50 static FILE		*protof = NULL;  variable
212 	if (protof == NULL)  in bt_getprotoent()
213 		protof = fopen(_PATH_BT_PROTOCOLS, "r");  in bt_getprotoent()
215 	if (protof == NULL)  in bt_getprotoent()
218 	if ((p = fgets(buf, sizeof(buf), protof)) == NULL)  in bt_getprotoent()
256 	if (protof == NULL)  in bt_setprotoent()
257 		protof = fopen(_PATH_BT_PROTOCOLS, "r");  in bt_setprotoent()
259 		rewind(protof);  in bt_setprotoent()
267 	if (protof != NULL) {  in bt_endprotoent()
268 		(void) fclose(protof);  in bt_endprotoent()
269 		protof = NULL;  in bt_endprotoent()