set -e
trap 'echo Broken pipe -- test failed' PIPE

P=${TMPDIR:-/tmp}
cd $P
T=$(mktemp -d sh-test.XXXXXX)
cd $T

mkfifo input output error
HISTFILE=/dev/null ${SH} +m -i <input >output 2>error &
exec 3>input
{
	# Command not found, containing slash
	echo '/var/empty/nonexistent' >&3
	# Read error message, shell will read new input now
	read dummy <&5
	# Execute bad command again
	echo 'fc -e true; echo continued' >&3
	read dummy <&5
	read line <&4 && [ "$line" = continued ] && : ${rc:=0}
	exec 3>&-
	# Old sh duplicates itself after the fc, producing another line
	# of output.
	if read line <&4; then
		echo "Extraneous output: $line"
		rc=1
	fi
} 4<output 5<error
exec 3>&-

rm input output error
rmdir ${P}/${T}
exit ${rc:-3}