[thirdparty/openssl.git] / crypto / dso / dso_vms.c

/* dso_vms.c -*- mode:C; c-file-style: "eay" -*- */
/* 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).
 *
 */

#include <stdio.h>
#include <string.h>
#include <errno.h>
#include "cryptlib.h"
#include <openssl/dso.h>

#ifndef OPENSSL_SYS_VMS
DSO_METHOD *DSO_METHOD_vms(void)
	{
	return NULL;
	}
#else

#pragma message disable DOLLARID
#include <rms.h>
#include <lib$routines.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, 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[ 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_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);

/* 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 */

	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_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_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! */
	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_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);
	}

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;

/* 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;
		}

	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;
	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)
		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)
	{
        int len = strlen(filename);
        char *not_translated = OPENSSL_malloc(len+1);
        strcpy(not_translated,filename);
	return(not_translated);
	}

#endif /* OPENSSL_SYS_VMS */
Commit	Line	Data
cbecb3ac	1	/* dso_vms.c -- mode:C; c-file-style: "eay" -- */
0e05f545 RL	2	/* Written by Richard Levitte (richard@levitte.org) for the OpenSSL
	3	* project 2000.
	4	*/
	5	/* ====================================================================
	6	* Copyright (c) 2000 The OpenSSL Project. All rights reserved.
	7	*
	8	* Redistribution and use in source and binary forms, with or without
	9	* modification, are permitted provided that the following conditions
	10	* are met:
	11	*
	12	* 1. Redistributions of source code must retain the above copyright
	13	* notice, this list of conditions and the following disclaimer.
	14	*
	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
	18	* distribution.
	19	*
	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/)"
	24	*
	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.
	29	*
	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.
	33	*
	34	* 6. Redistributions of any form whatsoever must retain the following
	35	* acknowledgment:
	36	* "This product includes software developed by the OpenSSL Project
	37	* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
	38	*
	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	* ====================================================================
	52	*
	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).
	56	*
	57	*/
	58
	59	#include <stdio.h>
	60	#include <string.h>
	61	#include <errno.h>
03c4d82f RL	62	#include "cryptlib.h"
03c4d82f RL	63	#include <openssl/dso.h>
804ab36d GT	64
	65	#ifndef OPENSSL_SYS_VMS
	66	DSO_METHOD *DSO_METHOD_vms(void)
	67	{
	68	return NULL;
	69	}
	70	#else
	71
3aa477f6	72	#pragma message disable DOLLARID
cbecb3ac	73	#include <rms.h>
0e05f545	74	#include <lib$routines.h>
0e05f545 RL	75	#include <stsdef.h>
	76	#include <descrip.h>
	77	#include <starlet.h>
01d2e27a RL	78	#include "vms_rms.h"
	79
	80	/* Some compiler options may mask the declaration of "_malloc32". */
	81	#if __INITIAL_POINTER_SIZE && defined _ANSI_C_SOURCE
	82	# if __INITIAL_POINTER_SIZE == 64
	83	# pragma pointer_size save
	84	# pragma pointer_size 32
	85	void * _malloc32 (__size_t);
	86	# pragma pointer_size restore
	87	# endif /* __INITIAL_POINTER_SIZE == 64 */
