Courier::Filter::Util(3) Utility class used by the Courier::Filter framework

SYNOPSIS


use Courier::Filter::Util qw(
ipv4_address_pattern
ipv6_address_pattern
loopback_address_pattern
);

$message->remote_host =~ / ^ (?: ::ffff: )? $(\ipv4_address_pattern} $ /x;
$message->remote_host =~ / ^ $(\ipv6_address_pattern} $ /x;
$message->remote_host =~ / ^ ${\loopback_address_pattern} $ /x;

DESCRIPTION

Courier::Filter::Util is Courier::Filter's utility class.

Constants

The following constants are provided:
ipv4_address_pattern
A regular expression matching an IPv4 address in ``dotted decimal'' notation.
ipv6_address_pattern
A regular expression matching an IPv6 address in full RFC 4291 syntax.
loopback_address_pattern
A regular expression matching an IPv4 or IPv6 loopback address ("127.n.n.n", "::ffff:127.n.n.n.n", "::1").

AUTHOR

Julian Mehnle <[email protected]>