/src/ghostpdl/psi/zusparam.c

Source
/* Copyright (C) 2001-2026 Artifex Software, Inc.
   All Rights Reserved.

   This software is provided AS-IS with no warranty, either express or
   implied.

   This software is distributed under license and may not be copied,
   modified or distributed except as expressly authorized under the terms
   of the license contained in the file LICENSE in this distribution.

   Refer to licensing information at http://www.artifex.com or contact
   Artifex Software, Inc.,  39 Mesa Street, Suite 108A, San Francisco,
   CA 94129, USA, for further information.
*/


/* User and system parameter operators */
#include "memory_.h"
#include "string_.h"
#include "ghost.h"
#include "oper.h"
#include "gscdefs.h"
#include "gsstruct.h"   /* for gxht.h */
#include "gsfont.h"   /* for user params */
#include "gxht.h"   /* for user params */
#include "gsutil.h"
#include "estack.h"
#include "ialloc.h"   /* for imemory for status */
#include "icontext.h"   /* for set_user_params prototype */
#include "idict.h"
#include "idparam.h"
#include "iparam.h"
#include "dstack.h"
#include "iname.h"
#include "itoken.h"
#include "iutil2.h"
#include "ivmem2.h"
#include "store.h"
#include "gsnamecl.h"
#include "igstate.h"
#include "gscms.h"
#include "gsicc_manage.h"
#include "gsparamx.h"
#include "gx.h"
#include "gxgstate.h"
#include "gslibctx.h"
#include "ichar.h"

/* The (global) font directory */
extern gs_font_dir *ifont_dir;  /* in zfont.c */

/* Define an individual user or system parameter. */
/* Eventually this will be made public. */
#define param_def_common\
    const char *pname

typedef struct param_def_s {
    param_def_common;
} param_def_t;

typedef struct size_t_param_def_s {
    param_def_common;
    size_t min_value, max_value;
    size_t (*current)(i_ctx_t *);
    int (*set)(i_ctx_t *, size_t);
} size_t_param_def_t;

typedef struct i64_param_def_s {
    param_def_common;
    int64_t min_value, max_value;
    int64_t (*current)(i_ctx_t *);
    int (*set)(i_ctx_t *, int64_t);
} i64_param_def_t;

typedef struct long_param_def_s {
    param_def_common;
    long min_value, max_value;
    long (*current)(i_ctx_t *);
    int (*set)(i_ctx_t *, long);
} long_param_def_t;

#if ARCH_SIZEOF_LONG > ARCH_SIZEOF_INT
#  define MAX_UINT_PARAM max_uint
#  define MIN_INT_PARAM min_int
#else
#  define MAX_UINT_PARAM max_long
#  define MIN_INT_PARAM min_long
#endif

typedef struct bool_param_def_s {
    param_def_common;
    bool (*current)(i_ctx_t *);
    int (*set)(i_ctx_t *, bool);
} bool_param_def_t;

typedef struct string_param_def_s {
    param_def_common;
    void (*current)(i_ctx_t *, gs_param_string *);
    int (*set)(i_ctx_t *, gs_param_string *);
} string_param_def_t;

/* Define a parameter set (user or system). */
typedef struct param_set_s {
    const size_t_param_def_t *size_t_defs;
    uint size_t_count;
    const i64_param_def_t *i64_defs;
    uint i64_count;
    const long_param_def_t *long_defs;
    uint long_count;
    const bool_param_def_t *bool_defs;
    uint bool_count;
    const string_param_def_t *string_defs;
    uint string_count;
} param_set;

/* Forward references */
static int setparams(i_ctx_t *, gs_param_list *, const param_set *);
static int currentparams(i_ctx_t *, const param_set *);
static int currentparam1(i_ctx_t *, const param_set *);

/* ------ Passwords ------ */

/* <string|int> .checkpassword <0|1|2> */
static int
zcheckpassword(i_ctx_t *i_ctx_p)
{
    os_ptr op = osp;
    ref params[2];
    array_param_list list;
    gs_param_list *const plist = (gs_param_list *)&list;
    int result = 0;
    int code = name_ref(imemory, (const byte *)"Password", 8, &params[0], 0);
    password pass;

    if (code < 0)
        return code;
    check_op(1);
    params[1] = *op;
    array_param_list_read(&list, params, 2, NULL, false, iimemory);
    if (dict_read_password(&pass, systemdict, "StartJobPassword") >= 0 &&
        param_check_password(plist, &pass) == 0
        )
        result = 1;

    if (i_ctx_p->system_params.SystemParamsPassword != NULL && strlen(i_ctx_p->system_params.SystemParamsPassword) < 64) {
        memcpy(pass.data, i_ctx_p->system_params.SystemParamsPassword, strlen(i_ctx_p->system_params.SystemParamsPassword));;
        pass.size = strlen(i_ctx_p->system_params.SystemParamsPassword);
    } else {
        pass.data[0] = 0x00;
        pass.size = 0;
    }
    if (param_check_password(plist, &pass) == 0)
        result = 2;

    iparam_list_release(&list);
    make_int(op, result);
    return 0;
}

/* ------ System parameters ------ */

/* Integer values */
static long
current_BuildTime(i_ctx_t *i_ctx_p)
{
    return gs_buildtime;
}

static long
current_CurDisplayList(i_ctx_t *i_ctx_p)
{
    return i_ctx_p->system_params.CurDisplayList;
}

static long
current_CurFormCache(i_ctx_t *i_ctx_p)
{
    return i_ctx_p->system_params.CurFormCache;
}

static long
current_CurOutlineCache(i_ctx_t *i_ctx_p)
{
    return i_ctx_p->system_params.CurOutlineCache;
}

static long
current_CurPatternCache(i_ctx_t *i_ctx_p)
{
    return i_ctx_p->system_params.CurPatternCache;
}

static long
current_CurScreenStorage(i_ctx_t *i_ctx_p)
{
    return i_ctx_p->system_params.CurScreenStorage;
}

static long
current_CurSourceList(i_ctx_t *i_ctx_p)
{
    return i_ctx_p->system_params.CurSourceList;
}

static long
current_CurStoredScreenCache(i_ctx_t *i_ctx_p)
{
    return i_ctx_p->system_params.CurStoredScreenCache;
}

static long
current_CurUPathCache(i_ctx_t *i_ctx_p)
{
    return i_ctx_p->system_params.CurScreenStorage;
}

static long
current_MaxDisplayAndSourceList(i_ctx_t *i_ctx_p)
{
    return i_ctx_p->system_params.MaxDisplayAndSourceList;
}

static int
set_MaxDisplayAndSourceList(i_ctx_t *i_ctx_p, long val)
{
    i_ctx_p->system_params.MaxDisplayAndSourceList = val;
    return 0;
}

static long
current_MaxDisplayList(i_ctx_t *i_ctx_p)
{
    return i_ctx_p->system_params.MaxDisplayList;
}

static int
set_MaxDisplayList(i_ctx_t *i_ctx_p, long val)
{
    i_ctx_p->system_params.MaxDisplayList = val;
    return 0;
}

static long
current_MaxFormCache(i_ctx_t *i_ctx_p)
{
    return i_ctx_p->system_params.MaxFormCache;
}

static int
set_MaxFormCache(i_ctx_t *i_ctx_p, long val)
{
    i_ctx_p->system_params.MaxFormCache = val;
    return 0;
}

