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Current Path: /usr/src/contrib/tcpdump

📁 ..
📄 CHANGES(57.87 KB)
📄 CONTRIBUTING(5.93 KB)
📄 CREDITS(14.57 KB)
📄 INSTALL.txt(5.25 KB)
📄 LICENSE(873 B)
📄 Makefile-devel-adds(614 B)
📄 Makefile.in(9.96 KB)
📄 PLATFORMS(567 B)
📄 README(9.04 KB)
📄 README.md(9.04 KB)
📄 VERSION(6 B)
📄 addrtoname.c(33.19 KB)
📄 addrtoname.h(2.78 KB)
📄 addrtostr.c(5.64 KB)
📄 addrtostr.h(2.03 KB)
📄 af.c(1.96 KB)
📄 af.h(1.81 KB)
📄 ah.h(2.34 KB)
📄 appletalk.h(4.06 KB)
📄 ascii_strcasecmp.c(3.5 KB)
📄 ascii_strcasecmp.h(1.49 KB)
📄 atime.awk(529 B)
📄 atm.h(1.14 KB)
📄 bpf_dump.c(1.9 KB)
📄 chdlc.h(1.31 KB)
📄 checksum.c(5.25 KB)
📄 config.guess(43.17 KB)
📄 config.h.in(11.19 KB)
📄 config.sub(34.93 KB)
📄 configure(255.88 KB)
📄 configure.ac(25.05 KB)
📄 configure.in(25.66 KB)
📄 cpack.c(3.92 KB)
📄 cpack.h(2.37 KB)
📄 ether.h(2.34 KB)
📄 ethertype.h(5.58 KB)
📄 extract.h(11.48 KB)
📄 funcattrs.h(4.42 KB)
📄 getopt_long.h(2.52 KB)
📄 gmpls.c(5.82 KB)
📄 gmpls.h(1.38 KB)
📄 gmt2local.c(2.01 KB)
📄 gmt2local.h(1.21 KB)
📄 in_cksum.c(6.44 KB)
📄 install-sh(5.45 KB)
📄 interface.h(2.29 KB)
📄 ip.h(5.75 KB)
📄 ip6.h(7.6 KB)
📄 ipproto.c(16.49 KB)
📄 ipproto.h(4.72 KB)
📄 l2vpn.c(3.36 KB)
📄 l2vpn.h(781 B)
📁 lbl
📄 llc.h(3.72 KB)
📄 machdep.c(2.58 KB)
📄 machdep.h(1.24 KB)
📄 makemib(6.41 KB)
📄 mib.h(26.33 KB)
📁 missing
📄 mkdep(2.43 KB)
📄 mpls.h(1.93 KB)
📄 nameser.h(10.8 KB)
📄 netdissect-stdinc.h(9.93 KB)
📄 netdissect.c(3.38 KB)
📄 netdissect.h(30.13 KB)
📄 nfs.h(13.37 KB)
📄 nfsfh.h(2.57 KB)
📄 nlpid.c(1.27 KB)
📄 nlpid.h(1.3 KB)
📄 openflow.h(2.14 KB)
📄 ospf.h(10.21 KB)
📄 oui.c(3.83 KB)
📄 oui.h(4.06 KB)
📄 packetdat.awk(1.39 KB)
📄 parsenfsfh.c(12.87 KB)
📄 pcap-missing.h(1.8 KB)
📄 pcap_dump_ftell.c(1.29 KB)
📄 ppp.h(3.07 KB)
📄 print-802_11.c(91.47 KB)
📄 print-802_15_4.c(5.5 KB)
📄 print-ah.c(2.02 KB)
📄 print-ahcp.c(10.73 KB)
📄 print-aodv.c(15.98 KB)
📄 print-aoe.c(11.13 KB)
📄 print-ap1394.c(4 KB)
📄 print-arcnet.c(8.83 KB)
📄 print-arp.c(14.57 KB)
📄 print-ascii.c(6.23 KB)
📄 print-atalk.c(16.76 KB)
📄 print-atm.c(16.81 KB)
📄 print-babel.c(23.79 KB)
📄 print-beep.c(1.71 KB)
📄 print-bfd.c(16.5 KB)
📄 print-bgp.c(99.77 KB)
📄 print-bootp.c(30.07 KB)
📄 print-bt.c(2.21 KB)
📄 print-calm-fast.c(1.81 KB)
📄 print-carp.c(2.43 KB)
📄 print-cdp.c(11.16 KB)
📄 print-cfm.c(24.19 KB)
📄 print-chdlc.c(5.88 KB)
📄 print-cip.c(2.5 KB)
📄 print-cnfp.c(13.69 KB)
📄 print-dccp.c(17.75 KB)
📄 print-decnet.c(37.63 KB)
📄 print-dhcp6.c(23.22 KB)
📄 print-domain.c(18.44 KB)
📄 print-dtp.c(3.03 KB)
📄 print-dvmrp.c(8.98 KB)
📄 print-eap.c(9.26 KB)
📄 print-egp.c(8.69 KB)
📄 print-eigrp.c(19.49 KB)
📄 print-enc.c(4.2 KB)
📄 print-esp.c(21.46 KB)
📄 print-ether.c(12.91 KB)
📄 print-fddi.c(10.51 KB)
📄 print-forces.c(45.01 KB)
📄 print-fr.c(31.99 KB)
📄 print-frag6.c(2.36 KB)
📄 print-ftp.c(973 B)
📄 print-geneve.c(6.13 KB)
📄 print-geonet.c(6.72 KB)
📄 print-gre.c(9.72 KB)
📄 print-hncp.c(26.39 KB)
📄 print-hsrp.c(4.57 KB)
📄 print-http.c(1.51 KB)
📄 print-icmp.c(22.7 KB)
