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   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
  22 #include <config.h>
  23
  24 #include "netdissect-stdinc.h"
  25
  26 #include <stdio.h>
  27
  28 #include "netdissect.h"
  29 #include "interface.h"
  30
  31 void
  32 bpf_dump(const struct bpf_program *p, int option)
  33 {
  34         const struct bpf_insn *insn;
  35         int i;
  36         int n = p->bf_len;
  37
  38         insn = p->bf_insns;
  39         if (option > 2) {
  40                 printf("%d\n", n);
  41                 for (i = 0; i < n; ++insn, ++i) {
  42                         printf("%u %u %u %u\n", insn->code,
  43                                insn->jt, insn->jf, insn->k);
  44                 }
  45                 return ;
  46         }
  47         if (option > 1) {
  48                 for (i = 0; i < n; ++insn, ++i)
  49                         printf("{ 0x%x, %d, %d, 0x%08x },\n",
  50                                insn->code, insn->jt, insn->jf, insn->k);
  51                 return;
  52         }
  53         for (i = 0; i < n; ++insn, ++i) {
  54                 puts(bpf_image(insn, i));
  55         }
  56 }