--- old/usr/src/cmd/cmd-inet/usr.sbin/in.rwhod.c	2017-05-26 19:14:04.935446571 -0400
+++ /dev/null	2017-05-26 19:14:04.000000000 -0400
@@ -1,777 +0,0 @@
-/*
- * CDDL HEADER START
- *
- * The contents of this file are subject to the terms of the
- * Common Development and Distribution License, Version 1.0 only
- * (the "License").  You may not use this file except in compliance
- * with the License.
- *
- * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
- * or http://www.opensolaris.org/os/licensing.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- *
- * When distributing Covered Code, include this CDDL HEADER in each
- * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
- * If applicable, add the following below this CDDL HEADER, with the
- * fields enclosed by brackets "[]" replaced with your own identifying
- * information: Portions Copyright [yyyy] [name of copyright owner]
- *
- * CDDL HEADER END
- */
-/*
- * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
- * Use is subject to license terms.
- */
-
-/*	Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T	*/
-/*	  All Rights Reserved  	*/
-
-/*
- * Portions of this source code were derived from Berkeley 4.3 BSD
- * under license from the Regents of the University of California.
- */
-
-#pragma ident	"%Z%%M%	%I%	%E% SMI"
-
-#include <sys/types.h>
-#include <sys/param.h>
-#include <sys/socket.h>
-#include <sys/sockio.h>
-#include <sys/stat.h>
-#include <sys/ioctl.h>
-#include <sys/file.h>
-#include <sys/loadavg.h>
-
-#include <net/if.h>
-#include <netinet/in.h>
-
-#include <stdio.h>
-#include <signal.h>
-#include <errno.h>
-#include <utmpx.h>
-#include <ctype.h>
-#include <netdb.h>
-#include <syslog.h>
-#include <fcntl.h>
-#include <sys/isa_defs.h>	/* for ENDIAN defines */
-#include <arpa/inet.h>
-#include <protocols/rwhod.h>
-
-#include <strings.h>
-#include <stdlib.h>
-#include <unistd.h>
-
-/*
- * This version of Berkeley's rwhod has been modified to use IP multicast
- * datagrams, under control of a new command-line option:
- *
- *	rwhod -m	causes rwhod to use IP multicast (instead of
- *			broadcast or unicast) on all interfaces that have
- *			the IFF_MULTICAST flag set in their "ifnet" structs
- *			(excluding the loopback interface).  The multicast
- *			reports are sent with a time-to-live of 1, to prevent
- *			forwarding beyond the directly-connected subnet(s).
- *
- *	rwhod -m <ttl>	causes rwhod to send IP multicast datagrams with a
- *			time-to-live of <ttl>, via a SINGLE interface rather
- *			than all interfaces.  <ttl> must be between 0 and
- *			MAX_MULTICAST_SCOPE, defined below.  Note that "-m 1"
- *			is different than "-m", in that "-m 1" specifies
- *			transmission on one interface only.
- *
- * When "-m" is used without a <ttl> argument, the program accepts multicast
- * rwhod reports from all multicast-capable interfaces.  If a <ttl> argument
- * is given, it accepts multicast reports from only one interface, the one
- * on which reports are sent (which may be controlled via the host's routing
- * table).  Regardless of the "-m" option, the program accepts broadcast or
- * unicast reports from all interfaces.  Thus, this program will hear the
- * reports of old, non-multicasting rwhods, but, if multicasting is used,
- * those old rwhods won't hear the reports generated by this program.
- *
- *                  -- Steve Deering, Stanford University, February 1989
- */
-
-#define	NO_MULTICAST		0	  /* multicast modes */
-#define	PER_INTERFACE_MULTICAST	1
-#define	SCOPED_MULTICAST	2
-
-#define	MAX_MULTICAST_SCOPE	32	  /* "site-wide", by convention */
-
-#define	INADDR_WHOD_GROUP	(ulong_t)0xe0000103	/* 224.0.1.3 */
-					/* (belongs in protocols/rwhod.h) */
-
-static int			multicast_mode  = NO_MULTICAST;
-static int			multicast_scope;
-static struct sockaddr_in	multicast_addr  = { AF_INET };
-
-
-/*
- * Alarm interval. Don't forget to change the down time check in ruptime
- * if this is changed.
