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

/* dso_vms.c */
/* Written by Richard Levitte (richard@levitte.org) for the OpenSSL
 * project 2000.
 */
/* ====================================================================
 * Copyright (c) 2000 The OpenSSL Project.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer. 
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. All advertising materials mentioning features or use of this
 *    software must display the following acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
 *
 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
 *    endorse or promote products derived from this software without
 *    prior written permission. For written permission, please contact
 *    licensing@OpenSSL.org.
 *
 * 5. Products derived from this software may not be called "OpenSSL"
 *    nor may "OpenSSL" appear in their names without prior written
 *    permission of the OpenSSL Project.
 *
 * 6. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
 *
 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 * ====================================================================
 *
 * This product includes cryptographic software written by Eric Young
 * (eay@cryptsoft.com).  This product includes software written by Tim
 * Hudson (tjh@cryptsoft.com).
 *
 */

#include <stdio.h>
#include <string.h>
#include <errno.h>
#ifdef VMS
#pragma message disable DOLLARID
#include <lib$routines.h>
#include <libfisdef.h>
#include <stsdef.h>
#include <descrip.h>
#include <starlet.h>
#endif
#include "cryptlib.h"
#include <openssl/dso.h>

#ifndef VMS
DSO_METHOD *DSO_METHOD_vms(void)
	{
	return NULL;
	}
#else
#pragma message disable DOLLARID

static int vms_load(DSO *dso, const char *filename);
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 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 */
	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, const char *filename)
	{
	DSO_VMS_INTERNAL *p;
	const char *sp1, *sp2;	/* Search result */

	/* 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);
		return(0);
		}

	p = (DSO_VMS_INTERNAL *)OPENSSL_malloc(sizeof(DSO_VMS_INTERNAL));
	if(p == NULL)
		{
		DSOerr(DSO_F_VMS_LOAD,ERR_R_MALLOC_FAILURE);
		return(0);
		}

	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);
		OPENSSL_free(p);
		return(0);
		}
	return(1);
	}

/* 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;
	int flags = LIB$M_FIS_MIXEDCASE;
	struct dsc$descriptor_s symname_dsc;
	*sym = NULL;

	symname_dsc.dsc$w_length = strlen(symname);
	symname_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
	symname_dsc.dsc$b_class = DSC$K_CLASS_S;
	symname_dsc.dsc$a_pointer = (char *)symname; /* The cast is needed */

	if((dso == NULL) || (symname == NULL))
		{
		DSOerr(DSO_F_VMS_BIND_VAR,ERR_R_PASSED_NULL_PARAMETER);
		return;
		}
	if(sk_num(dso->meth_data) < 1)
		{
		DSOerr(DSO_F_VMS_BIND_VAR,DSO_R_STACK_ERROR);
		return;
		}
	ptr = (DSO_VMS_INTERNAL *)sk_value(dso->meth_data,
		sk_num(dso->meth_data) - 1);
	if(ptr == NULL)
		{
		DSOerr(DSO_F_VMS_BIND_VAR,DSO_R_NULL_HANDLE);
		return;
		}

	if(dso->flags & DSO_FLAG_UPCASE_SYMBOL) flags = 0;

	status = do_find_symbol(ptr, &symname_dsc, sym, flags);

	if(!$VMS_STATUS_SUCCESS(status))
		{
		unsigned short length;
		char errstring[257];
		struct dsc$descriptor_s errstring_dsc;

		errstring_dsc.dsc$w_length = sizeof(errstring);
		errstring_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
		errstring_dsc.dsc$b_class = DSC$K_CLASS_S;
		errstring_dsc.dsc$a_pointer = errstring;

		*sym = NULL;

		status = sys$getmsg(status, &length, &errstring_dsc, 1, 0);

		if (!$VMS_STATUS_SUCCESS(status))
			lib$signal(status); /* This is really bad.  Abort!  */
		else
			{
			errstring[length] = '\0';