📄 print-icmp6.c(59.81 KB)
📄 print-igmp.c(10.05 KB)
📄 print-igrp.c(4.64 KB)
📄 print-ip.c(17.04 KB)
📄 print-ip6.c(10.57 KB)
📄 print-ip6opts.c(5.53 KB)
📄 print-ipcomp.c(2.32 KB)
📄 print-ipfc.c(4.41 KB)
📄 print-ipnet.c(2.78 KB)
📄 print-ipx.c(6.42 KB)
📄 print-isakmp.c(81.72 KB)
📄 print-isoclns.c(107.61 KB)
📄 print-juniper.c(48.42 KB)
📄 print-krb.c(6.26 KB)
📄 print-l2tp.c(23.94 KB)
📄 print-lane.c(3.04 KB)
📄 print-ldp.c(24.35 KB)
📄 print-lisp.c(15.23 KB)
📄 print-llc.c(16.68 KB)
📄 print-lldp.c(57.26 KB)
📄 print-lmp.c(38.11 KB)
📄 print-loopback.c(3.63 KB)
📄 print-lspping.c(51.64 KB)
📄 print-lwapp.c(13.01 KB)
📄 print-lwres.c(14.08 KB)
📄 print-m3ua.c(10.92 KB)
📄 print-medsa.c(5.57 KB)
📄 print-mobile.c(3.28 KB)
📄 print-mobility.c(9.74 KB)
📄 print-mpcp.c(7.87 KB)
📄 print-mpls.c(5.31 KB)
📄 print-mptcp.c(13.68 KB)
📄 print-msdp.c(2.69 KB)
📄 print-msnlb.c(2.39 KB)
📄 print-nflog.c(4.4 KB)
📄 print-nfs.c(42.84 KB)
📄 print-nsh.c(5.39 KB)
📄 print-ntp.c(13.34 KB)
📄 print-null.c(4.01 KB)
📄 print-olsr.c(23.42 KB)
📄 print-openflow-1.0.c(76.63 KB)
📄 print-openflow.c(4.77 KB)
📄 print-ospf.c(39.49 KB)
📄 print-ospf6.c(29.86 KB)
📄 print-otv.c(2.1 KB)
📄 print-pflog.c(4.86 KB)
📄 print-pfsync.c(12.53 KB)
📄 print-pgm.c(22.17 KB)
📄 print-pim.c(32.59 KB)
📄 print-pktap.c(5.18 KB)
📄 print-ppi.c(2.68 KB)
📄 print-ppp.c(46.16 KB)
📄 print-pppoe.c(5.65 KB)
📄 print-pptp.c(25.9 KB)
📄 print-radius.c(35.1 KB)
📄 print-raw.c(1.52 KB)
📄 print-resp.c(16.5 KB)
📄 print-rip.c(9.19 KB)
📄 print-ripng.c(6 KB)
📄 print-rpki-rtr.c(10.83 KB)
📄 print-rrcp.c(4.56 KB)
📄 print-rsvp.c(78.61 KB)
📄 print-rt6.c(2.66 KB)
📄 print-rtsp.c(1.16 KB)
📄 print-rx.c(66.92 KB)
📄 print-sctp.c(23.13 KB)
📄 print-sflow.c(31.91 KB)
📄 print-sip.c(1.29 KB)
📄 print-sl.c(6.95 KB)
📄 print-sll.c(9.2 KB)
📄 print-slow.c(25.17 KB)
📄 print-smb.c(43.19 KB)
📄 print-smtp.c(983 B)
📄 print-snmp.c(43.17 KB)
📄 print-stp.c(17.18 KB)
📄 print-sunatm.c(3.27 KB)
📄 print-sunrpc.c(7.85 KB)
📄 print-symantec.c(3.78 KB)
📄 print-syslog.c(3.96 KB)
📄 print-tcp.c(35.84 KB)
📄 print-telnet.c(15.02 KB)
📄 print-tftp.c(5.2 KB)
📄 print-timed.c(4.74 KB)
📄 print-tipc.c(11.53 KB)
📄 print-token.c(7.96 KB)
📄 print-udld.c(5.47 KB)
📄 print-udp.c(21.28 KB)
📄 print-usb.c(4.18 KB)
📄 print-vjc.c(4.45 KB)
📄 print-vqp.c(6.8 KB)
📄 print-vrrp.c(6.37 KB)
📄 print-vtp.c(13.56 KB)
📄 print-vxlan-gpe.c(3.46 KB)
📄 print-vxlan.c(2.21 KB)
📄 print-wb.c(10.93 KB)
📄 print-zephyr.c(8.03 KB)
📄 print-zeromq.c(7.5 KB)
📄 print.c(11.54 KB)
📄 print.h(1.78 KB)
📄 rpc_auth.h(2.77 KB)
📄 rpc_msg.h(3.19 KB)
📄 rpl.h(4.88 KB)
📄 send-ack.awk(1.56 KB)
📄 setsignal.c(3.27 KB)
📄 setsignal.h(1.24 KB)
📄 signature.c(5.58 KB)
📄 signature.h(1.12 KB)
📄 slcompress.h(3.55 KB)
📄 smb.h(5.38 KB)
📄 smbutil.c(63.88 KB)
📄 stime.awk(567 B)
📄 strtoaddr.c(5.34 KB)
📄 strtoaddr.h(992 B)
📄 tcp.h(5.02 KB)
📄 tcpdump.1.in(60.82 KB)
📄 tcpdump.c(69.76 KB)
📄 timeval-operations.h(3.19 KB)
📄 udp.h(8.25 KB)
📄 util-print.c(23.75 KB)
📄 vfprintf.c(1.62 KB)