- */
-#define	AL_INTERVAL (3 * 60)
-
-static struct	sockaddr_in sin = { AF_INET };
-
-static char	myname[MAXHOSTNAMELEN];
-
-/*
- * We communicate with each neighbor in
- * a list constructed at the time we're
- * started up.  Neighbors are currently
- * directly connected via a hardware interface.
- */
-struct	neighbor {
-	struct	neighbor *n_next;
-	char	*n_name;		/* interface name */
-	char	*n_addr;		/* who to send to */
-	int	n_addrlen;		/* size of address */
-	ulong_t	n_subnet;		/* AF_INET subnet */
-	uint_t	n_flags;		/* should forward?, interface flags */
-};
-
-static struct	neighbor *neighbors;
-static struct	whod mywd;
-static struct	servent *sp;
-static int	s;
-
-#define	WHDRSIZE	(sizeof (mywd) - sizeof (mywd.wd_we))
-#define	RWHODIR		"/var/spool/rwho"
-
-static void		onalrm(void);
-static void		getkmem(void);
-static boolean_t	configure(int);
-static int		verify(const struct whod *);
-
-int
-main(int argc, char *argv[])
-{
-	struct sockaddr_in from;
-	struct stat st;
-	char path[64];
-	struct hostent *hp;
-	int on = 1;
-	char *cp;
-	struct stat sb;
-
-	if (getuid()) {
-		(void) fprintf(stderr, "in.rwhod: not super user\n");
-		exit(1);
-	}
-	sp = getservbyname("who", "udp");
-	if (sp == NULL) {
-		(void) fprintf(stderr, "in.rwhod: udp/who: unknown service\n");
-		exit(1);
-	}
-	argv++;
-	argc--;
-	while (argc > 0 && *argv[0] == '-') {
-		if (strcmp(*argv, "-m") == 0) {
-			if (argc > 1 && isdigit(*(argv + 1)[0])) {
-				argv++;
-				argc--;
-				multicast_mode  = SCOPED_MULTICAST;
-				multicast_scope = atoi(*argv);
-				if (multicast_scope > MAX_MULTICAST_SCOPE) {
-					(void) fprintf(stderr,
-					    "in.rwhod: "
-					    "ttl must not exceed %u\n",
-					    MAX_MULTICAST_SCOPE);
-					exit(1);
-				}
-			} else {
-				multicast_mode = PER_INTERFACE_MULTICAST;
-			}
-		} else {
-			goto usage;
-		}
-		argv++;
-		argc--;
-	}
-	if (argc > 0)
-		goto usage;
-	if (chdir(RWHODIR) < 0) {
-		perror(RWHODIR);
-		exit(1);
-	}
-#ifndef DEBUG
-	if (fork())
-		exit(0);
-	/* CSTYLED */
-	{
-		(void) close(0);
-		(void) close(1);
-		(void) close(2);
-		(void) open("/", 0);
-		(void) dup2(0, 1);
-		(void) dup2(0, 2);
-		(void) setsid();
-	}
-#endif
-	(void) sigset(SIGHUP, (void (*)())getkmem);
-	openlog("in.rwhod", LOG_PID, LOG_DAEMON);
-	/*
-	 * Establish host name as returned by system.
