Handle NULL term_type.

diff --git a/usr.bin/tmux/format.c b/usr.bin/tmux/format.c
index 5980c5d..1b97106 100644 (file)
--- a/usr.bin/tmux/format.c
+++ b/usr.bin/tmux/format.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: format.c,v 1.279 2021/02/26 21:53:41 nicm Exp $ */
+/* $OpenBSD: format.c,v 1.280 2021/02/27 06:28:16 nicm Exp $ */
 
 /*
  * Copyright (c) 2011 Nicholas Marriott <nicholas.marriott@gmail.com>
@@ -1368,8 +1368,11 @@ format_cb_client_termname(struct format_tree *ft)
 static void *
 format_cb_client_termtype(struct format_tree *ft)
 {
-       if (ft->c != NULL)
+       if (ft->c != NULL) {
+               if (ft->c->term_type == NULL)
+                       return (xstrdup(""));
                return (xstrdup(ft->c->term_type));
+       }
        return (NULL);
 }