#!/bin/sh
# Ensure that several programs work fine, even with stdout initially closed.
# This is effectively a test of closeout.c's close_stdout function.

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

PATH="$pwd/../..:$PATH"
export PATH

fail=0

# Ensure these exit successfully, even though stdout is closed,
# because they generate no output.
touch a
cp a b >&- || fail=1
test -f b || fail=1
chmod o-w . >&- || fail=1
ln a c >&- || fail=1
rm c >&- || fail=1
mkdir d >&- || fail=1
mv d e >&- || fail=1
rmdir e >&- || fail=1
touch e >&- || fail=1
sleep 0 >&- || fail=1
$pwd/../../src/true >&- || fail=1
$pwd/../../src/printf '' >&- || fail=1

# Ensure these fail, because stdout is closed and they *do*
# generate output.
$pwd/../../src/printf 'foo' >&- 2>/dev/null && fail=1
cp --verbose a b >&- 2>/dev/null && fail=1

(exit $fail); exit $fail