Added static bool Filter::isValidFilter(int).

committer: mfx <mfx> 978705885 +0000

src/filter.cpp

@@ -78,6 +78,13 @@ const FilterImp::FilterEntry *FilterImp::getFilter(int id)
 }
 
 
+bool Filter::isValidFilter(int filter_id)
+{
+    const FilterImp::FilterEntry * const fe = FilterImp::getFilter(filter_id);
+    return fe != NULL;
+}
+
+
 /*************************************************************************
 // high level API
 **************************************************************************/

src/filter.h

@@ -61,6 +61,8 @@ public:
     void verifyUnfilter();
     bool scan(const upx_byte *buf, unsigned buf_len);
 
+    static bool isValidFilter(int filter_id);
+
 public:
     // Will be set by each call to filter()/unfilter().
     // Read-only afterwards.