1 // Copyright 2016 the V8 project authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include <limits.h> 6 #include <stddef.h> 7 #include <stdint.h> 8 9 #include "include/v8.h" 10 #include "src/factory.h" 11 #include "src/objects-inl.h" 12 #include "src/objects.h" 13 #include "src/regexp/jsregexp.h" 14 #include "test/fuzzer/fuzzer-support.h" 15 16 namespace i = v8::internal; 17 18 void Test(v8::Isolate* isolate, i::Handle<i::JSRegExp> regexp, 19 i::Handle<i::String> subject, i::Handle<i::JSArray> results_array) { 20 v8::TryCatch try_catch(isolate); 21 USE(i::RegExpImpl::Exec(regexp, subject, 0, results_array)); 22 } 23 24 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) { 25 v8_fuzzer::FuzzerSupport* support = v8_fuzzer::FuzzerSupport::Get(); 26 v8::Isolate* isolate = support->GetIsolate(); 27 28 v8::Isolate::Scope isolate_scope(isolate); 29 v8::HandleScope handle_scope(isolate); 30 v8::Context::Scope context_scope(support->GetContext()); 31 v8::TryCatch try_catch(isolate); 32 33 i::FLAG_harmony_regexp_lookbehind = true; 34 35 i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); 36 i::Factory* factory = i_isolate->factory(); 37 38 if (size > INT_MAX) return 0; 39 i::MaybeHandle<i::String> maybe_source = factory->NewStringFromOneByte( 40 i::Vector<const uint8_t>(data, static_cast<int>(size))); 41 i::Handle<i::String> source; 42 if (!maybe_source.ToHandle(&source)) return 0; 43 44 static const int kAllFlags = i::JSRegExp::kGlobal | i::JSRegExp::kIgnoreCase | 45 i::JSRegExp::kMultiline | i::JSRegExp::kSticky | 46 i::JSRegExp::kUnicode; 47 48 const uint8_t one_byte_array[6] = {'f', 'o', 'o', 'b', 'a', 'r'}; 49 const i::uc16 two_byte_array[6] = {'f', 0xD83D, 0xDCA9, 'b', 'a', 0x2603}; 50 51 i::Handle<i::JSArray> results_array = factory->NewJSArray(5); 52 i::Handle<i::String> one_byte = 53 factory->NewStringFromOneByte(i::Vector<const uint8_t>(one_byte_array, 6)) 54 .ToHandleChecked(); 55 i::Handle<i::String> two_byte = 56 factory->NewStringFromTwoByte(i::Vector<const i::uc16>(two_byte_array, 6)) 57 .ToHandleChecked(); 58 59 for (int flags = 0; flags <= kAllFlags; flags++) { 60 i::Handle<i::JSRegExp> regexp; 61 { 62 v8::TryCatch try_catch(isolate); 63 i::MaybeHandle<i::JSRegExp> maybe_regexp = 64 i::JSRegExp::New(source, static_cast<i::JSRegExp::Flags>(flags)); 65 if (!maybe_regexp.ToHandle(®exp)) continue; 66 } 67 Test(isolate, regexp, one_byte, results_array); 68 Test(isolate, regexp, two_byte, results_array); 69 Test(isolate, regexp, factory->empty_string(), results_array); 70 Test(isolate, regexp, source, results_array); 71 } 72 73 isolate->RequestGarbageCollectionForTesting( 74 v8::Isolate::kFullGarbageCollection); 75 return 0; 76 } 77
