14 Sep
2019
14 Sep
'19
3:36 a.m.
On Fri, 13 Sep 2019, Peter Jeremy wrote:
I don't recall why I had to edit the SCCS file (this was decades ago) but
it was just a plain ASCII file, with the checksum as a string of digits
up near the front somewhere.
It *may* be because I screwed up an update, and didn't want to own up to
it :-) I don't recall whether SCCS allowed updates to be backed out.
Blerk... That just tells you that the packet came across the wire more or
less OK.
-- Dave
Giggle... I
found I could actually *edit* an SCCS file, provided I reset
the checksum to zero (it was then recalculated).
I think that was deliberate. ISTR editing SCCS files and repairing the
checksum as well, though I don't recally exactly how. I believe that
NFS is much more reliable now (yes, it used to be awful).
NFS ran much faster when you turned off the UDP checksums as well.
(Though there was still the Ethernet CRC32).