Add tcpdump and libpcap.

- Update the file builder generator to handle generator specific cflags and
  includes. The tcpdump and libpcap have localised headers and need specific
  headers paths to see them. There are also module specific flags and these
  need to be passed to the lex and yacc generators.

- Add the tcpdump support.

1 files changed, 829 insertions, 0 deletions

diff --git a/freebsd/contrib/tcpdump/print-bootp.c b/freebsd/contrib/tcpdump/print-bootp.c
new file mode 100644
index 00000000..abf8efc0
--- /dev/null
+++ b/freebsd/contrib/tcpdump/print-bootp.c
@@ -0,0 +1,829 @@
+#include <machine/rtems-bsd-user-space.h>
+
+/*
+ * Copyright (c) 1990, 1991, 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.
+ *
+ * Format and print bootp packets.
+ *
+ * $FreeBSD$
+ */
+#ifndef lint
+static const char rcsid[] _U_ =
+    "@(#) $Header: /tcpdump/master/tcpdump/print-bootp.c,v 1.89 2008-04-22 09:45:08 hannes Exp $ (LBL)";
+#endif
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <tcpdump-stdinc.h>
+
+#include <stdio.h>
+#include <string.h>
+
+#include "interface.h"
+#include "addrtoname.h"
+#include "extract.h"
+#include "ether.h"
+#include "bootp.h"
+
+static void rfc1048_print(const u_char *);
+static void cmu_print(const u_char *);
+static char *client_fqdn_flags(u_int flags);
+
+static char tstr[] = " [|bootp]";
+
+static const struct tok bootp_flag_values[] = {
+    { 0x8000,                   "Broadcast" },
+    { 0, NULL}
+};
+
+static const struct tok bootp_op_values[] = {
+    { BOOTPREQUEST,             "Request" },
+    { BOOTPREPLY,               "Reply" },
+    { 0, NULL}
+};
+
+/*
+ * Print bootp requests
+ */
+void
+bootp_print(register const u_char *cp, u_int length)
+{
+	register const struct bootp *bp;
+	static const u_char vm_cmu[4] = VM_CMU;
+	static const u_char vm_rfc1048[4] = VM_RFC1048;
+
+	bp = (const struct bootp *)cp;
+	TCHECK(bp->bp_op);
+
+        printf("BOOTP/DHCP, %s",
+	       tok2str(bootp_op_values, "unknown (0x%02x)", bp->bp_op));
+
+	if (bp->bp_htype == 1 && bp->bp_hlen == 6 && bp->bp_op == BOOTPREQUEST) {
+		TCHECK2(bp->bp_chaddr[0], 6);
+		printf(" from %s", etheraddr_string(bp->bp_chaddr));
+	}
+
+        printf(", length %u", length);
+
+        if (!vflag)
+            return;
+
+	TCHECK(bp->bp_secs);
+
+	/* The usual hardware address type is 1 (10Mb Ethernet) */
+	if (bp->bp_htype != 1)
