--- /dev/null
+/*
+ * Copyright (c) 1990, 1991, 1992, 1994, 1995, 1996
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that: (1) source code distributions
+ * retain the above copyright notice and this paragraph in its entirety, (2)
+ * distributions including binary code include the above copyright notice and
+ * this paragraph in its entirety in the documentation or other materials
+ * provided with the distribution, and (3) all advertising materials mentioning
+ * features or use of this software display the following acknowledgement:
+ * ``This product includes software developed by the University of California,
+ * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
+ * the University nor the names of its contributors may be used to endorse
+ * or promote products derived from this software without specific prior
+ * written permission.
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+#ifndef lint
+static const char rcsid[] =
+ "@(#) $Header: /usr/local/cvs/linux/tools/build/e100boot/libpcap-0.4/bpf_image.c,v 1.1 1999/08/26 10:05:20 johana Exp $ (LBL)";
+#endif
+
+#include <sys/types.h>
+#include <sys/time.h>
+
+#include <stdio.h>
+#include <string.h>
+
+#include "pcap-int.h"
+
+#include "gnuc.h"
+#ifdef HAVE_OS_PROTO_H
+#include "os-proto.h"
+#endif
+
+char *
+bpf_image(p, n)
+ struct bpf_insn *p;
+ int n;
+{
+ int v;
+ char *fmt, *op;
+ static char image[256];
+ char operand[64];
+
+ v = p->k;
+ switch (p->code) {
+
+ default:
+ op = "unimp";
+ fmt = "0x%x";
+ v = p->code;
+ break;
+
+ case BPF_RET|BPF_K:
+ op = "ret";
+ fmt = "#%d";
+ break;
+
+ case BPF_RET|BPF_A:
+ op = "ret";
+ fmt = "";
+ break;
+
+ case BPF_LD|BPF_W|BPF_ABS:
+ op = "ld";
+ fmt = "[%d]";
+ break;
+
+ case BPF_LD|BPF_H|BPF_ABS:
+ op = "ldh";
+ fmt = "[%d]";
+ break;
+
+ case BPF_LD|BPF_B|BPF_ABS:
+ op = "ldb";
+ fmt = "[%d]";
+ break;
+
+ case BPF_LD|BPF_W|BPF_LEN:
+ op = "ld";
+ fmt = "#pktlen";
+ break;
+
+ case BPF_LD|BPF_W|BPF_IND:
+ op = "ld";
+ fmt = "[x + %d]";
+ break;
+
+ case BPF_LD|BPF_H|BPF_IND:
+ op = "ldh";
+ fmt = "[x + %d]";
+ break;
+
+ case BPF_LD|BPF_B|BPF_IND:
+ op = "ldb";
+ fmt = "[x + %d]";
+ break;
+
+ case BPF_LD|BPF_IMM:
+ op = "ld";
+ fmt = "#0x%x";
+ break;
+
+ case BPF_LDX|BPF_IMM:
+ op = "ldx";
+ fmt = "#0x%x";
+ break;
+
+ case BPF_LDX|BPF_MSH|BPF_B:
+ op = "ldxb";
+ fmt = "4*([%d]&0xf)";
+ break;
+
+ case BPF_LD|BPF_MEM:
+ op = "ld";
+ fmt = "M[%d]";
+ break;
