ftp_enable = 1
            ftp_listen = 0.0.0.0@21
            ftp_port_srcport = 20
            

package com.ibm.ipv6.ftp;
            import java.io.BufferedInputStream;
            import java.io.BufferedReader;
            import java.io.File;
            import java.io.FileOutputStream;
            import java.io.InputStreamReader;
            import sun.net.ftp.FtpClient;
            /**
            * @author Makham Kumar
            *
            */
            public class IPv6FTPClient extends FtpClient{
            private static final String sourceClass = "IPv6FTPClient";
            private static final String SPACE= " ";
            private static final String SEP = "-";
            private static final String LINE = "\n";
            public IPv6FTPClient(){ }
            public static void main(String[] ipv6Main) {
            final String sourceMethod = "main";
            BufferedReader bRead = null;
            IPv6FTPClient ipv6Ins = null;
            String strOption = null;
            String strFileName = null;
            boolean bStatus = true;
            try {
            if(ipv6Main.length == 3)
            {
            ipv6Ins = new IPv6FTPClient();
            ipv6Ins.loginToMachine(ipv6Main[0], ipv6Main[1], ipv6Main[2]);
            ipv6Ins.listFileSets();
            // Capturing details from the user to download files from the FTP server
            do {
            console(LINE+LINE+SPACE+"Want to download a file ? [Y/N] : ");
            bRead = new BufferedReader(new InputStreamReader(System.in));
            strOption = bRead.readLine();
            if(strOption.equalsIgnoreCase("Y"))
            {
            console(LINE+SPACE+"Enter the file name to download : ");
            strFileName = bRead.readLine();
            bStatus = ipv6Ins.getFile(strFileName);
            }
            else if(strOption.equalsIgnoreCase("N"))
            {
            bStatus = false;
            ipv6Ins.closeServer();
            console(LINE+LINE+SPACE+"Closing the FTP server connection "+LINE);
            }
            else
            {
            bStatus = false;
            console(LINE+LINE+SPACE+"Entered invalid option.");
            }
            } while (bStatus);
            bRead.close();
            }
            else
            {
            console(LINE+"Entered invalid arguments");
            }
            console(LINE+LINE+SPACE+"Application existing !!!"+LINE+LINE);
            }catch(Exception eM)
            {
            eM.printStackTrace();
            console(LINE+"Application existing !!!"+LINE+LINE);
            }
            finally
            {
            try {
            if(bRead != null)
            bRead.close();
            } catch (Exception eFinally) {
            eFinally.printStackTrace();
            }
            }
            }
            /**
            * This utility method connects to FTP server using Username and Password
            * @return void
            */
            private void loginToMachine(String strMachine, String strUser, String strPasswd)
            {
            final String sourceMethod = "loginToMachine";
            try{
            openServer(strMachine);
            login(strUser,strPasswd);
            console(sourceMethod,"Suclearcase/" target="_blank" >ccessfully connected to FTP server");
            binary();
            } catch(Exception eLogin)
            {
            eLogin.printStackTrace();
            System.exit(0);
            }
            }
            /**
            * This utility method lists the names of the files in
            * the respective FTP user directory
            * @return void
            */
            private void listFileSets()
            {
            final String sourceMethod = "listFileSets";
            String fileName;
            BufferedReader reader = null;
            try{
            reader = new BufferedReader(new InputStreamReader(list()));
            while ((fileName = reader.readLine()) != null) {
            console(LINE+fileName);
            }
            reader.close();
            }catch(Exception eList)
            {
            eList.printStackTrace();
            }
            finally
            {
            try {
            if(reader != null)
            reader.close();
            }catch (Exception eFinally) {
            eFinally.printStackTrace();
            }
            }
            }
            /**
            * This utility method downloads the file from the FTP server to
            * the location where this Java program is executed
            * @return boolean
            */
            private boolean getFile(String fileName)
            {
            final String sourceMethod = "getFile";
            boolean bStatus = false;
            BufferedInputStream bInputStream = null;
            FileOutputStream fOutputStream = null;
            String strPath = "."+File.separator+"download"+File.separator;
            try {
            bInputStream = new BufferedInputStream(get(fileName));
            fOutputStream = new FileOutputStream(strPath+fileName);
            int iStart = 0;
            byte[] byteArray = new byte[1024];
            while ((iStart = bInputStream.read(byteArray)) >= 0) {
            fOutputStream.write(byteArray, 0, iStart);
            }
            fOutputStream.close();
            bInputStream.close();
            console(sourceMethod,"Successfully downloaded the file : "+fileName);
            bStatus = true;
            } catch (Exception eGetFile) {
            eGetFile.printStackTrace();
            }
            finally
            {
            try {
            if(fOutputStream != null)
            fOutputStream.close();
            if(bInputStream != null)
            bInputStream.close();
            } catch (Exception eFinally) {
            eFinally.printStackTrace();
            }
            }
            return bStatus;
            }
            /**
            * This utility method prints the text to console
            * @param String - Source method name
            * @param String - Message text
            * @return void
            */
            private static void console(String sourceMethod, String msgText)
            {
            System.out.println(LINE+SPACE+sourceClass+SEP+sourceMethod+SEP+msgText);
            }
            /**
            * This utility method prints the text to console
            * @param String - Message text
            * @return void
            */
            private static void console(String msgText)
            {
            System.out.print(msgText);
            }
            }
            

set IPV6ADDRESS="$IPV6_ADDRESS"
            set USERID="$USERID"
            set PASSWD="$PASSWD"
            set JAVA_HOME_15="$JAVA_HOME_15"
            

set IPV6ADDRESS="2002:9b8:708f:0:0:0:0:1"
            set USERID="ipv6"
            set PASSWD="ipv6"
            set JAVA_HOME_15="C:\Makham\was\wasnd\java"