+		printf(", htype %d", bp->bp_htype);
+
+	/* The usual length for 10Mb Ethernet address is 6 bytes */
+	if (bp->bp_htype != 1 || bp->bp_hlen != 6)
+		printf(", hlen %d", bp->bp_hlen);
+
+	/* Only print interesting fields */
+	if (bp->bp_hops)
+		printf(", hops %d", bp->bp_hops);
+	if (bp->bp_xid)
+		printf(", xid 0x%x", EXTRACT_32BITS(&bp->bp_xid));
+	if (bp->bp_secs)
+		printf(", secs %d", EXTRACT_16BITS(&bp->bp_secs));
+
+	printf(", Flags [%s]",
+		bittok2str(bootp_flag_values, "none", EXTRACT_16BITS(&bp->bp_flags)));
+	if (vflag > 1)
+		printf(" (0x%04x)", EXTRACT_16BITS(&bp->bp_flags));
+
+	/* Client's ip address */
+	TCHECK(bp->bp_ciaddr);
+	if (bp->bp_ciaddr.s_addr)
+		printf("\n\t  Client-IP %s", ipaddr_string(&bp->bp_ciaddr));
+
+	/* 'your' ip address (bootp client) */
+	TCHECK(bp->bp_yiaddr);
+	if (bp->bp_yiaddr.s_addr)
+		printf("\n\t  Your-IP %s", ipaddr_string(&bp->bp_yiaddr));
+
+	/* Server's ip address */
+	TCHECK(bp->bp_siaddr);
+	if (bp->bp_siaddr.s_addr)
+		printf("\n\t  Server-IP %s", ipaddr_string(&bp->bp_siaddr));
+
+	/* Gateway's ip address */
+	TCHECK(bp->bp_giaddr);
+	if (bp->bp_giaddr.s_addr)
+		printf("\n\t  Gateway-IP %s", ipaddr_string(&bp->bp_giaddr));
+
+	/* Client's Ethernet address */
+	if (bp->bp_htype == 1 && bp->bp_hlen == 6) {
+		TCHECK2(bp->bp_chaddr[0], 6);
+		printf("\n\t  Client-Ethernet-Address %s", etheraddr_string(bp->bp_chaddr));
+	}
+
+	TCHECK2(bp->bp_sname[0], 1);		/* check first char only */
+	if (*bp->bp_sname) {
+		printf("\n\t  sname \"");
+		if (fn_print(bp->bp_sname, snapend)) {
+			putchar('"');
+			fputs(tstr + 1, stdout);
+			return;
+		}
+		putchar('"');
+	}
+	TCHECK2(bp->bp_file[0], 1);		/* check first char only */
+	if (*bp->bp_file) {
+		printf("\n\t  file \"");
+		if (fn_print(bp->bp_file, snapend)) {
+			putchar('"');
+			fputs(tstr + 1, stdout);
+			return;
+		}
+		putchar('"');
+	}
+
+	/* Decode the vendor buffer */
+	TCHECK(bp->bp_vend[0]);
+	if (memcmp((const char *)bp->bp_vend, vm_rfc1048,
+		 sizeof(u_int32_t)) == 0)
+		rfc1048_print(bp->bp_vend);
+	else if (memcmp((const char *)bp->bp_vend, vm_cmu,
+		      sizeof(u_int32_t)) == 0)
+		cmu_print(bp->bp_vend);
+	else {
+		u_int32_t ul;
+
+		ul = EXTRACT_32BITS(&bp->bp_vend);
+		if (ul != 0)
+			printf("\n\t  Vendor-#0x%x", ul);
+	}
+
+	return;
+trunc:
+	fputs(tstr, stdout);
+}
+
+/*
+ * The first character specifies the format to print:
