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#!/bin/sh # preinst script for milter-greylist # # 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 http://www.debian.org/doc/debian-policy/ or # the debian-policy package case "$1" in install) SERVER_HOME=/var/lib/milter-greylist SERVER_USER=greylist SERVER_NAME="Greylist Milter" SERVER_GROUP=greylist # create user to avoid running server as root # 1. create group if not existing if ! getent group | grep -q "^$SERVER_GROUP:" ; then echo -n "Adding group $SERVER_GROUP.." addgroup --quiet --system $SERVER_GROUP 2>/dev/null ||true echo "..done" fi # 2. create homedir if not existing test -d $SERVER_HOME || mkdir $SERVER_HOME # 3. create user if not existing if ! getent passwd | grep -q "^$SERVER_USER:"; then echo -n "Adding system user $SERVER_USER.." adduser --quiet \ --system \ --ingroup $SERVER_GROUP \ --no-create-home \ --home $SERVER_HOME \ --disabled-password \ $SERVER_USER 2>/dev/null || true echo "..done" fi # 4. adjust passwd entry usermod -c "$SERVER_NAME" \ -d $SERVER_HOME \ -g $SERVER_GROUP \ $SERVER_USER # 5. adjust file and directory permissions if ! dpkg-statoverride --list $SERVER_HOME >/dev/null then # chown -R not needed as folder will be empty if it has # just been created. If not, package is getting updated # and it should have the owner set properly. chown $SERVER_USER:adm $SERVER_HOME chmod u=rwx,g=rxs,o= $SERVER_HOME fi # 6. Add the user to the ADDGROUP group if test -n $ADDGROUP then if ! groups $SERVER_USER | cut -d: -f2 | \ grep -qw $SERVER_GROUP; then adduser $SERVER_USER $SERVER_GROUP fi fi ;; abort-upgrade|upgrade) ;; *) 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. exit 0Private