packet p1(20);
putint(p1, N_EDITF);
//... put N_EDITF stuff to packet p1
packet p2(p1.len+12, ENET_PACKET_FLAG_RELIABLE);
putint(p2, N_CLIENT);
int position_for_cn=p2.len;
putint(p2, 0); //stub for cn WARNING THIS WORKS IF CN < 128 (which should be so in vanilla server/client) ALSO BE CAREFUL NOT TO SEND TO BOTS, WHICH HAVE CN >=128
putint(p2, p1.len);
p2.put(p1.buf, p1.len);
loopi(clients){
	p2.buf[position_for_cn]=i;
	sendpacket(blah, I don't remember the args);
}