#!/usr/bin/perl -Tw
use strict;
BEGIN { $ENV{PATH} = '/usr/ucb:/bin' }
use Socket;
use Carp;
my $EOL = "\015\012";
my $eth = "your.host";

sub logmsg { 
    print "$0 $$: @_ at ", scalar localtime, "\n" 
}

my $port = shift || 2345;
my $proto = getprotobyname('tcp');
$port = $1 if $port =~ /(\d+)/; # untaint port number

socket(Server, PF_INET, SOCK_STREAM, $proto)        || die "socket: $!
+";
setsockopt(Server, SOL_SOCKET, SO_REUSEADDR, pack("l", 1))   || die "s
+etsockopt: $!";
bind(Server, sockaddr_in($port, inet_aton($eth)))        || die "bind:
+ $!";
listen(Server,SOMAXCONN)                            || die "listen: $!
+";

logmsg "server started on port $port";

my $paddr;

$SIG{CHLD} = \&REAPER;

for ( ; $paddr = accept(Client,Server); close Client) {
    my($port,$iaddr) = sockaddr_in($paddr);
    my $name = gethostbyaddr($iaddr,AF_INET);

    logmsg "connection from $name [", inet_ntoa($iaddr), "] at port $p
+ort";

    print Client "Hello there, $name, it's now ", scalar localtime, $E
+OL;
}
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20050227 Janitored by Corion: Put code in code tags

use Socket almost always means you wrote a lot more code than you needed. Consider IO::Socket::INET instead.

-- Randal L. Schwartz, Perl hacker
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