windows-nt/Source/XPSP1/NT/admin/wmi/wbem/winmgmt/wbemcomn/servutil.cpp

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/*++
Copyright (C) 1997-2001 Microsoft Corporation
Module Name:
SERVUTIL.CPP
Abstract:
Defines various service utilities.
History:
a-davj 04-Mar-97 Created.
--*/
#include "precomp.h"
#include "servutil.h"
//***************************************************************************
//
// BOOL InstallService
//
// DESCRIPTION:
//
// Installs a service
//
// PARAMETERS:
//
// pServiceName short service name
// pDisplayName name displayed to the user
// pBinary full path to the binary
//
// RETURN VALUE:
//
// TRUE if it worked
//
//***************************************************************************
BOOL InstallService(
IN LPCTSTR pServiceName,
IN LPCTSTR pDisplayName,
IN LPCTSTR pBinary)
{
SC_HANDLE schService = NULL;
SC_HANDLE schSCManager;
schSCManager = OpenSCManager(
NULL, // machine (NULL == local)
NULL, // database (NULL == default)
SC_MANAGER_ALL_ACCESS // access required
);
if ( schSCManager )
{
schService = CreateService(
schSCManager, // SCManager database
pServiceName, // name of service
pDisplayName, // name to display
SERVICE_ALL_ACCESS, // desired access
SERVICE_WIN32_OWN_PROCESS, // service type
SERVICE_DEMAND_START, // start type
SERVICE_ERROR_NORMAL, // error control type
pBinary, // service's binary
NULL, // no load ordering group
NULL, // no tag identifier
NULL, // dependencies
NULL, // LocalSystem account
NULL); // no password
if ( schService )
{
CloseServiceHandle(schService);
}
CloseServiceHandle(schSCManager);
}
return schService != NULL;
}
//***************************************************************************
//
// BOOL RemoveService
//
// DESCRIPTION:
//
// Stops and then removes the service.
//
// PARAMETERS:
//
// pServiceName Short service name
//
// RETURN VALUE:
//
// TRUE if it worked
//
//***************************************************************************
BOOL RemoveService(
IN LPCTSTR pServiceName)
{
SC_HANDLE schService;
BOOL bRet = FALSE;
SC_HANDLE schSCManager;
StopService(pServiceName, 15);
schSCManager = OpenSCManager(
NULL, // machine (NULL == local)
NULL, // database (NULL == default)
SC_MANAGER_ALL_ACCESS // access required
);
if ( schSCManager )
{
schService = OpenService(schSCManager, pServiceName, SERVICE_ALL_ACCESS);
if (schService)
{
bRet = DeleteService(schService);
CloseServiceHandle(schService);
}
CloseServiceHandle(schSCManager);
}
return bRet;
}
//***************************************************************************
//
// BOOL StopService
//
// DESCRIPTION:
//
// Stops and then removes the service.
//
// PARAMETERS:
//
// pServiceName short service name
// dwMaxWait max time in seconds to wait
//
// RETURN VALUE:
//
// TRUE if it worked
//
//***************************************************************************
BOOL StopService(
IN LPCTSTR pServiceName,
IN DWORD dwMaxWait)
{
BOOL bRet = FALSE;
SC_HANDLE schService;
SC_HANDLE schSCManager;
DWORD dwCnt;
SERVICE_STATUS ssStatus; // current status of the service
schSCManager = OpenSCManager(
NULL, // machine (NULL == local)
NULL, // database (NULL == default)
SC_MANAGER_ALL_ACCESS // access required
);
if ( schSCManager )
{
schService = OpenService(schSCManager, pServiceName, SERVICE_ALL_ACCESS);
if (schService)
{
// try to stop the service
if ( bRet = ControlService( schService, SERVICE_CONTROL_STOP, &ssStatus ) )
{
for(dwCnt=0; dwCnt < dwMaxWait &&
QueryServiceStatus( schService, &ssStatus ); dwCnt++)
{
if ( ssStatus.dwCurrentState == SERVICE_STOP_PENDING )
Sleep( 1000 );
else
break;
}
}
CloseServiceHandle(schService);
}
CloseServiceHandle(schSCManager);
}
return bRet;
}
//***************************************************************************
//
// BOOL StartService
//
// DESCRIPTION:
//
// Starts the service runnig
//
// PARAMETERS:
//
// pServiceName short service name
// dwMaxWait max time in seconds to wait
//
// RETURN VALUE:
//
// TRUE if it worked
//
//***************************************************************************
BOOL StartService(
IN LPCTSTR pServiceName,
IN DWORD dwMaxWait)
{
DWORD dwCnt;
BOOL bRet = FALSE;
SC_HANDLE schService;
SC_HANDLE schSCManager;
SERVICE_STATUS ssStatus; // current status of the service
schSCManager = OpenSCManager(
NULL, // machine (NULL == local)
NULL, // database (NULL == default)
SC_MANAGER_ALL_ACCESS // access required
);
if ( schSCManager )
{
schService = OpenService(schSCManager, pServiceName, SERVICE_ALL_ACCESS);
if (schService)
{
// try to stop the service
if ( bRet = StartService( schService, 0, NULL ) )
{
for(dwCnt = 0; dwCnt < dwMaxWait &&
QueryServiceStatus( schService, &ssStatus ); dwCnt++)
{
if ( ssStatus.dwCurrentState != SERVICE_RUNNING )
Sleep( 1000 );
else
break;
}
}
CloseServiceHandle(schService);
}
CloseServiceHandle(schSCManager);
}
return bRet;
}
//***************************************************************************
//
// BOOL SetDependency
//
// DESCRIPTION:
//
// Sets a service's dependency list.
//
// PARAMETERS:
//
// pServiceName short service name
// pDependency dependency list
//
// RETURN VALUE:
//
// TRUE if it worked
//
//***************************************************************************
BOOL SetDependency(
IN LPCTSTR pServiceName,
IN LPCTSTR pDependency)
{
BOOL bRet = FALSE;
SC_HANDLE schService;
SC_HANDLE schSCManager;
schSCManager = OpenSCManager(
NULL, // machine (NULL == local)
NULL, // database (NULL == default)
SC_MANAGER_ALL_ACCESS // access required
);
if ( schSCManager )
{
schService = OpenService(schSCManager, pServiceName, SERVICE_ALL_ACCESS);
if (schService)
{
bRet = ChangeServiceConfig(
schService,
SERVICE_NO_CHANGE,
SERVICE_NO_CHANGE,
SERVICE_NO_CHANGE,
NULL,
NULL,
NULL,
pDependency,
NULL,
NULL,
NULL);
CloseServiceHandle(schService);
}
CloseServiceHandle(schSCManager);
}
return bRet;
}