Flatten vendor/tcpdump and remove keyword expansion.

1 files changed, 0 insertions, 1461 deletions

diff --git a/contrib/tcpdump/tcpdump.c b/contrib/tcpdump/tcpdump.c
deleted file mode 100644
index caf419e..0000000
--- a/contrib/tcpdump/tcpdump.c
+++ /dev/null
@@ -1,1461 +0,0 @@
-/*
- * Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 2000
- *	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.
- *
- * Support for splitting captures into multiple files with a maximum
- * file size:
- *
- * Copyright (c) 2001
- *	Seth Webster <swebster@sst.ll.mit.edu>
- */
-
-#ifndef lint
-static const char copyright[] _U_ =
-    "@(#) Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 2000\n\
-The Regents of the University of California.  All rights reserved.\n";
-static const char rcsid[] _U_ =
-    "@(#) $Header: /tcpdump/master/tcpdump/tcpdump.c,v 1.253.2.13 2007/09/12 19:48:51 guy Exp $ (LBL)";
-#endif
-
-/*
- * tcpdump - monitor tcp/ip traffic on an ethernet.
- *
- * First written in 1987 by Van Jacobson, Lawrence Berkeley Laboratory.
- * Mercilessly hacked and occasionally improved since then via the
- * combined efforts of Van, Steve McCanne and Craig Leres of LBL.
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include <tcpdump-stdinc.h>
-
-#ifdef WIN32
-#include "getopt.h"
-#include "w32_fzs.h"
-extern int strcasecmp (const char *__s1, const char *__s2);
-extern int SIZE_BUF;
-#define off_t long
-#define uint UINT
-#endif /* WIN32 */
-
-#ifdef HAVE_SMI_H
-#include <smi.h>
-#endif
-
-#include <pcap.h>
-#include <signal.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#ifndef WIN32
-#include <pwd.h>
-#include <grp.h>
-#include <errno.h>
-#endif /* WIN32 */
-
-#include "netdissect.h"
-#include "interface.h"
-#include "addrtoname.h"
-#include "machdep.h"
-#include "setsignal.h"
-#include "gmt2local.h"
-#include "pcap-missing.h"
-
-netdissect_options Gndo;
-netdissect_options *gndo = &Gndo;
-
-/*
- * Define the maximum number of files for the -C flag, and how many
- * characters can be added to a filename for the -C flag (which
- * should be enough to handle MAX_CFLAG - 1).
- */
-#define MAX_CFLAG	1000000
-#define MAX_CFLAG_CHARS	6
-
-int dflag;			/* print filter code */
-int Lflag;			/* list available data link types and exit */
-
-static int infodelay;
-static int infoprint;
-
-char *program_name;
-
-int32_t thiszone;		/* seconds offset from gmt to local time */
-
-/* Forwards */
-static RETSIGTYPE cleanup(int);
-static void usage(void) __attribute__((noreturn));
-static void show_dlts_and_exit(pcap_t *pd) __attribute__((noreturn));
-
-static void print_packet(u_char *, const struct pcap_pkthdr *, const u_char *);
-static void ndo_default_print(netdissect_options *, const u_char *, u_int);
-static void dump_packet_and_trunc(u_char *, const struct pcap_pkthdr *, const u_char *);
-static void dump_packet(u_char *, const struct pcap_pkthdr *, const u_char *);
-static void droproot(const char *, const char *);
-static void ndo_error(netdissect_options *ndo, const char *fmt, ...);
-static void ndo_warning(netdissect_options *ndo, const char *fmt, ...);
-
-#ifdef SIGINFO
-RETSIGTYPE requestinfo(int);
-#endif
-
-#if defined(USE_WIN32_MM_TIMER)
-  #include <MMsystem.h>
-  static UINT timer_id;
-  static void CALLBACK verbose_stats_dump(UINT, UINT, DWORD_PTR, DWORD_PTR, DWORD_PTR);
-#elif defined(HAVE_ALARM)
-  static void verbose_stats_dump(int sig);
-#endif
-
-static void info(int);
-static u_int packets_captured;
-
-typedef u_int (*if_printer)(const struct pcap_pkthdr *, const u_char *);
-
-struct printer {
-	if_printer f;
-	int type;
-};
-
-static struct printer printers[] = {
-	{ arcnet_if_print,	DLT_ARCNET },
-#ifdef DLT_ARCNET_LINUX
-	{ arcnet_linux_if_print, DLT_ARCNET_LINUX },
-#endif
-	{ ether_if_print,	DLT_EN10MB },
-	{ token_if_print,	DLT_IEEE802 },
-#ifdef DLT_LANE8023
-	{ lane_if_print,        DLT_LANE8023 },
-#endif
-#ifdef DLT_CIP
-	{ cip_if_print,         DLT_CIP },
-#endif
-#ifdef DLT_ATM_CLIP
-	{ cip_if_print,         DLT_ATM_CLIP },
-#endif
-	{ sl_if_print,		DLT_SLIP },
-#ifdef DLT_SLIP_BSDOS
-	{ sl_bsdos_if_print,	DLT_SLIP_BSDOS },
-#endif
-	{ ppp_if_print,		DLT_PPP },
