The Tcpdump Group git mirrors - tcpdump/blobdiff

* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

*/

* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

*/

-#ifndef lint

-static const char rcsid[] _U_ =

- "@(#) $Header: /tcpdump/master/tcpdump/print-domain.c,v 1.92 2006-04-07 08:58:29 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 "interface.h"

+#include "netdissect.h"

#include "addrtoname.h"

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

+#include "addrtostr.h"

+#include "extract.h"

static const char *ns_ops[] = {

"", " inv_q", " stat", " op3", " notify", " update", " op6", " op7",

static const char *ns_ops[] = {

"", " inv_q", " stat", " op3", " notify", " update", " op6", " op7",

- " op8", " updataA", " updateD", " updateDA",

+ " op8", " updateA", " updateD", " updateDA",

" updateM", " updateMA", " zoneInit", " zoneRef",

};

" updateM", " updateMA", " zoneInit", " zoneRef",

};

/* skip over a domain name */

static const u_char *

/* skip over a domain name */

static const u_char *

-ns_nskip(register const u_char *cp)

+ns_nskip(netdissect_options *ndo,

+ register const u_char *cp)

{

register u_char i;

{

register u_char i;

- if (!TTEST2(*cp, 1))

+ if (!ND_TTEST2(*cp, 1))

return (NULL);

i = *cp++;

while (i) {

return (NULL);

i = *cp++;

while (i) {

if ((i & ~INDIR_MASK) != EDNS0_ELT_BITLABEL)

return(NULL); /* unknown ELT */

if ((i & ~INDIR_MASK) != EDNS0_ELT_BITLABEL)

return(NULL); /* unknown ELT */

- if (!TTEST2(*cp, 1))

+ if (!ND_TTEST2(*cp, 1))

return (NULL);

if ((bitlen = *cp++) == 0)

bitlen = 256;

return (NULL);

if ((bitlen = *cp++) == 0)

bitlen = 256;

cp += bytelen;

} else

cp += i;

cp += bytelen;

} else

cp += i;

- if (!TTEST2(*cp, 1))

+ if (!ND_TTEST2(*cp, 1))

return (NULL);

i = *cp++;

}

return (NULL);

i = *cp++;

}

/* print a <domain-name> */

static const u_char *

/* print a <domain-name> */

static const u_char *

-blabel_print(const u_char *cp)

+blabel_print(netdissect_options *ndo,

+ const u_char *cp)

{

int bitlen, slen, b;

const u_char *bitp, *lim;

char tc;

{

int bitlen, slen, b;

const u_char *bitp, *lim;

char tc;

- if (!TTEST2(*cp, 1))

+ if (!ND_TTEST2(*cp, 1))

return(NULL);

if ((bitlen = *cp) == 0)

bitlen = 256;

return(NULL);

if ((bitlen = *cp) == 0)

bitlen = 256;

lim = cp + 1 + slen;

/* print the bit string as a hex string */

lim = cp + 1 + slen;

/* print the bit string as a hex string */

- printf("\\[x");

+ ND_PRINT((ndo, "\\[x"));

for (bitp = cp + 1, b = bitlen; bitp < lim && b > 7; b -= 8, bitp++) {

- TCHECK(*bitp);

- printf("%02x", *bitp);

+ ND_TCHECK(*bitp);

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

}

if (b > 4) {

}

if (b > 4) {

- TCHECK(*bitp);

+ ND_TCHECK(*bitp);

tc = *bitp++;

- printf("%02x", tc & (0xff << (8 - b)));

+ ND_PRINT((ndo, "%02x", tc & (0xff << (8 - b))));

} else if (b > 0) {

- TCHECK(*bitp);

+ ND_TCHECK(*bitp);

tc = *bitp++;

- printf("%1x", ((tc >> 4) & 0x0f) & (0x0f << (4 - b)));

+ ND_PRINT((ndo, "%1x", ((tc >> 4) & 0x0f) & (0x0f << (4 - b))));

}

- printf("/%d]", bitlen);

+ ND_PRINT((ndo, "/%d]", bitlen));

return lim;

trunc:

return lim;

trunc:

- printf(".../%d]", bitlen);

+ ND_PRINT((ndo, ".../%d]", bitlen));

return NULL;

}

static int

return NULL;

}

static int

-labellen(const u_char *cp)

+labellen(netdissect_options *ndo,

+ const u_char *cp)

{

register u_int i;

{

register u_int i;

- if (!TTEST2(*cp, 1))