-	 */
-	if (gethostname(myname, sizeof (myname) - 1) < 0) {
-		syslog(LOG_ERR, "main: gethostname: %m");
-		exit(1);
-	}
-	if ((cp = index(myname, '.')) != NULL)
-		*cp = '\0';
-	(void) strlcpy(mywd.wd_hostname, myname, sizeof (mywd.wd_hostname));
-
-	if (stat(UTMPX_FILE, &sb) < 0) {
-		syslog(LOG_ERR, "main: stat: %s: %m", UTMPX_FILE);
-		exit(1);
-	}
-	getkmem();
-	if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
-		syslog(LOG_ERR, "main: socket: %m");
-		exit(1);
-	}
-	if (setsockopt(s, SOL_SOCKET, SO_BROADCAST, &on, sizeof (on)) < 0) {
-		syslog(LOG_ERR, "main: setsockopt SO_BROADCAST: %m");
-		exit(1);
-	}
-	hp = gethostbyname(myname);
-	if (hp == NULL) {
-		syslog(LOG_ERR, "main: %s: don't know my own name\n", myname);
-		exit(1);
-	}
-	sin.sin_family = hp->h_addrtype;
-	sin.sin_port = sp->s_port;
-	if (bind(s, (struct sockaddr *)&sin, sizeof (sin)) < 0) {
-		syslog(LOG_ERR, "main: bind: %m");
-		exit(1);
-	}
-	if (!configure(s))
-		exit(1);
-	(void) sigset(SIGALRM, (void (*)())onalrm);
-	onalrm();
-	for (;;) {
-		struct whod wd;
-		int cc, whod;
-		socklen_t len = sizeof (from);
-
-		cc = recvfrom(s, &wd, sizeof (struct whod), 0,
-		    (struct sockaddr *)&from, &len);
-		if (cc <= 0) {
-			if (cc < 0 && errno != EINTR)
-				syslog(LOG_WARNING, "main: recvfrom: %m");
-			continue;
-		}
-		if (from.sin_port != sp->s_port) {
-			syslog(LOG_WARNING, "main: %d: bad from port",
-			    ntohs(from.sin_port));
-			continue;
-		}
-#ifdef notdef
-		if (gethostbyname(wd.wd_hostname) == 0) {
-			syslog(LOG_WARNING, "main: %s: unknown host",
-			    wd.wd_hostname);
-			continue;
-		}
-#endif
-		if (wd.wd_vers != WHODVERSION)
-			continue;
-		if (wd.wd_type != WHODTYPE_STATUS)
-			continue;
-		if (!verify(&wd)) {
-			syslog(LOG_WARNING, "main: malformed host name from %x",
-			    from.sin_addr.s_addr);
-			continue;
-		}
-		(void) sprintf(path, "whod.%s", wd.wd_hostname);
-		/*
-		 * Rather than truncating and growing the file each time,
-		 * use ftruncate if size is less than previous size.
-		 */
-		whod = open(path, O_WRONLY | O_CREAT, 0644);
-		if (whod < 0) {
-			syslog(LOG_WARNING, "main: open: %s: %m", path);
-			continue;
-		}
-#if defined(_LITTLE_ENDIAN)
-		/* CSTYLED */
-		{
-			int i, n = (cc - WHDRSIZE)/sizeof (struct whoent);
-			struct whoent *we;
-
-			/* undo header byte swapping before writing to file */
-			wd.wd_sendtime = ntohl(wd.wd_sendtime);
-			for (i = 0; i < 3; i++)
-				wd.wd_loadav[i] = ntohl(wd.wd_loadav[i]);
-			wd.wd_boottime = ntohl(wd.wd_boottime);
-			we = wd.wd_we;
-			for (i = 0; i < n; i++) {
-				we->we_idle = ntohl(we->we_idle);
-				we->we_utmp.out_time =
-				    ntohl(we->we_utmp.out_time);
-				we++;
-			}
-		}
-#endif
-		(void) time((time_t *)&wd.wd_recvtime);
-		(void) write(whod, &wd, cc);
-		if (fstat(whod, &st) < 0 || st.st_size > cc)
-			(void) ftruncate(whod, cc);
-		(void) close(whod);
-	}
-	/* NOTREACHED */
-usage:
-	(void) fprintf(stderr, "usage: in.rwhod [ -m [ ttl ] ]\n");
-	return (1);
-}
-
-/*
- * Check out host name for unprintables
- * and other funnies before allowing a file
- * to be created.  Sorry, but blanks aren't allowed.
- */
-static int
-verify(const struct whod *wd)
-{
-	int size = 0;
-	const char *name = wd->wd_hostname;
-
-	/*
-	 * We shouldn't assume the name is NUL terminated, so bound the
-	 * checks at the size of the whod structures wd_hostname field.
-	 */
-	while ((size < sizeof (wd->wd_hostname)) &&
-	    (*name != '\0')) {
-		if (*name == '/' || !isascii(*name) ||
-		    !(isalnum(*name) || ispunct(*name)))
-			return (0);
-		name++, size++;
-	}
-	/*
-	 * Fail the verification if NULL name or it wasn't NUL terminated.
