Grab libpcap sources out of contrib_libpcap module

27 files changed, 23 insertions, 9081 deletions

diff --git a/lib/libpcap/Makefile b/lib/libpcap/Makefile
index a3009c7..85509b1 100644
--- a/lib/libpcap/Makefile
+++ b/lib/libpcap/Makefile
@@ -2,30 +2,40 @@
 # $Id: Makefile,v 1.7 1996/06/02 17:09:03 phk Exp $
 
 LIB=    pcap
-
-SRCS=	\
-        pcap-bpf.c \
-        pcap.c inet.c gencode.c optimize.c nametoaddr.c etherent.c savefile.c \
-        bpf_filter.c bpf_image.c \
+SRCS=	pcap-bpf.c \
+        pcap.c inet.c gencode.c optimize.c nametoaddr.c \
+	etherent.c savefile.c bpf_filter.c bpf_image.c \
         grammar.y scanner.l
+MAN3=	pcap.3
 
 CLEANFILES+= lex.yy.c tokdefs.h grammar.c scanner.c
-# CFLAGS+=-Wall -I. -I${.CURDIR} -DFDDI -Dyylval=pcap_lval
-CFLAGS+=-DFDDI -I. -I${.CURDIR} -DETHER_SERVICE
-MAN3=	pcap.3
+
+DEFS=	-DHAVE_SYS_IOCCOM_H=1 -DHAVE_SYS_SOCKIO_H=1 \
+	-DHAVE_ETHER_HOSTTON=1 -DHAVE_STRERROR=1 \
+	-DHAVE_SOCKADDR_SA_LEN=1 -DLBL_ALIGN=1 
+
+CFLAGS+=-Wall -I. -I${.CURDIR} -Dyylval=pcap_lval -Dlint ${DEFS}
+
+#
+# Magic to grab sources out of src/contrib
+#
+DISTDIR?=${.CURDIR}/../../contrib/libpcap
+.PATH:	${DISTDIR}
+.PATH:	${DISTDIR}/bpf/net
+CFLAGS+=-I${DISTDIR} -I${DISTDIR}/lbl
 
 beforeinstall:
-	-cmp -s ${.CURDIR}/pcap.h ${DESTDIR}/usr/include/pcap.h || \
+	-cmp -s ${DISTDIR}/pcap.h ${DESTDIR}/usr/include/pcap.h || \
 	  ( $(INSTALL) -c -o ${BINOWN} -g ${BINGRP} -m 444 \
-	    ${.CURDIR}/pcap.h ${DESTDIR}/usr/include; )
-	-cmp -s ${.CURDIR}/pcap-namedb.h ${DESTDIR}/usr/include/pcap-namedb.h || \
+	    ${DISTDIR}/pcap.h ${DESTDIR}/usr/include; )
+	-cmp -s ${DISTDIR}/pcap-namedb.h ${DESTDIR}/usr/include/pcap-namedb.h || \
 	  ( $(INSTALL) -c -o ${BINOWN} -g ${BINGRP} -m 444 \
-	    ${.CURDIR}/pcap-namedb.h ${DESTDIR}/usr/include; )
+	    ${DISTDIR}/pcap-namedb.h ${DESTDIR}/usr/include; )
+
 
 scanner.o: tokdefs.h
 
 tokdefs.h: grammar.c
 	mv -f y.tab.h tokdefs.h
 
-
 .include <bsd.lib.mk>
diff --git a/lib/libpcap/bpf_filter.c b/lib/libpcap/bpf_filter.c
deleted file mode 100644
index e755b59..0000000
--- a/lib/libpcap/bpf_filter.c
+++ /dev/null
@@ -1,550 +0,0 @@
-/*-
- * Copyright (c) 1990, 1991, 1992, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * This code is derived from the Stanford/CMU enet packet filter,
- * (net/enet.c) distributed as part of 4.3BSD, and code contributed
- * to Berkeley by Steven McCanne and Van Jacobson both of Lawrence
- * Berkeley Laboratory.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. 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 BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)bpf.c	7.5 (Berkeley) 7/15/91
- *
- * static char rcsid[] =
- * "$Header: /home/ncvs/src/lib/libpcap/bpf_filter.c,v 1.1.1.1 1995/01/20 04:13:02 jkh Exp $";
- */
-#if !(defined(lint) || defined(KERNEL))
-static char rcsid[] =
-    "@(#) $Header: /home/ncvs/src/lib/libpcap/bpf_filter.c,v 1.1.1.1 1995/01/20 04:13:02 jkh Exp $ (LBL)";
-#endif
-
-#include <sys/param.h>
-#include <sys/types.h>
-#include <sys/time.h>
-#include <net/bpf.h>
-
-#if	defined(__alpha)
-typedef	int	int32;
-typedef	u_int	u_int32;
-#else
-typedef	long	int32;
-typedef	u_long	u_int32;
-#endif
-
-#ifdef sun
-#include <netinet/in.h>
-#endif
-
-#if defined(sparc) || defined(mips) || defined(ibm032) || defined(__alpha)
-#define BPF_ALIGN
-#endif
-
-#ifndef BPF_ALIGN
-#define EXTRACT_SHORT(p)	((u_short)ntohs(*(u_short *)p))
-#define EXTRACT_LONG(p)		(ntohl(*(u_int32 *)p))
-#else
-#define EXTRACT_SHORT(p)\
-	((u_short)\
-		((u_short)*((u_char *)p+0)<<8|\
-		 (u_short)*((u_char *)p+1)<<0))
-#define EXTRACT_LONG(p)\
-		((u_int32)*((u_char *)p+0)<<24|\
-		 (u_int32)*((u_char *)p+1)<<16|\
-		 (u_int32)*((u_char *)p+2)<<8|\
-		 (u_int32)*((u_char *)p+3)<<0)
-#endif
-
-#ifdef KERNEL
-#include <sys/mbuf.h>
-#define MINDEX(m, k) \
-{ \
-	register int len = m->m_len; \
- \
-	while (k >= len) { \
-		k -= len; \
-		m = m->m_next; \
-		if (m == 0) \
-			return 0; \
-		len = m->m_len; \
-	} \
-}
-
-static int
-m_xword(m, k, err)
-	register struct mbuf *m;
-	register int k, *err;
-{
-	register int len;
-	register u_char *cp, *np;
-	register struct mbuf *m0;
-
-	len = m->m_len;
-	while (k >= len) {
-		k -= len;
-		m = m->m_next;
-		if (m == 0)
-			goto bad;
-		len = m->m_len;
-	}
-	cp = mtod(m, u_char *) + k;
-	if (len - k >= 4) {
-		*err = 0;
-		return EXTRACT_LONG(cp);
-	}
-	m0 = m->m_next;
-	if (m0 == 0 || m0->m_len + len - k < 4)
-		goto bad;
-	*err = 0;
-	np = mtod(m0, u_char *);
-	switch (len - k) {
-
-	case 1:
-		return (cp[k] << 24) | (np[0] << 16) | (np[1] << 8) | np[2];
-
-	case 2:
-		return (cp[k] << 24) | (cp[k + 1] << 16) | (np[0] << 8) |
-			np[1];
-
-	default:
-		return (cp[k] << 24) | (cp[k + 1] << 16) | (cp[k + 2] << 8) |
-			np[0];
-	}
-    bad:
-	*err = 1;
-	return 0;
-}
-
-static int
-m_xhalf(m, k, err)
-	register struct mbuf *m;
-	register int k, *err;
-{
-	register int len;
-	register u_char *cp;
-	register struct mbuf *m0;
-
-	len = m->m_len;
-	while (k >= len) {
-		k -= len;
-		m = m->m_next;
-		if (m == 0)
-			goto bad;
-		len = m->m_len;
-	}
-	cp = mtod(m, u_char *) + k;
-	if (len - k >= 2) {
-		*err = 0;
-		return EXTRACT_SHORT(cp);
-	}
-	m0 = m->m_next;
-	if (m0 == 0)
-		goto bad;
-	*err = 0;
-	return (cp[k] << 8) | mtod(m0, u_char *)[0];
- bad:
-	*err = 1;
-	return 0;
-}
-#endif
-
-/*
- * Execute the filter program starting at pc on the packet p
- * wirelen is the length of the original packet
- * buflen is the amount of data present
- */
-u_int
-bpf_filter(pc, p, wirelen, buflen)
-	register struct bpf_insn *pc;
-	register u_char *p;
-	u_int wirelen;
-	register u_int buflen;
-{
-	register u_int32 A, X;
-	register int k;
-	int32 mem[BPF_MEMWORDS];
-
-	if (pc == 0)
-		/*
-		 * No filter means accept all.
-		 */
-		return (u_int)-1;
-#ifdef lint
-	A = 0;
-	X = 0;
-#endif
-	--pc;
-	while (1) {
-		++pc;
-		switch (pc->code) {
-
-		default:
-#ifdef KERNEL
-			return 0;
-#else
-			abort();
-#endif
-		case BPF_RET|BPF_K:
-			return (u_int)pc->k;
-
-		case BPF_RET|BPF_A:
-			return (u_int)A;
-
-		case BPF_LD|BPF_W|BPF_ABS:
-			k = pc->k;
-			if (k + sizeof(int32) > buflen) {
-#ifdef KERNEL
-				int merr;
-
-				if (buflen != 0)
-					return 0;
-				A = m_xword((struct mbuf *)p, k, &merr);
-				if (merr != 0)
-					return 0;
-				continue;
-#else
-				return 0;
-#endif
-			}
-			A = EXTRACT_LONG(&p[k]);
-			continue;
-
-		case BPF_LD|BPF_H|BPF_ABS:
-			k = pc->k;
-			if (k + sizeof(short) > buflen) {
-#ifdef KERNEL
-				int merr;
-
-				if (buflen != 0)
-					return 0;
-				A = m_xhalf((struct mbuf *)p, k, &merr);
-				continue;
-#else
-				return 0;
-#endif
-			}
-			A = EXTRACT_SHORT(&p[k]);
-			continue;
-
-		case BPF_LD|BPF_B|BPF_ABS:
-			k = pc->k;
-			if (k >= buflen) {
-#ifdef KERNEL
-				register struct mbuf *m;
-
-				if (buflen != 0)
-					return 0;
-				m = (struct mbuf *)p;
-				MINDEX(m, k);
-				A = mtod(m, u_char *)[k];
-				continue;
-#else
-				return 0;
-#endif
-			}
-			A = p[k];
-			continue;
-
-		case BPF_LD|BPF_W|BPF_LEN:
-			A = wirelen;
-			continue;
-
-		case BPF_LDX|BPF_W|BPF_LEN:
-			X = wirelen;
-			continue;
-
-		case BPF_LD|BPF_W|BPF_IND:
-			k = X + pc->k;
-			if (k + sizeof(int32) > buflen) {
-#ifdef KERNEL
-				int merr;
-
-				if (buflen != 0)
-					return 0;
-				A = m_xword((struct mbuf *)p, k, &merr);
-				if (merr != 0)
-					return 0;
-				continue;
-#else
-				return 0;
-#endif
-			}
-			A = EXTRACT_LONG(&p[k]);
-			continue;
-
-		case BPF_LD|BPF_H|BPF_IND:
-			k = X + pc->k;
-			if (k + sizeof(short) > buflen) {
-#ifdef KERNEL
-				int merr;
-
-				if (buflen != 0)
-					return 0;
-				A = m_xhalf((struct mbuf *)p, k, &merr);
-				if (merr != 0)
-					return 0;
-				continue;
-#else
-				return 0;
-#endif
-			}
-			A = EXTRACT_SHORT(&p[k]);
-			continue;
-
-		case BPF_LD|BPF_B|BPF_IND:
-			k = X + pc->k;
-			if (k >= buflen) {
-#ifdef KERNEL
-				register struct mbuf *m;
-
-				if (buflen != 0)
-					return 0;
-				m = (struct mbuf *)p;
-				MINDEX(m, k);
-				A = mtod(m, char *)[k];
-				continue;
-#else
-				return 0;
-#endif
-			}
-			A = p[k];
-			continue;
-
-		case BPF_LDX|BPF_MSH|BPF_B:
-			k = pc->k;
-			if (k >= buflen) {
-#ifdef KERNEL
-				register struct mbuf *m;
-
-				if (buflen != 0)
-					return 0;
-				m = (struct mbuf *)p;
-				MINDEX(m, k);
-				X = (mtod(m, char *)[k] & 0xf) << 2;
-				continue;
-#else
-				return 0;
-#endif
-			}
-			X = (p[pc->k] & 0xf) << 2;
-			continue;
-
-		case BPF_LD|BPF_IMM:
-			A = pc->k;
-			continue;
-
-		case BPF_LDX|BPF_IMM:
-			X = pc->k;
-			continue;
-
-		case BPF_LD|BPF_MEM:
-			A = mem[pc->k];
-			continue;
-
-		case BPF_LDX|BPF_MEM:
-			X = mem[pc->k];
-			continue;
-
-		case BPF_ST:
-			mem[pc->k] = A;
-			continue;
-
-		case BPF_STX:
-			mem[pc->k] = X;
-			continue;
-
-		case BPF_JMP|BPF_JA:
-			pc += pc->k;
-			continue;
-
-		case BPF_JMP|BPF_JGT|BPF_K:
-			pc += (A > pc->k) ? pc->jt : pc->jf;
-			continue;
-
-		case BPF_JMP|BPF_JGE|BPF_K:
-			pc += (A >= pc->k) ? pc->jt : pc->jf;
-			continue;
-
-		case BPF_JMP|BPF_JEQ|BPF_K:
-			pc += (A == pc->k) ? pc->jt : pc->jf;
-			continue;
-
-		case BPF_JMP|BPF_JSET|BPF_K:
-			pc += (A & pc->k) ? pc->jt : pc->jf;
-			continue;
-
-		case BPF_JMP|BPF_JGT|BPF_X:
-			pc += (A > X) ? pc->jt : pc->jf;
-			continue;
-
-		case BPF_JMP|BPF_JGE|BPF_X:
-			pc += (A >= X) ? pc->jt : pc->jf;
-			continue;
-
-		case BPF_JMP|BPF_JEQ|BPF_X:
-			pc += (A == X) ? pc->jt : pc->jf;
-			continue;
-
-		case BPF_JMP|BPF_JSET|BPF_X:
-			pc += (A & X) ? pc->jt : pc->jf;
-			continue;
-
-		case BPF_ALU|BPF_ADD|BPF_X:
-			A += X;
-			continue;
-
-		case BPF_ALU|BPF_SUB|BPF_X:
-			A -= X;
-			continue;
-
-		case BPF_ALU|BPF_MUL|BPF_X:
-			A *= X;
-			continue;
-
-		case BPF_ALU|BPF_DIV|BPF_X:
-			if (X == 0)
-				return 0;
-			A /= X;
-			continue;
-
-		case BPF_ALU|BPF_AND|BPF_X:
-			A &= X;
-			continue;
-
-		case BPF_ALU|BPF_OR|BPF_X:
-			A |= X;
-			continue;
-
-		case BPF_ALU|BPF_LSH|BPF_X:
-			A <<= X;
-			continue;
-
-		case BPF_ALU|BPF_RSH|BPF_X:
-			A >>= X;
-			continue;
-
-		case BPF_ALU|BPF_ADD|BPF_K:
-			A += pc->k;
-			continue;
-
-		case BPF_ALU|BPF_SUB|BPF_K:
-			A -= pc->k;
-			continue;
-
-		case BPF_ALU|BPF_MUL|BPF_K:
-			A *= pc->k;
-			continue;
-
-		case BPF_ALU|BPF_DIV|BPF_K:
-			A /= pc->k;
-			continue;
-
-		case BPF_ALU|BPF_AND|BPF_K:
-			A &= pc->k;
-			continue;
-
-		case BPF_ALU|BPF_OR|BPF_K:
-			A |= pc->k;
-			continue;
-
-		case BPF_ALU|BPF_LSH|BPF_K:
-			A <<= pc->k;
-			continue;
-
-		case BPF_ALU|BPF_RSH|BPF_K:
-			A >>= pc->k;
-			continue;
-
-		case BPF_ALU|BPF_NEG:
-			A = -A;
-			continue;
-
-		case BPF_MISC|BPF_TAX:
-			X = A;
-			continue;
-
-		case BPF_MISC|BPF_TXA:
-			A = X;
-			continue;
-		}
-	}
-}
-
-#ifdef KERNEL
-/*
- * Return true if the 'fcode' is a valid filter program.
- * The constraints are that each jump be forward and to a valid
- * code.  The code must terminate with either an accept or reject.
- * 'valid' is an array for use by the routine (it must be at least
- * 'len' bytes long).
- *
- * The kernel needs to be able to verify an application's filter code.
- * Otherwise, a bogus program could easily crash the system.
- */
-int
-bpf_validate(f, len)
-	struct bpf_insn *f;
-	int len;
-{
-	register int i;
-	register struct bpf_insn *p;
-
-	for (i = 0; i < len; ++i) {
-		/*
-		 * Check that that jumps are forward, and within
-		 * the code block.
-		 */
-		p = &f[i];
-		if (BPF_CLASS(p->code) == BPF_JMP) {
-			register int from = i + 1;
-
-			if (BPF_OP(p->code) == BPF_JA) {
-				if (from + p->k >= len)
-					return 0;
-			}
-			else if (from + p->jt >= len || from + p->jf >= len)
-				return 0;
-		}
-		/*
-		 * Check that memory operations use valid addresses.
-		 */
-		if ((BPF_CLASS(p->code) == BPF_ST ||
-		     (BPF_CLASS(p->code) == BPF_LD &&
-		      (p->code & 0xe0) == BPF_MEM)) &&
-		    (p->k >= BPF_MEMWORDS || p->k < 0))
-			return 0;
-		/*
-		 * Check for constant division by 0.
-		 */
-		if (p->code == (BPF_ALU|BPF_DIV|BPF_K) && p->k == 0)
-			return 0;
-	}
-	return BPF_CLASS(f[len - 1].code) == BPF_RET;
-}
-#endif
diff --git a/lib/libpcap/bpf_image.c b/lib/libpcap/bpf_image.c
deleted file mode 100644
index e86fa85..0000000
--- a/lib/libpcap/bpf_image.c
+++ /dev/null
@@ -1,284 +0,0 @@
-/*
- * Copyright (c) 1990, 1991, 1992, 1994
- *	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 char rcsid[] =
-	"@(#) $Header: bpf_image.c,v 1.12 94/01/31 03:22:34 leres Exp $ (LBL)";
-#endif
-
-#include <sys/types.h>
-#include <sys/time.h>
-
-#include <net/bpf.h>
-
-#include <pcap.h>
-#include <stdio.h>
-#include <string.h>
-
-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 + 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 = "#%d";
-		break;
-
-	case BPF_ALU|BPF_OR|BPF_K:
-		op = "or";
-		fmt = "#%d";
-		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;
-}
diff --git a/lib/libpcap/etherent.c b/lib/libpcap/etherent.c
deleted file mode 100644
index 7045f3d..0000000
--- a/lib/libpcap/etherent.c
+++ /dev/null
@@ -1,148 +0,0 @@
-/*
- * Copyright (c) 1990, 1993, 1994
- *	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 char rcsid[] =
-    "@(#) $Header: etherent.c,v 1.8 94/06/20 19:07:50 leres Exp $ (LBL)";
-#endif
-
-#include <sys/types.h>
-
-#include <ctype.h>
-#include <pcap.h>
-#include <pcap-namedb.h>
-#include <stdio.h>
-
-#ifndef __GNUC__
-#define inline
-#endif
-
-static inline int xdtoi(int);
-static inline int skip_space(FILE *);
-static inline int skip_line(FILE *);
-
-/* Hex digit to integer. */
-static inline int
-xdtoi(c)
-	register int c;
-{
-	if (isdigit(c))
-		return c - '0';
-	else if (islower(c))
-		return c - 'a' + 10;
-	else
-		return c - 'A' + 10;
-}
-
-static inline int
-skip_space(f)
-	FILE *f;
-{
-	int c;
-
-	do {
-		c = getc(f);
-	} while (isspace(c) && c != '\n');
-
-	return c;
-}
-
-static inline int
-skip_line(f)
-	FILE *f;
-{
-	int c;
-
-	do
-		c = getc(f);
-	while (c != '\n' && c != EOF);
-
-	return c;
-}
-
-struct pcap_etherent *
-pcap_next_etherent(FILE *fp)
-{
-	register int c, d, i;
-	char *bp;
-	static struct pcap_etherent e;
-	static int nline = 1;
- top:
-	while (nline) {
-		/* Find addr */
-		c = skip_space(fp);
-		if (c == '\n')
-			continue;
-		/* If this is a comment, or first thing on line
-		   cannot be ethernet address, skip the line. */
-		else if (!isxdigit(c))
-			c = skip_line(fp);
-		else {
-			/* must be the start of an address */
-			for (i = 0; i < 6; i += 1) {
-				d = xdtoi(c);
-				c = getc(fp);
-				if (c != ':') {
-					d <<= 4;
-					d |= xdtoi(c);
-					c = getc(fp);
-				}
-				e.addr[i] = d;
-				if (c != ':')
-					break;
-				c = getc(fp);
-			}
-			nline = 0;
-		}
-		if (c == EOF)
-			return 0;
-	}
-
-	/* If we started a new line, 'c' holds the char past the ether addr,
-	   which we assume is white space.  If we are continuing a line,
-	   'c' is garbage.  In either case, we can throw it away. */
-
-	c = skip_space(fp);
-	if (c == '\n') {
-		nline = 1;
-		goto top;
-	}
-	else if (c == '#') {
-		(void)skip_line(fp);
-		nline = 1;
-		goto top;
-	}
-	else if (c == EOF)
-		return 0;
-
-	/* Must be a name. */
-	bp = e.name;
-	/* Use 'd' to prevent buffer overflow. */
-	d = sizeof(e.name) - 1;
-	do {
-		*bp++ = c;
-		c = getc(fp);
-	} while (!isspace(c) && c != EOF && --d > 0);
-	*bp = '\0';
-	if (c == '\n')
-		nline = 1;
-
-	return &e;
-}
diff --git a/lib/libpcap/ethertype.h b/lib/libpcap/ethertype.h
deleted file mode 100644
index 37f6920..0000000
--- a/lib/libpcap/ethertype.h
+++ /dev/null
@@ -1,74 +0,0 @@
-/*
- * Copyright (c) 1993, 1994
- *	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.
- *
- * @(#) $Header: ethertype.h,v 1.2 94/06/14 20:03:27 leres Exp $ (LBL)
- */
-
-/* Map between Ethernet protocol types and names */
-
-/* Add other Ethernet packet types here */
-#ifndef	ETHERTYPE_SPRITE
-#define	ETHERTYPE_SPRITE	0x0500
-#endif
-#ifndef	ETHERTYPE_MOPDL
-#define	ETHERTYPE_MOPDL		0x6001
-#endif
-#ifndef	ETHERTYPE_MOPRC
-#define	ETHERTYPE_MOPRC		0x6002
-#endif
-#ifndef	ETHERTYPE_DN
-#define	ETHERTYPE_DN		0x6003
-#endif
-#ifndef	ETHERTYPE_LAT
-#define	ETHERTYPE_LAT		0x6004
-#endif
-#ifndef	ETHERTYPE_LANBRIDGE
-#define	ETHERTYPE_LANBRIDGE	0x8038
-#endif
-#ifndef	ETHERTYPE_DECDNS
-#define	ETHERTYPE_DECDNS	0x803c
-#endif
-#ifndef	ETHERTYPE_DECDTS
-#define	ETHERTYPE_DECDTS	0x803e
-#endif
-#ifndef	ETHERTYPE_VEXP
-#define	ETHERTYPE_VEXP		0x805b
-#endif
-#ifndef	ETHERTYPE_VPROD
-#define	ETHERTYPE_VPROD		0x805c
-#endif
-#ifndef	ETHERTYPE_LOOPBACK
-#define	ETHERTYPE_LOOPBACK	0x9000
-#endif
-
-#ifndef ETHERTYPE_ATALK
-#define ETHERTYPE_ATALK		0x809b /* XXX */
-#endif
-#ifndef ETHERTYPE_AARP
-#define ETHERTYPE_AARP		0x80f3
-#endif
-#ifndef ETHERTYPE_NS
-#define ETHERTYPE_NS		0x0600
-#endif
-
-#ifndef ETHERTYPE_REVARP
-#define ETHERTYPE_REVARP	0x8035
-#endif
-
diff --git a/lib/libpcap/gencode.c b/lib/libpcap/gencode.c
deleted file mode 100644
index 3f237c1..0000000
--- a/lib/libpcap/gencode.c
+++ /dev/null
@@ -1,1764 +0,0 @@
-/*
- * Copyright (c) 1990, 1991, 1992, 1993, 1994
- *	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 char rcsid[] =
-    "@(#) $Header: /home/ncvs/src/lib/libpcap/gencode.c,v 1.1.1.1 1995/01/20 04:13:04 jkh Exp $ (LBL)";
-#endif
-
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <sys/time.h>
-
-#include <net/if.h>
-#include <net/bpf.h>
-
-#include <netinet/in.h>
-#include <netinet/if_ether.h>
-
-#include <memory.h>
-#include <pcap.h>
-#include <pcap-namedb.h>
-#include <setjmp.h>
-#if __STDC__
-#include <stdarg.h>
-#include <stdlib.h>
-#else
-#include <varargs.h>
-#endif
-
-#include "gencode.h"
-
-#ifndef __GNUC__
-#define inline
-#endif
-
-#ifndef ETHERTYPE_REVARP
-#define ETHERTYPE_REVARP	0x8035
-#endif
-#ifndef	ETHERTYPE_MOPDL
-#define	ETHERTYPE_MOPDL		0x6001
-#endif
-#ifndef	ETHERTYPE_MOPRC
-#define	ETHERTYPE_MOPRC		0x6002
-#endif
-#ifndef	ETHERTYPE_DN
-#define	ETHERTYPE_DN		0x6003
-#endif
-#ifndef	ETHERTYPE_LAT
-#define	ETHERTYPE_LAT		0x6004
-#endif
-
-#define JMP(c) ((c)|BPF_JMP|BPF_K)
-
-static jmp_buf top_ctx;
-static pcap_t *bpf_pcap;
-
-/* VARARGS */
-volatile void
-#if __STDC__ || defined(SOLARIS)
-bpf_error(char *fmt, ...)
-#else
-bpf_error(fmt, va_alist)
-	char *fmt;
-	va_dcl
-#endif
-{
-	va_list ap;
-
-#if __STDC__
-	va_start(ap, fmt);
-#else
-	va_start(ap);
-#endif
-	if (bpf_pcap != NULL)
-		(void)vsprintf(pcap_geterr(bpf_pcap), fmt, ap);
-	va_end(ap);
-	longjmp(top_ctx, 1);
-	/* NOTREACHED */
-}
-
-static void init_linktype(int);
-
-static int alloc_reg(void);
-static void free_reg(int);
-
-static struct block *root;
-
-/*
- * We divy out chunks of memory rather than call malloc each time so
- * we don't have to worry about leaking memory.  It's probably
- * not a big deal if all this memory was wasted but it this ever
- * goes into a library that would probably not be a good idea.
- */
-#define NCHUNKS 16
-#define CHUNK0SIZE 1024
-struct chunk {
-	u_int n_left;
-	void *m;
-};
-
-static struct chunk chunks[NCHUNKS];
-static int cur_chunk;
-
-static void *newchunk(u_int);
-static void freechunks(void);
-static inline struct block *new_block(int);
-static inline struct slist *new_stmt(int);
-static struct block *gen_retblk(int);
-static inline void syntax(void);
-
-static void backpatch(struct block *, struct block *);
-static void merge(struct block *, struct block *);
-static struct block *gen_cmp(u_int, u_int, long);
-static struct block *gen_mcmp(u_int, u_int, long, u_long);
-static struct block *gen_bcmp(u_int, u_int, u_char *);
-static struct block *gen_uncond(int);
-static inline struct block *gen_true(void);
-static inline struct block *gen_false(void);
-static struct block *gen_linktype(int);
-static struct block *gen_hostop(u_long, u_long, int, int, u_int, u_int);
-static struct block *gen_ehostop(u_char *, int);
-#ifdef FDDI
-static struct block *gen_fhostop(u_char *, int);
-#endif
-static struct block *gen_dnhostop(u_long, int, u_int);
-static struct block *gen_host(u_long, u_long, int, int);
-static struct block *gen_gateway(u_char *, u_long **, int, int);
-static struct block *gen_ipfrag(void);
-static struct block *gen_portatom(int, long);
-struct block *gen_portop(int, int, int);
-static struct block *gen_port(int, int, int);
-static int lookup_proto(char *, int);
-static struct block *gen_proto(int, int, int);
-static u_long net_mask(u_long *);
-static u_long net_mask(u_long *);
-static struct slist *xfer_to_x(struct arth *);
-static struct slist *xfer_to_a(struct arth *);
-static struct block *gen_len(int, int);
-
-static void *
-newchunk(n)
-	u_int n;
-{
-	struct chunk *cp;
-	int k, size;
-
-	/* XXX Round up to nearest long. */
-	n = (n + sizeof(long) - 1) & ~(sizeof(long) - 1);
-
-	cp = &chunks[cur_chunk];
-	if (n > cp->n_left) {
-		++cp, k = ++cur_chunk;
-		if (k >= NCHUNKS)
-			bpf_error("out of memory");
-		size = CHUNK0SIZE << k;
-		cp->m = (void *)malloc(size);
-		memset((char *)cp->m, 0, size);
-		cp->n_left = size;
-		if (n > size)
-			bpf_error("out of memory");
-	}
-	cp->n_left -= n;
-	return (void *)((char *)cp->m + cp->n_left);
-}
-
-static void
-freechunks()
-{
-	int i;
-
-	for (i = 0; i < NCHUNKS; ++i)
-		if (chunks[i].m)
-			free(chunks[i].m);
-}
-
-/*
- * A strdup whose allocations are freed after code generation is over.
- */
-char *
-sdup(s)
-	char *s;
-{
-	int n = strlen(s) + 1;
-	char *cp = newchunk(n);
-	strcpy(cp, s);
-	return (cp);
-}
-
-static inline struct block *
-new_block(code)
-	int code;
-{
-	struct block *p;
-
-	p = (struct block *)newchunk(sizeof(*p));
-	p->s.code = code;
-	p->head = p;
-
-	return p;
-}
-
-static inline struct slist *
-new_stmt(code)
-	int code;
-{
-	struct slist *p;
-
-	p = (struct slist *)newchunk(sizeof(*p));
-	p->s.code = code;
-
-	return p;
-}
-
-static struct block *
-gen_retblk(v)
-	int v;
-{
-	struct block *b = new_block(BPF_RET|BPF_K);
-
-	b->s.k = v;
-	return b;
-}
-
-static inline void
-syntax()
-{
-	bpf_error("syntax error in filter expression");
-}
-
-static u_long netmask;
-static int snaplen;
-
-int
-pcap_compile(pcap_t *p, struct bpf_program *program,
-	     char *buf, int optimize, u_long mask)
-{
-	extern int n_errors;
-	int len;
-
-	bpf_pcap = p;
-	if (setjmp(top_ctx))
-		return (-1);
-
-	netmask = mask;
-	snaplen = pcap_snapshot(p);
-
-	lex_init(buf ? buf : "");
-	init_linktype(pcap_datalink(p));
-	pcap_parse();
-
-	if (n_errors)
-		syntax();
-
-	if (root == NULL)
-		root = gen_retblk(snaplen);
-
-	if (optimize) {
-		bpf_optimize(&root);
-		if (root == NULL ||
-		    (root->s.code == (BPF_RET|BPF_K) && root->s.k == 0))
-			bpf_error("expression rejects all packets");
-	}
-	program->bf_insns = icode_to_fcode(root, &len);
-	program->bf_len = len;
-
-	freechunks();
-	return (0);
-}
-
-/*
- * Backpatch the blocks in 'list' to 'target'.  The 'sense' field indicates
- * which of the jt and jf fields has been resolved and which is a pointer
- * back to another unresolved block (or nil).  At least one of the fields
- * in each block is already resolved.
