Imported OpenSSL 1.1.1a

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 "internal/evp_int.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;
+}