#!/usr/bin/perl

use strict;
use warnings;
use diagnostics;
use IO::Handle;

use Net::Telnet;

my ($host, $username, $passwd) = ("localhost", "issac", "YYYYY");

autoflush STDOUT 1;

my $t = Net::Telnet->new();

# Log into unix box
print localtime().": Connect to $host...";
my $ok = $t->open(Host    => $host,
                  Timeout => 20,
                  Errmode => "return");
die ("Cannot connect to $host telnet server") if !$ok;
print "OK\n";

print localtime().": Login to $host...";
$ok = $t->login(Name     => $username,
                Password => $passwd,
                Timeout  => 20,
                Errmode  => "return");
die ("Cannot login to $host telnet server") if !$ok;
print "OK\n";


# Read from server continually.
# Periodically send text to server.

while (1)
{
    my $output = $t->get(Timeout => 10,
                         Errmode => "return");

    if (defined $output)
    {
        # Recieved text from server
        print localtime().": get() returned definite output=\"$output\"\n";
    }
    elsif ($t->eof())
    {
        # End of file - server has hung up.
        print localtime().": get() returned EOF\n";
        last;
    }
    else
    {
        # Timeout occured
        print localtime().": get() returned TIMEOUT\n";

        print localtime().": put() sending string\n";
        # Send some crap to the server
        my $ok = $t->put(String => "echo HELLO\n",
                         Timeout => 10,
                         Errmode => "return");

        if (!$ok)
        {
            if ($t->eof())
            {
                print localtime().": put() returned EOF\n";
                last;
            }
            else
            {
                print localtime().": put() returned TIMEOUT\n";
            }
        }
    }
}