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netvalidatename (netapi32)
 
.
Summary
Validate if a name is in a valid format and if its in use.

C# Signature:

[DllImport("netapi32.dll", SetLastError=true,CharSet=CharSet.Unicode)]
static extern UInt32 NetValidateName(string lpServer,string lpName, string lpAccount,string lpPassword, int NameType);

static extern UInt32 NetValidateName(string lpServer,string lpName, string lpAccount,string lpPassword, NET_SETUP_NAMETYPE NameType);

VB Signature:

Powershell:

Add-Type -TypeDefinition @"
using System;
using System.Runtime.InteropServices;

public class NetworkUtil
{
    [DllImport("Netapi32.dll",CharSet=CharSet.Unicode)]
    public static extern UInt32 NetValidateName(string lpServer,string lpName,string lpAccount,string lpPassword,
    int NameType);
}

User-Defined Types:

ENUM NET_SETUP_NAMETYPE{
NetSetupUnknown,
NetSetupMachine,
NetSetupWorkgroup,
NetSetupDomain,
NetSetupNonExistentDomain,
NetSetupDnsMachine}

Alternative Managed API:

Do you know one? Please contribute it!

Notes:

Most useful NameType's are 1 and 3 which will allow you to see if the name is in use.

Tips & Tricks:

Please add some!

Sample Code:

using System;

using System.Runtime.InteropServices;



public class NetworkUtil

{

    [DllImport("Netapi32.dll",SetLastError=true,CharSet=CharSet.Unicode)]

    public static extern UInt32 NetValidateName(string lpServer,string lpName, string lpAccount,string lpPassword, int NameType);




    static void Main()

    {

    UInt32 rtn = NetValidateName(null, "jrich523.wordpress.com", null, null, 3);

    Console.WriteLine(rtn);

    Console.ReadKey();

    }

}

POWERSHELL Code Example:

Add-Type -TypeDefinition @"
using System;
using System.Runtime.InteropServices;

public class NetworkUtil
{
    [DllImport("Netapi32.dll",CharSet=CharSet.Unicode)]
    public static extern UInt32 NetValidateName(string lpServer,string lpName,string lpAccount,string lpPassword,
    int NameType);
}
"@

Function Test-NetBIOSName{

param([string] $Name, [int] $NameType)
[NetworkUtil]::NetValidateName($null,$name,$null,$null,$NameType)
}


#TEST

Test-NetBIOSName “myserver” 1

Documentation

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