xref: /openssl/test/nodefltctxtest.c (revision 0aa7d7f4)
1 /*
2  * Copyright 2023 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 <openssl/evp.h>
11 #include "testutil.h"
12 
13 /*
14  * Test that the default libctx does not get initialised when using a custom
15  * libctx. We assume that this test application has been executed such that the
16  * null provider is loaded via the config file.
17  */
test_no_deflt_ctx_init(void)18 static int test_no_deflt_ctx_init(void)
19 {
20     int testresult = 0;
21     EVP_MD *md = NULL;
22     OSSL_LIB_CTX *ctx = OSSL_LIB_CTX_new();
23 
24     if (!TEST_ptr(ctx))
25         return 0;
26 
27     md = EVP_MD_fetch(ctx, "SHA2-256", NULL);
28     if (!TEST_ptr(md))
29         goto err;
30 
31     /*
32      * Since we're using a non-default libctx above, the default libctx should
33      * not have been initialised via config file, and so it is not too late to
34      * use OPENSSL_INIT_NO_LOAD_CONFIG.
35      */
36     OPENSSL_init_crypto(OPENSSL_INIT_NO_LOAD_CONFIG, NULL);
37 
38     /*
39      * If the config file was incorrectly loaded then the null provider will
40      * have been initialised and the default provider loading will have been
41      * blocked. If the config file was NOT loaded (as we expect) then the
42      * default provider should be available.
43      */
44     if (!TEST_true(OSSL_PROVIDER_available(NULL, "default")))
45         goto err;
46     if (!TEST_false(OSSL_PROVIDER_available(NULL, "null")))
47         goto err;
48 
49     testresult = 1;
50  err:
51     EVP_MD_free(md);
52     OSSL_LIB_CTX_free(ctx);
53     return testresult;
54 }
55 
setup_tests(void)56 int setup_tests(void)
57 {
58     ADD_TEST(test_no_deflt_ctx_init);
59     return 1;
60 }
61