Here is my code:

---server---

use IO::Socket::INET;
use IO::Select;

 

$socket=new IO::Socket::INET->new(LocalPort=>2010,Proto=>'udp');
$select=IO::Select->new($socket,\*STDIN);

LOOP:
while(1)
{
 @readers=$select->can_read();
 foreach $ready (@readers)
 { 
  if($ready eq \*STDIN)
  {
   print "\n","Enter message to send to client : ";
  
   $msg_out=<STDIN>;
  
   $socket->send($msg_out);
  
   goto LOOP;
  }
  elsif($ready eq $socket)
  {
   $socket->recv($msg_in,100);
   print "\n","Peer>",$msg_in;
   goto LOOP;
  }
 }

}

exit 1;


---client---

use IO::Socket::INET;

use IO::Select;
 
$socket=new IO::Socket::INET->new(PeerPort=>2010,Proto=>'udp',PeerAddr
+=>'localhost');
$select=IO::Select->new($socket,\*STDIN);


LOOP:
while(1)
{
 @readers=$select->can_read();
 foreach $ready (@readers)
 { 
  if($ready eq \*STDIN)
  {
   print "Enter message to send to server : ";

   $msg_out=<STDIN>;
   
   
   $socket->send($msg_out);
  
  
   goto LOOP;
  }
  elsif($ready eq $socket)
  {
   $socket->recv($msg_in,100);
   print "\n","Peer>",$msg_in;
   goto LOOP;
  }
 }

}
exit 1;
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