private static ManagementScope getScope(string target, bool subscription)
{
ManagementScope scope;
if (subscription)
{
scope = new ManagementScope("\\\\" + target + "\\Root\\subscription", options);
}
else
{
scope = new ManagementScope("\\\\" + target + "\\Root\\CIMV2", options);
}
try
{
scope.Connect();
}
//user credentials cannot be used in local connections
catch (ManagementException)
{
scope.Options = new ConnectionOptions();
scope.Connect();
}
catch (UnauthorizedAccessException)
{
//scope refers to local ip. If credential in options a different from current user credentials,
//it will cause an 'access denied' exception
if (IPHandler.get_local_ip().Equals(target) || target.Equals("127.0.0.1"))
{
scope.Options = new ConnectionOptions();
scope.Connect();
}
else
{
//access denied (wrong credentials)
return(null);
}
}
//RPC server is unavaliable
catch (System.Runtime.InteropServices.COMException e)
{
return(null);
}
return(scope);
}
