PQ07423: FTP SERVER DOES NOT HANDLE VBS AND VS DATA SETS CORRECTLY

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• The R320 FTP server does not read VS and VBS files correctly
  when the lrecl is larger than 32760 (lrecl=x).  The server also
  writes VS and VBS files incorrectly depending on how the data
  bytes are read from TCP/IP.
  The read side (get requests) does not build the block headers
  correctly which can cause unpredicatable results when the client
  tries to write the data out.
  The write side does not handle the block headers correctly which
  can result in records being built incorrectly.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of TCP/IP Version 3 Release 2;     *
  *                 CFTP server                                  *
  ****************************************************************
  * PROBLEM DESCRIPTION: When attempting to move VBS datasets,   *
  *                      extreme CPU utilization can be          *
  *                      observed.  A CFTP server trace may      *
  *                      show indicate a loop.                   *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  When attempting to move VBS datasets, extreme CPU utilization
  can be observed.  A CFTP server trace may show indicate a loop.
  

Problem conclusion

• The code has been changed to detect when internal data areas
  being received from the network are changing in size.
  The detection of the change in the size of the data area
  prevents the loop.
  
  Additional Keywords: CFTP32 LOOP VBS LRECL=X PN90438
  
  * 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:

  UQ08995

Modules/Macros

• EZAFTSRR EZAFTSRS
  

Fix information

• Fixed component name

  TCP/IP V3 MVS

• Fixed component ID

  5655HAL00

Applicable component levels

• R320 PSY UQ08995

     UP97/09/17 P F709 «

Fix is available

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