/* * Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997 *	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 lintstatic const char rcsid[] =    "@(#) $Header: print-domain.c,v 1.39 97/06/13 12:56:28 leres Exp $ (LBL)";#endif#ifndef WIN32
#include <sys/param.h>
#include <sys/time.h>
#include <sys/socket.h>
#else
#include <winsock.h>
#endif
#if __STDC__struct mbuf;struct rtentry;#endif#include <net/if.h>
#ifndef WIN32#include <netinet/in.h>
#else 
#include <winsock.h>
#endif
#include <netinet/if_ether.h>#include <netinet/in_systm.h>#include <netinet/ip.h>#include <netinet/ip_var.h>#include <netinet/udp.h>#include <netinet/udp_var.h>#include <netinet/tcp.h>#include <netinet/tcpip.h>#ifdef NOERROR#undef NOERROR					/* Solaris sucks */#endif#ifdef NOERROR#undef T_UNSPEC					/* SINIX does too */#endif
//#ifndef WIN32
#include <arpa/nameser.h>//#endif
#include <stdio.h>
#include "interface.h"#include "addrtoname.h"#include "extract.h"                    /* must come after interface.h *//* Compatibility */#ifndef T_TXT#define T_TXT		16		/* text strings */#endif#ifndef T_RP#define T_RP		17		/* responsible person */#endif#ifndef T_AFSDB#define T_AFSDB		18		/* AFS cell database */#endif#ifndef T_X25#define T_X25		19		/* X_25 calling address */#endif#ifndef T_ISDN#define T_ISDN		20		/* ISDN calling address */#endif#ifndef T_RT#define T_RT		21		/* router */#endif#ifndef T_NSAP#define T_NSAP		22		/* NSAP address */#endif#ifndef T_NSAP_PTR#define T_NSAP_PTR	23		/* reverse NSAP lookup (deprecated) */#endif#ifndef T_SIG#define T_SIG		24		/* security signature */#endif#ifndef T_KEY#define T_KEY		25		/* security key */#endif#ifndef T_PX#define T_PX		26		/* X.400 mail mapping */#endif#ifndef T_GPOS#define T_GPOS		27		/* geographical position (withdrawn) */#endif#ifndef T_AAAA#define T_AAAA		28		/* IP6 Address */#endif#ifndef T_LOC#define T_LOC		29		/* Location Information */#endif#ifndef T_UNSPEC#define T_UNSPEC	103		/* Unspecified format (binary data) */#endif#ifndef T_UNSPECA#define T_UNSPECA	104		/* "unspecified ascii". Ugly MIT hack */#endif#ifndef C_CHAOS#define C_CHAOS		3		/* for chaos net (MIT) */#endif#ifndef C_HS#define C_HS		4		/* for Hesiod name server (MIT) (XXX) */#endifstatic char *ns_ops[] = {	"", " inv_q", " stat", " op3", " notify", " op5", " op6", " op7",	" op8", " updataA", " updateD", " updateDA",	" updateM", " updateMA", " zoneInit", " zoneRef",};static char *ns_resp[] = {	"", " FormErr", " ServFail", " NXDomain",	" NotImp", " Refused", " Resp6", " Resp7",	" Resp8", " Resp9", " Resp10", " Resp11",	" Resp12", " Resp13", " Resp14", " NoChange",};/* skip over a domain name */static const u_char *ns_nskip(register const u_char *cp, register const u_char *bp){	register u_char i;	if (((i = *cp++) & INDIR_MASK) == INDIR_MASK)		return (cp + 1);	while (i && cp < snapend) {		cp += i;		i = *cp++;	}	return (cp);}/* print a <domain-name> */static const u_char *ns_nprint(register const u_char *cp, register const u_char *bp){	register u_int i;	register const u_char *rp;	register int compress;	i = *cp++;	rp = cp + i;	if ((i & INDIR_MASK) == INDIR_MASK) {		rp = cp + 1;		compress = 1;	} else		compress = 0;	if (i != 0)		while (i && cp < snapend) {			if ((i & INDIR_MASK) == INDIR_MASK) {				cp = bp + (((i << 8) | *cp) & 0x3fff);				i = *cp++;				continue;			}			if (fn_printn(cp, i, snapend))				break;			cp += i;			putchar('.');			i = *cp++;			if (!compress)				rp += i + 1;		}	else		putchar('.');	return (rp);}/* print a <character-string> */static const u_char *ns_cprint(register const u_char *cp, register const u_char *bp){	register u_int i;	i = *cp++;	(void)fn_printn(cp, i, snapend);	return (cp + i);}static struct tok type2str[] = {	{ T_A,		"A" },	{ T_NS,		"NS" },	{ T_MD,		"MD" },	{ T_MF,		"MF" },	{ T_CNAME,	"CNAME" },	{ T_SOA,	"SOA" },	{ T_MB,		"MB" },	{ T_MG,		"MG" },	{ T_MR,		"MR" },	{ T_NULL,	"NULL" },	{ T_WKS,	"WKS" },	{ T_PTR,	"PTR" },	