static long
current_MaxImageBuffer(i_ctx_t *i_ctx_p)
{
    return i_ctx_p->system_params.MaxImageBuffer;
}

static int
set_MaxImageBuffer(i_ctx_t *i_ctx_p, long val)
{
    i_ctx_p->system_params.MaxImageBuffer = val;
    return 0;
}

static long
current_MaxOutlineCache(i_ctx_t *i_ctx_p)
{
    return i_ctx_p->system_params.MaxOutlineCache;
}

static int
set_MaxOutlineCache(i_ctx_t *i_ctx_p, long val)
{
    i_ctx_p->system_params.MaxOutlineCache = val;
    return 0;
}

static long
current_MaxPatternCache(i_ctx_t *i_ctx_p)
{
    return i_ctx_p->system_params.MaxPatternCache;
}

static int
set_MaxPatternCache(i_ctx_t *i_ctx_p, long val)
{
    i_ctx_p->system_params.MaxPatternCache = val;
    return 0;
}

static long
current_MaxUPathCache(i_ctx_t *i_ctx_p)
{
    return i_ctx_p->system_params.MaxUPathCache;
}

static int
set_MaxUPathCache(i_ctx_t *i_ctx_p, long val)
{
    i_ctx_p->system_params.MaxUPathCache = val;
    return 0;
}

static long
current_MaxScreenStorage(i_ctx_t *i_ctx_p)
{
    return i_ctx_p->system_params.MaxScreenStorage;
}

static int
set_MaxScreenStorage(i_ctx_t *i_ctx_p, long val)
{
    i_ctx_p->system_params.MaxScreenStorage = val;
    return 0;
}

static long
current_MaxSourceList(i_ctx_t *i_ctx_p)
{
    return i_ctx_p->system_params.MaxSourceList;
}

static int
set_MaxSourceList(i_ctx_t *i_ctx_p, long val)
{
    i_ctx_p->system_params.MaxSourceList = val;
    return 0;
}

static long
current_RamSize(i_ctx_t *i_ctx_p)
{
    return i_ctx_p->system_params.RamSize;
}

#if 0 /* compiled out (to quell warnings), pending complete removal */
static long
current_JobTimeout(i_ctx_t *i_ctx_p)
{
    return i_ctx_p->system_params.JobTimeout;
}

static int
set_JobTimeout(i_ctx_t *i_ctx_p, long val)
{
    i_ctx_p->system_params.JobTimeout = val;
    return 0;
}

static long
current_WaitTimeout(i_ctx_t *i_ctx_p)
{
    return i_ctx_p->system_params.WaitTimeout;
}

static int
set_WaitTimeout(i_ctx_t *i_ctx_p, long val)
{
    i_ctx_p->system_params.WaitTimeout = val;
    return 0;
}
#endif

/* we duplicate this definition here instead of including bfont.h and
   all its dependencies */

#define ifont_dir (gs_lib_ctx_get_interp_instance(imemory)->font_dir)

static long
current_MaxFontCache(i_ctx_t *i_ctx_p)
{
    return gs_currentcachesize(ifont_dir);
}
static int
set_MaxFontCache(i_ctx_t *i_ctx_p, long val)
{
    /* Changing the cache params clears the "pairs" cache, which
       causes a crash if the in use font/matrix pair disappears
       during a text operation. So don't allow that to happen.
     */
    if (op_show_find(i_ctx_p) != NULL)
        return_error(gs_error_invalidaccess);
    return gs_setcachesize(igs, ifont_dir,
                           (uint)(val < 0 ? 0 : val > max_uint ? max_uint :
                                   val));
}
static long
current_CurFontCache(i_ctx_t *i_ctx_p)
{
    uint cstat[7];

    gs_cachestatus(ifont_dir, cstat);
    return cstat[0];
}

/* Even though size_t is unsigned, PostScript limits this to signed range */
static size_t
current_MaxGlobalVM(i_ctx_t *i_ctx_p)
{
    gs_memory_gc_status_t stat;
    size_t val;

    gs_memory_gc_status(iimemory_global, &stat);
    /* RJW: This seems very supicious to me. I get that in CPSI
     * mode the max_vm figure needs to be kept to 32bit mode, but
     * surely clipping it should be correct, rather than truncating
     * it? i.e. min(stat.max_vm, 0x7fffffff) */
    if (gs_currentcpsimode(imemory))
        return stat.max_vm & 0x7fffffff;
    /* else clamp at the maximum positive value for the size_t size signed integer */
    val = min(stat.max_vm, MAX_VM_THRESHOLD);
    return val;
}

/* Even though size_t is unsigned, PostScript limits this to signed range */
static int
set_MaxGlobalVM(i_ctx_t *i_ctx_p, size_t val)
{
    gs_memory_gc_status_t stat;

    gs_memory_gc_status(iimemory_global, &stat);
    stat.max_vm = val;
    gs_memory_set_gc_status(iimemory_global, &stat);
    return 0;
}
static long
current_Revision(i_ctx_t *i_ctx_p)
{
    return gs_revision;
}

static long
current_PageCount(i_ctx_t *i_ctx_p)
{
    gx_device *dev = gs_currentdevice(igs);

    if ((*dev_proc(dev, get_page_device))(dev) != 0)
        if (dev->ShowpageCount > i_ctx_p->nv_page_count)
          i_ctx_p->nv_page_count = dev->ShowpageCount;
    return 1000 + i_ctx_p->nv_page_count; /* Add 1000 to imitate NV memory */
}

static const size_t_param_def_t system_size_t_params[] =
{
    /* Extensions */
    {"MaxGlobalVM", MIN_VM_THRESHOLD, MAX_VM_THRESHOLD, current_MaxGlobalVM, set_MaxGlobalVM}
};

static const long_param_def_t system_long_params[] =
{
    {"BuildTime", min_long, max_long, current_BuildTime, NULL},
    {"CurDisplayList", 0, MAX_UINT_PARAM, current_CurDisplayList, NULL},
    {"CurFormCache", 0, MAX_UINT_PARAM, current_CurFormCache, NULL},
    {"CurOutlineCache", 0, MAX_UINT_PARAM, current_CurOutlineCache, NULL},
    {"CurPatternCache", 0, MAX_UINT_PARAM, current_CurPatternCache, NULL},
    {"CurScreenStorage", 0, MAX_UINT_PARAM, current_CurScreenStorage, NULL},
    {"CurSourceList", 0, MAX_UINT_PARAM, current_CurSourceList, NULL},
    {"CurStoredScreenCache", 0, MAX_UINT_PARAM, current_CurStoredScreenCache, NULL},
    {"CurUPathCache", 0, MAX_UINT_PARAM, current_CurUPathCache, NULL},
    {"MaxDisplayAndSourceList", 0, MAX_UINT_PARAM, current_MaxDisplayAndSourceList, set_MaxDisplayAndSourceList},
    {"MaxDisplayList", 0, MAX_UINT_PARAM, current_MaxDisplayList, set_MaxDisplayList},
    {"MaxImageBuffer", 0, MAX_UINT_PARAM, current_MaxImageBuffer, set_MaxImageBuffer},
    {"MaxFormCache", 0, MAX_UINT_PARAM, current_MaxFormCache, set_MaxFormCache},
    {"MaxOutlineCache", 0, MAX_UINT_PARAM, current_MaxOutlineCache, set_MaxOutlineCache},
    {"MaxPatternCache", 0, MAX_UINT_PARAM, current_MaxPatternCache, set_MaxPatternCache},
    {"MaxUPathCache", 0, MAX_UINT_PARAM, current_MaxUPathCache, set_MaxUPathCache},
    {"MaxScreenStorage", 0, MAX_UINT_PARAM, current_MaxScreenStorage, set_MaxScreenStorage},
    {"MaxSourceList", 0, MAX_UINT_PARAM, current_MaxSourceList, set_MaxSourceList},
    {"RamSize", 0, MAX_UINT_PARAM, current_RamSize, NULL},
    {"MaxFontCache", 0, MAX_UINT_PARAM, current_MaxFontCache, set_MaxFontCache},
    {"CurFontCache", 0, MAX_UINT_PARAM, current_CurFontCache, NULL},
    {"JobTimeout", 0, MAX_UINT_PARAM, current_MaxFontCache, set_MaxFontCache},
    {"WaitTimeout", 0, MAX_UINT_PARAM, current_MaxFontCache, set_MaxFontCache},
    {"Revision", min_long, max_long, current_Revision, NULL},
    {"PageCount", min_long, max_long, current_PageCount, NULL}
};

