Re: [PATCH, RFC] random: introduce getrandom(2) system call

[Dwayne Litzenberger]

On Thu, Jul 17, 2014 at 01:01:16PM -0400, Theodore Ts'o wrote:
> The getrandom(2) system call is a superset of getentropy(2).  When we
> add the support for this into glibc, it won't be terribly difficult
> nor annoying to drop the following in alongside the standard support
> needed for any new system call:
>
> int getentropy(void *buf, size_t buflen)
> {
> 	int	ret;
>
> 	ret = getentropy(buf, buflen, 0);
> 	return (ret > 0) ? 0 : ret;
> }
>
> The reason for the additional flags is that I'm trying to solve more
> problems than just getentropy()'s raison d'etre.  The discussion of
> this is in the commit description; let me know if there bits that I
> could make clearer.

This could still return predictable bytes during early boot, though, 
right?

--
Dwayne C. Litzenberger <dlitz@xxxxxxxxx>
OpenPGP: 19E1 1FE8 B3CF F273 ED17  4A24 928C EC13 39C2 5CF7
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