1 files changed, 76 insertions, 0 deletions
diff --git a/fuzz/gnutls_client_fuzzer.c b/fuzz/gnutls_client_fuzzer.c
new file mode 100644
index 0000000..b68cdb6
--- /dev/null
+++ b/fuzz/gnutls_client_fuzzer.c
@@ -0,0 +1,76 @@
+/*
+# Copyright 2016 Google Inc.
+# Copyright 2017 Red Hat, 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
+#
+#      https://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 <fcntl.h>
+#include <stdint.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdbool.h>
+
+#include <gnutls/gnutls.h>
+#include "mem.h"
+#include "fuzzer.h"
+
+int LLVMFuzzerTestOneInput(const uint8_t * data, size_t size)
+{
+	int res;
+	gnutls_session_t session;
+	gnutls_certificate_credentials_t xcred;
+	struct mem_st memdata;
+
+	res = gnutls_init(&session, GNUTLS_CLIENT);
+	assert(res >= 0);
+
+	res = gnutls_certificate_allocate_credentials(&xcred);
+	assert(res >= 0);
+	res = gnutls_credentials_set(session, GNUTLS_CRD_CERTIFICATE, xcred);
+	assert(res >= 0);
+
+	/*res = gnutls_set_default_priority(session);*/
+	res = gnutls_priority_set_direct(session, "NORMAL:+SIGN-EDDSA-ED448:"VERS_STR, NULL);
+	assert(res >= 0);
+
+	memdata.data = data;
+	memdata.size = size;
+
+	gnutls_transport_set_push_function(session, mem_push);
+	gnutls_transport_set_pull_function(session, mem_pull);
+	gnutls_transport_set_pull_timeout_function(session, mem_pull_timeout);
+	gnutls_transport_set_ptr(session, &memdata);
+
+	do {
+		res = gnutls_handshake(session);
+	} while (res < 0 && gnutls_error_is_fatal(res) == 0);
+	if (res >= 0) {
+		while (true) {
+			char buf[16384];
+			res = gnutls_record_recv(session, buf, sizeof(buf));
+			if (res <= 0) {
+				break;
+			}
+		}
+	}
+
+	gnutls_deinit(session);
+	gnutls_certificate_free_credentials(xcred);
+	return 0;
+}