	88	#endif /* __INITIAL_POINTER_SIZE && defined _ANSI_C_SOURCE */
	89
0e05f545	90
0e05f545 RL	91	#pragma message disable DOLLARID
0e05f545 RL	92
51c8dc37	93	static int vms_load(DSO *dso);
0e05f545 RL	94	static int vms_unload(DSO *dso);
	95	static void vms_bind_var(DSO dso, const char *symname);
	96	static DSO_FUNC_TYPE vms_bind_func(DSO dso, const char symname);
	97	#if 0
	98	static int vms_unbind_var(DSO dso, char symname, void *symptr);
	99	static int vms_unbind_func(DSO dso, char symname, DSO_FUNC_TYPE symptr);
	100	static int vms_init(DSO *dso);
	101	static int vms_finish(DSO *dso);
0e05f545	102	static long vms_ctrl(DSO dso, int cmd, long larg, void parg);
75a382bd	103	#endif
03c4d82f	104	static char vms_name_converter(DSO dso, const char *filename);
cbecb3ac RL	105	static char vms_merger(DSO dso, const char *filespec1,
cbecb3ac RL	106	const char *filespec2);
0e05f545 RL	107
	108	static DSO_METHOD dso_meth_vms = {
	109	"OpenSSL 'VMS' shared library method",
	110	vms_load,
	111	NULL, /* unload */
	112	vms_bind_var,
	113	vms_bind_func,
	114	/* For now, "unbind" doesn't exist */
	115	#if 0
	116	NULL, /* unbind_var */
	117	NULL, /* unbind_func */
	118	#endif
75a382bd	119	NULL, /* ctrl */
51c8dc37	120	vms_name_converter,
cbecb3ac	121	vms_merger,
0e05f545 RL	122	NULL, /* init */
	123	NULL /* finish */
	124	};
	125
	126	/* On VMS, the only "handle" is the file name. LIB$FIND_IMAGE_SYMBOL depends
	127	* on the reference to the file name being the same for all calls regarding
	128	* one shared image, so we'll just store it in an instance of the following
	129	* structure and put a pointer to that instance in the meth_data stack.
	130	*/
	131	typedef struct dso_internal_st
	132	{
	133	/* This should contain the name only, no directory,
	134	* no extension, nothing but a name. */
	135	struct dsc$descriptor_s filename_dsc;
01d2e27a	136	char filename[ NAMX_MAXRSS+ 1];
0e05f545 RL	137	/* This contains whatever is not in filename, if needed.
	138	* Normally not defined. */
	139	struct dsc$descriptor_s imagename_dsc;
01d2e27a	140	char imagename[ NAMX_MAXRSS+ 1];
0e05f545 RL	141	} DSO_VMS_INTERNAL;
0e05f545 RL	142
0e05f545 RL	143	DSO_METHOD *DSO_METHOD_vms(void)
	144	{
	145	return(&dso_meth_vms);
	146	}
	147
51c8dc37	148	static int vms_load(DSO *dso)
0e05f545	149	{
856d456a RL	150	void *ptr = NULL;
	151	/* See applicable comments in dso_dl.c */
	152	char *filename = DSO_convert_filename(dso, NULL);
01d2e27a RL	153
	154	/* Ensure 32-bit pointer for "p", and appropriate malloc() function. */
	155	#if __INITIAL_POINTER_SIZE == 64
	156	# define DSO_MALLOC _malloc32
	157	# pragma pointer_size save
	158	# pragma pointer_size 32
	159	#else /* __INITIAL_POINTER_SIZE == 64 */
	160	# define DSO_MALLOC OPENSSL_malloc
	161	#endif /* __INITIAL_POINTER_SIZE == 64 [else] */
	162
be085335	163	DSO_VMS_INTERNAL *p = NULL;
01d2e27a RL	164
	165	#if __INITIAL_POINTER_SIZE == 64
	166	# pragma pointer_size restore
	167	#endif /* __INITIAL_POINTER_SIZE == 64 */
	168
0e05f545 RL	169	const char sp1, sp2; /* Search result */
0e05f545 RL	170
856d456a RL	171	if(filename == NULL)
856d456a RL	172	{
aa4ce731	173	DSOerr(DSO_F_VMS_LOAD,DSO_R_NO_FILENAME);
856d456a RL	174	goto err;
	175	}
	176
3e9a08ec TH	177	/*-
3e9a08ec TH	178	* A file specification may look like this:
0e05f545 RL	179	*
	180	* node::dev:[dir-spec]name.type;ver
	181	*
	182	* or (for compatibility with TOPS-20):
	183	*
	184	* node::dev:<dir-spec>name.type;ver
	185	*
	186	* and the dir-spec uses '.' as separator. Also, a dir-spec
	187	* may consist of several parts, with mixed use of [] and <>:
	188	*
	189	* [dir1.]<dir2>
	190	*
	191	* We need to split the file specification into the name and
	192	* the rest (both before and after the name itself).
