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winspool/tests: Run more tests on Win64.
[wine/hacks.git] / dlls / advapi32 / registry.c
blob52de6c5d427f99ab9cc456c24c67a67234fbb93c
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, KEY_ALL_ACCESS );
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 = KEY_ALL_ACCESS; /* 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 KEY_ALL_ACCESS, 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 KEY_ALL_ACCESS, 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 = KEY_ALL_ACCESS; /* 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 (!name || !*name)
385 {
386 *retkey = hkey;
387 return ERROR_SUCCESS;
388 }
389 return RegOpenKeyExW( hkey, name, 0, KEY_ALL_ACCESS, retkey );
390 }
391
392
393 /******************************************************************************
394 * RegOpenKeyA [ADVAPI32.@]
395 *
396 * Open a registry key.
397 *
398 * PARAMS
399 * hkey [I] Handle of parent key to open the new key under
400 * name [I] Name of the key under hkey to open
401 * retkey [O] Destination for the resulting Handle
402 *
403 * RETURNS
404 * Success: ERROR_SUCCESS
405 * Failure: A standard Win32 error code. retkey is set to 0.
406 */
407 LSTATUS WINAPI RegOpenKeyA( HKEY hkey, LPCSTR name, PHKEY retkey )
408 {
409 if (!name || !*name)
410 {
411 *retkey = hkey;
412 return ERROR_SUCCESS;
413 }
414 return RegOpenKeyExA( hkey, name, 0, KEY_ALL_ACCESS, retkey );
415 }
416
417
418 /******************************************************************************
419 * RegOpenCurrentUser [ADVAPI32.@]
420 *
421 * Get a handle to the HKEY_CURRENT_USER key for the user
422 * the current thread is impersonating.
423 *
424 * PARAMS
425 * access [I] Desired access rights to the key
426 * retkey [O] Handle to the opened key
427 *
428 * RETURNS
429 * Success: ERROR_SUCCESS
430 * Failure: nonzero error code from Winerror.h
431 *
432 * FIXME
433 * This function is supposed to retrieve a handle to the
434 * HKEY_CURRENT_USER for the user the current thread is impersonating.
435 * Since Wine does not currently allow threads to impersonate other users,
436 * this stub should work fine.
437 */
438 LSTATUS WINAPI RegOpenCurrentUser( REGSAM access, PHKEY retkey )
439 {
440 return RegOpenKeyExA( HKEY_CURRENT_USER, "", 0, access, retkey );
441 }
442
443
444
445 /******************************************************************************
446 * RegEnumKeyExW [ADVAPI32.@]
447 *
448 * Enumerate subkeys of the specified open registry key.
449 *
450 * PARAMS
451 * hkey [I] Handle to key to enumerate
452 * index [I] Index of subkey to enumerate
453 * name [O] Buffer for subkey name
454 * name_len [O] Size of subkey buffer
455 * reserved [I] Reserved
456 * class [O] Buffer for class string
457 * class_len [O] Size of class buffer
458 * ft [O] Time key last written to
459 *
460 * RETURNS
461 * Success: ERROR_SUCCESS
462 * Failure: System error code. If there are no more subkeys available, the
463 * function returns ERROR_NO_MORE_ITEMS.
464 */
465 LSTATUS WINAPI RegEnumKeyExW( HKEY hkey, DWORD index, LPWSTR name, LPDWORD name_len,
466 LPDWORD reserved, LPWSTR class, LPDWORD class_len, FILETIME *ft )
467 {
468 NTSTATUS status;
469 char buffer[256], *buf_ptr = buffer;
470 KEY_NODE_INFORMATION *info = (KEY_NODE_INFORMATION *)buffer;
471 DWORD total_size;
472
473 TRACE( "(%p,%d,%p,%p(%u),%p,%p,%p,%p)\n", hkey, index, name, name_len,
474 name_len ? *name_len : 0, reserved, class, class_len, ft );
475
476 if (reserved) return ERROR_INVALID_PARAMETER;
477 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
478
479 status = NtEnumerateKey( hkey, index, KeyNodeInformation,
480 buffer, sizeof(buffer), &total_size );
481
482 while (status == STATUS_BUFFER_OVERFLOW)
483 {
484 /* retry with a dynamically allocated buffer */
485 if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
486 if (!(buf_ptr = HeapAlloc( GetProcessHeap(), 0, total_size )))
487 return ERROR_NOT_ENOUGH_MEMORY;
488 info = (KEY_NODE_INFORMATION *)buf_ptr;
489 status = NtEnumerateKey( hkey, index, KeyNodeInformation,
490 buf_ptr, total_size, &total_size );
491 }
492
493 if (!status)
494 {
495 DWORD len = info->NameLength / sizeof(WCHAR);
496 DWORD cls_len = info->ClassLength / sizeof(WCHAR);
497
498 if (ft) *ft = *(FILETIME *)&info->LastWriteTime;
499
500 if (len >= *name_len || (class && class_len && (cls_len >= *class_len)))
501 status = STATUS_BUFFER_OVERFLOW;
502 else
503 {
504 *name_len = len;
505 memcpy( name, info->Name, info->NameLength );
506 name[len] = 0;
507 if (class_len)
508 {
509 *class_len = cls_len;
510 if (class)
511 {
512 memcpy( class, buf_ptr + info->ClassOffset, info->ClassLength );
513 class[cls_len] = 0;
514 }
515 }
516 }
517 }
518
519 if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
520 return RtlNtStatusToDosError( status );
521 }
522
523
524 /******************************************************************************
525 * RegEnumKeyExA [ADVAPI32.@]
526 *
527 * See RegEnumKeyExW.
528 */
529 LSTATUS WINAPI RegEnumKeyExA( HKEY hkey, DWORD index, LPSTR name, LPDWORD name_len,
530 LPDWORD reserved, LPSTR class, LPDWORD class_len, FILETIME *ft )
531 {
532 NTSTATUS status;
533 char buffer[256], *buf_ptr = buffer;
534 KEY_NODE_INFORMATION *info = (KEY_NODE_INFORMATION *)buffer;
535 DWORD total_size;
536
537 TRACE( "(%p,%d,%p,%p(%u),%p,%p,%p,%p)\n", hkey, index, name, name_len,
538 name_len ? *name_len : 0, reserved, class, class_len, ft );
539
540 if (reserved) return ERROR_INVALID_PARAMETER;
541 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
542
543 status = NtEnumerateKey( hkey, index, KeyNodeInformation,
544 buffer, sizeof(buffer), &total_size );
545
546 while (status == STATUS_BUFFER_OVERFLOW)
547 {
548 /* retry with a dynamically allocated buffer */
549 if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
550 if (!(buf_ptr = HeapAlloc( GetProcessHeap(), 0, total_size )))
551 return ERROR_NOT_ENOUGH_MEMORY;
552 info = (KEY_NODE_INFORMATION *)buf_ptr;
553 status = NtEnumerateKey( hkey, index, KeyNodeInformation,
554 buf_ptr, total_size, &total_size );
555 }
556
557 if (!status)
558 {
559 DWORD len, cls_len;
560
561 RtlUnicodeToMultiByteSize( &len, info->Name, info->NameLength );
562 RtlUnicodeToMultiByteSize( &cls_len, (WCHAR *)(buf_ptr + info->ClassOffset),
563 info->ClassLength );
564 if (ft) *ft = *(FILETIME *)&info->LastWriteTime;
565
566 if (len >= *name_len || (class && class_len && (cls_len >= *class_len)))
567 status = STATUS_BUFFER_OVERFLOW;
568 else
569 {
570 *name_len = len;
571 RtlUnicodeToMultiByteN( name, len, NULL, info->Name, info->NameLength );
572 name[len] = 0;
573 if (class_len)
574 {
575 *class_len = cls_len;
576 if (class)
577 {
578 RtlUnicodeToMultiByteN( class, cls_len, NULL,
579 (WCHAR *)(buf_ptr + info->ClassOffset),
580 info->ClassLength );
581 class[cls_len] = 0;
582 }
583 }
584 }
585 }
586
587 if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
588 return RtlNtStatusToDosError( status );
589 }
590
591
592 /******************************************************************************
593 * RegEnumKeyW [ADVAPI32.@]
594 *
595 * Enumerates subkeys of the specified open reg key.
596 *
597 * PARAMS
598 * hKey [I] Handle to an open key.
599 * dwIndex [I] Index of the subkey of hKey to retrieve.
600 * lpName [O] Name of the subkey.
601 * cchName [I] Size of lpName in TCHARS.
602 *
603 * RETURNS
604 * Success: ERROR_SUCCESS
605 * Failure: system error code. If there are no more subkeys available, the
606 * function returns ERROR_NO_MORE_ITEMS.
607 */
608 LSTATUS WINAPI RegEnumKeyW( HKEY hkey, DWORD index, LPWSTR name, DWORD name_len )
609 {
610 return RegEnumKeyExW( hkey, index, name, &name_len, NULL, NULL, NULL, NULL );
611 }
612
613
614 /******************************************************************************
615 * RegEnumKeyA [ADVAPI32.@]
616 *
617 * See RegEnumKeyW.
618 */
619 LSTATUS WINAPI RegEnumKeyA( HKEY hkey, DWORD index, LPSTR name, DWORD name_len )
620 {
621 return RegEnumKeyExA( hkey, index, name, &name_len, NULL, NULL, NULL, NULL );
622 }
623
624
625 /******************************************************************************
626 * RegQueryInfoKeyW [ADVAPI32.@]
627 *
628 * Retrieves information about the specified registry key.
629 *
630 * PARAMS
631 * hkey [I] Handle to key to query
632 * class [O] Buffer for class string
633 * class_len [O] Size of class string buffer
634 * reserved [I] Reserved
635 * subkeys [O] Buffer for number of subkeys
636 * max_subkey [O] Buffer for longest subkey name length
637 * max_class [O] Buffer for longest class string length
638 * values [O] Buffer for number of value entries
639 * max_value [O] Buffer for longest value name length
640 * max_data [O] Buffer for longest value data length
641 * security [O] Buffer for security descriptor length
642 * modif [O] Modification time
643 *
644 * RETURNS
645 * Success: ERROR_SUCCESS
646 * Failure: system error code.
647 *
648 * NOTES
649 * - win95 allows class to be valid and class_len to be NULL
650 * - winnt returns ERROR_INVALID_PARAMETER if class is valid and class_len is NULL
651 * - both allow class to be NULL and class_len to be NULL
652 * (it's hard to test validity, so test !NULL instead)
653 */
654 LSTATUS WINAPI RegQueryInfoKeyW( HKEY hkey, LPWSTR class, LPDWORD class_len, LPDWORD reserved,
655 LPDWORD subkeys, LPDWORD max_subkey, LPDWORD max_class,
656 LPDWORD values, LPDWORD max_value, LPDWORD max_data,
657 LPDWORD security, FILETIME *modif )
658 {
659 NTSTATUS status;
660 char buffer[256], *buf_ptr = buffer;
661 KEY_FULL_INFORMATION *info = (KEY_FULL_INFORMATION *)buffer;
662 DWORD total_size;
663
664 TRACE( "(%p,%p,%d,%p,%p,%p,%p,%p,%p,%p,%p)\n", hkey, class, class_len ? *class_len : 0,
665 reserved, subkeys, max_subkey, values, max_value, max_data, security, modif );
666
667 if (class && !class_len && is_version_nt()) return ERROR_INVALID_PARAMETER;
668 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
669
670 status = NtQueryKey( hkey, KeyFullInformation, buffer, sizeof(buffer), &total_size );
671 if (status && status != STATUS_BUFFER_OVERFLOW) goto done;
672
673 if (class)
674 {
675 /* retry with a dynamically allocated buffer */
676 while (status == STATUS_BUFFER_OVERFLOW)
677 {
678 if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
679 if (!(buf_ptr = HeapAlloc( GetProcessHeap(), 0, total_size )))
680 return ERROR_NOT_ENOUGH_MEMORY;
681 info = (KEY_FULL_INFORMATION *)buf_ptr;
682 status = NtQueryKey( hkey, KeyFullInformation, buf_ptr, total_size, &total_size );
683 }
684
685 if (status) goto done;
686
687 if (class_len && (info->ClassLength/sizeof(WCHAR) + 1 > *class_len))
688 {
689 status = STATUS_BUFFER_OVERFLOW;
690 }
691 else
692 {
693 memcpy( class, buf_ptr + info->ClassOffset, info->ClassLength );
694 class[info->ClassLength/sizeof(WCHAR)] = 0;
695 }
696 }
697 else status = STATUS_SUCCESS;
698
699 if (class_len) *class_len = info->ClassLength / sizeof(WCHAR);
700 if (subkeys) *subkeys = info->SubKeys;
701 if (max_subkey) *max_subkey = info->MaxNameLen;
702 if (max_class) *max_class = info->MaxClassLen;
703 if (values) *values = info->Values;
704 if (max_value) *max_value = info->MaxValueNameLen;
705 if (max_data) *max_data = info->MaxValueDataLen;
706 if (modif) *modif = *(FILETIME *)&info->LastWriteTime;
707
708 done:
709 if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
710 return RtlNtStatusToDosError( status );
711 }
712
713
714 /******************************************************************************
715 * RegQueryMultipleValuesA [ADVAPI32.@]
716 *
717 * Retrieves the type and data for a list of value names associated with a key.
