vpnc-scripts doesn't properly use resolvectl

[cminyard]

When using openconnect, it was updating /etc/resolv.conf directly instead of using resolvectl. I traced that down to the file /usr/share/vpnc-scripts/vpnc-script and the line:

  grep '^hosts' /etc/nsswitch.conf 2>/dev/null|grep resolve >/dev/null 2>&1 && command systemd-resolve --status >/dev/null 2>&1

Even though my system is using systemd-resolved, "resolve" is not in the hosts line of /etc/nssswitch and systemd-resolve is not in the path. I changed that line to:

  grep '^hosts' /etc/nsswitch.conf 2>/dev/null|grep dns >/dev/null 2>&1 && command resolvectl status >/dev/null 2>&1

but I'm not sure that is correct. It works for me, though.

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: vpnc-scripts 0.1~git20210402-1 [modified: usr/share/vpnc-scripts/vpnc-script]
ProcVersionSignature: Ubuntu 6.5.0-14.14~22.04.1-generic 6.5.3
Uname: Linux 6.5.0-14-generic x86_64
NonfreeKernelModules: serialsim
ApportVersion: 2.20.11-0ubuntu82.5
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Thu Jan 25 15:53:09 2024
InstallationDate: Installed on 2023-01-16 (374 days ago)
InstallationMedia: Ubuntu 22.04.1 LTS "Jammy Jellyfish" - Release amd64 (20220809.1)
PackageArchitecture: all
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
RebootRequiredPkgs: Error: path contained symlinks.
SourcePackage: vpnc-scripts
UpgradeStatus: No upgrade log present (probably fresh install)

[cminyard (minyard)]

There has been a lot of churn in the vpnc-scripts repository around this.

This problem would be fixed by 4a1bfb81be3dfa5c886cdd589886f60b424c12e4 in https://gitlab.com/openconnect/vpnc-scripts

There are later changes, too.