From ea9111c2488ba9ff3c48a2a373474e5db28d94e1 Mon Sep 17 00:00:00 2001
From: folkert van heusden <mail@vanheusden.com>
Date: Sat, 11 Jun 2022 11:54:15 +0200
Subject: [PATCH] do not accept empty filenames

---
 ESP32/main.ino | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/ESP32/main.ino b/ESP32/main.ino
index 99f6159..97d52fd 100644
--- a/ESP32/main.ino
+++ b/ESP32/main.ino
@@ -123,6 +123,9 @@ std::pair<std::vector<std::string>, std::vector<std::string> > select_disk_files
 
 		std::string selected_file = c->read_line("Enter filename: ");
 
+		if (selected_file.empty())
+			continue;
+
 		c->put_string("1. RK05, 2. RL02, 3. re-select file");
 
 		int ch = -1;