PM32323: CICS WEB SEND ABENDS AEXZ CCNV TARGET_BUFFER_EXHAUSTED WHEN CONVERTING CODEPAGE 037 TO UTF-8 CODEPAGE 1208

Obtain the fix for this APAR.

APAR status

• Closed as unreproducible.

Error description

• CICS application issues WEB SEND command for SOAP message with
  length 11040 ('x2B20'). DFHCCNV is called to Convert_Data
  Source_CCSID(25) Target_CCSID(4B8). The buffers are the same
  length 2B20. However, the SOAP body contains a cent sign (x'4A')
  which gets converted to 2 bytes in UTF-8. This causes the target
  buffer to run out of space. The WEB SEND should issue a DFHCCNV
  INQUIRE_CONVERSION_SIZE call to determine the size of buffer
  required to hold the converted data. However, this call has been
  invalidly bypassed.
  

Local fix

• Use different host codepage on WEB SEND.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICS users                               *
  ****************************************************************
  * PROBLEM DESCRIPTION: ABEND AEXZ when issuing a WEB SEND      *
  *                      FROM command specifying 037 for the     *
  *                      HOSTCODEPAGE and UTF-8 for the          *
  *                      CHARACTERSET.                           *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  CICS application issues WEB SEND FROM to return a response to
  the client. The server codepage is 037 and the client codepage
  is 1028 (UTF-8). The data contains a cent character x'4A' which
  in UTF-8 is a 2 byte character. DFHWBAP contains a call to
  DFHCCNV function INQUIRE_CONVERSION_SIZE which should be used
  to determine the converted data length. However, the logic
  there is incorrect and the call is bypassed if either the
  server codepage is 037 or the client codepage is 819. Thus the
  call is bypassed and the buffer size for converted data is the
  same as the original. Later, the call to DFHCCNV for function
  CONVERT_DATA fails with EXCEPTION TARGET_BUFFER_EXHAUSTED which
  leads to the ABENDAEXZ.
  

Problem conclusion

Temporary fix

• FIX AVAILABLE BY PTF ONLY
  

Comments

• DFHWBAP has been changed so that the DFHCCNV
  INQUIRE_CONVERSION_SIZE call is only bypassed if the server
  codepage is 037 and the client codepage is 819.
  

APAR Information

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

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

  UK65227

Modules/Macros

•    DESWBAP  DESWBDM  DESWBRQ  DESWBRQF DESWBSR
  DESWBXM  DFHWBAP  DFHWBAPF DFHWBDM  DFHWBRQS DFHWBSR  DFHWBXM
  

Fix information

• Fixed component name

  CICSTS V3 Z/OS

• Fixed component ID

  5655M1500

Applicable component levels

• R400 PSY UK65227

     UP11/03/08 P F103

Fix is available

• Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.