718 *
719 * PARAMS
720 * hKey [I] Handle to an open key.
721 * val_list [O] Array of VALENT structures that describes the entries.
722 * num_vals [I] Number of elements in val_list.
723 * lpValueBuf [O] Pointer to a buffer that receives the data for each value.
724 * ldwTotsize [I/O] Size of lpValueBuf.
725 *
726 * RETURNS
727 * Success: ERROR_SUCCESS. ldwTotsize contains num bytes copied.
728 * Failure: nonzero error code from Winerror.h ldwTotsize contains num needed
729 * bytes.
730 */
731 LSTATUS WINAPI RegQueryMultipleValuesA( HKEY hkey, PVALENTA val_list, DWORD num_vals,
732 LPSTR lpValueBuf, LPDWORD ldwTotsize )
733 {
734 unsigned int i;
735 DWORD maxBytes = *ldwTotsize;
736 HRESULT status;
737 LPSTR bufptr = lpValueBuf;
738 *ldwTotsize = 0;
739
740 TRACE("(%p,%p,%d,%p,%p=%d)\n", hkey, val_list, num_vals, lpValueBuf, ldwTotsize, *ldwTotsize);
741
742 for(i=0; i < num_vals; ++i)
743 {
744
745 val_list[i].ve_valuelen=0;
746 status = RegQueryValueExA(hkey, val_list[i].ve_valuename, NULL, NULL, NULL, &val_list[i].ve_valuelen);
747 if(status != ERROR_SUCCESS)
748 {
749 return status;
750 }
751
752 if(lpValueBuf != NULL && *ldwTotsize + val_list[i].ve_valuelen <= maxBytes)
753 {
754 status = RegQueryValueExA(hkey, val_list[i].ve_valuename, NULL, &val_list[i].ve_type,
755 (LPBYTE)bufptr, &val_list[i].ve_valuelen);
756 if(status != ERROR_SUCCESS)
757 {
758 return status;
759 }
760
761 val_list[i].ve_valueptr = (DWORD_PTR)bufptr;
762
763 bufptr += val_list[i].ve_valuelen;
764 }
765
766 *ldwTotsize += val_list[i].ve_valuelen;
767 }
768 return lpValueBuf != NULL && *ldwTotsize <= maxBytes ? ERROR_SUCCESS : ERROR_MORE_DATA;
769 }
770
771
772 /******************************************************************************
773 * RegQueryMultipleValuesW [ADVAPI32.@]
774 *
775 * See RegQueryMultipleValuesA.
776 */
777 LSTATUS WINAPI RegQueryMultipleValuesW( HKEY hkey, PVALENTW val_list, DWORD num_vals,
778 LPWSTR lpValueBuf, LPDWORD ldwTotsize )
779 {
780 unsigned int i;
781 DWORD maxBytes = *ldwTotsize;
782 HRESULT status;
783 LPSTR bufptr = (LPSTR)lpValueBuf;
784 *ldwTotsize = 0;
785
786 TRACE("(%p,%p,%d,%p,%p=%d)\n", hkey, val_list, num_vals, lpValueBuf, ldwTotsize, *ldwTotsize);
787
788 for(i=0; i < num_vals; ++i)
789 {
790 val_list[i].ve_valuelen=0;
791 status = RegQueryValueExW(hkey, val_list[i].ve_valuename, NULL, NULL, NULL, &val_list[i].ve_valuelen);
792 if(status != ERROR_SUCCESS)
793 {
794 return status;
795 }
796
797 if(lpValueBuf != NULL && *ldwTotsize + val_list[i].ve_valuelen <= maxBytes)
798 {
799 status = RegQueryValueExW(hkey, val_list[i].ve_valuename, NULL, &val_list[i].ve_type,
800 (LPBYTE)bufptr, &val_list[i].ve_valuelen);
801 if(status != ERROR_SUCCESS)
802 {
803 return status;
804 }
805
806 val_list[i].ve_valueptr = (DWORD_PTR)bufptr;
807
808 bufptr += val_list[i].ve_valuelen;
809 }
810
811 *ldwTotsize += val_list[i].ve_valuelen;
812 }
813 return lpValueBuf != NULL && *ldwTotsize <= maxBytes ? ERROR_SUCCESS : ERROR_MORE_DATA;
814 }
815
816 /******************************************************************************
817 * RegQueryInfoKeyA [ADVAPI32.@]
818 *
819 * Retrieves information about a registry key.
820 *
821 * PARAMS
822 * hKey [I] Handle to an open key.
823 * lpClass [O] Class string of the key.
824 * lpcClass [I/O] size of lpClass.
825 * lpReserved [I] Reserved; must be NULL.
826 * lpcSubKeys [O] Number of subkeys contained by the key.
827 * lpcMaxSubKeyLen [O] Size of the key's subkey with the longest name.
828 * lpcMaxClassLen [O] Size of the longest string specifying a subkey
829 * class in TCHARS.
830 * lpcValues [O] Number of values associated with the key.
831 * lpcMaxValueNameLen [O] Size of the key's longest value name in TCHARS.
832 * lpcMaxValueLen [O] Longest data component among the key's values
833 * lpcbSecurityDescriptor [O] Size of the key's security descriptor.
834 * lpftLastWriteTime [O] FILETIME structure that is the last write time.
835 *
836 * RETURNS
837 * Success: ERROR_SUCCESS
838 * Failure: nonzero error code from Winerror.h
839 */
840 LSTATUS WINAPI RegQueryInfoKeyA( HKEY hkey, LPSTR class, LPDWORD class_len, LPDWORD reserved,
841 LPDWORD subkeys, LPDWORD max_subkey, LPDWORD max_class,
842 LPDWORD values, LPDWORD max_value, LPDWORD max_data,
843 LPDWORD security, FILETIME *modif )
844 {
845 NTSTATUS status;
846 char buffer[256], *buf_ptr = buffer;
847 KEY_FULL_INFORMATION *info = (KEY_FULL_INFORMATION *)buffer;
848 DWORD total_size, len;
849
850 TRACE( "(%p,%p,%d,%p,%p,%p,%p,%p,%p,%p,%p)\n", hkey, class, class_len ? *class_len : 0,
851 reserved, subkeys, max_subkey, values, max_value, max_data, security, modif );
852
853 if (class && !class_len && is_version_nt()) return ERROR_INVALID_PARAMETER;
854 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
855
856 status = NtQueryKey( hkey, KeyFullInformation, buffer, sizeof(buffer), &total_size );
857 if (status && status != STATUS_BUFFER_OVERFLOW) goto done;
858
859 if (class || class_len)
860 {
861 /* retry with a dynamically allocated buffer */
862 while (status == STATUS_BUFFER_OVERFLOW)
863 {
864 if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
865 if (!(buf_ptr = HeapAlloc( GetProcessHeap(), 0, total_size )))
866 return ERROR_NOT_ENOUGH_MEMORY;
867 info = (KEY_FULL_INFORMATION *)buf_ptr;
868 status = NtQueryKey( hkey, KeyFullInformation, buf_ptr, total_size, &total_size );
869 }
870
871 if (status) goto done;
872
873 RtlUnicodeToMultiByteSize( &len, (WCHAR *)(buf_ptr + info->ClassOffset), info->ClassLength);
874 if (class_len)
875 {
876 if (len + 1 > *class_len) status = STATUS_BUFFER_OVERFLOW;
877 *class_len = len;
878 }
879 if (class && !status)
880 {
881 RtlUnicodeToMultiByteN( class, len, NULL, (WCHAR *)(buf_ptr + info->ClassOffset),
882 info->ClassLength );
883 class[len] = 0;
884 }
885 }
886 else status = STATUS_SUCCESS;
887
888 if (subkeys) *subkeys = info->SubKeys;
889 if (max_subkey) *max_subkey = info->MaxNameLen;
890 if (max_class) *max_class = info->MaxClassLen;
891 if (values) *values = info->Values;
892 if (max_value) *max_value = info->MaxValueNameLen;
893 if (max_data) *max_data = info->MaxValueDataLen;
894 if (modif) *modif = *(FILETIME *)&info->LastWriteTime;
895
896 done:
897 if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
898 return RtlNtStatusToDosError( status );
899 }
900
901
902 /******************************************************************************
903 * RegCloseKey [ADVAPI32.@]
904 *
905 * Close an open registry key.
906 *
907 * PARAMS
908 * hkey [I] Handle of key to close
909 *
910 * RETURNS
911 * Success: ERROR_SUCCESS
912 * Failure: Error code
913 */
914 LSTATUS WINAPI RegCloseKey( HKEY hkey )
915 {
916 if (!hkey) return ERROR_INVALID_HANDLE;
917 if (hkey >= (HKEY)0x80000000) return ERROR_SUCCESS;
918 return RtlNtStatusToDosError( NtClose( hkey ) );
919 }
920
921
922 /******************************************************************************
923 * RegDeleteKeyW [ADVAPI32.@]
924 *
925 * See RegDeleteKeyA.
926 */
927 LSTATUS WINAPI RegDeleteKeyW( HKEY hkey, LPCWSTR name )
928 {
929 DWORD ret;
930 HKEY tmp;
931
932 if (!name) return ERROR_INVALID_PARAMETER;
933
934 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
935
936 if (!(ret = RegOpenKeyExW( hkey, name, 0, DELETE, &tmp )))
937 {
938 ret = RtlNtStatusToDosError( NtDeleteKey( tmp ) );
939 RegCloseKey( tmp );
940 }
941 TRACE("%s ret=%08x\n", debugstr_w(name), ret);
942 return ret;
943 }
944
945
946 /******************************************************************************
947 * RegDeleteKeyA [ADVAPI32.@]
948 *
949 * Delete a registry key.
950 *
951 * PARAMS
952 * hkey [I] Handle to parent key containing the key to delete
953 * name [I] Name of the key user hkey to delete
954 *
955 * NOTES
956 *
957 * MSDN is wrong when it says that hkey must be opened with the DELETE access
958 * right. In reality, it opens a new handle with DELETE access.
959 *
960 * RETURNS
961 * Success: ERROR_SUCCESS
962 * Failure: Error code
963 */
964 LSTATUS WINAPI RegDeleteKeyA( HKEY hkey, LPCSTR name )
965 {
966 DWORD ret;
967 HKEY tmp;
968
969 if (!name) return ERROR_INVALID_PARAMETER;
970
971 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
972
973 if (!(ret = RegOpenKeyExA( hkey, name, 0, DELETE, &tmp )))
974 {
975 if (!is_version_nt()) /* win95 does recursive key deletes */
976 {
977 CHAR name[MAX_PATH];
978
979 while(!RegEnumKeyA(tmp, 0, name, sizeof(name)))
980 {
981 if(RegDeleteKeyA(tmp, name)) /* recurse */
982 break;
983 }
984 }
985 ret = RtlNtStatusToDosError( NtDeleteKey( tmp ) );
986 RegCloseKey( tmp );
987 }
988 TRACE("%s ret=%08x\n", debugstr_a(name), ret);
989 return ret;
990 }
991
992
993
994 /******************************************************************************
995 * RegSetValueExW [ADVAPI32.@]
996 *
997 * Set the data and contents of a registry value.
998 *
999 * PARAMS
1000 * hkey [I] Handle of key to set value for
1001 * name [I] Name of value to set
1002 * reserved [I] Reserved, must be zero
1003 * type [I] Type of the value being set
1004 * data [I] The new contents of the value to set
1005 * count [I] Size of data
1006 *
1007 * RETURNS
1008 * Success: ERROR_SUCCESS
1009 * Failure: Error code
1010 */
1011 LSTATUS WINAPI RegSetValueExW( HKEY hkey, LPCWSTR name, DWORD reserved,
1012 DWORD type, CONST BYTE *data, DWORD count )
1013 {
1014 UNICODE_STRING nameW;
1015
1016 /* no need for version check, not implemented on win9x anyway */
1017 if (count && is_string(type))
1018 {
1019 LPCWSTR str = (LPCWSTR)data;
1020 /* if user forgot to count terminating null, add it (yes NT does this) */
1021 if (str[count / sizeof(WCHAR) - 1] && !str[count / sizeof(WCHAR)])
1022 count += sizeof(WCHAR);
1023 }
1024 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
1025
1026 RtlInitUnicodeString( &nameW, name );
1027 return RtlNtStatusToDosError( NtSetValueKey( hkey, &nameW, 0, type, data, count ) );
1028 }
1029
1030
1031 /******************************************************************************
1032 * RegSetValueExA [ADVAPI32.@]
1033 *
1034 * See RegSetValueExW.
1035 *
1036 * NOTES
1037 * win95 does not care about count for REG_SZ and finds out the len by itself (js)
1038 * NT does definitely care (aj)
1039 */
1040 LSTATUS WINAPI RegSetValueExA( HKEY hkey, LPCSTR name, DWORD reserved, DWORD type,
1041 CONST BYTE *data, DWORD count )
1042 {
1043 ANSI_STRING nameA;
1044 WCHAR *dataW = NULL;
1045 NTSTATUS status;
1046
1047 if (!is_version_nt()) /* win95 */
1048 {
1049 if (type == REG_SZ)
1050 {
1051 if (!data) return ERROR_INVALID_PARAMETER;
1052 count = strlen((const char *)data) + 1;
1053 }
1054 }
1055 else if (count && is_string(type))
1056 {
1057 /* if user forgot to count terminating null, add it (yes NT does this) */
1058 if (data[count-1] && !data[count]) count++;
1059 }
1060
1061 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
1062
1063 if (is_string( type )) /* need to convert to Unicode */
1064 {
1065 DWORD lenW;
1066 RtlMultiByteToUnicodeSize( &lenW, (const char *)data, count );
1067 if (!(dataW = HeapAlloc( GetProcessHeap(), 0, lenW ))) return ERROR_OUTOFMEMORY;
1068 RtlMultiByteToUnicodeN( dataW, lenW, NULL, (const char *)data, count );
1069 count = lenW;
1070 data = (BYTE *)dataW;
1071 }
1072
1073 RtlInitAnsiString( &nameA, name );
1074 if (!(status = RtlAnsiStringToUnicodeString( &NtCurrentTeb()->StaticUnicodeString,
1075 &nameA, FALSE )))
1076 {
1077 status = NtSetValueKey( hkey, &NtCurrentTeb()->StaticUnicodeString, 0, type, data, count );
1078 }
1079 HeapFree( GetProcessHeap(), 0, dataW );
1080 return RtlNtStatusToDosError( status );
1081 }
1082
1083
1084 /******************************************************************************
1085 * RegSetValueW [ADVAPI32.@]
1086 *
1087 * Sets the data for the default or unnamed value of a reg key.
1088 *
1089 * PARAMS
1090 * hKey [I] Handle to an open key.
1091 * lpSubKey [I] Name of a subkey of hKey.
1092 * dwType [I] Type of information to store.
1093 * lpData [I] String that contains the data to set for the default value.
1094 * cbData [I] Ignored.
1095 *
1096 * RETURNS
1097 * Success: ERROR_SUCCESS
1098 * Failure: nonzero error code from Winerror.h
1099 */
1100 LSTATUS WINAPI RegSetValueW( HKEY hkey, LPCWSTR name, DWORD type, LPCWSTR data, DWORD count )
1101 {
1102 HKEY subkey = hkey;
1103 DWORD ret;
1104
1105 TRACE("(%p,%s,%d,%s,%d)\n", hkey, debugstr_w(name), type, debugstr_w(data), count );
1106
1107 if (type != REG_SZ || !data) return ERROR_INVALID_PARAMETER;
1108
1109 if (name && name[0]) /* need to create the subkey */
1110 {
1111 if ((ret = RegCreateKeyW( hkey, name, &subkey )) != ERROR_SUCCESS) return ret;
1112 }
1113
1114 ret = RegSetValueExW( subkey, NULL, 0, REG_SZ, (const BYTE*)data,
1115 (strlenW( data ) + 1) * sizeof(WCHAR) );
1116 if (subkey != hkey) RegCloseKey( subkey );
1117 return ret;
1118 }
1119
1120
1121 /******************************************************************************
1122 * RegSetValueA [ADVAPI32.@]
1123 *
1124 * See RegSetValueW.
1125 */
1126 LSTATUS WINAPI RegSetValueA( HKEY hkey, LPCSTR name, DWORD type, LPCSTR data, DWORD count )
1127 {
1128 HKEY subkey = hkey;
1129 DWORD ret;
1130
1131 TRACE("(%p,%s,%d,%s,%d)\n", hkey, debugstr_a(name), type, debugstr_a(data), count );
1132
1133 if (type != REG_SZ || !data) return ERROR_INVALID_PARAMETER;
1134
1135 if (name && name[0]) /* need to create the subkey */
1136 {
1137 if ((ret = RegCreateKeyA( hkey, name, &subkey )) != ERROR_SUCCESS) return ret;
1138 }
1139 ret = RegSetValueExA( subkey, NULL, 0, REG_SZ, (const BYTE*)data, strlen(data)+1 );
1140 if (subkey != hkey) RegCloseKey( subkey );
1141 return ret;
1142 }
1143
1144
1145
1146 /******************************************************************************
1147 * RegQueryValueExW [ADVAPI32.@]
1148 *
1149 * See RegQueryValueExA.
1150 */
1151 LSTATUS WINAPI RegQueryValueExW( HKEY hkey, LPCWSTR name, LPDWORD reserved, LPDWORD type,
1152 LPBYTE data, LPDWORD count )
1153 {
1154 NTSTATUS status;
1155 UNICODE_STRING name_str;
1156 DWORD total_size;
1157 char buffer[256], *buf_ptr = buffer;
1158 KEY_VALUE_PARTIAL_INFORMATION *info = (KEY_VALUE_PARTIAL_INFORMATION *)buffer;
1159 static const int info_size = offsetof( KEY_VALUE_PARTIAL_INFORMATION, Data );
1160
1161 TRACE("(%p,%s,%p,%p,%p,%p=%d)\n",
1162 hkey, debugstr_w(name), reserved, type, data, count,
1163 (count && data) ? *count : 0 );
1164
1165 if ((data && !count) || reserved) return ERROR_INVALID_PARAMETER;
1166 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
1167
1168 RtlInitUnicodeString( &name_str, name );
1169
1170 if (data) total_size = min( sizeof(buffer), *count + info_size );
1171 else
1172 {
1173 total_size = info_size;
1174 if (count) *count = 0;
1175 }
1176
1177 status = NtQueryValueKey( hkey, &name_str, KeyValuePartialInformation,
1178 buffer, total_size, &total_size );
1179 if (status && status != STATUS_BUFFER_OVERFLOW) goto done;
1180
1181 if (data)
1182 {
1183 /* retry with a dynamically allocated buffer */
1184 while (status == STATUS_BUFFER_OVERFLOW && total_size - info_size <= *count)
1185 {
1186 if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
1187 if (!(buf_ptr = HeapAlloc( GetProcessHeap(), 0, total_size )))
1188 return ERROR_NOT_ENOUGH_MEMORY;
1189 info = (KEY_VALUE_PARTIAL_INFORMATION *)buf_ptr;
1190 status = NtQueryValueKey( hkey, &name_str, KeyValuePartialInformation,
1191 buf_ptr, total_size, &total_size );
1192 }
1193
1194 if (!status)
1195 {
1196 memcpy( data, buf_ptr + info_size, total_size - info_size );
1197 /* if the type is REG_SZ and data is not 0-terminated
1198 * and there is enough space in the buffer NT appends a \0 */
1199 if (total_size - info_size <= *count-sizeof(WCHAR) && is_string(info->Type))
1200 {
1201 WCHAR *ptr = (WCHAR *)(data + total_size - info_size);
1202 if (ptr > (WCHAR *)data && ptr[-1]) *ptr = 0;
1203 }
1204 }
1205 else if (status != STATUS_BUFFER_OVERFLOW) goto done;
1206 }
1207 else status = STATUS_SUCCESS;
1208
1209 if (type) *type = info->Type;
1210 if (count) *count = total_size - info_size;
1211
1212 done:
1213 if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
1214 return RtlNtStatusToDosError(status);
1215 }
1216
1217
1218 /******************************************************************************
1219 * RegQueryValueExA [ADVAPI32.@]
1220 *
1221 * Get the type and contents of a specified value under with a key.
1222 *
1223 * PARAMS
1224 * hkey [I] Handle of the key to query
1225 * name [I] Name of value under hkey to query
1226 * reserved [I] Reserved - must be NULL
1227 * type [O] Destination for the value type, or NULL if not required
1228 * data [O] Destination for the values contents, or NULL if not required
1229 * count [I/O] Size of data, updated with the number of bytes returned
1230 *
1231 * RETURNS
1232 * Success: ERROR_SUCCESS. *count is updated with the number of bytes copied to data.
1233 * Failure: ERROR_INVALID_HANDLE, if hkey is invalid.
1234 * ERROR_INVALID_PARAMETER, if any other parameter is invalid.
1235 * ERROR_MORE_DATA, if on input *count is too small to hold the contents.
1236 *
1237 * NOTES
1238 * MSDN states that if data is too small it is partially filled. In reality
1239 * it remains untouched.
1240 */
1241 LSTATUS WINAPI RegQueryValueExA( HKEY hkey, LPCSTR name, LPDWORD reserved, LPDWORD type,
1242 LPBYTE data, LPDWORD count )
1243 {
1244 NTSTATUS status;
1245 ANSI_STRING nameA;
1246 DWORD total_size, datalen = 0;
1247 char buffer[256], *buf_ptr = buffer;
1248 KEY_VALUE_PARTIAL_INFORMATION *info = (KEY_VALUE_PARTIAL_INFORMATION *)buffer;
1249 static const int info_size = offsetof( KEY_VALUE_PARTIAL_INFORMATION, Data );
1250
1251 TRACE("(%p,%s,%p,%p,%p,%p=%d)\n",
1252 hkey, debugstr_a(name), reserved, type, data, count, count ? *count : 0 );
1253
1254 if ((data && !count) || reserved) return ERROR_INVALID_PARAMETER;
1255 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
1256
1257 if (count) datalen = *count;
1258 if (!data && count) *count = 0;
1259
1260 /* this matches Win9x behaviour - NT sets *type to a random value */
1261 if (type) *type = REG_NONE;
1262
1263 RtlInitAnsiString( &nameA, name );
1264 if ((status = RtlAnsiStringToUnicodeString( &NtCurrentTeb()->StaticUnicodeString,
1265 &nameA, FALSE )))
1266 return RtlNtStatusToDosError(status);
1267
1268 status = NtQueryValueKey( hkey, &NtCurrentTeb()->StaticUnicodeString,
1269 KeyValuePartialInformation, buffer, sizeof(buffer), &total_size );
1270 if (status && status != STATUS_BUFFER_OVERFLOW) goto done;
1271
1272 /* we need to fetch the contents for a string type even if not requested,
1273 * because we need to compute the length of the ASCII string. */
1274 if (data || is_string(info->Type))
1275 {
1276 /* retry with a dynamically allocated buffer */
1277 while (status == STATUS_BUFFER_OVERFLOW)
1278 {
1279 if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
1280 if (!(buf_ptr = HeapAlloc( GetProcessHeap(), 0, total_size )))
1281 {
1282 status = STATUS_NO_MEMORY;
1283 goto done;
1284 }
1285 info = (KEY_VALUE_PARTIAL_INFORMATION *)buf_ptr;
1286 status = NtQueryValueKey( hkey, &NtCurrentTeb()->StaticUnicodeString,
1287 KeyValuePartialInformation, buf_ptr, total_size, &total_size );
1288 }
1289
1290 if (status) goto done;
1291
1292 if (is_string(info->Type))
1293 {
1294 DWORD len;
1295
1296 RtlUnicodeToMultiByteSize( &len, (WCHAR *)(buf_ptr + info_size),
1297 total_size - info_size );
1298 if (data && len)
1299 {
1300 if (len > datalen) status = STATUS_BUFFER_OVERFLOW;
1301 else
1302 {
1303 RtlUnicodeToMultiByteN( (char*)data, len, NULL, (WCHAR *)(buf_ptr + info_size),
1304 total_size - info_size );
1305 /* if the type is REG_SZ and data is not 0-terminated
1306 * and there is enough space in the buffer NT appends a \0 */
1307 if (len < datalen && data[len-1]) data[len] = 0;
1308 }
1309 }
1310 total_size = len + info_size;
1311 }
1312 else if (data)
1313 {
1314 if (total_size - info_size > datalen) status = STATUS_BUFFER_OVERFLOW;
1315 else memcpy( data, buf_ptr + info_size, total_size - info_size );
1316 }
1317 }
1318 else status = STATUS_SUCCESS;
1319
1320 if (type) *type = info->Type;
1321 if (count) *count = total_size - info_size;
1322
1323 done:
1324 if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
1325 return RtlNtStatusToDosError(status);
1326 }
1327
1328
1329 /******************************************************************************
1330 * RegQueryValueW [ADVAPI32.@]
1331 *
1332 * Retrieves the data associated with the default or unnamed value of a key.
