From 097974bde2a7bf5efe1ec37d85db196e6a93cafa Mon Sep 17 00:00:00 2001
From: mittorn <mittorn@sibmail.com>
Date: Wed, 30 Jan 2019 13:38:32 +0700
Subject: [PATCH] Check cl_dlmax sizes on client

---
 engine/client/cl_main.c | 4 ++++
 engine/common/net_ws.c  | 3 +++
 2 files changed, 7 insertions(+)

diff --git a/engine/client/cl_main.c b/engine/client/cl_main.c
index 10513687..d71b89d8 100644
--- a/engine/client/cl_main.c
+++ b/engine/client/cl_main.c
@@ -1044,9 +1044,13 @@ void CL_SendConnectPacket( void )
 	}
 	else
 	{
+		if( cl_dlmax->value > FRAGMENT_MAX_SIZE  || cl_dlmax->value < FRAGMENT_MIN_SIZE )
+			Cvar_SetValue( "cl_dlmax", FRAGMENT_DEFAULT_SIZE );
+
 		// remove useless userinfo keys
 		Cvar_FullSet( "cl_maxpacket", "0", 0 );
 		Cvar_FullSet( "cl_maxpayload", "1000", 0 );
+
 		Info_SetValueForKey( protinfo, "uuid", key, sizeof( protinfo ));
 		Info_SetValueForKey( protinfo, "qport", qport, sizeof( protinfo ));
 		Netchan_OutOfBandPrint( NS_CLIENT, adr, "connect %i %i \"%s\" \"%s\"\n", PROTOCOL_VERSION, cls.challenge, protinfo, cls.userinfo );
diff --git a/engine/common/net_ws.c b/engine/common/net_ws.c
index 25ff6b29..24fc223e 100644
--- a/engine/common/net_ws.c
+++ b/engine/common/net_ws.c
@@ -1230,6 +1230,9 @@ qboolean NET_QueuePacket( netsrc_t sock, netadr_t *from, byte *data, size_t *len
 				// check for split message
 				if( sock == NS_CLIENT && *(int *)data == NET_HEADER_SPLITPACKET )
 				{
+					int splitsize = Cvar_VariableInteger("cl_dlmax");
+					if( splitsize < SPLITPACKET_MIN_SIZE || splitsize < SPLITPACKET_MAX_SIZE )
+						Cvar_SetValue( "cl_dlmax", MAX_ROUTEABLE_PACKET );
 					return NET_GetLong( data, ret, length, Cvar_VariableInteger("cl_dlmax") );
 				}
 #endif