[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"

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

# pragma message disable DOLLARID
# include <errno.h>
# 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);
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,
    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 */
    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;
# 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 == 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 GT	60
	61	#ifndef OPENSSL_SYS_VMS
	62	DSO_METHOD *DSO_METHOD_vms(void)
0f113f3e MC	63	{
	64	return NULL;
	65	}
da12bfca GT	66	#else
da12bfca GT	67
0f113f3e	68	# pragma message disable DOLLARID
73decf59	69	# include <errno.h>
0f113f3e MC	70	# include <rms.h>
	71	# include <lib$routines.h>
	72	# include <stsdef.h>
	73	# include <descrip.h>
	74	# include <starlet.h>
3dc9589c	75	# include "../vms_rms.h"
537c9823 RL	76
537c9823 RL	77	/* Some compiler options may mask the declaration of "_malloc32". */
0f113f3e MC	78	# if __INITIAL_POINTER_SIZE && defined _ANSI_C_SOURCE
	79	# if __INITIAL_POINTER_SIZE == 64
	80	# pragma pointer_size save
	81	# pragma pointer_size 32
	82	void *_malloc32(__size_t);
	83	# pragma pointer_size restore
	84	# endif /* __INITIAL_POINTER_SIZE == 64 */
	85	# endif /* __INITIAL_POINTER_SIZE && defined
	86	* _ANSI_C_SOURCE */
	87
	88	# pragma message disable DOLLARID
0e05f545	89
51c8dc37	90	static int vms_load(DSO *dso);
0e05f545 RL	91	static int vms_unload(DSO *dso);
	92	static void vms_bind_var(DSO dso, const char *symname);
	93	static DSO_FUNC_TYPE vms_bind_func(DSO dso, const char symname);
03c4d82f	94	static char vms_name_converter(DSO dso, const char *filename);
cbecb3ac	95	static char vms_merger(DSO dso, const char *filespec1,
0f113f3e	96	const char *filespec2);
0e05f545 RL	97
0e05f545 RL	98	static DSO_METHOD dso_meth_vms = {
0f113f3e MC	99	"OpenSSL 'VMS' shared library method",
	100	vms_load,
	101	NULL, /* unload */
	102	vms_bind_var,
	103	vms_bind_func,
0f113f3e MC	104	NULL, /* ctrl */
	105	vms_name_converter,
	106	vms_merger,
	107	NULL, /* init */
	108	NULL /* finish */
	109	};
	110
	111	/*
	112	* On VMS, the only "handle" is the file name. LIB$FIND_IMAGE_SYMBOL depends
0e05f545 RL	113	* on the reference to the file name being the same for all calls regarding
	114	* one shared image, so we'll just store it in an instance of the following
	115	* structure and put a pointer to that instance in the meth_data stack.
	116	*/
0f113f3e MC	117	typedef struct dso_internal_st {
	118	/*
	119	* This should contain the name only, no directory, no extension, nothing
	120	* but a name.
	121	*/
	122	struct dsc$descriptor_s filename_dsc;
	123	char filename[NAMX_MAXRSS + 1];
	124	/*
	125	* This contains whatever is not in filename, if needed. Normally not
	126	* defined.
