Remove rcmds.

If they are still needed, you can find them in the net/bsdrcmds port.

This was proposed June, 20th and approved by various committers [1].
They have been marked as deprecated on CURRENT in r320644 [2] on July, 4th.
Both stable/11 and release/11.1 contain the deprecation notice (thanks to
allanjude@).

Note that ruptime(1)/rwho(1)/rwhod(8) were initially thought to be part of
rcmds but this was a mistake and those are therefore NOT removed.

[1] https://lists.freebsd.org/pipermail/freebsd-arch/2017-June/018239.html
[2] https://svnweb.freebsd.org/base?view=revision&revision=320644

Reviewed by:	bapt, brooks
Differential Revision:	https://reviews.freebsd.org/D12573

9 files changed, 0 insertions, 1776 deletions

diff --git a/libexec/Makefile b/libexec/Makefile
index 5c6130a18db6..37983f2069d0 100644
--- a/libexec/Makefile
+++ b/libexec/Makefile
@@ -79,11 +79,6 @@ _rtld-elf=	rtld-elf
 SUBDIR+=	rbootd
 .endif
 
-.if ${MK_RCMDS} != "no"
-_rlogind=	rlogind
-_rshd=		rshd
-.endif
-
 .if ${MK_SENDMAIL} != "no"
 _mail.local=	mail.local
 _smrsh=		smrsh
diff --git a/libexec/rlogind/Makefile b/libexec/rlogind/Makefile
deleted file mode 100644
index 626b2e7457dd..000000000000
--- a/libexec/rlogind/Makefile
+++ /dev/null
@@ -1,23 +0,0 @@
-#	@(#)Makefile	8.1 (Berkeley) 6/4/93
-# $FreeBSD$
-
-.include <src.opts.mk>
-
-PACKAGE=rcmds
-PROG=	rlogind
-MAN=	rlogind.8
-PACKAGE=rcmds
-LIBADD=	util
-WARNS?=	2
-
-.if ${MK_INET6_SUPPORT} != "no"
-CFLAGS+= -DINET6
-.endif
-
-.if ${MK_BLACKLIST_SUPPORT} != "no"
-CFLAGS+= -DUSE_BLACKLIST -I${SRCTOP}/contrib/blacklist/include
-LIBADD+= blacklist
-LDFLAGS+=-L${LIBBLACKLISTDIR}
-.endif
-
-.include <bsd.prog.mk>
diff --git a/libexec/rlogind/Makefile.depend b/libexec/rlogind/Makefile.depend
deleted file mode 100644
index 5ac9545f6f12..000000000000
--- a/libexec/rlogind/Makefile.depend
+++ /dev/null
@@ -1,22 +0,0 @@
-# $FreeBSD$
-# Autogenerated - do NOT edit!
-
-DIRDEPS = \
-	gnu/lib/csu \
-	gnu/lib/libgcc \
-	include \
-	include/arpa \
-	include/xlocale \
-	lib/${CSU_DIR} \
-	lib/libblacklist \
-	lib/libc \
-	lib/libcompiler_rt \
-	lib/libthr \
-	lib/libutil \
-
-
-.include <dirdeps.mk>
-
-.if ${DEP_RELDIR} == ${_DEP_RELDIR}
-# local dependencies - needed for -jN in clean tree
-.endif
diff --git a/libexec/rlogind/rlogind.8 b/libexec/rlogind/rlogind.8
deleted file mode 100644
index 09ec8b5000a3..000000000000
--- a/libexec/rlogind/rlogind.8
+++ /dev/null
@@ -1,202 +0,0 @@
-.\" Copyright (c) 1983, 1989, 1991, 1993
-.\"	The Regents of the University of California.  All rights reserved.
-.\"
-.\" Redistribution and use in source and binary forms, with or without
-.\" modification, are permitted provided that 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.
-.\"
-.\"     @(#)rlogind.8	8.1 (Berkeley) 6/4/93
-.\" $FreeBSD$
-.\"
-.Dd July 3, 2017
-.Dt RLOGIND 8
-.Os
-.Sh NAME
-.Nm rlogind
-.Nd remote login server
-.Sh SYNOPSIS
-.Nm
-.Op Fl Daln
-.Sh DEPRECATION NOTICE
-.Nm
-is deprecated and will be removed from future versions of the
-.Fx
-base system.
-If
-.Nm
-is still required, it can be installed from ports or packages
-(net/bsdrcmds).
-.Sh DESCRIPTION
-The
-.Nm
-utility is the server for the
-.Xr rlogin 1
-program.
-The server provides a remote login facility
-with authentication based on privileged port numbers from trusted hosts.
-.Pp
-Options supported by
-.Nm :
-.Bl -tag -width indent
-.It Fl D
-Set TCP_NODELAY socket option.
-This improves responsiveness at the expense of
-some additional network traffic.
-.It Fl a
-Ask hostname for verification.
-.It Fl l
-Prevent any authentication based on the user's
-.Dq Pa .rhosts
-file, unless the user is logging in as the superuser.
-.It Fl n
-Disable keep-alive messages.
-.El
-.Pp
-The
-.Nm
-utility listens for service requests at the port indicated in
-the
-.Dq login
-service specification; see
-.Xr services 5 .
-When a service request is received the following protocol
-is initiated:
-.Bl -enum
-.It
-The server checks the client's source port.
-If the port is not in the range 512-1023, the server
-aborts the connection.
-.It
-The server checks the client's source address
-and requests the corresponding host name (see
-.Xr gethostbyaddr 3 ,
-.Xr hosts 5
-and
-.Xr named 8 ) .
-If the hostname cannot be determined,
-the dot-notation representation of the host address is used.
-If the hostname is in the same domain as the server (according to
-the last two components of the domain name),
-or if the
-.Fl a
-option is given,
-the addresses for the hostname are requested,
-verifying that the name and address correspond.
-Normal authentication is bypassed if the address verification fails.
-.El
-.Pp
-Once the source port and address have been checked,
-.Nm
-proceeds with the authentication process described in
-.Xr rshd 8 .
-It then allocates a pseudo terminal (see
-.Xr pty 4 ) ,
-and manipulates file descriptors so that the slave
-half of the pseudo terminal becomes the
-.Em stdin ,
-.Em stdout ,
-and
-.Em stderr
-for a login process.
-The login process is an instance of the
-.Xr login 1
-program, invoked with the
-.Fl f
-option if authentication has succeeded.
-If automatic authentication fails, the user is
-prompted to log in as if on a standard terminal line.
-.Pp
-The parent of the login process manipulates the master side of
-the pseudo terminal, operating as an intermediary
-between the login process and the client instance of the
-.Xr rlogin 1
-program.
-In normal operation, the packet protocol described
-in
-.Xr pty 4
-is invoked to provide
-.Ql ^S/^Q
-type facilities and propagate
-interrupt signals to the remote programs.
-The login process
-propagates the client terminal's baud rate and terminal type,
-as found in the environment variable,
-.Ev TERM ;
-see
-.Xr environ 7 .
-The screen or window size of the terminal is requested from the client,
-and window size changes from the client are propagated to the pseudo terminal.
-.Pp
-Transport-level keepalive messages are enabled unless the
-.Fl n
-option is present.
