[ILUG] don't pass open file descriptor to children

[Kenn Humborg]

> >>On 13 Jul 2001 16:05:02 +0100, Padraig Brady wrote:
> >>
> >>>Is there a flag you can set on a file descriptor (using fcntl 
> or equivalent)
> >>>to tell the kernel not to copy that particular descriptor to forked 
> >>>children?
> >>>
...
> Oops should have been a bit more descriptive (pardon the pun).
> This has to be general (I don't have to source to the children).

Then you need a lesson on the difference between fork() and
exec()...  If you're writing the program calling fork(), then
you _have_ source for the children.  It's the _same_ code.

However, if you want to prevent it being carried across a
subsequent exec(), then there is F_SETFD as just mentioned by
Kate.

Later,
Kenn