package T;

BEGIN
{
  require Exporter;

  our $VERSION = 1.1;

  our @ISA = 'Exporter';
  our @EXPORT = qw(rev_ip);
}

use strict;
use warnings;

use Data::Dumper;
use Net::DNS::Resolver;
use Net::Whois::ARIN;

my $dns = Net::DNS::Resolver->new;
my $w = Net::Whois::ARIN->new; 

sub rev_ip
{
  my ($ip) = @_;
  my $org = '';
  my $rev = '';

  $org = join ", ", map { $_->OrgName } $w->network($ip);

  my $packet = $dns->search($ip);
  $rev = join ', ', map { $_->rdatastr } grep { $_->type eq 'PTR' } $packet->answer if $packet;

  return "[$ip] [$org] [$rev]";
}