	127	*/
	128	struct dsc$descriptor_s imagename_dsc;
	129	char imagename[NAMX_MAXRSS + 1];
	130	} DSO_VMS_INTERNAL;
0e05f545	131
0e05f545	132	DSO_METHOD *DSO_METHOD_vms(void)
0f113f3e MC	133	{
	134	return (&dso_meth_vms);
	135	}
0e05f545	136
51c8dc37	137	static int vms_load(DSO *dso)
0f113f3e MC	138	{
	139	void *ptr = NULL;
	140	/* See applicable comments in dso_dl.c */
	141	char *filename = DSO_convert_filename(dso, NULL);
537c9823 RL	142
537c9823 RL	143	/* Ensure 32-bit pointer for "p", and appropriate malloc() function. */
0f113f3e MC	144	# if __INITIAL_POINTER_SIZE == 64
	145	# define DSO_MALLOC _malloc32
	146	# pragma pointer_size save
	147	# pragma pointer_size 32
	148	# else /* __INITIAL_POINTER_SIZE == 64 */
	149	# define DSO_MALLOC OPENSSL_malloc
	150	# endif /* __INITIAL_POINTER_SIZE == 64 [else] */
	151
	152	DSO_VMS_INTERNAL *p = NULL;
	153
	154	# if __INITIAL_POINTER_SIZE == 64
	155	# pragma pointer_size restore
	156	# endif /* __INITIAL_POINTER_SIZE == 64 */
	157
	158	const char sp1, sp2; /* Search result */
be7b1097	159	const char ext = NULL; / possible extension to add */
0f113f3e MC	160
	161	if (filename == NULL) {
	162	DSOerr(DSO_F_VMS_LOAD, DSO_R_NO_FILENAME);
	163	goto err;
	164	}
	165
50e735f9 MC	166	/*-
	167	* A file specification may look like this:
	168	*
	169	* node::dev:[dir-spec]name.type;ver
	170	*
	171	* or (for compatibility with TOPS-20):
	172	*
	173	* node::dev:<dir-spec>name.type;ver
	174	*
	175	* and the dir-spec uses '.' as separator. Also, a dir-spec
	176	* may consist of several parts, with mixed use of [] and <>:
	177	*
	178	* [dir1.]<dir2>
	179	*
	180	* We need to split the file specification into the name and
	181	* the rest (both before and after the name itself).
	182	*/
0f113f3e MC	183	/*
	184	* Start with trying to find the end of a dir-spec, and save the position
	185	* of the byte after in sp1
	186	*/
	187	sp1 = strrchr(filename, ']');
	188	sp2 = strrchr(filename, '>');
	189	if (sp1 == NULL)
	190	sp1 = sp2;
	191	if (sp2 != NULL && sp2 > sp1)
	192	sp1 = sp2;
	193	if (sp1 == NULL)
	194	sp1 = strrchr(filename, ':');
	195	if (sp1 == NULL)
	196	sp1 = filename;
	197	else
	198	sp1++; /* The byte after the found character */
	199	/* Now, let's see if there's a type, and save the position in sp2 */
	200	sp2 = strchr(sp1, '.');
be7b1097 RL	201	/*
	202	* If there is a period and the next character is a semi-colon,
	203	* we need to add an extension
	204	*/
	205	if (sp2 != NULL && sp2[1] == ';')
	206	ext = ".EXE";
0f113f3e MC	207	/*
	208	* If we found it, that's where we'll cut. Otherwise, look for a version
	209	* number and save the position in sp2
	210	*/
be7b1097	211	if (sp2 == NULL) {
0f113f3e	212	sp2 = strchr(sp1, ';');
be7b1097 RL	213	ext = ".EXE";
be7b1097 RL	214	}
0f113f3e MC	215	/*
	216	* If there was still nothing to find, set sp2 to point at the end of the
	217	* string
	218	*/
	219	if (sp2 == NULL)
	220	sp2 = sp1 + strlen(sp1);
	221
	222	/* Check that we won't get buffer overflows */
	223	if (sp2 - sp1 > FILENAME_MAX
	224	\|\| (sp1 - filename) + strlen(sp2) > FILENAME_MAX) {
	225	DSOerr(DSO_F_VMS_LOAD, DSO_R_FILENAME_TOO_BIG);
	226	goto err;
	227	}
	228
b4faea50	229	p = DSO_MALLOC(sizeof(*p));
0f113f3e MC	230	if (p == NULL) {
	231	DSOerr(DSO_F_VMS_LOAD, ERR_R_MALLOC_FAILURE);
	232	goto err;
	233	}
	234
	235	strncpy(p->filename, sp1, sp2 - sp1);
	236	p->filename[sp2 - sp1] = '\0';
	237
	238	strncpy(p->imagename, filename, sp1 - filename);
	239	p->imagename[sp1 - filename] = '\0';
be7b1097 RL	240	if (ext) {
	241	strcat(p->imagename, ext);
	242	if (*sp2 == '.')
