[jira] Commented: (XERCESC-1051) Crash when maxOccurs >= 200000

["Igor Sakhnov (JIRA)" <xe...@xml.apache.org>]

    [ https://issues.apache.org/jira/browse/XERCESC-1051?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12502163 ] 

Igor Sakhnov commented on XERCESC-1051:
---------------------------------------

Change maxOccurs does not help, try following schema and data:
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
    <xs:element name="season">
    <xs:complexType>
        <xs:sequence minOccurs="100" maxOccurs="300">
           <xs:element name="spring" minOccurs="10" maxOccurs="99"/>    
           <xs:element name="summer" minOccurs="10" maxOccurs="99"/>    
        </xs:sequence>
    </xs:complexType>
    </xs:element>  
</xs:schema>

<season>
        <spring>cool</spring>
        <summer>warm</summer>
</season>

Any suggestion on what can be tweaked? And yes, our developers submitted varios fixes for different items and as far as I know there was no feedback :)

> Crash when maxOccurs >= 200000
> ------------------------------
>
>                 Key: XERCESC-1051
>                 URL: https://issues.apache.org/jira/browse/XERCESC-1051
>             Project: Xerces-C++
>          Issue Type: Bug
>          Components: Validating Parser (Schema) (Xerces 1.5 or up only)
>    Affects Versions: 2.3.0
>         Environment: Operating System: Windows NT/2K
> Platform: PC
>            Reporter: Frank Rast
>            Assignee: Alberto Massari
>
> Parser crashes in ContentSpecNode.hpp: ContentSpecNode::~ContentSpecNode().
> Steps to reproduce:
> validate a xml file against a schema with an element having a maxOccurs >= 
> 200000.
> Assumed cause:
> Stack overfow
> Makeshift resolution:
> Set the repeat count to unbounded(-1), when maxOccurs > 500:
> inline void ContentSpecNode::setMaxOccurs(int max)
> {
>     if(max > 500) 
>         max = -1;
>     fMaxOccurs = max;
> }

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