Add DOM Configurator fuzzer (#460)

Signed-off-by: Adam Korczynski <[email protected]>

src/fuzzers/cpp/CMakeLists.txt

@@ -18,10 +18,11 @@
 set(ALL_LOG4CXX_FUZZERS
     PatternLayoutFuzzer
     XMLLayoutFuzzer
-    HTMLLayoutFuzzer
+    HTMLLayoutFuzzer 
     JSONLayoutFuzzer
     PatternParserFuzzer
     PatternConverterFuzzer
+    DOMConfiguratorFuzzer
 )
 set(LOG4CXX_CHAR "utf-8")
 

src/fuzzers/cpp/DOMConfiguratorFuzzer.cpp

@@ -0,0 +1,37 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "stdint.h"
+#include <fuzzer/FuzzedDataProvider.h>
+#include <log4cxx/xml/domconfigurator.h>
+
+using namespace log4cxx;
+using namespace log4cxx::helpers;
+using namespace log4cxx::xml;
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
+	char filename[9] = "conf.xml";
+
+	FILE *fp = fopen(filename, "wb");
+	if (!fp) {
+		return 0;
+	}
+	fwrite(data, size, 1, fp);
+	fclose(fp);
+	DOMConfigurator::configure(filename);
+	return 0;
+}