PI25181: FTP JOB ENDS WITH CODE S0C4 SEQ_READ_FILE_MULTI +0X00000560

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• CEEDUMP threads shows the FTP invoked a seq_read_file_multi
  that ends with an exception in rp125 +00000216 CEEEV003.
  While filling the write buffer TCPIP ended up with a negative
  length causing an overlay of the following storage beyond the
  write buffer.
  Dump Title: Code S0C4 seq_read_file_multi
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * All users of the IBM Communications                          *
  * Server for z/OS Version 2 Release 1: FTP.                    *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * When a file in the z/OS Unix file system is transferred in   *
  * block                                                        *
  * mode and ebcdic type, the number of bytes left in the buffer *
  *                                                              *
  * is incorrectly calculated. This can cause FTP to overlay     *
  * storage                                                      *
  * and take an OC4 abend.                                       *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * Apply PTF                                                    *
  ****************************************************************
  FTP incorrectly calculates maximum record size when it reads
  a file in the z/OS Unix file system. If the last record read
  from
  the file is one more than the number of bytes left in the
  buffer,
  FTP can overlay the buffer.
  

Problem conclusion

• EZAFTPMF has been updated to get the maximum record size
  accurately when the file is in z/OS Unix file system.
  

Temporary fix

Comments

APAR Information

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

  PI24894

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

  UI21552 UI21554

Modules/Macros

• EZAFTPMF
  

Fix information

• Fixed component name

  TCP/IP V3 MVS

• Fixed component ID

  5655HAL00

Applicable component levels

• R210 PSY UI21554

     UP14/12/10 P F412 ¢

Fix is available

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