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From: Lester Ingber <ingber AT alumni DOT caltech DOT edu>
Subject: Re: untarring symlinks with ../ fails randomly
Date: Thu, 28 Apr 2011 03:49:16 +0000 (UTC)
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Dan Grayson <dan <at> math.uiuc.edu> writes:

> 
> Here is a patch to tar that fixes the problem by using mtime instead of ctime.
> Yes, it's not a problem with cygwin or tar, but I see no way for users to
> figure out, under Windows, which processes are changing the status of their
> files.
> 
> diff -ur tar-1.25-copy/src/extract.c tar-1.25/src/extract.c
> --- tar-1.25-copy/src/extract.c	2010-11-01 15:34:59.000000000 -0500
> +++ tar-1.25/src/extract.c	2011-04-27 09:12:58.941555800 -0500
...
> 

I ran your patch on tar-1.26 and it compiled just fine.  With the new tar I have 
no tar/untar problems on two Win7 Ult x64 PCs running up to date Cygwins.

Thanks.

Lester



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