Re: Resolve pointer on ifs file -- RPG400-L

I received many times that email
Mike !! , check your mailer config !!

Le vendredi, 28 fév 2003, à 14:23 Europe/Zurich, Mike Silvers a écrit :

Well -- I looked at the documentation -- that provides more information than I had when I worked on this process. That is good.

The solution would be to read the IFS file and write it to this _Cipher procedure. At the end of the reads, you make a call to the _Cipher method with no parameters, then the MD% is returned.

Mike
----- Original Message -----
From: "Stephane Leon" <s.leon@xxxxxxx>
To: "RPG programming on the AS400 / iSeries" <rpg400-l@xxxxxxxxxxxx>
Sent: Friday, February 28, 2003 7:56 AM
Subject: RE: Resolve pointer on ifs file
Ok. If i understood the solution is to read the ifs file , add string in _Cipher (play with offset 3 in _Cipher), and get the hash value. Am i ok?

So what you mean by :
These characters may not have a true character representation,
so we end up saving the 32 character hex value
I use it now with string and with no problems.
I get the same thing as *nix does :)
The documentation i use is : http://publib.boulder.ibm.com/iseries/v5r1/ic2924/tstudio/tech_ref/mi/ CIPHER .htm (Function Identifier 0005)
But again, the operand 1 receive ''Space pointer data object''
It cannot be a ifs pointer ?
-----Message d'origine-----
De : rpg400-l-bounces@xxxxxxxxxxxx
[mailto:rpg400-l-bounces@xxxxxxxxxxxx]De la part de Mike Silvers
Envoyé : vendredi, 28. février 2003 12:30
À : RPG programming on the AS400 / iSeries
Objet : Re: Resolve pointer on ifs file
Stephane,

The _Cipher method is a tricky one. It is an MI method and the documentation for this method is only found in the MI programming book (rather expensive and the last I saw, not available on PDF). We use the _Cipher method to return an MD5 of specific information. Two issues that you must consider. First, the MD5 returned for data will return a hex value (32 characters) representing 16 characters. These characters may not have a true character representation, so we end up saving the 32 character hex value. Second, we have found that, after quite a bit of testing, you can not put calls to the _Cipher method in a service program. When placed in a service program there are some issues with saving subsequent calls and creating the MD5 value.

Once you get the procedure down, the usage is quite easy. You can easily read the IFS file and add each data from the read to the _Cipher value. At the end of the file, you will request the MD5 value in return. The _Cipher method will save all of the data you sent to it until you request the MD5