#!/usr/bin/perl

use strict;
use Net::Nslookup;

my $input    = '/var/tmp/clean';
my $ours     = '/var/tmp/ours';
my $theirs   = '/var/tmp/theirs';
my $unknown  = '/var/tmp/unknown';


open(IN, "$input")      || die "Can't open $input\nReason: $!\n";
open(OUT, ">$ours")     || die "Can't create $ours\nReason: $!\n";
open(OUT1, ">$theirs")  || die "Can't create $theirs\nReason: $!\n";
open(OUT2, ">$unknown") || die "Can't create $unknown\nReason: $!\n";

my @ns;

while(<IN>) {
  my $domain = $_;
  chomp $domain;
  @ns = nslookup(domain => "$domain", type => "NS");
  &ours;
#  for(@ns) {
#  print "@ns\n";
#  }
}

sub ours {
  my %ours (
   '24.56.102.10'   => ns1.t,
   '24.56.100.10'   => ns2.t,
   '24.56.100.11'   => ns3.t
  )
  my %theirs (
   '68.168.192.17'  => ns1.a,
   '24.50.78.2'     => ns2.a,
   '68.168.224.177' => ns3.a
  (

   if($ours{ns1.t}) {
     print OUT "$_\n";
  }
   elseif($theirs{ns1.a}) {
     print OUT1 "$_\n";
  }
}

close(IN);
close(OUT);
close(OUT1);
close(OUT2);
exit;