From d28ab35e7e1883ccc9ec45f2373912ccb774a402 Mon Sep 17 00:00:00 2001
From: nicm <nicm@openbsd.org>
Date: Thu, 7 Sep 2023 10:21:46 +0000
Subject: [PATCH] Use DECSLRM and DECFRA on terminals pretending to be VT520 or
 VT525 as well as VT420.

---
 usr.bin/tmux/tty-keys.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/usr.bin/tmux/tty-keys.c b/usr.bin/tmux/tty-keys.c
index dc962db923a..63d9eca5908 100644
--- a/usr.bin/tmux/tty-keys.c
+++ b/usr.bin/tmux/tty-keys.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: tty-keys.c,v 1.169 2023/09/07 07:19:21 nicm Exp $ */
+/* $OpenBSD: tty-keys.c,v 1.170 2023/09/07 10:21:46 nicm Exp $ */
 
 /*
  * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
@@ -1396,6 +1396,9 @@ tty_keys_device_attributes2(struct tty *tty, const char *buf, size_t len,
 	/* Add terminal features. */
 	switch (p[0]) {
 	case 41: /* VT420 */
+	case 61: /* VT510 */
+	case 64: /* VT520 */
+	case 65: /* VT525 */
 		tty_add_features(features, "margins,rectfill", ",");
 		break;
 	case 'M': /* mintty */
-- 
2.20.1