From c81568d4319c7ee11e70d82375c85467d36bb7d9 Mon Sep 17 00:00:00 2001
From: Simon Josefsson <simon@josefsson.org>
Date: Sat, 12 Oct 2002 04:13:30 +0000
Subject: [PATCH] Only free if data was allocated by us.

---
 lib/xstep.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/lib/xstep.c b/lib/xstep.c
index e826780..7ca484d 100644
--- a/lib/xstep.c
+++ b/lib/xstep.c
@@ -1,4 +1,4 @@
-/* Xstep.c	perform one SASL authentication step in the X
+/* xstep.c	perform one SASL authentication step
  * Copyright (C) 2002  Simon Josefsson
  *
  * This file is part of libgsasl.
@@ -144,8 +144,10 @@ _gsasl_session_step_base64 (Gsasl_session_ctx *xctx,
 	}
     }
 
-  free(output);
-  free(input);
+  if (output != NULL)
+    free(output);
+  if (input != NULL)
+    free(input);
 
   return res;
 }
-- 
2.11.4.GIT