Internet addresses used specifically as masking addresses (such as "
255.255.255.0") are held in the IPV4Mask derived object.
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#include <address.h>
Inheritance diagram for IPV4Mask:
Collaboration diagram for IPV4Mask:
Public Member Functions
Create the mask from a null terminated ASCII string such as "255.255.255.128".
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Allows assignment from the return of functions like inet_addr() or htonl()
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Provide a string representation of the value (Internet Address) held in the
IPV4Address object.
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May be used to verify if a given
IPV4Address returned by another function contains a "valid" address, or "0.0.0.0" which is often used to mark "invalid"
IPV4Address values.
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Provide a low level system usable struct in_addr object from the contents of
IPV4Address.
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Provide a low level system usable struct in_addr object from the contents of
IPV4Address.
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Compare two internet addresses to see if they are equal (if they specify the physical address of the same internet host).
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Compare two internet addresses to see if they are not equal (if they each refer to unique and different physical ip addresses).
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Protected Member Functions
Sets the IP address from a string representation of the numeric address, ie "127.0.0.1".
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Used to specify a host name or numeric internet address.
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Protected Attributes
Static Protected Attributes
Friends
Masks are usually used to coerce host addresses into a specific router or class domain.
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Detailed Description
Internet addresses used specifically as masking addresses (such as "
255.255.255.0") are held in the IPV4Mask derived object.
The seperate class is used so that C++ type casting can automatically determine when an IPV4Address object is really a mask address object rather than simply using the base class. This also allows manipulative operators for address masking to operate only when presented with a Masked address as well as providing cleaner and safer source.
- Author
- David Sugar dyfet.nosp@m.@ost.nosp@m.el.co.nosp@m.m Internet Address Mask such as subnet masks.
Definition at line 522 of file address.h.
Constructor & Destructor Documentation
IPV4Mask::IPV4Mask
(
const char *
mask )
Create the mask from a null terminated ASCII string such as "255.255.255.128".
- Parameters
-
mask null terminated ASCII mask string.
Member Function Documentation
struct in_addr IPV4Address::getAddress
(
void
)
const
inherited
Provide a low level system usable struct in_addr object from the contents of IPV4Address.
This is needed for services such as bind() and connect().
- Returns
- system binary coded internet address.
struct in_addr IPV4Address::getAddress
(
size_t
i )
const
inherited
Provide a low level system usable struct in_addr object from the contents of IPV4Address.
This is needed for services such as bind() and connect().
- Parameters
-
i for IPV4Addresses 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 IPV4Address::getAddressCount
(
)
const
inlineinherited
Returns the number of internet addresses that an IPV4Address object contains.
This usually only happens with IPV4Host objects where multiple IP addresses are returned for a DNS lookup
Definition at line 472 of file address.h.
const char* IPV4Address::getHostname
(
void
)
const
inherited
Provide a string representation of the value (Internet Address) held in the IPV4Address object.
- Returns
- string representation of IPV4Address.
bool IPV4Address::isInetAddress
(
void
)
const
inherited
May be used to verify if a given IPV4Address returned by another function contains a "valid" address, or "0.0.0.0" which is often used to mark "invalid" IPV4Address values.
- Returns
- true if address != 0.0.0.0.
bool IPV4Address::operator!
(
)
const
inlineinherited
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==
IPV4Address& IPV4Mask::operator=
(
unsigned long
addr )
inline
Allows assignment from the return of functions like inet_addr() or htonl()
Definition at line 550 of file address.h.
bool IPV4Address::operator==
(
const
IPV4Address &
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 IPV4Address object, this will return true if all of the IP addresses in the smaller are in the larger in any order.
void IPV4Address::setAddress
(
const char *
host )
protectedinherited
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 IPV4Address::setIPAddress
(
const char *
host )
protectedinherited
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
Friends And Related Function Documentation
Masks are usually used to coerce host addresses into a specific router or class domain.
This can be done by taking the Inet Host Address object and "and"ing it with an address mask. This operation can be directly expressed in C++ through the & operator.
- Returns
- a internet host address that has been masked.
- Parameters
-
addr host address to be masked by subnet.
mask inetnet mask address object to mask by.
Field Documentation
size_t IPV4Address::addr_count
protectedinherited
char* IPV4Address::hostname
mutableprotectedinherited
struct in_addr* IPV4Address::ipaddr
protectedinherited
The documentation for this class was generated from the following file: