Re: lib/45148: dup2(3) and dup3(3) should support EINVAL

[Jukka Ruohonen <jruohonen%iki.fi@localhost>]

On Sun, Jul 17, 2011 at 03:25:02AM +0000, David Holland wrote:
>  dup3 should be a superset of dup2, IOW, dup2(a, b) === dup3(a, b, 0).
>  Anything else is insane and begging for bizarre problems in the future.

dup3() is Linux-specific function. I think it is important to do what Linux
does. (If it was up to NetBSD, I doubt whether we would even have it.)