Fawkes API Fawkes Development Version
ntoh64.h
1
2/***************************************************************************
3 * ntoh64.h - Network <-> Host Byte Order conversion for uint64_t
4 *
5 * Created: Sat Mar 21 12:48:22 2009
6 * Copyright 2009 Tim Niemueller [www.niemueller.de]
7 *
8 ****************************************************************************/
9
10/* This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version. A runtime exception applies to
14 * this software (see LICENSE.GPL_WRE file mentioned below for details).
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU Library General Public License for more details.
20 *
21 * Read the full text in the LICENSE.GPL_WRE file in the doc directory.
22 */
23
24#ifndef _NETCOMM_UTILS_NTOH64_H_
25#define _NETCOMM_UTILS_NTOH64_H_
26
27#include <arpa/inet.h>
28
29#include <stdint.h>
30
31#define ntoh64_(x) \
32 (((uint64_t)(ntohl((uint32_t)(((uint64_t)x << 32) >> 32))) << 32) \
33 | (uint32_t)ntohl(((uint32_t)((uint64_t)x >> 32))))
34
35#define hton64_(x) ntohll(x)
36
37#ifdef __OPTIMIZE__
38# define ntoh64(x) ntoh64_(x)
39# define hton64(x) ntoh64_(x)
40#else
41
42inline uint64_t
43ntoh64(uint64_t x)
44{
45 return ntoh64_(x);
46}
47
48inline uint64_t
49hton64(uint64_t x)
50{
51 return ntoh64_(x);
52}
53
54#endif // __OPTIMIZE__
55
56#endif // NETCOMM_UTILS_NTOH64__