504 lines
14 KiB
C
504 lines
14 KiB
C
/* dso_vms.c -*- mode:C; c-file-style: "eay" -*- */
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/* Written by Richard Levitte (richard@levitte.org) for the OpenSSL
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* project 2000.
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*/
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/* ====================================================================
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* Copyright (c) 2000 The OpenSSL Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* licensing@OpenSSL.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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* This product includes cryptographic software written by Eric Young
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* (eay@cryptsoft.com). This product includes software written by Tim
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* Hudson (tjh@cryptsoft.com).
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*
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*/
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#include <stdio.h>
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#include <string.h>
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#include <errno.h>
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#include "cryptlib.h"
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#include <openssl/dso.h>
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#ifdef OPENSSL_SYS_VMS
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#pragma message disable DOLLARID
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#include <rms.h>
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#include <lib$routines.h>
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#include <stsdef.h>
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#include <descrip.h>
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#include <starlet.h>
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#endif
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#ifndef OPENSSL_SYS_VMS
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DSO_METHOD *DSO_METHOD_vms(void)
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{
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return NULL;
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}
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#else
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#pragma message disable DOLLARID
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static int vms_load(DSO *dso);
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static int vms_unload(DSO *dso);
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static void *vms_bind_var(DSO *dso, const char *symname);
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static DSO_FUNC_TYPE vms_bind_func(DSO *dso, const char *symname);
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#if 0
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static int vms_unbind_var(DSO *dso, char *symname, void *symptr);
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static int vms_unbind_func(DSO *dso, char *symname, DSO_FUNC_TYPE symptr);
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static int vms_init(DSO *dso);
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static int vms_finish(DSO *dso);
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static long vms_ctrl(DSO *dso, int cmd, long larg, void *parg);
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#endif
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static char *vms_name_converter(DSO *dso, const char *filename);
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static char *vms_merger(DSO *dso, const char *filespec1,
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const char *filespec2);
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static DSO_METHOD dso_meth_vms = {
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"OpenSSL 'VMS' shared library method",
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vms_load,
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NULL, /* unload */
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vms_bind_var,
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vms_bind_func,
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/* For now, "unbind" doesn't exist */
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#if 0
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NULL, /* unbind_var */
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NULL, /* unbind_func */
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#endif
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NULL, /* ctrl */
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vms_name_converter,
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vms_merger,
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NULL, /* init */
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NULL /* finish */
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};
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/* On VMS, the only "handle" is the file name. LIB$FIND_IMAGE_SYMBOL depends
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* on the reference to the file name being the same for all calls regarding
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* one shared image, so we'll just store it in an instance of the following
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* structure and put a pointer to that instance in the meth_data stack.
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*/
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typedef struct dso_internal_st
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{
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/* This should contain the name only, no directory,
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* no extension, nothing but a name. */
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struct dsc$descriptor_s filename_dsc;
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char filename[FILENAME_MAX+1];
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/* This contains whatever is not in filename, if needed.
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* Normally not defined. */
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struct dsc$descriptor_s imagename_dsc;
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char imagename[FILENAME_MAX+1];
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} DSO_VMS_INTERNAL;
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DSO_METHOD *DSO_METHOD_vms(void)
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{
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return(&dso_meth_vms);
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}
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static int vms_load(DSO *dso)
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{
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void *ptr = NULL;
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/* See applicable comments in dso_dl.c */
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char *filename = DSO_convert_filename(dso, NULL);
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DSO_VMS_INTERNAL *p;
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const char *sp1, *sp2; /* Search result */
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if(filename == NULL)
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{
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DSOerr(DSO_F_DLFCN_LOAD,DSO_R_NO_FILENAME);
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goto err;
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}
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/* A file specification may look like this:
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*
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* node::dev:[dir-spec]name.type;ver
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*
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* or (for compatibility with TOPS-20):
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*
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* node::dev:<dir-spec>name.type;ver
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*
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* and the dir-spec uses '.' as separator. Also, a dir-spec
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* may consist of several parts, with mixed use of [] and <>:
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*
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* [dir1.]<dir2>
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*
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* We need to split the file specification into the name and
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* the rest (both before and after the name itself).
