1 files changed, 25 insertions, 0 deletions
diff --git a/fuzz/parse_certificate_fuzzer.cc b/fuzz/parse_certificate_fuzzer.cc
new file mode 100644
index 0000000..9e976f6
--- /dev/null
+++ b/fuzz/parse_certificate_fuzzer.cc
@@ -0,0 +1,25 @@
+// Copyright 2016 The Chromium Authors
+// 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 "../pki/cert_errors.h"
+#include "../pki/parsed_certificate.h"
+#include <openssl/pool.h>
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
+  bssl::CertErrors errors;
+  std::shared_ptr<const bssl::ParsedCertificate> cert =
+      bssl::ParsedCertificate::Create(
+          bssl::UniquePtr<CRYPTO_BUFFER>(
+              CRYPTO_BUFFER_new(data, size, nullptr)),
+          {}, &errors);
+
+  // Severe errors must be provided iff the parsing failed.
+  CHECK_EQ(errors.ContainsAnyErrorWithSeverity(bssl::CertError::SEVERITY_HIGH),
+           cert == nullptr);
+
+  return 0;
+}