only insert key if printable

1 files changed, 3 insertions, 3 deletions

diff --git a/dmenu-wl.c b/dmenu-wl.c
index a3d30ae..436d0bb 100644
--- a/dmenu-wl.c
+++ b/dmenu-wl.c
@@ -413,8 +413,6 @@ handle_keyboard_event()
 	char buf[8];
 	int genmatch = 0;
 
-	xkb_keysym_to_utf8(client.keys.sym, buf, sizeof(buf));
-
 	if (client.keys.state == WL_KEYBOARD_KEY_STATE_PRESSED) {
 		switch (client.keys.sym) {
 			case XKB_KEY_KP_Enter: /* fallthrough */
@@ -431,7 +429,9 @@ handle_keyboard_event()
 				genmatch = 1;
 				break;
 			default:
-				strncpy(input_field + strlen(input_field), buf, MAX_LINE_LENGTH - strlen(input_field));
+				if (xkb_keysym_to_utf8(client.keys.sym, buf, sizeof(buf))) {
+					strncpy(input_field + strlen(input_field), buf, MAX_LINE_LENGTH - strlen(input_field));
+				}
 				genmatch = 1;
 				break;
 		}