1333 *
1334 * PARAMS
1335 * hkey [I] Handle to an open key.
1336 * name [I] Name of the subkey of hKey.
1337 * data [O] Receives the string associated with the default value
1338 * of the key.
1339 * count [I/O] Size of lpValue in bytes.
1340 *
1341 * RETURNS
1342 * Success: ERROR_SUCCESS
1343 * Failure: nonzero error code from Winerror.h
1344 */
1345 LSTATUS WINAPI RegQueryValueW( HKEY hkey, LPCWSTR name, LPWSTR data, LPLONG count )
1346 {
1347 DWORD ret;
1348 HKEY subkey = hkey;
1349
1350 TRACE("(%p,%s,%p,%d)\n", hkey, debugstr_w(name), data, count ? *count : 0 );
1351
1352 if (name && name[0])
1353 {
1354 if ((ret = RegOpenKeyW( hkey, name, &subkey )) != ERROR_SUCCESS) return ret;
1355 }
1356 ret = RegQueryValueExW( subkey, NULL, NULL, NULL, (LPBYTE)data, (LPDWORD)count );
1357 if (subkey != hkey) RegCloseKey( subkey );
1358 if (ret == ERROR_FILE_NOT_FOUND)
1359 {
1360 /* return empty string if default value not found */
1361 if (data) *data = 0;
1362 if (count) *count = sizeof(WCHAR);
1363 ret = ERROR_SUCCESS;
1364 }
1365 return ret;
1366 }
1367
1368
1369 /******************************************************************************
1370 * RegQueryValueA [ADVAPI32.@]
1371 *
1372 * See RegQueryValueW.
1373 */
1374 LSTATUS WINAPI RegQueryValueA( HKEY hkey, LPCSTR name, LPSTR data, LPLONG count )
1375 {
1376 DWORD ret;
1377 HKEY subkey = hkey;
1378
1379 TRACE("(%p,%s,%p,%d)\n", hkey, debugstr_a(name), data, count ? *count : 0 );
1380
1381 if (name && name[0])
1382 {
1383 if ((ret = RegOpenKeyA( hkey, name, &subkey )) != ERROR_SUCCESS) return ret;
1384 }
1385 ret = RegQueryValueExA( subkey, NULL, NULL, NULL, (LPBYTE)data, (LPDWORD)count );
1386 if (subkey != hkey) RegCloseKey( subkey );
1387 if (ret == ERROR_FILE_NOT_FOUND)
1388 {
1389 /* return empty string if default value not found */
1390 if (data) *data = 0;
1391 if (count) *count = 1;
1392 ret = ERROR_SUCCESS;
1393 }
1394 return ret;
1395 }
1396
1397
1398 /******************************************************************************
1399 * ADVAPI_ApplyRestrictions [internal]
1400 *
1401 * Helper function for RegGetValueA/W.
1402 */
1403 static VOID ADVAPI_ApplyRestrictions( DWORD dwFlags, DWORD dwType,
1404 DWORD cbData, PLONG ret )
1405 {
1406 /* Check if the type is restricted by the passed flags */
1407 if (*ret == ERROR_SUCCESS || *ret == ERROR_MORE_DATA)
1408 {
1409 DWORD dwMask = 0;
1410
1411 switch (dwType)
1412 {
1413 case REG_NONE: dwMask = RRF_RT_REG_NONE; break;
1414 case REG_SZ: dwMask = RRF_RT_REG_SZ; break;
1415 case REG_EXPAND_SZ: dwMask = RRF_RT_REG_EXPAND_SZ; break;
1416 case REG_MULTI_SZ: dwMask = RRF_RT_REG_MULTI_SZ; break;
1417 case REG_BINARY: dwMask = RRF_RT_REG_BINARY; break;
1418 case REG_DWORD: dwMask = RRF_RT_REG_DWORD; break;
1419 case REG_QWORD: dwMask = RRF_RT_REG_QWORD; break;
1420 }
1421
1422 if (dwFlags & dwMask)
1423 {
1424 /* Type is not restricted, check for size mismatch */
1425 if (dwType == REG_BINARY)
1426 {
1427 DWORD cbExpect = 0;
1428
1429 if ((dwFlags & RRF_RT_DWORD) == RRF_RT_DWORD)
1430 cbExpect = 4;
1431 else if ((dwFlags & RRF_RT_QWORD) == RRF_RT_QWORD)
1432 cbExpect = 8;
1433
1434 if (cbExpect && cbData != cbExpect)
1435 *ret = ERROR_DATATYPE_MISMATCH;
1436 }
1437 }
1438 else *ret = ERROR_UNSUPPORTED_TYPE;
1439 }
1440 }
1441
1442
1443 /******************************************************************************
1444 * RegGetValueW [ADVAPI32.@]
1445 *
1446 * Retrieves the type and data for a value name associated with a key,
1447 * optionally expanding its content and restricting its type.
1448 *
1449 * PARAMS
1450 * hKey [I] Handle to an open key.
1451 * pszSubKey [I] Name of the subkey of hKey.
1452 * pszValue [I] Name of value under hKey/szSubKey to query.
1453 * dwFlags [I] Flags restricting the value type to retrieve.
1454 * pdwType [O] Destination for the values type, may be NULL.
1455 * pvData [O] Destination for the values content, may be NULL.
1456 * pcbData [I/O] Size of pvData, updated with the size in bytes required to
1457 * retrieve the whole content, including the trailing '\0'
1458 * for strings.
1459 *
1460 * RETURNS
1461 * Success: ERROR_SUCCESS
1462 * Failure: nonzero error code from Winerror.h
1463 *
1464 * NOTES
1465 * - Unless RRF_NOEXPAND is specified, REG_EXPAND_SZ values are automatically
1466 * expanded and pdwType is set to REG_SZ instead.
1467 * - Restrictions are applied after expanding, using RRF_RT_REG_EXPAND_SZ
1468 * without RRF_NOEXPAND is thus not allowed.
1469 * An exception is the case where RRF_RT_ANY is specified, because then
1470 * RRF_NOEXPAND is allowed.
1471 */
1472 LSTATUS WINAPI RegGetValueW( HKEY hKey, LPCWSTR pszSubKey, LPCWSTR pszValue,
1473 DWORD dwFlags, LPDWORD pdwType, PVOID pvData,
1474 LPDWORD pcbData )
1475 {
1476 DWORD dwType, cbData = pcbData ? *pcbData : 0;
1477 PVOID pvBuf = NULL;
1478 LONG ret;
1479
1480 TRACE("(%p,%s,%s,%d,%p,%p,%p=%d)\n",
1481 hKey, debugstr_w(pszSubKey), debugstr_w(pszValue), dwFlags, pdwType,
1482 pvData, pcbData, cbData);
1483
1484 if (pvData && !pcbData)
1485 return ERROR_INVALID_PARAMETER;
1486 if ((dwFlags & RRF_RT_REG_EXPAND_SZ) && !(dwFlags & RRF_NOEXPAND) &&
1487 ((dwFlags & RRF_RT_ANY) != RRF_RT_ANY))
1488 return ERROR_INVALID_PARAMETER;
1489
1490 if (pszSubKey && pszSubKey[0])
1491 {
1492 ret = RegOpenKeyExW(hKey, pszSubKey, 0, KEY_QUERY_VALUE, &hKey);
1493 if (ret != ERROR_SUCCESS) return ret;
1494 }
1495
1496 ret = RegQueryValueExW(hKey, pszValue, NULL, &dwType, pvData, &cbData);
1497
1498 /* If we are going to expand we need to read in the whole the value even
1499 * if the passed buffer was too small as the expanded string might be
1500 * smaller than the unexpanded one and could fit into cbData bytes. */
1501 if ((ret == ERROR_SUCCESS || ret == ERROR_MORE_DATA) &&
1502 dwType == REG_EXPAND_SZ && !(dwFlags & RRF_NOEXPAND))
1503 {
1504 do {
1505 HeapFree(GetProcessHeap(), 0, pvBuf);
1506
1507 pvBuf = HeapAlloc(GetProcessHeap(), 0, cbData);
1508 if (!pvBuf)
1509 {
1510 ret = ERROR_NOT_ENOUGH_MEMORY;
1511 break;
1512 }
1513
1514 if (ret == ERROR_MORE_DATA || !pvData)
1515 ret = RegQueryValueExW(hKey, pszValue, NULL,
1516 &dwType, pvBuf, &cbData);
1517 else
1518 {
1519 /* Even if cbData was large enough we have to copy the
1520 * string since ExpandEnvironmentStrings can't handle
1521 * overlapping buffers. */
1522 CopyMemory(pvBuf, pvData, cbData);
1523 }
1524
1525 /* Both the type or the value itself could have been modified in
1526 * between so we have to keep retrying until the buffer is large
1527 * enough or we no longer have to expand the value. */
1528 } while (dwType == REG_EXPAND_SZ && ret == ERROR_MORE_DATA);
1529
1530 if (ret == ERROR_SUCCESS)
1531 {
1532 /* Recheck dwType in case it changed since the first call */
1533 if (dwType == REG_EXPAND_SZ)
1534 {
1535 cbData = ExpandEnvironmentStringsW(pvBuf, pvData,
1536 pcbData ? *pcbData : 0) * sizeof(WCHAR);
1537 dwType = REG_SZ;
1538 if(pvData && pcbData && cbData > *pcbData)
1539 ret = ERROR_MORE_DATA;
1540 }
1541 else if (pvData)
1542 CopyMemory(pvData, pvBuf, *pcbData);
1543 }
1544
1545 HeapFree(GetProcessHeap(), 0, pvBuf);
1546 }
1547
1548 if (pszSubKey && pszSubKey[0])
1549 RegCloseKey(hKey);
1550
1551 ADVAPI_ApplyRestrictions(dwFlags, dwType, cbData, &ret);
1552
1553 if (pvData && ret != ERROR_SUCCESS && (dwFlags & RRF_ZEROONFAILURE))
1554 ZeroMemory(pvData, *pcbData);
1555
1556 if (pdwType) *pdwType = dwType;
1557 if (pcbData) *pcbData = cbData;
1558
1559 return ret;
1560 }
1561
1562
1563 /******************************************************************************
1564 * RegGetValueA [ADVAPI32.@]
1565 *
1566 * See RegGetValueW.
