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Re: posix_spawn_file_actions_addchdir

From: Bruno Haible
Subject: Re: posix_spawn_file_actions_addchdir
Date: Sat, 08 Sep 2018 01:05:31 +0200
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Eric Blake wrote:
> http://austingroupbugs.net/view.php?id=1208
> There, I argue that we also need posix_spawn_file_actions_addfchdir(), 
> in part because it lets us get the same power as openat() in determining 
> how relative file names are resolved in relation to an fd.

The use-case is, AFAIU, the 'find' program: when it recurses through
deep directory hierarchies, it uses openat() to avoid producing too
long file names. Right?

The Austin Group may want to introduce posix_spawn_file_actions_addfchdir
OR posix_spawn_file_actions_addopenat and posix_spawn_file_actions_addchdirat.
AFAICS, you wouldn't need both in the standard. So, I would wait until the
Austin Group has debated this alternative.


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