Cube  Diff

{
	@autoreleasepool {
		if (mapname.length > 0)
			save_world(mapname);
		changemap(mapname);
		mapname = getclientmap();
		int mapsize;
		uchar *mapdata = readmap(mapname.UTF8String, &mapsize);
		if (!mapdata)
		OFData *mapdata = readmap(mapname);
		if (mapdata == nil)
			return;
		ENetPacket *packet = enet_packet_create(
		    NULL, MAXTRANS + mapsize, ENET_PACKET_FLAG_RELIABLE);
		uchar *start = packet->data;
		uchar *p = start + 2;
		putint(p, SV_SENDMAP);
		sendstring(mapname.UTF8String, p);
		putint(p, mapsize);
		if (65535 - (p - start) < mapsize) {
		if (65535 - (p - start) < mapdata.count) {
			conoutf(
			    @"map %s is too large to send", mapname.UTF8String);
			free(mapdata);
			enet_packet_destroy(packet);
			return;
		};
		memcpy(p, mapdata, mapsize);
		}
		memcpy(p, mapdata.items, mapdata.count);
		p += mapsize;
		free(mapdata);
		*(ushort *)start = ENET_HOST_TO_NET_16(p - start);
		enet_packet_resize(packet, p - start);
		sendpackettoserv(packet);
		conoutf(@"sending map %s to server...", mapname.UTF8String);
		sprintf_sd(msg)(
		    "[map %s uploaded to server, \"getmap\" to receive it]",
		    mapname.UTF8String);