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From: "carlos at redhat dot com" <sourceware-bugzilla@sourceware.org>
To: glibc-bugs@sourceware.org
Subject: [Bug network/30683] New: Add environment override for
 /etc/resolv.conf path
Date: Tue, 25 Jul 2023 17:16:15 +0000
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X-Bugzilla-Product: glibc
X-Bugzilla-Component: network
X-Bugzilla-Version: 2.38
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X-Bugzilla-Who: carlos at redhat dot com
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D30683

            Bug ID: 30683
           Summary: Add environment override for /etc/resolv.conf path
           Product: glibc
           Version: 2.38
            Status: NEW
          Severity: normal
          Priority: P2
         Component: network
          Assignee: unassigned at sourceware dot org
          Reporter: carlos at redhat dot com
  Target Milestone: ---

We support RESOLV_HOST_CONF to override /etc/hosts.conf, so it makes sense =
to
extend this to override /etc/resolv.conf.

Possible options include a RESOLV_CONF environment variable.

Example:
RESOLV_CONF=3D/tmp/resolv.conf getent ahosts example.org

Should this be a tunable that has an environment variable specified?
e.g. GLIBC_TUNABLES=3Dglibc.resolv.conf=3D/tmp/resolv.conf

It would have to be SXID_ERASE (default) IMO since AT_SECURE should not alt=
er
their resolver configurations and subprocesses should also consistently pro=
duce
the same resolution results as the parent process.

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