... and we have unification.

"Das tritt nach meiner Kenntnis... ist das sofort... unverzueglich..."

3 files changed, 0 insertions, 1847 deletions

diff --git a/sbin/ping6/Makefile b/sbin/ping6/Makefile
deleted file mode 100644
index b3d111012e5..00000000000
--- a/sbin/ping6/Makefile
+++ /dev/null
@@ -1,5 +0,0 @@
-#	$OpenBSD: Makefile,v 1.12 2016/09/17 15:03:39 florian Exp $
-
-MAN=	ping6.8
-
-.include <bsd.prog.mk>
diff --git a/sbin/ping6/ping6.8 b/sbin/ping6/ping6.8
deleted file mode 100644
index 03d49649331..00000000000
--- a/sbin/ping6/ping6.8
+++ /dev/null
@@ -1,345 +0,0 @@
-.\"	$OpenBSD: ping6.8,v 1.64 2016/09/03 16:22:26 akfaew Exp $
-.\"	$KAME: ping6.8,v 1.57 2002/05/26 13:18:25 itojun Exp $
-.\"
-.\" Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
-.\" All rights reserved.
-.\"
-.\" 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. Neither the name of the project 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 PROJECT 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 PROJECT 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.
-.\"
-.Dd $Mdocdate: September 3 2016 $
-.Dt PING6 8
-.Os
-.Sh NAME
-.Nm ping6
-.Nd send ICMPv6 ECHO_REQUEST packets to network hosts
-.Sh SYNOPSIS
-.Nm ping6
-.Op Fl dEefHLmnqv
-.Op Fl c Ar count
-.Op Fl h Ar hoplimit
-.Op Fl I Ar sourceaddr
-.Op Fl i Ar wait
-.Op Fl l Ar preload
-.Op Fl p Ar pattern
-.Op Fl s Ar packetsize
-.Op Fl V Ar rtable
-.Op Fl w Ar maxwait
-.Ar host
-.Sh DESCRIPTION
-.Nm
-uses the
-ICMPv6
-protocol's mandatory
-.Dv ICMP6_ECHO_REQUEST
-datagram to elicit an
-.Dv ICMP6_ECHO_REPLY
-from a host or gateway.
-.Dv ICMP6_ECHO_REQUEST
-datagrams
-.Pq Dq pings
-have an IPv6 header,
-followed by an
-ICMPv6
-header formatted as documented in RFC 4443.
-The options are as follows:
-.Bl -tag -width Ds
-.It Fl c Ar count
-Stop after sending
-.Pq and receiving
-.Ar count
-.Dv ECHO_RESPONSE
-packets.
-If
-.Ar count
-is 0, send an unlimited number of packets.
-.It Fl d
-Set the
-.Dv SO_DEBUG
-option on the socket being used.
-.It Fl E
-Emit an audible beep (by sending an ASCII BEL character to the
-standard error output) when no packet is received before the next
-packet is transmitted.
-To cater for round-trip times that are longer than the interval
-between transmissions, further missing packets cause a bell only
-if the maximum number of unreceived packets has increased.
-This option is disabled for flood pings.
-.It Fl e
-Emit an audible beep (by sending an ASCII BEL character to the
-standard error output) after each non-duplicate response is received.
-This option is disabled for flood pings.
-.It Fl f
-Flood ping.
-Outputs packets as fast as they come back or one hundred times per second,
-whichever is more.
-For every
-.Dv ECHO_REQUEST
-sent a period
-.Pq Sq \&.
-is printed, while for every
-.Dv ECHO_REPLY
-received a backspace is printed.
-This provides a rapid display of how many packets are being dropped.
-Only the super-user may use this option.
-.Bf -emphasis
-This can be very hard on a network and should be used with caution.
-.Ef
-.It Fl H
-Try reverse lookups for addresses.
-.It Fl h Ar hoplimit
-Set the IPv6 hoplimit.
-.It Fl I Ar sourceaddr
-Specifies the source address of request packets.
-The source address must be one of the unicast addresses of the sending node,
-and must be numeric.
-.It Fl i Ar wait
-Wait
-.Ar wait
-seconds
-.Em between sending each packet .
-The default is to wait for one second between each packet.
-This option is incompatible with the
-.Fl f
-option.
-.It Fl L
-Disable the loopback, so the transmitting host doesn't see ICMP
-requests.
-For multicast pings.
-.It Fl l Ar preload
-If
-.Ar preload
-is specified,
-.Nm
-sends that many packets as fast as possible before falling into its normal
-mode of behavior.
-Only the super-user may use this option.
-.It Fl m
-By default,
-.Nm
-asks the kernel to fragment packets to fit into the minimum IPv6 MTU.
-.Fl m
-will suppress the behavior in the following two levels:
-when the option is specified once, the behavior will be disabled for
-unicast packets.
-When the option is specified more than once, it will be disabled for both
-unicast and multicast packets.
-.It Fl n
-Numeric output only.
-No attempt will be made to look up symbolic names from addresses in the reply.
-.It Fl p Ar pattern
-Up to 16
-.Dq pad
-bytes may be specified to fill out the packet sent.
-This is useful for diagnosing data-dependent problems in a network.
-For example,
-.Dq -p ff
-will cause the packet sent to be filled with all
-ones.
-.\" new ipsec
-.\".It Fl P Ar policy
-.\".Ar policy
-.\"specifies IPsec policy to be used for the probe.
-.It Fl q
-Quiet output.
-Nothing is displayed except the summary lines at startup time and
-when finished.
-.\".It Fl R
-.\"Make the kernel believe that the target
-.\".Ar host
-.\".Po
-.\"or the first
-.\".Ar hop
-.\"if you specify
-.\".Ar hops
-.\".Pc
-.\"is reachable, by injecting upper-layer reachability confirmation hint.
-.\"The option is meaningful only if the target
-.\".Ar host
-.\".Pq or the first hop
-.\"is a neighbor.
-.It Fl s Ar packetsize
-Specifies the number of data bytes to be sent.
-The default is 24,
-which translates into 32 ICMP data bytes
-when combined with the 8 bytes of ICMP header data.
-The maximum packet size is 65527.
-.It Fl V Ar rtable
-Set the routing table to be used for outgoing packets.
-.It Fl v
-Verbose output.
-All ICMP packets
-that are received are listed.
-.It Fl w Ar maxwait
-Specifies the maximum number of seconds to wait for responses
-after the last request has been sent.
-The default is 10.
-.El
-.Pp
-When using
-.Nm
-for fault isolation, it should first be run on the local host, to verify
-that the local network interface is up and running.
-Then hosts and gateways further and further away can be
-.Dq pinged .
-Round-trip times and packet loss statistics are computed.
-If duplicate packets are received, they are not included in the packet
-loss calculation, although the round trip time of these packets is used
-in calculating the round-trip time statistics.
-When the specified number of packets have been sent
-.Pq and received
-or if the program is terminated with a
-.Dv SIGINT ,
-a brief summary is displayed, showing the number of packets sent and
-received, and the minimum, maximum, mean, and standard deviation of
-the round-trip times.
-.Pp
-This program is intended for use in network testing, measurement, and
-management.
-Because of the load it can impose on the network, it is unwise to use
-.Nm
-during normal operations or from automated scripts.
-.\" .Sh ICMP PACKET DETAILS
-.\" An IP header without options is 20 bytes.
-.\" An
-.\" .Tn ICMP
-.\" .Tn ECHO_REQUEST
-.\" packet contains an additional 8 bytes worth of
-.\" .Tn ICMP
-.\" header followed by an arbitrary amount of data.
-.\" When a
-.\" .Ar packetsize
-.\" is given, this indicated the size of this extra piece of data
-.\" .Pq the default is 56 .
-.\" Thus the amount of data received inside of an IP packet of type
-.\" .Tn ICMP
-.\" .Tn ECHO_REPLY
-.\" will always be 8 bytes more than the requested data space
-.\" .Pq the Tn ICMP header .
