Path: utzoo!attcan!uunet!bywater!scifi!njs
From: njs@scifi.UUCP (Nicholas J. Simicich)
Newsgroups: comp.sys.ibm.pc.rt
Subject: Re: TCP/IP, telnet and the RT...
Message-ID: <929@scifi.UUCP>
Date: 19 Nov 89 21:20:17 GMT
References: <16994@uhnix1.uh.edu> <605@ursa-major.SPDCC.COM> <6680@portia.Stanford.EDU> <610@ursa-major.SPDCC.COM>
Reply-To: njs@scifi.UUCP (Nicholas J. Simicich)
Distribution: na
Organization: Nick Simicich, Peekskill, NY
Lines: 24

In article <610@ursa-major.SPDCC.COM> dyer@ursa-major.spdcc.COM (Steve Dyer) writes:

>Are you telling me that AIX/RT doesn't use inetd but instead requires
>getty to be spawned and waiting on each pty??  Gad.  At least AIX PS/2
>gets THAT right.

AIX/RT does use inetd.  I didn't think that inetd had anything to do
with running getty on these ports.  Instead, I thought that was a
function of telnetd.

Essentially, what telnetd does step through the ptys using an ioctl to
determine when there is a ptc which is being waited for by open in
getty.  When it finds one, it opens the pts side.  An interesting side
effect of this is that a user program can get a login session by doing
the same thing.

>Why would telnet (or for that matter, ftp) require a pty on outgoing
>sessions?  Is this just a speculation of yours or are you relating
>the awful truth?

As far as I know, they do not.

-- 
Nick Simicich --- uunet!bywater!scifi!njs --- njs@ibm.com (Internet)