#!/usr/bin/env python
import argparse
import socket
import sys
"""
Simple script to send a SSDP M-SEARCH message out on a given interface.
"""
def main():
parser = argparse.ArgumentParser()
parser.add_argument('--ifAddr', help='Send out on the interface with the given address.')
args = parser.parse_args()
msearch = 'M-SEARCH * HTTP/1.1\r\n' \
'HOST:239.255.255.250:1900\r\n' \
'ST:upnp:rootdevice\r\n' \
'MX:2\r\n' \
'MAN:"ssdp:discover"\r\n' \
'\r\n'
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, socket.IPPROTO_UDP)
if args.ifAddr:
s.setsockopt(socket.IPPROTO_IP, socket.IP_MULTICAST_IF, socket.inet_aton(args.ifAddr))
s.settimeout(2)
s.sendto(msearch.encode('utf-8'), ('239.255.255.250', 1900))
try:
while True:
data, addr = s.recvfrom(65535)
try:
print('%s [%s]' % (socket.gethostbyaddr(addr[0])[0], addr[0]))
except socket.herror:
print(addr[0])
print(data)
except socket.timeout:
pass
if __name__ == '__main__':
sys.exit(main())
