Function msgpack_unwrap_bin

examples/nomadnet/src/main.cpp:212–221

Decode a msgpack `bin` value into `out`. Returns true on success. The nomadnet response delivered to on_response by microReticulum is the msgpack-encoded `response` value from the server-side `umsgpack.packb([request_id, response])` envelope. nomadnet's serve_page returns Python `bytes`, which always serializes as msgpack `bin` — so unwrapping with bin_t is sufficient for the NomadNet us

// NomadNet use case. (Mirrors the same Unpacker pattern that
// Link.cpp:1251-1255 uses to decode single-packet RESPONSE envelopes.)
static bool msgpack_unwrap_bin(const RNS::Bytes& packed, RNS::Bytes& out) {
	if (packed.size() < 1) return false;
	MsgPack::Unpacker u;
	u.feed(packed.data(), packed.size());
	if (!u.isBin()) return false;
	MsgPack::bin_t<uint8_t> bin;
	u.deserialize(bin);
	out = RNS::Bytes(bin.data(), bin.size());
	return true;
}

// Write the raw response bytes (which we couldn't parse cleanly) to a
// temp file. Returns the file path on success, empty string on failure.