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goma/wine/4e1c8767f914ba30a91c44ca00b2e4a67f8c89f0/./dlls/advapi32/registry.c
blob: b9cb8c532289f1666dfe8609d18e52c012a823f5 [file]
/*
* Registry management
*
* Copyright (C) 1999 Alexandre Julliard
*
* Based on misc/registry.c code
* Copyright (C) 1996 Marcus Meissner
* Copyright (C) 1998 Matthew Becker
* Copyright (C) 1999 Sylvain St-Germain
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <stdlib.h>
#include <stdarg.h>
#include <stdio.h>
#include "ntstatus.h"
#define WIN32_NO_STATUS
#include "windef.h"
#include "winbase.h"
#include "winreg.h"
#include "winerror.h"
#include "winternl.h"
#include "winuser.h"
#include "wine/unicode.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(reg);
#define HKEY_SPECIAL_ROOT_FIRST HKEY_CLASSES_ROOT
#define HKEY_SPECIAL_ROOT_LAST HKEY_DYN_DATA
#define NB_SPECIAL_ROOT_KEYS ((UINT_PTR)HKEY_SPECIAL_ROOT_LAST - (UINT_PTR)HKEY_SPECIAL_ROOT_FIRST + 1)
static HKEY special_root_keys[NB_SPECIAL_ROOT_KEYS];
static BOOL hkcu_cache_disabled;
static const WCHAR name_CLASSES_ROOT[] =
{'M','a','c','h','i','n','e','\\',
'S','o','f','t','w','a','r','e','\\',
'C','l','a','s','s','e','s',0};
static const WCHAR name_LOCAL_MACHINE[] =
{'M','a','c','h','i','n','e',0};
static const WCHAR name_USERS[] =
{'U','s','e','r',0};
static const WCHAR name_PERFORMANCE_DATA[] =
{'P','e','r','f','D','a','t','a',0};
static const WCHAR name_CURRENT_CONFIG[] =
{'M','a','c','h','i','n','e','\\',
'S','y','s','t','e','m','\\',
'C','u','r','r','e','n','t','C','o','n','t','r','o','l','S','e','t','\\',
'H','a','r','d','w','a','r','e',' ','P','r','o','f','i','l','e','s','\\',
'C','u','r','r','e','n','t',0};
static const WCHAR name_DYN_DATA[] =
{'D','y','n','D','a','t','a',0};
static const WCHAR * const root_key_names[NB_SPECIAL_ROOT_KEYS] =
{
name_CLASSES_ROOT,
NULL, /* HKEY_CURRENT_USER is determined dynamically */
name_LOCAL_MACHINE,
name_USERS,
name_PERFORMANCE_DATA,
name_CURRENT_CONFIG,
name_DYN_DATA
};
/* check if value type needs string conversion (Ansi<->Unicode) */
static inline int is_string( DWORD type )
{
return (type == REG_SZ) || (type == REG_EXPAND_SZ) || (type == REG_MULTI_SZ);
}
/* check if current version is NT or Win95 */
static inline int is_version_nt(void)
{
return !(GetVersion() & 0x80000000);
}
/* create one of the HKEY_* special root keys */
static HKEY create_special_root_hkey( HANDLE hkey, DWORD access )
{
HKEY ret = 0;
int idx = (UINT_PTR)hkey - (UINT_PTR)HKEY_SPECIAL_ROOT_FIRST;
if (hkey == HKEY_CURRENT_USER)
{
if (RtlOpenCurrentUser( access, &hkey )) return 0;
TRACE( "HKEY_CURRENT_USER -> %p\n", hkey );
/* don't cache the key in the table if caching is disabled */
if (hkcu_cache_disabled)
return hkey;
}
else
{
OBJECT_ATTRIBUTES attr;
UNICODE_STRING name;
attr.Length = sizeof(attr);
attr.RootDirectory = 0;
attr.ObjectName = &name;
attr.Attributes = 0;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
RtlInitUnicodeString( &name, root_key_names[idx] );
if (NtCreateKey( &hkey, access, &attr, 0, NULL, 0, NULL )) return 0;
TRACE( "%s -> %p\n", debugstr_w(attr.ObjectName->Buffer), hkey );
}
if (!(ret = InterlockedCompareExchangePointer( (void **)&special_root_keys[idx], hkey, 0 )))
ret = hkey;
else
NtClose( hkey ); /* somebody beat us to it */
return ret;
}
/* map the hkey from special root to normal key if necessary */
static inline HKEY get_special_root_hkey( HKEY hkey )
{
HKEY ret = hkey;
if ((hkey >= HKEY_SPECIAL_ROOT_FIRST) && (hkey <= HKEY_SPECIAL_ROOT_LAST))
{
if (!(ret = special_root_keys[(UINT_PTR)hkey - (UINT_PTR)HKEY_SPECIAL_ROOT_FIRST]))
ret = create_special_root_hkey( hkey, MAXIMUM_ALLOWED );
}
return ret;
}
/******************************************************************************
* RegOverridePredefKey [ADVAPI32.@]
*/
LSTATUS WINAPI RegOverridePredefKey( HKEY hkey, HKEY override )
{
HKEY old_key;
int idx;
if ((hkey < HKEY_SPECIAL_ROOT_FIRST) || (hkey > HKEY_SPECIAL_ROOT_LAST))
return ERROR_INVALID_PARAMETER;
idx = (UINT_PTR)hkey - (UINT_PTR)HKEY_SPECIAL_ROOT_FIRST;
if (override)
{
NTSTATUS status = NtDuplicateObject( GetCurrentProcess(), override,
GetCurrentProcess(), (HANDLE *)&override,
0, 0, DUPLICATE_SAME_ACCESS );
if (status) return RtlNtStatusToDosError( status );
}
old_key = InterlockedExchangePointer( (void **)&special_root_keys[idx], override );
if (old_key) NtClose( old_key );
return ERROR_SUCCESS;
}
/******************************************************************************
* RegCreateKeyExW [ADVAPI32.@]
*
* See RegCreateKeyExA.
*/
LSTATUS WINAPI RegCreateKeyExW( HKEY hkey, LPCWSTR name, DWORD reserved, LPWSTR class,
DWORD options, REGSAM access, SECURITY_ATTRIBUTES *sa,
PHKEY retkey, LPDWORD dispos )
{
OBJECT_ATTRIBUTES attr;
UNICODE_STRING nameW, classW;
if (reserved) return ERROR_INVALID_PARAMETER;
if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
attr.Length = sizeof(attr);
attr.RootDirectory = hkey;
attr.ObjectName = &nameW;
attr.Attributes = 0;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
if (options & REG_OPTION_OPEN_LINK) attr.Attributes |= OBJ_OPENLINK;
RtlInitUnicodeString( &nameW, name );
RtlInitUnicodeString( &classW, class );
return RtlNtStatusToDosError( NtCreateKey( (PHANDLE)retkey, access, &attr, 0,
&classW, options, dispos ) );
}
/******************************************************************************
* RegCreateKeyExA [ADVAPI32.@]
*
* Open a registry key, creating it if it doesn't exist.
*
* PARAMS
* hkey [I] Handle of the parent registry key
* name [I] Name of the new key to open or create
* reserved [I] Reserved, pass 0
* class [I] The object type of the new key
* options [I] Flags controlling the key creation (REG_OPTION_* flags from "winnt.h")
* access [I] Access level desired
* sa [I] Security attributes for the key
* retkey [O] Destination for the resulting handle
* dispos [O] Receives REG_CREATED_NEW_KEY or REG_OPENED_EXISTING_KEY
*
* RETURNS
* Success: ERROR_SUCCESS.
* Failure: A standard Win32 error code. retkey remains untouched.
*
* FIXME
* MAXIMUM_ALLOWED in access mask not supported by server
*/
LSTATUS WINAPI RegCreateKeyExA( HKEY hkey, LPCSTR name, DWORD reserved, LPSTR class,
DWORD options, REGSAM access, SECURITY_ATTRIBUTES *sa,
PHKEY retkey, LPDWORD dispos )
{
OBJECT_ATTRIBUTES attr;
UNICODE_STRING classW;
ANSI_STRING nameA, classA;
NTSTATUS status;
if (reserved) return ERROR_INVALID_PARAMETER;
if (!is_version_nt())
{
access = MAXIMUM_ALLOWED; /* Win95 ignores the access mask */
if (name && *name == '\\') name++; /* win9x,ME ignores one (and only one) beginning backslash */
}
if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
attr.Length = sizeof(attr);
attr.RootDirectory = hkey;
attr.ObjectName = &NtCurrentTeb()->StaticUnicodeString;
attr.Attributes = 0;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
if (options & REG_OPTION_OPEN_LINK) attr.Attributes |= OBJ_OPENLINK;
RtlInitAnsiString( &nameA, name );
RtlInitAnsiString( &classA, class );
if (!(status = RtlAnsiStringToUnicodeString( &NtCurrentTeb()->StaticUnicodeString,
&nameA, FALSE )))
{
if (!(status = RtlAnsiStringToUnicodeString( &classW, &classA, TRUE )))
{
status = NtCreateKey( (PHANDLE)retkey, access, &attr, 0, &classW, options, dispos );
RtlFreeUnicodeString( &classW );
}
}
return RtlNtStatusToDosError( status );
}
/******************************************************************************
* RegCreateKeyW [ADVAPI32.@]
*
* Creates the specified reg key.
*
* PARAMS
* hKey [I] Handle to an open key.
* lpSubKey [I] Name of a key that will be opened or created.
* phkResult [O] Receives a handle to the opened or created key.
*
* RETURNS
* Success: ERROR_SUCCESS
* Failure: nonzero error code defined in Winerror.h
*/
LSTATUS WINAPI RegCreateKeyW( HKEY hkey, LPCWSTR lpSubKey, PHKEY phkResult )
{
/* FIXME: previous implementation converted ERROR_INVALID_HANDLE to ERROR_BADKEY, */
/* but at least my version of NT (4.0 SP5) doesn't do this. -- AJ */
return RegCreateKeyExW( hkey, lpSubKey, 0, NULL, REG_OPTION_NON_VOLATILE,
MAXIMUM_ALLOWED, NULL, phkResult, NULL );
}
/******************************************************************************
* RegCreateKeyA [ADVAPI32.@]
*
* See RegCreateKeyW.
*/
LSTATUS WINAPI RegCreateKeyA( HKEY hkey, LPCSTR lpSubKey, PHKEY phkResult )
{
return RegCreateKeyExA( hkey, lpSubKey, 0, NULL, REG_OPTION_NON_VOLATILE,
MAXIMUM_ALLOWED, NULL, phkResult, NULL );
}
/******************************************************************************
* RegOpenKeyExW [ADVAPI32.@]
*
* See RegOpenKeyExA.
*/
LSTATUS WINAPI RegOpenKeyExW( HKEY hkey, LPCWSTR name, DWORD options, REGSAM access, PHKEY retkey )
{
OBJECT_ATTRIBUTES attr;
UNICODE_STRING nameW;
/* NT+ allows beginning backslash for HKEY_CLASSES_ROOT */
if (hkey == HKEY_CLASSES_ROOT && name && *name == '\\') name++;
if (!retkey) return ERROR_INVALID_PARAMETER;
if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
attr.Length = sizeof(attr);
attr.RootDirectory = hkey;
attr.ObjectName = &nameW;
attr.Attributes = 0;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
if (options & REG_OPTION_OPEN_LINK) attr.Attributes |= OBJ_OPENLINK;
RtlInitUnicodeString( &nameW, name );
return RtlNtStatusToDosError( NtOpenKey( (PHANDLE)retkey, access, &attr ) );
}
/******************************************************************************
* RegOpenKeyExA [ADVAPI32.@]
*
* Open a registry key.
*
* PARAMS
* hkey [I] Handle of open key
* name [I] Name of subkey to open
* options [I] Open options (can be set to REG_OPTION_OPEN_LINK)
* access [I] Security access mask
* retkey [O] Handle to open key
*
* RETURNS
* Success: ERROR_SUCCESS
* Failure: A standard Win32 error code. retkey is set to 0.
