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import socket
import struct
# Python socket module does not have this constant
SO_ORIGINAL_DST = 80
class Resolver(object):
def original_addr(self, csock):
odestdata = csock.getsockopt(socket.SOL_IP, SO_ORIGINAL_DST, 16)
_, port, a1, a2, a3, a4 = struct.unpack("!HHBBBBxxxxxxxx", odestdata)
address = "%d.%d.%d.%d" % (a1, a2, a3, a4)
return address, port
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