Add a warning stipulating how things should be coded in ossl_init_base
[openssl.git] / crypto / dso / dso_vms.c
index b8fee7de3c1984de65d878b19ea432a40be0a804..e3c157bf57926b332e6b9ba5489163b6fe216b08 100644 (file)
-/* dso_vms.c */
-/* Written by Richard Levitte (richard@levitte.org) for the OpenSSL
- * project 2000.
- */
-/* ====================================================================
- * Copyright (c) 2000 The OpenSSL Project.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer. 
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- *
- * 3. All advertising materials mentioning features or use of this
- *    software must display the following acknowledgment:
- *    "This product includes software developed by the OpenSSL Project
- *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
- *
- * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
- *    endorse or promote products derived from this software without
- *    prior written permission. For written permission, please contact
- *    licensing@OpenSSL.org.
- *
- * 5. Products derived from this software may not be called "OpenSSL"
- *    nor may "OpenSSL" appear in their names without prior written
- *    permission of the OpenSSL Project.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- *    acknowledgment:
- *    "This product includes software developed by the OpenSSL Project
- *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
- *
- * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
- * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- * ====================================================================
- *
- * This product includes cryptographic software written by Eric Young
- * (eay@cryptsoft.com).  This product includes software written by Tim
- * Hudson (tjh@cryptsoft.com).
+/*
+ * Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved.
  *
+ * Licensed under the OpenSSL license (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
  */
 
-#include <stdio.h>
-#include <string.h>
-#include <errno.h>
-#ifdef VMS
-#pragma message disable DOLLARID
-#include <lib$routines.h>
-#include <libfisdef.h>
-#include <stsdef.h>
-#include <descrip.h>
-#include <starlet.h>
-#endif
-#include "cryptlib.h"
-#include <openssl/dso.h>
-
-#ifndef VMS
-DSO_METHOD *DSO_METHOD_vms(void)
-       {
-       return NULL;
-       }
-#else
-#pragma message disable DOLLARID
+#include "dso_locl.h"
+
+#ifdef OPENSSL_SYS_VMS
+
+# pragma message disable DOLLARID
+# include <errno.h>
+# include <rms.h>
+# include <lib$routines.h>
+# include <libfisdef.h>
+# include <stsdef.h>
+# include <descrip.h>
+# include <starlet.h>
+# include "../vms_rms.h"
+
+/* Some compiler options may mask the declaration of "_malloc32". */
+# if __INITIAL_POINTER_SIZE && defined _ANSI_C_SOURCE
+#  if __INITIAL_POINTER_SIZE == 64
+#   pragma pointer_size save
+#   pragma pointer_size 32
+void *_malloc32(__size_t);
+#   pragma pointer_size restore
+#  endif                        /* __INITIAL_POINTER_SIZE == 64 */
+# endif                         /* __INITIAL_POINTER_SIZE && defined
+                                 * _ANSI_C_SOURCE */
+
+# pragma message disable DOLLARID
 
 static int vms_load(DSO *dso);
 static int vms_unload(DSO *dso);
-static void *vms_bind_var(DSO *dso, const char *symname);
 static DSO_FUNC_TYPE vms_bind_func(DSO *dso, const char *symname);
-#if 0
-static int vms_unbind_var(DSO *dso, char *symname, void *symptr);
-static int vms_unbind_func(DSO *dso, char *symname, DSO_FUNC_TYPE symptr);
-static int vms_init(DSO *dso);
-static int vms_finish(DSO *dso);
-static long vms_ctrl(DSO *dso, int cmd, long larg, void *parg);
-#endif
-static char *vms_name_converter(DSO *dso);
+static char *vms_name_converter(DSO *dso, const char *filename);
+static char *vms_merger(DSO *dso, const char *filespec1,
+                        const char *filespec2);
 
 static DSO_METHOD dso_meth_vms = {
-       "OpenSSL 'VMS' shared library method",
-       vms_load,
-       NULL, /* unload */
-       vms_bind_var,
-       vms_bind_func,
-/* For now, "unbind" doesn't exist */
-#if 0
-       NULL, /* unbind_var */
-       NULL, /* unbind_func */
-#endif
-       NULL, /* ctrl */
-       vms_name_converter,
-       NULL, /* init */
-       NULL  /* finish */
-       };
-
-/* On VMS, the only "handle" is the file name.  LIB$FIND_IMAGE_SYMBOL depends
+    "OpenSSL 'VMS' shared library method",
+    vms_load,
+    NULL,                       /* unload */
+    vms_bind_func,
+    NULL,                       /* ctrl */
+    vms_name_converter,
+    vms_merger,
+    NULL,                       /* init */
+    NULL,                       /* finish */
+    NULL,                       /* pathbyaddr */
+    NULL                        /* globallookup */
+};
+
+/*
+ * On VMS, the only "handle" is the file name.  LIB$FIND_IMAGE_SYMBOL depends
  * on the reference to the file name being the same for all calls regarding
  * one shared image, so we'll just store it in an instance of the following
  * structure and put a pointer to that instance in the meth_data stack.