			DSOerr(DSO_F_VMS_BIND_VAR,DSO_R_SYM_FAILURE);
			if (ptr->imagename_dsc.dsc$w_length)
				ERR_add_error_data(9,
					"Symbol ", symname,
					" in ", ptr->filename,
					" (", ptr->imagename, ")",
					": ", errstring);
			else
				ERR_add_error_data(6,
					"Symbol ", symname,
					" in ", ptr->filename,
					": ", errstring);
			}
		return;
		}
	return;
	}

static void *vms_bind_var(DSO *dso, const char *symname)
	{
	void *sym = 0;
	vms_bind_sym(dso, symname, &sym);
	return sym;
	}

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;
	}

#endif /* VMS */
Commit	Line	Data
0e05f545 RL	1	/* dso_vms.c */
	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>
ea4e4149	62	#ifdef VMS
3aa477f6	63	#pragma message disable DOLLARID
0e05f545 RL	64	#include <lib$routines.h>
	65	#include <libfisdef.h>
	66	#include <stsdef.h>
	67	#include <descrip.h>
	68	#include <starlet.h>
ea4e4149	69	#endif
0e05f545 RL	70	#include "cryptlib.h"
	71	#include <openssl/dso.h>
	72
	73	#ifndef VMS
	74	DSO_METHOD *DSO_METHOD_vms(void)
	75	{
	76	return NULL;
	77	}
	78	#else
	79	#pragma message disable DOLLARID
	80
	81	static int vms_load(DSO dso, const char filename);
	82	static int vms_unload(DSO *dso);
	83	static void vms_bind_var(DSO dso, const char *symname);
	84	static DSO_FUNC_TYPE vms_bind_func(DSO dso, const char symname);
	85	#if 0
	86	static int vms_unbind_var(DSO dso, char symname, void *symptr);
	87	static int vms_unbind_func(DSO dso, char symname, DSO_FUNC_TYPE symptr);
	88	static int vms_init(DSO *dso);
	89	static int vms_finish(DSO *dso);
0e05f545	90	static long vms_ctrl(DSO dso, int cmd, long larg, void parg);
75a382bd	91	#endif
0e05f545 RL	92
	93	static DSO_METHOD dso_meth_vms = {
	94	"OpenSSL 'VMS' shared library method",
	95	vms_load,
	96	NULL, /* unload */
	97	vms_bind_var,
	98	vms_bind_func,
	99	/* For now, "unbind" doesn't exist */
	100	#if 0
	101	NULL, /* unbind_var */
	102	NULL, /* unbind_func */
	103	#endif
75a382bd	104	NULL, /* ctrl */
0e05f545 RL	105	NULL, /* init */
	106	NULL /* finish */
	107	};
	108
	109	/* On VMS, the only "handle" is the file name. LIB$FIND_IMAGE_SYMBOL depends
	110	* on the reference to the file name being the same for all calls regarding
	111	* one shared image, so we'll just store it in an instance of the following
	112	* structure and put a pointer to that instance in the meth_data stack.
	113	*/
	114	typedef struct dso_internal_st
	115	{
	116	/* This should contain the name only, no directory,
	117	* no extension, nothing but a name. */
	118	struct dsc$descriptor_s filename_dsc;
	119	char filename[FILENAME_MAX+1];
	120	/* This contains whatever is not in filename, if needed.
	121	* Normally not defined. */
	122	struct dsc$descriptor_s imagename_dsc;
	123	char imagename[FILENAME_MAX+1];
	124	} DSO_VMS_INTERNAL;
	125
	126
	127	DSO_METHOD *DSO_METHOD_vms(void)
	128	{
	129	return(&dso_meth_vms);
	130	}
	131
	132	static int vms_load(DSO dso, const char filename)
	133	{
	134	DSO_VMS_INTERNAL *p;
	135	const char sp1, sp2; /* Search result */
	136
	137	/* A file specification may look like this:
	138	*
	139	* node::dev:[dir-spec]name.type;ver
	140	*
	141	* or (for compatibility with TOPS-20):
	142	*
	143	* node::dev:<dir-spec>name.type;ver
