subnet

        protected Void doInBackground(Void... voids) {
            String subnetString = null;
            String subnetPrefixString = null;
            final List<String> serverList = new ArrayList<String>();

            try {
                // Get the IP address string
                subnetString = InetAddress.getLocalHost().toString();
                subnetString = subnetString.substring(subnetString.indexOf("/") + 1);
                subnetPrefixString = subnetString.substring(0, subnetString.lastIndexOf(".")) + ".";
            } catch (UnknownHostException e) {
                // Exception output
            }

            for(int i=1; i<255; i++) {
                final String ipString = subnetPrefixString + String.valueOf(i);
                final Runnable sniffRunnable = new Runnable() {
                    public void run() {
                        Bundle b = new Bundle();
                        Message m = new Message();
                        try {
                            serverList.add(find(ipString));
                        } catch (IOException e) {
                            b.putString("error", e.getMessage());
                            //b.putString("error", "error: "+e.toString());
                        }
                        b.putString("valid", ipString);
                        m.setData(b);
                        //addressHandler.sendMessage(m);
                    }
                };
                new Thread(sniffRunnable).start();
            }

            return voids[0];
        }