Editing: print-lwres.c

/*
 * Copyright (C) 2001 WIDE Project.
 * 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. Neither the name of the project 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 PROJECT 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 PROJECT 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.
 */

/* \summary: BIND9 Lightweight Resolver protocol printer */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <netdissect-stdinc.h>

#include "nameser.h"

#include <stdio.h>
#include <string.h>

#include "netdissect.h"
#include "addrtoname.h"
#include "extract.h"

/* BIND9 lib/lwres/include/lwres */
typedef uint32_t lwres_uint32_t;
typedef uint16_t lwres_uint16_t;
typedef uint8_t lwres_uint8_t;

struct lwres_lwpacket {
	lwres_uint32_t		length;
	lwres_uint16_t		version;
	lwres_uint16_t		pktflags;
	lwres_uint32_t		serial;
	lwres_uint32_t		opcode;
	lwres_uint32_t		result;
	lwres_uint32_t		recvlength;
	lwres_uint16_t		authtype;
	lwres_uint16_t		authlength;
};

#define LWRES_LWPACKETFLAG_RESPONSE	0x0001U	/* if set, pkt is a response */

#define LWRES_LWPACKETVERSION_0		0

#define LWRES_FLAG_TRUSTNOTREQUIRED	0x00000001U
#define LWRES_FLAG_SECUREDATA		0x00000002U