*
* NOTES
* Unlike RegCreateKeyExA(), this function will not create the key if it
* does not exist.
*/
LSTATUS WINAPI RegOpenKeyExA( HKEY hkey, LPCSTR name, DWORD options, REGSAM access, PHKEY retkey )
{
OBJECT_ATTRIBUTES attr;
STRING nameA;
NTSTATUS status;
if (!is_version_nt()) access = MAXIMUM_ALLOWED; /* Win95 ignores the access mask */
else
{
/* NT+ allows beginning backslash for HKEY_CLASSES_ROOT */
if (hkey == HKEY_CLASSES_ROOT && name && *name == '\\') name++;
}
if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
attr.Length = sizeof(attr);
attr.RootDirectory = hkey;
attr.ObjectName = &NtCurrentTeb()->StaticUnicodeString;
attr.Attributes = 0;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
if (options & REG_OPTION_OPEN_LINK) attr.Attributes |= OBJ_OPENLINK;
RtlInitAnsiString( &nameA, name );
if (!(status = RtlAnsiStringToUnicodeString( &NtCurrentTeb()->StaticUnicodeString,
&nameA, FALSE )))
{
status = NtOpenKey( (PHANDLE)retkey, access, &attr );
}
return RtlNtStatusToDosError( status );
}
/******************************************************************************
* RegOpenKeyW [ADVAPI32.@]
*
* See RegOpenKeyA.
*/
LSTATUS WINAPI RegOpenKeyW( HKEY hkey, LPCWSTR name, PHKEY retkey )
{
if (!retkey)
return ERROR_INVALID_PARAMETER;
if (!name || !*name)
{
*retkey = hkey;
return ERROR_SUCCESS;
}
return RegOpenKeyExW( hkey, name, 0, MAXIMUM_ALLOWED, retkey );
}
/******************************************************************************
* RegOpenKeyA [ADVAPI32.@]
*
* Open a registry key.
*
* PARAMS
* hkey [I] Handle of parent key to open the new key under
* name [I] Name of the key under hkey to open
* retkey [O] Destination for the resulting Handle
*
* RETURNS
* Success: ERROR_SUCCESS
* Failure: A standard Win32 error code. When retkey is valid, *retkey is set to 0.
*/
LSTATUS WINAPI RegOpenKeyA( HKEY hkey, LPCSTR name, PHKEY retkey )
{
if (!retkey)
return ERROR_INVALID_PARAMETER;
if (!name || !*name)
{
*retkey = hkey;
return ERROR_SUCCESS;
}
return RegOpenKeyExA( hkey, name, 0, MAXIMUM_ALLOWED, retkey );
}
/******************************************************************************
* RegOpenCurrentUser [ADVAPI32.@]
*
* Get a handle to the HKEY_CURRENT_USER key for the user
* the current thread is impersonating.
*
* PARAMS
* access [I] Desired access rights to the key
* retkey [O] Handle to the opened key
*
* RETURNS
* Success: ERROR_SUCCESS
* Failure: nonzero error code from Winerror.h
*
* FIXME
* This function is supposed to retrieve a handle to the
* HKEY_CURRENT_USER for the user the current thread is impersonating.
* Since Wine does not currently allow threads to impersonate other users,
* this stub should work fine.
*/
LSTATUS WINAPI RegOpenCurrentUser( REGSAM access, PHKEY retkey )
{
return RegOpenKeyExA( HKEY_CURRENT_USER, "", 0, access, retkey );
}
/******************************************************************************
* RegEnumKeyExW [ADVAPI32.@]
*
* Enumerate subkeys of the specified open registry key.
*
* PARAMS
* hkey [I] Handle to key to enumerate
* index [I] Index of subkey to enumerate
* name [O] Buffer for subkey name
* name_len [O] Size of subkey buffer
* reserved [I] Reserved
* class [O] Buffer for class string
* class_len [O] Size of class buffer
* ft [O] Time key last written to
*
* RETURNS
* Success: ERROR_SUCCESS
* Failure: System error code. If there are no more subkeys available, the
* function returns ERROR_NO_MORE_ITEMS.
*/
LSTATUS WINAPI RegEnumKeyExW( HKEY hkey, DWORD index, LPWSTR name, LPDWORD name_len,
LPDWORD reserved, LPWSTR class, LPDWORD class_len, FILETIME *ft )
{
NTSTATUS status;
char buffer[256], *buf_ptr = buffer;
KEY_NODE_INFORMATION *info = (KEY_NODE_INFORMATION *)buffer;
DWORD total_size;
TRACE( "(%p,%d,%p,%p(%u),%p,%p,%p,%p)\n", hkey, index, name, name_len,
name_len ? *name_len : 0, reserved, class, class_len, ft );
if (reserved) return ERROR_INVALID_PARAMETER;
if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
status = NtEnumerateKey( hkey, index, KeyNodeInformation,
buffer, sizeof(buffer), &total_size );
while (status == STATUS_BUFFER_OVERFLOW)
{
/* retry with a dynamically allocated buffer */
if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
if (!(buf_ptr = HeapAlloc( GetProcessHeap(), 0, total_size )))
return ERROR_NOT_ENOUGH_MEMORY;
info = (KEY_NODE_INFORMATION *)buf_ptr;
status = NtEnumerateKey( hkey, index, KeyNodeInformation,
buf_ptr, total_size, &total_size );
}
if (!status)
{
DWORD len = info->NameLength / sizeof(WCHAR);
DWORD cls_len = info->ClassLength / sizeof(WCHAR);
if (ft) *ft = *(FILETIME *)&info->LastWriteTime;
if (len >= *name_len || (class && class_len && (cls_len >= *class_len)))
status = STATUS_BUFFER_OVERFLOW;
else
{
*name_len = len;
memcpy( name, info->Name, info->NameLength );
name[len] = 0;
if (class_len)
{
*class_len = cls_len;
if (class)
{
memcpy( class, buf_ptr + info->ClassOffset, info->ClassLength );
class[cls_len] = 0;
}
}
}
}
if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
return RtlNtStatusToDosError( status );
}
/******************************************************************************
* RegEnumKeyExA [ADVAPI32.@]
*
* See RegEnumKeyExW.
*/
LSTATUS WINAPI RegEnumKeyExA( HKEY hkey, DWORD index, LPSTR name, LPDWORD name_len,
LPDWORD reserved, LPSTR class, LPDWORD class_len, FILETIME *ft )
{
NTSTATUS status;
char buffer[256], *buf_ptr = buffer;
KEY_NODE_INFORMATION *info = (KEY_NODE_INFORMATION *)buffer;
DWORD total_size;
TRACE( "(%p,%d,%p,%p(%u),%p,%p,%p,%p)\n", hkey, index, name, name_len,
name_len ? *name_len : 0, reserved, class, class_len, ft );
if (reserved) return ERROR_INVALID_PARAMETER;
if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
status = NtEnumerateKey( hkey, index, KeyNodeInformation,
buffer, sizeof(buffer), &total_size );
while (status == STATUS_BUFFER_OVERFLOW)
{
/* retry with a dynamically allocated buffer */
if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
if (!(buf_ptr = HeapAlloc( GetProcessHeap(), 0, total_size )))
return ERROR_NOT_ENOUGH_MEMORY;
info = (KEY_NODE_INFORMATION *)buf_ptr;
status = NtEnumerateKey( hkey, index, KeyNodeInformation,
buf_ptr, total_size, &total_size );
}
if (!status)
{
DWORD len, cls_len;
RtlUnicodeToMultiByteSize( &len, info->Name, info->NameLength );
RtlUnicodeToMultiByteSize( &cls_len, (WCHAR *)(buf_ptr + info->ClassOffset),
info->ClassLength );
if (ft) *ft = *(FILETIME *)&info->LastWriteTime;
if (len >= *name_len || (class && class_len && (cls_len >= *class_len)))
status = STATUS_BUFFER_OVERFLOW;
else
{
*name_len = len;
RtlUnicodeToMultiByteN( name, len, NULL, info->Name, info->NameLength );
name[len] = 0;
if (class_len)
{
*class_len = cls_len;
if (class)
{
RtlUnicodeToMultiByteN( class, cls_len, NULL,
(WCHAR *)(buf_ptr + info->ClassOffset),
info->ClassLength );
class[cls_len] = 0;
}
}
}
}
if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
return RtlNtStatusToDosError( status );
}
/******************************************************************************
* RegEnumKeyW [ADVAPI32.@]
*
* Enumerates subkeys of the specified open reg key.
*
* PARAMS
* hKey [I] Handle to an open key.
* dwIndex [I] Index of the subkey of hKey to retrieve.
* lpName [O] Name of the subkey.
* cchName [I] Size of lpName in TCHARS.
*
* RETURNS
* Success: ERROR_SUCCESS
* Failure: system error code. If there are no more subkeys available, the
* function returns ERROR_NO_MORE_ITEMS.
*/
LSTATUS WINAPI RegEnumKeyW( HKEY hkey, DWORD index, LPWSTR name, DWORD name_len )
{
return RegEnumKeyExW( hkey, index, name, &name_len, NULL, NULL, NULL, NULL );
}
/******************************************************************************
* RegEnumKeyA [ADVAPI32.@]
*
* See RegEnumKeyW.
*/
LSTATUS WINAPI RegEnumKeyA( HKEY hkey, DWORD index, LPSTR name, DWORD name_len )
{
return RegEnumKeyExA( hkey, index, name, &name_len, NULL, NULL, NULL, NULL );
}
/******************************************************************************
* RegQueryInfoKeyW [ADVAPI32.@]
*
* Retrieves information about the specified registry key.
*
* PARAMS
* hkey [I] Handle to key to query
* class [O] Buffer for class string
* class_len [O] Size of class string buffer
* reserved [I] Reserved
* subkeys [O] Buffer for number of subkeys
* max_subkey [O] Buffer for longest subkey name length
* max_class [O] Buffer for longest class string length
* values [O] Buffer for number of value entries
* max_value [O] Buffer for longest value name length
* max_data [O] Buffer for longest value data length
* security [O] Buffer for security descriptor length
* modif [O] Modification time
*
* RETURNS
* Success: ERROR_SUCCESS
* Failure: system error code.
*
* NOTES
* - win95 allows class to be valid and class_len to be NULL
* - winnt returns ERROR_INVALID_PARAMETER if class is valid and class_len is NULL
* - both allow class to be NULL and class_len to be NULL
* (it's hard to test validity, so test !NULL instead)
*/
LSTATUS WINAPI RegQueryInfoKeyW( HKEY hkey, LPWSTR class, LPDWORD class_len, LPDWORD reserved,
LPDWORD subkeys, LPDWORD max_subkey, LPDWORD max_class,
LPDWORD values, LPDWORD max_value, LPDWORD max_data,
LPDWORD security, FILETIME *modif )
{
NTSTATUS status;
char buffer[256], *buf_ptr = buffer;
KEY_FULL_INFORMATION *info = (KEY_FULL_INFORMATION *)buffer;
DWORD total_size;
TRACE( "(%p,%p,%d,%p,%p,%p,%p,%p,%p,%p,%p)\n", hkey, class, class_len ? *class_len : 0,
reserved, subkeys, max_subkey, values, max_value, max_data, security, modif );
if (class && !class_len && is_version_nt()) return ERROR_INVALID_PARAMETER;
if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
status = NtQueryKey( hkey, KeyFullInformation, buffer, sizeof(buffer), &total_size );
if (status && status != STATUS_BUFFER_OVERFLOW) goto done;
if (class)
{
/* retry with a dynamically allocated buffer */
while (status == STATUS_BUFFER_OVERFLOW)
{
if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
if (!(buf_ptr = HeapAlloc( GetProcessHeap(), 0, total_size )))
return ERROR_NOT_ENOUGH_MEMORY;
info = (KEY_FULL_INFORMATION *)buf_ptr;
status = NtQueryKey( hkey, KeyFullInformation, buf_ptr, total_size, &total_size );
}
if (status) goto done;
if (class_len && (info->ClassLength/sizeof(WCHAR) + 1 > *class_len))
{
status = STATUS_BUFFER_OVERFLOW;
}
else
{
memcpy( class, buf_ptr + info->ClassOffset, info->ClassLength );
class[info->ClassLength/sizeof(WCHAR)] = 0;
}
}
else status = STATUS_SUCCESS;
if (class_len) *class_len = info->ClassLength / sizeof(WCHAR);
if (subkeys) *subkeys = info->SubKeys;
if (max_subkey) *max_subkey = info->MaxNameLen;
if (max_class) *max_class = info->MaxClassLen;
if (values) *values = info->Values;
if (max_value) *max_value = info->MaxValueNameLen;
if (max_data) *max_data = info->MaxValueDataLen;
if (modif) *modif = *(FILETIME *)&info->LastWriteTime;
done:
if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
return RtlNtStatusToDosError( status );
}
/******************************************************************************
* RegQueryMultipleValuesA [ADVAPI32.@]
*
* Retrieves the type and data for a list of value names associated with a key.
