[PATCH 5/5] Add arc4random() etc. from OpenBSD 5.8
Sebastian Huber
sebastian.huber@embedded-brains.de
Fri Mar 18 18:49:00 GMT 2016
----- Am 18. Mrz 2016 um 17:25 schrieb Corinna Vinschen vinschen@redhat.com:
> On Mar 18 15:48, Sebastian Huber wrote:
>>
>>
>> On 18/03/16 14:50, Corinna Vinschen wrote:
>> >On Mar 18 12:28, Corinna Vinschen wrote:
>> >>>On Mar 18 11:49, Sebastian Huber wrote:
[...]
>> I am not sure if we should add the arc4random_stir() and
>> arc4random_addrandom() functions, since this may lead configure scripts to
>> enable their use. With the getentropy() system call I am not sure if this is
>> harmful.
>
> They are required for backward compatiblity. I also don't understand
> why they should be harmful. Are they harmful on OpenBSD?
They no longer exist on OpenBSD and were removed 2013 via this message:
"Remove arc4random_stir() and arc4random_addrandom(), which none should
be using directly. Well, a few rare people cloned it upstream and it
will take a bit of time for them to learn."
http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/lib/libc/crypt/arc4random.c?rev=1.26&content-type=text/x-cvsweb-markup
I would move these functions to Cygwin only since they were not present in Newlib.
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