1567 */
1568 LSTATUS WINAPI RegGetValueA( HKEY hKey, LPCSTR pszSubKey, LPCSTR pszValue,
1569 DWORD dwFlags, LPDWORD pdwType, PVOID pvData,
1570 LPDWORD pcbData )
1571 {
1572 DWORD dwType, cbData = pcbData ? *pcbData : 0;
1573 PVOID pvBuf = NULL;
1574 LONG ret;
1575
1576 TRACE("(%p,%s,%s,%d,%p,%p,%p=%d)\n",
1577 hKey, pszSubKey, pszValue, dwFlags, pdwType, pvData, pcbData,
1578 cbData);
1579
1580 if (pvData && !pcbData)
1581 return ERROR_INVALID_PARAMETER;
1582 if ((dwFlags & RRF_RT_REG_EXPAND_SZ) && !(dwFlags & RRF_NOEXPAND) &&
1583 ((dwFlags & RRF_RT_ANY) != RRF_RT_ANY))
1584 return ERROR_INVALID_PARAMETER;
1585
1586 if (pszSubKey && pszSubKey[0])
1587 {
1588 ret = RegOpenKeyExA(hKey, pszSubKey, 0, KEY_QUERY_VALUE, &hKey);
1589 if (ret != ERROR_SUCCESS) return ret;
1590 }
1591
1592 ret = RegQueryValueExA(hKey, pszValue, NULL, &dwType, pvData, &cbData);
1593
1594 /* If we are going to expand we need to read in the whole the value even
1595 * if the passed buffer was too small as the expanded string might be
1596 * smaller than the unexpanded one and could fit into cbData bytes. */
1597 if ((ret == ERROR_SUCCESS || ret == ERROR_MORE_DATA) &&
1598 dwType == REG_EXPAND_SZ && !(dwFlags & RRF_NOEXPAND))
1599 {
1600 do {
1601 HeapFree(GetProcessHeap(), 0, pvBuf);
1602
1603 pvBuf = HeapAlloc(GetProcessHeap(), 0, cbData);
1604 if (!pvBuf)
1605 {
1606 ret = ERROR_NOT_ENOUGH_MEMORY;
1607 break;
1608 }
1609
1610 if (ret == ERROR_MORE_DATA || !pvData)
1611 ret = RegQueryValueExA(hKey, pszValue, NULL,
1612 &dwType, pvBuf, &cbData);
1613 else
1614 {
1615 /* Even if cbData was large enough we have to copy the
1616 * string since ExpandEnvironmentStrings can't handle
1617 * overlapping buffers. */
1618 CopyMemory(pvBuf, pvData, cbData);
1619 }
1620
1621 /* Both the type or the value itself could have been modified in
1622 * between so we have to keep retrying until the buffer is large
1623 * enough or we no longer have to expand the value. */
1624 } while (dwType == REG_EXPAND_SZ && ret == ERROR_MORE_DATA);
1625
1626 if (ret == ERROR_SUCCESS)
1627 {
1628 /* Recheck dwType in case it changed since the first call */
1629 if (dwType == REG_EXPAND_SZ)
1630 {
1631 cbData = ExpandEnvironmentStringsA(pvBuf, pvData,
1632 pcbData ? *pcbData : 0);
1633 dwType = REG_SZ;
1634 if(pvData && pcbData && cbData > *pcbData)
1635 ret = ERROR_MORE_DATA;
1636 }
1637 else if (pvData)
1638 CopyMemory(pvData, pvBuf, *pcbData);
1639 }
1640
1641 HeapFree(GetProcessHeap(), 0, pvBuf);
1642 }
1643
1644 if (pszSubKey && pszSubKey[0])
1645 RegCloseKey(hKey);
1646
1647 ADVAPI_ApplyRestrictions(dwFlags, dwType, cbData, &ret);
1648
1649 if (pvData && ret != ERROR_SUCCESS && (dwFlags & RRF_ZEROONFAILURE))
1650 ZeroMemory(pvData, *pcbData);
1651
1652 if (pdwType) *pdwType = dwType;
1653 if (pcbData) *pcbData = cbData;
1654
1655 return ret;
1656 }
1657
1658
1659 /******************************************************************************
1660 * RegEnumValueW [ADVAPI32.@]
1661 *
1662 * Enumerates the values for the specified open registry key.
1663 *
1664 * PARAMS
1665 * hkey [I] Handle to key to query
1666 * index [I] Index of value to query
1667 * value [O] Value string
1668 * val_count [I/O] Size of value buffer (in wchars)
1669 * reserved [I] Reserved
1670 * type [O] Type code
1671 * data [O] Value data
1672 * count [I/O] Size of data buffer (in bytes)
1673 *
1674 * RETURNS
1675 * Success: ERROR_SUCCESS
1676 * Failure: nonzero error code from Winerror.h
1677 */
1678
1679 LSTATUS WINAPI RegEnumValueW( HKEY hkey, DWORD index, LPWSTR value, LPDWORD val_count,
1680 LPDWORD reserved, LPDWORD type, LPBYTE data, LPDWORD count )
1681 {
1682 NTSTATUS status;
1683 DWORD total_size;
1684 char buffer[256], *buf_ptr = buffer;
1685 KEY_VALUE_FULL_INFORMATION *info = (KEY_VALUE_FULL_INFORMATION *)buffer;
1686 static const int info_size = offsetof( KEY_VALUE_FULL_INFORMATION, Name );
1687
1688 TRACE("(%p,%d,%p,%p,%p,%p,%p,%p)\n",
1689 hkey, index, value, val_count, reserved, type, data, count );
1690
1691 /* NT only checks count, not val_count */
1692 if ((data && !count) || reserved) return ERROR_INVALID_PARAMETER;
1693 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
1694
1695 total_size = info_size + (MAX_PATH + 1) * sizeof(WCHAR);
1696 if (data) total_size += *count;
1697 total_size = min( sizeof(buffer), total_size );
1698
1699 status = NtEnumerateValueKey( hkey, index, KeyValueFullInformation,
1700 buffer, total_size, &total_size );
1701 if (status && status != STATUS_BUFFER_OVERFLOW) goto done;
1702
1703 if (value || data)
1704 {
1705 /* retry with a dynamically allocated buffer */
1706 while (status == STATUS_BUFFER_OVERFLOW)
1707 {
1708 if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
1709 if (!(buf_ptr = HeapAlloc( GetProcessHeap(), 0, total_size )))
1710 return ERROR_NOT_ENOUGH_MEMORY;
1711 info = (KEY_VALUE_FULL_INFORMATION *)buf_ptr;
1712 status = NtEnumerateValueKey( hkey, index, KeyValueFullInformation,
1713 buf_ptr, total_size, &total_size );
1714 }
1715
1716 if (status) goto done;
1717
1718 if (value)
1719 {
1720 if (info->NameLength/sizeof(WCHAR) >= *val_count)
1721 {
1722 status = STATUS_BUFFER_OVERFLOW;
1723 goto overflow;
1724 }
1725 memcpy( value, info->Name, info->NameLength );
1726 *val_count = info->NameLength / sizeof(WCHAR);
1727 value[*val_count] = 0;
1728 }
1729
1730 if (data)
1731 {
1732 if (total_size - info->DataOffset > *count)
1733 {
1734 status = STATUS_BUFFER_OVERFLOW;
1735 goto overflow;
1736 }
1737 memcpy( data, buf_ptr + info->DataOffset, total_size - info->DataOffset );
1738 if (total_size - info->DataOffset <= *count-sizeof(WCHAR) && is_string(info->Type))
1739 {
1740 /* if the type is REG_SZ and data is not 0-terminated
1741 * and there is enough space in the buffer NT appends a \0 */
1742 WCHAR *ptr = (WCHAR *)(data + total_size - info->DataOffset);
1743 if (ptr > (WCHAR *)data && ptr[-1]) *ptr = 0;
1744 }
1745 }
1746 }
1747 else status = STATUS_SUCCESS;
1748
1749 overflow:
1750 if (type) *type = info->Type;
1751 if (count) *count = info->DataLength;
1752
1753 done:
1754 if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
1755 return RtlNtStatusToDosError(status);
1756 }
1757
1758
1759 /******************************************************************************
1760 * RegEnumValueA [ADVAPI32.@]
1761 *
1762 * See RegEnumValueW.
1763 */
1764 LSTATUS WINAPI RegEnumValueA( HKEY hkey, DWORD index, LPSTR value, LPDWORD val_count,
1765 LPDWORD reserved, LPDWORD type, LPBYTE data, LPDWORD count )
1766 {
1767 NTSTATUS status;
1768 DWORD total_size;
1769 char buffer[256], *buf_ptr = buffer;
1770 KEY_VALUE_FULL_INFORMATION *info = (KEY_VALUE_FULL_INFORMATION *)buffer;
1771 static const int info_size = offsetof( KEY_VALUE_FULL_INFORMATION, Name );
1772
1773 TRACE("(%p,%d,%p,%p,%p,%p,%p,%p)\n",
1774 hkey, index, value, val_count, reserved, type, data, count );
1775
1776 /* NT only checks count, not val_count */
1777 if ((data && !count) || reserved) return ERROR_INVALID_PARAMETER;
1778 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
1779
1780 total_size = info_size + (MAX_PATH + 1) * sizeof(WCHAR);
1781 if (data) total_size += *count;
1782 total_size = min( sizeof(buffer), total_size );
1783
1784 status = NtEnumerateValueKey( hkey, index, KeyValueFullInformation,
1785 buffer, total_size, &total_size );
1786 if (status && status != STATUS_BUFFER_OVERFLOW) goto done;
1787
1788 /* we need to fetch the contents for a string type even if not requested,
1789 * because we need to compute the length of the ASCII string. */
1790 if (value || data || is_string(info->Type))
1791 {
1792 /* retry with a dynamically allocated buffer */
1793 while (status == STATUS_BUFFER_OVERFLOW)
1794 {
1795 if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
1796 if (!(buf_ptr = HeapAlloc( GetProcessHeap(), 0, total_size )))
1797 return ERROR_NOT_ENOUGH_MEMORY;
1798 info = (KEY_VALUE_FULL_INFORMATION *)buf_ptr;
1799 status = NtEnumerateValueKey( hkey, index, KeyValueFullInformation,
1800 buf_ptr, total_size, &total_size );
1801 }
1802
1803 if (status) goto done;
1804
1805 if (is_string(info->Type))
1806 {
1807 DWORD len;
1808 RtlUnicodeToMultiByteSize( &len, (WCHAR *)(buf_ptr + info->DataOffset),
1809 total_size - info->DataOffset );
1810 if (data && len)
1811 {
1812 if (len > *count) status = STATUS_BUFFER_OVERFLOW;
1813 else
1814 {
1815 RtlUnicodeToMultiByteN( (char*)data, len, NULL, (WCHAR *)(buf_ptr + info->DataOffset),
1816 total_size - info->DataOffset );
1817 /* if the type is REG_SZ and data is not 0-terminated
1818 * and there is enough space in the buffer NT appends a \0 */
1819 if (len < *count && data[len-1]) data[len] = 0;
1820 }
1821 }
1822 info->DataLength = len;
1823 }
1824 else if (data)
1825 {
1826 if (total_size - info->DataOffset > *count) status = STATUS_BUFFER_OVERFLOW;
1827 else memcpy( data, buf_ptr + info->DataOffset, total_size - info->DataOffset );
1828 }
1829
1830 if (value && !status)
1831 {
1832 DWORD len;
1833
1834 RtlUnicodeToMultiByteSize( &len, info->Name, info->NameLength );
1835 if (len >= *val_count)
1836 {
1837 status = STATUS_BUFFER_OVERFLOW;
1838 if (*val_count)
1839 {
1840 len = *val_count - 1;
1841 RtlUnicodeToMultiByteN( value, len, NULL, info->Name, info->NameLength );
1842 value[len] = 0;
1843 }
1844 }
1845 else
1846 {
1847 RtlUnicodeToMultiByteN( value, len, NULL, info->Name, info->NameLength );
1848 value[len] = 0;
1849 *val_count = len;
1850 }
1851 }
1852 }
1853 else status = STATUS_SUCCESS;
1854
1855 if (type) *type = info->Type;
1856 if (count) *count = info->DataLength;
1857
1858 done:
1859 if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
1860 return RtlNtStatusToDosError(status);
1861 }
1862
1863
1864
1865 /******************************************************************************
1866 * RegDeleteValueW [ADVAPI32.@]
1867 *
1868 * See RegDeleteValueA.
1869 */
1870 LSTATUS WINAPI RegDeleteValueW( HKEY hkey, LPCWSTR name )
1871 {
1872 UNICODE_STRING nameW;
1873
1874 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
1875
1876 RtlInitUnicodeString( &nameW, name );
1877 return RtlNtStatusToDosError( NtDeleteValueKey( hkey, &nameW ) );
1878 }
1879
1880
1881 /******************************************************************************
1882 * RegDeleteValueA [ADVAPI32.@]
1883 *
1884 * Delete a value from the registry.