- */
-static void
-backpatch(list, target)
-	struct block *list, *target;
-{
-	struct block *next;
-
-	while (list) {
-		if (!list->sense) {
-			next = JT(list);
-			JT(list) = target;
-		} else {
-			next = JF(list);
-			JF(list) = target;
-		}
-		list = next;
-	}
-}
-
-/*
- * Merge the lists in b0 and b1, using the 'sense' field to indicate
- * which of jt and jf is the link.
- */
-static void
-merge(b0, b1)
-	struct block *b0, *b1;
-{
-	register struct block **p = &b0;
-
-	/* Find end of list. */
-	while (*p)
-		p = !((*p)->sense) ? &JT(*p) : &JF(*p);
-
-	/* Concatenate the lists. */
-	*p = b1;
-}
-
-void
-finish_parse(p)
-	struct block *p;
-{
-	backpatch(p, gen_retblk(snaplen));
-	p->sense = !p->sense;
-	backpatch(p, gen_retblk(0));
-	root = p->head;
-}
-
-void
-gen_and(b0, b1)
-	struct block *b0, *b1;
-{
-	backpatch(b0, b1->head);
-	b0->sense = !b0->sense;
-	b1->sense = !b1->sense;
-	merge(b1, b0);
-	b1->sense = !b1->sense;
-	b1->head = b0->head;
-}
-
-void
-gen_or(b0, b1)
-	struct block *b0, *b1;
-{
-	b0->sense = !b0->sense;
-	backpatch(b0, b1->head);
-	b0->sense = !b0->sense;
-	merge(b1, b0);
-	b1->head = b0->head;
-}
-
-void
-gen_not(b)
-	struct block *b;
-{
-	b->sense = !b->sense;
-}
-
-static struct block *
-gen_cmp(offset, size, v)
-	u_int offset, size;
-	long v;
-{
-	struct slist *s;
-	struct block *b;
-
-	s = new_stmt(BPF_LD|BPF_ABS|size);
-	s->s.k = offset;
-
-	b = new_block(JMP(BPF_JEQ));
-	b->stmts = s;
-	b->s.k = v;
-
-	return b;
-}
-
-static struct block *
-gen_mcmp(offset, size, v, mask)
-	u_int offset, size;
-	long v;
-	u_long mask;
-{
-	struct block *b = gen_cmp(offset, size, v);
-	struct slist *s;
-
-	if (mask != 0xffffffff) {
-		s = new_stmt(BPF_ALU|BPF_AND|BPF_K);
-		s->s.k = mask;
-		b->stmts->next = s;
-	}
-	return b;
-}
-
-static struct block *
-gen_bcmp(offset, size, v)
-	u_int offset, size;
-	u_char *v;
-{
-	struct block *b, *tmp;
-
-	b = NULL;
-	while (size >= 4) {
-		u_char *p = &v[size - 4];
-		long w = (p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3];
-		tmp = gen_cmp(offset + size - 4, BPF_W, w);
-		if (b != NULL)
-			gen_and(b, tmp);
-		b = tmp;
-		size -= 4;
-	}
-	while (size >= 2) {
-		u_char *p = &v[size - 2];
-		long w = (p[0] << 8) | p[1];
-		tmp = gen_cmp(offset + size - 2, BPF_H, w);
-		if (b != NULL)
-			gen_and(b, tmp);
-		b = tmp;
-		size -= 2;
-	}
-	if (size > 0) {
-		tmp = gen_cmp(offset, BPF_B, (long)v[0]);
-		if (b != NULL)
-			gen_and(b, tmp);
-		b = tmp;
-	}
-	return b;
-}
-
-/*
- * Various code constructs need to know the layout of the data link
- * layer.  These variables give the necessary offsets.  off_linktype
- * is set to -1 for no encapsulation, in which case, IP is assumed.
- */
-static u_int off_linktype;
-static u_int off_nl;
-static int linktype;
-#ifdef FDDI
-extern int fddipad;
-#endif
-
-static void
-init_linktype(type)
-	int type;
-{
-	linktype = type;
-
-	switch (type) {
-
-	case DLT_EN10MB:
-		off_linktype = 12;
-		off_nl = 14;
-		return;
-
-	case DLT_SLIP:
-		/*
-		 * SLIP doesn't have a link level type.  The 16 byte
-		 * header is hacked into our SLIP driver.
-		 */
-		off_linktype = -1;
-		off_nl = 16;
-		return;
-
-	case DLT_NULL:
-		off_linktype = 0;
-		off_nl = 4;
-		return;
-
-	case DLT_PPP:
-		off_linktype = 2;
-		off_nl = 4;
-		return;
-
-#ifdef FDDI
-	case DLT_FDDI:
-		/*
-		 * FDDI doesn't really have a link-level type field.
-		 * We assume that SSAP = SNAP is being used and pick
-		 * out the encapsulated Ethernet type.
-		 */
-		off_linktype = 19 + fddipad;
-		off_nl = 21 + fddipad;
-		return;
-#endif
-
-	case DLT_IEEE802:
-		off_linktype = 20;
-		off_nl = 22;
-		return;
-	}
-	bpf_error("unknown data link type 0x%x", linktype);
-	/* NOTREACHED */
-}
-
-static struct block *
-gen_uncond(rsense)
-	int rsense;
-{
-	struct block *b;
-	struct slist *s;
-
-	s = new_stmt(BPF_LD|BPF_IMM);
-	s->s.k = !rsense;
-	b = new_block(JMP(BPF_JEQ));
-	b->stmts = s;
-
-	return b;
-}
-
-static inline struct block *
-gen_true()
-{
-	return gen_uncond(1);
-}
-
-static inline struct block *
-gen_false()
-{
-	return gen_uncond(0);
-}
-
-static struct block *
-gen_linktype(proto)
-	int proto;
-{
-	switch (linktype) {
-	case DLT_SLIP:
-		if (proto == ETHERTYPE_IP)
-			return gen_true();
-		else
-			return gen_false();
-
-	case DLT_PPP:
-		if (proto == ETHERTYPE_IP)
-			proto = 0x0021;		/* XXX - need ppp.h defs */
-		break;
-
-	case DLT_NULL:
-		if (proto == ETHERTYPE_IP) {
-			proto = htonl(AF_INET); /* loopback & tun put */
-						/* sa_family into     */
-						/* prepended word     */
-			return gen_cmp(off_linktype, BPF_W, (long)proto);
-		}
- 		break;
-	}
-	return gen_cmp(off_linktype, BPF_H, (long)proto);
-}
-
-static struct block *
-gen_hostop(addr, mask, dir, proto, src_off, dst_off)
-	u_long addr;
-	u_long mask;
-	int dir, proto;
-	u_int src_off, dst_off;
-{
-	struct block *b0, *b1;
-	u_int offset;
-
-	switch (dir) {
-
-	case Q_SRC:
-		offset = src_off;
-		break;
-
-	case Q_DST:
-		offset = dst_off;
-		break;
-
-	case Q_AND:
-		b0 = gen_hostop(addr, mask, Q_SRC, proto, src_off, dst_off);
-		b1 = gen_hostop(addr, mask, Q_DST, proto, src_off, dst_off);
-		gen_and(b0, b1);
-		return b1;
-
-	case Q_OR:
-	case Q_DEFAULT:
-		b0 = gen_hostop(addr, mask, Q_SRC, proto, src_off, dst_off);
-		b1 = gen_hostop(addr, mask, Q_DST, proto, src_off, dst_off);
-		gen_or(b0, b1);
-		return b1;
-
-	default:
-		abort();
-	}
-	b0 = gen_linktype(proto);
-	b1 = gen_mcmp(offset, BPF_W, (long)addr, mask);
-	gen_and(b0, b1);
-	return b1;
-}
-
-static struct block *
-gen_ehostop(eaddr, dir)
-	u_char *eaddr;
-	int dir;
-{
-	struct block *b0, *b1;
-
-	switch (dir) {
-	case Q_SRC:
-		return gen_bcmp(6, 6, eaddr);
-
-	case Q_DST:
-		return gen_bcmp(0, 6, eaddr);
-
-	case Q_AND:
-		b0 = gen_ehostop(eaddr, Q_SRC);
-		b1 = gen_ehostop(eaddr, Q_DST);
-		gen_and(b0, b1);
-		return b1;
-
-	case Q_DEFAULT:
-	case Q_OR:
-		b0 = gen_ehostop(eaddr, Q_SRC);
-		b1 = gen_ehostop(eaddr, Q_DST);
-		gen_or(b0, b1);
-		return b1;
-	}
-	abort();
-	/* NOTREACHED */
-}
-
-#ifdef FDDI
-/*
- * Like gen_ehostop, but for DLT_FDDI
- */
-static struct block *
-gen_fhostop(eaddr, dir)
-	u_char *eaddr;
-	int dir;
-{
-	struct block *b0, *b1;
-
-	switch (dir) {
-	case Q_SRC:
-		return gen_bcmp(6 + 1 + fddipad, 6, eaddr);
-
-	case Q_DST:
-		return gen_bcmp(0 + 1 + fddipad, 6, eaddr);
-
-	case Q_AND:
-		b0 = gen_fhostop(eaddr, Q_SRC);
-		b1 = gen_fhostop(eaddr, Q_DST);
-		gen_and(b0, b1);
-		return b1;
-
-	case Q_DEFAULT:
-	case Q_OR:
-		b0 = gen_fhostop(eaddr, Q_SRC);
-		b1 = gen_fhostop(eaddr, Q_DST);
-		gen_or(b0, b1);
-		return b1;
-	}
-	abort();
-	/* NOTREACHED */
-}
-#endif
-
-/*
- * This is quite tricky because there may be pad bytes in front of the
- * DECNET header, and then there are two possible data packet formats that
- * carry both src and dst addresses, plus 5 packet types in a format that
- * carries only the src node, plus 2 types that use a different format and
- * also carry just the src node.
- *
- * Yuck.
- *
- * Instead of doing those all right, we just look for data packets with
- * 0 or 1 bytes of padding.  If you want to look at other packets, that
- * will require a lot more hacking.
- *
- * To add support for filtering on DECNET "areas" (network numbers)
- * one would want to add a "mask" argument to this routine.  That would
- * make the filter even more inefficient, although one could be clever
- * and not generate masking instructions if the mask is 0xFFFF.
- */
-static struct block *
-gen_dnhostop(addr, dir, base_off)
-	u_long addr;
-	int dir;
-	u_int base_off;
-{
-	struct block *b0, *b1, *b2, *tmp;
-	u_int offset_lh;	/* offset if long header is received */
-	u_int offset_sh;	/* offset if short header is received */
-
-	switch (dir) {
-
-	case Q_DST:
-		offset_sh = 1;	/* follows flags */
-		offset_lh = 7;	/* flgs,darea,dsubarea,HIORD */
-		break;
-
-	case Q_SRC:
-		offset_sh = 3;	/* follows flags, dstnode */
-		offset_lh = 15;	/* flgs,darea,dsubarea,did,sarea,ssub,HIORD */
-		break;
-
-	case Q_AND:
-		/* Inefficient because we do our Calvinball dance twice */
-		b0 = gen_dnhostop(addr, Q_SRC, base_off);
-		b1 = gen_dnhostop(addr, Q_DST, base_off);
-		gen_and(b0, b1);
-		return b1;
-
-	case Q_OR:
-	case Q_DEFAULT:
-		/* Inefficient because we do our Calvinball dance twice */
-		b0 = gen_dnhostop(addr, Q_SRC, base_off);
-		b1 = gen_dnhostop(addr, Q_DST, base_off);
-		gen_or(b0, b1);
-		return b1;
-
-	default:
-		abort();
-	}
-	b0 = gen_linktype(ETHERTYPE_DN);
-	/* Check for pad = 1, long header case */
-	tmp = gen_mcmp(base_off + 2, BPF_H,
-				(long)ntohs(0x0681), (long)ntohs(0x07FF));
-	b1 = gen_cmp(base_off + 2 + 1 + offset_lh, BPF_H, (long)ntohs(addr));
-	gen_and(tmp, b1);
-	/* Check for pad = 0, long header case */
-	tmp = gen_mcmp(base_off + 2, BPF_B, (long)0x06, (long)0x7);
-	b2 = gen_cmp(base_off + 2 + offset_lh, BPF_H, (long)ntohs(addr));
-	gen_and(tmp, b2);
-	gen_or(b2, b1);
-	/* Check for pad = 1, short header case */
-	tmp = gen_mcmp(base_off + 2, BPF_H,
-				(long)ntohs(0x0281), (long)ntohs(0x07FF));
-	b2 = gen_cmp(base_off + 2 + 1 + offset_sh, BPF_H, (long)ntohs(addr));
-	gen_and(tmp, b2);
-	gen_or(b2, b1);
-	/* Check for pad = 0, short header case */
-	tmp = gen_mcmp(base_off + 2, BPF_B, (long)0x02, (long)0x7);
-	b2 = gen_cmp(base_off + 2 + offset_sh, BPF_H, (long)ntohs(addr));
-	gen_and(tmp, b2);
-	gen_or(b2, b1);
-
-	/* Combine with test for linktype */
-	gen_and(b0, b1);
-	return b1;
-}
-
-static struct block *
-gen_host(addr, mask, proto, dir)
-	u_long addr;
-	u_long mask;
-	int proto;
-	int dir;
-{
-	struct block *b0, *b1;
-
-	switch (proto) {
-
-	case Q_DEFAULT:
-		b0 = gen_host(addr, mask, Q_IP, dir);
-		b1 = gen_host(addr, mask, Q_ARP, dir);
-		gen_or(b0, b1);
-		b0 = gen_host(addr, mask, Q_RARP, dir);
-		gen_or(b1, b0);
-		return b0;
-
-	case Q_IP:
-		return gen_hostop(addr, mask, dir, ETHERTYPE_IP,
-				  off_nl + 12, off_nl + 16);
-
-	case Q_RARP:
-		return gen_hostop(addr, mask, dir, ETHERTYPE_REVARP,
-				  off_nl + 14, off_nl + 24);
-
-	case Q_ARP:
-		return gen_hostop(addr, mask, dir, ETHERTYPE_ARP,
-				  off_nl + 14, off_nl + 24);
-
-	case Q_TCP:
-		bpf_error("'tcp' modifier applied to host");
-
-	case Q_UDP:
-		bpf_error("'udp' modifier applied to host");
-
-	case Q_ICMP:
-		bpf_error("'icmp' modifier applied to host");
-
-	case Q_DECNET:
-		return gen_dnhostop(addr, dir, off_nl);
-
-	case Q_LAT:
-		bpf_error("LAT host filtering not implemented");
-
-	case Q_MOPDL:
-		bpf_error("MOPDL host filtering not implemented");
-
-	case Q_MOPRC:
-		bpf_error("MOPRC host filtering not implemented");
-
-	default:
-		abort();
-	}
-	/* NOTREACHED */
-}
-
-static struct block *
-gen_gateway(eaddr, alist, proto, dir)
-	u_char *eaddr;
-	u_long **alist;
-	int proto;
-	int dir;
-{
-	struct block *b0, *b1, *tmp;
-
-	if (dir != 0)
-		bpf_error("direction applied to 'gateway'");
-
-	switch (proto) {
-	case Q_DEFAULT:
-	case Q_IP:
-	case Q_ARP:
-	case Q_RARP:
-		if (linktype == DLT_EN10MB)
-			b0 = gen_ehostop(eaddr, Q_OR);
-#ifdef FDDI
-		else if (linktype == DLT_FDDI)
-			b0 = gen_fhostop(eaddr, Q_OR);
-#endif
-		else
-			bpf_error("'gateway' supported only on ethernet or FDDI");
-
-		b1 = gen_host(**alist++, 0xffffffffL, proto, Q_OR);
-		while (*alist) {
-			tmp = gen_host(**alist++, 0xffffffffL, proto, Q_OR);
-			gen_or(b1, tmp);
-			b1 = tmp;
-		}
-		gen_not(b1);
-		gen_and(b0, b1);
-		return b1;
-	}
-	bpf_error("illegal modifier of 'gateway'");
-	/* NOTREACHED */
-}
-
-struct block *
-gen_proto_abbrev(proto)
-	int proto;
-{
-	struct block *b0, *b1;
-
-	switch (proto) {
-
-	case Q_TCP:
-		b0 = gen_linktype(ETHERTYPE_IP);
-		b1 = gen_cmp(off_nl + 9, BPF_B, (long)IPPROTO_TCP);
-		gen_and(b0, b1);
-		break;
-
-	case Q_UDP:
-		b0 =  gen_linktype(ETHERTYPE_IP);
-		b1 = gen_cmp(off_nl + 9, BPF_B, (long)IPPROTO_UDP);
-		gen_and(b0, b1);
-		break;
-
-	case Q_ICMP:
-		b0 =  gen_linktype(ETHERTYPE_IP);
-		b1 = gen_cmp(off_nl + 9, BPF_B, (long)IPPROTO_ICMP);
-		gen_and(b0, b1);
-		break;
-
-	case Q_IP:
-		b1 =  gen_linktype(ETHERTYPE_IP);
-		break;
-
-	case Q_ARP:
-		b1 =  gen_linktype(ETHERTYPE_ARP);
-		break;
-
-	case Q_RARP:
-		b1 =  gen_linktype(ETHERTYPE_REVARP);
-		break;
-
-	case Q_LINK:
-		bpf_error("link layer applied in wrong context");
-
-	case Q_DECNET:
-		b1 =  gen_linktype(ETHERTYPE_DN);
-		break;
-
-	case Q_LAT:
-		b1 =  gen_linktype(ETHERTYPE_LAT);
-		break;
-
-	case Q_MOPDL:
-		b1 =  gen_linktype(ETHERTYPE_MOPDL);
-		break;
-
-	case Q_MOPRC:
-		b1 =  gen_linktype(ETHERTYPE_MOPRC);
-		break;
-
-	default:
-		abort();
-	}
-	return b1;
-}
-
-static struct block *
-gen_ipfrag()
-{
-	struct slist *s;
-	struct block *b;
-
-	/* not ip frag */
-	s = new_stmt(BPF_LD|BPF_H|BPF_ABS);
-	s->s.k = off_nl + 6;
-	b = new_block(JMP(BPF_JSET));
-	b->s.k = 0x1fff;
-	b->stmts = s;
-	gen_not(b);
-
-	return b;
-}
-
-static struct block *
-gen_portatom(off, v)
-	int off;
-	long v;
-{
-	struct slist *s;
-	struct block *b;
-
-	s = new_stmt(BPF_LDX|BPF_MSH|BPF_B);
-	s->s.k = off_nl;
-
-	s->next = new_stmt(BPF_LD|BPF_IND|BPF_H);
-	s->next->s.k = off_nl + off;
-
-	b = new_block(JMP(BPF_JEQ));
-	b->stmts = s;
-	b->s.k = v;
-
-	return b;
-}
-
-struct block *
-gen_portop(port, proto, dir)
-	int port, proto, dir;
-{
-	struct block *b0, *b1, *tmp;
-
-	/* ip proto 'proto' */
-	tmp = gen_cmp(off_nl + 9, BPF_B, (long)proto);
-	b0 = gen_ipfrag();
-	gen_and(tmp, b0);
-
-	switch (dir) {
-	case Q_SRC:
-		b1 = gen_portatom(0, (long)port);
-		break;
-
-	case Q_DST:
-		b1 = gen_portatom(2, (long)port);
-		break;
-
-	case Q_OR:
-	case Q_DEFAULT:
-		tmp = gen_portatom(0, (long)port);
-		b1 = gen_portatom(2, (long)port);
-		gen_or(tmp, b1);
-		break;
-
-	case Q_AND:
-		tmp = gen_portatom(0, (long)port);
-		b1 = gen_portatom(2, (long)port);
-		gen_and(tmp, b1);
-		break;
-
-	default:
-		abort();
-	}
-	gen_and(b0, b1);
-
-	return b1;
-}
-
-static struct block *
-gen_port(port, ip_proto, dir)
-	int port;
-	int ip_proto;
-	int dir;
-{
-	struct block *b0, *b1, *tmp;
-
-	/* ether proto ip */
-	b0 =  gen_linktype(ETHERTYPE_IP);
-
-	switch (ip_proto) {
-	case IPPROTO_UDP:
-	case IPPROTO_TCP:
-		b1 = gen_portop(port, ip_proto, dir);
-		break;
-
-	case PROTO_UNDEF:
-		tmp = gen_portop(port, IPPROTO_TCP, dir);
-		b1 = gen_portop(port, IPPROTO_UDP, dir);
-		gen_or(tmp, b1);
-		break;
-
-	default:
-		abort();
-	}
-	gen_and(b0, b1);
-	return b1;
-}
-
-static int
-lookup_proto(name, proto)
-	char *name;
-	int proto;
-{
-	int v;
-
-	switch (proto) {
-	case Q_DEFAULT:
-	case Q_IP:
-		v = pcap_nametoproto(name);
-		if (v == PROTO_UNDEF)
-			bpf_error("unknown ip proto '%s'", name);
-		break;
-
-	case Q_LINK:
-		/* XXX should look up h/w protocol type based on linktype */
-		v = pcap_nametoeproto(name);
-		if (v == PROTO_UNDEF)
-			bpf_error("unknown ether proto '%s'", name);
-		break;
-
-	default:
-		v = PROTO_UNDEF;
-		break;
-	}
-	return v;
-}
-
-static struct block *
-gen_proto(v, proto, dir)
-	int v;
-	int proto;
-	int dir;
-{
-	struct block *b0, *b1;
-
-	if (dir != Q_DEFAULT)
-		bpf_error("direction applied to 'proto'");
-
-	switch (proto) {
-	case Q_DEFAULT:
-	case Q_IP:
-		b0 = gen_linktype(ETHERTYPE_IP);
-		b1 = gen_cmp(off_nl + 9, BPF_B, (long)v);
-		gen_and(b0, b1);
-		return b1;
-
-	case Q_ARP:
-		bpf_error("arp does not encapsulate another protocol");
-		/* NOTREACHED */
-
-	case Q_RARP:
-		bpf_error("rarp does not encapsulate another protocol");
-		/* NOTREACHED */
-
-	case Q_DECNET:
-		bpf_error("decnet encapsulation is not specifiable");
-		/* NOTREACHED */
-
-	case Q_LAT:
-		bpf_error("lat does not encapsulate another protocol");
-		/* NOTREACHED */
-
-	case Q_MOPRC:
-		bpf_error("moprc does not encapsulate another protocol");
-		/* NOTREACHED */
-
-	case Q_MOPDL:
-		bpf_error("mopdl does not encapsulate another protocol");
-		/* NOTREACHED */
-
-	case Q_LINK:
-		return gen_linktype(v);
-
-	case Q_UDP:
-		bpf_error("'udp proto' is bogus");
-		/* NOTREACHED */
-
-	case Q_TCP:
-		bpf_error("'tcp proto' is bogus");
-		/* NOTREACHED */
-
-	case Q_ICMP:
-		bpf_error("'icmp proto' is bogus");
-		/* NOTREACHED */
-
-	default:
-		abort();
-		/* NOTREACHED */
-	}
-	/* NOTREACHED */
-}
-
-/*
- * Left justify 'addr' and return its resulting network mask.
- */
-static u_long
-net_mask(addr)
-	u_long *addr;
-{
-	register u_long m = 0xffffffff;
-
-	if (*addr)
-		while ((*addr & 0xff000000) == 0)
-			*addr <<= 8, m <<= 8;
-
-	return m;
-}
-
-struct block *
-gen_scode(name, q)
-	char *name;
-	struct qual q;
-{
-	int proto = q.proto;
-	int dir = q.dir;
-	u_char *eaddr;
-	u_long mask, addr, **alist;
-	struct block *b, *tmp;
-	int port, real_proto;
-
-	switch (q.addr) {
-
-	case Q_NET:
-		addr = pcap_nametonetaddr(name);
-		if (addr == 0)
-			bpf_error("unknown network '%s'", name);
-		mask = net_mask(&addr);
-		return gen_host(addr, mask, proto, dir);
-
-	case Q_DEFAULT:
-	case Q_HOST:
-		if (proto == Q_LINK) {
-			switch (linktype) {
-			case DLT_EN10MB:
-				eaddr = pcap_ether_hostton(name);
-				if (eaddr == NULL)
-					bpf_error("unknown ether host '%s'", name);
-				return gen_ehostop(eaddr, dir);
-
-#ifdef FDDI
-			case DLT_FDDI:
-				eaddr = pcap_ether_hostton(name);
-				if (eaddr == NULL)
-					bpf_error("unknown FDDI host '%s'", name);
-				return gen_fhostop(eaddr, dir);
-#endif
-			default:
-				bpf_error("only ethernet/FDDI supports link-level host name");
-				break;
-			}
-		} else if (proto == Q_DECNET) {
-			unsigned short dn_addr = __pcap_nametodnaddr(name);
-			/*
-			 * I don't think DECNET hosts can be multihomed, so
-			 * there is no need to build up a list of addresses
-			 */
-			return (gen_host(dn_addr, 0, proto, dir));
-		} else {
-			alist = pcap_nametoaddr(name);
-			if (alist == NULL || *alist == NULL)
-				bpf_error("unknown host '%s'", name);
-			b = gen_host(**alist++, 0xffffffffL, proto, dir);
-			while (*alist) {
-				tmp = gen_host(**alist++, 0xffffffffL,
-					       proto, dir);
-				gen_or(b, tmp);
-				b = tmp;
-			}
-			return b;
-		}
-
-	case Q_PORT:
-		if (proto != Q_DEFAULT && proto != Q_UDP && proto != Q_TCP)
-			bpf_error("illegal qualifier of 'port'");
-		if (pcap_nametoport(name, &port, &real_proto) == 0)
-			bpf_error("unknown port '%s'", name);
-		if (proto == Q_UDP) {
-			if (real_proto == IPPROTO_TCP)
-				bpf_error("port '%s' is tcp", name);
-			else
-				/* override PROTO_UNDEF */
-				real_proto = IPPROTO_UDP;
-		}
-		if (proto == Q_TCP) {
-			if (real_proto == IPPROTO_UDP)
-				bpf_error("port '%s' is udp", name);
-			else
-				/* override PROTO_UNDEF */
-				real_proto = IPPROTO_TCP;
-		}
-		return gen_port(port, real_proto, dir);
-
-	case Q_GATEWAY:
-		eaddr = pcap_ether_hostton(name);
-		if (eaddr == NULL)
-			bpf_error("unknown ether host: %s", name);
-
-		alist = pcap_nametoaddr(name);
-		if (alist == NULL || *alist == NULL)
-			bpf_error("unknown host '%s'", name);
-		return gen_gateway(eaddr, alist, proto, dir);
-
-	case Q_PROTO:
-		real_proto = lookup_proto(name, proto);
-		if (real_proto >= 0)
-			return gen_proto(real_proto, proto, dir);
-		else
-			bpf_error("unknown protocol: %s", name);
-
-	case Q_UNDEF:
-		syntax();
-		/* NOTREACHED */
-	}
-	abort();
-	/* NOTREACHED */
-}
-
-struct block *
-gen_ncode(v, q)
-	u_long v;
-	struct qual q;
-{
-	u_long mask;
-	int proto = q.proto;
-	int dir = q.dir;
-
-	switch (q.addr) {
-
-	case Q_DEFAULT:
-	case Q_HOST:
-	case Q_NET:
-		if (proto == Q_DECNET)
-			return gen_host(v, 0, proto, dir);
-		else if (proto == Q_LINK) {
-			bpf_error("illegal link layer address");
-		} else {
-			mask = net_mask(&v);
-			return gen_host(v, mask, proto, dir);
-		}
-
-	case Q_PORT:
-		if (proto == Q_UDP)
-			proto = IPPROTO_UDP;
-		else if (proto == Q_TCP)
-			proto = IPPROTO_TCP;
-		else if (proto == Q_DEFAULT)
-			proto = PROTO_UNDEF;
-		else
-			bpf_error("illegal qualifier of 'port'");
-
-		return gen_port((int)v, proto, dir);
-
-	case Q_GATEWAY:
-		bpf_error("'gateway' requires a name");
-		/* NOTREACHED */
-
-	case Q_PROTO:
-		return gen_proto((int)v, proto, dir);
-
-	case Q_UNDEF:
-		syntax();
-		/* NOTREACHED */
-
-	default:
-		abort();
-		/* NOTREACHED */
-	}
-	/* NOTREACHED */
-}
-
-struct block *
-gen_ecode(eaddr, q)
-	u_char *eaddr;
-	struct qual q;
-{
-	if ((q.addr == Q_HOST || q.addr == Q_DEFAULT) && q.proto == Q_LINK) {
-		if (linktype == DLT_EN10MB)
-			return gen_ehostop(eaddr, (int)q.dir);
-#ifdef FDDI
-		if (linktype == DLT_FDDI)
-			return gen_fhostop(eaddr, (int)q.dir);
-#endif
-	}
-	bpf_error("ethernet address used in non-ether expression");
-	/* NOTREACHED */
-}
-
-void
-sappend(s0, s1)
-	struct slist *s0, *s1;
-{
-	/*
-	 * This is definitely not the best way to do this, but the
-	 * lists will rarely get long.
