10 Dec
2019
10 Dec
'19
3:40 a.m.
Hi.
On 2019-12-09 22:38, Thomas DeBellis wrote:
I have been fixing some issues with the file access
listening (FAL)
under Tops-20.? Briefly, it would crash on listing extremely large
directories and return incorrect byte sizes and counts for files under
certain circumstances.? It also did not support anonymous access as is
currently used in HECnet (blank user name).? There were other issues.
Hum. I don't think that is correctly described. Anonymous access as such
does not exist. In VMS, there is a default account used if user/password
is not provided. Same in RSTS/E I think.
In RSX, that mechanism does not exist. However, in RSX-11M-PLUS, you do
have proxy access. That works by the serving side being able to map a
remote user to some local user. In RSX that can be done with wildcards
as well, so I've essentially setup that any remote user for which I do
not have a more precise proxy entry, they go to a default proxy entry
with maps to a specific local user.
But for that to work, both sides must support proxy access. So blank
usernames is not what is going on, really...
It's been a bit of a slog, the first two issues
taking a considerable
amount of time to solve.? However, they're fixed and I've got some
prototype anonymous code running.? I would say that I am about 1 to 2
months away from an alpha test; the configurable restriction parsing is
nearly done, hooks remain to be into DAP functions and deployment
documentation to be written.
Questions:
1. My own version of FAL appears quite dated; it only has edits to
Tops-20 V6.1 (1985), whereas the last monitor distributions were in
the 7 series.
* Does anybody have any source files later than that for Tops-20?
Not me. I seem to remember having seen sources for lots of stuff for
Tops-10, and I'm trying to remember if I also saw Tops-20 code. Maybe
someone else knows better.
2. What is the last version of DAP (any platform) for
which a
specification exists?
The only specifications I know of are for DAP V5.6, which is dated 1980.
Which really sucks, because clearly newer versions exist. RSX claims to
be talking DAP V7.1 for example. But I haven't seen a spec for it anywhere.
3. The implementing DAP module (DAPLIB) appears even
older, apparently
dating to V6.0, 1981 time-frame (which seems incorrect).? It
supports DAP 5.6, for which I have the specifications.
* It does /not/ support $RENAME (ACCFUNC 3), which I found
remarkable.? Is $RENAME supported on all other platforms?
It's certainly supported under RSX, and without doubt also under VMS.
* I note that ACCFUNC 5 is reserved.? Is this
used now?
* Is ACCFUNC 0 used?? For what?
* Is any ACCFUNC later than 8 defined?? What is the first free one?
No idea about those. I could go and check RSX sources when I have some
time, but not tonight...
Johnny
--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt at softjar.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol