From f6625e7c21bd25435f081069b349be9142caa1e8 Mon Sep 17 00:00:00 2001
From: orignal <i2porignal@yandex.ru>
Date: Sat, 1 Aug 2026 20:19:35 -0400
Subject: [PATCH] don't accept  NTCP2 version 3 and 5 if LibreSSL

---
 libi2pd/NTCP2.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libi2pd/NTCP2.cpp b/libi2pd/NTCP2.cpp
index c872a592..1ccf7edc 100644
--- a/libi2pd/NTCP2.cpp
+++ b/libi2pd/NTCP2.cpp
@@ -2286,6 +2286,9 @@ namespace transport
 	void NTCP2Server::SetVersion (int version)
 	{
 #if OPENSSL_PQ
+#ifdef LIBRESSL_VERSION_NUMBER
+	if (version == 2 || version == 5) version = 2; // 3 and 5 are not supported by LibreSSL
+#endif
         m_Version = version;
 #endif
 	}