From 8d7121b69613e72e70acf0c272dcead070def769 Mon Sep 17 00:00:00 2001
From: Andrei Karas <akaras@inbox.ru>
Date: Mon, 12 Sep 2016 17:57:04 +0300
Subject: Dont send packet 0x9cb to old clients.

---
 src/emap/clif.c | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/src/emap/clif.c b/src/emap/clif.c
index d3bf523..8bff4c7 100644
--- a/src/emap/clif.c
+++ b/src/emap/clif.c
@@ -465,6 +465,18 @@ bool eclif_send_pre(const void **bufPtr,
                     return true;
                 }
             }
+            if (packet == 0x9cb)
+            {
+                struct map_session_data *sd = BL_CAST(BL_PC, bl);
+                struct SessionExt *data = session_get_bysd(sd);
+                if (!data)
+                    return true;
+                if (data->clientVersion < 19)
+                {   // not sending new packet to old clients
+                    hookStop();
+                    return true;
+                }
+            }
         }
         return true;
     }
@@ -650,6 +662,17 @@ int eclif_send_actual_pre(int *fd,
                 return 0;
             }
         }
+        if (packet == 0x9cb)
+        {
+            struct SessionExt *data = session_get(*fd);
+            if (!data)
+                return 0;
+            if (data->clientVersion < 19)
+            {   // not sending new packets to old clients
+                hookStop();
+                return 0;
+            }
+        }
     }
     return 0;
 }
-- 
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