*
* PARAMS
* hKey [I] Handle to an open key.
* val_list [O] Array of VALENT structures that describes the entries.
* num_vals [I] Number of elements in val_list.
* lpValueBuf [O] Pointer to a buffer that receives the data for each value.
* ldwTotsize [I/O] Size of lpValueBuf.
*
* RETURNS
* Success: ERROR_SUCCESS. ldwTotsize contains num bytes copied.
* Failure: nonzero error code from Winerror.h ldwTotsize contains num needed
* bytes.
*/
LSTATUS WINAPI RegQueryMultipleValuesA( HKEY hkey, PVALENTA val_list, DWORD num_vals,
LPSTR lpValueBuf, LPDWORD ldwTotsize )
{
unsigned int i;
DWORD maxBytes = *ldwTotsize;
HRESULT status;
LPSTR bufptr = lpValueBuf;
*ldwTotsize = 0;
TRACE("(%p,%p,%d,%p,%p=%d)\n", hkey, val_list, num_vals, lpValueBuf, ldwTotsize, *ldwTotsize);
for(i=0; i < num_vals; ++i)
{
val_list[i].ve_valuelen=0;
status = RegQueryValueExA(hkey, val_list[i].ve_valuename, NULL, NULL, NULL, &val_list[i].ve_valuelen);
if(status != ERROR_SUCCESS)
{
return status;
}
if(lpValueBuf != NULL && *ldwTotsize + val_list[i].ve_valuelen <= maxBytes)
{
status = RegQueryValueExA(hkey, val_list[i].ve_valuename, NULL, &val_list[i].ve_type,
(LPBYTE)bufptr, &val_list[i].ve_valuelen);
if(status != ERROR_SUCCESS)
{
return status;
}
val_list[i].ve_valueptr = (DWORD_PTR)bufptr;
bufptr += val_list[i].ve_valuelen;
}
*ldwTotsize += val_list[i].ve_valuelen;
}
return lpValueBuf != NULL && *ldwTotsize <= maxBytes ? ERROR_SUCCESS : ERROR_MORE_DATA;
}
/******************************************************************************
* RegQueryMultipleValuesW [ADVAPI32.@]
*
* See RegQueryMultipleValuesA.
*/
LSTATUS WINAPI RegQueryMultipleValuesW( HKEY hkey, PVALENTW val_list, DWORD num_vals,
LPWSTR lpValueBuf, LPDWORD ldwTotsize )
{
unsigned int i;
DWORD maxBytes = *ldwTotsize;
HRESULT status;
LPSTR bufptr = (LPSTR)lpValueBuf;
*ldwTotsize = 0;
TRACE("(%p,%p,%d,%p,%p=%d)\n", hkey, val_list, num_vals, lpValueBuf, ldwTotsize, *ldwTotsize);
for(i=0; i < num_vals; ++i)
{
val_list[i].ve_valuelen=0;
status = RegQueryValueExW(hkey, val_list[i].ve_valuename, NULL, NULL, NULL, &val_list[i].ve_valuelen);
if(status != ERROR_SUCCESS)
{
return status;
}
if(lpValueBuf != NULL && *ldwTotsize + val_list[i].ve_valuelen <= maxBytes)
{
status = RegQueryValueExW(hkey, val_list[i].ve_valuename, NULL, &val_list[i].ve_type,
(LPBYTE)bufptr, &val_list[i].ve_valuelen);
if(status != ERROR_SUCCESS)
{
return status;
}
val_list[i].ve_valueptr = (DWORD_PTR)bufptr;
bufptr += val_list[i].ve_valuelen;
}
*ldwTotsize += val_list[i].ve_valuelen;
}
return lpValueBuf != NULL && *ldwTotsize <= maxBytes ? ERROR_SUCCESS : ERROR_MORE_DATA;
}
/******************************************************************************
* RegQueryInfoKeyA [ADVAPI32.@]
*
* Retrieves information about a registry key.
*
* PARAMS
* hKey [I] Handle to an open key.
* lpClass [O] Class string of the key.
* lpcClass [I/O] size of lpClass.
* lpReserved [I] Reserved; must be NULL.
* lpcSubKeys [O] Number of subkeys contained by the key.
* lpcMaxSubKeyLen [O] Size of the key's subkey with the longest name.
* lpcMaxClassLen [O] Size of the longest string specifying a subkey
* class in TCHARS.
* lpcValues [O] Number of values associated with the key.
* lpcMaxValueNameLen [O] Size of the key's longest value name in TCHARS.
* lpcMaxValueLen [O] Longest data component among the key's values
* lpcbSecurityDescriptor [O] Size of the key's security descriptor.
* lpftLastWriteTime [O] FILETIME structure that is the last write time.
*
* RETURNS
* Success: ERROR_SUCCESS
* Failure: nonzero error code from Winerror.h
*/
LSTATUS WINAPI RegQueryInfoKeyA( HKEY hkey, LPSTR class, LPDWORD class_len, LPDWORD reserved,
LPDWORD subkeys, LPDWORD max_subkey, LPDWORD max_class,
LPDWORD values, LPDWORD max_value, LPDWORD max_data,
LPDWORD security, FILETIME *modif )
{
NTSTATUS status;
char buffer[256], *buf_ptr = buffer;
KEY_FULL_INFORMATION *info = (KEY_FULL_INFORMATION *)buffer;
DWORD total_size, len;
TRACE( "(%p,%p,%d,%p,%p,%p,%p,%p,%p,%p,%p)\n", hkey, class, class_len ? *class_len : 0,
reserved, subkeys, max_subkey, values, max_value, max_data, security, modif );
if (class && !class_len && is_version_nt()) return ERROR_INVALID_PARAMETER;
if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
status = NtQueryKey( hkey, KeyFullInformation, buffer, sizeof(buffer), &total_size );
if (status && status != STATUS_BUFFER_OVERFLOW) goto done;
if (class || class_len)
{
/* retry with a dynamically allocated buffer */
while (status == STATUS_BUFFER_OVERFLOW)
{
if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
if (!(buf_ptr = HeapAlloc( GetProcessHeap(), 0, total_size )))
return ERROR_NOT_ENOUGH_MEMORY;
info = (KEY_FULL_INFORMATION *)buf_ptr;
status = NtQueryKey( hkey, KeyFullInformation, buf_ptr, total_size, &total_size );
}
if (status) goto done;
RtlUnicodeToMultiByteSize( &len, (WCHAR *)(buf_ptr + info->ClassOffset), info->ClassLength);
if (class_len)
{
if (len + 1 > *class_len) status = STATUS_BUFFER_OVERFLOW;
*class_len = len;
}
if (class && !status)
{
RtlUnicodeToMultiByteN( class, len, NULL, (WCHAR *)(buf_ptr + info->ClassOffset),
info->ClassLength );
class[len] = 0;
}
}
else status = STATUS_SUCCESS;
if (subkeys) *subkeys = info->SubKeys;
if (max_subkey) *max_subkey = info->MaxNameLen;
if (max_class) *max_class = info->MaxClassLen;
if (values) *values = info->Values;
if (max_value) *max_value = info->MaxValueNameLen;
if (max_data) *max_data = info->MaxValueDataLen;
if (modif) *modif = *(FILETIME *)&info->LastWriteTime;
done:
if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
return RtlNtStatusToDosError( status );
}
/******************************************************************************
* RegCloseKey [ADVAPI32.@]
*
* Close an open registry key.
*
* PARAMS
* hkey [I] Handle of key to close
*
* RETURNS
* Success: ERROR_SUCCESS
* Failure: Error code
*/
LSTATUS WINAPI RegCloseKey( HKEY hkey )
{
if (!hkey) return ERROR_INVALID_HANDLE;
if (hkey >= (HKEY)0x80000000) return ERROR_SUCCESS;
return RtlNtStatusToDosError( NtClose( hkey ) );
}
/******************************************************************************
* RegDeleteKeyW [ADVAPI32.@]
*
* See RegDeleteKeyA.
*/
LSTATUS WINAPI RegDeleteKeyW( HKEY hkey, LPCWSTR name )
{
DWORD ret;
HKEY tmp;
if (!name) return ERROR_INVALID_PARAMETER;
if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
if (!(ret = RegOpenKeyExW( hkey, name, 0, DELETE, &tmp )))
{
ret = RtlNtStatusToDosError( NtDeleteKey( tmp ) );
RegCloseKey( tmp );
}
TRACE("%s ret=%08x\n", debugstr_w(name), ret);
return ret;
}
/******************************************************************************
* RegDeleteKeyA [ADVAPI32.@]
*
* Delete a registry key.
*
* PARAMS
* hkey [I] Handle to parent key containing the key to delete
* name [I] Name of the key user hkey to delete
*
* NOTES
*
* MSDN is wrong when it says that hkey must be opened with the DELETE access
* right. In reality, it opens a new handle with DELETE access.
*
* RETURNS
* Success: ERROR_SUCCESS
* Failure: Error code
*/
LSTATUS WINAPI RegDeleteKeyA( HKEY hkey, LPCSTR name )
{
DWORD ret;
HKEY tmp;
if (!name) return ERROR_INVALID_PARAMETER;
if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
if (!(ret = RegOpenKeyExA( hkey, name, 0, DELETE, &tmp )))
{
if (!is_version_nt()) /* win95 does recursive key deletes */
{
CHAR name[MAX_PATH];
while(!RegEnumKeyA(tmp, 0, name, sizeof(name)))
{
if(RegDeleteKeyA(tmp, name)) /* recurse */
break;
}
}
ret = RtlNtStatusToDosError( NtDeleteKey( tmp ) );
RegCloseKey( tmp );
}
TRACE("%s ret=%08x\n", debugstr_a(name), ret);
return ret;
}
/******************************************************************************
* RegSetValueExW [ADVAPI32.@]
*
* Set the data and contents of a registry value.
*
* PARAMS
* hkey [I] Handle of key to set value for
* name [I] Name of value to set
* reserved [I] Reserved, must be zero
* type [I] Type of the value being set
* data [I] The new contents of the value to set
* count [I] Size of data
*
* RETURNS
* Success: ERROR_SUCCESS
* Failure: Error code
*/
LSTATUS WINAPI RegSetValueExW( HKEY hkey, LPCWSTR name, DWORD reserved,
DWORD type, CONST BYTE *data, DWORD count )
{
UNICODE_STRING nameW;
/* no need for version check, not implemented on win9x anyway */
if (count && is_string(type))
{
LPCWSTR str = (LPCWSTR)data;
/* if user forgot to count terminating null, add it (yes NT does this) */
if (str[count / sizeof(WCHAR) - 1] && !str[count / sizeof(WCHAR)])
count += sizeof(WCHAR);
}
if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
RtlInitUnicodeString( &nameW, name );
return RtlNtStatusToDosError( NtSetValueKey( hkey, &nameW, 0, type, data, count ) );
}
/******************************************************************************
* RegSetValueExA [ADVAPI32.@]
*
* See RegSetValueExW.
