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      1 /* -*- Mode: C; tab-width: 4 -*-
      2  *
      3  * Copyright (c) 2004 Apple Computer, Inc. All rights reserved.
      4  *
      5  * Licensed under the Apache License, Version 2.0 (the "License");
      6  * you may not use this file except in compliance with the License.
      7  * You may obtain a copy of the License at
      8  *
      9  *     http://www.apache.org/licenses/LICENSE-2.0
     10  *
     11  * Unless required by applicable law or agreed to in writing, software
     12  * distributed under the License is distributed on an "AS IS" BASIS,
     13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     14  * See the License for the specific language governing permissions and
     15  * limitations under the License.
     16  */
     17 
     18 #include <windows.h>
     19 #include <DebugServices.h>
     20 
     21 BOOL APIENTRY	DllMain( HANDLE inModule, DWORD inReason, LPVOID inReserved )
     22 {
     23 	(void) inModule;
     24 	(void) inReserved;
     25 
     26 	switch( inReason )
     27 	{
     28 		case DLL_PROCESS_ATTACH:
     29 		case DLL_THREAD_ATTACH:
     30 		case DLL_THREAD_DETACH:
     31 		case DLL_PROCESS_DETACH:
     32 			break;
     33 	}
     34     return( TRUE );
     35 }
     36 
     37 
     38 BOOL
     39 IsSystemServiceDisabled()
     40 {
     41 	ENUM_SERVICE_STATUS	*	lpService = NULL;
     42 	SC_HANDLE					sc;
     43 	BOOL							ret = FALSE;
     44 	BOOL							ok;
     45 	DWORD							bytesNeeded = 0;
     46 	DWORD							srvCount;
     47 	DWORD							resumeHandle = 0;
     48 	DWORD							srvType;
     49 	DWORD							srvState;
     50 	DWORD							dwBytes = 0;
     51 	DWORD							i;
     52 	OSStatus						err;
     53 
     54 	sc = OpenSCManager( NULL, NULL, SC_MANAGER_ENUMERATE_SERVICE );
     55 	err = translate_errno( sc, GetLastError(), kUnknownErr );
     56 	require_noerr( err, exit );
     57 
     58 	srvType		=	SERVICE_WIN32;
     59 	srvState		=	SERVICE_STATE_ALL;
     60 
     61 	for ( ;; )
     62 	{
     63 		// Call EnumServicesStatus using the handle returned by OpenSCManager
     64 
     65 		ok = EnumServicesStatus ( sc, srvType, srvState, lpService, dwBytes, &bytesNeeded, &srvCount, &resumeHandle );
     66 
     67 		if ( ok || ( GetLastError() != ERROR_MORE_DATA ) )
     68 		{
     69 			break;
     70 		}
     71 
     72 		if ( lpService )
     73 		{
     74 			free( lpService );
     75 		}
     76 
     77 		dwBytes = bytesNeeded;
     78 
     79 		lpService = ( ENUM_SERVICE_STATUS* ) malloc( dwBytes );
     80 		require_action( lpService, exit, ret = FALSE );
     81 	}
     82 
     83 	err = translate_errno( ok, GetLastError(), kUnknownErr );
     84 	require_noerr( err, exit );
     85 
     86 	for ( i = 0; i < srvCount; i++ )
     87 	{
     88 		if ( strcmp( lpService[i].lpServiceName, "Bonjour Service" ) == 0 )
     89 		{
     90 			if ( ( lpService[i].ServiceStatus.dwCurrentState == SERVICE_PAUSED ) || ( lpService[i].ServiceStatus.dwCurrentState == SERVICE_STOPPED ) )
     91 			{
     92 				ret = TRUE;
     93 			}
     94 
     95 			break;
     96 		}
     97 	}
     98 
     99 exit:
    100 
    101 	if ( lpService )
    102 	{
    103 		free( lpService );
    104 	}
    105 
    106 	if ( sc )
    107 	{
    108 		CloseServiceHandle ( sc );
    109 	}
    110 
    111 	return ret;
    112 }
    113