//pass overflow obj as result to receive name of user (root/username/guest). May not work with player edited permissions.
//******accurate 99.9999999999% of the time <3
checkUser = function(result)
    user = ""
    rfile = null
    if typeof(result) == "computer" then
        file = result.File("/home")
        rfile = result.File("/root")
    else if typeof(result) == "shell" then
        file = result.host_computer.File("/home")
        rfile = result.host_computer.File("/root")
    end if
    if rfile and rfile.has_permission("r") then
        user = "root"
    else if rfile then
        for folder in file.get_folders
            if folder.has_permission("r") and folder.name != "guest" then user = folder.name
        end for
    end if
    if typeof(result) == "file" then
        file = result
        if file.name != "/" then
            file = file.parent
            while file.name != "/"
                file = file.parent
            end while
        end if
        for folder in file.get_folders
            if folder.name == "root" then
                if folder.has_permission("r") then user = "root"
            end if
            if folder.name == "home" and user != "root" then
                for sub in folder.get_folders
                    if sub.has_permission("r") and sub.name != "guest" then user = sub.name
                end for
            end if
        end for
    end if
    if user == "" then user = "guest"
    return user
end function