_res_query_async_ctx
struct asr_query *_res_query_async_ctx(const char *, int, int, struct asr_ctx *);
as->as_subq = _res_query_async_ctx(as->as.ai.fqdn,
as->as_subq = _res_query_async_ctx(
as->as_subq = _res_query_async_ctx(
as->as_subq = _res_query_async_ctx(fqdn,
as = _res_query_async_ctx(name, class, type, ac);