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/*
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* Copyright (C) 2001-2012 Free Software Foundation, Inc.
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*
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* Author: Nikos Mavrogiannopoulos
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*
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* This file is part of GnuTLS.
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*
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* The GnuTLS is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 2.1 of
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* the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>
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*
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*/
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/* contains functions that make it easier to
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* write vectors of <size|data>. The destination size
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* should be preallocated (datum.size+(bits/8))
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*/
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#include "gnutls_int.h"
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#include <num.h>
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#include <datum.h>
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#include "errors.h"
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/* On error, @dat is not changed. */
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int
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_gnutls_set_datum(gnutls_datum_t * dat, const void *data, size_t data_size)
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{
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if (data_size == 0 || data == NULL) {
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dat->data = NULL;
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dat->size = 0;
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return 0;
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}
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unsigned char *m = gnutls_malloc(data_size);
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if (!m)
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return GNUTLS_E_MEMORY_ERROR;
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dat->data = m;
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dat->size = data_size;
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memcpy(dat->data, data, data_size);
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return 0;
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}
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/* ensures that the data set are null-terminated
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* The function always returns an allocated string in @dat on success.
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* On error, @dat is not changed.
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*/
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int
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_gnutls_set_strdatum(gnutls_datum_t * dat, const void *data, size_t data_size)
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{
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if (data == NULL)
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return gnutls_assert_val(GNUTLS_E_ILLEGAL_PARAMETER);
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unsigned char *m = gnutls_malloc(data_size + 1);
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if (!m)
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return GNUTLS_E_MEMORY_ERROR;
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dat->data = m;
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dat->size = data_size;
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if (data_size)
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memcpy(dat->data, data, data_size);
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dat->data[data_size] = 0;
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return 0;
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}
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