1885 *
1886 * PARAMS
1887 * hkey [I] Registry handle of the key holding the value
1888 * name [I] Name of the value under hkey to delete
1889 *
1890 * RETURNS
1891 * Success: ERROR_SUCCESS
1892 * Failure: nonzero error code from Winerror.h
1893 */
1894 LSTATUS WINAPI RegDeleteValueA( HKEY hkey, LPCSTR name )
1895 {
1896 STRING nameA;
1897 NTSTATUS status;
1898
1899 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
1900
1901 RtlInitAnsiString( &nameA, name );
1902 if (!(status = RtlAnsiStringToUnicodeString( &NtCurrentTeb()->StaticUnicodeString,
1903 &nameA, FALSE )))
1904 status = NtDeleteValueKey( hkey, &NtCurrentTeb()->StaticUnicodeString );
1905 return RtlNtStatusToDosError( status );
1906 }
1907
1908
1909 /******************************************************************************
1910 * RegLoadKeyW [ADVAPI32.@]
1911 *
1912 * Create a subkey under HKEY_USERS or HKEY_LOCAL_MACHINE and store
1913 * registration information from a specified file into that subkey.
1914 *
1915 * PARAMS
1916 * hkey [I] Handle of open key
1917 * subkey [I] Address of name of subkey
1918 * filename [I] Address of filename for registry information
1919 *
1920 * RETURNS
1921 * Success: ERROR_SUCCESS
1922 * Failure: nonzero error code from Winerror.h
1923 */
1924 LSTATUS WINAPI RegLoadKeyW( HKEY hkey, LPCWSTR subkey, LPCWSTR filename )
1925 {
1926 OBJECT_ATTRIBUTES destkey, file;
1927 UNICODE_STRING subkeyW, filenameW;
1928 NTSTATUS status;
1929
1930 if (!(hkey = get_special_root_hkey(hkey))) return ERROR_INVALID_HANDLE;
1931
1932 destkey.Length = sizeof(destkey);
1933 destkey.RootDirectory = hkey; /* root key: HKLM or HKU */
1934 destkey.ObjectName = &subkeyW; /* name of the key */
1935 destkey.Attributes = 0;
1936 destkey.SecurityDescriptor = NULL;
1937 destkey.SecurityQualityOfService = NULL;
1938 RtlInitUnicodeString(&subkeyW, subkey);
1939
1940 file.Length = sizeof(file);
1941 file.RootDirectory = NULL;
1942 file.ObjectName = &filenameW; /* file containing the hive */
1943 file.Attributes = OBJ_CASE_INSENSITIVE;
1944 file.SecurityDescriptor = NULL;
1945 file.SecurityQualityOfService = NULL;
1946 RtlDosPathNameToNtPathName_U(filename, &filenameW, NULL, NULL);
1947
1948 status = NtLoadKey(&destkey, &file);
1949 RtlFreeUnicodeString(&filenameW);
1950 return RtlNtStatusToDosError( status );
1951 }
1952
1953
1954 /******************************************************************************
1955 * RegLoadKeyA [ADVAPI32.@]
1956 *
1957 * See RegLoadKeyW.
1958 */
1959 LSTATUS WINAPI RegLoadKeyA( HKEY hkey, LPCSTR subkey, LPCSTR filename )
1960 {
1961 UNICODE_STRING subkeyW, filenameW;
1962 STRING subkeyA, filenameA;
1963 NTSTATUS status;
1964 LONG ret;
1965
1966 RtlInitAnsiString(&subkeyA, subkey);
1967 RtlInitAnsiString(&filenameA, filename);
1968
1969 RtlInitUnicodeString(&subkeyW, NULL);
1970 RtlInitUnicodeString(&filenameW, NULL);
1971 if (!(status = RtlAnsiStringToUnicodeString(&subkeyW, &subkeyA, TRUE)) &&
1972 !(status = RtlAnsiStringToUnicodeString(&filenameW, &filenameA, TRUE)))
1973 {
1974 ret = RegLoadKeyW(hkey, subkeyW.Buffer, filenameW.Buffer);
1975 }
1976 else ret = RtlNtStatusToDosError(status);
1977 RtlFreeUnicodeString(&subkeyW);
1978 RtlFreeUnicodeString(&filenameW);
1979 return ret;
1980 }
1981
1982
1983 /******************************************************************************
1984 * RegSaveKeyW [ADVAPI32.@]
1985 *
1986 * Save a key and all of its subkeys and values to a new file in the standard format.
1987 *
1988 * PARAMS
1989 * hkey [I] Handle of key where save begins
1990 * lpFile [I] Address of filename to save to
1991 * sa [I] Address of security structure
1992 *
1993 * RETURNS
1994 * Success: ERROR_SUCCESS
1995 * Failure: nonzero error code from Winerror.h
1996 */
1997 LSTATUS WINAPI RegSaveKeyW( HKEY hkey, LPCWSTR file, LPSECURITY_ATTRIBUTES sa )
1998 {
1999 static const WCHAR format[] =
2000 {'r','e','g','%','0','4','x','.','t','m','p',0};
2001 WCHAR buffer[MAX_PATH];
2002 int count = 0;
2003 LPWSTR nameW;
2004 DWORD ret, err;
2005 HANDLE handle;
2006
2007 TRACE( "(%p,%s,%p)\n", hkey, debugstr_w(file), sa );
2008
2009 if (!file || !*file) return ERROR_INVALID_PARAMETER;
2010 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
2011
2012 err = GetLastError();
2013 GetFullPathNameW( file, sizeof(buffer)/sizeof(WCHAR), buffer, &nameW );
2014
2015 for (;;)
2016 {
2017 snprintfW( nameW, 16, format, count++ );
2018 handle = CreateFileW( buffer, GENERIC_WRITE, 0, NULL,
2019 CREATE_NEW, FILE_ATTRIBUTE_NORMAL, 0 );
2020 if (handle != INVALID_HANDLE_VALUE) break;
2021 if ((ret = GetLastError()) != ERROR_FILE_EXISTS) goto done;
2022
2023 /* Something gone haywire ? Please report if this happens abnormally */
2024 if (count >= 100)
2025 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);
2026 }
2027
2028 ret = RtlNtStatusToDosError(NtSaveKey(hkey, handle));
2029
2030 CloseHandle( handle );
2031 if (!ret)
2032 {
2033 if (!MoveFileExW( buffer, file, MOVEFILE_REPLACE_EXISTING ))
2034 {
2035 ERR( "Failed to move %s to %s\n", debugstr_w(buffer),
2036 debugstr_w(file) );
2037 ret = GetLastError();
2038 }
2039 }
2040 if (ret) DeleteFileW( buffer );
2041
2042 done:
2043 SetLastError( err ); /* restore last error code */
2044 return ret;
2045 }
2046
2047
2048 /******************************************************************************
2049 * RegSaveKeyA [ADVAPI32.@]
2050 *
2051 * See RegSaveKeyW.
2052 */
2053 LSTATUS WINAPI RegSaveKeyA( HKEY hkey, LPCSTR file, LPSECURITY_ATTRIBUTES sa )
2054 {
2055 UNICODE_STRING *fileW = &NtCurrentTeb()->StaticUnicodeString;
2056 NTSTATUS status;
2057 STRING fileA;
2058
2059 RtlInitAnsiString(&fileA, file);
2060 if ((status = RtlAnsiStringToUnicodeString(fileW, &fileA, FALSE)))
2061 return RtlNtStatusToDosError( status );
2062 return RegSaveKeyW(hkey, fileW->Buffer, sa);
2063 }
2064
2065
2066 /******************************************************************************
2067 * RegRestoreKeyW [ADVAPI32.@]
2068 *
2069 * Read the registry information from a file and copy it over a key.
2070 *
2071 * PARAMS
2072 * hkey [I] Handle of key where restore begins
2073 * lpFile [I] Address of filename containing saved tree
2074 * dwFlags [I] Optional flags
2075 *
2076 * RETURNS
2077 * Success: ERROR_SUCCESS
2078 * Failure: nonzero error code from Winerror.h
2079 */
2080 LSTATUS WINAPI RegRestoreKeyW( HKEY hkey, LPCWSTR lpFile, DWORD dwFlags )
2081 {
2082 TRACE("(%p,%s,%d)\n",hkey,debugstr_w(lpFile),dwFlags);
2083
2084 /* It seems to do this check before the hkey check */
2085 if (!lpFile || !*lpFile)
2086 return ERROR_INVALID_PARAMETER;
2087
2088 FIXME("(%p,%s,%d): stub\n",hkey,debugstr_w(lpFile),dwFlags);
2089
2090 /* Check for file existence */
2091
2092 return ERROR_SUCCESS;
2093 }
2094
2095
2096 /******************************************************************************
2097 * RegRestoreKeyA [ADVAPI32.@]
2098 *
2099 * See RegRestoreKeyW.
2100 */
2101 LSTATUS WINAPI RegRestoreKeyA( HKEY hkey, LPCSTR lpFile, DWORD dwFlags )
2102 {
2103 UNICODE_STRING lpFileW;
2104 LONG ret;
2105
2106 RtlCreateUnicodeStringFromAsciiz( &lpFileW, lpFile );
2107 ret = RegRestoreKeyW( hkey, lpFileW.Buffer, dwFlags );
2108 RtlFreeUnicodeString( &lpFileW );
2109 return ret;
2110 }
2111
2112
2113 /******************************************************************************
2114 * RegUnLoadKeyW [ADVAPI32.@]
2115 *
2116 * Unload a registry key and its subkeys from the registry.
2117 *
2118 * PARAMS
2119 * hkey [I] Handle of open key
2120 * lpSubKey [I] Address of name of subkey to unload
2121 *
2122 * RETURNS
2123 * Success: ERROR_SUCCESS
2124 * Failure: nonzero error code from Winerror.h
2125 */
2126 LSTATUS WINAPI RegUnLoadKeyW( HKEY hkey, LPCWSTR lpSubKey )
2127 {
2128 DWORD ret;
2129 HKEY shkey;
2130 OBJECT_ATTRIBUTES attr;
2131 UNICODE_STRING subkey;
2132
2133 TRACE("(%p,%s)\n",hkey, debugstr_w(lpSubKey));
2134
2135 ret = RegOpenKeyW(hkey,lpSubKey,&shkey);
2136 if( ret )
2137 return ERROR_INVALID_PARAMETER;
2138
2139 RtlInitUnicodeString(&subkey, lpSubKey);
2140 InitializeObjectAttributes(&attr, &subkey, OBJ_CASE_INSENSITIVE, shkey, NULL);
2141 ret = RtlNtStatusToDosError(NtUnloadKey(&attr));
2142
2143 RegCloseKey(shkey);
2144
2145 return ret;
2146 }
2147
2148
2149 /******************************************************************************
2150 * RegUnLoadKeyA [ADVAPI32.@]
2151 *
2152 * See RegUnLoadKeyW.
2153 */
2154 LSTATUS WINAPI RegUnLoadKeyA( HKEY hkey, LPCSTR lpSubKey )
2155 {
2156 UNICODE_STRING lpSubKeyW;
2157 LONG ret;
2158
2159 RtlCreateUnicodeStringFromAsciiz( &lpSubKeyW, lpSubKey );
2160 ret = RegUnLoadKeyW( hkey, lpSubKeyW.Buffer );
2161 RtlFreeUnicodeString( &lpSubKeyW );
2162 return ret;
2163 }
2164
2165
2166 /******************************************************************************
2167 * RegReplaceKeyW [ADVAPI32.@]
2168 *
2169 * Replace the file backing a registry key and all its subkeys with another file.
2170 *
2171 * PARAMS
2172 * hkey [I] Handle of open key
2173 * lpSubKey [I] Address of name of subkey
2174 * lpNewFile [I] Address of filename for file with new data
2175 * lpOldFile [I] Address of filename for backup file
2176 *
2177 * RETURNS
2178 * Success: ERROR_SUCCESS
2179 * Failure: nonzero error code from Winerror.h
2180 */
2181 LSTATUS WINAPI RegReplaceKeyW( HKEY hkey, LPCWSTR lpSubKey, LPCWSTR lpNewFile,
2182 LPCWSTR lpOldFile )
2183 {
2184 FIXME("(%p,%s,%s,%s): stub\n", hkey, debugstr_w(lpSubKey),
2185 debugstr_w(lpNewFile),debugstr_w(lpOldFile));
2186 return ERROR_SUCCESS;
2187 }
2188
2189
2190 /******************************************************************************
2191 * RegReplaceKeyA [ADVAPI32.@]
2192 *
2193 * See RegReplaceKeyW.