-#ifdef DLT_PPP_WITHDIRECTION
-	{ ppp_if_print,		DLT_PPP_WITHDIRECTION },
-#endif
-#ifdef DLT_PPP_BSDOS
-	{ ppp_bsdos_if_print,	DLT_PPP_BSDOS },
-#endif
-	{ fddi_if_print,	DLT_FDDI },
-	{ null_if_print,	DLT_NULL },
-#ifdef DLT_LOOP
-	{ null_if_print,	DLT_LOOP },
-#endif
-	{ raw_if_print,		DLT_RAW },
-	{ atm_if_print,		DLT_ATM_RFC1483 },
-#ifdef DLT_C_HDLC
-	{ chdlc_if_print,	DLT_C_HDLC },
-#endif
-#ifdef DLT_HDLC
-	{ chdlc_if_print,	DLT_HDLC },
-#endif
-#ifdef DLT_PPP_SERIAL
-	{ ppp_hdlc_if_print,    DLT_PPP_SERIAL },
-#endif
-#ifdef DLT_PPP_ETHER
-	{ pppoe_if_print,	DLT_PPP_ETHER },
-#endif
-#ifdef DLT_LINUX_SLL
-	{ sll_if_print,		DLT_LINUX_SLL },
-#endif
-#ifdef DLT_IEEE802_11
-	{ ieee802_11_if_print,	DLT_IEEE802_11},
-#endif
-#ifdef DLT_LTALK
-	{ ltalk_if_print,	DLT_LTALK },
-#endif
-#if defined(DLT_PFLOG) && defined(HAVE_NET_PFVAR_H)
-	{ pflog_if_print, 	DLT_PFLOG },
-#endif
-#ifdef DLT_FR
-	{ fr_if_print,		DLT_FR },
-#endif
-#ifdef DLT_FRELAY
-	{ fr_if_print,		DLT_FRELAY },
-#endif
-#ifdef DLT_SUNATM
-	{ sunatm_if_print,	DLT_SUNATM },
-#endif
-#ifdef DLT_IP_OVER_FC
-	{ ipfc_if_print,	DLT_IP_OVER_FC },
-#endif
-#ifdef DLT_PRISM_HEADER
-	{ prism_if_print,	DLT_PRISM_HEADER },
-#endif
-#ifdef DLT_IEEE802_11_RADIO
-	{ ieee802_11_radio_if_print,	DLT_IEEE802_11_RADIO },
-#endif
-#ifdef DLT_ENC
-	{ enc_if_print, 	DLT_ENC },
-#endif
-#ifdef DLT_SYMANTEC_FIREWALL
-	{ symantec_if_print, 	DLT_SYMANTEC_FIREWALL },
-#endif
-#ifdef DLT_APPLE_IP_OVER_IEEE1394
-	{ ap1394_if_print,	DLT_APPLE_IP_OVER_IEEE1394 },
-#endif
-#ifdef DLT_JUNIPER_ATM1
-	{ juniper_atm1_print,	DLT_JUNIPER_ATM1 },
-#endif
-#ifdef DLT_JUNIPER_ATM2
-	{ juniper_atm2_print,	DLT_JUNIPER_ATM2 },
-#endif
-#ifdef DLT_JUNIPER_MFR
-	{ juniper_mfr_print,	DLT_JUNIPER_MFR },
-#endif
-#ifdef DLT_JUNIPER_MLFR
-	{ juniper_mlfr_print,	DLT_JUNIPER_MLFR },
-#endif
-#ifdef DLT_JUNIPER_MLPPP
-	{ juniper_mlppp_print,	DLT_JUNIPER_MLPPP },
-#endif
-#ifdef DLT_JUNIPER_PPPOE
-	{ juniper_pppoe_print,	DLT_JUNIPER_PPPOE },
-#endif
-#ifdef DLT_JUNIPER_PPPOE_ATM
-	{ juniper_pppoe_atm_print, DLT_JUNIPER_PPPOE_ATM },
-#endif
-#ifdef DLT_JUNIPER_GGSN
-	{ juniper_ggsn_print,	DLT_JUNIPER_GGSN },
-#endif
-#ifdef DLT_JUNIPER_ES
-	{ juniper_es_print,	DLT_JUNIPER_ES },
-#endif
-#ifdef DLT_JUNIPER_MONITOR
-	{ juniper_monitor_print, DLT_JUNIPER_MONITOR },
-#endif
-#ifdef DLT_JUNIPER_SERVICES
-	{ juniper_services_print, DLT_JUNIPER_SERVICES },
-#endif
-#ifdef DLT_JUNIPER_ETHER
-	{ juniper_ether_print, DLT_JUNIPER_ETHER },
-#endif
-#ifdef DLT_JUNIPER_PPP
-	{ juniper_ppp_print, DLT_JUNIPER_PPP },
-#endif
-#ifdef DLT_JUNIPER_FRELAY
-	{ juniper_frelay_print, DLT_JUNIPER_FRELAY },
-#endif
-#ifdef DLT_JUNIPER_CHDLC
-	{ juniper_chdlc_print, DLT_JUNIPER_CHDLC },
-#endif
-#ifdef DLT_MFR
-	{ mfr_if_print, DLT_MFR },
-#endif
-	{ NULL,			0 },
-};
-
-static if_printer
-lookup_printer(int type)
-{
-	struct printer *p;
-
-	for (p = printers; p->f; ++p)
-		if (type == p->type)
-			return p->f;
-
-	return NULL;
-	/* NOTREACHED */
-}
-
-static pcap_t *pd;
-
-extern int optind;
-extern int opterr;
-extern char *optarg;
-
-struct print_info {
-	if_printer printer;
-};
-
-struct dump_info {
-	char	*WFileName;
-	pcap_t	*pd;
-	pcap_dumper_t *p;
-};
-
-static void
-show_dlts_and_exit(pcap_t *pd)
-{
-	int n_dlts;
-	int *dlts = 0;
-	const char *dlt_name;
-
-	n_dlts = pcap_list_datalinks(pd, &dlts);
-	if (n_dlts < 0)
-		error("%s", pcap_geterr(pd));
-	else if (n_dlts == 0 || !dlts)
-		error("No data link types.");
-
-	(void) fprintf(stderr, "Data link types (use option -y to set):\n");
-
-	while (--n_dlts >= 0) {
-		dlt_name = pcap_datalink_val_to_name(dlts[n_dlts]);
-		if (dlt_name != NULL) {
-			(void) fprintf(stderr, "  %s (%s)", dlt_name,
-			    pcap_datalink_val_to_description(dlts[n_dlts]));
-
-			/*
-			 * OK, does tcpdump handle that type?
-			 */
-			if (lookup_printer(dlts[n_dlts]) == NULL)
-				(void) fprintf(stderr, " (not supported)");
-			putchar('\n');
-		} else {
-			(void) fprintf(stderr, "  DLT %d (not supported)\n",
-			    dlts[n_dlts]);
-		}
-	}
-	free(dlts);
-	exit(0);
-}
-
-/*
- * Set up flags that might or might not be supported depending on the
- * version of libpcap we're using.
