From: Brian Wellington <source@isc.org>
Date: Tue, 26 Sep 2000 21:40:57 +0000 (+0000)
Subject:  491.	[bug]		nsupdate would segfault when sending certain
X-Git-Tag: v9.0.0^2~12
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=696560604aabdbe9c3e459430bf5158ac2e67347;p=thirdparty%2Fbind9.git

 491.	[bug]		nsupdate would segfault when sending certain
			prerequisites with empty RDATA. [RT #356]
---

diff --git a/CHANGES b/CHANGES
index 914672fd733..552749a6d92 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,6 @@
+ 491.	[bug]		nsupdate would segfault when sending certain
+			prerequisites with empty RDATA. [RT #356]
+
  488.	[bug]		Locks weren't properly destroyed in some cases.
 
  476.	[bug]		A zone could expire while a zone transfer was in
diff --git a/lib/dns/rdata.c b/lib/dns/rdata.c
index 417a1caae63..23f244ca84e 100644
--- a/lib/dns/rdata.c
+++ b/lib/dns/rdata.c
@@ -15,7 +15,7 @@
  * SOFTWARE.
  */
 
-/* $Id: rdata.c,v 1.101.2.3 2000/09/19 02:02:23 bwelling Exp $ */
+/* $Id: rdata.c,v 1.101.2.4 2000/09/26 21:40:55 bwelling Exp $ */
 
 #include <config.h>
 #include <ctype.h>
@@ -443,6 +443,12 @@ dns_rdata_towire(dns_rdata_t *rdata, dns_compress_t *cctx,
 
 	REQUIRE(rdata != NULL);
 
+	/*
+	 * Some DynDNS meta-RRs have empty rdata.
+	 */
+	if (rdata->length == 0)
+		return (ISC_R_SUCCESS);
+
 	st = *target;
 
 	TOWIRESWITCH