Re: [xml] int conversion error in xmlSchemaValidateFacet

[Daniel Veillard <veillard redhat com>]

On Wed, Nov 19, 2003 at 12:31:18PM +0100, rost lo-res org wrote:
> Hi,
>
> I encountered a bug when validating an element containing an optional
> string with a maxlength-facet set. The problem seems to be that
> xmlUTF8StrLen returns a signed int which is -1 in case the pointer to
> string is NULL (which is the case if the optional string is empty).
> However, in xmlSchemaValidateFacet the variable (len) containing the
> length of the string is an unsigned int so the -1 gets implicitely
> converted to 4294967295.

  Hum, this sounds a good analysis :-)

> Any comments ? I have included an example and a really small patch as an
> attachement which should fix the problem. I didn't want to patch
> xmlUTF8Strlen since this might do more harm to other routines.
[...]
> BTW: I didn't know if sending patches to the list is welcome. In case
> there is another procedere please let me know so I don't spoil the list
> with unwanted posts.

Patches are welcome :-), especially if they come with a good explanation !
But it seems you forgot the attachments :-)

Daniel

-- 
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