+ ( find /etc/config /etc/passwd /etc/group /etc/dropbear \
+ /etc/firewall.user /etc/rc.local -type f;
+ opkg list-changed-conffiles ) | sort -u > "$file"
+ return 0
+}
+
+add_overlayfiles() {
+ local file="$1"
+ find /overlay/etc/ -type f | sed \
+ -e 's,^/overlay/,/,' \
+ -e '\,/META_[a-zA-Z0-9]*$,d' \
+ -e '\,/functions.sh$,d' \
+ -e '\,/[^/]*-opkg$,d' \
+ > "$file"