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From: benjamin_place@hotmail.com (Benjamin Place)
Newsgroups: comp.lang.ada
Subject: Re: Sockets - newbie at a brick wall
Date: 12 Dec 2002 08:49:17 -0800
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john@assen.nospam.demon.co.uk (John McCabe) wrote in message news:<3df85d10.3167644@news.demon.co.uk>...
> 1) Your use of Socket_Datagram with a Connect() call. Perhaps you
> should try Socket_Stream sockets.

I *knew* I was missing something basic - the fact that "connected
datagrams" is a contradiction didn't even occur to me, though it
should have. Thanks for the critique.

Attached is corrected code for my_client.adb. This version works, and
both client and server exit normally.

--  my_client.adb
with GNAT.Sockets;   use GNAT.Sockets;
with Ada.Text_IO;    use Ada.Text_IO;


procedure My_Client is
   Socket   : Socket_Type;
   Server   : Sock_Addr_Type;
   Channel  : Stream_Access;
begin

   --  Create a client-side socket. Raise Socket_Error on error.
   Create_Socket (Socket, Family_Inet, Socket_Datagram);

   --  Initialize sockaddr_in structure with 
   --  server (remote) socket name
   Server := 
     (
      Addr => Addresses (Get_Host_By_Name ("newton.cannella.org"), 1),
      Port => 4134,
      Family => Family_Inet
     );

   Channel := Stream (Socket, Server);

   String'Output (Channel, "Hello, world!");

   Close_Socket (Socket);

end My_Client;