1 /*
2 * Copyright 2015-2023 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 <string.h>
11 #include <openssl/types.h>
12 #include "testutil.h"
13 #include "internal/numbers.h"
14 #include "internal/time.h"
15
test_sanity_null_zero(void)16 static int test_sanity_null_zero(void)
17 {
18 char *p;
19 char bytes[sizeof(p)];
20
21 /* Is NULL equivalent to all-bytes-zero? */
22 p = NULL;
23 memset(bytes, 0, sizeof(bytes));
24 return TEST_mem_eq(&p, sizeof(p), bytes, sizeof(bytes));
25 }
26
test_sanity_enum_size(void)27 static int test_sanity_enum_size(void)
28 {
29 enum smallchoices { sa, sb, sc };
30 enum medchoices { ma, mb, mc, md, me, mf, mg, mh, mi, mj, mk, ml };
31 enum largechoices {
32 a01, b01, c01, d01, e01, f01, g01, h01, i01, j01,
33 a02, b02, c02, d02, e02, f02, g02, h02, i02, j02,
34 a03, b03, c03, d03, e03, f03, g03, h03, i03, j03,
35 a04, b04, c04, d04, e04, f04, g04, h04, i04, j04,
36 a05, b05, c05, d05, e05, f05, g05, h05, i05, j05,
37 a06, b06, c06, d06, e06, f06, g06, h06, i06, j06,
38 a07, b07, c07, d07, e07, f07, g07, h07, i07, j07,
39 a08, b08, c08, d08, e08, f08, g08, h08, i08, j08,
40 a09, b09, c09, d09, e09, f09, g09, h09, i09, j09,
41 a10, b10, c10, d10, e10, f10, g10, h10, i10, j10,
42 xxx };
43
44 /* Enum size */
45 if (!TEST_size_t_eq(sizeof(enum smallchoices), sizeof(int))
46 || !TEST_size_t_eq(sizeof(enum medchoices), sizeof(int))
47 || !TEST_size_t_eq(sizeof(enum largechoices), sizeof(int)))
48 return 0;
49 return 1;
50 }
51
test_sanity_twos_complement(void)52 static int test_sanity_twos_complement(void)
53 {
54 /* Basic two's complement checks. */
55 if (!TEST_int_eq(~(-1), 0)
56 || !TEST_long_eq(~(-1L), 0L))
57 return 0;
58 return 1;
59 }
60
test_sanity_sign(void)61 static int test_sanity_sign(void)
62 {
63 /* Check that values with sign bit 1 and value bits 0 are valid */
64 if (!TEST_int_eq(-(INT_MIN + 1), INT_MAX)
65 || !TEST_long_eq(-(LONG_MIN + 1), LONG_MAX))
66 return 0;
67 return 1;
68 }
69
test_sanity_unsigned_conversion(void)70 static int test_sanity_unsigned_conversion(void)
71 {
72 /* Check that unsigned-to-signed conversions preserve bit patterns */
73 if (!TEST_int_eq((int)((unsigned int)INT_MAX + 1), INT_MIN)
74 || !TEST_long_eq((long)((unsigned long)LONG_MAX + 1), LONG_MIN))
75 return 0;
76 return 1;
77 }
78
test_sanity_range(void)79 static int test_sanity_range(void)
80 {
81 /* Verify some types are the correct size */
82 if (!TEST_size_t_eq(sizeof(int8_t), 1)
83 || !TEST_size_t_eq(sizeof(uint8_t), 1)
84 || !TEST_size_t_eq(sizeof(int16_t), 2)
85 || !TEST_size_t_eq(sizeof(uint16_t), 2)
86 || !TEST_size_t_eq(sizeof(int32_t), 4)
87 || !TEST_size_t_eq(sizeof(uint32_t), 4)
88 || !TEST_size_t_eq(sizeof(int64_t), 8)
89 || !TEST_size_t_eq(sizeof(uint64_t), 8)
90 #ifdef UINT128_MAX
91 || !TEST_size_t_eq(sizeof(int128_t), 16)
92 || !TEST_size_t_eq(sizeof(uint128_t), 16)
93 #endif
94 || !TEST_size_t_eq(sizeof(char), 1)
95 || !TEST_size_t_eq(sizeof(unsigned char), 1))
96 return 0;
97
98 /* We want our long longs to be at least 64 bits */
99 if (!TEST_size_t_ge(sizeof(long long int), 8)
100 || !TEST_size_t_ge(sizeof(unsigned long long int), 8))
101 return 0;
102
103 /*
104 * Verify intmax_t.
105 * Some platforms defined intmax_t to be 64 bits but still support
106 * an int128_t, so this check is for at least 64 bits.
107 */
108 if (!TEST_size_t_ge(sizeof(ossl_intmax_t), 8)
109 || !TEST_size_t_ge(sizeof(ossl_uintmax_t), 8)
110 || !TEST_size_t_ge(sizeof(ossl_uintmax_t), sizeof(size_t)))
111 return 0;
112
113 /* This isn't possible to check using the framework functions */
114 if (SIZE_MAX < INT_MAX) {
115 TEST_error("int must not be wider than size_t");
116 return 0;
117 }
118
119 /* SIZE_MAX is always greater than 2*INT_MAX */
120 if (SIZE_MAX - INT_MAX <= INT_MAX) {
121 TEST_error("SIZE_MAX must exceed 2*INT_MAX");
122 return 0;
123 }
124
125 return 1;
126 }
127
test_sanity_memcmp(void)128 static int test_sanity_memcmp(void)
129 {
130 return CRYPTO_memcmp("ab", "cd", 2);
131 }
132
test_sanity_sleep(void)133 static int test_sanity_sleep(void)
134 {
135 OSSL_TIME start = ossl_time_now();
136 uint64_t seconds;
137
138 /*
139 * On any reasonable system this must sleep at least one second
140 * but not more than 20.
141 * Assuming there is no interruption.
142 */
143 OSSL_sleep(1000);
144
145 seconds = ossl_time2seconds(ossl_time_subtract(ossl_time_now(), start));
146
147 if (!TEST_uint64_t_ge(seconds, 1) || !TEST_uint64_t_le(seconds, 20))
148 return 0;
149 return 1;
150 }
151
setup_tests(void)152 int setup_tests(void)
153 {
154 ADD_TEST(test_sanity_null_zero);
155 ADD_TEST(test_sanity_enum_size);
156 ADD_TEST(test_sanity_twos_complement);
157 ADD_TEST(test_sanity_sign);
158 ADD_TEST(test_sanity_unsigned_conversion);
159 ADD_TEST(test_sanity_range);
160 ADD_TEST(test_sanity_memcmp);
161 ADD_TEST(test_sanity_sleep);
162 return 1;
163 }
164
