KNetwork::KIpAddress Class Reference

#include <k3socketaddress.h>

Public Member Functions
	KIpAddress ()
	KIpAddress (const KIpAddress &other)
	KIpAddress (const QString &addr)
	KIpAddress (const char *addr)
	KIpAddress (const void *addr, int version=4)
	KIpAddress (quint32 ip4addr)
	~KIpAddress ()
const void *	addr () const
bool	compare (const KIpAddress &other, bool checkMapped=true) const
quint32	IPv4Addr (bool convertMapped=true) const
bool	isClassA () const
bool	isClassB () const
bool	isClassC () const
bool	isClassD () const
bool	isGlobal () const
bool	isIPv4Addr () const
bool	isIPv6Addr () const
bool	isLinkLocal () const
bool	isLocalhost () const
bool	isLoopback () const
bool	isMulticast () const
bool	isMulticastGlobal () const
bool	isMulticastLinkLocal () const
bool	isMulticastNodeLocal () const
bool	isMulticastOrgLocal () const
bool	isMulticastSiteLocal () const
bool	isSiteLocal () const
bool	isUnspecified () const
bool	isV4Compat () const
bool	isV4Mapped () const
KIpAddress &	operator= (const KIpAddress &other)
bool	operator== (const KIpAddress &other) const
bool	setAddress (const QString &address)
bool	setAddress (const char *address)
bool	setAddress (const void *raw, int version=4)
QString	toString () const
int	version () const

Static Public Attributes
static const KIpAddress	anyhostV4
static const KIpAddress	anyhostV6
static const KIpAddress	localhostV4
static const KIpAddress	localhostV6

Protected Attributes
quint32	m_data [4]
char	m_version

Detailed Description

An IP address.

This class represents one IP address, version 4 or 6. This is only the address, not including port information or other data.

It is not a good programming practice to create address from objects like this. Instead, prefer a more thorough function like KResolver::resolve(), which also handle extra information like scope ids.

This is a light-weight class. Most of the member functions are inlined and there are no virtual functions. This object's size should be less than 20 bytes. Also note that there is no sharing of data.

Author

Thiago Macieira thiag.nosp@m.o@kd.nosp@m.e.org

Deprecated:

Use KSocketFactory or KLocalSocket instead

Definition at line 62 of file k3socketaddress.h.

Constructor & Destructor Documentation

KNetwork::KIpAddress::KIpAddress ( )

inline

Default constructor.

Creates an empty address. It defaults to IP version 4.

Definition at line 69 of file k3socketaddress.h.

KNetwork::KIpAddress::KIpAddress ( const KIpAddress &  other )

inline

Copy constructor.

Copies the data from the other object.

Data is not shared.

Parameters

other

the other

Definition at line 80 of file k3socketaddress.h.

KNetwork::KIpAddress::KIpAddress ( const QString &  addr )

inline

Creates an object from the given string representation.

The IP version is guessed from the address format.

Parameters

addr	the address

Definition at line 90 of file k3socketaddress.h.

KNetwork::KIpAddress::KIpAddress ( const char *  addr )

inline

Creates an object from the given string representation.

The IP version is guessed from the address format.

Parameters

addr	the address

Definition at line 100 of file k3socketaddress.h.

KNetwork::KIpAddress::KIpAddress ( const void *  addr, int  version = 4  )

inline

Creates an object from the given raw data and IP version.

Parameters

addr	the raw data
version	the IP version (4 or 6)

Definition at line 109 of file k3socketaddress.h.

KNetwork::KIpAddress::KIpAddress ( quint32  ip4addr )

inline

This is a convenience constructor.

Constructs an object from the given IPv4 address in the form of an integer.

Note: do not write code to depend on IPv4 addresses being integer types. Instead, treat them as a special type, like a KIpAddress or the system's in_addr.

Parameters

ip4addr

the IPv4 address

Definition at line 122 of file k3socketaddress.h.

KNetwork::KIpAddress::~KIpAddress ( )

inline

Destructor.

This frees resources associated with this object.

Note: destructor is non-virtual. The compiler will happily optimize it out of the way.

