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).
61 #include <openssl/dso.h>
64 DSO_METHOD *DSO_METHOD_win32(void)
70 /* Part of the hack in "win32_load" ... */
71 #define DSO_MAX_TRANSLATED_SIZE 256
73 static int win32_load(DSO *dso, const char *filename);
74 static int win32_unload(DSO *dso);
75 static int win32_bind(DSO *dso, const char *symname, void **symptr);
77 static int win32_unbind(DSO *dso, char *symname, void *symptr);
78 static int win32_init(DSO *dso);
79 static int win32_finish(DSO *dso);
81 static long win32_ctrl(DSO *dso, int cmd, long larg, void *parg);
83 static DSO_METHOD dso_meth_win32 = {
84 "OpenSSL 'win32' shared library method",
88 /* For now, "unbind" doesn't exist */
97 DSO_METHOD *DSO_METHOD_win32(void)
99 return(&dso_meth_win32);
102 /* For this DSO_METHOD, our meth_data STACK will contain;
103 * (i) a pointer to the handle (HINSTANCE) returned from
104 * LoadLibrary(), and copied.
107 static int win32_load(DSO *dso, const char *filename)
110 char translated[DSO_MAX_TRANSLATED_SIZE];
113 /* NB: This is a hideous hack, but I'm not yet sure what
114 * to replace it with. This attempts to convert any filename,
115 * that looks like it has no path information, into a
116 * translated form, e. "blah" -> "blah.dll" ... I'm more
117 * comfortable putting hacks into win32 code though ;-) */
118 len = strlen(filename);
119 if((dso->flags & DSO_FLAG_NAME_TRANSLATION) &&
120 (len + 4 < DSO_MAX_TRANSLATED_SIZE) &&
121 (strstr(filename, "/") == NULL)
122 (strstr(filename, "\\") == NULL)
123 (strstr(filename, ":") == NULL))
125 sprintf(translated, "%s.dll", filename);
126 h = LoadLibrary(translated);
129 h = LoadLibrary(filename);
132 DSOerr(DSO_F_WIN32_LOAD,DSO_R_LOAD_FAILED);
135 p = (HINSTANCE *)Malloc(sizeof(HINSTANCE));
138 DSOerr(DSO_F_WIN32_LOAD,ERR_R_MALLOC_FAILURE);
143 if(!sk_push(dso->meth_data, (char *)p))
145 DSOerr(DSO_F_WIN32_LOAD,DSO_R_STACK_ERROR);
153 static int win32_unload(DSO *dso)
158 DSOerr(DSO_F_WIN32_UNLOAD,ERR_R_PASSED_NULL_PARAMETER);
161 if(sk_num(dso->meth_data) < 1)
163 DSOerr(DSO_F_WIN32_UNLOAD,DSO_R_STACK_ERROR);
166 p = (HINSTANCE *)sk_pop(dso->meth_data);
169 DSOerr(DSO_F_WIN32_UNLOAD,DSO_R_NULL_HANDLE);
174 DSOerr(DSO_F_WIN32_UNLOAD,DSO_R_UNLOAD_FAILED);
175 /* We should push the value back onto the stack in
176 * case of a retry. */
177 sk_push(dso->meth_data, (char *)p);
185 static int win32_bind(DSO *dso, const char *symname, void **symptr)
190 if((dso == NULL) || (symptr == NULL) || (symname == NULL))
192 DSOerr(DSO_F_WIN32_BIND,ERR_R_PASSED_NULL_PARAMETER);
195 if(sk_num(dso->meth_data) < 1)
197 DSOerr(DSO_F_WIN32_BIND,DSO_R_STACK_ERROR);
200 ptr = (HINSTANCE *)sk_value(dso->meth_data, sk_num(dso->meth_data) - 1);
203 DSOerr(DSO_F_WIN32_BIND,DSO_R_NULL_HANDLE);
206 sym = GetProcAddress(*ptr, symname);
209 DSOerr(DSO_F_WIN32_BIND,DSO_R_SYM_FAILURE);
216 static int win32_ctrl(DSO *dso, int cmd, long larg, void *parg)
220 DSOerr(DSO_F_WIN32_CTRL,ERR_R_PASSED_NULL_PARAMETER);
225 case DSO_CTRL_GET_FLAGS:
227 case DSO_CTRL_SET_FLAGS:
228 dso->flags = (int)larg;
230 case DSO_CTRL_OR_FLAGS:
231 dso->flags |= (int)larg;
236 DSOerr(DSO_F_WIN32_CTRL,DSO_R_UNKNOWN_COMMAND);