-.\" .Pp
-.\" If the data space is at least eight bytes large,
-.\" .Nm
-.\" uses the first eight bytes of this space to include a timestamp which
-.\" it uses in the computation of round trip times.
-.\" If less than eight bytes of pad are specified, no round trip times are
-.\" given.
-.Sh DUPLICATE AND DAMAGED PACKETS
-.Nm
-will report duplicate and damaged packets.
-Duplicate packets should never occur when pinging a unicast address,
-and seem to be caused by
-inappropriate link-level retransmissions.
-Duplicates may occur in many situations and are rarely
-.Pq if ever
-a good sign, although the presence of low levels of duplicates may not
-always be cause for alarm.
-Duplicates are expected when pinging a broadcast or multicast address,
-since they are not really duplicates but replies from different hosts
-to the same request.
-.Pp
-Damaged packets are obviously serious cause for alarm and often
-indicate broken hardware somewhere in the
-.Nm
-packet's path
-.Pq in the network or in the hosts .
-.Sh TRYING DIFFERENT DATA PATTERNS
-The
-(inter)network
-layer should never treat packets differently depending on the data
-contained in the data portion.
-Unfortunately, data-dependent problems have been known to sneak into
-networks and remain undetected for long periods of time.
-In many cases the particular pattern that will have problems is something
-that does not have sufficient
-.Dq transitions ,
-such as all ones or all zeros, or a pattern right at the edge, such as
-almost all zeros.
-It is not
-necessarily enough to specify a data pattern of all zeros (for example)
-on the command line because the pattern that is of interest is
-at the data link level, and the relationship between what is typed and
-what the controllers transmit can be complicated.
-.Pp
-This means that if there is a data-dependent problem,
-a lot of testing will probably have to be done to find it.
-It may be possible to find a file that either cannot
-be sent across the network or that takes much longer to transfer than
-other similar length files.
-This file can then be examined for repeated patterns that can be tested
-using the
-.Fl p
-option.
-.Sh EXIT STATUS
-.Nm
-exits 0 if at least one reply is received,
-and \*(Gt0 if no reply is received or an error occurred.
-.Sh EXAMPLES
-Normally,
-.Nm
-works just like
-.Xr ping 8
-would work; the following will send ICMPv6 echo requests to dst.foo.com:
-.Bd -literal -offset indent
-$ ping6 -n dst.foo.com
-.Ed
-.Pp
-The following will send ICMPv6 echo requests to the link-local all-node
-multicast address.
-The packet reaches all nodes on the network link attached to the wi0
-interface.
-.Bd -literal -offset indent
-$ ping6 ff02::1%wi0
-.Ed
-.Sh SEE ALSO
-.Xr netstat 1 ,
-.Xr icmp6 4 ,
-.Xr inet6 4 ,
-.Xr ip6 4 ,
-.Xr ifconfig 8 ,
-.Xr ping 8 ,
-.Xr route6d 8 ,
-.Xr traceroute6 8
-.Sh STANDARDS
-.Rs
-.%A A. Conta
-.%A S. Deering
-.%A M. Gupta
-.%D March 2006
-.%R RFC 4443
-.%T "Internet Control Message Protocol (ICMPv6) for the Internet Protocol Version 6 (IPv6) Specification"
-.Re
-.Sh HISTORY
-The
-.Xr ping 8
-command first appeared in
-.Bx 4.3 .
-The
-.Nm
-command with IPv6 support first appeared in the WIDE Hydrangea IPv6
-protocol stack kit.
-.Sh BUGS
-.\" except for bsdi
-.Nm
-is intentionally separate from
-.Xr ping 8 .
diff --git a/sbin/ping6/ping6.c b/sbin/ping6/ping6.c
deleted file mode 100644
index fee3ae70781..00000000000
--- a/sbin/ping6/ping6.c
+++ /dev/null
@@ -1,1497 +0,0 @@
-/*	$OpenBSD: ping6.c,v 1.222 2016/09/17 09:39:09 florian Exp $	*/
-
-/*
- * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
- * All rights reserved.
- *
- * 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. Neither the name of the project 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 PROJECT 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 PROJECT 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.
- */
-
-/*
- * Copyright (c) 1989, 1993
- *	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. 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.
- */
-
-/*
- * 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/types.h>
-#include <sys/socket.h>
-#include <sys/time.h>
-#include <sys/uio.h>
-
-#include <netinet/in.h>
-#include <netinet/ip.h>
-#include <netinet/ip_icmp.h>
-#include <netinet/ip_var.h>
-#include <netinet/ip6.h>
-#include <netinet/icmp6.h>
-#include <netinet/ip_ah.h>
-#include <arpa/inet.h>
-#include <netdb.h>
-
-#include <ctype.h>
-#include <err.h>
-#include <errno.h>
-#include <limits.h>
-#include <math.h>
-#include <poll.h>
-#include <signal.h>
-#include <siphash.h>
-#include <stdint.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <time.h>
-#include <unistd.h>
-
-struct tv64 {
-	u_int64_t	tv64_sec;
-	u_int64_t	tv64_nsec;
-};
-
-struct payload {
-	struct tv64	tv64;
-	u_int8_t	mac[SIPHASH_DIGEST_LENGTH];
-};
-
-#define	ECHOLEN		8	/* icmp echo header len excluding time */
-#define	ECHOTMLEN	sizeof(struct payload)
-#define	DEFDATALEN	(64 - ECHOLEN)		/* default data length */
-#define	IP6LEN		40
-#define	EXTRA		256	/* for AH and various other headers. weird. */
-#define	MAXPAYLOAD6	IPV6_MAXPACKET - IP6LEN - ECHOLEN
-#define	MAXWAIT_DEFAULT	10			/* secs to wait for response */
-
-#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		0x0001
-#define	F_INTERVAL	0x0002
-#define	F_HOSTNAME	0x0004
-#define	F_PINGFILLED	0x0008
-#define	F_QUIET		0x0010
-/*			0x0020 */
-#define	F_SO_DEBUG	0x0040
-/*			0x0080 */
-#define	F_VERBOSE	0x0100
-/*			0x0200 */
-/*			0x0400 */
-/*			0x0800 */
-/*			0x1000 */
-#define	F_AUD_RECV	0x2000
-#define	F_AUD_MISS	0x4000
-
-/* multicast options */
-int moptions;
-#define	MULTICAST_NOLOOP	0x001
-
-#define DUMMY_PORT	10101
-
-/*
- * 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 * 8192)
-int mx_dup_ck = MAX_DUP_CHK;
-char rcvd_tbl[MAX_DUP_CHK / 8];
-
-int datalen = DEFDATALEN;
-int maxpayload;
-u_char outpackhdr[IP_MAXPACKET+sizeof(struct ip)];
-u_char *outpack = outpackhdr+sizeof(struct ip);
-char BSPACE = '\b';		/* characters written for flood */
-char DOT = '.';
-char *hostname;
-int ident;			/* process id to identify our packets */
-
-/* counters */
-int64_t npackets;		/* max packets to transmit */
-int64_t nreceived;		/* # of packets we got back */
-int64_t nrepeats;		/* number of duplicates */
-int64_t ntransmitted;		/* sequence # for outbound packets = #sent */
-int64_t nmissedmax = 1;		/* max value of ntransmitted - nreceived - 1 */
-struct timeval interval = {1, 0}; /* interval between packets */
-
-/* timing */
-int timing = 0;			/* flag to do timing */
-int timinginfo = 0;
-unsigned int maxwait = MAXWAIT_DEFAULT;	/* max seconds to wait for response */
