2002-06-25 Roland McGrath <roland@frob.com>

	* ping.c: File removed.

1 files changed, 0 insertions, 1156 deletions

diff --git a/utils/ping.c b/utils/ping.c
deleted file mode 100644
index 2234f44c..00000000
--- a/utils/ping.c
+++ /dev/null
@@ -1,1156 +0,0 @@
-/*
- * Copyright (c) 1989 The Regents of the University of California.
- * All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Mike Muuss.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. 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 BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-char copyright[] =
-  "@(#) Copyright (c) 1989 The Regents of the University of California.\n"
-  "All rights reserved.\n";
-/*
- * From: @(#)ping.c	5.9 (Berkeley) 5/12/91
- */
-char rcsid[] = "$Id: ping.c,v 1.4 2002/05/28 23:56:34 roland Exp $";
-char pkg[] = "netkit-base-0.10";
-
-/*
- *			P I N G . C
- *
- * Using the InterNet Control Message Protocol (ICMP) "ECHO" facility,
- * measure round-trip-delays and packet loss across network paths.
- *
- * Author -
- *	Mike Muuss
- *	U. S. Army Ballistic Research Laboratory
- *	December, 1983
- *
- * Status -
- *	Public Domain.  Distribution Unlimited.
- * Bugs -
- *	More statistics could always be gathered.
- *	This program has to run SUID to ROOT to access the ICMP socket.
- */
-
-#include <sys/param.h>
-#include <sys/socket.h>
-#include <sys/file.h>
-#include <sys/time.h>
-#include <sys/signal.h>
-
-#include <netinet/in.h>
-#include <netinet/ip.h>
-#include <netinet/ip_icmp.h>
-#include <arpa/inet.h>
-#include <netdb.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <string.h>
-#include <stdio.h>
-#include <ctype.h>
-#include <errno.h>
-
-#include <cthreads.h>
-/*
- * Note: on some systems dropping root makes the process dumpable or
- * traceable. In that case if you enable dropping root and someone
- * traces ping, they get control of a raw socket and can start
- * spoofing whatever packets they like. SO BE CAREFUL.
- */
-#ifdef __linux__
-#define SAFE_TO_DROP_ROOT
-#endif
-
-#define	DEFDATALEN	(64 - 8)	/* default data length */
-#define	MAXIPLEN	60
-#define	MAXICMPLEN	76
-#define	MAXPACKET	(65536 - 60 - 8)/* max packet size */
-#define	MAXWAIT		10		/* max seconds to wait for response */
-#define	NROUTES		9		/* number of record route slots */
-
-#define	A(bit)		rcvd_tbl[(bit)>>3]	/* identify byte in array */
-#define	B(bit)		(1 << ((bit) & 0x07))	/* identify bit in byte */
-#define	SET(bit)	(A(bit) |= B(bit))
-#define	CLR(bit)	(A(bit) &= (~B(bit)))
-#define	TST(bit)	(A(bit) & B(bit))
-
-/* various options */
-int options;
-#define	F_FLOOD		0x001
-#define	F_INTERVAL	0x002
-#define	F_NUMERIC	0x004
-#define	F_PINGFILLED	0x008
-#define	F_QUIET		0x010
-#define	F_RROUTE	0x020
-#define	F_SO_DEBUG	0x040
-#define	F_SO_DONTROUTE	0x080
-#define	F_VERBOSE	0x100
-
-/* multicast options */
-int moptions;
-#define MULTICAST_NOLOOP	0x001
-#define MULTICAST_TTL		0x002
-#define MULTICAST_IF		0x004
-
-/*
- * MAX_DUP_CHK is the number of bits in received table, i.e. the maximum
- * number of received sequence numbers we can keep track of.  Change 128
- * to 8192 for complete accuracy...
