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

/*
 * Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the OpenSSL license (the "License").  You may not use
 * this file except in compliance with the License.  You can obtain a copy
 * in the file LICENSE in the source distribution or at
 * https://www.openssl.org/source/license.html
 */

#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 */
    NULL,                       /* pathbyaddr */
    NULL                        /* globallookup */
};

/*
 * 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);
}

# ifndef LIB$M_FIS_MIXEDCASE
#  define LIB$M_FIS_MIXEDCASE (1 << 4);
# endif
void vms_bind_sym(DSO *dso, const char *symname, void **sym)
{
    DSO_VMS_INTERNAL *ptr;
    int status = 0;
    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;
    }

    status = do_find_symbol(ptr, &symname_dsc, sym, LIB$M_FIS_MIXEDCASE);

    if (!$VMS_STATUS_SUCCESS(status))
        status = do_find_symbol(ptr, &symname_dsc, sym, 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;

        *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	1	/*
d2e9e320	2	* Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved.
0e05f545	3	*
d2e9e320 RS	4	* Licensed under the OpenSSL license (the "License"). You may not use
	5	* this file except in compliance with the License. You can obtain a copy
	6	* in the file LICENSE in the source distribution or at
	7	* https://www.openssl.org/source/license.html
0e05f545 RL	8	*/
0e05f545 RL	9
73decf59	10	#include "dso_locl.h"
da12bfca	11
38186bfd	12	#ifdef OPENSSL_SYS_VMS
da12bfca	13
0f113f3e	14	# pragma message disable DOLLARID
73decf59	15	# include <errno.h>
0f113f3e MC	16	# include <rms.h>
0f113f3e MC	17	# include <lib$routines.h>
828d04af	18	# include <libfisdef.h>
0f113f3e MC	19	# include <stsdef.h>
	20	# include <descrip.h>
	21	# include <starlet.h>
3dc9589c	22	# include "../vms_rms.h"
537c9823 RL	23
537c9823 RL	24	/* Some compiler options may mask the declaration of "_malloc32". */
0f113f3e MC	25	# if __INITIAL_POINTER_SIZE && defined _ANSI_C_SOURCE
	26	# if __INITIAL_POINTER_SIZE == 64
	27	# pragma pointer_size save
	28	# pragma pointer_size 32
	29	void *_malloc32(__size_t);
	30	# pragma pointer_size restore
	31	# endif /* __INITIAL_POINTER_SIZE == 64 */
	32	# endif /* __INITIAL_POINTER_SIZE && defined
	33	* _ANSI_C_SOURCE */
	34
	35	# pragma message disable DOLLARID
0e05f545	36
51c8dc37	37	static int vms_load(DSO *dso);
0e05f545	38	static int vms_unload(DSO *dso);
0e05f545	39	static DSO_FUNC_TYPE vms_bind_func(DSO dso, const char symname);
03c4d82f	40	static char vms_name_converter(DSO dso, const char *filename);
cbecb3ac	41	static char vms_merger(DSO dso, const char *filespec1,
0f113f3e	42	const char *filespec2);
0e05f545 RL	43
0e05f545 RL	44	static DSO_METHOD dso_meth_vms = {
0f113f3e MC	45	"OpenSSL 'VMS' shared library method",
	46	vms_load,
	47	NULL, /* unload */
0f113f3e	48	vms_bind_func,
0f113f3e MC	49	NULL, /* ctrl */
	50	vms_name_converter,
	51	vms_merger,
	52	NULL, /* init */
cb6ea61c MC	53	NULL, /* finish */
	54	NULL, /* pathbyaddr */
	55	NULL /* globallookup */
0f113f3e MC	56	};
	57
	58	/*
	59	* On VMS, the only "handle" is the file name. LIB$FIND_IMAGE_SYMBOL depends
0e05f545 RL	60	* on the reference to the file name being the same for all calls regarding
	61	* one shared image, so we'll just store it in an instance of the following
	62	* structure and put a pointer to that instance in the meth_data stack.
	63	*/
0f113f3e MC	64	typedef struct dso_internal_st {
	65	/*
	66	* This should contain the name only, no directory, no extension, nothing
	67	* but a name.
	68	*/
	69	struct dsc$descriptor_s filename_dsc;
	70	char filename[NAMX_MAXRSS + 1];
	71	/*
	72	* This contains whatever is not in filename, if needed. Normally not
	73	* defined.
