diff --git a/Android.mk b/Android.mk
deleted file mode 100644
index d20d1c1..0000000
--- a/Android.mk
+++ /dev/null
@@ -1,7 +0,0 @@
-LOCAL_PATH:= $(call my-dir)
-
-include $(CLEAR_VARS)
-LOCAL_SRC_FILES:= ping6.c
-LOCAL_MODULE := ping6
-LOCAL_MODULE_TAGS := debug
-include $(BUILD_EXECUTABLE)
diff --git a/CleanSpec.mk b/CleanSpec.mk
deleted file mode 100644
index b84e1b6..0000000
--- a/CleanSpec.mk
+++ /dev/null
@@ -1,49 +0,0 @@
-# Copyright (C) 2007 The Android Open Source Project
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-
-# If you don't need to do a full clean build but would like to touch
-# a file or delete some intermediate files, add a clean step to the end
-# of the list.  These steps will only be run once, if they haven't been
-# run before.
-#
-# E.g.:
-#     $(call add-clean-step, touch -c external/sqlite/sqlite3.h)
-#     $(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/STATIC_LIBRARIES/libz_intermediates)
-#
-# Always use "touch -c" and "rm -f" or "rm -rf" to gracefully deal with
-# files that are missing or have been moved.
-#
-# Use $(PRODUCT_OUT) to get to the "out/target/product/blah/" directory.
-# Use $(OUT_DIR) to refer to the "out" directory.
-#
-# If you need to re-do something that's already mentioned, just copy
-# the command and add it to the bottom of the list.  E.g., if a change
-# that you made last week required touching a file and a change you
-# made today requires touching the same file, just copy the old
-# touch step and add it to the end of the list.
-#
-# ************************************************
-# NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST
-# ************************************************
-
-# For example:
-#$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/APPS/AndroidTests_intermediates)
-#$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/JAVA_LIBRARIES/core_intermediates)
-#$(call add-clean-step, find $(OUT_DIR) -type f -name "IGTalkSession*" -print0 | xargs -0 rm -f)
-#$(call add-clean-step, rm -rf $(PRODUCT_OUT)/data/*)
-
-# ************************************************
-# NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST
-# ************************************************
diff --git a/NOTICE b/NOTICE
deleted file mode 100644
index 2eff114..0000000
--- a/NOTICE
+++ /dev/null
@@ -1,57 +0,0 @@
-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.
diff --git a/ping6.c b/ping6.c
deleted file mode 100644
index fc1eb84..0000000
--- a/ping6.c
+++ /dev/null
@@ -1,2696 +0,0 @@
-/*	$NetBSD: ping6.c,v 1.73 2010/09/20 11:49:48 ahoka Exp $	*/
-/*	$KAME: ping6.c,v 1.164 2002/11/16 14:05:37 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.
- */
-
-/*	BSDI	ping.c,v 2.3 1996/01/21 17:56:50 jch Exp	*/
-
-/*
- * 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.
- */
-
-#if 0
-#ifndef lint
-static char copyright[] =
-"@(#) Copyright (c) 1989, 1993\n\
-	The Regents of the University of California.  All rights reserved.\n";
-#endif /* not lint */
-
-#ifndef lint
-static char sccsid[] = "@(#)ping.c	8.1 (Berkeley) 6/5/93";
-#endif /* not lint */
-#else
-#include <sys/cdefs.h>
-#ifndef lint
-__RCSID("$NetBSD: ping6.c,v 1.73 2010/09/20 11:49:48 ahoka Exp $");
-#endif
-#endif
-
-/*
- * 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.
- */
-/*
- * NOTE:
- * USE_SIN6_SCOPE_ID assumes that sin6_scope_id has the same semantics
- * as IPV6_PKTINFO.  Some people object it (sin6_scope_id specifies *link*
- * while IPV6_PKTINFO specifies *interface*.  Link is defined as collection of
- * network attached to 1 or more interfaces)
- */
-
-#include <sys/param.h>
-#include <sys/uio.h>
-#include <sys/socket.h>
-#include <sys/time.h>
-
-#include <net/if.h>
-#include <net/route.h>
-
-#include <netinet/in.h>
-#include <netinet/ip6.h>
-#include <netinet/icmp6.h>
-#include <arpa/inet.h>
-#include <arpa/nameser.h>
-#include <netdb.h>
-
-#include <ctype.h>
-#include <err.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <math.h>
-#include <signal.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <poll.h>
-
-#include <private/android_filesystem_config.h>
-
-#ifdef IPSEC
-#include <netinet6/ah.h>
-#include <netinet6/ipsec.h>
-#endif
-
-/*
- * We currently don't have the libc support required for these two features in
- * Android. Should we get enough support later, feel free to remove the #ifdefs
- * altogether.
- */
-#undef ANDROID_INCLUDE_MD5_SUPPORT
-#undef ANDROID_INCLUDE_RTHDR_SUPPORT
-
-#ifdef ANDROID_INCLUDE_MD5_SUPPORT
-#include <md5.h>
-#endif
-
-struct tv32 {
-	u_int32_t tv32_sec;
-	u_int32_t tv32_usec;
-};
-
-#define MAXPACKETLEN	131072
-#define	IP6LEN		40
-#define ICMP6ECHOLEN	8	/* icmp echo header len excluding time */
-#define ICMP6ECHOTMLEN sizeof(struct tv32)
-#define ICMP6_NIQLEN	(ICMP6ECHOLEN + 8)
-/* FQDN case, 64 bits of nonce + 32 bits ttl */
-#define ICMP6_NIRLEN	(ICMP6ECHOLEN + 12)
-#define	EXTRA		256	/* for AH and various other headers. weird. */
-#define	DEFDATALEN	ICMP6ECHOTMLEN
-#define MAXDATALEN	MAXPACKETLEN - IP6LEN - ICMP6ECHOLEN
-#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))
-
-#define	F_FLOOD		0x0001
-#define	F_INTERVAL	0x0002
-#define	F_PINGFILLED	0x0008
-#define	F_QUIET		0x0010
-#define	F_RROUTE	0x0020
-#define	F_SO_DEBUG	0x0040
-#define	F_VERBOSE	0x0100
-#ifdef IPSEC
-#ifdef IPSEC_POLICY_IPSEC
-#define	F_POLICY	0x0400
-#else
-#define F_AUTHHDR	0x0200
-#define F_ENCRYPT	0x0400
-#endif /*IPSEC_POLICY_IPSEC*/
-#endif /*IPSEC*/
-#define F_NODEADDR	0x0800
-#define F_FQDN		0x1000
-#define F_INTERFACE	0x2000
-#define F_SRCADDR	0x4000
-#ifdef IPV6_REACHCONF
-#define F_REACHCONF	0x8000
-#endif
-#define F_HOSTNAME	0x10000
-#define F_FQDNOLD	0x20000
-#define F_NIGROUP	0x40000
-#define F_SUPTYPES	0x80000
-#define F_NOMINMTU	0x100000
-#define F_NOUSERDATA	(F_NODEADDR | F_FQDN | F_FQDNOLD | F_SUPTYPES)
-u_int options;
-
-#define IN6LEN		sizeof(struct in6_addr)
-#define SA6LEN		sizeof(struct sockaddr_in6)
-#define DUMMY_PORT	10101
-
-#define SIN6(s)	((struct sockaddr_in6 *)(s))
-
-/* Android-specific hacks to get this to compile.*/
-#define INFTIM             -1
-#define MAXDNAME           1025
-
-/*
- * 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];
-
-struct addrinfo *res;
-struct sockaddr_in6 dst;	/* who to ping6 */
-struct sockaddr_in6 src;	/* src addr of this packet */
-socklen_t srclen;
-int datalen = DEFDATALEN;
-int s;				/* socket file descriptor */
-u_char outpack[MAXPACKETLEN];
-char BSPACE = '\b';		/* characters written for flood */
-char DOT = '.';
-char *hostname;
-int ident;			/* process id to identify our packets */
-u_int8_t nonce[8];		/* nonce field for node information */
-int hoplimit = -1;		/* hoplimit */
-int pathmtu = 0;		/* path MTU for the destination.  0 = unspec. */
-
-/* counters */
-long npackets;			/* max packets to transmit */
-long nreceived;			/* # of packets we got back */
-long nrepeats;			/* number of duplicates */
-long ntransmitted;		/* sequence # for outbound packets = #sent */
-struct timeval interval = {1, 0}; /* interval between packets */