-The use of keepalive messages allows sessions to be timed out
-if the client crashes or becomes unreachable.
-.Sh FILES
-.Bl -tag -width /etc/hostsxxxxxxxx -compact
-.It Pa /etc/hosts
-.It Pa /etc/hosts.equiv
-.It Ev $HOME Ns Pa /.rhosts
-.It Pa /var/run/nologin
-.El
-.Sh DIAGNOSTICS
-All initial diagnostic messages are indicated
-by a leading byte with a value of 1,
-after which any network connections are closed.
-If there are no errors before
-.Xr login 1
-is invoked, a null byte is returned as in indication of success.
-.Bl -tag -width Ds
-.It Sy Try again.
-A
-.Xr fork 2
-by the server failed.
-.El
-.Sh SEE ALSO
-.Xr login 1 ,
-.Xr ruserok 3 ,
-.Xr hosts 5 ,
-.Xr hosts.equiv 5 ,
-.Xr login.conf 5 ,
-.Xr nologin 5 ,
-.Xr services 5 ,
-.Xr rshd 8
-.Sh HISTORY
-The
-.Nm
-utility appeared in
-.Bx 4.2 .
-.Pp
-IPv6 support was added by WIDE/KAME project.
-.Sh BUGS
-The authentication procedure used here assumes the integrity
-of each client machine and the connecting medium.
-This is
-insecure, but is useful in an
-.Dq open
-environment.
-.Pp
-A facility to allow all data exchanges to be encrypted should be
-present.
-.Pp
-A more extensible protocol should be used.
diff --git a/libexec/rlogind/rlogind.c b/libexec/rlogind/rlogind.c
deleted file mode 100644
index 7ddcfe2a180c..000000000000
--- a/libexec/rlogind/rlogind.c
+++ /dev/null
@@ -1,583 +0,0 @@
-/*-
- * Copyright (c) 1983, 1988, 1989, 1993
- *	The Regents of the University of California.  All rights reserved.
- * Copyright (c) 2002 Networks Associates Technology, Inc.
- * All rights reserved.
- *
- * Portions of this software were developed for the FreeBSD Project by
- * ThinkSec AS and NAI Labs, the Security Research Division of Network
- * Associates, Inc.  under DARPA/SPAWAR contract N66001-01-C-8035
- * ("CBOSS"), as part of the DARPA CHATS research program.
- *
- * 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 const char copyright[] =
-"@(#) Copyright (c) 1983, 1988, 1989, 1993\n\
-	The Regents of the University of California.  All rights reserved.\n";
-#endif /* not lint */
-
-#ifndef lint
-static const char sccsid[] = "@(#)rlogind.c	8.1 (Berkeley) 6/4/93";
-#endif /* not lint */
-#endif
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-/*
- * remote login server:
- *	\0
- *	remuser\0
- *	locuser\0
- *	terminal_type/speed\0
- *	data
- */
-
-#define	FD_SETSIZE	16		/* don't need many bits for select */
-#include <sys/types.h>
-#include <sys/param.h>
-#include <sys/stat.h>
-#include <sys/ioctl.h>
-#include <signal.h>
-#include <termios.h>
-
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <netinet/in_systm.h>
-#include <netinet/ip.h>
-#include <netinet/tcp.h>
-#include <arpa/inet.h>
-#include <netdb.h>
-
-#include <errno.h>
-#include <libutil.h>
-#include <paths.h>
-#include <poll.h>
-#include <pwd.h>
-#include <syslog.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#ifdef USE_BLACKLIST
-#include <blacklist.h>
-#endif
-
-#ifndef TIOCPKT_WINDOW
-#define TIOCPKT_WINDOW 0x80
-#endif
-
-#define		ARGSTR			"Daln"
-
-char	*env[2];
-#define	NMAX 30
-char	lusername[NMAX+1], rusername[NMAX+1];
-static	char term[64] = "TERM=";
-#define	ENVSIZE	(sizeof("TERM=")-1)	/* skip null for concatenation */
-int	keepalive = 1;
-int	check_all = 0;
-int	no_delay;
-
-struct	passwd *pwd;
-
-union sockunion {
-	struct sockinet {
-		u_char si_len;
-		u_char si_family;
-		u_short si_port;
-	} su_si;
-	struct sockaddr_in  su_sin;
-	struct sockaddr_in6 su_sin6;
-};
-#define su_len		su_si.si_len
-#define su_family	su_si.si_family
-#define su_port		su_si.si_port
-
-void	doit(int, union sockunion *);
-int	control(int, char *, int);
-void	protocol(int, int);
-void	cleanup(int);
-void	fatal(int, char *, int);
-int	do_rlogin(union sockunion *);
-void	getstr(char *, int, char *);
-void	setup_term(int);
-int	do_krb_login(struct sockaddr_in *);
-void	usage(void);
-
-
-int
-main(int argc, char *argv[])
-{
-	extern int __check_rhosts_file;
-	union sockunion from;
-	socklen_t fromlen;
-	int ch, on;
-
-	openlog("rlogind", LOG_PID | LOG_CONS, LOG_AUTH);
-
-	opterr = 0;
-	while ((ch = getopt(argc, argv, ARGSTR)) != -1)
-		switch (ch) {
-		case 'D':
-			no_delay = 1;
-			break;
-		case 'a':
-			check_all = 1;
-			break;
-		case 'l':
-			__check_rhosts_file = 0;
-			break;
-		case 'n':
-			keepalive = 0;
-			break;
-		case '?':
-		default:
-			usage();
-			break;
-		}
-	argc -= optind;
-	argv += optind;
-
-	fromlen = sizeof (from);
-	if (getpeername(0, (struct sockaddr *)&from, &fromlen) < 0) {
-		syslog(LOG_ERR,"Can't get peer name of remote host: %m");
-		fatal(STDERR_FILENO, "Can't get peer name of remote host", 1);
-	}
-	on = 1;
-	if (keepalive &&