- */
-#define	MAX_DUP_CHK	(8 * 128)
-int mx_dup_ck = MAX_DUP_CHK;
-char rcvd_tbl[MAX_DUP_CHK / 8];
-
-struct sockaddr whereto;	/* who to ping */
-int datalen = DEFDATALEN;
-int s;				/* socket file descriptor */
-u_char outpack[MAXPACKET];
-char BSPACE = '\b';		/* characters written for flood */
-char DOT = '.';
-static char *hostname;
-static int ident;		/* process id to identify our packets */
-
-/* counters */
-static long npackets;		/* max packets to transmit */
-static long nreceived;		/* # of packets we got back */
-static long nrepeats;		/* number of duplicates */
-static long ntransmitted;	/* sequence # for outbound packets = #sent */
-static int interval = 1;	/* interval between packets */
-
-/* timing */
-static int timing;		/* flag to do timing */
-static long tmin = LONG_MAX;	/* minimum round trip time */
-static long tmax = 0;		/* maximum round trip time */
-static u_long tsum;		/* sum of all times, for doing average */
-
-/* protos */
-static char *pr_addr(u_long);
-static int in_cksum(u_short *addr, int len);
-static void catcher(int);
-static void finish(int ignore);
-static void pinger(void);
-static void fill(void *bp, char *patp);
-static void usage(void);
-static void pr_pack(char *buf, int cc, struct sockaddr_in *from);
-static void tvsub(struct timeval *out, struct timeval *in);
-static void pr_icmph(struct icmp *icp);
-static void pr_retip(struct ip *ip);
-
-/* Only wrapper to call pinger (). */
-void *
-pinger_wrapper (void *ignored)
-{
-  for (;;)
-    {
-      pinger ();
-      sleep (interval);
-    }
-  return 0;
-}
-
-int
-main(int argc, char *argv[])
-{
-	struct timeval timeout;
-	struct hostent *hp;
-	struct sockaddr_in *to;
-	struct protoent *proto;
-	struct in_addr ifaddr;
-	int i;
-	int ch, fdmask, hold, packlen, preload;
-	u_char *datap, *packet;
-	char *target;
-	u_char ttl, loop;
-	int am_i_root;
-#ifdef IP_OPTIONS
-	char rspace[3 + 4 * NROUTES + 1];	/* record route space */
-#endif
-
-	static char *null = NULL;
-	__environ = &null;
-	am_i_root = (getuid()==0);
-
-	cthread_init ();
-
-	/*
-	 * Pull this stuff up front so we can drop root if desired.
-	 */
-	if (!(proto = getprotobyname("icmp"))) {
-		(void)fprintf(stderr, "ping: unknown protocol icmp.\n");
-		exit(2);
-	}
-	if ((s = socket(AF_INET, SOCK_RAW, proto->p_proto)) < 0) {
-		if (errno==EPERM) {
-			fprintf(stderr, "ping: ping must run as root\n");
-		}
-		else perror("ping: socket");
-		exit(2);
-	}
-
-#ifdef SAFE_TO_DROP_ROOT
-	setuid(getuid());
-#endif
-
-	preload = 0;
-	datap = &outpack[8 + sizeof(struct timeval)];
-	while ((ch = getopt(argc, argv, "I:LRc:dfh:i:l:np:qrs:t:v")) != EOF)
-		switch(ch) {
-		case 'c':
-			npackets = atoi(optarg);
-			if (npackets <= 0) {
-				(void)fprintf(stderr,
-				    "ping: bad number of packets to transmit.\n");
-				exit(2);
-			}
-			break;
-		case 'd':
-			options |= F_SO_DEBUG;
-			break;
-		case 'f':
-			if (!am_i_root) {
-				(void)fprintf(stderr,
-				    "ping: %s\n", strerror(EPERM));
-				exit(2);
-			}
-			options |= F_FLOOD;
-			setbuf(stdout, NULL);
-			break;
-		case 'i':		/* wait between sending packets */
-			interval = atoi(optarg);
-			if (interval <= 0) {
-				(void)fprintf(stderr,
-				    "ping: bad timing interval.\n");
-				exit(2);
-			}
-			options |= F_INTERVAL;
-			break;
-		case 'l':
-			if (!am_i_root) {
-				(void)fprintf(stderr,
-				    "ping: %s\n", strerror(EPERM));
-				exit(2);
-			}
-			preload = atoi(optarg);
-			if (preload < 0) {
-				(void)fprintf(stderr,
-				    "ping: bad preload value.\n");
-				exit(2);
-			}
-			break;
-		case 'n':
-			options |= F_NUMERIC;
-			break;
