revert name change removal

src/game/src/questlua_pc.cpp

@@ -2063,7 +2063,64 @@ teleport_area:
 		//		3: 이미 같은 이름이 사용중
 		//		4: 성공
 		//		5: 해당 기능 지원하지 않음
-		lua_pushnumber(L, 5);
+
+		LPCHARACTER ch = CQuestManager::instance().GetCurrentCharacterPtr();
+
+		if ( ch->GetNewName().size() != 0 )
+		{
+			lua_pushnumber(L, 0);
+			return 1;
+		}
+
+		if ( lua_isstring(L, 1) != true )
+		{
+			lua_pushnumber(L, 1);
+			return 1;
+		}
+
+		const char * szName = lua_tostring(L, 1);
+
+		if ( check_name(szName) == false )
+		{
+			lua_pushnumber(L, 2);
+			return 1;
+		}
+
+		char szQuery[1024];
+		snprintf(szQuery, sizeof(szQuery), "SELECT COUNT(*) FROM player%s WHERE name='%s'", get_table_postfix(), szName);
+		std::unique_ptr<SQLMsg> pmsg(DBManager::instance().DirectQuery(szQuery));
+
+		if ( pmsg->Get()->uiNumRows > 0 )
+		{
+			MYSQL_ROW row = mysql_fetch_row(pmsg->Get()->pSQLResult);
+
+			int	count = 0;
+			str_to_number(count, row[0]);
+
+			// 이미 해당 이름을 가진 캐릭터가 있음
+			if ( count != 0 )
+			{
+				lua_pushnumber(L, 3);
+				return 1;
+			}
+		}
+
+		DWORD pid = ch->GetPlayerID();
+		db_clientdesc->DBPacketHeader(HEADER_GD_FLUSH_CACHE, 0, sizeof(DWORD));
+		db_clientdesc->Packet(&pid, sizeof(DWORD));
+
+		/* delete messenger list */
+		MessengerManager::instance().RemoveAllList(ch->GetName());
+
+		/* change_name_log */
+		LogManager::instance().ChangeNameLog(pid, ch->GetName(), szName, ch->GetDesc()->GetHostName());
+
+		snprintf(szQuery, sizeof(szQuery), "UPDATE player%s SET name='%s' WHERE id=%u", get_table_postfix(), szName, pid);
+		SQLMsg * msg = DBManager::instance().DirectQuery(szQuery);
+		M2_DELETE(msg);
+
+		ch->SetNewName(szName);
+		lua_pushnumber(L, 4);
 		return 1;
 	}