Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!unisoft!peritek!dig
From: dig@peritek.UUCP (Dave Gotwisner)
Newsgroups: comp.sources.d
Subject: Re: getty/login for callback
Keywords: tip getty login
Message-ID: <623@peritek.UUCP>
Date: 12 Apr 89 13:55:08 GMT
References: <180001@mechp10.UUCP> <13853@rpp386.Dallas.TX.US> <797@twwells.uucp> <14U6Pf88Sj1010WE=r6@amdahl.uts.amdahl.com>
Distribution: usa
Organization: Peritek Corp., Oakland, CA
Lines: 33

In article <14U6Pf88Sj1010WE=r6@amdahl.uts.amdahl.com>, shs@uts.amdahl.com (Steve Schoettler) writes:
# In article <597@peritek.UUCP> dig@peritek.UUCP (Dave Gotwisner) writes:
# >In article <797@twwells.uucp>, bill@twwells.uucp (T. William Wells) writes:
# >> : In article <180001@mechp10.UUCP> klein@mechp10.UUCP (Greg Klein) writes:
# >> : >I need the source code for getty(1) and login(1) or something similar if
# >> : >a public domain version don't exist.  I want to modify them to spawn ct(1)
# >> : >instead of a shell to dial back the user.  Please email or post (to
# >> : >comp.sources.d ?). Thanks.
# >> 
# > [stuff deleted]
# 
# I wrote something like this by modifying the standard unix tip program.
# This allowed taking advantage of a standard text file format for storing phone
# numbers, baud rates, etc.  This also allows operation under a variety of
# modems (hayes and ventel).
# The program was invoked with "ntip myname", where there was an entry for
# myname in /etc/remote.
# 
# All you have to do is find the place where tip makes the connection,
# and fork a shell, setting stdin and stdout to the serial port.  I
# think the command I actually used inside my exec was "rlogin localhost",
# because I had trouble creating a getty on the dial out line.  You can
# set stdin and stdout of the shell with the dup() command.

This works fine, if you are calling from a computer.  If I have a terminal
at home (not a PC or workstation), I cannot run tip, I need some secure
program running on the UNIX box that I am calling to prevent illegal logins.
-- 
------------------------------------------------------------------------------
Dave Gotwisner					UUCP:  ...!unisoft!peritek!dig
Peritek Corporation				       ...!vsi1!peritek!dig
5550 Redwood Road
Oakland, CA 94619				Phone: 1-415-531-6500