/* Boolean values */
static bool
current_ByteOrder(i_ctx_t *i_ctx_p)
{
    return !ARCH_IS_BIG_ENDIAN;
}
static const bool_param_def_t system_bool_params[] =
{
    {"ByteOrder", current_ByteOrder, NULL}
};

/* String values */
static void
current_RealFormat(i_ctx_t *i_ctx_p, gs_param_string * pval)
{
#if ARCH_FLOATS_ARE_IEEE
    static const char *const rfs = "IEEE";
#else
    static const char *const rfs = "not IEEE";
#endif

    pval->data = (const byte *)rfs;
    pval->size = strlen(rfs);
    pval->persistent = true;
}

static void
current_LicenseID(i_ctx_t *i_ctx_p, gs_param_string * pval)
{
    static const char *const rfs = "LN-001";

    pval->data = (const byte *)rfs;
    pval->size = strlen(rfs);
    pval->persistent = true;
}

extern const char *const gs_product;

static void
current_PrinterName(i_ctx_t *i_ctx_p, gs_param_string * pval)
{
    pval->data = (const byte *)gs_product;
    pval->size = strlen(gs_product);
    pval->persistent = true;
}

static void
current_InputDevice(i_ctx_t *i_ctx_p, gs_param_string * pval)
{
    pval->data = (const byte *)NULL;
    pval->size = 0;
    pval->persistent = true;
}

static void
current_OutputDevice(i_ctx_t *i_ctx_p, gs_param_string * pval)
{
    pval->data = (const byte *)NULL;
    pval->size = 0;
    pval->persistent = true;
}

static void
current_GenericResourceDir(i_ctx_t *i_ctx_p, gs_param_string * pval)
{
    pval->data = (const byte *)i_ctx_p->system_params.GenericResourceDir;
    if (i_ctx_p->system_params.GenericResourceDir != NULL)
        pval->size = strlen(i_ctx_p->system_params.GenericResourceDir);
    else
        pval->size = 0;
    pval->persistent = false;
}

static int
set_GenericResourceDir(i_ctx_t *i_ctx_p, gs_param_string *pval)
{
    if (gs_is_path_control_active(imemory))
        return 0;

    if (i_ctx_p->system_params.GenericResourceDir != NULL){
        gs_free_object(imemory->non_gc_memory, i_ctx_p->system_params.GenericResourceDir, "set_GenericResourceDir");
    }
    i_ctx_p->system_params.GenericResourceDir = (char *)gs_alloc_bytes(imemory->non_gc_memory, pval->size + 1, "set_GenericResourceDir");
    if (i_ctx_p->system_params.GenericResourceDir == NULL)
        return_error(gs_error_VMerror);
    memcpy(i_ctx_p->system_params.GenericResourceDir, pval->data, pval->size);
    i_ctx_p->system_params.GenericResourceDir[pval->size] = 0x00;
    return 0;
};

static void
current_FontResourceDir(i_ctx_t *i_ctx_p, gs_param_string * pval)
{
    pval->data = (const byte *)i_ctx_p->system_params.FontResourceDir;
    if (i_ctx_p->system_params.FontResourceDir != NULL)
        pval->size = strlen(i_ctx_p->system_params.FontResourceDir);
    else
        pval->size = 0;
    pval->persistent = false;
}

static int
set_FontResourceDir(i_ctx_t *i_ctx_p, gs_param_string *pval)
{
    if (gs_is_path_control_active(imemory))
        return 0;

    if (i_ctx_p->system_params.FontResourceDir != NULL){
        gs_free_object(imemory->non_gc_memory, i_ctx_p->system_params.FontResourceDir, "set_FontResourceDir");
    }
    i_ctx_p->system_params.FontResourceDir = (char *)gs_alloc_bytes(imemory->non_gc_memory, pval->size + 1, "set_FontResourceDir");
    if (i_ctx_p->system_params.FontResourceDir == NULL)
        return_error(gs_error_VMerror);
    memcpy(i_ctx_p->system_params.FontResourceDir, pval->data, pval->size);
    i_ctx_p->system_params.FontResourceDir[pval->size] = 0x00;
    return 0;
};

static void
current_GenericResourcePathSep(i_ctx_t *i_ctx_p, gs_param_string * pval)
{
    pval->data = (const byte *)i_ctx_p->system_params.GenericResourcePathSep;
    if (i_ctx_p->system_params.GenericResourcePathSep != NULL)
        pval->size = strlen(i_ctx_p->system_params.GenericResourcePathSep);
    else
        pval->size = 0;
    pval->persistent = false;
}

static int
set_GenericResourcePathSep(i_ctx_t *i_ctx_p, gs_param_string *pval)
{
    if (gs_is_path_control_active(imemory))
        return 0;

    if (i_ctx_p->system_params.GenericResourcePathSep != NULL){
        gs_free_object(imemory->non_gc_memory, i_ctx_p->system_params.GenericResourcePathSep, "set_GenericResourcePathSep");
    }
    i_ctx_p->system_params.GenericResourcePathSep = (char *)gs_alloc_bytes(imemory->non_gc_memory, pval->size + 1, "set_GenericResourcePathSep");
    if (i_ctx_p->system_params.GenericResourcePathSep == NULL)
        return_error(gs_error_VMerror);
    memcpy(i_ctx_p->system_params.GenericResourcePathSep, pval->data, pval->size);
    i_ctx_p->system_params.GenericResourcePathSep[pval->size] = 0x00;
    return 0;
};

static void
current_PercentDiskFontResourceDir(i_ctx_t *i_ctx_p, gs_param_string * pval)
{
    pval->data = (const byte *)i_ctx_p->system_params.PercentDiskFontResourceDir;
    if (i_ctx_p->system_params.PercentDiskFontResourceDir != NULL)
        pval->size = strlen(i_ctx_p->system_params.PercentDiskFontResourceDir);
    else
        pval->size = 0;
    pval->persistent = false;
}

static int
set_PercentDiskFontResourceDir(i_ctx_t *i_ctx_p, gs_param_string *pval)
{
    if (gs_is_path_control_active(imemory))
        return 0;