+ if (!ND_TTEST2(*cp, 1))

return(-1);

i = *cp;

if ((i & INDIR_MASK) == EDNS0_MASK) {

int bitlen, elt;

if ((elt = (i & ~INDIR_MASK)) != EDNS0_ELT_BITLABEL) {

return(-1);

i = *cp;

if ((i & INDIR_MASK) == EDNS0_MASK) {

int bitlen, elt;

if ((elt = (i & ~INDIR_MASK)) != EDNS0_ELT_BITLABEL) {

- printf("<ELT %d>", elt);

+ ND_PRINT((ndo, "<ELT %d>", elt));

return(-1);

}

return(-1);

}

- if (!TTEST2(*(cp + 1), 1))

+ if (!ND_TTEST2(*(cp + 1), 1))

return(-1);

if ((bitlen = *(cp + 1)) == 0)

bitlen = 256;

return(-1);

if ((bitlen = *(cp + 1)) == 0)

bitlen = 256;

return(i);

}

return(i);

}

-static const u_char *

-ns_nprint(register const u_char *cp, register const u_char *bp)

+const u_char *

+ns_nprint(netdissect_options *ndo,

+ register const u_char *cp, register const u_char *bp)

{

register u_int i, l;

register const u_char *rp = NULL;

register int compress = 0;

int chars_processed;

int elt;

{

register u_int i, l;

register const u_char *rp = NULL;

register int compress = 0;

int chars_processed;

int elt;

- int data_size = snapend - bp;

+ int data_size = ndo->ndo_snapend - bp;

- if ((l = labellen(cp)) == (u_int)-1)

+ if ((l = labellen(ndo, cp)) == (u_int)-1)

return(NULL);

- if (!TTEST2(*cp, 1))

+ if (!ND_TTEST2(*cp, 1))

return(NULL);

chars_processed = 1;

if (((i = *cp++) & INDIR_MASK) != INDIR_MASK) {

return(NULL);

chars_processed = 1;

if (((i = *cp++) & INDIR_MASK) != INDIR_MASK) {

}

if (i != 0)

}

if (i != 0)

- while (i && cp < snapend) {

+ while (i && cp < ndo->ndo_snapend) {

if ((i & INDIR_MASK) == INDIR_MASK) {

if (!compress) {

rp = cp + 1;

compress = 1;

}

if ((i & INDIR_MASK) == INDIR_MASK) {

if (!compress) {

rp = cp + 1;

compress = 1;

}

- if (!TTEST2(*cp, 1))

+ if (!ND_TTEST2(*cp, 1))

return(NULL);

cp = bp + (((i << 8) | *cp) & 0x3fff);

return(NULL);

cp = bp + (((i << 8) | *cp) & 0x3fff);

- if ((l = labellen(cp)) == (u_int)-1)

+ if ((l = labellen(ndo, cp)) == (u_int)-1)

return(NULL);

- if (!TTEST2(*cp, 1))

+ if (!ND_TTEST2(*cp, 1))

return(NULL);

i = *cp++;

chars_processed++;

return(NULL);

i = *cp++;

chars_processed++;

* which means we're looping.

*/

if (chars_processed >= data_size) {

* which means we're looping.

*/

if (chars_processed >= data_size) {

- printf("<LOOP>");

+ ND_PRINT((ndo, "<LOOP>"));

return (NULL);

}

continue;

return (NULL);

}

continue;

elt = (i & ~INDIR_MASK);

switch(elt) {

case EDNS0_ELT_BITLABEL:

elt = (i & ~INDIR_MASK);

switch(elt) {

case EDNS0_ELT_BITLABEL:

- if (blabel_print(cp) == NULL)

+ if (blabel_print(ndo, cp) == NULL)

return (NULL);

break;

default:

/* unknown ELT */

return (NULL);

break;

default:

/* unknown ELT */

- printf("<ELT %d>", elt);

+ ND_PRINT((ndo, "<ELT %d>", elt));

return(NULL);

}

} else {

return(NULL);

}

} else {

- if (fn_printn(cp, l, snapend))

+ if (fn_printn(ndo, cp, l, ndo->ndo_snapend))

return(NULL);

}

cp += l;

chars_processed += l;

return(NULL);

}

cp += l;

chars_processed += l;

- putchar('.');

- if ((l = labellen(cp)) == (u_int)-1)

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

+ if ((l = labellen(ndo, cp)) == (u_int)-1)

return(NULL);

