From 58cbd8c4fd5322a39660ddf72eb0b1aebec978c3 Mon Sep 17 00:00:00 2001
From: Mark Andrews <marka@isc.org>
Date: Wed, 22 Aug 2012 18:38:46 +1000
Subject: [PATCH] back port parse_rdata fix to handle NULL commandline

---
 bin/nsupdate/nsupdate.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/bin/nsupdate/nsupdate.c b/bin/nsupdate/nsupdate.c
index 298f3a1dba..5f25d3c688 100644
--- a/bin/nsupdate/nsupdate.c
+++ b/bin/nsupdate/nsupdate.c
@@ -1044,6 +1044,11 @@ parse_rdata(char **cmdlinep, dns_rdataclass_t rdataclass,
 	dns_rdatacallbacks_t callbacks;
 	isc_result_t result;
 
+	if (cmdline == NULL) {
+		rdata->flags = DNS_RDATA_UPDATE;
+		return (STATUS_MORE);
+	}
+
 	while (*cmdline != 0 && isspace((unsigned char)*cmdline))
 		cmdline++;