Re: Complicated interactions between O_EXEC, fdescfs, fexecve, and shebangs

Reply: Gary Jennejohn : "Re: Complicated interactions between O_EXEC, fdescfs, fexecve, and shebangs"
In reply to: Konstantin Belousov : "Re: Complicated interactions between O_EXEC, fdescfs, fexecve, and shebangs"
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From: Drew DeVault <sir_at_cmpwn.com>
Date: Thu, 04 Nov 2021 07:41:29 UTC

On Wed Nov 3, 2021 at 2:35 PM CET, Konstantin Belousov wrote:
> - Semantic of the FreeBSD fdescfs open(2) is different, to get the
> behavior similar to Linux, you need to specify "nodup" mount option,
> see fdescfs(5).

fdescfs(5) does not mention a nodup option, but it does mention a
linrdlnk option. Helpfully, it does not tell us what this option
actually does.