PN78188: TELNET SERVER DOESN'T CORRECTLY HANDLE THE READ PARTITION QUERY LIST (X'FF 03').

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Customer is tring to telnet HOST/MVS from a SUN w/s :
  TELNET command is issued, user is asked for the terminal type,
  he enters VT100 value, but at this point the session is never
  established, he never obtains the main application menu related
  to the appl defined in the DEFAULTAPPL statement.
  The problem is that the READ PARTITION Query List (x'FF 03')
  is not correctly handle and TELNET server rejects it with the
  36002 sense which means 'The length is too long or too short
  in the READ PARTITION field. The error occurred in the WRITE
  STRUCTURED FIELD command'.
  READ PARTITION Query (x'FF 02') is correctly handled.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All telnet user's with applications that     *
  *                 send READ PARTITION Query List (x'FF 03')    *
  ****************************************************************
  * PROBLEM DESCRIPTION: Customer is tring to telnet HOST/MVS    *
  *                      from a SUN w/s.  TELNET command is      *
  *                      issued, user is asked for the terminal  *
  *                      type, he enters VT100 value.            *
  *                      At this point the session is never      *
  *                      established, he never obtains           *
  *                      the main application menu related       *
  *                      to the appl defined in the              *
  *                      DEFAULTAPPL statement.                  *
  *                                                              *
  *                      The problem is that the DEFAULTAPPL is  *
  *                      sending a READ PARTITION Query List     *
  *                      (x'FF 03') and the TELNET server        *
  *                      rejects it with the 36002 sense, which  *
  *                      means length error.                     *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  TND3270 (WSForder) was checking the length of the
  READ PARTITION and was assuming the length to be = 5.
  This is true for a READ PARTITION QUERY, but not for a
  READ PARTITION QUERY LIST.
  

Problem conclusion

• TND3270 (WSForder) will now only check for the length = 5 if
  this is a READ PARTITION QUERY.  If it's a READ PARTITION QUERY
  LIST, the length is not checked.
  

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:

  UN86440

Modules/Macros

• EZAJT327
  

Fix information

• Fixed component name

  TCP/IP V3 MVS

• Fixed component ID

  5655HAL00

Applicable component levels

• R310 PSY UN86440

     UP96/02/06 P F602

Fix is available

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