-	 */
-	while (s0->next)
-		s0 = s0->next;
-	s0->next = s1;
-}
-
-static struct slist *
-xfer_to_x(a)
-	struct arth *a;
-{
-	struct slist *s;
-
-	s = new_stmt(BPF_LDX|BPF_MEM);
-	s->s.k = a->regno;
-	return s;
-}
-
-static struct slist *
-xfer_to_a(a)
-	struct arth *a;
-{
-	struct slist *s;
-
-	s = new_stmt(BPF_LD|BPF_MEM);
-	s->s.k = a->regno;
-	return s;
-}
-
-struct arth *
-gen_load(proto, index, size)
-	int proto;
-	struct arth *index;
-	int size;
-{
-	struct slist *s, *tmp;
-	struct block *b;
-	int regno = alloc_reg();
-
-	free_reg(index->regno);
-	switch (size) {
-
-	default:
-		bpf_error("data size must be 1, 2, or 4");
-
-	case 1:
-		size = BPF_B;
-		break;
-
-	case 2:
-		size = BPF_H;
-		break;
-
-	case 4:
-		size = BPF_W;
-		break;
-	}
-	switch (proto) {
-	default:
-		bpf_error("unsupported index operation");
-
-	case Q_LINK:
-		s = xfer_to_x(index);
-		tmp = new_stmt(BPF_LD|BPF_IND|size);
-		sappend(s, tmp);
-		sappend(index->s, s);
-		break;
-
-	case Q_IP:
-	case Q_ARP:
-	case Q_RARP:
-	case Q_DECNET:
-	case Q_LAT:
-	case Q_MOPRC:
-	case Q_MOPDL:
-		/* XXX Note that we assume a fixed link link header here. */
-		s = xfer_to_x(index);
-		tmp = new_stmt(BPF_LD|BPF_IND|size);
-		tmp->s.k = off_nl;
-		sappend(s, tmp);
-		sappend(index->s, s);
-
-		b = gen_proto_abbrev(proto);
-		if (index->b)
-			gen_and(index->b, b);
-		index->b = b;
-		break;
-
-	case Q_TCP:
-	case Q_UDP:
-	case Q_ICMP:
-		s = new_stmt(BPF_LDX|BPF_MSH|BPF_B);
-		s->s.k = off_nl;
-		sappend(s, xfer_to_a(index));
-		sappend(s, new_stmt(BPF_ALU|BPF_ADD|BPF_X));
-		sappend(s, new_stmt(BPF_MISC|BPF_TAX));
-		sappend(s, tmp = new_stmt(BPF_LD|BPF_IND|size));
-		tmp->s.k = off_nl;
-		sappend(index->s, s);
-
-		gen_and(gen_proto_abbrev(proto), b = gen_ipfrag());
-		if (index->b)
-			gen_and(index->b, b);
-		index->b = b;
-		break;
-	}
-	index->regno = regno;
-	s = new_stmt(BPF_ST);
-	s->s.k = regno;
-	sappend(index->s, s);
-
-	return index;
-}
-
-struct block *
-gen_relation(code, a0, a1, reversed)
-	int code;
-	struct arth *a0, *a1;
-	int reversed;
-{
-	struct slist *s0, *s1, *s2;
-	struct block *b, *tmp;
-
-	s0 = xfer_to_x(a1);
-	s1 = xfer_to_a(a0);
-	s2 = new_stmt(BPF_ALU|BPF_SUB|BPF_X);
-	b = new_block(JMP(code));
-	if (reversed)
-		gen_not(b);
-
-	sappend(s1, s2);
-	sappend(s0, s1);
-	sappend(a1->s, s0);
-	sappend(a0->s, a1->s);
-
-	b->stmts = a0->s;
-
-	free_reg(a0->regno);
-	free_reg(a1->regno);
-
-	/* 'and' together protocol checks */
-	if (a0->b) {
-		if (a1->b) {
-			gen_and(a0->b, tmp = a1->b);
-		}
-		else
-			tmp = a0->b;
-	} else
-		tmp = a1->b;
-
-	if (tmp)
-		gen_and(tmp, b);
-
-	return b;
-}
-
-struct arth *
-gen_loadlen()
-{
-	int regno = alloc_reg();
-	struct arth *a = (struct arth *)newchunk(sizeof(*a));
-	struct slist *s;
-
-	s = new_stmt(BPF_LD|BPF_LEN);
-	s->next = new_stmt(BPF_ST);
-	s->next->s.k = regno;
-	a->s = s;
-	a->regno = regno;
-
-	return a;
-}
-
-struct arth *
-gen_loadi(val)
-	int val;
-{
-	struct arth *a;
-	struct slist *s;
-	int reg;
-
-	a = (struct arth *)newchunk(sizeof(*a));
-
-	reg = alloc_reg();
-
-	s = new_stmt(BPF_LD|BPF_IMM);
-	s->s.k = val;
-	s->next = new_stmt(BPF_ST);
-	s->next->s.k = reg;
-	a->s = s;
-	a->regno = reg;
-
-	return a;
-}
-
-struct arth *
-gen_neg(a)
-	struct arth *a;
-{
-	struct slist *s;
-
-	s = xfer_to_a(a);
-	sappend(a->s, s);
-	s = new_stmt(BPF_ALU|BPF_NEG);
-	s->s.k = 0;
-	sappend(a->s, s);
-	s = new_stmt(BPF_ST);
-	s->s.k = a->regno;
-	sappend(a->s, s);
-
-	return a;
-}
-
-struct arth *
-gen_arth(code, a0, a1)
-	int code;
-	struct arth *a0, *a1;
-{
-	struct slist *s0, *s1, *s2;
-
-	s0 = xfer_to_x(a1);
-	s1 = xfer_to_a(a0);
-	s2 = new_stmt(BPF_ALU|BPF_X|code);
-
-	sappend(s1, s2);
-	sappend(s0, s1);
-	sappend(a1->s, s0);
-	sappend(a0->s, a1->s);
-
-	free_reg(a1->regno);
-
-	s0 = new_stmt(BPF_ST);
-	a0->regno = s0->s.k = alloc_reg();
-	sappend(a0->s, s0);
-
-	return a0;
-}
-
-/*
- * Here we handle simple allocation of the scratch registers.
- * If too many registers are alloc'd, the allocator punts.
- */
-static int regused[BPF_MEMWORDS];
-static int curreg;
-
-/*
- * Return the next free register.
- */
-static int
-alloc_reg()
-{
-	int n = BPF_MEMWORDS;
-
-	while (--n >= 0) {
-		if (regused[curreg])
-			curreg = (curreg + 1) % BPF_MEMWORDS;
-		else {
-			regused[curreg] = 1;
-			return curreg;
-		}
-	}
-	bpf_error("too many registers needed to evaluate expression");
-	/* NOTREACHED */
-}
-
-/*
- * Return a register to the table so it can
- * be used later.
- */
-static void
-free_reg(n)
-	int n;
-{
-	regused[n] = 0;
-}
-
-static struct block *
-gen_len(jmp, n)
-	int jmp, n;
-{
-	struct slist *s;
-	struct block *b;
-
-	s = new_stmt(BPF_LD|BPF_LEN);
-	s->next = new_stmt(BPF_ALU|BPF_SUB|BPF_K);
-	s->next->s.k = n;
-	b = new_block(JMP(jmp));
-	b->stmts = s;
-
-	return b;
-}
-
-struct block *
-gen_greater(n)
-	int n;
-{
-	return gen_len(BPF_JGE, n);
-}
-
-struct block *
-gen_less(n)
-	int n;
-{
-	struct block *b;
-
-	b = gen_len(BPF_JGT, n);
-	gen_not(b);
-
-	return b;
-}
-
-struct block *
-gen_byteop(op, idx, val)
-	int op, idx, val;
-{
-	struct block *b;
-	struct slist *s;
-
-	switch (op) {
-	default:
-		abort();
-
-	case '=':
-		return gen_cmp((u_int)idx, BPF_B, (long)val);
-
-	case '<':
-		b = gen_cmp((u_int)idx, BPF_B, (long)val);
-		b->s.code = JMP(BPF_JGE);
-		gen_not(b);
-		return b;
-
-	case '>':
-		b = gen_cmp((u_int)idx, BPF_B, (long)val);
-		b->s.code = JMP(BPF_JGT);
-		return b;
-
-	case '|':
-		s = new_stmt(BPF_ALU|BPF_OR|BPF_K);
-		break;
-
-	case '&':
-		s = new_stmt(BPF_ALU|BPF_AND|BPF_K);
-		break;
-	}
-	s->s.k = val;
-	b = new_block(JMP(BPF_JEQ));
-	b->stmts = s;
-	gen_not(b);
-
-	return b;
-}
-
-struct block *
-gen_broadcast(proto)
-	int proto;
-{
-	u_long hostmask;
-	struct block *b0, *b1, *b2;
-	static u_char ebroadcast[] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
-
-	switch (proto) {
-
-	case Q_DEFAULT:
-	case Q_LINK:
-		if (linktype == DLT_EN10MB)
-			return gen_ehostop(ebroadcast, Q_DST);
-#ifdef FDDI
-		if (linktype == DLT_FDDI)
-			return gen_fhostop(ebroadcast, Q_DST);
-#endif
-		bpf_error("not a broadcast link");
-		break;
-
-	case Q_IP:
-		b0 = gen_linktype(ETHERTYPE_IP);
-		hostmask = ~netmask;
-		b1 = gen_mcmp(off_nl + 16, BPF_W, (long)0, hostmask);
-		b2 = gen_mcmp(off_nl + 16, BPF_W,
-			      (long)(~0 & hostmask), hostmask);
-		gen_or(b1, b2);
-		gen_and(b0, b2);
-		return b2;
-	}
-	bpf_error("only ether/ip broadcast filters supported");
-}
-
-struct block *
-gen_multicast(proto)
-	int proto;
-{
-	register struct block *b0, *b1;
-	register struct slist *s;
-
-	switch (proto) {
-
-	case Q_DEFAULT:
-	case Q_LINK:
-		if (linktype == DLT_EN10MB) {
-			/* ether[0] & 1 != 0 */
-			s = new_stmt(BPF_LD|BPF_B|BPF_ABS);
-			s->s.k = 0;
-			b0 = new_block(JMP(BPF_JSET));
-			b0->s.k = 1;
-			b0->stmts = s;
-			return b0;
-		}
-
-		if (linktype == DLT_FDDI) {
-			/* XXX TEST THIS: MIGHT NOT PORT PROPERLY XXX */
-			/* fddi[1] & 1 != 0 */
-			s = new_stmt(BPF_LD|BPF_B|BPF_ABS);
-			s->s.k = 1;
-			b0 = new_block(JMP(BPF_JSET));
-			b0->s.k = 1;
-			b0->stmts = s;
-			return b0;
-		}
-		/* Link not known to support multicasts */
-		break;
-
-	case Q_IP:
-		b0 = gen_linktype(ETHERTYPE_IP);
-		b1 = gen_cmp(off_nl + 16, BPF_B, (long)224);
-		b1->s.code = JMP(BPF_JGE);
-		gen_and(b0, b1);
-		return b1;
-	}
-	bpf_error("only IP multicast filters supported on ethernet/FDDI");
-}
-
-/*
- * generate command for inbound/outbound.  It's here so we can
- * make it link-type specific.  'dir' = 0 implies "inbound",
- * = 1 implies "outbound".
- */
-struct block *
-gen_inbound(dir)
-	int dir;
-{
-	register struct block *b0;
-
-	b0 = gen_relation(BPF_JEQ,
-			  gen_load(Q_LINK, gen_loadi(0), 1),
-			  gen_loadi(0),
-			  dir);
-	return (b0);
-}
diff --git a/lib/libpcap/gencode.h b/lib/libpcap/gencode.h
deleted file mode 100644
index 34d4c19..0000000
--- a/lib/libpcap/gencode.h
+++ /dev/null
@@ -1,173 +0,0 @@
-/*
- * Copyright (c) 1990, 1991, 1992, 1993, 1994
- *	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.
- *
- * @(#) $Header: /home/ncvs/src/lib/libpcap/gencode.h,v 1.1.1.1 1995/01/20 04:13:06 jkh Exp $ (LBL)
- */
-
-/*
- * filter.h must be included before this file.
- */
-
-/* Address qualifers. */
-
-#define Q_HOST		1
-#define Q_NET		2
-#define Q_PORT		3
-#define Q_GATEWAY	4
-#define Q_PROTO		5
-
-/* Protocol qualifiers. */
-
-#define Q_LINK		1
-#define Q_IP		2
-#define Q_ARP		3
-#define Q_RARP		4
-#define Q_TCP		5
-#define Q_UDP		6
-#define Q_ICMP		7
-
-#define	Q_DECNET	8
-#define	Q_LAT		9
-#define	Q_MOPRC		10
-#define	Q_MOPDL		11
-
-/* Directional qualifers. */
-
-#define Q_SRC		1
-#define Q_DST		2
-#define Q_OR		3
-#define Q_AND		4
-
-#define Q_DEFAULT	0
-#define Q_UNDEF		255
-
-struct stmt {
-	int code;
-	long k;
-};
-
-struct slist {
-	struct stmt s;
-	struct slist *next;
-};
-
-/*
- * A bit vector to represent definition sets.  We assume TOT_REGISTERS
- * is smaller than 8*sizeof(atomset).
- */
-typedef u_long atomset;
-#define ATOMMASK(n) (1 << (n))
-#define ATOMELEM(d, n) (d & ATOMMASK(n))
-
-/*
- * An unbounded set.
- */
-typedef u_long *uset;
-
-/*
- * Total number of atomic entities, including accumulator (A) and index (X).
- * We treat all these guys similarly during flow analysis.
- */
-#define N_ATOMS (BPF_MEMWORDS+2)
-
-struct edge {
-	int id;
-	int code;
-	uset edom;
-	struct block *succ;
-	struct block *pred;
-	struct edge *next;	/* link list of incoming edges for a node */
-};
-
-struct block {
-	int id;
-	struct slist *stmts;	/* side effect stmts */
-	struct stmt s;		/* branch stmt */
-	int mark;
-	int level;
-	int offset;
-	int sense;
-	struct edge et;
-	struct edge ef;
-	struct block *head;
-	struct block *link;	/* link field used by optimizer */
-	uset dom;
-	uset closure;
-	struct edge *in_edges;
-	atomset def, kill;
-	atomset in_use;
-	atomset out_use;
-	long oval;
-	long val[N_ATOMS];
-};
-
-struct arth {
-	struct block *b;	/* protocol checks */
-	struct slist *s;	/* stmt list */
-	int regno;		/* virtual register number of result */
-};
-
-struct qual {
-	unsigned char addr;
-	unsigned char proto;
-	unsigned char dir;
-	unsigned char pad;
-};
-
-#ifndef __GNUC__
-#define volatile
-#endif
-
-struct arth *gen_loadi(int);
-struct arth *gen_load(int, struct arth *, int);
-struct arth *gen_loadlen(void);
-struct arth *gen_neg(struct arth *);
-struct arth *gen_arth(int, struct arth *, struct arth *);
-
-void gen_and(struct block *, struct block *);
-void gen_or(struct block *, struct block *);
-void gen_not(struct block *);
-
-struct block *gen_scode(char *, struct qual);
-struct block *gen_ecode(u_char *, struct qual);
-struct block *gen_ncode(u_long, struct qual);
-struct block *gen_proto_abbrev(int);
-struct block *gen_relation(int, struct arth *, struct arth *, int);
-struct block *gen_less(int);
-struct block *gen_greater(int);
-struct block *gen_byteop(int, int, int);
-struct block *gen_broadcast(int);
-struct block *gen_multicast(int);
-struct block *gen_inbound(int);
-
-void bpf_optimize(struct block **);
-volatile void bpf_error(char *, ...);
-
-void finish_parse(struct block *);
-char *sdup(char *);
-
-struct bpf_insn *icode_to_fcode(struct block *, int *);
-int pcap_parse(void);
-void lex_init(char *);
-void sappend(struct slist *, struct slist *);
-
-/* XXX */
-#define JT(b)  ((b)->et.succ)
-#define JF(b)  ((b)->ef.succ)
diff --git a/lib/libpcap/grammar.y b/lib/libpcap/grammar.y
deleted file mode 100644
index 4c17bdc..0000000
--- a/lib/libpcap/grammar.y
+++ /dev/null
@@ -1,266 +0,0 @@
-%{
-/*
- * Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994
- *	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 char rcsid[] =
-    "@(#) $Header: /home/ncvs/src/lib/libpcap/grammar.y,v 1.1.1.1 1995/01/20 04:13:06 jkh Exp $ (LBL)";
-#endif
-
-#include <sys/types.h>
-#include <sys/time.h>
-#include <sys/socket.h>
-
-#include <net/if.h>
-#include <net/bpf.h>
-
-#include <netinet/in.h>
-#include <netinet/if_ether.h>
-
-#include <stdio.h>
-#include <pcap.h>
-#include <pcap-namedb.h>
-
-#include "gencode.h"
-
-#define yylval pcap_lval
-
-#define QSET(q, p, d, a) (q).proto = (p),\
-			 (q).dir = (d),\
-			 (q).addr = (a)
-
-int n_errors = 0;
-
-static struct qual qerr = { Q_UNDEF, Q_UNDEF, Q_UNDEF, Q_UNDEF };
-
-static void
-yyerror(char *msg)
-{
-	++n_errors;
-	bpf_error(msg);
-	/* NOTREACHED */
-}
-
-#ifndef YYBISON
-pcap_parse()
-{
-	return (yyparse());
-}
-#endif
-
-%}
-
-%union {
-	int i;
-	u_long h;
-	u_char *e;
-	char *s;
-	struct stmt *stmt;
-	struct arth *a;
-	struct {
-		struct qual q;
-		struct block *b;
-	} blk;
-	struct block *rblk;
-}
-
-%type	<blk>	expr id nid pid term rterm qid
-%type	<blk>	head
-%type	<i>	pqual dqual aqual ndaqual
-%type	<a>	arth narth
-%type	<i>	byteop pname pnum relop irelop
-%type	<blk>	and or paren not null prog
-%type	<rblk>	other
-
-%token  DST SRC HOST GATEWAY
-%token  NET PORT LESS GREATER PROTO BYTE
-%token  ARP RARP IP TCP UDP ICMP
-%token  DECNET LAT MOPRC MOPDL
-%token  TK_BROADCAST TK_MULTICAST
-%token  NUM INBOUND OUTBOUND
-%token  LINK
-%token	GEQ LEQ NEQ
-%token	ID EID HID
-%token	LSH RSH
-%token  LEN
-
-%type	<s> ID
-%type	<e> EID
-%type	<h> HID
-%type	<i> NUM
-
-%left OR AND
-%nonassoc  '!'
-%left '|'
-%left '&'
-%left LSH RSH
-%left '+' '-'
-%left '*' '/'
-%nonassoc UMINUS
-%%
-prog:	  null expr
-{
-	finish_parse($2.b);
-}
-	| null
-	;
-null:	  /* null */		{ $$.q = qerr; }
-	;
-expr:	  term
-	| expr and term		{ gen_and($1.b, $3.b); $$ = $3; }
-	| expr and id		{ gen_and($1.b, $3.b); $$ = $3; }
-	| expr or term		{ gen_or($1.b, $3.b); $$ = $3; }
-	| expr or id		{ gen_or($1.b, $3.b); $$ = $3; }
-	;
-and:	  AND			{ $$ = $<blk>0; }
-	;
-or:	  OR			{ $$ = $<blk>0; }
-	;
-id:	  nid
-	| pnum			{ $$.b = gen_ncode((u_long)$1,
-						   $$.q = $<blk>0.q); }
-	| paren pid ')'		{ $$ = $2; }
-	;
-nid:	  ID			{ $$.b = gen_scode($1, $$.q = $<blk>0.q); }
-	| HID			{
-				  /* Decide how to parse HID based on proto */
-				  $$.q = $<blk>0.q;
-				  switch ($$.q.proto) {
-				  case Q_DECNET:
-					$$.b =
-					    gen_ncode(__pcap_atodn((char *)$1),
-					    $$.q);
-					break;
-				  default:
-					$$.b =
-					    gen_ncode(__pcap_atoin((char *)$1),
-					    $$.q);
-					break;
-				  }
-				}
-	| EID			{ $$.b = gen_ecode($1, $$.q = $<blk>0.q); }
-	| not id		{ gen_not($2.b); $$ = $2; }
-	;
-not:	  '!'			{ $$ = $<blk>0; }
-	;
-paren:	  '('			{ $$ = $<blk>0; }
-	;
-pid:	  nid
-	| qid and id		{ gen_and($1.b, $3.b); $$ = $3; }
-	| qid or id		{ gen_or($1.b, $3.b); $$ = $3; }
-	;
-qid:	  pnum			{ $$.b = gen_ncode((u_long)$1,
-						   $$.q = $<blk>0.q); }
-	| pid
-	;
-term:	  rterm
-	| not term		{ gen_not($2.b); $$ = $2; }
-	;
-head:	  pqual dqual aqual	{ QSET($$.q, $1, $2, $3); }
-	| pqual dqual		{ QSET($$.q, $1, $2, Q_DEFAULT); }
-	| pqual aqual		{ QSET($$.q, $1, Q_DEFAULT, $2); }
-	| pqual PROTO		{ QSET($$.q, $1, Q_DEFAULT, Q_PROTO); }
-	| pqual ndaqual		{ QSET($$.q, $1, Q_DEFAULT, $2); }
-	;
-rterm:	  head id		{ $$ = $2; }
-	| paren expr ')'	{ $$.b = $2.b; $$.q = $1.q; }
-	| pname			{ $$.b = gen_proto_abbrev($1); $$.q = qerr; }
-	| arth relop arth	{ $$.b = gen_relation($2, $1, $3, 0);
-				  $$.q = qerr; }
-	| arth irelop arth	{ $$.b = gen_relation($2, $1, $3, 1);
-				  $$.q = qerr; }
-	| other			{ $$.b = $1; $$.q = qerr; }
-	;
-/* protocol level qualifiers */
-pqual:	  pname
-	|			{ $$ = Q_DEFAULT; }
-	;
-/* 'direction' qualifiers */
-dqual:	  SRC			{ $$ = Q_SRC; }
-	| DST			{ $$ = Q_DST; }
-	| SRC OR DST		{ $$ = Q_OR; }
-	| DST OR SRC		{ $$ = Q_OR; }
-	| SRC AND DST		{ $$ = Q_AND; }
-	| DST AND SRC		{ $$ = Q_AND; }
-	;
-/* address type qualifiers */
-aqual:	  HOST			{ $$ = Q_HOST; }
-	| NET			{ $$ = Q_NET; }
-	| PORT			{ $$ = Q_PORT; }
-	;
-/* non-directional address type qualifiers */
-ndaqual:  GATEWAY		{ $$ = Q_GATEWAY; }
-	;
-pname:	  LINK			{ $$ = Q_LINK; }
-	| IP			{ $$ = Q_IP; }
-	| ARP			{ $$ = Q_ARP; }
-	| RARP			{ $$ = Q_RARP; }
-	| TCP			{ $$ = Q_TCP; }
-	| UDP			{ $$ = Q_UDP; }
-	| ICMP			{ $$ = Q_ICMP; }
-	| DECNET		{ $$ = Q_DECNET; }
-	| LAT			{ $$ = Q_LAT; }
-	| MOPDL			{ $$ = Q_MOPDL; }
-	| MOPRC			{ $$ = Q_MOPRC; }
-	;
-other:	  pqual TK_BROADCAST	{ $$ = gen_broadcast($1); }
-	| pqual TK_MULTICAST	{ $$ = gen_multicast($1); }
-	| LESS NUM		{ $$ = gen_less($2); }
-	| GREATER NUM		{ $$ = gen_greater($2); }
-	| BYTE NUM byteop NUM	{ $$ = gen_byteop($3, $2, $4); }
-	| INBOUND		{ $$ = gen_inbound(0); }
-	| OUTBOUND		{ $$ = gen_inbound(1); }
-	;
-relop:	  '>'			{ $$ = BPF_JGT; }
-	| GEQ			{ $$ = BPF_JGE; }
-	| '='			{ $$ = BPF_JEQ; }
-	;
-irelop:	  LEQ			{ $$ = BPF_JGT; }
-	| '<'			{ $$ = BPF_JGE; }
-	| NEQ			{ $$ = BPF_JEQ; }
-	;
-arth:	  pnum			{ $$ = gen_loadi($1); }
-	| narth
-	;
-narth:	  pname '[' arth ']'		{ $$ = gen_load($1, $3, 1); }
-	| pname '[' arth ':' NUM ']'	{ $$ = gen_load($1, $3, $5); }
-	| arth '+' arth			{ $$ = gen_arth(BPF_ADD, $1, $3); }
-	| arth '-' arth			{ $$ = gen_arth(BPF_SUB, $1, $3); }
-	| arth '*' arth			{ $$ = gen_arth(BPF_MUL, $1, $3); }
-	| arth '/' arth			{ $$ = gen_arth(BPF_DIV, $1, $3); }
-	| arth '&' arth			{ $$ = gen_arth(BPF_AND, $1, $3); }
-	| arth '|' arth			{ $$ = gen_arth(BPF_OR, $1, $3); }
-	| arth LSH arth			{ $$ = gen_arth(BPF_LSH, $1, $3); }
-	| arth RSH arth			{ $$ = gen_arth(BPF_RSH, $1, $3); }
-	| '-' arth %prec UMINUS		{ $$ = gen_neg($2); }
-	| paren narth ')'		{ $$ = $2; }
-	| LEN				{ $$ = gen_loadlen(); }
-	;
-byteop:	  '&'			{ $$ = '&'; }
-	| '|'			{ $$ = '|'; }
-	| '<'			{ $$ = '<'; }
-	| '>'			{ $$ = '>'; }
-	| '='			{ $$ = '='; }
-	;
-pnum:	  NUM
-	| paren pnum ')'	{ $$ = $2; }
-	;
-%%
diff --git a/lib/libpcap/inet.c b/lib/libpcap/inet.c
deleted file mode 100644
index 3092011..0000000
--- a/lib/libpcap/inet.c
+++ /dev/null
@@ -1,196 +0,0 @@
-/*
- * Copyright (c) 1994
- *	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 the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the Computer Systems
- *	Engineering Group at Lawrence Berkeley Laboratory.
- * 4. Neither the name of the University nor of the Laboratory may be used
- *    to endorse or promote products derived from this software without
- *    specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#ifndef lint
-static char rcsid[] =
-    "@(#) $Header: /home/ncvs/src/lib/libpcap/inet.c,v 1.1.1.1 1995/01/20 04:13:03 jkh Exp $ (LBL)";
-#endif
-
-#include <sys/param.h>
-#include <sys/file.h>
-#include <sys/ioctl.h>
-#include <sys/socket.h>
-#ifdef SOLARIS
-#include <sys/sockio.h>
-#endif
-
-#include <net/if.h>
-#include <netinet/in.h>
-
-#include <ctype.h>
-#include <errno.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <pcap.h>
-
-/* Not all systems have IFF_LOOPBACK */
-#ifdef IFF_LOOPBACK
-#define ISLOOPBACK(p) ((p)->ifr_flags & IFF_LOOPBACK)
-#else
-#define ISLOOPBACK(p) (strcmp((p)->ifr_name, "lo0") == 0)
-#endif
-
-/*
- * Return the name of a network interface attached to the system, or NULL
- * if none can be found.  The interface must be configured up; the
- * lowest unit number is preferred; loopback is ignored.
- */
-char *
-pcap_lookupdev(errbuf)
-	register char *errbuf;
-{
-	register int fd, minunit, n;
-	register char *cp;
-	register struct ifreq *ifrp, *ifend, *ifnext, *mp;
-	struct ifconf ifc;
-	struct ifreq ibuf[16], ifr;
-	static char device[sizeof(ifrp->ifr_name) + 1];
-
-	fd = socket(AF_INET, SOCK_DGRAM, 0);
-	if (fd < 0) {
-		(void)sprintf(errbuf, "socket: %s", pcap_strerror(errno));
-		return (NULL);
-	}
-	ifc.ifc_len = sizeof ibuf;
-	ifc.ifc_buf = (caddr_t)ibuf;
-
-	if (ioctl(fd, SIOCGIFCONF, (char *)&ifc) < 0 ||
-	    ifc.ifc_len < sizeof(struct ifreq)) {
-		(void)sprintf(errbuf, "SIOCGIFCONF: %s", pcap_strerror(errno));
-		(void)close(fd);
-		return (NULL);
-	}
-	ifrp = ibuf;
-	ifend = (struct ifreq *)((char *)ibuf + ifc.ifc_len);
-
-	mp = NULL;
-	minunit = 666;
-	for (; ifrp < ifend; ifrp = ifnext) {
-#if BSD - 0 >= 199006
-		n = ifrp->ifr_addr.sa_len + sizeof(ifrp->ifr_name);
-		if (n < sizeof(*ifrp))
-			ifnext = ifrp + 1;
-		else
-			ifnext = (struct ifreq *)((char *)ifrp + n);
-		if (ifrp->ifr_addr.sa_family != AF_INET)
-			continue;
-#else
-		ifnext = ifrp + 1;
-#endif
-		/*
-		 * Need a template to preserve address info that is
-		 * used below to locate the next entry.  (Otherwise,
-		 * SIOCGIFFLAGS stomps over it because the requests
-		 * are returned in a union.)
-		 */
-		strncpy(ifr.ifr_name, ifrp->ifr_name, sizeof(ifr.ifr_name));
-		if (ioctl(fd, SIOCGIFFLAGS, (char *)&ifr) < 0) {
-			(void)sprintf(errbuf, "SIOCGIFFLAGS: %s",
-			    pcap_strerror(errno));
-			(void)close(fd);
-			return (NULL);
-		}
-
-		/* Must be up and not the loopback */
-		if ((ifr.ifr_flags & IFF_UP) == 0 || ISLOOPBACK(&ifr))
-			continue;
-
-		for (cp = ifrp->ifr_name; !isdigit(*cp); ++cp)
-			continue;
-		n = atoi(cp);
-		if (n < minunit) {
-			minunit = n;
-			mp = ifrp;
-		}
-	}
-	(void)close(fd);
-	if (mp == NULL) {
-		(void)strcpy(errbuf, "no suitable device found");
-		return (NULL);
-	}
-
-	(void)strncpy(device, mp->ifr_name, sizeof(device) - 1);
-	device[sizeof(device) - 1] = '\0';
-	return (device);
-}
-
-int
-pcap_lookupnet(device, netp, maskp, errbuf)
-	register char *device;
-	register u_long *netp, *maskp;
-	register char *errbuf;
-{
-	register int fd;
-	register struct sockaddr_in *sin;
-	struct ifreq ifr;
-
-	fd = socket(AF_INET, SOCK_DGRAM, 0);
-	if (fd < 0) {
-		(void)sprintf(errbuf, "socket: %s", pcap_strerror(errno));
-		return (-1);
-	}
-	(void)strncpy(ifr.ifr_name, device, sizeof(ifr.ifr_name));
-	if (ioctl(fd, SIOCGIFADDR, (char *)&ifr) < 0) {
-		(void)sprintf(errbuf, "SIOCGIFADDR: %s: %s",
-		    device, pcap_strerror(errno));
-		(void)close(fd);
-		return (-1);
-	}
-	sin = (struct sockaddr_in *)&ifr.ifr_addr;
-	*netp = sin->sin_addr.s_addr;
-	if (ioctl(fd, SIOCGIFNETMASK, (char *)&ifr) < 0) {
-		(void)sprintf(errbuf, "SIOCGIFNETMASK: %s: %s",
-		    device, pcap_strerror(errno));
-		(void)close(fd);
-		return (-1);
-	}
-	(void)close(fd);
-	*maskp = sin->sin_addr.s_addr;
-	if (*maskp == 0) {
-		if (IN_CLASSA(*netp))
-			*maskp = IN_CLASSA_NET;
-		else if (IN_CLASSB(*netp))
-			*maskp = IN_CLASSB_NET;
-		else if (IN_CLASSC(*netp))
-			*maskp = IN_CLASSC_NET;
-		else {
-			(void)sprintf(errbuf, "inet class for 0x%lx unknown",
-			    *netp);
-			return (-1);
-		}
-	}
-	*netp &= *maskp;
-	return (0);
-}
diff --git a/lib/libpcap/nametoaddr.c b/lib/libpcap/nametoaddr.c
deleted file mode 100644
index 59e7439..0000000
--- a/lib/libpcap/nametoaddr.c
+++ /dev/null
@@ -1,358 +0,0 @@
-/*
- * Copyright (c) 1990, 1991, 1992, 1993, 1994
- *	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.
- *
- * Name to id translation routines used by the scanner.
- * These functions are not time critical.
- */
-
-#ifndef lint
-static char rcsid[] =
-    "@(#) $Header: /home/ncvs/src/lib/libpcap/nametoaddr.c,v 1.2 1995/05/30 05:47:21 rgrimes Exp $ (LBL)";
-#endif
-
-#include <sys/param.h>
-#include <sys/socket.h>
-#include <net/if.h>
-#include <netinet/in.h>
-#include <netinet/if_ether.h>
-#include <arpa/inet.h>
-
-#include <ctype.h>
-#include <errno.h>
-#include <netdb.h>
-#include <pcap.h>
-#include <pcap-namedb.h>
-#include <stdio.h>
-#include <stdlib.h>
-
-#include "gencode.h"
-
-#ifndef __GNUC__
-#define inline
-#endif
-
-#ifndef NTOHL
-#define NTOHL(x) (x) = ntohl(x)
-#define NTOHS(x) (x) = ntohs(x)
-#endif
-
-static inline int xdtoi(int);
-
-/*
- *  Convert host name to internet address.
- *  Return 0 upon failure.
- */
-u_long **
-pcap_nametoaddr(const char *name)
-{
-#ifndef h_addr
-	static u_long *hlist[2];
-#endif
-	u_long **p;
-	struct hostent *hp;
-
-	if ((hp = gethostbyname(name)) != NULL) {
-#ifndef h_addr
-		hlist[0] = (u_long *)hp->h_addr;
-		NTOHL(hp->h_addr);
-		return hlist;
-#else
-		for (p = (u_long **)hp->h_addr_list; *p; ++p)
-			NTOHL(**p);
-		return (u_long **)hp->h_addr_list;
-#endif
-	}
-	else
-		return 0;
-}
-
-/*
- *  Convert net name to internet address.
- *  Return 0 upon failure.
- */
-u_long
-pcap_nametonetaddr(const char *name)
-{
-	struct netent *np;
-
-	if ((np = getnetbyname(name)) != NULL)
-		return np->n_net;
-	else
-		return 0;
-}
-
-/*
- * Convert a port name to its port and protocol numbers.
- * We assume only TCP or UDP.
- * Return 0 upon failure.
- */
-int
-pcap_nametoport(const char *name, int *port, int *proto)
-{
-	struct servent *sp;
-	char *other;
-
-	sp = getservbyname(name, (char *)0);
-	if (sp != NULL) {
-		NTOHS(sp->s_port);
-		*port = sp->s_port;
-		*proto = pcap_nametoproto(sp->s_proto);
-		/*
-		 * We need to check /etc/services for ambiguous entries.
