[infra] renaming targets/ to projects/

1 files changed, 87 insertions, 0 deletions

diff --git a/projects/re2/re2_fuzzer.cc b/projects/re2/re2_fuzzer.cc
new file mode 100644
index 00000000..9c16462a
--- /dev/null
+++ b/projects/re2/re2_fuzzer.cc
@@ -0,0 +1,87 @@
+// Copyright (c) 2016 The Chromium 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 <stddef.h>
+#include <stdint.h>
+
+#include <string>
+
+#include "re2/re2.h"
+#include "util/logging.h"
+
+using std::string;
+
+void Test(const string& buffer, const string& pattern,
+          const RE2::Options& options) {
+  RE2 re(pattern, options);
+  if (!re.ok())
+    return;
+
+  string m1, m2;
+  int i1, i2;
+  double d1;
+
+  if (re.NumberOfCapturingGroups() == 0) {
+    RE2::FullMatch(buffer, re);
+    RE2::PartialMatch(buffer, re);
+  } else if (re.NumberOfCapturingGroups() == 1) {
+    RE2::FullMatch(buffer, re, &m1);
+    RE2::PartialMatch(buffer, re, &i1);
+  } else if (re.NumberOfCapturingGroups() == 2) {
+    RE2::FullMatch(buffer, re, &i1, &i2);
+    RE2::PartialMatch(buffer, re, &m1, &m2);
+  }
+
+  re2::StringPiece input(buffer);
+  RE2::Consume(&input, re, &m1);
+  RE2::FindAndConsume(&input, re, &d1);
+  string tmp1(buffer);
+  RE2::Replace(&tmp1, re, "zz");
+  string tmp2(buffer);
+  RE2::GlobalReplace(&tmp2, re, "xx");
+  RE2::QuoteMeta(re2::StringPiece(pattern));
+}
+
+// Entry point for LibFuzzer.
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
+  if (size < 1)
+    return 0;
+
+  RE2::Options options;
+
+  size_t options_randomizer = 0;
+  for (size_t i = 0; i < size; i++)
+    options_randomizer += data[i];
+
+  if (options_randomizer & 1)
+    options.set_encoding(RE2::Options::EncodingLatin1);
+
+  options.set_posix_syntax(options_randomizer & 2);
+  options.set_longest_match(options_randomizer & 4);
+  options.set_literal(options_randomizer & 8);
+  options.set_never_nl(options_randomizer & 16);
+  options.set_dot_nl(options_randomizer & 32);
+  options.set_never_capture(options_randomizer & 64);
+  options.set_case_sensitive(options_randomizer & 128);
+  options.set_perl_classes(options_randomizer & 256);
+  options.set_word_boundary(options_randomizer & 512);
+  options.set_one_line(options_randomizer & 1024);
+
+  options.set_log_errors(false);
+
+  const char* data_input = reinterpret_cast<const char*>(data);
+  {
+    string pattern(data_input, size);
+    string buffer(data_input, size);
+    Test(buffer, pattern, options);
+  }
+
+  if (size >= 3) {
+    string pattern(data_input, size / 3);
+    string buffer(data_input + size / 3, size - size / 3);
+    Test(buffer, pattern, options);
+  }
+
+  return 0;
+}