	193	*/
	194	/* Start with trying to find the end of a dir-spec, and save the
	195	position of the byte after in sp1 */
	196	sp1 = strrchr(filename, ']');
	197	sp2 = strrchr(filename, '>');
	198	if (sp1 == NULL) sp1 = sp2;
	199	if (sp2 != NULL && sp2 > sp1) sp1 = sp2;
	200	if (sp1 == NULL) sp1 = strrchr(filename, ':');
	201	if (sp1 == NULL)
	202	sp1 = filename;
	203	else
	204	sp1++; /* The byte after the found character */
	205	/* Now, let's see if there's a type, and save the position in sp2 */
	206	sp2 = strchr(sp1, '.');
	207	/* If we found it, that's where we'll cut. Otherwise, look for a
	208	version number and save the position in sp2 */
	209	if (sp2 == NULL) sp2 = strchr(sp1, ';');
	210	/* If there was still nothing to find, set sp2 to point at the end of
	211	the string */
	212	if (sp2 == NULL) sp2 = sp1 + strlen(sp1);
	213
	214	/* Check that we won't get buffer overflows */
	215	if (sp2 - sp1 > FILENAME_MAX
	216	\|\| (sp1 - filename) + strlen(sp2) > FILENAME_MAX)
	217	{
	218	DSOerr(DSO_F_VMS_LOAD,DSO_R_FILENAME_TOO_BIG);
856d456a	219	goto err;
0e05f545 RL	220	}
0e05f545 RL	221
01d2e27a	222	p = DSO_MALLOC(sizeof(DSO_VMS_INTERNAL));
0e05f545 RL	223	if(p == NULL)
	224	{
	225	DSOerr(DSO_F_VMS_LOAD,ERR_R_MALLOC_FAILURE);
856d456a	226	goto err;
0e05f545 RL	227	}
	228
	229	strncpy(p->filename, sp1, sp2-sp1);
	230	p->filename[sp2-sp1] = '\0';
	231
	232	strncpy(p->imagename, filename, sp1-filename);
	233	p->imagename[sp1-filename] = '\0';
	234	strcat(p->imagename, sp2);
	235
	236	p->filename_dsc.dsc$w_length = strlen(p->filename);
	237	p->filename_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
	238	p->filename_dsc.dsc$b_class = DSC$K_CLASS_S;
	239	p->filename_dsc.dsc$a_pointer = p->filename;
	240	p->imagename_dsc.dsc$w_length = strlen(p->imagename);
	241	p->imagename_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
	242	p->imagename_dsc.dsc$b_class = DSC$K_CLASS_S;
	243	p->imagename_dsc.dsc$a_pointer = p->imagename;
	244
e77228ba	245	if(!sk_void_push(dso->meth_data, (char *)p))
0e05f545 RL	246	{
0e05f545 RL	247	DSOerr(DSO_F_VMS_LOAD,DSO_R_STACK_ERROR);
856d456a	248	goto err;
0e05f545	249	}
856d456a RL	250
	251	/* Success (for now, we lie. We actually do not know...) */
	252	dso->loaded_filename = filename;
0e05f545	253	return(1);
856d456a RL	254	err:
	255	/* Cleanup! */
	256	if(p != NULL)
	257	OPENSSL_free(p);
	258	if(filename != NULL)
	259	OPENSSL_free(filename);
	260	return(0);
0e05f545 RL	261	}
	262
	263	/* Note that this doesn't actually unload the shared image, as there is no
	264	* such thing in VMS. Next time it get loaded again, a new copy will
	265	* actually be loaded.
