1 /* dso_vms.c -*- mode:C; c-file-style: "eay" -*- */
3 * Written by Richard Levitte (richard@levitte.org) for the OpenSSL project
6 /* ====================================================================
7 * Copyright (c) 2000 The OpenSSL Project. All rights reserved.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in
18 * the documentation and/or other materials provided with the
21 * 3. All advertising materials mentioning features or use of this
22 * software must display the following acknowledgment:
23 * "This product includes software developed by the OpenSSL Project
24 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
26 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
27 * endorse or promote products derived from this software without
28 * prior written permission. For written permission, please contact
29 * licensing@OpenSSL.org.
31 * 5. Products derived from this software may not be called "OpenSSL"
32 * nor may "OpenSSL" appear in their names without prior written
33 * permission of the OpenSSL Project.
35 * 6. Redistributions of any form whatsoever must retain the following
37 * "This product includes software developed by the OpenSSL Project
38 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
40 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
41 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
43 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
44 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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52 * ====================================================================
54 * This product includes cryptographic software written by Eric Young
55 * (eay@cryptsoft.com). This product includes software written by Tim
56 * Hudson (tjh@cryptsoft.com).
63 #include "internal/cryptlib.h"
64 #include <openssl/dso.h>
66 #ifndef OPENSSL_SYS_VMS
67 DSO_METHOD *DSO_METHOD_vms(void)
73 # pragma message disable DOLLARID
75 # include <lib$routines.h>
81 /* Some compiler options may mask the declaration of "_malloc32". */
82 # if __INITIAL_POINTER_SIZE && defined _ANSI_C_SOURCE
83 # if __INITIAL_POINTER_SIZE == 64
84 # pragma pointer_size save
85 # pragma pointer_size 32
86 void *_malloc32(__size_t);
87 # pragma pointer_size restore
88 # endif /* __INITIAL_POINTER_SIZE == 64 */
89 # endif /* __INITIAL_POINTER_SIZE && defined
92 # pragma message disable DOLLARID
94 static int vms_load(DSO *dso);
95 static int vms_unload(DSO *dso);
96 static void *vms_bind_var(DSO *dso, const char *symname);
97 static DSO_FUNC_TYPE vms_bind_func(DSO *dso, const char *symname);
98 static char *vms_name_converter(DSO *dso, const char *filename);
99 static char *vms_merger(DSO *dso, const char *filespec1,
100 const char *filespec2);
102 static DSO_METHOD dso_meth_vms = {
103 "OpenSSL 'VMS' shared library method",
116 * On VMS, the only "handle" is the file name. LIB$FIND_IMAGE_SYMBOL depends
117 * on the reference to the file name being the same for all calls regarding
118 * one shared image, so we'll just store it in an instance of the following
119 * structure and put a pointer to that instance in the meth_data stack.
121 typedef struct dso_internal_st {
123 * This should contain the name only, no directory, no extension, nothing
126 struct dsc$descriptor_s filename_dsc;
127 char filename[NAMX_MAXRSS + 1];
129 * This contains whatever is not in filename, if needed. Normally not
132 struct dsc$descriptor_s imagename_dsc;
133 char imagename[NAMX_MAXRSS + 1];
136 DSO_METHOD *DSO_METHOD_vms(void)
138 return (&dso_meth_vms);
141 static int vms_load(DSO *dso)
144 /* See applicable comments in dso_dl.c */
145 char *filename = DSO_convert_filename(dso, NULL);
147 /* Ensure 32-bit pointer for "p", and appropriate malloc() function. */
148 # if __INITIAL_POINTER_SIZE == 64
149 # define DSO_MALLOC _malloc32
150 # pragma pointer_size save
151 # pragma pointer_size 32
152 # else /* __INITIAL_POINTER_SIZE == 64 */
153 # define DSO_MALLOC OPENSSL_malloc
154 # endif /* __INITIAL_POINTER_SIZE == 64 [else] */
156 DSO_VMS_INTERNAL *p = NULL;
158 # if __INITIAL_POINTER_SIZE == 64
159 # pragma pointer_size restore
160 # endif /* __INITIAL_POINTER_SIZE == 64 */
162 const char *sp1, *sp2; /* Search result */
163 const char *ext = NULL; /* possible extension to add */
165 if (filename == NULL) {
166 DSOerr(DSO_F_VMS_LOAD, DSO_R_NO_FILENAME);
171 * A file specification may look like this:
173 * node::dev:[dir-spec]name.type;ver
175 * or (for compatibility with TOPS-20):
177 * node::dev:<dir-spec>name.type;ver
179 * and the dir-spec uses '.' as separator. Also, a dir-spec
180 * may consist of several parts, with mixed use of [] and <>:
184 * We need to split the file specification into the name and
185 * the rest (both before and after the name itself).
