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On Mon, Mar 10, 2003 at 12:01:20AM -0000, Chris January wrote: > > Anyone interested in implementing a working gethostid? It should be > > trivial to have it returned a munged IP address like linux but it > > might be more interesting if it returned something more unique than > > that. > > > > I was playing around with uuidgen to see if that could be used to > > generate something unique but it creates too many bits. I thought > > it might be interesting to use it to seed a /etc/hostid file, though. > > > > Anyway, this would be a good project for anyone interested in contributing > > something. It would also remove an XFAIL from the test suite. > > I could probably come up with a patch for this. > How about using a hash of the following items: > 1. Processor serial no. (if available) > 2. MAC address of first ethernet card (if available) > 3. Windows product id > 4. Capacity of drive C: > 5. Anything else lying around. > > There would need to be an option to turn this off however as some privacy > freaks would probably complain despite the hashing. What about just returning 0? According to SUSv3: "The gethostid() function shall retrieve a 32-bit identifier for the current host." and "This volume of IEEE Std 1003.1-2001 does not define the domain in which the return value is unique." so the domain could be validly restricted to the current host! Corinna -- Corinna Vinschen Please, send mails regarding Cygwin to Cygwin Developer mailto:cygwin AT cygwin DOT com Red Hat, Inc.
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