+ *     i - ip address (32 bits)
+ *     p - ip address pairs (32 bits + 32 bits)
+ *     l - long (32 bits)
+ *     L - unsigned long (32 bits)
+ *     s - short (16 bits)
+ *     b - period-seperated decimal bytes (variable length)
+ *     x - colon-seperated hex bytes (variable length)
+ *     a - ascii string (variable length)
+ *     B - on/off (8 bits)
+ *     $ - special (explicit code to handle)
+ */
+static struct tok tag2str[] = {
+/* RFC1048 tags */
+	{ TAG_PAD,		" PAD" },
+	{ TAG_SUBNET_MASK,	"iSubnet-Mask" },	/* subnet mask (RFC950) */
+	{ TAG_TIME_OFFSET,	"LTime-Zone" },	/* seconds from UTC */
+	{ TAG_GATEWAY,		"iDefault-Gateway" },	/* default gateway */
+	{ TAG_TIME_SERVER,	"iTime-Server" },	/* time servers (RFC868) */
+	{ TAG_NAME_SERVER,	"iIEN-Name-Server" },	/* IEN name servers (IEN116) */
+	{ TAG_DOMAIN_SERVER,	"iDomain-Name-Server" },	/* domain name (RFC1035) */
+	{ TAG_LOG_SERVER,	"iLOG" },	/* MIT log servers */
+	{ TAG_COOKIE_SERVER,	"iCS" },	/* cookie servers (RFC865) */
+	{ TAG_LPR_SERVER,	"iLPR-Server" },	/* lpr server (RFC1179) */
+	{ TAG_IMPRESS_SERVER,	"iIM" },	/* impress servers (Imagen) */
+	{ TAG_RLP_SERVER,	"iRL" },	/* resource location (RFC887) */
+	{ TAG_HOSTNAME,		"aHostname" },	/* ascii hostname */
+	{ TAG_BOOTSIZE,		"sBS" },	/* 512 byte blocks */
+	{ TAG_END,		" END" },
+/* RFC1497 tags */
+	{ TAG_DUMPPATH,		"aDP" },
+	{ TAG_DOMAINNAME,	"aDomain-Name" },
+	{ TAG_SWAP_SERVER,	"iSS" },
+	{ TAG_ROOTPATH,		"aRP" },
+	{ TAG_EXTPATH,		"aEP" },
+/* RFC2132 tags */
+	{ TAG_IP_FORWARD,	"BIPF" },
+	{ TAG_NL_SRCRT,		"BSRT" },
+	{ TAG_PFILTERS,		"pPF" },
+	{ TAG_REASS_SIZE,	"sRSZ" },
+	{ TAG_DEF_TTL,		"bTTL" },
+	{ TAG_MTU_TIMEOUT,	"lMTU-Timeout" },
+	{ TAG_MTU_TABLE,	"sMTU-Table" },
+	{ TAG_INT_MTU,		"sMTU" },
+	{ TAG_LOCAL_SUBNETS,	"BLSN" },
+	{ TAG_BROAD_ADDR,	"iBR" },
+	{ TAG_DO_MASK_DISC,	"BMD" },
+	{ TAG_SUPPLY_MASK,	"BMS" },
+	{ TAG_DO_RDISC,		"BRouter-Discovery" },
+	{ TAG_RTR_SOL_ADDR,	"iRSA" },
+	{ TAG_STATIC_ROUTE,	"pStatic-Route" },
+	{ TAG_USE_TRAILERS,	"BUT" },
+	{ TAG_ARP_TIMEOUT,	"lAT" },
+	{ TAG_ETH_ENCAP,	"BIE" },
+	{ TAG_TCP_TTL,		"bTT" },
+	{ TAG_TCP_KEEPALIVE,	"lKI" },
+	{ TAG_KEEPALIVE_GO,	"BKG" },
+	{ TAG_NIS_DOMAIN,	"aYD" },
+	{ TAG_NIS_SERVERS,	"iYS" },
+	{ TAG_NTP_SERVERS,	"iNTP" },
+	{ TAG_VENDOR_OPTS,	"bVendor-Option" },
+	{ TAG_NETBIOS_NS,	"iNetbios-Name-Server" },