-	    setsockopt(0, SOL_SOCKET, SO_KEEPALIVE, &on, sizeof (on)) < 0)
-		syslog(LOG_WARNING, "setsockopt (SO_KEEPALIVE): %m");
-	if (no_delay &&
-	    setsockopt(0, IPPROTO_TCP, TCP_NODELAY, &on, sizeof(on)) < 0)
-		syslog(LOG_WARNING, "setsockopt (TCP_NODELAY): %m");
-	if (from.su_family == AF_INET)
-      {
-	on = IPTOS_LOWDELAY;
-	if (setsockopt(0, IPPROTO_IP, IP_TOS, (char *)&on, sizeof(int)) < 0)
-		syslog(LOG_WARNING, "setsockopt (IP_TOS): %m");
-      }
-
-	doit(0, &from);
-	return 0;
-}
-
-int	child;
-int	netf;
-char	line[MAXPATHLEN];
-int	confirmed;
-
-struct winsize win = { 0, 0, 0, 0 };
-
-
-void
-doit(int f, union sockunion *fromp)
-{
-	int master, pid, on = 1;
-	int authenticated = 0;
-	char hostname[2 * MAXHOSTNAMELEN + 1];
-	char nameinfo[2 * INET6_ADDRSTRLEN + 1];
-	char c;
-
-	alarm(60);
-	read(f, &c, 1);
-
-	if (c != 0)
-		exit(1);
-
-	alarm(0);
-
-	realhostname_sa(hostname, sizeof(hostname) - 1,
-			    (struct sockaddr *)fromp, fromp->su_len);
-	/* error check ? */
-	fromp->su_port = ntohs((u_short)fromp->su_port);
-	hostname[sizeof(hostname) - 1] = '\0';
-
-	{
-		if ((fromp->su_family != AF_INET
-#ifdef INET6
-		  && fromp->su_family != AF_INET6
-#endif
-		     ) ||
-		    fromp->su_port >= IPPORT_RESERVED ||
-		    fromp->su_port < IPPORT_RESERVED/2) {
-			getnameinfo((struct sockaddr *)fromp,
-				    fromp->su_len,
-				    nameinfo, sizeof(nameinfo), NULL, 0,
-				    NI_NUMERICHOST);
-			/* error check ? */
-			syslog(LOG_NOTICE, "Connection from %s on illegal port",
-			       nameinfo);
-#ifdef USE_BLACKLIST
-			blacklist(1, STDIN_FILENO, "illegal port");
-#endif
-			fatal(f, "Permission denied", 0);
-		}
-#ifdef IP_OPTIONS
-		if (fromp->su_family == AF_INET)
-	      {
-		u_char optbuf[BUFSIZ/3];
-		socklen_t optsize = sizeof(optbuf);
-		int ipproto, i;
-		struct protoent *ip;
-
-		if ((ip = getprotobyname("ip")) != NULL)
-			ipproto = ip->p_proto;
-		else
-			ipproto = IPPROTO_IP;
-		if (getsockopt(0, ipproto, IP_OPTIONS, (char *)optbuf,
-		    &optsize) == 0 && optsize != 0) {
-			for (i = 0; i < optsize; ) {
-				u_char c = optbuf[i];
-				if (c == IPOPT_LSRR || c == IPOPT_SSRR) {
-					syslog(LOG_NOTICE,
-						"Connection refused from %s with IP option %s",
-						inet_ntoa(fromp->su_sin.sin_addr),
-						c == IPOPT_LSRR ? "LSRR" : "SSRR");
-#ifdef USE_BLACKLIST
-					blacklist(1, STDIN_FILENO, "source routing present");
-#endif
-					exit(1);
-				}
-				if (c == IPOPT_EOL)
-					break;
-				i += (c == IPOPT_NOP) ? 1 : optbuf[i+1];
-			}
-		}
-	      }
-#endif
-		if (do_rlogin(fromp) == 0)
-			authenticated++;
-	}
-	if (confirmed == 0) {
-		write(f, "", 1);
-		confirmed = 1;		/* we sent the null! */
-	}
-	netf = f;
-
-	pid = forkpty(&master, line, NULL, &win);
-	if (pid < 0) {
-		if (errno == ENOENT)
-			fatal(f, "Out of ptys", 0);
-		else
-			fatal(f, "Forkpty", 1);
-	}
-	if (pid == 0) {
-		if (f > 2)	/* f should always be 0, but... */
-			(void) close(f);
-		setup_term(0);
-		if (*lusername=='-') {
-			syslog(LOG_ERR, "tried to pass user \"%s\" to login",
-			       lusername);
-#ifdef USE_BLACKLIST
-			blacklist(1, STDIN_FILENO, "invalid user");
-#endif
-			fatal(STDERR_FILENO, "invalid user", 0);
-		}
-#ifdef USE_BLACKLIST
-		blacklist(0, STDIN_FILENO, "success");
-#endif
-		if (authenticated) {
-			execl(_PATH_LOGIN, "login", "-p",
-			    "-h", hostname, "-f", lusername, (char *)NULL);
-		} else
-			execl(_PATH_LOGIN, "login", "-p",
-			    "-h", hostname, lusername, (char *)NULL);
-		fatal(STDERR_FILENO, _PATH_LOGIN, 1);
-		/*NOTREACHED*/
-	}
-	ioctl(f, FIONBIO, &on);
-	ioctl(master, FIONBIO, &on);
-	ioctl(master, TIOCPKT, &on);
-	signal(SIGCHLD, cleanup);
-	protocol(f, master);
-	signal(SIGCHLD, SIG_IGN);
-	cleanup(0);
-}
-
-char	magic[2] = { 0377, 0377 };
-char	oobdata[] = {TIOCPKT_WINDOW};
-
-/*
- * Handle a "control" request (signaled by magic being present)
- * in the data stream.  For now, we are only willing to handle
- * window size changes.
- */
-int
-control(int pty, char *cp, int n)
-{
-	struct winsize w;
-
-	if (n < 4 + (int)sizeof(w) || cp[2] != 's' || cp[3] != 's')
-		return (0);
-	oobdata[0] &= ~TIOCPKT_WINDOW;	/* we know he heard */
-	bcopy(cp+4, (char *)&w, sizeof(w));
-	w.ws_row = ntohs(w.ws_row);
-	w.ws_col = ntohs(w.ws_col);
-	w.ws_xpixel = ntohs(w.ws_xpixel);
-	w.ws_ypixel = ntohs(w.ws_ypixel);
-	(void)ioctl(pty, TIOCSWINSZ, &w);
-	return (4+sizeof (w));
-}
-
-/*
- * rlogin "protocol" machine.
- */
-void
-protocol(int f, int p)
-{
-	char pibuf[1024+1], fibuf[1024], *pbp = NULL, *fbp = NULL;
-	int pcc = 0, fcc = 0;
-	int cc, nfd, n;
-	char cntl;
-
-	/*
-	 * Must ignore SIGTTOU, otherwise we'll stop
-	 * when we try and set slave pty's window shape
-	 * (our controlling tty is the master pty).
