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examples/win32test/win32test.od
author fbeaulier
Mon, 29 Aug 2011 17:44:49 +0200
changeset 666 9febdd6fdc71
parent 145 e747d2e26af0
permissions -rw-r--r--
patch from Stefan Kratochwil <entwicklung@inovel.de> : canfestival-3-fm3_698.patch
Bug:
If an object dictionary entry was requested whose size exceeds
SDO_MAX_LENGTH_TRANSFERT, the memcpy() call at line 139 of objacces.c overwrites
the memory after *pDestData which causes stack corruption.
-> Bugfix:
The bug was corrected by size checking the requested data. An 'Out of
memory' error message will be generated if the requested data exceeds
SDO_MAX_LENGTH_TRANSFERT.

Additional changes:
Added dynamic buffer allocation for the SDO transfer. This feature can be used
if SDO_DYNAMIC_BUFFER_ALLOCATION is defined in config.h. The size of the
dynamically allocated buffer is controlled with
SDO_DYNAMIC_BUFFER_ALLOCATION_SIZE.
-> Note:
This change removes the detection of OD_LENGTH_DATA_INVALID errors!
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<?xml version="1.0"?>
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<!DOCTYPE PyObject SYSTEM "PyObjects.dtd">
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<PyObject module="node" class="Node" id="27803520">
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<attr name="Profile" type="dict" id="27814048" >
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</attr>
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<attr name="Name" type="string" value="win32test" />
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<attr name="Dictionary" type="dict" id="27814192" >
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  <entry>
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    <key type="numeric" value="4096" />
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    <val type="numeric" value="301" />
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  </entry>
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  <entry>
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    <key type="numeric" value="4097" />
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    <val type="numeric" value="0" />
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  </entry>
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  <entry>
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    <key type="numeric" value="4736" />
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    <val type="list" id="27802440" >
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      <item type="numeric" value="0" />
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      <item type="numeric" value="0" />
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      <item type="numeric" value="0" />
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    </val>
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  </entry>
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  <entry>
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    <key type="numeric" value="4101" />
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    <val type="numeric" value="0" />
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  </entry>
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  <entry>
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    <key type="numeric" value="4120" />
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    <val type="list" id="27801800" >
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      <item type="numeric" value="0" />
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      <item type="numeric" value="0" />
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      <item type="numeric" value="0" />
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      <item type="numeric" value="0" />
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    </val>
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  </entry>
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</attr>
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<attr name="SpecificMenu" type="list" id="27802280" >
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</attr>
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<attr name="ParamsDictionary" type="dict" id="27814336" >
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</attr>
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<attr name="UserMapping" type="dict" id="27814480" >
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</attr>
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<attr name="DS302" type="dict" id="27814624" >
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</attr>
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<attr name="ProfileName" type="string" value="None" />
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<attr name="Type" type="string" value="master" />
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<attr name="ID" type="numeric" value="1" />
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</PyObject>
canfestival