188 * Start with trying to find the end of a dir-spec, and save the position
189 * of the byte after in sp1
191 sp1 = strrchr(filename, ']');
192 sp2 = strrchr(filename, '>');
195 if (sp2 != NULL && sp2 > sp1)
198 sp1 = strrchr(filename, ':');
202 sp1++; /* The byte after the found character */
203 /* Now, let's see if there's a type, and save the position in sp2 */
204 sp2 = strchr(sp1, '.');
206 * If there is a period and the next character is a semi-colon,
207 * we need to add an extension
209 if (sp2 != NULL && sp2[1] == ';')
212 * If we found it, that's where we'll cut. Otherwise, look for a version
213 * number and save the position in sp2
216 sp2 = strchr(sp1, ';');
220 * If there was still nothing to find, set sp2 to point at the end of the
224 sp2 = sp1 + strlen(sp1);
226 /* Check that we won't get buffer overflows */
227 if (sp2 - sp1 > FILENAME_MAX
228 || (sp1 - filename) + strlen(sp2) > FILENAME_MAX) {
229 DSOerr(DSO_F_VMS_LOAD, DSO_R_FILENAME_TOO_BIG);
233 p = DSO_MALLOC(sizeof(*p));
235 DSOerr(DSO_F_VMS_LOAD, ERR_R_MALLOC_FAILURE);
239 strncpy(p->filename, sp1, sp2 - sp1);
240 p->filename[sp2 - sp1] = '\0';
242 strncpy(p->imagename, filename, sp1 - filename);
243 p->imagename[sp1 - filename] = '\0';
245 strcat(p->imagename, ext);
249 strcat(p->imagename, sp2);
251 p->filename_dsc.dsc$w_length = strlen(p->filename);
252 p->filename_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
253 p->filename_dsc.dsc$b_class = DSC$K_CLASS_S;
254 p->filename_dsc.dsc$a_pointer = p->filename;
255 p->imagename_dsc.dsc$w_length = strlen(p->imagename);
256 p->imagename_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
257 p->imagename_dsc.dsc$b_class = DSC$K_CLASS_S;
258 p->imagename_dsc.dsc$a_pointer = p->imagename;
260 if (!sk_void_push(dso->meth_data, (char *)p)) {
261 DSOerr(DSO_F_VMS_LOAD, DSO_R_STACK_ERROR);
265 /* Success (for now, we lie. We actually do not know...) */
266 dso->loaded_filename = filename;
271 OPENSSL_free(filename);
276 * Note that this doesn't actually unload the shared image, as there is no
277 * such thing in VMS. Next time it get loaded again, a new copy will
278 * actually be loaded.
280 static int vms_unload(DSO *dso)
284 DSOerr(DSO_F_VMS_UNLOAD, ERR_R_PASSED_NULL_PARAMETER);
287 if (sk_void_num(dso->meth_data) < 1)
289 p = (DSO_VMS_INTERNAL *)sk_void_pop(dso->meth_data);
291 DSOerr(DSO_F_VMS_UNLOAD, DSO_R_NULL_HANDLE);
300 * We must do this in a separate function because of the way the exception
301 * handler works (it makes this function return
303 static int do_find_symbol(DSO_VMS_INTERNAL *ptr,
304 struct dsc$descriptor_s *symname_dsc, void **sym,
308 * Make sure that signals are caught and returned instead of aborting the
309 * program. The exception handler gets unestablished automatically on
310 * return from this function.
