From e6283523f873c9dcf718d9266fb1d43c630be8a4 Mon Sep 17 00:00:00 2001
From: guenther <guenther@openbsd.org>
Date: Sun, 20 Jul 2014 04:07:16 +0000
Subject: [PATCH] The manpage claims the -a option uses getlogin(2), so do so. 
 Also, ignore its value if it returns a user that doesn't exit

---
 usr.bin/telnet/commands.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/usr.bin/telnet/commands.c b/usr.bin/telnet/commands.c
index e9fc0556a51..37c6e1eb877 100644
--- a/usr.bin/telnet/commands.c
+++ b/usr.bin/telnet/commands.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: commands.c,v 1.57 2014/07/20 04:00:47 guenther Exp $	*/
+/*	$OpenBSD: commands.c,v 1.58 2014/07/20 04:07:16 guenther Exp $	*/
 /*	$NetBSD: commands.c,v 1.14 1996/03/24 22:03:48 jtk Exp $	*/
 
 /*
@@ -2088,9 +2088,9 @@ tn(argc, argv)
     if (autologin && user == NULL) {
 	struct passwd *pw;
 
-	user = getenv("USER");
+	user = getlogin();
 	if (user == NULL ||
-	    ((pw = getpwnam(user)) && pw->pw_uid != getuid())) {
+	    (pw = getpwnam(user)) == NULL || pw->pw_uid != getuid()) {
 		if ((pw = getpwuid(getuid())) != NULL)
 			user = pw->pw_name;
 		else
-- 
2.20.1