VTLAPSY parameter
Summary
- Default value
- Parameter type
- System
- Where set
- User 0 CCAIN parameters
- Related products
- All
- Introduced
- Sirius Mods 7.9
Description
VTLAPSY is a ten-character resettable User 0 parameter that if set to a non-blank value indicates an APSY subsystem that can be used to provide full-screen login support for IODEV=7 terminals.
When an IODEV=7 terminal connects to Model 204, one of four connection states is possible:
- Terminal connection is the result of a VTAM transfer of control from a different Model 204 online. A zap for Mods 7.7 allows VTAM transfer of control even when RACF is used.
- Terminal connection request passed user data, and the X'0040' bit of TERMOPT is not set. In this case the user data will be processed as a command at connect time.
- Terminal connection contains user data, and TERMOPT=X'0040' bit is on. In this case the user data will be prefixed with the string "LOGON " and the result will be processed as a command.
- Terminal connection contains no user data (the typical case).
When an IODEV=7 terminal connects with no user data and VTLAPSY is set to a non-blank value, the following processing is performed:
- The user is "logged in" with a User ID and account matching the VTLAPSY string and privileges of X'00'.
- The $Sir_Login function is enabled.
- The VTLAPSY string is entered as a command.
- The VTLAPSY subsystem is expected to format a full screen and use $Sir_Login to log the user in.
- If command level is reached without a successful $Sir_Login call, or if the VTLAPSY subsystem attempts an APSY transfer without a successful $Sir_Login call, a MSIR.0722 non-terminal message is issued and the terminal is disconnected.
- If command level is reached after a successful $Sir_Login, then any AUTOSYS subsystem for the thread will be processed.
- Any environmental error in $Sir_Login will result in request cancellation. Note that a VTLAPSY must be configured to not log a user in or out.