PK06552: FTP "451 TRANSFER ABORTED DUE TO FILE ERROR." RECEIVED WHEN DATATRUNCATION REQUESTED AND USING LE SERVICES TO WRITE OUTPUT FILE.

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• When a file is FTPed to tape or DASD using fwrite() and data
  truncation occurs, Language Environment flags that an error has
  occurred. If the user has specified that data truncation is
  allowed using the TRUNCATE keyword, the transfer may result in a
  "451 Tranfer aborted due to file error"
  reply being sent to the client and the file transfer being
  incomplete.
  

Local fix

• when receiving a file using the z/OS FTP client and writing
  to tape:
  
  locsite wrtapefastio
  
  When sending a file to the z/OS server to be writte to tape:
  quote site wrtapefastio
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of the IBM Communications Server   *
  *                 for z/OS Version 1 Release 5, 6 and 7 IP:    *
  *                 FTP Server                                   *
  ****************************************************************
  * PROBLEM DESCRIPTION: Doing a PUT of a dataset to the FTP     *
  *                      server that causes truncation when      *
  *                      fwrite() is used, can result in an      *
  *                      incomplete file being transferred.      *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  The FTP server, in seq_write_file() was detecting that
  truncation had occurred, but not resetting the error on the
  stream.  This resulted in fwrite() not writing any further data
  to the stream (data set) and an incomplete file being
  transferred.
  +-------------------------------------------------------------+
  + 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

• The FTP server, seq_write_file() has been corrected to clear
  the error on the stream when truncation is allowed.
  
  * Cross Reference between External and Internal Names
  

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:

  UK04611 UK04613 UK04612

Modules/Macros

• EZAFTPMF
  

Fix information

• Fixed component name

  TCP/IP V3 MVS

• Fixed component ID

  5655HAL00

Applicable component levels

• R150 PSY UK04611

     UP05/07/22 P F507

• R160 PSY UK04612

     UP05/07/22 P F507

• R170 PSY UK04613

     UP05/07/22 P F507

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.