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Release 1.1.37.
[wine/gsoc-2012-control.git] / dlls / advapi32 / registry.c
blob28eabe3c562416141e053f4dca0cfbf217feba77
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 RtlInitUnicodeString( &nameW, name );
194 RtlInitUnicodeString( &classW, class );
195
196 return RtlNtStatusToDosError( NtCreateKey( (PHANDLE)retkey, access, &attr, 0,
197 &classW, options, dispos ) );
198 }
199
200
201 /******************************************************************************
202 * RegCreateKeyExA [ADVAPI32.@]
203 *
204 * Open a registry key, creating it if it doesn't exist.
205 *
206 * PARAMS
207 * hkey [I] Handle of the parent registry key
208 * name [I] Name of the new key to open or create
209 * reserved [I] Reserved, pass 0
210 * class [I] The object type of the new key
211 * options [I] Flags controlling the key creation (REG_OPTION_* flags from "winnt.h")
212 * access [I] Access level desired
213 * sa [I] Security attributes for the key
214 * retkey [O] Destination for the resulting handle
215 * dispos [O] Receives REG_CREATED_NEW_KEY or REG_OPENED_EXISTING_KEY
216 *
217 * RETURNS
218 * Success: ERROR_SUCCESS.
219 * Failure: A standard Win32 error code. retkey remains untouched.
220 *
221 * FIXME
222 * MAXIMUM_ALLOWED in access mask not supported by server
223 */
224 LSTATUS WINAPI RegCreateKeyExA( HKEY hkey, LPCSTR name, DWORD reserved, LPSTR class,
225 DWORD options, REGSAM access, SECURITY_ATTRIBUTES *sa,
226 PHKEY retkey, LPDWORD dispos )
227 {
228 OBJECT_ATTRIBUTES attr;
229 UNICODE_STRING classW;
230 ANSI_STRING nameA, classA;
231 NTSTATUS status;
232
233 if (reserved) return ERROR_INVALID_PARAMETER;
234 if (!is_version_nt())
235 {
236 access = MAXIMUM_ALLOWED; /* Win95 ignores the access mask */
237 if (name && *name == '\\') name++; /* win9x,ME ignores one (and only one) beginning backslash */
238 }
239 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
240
241 attr.Length = sizeof(attr);
242 attr.RootDirectory = hkey;
243 attr.ObjectName = &NtCurrentTeb()->StaticUnicodeString;
244 attr.Attributes = 0;
245 attr.SecurityDescriptor = NULL;
246 attr.SecurityQualityOfService = NULL;
247 RtlInitAnsiString( &nameA, name );
248 RtlInitAnsiString( &classA, class );
249
250 if (!(status = RtlAnsiStringToUnicodeString( &NtCurrentTeb()->StaticUnicodeString,
251 &nameA, FALSE )))
252 {
253 if (!(status = RtlAnsiStringToUnicodeString( &classW, &classA, TRUE )))
254 {
255 status = NtCreateKey( (PHANDLE)retkey, access, &attr, 0, &classW, options, dispos );
256 RtlFreeUnicodeString( &classW );
257 }
258 }
259 return RtlNtStatusToDosError( status );
260 }
261
262
263 /******************************************************************************
264 * RegCreateKeyW [ADVAPI32.@]
265 *
266 * Creates the specified reg key.
267 *
268 * PARAMS
269 * hKey [I] Handle to an open key.
270 * lpSubKey [I] Name of a key that will be opened or created.
271 * phkResult [O] Receives a handle to the opened or created key.
272 *
273 * RETURNS
274 * Success: ERROR_SUCCESS
275 * Failure: nonzero error code defined in Winerror.h
276 */
277 LSTATUS WINAPI RegCreateKeyW( HKEY hkey, LPCWSTR lpSubKey, PHKEY phkResult )
278 {
279 /* FIXME: previous implementation converted ERROR_INVALID_HANDLE to ERROR_BADKEY, */
280 /* but at least my version of NT (4.0 SP5) doesn't do this. -- AJ */
281 return RegCreateKeyExW( hkey, lpSubKey, 0, NULL, REG_OPTION_NON_VOLATILE,
282 MAXIMUM_ALLOWED, NULL, phkResult, NULL );
283 }
284
285
286 /******************************************************************************
287 * RegCreateKeyA [ADVAPI32.@]
288 *
289 * See RegCreateKeyW.
290 */
291 LSTATUS WINAPI RegCreateKeyA( HKEY hkey, LPCSTR lpSubKey, PHKEY phkResult )
292 {
293 return RegCreateKeyExA( hkey, lpSubKey, 0, NULL, REG_OPTION_NON_VOLATILE,
294 MAXIMUM_ALLOWED, NULL, phkResult, NULL );
295 }
296
297
298
299 /******************************************************************************
300 * RegOpenKeyExW [ADVAPI32.@]
301 *
302 * See RegOpenKeyExA.
303 */
304 LSTATUS WINAPI RegOpenKeyExW( HKEY hkey, LPCWSTR name, DWORD reserved, REGSAM access, PHKEY retkey )
305 {
306 OBJECT_ATTRIBUTES attr;
307 UNICODE_STRING nameW;
308
309 /* NT+ allows beginning backslash for HKEY_CLASSES_ROOT */
310 if (hkey == HKEY_CLASSES_ROOT && name && *name == '\\') name++;
311
312 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
313
314 attr.Length = sizeof(attr);
315 attr.RootDirectory = hkey;
316 attr.ObjectName = &nameW;
317 attr.Attributes = 0;
318 attr.SecurityDescriptor = NULL;
319 attr.SecurityQualityOfService = NULL;
320 RtlInitUnicodeString( &nameW, name );
321 return RtlNtStatusToDosError( NtOpenKey( (PHANDLE)retkey, access, &attr ) );
322 }
323
324
325 /******************************************************************************
326 * RegOpenKeyExA [ADVAPI32.@]
327 *
328 * Open a registry key.
329 *
330 * PARAMS
331 * hkey [I] Handle of open key
332 * name [I] Name of subkey to open
333 * reserved [I] Reserved - must be zero
334 * access [I] Security access mask
335 * retkey [O] Handle to open key
336 *
337 * RETURNS
338 * Success: ERROR_SUCCESS
339 * Failure: A standard Win32 error code. retkey is set to 0.
340 *
341 * NOTES
342 * Unlike RegCreateKeyExA(), this function will not create the key if it
343 * does not exist.
344 */
345 LSTATUS WINAPI RegOpenKeyExA( HKEY hkey, LPCSTR name, DWORD reserved, REGSAM access, PHKEY retkey )
346 {
347 OBJECT_ATTRIBUTES attr;
348 STRING nameA;
349 NTSTATUS status;
350
351 if (!is_version_nt()) access = MAXIMUM_ALLOWED; /* Win95 ignores the access mask */
352 else
353 {
354 /* NT+ allows beginning backslash for HKEY_CLASSES_ROOT */
355 if (hkey == HKEY_CLASSES_ROOT && name && *name == '\\') name++;
356 }
357
358 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
359
360 attr.Length = sizeof(attr);
361 attr.RootDirectory = hkey;
362 attr.ObjectName = &NtCurrentTeb()->StaticUnicodeString;
363 attr.Attributes = 0;
364 attr.SecurityDescriptor = NULL;
365 attr.SecurityQualityOfService = NULL;
366
367 RtlInitAnsiString( &nameA, name );
368 if (!(status = RtlAnsiStringToUnicodeString( &NtCurrentTeb()->StaticUnicodeString,
369 &nameA, FALSE )))
370 {
371 status = NtOpenKey( (PHANDLE)retkey, access, &attr );
372 }
373 return RtlNtStatusToDosError( status );
374 }
375
376
377 /******************************************************************************
378 * RegOpenKeyW [ADVAPI32.@]
379 *
380 * See RegOpenKeyA.
381 */
382 LSTATUS WINAPI RegOpenKeyW( HKEY hkey, LPCWSTR name, PHKEY retkey )
383 {
384 if (!retkey)
385 return ERROR_INVALID_PARAMETER;
386
387 if (!name || !*name)
388 {
389 *retkey = hkey;
390 return ERROR_SUCCESS;
391 }
392 return RegOpenKeyExW( hkey, name, 0, MAXIMUM_ALLOWED, retkey );
393 }
394
395
396 /******************************************************************************
397 * RegOpenKeyA [ADVAPI32.@]
398 *
399 * Open a registry key.
400 *
401 * PARAMS
402 * hkey [I] Handle of parent key to open the new key under
403 * name [I] Name of the key under hkey to open
404 * retkey [O] Destination for the resulting Handle
405 *
406 * RETURNS
407 * Success: ERROR_SUCCESS
408 * Failure: A standard Win32 error code. When retkey is valid, *retkey is set to 0.
409 */
410 LSTATUS WINAPI RegOpenKeyA( HKEY hkey, LPCSTR name, PHKEY retkey )
411 {
412 if (!retkey)
413 return ERROR_INVALID_PARAMETER;
414
415 if (!name || !*name)
416 {
417 *retkey = hkey;
418 return ERROR_SUCCESS;
419 }
420 return RegOpenKeyExA( hkey, name, 0, MAXIMUM_ALLOWED, retkey );
421 }
422
423
424 /******************************************************************************
425 * RegOpenCurrentUser [ADVAPI32.@]
426 *
427 * Get a handle to the HKEY_CURRENT_USER key for the user
428 * the current thread is impersonating.
429 *
430 * PARAMS
431 * access [I] Desired access rights to the key
432 * retkey [O] Handle to the opened key
433 *
434 * RETURNS
435 * Success: ERROR_SUCCESS
436 * Failure: nonzero error code from Winerror.h
437 *
438 * FIXME
439 * This function is supposed to retrieve a handle to the
440 * HKEY_CURRENT_USER for the user the current thread is impersonating.
441 * Since Wine does not currently allow threads to impersonate other users,
442 * this stub should work fine.
443 */
444 LSTATUS WINAPI RegOpenCurrentUser( REGSAM access, PHKEY retkey )
445 {
446 return RegOpenKeyExA( HKEY_CURRENT_USER, "", 0, access, retkey );
447 }
448
449
450
451 /******************************************************************************
452 * RegEnumKeyExW [ADVAPI32.@]
453 *
454 * Enumerate subkeys of the specified open registry key.
455 *
456 * PARAMS
457 * hkey [I] Handle to key to enumerate
458 * index [I] Index of subkey to enumerate
459 * name [O] Buffer for subkey name
460 * name_len [O] Size of subkey buffer
461 * reserved [I] Reserved
462 * class [O] Buffer for class string
463 * class_len [O] Size of class buffer
464 * ft [O] Time key last written to
465 *
466 * RETURNS
467 * Success: ERROR_SUCCESS
468 * Failure: System error code. If there are no more subkeys available, the
469 * function returns ERROR_NO_MORE_ITEMS.
470 */
471 LSTATUS WINAPI RegEnumKeyExW( HKEY hkey, DWORD index, LPWSTR name, LPDWORD name_len,
472 LPDWORD reserved, LPWSTR class, LPDWORD class_len, FILETIME *ft )
473 {
474 NTSTATUS status;
475 char buffer[256], *buf_ptr = buffer;
476 KEY_NODE_INFORMATION *info = (KEY_NODE_INFORMATION *)buffer;
477 DWORD total_size;
478
479 TRACE( "(%p,%d,%p,%p(%u),%p,%p,%p,%p)\n", hkey, index, name, name_len,
480 name_len ? *name_len : 0, reserved, class, class_len, ft );
481
482 if (reserved) return ERROR_INVALID_PARAMETER;
483 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
484
485 status = NtEnumerateKey( hkey, index, KeyNodeInformation,
486 buffer, sizeof(buffer), &total_size );
487
488 while (status == STATUS_BUFFER_OVERFLOW)
489 {
490 /* retry with a dynamically allocated buffer */
491 if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
492 if (!(buf_ptr = HeapAlloc( GetProcessHeap(), 0, total_size )))
493 return ERROR_NOT_ENOUGH_MEMORY;
494 info = (KEY_NODE_INFORMATION *)buf_ptr;
495 status = NtEnumerateKey( hkey, index, KeyNodeInformation,
496 buf_ptr, total_size, &total_size );
497 }
498
499 if (!status)
500 {
501 DWORD len = info->NameLength / sizeof(WCHAR);
502 DWORD cls_len = info->ClassLength / sizeof(WCHAR);
503
504 if (ft) *ft = *(FILETIME *)&info->LastWriteTime;
505
506 if (len >= *name_len || (class && class_len && (cls_len >= *class_len)))
507 status = STATUS_BUFFER_OVERFLOW;
508 else
509 {
510 *name_len = len;
511 memcpy( name, info->Name, info->NameLength );
512 name[len] = 0;
513 if (class_len)
514 {
515 *class_len = cls_len;
516 if (class)
517 {
518 memcpy( class, buf_ptr + info->ClassOffset, info->ClassLength );
519 class[cls_len] = 0;
520 }
521 }
522 }
523 }
524
525 if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
526 return RtlNtStatusToDosError( status );
527 }
528
529
530 /******************************************************************************
531 * RegEnumKeyExA [ADVAPI32.@]
532 *
533 * See RegEnumKeyExW.
