Date: Thu, 23 Sep 2004 18:07:36 +0200 From: Arne Schwabe <arne@rfc2549.org> To: Oliver Lehmann <lehmann@ans-netz.de> Cc: freebsd-current@freebsd.org Subject: Re: bsdtar doesn't detect end of tape Message-ID: <86r7ot0y0n.fsf@kamino.rfc1149.org> In-Reply-To: <20040923175411.7eeb0ee9.lehmann@ans-netz.de> (Oliver Lehmann's message of "Thu, 23 Sep 2004 17:54:11 %2B0200") References: <20040923062411.7b5a70d7.lehmann@ans-netz.de> <20040923175411.7eeb0ee9.lehmann@ans-netz.de>
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Oliver Lehmann <lehmann@ans-netz.de> writes:
> Tim Kientzle wrote:
>
>> Try the attached patch to src/lib/libarchive,
>> rebuild libarchive and bsdtar and let me
>> know if it fixes it for you.
>
> It looks like the patch is against the wrong file. IT actually will turn
> current to stable... But i think wee need the other direction ;) Can you
> please "turn it around" and resend it?
Look at patch -R :)
-R, --reverse
tells patch that this patch was created with the old and new files
swapped. (Yes, I'm afraid that does happen occasionally, human
nature being what it is.) Patch will attempt to swap each hunk
around before applying it. Rejects will come out in the swapped
format. The -R option will not work with ed diff scripts because
there is too little information to reconstruct the reverse opera-
tion.
If the first hunk of a patch fails, patch will reverse the hunk to
see if it can be applied that way. If it can, you will be asked
if you want to have the -R option set. If it can't, the patch
will continue to be applied normally. (Note: this method cannot
detect a reversed patch if it is a normal diff and if the first
command is an append (i.e. it should have been a delete) since
appends always succeed, due to the fact that a null context will
match anywhere. Luckily, most patches add or change lines rather
than delete them, so most reversed normal diffs will begin with a
delete, which will fail, triggering the heuristic.)
--
compiling millions of tiny c-programs...done
checking for a working configure script... not found
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