#!/bin/sh -e

input="$1"
[ -f "$input" ] || exit 1
signature="$(hexdump -e '1/4 "%x"' -s 0 -n 4 "$input")"
[ "$signature" = "4f5a4c89" ] && exec lzop -cd "$input"
[ "$signature" = "587a37fd" ] && exec bundled xz -cd "$input"
echo "unknown signature: $signature"
exit 1