- */
-#ifdef WIN32
-#define B_FLAG		"B:"
-#define B_FLAG_USAGE	" [ -B size ]"
-#else /* WIN32 */
-#define B_FLAG
-#define B_FLAG_USAGE
-#endif /* WIN32 */
-
-#ifdef HAVE_PCAP_FINDALLDEVS
-#ifndef HAVE_PCAP_IF_T
-#undef HAVE_PCAP_FINDALLDEVS
-#endif
-#endif
-
-#ifdef HAVE_PCAP_FINDALLDEVS
-#define D_FLAG	"D"
-#else
-#define D_FLAG
-#endif
-
-#ifdef HAVE_PCAP_DUMP_FLUSH
-#define U_FLAG	"U"
-#else
-#define U_FLAG
-#endif
-
-#ifndef WIN32
-/* Drop root privileges and chroot if necessary */
-static void
-droproot(const char *username, const char *chroot_dir)
-{
-	struct passwd *pw = NULL;
-
-	if (chroot_dir && !username) {
-		fprintf(stderr, "tcpdump: Chroot without dropping root is insecure\n");
-		exit(1);
-	}
-	
-	pw = getpwnam(username);
-	if (pw) {
-		if (chroot_dir) {
-			if (chroot(chroot_dir) != 0 || chdir ("/") != 0) {
-				fprintf(stderr, "tcpdump: Couldn't chroot/chdir to '%.64s': %s\n",
-				    chroot_dir, pcap_strerror(errno));
-				exit(1);
-			}
-		}
-		if (initgroups(pw->pw_name, pw->pw_gid) != 0 ||
-		    setgid(pw->pw_gid) != 0 || setuid(pw->pw_uid) != 0) {
-			fprintf(stderr, "tcpdump: Couldn't change to '%.32s' uid=%lu gid=%lu: %s\n",
-			    username, 
-			    (unsigned long)pw->pw_uid,
-			    (unsigned long)pw->pw_gid,
-			    pcap_strerror(errno));
-			exit(1);
-		}
-	}
-	else {
-		fprintf(stderr, "tcpdump: Couldn't find user '%.32s'\n",
-		    username);
-		exit(1);
-	}
-}
-#endif /* WIN32 */
-
-static int
-getWflagChars(int x)
-{
-	int c = 0;
-
-	x -= 1;
-	while (x > 0) {
-		c += 1;
-		x /= 10;
-	}
-
-	return c;
-}
-
-
-static void
-MakeFilename(char *buffer, char *orig_name, int cnt, int max_chars)
-{
-	if (cnt == 0 && max_chars == 0)
-		strcpy(buffer, orig_name);
-	else
-		sprintf(buffer, "%s%0*d", orig_name, max_chars, cnt);
-}
-
-static int tcpdump_printf(netdissect_options *ndo _U_,
-			  const char *fmt, ...)
-{
-  
-  va_list args;
-  int ret;
-
-  va_start(args, fmt);
-  ret=vfprintf(stdout, fmt, args);
-  va_end(args);
-
-  return ret;
-}
-
-int
-main(int argc, char **argv)
-{
-	register int cnt, op, i;
-	bpf_u_int32 localnet, netmask;
-	register char *cp, *infile, *cmdbuf, *device, *RFileName, *WFileName, *WFileNameAlt;
-	pcap_handler callback;
-	int type;
-	struct bpf_program fcode;
-#ifndef WIN32
-	RETSIGTYPE (*oldhandler)(int);
-#endif
-	struct print_info printinfo;
-	struct dump_info dumpinfo;
-	u_char *pcap_userdata;
-	char ebuf[PCAP_ERRBUF_SIZE];
-	char *username = NULL;
-	char *chroot_dir = NULL;
-#ifdef HAVE_PCAP_FINDALLDEVS
-	pcap_if_t *devpointer;
-	int devnum;
-#endif
-	int status;
-#ifdef WIN32
-	u_int UserBufferSize = 1000000;
-	if(wsockinit() != 0) return 1;
-#endif /* WIN32 */
-
-        gndo->ndo_Oflag=1;
-	gndo->ndo_Rflag=1;
-	gndo->ndo_dlt=-1;
-	gndo->ndo_default_print=ndo_default_print;
-	gndo->ndo_printf=tcpdump_printf;
-	gndo->ndo_error=ndo_error;
-	gndo->ndo_warning=ndo_warning;
-	gndo->ndo_snaplen = DEFAULT_SNAPLEN;
-  
-	cnt = -1;
-	device = NULL;
-	infile = NULL;
-	RFileName = NULL;
-	WFileName = NULL;
-	if ((cp = strrchr(argv[0], '/')) != NULL)
-		program_name = cp + 1;
-	else
-		program_name = argv[0];
-
-	if (abort_on_misalignment(ebuf, sizeof(ebuf)) < 0)
-		error("%s", ebuf);
-
-#ifdef LIBSMI
-	smiInit("tcpdump");
-#endif
-
-	opterr = 0;
-	while (
-	    (op = getopt(argc, argv, "aA" B_FLAG "c:C:d" D_FLAG "eE:fF:i:lLm:M:nNOpqr:Rs:StT:u" U_FLAG "vw:W:xXy:YZ:")) != -1)
-		switch (op) {
-
-		case 'a':
-			/* compatibility for old -a */
-			break;
-
-		case 'A':
-			++Aflag;
-			break;
-
-#ifdef WIN32
-		case 'B':
-			UserBufferSize = atoi(optarg)*1024;
-			if (UserBufferSize < 0)
-				error("invalid packet buffer size %s", optarg);
-			break;
-#endif /* WIN32 */
-
-		case 'c':
-			cnt = atoi(optarg);
-			if (cnt <= 0)
-				error("invalid packet count %s", optarg);
-			break;
-
-		case 'C':
-			Cflag = atoi(optarg) * 1000000;
-			if (Cflag < 0)
-				error("invalid file size %s", optarg);
-			break;
-
-		case 'd':
-			++dflag;
-			break;
-
-#ifdef HAVE_PCAP_FINDALLDEVS
-		case 'D':
-			if (pcap_findalldevs(&devpointer, ebuf) < 0)
-				error("%s", ebuf);
-			else {
-				for (i = 0; devpointer != 0; i++) {
-					printf("%d.%s", i+1, devpointer->name);
-					if (devpointer->description != NULL)
-						printf(" (%s)", devpointer->description);
-					printf("\n");
-					devpointer = devpointer->next;
-				}
-			}
-			return 0;
-#endif /* HAVE_PCAP_FINDALLDEVS */
-
-		case 'L':
-			Lflag++;
-			break;
-
-		case 'e':
-			++eflag;
-			break;
-
-		case 'E':
-#ifndef HAVE_LIBCRYPTO
-			warning("crypto code not compiled in");
-#endif
-			gndo->ndo_espsecret = optarg;
-			break;
-
-		case 'f':
-			++fflag;
-			break;
-
-		case 'F':
-			infile = optarg;
-			break;
-
-		case 'i':
-			if (optarg[0] == '0' && optarg[1] == 0)
-				error("Invalid adapter index");
-			
-#ifdef HAVE_PCAP_FINDALLDEVS
-			/*
-			 * If the argument is a number, treat it as
-			 * an index into the list of adapters, as
-			 * printed by "tcpdump -D".