-		 * If we find the ambiguous entry, and it has the
-		 * same port number, change the proto to PROTO_UNDEF
-		 * so both TCP and UDP will be checked.
-		 */
-		if (*proto == IPPROTO_TCP)
-			other = "udp";
-		else
-			other = "tcp";
-
-		sp = getservbyname(name, other);
-		if (sp != 0) {
-			NTOHS(sp->s_port);
-			if (*port != sp->s_port)
-				/* Can't handle ambiguous names that refer
-				   to different port numbers. */
-#ifdef notdef
-				warning("ambiguous port %s in /etc/services",
-					name);
-#else
-			;
-#endif
-			*proto = PROTO_UNDEF;
-		}
-		return 1;
-	}
-#if defined(ultrix) || defined(__osf__)
-	/* Special hack in case NFS isn't in /etc/services */
-	if (strcmp(name, "nfs") == 0) {
-		*port = 2049;
-		*proto = PROTO_UNDEF;
-		return 1;
-	}
-#endif
-	return 0;
-}
-
-int
-pcap_nametoproto(const char *str)
-{
-	struct protoent *p;
-
-	p = getprotobyname(str);
-	if (p != 0)
-		return p->p_proto;
-	else
-		return PROTO_UNDEF;
-}
-
-#include "ethertype.h"
-
-struct eproto {
-	char *s;
-	u_short p;
-};
-
-/* Static data base of ether protocol types. */
-struct eproto eproto_db[] = {
-	{ "pup", ETHERTYPE_PUP },
-	{ "xns", ETHERTYPE_NS },
-	{ "ip", ETHERTYPE_IP },
-	{ "arp", ETHERTYPE_ARP },
-	{ "rarp", ETHERTYPE_REVARP },
-	{ "sprite", ETHERTYPE_SPRITE },
-	{ "mopdl", ETHERTYPE_MOPDL },
-	{ "moprc", ETHERTYPE_MOPRC },
-	{ "decnet", ETHERTYPE_DN },
-	{ "lat", ETHERTYPE_LAT },
-	{ "lanbridge", ETHERTYPE_LANBRIDGE },
-	{ "vexp", ETHERTYPE_VEXP },
-	{ "vprod", ETHERTYPE_VPROD },
-	{ "atalk", ETHERTYPE_ATALK },
-	{ "atalkarp", ETHERTYPE_AARP },
-	{ "loopback", ETHERTYPE_LOOPBACK },
-	{ "decdts", ETHERTYPE_DECDTS },
-	{ "decdns", ETHERTYPE_DECDNS },
-	{ (char *)0, 0 }
-};
-
-int
-pcap_nametoeproto(const char *s)
-{
-	struct eproto *p = eproto_db;
-
-	while (p->s != 0) {
-		if (strcmp(p->s, s) == 0)
-			return p->p;
-		p += 1;
-	}
-	return PROTO_UNDEF;
-}
-
-/* Hex digit to integer. */
-static inline int
-xdtoi(c)
-	register int c;
-{
-	if (isdigit(c))
-		return c - '0';
-	else if (islower(c))
-		return c - 'a' + 10;
-	else
-		return c - 'A' + 10;
-}
-
-u_long
-__pcap_atoin(const char *s)
-{
-	u_long addr = 0;
-	u_int n;
-
-	while (1) {
-		n = 0;
-		while (*s && *s != '.')
-			n = n * 10 + *s++ - '0';
-		addr <<= 8;
-		addr |= n & 0xff;
-		if (*s == '\0')
-			return addr;
-		++s;
-	}
-	/* NOTREACHED */
-}
-
-u_long
-__pcap_atodn(const char *s)
-{
-#define AREASHIFT 10
-#define AREAMASK 0176000
-#define NODEMASK 01777
-
-	u_long addr = 0;
-	u_int node, area;
-
-	if (sscanf((char *)s, "%d.%d", &area, &node) != 2)
-		bpf_error("malformed decnet address '%s'", s);
-
-	addr = (area << AREASHIFT) & AREAMASK;
-	addr |= (node & NODEMASK);
-
-	return(addr);
-}
-
-/*
- * Convert 's' which has the form "xx:xx:xx:xx:xx:xx" into a new
- * ethernet address.  Assumes 's' is well formed.
- */
-u_char *
-pcap_ether_aton(const char *s)
-{
-	register u_char *ep, *e;
-	register u_int d;
-
-	e = ep = (u_char *)malloc(6);
-
-	while (*s) {
-		if (*s == ':')
-			s += 1;
-		d = xdtoi(*s++);
-		if (isxdigit(*s)) {
-			d <<= 4;
-			d |= xdtoi(*s++);
-		}
-		*ep++ = d;
-	}
-
-	return (e);
-}
-
-#ifndef ETHER_SERVICE
-/* Roll our own */
-u_char *
-pcap_ether_hostton(const char *name)
-{
-	register struct pcap_etherent *ep;
-	register u_char *ap;
-	static FILE *fp = NULL;
-	static init = 0;
-
-	if (!init) {
-		fp = fopen(PCAP_ETHERS_FILE, "r");
-		++init;
-		if (fp == NULL)
-			return (NULL);
-	} else if (fp == NULL)
-		return (NULL);
-	else
-		rewind(fp);
-
-	while ((ep = pcap_next_etherent(fp)) != NULL) {
-		if (strcmp(ep->name, name) == 0) {
-			ap = (u_char *)malloc(6);
-			if (ap != NULL) {
-				memcpy(ap, ep->addr, 6);
-				return (ap);
-			}
-			break;
-		}
-	}
-	return (NULL);
-}
-#else
-/* Use the os supplied routines */
-u_char *
-pcap_ether_hostton(const char *name)
-{
-	register u_char *ap;
-	u_char a[6];
-#ifndef sgi
-	extern int ether_hostton(char *, struct ether_addr *);
-#endif
-
-	ap = NULL;
-	if (ether_hostton((char*)name, (struct ether_addr *)a) == 0) {
-		ap = (u_char *)malloc(6);
-		if (ap != NULL)
-			memcpy(ap, a, 6);
-	}
-	return (ap);
-}
-#endif
-
-u_short
-__pcap_nametodnaddr(const char *name)
-{
-#ifdef	DECNETLIB
-	struct nodeent *getnodebyname();
-	struct nodeent *nep;
-	unsigned short res;
-
-	nep = getnodebyname(name);
-	if (nep == ((struct nodeent *)0))
-		bpf_error("unknown decnet host name '%s'\n", name);
-
-	memcpy((char *)&res, (char *)nep->n_addr, sizeof(unsigned short));
-	return(res);
-#else
-	bpf_error("decnet name support not included, '%s' cannot be translated\n",
-		name);
-#endif
-}
diff --git a/lib/libpcap/optimize.c b/lib/libpcap/optimize.c
deleted file mode 100644
index c198e36..0000000
--- a/lib/libpcap/optimize.c
+++ /dev/null
@@ -1,1924 +0,0 @@
-/*
- * Copyright (c) 1988, 1989, 1990, 1991, 1993, 1994
- *	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.
- *
- *  Optimization module for tcpdump intermediate representation.
- */
-#ifndef lint
-static char rcsid[] =
-    "@(#) $Header: /home/ncvs/src/lib/libpcap/optimize.c,v 1.1.1.1 1995/01/20 04:13:03 jkh Exp $ (LBL)";
-#endif
-
-#include <sys/types.h>
-#include <sys/time.h>
-
-#include <net/bpf.h>
-
-#include <stdio.h>
-#include <stdlib.h>
-#ifdef __osf__
-#include <stdlib.h>
-#include <malloc.h>
-#endif
-#include <memory.h>
-
-#include "gencode.h"
-
-#ifndef __GNUC__
-#define inline
-#endif
-
-#define A_ATOM BPF_MEMWORDS
-#define X_ATOM (BPF_MEMWORDS+1)
-
-#define NOP -1
-
-/*
- * This define is used to represent *both* the accumulator and
- * x register in use-def computations.
- * Currently, the use-def code assumes only one definition per instruction.
- */
-#define AX_ATOM N_ATOMS
-
-/*
- * A flag to indicate that further optimization is needed.
- * Iterative passes are continued until a given pass yields no
- * branch movement.
- */
-static int done;
-
-/*
- * A block is marked if only if its mark equals the current mark.
- * Rather than traverse the code array, marking each item, 'cur_mark' is
- * incremented.  This automatically makes each element unmarked.
- */
-static int cur_mark;
-#define isMarked(p) ((p)->mark == cur_mark)
-#define unMarkAll() cur_mark += 1
-#define Mark(p) ((p)->mark = cur_mark)
-
-static void opt_init(struct block *);
-static void opt_cleanup(void);
-
-static void make_marks(struct block *);
-static void mark_code(struct block *);
-
-static void intern_blocks(struct block *);
-
-static int eq_slist(struct slist *, struct slist *);
-
-static void find_levels_r(struct block *);
-
-static void find_levels(struct block *);
-static void find_dom(struct block *);
-static void propedom(struct edge *);
-static void find_edom(struct block *);
-static void find_closure(struct block *);
-static int atomuse(struct stmt *);
-static int atomdef(struct stmt *);
-static void compute_local_ud(struct block *);
-static void find_ud(struct block *);
-static void init_val(void);
-static long F(int, long, long);
-static inline void vstore(struct stmt *, long *, long, int);
-static void opt_blk(struct block *, int);
-static int use_conflict(struct block *, struct block *);
-static void opt_j(struct edge *);
-static void or_pullup(struct block *);
-static void and_pullup(struct block *);
-static void opt_blks(struct block *, int);
-static inline void link_inedge(struct edge *, struct block *);
-static void find_inedges(struct block *);
-static void opt_root(struct block **);
-static void opt_loop(struct block *, int);
-static void fold_op(struct stmt *, long, long);
-static inline struct slist *this_op(struct slist *);
-static void opt_not(struct block *);
-static void opt_peep(struct block *);
-static void opt_stmt(struct stmt *, long[], int);
-static void deadstmt(struct stmt *, struct stmt *[]);
-static void opt_deadstores(struct block *);
-static void opt_blk(struct block *, int);
-static int use_conflict(struct block *, struct block *);
-static void opt_j(struct edge *);
-static struct block *fold_edge(struct block *, struct edge *);
-static inline int eq_blk(struct block *, struct block *);
-static int slength(struct slist *);
-static int count_blocks(struct block *);
-static void number_blks_r(struct block *);
-static int count_stmts(struct block *);
-static void convert_code_r(struct block *);
-
-static int n_blocks;
-struct block **blocks;
-static int n_edges;
-struct edge **edges;
-
-/*
- * A bit vector set representation of the dominators.
- * We round up the set size to the next power of two.
- */
-static int nodewords;
-static int edgewords;
-struct block **levels;
-u_long *space;
-#define BITS_PER_WORD (8*sizeof(u_long))
-/*
- * True if a is in uset {p}
- */
-#define SET_MEMBER(p, a) \
-((p)[(unsigned)(a) / BITS_PER_WORD] & (1 << ((unsigned)(a) % BITS_PER_WORD)))
-
-/*
- * Add 'a' to uset p.
- */
-#define SET_INSERT(p, a) \
-(p)[(unsigned)(a) / BITS_PER_WORD] |= (1 << ((unsigned)(a) % BITS_PER_WORD))
-
-/*
- * Delete 'a' from uset p.
- */
-#define SET_DELETE(p, a) \
-(p)[(unsigned)(a) / BITS_PER_WORD] &= ~(1 << ((unsigned)(a) % BITS_PER_WORD))
-
-/*
- * a := a intersect b
- */
-#define SET_INTERSECT(a, b, n)\
-{\
-	register u_long *_x = a, *_y = b;\
-	register int _n = n;\
-	while (--_n >= 0) *_x++ &= *_y++;\
-}
-
-/*
- * a := a - b
- */
-#define SET_SUBTRACT(a, b, n)\
-{\
-	register u_long *_x = a, *_y = b;\
-	register int _n = n;\
-	while (--_n >= 0) *_x++ &=~ *_y++;\
-}
-
-/*
- * a := a union b
- */
-#define SET_UNION(a, b, n)\
-{\
-	register u_long *_x = a, *_y = b;\
-	register int _n = n;\
-	while (--_n >= 0) *_x++ |= *_y++;\
-}
-
-static uset all_dom_sets;
-static uset all_closure_sets;
-static uset all_edge_sets;
-
-#ifndef MAX
-#define MAX(a,b) ((a)>(b)?(a):(b))
-#endif
-
-static void
-find_levels_r(b)
-	struct block *b;
-{
-	int level;
-
-	if (isMarked(b))
-		return;
-
-	Mark(b);
-	b->link = 0;
-
-	if (JT(b)) {
-		find_levels_r(JT(b));
-		find_levels_r(JF(b));
-		level = MAX(JT(b)->level, JF(b)->level) + 1;
-	} else
-		level = 0;
-	b->level = level;
-	b->link = levels[level];
-	levels[level] = b;
-}
-
-/*
- * Level graph.  The levels go from 0 at the leaves to
- * N_LEVELS at the root.  The levels[] array points to the
- * first node of the level list, whose elements are linked
- * with the 'link' field of the struct block.
- */
-static void
-find_levels(root)
-	struct block *root;
-{
-	memset((char *)levels, 0, n_blocks * sizeof(*levels));
-	unMarkAll();
-	find_levels_r(root);
-}
-
-/*
- * Find dominator relationships.
- * Assumes graph has been leveled.
- */
-static void
-find_dom(root)
-	struct block *root;
-{
-	int i;
-	struct block *b;
-	u_long *x;
-
-	/*
-	 * Initialize sets to contain all nodes.
-	 */
-	x = all_dom_sets;
-	i = n_blocks * nodewords;
-	while (--i >= 0)
-		*x++ = ~0;
-	/* Root starts off empty. */
-	for (i = nodewords; --i >= 0;)
-		root->dom[i] = 0;
-
-	/* root->level is the highest level no found. */
-	for (i = root->level; i >= 0; --i) {
-		for (b = levels[i]; b; b = b->link) {
-			SET_INSERT(b->dom, b->id);
-			if (JT(b) == 0)
-				continue;
-			SET_INTERSECT(JT(b)->dom, b->dom, nodewords);
-			SET_INTERSECT(JF(b)->dom, b->dom, nodewords);
-		}
-	}
-}
-
-static void
-propedom(ep)
-	struct edge *ep;
-{
-	SET_INSERT(ep->edom, ep->id);
-	if (ep->succ) {
-		SET_INTERSECT(ep->succ->et.edom, ep->edom, edgewords);
-		SET_INTERSECT(ep->succ->ef.edom, ep->edom, edgewords);
-	}
-}
-
-/*
- * Compute edge dominators.
- * Assumes graph has been leveled and predecessors established.
- */
-static void
-find_edom(root)
-	struct block *root;
-{
-	int i;
-	uset x;
-	struct block *b;
-
-	x = all_edge_sets;
-	for (i = n_edges * edgewords; --i >= 0; )
-		x[i] = ~0;
-
-	/* root->level is the highest level no found. */
-	memset(root->et.edom, 0, edgewords * sizeof(*(uset)0));
-	memset(root->ef.edom, 0, edgewords * sizeof(*(uset)0));
-	for (i = root->level; i >= 0; --i) {
-		for (b = levels[i]; b != 0; b = b->link) {
-			propedom(&b->et);
-			propedom(&b->ef);
-		}
-	}
-}
-
-/*
- * Find the backwards transitive closure of the flow graph.  These sets
- * are backwards in the sense that we find the set of nodes that reach
- * a given node, not the set of nodes that can be reached by a node.
- *
- * Assumes graph has been leveled.
- */
-static void
-find_closure(root)
-	struct block *root;
-{
-	int i;
-	struct block *b;
-
-	/*
-	 * Initialize sets to contain no nodes.
-	 */
-	memset((char *)all_closure_sets, 0,
-	      n_blocks * nodewords * sizeof(*all_closure_sets));
-
-	/* root->level is the highest level no found. */
-	for (i = root->level; i >= 0; --i) {
-		for (b = levels[i]; b; b = b->link) {
-			SET_INSERT(b->closure, b->id);
-			if (JT(b) == 0)
-				continue;
-			SET_UNION(JT(b)->closure, b->closure, nodewords);
-			SET_UNION(JF(b)->closure, b->closure, nodewords);
-		}
-	}
-}
-
-/*
- * Return the register number that is used by s.  If A and X are both
- * used, return AX_ATOM.  If no register is used, return -1.
- *
- * The implementation should probably change to an array access.
- */
-static int
-atomuse(s)
-	struct stmt *s;
-{
-	register int c = s->code;
-
-	if (c == NOP)
-		return -1;
-
-	switch (BPF_CLASS(c)) {
-
-	case BPF_RET:
-		return (BPF_RVAL(c) == BPF_A) ? A_ATOM :
-			(BPF_RVAL(c) == BPF_X) ? X_ATOM : -1;
-
-	case BPF_LD:
-	case BPF_LDX:
-		return (BPF_MODE(c) == BPF_IND) ? X_ATOM :
-			(BPF_MODE(c) == BPF_MEM) ? s->k : -1;
-
-	case BPF_ST:
-		return A_ATOM;
-
-	case BPF_STX:
-		return X_ATOM;
-
-	case BPF_JMP:
-	case BPF_ALU:
-		if (BPF_SRC(c) == BPF_X)
-			return AX_ATOM;
-		return A_ATOM;
-
-	case BPF_MISC:
-		return BPF_MISCOP(c) == BPF_TXA ? X_ATOM : A_ATOM;
-	}
-	abort();
-	/* NOTREACHED */
-}
-
-/*
- * Return the register number that is defined by 's'.  We assume that
- * a single stmt cannot define more than one register.  If no register
- * is defined, return -1.
- *
- * The implementation should probably change to an array access.
- */
-static int
-atomdef(s)
-	struct stmt *s;
-{
-	if (s->code == NOP)
-		return -1;
-
-	switch (BPF_CLASS(s->code)) {
-
-	case BPF_LD:
-	case BPF_ALU:
-		return A_ATOM;
-
-	case BPF_LDX:
-		return X_ATOM;
-
-	case BPF_ST:
-	case BPF_STX:
-		return s->k;
-
-	case BPF_MISC:
-		return BPF_MISCOP(s->code) == BPF_TAX ? X_ATOM : A_ATOM;
-	}
-	return -1;
-}
-
-static void
-compute_local_ud(b)
-	struct block *b;
-{
-	struct slist *s;
-	atomset def = 0, use = 0, kill = 0;
-	int atom;
-
-	for (s = b->stmts; s; s = s->next) {
-		if (s->s.code == NOP)
-			continue;
-		atom = atomuse(&s->s);
-		if (atom >= 0) {
-			if (atom == AX_ATOM) {
-				if (!ATOMELEM(def, X_ATOM))
-					use |= ATOMMASK(X_ATOM);
-				if (!ATOMELEM(def, A_ATOM))
-					use |= ATOMMASK(A_ATOM);
-			}
-			else if (atom < N_ATOMS) {
-				if (!ATOMELEM(def, atom))
-					use |= ATOMMASK(atom);
-			}
-			else
-				abort();
-		}
-		atom = atomdef(&s->s);
-		if (atom >= 0) {
-			if (!ATOMELEM(use, atom))
-				kill |= ATOMMASK(atom);
-			def |= ATOMMASK(atom);
-		}
-	}
-	if (!ATOMELEM(def, A_ATOM) && BPF_CLASS(b->s.code) == BPF_JMP)
-		use |= ATOMMASK(A_ATOM);
-
-	b->def = def;
-	b->kill = kill;
-	b->in_use = use;
-}
-
-/*
- * Assume graph is already leveled.
- */
-static void
-find_ud(root)
-	struct block *root;
-{
-	int i, maxlevel;
-	struct block *p;
-
-	/*
-	 * root->level is the highest level no found;
-	 * count down from there.
-	 */
-	maxlevel = root->level;
-	for (i = maxlevel; i >= 0; --i)
-		for (p = levels[i]; p; p = p->link) {
-			compute_local_ud(p);
-			p->out_use = 0;
-		}
-
-	for (i = 1; i <= maxlevel; ++i) {
-		for (p = levels[i]; p; p = p->link) {
-			p->out_use |= JT(p)->in_use | JF(p)->in_use;
-			p->in_use |= p->out_use &~ p->kill;
-		}
-	}
-}
-
-/*
- * These data structures are used in a Cocke and Shwarz style
- * value numbering scheme.  Since the flowgraph is acyclic,
- * exit values can be propagated from a node's predecessors
- * provided it is uniquely defined.
- */
-struct valnode {
-	int code;
-	long v0, v1;
-	long val;
-	struct valnode *next;
-};
-
-#define MODULUS 213
-static struct valnode *hashtbl[MODULUS];
-static int curval;
-static int maxval;
-
-/* Integer constants mapped with the load immediate opcode. */
-#define K(i) F(BPF_LD|BPF_IMM|BPF_W, i, 0L)
-
-struct vmapinfo {
-	int is_const;
-	long const_val;
-};
-
-struct vmapinfo *vmap;
-struct valnode *vnode_base;
-struct valnode *next_vnode;
-
-static void
-init_val()
-{
-	curval = 0;
-	next_vnode = vnode_base;
-	memset((char *)vmap, 0, maxval * sizeof(*vmap));
-	memset((char *)hashtbl, 0, sizeof hashtbl);
-}
-
-/* Because we really don't have an IR, this stuff is a little messy. */
-static long
-F(code, v0, v1)
-	int code;
-	long v0, v1;
-{
-	u_int hash;
-	int val;
-	struct valnode *p;
-
-	hash = (u_int)code ^ (v0 << 4) ^ (v1 << 8);
-	hash %= MODULUS;
-
-	for (p = hashtbl[hash]; p; p = p->next)
-		if (p->code == code && p->v0 == v0 && p->v1 == v1)
-			return p->val;
-
-	val = ++curval;
-	if (BPF_MODE(code) == BPF_IMM &&
-	    (BPF_CLASS(code) == BPF_LD || BPF_CLASS(code) == BPF_LDX)) {
-		vmap[val].const_val = v0;
-		vmap[val].is_const = 1;
-	}
-	p = next_vnode++;
-	p->val = val;
-	p->code = code;
-	p->v0 = v0;
-	p->v1 = v1;
-	p->next = hashtbl[hash];
-	hashtbl[hash] = p;
-
-	return val;
-}
-
-static inline void
-vstore(s, valp, newval, alter)
-	struct stmt *s;
-	long *valp;
-	long newval;
-	int alter;
-{
-	if (alter && *valp == newval)
-		s->code = NOP;
-	else
-		*valp = newval;
-}
-
-static void
-fold_op(s, v0, v1)
-	struct stmt *s;
-	long v0, v1;
-{
-	long a, b;
-
-	a = vmap[v0].const_val;
-	b = vmap[v1].const_val;
-
-	switch (BPF_OP(s->code)) {
-	case BPF_ADD:
-		a += b;
-		break;
-
-	case BPF_SUB:
-		a -= b;
-		break;
-
-	case BPF_MUL:
-		a *= b;
-		break;
-
-	case BPF_DIV:
-		if (b == 0)
-			bpf_error("division by zero");
-		a /= b;
-		break;
-
-	case BPF_AND:
-		a &= b;
-		break;
-
-	case BPF_OR:
-		a |= b;
-		break;
-
-	case BPF_LSH:
-		a <<= b;
-		break;
-
-	case BPF_RSH:
-		a >>= b;
-		break;
-
-	case BPF_NEG:
-		a = -a;
-		break;
-
-	default:
-		abort();
-	}
-	s->k = a;
-	s->code = BPF_LD|BPF_IMM;
-	done = 0;
-}
-
-static inline struct slist *
-this_op(s)
-	struct slist *s;
-{
-	while (s != 0 && s->s.code == NOP)
-		s = s->next;
-	return s;
-}
-
-static void
-opt_not(b)
-	struct block *b;
-{
-	struct block *tmp = JT(b);
-
-	JT(b) = JF(b);
-	JF(b) = tmp;
-}
-
-static void
-opt_peep(b)
-	struct block *b;
-{
-	struct slist *s;
-	struct slist *next, *last;
-	int val;
-	long v;
-
-	s = b->stmts;
-	if (s == 0)
-		return;
-
-	last = s;
-	while (1) {
-		s = this_op(s);
-		if (s == 0)
-			break;
-		next = this_op(s->next);
-		if (next == 0)
-			break;
-		last = next;
-
-		/*
-		 * st  M[k]	-->	st  M[k]
-		 * ldx M[k]		tax
-		 */
-		if (s->s.code == BPF_ST &&
-		    next->s.code == (BPF_LDX|BPF_MEM) &&
-		    s->s.k == next->s.k) {
-			done = 0;
-			next->s.code = BPF_MISC|BPF_TAX;
-		}
-		/*
-		 * ld  #k	-->	ldx  #k
-		 * tax			txa
-		 */
-		if (s->s.code == (BPF_LD|BPF_IMM) &&
-		    next->s.code == (BPF_MISC|BPF_TAX)) {
-			s->s.code = BPF_LDX|BPF_IMM;
-			next->s.code = BPF_MISC|BPF_TXA;
-			done = 0;
-		}
-		/*
-		 * This is an ugly special case, but it happens
-		 * when you say tcp[k] or udp[k] where k is a constant.
-		 */
-		if (s->s.code == (BPF_LD|BPF_IMM)) {
-			struct slist *add, *tax, *ild;
-
-			/*
-			 * Check that X isn't used on exit from this
-			 * block (which the optimizer might cause).
-			 * We know the code generator won't generate
-			 * any local dependencies.
-			 */
-			if (ATOMELEM(b->out_use, X_ATOM))
-				break;
-
-			if (next->s.code != (BPF_LDX|BPF_MSH|BPF_B))
-				add = next;
-			else
-				add = this_op(next->next);
-			if (add == 0 || add->s.code != (BPF_ALU|BPF_ADD|BPF_X))
-				break;
-
-			tax = this_op(add->next);
-			if (tax == 0 || tax->s.code != (BPF_MISC|BPF_TAX))
-				break;
-
-			ild = this_op(tax->next);
-			if (ild == 0 || BPF_CLASS(ild->s.code) != BPF_LD ||
-			    BPF_MODE(ild->s.code) != BPF_IND)
-				break;
-			/*
-			 * XXX We need to check that X is not
-			 * subsequently used.  We know we can eliminate the
-			 * accumulator modifications since it is defined
-			 * by the last stmt of this sequence.
-			 *
-			 * We want to turn this sequence:
-			 *
-			 * (004) ldi     #0x2		{s}
-			 * (005) ldxms   [14]		{next}  -- optional
-			 * (006) addx			{add}
-			 * (007) tax			{tax}
-			 * (008) ild     [x+0]		{ild}
-			 *
-			 * into this sequence:
-			 *
-			 * (004) nop
-			 * (005) ldxms   [14]
-			 * (006) nop
-			 * (007) nop
-			 * (008) ild     [x+2]
-			 *
-			 */
-			ild->s.k += s->s.k;
-			s->s.code = NOP;
-			add->s.code = NOP;
-			tax->s.code = NOP;
-			done = 0;
-		}
-		s = next;
-	}
-	/*
-	 * If we have a subtract to do a comparison, and the X register
-	 * is a known constant, we can merge this value into the
-	 * comparison.
-	 */
-	if (last->s.code == (BPF_ALU|BPF_SUB|BPF_X) &&
-	    !ATOMELEM(b->out_use, A_ATOM)) {
-		val = b->val[X_ATOM];
-		if (vmap[val].is_const) {
-			b->s.k += vmap[val].const_val;
-			last->s.code = NOP;
-			done = 0;
-		} else if (b->s.k == 0) {
-			/*
-			 * sub x  ->	nop
-			 * j  #0	j  x
-			 */
-			last->s.code = NOP;
-			b->s.code = BPF_CLASS(b->s.code) | BPF_OP(b->s.code) |
-				BPF_X;
-			done = 0;
-		}
-	}
-	/*
-	 * Likewise, a constant subtract can be simplified.
-	 */
-	else if (last->s.code == (BPF_ALU|BPF_SUB|BPF_K) &&
-		 !ATOMELEM(b->out_use, A_ATOM)) {
-		b->s.k += last->s.k;
-		last->s.code = NOP;
-		done = 0;
-	}
-	/*
-	 * and #k	nop
-	 * jeq #0  ->	jset #k
-	 */
-	if (last->s.code == (BPF_ALU|BPF_AND|BPF_K) &&
-	    !ATOMELEM(b->out_use, A_ATOM) && b->s.k == 0) {
-		b->s.k = last->s.k;
-		b->s.code = BPF_JMP|BPF_K|BPF_JSET;
-		last->s.code = NOP;
-		done = 0;
-		opt_not(b);
-	}
-	/*
-	 * If the accumulator is a known constant, we can compute the
-	 * comparison result.
-	 */
-	val = b->val[A_ATOM];
-	if (vmap[val].is_const && BPF_SRC(b->s.code) == BPF_K) {
-		v = vmap[val].const_val;
-		switch (BPF_OP(b->s.code)) {
-
-		case BPF_JEQ:
-			v = v == b->s.k;
-			break;
-
-		case BPF_JGT:
-			v = v > b->s.k;
-			break;
-
-		case BPF_JGE:
-			v = v >= b->s.k;
-			break;
-
-		case BPF_JSET:
-			v &= b->s.k;
-			break;
-
-		default:
-			abort();
-		}
-		if (JF(b) != JT(b))
-			done = 0;
-		if (v)
-			JF(b) = JT(b);
-		else
-			JT(b) = JF(b);
-	}
-}
-
-/*
- * Compute the symbolic value of expression of 's', and update
- * anything it defines in the value table 'val'.  If 'alter' is true,
- * do various optimizations.  This code would be cleaner if symbolic
- * evaluation and code transformations weren't folded together.
