2 * Copyright (c) 1990, 1991, 1992, 1994, 1995, 1996
3 * The Regents of the University of California. All rights reserved.
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
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.
23 static const char rcsid[] _U_ =
24 "@(#) $Header: /tcpdump/master/libpcap/bpf_image.c,v 1.28 2008-01-02 04:16:46 guy Exp $ (LBL)";
32 #include <pcap-stdinc.h>
39 #ifdef HAVE_SYS_BITYPES_H
40 #include <sys/bitypes.h>
42 #include <sys/types.h>
50 #ifdef HAVE_OS_PROTO_H
61 static char image[256];
83 case BPF_LD|BPF_W|BPF_ABS:
88 case BPF_LD|BPF_H|BPF_ABS:
93 case BPF_LD|BPF_B|BPF_ABS:
98 case BPF_LD|BPF_W|BPF_LEN:
103 case BPF_LD|BPF_W|BPF_IND:
108 case BPF_LD|BPF_H|BPF_IND:
113 case BPF_LD|BPF_B|BPF_IND:
123 case BPF_LDX|BPF_IMM:
128 case BPF_LDX|BPF_MSH|BPF_B:
130 fmt = "4*([%d]&0xf)";
138 case BPF_LDX|BPF_MEM:
159 case BPF_JMP|BPF_JGT|BPF_K:
164 case BPF_JMP|BPF_JGE|BPF_K:
169 case BPF_JMP|BPF_JEQ|BPF_K:
174 case BPF_JMP|BPF_JSET|BPF_K:
179 case BPF_JMP|BPF_JGT|BPF_X:
184 case BPF_JMP|BPF_JGE|BPF_X:
189 case BPF_JMP|BPF_JEQ|BPF_X:
194 case BPF_JMP|BPF_JSET|BPF_X:
199 case BPF_ALU|BPF_ADD|BPF_X:
204 case BPF_ALU|BPF_SUB|BPF_X:
209 case BPF_ALU|BPF_MUL|BPF_X:
214 case BPF_ALU|BPF_DIV|BPF_X:
219 case BPF_ALU|BPF_AND|BPF_X:
224 case BPF_ALU|BPF_OR|BPF_X:
229 case BPF_ALU|BPF_LSH|BPF_X:
234 case BPF_ALU|BPF_RSH|BPF_X:
239 case BPF_ALU|BPF_ADD|BPF_K:
244 case BPF_ALU|BPF_SUB|BPF_K:
249 case BPF_ALU|BPF_MUL|BPF_K:
254 case BPF_ALU|BPF_DIV|BPF_K:
259 case BPF_ALU|BPF_AND|BPF_K:
264 case BPF_ALU|BPF_OR|BPF_K:
269 case BPF_ALU|BPF_LSH|BPF_K:
274 case BPF_ALU|BPF_RSH|BPF_K:
279 case BPF_ALU|BPF_NEG:
284 case BPF_MISC|BPF_TAX:
289 case BPF_MISC|BPF_TXA:
294 (void)snprintf(operand, sizeof operand, fmt, v);
295 (void)snprintf(image, sizeof image,
296 (BPF_CLASS(p->code) == BPF_JMP &&
297 BPF_OP(p->code) != BPF_JA) ?
298 "(%03d) %-8s %-16s jt %d\tjf %d"
300 n, op, operand, n + 1 + p->jt, n + 1 + p->jf);