[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>
#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_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;
	*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_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;
#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 */
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>
bc36ee62	64	#ifdef OPENSSL_SYS_VMS
3aa477f6	65	#pragma message disable DOLLARID
cbecb3ac	66	#include <rms.h>
0e05f545	67	#include <lib$routines.h>
0e05f545 RL	68	#include <stsdef.h>
	69	#include <descrip.h>
	70	#include <starlet.h>
ea4e4149	71	#endif
0e05f545	72
bc36ee62	73	#ifndef OPENSSL_SYS_VMS
0e05f545 RL	74	DSO_METHOD *DSO_METHOD_vms(void)
	75	{
	76	return NULL;
	77	}
	78	#else
	79	#pragma message disable DOLLARID
	80
51c8dc37	81	static int vms_load(DSO *dso);
0e05f545 RL	82	static int vms_unload(DSO *dso);
	83	static void vms_bind_var(DSO dso, const char *symname);
	84	static DSO_FUNC_TYPE vms_bind_func(DSO dso, const char symname);
	85	#if 0
	86	static int vms_unbind_var(DSO dso, char symname, void *symptr);
	87	static int vms_unbind_func(DSO dso, char symname, DSO_FUNC_TYPE symptr);
	88	static int vms_init(DSO *dso);
	89	static int vms_finish(DSO *dso);
0e05f545	90	static long vms_ctrl(DSO dso, int cmd, long larg, void parg);
75a382bd	91	#endif
03c4d82f	92	static char vms_name_converter(DSO dso, const char *filename);
cbecb3ac RL	93	static char vms_merger(DSO dso, const char *filespec1,
cbecb3ac RL	94	const char *filespec2);
0e05f545 RL	95
	96	static DSO_METHOD dso_meth_vms = {
	97	"OpenSSL 'VMS' shared library method",
	98	vms_load,
	99	NULL, /* unload */
	100	vms_bind_var,
	101	vms_bind_func,
	102	/* For now, "unbind" doesn't exist */
	103	#if 0
	104	NULL, /* unbind_var */
	105	NULL, /* unbind_func */
	106	#endif
75a382bd	107	NULL, /* ctrl */
51c8dc37	108	vms_name_converter,
cbecb3ac	109	vms_merger,
0e05f545 RL	110	NULL, /* init */
	111	NULL /* finish */
	112	};
	113
	114	/* On VMS, the only "handle" is the file name. LIB$FIND_IMAGE_SYMBOL depends
	115	* on the reference to the file name being the same for all calls regarding
	116	* one shared image, so we'll just store it in an instance of the following
	117	* structure and put a pointer to that instance in the meth_data stack.
	118	*/
	119	typedef struct dso_internal_st
	120	{
	121	/* This should contain the name only, no directory,
	122	* no extension, nothing but a name. */
	123	struct dsc$descriptor_s filename_dsc;
	124	char filename[FILENAME_MAX+1];
	125	/* This contains whatever is not in filename, if needed.
	126	* Normally not defined. */
	127	struct dsc$descriptor_s imagename_dsc;
	128	char imagename[FILENAME_MAX+1];
	129	} DSO_VMS_INTERNAL;
	130
	131
	132	DSO_METHOD *DSO_METHOD_vms(void)
	133	{
	134	return(&dso_meth_vms);
	135	}
	136
51c8dc37	137	static int vms_load(DSO *dso)
0e05f545	138	{
856d456a RL	139	void *ptr = NULL;
	140	/* See applicable comments in dso_dl.c */
	141	char *filename = DSO_convert_filename(dso, NULL);
0e05f545 RL	142	DSO_VMS_INTERNAL *p;
	143	const char sp1, sp2; /* Search result */
	144
856d456a RL	145	if(filename == NULL)
856d456a RL	146	{
aa4ce731	147	DSOerr(DSO_F_VMS_LOAD,DSO_R_NO_FILENAME);
856d456a RL	148	goto err;
	149	}
	150
0e05f545 RL	151	/* A file specification may look like this:
	152	*
	153	* node::dev:[dir-spec]name.type;ver
	154	*
	155	* or (for compatibility with TOPS-20):
	156	*
	157	* node::dev:<dir-spec>name.type;ver
	158	*
	159	* and the dir-spec uses '.' as separator. Also, a dir-spec
	160	* may consist of several parts, with mixed use of [] and <>:
	161	*
	162	* [dir1.]<dir2>
	163	*
	164	* We need to split the file specification into the name and
	165	* the rest (both before and after the name itself).
