[thirdparty/openssl.git] / crypto / dso / 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 "dso_locl.h"

#ifdef OPENSSL_SYS_VMS

# pragma message disable DOLLARID
# include <errno.h>
# include <rms.h>
# include <lib$routines.h>
# include <libfisdef.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 DSO_FUNC_TYPE vms_bind_func(DSO *dso, const char *symname);
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_func,
    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_openssl(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 */
    const char *ext = NULL;     /* possible extension to add */

    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 there is a period and the next character is a semi-colon,
     * we need to add an extension
     */
    if (sp2 != NULL && sp2[1] == ';')
        ext = ".EXE";
    /*
     * 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, ';');
        ext = ".EXE";
    }
    /*
     * 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(*p));
    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';
    if (ext) {
        strcat(p->imagename, ext);
        if (*sp2 == '.')
            sp2++;
    }
    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! */
    OPENSSL_free(p);
    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;
# ifdef LIB$M_FIS_MIXEDCASE
    int flags = LIB$M_FIS_MIXEDCASE;
# else
    int flags = (1 << 4);
# 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 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 == NULL)
        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);
    if (not_translated != NULL)
        strcpy(not_translated, filename);
    return (not_translated);
}

#endif                          /* OPENSSL_SYS_VMS */
Commit	Line	Data
0f113f3e MC	1	/*
	2	* Written by Richard Levitte (richard@levitte.org) for the OpenSSL project
	3	* 2000.
0e05f545 RL	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
0f113f3e	13	* notice, this list of conditions and the following disclaimer.
0e05f545 RL	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
73decf59	59	#include "dso_locl.h"
da12bfca	60
38186bfd	61	#ifdef OPENSSL_SYS_VMS
da12bfca	62
0f113f3e	63	# pragma message disable DOLLARID
73decf59	64	# include <errno.h>
0f113f3e MC	65	# include <rms.h>
0f113f3e MC	66	# include <lib$routines.h>
828d04af	67	# include <libfisdef.h>
0f113f3e MC	68	# include <stsdef.h>
	69	# include <descrip.h>
	70	# include <starlet.h>
3dc9589c	71	# include "../vms_rms.h"
537c9823 RL	72
537c9823 RL	73	/* Some compiler options may mask the declaration of "_malloc32". */
0f113f3e MC	74	# if __INITIAL_POINTER_SIZE && defined _ANSI_C_SOURCE
	75	# if __INITIAL_POINTER_SIZE == 64
	76	# pragma pointer_size save
	77	# pragma pointer_size 32
	78	void *_malloc32(__size_t);
	79	# pragma pointer_size restore
	80	# endif /* __INITIAL_POINTER_SIZE == 64 */
	81	# endif /* __INITIAL_POINTER_SIZE && defined
	82	* _ANSI_C_SOURCE */
	83
	84	# pragma message disable DOLLARID
0e05f545	85
51c8dc37	86	static int vms_load(DSO *dso);
0e05f545	87	static int vms_unload(DSO *dso);
0e05f545	88	static DSO_FUNC_TYPE vms_bind_func(DSO dso, const char symname);
03c4d82f	89	static char vms_name_converter(DSO dso, const char *filename);
cbecb3ac	90	static char vms_merger(DSO dso, const char *filespec1,
0f113f3e	91	const char *filespec2);
0e05f545 RL	92
0e05f545 RL	93	static DSO_METHOD dso_meth_vms = {
0f113f3e MC	94	"OpenSSL 'VMS' shared library method",
	95	vms_load,
	96	NULL, /* unload */
0f113f3e	97	vms_bind_func,
0f113f3e MC	98	NULL, /* ctrl */
	99	vms_name_converter,
	100	vms_merger,
	101	NULL, /* init */
	102	NULL /* finish */
	103	};
	104
	105	/*
	106	* On VMS, the only "handle" is the file name. LIB$FIND_IMAGE_SYMBOL depends
0e05f545 RL	107	* on the reference to the file name being the same for all calls regarding
	108	* one shared image, so we'll just store it in an instance of the following
	109	* structure and put a pointer to that instance in the meth_data stack.
	110	*/
0f113f3e MC	111	typedef struct dso_internal_st {
	112	/*
	113	* This should contain the name only, no directory, no extension, nothing
	114	* but a name.
