From c94b16d11e20fbfecf6f69da057e63dfc0c2d312 Mon Sep 17 00:00:00 2001
From: Andrei Karas <akaras@inbox.ru>
Date: Wed, 19 Apr 2017 23:58:08 +0300
Subject: Drop support for client protocol version 4 (Jan 5  2015).

---
 src/elogin/parse.c |  4 ++--
 src/emap/clif.c    | 12 ------------
 src/emap/send.c    |  2 +-
 3 files changed, 3 insertions(+), 15 deletions(-)

diff --git a/src/elogin/parse.c b/src/elogin/parse.c
index 6a1052d..1db2dbd 100644
--- a/src/elogin/parse.c
+++ b/src/elogin/parse.c
@@ -34,7 +34,7 @@ void login_parse_version(int fd)
 
     clientVersion = RFIFOL(fd, 2);
 
-    if (clientVersion < 4)
+    if (clientVersion < 5)
     {
         lclif->login_error(fd, 5);
         return;
@@ -58,7 +58,7 @@ bool elogin_client_login_pre(int *fdPtr,
     char username[NAME_LENGTH];
     safestrncpy(username, RFIFOP(fd, 6), NAME_LENGTH);
     int len = (int)safestrnlen(username, NAME_LENGTH);
-    if (clientVersion < 4)
+    if (clientVersion < 5)
     {
         lclif->login_error(fd, 5);
         hookStop();
diff --git a/src/emap/clif.c b/src/emap/clif.c
index 7d75a85..6adb50b 100644
--- a/src/emap/clif.c
+++ b/src/emap/clif.c
@@ -551,18 +551,6 @@ int eclif_send_actual_pre(int *fd,
     if (*len >= 2)
     {
         const int packet = RBUFW (buf, 0);
-        if (packet == 0xb0b)
-        {
-            struct SessionExt *data = session_get(*fd);
-            if (!data)
-                return 0;
-            if (data->clientVersion < 5)
-            {   // not sending new packets to old clients
-//                ShowWarning("skip packet %d\n", packet);
-                hookStop();
-                return 0;
-            }
-        }
         if (packet == 0x1d7)
         {
             struct SessionExt *data = session_get(*fd);
diff --git a/src/emap/send.c b/src/emap/send.c
index c3b9478..ea02817 100644
--- a/src/emap/send.c
+++ b/src/emap/send.c
@@ -226,7 +226,7 @@ void send_npc_info(struct block_list* bl1,
     if (tsd)
     {
         struct SessionExt *tdata = session_get_bysd(tsd);
-        if (!tdata || tdata->clientVersion < 5)
+        if (!tdata)
             return;
     }
 
-- 
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