<?php
namespace Jackbooted\Util;
/*
* @copyright Confidential and copyright (c) 2016 Jackbooted Software. All rights reserved.
*
* Written by Brett Dutton of Jackbooted Software
* brett at brettdutton dot com
*/
class NetworkUtils extends JB {
public static function whatIsMyIP () {
return file_get_contents( 'https://api.ipify.org' );
}
public static function ping( $host, $timeout = 1) {
/* ICMP ping packet with a pre-calculated checksum */
$package = "\x08\x00\x7d\x4b\x00\x00\x00\x00PingHost";
$ts = microtime( true );
if ( ( $socket = @socket_create( AF_INET, SOCK_RAW, 1 ) ) === false ) {
die( __METHOD__ . ' Can only be called if you are root' );
}
socket_set_option( $socket, SOL_SOCKET, SO_RCVTIMEO, [ 'sec' => $timeout, 'usec' => 0 ] );
socket_connect( $socket, $host, null );
socket_send( $socket, $package, strLen($package), 0 );
if ( socket_read( $socket, 255 ) ) {
$result = microtime(true) - $ts;
}
else {
$result = false;
}
socket_close( $socket );
return $result;
}
}
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