Parse an IP Address: Difference between revisions

=={{header|PowerShell}}==

<lang PowerShell>

function Get-IpAddress

{

[CmdletBinding()]

[OutputType([PSCustomObject])]

Param

(

[Parameter(Mandatory=$true,

ValueFromPipeline=$true,

ValueFromPipelineByPropertyName=$true,

Position=0)]

$InputObject

)

Begin

{

function Get-Address ([string]$Address)

{

if ($Address.IndexOf(".") -ne -1)

{

$Address, $port = $Address.Split(":")

[PSCustomObject]@{

IPAddress = [System.Net.IPAddress]$Address

Port = $port

}

}

else

{

if ($Address.IndexOf("[") -ne -1)

{

[PSCustomObject]@{

IPAddress = [System.Net.IPAddress]$Address

Port = ($Address.Split("]")[-1]).TrimStart(":")

}

}

else

{

[PSCustomObject]@{

IPAddress = [System.Net.IPAddress]$Address

Port = $null

}

}

}

}

}

Process

{

$InputObject | ForEach-Object {

$address = Get-Address $_

$bytes = ([System.Net.IPAddress]$address.IPAddress).GetAddressBytes()

[Array]::Reverse($bytes)

$i = 0

$bytes | ForEach-Object -Begin {[bigint]$decimalIP = 0} `

-Process {$decimalIP += [bigint]$_ * [bigint]::Pow(256, $i); $i++} `

-End {[PSCustomObject]@{

Address = $address.IPAddress

Port = $address.Port

Hex = "0x$($decimalIP.ToString('x'))"}

}

}

}

}

</lang>

Parse an array of IP addresses in a text format:

<lang PowerShell>

$ipAddresses = "127.0.0.1","127.0.0.1:80","::1","[::1]:80","2605:2700:0:3::4713:93e3","[2605:2700:0:3::4713:93e3]:80" | Get-IpAddress

$ipAddresses

</lang>

{{Out}}

<pre>

Address Port Hex

------- ---- ---

127.0.0.1 0x7f000001

127.0.0.1 80 0x7f000001

::1 0x1

::1 80 0x1

2605:2700:0:3::4713:93e3 0x260527000000000300000000471393e3

2605:2700:0:3::4713:93e3 80 0x260527000000000300000000471393e3

</pre>

The '''Address''' "property" is an object containing more information...

<lang PowerShell>

$ipAddresses[5].Address

</lang>

{{Out}}

<pre>

Address :

AddressFamily : InterNetworkV6

ScopeId : 0

IsIPv6Multicast : False

IsIPv6LinkLocal : False

IsIPv6SiteLocal : False

IsIPv6Teredo : False

IsIPv4MappedToIPv6 : False

IPAddressToString : 2605:2700:0:3::4713:93e3

</pre>

... allowing for specific filtering:

<lang PowerShell>

$ipAddresses | where {$_.Address.AddressFamily -eq "InterNetworkV6" -and $_.Port -ne $null}

</lang>

{{Out}}

<pre>

Address Port Hex

------- ---- ---

::1 80 0x1

2605:2700:0:3::4713:93e3 80 0x260527000000000300000000471393e3

</pre>