- if (!TTEST2(*cp, 1))

+ if (!ND_TTEST2(*cp, 1))

return(NULL);

i = *cp++;

chars_processed++;

return(NULL);

i = *cp++;

chars_processed++;

rp += l + 1;

}

else

rp += l + 1;

}

else

- putchar('.');

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

return (rp);

}

/* print a <character-string> */

static const u_char *

return (rp);

}

/* print a <character-string> */

static const u_char *

-ns_cprint(register const u_char *cp)

+ns_cprint(netdissect_options *ndo,

+ register const u_char *cp)

{

register u_int i;

{

register u_int i;

- if (!TTEST2(*cp, 1))

+ if (!ND_TTEST2(*cp, 1))

return (NULL);

i = *cp++;

return (NULL);

i = *cp++;

- if (fn_printn(cp, i, snapend))

+ if (fn_printn(ndo, cp, i, ndo->ndo_snapend))

return (NULL);

return (cp + i);

}

/* http://www.iana.org/assignments/dns-parameters */

return (NULL);

return (cp + i);

}

/* http://www.iana.org/assignments/dns-parameters */

-struct tok ns_type2str[] = {

+const struct tok ns_type2str[] = {

{ T_A, "A" }, /* RFC 1035 */

{ T_NS, "NS" }, /* RFC 1035 */

{ T_MD, "MD" }, /* RFC 1035 */

{ T_A, "A" }, /* RFC 1035 */

{ T_NS, "NS" }, /* RFC 1035 */

{ T_MD, "MD" }, /* RFC 1035 */

{ 0, NULL }

};

{ 0, NULL }

};

-struct tok ns_class2str[] = {

+const struct tok ns_class2str[] = {

{ C_IN, "IN" }, /* Not used */

{ C_CHAOS, "CHAOS" },

{ C_HS, "HS" },

{ C_IN, "IN" }, /* Not used */

{ C_CHAOS, "CHAOS" },

{ C_HS, "HS" },

/* print a query */

static const u_char *

/* print a query */

static const u_char *

-ns_qprint(register const u_char *cp, register const u_char *bp, int is_mdns)

+ns_qprint(netdissect_options *ndo,

+ register const u_char *cp, register const u_char *bp, int is_mdns)

{

register const u_char *np = cp;

{

register const u_char *np = cp;

- register u_int i;

+ register u_int i, class;

- cp = ns_nskip(cp);

+ cp = ns_nskip(ndo, cp);

- if (cp == NULL || !TTEST2(*cp, 4))

+ if (cp == NULL || !ND_TTEST2(*cp, 4))

return(NULL);

- /* print the qtype and qclass (if it's not IN) */

+ /* print the qtype */

i = EXTRACT_16BITS(cp);

cp += 2;

i = EXTRACT_16BITS(cp);

cp += 2;

- printf(" %s", tok2str(ns_type2str, "Type%d", i));

+ ND_PRINT((ndo, " %s", tok2str(ns_type2str, "Type%d", i)));

+ /* print the qclass (if it's not IN) */

i = EXTRACT_16BITS(cp);

cp += 2;

i = EXTRACT_16BITS(cp);

cp += 2;

- if (is_mdns && i == (C_IN|C_CACHE_FLUSH))

- printf(" (Cache flush)");

- else if (i != C_IN)

- printf(" %s", tok2str(ns_class2str, "(Class %d)", i));

+ if (is_mdns)

+ class = (i & ~C_QU);

+ else

+ class = i;

+ if (class != C_IN)

+ ND_PRINT((ndo, " %s", tok2str(ns_class2str, "(Class %d)", class)));

+ if (is_mdns) {

+ ND_PRINT((ndo, i & C_QU ? " (QU)" : " (QM)"));

+ }

- fputs("? ", stdout);

- cp = ns_nprint(np, bp);

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

+ cp = ns_nprint(ndo, np, bp);

return(cp ? cp + 4 : NULL);

}

/* print a reply */

static const u_char *

return(cp ? cp + 4 : NULL);

}

/* print a reply */

static const u_char *

-ns_rprint(register const u_char *cp, register const u_char *bp, int is_mdns)

+ns_rprint(netdissect_options *ndo,

+ register const u_char *cp, register const u_char *bp, int is_mdns)

{

- register u_int class, opt_flags = 0;

+ register u_int i, class, opt_flags = 0;

register u_short typ, len;

register const u_char *rp;

register u_short typ, len;

register const u_char *rp;

