pf_addr_inc
e->af += pf_addr_inc(&e->addr);
pf_addr_inc(&rpool->counter, af);
pf_addr_inc(&rpool->counter, af);
pf_addr_inc(&rpool->counter, af);
pf_addr_inc(&rpool->counter, af);
pf_addr_inc(addr, af);
void pf_addr_inc(struct pf_addr *, sa_family_t);