keyboard_indicators: fix segfault when -s is specified

diff --git a/slstatus.c b/slstatus.c
index 47bd4c9..aa05cd1 100644 (file)
--- a/slstatus.c
+++ b/slstatus.c
@@ -380,9 +380,15 @@ kernel_release(void)
 static const char *
 keyboard_indicators(void)
 {
+       Display *dpy = XOpenDisplay(NULL);
        XKeyboardState state;
 
+       if (dpy == NULL) {
+               warnx("XOpenDisplay failed");
+               return UNKNOWN_STR;
+       }
        XGetKeyboardControl(dpy, &state);
+       XCloseDisplay(dpy);
 
        switch (state.led_mask) {
                case 1: