string over. */
2573 if (dwValueType == REG_EXPAND_SZ) {
2574 cbData = ExpandEnvironmentStringsW(pwszTempBuffer, NULL, 0) * sizeof(WCHAR);
2575 if (!cbData) goto cleanup;
2576 pwszExpandedBuffer = HeapAlloc(GetProcessHeap(), 0, cbData);
2577 if (!pwszExpandedBuffer) {
2578 result = ERROR_NOT_ENOUGH_MEMORY;
2579 goto cleanup;
2580 }
2581 ExpandEnvironmentStringsW(pwszTempBuffer, pwszExpandedBuffer, cbData);
2582 } else {
2583 pwszExpandedBuffer = HeapAlloc(GetProcessHeap(), 0, cbData);
2584 memcpy(pwszExpandedBuffer, pwszTempBuffer, cbData);
2585 }
2586
2587 /* If the value references a resource based string, parse the value and load the string.
2588 * Else just copy over the original value. */
2589 result = ERROR_SUCCESS;
2590 if (*pwszExpandedBuffer != '@') { /* '@' is the prefix for resource based string entries. */
2591 lstrcpynW(pwszBuffer, pwszExpandedBuffer, cbBuffer / sizeof(WCHAR));
2592 } else {
2593 WCHAR *pComma = strrchrW(pwszExpandedBuffer, ',');
2594 UINT uiStringId;
2595 HMODULE hModule;
2596
2597 /* Format of the expanded value is 'path_to_dll,-resId' */
2598 if (!pComma || pComma[1] != '-') {
2599 result = ERROR_BADKEY;
2600 goto cleanup;
2601 }
2602
2603 uiStringId = atoiW(pComma+2);
2604 *pComma = '\0';
2605
2606 hModule = LoadLibraryW(pwszExpandedBuffer + 1);
2607 if (!hModule || !load_string(hModule, uiStringId, pwszBuffer, cbBuffer/sizeof(WCHAR)))
2608 result = ERROR_BADKEY;
2609 FreeLibrary(hModule);
2610 }
2611
2612 cleanup:
2613 HeapFree(GetProcessHeap(), 0, pwszTempBuffer);
2614 HeapFree(GetProcessHeap(), 0, pwszExpandedBuffer);
2615 return result;
2616 }
2617
2618 /******************************************************************************
2619 * RegLoadMUIStringA [ADVAPI32.@]
2620 *
2621 * See RegLoadMUIStringW
2622 */
2623 LSTATUS WINAPI RegLoadMUIStringA(HKEY hKey, LPCSTR pszValue, LPSTR pszBuffer, DWORD cbBuffer,
2624 LPDWORD pcbData, DWORD dwFlags, LPCSTR pszBaseDir)
2625 {
2626 UNICODE_STRING valueW, baseDirW;
2627 WCHAR *pwszBuffer;
2628 DWORD cbData = cbBuffer * sizeof(WCHAR);
2629 LONG result;
2630
2631 valueW.Buffer = baseDirW.Buffer = pwszBuffer = NULL;
2632 if (!RtlCreateUnicodeStringFromAsciiz(&valueW, pszValue) ||
2633 !RtlCreateUnicodeStringFromAsciiz(&baseDirW, pszBaseDir) ||
2634 !(pwszBuffer = HeapAlloc(GetProcessHeap(), 0, cbData)))
2635 {
2636 result = ERROR_NOT_ENOUGH_MEMORY;
2637 goto cleanup;
2638 }
2639
2640 result = RegLoadMUIStringW(hKey, valueW.Buffer, pwszBuffer, cbData, NULL, dwFlags,
2641 baseDirW.Buffer);
2642
2643 if (result == ERROR_SUCCESS) {
2644 cbData = WideCharToMultiByte(CP_ACP, 0, pwszBuffer, -1, pszBuffer, cbBuffer, NULL, NULL);
2645 if (pcbData)
2646 *pcbData = cbData;
2647 }
2648
2649 cleanup:
2650 HeapFree(GetProcessHeap(), 0, pwszBuffer);
2651 RtlFreeUnicodeString(&baseDirW);
2652 RtlFreeUnicodeString(&valueW);
2653
2654 return result;
2655 }
2656
2657 /******************************************************************************
2658 * RegDisablePredefinedCache [ADVAPI32.@]
2659 *
2660 * Disables the caching of the HKEY_CLASSES_ROOT key for the process.
2661 *
2662 * PARAMS
2663 * None.
2664 *
2665 * RETURNS
2666 * Success: ERROR_SUCCESS
2667 * Failure: nonzero error code from Winerror.h
2668 *
2669 * NOTES
2670 * This is useful for services that use impersonation.
