LPF_OUTPUT
} else if (pp->filters[LPF_OUTPUT]) {
filtcmd = pp->filters[LPF_OUTPUT];
if (pp->filters[LPF_OUTPUT] && !pp->filters[LPF_INPUT] && !of_pid) {
if ((cp = strrchr(pp->filters[LPF_OUTPUT], '/')) == NULL)
cp = pp->filters[LPF_OUTPUT];
execl(pp->filters[LPF_OUTPUT], cp, width, length,
pp->filters[LPF_OUTPUT]);