1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
|
/* $OpenBSD: asn1_string_to_utf8.c,v 1.2 2022/11/23 08:51:05 tb Exp $ */
/*
* Copyright (c) 2022 Theo Buehler <tb@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <err.h>
#include <string.h>
#include <openssl/asn1.h>
struct asn1_string_to_utf8_test_case {
const char *description;
const ASN1_ITEM *item;
const uint8_t der[32];
size_t der_len;
const uint8_t want[32];
int want_len;
};
static const struct asn1_string_to_utf8_test_case tests[] = {
{
.description = "hello",
.item = &ASN1_PRINTABLESTRING_it,
.der = {
0x13, 0x05, 0x68, 0x65, 0x6c, 0x6c, 0x6f,
},
.der_len = 7,
.want = {
0x68, 0x65, 0x6c, 0x6c, 0x6f,
},
.want_len = 5,
},
{
.description = "face with tears of joy",
.item = &ASN1_UTF8STRING_it,
.der = {
0x0c, 0x04, 0xF0, 0x9F, 0x98, 0x82,
},
.der_len = 6,
.want = {
0xF0, 0x9F, 0x98, 0x82,
},
.want_len = 4,
},
{
.description = "hi",
.item = &ASN1_IA5STRING_it,
.der = {
0x16, 0x02, 0x68, 0x69,
},
.der_len = 4,
.want = {
0x68, 0x69,
},
.want_len = 2,
},
};
const size_t N_TESTS = sizeof(tests) / sizeof(tests[0]);
static int
asn1_string_to_utf8_test(const struct asn1_string_to_utf8_test_case *test)
{
ASN1_STRING *str = NULL;
const unsigned char *der;
unsigned char *out = NULL;
int ret;
int failed = 1;
der = test->der;
if ((str = (ASN1_STRING *)ASN1_item_d2i(NULL, &der, test->der_len,
test->item)) == NULL) {
warnx("ASN1_item_d2i failed");
goto err;
}
if ((ret = ASN1_STRING_to_UTF8(&out, str)) < 0) {
warnx("ASN1_STRING_to_UTF8 failed: got %d, want %d", ret,
test->want_len);
goto err;
}
if (ret != test->want_len) {
warnx("ASN1_STRING_to_UTF8: got %d, want %d", ret,
test->want_len);
goto err;
}
if (memcmp(out, test->want, test->want_len) != 0) {
warnx("memcmp failed");
goto err;
}
failed = 0;
err:
ASN1_STRING_free(str);
free(out);
return failed;
}
static int
asn1_string_to_utf8_tests(void)
{
size_t i;
int failed = 0;
for (i = 0; i < N_TESTS; i++)
failed |= asn1_string_to_utf8_test(&tests[i]);
return failed;
}
int
main(void)
{
int failed = 0;
failed |= asn1_string_to_utf8_tests();
return failed;
}
|