xnu-344.tar.gz

[apple/xnu.git] / bsd / netinet / in_systm.h

/*
 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
 *
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 * The contents of this file constitute Original Code as defined in and
 * are subject to the Apple Public Source License Version 1.1 (the
 * "License").  You may not use this file except in compliance with the
 * License.  Please obtain a copy of the License at
 * http://www.apple.com/publicsource and read it before using this file.
 * 
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/*
 * Copyright (c) 1982, 1986, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
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 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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 *
 *	@(#)in_systm.h	8.1 (Berkeley) 6/10/93
 * $FreeBSD: src/sys/netinet/in_systm.h,v 1.9 1999/12/29 04:41:00 peter Exp $
 */

#ifndef _NETINET_IN_SYSTM_H_
#define _NETINET_IN_SYSTM_H_
#include <sys/appleapiopts.h>

/*
 * Miscellaneous internetwork
 * definitions for kernel.
 */

/*
 * Network types.
 *
 * Internally the system keeps counters in the headers with the bytes
 * swapped so that VAX instructions will work on them.  It reverses
 * the bytes before transmission at each protocol level.  The n_ types
 * represent the types with the bytes in ``high-ender'' order.
 */
typedef u_int16_t n_short;		/* short as received from the net */
typedef u_int32_t n_long;		/* long as received from the net */

typedef	u_int32_t n_time;		/* ms since 00:00 GMT, byte rev */

#ifdef KERNEL
#ifdef __APPLE_API_PRIVATE
n_time	 iptime __P((void));
#endif /* __APPLE_API_PRIVATE */
#endif

#endif