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/* Copyright (C) 2018 CZ.NIC, z.s.p.o. <knot-dns@labs.nic.cz>
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 3 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, see <https://www.gnu.org/licenses/>.
*/
#include <assert.h>
#include <gnutls/gnutls.h>
#include <gnutls/crypto.h>
#include <stddef.h>
#include <stdint.h>
#include "libdnssec/error.h"
#include "libdnssec/random.h"
#include "libdnssec/shared/shared.h"
/* -- public API ----------------------------------------------------------- */
_public_
int dnssec_random_buffer(uint8_t *data, size_t size)
{
if (!data) {
return DNSSEC_EINVAL;
}
int result = gnutls_rnd(GNUTLS_RND_RANDOM, data, size);
if (result != 0) {
assert_unreachable();
return DNSSEC_ERROR;
}
return DNSSEC_EOK;
}
_public_
int dnssec_random_binary(dnssec_binary_t *binary)
{
if (!binary) {
return DNSSEC_EINVAL;
}
return dnssec_random_buffer(binary->data, binary->size);
}
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