+	{ TAG_NETBIOS_DDS,	"iWDD" },
+	{ TAG_NETBIOS_NODE,	"$Netbios-Node" },
+	{ TAG_NETBIOS_SCOPE,	"aNetbios-Scope" },
+	{ TAG_XWIN_FS,		"iXFS" },
+	{ TAG_XWIN_DM,		"iXDM" },
+	{ TAG_NIS_P_DOMAIN,	"sN+D" },
+	{ TAG_NIS_P_SERVERS,	"iN+S" },
+	{ TAG_MOBILE_HOME,	"iMH" },
+	{ TAG_SMPT_SERVER,	"iSMTP" },
+	{ TAG_POP3_SERVER,	"iPOP3" },
+	{ TAG_NNTP_SERVER,	"iNNTP" },
+	{ TAG_WWW_SERVER,	"iWWW" },
+	{ TAG_FINGER_SERVER,	"iFG" },
+	{ TAG_IRC_SERVER,	"iIRC" },
+	{ TAG_STREETTALK_SRVR,	"iSTS" },
+	{ TAG_STREETTALK_STDA,	"iSTDA" },
+	{ TAG_REQUESTED_IP,	"iRequested-IP" },
+	{ TAG_IP_LEASE,		"lLease-Time" },
+	{ TAG_OPT_OVERLOAD,	"$OO" },
+	{ TAG_TFTP_SERVER,	"aTFTP" },
+	{ TAG_BOOTFILENAME,	"aBF" },
+	{ TAG_DHCP_MESSAGE,	" DHCP-Message" },
+	{ TAG_SERVER_ID,	"iServer-ID" },
+	{ TAG_PARM_REQUEST,	"bParameter-Request" },
+	{ TAG_MESSAGE,		"aMSG" },
+	{ TAG_MAX_MSG_SIZE,	"sMSZ" },
+	{ TAG_RENEWAL_TIME,	"lRN" },
+	{ TAG_REBIND_TIME,	"lRB" },
+	{ TAG_VENDOR_CLASS,	"aVendor-Class" },
+	{ TAG_CLIENT_ID,	"$Client-ID" },
+/* RFC 2485 */
+	{ TAG_OPEN_GROUP_UAP,	"aUAP" },
+/* RFC 2563 */
+	{ TAG_DISABLE_AUTOCONF,	"BNOAUTO" },
+/* RFC 2610 */
+	{ TAG_SLP_DA,		"bSLP-DA" },	/*"b" is a little wrong */
+	{ TAG_SLP_SCOPE,	"bSLP-SCOPE" },	/*"b" is a little wrong */
+/* RFC 2937 */
+	{ TAG_NS_SEARCH,	"sNSSEARCH" },	/* XXX 's' */
+/* RFC 3011 */
+	{ TAG_IP4_SUBNET_SELECT, "iSUBNET" },
+/* RFC 3442 */
+	{ TAG_CLASSLESS_STATIC_RT, "$Classless-Static-Route" },
+	{ TAG_CLASSLESS_STA_RT_MS, "$Classless-Static-Route-Microsoft" },
+/* http://www.iana.org/assignments/bootp-dhcp-extensions/index.htm */
+	{ TAG_USER_CLASS,	"aCLASS" },
+	{ TAG_SLP_NAMING_AUTH,	"aSLP-NA" },
+	{ TAG_CLIENT_FQDN,	"$FQDN" },
+	{ TAG_AGENT_CIRCUIT,	"$Agent-Information" },
+	{ TAG_AGENT_REMOTE,	"bARMT" },
+	{ TAG_AGENT_MASK,	"bAMSK" },
+	{ TAG_TZ_STRING,	"aTZSTR" },
+	{ TAG_FQDN_OPTION,	"bFQDNS" },	/* XXX 'b' */
+	{ TAG_AUTH,		"bAUTH" },	/* XXX 'b' */
+	{ TAG_VINES_SERVERS,	"iVINES" },
+	{ TAG_SERVER_RANK,	"sRANK" },
+	{ TAG_CLIENT_ARCH,	"sARCH" },
+	{ TAG_CLIENT_NDI,	"bNDI" },	/* XXX 'b' */
+	{ TAG_CLIENT_GUID,	"bGUID" },	/* XXX 'b' */
+	{ TAG_LDAP_URL,		"aLDAP" },
+	{ TAG_6OVER4,		"i6o4" },
+	{ TAG_PRINTER_NAME,	"aPRTR" },
+	{ TAG_MDHCP_SERVER,	"bMDHCP" },	/* XXX 'b' */
+	{ TAG_IPX_COMPAT,	"bIPX" },	/* XXX 'b' */
+	{ TAG_NETINFO_PARENT,	"iNI" },
+	{ TAG_NETINFO_PARENT_TAG, "aNITAG" },
