1 /* $OpenBSD: bpf_dump.c,v 1.8 2009/10/27 23:59:55 deraadt Exp $ */
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
24 #include <sys/types.h>
25 #include <sys/time.h>
26
27 #include <pcap.h>
28 #include <stdio.h>
29
30 #include "interface.h"
31
32 extern void bpf_dump(struct bpf_program *, int);
33
34 void
bpf_dump(struct bpf_program * p,int option)35 bpf_dump(struct bpf_program *p, int option)
36 {
37 struct bpf_insn *insn;
38 int i;
39 int n = p->bf_len;
40
41 insn = p->bf_insns;
42 if (option > 2) {
43 printf("%d\n", n);
44 for (i = 0; i < n; ++insn, ++i) {
45 printf("%u %u %u %u\n", insn->code,
46 insn->jt, insn->jf, insn->k);
47 }
48 return ;
49 }
50 if (option > 1) {
51 for (i = 0; i < n; ++insn, ++i)
52 printf("{ 0x%x, %d, %d, 0x%08x },\n",
53 insn->code, insn->jt, insn->jf, insn->k);
54 return;
55 }
56 for (i = 0; i < n; ++insn, ++i) {
57 #ifdef BDEBUG
58 extern int bids[];
59 printf(bids[i] > 0 ? "[%02d]" : " -- ", bids[i] - 1);
60 #endif
61 puts(bpf_image(insn, i));
62 }
63 }
64