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asterisk/include/asterisk/endian.h

74 lines
1.6 KiB
C

/*
* Asterisk -- An open source telephony toolkit.
*
* Copyright (C) 1999 - 2005, Digium, Inc.
*
* Mark Spencer <markster@digium.com>
*
* See http://www.asterisk.org for more information about
* the Asterisk project. Please do not directly contact
* any of the maintainers of this project for assistance;
* the project provides a web site, mailing lists and IRC
* channels for your use.
*
* This program is free software, distributed under the terms of
* the GNU General Public License Version 2. See the LICENSE file
* at the top of the source tree.
*/
/*! \file
* \brief Asterisk architecture endianess compatibility definitions
*/
#ifndef _ASTERISK_ENDIAN_H
#define _ASTERISK_ENDIAN_H
/*
* Autodetect system endianess
*/
#ifndef __BYTE_ORDER
#ifdef __linux__
#include <endian.h>
#elif defined(__OpenBSD__) || defined(__FreeBSD__) || defined(__NetBSD__) || defined(__APPLE__)
#if defined(__OpenBSD__)
#include "asterisk/compat.h"
#endif
#include <machine/endian.h>
#define __BYTE_ORDER BYTE_ORDER
#define __LITTLE_ENDIAN LITTLE_ENDIAN
#define __BIG_ENDIAN BIG_ENDIAN
#else
#ifndef __LITTLE_ENDIAN
#define __LITTLE_ENDIAN 1234
#endif
#ifndef __BIG_ENDIAN
#define __BIG_ENDIAN 4321
#endif
#ifdef __LITTLE_ENDIAN__
#define __BYTE_ORDER __LITTLE_ENDIAN
#endif /* __LITTLE_ENDIAN */
#if defined(i386) || defined(__i386__)
#define __BYTE_ORDER __LITTLE_ENDIAN
#endif /* defined i386 */
#if defined(sun) && defined(unix) && defined(sparc)
#define __BYTE_ORDER __BIG_ENDIAN
#endif /* sun unix sparc */
#endif /* linux */
#endif /* __BYTE_ORDER */
#ifndef __BYTE_ORDER
#error Need to know endianess
#endif /* __BYTE_ORDER */
#endif /* _ASTERISK_ENDIAN_H */