	266	*/
	267	static int vms_unload(DSO *dso)
	268	{
	269	DSO_VMS_INTERNAL *p;
	270	if(dso == NULL)
	271	{
	272	DSOerr(DSO_F_VMS_UNLOAD,ERR_R_PASSED_NULL_PARAMETER);
	273	return(0);
	274	}
e77228ba	275	if(sk_void_num(dso->meth_data) < 1)
0e05f545	276	return(1);
e77228ba	277	p = (DSO_VMS_INTERNAL *)sk_void_pop(dso->meth_data);
0e05f545 RL	278	if(p == NULL)
	279	{
	280	DSOerr(DSO_F_VMS_UNLOAD,DSO_R_NULL_HANDLE);
	281	return(0);
	282	}
	283	/* Cleanup */
	284	OPENSSL_free(p);
	285	return(1);
	286	}
	287
	288	/* We must do this in a separate function because of the way the exception
	289	handler works (it makes this function return */
	290	static int do_find_symbol(DSO_VMS_INTERNAL *ptr,
	291	struct dsc$descriptor_s symname_dsc, void *sym,
	292	unsigned long flags)
	293	{
	294	/* Make sure that signals are caught and returned instead of
	295	aborting the program. The exception handler gets unestablished
	296	automatically on return from this function. */
	297	lib$establish(lib$sig_to_ret);
	298
	299	if(ptr->imagename_dsc.dsc$w_length)
	300	return lib$find_image_symbol(&ptr->filename_dsc,
	301	symname_dsc, sym,
	302	&ptr->imagename_dsc, flags);
	303	else
	304	return lib$find_image_symbol(&ptr->filename_dsc,
	305	symname_dsc, sym,
	306	0, flags);
	307	}
	308
3aa477f6	309	void vms_bind_sym(DSO dso, const char symname, void **sym)
0e05f545 RL	310	{
0e05f545 RL	311	DSO_VMS_INTERNAL *ptr;
0e05f545	312	int status;
9d93ce24	313	#if 0
e56b54a3 RL	314	int flags = (1<<4); /* LIB$M_FIS_MIXEDCASE, but this symbol isn't
e56b54a3 RL	315	defined in VMS older than 7.0 or so */
9d93ce24 RL	316	#else
	317	int flags = 0;
	318	#endif
0e05f545 RL	319	struct dsc$descriptor_s symname_dsc;
0e05f545 RL	320
01d2e27a RL	321	/* Arrange 32-bit pointer to (copied) string storage, if needed. */
	322	#if __INITIAL_POINTER_SIZE == 64
	323	# define SYMNAME symname_32p
	324	# pragma pointer_size save
	325	# pragma pointer_size 32
	326	char *symname_32p;
	327	# pragma pointer_size restore
	328	char symname_32[ NAMX_MAXRSS+ 1];
	329	#else /* __INITIAL_POINTER_SIZE == 64 */
	330	# define SYMNAME ((char *) symname)
	331	#endif /* __INITIAL_POINTER_SIZE == 64 [else] */
	332
	333	*sym = NULL;
0e05f545 RL	334
	335	if((dso == NULL) \|\| (symname == NULL))
	336	{
aa4ce731	337	DSOerr(DSO_F_VMS_BIND_SYM,ERR_R_PASSED_NULL_PARAMETER);
3aa477f6	338	return;
0e05f545	339	}
01d2e27a RL	340
	341	#if __INITIAL_POINTER_SIZE == 64
	342	/* Copy the symbol name to storage with a 32-bit pointer. */
	343	symname_32p = symname_32;
	344	strcpy( symname_32p, symname);
	345	#endif /* __INITIAL_POINTER_SIZE == 64 [else] */
	346
	347	symname_dsc.dsc$w_length = strlen(SYMNAME);
	348	symname_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
	349	symname_dsc.dsc$b_class = DSC$K_CLASS_S;
	350	symname_dsc.dsc$a_pointer = SYMNAME;
