Imported Upstream version 4.8.0.309

Former-commit-id: 5f9c6ae75f295e057a7d2971f3a6df4656fa8850

external/boringssl/fuzz/pkcs8.cc

@@ -0,0 +1,38 @@
+/* Copyright (c) 2016, Google Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
+
+#include <openssl/bytestring.h>
+#include <openssl/evp.h>
+#include <openssl/mem.h>
+
+extern "C" int LLVMFuzzerTestOneInput(uint8_t *buf, size_t len) {
+  CBS cbs;
+  CBS_init(&cbs, buf, len);
+  EVP_PKEY *pkey = EVP_parse_private_key(&cbs);
+  if (pkey == NULL) {
+    return 0;
+  }
+
+  uint8_t *der;
+  size_t der_len;
+  CBB cbb;
+  if (CBB_init(&cbb, 0) &&
+      EVP_marshal_private_key(&cbb, pkey) &&
+      CBB_finish(&cbb, &der, &der_len)) {
+    OPENSSL_free(der);
+  }
+  CBB_cleanup(&cbb);
+  EVP_PKEY_free(pkey);
+  return 0;
+}