| README file for the admutils V1.23 for Linux. |
| |
| See installation instructions at the bottom. Currently the latest versions |
| of this software are 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 1.24 (20-Jun-97) |
| Small patches for glibc compat. |
| |
| Version 1.23 (6-Jun-97): |
| Patch by Christophe Thaelemans <thaele@chick.vub.ac.be> to last.c, |
| no longer considers all users logged out in case of a run-level |
| change. |
| |
| Version 1.22 (28-Jan-97): |
| Clean-up release. |
| |
| Version 1.21c (27-Jan-97): |
| Updated setpwnam.[hc] to be in sync with util-linux 2.6, this |
| also prevents passwd from copying the entire passwd YP/NIS map |
| into the local /etc/passwd. Edited setpwnam.c somewhat to |
| improve error checking, beautify the code, and remove output |
| to stderr. |
| Fixed a couple of buffer overrun nits in passwd.c, patches from |
| David Holland. |
| |
| Version 1.21b (23-Jan-97): |
| Shutdown now supports a message on the command line, a'la |
| "shutdown -f +5 'for some reason'" |
| |
| Version 1.20 (2-Nov-96): |
| Fix by Steffen Zahn <zahn@berlin.snafu.de> for shutdown.c so it |
| prints its final message. |
| |
| Version 1.19 (8-Jul-96): |
| Fix by faith@cs.unc.edu to allow C-A-D after halting in shutdown.c |
| |
| Version 1.18 (19-Nov-95): |
| passwd almost completely rewritten by Martin Schulze |
| <joey@infodrom.north.de> to use setpwnam() and support |
| more long options. There's a new man-page as well. |
| Hacked some more on Martins passwd.c to support -s and -f options. |
| The old passwd.c is in the Attic/ sub-directory. |
| Bugfix in shutdown.c to fix file modes. |
| |
| Version 1.17 (7-Oct-95): |
| Added setrlimit() calls to passwd.c and chsh.c to fix security hole |
| caused by resource limitations. Inspired by Zefram |
| <A.Main@dcs.warwick.ac.uk>. Also beefed up the ptmp locking in |
| chsh.c. |
| Added swap_off() function to shutdown.c by baekgrd@ibm.net |
| (Anders Baekgaard). |
| Bugfix in shutdown.c that makes sure wtmp gets closed. By |
| Alexandre Julliard <julliard@sunsite.unc.edu>. |
| Fixed bug in passwd.c that made it impossible to change from having |
| no password into having one. |
| |
| Version 1.16 (18-Sep-95): |
| Added feature to passwd.c by Arpad Magossanyi (mag@tas.vein.hu), |
| so root can give a password for a user on the command line. This |
| might be useful in a shell script autogenerating passwords for |
| new users. |
| |
| Added and updated manual pages for all commands by Rick Faith. |
| |
| Version 1.15d (21-Aug-95): |
| Fixed minor nit with salt generation in passwd.c |
| By Steven Reisman <sar@beehive.mn.org>. |
| |
| Version 1.15c (5-Jul-95): |
| passwd does not allow reuse of the old password when changing. |
| passwd returns 1 if the password is not changed. This was |
| suggested by Anibal Jodorcovsky <anibal@ee.mcgill.ca> who |
| also fixed my initial bug in this feature. |
| |
| passwd uses O_EXCL for opening /etc/ptmp instead of access/fopen. |
| This was suggested by jorge@un1.satlink.com (Jorge). |
| |
| Version 1.15a (12-Jun-95): |
| Fix in last.c so it does not print wtmp entries marked DEAD_PROCESS. |
| By Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> |
| |
| Version 1.15 (5-Jun-95): |
| Man-page fixes, fixes in pathnames.h to adhere to the FSSTND. |
| Fix by Rickard Faith <faith@cs.unc.edu> to passwd.c, so sanity |
| checks come before the second entry of the new password. |
| This is for Linux 1.2, GCC 2.6.2 or later. |
| |
| Version 1.14a (12-Mar-95): |
| Fixed passwd and chsh so a username that is a prefix of another |
| doesn't affect the other's password. After suggested patch |
| by Valtteri J. Karu <vatekaru@tuug.utu.fi>, but differently! |
| |
| 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) |