	166	*/
	167	/* Start with trying to find the end of a dir-spec, and save the
	168	position of the byte after in sp1 */
	169	sp1 = strrchr(filename, ']');
	170	sp2 = strrchr(filename, '>');
	171	if (sp1 == NULL) sp1 = sp2;
	172	if (sp2 != NULL && sp2 > sp1) sp1 = sp2;
	173	if (sp1 == NULL) sp1 = strrchr(filename, ':');
	174	if (sp1 == NULL)
	175	sp1 = filename;
	176	else
	177	sp1++; /* The byte after the found character */
	178	/* Now, let's see if there's a type, and save the position in sp2 */
	179	sp2 = strchr(sp1, '.');
	180	/* If we found it, that's where we'll cut. Otherwise, look for a
	181	version number and save the position in sp2 */
	182	if (sp2 == NULL) sp2 = strchr(sp1, ';');
	183	/* If there was still nothing to find, set sp2 to point at the end of
	184	the string */
	185	if (sp2 == NULL) sp2 = sp1 + strlen(sp1);
	186
	187	/* Check that we won't get buffer overflows */
	188	if (sp2 - sp1 > FILENAME_MAX
	189	\|\| (sp1 - filename) + strlen(sp2) > FILENAME_MAX)
	190	{
	191	DSOerr(DSO_F_VMS_LOAD,DSO_R_FILENAME_TOO_BIG);
856d456a	192	goto err;
0e05f545 RL	193	}
	194
	195	p = (DSO_VMS_INTERNAL *)OPENSSL_malloc(sizeof(DSO_VMS_INTERNAL));
	196	if(p == NULL)
	197	{
	198	DSOerr(DSO_F_VMS_LOAD,ERR_R_MALLOC_FAILURE);
856d456a	199	goto err;
0e05f545 RL	200	}
	201
	202	strncpy(p->filename, sp1, sp2-sp1);
	203	p->filename[sp2-sp1] = '\0';
	204
	205	strncpy(p->imagename, filename, sp1-filename);
	206	p->imagename[sp1-filename] = '\0';
	207	strcat(p->imagename, sp2);
	208
	209	p->filename_dsc.dsc$w_length = strlen(p->filename);
	210	p->filename_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
	211	p->filename_dsc.dsc$b_class = DSC$K_CLASS_S;
	212	p->filename_dsc.dsc$a_pointer = p->filename;
	213	p->imagename_dsc.dsc$w_length = strlen(p->imagename);
	214	p->imagename_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
	215	p->imagename_dsc.dsc$b_class = DSC$K_CLASS_S;
	216	p->imagename_dsc.dsc$a_pointer = p->imagename;
	217
e77228ba	218	if(!sk_void_push(dso->meth_data, (char *)p))
0e05f545 RL	219	{
0e05f545 RL	220	DSOerr(DSO_F_VMS_LOAD,DSO_R_STACK_ERROR);
856d456a	221	goto err;
0e05f545	222	}
856d456a RL	223
	224	/* Success (for now, we lie. We actually do not know...) */
	225	dso->loaded_filename = filename;
0e05f545	226	return(1);
856d456a RL	227	err:
	228	/* Cleanup! */
	229	if(p != NULL)
	230	OPENSSL_free(p);
	231	if(filename != NULL)
	232	OPENSSL_free(filename);
	233	return(0);
0e05f545 RL	234	}
	235
	236	/* Note that this doesn't actually unload the shared image, as there is no
	237	* such thing in VMS. Next time it get loaded again, a new copy will
	238	* actually be loaded.
