#!/bin/sh
# name : /usr/sbin/updfstab
# updfstab for kernel 2.6
# this script is automatically called by hotplug at each plug/unplug event of an usb-storage device. (usb keys, mp3 jukeboxes, digital cameras...)

# be sure the drivers are loaded
modprobe usb-storage vfat
# First remove all updfstab-managed devices from fstab
# existing but removed entries are just added again later
# mntpoint are not removed (unuseful)
grep -v \#serial /etc/fstab > /etc/fstab.updated
if diff /etc/fstab /etc/fstab.updated >/dev/null 2>&1; then
  rm /etc/fstab.updated
else
  if [ -s /etc/fstab.updated ]; then
    cat /etc/fstab.updated > /etc/fstab
    #Xdialog --msgbox "removed $p ${mntpoint} from fstab" 20 30 # debug
  fi
  rm /etc/fstab.updated
fi

# wait 5 seconds until something appears
timeout=5 # timeout in tenths of second for giving up
while true; do
  # list devices
  list="`ls /sys/bus/usb/drivers/usb-storage`"
  if test "$list"; then break; fi
  sleep 0.1
  timeout=$((${timeout}-1))
  if [ $timeout -eq 0 ]; then exit; fi
done

for i in $list; do
  j="`printf $i | sed 's/:.*//g'`" # exemple : $i="3-2:1.0" -> we extract $j="3-2"
  # for each device, get infos
  host="`ls -1 /sys/bus/usb/drivers/usb-storage/$i | grep host`" # used to find the /dev entry
  manufacturer="`cat /sys/bus/usb/devices/$j/manufacturer | sed 's/[ \/]//g'`" # used to chose a mountpoint
  product="`cat /sys/bus/usb/devices/$j/product`" # not used (could be used in mnt name)
  serial="`cat /sys/bus/usb/devices/$j/serial`" # used to recognize the entry in fstab
  #Xdialog --msgbox "host=$host\nmanufacturer=$manufacturer\nproduct=$product\nserial=$serial" 20 30 # debug
  # find partitions
  partitions=`find /dev/scsi/${host} -type b -name "part*"`
  
  # for each partition, create a mountpoint and an fstab entry
  for p in ${partitions}; do
    # build a mountpoint name
    if [ `echo ${partitions}|wc -w` -eq 1 ]; then
      mntpoint="/mnt/${manufacturer}" # if only one partition
    else
      mntpoint="/mnt/${manufacturer}_`basename $p`" # if several partitions
    fi
    # create the mountpoint and the fstab entry
      if [ ! -d "${mntpoint}" ]; then
        mkdir ${mntpoint}
	#Xdialog --msgbox "created ${mntpoint}" 10 30 # debug
      fi
      if ! grep "#serial${serial}" /etc/fstab >/dev/null 2>&1; then
        echo "$p $mntpoint auto sync,user,noauto,rw,iocharset=utf8 0 0 #serial${serial}" >> /etc/fstab
        #Xdialog --msgbox "added $p ${mntpoint} in fstab" 10 30 # debug
      fi
  done
done