OA43240: ABEND0C4 IN DSICCSUB +'7CA'.

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Immediately after user logged on ABEND0C4 in DSICCSUB was
  issued.  Overlay occurred.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of Tivoli NetView for z/OS.        *
  ****************************************************************
  * PROBLEM DESCRIPTION: ABEND0C4 and/or other unpredictable     *
  *                      ABENDs can occur after logon if an      *
  *                      error occurs with 3270 emulator         *
  *                      software that causes much more data to  *
  *                      be returned to NetView than just the    *
  *                      logon information (operator ID,         *
  *                      password, etc).                         *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  When the 3270 data stream that is returned from the terminal
  upon NetView logon erroneously returns too much data (more than
  276 bytes for V5R3 and before or more than 532 bytes for V5R4
  and above), module DSIPRMPT, when interpreting the data, writes
  past the end of the buffer containing the 3270 data stream. What
  contains the 3270 data stream is the immediate command buffer,
  and what immediately follows it in storage is the normal command
  buffer. The normal command buffer is initialized with a regular
  buffer header, but after the overlay, x'40's can be found in
  those fields. Because the HDRBLENG field is overlaid, when a
  CLIST language command is executed, module DSICCSUB writes too
  many zeroes into the buffer, causing subsequent storage to be
  overlaid, causing unpredictable results.
  

Problem conclusion

• Module DSIPRMPT is being changed to ask for 7 fewer bytes to be
  returned to the immediate command buffer than the amount of
  space available in that buffer, since it writes at most 7 bytes
  beyond the data that it received. This should leave enough space
  for the data, because in V5R3 and before, at most only 45 bytes
  of text (plus 3270 control characters) should be returned, and
  in V5R4 and above, at most only 129 bytes of text should be
  returned.
  

Temporary fix

Comments

APAR Information

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

  OA42736

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

  UA71053

Modules/Macros

• DSIPRMPT
  

Fix information

• Fixed component name

  NETVIEW FOR Z/O

• Fixed component ID

  5697NV600

Applicable component levels

• R10B PSY UA71053

     UP13/10/23 P F310

Fix is available

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