534 */
535 LSTATUS WINAPI RegEnumKeyExA( HKEY hkey, DWORD index, LPSTR name, LPDWORD name_len,
536 LPDWORD reserved, LPSTR class, LPDWORD class_len, FILETIME *ft )
537 {
538 NTSTATUS status;
539 char buffer[256], *buf_ptr = buffer;
540 KEY_NODE_INFORMATION *info = (KEY_NODE_INFORMATION *)buffer;
541 DWORD total_size;
542
543 TRACE( "(%p,%d,%p,%p(%u),%p,%p,%p,%p)\n", hkey, index, name, name_len,
544 name_len ? *name_len : 0, reserved, class, class_len, ft );
545
546 if (reserved) return ERROR_INVALID_PARAMETER;
547 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
548
549 status = NtEnumerateKey( hkey, index, KeyNodeInformation,
550 buffer, sizeof(buffer), &total_size );
551
552 while (status == STATUS_BUFFER_OVERFLOW)
553 {
554 /* retry with a dynamically allocated buffer */
555 if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
556 if (!(buf_ptr = HeapAlloc( GetProcessHeap(), 0, total_size )))
557 return ERROR_NOT_ENOUGH_MEMORY;
558 info = (KEY_NODE_INFORMATION *)buf_ptr;
559 status = NtEnumerateKey( hkey, index, KeyNodeInformation,
560 buf_ptr, total_size, &total_size );
561 }
562
563 if (!status)
564 {
565 DWORD len, cls_len;
566
567 RtlUnicodeToMultiByteSize( &len, info->Name, info->NameLength );
568 RtlUnicodeToMultiByteSize( &cls_len, (WCHAR *)(buf_ptr + info->ClassOffset),
569 info->ClassLength );
570 if (ft) *ft = *(FILETIME *)&info->LastWriteTime;
571
572 if (len >= *name_len || (class && class_len && (cls_len >= *class_len)))
573 status = STATUS_BUFFER_OVERFLOW;
574 else
575 {
576 *name_len = len;
577 RtlUnicodeToMultiByteN( name, len, NULL, info->Name, info->NameLength );
578 name[len] = 0;
579 if (class_len)
580 {
581 *class_len = cls_len;
582 if (class)
583 {
584 RtlUnicodeToMultiByteN( class, cls_len, NULL,
585 (WCHAR *)(buf_ptr + info->ClassOffset),
586 info->ClassLength );
587 class[cls_len] = 0;
588 }
589 }
590 }
591 }
592
593 if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
594 return RtlNtStatusToDosError( status );
595 }
596
597
598 /******************************************************************************
599 * RegEnumKeyW [ADVAPI32.@]
600 *
601 * Enumerates subkeys of the specified open reg key.
602 *
603 * PARAMS
604 * hKey [I] Handle to an open key.
605 * dwIndex [I] Index of the subkey of hKey to retrieve.
606 * lpName [O] Name of the subkey.
607 * cchName [I] Size of lpName in TCHARS.
608 *
609 * RETURNS
610 * Success: ERROR_SUCCESS
611 * Failure: system error code. If there are no more subkeys available, the
612 * function returns ERROR_NO_MORE_ITEMS.
613 */
614 LSTATUS WINAPI RegEnumKeyW( HKEY hkey, DWORD index, LPWSTR name, DWORD name_len )
615 {
616 return RegEnumKeyExW( hkey, index, name, &name_len, NULL, NULL, NULL, NULL );
617 }
618
619
620 /******************************************************************************
621 * RegEnumKeyA [ADVAPI32.@]
622 *
623 * See RegEnumKeyW.
624 */
625 LSTATUS WINAPI RegEnumKeyA( HKEY hkey, DWORD index, LPSTR name, DWORD name_len )
626 {
627 return RegEnumKeyExA( hkey, index, name, &name_len, NULL, NULL, NULL, NULL );
628 }
629
630
631 /******************************************************************************
632 * RegQueryInfoKeyW [ADVAPI32.@]
633 *
634 * Retrieves information about the specified registry key.
635 *
636 * PARAMS
637 * hkey [I] Handle to key to query
638 * class [O] Buffer for class string
639 * class_len [O] Size of class string buffer
640 * reserved [I] Reserved
641 * subkeys [O] Buffer for number of subkeys
642 * max_subkey [O] Buffer for longest subkey name length
643 * max_class [O] Buffer for longest class string length
644 * values [O] Buffer for number of value entries
645 * max_value [O] Buffer for longest value name length
646 * max_data [O] Buffer for longest value data length
647 * security [O] Buffer for security descriptor length
648 * modif [O] Modification time
649 *
650 * RETURNS
651 * Success: ERROR_SUCCESS
652 * Failure: system error code.
653 *
654 * NOTES
655 * - win95 allows class to be valid and class_len to be NULL
656 * - winnt returns ERROR_INVALID_PARAMETER if class is valid and class_len is NULL
657 * - both allow class to be NULL and class_len to be NULL
658 * (it's hard to test validity, so test !NULL instead)
659 */
660 LSTATUS WINAPI RegQueryInfoKeyW( HKEY hkey, LPWSTR class, LPDWORD class_len, LPDWORD reserved,
661 LPDWORD subkeys, LPDWORD max_subkey, LPDWORD max_class,
662 LPDWORD values, LPDWORD max_value, LPDWORD max_data,
663 LPDWORD security, FILETIME *modif )
664 {
665 NTSTATUS status;
666 char buffer[256], *buf_ptr = buffer;
667 KEY_FULL_INFORMATION *info = (KEY_FULL_INFORMATION *)buffer;
668 DWORD total_size;
669
670 TRACE( "(%p,%p,%d,%p,%p,%p,%p,%p,%p,%p,%p)\n", hkey, class, class_len ? *class_len : 0,
671 reserved, subkeys, max_subkey, values, max_value, max_data, security, modif );
672
673 if (class && !class_len && is_version_nt()) return ERROR_INVALID_PARAMETER;
674 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
675
676 status = NtQueryKey( hkey, KeyFullInformation, buffer, sizeof(buffer), &total_size );
677 if (status && status != STATUS_BUFFER_OVERFLOW) goto done;
678
679 if (class)
680 {
681 /* retry with a dynamically allocated buffer */
682 while (status == STATUS_BUFFER_OVERFLOW)
683 {
684 if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
685 if (!(buf_ptr = HeapAlloc( GetProcessHeap(), 0, total_size )))
686 return ERROR_NOT_ENOUGH_MEMORY;
687 info = (KEY_FULL_INFORMATION *)buf_ptr;
688 status = NtQueryKey( hkey, KeyFullInformation, buf_ptr, total_size, &total_size );
689 }
690
691 if (status) goto done;
692
693 if (class_len && (info->ClassLength/sizeof(WCHAR) + 1 > *class_len))
694 {
695 status = STATUS_BUFFER_OVERFLOW;
696 }
697 else
698 {
699 memcpy( class, buf_ptr + info->ClassOffset, info->ClassLength );
700 class[info->ClassLength/sizeof(WCHAR)] = 0;
701 }
702 }
703 else status = STATUS_SUCCESS;
704
705 if (class_len) *class_len = info->ClassLength / sizeof(WCHAR);
706 if (subkeys) *subkeys = info->SubKeys;
707 if (max_subkey) *max_subkey = info->MaxNameLen;
708 if (max_class) *max_class = info->MaxClassLen;
709 if (values) *values = info->Values;
710 if (max_value) *max_value = info->MaxValueNameLen;
711 if (max_data) *max_data = info->MaxValueDataLen;
712 if (modif) *modif = *(FILETIME *)&info->LastWriteTime;
713
714 done:
715 if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
716 return RtlNtStatusToDosError( status );
717 }
718
719
720 /******************************************************************************
721 * RegQueryMultipleValuesA [ADVAPI32.@]
722 *
723 * Retrieves the type and data for a list of value names associated with a key.
724 *
725 * PARAMS
726 * hKey [I] Handle to an open key.
727 * val_list [O] Array of VALENT structures that describes the entries.
728 * num_vals [I] Number of elements in val_list.
729 * lpValueBuf [O] Pointer to a buffer that receives the data for each value.
730 * ldwTotsize [I/O] Size of lpValueBuf.
731 *
732 * RETURNS
733 * Success: ERROR_SUCCESS. ldwTotsize contains num bytes copied.
734 * Failure: nonzero error code from Winerror.h ldwTotsize contains num needed
735 * bytes.
736 */
737 LSTATUS WINAPI RegQueryMultipleValuesA( HKEY hkey, PVALENTA val_list, DWORD num_vals,
738 LPSTR lpValueBuf, LPDWORD ldwTotsize )
739 {
740 unsigned int i;
741 DWORD maxBytes = *ldwTotsize;
742 HRESULT status;
743 LPSTR bufptr = lpValueBuf;
744 *ldwTotsize = 0;
745
746 TRACE("(%p,%p,%d,%p,%p=%d)\n", hkey, val_list, num_vals, lpValueBuf, ldwTotsize, *ldwTotsize);
747
748 for(i=0; i < num_vals; ++i)
749 {
750
751 val_list[i].ve_valuelen=0;
752 status = RegQueryValueExA(hkey, val_list[i].ve_valuename, NULL, NULL, NULL, &val_list[i].ve_valuelen);
753 if(status != ERROR_SUCCESS)
754 {
755 return status;
756 }
757
758 if(lpValueBuf != NULL && *ldwTotsize + val_list[i].ve_valuelen <= maxBytes)
759 {
760 status = RegQueryValueExA(hkey, val_list[i].ve_valuename, NULL, &val_list[i].ve_type,
761 (LPBYTE)bufptr, &val_list[i].ve_valuelen);
762 if(status != ERROR_SUCCESS)
763 {
764 return status;
765 }
766
767 val_list[i].ve_valueptr = (DWORD_PTR)bufptr;
768
769 bufptr += val_list[i].ve_valuelen;
770 }
771
772 *ldwTotsize += val_list[i].ve_valuelen;
773 }
774 return lpValueBuf != NULL && *ldwTotsize <= maxBytes ? ERROR_SUCCESS : ERROR_MORE_DATA;
775 }
776
777
778 /******************************************************************************
779 * RegQueryMultipleValuesW [ADVAPI32.@]
780 *
781 * See RegQueryMultipleValuesA.
782 */
783 LSTATUS WINAPI RegQueryMultipleValuesW( HKEY hkey, PVALENTW val_list, DWORD num_vals,
784 LPWSTR lpValueBuf, LPDWORD ldwTotsize )
785 {
786 unsigned int i;
787 DWORD maxBytes = *ldwTotsize;
788 HRESULT status;
789 LPSTR bufptr = (LPSTR)lpValueBuf;
790 *ldwTotsize = 0;
791
792 TRACE("(%p,%p,%d,%p,%p=%d)\n", hkey, val_list, num_vals, lpValueBuf, ldwTotsize, *ldwTotsize);
793
794 for(i=0; i < num_vals; ++i)
795 {
796 val_list[i].ve_valuelen=0;
797 status = RegQueryValueExW(hkey, val_list[i].ve_valuename, NULL, NULL, NULL, &val_list[i].ve_valuelen);
798 if(status != ERROR_SUCCESS)
799 {
800 return status;
801 }
802
803 if(lpValueBuf != NULL && *ldwTotsize + val_list[i].ve_valuelen <= maxBytes)
804 {
805 status = RegQueryValueExW(hkey, val_list[i].ve_valuename, NULL, &val_list[i].ve_type,
806 (LPBYTE)bufptr, &val_list[i].ve_valuelen);
807 if(status != ERROR_SUCCESS)
808 {
809 return status;
810 }
811
812 val_list[i].ve_valueptr = (DWORD_PTR)bufptr;
813
814 bufptr += val_list[i].ve_valuelen;
815 }
816
817 *ldwTotsize += val_list[i].ve_valuelen;
818 }
819 return lpValueBuf != NULL && *ldwTotsize <= maxBytes ? ERROR_SUCCESS : ERROR_MORE_DATA;
820 }
821
822 /******************************************************************************
823 * RegQueryInfoKeyA [ADVAPI32.@]
824 *
825 * Retrieves information about a registry key.
826 *
827 * PARAMS
828 * hKey [I] Handle to an open key.
829 * lpClass [O] Class string of the key.
830 * lpcClass [I/O] size of lpClass.
831 * lpReserved [I] Reserved; must be NULL.
832 * lpcSubKeys [O] Number of subkeys contained by the key.
833 * lpcMaxSubKeyLen [O] Size of the key's subkey with the longest name.
834 * lpcMaxClassLen [O] Size of the longest string specifying a subkey
835 * class in TCHARS.
836 * lpcValues [O] Number of values associated with the key.
837 * lpcMaxValueNameLen [O] Size of the key's longest value name in TCHARS.
838 * lpcMaxValueLen [O] Longest data component among the key's values
839 * lpcbSecurityDescriptor [O] Size of the key's security descriptor.
840 * lpftLastWriteTime [O] FILETIME structure that is the last write time.