-			 *
-			 * This should be OK on UNIX systems, as interfaces
-			 * shouldn't have names that begin with digits.
-			 * It can be useful on Windows, where more than
-			 * one interface can have the same name.
-			 */
-			if ((devnum = atoi(optarg)) != 0) {
-				if (devnum < 0)
-					error("Invalid adapter index");
-
-				if (pcap_findalldevs(&devpointer, ebuf) < 0)
-					error("%s", ebuf);
-				else {
-					for (i = 0; i < devnum-1; i++){
-						devpointer = devpointer->next;
-						if (devpointer == NULL)
-							error("Invalid adapter index");
-					}
-				}
-				device = devpointer->name;
-				break;
-			}
-#endif /* HAVE_PCAP_FINDALLDEVS */
-			device = optarg;
-			break;
-
-		case 'l':
-#ifdef WIN32
-			/*
-			 * _IOLBF is the same as _IOFBF in Microsoft's C
-			 * libraries; the only alternative they offer
-			 * is _IONBF.
-			 *
-			 * XXX - this should really be checking for MSVC++,
-			 * not WIN32, if, for example, MinGW has its own
-			 * C library that is more UNIX-compatible.
-			 */
-			setvbuf(stdout, NULL, _IONBF, 0);
-#else /* WIN32 */
-#ifdef HAVE_SETLINEBUF
-			setlinebuf(stdout);
-#else
-			setvbuf(stdout, NULL, _IOLBF, 0);
-#endif
-#endif /* WIN32 */
-			break;
-
-		case 'n':
-			++nflag;
-			break;
-
-		case 'N':
-			++Nflag;
-			break;
-
-		case 'm':
-#ifdef LIBSMI
-		        if (smiLoadModule(optarg) == 0) {
-				error("could not load MIB module %s", optarg);
-		        }
-			sflag = 1;
-#else
-			(void)fprintf(stderr, "%s: ignoring option `-m %s' ",
-				      program_name, optarg);
-			(void)fprintf(stderr, "(no libsmi support)\n");
-#endif
-			break;
-
-		case 'M':
-			/* TCP-MD5 shared secret */
-#ifndef HAVE_LIBCRYPTO
-			warning("crypto code not compiled in");
-#endif
-			tcpmd5secret = optarg;
-			break;
-
-		case 'O':
-			Oflag = 0;
-			break;
-
-		case 'p':
-			++pflag;
-			break;
-
-		case 'q':
-			++qflag;
-			++suppress_default_print;
-			break;
-
-		case 'r':
-			RFileName = optarg;
-			break;
-
-		case 'R':
-			Rflag = 0;
-			break;
-
-		case 's': {
-			char *end;
-
-			snaplen = strtol(optarg, &end, 0);
-			if (optarg == end || *end != '\0'
-			    || snaplen < 0 || snaplen > 65535)
-				error("invalid snaplen %s", optarg);
-			else if (snaplen == 0)
-				snaplen = 65535;
-			break;
-		}
-
-		case 'S':
-			++Sflag;
-			break;
-
-		case 't':
-			++tflag;
-			break;
-
-		case 'T':
-			if (strcasecmp(optarg, "vat") == 0)
-				packettype = PT_VAT;
-			else if (strcasecmp(optarg, "wb") == 0)
-				packettype = PT_WB;
-			else if (strcasecmp(optarg, "rpc") == 0)
-				packettype = PT_RPC;
-			else if (strcasecmp(optarg, "rtp") == 0)
-				packettype = PT_RTP;
-			else if (strcasecmp(optarg, "rtcp") == 0)
-				packettype = PT_RTCP;
-			else if (strcasecmp(optarg, "snmp") == 0)
-				packettype = PT_SNMP;
-			else if (strcasecmp(optarg, "cnfp") == 0)
-				packettype = PT_CNFP;
-			else if (strcasecmp(optarg, "tftp") == 0)
-				packettype = PT_TFTP;
-			else if (strcasecmp(optarg, "aodv") == 0)
-				packettype = PT_AODV;
-			else
-				error("unknown packet type `%s'", optarg);
-			break;
-
-		case 'u':
-			++uflag;
-			break;
-
-#ifdef HAVE_PCAP_DUMP_FLUSH
-		case 'U':
-			++Uflag;
-			break;
-#endif
-
-		case 'v':
-			++vflag;
-			break;
-
-		case 'w':
-			WFileName = optarg;
-			break;
-
-		case 'W':
-			Wflag = atoi(optarg);
-			if (Wflag < 0) 
-				error("invalid number of output files %s", optarg);
-			WflagChars = getWflagChars(Wflag);
-			break;
-
-		case 'x':
-			++xflag;
-			++suppress_default_print;
-			break;
-
-		case 'X':
-			++Xflag;
-			++suppress_default_print;
-			break;
-
-		case 'y':
-			gndo->ndo_dltname = optarg;
-			gndo->ndo_dlt =
-			  pcap_datalink_name_to_val(gndo->ndo_dltname);
-			if (gndo->ndo_dlt < 0)
