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Manual Reference Pages  -  NET::PACKET::UDP (3)

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NAME

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

CONTENTS

SYNOPSIS



   use Net::Packet::Consts qw(:udp);
   require Net::Packet::UDP;

   # Build a layer
   my $layer = Net::Packet::UDP->new(
      dst => 31222,
   );
   $layer->pack;

   print RAW: .unpack(H*, $layer->raw)."\n";

   # Read a raw layer
   my $layer = Net::Packet::UDP->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 UDP layer.

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

See also <B>Net::Packet::LayerB> and <B>Net::Packet::Layer4B> for other attributes and methods.

ATTRIBUTES

<B>srcB>
<B>dstB> Source and destination ports.
<B>lengthB> The length in bytes of the datagram, including layer 7 payload (that is, layer 4 + layer 7).
<B>checksumB> Checksum of the datagram.

METHODS

<B>newB> Object constructor. You can pass attributes that will overwrite default ones. Default values:

src: getRandomHighPort()

dst: 0

length: 0

checksum: 0

<B>recvB> Will search for a matching replies in <B>framesSortedB> or <B>framesB> from a <B>Net::Packet::DumpB> object.
<B>packB> Packs all attributes into a raw format, in order to inject to network. Returns 1 on success, undef otherwise.
<B>unpackB> Unpacks raw data from network and stores attributes into the object. Returns 1 on success, undef otherwise.
<B>getPayloadLengthB> Returns the length in bytes of payload (layer 7 object).

AUTHOR

Patrice <GomoR> Auffret

COPYRIGHT AND LICENSE

Copyright (c) 2004-2009, 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
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perl v5.20.3 NET::PACKET::UDP (3) 2009-11-09

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