#!/bin/sh
# Make sure chgrp gives the right diagnostic for a readable,
# but inaccessible directory.

# Copyright (C) 2003, 2006 Free Software Foundation, Inc.

# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.

# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.

# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

if test "$VERBOSE" = yes; then
  set -x
  chgrp --version
fi

. $srcdir/../group-names
set _ $groups; shift
g1=$1
g2=$2

. $srcdir/../lang-default
PRIV_CHECK_ARG=require-non-root . $srcdir/../priv-check

pwd=`pwd`
t0=`echo "$0"|sed 's,.*/,,'`.tmp; tmp=$t0/$$
trap 'status=$?; cd "$pwd" && chmod -R u+rwx $t0 && rm -rf $t0 && exit $status' 0
trap '(exit $?); exit $?' 1 2 13 15

framework_failure=0
mkdir -p $tmp || framework_failure=1
cd $tmp || framework_failure=1
mkdir -p d/no-x/y || framework_failure=1
chmod u=rw d/no-x || framework_failure=1

if test $framework_failure = 1; then
  echo "$0: failure in testing framework" 1>&2
  (exit 1); exit 1
fi

fail=0

# This must exit nonzero.
chgrp -R $g2 d >/dev/null 2>out && fail=1
cat <<\EOF > exp
chgrp: `d/no-x': Permission denied
EOF

# With native fdopendir, du uses a different code path.
cat <<\EOF > exp-native-fdopendir
chgrp: cannot access `d/no-x/y': Permission denied
EOF

if cmp out exp >/dev/null 2>&1; then
  :
else
  if cmp out exp-native-fdopendir; then
    :
  else
    fail=1
  fi
fi

test $fail = 1 && diff out exp 2> /dev/null

(exit $fail); exit $fail