getservent_r
int getservent_r(struct servent *, struct servent_data *);
PROTO_NORMAL(getservent_r);
while ((error = getservent_r(se, sd)) == 0) {
while ((error = getservent_r(se, sd)) == 0) {
DEF_WEAK(getservent_r);
if (getservent_r(&serv, &_servent_data) != 0)