Reorganized package tree and added doc comments

cmd/router/srvhnakra/hnakra.go

@@ -0,0 +1,34 @@
+package srvhnakra
+
+import "log"
+import "fmt"
+import "net"
+import "crypto/tls"
+import "hnakra/router"
+import "hnakra/config"
+
+type Server struct {
+	underlying net.Listener
+	Config     config.Config
+	Router     *router.Router
+}
+
+func (server *Server) ListenAndServe () (err error) {
+	server.underlying, err = tls.Listen (
+		"tcp", fmt.Sprint(":", server.Config.RouterPort()),
+		config.TLSConfigFor(server.Config))
+	if err != nil { return err }
+	
+	log.Println(".// router on", server.underlying.Addr())
+
+	for {
+		conn, err := server.underlying.Accept()
+		if err != nil { return err }
+		log.Println("-=E incoming connection from", conn.RemoteAddr())
+		server.Router.Accept(conn)
+	}
+}
+
+func (server *Server) Close () error {
+	return server.underlying.Close()
+}