Colony

#!/usr/bin/env python3.0

import sys, time

from socket import *

from struct import *

hostname='localhost'

def inp(str):

    return input(str).encode('ascii')

def main():

    funcs = {1 : 'print_range_info'}

    buf = []

    sock = socket()

    sock.connect((hostname, int(sys.argv[1])))

    while (True):

        buf = sock.recv(100)

        if (buf):

            type = buf[2]

            if type in funcs.keys():

                globals()[funcs[type]](buf)

def print_range_info(packet):

    print ('Info from %d' % packet[0])

    src = packet[0]

    packet_length = packet[1]

    data = packet[3 : 3+packet_length]

    print("data length: %d" % len(data))

    ranges = unpack('hhhhhhh',data)

    print(ranges)

if __name__=='__main__':

    if len(sys.argv) < 2 or not str.isdecimal(sys.argv[1]):

        print("Usage: %s <portno>" % sys.argv[0])

        sys.exit()

    main()