	74	*/
	75	struct dsc$descriptor_s imagename_dsc;
	76	char imagename[NAMX_MAXRSS + 1];
	77	} DSO_VMS_INTERNAL;
0e05f545	78
38186bfd	79	DSO_METHOD *DSO_METHOD_openssl(void)
0f113f3e	80	{
38186bfd	81	return &dso_meth_vms;
0f113f3e	82	}
0e05f545	83
51c8dc37	84	static int vms_load(DSO *dso)
0f113f3e MC	85	{
	86	void *ptr = NULL;
	87	/* See applicable comments in dso_dl.c */
	88	char *filename = DSO_convert_filename(dso, NULL);
537c9823 RL	89
537c9823 RL	90	/* Ensure 32-bit pointer for "p", and appropriate malloc() function. */
0f113f3e MC	91	# if __INITIAL_POINTER_SIZE == 64
	92	# define DSO_MALLOC _malloc32
	93	# pragma pointer_size save
	94	# pragma pointer_size 32
	95	# else /* __INITIAL_POINTER_SIZE == 64 */
	96	# define DSO_MALLOC OPENSSL_malloc
	97	# endif /* __INITIAL_POINTER_SIZE == 64 [else] */
	98
	99	DSO_VMS_INTERNAL *p = NULL;
	100
	101	# if __INITIAL_POINTER_SIZE == 64
	102	# pragma pointer_size restore
	103	# endif /* __INITIAL_POINTER_SIZE == 64 */
	104
	105	const char sp1, sp2; /* Search result */
dccd20d1	106	const char ext = NULL; / possible extension to add */
0f113f3e MC	107
	108	if (filename == NULL) {
	109	DSOerr(DSO_F_VMS_LOAD, DSO_R_NO_FILENAME);
	110	goto err;
	111	}
	112
50e735f9 MC	113	/*-
	114	* A file specification may look like this:
	115	*
	116	* node::dev:[dir-spec]name.type;ver
	117	*
	118	* or (for compatibility with TOPS-20):
	119	*
	120	* node::dev:<dir-spec>name.type;ver
	121	*
	122	* and the dir-spec uses '.' as separator. Also, a dir-spec
	123	* may consist of several parts, with mixed use of [] and <>:
	124	*
	125	* [dir1.]<dir2>
	126	*
	127	* We need to split the file specification into the name and
	128	* the rest (both before and after the name itself).
	129	*/
0f113f3e MC	130	/*
	131	* Start with trying to find the end of a dir-spec, and save the position
	132	* of the byte after in sp1
	133	*/
	134	sp1 = strrchr(filename, ']');
	135	sp2 = strrchr(filename, '>');
	136	if (sp1 == NULL)
	137	sp1 = sp2;
	138	if (sp2 != NULL && sp2 > sp1)
	139	sp1 = sp2;
	140	if (sp1 == NULL)
	141	sp1 = strrchr(filename, ':');
	142	if (sp1 == NULL)
	143	sp1 = filename;
	144	else
	145	sp1++; /* The byte after the found character */
	146	/* Now, let's see if there's a type, and save the position in sp2 */
	147	sp2 = strchr(sp1, '.');
be7b1097 RL	148	/*
	149	* If there is a period and the next character is a semi-colon,
	150	* we need to add an extension
	151	*/
	152	if (sp2 != NULL && sp2[1] == ';')
	153	ext = ".EXE";
0f113f3e MC	154	/*
	155	* If we found it, that's where we'll cut. Otherwise, look for a version
	156	* number and save the position in sp2
	157	*/
be7b1097	158	if (sp2 == NULL) {
0f113f3e	159	sp2 = strchr(sp1, ';');
be7b1097 RL	160	ext = ".EXE";
be7b1097 RL	161	}
0f113f3e MC	162	/*
	163	* If there was still nothing to find, set sp2 to point at the end of the
	164	* string
	165	*/
	166	if (sp2 == NULL)
	167	sp2 = sp1 + strlen(sp1);
	168
	169	/* Check that we won't get buffer overflows */
	170	if (sp2 - sp1 > FILENAME_MAX
	171	\|\| (sp1 - filename) + strlen(sp2) > FILENAME_MAX) {
	172	DSOerr(DSO_F_VMS_LOAD, DSO_R_FILENAME_TOO_BIG);
	173	goto err;
	174	}
	175
b4faea50	176	p = DSO_MALLOC(sizeof(*p));
0f113f3e MC	177	if (p == NULL) {
	178	DSOerr(DSO_F_VMS_LOAD, ERR_R_MALLOC_FAILURE);
	179	goto err;
	180	}
	181
	182	strncpy(p->filename, sp1, sp2 - sp1);
	183	p->filename[sp2 - sp1] = '\0';
	184
	185	strncpy(p->imagename, filename, sp1 - filename);
	186	p->imagename[sp1 - filename] = '\0';
be7b1097 RL	187	if (ext) {
	188	strcat(p->imagename, ext);
	189	if (*sp2 == '.')