-		case 'p':		/* fill buffer with user pattern */
-			options |= F_PINGFILLED;
-			fill(datap, optarg);
-			break;
-		case 'q':
-			options |= F_QUIET;
-			break;
-		case 'R':
-			options |= F_RROUTE;
-			break;
-		case 'r':
-			options |= F_SO_DONTROUTE;
-			break;
-		case 's':		/* size of packet to send */
-			datalen = atoi(optarg);
-			if (datalen > MAXPACKET) {
-				(void)fprintf(stderr,
-				    "ping: packet size too large.\n");
-				exit(2);
-			}
-			if (datalen <= 0) {
-				(void)fprintf(stderr,
-				    "ping: illegal packet size.\n");
-				exit(2);
-			}
-			break;
-		case 'v':
-			options |= F_VERBOSE;
-			break;
-		case 'L':
-			moptions |= MULTICAST_NOLOOP;
-			loop = 0;
-			break;
-		case 't':
-			moptions |= MULTICAST_TTL;
-			i = atoi(optarg);
-			if (i < 0 || i > 255) {
-				printf("ttl %u out of range\n", i);
-				exit(2);
-			}
-			ttl = i;
-			break;
-		case 'I':
-			moptions |= MULTICAST_IF;
-			{
-				int i1, i2, i3, i4;
-				char junk;
-
-				if (sscanf(optarg, "%u.%u.%u.%u%c",
-					   &i1, &i2, &i3, &i4, &junk) != 4) {
-					printf("bad interface address '%s'\n",
-					       optarg);
-					exit(2);
-				}
-				ifaddr.s_addr = (i1<<24)|(i2<<16)|(i3<<8)|i4;
-				ifaddr.s_addr = htonl(ifaddr.s_addr);
-			}
-			break;
-		default:
-			usage();
-		}
-	argc -= optind;
-	argv += optind;
-
-	if (argc != 1)
-		usage();
-	target = *argv;
-
-	memset(&whereto, 0, sizeof(struct sockaddr));
-	to = (struct sockaddr_in *)&whereto;
-	to->sin_family = AF_INET;
-	if (inet_aton(target, &to->sin_addr)) {
-		hostname = target;
-	}
-	else {
-		hp = gethostbyname(target);
-		if (!hp) {
-			(void)fprintf(stderr,
-			    "ping: unknown host %s\n", target);
-			exit(2);
-		}
-		to->sin_family = hp->h_addrtype;
-		if (hp->h_length > (int)sizeof(to->sin_addr)) {
-			hp->h_length = sizeof(to->sin_addr);
-		}
-		memcpy(&to->sin_addr, hp->h_addr, hp->h_length);
-		hostname = malloc (strlen (hp->h_name) + 1);
-		strcpy (hostname, hp->h_name);
-	}
-
-	if (options & F_FLOOD && options & F_INTERVAL) {
-		(void)fprintf(stderr,
-		    "ping: -f and -i incompatible options.\n");
-		exit(2);
-	}
-
-	if (datalen >= (int)sizeof(struct timeval)) /* can we time transfer */
-		timing = 1;
-	packlen = datalen + MAXIPLEN + MAXICMPLEN;
-	packet = malloc((u_int)packlen);
-	if (!packet) {
-		(void)fprintf(stderr, "ping: out of memory.\n");
-		exit(2);
-	}
-	if (!(options & F_PINGFILLED))
-		for (i = 8; i < datalen; ++i)
-			*datap++ = i;
-
-	ident = getpid() & 0xFFFF;
-	hold = 1;
-
-	if (options & F_SO_DEBUG)
-		(void)setsockopt(s, SOL_SOCKET, SO_DEBUG, (char *)&hold,
-		    sizeof(hold));
-
-	if (options & F_SO_DONTROUTE)
-		(void)setsockopt(s, SOL_SOCKET, SO_DONTROUTE, (char *)&hold,
-		    sizeof(hold));
-
-	/* this is necessary for broadcast pings to work */
-	setsockopt(s, SOL_SOCKET, SO_BROADCAST, (char *)&hold, sizeof(hold));
-
-	/* record route option */
-	if (options & F_RROUTE) {
-#ifdef IP_OPTIONS
-	        memset(rspace, 0, sizeof(rspace));
-		rspace[IPOPT_OPTVAL] = IPOPT_RR;
-		rspace[IPOPT_OLEN] = sizeof(rspace)-1;
-		rspace[IPOPT_OFFSET] = IPOPT_MINOFF;
-		if (setsockopt(s, IPPROTO_IP, IP_OPTIONS, rspace,
-		    sizeof(rspace)) < 0) {
-			perror("ping: record route");
-			exit(2);
-		}
-#else
-		(void)fprintf(stderr,
-		  "ping: record route not available in this implementation.\n");
-		exit(2);
-#endif /* IP_OPTIONS */
-	}
-
-	/*
-	 * When pinging the broadcast address, you can get a lot of answers.
-	 * Doing something so evil is useful if you are trying to stress the
-	 * ethernet, or just want to fill the arp cache to get some stuff for
-	 * /etc/ethers.
