pfctl_err
pfctl_err(pf->opts, 1, "DIOCCLRIFFLAG");
pfctl_err(opts, 1, "DIOCCLRSTATUS");
pfctl_err(opts, 1, "%s", __func__);
pfctl_err(opts, 1, "DIOCCLRSRCNODES");
pfctl_err(opts, 1, "DIOCCLRSTATUS");
void pfctl_err(int, int, const char *, ...);
pfctl_err(opts, 1, "DIOCOSFPFLUSH");