Function ReCreateServer

dns/server.go:50–92

(addr string, resolver *Resolver, mapper *ResolverEnhancer)

}

func ReCreateServer(addr string, resolver *Resolver, mapper *ResolverEnhancer) error {
	if addr == address && resolver != nil {
		handler := newHandler(resolver, mapper)
		server.setHandler(handler)
		return nil
	}

	if server.Server != nil {
		server.Shutdown()
		server = &Server{}
		address = ""
	}

	_, port, err := net.SplitHostPort(addr)
	if port == "0" || port == "" || err != nil {
		return nil
	}

	udpAddr, err := net.ResolveUDPAddr("udp", addr)
	if err != nil {
		return err
	}

	p, err := net.ListenUDP("udp", udpAddr)
	if err != nil {
		return err
	}

	err = sockopt.UDPReuseaddr(p)
	if err != nil {
		log.Warnln("Failed to Reuse UDP Address: %s", err)
	}

	address = addr
	handler := newHandler(resolver, mapper)
	server = &Server{handler: handler}
	server.Server = &D.Server{Addr: addr, PacketConn: p, Handler: server}

	go func() {
		server.ActivateAndServe()
	}()
	return nil
}