EveDtlsTransport.recvFrom

ptrdiff_t recvFrom(ubyte[] buffer, out DatagramEndpoint sender) @safe

Receives a buffered datagram.

Returns datagrams previously fed via feedDatagram. When no datagrams are available, returns IoResult.WOULD_BLOCK.

`buffer`	Destination buffer for the datagram payload.
`sender`	Output parameter set to the sender's address.

Bytes received, or a negative IoResult value.