Grab http://www.unc.edu/~utoddl/nss_pts_0.2.tgz if you're interested. It's GPL'd, 'cause it uses code from samba, so I don't know how that mixes/matches with other OpenAFS contribs. Just do the Right Thing.
Happy computing, -- [EMAIL PROTECTED]
In September, 2002, Todd M. Lewis wrote:
Greetings,
I've often wished "ls -l" would list the pts names of files' owners instead of their uids for people not in my password file. So I wrote up http://www.unc.edu/~utoddl/nss_pts_0.1.tgz which implements a simple
now http://www.unc.edu/~utoddl/nss_pts_0.2.tgz Unpack in AFS for that wholesome "@sys" goodness. :-)
nsswitch module that does exactly that. At least it does on Linux, and it might on Solaris, though I don't have a Sun box I can hack on to thrash out the details.
[FYI: nsswitch in a nutshell is a set of hooks into how the system looks up things -- about users, groups, hosts, services, networks, whatever. nss_pts adds a hook that makes getpwuid() know how to look in your cell's ptserver if it can't find the uid in, for example, /etc/passwd and NIS.]
In retrospect, I'm not so sure this was a good idea, but I'm putting the code out there in case someone else wants to play with it and doesn't want to start from scratch. Go ahead; knock yourself out.
So why isn't this such a good idea? Well, for one thing, if you're looking at files in some other cell, it still does the lookups against your ptserver. Also, if a uid happens to map to one of your cell's non-null instances, then you might get back a struct passwd with a pw_name that's longer than 8 characters, which could cause some programs to choke.
N.B.: It now truncates the pw_name to 8 characters.
I've been running this thing several days and it hasn't caused me any problems that I know of, but I wouldn't want to deploy a production server based on that.
Well, actually, we have deployed it on production servers since then, and they seem happy.
Think of it as a proof of concept -- maybe an ill-conceived one -- but it sure adds some meaning to most of my ls snooping around my cell. And if someone gets it working under Solaris, I'd like to know what you did.
As mentioned above, it now works on Solaris. The trick is/was, Solaris has a couple of additional fields (pw_comment and pw_age) that needed to be initialized to keep nscd from dying. It's happy now.
Happy computing,
-- +--------------------------------------------------------------+ / [EMAIL PROTECTED] 919-962-5273 http://www.unc.edu/~utoddl / / A hangover is the wrath of grapes. / +--------------------------------------------------------------+
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