	115	*/
	116	struct dsc$descriptor_s filename_dsc;
	117	char filename[NAMX_MAXRSS + 1];
	118	/*
	119	* This contains whatever is not in filename, if needed. Normally not
	120	* defined.
	121	*/
	122	struct dsc$descriptor_s imagename_dsc;
	123	char imagename[NAMX_MAXRSS + 1];
	124	} DSO_VMS_INTERNAL;
0e05f545	125
38186bfd	126	DSO_METHOD *DSO_METHOD_openssl(void)
0f113f3e	127	{
38186bfd	128	return &dso_meth_vms;
0f113f3e	129	}
0e05f545	130
51c8dc37	131	static int vms_load(DSO *dso)
0f113f3e MC	132	{
	133	void *ptr = NULL;
	134	/* See applicable comments in dso_dl.c */
	135	char *filename = DSO_convert_filename(dso, NULL);
537c9823 RL	136
537c9823 RL	137	/* Ensure 32-bit pointer for "p", and appropriate malloc() function. */
0f113f3e MC	138	# if __INITIAL_POINTER_SIZE == 64
	139	# define DSO_MALLOC _malloc32
	140	# pragma pointer_size save
	141	# pragma pointer_size 32
	142	# else /* __INITIAL_POINTER_SIZE == 64 */
	143	# define DSO_MALLOC OPENSSL_malloc
	144	# endif /* __INITIAL_POINTER_SIZE == 64 [else] */
	145
	146	DSO_VMS_INTERNAL *p = NULL;
	147
	148	# if __INITIAL_POINTER_SIZE == 64
	149	# pragma pointer_size restore
	150	# endif /* __INITIAL_POINTER_SIZE == 64 */
	151
	152	const char sp1, sp2; /* Search result */
dccd20d1	153	const char ext = NULL; / possible extension to add */
0f113f3e MC	154
	155	if (filename == NULL) {
	156	DSOerr(DSO_F_VMS_LOAD, DSO_R_NO_FILENAME);
	157	goto err;
	158	}
	159
50e735f9 MC	160	/*-
	161	* A file specification may look like this:
	162	*
	163	* node::dev:[dir-spec]name.type;ver
	164	*
	165	* or (for compatibility with TOPS-20):
	166	*
	167	* node::dev:<dir-spec>name.type;ver
	168	*
	169	* and the dir-spec uses '.' as separator. Also, a dir-spec
	170	* may consist of several parts, with mixed use of [] and <>:
	171	*
	172	* [dir1.]<dir2>
	173	*
	174	* We need to split the file specification into the name and
	175	* the rest (both before and after the name itself).
	176	*/
0f113f3e MC	177	/*
	178	* Start with trying to find the end of a dir-spec, and save the position
	179	* of the byte after in sp1
	180	*/
	181	sp1 = strrchr(filename, ']');
	182	sp2 = strrchr(filename, '>');
	183	if (sp1 == NULL)
	184	sp1 = sp2;
	185	if (sp2 != NULL && sp2 > sp1)
	186	sp1 = sp2;
	187	if (sp1 == NULL)
	188	sp1 = strrchr(filename, ':');
	189	if (sp1 == NULL)
	190	sp1 = filename;
	191	else
	192	sp1++; /* The byte after the found character */
	193	/* Now, let's see if there's a type, and save the position in sp2 */
	194	sp2 = strchr(sp1, '.');
be7b1097 RL	195	/*
	196	* If there is a period and the next character is a semi-colon,
	197	* we need to add an extension
	198	*/
	199	if (sp2 != NULL && sp2[1] == ';')
	200	ext = ".EXE";
0f113f3e MC	201	/*
	202	* If we found it, that's where we'll cut. Otherwise, look for a version
	203	* number and save the position in sp2
	204	*/
be7b1097	205	if (sp2 == NULL) {
0f113f3e	206	sp2 = strchr(sp1, ';');
be7b1097 RL	207	ext = ".EXE";
be7b1097 RL	208	}
0f113f3e MC	209	/*
	210	* If there was still nothing to find, set sp2 to point at the end of the
	211	* string
	212	*/
	213	if (sp2 == NULL)
	214	sp2 = sp1 + strlen(sp1);
	215
	216	/* Check that we won't get buffer overflows */
	217	if (sp2 - sp1 > FILENAME_MAX
	218	\|\| (sp1 - filename) + strlen(sp2) > FILENAME_MAX) {
	219	DSOerr(DSO_F_VMS_LOAD, DSO_R_FILENAME_TOO_BIG);
	220	goto err;
	221	}
	222
b4faea50	223	p = DSO_MALLOC(sizeof(*p));
0f113f3e MC	224	if (p == NULL) {
	225	DSOerr(DSO_F_VMS_LOAD, ERR_R_MALLOC_FAILURE);
	226	goto err;
	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';
be7b1097 RL	234	if (ext) {
	235	strcat(p->imagename, ext);
	236	if (*sp2 == '.')