	144	*
	145	* and the dir-spec uses '.' as separator. Also, a dir-spec
	146	* may consist of several parts, with mixed use of [] and <>:
	147	*
	148	* [dir1.]<dir2>
	149	*
	150	* We need to split the file specification into the name and
	151	* the rest (both before and after the name itself).
	152	*/
	153	/* Start with trying to find the end of a dir-spec, and save the
	154	position of the byte after in sp1 */
	155	sp1 = strrchr(filename, ']');
	156	sp2 = strrchr(filename, '>');
	157	if (sp1 == NULL) sp1 = sp2;
	158	if (sp2 != NULL && sp2 > sp1) sp1 = sp2;
	159	if (sp1 == NULL) sp1 = strrchr(filename, ':');
	160	if (sp1 == NULL)
	161	sp1 = filename;
	162	else
	163	sp1++; /* The byte after the found character */
	164	/* Now, let's see if there's a type, and save the position in sp2 */
	165	sp2 = strchr(sp1, '.');
	166	/* If we found it, that's where we'll cut. Otherwise, look for a
	167	version number and save the position in sp2 */
	168	if (sp2 == NULL) sp2 = strchr(sp1, ';');
169	/* If there was still nothing to find, set sp2 to point at the end of
170	the string */
171	if (sp2 == NULL) sp2 = sp1 + strlen(sp1);
172
173	/* Check that we won't get buffer overflows */
174	if (sp2 - sp1 > FILENAME_MAX
175	\|\| (sp1 - filename) + strlen(sp2) > FILENAME_MAX)
176	{
177	DSOerr(DSO_F_VMS_LOAD,DSO_R_FILENAME_TOO_BIG);
178	return(0);
179	}
180
181	p = (DSO_VMS_INTERNAL *)OPENSSL_malloc(sizeof(DSO_VMS_INTERNAL));
182	if(p == NULL)
183	{
184	DSOerr(DSO_F_VMS_LOAD,ERR_R_MALLOC_FAILURE);
185	return(0);
186	}
187
188	strncpy(p->filename, sp1, sp2-sp1);
189	p->filename[sp2-sp1] = '\0';
190
191	strncpy(p->imagename, filename, sp1-filename);
192	p->imagename[sp1-filename] = '\0';
193	strcat(p->imagename, sp2);
194
195	p->filename_dsc.dsc$w_length = strlen(p->filename);
196	p->filename_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
197	p->filename_dsc.dsc$b_class = DSC$K_CLASS_S;
198	p->filename_dsc.dsc$a_pointer = p->filename;
199	p->imagename_dsc.dsc$w_length = strlen(p->imagename);
200	p->imagename_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
201	p->imagename_dsc.dsc$b_class = DSC$K_CLASS_S;
202	p->imagename_dsc.dsc$a_pointer = p->imagename;
203
204	if(!sk_push(dso->meth_data, (char *)p))
205	{
206	DSOerr(DSO_F_VMS_LOAD,DSO_R_STACK_ERROR);
207	OPENSSL_free(p);
208	return(0);
209	}
210	return(1);
211	}
212
213	/* Note that this doesn't actually unload the shared image, as there is no
214	* such thing in VMS. Next time it get loaded again, a new copy will
215	* actually be loaded.
216	*/
217	static int vms_unload(DSO *dso)
218	{
219	DSO_VMS_INTERNAL *p;
220	if(dso == NULL)
221	{
222	DSOerr(DSO_F_VMS_UNLOAD,ERR_R_PASSED_NULL_PARAMETER);
223	return(0);
224	}
225	if(sk_num(dso->meth_data) < 1)
226	return(1);
227	p = (DSO_VMS_INTERNAL *)sk_pop(dso->meth_data);
228	if(p == NULL)
229	{
230	DSOerr(DSO_F_VMS_UNLOAD,DSO_R_NULL_HANDLE);
231	return(0);
232	}
233	/* Cleanup */
234	OPENSSL_free(p);
235	return(1);
236	}
237
238	/* We must do this in a separate function because of the way the exception
239	handler works (it makes this function return */
240	static int do_find_symbol(DSO_VMS_INTERNAL *ptr,
241	struct dsc$descriptor_s symname_dsc, void *sym,
