[In progress] Fuzzer for GNUTLS (#135)

* First cut at gnutls. Doesn't actually find coverage.

* link everything right

* pipes are not sockets

* send not write

* these are not used

* stick this here

* this doesn't exit

* remove jenkinsfile

* move to the right dir

* project file

* update for more recent conventions

* ugh, typo

* new lib

* docs take forever

* name it client fuzzer

* stick a cert store on there!

* add a timeout, ugh

* Shtudown the right side instead of using a timeout

* Use boringssl's test corpus

* simplify grabbing the tarballs

* statically link things. pthread is still dynamically linked because I was not able to make it work

* Added an x509 parser fuzzer

* update for the lastest convention

1 files changed, 47 insertions, 0 deletions

diff --git a/projects/gnutls/gnutls_x509_parser_fuzzer.cc b/projects/gnutls/gnutls_x509_parser_fuzzer.cc
new file mode 100644
index 00000000..28dc3397
--- /dev/null
+++ b/projects/gnutls/gnutls_x509_parser_fuzzer.cc
@@ -0,0 +1,47 @@
+/*
+# Copyright 2016 Google Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+################################################################################
+*/
+
+#include <assert.h>
+#include <stdint.h>
+
+#include <gnutls/gnutls.h>
+#include <gnutls/x509.h>
+
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
+    gnutls_datum_t raw;
+    gnutls_datum_t out;
+    gnutls_x509_crt_t crt;
+    int ret;
+
+    raw.data = (unsigned char *)data;
+    raw.size = size;
+
+    ret = gnutls_x509_crt_init(&crt);
+    assert(ret >= 0);
+
+    ret = gnutls_x509_crt_import(crt, &raw, GNUTLS_X509_FMT_DER);
+    if (ret >= 0) {
+        ret = gnutls_x509_crt_print(crt, GNUTLS_CRT_PRINT_FULL, &out);
+        assert(ret >= 0);
+        gnutls_free(out.data);
+    }
+
+    gnutls_x509_crt_deinit(crt);
+    return 0;
+}