##    hylafax.pm: Fwctl service module to handle the hylafax protocol.##    This file is part of Fwctl.##    Author: Francis J. Lacoste <francis@iNsu.COM>##    Copyright (c) 1999,2000 iNsu Innovations Inc.##    This program is free software; you can redistribute it and/or modify#    it under the terms of the GNU General Public License as published by#    the Free Software Foundation; either version 2 of the License, or#    (at your option) any later version.#package Fwctl::Services::hylafax;use strict;use vars qw( @ISA );use Fwctl::RuleSet qw( :ports);use Fwctl::Services::ftp;use Carp;BEGIN {    @ISA = qw( Fwctl::Services::ftp );}sub new {  my $proto = shift;  my $class = ref $proto || $proto;  my $ctrl = getservbyname( "hylafax", "tcp");  $ctrl ||= 4559;  my $data = $ctrl - 1 ;  bless { pasv_ports	=> UNPRIVILEGED_PORTS,	  pasv		=> 1,	  port		=> 1,	  data_port	=> $data,	  ctrl_port	=> $ctrl,	}, $class;}sub valid_options {  my  $self = shift;  ();}1;=pod=head1 NAMEFwctl::Services::hylafax - Fwctl module to handle the HylaFax protocol.=head1 SYNOPSIS    accept   hylafax -src INTERNAL_NET -dst INT_IP=head1 DESCRIPTIONThe hylafax module is used to handle the HylaFAX protocol which isa variant of the FTP protocol.=head1 OPTIONSNo service specific options.=head1 AUTHORFrancis J. Lacoste <francis.lacoste@iNsu.COM>=head1 COPYRIGHTCopyright (c) 1999,2000 iNsu Innovations Inc.All rights reserved.This program is free software; you can redistribute it and/or modifyit under the terms of the GNU General Public License as published bythe Free Software Foundation; either version 2 of the License, or(at your option) any later version.=head1 SEE ALSOfwctl(8) Fwctl(3) Fwctl::RuleSet(3)=cut