sfp_dns.py 文件源码

def resolveHost6(self, hostname):
        if hostname in self.resolveCache6:
            self.sf.debug("Returning IPv6 cached result for " + hostname + " (" +
                          str(self.resolveCache6[hostname]) + ")")
            return self.resolveCache6[hostname]

        try:
            addrs = list()
            res = socket.getaddrinfo(hostname, None, socket.AF_INET6)
            for addr in res:
                if addr[4][0] not in addrs:
                    addrs.append(addr[4][0])
            if len(addrs) < 1:
                return None
            self.resolveCache6[hostname] = addrs
            self.sf.debug("Resolved " + hostname + " to IPv6: " + str(addrs))
            return addrs
        except BaseException as e:
            self.sf.debug("Unable to IPv6 resolve " + hostname + " (" + str(e) + ")")
            return list()

    # Process a host/IP, parentEvent is the event that represents this entity