	243	sp2++;
	244	}
0f113f3e MC	245	strcat(p->imagename, sp2);
	246
	247	p->filename_dsc.dsc$w_length = strlen(p->filename);
	248	p->filename_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
	249	p->filename_dsc.dsc$b_class = DSC$K_CLASS_S;
	250	p->filename_dsc.dsc$a_pointer = p->filename;
	251	p->imagename_dsc.dsc$w_length = strlen(p->imagename);
	252	p->imagename_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
	253	p->imagename_dsc.dsc$b_class = DSC$K_CLASS_S;
	254	p->imagename_dsc.dsc$a_pointer = p->imagename;
	255
	256	if (!sk_void_push(dso->meth_data, (char *)p)) {
	257	DSOerr(DSO_F_VMS_LOAD, DSO_R_STACK_ERROR);
	258	goto err;
	259	}
	260
	261	/* Success (for now, we lie. We actually do not know...) */
	262	dso->loaded_filename = filename;
	263	return (1);
	264	err:
	265	/* Cleanup! */
b548a1f1 RS	266	OPENSSL_free(p);
b548a1f1 RS	267	OPENSSL_free(filename);
0f113f3e MC	268	return (0);
	269	}
	270
	271	/*
	272	* Note that this doesn't actually unload the shared image, as there is no
0e05f545 RL	273	* such thing in VMS. Next time it get loaded again, a new copy will
	274	* actually be loaded.
	275	*/
	276	static int vms_unload(DSO *dso)
0f113f3e MC	277	{
	278	DSO_VMS_INTERNAL *p;
	279	if (dso == NULL) {
	280	DSOerr(DSO_F_VMS_UNLOAD, ERR_R_PASSED_NULL_PARAMETER);
	281	return (0);
	282	}
	283	if (sk_void_num(dso->meth_data) < 1)
	284	return (1);
	285	p = (DSO_VMS_INTERNAL *)sk_void_pop(dso->meth_data);
	286	if (p == NULL) {
	287	DSOerr(DSO_F_VMS_UNLOAD, DSO_R_NULL_HANDLE);
	288	return (0);
	289	}
	290	/* Cleanup */
	291	OPENSSL_free(p);
	292	return (1);
	293	}
	294
	295	/*
	296	* We must do this in a separate function because of the way the exception
	297	* handler works (it makes this function return
	298	*/
0e05f545	299	static int do_find_symbol(DSO_VMS_INTERNAL *ptr,
0f113f3e MC	300	struct dsc$descriptor_s symname_dsc, void *sym,
	301	unsigned long flags)
	302	{
	303	/*
	304	* Make sure that signals are caught and returned instead of aborting the
	305	* program. The exception handler gets unestablished automatically on
	306	* return from this function.
	307	*/
	308	lib$establish(lib$sig_to_ret);
	309
	310	if (ptr->imagename_dsc.dsc$w_length)
	311	return lib$find_image_symbol(&ptr->filename_dsc,
	312	symname_dsc, sym,
	313	&ptr->imagename_dsc, flags);
	314	else
	315	return lib$find_image_symbol(&ptr->filename_dsc,
	316	symname_dsc, sym, 0, flags);
	317	}
0e05f545	318
3aa477f6	319	void vms_bind_sym(DSO dso, const char symname, void **sym)
0f113f3e MC	320	{
	321	DSO_VMS_INTERNAL *ptr;
	322	int status;
	323	# if 0
	324	int flags = (1 << 4); /* LIB$M_FIS_MIXEDCASE, but this symbol isn't
	325	* defined in VMS older than 7.0 or so */
	326	# else
	327	int flags = 0;
	328	# endif
	329	struct dsc$descriptor_s symname_dsc;
0e05f545	330
537c9823	331	/* Arrange 32-bit pointer to (copied) string storage, if needed. */
0f113f3e MC	332	# if __INITIAL_POINTER_SIZE == 64
	333	# define SYMNAME symname_32p
	334	# pragma pointer_size save
	335	# pragma pointer_size 32