{ T_HINFO,	"HINFO" },	{ T_MINFO,	"MINFO" },	{ T_MX,		"MX" },	{ T_TXT,	"TXT" },	{ T_RP,		"RP" },	{ T_AFSDB,	"AFSDB" },	{ T_X25,	"X25" },	{ T_ISDN,	"ISDN" },	{ T_RT,		"RT" },	{ T_NSAP,	"NSAP" },	{ T_NSAP_PTR,	"NSAP_PTR" },	{ T_SIG,	"SIG" },	{ T_KEY,	"KEY" },	{ T_PX,		"PX" },	{ T_GPOS,	"GPOS" },	{ T_AAAA,	"AAAA" },	{ T_LOC ,	"LOC " },#ifndef T_UINFO#define T_UINFO 100#endif	{ T_UINFO,	"UINFO" },#ifndef T_UID#define T_UID 101#endif	{ T_UID,	"UID" },#ifndef T_GID#define T_GID 102#endif	{ T_GID,	"GID" },	{ T_UNSPEC,	"UNSPEC" },	{ T_UNSPECA,	"UNSPECA" },	{ T_AXFR,	"AXFR" },	{ T_MAILB,	"MAILB" },	{ T_MAILA,	"MAILA" },	{ T_ANY,	"ANY" },	{ 0,		NULL }};static struct tok class2str[] = {	{ C_IN,		"IN" },		/* Not used */	{ C_CHAOS,	"CHAOS)" },	{ C_HS,		"HS" },	{ C_ANY,	"ANY" },	{ 0,		NULL }};/* print a query */static voidns_qprint(register const u_char *cp, register const u_char *bp){	register const u_char *np = cp;	register u_int i;	cp = ns_nskip(cp, bp);	if (cp + 4 > snapend)		return;	/* print the qtype and qclass (if it's not IN) */	i = *cp++ << 8;	i |= *cp++;	printf(" %s", tok2str(type2str, "Type%d", i));	i = *cp++ << 8;	i |= *cp++;	if (i != C_IN)		printf(" %s", tok2str(class2str, "(Class %d)", i));	fputs("? ", stdout);	ns_nprint(np, bp);}/* print a reply */static const u_char *ns_rprint(register const u_char *cp, register const u_char *bp){	register u_int i;	register u_short typ, len;	register const u_char *rp;	if (vflag) {		putchar(' ');		cp = ns_nprint(cp, bp);	} else		cp = ns_nskip(cp, bp);	if (cp + 10 > snapend)		return (snapend);	/* print the type/qtype and class (if it's not IN) */	typ = *cp++ << 8;	typ |= *cp++;	i = *cp++ << 8;	i |= *cp++;	if (i != C_IN)		printf(" %s", tok2str(class2str, "(Class %d)", i));	/* ignore ttl */	cp += 4;	len = *cp++ << 8;	len |= *cp++;	rp = cp + len;	printf(" %s", tok2str(type2str, "Type%d", typ));	switch (typ) {	case T_A:		printf(" %s", ipaddr_string(cp));		break;	case T_NS:	case T_CNAME:	case T_PTR:		putchar(' ');		(void)ns_nprint(cp, bp);		break;	case T_MX:		putchar(' ');		(void)ns_nprint(cp + 2, bp);		printf(" %d", EXTRACT_16BITS(cp));		break;	case T_TXT:		putchar(' ');		(void)ns_cprint(cp, bp);		break;	case T_UNSPECA:		/* One long string */	        printf(" %.*s", len, cp);		break;	}	return (rp);		/* XXX This isn't always right */}voidns_print(register const u_char *bp, u_int length){	register const HEADER *np;	register int qdcount, ancount, nscount, arcount;	register const u_char *cp;	np = (const HEADER *)bp;	/* get the byte-order right */	qdcount = ntohs(np->qdcount);	ancount = ntohs(np->ancount);	nscount = ntohs(np->nscount);	arcount = ntohs(np->arcount);	if (np->qr) {		/* this is a response */		printf(" %d%s%s%s%s%s",			ntohs(np->id),			ns_ops[np->opcode],			ns_resp[np->rcode],			np->aa? "*" : "",			np->ra? "" : "-",			np->tc? "|" : "");		if (qdcount != 1)			printf(" [%dq]", qdcount);		/* Print QUESTION section on -vv */		if (vflag > 1) {		            fputs(" q: ", stdout);			    cp = ns_nprint((const u_char *)(np + 1), bp);		} else			    cp = ns_nskip((const u_char *)(np + 1), bp);		printf(" %d/%d/%d", ancount, nscount, arcount);		if (ancount--) {			cp = ns_rprint(cp + 4, bp);			while (ancount-- && cp < snapend) {				putchar(',');				cp = ns_rprint(cp, bp);			}		}	}	else {		/* this is a request */		printf(" %d%s%s",		        ntohs(np->id),			ns_ops[np->opcode],			np->rd? "+" : "");		/* any weirdness? */		if (*(((u_short *)np)+1) & htons(0x6ff))			printf(" [b2&3=0x%x]", ntohs(*(((u_short *)np)+1)));		if (np->opcode == IQUERY) {			if (qdcount)				printf(" [%dq]", qdcount);			if (ancount != 1)				printf(" [%da]", ancount);		}		else {			if (ancount)				printf(" [%da]", ancount);			if (qdcount != 1)				printf(" [%dq]", qdcount);		}		if (nscount)			printf(" [%dn]", nscount);		if (arcount)			printf(" [%dau]", arcount);		ns_qprint((const u_char *)(np + 1), (const u_char *)np);	}	printf(" (%d)", length);}