Method Authenticate

examples/server.java:195–304

(Socket inSocket,
            InputStream clientIn, 
            OutputStream clientOut)

    }

    public static int Authenticate(Socket inSocket,
            InputStream clientIn, 
            OutputStream clientOut)
    {
        int err = 0;
        long maj_status = 0;
        long[] min_status = {0};
        gss_ctx_id_t_desc context_tmp = GSS_C_NO_CONTEXT;

        byte[] inputTokenBuffer = null;
        gss_buffer_desc inputToken = new gss_buffer_desc();

        System.out.println("Authenticating...");

        /* The main authentication loop.  We need to loop reading "input
         * tokens" from the client, calling gss_accept_sec_context on the
         * "input tokens" and send the resulting "output tokens" back to
         * the client until we get GSS_S_COMPLETE or an error */

        maj_status = GSS_S_CONTINUE_NEEDED;
        while ( (err == 0) && 
                (maj_status != GSS_S_COMPLETE)) {

            /* Clean up old input buffer */
            if (inputTokenBuffer != null)
                inputTokenBuffer = null;

            inputTokenBuffer = Util.ReadToken(clientIn);

            if (inputTokenBuffer != null) {
                /* Set up input buffers for the next run through the loop */
                gsswrapper.setDescArray(inputToken, inputTokenBuffer);
                inputToken.setLength(inputTokenBuffer.length);

                System.out.println("inputToken.value = " 
                                   + inputToken.getValue());
                System.out.println("inputToken.length = " 
                                   + inputToken.getLength());
            } else {
                System.out.println("Got bad token from client, " +
                                   "check client for error description.");
                return -1;
            }

            if (inputTokenBuffer != null) {
                gss_buffer_desc outputToken = new gss_buffer_desc();
                outputToken.setValue(null);
                outputToken.setLength(0);

                /* gss_accept_sec_context takes the client request and 
                 * generates an appropriate reply. Passing
                 * GSS_C_NO_CREDENTIAL for the service principal causes
                 * the server to accept any service princiapl in the
                 * server's keytab. */

                System.out.println("Calling gss_accept_sec_context...");
                long[] req_flags = {0};
                long[] time_rec = {0};