    if (i_ctx_p->system_params.PercentDiskFontResourceDir != NULL){
        gs_free_object(imemory->non_gc_memory, i_ctx_p->system_params.PercentDiskFontResourceDir, "set_PercentDiskFontResourceDir");
    }
    i_ctx_p->system_params.PercentDiskFontResourceDir = (char *)gs_alloc_bytes(imemory->non_gc_memory, pval->size + 1, "set_PercentDiskFontResourceDir");
    if (i_ctx_p->system_params.PercentDiskFontResourceDir == NULL)
        return_error(gs_error_VMerror);
    memcpy(i_ctx_p->system_params.PercentDiskFontResourceDir, pval->data, pval->size);
    i_ctx_p->system_params.PercentDiskFontResourceDir[pval->size] = 0x00;
    return 0;
};

static void
current_PercentDiskGenericResourceDir(i_ctx_t *i_ctx_p, gs_param_string * pval)
{
    pval->data = (const byte *)i_ctx_p->system_params.PercentDiskGenericResourceDir;
    if (i_ctx_p->system_params.PercentDiskGenericResourceDir != NULL)
        pval->size = strlen(i_ctx_p->system_params.PercentDiskGenericResourceDir);
    else
        pval->size = 0;
    pval->persistent = false;
}

static int
set_PercentDiskGenericResourceDir(i_ctx_t *i_ctx_p, gs_param_string *pval)
{
    if (gs_is_path_control_active(imemory))
        return 0;

    if (i_ctx_p->system_params.PercentDiskGenericResourceDir != NULL){
        gs_free_object(imemory->non_gc_memory, i_ctx_p->system_params.PercentDiskGenericResourceDir, "set_PercentDiskGenericResourceDir");
    }
    i_ctx_p->system_params.PercentDiskGenericResourceDir = (char *)gs_alloc_bytes(imemory->non_gc_memory, pval->size + 1, "set_PercentDiskGenericResourceDir");
    if (i_ctx_p->system_params.PercentDiskGenericResourceDir == NULL)
        return_error(gs_error_VMerror);
    memcpy(i_ctx_p->system_params.PercentDiskGenericResourceDir, pval->data, pval->size);
    i_ctx_p->system_params.PercentDiskGenericResourceDir[pval->size] = 0x00;
    return 0;
};

static int
set_StartJobPassword(i_ctx_t *i_ctx_p, gs_param_string *pval)
{
    if (i_ctx_p->system_params.StartJobPassword != NULL){
        gs_free_object(imemory->non_gc_memory, i_ctx_p->system_params.StartJobPassword, "set_StartJobPassword");
    }
    i_ctx_p->system_params.StartJobPassword = (char *)gs_alloc_bytes(imemory->non_gc_memory, pval->size + 1, "set_StartJobPassword");
    if (i_ctx_p->system_params.StartJobPassword == NULL)
        return_error(gs_error_VMerror);
    memcpy(i_ctx_p->system_params.StartJobPassword, pval->data, pval->size);
    i_ctx_p->system_params.StartJobPassword[pval->size] = 0x00;
    return 0;
};

static int
set_SystemParamsPassword(i_ctx_t *i_ctx_p, gs_param_string *pval)
{
    if (i_ctx_p->system_params.SystemParamsPassword != NULL){
        gs_free_object(imemory->non_gc_memory, i_ctx_p->system_params.PercentDiskGenericResourceDir, "set_SystemParamsPassword");
    }
    i_ctx_p->system_params.SystemParamsPassword = (char *)gs_alloc_bytes(imemory->non_gc_memory, pval->size + 1, "set_SystemParamsPassword");
    if (i_ctx_p->system_params.SystemParamsPassword == NULL)
        return_error(gs_error_VMerror);
    memcpy(i_ctx_p->system_params.SystemParamsPassword, pval->data, pval->size);
    i_ctx_p->system_params.SystemParamsPassword[pval->size] = 0x00;
    return 0;
};

static const string_param_def_t system_string_params[] =
{
    {"RealFormat", current_RealFormat, NULL},
    {"LicenseID", current_LicenseID, NULL},
    {"PrinterName", current_PrinterName, NULL},
    {"CurInputDevice", current_InputDevice, NULL},
    {"CurOutputDevice", current_OutputDevice, NULL},
    {"GenericResourceDir", current_GenericResourceDir, set_GenericResourceDir},
    {"FontResourceDir", current_FontResourceDir, set_FontResourceDir},
    {"GenericResourcePathSep", current_GenericResourcePathSep, set_GenericResourcePathSep},
    {"%diskFontResourceDir", current_PercentDiskFontResourceDir, set_PercentDiskFontResourceDir},
    {"%diskGenericResourceDir", current_PercentDiskGenericResourceDir, set_PercentDiskGenericResourceDir},
    {"StartJobPassword", NULL, set_StartJobPassword},
    {"SystemParamsPassword", NULL, set_SystemParamsPassword},
};

/* The system parameter set */
static const param_set system_param_set =
{
    system_size_t_params, countof(system_size_t_params),
    NULL, 0,  /* No i64 params for systemparams (yet) */
    system_long_params, countof(system_long_params),
    system_bool_params, countof(system_bool_params),
    system_string_params, countof(system_string_params)
};

/* <dict> .setsystemparams - */
static int
zsetsystemparams(i_ctx_t *i_ctx_p)
{
    os_ptr op = osp;
    int code;
    dict_param_list list;
    gs_param_list *const plist = (gs_param_list *)&list;
    password pass;

    check_op(1);
    check_type(*op, t_dictionary);
    code = dict_param_list_read(&list, op, NULL, false, iimemory);
    if (code < 0)
        return code;
    if (i_ctx_p->system_params.SystemParamsPassword != NULL && strlen(i_ctx_p->system_params.SystemParamsPassword) < 64) {
        memcpy(pass.data, i_ctx_p->system_params.SystemParamsPassword, strlen(i_ctx_p->system_params.SystemParamsPassword));;
        pass.size = strlen(i_ctx_p->system_params.SystemParamsPassword);
    } else {
        pass.data[0] = 0x00;
        pass.size = 0;
    }
    code = param_check_password(plist, &pass);
    if (code != 0) {
        if (code > 0)
            code = gs_note_error(gs_error_invalidaccess);
        goto out;
    }

    code = setparams(i_ctx_p, plist, &system_param_set);
  out:
    iparam_list_release(&list);
    if (code < 0)
        return code;
    pop(1);
    return 0;
}

/* - .currentsystemparams <name1> <value1> ... */
static int
zcurrentsystemparams(i_ctx_t *i_ctx_p)
{
    return currentparams(i_ctx_p, &system_param_set);
}

/* <name> .getsystemparam <value> */
static int
zgetsystemparam(i_ctx_t *i_ctx_p)
{
    return currentparam1(i_ctx_p, &system_param_set);
}

