const class inet::IpAddr

sys::Obj
  inet::IpAddr

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IpAddr models both IPv4 and IPv6 numeric addresses as well as provide DNS hostname resolution.

bytes

Buf bytes()

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Get the raw bytes of this address as a Buf of 4 or 16 bytes for IPv4 or IPv6 respectively. The buf position is zero.

equals

virtual override Bool equals(Obj? obj)

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Equality is based on equivalent address bytes.

hash

virtual override Int hash()

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Hash code is based the address bytes.

hostname

Str hostname()

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Return the hostname of this address. If a hostname was specified in make, then that string is used. Otherwise this method will perform a reverse DNS lookup potentially blocking the calling thread. If the address cannot be mapped to a hostname, then return the address in its numeric format.

isIPv4

Bool isIPv4()

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Is this a 32 bit (four byte) IP version 4 address.

isIPv6

Bool isIPv6()

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Is this a 128 bit (sixteen byte) IP version 6 address.

isLoopback

Bool isLoopback()

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Is this a loopback address.

isSiteLocal

Bool isSiteLocal()

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Is this a site local address.

local

const static IpAddr local()

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Return the IpAddr for the local machine.

make

static new make(Str s)

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Parse an IP address formated as an IPv4 numeric address, IPv6 numeric address, or a DNS hostname. If a hostname if provided, then it is resolved to an IP address potentially blocking the calling thread. If the address is invalid or a hostname cannot be resolved then UnknownHostErr is thrown.

Examples:

IpAddr("169.200.3.103")
IpAddr("1080:0:0:0:8:800:200C:417A")
IpAddr("1080::8:800:200C:417A")
IpAddr("::ffff:129.144.52.38")
IpAddr("somehost")
IpAddr("www.acme.com")
makeAll

const static IpAddr[] makeAll(Str s)

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Resolve a hostname to all of its configured IP addresses. If a numeric IPv4 or IPv6 address is specified then a list of one IpAddr is returned. If a hostname if provided, then it is resolved to all its configured IP addresses potentially blocking the calling thread. If the address is invalid or a hostname cannot be resolved then UnknownHostErr is thrown.

makeBytes

const static IpAddr makeBytes(Buf bytes)

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Make an IpAddr for the specified raw bytes. The size of the byte buffer must be 4 for IPv4 or 16 for IPv6, otherwise ArgErr is thrown. The bytes must be a memory backed buffer.

numeric

Str numeric()

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Get this address as a Str in its numeric notation. For IPv4 this is four decimal digits separated by dots. For IPv6 this is eight hexadecimal digits separated by colons.

toNative

Obj toNative()

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To the native platform representation:

  • Java: returns java.net.InetAddress
  • .NET: returns System.Net.IPAddress
toStr

virtual override Str toStr()

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Return the exact string passed to the constructor.