2 /* Written by Geoff Thorpe (geoff@geoffthorpe.net) for the OpenSSL
5 /* ====================================================================
6 * Copyright (c) 2000 The OpenSSL Project. All rights reserved.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
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
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/)"
25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26 * endorse or promote products derived from this software without
27 * prior written permission. For written permission, please contact
28 * licensing@OpenSSL.org.
30 * 5. Products derived from this software may not be called "OpenSSL"
31 * nor may "OpenSSL" appear in their names without prior written
32 * permission of the OpenSSL Project.
34 * 6. Redistributions of any form whatsoever must retain the following
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50 * OF THE POSSIBILITY OF SUCH DAMAGE.
51 * ====================================================================
53 * This product includes cryptographic software written by Eric Young
54 * (eay@cryptsoft.com). This product includes software written by Tim
55 * Hudson (tjh@cryptsoft.com).
62 #include <openssl/dso.h>
65 DSO_METHOD
*DSO_METHOD_win32(void)
71 /* Part of the hack in "win32_load" ... */
72 #define DSO_MAX_TRANSLATED_SIZE 256
74 static int win32_load(DSO
*dso
, const char *filename
);
75 static int win32_unload(DSO
*dso
);
76 static int win32_bind(DSO
*dso
, const char *symname
, void **symptr
);
78 static int win32_unbind(DSO
*dso
, char *symname
, void *symptr
);
79 static int win32_init(DSO
*dso
);
80 static int win32_finish(DSO
*dso
);
82 static long win32_ctrl(DSO
*dso
, int cmd
, long larg
, void *parg
);
84 static DSO_METHOD dso_meth_win32
= {
85 "OpenSSL 'win32' shared library method",
89 /* For now, "unbind" doesn't exist */
98 DSO_METHOD
*DSO_METHOD_win32(void)
100 return(&dso_meth_win32
);
103 /* For this DSO_METHOD, our meth_data STACK will contain;
104 * (i) a pointer to the handle (HINSTANCE) returned from
105 * LoadLibrary(), and copied.
108 static int win32_load(DSO
*dso
, const char *filename
)
111 char translated
[DSO_MAX_TRANSLATED_SIZE
];
114 /* NB: This is a hideous hack, but I'm not yet sure what
115 * to replace it with. This attempts to convert any filename,
116 * that looks like it has no path information, into a
117 * translated form, e. "blah" -> "blah.dll" ... I'm more
118 * comfortable putting hacks into win32 code though ;-) */
119 len
= strlen(filename
);
120 if((dso
->flags
& DSO_FLAG_NAME_TRANSLATION
) &&
121 (len
+ 4 < DSO_MAX_TRANSLATED_SIZE
) &&
122 (strstr(filename
, "/") == NULL
) &&
123 (strstr(filename
, "\\") == NULL
) &&
124 (strstr(filename
, ":") == NULL
))
126 sprintf(translated
, "%s.dll", filename
);
127 h
= LoadLibrary(translated
);
130 h
= LoadLibrary(filename
);
133 DSOerr(DSO_F_WIN32_LOAD
,DSO_R_LOAD_FAILED
);
136 p
= (HINSTANCE
*)Malloc(sizeof(HINSTANCE
));
139 DSOerr(DSO_F_WIN32_LOAD
,ERR_R_MALLOC_FAILURE
);
144 if(!sk_push(dso
->meth_data
, (char *)p
))
146 DSOerr(DSO_F_WIN32_LOAD
,DSO_R_STACK_ERROR
);
154 static int win32_unload(DSO
*dso
)
159 DSOerr(DSO_F_WIN32_UNLOAD
,ERR_R_PASSED_NULL_PARAMETER
);
162 if(sk_num(dso
->meth_data
) < 1)
164 p
= (HINSTANCE
*)sk_pop(dso
->meth_data
);
167 DSOerr(DSO_F_WIN32_UNLOAD
,DSO_R_NULL_HANDLE
);
172 DSOerr(DSO_F_WIN32_UNLOAD
,DSO_R_UNLOAD_FAILED
);
173 /* We should push the value back onto the stack in
174 * case of a retry. */
175 sk_push(dso
->meth_data
, (char *)p
);
183 static int win32_bind(DSO
*dso
, const char *symname
, void **symptr
)
188 if((dso
== NULL
) || (symptr
== NULL
) || (symname
== NULL
))
190 DSOerr(DSO_F_WIN32_BIND
,ERR_R_PASSED_NULL_PARAMETER
);
193 if(sk_num(dso
->meth_data
) < 1)
195 DSOerr(DSO_F_WIN32_BIND
,DSO_R_STACK_ERROR
);
198 ptr
= (HINSTANCE
*)sk_value(dso
->meth_data
, sk_num(dso
->meth_data
) - 1);
201 DSOerr(DSO_F_WIN32_BIND
,DSO_R_NULL_HANDLE
);
204 sym
= GetProcAddress(*ptr
, symname
);
207 DSOerr(DSO_F_WIN32_BIND
,DSO_R_SYM_FAILURE
);
214 static long win32_ctrl(DSO
*dso
, int cmd
, long larg
, void *parg
)
218 DSOerr(DSO_F_WIN32_CTRL
,ERR_R_PASSED_NULL_PARAMETER
);
223 case DSO_CTRL_GET_FLAGS
:
225 case DSO_CTRL_SET_FLAGS
:
226 dso
->flags
= (int)larg
;
228 case DSO_CTRL_OR_FLAGS
:
229 dso
->flags
|= (int)larg
;
234 DSOerr(DSO_F_WIN32_CTRL
,DSO_R_UNKNOWN_COMMAND
);