> And I agree with Alan Cox that things like > get-me-a-world-unique-64-bit-number() should be obtained by something > other than the gethostid(). Make such a call part of the POSIX standard > or something. It's not a networking thing. gethostid(), for better or > worse, is.
For pseudo-random 128bits is apparently what you need due to the birthday paradox. There is an RFC for this and related standard (look for UUID) Alan
