#   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/>.
#
# make sure redirections do not have access to the temporary environment, even
# in subshells and command substitutions

a=1
a=4 b=7 ss=4 echo $a

# use grep to avoid differences due to different system error messages
a=42
a=2 echo foo 2>&1 >&$a | { grep -q '\$a: Bad file' || echo 'redir11 bad 1'; }
a=2 echo foo 2>&1 >&$(echo $a) | { grep -q 'Bad file' || echo 'redir11 bad 2'; }

foo()
{
	local -i a
	local v=0 x=1
	a+=3
	echo $a
}

a=4 b=7 ss=4 declare -i ss
a=4 b=7 foo
echo after: $a

unset a
a=4 echo foo 2>&1 >&$(foo) | { grep -q 'Bad file' || echo 'redir11 bad 3'; }
a=1 echo foo 2>&1 >&$(foo) | { grep -q 'Bad file' || echo 'redir11 bad 4'; }
a=1 echo foo 2>&1 >&$(a=4 foo) | { grep -q 'Bad file' || echo 'redir11 bad 5'; }
echo foo 2>&1 >&$(a=4 foo) | { grep -q 'Bad file' || echo 'redir11 bad 6'; }

a=42
a=2 echo foo 2>&1 >&$a | { grep -q 'Bad file' || echo 'redir11 bad 7'; }
a=2 echo foo 2>&1 >&$(echo $a) | { grep -q 'Bad file' || echo 'redir11 bad 8'; }

unset -f foo
foo()
{
	local -i a
	local v=0 x=1
	a+=3
	echo $a >&$(ss= declare -i ss)
}

a=4 b=7 foo
echo after: $a

unset a
typeset -i a
a=4 eval echo $(echo a+=3)
a=2
a=9 echo foo >&$(echo $a)
a=2
a=9 eval echo foo >&$(echo $a)
a=2
a=9 eval echo foo '2>&1 >&$(echo $a)' | { grep -q 'Bad file' || echo 'redir11 bad 9'; }

# double expansion of filenames when used in redirection error messages
# present in bash versions back to at least bash-1.13
# this is executed in the tests subdirectory of the source directory, so there
# definitely should not be a file named `42'

unset foo
: <$((foo+=42))
echo $foo