QHostAddress(3qt)QHostAddress(3qt)NAME
QHostAddress - IP address
SYNOPSIS
#include <qhostaddress.h>
Public Members
QHostAddress ()
QHostAddress ( Q_UINT32 ip4Addr )
QHostAddress ( Q_UINT8 * ip6Addr )
QHostAddress ( const Q_IPV6ADDR & ip6Addr )
QHostAddress ( const QHostAddress & address )
virtual ~QHostAddress ()
QHostAddress & operator= ( const QHostAddress & address )
void setAddress ( Q_UINT32 ip4Addr )
void setAddress ( Q_UINT8 * ip6Addr )
bool setAddress ( const QString & address )
bool isIp4Addr () const (obsolete)
Q_UINT32 ip4Addr () const (obsolete)
bool isIPv4Address () const
Q_UINT32 toIPv4Address () const
bool isIPv6Address () const
Q_IPV6ADDR toIPv6Address () const
QString toString () const
bool operator== ( const QHostAddress & other ) const
bool isNull () const
DESCRIPTION
The QHostAddress class provides an IP address.
This class contains an IP address in a platform and protocol
independent manner. It stores both IPv4 and IPv6 addresses in a way
that you can easily access on any platform.
QHostAddress is normally used with the classes QSocket, QServerSocket
and QSocketDevice to set up a server or to connect to a host.
Host addresses may be set with setAddress() and retrieved with
ip4Addr() or toString().
See also QSocket, QServerSocket, QSocketDevice, and Input/Output and
Networking.
MEMBER FUNCTION DOCUMENTATIONQHostAddress::QHostAddress ()
Creates a host address object with the IP address 0.0.0.0.
QHostAddress::QHostAddress ( Q_UINT32 ip4Addr )
Creates a host address object for the IPv4 address ip4Addr.
QHostAddress::QHostAddress ( Q_UINT8 * ip6Addr )
Creates a host address object with the specified IPv6 address.
ip6Addr must be a 16 byte array in network byte order (high-order byte
first).
QHostAddress::QHostAddress ( const Q_IPV6ADDR & ip6Addr )
Creates a host address object with the IPv6 address, ip6Addr.
QHostAddress::QHostAddress ( const QHostAddress & address )
Creates a copy of address.
QHostAddress::~QHostAddress () [virtual]
Destroys the host address object.
Q_UINT32 QHostAddress::ip4Addr () const
This function is obsolete. It is provided to keep old source working.
We strongly advise against using it in new code.
Use toIPv4Address() instead.
bool QHostAddress::isIPv4Address () const
Returns TRUE if the host address represents an IPv4 address; otherwise
returns FALSE.
bool QHostAddress::isIPv6Address () const
Returns TRUE if the host address represents an IPv6 address; otherwise
returns FALSE.
bool QHostAddress::isIp4Addr () const
This function is obsolete. It is provided to keep old source working.
We strongly advise against using it in new code.
Use isIPv4Address() instead.
bool QHostAddress::isNull () const
Returns TRUE if this host address is null (INADDR_ANY or in6addr_any).
The default constructor creates a null address, and that address isn't
valid for any particular host or interface.
QHostAddress & QHostAddress::operator= ( const QHostAddress & address )
Assigns another host address object address to this object and returns
a reference to this object.
bool QHostAddress::operator== ( const QHostAddress & other ) const
Returns TRUE if this host address is the same as other; otherwise
returns FALSE.
void QHostAddress::setAddress ( Q_UINT32 ip4Addr )
Set the IPv4 address specified by ip4Addr.
void QHostAddress::setAddress ( Q_UINT8 * ip6Addr )
This is an overloaded member function, provided for convenience. It
behaves essentially like the above function.
Set the IPv6 address specified by ip6Addr.
ip6Addr must be a 16 byte array in network byte order (high-order byte
first).
bool QHostAddress::setAddress ( const QString & address )
This is an overloaded member function, provided for convenience. It
behaves essentially like the above function.
Sets the IPv4 or IPv6 address specified by the string representation
address (e.g. "127.0.0.1"). Returns TRUE and sets the address if the
address was successfully parsed; otherwise returns FALSE and leaves the
address unchanged.
Q_UINT32 QHostAddress::toIPv4Address () const
Returns the IPv4 address as a number.
For example, if the address is 127.0.0.1, the returned value is
2130706433 (i.e. 0x7f000001).
This value is only valid when isIp4Addr() returns TRUE.
See also toString().
Q_IPV6ADDR QHostAddress::toIPv6Address () const
Returns the IPv6 address as a Q_IPV6ADDR structure. The structure
consists of 16 unsigned characters.
Q_IPV6ADDR addr = hostAddr.ip6Addr();
// addr.c[] contains 16 unsigned characters
for (int i = 0; i < 16; ++i) {
// process addr.c[i]
}
This value is only valid when isIPv6Address() returns TRUE.
See also toString().
QString QHostAddress::toString () const
Returns the address as a string.
For example, if the address is the IPv4 address 127.0.0.1, the returned
string is "127.0.0.1".
See also ip4Addr().
SEE ALSO
http://doc.trolltech.com/qhostaddress.html
http://www.trolltech.com/faq/tech.html
COPYRIGHT
Copyright 1992-2007 Trolltech ASA, http://www.trolltech.com. See the
license file included in the distribution for a complete license
statement.
AUTHOR
Generated automatically from the source code.
BUGS
If you find a bug in Qt, please report it as described in
http://doc.trolltech.com/bughowto.html. Good bug reports help us to
help you. Thank you.
The definitive Qt documentation is provided in HTML format; it is
located at $QTDIR/doc/html and can be read using Qt Assistant or with a
web browser. This man page is provided as a convenience for those users
who prefer man pages, although this format is not officially supported
by Trolltech.
If you find errors in this manual page, please report them to qt-
bugs@trolltech.com. Please include the name of the manual page
(qhostaddress.3qt) and the Qt version (3.3.8).
Trolltech AS 2 February 2007 QHostAddress(3qt)
