APAR:       PN86584

Problem:    Customer was running a stress test which resulted in a
            SYS3175 in VT100.DLL
 
            telnetdc.c called the GetTCB routine which returned a
            null pointer.  There was no error checking upon return
            from GetTCB and processing continued.  Telnetdc attempted
            to store information based upon a null pointer resulting
            in the SYS3175.

Solution:   Telnetdc has been updated to check for a null pointer upon
            return from the GetTCB call.  If a null pointer is returned,
            the CommitSuicide routine will be called and the client's
            session will be terminated.

            The following files have been updated:
            telnetdc.c    -  a check has been added for a null pointer upon
                             return from GetTCB
 

FILES:      PN86584.rdm  - this readme file

            TELNETDC.EXE - replace in <tcpip>\BIN path
            TELNETD.EXE  - replace in <tcpip>\BIN path
            LOGINUNX.EXE - replace in <tcpip>\BIN path
            TERM-IS.EXE  - replace in <tcpip>\BIN path
            TNLOGIN.EXE  - replace in <tcpip>\BIN path

            ANSI.DLL     - replace in <tcpip>\DLL path
            DUMB.DLL     - replace in <tcpip>\DLL path
            VT100.DLL    - replace in <tcpip>\DLL path