-	 */
-	return ((size > 0) && (size < sizeof (wd->wd_hostname)));
-}
-
-static int	utmpxtime;
-static int	utmpxent;
-static int	alarmcount;
-struct	utmpx *utmpx;
-
-static void
-onalrm(void)
-{
-	int i;
-	struct stat stb;
-	int	utmpxsize = 0;
-	int	entries;
-	struct	utmpx *utp;
-	struct	utmpx *utmpxbegin;
-	struct whoent *we = mywd.wd_we, *wlast;
-	int cc, cnt;
-	double avenrun[3];
-
-	time_t now = time(0);
-	struct neighbor *np;
-
-	if (alarmcount % 10 == 0)
-		getkmem();
-	alarmcount++;
-	(void) stat(UTMPX_FILE, &stb);
-	entries = stb.st_size / sizeof (struct futmpx);
-	if ((stb.st_mtime != utmpxtime) || (entries > utmpxent)) {
-		utmpxtime = stb.st_mtime;
-		if (entries > utmpxent) {
-			utmpxent = entries;
-			utmpxsize = utmpxent * sizeof (struct utmpx);
-			utmpx = realloc(utmpx, utmpxsize);
-			if (utmpx == NULL) {
-				syslog(LOG_ERR, "onalrm: realloc: %m");
-				utmpxsize = 0;
-				goto done;
-			}
-		}
-		utmpxbegin = utmpx;
-		setutxent();
-		cnt = 0;
-		while (cnt++ < utmpxent && (utp = getutxent()) != NULL)
-			(void) memcpy(utmpxbegin++, utp, sizeof (struct utmpx));
-		endutxent();
-		wlast = &mywd.wd_we[1024 / sizeof (struct whoent) - 1];
-		for (i = 0; i < utmpxent; i++) {
-			if (utmpx[i].ut_name[0] &&
-			    utmpx[i].ut_type == USER_PROCESS) {
-				/*
-				 * XXX - utmpx name and line lengths should
-				 * be here
-				 */
-				bcopy(utmpx[i].ut_line, we->we_utmp.out_line,
-				    sizeof (we->we_utmp.out_line));
-				bcopy(utmpx[i].ut_name, we->we_utmp.out_name,
-				    sizeof (we->we_utmp.out_name));
-				we->we_utmp.out_time =
-				    htonl(utmpx[i].ut_xtime);
-				if (we >= wlast)
-					break;
-				we++;
-			}
-		}
-		utmpxent = we - mywd.wd_we;
-	}
-
-	/*
-	 * The test on utmpxent looks silly---after all, if no one is
-	 * logged on, why worry about efficiency?---but is useful on
-	 * (e.g.) compute servers.
-	 */
-	if (utmpxent > 0 && chdir("/dev") == -1) {
-		syslog(LOG_ERR, "onalrm: chdir /dev: %m");
-		exit(1);
-	}
-	we = mywd.wd_we;
-	for (i = 0; i < utmpxent; i++) {
-		if (stat(we->we_utmp.out_line, &stb) >= 0)
-			we->we_idle = htonl(now - stb.st_atime);
-		we++;
-	}
-	if (getloadavg(avenrun, 3) == -1) {
-		syslog(LOG_ERR, "onalrm: getloadavg: %m");
-		exit(1);
-	}
-
-	for (i = 0; i < 3; i++)
-		mywd.wd_loadav[i] = htonl((ulong_t)(avenrun[i] * 100));
-	cc = (char *)we - (char *)&mywd;
-	mywd.wd_sendtime = htonl(time(0));
-	mywd.wd_vers = WHODVERSION;
-	mywd.wd_type = WHODTYPE_STATUS;
-	if (multicast_mode == SCOPED_MULTICAST) {
-		(void) sendto(s, &mywd, cc, 0,
-		    (struct sockaddr *)&multicast_addr,
-		    sizeof (multicast_addr));
-	} else for (np = neighbors; np != NULL; np = np->n_next) {
-		if (multicast_mode == PER_INTERFACE_MULTICAST &&
-		    np->n_flags & IFF_MULTICAST) {
-			/*
-			 * Select the outgoing interface for the multicast.
