ICU-511.32.tar.gz

[apple/icu.git] / icuSources / layout / LookupProcessor.cpp

diff --git a/icuSources/layout/LookupProcessor.cpp b/icuSources/layout/LookupProcessor.cpp
index 042958521938ffb8a07e29692957060f72dd1bb7..03986bafbf6f75c70e01ece7e73a3611293637b8 100644 (file)
--- a/icuSources/layout/LookupProcessor.cpp
+++ b/icuSources/layout/LookupProcessor.cpp
@@ -1,6 +1,6 @@
 /*
  *
- * (C) Copyright IBM Corp. 1998-2011 - All Rights Reserved
+ * (C) Copyright IBM Corp. and others 1998-2013 - All Rights Reserved
  *
  */
 
@@ -99,6 +99,10 @@ le_uint32 LookupProcessor::applySingleLookup(le_uint16 lookupTableIndex, GlyphIt
     }    
 
     const LookupTable *lookupTable = lookupListTable->getLookupTable(lookupTableIndex);
+    if (lookupTable == NULL) {
+        success = LE_INTERNAL_ERROR;
+        return 0;
+    }
     le_uint16 lookupFlags = SWAPW(lookupTable->lookupFlags);
     GlyphIterator tempIterator(*glyphIterator, lookupFlags);
     le_uint32 delta = applyLookupTable(lookupTable, &tempIterator, fontInstance, success);
@@ -199,6 +203,11 @@ LookupProcessor::LookupProcessor(const char *baseAddress,
         featureReferences += SWAPW(featureTable->lookupCount);
     }
 
+    if (!featureTable) {
+        success = LE_INTERNAL_ERROR;
+        return;
+    }
+
     if (requiredFeatureIndex != 0xFFFF) {
         requiredFeatureTable = featureListTable->getFeatureTable(requiredFeatureIndex, &requiredFeatureTag);
         featureReferences += SWAPW(featureTable->lookupCount);