2 /* Written by Richard Levitte (richard@levitte.org) 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 <lib$routines.h>
63 #include <libfisdef.h>
68 #include <openssl/dso.h>
71 DSO_METHOD *DSO_METHOD_vms(void)
76 #pragma message disable DOLLARID
78 static int vms_load(DSO *dso, const char *filename);
79 static int vms_unload(DSO *dso);
80 static void *vms_bind_var(DSO *dso, const char *symname);
81 static DSO_FUNC_TYPE vms_bind_func(DSO *dso, const char *symname);
83 static int vms_unbind_var(DSO *dso, char *symname, void *symptr);
84 static int vms_unbind_func(DSO *dso, char *symname, DSO_FUNC_TYPE symptr);
85 static int vms_init(DSO *dso);
86 static int vms_finish(DSO *dso);
88 static long vms_ctrl(DSO *dso, int cmd, long larg, void *parg);
90 static DSO_METHOD dso_meth_vms = {
91 "OpenSSL 'VMS' shared library method",
96 /* For now, "unbind" doesn't exist */
98 NULL, /* unbind_var */
99 NULL, /* unbind_func */
106 /* On VMS, the only "handle" is the file name. LIB$FIND_IMAGE_SYMBOL depends
107 * on the reference to the file name being the same for all calls regarding
108 * one shared image, so we'll just store it in an instance of the following
109 * structure and put a pointer to that instance in the meth_data stack.
111 typedef struct dso_internal_st
113 /* This should contain the name only, no directory,
114 * no extension, nothing but a name. */
115 struct dsc$descriptor_s filename_dsc;
116 char filename[FILENAME_MAX+1];
117 /* This contains whatever is not in filename, if needed.
118 * Normally not defined. */
119 struct dsc$descriptor_s imagename_dsc;
120 char imagename[FILENAME_MAX+1];
124 DSO_METHOD *DSO_METHOD_vms(void)
126 return(&dso_meth_vms);
129 static int vms_load(DSO *dso, const char *filename)
132 const char *sp1, *sp2; /* Search result */
134 /* A file specification may look like this:
136 * node::dev:[dir-spec]name.type;ver
138 * or (for compatibility with TOPS-20):
140 * node::dev:<dir-spec>name.type;ver
142 * and the dir-spec uses '.' as separator. Also, a dir-spec
143 * may consist of several parts, with mixed use of [] and <>:
147 * We need to split the file specification into the name and
148 * the rest (both before and after the name itself).
150 /* Start with trying to find the end of a dir-spec, and save the
151 position of the byte after in sp1 */
152 sp1 = strrchr(filename, ']');
153 sp2 = strrchr(filename, '>');
154 if (sp1 == NULL) sp1 = sp2;
155 if (sp2 != NULL && sp2 > sp1) sp1 = sp2;
156 if (sp1 == NULL) sp1 = strrchr(filename, ':');
160 sp1++; /* The byte after the found character */
161 /* Now, let's see if there's a type, and save the position in sp2 */
162 sp2 = strchr(sp1, '.');
163 /* If we found it, that's where we'll cut. Otherwise, look for a
164 version number and save the position in sp2 */
165 if (sp2 == NULL) sp2 = strchr(sp1, ';');
166 /* If there was still nothing to find, set sp2 to point at the end of
168 if (sp2 == NULL) sp2 = sp1 + strlen(sp1);
170 /* Check that we won't get buffer overflows */
171 if (sp2 - sp1 > FILENAME_MAX
172 || (sp1 - filename) + strlen(sp2) > FILENAME_MAX)
174 DSOerr(DSO_F_VMS_LOAD,DSO_R_FILENAME_TOO_BIG);
178 p = (DSO_VMS_INTERNAL *)OPENSSL_malloc(sizeof(DSO_VMS_INTERNAL));
181 DSOerr(DSO_F_VMS_LOAD,ERR_R_MALLOC_FAILURE);
185 strncpy(p->filename, sp1, sp2-sp1);
186 p->filename[sp2-sp1] = '\0';
188 strncpy(p->imagename, filename, sp1-filename);
189 p->imagename[sp1-filename] = '\0';
190 strcat(p->imagename, sp2);
192 p->filename_dsc.dsc$w_length = strlen(p->filename);
193 p->filename_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
194 p->filename_dsc.dsc$b_class = DSC$K_CLASS_S;
195 p->filename_dsc.dsc$a_pointer = p->filename;
196 p->imagename_dsc.dsc$w_length = strlen(p->imagename);
197 p->imagename_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
198 p->imagename_dsc.dsc$b_class = DSC$K_CLASS_S;
199 p->imagename_dsc.dsc$a_pointer = p->imagename;
201 if(!sk_push(dso->meth_data, (char *)p))
203 DSOerr(DSO_F_VMS_LOAD,DSO_R_STACK_ERROR);
210 /* Note that this doesn't actually unload the shared image, as there is no
211 * such thing in VMS. Next time it get loaded again, a new copy will
212 * actually be loaded.
