Re: /dev/random probs in 2.4test(12-pre3)

From: Matthew Kirkwood (matthew@hairy.beasts.org)
Date: Sat Dec 02 2000 - 07:01:41 EST

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    On 1 Dec 2000, H. Peter Anvin wrote:

    > > open("/dev/random", O_RDONLY) = 3
    > > read(3, "q\321Nu\204\251^\234i\254\350\370\363\"\305\366R\2708V"..., 72) = 29
    > > close(3) = 0
    > >
    > > Have the semantics of the device changed, or is vpnd doing
    > > something wrong?
    >
    > vpnd is doing something wrong: it's assuming short reads won't happen.
    > /dev/random will block if there is NOTHING to be read; however, if
    > there are bytes to be read, it will return them even if it is less
    > than the user asked for.

    Ah, many thanks for the clarification. I'll fix vpnd then.

    Matthew.

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