# encoding: ascii
# api: powershell
# title: Get-HostsFile
# description: This function will allow you to retreive the contents of a hosts file on a local or remote system. This can be used with one or more systems.
# version: 0.1
# type: function
# author: Boe Prox
# license: CC0
# function: Get-HostsFile
# x-poshcode-id: 2562
# x-archived: 2016-03-18T11:29:26
# x-published: 2011-03-15T10:06:00
#
#
Function Get-HostsFile {
<#
.SYNOPSIS
Retrieves the contents of a hosts file on a specified system
.DESCRIPTION
Retrieves the contents of a hosts file on a specified system
.PARAMETER Computer
Computer name to view host file from
.NOTES
Name: Get-HostsFile
Author: Boe Prox
DateCreated: 15Mar2011
.LINK
http://boeprox.wordpress.com
.EXAMPLE
Get-HostsFile "server1"
Description
-----------
Retrieves the contents of the hosts file on 'server1'
#>
[cmdletbinding(
DefaultParameterSetName = 'Default',
ConfirmImpact = 'low'
)]
Param(
[Parameter(
ValueFromPipeline = $True)]
[string[]]$Computer
)
Begin {
$psBoundParameters.GetEnumerator() | % {
Write-Verbose "Parameter: $_"
}
If (!$PSBoundParameters['computer']) {
Write-Verbose "No computer name given, using local computername"
[string[]]$computer = $Env:Computername
}
$report = @()
}
Process {
Write-Verbose "Starting process of computers"
ForEach ($c in $computer) {
Write-Verbose "Testing connection of $c"
If (Test-Connection -ComputerName $c -Quiet -Count 1) {
Write-Verbose "Validating path to hosts file"
If (Test-Path "\\$c\C$\Windows\system32\drivers\etc\hosts") {
Switch -regex -file ("\\$c\c$\Windows\system32\drivers\etc\hosts") {
"^\d\w+" {
Write-Verbose "Adding information to collection"
$temp = "" | Select Computer, IP, Hostname, Notes
$new = $_.Split("") | ? {$_ -ne ""}
$temp.Computer = $c
$temp.IP = $new[0]
$temp.HostName = $new[1]
If ($new[2] -eq $Null) {
$temp.Notes = "NA"
}
Else {
$temp.Notes = $new[2]
}
$report += $temp
}
}
}#EndIF
ElseIf (Test-Path "\\$c\C$\WinNT\system32\drivers\etc\hosts") {
Switch -regex -file ("\\$c\c$\WinNT\system32\drivers\etc\hosts") {
"^\d\w+" {
Write-Verbose "Adding information to collection"
$temp = "" | Select Computer, IP, Hostname, Notes
$new = $_.Split("") | ? {$_ -ne ""}
$temp.Computer = $c
$temp.IP = $new[0]
$temp.HostName = $new[1]
If ($new[2] -eq $Null) {
$temp.Notes = "NA"
}
Else {
$temp.Notes = $new[2]
}
$report += $temp
}
}
}#End ElseIf
Else {
Write-Verbose "No host file found"
$temp = "" | Select Computer, IP, Hostname, Notes
$temp.Computer = $c
$temp.IP = "NA"
$temp.Hostname = "NA"
$temp.Notes = "Unable to locate host file"
$report += $temp
}#End Else
}
Else {
Write-Verbose "No computer found"
$temp = "" | Select Computer, IP, Hostname, Notes
$temp.Computer = $c
$temp.IP = "NA"
$temp.Hostname = "NA"
$temp.Notes = "Unable to locate Computer"
$report += $temp
}
}
}
End {
Write-Output $report
}
}