[606] in testers
time limits on quota
daemon@ATHENA.MIT.EDU (daemon@ATHENA.MIT.EDU)
Wed Jan 10 19:59:02 1990
From: jnrees@ATHENA.MIT.EDU
Date: Wed, 10 Jan 90 19:58:32 -0500
To: testers@ATHENA.MIT.EDU
As per Richard's suggestion, I am submitting this here...
I noticed that all users on cyrus:/u3 who were over their quota had an
extraordinary amount of time left to get below their soft quota (on
the order of 250 months). With a little experimenting, I discovered
that every user was getting 252.2 months instead of the normal 7 days.
It's not documented in any man pages that I could find, but I remember
mar pointing out a comment in some source code to me. If you make
either the Q_SETQUOTA or Q_SETQLIM call with quotactl with uid=0, the
time limit in the dqblk structure is the new initial time limit used
when users go over their quota. I then wrote a 35 line kludge to make
this call and fix cyrus:/u3.
#-------------------------------------------------------------------
#include <stdio.h>
#include <ctype.h>
#include <sys/param.h>
#include <sys/time.h>
#include <ufs/quota.h>
/* argv[1] is the block special device */
/* argv[2] is the number of days to set as the time limit */
main(int argc, char **argv)
{
char *device = argv[1];
int days, returnval, time_limit;
struct dqblk db;
sscanf(argv[2], "%d", &days);
time_limit = (days *24*60*60);
db.dqb_bhardlimit = 0;
db.dqb_bsoftlimit = 0;
db.dqb_curblocks = 0;
db.dqb_fhardlimit = 0;
db.dqb_fsoftlimit = 0;
db.dqb_curfiles = 0;
db.dqb_btimelimit = time_limit;
db.dqb_btimelimit = time_limit;
if (returnval = quotactl(Q_SETQLIM, device, 0, &db))
fprintf(stderr, "ouch! %d\n", returnval);
}
#--------------------------------------------------------------------