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*/
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/* Start with trying to find the end of a dir-spec, and save the
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position of the byte after in sp1 */
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sp1 = strrchr(filename, ']');
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sp2 = strrchr(filename, '>');
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if (sp1 == NULL) sp1 = sp2;
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if (sp2 != NULL && sp2 > sp1) sp1 = sp2;
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if (sp1 == NULL) sp1 = strrchr(filename, ':');
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if (sp1 == NULL)
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sp1 = filename;
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else
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sp1++; /* The byte after the found character */
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/* Now, let's see if there's a type, and save the position in sp2 */
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sp2 = strchr(sp1, '.');
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/* If we found it, that's where we'll cut. Otherwise, look for a
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version number and save the position in sp2 */
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if (sp2 == NULL) sp2 = strchr(sp1, ';');
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/* If there was still nothing to find, set sp2 to point at the end of
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the string */
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if (sp2 == NULL) sp2 = sp1 + strlen(sp1);
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/* Check that we won't get buffer overflows */
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if (sp2 - sp1 > FILENAME_MAX
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|| (sp1 - filename) + strlen(sp2) > FILENAME_MAX)
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{
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DSOerr(DSO_F_VMS_LOAD,DSO_R_FILENAME_TOO_BIG);
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goto err;
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}
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p = (DSO_VMS_INTERNAL *)OPENSSL_malloc(sizeof(DSO_VMS_INTERNAL));
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if(p == NULL)
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{
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DSOerr(DSO_F_VMS_LOAD,ERR_R_MALLOC_FAILURE);
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goto err;
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}
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strncpy(p->filename, sp1, sp2-sp1);
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p->filename[sp2-sp1] = '\0';
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strncpy(p->imagename, filename, sp1-filename);
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p->imagename[sp1-filename] = '\0';
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strcat(p->imagename, sp2);
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p->filename_dsc.dsc$w_length = strlen(p->filename);
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p->filename_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
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p->filename_dsc.dsc$b_class = DSC$K_CLASS_S;
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p->filename_dsc.dsc$a_pointer = p->filename;
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p->imagename_dsc.dsc$w_length = strlen(p->imagename);
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p->imagename_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
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p->imagename_dsc.dsc$b_class = DSC$K_CLASS_S;
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p->imagename_dsc.dsc$a_pointer = p->imagename;
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if(!sk_push(dso->meth_data, (char *)p))
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{
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DSOerr(DSO_F_VMS_LOAD,DSO_R_STACK_ERROR);
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goto err;
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}
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/* Success (for now, we lie. We actually do not know...) */
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dso->loaded_filename = filename;
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return(1);
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err:
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/* Cleanup! */
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if(p != NULL)
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OPENSSL_free(p);
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if(filename != NULL)
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OPENSSL_free(filename);
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return(0);
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}
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/* Note that this doesn't actually unload the shared image, as there is no
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* such thing in VMS. Next time it get loaded again, a new copy will
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* actually be loaded.
