#!/bin/sh
error() { echo "$@" 1>&2; }
fail() { [ $# -eq 0 ] || error "$@"; exit 1; }

rootd=${1}
[ -n "${rootd}" -a -d "${rootd}" ] || exit 1

rm -Rf "$rootd/home/default"

# no need for visudo
rm -f "$rootd/usr/sbin/visudo"

# buildroot symlinks stuff in /var to /tmp
links="lib/pcmcia pcmcia lock cache log spool pcmcia"
for f in $links; do
	p="/var/$f"
	if [ -L "$rootd/$p" ]; then
		rm "$rootd/$p" ||
			fail "failed to remove file $p"
	elif [ -d "$rootd/$p" ]; then
		rmdir "$rootd/$p" ||
			fail "rmdir $p failed"
	else
		[ -e "$rootd/$p" ] &&
			fail "don't know what to do with $p. not dir or link"
	fi
done
mkdir -p $rootd/var
( cd "$rootd/var" && mkdir -p $links ) ||
   fail "failed to create directories in /var"

( cd "$rootd/var" && rm -Rf tmp run &&
   ln -s ../run run && ln -s ../run/var.tmp tmp ) ||
   fail "failed to make var/run and var/tmp"

rm -f $rootd/etc/resolv.conf &&
   ln -sf ../run/resolv.conf "$rootd/etc/resolv.conf" ||
   fail "failed to create resolv.conf symlink"

if [ -L "$rootd/sbin/blkid" -a -x "$rootd/usr/sbin/blkid" ]; then
   rm -f "$rootd/sbin/blkid"
fi