"who am i" from a ptty

[Dave Bloom]

In article <191 at pluto.UUCP>, warren at pluto.UUCP (Warren Burstein) writes:
> I just discovered that "who am i" prints nothing if stdin is a ptty.
> It gets the name from ttyname, then searches /etc/utmp for a line
> matching the ptty.  Since no one is logged in on a ptty it fails.
> 
> This was observed under Pyramid OS-X which pretends to be both BSD and
> SysV.

This is a problem with OSx 2.3.... Pyramid maintained such a separation
between 4.2 and SysV that the SysV end knows nothing about people logged in
under Ethernet, a problem since corrected under OSx 2.5.
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