From e2f791b54a7e9513bab140d728695ede919a1770 Mon Sep 17 00:00:00 2001
From: Lucio Rossi <lucio.rossi75@gmail.com>
Date: Tue, 21 Jul 2026 16:28:51 +0200
Subject: [PATCH] fix: tcp_client and udp_bridge read returning rand char on
 fail

---
 src/udp_bridge.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/udp_bridge.h b/src/udp_bridge.h
index b99a2fb..1b33ea3 100644
--- a/src/udp_bridge.h
+++ b/src/udp_bridge.h
@@ -242,6 +242,9 @@ class BridgeUDP final: public UDP {
 
     int read() override {
         uint8_t c;
+        if (!temp_buffer.available() && !available()) {
+            return -1;
+        }
         read(&c, 1);
         return c;
     }