contrib/tcpdump/bpf_dump.c

   1 /*
   2  * Copyright (c) 1992, 1993, 1994, 1995, 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 #ifndef lint
  22 static const char rcsid[] _U_ =
  23     "@(#) $Header: /tcpdump/master/tcpdump/bpf_dump.c,v 1.16.4.1 2008-02-14 20:54:53 guy Exp $ (LBL)";
  24 #endif
  25
  26 #ifdef HAVE_CONFIG_H
  27 #include "config.h"
  28 #endif
  29
  30 #include <tcpdump-stdinc.h>
  31
  32 #include <pcap.h>
  33 #include <stdio.h>
  34
  35 #include "interface.h"
  36
  37 void
  38 bpf_dump(const struct bpf_program *p, int option)
  39 {
  40         struct bpf_insn *insn;
  41         int i;
  42         int n = p->bf_len;
  43
  44         insn = p->bf_insns;
  45         if (option > 2) {
  46                 printf("%d\n", n);
  47                 for (i = 0; i < n; ++insn, ++i) {
  48                         printf("%u %u %u %u\n", insn->code,
  49                                insn->jt, insn->jf, insn->k);
  50                 }
  51                 return ;
  52         }
  53         if (option > 1) {
  54                 for (i = 0; i < n; ++insn, ++i)
  55                         printf("{ 0x%x, %d, %d, 0x%08x },\n",
  56                                insn->code, insn->jt, insn->jf, insn->k);
  57                 return;
  58         }
  59         for (i = 0; i < n; ++insn, ++i) {
  60 #ifdef BDEBUG
  61                 extern int bids[];
  62                 printf(bids[i] > 0 ? "[%02d]" : " -- ", bids[i] - 1);
  63 #endif
  64                 puts(bpf_image(insn, i));
  65         }
  66 }