#!/bin/sh

#set -e

# initramfs-tools header

PREREQ=""

prereqs()
{
	echo "${PREREQ}"
}

case "${1}" in
	prereqs)
		prereqs
		exit 0
		;;
esac

# live-initramfs header

. /scripts/live-functions

log_begin_msg "Setting up init"

# live-initramfs script

# Arrange for shells on virtual consoles, rather than login prompts

if [ -z "${NOAUTOLOGIN}" ] && [ -n "${USERNAME}" ]
then
	if [ ! -z "${LIVE_GETTY}" ]
	then
		if echo "${DEFCONSOLE}" | grep -qs ttyS
		then
			# AUTOMATIC SERIAL CONSOLE #
			PORT=$(echo "${DEFCONSOLE}" | \
				sed -e 's%,.*%%')
			SPEED=$(echo "${DEFCONSOLE}" | \
				sed -e 's%ttyS[0-9]\+,%%' \
				-e's%\([0-9]\+\).*%\1%')

			if ! ( sed -n -e'/^[^#]/p' /root/etc/inittab | grep -qs ":respawn:/sbin/getty.*${PORT}" )
			then
				IDs="A B C D E F G H I J K L M N O P Q R S T Q U V V X Y Z 0 1 2 3 4 5 6 7 8 9"

				for ID1 in ${IDs}
				do
					for ID2 in ${IDs}
					do
						ID="${ID1}${ID2}"

						if ! grep "^${ID}:" /etc/inittab
						then
							#make sure it is not already in use
							break 2
						fi
					done
				done

				echo "${ID}:2345:respawn:/sbin/live-getty -L ${PORT} ${SPEED} vt100" >> /root/etc/inittab
			fi
		fi

		if [ -f /root/etc/inittab ]
		then
			sed -i -e'/^[^#]/s%respawn:/sbin/getty%respawn:/sbin/live-getty%' /root/etc/inittab
		fi
	else
		if [ -f /root/etc/inittab ]
		then
			sed -i -e "s|^\([^:]*:[^:]*:[^:]*\):.*getty.*\<\(tty[0-9]*\).*$|\1:/bin/login -f ${USERNAME} </dev/\2 >/dev/\2 2>\&1|" /root/etc/inittab
		fi

		if [ "/root/etc/event.d/tty*" != "$(echo /root/etc/event.d/tty*)" ]
		then
			for f in /root/etc/event.d/tty*
			do
				sed -i -e "/^respawn$/!s|^respawn.*|respawn /bin/login -f ${USERNAME} </dev/$(basename ${f}) > /dev/$(basename ${f}) 2>\&1|" ${f}
				sed -i -e "s|^exec.*|exec /bin/login -f ${USERNAME} </dev/$(basename ${f}) > /dev/$(basename ${f}) 2>\&1|" ${f}
			done
		fi
	fi

	# Since we use autologin, lastlog doesn't make sense on the console.
	sed -i '/^[^#].*pam_lastlog\.so/s/^/# /' /root/etc/pam.d/login
fi

# do not try to remove files if using file-rc
if [ -d /root/etc/rc0.d ]
then
	# This has the nice side effect of the cron.{daily,weekly,monthly} jobs in
	# /etc/crontab remaining disabled, yet also not run by anacron
	if [ -x /root/usr/sbin/anacron ]
	then
		chroot /root dpkg-divert --add --rename --quiet /usr/sbin/anacron
		ln -s /bin/true /root/usr/sbin/anacron
	fi

	# Avoid clobbering the user's clock
	rm -f /root/etc/rc?.d/K??hwclock.sh
fi

# Disable readahead since it doesn't play well with squashfs + unionfs
# use chmod instead of mv to not trigger unionfs bugs.
if [ -e /root/sbin/readahead-list ]
then
	chmod -x /root/sbin/readahead-list
fi

log_end_msg

exit 0