-
-/* timing */
-int timing;			/* flag to do timing */
-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. */
-
-/* for node addresses */
-u_short naflags;
-
-/* for ancillary data(advanced API) */
-struct msghdr smsghdr;
-struct iovec smsgiov;
-char *scmsg = 0;
-
-volatile sig_atomic_t seenalrm;
-volatile sig_atomic_t seenint;
-#ifdef SIGINFO
-volatile sig_atomic_t seeninfo;
-#endif
-
-void	 fill(char *, char *);
-int	 get_hoplim(struct msghdr *);
-int	 get_pathmtu(struct msghdr *);
-struct in6_pktinfo *get_rcvpktinfo(struct msghdr *);
-void	 onsignal(int);
-void	 retransmit(void);
-void	 onint(int);
-size_t	 pingerlen(void);
-int	 pinger(void);
-const char *pr_addr(struct sockaddr *, int);
-void	 pr_icmph(struct icmp6_hdr *, u_char *);
-void	 pr_iph(struct ip6_hdr *);
-void	 pr_suptypes(struct icmp6_nodeinfo *, size_t);
-void	 pr_nodeaddr(struct icmp6_nodeinfo *, int);
-int	 myechoreply(const struct icmp6_hdr *);
-int	 mynireply(const struct icmp6_nodeinfo *);
-char *dnsdecode(const u_char **, const u_char *, const u_char *,
-	char *, size_t);
-void	 pr_pack(u_char *, int, struct msghdr *);
-void	 pr_exthdrs(struct msghdr *);
-#ifdef ANDROID_INCLUDE_RTHDR_SUPPORT
-void	 pr_ip6opt(void *);
-void	 pr_rthdr(void *);
-#endif
-int	 pr_bitrange(u_int32_t, int, int);
-void	 pr_retip(struct ip6_hdr *, u_char *);
-void	 summary(void);
-void	 tvsub(struct timeval *, struct timeval *);
-int	 setpolicy(int, char *);
-#ifdef ANDROID_INCLUDE_MD5_SUPPORT
-char	*nigroup(char *);
-#endif
-void	 usage(void);
-
-int
-isInSupplementaryGroup(gid_t group)
-{
-	int numgroups, i;
-	gid_t groups[sysconf(_SC_NGROUPS_MAX) + 1];
-	numgroups = getgroups(sizeof(groups) / sizeof(groups[0]), groups);
-	if (numgroups < 0) {
-		perror("getgroups");
-		return 0;
-	}
-	for (i = 0; i < numgroups; i++) {
-		if (group == groups[i])
-			return 1;
-	}
-	return 0;
-}
-
-int
-main(int argc, char *argv[])
-{
-	struct itimerval itimer;
-	struct sockaddr_in6 from;
-	int timeout;
-	struct addrinfo hints;
-	struct pollfd fdmaskp[1];
-	int cc;
-	u_int i, packlen;
-	int ch, hold, preload, optval, ret_ga;
-	u_char *datap, *packet;
-	char *e, *target, *ifname = NULL, *gateway = NULL;
-	int ip6optlen = 0;
-	struct cmsghdr *scmsgp = NULL;
-#if defined(SO_SNDBUF) && defined(SO_RCVBUF)
-	u_long lsockbufsize;
-	int sockbufsize = 0;
-#endif
-	int usepktinfo = 0;
-	struct in6_pktinfo *pktinfo = NULL;
-#ifdef ANDROID_INCLUDE_RTHDR_SUPPORT
-	struct ip6_rthdr *rthdr = NULL;
-#endif
-#ifdef IPSEC_POLICY_IPSEC
-	char *policy_in = NULL;
-	char *policy_out = NULL;
-#endif
-	double intval;
-	size_t rthlen;
-#ifdef IPV6_USE_MIN_MTU
-	int mflag = 0;
-#endif
-
-	if (getuid() != 0 && !isInSupplementaryGroup(AID_INET)) {
-		fprintf(stderr, "%s: not root or in group AID_INET\n", argv[0]);
-		exit(3);
-	}
-
-	/* just to be sure */
-	memset(&smsghdr, 0, sizeof(smsghdr));
-	memset(&smsgiov, 0, sizeof(smsgiov));
-
-	preload = 0;
-	datap = &outpack[ICMP6ECHOLEN + ICMP6ECHOTMLEN];
-#ifndef IPSEC
-#define ADDOPTS
-#else
-#ifdef IPSEC_POLICY_IPSEC
-#define ADDOPTS	"P:"
-#else
-#define ADDOPTS	"AE"
-#endif /*IPSEC_POLICY_IPSEC*/
-#endif
-
-#ifdef ANDROID_INCLUDE_MD5_SUPPORT
-#define ANDROID_MD5_OPTS "N"
-#else
-#define ANDROID_MD5_OPTS ""
-#endif
-	while ((ch = getopt(argc, argv,
-	    "a:b:c:dfHg:h:I:i:l:mnp:qRS:s:tvwW" ADDOPTS ANDROID_MD5_OPTS)) != -1) {
-#undef ADDOPTS
-		switch (ch) {
-		case 'a':
-		{
-			char *cp;
-
-			options &= ~F_NOUSERDATA;
-			options |= F_NODEADDR;
-			for (cp = optarg; *cp != '\0'; cp++) {
-				switch (*cp) {
-				case 'a':
-					naflags |= NI_NODEADDR_FLAG_ALL;
-					break;
-				case 'c':
-				case 'C':
-					naflags |= NI_NODEADDR_FLAG_COMPAT;
-					break;
-				case 'l':
-				case 'L':
-					naflags |= NI_NODEADDR_FLAG_LINKLOCAL;
-					break;
-				case 's':
-				case 'S':
-					naflags |= NI_NODEADDR_FLAG_SITELOCAL;
-					break;
-				case 'g':
-				case 'G':
-					naflags |= NI_NODEADDR_FLAG_GLOBAL;
-					break;
-				case 'A': /* experimental. not in the spec */
-#ifdef NI_NODEADDR_FLAG_ANYCAST
-					naflags |= NI_NODEADDR_FLAG_ANYCAST;
-					break;
-#else
-					errx(1,
-"-a A is not supported on the platform");
-					/*NOTREACHED*/
-#endif
-				default:
-					usage();
-					/*NOTREACHED*/
-				}
-			}
-			break;
-		}
-		case 'b':
-#if defined(SO_SNDBUF) && defined(SO_RCVBUF)
-			errno = 0;
-			e = NULL;
-			lsockbufsize = strtoul(optarg, &e, 10);
-			sockbufsize = lsockbufsize;
-			if (errno || !*optarg || *e ||
-			    (u_long)sockbufsize != lsockbufsize)
-				errx(1, "invalid socket buffer size");
-#else
-			errx(1,
-"-b option ignored: SO_SNDBUF/SO_RCVBUF socket options not supported");
-#endif
-			break;
-		case 'c':
-			npackets = strtol(optarg, &e, 10);
-			if (npackets <= 0 || *optarg == '\0' || *e != '\0')
-				errx(1,
-				    "illegal number of packets -- %s", optarg);
-			break;
-		case 'd':
-			options |= F_SO_DEBUG;
-			break;
-		case 'f':
-			if (getuid()) {
-				errno = EPERM;
-				errx(1, "Must be superuser to flood ping");
-			}
-			options |= F_FLOOD;
-			setbuf(stdout, (char *)NULL);
-			break;
-		case 'g':
-			gateway = optarg;
-			break;
-		case 'H':
-			options |= F_HOSTNAME;
-			break;
-		case 'h':		/* hoplimit */
-			hoplimit = strtol(optarg, &e, 10);
-			if (*optarg == '\0' || *e != '\0')
-				errx(1, "illegal hoplimit %s", optarg);
-			if (255 < hoplimit || hoplimit < -1)
-				errx(1,
-				    "illegal hoplimit -- %s", optarg);
-			break;
-		case 'I':
-			ifname = optarg;
-			options |= F_INTERFACE;
-#ifndef USE_SIN6_SCOPE_ID
-			usepktinfo++;
-#endif
-			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 = (long)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':
-			if (getuid()) {
-				errno = EPERM;
-				errx(1, "Must be superuser to preload");
-			}
-			preload = strtol(optarg, &e, 10);
-			if (preload < 0 || *optarg == '\0' || *e != '\0')
-				errx(1, "illegal preload value -- %s", optarg);
-			break;
-		case 'm':
-#ifdef IPV6_USE_MIN_MTU
-			mflag++;
-			break;
-#else
-			errx(1, "-%c is not supported on this platform", ch);
-			/*NOTREACHED*/
-#endif
-		case 'n':
-			options &= ~F_HOSTNAME;
-			break;
-#ifdef ANDROID_INCLUDE_MD5_SUPPORT
-		case 'N':
-			options |= F_NIGROUP;
-			break;
-#endif
-		case 'p':		/* fill buffer with user pattern */
-			options |= F_PINGFILLED;
-			fill((char *)datap, optarg);
-				break;
-		case 'q':
-			options |= F_QUIET;
-			break;
-		case 'R':
-#ifdef IPV6_REACHCONF
-			options |= F_REACHCONF;
-			break;
-#else
-			errx(1, "-R is not supported in this configuration");
-#endif
-		case 'S':
-			memset(&hints, 0, sizeof(struct addrinfo));
-			hints.ai_flags = AI_NUMERICHOST; /* allow hostname? */
-			hints.ai_family = AF_INET6;
-			hints.ai_socktype = SOCK_RAW;
-			hints.ai_protocol = IPPROTO_ICMPV6;
-
-			ret_ga = getaddrinfo(optarg, NULL, &hints, &res);
-			if (ret_ga) {
-				errx(1, "invalid source address: %s",
-				     gai_strerror(ret_ga));
-			}
-			/*
-			 * res->ai_family must be AF_INET6 and res->ai_addrlen
-			 * must be sizeof(src).