-double tmin = 999999999.0;	/* minimum round trip time */
-double tmax = 0.0;		/* maximum round trip time */
-double tsum = 0.0;		/* sum of all times, for doing average */
-double tsumsq = 0.0;		/* sum of all times squared, for std. dev. */
-
-struct tv64 tv64_offset;
-SIPHASH_KEY mac_key;
-
-struct msghdr smsghdr;
-struct iovec smsgiov;
-
-volatile sig_atomic_t seenalrm;
-volatile sig_atomic_t seenint;
-volatile sig_atomic_t seeninfo;
-
-void			 fill(char *, char *);
-void			 summary(void);
-void			 onsignal(int);
-void			 retransmit(int);
-int			 pinger(int);
-const char		*pr_addr(struct sockaddr *, socklen_t);
-void			 pr_pack(u_char *, int, struct msghdr *);
-__dead void		 usage(void);
-
-int			 get_hoplim(struct msghdr *);
-int			 get_pathmtu(struct msghdr *, struct sockaddr_in6 *);
-void			 pr_icmph6(struct icmp6_hdr *, u_char *);
-void			 pr_iph6(struct ip6_hdr *);
-void			 pr_exthdrs(struct msghdr *);
-void			 pr_ip6opt(void *);
-void			 pr_rthdr(void *);
-void			 pr_retip6(struct ip6_hdr *, u_char *);
-
-int
-main(int argc, char *argv[])
-{
-	struct addrinfo hints, *res;
-	struct itimerval itimer;
-	struct sockaddr *from, *dst;
-	struct sockaddr_in6 from6, dst6;
-	struct cmsghdr *scmsg = NULL;
-	struct in6_pktinfo *pktinfo = NULL;
-	struct icmp6_filter filt;
-	socklen_t maxsizelen;
-	int64_t preload;
-	int ch, i, optval = 1, packlen, maxsize, error, s, hoplimit = -1;
-	int bufspace = IP_MAXPACKET;
-	u_char *datap, *packet, loop = 1;
-	char *e, *target, hbuf[NI_MAXHOST], *source = NULL;
-	const char *errstr;
-	double intval;
-	int mflag = 0;
-	uid_t uid;
-	u_int rtableid = 0;
-
-	if ((s = socket(AF_INET6, SOCK_RAW, IPPROTO_ICMPV6)) < 0)
-		err(1, "socket");
-
-	/* revoke privs */
-	uid = getuid();
-	if (setresuid(uid, uid, uid) == -1)
-		err(1, "setresuid");
-
-	preload = 0;
-	maxpayload = MAXPAYLOAD6;
-	datap = &outpack[ECHOLEN + ECHOTMLEN];
-	while ((ch = getopt(argc, argv,
-	    "c:dEefHh:I:i:Ll:mNnp:qS:s:V:vw:")) != -1) {
-		switch (ch) {
-		case 'c':
-			npackets = strtonum(optarg, 0, INT64_MAX, &errstr);
-			if (errstr)
-				errx(1,
-				    "number of packets to transmit is %s: %s",
-				    errstr, optarg);
-			break;
-		case 'd':
-			options |= F_SO_DEBUG;
-			break;
-		case 'E':
-			options |= F_AUD_MISS;
-			break;
-		case 'e':
-			options |= F_AUD_RECV;
-			break;
-		case 'f':
-			if (getuid())
-				errx(1, "%s", strerror(EPERM));
-			options |= F_FLOOD;
-			setvbuf(stdout, NULL, _IONBF, 0);
-			break;
-		case 'H':
-			options |= F_HOSTNAME;
-			break;
-		case 'h':		/* hoplimit */
-			hoplimit = strtonum(optarg, 0, IPV6_MAXHLIM, &errstr);
-			if (errstr)
-				errx(1, "hoplimit is %s: %s", errstr, optarg);
-			break;
-		case 'I':
-		case 'S':	/* deprecated */
-			source = optarg;
-			break;
-		case 'i':		/* wait between sending packets */
-			intval = strtod(optarg, &e);
-			if (*optarg == '\0' || *e != '\0')
-				errx(1, "illegal timing interval %s", optarg);
-			if (intval < 1 && getuid()) {
-				errx(1, "%s: only root may use interval < 1s",
-				    strerror(EPERM));
-			}
-			interval.tv_sec = (time_t)intval;
-			interval.tv_usec =
-			    (long)((intval - interval.tv_sec) * 1000000);
-			if (interval.tv_sec < 0)
-				errx(1, "illegal timing interval %s", optarg);
-			/* less than 1/Hz does not make sense */
-			if (interval.tv_sec == 0 && interval.tv_usec < 10000) {
-				warnx("too small interval, raised to 0.01");
-				interval.tv_usec = 10000;
-			}
-			options |= F_INTERVAL;
-			break;
-		case 'L':
-			moptions |= MULTICAST_NOLOOP;
-			loop = 0;
-			break;
-		case 'l':
-			if (getuid())
-				errx(1, "%s", strerror(EPERM));
-			preload = strtonum(optarg, 1, INT64_MAX, &errstr);
-			if (errstr)
-				errx(1, "preload value is %s: %s", errstr,
-				    optarg);
-			break;
-		case 'm':
-			mflag++;
-			break;
-		case 'n':
-			options &= ~F_HOSTNAME;
-			break;
-		case 'p':		/* fill buffer with user pattern */
-			options |= F_PINGFILLED;
-			fill((char *)datap, optarg);
-				break;
-		case 'q':
-			options |= F_QUIET;
-			break;
-		case 's':		/* size of packet to send */
-			datalen = strtonum(optarg, 0, maxpayload, &errstr);
-			if (errstr)
-				errx(1, "packet size is %s: %s", errstr,
-				    optarg);
-			break;
-		case 'V':
-			rtableid = strtonum(optarg, 0, RT_TABLEID_MAX, &errstr);
-			if (errstr)
-				errx(1, "rtable value is %s: %s", errstr,
-				    optarg);
-			if (setsockopt(s, SOL_SOCKET, SO_RTABLE, &rtableid,
-			    sizeof(rtableid)) == -1)
-				err(1, "setsockopt SO_RTABLE");
-			break;
-		case 'v':
-			options |= F_VERBOSE;
-			break;
-		case 'w':
-			maxwait = strtonum(optarg, 1, INT_MAX, &errstr);
-			if (errstr)
-				errx(1, "maxwait value is %s: %s",
-				    errstr, optarg);
-			break;
-		default:
-			usage();
-		}
-	}
-
-	argc -= optind;
-	argv += optind;
-
-	if (argc != 1)
-		usage();
-
-	memset(&dst6, 0, sizeof(dst6));
-
-#if 0
-	if (inet_aton(*argv, &dst4.sin_addr) != 0) {
-		hostname = *argv;
-		if ((target = strdup(inet_ntoa(dst4.sin_addr))) == NULL)
-			err(1, "malloc");
-	} else
-#endif
-		target = *argv;
-
-	memset(&hints, 0, sizeof(hints));
-	hints.ai_family = AF_INET6;
-	hints.ai_socktype = SOCK_RAW;
-	hints.ai_protocol = 0;
-	hints.ai_flags = AI_CANONNAME;
-	if ((error = getaddrinfo(target, NULL, &hints, &res)))
-		errx(1, "%s", gai_strerror(error));
-
-	switch (res->ai_family) {
-	case AF_INET6:
-		if (res->ai_addrlen != sizeof(dst6))
-		    errx(1, "size of sockaddr mismatch");
-		dst = (struct sockaddr *)&dst6;
-		from = (struct sockaddr *)&from6;
-		break;
-	case AF_INET:
-	default:
-		errx(1, "unsupported AF: %d", res->ai_family);
-		break;
-	}
-
-	memcpy(dst, res->ai_addr, res->ai_addrlen);
-
-	if (!hostname) {
-		hostname = res->ai_canonname ? strdup(res->ai_canonname) :
-		    target;
-		if (!hostname)
-			err(1, "malloc");
-	}
-
-	if (res->ai_next) {
-		if (getnameinfo(res->ai_addr, res->ai_addrlen, hbuf,
-		    sizeof(hbuf), NULL, 0, NI_NUMERICHOST) != 0)
-			strlcpy(hbuf, "?", sizeof(hbuf));
-		warnx("Warning: %s has multiple "
-		    "addresses; using %s", hostname, hbuf);
-	}
-	freeaddrinfo(res);
-
-	if (source) {
-		memset(&hints, 0, sizeof(hints));
-		hints.ai_family = AF_INET6;
-		if ((error = getaddrinfo(source, NULL, &hints, &res)))
-			errx(1, "%s: %s", source, gai_strerror(error));
-		if (res->ai_family != AF_INET6 || res->ai_addrlen !=
-		    sizeof(from6))
-			errx(1, "invalid source address");
-		memcpy(from, res->ai_addr, res->ai_addrlen);
-		freeaddrinfo(res);
-		if (bind(s, from, from->sa_len) < 0)
-			err(1, "bind");
-	} else if (options & F_VERBOSE) {
-		/*
-		 * get the source address. XXX since we revoked the root
-		 * privilege, we cannot use a raw socket for this.