+	{ TAG_URL,		"aURL" },
+	{ TAG_FAILOVER,		"bFAIL" },	/* XXX 'b' */
+	{ 0,			NULL }
+};
+/* 2-byte extended tags */
+static struct tok xtag2str[] = {
+	{ 0,			NULL }
+};
+
+/* DHCP "options overload" types */
+static struct tok oo2str[] = {
+	{ 1,			"file" },
+	{ 2,			"sname" },
+	{ 3,			"file+sname" },
+	{ 0,			NULL }
+};
+
+/* NETBIOS over TCP/IP node type options */
+static struct tok nbo2str[] = {
+	{ 0x1,			"b-node" },
+	{ 0x2,			"p-node" },
+	{ 0x4,			"m-node" },
+	{ 0x8,			"h-node" },
+	{ 0,			NULL }
+};
+
+/* ARP Hardware types, for Client-ID option */
+static struct tok arp2str[] = {
+	{ 0x1,			"ether" },
+	{ 0x6,			"ieee802" },
+	{ 0x7,			"arcnet" },
+	{ 0xf,			"frelay" },
+	{ 0x17,			"strip" },
+	{ 0x18,			"ieee1394" },
+	{ 0,			NULL }
+};
+
+static struct tok dhcp_msg_values[] = {
+        { DHCPDISCOVER, "Discover" },
+        { DHCPOFFER, "Offer" },
+        { DHCPREQUEST, "Request" },
+        { DHCPDECLINE, "Decline" },
+        { DHCPACK, "ACK" },
+        { DHCPNAK, "NACK" },
+        { DHCPRELEASE, "Release" },
+        { DHCPINFORM, "Inform" },
+        { 0,			NULL }
+};
+
+#define AGENT_SUBOPTION_CIRCUIT_ID 	1	/* RFC 3046 */
+#define AGENT_SUBOPTION_REMOTE_ID  	2	/* RFC 3046 */
+#define AGENT_SUBOPTION_SUBSCRIBER_ID 	6	/* RFC 3993 */
+static struct tok agent_suboption_values[] = {
+        { AGENT_SUBOPTION_CIRCUIT_ID, "Circuit-ID" },
+        { AGENT_SUBOPTION_REMOTE_ID, "Remote-ID" },
+        { AGENT_SUBOPTION_SUBSCRIBER_ID, "Subscriber-ID" },
+        { 0,			NULL }
+};
+
+
+static void
+rfc1048_print(register const u_char *bp)
+{
+	register u_int16_t tag;
+	register u_int len;
+	register const char *cp;
+	register char c;
+	int first, idx;
+	u_int32_t ul;
+	u_int16_t us;
+	u_int8_t uc, subopt, suboptlen;
+
+	printf("\n\t  Vendor-rfc1048 Extensions");
+
+	/* Step over magic cookie */
+        printf("\n\t    Magic Cookie 0x%08x", EXTRACT_32BITS(bp));
+	bp += sizeof(int32_t);
+
+	/* Loop while we there is a tag left in the buffer */
+	while (TTEST2(*bp, 1)) {
+		tag = *bp++;
+		if (tag == TAG_PAD && vflag < 3)
+			continue;
+		if (tag == TAG_END && vflag < 3)
+			return;
+		if (tag == TAG_EXTENDED_OPTION) {
+			TCHECK2(*(bp + 1), 2);
+			tag = EXTRACT_16BITS(bp + 1);
+			/* XXX we don't know yet if the IANA will
+			 * preclude overlap of 1-byte and 2-byte spaces.
+			 * If not, we need to offset tag after this step.
