#!/usr/bin/env ruby

# Script to extract images from the Hawking HNC230G
# 
# Copyright (C) Tim Haynes 
# HNC230G{at}stirfried.vegetable.org.uk    http://pig.sty.nu/
#
# Modified to work as a cheesy CGI by Mikey Dickerson,
# mikey@singingtree.com.  See http://obstrepero.us/hacks/webcam.shtml
#
# Redistributable under the terms of the GNU Public License: see
# <http://www.gnu.org/copyleft/gpl.html>
#
# Requires ruby
#

nopics=ARGV[1] || "1"
nopics=nopics.to_i

require 'socket'

s=TCPSocket.new('cam1', 4321)

nopics.times { |n|

  s.puts("0110")

  len=s.read(2).reverse.unpack("v")[0]
  2.times {s.getc }
  jpeg=s.read(len)

  puts "Content-type: image/jpeg\n"
  puts "Pragma: no-cache\n"
  puts "\n"
  puts jpeg
}