The Tcpdump Group git mirrors - tcpdump/blobdiff

* SUCH DAMAGE.

*/

* SUCH DAMAGE.

*/

-#ifndef lint

-static const char rcsid[] =

- "@(#) $Header: /tcpdump/master/tcpdump/print-lwres.c,v 1.7 2002-09-05 00:00:15 guy Exp $ (LBL)";

-#endif

-

#ifdef HAVE_CONFIG_H

#include "config.h"

#endif

#ifdef HAVE_CONFIG_H

#include "config.h"

#endif

-#include <tcpdump-stdinc.h>

+#include <netdissect-stdinc.h>

#include "nameser.h"

#include <stdio.h>

#include <string.h>

#include "nameser.h"

#include <stdio.h>

#include <string.h>

-#include "interface.h"

+#include "netdissect.h"

#include "addrtoname.h"

-#include "extract.h" /* must come after interface.h */

+#include "extract.h"

/* BIND9 lib/lwres/include/lwres */

-typedef u_int32_t lwres_uint32_t;

-typedef u_int16_t lwres_uint16_t;

-typedef u_int8_t lwres_uint8_t;

+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;

struct lwres_lwpacket {

lwres_uint32_t length;

#define LWRES_MAX_ALIASES 16 /* max # of aliases */

#define LWRES_MAX_ADDRS 64 /* max # of addrs */

#define LWRES_MAX_ALIASES 16 /* max # of aliases */

#define LWRES_MAX_ADDRS 64 /* max # of addrs */

-struct tok opcode[] = {

+static const struct tok opcode[] = {

{ LWRES_OPCODE_NOOP, "noop", },

{ LWRES_OPCODE_GETADDRSBYNAME, "getaddrsbyname", },

{ LWRES_OPCODE_GETNAMEBYADDR, "getnamebyaddr", },

{ LWRES_OPCODE_NOOP, "noop", },

{ LWRES_OPCODE_GETADDRSBYNAME, "getaddrsbyname", },

{ LWRES_OPCODE_GETNAMEBYADDR, "getnamebyaddr", },

};

/* print-domain.c */

};

/* print-domain.c */

-extern struct tok ns_type2str[];

-extern struct tok ns_class2str[];

-

-static int lwres_printname(size_t, const char *);

-static int lwres_printnamelen(const char *);

-static int lwres_printbinlen(const char *);

-static int lwres_printaddr(lwres_addr_t *);

+extern const struct tok ns_type2str[];

+extern const struct tok ns_class2str[];

static int

-lwres_printname(size_t l, const char *p0)

+lwres_printname(netdissect_options *ndo,

+ size_t l, const char *p0)

{

const char *p;

size_t i;

p = p0;

/* + 1 for terminating \0 */

{

const char *p;

size_t i;

p = p0;

/* + 1 for terminating \0 */

- if (p + l + 1 > (const char *)snapend)

+ if (p + l + 1 > (const char *)ndo->ndo_snapend)

goto trunc;

- printf(" ");

+ ND_PRINT((ndo, " "));

for (i = 0; i < l; i++)

- safeputchar(*p++);

+ safeputchar(ndo, *p++);

p++; /* skip terminating \0 */

return p - p0;

p++; /* skip terminating \0 */

return p - p0;

}

static int

}

static int

-lwres_printnamelen(const char *p)

+lwres_printnamelen(netdissect_options *ndo,

+ const char *p)

{

- u_int16_t l;

+ uint16_t l;

int advance;

- if (p + 2 > (const char *)snapend)

+ if (p + 2 > (const char *)ndo->ndo_snapend)

goto trunc;

l = EXTRACT_16BITS(p);

goto trunc;

l = EXTRACT_16BITS(p);

- advance = lwres_printname(l, p + 2);

+ advance = lwres_printname(ndo, l, p + 2);

if (advance < 0)

goto trunc;

return 2 + advance;

if (advance < 0)

goto trunc;

return 2 + advance;

}

static int

}

static int

-lwres_printbinlen(const char *p0)

+lwres_printbinlen(netdissect_options *ndo,

+ const char *p0)

{

const char *p;

{

const char *p;

- u_int16_t l;

+ uint16_t l;

int i;

p = p0;

int i;

p = p0;

- if (p + 2 > (const char *)snapend)

+ if (p + 2 > (const char *)ndo->ndo_snapend)

goto trunc;

l = EXTRACT_16BITS(p);

goto trunc;

l = EXTRACT_16BITS(p);

