Re: mi access to a dtaara

["Mark S. Waterbury" <mark_s_waterbury@xxxxxxxxx>]

Hi, Steve:

 

What *DTAARA are you trying to access?

 

If I create a *DTAARA in a user library, with CRTDTAARA, it is created

in "user domain", so this should not present any problems at Level=40.

 

Perhaps you are trying to access a *DTAARA that was created by IBM

in "system domain" (for some unknown reason)...?

 

There are two documented APIs that you can use to retrieve and change

a *DTAARA, QXXRTVDA and QXXCHGDA. Both of these APIs can be

called by a user in user state and user domain, but, as with most IBM

provided APIs, they are set to "system state, user domain", and so

they can access any object in either domain (I believe).  (These two

APIs are documented in the ILE C Programmers Guide, I believe.)

 

I hope that helps...

 

Regards,

 

Mark S. Waterbury

----- Original Message -----

From: Steve Richter

To: mi mail list

Sent: Tuesday, May 29, 2001 10:40 AM

Subject: mi access to a dtaara

People of the mi,

 

I can set a sysptr to a dtaara object ( object type x'190A' ).  But I get MCH6801 when I SETSPPFP on this sysptr.  ( security level 40, v4r4 )

    DCL SYSPTR pSysDataArea AUTO ;

    DCL SPCPTR pSpcDataArea AUTO ;

    SETSPPFP pSpcDataArea, pSysDataArea ;

    /* boom.  mch6801 */

 

But, the pco has a sysptr to the *lda in pos(561) and when I SETSPPFP to the *Lda sysptr, a useable spcptr is returned.

    DCL SYSPTR pSysLda BASPCO POS(561) ;

    DCL SPCPTR pSpcLda AUTO ;

    DCL DD cLda CHAR(512) ADDR(*BAS pSpcLda) POS(97) ;

    DCL DD cCopyOfLda CHAR(512) AUTO ;

    SETSPPFP  pSpcLda, pSysLda ;

    /* no boom */

    CPYBLA  cCopyOfLda, cLda ;

 

The subject as400 is running at security level 40, release v4r4.

 

Any comments on why the *lda is accessible with a spcptr?

 

Do you think this access will be permitted in future releases?

 

thanks,

Steve Richter