	237	sp2++;
	238	}
0f113f3e MC	239	strcat(p->imagename, sp2);
	240
	241	p->filename_dsc.dsc$w_length = strlen(p->filename);
	242	p->filename_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
	243	p->filename_dsc.dsc$b_class = DSC$K_CLASS_S;
	244	p->filename_dsc.dsc$a_pointer = p->filename;
	245	p->imagename_dsc.dsc$w_length = strlen(p->imagename);
	246	p->imagename_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
	247	p->imagename_dsc.dsc$b_class = DSC$K_CLASS_S;
	248	p->imagename_dsc.dsc$a_pointer = p->imagename;
	249
	250	if (!sk_void_push(dso->meth_data, (char *)p)) {
	251	DSOerr(DSO_F_VMS_LOAD, DSO_R_STACK_ERROR);
	252	goto err;
	253	}
	254
	255	/* Success (for now, we lie. We actually do not know...) */
	256	dso->loaded_filename = filename;
	257	return (1);
	258	err:
	259	/* Cleanup! */
b548a1f1 RS	260	OPENSSL_free(p);
b548a1f1 RS	261	OPENSSL_free(filename);
0f113f3e MC	262	return (0);
	263	}
	264
	265	/*
	266	* Note that this doesn't actually unload the shared image, as there is no
0e05f545 RL	267	* such thing in VMS. Next time it get loaded again, a new copy will
	268	* actually be loaded.
	269	*/
	270	static int vms_unload(DSO *dso)
0f113f3e MC	271	{
	272	DSO_VMS_INTERNAL *p;
	273	if (dso == NULL) {
	274	DSOerr(DSO_F_VMS_UNLOAD, ERR_R_PASSED_NULL_PARAMETER);
	275	return (0);
	276	}
	277	if (sk_void_num(dso->meth_data) < 1)
	278	return (1);
	279	p = (DSO_VMS_INTERNAL *)sk_void_pop(dso->meth_data);
	280	if (p == NULL) {
	281	DSOerr(DSO_F_VMS_UNLOAD, DSO_R_NULL_HANDLE);
	282	return (0);
	283	}
	284	/* Cleanup */
	285	OPENSSL_free(p);
	286	return (1);
	287	}
	288
	289	/*
	290	* We must do this in a separate function because of the way the exception
	291	* handler works (it makes this function return
	292	*/
0e05f545	293	static int do_find_symbol(DSO_VMS_INTERNAL *ptr,
0f113f3e MC	294	struct dsc$descriptor_s symname_dsc, void *sym,
	295	unsigned long flags)
	296	{
	297	/*
	298	* Make sure that signals are caught and returned instead of aborting the
	299	* program. The exception handler gets unestablished automatically on
	300	* return from this function.
