As you can see from the output of this program, when I attempt to chroot a directory other than my home directory, chroot fails. But the permissions and ownership of the two directories is exactly the same.

Thus this failure is occuring due to some variable not stated in the chroot manpgage and that is not file ownership or permissions.

So, if some kind genie/guru could tell me the appropriate magic incantation to cast over this code to get it to chroot in both cases, I would appreciate it.

This is Perl 5.6.1 by the way. 


sub ls_ld {
    my @dir = split '/', $_[0];
    my $ret_text;
    for (2 .. $#dir) {
    my $path = join '/', @dir[0..$_];
    my $ls_ld = `ls -ld $path`;
    $ret_text .= $ls_ld;
    }
    $ret_text;
}

my %dir =
    (
     home  => '/home/tmbranno',
     other => '/home/tmbranno/src/Net/FTPServer/ARU/ftp-dir/t'
     );

map {
    chroot $dir{$_} or
    die
        sprintf "cannot chroot: $dir{$_}: $!\n all paths of this:\n%s"
+,
        ls_ld($dir{$_})
            ;
} (keys %dir);

[download]

{ap555sun:tmbranno:tmbranno_1693779_arulinkftp:arudev}133> /home/tmbra
+nno/src/te 
sts  
% perl chroot.pl
perl chroot.pl

cannot chroot: /home/tmbranno/src/Net/FTPServer/ARU/ftp-dir/t: Not own
+er
 all paths of this:
drwxr-xr-x  19 tmbranno g680        8192 May  8 15:52 /home/tmbranno
drwxr-xr-x  15 tmbranno g680        8192 May  3 09:59 /home/tmbranno/s
+rc
drwxr-xr-x   3 tmbranno g680          96 May  3 09:59 /home/tmbranno/s
+rc/Net
drwxr-xr-x   3 tmbranno g680          96 May  3 09:59 /home/tmbranno/s
+rc/Net/FTPServer
drwxr-xr-x   7 tmbranno g680        8192 May  8 15:35 /home/tmbranno/s
+rc/Net/FTPServer/ARU
drwxr-xr-x   4 tmbranno g680          96 May  8 15:26 /home/tmbranno/s
+rc/Net/FTPServer/ARU/ftp-dir
drwxr-xr-x   2 tmbranno g680          96 May  8 17:20 /home/tmbranno/s
+rc/Net/FTPServer/ARU/ftp-dir/t
{ap555sun:tmbranno:tmbranno_1693779_arulinkftp:arudev}134> /home/tmbra
+nno/src/te 
sts  
%

[download]

In reply to chroot fails for no obvious reason by princepawn

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