- */
-static void
-opt_stmt(s, val, alter)
-	struct stmt *s;
-	long val[];
-	int alter;
-{
-	int op;
-	long v;
-
-	switch (s->code) {
-
-	case BPF_LD|BPF_ABS|BPF_W:
-	case BPF_LD|BPF_ABS|BPF_H:
-	case BPF_LD|BPF_ABS|BPF_B:
-		v = F(s->code, s->k, 0L);
-		vstore(s, &val[A_ATOM], v, alter);
-		break;
-
-	case BPF_LD|BPF_IND|BPF_W:
-	case BPF_LD|BPF_IND|BPF_H:
-	case BPF_LD|BPF_IND|BPF_B:
-		v = val[X_ATOM];
-		if (alter && vmap[v].is_const) {
-			s->code = BPF_LD|BPF_ABS|BPF_SIZE(s->code);
-			s->k += vmap[v].const_val;
-			v = F(s->code, s->k, 0L);
-			done = 0;
-		}
-		else
-			v = F(s->code, s->k, v);
-		vstore(s, &val[A_ATOM], v, alter);
-		break;
-
-	case BPF_LD|BPF_LEN:
-		v = F(s->code, 0L, 0L);
-		vstore(s, &val[A_ATOM], v, alter);
-		break;
-
-	case BPF_LD|BPF_IMM:
-		v = K(s->k);
-		vstore(s, &val[A_ATOM], v, alter);
-		break;
-
-	case BPF_LDX|BPF_IMM:
-		v = K(s->k);
-		vstore(s, &val[X_ATOM], v, alter);
-		break;
-
-	case BPF_LDX|BPF_MSH|BPF_B:
-		v = F(s->code, s->k, 0L);
-		vstore(s, &val[X_ATOM], v, alter);
-		break;
-
-	case BPF_ALU|BPF_NEG:
-		if (alter && vmap[val[A_ATOM]].is_const) {
-			s->code = BPF_LD|BPF_IMM;
-			s->k = -vmap[val[A_ATOM]].const_val;
-			val[A_ATOM] = K(s->k);
-		}
-		else
-			val[A_ATOM] = F(s->code, val[A_ATOM], 0L);
-		break;
-
-	case BPF_ALU|BPF_ADD|BPF_K:
-	case BPF_ALU|BPF_SUB|BPF_K:
-	case BPF_ALU|BPF_MUL|BPF_K:
-	case BPF_ALU|BPF_DIV|BPF_K:
-	case BPF_ALU|BPF_AND|BPF_K:
-	case BPF_ALU|BPF_OR|BPF_K:
-	case BPF_ALU|BPF_LSH|BPF_K:
-	case BPF_ALU|BPF_RSH|BPF_K:
-		op = BPF_OP(s->code);
-		if (alter) {
-			if (s->k == 0) {
-				if (op == BPF_ADD || op == BPF_SUB ||
-				    op == BPF_LSH || op == BPF_RSH ||
-				    op == BPF_OR) {
-					s->code = NOP;
-					break;
-				}
-				if (op == BPF_MUL || op == BPF_AND) {
-					s->code = BPF_LD|BPF_IMM;
-					val[A_ATOM] = K(s->k);
-					break;
-				}
-			}
-			if (vmap[val[A_ATOM]].is_const) {
-				fold_op(s, val[A_ATOM], K(s->k));
-				val[A_ATOM] = K(s->k);
-				break;
-			}
-		}
-		val[A_ATOM] = F(s->code, val[A_ATOM], K(s->k));
-		break;
-
-	case BPF_ALU|BPF_ADD|BPF_X:
-	case BPF_ALU|BPF_SUB|BPF_X:
-	case BPF_ALU|BPF_MUL|BPF_X:
-	case BPF_ALU|BPF_DIV|BPF_X:
-	case BPF_ALU|BPF_AND|BPF_X:
-	case BPF_ALU|BPF_OR|BPF_X:
-	case BPF_ALU|BPF_LSH|BPF_X:
-	case BPF_ALU|BPF_RSH|BPF_X:
-		op = BPF_OP(s->code);
-		if (alter && vmap[val[X_ATOM]].is_const) {
-			if (vmap[val[A_ATOM]].is_const) {
-				fold_op(s, val[A_ATOM], val[X_ATOM]);
-				val[A_ATOM] = K(s->k);
-			}
-			else {
-				s->code = BPF_ALU|BPF_K|op;
-				s->k = vmap[val[X_ATOM]].const_val;
-				done = 0;
-				val[A_ATOM] =
-					F(s->code, val[A_ATOM], K(s->k));
-			}
-			break;
-		}
-		/*
-		 * Check if we're doing something to an accumulator
-		 * that is 0, and simplify.  This may not seem like
-		 * much of a simplification but it could open up further
-		 * optimizations.
-		 * XXX We could also check for mul by 1, and -1, etc.
-		 */
-		if (alter && vmap[val[A_ATOM]].is_const
-		    && vmap[val[A_ATOM]].const_val == 0) {
-			if (op == BPF_ADD || op == BPF_OR ||
-			    op == BPF_LSH || op == BPF_RSH || op == BPF_SUB) {
-				s->code = BPF_MISC|BPF_TXA;
-				vstore(s, &val[A_ATOM], val[X_ATOM], alter);
-				break;
-			}
-			else if (op == BPF_MUL || op == BPF_DIV ||
-				 op == BPF_AND) {
-				s->code = BPF_LD|BPF_IMM;
-				s->k = 0;
-				vstore(s, &val[A_ATOM], K(s->k), alter);
-				break;
-			}
-			else if (op == BPF_NEG) {
-				s->code = NOP;
-				break;
-			}
-		}
-		val[A_ATOM] = F(s->code, val[A_ATOM], val[X_ATOM]);
-		break;
-
-	case BPF_MISC|BPF_TXA:
-		vstore(s, &val[A_ATOM], val[X_ATOM], alter);
-		break;
-
-	case BPF_LD|BPF_MEM:
-		v = val[s->k];
-		if (alter && vmap[v].is_const) {
-			s->code = BPF_LD|BPF_IMM;
-			s->k = vmap[v].const_val;
-			done = 0;
-		}
-		vstore(s, &val[A_ATOM], v, alter);
-		break;
-
-	case BPF_MISC|BPF_TAX:
-		vstore(s, &val[X_ATOM], val[A_ATOM], alter);
-		break;
-
-	case BPF_LDX|BPF_MEM:
-		v = val[s->k];
-		if (alter && vmap[v].is_const) {
-			s->code = BPF_LDX|BPF_IMM;
-			s->k = vmap[v].const_val;
-			done = 0;
-		}
-		vstore(s, &val[X_ATOM], v, alter);
-		break;
-
-	case BPF_ST:
-		vstore(s, &val[s->k], val[A_ATOM], alter);
-		break;
-
-	case BPF_STX:
-		vstore(s, &val[s->k], val[X_ATOM], alter);
-		break;
-	}
-}
-
-static void
-deadstmt(s, last)
-	register struct stmt *s;
-	register struct stmt *last[];
-{
-	register int atom;
-
-	atom = atomuse(s);
-	if (atom >= 0) {
-		if (atom == AX_ATOM) {
-			last[X_ATOM] = 0;
-			last[A_ATOM] = 0;
-		}
-		else
-			last[atom] = 0;
-	}
-	atom = atomdef(s);
-	if (atom >= 0) {
-		if (last[atom]) {
-			done = 0;
-			last[atom]->code = NOP;
-		}
-		last[atom] = s;
-	}
-}
-
-static void
-opt_deadstores(b)
-	register struct block *b;
-{
-	register struct slist *s;
-	register int atom;
-	struct stmt *last[N_ATOMS];
-
-	memset((char *)last, 0, sizeof last);
-
-	for (s = b->stmts; s != 0; s = s->next)
-		deadstmt(&s->s, last);
-	deadstmt(&b->s, last);
-
-	for (atom = 0; atom < N_ATOMS; ++atom)
-		if (last[atom] && !ATOMELEM(b->out_use, atom)) {
-			last[atom]->code = NOP;
-			done = 0;
-		}
-}
-
-static void
-opt_blk(b, do_stmts)
-	struct block *b;
-	int do_stmts;
-{
-	struct slist *s;
-	struct edge *p;
-	int i;
-	long aval;
-
-	/*
-	 * Initialize the atom values.
-	 * If we have no predecessors, everything is undefined.
-	 * Otherwise, we inherent our values from our predecessors.
-	 * If any register has an ambiguous value (i.e. control paths are
-	 * merging) give it the undefined value of 0.
-	 */
-	p = b->in_edges;
-	if (p == 0)
-		memset((char *)b->val, 0, sizeof(b->val));
-	else {
-		memcpy((char *)b->val, (char *)p->pred->val, sizeof(b->val));
-		while ((p = p->next) != NULL) {
-			for (i = 0; i < N_ATOMS; ++i)
-				if (b->val[i] != p->pred->val[i])
-					b->val[i] = 0;
-		}
-	}
-	aval = b->val[A_ATOM];
-	for (s = b->stmts; s; s = s->next)
-		opt_stmt(&s->s, b->val, do_stmts);
-
-	/*
-	 * This is a special case: if we don't use anything from this
-	 * block, and we load the accumulator with value that is
-	 * already there, eliminate all the statements.
-	 */
-	if (do_stmts && b->out_use == 0 && aval != 0 &&
-	    b->val[A_ATOM] == aval)
-		b->stmts = 0;
-	else {
-		opt_peep(b);
-		opt_deadstores(b);
-	}
-	/*
-	 * Set up values for branch optimizer.
-	 */
-	if (BPF_SRC(b->s.code) == BPF_K)
-		b->oval = K(b->s.k);
-	else
-		b->oval = b->val[X_ATOM];
-	b->et.code = b->s.code;
-	b->ef.code = -b->s.code;
-}
-
-/*
- * Return true if any register that is used on exit from 'succ', has
- * an exit value that is different from the corresponding exit value
- * from 'b'.
- */
-static int
-use_conflict(b, succ)
-	struct block *b, *succ;
-{
-	int atom;
-	atomset use = succ->out_use;
-
-	if (use == 0)
-		return 0;
-
-	for (atom = 0; atom < N_ATOMS; ++atom)
-		if (ATOMELEM(use, atom))
-			if (b->val[atom] != succ->val[atom])
-				return 1;
-	return 0;
-}
-
-static struct block *
-fold_edge(child, ep)
-	struct block *child;
-	struct edge *ep;
-{
-	int sense;
-	int aval0, aval1, oval0, oval1;
-	int code = ep->code;
-
-	if (code < 0) {
-		code = -code;
-		sense = 0;
-	} else
-		sense = 1;
-
-	if (child->s.code != code)
-		return 0;
-
-	aval0 = child->val[A_ATOM];
-	oval0 = child->oval;
-	aval1 = ep->pred->val[A_ATOM];
-	oval1 = ep->pred->oval;
-
-	if (aval0 != aval1)
-		return 0;
-
-	if (oval0 == oval1)
-		/*
-		 * The operands are identical, so the
-		 * result is true if a true branch was
-		 * taken to get here, otherwise false.
-		 */
-		return sense ? JT(child) : JF(child);
-
-	if (sense && code == (BPF_JMP|BPF_JEQ|BPF_K))
-		/*
-		 * At this point, we only know the comparison if we
-		 * came down the true branch, and it was an equality
-		 * comparison with a constant.  We rely on the fact that
-		 * distinct constants have distinct value numbers.
-		 */
-		return JF(child);
-
-	return 0;
-}
-
-static void
-opt_j(ep)
-	struct edge *ep;
-{
-	register int i, k;
-	register struct block *target;
-
-	if (JT(ep->succ) == 0)
-		return;
-
-	if (JT(ep->succ) == JF(ep->succ)) {
-		/*
-		 * Common branch targets can be eliminated, provided
-		 * there is no data dependency.
-		 */
-		if (!use_conflict(ep->pred, ep->succ->et.succ)) {
-			done = 0;
-			ep->succ = JT(ep->succ);
-		}
-	}
-	/*
-	 * For each edge dominator that matches the successor of this
-	 * edge, promote the edge successor to the its grandchild.
-	 *
-	 * XXX We violate the set abstraction here in favor a reasonably
-	 * efficient loop.
-	 */
- top:
-	for (i = 0; i < edgewords; ++i) {
-		register u_long x = ep->edom[i];
-
-		while (x != 0) {
-			k = ffs(x) - 1;
-			x &=~ (1 << k);
-			k += i * BITS_PER_WORD;
-
-			target = fold_edge(ep->succ, edges[k]);
-			/*
-			 * Check that there is no data dependency between
-			 * nodes that will be violated if we move the edge.
-			 */
-			if (target != 0 && !use_conflict(ep->pred, target)) {
-				done = 0;
-				ep->succ = target;
-				if (JT(target) != 0)
-					/*
-					 * Start over unless we hit a leaf.
-					 */
-					goto top;
-				return;
-			}
-		}
-	}
-}
-
-
-static void
-or_pullup(b)
-	struct block *b;
-{
-	int val, at_top;
-	struct block *pull;
-	struct block **diffp, **samep;
-	struct edge *ep;
-
-	ep = b->in_edges;
-	if (ep == 0)
-		return;
-
-	/*
-	 * Make sure each predecessor loads the same value.
-	 * XXX why?
-	 */
-	val = ep->pred->val[A_ATOM];
-	for (ep = ep->next; ep != 0; ep = ep->next)
-		if (val != ep->pred->val[A_ATOM])
-			return;
-
-	if (JT(b->in_edges->pred) == b)
-		diffp = &JT(b->in_edges->pred);
-	else
-		diffp = &JF(b->in_edges->pred);
-
-	at_top = 1;
-	while (1) {
-		if (*diffp == 0)
-			return;
-
-		if (JT(*diffp) != JT(b))
-			return;
-
-		if (!SET_MEMBER((*diffp)->dom, b->id))
-			return;
-
-		if ((*diffp)->val[A_ATOM] != val)
-			break;
-
-		diffp = &JF(*diffp);
-		at_top = 0;
-	}
-	samep = &JF(*diffp);
-	while (1) {
-		if (*samep == 0)
-			return;
-
-		if (JT(*samep) != JT(b))
-			return;
-
-		if (!SET_MEMBER((*samep)->dom, b->id))
-			return;
-
-		if ((*samep)->val[A_ATOM] == val)
-			break;
-
-		/* XXX Need to check that there are no data dependencies
-		   between dp0 and dp1.  Currently, the code generator
-		   will not produce such dependencies. */
-		samep = &JF(*samep);
-	}
-#ifdef notdef
-	/* XXX This doesn't cover everything. */
-	for (i = 0; i < N_ATOMS; ++i)
-		if ((*samep)->val[i] != pred->val[i])
-			return;
-#endif
-	/* Pull up the node. */
-	pull = *samep;
-	*samep = JF(pull);
-	JF(pull) = *diffp;
-
-	/*
-	 * At the top of the chain, each predecessor needs to point at the
-	 * pulled up node.  Inside the chain, there is only one predecessor
-	 * to worry about.
-	 */
-	if (at_top) {
-		for (ep = b->in_edges; ep != 0; ep = ep->next) {
-			if (JT(ep->pred) == b)
-				JT(ep->pred) = pull;
-			else
-				JF(ep->pred) = pull;
-		}
-	}
-	else
-		*diffp = pull;
-
-	done = 0;
-}
-
-static void
-and_pullup(b)
-	struct block *b;
-{
-	int val, at_top;
-	struct block *pull;
-	struct block **diffp, **samep;
-	struct edge *ep;
-
-	ep = b->in_edges;
-	if (ep == 0)
-		return;
-
-	/*
-	 * Make sure each predecessor loads the same value.
-	 */
-	val = ep->pred->val[A_ATOM];
-	for (ep = ep->next; ep != 0; ep = ep->next)
-		if (val != ep->pred->val[A_ATOM])
-			return;
-
-	if (JT(b->in_edges->pred) == b)
-		diffp = &JT(b->in_edges->pred);
-	else
-		diffp = &JF(b->in_edges->pred);
-
-	at_top = 1;
-	while (1) {
-		if (*diffp == 0)
-			return;
-
-		if (JF(*diffp) != JF(b))
-			return;
-
-		if (!SET_MEMBER((*diffp)->dom, b->id))
-			return;
-
-		if ((*diffp)->val[A_ATOM] != val)
-			break;
-
-		diffp = &JT(*diffp);
-		at_top = 0;
-	}
-	samep = &JT(*diffp);
-	while (1) {
-		if (*samep == 0)
-			return;
-
-		if (JF(*samep) != JF(b))
-			return;
-
-		if (!SET_MEMBER((*samep)->dom, b->id))
-			return;
-
-		if ((*samep)->val[A_ATOM] == val)
-			break;
-
-		/* XXX Need to check that there are no data dependencies
-		   between diffp and samep.  Currently, the code generator
-		   will not produce such dependencies. */
-		samep = &JT(*samep);
-	}
-#ifdef notdef
-	/* XXX This doesn't cover everything. */
-	for (i = 0; i < N_ATOMS; ++i)
-		if ((*samep)->val[i] != pred->val[i])
-			return;
-#endif
-	/* Pull up the node. */
-	pull = *samep;
-	*samep = JT(pull);
-	JT(pull) = *diffp;
-
-	/*
-	 * At the top of the chain, each predecessor needs to point at the
-	 * pulled up node.  Inside the chain, there is only one predecessor
-	 * to worry about.
-	 */
-	if (at_top) {
-		for (ep = b->in_edges; ep != 0; ep = ep->next) {
-			if (JT(ep->pred) == b)
-				JT(ep->pred) = pull;
-			else
-				JF(ep->pred) = pull;
-		}
-	}
-	else
-		*diffp = pull;
-
-	done = 0;
-}
-
-static void
-opt_blks(root, do_stmts)
-	struct block *root;
-	int do_stmts;
-{
-	int i, maxlevel;
-	struct block *p;
-
-	init_val();
-	maxlevel = root->level;
-	for (i = maxlevel; i >= 0; --i)
-		for (p = levels[i]; p; p = p->link)
-			opt_blk(p, do_stmts);
-
-	if (do_stmts)
-		/*
-		 * No point trying to move branches; it can't possibly
-		 * make a difference at this point.
-		 */
-		return;
-
-	for (i = 1; i <= maxlevel; ++i) {
-		for (p = levels[i]; p; p = p->link) {
-			opt_j(&p->et);
-			opt_j(&p->ef);
-		}
-	}
-	for (i = 1; i <= maxlevel; ++i) {
-		for (p = levels[i]; p; p = p->link) {
-			or_pullup(p);
-			and_pullup(p);
-		}
-	}
-}
-
-static inline void
-link_inedge(parent, child)
-	struct edge *parent;
-	struct block *child;
-{
-	parent->next = child->in_edges;
-	child->in_edges = parent;
-}
-
-static void
-find_inedges(root)
-	struct block *root;
-{
-	int i;
-	struct block *b;
-
-	for (i = 0; i < n_blocks; ++i)
-		blocks[i]->in_edges = 0;
-
-	/*
-	 * Traverse the graph, adding each edge to the predecessor
-	 * list of its successors.  Skip the leaves (i.e. level 0).
-	 */
-	for (i = root->level; i > 0; --i) {
-		for (b = levels[i]; b != 0; b = b->link) {
-			link_inedge(&b->et, JT(b));
-			link_inedge(&b->ef, JF(b));
-		}
-	}
-}
-
-static void
-opt_root(b)
-	struct block **b;
-{
-	struct slist *tmp, *s;
-
-	s = (*b)->stmts;
-	(*b)->stmts = 0;
-	while (BPF_CLASS((*b)->s.code) == BPF_JMP && JT(*b) == JF(*b))
-		*b = JT(*b);
-
-	tmp = (*b)->stmts;
-	if (tmp != 0)
-		sappend(s, tmp);
-	(*b)->stmts = s;
-}
-
-static void
-opt_loop(root, do_stmts)
-	struct block *root;
-	int do_stmts;
-{
-
-#ifdef BDEBUG
-	if (dflag > 1)
-		opt_dump(root);
-#endif
-	do {
-		done = 1;
-		find_levels(root);
-		find_dom(root);
-		find_closure(root);
-		find_inedges(root);
-		find_ud(root);
-		find_edom(root);
-		opt_blks(root, do_stmts);
-#ifdef BDEBUG
-		if (dflag > 1)
-			opt_dump(root);
-#endif
-	} while (!done);
-}
-
-/*
- * Optimize the filter code in its dag representation.
- */
-void
-bpf_optimize(rootp)
-	struct block **rootp;
-{
-	struct block *root;
-
-	root = *rootp;
-
-	opt_init(root);
-	opt_loop(root, 0);
-	opt_loop(root, 1);
-	intern_blocks(root);
-	opt_root(rootp);
-	opt_cleanup();
-}
-
-static void
-make_marks(p)
-	struct block *p;
-{
-	if (!isMarked(p)) {
-		Mark(p);
-		if (BPF_CLASS(p->s.code) != BPF_RET) {
-			make_marks(JT(p));
-			make_marks(JF(p));
-		}
-	}
-}
-
-/*
- * Mark code array such that isMarked(i) is true
- * only for nodes that are alive.
- */
-static void
-mark_code(p)
-	struct block *p;
-{
-	cur_mark += 1;
-	make_marks(p);
-}
-
-/*
- * True iff the two stmt lists load the same value from the packet into
- * the accumulator.
- */
-static int
-eq_slist(x, y)
-	struct slist *x, *y;
-{
-	while (1) {
-		while (x && x->s.code == NOP)
-			x = x->next;
-		while (y && y->s.code == NOP)
-			y = y->next;
-		if (x == 0)
-			return y == 0;
-		if (y == 0)
-			return x == 0;
-		if (x->s.code != y->s.code || x->s.k != y->s.k)
-			return 0;
-		x = x->next;
-		y = y->next;
-	}
-}
-
-static inline int
-eq_blk(b0, b1)
-	struct block *b0, *b1;
-{
-	if (b0->s.code == b1->s.code &&
-	    b0->s.k == b1->s.k &&
-	    b0->et.succ == b1->et.succ &&
-	    b0->ef.succ == b1->ef.succ)
-		return eq_slist(b0->stmts, b1->stmts);
-	return 0;
-}
-
-static void
-intern_blocks(root)
-	struct block *root;
-{
-	struct block *p;
-	int i, j;
-	int done;
- top:
-	done = 1;
-	for (i = 0; i < n_blocks; ++i)
-		blocks[i]->link = 0;
-
-	mark_code(root);
-
-	for (i = n_blocks - 1; --i >= 0; ) {
-		if (!isMarked(blocks[i]))
-			continue;
-		for (j = i + 1; j < n_blocks; ++j) {
-			if (!isMarked(blocks[j]))
-				continue;
-			if (eq_blk(blocks[i], blocks[j])) {
-				blocks[i]->link = blocks[j]->link ?
-					blocks[j]->link : blocks[j];
-				break;
-			}
-		}
-	}
-	for (i = 0; i < n_blocks; ++i) {
-		p = blocks[i];
-		if (JT(p) == 0)
-			continue;
-		if (JT(p)->link) {
-			done = 0;
-			JT(p) = JT(p)->link;
-		}
-		if (JF(p)->link) {
-			done = 0;
-			JF(p) = JF(p)->link;
-		}
-	}
-	if (!done)
-		goto top;
-}
-
-static void
-opt_cleanup()
-{
-	free((void *)vnode_base);
-	free((void *)vmap);
-	free((void *)edges);
-	free((void *)space);
-	free((void *)levels);
-	free((void *)blocks);
-}
-
-/*
- * Return the number of stmts in 's'.
- */
-static int
-slength(s)
-	struct slist *s;
-{
-	int n = 0;
-
-	for (; s; s = s->next)
-		if (s->s.code != NOP)
-			++n;
-	return n;
-}
-
-/*
- * Return the number of nodes reachable by 'p'.
- * All nodes should be initially unmarked.
- */
-static int
-count_blocks(p)
-	struct block *p;
-{
-	if (p == 0 || isMarked(p))
-		return 0;
-	Mark(p);
-	return count_blocks(JT(p)) + count_blocks(JF(p)) + 1;
-}
-
-/*
- * Do a depth first search on the flow graph, numbering the
- * the basic blocks, and entering them into the 'blocks' array.`
- */
-static void
-number_blks_r(p)
-	struct block *p;
-{
-	int n;
-
-	if (p == 0 || isMarked(p))
-		return;
-
-	Mark(p);
-	n = n_blocks++;
-	p->id = n;
-	blocks[n] = p;
-
-	number_blks_r(JT(p));
-	number_blks_r(JF(p));
-}
-
-/*
- * Return the number of stmts in the flowgraph reachable by 'p'.
- * The nodes should be unmarked before calling.
- */
-static int
-count_stmts(p)
-	struct block *p;
-{
-	int n;
-
-	if (p == 0 || isMarked(p))
-		return 0;
-	Mark(p);
-	n = count_stmts(JT(p)) + count_stmts(JF(p));
-	return slength(p->stmts) + n + 1;
-}
-
-/*
- * Allocate memory.  All allocation is done before optimization
- * is begun.  A linear bound on the size of all data structures is computed
- * from the total number of blocks and/or statements.
- */
-static void
-opt_init(root)
-	struct block *root;
-{
-	u_long *p;
-	int i, n, max_stmts;
-
-	/*
-	 * First, count the blocks, so we can malloc an array to map
-	 * block number to block.  Then, put the blocks into the array.
-	 */
-	unMarkAll();
-	n = count_blocks(root);
-	blocks = (struct block **)malloc(n * sizeof(*blocks));
-	unMarkAll();
-	n_blocks = 0;
-	number_blks_r(root);
-
-	n_edges = 2 * n_blocks;
-	edges = (struct edge **)malloc(n_edges * sizeof(*edges));
-
-	/*
-	 * The number of levels is bounded by the number of nodes.
-	 */
-	levels = (struct block **)malloc(n_blocks * sizeof(*levels));
-
-	edgewords = n_edges / (8 * sizeof(u_long)) + 1;
-	nodewords = n_blocks / (8 * sizeof(u_long)) + 1;
-
-	/* XXX */
-	space = (u_long *)malloc(2 * n_blocks * nodewords * sizeof(*space)
-				 + n_edges * edgewords * sizeof(*space));
-	p = space;
-	all_dom_sets = p;
-	for (i = 0; i < n; ++i) {
-		blocks[i]->dom = p;
-		p += nodewords;
-	}
-	all_closure_sets = p;
-	for (i = 0; i < n; ++i) {
-		blocks[i]->closure = p;
-		p += nodewords;
-	}
-	all_edge_sets = p;
-	for (i = 0; i < n; ++i) {
-		register struct block *b = blocks[i];
-
-		b->et.edom = p;
-		p += edgewords;
-		b->ef.edom = p;
-		p += edgewords;
-		b->et.id = i;
-		edges[i] = &b->et;
-		b->ef.id = n_blocks + i;
-		edges[n_blocks + i] = &b->ef;
-		b->et.pred = b;
-		b->ef.pred = b;
-	}
-	max_stmts = 0;
-	for (i = 0; i < n; ++i)
-		max_stmts += slength(blocks[i]->stmts) + 1;
-	/*
-	 * We allocate at most 3 value numbers per statement,
-	 * so this is an upper bound on the number of valnodes
-	 * we'll need.
-	 */
-	maxval = 3 * max_stmts;
-	vmap = (struct vmapinfo *)malloc(maxval * sizeof(*vmap));
-	vnode_base = (struct valnode *)malloc(maxval * sizeof(*vmap));
-}
-
-/*
- * Some pointers used to convert the basic block form of the code,
- * into the array form that BPF requires.  'fstart' will point to
- * the malloc'd array while 'ftail' is used during the recursive traversal.
- */
-static struct bpf_insn *fstart;
-static struct bpf_insn *ftail;
-
-#ifdef BDEBUG
-int bids[1000];
-#endif
-
-static void
-convert_code_r(p)
-	struct block *p;
-{
-	struct bpf_insn *dst;
-	struct slist *src;
-	int slen;
-	u_int off;
-
-	if (p == 0 || isMarked(p))
-		return;
-	Mark(p);
-
-	convert_code_r(JF(p));
-	convert_code_r(JT(p));
-
-	slen = slength(p->stmts);
-	dst = ftail -= slen + 1;
-
-	p->offset = dst - fstart;
-
-	for (src = p->stmts; src; src = src->next) {
-		if (src->s.code == NOP)
-			continue;
-		dst->code = (u_short)src->s.code;
-		dst->k = src->s.k;
-		++dst;
-	}
-#ifdef BDEBUG
-	bids[dst - fstart] = p->id + 1;
-#endif
-	dst->code = (u_short)p->s.code;
-	dst->k = p->s.k;
-	if (JT(p)) {
-		off = JT(p)->offset - (p->offset + slen) - 1;
-		if (off >= 256)
-			bpf_error("long jumps not supported");
-		dst->jt = off;
-		off = JF(p)->offset - (p->offset + slen) - 1;
-		if (off >= 256)
-			bpf_error("long jumps not supported");
-		dst->jf = off;
-	}
-}
-
-
-/*
- * Convert flowgraph intermediate representation to the
- * BPF array representation.  Set *lenp to the number of instructions.
- */
-struct bpf_insn *
-icode_to_fcode(root, lenp)
-	struct block *root;
-	int *lenp;
-{
-	int n;
-	struct bpf_insn *fp;
-
-	unMarkAll();
-	n = *lenp = count_stmts(root);
-
-	fp = (struct bpf_insn *)malloc(sizeof(*fp) * n);
-	memset((char *)fp, 0, sizeof(*fp) * n);
-	fstart = fp;
-	ftail = fp + n;
-
-	unMarkAll();
-	convert_code_r(root);
-
-	return fp;
-}
-
-#ifdef BDEBUG
-opt_dump(root)
-	struct block *root;
-{
-	struct bpf_program f;
-
-	memset(bids, 0, sizeof bids);
-	f.bf_insns = icode_to_fcode(root, &f.bf_len);
-	bpf_dump(&f, 1);
-	putchar('\n');
-	free((char *)f.bf_insns);
-}
-#endif
diff --git a/lib/libpcap/pcap-bpf.c b/lib/libpcap/pcap-bpf.c
deleted file mode 100644
index b576f04..0000000
--- a/lib/libpcap/pcap-bpf.c
+++ /dev/null
@@ -1,235 +0,0 @@
-/*
- * Copyright (c) 1993, 1994
- *	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  char rcsid[] =
-    "@(#)$Header: /home/ncvs/src/lib/libpcap/pcap-bpf.c,v 1.1.1.1 1995/01/20 04:13:03 jkh Exp $ (LBL)";
-#endif
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <netdb.h>
-#include <ctype.h>
-#include <signal.h>
-#include <errno.h>
-#include <sys/param.h>			/* optionally get BSD define */
-#include <sys/time.h>
-#include <sys/timeb.h>
-#include <sys/socket.h>
-#include <sys/file.h>
-#include <sys/ioctl.h>
-#include <net/bpf.h>
-#include <net/if.h>
-#include <string.h>
-
-#include "pcap-int.h"
-
-int
-pcap_stats(pcap_t *p, struct pcap_stat *ps)
-{
-	struct bpf_stat s;
-
-	if (ioctl(p->fd, BIOCGSTATS, &s) < 0) {
-		sprintf(p->errbuf, "BIOCGSTATS: %s", pcap_strerror(errno));
-		return (-1);
-	}
-
-	ps->ps_recv = s.bs_recv;
-	ps->ps_drop = s.bs_drop;
-	return (0);
-}
-
-int
-pcap_read(pcap_t *p, int cnt, pcap_handler callback, u_char *user)
-{
-	int cc;
-	int n = 0;
-	register u_char *bp, *ep;
-
- again:
-	cc = p->cc;
-	if (p->cc == 0) {
-		cc = read(p->fd, (char *)p->buffer, p->bufsize);
-		if (cc < 0) {
-			/* Don't choke when we get ptraced */
-			switch (errno) {
-
-			case EINTR:
-				goto again;
-
-			case EWOULDBLOCK:
-				return (0);
-#if defined(sun) && !defined(BSD)
-			/*
-			 * Due to a SunOS bug, after 2^31 bytes, the kernel
-			 * file offset overflows and read fails with EINVAL.
-			 * The lseek() to 0 will fix things.
-			 */
-			case EINVAL:
-				if ((long)(tell(p->fd) + p->bufsize) < 0) {
-					(void)lseek(p->fd, 0, 0);
-					goto again;
-				}
-				/* fall through */
-#endif
-			}
-			sprintf(p->errbuf, "read: %s", pcap_strerror(errno));
-			return (-1);
-		}
-		bp = p->buffer;
-	} else
-		bp = p->bp;
-
-	/*
-	 * Loop through each packet.
-	 */
-#define bhp ((struct bpf_hdr *)bp)
-	ep = bp + cc;
-	while (bp < ep) {
-		register int caplen, hdrlen;
-		caplen = bhp->bh_caplen;
-		hdrlen = bhp->bh_hdrlen;
-		/*
-		 * XXX A bpf_hdr matches a pcap_pkthdr.
-		 */
-		(*callback)(user, (struct pcap_pkthdr*)bp, bp + hdrlen);
-		bp += BPF_WORDALIGN(caplen + hdrlen);
-		if (++n >= cnt && cnt > 0) {
-			p->bp = bp;
-			p->cc = ep - bp;
-			return (n);
-		}
-	}
-#undef bhp
-	p->cc = 0;
-	return (n);
-}
-
-static inline int
-bpf_open(pcap_t *p, char *errbuf)
-{
-	int fd;
-	int n = 0;
-	char device[sizeof "/dev/bpf000"];
-
-	/*
-	 * Go through all the minors and find one that isn't in use.
