1 | /* |
2 | * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. |
3 | * |
4 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
5 | * this file except in compliance with the License. You can obtain a copy |
6 | * in the file LICENSE in the source distribution or at |
7 | * https://www.openssl.org/source/license.html |
8 | */ |
9 | |
10 | #include <stdio.h> |
11 | #include "internal/cryptlib.h" |
12 | #include <openssl/evp.h> |
13 | #include <openssl/objects.h> |
14 | #include <openssl/x509.h> |
15 | #include "crypto/evp.h" |
16 | |
17 | static int init(EVP_MD_CTX *ctx) |
18 | { |
19 | return 1; |
20 | } |
21 | |
22 | static int update(EVP_MD_CTX *ctx, const void *data, size_t count) |
23 | { |
24 | return 1; |
25 | } |
26 | |
27 | static int final(EVP_MD_CTX *ctx, unsigned char *md) |
28 | { |
29 | return 1; |
30 | } |
31 | |
32 | static const EVP_MD null_md = { |
33 | NID_undef, |
34 | NID_undef, |
35 | 0, |
36 | 0, |
37 | init, |
38 | update, |
39 | final, |
40 | NULL, |
41 | NULL, |
42 | 0, |
43 | sizeof(EVP_MD *), |
44 | }; |
45 | |
46 | const EVP_MD *EVP_md_null(void) |
47 | { |
48 | return &null_md; |
49 | } |
50 | |