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 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 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 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 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 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 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 } 127 128 static int test_sanity_memcmp(void) 129 { 130 return CRYPTO_memcmp("ab", "cd", 2); 131 } 132 133 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 } 151 152 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