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From: jfh@killer.UUCP (The Beach Bum)
Newsgroups: comp.unix.wizards
Subject: Re: How to set ulimit in SysV
Message-ID: <1919@killer.UUCP>
Date: Mon, 26-Oct-87 13:06:07 EST
Article-I.D.: killer.1919
Posted: Mon Oct 26 13:06:07 1987
Date-Received: Thu, 29-Oct-87 23:34:56 EST
References: <9807@brl-adm.ARPA> <259@olgb1.oliv.co.uk>
Organization: Big "D" Home for Wayward Hackers
Lines: 52
Summary: Can be fixed at login time. ... Or patched with adb.

In article <259@olgb1.oliv.co.uk>, olapw@olgb1.oliv.co.uk (Tony Walton) writes:
> In article <9807@brl-adm.ARPA>, bzs@bu-cs.bu.EDU (Barry Shein) writes:
> > 
> > >If you want to raise the ulimit for
> > >login sessions, GET THE SOURCE to /bin/login and put the ulimit call
> > >in there before it setuid's and execs the shell.

[ And one day, we'll all have the source to everything.  Wouldn't that be
  nice? ]

> There is a simple fix which we distribute to our VARs. It consists of the
> binary of
> 
> /*******************************************************/
> 
> main(argc, argv)
> int argc;
> char **argv;
> {
> 	ulimit(2,10000L);
> 	setuid(getuid());
> 	setgid(getgid());
> 	execvp(argv[1], &argv[1]);
> }
> 

[ suggestion about a setuid-root program deleted.  why not just fix it
  for good? ]

> Of course, ULIMIT is tunable in SVR3.1......

Or, you change /etc/inittab so that /etc/setulimit or whatever is called
before /etc/getty.

Try:

01:2:respawn:/etc/setulimit /etc/getty /dev/tty1 9600

instead of whatever you had (you do need to change the id and device
entries though ...)

An alternative, is to look for the parameter in /usr/include/sys/var.h
that sets the default ULIMIT (I think its CDLIMIT this week) and patch
that word in the kernel file, and reboot.  (You must reboot unless you
want to patch /etc/init's U-page.)

- John.
-- 
John F. Haugh II		HECI Exploration Co. Inc.
UUCP:	...!ihnp4!killer!jfh	11910 Greenville Ave, Suite 600
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