1 /*
2 * Copyright 2015-2022 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 <string.h>
11 #include <openssl/types.h>
12 #include "testutil.h"
13 #include "internal/numbers.h"
14
test_sanity_null_zero(void)15 static int test_sanity_null_zero(void)
16 {
17 char *p;
18 char bytes[sizeof(p)];
19
20 /* Is NULL equivalent to all-bytes-zero? */
21 p = NULL;
22 memset(bytes, 0, sizeof(bytes));
23 return TEST_mem_eq(&p, sizeof(p), bytes, sizeof(bytes));
24 }
25
test_sanity_enum_size(void)26 static int test_sanity_enum_size(void)
27 {
28 enum smallchoices { sa, sb, sc };
29 enum medchoices { ma, mb, mc, md, me, mf, mg, mh, mi, mj, mk, ml };
30 enum largechoices {
31 a01, b01, c01, d01, e01, f01, g01, h01, i01, j01,
32 a02, b02, c02, d02, e02, f02, g02, h02, i02, j02,
33 a03, b03, c03, d03, e03, f03, g03, h03, i03, j03,
34 a04, b04, c04, d04, e04, f04, g04, h04, i04, j04,
35 a05, b05, c05, d05, e05, f05, g05, h05, i05, j05,
36 a06, b06, c06, d06, e06, f06, g06, h06, i06, j06,
37 a07, b07, c07, d07, e07, f07, g07, h07, i07, j07,
38 a08, b08, c08, d08, e08, f08, g08, h08, i08, j08,
39 a09, b09, c09, d09, e09, f09, g09, h09, i09, j09,
40 a10, b10, c10, d10, e10, f10, g10, h10, i10, j10,
41 xxx };
42
43 /* Enum size */
44 if (!TEST_size_t_eq(sizeof(enum smallchoices), sizeof(int))
45 || !TEST_size_t_eq(sizeof(enum medchoices), sizeof(int))
46 || !TEST_size_t_eq(sizeof(enum largechoices), sizeof(int)))
47 return 0;
48 return 1;
49 }
50
test_sanity_twos_complement(void)51 static int test_sanity_twos_complement(void)
52 {
53 /* Basic two's complement checks. */
54 if (!TEST_int_eq(~(-1), 0)
55 || !TEST_long_eq(~(-1L), 0L))
56 return 0;
57 return 1;
58 }
59
test_sanity_sign(void)60 static int test_sanity_sign(void)
61 {
62 /* Check that values with sign bit 1 and value bits 0 are valid */
63 if (!TEST_int_eq(-(INT_MIN + 1), INT_MAX)
64 || !TEST_long_eq(-(LONG_MIN + 1), LONG_MAX))
65 return 0;
66 return 1;
67 }
68
test_sanity_unsigned_conversion(void)69 static int test_sanity_unsigned_conversion(void)
70 {
71 /* Check that unsigned-to-signed conversions preserve bit patterns */
72 if (!TEST_int_eq((int)((unsigned int)INT_MAX + 1), INT_MIN)
73 || !TEST_long_eq((long)((unsigned long)LONG_MAX + 1), LONG_MIN))
74 return 0;
75 return 1;
76 }
77
test_sanity_range(void)78 static int test_sanity_range(void)
79 {
80 /* Verify some types are the correct size */
81 if (!TEST_size_t_eq(sizeof(int8_t), 1)
82 || !TEST_size_t_eq(sizeof(uint8_t), 1)
83 || !TEST_size_t_eq(sizeof(int16_t), 2)
84 || !TEST_size_t_eq(sizeof(uint16_t), 2)
85 || !TEST_size_t_eq(sizeof(int32_t), 4)
86 || !TEST_size_t_eq(sizeof(uint32_t), 4)
87 || !TEST_size_t_eq(sizeof(int64_t), 8)
88 || !TEST_size_t_eq(sizeof(uint64_t), 8)
89 #ifdef UINT128_MAX
90 || !TEST_size_t_eq(sizeof(int128_t), 16)
91 || !TEST_size_t_eq(sizeof(uint128_t), 16)
92 #endif
93 || !TEST_size_t_eq(sizeof(char), 1)
94 || !TEST_size_t_eq(sizeof(unsigned char), 1))
95 return 0;
96
97 /* We want our long longs to be at least 64 bits */
98 if (!TEST_size_t_ge(sizeof(long long int), 8)
99 || !TEST_size_t_ge(sizeof(unsigned long long int), 8))
100 return 0;
101
102 /*
103 * Verify intmax_t.
104 * Some platforms defined intmax_t to be 64 bits but still support
105 * an int128_t, so this check is for at least 64 bits.
106 */
107 if (!TEST_size_t_ge(sizeof(ossl_intmax_t), 8)
108 || !TEST_size_t_ge(sizeof(ossl_uintmax_t), 8)
109 || !TEST_size_t_ge(sizeof(ossl_uintmax_t), sizeof(size_t)))
110 return 0;
111
112 /* This isn't possible to check using the framework functions */
113 if (SIZE_MAX < INT_MAX) {
114 TEST_error("int must not be wider than size_t");
115 return 0;
116 }
117
118 /* SIZE_MAX is always greater than 2*INT_MAX */
119 if (SIZE_MAX - INT_MAX <= INT_MAX) {
120 TEST_error("SIZE_MAX must exceed 2*INT_MAX");
121 return 0;
122 }
123
124 return 1;
125 }
126
test_sanity_memcmp(void)127 static int test_sanity_memcmp(void)
128 {
129 return CRYPTO_memcmp("ab", "cd", 2);
130 }
131
setup_tests(void)132 int setup_tests(void)
133 {
134 ADD_TEST(test_sanity_null_zero);
135 ADD_TEST(test_sanity_enum_size);
136 ADD_TEST(test_sanity_twos_complement);
137 ADD_TEST(test_sanity_sign);
138 ADD_TEST(test_sanity_unsigned_conversion);
139 ADD_TEST(test_sanity_range);
140 ADD_TEST(test_sanity_memcmp);
141 return 1;
142 }
143
144