shithub: plan9front

ref: c6ad540af56be95b458008ae3abd3432b71d49dd
dir: /sys/src/cmd/python/Demo/sockets/broadcast.py/

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# Send UDP broadcast packets

MYPORT = 50000

import sys, time
from socket import *

s = socket(AF_INET, SOCK_DGRAM)
s.bind(('', 0))
s.setsockopt(SOL_SOCKET, SO_BROADCAST, 1)

while 1:
    data = repr(time.time()) + '\n'
    s.sendto(data, ('<broadcast>', MYPORT))
    time.sleep(2)