	351
e77228ba	352	if(sk_void_num(dso->meth_data) < 1)
0e05f545	353	{
aa4ce731	354	DSOerr(DSO_F_VMS_BIND_SYM,DSO_R_STACK_ERROR);
3aa477f6	355	return;
0e05f545	356	}
e77228ba RL	357	ptr = (DSO_VMS_INTERNAL *)sk_void_value(dso->meth_data,
e77228ba RL	358	sk_void_num(dso->meth_data) - 1);
0e05f545 RL	359	if(ptr == NULL)
0e05f545 RL	360	{
aa4ce731	361	DSOerr(DSO_F_VMS_BIND_SYM,DSO_R_NULL_HANDLE);
3aa477f6	362	return;
0e05f545 RL	363	}
	364
	365	if(dso->flags & DSO_FLAG_UPCASE_SYMBOL) flags = 0;
	366
3aa477f6	367	status = do_find_symbol(ptr, &symname_dsc, sym, flags);
0e05f545 RL	368
	369	if(!$VMS_STATUS_SUCCESS(status))
	370	{
	371	unsigned short length;
	372	char errstring[257];
	373	struct dsc$descriptor_s errstring_dsc;
	374
	375	errstring_dsc.dsc$w_length = sizeof(errstring);
	376	errstring_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
	377	errstring_dsc.dsc$b_class = DSC$K_CLASS_S;
	378	errstring_dsc.dsc$a_pointer = errstring;
	379
3aa477f6 RL	380	*sym = NULL;
3aa477f6 RL	381
0e05f545 RL	382	status = sys$getmsg(status, &length, &errstring_dsc, 1, 0);
	383
	384	if (!$VMS_STATUS_SUCCESS(status))
	385	lib$signal(status); /* This is really bad. Abort! */
	386	else
	387	{
	388	errstring[length] = '\0';
	389
aa4ce731	390	DSOerr(DSO_F_VMS_BIND_SYM,DSO_R_SYM_FAILURE);
0e05f545 RL	391	if (ptr->imagename_dsc.dsc$w_length)
	392	ERR_add_error_data(9,
	393	"Symbol ", symname,
	394	" in ", ptr->filename,
	395	" (", ptr->imagename, ")",
	396	": ", errstring);
	397	else
	398	ERR_add_error_data(6,
	399	"Symbol ", symname,
	400	" in ", ptr->filename,
	401	": ", errstring);
	402	}
3aa477f6	403	return;
0e05f545	404	}
3aa477f6	405	return;
0e05f545 RL	406	}
	407
	408	static void vms_bind_var(DSO dso, const char *symname)
	409	{
3aa477f6 RL	410	void *sym = 0;
	411	vms_bind_sym(dso, symname, &sym);
	412	return sym;
0e05f545 RL	413	}
	414
	415	static DSO_FUNC_TYPE vms_bind_func(DSO dso, const char symname)
	416	{
3aa477f6	417	DSO_FUNC_TYPE sym = 0;
4534fb1c	418	vms_bind_sym(dso, symname, (void **)&sym);
3aa477f6	419	return sym;
0e05f545 RL	420	}
0e05f545 RL	421
01d2e27a	422
cbecb3ac RL	423	static char vms_merger(DSO dso, const char filespec1, const char filespec2)
	424	{
	425	int status;
	426	int filespec1len, filespec2len;
	427	struct FAB fab;
01d2e27a RL	428	struct NAMX_STRUCT nam;
01d2e27a RL	429	char esa[ NAMX_MAXRSS+ 1];
cbecb3ac RL	430	char *merged;
cbecb3ac RL	431
01d2e27a RL	432	/* Arrange 32-bit pointer to (copied) string storage, if needed. */
	433	#if __INITIAL_POINTER_SIZE == 64
	434	# define FILESPEC1 filespec1_32p;
	435	# define FILESPEC2 filespec2_32p;
	436	# pragma pointer_size save
	437	# pragma pointer_size 32
	438	char *filespec1_32p;
	439	char *filespec2_32p;
	440	# pragma pointer_size restore
	441	char filespec1_32[ NAMX_MAXRSS+ 1];
