0032314: Data Exchange - Reading corrupted STEP files crashes

RWAxis2Placement3d:
 fixed problem with reading parameters ( if sub-entity invalid, set has-parameter to false )

diff --git a/src/RWStepGeom/RWStepGeom_RWAxis2Placement3d.cxx b/src/RWStepGeom/RWStepGeom_RWAxis2Placement3d.cxx
index 805ec4912a9a014f8317ae8ca7bc41904950fe0b..d1ab51f72edbd613861c84f84ec97131ed964598 100644 (file)
--- a/src/RWStepGeom/RWStepGeom_RWAxis2Placement3d.cxx
+++ b/src/RWStepGeom/RWStepGeom_RWAxis2Placement3d.cxx
@@ -50,26 +50,28 @@ void RWStepGeom_RWAxis2Placement3d::ReadStep
        // --- own field : axis ---
 
        Handle(StepGeom_Direction) aAxis;
-       Standard_Boolean hasAaxis = Standard_True;
-       if (data->IsParamDefined(num,3)) {
+       Standard_Boolean hasAaxis = Standard_False;
+       if (data->IsParamDefined(num,3))
+       {
          //szv#4:S4163:12Mar99 `Standard_Boolean stat3 =` not needed
-         data->ReadEntity(num, 3,"axis", ach, STANDARD_TYPE(StepGeom_Direction), aAxis);
+               hasAaxis = data->ReadEntity(num, 3,"axis", ach, STANDARD_TYPE(StepGeom_Direction), aAxis);
        }
-       else {
-         hasAaxis = Standard_False;
+       else
+       {
          aAxis.Nullify();
        }
 
        // --- own field : refDirection ---
 
        Handle(StepGeom_Direction) aRefDirection;
-       Standard_Boolean hasArefDirection = Standard_True;
-       if (data->IsParamDefined(num,4)) {
+       Standard_Boolean hasArefDirection = Standard_False;
+       if (data->IsParamDefined(num,4))
+       {
          //szv#4:S4163:12Mar99 `Standard_Boolean stat4 =` not needed
-         data->ReadEntity(num, 4,"ref_direction", ach, STANDARD_TYPE(StepGeom_Direction), aRefDirection);
+               hasArefDirection = data->ReadEntity(num, 4,"ref_direction", ach, STANDARD_TYPE(StepGeom_Direction), aRefDirection);
        }
-       else {
-         hasArefDirection = Standard_False;
+       else
+       {
          aRefDirection.Nullify();
        }