  */
-typedef struct dso_internal_st
-       {
-       /* This should contain the name only, no directory,
-        * no extension, nothing but a name. */
-       struct dsc$descriptor_s filename_dsc;
-       char filename[FILENAME_MAX+1];
-       /* This contains whatever is not in filename, if needed.
-        * Normally not defined. */
-       struct dsc$descriptor_s imagename_dsc;
-       char imagename[FILENAME_MAX+1];
-       } DSO_VMS_INTERNAL;
-
-
-DSO_METHOD *DSO_METHOD_vms(void)
-       {
-       return(&dso_meth_vms);
-       }
+typedef struct dso_internal_st {
+    /*
+     * This should contain the name only, no directory, no extension, nothing
+     * but a name.
+     */
+    struct dsc$descriptor_s filename_dsc;
+    char filename[NAMX_MAXRSS + 1];
+    /*
+     * This contains whatever is not in filename, if needed. Normally not
+     * defined.
+     */
+    struct dsc$descriptor_s imagename_dsc;
+    char imagename[NAMX_MAXRSS + 1];
+} DSO_VMS_INTERNAL;
+
+DSO_METHOD *DSO_METHOD_openssl(void)
+{
+    return &dso_meth_vms;
+}
 
 static int vms_load(DSO *dso)
-       {
-       void *ptr = NULL;
-       /* See applicable comments in dso_dl.c */
-       char *filename = DSO_convert_filename(dso, NULL);
-       DSO_VMS_INTERNAL *p;
-       const char *sp1, *sp2;  /* Search result */
-
-       if(filename == NULL)
-               {
-               DSOerr(DSO_F_DLFCN_LOAD,DSO_R_NO_FILENAME);
-               goto err;
-               }
-
-       /* A file specification may look like this:
-        *
-        *      node::dev:[dir-spec]name.type;ver
-        *
-        * or (for compatibility with TOPS-20):
-        *
-        *      node::dev:<dir-spec>name.type;ver
-        *
-        * and the dir-spec uses '.' as separator.  Also, a dir-spec
-        * may consist of several parts, with mixed use of [] and <>:
-        *
-        *      [dir1.]<dir2>
-        *
-        * We need to split the file specification into the name and
-        * the rest (both before and after the name itself).
-        */
-       /* Start with trying to find the end of a dir-spec, and save the
-          position of the byte after in sp1 */
-       sp1 = strrchr(filename, ']');
-       sp2 = strrchr(filename, '>');
-       if (sp1 == NULL) sp1 = sp2;
-       if (sp2 != NULL && sp2 > sp1) sp1 = sp2;
-       if (sp1 == NULL) sp1 = strrchr(filename, ':');
-       if (sp1 == NULL)
-               sp1 = filename;
-       else
-               sp1++;          /* The byte after the found character */
-       /* Now, let's see if there's a type, and save the position in sp2 */
-       sp2 = strchr(sp1, '.');
-       /* If we found it, that's where we'll cut.  Otherwise, look for a
-          version number and save the position in sp2 */
-       if (sp2 == NULL) sp2 = strchr(sp1, ';');
-       /* If there was still nothing to find, set sp2 to point at the end of
-          the string */
-       if (sp2 == NULL) sp2 = sp1 + strlen(sp1);
-
-       /* Check that we won't get buffer overflows */
-       if (sp2 - sp1 > FILENAME_MAX