Definition at line 131 of file k3socketaddress.h.

Member Function Documentation

const void* KNetwork::KIpAddress::addr ( ) const

inline

Returns a pointer to binary raw data representing the address.

Definition at line 220 of file k3socketaddress.h.

bool KIpAddress::compare	(	const KIpAddress &	other,
		bool	checkMapped = true
	)		const

Compares this address against the other, supplied one and return true if they match.

The checkMapped parameter controls whether a check for an IPv6 v4-mapped address will be performed.

An IPv6 v4-mapped address is an IPv6 address that is, for all purposes, equivalent to an IPv4 one. The default behaviour of this function is to take that into account. If you want a strict matching, pass false to the checkMapped parameter.

Parameters

other	the other IP address
checkMapped	whether v4-mapped addresses will be taken into account

Definition at line 100 of file k3socketaddress.cpp.

quint32 KNetwork::KIpAddress::IPv4Addr ( bool  convertMapped = true ) const

inline

This is a convenience function.

Returns the IPv4 address in a 32-bit integer. The result is only valid if isIPv4Addr() returns true. Alternatively, if the contained IPv6 address is a v4-mapped one and the convertMapped parameter is true, the result will also be valid.

Note: you should not treat IP addresses as integers. Instead, use types defined for that purpose, such as KIpAddress or the system's in_addr type.

Bug:

Check if byte ordering is done right

Definition at line 236 of file k3socketaddress.h.

bool KNetwork::KIpAddress::isClassA ( ) const

inline

Returns true if this is an IPv4 class A address, i.e., from 0.0.0.0 to 127.255.255.255.

This function does not test for v4-mapped addresses.

Definition at line 267 of file k3socketaddress.h.

bool KNetwork::KIpAddress::isClassB ( ) const

inline

Returns true if this is an IPv4 class B address, i.e., one from 128.0.0.0 to 191.255.255.255.

This function does not test for v4-mapped addresses.

Definition at line 276 of file k3socketaddress.h.

bool KNetwork::KIpAddress::isClassC ( ) const

inline

Returns true if this is an IPv4 class C address, i.e., one from 192.0.0.0 to 223.255.255.255.

This function does not test for v4-mapped addresses.

Definition at line 285 of file k3socketaddress.h.

bool KNetwork::KIpAddress::isClassD ( ) const

inline

Returns true if this is an IPv4 class D (a.k.a.

multicast) address.

Note: this function is not the same as isMulticast(). isMulticast also tests for IPv6 multicast addresses.

Definition at line 294 of file k3socketaddress.h.

bool KNetwork::KIpAddress::isGlobal ( ) const

inline

Returns true if this is a global IPv6 address.

Definition at line 332 of file k3socketaddress.h.

bool KNetwork::KIpAddress::isIPv4Addr ( ) const

inline

Returns true if this is an IPv4 address.

Definition at line 177 of file k3socketaddress.h.

bool KNetwork::KIpAddress::isIPv6Addr ( ) const

inline

Returns true if this is an IPv6 address.

Definition at line 183 of file k3socketaddress.h.

bool KNetwork::KIpAddress::isLinkLocal ( ) const

inline

Returns true if this is an IPv6 link-local address.

Definition at line 310 of file k3socketaddress.h.

bool KNetwork::KIpAddress::isLocalhost ( ) const

inline

Returns true if this is either the IPv4 or the IPv6 localhost address.

Definition at line 252 of file k3socketaddress.h.

bool KNetwork::KIpAddress::isLoopback ( ) const

inline

This is an alias for isLocalhost().

Definition at line 258 of file k3socketaddress.h.

bool KNetwork::KIpAddress::isMulticast ( ) const

inline

Returns true if this is a multicast address, be it IPv4 or IPv6.

Definition at line 300 of file k3socketaddress.h.

bool KNetwork::KIpAddress::isMulticastGlobal ( ) const

inline

Returns true if this is an IPv6 global multicast address.

Definition at line 384 of file k3socketaddress.h.

bool KNetwork::KIpAddress::isMulticastLinkLocal ( ) const

inline

Returns true if this is an IPv6 link-local multicast address.

