Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!ames!uhccux!munnari.oz.au!uniwa!DIALix!bernie
From: bernie@DIALix.oz.au (Bernd Felsche)
Newsgroups: comp.unix.questions
Subject: Re: unlink(inode)? or how to remove file with '/' in its name
Message-ID: <603@DIALix.oz.au>
Date: 17 Nov 90 06:32:37 GMT
References: <1990Oct18.030832.10894@melb.bull.oz.au> <1990Oct21.002523.27266@virtech.uucp> <27087@mimsy.umd.edu> <1990Oct21.112102.1478@hq.demos.su>
Organization: DIALix Services, Perth Western Australia
Lines: 31

In <1990Oct21.112102.1478@hq.demos.su>
	avg@hq.demos.su (Vadim G. Antonov) writes:

>Hm. What are you talkin' about? The fastest and simpliest way to
>get rid of this weird file is to open your FM at the page describing
>file systems structure and enter:

>	adb -w /dev/dskNNN
	^^^^^^^
Who's still got adb?  I used fsdb for much the same thing.

>Find the directory entry on the disk, write something valid instead of /,
>mount disk and remove it with vanilla rm. Of course it is not a task for
>Pascal programmers. ;-)

Heck, I could write a setuid program to do it!

(Very sleazy indeed, as it would fetch the inode and filesystem 
info for the directory to fsdb via a pipe: because I'm too lazy 
to write a subset of fsdb myself.)

You _don't_ even have to umount the filesystem, because the only 
change you are making is to the filename, which can't be de-referenced 
anyway (almost said "unlinked" :-)), until you rewrite the 
directory block.

On second thought, Pascal programmers should stick to paper... :-)
-- 
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