bpf_dump.c Source File

00001 /*
00002  * Copyright (c) 1992, 1993, 1994, 1995, 1996
00003  *  The Regents of the University of California.  All rights reserved.
00004  *
00005  * Redistribution and use in source and binary forms, with or without
00006  * modification, are permitted provided that: (1) source code distributions
00007  * retain the above copyright notice and this paragraph in its entirety, (2)
00008  * distributions including binary code include the above copyright notice and
00009  * this paragraph in its entirety in the documentation or other materials
00010  * provided with the distribution, and (3) all advertising materials mentioning
00011  * features or use of this software display the following acknowledgement:
00012  * ``This product includes software developed by the University of California,
00013  * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
00014  * the University nor the names of its contributors may be used to endorse
00015  * or promote products derived from this software without specific prior
00016  * written permission.
00017  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
00018  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
00019  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
00020  */
00021 #ifndef lint
00022 static const char rcsid[] =
00023     "@(#) $Header: /tcpdump/master/libpcap/bpf_dump.c,v 1.13 2002/03/24 23:21:51 guy Exp $ (LBL)";
00024 #endif
00025 
00026 #ifdef HAVE_CONFIG_H
00027 #include "config.h"
00028 #endif
00029 
00030 #include <pcap.h>
00031 #include <stdio.h>
00032 
00033 void
00034 bpf_dump(struct bpf_program *p, int option)
00035 {
00036     struct bpf_insn *insn;
00037     int i;
00038     int n = p->bf_len;
00039 
00040     insn = p->bf_insns;
00041     if (option > 2) {
00042         printf("%d\n", n);
00043         for (i = 0; i < n; ++insn, ++i) {
00044             printf("%u %u %u %u\n", insn->code,
00045                    insn->jt, insn->jf, insn->k);
00046         }
00047         return ;
00048     }
00049     if (option > 1) {
00050         for (i = 0; i < n; ++insn, ++i)
00051             printf("{ 0x%x, %d, %d, 0x%08x },\n",
00052                    insn->code, insn->jt, insn->jf, insn->k);
00053         return;
00054     }
00055     for (i = 0; i < n; ++insn, ++i) {
00056 #ifdef BDEBUG
00057         extern int bids[];
00058         printf(bids[i] > 0 ? "[%02d]" : " -- ", bids[i] - 1);
00059 #endif
00060         puts(bpf_image(insn, i));
00061     }
00062 }