pfctl_addrprefix
res[0] = pfctl_addrprefix(src_node_kill[0],
res[1] = pfctl_addrprefix(src_node_kill[1],
res[0] = pfctl_addrprefix(state_kill[0],
res[1] = pfctl_addrprefix(state_kill[1],
pfctl_addrprefix(char *, struct pf_addr *, int);
res = pfctl_addrprefix(state_kill[1], &kill.rt_addr.addr.v.a.mask,