#!/bin/bash
#remaster lib
[ -d "<LIBDIR>" ] || { echo "LIBDIR not exist"; exit 1; }

#chroot_initial [chroot_dir]
function chroot_initial() {
	echo -n "initial chroot ... "

	#check chroot dir
	chroot_dir="$1"
	[ -d "$chroot_dir" ] || {
		echo "### ERROR ### chroot_initial: chroot directory not exist"
		return 12
	}

	#mount virus definitions
	mount -t tmpfs tmpfs "$chroot_dir/tmp"
	mount -t tmpfs tmpfs "$chroot_dir/root"
	mount --bind /dev "$chroot_dir/dev"
	mount --bind /proc "$chroot_dir/proc"

	rm "$chroot_dir/etc/resolv.conf"
	cp "/etc/resolv.conf" "$chroot_dir/etc/resolv.conf"

	echo "done"
}

#this func is standalone executable
[ -n "$1" ] && {
  chroot_initial $@
}