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README file for the admutils V1.14 for Linux.
See installation instructions at the bottom. Currently the latest versions
of this software is maintained at ftp://ftp.daimi.aau.dk/pub/linux/poe/
LICENSE:
This software is distributed as is without any warranty what so ever.
With respect to copyrights it is covered by the GNU Public License.
Version 1.14 (12-Feb-95):
Added options -l, -y, -i to last.c. See last.man
Version 1.13d (26-Jan-95):
Added some comments on request from Rik Faith. Compiled succesfully
on Linux 1.1.73, GCC 2.5.8, libc 4.5.26
Version 1.13c (6-Dec-94):
New versions of passwd and chsh due to Alvaro Martinez Echevarria
<alvaro@enano.etsit.upm.es>, so they will coexist with YP/NIS
passwords.
Version 1.13b (7-Nov-94):
Use fgets() + atoi() in chsh.c instead of scanf().
Version 1.12 (17-Sep-94):
Rik Faith provided patches for passwd.c to let non-alphabetics count
as digits as well, allows more obscure passwords.
Applied patches from Dave Gentzel <gentzel@nova.enet.dec.com>
to prevent dereferencing a NULL pointer, and turn off accounting
in shutdown.c
Version 1.11 (18-Aug-94):
Finally got around to making it a non-alpha version. Just a
little cleanup in Makefile
Version 1.10b (8-Jun-94):
David A. Holland <dholland@husc.harvard.edu> made me aware of a
security leak in passwd and chsh. /etc/ptmp could be forced to
be world-writeable. Fixed by hardwiring an umask of 022 into
passwd and chsh.
Vesa Ruokonen <ruokonen@taivas.lut.fi> sent me a new pathnames.h
file that shouldn't conflict with paths.h.
Cleaned the source a bit for -Wall
Version 1.10a (31-May-94):
Vesa Ruokonen <ruokonen@taivas.lut.fi> provided a patch for
passwd.c such that it will work for multiple usernames for
the same uid. I mimicked his actions on chsh.c. In both cases
I added a check to ensure that even if utmp is hacked, one can
only change the password for users with the same uid.
Version 1.9 (9-Feb-94):
Vesa Ruokonen suggested that newgrp should support passwords in
/etc/group. It now does. I mostly rewrote newgrp to make it
cleaner.
Version 1.8 (19-Jan-94):
Rik Faith provided several patches, especially for passwd.c and
some man-pages.
Version 1.7 (3-Nov-93): changes since 1.6
Shutdown can now be used as a login shell. I forget who sent me the
patch. Example /etc/passwd entry:
shutdown:dLbVbIMx7bVHw:0:0:Stopper:/:/etc/halt
The package should now be prepared to have shutdown in /sbin as well
as in /etc. utmp and wtmp are allowed in /usr/adm too. Both things
are configurable in the Makefile.
<flebbe@cygnus.tat.physik.uni-tuebingen.de> Olaf Flebbe provided a
patch for chsh.c to make it work.
This version is built under linux 0.99.13 with gcc 2.4.3 and
libc 4.4.1
Version 1.6 (1-Jun-93)
Shutdown now looks more like shutdown on SunOS, but not quite. Most
of this was done by Scott Telford (s.telford@ed.ac.uk), but I
butchered his patches somewhat. This version was built under Linux
0.99.9 with GCC 2.3.3 and libc 4.3.3.
"make install" will now install shutdown in /etc instead of /usr/bin
Version 1.5 (13-Dec-92)
This version is tested and built under Linux 0.98P6 with gcc-2.2.2d7
You will have a hard time making it work with the older compilers and
libraries.
Su is now deprecated. I believe that the GNU/FSF version is better.
CONTENTS.
last - A new and better last command, a port from BSD done by
Michael Haardt.
I put a couple of if's in so LOGIN_PROCESS entries in wtmp
are not printed.
chsh - CHangeSHell changes the shell entry in the passwd file.
Written from scratch by me.
passwd - Changes the password in the passwd file.
Also done from scratch by me.
su - A su(1) command by me.
newgrp - Sets the gid if possible, ala su(1), written by Michael
Haardt.
shutdown - Shuts down linux. Supports timed shutdowns, and sends
warnings to all users currently logged in. It then
kills all processes and unmounts file-systems etc.
Shutdown also doubles as halt and reboot commands.
Shutdown leaves the file /etc/nologin behind after shutdown,
it is wise to have a "rm -f /etc/nologin" in ones /etc/rc
Shutdown now supports a -s switch, that works in connection
with the init program in poeigl-1.7 or later, so a singleuser
reboot is possible.
Rick Sladkey <jrs@world.std.com> provided patches for better
umounting code, needed in connection with NFS.
Remy Card <card@masi.ibp.fr> provided patches for support for
fastboot/fasthalt. These create a /fastboot file on shutdown,
and /etc/rc may check for the existance of this file, to
optionally skip fsck.
example.rc An example of an /etc/rc file. Edit it to suit your own setup.
ctrlaltdel - Sets the behaviour of the Ctrl-Alt-Del combination.
"ctrlaltdel hard" makes the key-combination instantly reboot
the machine without syncing the disk or anything. This may
very well corrupt the data on the disk.
"ctrlaltdel soft" makes the key-combination send a SIGINT to
the init process. Such a command would typically be in /etc/rc.
For this to make sense you must run the init from the
poeigl-1.4 package or later. The System V compatible init in
this package won't reboot the machine when it gets a SIGINT.
Linux version 0.96b-PL1 or later is also needed for this
feature to work.
init is gone as of V1.5, it was outdated and buggy. If you want a
SYSV compatible init get the newest one from Mike Smoorenburg, called
sysvinit.tar.Z
INSTALLATION.
Simply do a
make
and then (optionally) as root:
make install
- Peter (poe@daimi.aau.dk)
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