PH61324: THE ASCII STRFTIME() WITH CONVERSION SPECIFIER %Z MAY GENERATE AN INCORRECT OFFSET WHEN DAYLIGHT SAVING TIME IS IN EFFECT.

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• When the strftime() function is called in an ASCII
  environment (mode = ASCII) with the conversion specifier %z and
  Daylight Savings Time, DST, in effect the resulting generated
  offset is incorrect.
  
  
  
  ANALYSIS:     The ASCII strftime() function when used with the
  %z
  conversion does not produce the correct offset if daylight
  savings time is in effect.
  
  KNOWN IMPACT:
      Functions calling strftime() in an ASCII environment with
  DST
  specified for the time zone may produce incorrect output.
  
  VERIFICATION STEPS:
  1.  The application must be calling the ASCII strftime()
  function,
     i.e. the mode=ascii flag is on.
  2.  The call must include the %z conversion specifier.
  3.  The timezone must specify daylight savings time.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: z/OS C/C++ users who invoke ASCII version    *
  *                 of strftime() or wcsftime() with conversion  *
  *                 specifier %z when daylight saving time is    *
  *                 in effect.                                   *
  ****************************************************************
  * PROBLEM DESCRIPTION: The ASCII version of strftime() and     *
  *                      wcsftime() with %z may generate         *
  *                      an incorrect offset from UTC when       *
  *                      daylight saving time is in effect.      *
  ****************************************************************
  See the problem description.
  

Problem conclusion

• The code has been changed to fix the problem.
  

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:

  UI97389 UI97390 UI97391

Modules/Macros

• CELJSFTM CELZSFTM
  

Fix information

• Fixed component name

  LE C LIB FOR Z/

• Fixed component ID

  568819805

Applicable component levels

• R7C0 PSY UI97391

     UP24/07/03 P F407

• R7D0 PSY UI97390

     UP24/07/03 P F407

• R7E0 PSY UI97389

     UP24/07/03 P F407

Fix is available

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