dist/tcpdump/bpf_dump.c

   1 /*      $NetBSD$        */
   2
   3 /*
   4  * Copyright (c) 1992, 1993, 1994, 1995, 1996
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that: (1) source code distributions
   9  * retain the above copyright notice and this paragraph in its entirety, (2)
  10  * distributions including binary code include the above copyright notice and
  11  * this paragraph in its entirety in the documentation or other materials
  12  * provided with the distribution, and (3) all advertising materials mentioning
  13  * features or use of this software display the following acknowledgement:
  14  * ``This product includes software developed by the University of California,
  15  * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
  16  * the University nor the names of its contributors may be used to endorse
  17  * or promote products derived from this software without specific prior
  18  * written permission.
  19  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
  20  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
  21  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  22  */
  23 #include <sys/cdefs.h>
  24 #ifndef lint
  25 #if 0
  26 static const char rcsid[] _U_ =
  27     "@(#) Header: /tcpdump/master/tcpdump/bpf_dump.c,v 1.16 2003/11/16 09:36:08 guy Exp (LBL)";
  28 #else
  29 __RCSID("$NetBSD: tcpdump2rcsid.ex,v 1.1 2001/06/25 20:09:58 itojun Exp $");
  30 #endif
  31 #endif
  32
  33 #ifdef HAVE_CONFIG_H
  34 #include "config.h"
  35 #endif
  36
  37 #include <tcpdump-stdinc.h>
  38
  39 #include <pcap.h>
  40 #include <stdio.h>
  41
  42 #include "interface.h"
  43
  44 void
  45 bpf_dump(struct bpf_program *p, int option)
  46 {
  47         struct bpf_insn *insn;
  48         int i;
  49         int n = p->bf_len;
  50
  51         insn = p->bf_insns;
  52         if (option > 2) {
  53                 printf("%d\n", n);
  54                 for (i = 0; i < n; ++insn, ++i) {
  55                         printf("%u %u %u %u\n", insn->code,
  56                                insn->jt, insn->jf, insn->k);
  57                 }
  58                 return ;
  59         }
  60         if (option > 1) {
  61                 for (i = 0; i < n; ++insn, ++i)
  62                         printf("{ 0x%x, %d, %d, 0x%08x },\n",
  63                                insn->code, insn->jt, insn->jf, insn->k);
  64                 return;
  65         }
  66         for (i = 0; i < n; ++insn, ++i) {
  67 #ifdef BDEBUG
  68                 extern int bids[];
  69                 printf(bids[i] > 0 ? "[%02d]" : " -- ", bids[i] - 1);
  70 #endif
  71                 puts(bpf_image(insn, i));
  72         }
  73 }