gistfile1.diff

diff --git a/src/network/serverpackethandler.cpp b/src/network/serverpackethandler.cpp
index f658e10..1b27903 100644
--- a/src/network/serverpackethandler.cpp
+++ b/src/network/serverpackethandler.cpp
@@ -164,6 +164,13 @@ void Server::handleCommand_Init(NetworkPacket* pkt)
 	*/
 	const char* playername = playerName.c_str();
 
+	if (playerName.size() == 0) {
+		actionstream << "Server: Player with an empty name "
+				<< "tried to connect from " << addr_s << std::endl;
+		DenyAccess(pkt->getPeerId(), SERVER_ACCESSDENIED_WRONG_NAME);
+		return;
+	}
+
 	if (playerName.size() > PLAYERNAME_SIZE) {
 		actionstream << "Server: Player with an too long name "
 				<< "tried to connect from " << addr_s << std::endl;