/* dso_vms.c -*- mode:C; c-file-style: "eay" -*- */
/* Written by Richard Levitte ([email protected]) 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
* [email protected].
*
* 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
* ([email protected]). This product includes software written by Tim
* Hudson ([email protected]).
*
*/
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include "cryptlib.h"
#include <openssl/dso.h>
#ifdef OPENSSL_SYS_VMS
#pragma message disable DOLLARID
#include <rms.h>
#include <lib$routines.h>
#include <stsdef.h>
#include <descrip.h>
#include <starlet.h>
#endif
#ifndef OPENSSL_SYS_VMS
DSO_METHOD *DSO_METHOD_vms(void)
{
return NULL;
}
#else
#pragma message disable DOLLARID
static int vms_load(DSO *dso);
static int vms_unload(DSO *dso);
static void *vms_bind_var(DSO *dso, const char *symname);
static DSO_FUNC_TYPE vms_bind_func(DSO *dso, const char *symname);
#if 0
static int vms_unbind_var(DSO *dso, char *symname, void *symptr);
static int vms_unbind_func(DSO *dso, char *symname, DSO_FUNC_TYPE symptr);
static int vms_init(DSO *dso);
static int vms_finish(DSO *dso);
static long vms_ctrl(DSO *dso, int cmd, long larg, void *parg);
#endif
static char *vms_name_converter(DSO *dso, const char *filename);
static char *vms_merger(DSO *dso, const char *filespec1,
const char *filespec2);
static DSO_METHOD dso_meth_vms = {
"OpenSSL 'VMS' shared library method",
vms_load,
NULL, /* unload */
vms_bind_var,
vms_bind_func,
/* For now, "unbind" doesn't exist */
#if 0
NULL, /* unbind_var */
NULL, /* unbind_func */
#endif
NULL, /* ctrl */
vms_name_converter,
vms_merger,
NULL, /* init */
NULL /* finish */
};
/* On VMS, the only "handle" is the file name. LIB$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);
}
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_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 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
* 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 */
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);
}
void vms_bind_sym(DSO *dso, const char *symname, void **sym)
{
DSO_VMS_INTERNAL *ptr;
int status;
#if 0
int flags = (1<<4); /* LIB$M_FIS_MIXEDCASE, but this symbol isn't
defined in VMS older than 7.0 or so */
#else
int flags = 0;
#endif
struct dsc$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_SYM,ERR_R_PASSED_NULL_PARAMETER);
return;
}
if(sk_num(dso->meth_data) < 1)
{
DSOerr(DSO_F_VMS_BIND_SYM,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_SYM,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$signal(status); /* This is really bad. Abort! */
else
{
errstring[length] = '\0';
DSOerr(DSO_F_VMS_BIND_SYM,DSO_R_SYM_FAILURE);
if (ptr->imagename_dsc.dsc$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 void *vms_bind_var(DSO *dso, const char *symname)
{
void *sym = 0;
vms_bind_sym(dso, symname, &sym);
return sym;
}
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;
}
static char *vms_merger(DSO *dso, const char *filespec1, const char *filespec2)
{
int status;
int filespec1len, filespec2len;
struct FAB fab;
#ifdef NAML$C_MAXRSS
struct NAML nam;
char esa[NAML$C_MAXRSS];
#else
struct NAM nam;
char esa[NAM$C_MAXRSS];
#endif
char *merged;
if (!filespec1) filespec1 = "";
if (!filespec2) filespec2 = "";
filespec1len = strlen(filespec1);
filespec2len = strlen(filespec2);
fab = cc$rms_fab;
#ifdef NAML$C_MAXRSS
nam = cc$rms_naml;
#else
nam = cc$rms_nam;
#endif
fab.fab$l_fna = (char *)filespec1;
fab.fab$b_fns = filespec1len;
fab.fab$l_dna = (char *)filespec2;
fab.fab$b_dns = filespec2len;
#ifdef NAML$C_MAXRSS
if (filespec1len > NAM$C_MAXRSS)
{
fab.fab$l_fna = 0;
fab.fab$b_fns = 0;
nam.naml$l_long_filename = (char *)filespec1;
nam.naml$l_long_filename_size = filespec1len;
}
if (filespec2len > NAM$C_MAXRSS)
{
fab.fab$l_dna = 0;
fab.fab$b_dns = 0;
nam.naml$l_long_defname = (char *)filespec2;
nam.naml$l_long_defname_size = filespec2len;
}
nam.naml$l_esa = esa;
nam.naml$b_ess = NAM$C_MAXRSS;
nam.naml$l_long_expand = esa;
nam.naml$l_long_expand_alloc = sizeof(esa);
nam.naml$b_nop = NAM$M_SYNCHK | NAM$M_PWD;
nam.naml$v_no_short_upcase = 1;
fab.fab$l_naml = &nam;
#else
nam.nam$l_esa = esa;
nam.nam$b_ess = NAM$C_MAXRSS;
nam.nam$b_nop = NAM$M_SYNCHK | NAM$M_PWD;
fab.fab$l_nam = &nam;
#endif
status = sys$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$signal(status); /* This is really bad. Abort! */
else
{
errstring[length] = '\0';
DSOerr(DSO_F_VMS_MERGER,DSO_R_FAILURE);
ERR_add_error_data(7,
"filespec \"", filespec1, "\", ",
"defaults \"", filespec2, "\": ",
errstring);
}
return(NULL);
}
#ifdef NAML$C_MAXRSS
if (nam.naml$l_long_expand_size)
{
merged = OPENSSL_malloc(nam.naml$l_long_expand_size + 1);
if(!merged)
goto malloc_err;
strncpy(merged, nam.naml$l_long_expand,
nam.naml$l_long_expand_size);
merged[nam.naml$l_long_expand_size] = '\0';
}
else
{
merged = OPENSSL_malloc(nam.naml$b_esl + 1);
if(!merged)
goto malloc_err;
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 */
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