Home | History | Annotate | Download | only in libpcap
      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/libpcap/bpf_dump.c,v 1.14 2003/11/15 23:23:57 guy Exp $ (LBL)";
     24 #endif
     25 
     26 #ifdef HAVE_CONFIG_H
     27 #include "config.h"
     28 #endif
     29 
     30 #include <pcap.h>
     31 #include <stdio.h>
     32 
     33 void
     34 bpf_dump(struct bpf_program *p, int option)
     35 {
     36 	struct bpf_insn *insn;
     37 	int i;
     38 	int n = p->bf_len;
     39 
     40 	insn = p->bf_insns;
     41 	if (option > 2) {
     42 		printf("%d\n", n);
     43 		for (i = 0; i < n; ++insn, ++i) {
     44 			printf("%u %u %u %u\n", insn->code,
     45 			       insn->jt, insn->jf, insn->k);
     46 		}
     47 		return ;
     48 	}
     49 	if (option > 1) {
     50 		for (i = 0; i < n; ++insn, ++i)
     51 			printf("{ 0x%x, %d, %d, 0x%08x },\n",
     52 			       insn->code, insn->jt, insn->jf, insn->k);
     53 		return;
     54 	}
     55 	for (i = 0; i < n; ++insn, ++i) {
     56 #ifdef BDEBUG
     57 		extern int bids[];
     58 		printf(bids[i] > 0 ? "[%02d]" : " -- ", bids[i] - 1);
     59 #endif
     60 		puts(bpf_image(insn, i));
     61 	}
     62 }
     63