> From the userlevel, can I get an estimate of "amount of entropy"
> in /dev/random, that is, the estimate of number of bytes
> readable until it blocks ? Of course multiple processes
> can read bytes and this would not be exact ... but still .. as an upper
> boundary estimate ?
>
> Thanks
> Yakov
Yes. Look in drivers/char/random.c at the random_ioctl handler. You will see
RNDGETENTCNT.
DS
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