-	 */
-	hold = 48 * 1024;
-	(void)setsockopt(s, SOL_SOCKET, SO_RCVBUF, (char *)&hold,
-	    sizeof(hold));
-
-/*#if 0*/
-	if (moptions & MULTICAST_NOLOOP) {
-		if (setsockopt(s, IPPROTO_IP, IP_MULTICAST_LOOP,
-							&loop, 1) == -1) {
-			perror ("can't disable multicast loopback");
-			exit(92);
-		}
-	}
-	if (moptions & MULTICAST_TTL) {
-		if (setsockopt(s, IPPROTO_IP, IP_MULTICAST_TTL,
-							&ttl, 1) == -1) {
-			perror ("can't set multicast time-to-live");
-			exit(93);
-		}
-	}
-	if (moptions & MULTICAST_IF) {
-		if (setsockopt(s, IPPROTO_IP, IP_MULTICAST_IF,
-					&ifaddr, sizeof(ifaddr)) == -1) {
-			perror ("can't set multicast source interface");
-			exit(94);
-		}
-	}
-/*#endif*/
-
-	if (to->sin_family == AF_INET)
-		(void)printf("PING %s (%s): %d data bytes\n", hostname,
-		    inet_ntoa(*(struct in_addr *)&to->sin_addr.s_addr),
-		    datalen);
-	else
-		(void)printf("PING %s: %d data bytes\n", hostname, datalen);
-
-	(void)signal(SIGINT, finish);
-
-	/* I replace this with thread -- Kunihiro
-	(void)signal(SIGALRM, catcher);
-	*/
-
-
-	while (preload--)		/* fire off them quickies */
-		pinger();
-
-	if ((options & F_FLOOD) == 0)
-	  cthread_detach (cthread_fork (pinger_wrapper, NULL));
-
-
-	for (;;) {
-		struct sockaddr_in from;
-		register int cc;
-		socklen_t fromlen;
-
-		if (options & F_FLOOD) {
-			pinger();
-			timeout.tv_sec = 0;
-			timeout.tv_usec = 10000;
-			fdmask = 1 << s;
-			if (select(s + 1, (fd_set *)&fdmask, (fd_set *)NULL,
-			    (fd_set *)NULL, &timeout) < 1)
-				continue;
-		}
-		fromlen = sizeof(from);
-		if ((cc = recvfrom(s, (char *)packet, packlen, 0,
-		    (struct sockaddr *)&from, &fromlen)) < 0) {
-			if (errno == EINTR)
-				continue;
-			perror("ping: recvfrom");
-			continue;
-		}
-		pr_pack((char *)packet, cc, &from);
-		if (npackets && nreceived >= npackets)
-			break;
-	}
-	finish(0);
-	/* NOTREACHED */
-	return 0;
-}
-
-/*
- * catcher --
- *	This routine causes another PING to be transmitted, and then
- * schedules another SIGALRM for 1 second from now.
- *
- * bug --
- *	Our sense of time will slowly skew (i.e., packets will not be
- * launched exactly at 1-second intervals).  This does not affect the
- * quality of the delay and loss statistics.
- */
-static void
-catcher(int ignore)
-{
-	int waittime;
-
-	(void)ignore;
-	pinger();
-	(void)signal(SIGALRM, catcher);
-	if (!npackets || ntransmitted < npackets)
-		alarm((u_int)interval);
-	else {
-		if (nreceived) {
-			waittime = 2 * tmax / 1000;
-			if (!waittime)
-				waittime = 1;
-			if (waittime > MAXWAIT)
-				waittime = MAXWAIT;
-		} else
-			waittime = MAXWAIT;
-		(void)signal(SIGALRM, finish);
-		(void)alarm((u_int)waittime);
-	}
-}
-
-/*
- * pinger --
- * 	Compose and transmit an ICMP ECHO REQUEST packet.  The IP packet
- * will be added on by the kernel.  The ID field is our UNIX process ID,
- * and the sequence number is an ascending integer.  The first 8 bytes
- * of the data portion are used to hold a UNIX "timeval" struct in VAX
- * byte-order, to compute the round-trip time.
- */
-static void
-pinger(void)
-{
-	register struct icmp *icp;
-	register int cc;
-	int i;
-
-	icp = (struct icmp *)outpack;
-	icp->icmp_type = ICMP_ECHO;
-	icp->icmp_code = 0;
-	icp->icmp_cksum = 0;
-	icp->icmp_seq = ntransmitted++;
-	icp->icmp_id = ident;			/* ID */
-
-	CLR(icp->icmp_seq % mx_dup_ck);
-
-	if (timing)
-		(void)gettimeofday((struct timeval *)&outpack[8],
-		    (struct timezone *)NULL);
-
-	cc = datalen + 8;			/* skips ICMP portion */
-
-	/* compute ICMP checksum here */
-	icp->icmp_cksum = in_cksum((u_short *)icp, cc);
-
-	i = sendto(s, (char *)outpack, cc, 0, &whereto,
-	    sizeof(struct sockaddr));
-
-	if (i < 0 || i != cc)  {
-		if (i < 0)
-			perror("ping: sendto");
-		(void)printf("ping: wrote %s %d chars, ret=%d\n",
-		    hostname, cc, i);
-	}
-	if (!(options & F_QUIET) && options & F_FLOOD)
-		(void)write(STDOUT_FILENO, &DOT, 1);
-}
-
-/*
- * pr_pack --
- *	Print out the packet, if it came from us.  This logic is necessary
- * because ALL readers of the ICMP socket get a copy of ALL ICMP packets
- * which arrive ('tis only fair).  This permits multiple copies of this
- * program to be run without having intermingled output (or statistics!).
