#!/bin/sh

# ls -al /proc/$$/fd
# set -x

if [[ ! $NOSTD && $STDIN =~ [0-9]+ ]]; then
	eval exec "0>&$STDIN"
else
	exec 0>/dev/null
fi
unset STDIN

if [[ ! $NOSTD && $STDOUT =~ [0-9]+ ]]; then
	eval exec "1>&$STDOUT"
else
	exec 1>/dev/null
fi
unset STDOUT

for fd in /proc/self/fd/*; do
	fd=${fd/*\/}
	(( $fd > 2 )) && eval "exec $fd<&-"
done
unset NOSTD

exec "${@}"