-		 */
-		int dummy;
-		socklen_t len = dst->sa_len;
-
-		if ((dummy = socket(dst->sa_family, SOCK_DGRAM, 0)) < 0)
-			err(1, "UDP socket");
-
-		memcpy(from, dst, dst->sa_len);
-		from6.sin6_port = ntohs(DUMMY_PORT);
-
-		if (pktinfo &&
-		    setsockopt(dummy, IPPROTO_IPV6, IPV6_PKTINFO,
-		    (void *)pktinfo, sizeof(*pktinfo)))
-			err(1, "UDP setsockopt(IPV6_PKTINFO)");
-
-		if (hoplimit != -1 &&
-		    setsockopt(dummy, IPPROTO_IPV6, IPV6_UNICAST_HOPS,
-		    (void *)&hoplimit, sizeof(hoplimit)))
-			err(1, "UDP setsockopt(IPV6_UNICAST_HOPS)");
-
-		if (hoplimit != -1 &&
-		    setsockopt(dummy, IPPROTO_IPV6, IPV6_MULTICAST_HOPS,
-		    (void *)&hoplimit, sizeof(hoplimit)))
-			err(1, "UDP setsockopt(IPV6_MULTICAST_HOPS)");
-
-		if (rtableid > 0 &&
-		    setsockopt(dummy, SOL_SOCKET, SO_RTABLE, &rtableid,
-		    sizeof(rtableid)) < 0)
-			err(1, "setsockopt(SO_RTABLE)");
-
-		if (connect(dummy, from, len) < 0)
-			err(1, "UDP connect");
-
-		if (getsockname(dummy, from, &len) < 0)
-			err(1, "getsockname");
-
-		close(dummy);
-	}
-
-	if (options & F_SO_DEBUG)
-		(void)setsockopt(s, SOL_SOCKET, SO_DEBUG, &optval,
-		    sizeof(optval));
-
-	if ((options & F_FLOOD) && (options & F_INTERVAL))
-		errx(1, "-f and -i options are incompatible");
-
-	if ((options & F_FLOOD) && (options & (F_AUD_RECV | F_AUD_MISS)))
-		warnx("No audible output for flood pings");
-
-	if (datalen >= sizeof(struct payload))	/* can we time transfer */
-		timing = 1;
-
-	/* in F_VERBOSE case, we may get non-echoreply packets*/
-	if (options & F_VERBOSE && datalen < 2048)
-		packlen = 2048 + IP6LEN + ECHOLEN + EXTRA; /* XXX 2048? */
-	else
-		packlen = datalen + IP6LEN + ECHOLEN + EXTRA;
-
-	if (!(packet = malloc(packlen)))
-		err(1, "malloc");
-
-	if (!(options & F_PINGFILLED))
-		for (i = ECHOTMLEN; i < datalen; ++i)
-			*datap++ = i;
-
-	ident = getpid() & 0xFFFF;
-
-	/*
-	 * When trying to send large packets, you must increase the
-	 * size of both the send and receive buffers...
-	 */
-	maxsizelen = sizeof maxsize;
-	if (getsockopt(s, SOL_SOCKET, SO_SNDBUF, &maxsize, &maxsizelen) < 0)
-		err(1, "getsockopt");
-	if (maxsize < packlen &&
-	    setsockopt(s, SOL_SOCKET, SO_SNDBUF, &packlen, sizeof(maxsize)) < 0)
-		err(1, "setsockopt");
-
-	/*
-	 * 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.
-	 */
-	while (setsockopt(s, SOL_SOCKET, SO_RCVBUF,
-	    (void*)&bufspace, sizeof(bufspace)) < 0) {
-		if ((bufspace -= 1024) <= 0)
-			err(1, "Cannot set the receive buffer size");
-	}
-	if (bufspace < IP_MAXPACKET)
-		warnx("Could only allocate a receive buffer of %d bytes "
-		    "(default %d)", bufspace, IP_MAXPACKET);
-
-	/*
-	 * let the kernel pass extension headers of incoming packets,
-	 * for privileged socket options
-	 */
-	if ((options & F_VERBOSE) != 0) {
-		int opton = 1;
-
-		if (setsockopt(s, IPPROTO_IPV6, IPV6_RECVHOPOPTS, &opton,
-		    (socklen_t)sizeof(opton)))
-			err(1, "setsockopt(IPV6_RECVHOPOPTS)");
-		if (setsockopt(s, IPPROTO_IPV6, IPV6_RECVDSTOPTS, &opton,
-		    (socklen_t)sizeof(opton)))
-			err(1, "setsockopt(IPV6_RECVDSTOPTS)");
-		if (setsockopt(s, IPPROTO_IPV6, IPV6_RECVRTHDR, &opton,
-		    sizeof(opton)))
-			err(1, "setsockopt(IPV6_RECVRTHDR)");
-		ICMP6_FILTER_SETPASSALL(&filt);
-	} else {
-		ICMP6_FILTER_SETBLOCKALL(&filt);
-		ICMP6_FILTER_SETPASS(ICMP6_ECHO_REPLY, &filt);
-	}
-
-	if ((moptions & MULTICAST_NOLOOP) &&
-	    setsockopt(s, IPPROTO_IPV6, IPV6_MULTICAST_LOOP, &loop,
-	    sizeof(loop)) < 0)
-		err(1, "setsockopt IP6_MULTICAST_LOOP");
-
-	optval = IPV6_DEFHLIM;
-	if (IN6_IS_ADDR_MULTICAST(&dst6.sin6_addr))
-		if (setsockopt(s, IPPROTO_IPV6, IPV6_MULTICAST_HOPS,
-		    &optval, (socklen_t)sizeof(optval)) == -1)
-			err(1, "IPV6_MULTICAST_HOPS");
-	if (mflag != 1) {
-		optval = mflag > 1 ? 0 : 1;
-
-		if (setsockopt(s, IPPROTO_IPV6, IPV6_USE_MIN_MTU,
-		    &optval, (socklen_t)sizeof(optval)) == -1)
-			err(1, "setsockopt(IPV6_USE_MIN_MTU)");
-	} else {
-		optval = 1;
-		if (setsockopt(s, IPPROTO_IPV6, IPV6_RECVPATHMTU,
-		    &optval, sizeof(optval)) == -1)
-			err(1, "setsockopt(IPV6_RECVPATHMTU)");
-	}
-
-	if (setsockopt(s, IPPROTO_ICMPV6, ICMP6_FILTER, &filt,
-	    (socklen_t)sizeof(filt)) < 0)
-		err(1, "setsockopt(ICMP6_FILTER)");
-
-	if (hoplimit != -1) {
-		/* set IP6 packet options */
-		if ((scmsg = malloc( CMSG_SPACE(sizeof(int)))) == NULL)
-			err(1, "malloc");
-		smsghdr.msg_control = (caddr_t)scmsg;
-		smsghdr.msg_controllen =  CMSG_SPACE(sizeof(int));
-
-		scmsg->cmsg_len = CMSG_LEN(sizeof(int));
-		scmsg->cmsg_level = IPPROTO_IPV6;
-		scmsg->cmsg_type = IPV6_HOPLIMIT;
-		*(int *)(CMSG_DATA(scmsg)) = hoplimit;
-	}
-
-	optval = 1;
-	if (setsockopt(s, IPPROTO_IPV6, IPV6_RECVPKTINFO, &optval,
-	    (socklen_t)sizeof(optval)) < 0)
-		warn("setsockopt(IPV6_RECVPKTINFO)"); /* XXX err? */
-	if (setsockopt(s, IPPROTO_IPV6, IPV6_RECVHOPLIMIT, &optval,
-	    (socklen_t)sizeof(optval)) < 0)
-		warn("setsockopt(IPV6_RECVHOPLIMIT)"); /* XXX err? */
-
-	if (options & F_HOSTNAME) {
-		if (pledge("stdio inet dns", NULL) == -1)
-			err(1, "pledge");
-	} else {
-		if (pledge("stdio inet", NULL) == -1)
-			err(1, "pledge");
-	}
-
-	arc4random_buf(&tv64_offset, sizeof(tv64_offset));