Definition at line 366 of file k3socketaddress.h.

bool KNetwork::KIpAddress::isMulticastNodeLocal ( ) const

inline

Returns true if this is an IPv6 node-local multicast address.

Definition at line 360 of file k3socketaddress.h.

bool KNetwork::KIpAddress::isMulticastOrgLocal ( ) const

inline

Returns true if this is an IPv6 organisational-local multicast address.

Definition at line 378 of file k3socketaddress.h.

bool KNetwork::KIpAddress::isMulticastSiteLocal ( ) const

inline

Returns true if this is an IPv6 site-local multicast address.

Definition at line 372 of file k3socketaddress.h.

bool KNetwork::KIpAddress::isSiteLocal ( ) const

inline

Returns true if this is an IPv6 site-local address.

Definition at line 321 of file k3socketaddress.h.

bool KNetwork::KIpAddress::isUnspecified ( ) const

inline

Returns true if this is the IPv4 or IPv6 unspecified address.

Definition at line 246 of file k3socketaddress.h.

bool KNetwork::KIpAddress::isV4Compat ( ) const

inline

Returns true if this is a v4-compat IPv6 address.

Definition at line 350 of file k3socketaddress.h.

bool KNetwork::KIpAddress::isV4Mapped ( ) const

inline

Returns true if this is a v4-mapped IPv6 address.

Definition at line 338 of file k3socketaddress.h.

KIpAddress & KIpAddress::operator=

(

const KIpAddress &

other

)

Copy operator.

Copies the data from the other object into this one.

Parameters

other

the object to copy

Definition at line 91 of file k3socketaddress.cpp.

bool KNetwork::KIpAddress::operator== ( const KIpAddress &  other ) const

inline

Returns true if the two addresses match.

This function performs a v4-mapped check.

See also

compare

Definition at line 148 of file k3socketaddress.h.

bool KIpAddress::setAddress

(

const QString &

address

)

Sets the address to the given string representation.

Returns

true if the address was successfully parsed; otherwise returns false and leaves the object unchanged.

Definition at line 133 of file k3socketaddress.cpp.

bool KIpAddress::setAddress

(

const char *

address

)

Sets the address to the given string representation.

Returns

true if the address was successfully parsed; otherwise returns false and leaves the object unchanged.

Definition at line 170 of file k3socketaddress.cpp.

bool KIpAddress::setAddress	(	const void *	raw,
		int	version = 4
	)

Sets the address to the given raw binary representation.

Parameters

raw	a pointer to the raw binary data
version	the IP version

Returns

true if the address was successfully parsed; otherwise returns false and leaves the object unchanged.

Definition at line 176 of file k3socketaddress.cpp.

QString KIpAddress::toString

(

)

const

Returns the address as a string.

Definition at line 193 of file k3socketaddress.cpp.

int KNetwork::KIpAddress::version ( ) const

inline

Retrieves the IP version in this object.

Returns

the version: 4 or 6

Definition at line 171 of file k3socketaddress.h.

Member Data Documentation

const KIpAddress KIpAddress::anyhostV4

static

the any host or undefined address in IPv4 (0.0.0.0)

Definition at line 396 of file k3socketaddress.h.

const KIpAddress KIpAddress::anyhostV6

static

the any host or undefined address in IPv6 (::)

Definition at line 401 of file k3socketaddress.h.

const KIpAddress KNetwork::KIpAddress::localhostV4

static

localhost in IPv4 (127.0.0.1)

Definition at line 394 of file k3socketaddress.h.

const KIpAddress KNetwork::KIpAddress::localhostV6

static

localhost in IPv6 (::1)

Definition at line 399 of file k3socketaddress.h.

quint32 KNetwork::KIpAddress::m_data[4]

protected

Definition at line 388 of file k3socketaddress.h.

char KNetwork::KIpAddress::m_version

protected

Definition at line 390 of file k3socketaddress.h.

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The documentation for this class was generated from the following files:

• k3socketaddress.h
• k3socketaddress.cpp