GNU bug report logs - #76876
logname output is often wrong when linked with glibc

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From: Paul Eggert <eggert <at> cs.ucla.edu>
To: Nicolas Boos <nicolas.boos <at> wanadoo.fr>
Cc: Gnulib bugs <bug-gnulib <at> gnu.org>, 76876 <at> debbugs.gnu.org
Subject: bug#76876: logname output is often wrong when linked with glibc
Date: Sat, 8 Mar 2025 15:42:51 -0800

[Message part 1 (text/plain, inline)]

On 2025-03-08 08:46, Nicolas Boos via GNU coreutils Bug Reports wrote:
> It seems getlogin() is malfunctioning only with glibc.

It's the other way round: glibc is right (in the sense that it conforms 
to POSIX) and the other two are wrong.

> Adding a permanent fix to gnulib/getlogin.c code might be a better solution.

Any such fix should work around the musl bug. (Gnulib doesn't worry 
about uclibc.)

I expect such a patch would be welcome if someone had the time to write 
and test it. In the meantime I installed the attached to Gnulib, to 
document the incompatibility, which also occurs with getlogin_r.

[0001-getlogin-document-musl-bug.patch (text/x-patch, attachment)]

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