- */
-void
-pr_pack(char *buf, int cc, struct sockaddr_in *from)
-{
-	register struct icmp *icp;
-	register int i;
-	register u_char *cp,*dp;
-/*#if 0*/
-	register u_long l;
-	register int j;
-	static int old_rrlen;
-	static char old_rr[MAX_IPOPTLEN];
-/*#endif*/
-	struct ip *ip;
-	struct timeval tv, *tp;
-	long triptime = 0;
-	int hlen, dupflag;
-
-	(void)gettimeofday(&tv, (struct timezone *)NULL);
-
-	/* Check the IP header */
-	ip = (struct ip *)buf;
-	hlen = ip->ip_hl << 2;
-	if (cc < datalen + ICMP_MINLEN) {
-		if (options & F_VERBOSE)
-			(void)fprintf(stderr,
-			  "ping: packet too short (%d bytes) from %s\n", cc,
-			  inet_ntoa(*(struct in_addr *)&from->sin_addr.s_addr));
-		return;
-	}
-
-	/* Now the ICMP part */
-	cc -= hlen;
-	icp = (struct icmp *)(buf + hlen);
-	if (icp->icmp_type == ICMP_ECHOREPLY) {
-		if (icp->icmp_id != ident)
-			return;			/* 'Twas not our ECHO */
-		++nreceived;
-		if (timing) {
-#ifndef icmp_data
-			tp = (struct timeval *)(icp + 1);
-#else
-			tp = (struct timeval *)icp->icmp_data;
-#endif
-			tvsub(&tv, tp);
-			triptime = tv.tv_sec * 10000 + (tv.tv_usec / 100);
-			tsum += triptime;
-			if (triptime < tmin)
-				tmin = triptime;
-			if (triptime > tmax)
-				tmax = triptime;
-		}
-
-		if (TST(icp->icmp_seq % mx_dup_ck)) {
-			++nrepeats;
-			--nreceived;
-			dupflag = 1;
-		} else {
-			SET(icp->icmp_seq % mx_dup_ck);
-			dupflag = 0;
-		}
-
-		if (options & F_QUIET)
-			return;
-
-		if (options & F_FLOOD)
-			(void)write(STDOUT_FILENO, &BSPACE, 1);
-		else {
-			(void)printf("%d bytes from %s: icmp_seq=%u", cc,
-			   inet_ntoa(*(struct in_addr *)&from->sin_addr.s_addr),
-			   icp->icmp_seq);
-			(void)printf(" ttl=%d", ip->ip_ttl);
-			if (timing)
-				(void)printf(" time=%ld.%ld ms", triptime/10,
-						triptime%10);
-			if (dupflag)
-				(void)printf(" (DUP!)");
-			/* check the data */
-#ifndef icmp_data
-			cp = ((u_char*)(icp + 1) + 8);
-#else
-			cp = (u_char*)icp->icmp_data + 8;
-#endif
-			dp = &outpack[8 + sizeof(struct timeval)];
-			for (i = 8; i < datalen; ++i, ++cp, ++dp) {
-				if (*cp != *dp) {
-	(void)printf("\nwrong data byte #%d should be 0x%x but was 0x%x",
-	    i, *dp, *cp);
-					cp = (u_char*)(icp + 1);
-					for (i = 8; i < datalen; ++i, ++cp) {
-						if ((i % 32) == 8)
-							(void)printf("\n\t");
-						(void)printf("%x ", *cp);
-					}
-					break;
-				}
-			}
-		}
-	} else {
-		/* We've got something other than an ECHOREPLY */
-		if (!(options & F_VERBOSE))
-			return;
-		(void)printf("%d bytes from %s: ", cc,
-		    pr_addr(from->sin_addr.s_addr));
-		pr_icmph(icp);
-	}
-
-/*#if 0*/
-	/* Display any IP options */
-	cp = (u_char *)buf + sizeof(struct ip);
-
-	for (; hlen > (int)sizeof(struct ip); --hlen, ++cp)
-		switch (*cp) {
-		case IPOPT_EOL:
-			hlen = 0;
-			break;
-		case IPOPT_LSRR:
-			(void)printf("\nLSRR: ");
-			hlen -= 2;
-			j = *++cp;
-			++cp;
-			if (j > IPOPT_MINOFF)
-				for (;;) {
-					l = *++cp;
-					l = (l<<8) + *++cp;
-					l = (l<<8) + *++cp;
-					l = (l<<8) + *++cp;
-					if (l == 0)
-						(void)printf("\t0.0.0.0");
-				else
-					(void)printf("\t%s", pr_addr(ntohl(l)));
-				hlen -= 4;
-				j -= 4;
-				if (j <= IPOPT_MINOFF)
-					break;
-				(void)putchar('\n');
-			}
-			break;
-		case IPOPT_RR:
-			j = *++cp;		/* get length */
-			i = *++cp;		/* and pointer */
-			hlen -= 2;
-			if (i > j)
-				i = j;
-			i -= IPOPT_MINOFF;
-			if (i <= 0)
-				continue;
-			if (i == old_rrlen
-			    && cp == (u_char *)buf + sizeof(struct ip) + 2
