[udp]

I wish there was a Linux distribution with the FreeBSD userland, just to bring up on occasions like this.

[DanBC]

Linux Kernel with BSD userland?

(https://www.mirbsd.org/)

(http://en.wikipedia.org/wiki/MirOS_BSD)

It's mostly OpenBSD. I haven't used it. I do know the BSD man pages are better (sometimes very very much better) than the Linux equivalents.