On Wed, Jan 19, 2022 at 05:13:18PM +0900, Michael Paquier wrote:
> On Tue, Jan 11, 2022 at 10:08:13PM -0600, Justin Pryzby wrote:
> > I asked about that before.  Right now, it'll exit(1) when mkdir fails.
> > 
> > I had written a patch to allow "." by skipping mkdir (or allowing it to 
> > fail if
> > errno == EEXIST), but it seems like an awfully bad idea to try to make that
> > work with rmtree().

I still don't know if it even needs to be configurable.

> - Add some sanity check about the path used, aka no parent reference
> allowed and the output path should not be a direct parent of the
> current working directory.

I'm not sure these restrictions are needed ?

+       outputpath = make_absolute_path(log_opts.basedir);                      
                                                                    
+       if (path_contains_parent_reference(outputpath))                         
                                                                    
+               pg_fatal("reference to parent directory not allowed\n");        
                                                                    

Besides, you're passing the wrong path here.

> I have noticed a couple of incorrect things in the docs, and some
> other things.  It is a bit late here, so I may have missed a couple of
> things but I'll look at this stuff once again in a couple of days.

> +      <command>pg_upgrade</command>, and is be removed after a successful

remove "be"

> +       if (mkdir(log_opts.basedir, S_IRWXU | S_IRWXG | S_IRWXO))

S_IRWXG | S_IRWXO are useless due to the umask, right ?
Maybe use PG_DIR_MODE_OWNER ?

> +       if (mkdir(log_opts.basedir, S_IRWXU | S_IRWXG | S_IRWXO))
> +               pg_fatal("could not create directory \"%s\": %m\n", 
> filename_path);
> +       if (mkdir(log_opts.dumpdir, S_IRWXU | S_IRWXG | S_IRWXO))
> +               pg_fatal("could not create directory \"%s\": %m\n", 
> filename_path);
> +       if (mkdir(log_opts.logdir, S_IRWXU | S_IRWXG | S_IRWXO))
> +               pg_fatal("could not create directory \"%s\": %m\n", 
> filename_path);

You're printing the wrong var.  filename_path is not initialized.

-- 
Justin


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