-	 */
-	do {
-		(void)sprintf(device, "/dev/bpf%d", n++);
-		fd = open(device, O_RDONLY);
-	} while (fd < 0 && errno == EBUSY);
-
-	/*
-	 * XXX better message for all minors used
-	 */
-	if (fd < 0)
-		sprintf(errbuf, "%s: %s", device, pcap_strerror(errno));
-
-	return (fd);
-}
-
-pcap_t *
-pcap_open_live(char *device, int snaplen, int promisc, int to_ms, char *ebuf)
-{
-	int fd;
-	struct ifreq ifr;
-	struct bpf_version bv;
-	u_int v;
-	pcap_t *p;
-
-	p = (pcap_t *)malloc(sizeof(*p));
-	if (p == NULL) {
-		sprintf(ebuf, "malloc: %s", pcap_strerror(errno));
-		return (NULL);
-	}
-	bzero(p, sizeof(*p));
-	fd = bpf_open(p, ebuf);
-	if (fd < 0)
-		goto bad;
-
-	p->fd = fd;
-	p->snapshot = snaplen;
-
-	if (ioctl(fd, BIOCVERSION, (caddr_t)&bv) < 0) {
-		sprintf(ebuf, "BIOCVERSION: %s", pcap_strerror(errno));
-		goto bad;
-	}
-	if (bv.bv_major != BPF_MAJOR_VERSION ||
-	    bv.bv_minor < BPF_MINOR_VERSION) {
-		sprintf(ebuf, "kernel bpf filter out of date");
-		goto bad;
-	}
-	(void)strncpy(ifr.ifr_name, device, sizeof(ifr.ifr_name));
-	if (ioctl(fd, BIOCSETIF, (caddr_t)&ifr) < 0) {
-		sprintf(ebuf, "%s: %s", device, pcap_strerror(errno));
-		goto bad;
-	}
-	/* Get the data link layer type. */
-	if (ioctl(fd, BIOCGDLT, (caddr_t)&v) < 0) {
-		sprintf(ebuf, "BIOCGDLT: %s", pcap_strerror(errno));
-		goto bad;
-	}
-	p->linktype = v;
-
-	/* set timeout */
-	if (to_ms != 0) {
-		struct timeval to;
-		to.tv_sec = to_ms / 1000;
-		to.tv_usec = (to_ms * 1000) % 1000000;
-		if (ioctl(p->fd, BIOCSRTIMEOUT, (caddr_t)&to) < 0) {
-			sprintf(ebuf, "BIOCSRTIMEOUT: %s",
-				pcap_strerror(errno));
-			goto bad;
-		}
-	}
-	if (promisc)
-		/* set promiscuous mode, okay if it fails */
-		(void)ioctl(p->fd, BIOCPROMISC, NULL);
-
-	if (ioctl(fd, BIOCGBLEN, (caddr_t)&v) < 0) {
-		sprintf(ebuf, "BIOCGBLEN: %s", pcap_strerror(errno));
-		goto bad;
-	}
-	p->bufsize = v;
-	p->buffer = (u_char*)malloc(p->bufsize);
-	if (p->buffer == NULL) {
-		sprintf(ebuf, "malloc: %s", pcap_strerror(errno));
-		goto bad;
-	}
-
-	return (p);
- bad:
-	free(p);
-	return (NULL);
-}
-
-int
-pcap_setfilter(pcap_t *p, struct bpf_program *fp)
-{
-	if (p->sf.rfile != NULL)
-		p->fcode = *fp;
-	else if (ioctl(p->fd, BIOCSETF, (caddr_t)fp) < 0) {
-		sprintf(p->errbuf, "BIOCSETF: %s", pcap_strerror(errno));
-		return (-1);
-	}
-	return (0);
-}
diff --git a/lib/libpcap/pcap-dlpi.c b/lib/libpcap/pcap-dlpi.c
deleted file mode 100644
index adcffcd..0000000
--- a/lib/libpcap/pcap-dlpi.c
+++ /dev/null
@@ -1,506 +0,0 @@
-/*
- * Copyright (c) 1993, 1994
- *	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.
- *
- * This code contributed by Atanu Ghosh (atanu@cs.ucl.ac.uk),
- * University College London.
- */
-#ifndef lint
-static  char rcsid[] =
-    "@(#)$Header: pcap-dlpi.c,v 1.22x 94/10/12 20:08:15 leres Exp $ (LBL)";
-#endif
-
-/*
- * Packet capture routine for dlpi under SunOS 5
- *
- * Notes:
- *
- *    - Apparently the DLIOCRAW ioctl() is specific to SunOS.
- *
- *    - There is a bug in bufmod(7) such that setting the snapshot
- *      length results in data being left of the front of the packet.
- *
- *    - It might be desirable to use pfmod(7) to filter packets in the
- *      kernel.
- */
-
-#include <sys/types.h>
-#include <sys/time.h>
-#include <sys/bufmod.h>
-#include <sys/dlpi.h>
-#include <sys/stream.h>
-#include <sys/systeminfo.h>
-
-#include <net/bpf.h>
-
-#include <ctype.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <memory.h>
-#include <signal.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <stropts.h>
-#include <unistd.h>
-
-#include "pcap-int.h"
-
-#define	MAXDLBUF	8192
-
-/* Forwards */
-static int send_request(int, char *, int, char *, char *);
-static int dlattachreq(int, u_long, char *);
-static int dlinfoack(int, char *, char *);
-static int dlinforeq(int, char *);
-static int dlpromisconreq(int, u_long, char *);
-static int dlokack(int, char *, char *);
-static int strioctl(int, int, int, char *);
-#ifdef SOLARIS
-static char *getrelease(long *, long *, long *);
-#endif
-
-int
-pcap_stats(pcap_t *p, struct pcap_stat *ps)
-{
-
-	*ps = p->md.stat;
-	return (0);
-}
-
-int
-pcap_read(pcap_t *p, int cnt, pcap_handler callback, u_char *user)
-{
-	register int cc, n;
-	register u_char *bp, *ep, *pk;
-	register struct bpf_insn *fcode;
-	register struct sb_hdr *sbp;
-	int flags;
-	struct strbuf data;
-	struct pcap_pkthdr pkthdr;
-
-	flags = 0;
-	cc = p->cc;
-	if (cc == 0) {
-		data.buf = (char *)p->buffer;
-		data.maxlen = MAXDLBUF;
-		data.len = 0;
-		do {
-			if (getmsg(p->fd, NULL, &data, &flags) < 0) {
-				/* Don't choke when we get ptraced */
-				if (errno == EINTR) {
-					cc = 0;
-					continue;
-				}
-				strcpy(p->errbuf, pcap_strerror(errno));
-				return (-1);
-			}
-			cc = data.len;
-		} while (cc == 0);
-		bp = p->buffer;
-	} else
-		bp = p->bp;
-
-	/* Loop through packets */
-	fcode = p->fcode.bf_insns;
-	ep = bp + cc;
-	n = 0;
-	while (bp < ep) {
-		sbp = (struct sb_hdr *)bp;
-		p->md.stat.ps_drop += sbp->sbh_drops;
-		++p->md.stat.ps_recv;
-		pk = bp + sizeof(*sbp);
-		bp += sbp->sbh_totlen;
-		if (bpf_filter(fcode, pk, sbp->sbh_origlen, sbp->sbh_msglen)) {
-			pkthdr.ts = sbp->sbh_timestamp;
-			pkthdr.len = sbp->sbh_origlen;
-			pkthdr.caplen = sbp->sbh_msglen;
-			(*callback)(user, &pkthdr, pk);
-			if (++n >= cnt && cnt >= 0) {
-				p->cc = ep - bp;
-				p->bp = bp;
-				return (n);
-			}
-		}
-	}
-	p->cc = 0;
-	return (n);
-}
-
-pcap_t *
-pcap_open_live(char *device, int snaplen, int promisc, int to_ms, char *ebuf)
-{
-	register pcap_t *p;
-	long	buf[MAXDLBUF];
-	int ppa;
-	int cppa;
-	register dl_info_ack_t *infop;
-	u_long ss, flag;
-#ifdef SOLARIS
-	char *release;
-	long osmajor, osminor, osmicro;
-#endif
-	char dname[100];
-
-	p = (pcap_t *)malloc(sizeof(*p));
-	if (p == NULL) {
-		strcpy(ebuf, pcap_strerror(errno));
-		return (NULL);
-	}
-	memset(p, 0, sizeof(*p));
-
-	/*
-	** 1) In order to get the ppa take the last character of the device
-	** name if it is a number then fail the open.
-	**
-	** 2) If the name starts with a '/' then this is an absolute pathname,
-	** otherwise prepend '/dev/'.
-	**
-	** 3) Remove the trailing digit and try and open the device
-	** not staggeringly intuitive but it should work.
-	**
-	** If there are more than 9 devices this code will fail.
-	*/
-
-	cppa = device[strlen(device) - 1];
-	if (!isdigit(cppa)) {
-		sprintf(ebuf, "%c is not a digit, therefore not a valid ppa",
-		    cppa);
-		goto bad;
-	}
-
-	dname[0] = '\0';
-	if (device[0] != '/')
-		strcpy(dname, "/dev/");
-
-	strcat(dname, device);
-	dname[strlen(dname) - 1] = '\0';
-
-	if ((p->fd = open(dname, O_RDWR)) < 0) {
-		sprintf(ebuf, "%s: %s", dname, pcap_strerror(errno));
-		goto bad;
-	}
-	p->snapshot = snaplen;
-
-	ppa = cppa - '0';
-	/*
-	** Attach.
-	*/
-	if (dlattachreq(p->fd, ppa, ebuf) < 0 ||
-	    dlokack(p->fd, (char *)buf, ebuf) < 0)
-		goto bad;
-
-	if (promisc) {
-		/*
-		** enable promiscuous.
-		*/
-		if (dlpromisconreq(p->fd, DL_PROMISC_PHYS, ebuf) < 0 ||
-		    dlokack(p->fd, (char *)buf, ebuf) < 0)
-			goto bad;
-		if (dlpromisconreq(p->fd, DL_PROMISC_SAP, ebuf) < 0 ||
-		    dlokack(p->fd, (char *)buf, ebuf) < 0)
-			goto bad;
-
-		/*
-		** enable multicast, you would have thought promiscuous
-		** would be sufficient.
-		*/
-		if (dlpromisconreq(p->fd, DL_PROMISC_MULTI, ebuf) < 0 ||
-		    dlokack(p->fd, (char *)buf, ebuf) < 0)
-			goto bad;
-	}
-
-	/*
-	** Determine link type
-	*/
-	if (dlinforeq(p->fd, ebuf) < 0 ||
-	    dlinfoack(p->fd, (char *)buf, ebuf) < 0)
-		goto bad;
-
-	infop = &((union DL_primitives *)buf)->info_ack;
-	switch (infop->dl_mac_type) {
-
-	case DL_ETHER:
-		p->linktype = DLT_EN10MB;
-		break;
-
-	case DL_FDDI:
-		p->linktype = DLT_FDDI;
-		break;
-
-	default:
-		sprintf(ebuf, "unknown mac type 0x%lu", infop->dl_mac_type);
-		goto bad;
-	}
-
-#ifdef	DLIOCRAW
-	/*
-	** This is a non standard SunOS hack to get the ethernet header.
-	*/
-	if (strioctl(p->fd, DLIOCRAW, 0, NULL) < 0) {
-		sprintf(ebuf, "DLIOCRAW: %s", pcap_strerror(errno));
-		goto bad;
-	}
-#endif
-
-	/*
-	** Another non standard call to get the data nicely buffered
-	*/
-	if (ioctl(p->fd, I_PUSH, "bufmod") != 0) {
-		sprintf(ebuf, "I_PUSH bufmod: %s", pcap_strerror(errno));
-		goto bad;
-	}
-
-	/*
-	** Now that the bufmod is pushed lets configure it.
-	**
-	** There is a bug in bufmod(7). When dealing with messages of
-	** less than snaplen size it strips data from the beginning not
-	** the end.
-	**
-	** This bug is supposed to be fixed in 5.3.2. Also, there is a
-	** patch available. Ask for bugid 1149065.
-	*/
-	ss = snaplen;
-#ifdef SOLARIS
-	release = getrelease(&osmajor, &osminor, &osmicro);
-	if (osmajor == 5 && (osminor <= 2 || (osminor == 3 && osmicro < 2)) &&
-	    getenv("BUFMOD_FIXED") == NULL) {
-		fprintf(stderr,
-		"WARNING: bufmod is broken in SunOS %s; ignoring snaplen.\n",
-		    release);
-		ss = 0;
-	}
-#endif
-	if (ss > 0 &&
-	    strioctl(p->fd, SBIOCSSNAP, sizeof(u_long), (char *)&ss) != 0) {
-		sprintf(ebuf, "SBIOCSSNAP: %s", pcap_strerror(errno));
-		goto bad;
-	}
-
-	/*
-	** Set up the bufmod flags
-	*/
-	if (strioctl(p->fd, SBIOCGFLAGS, sizeof(u_long), (char *)&flag) < 0) {
-		sprintf(ebuf, "SBIOCGFLAGS: %s", pcap_strerror(errno));
-		goto bad;
-	}
-	flag |= SB_NO_DROPS;
-	if (strioctl(p->fd, SBIOCSFLAGS, sizeof(u_long), (char *)&flag) != 0) {
-		sprintf(ebuf, "SBIOCSFLAGS: %s", pcap_strerror(errno));
-		goto bad;
-	}
-	/*
-	** Set up the bufmod timeout
-	*/
-	if (to_ms != 0) {
-		struct timeval to;
-
-		to.tv_sec = to_ms / 1000;
-		to.tv_usec = (to_ms * 1000) % 1000000;
-		if (strioctl(p->fd, SBIOCSTIME, sizeof(to), (char *)&to) != 0) {
-			sprintf(ebuf, "SBIOCSTIME: %s", pcap_strerror(errno));
-			goto bad;
-		}
-	}
-
-	/*
-	** As the last operation flush the read side.
-	*/
-	if (ioctl(p->fd, I_FLUSH, FLUSHR) != 0) {
-		sprintf(ebuf, "FLUSHR: %s", pcap_strerror(errno));
-		goto bad;
-	}
-	/* Allocate data buffer */
-	p->bufsize = MAXDLBUF * sizeof(long);
-	p->buffer = (u_char *)malloc(p->bufsize);
-	return (p);
-bad:
-	free(p);
-	return (NULL);
-}
-
-int
-pcap_setfilter(pcap_t *p, struct bpf_program *fp)
-{
-
-	p->fcode = *fp;
-	return (0);
-}
-
-static int
-send_request(int fd, char *ptr, int len, char *what, char *ebuf)
-{
-	struct	strbuf	ctl;
-	int	flags;
-
-	ctl.maxlen = 0;
-	ctl.len = len;
-	ctl.buf = ptr;
-
-	flags = 0;
-	if (putmsg(fd, &ctl, (struct strbuf *) NULL, flags) < 0) {
-		sprintf(ebuf, "putmsg \"%s\"failed: %s",
-		    what, pcap_strerror(errno));
-		return (-1);
-	}
-	return (0);
-}
-
-static int
-dlattachreq(int fd, u_long ppa, char *ebuf)
-{
-	dl_attach_req_t	req;
-
-	req.dl_primitive = DL_ATTACH_REQ;
-	req.dl_ppa = ppa;
-
-	return (send_request(fd, (char *)&req, sizeof(req), "attach", ebuf));
-}
-
-static int
-dlpromisconreq(int fd, u_long level, char *ebuf)
-{
-	dl_promiscon_req_t req;
-
-	req.dl_primitive = DL_PROMISCON_REQ;
-	req.dl_level = level;
-
-	return (send_request(fd, (char *)&req, sizeof(req), "promiscon", ebuf));
-}
-
-static int
-dlokack(int fd, char *bufp, char *ebuf)
-{
-	union	DL_primitives	*dlp;
-	struct	strbuf	ctl;
-	int	flags;
-
-	ctl.maxlen = MAXDLBUF;
-	ctl.len = 0;
-	ctl.buf = bufp;
-
-	flags = 0;
-	if (getmsg(fd, &ctl, (struct strbuf*)NULL, &flags) < 0) {
-		sprintf(ebuf, "getmsg: %s", pcap_strerror(errno));
-		return (-1);
-	}
-
-	dlp = (union DL_primitives *) ctl.buf;
-
-	if (dlp->dl_primitive != DL_OK_ACK) {
-		sprintf(ebuf, "dlokack unexpected primitive %d",
-			dlp->dl_primitive);
-		return (-1);
-	}
-
-	if (ctl.len != sizeof(dl_ok_ack_t)) {
-		sprintf(ebuf, "dlokack incorrect size returned");
-		return (-1);
-	}
-	return (0);
-}
-
-
-static int
-dlinforeq(int fd, char *ebuf)
-{
-	dl_info_req_t req;
-
-	req.dl_primitive = DL_INFO_REQ;
-
-	return (send_request(fd, (char *)&req, sizeof(req), "info", ebuf));
-}
-
-static int
-dlinfoack(int fd, char *bufp, char *ebuf)
-{
-	union	DL_primitives	*dlp;
-	struct	strbuf	ctl;
-	int	flags;
-
-	ctl.maxlen = MAXDLBUF;
-	ctl.len = 0;
-	ctl.buf = bufp;
-
-	flags = 0;
-	if (getmsg(fd, &ctl, (struct strbuf *)NULL, &flags) < 0) {
-		sprintf(ebuf, "dlinfoack: getmsg: %s", pcap_strerror(errno));
-		return (-1);
-	}
-
-	dlp = (union DL_primitives *) ctl.buf;
-
-	if (dlp->dl_primitive != DL_INFO_ACK) {
-		sprintf(ebuf, "dlinfoack: unexpected primitive %ld",
-			dlp->dl_primitive);
-		return (-1);
-	}
-
-	/* Extra stuff like the broadcast address can be returned */
-	if (ctl.len < DL_INFO_ACK_SIZE) {
-		sprintf(ebuf, "dlinfoack: incorrect size returned");
-		return (-1);
-	}
-	return (0);
-}
-
-static int
-strioctl(int fd, int cmd, int len, char *dp)
-{
-	struct strioctl str;
-	int rc;
-
-	str.ic_cmd = cmd;
-	str.ic_timout = -1;
-	str.ic_len = len;
-	str.ic_dp = dp;
-	rc = ioctl(fd, I_STR, &str);
-
-	if (rc < 0)
-		return (rc);
-	else
-		return (str.ic_len);
-}
-
-#ifdef SOLARIS
-static char *
-getrelease(long *majorp, long *minorp, long *microp)
-{
-	char *cp;
-	static char buf[32];
-
-	*majorp = 0;
-	*minorp = 0;
-	*microp = 0;
-	if (sysinfo(SI_RELEASE, buf, sizeof(buf)) < 0)
-		return ("?");
-	cp = buf;
-	if (!isdigit(*cp))
-		return (buf);
-	*majorp = strtol(cp, &cp, 10);
-	if (*cp++ != '.')
-		return (buf);
-	*minorp =  strtol(cp, &cp, 10);
-	if (*cp++ != '.')
-		return (buf);
-	*microp =  strtol(cp, &cp, 10);
-	return (buf);
-}
-#endif
diff --git a/lib/libpcap/pcap-enet.c b/lib/libpcap/pcap-enet.c
deleted file mode 100644
index cb052eb..0000000
--- a/lib/libpcap/pcap-enet.c
+++ /dev/null
@@ -1,227 +0,0 @@
-/*
- * Stanford Enetfilter subroutines for tcpdump
- *
- * Based on the MERIT NNstat etherifrt.c and the Ultrix pcap-pf.c
- * subroutines.
- *
- * Rayan Zachariassen, CA*Net
- */
-
-#include <sys/types.h>
-#include <sys/time.h>
-#include <sys/file.h>
-#include <sys/ioctl.h>
-#include <sys/socket.h>
-
-#include <net/if.h>
-#include <net/bpf.h>
-#include <net/enet.h>
-
-#include <netinet/in.h>
-#include <netinet/if_ether.h>
-
-#include <stdio.h>
-#include <errno.h>
-
-#include "interface.h"
-
-struct packet_header {
-#ifdef	IBMRTPC
-	struct LengthWords	length;
-	struct tap_header	tap;
-#endif	/* IBMRTPC */
-	u_char			packet[8]
-};
-
-extern int errno;
-
-#define BUFSPACE (4*1024)
-
-/* Forwards */
-static void efReadError(int, char *);
-
-void
-readloop(int cnt, int if_fd, struct bpf_program *fp, printfunc printit)
-{
-#ifdef	IBMRTPC
-	register struct packet_header *ph;
-	register u_char *bp;
-	register int inc;
-#else	/* !IBMRTPC */
-	static struct timeval tv = { 0 };
-#endif	/* IBMRTPC */
-	register int cc, caplen;
-	register struct bpf_insn *fcode = fp->bf_insns;
-	union {
-		struct packet_header hdr;
-		u_char	p[BUFSPACE];
-		u_short	s;
-	} buf;
-
-	while (1) {
-		if ((cc = read(if_fd, (char *)buf.p, sizeof(buf))) < 0)
-			efReadError(if_fd, "reader");
-
-#ifdef	IBMRTPC
-		/*
-		 * Loop through each packet.
-		 */
-		bp = buf.p;
-		while (cc > 0) {
-			ph = (struct packet_header *)bp;
-			caplen = ph->tap.th_wirelen > snaplen ? snaplen : ph->tap
-.th_wirelen ;
-			if (bpf_filter(fcode, (char *)ph->packet,
-						ph->tap.th_wirelen, caplen)) {
-				if (cnt >= 0 && --cnt < 0)
-					goto out;
-				(*printit)((char *)ph->packet,
-					(struct timeval *)ph->tap.th_timestamp,
-					ph->tap.th_wirelen, caplen);
-			}
-			inc = ph->length.PacketOffset;
-			cc -= inc;
-			bp += inc;
-		}
-#else	/* !IBMRTPC */
-		caplen = cc > snaplen ? snaplen : cc ;
-		if (bpf_filter(fcode, buf.hdr.packet, cc, caplen)) {
-			if (cnt >= 0 && --cnt < 0)
-				goto out;
-			(*printit)(buf.hdr.packet, &tv, cc, caplen);
-		}
-#endif	/* IBMRTPC */
-	}
- out:
-	wrapup(if_fd);
-}
-
-/* Call ONLY if read() has returned an error on packet filter */
-static void
-efReadError(int fid, char *msg)
-{
-	if (errno == EINVAL) {	/* read MAXINT bytes already! */
-		if (lseek(fid, 0, 0) < 0) {
-			perror("tcpdump: efReadError/lseek");
-			exit(-1);
-		}
-		else
-			return;
-	}
-	else {
-		(void) fprintf(stderr, "tcpdump: ");
-		perror(msg);
-		exit(-1);
-	}
-}
-
-void
-wrapup(int fd)
-{
-#ifdef	IBMRTPC
-	struct enstats es;
-
-	if (ioctl(fd, EIOSTATS, &es) == -1) {
-		perror("tcpdump: enet ioctl EIOSTATS error");
-		exit(-1);
-	}
-
-	fprintf(stderr, "%d packets queued", es.enStat_Rcnt);
-	if (es.enStat_Rdrops > 0)
-		fprintf(stderr, ", %d dropped", es.enStat_Rdrops);
-	if (es.enStat_Reads > 0)
-		fprintf(stderr, ", %d tcpdump %s", es.enStat_Reads,
-				es.enStat_Reads > 1 ? "reads" : "read");
-	if (es.enStat_MaxRead > 1)
-		fprintf(stderr, ", %d packets in largest read",
-			es.enStat_MaxRead);
-	putc('\n', stderr);
-#endif	/* IBMRTPC */
-	close(fd);
-}
-
-int
-initdevice(char *device, int pflag, int *linktype)
-{
-	struct eniocb ctl;
-	struct enfilter filter;
-	u_int maxwaiting;
-	int if_fd;
-
-#ifdef	IBMRTPC
-	GETENETDEVICE(0, O_RDONLY, &if_fd);
-#else	/* !IBMRTPC */
-	if_fd = open("/dev/enet", O_RDONLY, 0);
-#endif	/* IBMRTPC */
-
-	if (if_fd == -1) {
-		perror("tcpdump: enet open error");
-		error(
-"your system may not be properly configured; see \"man enet(4)\"");
-		exit(-1);
-	}
-
-	/*  Get operating parameters. */
-
-	if (ioctl(if_fd, EIOCGETP, (char *)&ctl) == -1) {
-		perror("tcpdump: enet ioctl EIOCGETP error");
-		exit(-1);
-	}
-
-	/*  Set operating parameters. */
-
-#ifdef	IBMRTPC
-	ctl.en_rtout = 1 * ctl.en_hz;
-	ctl.en_tr_etherhead = 1;
-	ctl.en_tap_network = 1;
-	ctl.en_multi_packet = 1;
-	ctl.en_maxlen = BUFSPACE;
-#else	/* !IBMRTPC */
-	ctl.en_rtout = 64;	/* randomly picked value for HZ */
-#endif	/* IBMRTPC */
-	if (ioctl(if_fd, EIOCSETP, &ctl) == -1) {
-		perror("tcpdump: enet ioctl EIOCSETP error");
-		exit(-1);
-	}
-
-	/*  Flush the receive queue, since we've changed
-	    the operating parameters and we otherwise might
-	    receive data without headers. */
-
-	if (ioctl(if_fd, EIOCFLUSH) == -1) {
-		perror("tcpdump: enet ioctl EIOCFLUSH error");
-		exit(-1);
-	}
-
-	/*  Set the receive queue depth to its maximum. */
-
-	maxwaiting = ctl.en_maxwaiting;
-	if (ioctl(if_fd, EIOCSETW, &maxwaiting) == -1) {
-		perror("tcpdump: enet ioctl EIOCSETW error");
-		exit(-1);
-	}
-
-#ifdef	IBMRTPC
-	/*  Clear statistics. */
-
-	if (ioctl(if_fd, EIOCLRSTAT, 0) == -1) {
-		perror("tcpdump: enet ioctl EIOCLRSTAT error");
-		exit(-1);
-	}
-#endif	/* IBMRTPC */
-
-	/*  Set the filter (accept all packets). */
-
-	filter.enf_Priority = 3;
-	filter.enf_FilterLen = 0;
-	if (ioctl(if_fd, EIOCSETF, &filter) == -1) {
-		perror("tcpdump: enet ioctl EIOCSETF error");
-		exit(-1);
-	}
-	/*
-	 * "enetfilter" supports only ethernets.
-	 */
-	*linktype = DLT_EN10MB;
-
-	return(if_fd);
-}
diff --git a/lib/libpcap/pcap-int.h b/lib/libpcap/pcap-int.h
deleted file mode 100644
index db3677a..0000000
--- a/lib/libpcap/pcap-int.h
+++ /dev/null
@@ -1,98 +0,0 @@
-/*
- * Copyright (c) 1994
- *	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 the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the Computer Systems
- *	Engineering Group at Lawrence Berkeley Laboratory.
- * 4. Neither the name of the University nor of the Laboratory may be used
- *    to endorse or promote products derived from this software without
- *    specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * @(#) $Header: /home/ncvs/src/lib/libpcap/pcap-int.h,v 1.1.1.1 1995/01/20 04:13:06 jkh Exp $ (LBL)
- */
-
-#ifndef pcap_int_h
-#define pcap_int_h
-
-#include <pcap.h>
-
-/*
- * Savefile
- */
-struct pcap_sf {
-	FILE *rfile;
-	int swapped;
-	int version_major;
-	int version_minor;
-	u_char *base;
-};
-
-struct pcap_md {
-	struct pcap_stat stat;
-#ifdef PCAP_PF
-	int use_bpf;
-	u_long	TotPkts;	/* can't oflow for 79 hrs on ether */
-	u_long	TotAccepted;	/* count accepted by filter */
-	u_long	TotDrops;	/* count of dropped packets */
-	long	TotMissed;	/* missed by i/f during this run */
-	long	OrigMissed;	/* missed by i/f before this run */
-#endif
-};
-
-struct pcap {
-	int fd;
-	int snapshot;
-	int linktype;
-	int tzoff;		/* timezone offset */
-
-	struct pcap_sf sf;
-	struct pcap_md md;
-
-	/*
-	 * Read buffer.
-	 */
-	int bufsize;
-	u_char *buffer;
-	u_char *bp;
-	int cc;
-
-	/*
-	 * Place holder for pcap_next().
-	 */
-	u_char *pkt;
-
-
-	/*
-	 * Placeholder for filter code if bpf not in kernel.
-	 */
-	struct bpf_program fcode;
-
-	char errbuf[PCAP_ERRBUF_SIZE];
-};
-
-/* XXX should these be in pcap.h? */
-int	pcap_offline_read(pcap_t *, int, pcap_handler, u_char *);
-int	pcap_read(pcap_t *, int cnt, pcap_handler, u_char *);
-#endif
diff --git a/lib/libpcap/pcap-namedb.h b/lib/libpcap/pcap-namedb.h
deleted file mode 100644
index 3471227..0000000
--- a/lib/libpcap/pcap-namedb.h
+++ /dev/null
@@ -1,76 +0,0 @@
-/*
- * Copyright (c) 1994
- *	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 the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the Computer Systems
- *	Engineering Group at Lawrence Berkeley Laboratory.
- * 4. Neither the name of the University nor of the Laboratory may be used
- *    to endorse or promote products derived from this software without
- *    specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * @(#) $Header: pcap-namedb.h,v 1.2 94/06/14 20:03:34 leres Exp $ (LBL)
- */
-
-#ifndef lib_pcap_ethers_h
-#define lib_pcap_ethers_h
-
-/*
- * As returned by the pcap_next_etherent()
- * XXX this stuff doesn't belong in this inteface, but this
- * library already must do name to address translation, so
- * on systems that don't have support for /etc/ethers, we
- * export these hooks since they'll
- */
-struct pcap_etherent {
-	u_char addr[6];
-	char name[122];
-};
-#ifndef PCAP_ETHERS_FILE
-#define PCAP_ETHERS_FILE "/etc/ethers"
-#endif
-struct	pcap_etherent *pcap_next_etherent(FILE *);
-u_char *pcap_ether_hostton(const char*);
-u_char *pcap_ether_aton(const char *);
-
-u_long	**pcap_nametoaddr(const char *);
-u_long	pcap_nametonetaddr(const char *);
-
-int	pcap_nametoport(const char *, int *, int *);
-int	pcap_nametoproto(const char *);
-int	pcap_nametoeproto(const char *);
-/*
- * If a protocol is unknown, PROTO_UNDEF is returned.
- * Also, pcap_nametoport() returns the protocol along with the port number.
- * If there are ambiguous entried in /etc/services (i.e. domain
- * can be either tcp or udp) PROTO_UNDEF is returned.
- */
-#define PROTO_UNDEF		-1
-
-/* XXX move these to pcap-int.h? */
-u_long	__pcap_atodn(const char *);
-u_long	__pcap_atoin(const char *);
-u_short	__pcap_nametodnaddr(const char *);
-
-#endif
diff --git a/lib/libpcap/pcap-nit.c b/lib/libpcap/pcap-nit.c
deleted file mode 100644
index 125e14f..0000000
--- a/lib/libpcap/pcap-nit.c
+++ /dev/null
@@ -1,240 +0,0 @@
-/*
- * Copyright (c) 1990, 1991, 1992, 1993, 1994
- *	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  char rcsid[] =
-    "@(#)$Header: pcap-nit.c,v 1.24 94/02/10 23:02:37 leres Exp $ (LBL)";
-#endif
-
-#include <sys/types.h>
-#include <sys/time.h>
-#include <sys/timeb.h>
-#include <sys/file.h>
-#include <sys/ioctl.h>
-#include <sys/socket.h>
-
-#include <net/bpf.h>
-#include <net/if.h>
-#include <net/nit.h>
-
-#include <netinet/in.h>
-#include <netinet/in_systm.h>
-#include <netinet/ip.h>
-#include <netinet/if_ether.h>
-#include <netinet/ip_var.h>
-#include <netinet/udp.h>
-#include <netinet/udp_var.h>
-#include <netinet/tcp.h>
-#include <netinet/tcpip.h>
-
-#include <ctype.h>
-#include <errno.h>
-#include <stdio.h>
-
-#include "pcap-int.h"
-
-/*
- * The chunk size for NIT.  This is the amount of buffering
- * done for read calls.
- */
-#define CHUNKSIZE (2*1024)
-
-/*
- * The total buffer space used by NIT.
