'Get the short os name from the OS name OID string.'

def get_system_name(self, oid_system_name):

    short_system_name = None
    if (oid_system_name == ''):
        return short_system_name
    for (r, v) in iteritems(oid_to_short_system_name):
        if re.search(r, oid_system_name):
            short_system_name = v
            break
    return short_system_name
