CEEGTJS—Retrieves the value of an exported JCL symbol

CEEGTJS retrieves and returns to the caller the symbol value and length of the requested exported JCL symbol.


Syntax

>>-CEEGTJS--(--function_code--,--symbol_name--,--symbol_value--->

>--,--value_length--,--fc--)-----------------------------------><

function_code (input)

A fullword integer that contains the function code of the following value:

1: Retrieves the value and its associated length of an exported JCL symbol.

symbol_name (input)

A halfword length-prefixed character string (VSTRING), representing the name of an exported JCL symbol to be retrieved.

symbol_value (output)

A 255-byte fixed-length string. On return from this service, the ssymbol_value contains the value of the exported JCL symbol. If the length of the exported JCL symbol is shorter than 255 characters, the returned string is padded with blanks.

value_length (output)

A fullword integer that contains the length of the value of the specified JCL symbol.

fc (output)

A 12-byte feedback code, optional in some languages, that indicates the result of this service. If you omit this parameter, refer to Invoking callable services for the appropriate syntax to indicate that the feedback code was omitted.

The following symbolic conditions can result from this service:

Code	Severity	Message number	Message text
CEE000	0	—	The service completed successfully.
CEE3L9	0	3753	The input symbol cannot be found in the current job step.
CEE3LA	3	3754	Incorrect parameters detected.
CEE3QS	1	3932	The system service service failed with return code return_code and reason code reason_code.

Usage notes

Lowercase characters in the symbol_name are converted to uppercase by CEEGTJS.
For more information about JCL symbols, refer to the topic on system symbols and JCL symbols in z/OS MVS JCL Reference.

Examples

This example uses CEEGTJS to retrieve the value of an exported JCL symbol.

/*Module/File Name: EDCGTJS    */
/*********************************************************************/
/*                                                                   */
/* THIS EXAMPLE CALLS CEEGTJS TO RETRIEVE THE VALUE OF AN EXPORTED   */
/* JCL SYMBOL.                                                       */
/*                                                                   */
/*********************************************************************/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <leawi.h>
#include <ceeedcct.h>

int main(void) {
   _FEEDBACK fc;
   _INT4 funcode;
   _CHAR255 symvalue;
   _VSTRING symname;
   _INT4 valuelen;
   char *symbol="SYM1";
   
   /* Setting the function code */ 
   funcode=1;

 /* Preparing the JCL symbol */
   symname.length=strlen(symbol);
   memcpy(symname.string, symbol,strlen(symbol));

/* Retrieving the value of the JCL symbol */ 
   CEEGTJS(&funcode,&symname,symvalue,&valuelen,&fc);    
   if( _FBCHECK (fc, CEE000) !=0) {       
    printf("CEEGTJS failed with message number %d\n",              
         fc.tok_msgno);       
    exit(1);
  }
   symvalue[valuelen]='\0';
   printf("The value of JCL symbol %s is %s. The length
          of the value is %d\n",symbol,symvalue,valuelen);
}

Use the following JCL to run EDCGTJS:

//JOB1     JOB    FELE,MSGLEVEL=(2,0)                               
//STEP1    EXEC   PGM=EDCGTJS                                             
//E1       EXPORT SYMLIST=(SYM1,SYM2,SYM3)                             
//S1       SET    SYM1=XXXX                                            
//S2       SET    SYM2=YYYY
//STEPLIB  DD     DSN=USER.LOADLIB,DISP=SHR              
//SYSPRINT DD     SYSOUT=*                                             
//SYSOUT   DD     SYSOUT=*

Running this example would produce the following output:

The value of JCL symbol SYM1 is XXXX. The length of the value is 4.