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#!/bin/sh
get_magic_word() {
dd if=$1 bs=4 count=1 2>/dev/null | od -A n -N 4 -t x1 | tr -d ' '
}
get_fs_type() {
local magic_word="$(get_magic_word "$1")"
case "$magic_word" in
"3118"*)
echo "ubifs"
;;
"68737173")
echo "squashfs"
;;
*)
echo "unknown"
;;
esac
}
round_up() {
echo "$(((($1 + ($2 - 1))/ $2) * $2))"
}
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