-			 */
-			memcpy(&src, res->ai_addr, res->ai_addrlen);
-			srclen = res->ai_addrlen;
-			freeaddrinfo(res);
-			options |= F_SRCADDR;
-			break;
-		case 's':		/* size of packet to send */
-			datalen = strtol(optarg, &e, 10);
-			if (datalen <= 0 || *optarg == '\0' || *e != '\0')
-				errx(1, "illegal datalen value -- %s", optarg);
-			if (datalen > MAXDATALEN) {
-				errx(1,
-				    "datalen value too large, maximum is %d",
-				    MAXDATALEN);
-			}
-			break;
-		case 't':
-			options &= ~F_NOUSERDATA;
-			options |= F_SUPTYPES;
-			break;
-		case 'v':
-			options |= F_VERBOSE;
-			break;
-		case 'w':
-			options &= ~F_NOUSERDATA;
-			options |= F_FQDN;
-			break;
-		case 'W':
-			options &= ~F_NOUSERDATA;
-			options |= F_FQDNOLD;
-			break;
-#ifdef IPSEC
-#ifdef IPSEC_POLICY_IPSEC
-		case 'P':
-			options |= F_POLICY;
-			if (!strncmp("in", optarg, 2)) {
-				if ((policy_in = strdup(optarg)) == NULL)
-					errx(1, "strdup");
-			} else if (!strncmp("out", optarg, 3)) {
-				if ((policy_out = strdup(optarg)) == NULL)
-					errx(1, "strdup");
-			} else
-				errx(1, "invalid security policy");
-			break;
-#else
-		case 'A':
-			options |= F_AUTHHDR;
-			break;
-		case 'E':
-			options |= F_ENCRYPT;
-			break;
-#endif /*IPSEC_POLICY_IPSEC*/
-#endif /*IPSEC*/
-		default:
-			usage();
-			/*NOTREACHED*/
-		}
-	}
-
-	argc -= optind;
-	argv += optind;
-
-	if (argc < 1) {
-		usage();
-		/*NOTREACHED*/
-	}
-
-	if (argc > 1) {
-#ifdef ANDROID_INCLUDE_RTHDR_SUPPORT
-		rthlen = CMSG_SPACE(inet6_rth_space(IPV6_RTHDR_TYPE_0,
-		    argc - 1));
-		if (rthlen == 0) {
-			errx(1, "too many intermediate hops");
-			/*NOTREACHED*/
-		}
-		ip6optlen += rthlen;
-#else
-		errx(1, "compiled without support for routing headers");
-#endif
-	}
-
-#ifdef ANDROID_INCLUDE_MD5_SUPPORT
-	if (options & F_NIGROUP) {
-		target = nigroup(argv[argc - 1]);
-		if (target == NULL) {
-			usage();
-			/*NOTREACHED*/
-		}
-	} else
-#endif
-		target = argv[argc - 1];
-
-	/* getaddrinfo */
-	memset(&hints, 0, sizeof(struct addrinfo));
-	hints.ai_flags = AI_CANONNAME;
-	hints.ai_family = AF_INET6;
-	hints.ai_socktype = SOCK_RAW;
-	hints.ai_protocol = IPPROTO_ICMPV6;
-
-	ret_ga = getaddrinfo(target, NULL, &hints, &res);
-	if (ret_ga)
-		errx(1, "%s", gai_strerror(ret_ga));
-	if (res->ai_canonname)
-		hostname = res->ai_canonname;
-	else
-		hostname = target;
-
-	if (!res->ai_addr)
-		errx(1, "getaddrinfo failed");
-
-	(void)memcpy(&dst, res->ai_addr, res->ai_addrlen);
-
-	if ((s = socket(res->ai_family, res->ai_socktype,
-	    res->ai_protocol)) < 0)
-		err(1, "socket");
-
-	/* set the source address if specified. */
-	if ((options & F_SRCADDR) &&
-	    bind(s, (struct sockaddr *)&src, srclen) != 0) {
-		err(1, "bind");
-	}
-
-	/* set the gateway (next hop) if specified */
-	if (gateway) {
-		struct addrinfo ghints, *gres;
-		int error;
-
-		memset(&ghints, 0, sizeof(ghints));
-		ghints.ai_family = AF_INET6;
-		ghints.ai_socktype = SOCK_RAW;
-		ghints.ai_protocol = IPPROTO_ICMPV6;
-
-		error = getaddrinfo(gateway, NULL, &hints, &gres);
-		if (error) {
-			errx(1, "getaddrinfo for the gateway %s: %s",
-			     gateway, gai_strerror(error));
-		}
-		if (gres->ai_next && (options & F_VERBOSE))
-			warnx("gateway resolves to multiple addresses");
-
-		if (setsockopt(s, IPPROTO_IPV6, IPV6_NEXTHOP,
-			       gres->ai_addr, gres->ai_addrlen)) {
-			err(1, "setsockopt(IPV6_NEXTHOP)");
-		}
-
-		freeaddrinfo(gres);
-	}
-
-	/*
-	 * let the kerel pass extension headers of incoming packets,
-	 * for privileged socket options
-	 */
-	if ((options & F_VERBOSE) != 0) {
-		int opton = 1;
-
-#ifdef IPV6_RECVHOPOPTS
-		if (setsockopt(s, IPPROTO_IPV6, IPV6_RECVHOPOPTS, &opton,
-		    sizeof(opton)))
-			err(1, "setsockopt(IPV6_RECVHOPOPTS)");
-#else  /* old adv. API */
-		if (setsockopt(s, IPPROTO_IPV6, IPV6_HOPOPTS, &opton,
-		    sizeof(opton)))
-			err(1, "setsockopt(IPV6_HOPOPTS)");
-#endif
-#ifdef IPV6_RECVDSTOPTS
-		if (setsockopt(s, IPPROTO_IPV6, IPV6_RECVDSTOPTS, &opton,
-		    sizeof(opton)))
-			err(1, "setsockopt(IPV6_RECVDSTOPTS)");
-#else  /* old adv. API */
-		if (setsockopt(s, IPPROTO_IPV6, IPV6_DSTOPTS, &opton,
-		    sizeof(opton)))
-			err(1, "setsockopt(IPV6_DSTOPTS)");
-#endif
-#ifdef IPV6_RECVRTHDRDSTOPTS
-		if (setsockopt(s, IPPROTO_IPV6, IPV6_RECVRTHDRDSTOPTS, &opton,
-		    sizeof(opton)))
-			err(1, "setsockopt(IPV6_RECVRTHDRDSTOPTS)");
-#endif
-	}
-
-	/* revoke root privilege */
-	seteuid(getuid());
-	setuid(getuid());
-
-	if ((options & F_FLOOD) && (options & F_INTERVAL))
-		errx(1, "-f and -i incompatible options");
-
-	if ((options & F_NOUSERDATA) == 0) {
-		if (datalen >= (int)sizeof(struct tv32)) {
-			/* we can time transfer */
-			timing = 1;
-		} else
-			timing = 0;
-		/* in F_VERBOSE case, we may get non-echoreply packets*/
-		if (options & F_VERBOSE)
-			packlen = 2048 + IP6LEN + ICMP6ECHOLEN + EXTRA;
-		else
-			packlen = datalen + IP6LEN + ICMP6ECHOLEN + EXTRA;
-	} else {
-		/* suppress timing for node information query */
-		timing = 0;
-		datalen = 2048;
-		packlen = 2048 + IP6LEN + ICMP6ECHOLEN + EXTRA;
-	}
-
-	if (!(packet = (u_char *)malloc(packlen)))
-		err(1, "Unable to allocate packet");
-	if (!(options & F_PINGFILLED))
-		for (i = ICMP6ECHOLEN; i < packlen; ++i)
-			*datap++ = i;
-
-	ident = arc4random() & 0xFFFF;
-	memset(nonce, 0, sizeof(nonce));
-	for (i = 0; i < sizeof(nonce); i += sizeof(u_int32_t))
-		*((u_int32_t *)&nonce[i]) = arc4random();
-
-	hold = 1;
-
-	if (options & F_SO_DEBUG)
-		(void)setsockopt(s, SOL_SOCKET, SO_DEBUG, (char *)&hold,
-		    sizeof(hold));
-	optval = IPV6_DEFHLIM;
-	if (IN6_IS_ADDR_MULTICAST(&dst.sin6_addr))
-		if (setsockopt(s, IPPROTO_IPV6, IPV6_MULTICAST_HOPS,
-		    &optval, sizeof(optval)) == -1)
-			err(1, "IPV6_MULTICAST_HOPS");
-#ifdef IPV6_USE_MIN_MTU
-	if (mflag != 1) {
-		optval = mflag > 1 ? 0 : 1;
-
-		if (setsockopt(s, IPPROTO_IPV6, IPV6_USE_MIN_MTU,
-		    &optval, sizeof(optval)) == -1)
-			err(1, "setsockopt(IPV6_USE_MIN_MTU)");
-	}
-#ifdef IPV6_RECVPATHMTU
-	else {
-		optval = 1;
-		if (setsockopt(s, IPPROTO_IPV6, IPV6_RECVPATHMTU,
-		    &optval, sizeof(optval)) == -1)
-			err(1, "setsockopt(IPV6_RECVPATHMTU)");
-	}
-#endif /* IPV6_RECVPATHMTU */
-#endif /* IPV6_USE_MIN_MTU */
-
-#ifdef IPSEC
-#ifdef IPSEC_POLICY_IPSEC
-	if (options & F_POLICY) {
-		if (setpolicy(s, policy_in) < 0)
-			errx(1, "%s", ipsec_strerror());
-		if (setpolicy(s, policy_out) < 0)
-			errx(1, "%s", ipsec_strerror());
-	}
-#else
-	if (options & F_AUTHHDR) {
-		optval = IPSEC_LEVEL_REQUIRE;
-#ifdef IPV6_AUTH_TRANS_LEVEL
-		if (setsockopt(s, IPPROTO_IPV6, IPV6_AUTH_TRANS_LEVEL,
-		    &optval, sizeof(optval)) == -1)
-			err(1, "setsockopt(IPV6_AUTH_TRANS_LEVEL)");
-#else /* old def */
-		if (setsockopt(s, IPPROTO_IPV6, IPV6_AUTH_LEVEL,
-		    &optval, sizeof(optval)) == -1)
-			err(1, "setsockopt(IPV6_AUTH_LEVEL)");
-#endif
-	}
-	if (options & F_ENCRYPT) {
-		optval = IPSEC_LEVEL_REQUIRE;
-		if (setsockopt(s, IPPROTO_IPV6, IPV6_ESP_TRANS_LEVEL,
-		    &optval, sizeof(optval)) == -1)
-			err(1, "setsockopt(IPV6_ESP_TRANS_LEVEL)");
-	}
-#endif /*IPSEC_POLICY_IPSEC*/
-#endif
-
-#ifdef ICMP6_FILTER
-    {
-	struct icmp6_filter filt;
-	if (!(options & F_VERBOSE)) {
-		ICMP6_FILTER_SETBLOCKALL(&filt);
-		if ((options & F_FQDN) || (options & F_FQDNOLD) ||
-		    (options & F_NODEADDR) || (options & F_SUPTYPES))
-			ICMP6_FILTER_SETPASS(ICMP6_NI_REPLY, &filt);
-		else
-			ICMP6_FILTER_SETPASS(ICMP6_ECHO_REPLY, &filt);
-	} else {
-		ICMP6_FILTER_SETPASSALL(&filt);
