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#!/bin/sh

#set -vx

PKG_BATCH=${BATCH:=NO}

PKG_PREFIX=${PKG_PREFIX:=/usr/local}

#
# create 'afbackup' user before installing
#

create() {
	if [ ! -x /usr/sbin/pw ]; then
		dialog --msgbox "Please add a user named \`afbackup' before installing this package." 6 60
		exit 69
	fi

	if [ -x /sbin/nologin ]; then
		shell=/sbin/nologin
	else
		shell=/nonexistent
	fi
	if ! pw show user afbackup -q >/dev/null; then
		if ! dialog --clear --yesno "There is no user afbackup on your system.\n\nDo you want it to be created?" 7 60; then
			dialog --msgbox "Please add a user named \`afbackup' before installing this package." 6 60
			exit 69
		fi
		uid=100
		while pw show user -u ${uid} -q >/dev/null; do
			uid=`expr ${uid} + 1`
		done
		if ! pw add user afbackup -u ${uid} -g operator -d "/nonexistent" \
				-c "AFBackup System Owner" -s "${shell}" \
				; then
			e=$?
			dialog --msgbox "Failed to add user \`afbackup'. Please add it manually." 6 60
			exit ${e}
		fi
		echo "==>  Added user \`afbackup' (id ${uid})"
	else
		if ! pw mod user afbackup -g operator -d "/nonexistent" \
				-c "AFBackup System Owner" -s "${shell}" \
				; then
			e=$?
			dialog --msgbox "Failed to update user \`afbackup'." 6 60
			exit ${e}
		fi
		echo "==>  Updated user \`afbackup'."
	fi
}

install_services() {
	oldmask=`umask`
	umask 077
	egrep -v "^af.?backup" /etc/services >/tmp/services
	echo "afbackup	2988/tcp" >>/tmp/services
	echo "afmbackup	2989/tcp" >>/tmp/services
	# XXX what if the original file had another mode?
	install -m 0644 -o root -g wheel /tmp/services /etc/services
	umask $oldmask
}

install_inetd_services() {
	oldmask=`umask`
	umask 077
	egrep -v "^#?af.?backup" /etc/inetd.conf >/tmp/inetd.conf
	echo "afbackup        stream  tcp     nowait  afbackup        ${PKG_PREFIX}/libexec/afbackup/afserver ${PKG_PREFIX}/libexec/afbackup/afserver ${PKG_PREFIX}/etc/afbackup/server.conf" >>/tmp/inetd.conf
	echo "afmbackup       stream  tcp     nowait  afbackup        ${PKG_PREFIX}/libexec/afbackup/afmserver ${PKG_PREFIX}/libexec/afbackup/afmserver ${PKG_PREFIX}/etc/afbackup/server.conf" >>/tmp/inetd.conf
	# XXX what if the original file had another mode?
	install -m 0644 -o root -g wheel /tmp/inetd.conf /etc/inetd.conf
	umask $oldmask
	if [ -r /var/run/inetd.pid ]; then
		kill -1 `cat /var/run/inetd.pid`
	fi
}

check_service() {
	if [ -z "`egrep '^afm?backup' /etc/services`" ] ; then
		if dialog --clear --yesno "You don't have neither 'afbackup' nor 'afmbackup' entries\nin /etc/services.\n\nDo you want them to be created?\n\nNote that /etc/services will be forced to have root:wheel\nownership and mode 0644." 11 61; then
			install_services
		else
			dialog --msgbox "Create the entries manually then. You will need them." 5 60
			return
		fi
	fi
	if [ -z "`egrep '^#?af.?backup' /etc/inetd.conf`" ] ; then
		if dialog --clear --yesno "You don't have entries for afbackup/afmbackup server in\nyour /etc/inetd.conf file.\n\nDo you want them to be installed?" 8 60; then
			install_inetd_services
		else
			dialog --msgbox "You shell create the entries manually then." 5 60
		fi
	fi
}

case $2 in
	PRE-INSTALL)
		create
		;;

	POST-INSTALL)
		case $1 in
			*-client*)
			;;
			*)
			check_service
			;;
		esac
		;;
esac