From cdc11d8a7b075fb4284a03ffec6a3f0dbceb6604 Mon Sep 17 00:00:00 2001
From: loonycyborg <loonycyborg@gmail.com>
Date: Mon, 8 Feb 2021 17:25:52 +0300
Subject: [PATCH] Prevent hang in case of connecting to old server not
 supporting new handshake value

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

diff --git a/src/wesnothd_connection.cpp b/src/wesnothd_connection.cpp
index a320fcac6b88..986a7ce6defb 100644
--- a/src/wesnothd_connection.cpp
+++ b/src/wesnothd_connection.cpp
@@ -164,6 +164,9 @@ void wesnothd_connection::handle_handshake(const error_code& ec)
 {
 	MPTEST_LOG;
 	if(ec) {
+		if(ec == boost::asio::error::eof) {
+			throw std::runtime_error("Failed to complete handshake with server");
+		}
 		LOG_NW << __func__ << " Throwing: " << ec << "\n";
 		throw system_error(ec);
 	}