	239	*/
	240	static int vms_unload(DSO *dso)
	241	{
	242	DSO_VMS_INTERNAL *p;
	243	if(dso == NULL)
	244	{
	245	DSOerr(DSO_F_VMS_UNLOAD,ERR_R_PASSED_NULL_PARAMETER);
	246	return(0);
	247	}
e77228ba	248	if(sk_void_num(dso->meth_data) < 1)
0e05f545	249	return(1);
e77228ba	250	p = (DSO_VMS_INTERNAL *)sk_void_pop(dso->meth_data);
0e05f545 RL	251	if(p == NULL)
	252	{
	253	DSOerr(DSO_F_VMS_UNLOAD,DSO_R_NULL_HANDLE);
	254	return(0);
	255	}
	256	/* Cleanup */
	257	OPENSSL_free(p);
	258	return(1);
	259	}
	260
	261	/* We must do this in a separate function because of the way the exception
	262	handler works (it makes this function return */
	263	static int do_find_symbol(DSO_VMS_INTERNAL *ptr,
	264	struct dsc$descriptor_s symname_dsc, void *sym,
	265	unsigned long flags)
	266	{
	267	/* Make sure that signals are caught and returned instead of
	268	aborting the program. The exception handler gets unestablished
	269	automatically on return from this function. */
	270	lib$establish(lib$sig_to_ret);
	271
	272	if(ptr->imagename_dsc.dsc$w_length)
	273	return lib$find_image_symbol(&ptr->filename_dsc,
	274	symname_dsc, sym,
	275	&ptr->imagename_dsc, flags);
	276	else
	277	return lib$find_image_symbol(&ptr->filename_dsc,
	278	symname_dsc, sym,
	279	0, flags);
	280	}
	281
3aa477f6	282	void vms_bind_sym(DSO dso, const char symname, void **sym)
0e05f545 RL	283	{
0e05f545 RL	284	DSO_VMS_INTERNAL *ptr;
0e05f545	285	int status;
9d93ce24	286	#if 0
e56b54a3 RL	287	int flags = (1<<4); /* LIB$M_FIS_MIXEDCASE, but this symbol isn't
e56b54a3 RL	288	defined in VMS older than 7.0 or so */
9d93ce24 RL	289	#else
	290	int flags = 0;
	291	#endif
0e05f545	292	struct dsc$descriptor_s symname_dsc;
3aa477f6	293	*sym = NULL;
0e05f545 RL	294
	295	symname_dsc.dsc$w_length = strlen(symname);
	296	symname_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
	297	symname_dsc.dsc$b_class = DSC$K_CLASS_S;
	298	symname_dsc.dsc$a_pointer = (char )symname; / The cast is needed */
	299
	300	if((dso == NULL) \|\| (symname == NULL))
	301	{
aa4ce731	302	DSOerr(DSO_F_VMS_BIND_SYM,ERR_R_PASSED_NULL_PARAMETER);
3aa477f6	303	return;
0e05f545	304	}
e77228ba	305	if(sk_void_num(dso->meth_data) < 1)
0e05f545	306	{
aa4ce731	307	DSOerr(DSO_F_VMS_BIND_SYM,DSO_R_STACK_ERROR);
3aa477f6	308	return;
0e05f545	309	}
e77228ba RL	310	ptr = (DSO_VMS_INTERNAL *)sk_void_value(dso->meth_data,
e77228ba RL	311	sk_void_num(dso->meth_data) - 1);
0e05f545 RL	312	if(ptr == NULL)
0e05f545 RL	313	{
aa4ce731	314	DSOerr(DSO_F_VMS_BIND_SYM,DSO_R_NULL_HANDLE);
3aa477f6	315	return;
0e05f545 RL	316	}
	317
	318	if(dso->flags & DSO_FLAG_UPCASE_SYMBOL) flags = 0;
	319
3aa477f6	320	status = do_find_symbol(ptr, &symname_dsc, sym, flags);
0e05f545 RL	321