+			 */
+			cp = tok2str(xtag2str, "?xT%u", tag);
+		} else
+			cp = tok2str(tag2str, "?T%u", tag);
+		c = *cp++;
+
+		if (tag == TAG_PAD || tag == TAG_END)
+			len = 0;
+		else {
+			/* Get the length; check for truncation */
+			TCHECK2(*bp, 1);
+			len = *bp++;
+		}
+
+		printf("\n\t    %s Option %u, length %u%s", cp, tag, len,
+		    len > 0 ? ": " : "");
+
+		if (tag == TAG_PAD && vflag > 2) {
+			u_int ntag = 1;
+			while (TTEST2(*bp, 1) && *bp == TAG_PAD) {
+				bp++;
+				ntag++;
+			}
+			if (ntag > 1)
+				printf(", occurs %u", ntag);
+		}
+
+		if (!TTEST2(*bp, len)) {
+			printf("[|rfc1048 %u]", len);
+			return;
+		}
+
+		if (tag == TAG_DHCP_MESSAGE && len == 1) {
+			uc = *bp++;
+                        printf("%s", tok2str(dhcp_msg_values, "Unknown (%u)", uc));
+                        continue;
+		}
+
+		if (tag == TAG_PARM_REQUEST) {
+			idx = 0;
+			while (len-- > 0) {
+				uc = *bp++;
+				cp = tok2str(tag2str, "?Option %u", uc);
+				if (idx % 4 == 0)
+					printf("\n\t      ");
+				else
+					printf(", ");
+				printf("%s", cp + 1);
+				idx++;
+			}
+			continue;
+		}
+
+		if (tag == TAG_EXTENDED_REQUEST) {
+			first = 1;
+			while (len > 1) {
+				len -= 2;
+				us = EXTRACT_16BITS(bp);
+				bp += 2;
+				cp = tok2str(xtag2str, "?xT%u", us);
+				if (!first)
+					putchar('+');
+				printf("%s", cp + 1);
+				first = 0;
+			}
+			continue;
+		}
+
+		/* Print data */
+		if (c == '?') {
+			/* Base default formats for unknown tags on data size */
+			if (len & 1)
+				c = 'b';
+			else if (len & 2)
+				c = 's';
+			else
+				c = 'l';
+		}
+		first = 1;
+		switch (c) {
+
+		case 'a':
+			/* ascii strings */
+			putchar('"');
+			if (fn_printn(bp, len, snapend)) {
+				putchar('"');
+				goto trunc;
+			}
+			putchar('"');
+			bp += len;
+			len = 0;
+			break;
+
+		case 'i':
+		case 'l':
+		case 'L':
+			/* ip addresses/32-bit words */
+			while (len >= sizeof(ul)) {
+				if (!first)
+					putchar(',');
+				ul = EXTRACT_32BITS(bp);
+				if (c == 'i') {
+					ul = htonl(ul);
+					printf("%s", ipaddr_string(&ul));
+				} else if (c == 'L')
+					printf("%d", ul);
+				else
+					printf("%u", ul);
+				bp += sizeof(ul);
+				len -= sizeof(ul);
+				first = 0;
+			}
+			break;
+
+		case 'p':
+			/* IP address pairs */
+			while (len >= 2*sizeof(ul)) {
+				if (!first)
+					putchar(',');
+				memcpy((char *)&ul, (const char *)bp, sizeof(ul));
+				printf("(%s:", ipaddr_string(&ul));
+				bp += sizeof(ul);
+				memcpy((char *)&ul, (const char *)bp, sizeof(ul));
+				printf("%s)", ipaddr_string(&ul));
+				bp += sizeof(ul);
+				len -= 2*sizeof(ul);
+				first = 0;
+			}
+			break;
+
+		case 's':
+			/* shorts */
+			while (len >= sizeof(us)) {
+				if (!first)
+					putchar(',');
+				us = EXTRACT_16BITS(bp);
+				printf("%u", us);
+				bp += sizeof(us);
+				len -= sizeof(us);
+				first = 0;
+			}
+			break;
+
+		case 'B':
+			/* boolean */
+			while (len > 0) {
+				if (!first)
+					putchar(',');
+				switch (*bp) {
+				case 0:
+					putchar('N');
+					break;
+				case 1:
+					putchar('Y');
+					break;
+				default:
+					printf("%u?", *bp);
+					break;
