#   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/>.
#
: ${TMPDIR:=/var/tmp}
TMPFILE=$TMPDIR/exitcode
trap 'rm -f $TMPFILE' 0

rm -f $TMPFILE
set -e
# we normalize the exit code to accommodate false returning 255 on Solaris
exit_handler() { echo "exit code: $(( $? != 0 ))" ; touch $TMPFILE; }
false() { ! :; }
notfound() { nosuchcommand ; }
syntaxerror() { !:; }

main()
{(
    trap exit_handler 0
    "$@" >> /dev/null 2>&1
)}
main "$@"
echo "after main: should not get here"