C# Class SnmpSharpNet.IpAddress

Inheritance: OctetString, IComparable, ICloneable

显示文件 Open project: griffina/SnmpSharpNet Class Usage Examples

Public Properties

Property	Type	Description
ClassA	int
ClassB	int
ClassC	int
ClassD	int
ClassE	int
InvalidClass	int

Public Methods

Method	Description
BuildMaskFromBits ( int bits ) : IpAddress	Build a subnet mask from bit count value
Clone ( ) : Object	Clone current object.
CompareTo ( object obj ) : int	Compare value against IPAddress, byte array, UInt32, IpAddress of OctetString class value.
Equals ( object obj ) : bool	Compare 2 IpAddress objects.
GetBroadcastAddress ( IpAddress mask ) : IpAddress	Returns broadcast address for the objects IP and supplied subnet mask. Subnet mask validity is not confirmed before performing the new value calculation so you should make sure parameter is a valid subnet mask by using IpAddress.IsValidMask method. Broadcast address is calculated by changing every bit in the subnet mask that is set to value 0 into 1 in the address value.
GetClass ( ) : int	Return network class of the IP address
GetHashCode ( ) : int	Return hash representing the value of this object
GetMaskBits ( ) : int	Returns number of subnet bits in the mask. Subnet bits are bits set to value 0 in the subnet mask.
GetSubnetAddress ( IpAddress mask ) : IpAddress	Return subnet address of the IP address in this object and supplied subnet mask
Increment ( UInt32 count ) : IpAddress	Increment IP address contained in the object by specific number and return the result as a new class.
Invert ( ) : IpAddress	Inverts IP address value. All 0s are converted to 1s and 1s to 0s
IpAddress ( ) : System	Constructs a default object with a length of zero. See the super class constructor for more details.
IpAddress ( IpAddress second ) : System	Copy constructor. Constructs a duplicate object based on the passed application string object.
IpAddress ( OctetString second ) : System	Copy constructor.
IpAddress ( System inetAddr ) : System	Constructor Construct the IpAddress class from supplied IPAddress value.
IpAddress ( UInt32 inetAddr ) : System	Constructor Initialize IpAddress class with the IP address value represented as 32-bit unsigned integer value
IpAddress ( byte data ) : System	Constructs an Application String with the passed data. The data is managed by the base class.
IpAddress ( string inetAddr ) : System	Constructs the class and initializes the value to the supplied IP address. See comments in IpAddress.Set(string) method for details.
IsIP ( string val ) : bool	Check if supplied string contains a valid IP address. Valid IP address contains 3 full stops (".") and 4 numeric values in range 0 to 255. Written to address slow performance of IPAddress.TryParse
IsValidMask ( ) : bool	Checks if the value of the object is a valid subnet mask. Subnet mask is a value of consecutive bits with value of 1. If a bit is found with a value of 0 followed (immediately or anywhere else before the end of the value) by a 1, then subnet mask value is not valid.
NetworkMask ( ) : IpAddress	Returns network mask for the class value Each IpAddress belongs to one of the 5 classes, A, B, C, D or E. D network class are multicast addresses and E is experimental class. Because D and E are not "real" network classes and as such don't have a network mask, only classes A, B and C will return a valid subnet mask. Classes D and E will return a null reference.
ReverseByteOrder ( uint val ) : uint	Reverse int value byte order. Static function in IPAddress class doesn't work the way I expected it (didn't troubleshoot) so here is another implementation. Reversing byte order is needed because network encoded IP address is presented in big-endian format. Intel based computers encode values in little-endian form so to perform numerical operations on received IP address values you will need to convert them from big to little-endian format. By the same token, if you wish to transmit data using IP address value calculated on the local system, you will need to convert it to big-endian prior to transmission.
Set ( IPAddress ipaddr ) : void	Set class value from the IPAddress argument
Set ( String value ) : void	Sets the class value to the IP address parsed from the string parameter. Class value will be set with the parsed dotted decimal IP address in the parameter or if string parameter does not represent an IP address, DNS resolution will be performed. Note: DNS resolution is performed using System.Net.Dns.GetHostEntry(string) and can result in a longer then expected delay in this function. In applications where responsiveness is important, name resolution should be performed using async methods available and result passed to this method.
Set ( UInt32 ipvalue ) : void	Set class value from 32-bit unsigned integer value representation of the IP address value
ToString ( ) : System.String	Returns the application string as a dotted decimal represented IP address.
ToUInt32 ( ) : UInt32	Network byte order IP address Convert internal byte array representation of the IP address into a network byte order (most significant byte first) unsigned integer value. To use the returned value in mathematical operations, you will need to change it to host byte order on little endian systems (all i386 compatible systems). To do that, call static method IpAddress.ReverseByteOrder().
decode ( byte buffer, int offset ) : int	Decode ASN.1 encoded IP address value.