-				error("invalid data link type %s", gndo->ndo_dltname);
-			break;
-
-#if defined(HAVE_PCAP_DEBUG) || defined(HAVE_YYDEBUG)
-		case 'Y':
-			{
-			/* Undocumented flag */
-#ifdef HAVE_PCAP_DEBUG
-			extern int pcap_debug;
-			pcap_debug = 1;
-#else
-			extern int yydebug;
-			yydebug = 1;
-#endif
-			}
-			break;
-#endif
-		case 'Z':
-			if (optarg) {
-				username = strdup(optarg);
-			}
-			else {
-				usage();
-				/* NOTREACHED */
-			}
-			break;
-
-		default:
-			usage();
-			/* NOTREACHED */
-		}
-
-	switch (tflag) {
-
-	case 0: /* Default */
-	case 4: /* Default + Date*/
-		thiszone = gmt2local(0);
-		break;
-
-	case 1: /* No time stamp */
-	case 2: /* Unix timeval style */
-	case 3: /* Microseconds since previous packet */
-		break;
-
-	default: /* Not supported */
-		error("only -t, -tt, -ttt, and -tttt are supported");
-		break;
-	}
-
-#ifdef WITH_CHROOT
-	/* if run as root, prepare for chrooting */
-	if (getuid() == 0 || geteuid() == 0) {
-		/* future extensibility for cmd-line arguments */
-		if (!chroot_dir)
-			chroot_dir = WITH_CHROOT;
-	}
-#endif
-
-#ifdef WITH_USER
-	/* if run as root, prepare for dropping root privileges */
-	if (getuid() == 0 || geteuid() == 0) {
-		/* Run with '-Z root' to restore old behaviour */ 
-		if (!username)
-			username = WITH_USER;
-	}
-#endif
-
-	if (RFileName != NULL) {
-		int dlt;
-		const char *dlt_name;
-
-#ifndef WIN32
-		/*
-		 * We don't need network access, so relinquish any set-UID
-		 * or set-GID privileges we have (if any).
-		 *
-		 * We do *not* want set-UID privileges when opening a
-		 * trace file, as that might let the user read other
-		 * people's trace files (especially if we're set-UID
-		 * root).
-		 */
-		if (setgid(getgid()) != 0 || setuid(getuid()) != 0 )
-			fprintf(stderr, "Warning: setgid/setuid failed !\n");
-#endif /* WIN32 */
-		pd = pcap_open_offline(RFileName, ebuf);
-		if (pd == NULL)
-			error("%s", ebuf);
-		dlt = pcap_datalink(pd);
-		dlt_name = pcap_datalink_val_to_name(dlt);
-		if (dlt_name == NULL) {
-			fprintf(stderr, "reading from file %s, link-type %u\n",
-			    RFileName, dlt);
-		} else {
-			fprintf(stderr,
-			    "reading from file %s, link-type %s (%s)\n",
-			    RFileName, dlt_name,
-			    pcap_datalink_val_to_description(dlt));
-		}
-		localnet = 0;
-		netmask = 0;
-		if (fflag != 0)
-			error("-f and -r options are incompatible");
-	} else {
-		if (device == NULL) {
-			device = pcap_lookupdev(ebuf);
-			if (device == NULL)
-				error("%s", ebuf);
-		}
-#ifdef WIN32
-		if(strlen(device) == 1)	//we assume that an ASCII string is always longer than 1 char
-		{						//a Unicode string has a \0 as second byte (so strlen() is 1)
-			fprintf(stderr, "%s: listening on %ws\n", program_name, device);
-		}
-		else
-		{
-			fprintf(stderr, "%s: listening on %s\n", program_name, device);
-		}
-
-		fflush(stderr);	
-#endif /* WIN32 */
-		*ebuf = '\0';
-		pd = pcap_open_live(device, snaplen, !pflag, 1000, ebuf);
-		if (pd == NULL)
-			error("%s", ebuf);
-		else if (*ebuf)
-			warning("%s", ebuf);
-		/*
-		 * Let user own process after socket has been opened.
-		 */
-#ifndef WIN32
-		if (setgid(getgid()) != 0 || setuid(getuid()) != 0)
-			fprintf(stderr, "Warning: setgid/setuid failed !\n");
-#endif /* WIN32 */
-#ifdef WIN32
-		if(UserBufferSize != 1000000)
-			if(pcap_setbuff(pd, UserBufferSize)==-1){
-				error("%s", pcap_geterr(pd));
-			}
-#endif /* WIN32 */
-		if (Lflag)
-			show_dlts_and_exit(pd);
-		if (gndo->ndo_dlt >= 0) {
-#ifdef HAVE_PCAP_SET_DATALINK
-			if (pcap_set_datalink(pd, gndo->ndo_dlt) < 0)
-				error("%s", pcap_geterr(pd));
-#else
-			/*
-			 * We don't actually support changing the
-			 * data link type, so we only let them
-			 * set it to what it already is.