/*
 * no-op
 */
#define LWRES_OPCODE_NOOP		0x00000000U

typedef struct {
	/* public */
	lwres_uint16_t			datalength;
	/* data follows */
} lwres_nooprequest_t;

typedef struct {
	/* public */
	lwres_uint16_t			datalength;
	/* data follows */
} lwres_noopresponse_t;

/*
 * get addresses by name
 */
#define LWRES_OPCODE_GETADDRSBYNAME	0x00010001U

typedef struct lwres_addr lwres_addr_t;

struct lwres_addr {
	lwres_uint32_t			family;
	lwres_uint16_t			length;
	/* address folows */
};

typedef struct {
	/* public */
	lwres_uint32_t			flags;
	lwres_uint32_t			addrtypes;
	lwres_uint16_t			namelen;
	/* name follows */
} lwres_gabnrequest_t;

typedef struct {
	/* public */
	lwres_uint32_t			flags;
	lwres_uint16_t			naliases;
	lwres_uint16_t			naddrs;
	lwres_uint16_t			realnamelen;
	/* aliases follows */
	/* addrs follows */
	/* realname follows */
} lwres_gabnresponse_t;

/*
 * get name by address
 */
#define LWRES_OPCODE_GETNAMEBYADDR	0x00010002U
typedef struct {
	/* public */
	lwres_uint32_t			flags;
	lwres_addr_t			addr;
	/* addr body follows */
} lwres_gnbarequest_t;

typedef struct {
	/* public */
	lwres_uint32_t			flags;
	lwres_uint16_t			naliases;
	lwres_uint16_t			realnamelen;
	/* aliases follows */
	/* realname follows */
} lwres_gnbaresponse_t;

/*
 * get rdata by name
 */
#define LWRES_OPCODE_GETRDATABYNAME	0x00010003U

typedef struct {
	/* public */
	lwres_uint32_t			flags;
	lwres_uint16_t			rdclass;
	lwres_uint16_t			rdtype;
	lwres_uint16_t			namelen;
	/* name follows */
} lwres_grbnrequest_t;

typedef struct {
	/* public */
	lwres_uint32_t			flags;
	lwres_uint16_t			rdclass;
	lwres_uint16_t			rdtype;
	lwres_uint32_t			ttl;
	lwres_uint16_t			nrdatas;
	lwres_uint16_t			nsigs;
	/* realname here (len + name) */
	/* rdata here (len + name) */
	/* signatures here (len + name) */
} lwres_grbnresponse_t;

#define LWRDATA_VALIDATED	0x00000001

#define LWRES_ADDRTYPE_V4		0x00000001U	/* ipv4 */
#define LWRES_ADDRTYPE_V6		0x00000002U	/* ipv6 */

#define LWRES_MAX_ALIASES		16		/* max # of aliases */
#define LWRES_MAX_ADDRS			64		/* max # of addrs */

static const struct tok opcode[] = {
	{ LWRES_OPCODE_NOOP,		"noop", },
	{ LWRES_OPCODE_GETADDRSBYNAME,	"getaddrsbyname", },
	{ LWRES_OPCODE_GETNAMEBYADDR,	"getnamebyaddr", },
	{ LWRES_OPCODE_GETRDATABYNAME,	"getrdatabyname", },
	{ 0, 				NULL, },
};

/* print-domain.c */
extern const struct tok ns_type2str[];
extern const struct tok ns_class2str[];

static int
lwres_printname(netdissect_options *ndo,
                size_t l, const char *p0)
{
	const char *p;
	size_t i;

p = p0;
	/* + 1 for terminating \0 */
	if (p + l + 1 > (const char *)ndo->ndo_snapend)
		goto trunc;

