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volume8
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xlogin
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part01
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README
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1990-07-11
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This is the second release of xlogin! There has been a lot
of cleanup of the code and a few features have been added.
Please look at the manual page for more information.
CREDITS:
--------
I would like to thank Elmar Bartel and Berni Schneck here at
the TU for giving me some hints and helping me to make the code more
secure.
Lotta thanks to Tim Theisen (tim@cs.wisc.edu or uwvax!tim) from the
Department of Computer Sciences at the University of Wisconsin-Madison,
for doing the alpha and beta testing, supplying me with some code,
helping me with some design decisions and making the man-page look more
technical and correcting my English grammer and spelling. (I'm German,
as u can see from the signature ;-) ) Thank you!
ABOUT:
------
This program was written to do some stuff, which is no longer
done, when using Xdm from X Windows Version 11 (and not using sessreg).
It handles /etc/motd, /etc/nologin, user quotas (EPROCLIM, EUSERS),
/usr/adm/lastlog, /usr/adm/wtmp, /etc/utmp and $USER/.hushlogin.
For more information see the manual page.
I tried to write it as secure as possible (range checking in
strings etc.), but any further security hints are welcome.
COMPILING:
----------
There are three compiler-flags: -DHOSTNAME -DQUOTA and -DLASTLOGIN.
o if you want the utmp host field to contain the hostname if the
display string starts with ":", compile with -DHOSTNAME. This code
is useful, if the utmp/wtmp is collected on a central machine.
o if you want lastlogin records to be written, use -DLASTLOGIN
o if you want to turn on the QUOTA code use -DQUOTA
INSTALLING:
-----------
Please read the file INSTALL! It contains urgent instructions for
installing xlogin !!
The program has been tested on the following machines:
mVax II, Ultrix 3.1
DecStation 2100, Ultrix 3.1
DecStation 3100, Ultrix 3.1 and 4.0
VaxStation 3200, Ultrix 3.1 and 4.0
IBM RT, AOS 4.3
Sun 3/50, SunOS 4.0.3
Sun 4/110, SunOS 4.0.3 and 4.1
SunSparcStation 1, SunOS 4.0.3c
Hp Bobcat, BSD 4.3
Sequent symmetry, Dynix 3.0.12
Enjoy!
\Maex
+- Markus Stumpf Technische Universitaet Muenchen -+
| Institut fuer Informatik, Rechnerbetriebsgruppe |
| stumpf@informatik.tu-muenchen.de Postfach 202420 |
+- ...@{unido.uucp,relay.cs.net} D-8000 Muenchen 2, West Germany -+