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.
27 #include <pcap-stdinc.h>
34 #ifdef HAVE_SYS_BITYPES_H
35 #include <sys/bitypes.h>
37 #include <sys/types.h>
45 #ifdef HAVE_OS_PROTO_H
51 const struct bpf_insn *p;
56 static char image[256];
78 case BPF_LD|BPF_W|BPF_ABS:
83 case BPF_LD|BPF_H|BPF_ABS:
88 case BPF_LD|BPF_B|BPF_ABS:
93 case BPF_LD|BPF_W|BPF_LEN:
98 case BPF_LD|BPF_W|BPF_IND:
103 case BPF_LD|BPF_H|BPF_IND:
108 case BPF_LD|BPF_B|BPF_IND:
118 case BPF_LDX|BPF_IMM:
123 case BPF_LDX|BPF_MSH|BPF_B:
125 fmt = "4*([%d]&0xf)";
133 case BPF_LDX|BPF_MEM:
154 case BPF_JMP|BPF_JGT|BPF_K:
159 case BPF_JMP|BPF_JGE|BPF_K:
164 case BPF_JMP|BPF_JEQ|BPF_K:
169 case BPF_JMP|BPF_JSET|BPF_K:
174 case BPF_JMP|BPF_JGT|BPF_X:
179 case BPF_JMP|BPF_JGE|BPF_X:
184 case BPF_JMP|BPF_JEQ|BPF_X:
189 case BPF_JMP|BPF_JSET|BPF_X:
194 case BPF_ALU|BPF_ADD|BPF_X:
199 case BPF_ALU|BPF_SUB|BPF_X:
204 case BPF_ALU|BPF_MUL|BPF_X:
209 case BPF_ALU|BPF_DIV|BPF_X:
214 case BPF_ALU|BPF_MOD|BPF_X:
219 case BPF_ALU|BPF_AND|BPF_X:
224 case BPF_ALU|BPF_OR|BPF_X:
229 case BPF_ALU|BPF_XOR|BPF_X:
234 case BPF_ALU|BPF_LSH|BPF_X:
239 case BPF_ALU|BPF_RSH|BPF_X:
244 case BPF_ALU|BPF_ADD|BPF_K:
249 case BPF_ALU|BPF_SUB|BPF_K:
254 case BPF_ALU|BPF_MUL|BPF_K:
259 case BPF_ALU|BPF_DIV|BPF_K:
264 case BPF_ALU|BPF_MOD|BPF_K:
269 case BPF_ALU|BPF_AND|BPF_K:
274 case BPF_ALU|BPF_OR|BPF_K:
279 case BPF_ALU|BPF_XOR|BPF_K:
284 case BPF_ALU|BPF_LSH|BPF_K:
289 case BPF_ALU|BPF_RSH|BPF_K:
294 case BPF_ALU|BPF_NEG:
299 case BPF_MISC|BPF_TAX:
304 case BPF_MISC|BPF_TXA:
309 (void)snprintf(operand, sizeof operand, fmt, v);
310 if (BPF_CLASS(p->code) == BPF_JMP && BPF_OP(p->code) != BPF_JA) {
311 (void)snprintf(image, sizeof image,
312 "(%03d) %-8s %-16s jt %d\tjf %d",
313 n, op, operand, n + 1 + p->jt, n + 1 + p->jf);
315 (void)snprintf(image, sizeof image,