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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QHOSTADDRESSPRIVATE_H
#define QHOSTADDRESSPRIVATE_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists for the convenience
// of the QHostAddress and QNetworkInterface classes. This header file may change from
// version to version without notice, or even be removed.
//
// We mean it.
//
#include <QtNetwork/private/qtnetworkglobal_p.h>
#include "qhostaddress.h"
#include "qabstractsocket.h"
QT_BEGIN_NAMESPACE
enum AddressClassification {
LoopbackAddress = 1,
LocalNetAddress, // RFC 1122
LinkLocalAddress, // RFC 4291 (v6), RFC 3927 (v4)
MulticastAddress, // RFC 4291 (v6), RFC 3171 (v4)
BroadcastAddress, // RFC 919, 922
GlobalAddress = 16,
TestNetworkAddress, // RFC 3849 (v6), RFC 5737 (v4),
PrivateNetworkAddress, // RFC 1918
UniqueLocalAddress, // RFC 4193
SiteLocalAddress, // RFC 4291 (deprecated by RFC 3879, should be treated as global)
UnknownAddress = 0 // unclassified or reserved
};
class QNetmask
{
// stores 0-32 for IPv4, 0-128 for IPv6, or 255 for invalid
quint8 length;
public:
constexpr QNetmask() : length(255) {}
bool setAddress(const QHostAddress &address);
QHostAddress address(QAbstractSocket::NetworkLayerProtocol protocol) const;
int prefixLength() const { return length == 255 ? -1 : length; }
void setPrefixLength(QAbstractSocket::NetworkLayerProtocol proto, int len)
{
int maxlen = -1;
if (proto == QAbstractSocket::IPv4Protocol)
maxlen = 32;
else if (proto == QAbstractSocket::IPv6Protocol)
maxlen = 128;
if (len > maxlen || len < 0)
length = 255U;
else
length = unsigned(len);
}
friend bool operator==(QNetmask n1, QNetmask n2)
{ return n1.length == n2.length; }
};
class QHostAddressPrivate : public QSharedData
{
public:
QHostAddressPrivate();
void setAddress(quint32 a_ = 0);
void setAddress(const quint8 *a_);
void setAddress(const Q_IPV6ADDR &a_);
bool parse(const QString &ipString);
void clear();
QString scopeId;
union {
Q_IPV6ADDR a6; // IPv6 address
struct { quint64 c[2]; } a6_64;
struct { quint32 c[4]; } a6_32;
};
quint32 a; // IPv4 address
qint8 protocol;
AddressClassification classify() const;
static AddressClassification classify(const QHostAddress &address)
{ return address.d->classify(); }
friend class QHostAddress;
};
QT_END_NAMESPACE
#endif
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