-			    && !memcmp((char *)cp, old_rr, i)
-			    && !(options & F_FLOOD)) {
-				(void)printf("\t(same route)");
-				i = ((i + 3) / 4) * 4;
-				hlen -= i;
-				cp += i;
-				break;
-			}
-			old_rrlen = i;
-			memcpy(old_rr, cp, i);
-			(void)printf("\nRR: ");
-			for (;;) {
-				l = *++cp;
-				l = (l<<8) + *++cp;
-				l = (l<<8) + *++cp;
-				l = (l<<8) + *++cp;
-				if (l == 0)
-					(void)printf("\t0.0.0.0");
-				else
-					(void)printf("\t%s", pr_addr(ntohl(l)));
-				hlen -= 4;
-				i -= 4;
-				if (i <= 0)
-					break;
-				(void)putchar('\n');
-			}
-			break;
-		case IPOPT_NOP:
-			(void)printf("\nNOP");
-			break;
-		default:
-			(void)printf("\nunknown option %x", *cp);
-			break;
-		}
-/*#endif*/
-	if (!(options & F_FLOOD)) {
-		(void)putchar('\n');
-		(void)fflush(stdout);
-	}
-}
-
-/*
- * in_cksum --
- *	Checksum routine for Internet Protocol family headers (C Version)
- */
-static int
-in_cksum(u_short *addr, int len)
-{
-	register int nleft = len;
-	register u_short *w = addr;
-	register int sum = 0;
-	u_short answer = 0;
-
-	/*
-	 * Our algorithm is simple, using a 32 bit accumulator (sum), we add
-	 * sequential 16 bit words to it, and at the end, fold back all the
-	 * carry bits from the top 16 bits into the lower 16 bits.
-	 */
-	while (nleft > 1)  {
-		sum += *w++;
-		nleft -= 2;
-	}
-
-	/* mop up an odd byte, if necessary */
-	if (nleft == 1) {
-		*(u_char *)(&answer) = *(u_char *)w ;
-		sum += answer;
-	}
-
-	/* add back carry outs from top 16 bits to low 16 bits */
-	sum = (sum >> 16) + (sum & 0xffff);	/* add hi 16 to low 16 */
-	sum += (sum >> 16);			/* add carry */
-	answer = ~sum;				/* truncate to 16 bits */
-	return(answer);
-}
-
-/*
- * tvsub --
- *	Subtract 2 timeval structs:  out = out - in.  Out is assumed to
- * be >= in.
- */
-static void
-tvsub(register struct timeval *out, register struct timeval *in)
-{
-	if ((out->tv_usec -= in->tv_usec) < 0) {
-		--out->tv_sec;
-		out->tv_usec += 1000000;
-	}
-	out->tv_sec -= in->tv_sec;
-}
-
-/*
- * finish --
- *	Print out statistics, and give up.
- */
-static void
-finish(int ignore)
-{
-	(void)ignore;
-
-	(void)signal(SIGINT, SIG_IGN);
-	(void)putchar('\n');
-	(void)fflush(stdout);
-	(void)printf("--- %s ping statistics ---\n", hostname);
-	(void)printf("%ld packets transmitted, ", ntransmitted);
-	(void)printf("%ld packets received, ", nreceived);
-	if (nrepeats)
-		(void)printf("+%ld duplicates, ", nrepeats);
-	if (ntransmitted)
-		if (nreceived > ntransmitted)
-			(void)printf("-- somebody's printing up packets!");
-		else
-			(void)printf("%d%% packet loss",
-			    (int) (((ntransmitted - nreceived) * 100) /
-			    ntransmitted));
-	(void)putchar('\n');
-	if (nreceived && timing)
-		(void)printf("round-trip min/avg/max = %ld.%ld/%lu.%ld/%ld.%ld ms\n",
-			tmin/10, tmin%10,
-			(tsum / (nreceived + nrepeats))/10,
-			(tsum / (nreceived + nrepeats))%10,
-			tmax/10, tmax%10);
-
-	if (nreceived==0) exit(1);
-	exit(0);
-}
-
-#ifdef notdef
-static char *ttab[] = {
-	"Echo Reply",		/* ip + seq + udata */
-	"Dest Unreachable",	/* net, host, proto, port, frag, sr + IP */
-	"Source Quench",	/* IP */
-	"Redirect",		/* redirect type, gateway, + IP  */
-	"Echo",
-	"Time Exceeded",	/* transit, frag reassem + IP */
-	"Parameter Problem",	/* pointer + IP */
-	"Timestamp",		/* id + seq + three timestamps */
-	"Timestamp Reply",	/* " */
-	"Info Request",		/* id + sq */
-	"Info Reply"		/* " */
-};
-#endif
-
-/*
- * pr_icmph --
- *	Print a descriptive string about an ICMP header.
