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  1.  Home
  2. RPG400-L
  3. April 2022

Re: Generating UUID in RPG

I see, so it seems there is no way to generate a type 4 on my current
operating system as this was introduced in 7.3

If I called the type 1 uuid 4 times and then concatenated the first 8
random chars together perhaps that would give me a working 'random' uuid



On Tue, 19 Apr 2022 at 15:15, Charles Wilt <charles.wilt@xxxxxxxxx> wrote:

Working as designed...

The UUID returned is a type 1, not a type 4.

Charles

On Tue, Apr 19, 2022 at 8:08 AM issemDan <residentialsleeper@xxxxxxxxx>
wrote:

Thanks, I'm getting a UUID now but after testing several times in a row
(calling via command line from fresh each time) I've noticed only the
first
8 characters are random whilst the rest are the same for each call and
not
randomized

On Tue, 19 Apr 2022 at 15:00, Magne Kofoed <magne.kofoed@xxxxxxxxx>
wrote:

Hi,

try using your original code and add this:

dcl-pr cvthc ExtProc('cvthc');
result char(65534) options(*varsize);
source char(32767) options(*varsize);
resultSize int(10) value;
end-pr;

dcl-c upper 'ABCDEF';
dcl-c lower 'abcdef';
dcl-s str char(32);

cvthc(str:uuid:%size(str));
pUuid = %xlate(upper:lower:%subst(str:1:8) + '-'
+ %subst(str:9:4) + '-'
+ %subst(str:13:4) + '-'
+ %subst(str:17:4) + '-'
+ %subst(str:21:12));

tir. 19. apr. 2022 kl. 15:35 skrev issemDan <
residentialsleeper@xxxxxxxxx
:

Thanks for the reply but when I run this I am getting a “template
value
not
valid for instruction” error message. Reason code is X’0000’

On Tue, 19 Apr 2022 at 14:20, Magne Kofoed <magne.kofoed@xxxxxxxxx>
wrote:

**free
ctl-opt Option(*NoSrcStmt) DftActGrp(*No);

dcl-pr crtuuidr extpgm('CRTUUIDR');
pUuid char(36);
end-pr;

dcl-pr GenUuid ExtProc('_GENUUID');
UUID_template pointer Value;
end-pr;

dcl-pr cvthc ExtProc('cvthc');
result char(65534) options(*varsize);
source char(32767) options(*varsize);
resultSize int(10) value;
end-pr;

dcl-pi crtuuidr;
pUuid char(36);
end-pi;

dcl-ds UUID_template;
UtBytPrv uns(10) Inz( %Size(UUID_template));
UtBytAvl uns(10);
Version char(1) Inz(x'04');
*N char(7) Inz( *Allx'00' );
UUID char(16);
Reply char(1);
end-ds;


dcl-c upper 'ABCDEF';
dcl-c lower 'abcdef';
dcl-s str char(32);

GenUuid( %Addr( UUID_template ));
cvthc(str:uuid:%size(str));
pUuid = %xlate(upper:lower:%subst(str:1:8) + '-'
+ %subst(str:9:4) + '-'
+ %subst(str:13:4) + '-'
+ %subst(str:17:4) + '-'
+ %subst(str:21:12));
*inlr = *on;

tir. 19. apr. 2022 kl. 15:03 skrev issemDan <
residentialsleeper@xxxxxxxxx
:

I have read some past posts regarding this however, I can't seem
to
get
this to work. I have been using the _GENUUID function and the
returned
UUID
field displays garbage characters.
I'm on version 7.2. Am I doing something wrong or is there a
better
way
to
generate a UUID? I need in following example format:
123e4567-e89b-12d3-a456-426614174000

See below code:
D UUID_template Ds
D UtBytPrv 10u 0 Inz( %Size(
UUID_template
))
D UtBytAvl 10u 0
D 8a Inz( *Allx'00' )
D UUID 16a

D GenUuid PR ExtProc('_GENUUID')
D UUID_template * Value

GenUuid( %Addr( UUID_template ));
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