1 /* $NetBSD: bpf_dump.c,v 1.4 2018/09/03 15:26:43 christos 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/cdefs.h> 25 __RCSID("$NetBSD: bpf_dump.c,v 1.4 2018/09/03 15:26:43 christos Exp $"); 26 27 #ifdef HAVE_CONFIG_H 28 #include <config.h> 29 #endif 30 31 #include <pcap.h> 32 #include <stdio.h> 33 34 #include "optimize.h" 35 36 void 37 bpf_dump(const struct bpf_program *p, int option) 38 { 39 const struct bpf_insn *insn; 40 int i; 41 int n = p->bf_len; 42 43 insn = p->bf_insns; 44 if (option > 2) { 45 printf("%d\n", n); 46 for (i = 0; i < n; ++insn, ++i) { 47 printf("%u %u %u %u\n", insn->code, 48 insn->jt, insn->jf, insn->k); 49 } 50 return ; 51 } 52 if (option > 1) { 53 for (i = 0; i < n; ++insn, ++i) 54 printf("{ 0x%x, %d, %d, 0x%08x },\n", 55 insn->code, insn->jt, insn->jf, insn->k); 56 return; 57 } 58 for (i = 0; i < n; ++insn, ++i) { 59 #ifdef BDEBUG 60 if (i < NBIDS && bids[i] > 0) 61 printf("[%02d]", bids[i] - 1); 62 else 63 printf(" -- "); 64 #endif 65 puts(bpf_image(insn, i)); 66 } 67 } 68