Using GNAT.Sockets

[markwork66@yahoo.com]

We are just converting to GNAT and I am used to the traditional TCP
send/receive using an address and byte count to send/receive data. I've
used the Receive_Socket command in GNAT.Sockets and I am having trouble
receiving all the bytes. The "Last" parameter is not always equal to
the size of the message I'm sending and I don't see a way to call back
into the procedure to receive the rest of the bytes.

Further, we have many different sized messages and, from my little
playing with GNAT sockets, it seemed the "Item" parameter is the only
way to specify the number of bytes you want to receive. So, does that
mean I would have to declare an array of bytes (the "Item" parameter)
for all of my messages and the then do an unchecked conversion or a
copy_bytes routine to get the data into my Ada message data type?

Any help anybody could provide would be most appreciated.