-			 */
-			if (setsockopt(s, IPPROTO_IP, IP_MULTICAST_IF,
-			    &(((struct sockaddr_in *)np->n_addr)->sin_addr),
-			    sizeof (struct in_addr)) < 0) {
-				syslog(LOG_ERR,
-				    "onalrm: setsockopt IP_MULTICAST_IF: %m");
-				exit(1);
-			}
-			(void) sendto(s, &mywd, cc, 0,
-			    (struct sockaddr *)&multicast_addr,
-			    sizeof (multicast_addr));
-		} else {
-			(void) sendto(s, &mywd, cc, 0,
-			    (struct sockaddr *)np->n_addr, np->n_addrlen);
-		}
-	}
-	if (utmpxent > 0 && chdir(RWHODIR) == -1) {
-		syslog(LOG_ERR, "onalrm: chdir %s: %m", RWHODIR);
-		exit(1);
-	}
-done:
-	(void) alarm(AL_INTERVAL);
-}
-
-static void
-getkmem(void)
-{
-	struct utmpx *utmpx, utmpx_id;
-
-	utmpx_id.ut_type = BOOT_TIME;
-	if ((utmpx = getutxid(&utmpx_id)) != NULL)
-		mywd.wd_boottime = utmpx->ut_xtime;
-	endutxent();
-	mywd.wd_boottime = htonl(mywd.wd_boottime);
-}
-
-/*
- * Figure out device configuration and select
- * networks which deserve status information.
- */
-static boolean_t
-configure(int s)
-{
-	char *buf;
-	struct ifconf ifc;
-	struct ifreq ifreq, *ifr;
-	struct sockaddr_in *sin;
-	struct neighbor *np;
-	struct neighbor *np2;
-	int n;
-	int numifs;
-	unsigned bufsize;
-
-	if (multicast_mode == SCOPED_MULTICAST) {
-		struct ip_mreq mreq;
-		unsigned char ttl;
-
-		mreq.imr_multiaddr.s_addr = htonl(INADDR_WHOD_GROUP);
-		mreq.imr_interface.s_addr = htonl(INADDR_ANY);
-		if (setsockopt(s, IPPROTO_IP, IP_ADD_MEMBERSHIP, &mreq,
-		    sizeof (mreq)) < 0) {
-			syslog(LOG_ERR,
-			    "configure: setsockopt IP_ADD_MEMBERSHIP: %m");
-			return (B_FALSE);
-		}
-		ttl = multicast_scope;
-		if (setsockopt(s, IPPROTO_IP, IP_MULTICAST_TTL, &ttl,
-		    sizeof (ttl)) < 0) {
-			syslog(LOG_ERR,
-			    "configure: setsockopt IP_MULTICAST_TTL: %m");
-			return (B_FALSE);
-		}
-		multicast_addr.sin_addr.s_addr = htonl(INADDR_WHOD_GROUP);
-		multicast_addr.sin_port = sp->s_port;
-		return (B_TRUE);
-	}
-
-	if (ioctl(s, SIOCGIFNUM, (char *)&numifs) < 0) {
-		syslog(LOG_ERR, "configure: ioctl SIOCGIFNUM: %m");
-		return (B_FALSE);
-	}
-	bufsize = numifs * sizeof (struct ifreq);
-	buf = malloc(bufsize);
-	if (buf == NULL) {
-		syslog(LOG_ERR, "configure: malloc: %m");
-		return (B_FALSE);
-	}
-	ifc.ifc_len = bufsize;
-	ifc.ifc_buf = buf;
-	if (ioctl(s, SIOCGIFCONF, (char *)&ifc) < 0) {
-		syslog(LOG_ERR,
-		    "configure: ioctl (get interface configuration): %m");
-		(void) free(buf);
-		return (B_FALSE);
-	}
-	ifr = ifc.ifc_req;
-	for (n = ifc.ifc_len / sizeof (struct ifreq); n > 0; n--, ifr++) {
-		/* Skip all logical interfaces */
-		if (index(ifr->ifr_name, ':') != NULL)
-			continue;
-
-		for (np = neighbors; np != NULL; np = np->n_next) {
-			if (np->n_name &&
-			    strcmp(ifr->ifr_name, np->n_name) == 0)
-				break;
-		}
-		if (np != NULL)
-			continue;
-		ifreq = *ifr;
-		np = (struct neighbor *)malloc(sizeof (*np));
-		if (np == NULL)
-			continue;
-		np->n_name = malloc(strlen(ifr->ifr_name) + 1);
-		if (np->n_name == NULL) {
-			free(np);
-			continue;
-		}
-		(void) strcpy(np->n_name, ifr->ifr_name);
-		np->n_addrlen = sizeof (ifr->ifr_addr);