	322	if(!$VMS_STATUS_SUCCESS(status))
	323	{
	324	unsigned short length;
	325	char errstring[257];
	326	struct dsc$descriptor_s errstring_dsc;
	327
	328	errstring_dsc.dsc$w_length = sizeof(errstring);
	329	errstring_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
	330	errstring_dsc.dsc$b_class = DSC$K_CLASS_S;
	331	errstring_dsc.dsc$a_pointer = errstring;
	332
3aa477f6 RL	333	*sym = NULL;
3aa477f6 RL	334
0e05f545 RL	335	status = sys$getmsg(status, &length, &errstring_dsc, 1, 0);
	336
	337	if (!$VMS_STATUS_SUCCESS(status))
	338	lib$signal(status); /* This is really bad. Abort! */
	339	else
	340	{
	341	errstring[length] = '\0';
	342
aa4ce731	343	DSOerr(DSO_F_VMS_BIND_SYM,DSO_R_SYM_FAILURE);
0e05f545 RL	344	if (ptr->imagename_dsc.dsc$w_length)
	345	ERR_add_error_data(9,
	346	"Symbol ", symname,
	347	" in ", ptr->filename,
	348	" (", ptr->imagename, ")",
	349	": ", errstring);
	350	else
	351	ERR_add_error_data(6,
	352	"Symbol ", symname,
	353	" in ", ptr->filename,
	354	": ", errstring);
	355	}
3aa477f6	356	return;
0e05f545	357	}
3aa477f6	358	return;
0e05f545 RL	359	}
	360
	361	static void vms_bind_var(DSO dso, const char *symname)
	362	{
3aa477f6 RL	363	void *sym = 0;
	364	vms_bind_sym(dso, symname, &sym);
	365	return sym;
0e05f545 RL	366	}
	367
	368	static DSO_FUNC_TYPE vms_bind_func(DSO dso, const char symname)
	369	{
3aa477f6	370	DSO_FUNC_TYPE sym = 0;
4534fb1c	371	vms_bind_sym(dso, symname, (void **)&sym);
3aa477f6	372	return sym;
0e05f545 RL	373	}
0e05f545 RL	374
cbecb3ac RL	375	static char vms_merger(DSO dso, const char filespec1, const char filespec2)
	376	{
	377	int status;
	378	int filespec1len, filespec2len;
	379	struct FAB fab;
	380	#ifdef NAML$C_MAXRSS
	381	struct NAML nam;
	382	char esa[NAML$C_MAXRSS];
	383	#else
	384	struct NAM nam;
	385	char esa[NAM$C_MAXRSS];
	386	#endif
	387	char *merged;
	388
	389	if (!filespec1) filespec1 = "";
	390	if (!filespec2) filespec2 = "";
	391	filespec1len = strlen(filespec1);
	392	filespec2len = strlen(filespec2);
	393
	394	fab = cc$rms_fab;
	395	#ifdef NAML$C_MAXRSS
	396	nam = cc$rms_naml;
	397	#else
	398	nam = cc$rms_nam;
	399	#endif
	400
7a5ed919	401	fab.fab$l_fna = (char *)filespec1;
cbecb3ac	402	fab.fab$b_fns = filespec1len;
7a5ed919	403	fab.fab$l_dna = (char *)filespec2;
cbecb3ac RL	404	fab.fab$b_dns = filespec2len;
	405	#ifdef NAML$C_MAXRSS
	406	if (filespec1len > NAM$C_MAXRSS)
	407	{
7a5ed919	408	fab.fab$l_fna = 0;
cbecb3ac	409	fab.fab$b_fns = 0;
7a5ed919	410	nam.naml$l_long_filename = (char *)filespec1;
cbecb3ac RL	411	nam.naml$l_long_filename_size = filespec1len;
	412	}
	413	if (filespec2len > NAM$C_MAXRSS)
	414	{
7a5ed919	415	fab.fab$l_dna = 0;
cbecb3ac	416	fab.fab$b_dns = 0;
7a5ed919	417	nam.naml$l_long_defname = (char *)filespec2;
