linux has added "close on exec" flags to lots of fd calls

["Perry E. Metzger" <perry%piermont.com@localhost>]

Linux seems to be adding lots of flags to things like "open" to set
close on exec from the time an fd is born. They claim this helps with
security. I'm not sure I believe that, but at the very least this
might come up for Linux compatibility mode, and it might be useful to
have the calls for API compatibility regardless of whether they're
that useful.

http://udrepper.livejournal.com/20407.html

-- 
Perry E. Metzger                perry%piermont.com@localhost