-		np->n_addr = malloc(np->n_addrlen);
-		if (np->n_addr == NULL) {
-			free(np->n_name);
-			free(np);
-			continue;
-		}
-		bcopy(&ifr->ifr_addr, np->n_addr, np->n_addrlen);
-		if (ioctl(s, SIOCGIFFLAGS, (char *)&ifreq) < 0) {
-			syslog(LOG_ERR,
-			    "configure: ioctl (get interface flags): %m");
-			free(np->n_addr);
-			free(np->n_name);
-			free(np);
-			continue;
-		}
-		np->n_flags = ifreq.ifr_flags;
-		if (((struct sockaddr_in *)np->n_addr)->sin_family == AF_INET &&
-		    ioctl(s, SIOCGIFNETMASK, (char *)&ifreq) >= 0) {
-			sin = (struct sockaddr_in *)np->n_addr;
-
-			np->n_subnet = sin->sin_addr.s_addr &
-			    ((struct sockaddr_in *)&ifreq.ifr_addr)->
-			    sin_addr.s_addr;
-		}
-		if (multicast_mode == PER_INTERFACE_MULTICAST &&
-		    (np->n_flags & IFF_UP) &&
-		    (np->n_flags & IFF_MULTICAST) &&
-		    !(np->n_flags & IFF_LOOPBACK)) {
-			struct ip_mreq mreq;
-
-			/*
-			 * Skip interfaces that have matching subnets i.e.
-			 * (addr & netmask) are identical.
-			 * Such interfaces are connected to the same
-			 * physical wire.
-			 */
-			for (np2 = neighbors; np2 != NULL; np2 = np2->n_next) {
-
-				if (!(np->n_flags & IFF_POINTOPOINT) &&
-				    !(np2->n_flags & IFF_POINTOPOINT) &&
-				    (np->n_subnet == np2->n_subnet)) {
-					free(np->n_addr);
-					free(np->n_name);
-					free(np);
-					break;
-				}
-			}
-			if (np2 != NULL)
-				continue;
-
-			mreq.imr_multiaddr.s_addr = htonl(INADDR_WHOD_GROUP);
-			mreq.imr_interface.s_addr =
-			    ((struct sockaddr_in *)np->n_addr)->sin_addr.s_addr;
-			if (setsockopt(s, IPPROTO_IP, IP_ADD_MEMBERSHIP, &mreq,
-			    sizeof (mreq)) < 0) {
-				syslog(LOG_ERR,
-				    "configure: "
-				    "setsockopt IP_ADD_MEMBERSHIP: %m");
-				free(np->n_addr);
-				free(np->n_name);
-				free(np);
-				continue;
-			}
-			multicast_addr.sin_addr.s_addr =
-			    htonl(INADDR_WHOD_GROUP);
-			multicast_addr.sin_port = sp->s_port;
-			np->n_next = neighbors;
-			neighbors = np;
-			continue;
-		}
-		if ((np->n_flags & IFF_UP) == 0 ||
-		    (np->n_flags & (IFF_BROADCAST|IFF_POINTOPOINT)) == 0) {
-			free(np->n_addr);
-			free(np->n_name);
-			free(np);
-			continue;
-		}
-		if (np->n_flags & IFF_POINTOPOINT) {
-			if (ioctl(s, SIOCGIFDSTADDR, (char *)&ifreq) < 0) {
-				syslog(LOG_ERR,
-				    "configure: ioctl (get dstaddr): %m");
-				free(np->n_addr);
-				free(np->n_name);
-				free(np);
-				continue;
-			}
-			/* we assume addresses are all the same size */
-			bcopy(&ifreq.ifr_dstaddr, np->n_addr, np->n_addrlen);
-		}
-		if (np->n_flags & IFF_BROADCAST) {
-			if (ioctl(s, SIOCGIFBRDADDR, (char *)&ifreq) < 0) {
-				syslog(LOG_ERR,
-				    "configure: ioctl (get broadaddr): %m");
-				free(np->n_addr);
-				free(np->n_name);
-				free(np);
-				continue;
-			}
-			/* we assume addresses are all the same size */
-			bcopy(&ifreq.ifr_broadaddr, np->n_addr, np->n_addrlen);
-		}
-		/* gag, wish we could get rid of Internet dependencies */
-		sin = (struct sockaddr_in *)np->n_addr;
-		sin->sin_port = sp->s_port;
-
-		/*
-		 * Avoid adding duplicate broadcast and pt-pt destinations
-		 * to the list.
