RES_USE_EDNS0
ac->ac_options |= RES_USE_EDNS0;
PRINTOPT(RES_USE_EDNS0, "USE_EDNS0");
if (ac->ac_options & (RES_USE_EDNS0 | RES_USE_DNSSEC))
if (ac->ac_options & (RES_USE_EDNS0 | RES_USE_DNSSEC))
if (as->as_ctx->ac_options & (RES_USE_EDNS0 | RES_USE_DNSSEC))
if (as->as_ctx->ac_options & (RES_USE_EDNS0 | RES_USE_DNSSEC))
{ "USE_EDNS0", RES_USE_EDNS0 },