-               || (sp1 - filename) + strlen(sp2) > FILENAME_MAX)
-               {
-               DSOerr(DSO_F_VMS_LOAD,DSO_R_FILENAME_TOO_BIG);
-               goto err;
-               }
-
-       p = (DSO_VMS_INTERNAL *)OPENSSL_malloc(sizeof(DSO_VMS_INTERNAL));
-       if(p == NULL)
-               {
-               DSOerr(DSO_F_VMS_LOAD,ERR_R_MALLOC_FAILURE);
-               goto err;
-               }
-
-       strncpy(p->filename, sp1, sp2-sp1);
-       p->filename[sp2-sp1] = '\0';
-
-       strncpy(p->imagename, filename, sp1-filename);
-       p->imagename[sp1-filename] = '\0';
-       strcat(p->imagename, sp2);
-
-       p->filename_dsc.dsc$w_length = strlen(p->filename);
-       p->filename_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
-       p->filename_dsc.dsc$b_class = DSC$K_CLASS_S;
-       p->filename_dsc.dsc$a_pointer = p->filename;
-       p->imagename_dsc.dsc$w_length = strlen(p->imagename);
-       p->imagename_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
-       p->imagename_dsc.dsc$b_class = DSC$K_CLASS_S;
-       p->imagename_dsc.dsc$a_pointer = p->imagename;
-
-       if(!sk_push(dso->meth_data, (char *)p))
-               {
-               DSOerr(DSO_F_VMS_LOAD,DSO_R_STACK_ERROR);
-               goto err;
-               }
-
-       /* Success (for now, we lie.  We actually do not know...) */
-       dso->loaded_filename = filename;
-       return(1);
-err:
-       /* Cleanup! */
-       if(p != NULL)
-               OPENSSL_free(p);
-       if(filename != NULL)
-               OPENSSL_free(filename);
-       return(0);
-       }
-
-/* Note that this doesn't actually unload the shared image, as there is no
+{
+    void *ptr = NULL;
+    /* See applicable comments in dso_dl.c */
+    char *filename = DSO_convert_filename(dso, NULL);
+
+/* Ensure 32-bit pointer for "p", and appropriate malloc() function. */
+# if __INITIAL_POINTER_SIZE == 64
+#  define DSO_MALLOC _malloc32
+#  pragma pointer_size save
+#  pragma pointer_size 32
+# else                          /* __INITIAL_POINTER_SIZE == 64 */
+#  define DSO_MALLOC OPENSSL_malloc
+# endif                         /* __INITIAL_POINTER_SIZE == 64 [else] */
+
+    DSO_VMS_INTERNAL *p = NULL;
+
+# if __INITIAL_POINTER_SIZE == 64
+#  pragma pointer_size restore
+# endif                         /* __INITIAL_POINTER_SIZE == 64 */
+
+    const char *sp1, *sp2;      /* Search result */
+    const char *ext = NULL;     /* possible extension to add */
+
+    if (filename == NULL) {
+        DSOerr(DSO_F_VMS_LOAD, DSO_R_NO_FILENAME);
+        goto err;
+    }
+
+    /*-
+     * A file specification may look like this:
+     *
+     *      node::dev:[dir-spec]name.type;ver
+     *
+     * or (for compatibility with TOPS-20):
+     *
+     *      node::dev:<dir-spec>name.type;ver
+     *
+     * and the dir-spec uses '.' as separator.  Also, a dir-spec
+     * may consist of several parts, with mixed use of [] and <>:
+     *
+     *      [dir1.]<dir2>
+     *
+     * We need to split the file specification into the name and
+     * the rest (both before and after the name itself).
