function sendpacket($packet)
{
global $proxy, $host, $port, $html;
if ($proxy == '') {
$ock = fsockopen(gethostbyname($host), $port);
if (!$ock) {
echo 'No response from ' . htmlentities($host) . '...';
die;
}
} else {
$proxy = trim($proxy);
$parts = explode(':', $proxy);
if (!valid_ipv4($parts[0])) {
echo htmlentities($proxy) . ' -> not a valid proxy...';
die;
}
if (intval($parts[1]) <= 0) {
echo htmlentities($proxy) . ' -> not a valid proxy...';
die;
}
echo 'Connecting to ' . $parts[0] . ':' . $parts[1] . ' proxy...<br>';
$ock = fsockopen($parts[0], $parts[1]);
if (!$ock) {
echo 'No response from proxy...';
die;
}
}
fputs($ock, $packet);
if ($proxy == '') {
$html = '';
while (!feof($ock)) {
$html .= fgets($ock);
}
} else {
$html = '';
while (!feof($ock) or !eregi(chr(0xd) . chr(0xa) . chr(0xd) . chr(0xa), $html)) {
$html .= fread($ock, 1);
}
}
fclose($ock);
echo nl2br(htmlentities($html));
}
[expect php]
[file]
<?php
function valid_ipv4($ip_addr)
{
$num = "([0-9]|^1?\\d\\d\$|2[0-4]\\d|25[0-5])";
if (preg_match("/{$num}\\.{$num}\\.{$num}\\.{$num}/", $ip_addr, $matches)) {
return $matches[0];
} else {
return false;
}
}
var_dump(valid_ipv4("241.25.16.22"));
var_dump(valid_ipv4("256.41.15.11"));
?>
