From a3e26a21a7d18a0f469f9bf170a0024933a21a19 Mon Sep 17 00:00:00 2001
From: Alibek Omarov <a1ba.omarov@gmail.com>
Date: Mon, 21 Oct 2024 02:30:45 +0300
Subject: [PATCH] engine: common: net_chan: as we expect pfnBlockSize to be
 always set, use it to determine if netchan was initialized or not

---
 engine/common/net_chan.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/engine/common/net_chan.c b/engine/common/net_chan.c
index fe2d1dd8..f6f0d275 100644
--- a/engine/common/net_chan.c
+++ b/engine/common/net_chan.c
@@ -1521,6 +1521,9 @@ void Netchan_TransmitBits( netchan_t *chan, int length, byte *data )
 		return;
 	}
 
+	if( chan->pfnBlockSize == NULL ) // not initialized
+		return;
+
 	// if the remote side dropped the last reliable message, resend it
 	send_reliable = false;