1 /* dso_vms.c -*- mode:C; c-file-style: "eay" -*- */
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).
63 #include <openssl/dso.h>
64 #ifdef OPENSSL_SYS_VMS
65 #pragma message disable DOLLARID
67 #include <lib$routines.h>
73 #ifndef OPENSSL_SYS_VMS
74 DSO_METHOD *DSO_METHOD_vms(void)
79 #pragma message disable DOLLARID
81 static int vms_load(DSO *dso);
82 static int vms_unload(DSO *dso);
83 static void *vms_bind_var(DSO *dso, const char *symname);
84 static DSO_FUNC_TYPE vms_bind_func(DSO *dso, const char *symname);
86 static int vms_unbind_var(DSO *dso, char *symname, void *symptr);
87 static int vms_unbind_func(DSO *dso, char *symname, DSO_FUNC_TYPE symptr);
88 static int vms_init(DSO *dso);
89 static int vms_finish(DSO *dso);
90 static long vms_ctrl(DSO *dso, int cmd, long larg, void *parg);
92 static char *vms_name_converter(DSO *dso, const char *filename);
93 static char *vms_merger(DSO *dso, const char *filespec1,
94 const char *filespec2);
96 static DSO_METHOD dso_meth_vms = {
97 "OpenSSL 'VMS' shared library method",
102 /* For now, "unbind" doesn't exist */
104 NULL, /* unbind_var */
105 NULL, /* unbind_func */
114 /* On VMS, the only "handle" is the file name. LIB$FIND_IMAGE_SYMBOL depends
115 * on the reference to the file name being the same for all calls regarding
116 * one shared image, so we'll just store it in an instance of the following
117 * structure and put a pointer to that instance in the meth_data stack.
119 typedef struct dso_internal_st
121 /* This should contain the name only, no directory,
122 * no extension, nothing but a name. */
123 struct dsc$descriptor_s filename_dsc;
124 char filename[FILENAME_MAX+1];
125 /* This contains whatever is not in filename, if needed.
126 * Normally not defined. */
127 struct dsc$descriptor_s imagename_dsc;
128 char imagename[FILENAME_MAX+1];
132 DSO_METHOD *DSO_METHOD_vms(void)
134 return(&dso_meth_vms);
137 static int vms_load(DSO *dso)
140 /* See applicable comments in dso_dl.c */
141 char *filename = DSO_convert_filename(dso, NULL);
143 const char *sp1, *sp2; /* Search result */
147 DSOerr(DSO_F_VMS_LOAD,DSO_R_NO_FILENAME);
151 /* A file specification may look like this:
153 * node::dev:[dir-spec]name.type;ver
155 * or (for compatibility with TOPS-20):
157 * node::dev:<dir-spec>name.type;ver
159 * and the dir-spec uses '.' as separator. Also, a dir-spec
160 * may consist of several parts, with mixed use of [] and <>:
164 * We need to split the file specification into the name and
165 * the rest (both before and after the name itself).
167 /* Start with trying to find the end of a dir-spec, and save the
168 position of the byte after in sp1 */
169 sp1 = strrchr(filename, ']');
170 sp2 = strrchr(filename, '>');
171 if (sp1 == NULL) sp1 = sp2;
172 if (sp2 != NULL && sp2 > sp1) sp1 = sp2;
173 if (sp1 == NULL) sp1 = strrchr(filename, ':');
177 sp1++; /* The byte after the found character */
178 /* Now, let's see if there's a type, and save the position in sp2 */
179 sp2 = strchr(sp1, '.');
180 /* If we found it, that's where we'll cut. Otherwise, look for a
181 version number and save the position in sp2 */
182 if (sp2 == NULL) sp2 = strchr(sp1, ';');
183 /* If there was still nothing to find, set sp2 to point at the end of
185 if (sp2 == NULL) sp2 = sp1 + strlen(sp1);
187 /* Check that we won't get buffer overflows */
188 if (sp2 - sp1 > FILENAME_MAX
189 || (sp1 - filename) + strlen(sp2) > FILENAME_MAX)
191 DSOerr(DSO_F_VMS_LOAD,DSO_R_FILENAME_TOO_BIG);
195 p = (DSO_VMS_INTERNAL *)OPENSSL_malloc(sizeof(DSO_VMS_INTERNAL));
198 DSOerr(DSO_F_VMS_LOAD,ERR_R_MALLOC_FAILURE);
202 strncpy(p->filename, sp1, sp2-sp1);
203 p->filename[sp2-sp1] = '\0';
205 strncpy(p->imagename, filename, sp1-filename);
206 p->imagename[sp1-filename] = '\0';
207 strcat(p->imagename, sp2);
209 p->filename_dsc.dsc$w_length = strlen(p->filename);
210 p->filename_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
211 p->filename_dsc.dsc$b_class = DSC$K_CLASS_S;
212 p->filename_dsc.dsc$a_pointer = p->filename;
213 p->imagename_dsc.dsc$w_length = strlen(p->imagename);
214 p->imagename_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
215 p->imagename_dsc.dsc$b_class = DSC$K_CLASS_S;
216 p->imagename_dsc.dsc$a_pointer = p->imagename;
218 if(!sk_push(dso->meth_data, (char *)p))
220 DSOerr(DSO_F_VMS_LOAD,DSO_R_STACK_ERROR);
224 /* Success (for now, we lie. We actually do not know...) */
225 dso->loaded_filename = filename;
232 OPENSSL_free(filename);
236 /* Note that this doesn't actually unload the shared image, as there is no
237 * such thing in VMS. Next time it get loaded again, a new copy will
238 * actually be loaded.