	442	char filespec2_32[ NAMX_MAXRSS+ 1];
	443	#else /* __INITIAL_POINTER_SIZE == 64 */
	444	# define FILESPEC1 ((char *) filespec1)
	445	# define FILESPEC2 ((char *) filespec2)
	446	#endif /* __INITIAL_POINTER_SIZE == 64 [else] */
	447
cbecb3ac RL	448	if (!filespec1) filespec1 = "";
	449	if (!filespec2) filespec2 = "";
	450	filespec1len = strlen(filespec1);
	451	filespec2len = strlen(filespec2);
	452
01d2e27a RL	453	#if __INITIAL_POINTER_SIZE == 64
	454	/* Copy the file names to storage with a 32-bit pointer. */
	455	filespec1_32p = filespec1_32;
	456	filespec2_32p = filespec2_32;
	457	strcpy( filespec1_32p, filespec1);
	458	strcpy( filespec2_32p, filespec2);
	459	#endif /* __INITIAL_POINTER_SIZE == 64 [else] */
	460
cbecb3ac	461	fab = cc$rms_fab;
01d2e27a	462	nam = CC_RMS_NAMX;
cbecb3ac	463
01d2e27a RL	464	FAB_OR_NAML( fab, nam).FAB_OR_NAML_FNA = FILESPEC1;
	465	FAB_OR_NAML( fab, nam).FAB_OR_NAML_FNS = filespec1len;
	466	FAB_OR_NAML( fab, nam).FAB_OR_NAML_DNA = FILESPEC2;
	467	FAB_OR_NAML( fab, nam).FAB_OR_NAML_DNS = filespec2len;
	468	NAMX_DNA_FNA_SET( fab)
	469
	470	nam.NAMX_ESA = esa;
	471	nam.NAMX_ESS = NAMX_MAXRSS;
	472	nam.NAMX_NOP = NAM$M_SYNCHK \| NAM$M_PWD;
	473	SET_NAMX_NO_SHORT_UPCASE( nam);
	474
	475	fab.FAB_NAMX = &nam;
cbecb3ac RL	476
	477	status = sys$parse(&fab, 0, 0);
	478
	479	if(!$VMS_STATUS_SUCCESS(status))
	480	{
	481	unsigned short length;
	482	char errstring[257];
	483	struct dsc$descriptor_s errstring_dsc;
	484
	485	errstring_dsc.dsc$w_length = sizeof(errstring);
	486	errstring_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
	487	errstring_dsc.dsc$b_class = DSC$K_CLASS_S;
	488	errstring_dsc.dsc$a_pointer = errstring;
	489
cbecb3ac RL	490	status = sys$getmsg(status, &length, &errstring_dsc, 1, 0);
	491
	492	if (!$VMS_STATUS_SUCCESS(status))
	493	lib$signal(status); /* This is really bad. Abort! */
	494	else
	495	{
	496	errstring[length] = '\0';
	497
	498	DSOerr(DSO_F_VMS_MERGER,DSO_R_FAILURE);
7a5ed919 RL	499	ERR_add_error_data(7,
	500	"filespec \"", filespec1, "\", ",
	501	"defaults \"", filespec2, "\": ",
	502	errstring);
cbecb3ac RL	503	}
	504	return(NULL);
	505	}
01d2e27a RL	506
01d2e27a RL	507	merged = OPENSSL_malloc( nam.NAMX_ESL+ 1);
cbecb3ac RL	508	if(!merged)
cbecb3ac RL	509	goto malloc_err;
01d2e27a RL	510	strncpy( merged, nam.NAMX_ESA, nam.NAMX_ESL);
01d2e27a RL	511	merged[ nam.NAMX_ESL] = '\0';
cbecb3ac RL	512	return(merged);
	513	malloc_err:
	514	DSOerr(DSO_F_VMS_MERGER,
	515	ERR_R_MALLOC_FAILURE);
	516	}
	517
856d456a	518	static char vms_name_converter(DSO dso, const char *filename)
51c8dc37	519	{
03c4d82f RL	520	int len = strlen(filename);
	521	char *not_translated = OPENSSL_malloc(len+1);
	522	strcpy(not_translated,filename);
	523	return(not_translated);
51c8dc37 GT	524	}
51c8dc37 GT	525
bc36ee62	526	#endif /* OPENSSL_SYS_VMS */