- if (vflag) {

- putchar(' ');

- if ((cp = ns_nprint(cp, bp)) == NULL)

+ if (ndo->ndo_vflag) {

+ ND_PRINT((ndo, " "));

+ if ((cp = ns_nprint(ndo, cp, bp)) == NULL)

return NULL;

} else

return NULL;

} else

- cp = ns_nskip(cp);

+ cp = ns_nskip(ndo, cp);

- if (cp == NULL || !TTEST2(*cp, 10))

- return (snapend);

+ if (cp == NULL || !ND_TTEST2(*cp, 10))

+ return (ndo->ndo_snapend);

- /* print the type/qtype and class (if it's not IN) */

+ /* print the type/qtype */

typ = EXTRACT_16BITS(cp);

cp += 2;

typ = EXTRACT_16BITS(cp);

cp += 2;

- class = EXTRACT_16BITS(cp);

+ /* print the class (if it's not IN and the type isn't OPT) */

+ i = EXTRACT_16BITS(cp);

cp += 2;

- if (is_mdns && class == (C_IN|C_CACHE_FLUSH))

- printf(" (Cache flush)");

- else if (class != C_IN && typ != T_OPT)

- printf(" %s", tok2str(ns_class2str, "(Class %d)", class));

+ if (is_mdns)

+ class = (i & ~C_CACHE_FLUSH);

+ else

+ class = i;

+ if (class != C_IN && typ != T_OPT)

+ ND_PRINT((ndo, " %s", tok2str(ns_class2str, "(Class %d)", class)));

+ if (is_mdns) {

+ if (i & C_CACHE_FLUSH)

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

+ }

- /* ignore ttl */

- cp += 2;

- /* if T_OPT, save opt_flags */

- if (typ == T_OPT)

+ if (typ == T_OPT) {

+ /* get opt flags */

+ cp += 2;

opt_flags = EXTRACT_16BITS(cp);

- /* ignore rest of ttl */

- cp += 2;

+ /* ignore rest of ttl field */

+ cp += 2;

+ } else if (ndo->ndo_vflag > 2) {

+ /* print ttl */

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

+ relts_print(ndo, EXTRACT_32BITS(cp));

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

+ cp += 4;

+ } else {

+ /* ignore ttl */

+ cp += 4;

+ }

len = EXTRACT_16BITS(cp);

cp += 2;

rp = cp + len;

len = EXTRACT_16BITS(cp);

cp += 2;

rp = cp + len;

- printf(" %s", tok2str(ns_type2str, "Type%d", typ));

- if (rp > snapend)

+ ND_PRINT((ndo, " %s", tok2str(ns_type2str, "Type%d", typ)));

+ if (rp > ndo->ndo_snapend)

return(NULL);

switch (typ) {

case T_A:

return(NULL);

switch (typ) {

case T_A:

- if (!TTEST2(*cp, sizeof(struct in_addr)))

+ if (!ND_TTEST2(*cp, sizeof(struct in_addr)))

return(NULL);

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

+ ND_PRINT((ndo, " %s", intoa(htonl(EXTRACT_32BITS(cp)))));

break;

case T_NS:

break;

case T_NS:

#ifdef T_DNAME

case T_DNAME:

#endif

#ifdef T_DNAME

case T_DNAME:

#endif

- putchar(' ');

- if (ns_nprint(cp, bp) == NULL)

+ ND_PRINT((ndo, " "));

+ if (ns_nprint(ndo, cp, bp) == NULL)

return(NULL);

break;

case T_SOA:

return(NULL);

break;

case T_SOA:

- if (!vflag)

+ if (!ndo->ndo_vflag)

break;

- putchar(' ');

- if ((cp = ns_nprint(cp, bp)) == NULL)

+ ND_PRINT((ndo, " "));

+ if ((cp = ns_nprint(ndo, cp, bp)) == NULL)

return(NULL);

- putchar(' ');

- if ((cp = ns_nprint(cp, bp)) == NULL)

+ ND_PRINT((ndo, " "));

+ if ((cp = ns_nprint(ndo, cp, bp)) == NULL)

return(NULL);

- if (!TTEST2(*cp, 5 * 4))

+ if (!ND_TTEST2(*cp, 5 * 4))

return(NULL);

- printf(" %u", EXTRACT_32BITS(cp));

+ ND_PRINT((ndo, " %u", EXTRACT_32BITS(cp)));

cp += 4;

- printf(" %u", EXTRACT_32BITS(cp));