- if (p + 2 + l > (const char *)snapend)

+ if (p + 2 + l > (const char *)ndo->ndo_snapend)

goto trunc;

p += 2;

for (i = 0; i < l; i++)

goto trunc;

p += 2;

for (i = 0; i < l; i++)

- printf("%02x", *p++);

+ ND_PRINT((ndo, "%02x", *p++));

return p - p0;

trunc:

return p - p0;

trunc:

}

static int

}

static int

-lwres_printaddr(lwres_addr_t *ap)

+lwres_printaddr(netdissect_options *ndo,

+ const lwres_addr_t *ap)

{

- u_int16_t l;

+ uint16_t l;

const char *p;

int i;

const char *p;

int i;

- TCHECK(ap->length);

- l = ntohs(ap->length);

+ ND_TCHECK(ap->length);

+ l = EXTRACT_16BITS(&ap->length);

/* XXX ap points to packed struct */

p = (const char *)&ap->length + sizeof(ap->length);

/* XXX ap points to packed struct */

p = (const char *)&ap->length + sizeof(ap->length);

- if (p + l > (const char *)snapend)

- goto trunc;

+ ND_TCHECK2(*p, l);

- switch (ntohl(ap->family)) {

+ switch (EXTRACT_32BITS(&ap->family)) {

case 1: /* IPv4 */

- printf(" %s", ipaddr_string(p));

+ if (l < 4)

+ return -1;

+ ND_PRINT((ndo, " %s", ipaddr_string(ndo, p)));

p += sizeof(struct in_addr);

break;

p += sizeof(struct in_addr);

break;

-#ifdef INET6

case 2: /* IPv6 */

- printf(" %s", ip6addr_string(p));

+ if (l < 16)

+ return -1;

+ ND_PRINT((ndo, " %s", ip6addr_string(ndo, p)));

p += sizeof(struct in6_addr);

break;

p += sizeof(struct in6_addr);

break;

-#endif

default:

- printf(" %lu/", (unsigned long)ntohl(ap->family));

+ ND_PRINT((ndo, " %u/", EXTRACT_32BITS(&ap->family)));

for (i = 0; i < l; i++)

- printf("%02x", *p++);

+ ND_PRINT((ndo, "%02x", *p++));

}

return p - (const char *)ap;

}

return p - (const char *)ap;

}

void

}

void

-lwres_print(register const u_char *bp, u_int length)

+lwres_print(netdissect_options *ndo,

+ register const u_char *bp, u_int length)

{

const struct lwres_lwpacket *np;

{

const struct lwres_lwpacket *np;

- u_int32_t v;

+ uint32_t v;

const char *s;

int response;

int advance;

int unsupported = 0;

np = (const struct lwres_lwpacket *)bp;

const char *s;

int response;

int advance;

int unsupported = 0;

np = (const struct lwres_lwpacket *)bp;

- TCHECK(np->authlength);

+ ND_TCHECK(np->authlength);

- printf(" lwres");

- v = ntohs(np->version);

- if (vflag || v != LWRES_LWPACKETVERSION_0)

- printf(" v%u", v);

+ 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 + ntohl(np->length);

+ s = (const char *)np + EXTRACT_32BITS(&np->length);

goto tail;

}

goto tail;

}

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

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

/* opcode and pktflags */

- v = (u_int32_t)ntohl(np->opcode);

+ v = EXTRACT_32BITS(&np->opcode);

s = tok2str(opcode, "#0x%x", v);

- printf(" %s%s", s, response ? "" : "?");

+ ND_PRINT((ndo, " %s%s", s, response ? "" : "?"));

/* pktflags */

- v = ntohs(np->pktflags);

+ v = EXTRACT_16BITS(&np->pktflags);

if (v & ~LWRES_LWPACKETFLAG_RESPONSE)

- printf("[0x%x]", v);

+ ND_PRINT((ndo, "[0x%x]", v));

- if (vflag > 1) {

- printf(" ("); /*)*/

- printf("serial:0x%lx", (unsigned long)ntohl(np->serial));

- printf(" result:0x%lx", (unsigned long)ntohl(np->result));

- printf(" recvlen:%lu", (unsigned long)ntohl(np->recvlength));

+ 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 (vflag > 2) {

- printf(" authtype:0x%x", ntohs(np->authtype));

- printf(" authlen:%u", ntohs(np->authlength));

+ if (ndo->ndo_vflag > 2) {

+ ND_PRINT((ndo, " authtype:0x%x", EXTRACT_16BITS(&np->authtype)));

