1 files changed, 51 insertions, 0 deletions
diff --git a/fuzz/gnutls_x509_crq_parser_fuzzer.c b/fuzz/gnutls_x509_crq_parser_fuzzer.c
new file mode 100644
index 0000000..4f7ebee
--- /dev/null
+++ b/fuzz/gnutls_x509_crq_parser_fuzzer.c
@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2020 Dmitry Baryshkov
+ *
+ * This file is part of GnuTLS.
+ *
+ * The GnuTLS is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>
+ *
+ */
+
+#include <assert.h>
+#include <stdint.h>
+
+#include <gnutls/gnutls.h>
+#include <gnutls/x509.h>
+
+#include "fuzzer.h"
+
+int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
+{
+	gnutls_datum_t raw;
+	gnutls_datum_t out;
+	gnutls_x509_crq_t crq;
+	int ret;
+
+	raw.data = (unsigned char *)data;
+	raw.size = size;
+
+	ret = gnutls_x509_crq_init(&crq);
+	assert(ret >= 0);
+
+	ret = gnutls_x509_crq_import(crq, &raw, GNUTLS_X509_FMT_DER);
+	if (ret >= 0) {
+		ret = gnutls_x509_crq_print(crq, GNUTLS_CRT_PRINT_FULL, &out);
+		assert(ret >= 0);
+		gnutls_free(out.data);
+	}
+	gnutls_x509_crq_deinit(crq);
+
+	return 0;
+}