#!/opt/gnu-irix/bin/perl

use strict;

use HTTP::Request::Common qw(POST);
use LWP::UserAgent;

my $ua = new LWP::UserAgent;

my $req = POST 'http://www.usps.com/cgi-bin/zip4/zip4inq2',
               [
                 'Firm' => '',
                 'Urbanization' => '',
                 'Delivery Address' => '3601 Fallstone Court',
                 'City' => '',
                 'State' => '',
                 'Zip Code' => '20744',
                 'Submit' => 'Process'
               ];

my $resp = $ua->request($req);

if ($resp->is_success())
{
  print $resp->content();
}
else
{
  print "Problem\n\n", $resp->as_string();
}