ND_PRINT((ndo, " "));
	for (i = 0; i < l; i++)
		safeputchar(ndo, *p++);
	p++;	/* skip terminating \0 */

return p - p0;

trunc:
	return -1;
}

static int
lwres_printnamelen(netdissect_options *ndo,
                   const char *p)
{
	uint16_t l;
	int advance;

if (p + 2 > (const char *)ndo->ndo_snapend)
		goto trunc;
	l = EXTRACT_16BITS(p);
	advance = lwres_printname(ndo, l, p + 2);
	if (advance < 0)
		goto trunc;
	return 2 + advance;

trunc:
	return -1;
}

static int
lwres_printbinlen(netdissect_options *ndo,
                  const char *p0)
{
	const char *p;
	uint16_t l;
	int i;

p = p0;
	if (p + 2 > (const char *)ndo->ndo_snapend)
		goto trunc;
	l = EXTRACT_16BITS(p);
	if (p + 2 + l > (const char *)ndo->ndo_snapend)
		goto trunc;
	p += 2;
	for (i = 0; i < l; i++)
		ND_PRINT((ndo, "%02x", *p++));
	return p - p0;

trunc:
	return -1;
}

static int
lwres_printaddr(netdissect_options *ndo,
                const lwres_addr_t *ap)
{
	uint16_t l;
	const char *p;
	int i;

ND_TCHECK(ap->length);
	l = EXTRACT_16BITS(&ap->length);
	/* XXX ap points to packed struct */
	p = (const char *)&ap->length + sizeof(ap->length);
	ND_TCHECK2(*p, l);

switch (EXTRACT_32BITS(&ap->family)) {
	case 1:	/* IPv4 */
		if (l < 4)
			return -1;
		ND_PRINT((ndo, " %s", ipaddr_string(ndo, p)));
		p += sizeof(struct in_addr);
		break;
	case 2:	/* IPv6 */
		if (l < 16)
			return -1;
		ND_PRINT((ndo, " %s", ip6addr_string(ndo, p)));
		p += sizeof(struct in6_addr);
		break;
	default:
		ND_PRINT((ndo, " %u/", EXTRACT_32BITS(&ap->family)));
		for (i = 0; i < l; i++)
			ND_PRINT((ndo, "%02x", *p++));
	}

return p - (const char *)ap;

trunc:
	return -1;
}

void
lwres_print(netdissect_options *ndo,
            register const u_char *bp, u_int length)
{
	const struct lwres_lwpacket *np;
	uint32_t v;
	const char *s;
	int response;
	int advance;
	int unsupported = 0;

np = (const struct lwres_lwpacket *)bp;
	ND_TCHECK(np->authlength);

ND_PRINT((ndo, " lwres"));
	v = EXTRACT_16BITS(&np->version);
	if (ndo->ndo_vflag || v != LWRES_LWPACKETVERSION_0)
		ND_PRINT((ndo, " v%u", v));
	if (v != LWRES_LWPACKETVERSION_0) {
		s = (const char *)np + EXTRACT_32BITS(&np->length);
		goto tail;
	}

response = EXTRACT_16BITS(&np->pktflags) & LWRES_LWPACKETFLAG_RESPONSE;

/* opcode and pktflags */
	v = EXTRACT_32BITS(&np->opcode);
	s = tok2str(opcode, "#0x%x", v);
	ND_PRINT((ndo, " %s%s", s, response ? "" : "?"));

/* pktflags */
	v = EXTRACT_16BITS(&np->pktflags);
	if (v & ~LWRES_LWPACKETFLAG_RESPONSE)
		ND_PRINT((ndo, "[0x%x]", v));

if (ndo->ndo_vflag > 1) {
		ND_PRINT((ndo, " ("));	/*)*/
		ND_PRINT((ndo, "serial:0x%x", EXTRACT_32BITS(&np->serial)));
		ND_PRINT((ndo, " result:0x%x", EXTRACT_32BITS(&np->result)));
		ND_PRINT((ndo, " recvlen:%u", EXTRACT_32BITS(&np->recvlength)));
		/* BIND910: not used */
		if (ndo->ndo_vflag > 2) {
			ND_PRINT((ndo, " authtype:0x%x", EXTRACT_16BITS(&np->authtype)));
			ND_PRINT((ndo, " authlen:%u", EXTRACT_16BITS(&np->authlength)));
		}
		/*(*/
		ND_PRINT((ndo, ")"));
	}

