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diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/gssapi_client.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/gssapi_client.hpp
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+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/gssapi_client.hpp
@@ -0,0 +1,93 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_GSSAPI_CLIENT_HPP_INCLUDED__
+#define __ZMQ_GSSAPI_CLIENT_HPP_INCLUDED__
+
+#ifdef HAVE_LIBGSSAPI_KRB5
+
+#include "gssapi_mechanism_base.hpp"
+
+namespace zmq
+{
+
+    class msg_t;
+
+    class gssapi_client_t :
+        public gssapi_mechanism_base_t
+    {
+    public:
+
+        gssapi_client_t (const options_t &options_);
+        virtual ~gssapi_client_t ();
+
+        // mechanism implementation
+        virtual int next_handshake_command (msg_t *msg_);
+        virtual int process_handshake_command (msg_t *msg_);
+        virtual int encode (msg_t *msg_);
+        virtual int decode (msg_t *msg_);
+        virtual status_t status () const;
+
+    private:
+
+        enum state_t {
+            call_next_init,
+            send_next_token,
+            recv_next_token,
+            send_ready,
+            recv_ready,
+            connected
+        };
+
+        //  Human-readable principal name of the service we are connecting to
+        char * service_name;
+
+        //  Current FSM state
+        state_t state;
+
+        //  Points to either send_tok or recv_tok
+        //  during context initialization
+        gss_buffer_desc *token_ptr;
+
+        //  The desired underlying mechanism
+        gss_OID_set_desc mechs;
+
+        //  True iff client considers the server authenticated
+        bool security_context_established;
+
+        int initialize_context ();
+        int produce_next_token (msg_t *msg_);
+        int process_next_token (msg_t *msg_);
+    };
+
+}
+
+#endif
+
+#endif