1 /* getproto.c 4.1 82/08/25 */ 2 3 #include <netdb.h> 4 5 struct protoent * 6 getproto(proto) 7 register int proto; 8 { 9 register struct protoent *p; 10 11 setprotoent(0); 12 while (p = getprotoent()) 13 if (p->p_proto == proto) 14 break; 15 endprotoent(); 16 return (p); 17 } 18