2194 */
2195 LSTATUS WINAPI RegReplaceKeyA( HKEY hkey, LPCSTR lpSubKey, LPCSTR lpNewFile,
2196 LPCSTR lpOldFile )
2197 {
2198 UNICODE_STRING lpSubKeyW;
2199 UNICODE_STRING lpNewFileW;
2200 UNICODE_STRING lpOldFileW;
2201 LONG ret;
2202
2203 RtlCreateUnicodeStringFromAsciiz( &lpSubKeyW, lpSubKey );
2204 RtlCreateUnicodeStringFromAsciiz( &lpOldFileW, lpOldFile );
2205 RtlCreateUnicodeStringFromAsciiz( &lpNewFileW, lpNewFile );
2206 ret = RegReplaceKeyW( hkey, lpSubKeyW.Buffer, lpNewFileW.Buffer, lpOldFileW.Buffer );
2207 RtlFreeUnicodeString( &lpOldFileW );
2208 RtlFreeUnicodeString( &lpNewFileW );
2209 RtlFreeUnicodeString( &lpSubKeyW );
2210 return ret;
2211 }
2212
2213
2214 /******************************************************************************
2215 * RegSetKeySecurity [ADVAPI32.@]
2216 *
2217 * Set the security of an open registry key.
2218 *
2219 * PARAMS
2220 * hkey [I] Open handle of key to set
2221 * SecurityInfo [I] Descriptor contents
2222 * pSecurityDesc [I] Address of descriptor for key
2223 *
2224 * RETURNS
2225 * Success: ERROR_SUCCESS
2226 * Failure: nonzero error code from Winerror.h
2227 */
2228 LSTATUS WINAPI RegSetKeySecurity( HKEY hkey, SECURITY_INFORMATION SecurityInfo,
2229 PSECURITY_DESCRIPTOR pSecurityDesc )
2230 {
2231 TRACE("(%p,%d,%p)\n",hkey,SecurityInfo,pSecurityDesc);
2232
2233 /* It seems to perform this check before the hkey check */
2234 if ((SecurityInfo & OWNER_SECURITY_INFORMATION) ||
2235 (SecurityInfo & GROUP_SECURITY_INFORMATION) ||
2236 (SecurityInfo & DACL_SECURITY_INFORMATION) ||
2237 (SecurityInfo & SACL_SECURITY_INFORMATION)) {
2238 /* Param OK */
2239 } else
2240 return ERROR_INVALID_PARAMETER;
2241
2242 if (!pSecurityDesc)
2243 return ERROR_INVALID_PARAMETER;
2244
2245 FIXME(":(%p,%d,%p): stub\n",hkey,SecurityInfo,pSecurityDesc);
2246
2247 return ERROR_SUCCESS;
2248 }
2249
2250
2251 /******************************************************************************
2252 * RegGetKeySecurity [ADVAPI32.@]
2253 *
2254 * Get a copy of the security descriptor for a given registry key.
2255 *
2256 * PARAMS
2257 * hkey [I] Open handle of key to set
2258 * SecurityInformation [I] Descriptor contents
2259 * pSecurityDescriptor [O] Address of descriptor for key
2260 * lpcbSecurityDescriptor [I/O] Address of size of buffer and description
2261 *
2262 * RETURNS
2263 * Success: ERROR_SUCCESS
2264 * Failure: Error code
2265 */
2266 LSTATUS WINAPI RegGetKeySecurity( HKEY hkey, SECURITY_INFORMATION SecurityInformation,
2267 PSECURITY_DESCRIPTOR pSecurityDescriptor,
2268 LPDWORD lpcbSecurityDescriptor )
2269 {
2270 TRACE("(%p,%d,%p,%d)\n",hkey,SecurityInformation,pSecurityDescriptor,
2271 *lpcbSecurityDescriptor);
2272
2273 if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
2274
2275 return RtlNtStatusToDosError( NtQuerySecurityObject( hkey,
2276 SecurityInformation, pSecurityDescriptor,
2277 *lpcbSecurityDescriptor, lpcbSecurityDescriptor ) );
2278 }
2279
2280
2281 /******************************************************************************
2282 * RegFlushKey [ADVAPI32.@]
2283 *
2284 * Immediately write a registry key to registry.
2285 *
2286 * PARAMS
2287 * hkey [I] Handle of key to write
2288 *
2289 * RETURNS
2290 * Success: ERROR_SUCCESS
2291 * Failure: Error code
2292 */
2293 LSTATUS WINAPI RegFlushKey( HKEY hkey )
2294 {
2295 hkey = get_special_root_hkey( hkey );
2296 if (!hkey) return ERROR_INVALID_HANDLE;
2297
2298 return RtlNtStatusToDosError( NtFlushKey( hkey ) );
2299 }
2300
2301
2302 /******************************************************************************
2303 * RegConnectRegistryW [ADVAPI32.@]
2304 *
2305 * Establish a connection to a predefined registry key on another computer.
2306 *
2307 * PARAMS
2308 * lpMachineName [I] Address of name of remote computer
2309 * hHey [I] Predefined registry handle
2310 * phkResult [I] Address of buffer for remote registry handle
2311 *
2312 * RETURNS
2313 * Success: ERROR_SUCCESS
2314 * Failure: nonzero error code from Winerror.h
2315 */
2316 LSTATUS WINAPI RegConnectRegistryW( LPCWSTR lpMachineName, HKEY hKey,
2317 PHKEY phkResult )
2318 {
2319 LONG ret;
2320
2321 TRACE("(%s,%p,%p): stub\n",debugstr_w(lpMachineName),hKey,phkResult);
2322
2323 if (!lpMachineName || !*lpMachineName) {
2324 /* Use the local machine name */
2325 ret = RegOpenKeyW( hKey, NULL, phkResult );
2326 }
2327 else {
2328 WCHAR compName[MAX_COMPUTERNAME_LENGTH + 1];
2329 DWORD len = sizeof(compName) / sizeof(WCHAR);
2330
2331 /* MSDN says lpMachineName must start with \\ : not so */
2332 if( lpMachineName[0] == '\\' && lpMachineName[1] == '\\')
2333 lpMachineName += 2;
2334 if (GetComputerNameW(compName, &len))
2335 {
2336 if (!strcmpiW(lpMachineName, compName))
2337 ret = RegOpenKeyW(hKey, NULL, phkResult);
2338 else
2339 {
2340 FIXME("Connect to %s is not supported.\n",debugstr_w(lpMachineName));
2341 ret = ERROR_BAD_NETPATH;
2342 }
2343 }
2344 else
2345 ret = GetLastError();
2346 }
2347 return ret;
2348 }
2349
2350
2351 /******************************************************************************
2352 * RegConnectRegistryA [ADVAPI32.@]
2353 *
2354 * See RegConnectRegistryW.
2355 */
2356 LSTATUS WINAPI RegConnectRegistryA( LPCSTR machine, HKEY hkey, PHKEY reskey )
2357 {
2358 UNICODE_STRING machineW;
2359 LONG ret;
2360
2361 RtlCreateUnicodeStringFromAsciiz( &machineW, machine );
2362 ret = RegConnectRegistryW( machineW.Buffer, hkey, reskey );
2363 RtlFreeUnicodeString( &machineW );
2364 return ret;
2365 }
2366
2367
2368 /******************************************************************************
2369 * RegNotifyChangeKeyValue [ADVAPI32.@]
2370 *
2371 * Notify the caller about changes to the attributes or contents of a registry key.
2372 *
2373 * PARAMS
2374 * hkey [I] Handle of key to watch
2375 * fWatchSubTree [I] Flag for subkey notification
2376 * fdwNotifyFilter [I] Changes to be reported
2377 * hEvent [I] Handle of signaled event
2378 * fAsync [I] Flag for asynchronous reporting
2379 *
2380 * RETURNS
2381 * Success: ERROR_SUCCESS
2382 * Failure: nonzero error code from Winerror.h
2383 */
2384 LSTATUS WINAPI RegNotifyChangeKeyValue( HKEY hkey, BOOL fWatchSubTree,
2385 DWORD fdwNotifyFilter, HANDLE hEvent,
2386 BOOL fAsync )
2387 {
2388 NTSTATUS status;
2389 IO_STATUS_BLOCK iosb;
2390
2391 hkey = get_special_root_hkey( hkey );
2392 if (!hkey) return ERROR_INVALID_HANDLE;
2393
2394 TRACE("(%p,%i,%d,%p,%i)\n", hkey, fWatchSubTree, fdwNotifyFilter,
2395 hEvent, fAsync);
2396
2397 status = NtNotifyChangeKey( hkey, hEvent, NULL, NULL, &iosb,
2398 fdwNotifyFilter, fAsync, NULL, 0,
2399 fWatchSubTree);
2400
2401 if (status && status != STATUS_TIMEOUT)
2402 return RtlNtStatusToDosError( status );
2403
2404 return ERROR_SUCCESS;
2405 }
2406
2407 /******************************************************************************
2408 * RegOpenUserClassesRoot [ADVAPI32.@]
2409 *
2410 * Open the HKEY_CLASSES_ROOT key for a user.
2411 *
2412 * PARAMS
2413 * hToken [I] Handle of token representing the user
2414 * dwOptions [I] Reserved, must be 0
2415 * samDesired [I] Desired access rights
2416 * phkResult [O] Destination for the resulting key handle
2417 *
2418 * RETURNS
2419 * Success: ERROR_SUCCESS
2420 * Failure: nonzero error code from Winerror.h
2421 *
2422 * NOTES
2423 * On Windows 2000 and upwards the HKEY_CLASSES_ROOT key is a view of the
2424 * "HKEY_LOCAL_MACHINE\Software\Classes" and the
2425 * "HKEY_CURRENT_USER\Software\Classes" keys merged together.
2426 */
2427 LSTATUS WINAPI RegOpenUserClassesRoot(
2428 HANDLE hToken,
2429 DWORD dwOptions,
2430 REGSAM samDesired,
2431 PHKEY phkResult
2432 )
2433 {
2434 FIXME("(%p, 0x%x, 0x%x, %p) semi-stub\n", hToken, dwOptions, samDesired, phkResult);
2435
2436 *phkResult = HKEY_CLASSES_ROOT;
2437 return ERROR_SUCCESS;
2438 }
2439
2440 /******************************************************************************
2441 * load_string [Internal]
2442 *
2443 * This is basically a copy of user32/resource.c's LoadStringW. Necessary to
2444 * avoid importing user32, which is higher level than advapi32. Helper for
2445 * RegLoadMUIString.
2446 */
2447 static int load_string(HINSTANCE hModule, UINT resId, LPWSTR pwszBuffer, INT cMaxChars)
2448 {
2449 HGLOBAL hMemory;
2450 HRSRC hResource;
2451 WCHAR *pString;
2452 int idxString;
2453
2454 /* Negative values have to be inverted. */
2455 if (HIWORD(resId) == 0xffff)
2456 resId = (UINT)(-((INT)resId));
2457
2458 /* Load the resource into memory and get a pointer to it. */
2459 hResource = FindResourceW(hModule, MAKEINTRESOURCEW(LOWORD(resId >> 4) + 1), (LPWSTR)RT_STRING);
2460 if (!hResource) return 0;
2461 hMemory = LoadResource(hModule, hResource);
2462 if (!hMemory) return 0;
2463 pString = LockResource(hMemory);
2464
2465 /* Strings are length-prefixed. Lowest nibble of resId is an index. */
2466 idxString = resId & 0xf;
2467 while (idxString--) pString += *pString + 1;
2468
2469 /* If no buffer is given, return length of the string. */
2470 if (!pwszBuffer) return *pString;
2471
2472 /* Else copy over the string, respecting the buffer size. */
2473 cMaxChars = (*pString < cMaxChars) ? *pString : (cMaxChars - 1);
2474 if (cMaxChars >= 0) {
2475 memcpy(pwszBuffer, pString+1, cMaxChars * sizeof(WCHAR));
2476 pwszBuffer[cMaxChars] = '\0';
2477 }
2478
2479 return cMaxChars;
2480 }
2481
2482 /******************************************************************************
2483 * RegLoadMUIStringW [ADVAPI32.@]
2484 *
2485 * Load the localized version of a string resource from some PE, respective
2486 * id and path of which are given in the registry value in the format
2487 * @[path]\dllname,-resourceId
2488 *
2489 * PARAMS
2490 * hKey [I] Key, of which to load the string value from.
