Date   : Tue, 17 Dec 1991 00:17:30 GMT
From   : zephyr.ens.tek.com!wrgate!amadeus!donk@uunet.uu.net (Donald C. Kirkpatrick)
Subject: Why does PIP modify S1 of the FCB?

This weekend I discovered that the stock Digital Research version of
PIP modifies the S1 field of the destination file FCB after that file
has been created for an append operation. Has anyone ever disassembled
PIP or would otherwise know what is up?

Just to refresh your memory, the S1 field in the FCB is listed as
"reserved" but otherwise unused in a standard Digital Research BDOS.
The trend today is to use this field to save the user number for a
file, making it easier to locate in subsequent accesses. The values
being stored in this field by PIP have no obvious connection to the
files. I thought at first it might be a record count, but the value
didn't seem to follow file size.

Anybody have any clue?

--
       -Don Kirkpatrick (donk@amadeus.WR.TEK.COM)
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