// Helper function to determine if an address falls within one of the reserved ranges
// For V4:
// Class A "10.*", Class B "172.[16->31].*", Class C "192.168.*"
bool p2p::isPrivateAddress(bi::address const& _addressToCheck)
{
if (_addressToCheck.is_v4())
{
bi::address_v4 v4Address = _addressToCheck.to_v4();
bi::address_v4::bytes_type bytesToCheck = v4Address.to_bytes();
if (bytesToCheck[0] == 10 || bytesToCheck[0] == 127)
return true;
if (bytesToCheck[0] == 172 && (bytesToCheck[1] >= 16 && bytesToCheck[1] <= 31))
return true;
if (bytesToCheck[0] == 192 && bytesToCheck[1] == 168)
return true;
}
else if (_addressToCheck.is_v6())
{
bi::address_v6 v6Address = _addressToCheck.to_v6();
bi::address_v6::bytes_type bytesToCheck = v6Address.to_bytes();
if (bytesToCheck[0] == 0xfd && bytesToCheck[1] == 0)
return true;
if (!bytesToCheck[0] && !bytesToCheck[1] && !bytesToCheck[2] && !bytesToCheck[3] && !bytesToCheck[4] && !bytesToCheck[5] && !bytesToCheck[6] && !bytesToCheck[7]
&& !bytesToCheck[8] && !bytesToCheck[9] && !bytesToCheck[10] && !bytesToCheck[11] && !bytesToCheck[12] && !bytesToCheck[13] && !bytesToCheck[14] && (bytesToCheck[15] == 0 || bytesToCheck[15] == 1))
return true;
}
return false;
}
// Helper function to determine if an address falls within one of the reserved ranges
// For V4:
// Class A "10.*", Class B "172.[16->31].*", Class C "192.168.*"
// Not implemented yet for V6
bool p2p::isPrivateAddress(bi::address _addressToCheck)
{
if (_addressToCheck.is_v4())
{
bi::address_v4 v4Address = _addressToCheck.to_v4();
bi::address_v4::bytes_type bytesToCheck = v4Address.to_bytes();
if (bytesToCheck[0] == 10 || bytesToCheck[0] == 127)
return true;
if (bytesToCheck[0] == 172 && (bytesToCheck[1] >= 16 && bytesToCheck[1] <= 31))
return true;
if (bytesToCheck[0] == 192 && bytesToCheck[1] == 168)
return true;
}
return false;
}
