[PATCH][BZ #11950] res_send fails with ETIMEDOUT on successful DNS UPDATE.

[Ondřej Bílka]

Hi,

This is bug https://sourceware.org/bugzilla/show_bug.cgi?id=11950
had a patch for three years and no discussion.

A code changed in meantime, a closest equivalent now is patch below
but I do not know if conditions added made added check retundant.

Comments?


	* resolv/res_send.c: Handle DNS UPDATE.

diff --git a/resolv/res_send.c b/resolv/res_send.c
index 5a73696..7bbc74b 100644
--- a/resolv/res_send.c
+++ b/resolv/res_send.c
@@ -1369,7 +1369,8 @@ send_dg(res_state statp,
 			if (!statp->pfcode)
 				return (0);
 		}
-		if (anhp->rcode == NOERROR && anhp->ancount == 0
+		if (anhp->rcode == NOERROR && anhp->ancount == 0 
+		    && anhp->opcode != ns_o_update
 		    && anhp->aa == 0 && anhp->ra == 0 && anhp->arcount == 0) {
 			DprintQ(statp->options & RES_DEBUG,
 				(stdout, "referred query:\n"),