-			 */
-			if (gndo->ndo_dlt != pcap_datalink(pd)) {
-				error("%s is not one of the DLTs supported by this device\n",
-				      gndo->ndo_dltname);
-			}
-#endif
-			(void)fprintf(stderr, "%s: data link type %s\n",
-			              program_name, gndo->ndo_dltname);
-			(void)fflush(stderr);
-		}
-		i = pcap_snapshot(pd);
-		if (snaplen < i) {
-			warning("snaplen raised from %d to %d", snaplen, i);
-			snaplen = i;
-		}
-		if (pcap_lookupnet(device, &localnet, &netmask, ebuf) < 0) {
-			localnet = 0;
-			netmask = 0;
-			warning("%s", ebuf);
-		}
-	}
-	if (infile)
-		cmdbuf = read_infile(infile);
-	else
-		cmdbuf = copy_argv(&argv[optind]);
-
-	if (pcap_compile(pd, &fcode, cmdbuf, Oflag, netmask) < 0)
-		error("%s", pcap_geterr(pd));
-	if (dflag) {
-		bpf_dump(&fcode, dflag);
-		pcap_close(pd);
-		exit(0);
-	}
-	init_addrtoname(localnet, netmask);
-
-#ifndef WIN32	
-	(void)setsignal(SIGPIPE, cleanup);
-#endif /* WIN32 */
-	(void)setsignal(SIGTERM, cleanup);
-	(void)setsignal(SIGINT, cleanup);
-	/* Cooperate with nohup(1) */
-#ifndef WIN32	
-	if ((oldhandler = setsignal(SIGHUP, cleanup)) != SIG_DFL)
-		(void)setsignal(SIGHUP, oldhandler);
-#endif /* WIN32 */
-
-	if (pcap_setfilter(pd, &fcode) < 0)
-		error("%s", pcap_geterr(pd));
-	if (WFileName) {
-		pcap_dumper_t *p;
-
-		WFileNameAlt = (char *)malloc(strlen(WFileName) + MAX_CFLAG_CHARS + 1);
-		if (WFileNameAlt == NULL)
-			error("malloc of WFileNameAlt");
-		MakeFilename(WFileNameAlt, WFileName, 0, WflagChars);
-		p = pcap_dump_open(pd, WFileNameAlt);
-		if (p == NULL)
-			error("%s", pcap_geterr(pd));
-		if (Cflag != 0) {
-			callback = dump_packet_and_trunc;
-			dumpinfo.WFileName = WFileName;
-			dumpinfo.pd = pd;
-			dumpinfo.p = p;
-			pcap_userdata = (u_char *)&dumpinfo;
-		} else {
-			callback = dump_packet;
-			pcap_userdata = (u_char *)p;
-		}
-	} else {
-		type = pcap_datalink(pd);
-		printinfo.printer = lookup_printer(type);
-		if (printinfo.printer == NULL) {
-			gndo->ndo_dltname = pcap_datalink_val_to_name(type);
-			if (gndo->ndo_dltname != NULL)
-				error("unsupported data link type %s",
-				      gndo->ndo_dltname);
-			else
-				error("unsupported data link type %d", type);
-		}
-		callback = print_packet;
-		pcap_userdata = (u_char *)&printinfo;
-	}
-#ifndef WIN32
-	/*
-	 * We cannot do this earlier, because we want to be able to open
-	 * the file (if done) for writing before giving up permissions.
-	 */
-	if (getuid() == 0 || geteuid() == 0) {
-		if (username || chroot_dir)
-			droproot(username, chroot_dir);
-	}
-#endif /* WIN32 */
-#ifdef SIGINFO
-	(void)setsignal(SIGINFO, requestinfo);
-#endif
-
-	if (vflag > 0 && WFileName) {
-		/*
-		 * When capturing to a file, "-v" means tcpdump should,
-		 * every 10 secodns, "v"erbosely report the number of
-		 * packets captured.
-		 */
-#ifdef USE_WIN32_MM_TIMER
-		/* call verbose_stats_dump() each 1000 +/-100msec */
-		timer_id = timeSetEvent(1000, 100, verbose_stats_dump, 0, TIME_PERIODIC);
-		setvbuf(stderr, NULL, _IONBF, 0);
-#elif defined(HAVE_ALARM)
-		(void)setsignal(SIGALRM, verbose_stats_dump);
-		alarm(1);
-#endif
-	}
-
-#ifndef WIN32
-	if (RFileName == NULL) {
-		int dlt;
-		const char *dlt_name;
-
-		if (!vflag && !WFileName) {
-			(void)fprintf(stderr,
-			    "%s: verbose output suppressed, use -v or -vv for full protocol decode\n",
-			    program_name);
-		} else
-			(void)fprintf(stderr, "%s: ", program_name);
-		dlt = pcap_datalink(pd);
-		dlt_name = pcap_datalink_val_to_name(dlt);
-		if (dlt_name == NULL) {
-			(void)fprintf(stderr, "listening on %s, link-type %u, capture size %u bytes\n",
-			    device, dlt, snaplen);
-		} else {
-			(void)fprintf(stderr, "listening on %s, link-type %s (%s), capture size %u bytes\n",
-			    device, dlt_name,
-			    pcap_datalink_val_to_description(dlt), snaplen);
-		}
-		(void)fflush(stderr);
-	}
-#endif /* WIN32 */
-	status = pcap_loop(pd, cnt, callback, pcap_userdata);
-	if (WFileName == NULL) {
-		/*
-		 * We're printing packets.  Flush the printed output,
-		 * so it doesn't get intermingled with error output.
-		 */
-		if (status == -2) {
-			/*
-			 * We got interrupted, so perhaps we didn't
-			 * manage to finish a line we were printing.
-			 * Print an extra newline, just in case.
-			 */
-			putchar('\n');
-		}
-		(void)fflush(stdout);
-	}
-	if (status == -1) {
-		/*
-		 * Error.  Report it.
-		 */
-		(void)fprintf(stderr, "%s: pcap_loop: %s\n",
-		    program_name, pcap_geterr(pd));
-	}
-	if (RFileName == NULL) {
-		/*
-		 * We're doing a live capture.  Report the capture
-		 * statistics.
-		 */
-		info(1);
-	}
-	pcap_close(pd);
-	exit(status == -1 ? 1 : 0);
-}
-
-/* make a clean exit on interrupts */
-static RETSIGTYPE
-cleanup(int signo _U_)
-{
-#ifdef USE_WIN32_MM_TIMER
-	if (timer_id)
-		timeKillEvent(timer_id);
-	timer_id = 0;
-#elif defined(HAVE_ALARM)
-	alarm(0);
-#endif
-
-#ifdef HAVE_PCAP_BREAKLOOP
-	/*
-	 * We have "pcap_breakloop()"; use it, so that we do as little
-	 * as possible in the signal handler (it's probably not safe
-	 * to do anything with standard I/O streams in a signal handler -
-	 * the ANSI C standard doesn't say it is).
