feat: add gmssl headers

include/gmssl/rand.h

@@ -0,0 +1,35 @@
+/*
+ *  Copyright 2014-2022 The GmSSL Project. All Rights Reserved.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the License); you may
+ *  not use this file except in compliance with the License.
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ */
+
+
+#ifndef GMSSL_RAND_H
+#define GMSSL_RAND_H
+
+#include <stdint.h>
+#include <stdlib.h>
+#include <gmssl/api.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+Rand Public API
+
+	rand_bytes
+
+*/
+
+_gmssl_export int rand_bytes(uint8_t *buf, size_t buflen);
+
+
+#ifdef __cplusplus
+}
+#endif
+#endif