*
* NOTES
* win95 does not care about count for REG_SZ and finds out the len by itself (js)
* NT does definitely care (aj)
*/
LSTATUS WINAPI RegSetValueExA( HKEY hkey, LPCSTR name, DWORD reserved, DWORD type,
CONST BYTE *data, DWORD count )
{
ANSI_STRING nameA;
WCHAR *dataW = NULL;
NTSTATUS status;
if (!is_version_nt()) /* win95 */
{
if (type == REG_SZ)
{
if (!data) return ERROR_INVALID_PARAMETER;
count = strlen((const char *)data) + 1;
}
}
else if (count && is_string(type))
{
/* if user forgot to count terminating null, add it (yes NT does this) */
if (data[count-1] && !data[count]) count++;
}
if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
if (is_string( type )) /* need to convert to Unicode */
{
DWORD lenW;
RtlMultiByteToUnicodeSize( &lenW, (const char *)data, count );
if (!(dataW = HeapAlloc( GetProcessHeap(), 0, lenW ))) return ERROR_OUTOFMEMORY;
RtlMultiByteToUnicodeN( dataW, lenW, NULL, (const char *)data, count );
count = lenW;
data = (BYTE *)dataW;
}
RtlInitAnsiString( &nameA, name );
if (!(status = RtlAnsiStringToUnicodeString( &NtCurrentTeb()->StaticUnicodeString,
&nameA, FALSE )))
{
status = NtSetValueKey( hkey, &NtCurrentTeb()->StaticUnicodeString, 0, type, data, count );
}
HeapFree( GetProcessHeap(), 0, dataW );
return RtlNtStatusToDosError( status );
}
/******************************************************************************
* RegSetValueW [ADVAPI32.@]
*
* Sets the data for the default or unnamed value of a reg key.
*
* PARAMS
* hKey [I] Handle to an open key.
* lpSubKey [I] Name of a subkey of hKey.
* dwType [I] Type of information to store.
* lpData [I] String that contains the data to set for the default value.
* cbData [I] Ignored.
*
* RETURNS
* Success: ERROR_SUCCESS
* Failure: nonzero error code from Winerror.h
*/
LSTATUS WINAPI RegSetValueW( HKEY hkey, LPCWSTR name, DWORD type, LPCWSTR data, DWORD count )
{
HKEY subkey = hkey;
DWORD ret;
TRACE("(%p,%s,%d,%s,%d)\n", hkey, debugstr_w(name), type, debugstr_w(data), count );
if (type != REG_SZ || !data) return ERROR_INVALID_PARAMETER;
if (name && name[0]) /* need to create the subkey */
{
if ((ret = RegCreateKeyW( hkey, name, &subkey )) != ERROR_SUCCESS) return ret;
}
ret = RegSetValueExW( subkey, NULL, 0, REG_SZ, (const BYTE*)data,
(strlenW( data ) + 1) * sizeof(WCHAR) );
if (subkey != hkey) RegCloseKey( subkey );
return ret;
}
/******************************************************************************
* RegSetValueA [ADVAPI32.@]
*
* See RegSetValueW.
*/
LSTATUS WINAPI RegSetValueA( HKEY hkey, LPCSTR name, DWORD type, LPCSTR data, DWORD count )
{
HKEY subkey = hkey;
DWORD ret;
TRACE("(%p,%s,%d,%s,%d)\n", hkey, debugstr_a(name), type, debugstr_a(data), count );
if (type != REG_SZ || !data) return ERROR_INVALID_PARAMETER;
if (name && name[0]) /* need to create the subkey */
{
if ((ret = RegCreateKeyA( hkey, name, &subkey )) != ERROR_SUCCESS) return ret;
}
ret = RegSetValueExA( subkey, NULL, 0, REG_SZ, (const BYTE*)data, strlen(data)+1 );
if (subkey != hkey) RegCloseKey( subkey );
return ret;
}
/******************************************************************************
* RegQueryValueExW [ADVAPI32.@]
*
* See RegQueryValueExA.
*/
LSTATUS WINAPI RegQueryValueExW( HKEY hkey, LPCWSTR name, LPDWORD reserved, LPDWORD type,
LPBYTE data, LPDWORD count )
{
NTSTATUS status;
UNICODE_STRING name_str;
DWORD total_size;
char buffer[256], *buf_ptr = buffer;
KEY_VALUE_PARTIAL_INFORMATION *info = (KEY_VALUE_PARTIAL_INFORMATION *)buffer;
static const int info_size = offsetof( KEY_VALUE_PARTIAL_INFORMATION, Data );
TRACE("(%p,%s,%p,%p,%p,%p=%d)\n",
hkey, debugstr_w(name), reserved, type, data, count,
(count && data) ? *count : 0 );
if ((data && !count) || reserved) return ERROR_INVALID_PARAMETER;
if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
RtlInitUnicodeString( &name_str, name );
if (data) total_size = min( sizeof(buffer), *count + info_size );
else
{
total_size = info_size;
if (count) *count = 0;
}
status = NtQueryValueKey( hkey, &name_str, KeyValuePartialInformation,
buffer, total_size, &total_size );
if (status && status != STATUS_BUFFER_OVERFLOW) goto done;
if (data)
{
/* retry with a dynamically allocated buffer */
while (status == STATUS_BUFFER_OVERFLOW && total_size - info_size <= *count)
{
if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
if (!(buf_ptr = HeapAlloc( GetProcessHeap(), 0, total_size )))
return ERROR_NOT_ENOUGH_MEMORY;
info = (KEY_VALUE_PARTIAL_INFORMATION *)buf_ptr;
status = NtQueryValueKey( hkey, &name_str, KeyValuePartialInformation,
buf_ptr, total_size, &total_size );
}
if (!status)
{
memcpy( data, buf_ptr + info_size, total_size - info_size );
/* if the type is REG_SZ and data is not 0-terminated
* and there is enough space in the buffer NT appends a \0 */
if (total_size - info_size <= *count-sizeof(WCHAR) && is_string(info->Type))
{
WCHAR *ptr = (WCHAR *)(data + total_size - info_size);
if (ptr > (WCHAR *)data && ptr[-1]) *ptr = 0;
}
}
else if (status != STATUS_BUFFER_OVERFLOW) goto done;
}
else status = STATUS_SUCCESS;
if (type) *type = info->Type;
if (count) *count = total_size - info_size;
done:
if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
return RtlNtStatusToDosError(status);
}
/******************************************************************************
* RegQueryValueExA [ADVAPI32.@]
*
* Get the type and contents of a specified value under with a key.
*
* PARAMS
* hkey [I] Handle of the key to query
* name [I] Name of value under hkey to query
* reserved [I] Reserved - must be NULL
* type [O] Destination for the value type, or NULL if not required
* data [O] Destination for the values contents, or NULL if not required
* count [I/O] Size of data, updated with the number of bytes returned
*
* RETURNS
* Success: ERROR_SUCCESS. *count is updated with the number of bytes copied to data.
* Failure: ERROR_INVALID_HANDLE, if hkey is invalid.
* ERROR_INVALID_PARAMETER, if any other parameter is invalid.
* ERROR_MORE_DATA, if on input *count is too small to hold the contents.
*
* NOTES
* MSDN states that if data is too small it is partially filled. In reality
* it remains untouched.
*/
LSTATUS WINAPI RegQueryValueExA( HKEY hkey, LPCSTR name, LPDWORD reserved, LPDWORD type,
LPBYTE data, LPDWORD count )
{
NTSTATUS status;
ANSI_STRING nameA;
DWORD total_size, datalen = 0;
char buffer[256], *buf_ptr = buffer;
KEY_VALUE_PARTIAL_INFORMATION *info = (KEY_VALUE_PARTIAL_INFORMATION *)buffer;
static const int info_size = offsetof( KEY_VALUE_PARTIAL_INFORMATION, Data );
TRACE("(%p,%s,%p,%p,%p,%p=%d)\n",
hkey, debugstr_a(name), reserved, type, data, count, count ? *count : 0 );
if ((data && !count) || reserved) return ERROR_INVALID_PARAMETER;
if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
if (count) datalen = *count;
if (!data && count) *count = 0;
/* this matches Win9x behaviour - NT sets *type to a random value */
if (type) *type = REG_NONE;
RtlInitAnsiString( &nameA, name );
if ((status = RtlAnsiStringToUnicodeString( &NtCurrentTeb()->StaticUnicodeString,
&nameA, FALSE )))
return RtlNtStatusToDosError(status);
status = NtQueryValueKey( hkey, &NtCurrentTeb()->StaticUnicodeString,
KeyValuePartialInformation, buffer, sizeof(buffer), &total_size );
if (status && status != STATUS_BUFFER_OVERFLOW) goto done;
/* we need to fetch the contents for a string type even if not requested,
* because we need to compute the length of the ASCII string. */
if (data || is_string(info->Type))
{
/* retry with a dynamically allocated buffer */
while (status == STATUS_BUFFER_OVERFLOW)
{
if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
if (!(buf_ptr = HeapAlloc( GetProcessHeap(), 0, total_size )))
{
status = STATUS_NO_MEMORY;
goto done;
}
info = (KEY_VALUE_PARTIAL_INFORMATION *)buf_ptr;
status = NtQueryValueKey( hkey, &NtCurrentTeb()->StaticUnicodeString,
KeyValuePartialInformation, buf_ptr, total_size, &total_size );
}
if (status) goto done;
if (is_string(info->Type))
{
DWORD len;
RtlUnicodeToMultiByteSize( &len, (WCHAR *)(buf_ptr + info_size),
total_size - info_size );
if (data && len)
{
if (len > datalen) status = STATUS_BUFFER_OVERFLOW;
else
{
RtlUnicodeToMultiByteN( (char*)data, len, NULL, (WCHAR *)(buf_ptr + info_size),
total_size - info_size );
/* if the type is REG_SZ and data is not 0-terminated
* and there is enough space in the buffer NT appends a \0 */
if (len < datalen && data[len-1]) data[len] = 0;
}
}
total_size = len + info_size;
}
else if (data)
{
if (total_size - info_size > datalen) status = STATUS_BUFFER_OVERFLOW;
else memcpy( data, buf_ptr + info_size, total_size - info_size );
}
}
else status = STATUS_SUCCESS;
if (type) *type = info->Type;
if (count) *count = total_size - info_size;
done:
if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
return RtlNtStatusToDosError(status);
}
/******************************************************************************
* RegQueryValueW [ADVAPI32.@]
*
* Retrieves the data associated with the default or unnamed value of a key.
*
* PARAMS
* hkey [I] Handle to an open key.
* name [I] Name of the subkey of hKey.
* data [O] Receives the string associated with the default value
* of the key.
* count [I/O] Size of lpValue in bytes.
*
* RETURNS
* Success: ERROR_SUCCESS
* Failure: nonzero error code from Winerror.h
*/
LSTATUS WINAPI RegQueryValueW( HKEY hkey, LPCWSTR name, LPWSTR data, LPLONG count )
{
DWORD ret;
HKEY subkey = hkey;
TRACE("(%p,%s,%p,%d)\n", hkey, debugstr_w(name), data, count ? *count : 0 );
if (name && name[0])
{
if ((ret = RegOpenKeyW( hkey, name, &subkey )) != ERROR_SUCCESS) return ret;
}
ret = RegQueryValueExW( subkey, NULL, NULL, NULL, (LPBYTE)data, (LPDWORD)count );
if (subkey != hkey) RegCloseKey( subkey );
if (ret == ERROR_FILE_NOT_FOUND)
{
/* return empty string if default value not found */
if (data) *data = 0;
if (count) *count = sizeof(WCHAR);
ret = ERROR_SUCCESS;
}
return ret;
}
/******************************************************************************
* RegQueryValueA [ADVAPI32.@]
*
* See RegQueryValueW.
