#!/bin/rc

if(! ~ $#* 1){
	echo 'usage: isventibloom /dev/sdC0/part' >[1=2]
	exit usage
}

arg=$1
if(! cmp -s <{dd -quiet 1 -if $arg -bs 1024 |
	dd -quiet 1 -bs 4 -count 1 | xd -b | sed 1q} <{echo '0000000  b1 00 4e ad'})
	exit notbloom
exit 0