90 lines
2.5 KiB
C
90 lines
2.5 KiB
C
/* $NetBSD: print-vjc.c,v 1.2 2001/06/25 20:00:01 itojun Exp $ */
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/*
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* Copyright (c) 1990, 1991, 1993, 1994, 1995, 1996, 1997
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that: (1) source code distributions
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* retain the above copyright notice and this paragraph in its entirety, (2)
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* distributions including binary code include the above copyright notice and
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* this paragraph in its entirety in the documentation or other materials
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* provided with the distribution, and (3) all advertising materials mentioning
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* features or use of this software display the following acknowledgement:
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* ``This product includes software developed by the University of California,
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* Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
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* the University nor the names of its contributors may be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <sys/cdefs.h>
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#ifndef lint
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#if 0
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static const char rcsid[] =
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"@(#) Header: /tcpdump/master/tcpdump/print-vjc.c,v 1.9 2000/10/09 01:53:21 guy Exp (LBL)";
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#else
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__RCSID("$NetBSD: print-vjc.c,v 1.2 2001/06/25 20:00:01 itojun Exp $");
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#endif
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#endif
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#include <sys/param.h>
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#include <sys/time.h>
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#include <netinet/in.h>
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#include <ctype.h>
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#include <netdb.h>
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#include <pcap.h>
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#include <stdio.h>
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#include "interface.h"
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#include "addrtoname.h"
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#include "slcompress.h"
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#include "ppp.h"
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int
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vjc_print(register const char *bp, register u_int length, u_short proto)
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{
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int i;
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switch (bp[0] & 0xf0) {
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case TYPE_IP:
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if (eflag)
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printf("(vjc type=IP) ");
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return PPP_IP;
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case TYPE_UNCOMPRESSED_TCP:
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if (eflag)
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printf("(vjc type=raw TCP) ");
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return PPP_IP;
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case TYPE_COMPRESSED_TCP:
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if (eflag)
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printf("(vjc type=compressed TCP) ");
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for (i = 0; i < 8; i++) {
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if (bp[1] & (0x80 >> i))
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printf("%c", "?CI?SAWU"[i]);
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}
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if (bp[1])
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printf(" ");
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printf("C=0x%02x ", bp[2]);
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printf("sum=0x%04x ", *(u_short *)&bp[3]);
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return -1;
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case TYPE_ERROR:
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if (eflag)
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printf("(vjc type=error) ");
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return -1;
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default:
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if (eflag)
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printf("(vjc type=0x%02x) ", bp[0] & 0xf0);
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return -1;
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}
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}
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