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Annotation of Net2/net/slip.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Definitions that user level programs might need to know to interact
        !             3:  * with serial line IP (slip) lines.
        !             4: 
        !             5:  * @(#) $Header: /cvsroot/src/sys/net/slip.h,v 1.1 1993/03/25 00:30:55 cgd Exp $ (LBL)
        !             6:  *
        !             7:  * Copyright (c) 1990 Regents of the University of California.
        !             8:  * All rights reserved.
        !             9:  *
        !            10:  * Redistribution and use in source and binary forms are permitted
        !            11:  * provided that the above copyright notice and this paragraph are
        !            12:  * duplicated in all such forms and that any documentation,
        !            13:  * advertising materials, and other materials related to such
        !            14:  * distribution and use acknowledge that the software was developed
        !            15:  * by the University of California, Berkeley.  The name of the
        !            16:  * University may not be used to endorse or promote products derived
        !            17:  * from this software without specific prior written permission.
        !            18:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
        !            19:  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
        !            20:  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            21:  */
        !            22: 
        !            23: /*
        !            24:  * ioctl to get slip interface unit number (e.g., sl0, sl1, etc.)
        !            25:  * assigned to some terminal line with a slip module pushed on it.
        !            26:  */
        !            27: #ifdef __STDC__
        !            28: #define SLIOGUNIT _IOR('B', 1, int)
        !            29: #else
        !            30: #define SLIOGUNIT _IOR(B, 1, int)
        !            31: #endif
        !            32: 
        !            33: /*
        !            34:  * definitions of the pseudo- link-level header attached to slip
        !            35:  * packets grabbed by the packet filter (bpf) traffic monitor.
        !            36:  */
        !            37: #define SLIP_HDRLEN 16
        !            38: 
        !            39: #define SLX_DIR 0
        !            40: #define SLX_CHDR 1
        !            41: #define CHDR_LEN 15
        !            42: 
        !            43: #define SLIPDIR_IN 0
        !            44: #define SLIPDIR_OUT 1
        !            45: 

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