mirror of https://github.com/kbandla/dpkt.git
45 lines
1.4 KiB
Python
45 lines
1.4 KiB
Python
#!/usr/bin/env python
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import socket
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from dpkt import netbios
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import ping
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class NBTPing(ping.Ping):
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def __init__(self):
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ping.Ping.__init__(self)
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self.op.add_option('-p', dest='port', type='int', default=137,
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help='Remote NetBIOS name server port')
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def open_sock(self, opts):
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sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
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sock.connect((opts.ip, opts.port))
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sock.settimeout(opts.wait)
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return sock
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def gen_ping(self, opts):
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for i in xrange(opts.count):
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ns = netbios.NS(id=i,
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qd=[ netbios.NS.Q(type=netbios.NS_NBSTAT, name='*') ])
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yield str(ns)
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def print_header(self, opts):
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print 'NBTPING %s:' % opts.ip
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def print_reply(self, opts, buf, rtt):
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ns = netbios.NS(buf)
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d = {}
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for rr in ns.an:
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for name, svc, flags in rr.nodenames:
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unique = (flags & netbios.NS_NAME_G == 0)
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if svc == 0 and unique and 'host' not in d:
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d['host'] = name
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elif svc == 0x03 and unique:
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if 'user' not in d or d['user'].startswith(d['host']):
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d['user'] = name
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print '%d bytes from %s: id=%d time=%.3f ms host=%s user=%s' % \
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(len(buf), opts.ip, ns.id, rtt * 1000,
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d.get('host', ''), d.get('user', ''))
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if __name__ == '__main__':
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NBTPing().main()
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