From e0b35142c1c72144bf251d23aa5b494b525d3a92 Mon Sep 17 00:00:00 2001
From: Tobias Brunner <tobias@strongswan.org>
Date: Thu, 12 Jun 2014 10:01:18 +0200
Subject: [PATCH] message: Make packet argument optional in generate()

---
 src/libcharon/encoding/message.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/libcharon/encoding/message.c b/src/libcharon/encoding/message.c
index 435b982052..44221b6aec 100644
--- a/src/libcharon/encoding/message.c
+++ b/src/libcharon/encoding/message.c
@@ -1650,7 +1650,10 @@ METHOD(message_t, generate, status_t,
 		}
 	}
 	generator->destroy(generator);
-	*packet = this->packet->clone(this->packet);
+	if (packet)
+	{
+		*packet = this->packet->clone(this->packet);
+	}
 	return SUCCESS;
 }