udp6-send.py

   1 #! /usr/bin/env python
   2 ######################################################################
   3 ##
   4 ##    Copyright (C) 2001-2002,
   5 ##    Department of Computer Science, University of Tromsø, Norway.
   6 ##
   7 ##    For distribution policy, see the accompanying file COPYING.
   8 ##
   9 ## Filename:      udp6-send.py
  10 ## Description:   Send a simple (IPv6) UDP packet
  11 ## Author:        Frode Vatvedt Fjeld <frodef@acm.org>
  12 ## Created at:    Sun Mar 10 20:20:11 2002
  13 ##
  14 ## $Id: udp6-send.py,v 1.1 2004/01/13 11:04:59 ffjeld Exp $
  15 ##
  16 ######################################################################
  17
  18 import sys,time,socket
  19
  20 if len (sys.argv) != 4:
  21     print "Usage: udp6-send <host> <port> <data>"
  22     sys.exit (1);
  23
  24 host = sys.argv[1]
  25 port = sys.argv[2]
  26 data = sys.argv[3]
  27
  28 mtu  = 1400
  29 packets = (len (data) / mtu) + 1
  30
  31 # print "host:", host, "port:", port, "data:", data
  32
  33 af, socktype, proto, canonname, sa = \
  34     socket.getaddrinfo(host, port, socket.AF_UNSPEC, socket.SOCK_DGRAM)[0]
  35 s = socket.socket (af, socktype, proto)
  36 s.connect (sa)
  37 for i in range (packets):
  38     print "sending packet", i, ".."
  39     s.send ("%d %d %s" % (i+1, packets, data[i*mtu:min(i*mtu+mtu, len (data))]))
  40     time.sleep (0.1)
  41 s.close ()
  42