#!/bin/sh
#
#       This script checks for the revision of the Kernel Update
#       installed and takes the necessary action to back out changes
#	made to the devfsadm startup script
#
#

PATID=108528
BEG_REV=05
NOUNDO_SYS_API=07
rmv_all=1

INFO="$PKG_INSTALL_ROOT/var/sadm/pkg/SUNWcsr/pkginfo"
pids=`egrep '^PATCHLIST' $INFO | nawk -F= '{print $2}'`

undo_syseventd() {

fname=devfsadm

sed "s:sysevent/syseventd:devfsadm/devfseventd:"			\
	$PKG_INSTALL_ROOT/etc/init.d/$fname				| \
sed "/^# devfsadmd and rcm_daemon are started on-demand by syseventd/d"	| \
sed "/\/usr\/sbin\/devfsadm >\/dev\/msglog 2>&1/d"			| \
awk '{print $0} /devfseventd/&&/msglog/					\
	{print "        /usr/lib/devfsadm/devfsadmd >/dev/msglog 2>&1"}'| \
sed "/echo \'Configuring \/dev and \/devices\'/d"  > /tmp/$fname.$$

cp /tmp/$fname.$$ $PKG_INSTALL_ROOT/etc/init.d/$fname
rm /tmp/$fname.$$

return 0
}

undo_sys_api() {

fname=devfsadm

sed "s:-P 1 rcm_daemon:-f /usr/lib/rcm/rcm_daemon:"			\
	$PKG_INSTALL_ROOT/etc/init.d/$fname				| \
sed "s:-P 1 devfsadm:-f /usr/lib/devfsadm/devfsadmd:"			| \
sed "s:-P 1 syseventd:-f /usr/lib/sysevent/syseventd:"			| \
sed "/\/usr\/lib\/sysevent\/syseventconfd/d"				| \
sed "/\/usr\/bin\/pkill -x -u 0 -P 1 syseventconfd/d" > /tmp/$fname.$$

cp /tmp/$fname.$$ $PKG_INSTALL_ROOT/etc/init.d/$fname
rm /tmp/$fname.$$

return 0
}

for i in `echo $pids`; do
	echo $i | egrep -s $PATID || continue
	rev=`expr //$i : '.*-\(.*\)'`
	#No undo edits for rev-07 or higher
	[ $rev -ge $NOUNDO_SYS_API ] && exit
	#Remove syseventd changes for -05 higher
	[ $rev -ge $BEG_REV ] && no_sys_api=1 && continue
	#Remove all changes if highest rev is less than -05
	[ $rev -le 04 ] && rmv_all=1 && continue
done

[ "$no_sys_api" ] && undo_sys_api && exit
[ "$rmv_all" ] && undo_sys_api && undo_syseventd && exit

exit 0