Re: How to get the filename of files in an archive correctly?

On 05/05/2021 15:13, Stefan Hammerl via Dar-support wrote:
> Hello,

Hello,

> 
> while using the XML output works very well I am getting validation errors.
> I am validating against dar-catalog.dtd in catalog format version 1.2
> (which I found here:
> https://fossies.org/linux/privat/dar-2.7.0.tar.gz/dar-2.7.0/doc/dar-catalog.dtd?m=t)
> . The parser complains about missing required attributes.
> For example I have the following dar list output (of a differential archive):
> <Catalog format="1.2">
> </File>
> <File name="&quot;
> ">
> <Attributes data="deleted" metadata="absent" user="" group=""
> permissions="" atime="" mtime="1620218204" ctime="" />
> </File>
> </Catalog>
> 
> and in the DTD:
> [...]
> <!ELEMENT File (Attributes)>
> <!ATTLIST File name CDATA #REQUIRED>             <!-- string, entry
> name             -->
> <!ATTLIST File size CDATA #REQUIRED>             <!-- decimal, file
> size in bytes    -->
> <!ATTLIST File stored CDATA "" >                 <!-- decimal, stored
> size in bytes  -->
> <!ATTLIST File crc CDATA "" >                    <!-- hexadecimal, crc
> sum of file   -->
> <!ATTLIST File dirty CDATA #REQUIRED>            <!-- string, whether
> file changed during backup -->
> <!ATTLIST File sparse CDATA #REQUIRED>          <!-- string, whether
> file is sparse -->
> <!ATTLIST File delta_sig CDATA #REQUIRED>        <!-- string, whether
> delta signature is present -->
> <!ATTLIST File patch_base_crc CDATA "">          <!-- hexadecimal, crc
> sum of the delta patch when present -->
> <!ATTLIST File patch_result_crc CDATA "">        <!-- hexadecimal, crc
> sum of the delta patch resulting file when present -->
> [...]
> 
> Given these parameters the parser consequently complains about missing
> attributes "size", "dirty", "sparse" and "delta_sig".
> 
> The easiest way for me to fix that as a workaround is to remove the
> #required annotation in the DTD.

Thank you for this feedback, this seems to be an error in the DTD:
the "deleted" entries do not have to have these "size", "dirty",
"sparse" nor "delta_sig" attributes.

I thing you did the good thing, I will fix it that way or if you prefer,
you can send me a patch or propose a pull request on github,

Let me know,


> 
> Best regards,
> Stefan
> 

Cheers,
Denis