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Mail Archives: cygwin/2023/04/19/15:14:39

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Date: Wed, 19 Apr 2023 21:13:43 +0200
To: Bruno Haible <bruno AT clisp DOT org>
Subject: Re: posix_spawn_file_actions_add[f]chdir_np
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From: Corinna Vinschen via Cygwin <cygwin AT cygwin DOT com>
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Cc: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>, cygwin AT cygwin DOT com
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Hi Bruno,

On Apr 19 17:05, Corinna Vinschen via Cygwin wrote:
> On Apr 19 13:24, Bruno Haible via Cygwin wrote:
> > Note that there is a small inconsistency between implementations:
> > [...]
> > Confirmed by looking at the source code:
> > - musl libc:
> >         if (fd < 0) return EBADF;
> > - FreeBSD:
> >         if (fildes < 0)
> >                 return (EBADF);
> 
> Ok, good to know.  I implemented it like glibc, so fd isn't tested in
> posix_spawn_file_actions_addfchdir_np, but Austin group issue 1208 at
> https://www.austingroupbugs.net/view.php?id=1208 documents it like it's
> implemented in musl and FreeBSD:
> 
>   ERRORS
>   The posix_spawn_file_actions_addfchdir( ) function shall fail if:
>   [EBADF] The value specified by fildes is negative.
>   [...]
> 
> I will fix this in Cygwin.

Done: https://cygwin.com/cgit/newlib-cygwin/commit/?id=3124d8b436a8 

> > [...]
> > Then run
> >   $ make check
> > and it will run the unit tests against the Cygwin libc. It's likely
> > that you will see 1 test failure (test-posix_spawnp-script); but
> > other than that, there ought to be no test failures.
> 
> Indeed, thanks a lot!  I checked all the above and ran the testsuite.
> All tests pass except the test-posix_spawnp-script.exe testcase.
> Great!

I pushed the posix_spawnp patch for now, so all these tests PASS.

See https://cygwin.com/cgit/newlib-cygwin/commit/?id=da40bd6eaf40


Thanks,
Corinna

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