multi/single-user mode flag?

[H. L. Rogers]

In article <340 at conexch.UUCP> root at conexch.UUCP (Larry Dighera) writes:
>
>The normal way for a Sys V user to determine which run level state the system 
>is in, is to do a 'who -r'.

True, but since there is no 'standard' which specifies the system state for
a particular run level number, a user program (application?) risks
portability problems from vendor to vendor.  Does anyone know of any
standards work to abstract the numerical run level for Un*x systems?
-- 

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HL Rogers    (hl.rogers at ncrcae.Columbia.NCR.COM)