312 lib$establish(lib$sig_to_ret);
314 if (ptr->imagename_dsc.dsc$w_length)
315 return lib$find_image_symbol(&ptr->filename_dsc,
317 &ptr->imagename_dsc, flags);
319 return lib$find_image_symbol(&ptr->filename_dsc,
320 symname_dsc, sym, 0, flags);
323 void vms_bind_sym(DSO *dso, const char *symname, void **sym)
325 DSO_VMS_INTERNAL *ptr;
328 int flags = (1 << 4); /* LIB$M_FIS_MIXEDCASE, but this symbol isn't
329 * defined in VMS older than 7.0 or so */
333 struct dsc$descriptor_s symname_dsc;
335 /* Arrange 32-bit pointer to (copied) string storage, if needed. */
336 # if __INITIAL_POINTER_SIZE == 64
337 # define SYMNAME symname_32p
338 # pragma pointer_size save
339 # pragma pointer_size 32
341 # pragma pointer_size restore
342 char symname_32[NAMX_MAXRSS + 1];
343 # else /* __INITIAL_POINTER_SIZE == 64 */
344 # define SYMNAME ((char *) symname)
345 # endif /* __INITIAL_POINTER_SIZE == 64 [else] */
349 if ((dso == NULL) || (symname == NULL)) {
350 DSOerr(DSO_F_VMS_BIND_SYM, ERR_R_PASSED_NULL_PARAMETER);
353 # if __INITIAL_POINTER_SIZE == 64
354 /* Copy the symbol name to storage with a 32-bit pointer. */
355 symname_32p = symname_32;
356 strcpy(symname_32p, symname);
357 # endif /* __INITIAL_POINTER_SIZE == 64 [else] */
359 symname_dsc.dsc$w_length = strlen(SYMNAME);
360 symname_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
361 symname_dsc.dsc$b_class = DSC$K_CLASS_S;
362 symname_dsc.dsc$a_pointer = SYMNAME;
364 if (sk_void_num(dso->meth_data) < 1) {
365 DSOerr(DSO_F_VMS_BIND_SYM, DSO_R_STACK_ERROR);
368 ptr = (DSO_VMS_INTERNAL *)sk_void_value(dso->meth_data,
369 sk_void_num(dso->meth_data) - 1);
371 DSOerr(DSO_F_VMS_BIND_SYM, DSO_R_NULL_HANDLE);
375 if (dso->flags & DSO_FLAG_UPCASE_SYMBOL)
378 status = do_find_symbol(ptr, &symname_dsc, sym, flags);
380 if (!$VMS_STATUS_SUCCESS(status)) {
381 unsigned short length;
383 struct dsc$descriptor_s errstring_dsc;
385 errstring_dsc.dsc$w_length = sizeof(errstring);
386 errstring_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
387 errstring_dsc.dsc$b_class = DSC$K_CLASS_S;
388 errstring_dsc.dsc$a_pointer = errstring;
392 status = sys$getmsg(status, &length, &errstring_dsc, 1, 0);
394 if (!$VMS_STATUS_SUCCESS(status))
395 lib$signal(status); /* This is really bad. Abort! */
397 errstring[length] = '\0';
399 DSOerr(DSO_F_VMS_BIND_SYM, DSO_R_SYM_FAILURE);
400 if (ptr->imagename_dsc.dsc$w_length)
401 ERR_add_error_data(9,
403 " in ", ptr->filename,
404 " (", ptr->imagename, ")",
407 ERR_add_error_data(6,
409 " in ", ptr->filename, ": ", errstring);
416 static void *vms_bind_var(DSO *dso, const char *symname)
419 vms_bind_sym(dso, symname, &sym);
423 static DSO_FUNC_TYPE vms_bind_func(DSO *dso, const char *symname)