841 *
842 * RETURNS
843 * Success: ERROR_SUCCESS
844 * Failure: nonzero error code from Winerror.h
845 */
846 LSTATUS WINAPI RegQueryInfoKeyA( HKEY hkey, LPSTR class, LPDWORD class_len, LPDWORD reserved,
847 LPDWORD subkeys, LPDWORD max_subkey, LPDWORD max_class,
848 LPDWORD values, LPDWORD max_value, LPDWORD max_data,
849 LPDWORD security, FILETIME *modif )
850 {
851 NTSTATUS status;
852 char buffer[256], *buf_ptr = buffer;
853 KEY_FULL_INFORMATION *info = (KEY_FULL_INFORMATION *)buffer;
854 DWORD total_size, len;
855
856 TRACE( "(%p,%p,%d,%p,%p,%p,%p,%p,%p,%p,%p)\n", hkey, class, class_len ? *class_len : 0,
857 reserved, subkeys, max_subkey, values, max_value, max_data, security, modif );
858
859 if (class && !class_len && is_version_nt()) return ERROR_INVALID_PARAMETER;
860 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
861
862 status = NtQueryKey( hkey, KeyFullInformation, buffer, sizeof(buffer), &total_size );
863 if (status && status != STATUS_BUFFER_OVERFLOW) goto done;
864
865 if (class || class_len)
866 {
867 /* retry with a dynamically allocated buffer */
868 while (status == STATUS_BUFFER_OVERFLOW)
869 {
870 if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
871 if (!(buf_ptr = HeapAlloc( GetProcessHeap(), 0, total_size )))
872 return ERROR_NOT_ENOUGH_MEMORY;
873 info = (KEY_FULL_INFORMATION *)buf_ptr;
874 status = NtQueryKey( hkey, KeyFullInformation, buf_ptr, total_size, &total_size );
875 }
876
877 if (status) goto done;
878
879 RtlUnicodeToMultiByteSize( &len, (WCHAR *)(buf_ptr + info->ClassOffset), info->ClassLength);
880 if (class_len)
881 {
882 if (len + 1 > *class_len) status = STATUS_BUFFER_OVERFLOW;
883 *class_len = len;
884 }
885 if (class && !status)
886 {
887 RtlUnicodeToMultiByteN( class, len, NULL, (WCHAR *)(buf_ptr + info->ClassOffset),
888 info->ClassLength );
889 class[len] = 0;
890 }
891 }
892 else status = STATUS_SUCCESS;
893
894 if (subkeys) *subkeys = info->SubKeys;
895 if (max_subkey) *max_subkey = info->MaxNameLen;
896 if (max_class) *max_class = info->MaxClassLen;
897 if (values) *values = info->Values;
898 if (max_value) *max_value = info->MaxValueNameLen;
899 if (max_data) *max_data = info->MaxValueDataLen;
900 if (modif) *modif = *(FILETIME *)&info->LastWriteTime;
901
902 done:
903 if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
904 return RtlNtStatusToDosError( status );
905 }
906
907
908 /******************************************************************************
909 * RegCloseKey [ADVAPI32.@]
910 *
911 * Close an open registry key.
912 *
913 * PARAMS
914 * hkey [I] Handle of key to close
915 *
916 * RETURNS
917 * Success: ERROR_SUCCESS
918 * Failure: Error code
919 */
920 LSTATUS WINAPI RegCloseKey( HKEY hkey )
921 {
922 if (!hkey) return ERROR_INVALID_HANDLE;
923 if (hkey >= (HKEY)0x80000000) return ERROR_SUCCESS;
924 return RtlNtStatusToDosError( NtClose( hkey ) );
925 }
926
927
928 /******************************************************************************
929 * RegDeleteKeyW [ADVAPI32.@]
930 *
931 * See RegDeleteKeyA.
932 */
933 LSTATUS WINAPI RegDeleteKeyW( HKEY hkey, LPCWSTR name )
934 {
935 DWORD ret;
936 HKEY tmp;
937
938 if (!name) return ERROR_INVALID_PARAMETER;
939
940 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
941
942 if (!(ret = RegOpenKeyExW( hkey, name, 0, DELETE, &tmp )))
943 {
944 ret = RtlNtStatusToDosError( NtDeleteKey( tmp ) );
945 RegCloseKey( tmp );
946 }
947 TRACE("%s ret=%08x\n", debugstr_w(name), ret);
948 return ret;
949 }
950
951
952 /******************************************************************************
953 * RegDeleteKeyA [ADVAPI32.@]
954 *
955 * Delete a registry key.
956 *
957 * PARAMS
958 * hkey [I] Handle to parent key containing the key to delete
959 * name [I] Name of the key user hkey to delete
960 *
961 * NOTES
962 *
963 * MSDN is wrong when it says that hkey must be opened with the DELETE access
964 * right. In reality, it opens a new handle with DELETE access.
965 *
966 * RETURNS
967 * Success: ERROR_SUCCESS
968 * Failure: Error code
969 */
970 LSTATUS WINAPI RegDeleteKeyA( HKEY hkey, LPCSTR name )
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 if (!(ret = RegOpenKeyExA( hkey, name, 0, DELETE, &tmp )))
980 {
981 if (!is_version_nt()) /* win95 does recursive key deletes */
982 {
983 CHAR name[MAX_PATH];
984
985 while(!RegEnumKeyA(tmp, 0, name, sizeof(name)))
986 {
987 if(RegDeleteKeyA(tmp, name)) /* recurse */
988 break;
989 }
990 }
991 ret = RtlNtStatusToDosError( NtDeleteKey( tmp ) );
992 RegCloseKey( tmp );
993 }
994 TRACE("%s ret=%08x\n", debugstr_a(name), ret);
995 return ret;
996 }
997
998
999
1000 /******************************************************************************
1001 * RegSetValueExW [ADVAPI32.@]
1002 *
1003 * Set the data and contents of a registry value.
1004 *
1005 * PARAMS
1006 * hkey [I] Handle of key to set value for
1007 * name [I] Name of value to set
1008 * reserved [I] Reserved, must be zero
1009 * type [I] Type of the value being set
1010 * data [I] The new contents of the value to set
1011 * count [I] Size of data
1012 *
1013 * RETURNS
1014 * Success: ERROR_SUCCESS
1015 * Failure: Error code
1016 */
1017 LSTATUS WINAPI RegSetValueExW( HKEY hkey, LPCWSTR name, DWORD reserved,
1018 DWORD type, CONST BYTE *data, DWORD count )
1019 {
1020 UNICODE_STRING nameW;
1021
1022 /* no need for version check, not implemented on win9x anyway */
1023 if (count && is_string(type))
1024 {
1025 LPCWSTR str = (LPCWSTR)data;
1026 /* if user forgot to count terminating null, add it (yes NT does this) */
1027 if (str[count / sizeof(WCHAR) - 1] && !str[count / sizeof(WCHAR)])
1028 count += sizeof(WCHAR);
1029 }
1030 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
1031
1032 RtlInitUnicodeString( &nameW, name );
1033 return RtlNtStatusToDosError( NtSetValueKey( hkey, &nameW, 0, type, data, count ) );
1034 }
1035
1036
1037 /******************************************************************************
1038 * RegSetValueExA [ADVAPI32.@]
1039 *
1040 * See RegSetValueExW.
1041 *
1042 * NOTES
1043 * win95 does not care about count for REG_SZ and finds out the len by itself (js)
1044 * NT does definitely care (aj)
1045 */
1046 LSTATUS WINAPI RegSetValueExA( HKEY hkey, LPCSTR name, DWORD reserved, DWORD type,
1047 CONST BYTE *data, DWORD count )
1048 {
1049 ANSI_STRING nameA;
1050 WCHAR *dataW = NULL;
1051 NTSTATUS status;
1052
1053 if (!is_version_nt()) /* win95 */
1054 {
1055 if (type == REG_SZ)
1056 {
1057 if (!data) return ERROR_INVALID_PARAMETER;
1058 count = strlen((const char *)data) + 1;
1059 }
1060 }
1061 else if (count && is_string(type))
1062 {
1063 /* if user forgot to count terminating null, add it (yes NT does this) */
1064 if (data[count-1] && !data[count]) count++;
1065 }
1066
1067 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
1068
1069 if (is_string( type )) /* need to convert to Unicode */
1070 {
1071 DWORD lenW;
1072 RtlMultiByteToUnicodeSize( &lenW, (const char *)data, count );
1073 if (!(dataW = HeapAlloc( GetProcessHeap(), 0, lenW ))) return ERROR_OUTOFMEMORY;
1074 RtlMultiByteToUnicodeN( dataW, lenW, NULL, (const char *)data, count );
1075 count = lenW;
1076 data = (BYTE *)dataW;
1077 }
1078
1079 RtlInitAnsiString( &nameA, name );
1080 if (!(status = RtlAnsiStringToUnicodeString( &NtCurrentTeb()->StaticUnicodeString,
1081 &nameA, FALSE )))
1082 {
1083 status = NtSetValueKey( hkey, &NtCurrentTeb()->StaticUnicodeString, 0, type, data, count );
1084 }
1085 HeapFree( GetProcessHeap(), 0, dataW );
1086 return RtlNtStatusToDosError( status );
1087 }
1088
1089
1090 /******************************************************************************
1091 * RegSetValueW [ADVAPI32.@]
1092 *
1093 * Sets the data for the default or unnamed value of a reg key.
1094 *
1095 * PARAMS
1096 * hKey [I] Handle to an open key.
1097 * lpSubKey [I] Name of a subkey of hKey.
1098 * dwType [I] Type of information to store.
1099 * lpData [I] String that contains the data to set for the default value.
1100 * cbData [I] Ignored.
1101 *
1102 * RETURNS
1103 * Success: ERROR_SUCCESS
1104 * Failure: nonzero error code from Winerror.h
1105 */
1106 LSTATUS WINAPI RegSetValueW( HKEY hkey, LPCWSTR name, DWORD type, LPCWSTR data, DWORD count )
1107 {
1108 HKEY subkey = hkey;
1109 DWORD ret;
1110
1111 TRACE("(%p,%s,%d,%s,%d)\n", hkey, debugstr_w(name), type, debugstr_w(data), count );
1112
1113 if (type != REG_SZ || !data) return ERROR_INVALID_PARAMETER;
1114
1115 if (name && name[0]) /* need to create the subkey */
1116 {
1117 if ((ret = RegCreateKeyW( hkey, name, &subkey )) != ERROR_SUCCESS) return ret;
1118 }
1119
1120 ret = RegSetValueExW( subkey, NULL, 0, REG_SZ, (const BYTE*)data,
1121 (strlenW( data ) + 1) * sizeof(WCHAR) );
1122 if (subkey != hkey) RegCloseKey( subkey );
1123 return ret;
1124 }
1125
1126
1127 /******************************************************************************
1128 * RegSetValueA [ADVAPI32.@]
1129 *
1130 * See RegSetValueW.
1131 */
1132 LSTATUS WINAPI RegSetValueA( HKEY hkey, LPCSTR name, DWORD type, LPCSTR data, DWORD count )
1133 {
1134 HKEY subkey = hkey;
1135 DWORD ret;
1136
1137 TRACE("(%p,%s,%d,%s,%d)\n", hkey, debugstr_a(name), type, debugstr_a(data), count );
1138
1139 if (type != REG_SZ || !data) return ERROR_INVALID_PARAMETER;
1140
1141 if (name && name[0]) /* need to create the subkey */
1142 {
1143 if ((ret = RegCreateKeyA( hkey, name, &subkey )) != ERROR_SUCCESS) return ret;
1144 }
1145 ret = RegSetValueExA( subkey, NULL, 0, REG_SZ, (const BYTE*)data, strlen(data)+1 );
1146 if (subkey != hkey) RegCloseKey( subkey );
1147 return ret;
1148 }
1149
1150
1151
1152 /******************************************************************************
1153 * RegQueryValueExW [ADVAPI32.@]
1154 *
1155 * See RegQueryValueExA.
1156 */
1157 LSTATUS WINAPI RegQueryValueExW( HKEY hkey, LPCWSTR name, LPDWORD reserved, LPDWORD type,
1158 LPBYTE data, LPDWORD count )
1159 {
1160 NTSTATUS status;
1161 UNICODE_STRING name_str;
1162 DWORD total_size;
1163 char buffer[256], *buf_ptr = buffer;
1164 KEY_VALUE_PARTIAL_INFORMATION *info = (KEY_VALUE_PARTIAL_INFORMATION *)buffer;
1165 static const int info_size = offsetof( KEY_VALUE_PARTIAL_INFORMATION, Data );
1166
1167 TRACE("(%p,%s,%p,%p,%p,%p=%d)\n",
1168 hkey, debugstr_w(name), reserved, type, data, count,
1169 (count && data) ? *count : 0 );
1170
1171 if ((data && !count) || reserved) return ERROR_INVALID_PARAMETER;
1172 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
1173
1174 RtlInitUnicodeString( &name_str, name );
1175
1176 if (data) total_size = min( sizeof(buffer), *count + info_size );
1177 else
1178 {
1179 total_size = info_size;
1180 if (count) *count = 0;
1181 }
1182
1183 status = NtQueryValueKey( hkey, &name_str, KeyValuePartialInformation,
1184 buffer, total_size, &total_size );
1185 if (status && status != STATUS_BUFFER_OVERFLOW) goto done;
1186
1187 if (data)
1188 {
1189 /* retry with a dynamically allocated buffer */
1190 while (status == STATUS_BUFFER_OVERFLOW && total_size - info_size <= *count)
1191 {
1192 if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
1193 if (!(buf_ptr = HeapAlloc( GetProcessHeap(), 0, total_size )))
1194 return ERROR_NOT_ENOUGH_MEMORY;
1195 info = (KEY_VALUE_PARTIAL_INFORMATION *)buf_ptr;
1196 status = NtQueryValueKey( hkey, &name_str, KeyValuePartialInformation,
1197 buf_ptr, total_size, &total_size );
1198 }
1199
1200 if (!status)
1201 {
1202 memcpy( data, buf_ptr + info_size, total_size - info_size );
1203 /* if the type is REG_SZ and data is not 0-terminated
1204 * and there is enough space in the buffer NT appends a \0 */
1205 if (total_size - info_size <= *count-sizeof(WCHAR) && is_string(info->Type))
1206 {
1207 WCHAR *ptr = (WCHAR *)(data + total_size - info_size);
1208 if (ptr > (WCHAR *)data && ptr[-1]) *ptr = 0;
1209 }
1210 }
1211 else if (status != STATUS_BUFFER_OVERFLOW) goto done;
1212 }
1213 else status = STATUS_SUCCESS;
1214
1215 if (type) *type = info->Type;
1216 if (count) *count = total_size - info_size;
1217
1218 done:
1219 if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
1220 return RtlNtStatusToDosError(status);
1221 }
1222
1223
1224 /******************************************************************************
1225 * RegQueryValueExA [ADVAPI32.@]
1226 *
1227 * Get the type and contents of a specified value under with a key.
