Just playing around with sockets (cause its fun) I worked up the following code. Its not better realy, just different, and doesn't count on send a specific amount of info each time, intead it uses ->say and ->getline to send whole lines of data. I had to use chomp a couple times and i'm wondering if that could be avoided, but here you have it.

#!/usr/bin/perl
#server
use strict;
use warnings;

use IO::Socket;

$| = 1;
my $nonblocking = 1;


my $sock = new IO::Socket::INET(
    LocalHost   => "localhost",
    LocalPort   => 7890,
    Proto       => "tcp",
    Listen      => SOMAXCONN,
    Reuse       => 1,
    Timeout     => 20,
);

if ($sock) {
   print "A socket created on LocalHost listening on LocalPort\n";
} else {
   die "Error - no listening socket created : $!";
}
my $flush = 1;

while (my ($new_sock,$c_addr) = $sock->accept()) {
    my ($client_port, $c_ip) = sockaddr_in($c_addr);
    my $client_ipnum = inet_ntoa($c_ip);
    my $client_host =gethostbyaddr($c_ip, AF_INET);
    print "Got a connection from: $client_host"," [$client_ipnum] \n";
    print "Created new socket for reading or writing data to Client\n"
+;

    $new_sock->blocking(1);
    my $buf;

    $buf = $new_sock->getline();
    chomp($buf);
    print "Recieved 1 '$buf'\n";

    $new_sock->say($buf);
    $buf = $new_sock->getline();
    chomp($buf);

    print "Recieved 2 '$buf'\n";
    $new_sock->say("12");
}
[download]

#!/usr/bin/perl
#client
use strict;
use warnings;

use IO::Socket;

#To flush the buffer print statements
$| = 1;

my $sock = new IO::Socket::INET( PeerAddr => 'localhost', PeerPort => 
+7890, Proto => 'tcp');

if ($sock) {
   print "A tcp socket on localhost connected to 7890\n";
}
else {
   die "Error: $!";
}

my $buf = "1234567890";

$sock->say($buf);
print "Sent '$buf'\n";
$buf = $sock->getline();
chomp($buf);

print "Bytes 10 = '$buf'\n";

$sock->say("1");
$buf = $sock->getline();
chomp($buf);
print "Bytes 2 = '$buf'\n";
[download]

---

---

Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!

Titles consisting of a single word are discouraged, and in most cases are disallowed outright.

Read Where should I post X? if you're not absolutely sure you're posting in the right place.

Please read these before you post! —

• How do I compose an effective node title?
• How do I post a question effectively?
• Markup in the Monastery

Posts may use any of the Perl Monks Approved HTML tags:

a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr

You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)

	For:		Use:
	&		&
	<		&lt;
	>		&gt;
	[		&#91;
	]		&#93;

Link using PerlMonks shortcuts! What shortcuts can I use for linking?

See Writeup Formatting Tips and other pages linked from there for more info.