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");
}
#!/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";
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