UNIX daemon for limiting user time on the machine.
a0b03ac870
The username and hostname in a utmp entry is not guarranteed to be NUL terminated. Specifically, if a user's name is exactly UT_NAMESIZE (32 on most systems today), the last character will not in fact be NUL. This creates a problem in the line 866 for example, where strncpy is used to copy all but the last byte of the utmp username in user. This will cause an error in the specific case where strlen(utmpp->ut_user) = UT_NAMESIZE. The solution is to simply make user and host one byte longer, thereby letting them have a place for the terminating NUL, after this, they can be treated as regular strings without any error or extra precaution. |
||
|---|---|---|
| debian | ||
| Makefile | ||
| README | ||
| timeoutd.8 | ||
| timeoutd.c | ||
| timeouts | ||
| timeouts.5 | ||
TIMEOUTD 1.5 by Shane Alderton Timeoutd is a programme which allows you to control the following characteristics on a user by user and/or group by group basis for each tty on your system: - maximum idle time - maximum time per session - maximum time per day - times when people can/can't login on specific ttys To build timeoutd, you should make any changes to the makefile for your preferred compilation options, then simply: make The next step is to install a timeouts file in /etc specifying the parameters for each line/user/group combination. You can use the sample file provided in the distribution as a starting point after reading the timeoutd.8 and timeouts.5 man pages. Once you have installed the timeouts file in /etc, you can type: make install to install the timeoutd binaries and man pages. Then it is just a matter of running /usr/sbin/timeoutd. You may want to add a line to your /etc/rc or /etc/rc.local (or whatever) to run timeoutd at boot time. If you wish, you can also modify your login programme to have timeoutd run at login time to check whether each user is allowed to login or not. Otherwise, users who are not allowed to login will be logged off within 1 minute of logging in. Another (albeit less certain) way of doing this is to put the following line in /etc/profile near the top of the file: /usr/etc/timeoutd `whoami` `basename \`tty\`` || exit Please send bugs, comments, suggestions to: shanea@bigpond.net.au (Shane Alderton)