public synchronized boolean getRootAhth()

    {

        Process process = null;

        DataOutputStream os = null;

        try

        {

            process = Runtime.getRuntime().exec("su");

            os = new DataOutputStream(process.getOutputStream());

            os.writeBytes("exit\n");

            os.flush();

            int exitValue = process.waitFor();

            if (exitValue == 0)

            {

                return true;

            } else

            {

                return false;

            }

        } catch (Exception e)

        {

            Log.d("*** DEBUG ***", "Unexpected error - Here is what I know: "

                    + e.getMessage());

            return false;

        } finally

        {

            try

            {

                if (os != null)

                {

                    os.close();

                }

                process.destroy();

            } catch (Exception e)

            {

                e.printStackTrace();

            }

        }

    }