Fixed potential buffer overflow of user file name in create_samples_app

apps/createsamples/utility.cpp

@@ -70,7 +70,7 @@ using namespace cv;
 
 static int icvMkDir( const char* filename )
 {
-    char path[PATH_MAX];
+    char path[PATH_MAX+1];
     char* p;
     int pos;
 
@@ -83,7 +83,8 @@ static int icvMkDir( const char* filename )
     mode = 0755;
 #endif /* _WIN32 */
 
-    strcpy( path, filename );
+    path[0] = '\0';
+    strncat( path, filename, PATH_MAX );
 
     p = path;
     for( ; ; )