Re: IP Address Conversion using an IBM API

Bruce,

"YES!!!!!".  That did it - exactly what we needed.  Many thanks.

And thanks to all for your time and support!

Jay

----- Original Message -----
From: "Bruce Vining" <bvining@us.ibm.com>
To: <cobol400-l@midrange.com>
Sent: Friday, May 24, 2002 12:24 PM
Subject: Re: IP Address Conversion using an IBM API


>
> Jay,
>
> To the best of my knowledge (and I'm not in COBOL development or that much
> of a COBOL coder so my knowledge is certainly not the final word here)
> COBOL treats all binary data as signed.  One rather indirect way to
display
> the correct numeric value (and I'm sure there are better ones but this
came
> quickly to mind) would be to:
>
> 01.   ApiReturnLong   PIC S9(18) binary.
> 01.   ApiReturnMap redefines ApiReturnLong.
>         05.  ApiFiller  PIC S9(9) binary.
>         05.  ApiReturn PIC S9(9) binary.
>
> Displaying ApiReturnLong (as in eval using debug) would then show
> 0000000003326352740.
>
> Of course you would only need to do this if you really need to display the
> numeric value.  To use the value in other APIs you would just use
ApiReturn
> as it does have the correct value (when interpreted by other APIs as
> unsigned).
>
> Bruce
>
>
>
>
>
>                       "Jay Sulzmann"
>                       <jsulzmann@HBS-INC        To:
<cobol400-l@midrange.com>
>                       .COM>                     cc:
>                       Sent by:                  Subject:  Re: IP Address
Conversion using an IBM API
>                       cobol400-l-admin@m
>                       idrange.com
>
>
>                       05/24/2002 10:39
>                       AM
>                       Please respond to
>                       cobol400-l
>
>
>
>
>
>
> Bruce,
>
> Wow - thanks.  It probably is a typo on my part.
>
> Now that we know the COBOL is getting the correct result in a different
> form, can you suggest an algorithm for putting it in the correct form?
>
> Much appreciate -- Jay
>
> ----- Original Message -----
> From: "Bruce Vining" <bvining@us.ibm.com>
> To: <cobol400-l@midrange.com>
> Sent: Friday, May 24, 2002 11:24 AM
> Subject: Re: IP Address Conversion using an IBM API
>
>
> >
> > Jay,
> >
> > I am not able to reproduce your exact values.  You mention that in RPG
> you
> > get 3326352740 which would map to 198.68.29.100.  When I try your COBOL
> > program using 198.68.29.100 I get -968614556 (which is close to your
> > reported -989614556, but not quite the same).
> >
> > Now -968614556 is x'C6441D64', which when used as an unsigned integer is
> > 3326352740 so you are getting the same returned data.  It's just being
> > treated as signed in COBOL and unsigned in RPG.  So assuming one of the
> > values in your note was a typo, you are getting the same results.
> >
> > Bruce
>
>
>
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