#!/bin/sh

# ensure that du and wc handle --files0-from=DIR

# Copyright (C) 2011-2018 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 <https://www.gnu.org/licenses/>.

. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src

print_ver_ du wc

mkdir dir

# Skip this test if reading from a directory succeeds.

# In that case, using --files0-from=dir would yield garbage,

# interpreting the directory entry as a sequence of

# NUL-separated file names.

cat dir > /dev/null && skip_ "cat dir/ succeeds"

for prog in du wc; do

  $prog --files0-from=dir > /dev/null 2>err && fail=1

  printf "$prog: dir:\n" > exp || fail=1

  # The diagnostic string is usually "Is a directory" (ENOTDIR),

  # but accept a different string or errno value.

  sed "s/dir:.*/dir:/" err > k; mv k err

  compare exp err || fail=1

done

Exit $fail