biz.dfch.PS.System.Utilities

2.2.0.20160723

Format-IpAddress.ps1

                                function Format-IPAddress {

<#

.SYNOPSIS

Formats a given string IPv4 address with either leading or non-leading zeros.

.DESCRIPTION

Formats a given string IPv4 address with either leading or non-leading zeros.

Optionally the given address is validated.

.INPUTS

Either an IPv4 address in string format or an array of IPv4 addresses in string format.

.OUTPUTS

[string]

Either an IPv4 address in string format or an array of IPv4 addresses in string format.

.EXAMPLE

Format-IPAddress "10.001.001.001"

10.1.1.1

Formats the specified address to RFC compliant address format.

.EXAMPLE

'1.1.1.1','2.2.2.2' | Format-IPAddress -ToLeadingZero

001.001.001.001

002.002.002.002

Formats the specified addresses to zero-padded addresses.

.LINK

Online Version: http://dfch.biz/biz/dfch/PS/System/Utilities/Format-IPAddress/

.NOTES

See module manifest for required software versions and dependencies at: 

http://dfch.biz/biz/dfch/PS/System/Utilities/biz.dfch.PS.System.Utilities.psd1/

#>

[CmdletBinding(

    SupportsShouldProcess = $true

    ,

    ConfirmImpact = "Low"

    ,

    DefaultParameterSetName = 'short'

    ,

    HelpURI='http://dfch.biz/PS/System/Utilities/Format-IPAddress/'

)]

Param 

(

    # Specifies the IPv4 address to convert

    [Parameter(Mandatory = $true, ValueFromPipeline = $true, Position = 0)]

    [ValidateNotNullOrEmpty()]

    [alias("ip")]

    [alias("IPv4")]

    [alias("IPAddress")]

    $InputObject

    ,

    # Specifies if the address should formatted with leading zeros, e.g. '010.001.001.001'

    [Parameter(Mandatory = $false, ParameterSetName = 'zero')]

    [alias("zero")]

    [alias("WithLeadingZero")]

    [switch] $ToLeadingZero = $true

    ,

    # Specifies if the address should formatted without leading zeros, e.g. '10.1.1.1'

    [Parameter(Mandatory = $false, ParameterSetName = 'short')]

    [alias("short")]

    [alias("NoLeadingZero")]

    [switch] $ToRfcFormat = $true

    ,

    # Specifies if the given address should be validated

    [Parameter(Mandatory = $false)]

    [switch] $Validate = $true

)

BEGIN 

{

    $datBegin = [datetime]::Now;

    [string] $fn = $MyInvocation.MyCommand.Name;

    $OutputParameter = $null;

    Log-Debug -fn $fn -msg ("CALL. InputObject.Count: '{0}'" -f $InputObject.Count) -fac 1;

}

PROCESS

{

    foreach($Object in $InputObject)

    {

        if(!$PSCmdlet.ShouldProcess($Object))

        {

            continue;

        }

        $IpAddress = $Object;

        $fReturn = $IpAddress -match '^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$';

        if(!$fReturn) 

        {

            $IpAddressShort = $null;

        } 

        else 

        {

            $IpAddressShort = '{0}.{1}.{2}.{3}' -f ($Matches[1] -as [int]), ($Matches[2] -as [int]), ($Matches[3] -as [int]), ($Matches[4] -as [int]);

        } # if

        if($PSCmdlet.ParameterSetName -eq 'short') 

        { 

            $OutputParameter = $IpAddressShort;

        } 

        else 

        {

            $fReturn = $IpAddressShort -match '^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$';

            if(!$fReturn) 

            {

                $IpAddressZero = $null;

            } 

            else 

            {

                $IpAddressZero = '{0}.{1}.{2}.{3}' -f ($Matches[1] -as [int]).ToString('000'), ($Matches[2] -as [int]).ToString('000'), ($Matches[3] -as [int]).ToString('000'), ($Matches[4] -as [int]).ToString('000');

            } # if

            $OutputParameter = $IpAddressZero;

        } # if

        if($Validate) 

        {

            [IPAddress] $ip = $IpAddressShort;

            if($ip.IPAddressToString -ne $IpAddressShort) 

            {

                $OutputParameter = $null;

            } # if

        } # if

        $OutputParameter;

    }

}

# PROCESS

END

{

    $datEnd = [datetime]::Now;

    Log-Debug -fn $fn -msg ("RET. fReturn: [{0}]. Execution time: [{1}]ms. Started: [{2}]." -f $fReturn, ($datEnd - $datBegin).TotalMilliseconds, $datBegin.ToString('yyyy-MM-dd HH:mm:ss.fffzzz')) -fac 2;

}

#END

} # function

if($MyInvocation.ScriptName) { Export-ModuleMember -Function Format-IPAddress; }

#

# Copyright 2014-2015 d-fens GmbH

#

# Licensed under the Apache License, Version 2.0 (the "License");

# you may not use this file except in compliance with the License.

# You may obtain a copy of the License at

#

# http://www.apache.org/licenses/LICENSE-2.0

#

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS,

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

# See the License for the specific language governing permissions and

# limitations under the License.

#

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