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1 | /* ==================================================================== |
2 | * Copyright (c) 2015 The OpenSSL Project. All rights reserved. | |
3 | * | |
4 | * Redistribution and use in source and binary forms, with or without | |
5 | * modification, are permitted provided that the following conditions | |
6 | * are met: | |
7 | * | |
8 | * 1. Redistributions of source code must retain the above copyright | |
9 | * notice, this list of conditions and the following disclaimer. | |
10 | * | |
11 | * 2. Redistributions in binary form must reproduce the above copyright | |
12 | * notice, this list of conditions and the following disclaimer in | |
13 | * the documentation and/or other materials provided with the | |
14 | * distribution. | |
15 | * | |
16 | * 3. All advertising materials mentioning features or use of this | |
17 | * software must display the following acknowledgment: | |
18 | * "This product includes software developed by the OpenSSL Project | |
19 | * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" | |
20 | * | |
21 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | |
22 | * endorse or promote products derived from this software without | |
23 | * prior written permission. For written permission, please contact | |
24 | * openssl-core@openssl.org. | |
25 | * | |
26 | * 5. Products derived from this software may not be called "OpenSSL" | |
27 | * nor may "OpenSSL" appear in their names without prior written | |
28 | * permission of the OpenSSL Project. | |
29 | * | |
30 | * 6. Redistributions of any form whatsoever must retain the following | |
31 | * acknowledgment: | |
32 | * "This product includes software developed by the OpenSSL Project | |
33 | * for use in the OpenSSL Toolkit (http://www.openssl.org/)" | |
34 | * | |
35 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | |
36 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
37 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
38 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | |
39 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
40 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
41 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
42 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
43 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
44 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
45 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
46 | * OF THE POSSIBILITY OF SUCH DAMAGE. | |
47 | * ==================================================================== | |
48 | * | |
49 | * This product includes cryptographic software written by Eric Young | |
50 | * (eay@cryptsoft.com). This product includes software written by Tim | |
51 | * Hudson (tjh@cryptsoft.com). | |
52 | * | |
53 | */ | |
54 | #include <stdio.h> | |
55 | #include <assert.h> | |
56 | #include <string.h> | |
57 | #include <stdlib.h> | |
58 | #include <openssl/crypto.h> | |
59 | ||
60 | static long sargl; | |
61 | static void *sargp; | |
62 | static int sidx; | |
63 | ||
64 | static void exnew(void *parent, void *ptr, CRYPTO_EX_DATA *ad, | |
65 | int idx, long argl, void *argp) | |
66 | { | |
67 | assert(idx == sidx); | |
68 | assert(argl == sargl); | |
69 | assert(argp == sargp); | |
70 | } | |
71 | ||
72 | static int exdup(CRYPTO_EX_DATA *to, CRYPTO_EX_DATA *from, | |
73 | void *from_d, int idx, long argl, void *argp) | |
74 | { | |
75 | assert(idx == sidx); | |
76 | assert(argl == sargl); | |
77 | assert(argp == sargp); | |
78 | return 0; | |
79 | } | |
80 | ||
81 | static void exfree(void *parent, void *ptr, CRYPTO_EX_DATA *ad, | |
82 | int idx, long argl, void *argp) | |
83 | { | |
84 | assert(idx == sidx); | |
85 | assert(argl == sargl); | |
86 | assert(argp == sargp); | |
87 | } | |
88 | ||
89 | typedef struct myobj_st { | |
90 | CRYPTO_EX_DATA ex_data; | |
91 | int id; | |
92 | } MYOBJ; | |
93 | ||
94 | static MYOBJ *MYOBJ_new() | |
95 | { | |
96 | static int count = 0; | |
97 | MYOBJ *obj = OPENSSL_malloc(sizeof(*obj)); | |
98 | int st; | |
99 | ||
100 | obj->id = ++count; | |
101 | st = CRYPTO_new_ex_data(CRYPTO_EX_INDEX_APP, obj, &obj->ex_data); | |
102 | assert(st != 0); | |
103 | return obj; | |
104 | } | |
105 | ||
106 | static void MYOBJ_sethello(MYOBJ *obj, char *cp) | |
107 | { | |
108 | int st; | |
109 | ||
110 | st = CRYPTO_set_ex_data(&obj->ex_data, sidx, cp); | |
111 | assert(st != 0); | |
112 | } | |
113 | ||
114 | static char *MYOBJ_gethello(MYOBJ *obj) | |
115 | { | |
116 | return CRYPTO_get_ex_data(&obj->ex_data, sidx); | |
117 | } | |
118 | ||
119 | static void MYOBJ_free(MYOBJ *obj) | |
120 | { | |
121 | CRYPTO_free_ex_data(CRYPTO_EX_INDEX_APP, obj, &obj->ex_data); | |
122 | OPENSSL_free(obj); | |
123 | } | |
124 | ||
125 | int main() | |
126 | { | |
127 | MYOBJ *t1, *t2; | |
128 | const char *cp; | |
129 | char *p; | |
130 | ||
131 | p = strdup("hello world"); | |
132 | sargl = 21; | |
133 | sargp = malloc(1); | |
134 | sidx = CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_APP, sargl, sargp, | |
135 | exnew, exdup, exfree); | |
136 | t1 = MYOBJ_new(); | |
137 | t2 = MYOBJ_new(); | |
138 | MYOBJ_sethello(t1, p); | |
139 | cp = MYOBJ_gethello(t1); | |
140 | assert(cp == p); | |
141 | cp = MYOBJ_gethello(t2); | |
142 | assert(cp == NULL); | |
143 | MYOBJ_free(t1); | |
144 | MYOBJ_free(t2); | |
145 | free(sargp); | |
146 | free(p); | |
147 | return 0; | |
148 | } |