- */
-static void
-pr_icmph(struct icmp *icp)
-{
-	switch(icp->icmp_type) {
-	case ICMP_ECHOREPLY:
-		(void)printf("Echo Reply\n");
-		/* XXX ID + Seq + Data */
-		break;
-	case ICMP_DEST_UNREACH:
-		switch(icp->icmp_code) {
-		case ICMP_NET_UNREACH:
-			(void)printf("Destination Net Unreachable\n");
-			break;
-		case ICMP_HOST_UNREACH:
-			(void)printf("Destination Host Unreachable\n");
-			break;
-		case ICMP_PROT_UNREACH:
-			(void)printf("Destination Protocol Unreachable\n");
-			break;
-		case ICMP_PORT_UNREACH:
-			(void)printf("Destination Port Unreachable\n");
-			break;
-		case ICMP_FRAG_NEEDED:
-			(void)printf("frag needed and DF set\n");
-			break;
-		case ICMP_SR_FAILED:
-			(void)printf("Source Route Failed\n");
-			break;
-		case ICMP_NET_UNKNOWN:
-			(void)printf("Network Unknown\n");
-			break;
-		case ICMP_HOST_UNKNOWN:
-			(void)printf("Host Unknown\n");
-			break;
-		case ICMP_HOST_ISOLATED:
-			(void)printf("Host Isolated\n");
-			break;
-		case ICMP_NET_UNR_TOS:
-			printf("Destination Network Unreachable At This TOS\n");
-			break;
-		case ICMP_HOST_UNR_TOS:
-			printf("Destination Host Unreachable At This TOS\n");
-			break;
-#ifdef ICMP_PKT_FILTERED
-		case ICMP_PKT_FILTERED:
-			(void)printf("Packet Filtered\n");
-			break;
-#endif
-#ifdef ICMP_PREC_VIOLATION
-		case ICMP_PREC_VIOLATION:
-			(void)printf("Precedence Violation\n");
-			break;
-#endif
-#ifdef ICMP_PREC_CUTOFF
-		case ICMP_PREC_CUTOFF:
-			(void)printf("Precedence Cutoff\n");
-			break;
-#endif
-		default:
-			(void)printf("Dest Unreachable, Unknown Code: %d\n",
-			    icp->icmp_code);
-			break;
-		}
-		/* Print returned IP header information */
-#ifndef icmp_data
-		pr_retip((struct ip *)(icp + 1));
-#else
-		pr_retip((struct ip *)icp->icmp_data);
-#endif
-		break;
-	case ICMP_SOURCE_QUENCH:
-		(void)printf("Source Quench\n");
-#ifndef icmp_data
-		pr_retip((struct ip *)(icp + 1));
-#else
-		pr_retip((struct ip *)icp->icmp_data);
-#endif
-		break;
-	case ICMP_REDIRECT:
-		switch(icp->icmp_code) {
-		case ICMP_REDIR_NET:
-			(void)printf("Redirect Network");
-			break;
-		case ICMP_REDIR_HOST:
-			(void)printf("Redirect Host");
-			break;
-		case ICMP_REDIR_NETTOS:
-			(void)printf("Redirect Type of Service and Network");
-			break;
-		case ICMP_REDIR_HOSTTOS:
-			(void)printf("Redirect Type of Service and Host");
-			break;
-		default:
-			(void)printf("Redirect, Bad Code: %d", icp->icmp_code);
-			break;
-		}
-		(void)printf("(New addr: %s)\n",
-			     inet_ntoa(icp->icmp_gwaddr));
-#ifndef icmp_data
-		pr_retip((struct ip *)(icp + 1));
-#else
-		pr_retip((struct ip *)icp->icmp_data);
-#endif
-		break;
-	case ICMP_ECHO:
-		(void)printf("Echo Request\n");
-		/* XXX ID + Seq + Data */
-		break;
-	case ICMP_TIME_EXCEEDED:
-		switch(icp->icmp_code) {
-		case ICMP_EXC_TTL:
-			(void)printf("Time to live exceeded\n");
-			break;
-		case ICMP_EXC_FRAGTIME:
-			(void)printf("Frag reassembly time exceeded\n");
-			break;
-		default:
-			(void)printf("Time exceeded, Bad Code: %d\n",
-			    icp->icmp_code);
-			break;
-		}
-#ifndef icmp_data
-		pr_retip((struct ip *)(icp + 1));
-#else
-		pr_retip((struct ip *)icp->icmp_data);
-#endif
-		break;
-	case ICMP_PARAMETERPROB:
-		(void)printf("Parameter problem: IP address = %s\n",
-			inet_ntoa (icp->icmp_gwaddr));
-#ifndef icmp_data
-		pr_retip((struct ip *)(icp + 1));
-#else
-		pr_retip((struct ip *)icp->icmp_data);
-#endif
-		break;
-	case ICMP_TIMESTAMP:
-		(void)printf("Timestamp\n");
-		/* XXX ID + Seq + 3 timestamps */
-		break;
-	case ICMP_TIMESTAMPREPLY:
-		(void)printf("Timestamp Reply\n");
-		/* XXX ID + Seq + 3 timestamps */
-		break;
-	case ICMP_INFO_REQUEST:
-		(void)printf("Information Request\n");
-		/* XXX ID + Seq */
-		break;
-	case ICMP_INFO_REPLY:
-		(void)printf("Information Reply\n");
-		/* XXX ID + Seq */
-		break;
-#ifdef ICMP_MASKREQ
-	case ICMP_MASKREQ:
-		(void)printf("Address Mask Request\n");
-		break;
-#endif
-#ifdef ICMP_MASKREPLY
-	case ICMP_MASKREPLY:
-		(void)printf("Address Mask Reply\n");
-		break;
-#endif
-	default:
-		(void)printf("Bad ICMP type: %d\n", icp->icmp_type);
-	}
-}
-
-/*
- * pr_iph --
- *	Print an IP header with options.
