zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/lib/libssl/openssl-1.1.1o/crypto/evp/m_null.c b/ap/lib/libssl/openssl-1.1.1o/crypto/evp/m_null.c
new file mode 100644
index 0000000..0847139
--- /dev/null
+++ b/ap/lib/libssl/openssl-1.1.1o/crypto/evp/m_null.c
@@ -0,0 +1,49 @@
+/*
+ * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#include <stdio.h>
+#include "internal/cryptlib.h"
+#include <openssl/evp.h>
+#include <openssl/objects.h>
+#include <openssl/x509.h>
+#include "crypto/evp.h"
+
+static int init(EVP_MD_CTX *ctx)
+{
+ return 1;
+}
+
+static int update(EVP_MD_CTX *ctx, const void *data, size_t count)
+{
+ return 1;
+}
+
+static int final(EVP_MD_CTX *ctx, unsigned char *md)
+{
+ return 1;
+}
+
+static const EVP_MD null_md = {
+ NID_undef,
+ NID_undef,
+ 0,
+ 0,
+ init,
+ update,
+ final,
+ NULL,
+ NULL,
+ 0,
+ sizeof(EVP_MD *),
+};
+
+const EVP_MD *EVP_md_null(void)
+{
+ return &null_md;
+}