Method Details

BuildMaskFromBits() public static method

Build a subnet mask from bit count value

public static BuildMaskFromBits ( int bits ) : IpAddress
bits	int	Number of subnet mask bits
return	IpAddress

Clone() public method

Clone current object.

public Clone ( ) : Object
return	System.Object

CompareTo() public method

Compare value against IPAddress, byte array, UInt32, IpAddress of OctetString class value.

public CompareTo ( object obj ) : int
obj	object	Type: or byte or or or
return	int

Equals() public method

Compare 2 IpAddress objects.

public Equals ( object obj ) : bool
obj	object	object to compare against
return	bool

GetBroadcastAddress() public method

Returns broadcast address for the objects IP and supplied subnet mask. Subnet mask validity is not confirmed before performing the new value calculation so you should make sure parameter is a valid subnet mask by using IpAddress.IsValidMask method. Broadcast address is calculated by changing every bit in the subnet mask that is set to value 0 into 1 in the address value.

public GetBroadcastAddress ( IpAddress mask ) : IpAddress
mask	IpAddress	Subnet mask to apply to the object
return	IpAddress

GetClass() public method

Return network class of the IP address

public GetClass ( ) : int
return	int

GetHashCode() public method

Return hash representing the value of this object

public GetHashCode ( ) : int
return	int

GetMaskBits() public method

Returns number of subnet bits in the mask. Subnet bits are bits set to value 0 in the subnet mask.

public GetMaskBits ( ) : int
return	int

GetSubnetAddress() public method

Return subnet address of the IP address in this object and supplied subnet mask

public GetSubnetAddress ( IpAddress mask ) : IpAddress
mask	IpAddress	Subnet mask
return	IpAddress

Increment() public method

Increment IP address contained in the object by specific number and return the result as a new class.

public Increment ( UInt32 count ) : IpAddress
count	System.UInt32	Number to increment IP address with
return	IpAddress

Invert() public method

Inverts IP address value. All 0s are converted to 1s and 1s to 0s

public Invert ( ) : IpAddress
return	IpAddress

IpAddress() public method

Constructs a default object with a length of zero. See the super class constructor for more details.

public IpAddress ( ) : System
return	System

IpAddress() public method

Copy constructor. Constructs a duplicate object based on the passed application string object.

IpAddress argument is null

public IpAddress ( IpAddress second ) : System
second	IpAddress	The object to copy.
return	System

IpAddress() public method

Copy constructor.

public IpAddress ( OctetString second ) : System
second	OctetString	The object to copy
return	System

IpAddress() public method

Constructor

Construct the IpAddress class from supplied IPAddress value.

public IpAddress ( System inetAddr ) : System
inetAddr	System	IP Address to use to initialize the object.
return	System

IpAddress() public method

Constructor

Initialize IpAddress class with the IP address value represented as 32-bit unsigned integer value

public IpAddress ( UInt32 inetAddr ) : System
inetAddr	System.UInt32	32-bit unsigned integer representation of an IP Address
return	System

IpAddress() public method

Constructs an Application String with the passed data. The data is managed by the base class.

public IpAddress ( byte data ) : System
data	byte	The application string to manage (UTF-8) ///
return	System

IpAddress() public method

Constructs the class and initializes the value to the supplied IP address. See comments in IpAddress.Set(string) method for details.

public IpAddress ( string inetAddr ) : System
inetAddr	string	IP address encoded as a string or host name
return	System

IsIP() public static method

Check if supplied string contains a valid IP address. Valid IP address contains 3 full stops (".") and 4 numeric values in range 0 to 255.