	190	sp2++;
	191	}
0f113f3e MC	192	strcat(p->imagename, sp2);
	193
	194	p->filename_dsc.dsc$w_length = strlen(p->filename);
	195	p->filename_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
	196	p->filename_dsc.dsc$b_class = DSC$K_CLASS_S;
	197	p->filename_dsc.dsc$a_pointer = p->filename;
	198	p->imagename_dsc.dsc$w_length = strlen(p->imagename);
	199	p->imagename_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
	200	p->imagename_dsc.dsc$b_class = DSC$K_CLASS_S;
	201	p->imagename_dsc.dsc$a_pointer = p->imagename;
	202
	203	if (!sk_void_push(dso->meth_data, (char *)p)) {
	204	DSOerr(DSO_F_VMS_LOAD, DSO_R_STACK_ERROR);
	205	goto err;
	206	}
	207
	208	/* Success (for now, we lie. We actually do not know...) */
	209	dso->loaded_filename = filename;
208fb891	210	return 1;
0f113f3e MC	211	err:
0f113f3e MC	212	/* Cleanup! */
b548a1f1 RS	213	OPENSSL_free(p);
b548a1f1 RS	214	OPENSSL_free(filename);
26a7d938	215	return 0;
0f113f3e MC	216	}
	217
	218	/*
	219	* Note that this doesn't actually unload the shared image, as there is no
0e05f545 RL	220	* such thing in VMS. Next time it get loaded again, a new copy will
	221	* actually be loaded.
	222	*/
	223	static int vms_unload(DSO *dso)
0f113f3e MC	224	{
	225	DSO_VMS_INTERNAL *p;
	226	if (dso == NULL) {
	227	DSOerr(DSO_F_VMS_UNLOAD, ERR_R_PASSED_NULL_PARAMETER);
26a7d938	228	return 0;
0f113f3e MC	229	}
0f113f3e MC	230	if (sk_void_num(dso->meth_data) < 1)
208fb891	231	return 1;
0f113f3e MC	232	p = (DSO_VMS_INTERNAL *)sk_void_pop(dso->meth_data);
	233	if (p == NULL) {
	234	DSOerr(DSO_F_VMS_UNLOAD, DSO_R_NULL_HANDLE);
26a7d938	235	return 0;
0f113f3e MC	236	}
	237	/* Cleanup */
	238	OPENSSL_free(p);
208fb891	239	return 1;
0f113f3e MC	240	}
	241
	242	/*
	243	* We must do this in a separate function because of the way the exception
	244	* handler works (it makes this function return
	245	*/
0e05f545	246	static int do_find_symbol(DSO_VMS_INTERNAL *ptr,
0f113f3e MC	247	struct dsc$descriptor_s symname_dsc, void *sym,
	248	unsigned long flags)
	249	{
	250	/*
	251	* Make sure that signals are caught and returned instead of aborting the
	252	* program. The exception handler gets unestablished automatically on
	253	* return from this function.