+				}
+				++bp;
+				--len;
+				first = 0;
+			}
+			break;
+
+		case 'b':
+		case 'x':
+		default:
+			/* Bytes */
+			while (len > 0) {
+				if (!first)
+					putchar(c == 'x' ? ':' : '.');
+				if (c == 'x')
+					printf("%02x", *bp);
+				else
+					printf("%u", *bp);
+				++bp;
+				--len;
+				first = 0;
+			}
+			break;
+
+		case '$':
+			/* Guys we can't handle with one of the usual cases */
+			switch (tag) {
+
+			case TAG_NETBIOS_NODE:
+				/* this option should be at least 1 byte long */
+				if (len < 1)  {
+					printf("ERROR: option %u len %u < 1 bytes",
+					    TAG_NETBIOS_NODE, len);
+					break;
+				}
+				tag = *bp++;
+				--len;
+				fputs(tok2str(nbo2str, NULL, tag), stdout);
+				break;
+
+			case TAG_OPT_OVERLOAD:
+				/* this option should be at least 1 byte long */
+				if (len < 1)  {
+					printf("ERROR: option %u len %u < 1 bytes",
+					    TAG_OPT_OVERLOAD, len);
+					break;
+				}
+				tag = *bp++;
+				--len;
+				fputs(tok2str(oo2str, NULL, tag), stdout);
+				break;
+
+			case TAG_CLIENT_FQDN:
+				/* this option should be at least 3 bytes long */
+				if (len < 3)  {
+					printf("ERROR: option %u len %u < 3 bytes",
+					    TAG_CLIENT_FQDN, len);
+					bp += len;
+					len = 0;
+					break;
+				}
+				if (*bp)
+					printf("[%s] ", client_fqdn_flags(*bp));
+				bp++;
+				if (*bp || *(bp+1))
+					printf("%u/%u ", *bp, *(bp+1));
+				bp += 2;
+				putchar('"');
+				if (fn_printn(bp, len - 3, snapend)) {
+					putchar('"');
+					goto trunc;
+				}
+				putchar('"');
+				bp += len - 3;
+				len = 0;
+				break;
+
+			case TAG_CLIENT_ID:
+			    {	int type;
+
+				/* this option should be at least 1 byte long */
+				if (len < 1)  {
+					printf("ERROR: option %u len %u < 1 bytes",
+					    TAG_CLIENT_ID, len);
+					break;
+				}
+				type = *bp++;
+				len--;
+				if (type == 0) {
+					putchar('"');
+					if (fn_printn(bp, len, snapend)) {
+						putchar('"');
+						goto trunc;
+					}
+					putchar('"');
+					bp += len;
+					len = 0;
+					break;
+				} else {
+					printf("%s ", tok2str(arp2str, "hardware-type %u,", type));
+					while (len > 0) {
+						if (!first)
+							putchar(':');
+						printf("%02x", *bp);
+						++bp;
+						--len;
+						first = 0;
+					}
+				}
+				break;
+			    }
+
+			case TAG_AGENT_CIRCUIT:
+				while (len >= 2) {
+					subopt = *bp++;
+					suboptlen = *bp++;
+					len -= 2;
+					if (suboptlen > len) {
+						printf("\n\t      %s SubOption %u, length %u: length goes past end of option",
+						   tok2str(agent_suboption_values, "Unknown", subopt),
+						   subopt,
+						   suboptlen);
+						bp += len;
+						len = 0;
+						break;
+					}
+					printf("\n\t      %s SubOption %u, length %u: ",
+					   tok2str(agent_suboption_values, "Unknown", subopt),
+					   subopt,
+					   suboptlen);
+					switch (subopt) {
+
+                                        case AGENT_SUBOPTION_CIRCUIT_ID: /* fall through */
+                                        case AGENT_SUBOPTION_REMOTE_ID:
+                                        case AGENT_SUBOPTION_SUBSCRIBER_ID:
