#!/usr/bin/perl -w

use strict;
use Getopt::Long;

my %opts;
$opts{server} = '127.0.0.1';

GetOptions(
  "server=s"     => \$opts{server},
  "host=s"       => \$opts{host}
);

if (!$opts{host}){
  print "You have to specify a hostname to lookup with the --host argument\n";
  exit(1);
}

my $res = qx(/usr/bin/nmblookup -U $opts{server} $opts{host});
my @lines = split /\n/, $res;
# Look at the last line
my $resp = $lines[$#lines];
my $status = 0;

if ($resp =~ m/^\d+\.\d+\.\d+\.\d+ $opts{host}/){
  $status = 1;
}

print $status . "\n";