1228 *
1229 * PARAMS
1230 * hkey [I] Handle of the key to query
1231 * name [I] Name of value under hkey to query
1232 * reserved [I] Reserved - must be NULL
1233 * type [O] Destination for the value type, or NULL if not required
1234 * data [O] Destination for the values contents, or NULL if not required
1235 * count [I/O] Size of data, updated with the number of bytes returned
1236 *
1237 * RETURNS
1238 * Success: ERROR_SUCCESS. *count is updated with the number of bytes copied to data.
1239 * Failure: ERROR_INVALID_HANDLE, if hkey is invalid.
1240 * ERROR_INVALID_PARAMETER, if any other parameter is invalid.
1241 * ERROR_MORE_DATA, if on input *count is too small to hold the contents.
1242 *
1243 * NOTES
1244 * MSDN states that if data is too small it is partially filled. In reality
1245 * it remains untouched.
1246 */
1247 LSTATUS WINAPI RegQueryValueExA( HKEY hkey, LPCSTR name, LPDWORD reserved, LPDWORD type,
1248 LPBYTE data, LPDWORD count )
1249 {
1250 NTSTATUS status;
1251 ANSI_STRING nameA;
1252 DWORD total_size, datalen = 0;
1253 char buffer[256], *buf_ptr = buffer;
1254 KEY_VALUE_PARTIAL_INFORMATION *info = (KEY_VALUE_PARTIAL_INFORMATION *)buffer;
1255 static const int info_size = offsetof( KEY_VALUE_PARTIAL_INFORMATION, Data );
1256
1257 TRACE("(%p,%s,%p,%p,%p,%p=%d)\n",
1258 hkey, debugstr_a(name), reserved, type, data, count, count ? *count : 0 );
1259
1260 if ((data && !count) || reserved) return ERROR_INVALID_PARAMETER;
1261 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
1262
1263 if (count) datalen = *count;
1264 if (!data && count) *count = 0;
1265
1266 /* this matches Win9x behaviour - NT sets *type to a random value */
1267 if (type) *type = REG_NONE;
1268
1269 RtlInitAnsiString( &nameA, name );
1270 if ((status = RtlAnsiStringToUnicodeString( &NtCurrentTeb()->StaticUnicodeString,
1271 &nameA, FALSE )))
1272 return RtlNtStatusToDosError(status);
1273
1274 status = NtQueryValueKey( hkey, &NtCurrentTeb()->StaticUnicodeString,
1275 KeyValuePartialInformation, buffer, sizeof(buffer), &total_size );
1276 if (status && status != STATUS_BUFFER_OVERFLOW) goto done;
1277
1278 /* we need to fetch the contents for a string type even if not requested,
1279 * because we need to compute the length of the ASCII string. */
1280 if (data || is_string(info->Type))
1281 {
1282 /* retry with a dynamically allocated buffer */
1283 while (status == STATUS_BUFFER_OVERFLOW)
1284 {
1285 if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
1286 if (!(buf_ptr = HeapAlloc( GetProcessHeap(), 0, total_size )))
1287 {
1288 status = STATUS_NO_MEMORY;
1289 goto done;
1290 }
1291 info = (KEY_VALUE_PARTIAL_INFORMATION *)buf_ptr;
1292 status = NtQueryValueKey( hkey, &NtCurrentTeb()->StaticUnicodeString,
1293 KeyValuePartialInformation, buf_ptr, total_size, &total_size );
1294 }
1295
1296 if (status) goto done;
1297
1298 if (is_string(info->Type))
1299 {
1300 DWORD len;
1301
1302 RtlUnicodeToMultiByteSize( &len, (WCHAR *)(buf_ptr + info_size),
1303 total_size - info_size );
1304 if (data && len)
1305 {
1306 if (len > datalen) status = STATUS_BUFFER_OVERFLOW;
1307 else
1308 {
1309 RtlUnicodeToMultiByteN( (char*)data, len, NULL, (WCHAR *)(buf_ptr + info_size),
1310 total_size - info_size );
1311 /* if the type is REG_SZ and data is not 0-terminated
1312 * and there is enough space in the buffer NT appends a \0 */
1313 if (len < datalen && data[len-1]) data[len] = 0;
1314 }
1315 }
1316 total_size = len + info_size;
1317 }
1318 else if (data)
1319 {
1320 if (total_size - info_size > datalen) status = STATUS_BUFFER_OVERFLOW;
1321 else memcpy( data, buf_ptr + info_size, total_size - info_size );
1322 }
1323 }
1324 else status = STATUS_SUCCESS;
1325
1326 if (type) *type = info->Type;
1327 if (count) *count = total_size - info_size;
1328
1329 done:
1330 if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
1331 return RtlNtStatusToDosError(status);
1332 }
1333
1334
1335 /******************************************************************************
1336 * RegQueryValueW [ADVAPI32.@]
1337 *
1338 * Retrieves the data associated with the default or unnamed value of a key.
1339 *
1340 * PARAMS
1341 * hkey [I] Handle to an open key.
1342 * name [I] Name of the subkey of hKey.
1343 * data [O] Receives the string associated with the default value
1344 * of the key.
1345 * count [I/O] Size of lpValue in bytes.
1346 *
1347 * RETURNS
1348 * Success: ERROR_SUCCESS
1349 * Failure: nonzero error code from Winerror.h
1350 */
1351 LSTATUS WINAPI RegQueryValueW( HKEY hkey, LPCWSTR name, LPWSTR data, LPLONG count )
1352 {
1353 DWORD ret;
1354 HKEY subkey = hkey;
1355
1356 TRACE("(%p,%s,%p,%d)\n", hkey, debugstr_w(name), data, count ? *count : 0 );
1357
1358 if (name && name[0])
1359 {
1360 if ((ret = RegOpenKeyW( hkey, name, &subkey )) != ERROR_SUCCESS) return ret;
1361 }
1362 ret = RegQueryValueExW( subkey, NULL, NULL, NULL, (LPBYTE)data, (LPDWORD)count );
1363 if (subkey != hkey) RegCloseKey( subkey );
1364 if (ret == ERROR_FILE_NOT_FOUND)
1365 {
1366 /* return empty string if default value not found */
1367 if (data) *data = 0;
1368 if (count) *count = sizeof(WCHAR);
1369 ret = ERROR_SUCCESS;
1370 }
1371 return ret;
1372 }
1373
1374
1375 /******************************************************************************
1376 * RegQueryValueA [ADVAPI32.@]
1377 *
1378 * See RegQueryValueW.
1379 */
1380 LSTATUS WINAPI RegQueryValueA( HKEY hkey, LPCSTR name, LPSTR data, LPLONG count )
1381 {
1382 DWORD ret;
1383 HKEY subkey = hkey;
1384
1385 TRACE("(%p,%s,%p,%d)\n", hkey, debugstr_a(name), data, count ? *count : 0 );
1386
1387 if (name && name[0])
1388 {
1389 if ((ret = RegOpenKeyA( hkey, name, &subkey )) != ERROR_SUCCESS) return ret;
1390 }
1391 ret = RegQueryValueExA( subkey, NULL, NULL, NULL, (LPBYTE)data, (LPDWORD)count );
1392 if (subkey != hkey) RegCloseKey( subkey );
1393 if (ret == ERROR_FILE_NOT_FOUND)
1394 {
1395 /* return empty string if default value not found */
1396 if (data) *data = 0;
1397 if (count) *count = 1;
1398 ret = ERROR_SUCCESS;
1399 }
1400 return ret;
1401 }
1402
1403
1404 /******************************************************************************
1405 * ADVAPI_ApplyRestrictions [internal]
1406 *
1407 * Helper function for RegGetValueA/W.
1408 */
1409 static VOID ADVAPI_ApplyRestrictions( DWORD dwFlags, DWORD dwType,
1410 DWORD cbData, PLONG ret )
1411 {
1412 /* Check if the type is restricted by the passed flags */
1413 if (*ret == ERROR_SUCCESS || *ret == ERROR_MORE_DATA)
1414 {
1415 DWORD dwMask = 0;
1416
1417 switch (dwType)
1418 {
1419 case REG_NONE: dwMask = RRF_RT_REG_NONE; break;
1420 case REG_SZ: dwMask = RRF_RT_REG_SZ; break;
1421 case REG_EXPAND_SZ: dwMask = RRF_RT_REG_EXPAND_SZ; break;
1422 case REG_MULTI_SZ: dwMask = RRF_RT_REG_MULTI_SZ; break;
1423 case REG_BINARY: dwMask = RRF_RT_REG_BINARY; break;
1424 case REG_DWORD: dwMask = RRF_RT_REG_DWORD; break;
1425 case REG_QWORD: dwMask = RRF_RT_REG_QWORD; break;
1426 }
1427
1428 if (dwFlags & dwMask)
1429 {
1430 /* Type is not restricted, check for size mismatch */
1431 if (dwType == REG_BINARY)
1432 {
1433 DWORD cbExpect = 0;
1434
1435 if ((dwFlags & RRF_RT_DWORD) == RRF_RT_DWORD)
1436 cbExpect = 4;
1437 else if ((dwFlags & RRF_RT_QWORD) == RRF_RT_QWORD)
1438 cbExpect = 8;
1439
1440 if (cbExpect && cbData != cbExpect)
1441 *ret = ERROR_DATATYPE_MISMATCH;
1442 }
1443 }
1444 else *ret = ERROR_UNSUPPORTED_TYPE;
1445 }
1446 }
1447
1448
1449 /******************************************************************************
1450 * RegGetValueW [ADVAPI32.@]
1451 *
1452 * Retrieves the type and data for a value name associated with a key,
1453 * optionally expanding its content and restricting its type.
1454 *
1455 * PARAMS
1456 * hKey [I] Handle to an open key.
1457 * pszSubKey [I] Name of the subkey of hKey.
1458 * pszValue [I] Name of value under hKey/szSubKey to query.
1459 * dwFlags [I] Flags restricting the value type to retrieve.
1460 * pdwType [O] Destination for the values type, may be NULL.
1461 * pvData [O] Destination for the values content, may be NULL.
1462 * pcbData [I/O] Size of pvData, updated with the size in bytes required to
1463 * retrieve the whole content, including the trailing '\0'
1464 * for strings.
1465 *
1466 * RETURNS
1467 * Success: ERROR_SUCCESS
1468 * Failure: nonzero error code from Winerror.h
1469 *
1470 * NOTES
1471 * - Unless RRF_NOEXPAND is specified, REG_EXPAND_SZ values are automatically
1472 * expanded and pdwType is set to REG_SZ instead.
1473 * - Restrictions are applied after expanding, using RRF_RT_REG_EXPAND_SZ
1474 * without RRF_NOEXPAND is thus not allowed.
1475 * An exception is the case where RRF_RT_ANY is specified, because then
1476 * RRF_NOEXPAND is allowed.