-	}
-	if (setsockopt(s, IPPROTO_ICMPV6, ICMP6_FILTER, &filt,
-	    sizeof(filt)) < 0)
-		err(1, "setsockopt(ICMP6_FILTER)");
-    }
-#endif /*ICMP6_FILTER*/
-
-	/* let the kerel pass extension headers of incoming packets */
-	if ((options & F_VERBOSE) != 0) {
-		int opton = 1;
-
-#ifdef IPV6_RECVRTHDR
-		if (setsockopt(s, IPPROTO_IPV6, IPV6_RECVRTHDR, &opton,
-		    sizeof(opton)))
-			err(1, "setsockopt(IPV6_RECVRTHDR)");
-#else  /* old adv. API */
-		if (setsockopt(s, IPPROTO_IPV6, IPV6_RTHDR, &opton,
-		    sizeof(opton)))
-			err(1, "setsockopt(IPV6_RTHDR)");
-#endif
-	}
-
-/*
-	optval = 1;
-	if (IN6_IS_ADDR_MULTICAST(&dst.sin6_addr))
-		if (setsockopt(s, IPPROTO_IPV6, IPV6_MULTICAST_LOOP,
-		    &optval, sizeof(optval)) == -1)
-			err(1, "IPV6_MULTICAST_LOOP");
-*/
-
-	/* Specify the outgoing interface and/or the source address */
-	if (usepktinfo)
-		ip6optlen += CMSG_SPACE(sizeof(struct in6_pktinfo));
-
-	if (hoplimit != -1)
-		ip6optlen += CMSG_SPACE(sizeof(int));
-
-#ifdef IPV6_REACHCONF
-	if (options & F_REACHCONF)
-		ip6optlen += CMSG_SPACE(0);
-#endif
-
-	/* set IP6 packet options */
-	if (ip6optlen) {
-		if ((scmsg = (char *)malloc(ip6optlen)) == 0)
-			errx(1, "can't allocate enough memory");
-		smsghdr.msg_control = (caddr_t)scmsg;
-		smsghdr.msg_controllen = ip6optlen;
-		scmsgp = (struct cmsghdr *)scmsg;
-	}
-	if (usepktinfo) {
-		pktinfo = (struct in6_pktinfo *)(CMSG_DATA(scmsgp));
-		memset(pktinfo, 0, sizeof(*pktinfo));
-		scmsgp->cmsg_len = CMSG_LEN(sizeof(struct in6_pktinfo));
-		scmsgp->cmsg_level = IPPROTO_IPV6;
-		scmsgp->cmsg_type = IPV6_PKTINFO;
-		scmsgp = CMSG_NXTHDR(&smsghdr, scmsgp);
-	}
-
-	/* set the outgoing interface */
-	if (ifname) {
-#ifndef USE_SIN6_SCOPE_ID
-		/* pktinfo must have already been allocated */
-		if ((pktinfo->ipi6_ifindex = if_nametoindex(ifname)) == 0)
-			errx(1, "%s: invalid interface name", ifname);
-#else
-		if ((dst.sin6_scope_id = if_nametoindex(ifname)) == 0)
-			errx(1, "%s: invalid interface name", ifname);
-#endif
-	}
-	if (hoplimit != -1) {
-		scmsgp->cmsg_len = CMSG_LEN(sizeof(int));
-		scmsgp->cmsg_level = IPPROTO_IPV6;
-		scmsgp->cmsg_type = IPV6_HOPLIMIT;
-		*(int *)(CMSG_DATA(scmsgp)) = hoplimit;
-
-		scmsgp = CMSG_NXTHDR(&smsghdr, scmsgp);
-	}
-#ifdef IPV6_REACHCONF
-	if (options & F_REACHCONF) {
-		scmsgp->cmsg_len = CMSG_LEN(0);
-		scmsgp->cmsg_level = IPPROTO_IPV6;
-		scmsgp->cmsg_type = IPV6_REACHCONF;
-
-		scmsgp = CMSG_NXTHDR(&smsghdr, scmsgp);
-	}
-#endif
-
-	if (argc > 1) {	/* some intermediate addrs are specified */
-#ifdef ANDROID_INCLUDE_RTHDR_SUPPORT
-		int hops, error;
-		int rthdrlen;
-
-		rthdrlen = inet6_rth_space(IPV6_RTHDR_TYPE_0, argc - 1);
-		scmsgp->cmsg_len = CMSG_LEN(rthdrlen);
-		scmsgp->cmsg_level = IPPROTO_IPV6;
-		scmsgp->cmsg_type = IPV6_RTHDR;
-		rthdr = (struct ip6_rthdr *)CMSG_DATA(scmsgp);
-		rthdr = inet6_rth_init((void *)rthdr, rthdrlen,
-		    IPV6_RTHDR_TYPE_0, argc - 1);
-		if (rthdr == NULL)
-			errx(1, "can't initialize rthdr");
-
-		for (hops = 0; hops < argc - 1; hops++) {
-			struct addrinfo *iaip;
-
-			if ((error = getaddrinfo(argv[hops], NULL, &hints,
-			    &iaip)))
-				errx(1, "%s", gai_strerror(error));
-			if (SIN6(iaip->ai_addr)->sin6_family != AF_INET6)
-				errx(1,
-				    "bad addr family of an intermediate addr");
-
-			if (inet6_rth_add(rthdr,
-			    &(SIN6(iaip->ai_addr))->sin6_addr))
-				errx(1, "can't add an intermediate node");
-			freeaddrinfo(iaip);
-		}
-
-		scmsgp = CMSG_NXTHDR(&smsghdr, scmsgp);
-#else
-		errx(1, "compiled without support for routing headers");
-#endif
-	}
-
-	if (!(options & F_SRCADDR)) {
-		/*
-		 * get the source address. XXX since we revoked the root
-		 * privilege, we cannot use a raw socket for this.
-		 */
-		int dummy;
-		socklen_t len = sizeof(src);
-
-		if ((dummy = socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
-			err(1, "UDP socket");
-
-		src.sin6_family = AF_INET6;
-		src.sin6_addr = dst.sin6_addr;
-		src.sin6_port = ntohs(DUMMY_PORT);
-		src.sin6_scope_id = dst.sin6_scope_id;
-
-		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)");
-
-#ifdef ANDROID_INCLUDE_RTHDR_SUPPORT
-		if (rthdr &&
-		    setsockopt(dummy, IPPROTO_IPV6, IPV6_RTHDR,
-		    (void *)rthdr, (rthdr->ip6r_len + 1) << 3))
-			err(1, "UDP setsockopt(IPV6_RTHDR)");
-#endif
-
-		if (connect(dummy, (struct sockaddr *)&src, len) < 0)
-			err(1, "UDP connect");
-
-		if (getsockname(dummy, (struct sockaddr *)&src, &len) < 0)
-			err(1, "getsockname");
-
-		close(dummy);
-	}
-
-#if defined(SO_SNDBUF) && defined(SO_RCVBUF)
-	if (sockbufsize) {
-		if (datalen > sockbufsize)
-			warnx("you need -b to increase socket buffer size");
-		if (setsockopt(s, SOL_SOCKET, SO_SNDBUF, &sockbufsize,
-		    sizeof(sockbufsize)) < 0)
-			err(1, "setsockopt(SO_SNDBUF)");
-		if (setsockopt(s, SOL_SOCKET, SO_RCVBUF, &sockbufsize,
-		    sizeof(sockbufsize)) < 0)
-			err(1, "setsockopt(SO_RCVBUF)");
-	}
-	else {
-		if (datalen > 8 * 1024)	/*XXX*/
-			warnx("you need -b to increase socket buffer size");
-		/*
-		 * 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;
-		setsockopt(s, SOL_SOCKET, SO_RCVBUF, (char *)&hold,
-		    sizeof(hold));
-	}
-#endif
-
-	optval = 1;
-#ifndef USE_SIN6_SCOPE_ID
-#ifdef IPV6_RECVPKTINFO
-	if (setsockopt(s, IPPROTO_IPV6, IPV6_RECVPKTINFO, &optval,
-	    sizeof(optval)) < 0)
-		warn("setsockopt(IPV6_RECVPKTINFO)"); /* XXX err? */
-#else  /* old adv. API */
-	if (setsockopt(s, IPPROTO_IPV6, IPV6_PKTINFO, &optval,
-	    sizeof(optval)) < 0)
-		warn("setsockopt(IPV6_PKTINFO)"); /* XXX err? */
-#endif
-#endif /* USE_SIN6_SCOPE_ID */
-#ifdef IPV6_RECVHOPLIMIT
-	if (setsockopt(s, IPPROTO_IPV6, IPV6_RECVHOPLIMIT, &optval,
-	    sizeof(optval)) < 0)
-		warn("setsockopt(IPV6_RECVHOPLIMIT)"); /* XXX err? */
-#else  /* old adv. API */
-	if (setsockopt(s, IPPROTO_IPV6, IPV6_HOPLIMIT, &optval,
-	    sizeof(optval)) < 0)
-		warn("setsockopt(IPV6_HOPLIMIT)"); /* XXX err? */
-#endif
-
-	printf("PING6(%lu=40+8+%lu bytes) ", (unsigned long)(40 + pingerlen()),
-	    (unsigned long)(pingerlen() - 8));
-	printf("%s --> ", pr_addr((struct sockaddr *)&src, sizeof(src)));
-	printf("%s\n", pr_addr((struct sockaddr *)&dst, sizeof(dst)));
-
-	while (preload--)		/* Fire off them quickies. */
-		(void)pinger();
-
-	(void)signal(SIGINT, onsignal);
-#ifdef SIGINFO
-	(void)signal(SIGINFO, onsignal);
-#endif
-
-	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();
-	}
-
-	seenalrm = seenint = 0;
-#ifdef SIGINFO
-	seeninfo = 0;
-#endif
-
-	for (;;) {
-		struct msghdr m;
-		struct cmsghdr *cm;
-		u_char buf[1024];
-		struct iovec iov[2];
-
-		/* signal handling */
-		if (seenalrm) {
-			retransmit();
-			seenalrm = 0;
-			continue;
-		}
-		if (seenint) {
-			onint(SIGINT);
-			seenint = 0;
-			continue;
-		}
-#ifdef SIGINFO
-		if (seeninfo) {
-			summary();
-			seeninfo = 0;
-			continue;
-		}
-#endif
-
-		if (options & F_FLOOD) {
-			(void)pinger();
-			timeout = 10;
-		} else {
-			timeout = INFTIM;
-		}
-		fdmaskp[0].fd = s;
-		fdmaskp[0].events = POLLIN;
-		cc = poll(fdmaskp, 1, timeout);
-		if (cc < 0) {
-			if (errno != EINTR) {
-				warn("poll");
-				sleep(1);
-			}
-			continue;
-		} else if (cc == 0)
-			continue;
-
-		m.msg_name = (caddr_t)&from;
-		m.msg_namelen = sizeof(from);
-		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;
-		cm = (struct cmsghdr *)buf;
-		m.msg_control = (caddr_t)buf;
-		m.msg_controllen = sizeof(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 possiblity is
-			 * a path MTU notification.)
