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tcpwrap_check

Contents

(PECL tcpwrap >= 0.1.0)

tcpwrap_check — Performs a tcpwrap check

Description

tcpwrap_check ( 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.

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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 address looks like domain name then DNS is used to resolve it to IP address; set nodns to TRUE to avoid this.

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Return Values

This function returns TRUE if access should be granted, FALSE otherwise.

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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');
}
?>

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See Also

For more details please consult hosts_access(3) man page.

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Document created the 30/01/2003, last modified the 26/10/2018
Source of the printed document:https://www.gaudry.be/en/php-rf-tcpwrap-check.html

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References

  1. View the html document Language of the document:fr Manuel PHP : http://php.net

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