1477 */
1478 LSTATUS WINAPI RegGetValueW( HKEY hKey, LPCWSTR pszSubKey, LPCWSTR pszValue,
1479 DWORD dwFlags, LPDWORD pdwType, PVOID pvData,
1480 LPDWORD pcbData )
1481 {
1482 DWORD dwType, cbData = pcbData ? *pcbData : 0;
1483 PVOID pvBuf = NULL;
1484 LONG ret;
1485
1486 TRACE("(%p,%s,%s,%d,%p,%p,%p=%d)\n",
1487 hKey, debugstr_w(pszSubKey), debugstr_w(pszValue), dwFlags, pdwType,
1488 pvData, pcbData, cbData);
1489
1490 if (pvData && !pcbData)
1491 return ERROR_INVALID_PARAMETER;
1492 if ((dwFlags & RRF_RT_REG_EXPAND_SZ) && !(dwFlags & RRF_NOEXPAND) &&
1493 ((dwFlags & RRF_RT_ANY) != RRF_RT_ANY))
1494 return ERROR_INVALID_PARAMETER;
1495
1496 if (pszSubKey && pszSubKey[0])
1497 {
1498 ret = RegOpenKeyExW(hKey, pszSubKey, 0, KEY_QUERY_VALUE, &hKey);
1499 if (ret != ERROR_SUCCESS) return ret;
1500 }
1501
1502 ret = RegQueryValueExW(hKey, pszValue, NULL, &dwType, pvData, &cbData);
1503
1504 /* If we are going to expand we need to read in the whole the value even
1505 * if the passed buffer was too small as the expanded string might be
1506 * smaller than the unexpanded one and could fit into cbData bytes. */
1507 if ((ret == ERROR_SUCCESS || ret == ERROR_MORE_DATA) &&
1508 dwType == REG_EXPAND_SZ && !(dwFlags & RRF_NOEXPAND))
1509 {
1510 do {
1511 HeapFree(GetProcessHeap(), 0, pvBuf);
1512
1513 pvBuf = HeapAlloc(GetProcessHeap(), 0, cbData);
1514 if (!pvBuf)
1515 {
1516 ret = ERROR_NOT_ENOUGH_MEMORY;
1517 break;
1518 }
1519
1520 if (ret == ERROR_MORE_DATA || !pvData)
1521 ret = RegQueryValueExW(hKey, pszValue, NULL,
1522 &dwType, pvBuf, &cbData);
1523 else
1524 {
1525 /* Even if cbData was large enough we have to copy the
1526 * string since ExpandEnvironmentStrings can't handle
1527 * overlapping buffers. */
1528 CopyMemory(pvBuf, pvData, cbData);
1529 }
1530
1531 /* Both the type or the value itself could have been modified in
1532 * between so we have to keep retrying until the buffer is large
1533 * enough or we no longer have to expand the value. */
1534 } while (dwType == REG_EXPAND_SZ && ret == ERROR_MORE_DATA);
1535
1536 if (ret == ERROR_SUCCESS)
1537 {
1538 /* Recheck dwType in case it changed since the first call */
1539 if (dwType == REG_EXPAND_SZ)
1540 {
1541 cbData = ExpandEnvironmentStringsW(pvBuf, pvData,
1542 pcbData ? *pcbData : 0) * sizeof(WCHAR);
1543 dwType = REG_SZ;
1544 if(pvData && pcbData && cbData > *pcbData)
1545 ret = ERROR_MORE_DATA;
1546 }
1547 else if (pvData)
1548 CopyMemory(pvData, pvBuf, *pcbData);
1549 }
1550
1551 HeapFree(GetProcessHeap(), 0, pvBuf);
1552 }
1553
1554 if (pszSubKey && pszSubKey[0])
1555 RegCloseKey(hKey);
1556
1557 ADVAPI_ApplyRestrictions(dwFlags, dwType, cbData, &ret);
1558
1559 if (pvData && ret != ERROR_SUCCESS && (dwFlags & RRF_ZEROONFAILURE))
1560 ZeroMemory(pvData, *pcbData);
1561
1562 if (pdwType) *pdwType = dwType;
1563 if (pcbData) *pcbData = cbData;
1564
1565 return ret;
1566 }
1567
1568
1569 /******************************************************************************
1570 * RegGetValueA [ADVAPI32.@]
1571 *
1572 * See RegGetValueW.
1573 */
1574 LSTATUS WINAPI RegGetValueA( HKEY hKey, LPCSTR pszSubKey, LPCSTR pszValue,
1575 DWORD dwFlags, LPDWORD pdwType, PVOID pvData,
1576 LPDWORD pcbData )
1577 {
1578 DWORD dwType, cbData = pcbData ? *pcbData : 0;
1579 PVOID pvBuf = NULL;
1580 LONG ret;
1581
1582 TRACE("(%p,%s,%s,%d,%p,%p,%p=%d)\n",
1583 hKey, pszSubKey, pszValue, dwFlags, pdwType, pvData, pcbData,
1584 cbData);
1585
1586 if (pvData && !pcbData)
1587 return ERROR_INVALID_PARAMETER;
1588 if ((dwFlags & RRF_RT_REG_EXPAND_SZ) && !(dwFlags & RRF_NOEXPAND) &&
1589 ((dwFlags & RRF_RT_ANY) != RRF_RT_ANY))
1590 return ERROR_INVALID_PARAMETER;
1591
1592 if (pszSubKey && pszSubKey[0])
1593 {
1594 ret = RegOpenKeyExA(hKey, pszSubKey, 0, KEY_QUERY_VALUE, &hKey);
1595 if (ret != ERROR_SUCCESS) return ret;
1596 }
1597
1598 ret = RegQueryValueExA(hKey, pszValue, NULL, &dwType, pvData, &cbData);
1599
1600 /* If we are going to expand we need to read in the whole the value even
1601 * if the passed buffer was too small as the expanded string might be
1602 * smaller than the unexpanded one and could fit into cbData bytes. */
1603 if ((ret == ERROR_SUCCESS || ret == ERROR_MORE_DATA) &&
1604 dwType == REG_EXPAND_SZ && !(dwFlags & RRF_NOEXPAND))
1605 {
1606 do {
1607 HeapFree(GetProcessHeap(), 0, pvBuf);
1608
1609 pvBuf = HeapAlloc(GetProcessHeap(), 0, cbData);
1610 if (!pvBuf)
1611 {
1612 ret = ERROR_NOT_ENOUGH_MEMORY;
1613 break;
1614 }
1615
1616 if (ret == ERROR_MORE_DATA || !pvData)
1617 ret = RegQueryValueExA(hKey, pszValue, NULL,
1618 &dwType, pvBuf, &cbData);
1619 else
1620 {
1621 /* Even if cbData was large enough we have to copy the
1622 * string since ExpandEnvironmentStrings can't handle
1623 * overlapping buffers. */
1624 CopyMemory(pvBuf, pvData, cbData);
1625 }
1626
1627 /* Both the type or the value itself could have been modified in
1628 * between so we have to keep retrying until the buffer is large
1629 * enough or we no longer have to expand the value. */
1630 } while (dwType == REG_EXPAND_SZ && ret == ERROR_MORE_DATA);
1631
1632 if (ret == ERROR_SUCCESS)
1633 {
1634 /* Recheck dwType in case it changed since the first call */
1635 if (dwType == REG_EXPAND_SZ)
1636 {
1637 cbData = ExpandEnvironmentStringsA(pvBuf, pvData,
1638 pcbData ? *pcbData : 0);
1639 dwType = REG_SZ;
1640 if(pvData && pcbData && cbData > *pcbData)
1641 ret = ERROR_MORE_DATA;
1642 }
1643 else if (pvData)
1644 CopyMemory(pvData, pvBuf, *pcbData);
1645 }
1646
1647 HeapFree(GetProcessHeap(), 0, pvBuf);
1648 }
1649
1650 if (pszSubKey && pszSubKey[0])
1651 RegCloseKey(hKey);
1652
1653 ADVAPI_ApplyRestrictions(dwFlags, dwType, cbData, &ret);
1654
1655 if (pvData && ret != ERROR_SUCCESS && (dwFlags & RRF_ZEROONFAILURE))
1656 ZeroMemory(pvData, *pcbData);
1657
1658 if (pdwType) *pdwType = dwType;
1659 if (pcbData) *pcbData = cbData;
1660
1661 return ret;
1662 }
1663
1664
1665 /******************************************************************************
1666 * RegEnumValueW [ADVAPI32.@]
1667 *
1668 * Enumerates the values for the specified open registry key.
1669 *
1670 * PARAMS
1671 * hkey [I] Handle to key to query
1672 * index [I] Index of value to query
1673 * value [O] Value string
1674 * val_count [I/O] Size of value buffer (in wchars)
1675 * reserved [I] Reserved
1676 * type [O] Type code
1677 * data [O] Value data
1678 * count [I/O] Size of data buffer (in bytes)
1679 *
1680 * RETURNS
1681 * Success: ERROR_SUCCESS
1682 * Failure: nonzero error code from Winerror.h
1683 */
1684
1685 LSTATUS WINAPI RegEnumValueW( HKEY hkey, DWORD index, LPWSTR value, LPDWORD val_count,
1686 LPDWORD reserved, LPDWORD type, LPBYTE data, LPDWORD count )
1687 {
1688 NTSTATUS status;
1689 DWORD total_size;
1690 char buffer[256], *buf_ptr = buffer;
1691 KEY_VALUE_FULL_INFORMATION *info = (KEY_VALUE_FULL_INFORMATION *)buffer;
1692 static const int info_size = offsetof( KEY_VALUE_FULL_INFORMATION, Name );
1693
1694 TRACE("(%p,%d,%p,%p,%p,%p,%p,%p)\n",
1695 hkey, index, value, val_count, reserved, type, data, count );
1696
1697 /* NT only checks count, not val_count */
1698 if ((data && !count) || reserved) return ERROR_INVALID_PARAMETER;
1699 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
1700
1701 total_size = info_size + (MAX_PATH + 1) * sizeof(WCHAR);
1702 if (data) total_size += *count;
1703 total_size = min( sizeof(buffer), total_size );
1704
1705 status = NtEnumerateValueKey( hkey, index, KeyValueFullInformation,
1706 buffer, total_size, &total_size );
1707 if (status && status != STATUS_BUFFER_OVERFLOW) goto done;
1708
1709 if (value || data)
1710 {
1711 /* retry with a dynamically allocated buffer */
1712 while (status == STATUS_BUFFER_OVERFLOW)
1713 {
1714 if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
1715 if (!(buf_ptr = HeapAlloc( GetProcessHeap(), 0, total_size )))
1716 return ERROR_NOT_ENOUGH_MEMORY;
1717 info = (KEY_VALUE_FULL_INFORMATION *)buf_ptr;
1718 status = NtEnumerateValueKey( hkey, index, KeyValueFullInformation,
1719 buf_ptr, total_size, &total_size );
1720 }
1721
1722 if (status) goto done;
1723
1724 if (value)
1725 {
1726 if (info->NameLength/sizeof(WCHAR) >= *val_count)
1727 {
1728 status = STATUS_BUFFER_OVERFLOW;
1729 goto overflow;
1730 }
1731 memcpy( value, info->Name, info->NameLength );
1732 *val_count = info->NameLength / sizeof(WCHAR);
1733 value[*val_count] = 0;
1734 }
1735
1736 if (data)
1737 {
1738 if (total_size - info->DataOffset > *count)
1739 {
1740 status = STATUS_BUFFER_OVERFLOW;
1741 goto overflow;
1742 }
1743 memcpy( data, buf_ptr + info->DataOffset, total_size - info->DataOffset );
1744 if (total_size - info->DataOffset <= *count-sizeof(WCHAR) && is_string(info->Type))
1745 {
1746 /* if the type is REG_SZ and data is not 0-terminated
1747 * and there is enough space in the buffer NT appends a \0 */
1748 WCHAR *ptr = (WCHAR *)(data + total_size - info->DataOffset);
1749 if (ptr > (WCHAR *)data && ptr[-1]) *ptr = 0;
1750 }
1751 }
1752 }
1753 else status = STATUS_SUCCESS;
1754
1755 overflow:
1756 if (type) *type = info->Type;
1757 if (count) *count = info->DataLength;
1758
1759 done:
1760 if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
1761 return RtlNtStatusToDosError(status);
1762 }
1763
1764
1765 /******************************************************************************
1766 * RegEnumValueA [ADVAPI32.@]
1767 *
1768 * See RegEnumValueW.
