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Net::Packet::UDP(3) User Contributed Perl Documentation Net::Packet::UDP(3)
 

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

   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;

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.

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.

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).

Patrice <GomoR> Auffret

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.

NetPacket, Net::RawIP, Net::RawSock
2009-11-09 perl v5.28.1

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