tcpwrap_check
(PECL tcpwrap >= 0.1.0)
tcpwrap_check — Performs a tcpwrap check
Description
string
$daemon,string
$address,string
$user = ?,bool
$nodns = false): bool
This function consults the /etc/hosts.allow and
/etc/hosts.deny files to check if access to service
daemon should be granted or denied for a client.
Parameters
-
daemon -
The service name.
-
address -
The client remote address. Can be either an IP address or a domain name.
-
user -
An optional user name.
-
nodns -
If
addresslooks like domain name then DNS is used to resolve it to IP address; setnodnstotrueto avoid this.
Return Values
This function returns true if access should be granted, false otherwise.
Examples
Example #1 Deny all connections from localhost
If your /etc/hosts.deny file contains:
php: 127.0.0.1
And your code looks like:
<?php
if (!tcpwrap_check('php', $_SERVER['REMOTE_ADDR'])) {
die('You are not welcome here');
}
?>
See Also
For more details please consult hosts_access(3) man page.
