zip

type Function uint8

type GetNetInfoPacket struct {
	// Destination socket = 6
	// DDP type = 6
	// ---
	// ZIP command = 5
	// Flags = 0 (reserved)
	// Four more bytes of 0 (reserved)
	// Zone name length (1 byte)
	ZoneName string
}

type GetNetInfoReplyPacket struct {
	// Source socket = 6
	// DDP type = 6
	// ---
	// ZIP command = 6
	ZoneInvalid  bool // 0x80 - "set if the zone name in the request is invalid for the network from which the request was sent"
	UseBroadcast bool // 0x40 - "set for data links that do not support multicast"
	OnlyOneZone  bool // 0x20 - "set if the network's zone list contains only one zone name"
	// Remainder of flags reserved
	NetStart ddp.Network
	NetEnd   ddp.Network
	// Zone name length (1 byte)
	ZoneName string
	// Multicast address length (1 byte)
	MulticastAddr ethernet.Addr
	// Only if ZoneInvalid flag is set:
	// Default zone length (1 byte)
	DefaultZoneName string
}

type GetZonesPacket struct {
	// "These requests always ask for a single response packet."
	// TReq   = 0b01000000
	// Bitmap = 0b00000001
	TID uint16
	// --- ATP user bytes
	Function Function // 7, 8, or 9
	// Pad uint8 = 0
	StartIndex uint16 // always 0 for
}

type GetZonesReplyPacket struct {
	// TResp    = 0b10000000
	// Sequence = 0
	TID uint16
	// --- ATP user bytes
	LastFlag bool // not used for GetMyZone
	// Pad uint8 = 0
	// ZoneCount uint16
	// --- ATP data bytes
	Zones []string // length-prefixed
}

type QueryPacket struct {
	// Function = 1
	// NetworkCount uint8
	Networks []ddp.Network
}

type ReplyPacket struct {
	// Function = 2 or 8
	Extended     bool
	NetworkCount uint8
	// "Replies contain the number of zones lists indicated in the Reply header"
	// and
	// "Extended Replies can contain only one zones list. ...
	// (the network numbers in each pair will all be the same in an Extended
	// Reply). The network count in the header indicates, not the number of zone
	// names in the packet, but the number of zone names in the entire zones
	// list for the requested network, which may span more than one packet."
	// and
	// "Note: Extended ZIP Replies may also be used for responding to ZIP
	// queries with zones lists that all fit in one Reply packet. In this case,
	// the network count will be equal to the number of zone names in the
	// packet"
	Networks map[ddp.Network][]string
}