-void slattach __P((void));
-void slclose __P((struct tty *));
-void slinput __P((int, struct tty *));
-int slioctl __P((struct ifnet *, int, caddr_t));
-int slopen __P((dev_t, struct tty *));
-int sloutput __P((struct ifnet *,
+void slattach __P((void));
+void slclose __P((struct tty *));
+void slinput __P((int, struct tty *));
+int slioctl __P((struct ifnet *, int, caddr_t));
+int slopen __P((dev_t, struct tty *));
+int sloutput __P((struct ifnet *,