- */
-static void
-pr_iph(struct ip *ip)
-{
-	int hlen;
-	u_char *cp;
-
-	hlen = ip->ip_hl << 2;
-	cp = (u_char *)ip + 20;		/* point to options */
-
-	(void)printf("Vr HL TOS  Len   ID Flg  off TTL Pro  cks      Src      Dst Data\n");
-	(void)printf(" %1x  %1x  %02x %04x %04x",
-	    ip->ip_v, ip->ip_hl, ip->ip_tos, ip->ip_len, ip->ip_id);
-	(void)printf("   %1x %04x", ((ip->ip_off) & 0xe000) >> 13,
-	    (ip->ip_off) & 0x1fff);
-	(void)printf("  %02x  %02x %04x", ip->ip_ttl, ip->ip_p, ip->ip_sum);
-	(void)printf(" %s ", inet_ntoa(*((struct in_addr *) &ip->ip_src)));
-	(void)printf(" %s ", inet_ntoa(*((struct in_addr *) &ip->ip_dst)));
-	/* dump and option bytes */
-	while (hlen-- > 20) {
-		(void)printf("%02x", *cp++);
-	}
-	(void)putchar('\n');
-}
-
-/*
- * pr_addr --
- *	Return an ascii host address as a dotted quad and optionally with
- * a hostname.
- */
-static char *
-pr_addr(u_long l)
-{
-	struct hostent *hp;
-	static char buf[256];
-
-	if ((options & F_NUMERIC) ||
-	    !(hp = gethostbyaddr((char *)&l, 4, AF_INET)))
-		(void)snprintf(buf, sizeof(buf), "%s",
-			       inet_ntoa(*(struct in_addr *)&l));
-	else
-		(void)snprintf(buf, sizeof(buf), "%s (%s)", hp->h_name,
-		    inet_ntoa(*(struct in_addr *)&l));
-	return(buf);
-}
-
-/*
- * pr_retip --
- *	Dump some info on a returned (via ICMP) IP packet.
- */
-static void
-pr_retip(struct ip *ip)
-{
-	int hlen;
-	u_char *cp;
-
-	pr_iph(ip);
-	hlen = ip->ip_hl << 2;
-	cp = (u_char *)ip + hlen;
-
-	if (ip->ip_p == 6)
-		(void)printf("TCP: from port %u, to port %u (decimal)\n",
-		    (*cp * 256 + *(cp + 1)), (*(cp + 2) * 256 + *(cp + 3)));
-	else if (ip->ip_p == 17)
-		(void)printf("UDP: from port %u, to port %u (decimal)\n",
-			(*cp * 256 + *(cp + 1)), (*(cp + 2) * 256 + *(cp + 3)));
-}
-
-static void
-fill(void *bp1, char *patp)
-{
-	register int ii, jj, kk;
-	int pat[16];
-	char *cp, *bp = (char *)bp1;
-
-	for (cp = patp; *cp; cp++)
-		if (!isxdigit(*cp)) {
-			(void)fprintf(stderr,
-			    "ping: patterns must be specified as hex digits.\n");
-			exit(2);
-		}
-	ii = sscanf(patp,
-	    "%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x",
-	    &pat[0], &pat[1], &pat[2], &pat[3], &pat[4], &pat[5], &pat[6],
-	    &pat[7], &pat[8], &pat[9], &pat[10], &pat[11], &pat[12],
-	    &pat[13], &pat[14], &pat[15]);
-
-	if (ii > 0)
-		for (kk = 0; kk <= MAXPACKET - (8 + ii); kk += ii)
-			for (jj = 0; jj < ii; ++jj)
-				bp[jj + kk] = pat[jj];
-	if (!(options & F_QUIET)) {
-		(void)printf("PATTERN: 0x");
-		for (jj = 0; jj < ii; ++jj)
-			(void)printf("%02x", bp[jj] & 0xFF);
-		(void)printf("\n");
-	}
-}
-
-static void
-usage(void)
-{
-	(void)fprintf(stderr,
-	    "usage: ping [-LRdfnqrv] [-c count] [-i wait] [-l preload]\n\t[-p pattern] [-s packetsize] [-t ttl] [-I interface address] host\n");
-	exit(2);
-}