#!/usr/bin/php -q
<?PHP

  /**
   * Read cluster-chain of a file at a given cluster in image-file
   * 
   * ~#> php readchain.php {path to image} {cluster number}
   * 
   * @author Bernd Holzmueller <bernd@tiggerswelt.net>
   * @license http://creativecommons.org/licenses/by-sa/3.0/de/ Creative Commons Attribution-Share Alike 3.0 Germany   
   * @copyright Copyright &copy; 2010 tiggersWelt.net
   **/
  
  require ('loadfat.php');
  
  if (!is_object ($Image))
    die ('Something went wrong...' . "\n");
  
  // Retrive cluster
  $p = null;
  
  if (isset ($argv [2])) {
    if (substr ($argv [2], 0, 2) == '0x')
      $p = hexdec ($argv [2]);
    else
      $p = intval ($argv [2]);
  }
  
  // Output the chain
  echo '0x' . dechex ($p) . ' ';
  
  while ($p = $Image->getNextCluster ($p))
    echo '0x' . dechex ($p) . ' ';
  
  echo "\n";

?>