+ ND_PRINT((ndo, " %u", EXTRACT_32BITS(cp)));

cp += 4;

- printf(" %u", EXTRACT_32BITS(cp));

+ ND_PRINT((ndo, " %u", EXTRACT_32BITS(cp)));

cp += 4;

- printf(" %u", EXTRACT_32BITS(cp));

+ ND_PRINT((ndo, " %u", EXTRACT_32BITS(cp)));

cp += 4;

- printf(" %u", EXTRACT_32BITS(cp));

+ ND_PRINT((ndo, " %u", EXTRACT_32BITS(cp)));

cp += 4;

break;

case T_MX:

cp += 4;

break;

case T_MX:

- putchar(' ');

- if (!TTEST2(*cp, 2))

+ ND_PRINT((ndo, " "));

+ if (!ND_TTEST2(*cp, 2))

return(NULL);

- if (ns_nprint(cp + 2, bp) == NULL)

+ if (ns_nprint(ndo, cp + 2, bp) == NULL)

return(NULL);

- printf(" %d", EXTRACT_16BITS(cp));

+ ND_PRINT((ndo, " %d", EXTRACT_16BITS(cp)));

break;

case T_TXT:

while (cp < rp) {

break;

case T_TXT:

while (cp < rp) {

- printf(" \"");

- cp = ns_cprint(cp);

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

+ cp = ns_cprint(ndo, cp);

if (cp == NULL)

return(NULL);

if (cp == NULL)

return(NULL);

- putchar('"');

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

}

break;

case T_SRV:

}

break;

case T_SRV:

- putchar(' ');

- if (!TTEST2(*cp, 6))

+ ND_PRINT((ndo, " "));

+ if (!ND_TTEST2(*cp, 6))

return(NULL);

- if (ns_nprint(cp + 6, bp) == NULL)

+ if (ns_nprint(ndo, cp + 6, bp) == NULL)

return(NULL);

- printf(":%d %d %d", EXTRACT_16BITS(cp + 4),

- EXTRACT_16BITS(cp), EXTRACT_16BITS(cp + 2));

+ ND_PRINT((ndo, ":%d %d %d", EXTRACT_16BITS(cp + 4),

+ EXTRACT_16BITS(cp), EXTRACT_16BITS(cp + 2)));

break;

-#ifdef INET6

case T_AAAA:

- if (!TTEST2(*cp, sizeof(struct in6_addr)))

+ {

+ char ntop_buf[INET6_ADDRSTRLEN];

+

+ if (!ND_TTEST2(*cp, sizeof(struct in6_addr)))

return(NULL);

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

+ ND_PRINT((ndo, " %s",

+ addrtostr6(cp, ntop_buf, sizeof(ntop_buf))));

+

break;

+ }

case T_A6:

{

struct in6_addr a;

int pbit, pbyte;

case T_A6:

{

struct in6_addr a;

int pbit, pbyte;

+ char ntop_buf[INET6_ADDRSTRLEN];

- if (!TTEST2(*cp, 1))

+ if (!ND_TTEST2(*cp, 1))

return(NULL);

pbit = *cp;

pbyte = (pbit & ~7) / 8;

if (pbit > 128) {

return(NULL);

pbit = *cp;

pbyte = (pbit & ~7) / 8;

if (pbit > 128) {

- printf(" %u(bad plen)", pbit);

+ ND_PRINT((ndo, " %u(bad plen)", pbit));

break;

} else if (pbit < 128) {

break;

} else if (pbit < 128) {

- if (!TTEST2(*(cp + 1), sizeof(a) - pbyte))

+ if (!ND_TTEST2(*(cp + 1), sizeof(a) - pbyte))

return(NULL);

memset(&a, 0, sizeof(a));

memcpy(&a.s6_addr[pbyte], cp + 1, sizeof(a) - pbyte);

return(NULL);

memset(&a, 0, sizeof(a));

memcpy(&a.s6_addr[pbyte], cp + 1, sizeof(a) - pbyte);

- printf(" %u %s", pbit, ip6addr_string(&a));

+ ND_PRINT((ndo, " %u %s", pbit,

+ addrtostr6(&a, ntop_buf, sizeof(ntop_buf))));

}

if (pbit > 0) {

}

if (pbit > 0) {

- putchar(' ');

- if (ns_nprint(cp + 1 + sizeof(a) - pbyte, bp) == NULL)

+ ND_PRINT((ndo, " "));