1769 */
1770 LSTATUS WINAPI RegEnumValueA( HKEY hkey, DWORD index, LPSTR value, LPDWORD val_count,
1771 LPDWORD reserved, LPDWORD type, LPBYTE data, LPDWORD count )
1772 {
1773 NTSTATUS status;
1774 DWORD total_size;
1775 char buffer[256], *buf_ptr = buffer;
1776 KEY_VALUE_FULL_INFORMATION *info = (KEY_VALUE_FULL_INFORMATION *)buffer;
1777 static const int info_size = offsetof( KEY_VALUE_FULL_INFORMATION, Name );
1778
1779 TRACE("(%p,%d,%p,%p,%p,%p,%p,%p)\n",
1780 hkey, index, value, val_count, reserved, type, data, count );
1781
1782 /* NT only checks count, not val_count */
1783 if ((data && !count) || reserved) return ERROR_INVALID_PARAMETER;
1784 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
1785
1786 total_size = info_size + (MAX_PATH + 1) * sizeof(WCHAR);
1787 if (data) total_size += *count;
1788 total_size = min( sizeof(buffer), total_size );
1789
1790 status = NtEnumerateValueKey( hkey, index, KeyValueFullInformation,
1791 buffer, total_size, &total_size );
1792 if (status && status != STATUS_BUFFER_OVERFLOW) goto done;
1793
1794 /* we need to fetch the contents for a string type even if not requested,
1795 * because we need to compute the length of the ASCII string. */
1796 if (value || data || is_string(info->Type))
1797 {
1798 /* retry with a dynamically allocated buffer */
1799 while (status == STATUS_BUFFER_OVERFLOW)
1800 {
1801 if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
1802 if (!(buf_ptr = HeapAlloc( GetProcessHeap(), 0, total_size )))
1803 return ERROR_NOT_ENOUGH_MEMORY;
1804 info = (KEY_VALUE_FULL_INFORMATION *)buf_ptr;
1805 status = NtEnumerateValueKey( hkey, index, KeyValueFullInformation,
1806 buf_ptr, total_size, &total_size );
1807 }
1808
1809 if (status) goto done;
1810
1811 if (is_string(info->Type))
1812 {
1813 DWORD len;
1814 RtlUnicodeToMultiByteSize( &len, (WCHAR *)(buf_ptr + info->DataOffset),
1815 total_size - info->DataOffset );
1816 if (data && len)
1817 {
1818 if (len > *count) status = STATUS_BUFFER_OVERFLOW;
1819 else
1820 {
1821 RtlUnicodeToMultiByteN( (char*)data, len, NULL, (WCHAR *)(buf_ptr + info->DataOffset),
1822 total_size - info->DataOffset );
1823 /* if the type is REG_SZ and data is not 0-terminated
1824 * and there is enough space in the buffer NT appends a \0 */
1825 if (len < *count && data[len-1]) data[len] = 0;
1826 }
1827 }
1828 info->DataLength = len;
1829 }
1830 else if (data)
1831 {
1832 if (total_size - info->DataOffset > *count) status = STATUS_BUFFER_OVERFLOW;
1833 else memcpy( data, buf_ptr + info->DataOffset, total_size - info->DataOffset );
1834 }
1835
1836 if (value && !status)
1837 {
1838 DWORD len;
1839
1840 RtlUnicodeToMultiByteSize( &len, info->Name, info->NameLength );
1841 if (len >= *val_count)
1842 {
1843 status = STATUS_BUFFER_OVERFLOW;
1844 if (*val_count)
1845 {
1846 len = *val_count - 1;
1847 RtlUnicodeToMultiByteN( value, len, NULL, info->Name, info->NameLength );
1848 value[len] = 0;
1849 }
1850 }
1851 else
1852 {
1853 RtlUnicodeToMultiByteN( value, len, NULL, info->Name, info->NameLength );
1854 value[len] = 0;
1855 *val_count = len;
1856 }
1857 }
1858 }
1859 else status = STATUS_SUCCESS;
1860
1861 if (type) *type = info->Type;
1862 if (count) *count = info->DataLength;
1863
1864 done:
1865 if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
1866 return RtlNtStatusToDosError(status);
1867 }
1868
1869
1870
1871 /******************************************************************************
1872 * RegDeleteValueW [ADVAPI32.@]
1873 *
1874 * See RegDeleteValueA.
1875 */
1876 LSTATUS WINAPI RegDeleteValueW( HKEY hkey, LPCWSTR name )
1877 {
1878 UNICODE_STRING nameW;
1879
1880 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
1881
1882 RtlInitUnicodeString( &nameW, name );
1883 return RtlNtStatusToDosError( NtDeleteValueKey( hkey, &nameW ) );
1884 }
1885
1886
1887 /******************************************************************************
1888 * RegDeleteValueA [ADVAPI32.@]
1889 *
1890 * Delete a value from the registry.
1891 *
1892 * PARAMS
1893 * hkey [I] Registry handle of the key holding the value
1894 * name [I] Name of the value under hkey to delete
1895 *
1896 * RETURNS
1897 * Success: ERROR_SUCCESS
1898 * Failure: nonzero error code from Winerror.h
1899 */
1900 LSTATUS WINAPI RegDeleteValueA( HKEY hkey, LPCSTR name )
1901 {
1902 STRING nameA;
1903 NTSTATUS status;
1904
1905 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
1906
1907 RtlInitAnsiString( &nameA, name );
1908 if (!(status = RtlAnsiStringToUnicodeString( &NtCurrentTeb()->StaticUnicodeString,
1909 &nameA, FALSE )))
1910 status = NtDeleteValueKey( hkey, &NtCurrentTeb()->StaticUnicodeString );
1911 return RtlNtStatusToDosError( status );
1912 }
1913
1914
1915 /******************************************************************************
1916 * RegLoadKeyW [ADVAPI32.@]
1917 *
1918 * Create a subkey under HKEY_USERS or HKEY_LOCAL_MACHINE and store
1919 * registration information from a specified file into that subkey.
1920 *
1921 * PARAMS
1922 * hkey [I] Handle of open key
1923 * subkey [I] Address of name of subkey
1924 * filename [I] Address of filename for registry information
1925 *
1926 * RETURNS
1927 * Success: ERROR_SUCCESS
1928 * Failure: nonzero error code from Winerror.h
1929 */
1930 LSTATUS WINAPI RegLoadKeyW( HKEY hkey, LPCWSTR subkey, LPCWSTR filename )
1931 {
1932 OBJECT_ATTRIBUTES destkey, file;
1933 UNICODE_STRING subkeyW, filenameW;
1934 NTSTATUS status;
1935
1936 if (!(hkey = get_special_root_hkey(hkey))) return ERROR_INVALID_HANDLE;
1937
1938 destkey.Length = sizeof(destkey);
1939 destkey.RootDirectory = hkey; /* root key: HKLM or HKU */
1940 destkey.ObjectName = &subkeyW; /* name of the key */
1941 destkey.Attributes = 0;
1942 destkey.SecurityDescriptor = NULL;
1943 destkey.SecurityQualityOfService = NULL;
1944 RtlInitUnicodeString(&subkeyW, subkey);
1945
1946 file.Length = sizeof(file);
1947 file.RootDirectory = NULL;
1948 file.ObjectName = &filenameW; /* file containing the hive */
1949 file.Attributes = OBJ_CASE_INSENSITIVE;
1950 file.SecurityDescriptor = NULL;
1951 file.SecurityQualityOfService = NULL;
1952 RtlDosPathNameToNtPathName_U(filename, &filenameW, NULL, NULL);
1953
1954 status = NtLoadKey(&destkey, &file);
1955 RtlFreeUnicodeString(&filenameW);
1956 return RtlNtStatusToDosError( status );
1957 }
1958
1959
1960 /******************************************************************************
1961 * RegLoadKeyA [ADVAPI32.@]
1962 *
1963 * See RegLoadKeyW.
1964 */
1965 LSTATUS WINAPI RegLoadKeyA( HKEY hkey, LPCSTR subkey, LPCSTR filename )
1966 {
1967 UNICODE_STRING subkeyW, filenameW;
1968 STRING subkeyA, filenameA;
1969 NTSTATUS status;
1970 LONG ret;
1971
1972 RtlInitAnsiString(&subkeyA, subkey);
1973 RtlInitAnsiString(&filenameA, filename);
1974
1975 RtlInitUnicodeString(&subkeyW, NULL);
1976 RtlInitUnicodeString(&filenameW, NULL);
1977 if (!(status = RtlAnsiStringToUnicodeString(&subkeyW, &subkeyA, TRUE)) &&
1978 !(status = RtlAnsiStringToUnicodeString(&filenameW, &filenameA, TRUE)))
1979 {
1980 ret = RegLoadKeyW(hkey, subkeyW.Buffer, filenameW.Buffer);
1981 }
1982 else ret = RtlNtStatusToDosError(status);
1983 RtlFreeUnicodeString(&subkeyW);
1984 RtlFreeUnicodeString(&filenameW);
1985 return ret;
1986 }
1987
1988
1989 /******************************************************************************
1990 * RegSaveKeyW [ADVAPI32.@]
1991 *
1992 * Save a key and all of its subkeys and values to a new file in the standard format.
1993 *
1994 * PARAMS
1995 * hkey [I] Handle of key where save begins
1996 * lpFile [I] Address of filename to save to
1997 * sa [I] Address of security structure
1998 *
1999 * RETURNS
2000 * Success: ERROR_SUCCESS
2001 * Failure: nonzero error code from Winerror.h
2002 */
2003 LSTATUS WINAPI RegSaveKeyW( HKEY hkey, LPCWSTR file, LPSECURITY_ATTRIBUTES sa )
2004 {
2005 static const WCHAR format[] =
2006 {'r','e','g','%','0','4','x','.','t','m','p',0};
2007 WCHAR buffer[MAX_PATH];
2008 int count = 0;
2009 LPWSTR nameW;
2010 DWORD ret, err;
2011 HANDLE handle;
2012
2013 TRACE( "(%p,%s,%p)\n", hkey, debugstr_w(file), sa );
2014
2015 if (!file || !*file) return ERROR_INVALID_PARAMETER;
2016 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
2017
2018 err = GetLastError();
2019 GetFullPathNameW( file, sizeof(buffer)/sizeof(WCHAR), buffer, &nameW );
2020
2021 for (;;)
2022 {
2023 snprintfW( nameW, 16, format, count++ );
2024 handle = CreateFileW( buffer, GENERIC_WRITE, 0, NULL,
2025 CREATE_NEW, FILE_ATTRIBUTE_NORMAL, 0 );
2026 if (handle != INVALID_HANDLE_VALUE) break;
2027 if ((ret = GetLastError()) != ERROR_FILE_EXISTS) goto done;
2028
2029 /* Something gone haywire ? Please report if this happens abnormally */
2030 if (count >= 100)
2031 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);
2032 }
2033
2034 ret = RtlNtStatusToDosError(NtSaveKey(hkey, handle));
2035
2036 CloseHandle( handle );
2037 if (!ret)
2038 {
2039 if (!MoveFileExW( buffer, file, MOVEFILE_REPLACE_EXISTING ))
2040 {
2041 ERR( "Failed to move %s to %s\n", debugstr_w(buffer),
2042 debugstr_w(file) );
2043 ret = GetLastError();
2044 }
2045 }
2046 if (ret) DeleteFileW( buffer );
2047
2048 done:
2049 SetLastError( err ); /* restore last error code */
2050 return ret;
2051 }
2052
2053
2054 /******************************************************************************
2055 * RegSaveKeyA [ADVAPI32.@]
2056 *
2057 * See RegSaveKeyW.
2058 */
2059 LSTATUS WINAPI RegSaveKeyA( HKEY hkey, LPCSTR file, LPSECURITY_ATTRIBUTES sa )
2060 {
2061 UNICODE_STRING *fileW = &NtCurrentTeb()->StaticUnicodeString;
2062 NTSTATUS status;
2063 STRING fileA;
2064
2065 RtlInitAnsiString(&fileA, file);
2066 if ((status = RtlAnsiStringToUnicodeString(fileW, &fileA, FALSE)))
2067 return RtlNtStatusToDosError( status );
2068 return RegSaveKeyW(hkey, fileW->Buffer, sa);
2069 }
2070
2071
2072 /******************************************************************************
2073 * RegRestoreKeyW [ADVAPI32.@]
2074 *
2075 * Read the registry information from a file and copy it over a key.
2076 *
2077 * PARAMS
2078 * hkey [I] Handle of key where restore begins
2079 * lpFile [I] Address of filename containing saved tree
2080 * dwFlags [I] Optional flags
2081 *
2082 * RETURNS
2083 * Success: ERROR_SUCCESS
2084 * Failure: nonzero error code from Winerror.h
2085 */
2086 LSTATUS WINAPI RegRestoreKeyW( HKEY hkey, LPCWSTR lpFile, DWORD dwFlags )
2087 {
2088 TRACE("(%p,%s,%d)\n",hkey,debugstr_w(lpFile),dwFlags);
2089
2090 /* It seems to do this check before the hkey check */
2091 if (!lpFile || !*lpFile)
2092 return ERROR_INVALID_PARAMETER;
2093
2094 FIXME("(%p,%s,%d): stub\n",hkey,debugstr_w(lpFile),dwFlags);
2095
2096 /* Check for file existence */
2097
2098 return ERROR_SUCCESS;
2099 }
2100
2101
2102 /******************************************************************************
2103 * RegRestoreKeyA [ADVAPI32.@]
2104 *
2105 * See RegRestoreKeyW.
2106 */
2107 LSTATUS WINAPI RegRestoreKeyA( HKEY hkey, LPCSTR lpFile, DWORD dwFlags )
2108 {
2109 UNICODE_STRING lpFileW;
2110 LONG ret;
2111
2112 RtlCreateUnicodeStringFromAsciiz( &lpFileW, lpFile );
2113 ret = RegRestoreKeyW( hkey, lpFileW.Buffer, dwFlags );
2114 RtlFreeUnicodeString( &lpFileW );
2115 return ret;
2116 }
2117
2118
2119 /******************************************************************************
2120 * RegUnLoadKeyW [ADVAPI32.@]
2121 *
2122 * Unload a registry key and its subkeys from the registry.
2123 *
2124 * PARAMS
2125 * hkey [I] Handle of open key
2126 * lpSubKey [I] Address of name of subkey to unload
2127 *
2128 * RETURNS
2129 * Success: ERROR_SUCCESS
2130 * Failure: nonzero error code from Winerror.h
2131 */
2132 LSTATUS WINAPI RegUnLoadKeyW( HKEY hkey, LPCWSTR lpSubKey )
2133 {
2134 DWORD ret;
2135 HKEY shkey;
2136 OBJECT_ATTRIBUTES attr;
2137 UNICODE_STRING subkey;
2138
2139 TRACE("(%p,%s)\n",hkey, debugstr_w(lpSubKey));
2140
2141 ret = RegOpenKeyW(hkey,lpSubKey,&shkey);
2142 if( ret )
2143 return ERROR_INVALID_PARAMETER;
2144
2145 RtlInitUnicodeString(&subkey, lpSubKey);
2146 InitializeObjectAttributes(&attr, &subkey, OBJ_CASE_INSENSITIVE, shkey, NULL);
2147 ret = RtlNtStatusToDosError(NtUnloadKey(&attr));
2148
2149 RegCloseKey(shkey);
2150
2151 return ret;
2152 }
2153
2154
2155 /******************************************************************************
2156 * RegUnLoadKeyA [ADVAPI32.@]
2157 *
2158 * See RegUnLoadKeyW.
