From 29777c6c5469a2efa20412924ba26bf9d3a64974 Mon Sep 17 00:00:00 2001
From: Johan Danielsson <joda@pdc.kth.se>
Date: Tue, 11 Nov 1997 04:15:33 +0000
Subject: [PATCH] Check for NULL keyblock.

git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@3924 ec53bebd-3082-4978-b11e-865c3cabbd6b
---
 lib/krb5/keyblock.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/lib/krb5/keyblock.c b/lib/krb5/keyblock.c
index 70378b64e..b77f317bc 100644
--- a/lib/krb5/keyblock.c
+++ b/lib/krb5/keyblock.c
@@ -42,8 +42,10 @@ void
 krb5_free_keyblock_contents(krb5_context context,
 			    krb5_keyblock *keyblock)
 {
-    memset(keyblock->keyvalue.data, 0, keyblock->keyvalue.length);
-    krb5_data_free (&keyblock->keyvalue);
+    if(keyblock){
+	memset(keyblock->keyvalue.data, 0, keyblock->keyvalue.length);
+	krb5_data_free (&keyblock->keyvalue);
+    }
 }
 
 void