	336	char *symname_32p;
	337	# pragma pointer_size restore
	338	char symname_32[NAMX_MAXRSS + 1];
	339	# else /* __INITIAL_POINTER_SIZE == 64 */
	340	# define SYMNAME ((char *) symname)
	341	# endif /* __INITIAL_POINTER_SIZE == 64 [else] */
	342
	343	*sym = NULL;
	344
	345	if ((dso == NULL) \|\| (symname == NULL)) {
	346	DSOerr(DSO_F_VMS_BIND_SYM, ERR_R_PASSED_NULL_PARAMETER);
	347	return;
	348	}
	349	# if __INITIAL_POINTER_SIZE == 64
	350	/* Copy the symbol name to storage with a 32-bit pointer. */
	351	symname_32p = symname_32;
	352	strcpy(symname_32p, symname);
	353	# endif /* __INITIAL_POINTER_SIZE == 64 [else] */
	354
	355	symname_dsc.dsc$w_length = strlen(SYMNAME);
	356	symname_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
	357	symname_dsc.dsc$b_class = DSC$K_CLASS_S;
	358	symname_dsc.dsc$a_pointer = SYMNAME;
	359
	360	if (sk_void_num(dso->meth_data) < 1) {
	361	DSOerr(DSO_F_VMS_BIND_SYM, DSO_R_STACK_ERROR);
	362	return;
	363	}
	364	ptr = (DSO_VMS_INTERNAL *)sk_void_value(dso->meth_data,
	365	sk_void_num(dso->meth_data) - 1);
	366	if (ptr == NULL) {
	367	DSOerr(DSO_F_VMS_BIND_SYM, DSO_R_NULL_HANDLE);
	368	return;
	369	}
	370
	371	if (dso->flags & DSO_FLAG_UPCASE_SYMBOL)
	372	flags = 0;
	373
	374	status = do_find_symbol(ptr, &symname_dsc, sym, flags);
	375
	376	if (!$VMS_STATUS_SUCCESS(status)) {
	377	unsigned short length;
	378	char errstring[257];
	379	struct dsc$descriptor_s errstring_dsc;
	380
	381	errstring_dsc.dsc$w_length = sizeof(errstring);
	382	errstring_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
	383	errstring_dsc.dsc$b_class = DSC$K_CLASS_S;
	384	errstring_dsc.dsc$a_pointer = errstring;
	385
	386	*sym = NULL;
	387
	388	status = sys$getmsg(status, &length, &errstring_dsc, 1, 0);
	389
	390	if (!$VMS_STATUS_SUCCESS(status))
	391	lib$signal(status); /* This is really bad. Abort! */
	392	else {
	393	errstring[length] = '\0';
	394
	395	DSOerr(DSO_F_VMS_BIND_SYM, DSO_R_SYM_FAILURE);
396	if (ptr->imagename_dsc.dsc$w_length)
397	ERR_add_error_data(9,
398	"Symbol ", symname,
399	" in ", ptr->filename,
400	" (", ptr->imagename, ")",
401	": ", errstring);
402	else
403	ERR_add_error_data(6,
404	"Symbol ", symname,
405	" in ", ptr->filename, ": ", errstring);
406	}
407	return;
408	}
409	return;
410	}
0e05f545 RL	411
0e05f545 RL	412	static void vms_bind_var(DSO dso, const char *symname)
0f113f3e MC	413	{
	414	void *sym = 0;
	415	vms_bind_sym(dso, symname, &sym);
	416	return sym;
	417	}
0e05f545 RL	418
0e05f545 RL	419	static DSO_FUNC_TYPE vms_bind_func(DSO dso, const char symname)
0f113f3e MC	420	{
	421	DSO_FUNC_TYPE sym = 0;
	422	vms_bind_sym(dso, symname, (void **)&sym);
	423	return sym;
	424	}
	425
	426	static char vms_merger(DSO dso, const char *filespec1,
	427	const char *filespec2)
	428	{
	429	int status;
	430	int filespec1len, filespec2len;
	431	struct FAB fab;
	432	struct NAMX_STRUCT nam;
	433	char esa[NAMX_MAXRSS + 1];
	434	char *merged;
cbecb3ac	435
537c9823	436	/* Arrange 32-bit pointer to (copied) string storage, if needed. */