*/
LSTATUS WINAPI RegQueryValueA( HKEY hkey, LPCSTR name, LPSTR data, LPLONG count )
{
DWORD ret;
HKEY subkey = hkey;
TRACE("(%p,%s,%p,%d)\n", hkey, debugstr_a(name), data, count ? *count : 0 );
if (name && name[0])
{
if ((ret = RegOpenKeyA( hkey, name, &subkey )) != ERROR_SUCCESS) return ret;
}
ret = RegQueryValueExA( subkey, NULL, NULL, NULL, (LPBYTE)data, (LPDWORD)count );
if (subkey != hkey) RegCloseKey( subkey );
if (ret == ERROR_FILE_NOT_FOUND)
{
/* return empty string if default value not found */
if (data) *data = 0;
if (count) *count = 1;
ret = ERROR_SUCCESS;
}
return ret;
}
/******************************************************************************
* ADVAPI_ApplyRestrictions [internal]
*
* Helper function for RegGetValueA/W.
*/
static VOID ADVAPI_ApplyRestrictions( DWORD dwFlags, DWORD dwType,
DWORD cbData, PLONG ret )
{
/* Check if the type is restricted by the passed flags */
if (*ret == ERROR_SUCCESS || *ret == ERROR_MORE_DATA)
{
DWORD dwMask = 0;
switch (dwType)
{
case REG_NONE: dwMask = RRF_RT_REG_NONE; break;
case REG_SZ: dwMask = RRF_RT_REG_SZ; break;
case REG_EXPAND_SZ: dwMask = RRF_RT_REG_EXPAND_SZ; break;
case REG_MULTI_SZ: dwMask = RRF_RT_REG_MULTI_SZ; break;
case REG_BINARY: dwMask = RRF_RT_REG_BINARY; break;
case REG_DWORD: dwMask = RRF_RT_REG_DWORD; break;
case REG_QWORD: dwMask = RRF_RT_REG_QWORD; break;
}
if (dwFlags & dwMask)
{
/* Type is not restricted, check for size mismatch */
if (dwType == REG_BINARY)
{
DWORD cbExpect = 0;
if ((dwFlags & RRF_RT_ANY) == RRF_RT_DWORD)
cbExpect = 4;
else if ((dwFlags & RRF_RT_ANY) == RRF_RT_QWORD)
cbExpect = 8;
if (cbExpect && cbData != cbExpect)
*ret = ERROR_DATATYPE_MISMATCH;
}
}
else *ret = ERROR_UNSUPPORTED_TYPE;
}
}
/******************************************************************************
* RegGetValueW [ADVAPI32.@]
*
* Retrieves the type and data for a value name associated with a key,
* optionally expanding its content and restricting its type.
*
* PARAMS
* hKey [I] Handle to an open key.
* pszSubKey [I] Name of the subkey of hKey.
* pszValue [I] Name of value under hKey/szSubKey to query.
* dwFlags [I] Flags restricting the value type to retrieve.
* pdwType [O] Destination for the values type, may be NULL.
* pvData [O] Destination for the values content, may be NULL.
* pcbData [I/O] Size of pvData, updated with the size in bytes required to
* retrieve the whole content, including the trailing '\0'
* for strings.
*
* RETURNS
* Success: ERROR_SUCCESS
* Failure: nonzero error code from Winerror.h
*
* NOTES
* - Unless RRF_NOEXPAND is specified, REG_EXPAND_SZ values are automatically
* expanded and pdwType is set to REG_SZ instead.
* - Restrictions are applied after expanding, using RRF_RT_REG_EXPAND_SZ
* without RRF_NOEXPAND is thus not allowed.
* An exception is the case where RRF_RT_ANY is specified, because then
* RRF_NOEXPAND is allowed.
*/
LSTATUS WINAPI RegGetValueW( HKEY hKey, LPCWSTR pszSubKey, LPCWSTR pszValue,
DWORD dwFlags, LPDWORD pdwType, PVOID pvData,
LPDWORD pcbData )
{
DWORD dwType, cbData = pcbData ? *pcbData : 0;
PVOID pvBuf = NULL;
LONG ret;
TRACE("(%p,%s,%s,%d,%p,%p,%p=%d)\n",
hKey, debugstr_w(pszSubKey), debugstr_w(pszValue), dwFlags, pdwType,
pvData, pcbData, cbData);
if (pvData && !pcbData)
return ERROR_INVALID_PARAMETER;
if ((dwFlags & RRF_RT_REG_EXPAND_SZ) && !(dwFlags & RRF_NOEXPAND) &&
((dwFlags & RRF_RT_ANY) != RRF_RT_ANY))
return ERROR_INVALID_PARAMETER;
if (pszSubKey && pszSubKey[0])
{
ret = RegOpenKeyExW(hKey, pszSubKey, 0, KEY_QUERY_VALUE, &hKey);
if (ret != ERROR_SUCCESS) return ret;
}
ret = RegQueryValueExW(hKey, pszValue, NULL, &dwType, pvData, &cbData);
/* If we are going to expand we need to read in the whole the value even
* if the passed buffer was too small as the expanded string might be
* smaller than the unexpanded one and could fit into cbData bytes. */
if ((ret == ERROR_SUCCESS || ret == ERROR_MORE_DATA) &&
dwType == REG_EXPAND_SZ && !(dwFlags & RRF_NOEXPAND))
{
do {
HeapFree(GetProcessHeap(), 0, pvBuf);
pvBuf = HeapAlloc(GetProcessHeap(), 0, cbData);
if (!pvBuf)
{
ret = ERROR_NOT_ENOUGH_MEMORY;
break;
}
if (ret == ERROR_MORE_DATA || !pvData)
ret = RegQueryValueExW(hKey, pszValue, NULL,
&dwType, pvBuf, &cbData);
else
{
/* Even if cbData was large enough we have to copy the
* string since ExpandEnvironmentStrings can't handle
* overlapping buffers. */
CopyMemory(pvBuf, pvData, cbData);
}
/* Both the type or the value itself could have been modified in
* between so we have to keep retrying until the buffer is large
* enough or we no longer have to expand the value. */
} while (dwType == REG_EXPAND_SZ && ret == ERROR_MORE_DATA);
if (ret == ERROR_SUCCESS)
{
/* Recheck dwType in case it changed since the first call */
if (dwType == REG_EXPAND_SZ)
{
cbData = ExpandEnvironmentStringsW(pvBuf, pvData,
pcbData ? *pcbData : 0) * sizeof(WCHAR);
dwType = REG_SZ;
if(pvData && pcbData && cbData > *pcbData)
ret = ERROR_MORE_DATA;
}
else if (pvData)
CopyMemory(pvData, pvBuf, *pcbData);
}
HeapFree(GetProcessHeap(), 0, pvBuf);
}
if (pszSubKey && pszSubKey[0])
RegCloseKey(hKey);
ADVAPI_ApplyRestrictions(dwFlags, dwType, cbData, &ret);
if (pvData && ret != ERROR_SUCCESS && (dwFlags & RRF_ZEROONFAILURE))
ZeroMemory(pvData, *pcbData);
if (pdwType) *pdwType = dwType;
if (pcbData) *pcbData = cbData;
return ret;
}
/******************************************************************************
* RegGetValueA [ADVAPI32.@]
*
* See RegGetValueW.
*/
LSTATUS WINAPI RegGetValueA( HKEY hKey, LPCSTR pszSubKey, LPCSTR pszValue,
DWORD dwFlags, LPDWORD pdwType, PVOID pvData,
LPDWORD pcbData )
{
DWORD dwType, cbData = pcbData ? *pcbData : 0;
PVOID pvBuf = NULL;
LONG ret;
TRACE("(%p,%s,%s,%d,%p,%p,%p=%d)\n",
hKey, pszSubKey, pszValue, dwFlags, pdwType, pvData, pcbData,
cbData);
if (pvData && !pcbData)
return ERROR_INVALID_PARAMETER;
if ((dwFlags & RRF_RT_REG_EXPAND_SZ) && !(dwFlags & RRF_NOEXPAND) &&
((dwFlags & RRF_RT_ANY) != RRF_RT_ANY))
return ERROR_INVALID_PARAMETER;
if (pszSubKey && pszSubKey[0])
{
ret = RegOpenKeyExA(hKey, pszSubKey, 0, KEY_QUERY_VALUE, &hKey);
if (ret != ERROR_SUCCESS) return ret;
}
ret = RegQueryValueExA(hKey, pszValue, NULL, &dwType, pvData, &cbData);
/* If we are going to expand we need to read in the whole the value even
* if the passed buffer was too small as the expanded string might be
* smaller than the unexpanded one and could fit into cbData bytes. */
if ((ret == ERROR_SUCCESS || ret == ERROR_MORE_DATA) &&
dwType == REG_EXPAND_SZ && !(dwFlags & RRF_NOEXPAND))
{
do {
HeapFree(GetProcessHeap(), 0, pvBuf);
pvBuf = HeapAlloc(GetProcessHeap(), 0, cbData);
if (!pvBuf)
{
ret = ERROR_NOT_ENOUGH_MEMORY;
break;
}
if (ret == ERROR_MORE_DATA || !pvData)
ret = RegQueryValueExA(hKey, pszValue, NULL,
&dwType, pvBuf, &cbData);
else
{
/* Even if cbData was large enough we have to copy the
* string since ExpandEnvironmentStrings can't handle
* overlapping buffers. */
CopyMemory(pvBuf, pvData, cbData);
}
/* Both the type or the value itself could have been modified in
* between so we have to keep retrying until the buffer is large
* enough or we no longer have to expand the value. */
} while (dwType == REG_EXPAND_SZ && ret == ERROR_MORE_DATA);
if (ret == ERROR_SUCCESS)
{
/* Recheck dwType in case it changed since the first call */
if (dwType == REG_EXPAND_SZ)
{
cbData = ExpandEnvironmentStringsA(pvBuf, pvData,
pcbData ? *pcbData : 0);
dwType = REG_SZ;
if(pvData && pcbData && cbData > *pcbData)
ret = ERROR_MORE_DATA;
}
else if (pvData)
CopyMemory(pvData, pvBuf, *pcbData);
}
HeapFree(GetProcessHeap(), 0, pvBuf);
}
if (pszSubKey && pszSubKey[0])
RegCloseKey(hKey);
ADVAPI_ApplyRestrictions(dwFlags, dwType, cbData, &ret);
if (pvData && ret != ERROR_SUCCESS && (dwFlags & RRF_ZEROONFAILURE))
ZeroMemory(pvData, *pcbData);
if (pdwType) *pdwType = dwType;
if (pcbData) *pcbData = cbData;
return ret;
}
/******************************************************************************
* RegEnumValueW [ADVAPI32.@]
*
* Enumerates the values for the specified open registry key.
*
* PARAMS
* hkey [I] Handle to key to query
* index [I] Index of value to query
* value [O] Value string
* val_count [I/O] Size of value buffer (in wchars)
* reserved [I] Reserved
* type [O] Type code
* data [O] Value data
* count [I/O] Size of data buffer (in bytes)
*
* RETURNS
* Success: ERROR_SUCCESS
* Failure: nonzero error code from Winerror.h
*/
LSTATUS WINAPI RegEnumValueW( HKEY hkey, DWORD index, LPWSTR value, LPDWORD val_count,
LPDWORD reserved, LPDWORD type, LPBYTE data, LPDWORD count )
{
NTSTATUS status;
DWORD total_size;
char buffer[256], *buf_ptr = buffer;
KEY_VALUE_FULL_INFORMATION *info = (KEY_VALUE_FULL_INFORMATION *)buffer;
static const int info_size = offsetof( KEY_VALUE_FULL_INFORMATION, Name );
TRACE("(%p,%d,%p,%p,%p,%p,%p,%p)\n",
hkey, index, value, val_count, reserved, type, data, count );
/* NT only checks count, not val_count */
if ((data && !count) || reserved) return ERROR_INVALID_PARAMETER;
if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
total_size = info_size + (MAX_PATH + 1) * sizeof(WCHAR);
if (data) total_size += *count;
total_size = min( sizeof(buffer), total_size );
status = NtEnumerateValueKey( hkey, index, KeyValueFullInformation,
buffer, total_size, &total_size );
if (status && status != STATUS_BUFFER_OVERFLOW) goto done;
if (value || data)
{
/* retry with a dynamically allocated buffer */
while (status == STATUS_BUFFER_OVERFLOW)
{
if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
if (!(buf_ptr = HeapAlloc( GetProcessHeap(), 0, total_size )))
return ERROR_NOT_ENOUGH_MEMORY;
info = (KEY_VALUE_FULL_INFORMATION *)buf_ptr;
status = NtEnumerateValueKey( hkey, index, KeyValueFullInformation,
buf_ptr, total_size, &total_size );
}
if (status) goto done;
if (value)
{
if (info->NameLength/sizeof(WCHAR) >= *val_count)
{
status = STATUS_BUFFER_OVERFLOW;
goto overflow;
}
memcpy( value, info->Name, info->NameLength );
*val_count = info->NameLength / sizeof(WCHAR);
value[*val_count] = 0;
}
if (data)
{
if (total_size - info->DataOffset > *count)
{
status = STATUS_BUFFER_OVERFLOW;
goto overflow;
}
memcpy( data, buf_ptr + info->DataOffset, total_size - info->DataOffset );
if (total_size - info->DataOffset <= *count-sizeof(WCHAR) && is_string(info->Type))
{
/* if the type is REG_SZ and data is not 0-terminated
* and there is enough space in the buffer NT appends a \0 */
WCHAR *ptr = (WCHAR *)(data + total_size - info->DataOffset);
if (ptr > (WCHAR *)data && ptr[-1]) *ptr = 0;
}
}
}
else status = STATUS_SUCCESS;
overflow:
if (type) *type = info->Type;
if (count) *count = info->DataLength;
done:
if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
return RtlNtStatusToDosError(status);
}
/******************************************************************************
* RegEnumValueA [ADVAPI32.@]
*
* See RegEnumValueW.