+ if (ns_nprint(ndo, cp + 1 + sizeof(a) - pbyte, bp) == NULL)

return(NULL);

}

break;

}

return(NULL);

}

break;

}

-#endif /*INET6*/

case T_OPT:

- printf(" UDPsize=%u", class);

+ ND_PRINT((ndo, " UDPsize=%u", class));

if (opt_flags & 0x8000)

- printf(" OK");

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

break;

case T_UNSPECA: /* One long string */

break;

case T_UNSPECA: /* One long string */

- if (!TTEST2(*cp, len))

+ if (!ND_TTEST2(*cp, len))

return(NULL);

- if (fn_printn(cp, len, snapend))

+ if (fn_printn(ndo, cp, len, ndo->ndo_snapend))

return(NULL);

break;

case T_TSIG:

{

return(NULL);

break;

case T_TSIG:

{

- if (cp + len > snapend)

+ if (cp + len > ndo->ndo_snapend)

return(NULL);

- if (!vflag)

+ if (!ndo->ndo_vflag)

break;

- putchar(' ');

- if ((cp = ns_nprint(cp, bp)) == NULL)

+ ND_PRINT((ndo, " "));

+ if ((cp = ns_nprint(ndo, cp, bp)) == NULL)

return(NULL);

cp += 6;

return(NULL);

cp += 6;

- if (!TTEST2(*cp, 2))

+ if (!ND_TTEST2(*cp, 2))

return(NULL);

- printf(" fudge=%u", EXTRACT_16BITS(cp));

+ ND_PRINT((ndo, " fudge=%u", EXTRACT_16BITS(cp)));

cp += 2;

- if (!TTEST2(*cp, 2))

+ if (!ND_TTEST2(*cp, 2))

return(NULL);

- printf(" maclen=%u", EXTRACT_16BITS(cp));

+ ND_PRINT((ndo, " maclen=%u", EXTRACT_16BITS(cp)));

cp += 2 + EXTRACT_16BITS(cp);

- if (!TTEST2(*cp, 2))

+ if (!ND_TTEST2(*cp, 2))

return(NULL);

- printf(" origid=%u", EXTRACT_16BITS(cp));

+ ND_PRINT((ndo, " origid=%u", EXTRACT_16BITS(cp)));

cp += 2;

- if (!TTEST2(*cp, 2))

+ if (!ND_TTEST2(*cp, 2))

return(NULL);

- printf(" error=%u", EXTRACT_16BITS(cp));

+ ND_PRINT((ndo, " error=%u", EXTRACT_16BITS(cp)));

cp += 2;

- if (!TTEST2(*cp, 2))

+ if (!ND_TTEST2(*cp, 2))

return(NULL);

- printf(" otherlen=%u", EXTRACT_16BITS(cp));

+ ND_PRINT((ndo, " otherlen=%u", EXTRACT_16BITS(cp)));

cp += 2;

}

cp += 2;

}

void

}

void

-ns_print(register const u_char *bp, u_int length, int is_mdns)

+ns_print(netdissect_options *ndo,

+ register const u_char *bp, u_int length, int is_mdns)

{

register const HEADER *np;

register int qdcount, ancount, nscount, arcount;

register const u_char *cp;

{

register const HEADER *np;

register int qdcount, ancount, nscount, arcount;

register const u_char *cp;

- u_int16_t b2;

+ uint16_t b2;

np = (const HEADER *)bp;

- TCHECK(*np);

+ ND_TCHECK(*np);

/* get the byte-order right */

qdcount = EXTRACT_16BITS(&np->qdcount);

ancount = EXTRACT_16BITS(&np->ancount);

/* get the byte-order right */

qdcount = EXTRACT_16BITS(&np->qdcount);

ancount = EXTRACT_16BITS(&np->ancount);

if (DNS_QR(np)) {

/* this is a response */

if (DNS_QR(np)) {

/* this is a response */

- printf(" %d%s%s%s%s%s%s",

+ ND_PRINT((ndo, "%d%s%s%s%s%s%s",

EXTRACT_16BITS(&np->id),

ns_ops[DNS_OPCODE(np)],

ns_resp[DNS_RCODE(np)],

DNS_AA(np)? "*" : "",

DNS_RA(np)? "" : "-",

DNS_TC(np)? "|" : "",

EXTRACT_16BITS(&np->id),

ns_ops[DNS_OPCODE(np)],

ns_resp[DNS_RCODE(np)],

DNS_AA(np)? "*" : "",

DNS_RA(np)? "" : "-",

DNS_TC(np)? "|" : "",

- DNS_AD(np)? "$" : "");

