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/*
* 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_key_datum(
gnutls_datum_t *dat)
{
if (dat->data != NULL) {
zeroize_key(dat->data, dat->size);
gnutls_free(dat->data);
}
dat->size = 0;
}
inline static ATTRIBUTE_NONNULL() gnutls_datum_t
_gnutls_steal_datum(gnutls_datum_t *src)
{
gnutls_datum_t dst = *src;
src->data = NULL;
src->size = 0;
return dst;
}
#endif /* GNUTLS_LIB_DATUM_H */
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