ost::IPV6Address(3) The network name and address objects are all derived from a common IPV6Address base class.

SYNOPSIS


#include <address.h>

Inherited by ost::IPV6Broadcast, ost::IPV6Host, ost::IPV6Mask, and ost::IPV6Multicast.

Public Member Functions


IPV6Address (const IPV6Validator *validator=NULL)
Create an Internet Address object with an empty (0.0.0.0) address.
IPV6Address (struct in6_addr addr, const IPV6Validator *validator=NULL)
Convert the system internet address data type (struct in_addr) into a Common C++ IPV6Address object.
IPV6Address (const char *address, const IPV6Validator *validator=NULL)
Convert a null terminated ASCII host address string (example: '127.0.0.1') or host address name (example: 'www.voxilla.org') directly into a Common C++ IPV6Address object.
IPV6Address (const IPV6Address &rhs)
Copy constructor.
virtual ~IPV6Address ()
Destructor.
const char * getHostname (void) const
Provide a string representation of the value (Internet Address) held in the IPV6Address object.
bool isInetAddress (void) const
May be used to verify if a given IPV6Address returned by another function contains a 'valid' address, or '0.0.0.0' which is often used to mark 'invalid' IPV6Address values.
struct in6_addr getAddress (void) const
Provide a low level system usable struct in_addr object from the contents of IPV6Address.
struct in6_addr getAddress (size_t i) const
Provide a low level system usable struct in_addr object from the contents of IPV6Address.
size_t getAddressCount () const
Returns the number of internet addresses that an IPV6Address object contains.
IPV6Address & operator= (const char *str)

IPV6Address & operator= (struct in6_addr addr)

IPV6Address & operator= (const IPV6Address &rhs)

bool operator! () const

bool operator== (const IPV6Address &a) const
Compare two internet addresses to see if they are equal (if they specify the physical address of the same internet host).
bool operator!= (const IPV6Address &a) const
Compare two internet addresses to see if they are not equal (if they each refer to unique and different physical ip addresses).

Protected Member Functions


bool setIPAddress (const char *host)
Sets the IP address from a string representation of the numeric address, ie '127.0.0.1'.
void setAddress (const char *host)
Used to specify a host name or numeric internet address.

Protected Attributes


struct in6_addr * ipaddr

size_t addr_count

char * hostname

Static Protected Attributes


static Mutex mutex

Detailed Description

The network name and address objects are all derived from a common IPV6Address base class.

Specific classes, such as IPV4Host, IPV6Mask, etc, are defined from IPV6Address entirely so that the manner a network address is being used can easily be documented and understood from the code and to avoid common errors and accidental misuse of the wrong address object. For example, a 'connection' to something that is declared as a 'IPV6Host' can be kept type-safe from a 'connection' accidently being made to something that was declared a 'IPV6Broadcast'.

Author:

David Sugar [email protected] Internet Address binary data type.

Constructor & Destructor Documentation

ost::IPV6Address::IPV6Address (const IPV6Validator * validator = NULL)

Create an Internet Address object with an empty (0.0.0.0) address.

Parameters:

validator optional validator function object, intended for derived classes.

ost::IPV6Address::IPV6Address (struct in6_addr addr, const IPV6Validator * validator = NULL)

Convert the system internet address data type (struct in_addr) into a Common C++ IPV6Address object.

Parameters:

addr struct of system used binary internet address.
validator optional validator function object, intended for derived classes.

ost::IPV6Address::IPV6Address (const char * address, const IPV6Validator * validator = NULL)

Convert a null terminated ASCII host address string (example: '127.0.0.1') or host address name (example: 'www.voxilla.org') directly into a Common C++ IPV6Address object.

Parameters:

address null terminated C string.
validator optional validator function object, intended for derived classes.

ost::IPV6Address::IPV6Address (const IPV6Address & rhs)

Copy constructor.

virtual ost::IPV6Address::~IPV6Address () [virtual]

Destructor.

Member Function Documentation

struct in6_addr ost::IPV6Address::getAddress (void) const

Provide a low level system usable struct in_addr object from the contents of IPV6Address. This is needed for services such as bind() and connect().

Returns:

system binary coded internet address.

struct in6_addr ost::IPV6Address::getAddress (size_t i) const

Provide a low level system usable struct in_addr object from the contents of IPV6Address. This is needed for services such as bind() and connect().

Parameters:

i for IPV6Addresses with multiple addresses, returns the address at this index. User should call getAddressCount() to determine the number of address the object contains.

Returns:

system binary coded internet address. If parameter i is out of range, the first address is returned.

size_t ost::IPV6Address::getAddressCount () const [inline]

Returns the number of internet addresses that an IPV6Address object contains. This usually only happens with IPV6Host objects where multiple IP addresses are returned for a DNS lookup

const char* ost::IPV6Address::getHostname (void) const

Provide a string representation of the value (Internet Address) held in the IPV6Address object.

Returns:

string representation of IPV6Address.

bool ost::IPV6Address::isInetAddress (void) const

May be used to verify if a given IPV6Address returned by another function contains a 'valid' address, or '0.0.0.0' which is often used to mark 'invalid' IPV6Address values.

Returns:

true if address != 0.0.0.0.

bool ost::IPV6Address::operator! () const [inline]

bool ost::IPV6Address::operator!= (const IPV6Address & a) const

Compare two internet addresses to see if they are not equal (if they each refer to unique and different physical ip addresses). This is implimented in terms of operator==

IPV6Address& ost::IPV6Address::operator= (const char * str)

IPV6Address& ost::IPV6Address::operator= (struct in6_addr addr)

IPV6Address& ost::IPV6Address::operator= (const IPV6Address & rhs)

bool ost::IPV6Address::operator== (const IPV6Address & a) const

Compare two internet addresses to see if they are equal (if they specify the physical address of the same internet host). If there is more than one IP address in either IPV6Address object, this will return true if all of the IP addresses in the smaller are in the larger in any order.

void ost::IPV6Address::setAddress (const char * host) [protected]

Used to specify a host name or numeric internet address.

Parameters:

host The string representation of the IP address or a hostname, , if NULL, it will default to INADDR_ANY

bool ost::IPV6Address::setIPAddress (const char * host) [protected]

Sets the IP address from a string representation of the numeric address, ie '127.0.0.1'.

Parameters:

host The string representation of the IP address

Returns:

true if successful

Member Data Documentation

size_t ost::IPV6Address::addr_count [protected]

char* ost::IPV6Address::hostname [mutable], [protected]

struct in6_addr* ost::IPV6Address::ipaddr [protected]

Mutex ost::IPV6Address::mutex [static], [protected]

Author

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