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 1.26 2003/11/15 23:23:57 guy Exp $ (LBL)";
36 #ifdef HAVE_OS_PROTO_H
47 static char image[256];
69 case BPF_LD|BPF_W|BPF_ABS:
74 case BPF_LD|BPF_H|BPF_ABS:
79 case BPF_LD|BPF_B|BPF_ABS:
84 case BPF_LD|BPF_W|BPF_LEN:
89 case BPF_LD|BPF_W|BPF_IND:
94 case BPF_LD|BPF_H|BPF_IND:
99 case BPF_LD|BPF_B|BPF_IND:
109 case BPF_LDX|BPF_IMM:
114 case BPF_LDX|BPF_MSH|BPF_B:
116 fmt = "4*([%d]&0xf)";
124 case BPF_LDX|BPF_MEM:
145 case BPF_JMP|BPF_JGT|BPF_K:
150 case BPF_JMP|BPF_JGE|BPF_K:
155 case BPF_JMP|BPF_JEQ|BPF_K:
160 case BPF_JMP|BPF_JSET|BPF_K:
165 case BPF_JMP|BPF_JGT|BPF_X:
170 case BPF_JMP|BPF_JGE|BPF_X:
175 case BPF_JMP|BPF_JEQ|BPF_X:
180 case BPF_JMP|BPF_JSET|BPF_X:
185 case BPF_ALU|BPF_ADD|BPF_X:
190 case BPF_ALU|BPF_SUB|BPF_X:
195 case BPF_ALU|BPF_MUL|BPF_X:
200 case BPF_ALU|BPF_DIV|BPF_X:
205 case BPF_ALU|BPF_AND|BPF_X:
210 case BPF_ALU|BPF_OR|BPF_X:
215 case BPF_ALU|BPF_LSH|BPF_X:
220 case BPF_ALU|BPF_RSH|BPF_X:
225 case BPF_ALU|BPF_ADD|BPF_K:
230 case BPF_ALU|BPF_SUB|BPF_K:
235 case BPF_ALU|BPF_MUL|BPF_K:
240 case BPF_ALU|BPF_DIV|BPF_K:
245 case BPF_ALU|BPF_AND|BPF_K:
250 case BPF_ALU|BPF_OR|BPF_K:
255 case BPF_ALU|BPF_LSH|BPF_K:
260 case BPF_ALU|BPF_RSH|BPF_K:
265 case BPF_ALU|BPF_NEG:
270 case BPF_MISC|BPF_TAX:
275 case BPF_MISC|BPF_TXA:
280 (void)snprintf(operand, sizeof operand, fmt, v);
281 (void)snprintf(image, sizeof image,
282 (BPF_CLASS(p->code) == BPF_JMP &&
283 BPF_OP(p->code) != BPF_JA) ?
284 "(%03d) %-8s %-16s jt %d\tjf %d"
286 n, op, operand, n + 1 + p->jt, n + 1 + p->jf);