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/*
* Copyright (C) 2001, 2002, 2003, 2004, 2005, 2007, 2010 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 3 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 General Public License
* along with this program. If not, see <http://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 <gnutls_num.h>
#include <gnutls_datum.h>
#include <gnutls_errors.h>
void
_gnutls_write_datum16 (opaque * dest, gnutls_datum_t dat)
{
_gnutls_write_uint16 (dat.size, dest);
if (dat.data != NULL)
memcpy (&dest[2], dat.data, dat.size);
}
void
_gnutls_write_datum24 (opaque * dest, gnutls_datum_t dat)
{
_gnutls_write_uint24 (dat.size, dest);
if (dat.data != NULL)
memcpy (&dest[3], dat.data, dat.size);
}
void
_gnutls_write_datum32 (opaque * dest, gnutls_datum_t dat)
{
_gnutls_write_uint32 (dat.size, dest);
if (dat.data != NULL)
memcpy (&dest[4], dat.data, dat.size);
}
void
_gnutls_write_datum8 (opaque * dest, gnutls_datum_t dat)
{
dest[0] = (uint8_t) dat.size;
if (dat.data != NULL)
memcpy (&dest[1], dat.data, dat.size);
}
int
_gnutls_set_datum_m (gnutls_datum_t * dat, const void *data,
size_t data_size, gnutls_alloc_function galloc_func)
{
if (data_size == 0 || data == NULL)
{
dat->data = NULL;
dat->size = 0;
return 0;
}
dat->data = galloc_func (data_size);
if (dat->data == NULL)
return GNUTLS_E_MEMORY_ERROR;
dat->size = data_size;
memcpy (dat->data, data, data_size);
return 0;
}
int
_gnutls_datum_append_m (gnutls_datum_t * dst, const void *data,
size_t data_size,
gnutls_realloc_function grealloc_func)
{
dst->data = grealloc_func (dst->data, data_size + dst->size);
if (dst->data == NULL)
return GNUTLS_E_MEMORY_ERROR;
memcpy (&dst->data[dst->size], data, data_size);
dst->size += data_size;
return 0;
}
void
_gnutls_free_datum_m (gnutls_datum_t * dat, gnutls_free_function gfree_func)
{
if (dat->data != NULL)
gfree_func (dat->data);
dat->data = NULL;
dat->size = 0;
}
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