-	 */
-	pcap_breakloop(pd);
-#else
-	/*
-	 * We don't have "pcap_breakloop()"; this isn't safe, but
-	 * it's the best we can do.  Print the summary if we're
-	 * not reading from a savefile - i.e., if we're doing a
-	 * live capture - and exit.
-	 */
-	if (pd != NULL && pcap_file(pd) == NULL) {
-		/*
-		 * We got interrupted, so perhaps we didn't
-		 * manage to finish a line we were printing.
-		 * Print an extra newline, just in case.
-		 */
-		putchar('\n');
-		(void)fflush(stdout);
-		info(1);
-	}
-	exit(0);
-#endif
-}
-
-static void
-info(register int verbose)
-{
-	struct pcap_stat stat;
-
-	if (pcap_stats(pd, &stat) < 0) {
-		(void)fprintf(stderr, "pcap_stats: %s\n", pcap_geterr(pd));
-		return;
-	}
-
-	if (!verbose)
-		fprintf(stderr, "%s: ", program_name);
-
-	(void)fprintf(stderr, "%u packets captured", packets_captured);
-	if (!verbose)
-		fputs(", ", stderr);
-	else
-		putc('\n', stderr);
-	(void)fprintf(stderr, "%d packets received by filter", stat.ps_recv);
-	if (!verbose)
-		fputs(", ", stderr);
-	else
-		putc('\n', stderr);
-	(void)fprintf(stderr, "%d packets dropped by kernel\n", stat.ps_drop);
-	infoprint = 0;
-}
-
-static void
-dump_packet_and_trunc(u_char *user, const struct pcap_pkthdr *h, const u_char *sp)
-{
-	struct dump_info *dump_info;
-	char *name;
-
-	++packets_captured;
-
-	++infodelay;
-
-	dump_info = (struct dump_info *)user;
-
-	/*
-	 * XXX - this won't prevent capture files from getting
-	 * larger than Cflag - the last packet written to the
-	 * file could put it over Cflag.
-	 */
-	if (pcap_dump_ftell(dump_info->p) > Cflag) {
-		/*
-		 * Close the current file and open a new one.
-		 */
-		pcap_dump_close(dump_info->p);
-		Cflag_count++;
-		if (Wflag > 0) {
-			if (Cflag_count >= Wflag)
-				Cflag_count = 0;
-		} else {
-			if (Cflag_count >= MAX_CFLAG)
-				error("too many output files");
-		}
-		name = (char *)malloc(strlen(dump_info->WFileName) + MAX_CFLAG_CHARS + 1);
-		if (name == NULL)
-			error("dump_packet_and_trunc: malloc");
-		MakeFilename(name, dump_info->WFileName, Cflag_count, WflagChars);
-		dump_info->p = pcap_dump_open(dump_info->pd, name);
-		free(name);
-		if (dump_info->p == NULL)
-			error("%s", pcap_geterr(pd));
-	}
-
-	pcap_dump((u_char *)dump_info->p, h, sp);
-#ifdef HAVE_PCAP_DUMP_FLUSH
-	if (Uflag)
-		pcap_dump_flush(dump_info->p);
-#endif
-
-	--infodelay;
-	if (infoprint)
-		info(0);
-}
-
-static void
-dump_packet(u_char *user, const struct pcap_pkthdr *h, const u_char *sp)
-{
-	++packets_captured;
-
-	++infodelay;
-
-	pcap_dump(user, h, sp);
-#ifdef HAVE_PCAP_DUMP_FLUSH
-	if (Uflag)
-		pcap_dump_flush((pcap_dumper_t *)user);
-#endif
-
-	--infodelay;
-	if (infoprint)
-		info(0);
-}
-
-static void
-print_packet(u_char *user, const struct pcap_pkthdr *h, const u_char *sp)
-{
-	struct print_info *print_info;
-	u_int hdrlen;
-
-	++packets_captured;
-
-	++infodelay;
-	ts_print(&h->ts);
-
-	print_info = (struct print_info *)user;
-
-	/*
-	 * Some printers want to check that they're not walking off the
-	 * end of the packet.
-	 * Rather than pass it all the way down, we set this global.
-	 */
-	snapend = sp + h->caplen;
-
-	hdrlen = (*print_info->printer)(h, sp);
-	if (Xflag) {
-		/*
-		 * Print the raw packet data in hex and ASCII.
-		 */
-		if (Xflag > 1) {
-			/*
-			 * Include the link-layer header.
-			 */
-			hex_and_ascii_print("\n\t", sp, h->caplen);
-		} else {
-			/*
-			 * Don't include the link-layer header - and if
-			 * we have nothing past the link-layer header,
-			 * print nothing.
-			 */
-			if (h->caplen > hdrlen)
-				hex_and_ascii_print("\n\t", sp + hdrlen,
-				    h->caplen - hdrlen);
-		}
-	} else if (xflag) {
-		/*
-		 * Print the raw packet data in hex.
-		 */
-		if (xflag > 1) {
-			/*
-			 * Include the link-layer header.
-			 */
-			hex_print("\n\t", sp, h->caplen);
-		} else {
-			/*
-			 * Don't include the link-layer header - and if
-			 * we have nothing past the link-layer header,
-			 * print nothing.
-			 */
-			if (h->caplen > hdrlen)
-				hex_print("\n\t", sp + hdrlen,
-				    h->caplen - hdrlen);
-		}
-	} else if (Aflag) {
-		/*
-		 * Print the raw packet data in ASCII.
-		 */
-		if (Aflag > 1) {
-			/*
-			 * Include the link-layer header.
-			 */
-			ascii_print(sp, h->caplen);
-		} else {
-			/*
-			 * Don't include the link-layer header - and if
-			 * we have nothing past the link-layer header,
-			 * print nothing.