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*/
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static int vms_unload(DSO *dso)
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{
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DSO_VMS_INTERNAL *p;
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if(dso == NULL)
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{
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DSOerr(DSO_F_VMS_UNLOAD,ERR_R_PASSED_NULL_PARAMETER);
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return(0);
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}
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if(sk_num(dso->meth_data) < 1)
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return(1);
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p = (DSO_VMS_INTERNAL *)sk_pop(dso->meth_data);
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if(p == NULL)
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{
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DSOerr(DSO_F_VMS_UNLOAD,DSO_R_NULL_HANDLE);
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return(0);
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}
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/* Cleanup */
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OPENSSL_free(p);
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return(1);
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}
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/* We must do this in a separate function because of the way the exception
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handler works (it makes this function return */
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static int do_find_symbol(DSO_VMS_INTERNAL *ptr,
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struct dsc$descriptor_s *symname_dsc, void **sym,
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unsigned long flags)
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{
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/* Make sure that signals are caught and returned instead of
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aborting the program. The exception handler gets unestablished
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automatically on return from this function. */
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lib$establish(lib$sig_to_ret);
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if(ptr->imagename_dsc.dsc$w_length)
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return lib$find_image_symbol(&ptr->filename_dsc,
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symname_dsc, sym,
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&ptr->imagename_dsc, flags);
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else
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return lib$find_image_symbol(&ptr->filename_dsc,
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symname_dsc, sym,
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0, flags);
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}
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void vms_bind_sym(DSO *dso, const char *symname, void **sym)
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{
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DSO_VMS_INTERNAL *ptr;
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int status;
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#if 0
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int flags = (1<<4); /* LIB$M_FIS_MIXEDCASE, but this symbol isn't
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defined in VMS older than 7.0 or so */
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#else
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int flags = 0;
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#endif
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struct dsc$descriptor_s symname_dsc;
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*sym = NULL;
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symname_dsc.dsc$w_length = strlen(symname);
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symname_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
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symname_dsc.dsc$b_class = DSC$K_CLASS_S;
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symname_dsc.dsc$a_pointer = (char *)symname; /* The cast is needed */
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if((dso == NULL) || (symname == NULL))
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{
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DSOerr(DSO_F_VMS_BIND_VAR,ERR_R_PASSED_NULL_PARAMETER);
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return;
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}
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if(sk_num(dso->meth_data) < 1)
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{
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DSOerr(DSO_F_VMS_BIND_VAR,DSO_R_STACK_ERROR);
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return;
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}
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ptr = (DSO_VMS_INTERNAL *)sk_value(dso->meth_data,
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sk_num(dso->meth_data) - 1);
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if(ptr == NULL)
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{
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DSOerr(DSO_F_VMS_BIND_VAR,DSO_R_NULL_HANDLE);
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return;
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}
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if(dso->flags & DSO_FLAG_UPCASE_SYMBOL) flags = 0;
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status = do_find_symbol(ptr, &symname_dsc, sym, flags);
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if(!$VMS_STATUS_SUCCESS(status))
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{
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unsigned short length;
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char errstring[257];
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struct dsc$descriptor_s errstring_dsc;
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errstring_dsc.dsc$w_length = sizeof(errstring);
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errstring_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
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errstring_dsc.dsc$b_class = DSC$K_CLASS_S;
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errstring_dsc.dsc$a_pointer = errstring;
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*sym = NULL;
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status = sys$getmsg(status, &length, &errstring_dsc, 1, 0);
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if (!$VMS_STATUS_SUCCESS(status))
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lib$signal(status); /* This is really bad. Abort! */
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else
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{
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errstring[length] = '\0';
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DSOerr(DSO_F_VMS_BIND_VAR,DSO_R_SYM_FAILURE);
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if (ptr->imagename_dsc.dsc$w_length)
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ERR_add_error_data(9,
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"Symbol ", symname,
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" in ", ptr->filename,
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" (", ptr->imagename, ")",
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": ", errstring);
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else
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ERR_add_error_data(6,
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"Symbol ", symname,
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" in ", ptr->filename,
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": ", errstring);
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}
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return;
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}
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return;
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}
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static void *vms_bind_var(DSO *dso, const char *symname)
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{
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void *sym = 0;
