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dso_null.c
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1 /* dso_null.c */
2 /* Written by Geoff Thorpe ([email protected]) for the OpenSSL
3  * project 2000.
4  */
5 /* ====================================================================
6  * Copyright (c) 2000 The OpenSSL Project. All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  *
12  * 1. Redistributions of source code must retain the above copyright
13  * notice, this list of conditions and the following disclaimer.
14  *
15  * 2. Redistributions in binary form must reproduce the above copyright
16  * notice, this list of conditions and the following disclaimer in
17  * the documentation and/or other materials provided with the
18  * distribution.
19  *
20  * 3. All advertising materials mentioning features or use of this
21  * software must display the following acknowledgment:
22  * "This product includes software developed by the OpenSSL Project
23  * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
24  *
25  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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27  * prior written permission. For written permission, please contact
29  *
30  * 5. Products derived from this software may not be called "OpenSSL"
31  * nor may "OpenSSL" appear in their names without prior written
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35  * acknowledgment:
36  * "This product includes software developed by the OpenSSL Project
37  * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38  *
39  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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51  * ====================================================================
52  *
53  * This product includes cryptographic software written by Eric Young
54  * ([email protected]). This product includes software written by Tim
55  * Hudson ([email protected]).
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57  */
58 
59 /* This "NULL" method is provided as the fallback for systems that have
60  * no appropriate support for "shared-libraries". */
61 
62 #include <stdio.h>
63 #include "cryptlib.h"
64 #include <openssl/dso.h>
65 
66 static DSO_METHOD dso_meth_null = {
67  "NULL shared library method",
68  NULL, /* load */
69  NULL, /* unload */
70  NULL, /* bind_var */
71  NULL, /* bind_func */
72 /* For now, "unbind" doesn't exist */
73 #if 0
74  NULL, /* unbind_var */
75  NULL, /* unbind_func */
76 #endif
77  NULL, /* ctrl */
78  NULL, /* dso_name_converter */
79  NULL, /* dso_merger */
80  NULL, /* init */
81  NULL, /* finish */
82  NULL, /* pathbyaddr */
83  NULL /* globallookup */
84  };
85 
87  {
88  return(&dso_meth_null);
89  }
90