-	 */
-	(void) signal(SIGTTOU, SIG_IGN);
-	send(f, oobdata, 1, MSG_OOB);	/* indicate new rlogin */
-	if (f > p)
-		nfd = f + 1;
-	else
-		nfd = p + 1;
-	for (;;) {
-		struct pollfd set[2];
-
-		set[0].fd = p;
-		set[0].events = POLLPRI;
-		set[1].fd = f;
-		set[1].events = 0;
-		if (fcc)
-			set[0].events |= POLLOUT;
-		else
-			set[1].events |= POLLIN;
-		if (pcc >= 0) {
-			if (pcc)
-				set[1].events |= POLLOUT;
-			else
-				set[0].events |= POLLIN;
-		}
-		if ((n = poll(set, 2, INFTIM)) < 0) {
-			if (errno == EINTR)
-				continue;
-			fatal(f, "poll", 1);
-		}
-		if (n == 0) {
-			/* shouldn't happen... */
-			sleep(5);
-			continue;
-		}
-#define	pkcontrol(c)	((c)&(TIOCPKT_FLUSHWRITE|TIOCPKT_NOSTOP|TIOCPKT_DOSTOP))
-		if (set[0].revents & POLLPRI) {
-			cc = read(p, &cntl, 1);
-			if (cc == 1 && pkcontrol(cntl)) {
-				cntl |= oobdata[0];
-				send(f, &cntl, 1, MSG_OOB);
-				if (cntl & TIOCPKT_FLUSHWRITE)
-					pcc = 0;
-			}
-		}
-		if (set[1].revents & POLLIN) {
-			fcc = read(f, fibuf, sizeof(fibuf));
-			if (fcc < 0 && errno == EWOULDBLOCK)
-				fcc = 0;
-			else {
-				char *cp;
-				int left, n;
-
-				if (fcc <= 0)
-					break;
-				fbp = fibuf;
-
-			top:
-				for (cp = fibuf; cp < fibuf+fcc-1; cp++)
-					if (cp[0] == magic[0] &&
-					    cp[1] == magic[1]) {
-						left = fcc - (cp-fibuf);
-						n = control(p, cp, left);
-						if (n) {
-							left -= n;
-							if (left > 0)
-								bcopy(cp+n, cp, left);
-							fcc -= n;
-							goto top; /* n^2 */
-						}
-					}
-			}
-		}
-
-		if (set[0].revents & POLLOUT && fcc > 0) {
-			cc = write(p, fbp, fcc);
-			if (cc > 0) {
-				fcc -= cc;
-				fbp += cc;
-			}
-		}
-
-		if (set[0].revents & POLLIN) {
-			pcc = read(p, pibuf, sizeof (pibuf));
-			pbp = pibuf;
-			if (pcc < 0 && errno == EWOULDBLOCK)
-				pcc = 0;
-			else if (pcc <= 0)
-				break;
-			else if (pibuf[0] == 0) {
-				pbp++, pcc--;
-			} else {
-				if (pkcontrol(pibuf[0])) {
-					pibuf[0] |= oobdata[0];
-					send(f, &pibuf[0], 1, MSG_OOB);
-				}
-				pcc = 0;
-			}
-		}
-		if (set[1].revents & POLLOUT && pcc > 0) {
-			cc = write(f, pbp, pcc);
-			if (cc > 0) {
-				pcc -= cc;
-				pbp += cc;
-			}
-		}
-	}
-}
-
-void
-cleanup(int signo __unused)
-{
-
-	shutdown(netf, SHUT_RDWR);
-	exit(1);
-}
-
-void
-fatal(int f, char *msg, int syserr)
-{
-	int len;
-	char buf[BUFSIZ], *bp = buf;
-
-	/*
-	 * Prepend binary one to message if we haven't sent
-	 * the magic null as confirmation.
-	 */
-	if (!confirmed)
-		*bp++ = '\01';		/* error indicator */
-	if (syserr)
-		len = snprintf(bp, sizeof(buf), "rlogind: %s: %s.\r\n",
-		    msg, strerror(errno));
-	else
-		len = snprintf(bp, sizeof(buf), "rlogind: %s.\r\n", msg);
-	if (len < 0)
-		len = 0;
-	(void) write(f, buf, bp + len - buf);
-	exit(1);
-}
-
-int
-do_rlogin(union sockunion *dest)
-{
-
-	getstr(rusername, sizeof(rusername), "remuser too long");
-	getstr(lusername, sizeof(lusername), "locuser too long");
-	getstr(term+ENVSIZE, sizeof(term)-ENVSIZE, "Terminal type too long");
-
-	pwd = getpwnam(lusername);
-	if (pwd == NULL)
-		return (-1);
-	/* XXX why don't we syslog() failure? */
-
-	return (iruserok_sa(dest, dest->su_len, pwd->pw_uid == 0, rusername,
-			    lusername));
-}
-
-void
-getstr(char *buf, int cnt, char *errmsg)
-{
-	char c;
-
-	do {
-		if (read(STDIN_FILENO, &c, 1) != 1)
-			exit(1);
-		if (--cnt < 0) {
-#ifdef USE_BLACKLIST
-			blacklist(1, STDIN_FILENO, "buffer overflow");
-#endif
-			fatal(STDOUT_FILENO, errmsg, 0);
-		}
-		*buf++ = c;
-	} while (c != 0);
-}
-
-extern	char **environ;
-
-void
-setup_term(int fd)
-{
-	char *cp;
-	char *speed;
-	struct termios tt, def;
-
-	cp = strchr(term + ENVSIZE, '/');
-#ifndef notyet
-	tcgetattr(fd, &tt);
-	if (cp) {
-		*cp++ = '\0';
-		speed = cp;
-		cp = strchr(speed, '/');
-		if (cp)
-			*cp++ = '\0';
-		cfsetspeed(&tt, atoi(speed));
-	}
-
-	cfmakesane(&def);
-	tt.c_iflag = def.c_iflag;
-	tt.c_oflag = def.c_oflag;
-	tt.c_lflag = def.c_lflag;
-	tcsetattr(fd, TCSAFLUSH, &tt);
-#else
-	if (cp) {
-		*cp++ = '\0';
-		speed = cp;
-		cp = strchr(speed, '/');
-		if (cp)
-			*cp++ = '\0';
-		tcgetattr(fd, &tt);
-		cfsetspeed(&tt, atoi(speed));
-		tcsetattr(fd, TCSAFLUSH, &tt);
-	}
-#endif
-
-	env[0] = term;
-	env[1] = 0;
-	environ = env;
-}
-
-void
-usage(void)
-{
-	syslog(LOG_ERR, "usage: rlogind [-" ARGSTR "]");
-}
diff --git a/libexec/rshd/Makefile b/libexec/rshd/Makefile
deleted file mode 100644
index 924f2eff81b7..000000000000
--- a/libexec/rshd/Makefile
+++ /dev/null
@@ -1,24 +0,0 @@
-# From:	@(#)Makefile	8.1 (Berkeley) 6/4/93
-# $FreeBSD$
-
-PACKAGE=rcmds
-
-.include <src.opts.mk>
-
-PROG=	rshd
-MAN=	rshd.8
-
-PACKAGE=rcmds
-
-WARNS?=	3
-WFORMAT=0
-
-LIBADD=	util pam
-
-.if ${MK_BLACKLIST_SUPPORT} != "no"
-CFLAGS+= -DUSE_BLACKLIST -I${SRCTOP}/contrib/blacklist/include
-LIBADD+= blacklist
-LDFLAGS+=-L${LIBBLACKLISTDIR}
-.endif
-
-.include <bsd.prog.mk>
diff --git a/libexec/rshd/Makefile.depend b/libexec/rshd/Makefile.depend
deleted file mode 100644
index 289484837f9a..000000000000
--- a/libexec/rshd/Makefile.depend
+++ /dev/null
@@ -1,23 +0,0 @@
-# $FreeBSD$
-# Autogenerated - do NOT edit!
-
-DIRDEPS = \
-	gnu/lib/csu \
-	gnu/lib/libgcc \
-	include \
-	include/arpa \
-	include/xlocale \
-	lib/${CSU_DIR} \
-	lib/libblacklist \
-	lib/libc \
-	lib/libcompiler_rt \
-	lib/libpam/libpam \
-	lib/libthr \
-	lib/libutil \
-
-
-.include <dirdeps.mk>
-
-.if ${DEP_RELDIR} == ${_DEP_RELDIR}
-# local dependencies - needed for -jN in clean tree
-.endif
diff --git a/libexec/rshd/rshd.8 b/libexec/rshd/rshd.8
deleted file mode 100644
index 700c2ed0b59c..000000000000
--- a/libexec/rshd/rshd.8
+++ /dev/null
@@ -1,277 +0,0 @@
-.\" Copyright (c) 1983, 1989, 1991, 1993
-.\"	The Regents of the University of California.  All rights reserved.
