LOCAL DATAGRAM RECVFROM RETURNS WRONG SENDER ADDRESS

```
Description: The recvfrom logic for local datagram sockets returns the
incorrect sender "from" address. Instead, it returns the
receiver's "to" address. This means that returning a reply
to the "from" address receiver sending a packet to itself.
Status: Open
Priority: Medium High. This makes using local datagram sockets in
anything but a well-known point-to-point configuration
impossible.
```