	254	*/
	255	lib$establish(lib$sig_to_ret);
	256
	257	if (ptr->imagename_dsc.dsc$w_length)
	258	return lib$find_image_symbol(&ptr->filename_dsc,
	259	symname_dsc, sym,
	260	&ptr->imagename_dsc, flags);
	261	else
	262	return lib$find_image_symbol(&ptr->filename_dsc,
	263	symname_dsc, sym, 0, flags);
	264	}
0e05f545	265
278a33da RL	266	# ifndef LIB$M_FIS_MIXEDCASE
	267	# define LIB$M_FIS_MIXEDCASE (1 << 4);
	268	# endif
3aa477f6	269	void vms_bind_sym(DSO dso, const char symname, void **sym)
0f113f3e MC	270	{
0f113f3e MC	271	DSO_VMS_INTERNAL *ptr;
278a33da	272	int status = 0;
0f113f3e	273	struct dsc$descriptor_s symname_dsc;
0e05f545	274
537c9823	275	/* Arrange 32-bit pointer to (copied) string storage, if needed. */
0f113f3e MC	276	# if __INITIAL_POINTER_SIZE == 64
	277	# define SYMNAME symname_32p
	278	# pragma pointer_size save
	279	# pragma pointer_size 32
	280	char *symname_32p;
	281	# pragma pointer_size restore
	282	char symname_32[NAMX_MAXRSS + 1];
	283	# else /* __INITIAL_POINTER_SIZE == 64 */
	284	# define SYMNAME ((char *) symname)
	285	# endif /* __INITIAL_POINTER_SIZE == 64 [else] */
	286
	287	*sym = NULL;
	288
	289	if ((dso == NULL) \|\| (symname == NULL)) {
	290	DSOerr(DSO_F_VMS_BIND_SYM, ERR_R_PASSED_NULL_PARAMETER);
	291	return;
	292	}
	293	# if __INITIAL_POINTER_SIZE == 64
	294	/* Copy the symbol name to storage with a 32-bit pointer. */
	295	symname_32p = symname_32;
	296	strcpy(symname_32p, symname);
	297	# endif /* __INITIAL_POINTER_SIZE == 64 [else] */
	298
	299	symname_dsc.dsc$w_length = strlen(SYMNAME);
	300	symname_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
	301	symname_dsc.dsc$b_class = DSC$K_CLASS_S;
	302	symname_dsc.dsc$a_pointer = SYMNAME;
	303
	304	if (sk_void_num(dso->meth_data) < 1) {
	305	DSOerr(DSO_F_VMS_BIND_SYM, DSO_R_STACK_ERROR);
	306	return;
	307	}
	308	ptr = (DSO_VMS_INTERNAL *)sk_void_value(dso->meth_data,
	309	sk_void_num(dso->meth_data) - 1);
	310	if (ptr == NULL) {
	311	DSOerr(DSO_F_VMS_BIND_SYM, DSO_R_NULL_HANDLE);
	312	return;
	313	}
	314
278a33da	315	status = do_find_symbol(ptr, &symname_dsc, sym, LIB$M_FIS_MIXEDCASE);
0f113f3e	316
278a33da RL	317	if (!$VMS_STATUS_SUCCESS(status))
278a33da RL	318	status = do_find_symbol(ptr, &symname_dsc, sym, 0);
0f113f3e MC	319
	320	if (!$VMS_STATUS_SUCCESS(status)) {
	321	unsigned short length;
	322	char errstring[257];
	323	struct dsc$descriptor_s errstring_dsc;
	324
	325	errstring_dsc.dsc$w_length = sizeof(errstring);
	326	errstring_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
	327	errstring_dsc.dsc$b_class = DSC$K_CLASS_S;
	328	errstring_dsc.dsc$a_pointer = errstring;
	329
	330	*sym = NULL;
	331
	332	status = sys$getmsg(status, &length, &errstring_dsc, 1, 0);
	333
	334	if (!$VMS_STATUS_SUCCESS(status))
	335	lib$signal(status); /* This is really bad. Abort! */
	336	else {
	337	errstring[length] = '\0';
	338
	339	DSOerr(DSO_F_VMS_BIND_SYM, DSO_R_SYM_FAILURE);
	340	if (ptr->imagename_dsc.dsc$w_length)
	341	ERR_add_error_data(9,
	342	"Symbol ", symname,
	343	" in ", ptr->filename,
	344	" (", ptr->imagename, ")",
	345	": ", errstring);
	346	else
	347	ERR_add_error_data(6,
	348	"Symbol ", symname,
	349	" in ", ptr->filename, ": ", errstring);
	350	}
	351	return;
	352	}
	353	return;
	354	}
0e05f545	355
0e05f545	356	static DSO_FUNC_TYPE vms_bind_func(DSO dso, const char symname)
0f113f3e MC	357	{
	358	DSO_FUNC_TYPE sym = 0;
	359	vms_bind_sym(dso, symname, (void **)&sym);
