Net::Packet::NULL.3pm

Langue: en

Version: 2006-11-23 (mandriva - 01/05/08)

Section: 3 (Bibliothèques de fonctions)

Sommaire

NAME

Net::Packet::NULL - BSD loopback layer 2 object

SYNOPSIS

    #
    # Usually, you do not use this module directly
    #
    use Net::Packet::Consts qw(:null);
    require Net::Packet::NULL;
 
    # Build a layer
    my $layer = Net::Packet::NULL->new;
    $layer->pack;
 
    print 'RAW: '.unpack('H*', $layer->raw)."\n";
 
    # Read a raw layer
    my $layer = Net::Packet::NULL->new(raw => $raw);
 
    print $layer->print."\n";
    print 'PAYLOAD: '.unpack('H*', $layer->payload)."\n"
       if $layer->payload;

DESCRIPTION

This modules implements the encoding and decoding of the BSD loopback layer.

See also Net::Packet::Layer and Net::Packet::Layer2 for other attributes and methods.

ATTRIBUTES

type
Stores the type of encapsulated layer.

METHODS

new
Object constructor. You can pass attributes that will overwrite default ones. Default values:

type: NP_NULL_TYPE_IPv4

pack
Packs all attributes into a raw format, in order to inject to network. Returns 1 on success, undef otherwise.
unpack
Unpacks raw data from network and stores attributes into the object. Returns 1 on success, undef otherwise.
isTypeIpv4
isTypeIpv6
isTypeIp - is type IPv4 or IPv6
Helper methods. Return true is the encapsulated layer is of specified type, false otherwise.

CONSTANTS

Load them: use Net::Packet::Consts qw(:null);
NP_NULL_HDR_LEN
NULL header length in bytes.
NP_NULL_TYPE_IPv4
NP_NULL_TYPE_IPv6
Various supported encapsulated layer types.

AUTHOR

Patrice <GomoR> Auffret Copyright (c) 2004-2006, Patrice <GomoR> Auffret

You may distribute this module under the terms of the Artistic license. See LICENSE.Artistic file in the source distribution archive.

NetPacket, Net::RawIP, Net::RawSock