xref: /freebsd/sys/netinet/in_systm.h (revision 380a989b3223d455375b4fae70fd0b9bdd43bafb)
1 /*
2  * Copyright (c) 1982, 1986, 1993
3  *	The Regents of the University of California.  All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. All advertising materials mentioning features or use of this software
14  *    must display the following acknowledgement:
15  *	This product includes software developed by the University of
16  *	California, Berkeley and its contributors.
17  * 4. Neither the name of the University nor the names of its contributors
18  *    may be used to endorse or promote products derived from this software
19  *    without specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31  * SUCH DAMAGE.
32  *
33  *	@(#)in_systm.h	8.1 (Berkeley) 6/10/93
34  * $Id: in_systm.h,v 1.6 1998/06/07 17:12:14 dfr Exp $
35  */
36 
37 #ifndef _NETINET_IN_SYSTM_H_
38 #define _NETINET_IN_SYSTM_H_
39 
40 /*
41  * Miscellaneous internetwork
42  * definitions for kernel.
43  */
44 
45 /*
46  * Network types.
47  *
48  * Internally the system keeps counters in the headers with the bytes
49  * swapped so that VAX instructions will work on them.  It reverses
50  * the bytes before transmission at each protocol level.  The n_ types
51  * represent the types with the bytes in ``high-ender'' order.
52  */
53 typedef u_int16_t n_short;		/* short as received from the net */
54 typedef u_int32_t n_long;		/* long as received from the net */
55 
56 typedef	u_int32_t n_time;		/* ms since 00:00 GMT, byte rev */
57 
58 #ifdef KERNEL
59 n_time	 iptime __P((void));
60 #endif
61 
62 #endif
63