Problem using cdrtools for iso contents display with MC

[Paul Marwick]

Paul Hartman wrote:
> On Sun, Sep 19, 2010 at 5:29 PM, Paul Marwick<paul.marwick at gmail.com>  wrote:
>    
>> I've recently hit a problem trying to read iso files with MC. Looking at
>> /etc/mc/mc.ext, viewing iso contents is handled by this code:
>>
>> # ISO9660
>> regex/\.([iI][sS][oO])$
>>         Open=%cd %p#iso9660
>>         View=%view{ascii} isoinfo -l -i %f
>>
>> I'm not sure if this is a recent version, but under Salix, isoinfo is
>> provided by cdrtools-2.01.01a78 (a Slackware package). Using this, a number
>> of iso files give a series of parsing errors, followed by a double message
>> setting UTF.8 to match locale settings. After these messages are passed, an
>> empty directory is shown - nothing of the contents of the iso is displayed.
>>      
> I'm using mc 4.7.4 with cdrtools 3.00 and have similar parsing errors,
> but not UTF error. This happens only on some ISO files.
>    

Sounds like the same error. What is your LANG variable set to? Mine is 
en_GB.utf8, which is probably the reason for the utf8 error.  Only 
happens on some iso files.
> (There are also some files with .iso filename but are not valid ISO
> format according to isoinfo. For example I have an ISO downloaded from
> Microsoft that isoinfo cannot recognize.)
>    

:) I try and avoid anything coming from Microsoft, but I've certainly 
seen a few invalid isos.
> These 2 linux distro ISO's have different results.
>
> openSUSE-11.2-DVD-x86_64.iso is displayed properly, here are the first
> few rows from isoinfo -l -i:
>
> Directory listing of /
> d---------   0    0    0       6144 Nov  6 2009 [     29 02] .
> d---------   0    0    0       6144 Nov  6 2009 [     29 02] ..
> ----------   0    0    0    7803134 Nov  6 2009 [  18798 00] ARCHIVES.GZ;1
> ----------   0    0    0         88 Oct 30 2009 [  22609 00] AUTORUN.INF;1
> d---------   0    0    0       2048 Nov  6 2009 [     32 02] BOOT
> ----------   0    0    0    8550086 Nov  6 2009 [  22610 00] CHANGELO.;1
>
>
> Sabayon_Linux_5.2_amd64_K.iso is not, MC displays parsing errors, but
> it looks similar in isoinfo:
> Directory listing of /
> d---------   0    0    0       2048 Mar 25 2010 [    356 02] .
> d---------   0    0    0       2048 Mar 25 2010 [    356 02] ..
> ----------   0    0    0         95 Dec  4 2009 [    381 00] AUTORUN.INF;1
> d---------   0    0    0       2048 Mar 25 2010 [    364 02] BOOT
> d---------   0    0    0       4096 Mar 21 2010 [    362 02] ISOLINUX
> ----------   0    0    0          0 Feb 20 2009 [    -16 00] LIVECD.;1
> ----------   0    0    0 2119929856 Mar 25 2010 [    382 00] LIVECD.SQUASHFS;1
>
> The first parsing error is displayed for every line starting with the
> first file (.)
>    
Sounds the same.

As an experiment, I've built a copy of cdrkit-1.1.10 (took a bit of 
doing - cmake didn't like the Slackware version of libcap, so I had to 
build that first). With cdrkit replacing cdrtools, no problem with any 
of the isos that were giving me problems before.

I'm really not sure where the bug is. I can't see any difference in the 
output between isoinfo from cdrkit and cdrtools, so I don't know whether 
there is an error in the MC parser or it really is a problem with cdrtools.

Paul.


Paul.