PI24894: 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 1 Release            *
  *                 13: FTP.                                     *
  ****************************************************************
  * PROBLEM DESCRIPTION: When a HFS file is transferred          *
  *                      in block mode and ebcdic type,          *
  *                      the buffer ends up with a               *
  *                      negative length causing an              *
  *                      overlay of CSM beyond the buffer        *
  *                      causing an 0C4 abend.                   *
  ****************************************************************
  * RECOMMENDATION: Apply PTF.                                   *
  ****************************************************************
  FTP incorrectly calculates maximum record size when it
  reading 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.
  +-------------------------------------------------------------+
  + Please check our Communications Server for OS/390 homepages +
  + for common networking tips and fixes.  The URL for these    +
  + homepages can be found in Informational APAR II11334.       +
  +-------------------------------------------------------------+
  

Problem conclusion

• EZAFTPMF has been updated to get the maximum record size
  accurately when the file is in z/OS Unix file system.
  
  * Cross Reference between External and Internal Names
  

Temporary fix

• *********
  * HIPER *
  *********
  

Comments

APAR Information

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

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

  PI25167 PI25181 UI21515

Modules/Macros

•    EZAFTPMF
  

Fix information

• Fixed component name

  TCP/IP V3 MVS

• Fixed component ID

  5655HAL00

Applicable component levels

• R1D0 PSY UI21515

     UP14/12/10 P F412 Ž

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.