RES_IGNTC
{ "igntc", RES_IGNTC },
if (!(_res.options & RES_IGNTC) && anhp->tc) {
case RES_IGNTC: return "igntc";
if (!(statp->options & RES_IGNTC) && anhp->tc) {
if (hp->tc && !usingTCP && (statp->options & RES_IGNTC) == 0U) {
nstatp->options &= ~RES_IGNTC;
nstatp->options |= RES_IGNTC;