getprotoent_r
while ((p = getprotoent_r(pr, pd)) != NULL) {
while ((p = getprotoent_r(pr, pd)) != NULL)
p = getprotoent_r(&_protoent_data.proto, &_protoent_data);
__weak_alias(getprotoent_r,_getprotoent_r)
struct protoent *getprotoent_r(struct protoent *, struct protoent_data *);