From 23a9bf91fc75a208b62e8c8a3ce8e5e5bb42ef36 Mon Sep 17 00:00:00 2001
From: Andrei Karas <akaras@inbox.ru>
Date: Wed, 16 Aug 2017 19:41:24 +0300
Subject: Load evol packet offset from first packet from server.

---
 src/client.cpp                | 2 ++
 src/net/eathena/loginrecv.cpp | 7 ++++++-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/client.cpp b/src/client.cpp
index ef0e5af31..d67b58dce 100644
--- a/src/client.cpp
+++ b/src/client.cpp
@@ -180,6 +180,7 @@ LoginData loginData;
 Client *client = nullptr;
 
 extern FPSmanager fpsManager;
+extern int evolPacketOffset;
 
 volatile bool runCounters;
 bool isSafeMode = false;
@@ -1961,6 +1962,7 @@ void Client::unloadData()
     serverVersion = 0;
     packetVersion = 0;
     tmwServerVersion = 0;
+    evolPacketOffset = 0;
 }
 
 void Client::runValidate()
diff --git a/src/net/eathena/loginrecv.cpp b/src/net/eathena/loginrecv.cpp
index b9abf20aa..555d1a2c1 100644
--- a/src/net/eathena/loginrecv.cpp
+++ b/src/net/eathena/loginrecv.cpp
@@ -45,6 +45,7 @@
 #include "debug.h"
 
 extern int packetVersion;
+extern int evolPacketOffset;
 
 namespace EAthena
 {
@@ -153,7 +154,7 @@ void LoginRecv::processUpdateHost2(Net::MessageIn &msg)
 
 void LoginRecv::processServerVersion(Net::MessageIn &msg)
 {
-    msg.readInt16("len");
+    const int len = msg.readInt16("len");
     msg.readInt32("unused");
     serverVersion = msg.readInt32("server version");
     if (serverVersion > 0)
@@ -167,6 +168,10 @@ void LoginRecv::processServerVersion(Net::MessageIn &msg)
             logger->log("autofix Hercules packet version to: %d",
                 packetVersion);
         }
+        if (serverVersion >= 16 && len >= 18)
+        {
+            evolPacketOffset = msg.readInt16("evol packet offset");
+        }
     }
     else
     {
-- 
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