-	arc4random_buf(&mac_key, sizeof(mac_key));
-
-	printf("PING6 %s (", hostname);
-	if (options & F_VERBOSE)
-		printf("%s --> ", pr_addr(from, from->sa_len));
-	printf("%s): %d data bytes\n", pr_addr(dst, dst->sa_len), datalen);
-
-	smsghdr.msg_name = dst;
-	smsghdr.msg_namelen = dst->sa_len;
-	smsgiov.iov_base = (caddr_t)outpack;
-	smsghdr.msg_iov = &smsgiov;
-	smsghdr.msg_iovlen = 1;
-
-	while (preload--)		/* Fire off them quickies. */
-		pinger(s);
-
-	(void)signal(SIGINT, onsignal);
-	(void)signal(SIGINFO, onsignal);
-
-	if ((options & F_FLOOD) == 0) {
-		(void)signal(SIGALRM, onsignal);
-		itimer.it_interval = interval;
-		itimer.it_value = interval;
-		(void)setitimer(ITIMER_REAL, &itimer, NULL);
-		if (ntransmitted == 0)
-			retransmit(s);
-	}
-
-	seenalrm = seenint = 0;
-	seeninfo = 0;
-
-	for (;;) {
-		struct msghdr		m;
-		union {
-			struct cmsghdr hdr;
-			u_char buf[CMSG_SPACE(1024)];
-		}			cmsgbuf;
-		struct iovec		iov[1];
-		struct pollfd		pfd;
-		struct sockaddr_in6	peer;
-		ssize_t			cc;
-		int			timeout;
-
-		/* signal handling */
-		if (seenint)
-			break;
-		if (seenalrm) {
-			retransmit(s);
-			seenalrm = 0;
-			if (ntransmitted - nreceived - 1 > nmissedmax) {
-				nmissedmax = ntransmitted - nreceived - 1;
-				if (!(options & F_FLOOD) &&
-				    (options & F_AUD_MISS))
-					(void)fputc('\a', stderr);
-			}
-			continue;
-		}
-		if (seeninfo) {
-			summary();
-			seeninfo = 0;
-			continue;
-		}
-
-		if (options & F_FLOOD) {
-			(void)pinger(s);
-			timeout = 10;
-		} else
-			timeout = INFTIM;
-
-		pfd.fd = s;
-		pfd.events = POLLIN;
-
-		if (poll(&pfd, 1, timeout) <= 0)
-			continue;
-
-		m.msg_name = &peer;
-		m.msg_namelen = sizeof(peer);
-		memset(&iov, 0, sizeof(iov));
-		iov[0].iov_base = (caddr_t)packet;
-		iov[0].iov_len = packlen;
-		m.msg_iov = iov;
-		m.msg_iovlen = 1;
-		m.msg_control = (caddr_t)&cmsgbuf.buf;
-		m.msg_controllen = sizeof(cmsgbuf.buf);
-
-		cc = recvmsg(s, &m, 0);
-		if (cc < 0) {
-			if (errno != EINTR) {
-				warn("recvmsg");
-				sleep(1);
-			}
-			continue;
-		} else if (cc == 0) {
-			int mtu;
-
-			/*
-			 * receive control messages only. Process the
-			 * exceptions (currently the only possibility is
-			 * a path MTU notification.)
-			 */
-			if ((mtu = get_pathmtu(&m, &dst6)) > 0) {
-				if ((options & F_VERBOSE) != 0) {
-					printf("new path MTU (%d) is "
-					    "notified\n", mtu);
-				}
-			}
-			continue;
-		} else
-			pr_pack(packet, cc, &m);
-
-		if (npackets && nreceived >= npackets)
-			break;
-	}
-	summary();
-	exit(nreceived == 0);
-}
-
-void
-onsignal(int sig)
-{
-	switch (sig) {
-	case SIGALRM:
-		seenalrm++;
-		break;
-	case SIGINT:
-		seenint++;
-		break;
-	case SIGINFO:
-		seeninfo++;
-		break;
-	}
-}
-
-void
-fill(char *bp, char *patp)
-{
-	int ii, jj, kk;
-	int pat[16];
-	char *cp;
-
-	for (cp = patp; *cp; cp++)
-		if (!isxdigit((unsigned char)*cp))
-			errx(1, "patterns must be specified as hex digits");
-	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 <= maxpayload - (ECHOLEN + ECHOTMLEN + 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");
-	}
-}
-
-void
-summary(void)
-{
-	printf("\n--- %s ping6 statistics ---\n", hostname);
-	printf("%lld packets transmitted, ", ntransmitted);
-	printf("%lld packets received, ", nreceived);
-
-	if (nrepeats)
-		printf("%lld duplicates, ", nrepeats);
-	if (ntransmitted) {
-		if (nreceived > ntransmitted)
-			printf("-- somebody's duplicating packets!");
-		else
-			printf("%.1f%% packet loss",
-			    ((((double)ntransmitted - nreceived) * 100) /
-			    ntransmitted));
-	}
-	printf("\n");
-	if (timinginfo) {
-		/* Only display average to microseconds */
-		double num = nreceived + nrepeats;
-		double avg = tsum / num;
-		double dev = sqrt(fmax(0, tsumsq / num - avg * avg));
-		printf("round-trip min/avg/max/std-dev = %.3f/%.3f/%.3f/%.3f ms\n",
-		    tmin, avg, tmax, dev);
-	}
-}
-
-/*
- * pr_addr --
- *	Return address in numeric form or a host name
- */
-const char *
-pr_addr(struct sockaddr *addr, socklen_t addrlen)
-{
-	static char buf[NI_MAXHOST];
-	int flag = 0;
-
-	if ((options & F_HOSTNAME) == 0)
-		flag |= NI_NUMERICHOST;
-
-	if (getnameinfo(addr, addrlen, buf, sizeof(buf), NULL, 0, flag) == 0)
-		return (buf);
-	else
-		return "?";
-}
-
-/*
- * retransmit --
- *	This routine transmits another ping6.
- */
-void
-retransmit(int s)
-{
-	struct itimerval itimer;
-	static int last_time = 0;
-
-	if (last_time) {
-		seenint = 1;	/* break out of ping event loop */
-		return;
-	}
-
-	if (pinger(s) == 0)
-		return;
-
-	/*
-	 * If we're not transmitting any more packets, change the timer
-	 * to wait two round-trip times if we've received any packets or
-	 * maxwait seconds if we haven't.
-	 */
-	if (nreceived) {
-		itimer.it_value.tv_sec =  2 * tmax / 1000;
-		if (itimer.it_value.tv_sec == 0)
-			itimer.it_value.tv_sec = 1;
-	} else
-		itimer.it_value.tv_sec = maxwait;
-	itimer.it_interval.tv_sec = 0;
-	itimer.it_interval.tv_usec = 0;
-	itimer.it_value.tv_usec = 0;
-	(void)setitimer(ITIMER_REAL, &itimer, NULL);
-
-	/* When the alarm goes off we are done. */
-	last_time = 1;
-}
-
-/*
- * 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.
