Made all header files idempotent and moved incorrect common data from
[unix-history] / sys / net / slip.h
CommitLineData
15637ed4 1/*
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2 * Copyright (c) 1990 Regents of the University of California.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms are permitted
6 * provided that the above copyright notice and this paragraph are
7 * duplicated in all such forms and that any documentation,
8 * advertising materials, and other materials related to such
9 * distribution and use acknowledge that the software was developed
10 * by the University of California, Berkeley. The name of the
11 * University may not be used to endorse or promote products derived
12 * from this software without specific prior written permission.
13 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
14 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
15 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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16 *
17 * from: unknown
8ace4366 18 * $Id: slip.h,v 1.2 1993/10/16 17:43:44 rgrimes Exp $
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19 */
20
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21#ifndef _NET_SLIP_H_
22#define _NET_SLIP_H_ 1
23
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24/*
25 * Definitions that user level programs might need to know to interact
26 * with serial line IP (slip) lines.
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27 */
28
29/*
30 * ioctl to get slip interface unit number (e.g., sl0, sl1, etc.)
31 * assigned to some terminal line with a slip module pushed on it.
32 */
33#ifdef __STDC__
34#define SLIOGUNIT _IOR('B', 1, int)
35#else
36#define SLIOGUNIT _IOR(B, 1, int)
37#endif
38
39/*
40 * definitions of the pseudo- link-level header attached to slip
41 * packets grabbed by the packet filter (bpf) traffic monitor.
42 */
43#define SLIP_HDRLEN 16
44
45#define SLX_DIR 0
46#define SLX_CHDR 1
47#define CHDR_LEN 15
48
49#define SLIPDIR_IN 0
50#define SLIPDIR_OUT 1
51
8ace4366 52#endif /* _NET_SLIP_H_ */