#! /bin/sh
#
# initscripts postinst
#

set -e

case "$1" in
  configure)
	PREV_VER=$2
	;;
  abort-upgrade|abort-remove|abort-deconfigure)
	exit 0
	;;
esac

umask 022

#
# Function like update-rc.d but simpler & faster.
# Usage: updatercd basename start|stop NN runlevel .
#
# Heuristic: use the real update-rc.d if file-rc or insserv is
# detected, or if the /etc/rc2.d directory is not present.
#
updatercd() {

	[ -f /etc/init.d/$1 ] || return 0

	if \
		[ -d /usr/share/file-rc/. ] \
		|| [ -d /usr/lib/file-rc/. ] \
		|| [ -d /usr/share/insserv/. ] \
		|| [ ! -d /etc/rc2.d/. ]
	then
		# Funniness on next line is because we are running with set -e
		update-rc.d "$@" >/dev/null && return 0 || return $?
	fi

	base=$1
	shift

	tmp="$(echo /etc/rc?.d/[SK]??$base)"
	case "$tmp" in
		"/etc/rc?.d/[SK]??$base") : ;;
		*) return ;;
	esac

	while [ "$1" != "" ]
	do
		if [ "$1" = stop ]
		then
			tlet=K
		else
			tlet=S
		fi
		case "$2" in
			?) lev=0$2 ;;
			*) lev=$2 ;;
		esac
		shift 2
		while [ "$1" != "." ]
		do
			cd /etc/rc$1.d
			ln -sf ../init.d/$base $tlet$lev$base
			shift
		done
		shift
	done
}

chrooted() {
  if [ -r /proc/1/root ]; then
    return 1
  fi
  return 0
}

#
# Initialize rcS default file.
#
if [ ! -f /etc/default/rcS ]
then
	cp -p /usr/share/initscripts/default.rcS /etc/default/rcS
fi

#
# In 2.86.ds1-7 the "single" script was moved.
# We have to remove the old links _before_ we install new ones.
#
if dpkg --compare-versions "$PREV_VER" lt "2.86.ds1-7"
then
	update-rc.d -f single remove >/dev/null 2>&1 || :
fi

# In 2.86.ds1-16, the mtab.sh and hostname.sh scripts were moved.
if dpkg --compare-versions "$PREV_VER" lt "2.86.ds1-16"
then
	update-rc.d -f mtab.sh remove >/dev/null 2>&1 || :
	update-rc.d -f hostname.sh remove >/dev/null 2>&1 || :
fi

# In 2.86.ds1-21, the sendsigs script were moved, and in 2.86.ds1-35
# it was moved back.
if dpkg --compare-versions "$PREV_VER" lt "2.86.ds1-35"
then
	update-rc.d -f sendsigs remove >/dev/null 2>&1 || :
fi

#
# Okay, we could do this with update-rc.d, but that would probably
# be pretty slow. This way we win some speed.
# DO NOT FOLLOW THIS EXAMPLE IN OTHER PACKAGES.
#
# Links in runlevel S
#
updatercd mountkernfs.sh         start 2 S .
updatercd hostname.sh            start 2 S .
updatercd mountdevsubfs.sh       start 4 S .
updatercd bootlogd               start 5 S .
updatercd checkroot.sh           start 10 S .
updatercd mtab.sh                start 12 S .
updatercd checkfs.sh             start 30 S .
updatercd mountall.sh            start 35 S .
updatercd mountall-bootclean.sh  start 36 S .
updatercd mountoverflowtmp       start 37 S . stop 63 0 6 .
updatercd mountnfs.sh            start 45 S .
updatercd mountnfs-bootclean.sh  start 46 S .
updatercd bootmisc.sh            start 55 S .
updatercd urandom                start 55 S . start 30 0 6 .
#
# Links in runlevels other than S
#
updatercd halt                   start 90 0 .
updatercd reboot                 start 90 6 .
updatercd umountroot             start 60 0 6 .
updatercd umountfs               start 40 0 6 .
updatercd umountnfs.sh           start 31 0 6 .
updatercd sendsigs               start 20 0 6 .

updatercd killprocs              start 30 1 .
updatercd single                 start 90 1 .
updatercd rc.local               start 99 2 3 4 5 .
updatercd rmnologin              start 99 2 3 4 5 .
updatercd stop-bootlogd-single   start 99 S .
updatercd stop-bootlogd          start 99 2 3 4 5 .

