/*

 * Copyright (C) 2000-2012 Free Software Foundation, Inc.

 *

 * Author: Nikos Mavrogiannopoulos

 *

 * This file is part of GnuTLS.

 *

 * The GnuTLS 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 program.  If not, see <https://www.gnu.org/licenses/>

 *

 */

#ifndef GNUTLS_LIB_DATUM_H

#define GNUTLS_LIB_DATUM_H

# include "gnutls_int.h"

/* This will copy the provided data in @dat. If the provided data are

 * NULL or zero-size @dat will be NULL as well.

 */

NODISCARD ATTRIBUTE_NONNULL((1))

int _gnutls_set_datum(gnutls_datum_t * dat, const void *data,

		      size_t data_size);

/* This will always return a non-NULL, and zero-terminated string in @dat.

 */

NODISCARD ATTRIBUTE_NONNULL((1))

int _gnutls_set_strdatum(gnutls_datum_t * dat, const void *data,

			 size_t data_size);

inline static

void _gnutls_free_datum(gnutls_datum_t * dat)

{

	if (dat != NULL) {

		gnutls_free(dat->data);

		dat->size = 0;

	}

}

inline static ATTRIBUTE_NONNULL()

void _gnutls_free_temp_key_datum(gnutls_datum_t * dat)

{

	if (dat->data != NULL) {

		zeroize_temp_key(dat->data, dat->size);

		gnutls_free(dat->data);

	}

	dat->size = 0;

}

inline static ATTRIBUTE_NONNULL()

void _gnutls_free_key_datum(gnutls_datum_t * dat)

{

	if (dat->data != NULL) {

		zeroize_key(dat->data, dat->size);

		gnutls_free(dat->data);

	}

	dat->size = 0;

}

#endif /* GNUTLS_LIB_DATUM_H */