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/*
 * Copyright (C) 2001, 2004, 2005, 2007 Free Software Foundation
 *
 * Author: Nikos Mavrogiannopoulos
 *
 * This file is part of GNUTLS.
 *
 * The GNUTLS library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This library 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 library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
 * USA
 *
 */

#include "gnutls_int.h"

#ifdef ENABLE_ANON

#include "gnutls_errors.h"
#include "auth_anon.h"
#include "gnutls_auth_int.h"
#include "gnutls_dh.h"
#include "gnutls_num.h"
#include "gnutls_mpi.h"

static const int anon_dummy;

/**
  * MHD__gnutls_anon_free_server_credentials - Used to free an allocated MHD_gtls_anon_server_credentials_t structure
  * @sc: is an #MHD_gtls_anon_server_credentials_t structure.
  *
  * This structure is complex enough to manipulate directly thus this
  * helper function is provided in order to free (deallocate) it.
  **/
void
MHD__gnutls_anon_free_server_credentials (MHD_gtls_anon_server_credentials_t
                                          sc)
{

  MHD_gnutls_free (sc);
}

/**
  * MHD__gnutls_anon_allocate_server_credentials - Used to allocate an MHD_gtls_anon_server_credentials_t structure
  * @sc: is a pointer to an #MHD_gtls_anon_server_credentials_t structure.
  *
  * This structure is complex enough to manipulate directly thus this
  * helper function is provided in order to allocate it.
  *
  * Returns: %GNUTLS_E_SUCCESS on success, or an error code.
  **/
int
  MHD__gnutls_anon_allocate_server_credentials
  (MHD_gtls_anon_server_credentials_t * sc)
{
  *sc = MHD_gnutls_calloc (1, sizeof (mhd_anon_server_credentials_st));
  if (*sc == NULL)
    return GNUTLS_E_MEMORY_ERROR;

  return 0;
}


/**
  * MHD__gnutls_anon_free_client_credentials - Used to free an allocated MHD_gtls_anon_client_credentials_t structure
  * @sc: is an #MHD_gtls_anon_client_credentials_t structure.
  *
  * This structure is complex enough to manipulate directly thus this
  * helper function is provided in order to free (deallocate) it.
  **/
void
MHD__gnutls_anon_free_client_credentials (MHD_gtls_anon_client_credentials_t
                                          sc)
{
}

/**
 * MHD__gnutls_anon_allocate_client_credentials - Used to allocate a credentials structure
 * @sc: is a pointer to an #MHD_gtls_anon_client_credentials_t structure.
 *
 * This structure is complex enough to manipulate directly thus
 * this helper function is provided in order to allocate it.
 *
 * Returns: %GNUTLS_E_SUCCESS on success, or an error code.
 **/
int
  MHD__gnutls_anon_allocate_client_credentials
  (MHD_gtls_anon_client_credentials_t * sc)
{
  /* anon_dummy is only there for *sc not to be null.
   * it is not used at all;
   */
  *sc = (void *) &anon_dummy;

  return 0;
}

/**
  * MHD__gnutls_anon_set_server_dh_params - This function will set the DH parameters for a server to use
  * @res: is a MHD_gtls_anon_server_credentials_t structure
  * @dh_params: is a structure that holds diffie hellman parameters.
  *
  * This function will set the diffie hellman parameters for an
  * anonymous server to use.  These parameters will be used in
  * Anonymous Diffie Hellman cipher suites.
  **/
void
MHD__gnutls_anon_set_server_dh_params (MHD_gtls_anon_server_credentials_t res,
                                       MHD_gtls_dh_params_t dh_params)
{
  res->dh_params = dh_params;
}

/**
  * MHD__gnutls_anon_set_server_params_function - This function will set the DH parameters callback
  * @res: is a MHD_gtls_cert_credentials_t structure
  * @func: is the function to be called
  *
  * This function will set a callback in order for the server to get
  * the diffie hellman parameters for anonymous authentication.  The
  * callback should return zero on success.
  **/
void
MHD__gnutls_anon_set_server_params_function
  (MHD_gtls_anon_server_credentials_t res, MHD_gnutls_params_function * func)
{
  res->params_func = func;
}

#endif