{
    # vim: ft=perl ts=4 sw=4 et:

    use esmith::ConfigDB;

    my $db = esmith::ConfigDB->open_ro;

    for my $domain ( $DB->get_all )
    {
        my %props = $domain->props;

        if (exists $props{Nameserver})
        {
            $props{Nameservers} ||= $props{Nameserver};
            $domain->delete_prop("Nameserver");
        }

        if (($props{Nameservers} || '') eq 'corporate')
        {
            $props{Nameservers} = '' 
                unless ($db->get_prop('dnscache', 'Forwarder'));
        }

        $props{Nameservers} ||= (($props{SystemPrimaryDomain}||'no') eq 'yes') ?
                                'localhost' : 'internet'; 


        $domain->merge_props(%props);
    }
}