Written to address slow performance of IPAddress.TryParse

public static IsIP ( string val ) : bool
val	string	String value
return	bool

IsValidMask() public method

Checks if the value of the object is a valid subnet mask. Subnet mask is a value of consecutive bits with value of 1. If a bit is found with a value of 0 followed (immediately or anywhere else before the end of the value) by a 1, then subnet mask value is not valid.

public IsValidMask ( ) : bool
return	bool

NetworkMask() public method

Returns network mask for the class value

Each IpAddress belongs to one of the 5 classes, A, B, C, D or E. D network class are multicast addresses and E is experimental class. Because D and E are not "real" network classes and as such don't have a network mask, only classes A, B and C will return a valid subnet mask. Classes D and E will return a null reference.

public NetworkMask ( ) : IpAddress
return	IpAddress

ReverseByteOrder() public static method

Reverse int value byte order. Static function in IPAddress class doesn't work the way I expected it (didn't troubleshoot) so here is another implementation. Reversing byte order is needed because network encoded IP address is presented in big-endian format. Intel based computers encode values in little-endian form so to perform numerical operations on received IP address values you will need to convert them from big to little-endian format. By the same token, if you wish to transmit data using IP address value calculated on the local system, you will need to convert it to big-endian prior to transmission.

public static ReverseByteOrder ( uint val ) : uint
val	uint	Integer value to reverse
return	uint

Set() public method

Set class value from the IPAddress argument

public Set ( IPAddress ipaddr ) : void
ipaddr	System.Net.IPAddress	Type: class instance
return	void

Set() public method

Sets the class value to the IP address parsed from the string parameter.

Class value will be set with the parsed dotted decimal IP address in the parameter or if string parameter does not represent an IP address, DNS resolution will be performed. Note: DNS resolution is performed using System.Net.Dns.GetHostEntry(string) and can result in a longer then expected delay in this function. In applications where responsiveness is important, name resolution should be performed using async methods available and result passed to this method.

Thrown when DNS resolution of the parameter value has failed.

public Set ( String value ) : void
value	String	IP address encoded as a string or host name
return	void

Set() public method

Set class value from 32-bit unsigned integer value representation of the IP address value

public Set ( UInt32 ipvalue ) : void
ipvalue	System.UInt32	IP address value as 32-bit unsigned integer value
return	void

ToString() public method

Returns the application string as a dotted decimal represented IP address.

public ToString ( ) : System.String
return	System.String

ToUInt32() public method

Network byte order IP address

Convert internal byte array representation of the IP address into a network byte order (most significant byte first) unsigned integer value. To use the returned value in mathematical operations, you will need to change it to host byte order on little endian systems (all i386 compatible systems). To do that, call static method IpAddress.ReverseByteOrder().

public ToUInt32 ( ) : UInt32
return	System.UInt32

decode() public method

Decode ASN.1 encoded IP address value.

Parsed data length is not 4 bytes long Parsed data is not in IpAddress format

public decode ( byte buffer, int offset ) : int
buffer	byte	BER encoded data buffer
offset	int	Offset in the array to start parsing from
return	int

Property Details

ClassA public_oe static_oe property

Class A IP address

public static int ClassA
return	int

ClassB public_oe static_oe property

Class B IP address

public static int ClassB
return	int

ClassC public_oe static_oe property

Class C IP address

public static int ClassC
return	int

ClassD public_oe static_oe property

Class D IP address

public static int ClassD
return	int

ClassE public_oe static_oe property

Class E IP address

public static int ClassE
return	int

InvalidClass public_oe static_oe property

Invalid IP address class

public static int InvalidClass
return	int