Disable SSLv3 in example servers

changelog.md

@@ -1,3 +1,6 @@
+HEAD
+- Security: Disabled SSLv3 in example servers.
+
 0.4.0 - 2014-11-04
 - BREAKING API CHANGE: All WebSocket++ methods now throw an exception of type
   `websocketpp::exception` which derives from `std::exception`. This normalizes

examples/debug_client/debug_client.cpp

@@ -97,6 +97,7 @@ public:
         try {
             ctx->set_options(boost::asio::ssl::context::default_workarounds |
                              boost::asio::ssl::context::no_sslv2 |
+                             boost::asio::ssl::context::no_sslv3 |
                              boost::asio::ssl::context::single_dh_use);
         } catch (std::exception& e) {
             std::cout << e.what() << std::endl;

examples/echo_server_both/echo_server_both.cpp

@@ -46,6 +46,7 @@ context_ptr on_tls_init(websocketpp::connection_hdl hdl) {
     try {
         ctx->set_options(boost::asio::ssl::context::default_workarounds |
                          boost::asio::ssl::context::no_sslv2 |
+                         boost::asio::ssl::context::no_sslv3 |
                          boost::asio::ssl::context::single_dh_use);
         ctx->set_password_callback(bind(&get_password));
         ctx->use_certificate_chain_file("server.pem");

examples/echo_server_tls/echo_server_tls.cpp

@@ -38,6 +38,7 @@ context_ptr on_tls_init(websocketpp::connection_hdl hdl) {
     try {
         ctx->set_options(boost::asio::ssl::context::default_workarounds |
                          boost::asio::ssl::context::no_sslv2 |
+                         boost::asio::ssl::context::no_sslv3 |
                          boost::asio::ssl::context::single_dh_use);
         ctx->set_password_callback(bind(&get_password));
         ctx->use_certificate_chain_file("server.pem");