+     */
+    /*
+     * Start with trying to find the end of a dir-spec, and save the position
+     * of the byte after in sp1
+     */
+    sp1 = strrchr(filename, ']');
+    sp2 = strrchr(filename, '>');
+    if (sp1 == NULL)
+        sp1 = sp2;
+    if (sp2 != NULL && sp2 > sp1)
+        sp1 = sp2;
+    if (sp1 == NULL)
+        sp1 = strrchr(filename, ':');
+    if (sp1 == NULL)
+        sp1 = filename;
+    else
+        sp1++;                  /* The byte after the found character */
+    /* Now, let's see if there's a type, and save the position in sp2 */
+    sp2 = strchr(sp1, '.');
+    /*
+     * If there is a period and the next character is a semi-colon,
+     * we need to add an extension
+     */
+    if (sp2 != NULL && sp2[1] == ';')
+        ext = ".EXE";
+    /*
+     * If we found it, that's where we'll cut.  Otherwise, look for a version
+     * number and save the position in sp2
+     */
+    if (sp2 == NULL) {
+        sp2 = strchr(sp1, ';');
+        ext = ".EXE";
+    }
+    /*
+     * If there was still nothing to find, set sp2 to point at the end of the
+     * string
+     */
+    if (sp2 == NULL)
+        sp2 = sp1 + strlen(sp1);
+
+    /* Check that we won't get buffer overflows */
+    if (sp2 - sp1 > FILENAME_MAX
+        || (sp1 - filename) + strlen(sp2) > FILENAME_MAX) {
+        DSOerr(DSO_F_VMS_LOAD, DSO_R_FILENAME_TOO_BIG);
+        goto err;
+    }
+
+    p = DSO_MALLOC(sizeof(*p));
+    if (p == NULL) {
+        DSOerr(DSO_F_VMS_LOAD, ERR_R_MALLOC_FAILURE);
+        goto err;
+    }
+
+    strncpy(p->filename, sp1, sp2 - sp1);
+    p->filename[sp2 - sp1] = '\0';
+
+    strncpy(p->imagename, filename, sp1 - filename);
+    p->imagename[sp1 - filename] = '\0';
+    if (ext) {
+        strcat(p->imagename, ext);
+        if (*sp2 == '.')
+            sp2++;
+    }
+    strcat(p->imagename, sp2);
+
+    p->filename_dsc.dsc$w_length = strlen(p->filename);
+    p->filename_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
+    p->filename_dsc.dsc$b_class = DSC$K_CLASS_S;
+    p->filename_dsc.dsc$a_pointer = p->filename;
+    p->imagename_dsc.dsc$w_length = strlen(p->imagename);
+    p->imagename_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
+    p->imagename_dsc.dsc$b_class = DSC$K_CLASS_S;
+    p->imagename_dsc.dsc$a_pointer = p->imagename;
+
+    if (!sk_void_push(dso->meth_data, (char *)p)) {
+        DSOerr(DSO_F_VMS_LOAD, DSO_R_STACK_ERROR);
+        goto err;
+    }
+
+    /* Success (for now, we lie.  We actually do not know...) */
+    dso->loaded_filename = filename;
+    return (1);
+ err:
+    /* Cleanup! */
+    OPENSSL_free(p);
+    OPENSSL_free(filename);
+    return (0);
+}
+
+/*
+ * Note that this doesn't actually unload the shared image, as there is no
  * such thing in VMS.  Next time it get loaded again, a new copy will
  * actually be loaded.
  */
 static int vms_unload(DSO *dso)
-       {
-       DSO_VMS_INTERNAL *p;
-       if(dso == NULL)
-               {
-               DSOerr(DSO_F_VMS_UNLOAD,ERR_R_PASSED_NULL_PARAMETER);
-               return(0);
-               }
-       if(sk_num(dso->meth_data) < 1)
-               return(1);
-       p = (DSO_VMS_INTERNAL *)sk_pop(dso->meth_data);
-       if(p == NULL)
-               {
-               DSOerr(DSO_F_VMS_UNLOAD,DSO_R_NULL_HANDLE);
-               return(0);
-               }
-       /* Cleanup */
-       OPENSSL_free(p);
-       return(1);
-       }
-
-/* We must do this in a separate function because of the way the exception
  handler works (it makes this function return */
+{
+    DSO_VMS_INTERNAL *p;
+    if (dso == NULL) {
+        DSOerr(DSO_F_VMS_UNLOAD, ERR_R_PASSED_NULL_PARAMETER);
+        return (0);
+    }
+    if (sk_void_num(dso->meth_data) < 1)
+        return (1);
+    p = (DSO_VMS_INTERNAL *)sk_void_pop(dso->meth_data);
+    if (p == NULL) {
+        DSOerr(DSO_F_VMS_UNLOAD, DSO_R_NULL_HANDLE);
+        return (0);
+    }
+    /* Cleanup */
+    OPENSSL_free(p);
+    return (1);
+}
+
+/*
+ * We must do this in a separate function because of the way the exception
+ * handler works (it makes this function return
+ */
 static int do_find_symbol(DSO_VMS_INTERNAL *ptr,
-       struct dsc$descriptor_s *symname_dsc, void **sym,
-       unsigned long flags)
-       {
-       /* Make sure that signals are caught and returned instead of
-          aborting the program.  The exception handler gets unestablished
-          automatically on return from this function.  */
-       lib$establish(lib$sig_to_ret);
-
-       if(ptr->imagename_dsc.dsc$w_length)
-               return lib$find_image_symbol(&ptr->filename_dsc,
-                       symname_dsc, sym,
-                       &ptr->imagename_dsc, flags);
-       else
-               return lib$find_image_symbol(&ptr->filename_dsc,
-                       symname_dsc, sym,
-                       0, flags);
-       }
-
+                          struct dsc$descriptor_s *symname_dsc, void **sym,
+                          unsigned long flags)
+{
+    /*
+     * Make sure that signals are caught and returned instead of aborting the
+     * program.  The exception handler gets unestablished automatically on
+     * return from this function.
