// NAME//      $RCSfile: get_next.java,v $// DESCRIPTION//      [given below in javadoc format]// DELTA//      $Revision: 1.5 $// CREATED//      $Date: 2006/01/30 11:37:19 $// COPYRIGHT//      Westhawk Ltd// TO DO///* * Copyright (C) 1996 - 1998 by Westhawk Ltd (www.westhawk.nl) * Copyright (C) 1998 - 2006 by Westhawk Ltd (www.westhawk.co.uk) * * Permission to use, copy, modify, and distribute this software * for any purpose and without fee is hereby granted, provided * that the above copyright notices appear in all copies and that * both the copyright notice and this permission notice appear in * supporting documentation. * This software is provided "as is" without express or implied * warranty. * author <a href="mailto:snmp@westhawk.co.uk">Tim Panton</a> */ package uk.co.westhawk.examplev3;import java.awt.Graphics;import java.awt.Event;import java.util.*;import java.net.*;import uk.co.westhawk.snmp.stack.*;    import uk.co.westhawk.snmp.pdu.*;    import uk.co.westhawk.snmp.util.*;    /** * <p> * The get_next application does a MIB tree walk, using the BlockPdu.  * It will start with the OID as configured in the properties file. * </p> * * <p> * It walks the tree by creating a new BlockPdu out off the * previous one. All information will be printed to * <code>System.out</code>. * </p> * * <p> * All parameters can be configured  * in the properties file.  * The name of the properties file can be passed as first argument to * this application. If there is no such argument, it will look for * <code>get_next.properties</code>. If this file does not exist, the * application will use default parameters. * </p> * * @see uk.co.westhawk.snmp.pdu.BlockPdu * * @author <a href="mailto:snmp@westhawk.co.uk">Birgit Arkesteijn</a> * @version $Revision: 1.5 $ $Date: 2006/01/30 11:37:19 $ */public class get_next {    private static final String     version_id =        "@(#)$Id: get_next.java,v 1.5 2006/01/30 11:37:19 birgit Exp $ Copyright Westhawk Ltd";    final static String sysUpTime = "1.3.6.1.2.1.1.3";    private SnmpContextv3Pool context;    private BlockPdu pdu;    private Util        util;/** * Constructor. * * @param propertiesFilename The name of the properties file. Can be * null. */public get_next(String propertiesFilename){    util = new Util(propertiesFilename, this.getClass().getName());}public void init () {    String host = util.getHost();    String bindAddr = util.getBindAddress();    int port = util.getPort(SnmpContextBasisFace.DEFAULT_PORT);    String socketType = util.getSocketType();    String oid = util.getOid(sysUpTime);    byte[] engineId = util.getContextEngineId();    String contextName = util.getContextName();    String userName = util.getUserName();    int auth = util.getUseAuth();    String authPassw = util.getUserAuthPassword();    int proto = util.getAuthProcotol();    int priv = util.getUsePriv();    String privPassw = util.getUserPrivPassword();    try     {        context = new SnmpContextv3Pool(host, port, bindAddr, socketType);        context.setUserName(userName);        context.setUseAuthentication((auth==1));        context.setUserAuthenticationPassword(authPassw);        context.setAuthenticationProtocol(proto);        context.setContextEngineId(engineId);        context.setContextName(contextName);        context.setUsePrivacy((priv == 1));        context.setUserPrivacyPassword(privPassw);        pdu = new BlockPdu(context);        pdu.setPduType(BlockPdu.GETNEXT);        pdu.addOid(oid);    }    catch (java.io.IOException exc)    {        System.out.println("IOException " + exc.getMessage());        System.exit(0);    }    catch (Exception exc)    {        System.out.println("Exception " + exc.getMessage());        System.exit(0);    }}public void start(){    boolean running=true;    try    {        while (running)        {            varbind var = pdu.getResponseVariableBinding();            if (pdu.getErrorStatus() == AsnObject.SNMP_ERR_NOERROR)            {                AsnObject obj = var.getValue();                if (obj != null                         &&                     obj.getRespType() != AsnObject.SNMP_VAR_ENDOFMIBVIEW)                {                    AsnObjectId oid = var.getOid();                    System.out.println(var.toString());                    pdu = new BlockPdu(context);                    pdu.setPduType(BlockPdu.GETNEXT);                    pdu.addOid(oid.toString());                }                else                {                    running = false;                }            }            else            {                running = false;            }        }    }    catch (PduException exc)    {        exc.printStackTrace();        System.out.println("PduException: " + exc.getMessage());        running = false;    }    catch (java.io.IOException exc)    {        exc.printStackTrace();        System.out.println("IOException: " + exc.getMessage());        running = false;    }}public static void main(String[] args){    String propFileName = null;    if (args.length > 0)    {        propFileName = args[0];    }    get_next application = new get_next(propFileName);    application.init();    application.start();}}