Nullpath in system calls considered harmful?

[Larry McVoy]

Hi-
	A question for oldtimers: is there any good reason that null paths
    (ie, open("", flags)) should NOT be considered an error.  If you don't
    already know that many kernels translate "" into "." you probably
    can't answer this question.  POSIX wants "" to be an error.

Thanks,

Larry McVoy, Lachman Associates.			  My opinions are that.