+     */
+    lib$establish(lib$sig_to_ret);
+
+    if (ptr->imagename_dsc.dsc$w_length)
+        return lib$find_image_symbol(&ptr->filename_dsc,
+                                     symname_dsc, sym,
+                                     &ptr->imagename_dsc, flags);
+    else
+        return lib$find_image_symbol(&ptr->filename_dsc,
+                                     symname_dsc, sym, 0, flags);
+}
+
+# ifndef LIB$M_FIS_MIXEDCASE
+#  define LIB$M_FIS_MIXEDCASE (1 << 4);
+# endif
 void vms_bind_sym(DSO *dso, const char *symname, void **sym)
-       {
-       DSO_VMS_INTERNAL *ptr;
-       int status;
-       int flags = LIB$M_FIS_MIXEDCASE;
-       struct dsc$descriptor_s symname_dsc;
-       *sym = NULL;
-
-       symname_dsc.dsc$w_length = strlen(symname);
-       symname_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
-       symname_dsc.dsc$b_class = DSC$K_CLASS_S;
-       symname_dsc.dsc$a_pointer = (char *)symname; /* The cast is needed */
-
-       if((dso == NULL) || (symname == NULL))
-               {
-               DSOerr(DSO_F_VMS_BIND_VAR,ERR_R_PASSED_NULL_PARAMETER);
-               return;
-               }
-       if(sk_num(dso->meth_data) < 1)
-               {
-               DSOerr(DSO_F_VMS_BIND_VAR,DSO_R_STACK_ERROR);
-               return;
-               }
-       ptr = (DSO_VMS_INTERNAL *)sk_value(dso->meth_data,
-               sk_num(dso->meth_data) - 1);
-       if(ptr == NULL)
-               {
-               DSOerr(DSO_F_VMS_BIND_VAR,DSO_R_NULL_HANDLE);
-               return;
-               }
-
-       if(dso->flags & DSO_FLAG_UPCASE_SYMBOL) flags = 0;
-
-       status = do_find_symbol(ptr, &symname_dsc, sym, flags);
-
-       if(!$VMS_STATUS_SUCCESS(status))
-               {
-               unsigned short length;
-               char errstring[257];
-               struct dsc$descriptor_s errstring_dsc;
-
-               errstring_dsc.dsc$w_length = sizeof(errstring);
-               errstring_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
-               errstring_dsc.dsc$b_class = DSC$K_CLASS_S;
-               errstring_dsc.dsc$a_pointer = errstring;
-
-               *sym = NULL;
-
-               status = sys$getmsg(status, &length, &errstring_dsc, 1, 0);
-
-               if (!$VMS_STATUS_SUCCESS(status))
-                       lib$signal(status); /* This is really bad.  Abort!  */
-               else
-                       {
-                       errstring[length] = '\0';
-
-                       DSOerr(DSO_F_VMS_BIND_VAR,DSO_R_SYM_FAILURE);
-                       if (ptr->imagename_dsc.dsc$w_length)
-                               ERR_add_error_data(9,
-                                       "Symbol ", symname,
-                                       " in ", ptr->filename,
-                                       " (", ptr->imagename, ")",
-                                       ": ", errstring);
-                       else
-                               ERR_add_error_data(6,
-                                       "Symbol ", symname,
-                                       " in ", ptr->filename,
-                                       ": ", errstring);
-                       }
-               return;
-               }
-       return;
-       }
-
-static void *vms_bind_var(DSO *dso, const char *symname)
-       {
-       void *sym = 0;
-       vms_bind_sym(dso, symname, &sym);
