res_hostalias
const char * res_hostalias(const res_state, const char *, char *, size_t);
(cp = res_hostalias(res, name, abuf, sizeof(abuf))) != NULL)
(cp = res_hostalias(statp, name, abuf, sizeof abuf)))
return (res_hostalias(&_res, name, abuf, sizeof abuf));
if (!dots && (cp = res_hostalias(statp, name, tmp, sizeof tmp))!= NULL)