- */
-int
-pinger(int s)
-{
-	struct icmp6_hdr *icp;
-	int cc, i;
-	u_int16_t seq;
-
-	if (npackets && ntransmitted >= npackets)
-		return(-1);	/* no more transmission */
-
-	seq = htons(ntransmitted++);
-
-	icp = (struct icmp6_hdr *)outpack;
-	memset(icp, 0, sizeof(*icp));
-	icp->icmp6_cksum = 0;
-	icp->icmp6_type = ICMP6_ECHO_REQUEST;
-	icp->icmp6_code = 0;
-	icp->icmp6_id = htons(ident);
-	icp->icmp6_seq = seq;
-
-	CLR(ntohs(seq) % mx_dup_ck);
-
-	if (timing) {
-		SIPHASH_CTX ctx;
-		struct timespec ts;
-		struct payload payload;
-		struct tv64 *tv64 = &payload.tv64;
-
-		if (clock_gettime(CLOCK_MONOTONIC, &ts) == -1)
-			err(1, "clock_gettime(CLOCK_MONOTONIC)");
-		tv64->tv64_sec = htobe64((u_int64_t)ts.tv_sec +
-		    tv64_offset.tv64_sec);
-		tv64->tv64_nsec = htobe64((u_int64_t)ts.tv_nsec +
-		    tv64_offset.tv64_nsec);
-
-		SipHash24_Init(&ctx, &mac_key);
-		SipHash24_Update(&ctx, tv64, sizeof(*tv64));
-		SipHash24_Update(&ctx, &ident, sizeof(ident));
-		SipHash24_Update(&ctx, &seq, sizeof(seq));
-		SipHash24_Final(&payload.mac, &ctx);
-
-		memcpy(&outpack[ECHOLEN], &payload, sizeof(payload));
-	}
-
-	cc = ECHOLEN + datalen;
-
-	smsgiov.iov_len = cc;
-
-	i = sendmsg(s, &smsghdr, 0);
-
-	if (i < 0 || i != cc)  {
-		if (i < 0)
-			warn("sendmsg");
-		printf("ping6: wrote %s %d chars, ret=%d\n", hostname, cc, i);
-	}
-	if (!(options & F_QUIET) && options & F_FLOOD)
-		(void)write(STDOUT_FILENO, &DOT, 1);
-
-	return (0);
-}
-
-/*
- * 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(u_char *buf, int cc, struct msghdr *mhdr)
-{
-	struct icmp6_hdr *icp;
-	struct timespec ts, tp;
-	struct payload payload;
-	struct sockaddr *from;
-	socklen_t fromlen;
-	double triptime = 0;
-	int i, dupflag;
-	int hoplim;
-	u_int16_t seq;
-	u_char *cp = NULL, *dp, *end = buf + cc;
-
-	if (clock_gettime(CLOCK_MONOTONIC, &ts) == -1)
-		err(1, "clock_gettime(CLOCK_MONOTONIC)");
-
-	if (!mhdr || !mhdr->msg_name ||
-	    mhdr->msg_namelen != sizeof(struct sockaddr_in6) ||
-	    ((struct sockaddr *)mhdr->msg_name)->sa_family != AF_INET6) {
-		if (options & F_VERBOSE)
-			warnx("invalid peername");
-		return;
-	}
-	from = (struct sockaddr *)mhdr->msg_name;
-	fromlen = mhdr->msg_namelen;
-	if (cc < sizeof(struct icmp6_hdr)) {
-		if (options & F_VERBOSE)
-			warnx("packet too short (%d bytes) from %s", cc,
-			    pr_addr(from, fromlen));
-		return;
-	}
-	icp = (struct icmp6_hdr *)buf;
-
-	if ((hoplim = get_hoplim(mhdr)) == -1) {
-		warnx("failed to get receiving hop limit");
-		return;
-	}
-
-	if (icp->icmp6_type == ICMP6_ECHO_REPLY) {
-		if (ntohs(icp->icmp6_id) != ident)
-			return;			/* 'Twas not our ECHO */
-		seq = icp->icmp6_seq;
-		++nreceived;
-		if (cc >= ECHOLEN + ECHOTMLEN) {
-			SIPHASH_CTX ctx;
-			struct tv64 *tv64;
-			u_int8_t mac[SIPHASH_DIGEST_LENGTH];
-
-			memcpy(&payload, icp + 1, sizeof(payload));
-			tv64 = &payload.tv64;
-
-			SipHash24_Init(&ctx, &mac_key);
-			SipHash24_Update(&ctx, tv64, sizeof(*tv64));
-			SipHash24_Update(&ctx, &ident, sizeof(ident));
-			SipHash24_Update(&ctx, &seq, sizeof(seq));
-			SipHash24_Final(mac, &ctx);
-
-			if (timingsafe_memcmp(mac, &payload.mac,
-			    sizeof(mac)) != 0) {
-				(void)printf("signature mismatch!\n");
-				return;
-			}
-			timinginfo=1;
-
-			tp.tv_sec = betoh64(tv64->tv64_sec) -
-			    tv64_offset.tv64_sec;
-			tp.tv_nsec = betoh64(tv64->tv64_nsec) -
-			    tv64_offset.tv64_nsec;
-
-			timespecsub(&ts, &tp, &ts);
-			triptime = ((double)ts.tv_sec) * 1000.0 +
-			    ((double)ts.tv_nsec) / 1000000.0;
-			tsum += triptime;
-			tsumsq += triptime * triptime;
-			if (triptime < tmin)
-				tmin = triptime;
-			if (triptime > tmax)
-				tmax = triptime;
-		}
-
-		if (TST(ntohs(seq) % mx_dup_ck)) {
-			++nrepeats;
-			--nreceived;
-			dupflag = 1;
-		} else {
-			SET(ntohs(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,
-			    pr_addr(from, fromlen), ntohs(seq));
-			(void)printf(" hlim=%d", hoplim);
-			if (cc >= ECHOLEN + ECHOTMLEN)
-				(void)printf(" time=%.3f ms", triptime);
-			if (dupflag)
-				(void)printf(" (DUP!)");
-			/* check the data */
-			if (cc - ECHOLEN < datalen)
-				(void)printf(" (TRUNC!)");
-			cp = buf + ECHOLEN + ECHOTMLEN;
-			dp = &outpack[ECHOLEN + ECHOTMLEN];
-			for (i = ECHOLEN + ECHOTMLEN;
-			    i < cc && i < datalen;
-			    ++i, ++cp, ++dp) {
-				if (*cp != *dp) {
-					(void)printf("\nwrong data byte #%d "
-					    "should be 0x%x but was 0x%x",
-					    i - ECHOLEN, *dp, *cp);
-					cp = buf + ECHOLEN;
-					for (i = ECHOLEN; i < cc && 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, fromlen));
-		pr_icmph6(icp, end);
-	}
-
-	if (!(options & F_FLOOD)) {
-		(void)putchar('\n');
-		if (options & F_VERBOSE)
-			pr_exthdrs(mhdr);
-		(void)fflush(stdout);
-		if (options & F_AUD_RECV)
-			(void)fputc('\a', stderr);
-	}
-}
-
-void
-pr_exthdrs(struct msghdr *mhdr)
-{
-	struct cmsghdr *cm;
-
-	for (cm = (struct cmsghdr *)CMSG_FIRSTHDR(mhdr); cm;
-	     cm = (struct cmsghdr *)CMSG_NXTHDR(mhdr, cm)) {
-		if (cm->cmsg_level != IPPROTO_IPV6)
-			continue;
-
-		switch (cm->cmsg_type) {
-		case IPV6_HOPOPTS:
-			printf("  HbH Options: ");
-			pr_ip6opt(CMSG_DATA(cm));
-			break;
-		case IPV6_DSTOPTS:
-		case IPV6_RTHDRDSTOPTS:
-			printf("  Dst Options: ");
-			pr_ip6opt(CMSG_DATA(cm));
-			break;
-		case IPV6_RTHDR:
-			printf("  Routing: ");
-			pr_rthdr(CMSG_DATA(cm));
-			break;
-		}
-	}
-}
-
-void
-pr_ip6opt(void *extbuf)
-{
-	struct ip6_hbh *ext;
-	int currentlen;
-	u_int8_t type;
-	size_t extlen;
-	socklen_t len;
-	void *databuf;
-	u_int16_t value2;
-	u_int32_t value4;
-
-	ext = (struct ip6_hbh *)extbuf;
-	extlen = (ext->ip6h_len + 1) * 8;
-	printf("nxt %u, len %u (%lu bytes)\n", ext->ip6h_nxt,
-	    (unsigned int)ext->ip6h_len, (unsigned long)extlen);
-
-	currentlen = 0;
-	while (1) {
-		currentlen = inet6_opt_next(extbuf, extlen, currentlen,
-		    &type, &len, &databuf);
-		if (currentlen == -1)
-			break;
-		switch (type) {
-		/*
-		 * Note that inet6_opt_next automatically skips any padding
-		 * options.