+ DNS_AD(np)? "$" : ""));

if (qdcount != 1)

- printf(" [%dq]", qdcount);

+ ND_PRINT((ndo, " [%dq]", qdcount));

/* Print QUESTION section on -vv */

cp = (const u_char *)(np + 1);

while (qdcount--) {

if (qdcount < EXTRACT_16BITS(&np->qdcount) - 1)

/* Print QUESTION section on -vv */

cp = (const u_char *)(np + 1);

while (qdcount--) {

if (qdcount < EXTRACT_16BITS(&np->qdcount) - 1)

- putchar(',');

- if (vflag > 1) {

- fputs(" q:", stdout);

- if ((cp = ns_qprint(cp, bp, is_mdns)) == NULL)

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

+ if (ndo->ndo_vflag > 1) {

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

+ if ((cp = ns_qprint(ndo, cp, bp, is_mdns)) == NULL)

goto trunc;

} else {

goto trunc;

} else {

- if ((cp = ns_nskip(cp)) == NULL)

+ if ((cp = ns_nskip(ndo, cp)) == NULL)

goto trunc;

cp += 4; /* skip QTYPE and QCLASS */

}

goto trunc;

cp += 4; /* skip QTYPE and QCLASS */

}

- printf(" %d/%d/%d", ancount, nscount, arcount);

+ ND_PRINT((ndo, " %d/%d/%d", ancount, nscount, arcount));

if (ancount--) {

- if ((cp = ns_rprint(cp, bp, is_mdns)) == NULL)

+ if ((cp = ns_rprint(ndo, cp, bp, is_mdns)) == NULL)

goto trunc;

- while (cp < snapend && ancount--) {

- putchar(',');

- if ((cp = ns_rprint(cp, bp, is_mdns)) == NULL)

+ while (cp < ndo->ndo_snapend && ancount--) {

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

+ if ((cp = ns_rprint(ndo, cp, bp, is_mdns)) == NULL)

goto trunc;

}

if (ancount > 0)

goto trunc;

/* Print NS and AR sections on -vv */

goto trunc;

}

if (ancount > 0)

goto trunc;

/* Print NS and AR sections on -vv */

- if (vflag > 1) {

- if (cp < snapend && nscount--) {

- fputs(" ns:", stdout);

- if ((cp = ns_rprint(cp, bp, is_mdns)) == NULL)

+ if (ndo->ndo_vflag > 1) {

+ if (cp < ndo->ndo_snapend && nscount--) {

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

+ if ((cp = ns_rprint(ndo, cp, bp, is_mdns)) == NULL)

goto trunc;

- while (cp < snapend && nscount--) {

- putchar(',');

- if ((cp = ns_rprint(cp, bp, is_mdns)) == NULL)

+ while (cp < ndo->ndo_snapend && nscount--) {

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

+ if ((cp = ns_rprint(ndo, cp, bp, is_mdns)) == NULL)

goto trunc;

}

if (nscount > 0)

goto trunc;

}

if (nscount > 0)

goto trunc;

- if (cp < snapend && arcount--) {

- fputs(" ar:", stdout);

- if ((cp = ns_rprint(cp, bp, is_mdns)) == NULL)

+ if (cp < ndo->ndo_snapend && arcount--) {

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

+ if ((cp = ns_rprint(ndo, cp, bp, is_mdns)) == NULL)

goto trunc;

- while (cp < snapend && arcount--) {

- putchar(',');

- if ((cp = ns_rprint(cp, bp, is_mdns)) == NULL)

+ while (cp < ndo->ndo_snapend && arcount--) {

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

+ if ((cp = ns_rprint(ndo, cp, bp, is_mdns)) == NULL)

goto trunc;

}

goto trunc;

}

else {

/* this is a request */

}

else {

/* this is a request */

- printf(" %d%s%s%s", EXTRACT_16BITS(&np->id), ns_ops[DNS_OPCODE(np)],

+ ND_PRINT((ndo, "%d%s%s%s", EXTRACT_16BITS(&np->id), ns_ops[DNS_OPCODE(np)],

DNS_RD(np) ? "+" : "",

- DNS_CD(np) ? "%" : "");

+ DNS_CD(np) ? "%" : ""));

/* any weirdness? */

- b2 = EXTRACT_16BITS(((u_short *)np)+1);

