The Tcpdump Group git mirrors - tcpdump/blob - print-vjc.c

   1 /*
   2  * Copyright (c) 1990, 1991, 1993, 1994, 1995, 1996, 1997
   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: (1) source code distributions
   7  * retain the above copyright notice and this paragraph in its entirety, (2)
   8  * distributions including binary code include the above copyright notice and
   9  * this paragraph in its entirety in the documentation or other materials
  10  * provided with the distribution, and (3) all advertising materials mentioning
  11  * features or use of this software display the following acknowledgement:
  12  * ``This product includes software developed by the University of California,
  13  * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
  14  * the University nor the names of its contributors may be used to endorse
  15  * or promote products derived from this software without specific prior
  16  * written permission.
  17  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
  18  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
  19  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  20  */
  21
  22 #if defined(__bsdi__)
  23
  24 #ifndef lint
  25 static const char rcsid[] =
  26     "@(#) print-vjc.c,v 1.1.2.2 1998/08/31 05:44:21 onoe Exp (LBL)";
  27 #endif
  28
  29 #include <sys/param.h>
  30 #include <sys/time.h>
  31 #include <sys/socket.h>
  32 #include <sys/file.h>
  33 #include <sys/ioctl.h>
  34
  35 #if __STDC__
  36 struct mbuf;
  37 struct rtentry;
  38 #endif
  39 #include <net/if.h>
  40
  41 #include <netinet/in.h>
  42 #include <netinet/in_systm.h>
  43 #include <netinet/ip.h>
  44 #include <netinet/if_ether.h>
  45
  46 #include <ctype.h>
  47 #include <netdb.h>
  48 #include <pcap.h>
  49 #include <stdio.h>
  50
  51 #if defined(__NetBSD__)
  52 #include <sys/mbuf.h>
  53 #include <net/ppp_defs.h>
  54 #endif
  55
  56 #if defined(__bsdi__) || defined(__NetBSD__)
  57 #include <net/if_ppp.h>
  58 #include <net/slcompress.h>
  59 #endif
  60
  61 #include "interface.h"
  62 #include "addrtoname.h"
  63
  64 int
  65 vjc_print(register const char *bp, register u_int length, u_short proto)
  66 {
  67         int i;
  68
  69         switch (bp[0] & 0xf0) {
  70         case TYPE_IP:
  71                 if (eflag)
  72                         printf("(vjc type=IP) ");
  73                 return PPP_IP;
  74         case TYPE_UNCOMPRESSED_TCP:
  75                 if (eflag)
  76                         printf("(vjc type=raw TCP) ");
  77                 return PPP_IP;
  78         case TYPE_COMPRESSED_TCP:
  79                 if (eflag)
  80                         printf("(vjc type=compressed TCP) ");
  81                 for (i = 0; i < 8; i++) {
  82                         if (bp[1] & (0x80 >> i))
  83                                 printf("%c", "?CI?SAWU"[i]);
  84                 }
  85                 if (bp[1])
  86                         printf(" ");
  87                 printf("C=0x%02x ", bp[2]);
  88                 printf("sum=0x%04x ", *(u_short *)&bp[3]);
  89                 return -1;
  90         case TYPE_ERROR:
  91                 if (eflag)
  92                         printf("(vjc type=error) ");
  93                 return -1;
  94         default:
  95                 if (eflag)
  96                         printf("(vjc type=0x%02x) ", bp[0] & 0xf0);
  97                 return -1;
  98         }
  99 }
 100 #endif /* defined(__bsdi__) || defined(__NetBSD__) */