PH08084: UNSTRING STATEMENT READS PAST THE END OF SENDING FIELD CAUSING FALSE MATCHES WITH DELIMITER VALUE

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• UNSTRING statement reads past the end of sending field causing
  false matches with DELIMITER value.  UNSTRING may put one extra
  byte into the DELIMITER field.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: Users of Enterprise COBOL V5 and later       *
  *                 releases who are using UNSTRING statement.   *
  *                                                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: The COBOL runtime UNSTRING routine      *
  *                      does one extra delimiter check beyond   *
  *                      the end of the sending field, causing   *
  *                      incorrect UNSTRING result.              *
  *                                                              *
  ****************************************************************
  * RECOMMENDATION: Apply the provided PTF.                      *
  *                                                              *
  ****************************************************************
  During UNSTRING processing, the COBOL runtime fails to check for
  the remaining length of the sending field, and uses dirty byte
  values following the end of the field to do one extra delimiter
  comparison before stopping. This could lead to erroneous
  UNSTRING result.
  
  FIXCAT keyword: COB0501T/K  COB0502T/K  COB0601T/K  COB0602T/K
  

Problem conclusion

• The COBOL Runtime is corrected to stop properly at the end of
  the sending field when the remaining field length is too short
  to do delimiter comparison.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

  PH09481 UI61878

Modules/Macros

• IGZCEV4  IGZLLIBV IGZXAPI  IGZXCDA  IGZXDMR
  IGZXD24  IGZXLPIO IGZXLPKA IGZXLPKB IGZXLPKC IGZXLPKD IGZXLPKE
  IGZXLPKF IGZXLPKG IGZXPK2
  

Fix information

• Fixed component name

  LE ENT COBOL LI

• Fixed component ID

  568819812

Applicable component levels

• R7A0 PSY UI61878

     UP19/03/29 P F903

Fix is available

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