From 6a36ec63d75f6ef354d8689027d23d3f16d08f8d Mon Sep 17 00:00:00 2001
From: Jakob Borg <jakob@nym.se>
Date: Tue, 18 Aug 2015 08:42:39 +0200
Subject: [PATCH] Empty messages with the compression bit set should be
 accepted

---
 protocol.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/protocol.go b/protocol.go
index 420b2085..8e73afea 100644
--- a/protocol.go
+++ b/protocol.go
@@ -412,7 +412,7 @@ func (c *rawConnection) readMessage() (hdr header, msg encodable, err error) {
 	}
 
 	msgBuf := c.rdbuf0
-	if hdr.compression {
+	if hdr.compression && msglen > 0 {
 		c.rdbuf1 = c.rdbuf1[:cap(c.rdbuf1)]
 		c.rdbuf1, err = lz4.Decode(c.rdbuf1, c.rdbuf0)
 		if err != nil {