- */
-#define BUFSPACE (4*CHUNKSIZE)
-
-/* Forwards */
-static int nit_setflags(int, int, int, char *);
-
-int
-pcap_stats(pcap_t *p, struct pcap_stat *ps)
-{
-
-	*ps = p->md.stat;
-	return (0);
-}
-
-int
-pcap_read(pcap_t *p, int cnt, pcap_handler callback, u_char *user)
-{
-	register int cc, n;
-	register struct bpf_insn *fcode = p->fcode.bf_insns;
-	register u_char *bp, *cp, *ep;
-	register struct nit_hdr *nh;
-	register int caplen;
-
-	cc = p->cc;
-	if (cc == 0) {
-		cc = read(p->fd, (char *)p->buffer, p->bufsize);
-		if (cc < 0) {
-			if (errno == EWOULDBLOCK)
-				return (0);
-			sprintf(p->errbuf, "pcap_read: %s",
-				pcap_strerror(errno));
-			return (-1);
-		}
-		bp = p->buffer;
-	} else
-		bp = p->bp;
-
-	/*
-	 * Loop through each packet.  The increment expression
-	 * rounds up to the next int boundary past the end of
-	 * the previous packet.
-	 */
-	n = 0;
-	ep = bp + cc;
-	while (bp < ep) {
-		nh = (struct nit_hdr *)bp;
-		cp = bp + sizeof(*nh);
-
-		switch (nh->nh_state) {
-
-		case NIT_CATCH:
-			break;
-
-		case NIT_NOMBUF:
-		case NIT_NOCLUSTER:
-		case NIT_NOSPACE:
-			p->md.stat.ps_drop = nh->nh_dropped;
-			continue;
-
-		case NIT_SEQNO:
-			continue;
-
-		default:
-			sprintf(p->errbuf, "bad nit state %d", nh->nh_state);
-			return (-1);
-		}
-		++p->md.stat.ps_recv;
-		bp += ((sizeof(struct nit_hdr) + nh->nh_datalen +
-		    sizeof(int) - 1) & ~(sizeof(int) - 1));
-
-		caplen = nh->nh_wirelen;
-		if (caplen > p->snapshot)
-			caplen = p->snapshot;
-		if (bpf_filter(fcode, cp, nh->nh_wirelen, caplen)) {
-			struct pcap_pkthdr h;
-			h.ts = nh->nh_timestamp;
-			h.len = nh->nh_wirelen;
-			h.caplen = caplen;
-			(*callback)(user, &h, cp);
-			if (++n >= cnt && cnt >= 0) {
-				p->cc = ep - bp;
-				p->bp = bp;
-				return (n);
-			}
-		}
-	}
-	p->cc = 0;
-	return (n);
-}
-
-static int
-nit_setflags(int fd, int promisc, int to_ms, char *ebuf)
-{
-	struct nit_ioc nioc;
-
-	bzero((char *)&nioc, sizeof(nioc));
-	nioc.nioc_bufspace = BUFSPACE;
-	nioc.nioc_chunksize = CHUNKSIZE;
-	nioc.nioc_typetomatch = NT_ALLTYPES;
-	nioc.nioc_snaplen = p->snapshot;
-	nioc.nioc_bufalign = sizeof(int);
-	nioc.nioc_bufoffset = 0;
-
-	if (to_ms != 0) {
-		nioc.nioc_flags |= NF_TIMEOUT;
-		nioc.nioc_timeout.tv_sec = to_ms / 1000;
-		nioc.nioc_timeout.tv_usec = (to_ms * 1000) % 1000000;
-	}
-	if (promisc)
-		nioc.nioc_flags |= NF_PROMISC;
-
-	if (ioctl(fd, SIOCSNIT, &nioc) < 0) {
-		sprintf(ebuf, "SIOCSNIT: %s", pcap_strerror(errno));
-		return (-1);
-	}
-	return (0);
-}
-
-pcap_t *
-pcap_open_live(char *device, int snaplen, int promisc, int to_ms, char *ebuf)
-{
-	int fd;
-	struct sockaddr_nit snit;
-	register pcap_t *p;
-
-	p = (pcap_t *)malloc(sizeof(*p));
-	if (p == NULL) {
-		strcpy(ebuf, pcap_strerror(errno));
-		return (NULL);
-	}
-
-	if (snaplen < 96)
-		/*
-		 * NIT requires a snapshot length of at least 96.
-		 */
-		snaplen = 96;
-
-	bzero(p, sizeof(*p));
-	p->fd = fd = socket(AF_NIT, SOCK_RAW, NITPROTO_RAW);
-	if (fd < 0) {
-		sprintf(ebuf, "socket: %s", pcap_strerror(errno));
-		goto bad;
-	}
-	snit.snit_family = AF_NIT;
-	(void)strncpy(snit.snit_ifname, device, NITIFSIZ);
-
-	if (bind(fd, (struct sockaddr *)&snit, sizeof(snit))) {
-		sprintf(ebuf, "bind: %s: %s", snit.snit_ifname,
-			pcap_strerror(errno));
-		goto bad;
-	}
-	p->snapshot = snaplen;
-	nit_setflags(p->fd, promisc, to_ms, ebuf);
-
-	/*
-	 * NIT supports only ethernets.
-	 */
-	p->linktype = DLT_EN10MB;
-
-	p->bufsize = BUFSPACE;
-	p->buffer = (u_char *)malloc(p->bufsize);
-	if (p->buffer == NULL) {
-		strcpy(ebuf, pcap_strerror(errno));
-		goto bad;
-	}
-	return (p);
- bad:
-	if (fd >= 0)
-		close(fd);
-	free(p);
-	return (NULL);
-}
-
-int
-pcap_setfilter(pcap_t *p, struct bpf_program *fp)
-{
-
-	p->fcode = *fp;
-	return (0);
-}
diff --git a/lib/libpcap/pcap-nit.h b/lib/libpcap/pcap-nit.h
deleted file mode 100644
index dc1c9e8..0000000
--- a/lib/libpcap/pcap-nit.h
+++ /dev/null
@@ -1,19 +0,0 @@
-/*
- * Copyright (c) 1990, 1994
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms are permitted
- * provided that the above copyright notice and this paragraph are
- * duplicated in all such forms and that any documentation,
- * advertising materials, and other materials related to such
- * distribution and use acknowledge that the software was developed
- * by the University of California, Lawrence Berkeley Laboratory,
- * Berkeley, CA.  The name of the University may not 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 MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- *
- * @(#) $Header: pcap-nit.h,v 1.2 94/06/14 20:06:03 leres Exp $ (LBL)
- */
diff --git a/lib/libpcap/pcap-pf.c b/lib/libpcap/pcap-pf.c
deleted file mode 100644
index 483dc97..0000000
--- a/lib/libpcap/pcap-pf.c
+++ /dev/null
@@ -1,310 +0,0 @@
-/*
- * Copyright (c) 1990, 1991, 1992, 1993, 1994
- *	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  char rcsid[] =
-    "@(#)$Header: pcap-pf.c,v 1.32 94/06/10 17:41:01 mccanne Exp $ (LBL)";
-#endif
-
-/*
- * packet filter subroutines for tcpdump
- *	Extraction/creation by Jeffrey Mogul, DECWRL
- *
- * Extracted from tcpdump.c.
- */
-
-#include <sys/types.h>
-#include <sys/time.h>
-#include <sys/timeb.h>
-#include <sys/socket.h>
-#include <sys/file.h>
-#include <sys/ioctl.h>
-#include <net/pfilt.h>
-
-#include <net/if.h>
-#include <net/bpf.h>
-
-#include <netinet/in.h>
-#include <netinet/in_systm.h>
-#include <netinet/ip.h>
-#include <netinet/if_ether.h>
-#include <netinet/ip_var.h>
-#include <netinet/udp.h>
-#include <netinet/udp_var.h>
-#include <netinet/tcp.h>
-#include <netinet/tcpip.h>
-
-#include <ctype.h>
-#include <errno.h>
-#include <netdb.h>
-#include <signal.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-#include "pcap-int.h"
-
-/*
- * BUFSPACE is the size in bytes of the packet read buffer.  Most tcpdump
- * applications aren't going to need more than 200 bytes of packet header
- * and the read shouldn't return more packets than packetfilter's internal
- * queue limit (bounded at 256).
- */
-#define BUFSPACE (200*256)
-
-int
-pcap_read(pcap_t *pc, int cnt, pcap_handler callback, u_char *user)
-{
-	u_char *p;
-	struct bpf_insn *fcode;
-	int cc;
-	register u_char *bp;
-	int buflen, inc;
-	struct enstamp stamp;
-	int n;
-	fcode = pc->md.use_bpf ? 0 : pc->fcode.bf_insns;
- again:
-	cc = pc->cc;
-	if (cc == 0) {
-		cc = read(pc->fd, (char *)pc->buffer, pc->bufsize);
-		if (cc < 0) {
-			if (errno == EWOULDBLOCK)
-				return (0);
-			if (errno == EINVAL &&
-			    (long)(tell(pc->fd) + pc->bufsize) < 0) {
-				/*
-				 * Due to a kernel bug, after 2^31 bytes,
-				 * the kernel file offset overflows and
-				 * read fails with EINVAL. The lseek()
-				 * to 0 will fix things.
-				 */
-				(void)lseek(pc->fd, 0L, 0);
-				goto again;
-			}
-			sprintf(pc->errbuf, "pf read: %s",
-				pcap_strerror(errno));
-			return (-1);
-		}
-		bp = pc->buffer;
-	} else
-		bp = pc->bp;
-	/*
-	 * Loop through each packet.
-	 */
-	n = 0;
-	while (cc > 0) {
-		/* avoid alignment issues here */
-		bcopy((char *)bp, (char *)&stamp, sizeof(stamp));
-		if (stamp.ens_stamplen != sizeof(stamp))
-			/* buffer is garbage, treat it as poison */
-			break;
-
-		p = bp + stamp.ens_stamplen;
-
-		buflen = stamp.ens_count;
-		if (buflen > pc->snapshot)
-			buflen = pc->snapshot;
-
-		/*
-		 * Short-circuit evaluation: if using BPF filter
-		 * in kernel, no need to do it now.
-		 */
-		if (fcode == 0 ||
-		    bpf_filter(fcode, p, stamp.ens_count, buflen)) {
-			struct pcap_pkthdr h;
-			pc->md.TotAccepted++;
-			h.ts = stamp.ens_tstamp;
-			h.len = stamp.ens_count;
-			h.caplen = buflen;
-			(*callback)(user, &h, p);
-			if (++n >= cnt && cnt > 0) {
-				inc = ENALIGN(buflen + stamp.ens_stamplen);
-				cc -= inc;
-				bp += inc;
-				pc->cc = cc;
-				pc->bp = bp;
-				return (n);
-			}
-		}
-		pc->md.TotPkts++;
-		pc->md.TotDrops += stamp.ens_dropped;
-		pc->md.TotMissed = stamp.ens_ifoverflows;
-		if (pc->md.OrigMissed < 0)
-			pc->md.OrigMissed = pc->md.TotMissed;
-
-		inc = ENALIGN(buflen + stamp.ens_stamplen);
-		cc -= inc;
-		bp += inc;
-	}
-	pc->cc = 0;
-	return (n);
-}
-
-int
-pcap_stats(pcap_t *p, struct pcap_stat *ps)
-{
-	ps->ps_recv = p->md.TotAccepted;
-	ps->ps_drop = p->md.TotDrops;
-	ps->ps_ifdrop = p->md.TotMissed - p->md.OrigMissed;
-	return (0);
-}
-
-pcap_t *
-pcap_open_live(char *device, int snaplen, int promisc, int to_ms, char *ebuf)
-{
-	pcap_t *p;
-	short enmode;
-	int backlog = -1;	/* request the most */
-	struct enfilter Filter;
-	struct endevp devparams;
-
-	p = (pcap_t *)malloc(sizeof(*p));
-	if (p == 0) {
-		strcpy(ebuf, "no swap");
-		return (0);
-	}
-	bzero(p, sizeof(*p));
-	p->fd = pfopen(device, 0);
-	if (p->fd < 0) {
-		sprintf(ebuf, "pf open: %s: %s\n\
-your system may not be properly configured; see \"man packetfilter(4)\"\n",
-			device, pcap_strerror(errno));
-		goto bad;
-	}
-	p->md.OrigMissed = -1;
-	enmode = ENTSTAMP|ENBATCH|ENNONEXCL;
-	if (promisc)
-		enmode |= ENPROMISC;
-	if (ioctl(p->fd, EIOCMBIS, (caddr_t)&enmode) < 0) {
-		sprintf(ebuf, "EIOCMBIS: %s", pcap_strerror(errno));
-		goto bad;
-	}
-#ifdef	ENCOPYALL
-	/* Try to set COPYALL mode so that we see packets to ourself */
-	enmode = ENCOPYALL;
-	(void)ioctl(p->fd, EIOCMBIS, (caddr_t)&enmode);/* OK if this fails */
-#endif
-	/* set the backlog */
-	if (ioctl(p->fd, EIOCSETW, (caddr_t)&backlog) < 0) {
-		sprintf(ebuf, "EIOCSETW: %s", pcap_strerror(errno));
-		goto bad;
-	}
-	/* set truncation */
-	if (ioctl(p->fd, EIOCTRUNCATE, (caddr_t)&snaplen) < 0) {
-		sprintf(ebuf, "EIOCTRUNCATE: %s", pcap_strerror(errno));
-		goto bad;
-	}
-	p->snapshot = snaplen;
-	/* accept all packets */
-	Filter.enf_Priority = 37;	/* anything > 2 */
-	Filter.enf_FilterLen = 0;	/* means "always true" */
-	if (ioctl(p->fd, EIOCSETF, (caddr_t)&Filter) < 0) {
-		sprintf(ebuf, "EIOCSETF: %s", pcap_strerror(errno));
-		goto bad;
-	}
-	/* discover interface type */
-	if (ioctl(p->fd, EIOCDEVP, (caddr_t)&devparams) < 0) {
-		sprintf(ebuf, "EIOCDEVP: %s", pcap_strerror(errno));
-		goto bad;
-	}
-	/* HACK: to compile prior to Ultrix 4.2 */
-#ifndef	ENDT_FDDI
-#define	ENDT_FDDI	4
-#endif
-	switch (devparams.end_dev_type) {
-	case ENDT_10MB:
-		p->linktype = DLT_EN10MB;
-		break;
-
-	case ENDT_FDDI:
-		p->linktype = DLT_FDDI;
-		break;
-
-	default:
-		/*
-		 * XXX
-		 * Currently, the Ultrix packet filter supports only
-		 * Ethernet and FDDI.  Eventually, support for SLIP and PPP
-		 * (and possibly others: T1?) should be added.
-		 */
-#ifdef notdef
-		warning(
-		   "Packet filter data-link type %d unknown, assuming Ethernet",
-		    devparams.end_dev_type);
-#endif
-		p->linktype = DLT_EN10MB;
-		break;
-	}
-
-	if (to_ms != 0) {
-		struct timeval timeout;
-		timeout.tv_sec = to_ms / 1000;
-		timeout.tv_usec = (to_ms * 1000) % 1000000;
-		if (ioctl(p->fd, EIOCSRTIMEOUT, (caddr_t)&timeout) < 0) {
-			sprintf(ebuf, "EIOCSRTIMEOUT: %s",
-				pcap_strerror(errno));
-			goto bad;
-		}
-	}
-	p->bufsize = BUFSPACE;
-	p->buffer = (u_char*)malloc(p->bufsize);
-
-	return (p);
- bad:
-	free(p);
-	return (0);
-}
-
-int
-pcap_setfilter(pcap_t *p, struct bpf_program *fp)
-{
-	/*
-	 * See if BIOCSETF works.  If it does, the kernel supports
-	 * BPF-style filters, and we do not need to do post-filtering.
-	 */
-	p->md.use_bpf = (ioctl(p->fd, BIOCSETF, (caddr_t)fp) >= 0);
-	if (p->md.use_bpf) {
-		struct bpf_version bv;
-
-		if (ioctl(p->fd, BIOCVERSION, (caddr_t)&bv) < 0) {
-			sprintf(p->errbuf, "BIOCVERSION: %s",
-				pcap_strerror(errno));
-			return (-1);
-		}
-		else if (bv.bv_major != BPF_MAJOR_VERSION ||
-			 bv.bv_minor < BPF_MINOR_VERSION) {
-			fprintf(stderr,
-		"requires bpf language %d.%d or higher; kernel is %d.%d",
-				BPF_MAJOR_VERSION, BPF_MINOR_VERSION,
-			      bv.bv_major, bv.bv_minor);
-			/* don't give up, just be inefficient */
-			p->md.use_bpf = 0;
-		}
-	} else
-		p->fcode = *fp;
-
-	/*XXX this goes in tcpdump*/
-	if (p->md.use_bpf)
-		fprintf(stderr, "tcpdump: Using kernel BPF filter\n");
-	else
-		fprintf(stderr, "tcpdump: Filtering in user process\n");
-	return (0);
-}
diff --git a/lib/libpcap/pcap-pf.h b/lib/libpcap/pcap-pf.h
deleted file mode 100644
index 65ca067..0000000
--- a/lib/libpcap/pcap-pf.h
+++ /dev/null
@@ -1,19 +0,0 @@
-/*
- * Copyright (c) 1990, 1994
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms are permitted
- * provided that the above copyright notice and this paragraph are
- * duplicated in all such forms and that any documentation,
- * advertising materials, and other materials related to such
- * distribution and use acknowledge that the software was developed
- * by the University of California, Lawrence Berkeley Laboratory,
- * Berkeley, CA.  The name of the University may not 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 MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- *
- * @(#) $Header: pcap-pf.h,v 1.2 94/06/14 20:06:33 leres Exp $ (LBL)
- */
diff --git a/lib/libpcap/pcap-snit.c b/lib/libpcap/pcap-snit.c
deleted file mode 100644
index 562b965..0000000
--- a/lib/libpcap/pcap-snit.c
+++ /dev/null
@@ -1,293 +0,0 @@
-/*
- * Copyright (c) 1990, 1991, 1992, 1993, 1994
- *	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  char rcsid[] =
-    "@(#)$Header: pcap-snit.c,v 1.33 94/06/23 13:51:17 leres Exp $ (LBL)";
-#endif
-
-/*
- * Modifications made to accomodate the new SunOS4.0 NIT facility by
- * Micky Liu, micky@cunixc.cc.columbia.edu, Columbia University in May, 1989.
- * This module now handles the STREAMS based NIT.
- */
-
-#include <sys/types.h>
-#include <sys/time.h>
-#include <sys/timeb.h>
-#include <sys/dir.h>
-#include <sys/fcntlcom.h>
-#include <sys/file.h>
-#include <sys/ioctl.h>
-#include <sys/socket.h>
-#include <sys/stropts.h>
-
-#include <net/bpf.h>
-#include <net/if.h>
-#include <net/nit.h>
-#include <net/nit_if.h>
-#include <net/nit_pf.h>
-#include <net/nit_buf.h>
-
-#include <netinet/in.h>
-#include <netinet/in_systm.h>
-#include <netinet/ip.h>
-#include <netinet/if_ether.h>
-#include <netinet/ip_var.h>
-#include <netinet/udp.h>
-#include <netinet/udp_var.h>
-#include <netinet/tcp.h>
-#include <netinet/tcpip.h>
-
-#include <ctype.h>
-#include <errno.h>
-#include <stdio.h>
-#include <string.h>
-
-#include "pcap-int.h"
-
-/*
- * The chunk size for NIT.  This is the amount of buffering
- * done for read calls.
- */
-#define CHUNKSIZE (2*1024)
-
-/*
- * The total buffer space used by NIT.
- */
-#define BUFSPACE (4*CHUNKSIZE)
-
-/* Forwards */
-static int nit_setflags(int, int, int, char *);
-
-int
-pcap_stats(pcap_t *p, struct pcap_stat *ps)
-{
-
-	*ps = p->md.stat;
-	return (0);
-}
-
-int
-pcap_read(pcap_t *p, int cnt, pcap_handler callback, u_char *user)
-{
-	register int cc, n;
-	register struct bpf_insn *fcode = p->fcode.bf_insns;
-	register u_char *bp, *cp, *ep;
-	register struct nit_bufhdr *hdrp;
-	register struct nit_iftime *ntp;
-	register struct nit_iflen *nlp;
-	register struct nit_ifdrops *ndp;
-	register int caplen;
-
-	cc = p->cc;
-	if (cc == 0) {
-		cc = read(p->fd, (char *)p->buffer, p->bufsize);
-		if (cc < 0) {
-			if (errno == EWOULDBLOCK)
-				return (0);
-			sprintf(p->errbuf, "pcap_read: %s",
-				pcap_strerror(errno));
-			return (-1);
-		}
-		bp = p->buffer;
-	} else
-		bp = p->bp;
-
-	/*
-	 * loop through each snapshot in the chunk
-	 */
-	n = 0;
-	ep = bp + cc;
-	while (bp < ep) {
-		++p->md.stat.ps_recv;
-		cp = bp;
-
-		/* get past NIT buffer  */
-		hdrp = (struct nit_bufhdr *)cp;
-		cp += sizeof(*hdrp);
-
-		/* get past NIT timer   */
-		ntp = (struct nit_iftime *)cp;
-		cp += sizeof(*ntp);
-
-		ndp = (struct nit_ifdrops *)cp;
-		p->md.stat.ps_drop = ndp->nh_drops;
-		cp += sizeof *ndp;
-
-		/* get past packet len  */
-		nlp = (struct nit_iflen *)cp;
-		cp += sizeof(*nlp);
-
-		/* next snapshot        */
-		bp += hdrp->nhb_totlen;
-
-		caplen = nlp->nh_pktlen;
-		if (caplen > p->snapshot)
-			caplen = p->snapshot;
-
-		if (bpf_filter(fcode, cp, nlp->nh_pktlen, caplen)) {
-			struct pcap_pkthdr h;
-			h.ts = ntp->nh_timestamp;
-			h.len = nlp->nh_pktlen;
-			h.caplen = caplen;
-			(*callback)(user, &h, cp);
-			if (++n >= cnt && cnt >= 0) {
-				p->cc = ep - bp;
-				p->bp = bp;
-				return (n);
-			}
-		}
-	}
-	p->cc = 0;
-	return (n);
-}
-
-static int
-nit_setflags(int fd, int promisc, int to_ms, char *ebuf)
-{
-	u_long flags;
-	struct strioctl si;
-	struct timeval timeout;
-
-	si.ic_timout = INFTIM;
-	if (to_ms != 0) {
-		timeout.tv_sec = to_ms / 1000;
-		timeout.tv_usec = (to_ms * 1000) % 1000000;
-		si.ic_cmd = NIOCSTIME;
-		si.ic_len = sizeof(timeout);
-		si.ic_dp = (char *)&timeout;
-		if (ioctl(fd, I_STR, (char *)&si) < 0) {
-			sprintf(ebuf, "NIOCSTIME: %s", pcap_strerror(errno));
-			return (-1);
-		}
-	}
-	flags = NI_TIMESTAMP | NI_LEN | NI_DROPS;
-	if (promisc)
-		flags |= NI_PROMISC;
-	si.ic_cmd = NIOCSFLAGS;
-	si.ic_len = sizeof(flags);
-	si.ic_dp = (char *)&flags;
-	if (ioctl(fd, I_STR, (char *)&si) < 0) {
-		sprintf(ebuf, "NIOCSFLAGS: %s", pcap_strerror(errno));
-		return (-1);
-	}
-	return (0);
-}
-
-pcap_t *
-pcap_open_live(char *device, int snaplen, int promisc, int to_ms, char *ebuf)
-{
-	struct strioctl si;		/* struct for ioctl() */
-	struct ifreq ifr;		/* interface request struct */
-	int chunksize = CHUNKSIZE;
-	int fd;
-	static char dev[] = "/dev/nit";
-	register pcap_t *p;
-
-	p = (pcap_t *)malloc(sizeof(*p));
-	if (p == NULL) {
-		strcpy(ebuf, pcap_strerror(errno));
-		return (NULL);
-	}
-
-	if (snaplen < 96)
-		/*
-		 * NIT requires a snapshot length of at least 96.
-		 */
-		snaplen = 96;
-
-	bzero(p, sizeof(*p));
-	p->fd = fd = open(dev, O_RDONLY);
-	if (fd < 0) {
-		sprintf(ebuf, "%s: %s", dev, pcap_strerror(errno));
-		goto bad;
-	}
-
-	/* arrange to get discrete messages from the STREAM and use NIT_BUF */
-	if (ioctl(fd, I_SRDOPT, (char *)RMSGD) < 0) {
-		sprintf(ebuf, "I_SRDOPT: %s", pcap_strerror(errno));
-		goto bad;
-	}
-	if (ioctl(fd, I_PUSH, "nbuf") < 0) {
-		sprintf(ebuf, "push nbuf: %s", pcap_strerror(errno));
-		goto bad;
-	}
-	/* set the chunksize */
-	si.ic_cmd = NIOCSCHUNK;
-	si.ic_timout = INFTIM;
-	si.ic_len = sizeof(chunksize);
-	si.ic_dp = (char *)&chunksize;
-	if (ioctl(fd, I_STR, (char *)&si) < 0) {
-		sprintf(ebuf, "NIOCSCHUNK: %s", pcap_strerror(errno));
-		goto bad;
-	}
-
-	/* request the interface */
-	strncpy(ifr.ifr_name, device, sizeof(ifr.ifr_name));
-	ifr.ifr_name[sizeof(ifr.ifr_name) - 1] = ' ';
-	si.ic_cmd = NIOCBIND;
-	si.ic_len = sizeof(ifr);
-	si.ic_dp = (char *)&ifr;
-	if (ioctl(fd, I_STR, (char *)&si) < 0) {
-		sprintf(ebuf, "NIOCBIND: %s: %s",
-			ifr.ifr_name, pcap_strerror(errno));
-		goto bad;
-	}
-
-	/* set the snapshot length */
-	si.ic_cmd = NIOCSSNAP;
-	si.ic_len = sizeof(snaplen);
-	si.ic_dp = (char *)&snaplen;
-	if (ioctl(fd, I_STR, (char *)&si) < 0) {
-		sprintf(ebuf, "NIOCSSNAP: %s", pcap_strerror(errno));
-		goto bad;
-	}
-	p->snapshot = snaplen;
-	if (nit_setflags(p->fd, promisc, to_ms, ebuf) < 0)
-		goto bad;
-
-	(void)ioctl(fd, I_FLUSH, (char *)FLUSHR);
-	/*
-	 * NIT supports only ethernets.
-	 */
-	p->linktype = DLT_EN10MB;
-
-	p->bufsize = BUFSPACE;
-	p->buffer = (u_char *)malloc(p->bufsize);
-	if (p->buffer == NULL) {
-		strcpy(ebuf, pcap_strerror(errno));
-		goto bad;
-	}
-	return (p);
- bad:
-	if (fd >= 0)
-		close(fd);
-	free(p);
-	return (NULL);
-}
-
-int
-pcap_setfilter(pcap_t *p, struct bpf_program *fp)
-{
-
-	p->fcode = *fp;
-	return (0);
-}
diff --git a/lib/libpcap/pcap-snoop.c b/lib/libpcap/pcap-snoop.c
deleted file mode 100644
index 50f9785..0000000
--- a/lib/libpcap/pcap-snoop.c
+++ /dev/null
@@ -1,195 +0,0 @@
-/*
- * Copyright (c) 1993, 1994
- *	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  char rcsid[] =
-    "@(#)$Header: pcap-snoop.c,v 1.6 94/01/31 05:26:09 leres Exp $ (LBL)";
-#endif
-
-#include <sys/param.h>
-#include <stdio.h>
-#include <netdb.h>
-#include <ctype.h>
-#include <signal.h>
-#include <errno.h>
-#include <sys/time.h>
-#include <sys/socket.h>
-#include <sys/file.h>
-#include <sys/ioctl.h>
-
-#include <net/raw.h>
-
-#include <net/if.h>
-#include <netinet/in.h>
-#include <netinet/in_systm.h>
-#include <netinet/ip.h>
-#include <netinet/if_ether.h>
-#include <netinet/ip_var.h>
-#include <netinet/udp.h>
-#include <netinet/udp_var.h>
-#include <netinet/tcp.h>
-#include <netinet/tcpip.h>
-#include <net/bpf.h>
-
-#include "pcap-int.h"
-
-static int hdrpad;					/* XXX */
-
-int
-pcap_read(pcap_t *p, int cnt, pcap_handler callback, u_char *user)
-{
-	int cc;
-	register struct snoopheader *sh;
-	register int datalen;
-	register int caplen;
-	register u_char *cp;
- again:
-	cc = read(p->fd, (char *)p->buffer, p->bufsize);
-	if (cc < 0) {
-		switch (errno) {
-		case EWOULDBLOCK:
-			return (0);			/* XXX */
-		}
-		sprintf(p->errbuf, "read: %s", pcap_strerror(errno));
-		return (-1);
-	}
-	sh = (struct snoopheader *)p->buffer;
-	datalen = sh->snoop_packetlen;
-	caplen = (datalen < p->snapshot) ? datalen : p->snapshot;
-	cp = (u_char *)(sh + 1) + hdrpad;		/* XXX */
-
-	if (p->fcode.bf_insns == NULL ||
-	    bpf_filter(p->fcode.bf_insns, cp, datalen, caplen)) {
-		struct pcap_pkthdr h;
-		++p->md.stat.ps_recv;
-		h.ts = sh->snoop_timestamp;
-		h.len = datalen;
-		h.caplen = caplen;
-		(*callback)(user, &h, cp);
-		return (1);
-	}
-	return (0);
-}
-
-int
-pcap_stats(pcap_t *p, struct pcap_stat *ps)
-{
-	register struct rawstats *rs;
-	struct rawstats rawstats;
-
-	rs = &rawstats;
-	bzero((char *)rs, sizeof(*rs));
-	if (ioctl(p->fd, SIOCRAWSTATS, (char *)rs) < 0) {
-		sprintf(p->errbuf, "SIOCRAWSTATS: %s", pcap_strerror(errno));
-		return (-1);
-	}
-
-	p->md.stat.ps_drop =
-	    rs->rs_snoop.ss_ifdrops + rs->rs_snoop.ss_sbdrops +
-	    rs->rs_drain.ds_ifdrops + rs->rs_drain.ds_sbdrops;
-
-	*ps = p->md.stat;
-	return (0);
-}
-
-/* XXX can't disable promiscuous */
-pcap_t *
-pcap_open_live(char *device, int snaplen, int promisc, int to_ms, char *ebuf)
-{
-	pcap_t *p;
-	struct sockaddr_raw sr;
-	int fd;
-	int v;
-	struct snoopfilter sf;
-
-	p = (pcap_t *)malloc(sizeof(*p));
-	if (p == NULL) {
-		strcpy(ebuf, "no swap");
-		return (0);
-	}
-	bzero(p, sizeof(*p));
-	p->fd = -1;
-	p->bufsize = 4096;				/* XXX */
-	p->buffer = (u_char *)malloc(p->bufsize);
-	if (p->buffer == NULL) {
-		strcpy(ebuf, "no swap");
-		goto bad;
-	}
-	fd = p->fd = socket(PF_RAW, SOCK_RAW, RAWPROTO_SNOOP);
-	if (fd < 0) {
-		sprintf(ebuf, "snoop socket: %s", pcap_strerror(errno));
-		goto bad;
-	}
-	sr.sr_family = AF_RAW;
-	sr.sr_port = 0;
-	(void)strncpy(sr.sr_ifname, device, sizeof(sr.sr_ifname));
-	if (bind(fd, (struct sockaddr *)&sr, sizeof(sr))) {
-		sprintf(ebuf, "snoop bind: %s", pcap_strerror(errno));
-		goto bad;
-	}
-	bzero((char *)&sf, sizeof(sf));
-	if (ioctl(fd, SIOCADDSNOOP, &sf) < 0) {
-		sprintf(ebuf, "SIOCADDSNOOP: %s", pcap_strerror(errno));
-		goto bad;
-	}
-	v = 64 * 1024;
-	(void)setsockopt(fd, SOL_SOCKET, SO_RCVBUF, (char *)&v, sizeof(v));
-	if (ioctl(fd, SIOCSNOOPLEN, &snaplen) < 0) {
-		sprintf(ebuf, "SIOCSNOOPLEN: %s", pcap_strerror(errno));
-		goto bad;
-	}
-	p->snapshot = snaplen;
-	v = 1;
-	if (ioctl(fd, SIOCSNOOPING, &v) < 0) {
-		sprintf(ebuf, "SIOCSNOOPING: %s", pcap_strerror(errno));
-		goto bad;
-	}
-	/*
-	 * XXX hack - map device name to link later type
-	 */
-	if (strncmp("et", device, 2) == 0 ||
-	    strncmp("ec", device, 2) == 0) {
-		p->linktype = DLT_EN10MB;
-		hdrpad = RAW_HDRPAD(sizeof(struct ether_header));
-	} else if (strncmp("ipg", device, 3) == 0 ||
-		   strncmp("xpi", device, 3) == 0) {
-		p->linktype = DLT_FDDI;
-		hdrpad = 3;				/* XXX yeah? */
-	} else {
-		sprintf(ebuf, "snoop: unknown physical layer type");
-		goto bad;
-	}
-	return (p);
- bad:
-	if (fd >= 0)
-		close(fd);
-	if (p->buffer != NULL)
-		free(p->buffer);
-	free(p);
-	return (0);
-}
-
-int
-pcap_setfilter(pcap_t *p, struct bpf_program *fp)
-{
-
-	p->fcode = *fp;
-	return (0);
-}
diff --git a/lib/libpcap/pcap.3 b/lib/libpcap/pcap.3
deleted file mode 100644
index d298b40..0000000
--- a/lib/libpcap/pcap.3
+++ /dev/null
@@ -1,325 +0,0 @@
-.\" Copyright (c) 1994
-.\"	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.
