import java.io.*;

import java.util.Calendar;

import java.text.SimpleDateFormat;

public class on_pinger

{

public static String now(String dateFormat)

{

Calendar cal = Calendar.getInstance();

SimpleDateFormat sdf = new SimpleDateFormat(dateFormat);

return sdf.format(cal.getTime());

}

public static void cmdexec(int count, String ipaddr, PrintStream p)

{

try

{

Process p1 = Runtime.getRuntime().exec ("date");

Process p2 = Runtime.getRuntime().exec ("ping -c 1 " + ipaddr);

try

{

Thread.sleep(500L);

}

catch(InterruptedException e)

{

e.printStackTrace();

}

BufferedReader in1 = new BufferedReader (new InputStreamReader(p1.getInputStream()));

BufferedReader in2 = new BufferedReader (new InputStreamReader(p2.getInputStream()));

String s1 = in1.readLine();

String s2 = in2.readLine();

s2 = in2.readLine();

String s3 = count + " " + s1 + " PING TIMED OUT: " + ipaddr;

String s4 = count + " " + s1 + " " + s2;

if (s2.length() < 3)

{

System.out.println(s3);

p.println(s3);

}

else

System.out.println(s4);

}

catch (Exception e)

{

e.printStackTrace();

}

}

public static void main (String args[])

{

FileOutputStream fout;

PrintStream p;

int looper = -1;

int counter = 1;

if (args.length < 1)

{

System.err.println("\nApplication Error:");

System.err.println("Usage: java on_pinger ipadd1 ipadd2 .... \n\n");

System.exit(-1);

}

try

{

String opn = "ON-PINGER-" + now("yyyyMMdd") + "-" +now("HHmmss-aaa") + ".OUT";

fout = new FileOutputStream (opn);

p = new PrintStream (fout);

System.out.println("Output Filename: " + opn);

p.println("--------------------------------------------------------------------------");

p.println("This log file was created on " + now("MMMMM dd, yyyy GGG hh:mm aaa"));

p.println("--------------------------------------------------------------------------");

while (looper < 0)

{

for(int i = 0; i < args.length; i++)

{

cmdexec(counter, args[i], p);

}

counter++;

}

p.close();

fout.close();

}

catch (IOException e)

{

System.err.println ("Unable to write file" );

System.exit(-1);

}

}

}