-.\"
-.\" Redistribution and use in source and binary forms, with or without
-.\" modification, are permitted provided that 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.
-.\"
-.\"     @(#)rshd.8	8.1 (Berkeley) 6/4/93
-.\" $FreeBSD$
-.\"
-.Dd July 3, 2017
-.Dt RSHD 8
-.Os
-.Sh NAME
-.Nm rshd
-.Nd remote shell server
-.Sh SYNOPSIS
-.Nm
-.Op Fl aDLln
-.Sh DEPRECATION NOTICE
-.Nm
-is deprecated and will be removed from future versions of the
-.Fx
-base system.
-If
-.Nm
-is still required, it can be installed from ports or packages
-(net/bsdrcmds).
-.Sh DESCRIPTION
-The
-.Nm
-utility
-is the server for the
-.Xr rcmd 3
-routine and, consequently, for the
-.Xr rsh 1
-utility.
-The server provides remote execution facilities
-with authentication based on privileged port numbers from trusted hosts.
-.Pp
-The
-.Nm
-utility listens for service requests at the port indicated in
-the
-.Dq cmd
-service specification; see
-.Xr services 5 .
-When a service request is received the following protocol
-is initiated:
-.Bl -enum
-.It
-The server checks the client's source port.
-If the port is not in the range 512-1023, the server
-aborts the connection.
-.It
-The server reads characters from the socket up
-to a
-.Tn NUL
-(`\e0') byte.
-The resultant string is
-interpreted as an
-.Tn ASCII
-number, base 10.
-.It
-If the number received in step 2 is non-zero,
-it is interpreted as the port number of a secondary
-stream to be used for the
-.Em stderr .
-A second connection is then created to the specified
-port on the client's machine.
-The source port of this
-second connection is also in the range 512-1023.
-.It
-The server checks the client's source address
-and requests the corresponding host name (see
-.Xr gethostbyaddr 3 ,
-.Xr hosts 5
-and
-.Xr named 8 ) .
-If the hostname cannot be determined or the hostname and address do
-not match after verification,
-the dot-notation representation of the host address is used.
-.It
-A null terminated user name of at most 16 characters
-is retrieved on the initial socket.
-This user name
-is interpreted as the user identity on the
-.Em client Ns 's
-machine.
-.It
-A null terminated user name of at most 16 characters
-is retrieved on the initial socket.
-This user name
-is interpreted as a user identity to use on the
-.Em server Ns 's
-machine.
-.It
-A null terminated command to be passed to a
-shell is retrieved on the initial socket.
-The length of
-the command is limited by the upper bound on the size of
-the system's argument list.
-.It
-The
-.Nm
-utility then validates the user using
-.Xr ruserok 3 ,
-which uses the file
-.Pa /etc/hosts.equiv
-and the
-.Pa .rhosts
-file found in the user's home directory.
-The
-.Fl l
-option prevents
-.Xr ruserok 3
-from doing any validation based on the user's
-.Pa .rhosts
-file,
-unless the user is the superuser.
-.It
-A
-.Tn NUL
-byte is returned on the initial socket
-and the command line is passed to the normal login
-shell of the user.
-The
-shell inherits the network connections established
-by
-.Nm .
-.El
-.Pp
-The options are as follows:
-.Bl -tag -width indent
-.It Fl a
-This flag is ignored, and is present for compatibility purposes.
-.It Fl D
-Sets the TCP_NODELAY socket option, which improves the performance
-of small back-to-back writes at the expense of additional network
-traffic.
-.It Fl L
-Causes all successful accesses to be logged to
-.Xr syslogd 8
-as
-.Li auth.info
-messages.
-.It Fl l
-Do not use the user's
-.Pa .rhosts
-file for authentication, unless the user is the superuser.
-.It Fl n
-Turn off transport level keepalive messages.
-This will prevent sessions
-from timing out if the client crashes or becomes unreachable.
-.El
-.Sh FILES
-.Bl -tag -width /var/run/nologin -compact
-.It Pa /etc/hosts
-.It Pa /etc/hosts.equiv
-.It Pa /etc/login.conf
-.It Ev $HOME Ns Pa /.rhosts
-.Pp
-.It Pa /etc/pam.conf
-.Nm
-uses
-.Pa /etc/pam.conf
-entries with service name
-.Dq rsh .
-Authentication modules requiring passwords (such as
-.Nm pam_unix )
-are not supported.
-.El
-.Sh DIAGNOSTICS
-Except for the last one listed below,
-all diagnostic messages
-are returned on the initial socket,
-after which any network connections are closed.
-An error is indicated by a leading byte with a value of
-1 (0 is returned in step 10 above upon successful completion
-of all the steps prior to the execution of the login shell).
-.Bl -tag -width indent
-.It Sy Locuser too long.
-The name of the user on the client's machine is
-longer than 16 characters.
-.It Sy Ruser too long.
-The name of the user on the remote machine is
-longer than 16 characters.
-.It Sy Command too long.
-The command line passed exceeds the size of the argument
-list (as configured into the system).
-.It Sy Login incorrect.
-No password file entry for the user name existed
-or the authentication procedure described above failed.
-.It Sy Remote directory.
-The
-.Xr chdir 2
-function to the home directory failed.
-.It Sy Logins not available right now.
-The
-.Xr rsh 1
-utility was attempted outside the allowed hours defined in
-.Pa /etc/login.conf
-for the local user's login class.
-.It Sy Can't make pipe.
-The pipe needed for the
-.Em stderr ,
-was not created.
-.It Sy Can't fork; try again.
-A
-.Xr fork 2
-by the server failed.
-.It Sy <shellname>: ...
-The user's login shell could not be started.
-This message is returned
-on the connection associated with the
-.Em stderr ,
-and is not preceded by a flag byte.
-.El
-.Sh SEE ALSO
-.Xr rlogin 1 ,
-.Xr rsh 1 ,
-.Xr gethostbyaddr 3 ,
-.Xr rcmd 3 ,
-.Xr ruserok 3 ,
-.Xr hosts 5 ,
-.Xr hosts.equiv 5 ,
-.Xr login.conf 5 ,
-.Xr services 5 ,
-.Xr named 8 ,
-.Xr rlogind 8 ,
-.Xr syslogd 8
-.Sh HISTORY
-IPv6 support was added by WIDE/KAME project.
-.Sh BUGS
-The authentication procedure used here assumes the integrity
-of each client machine and the connecting medium.
-This is
-insecure, but is useful in an
-.Dq open
-environment.
-.Pp
-A facility to allow all data exchanges to be encrypted should be
-present.
-.Pp
-Post-PAM,
-.Fx
-also needs the following patch applied besides properly configuring
-.Pa .rhosts :
-.Bd -literal -offset indent
---- etc/pam.d/rsh.orig  Wed Dec 17 14:36:20 2003
-+++ etc/pam.d/rsh       Wed Dec 17 14:30:43 2003
-@@ -9 +9 @@
--auth	required	pam_rhosts.so	no_warn
-+auth	required	pam_rhosts.so	no_warn	allow_root
-.Ed
-.Pp
-A more extensible protocol (such as Telnet) should be used.
diff --git a/libexec/rshd/rshd.c b/libexec/rshd/rshd.c
deleted file mode 100644
index 3dcdea80a955..000000000000
--- a/libexec/rshd/rshd.c
+++ /dev/null
@@ -1,617 +0,0 @@
-/*-
- * Copyright (c) 1988, 1989, 1992, 1993, 1994
- *	The Regents of the University of California.  All rights reserved.
