2014-07-01 21:37:52 +00:00
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import sys
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2012-12-31 22:13:56 +00:00
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def lookup(address, port, s):
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"""
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Parse the pfctl state output s, to look up the destination host
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matching the client (address, port).
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Returns an (address, port) tuple, or None.
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"""
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spec = "%s:%s"%(address, port)
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for i in s.split("\n"):
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2013-06-16 04:23:36 +00:00
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if "ESTABLISHED:ESTABLISHED" in i and spec in i:
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s = i.split()
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if len(s) > 4:
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2014-07-01 21:37:52 +00:00
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if "freebsd" in sys.platform:
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# strip parentheses for FreeBSD pfctl
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s = s[3][1:-1].split(":")
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else:
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s = s[4].split(":")
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2012-12-31 22:13:56 +00:00
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if len(s) == 2:
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return s[0], int(s[1])
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