| // Copyright 2016 the V8 project authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include <limits.h> |
| #include <stddef.h> |
| #include <stdint.h> |
| |
| #include "include/v8.h" |
| #include "src/heap/factory.h" |
| #include "src/objects-inl.h" |
| #include "src/regexp/jsregexp.h" |
| #include "test/fuzzer/fuzzer-support.h" |
| |
| namespace i = v8::internal; |
| |
| void Test(v8::Isolate* isolate, i::Handle<i::JSRegExp> regexp, |
| i::Handle<i::String> subject, |
| i::Handle<i::RegExpMatchInfo> results_array) { |
| v8::TryCatch try_catch(isolate); |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| if (i::RegExpImpl::Exec(i_isolate, regexp, subject, 0, results_array) |
| .is_null()) { |
| i_isolate->OptionalRescheduleException(true); |
| } |
| } |
| |
| extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) { |
| v8_fuzzer::FuzzerSupport* support = v8_fuzzer::FuzzerSupport::Get(); |
| v8::Isolate* isolate = support->GetIsolate(); |
| |
| v8::Isolate::Scope isolate_scope(isolate); |
| v8::HandleScope handle_scope(isolate); |
| v8::Context::Scope context_scope(support->GetContext()); |
| v8::TryCatch try_catch(isolate); |
| |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| i::Factory* factory = i_isolate->factory(); |
| |
| CHECK(!i_isolate->has_pending_exception()); |
| if (size > INT_MAX) return 0; |
| i::MaybeHandle<i::String> maybe_source = factory->NewStringFromOneByte( |
| i::Vector<const uint8_t>(data, static_cast<int>(size))); |
| i::Handle<i::String> source; |
| if (!maybe_source.ToHandle(&source)) { |
| i_isolate->clear_pending_exception(); |
| return 0; |
| } |
| |
| static const int kAllFlags = i::JSRegExp::kGlobal | i::JSRegExp::kIgnoreCase | |
| i::JSRegExp::kMultiline | i::JSRegExp::kSticky | |
| i::JSRegExp::kUnicode | i::JSRegExp::kDotAll; |
| |
| const uint8_t one_byte_array[6] = {'f', 'o', 'o', 'b', 'a', 'r'}; |
| const i::uc16 two_byte_array[6] = {'f', 0xD83D, 0xDCA9, 'b', 'a', 0x2603}; |
| |
| CHECK(!i_isolate->has_pending_exception()); |
| i::Handle<i::RegExpMatchInfo> results_array = factory->NewRegExpMatchInfo(); |
| i::Handle<i::String> one_byte = |
| factory->NewStringFromOneByte(i::Vector<const uint8_t>(one_byte_array, 6)) |
| .ToHandleChecked(); |
| i::Handle<i::String> two_byte = |
| factory->NewStringFromTwoByte(i::Vector<const i::uc16>(two_byte_array, 6)) |
| .ToHandleChecked(); |
| |
| i::Handle<i::JSRegExp> regexp; |
| { |
| CHECK(!i_isolate->has_pending_exception()); |
| v8::TryCatch try_catch(isolate); |
| // Create a string so that we can calculate a hash from the input data. |
| std::string str = std::string(reinterpret_cast<const char*>(data), size); |
| i::JSRegExp::Flags flag = static_cast<i::JSRegExp::Flags>( |
| std::hash<std::string>()(str) % (kAllFlags + 1)); |
| i::MaybeHandle<i::JSRegExp> maybe_regexp = |
| i::JSRegExp::New(i_isolate, source, flag); |
| if (!maybe_regexp.ToHandle(®exp)) { |
| i_isolate->clear_pending_exception(); |
| return 0; |
| } |
| } |
| Test(isolate, regexp, one_byte, results_array); |
| Test(isolate, regexp, two_byte, results_array); |
| Test(isolate, regexp, factory->empty_string(), results_array); |
| Test(isolate, regexp, source, results_array); |
| isolate->RequestGarbageCollectionForTesting( |
| v8::Isolate::kFullGarbageCollection); |
| CHECK(!i_isolate->has_pending_exception()); |
| return 0; |
| } |