[%
  # Returns a list of IPs to ping.
  # @param argv.dns  add dns IPs
  #
  # @return out		list of pingnodes.
-%]
[% PERL -%]
my $gateway = (split(" ", `ip route | grep default`))[2];
my @nodes = ($gateway);
[% IF argv.dns == 'yes' %]
my @dnsnodes = (split(" ", `grep -v '^#' /etc/resolv.conf | grep nameserver | cut -f2 -d' '|xargs`));

foreach my $host (@dnsnodes)
{
  my $res = `/bin/ping -c 1 -s 164 $host -W 1 2>/dev/null`;
  if ($res =~ '1 received')
  {
    if ($res =~ 'truncated') { print "#$host reply truncated\n"; }
    else { push(@nodes, $host); }
  }
  else
  {
    print "# $host error\n";
  }
}
[% END %]
$stash->set(out => \@nodes);
[% END -%]