-		 */
-		case IP6OPT_JUMBO:
-			inet6_opt_get_val(databuf, 0, &value4, sizeof(value4));
-			printf("    Jumbo Payload Opt: Length %u\n",
-			    (u_int32_t)ntohl(value4));
-			break;
-		case IP6OPT_ROUTER_ALERT:
-			inet6_opt_get_val(databuf, 0, &value2, sizeof(value2));
-			printf("    Router Alert Opt: Type %u\n",
-			    ntohs(value2));
-			break;
-		default:
-			printf("    Received Opt %u len %lu\n",
-			    type, (unsigned long)len);
-			break;
-		}
-	}
-	return;
-}
-
-void
-pr_rthdr(void *extbuf)
-{
-	struct in6_addr *in6;
-	char ntopbuf[INET6_ADDRSTRLEN];
-	struct ip6_rthdr *rh = (struct ip6_rthdr *)extbuf;
-	int i, segments;
-
-	/* print fixed part of the header */
-	printf("nxt %u, len %u (%d bytes), type %u, ", rh->ip6r_nxt,
-	    rh->ip6r_len, (rh->ip6r_len + 1) << 3, rh->ip6r_type);
-	if ((segments = inet6_rth_segments(extbuf)) >= 0)
-		printf("%d segments, ", segments);
-	else
-		printf("segments unknown, ");
-	printf("%d left\n", rh->ip6r_segleft);
-
-	for (i = 0; i < segments; i++) {
-		in6 = inet6_rth_getaddr(extbuf, i);
-		if (in6 == NULL)
-			printf("   [%d]<NULL>\n", i);
-		else {
-			if (!inet_ntop(AF_INET6, in6, ntopbuf,
-			    sizeof(ntopbuf)))
-				strncpy(ntopbuf, "?", sizeof(ntopbuf));
-			printf("   [%d]%s\n", i, ntopbuf);
-		}
-	}
-
-	return;
-
-}
-
-int
-get_hoplim(struct msghdr *mhdr)
-{
-	struct cmsghdr *cm;
-
-	for (cm = (struct cmsghdr *)CMSG_FIRSTHDR(mhdr); cm;
-	     cm = (struct cmsghdr *)CMSG_NXTHDR(mhdr, cm)) {
-		if (cm->cmsg_len == 0)
-			return(-1);
-
-		if (cm->cmsg_level == IPPROTO_IPV6 &&
-		    cm->cmsg_type == IPV6_HOPLIMIT &&
-		    cm->cmsg_len == CMSG_LEN(sizeof(int)))
-			return(*(int *)CMSG_DATA(cm));
-	}
-
-	return(-1);
-}
-
-int
-get_pathmtu(struct msghdr *mhdr, struct sockaddr_in6 *dst)
-{
-	struct cmsghdr *cm;
-	struct ip6_mtuinfo *mtuctl = NULL;
-
-	for (cm = (struct cmsghdr *)CMSG_FIRSTHDR(mhdr); cm;
-	     cm = (struct cmsghdr *)CMSG_NXTHDR(mhdr, cm)) {
-		if (cm->cmsg_len == 0)
-			return(0);
-
-		if (cm->cmsg_level == IPPROTO_IPV6 &&
-		    cm->cmsg_type == IPV6_PATHMTU &&
-		    cm->cmsg_len == CMSG_LEN(sizeof(struct ip6_mtuinfo))) {
-			mtuctl = (struct ip6_mtuinfo *)CMSG_DATA(cm);
-
-			/*
-			 * If the notified destination is different from
-			 * the one we are pinging, just ignore the info.
-			 * We check the scope ID only when both notified value
-			 * and our own value have non-0 values, because we may
-			 * have used the default scope zone ID for sending,
-			 * in which case the scope ID value is 0.
-			 */
-			if (!IN6_ARE_ADDR_EQUAL(&mtuctl->ip6m_addr.sin6_addr,
-						&dst->sin6_addr) ||
-			    (mtuctl->ip6m_addr.sin6_scope_id &&
-			     dst->sin6_scope_id &&
-			     mtuctl->ip6m_addr.sin6_scope_id !=
-			     dst->sin6_scope_id)) {
-				if ((options & F_VERBOSE) != 0) {
-					printf("path MTU for %s is notified. "
-					       "(ignored)\n",
-					   pr_addr((struct sockaddr *)&mtuctl->ip6m_addr,
-					   sizeof(mtuctl->ip6m_addr)));
-				}
-				return(0);
-			}
-
-			/*
-			 * Ignore an invalid MTU. XXX: can we just believe
-			 * the kernel check?
-			 */
-			if (mtuctl->ip6m_mtu < IPV6_MMTU)
-				return(0);
-
-			/* notification for our destination. return the MTU. */
-			return((int)mtuctl->ip6m_mtu);
-		}
-	}
-	return(0);
-}
-
-/*
- * pr_icmph6 --
- *	Print a descriptive string about an ICMP header.