240 static int vms_unload(DSO *dso)
245 DSOerr(DSO_F_VMS_UNLOAD,ERR_R_PASSED_NULL_PARAMETER);
248 if(sk_num(dso->meth_data) < 1)
250 p = (DSO_VMS_INTERNAL *)sk_pop(dso->meth_data);
253 DSOerr(DSO_F_VMS_UNLOAD,DSO_R_NULL_HANDLE);
261 /* We must do this in a separate function because of the way the exception
262 handler works (it makes this function return */
263 static int do_find_symbol(DSO_VMS_INTERNAL *ptr,
264 struct dsc$descriptor_s *symname_dsc, void **sym,
267 /* Make sure that signals are caught and returned instead of
268 aborting the program. The exception handler gets unestablished
269 automatically on return from this function. */
270 lib$establish(lib$sig_to_ret);
272 if(ptr->imagename_dsc.dsc$w_length)
273 return lib$find_image_symbol(&ptr->filename_dsc,
275 &ptr->imagename_dsc, flags);
277 return lib$find_image_symbol(&ptr->filename_dsc,
282 void vms_bind_sym(DSO *dso, const char *symname, void **sym)
284 DSO_VMS_INTERNAL *ptr;
287 int flags = (1<<4); /* LIB$M_FIS_MIXEDCASE, but this symbol isn't
288 defined in VMS older than 7.0 or so */
292 struct dsc$descriptor_s symname_dsc;
295 symname_dsc.dsc$w_length = strlen(symname);
296 symname_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
297 symname_dsc.dsc$b_class = DSC$K_CLASS_S;
298 symname_dsc.dsc$a_pointer = (char *)symname; /* The cast is needed */
300 if((dso == NULL) || (symname == NULL))
302 DSOerr(DSO_F_VMS_BIND_SYM,ERR_R_PASSED_NULL_PARAMETER);
305 if(sk_num(dso->meth_data) < 1)
307 DSOerr(DSO_F_VMS_BIND_SYM,DSO_R_STACK_ERROR);
310 ptr = (DSO_VMS_INTERNAL *)sk_value(dso->meth_data,
311 sk_num(dso->meth_data) - 1);
314 DSOerr(DSO_F_VMS_BIND_SYM,DSO_R_NULL_HANDLE);
318 if(dso->flags & DSO_FLAG_UPCASE_SYMBOL) flags = 0;
320 status = do_find_symbol(ptr, &symname_dsc, sym, flags);
322 if(!$VMS_STATUS_SUCCESS(status))
324 unsigned short length;
326 struct dsc$descriptor_s errstring_dsc;
328 errstring_dsc.dsc$w_length = sizeof(errstring);
329 errstring_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
330 errstring_dsc.dsc$b_class = DSC$K_CLASS_S;
331 errstring_dsc.dsc$a_pointer = errstring;
335 status = sys$getmsg(status, &length, &errstring_dsc, 1, 0);
337 if (!$VMS_STATUS_SUCCESS(status))
338 lib$signal(status); /* This is really bad. Abort! */
341 errstring[length] = '\0';
343 DSOerr(DSO_F_VMS_BIND_SYM,DSO_R_SYM_FAILURE);
344 if (ptr->imagename_dsc.dsc$w_length)
345 ERR_add_error_data(9,
347 " in ", ptr->filename,
348 " (", ptr->imagename, ")",
351 ERR_add_error_data(6,
353 " in ", ptr->filename,
361 static void *vms_bind_var(DSO *dso, const char *symname)
364 vms_bind_sym(dso, symname, &sym);
368 static DSO_FUNC_TYPE vms_bind_func(DSO *dso, const char *symname)
