Created
December 4, 2017 16:22
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#!/usr/bin/env python3 | |
"""UDP Broadcast Sender""" | |
import socket | |
import sys | |
PORT = 33333 | |
def udp_send_socket(): | |
udp_socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) | |
udp_socket.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1) | |
return udp_socket | |
def send_runloop(sock, port=PORT): | |
while True: | |
data = input('>> ').strip() | |
if sock.sendto(data.encode(), ('255.255.255.255', port)): | |
print(f"[SEND] 255.255.255.255: '{data}'\n") | |
if data == 'stop': | |
break | |
sock.close() | |
print('Client stopped.') | |
if __name__ == '__main__': | |
print(f'Sending on UDP port {PORT}') | |
sock = udp_send_socket() | |
send_runloop(sock) | |
========================================================================== | |
#!/usr/bin/env python3 | |
"""UDP Broadcast Listener""" | |
import socket | |
import sys | |
PORT = 33333 | |
def udp_listen_socket(host='', port=PORT): | |
udp_socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) | |
udp_socket.bind((host, port)) | |
return udp_socket | |
def recv_runloop(sock): | |
while True: | |
data, addr = sock.recvfrom(1024) | |
if data == 'stop': | |
print('Client wants me to stop.') | |
break | |
else: | |
print(f"[RECV] {addr[0]}: '{data}'\n") | |
sock.close() | |
print('Server stopped.') | |
if __name__ == '__main__': | |
print(f'Listening on UDP port {PORT}') | |
sock = udp_listen_socket() | |
recv_runloop(sock) |
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