56 lines
1.3 KiB
Python
Executable file
56 lines
1.3 KiB
Python
Executable file
#!/usr/bin/env python
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import socket
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import struct
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import time
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import pickle
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import os
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MCAST_GRP = '224.2.127.254' # sap.mcast.net
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MCAST_PORT = 9875
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timeout=60
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path='/usr/scripts/var/tv/sap.txt'
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pickeled_path='/usr/scripts/var/tv/sap.pickel'
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sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, socket.IPPROTO_UDP)
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sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
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sock.bind(('', MCAST_PORT))
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mreq = struct.pack("4sl", socket.inet_aton(MCAST_GRP), socket.INADDR_ANY)
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sock.setsockopt(socket.IPPROTO_IP, socket.IP_ADD_MEMBERSHIP, mreq)
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service={}
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service_simple={}
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start=time.time()
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while True:
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msg=sock.recv(10240).split('\r\n')
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# print msg
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s=None
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ip=None
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for line in msg[:-1]:
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(tag, value) = line.split('=', 1)
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print (tag, value)
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if tag=='s':
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s=value
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if tag=='c':
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ip=value.split(' ')[2].split('/')[0]
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if tag=='a' and value.startswith('x-plgroup:'):
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group=value[10:]
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service_simple[s]=ip
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try:
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service[group][s]=ip
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except KeyError:
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service[group]={s:ip}
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# print "%s: %s" % (s, ip)
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if time.time() - start > timeout:
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break
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f=open(path, 'w')
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l=service_simple.items()
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l.sort()
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for (name, ip) in l:
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f.write("%s:%s\n" % (name, ip))
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f.close()
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pickle.dump(service, open(pickeled_path + '.tmp', 'w'))
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os.rename(pickeled_path + '.tmp', pickeled_path)
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