*/
LSTATUS WINAPI RegEnumValueA( HKEY hkey, DWORD index, LPSTR value, LPDWORD val_count,
LPDWORD reserved, LPDWORD type, LPBYTE data, LPDWORD count )
{
NTSTATUS status;
DWORD total_size;
char buffer[256], *buf_ptr = buffer;
KEY_VALUE_FULL_INFORMATION *info = (KEY_VALUE_FULL_INFORMATION *)buffer;
static const int info_size = offsetof( KEY_VALUE_FULL_INFORMATION, Name );
TRACE("(%p,%d,%p,%p,%p,%p,%p,%p)\n",
hkey, index, value, val_count, reserved, type, data, count );
/* NT only checks count, not val_count */
if ((data && !count) || reserved) return ERROR_INVALID_PARAMETER;
if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
total_size = info_size + (MAX_PATH + 1) * sizeof(WCHAR);
if (data) total_size += *count;
total_size = min( sizeof(buffer), total_size );
status = NtEnumerateValueKey( hkey, index, KeyValueFullInformation,
buffer, total_size, &total_size );
if (status && status != STATUS_BUFFER_OVERFLOW) goto done;
/* we need to fetch the contents for a string type even if not requested,
* because we need to compute the length of the ASCII string. */
if (value || data || is_string(info->Type))
{
/* retry with a dynamically allocated buffer */
while (status == STATUS_BUFFER_OVERFLOW)
{
if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
if (!(buf_ptr = HeapAlloc( GetProcessHeap(), 0, total_size )))
return ERROR_NOT_ENOUGH_MEMORY;
info = (KEY_VALUE_FULL_INFORMATION *)buf_ptr;
status = NtEnumerateValueKey( hkey, index, KeyValueFullInformation,
buf_ptr, total_size, &total_size );
}
if (status) goto done;
if (is_string(info->Type))
{
DWORD len;
RtlUnicodeToMultiByteSize( &len, (WCHAR *)(buf_ptr + info->DataOffset),
total_size - info->DataOffset );
if (data && len)
{
if (len > *count) status = STATUS_BUFFER_OVERFLOW;
else
{
RtlUnicodeToMultiByteN( (char*)data, len, NULL, (WCHAR *)(buf_ptr + info->DataOffset),
total_size - info->DataOffset );
/* if the type is REG_SZ and data is not 0-terminated
* and there is enough space in the buffer NT appends a \0 */
if (len < *count && data[len-1]) data[len] = 0;
}
}
info->DataLength = len;
}
else if (data)
{
if (total_size - info->DataOffset > *count) status = STATUS_BUFFER_OVERFLOW;
else memcpy( data, buf_ptr + info->DataOffset, total_size - info->DataOffset );
}
if (value && !status)
{
DWORD len;
RtlUnicodeToMultiByteSize( &len, info->Name, info->NameLength );
if (len >= *val_count)
{
status = STATUS_BUFFER_OVERFLOW;
if (*val_count)
{
len = *val_count - 1;
RtlUnicodeToMultiByteN( value, len, NULL, info->Name, info->NameLength );
value[len] = 0;
}
}
else
{
RtlUnicodeToMultiByteN( value, len, NULL, info->Name, info->NameLength );
value[len] = 0;
*val_count = len;
}
}
}
else status = STATUS_SUCCESS;
if (type) *type = info->Type;
if (count) *count = info->DataLength;
done:
if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
return RtlNtStatusToDosError(status);
}
/******************************************************************************
* RegDeleteValueW [ADVAPI32.@]
*
* See RegDeleteValueA.
*/
LSTATUS WINAPI RegDeleteValueW( HKEY hkey, LPCWSTR name )
{
UNICODE_STRING nameW;
if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
RtlInitUnicodeString( &nameW, name );
return RtlNtStatusToDosError( NtDeleteValueKey( hkey, &nameW ) );
}
/******************************************************************************
* RegDeleteValueA [ADVAPI32.@]
*
* Delete a value from the registry.
*
* PARAMS
* hkey [I] Registry handle of the key holding the value
* name [I] Name of the value under hkey to delete
*
* RETURNS
* Success: ERROR_SUCCESS
* Failure: nonzero error code from Winerror.h
*/
LSTATUS WINAPI RegDeleteValueA( HKEY hkey, LPCSTR name )
{
STRING nameA;
NTSTATUS status;
if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
RtlInitAnsiString( &nameA, name );
if (!(status = RtlAnsiStringToUnicodeString( &NtCurrentTeb()->StaticUnicodeString,
&nameA, FALSE )))
status = NtDeleteValueKey( hkey, &NtCurrentTeb()->StaticUnicodeString );
return RtlNtStatusToDosError( status );
}
/******************************************************************************
* RegLoadKeyW [ADVAPI32.@]
*
* Create a subkey under HKEY_USERS or HKEY_LOCAL_MACHINE and store
* registration information from a specified file into that subkey.
*
* PARAMS
* hkey [I] Handle of open key
* subkey [I] Address of name of subkey
* filename [I] Address of filename for registry information
*
* RETURNS
* Success: ERROR_SUCCESS
* Failure: nonzero error code from Winerror.h
*/
LSTATUS WINAPI RegLoadKeyW( HKEY hkey, LPCWSTR subkey, LPCWSTR filename )
{
OBJECT_ATTRIBUTES destkey, file;
UNICODE_STRING subkeyW, filenameW;
NTSTATUS status;
if (!(hkey = get_special_root_hkey(hkey))) return ERROR_INVALID_HANDLE;
destkey.Length = sizeof(destkey);
destkey.RootDirectory = hkey; /* root key: HKLM or HKU */
destkey.ObjectName = &subkeyW; /* name of the key */
destkey.Attributes = 0;
destkey.SecurityDescriptor = NULL;
destkey.SecurityQualityOfService = NULL;
RtlInitUnicodeString(&subkeyW, subkey);
file.Length = sizeof(file);
file.RootDirectory = NULL;
file.ObjectName = &filenameW; /* file containing the hive */
file.Attributes = OBJ_CASE_INSENSITIVE;
file.SecurityDescriptor = NULL;
file.SecurityQualityOfService = NULL;
RtlDosPathNameToNtPathName_U(filename, &filenameW, NULL, NULL);
status = NtLoadKey(&destkey, &file);
RtlFreeUnicodeString(&filenameW);
return RtlNtStatusToDosError( status );
}
/******************************************************************************
* RegLoadKeyA [ADVAPI32.@]
*
* See RegLoadKeyW.
*/
LSTATUS WINAPI RegLoadKeyA( HKEY hkey, LPCSTR subkey, LPCSTR filename )
{
UNICODE_STRING subkeyW, filenameW;
STRING subkeyA, filenameA;
NTSTATUS status;
LONG ret;
RtlInitAnsiString(&subkeyA, subkey);
RtlInitAnsiString(&filenameA, filename);
RtlInitUnicodeString(&subkeyW, NULL);
RtlInitUnicodeString(&filenameW, NULL);
if (!(status = RtlAnsiStringToUnicodeString(&subkeyW, &subkeyA, TRUE)) &&
!(status = RtlAnsiStringToUnicodeString(&filenameW, &filenameA, TRUE)))
{
ret = RegLoadKeyW(hkey, subkeyW.Buffer, filenameW.Buffer);
}
else ret = RtlNtStatusToDosError(status);
RtlFreeUnicodeString(&subkeyW);
RtlFreeUnicodeString(&filenameW);
return ret;
}
/******************************************************************************
* RegSaveKeyW [ADVAPI32.@]
*
* Save a key and all of its subkeys and values to a new file in the standard format.
*
* PARAMS
* hkey [I] Handle of key where save begins
* lpFile [I] Address of filename to save to
* sa [I] Address of security structure
*
* RETURNS
* Success: ERROR_SUCCESS
* Failure: nonzero error code from Winerror.h
*/
LSTATUS WINAPI RegSaveKeyW( HKEY hkey, LPCWSTR file, LPSECURITY_ATTRIBUTES sa )
{
static const WCHAR format[] =
{'r','e','g','%','0','4','x','.','t','m','p',0};
WCHAR buffer[MAX_PATH];
int count = 0;
LPWSTR nameW;
DWORD ret, err;
HANDLE handle;
TRACE( "(%p,%s,%p)\n", hkey, debugstr_w(file), sa );
if (!file || !*file) return ERROR_INVALID_PARAMETER;
if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
err = GetLastError();
GetFullPathNameW( file, sizeof(buffer)/sizeof(WCHAR), buffer, &nameW );
for (;;)
{
snprintfW( nameW, 16, format, count++ );
handle = CreateFileW( buffer, GENERIC_WRITE, 0, NULL,
CREATE_NEW, FILE_ATTRIBUTE_NORMAL, 0 );
if (handle != INVALID_HANDLE_VALUE) break;
if ((ret = GetLastError()) != ERROR_FILE_EXISTS) goto done;
/* Something gone haywire ? Please report if this happens abnormally */
if (count >= 100)
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);
}
ret = RtlNtStatusToDosError(NtSaveKey(hkey, handle));
CloseHandle( handle );
if (!ret)
{
if (!MoveFileExW( buffer, file, MOVEFILE_REPLACE_EXISTING ))
{
ERR( "Failed to move %s to %s\n", debugstr_w(buffer),
debugstr_w(file) );
ret = GetLastError();
}
}
if (ret) DeleteFileW( buffer );
done:
SetLastError( err ); /* restore last error code */
return ret;
}
/******************************************************************************
* RegSaveKeyA [ADVAPI32.@]
*
* See RegSaveKeyW.
*/
LSTATUS WINAPI RegSaveKeyA( HKEY hkey, LPCSTR file, LPSECURITY_ATTRIBUTES sa )
{
UNICODE_STRING *fileW = &NtCurrentTeb()->StaticUnicodeString;
NTSTATUS status;
STRING fileA;
RtlInitAnsiString(&fileA, file);
if ((status = RtlAnsiStringToUnicodeString(fileW, &fileA, FALSE)))
return RtlNtStatusToDosError( status );
return RegSaveKeyW(hkey, fileW->Buffer, sa);
}
/******************************************************************************
* RegRestoreKeyW [ADVAPI32.@]
*
* Read the registry information from a file and copy it over a key.
