#include <xrpl/beast/net/IPAddressV4.h>

namespace beast {
namespace IP {

bool
is_private(AddressV4 const& addr)
{
    return ((addr.to_uint() & 0xff000000) ==
            0x0a000000) ||  // Prefix /8,    10.  #.#.#
        ((addr.to_uint() & 0xfff00000) ==
         0xac100000) ||  // Prefix /12   172. 16.#.# - 172.31.#.#
        ((addr.to_uint() & 0xffff0000) ==
         0xc0a80000) ||  // Prefix /16   192.168.#.#
        addr.is_loopback();
}

bool
is_public(AddressV4 const& addr)
{
    return !is_private(addr) && !addr.is_multicast();
}

char
get_class(AddressV4 const& addr)
{
    static char const* table = "AAAABBCD";
    return table[(addr.to_uint() & 0xE0000000) >> 29];
}

}  // namespace IP
}  // namespace beast