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From: dododge@wam.umd.edu (David O. Dodge)
Newsgroups: comp.sys.apollo
Subject: how does "bldt" get its information
Keywords: bldt apollo undocumented
Message-ID: <1991Jun25.060026.24045@wam.umd.edu>
Date: 25 Jun 91 06:00:26 GMT
Sender: usenet@wam.umd.edu (USENET Posting)
Organization: University of Maryland at College Park
Lines: 25

I've been wondering about this for quite some time, and some small
experimentation hasn't revealed too much:

Exactly how does the bldt program get the information to display the
kernal build version/date? For example, on my node here at home it
says:

AEGIS2-DOMAIN/IX kernal, revision 9.7 , Wednesday, October 28, 1987   5:13:28 pm.

I know it gets this from some sort of system call because if I run the
9.7 version of bldt on an SR10 node it gives me the proper version/etc.
So the question is: which call does it and what's the invoking parameters?
I'm pretty sure this isn't documented anywhere but has anyone figured it
out?

On the SR10.3 system at work I used "nm" to get a list of routines called
(is there an equivalent under 9.7 *AEGIS*? ), then proceeded to replace the
calls one by one with my own version (by using inlib) that printed out what
came in, and proceeded to see what happened. I could get the program to
crash, and I could make things like the node name disappear, but I never
did figure out where that kernal string comes from.

Any information appreciated...

                                    Dave Dodge/dododge@wam.umd.edu