+ b2 = EXTRACT_16BITS(((const u_short *)np)+1);

if (b2 & 0x6cf)

- printf(" [b2&3=0x%x]", b2);

+ ND_PRINT((ndo, " [b2&3=0x%x]", b2));

if (DNS_OPCODE(np) == IQUERY) {

if (qdcount)

if (DNS_OPCODE(np) == IQUERY) {

if (qdcount)

- printf(" [%dq]", qdcount);

+ ND_PRINT((ndo, " [%dq]", qdcount));

if (ancount != 1)

- printf(" [%da]", ancount);

+ ND_PRINT((ndo, " [%da]", ancount));

}

else {

if (ancount)

}

else {

if (ancount)

- printf(" [%da]", ancount);

+ ND_PRINT((ndo, " [%da]", ancount));

if (qdcount != 1)

- printf(" [%dq]", qdcount);

+ ND_PRINT((ndo, " [%dq]", qdcount));

}

if (nscount)

}

if (nscount)

- printf(" [%dn]", nscount);

+ ND_PRINT((ndo, " [%dn]", nscount));

if (arcount)

- printf(" [%dau]", arcount);

+ ND_PRINT((ndo, " [%dau]", arcount));

cp = (const u_char *)(np + 1);

if (qdcount--) {

cp = (const u_char *)(np + 1);

if (qdcount--) {

- cp = ns_qprint(cp, (const u_char *)np, is_mdns);

+ cp = ns_qprint(ndo, cp, (const u_char *)np, is_mdns);

if (!cp)

goto trunc;

if (!cp)

goto trunc;

- while (cp < snapend && qdcount--) {

- cp = ns_qprint((const u_char *)cp,

+ while (cp < ndo->ndo_snapend && qdcount--) {

+ cp = ns_qprint(ndo, (const u_char *)cp,

(const u_char *)np,

is_mdns);

if (!cp)

(const u_char *)np,

is_mdns);

if (!cp)

goto trunc;

/* Print remaining sections on -vv */

goto trunc;

/* Print remaining sections on -vv */

- if (vflag > 1) {

+ if (ndo->ndo_vflag > 1) {

if (ancount--) {

- if ((cp = ns_rprint(cp, bp, is_mdns)) == NULL)

+ if ((cp = ns_rprint(ndo, cp, bp, is_mdns)) == NULL)

goto trunc;

- while (cp < snapend && ancount--) {

- putchar(',');

- if ((cp = ns_rprint(cp, bp, is_mdns)) == NULL)

+ while (cp < ndo->ndo_snapend && ancount--) {

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

+ if ((cp = ns_rprint(ndo, cp, bp, is_mdns)) == NULL)

goto trunc;

}

if (ancount > 0)

goto trunc;

}

if (ancount > 0)

goto trunc;

- if (cp < snapend && nscount--) {

- fputs(" ns:", stdout);

- if ((cp = ns_rprint(cp, bp, is_mdns)) == NULL)

+ if (cp < ndo->ndo_snapend && nscount--) {

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

+ if ((cp = ns_rprint(ndo, cp, bp, is_mdns)) == NULL)

goto trunc;

- while (nscount-- && cp < snapend) {

- putchar(',');

- if ((cp = ns_rprint(cp, bp, is_mdns)) == NULL)

+ while (nscount-- && cp < ndo->ndo_snapend) {

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

+ if ((cp = ns_rprint(ndo, cp, bp, is_mdns)) == NULL)

goto trunc;

}

if (nscount > 0)

goto trunc;

}

if (nscount > 0)

goto trunc;

- if (cp < snapend && arcount--) {

- fputs(" ar:", stdout);

- if ((cp = ns_rprint(cp, bp, is_mdns)) == NULL)

+ if (cp < ndo->ndo_snapend && arcount--) {

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

+ if ((cp = ns_rprint(ndo, cp, bp, is_mdns)) == NULL)

goto trunc;

- while (cp < snapend && arcount--) {

- putchar(',');

- if ((cp = ns_rprint(cp, bp, is_mdns)) == NULL)

+ while (cp < ndo->ndo_snapend && arcount--) {

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

+ if ((cp = ns_rprint(ndo, cp, bp, is_mdns)) == NULL)

goto trunc;

}

goto trunc;

}

goto trunc;

}

goto trunc;

}

- printf(" (%d)", length);

+ ND_PRINT((ndo, " (%d)", length));

return;

trunc:

return;

trunc:

- printf("[|domain]");

- return;

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

}