Re: [PATCH] alternative to sys_indirect, part 1

[Michael Kerrisk]

On 4/24/08, Alan Cox <alan@xxxxxxxxxxxxxxxxxxx> wrote:
> On Thu, 24 Apr 2008 09:00:08 -0700 (PDT)
>
> David Miller <davem@xxxxxxxxxxxxx> wrote:
>
>
> > From: Alan Cox <alan@xxxxxxxxxxxxxxxxxxx>
>  > Date: Thu, 24 Apr 2008 16:24:44 +0100
>  >
>  > > BTW in 4.4BSD and derivatives if I remember rightly F_CLOEXEC *is*
>  > > inherited across accept() so I doubt any user space software will be too
>  > > upset by such a shift.
>  >
>  > It actually doesn't.
>  >
>  > Just like in Linux, no file descriptor flags are inherited.
>
>
> NDELAY certainly appears to be looking at Stevens.

A while back I did some testing of this point.  These were the results I noted:

FreeBSD 4.8
O_NONBLOCK and O_ASYNC are inherited
FD_CLOEXEC is not inherited

Solaris 8
O_NONBLOCK and O_ASYNC are inherited
FD_CLOEXEC is not inherited

Tru64 5.1 (sep 03, testdrive)
No F_SETFL flags are inherited
FD_CLOEXEC is not inherited

HP-UX 11
No F_SETFL flags are inherited
FD_CLOEXEC is not inherited
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