#####################################################################
#!/bin/ksh
#
#ifdef __USAGE
#%C [-i]
#
#Examples:
#In sysinit:
#%C
#When Changing USB devices:
#%C -i
#
#NOTE:
#Run with "-i" option when changing USB storage devices
#endif
#
#               Copyright (c) ABB Inc. 2006
#####################################################################
#set -v

while getopts i opt $*
do
	case $opt in
		i)	input="Y"
			;;
	esac
done
#
#===================================================
# Create /usr/tmp dir if it doesn't exist
#
if [ -d /usr/tmp ]
then
	echo ""
else
	mkdir /usr/tmp
fi
#
#===================================================
# Warn about the consequences
if test "$input"
then
	echo "------------------------->  WARNING  <--------------------------------"		
	echo "Remounting USB devices may disrupt data archiving, backup or retrieval"
	echo "currently being performed on the mounted devices."
	echo "Proceed with caution."
	echo "" 
	tmp=""
	while [ -z "$tmp" ]; do
		echo "Remount anyway [Y/N]:"
		read tmp
		if [ -n "$tmp" ]; then
			if [ "$tmp" = "Y" ]; then
				restart="Y"
			elif [ "$tmp" = "y" ]; then
				restart="Y"
			elif [ "$tmp" = "N" ]; then
				exit 0
			elif [ "$tmp" = "n" ]; then
				exit 0
			else
				tmp=""
			fi
		fi
	done
fi

#===================================================
# List existing USB FAT file system
tgt=$(/bin/ls /dos/ 2>/dev/null)
if test "$tgt"
then 
		echo "----------------------------------------------------------------------"
		echo "Checking FAT file system:"
		echo ""
		/bin/slay -fQ Dosfsys 2>/dev/null
        /bin/df -h /dos/* 2>/dev/null
		echo ""
		echo "Unmounting FAT file system..."
		while test "$tgt"
		do
			todo=`echo "$tgt" |awk '{print $1}'`
			echo "/dos/$todo"
			/bin/umount /dos/$todo
			if [ $? -ne 0 ]
			then
				echo "Please remove the source of the umount command failure!"
				echo "You may (<CTRL-C>) stop the script and run it again after the failure condition is corrected."
				sleep 5
			fi
			tgt=$(/bin/ls /dos/ 2>/dev/null)
		done
fi
sleep 2
#
#===================================================
# List existing CDs
/bin/prefix -D /cd 2>/dev/null
tgt=$(/bin/ls / |grep cd 2>/dev/null)
if test "$tgt"
then  
		echo "Checking mounted CDs:"
		while test "$tgt"
		do
			todo=`echo "$tgt" |awk '{print $1}'`
			echo "/$todo"
			/bin/umount /$todo
			if [ $? -ne 0 ]
			then
				echo "Please remove the source of the umount command failure!"
				echo "You may (<CTRL-C>) stop the script and run it again after the failure condition is corrected."
				sleep 5
			fi
			tgt=$(/bin/ls / | grep cd 2>/dev/null)
		done
fi
sleep 2
#
#
#===================================================
tgt=$(/bin/ls /dev/USB* 2>/dev/null)
if test "$tgt"
then 
		echo "Unmounting USB (umass) devices:"
		/bin/find /dev/USB* -print -exec /bin/umount {}\; 2>/dev/null
		sleep 5
		echo "Removing USB (umass) devices:"
		/bin/find /dev/USB* -print -exec /bin/rm -f {}\; 2>/dev/null
fi
#
#===================================================
tgt=$(/bin/ls /usr/tmp/USBfd.out 2>/dev/null)
if test "$tgt"
then 
#		echo "Unmounting USB (umass) floppy devices:"
		while read tgt
		do
			echo "$tgt"
			/bin/umount "$tgt"
			if [ $? -ne 0 ]
			then
				echo "Please remove the source of the umount command failure!"
				echo "You may (<CTRL-C>) stop the script and run it again after the failure condition is corrected."
				sleep 5
			fi
			sleep 5
			/bin/rm -f "$tgt"
			chktgt=$(/bin/ls $tgt 2>/dev/null)
			if test "$chktgt"
			then 
				echo "ERROR: Removing $tgt failed. Please re-run this command. Exiting..."