cbecb3ac RL	418	nam.naml$l_long_defname_size = filespec2len;
	419	}
	420	nam.naml$l_esa = esa;
	421	nam.naml$b_ess = NAM$C_MAXRSS;
	422	nam.naml$l_long_expand = esa;
	423	nam.naml$l_long_expand_alloc = sizeof(esa);
	424	nam.naml$b_nop = NAM$M_SYNCHK \| NAM$M_PWD;
7a5ed919 RL	425	nam.naml$v_no_short_upcase = 1;
7a5ed919 RL	426	fab.fab$l_naml = &nam;
cbecb3ac RL	427	#else
	428	nam.nam$l_esa = esa;
	429	nam.nam$b_ess = NAM$C_MAXRSS;
	430	nam.nam$b_nop = NAM$M_SYNCHK \| NAM$M_PWD;
cbecb3ac	431	fab.fab$l_nam = &nam;
7a5ed919	432	#endif
cbecb3ac RL	433
	434	status = sys$parse(&fab, 0, 0);
	435
	436	if(!$VMS_STATUS_SUCCESS(status))
	437	{
	438	unsigned short length;
	439	char errstring[257];
	440	struct dsc$descriptor_s errstring_dsc;
	441
	442	errstring_dsc.dsc$w_length = sizeof(errstring);
	443	errstring_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
	444	errstring_dsc.dsc$b_class = DSC$K_CLASS_S;
	445	errstring_dsc.dsc$a_pointer = errstring;
	446
cbecb3ac RL	447	status = sys$getmsg(status, &length, &errstring_dsc, 1, 0);
	448
	449	if (!$VMS_STATUS_SUCCESS(status))
	450	lib$signal(status); /* This is really bad. Abort! */
	451	else
	452	{
	453	errstring[length] = '\0';
	454
	455	DSOerr(DSO_F_VMS_MERGER,DSO_R_FAILURE);
7a5ed919 RL	456	ERR_add_error_data(7,
	457	"filespec \"", filespec1, "\", ",
	458	"defaults \"", filespec2, "\": ",
	459	errstring);
cbecb3ac RL	460	}
	461	return(NULL);
	462	}
	463	#ifdef NAML$C_MAXRSS
	464	if (nam.naml$l_long_expand_size)
	465	{
	466	merged = OPENSSL_malloc(nam.naml$l_long_expand_size + 1);
	467	if(!merged)
	468	goto malloc_err;
	469	strncpy(merged, nam.naml$l_long_expand,
	470	nam.naml$l_long_expand_size);
	471	merged[nam.naml$l_long_expand_size] = '\0';
	472	}
	473	else
	474	{
7a5ed919	475	merged = OPENSSL_malloc(nam.naml$b_esl + 1);
cbecb3ac RL	476	if(!merged)
	477	goto malloc_err;
	478	strncpy(merged, nam.naml$l_esa,
7a5ed919 RL	479	nam.naml$b_esl);
7a5ed919 RL	480	merged[nam.naml$b_esl] = '\0';
cbecb3ac RL	481	}
cbecb3ac RL	482	#else
7a5ed919	483	merged = OPENSSL_malloc(nam.nam$b_esl + 1);
cbecb3ac RL	484	if(!merged)
	485	goto malloc_err;
	486	strncpy(merged, nam.nam$l_esa,
7a5ed919 RL	487	nam.nam$b_esl);
7a5ed919 RL	488	merged[nam.nam$b_esl] = '\0';
cbecb3ac RL	489	#endif
	490	return(merged);
	491	malloc_err:
	492	DSOerr(DSO_F_VMS_MERGER,
	493	ERR_R_MALLOC_FAILURE);
	494	}
	495
856d456a	496	static char vms_name_converter(DSO dso, const char *filename)
51c8dc37	497	{
03c4d82f RL	498	int len = strlen(filename);
	499	char *not_translated = OPENSSL_malloc(len+1);
	500	strcpy(not_translated,filename);
	501	return(not_translated);
51c8dc37 GT	502	}
51c8dc37 GT	503
bc36ee62	504	#endif /* OPENSSL_SYS_VMS */