X-Git-Url: https://git.xinqibao.xyz/slstatus.git/blobdiff_plain/1814061396ef5855e2d1815665fc32e0902ccbe9..be12b6b350c7cf2ea826d3988371efb680b4ba30:/slstatus.c

diff --git a/slstatus.c b/slstatus.c
index 596d6a6..228c19b 100644
--- a/slstatus.c
+++ b/slstatus.c
@@ -382,6 +382,11 @@ keyboard_indicators(void)
 {
 	Display *dpy = XOpenDisplay(NULL);
 	XKeyboardState state;
+
+	if (dpy == NULL) {
+		warnx("XOpenDisplay failed");
+		return UNKNOWN_STR;
+	}
 	XGetKeyboardControl(dpy, &state);
 	XCloseDisplay(dpy);
 
@@ -879,6 +884,10 @@ main(int argc, char *argv[])
 
 	if (!sflag) {
 		dpy = XOpenDisplay(NULL);
+		if (!dpy) {
+			fprintf(stderr, "slstatus: cannot open display");
+			exit(1);
+		}
 	}
 
 	setlocale(LC_ALL, "");
@@ -905,11 +914,11 @@ main(int argc, char *argv[])
 			XSync(dpy, False);
 		}
 
-		if ((UPDATE_INTERVAL - delay) <= 0) {
+		if ((update_interval - delay) <= 0) {
 			delay = 0;
 			continue;
 		} else {
-			sleep(UPDATE_INTERVAL - delay);
+			sleep(update_interval - delay);
 			delay = 0;
 		}
 	}