From 87dcee6ac2058bbf5264ea7f82874bba67277252 Mon Sep 17 00:00:00 2001
From: gregorycu <gregory.currie@gmail.com>
Date: Sun, 3 Jan 2016 18:25:09 +1100
Subject: [PATCH] Prevent technically unsafe access with empty vector

---
 src/network/networkpacket.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/network/networkpacket.cpp b/src/network/networkpacket.cpp
index b5e451cdb..2b308f334 100644
--- a/src/network/networkpacket.cpp
+++ b/src/network/networkpacket.cpp
@@ -77,6 +77,9 @@ void NetworkPacket::putRawString(const char* src, u32 len)
 		m_data.resize(m_datasize);
 	}
 
+	if (m_datasize == 0)
+		return;
+
 	memcpy(&m_data[m_read_offset], src, len);
 	m_read_offset += len;
 }
-- 
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