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/*
* Copyright (C) 2001,2002,2003 Nikos Mavroyanopoulos
* Copyright (C) 2004 Free Software Foundation
*
* This file is part of GNUTLS.
*
* The GNUTLS library 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 library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
/* 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);
memcpy(&dest[2], dat.data, dat.size);
}
void _gnutls_write_datum24(opaque * dest, gnutls_datum_t dat)
{
_gnutls_write_uint24(dat.size, dest);
memcpy(&dest[3], dat.data, dat.size);
}
void _gnutls_write_datum32(opaque * dest, gnutls_datum_t dat)
{
_gnutls_write_uint32(dat.size, dest);
memcpy(&dest[4], dat.data, dat.size);
}
void _gnutls_write_datum8(opaque * dest, gnutls_datum_t dat)
{
dest[0] = (uint8) dat.size;
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 && dat->size != 0)
gfree_func(dat->data);
dat->data = NULL;
dat->size = 0;
}
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