2159 */
2160 LSTATUS WINAPI RegUnLoadKeyA( HKEY hkey, LPCSTR lpSubKey )
2161 {
2162 UNICODE_STRING lpSubKeyW;
2163 LONG ret;
2164
2165 RtlCreateUnicodeStringFromAsciiz( &lpSubKeyW, lpSubKey );
2166 ret = RegUnLoadKeyW( hkey, lpSubKeyW.Buffer );
2167 RtlFreeUnicodeString( &lpSubKeyW );
2168 return ret;
2169 }
2170
2171
2172 /******************************************************************************
2173 * RegReplaceKeyW [ADVAPI32.@]
2174 *
2175 * Replace the file backing a registry key and all its subkeys with another file.
2176 *
2177 * PARAMS
2178 * hkey [I] Handle of open key
2179 * lpSubKey [I] Address of name of subkey
2180 * lpNewFile [I] Address of filename for file with new data
2181 * lpOldFile [I] Address of filename for backup file
2182 *
2183 * RETURNS
2184 * Success: ERROR_SUCCESS
2185 * Failure: nonzero error code from Winerror.h
2186 */
2187 LSTATUS WINAPI RegReplaceKeyW( HKEY hkey, LPCWSTR lpSubKey, LPCWSTR lpNewFile,
2188 LPCWSTR lpOldFile )
2189 {
2190 FIXME("(%p,%s,%s,%s): stub\n", hkey, debugstr_w(lpSubKey),
2191 debugstr_w(lpNewFile),debugstr_w(lpOldFile));
2192 return ERROR_SUCCESS;
2193 }
2194
2195
2196 /******************************************************************************
2197 * RegReplaceKeyA [ADVAPI32.@]
2198 *
2199 * See RegReplaceKeyW.
2200 */
2201 LSTATUS WINAPI RegReplaceKeyA( HKEY hkey, LPCSTR lpSubKey, LPCSTR lpNewFile,
2202 LPCSTR lpOldFile )
2203 {
2204 UNICODE_STRING lpSubKeyW;
2205 UNICODE_STRING lpNewFileW;
2206 UNICODE_STRING lpOldFileW;
2207 LONG ret;
2208
2209 RtlCreateUnicodeStringFromAsciiz( &lpSubKeyW, lpSubKey );
2210 RtlCreateUnicodeStringFromAsciiz( &lpOldFileW, lpOldFile );
2211 RtlCreateUnicodeStringFromAsciiz( &lpNewFileW, lpNewFile );
2212 ret = RegReplaceKeyW( hkey, lpSubKeyW.Buffer, lpNewFileW.Buffer, lpOldFileW.Buffer );
2213 RtlFreeUnicodeString( &lpOldFileW );
2214 RtlFreeUnicodeString( &lpNewFileW );
2215 RtlFreeUnicodeString( &lpSubKeyW );
2216 return ret;
2217 }
2218
2219
2220 /******************************************************************************
2221 * RegSetKeySecurity [ADVAPI32.@]
2222 *
2223 * Set the security of an open registry key.
2224 *
2225 * PARAMS
2226 * hkey [I] Open handle of key to set
2227 * SecurityInfo [I] Descriptor contents
2228 * pSecurityDesc [I] Address of descriptor for key
2229 *
2230 * RETURNS
2231 * Success: ERROR_SUCCESS
2232 * Failure: nonzero error code from Winerror.h
2233 */
2234 LSTATUS WINAPI RegSetKeySecurity( HKEY hkey, SECURITY_INFORMATION SecurityInfo,
2235 PSECURITY_DESCRIPTOR pSecurityDesc )
2236 {
2237 TRACE("(%p,%d,%p)\n",hkey,SecurityInfo,pSecurityDesc);
2238
2239 /* It seems to perform this check before the hkey check */
2240 if ((SecurityInfo & OWNER_SECURITY_INFORMATION) ||
2241 (SecurityInfo & GROUP_SECURITY_INFORMATION) ||
2242 (SecurityInfo & DACL_SECURITY_INFORMATION) ||
2243 (SecurityInfo & SACL_SECURITY_INFORMATION)) {
2244 /* Param OK */
2245 } else
2246 return ERROR_INVALID_PARAMETER;
2247
2248 if (!pSecurityDesc)
2249 return ERROR_INVALID_PARAMETER;
2250
2251 FIXME(":(%p,%d,%p): stub\n",hkey,SecurityInfo,pSecurityDesc);
2252
2253 return ERROR_SUCCESS;
2254 }
2255
2256
2257 /******************************************************************************
2258 * RegGetKeySecurity [ADVAPI32.@]
2259 *
2260 * Get a copy of the security descriptor for a given registry key.
2261 *
2262 * PARAMS
2263 * hkey [I] Open handle of key to set
2264 * SecurityInformation [I] Descriptor contents
2265 * pSecurityDescriptor [O] Address of descriptor for key
2266 * lpcbSecurityDescriptor [I/O] Address of size of buffer and description
2267 *
2268 * RETURNS
2269 * Success: ERROR_SUCCESS
2270 * Failure: Error code
2271 */
2272 LSTATUS WINAPI RegGetKeySecurity( HKEY hkey, SECURITY_INFORMATION SecurityInformation,
2273 PSECURITY_DESCRIPTOR pSecurityDescriptor,
2274 LPDWORD lpcbSecurityDescriptor )
2275 {
2276 TRACE("(%p,%d,%p,%d)\n",hkey,SecurityInformation,pSecurityDescriptor,
2277 *lpcbSecurityDescriptor);
2278
2279 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
2280
2281 return RtlNtStatusToDosError( NtQuerySecurityObject( hkey,
2282 SecurityInformation, pSecurityDescriptor,
2283 *lpcbSecurityDescriptor, lpcbSecurityDescriptor ) );
2284 }
2285
2286
2287 /******************************************************************************
2288 * RegFlushKey [ADVAPI32.@]
2289 *
2290 * Immediately write a registry key to registry.
2291 *
2292 * PARAMS
2293 * hkey [I] Handle of key to write
2294 *
2295 * RETURNS
2296 * Success: ERROR_SUCCESS
2297 * Failure: Error code
2298 */
2299 LSTATUS WINAPI RegFlushKey( HKEY hkey )
2300 {
2301 hkey = get_special_root_hkey( hkey );
2302 if (!hkey) return ERROR_INVALID_HANDLE;
2303
2304 return RtlNtStatusToDosError( NtFlushKey( hkey ) );
2305 }
2306
2307
2308 /******************************************************************************
2309 * RegConnectRegistryW [ADVAPI32.@]
2310 *
2311 * Establish a connection to a predefined registry key on another computer.
2312 *
2313 * PARAMS
2314 * lpMachineName [I] Address of name of remote computer
2315 * hHey [I] Predefined registry handle
2316 * phkResult [I] Address of buffer for remote registry handle
2317 *
2318 * RETURNS
2319 * Success: ERROR_SUCCESS
2320 * Failure: nonzero error code from Winerror.h
2321 */
2322 LSTATUS WINAPI RegConnectRegistryW( LPCWSTR lpMachineName, HKEY hKey,
2323 PHKEY phkResult )
2324 {
2325 LONG ret;
2326
2327 TRACE("(%s,%p,%p): stub\n",debugstr_w(lpMachineName),hKey,phkResult);
2328
2329 if (!lpMachineName || !*lpMachineName) {
2330 /* Use the local machine name */
2331 ret = RegOpenKeyW( hKey, NULL, phkResult );
2332 }
2333 else {
2334 WCHAR compName[MAX_COMPUTERNAME_LENGTH + 1];
2335 DWORD len = sizeof(compName) / sizeof(WCHAR);
2336
2337 /* MSDN says lpMachineName must start with \\ : not so */
2338 if( lpMachineName[0] == '\\' && lpMachineName[1] == '\\')
2339 lpMachineName += 2;
2340 if (GetComputerNameW(compName, &len))
2341 {
2342 if (!strcmpiW(lpMachineName, compName))
2343 ret = RegOpenKeyW(hKey, NULL, phkResult);
2344 else
2345 {
2346 FIXME("Connect to %s is not supported.\n",debugstr_w(lpMachineName));
2347 ret = ERROR_BAD_NETPATH;
2348 }
2349 }
2350 else
2351 ret = GetLastError();
2352 }
2353 return ret;
2354 }
2355
2356
2357 /******************************************************************************
2358 * RegConnectRegistryA [ADVAPI32.@]
2359 *
2360 * See RegConnectRegistryW.
2361 */
2362 LSTATUS WINAPI RegConnectRegistryA( LPCSTR machine, HKEY hkey, PHKEY reskey )
2363 {
2364 UNICODE_STRING machineW;
2365 LONG ret;
2366
2367 RtlCreateUnicodeStringFromAsciiz( &machineW, machine );
2368 ret = RegConnectRegistryW( machineW.Buffer, hkey, reskey );
2369 RtlFreeUnicodeString( &machineW );
2370 return ret;
2371 }
2372
2373
2374 /******************************************************************************
2375 * RegNotifyChangeKeyValue [ADVAPI32.@]
2376 *
2377 * Notify the caller about changes to the attributes or contents of a registry key.
2378 *
2379 * PARAMS
2380 * hkey [I] Handle of key to watch
2381 * fWatchSubTree [I] Flag for subkey notification
2382 * fdwNotifyFilter [I] Changes to be reported
2383 * hEvent [I] Handle of signaled event
2384 * fAsync [I] Flag for asynchronous reporting
2385 *
2386 * RETURNS
2387 * Success: ERROR_SUCCESS
2388 * Failure: nonzero error code from Winerror.h
2389 */
2390 LSTATUS WINAPI RegNotifyChangeKeyValue( HKEY hkey, BOOL fWatchSubTree,
2391 DWORD fdwNotifyFilter, HANDLE hEvent,
2392 BOOL fAsync )
2393 {
2394 NTSTATUS status;
2395 IO_STATUS_BLOCK iosb;
2396
2397 hkey = get_special_root_hkey( hkey );
2398 if (!hkey) return ERROR_INVALID_HANDLE;
2399
2400 TRACE("(%p,%i,%d,%p,%i)\n", hkey, fWatchSubTree, fdwNotifyFilter,
2401 hEvent, fAsync);
2402
2403 status = NtNotifyChangeKey( hkey, hEvent, NULL, NULL, &iosb,
2404 fdwNotifyFilter, fAsync, NULL, 0,
2405 fWatchSubTree);
2406
2407 if (status && status != STATUS_TIMEOUT)
2408 return RtlNtStatusToDosError( status );
2409
2410 return ERROR_SUCCESS;
2411 }
2412
2413 /******************************************************************************
2414 * RegOpenUserClassesRoot [ADVAPI32.@]
2415 *
2416 * Open the HKEY_CLASSES_ROOT key for a user.
2417 *
2418 * PARAMS
2419 * hToken [I] Handle of token representing the user
2420 * dwOptions [I] Reserved, must be 0
2421 * samDesired [I] Desired access rights
2422 * phkResult [O] Destination for the resulting key handle
2423 *
2424 * RETURNS
2425 * Success: ERROR_SUCCESS
2426 * Failure: nonzero error code from Winerror.h
2427 *
2428 * NOTES
2429 * On Windows 2000 and upwards the HKEY_CLASSES_ROOT key is a view of the
2430 * "HKEY_LOCAL_MACHINE\Software\Classes" and the
2431 * "HKEY_CURRENT_USER\Software\Classes" keys merged together.
2432 */
2433 LSTATUS WINAPI RegOpenUserClassesRoot(
2434 HANDLE hToken,
2435 DWORD dwOptions,
2436 REGSAM samDesired,
2437 PHKEY phkResult
2438 )
2439 {
2440 FIXME("(%p, 0x%x, 0x%x, %p) semi-stub\n", hToken, dwOptions, samDesired, phkResult);
2441
2442 *phkResult = HKEY_CLASSES_ROOT;
2443 return ERROR_SUCCESS;
2444 }
2445
2446 /******************************************************************************
2447 * load_string [Internal]
2448 *
2449 * This is basically a copy of user32/resource.c's LoadStringW. Necessary to
2450 * avoid importing user32, which is higher level than advapi32. Helper for
2451 * RegLoadMUIString.
