Rainer Weikusat <rainer.weikusat@sncag.com> writes:

[...]

> A better, but not universally portable solution, would be to close
> everything > 2 listed in /dev/fd (supported at least by Solaris and
> *BSD and indirectly by linux, through symlink /dev/fd ->
> /proc/self/fd).

Some additional information on this:

<URL:[url]http://www.awprofessional.com/articles/article.asp?p=99706&seqNum=15&rl=1[/ur
l]>

So this should be supported on any actual UNIX(*) (or unix-like)
system one can reasonably expect to encounter today.

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