xref: /openssl/test/sanitytest.c (revision da1c088f)
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