===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/tmux/input.c,v
retrieving revision 1.167
retrieving revision 1.168
diff -u -r1.167 -r1.168
--- src/usr.bin/tmux/input.c	2019/11/28 09:50:09	1.167
+++ src/usr.bin/tmux/input.c	2020/01/28 10:59:29	1.168
@@ -1,4 +1,4 @@
-/* $OpenBSD: input.c,v 1.167 2019/11/28 09:50:09 nicm Exp $ */
+/* $OpenBSD: input.c,v 1.168 2020/01/28 10:59:29 nicm Exp $ */
 
 /*
  * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
@@ -20,6 +20,7 @@
 
 #include <netinet/in.h>
 
+#include <ctype.h>
 #include <resolv.h>
 #include <stdlib.h>
 #include <string.h>
@@ -1301,6 +1302,7 @@
 	struct input_table_entry       *entry;
 	int				i, n, m;
 	u_int				cx, bg = ictx->cell.cell.bg;
+	char			       *copy, *cp;
 
 	if (ictx->flags & INPUT_DISCARD)
 		return (0);
@@ -1431,6 +1433,13 @@
 			break;
 		case 6:
 			input_reply(ictx, "\033[%u;%uR", s->cy + 1, s->cx + 1);
+			break;
+		case 1337: /* Terminal version, from iTerm2. */
+			copy = xstrdup(getversion());
+			for (cp = copy; *cp != '\0'; cp++)
+				*cp = toupper((u_char)*cp);
+			input_reply(ictx, "\033[TMUX %sn", copy);
+			free(copy);
 			break;
 		default:
 			log_debug("%s: unknown '%c'", __func__, ictx->ch);