Commit c8b8c2ea authored by Niels Möller's avatar Niels Möller

(_nettle_write_le32): New file and function.

Rev: nettle/write-le32.c:1.1
parent 9a755b72
/* write-le32.c */
/* nettle, low-level cryptographics library
*
* Copyright (C) 2001, 2011 Niels Möller
*
* The nettle 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.
*
* The nettle 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 the nettle library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
* MA 02111-1307, USA.
*/
#if HAVE_CONFIG_H
# include "config.h"
#endif
#include <stdlib.h>
#include "nettle-write.h"
#include "macros.h"
void
_nettle_write_le32(unsigned length, uint8_t *dst,
uint32_t *src)
{
unsigned i;
unsigned words;
unsigned leftover;
words = length / 4;
leftover = length % 4;
for (i = 0; i < words; i++, dst += 4)
LE_WRITE_UINT32(dst, src[i]);
if (leftover)
{
uint32_t word;
word = src[i];
do
{
*dst++ = word & 0xff;
word >>= 8;
}
while (--leftover);
}
}
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