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#!/bin/sh
# preinst script for bind9
#
# see: dh_installdeb(1)
set -e
# summary of how this script can be called:
# * <new-preinst> `install'
# * <new-preinst> `install' <old-version>
# * <new-preinst> `upgrade' <old-version>
# * <old-preinst> `abort-upgrade' <new-version>
# for details, see https://www.debian.org/doc/debian-policy/ or
# the debian-policy package
case "$1" in
install|upgrade)
if [ -n "$2" ] && dpkg --compare-versions "$2" lt "1:9.11.2+dfsg-6"; then
theirs=$(md5sum /etc/bind/named.conf.options | sed 's/ .*$//')
mine=56919cbc0d819c9a303a8bdeb306b5f1
if [ "$mine" = "$theirs" ]; then
if [ -n "$(dpkg-query -f '${Conffiles}' -W bind9 | grep /etc/bind/named.conf.options)" ]; then
# dpkg knows /etc/bind/named.conf.options as a conffile (from squeeze or older)
# cannot move the outdated file aside to avoid dpkg noticing deleted-by-local-admin
# therefore edit it in place to make it match the to-be-installed version
cp -p /etc/bind/named.conf.options /etc/bind/named.conf.options.dpkg-old
sed -i '26{/^$/d}; 23{/auth-nxdomain no;/d}' /etc/bind/named.conf.options
else
mv /etc/bind/named.conf.options /etc/bind/named.conf.options.dpkg-old
fi
fi
fi
;;
abort-upgrade)
if [ ! -f "/etc/bind/named.conf.options" ] && [ -f "/etc/bind/named.conf.options.dpkg-old" ]; then
theirs=$(md5sum /etc/bind/named.conf.options.dpkg-old | sed 's/ .*$//')
mine=56919cbc0d819c9a303a8bdeb306b5f1
if [ "$mine" = "$theirs" ]; then
mv /etc/bind/named.conf.options.dpkg-old /etc/bind/named.conf.options
fi
fi
;;
*)
echo "preinst called with unknown argument \`$1'" >&2
exit 1
;;
esac
# dh_installdeb will replace this with shell code automatically
# generated by other debhelper scripts.
#DEBHELPER#
exit 0
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