- * Copyright (c) 2002 Networks Associates Technology, Inc.
- * All rights reserved.
- *
- * Portions of this software were developed for the FreeBSD Project by
- * ThinkSec AS and NAI Labs, the Security Research Division of Network
- * Associates, Inc.  under DARPA/SPAWAR contract N66001-01-C-8035
- * ("CBOSS"), as part of the DARPA CHATS research program.
- *
- * 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.
- */
-
-#ifndef lint
-static const char copyright[] =
-"@(#) Copyright (c) 1988, 1989, 1992, 1993, 1994\n\
-	The Regents of the University of California.  All rights reserved.\n";
-#endif /* not lint */
-
-#ifndef lint
-#if 0
-static const char sccsid[] = "@(#)rshd.c	8.2 (Berkeley) 4/6/94";
-#endif
-#endif /* not lint */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-/*
- * remote shell server:
- *	[port]\0
- *	ruser\0
- *	luser\0
- *	command\0
- *	data
- */
-#include <sys/param.h>
-#include <sys/ioctl.h>
-#include <sys/time.h>
-#include <sys/socket.h>
-
-#include <netinet/in_systm.h>
-#include <netinet/in.h>
-#include <netinet/ip.h>
-#include <netinet/tcp.h>
-#include <arpa/inet.h>
-#include <netdb.h>
-
-#include <err.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <libutil.h>
-#include <paths.h>
-#include <pwd.h>
-#include <signal.h>
-#include <stdarg.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <syslog.h>
-#include <unistd.h>
-#include <login_cap.h>
-
-#include <security/pam_appl.h>
-#include <security/openpam.h>
-#include <sys/wait.h>
-
-#ifdef USE_BLACKLIST
-#include <blacklist.h>
-#endif
-
-static struct pam_conv pamc = { openpam_nullconv, NULL };
-static pam_handle_t *pamh;
-static int pam_err;
-
-#define PAM_END { \
-	if ((pam_err = pam_setcred(pamh, PAM_DELETE_CRED)) != PAM_SUCCESS) \
-		syslog(LOG_ERR|LOG_AUTH, "pam_setcred(): %s", pam_strerror(pamh, pam_err)); \
-	if ((pam_err = pam_close_session(pamh,0)) != PAM_SUCCESS) \
-		syslog(LOG_ERR|LOG_AUTH, "pam_close_session(): %s", pam_strerror(pamh, pam_err)); \
-	if ((pam_err = pam_end(pamh, pam_err)) != PAM_SUCCESS) \
-		syslog(LOG_ERR|LOG_AUTH, "pam_end(): %s", pam_strerror(pamh, pam_err)); \
-}
-
-int	keepalive = 1;
-int	log_success;		/* If TRUE, log all successful accesses */
-int	sent_null;
-int	no_delay;
-
-void	 doit(struct sockaddr *);
-static void	 rshd_errx(int, const char *, ...) __printf0like(2, 3);
-void	 getstr(char *, int, const char *);
-int	 local_domain(char *);
-char	*topdomain(char *);
-void	 usage(void);
-
-char	 slash[] = "/";
-char	 bshell[] = _PATH_BSHELL;
-
-#define	OPTIONS	"aDLln"
-
-int
-main(int argc, char *argv[])
-{
-	extern int __check_rhosts_file;
-	struct linger linger;
-	socklen_t fromlen;
-	int ch, on = 1;
-	struct sockaddr_storage from;
-
-	openlog("rshd", LOG_PID, LOG_DAEMON);
-
-	opterr = 0;
-	while ((ch = getopt(argc, argv, OPTIONS)) != -1)
-		switch (ch) {
-		case 'a':
-			/* ignored for compatibility */
-			break;
-		case 'l':
-			__check_rhosts_file = 0;
-			break;
-		case 'n':
-			keepalive = 0;
-			break;
-		case 'D':
-			no_delay = 1;
-			break;
-		case 'L':
-			log_success = 1;
-			break;
-		case '?':
-		default:
-			usage();
-			break;
-		}
-
-	argc -= optind;
-	argv += optind;
-
-	fromlen = sizeof (from);
-	if (getpeername(0, (struct sockaddr *)&from, &fromlen) < 0) {
-		syslog(LOG_ERR, "getpeername: %m");
-		exit(1);
-	}
-	if (keepalive &&
-	    setsockopt(0, SOL_SOCKET, SO_KEEPALIVE, (char *)&on,
-	    sizeof(on)) < 0)
-		syslog(LOG_WARNING, "setsockopt (SO_KEEPALIVE): %m");
-	linger.l_onoff = 1;
-	linger.l_linger = 60;			/* XXX */
-	if (setsockopt(0, SOL_SOCKET, SO_LINGER, (char *)&linger,
-	    sizeof (linger)) < 0)
-		syslog(LOG_WARNING, "setsockopt (SO_LINGER): %m");
-	if (no_delay &&
-	    setsockopt(0, IPPROTO_TCP, TCP_NODELAY, &on, sizeof(on)) < 0)
-		syslog(LOG_WARNING, "setsockopt (TCP_NODELAY): %m");
-	doit((struct sockaddr *)&from);
-	/* NOTREACHED */
-	return(0);
-}
-
-extern char **environ;
-
-void
-doit(struct sockaddr *fromp)
-{
-	extern char *__rcmd_errstr;	/* syslog hook from libc/net/rcmd.c. */
-	struct passwd *pwd;
-	u_short port;
-	fd_set ready, readfrom;
-	int cc, nfd, pv[2], pid, s;
-	int one = 1;
-	const char *cp, *errorstr;
-	char sig, buf[BUFSIZ];
-	char *cmdbuf, luser[16], ruser[16];
-	char rhost[2 * MAXHOSTNAMELEN + 1];
-	char numericname[INET6_ADDRSTRLEN];
-	int af, srcport;
-	int maxcmdlen;
-	login_cap_t *lc;
-
-	maxcmdlen = (int)sysconf(_SC_ARG_MAX);
-	if (maxcmdlen <= 0 || (cmdbuf = malloc(maxcmdlen)) == NULL)
-		exit(1);
-
-	(void) signal(SIGINT, SIG_DFL);
-	(void) signal(SIGQUIT, SIG_DFL);
-	(void) signal(SIGTERM, SIG_DFL);
-	af = fromp->sa_family;
-	srcport = ntohs(*((in_port_t *)&fromp->sa_data));
-	if (af == AF_INET) {
-		inet_ntop(af, &((struct sockaddr_in *)fromp)->sin_addr,
-		    numericname, sizeof numericname);
-	} else if (af == AF_INET6) {
-		inet_ntop(af, &((struct sockaddr_in6 *)fromp)->sin6_addr,
-		    numericname, sizeof numericname);
-	} else {
-		syslog(LOG_ERR, "malformed \"from\" address (af %d)", af);
