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54 lines
1.8 KiB
54 lines
1.8 KiB
// Copyright 2017 Google Inc. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "libxml/parser.h"
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#include "libxml/xmlsave.h"
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#include "examples/xml/xml.pb.h"
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#include "examples/xml/xml_writer.h"
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#include "src/libfuzzer/libfuzzer_macro.h"
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namespace {
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protobuf_mutator::protobuf::LogSilencer log_silincer;
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void ignore(void* ctx, const char* msg, ...) {}
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template <class T, class D>
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std::unique_ptr<T, D> MakeUnique(T* obj, D del) {
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return {obj, del};
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}
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}
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DEFINE_PROTO_FUZZER(const protobuf_mutator::xml::Input& message) {
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std::string xml = MessageToXml(message.document());
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int options = message.options();
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// Network requests are too slow.
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options |= XML_PARSE_NONET;
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// These flags can cause network or file access and hangs.
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options &= ~(XML_PARSE_NOENT | XML_PARSE_HUGE | XML_PARSE_DTDVALID |
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XML_PARSE_DTDLOAD | XML_PARSE_DTDATTR);
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xmlSetGenericErrorFunc(nullptr, &ignore);
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if (auto doc =
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MakeUnique(xmlReadMemory(xml.c_str(), static_cast<int>(xml.size()),
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"", nullptr, options),
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&xmlFreeDoc)) {
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auto buf = MakeUnique(xmlBufferCreate(), &xmlBufferFree);
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auto ctxt =
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MakeUnique(xmlSaveToBuffer(buf.get(), nullptr, 0), &xmlSaveClose);
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xmlSaveDoc(ctxt.get(), doc.get());
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}
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}
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