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Date: Wed, 26 Dec 2018 10:47:19 -0500
From: Rich Felker <dalias@...c.org>
To: musl@...ts.openwall.com
Cc: Philippe Grégoire <pg@...egoire.xyz>
Subject: Re: getspnam: errno=ENOENT for absent user
On Wed, Dec 26, 2018 at 01:29:17PM +0100, Szabolcs Nagy wrote:
> * Philippe Grégoire <pg@...egoire.xyz> [2018-12-25 17:07:14 -0500]:
> > I'm working with saltstack on Alpine Linux and am getting trouble
> > managing users. I tracked the problem down to musl and the fact
> > that getspnam sets errno to ENOENT when a user is missing. This
> > behavior differs from glibc which leaves errno to 0 and makes
> > the user relies on the return value; when the name is missing.
> >
> > Semantically, ENOENT makes sense, but this is breaking compatibility
> > with other softwares, at the moment. I'll send a patch over to
> > saltstack so that current systems are supported, but believe it
> > should be fixed here too for future compatibility. What do you think?
>
> based on
>
> http://pubs.opengroup.org/onlinepubs/9699919799/functions/getpwnam.html
> "If the requested entry was not found, errno shall not be changed."
>
> this should be fixed in musl.
Thanks for checking this. I'll write and commit a fix.
Rich
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