From: Ulrich Drepper <drepper@redhat.com>
Date: Sat, 9 May 2009 16:12:41 +0000 (+0000)
Subject: [BZ #10128]
X-Git-Tag: cvs/fedora-glibc-20090509T1828~1
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=cf4f16cc889a74002d471c26a7b21aab04a9b25d;p=thirdparty%2Fglibc.git

[BZ #10128]

2009-05-05  Aurelien Jarno  <aurelien@aurel32.net>
	[BZ #10128]
	* resolv/res_query.c (__libc_res_nquery): If one query returns NOTIMP
	or FORMERR and the other NOERROR, don't raise an error.
---

diff --git a/ChangeLog b/ChangeLog
index 4dca208ceb6..e1316a0d4ea 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2009-05-05  Aurelien Jarno  <aurelien@aurel32.net>
+
+	[BZ #10128]
+	* resolv/res_query.c (__libc_res_nquery): If one query returns NOTIMP
+	or FORMERR and the other NOERROR, don't raise an error.
+
 2009-05-06  Ryan S. Arnold  <rsa@us.ibm.com>
 
 	[BZ #10118]
diff --git a/resolv/res_query.c b/resolv/res_query.c
index 6ac33ce64cc..9ffb3e36853 100644
--- a/resolv/res_query.c
+++ b/resolv/res_query.c
@@ -289,6 +289,13 @@ __libc_res_nquery(res_state statp,
 			break;
 		case FORMERR:
 		case NOTIMP:
+			/* Servers must not reply to AAAA queries with
+			   NOTIMP etc but some of them do.  */
+			if ((hp->rcode == NOERROR && ntohs (hp->ancount) != 0)
+			    || (hp2->rcode == NOERROR
+				&& ntohs (hp2->ancount) != 0))
+				goto success;
+			/* FALLTHROUGH */
 		case REFUSED:
 		default:
 			RES_SET_H_ERRNO(statp, NO_RECOVERY);