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- Comments: Gated by NETNEWS@AUVM.AMERICAN.EDU
- Path: sparky!uunet!usc!zaphod.mps.ohio-state.edu!howland.reston.ans.net!paladin.american.edu!auvm!HITECH.COM!HUNGER
- Message-ID: <9212291725.AA04612@hitech.com>
- Newsgroups: bit.listserv.novell
- Date: Tue, 29 Dec 1992 09:25:05 -0800
- Reply-To: Novell LAN Interest Group <NOVELL@SUVM.BITNET>
- Sender: NOVELERR@SUVM.SYR.EDU
- From: Henry Unger <hunger@HITECH.COM>
- Subject: execute only flag
- In-Reply-To: Jane Hesler's message of Tue,
- 29 Dec 1992 11:55:34 -0400 <9212291704.AA04579@hitech.com>
- Lines: 12
-
- I think you will find that there are architectural limitations in
- the DOS API that preclude the existance of an X flag, having nothing to
- do with NetWare. How is DOS to know whether you are reading or
- executing a file? For those programs whose overlays are
- contained in the executable, and do their own overlay management,
- how is DOS going to know if an overlay is being read to memory,
- or read to memory and then written to another medium? I imagine
- the DOS COPY command and all other commands implementing such
- functionality could artificially observe an X flag convention,
- but anyone could issue a few DOS interrupts and copy the file anyway.
-
- Henry
-