Re: Symbolic link in MS-DOS

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Article #6898

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#6898

From: Fridrik Skulason
Date: Thu, 30 May 1991 20:08

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In article <1991May29.153829.8742@bullet.ecf.toronto.edu> xiaoy@bullet.ecf (XIAO  Yan) writes:
>... so I assume that it is feasible to have symbolic link...

Well, yes and no - I did write such a program once, and it works (sort of).
It creates a link by creating a small program containing a special header
and the name of the "linked" file or directory.

A small TSR program will then intercept the DOS "Open" function.  

The program is not finished (it does not intercept FCB calls) - maybe I'll
get the time soon, but considering the number of new viruses awaiting
analysis I doubt it... :-(

-frisk

Fridrik Skulason                 Technical Editor of the Virus Bulletin (UK)  
(author of F-PROT)               E-Mail: frisk@rhi.hi.is    Fax: 354-1-28801

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!rpi!uupsi!sunic!isgate!krafla!frisk
From: frisk@rhi.hi.is (Fridrik Skulason)
Newsgroups: comp.os.msdos.programmer
Subject: Re: Symbolic link in MS-DOS
Message-ID: <3215@krafla.rhi.hi.is>
Date: 30 May 91 20:08:36 GMT
References: <1991May29.153829.8742@bullet.ecf.toronto.edu> <1991May29.165933.12688@borland.com>
Reply-To: frisk@rhi.hi.is (Fridrik Skulason)
Organization: University of Iceland (RHI)
Lines: 17

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