Do not repeat option name in its definition. Use .Nm. In the sequence ``~.'',

``.'' is not a sentence termination, it must be escaped to be put inside
quotes.
Abort if execv() fails by adding err(). Do not dot terminate error messages.

usr.bin/rlogin/rlogin.1

@@ -59,84 +59,68 @@ first attempts to use the Kerberos authorization mechanism, described below.
 If the remote host does not support Kerberos the standard Berkeley
 .Pa rhosts
 authorization mechanism is used.
-The options are as follows:
+.Pp
+The following options are available:
 .Bl -tag -width flag
 .It Fl 4
 Use IPv4 addresses only.
 .It Fl 6
 Use IPv6 addresses only.
 .It Fl 8
-The
-.Fl 8
-option allows an eight-bit input data path at all times; otherwise
+Allow an eight-bit input data path at all times; otherwise
 parity bits are stripped except when the remote side's stop and start
 characters are other than
 ^S/^Q.
 .It Fl D
-The
-.Fl D
-option sets the TCP_NODELAY socket option which can improve interactive response
+Set the TCP_NODELAY socket option which can improve interactive response
 at the expense of increased network load.
 .It Fl E
-The
-.Fl E
-option stops any character from being recognized as an escape character.
+Stop any character from being recognized as an escape character.
 When used with the
 .Fl 8
 option, this provides a completely transparent connection.
 .It Fl K
-The
-.Fl K
-option turns off all Kerberos authentication.
+Turn off all Kerberos authentication.
 .It Fl L
-The
-.Fl L
-option allows the rlogin session to be run in
+Allow the
+.Nm
+session to be run in
 .Dq litout
 (see
 .Xr tty 4 )
 mode.
 .It Fl d
-The
-.Fl d
-option turns on socket debugging (see
+Turn on socket debugging (see
 .Xr setsockopt 2 )
 on the TCP sockets used for communication with the remote host.
 .It Fl e
-The
-.Fl e
-option allows user specification of the escape character, which is
+Allow user specification of the escape character, which is
 .Dq ~
 by default.
 This specification may be as a literal character, or as an octal
 value in the form \ennn.
 .It Fl i
-The
-.Fl i
-option allows the caller to specify a different local name to be used
+Allow the caller to specify a different local name to be used
 for authentication.  This option is restricted to processes with uid 0.
 .It Fl k
-The
-.Fl k
-option requests rlogin to obtain tickets for the remote host
+Request
+.Nm
+to obtain tickets for the remote host
 in realm
 .Ar realm
 instead of the remote host's realm as determined by
 .Xr krb_realmofhost  3  .
 .It Fl l
-The
-.Fl l
-option specifies a different
+Specify a different
 .Ar username
 for the remote login.
 If this option is not specified, your local username will be used.
 .It Fl x
-The
-.Fl x
-option turns on
+Turn on
 .Tn DES
 encryption for all data passed via the
-rlogin session.
+.Nm
+session.
 This may impact response time and
 .Tn CPU
 utilization, but provides
@@ -144,7 +128,7 @@ increased security.
 .El
 .Pp
 A line of the form
-.Dq Aq escape char .
+.Dq Ao escape char Ac Ns \&.
 disconnects from the remote host.
 Similarly, the line
 .Dq Ao escape char Ac Ns ^Z
@@ -153,7 +137,9 @@ will suspend the
 session, and
 .Dq Ao escape\ char Ac Ns Ao delayed-suspend\ char Ac
 suspends the
-send portion of the rlogin, but allows output from the remote system.
+send portion of the
+.Nm
+session, but allows output from the remote system.
 By default, the tilde
 .Pq Dq ~
 character is the escape character, and

usr.bin/rlogin/rlogin.c

@@ -44,15 +44,18 @@ static const char copyright[] =
 	The Regents of the University of California.  All rights reserved.\n";
 #endif /* not lint */
 
+#if 0
 #ifndef lint
 static const char sccsid[] = "@(#)rlogin.c	8.1 (Berkeley) 6/6/93";
 #endif /* not lint */
+#endif
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
 
 /*
  * rlogin - remote login
  */
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
 
 #include <sys/param.h>
 #include <sys/socket.h>
@@ -314,7 +317,7 @@ main(int argc, char *argv[])
 
 			sp = getservbyname("login", "tcp");
 			if (sp == NULL)
-				errx(1, "unknown service login/tcp");
+				errx(1, "login/tcp: unknown service");
 			if (errno == ECONNREFUSED)
 				warn("remote host doesn't support Kerberos");
 			if (errno == ENOENT)
@@ -328,6 +331,7 @@ main(int argc, char *argv[])
 			newargv[i + 1] = argv[i];
 			newargv[argc + 1] = NULL;
 			execv(_PATH_RLOGIN, newargv);
+			err(1, "can't exec %s", _PATH_RLOGIN);
 		}
 	} else {
 #ifdef CRYPT
@@ -401,11 +405,11 @@ doit(long omask)
 	if (child == 0) {
 		mode(1);
 		if (reader(omask) == 0) {
-			msg("connection closed.");
+			msg("connection closed");
 			exit(0);
 		}
 		sleep(1);
-		msg("\007connection closed.");
+		msg("\007connection closed");
 		exit(1);
 	}
 
@@ -419,7 +423,7 @@ doit(long omask)
 	(void)sigsetmask(omask);
 	(void)signal(SIGCHLD, catch_child);
 	writer();
-	msg("closed connection.");
+	msg("closed connection");
 	done(0);
 }
 
@@ -835,7 +839,7 @@ void
 lostpeer(int signo __unused)
 {
 	(void)signal(SIGPIPE, SIG_IGN);
-	msg("\007connection closed.");
+	msg("\007connection closed");
 	done(1);
 }