// 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; }