214 static int vms_unload(DSO *dso)
219 DSOerr(DSO_F_VMS_UNLOAD,ERR_R_PASSED_NULL_PARAMETER);
222 if(sk_num(dso->meth_data) < 1)
224 p = (DSO_VMS_INTERNAL *)sk_pop(dso->meth_data);
227 DSOerr(DSO_F_VMS_UNLOAD,DSO_R_NULL_HANDLE);
235 /* We must do this in a separate function because of the way the exception
236 handler works (it makes this function return */
237 static int do_find_symbol(DSO_VMS_INTERNAL *ptr,
238 struct dsc$descriptor_s *symname_dsc, void **sym,
241 /* Make sure that signals are caught and returned instead of
242 aborting the program. The exception handler gets unestablished
243 automatically on return from this function. */
244 lib$establish(lib$sig_to_ret);
246 if(ptr->imagename_dsc.dsc$w_length)
247 return lib$find_image_symbol(&ptr->filename_dsc,
249 &ptr->imagename_dsc, flags);
251 return lib$find_image_symbol(&ptr->filename_dsc,
256 static void *vms_bind_sym(DSO *dso, const char *symname)
258 DSO_VMS_INTERNAL *ptr;
261 int flags = LIB$M_FIS_MIXEDCASE;
262 struct dsc$descriptor_s symname_dsc;
264 symname_dsc.dsc$w_length = strlen(symname);
265 symname_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
266 symname_dsc.dsc$b_class = DSC$K_CLASS_S;
267 symname_dsc.dsc$a_pointer = (char *)symname; /* The cast is needed */
269 if((dso == NULL) || (symname == NULL))
271 DSOerr(DSO_F_VMS_BIND_VAR,ERR_R_PASSED_NULL_PARAMETER);
274 if(sk_num(dso->meth_data) < 1)
276 DSOerr(DSO_F_VMS_BIND_VAR,DSO_R_STACK_ERROR);
279 ptr = (DSO_VMS_INTERNAL *)sk_value(dso->meth_data,
280 sk_num(dso->meth_data) - 1);
283 DSOerr(DSO_F_VMS_BIND_VAR,DSO_R_NULL_HANDLE);
287 if(dso->flags & DSO_FLAG_UPCASE_SYMBOL) flags = 0;
289 status = do_find_symbol(ptr, &symname_dsc, &sym, flags);
291 if(!$VMS_STATUS_SUCCESS(status))
293 unsigned short length;
295 struct dsc$descriptor_s errstring_dsc;
297 errstring_dsc.dsc$w_length = sizeof(errstring);
298 errstring_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
299 errstring_dsc.dsc$b_class = DSC$K_CLASS_S;
300 errstring_dsc.dsc$a_pointer = errstring;
302 status = sys$getmsg(status, &length, &errstring_dsc, 1, 0);
304 if (!$VMS_STATUS_SUCCESS(status))
305 lib$signal(status); /* This is really bad. Abort! */
308 errstring[length] = '\0';
310 DSOerr(DSO_F_VMS_BIND_VAR,DSO_R_SYM_FAILURE);
311 if (ptr->imagename_dsc.dsc$w_length)
312 ERR_add_error_data(9,
314 " in ", ptr->filename,
315 " (", ptr->imagename, ")",
318 ERR_add_error_data(6,
320 " in ", ptr->filename,
328 static void *vms_bind_var(DSO *dso, const char *symname)
330 return vms_bind_sym(dso, symname);
333 static DSO_FUNC_TYPE vms_bind_func(DSO *dso, const char *symname)
335 return (DSO_FUNC_TYPE)vms_bind_sym(dso, symname);
338 static long vms_ctrl(DSO *dso, int cmd, long larg, void *parg)
342 DSOerr(DSO_F_VMS_CTRL,ERR_R_PASSED_NULL_PARAMETER);
347 case DSO_CTRL_GET_FLAGS:
349 case DSO_CTRL_SET_FLAGS:
350 dso->flags = (int)larg;
352 case DSO_CTRL_OR_FLAGS:
353 dso->flags |= (int)larg;
358 DSOerr(DSO_F_VMS_CTRL,DSO_R_UNKNOWN_COMMAND);