Virgin import of unmodified tcpdump v3.2.1 distribution from LBL.

Obtained from: ftp://ftp.ee.lbl.gov/tcpdump.tar.Z on 19-Aug-1996.

1 files changed, 400 insertions, 0 deletions

diff --git a/contrib/tcpdump/print-domain.c b/contrib/tcpdump/print-domain.c
new file mode 100644
index 0000000..cbeae4b
--- /dev/null
+++ b/contrib/tcpdump/print-domain.c
@@ -0,0 +1,400 @@
+/*
+ * Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996
+ *	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: print-domain.c,v 1.35 96/07/23 14:17:22 leres Exp $ (LBL)";
+#endif
+
+#include <sys/param.h>
+#include <sys/time.h>
+#include <sys/socket.h>
+
+#if __STDC__
+struct mbuf;
+struct rtentry;
+#endif
+#include <net/if.h>
+
+#include <netinet/in.h>
+#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>
+
+#undef NOERROR					/* Solaris sucks */
+#undef T_UNSPEC					/* SINIX does too */
+#include <arpa/nameser.h>
+
+#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) */
+#endif
+
+static 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 " },
+	{ T_UINFO,	"UINFO" },
+	{ T_UID,	"UID" },
+	{ 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 void
+ns_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*/
+}
+
+void
+ns_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);
+}