printproto
static void printproto(FILE *, uint8_t);
printproto(fp, proto);
printproto(p, pr, NULL);
printproto(pr, np->in_p, np);
printproto(pr, np->in_p, NULL);
printproto(pr, np->in_p, np);
printproto(pr, np->in_p, np);
extern void printproto __P((struct protoent *, int, struct ipnat *));