Hi Nathan,

You submission did make it on to osg-submissions and I reviewed it but
wasn't clear on the intention of original code and the wasn't
comfortable with the modification so I posted a query about the
original function to Paul Martz but haven't yet had a reply.

Robert.

On 28 March 2012 22:20, Nathan Monteleone <[email protected]> wrote:
>
> nbmont wrote:
>> Hi,
>>
>> Saw this in vs2010 when I tried to load an .flt file freshly made in creator 
>> but with nothing in it.  You get a string index out of range exception in 
>> PaletterRecords.cpp, line 73 where it does
>>
>>         uint32 paletteSize = in.readUInt32();
>>
>>         // Entries in vertex pool found by offset from start of this record.
>>         const int RECORD_HEADER_SIZE = 4;
>>         const int OFFSET = RECORD_HEADER_SIZE+sizeof(paletteSize);
>>
>>         std::string buffer(paletteSize,'\0');
>>         in.read(&buffer[OFFSET], paletteSize-OFFSET);
>>
>> The problem is that for an empty vertex palette, OFFSET equals paletteSize, 
>> so OFFSET is past the end of buffer.  This code normally doesn't have a 
>> problem because it's reading 0 bytes into this location anyway, but iterator 
>> debugging catches the out of range index.
>>
>> A simple if (OFFSET < buffer.size()) fixes the problem.  I attached an 
>> amended file with the fix, plus a test model that reproduces the problem.
>>
>> I know it's a little silly to be loading empty .flt files, but I can't 
>> control what people try to load and *technically* it's a valid file.
>>
>> Hope that's helpful -- thanks for all the wonderful work on OSG.
>>
>> Nathan
>
>
> bump -- did this make it to the e-mail list?
>
> ------------------
> Read this topic online here:
> http://forum.openscenegraph.org/viewtopic.php?p=46657#46657
>
>
>
>
>
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