Perl File::Copy / Upload host cert is broken somehow

Hi!

I noticed the Perl File::Copy is broken. In current 2.1.1 I'm no more able to
upload a host cert when configuring an Ipsec vpn connection. I always get an
errormessage "Certificate file move failed: ", see screenshot [1].

The corresponding code is in ipsec.cgi line 718:
------------------------ Code start -----------------------------------
move($filename, "/var/ipcop/certs/$cgiparams{'NAME'}cert.pem");
if ($? ne 0) {
    $errormessage = "$Lang::tr{'certificate file move failed'}: $!"; 
    unlink ($filename); 
    goto VPNCONF_ERROR;
}
------------------------ Code end -------------------------------------
Here $? is always '512', normally move() should return with 1 or 0 [2]. Also
the file was successfully moved (or at least copied), I can see the file
in /var/ipcop/certs/! And the reason $! is empty!

It seams there is a system call inside move() which is failing(?) [3][4], I
don't know.

This issue is not present in 2.0.6 and it is not a local problem by my because
those .iso's from Olaf are also showing the same behavior. I have tried to
identify the SVN commit which broke it but was not successful. I have compiled
around 15 different svn revs but didn't found it. 

Here are my results from the latest builds:
Build order | SVN Rev   | Error avail.?
------------|-----------|---------------
    1       | 6903      | Error avail.
    2       | 6902      | Error avail.
    3       | 6863      | OK, no Error
    4       | 6864      | OK, no Error
    5       | 6882      | OK, no Error
    6       | 6883      | OK, no Error
    7       | 6899      | OK, no Error
    8       | 6900      | OK, no Error
    9       | 6901      | OK, no Error
   10       | 6902 again| OK, no Error now!
   11       | 7031      | Error avail.

I did always "svn up -r nnnn, make.sh clean, make.sh prefetch, make.sh build"
between every build. Before the latest 7031 build I additionally did a "make.sh
ccach_clean, make.sh toolchain" before the build.

I'm very confused what to do now. Any Ideas?

Buildmachine is an up-to-date Debian 6 (Squeeze). IIRC Olaf is also building
on Debian 6?

Achim


[1] http://s1.directupload.net/images/130517/b279tmdq.png
[2] http://perldoc.perl.org/File/Copy.html#RETURN
[3] http://www.perlmonks.org/?node_id=818402
[4] http://perldoc.perl.org/functions/system.html


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