	301	*/
	302	lib$establish(lib$sig_to_ret);
	303
	304	if (ptr->imagename_dsc.dsc$w_length)
	305	return lib$find_image_symbol(&ptr->filename_dsc,
	306	symname_dsc, sym,
	307	&ptr->imagename_dsc, flags);
	308	else
	309	return lib$find_image_symbol(&ptr->filename_dsc,
	310	symname_dsc, sym, 0, flags);
	311	}
0e05f545	312
3aa477f6	313	void vms_bind_sym(DSO dso, const char symname, void **sym)
0f113f3e MC	314	{
	315	DSO_VMS_INTERNAL *ptr;
	316	int status;
828d04af RL	317	# ifdef LIB$M_FIS_MIXEDCASE
828d04af RL	318	int flags = LIB$M_FIS_MIXEDCASE;
0f113f3e	319	# else
828d04af	320	int flags = (1 << 4);
0f113f3e MC	321	# endif
0f113f3e MC	322	struct dsc$descriptor_s symname_dsc;
0e05f545	323
537c9823	324	/* Arrange 32-bit pointer to (copied) string storage, if needed. */
0f113f3e MC	325	# if __INITIAL_POINTER_SIZE == 64
	326	# define SYMNAME symname_32p
	327	# pragma pointer_size save
	328	# pragma pointer_size 32
	329	char *symname_32p;
	330	# pragma pointer_size restore
	331	char symname_32[NAMX_MAXRSS + 1];
	332	# else /* __INITIAL_POINTER_SIZE == 64 */
	333	# define SYMNAME ((char *) symname)
	334	# endif /* __INITIAL_POINTER_SIZE == 64 [else] */
	335
	336	*sym = NULL;
	337
	338	if ((dso == NULL) \|\| (symname == NULL)) {
	339	DSOerr(DSO_F_VMS_BIND_SYM, ERR_R_PASSED_NULL_PARAMETER);
	340	return;
	341	}
	342	# if __INITIAL_POINTER_SIZE == 64
	343	/* Copy the symbol name to storage with a 32-bit pointer. */
	344	symname_32p = symname_32;
	345	strcpy(symname_32p, symname);
	346	# endif /* __INITIAL_POINTER_SIZE == 64 [else] */
	347
	348	symname_dsc.dsc$w_length = strlen(SYMNAME);
	349	symname_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
	350	symname_dsc.dsc$b_class = DSC$K_CLASS_S;
	351	symname_dsc.dsc$a_pointer = SYMNAME;
	352
	353	if (sk_void_num(dso->meth_data) < 1) {
	354	DSOerr(DSO_F_VMS_BIND_SYM, DSO_R_STACK_ERROR);
	355	return;
	356	}
	357	ptr = (DSO_VMS_INTERNAL *)sk_void_value(dso->meth_data,
	358	sk_void_num(dso->meth_data) - 1);
	359	if (ptr == NULL) {
	360	DSOerr(DSO_F_VMS_BIND_SYM, DSO_R_NULL_HANDLE);
	361	return;
	362	}
	363
	364	if (dso->flags & DSO_FLAG_UPCASE_SYMBOL)
	365	flags = 0;
	366
	367	status = do_find_symbol(ptr, &symname_dsc, sym, flags);
	368
	369	if (!$VMS_STATUS_SUCCESS(status)) {
	370	unsigned short length;
	371	char errstring[257];
	372	struct dsc$descriptor_s errstring_dsc;
	373
	374	errstring_dsc.dsc$w_length = sizeof(errstring);
	375	errstring_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
	376	errstring_dsc.dsc$b_class = DSC$K_CLASS_S;
	377	errstring_dsc.dsc$a_pointer = errstring;
	378
	379	*sym = NULL;
	380
	381	status = sys$getmsg(status, &length, &errstring_dsc, 1, 0);
	382
	383	if (!$VMS_STATUS_SUCCESS(status))
	384	lib$signal(status); /* This is really bad. Abort! */
	385	else {
	386	errstring[length] = '\0';
	387
	388	DSOerr(DSO_F_VMS_BIND_SYM, DSO_R_SYM_FAILURE);
389	if (ptr->imagename_dsc.dsc$w_length)
390	ERR_add_error_data(9,
391	"Symbol ", symname,
392	" in ", ptr->filename,
393	" (", ptr->imagename, ")",
394	": ", errstring);
395	else
396	ERR_add_error_data(6,
397	"Symbol ", symname,
398	" in ", ptr->filename, ": ", errstring);
399	}
400	return;
401	}
402	return;
403	}
0e05f545	404
0e05f545	405	static DSO_FUNC_TYPE vms_bind_func(DSO dso, const char symname)
0f113f3e MC	406	{
	407	DSO_FUNC_TYPE sym = 0;
	408	vms_bind_sym(dso, symname, (void **)&sym);
	409	return sym;