+ ND_PRINT((ndo, " authlen:%u", EXTRACT_16BITS(&np->authlength)));

}

/*(*/

}

/*(*/

- printf(")");

+ ND_PRINT((ndo, ")"));

}

/* per-opcode content */

}

/* per-opcode content */

/*

* queries

*/

/*

* queries

*/

- lwres_gabnrequest_t *gabn;

- lwres_gnbarequest_t *gnba;

- lwres_grbnrequest_t *grbn;

- u_int32_t l;

+ const lwres_gabnrequest_t *gabn;

+ const lwres_gnbarequest_t *gnba;

+ const lwres_grbnrequest_t *grbn;

+ uint32_t l;

gabn = NULL;

gnba = NULL;

grbn = NULL;

gabn = NULL;

gnba = NULL;

grbn = NULL;

- switch (ntohl(np->opcode)) {

+ switch (EXTRACT_32BITS(&np->opcode)) {

case LWRES_OPCODE_NOOP:

break;

case LWRES_OPCODE_GETADDRSBYNAME:

case LWRES_OPCODE_NOOP:

break;

case LWRES_OPCODE_GETADDRSBYNAME:

- gabn = (lwres_gabnrequest_t *)(np + 1);

- TCHECK(gabn->namelen);

+ 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);

/* XXX gabn points to packed struct */

s = (const char *)&gabn->namelen +

sizeof(gabn->namelen);

- l = ntohs(gabn->namelen);

+ l = EXTRACT_16BITS(&gabn->namelen);

/* BIND910: not used */

- if (vflag > 2) {

- printf(" flags:0x%lx",

- (unsigned long)ntohl(gabn->flags));

+ if (ndo->ndo_vflag > 2) {

+ ND_PRINT((ndo, " flags:0x%x",

+ EXTRACT_32BITS(&gabn->flags)));

}

- v = (u_int32_t)ntohl(gabn->addrtypes);

+ v = EXTRACT_32BITS(&gabn->addrtypes);

switch (v & (LWRES_ADDRTYPE_V4 | LWRES_ADDRTYPE_V6)) {

case LWRES_ADDRTYPE_V4:

switch (v & (LWRES_ADDRTYPE_V4 | LWRES_ADDRTYPE_V6)) {

case LWRES_ADDRTYPE_V4:

- printf(" IPv4");

+ ND_PRINT((ndo, " IPv4"));

break;

case LWRES_ADDRTYPE_V6:

break;

case LWRES_ADDRTYPE_V6:

- printf(" IPv6");

+ ND_PRINT((ndo, " IPv6"));

break;

case LWRES_ADDRTYPE_V4 | LWRES_ADDRTYPE_V6:

break;

case LWRES_ADDRTYPE_V4 | LWRES_ADDRTYPE_V6:

- printf(" IPv4/6");

+ ND_PRINT((ndo, " IPv4/6"));

break;

}

if (v & ~(LWRES_ADDRTYPE_V4 | LWRES_ADDRTYPE_V6))

break;

}

if (v & ~(LWRES_ADDRTYPE_V4 | LWRES_ADDRTYPE_V6))

- printf("[0x%x]", v);

+ ND_PRINT((ndo, "[0x%x]", v));

- advance = lwres_printname(l, s);

+ advance = lwres_printname(ndo, l, s);

if (advance < 0)

goto trunc;

s += advance;

break;

case LWRES_OPCODE_GETNAMEBYADDR:

if (advance < 0)

goto trunc;

s += advance;

break;

case LWRES_OPCODE_GETNAMEBYADDR:

- gnba = (lwres_gnbarequest_t *)(np + 1);

- TCHECK(gnba->addr);

+ gnba = (const lwres_gnbarequest_t *)(np + 1);

+ ND_TCHECK(gnba->addr);

/* BIND910: not used */

- if (vflag > 2) {

- printf(" flags:0x%lx",

- (unsigned long)ntohl(gnba->flags));

+ if (ndo->ndo_vflag > 2) {

+ ND_PRINT((ndo, " flags:0x%x",

+ EXTRACT_32BITS(&gnba->flags)));

}

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

}

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

- advance = lwres_printaddr(&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 */

if (advance < 0)

goto trunc;

s += advance;

break;

case LWRES_OPCODE_GETRDATABYNAME:

/* XXX no trace, not tested */

- grbn = (lwres_grbnrequest_t *)(np + 1);