+                                                fn_printn(bp, suboptlen, NULL);
+                                                break;
+
+					default:
+						print_unknown_data(bp, "\n\t\t", suboptlen);
+					}
+
+					len -= suboptlen;
+					bp += suboptlen;
+			    }
+			    break;
+
+			case TAG_CLASSLESS_STATIC_RT:
+			case TAG_CLASSLESS_STA_RT_MS:
+			{	
+				u_int mask_width, significant_octets, i;
+
+				/* this option should be at least 5 bytes long */
+				if (len < 5)  {
+					printf("ERROR: option %u len %u < 5 bytes",
+					    TAG_CLASSLESS_STATIC_RT, len);
+					bp += len;
+					len = 0;
+					break;
+				}
+				while (len > 0) {
+					if (!first)
+						putchar(',');
+					mask_width = *bp++;
+					len--;
+					/* mask_width <= 32 */
+					if (mask_width > 32) {
+						printf("[ERROR: Mask width (%d) > 32]",  mask_width);
+						bp += len;
+						len = 0;
+						break;
+					}
+					significant_octets = (mask_width + 7) / 8;
+					/* significant octets + router(4) */
+					if (len < significant_octets + 4) {
+						printf("[ERROR: Remaining length (%u) < %u bytes]",  len, significant_octets + 4);
+						bp += len;
+						len = 0;
+						break;
+					}
+					putchar('(');
+					if (mask_width == 0)
+						printf("default");
+					else {
+						for (i = 0; i < significant_octets ; i++) {
+							if (i > 0)
+								putchar('.');
+							printf("%d", *bp++);
+						}
+						for (i = significant_octets ; i < 4 ; i++)
+							printf(".0");
+						printf("/%d", mask_width);
+					}
+					memcpy((char *)&ul, (const char *)bp, sizeof(ul));
+					printf(":%s)", ipaddr_string(&ul));
+					bp += sizeof(ul);
+					len -= (significant_octets + 4);
+					first = 0;
+				}
+			}
+			break;
+
+			default:
+				printf("[unknown special tag %u, size %u]",
+				    tag, len);
+				bp += len;
+				len = 0;
+				break;
+			}
+			break;
+		}
+		/* Data left over? */
+		if (len) {
+			printf("\n\t  trailing data length %u", len);
+			bp += len;
+		}
+	}
+	return;
+trunc:
+	printf("|[rfc1048]");
+}
+
+static void
+cmu_print(register const u_char *bp)
+{
+	register const struct cmu_vend *cmu;
+
+#define PRINTCMUADDR(m, s) { TCHECK(cmu->m); \
+    if (cmu->m.s_addr != 0) \
+	printf(" %s:%s", s, ipaddr_string(&cmu->m.s_addr)); }
+
+	printf(" vend-cmu");
+	cmu = (const struct cmu_vend *)bp;
+
+	/* Only print if there are unknown bits */
+	TCHECK(cmu->v_flags);
+	if ((cmu->v_flags & ~(VF_SMASK)) != 0)
+		printf(" F:0x%x", cmu->v_flags);
+	PRINTCMUADDR(v_dgate, "DG");
+	PRINTCMUADDR(v_smask, cmu->v_flags & VF_SMASK ? "SM" : "SM*");
+	PRINTCMUADDR(v_dns1, "NS1");
+	PRINTCMUADDR(v_dns2, "NS2");
+	PRINTCMUADDR(v_ins1, "IEN1");
+	PRINTCMUADDR(v_ins2, "IEN2");
+	PRINTCMUADDR(v_ts1, "TS1");
+	PRINTCMUADDR(v_ts2, "TS2");
+	return;
+
+trunc:
+	fputs(tstr, stdout);
+#undef PRINTCMUADDR
+}
+
+static char *
+client_fqdn_flags(u_int flags)
+{
+	static char buf[8+1];
+	int i = 0;
+
+	if (flags & CLIENT_FQDN_FLAGS_S)
+		buf[i++] = 'S';
+	if (flags & CLIENT_FQDN_FLAGS_O)
+		buf[i++] = 'O';
+	if (flags & CLIENT_FQDN_FLAGS_E)
+		buf[i++] = 'E';
+	if (flags & CLIENT_FQDN_FLAGS_N)
+		buf[i++] = 'N';
+	buf[i] = '\0';
+
+	return buf;
+}