/* ------ User parameters ------ */

/* Integer values */
static long
current_user_JobTimeout(i_ctx_t *i_ctx_p)
{
    return 0;
}
static int
set_user_JobTimeout(i_ctx_t *i_ctx_p, long val)
{
    return 0;
}
static long
current_MaxFontItem(i_ctx_t *i_ctx_p)
{
    return gs_currentcacheupper(ifont_dir);
}
static int
set_MaxFontItem(i_ctx_t *i_ctx_p, long val)
{
    return gs_setcacheupper(ifont_dir, val);
}
static long
current_MinFontCompress(i_ctx_t *i_ctx_p)
{
    return gs_currentcachelower(ifont_dir);
}
static int
set_MinFontCompress(i_ctx_t *i_ctx_p, long val)
{
    return gs_setcachelower(ifont_dir, val);
}
static long
current_MaxOpStack(i_ctx_t *i_ctx_p)
{
    return ref_stack_max_count(&o_stack);
}
static int
set_MaxOpStack(i_ctx_t *i_ctx_p, long val)
{
    return ref_stack_set_max_count(&o_stack, val);
}
static long
current_MaxDictStack(i_ctx_t *i_ctx_p)
{
    return ref_stack_max_count(&d_stack);
}
static int
set_MaxDictStack(i_ctx_t *i_ctx_p, long val)
{
    return ref_stack_set_max_count(&d_stack, val);
}
static long
current_MaxExecStack(i_ctx_t *i_ctx_p)
{
    return ref_stack_max_count(&e_stack);
}
static int
set_MaxExecStack(i_ctx_t *i_ctx_p, long val)
{
    return ref_stack_set_max_count(&e_stack, val);
}
static size_t
current_MaxLocalVM(i_ctx_t *i_ctx_p)
{
    gs_memory_gc_status_t stat;
    size_t val;

    gs_memory_gc_status(iimemory_local, &stat);
    /* RJW: This seems very supicious to me. I get that in CPSI
     * mode the max_vm figure needs to be kept to 32bit mode, but
     * surely clipping it should be correct, rather than truncating
     * it? i.e. min(stat.max_vm, 0x7fffffff) */
    if (gs_currentcpsimode(imemory))
        return stat.max_vm & 0x7fffffff;
    /* else clamp at the maximun positive value for the size_t size signed integer */
    val = min(stat.max_vm, MAX_VM_THRESHOLD);
    return val;
}
/* Even though size_t is unsigned, PostScript limits this to signed range */
static int
set_MaxLocalVM(i_ctx_t *i_ctx_p, size_t val)
{
    gs_memory_gc_status_t stat;

    gs_memory_gc_status(iimemory_local, &stat);
    stat.max_vm = val;
    gs_memory_set_gc_status(iimemory_local, &stat);
    return 0;
}
static long
current_VMReclaim(i_ctx_t *i_ctx_p)
{
    gs_memory_gc_status_t gstat, lstat;

    gs_memory_gc_status(iimemory_global, &gstat);
    gs_memory_gc_status(iimemory_local, &lstat);
    return (!gstat.enabled ? -2 : !lstat.enabled ? -1 : 0);
}
static int64_t
current_VMThreshold(i_ctx_t *i_ctx_p)
{
    gs_memory_gc_status_t stat;

    gs_memory_gc_status(iimemory_local, &stat);
    return stat.vm_threshold;
}
static long
current_user_WaitTimeout(i_ctx_t *i_ctx_p)
{
    return 0;
}
static int
set_user_WaitTimeout(i_ctx_t *i_ctx_p, long val)
{
    return 0;
}
static long
current_MinScreenLevels(i_ctx_t *i_ctx_p)
{
    return gs_currentminscreenlevels(imemory);
}
static int
set_MinScreenLevels(i_ctx_t *i_ctx_p, long val)
{
    gs_setminscreenlevels(imemory, (uint) val);
    return 0;
}
static long
current_AlignToPixels(i_ctx_t *i_ctx_p)
{
    return gs_currentaligntopixels(ifont_dir);
}
static int
set_AlignToPixels(i_ctx_t *i_ctx_p, long val)
{
    gs_setaligntopixels(ifont_dir, (uint)val);
    return 0;
}
static long
current_GridFitTT(i_ctx_t *i_ctx_p)
{
    return gs_currentgridfittt(ifont_dir);
}
static int
set_GridFitTT(i_ctx_t *i_ctx_p, long val)
{
    gs_setgridfittt(ifont_dir, (uint)val);
    return 0;
}

#undef ifont_dir

static long
current_MaxFormItem(i_ctx_t *i_ctx_p)
{
    return(i_ctx_p->user_params.MaxFormItem);
}
static int
set_MaxFormItem(i_ctx_t *i_ctx_p, long val)
{
    i_ctx_p->user_params.MaxFormItem = val;
    return 0;
}

static long
current_MaxPatternItem(i_ctx_t *i_ctx_p)
{
    return(i_ctx_p->user_params.MaxPatternItem);
}
static int
set_MaxPatternItem(i_ctx_t *i_ctx_p, long val)
{
    i_ctx_p->user_params.MaxPatternItem = val;
    return 0;
}

static long
current_MaxScreenItem(i_ctx_t *i_ctx_p)
{
    return(i_ctx_p->user_params.MaxScreenItem);
}
static int
set_MaxScreenItem(i_ctx_t *i_ctx_p, long val)
{
    i_ctx_p->user_params.MaxScreenItem = val;
    return 0;
}

static long
current_MaxUPathItem(i_ctx_t *i_ctx_p)
{
    return(i_ctx_p->user_params.MaxUPathItem);
}
static int
set_MaxUPathItem(i_ctx_t *i_ctx_p, long val)
{
    i_ctx_p->user_params.MaxUPathItem = val;
    return 0;
}

static long
current_MaxSuperScreen(i_ctx_t *i_ctx_p)
{
    return(i_ctx_p->user_params.MaxFormItem);
}
static int
set_MaxSuperScreen(i_ctx_t *i_ctx_p, long val)
{
    i_ctx_p->user_params.MaxFormItem = val;
    return 0;
}

static long
current_HalftoneMode(i_ctx_t *i_ctx_p)
{
    return(i_ctx_p->user_params.HalftoneMode);
}
static int
set_HalftoneMode(i_ctx_t *i_ctx_p, long val)
{
    i_ctx_p->user_params.HalftoneMode = val;
    return 0;
}

static void
current_devicen_icc(i_ctx_t *i_ctx_p, gs_param_string * pval)
{
    gs_currentdevicenicc(igs, pval);
}

static int
set_devicen_profile_icc(i_ctx_t *i_ctx_p, gs_param_string * pval)
{
    return gs_setdevicenprofileicc(igs, pval);
}

static void
current_default_gray_icc(i_ctx_t *i_ctx_p, gs_param_string * pval)
{
    gs_currentdefaultgrayicc(igs, pval);
}

static int
set_default_gray_icc(i_ctx_t *i_ctx_p, gs_param_string * pval)
{
    return gs_setdefaultgrayicc(igs, pval);
}

static void
current_icc_directory(i_ctx_t *i_ctx_p, gs_param_string * pval)
{
    gs_currenticcdirectory(igs, pval);
}

static int
set_icc_directory(i_ctx_t *i_ctx_p, gs_param_string * pval)
{
    return gs_seticcdirectory(igs, pval);
}

static void
current_srcgtag_icc(i_ctx_t *i_ctx_p, gs_param_string * pval)
{
    gs_currentsrcgtagicc(igs, pval);
}

static int
set_srcgtag_icc(i_ctx_t *i_ctx_p, gs_param_string * pval)
{
    return gs_setsrcgtagicc(igs, pval);
}

static void
current_default_rgb_icc(i_ctx_t *i_ctx_p, gs_param_string * pval)
{
    gs_currentdefaultrgbicc(igs, pval);
}

