#!/bin/sh

/etc/rc.conf_mount_rw

# Record the previous version
PRIOR_VERSION=`uname -r | cut -d'.' -f1`
echo $PRIOR_VERSION > /tmp/pre_upgrade_version

# Hack to workaround ticket #3749
if [ "${PRIOR_VERSION}" = "8" ] && grep -q 'sh /etc/rc.reboot' /etc/rc.firmware; then
	PROC=$(ps axwww | grep '/etc/rc.firmware *pfSenseupgrade')
	PID=''
	IMG=''
	if [ -n "${PROC}" ]; then
		PID=$(echo "${PROC}" | awk '{print $1}')
		IMG=$(echo "${PROC}" | sed 's,^.*pfSenseupgrade *,,')
	fi

	if [ -n "${PID}" -a -n "${IMG}" -a -f "${IMG}" ]; then
		cp -fp /bin/sh /tmp/sh.old
		kill ${PID} >/dev/null 2>&1
		kill -9 ${PID} >/dev/null 2>&1
		sed -i '' -e 's,sh /,/tmp/sh.old /,' /etc/rc.firmware
		# To avoid restarting rc.firmware twice because of #4328
		sed -i '' -e '/^restore_chflags()/, /^}/ s/mtree *-PU/mtree -P/' /etc/rc.firmware
		/etc/rc.firmware pfSenseupgrade "${IMG}"
		exit
	fi
fi

# One more hack to workaround #4328
if grep -q 'mtree *-PU' /etc/rc.firmware; then
	PROC=$(ps axwww | grep '/etc/rc.firmware *pfSenseupgrade')
	PID=''
	IMG=''
	if [ -n "${PROC}" ]; then
		PID=$(echo "${PROC}" | awk '{print $1}')
		IMG=$(echo "${PROC}" | sed 's,^.*pfSenseupgrade *,,')
	fi

	if [ -n "${PID}" -a -n "${IMG}" -a -f "${IMG}" ]; then
		kill ${PID} >/dev/null 2>&1
		kill -9 ${PID} >/dev/null 2>&1
		sed -i '' -e '/^restore_chflags()/, /^}/ s/mtree *-PU/mtree -P/' /etc/rc.firmware
		/etc/rc.firmware pfSenseupgrade "${IMG}"
		exit
	fi
fi

rm /boot/kernel/*