-			 */
-			if ((mtu = get_pathmtu(&m)) > 0) {
-				if ((options & F_VERBOSE) != 0) {
-					printf("new path MTU (%d) is "
-					    "notified\n", mtu);
-				}
-			}
-			continue;
-		} else {
-			/*
-			 * an ICMPv6 message (probably an echoreply) arrived.
-			 */
-			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;
-#ifdef SIGINFO
-	case SIGINFO:
-		seeninfo++;
-		break;
-#endif
-	}
-}
-
-/*
- * retransmit --
- *	This routine transmits another ping6.
- */
-void
-retransmit(void)
-{
-	struct itimerval itimer;
-
-	if (pinger() == 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
-	 * ten seconds if we haven't.
-	 */
-#define	MAXWAIT		10
-	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)signal(SIGALRM, onint);
-	(void)setitimer(ITIMER_REAL, &itimer, NULL);
-}
-
-/*
- * 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.
- */
-size_t
-pingerlen(void)
-{
-	size_t l;
-
-	if (options & F_FQDN)
-		l = ICMP6_NIQLEN + sizeof(dst.sin6_addr);
-	else if (options & F_FQDNOLD)
-		l = ICMP6_NIQLEN;
-	else if (options & F_NODEADDR)
-		l = ICMP6_NIQLEN + sizeof(dst.sin6_addr);
-	else if (options & F_SUPTYPES)
-		l = ICMP6_NIQLEN;
-	else
-		l = ICMP6ECHOLEN + datalen;
-
-	return l;
-}
-
-int
-pinger(void)
-{
-	struct icmp6_hdr *icp;
-	struct iovec iov[2];
-	int i, cc;
-	struct icmp6_nodeinfo *nip;
-	int seq;
-
-	if (npackets && ntransmitted >= npackets)
-		return(-1);	/* no more transmission */
-
-	icp = (struct icmp6_hdr *)outpack;
-	nip = (struct icmp6_nodeinfo *)outpack;
-	memset(icp, 0, sizeof(*icp));
-	icp->icmp6_cksum = 0;
-	seq = ntransmitted++;
-	CLR(seq % mx_dup_ck);
-
-	if (options & F_FQDN) {
-		icp->icmp6_type = ICMP6_NI_QUERY;
-		icp->icmp6_code = ICMP6_NI_SUBJ_IPV6;
-		nip->ni_qtype = htons(NI_QTYPE_FQDN);
-		nip->ni_flags = htons(0);
-
-		memcpy(nip->icmp6_ni_nonce, nonce,
-		    sizeof(nip->icmp6_ni_nonce));
-		*(u_int16_t *)nip->icmp6_ni_nonce = ntohs(seq);
-
-		memcpy(&outpack[ICMP6_NIQLEN], &dst.sin6_addr,
-		    sizeof(dst.sin6_addr));
-		cc = ICMP6_NIQLEN + sizeof(dst.sin6_addr);
-		datalen = 0;
-	} else if (options & F_FQDNOLD) {
-		/* packet format in 03 draft - no Subject data on queries */
-		icp->icmp6_type = ICMP6_NI_QUERY;
-		icp->icmp6_code = 0;	/* code field is always 0 */
-		nip->ni_qtype = htons(NI_QTYPE_FQDN);
-		nip->ni_flags = htons(0);
-
-		memcpy(nip->icmp6_ni_nonce, nonce,
-		    sizeof(nip->icmp6_ni_nonce));
-		*(u_int16_t *)nip->icmp6_ni_nonce = ntohs(seq);
-
-		cc = ICMP6_NIQLEN;
-		datalen = 0;
-	} else if (options & F_NODEADDR) {
-		icp->icmp6_type = ICMP6_NI_QUERY;
-		icp->icmp6_code = ICMP6_NI_SUBJ_IPV6;
-		nip->ni_qtype = htons(NI_QTYPE_NODEADDR);
-		nip->ni_flags = naflags;
-
-		memcpy(nip->icmp6_ni_nonce, nonce,
-		    sizeof(nip->icmp6_ni_nonce));
-		*(u_int16_t *)nip->icmp6_ni_nonce = ntohs(seq);
-
-		memcpy(&outpack[ICMP6_NIQLEN], &dst.sin6_addr,
-		    sizeof(dst.sin6_addr));
-		cc = ICMP6_NIQLEN + sizeof(dst.sin6_addr);
-		datalen = 0;
-	} else if (options & F_SUPTYPES) {
-		icp->icmp6_type = ICMP6_NI_QUERY;
-		icp->icmp6_code = ICMP6_NI_SUBJ_FQDN;	/*empty*/
-		nip->ni_qtype = htons(NI_QTYPE_SUPTYPES);
-		/* we support compressed bitmap */
-		nip->ni_flags = NI_SUPTYPE_FLAG_COMPRESS;
-
-		memcpy(nip->icmp6_ni_nonce, nonce,
-		    sizeof(nip->icmp6_ni_nonce));
-		*(u_int16_t *)nip->icmp6_ni_nonce = ntohs(seq);
-		cc = ICMP6_NIQLEN;
-		datalen = 0;
-	} else {
-		icp->icmp6_type = ICMP6_ECHO_REQUEST;
-		icp->icmp6_code = 0;
-		icp->icmp6_id = htons(ident);
-		icp->icmp6_seq = ntohs(seq);
-		if (timing) {
-			struct timeval tv;
-			struct tv32 *tv32;
-			(void)gettimeofday(&tv, NULL);
-			tv32 = (struct tv32 *)&outpack[ICMP6ECHOLEN];
-			tv32->tv32_sec = htonl(tv.tv_sec);
-			tv32->tv32_usec = htonl(tv.tv_usec);
-		}
-		cc = ICMP6ECHOLEN + datalen;
-	}
-
-#ifdef DIAGNOSTIC
-	if (pingerlen() != cc)
-		errx(1, "internal error; length mismatch");
-#endif
-
-	smsghdr.msg_name = (caddr_t)&dst;
-	smsghdr.msg_namelen = sizeof(dst);
-	memset(&iov, 0, sizeof(iov));
-	iov[0].iov_base = (caddr_t)outpack;
-	iov[0].iov_len = cc;
-	smsghdr.msg_iov = iov;
-	smsghdr.msg_iovlen = 1;
-
-	i = sendmsg(s, &smsghdr, 0);
-
-	if (i < 0 || i != cc)  {
-		if (i < 0)
-			warn("sendmsg");
-		(void)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);
-}
-
-int
-myechoreply(const struct icmp6_hdr *icp)
-{
-	if (ntohs(icp->icmp6_id) == ident)
-		return 1;
-	else
-		return 0;
-}
-
-int
-mynireply(const struct icmp6_nodeinfo *nip)
-{
-	if (memcmp(nip->icmp6_ni_nonce + sizeof(u_int16_t),
-	    nonce + sizeof(u_int16_t),
-	    sizeof(nonce) - sizeof(u_int16_t)) == 0)
-		return 1;
-	else
-		return 0;
-}
-
-char *
-dnsdecode(const u_char **sp, const u_char *ep, const u_char *base, char *buf,
-	  size_t bufsiz)
-{
-	int i;
-	const u_char *cp;
-	char cresult[MAXDNAME + 1];
-	const u_char *comp;
-	int l;
-
-	i = 0;		/* XXXGCC -Wuninitialized [sun2] */
-
-	cp = *sp;
-	*buf = '\0';
-
-	if (cp >= ep)
-		return NULL;
-	while (cp < ep) {
-		i = *cp;
-		if (i == 0 || cp != *sp) {
-			if (strlcat((char *)buf, ".", bufsiz) >= bufsiz)
-				return NULL;	/*result overrun*/
-		}
-		if (i == 0)
-			break;
-		cp++;
-
-		if ((i & 0xc0) == 0xc0 && cp - base > (i & 0x3f)) {
-			/* DNS compression */
-			if (!base)
-				return NULL;
-
-			comp = base + (i & 0x3f);
-			if (dnsdecode(&comp, cp, base, cresult,
-			    sizeof(cresult)) == NULL)
-				return NULL;
-			if (strlcat(buf, cresult, bufsiz) >= bufsiz)
-				return NULL;	/*result overrun*/
-			break;
-		} else if ((i & 0x3f) == i) {
-			if (i > ep - cp)
-				return NULL;	/*source overrun*/
-			while (i-- > 0 && cp < ep) {
-				l = snprintf(cresult, sizeof(cresult),
-				    isprint(*cp) ? "%c" : "\\%03o", *cp & 0xff);
-				if (l >= (int)sizeof(cresult) || l < 0)
-					return NULL;
-				if (strlcat(buf, cresult, bufsiz) >= bufsiz)
-					return NULL;	/*result overrun*/
-				cp++;
-			}
-		} else
-			return NULL;	/*invalid label*/
-	}
-	if (i != 0)
-		return NULL;	/*not terminated*/
-	cp++;
-	*sp = cp;
-	return buf;
-}
-
-/*
- * 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)
-{
-#define safeputc(c)	printf((isprint((c)) ? "%c" : "\\%03o"), c)
-	struct icmp6_hdr *icp;
-	struct icmp6_nodeinfo *ni;
-	int i;
-	int hoplim;
-	struct sockaddr *from;
-	int fromlen;
-	u_char *cp = NULL, *dp, *end = buf + cc;
-	struct in6_pktinfo *pktinfo = NULL;
-	struct timeval tv, tp;
-	struct tv32 *tpp;
-	double triptime = 0;