static int
set_default_rgb_icc(i_ctx_t *i_ctx_p, gs_param_string * pval)
{
    return gs_setdefaultrgbicc(igs, pval);
}

static void
current_named_icc(i_ctx_t *i_ctx_p, gs_param_string * pval)
{
    gs_currentnamedicc(igs, pval);
}

static int
set_named_profile_icc(i_ctx_t *i_ctx_p, gs_param_string * pval)
{
    return gs_setnamedprofileicc(igs, pval);
}

static void
current_default_cmyk_icc(i_ctx_t *i_ctx_p, gs_param_string * pval)
{
    gs_currentdefaultcmykicc(igs, pval);
}

static int
set_default_cmyk_icc(i_ctx_t *i_ctx_p, gs_param_string * pval)
{
    return gs_setdefaultcmykicc(igs, pval);
}

static void
current_lab_icc(i_ctx_t *i_ctx_p, gs_param_string * pval)
{
    gs_currentlabicc(igs, pval);
}

static int
set_lab_icc(i_ctx_t *i_ctx_p, gs_param_string * pval)
{
    return gs_setlabicc(igs, pval);
}

static void
current_JobName(i_ctx_t *i_ctx_p, gs_param_string * pval)
{
    if (i_ctx_p->user_params.JobName == NULL) {
        pval->data = NULL;
        pval->size = 0;
        pval->persistent = false;
    } else {
        pval->data = (const byte *)i_ctx_p->user_params.JobName;
        pval->size = strlen(i_ctx_p->user_params.JobName);
        pval->persistent = false;
    }
}

static int
set_JobName(i_ctx_t *i_ctx_p, gs_param_string * pval)
{
    if (i_ctx_p->user_params.JobName != NULL) {
        gs_free_object(imemory->non_gc_memory, i_ctx_p->user_params.JobName, "set_JobName");
    }
    i_ctx_p->user_params.JobName = (char *)gs_alloc_bytes(imemory->non_gc_memory, pval->size + 1, "set_JobName");
    if (i_ctx_p->user_params.JobName == NULL)
        return_error(gs_error_VMerror);
    if (pval->size)
        memcpy(i_ctx_p->user_params.JobName, pval->data, pval->size);
    i_ctx_p->user_params.JobName[pval->size] = 0x00;
    return 0;
}

static const size_t_param_def_t user_size_t_params[] =
{
    {"MaxLocalVM", MIN_VM_THRESHOLD, MAX_VM_THRESHOLD, current_MaxLocalVM, set_MaxLocalVM}
};

static const i64_param_def_t user_i64_params[] =
{
    {"VMThreshold", -1, MAX_VM_THRESHOLD, current_VMThreshold, set_vm_threshold},
};

static const long_param_def_t user_long_params[] =
{
    {"JobTimeout", 0, MAX_UINT_PARAM,
     current_user_JobTimeout, set_user_JobTimeout},
    {"MaxFontItem", MIN_INT_PARAM, MAX_UINT_PARAM,
     current_MaxFontItem, set_MaxFontItem},
    {"MinFontCompress", MIN_INT_PARAM, MAX_UINT_PARAM,
     current_MinFontCompress, set_MinFontCompress},
    {"MaxOpStack", -1, max_long,
     current_MaxOpStack, set_MaxOpStack},
    {"MaxDictStack", -1, max_long,
     current_MaxDictStack, set_MaxDictStack},
    {"MaxExecStack", -1, max_long,
     current_MaxExecStack, set_MaxExecStack},
    {"VMReclaim", -2, 0,
     current_VMReclaim, set_vm_reclaim},
    {"WaitTimeout", 0, MAX_UINT_PARAM,
     current_user_WaitTimeout, set_user_WaitTimeout},
    /* Extensions */
    {"MinScreenLevels", 0, MAX_UINT_PARAM,
     current_MinScreenLevels, set_MinScreenLevels},
    {"AlignToPixels", 0, 1,
     current_AlignToPixels, set_AlignToPixels},
    {"GridFitTT", 0, 3,
     current_GridFitTT, set_GridFitTT},
    {"MaxFormItem", 0, MAX_UINT_PARAM,
    current_MaxFormItem, set_MaxFormItem},
    {"MaxPatternItem", 0, MAX_UINT_PARAM,
    current_MaxPatternItem, set_MaxPatternItem},
    {"MaxScreenItem", 0, MAX_UINT_PARAM,
    current_MaxScreenItem, set_MaxScreenItem},
    {"MaxUPathItem", 0, MAX_UINT_PARAM,
    current_MaxUPathItem, set_MaxUPathItem},
    {"HalftoneMode", 0, 2,
    current_HalftoneMode, set_HalftoneMode},
    {"MaxSuperScreen", 0, MAX_UINT_PARAM,
    current_MaxSuperScreen, set_MaxSuperScreen},
};

/* Note that string objects that are maintained as user params must be
   either allocated in non-gc memory or be a constant in the executable.
   The problem stems from the way userparams are retained during garbage
   collection in a param_list (collected by currentuserparams).  For
   some reason this param_list does not get the pointers to strings relocated
   during the GC. Note that the param_dict itself is correctly updated by reloc,
   it is just the pointers to the strings in the param_list that are not traced
   and updated. An example of this includes the ICCProfilesDir, which sets a
   string in the icc_manager. When a reclaim occurs, the string is relocated
   (when in non-gc memory and when it is noted to the gc with the proper object
   descriptor).  Then if a set_icc_directory occurs, the user params pointer has
   NOT been updated and validation problems will occur. */
static const string_param_def_t user_string_params[] =
{
    {"DefaultGrayProfile", current_default_gray_icc, set_default_gray_icc},
    {"DefaultRGBProfile", current_default_rgb_icc, set_default_rgb_icc},
    {"DefaultCMYKProfile", current_default_cmyk_icc, set_default_cmyk_icc},
    {"NamedProfile", current_named_icc, set_named_profile_icc},
    {"ICCProfilesDir", current_icc_directory, set_icc_directory},
    {"LabProfile", current_lab_icc, set_lab_icc},
    {"DeviceNProfile", current_devicen_icc, set_devicen_profile_icc},
    {"SourceObjectICC", current_srcgtag_icc, set_srcgtag_icc},
    {"JobName", current_JobName, set_JobName},
};

/* Boolean values */
static bool
current_AccurateScreens(i_ctx_t *i_ctx_p)
{
    return gs_currentaccuratescreens(imemory);
}
static int
set_AccurateScreens(i_ctx_t *i_ctx_p, bool val)
{
    gs_setaccuratescreens(imemory, val);
    return 0;
}
/* Boolean values */
static bool
current_OverrideICC(i_ctx_t *i_ctx_p)
{
    return gs_currentoverrideicc(igs);
}
static int
set_OverrideICC(i_ctx_t *i_ctx_p, bool val)
{
    gs_setoverrideicc(igs, val);
    return 0;
}
static bool
current_LockFilePermissions(i_ctx_t *i_ctx_p)
{
    return i_ctx_p->LockFilePermissions;
}
static int
set_LockFilePermissions(i_ctx_t *i_ctx_p, bool val)
{
    /* allow locking even if already locked */
    if (i_ctx_p->LockFilePermissions && !val)
        return_error(gs_error_invalidaccess);
    i_ctx_p->LockFilePermissions = val;
    return 0;
}
static bool
current_RenderTTNotdef(i_ctx_t *i_ctx_p)
{
    return i_ctx_p->RenderTTNotdef;
}
static int
set_RenderTTNotdef(i_ctx_t *i_ctx_p, bool val)
{
    i_ctx_p->RenderTTNotdef = val;
    return 0;
}

static const bool_param_def_t user_bool_params[] =
{
    {"AccurateScreens", current_AccurateScreens, set_AccurateScreens},
    {"LockFilePermissions", current_LockFilePermissions, set_LockFilePermissions},
    {"RenderTTNotdef", current_RenderTTNotdef, set_RenderTTNotdef},
    {"OverrideICC", current_OverrideICC, set_OverrideICC},
};

