| /* |
| * Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved. |
| * |
| * Licensed under the Apache License 2.0 (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, |
| EVP_ORIG_GLOBAL, |
| init, |
| update, |
| final, |
| NULL, |
| NULL, |
| 0, |
| sizeof(EVP_MD *), |
| }; |
| |
| const EVP_MD *EVP_md_null(void) |
| { |
| return &null_md; |
| } |