#!/bin/sh
# Make sure that touch gives reasonable diagnostics when applied
# to an unwritable directory owned by some other user.

# Copyright (C) 2003, 2004, 2005, 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
  touch --version
fi

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

test=../../src/test
if $test -w /; then
  echo Skipping because you have write access to /.
  (exit 77); exit 77
fi

if $test -O / || $test -G /; then
  echo Skipping because you own /.
  (exit 77); exit 77
fi

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

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

fail=0

# Before fileutils-4.1, we'd get the following misleading
# diagnostic instead of `...: Permission denied'.
# touch: creating `/': Is a directory
touch / > out 2>&1 && fail=1

# On SunOS4, EPERM is `Not owner'.
# On some *BSD systems it's `Operation not permitted'.
for msg in 'Not owner' 'Operation not permitted' 'Permission denied'; do
  cat > exp <<EOF
touch: setting times of \`/': $msg
EOF

  cmp out exp > /dev/null 2>&1 && { match=1; break; }
done
test "$match" = 1 || fail=1

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

(exit $fail); exit $fail