/* per-opcode content */
	if (!response) {
		/*
		 * queries
		 */
		const lwres_gabnrequest_t *gabn;
		const lwres_gnbarequest_t *gnba;
		const lwres_grbnrequest_t *grbn;
		uint32_t l;

gabn = NULL;
		gnba = NULL;
		grbn = NULL;

switch (EXTRACT_32BITS(&np->opcode)) {
		case LWRES_OPCODE_NOOP:
			break;
		case LWRES_OPCODE_GETADDRSBYNAME:
			gabn = (const lwres_gabnrequest_t *)(np + 1);
			ND_TCHECK(gabn->namelen);
			/* XXX gabn points to packed struct */
			s = (const char *)&gabn->namelen +
			    sizeof(gabn->namelen);
			l = EXTRACT_16BITS(&gabn->namelen);

/* BIND910: not used */
			if (ndo->ndo_vflag > 2) {
				ND_PRINT((ndo, " flags:0x%x",
				    EXTRACT_32BITS(&gabn->flags)));
			}

v = EXTRACT_32BITS(&gabn->addrtypes);
			switch (v & (LWRES_ADDRTYPE_V4 | LWRES_ADDRTYPE_V6)) {
			case LWRES_ADDRTYPE_V4:
				ND_PRINT((ndo, " IPv4"));
				break;
			case LWRES_ADDRTYPE_V6:
				ND_PRINT((ndo, " IPv6"));
				break;
			case LWRES_ADDRTYPE_V4 | LWRES_ADDRTYPE_V6:
				ND_PRINT((ndo, " IPv4/6"));
				break;
			}
			if (v & ~(LWRES_ADDRTYPE_V4 | LWRES_ADDRTYPE_V6))
				ND_PRINT((ndo, "[0x%x]", v));

advance = lwres_printname(ndo, l, s);
			if (advance < 0)
				goto trunc;
			s += advance;
			break;
		case LWRES_OPCODE_GETNAMEBYADDR:
			gnba = (const lwres_gnbarequest_t *)(np + 1);
			ND_TCHECK(gnba->addr);

/* BIND910: not used */
			if (ndo->ndo_vflag > 2) {
				ND_PRINT((ndo, " flags:0x%x",
				    EXTRACT_32BITS(&gnba->flags)));
			}

s = (const char *)&gnba->addr;

advance = lwres_printaddr(ndo, &gnba->addr);
			if (advance < 0)
				goto trunc;
			s += advance;
			break;
		case LWRES_OPCODE_GETRDATABYNAME:
			/* XXX no trace, not tested */
			grbn = (const lwres_grbnrequest_t *)(np + 1);
			ND_TCHECK(grbn->namelen);

/* BIND910: not used */
			if (ndo->ndo_vflag > 2) {
				ND_PRINT((ndo, " flags:0x%x",
				    EXTRACT_32BITS(&grbn->flags)));
			}

/* XXX grbn points to packed struct */
			s = (const char *)&grbn->namelen +
			    sizeof(grbn->namelen);
			l = EXTRACT_16BITS(&grbn->namelen);

advance = lwres_printname(ndo, l, s);
			if (advance < 0)
				goto trunc;
			s += advance;
			break;
		default:
			unsupported++;
			break;
		}
	} else {
		/*
		 * responses
		 */
		const lwres_gabnresponse_t *gabn;
		const lwres_gnbaresponse_t *gnba;
		const lwres_grbnresponse_t *grbn;
		uint32_t l, na;
		uint32_t i;

gabn = NULL;
		gnba = NULL;
		grbn = NULL;

switch (EXTRACT_32BITS(&np->opcode)) {
		case LWRES_OPCODE_NOOP:
			break;
		case LWRES_OPCODE_GETADDRSBYNAME:
			gabn = (const lwres_gabnresponse_t *)(np + 1);
			ND_TCHECK(gabn->realnamelen);
			/* XXX gabn points to packed struct */
			s = (const char *)&gabn->realnamelen +
			    sizeof(gabn->realnamelen);
			l = EXTRACT_16BITS(&gabn->realnamelen);

/* BIND910: not used */
			if (ndo->ndo_vflag > 2) {
				ND_PRINT((ndo, " flags:0x%x",
				    EXTRACT_32BITS(&gabn->flags)));
			}

