DnsClient-PS.psm1
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#Requires -Version 5.1 # Before we do anything else, make sure we have a sufficient .NET version that can load # the .NET Standard 2.0 version of DnsClient.NET. It's supposed to be compatible with # .NET 4.6.1, but only if the app is compiled to support it (which PowerShell 5.1 is not). # So it only loads properly on .NET 4.7.1 or later. Any version of .NET Core should # already work. if ($PSVersionTable.PSEdition -eq 'Desktop') { # https://docs.microsoft.com/en-us/dotnet/framework/migration-guide/how-to-determine-which-versions-are-installed#to-check-for-a-minimum-required-net-framework-version-by-querying-the-registry-in-powershell-net-framework-45-and-later $netBuild = (Get-ItemProperty "HKLM:SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full").Release if ($netBuild -ge 461308) { <# 4.7.1+ - all good #> } else { if ($netBuild -ge 460798) { $netVer = '4.7' } elseif ($netBuild -ge 394802) { $netVer = '4.6.2' } elseif ($netBuild -ge 394254) { $netVer = '4.6.1' } elseif ($netBuild -ge 393295) { $netVer = '4.6' } elseif ($netBuild -ge 379893) { $netVer = '4.5.2' } elseif ($netBuild -ge 378675) { $netVer = '4.5.1' } Write-Warning "**********************************************************************" Write-Warning "Insufficient .NET version. Found .NET $netVer (build $netBuild)." Write-Warning ".NET 4.7.1 or later is required to ensure proper functionality." Write-Warning "**********************************************************************" } } # Get public and private function definition files. $Public = @( Get-ChildItem -Path $PSScriptRoot\Public\*.ps1 -ErrorAction Ignore ) $Private = @( Get-ChildItem -Path $PSScriptRoot\Private\*.ps1 -ErrorAction Ignore ) # Dot source the files Foreach($import in @($Public + $Private)) { Try { . $import.fullname } Catch { Write-Error -Message "Failed to import function $($import.fullname): $_" } } # We need to maintain a LookupClientOptions instance to store the current # settings for our primary LookupClient. Most of the defaults are fine except # we'll disable cache so things work more like nslookup/dig by default. # When users change settings, we'll change them in the options instance and # create a new client instance based on those options. $script:ClientOptions = [DnsClient.LookupClientOptions]::new() $script:ClientOptions.UseCache = $false $script:Client = [DnsClient.LookupClient]::new($script:ClientOptions) |