From 4e6b3a5afc1c546edddcb1d8e09fb5a4721ab67c Mon Sep 17 00:00:00 2001
From: Miek Gieben <miek@miek.nl>
Date: Sun, 22 Sep 2013 19:35:10 +0100
Subject: [PATCH] Check for the end of the message

---
 msg.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/msg.go b/msg.go
index 098f0a18..ad4d0a09 100644
--- a/msg.go
+++ b/msg.go
@@ -471,6 +471,11 @@ func packStructValue(val reflect.Value, msg []byte, off int, compression map[str
 					// Length
 					msg[off+2], msg[off+3] = packUint16(uint16(len(b)))
 					off += 4
+					if off+len(b) > lenmsg {
+						copy(msg[off:], b)
+						off = lenmsg
+						continue
+					}
 					// Actual data
 					copy(msg[off:off+len(b)], b)
 					off += len(b)