Fix extended method types parsing on 32-bit binaries

Hanrovey · Feb 26, 2013 · e4fc432 · e4fc432
1 parent 01679db
commit e4fc432
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/Source/CDObjectiveC2Processor.m b/Source/CDObjectiveC2Processor.m
@@ -85,7 +85,7 @@ - (CDOCProtocol *)protocolAtAddress:(uint64_t)address;
         objc2Protocol.extendedMethodTypes     = 0;
 
         CDMachOFileDataCursor *extendedMethodTypesCursor = nil;
-        BOOL hasExtendedMethodTypesField = objc2Protocol.size >= (offsetof(struct cd_objc2_protocol, extendedMethodTypes) + sizeof(objc2Protocol.extendedMethodTypes));
+        BOOL hasExtendedMethodTypesField = objc2Protocol.size > 8 * [self.machOFile ptrSize] + 2 * sizeof(uint32_t);
         if (hasExtendedMethodTypesField) {
             objc2Protocol.extendedMethodTypes = [cursor readPtr];
             if (objc2Protocol.extendedMethodTypes != 0) {