1 /**************************************************************
2  *
3  * Licensed to the Apache Software Foundation (ASF) under one
4  * or more contributor license agreements.  See the NOTICE file
5  * distributed with this work for additional information
6  * regarding copyright ownership.  The ASF licenses this file
7  * to you under the Apache License, Version 2.0 (the
8  * "License"); you may not use this file except in compliance
9  * with the License.  You may obtain a copy of the License at
10  *
11  *   http://www.apache.org/licenses/LICENSE-2.0
12  *
13  * Unless required by applicable law or agreed to in writing,
14  * software distributed under the License is distributed on an
15  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16  * KIND, either express or implied.  See the License for the
17  * specific language governing permissions and limitations
18  * under the License.
19  *
20  *************************************************************/
21 
22 
23 
24 {
25 	HKEY	hkeyLogon;
26 	HKEY	hkeyWorkgroup;
27 	DWORD	dwResult = 0;
28 
29 
30 	if ( ERROR_SUCCESS  == RegOpenKeyEx(
31 		HKEY_LOCAL_MACHINE,
32 		TEXT("Network\\Logon"),
33 		0, KEY_READ, &hkeyLogon ) )
34 	{
35 		DWORD	dwLogon = 0;
36 		DWORD	dwLogonSize = sizeof(dwLogon);
37 		RegQueryValueEx( hkeyLogon, TEXT("LMLogon"), 0, NULL, (LPBYTE)&dwLogon, &dwLogonSize );
38 		RegCloseKey( hkeyLogon );
39 
40 		if ( dwLogon )
41 		{
42 			HKEY	hkeyNetworkProvider;
43 
44 			if ( ERROR_SUCCESS  == RegOpenKeyEx(
45 				HKEY_LOCAL_MACHINE,
46 				TEXT("SYSTEM\\CurrentControlSet\\Services\\MSNP32\\NetworkProvider"),
47 				0, KEY_READ, &hkeyNetworkProvider ) )
48 			{
49 				DWORD	dwBufferSize = nSize;
50 				LONG	lResult = RegQueryValueEx( hkeyNetworkProvider, TEXT("AuthenticatingAgent"), 0, NULL, (LPBYTE)lpBuffer, &dwBufferSize );
51 
52 				if ( ERROR_SUCCESS == lResult || ERROR_MORE_DATA == lResult )
53 					dwResult = dwBufferSize / sizeof(TCHAR);
54 
55 				RegCloseKey( hkeyNetworkProvider );
56 			}
57 		}
58 	}
59 	else if ( ERROR_SUCCESS == RegOpenKeyEx(
60 		HKEY_LOCAL_MACHINE,
61 		TEXT("SYSTEM\\CurrentControlSet\\Services\\VxD\\VNETSUP"),
62 		0, KEY_READ, &hkeyWorkgroup ) )
63 	{
64 		DWORD	dwBufferSize = nSize;
65 		LONG	lResult = RegQueryValueEx( hkeyWorkgroup, TEXT("Workgroup"), 0, NULL, (LPBYTE)lpBuffer, &dwBufferSize );
66 
67 		if ( ERROR_SUCCESS == lResult || ERROR_MORE_DATA == lResult )
68 			dwResult = dwBufferSize / sizeof(TCHAR);
69 
70 		RegCloseKey( hkeyWorkgroup );
71 	}
72 
73 
74 	return dwResult;
75 }
76