*
* PARAMS
* hkey [I] Handle of key where restore begins
* lpFile [I] Address of filename containing saved tree
* dwFlags [I] Optional flags
*
* RETURNS
* Success: ERROR_SUCCESS
* Failure: nonzero error code from Winerror.h
*/
LSTATUS WINAPI RegRestoreKeyW( HKEY hkey, LPCWSTR lpFile, DWORD dwFlags )
{
TRACE("(%p,%s,%d)\n",hkey,debugstr_w(lpFile),dwFlags);
/* It seems to do this check before the hkey check */
if (!lpFile || !*lpFile)
return ERROR_INVALID_PARAMETER;
FIXME("(%p,%s,%d): stub\n",hkey,debugstr_w(lpFile),dwFlags);
/* Check for file existence */
return ERROR_SUCCESS;
}
/******************************************************************************
* RegRestoreKeyA [ADVAPI32.@]
*
* See RegRestoreKeyW.
*/
LSTATUS WINAPI RegRestoreKeyA( HKEY hkey, LPCSTR lpFile, DWORD dwFlags )
{
UNICODE_STRING lpFileW;
LONG ret;
RtlCreateUnicodeStringFromAsciiz( &lpFileW, lpFile );
ret = RegRestoreKeyW( hkey, lpFileW.Buffer, dwFlags );
RtlFreeUnicodeString( &lpFileW );
return ret;
}
/******************************************************************************
* RegUnLoadKeyW [ADVAPI32.@]
*
* Unload a registry key and its subkeys from the registry.
*
* PARAMS
* hkey [I] Handle of open key
* lpSubKey [I] Address of name of subkey to unload
*
* RETURNS
* Success: ERROR_SUCCESS
* Failure: nonzero error code from Winerror.h
*/
LSTATUS WINAPI RegUnLoadKeyW( HKEY hkey, LPCWSTR lpSubKey )
{
DWORD ret;
HKEY shkey;
OBJECT_ATTRIBUTES attr;
UNICODE_STRING subkey;
TRACE("(%p,%s)\n",hkey, debugstr_w(lpSubKey));
ret = RegOpenKeyW(hkey,lpSubKey,&shkey);
if( ret )
return ERROR_INVALID_PARAMETER;
RtlInitUnicodeString(&subkey, lpSubKey);
InitializeObjectAttributes(&attr, &subkey, OBJ_CASE_INSENSITIVE, shkey, NULL);
ret = RtlNtStatusToDosError(NtUnloadKey(&attr));
RegCloseKey(shkey);
return ret;
}
/******************************************************************************
* RegUnLoadKeyA [ADVAPI32.@]
*
* See RegUnLoadKeyW.
*/
LSTATUS WINAPI RegUnLoadKeyA( HKEY hkey, LPCSTR lpSubKey )
{
UNICODE_STRING lpSubKeyW;
LONG ret;
RtlCreateUnicodeStringFromAsciiz( &lpSubKeyW, lpSubKey );
ret = RegUnLoadKeyW( hkey, lpSubKeyW.Buffer );
RtlFreeUnicodeString( &lpSubKeyW );
return ret;
}
/******************************************************************************
* RegReplaceKeyW [ADVAPI32.@]
*
* Replace the file backing a registry key and all its subkeys with another file.
*
* PARAMS
* hkey [I] Handle of open key
* lpSubKey [I] Address of name of subkey
* lpNewFile [I] Address of filename for file with new data
* lpOldFile [I] Address of filename for backup file
*
* RETURNS
* Success: ERROR_SUCCESS
* Failure: nonzero error code from Winerror.h
*/
LSTATUS WINAPI RegReplaceKeyW( HKEY hkey, LPCWSTR lpSubKey, LPCWSTR lpNewFile,
LPCWSTR lpOldFile )
{
FIXME("(%p,%s,%s,%s): stub\n", hkey, debugstr_w(lpSubKey),
debugstr_w(lpNewFile),debugstr_w(lpOldFile));
return ERROR_SUCCESS;
}
/******************************************************************************
* RegReplaceKeyA [ADVAPI32.@]
*
* See RegReplaceKeyW.
*/
LSTATUS WINAPI RegReplaceKeyA( HKEY hkey, LPCSTR lpSubKey, LPCSTR lpNewFile,
LPCSTR lpOldFile )
{
UNICODE_STRING lpSubKeyW;
UNICODE_STRING lpNewFileW;
UNICODE_STRING lpOldFileW;
LONG ret;
RtlCreateUnicodeStringFromAsciiz( &lpSubKeyW, lpSubKey );
RtlCreateUnicodeStringFromAsciiz( &lpOldFileW, lpOldFile );
RtlCreateUnicodeStringFromAsciiz( &lpNewFileW, lpNewFile );
ret = RegReplaceKeyW( hkey, lpSubKeyW.Buffer, lpNewFileW.Buffer, lpOldFileW.Buffer );
RtlFreeUnicodeString( &lpOldFileW );
RtlFreeUnicodeString( &lpNewFileW );
RtlFreeUnicodeString( &lpSubKeyW );
return ret;
}
/******************************************************************************
* RegSetKeySecurity [ADVAPI32.@]
*
* Set the security of an open registry key.
*
* PARAMS
* hkey [I] Open handle of key to set
* SecurityInfo [I] Descriptor contents
* pSecurityDesc [I] Address of descriptor for key
*
* RETURNS
* Success: ERROR_SUCCESS
* Failure: nonzero error code from Winerror.h
*/
LSTATUS WINAPI RegSetKeySecurity( HKEY hkey, SECURITY_INFORMATION SecurityInfo,
PSECURITY_DESCRIPTOR pSecurityDesc )
{
TRACE("(%p,%d,%p)\n",hkey,SecurityInfo,pSecurityDesc);
/* It seems to perform this check before the hkey check */
if ((SecurityInfo & OWNER_SECURITY_INFORMATION) ||
(SecurityInfo & GROUP_SECURITY_INFORMATION) ||
(SecurityInfo & DACL_SECURITY_INFORMATION) ||
(SecurityInfo & SACL_SECURITY_INFORMATION)) {
/* Param OK */
} else
return ERROR_INVALID_PARAMETER;
if (!pSecurityDesc)
return ERROR_INVALID_PARAMETER;
FIXME(":(%p,%d,%p): stub\n",hkey,SecurityInfo,pSecurityDesc);
return ERROR_SUCCESS;
}
/******************************************************************************
* RegGetKeySecurity [ADVAPI32.@]
*
* Get a copy of the security descriptor for a given registry key.
*
* PARAMS
* hkey [I] Open handle of key to set
* SecurityInformation [I] Descriptor contents
* pSecurityDescriptor [O] Address of descriptor for key
* lpcbSecurityDescriptor [I/O] Address of size of buffer and description
*
* RETURNS
* Success: ERROR_SUCCESS
* Failure: Error code
*/
LSTATUS WINAPI RegGetKeySecurity( HKEY hkey, SECURITY_INFORMATION SecurityInformation,
PSECURITY_DESCRIPTOR pSecurityDescriptor,
LPDWORD lpcbSecurityDescriptor )
{
TRACE("(%p,%d,%p,%d)\n",hkey,SecurityInformation,pSecurityDescriptor,
*lpcbSecurityDescriptor);
if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
return RtlNtStatusToDosError( NtQuerySecurityObject( hkey,
SecurityInformation, pSecurityDescriptor,
*lpcbSecurityDescriptor, lpcbSecurityDescriptor ) );
}
/******************************************************************************
* RegFlushKey [ADVAPI32.@]
*
* Immediately write a registry key to registry.
*
* PARAMS
* hkey [I] Handle of key to write
*
* RETURNS
* Success: ERROR_SUCCESS
* Failure: Error code
*/
LSTATUS WINAPI RegFlushKey( HKEY hkey )
{
hkey = get_special_root_hkey( hkey );
if (!hkey) return ERROR_INVALID_HANDLE;
return RtlNtStatusToDosError( NtFlushKey( hkey ) );
}
/******************************************************************************
* RegConnectRegistryW [ADVAPI32.@]
*
* Establish a connection to a predefined registry key on another computer.
*
* PARAMS
* lpMachineName [I] Address of name of remote computer
* hHey [I] Predefined registry handle
* phkResult [I] Address of buffer for remote registry handle
*
* RETURNS
* Success: ERROR_SUCCESS
* Failure: nonzero error code from Winerror.h
*/
LSTATUS WINAPI RegConnectRegistryW( LPCWSTR lpMachineName, HKEY hKey,
PHKEY phkResult )
{
LONG ret;
TRACE("(%s,%p,%p): stub\n",debugstr_w(lpMachineName),hKey,phkResult);
if (!lpMachineName || !*lpMachineName) {
/* Use the local machine name */
ret = RegOpenKeyW( hKey, NULL, phkResult );
}
else {
WCHAR compName[MAX_COMPUTERNAME_LENGTH + 1];
DWORD len = sizeof(compName) / sizeof(WCHAR);
/* MSDN says lpMachineName must start with \\ : not so */
if( lpMachineName[0] == '\\' && lpMachineName[1] == '\\')
lpMachineName += 2;
if (GetComputerNameW(compName, &len))
{
if (!strcmpiW(lpMachineName, compName))
ret = RegOpenKeyW(hKey, NULL, phkResult);
else
{
FIXME("Connect to %s is not supported.\n",debugstr_w(lpMachineName));
ret = ERROR_BAD_NETPATH;
}
}
else
ret = GetLastError();
}
return ret;
}
/******************************************************************************
* RegConnectRegistryA [ADVAPI32.@]
*
* See RegConnectRegistryW.
*/
LSTATUS WINAPI RegConnectRegistryA( LPCSTR machine, HKEY hkey, PHKEY reskey )
{
UNICODE_STRING machineW;
LONG ret;
RtlCreateUnicodeStringFromAsciiz( &machineW, machine );
ret = RegConnectRegistryW( machineW.Buffer, hkey, reskey );
RtlFreeUnicodeString( &machineW );
return ret;
}
/******************************************************************************
* RegNotifyChangeKeyValue [ADVAPI32.@]
*
* Notify the caller about changes to the attributes or contents of a registry key.
*
* PARAMS
* hkey [I] Handle of key to watch
* fWatchSubTree [I] Flag for subkey notification
* fdwNotifyFilter [I] Changes to be reported
* hEvent [I] Handle of signaled event
* fAsync [I] Flag for asynchronous reporting
*
* RETURNS
* Success: ERROR_SUCCESS
* Failure: nonzero error code from Winerror.h
*/
LSTATUS WINAPI RegNotifyChangeKeyValue( HKEY hkey, BOOL fWatchSubTree,
DWORD fdwNotifyFilter, HANDLE hEvent,
BOOL fAsync )
{
NTSTATUS status;
IO_STATUS_BLOCK iosb;
hkey = get_special_root_hkey( hkey );
if (!hkey) return ERROR_INVALID_HANDLE;
TRACE("(%p,%i,%d,%p,%i)\n", hkey, fWatchSubTree, fdwNotifyFilter,
hEvent, fAsync);
status = NtNotifyChangeKey( hkey, hEvent, NULL, NULL, &iosb,
fdwNotifyFilter, fAsync, NULL, 0,
fWatchSubTree);
if (status && status != STATUS_TIMEOUT)
return RtlNtStatusToDosError( status );
return ERROR_SUCCESS;
}
/******************************************************************************
* RegOpenUserClassesRoot [ADVAPI32.@]
*
* Open the HKEY_CLASSES_ROOT key for a user.
*
* PARAMS
* hToken [I] Handle of token representing the user
* dwOptions [I] Reserved, must be 0
* samDesired [I] Desired access rights
* phkResult [O] Destination for the resulting key handle
*
* RETURNS
* Success: ERROR_SUCCESS
* Failure: nonzero error code from Winerror.h
*
* NOTES
* On Windows 2000 and upwards the HKEY_CLASSES_ROOT key is a view of the
* "HKEY_LOCAL_MACHINE\Software\Classes" and the
* "HKEY_CURRENT_USER\Software\Classes" keys merged together.
