/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */

/*
 * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

/*      Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T     */
/*        All Rights Reserved   */

/*
 * University Copyright- Copyright (c) 1982, 1986, 1988
 * The Regents of the University of California
 * All Rights Reserved
 *
 * University Acknowledgment- Portions of this document are derived from
 * software developed by the University of California, Berkeley, and its
 * contributors.
 */

#ifndef _OPENSOLARIS_SYS_BYTEORDER_H_
#define _OPENSOLARIS_SYS_BYTEORDER_H_

/* for htonl() */
#ifndef _KERNEL
#include <netinet/in.h>
#endif

/*
 * Macros to reverse byte order
 */
#define BSWAP_8(x)      ((x) & 0xff)
#define BSWAP_16(x)     ((BSWAP_8(x) << 8) | BSWAP_8((x) >> 8))
#define BSWAP_32(x)     ((BSWAP_16(x) << 16) | BSWAP_16((x) >> 16))
#define BSWAP_64(x)     ((BSWAP_32(x) << 32) | BSWAP_32((x) >> 32))

#define BMASK_8(x)      ((x) & 0xff)
#define BMASK_16(x)     ((x) & 0xffff)
#define BMASK_32(x)     ((x) & 0xffffffff)
#define BMASK_64(x)     (x)

/*
 * Macros to convert from a specific byte order to/from native byte order
 */
#if _BYTE_ORDER == _BIG_ENDIAN
#define BE_8(x)         BMASK_8(x)
#define BE_16(x)        BMASK_16(x)
#define BE_32(x)        BMASK_32(x)
#define BE_64(x)        BMASK_64(x)
#define LE_8(x)         BSWAP_8(x)
#define LE_16(x)        BSWAP_16(x)
#define LE_32(x)        BSWAP_32(x)
#define LE_64(x)        BSWAP_64(x)
#else
#define LE_8(x)         BMASK_8(x)
#define LE_16(x)        BMASK_16(x)
#define LE_32(x)        BMASK_32(x)
#define LE_64(x)        BMASK_64(x)
#define BE_8(x)         BSWAP_8(x)
#define BE_16(x)        BSWAP_16(x)
#define BE_32(x)        BSWAP_32(x)
#define BE_64(x)        BSWAP_64(x)
#endif

#if _BYTE_ORDER == _BIG_ENDIAN
#define htonll(x)       BMASK_64(x)
#define ntohll(x)       BMASK_64(x)
#else
#define htonll(x)       BSWAP_64(x)
#define ntohll(x)       BSWAP_64(x)
#endif

#define BE_IN32(xa)     htonl(*((uint32_t *)(void *)(xa)))

#endif /* _OPENSOLARIS_SYS_BYTEORDER_H_ */