- TCHECK(grbn->namelen);

+ grbn = (const lwres_grbnrequest_t *)(np + 1);

+ ND_TCHECK(grbn->namelen);

/* BIND910: not used */

- if (vflag > 2) {

- printf(" flags:0x%lx",

- (unsigned long)ntohl(grbn->flags));

+ if (ndo->ndo_vflag > 2) {

+ ND_PRINT((ndo, " flags:0x%x",

+ EXTRACT_32BITS(&grbn->flags)));

}

- printf(" %s", tok2str(ns_type2str, "Type%d",

- ntohs(grbn->rdtype)));

- if (ntohs(grbn->rdclass) != C_IN) {

- printf(" %s", tok2str(ns_class2str, "Class%d",

- ntohs(grbn->rdclass)));

+ 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))));

}

/* XXX grbn points to packed struct */

s = (const char *)&grbn->namelen +

sizeof(grbn->namelen);

}

/* XXX grbn points to packed struct */

s = (const char *)&grbn->namelen +

sizeof(grbn->namelen);

- l = ntohs(gabn->namelen);

+ l = EXTRACT_16BITS(&grbn->namelen);

- advance = lwres_printname(l, s);

+ advance = lwres_printname(ndo, l, s);

if (advance < 0)

goto trunc;

s += advance;

if (advance < 0)

goto trunc;

s += advance;

/*

* responses

*/

/*

* responses

*/

- lwres_gabnresponse_t *gabn;

- lwres_gnbaresponse_t *gnba;

- lwres_grbnresponse_t *grbn;

- u_int32_t l, na;

- u_int32_t i;

+ 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;

gabn = NULL;

gnba = NULL;

grbn = NULL;

- switch (ntohl(np->opcode)) {

+ switch (EXTRACT_32BITS(&np->opcode)) {

case LWRES_OPCODE_NOOP:

break;

case LWRES_OPCODE_GETADDRSBYNAME:

case LWRES_OPCODE_NOOP:

break;

case LWRES_OPCODE_GETADDRSBYNAME:

- gabn = (lwres_gabnresponse_t *)(np + 1);

- TCHECK(gabn->realnamelen);

+ 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);

/* XXX gabn points to packed struct */

s = (const char *)&gabn->realnamelen +

sizeof(gabn->realnamelen);

- l = ntohs(gabn->realnamelen);

+ l = EXTRACT_16BITS(&gabn->realnamelen);

/* BIND910: not used */

- if (vflag > 2) {

- printf(" flags:0x%lx",

- (unsigned long)ntohl(gabn->flags));

+ if (ndo->ndo_vflag > 2) {

+ ND_PRINT((ndo, " flags:0x%x",

+ EXTRACT_32BITS(&gabn->flags)));

}

- printf(" %u/%u", ntohs(gabn->naliases),

- ntohs(gabn->naddrs));

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

+ EXTRACT_16BITS(&gabn->naddrs)));

- advance = lwres_printname(l, s);

+ advance = lwres_printname(ndo, l, s);

if (advance < 0)

goto trunc;

s += advance;

/* aliases */

if (advance < 0)

goto trunc;

s += advance;

/* aliases */

- na = ntohs(gabn->naliases);

+ na = EXTRACT_16BITS(&gabn->naliases);

for (i = 0; i < na; i++) {

- advance = lwres_printnamelen(s);

+ advance = lwres_printnamelen(ndo, s);

if (advance < 0)

goto trunc;

s += advance;

}

/* addrs */

if (advance < 0)

goto trunc;

s += advance;

}

/* addrs */

- na = ntohs(gabn->naddrs);

+ na = EXTRACT_16BITS(&gabn->naddrs);

for (i = 0; i < na; i++) {

- advance = lwres_printaddr((lwres_addr_t *)s);

+ advance = lwres_printaddr(ndo, (const lwres_addr_t *)s);

if (advance < 0)

goto trunc;

s += advance;

}

break;

case LWRES_OPCODE_GETNAMEBYADDR:

if (advance < 0)

goto trunc;

s += advance;

}

break;

case LWRES_OPCODE_GETNAMEBYADDR:

- gnba = (lwres_gnbaresponse_t *)(np + 1);

- TCHECK(gnba->realnamelen);

+ 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);

/* XXX gnba points to packed struct */

s = (const char *)&gnba->realnamelen +

sizeof(gnba->realnamelen);

- l = ntohs(gnba->realnamelen);

+ l = EXTRACT_16BITS(&gnba->realnamelen);

