how to know a socket is blocking/no-blocking without using fcntl()

[TAYBENGH%NUSDISCS.BITNET at cunyvm.cuny.edu]

        Hi, all the wizards out there! How I can get the blocking/no-blocking
status from a socket without calling fcntl()? Can ioctl() do the job?
        Any helps is very much appreciated...

-Beng Hang Tay
 Department of Information Systems and Computer Science
 National University of Singapore