#!/usr/bin/perl
use strict;
use warnings;
use IO::Socket::INET;
$| = 1;
my $sock = IO::Socket::INET->new(
Listen => 5,
LocalAddr => 'localhost',
LocalPort => 1234,
Proto => 'tcp',
ReuseAddr => 1,
);
die $! unless $sock;
die $! unless $sock->listen();
while (my $client = $sock->accept()) {
my $line = <$client>;
chomp $line;
my ($cnt, $len) = split(',', $line);
next unless $cnt || $len;
for (my $i = 1; $i <= $cnt; ++$i) {
print $client '.' x $len, "\n";
}
}