/* BIND910: not used */

- if (vflag > 2) {

- printf(" flags:0x%lx",

- (unsigned long)ntohl(gnba->flags));

+ if (ndo->ndo_vflag > 2) {

+ ND_PRINT((ndo, " flags:0x%x",

+ EXTRACT_32BITS(&gnba->flags)));

}

- printf(" %u", ntohs(gnba->naliases));

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

- advance = lwres_printname(l, s);

+ advance = lwres_printname(ndo, l, s);

if (advance < 0)

goto trunc;

s += advance;

/* aliases */

if (advance < 0)

goto trunc;

s += advance;

/* aliases */

- na = ntohs(gnba->naliases);

+ na = EXTRACT_16BITS(&gnba->naliases);

for (i = 0; i < na; i++) {

- advance = lwres_printnamelen(s);

+ advance = lwres_printnamelen(ndo, s);

if (advance < 0)

goto trunc;

s += advance;

if (advance < 0)

goto trunc;

s += advance;

break;

case LWRES_OPCODE_GETRDATABYNAME:

/* XXX no trace, not tested */

break;

case LWRES_OPCODE_GETRDATABYNAME:

/* XXX no trace, not tested */

- grbn = (lwres_grbnresponse_t *)(np + 1);

- TCHECK(grbn->nsigs);

+ grbn = (const lwres_grbnresponse_t *)(np + 1);

+ ND_TCHECK(grbn->nsigs);

/* BIND910: not used */

- if (vflag > 2) {

- printf(" flags:0x%lx",

- (unsigned long)ntohl(grbn->flags));

+ if (ndo->ndo_vflag > 2) {

+ ND_PRINT((ndo, " flags:0x%x",

+ EXTRACT_32BITS(&grbn->flags)));

}

- printf(" %s", tok2str(ns_type2str, "Type%d",

- ntohs(grbn->rdtype)));

- if (ntohs(grbn->rdclass) != C_IN) {

- printf(" %s", tok2str(ns_class2str, "Class%d",

- ntohs(grbn->rdclass)));

+ 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))));

}

- printf(" TTL ");

- relts_print(ntohl(grbn->ttl));

- printf(" %u/%u", ntohs(grbn->nrdatas),

- ntohs(grbn->nsigs));

+ ND_PRINT((ndo, " TTL "));

+ 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);

/* XXX grbn points to packed struct */

s = (const char *)&grbn->nsigs+ sizeof(grbn->nsigs);

- advance = lwres_printnamelen(s);

+ advance = lwres_printnamelen(ndo, s);

if (advance < 0)

goto trunc;

s += advance;

/* rdatas */

if (advance < 0)

goto trunc;

s += advance;

/* rdatas */

- na = ntohs(grbn->nrdatas);

+ na = EXTRACT_16BITS(&grbn->nrdatas);

for (i = 0; i < na; i++) {

/* XXX should decode resource data */

for (i = 0; i < na; i++) {

/* XXX should decode resource data */

- advance = lwres_printbinlen(s);

+ advance = lwres_printbinlen(ndo, s);

if (advance < 0)

goto trunc;

s += advance;

}

/* sigs */

if (advance < 0)

goto trunc;

s += advance;

}

/* sigs */

- na = ntohs(grbn->nsigs);

+ na = EXTRACT_16BITS(&grbn->nsigs);

for (i = 0; i < na; i++) {

/* XXX how should we print it? */

for (i = 0; i < na; i++) {

/* XXX how should we print it? */

- advance = lwres_printbinlen(s);

+ advance = lwres_printbinlen(ndo, s);

if (advance < 0)

goto trunc;

s += advance;

if (advance < 0)

goto trunc;

s += advance;

tail:

/* length mismatch */

tail:

/* length mismatch */

- if (ntohl(np->length) != length) {

- printf(" [len: %lu != %u]", (unsigned long)ntohl(np->length),

- length);

+ if (EXTRACT_32BITS(&np->length) != length) {

+ ND_PRINT((ndo, " [len: %u != %u]", EXTRACT_32BITS(&np->length),

+ length));

}

- if (!unsupported && s < (const char *)np + ntohl(np->length))

- printf("[extra]");

+ if (!unsupported && s < (const char *)np + EXTRACT_32BITS(&np->length))

+ ND_PRINT((ndo, "[extra]"));

return;

trunc:

return;

trunc:

- printf("[|lwres]");

- return;

+ ND_PRINT((ndo, "[|lwres]"));

}