2671 */
2672 LSTATUS WINAPI RegDisablePredefinedCache(void)
2673 {
2674 HKEY hkey_current_user;
2675 int idx = (UINT_PTR)HKEY_CURRENT_USER - (UINT_PTR)HKEY_SPECIAL_ROOT_FIRST;
2676
2677 /* prevent caching of future requests */
2678 hkcu_cache_disabled = TRUE;
2679
2680 hkey_current_user = InterlockedExchangePointer( (void **)&special_root_keys[idx], NULL );
2681
2682 if (hkey_current_user)
2683 NtClose( hkey_current_user );
2684
2685 return ERROR_SUCCESS;
2686 }
2687
2688 /******************************************************************************
2689 * RegDeleteTreeW [ADVAPI32.@]
2690 *
2691 */
2692 LSTATUS WINAPI RegDeleteTreeW(HKEY hKey, LPCWSTR lpszSubKey)
2693 {
2694 LONG ret;
2695 DWORD dwMaxSubkeyLen, dwMaxValueLen;
2696 DWORD dwMaxLen, dwSize;
2697 WCHAR szNameBuf[MAX_PATH], *lpszName = szNameBuf;
2698 HKEY hSubKey = hKey;
2699
2700 TRACE("(hkey=%p,%p %s)\n", hKey, lpszSubKey, debugstr_w(lpszSubKey));
2701
2702 if(lpszSubKey)
2703 {
2704 ret = RegOpenKeyExW(hKey, lpszSubKey, 0, KEY_READ, &hSubKey);
2705 if (ret) return ret;
2706 }
2707
2708 /* Get highest length for keys, values */
2709 ret = RegQueryInfoKeyW(hSubKey, NULL, NULL, NULL, NULL,
2710 &dwMaxSubkeyLen, NULL, NULL, &dwMaxValueLen, NULL, NULL, NULL);
2711 if (ret) goto cleanup;
2712
2713 dwMaxSubkeyLen++;
2714 dwMaxValueLen++;
2715 dwMaxLen = max(dwMaxSubkeyLen, dwMaxValueLen);
2716 if (dwMaxLen > sizeof(szNameBuf)/sizeof(WCHAR))
2717 {
2718 /* Name too big: alloc a buffer for it */
2719 if (!(lpszName = HeapAlloc( GetProcessHeap(), 0, dwMaxLen*sizeof(WCHAR))))
2720 {
2721 ret = ERROR_NOT_ENOUGH_MEMORY;
2722 goto cleanup;
2723 }
2724 }
2725
2726
2727 /* Recursively delete all the subkeys */
2728 while (TRUE)
2729 {
2730 dwSize = dwMaxLen;
2731 if (RegEnumKeyExW(hSubKey, 0, lpszName, &dwSize, NULL,
2732 NULL, NULL, NULL)) break;
2733
2734 ret = RegDeleteTreeW(hSubKey, lpszName);
2735 if (ret) goto cleanup;
2736 }
2737
2738 if (lpszSubKey)
2739 ret = RegDeleteKeyW(hKey, lpszSubKey);
2740 else
2741 while (TRUE)
2742 {
2743 dwSize = dwMaxLen;
2744 if (RegEnumValueW(hKey, 0, lpszName, &dwSize,
2745 NULL, NULL, NULL, NULL)) break;
2746
2747 ret = RegDeleteValueW(hKey, lpszName);
2748 if (ret) goto cleanup;
2749 }
2750
2751 cleanup:
2752 /* Free buffer if allocated */
2753 if (lpszName != szNameBuf)
2754 HeapFree( GetProcessHeap(), 0, lpszName);
2755 if(lpszSubKey)
2756 RegCloseKey(hSubKey);
2757 return ret;
2758 }
2759
2760 /******************************************************************************
2761 * RegDeleteTreeA [ADVAPI32.@]
2762 *
2763 */
2764 LSTATUS WINAPI RegDeleteTreeA(HKEY hKey, LPCSTR lpszSubKey)
2765 {
2766 LONG ret;
2767 UNICODE_STRING lpszSubKeyW;
2768
2769 if (lpszSubKey) RtlCreateUnicodeStringFromAsciiz( &lpszSubKeyW, lpszSubKey);
2770 else lpszSubKeyW.Buffer = NULL;
2771 ret = RegDeleteTreeW( hKey, lpszSubKeyW.Buffer);
2772 RtlFreeUnicodeString( &lpszSubKeyW );
2773 return ret;
2774 }
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