<?php
function webserverspy($serverurl)
{
$filepointer = fsockopen($serverurl,80,&$errno,&$errstr);
if(!$filepointer)
{
$webserver="error: $errstr ($errno)<br>\n";
}
else
{
fputs($filepointer,"get / http/1.0\n\n");
while(!feof($filepointer))
{
$webserver=fgets($filepointer,4096);
if (ereg("^server:",$webserver))
{
$webserver=trim(ereg_replace("^server:","",$webserver));
break;
}
}
fclose($filepointer);
}
return($webserver);
}
?>
<?php /**************** example *******************/
if ($serverurl<>"") { $webserver=webserverspy($serverurl); }
?>
<html>
<head>
<title>ostis webserver spy</title>
</head>
<body>
<?php
if ($webserver<>"" and $serverurl<>"")
{
echo("<pre>server $serverurl is running $webserver.</pre>");
}
?>
<form action="<?php echo($php_self); ?>" method="post">
http:// <input type="text" name="serverurl" size="40" maxlength="100">
<input type=hidden name="webserver" value="">
<input type=submit value="spy this
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