-       return sym;
-       }
+{
+    DSO_VMS_INTERNAL *ptr;
+    int status = 0;
+    struct dsc$descriptor_s symname_dsc;
+
+/* Arrange 32-bit pointer to (copied) string storage, if needed. */
+# if __INITIAL_POINTER_SIZE == 64
+#  define SYMNAME symname_32p
+#  pragma pointer_size save
+#  pragma pointer_size 32
+    char *symname_32p;
+#  pragma pointer_size restore
+    char symname_32[NAMX_MAXRSS + 1];
+# else                          /* __INITIAL_POINTER_SIZE == 64 */
+#  define SYMNAME ((char *) symname)
+# endif                         /* __INITIAL_POINTER_SIZE == 64 [else] */
+
+    *sym = NULL;
+
+    if ((dso == NULL) || (symname == NULL)) {
+        DSOerr(DSO_F_VMS_BIND_SYM, ERR_R_PASSED_NULL_PARAMETER);
+        return;
+    }
+# if __INITIAL_POINTER_SIZE == 64
+    /* Copy the symbol name to storage with a 32-bit pointer. */
+    symname_32p = symname_32;
+    strcpy(symname_32p, symname);
+# endif                         /* __INITIAL_POINTER_SIZE == 64 [else] */
+
+    symname_dsc.dsc$w_length = strlen(SYMNAME);
+    symname_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
+    symname_dsc.dsc$b_class = DSC$K_CLASS_S;
+    symname_dsc.dsc$a_pointer = SYMNAME;
+
+    if (sk_void_num(dso->meth_data) < 1) {
+        DSOerr(DSO_F_VMS_BIND_SYM, DSO_R_STACK_ERROR);
+        return;
+    }
+    ptr = (DSO_VMS_INTERNAL *)sk_void_value(dso->meth_data,
+                                            sk_void_num(dso->meth_data) - 1);
+    if (ptr == NULL) {
+        DSOerr(DSO_F_VMS_BIND_SYM, DSO_R_NULL_HANDLE);
+        return;
+    }
+
+    status = do_find_symbol(ptr, &symname_dsc, sym, LIB$M_FIS_MIXEDCASE);
+
+    if (!$VMS_STATUS_SUCCESS(status))
+        status = do_find_symbol(ptr, &symname_dsc, sym, 0);
+
+    if (!$VMS_STATUS_SUCCESS(status)) {
+        unsigned short length;
+        char errstring[257];
+        struct dsc$descriptor_s errstring_dsc;
+
+        errstring_dsc.dsc$w_length = sizeof(errstring);
+        errstring_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
+        errstring_dsc.dsc$b_class = DSC$K_CLASS_S;
+        errstring_dsc.dsc$a_pointer = errstring;
+
+        *sym = NULL;
+
+        status = sys$getmsg(status, &length, &errstring_dsc, 1, 0);
+
+        if (!$VMS_STATUS_SUCCESS(status))
+            lib$signal(status); /* This is really bad.  Abort! */
+        else {
+            errstring[length] = '\0';
+
+            DSOerr(DSO_F_VMS_BIND_SYM, DSO_R_SYM_FAILURE);
+            if (ptr->imagename_dsc.dsc$w_length)
+                ERR_add_error_data(9,
+                                   "Symbol ", symname,
+                                   " in ", ptr->filename,
+                                   " (", ptr->imagename, ")",
+                                   ": ", errstring);
+            else
+                ERR_add_error_data(6,
+                                   "Symbol ", symname,
+                                   " in ", ptr->filename, ": ", errstring);
+        }
+        return;
+    }
+    return;
+}
 
 static DSO_FUNC_TYPE vms_bind_func(DSO *dso, const char *symname)
-       {
-       DSO_FUNC_TYPE sym = 0;
-       vms_bind_sym(dso, symname, (void **)&sym);
-       return sym;
-       }
+{
+    DSO_FUNC_TYPE sym = 0;
+    vms_bind_sym(dso, symname, (void **)&sym);
+    return sym;
+}
+
+static char *vms_merger(DSO *dso, const char *filespec1,
