From b0899ee26a6630883c0f2350098b6a35e647f512 Mon Sep 17 00:00:00 2001
From: "dtucker@openbsd.org" <dtucker@openbsd.org>
Date: Tue, 29 Nov 2016 03:54:50 +0000
Subject: upstream commit

Factor out code to disconnect from controlling terminal
into its own function.  ok djm@

Upstream-ID: 39fd9e8ebd7222615a837312face5cc7ae962885
---
 sshpty.c | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

(limited to 'sshpty.c')

diff --git a/sshpty.c b/sshpty.c
index b8457d913..fe2fb5aa2 100644
--- a/sshpty.c
+++ b/sshpty.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: sshpty.c,v 1.30 2015/07/30 23:09:15 djm Exp $ */
+/* $OpenBSD: sshpty.c,v 1.31 2016/11/29 03:54:50 dtucker Exp $ */
 /*
  * Author: Tatu Ylonen <ylo@cs.hut.fi>
  * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@@ -238,3 +238,17 @@ pty_setowner(struct passwd *pw, const char *tty)
 		}
 	}
 }
+
+/* Disconnect from the controlling tty. */
+void
+disconnect_controlling_tty(void)
+{
+#ifdef TIOCNOTTY
+	int fd;
+
+	if ((fd = open(_PATH_TTY, O_RDWR | O_NOCTTY)) >= 0) {
+		(void) ioctl(fd, TIOCNOTTY, NULL);
+		close(fd);
+	}
+#endif /* TIOCNOTTY */
+}
-- 
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