Zajzalem w trzewia boga manuala i ujzalem stwora:
<?php
class Net_Ping
{
var $icmp_socket;
var $request;
var $request_len;
var $reply;
var $errstr;
var $time;
var $timer_start_time;
function Net_Ping()
{
$this->icmp_socket = socket_create(AF_INET, SOCK_RAW, 1);
socket_set_block($this->icmp_socket);
}
function ip_checksum($data)
{
for($i=0;$i<strlen($data);$i += 2)
{
if($data[$i+1
]) $bits = unpack('n*',$data[$i].$data[$i+1
]); else $bits = unpack('C*',$data[$i]); $sum += $bits[1];
}
while ($sum>>16) $sum = ($sum & 0xffff) + ($sum >> 16);
$checksum = pack('n1',~
$sum); return $checksum;
}
function start_time()
{
}
function get_time($acc=2)
{
// format start time
$start_time = explode (\" \", $this->timer_start_time); $start_time = $start_time[1] + $start_time[0];
// get and format end time
$end_time = explode (\" \", microtime()); $end_time = $end_time[1] + $end_time[0];
}
function Build_Packet()
{
$data = \"abcdefghijklmnopqrstuvwabcdefghi\"; // the actual test data
$type = \"x08\"; // 8 echo message; 0 echo reply message
$code = \"x00\"; // always 0 for this program
$chksm = \"x00x00\"; // generate checksum for icmp request
$id = \"x00x00\"; // we will have to work with this later
$sqn = \"x00x00\"; // we will have to work with this later
// now we need to change the checksum to the real checksum
$chksm = $this->ip_checksum($type.$code.$chksm.$id.$sqn.$data);
// now lets build the actual icmp packet
$this->request = $type.$code.$chksm.$id.$sqn.$data;
$this->request_len = strlen($this->request); }
function Ping($dst_addr,$timeout=5,$percision=3)
{
// lets catch dumb people
if ((int)$timeout <= 0) $timeout=5;
if ((int)$percision <= 0) $percision=3;
// set the timeout
socket_set_option($this->icmp_socket,
SOL_SOCKET, // socket level
SO_RCVTIMEO, // timeout option
\"sec\"=>$timeout, // Timeout in seconds
\"usec\"=>0 // I assume timeout in microseconds
)
);
if ($dst_addr)
{
if (@socket_connect($this->icmp_socket, $dst_addr, NULL))
{
} else {
$this->errstr = \"Cannot connect to $dst_addr\";
return FALSE;
}
$this->Build_Packet();
$this->start_time();
socket_write($this->icmp_socket, $this->request, $this->request_len);
if (@socket_recv($this->icmp_socket, &$this->reply, 256, 0))
{
$this->time = $this->get_time($percision);
return $this->time;
} else {
$this->errstr = \"Timed out\";
return FALSE;
}
} else {
$this->errstr = \"Destination address not specified\";
return FALSE;
}
}
}
$ping = new Net_Ping;
$ping->ping(\"www.google.ca\");
if ($ping->time)
echo \"Time: \".$ping->time; else
?>
trzewia jego nie powiedziala co zrobic, to juz musisz sam zadecydowac, ja tylko pokazalem