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/*
* Copyright (C) 2001-2012 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/>
*
*/
/* contains functions that make it easier to
* write vectors of <size|data>. The destination size
* should be preallocated (datum.size+(bits/8))
*/
#include "gnutls_int.h"
#include <num.h>
#include <datum.h>
#include "errors.h"
/* On error, @dat is not changed. */
int
_gnutls_set_datum(gnutls_datum_t * dat, const void *data, size_t data_size)
{
if (data_size == 0 || data == NULL) {
dat->data = NULL;
dat->size = 0;
return 0;
}
unsigned char *m = gnutls_malloc(data_size);
if (!m)
return GNUTLS_E_MEMORY_ERROR;
dat->data = m;
dat->size = data_size;
memcpy(dat->data, data, data_size);
return 0;
}
/* ensures that the data set are null-terminated
* The function always returns an allocated string in @dat on success.
* On error, @dat is not changed.
*/
int
_gnutls_set_strdatum(gnutls_datum_t * dat, const void *data, size_t data_size)
{
if (data == NULL)
return gnutls_assert_val(GNUTLS_E_ILLEGAL_PARAMETER);
unsigned char *m = gnutls_malloc(data_size + 1);
if (!m)
return GNUTLS_E_MEMORY_ERROR;
dat->data = m;
dat->size = data_size;
if (data_size)
memcpy(dat->data, data, data_size);
dat->data[data_size] = 0;
return 0;
}
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