org.apache.commons.ssl.util

Class IPAddressParser

java.lang.Object

org.apache.commons.ssl.util.IPAddressParser

public class IPAddressParser
extends Object

Parses String representations of IPv4 and IPv6 addresses, and converts them to byte[]. Returns null if the supplied String is not a valid IP address.

IPv6 addresses are allowed to include square brackets (e.g., "[::a:b:c:d]"), but IPv4 addresses are not. This is to help in situation where an IPv6 literal address is encoded directly inside a URL (the square brackets allow the web client to separate the IPv6 address from its port, since the colon character is overloaded in that context).

Constructor Summary

Constructors

Constructor and Description
IPAddressParser()

Method Summary

Modifier and Type	Method and Description
private static String	b2s(byte b)
private static String	ip4ToHex(byte[] b)
static byte[]	parseIPv4Literal(String s) Converts the supplied IPv4 literal to byte[], or null if the IPv4 address was invalid.
static byte[]	parseIPv6Literal(String s) Converts the supplied IPv6 literal to byte[], or null if the IPv6 address was invalid.
private static String	prependZeroes(String s)
private static String[]	splitOnColon(String s)

Methods inherited from class java.lang.Object

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

Constructor Detail

IPAddressParser

public IPAddressParser()

Method Detail

parseIPv4Literal

public static byte[] parseIPv4Literal(String s)

Converts the supplied IPv4 literal to byte[], or null if the IPv4 address was invalid.

Parameters:

s - Literal IPv4 address.

Returns:

byte[] array or null if the supplied IPv4 address was invalid.

parseIPv6Literal

public static byte[] parseIPv6Literal(String s)

Converts the supplied IPv6 literal to byte[], or null if the IPv6 address was invalid.

Parameters:

s - Literal IPv6 address.

Returns:

byte[] array or null if the supplied IPv6 address was invalid.

prependZeroes

private static String prependZeroes(String s)

splitOnColon

private static String[] splitOnColon(String s)

ip4ToHex

private static String ip4ToHex(byte[] b)

b2s

private static String b2s(byte b)