-		exit(1);
-	}
-#ifdef IP_OPTIONS
-	if (af == AF_INET) {
-		u_char optbuf[BUFSIZ/3];
-		socklen_t optsize = sizeof(optbuf), ipproto, i;
-		struct protoent *ip;
-
-		if ((ip = getprotobyname("ip")) != NULL)
-			ipproto = ip->p_proto;
-		else
-			ipproto = IPPROTO_IP;
-		if (!getsockopt(0, ipproto, IP_OPTIONS, optbuf, &optsize) &&
-		    optsize != 0) {
-			for (i = 0; i < optsize; ) {
-				u_char c = optbuf[i];
-				if (c == IPOPT_LSRR || c == IPOPT_SSRR) {
-					syslog(LOG_NOTICE,
-					    "connection refused from %s with IP option %s",
-					    numericname,
-					    c == IPOPT_LSRR ? "LSRR" : "SSRR");
-					exit(1);
-				}
-				if (c == IPOPT_EOL)
-					break;
-				i += (c == IPOPT_NOP) ? 1 : optbuf[i+1];
-			}
-		}
-	}
-#endif
-
-	if (srcport >= IPPORT_RESERVED ||
-	    srcport < IPPORT_RESERVED/2) {
-		syslog(LOG_NOTICE|LOG_AUTH,
-		    "connection from %s on illegal port %u",
-		    numericname,
-		    srcport);
-#ifdef USE_BLACKLIST
-		blacklist(1, STDIN_FILENO, "illegal port");
-#endif
-		exit(1);
-	}
-
-	(void) alarm(60);
-	port = 0;
-	s = 0;		/* not set or used if port == 0 */
-	for (;;) {
-		char c;
-		if ((cc = read(STDIN_FILENO, &c, 1)) != 1) {
-			if (cc < 0)
-				syslog(LOG_NOTICE, "read: %m");
-			shutdown(0, SHUT_RDWR);
-			exit(1);
-		}
-		if (c == 0)
-			break;
-		port = port * 10 + c - '0';
-	}
-
-	(void) alarm(0);
-	if (port != 0) {
-		int lport = IPPORT_RESERVED - 1;
-		s = rresvport_af(&lport, af);
-		if (s < 0) {
-			syslog(LOG_ERR, "can't get stderr port: %m");
-			exit(1);
-		}
-		if (port >= IPPORT_RESERVED ||
-		    port < IPPORT_RESERVED/2) {
-			syslog(LOG_NOTICE|LOG_AUTH,
-			    "2nd socket from %s on unreserved port %u",
-			    numericname,
-			    port);
-#ifdef USE_BLACKLIST
-			blacklist(1, STDIN_FILENO, "unreserved port");
-#endif
-			exit(1);
-		}
-		*((in_port_t *)&fromp->sa_data) = htons(port);
-		if (connect(s, fromp, fromp->sa_len) < 0) {
-			syslog(LOG_INFO, "connect second port %d: %m", port);
-			exit(1);
-		}
-	}
-
-	errorstr = NULL;
-	realhostname_sa(rhost, sizeof(rhost) - 1, fromp, fromp->sa_len);
-	rhost[sizeof(rhost) - 1] = '\0';
-	/* XXX truncation! */
-
-	(void) alarm(60);
-	getstr(ruser, sizeof(ruser), "ruser");
-	getstr(luser, sizeof(luser), "luser");
-	getstr(cmdbuf, maxcmdlen, "command");
-	(void) alarm(0);
-
-	pam_err = pam_start("rsh", luser, &pamc, &pamh);
-	if (pam_err != PAM_SUCCESS) {
-		syslog(LOG_ERR|LOG_AUTH, "pam_start(): %s",
-		    pam_strerror(pamh, pam_err));
-#ifdef USE_BLACKLIST
-		blacklist(1, STDIN_FILENO, "login incorrect");
-#endif
-		rshd_errx(1, "Login incorrect.");
-	}
-
-	if ((pam_err = pam_set_item(pamh, PAM_RUSER, ruser)) != PAM_SUCCESS ||
-	    (pam_err = pam_set_item(pamh, PAM_RHOST, rhost)) != PAM_SUCCESS) {
-		syslog(LOG_ERR|LOG_AUTH, "pam_set_item(): %s",
-		    pam_strerror(pamh, pam_err));
-#ifdef USE_BLACKLIST
-		blacklist(1, STDIN_FILENO, "login incorrect");
-#endif
-		rshd_errx(1, "Login incorrect.");
-	}
-
-	pam_err = pam_authenticate(pamh, 0);
-	if (pam_err == PAM_SUCCESS) {
-		if ((pam_err = pam_get_user(pamh, &cp, NULL)) == PAM_SUCCESS) {
-			strlcpy(luser, cp, sizeof(luser));
-			/* XXX truncation! */
-		}
-		pam_err = pam_acct_mgmt(pamh, 0);
-	}
-	if (pam_err != PAM_SUCCESS) {
-		syslog(LOG_INFO|LOG_AUTH,
-		    "%s@%s as %s: permission denied (%s). cmd='%.80s'",
-		    ruser, rhost, luser, pam_strerror(pamh, pam_err), cmdbuf);
-#ifdef USE_BLACKLIST
-		blacklist(1, STDIN_FILENO, "permission denied");
-#endif
-		rshd_errx(1, "Login incorrect.");
-	}
-
-	setpwent();
-	pwd = getpwnam(luser);
-	if (pwd == NULL) {
-		syslog(LOG_INFO|LOG_AUTH,
-		    "%s@%s as %s: unknown login. cmd='%.80s'",
-		    ruser, rhost, luser, cmdbuf);
-#ifdef USE_BLACKLIST
-		blacklist(1, STDIN_FILENO, "unknown login");
-#endif
-		if (errorstr == NULL)
-			errorstr = "Login incorrect.";
-		rshd_errx(1, errorstr, rhost);
-	}
-
-	lc = login_getpwclass(pwd);
-	if (pwd->pw_uid)
-		auth_checknologin(lc);
-
-	if (chdir(pwd->pw_dir) < 0) {
-		if (chdir("/") < 0 ||
-		    login_getcapbool(lc, "requirehome", !!pwd->pw_uid)) {
-			syslog(LOG_INFO|LOG_AUTH,
-			"%s@%s as %s: no home directory. cmd='%.80s'",
-			ruser, rhost, luser, cmdbuf);
-			rshd_errx(0, "No remote home directory.");
-		}
-		pwd->pw_dir = slash;
-	}
-
-	if (lc != NULL && fromp->sa_family == AF_INET) {	/*XXX*/
-		char	remote_ip[MAXHOSTNAMELEN];
-
-		strlcpy(remote_ip, numericname, sizeof(remote_ip));
-		/* XXX truncation! */
-		if (!auth_hostok(lc, rhost, remote_ip)) {
-			syslog(LOG_INFO|LOG_AUTH,
-			    "%s@%s as %s: permission denied (%s). cmd='%.80s'",
-			    ruser, rhost, luser, __rcmd_errstr,
-			    cmdbuf);
-#ifdef USE_BLACKLIST
-			blacklist(1, STDIN_FILENO, "permission denied");
-#endif
-			rshd_errx(1, "Login incorrect.");
-		}
-		if (!auth_timeok(lc, time(NULL)))
-			rshd_errx(1, "Logins not available right now");
-	}
-
-	/*
-	 * PAM modules might add supplementary groups in
-	 * pam_setcred(), so initialize them first.
