That version came from the BBN code.

On Fri, Aug 15, 2025 at 4:19 PM Tom Lyon <pugs78@gmail.com> wrote:
Yeah, I was thinking that 4.1c BSD must've had them for rlogin and telnet.

Which got me looking for Fabry and Bill Joy's design/planning documents for 4.2, which are not in the TUHS archives.
Anyone got them??

On Fri, Aug 15, 2025 at 4:15 PM Warner Losh <imp@bsdimp.com> wrote:
At the very least, 4.2BSD had them for telnet and rlogin. They were static, though. You had to MAKEDEV enough units.

Warner

On Fri, Aug 15, 2025, 5:00 PM ron minnich <rminnich@gmail.com> wrote:
That was my guess. I figured the people who did the work are on this list, and primary sources rule.

On Fri, Aug 15, 2025 at 3:56 PM Ron Natalie <ron@ronnatalie.com> wrote:
I think that wikipedia history is somewhat garbled when it comes to the UNIX implementations.