	410	}
	411
	412	static char vms_merger(DSO dso, const char *filespec1,
	413	const char *filespec2)
	414	{
	415	int status;
	416	int filespec1len, filespec2len;
	417	struct FAB fab;
	418	struct NAMX_STRUCT nam;
	419	char esa[NAMX_MAXRSS + 1];
	420	char *merged;
cbecb3ac	421
537c9823	422	/* Arrange 32-bit pointer to (copied) string storage, if needed. */
0f113f3e MC	423	# if __INITIAL_POINTER_SIZE == 64
	424	# define FILESPEC1 filespec1_32p;
	425	# define FILESPEC2 filespec2_32p;
	426	# pragma pointer_size save
	427	# pragma pointer_size 32
	428	char *filespec1_32p;
	429	char *filespec2_32p;
	430	# pragma pointer_size restore
	431	char filespec1_32[NAMX_MAXRSS + 1];
	432	char filespec2_32[NAMX_MAXRSS + 1];
	433	# else /* __INITIAL_POINTER_SIZE == 64 */
	434	# define FILESPEC1 ((char *) filespec1)
	435	# define FILESPEC2 ((char *) filespec2)
	436	# endif /* __INITIAL_POINTER_SIZE == 64 [else] */
	437
	438	if (!filespec1)
	439	filespec1 = "";
	440	if (!filespec2)
	441	filespec2 = "";
	442	filespec1len = strlen(filespec1);
	443	filespec2len = strlen(filespec2);
	444
	445	# if __INITIAL_POINTER_SIZE == 64
	446	/* Copy the file names to storage with a 32-bit pointer. */
	447	filespec1_32p = filespec1_32;
	448	filespec2_32p = filespec2_32;
	449	strcpy(filespec1_32p, filespec1);
	450	strcpy(filespec2_32p, filespec2);
	451	# endif /* __INITIAL_POINTER_SIZE == 64 [else] */
	452
	453	fab = cc$rms_fab;
	454	nam = CC_RMS_NAMX;
	455
	456	FAB_OR_NAML(fab, nam).FAB_OR_NAML_FNA = FILESPEC1;
	457	FAB_OR_NAML(fab, nam).FAB_OR_NAML_FNS = filespec1len;
	458	FAB_OR_NAML(fab, nam).FAB_OR_NAML_DNA = FILESPEC2;
	459	FAB_OR_NAML(fab, nam).FAB_OR_NAML_DNS = filespec2len;
	460	NAMX_DNA_FNA_SET(fab)
	461
	462	nam.NAMX_ESA = esa;
	463	nam.NAMX_ESS = NAMX_MAXRSS;
	464	nam.NAMX_NOP = NAM$M_SYNCHK \| NAM$M_PWD;
	465	SET_NAMX_NO_SHORT_UPCASE(nam);
	466
	467	fab.FAB_NAMX = &nam;
	468
	469	status = sys$parse(&fab, 0, 0);
	470
	471	if (!$VMS_STATUS_SUCCESS(status)) {
	472	unsigned short length;
	473	char errstring[257];
	474	struct dsc$descriptor_s errstring_dsc;
	475
	476	errstring_dsc.dsc$w_length = sizeof(errstring);
	477	errstring_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
	478	errstring_dsc.dsc$b_class = DSC$K_CLASS_S;
	479	errstring_dsc.dsc$a_pointer = errstring;
	480
	481	status = sys$getmsg(status, &length, &errstring_dsc, 1, 0);
	482
	483	if (!$VMS_STATUS_SUCCESS(status))
	484	lib$signal(status); /* This is really bad. Abort! */
	485	else {
	486	errstring[length] = '\0';
487
488	DSOerr(DSO_F_VMS_MERGER, DSO_R_FAILURE);
489	ERR_add_error_data(7,
490	"filespec \"", filespec1, "\", ",
491	"defaults \"", filespec2, "\": ", errstring);
492	}
493	return (NULL);
494	}
495
496	merged = OPENSSL_malloc(nam.NAMX_ESL + 1);
90945fa3	497	if (merged == NULL)
0f113f3e MC	498	goto malloc_err;
	499	strncpy(merged, nam.NAMX_ESA, nam.NAMX_ESL);
	500	merged[nam.NAMX_ESL] = '\0';
	501	return (merged);
cbecb3ac	502	malloc_err:
0f113f3e MC	503	DSOerr(DSO_F_VMS_MERGER, ERR_R_MALLOC_FAILURE);
0f113f3e MC	504	}
cbecb3ac	505
856d456a	506	static char vms_name_converter(DSO dso, const char *filename)
0f113f3e MC	507	{
	508	int len = strlen(filename);
	509	char *not_translated = OPENSSL_malloc(len + 1);
90945fa3	510	if (not_translated != NULL)
918bb865	511	strcpy(not_translated, filename);
0f113f3e MC	512	return (not_translated);
	513	}
	514
	515	#endif /* OPENSSL_SYS_VMS */