How to distinguish between STREAMS and non-STREAMSD

[Steve Alexander]

In article <2585 at root44.co.uk> khh at root.co.uk (Keith Holder) writes:
>In System V Release 4, there is a library function called isastream(3C), which 
>I don't know whether this function was available in previous releases.

Isastream does an I_CANPUT ioctl on the descriptor.  This ioctl did not
exist under pre-SVR4 releases of System V, and I don't believe that
isastream did either...

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Steve Alexander, Software Technologies Group    | stevea at i88.isc.com
INTERACTIVE Systems Corporation, Naperville, IL | ...!{sun,ico}!laidbak!stevea