!747

main {
  psvm {
    String s = backtick("ip route show");
    List<String> lines = toLines(s);
    new TreeSet<String> ips;
    for (String line : lines) {
      if (line.indexOf("via") >= 0)
        ips.addAll(matchAll("\\d+\\.\\d+\\.\\d+\\.\\d+", line));
    }
    if (ips.isEmpty()) System.out.println("No gateways found.");
    for (String ip : ips) {
      System.out.println("Possible gateway found: " + ip);
      try {
        String page = loadHomepage(ip);
        System.out.println("Home page of device follows\n");
        System.out.println(page);
      } catch (Throwable e) {
        System.out.println("Could not load home page of " + ip + ".");
      }
    }
  }
  
  static String loadHomepage(String ip) tex {
    return loadPage("http://" + ip + ":8888");
  }
}