/* The user parameter set */
static const param_set user_param_set =
{
    user_size_t_params, countof(user_size_t_params),
    user_i64_params, countof(user_i64_params),
    user_long_params, countof(user_long_params),
    user_bool_params, countof(user_bool_params),
    user_string_params, countof(user_string_params)
};

/* <dict> .setuserparams - */
/* We break this out for use when switching contexts. */
int
set_user_params(i_ctx_t *i_ctx_p, const ref *paramdict)
{
    dict_param_list list;
    int code, i;

    check_type(*paramdict, t_dictionary);
    code = dict_param_list_read(&list, paramdict, NULL, false, iimemory);
    if (code < 0)
        return code;
    code = setparams(i_ctx_p, (gs_param_list *)&list, &user_param_set);
    iparam_list_release(&list);
    if (code < 0)
        return code;

    {
        int index, code;
        ref elt[2], *userparams_dict;

        if (dict_find_string(systemdict, "userparams", &userparams_dict) < 0)
            return 0;

        index = dict_first(paramdict);
        while ((index = dict_next(paramdict, index, elt)) >= 0)
        {
            if (r_has_type(&elt[0], t_name)) {
                ref sref;

                name_string_ref(imemory, (const ref *)&elt[0], &sref);
                if (r_is_number(&elt[1])) {
                    for (i = 0;i < countof(user_size_t_params);i++) {
                        if (strlen(user_size_t_params[i].pname) == r_size(&sref) && strncmp((const char *)sref.value.bytes, user_size_t_params[i].pname, r_size(&sref)) == 0) {
                            code = dict_put(userparams_dict, &elt[0], &elt[1], &idict_stack);
                            if (code < 0)
                                return code;
                            break;
                        }
                    }
                    for (i = 0;i < countof(user_i64_params);i++) {
                        if (strlen(user_i64_params[i].pname) == r_size(&sref) && strncmp((const char *)sref.value.bytes, user_i64_params[i].pname, r_size(&sref)) == 0) {
                            /* We only have one i64 parameter 'VMThreshold', and it needs special cas treatment. If we ever have more we'll
                             * need to isolate it. If VMThreshold is '-1' then it takes a default value, which is hadnled by set_vmthreshold.
                             * What we need to do is set the value of the PostScript object to be the value actually in use.
                             */
                            gs_memory_gc_status_t stat;

                            gs_memory_gc_status(iimemory_local, &stat);
                            if (r_has_type(&elt[1], t_integer))
                                    elt[1].value.intval = (int)stat.vm_threshold;
                            if (r_has_type(&elt[1], t_real))
                                    elt[1].value.realval = (float)stat.vm_threshold;
                            code = dict_put(userparams_dict, &elt[0], &elt[1], &idict_stack);
                            if (code < 0)
                                return code;
                            break;
                        }
                    }
                    for (i = 0;i < countof(user_long_params);i++) {
                        if (strlen(user_long_params[i].pname) == r_size(&sref) && strncmp((const char *)sref.value.bytes, user_long_params[i].pname, r_size(&sref)) == 0) {
                            code = dict_put(userparams_dict, &elt[0], &elt[1], &idict_stack);
                            if (code < 0)
                                return code;
                            break;
                        }
                    }
                }
                if (r_has_type(&elt[1], t_boolean)) {
                    for (i = 0;i < countof(user_bool_params);i++) {
                        if (strlen(user_bool_params[i].pname) == r_size(&sref) && strncmp((const char *)sref.value.bytes, user_bool_params[i].pname, r_size(&sref)) == 0) {
                            code = dict_put(userparams_dict, &elt[0], &elt[1], &idict_stack);
                            if (code < 0)
                                return code;
                            break;
                        }
                    }
                }
                if (r_has_type(&elt[1], t_string)) {
                    for (i = 0;i < countof(user_string_params);i++) {
                        if (strlen(user_string_params[i].pname) == r_size(&sref) && strncmp((const char *)sref.value.bytes, user_string_params[i].pname, r_size(&sref)) == 0) {
                            code = dict_put(userparams_dict, &elt[0], &elt[1], &idict_stack);
                            if (code < 0)
                                return code;
                            break;
                        }
                    }
                }
                if (r_size(&sref) == 17 && strncmp((const char *)sref.value.bytes, "ProcessDSCComment", r_size(&sref)) == 0) {
                    if (!r_has_type(&elt[1], t_null) && !r_is_array(&elt[1]))
                        return_error(gs_error_typecheck);
                    code = dict_put(userparams_dict, &elt[0], &elt[1], &idict_stack);
                    if (code < 0)
                        return code;
                }
                if (r_size(&sref) == 14 && strncmp((const char *)sref.value.bytes, "ProcessComment", r_size(&sref)) == 0) {
                    if (!r_has_type(&elt[1], t_null) && !r_is_array(&elt[1]))
                        return_error(gs_error_typecheck);
                    code = dict_put(userparams_dict, &elt[0], &elt[1], &idict_stack);
                    if (code < 0)
                        return code;
                }
                if (r_size(&sref) == 16 && strncmp((const char *)sref.value.bytes, "IdiomRecognition", r_size(&sref)) == 0) {
                    if (!r_has_type(&elt[1], t_null) && !r_is_array(&elt[1]) && !r_has_type(&elt[1], t_boolean))
                        return_error(gs_error_typecheck);
                    code = dict_put(userparams_dict, &elt[0], &elt[1], &idict_stack);
                    if (code < 0)
                        return code;
                }
            }
        }
    }
    return code;
}
static int
zsetuserparams(i_ctx_t *i_ctx_p)
{
    os_ptr op = osp;
    int code;

    check_op(1);
    code = set_user_params(i_ctx_p, op);
    if (code >= 0) {
        /* Update cached scanner options. */
        i_ctx_p->scanner_options =
            ztoken_scanner_options(op, i_ctx_p->scanner_options);
        pop(1);
    }
    return code;
}

/* - .currentuserparams <name1> <value1> ... */
static int
zcurrentuserparams(i_ctx_t *i_ctx_p)
{
    return currentparams(i_ctx_p, &user_param_set);
}

/* <name> .getuserparam <value> */
static int
zgetuserparam(i_ctx_t *i_ctx_p)
{
    return currentparam1(i_ctx_p, &user_param_set);
}

