Rearrange sources (#4997)

include/xrpl/beast/net/IPAddressV4.h

@@ -0,0 +1,53 @@
+//------------------------------------------------------------------------------
+/*
+    This file is part of Beast: https://github.com/vinniefalco/Beast
+    Copyright 2013, Vinnie Falco <vinnie.falco@gmail.com>
+
+    Permission to use, copy, modify, and/or distribute this software for any
+    purpose  with  or without fee is hereby granted, provided that the above
+    copyright notice and this permission notice appear in all copies.
+
+    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
+    MERCHANTABILITY  AND  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+    ANY  SPECIAL ,  DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+    WHATSOEVER  RESULTING  FROM  LOSS  OF USE, DATA OR PROFITS, WHETHER IN AN
+    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+//==============================================================================
+
+#ifndef BEAST_NET_IPADDRESSV4_H_INCLUDED
+#define BEAST_NET_IPADDRESSV4_H_INCLUDED
+
+#include <ripple/beast/hash/hash_append.h>
+#include <boost/asio/ip/address_v4.hpp>
+#include <cstdint>
+#include <functional>
+#include <ios>
+#include <string>
+#include <utility>
+
+namespace beast {
+namespace IP {
+
+using AddressV4 = boost::asio::ip::address_v4;
+
+/** Returns `true` if the address is a private unroutable address. */
+bool
+is_private(AddressV4 const& addr);
+
+/** Returns `true` if the address is a public routable address. */
+bool
+is_public(AddressV4 const& addr);
+
+/** Returns the address class for the given address.
+    @note Class 'D' represents multicast addresses (224.*.*.*).
+*/
+char
+get_class(AddressV4 const& address);
+
+}  // namespace IP
+}  // namespace beast
+
+#endif