Sockets, Streams, and Element_Arrays: Much confusion

[Mark Gardner <magardner2017@gmail.com>]

Hello, I've been having a bit of difficulty doing some UDP socket 
programming in Ada. As outlined in my stackoverflow question here 
(https://stackoverflow.com/q/74953052/7105391), I'm trying to reply to 
messages I am getting over UDP.

GNAT.Sockets gives me a Stream_Element_Array, which I can't find any 
documentation on how to make use of other than "You should also be able 
to get a Stream, which you should use instead" (About ten years ago, on 
this very newsgroup, somebody said not to use streams with UDP, or at 
least not GNAT.Sockets.Stream).

Adasockets gives me a String, which I can work with, except it throws 
away the from data recvfrom gives it, apparently making it impossible to 
reply to the querying address.

At this point, I'm half-tempted to make my own binding, but as I've 
never done that sort of thing before, I thought I'd ask the wisdom of 
the Usenet if there is a way to convert a Stream_Element_Array into the 
exotic types of Unsigned_16 and String.