ND_PRINT((ndo, " %u/%u", EXTRACT_16BITS(&gabn->naliases),
			    EXTRACT_16BITS(&gabn->naddrs)));

advance = lwres_printname(ndo, l, s);
			if (advance < 0)
				goto trunc;
			s += advance;

/* aliases */
			na = EXTRACT_16BITS(&gabn->naliases);
			for (i = 0; i < na; i++) {
				advance = lwres_printnamelen(ndo, s);
				if (advance < 0)
					goto trunc;
				s += advance;
			}

/* addrs */
			na = EXTRACT_16BITS(&gabn->naddrs);
			for (i = 0; i < na; i++) {
				advance = lwres_printaddr(ndo, (const lwres_addr_t *)s);
				if (advance < 0)
					goto trunc;
				s += advance;
			}
			break;
		case LWRES_OPCODE_GETNAMEBYADDR:
			gnba = (const lwres_gnbaresponse_t *)(np + 1);
			ND_TCHECK(gnba->realnamelen);
			/* XXX gnba points to packed struct */
			s = (const char *)&gnba->realnamelen +
			    sizeof(gnba->realnamelen);
			l = EXTRACT_16BITS(&gnba->realnamelen);

/* BIND910: not used */
			if (ndo->ndo_vflag > 2) {
				ND_PRINT((ndo, " flags:0x%x",
				    EXTRACT_32BITS(&gnba->flags)));
			}

ND_PRINT((ndo, " %u", EXTRACT_16BITS(&gnba->naliases)));

advance = lwres_printname(ndo, l, s);
			if (advance < 0)
				goto trunc;
			s += advance;

/* aliases */
			na = EXTRACT_16BITS(&gnba->naliases);
			for (i = 0; i < na; i++) {
				advance = lwres_printnamelen(ndo, s);
				if (advance < 0)
					goto trunc;
				s += advance;
			}
			break;
		case LWRES_OPCODE_GETRDATABYNAME:
			/* XXX no trace, not tested */
			grbn = (const lwres_grbnresponse_t *)(np + 1);
			ND_TCHECK(grbn->nsigs);

/* BIND910: not used */
			if (ndo->ndo_vflag > 2) {
				ND_PRINT((ndo, " flags:0x%x",
				    EXTRACT_32BITS(&grbn->flags)));
			}

ND_PRINT((ndo, " %s", tok2str(ns_type2str, "Type%d",
			    EXTRACT_16BITS(&grbn->rdtype))));
			if (EXTRACT_16BITS(&grbn->rdclass) != C_IN) {
				ND_PRINT((ndo, " %s", tok2str(ns_class2str, "Class%d",
				    EXTRACT_16BITS(&grbn->rdclass))));
			}
			ND_PRINT((ndo, " TTL "));
			unsigned_relts_print(ndo, EXTRACT_32BITS(&grbn->ttl));
			ND_PRINT((ndo, " %u/%u", EXTRACT_16BITS(&grbn->nrdatas),
			    EXTRACT_16BITS(&grbn->nsigs)));

/* XXX grbn points to packed struct */
			s = (const char *)&grbn->nsigs+ sizeof(grbn->nsigs);

advance = lwres_printnamelen(ndo, s);
			if (advance < 0)
				goto trunc;
			s += advance;

/* rdatas */
			na = EXTRACT_16BITS(&grbn->nrdatas);
			for (i = 0; i < na; i++) {
				/* XXX should decode resource data */
				advance = lwres_printbinlen(ndo, s);
				if (advance < 0)
					goto trunc;
				s += advance;
			}

/* sigs */
			na = EXTRACT_16BITS(&grbn->nsigs);
			for (i = 0; i < na; i++) {
				/* XXX how should we print it? */
				advance = lwres_printbinlen(ndo, s);
				if (advance < 0)
					goto trunc;
				s += advance;
			}
			break;
		default:
			unsupported++;
			break;
		}
	}

tail:
	/* length mismatch */
	if (EXTRACT_32BITS(&np->length) != length) {
		ND_PRINT((ndo, " [len: %u != %u]", EXTRACT_32BITS(&np->length),
		    length));
	}
	if (!unsupported && s < (const char *)np + EXTRACT_32BITS(&np->length))
		ND_PRINT((ndo, "[extra]"));
	return;

trunc:
	ND_PRINT((ndo, "[|lwres]"));
}

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