Private/Resolve-QueryOptions.ps1
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function Resolve-QueryOptions { [CmdletBinding()] param( [switch]$UseCache, [switch]$Recursion, [TimeSpan]$Timeout, [int]$Retries, [switch]$ThrowDnsErrors, [switch]$UseRandomNameServer, [switch]$ContinueOnDnsError, [switch]$ContinueOnEmptyResponse, [switch]$UseTcpFallback, [switch]$UseTcpOnly, [int]$ExtendedDnsBufferSize, [switch]$EnableAuditTrail, [switch]$RequestDnsSecRecords, [Parameter(ValueFromRemainingArguments)] $ExtraParams ) # We want to allow per-call query options from Resolve-Dns. But we don't # want to bother creating a new instance of DnsQueryOptions if the caller # didn't specify any options or the options they did specify don't # conflict with the existing options on the current LookupClient. # # Within Resolve-Dns, we should be able to splat its $PSBoundParameters # against this function and return either $null to indicate there are no # query specific options to apply or a DnsQueryOptions instance that # contains the current LookupClient options with any overridden values. $cOpts = Get-LookupClientOptions $qOpts = $null $psbKeys = $PSBoundParameters.Keys # loop through the parameters to see if any are different $paramNames = @( 'UseCache' 'Recursion' 'Timeout' 'Retries' 'ThrowDnsErrors' 'UseRandomNameServer' 'ContinueOnDnsError' 'ContinueOnEmptyResponse' 'UseTcpFallback' 'UseTcpOnly' 'ExtendedDnsBufferSize' 'EnableAuditTrail' 'RequestDnsSecRecords' ) foreach ($pName in $paramNames) { if ($pName -in $psbKeys -and $cOpts.$pName -ne $PSBoundParameters[$pName]) { if (-not $qOpts) { Write-Debug "Cloning query specific options from client options" $qOpts = [DnsClient.DnsQueryOptions]::new() $paramNames | ForEach-Object { $qOpts.$_ = $cOpts.$_ } } Write-Debug "$pName($($PSBoundParameters[$pName])) differs from current value" $qOpts.$pName = $PSBoundParameters[$pName] } } return $qOpts } |