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diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/gssapi_mechanism_base.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/gssapi_mechanism_base.hpp
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+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/gssapi_mechanism_base.hpp
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+/*
+    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_MECHANISM_BASE_HPP_INCLUDED__
+#define __ZMQ_GSSAPI_MECHANISM_BASE_HPP_INCLUDED__
+
+#include "platform.hpp"
+
+#ifdef HAVE_LIBGSSAPI_KRB5
+
+#ifndef ZMQ_HAVE_FREEBSD
+#include <gssapi/gssapi_generic.h>
+#endif
+#include <gssapi/gssapi_krb5.h>
+
+#include "mechanism.hpp"
+#include "options.hpp"
+
+namespace zmq
+{
+
+    class msg_t;
+
+    /// Commonalities between clients and servers are captured here.
+    /// For example, clients and servers both need to produce and
+    /// process context-level GSSAPI tokens (via INITIATE commands)
+    /// and per-message GSSAPI tokens (via MESSAGE commands).
+    class gssapi_mechanism_base_t:
+        public mechanism_t
+    {
+    public:
+        gssapi_mechanism_base_t (const options_t &options_);
+        virtual ~gssapi_mechanism_base_t () = 0;
+
+    protected:
+        //  Produce a context-level GSSAPI token (INITIATE command)
+        //  during security context initialization.
+        int produce_initiate (msg_t *msg_, void *data_, size_t data_len_);
+
+        //  Process a context-level GSSAPI token (INITIATE command)
+        //  during security context initialization.
+        int process_initiate (msg_t *msg_, void **data_, size_t &data_len_);
+
+        // Produce a metadata ready msg (READY) to conclude handshake
+        int produce_ready (msg_t *msg_);
+
+        // Process a metadata ready msg (READY)
+        int process_ready (msg_t *msg_);
+
+        //  Encode a per-message GSSAPI token (MESSAGE command) using
+        //  the established security context.
+        int encode_message (msg_t *msg_);
+
+        //  Decode a per-message GSSAPI token (MESSAGE command) using
+        //  the  established security context.
+        int decode_message (msg_t *msg_);
+
+        //  Acquire security context credentials from the
+        //  underlying mechanism.
+        static int acquire_credentials (char * principal_name_,
+                                        gss_cred_id_t * cred_);
+
+    protected:
+        //  Opaque GSSAPI token for outgoing data
+        gss_buffer_desc send_tok;
+
+        //  Opaque GSSAPI token for incoming data
+        gss_buffer_desc recv_tok;
+
+        //  Opaque GSSAPI representation of principal
+        gss_name_t target_name;
+
+        //  Human-readable principal name
+        char * principal_name;
+
+        //  Status code returned by GSSAPI functions
+        OM_uint32 maj_stat;
+
+        //  Status code returned by the underlying mechanism
+        OM_uint32 min_stat;
+
+        //  Status code returned by the underlying mechanism
+        //  during context initialization
+        OM_uint32 init_sec_min_stat;
+
+        //  Flags returned by GSSAPI (ignored)
+        OM_uint32 ret_flags;
+
+        //  Flags returned by GSSAPI (ignored)
+        OM_uint32 gss_flags;
+
+        //  Credentials used to establish security context
+        gss_cred_id_t cred;
+
+        //  Opaque GSSAPI representation of the security context
+        gss_ctx_id_t context;
+
+        //  If true, use gss to encrypt messages. If false, only utilize gss for auth.
+        bool do_encryption;
+    };
+
+}
+
+#endif
+
+#endif