Yeah, it's kind of hard for me to get my head around your script, since I'm not running it. That else {last;} line looks suspicious to me, since it's in an if-elsif-else chain. Maybe try to put a next in there instead and see what happens.

But from my experiences with sockets, it sounds like you might be looking for the recv method?. You need to tell the socket to go from sending mode to receive mode. But there are so many different ways to do it, it is hard to say what your problem is with just a code fragment. 

$server->recv($data, 1024);
print "received: $data";

[download]

If you can set up a client server script pair, which simply demonstrates your idea, you might want to post it as another new question. You can set them up to just work on localhost. Try to explain what you want the server to do, and what you expect the client to do. If you don't have a clue on how to setup the scripts with pure Perl, just ask, and you will probably get a few pre-made examples. I usually like to working with a forking server and client pair, so that each socket is setup as a one way channel, and you don't need to worry about switching them from send to recv.

Here is a server client pair you might want to look at:

Server 

#!/usr/bin/perl
use IO::Socket;
use IO::Select;

my @sockets;
my $machine_addr = '192.168.0.9';
$main_sock = new IO::Socket::INET(LocalAddr=>$machine_addr,
      LocalPort=>1200,
      Proto=>'tcp',
      Listen=>3,
            Reuse=>1,
            );

die "Could not connect: $!" unless $main_sock;
print "Starting Server\n";

$readable_handles = new IO::Select();
$readable_handles->add($main_sock);

while (1)
{
  ($new_readable) = IO::Select->select($readable_handles, undef, undef
+, 0);

  foreach $sock (@$new_readable)
  {
    if ($sock == $main_sock)
    {
      $new_sock = $sock->accept();
      $readable_handles->add($new_sock);
    }
    else
    {
      $buf = <$sock>;
      if ($buf)
      { 
        print "$buf\n";
        my @sockets = $readable_handles->can_write();
    #print $sock "You sent $buf\n";
    foreach my $sck(@sockets){print $sck "$buf\n";}
        
      }
      else
      {
        $readable_handles->remove($sock);
        close($sock);
      }
    }
  }

}

print "Terminating Server\n";
close $main_sock;
getc();

[download]

and a bi-directional client 

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

my ( $host, $port, $kidpid, $handle, $line );

( $host, $port ) = ('192.168.0.9',1200);

my $name = shift || '';
if($name eq ''){print "What's your name?\n"}
chomp ($name = <>);


# create a tcp connection to the specified host and port
$handle = IO::Socket::INET->new(
    Proto    => "tcp",
    PeerAddr => $host,
    PeerPort => $port
  )
  or die "can't connect to port $port on $host: $!";
$handle->autoflush(1);    # so output gets there right away
print STDERR "[Connected to $host:$port]\n";

# split the program into two processes, identical twins
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 $handle "$name->$line";
    }
}

[download]
I'm not really a human, but I play one on earth. flash japh

In reply to Re^5: IO::Socket Bi-directional comm by zentara
in thread IO::Socket Bi-directional comm by carric

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