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

   1 /*
   2  * Copyright (c) 1996
   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 #ifndef lint
  23 static const char rcsid[] =
  24     "@(#) $Header: /tcpdump/master/tcpdump/print-raw.c,v 1.38 2002-12-18 08:53:23 guy Exp $ (LBL)";
  25 #endif
  26
  27 #ifdef HAVE_CONFIG_H
  28 #include "config.h"
  29 #endif
  30
  31 #include <tcpdump-stdinc.h>
  32
  33 #include <pcap.h>
  34 #include <stdio.h>
  35 #include <string.h>
  36
  37 #include "addrtoname.h"
  38 #include "interface.h"
  39
  40 /*
  41  * The DLT_RAW packet has no header. It contains a raw IP packet.
  42  */
  43
  44 void
  45 raw_if_print(u_char *user _U_, const struct pcap_pkthdr *h, const u_char *p)
  46 {
  47         u_int length = h->len;
  48         u_int caplen = h->caplen;
  49
  50         ++infodelay;
  51         ts_print(&h->ts);
  52
  53         /*
  54          * Some printers want to check that they're not walking off the
  55          * end of the packet.
  56          * Rather than pass it all the way down, we set this global.
  57          */
  58         snapend = p + caplen;
  59
  60         if (eflag)
  61                 printf("ip: ");
  62
  63         ipN_print(p, length);
  64
  65         if (xflag)
  66                 default_print(p, caplen);
  67         putchar('\n');
  68         --infodelay;
  69         if (infoprint)
  70                 info(0);
  71 }