[SSSD] [PATCH] Replace space: add some checks

Jakub Hrozek jhrozek at redhat.com
Mon Sep 1 14:47:36 UTC 2014


On Tue, Aug 26, 2014 at 05:46:33PM +0200, Sumit Bose wrote:
> On Tue, Aug 26, 2014 at 03:56:50PM +0200, Jakub Hrozek wrote:
> > On Mon, Aug 25, 2014 at 06:27:01PM +0200, Sumit Bose wrote:
> > > Hi,
> > > 
> > > this patch adds some additional checks to the logic or replacing space
> > > with a different character. The idea is to not replace the space if we
> > > might run into trouble with the modified name and log an error.
> > > 
> > > As mentioned in the commit message if the original name already contains
> > > the replacement character the original name is used and if the input for
> > > the revers operation contains both space and the replacement character
> > > the input is returned unmodified as well. As an alternative it would be
> > > possible to return NULL and cause an error during the lookup. I think
> > > returning the unmodified name is more user friendly. The admin might
> > > wonder why the space is not replaced but at least the name is resolved.
> > > 
> > > With this patch a name like 'abc def_ghi' is return unmodified if the
> > > replacement character is '_' . But without the check 'abc_def_ghi' is
> > > returned which cannot be resolved back which might cause more trouble
> > > than the space in the name.
> > > 
> > > bye,
> > > Sumit
> > 
> > 
> > Did you consider shouting to syslog so that the failure is better
> > discoverable for the admin?
> 
> New version calling sss_log() as well is attached. Please note that
> sss_log() might be broken in master, see my other patch for this.
> 
> bye,
> Sumit

Thank you, ACK.



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