Fix SSH_PUBKEYINFO, limit characters, add tests We fix a bad_bufptr() failure from a previous commit. We now limit the allowed characters to those that will definitely be safe in a shell. Some scripts/programs may use arbitrary environment variables without escaping correctly - that could be a problem in a restricted environment. The current allowed set is a-z A-Z 0-9 .,_-+@ This also adds a test for SSH_PUBKEYINFO, by default it only runs under github actions (or "act -j build").

#!/bin/sh
set -e

test "$1" = 'remove' || test "$1" = 'deconfigure' || exit 0
if test -x /etc/init.d/dropbear; then
  if test -x /usr/sbin/invoke-rc.d; then
    invoke-rc.d dropbear stop
  else
    /etc/init.d/dropbear stop
  fi
fi