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KDECore

KNetwork::KIpAddress

KNetwork::KIpAddress Class Reference

An IP address. More...

#include <ksocketaddress.h>

List of all members.


Public Member Functions

const void * addr () const
bool compare (const KIpAddress &other, bool checkMapped=true) const
Q_UINT32 hostIPv4Addr (bool convertMapped=true) const
Q_UINT32 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 (Q_UINT32 ip4addr)
 KIpAddress (const void *addr, int version=4)
 KIpAddress (const char *addr)
 KIpAddress (const QString &addr)
 KIpAddress (const KIpAddress &other)
 KIpAddress ()
KIpAddress & operator= (const KIpAddress &other)
bool operator== (const KIpAddress &other) const
bool setAddress (const void *raw, int version=4)
bool setAddress (const char *address)
bool setAddress (const QString &address)
QString toString () const
int version () const
 ~KIpAddress ()

Static Public Attributes

static const KIpAddress anyhostV4
static const KIpAddress anyhostV6
static const KIpAddress localhostV4
static const KIpAddress localhostV6

Protected Attributes

Q_UINT32 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 <thiago.macieira@kdemail.net>

Definition at line 62 of file ksocketaddress.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 ksocketaddress.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 ksocketaddress.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 ksocketaddress.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 ksocketaddress.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 ksocketaddress.h.

KNetwork::KIpAddress::KIpAddress ( Q_UINT32  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 ksocketaddress.h.

KNetwork::KIpAddress::~KIpAddress (  )  [inline]

Destructor.

This frees resources associated with this object.

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

Definition at line 131 of file ksocketaddress.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 ksocketaddress.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 96 of file ksocketaddress.cpp.

Q_UINT32 KIpAddress::hostIPv4Addr ( bool  convertMapped = true  )  const

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. The address returned is in host byte order.

Definition at line 209 of file ksocketaddress.cpp.

Q_UINT32 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. The address returned is in network byte order.

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.

Definition at line 235 of file ksocketaddress.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 277 of file ksocketaddress.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 286 of file ksocketaddress.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 295 of file ksocketaddress.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 304 of file ksocketaddress.h.

bool KNetwork::KIpAddress::isGlobal (  )  const [inline]

Returns true if this is a global IPv6 address.

Definition at line 342 of file ksocketaddress.h.

bool KNetwork::KIpAddress::isIPv4Addr (  )  const [inline]

Returns true if this is an IPv4 address.

Definition at line 177 of file ksocketaddress.h.

bool KNetwork::KIpAddress::isIPv6Addr (  )  const [inline]

Returns true if this is an IPv6 address.

Definition at line 183 of file ksocketaddress.h.

bool KNetwork::KIpAddress::isLinkLocal (  )  const [inline]

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

Definition at line 320 of file ksocketaddress.h.

bool KNetwork::KIpAddress::isLocalhost (  )  const [inline]

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

Definition at line 262 of file ksocketaddress.h.

bool KNetwork::KIpAddress::isLoopback (  )  const [inline]

This is an alias for isLocalhost.

Definition at line 268 of file ksocketaddress.h.

bool KNetwork::KIpAddress::isMulticast (  )  const [inline]

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

Definition at line 310 of file ksocketaddress.h.

bool KNetwork::KIpAddress::isMulticastGlobal (  )  const [inline]

Returns true if this is an IPv6 global multicast address.

Definition at line 394 of file ksocketaddress.h.

bool KNetwork::KIpAddress::isMulticastLinkLocal (  )  const [inline]

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

Definition at line 376 of file ksocketaddress.h.

bool KNetwork::KIpAddress::isMulticastNodeLocal (  )  const [inline]

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

Definition at line 370 of file ksocketaddress.h.

bool KNetwork::KIpAddress::isMulticastOrgLocal (  )  const [inline]

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

Definition at line 388 of file ksocketaddress.h.

bool KNetwork::KIpAddress::isMulticastSiteLocal (  )  const [inline]

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

Definition at line 382 of file ksocketaddress.h.

bool KNetwork::KIpAddress::isSiteLocal (  )  const [inline]

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

Definition at line 331 of file ksocketaddress.h.

bool KNetwork::KIpAddress::isUnspecified (  )  const [inline]

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

Definition at line 256 of file ksocketaddress.h.

bool KNetwork::KIpAddress::isV4Compat (  )  const [inline]

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

Definition at line 360 of file ksocketaddress.h.

bool KNetwork::KIpAddress::isV4Mapped (  )  const [inline]

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

Definition at line 348 of file ksocketaddress.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 87 of file ksocketaddress.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 ksocketaddress.h.

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 172 of file ksocketaddress.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 166 of file ksocketaddress.cpp.

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 129 of file ksocketaddress.cpp.

QString KIpAddress::toString (  )  const

Returns the address as a string.

Definition at line 189 of file ksocketaddress.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 ksocketaddress.h.


Member Data Documentation

const KIpAddress KIpAddress::anyhostV4 [static]

the any host or undefined address in IPv4 (0.0.0.0)

Definition at line 406 of file ksocketaddress.h.

const KIpAddress KIpAddress::anyhostV6 [static]

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

Definition at line 411 of file ksocketaddress.h.

const KIpAddress KNetwork::KIpAddress::localhostV4 [static]

localhost in IPv4 (127.0.0.1)

Definition at line 404 of file ksocketaddress.h.

const KIpAddress KNetwork::KIpAddress::localhostV6 [static]

localhost in IPv6 (::1)

Definition at line 409 of file ksocketaddress.h.

Q_UINT32 KNetwork::KIpAddress::m_data[4] [protected]

Definition at line 398 of file ksocketaddress.h.

char KNetwork::KIpAddress::m_version [protected]

Definition at line 400 of file ksocketaddress.h.


The documentation for this class was generated from the following files:
  • ksocketaddress.h
  • ksocketaddress.cpp

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