-	 * But we need to open the session as root.
-	 */
-	if (setusercontext(lc, pwd, pwd->pw_uid, LOGIN_SETGROUP) != 0) {
-		syslog(LOG_ERR, "setusercontext: %m");
-		exit(1);
-	}
-
-	if ((pam_err = pam_open_session(pamh, 0)) != PAM_SUCCESS) {
-		syslog(LOG_ERR, "pam_open_session: %s", pam_strerror(pamh, pam_err));
-	} else if ((pam_err = pam_setcred(pamh, PAM_ESTABLISH_CRED)) != PAM_SUCCESS) {
-		syslog(LOG_ERR, "pam_setcred: %s", pam_strerror(pamh, pam_err));
-	}
-
-	(void) write(STDERR_FILENO, "\0", 1);
-	sent_null = 1;
-
-	if (port) {
-		if (pipe(pv) < 0)
-			rshd_errx(1, "Can't make pipe.");
-		pid = fork();
-		if (pid == -1)
-			rshd_errx(1, "Can't fork; try again.");
-		if (pid) {
-			(void) close(0);
-			(void) close(1);
-			(void) close(2);
-			(void) close(pv[1]);
-
-			FD_ZERO(&readfrom);
-			FD_SET(s, &readfrom);
-			FD_SET(pv[0], &readfrom);
-			if (pv[0] > s)
-				nfd = pv[0];
-			else
-				nfd = s;
-				ioctl(pv[0], FIONBIO, (char *)&one);
-
-			/* should set s nbio! */
-			nfd++;
-			do {
-				ready = readfrom;
-				if (select(nfd, &ready, (fd_set *)0,
-				  (fd_set *)0, (struct timeval *)0) < 0)
-					break;
-				if (FD_ISSET(s, &ready)) {
-					int	ret;
-						ret = read(s, &sig, 1);
-				if (ret <= 0)
-					FD_CLR(s, &readfrom);
-				else
-					killpg(pid, sig);
-				}
-				if (FD_ISSET(pv[0], &ready)) {
-					errno = 0;
-					cc = read(pv[0], buf, sizeof(buf));
-					if (cc <= 0) {
-						shutdown(s, SHUT_RDWR);
-						FD_CLR(pv[0], &readfrom);
-					} else {
-						(void)write(s, buf, cc);
-					}
-				}
-
-			} while (FD_ISSET(s, &readfrom) ||
-			    FD_ISSET(pv[0], &readfrom));
-			PAM_END;
-			exit(0);
-		}
-		(void) close(s);
-		(void) close(pv[0]);
-		dup2(pv[1], 2);
-		close(pv[1]);
-	}
-	else {
-		pid = fork();
-		if (pid == -1)
-			rshd_errx(1, "Can't fork; try again.");
-		if (pid) {
-			/* Parent. */
-			while (wait(NULL) > 0 || errno == EINTR)
-				/* nothing */ ;
-			PAM_END;
-			exit(0);
-		}
-	}
-
-#ifdef USE_BLACKLIST
-	blacklist(0, STDIN_FILENO, "success");
-#endif
-	closefrom(3);
-	if (setsid() == -1)
-		syslog(LOG_ERR, "setsid() failed: %m");
-	if (setlogin(pwd->pw_name) < 0)
-		syslog(LOG_ERR, "setlogin() failed: %m");
-
-	if (*pwd->pw_shell == '\0')
-		pwd->pw_shell = bshell;
-	(void) pam_setenv(pamh, "HOME", pwd->pw_dir, 1);
-	(void) pam_setenv(pamh, "SHELL", pwd->pw_shell, 1);
-	(void) pam_setenv(pamh, "USER", pwd->pw_name, 1);
-	(void) pam_setenv(pamh, "PATH", _PATH_DEFPATH, 1);
-	environ = pam_getenvlist(pamh);
-	(void) pam_end(pamh, pam_err);
-	cp = strrchr(pwd->pw_shell, '/');
-	if (cp)
-		cp++;
-	else
-		cp = pwd->pw_shell;
-
-	if (setusercontext(lc, pwd, pwd->pw_uid,
-		LOGIN_SETALL & ~LOGIN_SETGROUP) < 0) {
-		syslog(LOG_ERR, "setusercontext(): %m");
-		exit(1);
-	}
-	login_close(lc);
-	endpwent();
-	if (log_success || pwd->pw_uid == 0) {
-		    syslog(LOG_INFO|LOG_AUTH, "%s@%s as %s: cmd='%.80s'",
-			ruser, rhost, luser, cmdbuf);
-	}
-	execl(pwd->pw_shell, cp, "-c", cmdbuf, (char *)NULL);
-	err(1, "%s", pwd->pw_shell);
-	exit(1);
-}
-
-/*
- * Report error to client.  Note: can't be used until second socket has
- * connected to client, or older clients will hang waiting for that
- * connection first.
- */
-
-static void
-rshd_errx(int errcode, const char *fmt, ...)
-{
-	va_list ap;
-
-	va_start(ap, fmt);
-
-	if (sent_null == 0)
-		write(STDERR_FILENO, "\1", 1);
-
-	verrx(errcode, fmt, ap);
-	/* NOTREACHED */
-}
-
-void
-getstr(char *buf, int cnt, const char *error)
-{
-	char c;
-
-	do {
-		if (read(STDIN_FILENO, &c, 1) != 1)
-			exit(1);
-		*buf++ = c;
-		if (--cnt == 0) {
-#ifdef USE_BLACKLIST
-			blacklist(1, STDIN_FILENO, "buffer overflow");
-#endif
-			rshd_errx(1, "%s too long", error);
-		}
-	} while (c != 0);
-}
-
-/*
- * Check whether host h is in our local domain,
- * defined as sharing the last two components of the domain part,
- * or the entire domain part if the local domain has only one component.
- * If either name is unqualified (contains no '.'),
- * assume that the host is local, as it will be
- * interpreted as such.
- */
-int
-local_domain(char *h)
-{
-	char localhost[MAXHOSTNAMELEN];
-	char *p1, *p2;
-
-	localhost[0] = 0;
-	(void) gethostname(localhost, sizeof(localhost) - 1);
-	localhost[sizeof(localhost) - 1] = '\0';
-	/* XXX truncation! */
-	p1 = topdomain(localhost);
-	p2 = topdomain(h);
-	if (p1 == NULL || p2 == NULL || !strcasecmp(p1, p2))
-		return (1);
-	return (0);
-}
-
-char *
-topdomain(char *h)
-{
-	char *p, *maybe = NULL;
-	int dots = 0;
-
-	for (p = h + strlen(h); p >= h; p--) {
-		if (*p == '.') {
-			if (++dots == 2)
-				return (p);
-			maybe = p;
-		}
-	}
-	return (maybe);
-}
-
-void
-usage(void)
-{
-
-	syslog(LOG_ERR, "usage: rshd [-%s]", OPTIONS);
-	exit(2);
-}