From 7a0af9ae18cda6d4f0d735abd0f903eebc8a206a Mon Sep 17 00:00:00 2001
From: Love Hornquist Astrand <lha@h5l.org>
Date: Mon, 21 Sep 2009 06:21:23 -0700
Subject: [PATCH] Its ok to pass down NULL as the context handle to error
 string function

Just ignore setting the error string if that is the case.
---
 lib/hx509/error.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/lib/hx509/error.c b/lib/hx509/error.c
index 45813efb3..fc3cf90b3 100644
--- a/lib/hx509/error.c
+++ b/lib/hx509/error.c
@@ -67,8 +67,10 @@ free_error_string(hx509_error msg)
 void
 hx509_clear_error_string(hx509_context context)
 {
-    free_error_string(context->error);
-    context->error = NULL;
+    if (context) {
+	free_error_string(context->error);
+	context->error = NULL;
+    }
 }
 
 /**
@@ -91,6 +93,9 @@ hx509_set_error_stringv(hx509_context context, int flags, int code,
 {
     hx509_error msg;
 
+    if (context == NULL)
+	return;
+
     msg = calloc(1, sizeof(*msg));
     if (msg == NULL) {
 	hx509_clear_error_string(context);