OT - (maybe) Recovering a Zip File

Stephen cryptworks at gmail.com
Tue Aug 31 07:20:32 MST 2010


i have found a couple of links

http://www.gzip.org/ has a reference to fixgz and how to compile it.

also comes up as having solved it
http://www.info-zip.org/board/board.pl?m-1242984565/

not sure if you have tried those or not.

On Mon, Aug 30, 2010 at 11:16 PM, Eric Cope <eric.cope at gmail.com> wrote:
> It didn't help. I edited the program (Open Source is awesome!) to count the
> \r's and the \n's, there were 10679 missing bytes. I counted 10755 newline
> characters. I replaced the first 10679 newlines with \r\n, but it still
> couldn't find the directory... "start of central directory not found"
>
> If the error took place during FTP, then it should be correctable, right?
> Any ideas on what other characters are affected by ASCII FTP transfer?
>
> Thanks,
> Eric
>
> On Mon, Aug 30, 2010 at 7:19 PM, Jason Holtzapple <ml at bitflip.net> wrote:
>>
>> On 08/30/2010 06:51 PM, Eric Cope wrote:
>> > I transferred a zip file off of an infected Windows machine via FTP.
>> > That file was determined to be corrupt (after I wiped the drive of
>> > course). I suspect the corruption took place because I transferred the
>> > file using ASCII mode, not binary mode. Is there anyway to "repair" a
>> > zip file, like search and replacing the "\n" with a "\r\n" or some other
>> > tool, Linux based or otherwise?
>>
>> The fixgz program does exactly that.
>>
>>
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-- 
A mouse trap, placed on top of your alarm clock, will prevent you from
rolling over and going back to sleep after you hit the snooze button.

Stephen


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