*/
LSTATUS WINAPI RegOpenUserClassesRoot(
HANDLE hToken,
DWORD dwOptions,
REGSAM samDesired,
PHKEY phkResult
)
{
FIXME("(%p, 0x%x, 0x%x, %p) semi-stub\n", hToken, dwOptions, samDesired, phkResult);
*phkResult = HKEY_CLASSES_ROOT;
return ERROR_SUCCESS;
}
/******************************************************************************
* load_string [Internal]
*
* This is basically a copy of user32/resource.c's LoadStringW. Necessary to
* avoid importing user32, which is higher level than advapi32. Helper for
* RegLoadMUIString.
*/
static int load_string(HINSTANCE hModule, UINT resId, LPWSTR pwszBuffer, INT cMaxChars)
{
HGLOBAL hMemory;
HRSRC hResource;
WCHAR *pString;
int idxString;
/* Negative values have to be inverted. */
if (HIWORD(resId) == 0xffff)
resId = (UINT)(-((INT)resId));
/* Load the resource into memory and get a pointer to it. */
hResource = FindResourceW(hModule, MAKEINTRESOURCEW(LOWORD(resId >> 4) + 1), (LPWSTR)RT_STRING);
if (!hResource) return 0;
hMemory = LoadResource(hModule, hResource);
if (!hMemory) return 0;
pString = LockResource(hMemory);
/* Strings are length-prefixed. Lowest nibble of resId is an index. */
idxString = resId & 0xf;
while (idxString--) pString += *pString + 1;
/* If no buffer is given, return length of the string. */
if (!pwszBuffer) return *pString;
/* Else copy over the string, respecting the buffer size. */
cMaxChars = (*pString < cMaxChars) ? *pString : (cMaxChars - 1);
if (cMaxChars >= 0) {
memcpy(pwszBuffer, pString+1, cMaxChars * sizeof(WCHAR));
pwszBuffer[cMaxChars] = '\0';
}
return cMaxChars;
}
/******************************************************************************
* RegLoadMUIStringW [ADVAPI32.@]
*
* Load the localized version of a string resource from some PE, respective
* id and path of which are given in the registry value in the format
* @[path]\dllname,-resourceId
*
* PARAMS
* hKey [I] Key, of which to load the string value from.
* pszValue [I] The value to be loaded (Has to be of REG_EXPAND_SZ or REG_SZ type).
* pszBuffer [O] Buffer to store the localized string in.
* cbBuffer [I] Size of the destination buffer in bytes.
* pcbData [O] Number of bytes written to pszBuffer (optional, may be NULL).
* dwFlags [I] None supported yet.
* pszBaseDir [I] Not supported yet.
*
* RETURNS
* Success: ERROR_SUCCESS,
* Failure: nonzero error code from winerror.h
*
* NOTES
* This is an API of Windows Vista, which wasn't available at the time this code
* was written. We have to check for the correct behaviour once it's available.
*/
LSTATUS WINAPI RegLoadMUIStringW(HKEY hKey, LPCWSTR pwszValue, LPWSTR pwszBuffer, DWORD cbBuffer,
LPDWORD pcbData, DWORD dwFlags, LPCWSTR pwszBaseDir)
{
DWORD dwValueType, cbData;
LPWSTR pwszTempBuffer = NULL, pwszExpandedBuffer = NULL;
LONG result;
TRACE("(hKey = %p, pwszValue = %s, pwszBuffer = %p, cbBuffer = %d, pcbData = %p, "
"dwFlags = %d, pwszBaseDir = %s) stub\n", hKey, debugstr_w(pwszValue), pwszBuffer,
cbBuffer, pcbData, dwFlags, debugstr_w(pwszBaseDir));
/* Parameter sanity checks. */
if (!hKey || !pwszBuffer)
return ERROR_INVALID_PARAMETER;
if (pwszBaseDir && *pwszBaseDir) {
FIXME("BaseDir parameter not yet supported!\n");
return ERROR_INVALID_PARAMETER;
}
/* Check for value existence and correctness of it's type, allocate a buffer and load it. */
result = RegQueryValueExW(hKey, pwszValue, NULL, &dwValueType, NULL, &cbData);
if (result != ERROR_SUCCESS) goto cleanup;
if (!(dwValueType == REG_SZ || dwValueType == REG_EXPAND_SZ) || !cbData) {
result = ERROR_FILE_NOT_FOUND;
goto cleanup;
}
pwszTempBuffer = HeapAlloc(GetProcessHeap(), 0, cbData);
if (!pwszTempBuffer) {
result = ERROR_NOT_ENOUGH_MEMORY;
goto cleanup;
}
result = RegQueryValueExW(hKey, pwszValue, NULL, &dwValueType, (LPBYTE)pwszTempBuffer, &cbData);
if (result != ERROR_SUCCESS) goto cleanup;
/* Expand environment variables, if appropriate, or copy the original string over. */
if (dwValueType == REG_EXPAND_SZ) {
cbData = ExpandEnvironmentStringsW(pwszTempBuffer, NULL, 0) * sizeof(WCHAR);
if (!cbData) goto cleanup;
pwszExpandedBuffer = HeapAlloc(GetProcessHeap(), 0, cbData);
if (!pwszExpandedBuffer) {
result = ERROR_NOT_ENOUGH_MEMORY;
goto cleanup;
}
ExpandEnvironmentStringsW(pwszTempBuffer, pwszExpandedBuffer, cbData);
} else {
pwszExpandedBuffer = HeapAlloc(GetProcessHeap(), 0, cbData);
memcpy(pwszExpandedBuffer, pwszTempBuffer, cbData);
}
/* If the value references a resource based string, parse the value and load the string.
* Else just copy over the original value. */
result = ERROR_SUCCESS;
if (*pwszExpandedBuffer != '@') { /* '@' is the prefix for resource based string entries. */
lstrcpynW(pwszBuffer, pwszExpandedBuffer, cbBuffer / sizeof(WCHAR));
} else {
WCHAR *pComma = strrchrW(pwszExpandedBuffer, ',');
UINT uiStringId;
HMODULE hModule;
/* Format of the expanded value is 'path_to_dll,-resId' */
if (!pComma || pComma[1] != '-') {
result = ERROR_BADKEY;
goto cleanup;
}
uiStringId = atoiW(pComma+2);
*pComma = '\0';
hModule = LoadLibraryW(pwszExpandedBuffer + 1);
if (!hModule || !load_string(hModule, uiStringId, pwszBuffer, cbBuffer/sizeof(WCHAR)))
result = ERROR_BADKEY;
FreeLibrary(hModule);
}
cleanup:
HeapFree(GetProcessHeap(), 0, pwszTempBuffer);
HeapFree(GetProcessHeap(), 0, pwszExpandedBuffer);
return result;
}
/******************************************************************************
* RegLoadMUIStringA [ADVAPI32.@]
*
* See RegLoadMUIStringW
*/
LSTATUS WINAPI RegLoadMUIStringA(HKEY hKey, LPCSTR pszValue, LPSTR pszBuffer, DWORD cbBuffer,
LPDWORD pcbData, DWORD dwFlags, LPCSTR pszBaseDir)
{
UNICODE_STRING valueW, baseDirW;
WCHAR *pwszBuffer;
DWORD cbData = cbBuffer * sizeof(WCHAR);
LONG result;
valueW.Buffer = baseDirW.Buffer = pwszBuffer = NULL;
if (!RtlCreateUnicodeStringFromAsciiz(&valueW, pszValue) ||
!RtlCreateUnicodeStringFromAsciiz(&baseDirW, pszBaseDir) ||
!(pwszBuffer = HeapAlloc(GetProcessHeap(), 0, cbData)))
{
result = ERROR_NOT_ENOUGH_MEMORY;
goto cleanup;
}
result = RegLoadMUIStringW(hKey, valueW.Buffer, pwszBuffer, cbData, NULL, dwFlags,
baseDirW.Buffer);
if (result == ERROR_SUCCESS) {
cbData = WideCharToMultiByte(CP_ACP, 0, pwszBuffer, -1, pszBuffer, cbBuffer, NULL, NULL);
if (pcbData)
*pcbData = cbData;
}
cleanup:
HeapFree(GetProcessHeap(), 0, pwszBuffer);
RtlFreeUnicodeString(&baseDirW);
RtlFreeUnicodeString(&valueW);
return result;
}
/******************************************************************************
* RegDisablePredefinedCache [ADVAPI32.@]
*
* Disables the caching of the HKEY_CLASSES_ROOT key for the process.
*
* PARAMS
* None.
*
* RETURNS
* Success: ERROR_SUCCESS
* Failure: nonzero error code from Winerror.h
*
* NOTES
* This is useful for services that use impersonation.
*/
LSTATUS WINAPI RegDisablePredefinedCache(void)
{
HKEY hkey_current_user;
int idx = (UINT_PTR)HKEY_CURRENT_USER - (UINT_PTR)HKEY_SPECIAL_ROOT_FIRST;
/* prevent caching of future requests */
hkcu_cache_disabled = TRUE;
hkey_current_user = InterlockedExchangePointer( (void **)&special_root_keys[idx], NULL );
if (hkey_current_user)
NtClose( hkey_current_user );
return ERROR_SUCCESS;
}
/******************************************************************************
* RegDeleteTreeW [ADVAPI32.@]
*
*/
LSTATUS WINAPI RegDeleteTreeW(HKEY hKey, LPCWSTR lpszSubKey)
{
LONG ret;
DWORD dwMaxSubkeyLen, dwMaxValueLen;
DWORD dwMaxLen, dwSize;
WCHAR szNameBuf[MAX_PATH], *lpszName = szNameBuf;
HKEY hSubKey = hKey;
TRACE("(hkey=%p,%p %s)\n", hKey, lpszSubKey, debugstr_w(lpszSubKey));
if(lpszSubKey)
{
ret = RegOpenKeyExW(hKey, lpszSubKey, 0, KEY_READ, &hSubKey);
if (ret) return ret;
}
/* Get highest length for keys, values */
ret = RegQueryInfoKeyW(hSubKey, NULL, NULL, NULL, NULL,
&dwMaxSubkeyLen, NULL, NULL, &dwMaxValueLen, NULL, NULL, NULL);
if (ret) goto cleanup;
dwMaxSubkeyLen++;
dwMaxValueLen++;
dwMaxLen = max(dwMaxSubkeyLen, dwMaxValueLen);
if (dwMaxLen > sizeof(szNameBuf)/sizeof(WCHAR))
{
/* Name too big: alloc a buffer for it */
if (!(lpszName = HeapAlloc( GetProcessHeap(), 0, dwMaxLen*sizeof(WCHAR))))
{
ret = ERROR_NOT_ENOUGH_MEMORY;
goto cleanup;
}
}
/* Recursively delete all the subkeys */
while (TRUE)
{
dwSize = dwMaxLen;
if (RegEnumKeyExW(hSubKey, 0, lpszName, &dwSize, NULL,
NULL, NULL, NULL)) break;
ret = RegDeleteTreeW(hSubKey, lpszName);
if (ret) goto cleanup;
}
if (lpszSubKey)
ret = RegDeleteKeyW(hKey, lpszSubKey);
else
while (TRUE)
{
dwSize = dwMaxLen;
if (RegEnumValueW(hKey, 0, lpszName, &dwSize,
NULL, NULL, NULL, NULL)) break;
ret = RegDeleteValueW(hKey, lpszName);
if (ret) goto cleanup;
}
cleanup:
/* Free buffer if allocated */
if (lpszName != szNameBuf)
HeapFree( GetProcessHeap(), 0, lpszName);
if(lpszSubKey)
RegCloseKey(hSubKey);
return ret;
}
/******************************************************************************
* RegDeleteTreeA [ADVAPI32.@]
*
*/
LSTATUS WINAPI RegDeleteTreeA(HKEY hKey, LPCSTR lpszSubKey)
{
LONG ret;
UNICODE_STRING lpszSubKeyW;
if (lpszSubKey) RtlCreateUnicodeStringFromAsciiz( &lpszSubKeyW, lpszSubKey);
else lpszSubKeyW.Buffer = NULL;
ret = RegDeleteTreeW( hKey, lpszSubKeyW.Buffer);
RtlFreeUnicodeString( &lpszSubKeyW );
return ret;
}