1 /*
2 * Copyright 2016-2024 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 <openssl/crypto.h>
11 #include <internal/nelem.h>
12 #include "testutil.h"
13
14 struct strtoul_test_entry {
15 char *input; /* the input string */
16 int base; /* the base we are converting in */
17 unsigned long expect_val; /* the expected value we should get */
18 int expect_err; /* the expected error we expect to receive */
19 size_t expect_endptr_offset; /* the expected endptr offset, +1 for NULL */
20 };
21
22 static struct strtoul_test_entry strtoul_tests[] = {
23 /* pass on conv "0" to 0 */
24 {
25 "0", 0, 0, 1, 1 },
26 /* pass on conv "12345" to 12345 */
27 {
28 "12345", 0, 12345, 1, 5 },
29 /* pass on conv "0x12345" to 0x12345, base 16 */
30 {
31 "0x12345", 0, 0x12345, 1, 7 },
32 /* pass on base 10 translation, endptr points to 'x' */
33 {
34 "0x12345", 10, 0, 1, 1 },
35 #if ULONG_MAX == 4294967295
36 /* pass on ULONG_MAX translation */
37 {
38 "4294967295", 0, ULONG_MAX, 1, 10 },
39 #else
40 { "18446744073709551615", 0, ULONG_MAX, 1, 20 },
41 #endif
42
43 /* fail on negative input */
44 {
45 "-1", 0, 0, 0, 0 },
46 /* fail on non-numerical input */
47 {
48 "abcd", 0, 0, 0, 0 },
49 /* pass on decimal input */
50 {
51 "1.0", 0, 1, 1, 1 },
52 /* Fail on decimal input without leading number */
53 {
54 ".1", 0, 0, 0, 0 }
55 };
56
test_strtoul(int idx)57 static int test_strtoul(int idx)
58 {
59 unsigned long val;
60 char *endptr = NULL;
61 int err;
62 struct strtoul_test_entry *test = &strtoul_tests[idx];
63
64 /*
65 * For each test, convert the string to an unsigned long
66 */
67 err = OPENSSL_strtoul(test->input, &endptr, test->base, &val);
68
69 /*
70 * Check to ensure the error returned is expected
71 */
72 if (!TEST_int_eq(err, test->expect_err))
73 return 0;
74 /*
75 * Confirm that the endptr points to where we expect
76 */
77 if (!TEST_ptr_eq(endptr, &test->input[test->expect_endptr_offset]))
78 return 0;
79 /*
80 * And check that we received the proper translated value
81 * Note, we only check the value if the conversion passed
82 */
83 if (test->expect_err == 1) {
84 if (!TEST_ulong_eq(val, test->expect_val))
85 return 0;
86 }
87 return 1;
88 }
89
setup_tests(void)90 int setup_tests(void)
91 {
92 ADD_ALL_TESTS(test_strtoul, OSSL_NELEM(strtoul_tests));
93 return 1;
94 }
95