Re: posix_spawn_file_actions_addchdir

[Eric Blake]

On 09/07/2018 04:53 PM, Bruno Haible wrote:

> Implemented as follows. The prototype is as in [3], except that I dropped
> the suffix '_np', because
>    - Functions with suffix '_np' are in the system's namespace, that is,
>      there is no requirement that different systems implement them with the
>      same semantics or same prototype.
>    - Gnulib has fewer backward compatibility requirements, in case we need
>      to change the prototype in order to conform to some future POSIX standard.

Did you also read my POSIX request (which also drops _np)? 
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.

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Eric Blake, Principal Software Engineer
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