-			 */
-			if (h->caplen > hdrlen)
-				ascii_print(sp + hdrlen, h->caplen - hdrlen);
-		}
-	}
-
-	putchar('\n');
-
-	--infodelay;
-	if (infoprint)
-		info(0);
-}
-
-#ifdef WIN32
-	/*
-	 * XXX - there should really be libpcap calls to get the version
-	 * number as a string (the string would be generated from #defines
-	 * at run time, so that it's not generated from string constants
-	 * in the library, as, on many UNIX systems, those constants would
-	 * be statically linked into the application executable image, and
-	 * would thus reflect the version of libpcap on the system on
-	 * which the application was *linked*, not the system on which it's
-	 * *running*.
-	 *
-	 * That routine should be documented, unlike the "version[]"
-	 * string, so that UNIX vendors providing their own libpcaps
-	 * don't omit it (as a couple of vendors have...).
-	 *
-	 * Packet.dll should perhaps also export a routine to return the
-	 * version number of the Packet.dll code, to supply the
-	 * "Wpcap_version" information on Windows.
-	 */
-	char WDversion[]="current-cvs.tcpdump.org";
-#if !defined(HAVE_GENERATED_VERSION)
-	char version[]="current-cvs.tcpdump.org";
-#endif
-	char pcap_version[]="current-cvs.tcpdump.org";
-	char Wpcap_version[]="3.1";
-#endif
-
-/*
- * By default, print the specified data out in hex and ASCII.
- */
-static void
-ndo_default_print(netdissect_options *ndo _U_, const u_char *bp, u_int length)
-{
-	hex_and_ascii_print("\n\t", bp, length); /* pass on lf and identation string */
-}
-
-void
-default_print(const u_char *bp, u_int length)
-{
-	ndo_default_print(gndo, bp, length);
-}
-
-#ifdef SIGINFO
-RETSIGTYPE requestinfo(int signo _U_)
-{
-	if (infodelay)
-		++infoprint;
-	else
-		info(0);
-}
-#endif
-
-/*
- * Called once each second in verbose mode while dumping to file
- */
-#ifdef USE_WIN32_MM_TIMER
-void CALLBACK verbose_stats_dump (UINT timer_id _U_, UINT msg _U_, DWORD_PTR arg _U_,
-                                  DWORD_PTR dw1 _U_, DWORD_PTR dw2 _U_)
-{
-	struct pcap_stat stat;
-
-	if (infodelay == 0 && pcap_stats(pd, &stat) >= 0)
-		fprintf(stderr, "Got %u\r", packets_captured);
-}
-#elif defined(HAVE_ALARM)
-static void verbose_stats_dump(int sig _U_)
-{
-	struct pcap_stat stat;
-
-	if (infodelay == 0 && pcap_stats(pd, &stat) >= 0)
-		fprintf(stderr, "Got %u\r", packets_captured);
-	alarm(1);
-}
-#endif
-
-static void
-usage(void)
-{
-	extern char version[];
-#ifndef HAVE_PCAP_LIB_VERSION
-#if defined(WIN32) || defined(HAVE_PCAP_VERSION)
-	extern char pcap_version[];
-#else /* defined(WIN32) || defined(HAVE_PCAP_VERSION) */
-	static char pcap_version[] = "unknown";
-#endif /* defined(WIN32) || defined(HAVE_PCAP_VERSION) */
-#endif /* HAVE_PCAP_LIB_VERSION */
-
-#ifdef HAVE_PCAP_LIB_VERSION
-#ifdef WIN32
-	(void)fprintf(stderr, "%s version %s, based on tcpdump version %s\n", program_name, WDversion, version);
-#else /* WIN32 */
-	(void)fprintf(stderr, "%s version %s\n", program_name, version);
-#endif /* WIN32 */
-	(void)fprintf(stderr, "%s\n",pcap_lib_version());
-#else /* HAVE_PCAP_LIB_VERSION */
-#ifdef WIN32
-	(void)fprintf(stderr, "%s version %s, based on tcpdump version %s\n", program_name, WDversion, version);
-	(void)fprintf(stderr, "WinPcap version %s, based on libpcap version %s\n",Wpcap_version, pcap_version);
-#else /* WIN32 */
-	(void)fprintf(stderr, "%s version %s\n", program_name, version);
-	(void)fprintf(stderr, "libpcap version %s\n", pcap_version);
-#endif /* WIN32 */
-#endif /* HAVE_PCAP_LIB_VERSION */
-	(void)fprintf(stderr,
-"Usage: %s [-aAd" D_FLAG "eflLnNOpqRStu" U_FLAG "vxX]" B_FLAG_USAGE " [-c count] [ -C file_size ]\n", program_name);
-	(void)fprintf(stderr,
-"\t\t[ -E algo:secret ] [ -F file ] [ -i interface ] [ -M secret ]\n");
-	(void)fprintf(stderr,
-"\t\t[ -r file ] [ -s snaplen ] [ -T type ] [ -w file ]\n");
-	(void)fprintf(stderr,
-"\t\t[ -W filecount ] [ -y datalinktype ] [ -Z user ]\n");
-	(void)fprintf(stderr,
-"\t\t[ expression ]\n");
-	exit(1);
-}
-
-
-
-/* VARARGS */
-static void
-ndo_error(netdissect_options *ndo _U_, const char *fmt, ...)
-{
-	va_list ap;
-
-	(void)fprintf(stderr, "%s: ", program_name);
-	va_start(ap, fmt);
-	(void)vfprintf(stderr, fmt, ap);
-	va_end(ap);
-	if (*fmt) {
-		fmt += strlen(fmt);
-		if (fmt[-1] != '\n')
-			(void)fputc('\n', stderr);
-	}
-	exit(1);
-	/* NOTREACHED */
-}
-
-/* VARARGS */
-static void
-ndo_warning(netdissect_options *ndo _U_, const char *fmt, ...)
-{
-	va_list ap;
-
-	(void)fprintf(stderr, "%s: WARNING: ", program_name);
-	va_start(ap, fmt);
-	(void)vfprintf(stderr, fmt, ap);
-	va_end(ap);
-	if (*fmt) {
-		fmt += strlen(fmt);
-		if (fmt[-1] != '\n')
-			(void)fputc('\n', stderr);
-	}
-}
-