2452 */
2453 static int load_string(HINSTANCE hModule, UINT resId, LPWSTR pwszBuffer, INT cMaxChars)
2454 {
2455 HGLOBAL hMemory;
2456 HRSRC hResource;
2457 WCHAR *pString;
2458 int idxString;
2459
2460 /* Negative values have to be inverted. */
2461 if (HIWORD(resId) == 0xffff)
2462 resId = (UINT)(-((INT)resId));
2463
2464 /* Load the resource into memory and get a pointer to it. */
2465 hResource = FindResourceW(hModule, MAKEINTRESOURCEW(LOWORD(resId >> 4) + 1), (LPWSTR)RT_STRING);
2466 if (!hResource) return 0;
2467 hMemory = LoadResource(hModule, hResource);
2468 if (!hMemory) return 0;
2469 pString = LockResource(hMemory);
2470
2471 /* Strings are length-prefixed. Lowest nibble of resId is an index. */
2472 idxString = resId & 0xf;
2473 while (idxString--) pString += *pString + 1;
2474
2475 /* If no buffer is given, return length of the string. */
2476 if (!pwszBuffer) return *pString;
2477
2478 /* Else copy over the string, respecting the buffer size. */
2479 cMaxChars = (*pString < cMaxChars) ? *pString : (cMaxChars - 1);
2480 if (cMaxChars >= 0) {
2481 memcpy(pwszBuffer, pString+1, cMaxChars * sizeof(WCHAR));
2482 pwszBuffer[cMaxChars] = '\0';
2483 }
2484
2485 return cMaxChars;
2486 }
2487
2488 /******************************************************************************
2489 * RegLoadMUIStringW [ADVAPI32.@]
2490 *
2491 * Load the localized version of a string resource from some PE, respective
2492 * id and path of which are given in the registry value in the format
2493 * @[path]\dllname,-resourceId
2494 *
2495 * PARAMS
2496 * hKey [I] Key, of which to load the string value from.
2497 * pszValue [I] The value to be loaded (Has to be of REG_EXPAND_SZ or REG_SZ type).
2498 * pszBuffer [O] Buffer to store the localized string in.
2499 * cbBuffer [I] Size of the destination buffer in bytes.
2500 * pcbData [O] Number of bytes written to pszBuffer (optional, may be NULL).
2501 * dwFlags [I] None supported yet.
2502 * pszBaseDir [I] Not supported yet.
2503 *
2504 * RETURNS
2505 * Success: ERROR_SUCCESS,
2506 * Failure: nonzero error code from winerror.h
2507 *
2508 * NOTES
2509 * This is an API of Windows Vista, which wasn't available at the time this code
2510 * was written. We have to check for the correct behaviour once it's available.
2511 */
2512 LSTATUS WINAPI RegLoadMUIStringW(HKEY hKey, LPCWSTR pwszValue, LPWSTR pwszBuffer, DWORD cbBuffer,
2513 LPDWORD pcbData, DWORD dwFlags, LPCWSTR pwszBaseDir)
2514 {
2515 DWORD dwValueType, cbData;
2516 LPWSTR pwszTempBuffer = NULL, pwszExpandedBuffer = NULL;
2517 LONG result;
2518
2519 TRACE("(hKey = %p, pwszValue = %s, pwszBuffer = %p, cbBuffer = %d, pcbData = %p, "
2520 "dwFlags = %d, pwszBaseDir = %s) stub\n", hKey, debugstr_w(pwszValue), pwszBuffer,
2521 cbBuffer, pcbData, dwFlags, debugstr_w(pwszBaseDir));
2522
2523 /* Parameter sanity checks. */
2524 if (!hKey || !pwszBuffer)
2525 return ERROR_INVALID_PARAMETER;
2526
2527 if (pwszBaseDir && *pwszBaseDir) {
2528 FIXME("BaseDir parameter not yet supported!\n");
2529 return ERROR_INVALID_PARAMETER;
2530 }
2531
2532 /* Check for value existence and correctness of it's type, allocate a buffer and load it. */
2533 result = RegQueryValueExW(hKey, pwszValue, NULL, &dwValueType, NULL, &cbData);
2534 if (result != ERROR_SUCCESS) goto cleanup;
2535 if (!(dwValueType == REG_SZ || dwValueType == REG_EXPAND_SZ) || !cbData) {
2536 result = ERROR_FILE_NOT_FOUND;
2537 goto cleanup;
2538 }
2539 pwszTempBuffer = HeapAlloc(GetProcessHeap(), 0, cbData);
2540 if (!pwszTempBuffer) {
2541 result = ERROR_NOT_ENOUGH_MEMORY;
2542 goto cleanup;
2543 }
2544 result = RegQueryValueExW(hKey, pwszValue, NULL, &dwValueType, (LPBYTE)pwszTempBuffer, &cbData);
2545 if (result != ERROR_SUCCESS) goto cleanup;
2546
2547 /* Expand environment variables, if appropriate, or copy the original string over. */
2548 if (dwValueType == REG_EXPAND_SZ) {
2549 cbData = ExpandEnvironmentStringsW(pwszTempBuffer, NULL, 0) * sizeof(WCHAR);
2550 if (!cbData) goto cleanup;
2551 pwszExpandedBuffer = HeapAlloc(GetProcessHeap(), 0, cbData);
2552 if (!pwszExpandedBuffer) {
2553 result = ERROR_NOT_ENOUGH_MEMORY;
2554 goto cleanup;
2555 }
2556 ExpandEnvironmentStringsW(pwszTempBuffer, pwszExpandedBuffer, cbData);
2557 } else {
2558 pwszExpandedBuffer = HeapAlloc(GetProcessHeap(), 0, cbData);
2559 memcpy(pwszExpandedBuffer, pwszTempBuffer, cbData);
2560 }
2561
2562 /* If the value references a resource based string, parse the value and load the string.
2563 * Else just copy over the original value. */
2564 result = ERROR_SUCCESS;
2565 if (*pwszExpandedBuffer != '@') { /* '@' is the prefix for resource based string entries. */
2566 lstrcpynW(pwszBuffer, pwszExpandedBuffer, cbBuffer / sizeof(WCHAR));
2567 } else {
2568 WCHAR *pComma = strrchrW(pwszExpandedBuffer, ',');
2569 UINT uiStringId;
2570 HMODULE hModule;
2571
2572 /* Format of the expanded value is 'path_to_dll,-resId' */
2573 if (!pComma || pComma[1] != '-') {
2574 result = ERROR_BADKEY;
2575 goto cleanup;
2576 }
2577
2578 uiStringId = atoiW(pComma+2);
2579 *pComma = '\0';
2580
2581 hModule = LoadLibraryW(pwszExpandedBuffer + 1);
2582 if (!hModule || !load_string(hModule, uiStringId, pwszBuffer, cbBuffer/sizeof(WCHAR)))
2583 result = ERROR_BADKEY;
2584 FreeLibrary(hModule);
2585 }
2586
2587 cleanup:
2588 HeapFree(GetProcessHeap(), 0, pwszTempBuffer);
2589 HeapFree(GetProcessHeap(), 0, pwszExpandedBuffer);
2590 return result;
2591 }
2592
2593 /******************************************************************************
2594 * RegLoadMUIStringA [ADVAPI32.@]
2595 *
2596 * See RegLoadMUIStringW
2597 */
2598 LSTATUS WINAPI RegLoadMUIStringA(HKEY hKey, LPCSTR pszValue, LPSTR pszBuffer, DWORD cbBuffer,
2599 LPDWORD pcbData, DWORD dwFlags, LPCSTR pszBaseDir)
2600 {
2601 UNICODE_STRING valueW, baseDirW;
2602 WCHAR *pwszBuffer;
2603 DWORD cbData = cbBuffer * sizeof(WCHAR);
2604 LONG result;
2605
2606 valueW.Buffer = baseDirW.Buffer = pwszBuffer = NULL;
2607 if (!RtlCreateUnicodeStringFromAsciiz(&valueW, pszValue) ||
2608 !RtlCreateUnicodeStringFromAsciiz(&baseDirW, pszBaseDir) ||
2609 !(pwszBuffer = HeapAlloc(GetProcessHeap(), 0, cbData)))
2610 {
2611 result = ERROR_NOT_ENOUGH_MEMORY;
2612 goto cleanup;
2613 }
2614
2615 result = RegLoadMUIStringW(hKey, valueW.Buffer, pwszBuffer, cbData, NULL, dwFlags,
2616 baseDirW.Buffer);
2617
2618 if (result == ERROR_SUCCESS) {
2619 cbData = WideCharToMultiByte(CP_ACP, 0, pwszBuffer, -1, pszBuffer, cbBuffer, NULL, NULL);
2620 if (pcbData)
2621 *pcbData = cbData;
2622 }
2623
2624 cleanup:
2625 HeapFree(GetProcessHeap(), 0, pwszBuffer);
2626 RtlFreeUnicodeString(&baseDirW);
2627 RtlFreeUnicodeString(&valueW);
2628
2629 return result;
2630 }
2631
2632 /******************************************************************************
2633 * RegDisablePredefinedCache [ADVAPI32.@]
2634 *
2635 * Disables the caching of the HKEY_CLASSES_ROOT key for the process.
2636 *
2637 * PARAMS
2638 * None.
2639 *
2640 * RETURNS
2641 * Success: ERROR_SUCCESS
2642 * Failure: nonzero error code from Winerror.h
2643 *
2644 * NOTES
2645 * This is useful for services that use impersonation.
2646 */
2647 LSTATUS WINAPI RegDisablePredefinedCache(void)
2648 {
2649 HKEY hkey_current_user;
2650 int idx = (UINT_PTR)HKEY_CURRENT_USER - (UINT_PTR)HKEY_SPECIAL_ROOT_FIRST;
2651
2652 /* prevent caching of future requests */
2653 hkcu_cache_disabled = TRUE;
2654
2655 hkey_current_user = InterlockedExchangePointer( (void **)&special_root_keys[idx], NULL );
2656
2657 if (hkey_current_user)
2658 NtClose( hkey_current_user );
2659
2660 return ERROR_SUCCESS;
2661 }
2662
2663 /******************************************************************************
2664 * RegDeleteTreeW [ADVAPI32.@]
2665 *
2666 */
2667 LSTATUS WINAPI RegDeleteTreeW(HKEY hKey, LPCWSTR lpszSubKey)
2668 {
2669 LONG ret;
2670 DWORD dwMaxSubkeyLen, dwMaxValueLen;
2671 DWORD dwMaxLen, dwSize;
2672 WCHAR szNameBuf[MAX_PATH], *lpszName = szNameBuf;
2673 HKEY hSubKey = hKey;
2674
2675 TRACE("(hkey=%p,%p %s)\n", hKey, lpszSubKey, debugstr_w(lpszSubKey));
2676
2677 if(lpszSubKey)
2678 {
2679 ret = RegOpenKeyExW(hKey, lpszSubKey, 0, KEY_READ, &hSubKey);
2680 if (ret) return ret;
2681 }
2682
2683 /* Get highest length for keys, values */
2684 ret = RegQueryInfoKeyW(hSubKey, NULL, NULL, NULL, NULL,
2685 &dwMaxSubkeyLen, NULL, NULL, &dwMaxValueLen, NULL, NULL, NULL);
2686 if (ret) goto cleanup;
2687
2688 dwMaxSubkeyLen++;
2689 dwMaxValueLen++;
2690 dwMaxLen = max(dwMaxSubkeyLen, dwMaxValueLen);
2691 if (dwMaxLen > sizeof(szNameBuf)/sizeof(WCHAR))
2692 {
2693 /* Name too big: alloc a buffer for it */
2694 if (!(lpszName = HeapAlloc( GetProcessHeap(), 0, dwMaxLen*sizeof(WCHAR))))
2695 {
2696 ret = ERROR_NOT_ENOUGH_MEMORY;
2697 goto cleanup;
2698 }
2699 }
2700
2701
2702 /* Recursively delete all the subkeys */
2703 while (TRUE)
2704 {
2705 dwSize = dwMaxLen;
2706 if (RegEnumKeyExW(hSubKey, 0, lpszName, &dwSize, NULL,
2707 NULL, NULL, NULL)) break;
2708
2709 ret = RegDeleteTreeW(hSubKey, lpszName);
2710 if (ret) goto cleanup;
2711 }
2712
2713 if (lpszSubKey)
2714 ret = RegDeleteKeyW(hKey, lpszSubKey);
2715 else
2716 while (TRUE)
2717 {
2718 dwSize = dwMaxLen;
2719 if (RegEnumValueW(hKey, 0, lpszName, &dwSize,
2720 NULL, NULL, NULL, NULL)) break;
2721
2722 ret = RegDeleteValueW(hKey, lpszName);
2723 if (ret) goto cleanup;
2724 }
2725
2726 cleanup:
2727 /* Free buffer if allocated */
2728 if (lpszName != szNameBuf)
2729 HeapFree( GetProcessHeap(), 0, lpszName);
2730 if(lpszSubKey)
2731 RegCloseKey(hSubKey);
2732 return ret;
2733 }
2734
2735 /******************************************************************************
2736 * RegDeleteTreeA [ADVAPI32.@]
2737 *
2738 */
2739 LSTATUS WINAPI RegDeleteTreeA(HKEY hKey, LPCSTR lpszSubKey)
2740 {
2741 LONG ret;
2742 UNICODE_STRING lpszSubKeyW;
2743
2744 if (lpszSubKey) RtlCreateUnicodeStringFromAsciiz( &lpszSubKeyW, lpszSubKey);
2745 else lpszSubKeyW.Buffer = NULL;
2746 ret = RegDeleteTreeW( hKey, lpszSubKeyW.Buffer);
2747 RtlFreeUnicodeString( &lpszSubKeyW );
2748 return ret;
2749 }
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