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#!/usr/bin/perl
    eval 'exec /usr/bin/perl -S $0 ${1+"$@"}'
	if $running_under_some_shell;

=head1 NAME

libnetcfg - configure libnet

=head1 DESCRIPTION

The libnetcfg utility can be used to configure the libnet.
Starting from perl 5.8 libnet is part of the standard Perl
distribution, but the libnetcfg can be used for any libnet
installation.

=head1 USAGE

Without arguments libnetcfg displays the current configuration.

    $ libnetcfg
    # old config ./libnet.cfg
    daytime_hosts        ntp1.none.such
    ftp_int_passive      0
    ftp_testhost         ftp.funet.fi
    inet_domain          none.such
    nntp_hosts           nntp.none.such
    ph_hosts             
    pop3_hosts           pop.none.such
    smtp_hosts           smtp.none.such
    snpp_hosts           
    test_exist           1
    test_hosts           1
    time_hosts           ntp.none.such
    # libnetcfg -h for help
    $ 

It tells where the old configuration file was found (if found).

The C<-h> option will show a usage message.

To change the configuration you will need to use either the C<-c> or
the C<-d> options.

The default name of the old configuration file is by default
"libnet.cfg", unless otherwise specified using the -i option,
C<-i oldfile>, and it is searched first from the current directory,
and then from your module path.

The default name of the new configuration file is "libnet.cfg", and by
default it is written to the current directory, unless otherwise
specified using the -o option, C<-o newfile>.

=head1 SEE ALSO

L, L

=head1 AUTHORS

Graham Barr, the original Configure script of libnet.

Jarkko Hietaniemi, conversion into libnetcfg for inclusion into Perl 5.8.

=cut

# $Id: Configure,v 1.8 1997/03/04 09:22:32 gbarr Exp $

use strict;
use IO::File;
use Getopt::Std;
use ExtUtils::MakeMaker qw(prompt);
use File::Spec;

use vars qw($opt_d $opt_c $opt_h $opt_o $opt_i);

##
##
##

my %cfg = ();
my @cfg = ();

my($libnet_cfg_in,$libnet_cfg_out,$msg,$ans,$def,$have_old);

##
##
##

sub valid_host
{
 my $h = shift;

 defined($h) && (($cfg{'test_exist'} == 0) 
bool(false)