+                        const char *filespec2)
+{
+    int status;
+    int filespec1len, filespec2len;
+    struct FAB fab;
+    struct NAMX_STRUCT nam;
+    char esa[NAMX_MAXRSS + 1];
+    char *merged;
+
+/* Arrange 32-bit pointer to (copied) string storage, if needed. */
+# if __INITIAL_POINTER_SIZE == 64
+#  define FILESPEC1 filespec1_32p;
+#  define FILESPEC2 filespec2_32p;
+#  pragma pointer_size save
+#  pragma pointer_size 32
+    char *filespec1_32p;
+    char *filespec2_32p;
+#  pragma pointer_size restore
+    char filespec1_32[NAMX_MAXRSS + 1];
+    char filespec2_32[NAMX_MAXRSS + 1];
+# else                          /* __INITIAL_POINTER_SIZE == 64 */
+#  define FILESPEC1 ((char *) filespec1)
+#  define FILESPEC2 ((char *) filespec2)
+# endif                         /* __INITIAL_POINTER_SIZE == 64 [else] */
+
+    if (!filespec1)
+        filespec1 = "";
+    if (!filespec2)
+        filespec2 = "";
+    filespec1len = strlen(filespec1);
+    filespec2len = strlen(filespec2);
+
+# if __INITIAL_POINTER_SIZE == 64
+    /* Copy the file names to storage with a 32-bit pointer. */
+    filespec1_32p = filespec1_32;
+    filespec2_32p = filespec2_32;
+    strcpy(filespec1_32p, filespec1);
+    strcpy(filespec2_32p, filespec2);
+# endif                         /* __INITIAL_POINTER_SIZE == 64 [else] */
+
+    fab = cc$rms_fab;
+    nam = CC_RMS_NAMX;
+
+    FAB_OR_NAML(fab, nam).FAB_OR_NAML_FNA = FILESPEC1;
+    FAB_OR_NAML(fab, nam).FAB_OR_NAML_FNS = filespec1len;
+    FAB_OR_NAML(fab, nam).FAB_OR_NAML_DNA = FILESPEC2;
+    FAB_OR_NAML(fab, nam).FAB_OR_NAML_DNS = filespec2len;
+    NAMX_DNA_FNA_SET(fab)
+
+        nam.NAMX_ESA = esa;
+    nam.NAMX_ESS = NAMX_MAXRSS;
+    nam.NAMX_NOP = NAM$M_SYNCHK | NAM$M_PWD;
+    SET_NAMX_NO_SHORT_UPCASE(nam);
+
+    fab.FAB_NAMX = &nam;
+
+    status = sys$parse(&fab, 0, 0);
+
+    if (!$VMS_STATUS_SUCCESS(status)) {
+        unsigned short length;
+        char errstring[257];
+        struct dsc$descriptor_s errstring_dsc;
+
+        errstring_dsc.dsc$w_length = sizeof(errstring);
+        errstring_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
+        errstring_dsc.dsc$b_class = DSC$K_CLASS_S;
+        errstring_dsc.dsc$a_pointer = errstring;
+
+        status = sys$getmsg(status, &length, &errstring_dsc, 1, 0);
+
+        if (!$VMS_STATUS_SUCCESS(status))
+            lib$signal(status); /* This is really bad.  Abort! */
+        else {
+            errstring[length] = '\0';
+
+            DSOerr(DSO_F_VMS_MERGER, DSO_R_FAILURE);
+            ERR_add_error_data(7,
+                               "filespec \"", filespec1, "\", ",
+                               "defaults \"", filespec2, "\": ", errstring);
+        }
+        return (NULL);
+    }
+
+    merged = OPENSSL_malloc(nam.NAMX_ESL + 1);
+    if (merged == NULL)
+        goto malloc_err;
+    strncpy(merged, nam.NAMX_ESA, nam.NAMX_ESL);
+    merged[nam.NAMX_ESL] = '\0';
+    return (merged);
+ malloc_err:
+    DSOerr(DSO_F_VMS_MERGER, ERR_R_MALLOC_FAILURE);
+}
 
 static char *vms_name_converter(DSO *dso, const char *filename)
-       {
-       return(filename);
-       }
-
-#endif /* VMS */
+{
+    int len = strlen(filename);
+    char *not_translated = OPENSSL_malloc(len + 1);
+    if (not_translated != NULL)
+        strcpy(not_translated, filename);
+    return (not_translated);
+}
+
+#endif                          /* OPENSSL_SYS_VMS */