Package org.xbill.DNS

Class CookieOption

java.lang.Object

org.xbill.DNS.EDNSOption

org.xbill.DNS.CookieOption

All Implemented Interfaces:

Serializable

public class CookieOption
extends EDNSOption

Cookie EDNS0 Option.

See Also:

• OPTRecord
• RFC 7873
• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.xbill.DNS.EDNSOption

EDNSOption.Code

Field Summary

Fields

Modifier and Type	Field	Description
private byte[]	clientCookie	client cookie
private byte[]	serverCookie	server cookie

Constructor Summary

Constructors

Constructor	Description
CookieOption()	Default constructor for constructing instance from binary representation.
CookieOption(byte[] clientCookie)	Constructor.
CookieOption(byte[] clientCookie, byte[] serverCookie)	Constructor.

Method Summary

Modifier and Type	Method	Description
byte[]	getClientCookie()	Returns the client cookie.
Optional<byte[]>	getServerCookie()	Returns the server cookie.
(package private) void	optionFromWire(DNSInput in)	Converts the wire format of an EDNS Option (the option data only) into the type-specific format.
(package private) String	optionToString()	Returns a string representation of the option parameters
(package private) void	optionToWire(DNSOutput out)	Converts an EDNS Option (the type-specific option data only) into wire format.

Methods inherited from class org.xbill.DNS.EDNSOption

equals, fromWire, fromWire, getCode, getData, hashCode, toString, toWire, toWire

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Details

clientCookie

private byte[] clientCookie

client cookie

serverCookie

private byte[] serverCookie

server cookie

Constructor Details

CookieOption

CookieOption()

Default constructor for constructing instance from binary representation.

CookieOption

public CookieOption(byte[] clientCookie)

Constructor.

Parameters:

clientCookie - the client cookie, which must consist of eight bytes

CookieOption

public CookieOption(byte[] clientCookie,
 byte[] serverCookie)

Constructor.

Parameters:

clientCookie - the client cookie, which must consist of eight bytes

serverCookie - the server cookie, which must consist of 8 to 32 bytes if present

Method Details

getClientCookie

public byte[] getClientCookie()

Returns the client cookie.

Returns:

the client cookie

getServerCookie

public Optional<byte[]> getServerCookie()

Returns the server cookie.

Returns:

the server cookie

optionFromWire

void optionFromWire(DNSInput in)
             throws IOException

Converts the wire format of an EDNS Option (the option data only) into the type-specific format.

Specified by:

optionFromWire in class EDNSOption

Parameters:

in - The input stream.

Throws:

IOException

optionToWire

void optionToWire(DNSOutput out)

Converts an EDNS Option (the type-specific option data only) into wire format.

Specified by:

optionToWire in class EDNSOption

Parameters:

out - The output stream.

optionToString

String optionToString()

Returns a string representation of the option parameters

Specified by:

optionToString in class EDNSOption

Returns:

the string representation