com.tencent.kona.sun.net.util

Class IPAddressUtil

java.lang.Object

com.tencent.kona.sun.net.util.IPAddressUtil

public class IPAddressUtil
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
IPAddressUtil()

Method Summary

Modifier and Type	Method and Description
static java.lang.String	checkAuthority(java.net.URL url)
static java.lang.String	checkExternalForm(java.net.URL url)
static java.lang.String	checkHostString(java.lang.String host)
static byte[]	convertFromIPv4MappedAddress(byte[] addr)
static int	digit(char ch, int radix) Returns the numeric value of the character ch in the specified radix.
static boolean	isBsdParsableV4(java.lang.String input) Try to parse String as IPv4 address literal by following BSD-style formatting rules.
static boolean	isIPv4LiteralAddress(java.lang.String src)
static boolean	isIPv6LiteralAddress(java.lang.String src)
static boolean	match(char c, long lowMask, long highMask)
static int	parseAsciiDigit(char c, int radix)
static int	scan(java.lang.String s, long lowMask, long highMask)
static int	scan(java.lang.String s, long lowMask, long highMask, char[] others)
static byte[]	textToNumericFormatV4(java.lang.String src)
static byte[]	textToNumericFormatV6(java.lang.String src)
static java.net.InetAddress	toScopedAddress(java.net.InetAddress address) Returns a scoped version of the supplied local, link-local ipv6 address if that scope-id can be determined from local NetworkInterfaces.
static java.net.InetSocketAddress	toScopedAddress(java.net.InetSocketAddress address) Same as above for InetSocketAddress
static byte[]	validateNumericFormatV4(java.lang.String src) Validates if input string is a valid IPv4 address literal.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

IPAddressUtil

public IPAddressUtil()

Method Detail

textToNumericFormatV4

public static byte[] textToNumericFormatV4(java.lang.String src)

validateNumericFormatV4

public static byte[] validateNumericFormatV4(java.lang.String src)

Validates if input string is a valid IPv4 address literal. If the "jdk.net.allowAmbiguousIPAddressLiterals" system property is set to false, or is not set then validation of the address string is performed as follows: If string can't be parsed by following IETF IPv4 address string literals formatting style rules (default one), but can be parsed by following BSD formatting style rules, the IPv4 address string content is treated as ambiguous and IllegalArgumentException is thrown.

Parameters:

src - input string

Returns:

bytes array if string is a valid IPv4 address string

Throws:

java.lang.IllegalArgumentException - if "jdk.net.allowAmbiguousIPAddressLiterals" SP is set to "false" and IPv4 address string "src" is ambiguous

textToNumericFormatV6

public static byte[] textToNumericFormatV6(java.lang.String src)

isIPv4LiteralAddress

public static boolean isIPv4LiteralAddress(java.lang.String src)

Parameters:

src - a String representing an IPv4 address in textual format

Returns:

a boolean indicating whether src is an IPv4 literal address

isIPv6LiteralAddress

public static boolean isIPv6LiteralAddress(java.lang.String src)

Parameters:

src - a String representing an IPv6 address in textual format

Returns:

a boolean indicating whether src is an IPv6 literal address

convertFromIPv4MappedAddress

public static byte[] convertFromIPv4MappedAddress(byte[] addr)

toScopedAddress

public static java.net.InetAddress toScopedAddress(java.net.InetAddress address)
                                            throws java.net.SocketException

Returns a scoped version of the supplied local, link-local ipv6 address if that scope-id can be determined from local NetworkInterfaces. If the address already has a scope-id or if the address is not local, ipv6 or link local, then the original address is returned.

Parameters:

address -

Returns:

Throws:

java.net.SocketException - if the given ipv6 link local address is found on more than one local interface

toScopedAddress

public static java.net.InetSocketAddress toScopedAddress(java.net.InetSocketAddress address)
                                                  throws java.net.SocketException

Same as above for InetSocketAddress

Throws:

java.net.SocketException

match

public static boolean match(char c,
                            long lowMask,
                            long highMask)

scan

public static int scan(java.lang.String s,
                       long lowMask,
                       long highMask)

scan

public static int scan(java.lang.String s,
                       long lowMask,
                       long highMask,
                       char[] others)

checkAuthority

public static java.lang.String checkAuthority(java.net.URL url)

checkExternalForm

public static java.lang.String checkExternalForm(java.net.URL url)

checkHostString

public static java.lang.String checkHostString(java.lang.String host)

digit

public static int digit(char ch,
                        int radix)

Returns the numeric value of the character ch in the specified radix.

Parameters:

ch - the character to be converted.

radix - the radix.

Returns:

the numeric value represented by the character in the specified radix.

isBsdParsableV4

public static boolean isBsdParsableV4(java.lang.String input)

Try to parse String as IPv4 address literal by following BSD-style formatting rules.

Parameters:

input - input string

Returns:

true if input string is parsable as IPv4 address literal, false otherwise.

parseAsciiDigit

public static int parseAsciiDigit(char c,
                                  int radix)