370 DSO_FUNC_TYPE sym = 0;
371 vms_bind_sym(dso, symname, (void **)&sym);
375 static char *vms_merger(DSO *dso, const char *filespec1, const char *filespec2)
378 int filespec1len, filespec2len;
382 char esa[NAML$C_MAXRSS];
385 char esa[NAM$C_MAXRSS];
389 if (!filespec1) filespec1 = "";
390 if (!filespec2) filespec2 = "";
391 filespec1len = strlen(filespec1);
392 filespec2len = strlen(filespec2);
401 fab.fab$l_fna = (char *)filespec1;
402 fab.fab$b_fns = filespec1len;
403 fab.fab$l_dna = (char *)filespec2;
404 fab.fab$b_dns = filespec2len;
406 if (filespec1len > NAM$C_MAXRSS)
410 nam.naml$l_long_filename = (char *)filespec1;
411 nam.naml$l_long_filename_size = filespec1len;
413 if (filespec2len > NAM$C_MAXRSS)
417 nam.naml$l_long_defname = (char *)filespec2;
418 nam.naml$l_long_defname_size = filespec2len;
420 nam.naml$l_esa = esa;
421 nam.naml$b_ess = NAM$C_MAXRSS;
422 nam.naml$l_long_expand = esa;
423 nam.naml$l_long_expand_alloc = sizeof(esa);
424 nam.naml$b_nop = NAM$M_SYNCHK | NAM$M_PWD;
425 nam.naml$v_no_short_upcase = 1;
426 fab.fab$l_naml = &nam;
429 nam.nam$b_ess = NAM$C_MAXRSS;
430 nam.nam$b_nop = NAM$M_SYNCHK | NAM$M_PWD;
431 fab.fab$l_nam = &nam;
434 status = sys$parse(&fab, 0, 0);
436 if(!$VMS_STATUS_SUCCESS(status))
438 unsigned short length;
440 struct dsc$descriptor_s errstring_dsc;
442 errstring_dsc.dsc$w_length = sizeof(errstring);
443 errstring_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
444 errstring_dsc.dsc$b_class = DSC$K_CLASS_S;
445 errstring_dsc.dsc$a_pointer = errstring;
447 status = sys$getmsg(status, &length, &errstring_dsc, 1, 0);
449 if (!$VMS_STATUS_SUCCESS(status))
450 lib$signal(status); /* This is really bad. Abort! */
453 errstring[length] = '\0';
455 DSOerr(DSO_F_VMS_MERGER,DSO_R_FAILURE);
456 ERR_add_error_data(7,
457 "filespec \"", filespec1, "\", ",
458 "defaults \"", filespec2, "\": ",
464 if (nam.naml$l_long_expand_size)
466 merged = OPENSSL_malloc(nam.naml$l_long_expand_size + 1);
469 strncpy(merged, nam.naml$l_long_expand,
470 nam.naml$l_long_expand_size);
471 merged[nam.naml$l_long_expand_size] = '\0';
475 merged = OPENSSL_malloc(nam.naml$b_esl + 1);
478 strncpy(merged, nam.naml$l_esa,
480 merged[nam.naml$b_esl] = '\0';
483 merged = OPENSSL_malloc(nam.nam$b_esl + 1);
486 strncpy(merged, nam.nam$l_esa,
488 merged[nam.nam$b_esl] = '\0';
492 DSOerr(DSO_F_VMS_MERGER,
493 ERR_R_MALLOC_FAILURE);
496 static char *vms_name_converter(DSO *dso, const char *filename)
498 int len = strlen(filename);
499 char *not_translated = OPENSSL_malloc(len+1);
500 strcpy(not_translated,filename);
501 return(not_translated);
504 #endif /* OPENSSL_SYS_VMS */