0f113f3e MC	437	# if __INITIAL_POINTER_SIZE == 64
	438	# define FILESPEC1 filespec1_32p;
	439	# define FILESPEC2 filespec2_32p;
	440	# pragma pointer_size save
	441	# pragma pointer_size 32
	442	char *filespec1_32p;
	443	char *filespec2_32p;
	444	# pragma pointer_size restore
	445	char filespec1_32[NAMX_MAXRSS + 1];
	446	char filespec2_32[NAMX_MAXRSS + 1];
	447	# else /* __INITIAL_POINTER_SIZE == 64 */
	448	# define FILESPEC1 ((char *) filespec1)
	449	# define FILESPEC2 ((char *) filespec2)
	450	# endif /* __INITIAL_POINTER_SIZE == 64 [else] */
	451
	452	if (!filespec1)
	453	filespec1 = "";
	454	if (!filespec2)
	455	filespec2 = "";
	456	filespec1len = strlen(filespec1);
	457	filespec2len = strlen(filespec2);
	458
	459	# if __INITIAL_POINTER_SIZE == 64
	460	/* Copy the file names to storage with a 32-bit pointer. */
	461	filespec1_32p = filespec1_32;
	462	filespec2_32p = filespec2_32;
	463	strcpy(filespec1_32p, filespec1);
	464	strcpy(filespec2_32p, filespec2);
	465	# endif /* __INITIAL_POINTER_SIZE == 64 [else] */
	466
	467	fab = cc$rms_fab;
	468	nam = CC_RMS_NAMX;
	469
	470	FAB_OR_NAML(fab, nam).FAB_OR_NAML_FNA = FILESPEC1;
	471	FAB_OR_NAML(fab, nam).FAB_OR_NAML_FNS = filespec1len;
	472	FAB_OR_NAML(fab, nam).FAB_OR_NAML_DNA = FILESPEC2;
	473	FAB_OR_NAML(fab, nam).FAB_OR_NAML_DNS = filespec2len;
	474	NAMX_DNA_FNA_SET(fab)
	475
	476	nam.NAMX_ESA = esa;
	477	nam.NAMX_ESS = NAMX_MAXRSS;
	478	nam.NAMX_NOP = NAM$M_SYNCHK \| NAM$M_PWD;
	479	SET_NAMX_NO_SHORT_UPCASE(nam);
	480
	481	fab.FAB_NAMX = &nam;
	482
	483	status = sys$parse(&fab, 0, 0);
	484
	485	if (!$VMS_STATUS_SUCCESS(status)) {
	486	unsigned short length;
	487	char errstring[257];
	488	struct dsc$descriptor_s errstring_dsc;
	489
	490	errstring_dsc.dsc$w_length = sizeof(errstring);
	491	errstring_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
	492	errstring_dsc.dsc$b_class = DSC$K_CLASS_S;
	493	errstring_dsc.dsc$a_pointer = errstring;
	494
	495	status = sys$getmsg(status, &length, &errstring_dsc, 1, 0);
	496
	497	if (!$VMS_STATUS_SUCCESS(status))
	498	lib$signal(status); /* This is really bad. Abort! */
	499	else {
	500	errstring[length] = '\0';
501
502	DSOerr(DSO_F_VMS_MERGER, DSO_R_FAILURE);
503	ERR_add_error_data(7,
504	"filespec \"", filespec1, "\", ",
505	"defaults \"", filespec2, "\": ", errstring);
506	}
507	return (NULL);
508	}
509
510	merged = OPENSSL_malloc(nam.NAMX_ESL + 1);
90945fa3	511	if (merged == NULL)
0f113f3e MC	512	goto malloc_err;
	513	strncpy(merged, nam.NAMX_ESA, nam.NAMX_ESL);
	514	merged[nam.NAMX_ESL] = '\0';
	515	return (merged);
cbecb3ac	516	malloc_err:
0f113f3e MC	517	DSOerr(DSO_F_VMS_MERGER, ERR_R_MALLOC_FAILURE);
0f113f3e MC	518	}
cbecb3ac	519
856d456a	520	static char vms_name_converter(DSO dso, const char *filename)
0f113f3e MC	521	{
	522	int len = strlen(filename);
	523	char *not_translated = OPENSSL_malloc(len + 1);
90945fa3	524	if (not_translated != NULL)
918bb865	525	strcpy(not_translated, filename);
0f113f3e MC	526	return (not_translated);
	527	}
	528
	529	#endif /* OPENSSL_SYS_VMS */