/**
 * \file version.h
 *
 * \brief Run-time version information
 */
/*
 *  Copyright The Mbed TLS Contributors
 *  SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
 *
 *  This file is provided under the Apache License 2.0, or the
 *  GNU General Public License v2.0 or later.
 *
 *  **********
 *  Apache License 2.0:
 *
 *  Licensed under the Apache License, Version 2.0 (the "License"); you may
 *  not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 *  **********
 *
 *  **********
 *  GNU General Public License v2.0 or later:
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program 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 General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License along
 *  with this program; if not, write to the Free Software Foundation, Inc.,
 *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 *  **********
 */
/*
 * This set of compile-time defines and run-time variables can be used to
 * determine the version number of the mbed TLS library used.
 */
#ifndef MBEDTLS_VERSION_H
#define MBEDTLS_VERSION_H

#if !defined(MBEDTLS_CONFIG_FILE)
#include "config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif

/**
 * The version number x.y.z is split into three parts.
 * Major, Minor, Patchlevel
 */
#define MBEDTLS_VERSION_MAJOR  2
#define MBEDTLS_VERSION_MINOR  16
#define MBEDTLS_VERSION_PATCH  8

/**
 * The single version number has the following structure:
 *    MMNNPP00
 *    Major version | Minor version | Patch version
 */
#define MBEDTLS_VERSION_NUMBER         0x02100800
#define MBEDTLS_VERSION_STRING         "2.16.8"
#define MBEDTLS_VERSION_STRING_FULL    "mbed TLS 2.16.8"

#if defined(MBEDTLS_VERSION_C)

#ifdef __cplusplus
extern "C" {
#endif

/**
 * Get the version number.
 *
 * \return          The constructed version number in the format
 *                  MMNNPP00 (Major, Minor, Patch).
 */
unsigned int mbedtls_version_get_number( void );

/**
 * Get the version string ("x.y.z").
 *
 * \param string    The string that will receive the value.
 *                  (Should be at least 9 bytes in size)
 */
void mbedtls_version_get_string( char *string );

/**
 * Get the full version string ("mbed TLS x.y.z").
 *
 * \param string    The string that will receive the value. The mbed TLS version
 *                  string will use 18 bytes AT MOST including a terminating
 *                  null byte.
 *                  (So the buffer should be at least 18 bytes to receive this
 *                  version string).
 */
void mbedtls_version_get_string_full( char *string );

/**
 * \brief           Check if support for a feature was compiled into this
 *                  mbed TLS binary. This allows you to see at runtime if the
 *                  library was for instance compiled with or without
 *                  Multi-threading support.
 *
 * \note            only checks against defines in the sections "System
 *                  support", "mbed TLS modules" and "mbed TLS feature
 *                  support" in config.h
 *
 * \param feature   The string for the define to check (e.g. "MBEDTLS_AES_C")
 *
 * \return          0 if the feature is present,
 *                  -1 if the feature is not present and
 *                  -2 if support for feature checking as a whole was not
 *                  compiled in.
 */
int mbedtls_version_check_feature( const char *feature );

#ifdef __cplusplus
}
#endif

#endif /* MBEDTLS_VERSION_C */

#endif /* version.h */
