RE: Sockets problem (what is)

Ron Hawkins



                    Buck Calabro
                    <Buck.Calabro@com        To:     rpg400-l@midrange.com
                    msoft.net>               cc:
                    Sent by:                 Subject:     RE: Sockets problem 
(what is)
                    rpg400-l-admin@mi
                    drange.com


                    04/22/02 12:59 PM
                    Please respond to
                    rpg400-l






Buck wrote:

We're not sure how to answer this. We connect to port 5550, but are not
sure if its standard or custom. The documentation says to use TCP/IP not
RS-232.

1) Is this a standard TCP/IP service like
   Telnet, FTP, SMTP or a custom-written server?
   Knowing the port you originally connect to
   might be a clue here.

There doesnt appear to be any signon process. We just run the connect API.

2) If custom-written, is there documentation on
   the protocol to use the server?  Stuff like
   how to sign on, log off and so on.

We wrote the socket client in-house (using Scott's book and another sockets
program to work from). Because we're not very skilled in this area, I
always suspect our code first. But we are checking the return code and are
not getting an error back.

3) Did the vendor provide the socket client or
   was it written 'in-house?'  If in-house, are
   you always checking the return code and err no?

  --buck