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# -*- perl -*-
#
# INetSim::Quotd::UDP - A fake UDP quotd server
#
# RFC 865 - Quote of the Day Protocol
#
# (c)2007-2019 Matthias Eckert, Thomas Hungenberg
#
#############################################################
package INetSim::Quotd::UDP;
use strict;
use warnings;
use base qw(INetSim::Quotd);
sub configure_hook {
my $self = shift;
$self->{server}->{host} = INetSim::Config::getConfigParameter("Default_BindAddress"); # bind to address
$self->{server}->{port} = INetSim::Config::getConfigParameter("Quotd_UDP_BindPort"); # bind to port
$self->{server}->{proto} = 'udp'; # UDP protocol
$self->{server}->{user} = INetSim::Config::getConfigParameter("Default_RunAsUser"); # user to run as
$self->{server}->{group} = INetSim::Config::getConfigParameter("Default_RunAsGroup"); # group to run as
$self->{server}->{setsid} = 0; # do not daemonize
$self->{server}->{no_client_stdout} = 1; # do not attach client to STDOUT
$self->{server}->{log_level} = 0; # do not log anything
# $self->{server}->{udp_recv_len} = 1024; # default is 4096
$self->{servicename} = INetSim::Config::getConfigParameter("Quotd_UDP_ServiceName");
$self->{max_childs} = INetSim::Config::getConfigParameter("Default_MaxChilds");
my ($author, $quote) = INetSim::Quotd::select_quote(INetSim::Config::getConfigParameter("Quotd_UDP_ServiceName"));
$self->{logtext} = "$quote ($author)";
$quote =~ s/(.{1,72})(\s+|\z)|(.{1,72})/$1\r\n/gm;
$self->{outtext} = "$quote\r\n-- $author\r\n";
}
sub pre_loop_hook {
my $self = shift;
$0 = "inetsim_$self->{servicename}";
INetSim::Log::MainLog("started (PID $$)", $self->{servicename});
}
sub pre_server_close_hook {
my $self = shift;
INetSim::Log::MainLog("stopped (PID $$)", $self->{servicename});
}
sub fatal_hook {
my $self = shift;
INetSim::Log::MainLog("failed!", $self->{servicename});
exit 0;
}
sub process_request {
my $self = shift;
my $client = $self->{server}->{client};
my $rhost = $self->{server}->{peeraddr};
my $rport = $self->{server}->{peerport};
my $stat_success = 0;
INetSim::Log::SubLog("[$rhost:$rport] connect", $self->{servicename}, $$);
if ($self->{server}->{numchilds} >= $self->{max_childs}) {
print $client "Maximum number of connections ($self->{max_childs}) exceeded.\n";
INetSim::Log::SubLog("[$rhost:$rport] Connection refused - maximum number of connections ($self->{max_childs}) exceeded.", $self->{servicename}, $$);
}
else {
$client->send($self->{outtext});
INetSim::Log::SubLog("[$rhost:$rport] send: $self->{logtext}", $self->{servicename}, $$);
$stat_success = 1;
}
INetSim::Log::SubLog("[$rhost:$rport] disconnect", $self->{servicename}, $$);
INetSim::Log::SubLog("[$rhost:$rport] stat: $stat_success", $self->{servicename}, $$);
}
1;
#
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