fixed bugs in urfd.* file handlers

reflector/BlackWhiteSet.cpp

@@ -97,7 +97,7 @@ bool CBlackWhiteSet::ReloadFromFile(void)
 {
 	bool ok = false;
 
-	if ( m_Filename.empty() )
+	if ( ! m_Filename.empty() )
 	{
 		ok = LoadFromFile(m_Filename);
 	}

reflector/BlackWhiteSet.h

@@ -31,7 +31,7 @@ class CBlackWhiteSet
 {
 public:
 	// constructor
-	CBlackWhiteSet() : m_Filename(nullptr), m_LastModTime(0) {}
+	CBlackWhiteSet() : m_LastModTime(0) {}
 
 	// locks
 	void Lock(void)   const { m_Mutex.lock(); }

reflector/InterlinkMap.cpp

@@ -33,7 +33,7 @@
 
 CInterlinkMap::CInterlinkMap()
 {
-	m_Filename = nullptr;
+	m_Filename.clear();
 	::memset(&m_LastModTime, 0, sizeof(time_t));
 }
 
@@ -119,7 +119,7 @@ bool CInterlinkMap::LoadFromFile(const std::string &filename)
 		file.close();
 
 		// keep file path
-		m_Filename = filename;
+		m_Filename.assign(filename);
 
 		// update time
 		GetLastModTime(&m_LastModTime);