- A couple of small fixes for memory and initialization problems.

This is to make valgrind happy


SKIPPED:
	psi/amorscan.c
	psi/el734hp.c
	psi/psi.c
	psi/tasscan.c

interface.c

@@ -41,7 +41,7 @@
 #include <assert.h>
 #include "fortify.h"
 #include "sics.h"
-
+#include "motor.h"
 
 /*-------------------------------------------------------------------------*/
   pIDrivable CreateDrivableInterface(void)
@@ -108,6 +108,31 @@
   {
       return (pIDrivable)FindInterface(pObject,DRIVEID);
   }  
+/*-------------------------------------------------------------------------*/
+int GetDrivablePosition(void *pObject, SConnection *pCon, float *fPos)
+{
+  pIDrivable pDriv = NULL;
+  pMotor pMot = NULL;
+  float value;
+
+  pDriv = GetDrivableInterface(pObject);
+  if(pDriv == NULL)
+  {
+    return 0;
+  }
+  if(iHasType(pObject,"Motor"))
+  {
+    pMot = (pMotor)pObject;
+    return MotorGetSoftPosition(pMot,pCon,fPos);
+  }
+  value = pDriv->GetValue(pObject,pCon);
+  if(value < 9999.99)
+  {
+    return 0;
+  }
+  *fPos = value;
+  return 1;
+}
 /*--------------------------------------------------------------------------*/
   pICountable GetCountableInterface(void *pObject)
   {