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osdp/command/
mfg.rs

1//! `osdp_MFG` (`0x80`) — manufacturer-specific command.
2//!
3//! # Spec: §6.22
4//!
5//! Body is `OUI (3 bytes)` + opaque vendor data.
6
7use crate::error::Error;
8use alloc::vec::Vec;
9
10/// `osdp_MFG` body.
11#[derive(Debug, Clone, PartialEq, Eq)]
12pub struct Mfg {
13    /// IEEE-assigned OUI for the vendor.
14    pub oui: [u8; 3],
15    /// Vendor-specific payload.
16    pub payload: Vec<u8>,
17}
18
19impl Mfg {
20    /// Encode.
21    pub fn encode(&self) -> Result<Vec<u8>, Error> {
22        let mut out = Vec::with_capacity(3 + self.payload.len());
23        out.extend_from_slice(&self.oui);
24        out.extend_from_slice(&self.payload);
25        Ok(out)
26    }
27
28    /// Decode.
29    pub fn decode(data: &[u8]) -> Result<Self, Error> {
30        if data.len() < 3 {
31            return Err(Error::MalformedPayload {
32                code: 0x80,
33                reason: "MFG requires 3-byte OUI",
34            });
35        }
36        let mut oui = [0u8; 3];
37        oui.copy_from_slice(&data[..3]);
38        Ok(Self {
39            oui,
40            payload: data[3..].to_vec(),
41        })
42    }
43}