#
# Remove scripts that were left behind by older glibc (<< 2.3.2.ds1-12)
# versions. We have the same functionality in mount{kern,devsub}fs.sh 
#
#
# In 2.86.ds1-10 the "mountvirtfs" script was replaced by
# mountkernfs.sh and mountdevsubfs.sh.  It was removed completely in
# 2.86.ds1-16.
#
for F in mountkernfs devpts.sh mountvirtfs
do
	rm -f /etc/init.d/$F
	update-rc.d $F remove >/dev/null 2>&1 || :
done

#
# Create /var/run and /var/lock on the root partition to make sure
# they are available when RAMRUN or RAMLOCK is enabled.
# If mount fail (like in a vserver environment), just clean up and ignore
# it.  The admins enabling RAMRUN and RAMLOCK will have to create the
# directories themselves in this case.
#
if dpkg --compare-versions "$PREV_VER" lt "2.86.ds1-22" && ! chrooted
then
	# We need to quickly bind / to another location so we can make them
	# just in case /var is a mountpoint or a symlink to one.
	mkdir -p /.root
	if mount -n --bind / /.root ; then
		if [ -L /.root/var ] && [ ! -d /.root/var ] ; then
			# No use trying if /var is a relative symlink.  It is not
			# going to work.
			:
		else
			mkdir -p /.root/var/run /.root/var/lock
		fi
		umount /.root
	fi
	rmdir /.root
fi

#
# When installing for the first time or upgrading from version before 2.86.ds1-27,
# a reboot is needed to make the /lib/init/rw/ tmpfs available.  Flag this
# using notify-reboot-required.  Not mounting it here as it creates problem
# for debootstrap, vservers, pbuilder and cowbuilder.
#
if dpkg --compare-versions "$PREV_VER" lt "2.86.ds1-27" \
 && [ -x /usr/share/update-notifier/notify-reboot-required ]; then
	/usr/share/update-notifier/notify-reboot-required
fi

#
# Create initial log files
#
[ "$PREV_VER" ] || chmod 755 /var/log/fsck || :
for F in /var/log/dmesg /var/log/boot /var/log/fsck/checkroot /var/log/fsck/checkfs
do
	if [ ! -f "$F" ] && touch "$F" >/dev/null 2>&1
	then
		echo "(Nothing has been logged yet.)" >| "$F"
		chown root:adm "$F"
		chmod 640 "$F"
	fi
done

#
# Set up nologin symlink so that dynamic-login-disabling will work
# (when DELAYLOGIN is set to "yes")
#
if [ ! -L /etc/nologin ] && [ ! -e /etc/nologin ]
then
	rm -f /var/lib/initscripts/nologin
	ln -s /var/lib/initscripts/nologin /etc/nologin
fi

#
# Set up motd stuff, putting variable file in /var/run/
#
if [ ! -f /etc/motd.tail ]
then
	if [ -f /etc/motd ]
	then
		sed 1d /etc/motd > /etc/motd.tail
		[ -s /etc/motd.tail ] || rm -f /etc/motd.tail
	fi
fi
if [ ! -f /var/run/motd ]
then
	if [ -f /etc/motd ]
	then
		cat /etc/motd > /var/run/motd
	else
		:>/var/run/motd
	fi
fi
if [ ! -L /etc/motd ]
then
	[ -f /etc/default/rcS ] && . /etc/default/rcS
	if [ "$EDITMOTD" = no ]
	then
		cat /var/run/motd > /etc/motd.static
		ln -sf motd.static /etc/motd
	else
		ln -sf /var/run/motd /etc/motd
	fi
fi

#
# Mount kernel virtual filesystems...not.
# This causes problems in pbuilder.
#
#
#if [ -x /etc/init.d/mountkernfs.sh ]
#then
#	if which invoke-rc.d >/dev/null 2>&1
#	then
#		invoke-rc.d mountkernfs.sh start || :
#	else
#		/etc/init.d/mountkernfs.sh start
#	fi
#fi

#
# Create /dev/pts, /dev/shm directories
#
if [ "$(uname -s)" = Linux ]
then
	#
	# Only create /dev/{pts,shm} if /dev is on the
	# root file system. If some package has mounted a
	# seperate /dev (ramfs from udev, devfs) it is
	# responsible for the presence of those subdirs.
	#
	if ! mountpoint -q /dev
	then
		[ -d /dev/pts ] || { mkdir --mode=755 /dev/pts ; chown root:root /dev/pts ; }
		[ -d /dev/shm ] || { mkdir --mode=755 /dev/shm ; chown root:root /dev/shm ; }
	fi
fi

#
# Create /etc/rc.local on first time install and when upgrading from
# versions before "2.86.ds1-16"
#
if dpkg --compare-versions "$PREV_VER" lt "2.86.ds1-16"
then
	if [ ! -e /etc/rc.local ]; then
		cat << EOF > /etc/rc.local
#!/bin/sh -e
#
# rc.local
#
# This script is executed at the end of each multiuser runlevel.
# Make sure that the script will "exit 0" on success or any other
# value on error.
#
# In order to enable or disable this script just change the execution
# bits.
#
# By default this script does nothing.

exit 0
EOF
		# make sure it's enabled by default.
		chmod 755 /etc/rc.local
	fi
fi

: