Re: lib/56824 (modulo by 0 in arc4random_uniform())

[Joerg Sonnenberger <joerg%bec.de@localhost>]

The following reply was made to PR lib/56824; it has been noted by GNATS.

From: Joerg Sonnenberger <joerg%bec.de@localhost>
To: Guilherme Janczak <guilherme.janczak%yandex.com@localhost>
Cc: gnats-bugs%netbsd.org@localhost, lib-bug-people%netbsd.org@localhost,
	netbsd-bugs%netbsd.org@localhost, gnats-admin%netbsd.org@localhost, joerg%netbsd.org@localhost
Subject: Re: lib/56824 (modulo by 0 in arc4random_uniform())
Date: Mon, 9 May 2022 01:05:12 +0200

 Am Sun, May 08, 2022 at 10:58:46PM +0000 schrieb Guilherme Janczak:
 > On Sun, May 08, 2022 at 10:40:10PM +0000, joerg%NetBSD.org@localhost wrote:
 > > Synopsis: modulo by 0 in arc4random_uniform()
 > >
 > > State-Changed-From-To: open->closed
 > > State-Changed-By: joerg%NetBSD.org@localhost
 > > State-Changed-When: Sun, 08 May 2022 22:40:10 +0000
 > > State-Changed-Why:
 > > This is not a bug. You are asking for a number in the range [0, 0), which is empty.
 > > A domain error is the correct result.
 > >
 > That's true, but arc4random_uniform comes from OpenBSD and their version
 > returns 0 in this case. Wouldn't it make more sense to imitate OpenBSD
 > behavior than to introduce different behavior?
 
 It doesn't make the answer less nonsensical.
 
 Joerg