-	int dupflag;
-	size_t off;
-	int oldfqdn;
-	u_int16_t seq;
-	char dnsname[MAXDNAME + 1];
-
-	(void)gettimeofday(&tv, NULL);
-
-	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 < (int)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;
-	ni = (struct icmp6_nodeinfo *)buf;
-	off = 0;
-
-	if ((hoplim = get_hoplim(mhdr)) == -1) {
-		warnx("failed to get receiving hop limit");
-		return;
-	}
-	if ((pktinfo = get_rcvpktinfo(mhdr)) == NULL) {
-		warnx("failed to get receiving packet information");
-		return;
-	}
-
-	if (icp->icmp6_type == ICMP6_ECHO_REPLY && myechoreply(icp)) {
-		seq = ntohs(icp->icmp6_seq);
-		++nreceived;
-		if (timing) {
-			tpp = (struct tv32 *)(icp + 1);
-			tp.tv_sec = ntohl(tpp->tv32_sec);
-			tp.tv_usec = ntohl(tpp->tv32_usec);
-			tvsub(&tv, &tp);
-			triptime = ((double)tv.tv_sec) * 1000.0 +
-			    ((double)tv.tv_usec) / 1000.0;
-			tsum += triptime;
-			tsumsq += triptime * triptime;
-			if (triptime < tmin)
-				tmin = triptime;
-			if (triptime > tmax)
-				tmax = triptime;
-		}
-
-		if (TST(seq % mx_dup_ck)) {
-			++nrepeats;
-			--nreceived;
-			dupflag = 1;
-		} else {
-			SET(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), seq);
-			(void)printf(" hlim=%d", hoplim);
-			if ((options & F_VERBOSE) != 0) {
-				struct sockaddr_in6 dstsa;
-
-				memset(&dstsa, 0, sizeof(dstsa));
-				dstsa.sin6_family = AF_INET6;
-#ifdef SIN6_LEN
-				dstsa.sin6_len = sizeof(dstsa);
-#endif
-				dstsa.sin6_scope_id = pktinfo->ipi6_ifindex;
-				dstsa.sin6_addr = pktinfo->ipi6_addr;
-				(void)printf(" dst=%s",
-				    pr_addr((struct sockaddr *)&dstsa,
-				    sizeof(dstsa)));
-			}
-			if (timing)
-				(void)printf(" time=%.3f ms", triptime);
-			if (dupflag)
-				(void)printf("(DUP!)");
-			/* check the data */
-			cp = buf + off + ICMP6ECHOLEN + ICMP6ECHOTMLEN;
-			dp = outpack + ICMP6ECHOLEN + ICMP6ECHOTMLEN;
-			for (i = 8; cp < end; ++i, ++cp, ++dp) {
-				if (*cp != *dp) {
-					(void)printf("\nwrong data byte #%d should be 0x%x but was 0x%x", i, *dp, *cp);
-					break;
-				}
-			}
-		}
-	} else if (icp->icmp6_type == ICMP6_NI_REPLY && mynireply(ni)) {
-		seq = ntohs(*(u_int16_t *)ni->icmp6_ni_nonce);
-		++nreceived;
-		if (TST(seq % mx_dup_ck)) {
-			++nrepeats;
-			--nreceived;
-			dupflag = 1;
-		} else {
-			SET(seq % mx_dup_ck);
-			dupflag = 0;
-		}
-
-		if (options & F_QUIET)
-			return;
-
-		(void)printf("%d bytes from %s: ", cc, pr_addr(from, fromlen));
-
-		switch (ntohs(ni->ni_code)) {
-		case ICMP6_NI_SUCCESS:
-			break;
-		case ICMP6_NI_REFUSED:
-			printf("refused, type 0x%x", ntohs(ni->ni_type));
-			goto fqdnend;
-		case ICMP6_NI_UNKNOWN:
-			printf("unknown, type 0x%x", ntohs(ni->ni_type));
-			goto fqdnend;
-		default:
-			printf("unknown code 0x%x, type 0x%x",
-			    ntohs(ni->ni_code), ntohs(ni->ni_type));
-			goto fqdnend;
-		}
-
-		switch (ntohs(ni->ni_qtype)) {
-		case NI_QTYPE_NOOP:
-			printf("NodeInfo NOOP");
-			break;
-		case NI_QTYPE_SUPTYPES:
-			pr_suptypes(ni, end - (u_char *)ni);
-			break;
-		case NI_QTYPE_NODEADDR:
-			pr_nodeaddr(ni, end - (u_char *)ni);
-			break;
-		case NI_QTYPE_FQDN:
-		default:	/* XXX: for backward compatibility */
-			cp = (u_char *)ni + ICMP6_NIRLEN;
-			if (buf[off + ICMP6_NIRLEN] ==
-			    cc - off - ICMP6_NIRLEN - 1)
-				oldfqdn = 1;
-			else
-				oldfqdn = 0;
-			if (oldfqdn) {
-				cp++;	/* skip length */
-				while (cp < end) {
-					safeputc(*cp & 0xff);
-					cp++;
-				}
-			} else {
-				i = 0;
-				while (cp < end) {
-					if (dnsdecode((const u_char **)&cp, end,
-					    (const u_char *)(ni + 1), dnsname,
-					    sizeof(dnsname)) == NULL) {
-						printf("???");
-						break;
-					}
-					/*
-					 * name-lookup special handling for
-					 * truncated name
-					 */
-					if (cp + 1 <= end && !*cp &&
-					    strlen(dnsname) > 0) {
-						dnsname[strlen(dnsname) - 1] = '\0';
-						cp++;
-					}
-					printf("%s%s", i > 0 ? "," : "",
-					    dnsname);
-				}
-			}
-			if (options & F_VERBOSE) {
-				int32_t ttl;
-				int comma = 0;
-
-				(void)printf(" (");	/*)*/
-
-				switch (ni->ni_code) {
-				case ICMP6_NI_REFUSED:
-					(void)printf("refused");
-					comma++;
-					break;
-				case ICMP6_NI_UNKNOWN:
-					(void)printf("unknown qtype");
-					comma++;
-					break;
-				}
-
-				if ((end - (u_char *)ni) < ICMP6_NIRLEN) {
-					/* case of refusion, unknown */
-					/*(*/
-					putchar(')');
-					goto fqdnend;
-				}
-				ttl = (int32_t)ntohl(*(u_long *)&buf[off+ICMP6ECHOLEN+8]);
-				if (comma)
-					printf(",");
-				if (!(ni->ni_flags & NI_FQDN_FLAG_VALIDTTL)) {
-					(void)printf("TTL=%d:meaningless",
-					    (int)ttl);
-				} else {
-					if (ttl < 0) {
-						(void)printf("TTL=%d:invalid",
-						   ttl);
-					} else
-						(void)printf("TTL=%d", ttl);
-				}
-				comma++;
-
-				if (oldfqdn) {
-					if (comma)
-						printf(",");
-					printf("03 draft");
-					comma++;
-				} else {
-					cp = (u_char *)ni + ICMP6_NIRLEN;
-					if (cp == end) {
-						if (comma)
-							printf(",");
-						printf("no name");
-						comma++;
-					}
-				}
-
-				if (buf[off + ICMP6_NIRLEN] !=
-				    cc - off - ICMP6_NIRLEN - 1 && oldfqdn) {
-					if (comma)
-						printf(",");
-					(void)printf("invalid namelen:%d/%lu",
-					    buf[off + ICMP6_NIRLEN],
-					    (u_long)cc - off - ICMP6_NIRLEN - 1);
-					comma++;
-				}
-				/*(*/
-				putchar(')');
-			}
-		fqdnend:
-			;
-		}
-	} 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_icmph(icp, end);
-	}
-
-	if (!(options & F_FLOOD)) {
-		(void)putchar('\n');
-		if (options & F_VERBOSE)
-			pr_exthdrs(mhdr);
-		(void)fflush(stdout);
-	}
-#undef safeputc
-}
-
-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) {
-#ifdef ANDROID_INCLUDE_RTHDR_SUPPORT
-		case IPV6_HOPOPTS:
-			printf("  HbH Options: ");
-			pr_ip6opt(CMSG_DATA(cm));
-			break;
-		case IPV6_DSTOPTS:
-#ifdef IPV6_RTHDRDSTOPTS
-		case IPV6_RTHDRDSTOPTS:
-#endif
-			printf("  Dst Options: ");
-			pr_ip6opt(CMSG_DATA(cm));
-			break;
-		case IPV6_RTHDR:
-			printf("  Routing: ");
-			pr_rthdr(CMSG_DATA(cm));
-			break;
-#endif
-		}
-	}
-}
-
-#ifdef ANDROID_INCLUDE_RTHDR_SUPPORT
-void
-pr_ip6opt(void *extbuf)
-{
-	struct ip6_hbh *ext;
-	int currentlen;
-	u_int8_t type;
-	size_t extlen;
-	socklen_t len;
-	void *databuf;
-	size_t offset;
-	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
-		 * optins.
-		 */
-		case IP6OPT_JUMBO:
-			offset = 0;
-			offset = inet6_opt_get_val(databuf, offset,
-			    &value4, sizeof(value4));
-			printf("    Jumbo Payload Opt: Length %u\n",
-			    (u_int32_t)ntohl(value4));
-			break;
-		case IP6OPT_ROUTER_ALERT:
-			offset = 0;
-			offset = inet6_opt_get_val(databuf, offset,
-						   &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;
-}
-#endif
-
-#ifdef ANDROID_INCLUDE_RTHDR_SUPPORT
-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)))
-				strlcpy(ntopbuf, "?", sizeof(ntopbuf));
-			printf("   [%d]%s\n", i, ntopbuf);
-		}
-	}
-
-	return;
-
-}
-#endif
-
-int
-pr_bitrange(u_int32_t v, int soff, int ii)
-{
-	int off;
-	int i;
-
-	off = 0;
-	while (off < 32) {
-		/* shift till we have 0x01 */
-		if ((v & 0x01) == 0) {
-			if (ii > 1)
-				printf("-%u", soff + off - 1);
-			ii = 0;
-			switch (v & 0x0f) {
-			case 0x00:
-				v >>= 4;
-				off += 4;
-				continue;
-			case 0x08:
-				v >>= 3;
-				off += 3;
-				continue;
-			case 0x04: case 0x0c:
-				v >>= 2;
-				off += 2;
-				continue;
-			default:
-				v >>= 1;
-				off += 1;
-				continue;
-			}
-		}
-
-		/* we have 0x01 with us */
-		for (i = 0; i < 32 - off; i++) {
-			if ((v & (0x01 << i)) == 0)
-				break;
-		}
-		if (!ii)
-			printf(" %u", soff + off);
-		ii += i;
-		v >>= i; off += i;
-	}
-	return ii;
-}
-
-void
-pr_suptypes(struct icmp6_nodeinfo *ni /* ni->qtype must be SUPTYPES */,
-	    size_t nilen)
-{
-	size_t clen;
-	u_int32_t v;
-	const u_char *cp, *end;
-	u_int16_t cur;
-	struct cbit {
-		u_int16_t words;	/*32bit count*/
-		u_int16_t skip;
-	} cbit;
-#define MAXQTYPES	(1 << 16)
-	size_t off;
-	int b;
-
-	cp = (u_char *)(ni + 1);
-	end = ((u_char *)ni) + nilen;
-	cur = 0;
-	b = 0;
-
-	printf("NodeInfo Supported Qtypes");
-	if (options & F_VERBOSE) {
-		if (ni->ni_flags & NI_SUPTYPE_FLAG_COMPRESS)
-			printf(", compressed bitmap");
-		else
-			printf(", raw bitmap");
-	}
-
-	while (cp < end) {
-		clen = (size_t)(end - cp);
-		if ((ni->ni_flags & NI_SUPTYPE_FLAG_COMPRESS) == 0) {
-			if (clen == 0 || clen > MAXQTYPES / 8 ||
-			    clen % sizeof(v)) {
-				printf("???");
-				return;
-			}
-		} else {
-			if (clen < sizeof(cbit) || clen % sizeof(v))
-				return;
-			memcpy(&cbit, cp, sizeof(cbit));
-			if (sizeof(cbit) + ntohs(cbit.words) * sizeof(v) >
-			    clen)
-				return;
-			cp += sizeof(cbit);
-			clen = ntohs(cbit.words) * sizeof(v);
-			if (cur + clen * 8 + (u_long)ntohs(cbit.skip) * 32 >
-			    MAXQTYPES)
-				return;
-		}
-
-		for (off = 0; off < clen; off += sizeof(v)) {
-			memcpy(&v, cp + off, sizeof(v));
-			v = (u_int32_t)ntohl(v);
-			b = pr_bitrange(v, (int)(cur + off * 8), b);
-		}
-		/* flush the remaining bits */
-		b = pr_bitrange(0, (int)(cur + off * 8), b);
-
-		cp += clen;
-		cur += clen * 8;
-		if ((ni->ni_flags & NI_SUPTYPE_FLAG_COMPRESS) != 0)
-			cur += ntohs(cbit.skip) * 32;
-	}
-}
-
-void
-pr_nodeaddr(struct icmp6_nodeinfo *ni, /* ni->qtype must be NODEADDR */
-	    int nilen)
-{
-	u_char *cp = (u_char *)(ni + 1);
-	char ntop_buf[INET6_ADDRSTRLEN];
-	int withttl = 0;
-
-	nilen -= sizeof(struct icmp6_nodeinfo);
-
-	if (options & F_VERBOSE) {
-		switch (ni->ni_code) {
-		case ICMP6_NI_REFUSED:
-			(void)printf("refused");
-			break;
-		case ICMP6_NI_UNKNOWN:
-			(void)printf("unknown qtype");
-			break;
-		}
-		if (ni->ni_flags & NI_NODEADDR_FLAG_TRUNCATE)
-			(void)printf(" truncated");
-	}
-	putchar('\n');
-	if (nilen <= 0)
-		printf("  no address\n");
-
-	/*
-	 * In icmp-name-lookups 05 and later, TTL of each returned address
-	 * is contained in the resposne. We try to detect the version
-	 * by the length of the data, but note that the detection algorithm
-	 * is incomplete. We assume the latest draft by default.
-	 */
-	if (nilen % (sizeof(u_int32_t) + sizeof(struct in6_addr)) == 0)
-		withttl = 1;
-	while (nilen > 0) {
-		u_int32_t ttl = 0;
-
-		if (withttl) {
-			/* XXX: alignment? */
-			ttl = (u_int32_t)ntohl(*(u_int32_t *)cp);
-			cp += sizeof(u_int32_t);
-			nilen -= sizeof(u_int32_t);
-		}
-
-		if (inet_ntop(AF_INET6, cp, ntop_buf, sizeof(ntop_buf)) ==
-		    NULL)
-			strlcpy(ntop_buf, "?", sizeof(ntop_buf));
-		printf("  %s", ntop_buf);
-		if (withttl) {
-			if (ttl == 0xffffffff) {
-				/*
-				 * XXX: can this convention be applied to all
-				 * type of TTL (i.e. non-ND TTL)?
-				 */
-				printf("(TTL=infty)");
-			}
-			else
-				printf("(TTL=%u)", ttl);
-		}
-		putchar('\n');
-
-		nilen -= sizeof(struct in6_addr);
-		cp += sizeof(struct in6_addr);
-	}
-}
-
-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);
-}
-
-struct in6_pktinfo *
-get_rcvpktinfo(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(NULL);
-
-		if (cm->cmsg_level == IPPROTO_IPV6 &&
-		    cm->cmsg_type == IPV6_PKTINFO &&
-		    cm->cmsg_len == CMSG_LEN(sizeof(struct in6_pktinfo)))
-			return((struct in6_pktinfo *)CMSG_DATA(cm));
-	}
-
-	return(NULL);
-}
-
-int
-get_pathmtu(struct msghdr *mhdr)
-{
-#ifdef IPV6_RECVPATHMTU
-	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);
-		}
-	}
-#endif
-	return(0);
-}
-
-/*
- * tvsub --
- *	Subtract 2 timeval structs:  out = out - in.  Out is assumed to
- * be >= in.
- */
-void
-tvsub(struct timeval *out, struct timeval *in)
-{
-	if ((out->tv_usec -= in->tv_usec) < 0) {
-		--out->tv_sec;
-		out->tv_usec += 1000000;
-	}
-	out->tv_sec -= in->tv_sec;
-}
-
-/*
- * onint --
- *	SIGINT handler.
- */
-/* ARGSUSED */
-void
-onint(int notused)
-{
-	summary();
-
-	(void)signal(SIGINT, SIG_DFL);
-	(void)kill(getpid(), SIGINT);
-
-	/* NOTREACHED */
-	exit(1);
-}
-
-/*
- * summary --
- *	Print out statistics.
- */
-void
-summary(void)
-{
-
-	(void)printf("\n--- %s ping6 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 duplicating packets!");
-		else
-			(void)printf("%.1f%% packet loss",
-			    ((((double)ntransmitted - nreceived) * 100.0) /
-			    ntransmitted));
-	}
-	(void)putchar('\n');
-	if (nreceived && timing) {
-		/* Only display average to microseconds */
-		double num = nreceived + nrepeats;
-		double dev, avg;
-		if (num > 1) {
-			avg = tsum / num;
-			dev = sqrt((tsumsq - num * avg * avg) / (num - 1));
-		} else {
-			avg = tsum;
-			dev = 0.0;
-		}
-		(void)printf(
-		    "round-trip min/avg/max/std-dev = %.3f/%.3f/%.3f/%.3f ms\n",
-		    tmin, avg, tmax, dev);
-		(void)fflush(stdout);
-	}
-	(void)fflush(stdout);
-}
-
-/*subject type*/
-static const char *niqcode[] = {
-	"IPv6 address",
-	"DNS label",	/*or empty*/
-	"IPv4 address",
-};
-
-/*result code*/
-static const char *nircode[] = {
-	"Success", "Refused", "Unknown",
-};
-
-
-/*
- * pr_icmph --
- *	Print a descriptive string about an ICMP header.
- */
-void
-pr_icmph(struct icmp6_hdr *icp, u_char *end)
-{
-	char ntop_buf[INET6_ADDRSTRLEN];
-	struct nd_redirect *red;
-	struct icmp6_nodeinfo *ni;
-	char dnsname[MAXDNAME + 1];
-	const u_char *cp;
-	size_t l;
-
-	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_retip((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_retip((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_retip((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_retip((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)))
-			strlcpy(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)))
-			strlcpy(ntop_buf, "?", sizeof(ntop_buf));
-		(void)printf(" New Target: %s", ntop_buf);
-		break;
-	case ICMP6_NI_QUERY:
-		(void)printf("Node Information Query");
-		/* XXX ID + Seq + Data */
-		ni = (struct icmp6_nodeinfo *)icp;
-		l = end - (u_char *)(ni + 1);
-		printf(", ");
-		switch (ntohs(ni->ni_qtype)) {
-		case NI_QTYPE_NOOP:
-			(void)printf("NOOP");
-			break;
-		case NI_QTYPE_SUPTYPES:
-			(void)printf("Supported qtypes");
-			break;
-		case NI_QTYPE_FQDN:
-			(void)printf("DNS name");
-			break;
-		case NI_QTYPE_NODEADDR:
-			(void)printf("nodeaddr");
-			break;
-		case NI_QTYPE_IPV4ADDR:
-			(void)printf("IPv4 nodeaddr");
-			break;
-		default:
-			(void)printf("unknown qtype");
-			break;
-		}
-		if (options & F_VERBOSE) {
-			switch (ni->ni_code) {
-			case ICMP6_NI_SUBJ_IPV6:
-				if (l == sizeof(struct in6_addr) &&
-				    inet_ntop(AF_INET6, ni + 1, ntop_buf,
-				    sizeof(ntop_buf)) != NULL) {
-					(void)printf(", subject=%s(%s)",
-					    niqcode[ni->ni_code], ntop_buf);
-				} else {
-#if 1
-					/* backward compat to -W */
-					(void)printf(", oldfqdn");
-#else
-					(void)printf(", invalid");
-#endif
-				}
-				break;
-			case ICMP6_NI_SUBJ_FQDN:
-				if (end == (u_char *)(ni + 1)) {
-					(void)printf(", no subject");
-					break;
-				}
-				printf(", subject=%s", niqcode[ni->ni_code]);
-				cp = (const u_char *)(ni + 1);
-				if (dnsdecode(&cp, end, NULL, dnsname,
-				    sizeof(dnsname)) != NULL)
-					printf("(%s)", dnsname);
-				else
-					printf("(invalid)");
-				break;
-			case ICMP6_NI_SUBJ_IPV4:
-				if (l == sizeof(struct in_addr) &&
-				    inet_ntop(AF_INET, ni + 1, ntop_buf,
-				    sizeof(ntop_buf)) != NULL) {
-					(void)printf(", subject=%s(%s)",
-					    niqcode[ni->ni_code], ntop_buf);
-				} else
-					(void)printf(", invalid");
-				break;
-			default:
-				(void)printf(", invalid");
-				break;
-			}
-		}
-		break;
-	case ICMP6_NI_REPLY:
-		(void)printf("Node Information Reply");
-		/* XXX ID + Seq + Data */
-		ni = (struct icmp6_nodeinfo *)icp;
-		printf(", ");
-		switch (ntohs(ni->ni_qtype)) {
-		case NI_QTYPE_NOOP:
-			(void)printf("NOOP");
-			break;
-		case NI_QTYPE_SUPTYPES:
-			(void)printf("Supported qtypes");
-			break;
-		case NI_QTYPE_FQDN:
-			(void)printf("DNS name");
-			break;
-		case NI_QTYPE_NODEADDR:
-			(void)printf("nodeaddr");
-			break;
-		case NI_QTYPE_IPV4ADDR:
-			(void)printf("IPv4 nodeaddr");
-			break;
-		default:
-			(void)printf("unknown qtype");
-			break;
-		}
-		if (options & F_VERBOSE) {
-			if (ni->ni_code >= sizeof(nircode) / sizeof(nircode[0]))
-				printf(", invalid");
-			else
-				printf(", %s", nircode[ni->ni_code]);
-		}
-		break;
-	default:
-		(void)printf("Bad ICMP type: %d", icp->icmp6_type);
-	}
-}
-
-/*
- * pr_iph --
- *	Print an IP6 header.
- */
-void
-pr_iph(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)))
-		strlcpy(ntop_buf, "?", sizeof(ntop_buf));
-	printf("%s->", ntop_buf);
-	if (!inet_ntop(AF_INET6, &ip6->ip6_dst, ntop_buf, sizeof(ntop_buf)))
-		strlcpy(ntop_buf, "?", sizeof(ntop_buf));
-	printf("%s\n", ntop_buf);
-}
-
-/*
- * pr_addr --
- *	Return an ascii host address as a dotted quad and optionally with
- * a hostname.
- */
-const char *
-pr_addr(struct sockaddr *addr, int 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 "?";
-}
-
-/*
- * pr_retip --
- *	Dump some info on a returned (via ICMPv6) IPv6 packet.
- */
-void
-pr_retip(struct ip6_hdr *ip6, u_char *end)
-{
-	u_char *cp = (u_char *)ip6, nh;
-	int hlen;
-
-	if (end - (u_char *)ip6 < (intptr_t)sizeof(*ip6)) {
-		printf("IP6");
-		goto trunc;
-	}
-	pr_iph(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;
-#ifdef IPSEC
-		case IPPROTO_AH:
-			printf("AH ");
-			hlen = (((struct ah *)cp)->ah_len+2) << 2;
-			nh = ((struct ah *)cp)->ah_nxt;
-			break;
-#endif
-		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;
-}
-
-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]);
-
-/* xxx */
-	if (ii > 0)
-		for (kk = 0;
-		    kk <= (int)(MAXDATALEN - (8 + sizeof(struct tv32) + 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");
-	}
-}
-
-#ifdef IPSEC
-#ifdef IPSEC_POLICY_IPSEC
-int
-setpolicy(int so, char *policy)
-{
-	char *buf;
-
-	if (policy == NULL)
-		return 0;	/* ignore */
-
-	buf = ipsec_set_policy(policy, strlen(policy));
-	if (buf == NULL)
-		errx(1, "%s", ipsec_strerror());
-	if (setsockopt(s, IPPROTO_IPV6, IPV6_IPSEC_POLICY, buf,
-	    ipsec_get_policylen(buf)) < 0)
-		warnx("Unable to set IPsec policy");
-	free(buf);
-
-	return 0;
-}
-#endif
-#endif
-
-#ifdef ANDROID_INCLUDE_MD5_SUPPORT
-char *
-nigroup(char *name)
-{
-	char *p;
-	char *q;
-	MD5_CTX ctxt;
-	u_int8_t digest[16];
-	u_int8_t c;
-	size_t l;
-	char hbuf[NI_MAXHOST];
-	struct in6_addr in6;
-
-	p = strchr(name, '.');
-	if (!p)
-		p = name + strlen(name);
-	l = p - name;
-	if (l > 63 || l > sizeof(hbuf) - 1)
-		return NULL;	/*label too long*/
-	strncpy(hbuf, name, l);
-	hbuf[(int)l] = '\0';
-
-	for (q = name; *q; q++) {
-		if (isupper(*(unsigned char *)q))
-			*q = tolower(*(unsigned char *)q);
-	}
-
-	/* generate 8 bytes of pseudo-random value. */
-	memset(&ctxt, 0, sizeof(ctxt));
-	MD5Init(&ctxt);
-	c = l & 0xff;
-	MD5Update(&ctxt, &c, sizeof(c));
-	MD5Update(&ctxt, (unsigned char *)name, l);
-	MD5Final(digest, &ctxt);
-
-	if (inet_pton(AF_INET6, "ff02::2:0000:0000", &in6) != 1)
-		return NULL;	/*XXX*/
-	bcopy(digest, &in6.s6_addr[12], 4);
-
-	if (inet_ntop(AF_INET6, &in6, hbuf, sizeof(hbuf)) == NULL)
-		return NULL;
-
-	return strdup(hbuf);
-}
-#endif
-
-void
-usage(void)
-{
-	(void)fprintf(stderr,
-	    "usage: ping6 [-dfH"
-#ifdef IPV6_USE_MIN_MTU
-	    "m"
-#endif
-	    "nNqtvwW"
-#ifdef IPV6_REACHCONF
-	    "R"
-#endif
-#ifdef IPSEC
-#ifdef IPSEC_POLICY_IPSEC
-	    "] [-P policy"
-#else
-	    "AE"
-#endif
-#endif
-	    "] [-a [aAclsg]] [-b sockbufsiz] [-c count] \n"
-            "\t[-I interface] [-i wait] [-l preload] [-p pattern] "
-	    "[-S sourceaddr]\n"
-            "\t[-s packetsize] [-h hoplimit] [-g gateway] [hops...] host\n");
-	exit(1);
-}