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vms_bind_sym(dso, symname, &sym);
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return sym;
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}
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static DSO_FUNC_TYPE vms_bind_func(DSO *dso, const char *symname)
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{
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DSO_FUNC_TYPE sym = 0;
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vms_bind_sym(dso, symname, (void **)&sym);
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return sym;
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}
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static char *vms_merger(DSO *dso, const char *filespec1, const char *filespec2)
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{
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int status;
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int filespec1len, filespec2len;
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struct FAB fab;
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#ifdef NAML$C_MAXRSS
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struct NAML nam;
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char esa[NAML$C_MAXRSS];
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#else
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struct NAM nam;
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char esa[NAM$C_MAXRSS];
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#endif
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char *merged;
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if (!filespec1) filespec1 = "";
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if (!filespec2) filespec2 = "";
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filespec1len = strlen(filespec1);
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filespec2len = strlen(filespec2);
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fab = cc$rms_fab;
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#ifdef NAML$C_MAXRSS
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nam = cc$rms_naml;
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#else
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nam = cc$rms_nam;
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#endif
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fab.fab$l_fna = (char *)filespec1;
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fab.fab$b_fns = filespec1len;
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fab.fab$l_dna = (char *)filespec2;
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fab.fab$b_dns = filespec2len;
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#ifdef NAML$C_MAXRSS
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if (filespec1len > NAM$C_MAXRSS)
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{
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fab.fab$l_fna = 0;
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fab.fab$b_fns = 0;
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nam.naml$l_long_filename = (char *)filespec1;
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nam.naml$l_long_filename_size = filespec1len;
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}
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if (filespec2len > NAM$C_MAXRSS)
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{
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fab.fab$l_dna = 0;
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fab.fab$b_dns = 0;
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nam.naml$l_long_defname = (char *)filespec2;
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nam.naml$l_long_defname_size = filespec2len;
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}
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nam.naml$l_esa = esa;
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nam.naml$b_ess = NAM$C_MAXRSS;
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nam.naml$l_long_expand = esa;
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nam.naml$l_long_expand_alloc = sizeof(esa);
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nam.naml$b_nop = NAM$M_SYNCHK | NAM$M_PWD;
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nam.naml$v_no_short_upcase = 1;
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fab.fab$l_naml = &nam;
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#else
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nam.nam$l_esa = esa;
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nam.nam$b_ess = NAM$C_MAXRSS;
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nam.nam$b_nop = NAM$M_SYNCHK | NAM$M_PWD;
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fab.fab$l_nam = &nam;
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#endif
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status = sys$parse(&fab, 0, 0);
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if(!$VMS_STATUS_SUCCESS(status))
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{
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unsigned short length;
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char errstring[257];
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struct dsc$descriptor_s errstring_dsc;
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errstring_dsc.dsc$w_length = sizeof(errstring);
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errstring_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
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errstring_dsc.dsc$b_class = DSC$K_CLASS_S;
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errstring_dsc.dsc$a_pointer = errstring;
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status = sys$getmsg(status, &length, &errstring_dsc, 1, 0);
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if (!$VMS_STATUS_SUCCESS(status))
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lib$signal(status); /* This is really bad. Abort! */
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else
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{
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errstring[length] = '\0';
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DSOerr(DSO_F_VMS_MERGER,DSO_R_FAILURE);
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ERR_add_error_data(7,
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"filespec \"", filespec1, "\", ",
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"defaults \"", filespec2, "\": ",
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errstring);
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}
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return(NULL);
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}
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#ifdef NAML$C_MAXRSS
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if (nam.naml$l_long_expand_size)
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{
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merged = OPENSSL_malloc(nam.naml$l_long_expand_size + 1);
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if(!merged)
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goto malloc_err;
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strncpy(merged, nam.naml$l_long_expand,
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nam.naml$l_long_expand_size);
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merged[nam.naml$l_long_expand_size] = '\0';
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}
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else
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{
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merged = OPENSSL_malloc(nam.naml$b_esl + 1);
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if(!merged)
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goto malloc_err;
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strncpy(merged, nam.naml$l_esa,
|
|
nam.naml$b_esl);
|
|
merged[nam.naml$b_esl] = '\0';
|
|
}
|
|
#else
|
|
merged = OPENSSL_malloc(nam.nam$b_esl + 1);
|
|
if(!merged)
|
|
goto malloc_err;
|
|
strncpy(merged, nam.nam$l_esa,
|
|
nam.nam$b_esl);
|
|
merged[nam.nam$b_esl] = '\0';
|
|
#endif
|
|
return(merged);
|
|
malloc_err:
|
|
DSOerr(DSO_F_VMS_MERGER,
|
|
ERR_R_MALLOC_FAILURE);
|
|
}
|
|
|
|
static char *vms_name_converter(DSO *dso, const char *filename)
|
|
{
|
|
int len = strlen(filename);
|
|
char *not_translated = OPENSSL_malloc(len+1);
|
|
strcpy(not_translated,filename);
|
|
return(not_translated);
|
|
}
|
|
|
|
#endif /* OPENSSL_SYS_VMS */
|