-		 */
-		for (np2 = neighbors; np2 != NULL; np2 = np2->n_next) {
-			struct sockaddr_in *sin2;
-
-			sin2 = (struct sockaddr_in *)np2->n_addr;
-			if (sin2->sin_addr.s_addr == sin->sin_addr.s_addr) {
-				free(np->n_addr);
-				free(np->n_name);
-				free(np);
-				break;
-			}
-		}
-		if (np2 != NULL)
-			continue;
-
-		np->n_next = neighbors;
-		neighbors = np;
-	}
-	(void) free(buf);
-	return (B_TRUE);
-}
-
-#ifdef DEBUG
-static char *interval(uint_t, char *);
-
-/* ARGSUSED */
-static ssize_t
-sendto(int s, const void *buf, size_t cc, int flags, const struct sockaddr *to,
-    socklen_t tolen)
-{
-	struct whod *w = (struct whod *)buf;
-	struct whoent *we;
-	struct sockaddr_in *sin = (struct sockaddr_in *)to;
-	int nsz;
-
-	(void) printf("sendto %x.%d\n", ntohl(sin->sin_addr.s_addr),
-	    ntohs(sin->sin_port));
-	(void) printf("hostname %s %s\n", w->wd_hostname,
-	    interval(ntohl(w->wd_sendtime) - ntohl(w->wd_boottime), "  up"));
-	(void) printf("load %4.2f, %4.2f, %4.2f\n",
-	    ntohl(w->wd_loadav[0]) / 100.0, ntohl(w->wd_loadav[1]) / 100.0,
-	    ntohl(w->wd_loadav[2]) / 100.0);
-	cc -= WHDRSIZE;
-	for (we = w->wd_we, cc /= sizeof (struct whoent); cc > 0; cc--, we++) {
-		time_t t = ntohl(we->we_utmp.out_time);
-
-		nsz = sizeof (we->we_utmp.out_name);
-		(void) printf("%-*.*s %s:%s %.12s",
-		    nsz,
-		    nsz,
-		    we->we_utmp.out_name,
-		    w->wd_hostname,
-		    we->we_utmp.out_line,
-		    ctime(&t)+4);
-		we->we_idle = ntohl(we->we_idle) / 60;
-		if (we->we_idle) {
-			if (we->we_idle >= 100*60)
-				we->we_idle = 100*60 - 1;
-			if (we->we_idle >= 60)
-				(void) printf(" %2d", we->we_idle / 60);
-			else
-				(void) printf("   ");
-			(void) printf(":%02d", we->we_idle % 60);
-		}
-		(void) printf("\n");
-	}
-	return (0);
-}
-
-static char *
-interval(uint_t time, char *updown)
-{
-	static char resbuf[32];
-	int days, hours, minutes;
-
-	if (time > 3*30*24*60*60) {
-		(void) sprintf(resbuf, "   %s ??:??", updown);
-		return (resbuf);
-	}
-	minutes = (time + 59) / 60;		/* round to minutes */
-	hours = minutes / 60;
-	minutes %= 60;
-	days = hours / 24;
-	hours %= 24;
-	if (days > 0) {
-		(void) sprintf(resbuf, "%s %2d+%02d:%02d",
-		    updown, days, hours, minutes);
-	} else {
-		(void) sprintf(resbuf, "%s    %2d:%02d",
-		    updown, hours, minutes);
-	}
-	return (resbuf);
-}
-#endif
