Win32: How to validate credentials against Active Directory?

Question

It has been asked, and answered for .NET, but now it\'s time to get an answer for native Win32 code:

How do i validate a Windows username and password?

Answer 1

I authenticated user, by username & password like this :

username is user sn attribute value in Ldap server, like U12345

userDN is user DistinguishedName in LdapServer

public bool AuthenticateUser(string username, string password)
{
try
{
var ldapServerNameAndPort = "Servername:389";
var userDN = string.Format("CN=0},OU=Users,OU=MyOU,DC=MyDC,DC=com",username);
var conn = new LdapConnection(ldapServerNameAndPort)
{
 AuthType = AuthType.Basic
};
conn.Bind(new NetworkCredential(userDN , password));
return true;
}
catch (Exception e)
{
 return false;
}

}