242	unsigned long flags)
243	{
244	/* Make sure that signals are caught and returned instead of
245	aborting the program. The exception handler gets unestablished
246	automatically on return from this function. */
247	lib$establish(lib$sig_to_ret);
248
249	if(ptr->imagename_dsc.dsc$w_length)
250	return lib$find_image_symbol(&ptr->filename_dsc,
251	symname_dsc, sym,
252	&ptr->imagename_dsc, flags);
253	else
254	return lib$find_image_symbol(&ptr->filename_dsc,
255	symname_dsc, sym,
256	0, flags);
257	}
258
3aa477f6	259	void vms_bind_sym(DSO dso, const char symname, void **sym)
0e05f545 RL	260	{
0e05f545 RL	261	DSO_VMS_INTERNAL *ptr;
0e05f545 RL	262	int status;
	263	int flags = LIB$M_FIS_MIXEDCASE;
	264	struct dsc$descriptor_s symname_dsc;
3aa477f6	265	*sym = NULL;
0e05f545 RL	266
	267	symname_dsc.dsc$w_length = strlen(symname);
	268	symname_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
	269	symname_dsc.dsc$b_class = DSC$K_CLASS_S;
	270	symname_dsc.dsc$a_pointer = (char )symname; / The cast is needed */
	271
	272	if((dso == NULL) \|\| (symname == NULL))
	273	{
	274	DSOerr(DSO_F_VMS_BIND_VAR,ERR_R_PASSED_NULL_PARAMETER);
3aa477f6	275	return;
0e05f545 RL	276	}
	277	if(sk_num(dso->meth_data) < 1)
	278	{
	279	DSOerr(DSO_F_VMS_BIND_VAR,DSO_R_STACK_ERROR);
3aa477f6	280	return;
0e05f545 RL	281	}
	282	ptr = (DSO_VMS_INTERNAL *)sk_value(dso->meth_data,
	283	sk_num(dso->meth_data) - 1);
	284	if(ptr == NULL)
	285	{
	286	DSOerr(DSO_F_VMS_BIND_VAR,DSO_R_NULL_HANDLE);
3aa477f6	287	return;
0e05f545 RL	288	}
	289
	290	if(dso->flags & DSO_FLAG_UPCASE_SYMBOL) flags = 0;
	291
3aa477f6	292	status = do_find_symbol(ptr, &symname_dsc, sym, flags);
0e05f545 RL	293
	294	if(!$VMS_STATUS_SUCCESS(status))
	295	{
	296	unsigned short length;
	297	char errstring[257];
	298	struct dsc$descriptor_s errstring_dsc;
	299
	300	errstring_dsc.dsc$w_length = sizeof(errstring);
	301	errstring_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
	302	errstring_dsc.dsc$b_class = DSC$K_CLASS_S;
	303	errstring_dsc.dsc$a_pointer = errstring;
	304
3aa477f6 RL	305	*sym = NULL;
3aa477f6 RL	306
0e05f545 RL	307	status = sys$getmsg(status, &length, &errstring_dsc, 1, 0);
	308
	309	if (!$VMS_STATUS_SUCCESS(status))
	310	lib$signal(status); /* This is really bad. Abort! */
	311	else
	312	{
	313	errstring[length] = '\0';
	314
	315	DSOerr(DSO_F_VMS_BIND_VAR,DSO_R_SYM_FAILURE);
	316	if (ptr->imagename_dsc.dsc$w_length)
	317	ERR_add_error_data(9,
	318	"Symbol ", symname,
	319	" in ", ptr->filename,
	320	" (", ptr->imagename, ")",
	321	": ", errstring);
	322	else
	323	ERR_add_error_data(6,
	324	"Symbol ", symname,
	325	" in ", ptr->filename,
	326	": ", errstring);
	327	}
3aa477f6	328	return;
0e05f545	329	}
3aa477f6	330	return;
0e05f545 RL	331	}
	332
	333	static void vms_bind_var(DSO dso, const char *symname)
	334	{
3aa477f6 RL	335	void *sym = 0;
	336	vms_bind_sym(dso, symname, &sym);
	337	return sym;
0e05f545 RL	338	}
	339
	340	static DSO_FUNC_TYPE vms_bind_func(DSO dso, const char symname)
	341	{
3aa477f6	342	DSO_FUNC_TYPE sym = 0;
4534fb1c	343	vms_bind_sym(dso, symname, (void **)&sym);
3aa477f6	344	return sym;
0e05f545 RL	345	}
0e05f545 RL	346
0e05f545	347	#endif /* VMS */