/* ------ Initialization procedure ------ */

const op_def zusparam_op_defs[] =
{
        /* User and system parameters are accessible even in Level 1 */
        /* (if this is a Level 2 system). */
    {"0.currentsystemparams", zcurrentsystemparams},
    {"0.currentuserparams", zcurrentuserparams},
    {"1.getsystemparam", zgetsystemparam},
    {"1.getuserparam", zgetuserparam},
    {"1.setsystemparams", zsetsystemparams},
    {"1.setuserparams", zsetuserparams},
        /* The rest of the operators are defined only in Level 2. */
    op_def_begin_level2(),
    {"1.checkpassword", zcheckpassword},
    op_def_end(0)
};

/* ------ Internal procedures ------ */

/* Set the values of a parameter set from a parameter list. */
/* We don't attempt to back out if anything fails. */
static int
setparams(i_ctx_t *i_ctx_p, gs_param_list * plist, const param_set * pset)
{
    int code;
    unsigned int i;

    for (i = 0; i < pset->size_t_count; i++) {
        const size_t_param_def_t *pdef = &pset->size_t_defs[i];
        size_t val;

        if (pdef->set == NULL)
            continue;
        code = param_read_size_t(plist, pdef->pname, &val);
        switch (code) {
            default:    /* invalid */
                return code;
            case 1:   /* missing */
                break;
            case 0:
                if (val < pdef->min_value || val > pdef->max_value)
                    return_error(gs_error_rangecheck);
                code = (*pdef->set)(i_ctx_p, val);
                if (code < 0)
                    return code;
        }
    }

    for (i = 0; i < pset->i64_count; i++) {
        const i64_param_def_t *pdef = &pset->i64_defs[i];
        int64_t val;

        if (pdef->set == NULL)
            continue;
        code = param_read_i64(plist, pdef->pname, &val);
        switch (code) {
            default:    /* invalid */
                return code;
            case 1:   /* missing */
                break;
            case 0:
                if (val < pdef->min_value || val > pdef->max_value)
                    return_error(gs_error_rangecheck);
                code = (*pdef->set)(i_ctx_p, val);
                if (code < 0)
                    return code;
        }
    }

    for (i = 0; i < pset->long_count; i++) {
        const long_param_def_t *pdef = &pset->long_defs[i];
        long val;

        if (pdef->set == NULL)
            continue;
        code = param_read_long(plist, pdef->pname, &val);
        switch (code) {
            default:    /* invalid */
                return code;
            case 1:   /* missing */
                break;
            case 0:
                if (val < pdef->min_value || val > pdef->max_value)
                    return_error(gs_error_rangecheck);
                code = (*pdef->set)(i_ctx_p, val);
                if (code < 0)
                    return code;
        }
    }
    for (i = 0; i < pset->bool_count; i++) {
        const bool_param_def_t *pdef = &pset->bool_defs[i];
        bool val;

        if (pdef->set == NULL)
            continue;
        code = param_read_bool(plist, pdef->pname, &val);
        if (code == 0)
            code = (*pdef->set)(i_ctx_p, val);
        if (code < 0)
            return code;
    }

    for (i = 0; i < pset->string_count; i++) {
        const string_param_def_t *pdef = &pset->string_defs[i];
        gs_param_string val;

        if (pdef->set == NULL)
            continue;
        code = param_read_string(plist, pdef->pname, &val);
        switch (code) {
            default:    /* invalid */
                return code;
            case 1:   /* missing */
                break;
            case 0:
                code = (*pdef->set)(i_ctx_p, &val);
                if (code < 0)
                    return code;
        }
    }

    return 0;
}

/* Get the current values of a parameter set to the stack. */
static bool
pname_matches(const char *pname, const ref * psref)
{
    return
        (psref == 0 ||
         !bytes_compare((const byte *)pname, strlen(pname),
                        psref->value.const_bytes, r_size(psref)));
}
static int
current_param_list(i_ctx_t *i_ctx_p, const param_set * pset,
                   const ref * psref /*t_string */ )
{
    stack_param_list list;
    gs_param_list *const plist = (gs_param_list *)&list;
    int code = 0;
    unsigned int i;

    stack_param_list_write(&list, &o_stack, NULL, iimemory);

    for (i = 0; i < pset->size_t_count; i++) {
        const char *pname = pset->size_t_defs[i].pname;

        if (pname_matches(pname, psref)) {
            if (pset->size_t_defs[i].current != NULL) {
                size_t val = (*pset->size_t_defs[i].current)(i_ctx_p);

                code = param_write_size_t(plist, pname, &val);
                if (code < 0)
                    return code;
            }
        }
    }
    for (i = 0; i < pset->i64_count; i++) {
        const char *pname = pset->i64_defs[i].pname;

        if (pname_matches(pname, psref)) {
            if (pset->i64_defs[i].current != NULL) {
                int64_t val = (*pset->i64_defs[i].current)(i_ctx_p);

                code = param_write_i64(plist, pname, &val);
                if (code < 0)
                    return code;
            }
        }
    }
    for (i = 0; i < pset->long_count; i++) {
        const char *pname = pset->long_defs[i].pname;

        if (pname_matches(pname, psref)) {
            if (pset->long_defs[i].current != NULL) {
                long val = (*pset->long_defs[i].current)(i_ctx_p);

                code = param_write_long(plist, pname, &val);
                if (code < 0)
                    return code;
            }
        }
    }
    for (i = 0; i < pset->bool_count; i++) {
        const char *pname = pset->bool_defs[i].pname;

        if (pname_matches(pname, psref)) {
            if (pset->bool_defs[i].current != NULL) {
                bool val = (*pset->bool_defs[i].current)(i_ctx_p);

                code = param_write_bool(plist, pname, &val);
                if (code < 0)
                    return code;
            }
        }
    }
    for (i = 0; i < pset->string_count; i++) {
        const char *pname = pset->string_defs[i].pname;

        if (pname_matches(pname, psref)) {
            gs_param_string val;

            if (pset->string_defs[i].current != NULL) {
                (*pset->string_defs[i].current)(i_ctx_p, &val);
                code = param_write_string(plist, pname, &val);
                if (code < 0)
                    return code;
            }
        }
    }
    if (psref) {
        /*
         * Scanner options can be read, but only individually by .getuserparam.
         * This avoids putting them into userparams, and being affected by save/restore.
         */
        const char *pname;
        bool val;
        int code;

        switch (ztoken_get_scanner_option(psref, i_ctx_p->scanner_options, &pname)) {
            case 0:
                code = param_write_null(plist, pname);
                break;
            case 1:
                val = true;
                code = param_write_bool(plist, pname, &val);
                break;
            default:
                code = 0;
                break;
        }
        if (code < 0)
            return code;
    }
    return code;
}

/* Get the current values of a parameter set to the stack. */
static int
currentparams(i_ctx_t *i_ctx_p, const param_set * pset)
{
    return current_param_list(i_ctx_p, pset, NULL);
}

/* Get the value of a single parameter to the stack, or signal an error. */
static int
currentparam1(i_ctx_t *i_ctx_p, const param_set * pset)
{
    os_ptr op = osp;
    ref sref;
    int code;

    check_type(*op, t_name);
    check_ostack(2);
    name_string_ref(imemory, (const ref *)op, &sref);
    code = current_param_list(i_ctx_p, pset, &sref);
    if (code < 0)
        return code;
    if (osp == op)
        return_error(gs_error_undefined);
    /* We know osp == op + 2. */
    ref_assign(op, op + 2);
    pop(2);
    return code;
}

Coverage Report

Created: 2026-10-28 08:05