1/*
2 * Copyright 2015-2018 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the OpenSSL license (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 <string.h>
11#include "testutil.h"
12#include "internal/numbers.h"
13
14static int test_sanity_null_zero(void)
15{
16    char *p;
17    char bytes[sizeof(p)];
18
19    /* Is NULL equivalent to all-bytes-zero? */
20    p = NULL;
21    memset(bytes, 0, sizeof(bytes));
22    return TEST_mem_eq(&p, sizeof(p), bytes, sizeof(bytes));
23}
24
25static int test_sanity_enum_size(void)
26{
27    enum smallchoices { sa, sb, sc };
28    enum medchoices { ma, mb, mc, md, me, mf, mg, mh, mi, mj, mk, ml };
29    enum largechoices {
30        a01, b01, c01, d01, e01, f01, g01, h01, i01, j01,
31        a02, b02, c02, d02, e02, f02, g02, h02, i02, j02,
32        a03, b03, c03, d03, e03, f03, g03, h03, i03, j03,
33        a04, b04, c04, d04, e04, f04, g04, h04, i04, j04,
34        a05, b05, c05, d05, e05, f05, g05, h05, i05, j05,
35        a06, b06, c06, d06, e06, f06, g06, h06, i06, j06,
36        a07, b07, c07, d07, e07, f07, g07, h07, i07, j07,
37        a08, b08, c08, d08, e08, f08, g08, h08, i08, j08,
38        a09, b09, c09, d09, e09, f09, g09, h09, i09, j09,
39        a10, b10, c10, d10, e10, f10, g10, h10, i10, j10,
40        xxx };
41
42    /* Enum size */
43    if (!TEST_size_t_eq(sizeof(enum smallchoices), sizeof(int))
44        || !TEST_size_t_eq(sizeof(enum medchoices), sizeof(int))
45        || !TEST_size_t_eq(sizeof(enum largechoices), sizeof(int)))
46        return 0;
47    return 1;
48}
49
50static int test_sanity_twos_complement(void)
51{
52    /* Basic two's complement checks. */
53    if (!TEST_int_eq(~(-1), 0)
54        || !TEST_long_eq(~(-1L), 0L))
55        return 0;
56    return 1;
57}
58
59static int test_sanity_sign(void)
60{
61    /* Check that values with sign bit 1 and value bits 0 are valid */
62    if (!TEST_int_eq(-(INT_MIN + 1), INT_MAX)
63        || !TEST_long_eq(-(LONG_MIN + 1), LONG_MAX))
64        return 0;
65    return 1;
66}
67
68static int test_sanity_unsigned_conversion(void)
69{
70    /* Check that unsigned-to-signed conversions preserve bit patterns */
71    if (!TEST_int_eq((int)((unsigned int)INT_MAX + 1), INT_MIN)
72        || !TEST_long_eq((long)((unsigned long)LONG_MAX + 1), LONG_MIN))
73        return 0;
74    return 1;
75}
76
77static int test_sanity_range(void)
78{
79    /* This isn't possible to check using the framework functions */
80    if (SIZE_MAX < INT_MAX) {
81        TEST_error("int must not be wider than size_t");
82        return 0;
83    }
84    return 1;
85}
86
87static int test_sanity_memcmp(void)
88{
89    return CRYPTO_memcmp("ab","cd",2);
90}
91
92int setup_tests(void)
93{
94    ADD_TEST(test_sanity_null_zero);
95    ADD_TEST(test_sanity_enum_size);
96    ADD_TEST(test_sanity_twos_complement);
97    ADD_TEST(test_sanity_sign);
98    ADD_TEST(test_sanity_unsigned_conversion);
99    ADD_TEST(test_sanity_range);
100    ADD_TEST(test_sanity_memcmp);
101    return 1;
102}
103
104