-.\"
-.TH PCAP 3  "14 Jun 1994"
-.SH NAME
-pcap \- Packet Capture library
-.SH SYNOPSIS
-.nf
-.ft B
-#include <sys/types.h>
-#include <stdio.h>
-#include <pcap.h>
-.ft
-.LP
-.ft B
-pcap_t *pcap_open_live(char *device, int snaplen,
-.ti +8
-int promisc, int to_ms, char *ebuf)
-pcap_t *pcap_open_offline(char *fname, char *ebuf)
-pcap_dumper_t *pcap_dump_open(pcap_t *p, char *fname)
-.ft
-.LP
-.ft B
-char errbuf[PCAP_ERRBUF_SIZE];
-char *pcap_lookupdev(char *errbuf)
-int pcap_lookupnet(char *device, u_long *netp,
-.ti +8
-u_long *maskp, char *errbuf)
-.ft
-.LP
-.ft B
-int pcap_dispatch(pcap_t *p, int cnt,
-.ti +8
-pcap_handler callback, u_char *user)
-int pcap_loop(pcap_t *p, int cnt,
-.ti +8
-pcap_handler callback, u_char *user)
-void pcap_dump(u_char *user, struct pcap_pkthdr *h,
-.ti +8
-u_char *sp)
-.ft
-.LP
-.ft B
-int pcap_immediate(pcap_t *p)
-.ft
-.LP
-.ft B
-int pcap_compile(pcap_t *p, struct bpf_program *fp,
-.ti +8
-char *str, int optimize, u_long netmask)
-int pcap_setfilter(pcap_t *p, struct bpf_program *fp)
-.ft
-.LP
-.ft B
-u_char *pcap_next(pcap_t *p, struct pcap_pkthdr *h)
-.ft
-.LP
-.ft B
-int pcap_datalink(pcap_t *p)
-int pcap_snapshot(pcap_t *p)
-int pcap_is_swapped(pcap_t *p)
-int pcap_major_version(pcap_t *p)
-int pcap_minor_version(pcap_t *p)
-int pcap_stats(pcap_t *p, struct pcap_stat *ps)
-FILE *pcap_file(pcap_t *p)
-int pcap_fileno(pcap_t *p)
-void pcap_perror(pcap_t *p, char *prefix)
-char *pcap_geterr(pcap_t *p)
-char *pcap_strerror(int error)
-.ft
-.LP
-.ft B
-void pcap_close(pcap_t *p)
-void pcap_dump_close(pcap_dumper_t *p)
-.ft
-.fi
-.SH DESCRIPTION
-The Packet Capture library
-provides a high level interface to packet capture systems. All packets
-on the network, even those destined for other hosts, are accessible
-through this mechanism.
-.PP
-.SH ROUTINES
-.B pcap_open_live()
-is used to obtain a packet capture descriptor to look
-at packets on the network.
-.I device
-is a string that specifies the network device to open.
-.I snaplen
-specifies the maximum number of bytes to capture.
-.I to_ms
-specifies the read timeout in milliseconds.
-.I ebuf
-is used to return error text and is only set when
-.B pcap_open_live()
-fails and returns
-.BR NULL .
-.PP
-.B pcap_open_offline()
-is called to open a ``savefile'' for reading.
-.I fname
-specifies the name of the file to open. The file has
-the same format as those used by
-.B tcpdump(1)
-and
-.BR tcpslice(1) .
-The name "-" in a synonym for
-.BR stdin .
-.I ebuf
-is used to return error text and is only set when
-.B pcap_open_offline()
-fails and returns
-.BR NULL .
-.PP
-.B pcap_dump_open()
-is called to open a ``savefile'' for writing. The name "-" in a synonym
-for
-.BR stdin .
-.B NULL
-is returned on failure.
-.I p
-is a
-.I pcap
-struct as returned by
-.B pcap_open_offline()
-or
-.BR pcap_open_live() .
-.I fname
-specifies the name of the file to open.
-If
-.B NULL
-is returned,
-.B pcap_geterr()
-can be used to get the error text.
-.PP
-.B pcap_lookupdev()
-returns a pointer to a network device suitable for use with
-.B pcap_open_live()
-and
-.BR pcap_lookupnet() .
-If there is an error,
-.B NULL
-is returned and
-.I errbuf
-is filled in with with an appropriate error message.
-.PP
-.B pcap_lookupnet()
-is used to determine the network number and mask
-associated with the network device
-.BR device .
-Both
-.I netp
-and
-.I maskp
-are
-.I u_long
-pointers.
-A return of -1 indicates an error in which case
-.I errbuf
-is filled in with with an appropriate error message.
-.PP
-.B pcap_dispatch()
-is used to collect and process packets.
-.I cnt
-specifies the maximum number of packets to process before returning. A
-.I cnt
-of -1 processes all the packets received in one buffer. A
-.I cnt
-of 0 processes all packets until an error occurs (or
-.B EOF
-is reached).
-.I callback
-specifies a routine to be called with three arguments:
-a
-.I u_char
-pointer which is passed in from
-.BR pcap_dispatch() ,
-a pointer to the
-.I pcap_pkthdr
-struct (which precede the actual network headers and data),
-and a length. The number of packets read is returned.
-Zero is returned when
-.B EOF
-is reached in a ``savefile.'' A return of -1 indicates
-an error in which case
-.B pcap_perror()
-or
-.BR pcap_geterr()
-may be used to display the error text.
-.PP
-.B pcap_dump()
-outputs a packet to the ``savefile'' opened with
-.BR pcap_dump_open() .
-Note that its calling arguments are suitable for use with
-.BR pcap_dispatch() .
-.ft B
-(??? this guy is kind of weird.)
-.ft
-.PP
-.B pcap_immediate()
-sets ``immediate'' mode.
-If this isn't supported by the under lying packet capture, -1 is
-returned and the error text can be obtained with
-.B pcap_perror()
-or
-.BR pcap_geterr() .
-.PP
-.B pcap_compile()
-is used to compile the string
-.I str
-into a filter program.
-.I program
-is a pointer to a
-.I bpf_program
-struct and is filled in by
-.BR pcap_compile() .
-.I optimize
-controls whether optimization on the resulting code is performed.
-.I netmask
-specifies the netmask of the local net.
-.PP
-.B pcap_setfilter()
-is used to specify the a filter program.
-.I fp
-is a pointer to an array of
-.I bpf_program
-struct, usually the result of a call to
-.BR pcap_compile() .
-.PP
-.B pcap_loop()
-is similar to
-.B pcap_dispatch()
-except it keeps reading packets until
-.I cnt
-packets are processed or an error occurs.
-A negative
-.I cnt
-causes
-.B pcap_loop()
-to loop forever (or at least until an error occurs).
-.PP
-.B pcap_next()
-returns a
-.I u_char
-pointer to the next packet.
-.PP
-.B pcap_datalink()
-returns the link layer type, e.g.
-.BR DLT_EN10MB .
-.PP
-.B pcap_snapshot()
-returns the snapshot length specified when
-.B pcap_open_live
-was called.
-.PP
-.B pcap_is_swapped()
-returns true if the current ``savefile'' uses a different byte order
-than the current system.
-.PP
-.B pcap_major_version()
-returns the major number of the version of the pcap used to write the
-savefile.
-.PP
-.B pcap_minor_version()
-returns the major number of the version of the pcap used to write the
-savefile.
-.PP
-.B pcap_file()
-returns the name of the ``savefile.''
-.PP
-.B int pcap_stats()
-returns 0 and fills in a
-.B pcap_stat
-struct with packet statistics. If there is an error or the under lying
-packet capture doesn't support packet statistics, -1 is returned and
-the error text can be obtained with
-.B pcap_perror()
-or
-.BR pcap_geterr() .
-.PP
-.B pcap_fileno()
-returns the file descriptor number of the ``savefile.''
-.PP
-.B pcap_perror()
-prints the text of the last pcap library error on
-.BR stderr ,
-prefixed by
-.IR prefix .
-.PP
-.B pcap_geterr()
-returns the error text pertaining to the last pcap library error.
-.PP
-.B pcap_strerror()
-is provided in case
-.BR strerror (1)
-isn't available.
-.PP
-.B pcap_close()
-closes the files associated with
-.I p
-and deallocates resources.
-.PP
-.B pcap_dump_close()
-closes the ``savefile.''
-.PP
-.SH SEE ALSO
-tcpdump(1), tcpslice(1)
-.SH BUGS
-.SH HISTORY
diff --git a/lib/libpcap/pcap.c b/lib/libpcap/pcap.c
deleted file mode 100644
index 398b6f3..0000000
--- a/lib/libpcap/pcap.c
+++ /dev/null
@@ -1,173 +0,0 @@
-/*
- * Copyright (c) 1993, 1994
- *	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 the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the Computer Systems
- *	Engineering Group at Lawrence Berkeley Laboratory.
- * 4. Neither the name of the University nor of the Laboratory may be used
- *    to endorse or promote products derived from this software without
- *    specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#ifndef lint
-static char rcsid[] =
-    "@(#) $Header: /home/ncvs/src/lib/libpcap/pcap.c,v 1.3 1995/05/30 05:47:24 rgrimes Exp $ (LBL)";
-#endif
-
-#include <sys/types.h>
-
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-
-#include "pcap-int.h"
-
-int
-pcap_dispatch(pcap_t *p, int cnt, pcap_handler callback, u_char *user)
-{
-	if (p->sf.rfile != NULL)
-		return (pcap_offline_read(p, cnt, callback, user));
-	else
-		return (pcap_read(p, cnt, callback, user));
-}
-
-int
-pcap_loop(pcap_t *p, int cnt, pcap_handler callback, u_char *user)
-{
-	for (;;) {
-		int n = pcap_dispatch(p, cnt, callback, user);
-		if (n < 0)
-			return (n);
-		if (cnt > 0) {
-			cnt -= n;
-			if (cnt <= 0)
-				return (0);
-		}
-	}
-}
-
-struct singleton {
-	struct pcap_pkthdr *hdr;
-	const u_char *pkt;
-};
-
-
-static void
-pcap_oneshot(u_char *userData, const struct pcap_pkthdr *h, const u_char *pkt)
-{
-	struct singleton *sp = (struct singleton *)userData;
-	*sp->hdr = *h;
-	sp->pkt = pkt;
-}
-
-const u_char *
-pcap_next(pcap_t *p, struct pcap_pkthdr *h)
-{
-	struct singleton s;
-
-	s.hdr = h;
-	if (pcap_dispatch(p, 1, pcap_oneshot, (u_char*)&s) < 0)
-		return (0);
-	return (s.pkt);
-}
-
-int
-pcap_datalink(pcap_t *p)
-{
-	return (p->linktype);
-}
-
-int
-pcap_snapshot(pcap_t *p)
-{
-	return (p->snapshot);
-}
-
-int
-pcap_is_swapped(pcap_t *p)
-{
-	return (p->sf.swapped);
-}
-
-int
-pcap_major_version(pcap_t *p)
-{
-	return (p->sf.version_major);
-}
-
-int
-pcap_minor_version(pcap_t *p)
-{
-	return (p->sf.version_minor);
-}
-
-FILE *
-pcap_file(pcap_t *p)
-{
-	return (p->sf.rfile);
-}
-
-int
-pcap_fileno(pcap_t *p)
-{
-	return (p->fd);
-}
-
-void
-pcap_perror(pcap_t *p, char *prefix)
-{
-	fprintf(stderr, "%s: %s\n", prefix, p->errbuf);
-}
-
-char *
-pcap_geterr(pcap_t *p)
-{
-	return (p->errbuf);
-}
-
-/*
- * Not all systems have strerror().
- */
-char *
-pcap_strerror(int errnum)
-{
-	return strerror(errnum);
-}
-
-void
-pcap_close(pcap_t *p)
-{
-	/*XXX*/
-	if (p->fd >= 0)
-		close(p->fd);
-	if (p->sf.rfile != NULL) {
-		fclose(p->sf.rfile);
-		if (p->sf.base != NULL)
-			free(p->sf.base);
-	} else if (p->buffer != NULL)
-		free(p->buffer);
-
-	free(p);
-}
diff --git a/lib/libpcap/pcap.h b/lib/libpcap/pcap.h
deleted file mode 100644
index 506b15b..0000000
--- a/lib/libpcap/pcap.h
+++ /dev/null
@@ -1,137 +0,0 @@
-/*
- * Copyright (c) 1993, 1994
- *	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 the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the Computer Systems
- *	Engineering Group at Lawrence Berkeley Laboratory.
- * 4. Neither the name of the University nor of the Laboratory may be used
- *    to endorse or promote products derived from this software without
- *    specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * @(#) $Header: pcap.h,v 1.15 94/06/14 20:03:34 leres Exp $ (LBL)
- */
-
-#ifndef lib_pcap_h
-#define lib_pcap_h
-
-#include <sys/types.h>
-#include <sys/time.h>
-
-#include <net/bpf.h>
-
-#include <stdio.h>
-
-#define PCAP_VERSION_MAJOR 2
-#define PCAP_VERSION_MINOR 4
-
-#define PCAP_ERRBUF_SIZE 256
-
-/*
- * Compatibility for systems that have a bpf.h that
- * predates the bpf typedefs for 64-bit support.
- */
-#if BPF_RELEASE - 0 < 199406
-typedef	long bpf_int32;
-typedef	u_long bpf_u_int32;
-#endif
-
-typedef struct pcap pcap_t;
-typedef struct pcap_dumper pcap_dumper_t;
-
-/*
- * The first record in the file contains saved values for some
- * of the flags used in the printout phases of tcpdump.
- * Many fields here are longs so compilers won't insert unwanted
- * padding; these files need to be interchangeable across architectures.
- */
-struct pcap_file_header {
-	bpf_u_int32 magic;
-	u_short version_major;
-	u_short version_minor;
-	bpf_int32 thiszone;	/* gmt to local correction */
-	bpf_u_int32 sigfigs;	/* accuracy of timestamps */
-	bpf_u_int32 snaplen;	/* max length saved portion of each pkt */
-	bpf_u_int32 linktype;	/* data link type (DLT_*) */
-};
-
-/*
- * Each packet in the dump file is prepended with this generic header.
- * This gets around the problem of different headers for different
- * packet interfaces.
- */
-struct pcap_pkthdr {
-	struct timeval ts;	/* time stamp */
-	bpf_u_int32 caplen;	/* length of portion present */
-	bpf_u_int32 len;	/* length this packet (off wire) */
-};
-
-/*
- * As returned by the pcap_stats()
- */
-struct pcap_stat {
-	u_int ps_recv;		/* number of packets received */
-	u_int ps_drop;		/* number of packets dropped */
-	u_int ps_ifdrop;	/* drops by interface XXX not yet supported */
-};
-
-typedef void (*pcap_handler)(u_char *, const struct pcap_pkthdr *,
-			     const u_char *);
-
-char	*pcap_lookupdev(char *);
-int	pcap_lookupnet(char *, u_long *, u_long *, char *);
-pcap_t	*pcap_open_live(char *, int, int, int, char *);
-pcap_t	*pcap_open_offline(char *, char *);
-void	pcap_close(pcap_t *);
-int	pcap_loop(pcap_t *, int, pcap_handler, u_char *);
-int	pcap_dispatch(pcap_t *, int, pcap_handler, u_char *);
-const u_char*
-	pcap_next(pcap_t *, struct pcap_pkthdr *);
-int	pcap_stats(pcap_t *, struct pcap_stat *);
-int	pcap_setfilter(pcap_t *, struct bpf_program *);
-void	pcap_perror(pcap_t *, char *);
-char	*pcap_strerror(int);
-char	*pcap_geterr(pcap_t *);
-int	pcap_compile(pcap_t *, struct bpf_program *, char *, int, u_long);
-/* XXX */
-int	pcap_freecode(pcap_t *, struct bpf_program *);
-int	pcap_datalink(pcap_t *);
-int	pcap_snapshot(pcap_t *);
-int	pcap_is_swapped(pcap_t *);
-int	pcap_major_version(pcap_t *);
-int	pcap_minor_version(pcap_t *);
-
-/* XXX */
-FILE	*pcap_file(pcap_t *);
-int	pcap_fileno(pcap_t *);
-
-pcap_dumper_t *pcap_dump_open(pcap_t *, char *);
-void	pcap_dump_close(pcap_dumper_t *);
-void	pcap_dump(u_char *, const struct pcap_pkthdr *, const u_char *);
-
-/* XXX this guy lives in the bpf tree */
-u_int	bpf_filter(struct bpf_insn *, u_char *, u_int, u_int);
-char	*bpf_image(struct bpf_insn *, int);
-
-#endif
diff --git a/lib/libpcap/savefile.c b/lib/libpcap/savefile.c
deleted file mode 100644
index 90ee723..0000000
--- a/lib/libpcap/savefile.c
+++ /dev/null
@@ -1,285 +0,0 @@
-/*
- * Copyright (c) 1993, 1994
- *	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 char rcsid[] =
-    "@(#)$Header: savefile.c,v 1.16 94/06/20 19:07:56 leres Exp $ (LBL)";
-#endif
-
-/*
- * savefile.c - supports offline use of tcpdump
- *	Extraction/creation by Jeffrey Mogul, DECWRL
- *	Modified by Steve McCanne, LBL.
- *
- * Used to save the received packet headers, after filtering, to
- * a file, and then read them later.
- * The first record in the file contains saved values for the machine
- * dependent values so we can print the dump file on any architecture.
- */
-
-#include <sys/types.h>
-#include <sys/time.h>
-
-#include <net/bpf.h>
-
-#include <errno.h>
-#include <memory.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-
-#include "pcap-int.h"
-
-#define TCPDUMP_MAGIC 0xa1b2c3d4
-
-/*
- * We use the "receiver-makes-right" approach to byte order,
- * because time is at a premium when we are writing the file.
- * In other words, the pcap_file_header and pcap_pkthdr,
- * records are written in host byte order.
- * Note that the packets are always written in network byte order.
- *
- * ntoh[ls] aren't sufficient because we might need to swap on a big-endian
- * machine (if the file was written in little-end order).
- */
-#define	SWAPLONG(y) \
-((((y)&0xff)<<24) | (((y)&0xff00)<<8) | (((y)&0xff0000)>>8) | (((y)>>24)&0xff))
-#define	SWAPSHORT(y) \
-	( (((y)&0xff)<<8) | (((y)&0xff00)>>8) )
-
-#define SFERR_TRUNC		1
-#define SFERR_BADVERSION	2
-#define SFERR_BADF		3
-#define SFERR_EOF		4 /* not really an error, just a status */
-
-static int
-sf_write_header(FILE *fp, int linktype, int thiszone, int snaplen)
-{
-	struct pcap_file_header hdr;
-
-	hdr.magic = TCPDUMP_MAGIC;
-	hdr.version_major = PCAP_VERSION_MAJOR;
-	hdr.version_minor = PCAP_VERSION_MINOR;
-
-	hdr.thiszone = thiszone;
-	hdr.snaplen = snaplen;
-	hdr.sigfigs = 0;
-	hdr.linktype = linktype;
-
-	if (fwrite((char *)&hdr, sizeof(hdr), 1, fp) != 1)
-		return (-1);
-
-	return (0);
-}
-
-static void
-swap_hdr(struct pcap_file_header *hp)
-{
-	hp->version_major = SWAPSHORT(hp->version_major);
-	hp->version_minor = SWAPSHORT(hp->version_minor);
-	hp->thiszone = SWAPLONG(hp->thiszone);
-	hp->sigfigs = SWAPLONG(hp->sigfigs);
-	hp->snaplen = SWAPLONG(hp->snaplen);
-	hp->linktype = SWAPLONG(hp->linktype);
-}
-
-pcap_t *
-pcap_open_offline(char *fname, char *errbuf)
-{
-	register pcap_t *p;
-	register FILE *fp;
-	struct pcap_file_header hdr;
-	int linklen;
-
-	p = (pcap_t *)malloc(sizeof(*p));
-	if (p == NULL) {
-		strcpy(errbuf, "out of swap");
-		return (NULL);
-	}
-
-#ifdef notdef
-	bzero(p, sizeof(*p));
-#else
-	memset(p, 0, sizeof(*p));
-#endif
-	/*
-	 * Set this field so we don't close stdin in pcap_close!
-	 */
-	p->fd = -1;
-
-	if (fname[0] == '-' && fname[1] == '\0')
-		fp = stdin;
-	else {
-		fp = fopen(fname, "r");
-		if (fp == NULL) {
-			sprintf(errbuf, "%s: %s", fname, pcap_strerror(errno));
-			goto bad;
-		}
-	}
-	if (fread((char *)&hdr, sizeof(hdr), 1, fp) != 1) {
-		sprintf(errbuf, "fread: %s", pcap_strerror(errno));
-		goto bad;
-	}
-	if (hdr.magic != TCPDUMP_MAGIC) {
-		if (SWAPLONG(hdr.magic) != TCPDUMP_MAGIC) {
-			sprintf(errbuf, "bad dump file format");
-			goto bad;
-		}
-		p->sf.swapped = 1;
-		swap_hdr(&hdr);
-	}
-	if (hdr.version_major < PCAP_VERSION_MAJOR) {
-		sprintf(errbuf, "archaic file format");
-		goto bad;
-	}
-	p->tzoff = hdr.thiszone;
-	p->snapshot = hdr.snaplen;
-	p->linktype = hdr.linktype;
-	p->sf.rfile = fp;
-	p->bufsize = hdr.snaplen;
-	/* Align link header as required for proper data alignment */
-	linklen = 14;					/* XXX */
-	p->sf.base = (u_char *)malloc(p->bufsize + BPF_ALIGNMENT);
-	p->buffer = p->sf.base + BPF_ALIGNMENT - (linklen % BPF_ALIGNMENT);
-	p->sf.version_major = hdr.version_major;
-	p->sf.version_minor = hdr.version_minor;
-
-	return (p);
- bad:
-	free(p);
-	return (NULL);
-}
-
-/*
- * Read sf_readfile and return the next packet.  Return the header in hdr
- * and the contents in buf.  Return 0 on success, SFERR_EOF if there were
- * no more packets, and SFERR_TRUNC if a partial packet was encountered.
- */
-static int
-sf_next_packet(pcap_t *p, struct pcap_pkthdr *hdr, u_char *buf, int buflen)
-{
-	FILE *fp = p->sf.rfile;
-
-	/* read the stamp */
-	if (fread((char *)hdr, sizeof(struct pcap_pkthdr), 1, fp) != 1) {
-		/* probably an EOF, though could be a truncated packet */
-		return (1);
-	}
-
-	if (p->sf.swapped) {
-		/* these were written in opposite byte order */
-		hdr->caplen = SWAPLONG(hdr->caplen);
-		hdr->len = SWAPLONG(hdr->len);
-		hdr->ts.tv_sec = SWAPLONG(hdr->ts.tv_sec);
-		hdr->ts.tv_usec = SWAPLONG(hdr->ts.tv_usec);
-	}
-	/*
-	 * We interchanged the caplen and len fields at version 2.3,
-	 * in order to match the bpf header layout.  But unfortunately
-	 * some files were written with version 2.3 in their headers
-	 * but without the interchanged fields.
-	 */
-	if (p->sf.version_minor < 3 ||
-	    (p->sf.version_minor == 3 && hdr->caplen > hdr->len)) {
-		int t = hdr->caplen;
-		hdr->caplen = hdr->len;
-		hdr->len = t;
-	}
-
-	if (hdr->caplen > buflen) {
-		sprintf(p->errbuf, "bad dump file format");
-		return (-1);
-	}
-
-	/* read the packet itself */
-
-	if (fread((char *)buf, hdr->caplen, 1, fp) != 1) {
-		sprintf(p->errbuf, "truncated dump file");
-		return (-1);
-	}
-	return (0);
-}
-
-/*
- * Print out packets stored in the file initialized by sf_read_init().
- * If cnt > 0, return after 'cnt' packets, otherwise continue until eof.
- */
-int
-pcap_offline_read(pcap_t *p, int cnt, pcap_handler callback, u_char *user)
-{
-	struct bpf_insn *fcode = p->fcode.bf_insns;
-	int status = 0;
-	int n = 0;
-
-	while (status == 0) {
-		struct pcap_pkthdr h;
-
-		status = sf_next_packet(p, &h, p->buffer, p->bufsize);
-		if (status)
-			return (-1);
-
-		if (fcode == NULL ||
-		    bpf_filter(fcode, p->buffer, h.len, h.caplen)) {
-			(*callback)(user, &h, p->buffer);
-			if (++n >= cnt && cnt > 0)
-				break;
-		}
-	}
-	/*XXX this breaks semantics tcpslice expects */
-	return (n);
-}
-
-/*
- * Output a packet to the initialized dump file.
- */
-void
-pcap_dump(u_char *user, const struct pcap_pkthdr *h, const u_char *sp)
-{
-	FILE * f = (FILE *)user;
-	(void)fwrite((char *)h, sizeof(*h), 1, f);
-	(void)fwrite((char *)sp, h->caplen, 1, f);
-}
-
-/*
- * Initialize so that sf_write() will output to the file named 'fname'.
- */
-pcap_dumper_t *
-pcap_dump_open(pcap_t *p, char *fname)
-{
-	FILE *f;
-	if (fname[0] == '-' && fname[1] == '\0')
-		f = stdout;
-	else {
-		f = fopen(fname, "w");
-		if (f == NULL) {
-			sprintf(p->errbuf, "%s: %s",
-			    fname, pcap_strerror(errno));
-			return (NULL);
-		}
-	}
-	(void)sf_write_header(f, p->linktype, p->tzoff, p->snapshot);
-	return ((pcap_dumper_t *)f);
-}
-
-void
-pcap_dump_close(pcap_dumper_t *p)
-{
-	fclose((FILE *)p);
-}
diff --git a/lib/libpcap/scanner.l b/lib/libpcap/scanner.l
deleted file mode 100644
index c2ff10d..0000000
--- a/lib/libpcap/scanner.l
+++ /dev/null
@@ -1,193 +0,0 @@
-%{
-/*
- * Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994
- *	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 char rcsid[] =
-    "@(#) $Header: scanner.l,v 1.40 94/06/10 17:21:44 mccanne Exp $ (LBL)";
-#endif
-
-#include <sys/types.h>
-#include <sys/time.h>
-
-#include <ctype.h>
-#include <pcap.h>
-#include <pcap-namedb.h>
-
-#include "gencode.h"
-#include "tokdefs.h"
-
-#ifndef __GNUC__
-#define inline
-#endif
-
-static int stoi(char *);
-static inline int xdtoi(int);
-
-#ifdef FLEX_SCANNER
-#undef YY_INPUT
-#define YY_INPUT(buf, result, max)\
- {\
-	char *src = in_buffer;\
-	int i;\
-\
-	if (*src == 0)\
-		result = YY_NULL;\
-	else {\
-		for (i = 0; *src && i < max; ++i)\
-			buf[i] = *src++;\
-		in_buffer += i;\
-		result = i;\
-	}\
- }
-#else
-#undef getc
-#define getc(fp)  (*in_buffer == 0 ? EOF : *in_buffer++)
-#endif
-
-#define yylval pcap_lval
-extern YYSTYPE yylval;
-
-static char *in_buffer;
-
-%}
-
-N		([0-9]+|(0X|0x)[0-9A-Fa-f]+)
-B		([0-9A-Fa-f][0-9A-Fa-f]?)
-
-%a 3000
-
-%%
-dst		return DST;
-src		return SRC;
-
-link|ether|ppp|slip  return LINK;
-fddi		return LINK;
-arp		return ARP;
-rarp		return RARP;
-ip		return IP;
-tcp		return TCP;
-udp		return UDP;
-icmp		return ICMP;
-
-decnet		return DECNET;
-lat		return LAT;
-moprc		return MOPRC;
-mopdl		return MOPDL;
-
-host		return HOST;
-net		return NET;
-port		return PORT;
-proto		return PROTO;
-
-gateway		return GATEWAY;
-
-less		return LESS;
-greater		return GREATER;
-byte		return BYTE;
-broadcast	return TK_BROADCAST;
-multicast	return TK_MULTICAST;
-
-and|"&&"	return AND;
-or|"||"		return OR;
-not		return '!';
-
-len|length	return LEN;
-inbound		return INBOUND;
-outbound	return OUTBOUND;
-
-[ \n\t]			;
-[+\-*/:\[\]!<>()&|=]	return yytext[0];
-">="			return GEQ;
-"<="			return LEQ;
-"!="			return NEQ;
-"=="			return '=';
-"<<"			return LSH;
-">>"			return RSH;
-{N}			{ yylval.i = stoi((char *)yytext); return NUM; }
-({N}\.{N})|({N}\.{N}\.{N})|({N}\.{N}\.{N}\.{N})	{
-			yylval.s = sdup((char *)yytext); return HID;
-}
-{B}:{B}:{B}:{B}:{B}:{B} { yylval.e = pcap_ether_aton((char *)yytext);
-			  return EID; }
-{B}:+({B}:+)+		{ bpf_error("bogus ethernet address %s", yytext); }
-[A-Za-z][-_.A-Za-z0-9]*	{ yylval.s = sdup((char *)yytext); return ID; }
-"\\"[^ !()\n\t]+	{ yylval.s = sdup((char *)yytext + 1); return ID; }
-[^ \[\]\t\n\-_.A-Za-z0-9!<>()&|=]+    { bpf_error("illegal token: %s\n", yytext); }
-.			{ bpf_error("illegal char '%c'", *yytext); }
-%%
-void
-lex_init(buf)
-	char *buf;
-{
-	in_buffer = buf;
-}
-
-/*
- * Also define a yywrap.  Note that if we're using flex, it will
- * define a macro to map this identifier to pcap_wrap.
- */
-int
-yywrap()
-{
-	return 1;
-}
-
-/* Hex digit to integer. */
-static inline int
-xdtoi(c)
-	register int c;
-{
-	if (isdigit(c))
-		return c - '0';
-	else if (islower(c))
-		return c - 'a' + 10;
-	else
-		return c - 'A' + 10;
-}
-
-/*
- * Convert string to integer.  Just like atoi(), but checks for
- * preceding 0x or 0 and uses hex or octal instead of decimal.
- */
-static int
-stoi(s)
-	char *s;
-{
-	int base = 10;
-	int n = 0;
-
-	if (*s == '0') {
-		if (s[1] == 'x' || s[1] == 'X') {
-			s += 2;
-			base = 16;
-		}
-		else {
-			base = 8;
-			s += 1;
-		}
-	}
-	while (*s)
-		n = n * base + xdtoi(*s++);
-
-	return n;
-}
-