Re: Sockets client in RPGIV

["Jim Franz" <jfranz@xxxxxxxxxxxx>]

if your transaction is a financial tran, especially credit cards & banking,
the check digit
is standard. Just be aware some routines are "home grown", others are more
standard.
If it's credit card "lrc" let me know, I have the rpg code (which came from
this list
several years ago). Watch out for things like a valid "blank" in the last
character of the
string. Don't cat the check digit to the last non blank character. Took 2
months of
live operation before that happened and tran rejected.
jim franz

----- Original Message -----
From: "DeLong, Eric" <EDeLong@Sallybeauty.com>
To: <rpg400-l@midrange.com>
Sent: Tuesday, January 29, 2002 5:28 PM
Subject: Sockets client in RPGIV


> Group,
>
> I got a q+d project this morning to write a socket client app.  The
> programmer at the other end wants to include a check digit to validate the
> record before processing.  I always thought TCP handled all data
validation,
> eliminating the need to add this layer of validation.  He claims that bad
> data and/or garbled records will still sometimes be returned to the
> application, making this additional testing and process control necessary.
> I have doubts.  Can anyone confirm that this is necessary, or even useful?
> TIA.
>
> Eric DeLong
> Sally Beauty Company
> MIS-Sr. Programmer/Analyst
> 940-898-7863 or ext. 1863
>
>
>
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