Re: s6-envuidgid: Weird errors with GNU libc's getgrent() and endgrent()

From: Casper Ti. Vector <>
Date: Mon, 10 Jun 2019 15:13:34 +0800

On Sun, Jun 09, 2019 at 05:28:49PM -0300, Guillermo wrote:
> /etc/nsswitch.conf, which I don't recall having ever modified, says:
> group: db files

Try using `qfile -o' to find the owner, and subsequently how it should
originally have been? (I used Gentoo for several years before migrating
to Alpine/Void two or three years ago, which is why I still lurk on its

> I have no idea what changed, why this used to work before my upgrade
> of the libc, or why it apparently never failed for anyone else not on
> Gentoo.

You are correct: the issue can be reproduced on my void/glibc system if
`db' is added (whether prepended or appended) to the `group:' line in
/etc/nsswitch.conf. (The /etc/nsswitch.conf is the distro-default for
glibc/x86_64 systems, unchanged on my system.)

My current OpenPGP key:
RSA4096/0x227E8CAAB7AA186C (expires: 2020.10.19)
7077 7781 B859 5166 AE07 0286 227E 8CAA B7AA 186C
Received on Mon Jun 10 2019 - 07:13:34 UTC

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