wownero/contrib/epee/include/net/local_ip.h
2014-07-23 15:03:52 +02:00

75 lines
2.5 KiB
C++

// Copyright (c) 2014, The Monero Project
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of
// conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
// of conditions and the following disclaimer in the documentation and/or other
// materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its contributors may be
// used to endorse or promote products derived from this software without specific
// prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Parts of this file are originally copyright (c) 2006-2013, Andrey N. Sabelnikov
#pragma once
namespace epee
{
namespace net_utils
{
inline
bool is_ip_local(uint32_t ip)
{
/*
local ip area
10.0.0.0 — 10.255.255.255
172.16.0.0 — 172.31.255.255
192.168.0.0 — 192.168.255.255
*/
if( (ip | 0xffffff00) == 0xffffff0a)
return true;
if( (ip | 0xffff0000) == 0xffffa8c0)
return true;
if( (ip | 0xffffff00) == 0xffffffac)
{
uint32_t second_num = (ip << 8) & 0xff000000;
if(second_num >= 16 && second_num <= 31 )
return true;
}
return false;
}
inline
bool is_ip_loopback(uint32_t ip)
{
if( (ip | 0xffffff00) == 0xffffff7f)
return true;
//MAKE_IP
/*
loopback ip
127.0.0.0 — 127.255.255.255
*/
return false;
}
}
}