mkcfs

fsType=`echo $0 | cut -d'.' -f2`

if test $fsType == $0
then
#filesystem type is not part of the executable name
        if test $# != 4
        then
        #filesystem type was NOT given as parameter
                echo "filesystem type missing!"
                echo "$0 <filesystem> <device> <cypher> <keysize>"
                exit 100
        else
        #filesystem type was given as parameter
                fsType=`echo $1`
                dev=`echo $2`
                cypher=`echo $3`
                keysize=`echo $4`
        fi
else
        if test $# != 3
        then
                echo "$0 <device> <cypher> <keysize>"
                exit 105
        else
                dev=`echo $1`
                cypher=`echo $2`
                keysize=`echo $3`
        fi
fi

#check if the device to format exists
if test $dev
then
        if test -b $dev
        then
                echo "device \"$dev\": OK "
        else
                echo "device \"$dev\": not found!"
                exit 101
        fi
else
        echo "no device name given!"
        exit 102
fi

#check for the formating programm
if test -f /sbin/mkfs.$fsType
then
        echo "format command \"mkfs.$fsType\" found"
else
        echo "can't find formating programm for \"$fsType\"!"
        exit 103
fi

mappername=`echo $dev | sed 's/\//_/g'`

cryptsetup remove $mappername 2> /dev/null
cryptsetup -y -c $cypher -s $keysize create $mappername $dev
mkfs.$fsType /dev/mapper/$mappername