xref: /openssl/test/bio_meth_test.c (revision d60b3750)
1 /*
2  * Copyright 2024 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/bio.h>
11 #include "testutil.h"
12 
test_bio_meth(void)13 static int test_bio_meth(void)
14 {
15     int i, ret = 0, id;
16     BIO_METHOD *meth1 = NULL, *meth2 = NULL, *meth3 = NULL;
17     BIO *membio = NULL, *bio1 = NULL, *bio2 = NULL, *bio3 = NULL;
18 
19     id = BIO_get_new_index();
20     if (!TEST_int_eq(id, BIO_TYPE_START + 1))
21         goto err;
22 
23     if (!TEST_ptr(meth1 = BIO_meth_new(id, "Method1"))
24         || !TEST_ptr(meth2 = BIO_meth_new(BIO_TYPE_NONE, "Method2"))
25         || !TEST_ptr(meth3 = BIO_meth_new(BIO_TYPE_NONE|BIO_TYPE_FILTER, "Method3"))
26         || !TEST_ptr(bio1 = BIO_new(meth1))
27         || !TEST_ptr(bio2 = BIO_new(meth2))
28         || !TEST_ptr(bio3 = BIO_new(meth3))
29         || !TEST_ptr(membio = BIO_new(BIO_s_mem())))
30         goto err;
31 
32     BIO_set_next(bio3, bio2);
33     BIO_set_next(bio2, bio1);
34     BIO_set_next(bio1, membio);
35 
36     /* Check that we get an error if we exhaust BIO_get_new_index() */
37     for (i = id + 1; i <= BIO_TYPE_MASK; ++i) {
38         if (!TEST_int_eq(BIO_get_new_index(), i))
39             goto err;
40     }
41     if (!TEST_int_eq(BIO_get_new_index(), -1))
42         goto err;
43 
44     /* test searching works */
45     if (!TEST_ptr_eq(BIO_find_type(bio3, BIO_TYPE_MEM), membio)
46         || !TEST_ptr_eq(BIO_find_type(bio3, id), bio1))
47         goto err;
48 
49     /* Check searching for BIO_TYPE_NONE returns NULL */
50     if (!TEST_ptr_null(BIO_find_type(bio3, BIO_TYPE_NONE)))
51         goto err;
52     /* Check searching for BIO_TYPE_NONE + BIO_TYPE_FILTER works */
53     if (!TEST_ptr_eq(BIO_find_type(bio3, BIO_TYPE_FILTER), bio3))
54         goto err;
55     ret = 1;
56 err:
57     BIO_free(membio);
58     BIO_free(bio3);
59     BIO_free(bio2);
60     BIO_free(bio1);
61     BIO_meth_free(meth3);
62     BIO_meth_free(meth2);
63     BIO_meth_free(meth1);
64     return ret;
65 }
66 
setup_tests(void)67 int setup_tests(void)
68 {
69     ADD_TEST(test_bio_meth);
70     return 1;
71 }
72