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    SubjectRe: Should O_NONBLOCK be copied from listening socket to accepting socket?

    On Mon, 4 Sep 2000, Alan Cox wrote:

    > > Is it required that the O_NONBLOCK flag be copied from a listening
    > > socket to an accepted socket? Dan Bernstein believes this is a bug.
    >
    > My posix 1003.1g draft leaves it undefined. It is possible that
    > SuS clarifies this. Unless he can cite a SuS version that has clarified this
    > I believe its like the SIGIO case - inheritance is platform specific.

    Well, in our own manpages

    man 7 socket

    It is possible to do non-blocking IO on sockets by setting
    the O_NONBLOCK flag on a socket file descriptor using
    fcntl(2). O_NONBLOCK is inherited through an accept.

    Cheers
    Chris

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