note 51870 added to ref.sockets
| From: | fernando at lozano dot eti dot br | Date: | Wed, 13 Apr 2005 13:33:08 +0000 |
| Subject: | note 51870 added to ref.sockets | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-87952@lists.php.net to get a copy of this message | ||
There's a bug on the samples for this page. socket_connect does not return a negative number in
case of error, it returns a boolean, that is, non-zero means it worked, zero means there was an
error.
There's a sample that can be usefull. It's a primitive portscanner:
<html>
<body>
<h1>Socket Test (Portscanner)</h1>
<?php
error_reporting (E_ERROR);
$address = gethostbyname ('localhost');
$socket = socket_create (AF_INET, SOCK_STREAM, 0);
if ($socket < 0) {
echo "Can't create the socket: " . socket_strerror ($socket) .
"\n";
}
$result = socket_connect ($socket, $address, 80);
if ($result) {
echo "Open port: 80<br>";
}
else {
echo "Closed port: 80<br>";
}
socket_close ($socket);
?>
</body>
</html>
----
Manual Page -- http://www.php.net/manual/en/ref.sockets.php
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