1 /* $OpenBSD: asn1string_copy.c,v 1.1 2021/11/13 20:50:14 schwarze Exp $ */
2 /*
3 * Copyright (c) 2021 Ingo Schwarze <schwarze@openbsd.org>
4 *
5 * Permission to use, copy, modify, and distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 */
17
18 #include <err.h>
19 #include <string.h>
20
21 #include <openssl/asn1.h>
22
23 int
main(void)24 main(void)
25 {
26 const unsigned char *data = "hello world";
27 const unsigned char *str;
28 ASN1_STRING *src, *dst;
29 int irc;
30
31 /* Set up the source string. */
32
33 if ((src = ASN1_IA5STRING_new()) == NULL)
34 err(1, "FAIL: ASN1_IA5STRING_new() returned NULL");
35 if (ASN1_STRING_set(src, data, -1) == 0)
36 err(1, "FAIL: ASN1_STRING_set(src) failed");
37 if ((str = ASN1_STRING_get0_data(src)) == NULL)
38 errx(1, "FAIL: 1st ASN1_STRING_get0_data(src) returned NULL");
39 if (strcmp(str, data))
40 errx(1, "FAIL: 1st ASN1_STRING_get0_data(src) "
41 "returned wrong data: \"%s\" (expected \"%s\")",
42 str, data);
43 if ((irc = ASN1_STRING_length(src)) != (int)strlen(data))
44 errx(1, "FAIL: 1st ASN1_STRING_length(src) "
45 "returned a wrong length: %d (expected %zu)",
46 irc, strlen(data));
47 if ((irc = ASN1_STRING_type(src)) != V_ASN1_IA5STRING)
48 errx(1, "FAIL: 1st ASN1_STRING_type(src) "
49 "returned a wrong type: %d (expected %d)",
50 irc, V_ASN1_IA5STRING);
51
52 /* Set up the destination string. */
53
54 if ((dst = ASN1_STRING_new()) == NULL)
55 err(1, "FAIL: ASN1_STRING_new() returned NULL");
56 if ((str = ASN1_STRING_get0_data(dst)) != NULL)
57 errx(1, "FAIL: 1st ASN1_STRING_get0_data(dst) "
58 "returned \"%s\" (expected NULL)", str);
59 if ((irc = ASN1_STRING_length(dst)) != 0)
60 errx(1, "FAIL: 1st ASN1_STRING_length(dst) "
61 "returned a wrong length: %d (expected 0)", irc);
62 if ((irc = ASN1_STRING_type(dst)) != V_ASN1_OCTET_STRING)
63 errx(1, "FAIL: 1st ASN1_STRING_type(dst) "
64 "returned a wrong type: %d (expected %d)",
65 irc, V_ASN1_OCTET_STRING);
66 ASN1_STRING_length_set(dst, -1);
67 if ((str = ASN1_STRING_get0_data(dst)) != NULL)
68 errx(1, "FAIL: 2nd ASN1_STRING_get0_data(dst) "
69 "returned \"%s\" (expected NULL)", str);
70 if ((irc = ASN1_STRING_length(dst)) != -1)
71 errx(1, "FAIL: 2nd ASN1_STRING_length(dst) "
72 "returned a wrong length: %d (expected -1)", irc);
73 if ((irc = ASN1_STRING_type(dst)) != V_ASN1_OCTET_STRING)
74 errx(1, "FAIL: 2nd ASN1_STRING_type(dst) "
75 "returned a wrong type: %d (expected %d)",
76 irc, V_ASN1_OCTET_STRING);
77
78 /* Attempt to copy in the wrong direction. */
79
80 if (ASN1_STRING_copy(src, dst) != 0)
81 errx(1, "FAIL: ASN1_STRING_copy unexpectedly succeeded");
82 if ((str = ASN1_STRING_get0_data(src)) == NULL)
83 errx(1, "FAIL: 2nd ASN1_STRING_get0_data(src) returned NULL");
84 if (strcmp(str, data))
85 errx(1, "FAIL: 2nd ASN1_STRING_get0_data(src) "
86 "returned wrong data: \"%s\" (expected \"%s\")",
87 str, data);
88 if ((irc = ASN1_STRING_length(src)) != (int)strlen(data))
89 errx(1, "FAIL: 2nd ASN1_STRING_length(src) "
90 "returned a wrong length: %d (expected %zu)",
91 irc, strlen(data));
92 if ((irc = ASN1_STRING_type(src)) != V_ASN1_IA5STRING)
93 errx(1, "FAIL: 2nd ASN1_STRING_type(src) "
94 "returned a wrong type: %d (expected %d)",
95 irc, V_ASN1_IA5STRING);
96
97 /* Copy in the right direction. */
98
99 if (ASN1_STRING_copy(dst, src) != 1)
100 err(1, "FAIL: ASN1_STRING_copy unexpectedly failed");
101 if ((str = ASN1_STRING_get0_data(dst)) == NULL)
102 errx(1, "FAIL: 3rd ASN1_STRING_get0_data(dst) returned NULL");
103 if (strcmp(str, data))
104 errx(1, "FAIL: 3rd ASN1_STRING_get0_data(dst) "
105 "returned wrong data: \"%s\" (expected \"%s\")",
106 str, data);
107 if ((irc = ASN1_STRING_length(dst)) != (int)strlen(data))
108 errx(1, "FAIL: 3rd ASN1_STRING_length(dst) "
109 "returned a wrong length: %d (expected %zu)",
110 irc, strlen(data));
111 if ((irc = ASN1_STRING_type(dst)) != V_ASN1_IA5STRING)
112 errx(1, "FAIL: 3rd ASN1_STRING_type(dst) "
113 "returned a wrong type: %d (expected %d)",
114 irc, V_ASN1_IA5STRING);
115
116 ASN1_STRING_free(src);
117 ASN1_STRING_free(dst);
118 return 0;
119 }
120