Grab input device to stop key events reaching terminal

input.c

@@ -18,14 +18,20 @@ static input_callback_t callbacks[NCALLBACKS];
 
 int input_init()
 {
+	memset(callbacks, 0, sizeof(callbacks));
+
 	input_fd = open("/dev/input/event0", O_RDONLY);
 	assert(input_fd != -1);
-	memset(callbacks, 0, sizeof(callbacks));
+
+	const int res = ioctl(input_fd, EVIOCGRAB, (void *)1);
+	assert(res != -1);
+
 	return input_fd;
 }
 
 void input_cleanup()
 {
+	ioctl(input_fd, EVIOCGRAB, (void *)0);
 	close(input_fd);
 }