From dbef7a7c6441322e71440a1c6a02a8b8c9b1750d Mon Sep 17 00:00:00 2001
From: Sadie Powell <sadie@witchery.services>
Date: Tue, 5 Aug 2025 13:10:16 +0100
Subject: [PATCH] Don't try to write to a buffered socket if there's no data.

This can cause the SSL modules to act weirdly because the TLS
library will return 0 bytes written (correctly) which is then
interpreted as an error.
---
 src/socket_transport.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/socket_transport.cpp b/src/socket_transport.cpp
index 287e60450..75fdd7f44 100644
--- a/src/socket_transport.cpp
+++ b/src/socket_transport.cpp
@@ -42,6 +42,9 @@ bool BufferedSocket::ProcessRead()
 
 bool BufferedSocket::ProcessWrite()
 {
+	if (this->write_buffer.empty())
+		return true;
+
 	int count = this->io->Send(this, this->write_buffer);
 	if (count == 0)
 		return false;