c# - Method to determine if path string is local or remote machine

Question

What's the best way, using C# or other .NET language, to determine if a file path string is on the local machine or a remote server?

It's possible to determine if a path string is UNC using the following:

new Uri(path).IsUnc

That works great for paths that start with C: or other drive letter, but what about paths like:

\machinenamesharenamedirectory
\10.12.34.56sharenamedirectory

...where both refer to the local machine - these are UNC paths but are still local.

Answer 1

This is how I did it.

    public static bool IsLocal(DirectoryInfo dir)
    {
        foreach (DriveInfo d in DriveInfo.GetDrives())
        {
            if (string.Compare(dir.Root.FullName, d.Name, StringComparison.OrdinalIgnoreCase) == 0) //[drweb86] Fix for different case.
            {
                return (d.DriveType != DriveType.Network);
            }
        }
         throw new DriveNotFoundException();
    }