425 DSO_FUNC_TYPE sym = 0;
426 vms_bind_sym(dso, symname, (void **)&sym);
430 static char *vms_merger(DSO *dso, const char *filespec1,
431 const char *filespec2)
434 int filespec1len, filespec2len;
436 struct NAMX_STRUCT nam;
437 char esa[NAMX_MAXRSS + 1];
440 /* Arrange 32-bit pointer to (copied) string storage, if needed. */
441 # if __INITIAL_POINTER_SIZE == 64
442 # define FILESPEC1 filespec1_32p;
443 # define FILESPEC2 filespec2_32p;
444 # pragma pointer_size save
445 # pragma pointer_size 32
448 # pragma pointer_size restore
449 char filespec1_32[NAMX_MAXRSS + 1];
450 char filespec2_32[NAMX_MAXRSS + 1];
451 # else /* __INITIAL_POINTER_SIZE == 64 */
452 # define FILESPEC1 ((char *) filespec1)
453 # define FILESPEC2 ((char *) filespec2)
454 # endif /* __INITIAL_POINTER_SIZE == 64 [else] */
460 filespec1len = strlen(filespec1);
461 filespec2len = strlen(filespec2);
463 # if __INITIAL_POINTER_SIZE == 64
464 /* Copy the file names to storage with a 32-bit pointer. */
465 filespec1_32p = filespec1_32;
466 filespec2_32p = filespec2_32;
467 strcpy(filespec1_32p, filespec1);
468 strcpy(filespec2_32p, filespec2);
469 # endif /* __INITIAL_POINTER_SIZE == 64 [else] */
474 FAB_OR_NAML(fab, nam).FAB_OR_NAML_FNA = FILESPEC1;
475 FAB_OR_NAML(fab, nam).FAB_OR_NAML_FNS = filespec1len;
476 FAB_OR_NAML(fab, nam).FAB_OR_NAML_DNA = FILESPEC2;
477 FAB_OR_NAML(fab, nam).FAB_OR_NAML_DNS = filespec2len;
478 NAMX_DNA_FNA_SET(fab)
481 nam.NAMX_ESS = NAMX_MAXRSS;
482 nam.NAMX_NOP = NAM$M_SYNCHK | NAM$M_PWD;
483 SET_NAMX_NO_SHORT_UPCASE(nam);
487 status = sys$parse(&fab, 0, 0);
489 if (!$VMS_STATUS_SUCCESS(status)) {
490 unsigned short length;
492 struct dsc$descriptor_s errstring_dsc;
494 errstring_dsc.dsc$w_length = sizeof(errstring);
495 errstring_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
496 errstring_dsc.dsc$b_class = DSC$K_CLASS_S;
497 errstring_dsc.dsc$a_pointer = errstring;
499 status = sys$getmsg(status, &length, &errstring_dsc, 1, 0);
501 if (!$VMS_STATUS_SUCCESS(status))
502 lib$signal(status); /* This is really bad. Abort! */
504 errstring[length] = '\0';
506 DSOerr(DSO_F_VMS_MERGER, DSO_R_FAILURE);
507 ERR_add_error_data(7,
508 "filespec \"", filespec1, "\", ",
509 "defaults \"", filespec2, "\": ", errstring);
514 merged = OPENSSL_malloc(nam.NAMX_ESL + 1);
517 strncpy(merged, nam.NAMX_ESA, nam.NAMX_ESL);
518 merged[nam.NAMX_ESL] = '\0';
521 DSOerr(DSO_F_VMS_MERGER, ERR_R_MALLOC_FAILURE);
524 static char *vms_name_converter(DSO *dso, const char *filename)
526 int len = strlen(filename);
527 char *not_translated = OPENSSL_malloc(len + 1);
528 if (not_translated != NULL)
529 strcpy(not_translated, filename);
530 return (not_translated);
533 #endif /* OPENSSL_SYS_VMS */