2491 * pszValue [I] The value to be loaded (Has to be of REG_EXPAND_SZ or REG_SZ type).
2492 * pszBuffer [O] Buffer to store the localized string in.
2493 * cbBuffer [I] Size of the destination buffer in bytes.
2494 * pcbData [O] Number of bytes written to pszBuffer (optional, may be NULL).
2495 * dwFlags [I] None supported yet.
2496 * pszBaseDir [I] Not supported yet.
2497 *
2498 * RETURNS
2499 * Success: ERROR_SUCCESS,
2500 * Failure: nonzero error code from winerror.h
2501 *
2502 * NOTES
2503 * This is an API of Windows Vista, which wasn't available at the time this code
2504 * was written. We have to check for the correct behaviour once it's available.
2505 */
2506 LSTATUS WINAPI RegLoadMUIStringW(HKEY hKey, LPCWSTR pwszValue, LPWSTR pwszBuffer, DWORD cbBuffer,
2507 LPDWORD pcbData, DWORD dwFlags, LPCWSTR pwszBaseDir)
2508 {
2509 DWORD dwValueType, cbData;
2510 LPWSTR pwszTempBuffer = NULL, pwszExpandedBuffer = NULL;
2511 LONG result;
2512
2513 TRACE("(hKey = %p, pwszValue = %s, pwszBuffer = %p, cbBuffer = %d, pcbData = %p, "
2514 "dwFlags = %d, pwszBaseDir = %s) stub\n", hKey, debugstr_w(pwszValue), pwszBuffer,
2515 cbBuffer, pcbData, dwFlags, debugstr_w(pwszBaseDir));
2516
2517 /* Parameter sanity checks. */
2518 if (!hKey || !pwszBuffer)
2519 return ERROR_INVALID_PARAMETER;
2520
2521 if (pwszBaseDir && *pwszBaseDir) {
2522 FIXME("BaseDir parameter not yet supported!\n");
2523 return ERROR_INVALID_PARAMETER;
2524 }
2525
2526 /* Check for value existence and correctness of it's type, allocate a buffer and load it. */
2527 result = RegQueryValueExW(hKey, pwszValue, NULL, &dwValueType, NULL, &cbData);
2528 if (result != ERROR_SUCCESS) goto cleanup;
2529 if (!(dwValueType == REG_SZ || dwValueType == REG_EXPAND_SZ) || !cbData) {
2530 result = ERROR_FILE_NOT_FOUND;
2531 goto cleanup;
2532 }
2533 pwszTempBuffer = HeapAlloc(GetProcessHeap(), 0, cbData);
2534 if (!pwszTempBuffer) {
2535 result = ERROR_NOT_ENOUGH_MEMORY;
2536 goto cleanup;
2537 }
2538 result = RegQueryValueExW(hKey, pwszValue, NULL, &dwValueType, (LPBYTE)pwszTempBuffer, &cbData);
2539 if (result != ERROR_SUCCESS) goto cleanup;
2540
2541 /* Expand environment variables, if appropriate, or copy the original string over. */
2542 if (dwValueType == REG_EXPAND_SZ) {
2543 cbData = ExpandEnvironmentStringsW(pwszTempBuffer, NULL, 0) * sizeof(WCHAR);
2544 if (!cbData) goto cleanup;
2545 pwszExpandedBuffer = HeapAlloc(GetProcessHeap(), 0, cbData);
2546 if (!pwszExpandedBuffer) {
2547 result = ERROR_NOT_ENOUGH_MEMORY;
2548 goto cleanup;
2549 }
2550 ExpandEnvironmentStringsW(pwszTempBuffer, pwszExpandedBuffer, cbData);
2551 } else {
2552 pwszExpandedBuffer = HeapAlloc(GetProcessHeap(), 0, cbData);
2553 memcpy(pwszExpandedBuffer, pwszTempBuffer, cbData);
2554 }
2555
2556 /* If the value references a resource based string, parse the value and load the string.
2557 * Else just copy over the original value. */
2558 result = ERROR_SUCCESS;
2559 if (*pwszExpandedBuffer != '@') { /* '@' is the prefix for resource based string entries. */
2560 lstrcpynW(pwszBuffer, pwszExpandedBuffer, cbBuffer / sizeof(WCHAR));
2561 } else {
2562 WCHAR *pComma = strrchrW(pwszExpandedBuffer, ',');
2563 UINT uiStringId;
2564 HMODULE hModule;
2565
2566 /* Format of the expanded value is 'path_to_dll,-resId' */
2567 if (!pComma || pComma[1] != '-') {
2568 result = ERROR_BADKEY;
2569 goto cleanup;
2570 }
2571
2572 uiStringId = atoiW(pComma+2);
2573 *pComma = '\0';
2574
2575 hModule = LoadLibraryW(pwszExpandedBuffer + 1);
2576 if (!hModule || !load_string(hModule, uiStringId, pwszBuffer, cbBuffer/sizeof(WCHAR)))
2577 result = ERROR_BADKEY;
2578 FreeLibrary(hModule);
2579 }
2580
2581 cleanup:
2582 HeapFree(GetProcessHeap(), 0, pwszTempBuffer);
2583 HeapFree(GetProcessHeap(), 0, pwszExpandedBuffer);
2584 return result;
2585 }
2586
2587 /******************************************************************************
2588 * RegLoadMUIStringA [ADVAPI32.@]
2589 *
2590 * See RegLoadMUIStringW
2591 */
2592 LSTATUS WINAPI RegLoadMUIStringA(HKEY hKey, LPCSTR pszValue, LPSTR pszBuffer, DWORD cbBuffer,
2593 LPDWORD pcbData, DWORD dwFlags, LPCSTR pszBaseDir)
2594 {
2595 UNICODE_STRING valueW, baseDirW;
2596 WCHAR *pwszBuffer;
2597 DWORD cbData = cbBuffer * sizeof(WCHAR);
2598 LONG result;
2599
2600 valueW.Buffer = baseDirW.Buffer = pwszBuffer = NULL;
2601 if (!RtlCreateUnicodeStringFromAsciiz(&valueW, pszValue) ||
2602 !RtlCreateUnicodeStringFromAsciiz(&baseDirW, pszBaseDir) ||
2603 !(pwszBuffer = HeapAlloc(GetProcessHeap(), 0, cbData)))
2604 {
2605 result = ERROR_NOT_ENOUGH_MEMORY;
2606 goto cleanup;
2607 }
2608
2609 result = RegLoadMUIStringW(hKey, valueW.Buffer, pwszBuffer, cbData, NULL, dwFlags,
2610 baseDirW.Buffer);
2611
2612 if (result == ERROR_SUCCESS) {
2613 cbData = WideCharToMultiByte(CP_ACP, 0, pwszBuffer, -1, pszBuffer, cbBuffer, NULL, NULL);
2614 if (pcbData)
2615 *pcbData = cbData;
2616 }
2617
2618 cleanup:
2619 HeapFree(GetProcessHeap(), 0, pwszBuffer);
2620 RtlFreeUnicodeString(&baseDirW);
2621 RtlFreeUnicodeString(&valueW);
2622
2623 return result;
2624 }
2625
2626 /******************************************************************************
2627 * RegDisablePredefinedCache [ADVAPI32.@]
2628 *
2629 * Disables the caching of the HKEY_CLASSES_ROOT key for the process.
2630 *
2631 * PARAMS
2632 * None.
2633 *
2634 * RETURNS
2635 * Success: ERROR_SUCCESS
2636 * Failure: nonzero error code from Winerror.h
2637 *
2638 * NOTES
2639 * This is useful for services that use impersonation.
2640 */
2641 LSTATUS WINAPI RegDisablePredefinedCache(void)
2642 {
2643 HKEY hkey_current_user;
2644 int idx = (UINT_PTR)HKEY_CURRENT_USER - (UINT_PTR)HKEY_SPECIAL_ROOT_FIRST;
2645
2646 /* prevent caching of future requests */
2647 hkcu_cache_disabled = TRUE;
2648
2649 hkey_current_user = InterlockedExchangePointer( (void **)&special_root_keys[idx], NULL );
2650
2651 if (hkey_current_user)
2652 NtClose( hkey_current_user );
2653
2654 return ERROR_SUCCESS;
2655 }
2656
2657 /******************************************************************************
2658 * RegDeleteTreeW [ADVAPI32.@]
2659 *
2660 */
2661 LSTATUS WINAPI RegDeleteTreeW(HKEY hKey, LPCWSTR lpszSubKey)
2662 {
2663 LONG ret;
2664 DWORD dwMaxSubkeyLen, dwMaxValueLen;
2665 DWORD dwMaxLen, dwSize;
2666 WCHAR szNameBuf[MAX_PATH], *lpszName = szNameBuf;
2667 HKEY hSubKey = hKey;
2668
2669 TRACE("(hkey=%p,%p %s)\n", hKey, lpszSubKey, debugstr_w(lpszSubKey));
2670
2671 if(lpszSubKey)
2672 {
2673 ret = RegOpenKeyExW(hKey, lpszSubKey, 0, KEY_READ, &hSubKey);
2674 if (ret) return ret;
2675 }
2676
2677 /* Get highest length for keys, values */
2678 ret = RegQueryInfoKeyW(hSubKey, NULL, NULL, NULL, NULL,
2679 &dwMaxSubkeyLen, NULL, NULL, &dwMaxValueLen, NULL, NULL, NULL);
2680 if (ret) goto cleanup;
2681
2682 dwMaxSubkeyLen++;
2683 dwMaxValueLen++;
2684 dwMaxLen = max(dwMaxSubkeyLen, dwMaxValueLen);
2685 if (dwMaxLen > sizeof(szNameBuf)/sizeof(WCHAR))
2686 {
2687 /* Name too big: alloc a buffer for it */
2688 if (!(lpszName = HeapAlloc( GetProcessHeap(), 0, dwMaxLen*sizeof(WCHAR))))
2689 {
2690 ret = ERROR_NOT_ENOUGH_MEMORY;
2691 goto cleanup;
2692 }
2693 }
2694
2695
2696 /* Recursively delete all the subkeys */
2697 while (TRUE)
2698 {
2699 dwSize = dwMaxLen;
2700 if (RegEnumKeyExW(hSubKey, 0, lpszName, &dwSize, NULL,
2701 NULL, NULL, NULL)) break;
2702
2703 ret = RegDeleteTreeW(hSubKey, lpszName);
2704 if (ret) goto cleanup;
2705 }
2706
2707 if (lpszSubKey)
2708 ret = RegDeleteKeyW(hKey, lpszSubKey);
2709 else
2710 while (TRUE)
2711 {
2712 dwSize = dwMaxLen;
2713 if (RegEnumValueW(hKey, 0, lpszName, &dwSize,
2714 NULL, NULL, NULL, NULL)) break;
2715
2716 ret = RegDeleteValueW(hKey, lpszName);
2717 if (ret) goto cleanup;
2718 }
2719
2720 cleanup:
2721 /* Free buffer if allocated */
2722 if (lpszName != szNameBuf)
2723 HeapFree( GetProcessHeap(), 0, lpszName);
2724 if(lpszSubKey)
2725 RegCloseKey(hSubKey);
2726 return ret;
2727 }
2728
2729 /******************************************************************************
2730 * RegDeleteTreeA [ADVAPI32.@]
2731 *
2732 */
2733 LSTATUS WINAPI RegDeleteTreeA(HKEY hKey, LPCSTR lpszSubKey)
2734 {
2735 LONG ret;
2736 UNICODE_STRING lpszSubKeyW;
2737
2738 if (lpszSubKey) RtlCreateUnicodeStringFromAsciiz( &lpszSubKeyW, lpszSubKey);
2739 else lpszSubKeyW.Buffer = NULL;
2740 ret = RegDeleteTreeW( hKey, lpszSubKeyW.Buffer);
2741 RtlFreeUnicodeString( &lpszSubKeyW );
2742 return ret;
2743 }
useful hacks and other patches not (yet) suitable for mainline