RES_USE_INET6
resv6 = bitset(RES_USE_INET6, _res.options);
_res.options |= RES_USE_INET6;
_res.options &= ~RES_USE_INET6;
resv6 = bitset(RES_USE_INET6, _res.options);
_res.options |= RES_USE_INET6;
_res.options &= ~RES_USE_INET6;
# ifdef RES_USE_INET6
{ "use_inet6", RES_USE_INET6 },
if (pvt->res->options & RES_USE_INET6) {
if (af == AF_INET && (pvt->res->options & RES_USE_INET6)) {
if (pvt->res->options & RES_USE_INET6)
if (af == AF_INET && (net_data->res->options & RES_USE_INET6) != 0U) {
if (net_data->res->options & RES_USE_INET6) {
(net_data->res->options & RES_USE_INET6) == 0U)
net_data->res->options &= ~RES_USE_INET6;
if (pvt->res->options & RES_USE_INET6) {
if (pvt->res->options & RES_USE_INET6) {
case RES_USE_INET6: return "inet6";
statp->options |= RES_USE_INET6;