SSendPatch (0x40)
Previous: SActionCoolTime | Server action index | Next: SExchange
SSendPatch is server-to-client action 0x40 in the 4.21 protocol.
Direction: server to client
Encrypted: No. See Sequence and XOR Transformation.
Payload offsets begin with the first byte after the action. The frame marker, frame length, action, sequence, and trailing zero are excluded.
Payload format
| Offset | Width | Field | Established meaning |
|---|---|---|---|
0x00 | payload_length | unknown_00 | Payload bytes whose field boundaries are not yet mapped. |
Handler functions
| Function address | Current IDA name | Role |
|---|---|---|
Darkages.exe:0x004955C0 | sub_4955C0 | Accepts the action in its pane’s Event type 9 packet handler. |
Handler notes
Darkages.exe:0x004955C0 sub_4955C0. XOR bypass. May be used during login or lobby.
Schema status
The 4.21 client accepts this action in the listed function. Payload field division remains a placeholder until its readers and client-side effects are traced end to end.