+
+ case BPF_LDX|BPF_MEM:
+ op = "ldx";
+ fmt = "M[%d]";
+ break;
+
+ case BPF_ST:
+ op = "st";
+ fmt = "M[%d]";
+ break;
+
+ case BPF_STX:
+ op = "stx";
+ fmt = "M[%d]";
+ break;
+
+ case BPF_JMP|BPF_JA:
+ op = "ja";
+ fmt = "%d";
+ v = n + 1 + p->k;
+ break;
+
+ case BPF_JMP|BPF_JGT|BPF_K:
+ op = "jgt";
+ fmt = "#0x%x";
+ break;
+
+ case BPF_JMP|BPF_JGE|BPF_K:
+ op = "jge";
+ fmt = "#0x%x";
+ break;
+
+ case BPF_JMP|BPF_JEQ|BPF_K:
+ op = "jeq";
+ fmt = "#0x%x";
+ break;
+
+ case BPF_JMP|BPF_JSET|BPF_K:
+ op = "jset";
+ fmt = "#0x%x";
+ break;
+
+ case BPF_JMP|BPF_JGT|BPF_X:
+ op = "jgt";
+ fmt = "x";
+ break;
+
+ case BPF_JMP|BPF_JGE|BPF_X:
+ op = "jge";
+ fmt = "x";
+ break;
+
+ case BPF_JMP|BPF_JEQ|BPF_X:
+ op = "jeq";
+ fmt = "x";
+ break;
+
+ case BPF_JMP|BPF_JSET|BPF_X:
+ op = "jset";
+ fmt = "x";
+ break;
+
+ case BPF_ALU|BPF_ADD|BPF_X:
+ op = "add";
+ fmt = "x";
+ break;
+
+ case BPF_ALU|BPF_SUB|BPF_X:
+ op = "sub";
+ fmt = "x";
+ break;
+
+ case BPF_ALU|BPF_MUL|BPF_X:
+ op = "mul";
+ fmt = "x";
+ break;
+
+ case BPF_ALU|BPF_DIV|BPF_X:
+ op = "div";
+ fmt = "x";
+ break;
+
+ case BPF_ALU|BPF_AND|BPF_X:
+ op = "and";
+ fmt = "x";
+ break;
+
+ case BPF_ALU|BPF_OR|BPF_X:
+ op = "or";
+ fmt = "x";
+ break;
+
+ case BPF_ALU|BPF_LSH|BPF_X:
+ op = "lsh";
+ fmt = "x";
+ break;
+
+ case BPF_ALU|BPF_RSH|BPF_X:
+ op = "rsh";
+ fmt = "x";
+ break;
+
+ case BPF_ALU|BPF_ADD|BPF_K:
+ op = "add";
+ fmt = "#%d";
+ break;
+
+ case BPF_ALU|BPF_SUB|BPF_K:
+ op = "sub";
+ fmt = "#%d";
+ break;
+
+ case BPF_ALU|BPF_MUL|BPF_K:
+ op = "mul";
+ fmt = "#%d";
+ break;
+
+ case BPF_ALU|BPF_DIV|BPF_K:
+ op = "div";
+ fmt = "#%d";
+ break;
+
+ case BPF_ALU|BPF_AND|BPF_K:
+ op = "and";
+ fmt = "#0x%x";
+ break;
+
+ case BPF_ALU|BPF_OR|BPF_K:
+ op = "or";
+ fmt = "#0x%x";
+ break;
+
+ case BPF_ALU|BPF_LSH|BPF_K:
+ op = "lsh";
+ fmt = "#%d";
+ break;
+
+ case BPF_ALU|BPF_RSH|BPF_K:
+ op = "rsh";
+ fmt = "#%d";
+ break;
+
+ case BPF_ALU|BPF_NEG:
+ op = "neg";
+ fmt = "";
+ break;
+
+ case BPF_MISC|BPF_TAX:
+ op = "tax";
+ fmt = "";
+ break;
+
+ case BPF_MISC|BPF_TXA:
+ op = "txa";
+ fmt = "";
+ break;
+ }
+ (void)sprintf(operand, fmt, v);
+ (void)sprintf(image,
+ (BPF_CLASS(p->code) == BPF_JMP &&
+ BPF_OP(p->code) != BPF_JA) ?
+ "(%03d) %-8s %-16s jt %d\tjf %d"
+ : "(%03d) %-8s %s",
+ n, op, operand, n + 1 + p->jt, n + 1 + p->jf);
+ return image;
+}
projects / openwrt / svn-archive / archive.git / blobdiff