Rearrange sources (#4997)

src/libxrpl/beast/net/IPAddressV6.cpp

@@ -0,0 +1,42 @@
+//------------------------------------------------------------------------------
+/*
+    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.
+*/
+//==============================================================================
+
+#include <ripple/beast/net/IPAddressV4.h>
+#include <ripple/beast/net/IPAddressV6.h>
+
+namespace beast {
+namespace IP {
+
+bool
+is_private(AddressV6 const& addr)
+{
+    return (
+        (addr.to_bytes()[0] & 0xfd) ||  // TODO  fc00::/8 too ?
+        (addr.is_v4_mapped() && is_private(addr.to_v4())));
+}
+
+bool
+is_public(AddressV6 const& addr)
+{
+    // TODO is this correct?
+    return !is_private(addr) && !addr.is_multicast();
+}
+
+}  // namespace IP
+}  // namespace beast