	360	return sym;
	361	}
	362
	363	static char vms_merger(DSO dso, const char *filespec1,
	364	const char *filespec2)
	365	{
	366	int status;
	367	int filespec1len, filespec2len;
	368	struct FAB fab;
	369	struct NAMX_STRUCT nam;
	370	char esa[NAMX_MAXRSS + 1];
	371	char *merged;
cbecb3ac	372
537c9823	373	/* Arrange 32-bit pointer to (copied) string storage, if needed. */
0f113f3e MC	374	# if __INITIAL_POINTER_SIZE == 64
	375	# define FILESPEC1 filespec1_32p;
	376	# define FILESPEC2 filespec2_32p;
	377	# pragma pointer_size save
	378	# pragma pointer_size 32
	379	char *filespec1_32p;
	380	char *filespec2_32p;
	381	# pragma pointer_size restore
	382	char filespec1_32[NAMX_MAXRSS + 1];
	383	char filespec2_32[NAMX_MAXRSS + 1];
	384	# else /* __INITIAL_POINTER_SIZE == 64 */
	385	# define FILESPEC1 ((char *) filespec1)
	386	# define FILESPEC2 ((char *) filespec2)
	387	# endif /* __INITIAL_POINTER_SIZE == 64 [else] */
	388
	389	if (!filespec1)
	390	filespec1 = "";
	391	if (!filespec2)
	392	filespec2 = "";
	393	filespec1len = strlen(filespec1);
	394	filespec2len = strlen(filespec2);
	395
	396	# if __INITIAL_POINTER_SIZE == 64
	397	/* Copy the file names to storage with a 32-bit pointer. */
	398	filespec1_32p = filespec1_32;
	399	filespec2_32p = filespec2_32;
	400	strcpy(filespec1_32p, filespec1);
	401	strcpy(filespec2_32p, filespec2);
	402	# endif /* __INITIAL_POINTER_SIZE == 64 [else] */
	403
	404	fab = cc$rms_fab;
	405	nam = CC_RMS_NAMX;
	406
	407	FAB_OR_NAML(fab, nam).FAB_OR_NAML_FNA = FILESPEC1;
	408	FAB_OR_NAML(fab, nam).FAB_OR_NAML_FNS = filespec1len;
	409	FAB_OR_NAML(fab, nam).FAB_OR_NAML_DNA = FILESPEC2;
	410	FAB_OR_NAML(fab, nam).FAB_OR_NAML_DNS = filespec2len;
	411	NAMX_DNA_FNA_SET(fab)
	412
	413	nam.NAMX_ESA = esa;
	414	nam.NAMX_ESS = NAMX_MAXRSS;
	415	nam.NAMX_NOP = NAM$M_SYNCHK \| NAM$M_PWD;
	416	SET_NAMX_NO_SHORT_UPCASE(nam);
	417
	418	fab.FAB_NAMX = &nam;
	419
	420	status = sys$parse(&fab, 0, 0);
	421
	422	if (!$VMS_STATUS_SUCCESS(status)) {
	423	unsigned short length;
	424	char errstring[257];
	425	struct dsc$descriptor_s errstring_dsc;
	426
	427	errstring_dsc.dsc$w_length = sizeof(errstring);
	428	errstring_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
	429	errstring_dsc.dsc$b_class = DSC$K_CLASS_S;
	430	errstring_dsc.dsc$a_pointer = errstring;
	431
	432	status = sys$getmsg(status, &length, &errstring_dsc, 1, 0);
	433
	434	if (!$VMS_STATUS_SUCCESS(status))
	435	lib$signal(status); /* This is really bad. Abort! */
	436	else {
	437	errstring[length] = '\0';
438
439	DSOerr(DSO_F_VMS_MERGER, DSO_R_FAILURE);
440	ERR_add_error_data(7,
441	"filespec \"", filespec1, "\", ",
442	"defaults \"", filespec2, "\": ", errstring);
443	}
26a7d938	444	return NULL;
0f113f3e MC	445	}
	446
	447	merged = OPENSSL_malloc(nam.NAMX_ESL + 1);
90945fa3	448	if (merged == NULL)
0f113f3e MC	449	goto malloc_err;
	450	strncpy(merged, nam.NAMX_ESA, nam.NAMX_ESL);
	451	merged[nam.NAMX_ESL] = '\0';
26a7d938	452	return merged;
cbecb3ac	453	malloc_err:
0f113f3e MC	454	DSOerr(DSO_F_VMS_MERGER, ERR_R_MALLOC_FAILURE);
0f113f3e MC	455	}
cbecb3ac	456
856d456a	457	static char vms_name_converter(DSO dso, const char *filename)
0f113f3e MC	458	{
	459	int len = strlen(filename);
	460	char *not_translated = OPENSSL_malloc(len + 1);
90945fa3	461	if (not_translated != NULL)
918bb865	462	strcpy(not_translated, filename);
26a7d938	463	return not_translated;
0f113f3e MC	464	}
	465
	466	#endif /* OPENSSL_SYS_VMS */