TOF_SACKPERM
to->to_flags |= TOF_SACKPERM;
(!(to.to_flags & TOF_SACKPERM) ||
to->to_flags |= TOF_SACKPERM;
case TOF_SACKPERM:
to.to_flags |= TOF_SACKPERM;
(to.to_flags & TOF_SACKPERM) == 0)
to.to_flags |= TOF_SACKPERM;
(to.to_flags & TOF_SACKPERM) == 0)
to.to_flags |= TOF_SACKPERM;
if (to->to_flags & TOF_SACKPERM)
to.to_flags |= TOF_SACKPERM;