Hello i am working with socket programming in Perl. It is a server client script. My server is able to handle multiple connections but my client hangs when i try to receive data from server. Client and server exchange two messages before communication between server and client can start. My client hangs when i try to catch the second message from the server. I can't figure why my clients get stuck at $handle->recv($nick_check,255);. I am new to socket programming any help would be greatly appreciated.

#!/usr/bin/perl -w
use strict;
use IO::Socket;

@ARGV == 2 or die "IP:Portnumber Nickname needed ";


my ( $host, $port, $kidpid, $handle, $line,$nickname, $connect_check, 
+$nick_che$

($host, $port)=@ARGV;
my $input = $ARGV[0]; $nickname = $ARGV[1];
my @arguments= split(':',$input);
my $server_ip= $arguments[0];
my $server_port=$arguments[1];


$handle = IO::Socket::INET->new(
    Proto    => "tcp",
    PeerAddr => $server_ip,
    PeerPort => $server_port
  )
  or die "can't connect to port $server_port on $server_ip: $!";
$handle->autoflush(1);
print STDERR "[Connected to $host:$port]\n";

$handle->recv($connect_check,255);
$nickname= "NICK" . " $nickname";
$handle->send($nickname);
$handle->recv($nick_check,255);




#die "can't fork: $!" unless defined( $kidpid = fork() );

# the if{} block runs only in the parent process
#if ($kidpid) {

    # copy the socket to standard output
 #   while ( defined( $line = <$handle> ) ) {
  #                    print STDOUT $line;
   #                   }
    #kill( "TERM", $kidpid );    # send SIGTERM to child
#}

# the else{} block runs only in the child process
#else {

 #   # copy standard input to the socket
  #  while ( defined( $line = <STDIN> ) ) {
   #     print $handle "$line";
   # }
#}
[download]

My server code

#!/usr/bin/perl -w
use strict;
use warnings;
use IO::Socket;
use IO::Select;

# auto-flush on socket
$| = 1;

my $server_ip;
my $server_port;


@ARGV == 2 or die "IP and Portnumber needed";
($server_ip,$server_port)=@ARGV;


# creating a listening socket
my $tcp_socket = new IO::Socket::INET(
    LocalHost => $server_ip,
    LocalPort => $server_port,
    Proto => 'tcp',
    Listen => 5,
    Reuse => 1
);
die "cannot create socket $!\n" unless $tcp_socket;
print "server waiting for client connection on port $server_port\n";

#Create write and readhandlers with select
my $read_select = IO::Select->new();
$read_select->add($tcp_socket);

#version send to server
my $Version ="Hello <VERSION>\n";

#hash for client
my %clients;
while(1)
{
    my $new_readable;
    my $nick;
    my $message_check=0;


    ($new_readable)=IO::Select->select($read_select,undef,undef,0);
    foreach my $read(@$new_readable)
    {
      if($read==$tcp_socket)
      {
       my $new_connection = $read->accept();
       $new_connection->send($Version);
        $read_select->add($new_connection);
      }
      else
      { my $buf;
        my $msg;
        $buf=<$read>;
        if($buf)
        {

           my $check_message = index($buf,"MSG");

            #Hanndle nick
            my $nick_check;
            my $content = "NICK";
            my $found_content = index($buf,$content);
            if ($found_content == 0)
            {
              $nick_check="OK\n";
              $read->send($nick_check);
              print "Ok sent\n";
            }
            else {
             $nick_check="Error <txt>\n";
             $read->send($nick_check);
            }

            if ($found_content == 0)
            {

                    $nick =  substr $buf, 5;
                    $clients{"$read"}="$nick";


            }
            my $nick_name="";
            my $message = "MSG";
            my $header="";
            my $buffer;

             if($buf =~m/^MSG/)   {

              while (my ($key,$value)= each %clients){
                if ($key eq $read)
                {
                    $nick_name = $value;
                    chomp $nick_name;
                }
              }

             }
             if ($nick_name)
             {
                $header = $message." $nick_name";
                substr($buf,0,3) = $header;


             }


 my @sockets = $read_select->can_write(); #returns  a array of handl$
            foreach my $sck(@sockets)
            {

                if ($sck!=$read && $buf !~m/^NICK/ && $message_check !
+=1)
                {
                   $sck->send("$buf\n");
                }

            }
        }
        else
        {
            $read_select->remove($read);

        }

        }

        }
    }


$tcp_socket->close();
[download]

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