def main():
<EOL>pack = struct.pack('<STR_LIT>', OPTIONS['<STR_LIT>'].encode('<STR_LIT:ascii>'), <NUM_LIT:0>)<EOL>sk = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)<EOL>try:<EOL><INDENT>info = struct.unpack('<STR_LIT>', fcntl.ioctl(sk.fileno(), <NUM_LIT>, pack))<EOL><DEDENT>except OSError:<EOL><INDENT>return error('<STR_LIT>'.format(OPTIONS['<STR_LIT>']))<EOL><DEDENT>finally:<EOL><INDENT>sk.close()<EOL><DEDENT>if_index = int(info[<NUM_LIT:1>])<EOL>sk = nl_socket_alloc()  <EOL>ok(<NUM_LIT:0>, genl_connect, sk)  <EOL>_LOGGER.debug('<STR_LIT>')<EOL>driver_id = ok(<NUM_LIT:0>, genl_ctrl_resolve, sk, b'<STR_LIT>')<EOL>_LOGGER.debug('<STR_LIT>')<EOL>mcid = ok(<NUM_LIT:0>, genl_ctrl_resolve_grp, sk, b'<STR_LIT>', b'<STR_LIT>')<EOL>if not OPTIONS['<STR_LIT>']:<EOL><INDENT>print('<STR_LIT>')<EOL><DEDENT>else:<EOL><INDENT>print("<STR_LIT>")<EOL><DEDENT>results = dict()<EOL>for i in range(<NUM_LIT:2>, -<NUM_LIT:1>, -<NUM_LIT:1>):  <EOL><INDENT>if not OPTIONS['<STR_LIT>']:<EOL><INDENT>ret = ok(i, do_scan_trigger, sk, if_index, driver_id, mcid)<EOL>if ret < <NUM_LIT:0>:<EOL><INDENT>_LOGGER.warning('<STR_LIT>', ret)<EOL>time.sleep(<NUM_LIT:5>)<EOL>continue<EOL><DEDENT><DEDENT>ret = ok(i, do_scan_results, sk, if_index, driver_id, results)<EOL>if ret < <NUM_LIT:0>:<EOL><INDENT>_LOGGER.warning('<STR_LIT>', ret)<EOL>time.sleep(<NUM_LIT:5>)<EOL>continue<EOL><DEDENT>break<EOL><DEDENT>if not results:<EOL><INDENT>print('<STR_LIT>')<EOL>return<EOL><DEDENT>print('<STR_LIT>'.format(len(results)))<EOL>print_table(results.values())<EOL>
Main function called upon script execution.