From bd9b3cf55be5843eee108658acb05a494645caad Mon Sep 17 00:00:00 2001
From: Simon Kelley <simon@thekelleys.org.uk>
Date: Sat, 1 Mar 2014 16:12:28 +0000
Subject: [PATCH] Fix off-by-one overwrite.

---
 src/dnssec.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/dnssec.c b/src/dnssec.c
index 0f95f4a..2d00570 100644
--- a/src/dnssec.c
+++ b/src/dnssec.c
@@ -353,7 +353,8 @@ static void from_wire(char *name)
       l[len] = '.';
     }
 
-  *(l-1) = 0;
+  if (l != name)
+    *(l-1) = 0;
 }
 
 /* Input in presentation format */