#!/bin/bash
# Generate an automounter entry automatically
# for automount /mnt/auto program this_script
# (C) Klaus Knopper 2002
# WARNING: This script is used for removable media in KNOPPIX,

fstype(){
[ -n "$1" ] || return 1

while read device mountpoint filesystem relax; do
case "$device" in *$1*) echo "$filesystem"; return 0;; esac
done <<EOT
$(cat /proc/mounts)
EOT

dd if="$1" count=1 bs=1024 >/dev/null 2>&1 || return 2
FILE="$(LANG=C LC_ALL=C LC_MESSAGES=C file -Ls "$1")"
[ "$?" = "0" ] || return 2

FILESYSTEMS=""
case "$FILE" in
*[Ff][Aa][Tt]*|*[Xx]86*) FILESYSTEMS="vfat msdos ntfs";;
*[Rr][Ee][Ii][Ss][Ee][Rr]*)  echo "reiserfs"; return 0;;
*[Xx][Ff][Ss]*)  echo "xfs"; return 0;;
*[Ee][Xx][Tt]3*) echo "ext3"; return 0;;
*[Ee][Xx][Tt]2*) echo "ext2"; return 0;;
*[Ss][Ww][Aa][Pp]*) echo "swap"; return 0;;
esac
TMPDIR="/tmp/autmount.${1##*/}.$$.dir"
mkdir -p "$TMPDIR" || return 3
FS=""
read LOGLEVEL relax < /proc/sys/kernel/printk
echo "0" >/proc/sys/kernel/printk
for f in $FILESYSTEMS $(</etc/filesystems); do
mount -r -t "$f" "$1" "$TMPDIR" >/dev/null 2>&1 && { umount "$TMPDIR"; FS="$f"; break; }
umount -f "$TMPDIR" >/dev/null 2>&1
done
echo "$LOGLEVEL" >/proc/sys/kernel/printk
rmdir "$TMPDIR"
[ -n "$FS" ] && echo "$FS" || return 4
}

rw="rw"
device="/dev/${1##*/}"
case "$1" in
floppy)     [ -s /etc/sysconfig/floppy ] || exit 1; device="/dev/fd0";;
cdrom*)     rw="ro";;
dvd*)       rw="ro";;
esac

fs="$(fstype "$device")"

[ "$?" = "0" ] || exit 1

case "$fs" in
*fat|msdos) options="${rw},uid=knoppix,gid=knoppix,umask=000";;
ntfs)       options="ro,uid=knoppix,gid=knoppix,umask=0222";;
iso9660)    options="ro";;
*)          options="${rw}";;
esac

MNTLINE="-fstype=$fs,users,exec,$options	:$device"

echo "$MNTLINE"