🚀 go-pugleaf

In article <rol-190193093304@90.222.1.80> rol@grasp1.univ-lyon1.fr (Paul Rolland) writes:
>From: rol@grasp1.univ-lyon1.fr (Paul Rolland)
>Subject: Re: Unerase - how does it wor
>Date: 19 Jan 93 08:31:55 GMT

>The key, at this point, is to do supposition... Imagine that your disk is
>not fragmented. THen, your file TOTO is stored in contiguous clusters, and
>you have :
>'correct'
>---------
>FAT:   Entry number:     Content of this entry
>             3                      4
>             4                      5
>             5                    0xfff

>When it is cleared, you have :
>FAT:   Entry number:     Content of this entry
>             3                      0
>             4                      0
>             5                      0
>So, if you undelete a file, you check the FAT to see if you have enough
>CONTIGUOUS free clusters starting at the first one allocated to the file,
>and you allocate them to the file you are restoring, rewriting the FAT so
>that it is like the one marked 'correct'.


	Ok.  And what if you have more contiguous space than the actual file 
size?  UNERASE will bring back a file larger than its original size?  If so, 
unfragmenting can cause UNERASING problems too.
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