NAME

Net::Packet::UDP - User Datagram Protocol layer 4 object

SYNOPSIS

   use Net::Packet::UDP;

   # Build layer to inject to network
   my $udp = Net::Packet::UDP->new(
      dst => 31222,
   );

   # Decode from network to create the object
   # Usually, you do not use this, it is used by Net::Packet::Frame
   my $udp2 = Net::Packet::UDP->new(raw = $rawFromNetwork);

   print $udp->print, "\n";

DESCRIPTION

This modules implements the encoding and decoding of the UDP layer.

RFC: ftp://ftp.rfc-editor.org/in-notes/rfc768.txt

See also Net::Packet::Layer and Net::Packet::Layer4 for other attributes and methods.

ATTRIBUTES

src

dst

Source and destination ports.

length

The length in bytes of the datagram, including layer 7 payload (that is, layer 4 + layer 7).

checksum

Checksum of the datagram.

METHODS

new

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

src: getRandomHighPort()

dst: 0

length: 0

checksum: 0

recv

Will search for a matching replies in framesSorted or frames from a Net::Packet::Dump object.

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.

getPayloadLength

Returns the length in bytes of payload (layer 7 object).

AUTHOR

Patrice <GomoR> Auffret

COPYRIGHT AND LICENSE

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.

RELATED MODULES

NetPacket, Net::RawIP, Net::RawSock