- */
-void
-pr_icmph6(struct icmp6_hdr *icp, u_char *end)
-{
-	char ntop_buf[INET6_ADDRSTRLEN];
-	struct nd_redirect *red;
-
-	switch (icp->icmp6_type) {
-	case ICMP6_DST_UNREACH:
-		switch (icp->icmp6_code) {
-		case ICMP6_DST_UNREACH_NOROUTE:
-			(void)printf("No Route to Destination\n");
-			break;
-		case ICMP6_DST_UNREACH_ADMIN:
-			(void)printf("Destination Administratively "
-			    "Unreachable\n");
-			break;
-		case ICMP6_DST_UNREACH_BEYONDSCOPE:
-			(void)printf("Destination Unreachable Beyond Scope\n");
-			break;
-		case ICMP6_DST_UNREACH_ADDR:
-			(void)printf("Destination Host Unreachable\n");
-			break;
-		case ICMP6_DST_UNREACH_NOPORT:
-			(void)printf("Destination Port Unreachable\n");
-			break;
-		default:
-			(void)printf("Destination Unreachable, Bad Code: %d\n",
-			    icp->icmp6_code);
-			break;
-		}
-		/* Print returned IP header information */
-		pr_retip6((struct ip6_hdr *)(icp + 1), end);
-		break;
-	case ICMP6_PACKET_TOO_BIG:
-		(void)printf("Packet too big mtu = %d\n",
-		    (int)ntohl(icp->icmp6_mtu));
-		pr_retip6((struct ip6_hdr *)(icp + 1), end);
-		break;
-	case ICMP6_TIME_EXCEEDED:
-		switch (icp->icmp6_code) {
-		case ICMP6_TIME_EXCEED_TRANSIT:
-			(void)printf("Time to live exceeded\n");
-			break;
-		case ICMP6_TIME_EXCEED_REASSEMBLY:
-			(void)printf("Frag reassembly time exceeded\n");
-			break;
-		default:
-			(void)printf("Time exceeded, Bad Code: %d\n",
-			    icp->icmp6_code);
-			break;
-		}
-		pr_retip6((struct ip6_hdr *)(icp + 1), end);
-		break;
-	case ICMP6_PARAM_PROB:
-		(void)printf("Parameter problem: ");
-		switch (icp->icmp6_code) {
-		case ICMP6_PARAMPROB_HEADER:
-			(void)printf("Erroneous Header ");
-			break;
-		case ICMP6_PARAMPROB_NEXTHEADER:
-			(void)printf("Unknown Nextheader ");
-			break;
-		case ICMP6_PARAMPROB_OPTION:
-			(void)printf("Unrecognized Option ");
-			break;
-		default:
-			(void)printf("Bad code(%d) ", icp->icmp6_code);
-			break;
-		}
-		(void)printf("pointer = 0x%02x\n",
-		    (u_int32_t)ntohl(icp->icmp6_pptr));
-		pr_retip6((struct ip6_hdr *)(icp + 1), end);
-		break;
-	case ICMP6_ECHO_REQUEST:
-		(void)printf("Echo Request");
-		/* XXX ID + Seq + Data */
-		break;
-	case ICMP6_ECHO_REPLY:
-		(void)printf("Echo Reply");
-		/* XXX ID + Seq + Data */
-		break;
-	case ICMP6_MEMBERSHIP_QUERY:
-		(void)printf("Listener Query");
-		break;
-	case ICMP6_MEMBERSHIP_REPORT:
-		(void)printf("Listener Report");
-		break;
-	case ICMP6_MEMBERSHIP_REDUCTION:
-		(void)printf("Listener Done");
-		break;
-	case ND_ROUTER_SOLICIT:
-		(void)printf("Router Solicitation");
-		break;
-	case ND_ROUTER_ADVERT:
-		(void)printf("Router Advertisement");
-		break;
-	case ND_NEIGHBOR_SOLICIT:
-		(void)printf("Neighbor Solicitation");
-		break;
-	case ND_NEIGHBOR_ADVERT:
-		(void)printf("Neighbor Advertisement");
-		break;
-	case ND_REDIRECT:
-		red = (struct nd_redirect *)icp;
-		(void)printf("Redirect\n");
-		if (!inet_ntop(AF_INET6, &red->nd_rd_dst, ntop_buf,
-		    sizeof(ntop_buf)))
-			strncpy(ntop_buf, "?", sizeof(ntop_buf));
-		(void)printf("Destination: %s", ntop_buf);
-		if (!inet_ntop(AF_INET6, &red->nd_rd_target, ntop_buf,
-		    sizeof(ntop_buf)))
-			strncpy(ntop_buf, "?", sizeof(ntop_buf));
-		(void)printf(" New Target: %s", ntop_buf);
-		break;
-	default:
-		(void)printf("Bad ICMP type: %d", icp->icmp6_type);
-	}
-}
-
-/*
- * pr_iph6 --
- *	Print an IP6 header.
- */
-void
-pr_iph6(struct ip6_hdr *ip6)
-{
-	u_int32_t flow = ip6->ip6_flow & IPV6_FLOWLABEL_MASK;
-	u_int8_t tc;
-	char ntop_buf[INET6_ADDRSTRLEN];
-
-	tc = *(&ip6->ip6_vfc + 1); /* XXX */
-	tc = (tc >> 4) & 0x0f;
-	tc |= (ip6->ip6_vfc << 4);
-
-	printf("Vr TC  Flow Plen Nxt Hlim\n");
-	printf(" %1x %02x %05x %04x  %02x   %02x\n",
-	    (ip6->ip6_vfc & IPV6_VERSION_MASK) >> 4, tc, (u_int32_t)ntohl(flow),
-	    ntohs(ip6->ip6_plen), ip6->ip6_nxt, ip6->ip6_hlim);
-	if (!inet_ntop(AF_INET6, &ip6->ip6_src, ntop_buf, sizeof(ntop_buf)))
-		strncpy(ntop_buf, "?", sizeof(ntop_buf));
-	printf("%s->", ntop_buf);
-	if (!inet_ntop(AF_INET6, &ip6->ip6_dst, ntop_buf, sizeof(ntop_buf)))
-		strncpy(ntop_buf, "?", sizeof(ntop_buf));
-	printf("%s\n", ntop_buf);
-}
-
-/*
- * pr_retip6 --
- *	Dump some info on a returned (via ICMPv6) IPv6 packet.
- */
-void
-pr_retip6(struct ip6_hdr *ip6, u_char *end)
-{
-	u_char *cp = (u_char *)ip6, nh;
-	int hlen;
-
-	if (end - (u_char *)ip6 < sizeof(*ip6)) {
-		printf("IP6");
-		goto trunc;
-	}
-	pr_iph6(ip6);
-	hlen = sizeof(*ip6);
-
-	nh = ip6->ip6_nxt;
-	cp += hlen;
-	while (end - cp >= 8) {
-		switch (nh) {
-		case IPPROTO_HOPOPTS:
-			printf("HBH ");
-			hlen = (((struct ip6_hbh *)cp)->ip6h_len+1) << 3;
-			nh = ((struct ip6_hbh *)cp)->ip6h_nxt;
-			break;
-		case IPPROTO_DSTOPTS:
-			printf("DSTOPT ");
-			hlen = (((struct ip6_dest *)cp)->ip6d_len+1) << 3;
-			nh = ((struct ip6_dest *)cp)->ip6d_nxt;
-			break;
-		case IPPROTO_FRAGMENT:
-			printf("FRAG ");
-			hlen = sizeof(struct ip6_frag);
-			nh = ((struct ip6_frag *)cp)->ip6f_nxt;
-			break;
-		case IPPROTO_ROUTING:
-			printf("RTHDR ");
-			hlen = (((struct ip6_rthdr *)cp)->ip6r_len+1) << 3;
-			nh = ((struct ip6_rthdr *)cp)->ip6r_nxt;
-			break;
-		case IPPROTO_AH:
-			printf("AH ");
-			hlen = (((struct ah *)cp)->ah_hl+2) << 2;
-			nh = ((struct ah *)cp)->ah_nh;
-			break;
-		case IPPROTO_ICMPV6:
-			printf("ICMP6: type = %d, code = %d\n",
-			    *cp, *(cp + 1));
-			return;
-		case IPPROTO_ESP:
-			printf("ESP\n");
-			return;
-		case IPPROTO_TCP:
-			printf("TCP: from port %u, to port %u (decimal)\n",
-			    (*cp * 256 + *(cp + 1)),
-			    (*(cp + 2) * 256 + *(cp + 3)));
-			return;
-		case IPPROTO_UDP:
-			printf("UDP: from port %u, to port %u (decimal)\n",
-			    (*cp * 256 + *(cp + 1)),
-			    (*(cp + 2) * 256 + *(cp + 3)));
-			return;
-		default:
-			printf("Unknown Header(%d)\n", nh);
-			return;
-		}
-
-		if ((cp += hlen) >= end)
-			goto trunc;
-	}
-	if (end - cp < 8)
-		goto trunc;
-
-	putchar('\n');
-	return;
-
-  trunc:
-	printf("...\n");
-	return;
-}
-
-__dead void
-usage(void)
-{
-	(void)fprintf(stderr,
-	    "usage: ping6 [-dEefHLmnqv] [-c count] [-h hoplimit] "
-	    "[-I sourceaddr]\n\t[-i wait] [-l preload] [-p pattern] "
-	    "[-s packetsize] [-V rtable]\n\t[-w maxwait] host\n");
-	exit(1);
-}