From 699e17b594de6ac6378c9649e97a6db973fd4c65 Mon Sep 17 00:00:00 2001
From: orignal <i2porignal@yandex.ru>
Date: Mon, 9 Sep 2024 22:26:03 -0400
Subject: [PATCH] handle plain ack with options

---
 libi2pd/Streaming.cpp | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/libi2pd/Streaming.cpp b/libi2pd/Streaming.cpp
index 4ee3eb85..d5ec57ce 100644
--- a/libi2pd/Streaming.cpp
+++ b/libi2pd/Streaming.cpp
@@ -184,10 +184,15 @@ namespace stream
 			ProcessAck (packet);
 
 		int32_t receivedSeqn = packet->GetSeqn ();
-		if (!receivedSeqn && !packet->GetFlags ())
+		if (!receivedSeqn)
 		{
-			// plain ack
-			LogPrint (eLogDebug, "Streaming: Plain ACK received");
+			uint16_t flags = packet->GetFlags ();
+			if (flags)
+				// plain ack with options
+				ProcessOptions (flags, packet);
+			else	
+				// plain ack
+				LogPrint (eLogDebug, "Streaming: Plain ACK received");
 			m_LocalDestination.DeletePacket (packet);
 			return;
 		}