Due to risks known for decades, TIOCSTI now performs no action, and simply

returns EIO.  The base system has been cleaned of TIOCSTI uses (collaboration
between anton and I), and the ports tree appears mostly clean.  A few
stragglers may be discovered and cleaned up later...
In a month or so, we should see if the #define can be removed entirely.
ok anton tedu, support from millert

1 files changed, 4 insertions, 5 deletions

diff --git a/share/man/man4/tty.4 b/share/man/man4/tty.4
index 1a03c2a7812..d7174600c0a 100644
--- a/share/man/man4/tty.4
+++ b/share/man/man4/tty.4
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: tty.4,v 1.47 2016/11/26 11:18:43 mpi Exp $
+.\"	$OpenBSD: tty.4,v 1.48 2017/06/29 04:10:07 deraadt Exp $
 .\"	$NetBSD: tty.4,v 1.4 1996/03/19 04:26:01 paulus Exp $
 .\"
 .\" Copyright (c) 1991, 1992, 1993
@@ -30,7 +30,7 @@
 .\"
 .\"     @(#)tty.4	8.3 (Berkeley) 4/19/94
 .\"
-.Dd $Mdocdate: November 26 2016 $
+.Dd $Mdocdate: June 29 2017 $
 .Dt TTY 4
 .Os
 .Sh NAME
@@ -276,9 +276,8 @@ Place the current number of characters in the output queue in the
 integer pointed to by
 .Fa num .
 .It Dv TIOCSTI Fa char *cp
-Simulate typed input.
-Pretend as if the terminal received the character pointed to by
-.Fa cp .
+Performs no action and returns
+.Er EIO .
 .It Dv TIOCNOTTY Fa void
 This call is obsolete but left for compatibility.
 In the past, when a process that didn't have a controlling terminal