Path: utzoo!attcan!uunet!lll-winken!ncis.llnl.gov!helios.ee.lbl.gov!pasteur!ucbvax!ucsd!rutgers!bpa!cbmvax!heimat!sneakers
From: sneakers@heimat.UUCP (Dan "Sneakers" Schein)
Newsgroups: comp.sys.amiga.tech
Subject: Re: Bug in FFS write-locking?
Message-ID: <6028.AA6028@heimat>
Date: 24 Jan 89 01:31:38 GMT
Followup-To: comp.sys.amiga.tech
Organization: Sneakers Computing
Lines: 43

In Message <5411@bsu-cs.UUCP>, jdh@bsu-cs.UUCP (John Hiday) writes:

>I think I have discovered a bug in the write-locking of an FFS partition.
>I have tried to send a notice to bugs@cbmvax, but I haven't gotten a reply
>back so I am assuming that nothing made it through.
>
  Thats not a good assumption.  The person doing bugs may be busy, may have 
  not checked the mail yet, or may be trying to reproduce it.

>It seems that LOCKing an FFS partition does not prohibit a program from
>writing to an existing file (appending or overwriting).  I have reproduced
>this on both my hard drive and RAD: (the only FFS devices I have).  I
>had a friend try it out too and he came up with the same results.

  The lock on my hard drive wont let me update or append a file (existing or
  not) using standard DOS commands.

>The Info command shows the partition as Read Only, and any attempt to
>create a new file or delete an old one is met with the "Volume xyz is
>write protected" requester.  However appending to and/or overwriting an
>existing file succeeds.

  See above.

>A simple way to demonstrate this is to add a comment to an existing
>Zoo archive which is on a LOCKed partition (zoo cA archivename).
>Creating a new archive will fail, but adding to an old one succeeds.

  I tried this and your right! Zoo does change the file (as indicated by the
  date stamp). But I havent been able to get anyting else (besides zoo) to
  reproduce this.

  Darn this shoots my theory of keeping the Euro-Virus out of my C: directory.

  Sneakers

--
Dan "Sneakers" Schein          {pyramid|rutgers|uunet}!cbmvax!heimat!sneakers
Sneakers Computing
2455 McKinley Ave.                     Of course heimat is an Amiga.
West Lawn, PA 19609           Doesn't everyone run UUCP & UseNet on an Amiga?

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