Взимане на MAC адреса на потребител

public static String getMac() throws java.io.IOException {
Process p = Runtime.getRuntime().exec(“getmac /fo csv /nh”);
java.io.BufferedReader in = new java.io.BufferedReader(new java.io.InputStreamReader(p.getInputStream()));
String line;
line = in.readLine();
String[] result = line.split(“,”);
return result[0].replace(‘”‘, ‘ ‘).trim();
}

<?
$ipAddress=$_SERVER['REMOTE_ADDR'];
$macAddr=false;

#run the external command, break output into lines
$arp=`arp -a $ipAddress`;
$lines=explode("\n", $arp);

#look for the output line describing our IP address
foreach($lines as $line)
{
   $cols=preg_split('/\s+/', trim($line));
   if ($col[0]==$ipAddress)
   {
       $macAddr=$col[1];
   }
}
?>

<? 
function returnmacaddress() { 
// This code is under the GNU Public Licence 
// Written by michael_stankiewicz {don't spam} at yahoo {no spam} dot com 
// Tested only on linux, please report bugs

// WARNING: the commands 'which' and 'arp' should be executable 
// by the apache user; on most linux boxes the default configuration 
// should work fine

// Get the arp executable path 
$location = `which arp`; 
$location = rtrim($location); 
// Execute the arp command and store the output in $arpTable 
$arpTable = `$location -n`; 
// Split the output so every line is an entry of the $arpSplitted array 
$arpSplitted = split("\n",$arpTable); 
// Get the remote ip address (the ip address of the client, the browser) 
$remoteIp = $GLOBALS['REMOTE_ADDR']; 
$remoteIp = str_replace(".", "\\.", $remoteIp); 
// Cicle the array to find the match with the remote ip address 
foreach ($arpSplitted as $value) { 
// Split every arp line, this is done in case the format of the arp 
// command output is a bit different than expected 
$valueSplitted = split(" ",$value); 
foreach ($valueSplitted as $spLine) { 
if (preg_match("/$remoteIp/",$spLine)) { 
$ipFound = true; 
} 
// The ip address has been found, now rescan all the string 
// to get the mac address 
if ($ipFound) { 
// Rescan all the string, in case the mac address, in the string 
// returned by arp, comes before the ip address 
// (you know, Murphy's laws) 
reset($valueSplitted); 
foreach ($valueSplitted as $spLine) { 
if (preg_match("/[0-9a-f][0-9a-f][:-]". 
"[0-9a-f][0-9a-f][:-]". 
"[0-9a-f][0-9a-f][:-]". 
"[0-9a-f][0-9a-f][:-]". 
"[0-9a-f][0-9a-f][:-]". 
"[0-9a-f][0-9a-f]/i",$spLine)) { 
return $spLine; 
} 
} 
} 
$ipFound = false; 
} 
} 
return false; 
} 
?>