				exit
			fi
		done</usr/tmp/USBfd.out
		/bin/rm -f /usr/tmp/USBfd.out
fi
#===================================================
#Test to see if already done
running=$(/bin/ls /dev/USB* 2>/dev/null)
if test "$running"
then
       echo "ERROR: Unmounting /dev/USB* failed. Please trubleshoot then re-run this command..."
	   sleep 3
	   exit
fi
#
#===================================================
#Stop any USB FAT processes so we can start ok
#
echo "Slaying CD fsys..."
/bin/slay -fQ Iso9660fsys 2>/dev/null
echo "Slaying FAT fsys..."
/bin/slay -fQ Fatfsys 2>/dev/null
sleep 3
#
#
#===================================================
#If master Fsys is running, slay it...
#
running=$(/bin/sin | /bin/grep Fsys.umass)
if test "$running"
then
		echo "Slaying Fsys.umass..."
		/bin/slay -fQ Fsys.umass 2>/dev/null
		sleep 5
fi
#
#===================================================
#Give some time for USB device replacement
#
if test "$input"
then
	echo "----------------------------------------------------------------------"
	echo "Please remove/insert USB device(s) and hit ENTER key..."
	read tgt
fi
#
#===================================================
#If master I/O USB driver is not running, run it...
running=$(/bin/sin | /bin/grep io-usb)
if test -z "$running"
then
        echo "Starting io-usb..."
        nohup /bin/io-usb &
		sleep 5
fi
#
#===================================================
#Check if a USB device exists else leave
#
# 
tgt=$(/bin/ls /dev/us* 2>/dev/null)
if test -z "$tgt"
then
        echo "No USB device present. Exiting..."
		echo "Starting CD fsys..."
		/bin/Iso9660fsys
		echo "Starting FAT fsys..."
		/bin/Fatfsys
		sleep 5
		/bin/prefix -A /cd=/cd0
        exit
fi
present=$(/bin/usb | /bin/grep Device)
if test -z "$present"
then
        echo "No USB device present. Exiting..."
		echo "Starting CD fsys..."
		nohup /bin/Iso9660fsys
		echo "Starting FAT fsys..."
		nohup /bin/Fatfsys
		sleep 5
		/bin/prefix -A /cd=/cd0
        exit
fi
#
#===================================================
# Start Fsys.umass
#
running=$(/bin/sin | /bin/grep Fsys.umass)
if test -z "$running"
then
	echo "Starting Fsys.umass..."
	/bin/ls -c1 /dev/fd* |/bin/sort >/usr/tmp/fd1.out
	nohup /bin/Fsys.umass fsys -NFsys.umass -n Direct-Access=USBhd -n Sequential-Access=USBtp -n WORM=USBwo -n CD-ROM=USBcd -n Optical=USBmo
	sleep 10
	/bin/ls -c1 /dev/fd* |/bin/sort >/usr/tmp/fd2.out
	/bin/diff -n /usr/tmp/fd1.out /usr/tmp/fd2.out |grep "/dev/fd" >/usr/tmp/USBfd.out
fi
#
#===================================================
# Mount partitions
#
tgt=$(/bin/ls /dev/USB* 2>/dev/null)
if test "$tgt"
then 
		echo "Mounting USB (umass) partitions:"
		/bin/find /dev/USB* ! -name "USBcd*" -print -exec /bin/mount -p {}\;
fi
#
#===================================================
echo "Starting CD fsys..."
/bin/Iso9660fsys
echo "Starting FAT fsys..."
/bin/Fatfsys
sleep 5
/bin/prefix -A /cd=/cd0
#
#===================================================
tgt=$(/bin/ls -c1  /dos/ 2>/dev/null)
if test "$tgt"
then 
		echo "Mounted the following FAT storage:"
        /bin/df -h /dos/* 2>/dev/null
fi
#
#===================================================
if test "$input"
then
	echo ""
	echo "----------------------------------------------------------------------"
	echo "Please hit ENTER key to exit..."
	read tgt
fi