RE: Qcmdexc

If you want to forget the length parameter, you could encapsulate QCMDEXEC in a 
service program. In the procedure, you can use the CEEDOD API to compute the 
length of the command to run. Here is the source of such a service program:

h nomain                                                               
                                                                       
d cmdExec         pr                  opdesc                           
d                             3000a   options(*varsize) const          
                                                                       
 *==================================================================== 
                                                                       
p cmdexec         b                   export                           
d                 pi                  opdesc                           
d @cmd                        3000a   options(*varsize) const          
                                                                       
 *-----------------------------------------------------------------*   
 * Prototype for CEEDOD (Retrieve operational descriptor)              
 *-----------------------------------------------------------------*   
d CEEDOD          pr                                                   
d ParmNum                       10i 0 const                            
d                               10i 0                                  
d                               10i 0                                  
d                               10i 0                                  
d                               10i 0                                  
d                               10i 0                                  
d                               12a   options(*omit)                   
d                                                                      
 * Parameters passed to CEEDOD                                         
d DescType        s             10I 0                                  
d DataType        s             10I 0                                  
d DescInfo1       s             10I 0                                  
d DescInfo2       s             10I 0                                  
d InLen           s             10I 0                                  
                                                                       
d @lon            s             15p 5                                  
d @cmdExc         s           3000a                                    
                                                                       
 *-----------------------------------------------------------------*   
 * Use the operational descriptors to determine the lengths of     *   
 * the parameters that were passed.                                *   
 *-----------------------------------------------------------------*   
c                   callp     CEEDOD(1         : DescType : DataType : 
c                                    DescInfo1 : DescInfo2: Inlen    : 
c                                    *OMIT)          
                                                     
c                   call      'QCMDEXC'              
c                   parm      @cmd          @cmdExc  
c                   parm      InLen         @lon     
                                                     
c                   return                           
                                                     
p cmdexec         e                                  

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>>> Satheeshkumar_selvaraj@xxxxxxxxxx 2005-10-03 11:18:09 >>>
The Prototype for QCMDEXC is defied as
first parameter with Variable length character (Command) and
second parameter as 15P5 numeric (Length of the Command).
So your call should match with the prototype of the API.
This rule applies for any API or program you call.

Satheesh
 
-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx 
[mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of murali dhar
Sent: Monday, October 03, 2005 8:22 PM
To: RPG programming on the AS400 / iSeries
Subject: Qcmdexc

D CMD     S   9A INZ('WRKOBJPDM')
D CMD1    S  7A INZ('DSPLIBL')
D LENGTH  S  15 5 INZ(9)
D LENGTH1 S  15 5 INZ(7)
C       CALL   'QCMDEXC'
C       PARM              CMD1
C       PARM              LENGTH1
C       CALL   'QCMDEXC'   
C       PARM             CMD
C       PARM               LENGTH
C       SETON                     LR
 
When I tried to change decimal positions from 5  to other number ( tried
diff combinations,like 16 6 etc..)for the fields LENGTH&LENGTH1, the
program is not working  and throwing exception which says command length
not valid..
Can some one let me know whats wrong?  
 

                
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