/*

 * Copyright (c) 1998, 2006, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

#ifdef __linux__

#include <stdio.h>

#include <ctype.h>

#endif

#include <pwd.h>

#include <locale.h>

#ifndef ARCHPROPNAME

#error "The macro ARCHPROPNAME has not been defined"

#endif

#include <sys/utsname.h>        /* For os_name and os_version */

#include <langinfo.h>           /* For nl_langinfo */

#include <stdlib.h>

#include <string.h>

#include <sys/types.h>

#include <unistd.h>

#include <sys/param.h>

#include <time.h>

#include <errno.h>

#include "locale_str.h"

#include "java_props.h"

#ifdef __linux__

#define CODESET _NL_CTYPE_CODESET_NAME

#else

#ifdef ALT_CODESET_KEY

#define CODESET ALT_CODESET_KEY

#endif

#endif

/* Take an array of string pairs (map of key->value) and a string (key).

 * Examine each pair in the map to see if the first string (key) matches the

 * string.  If so, store the second string of the pair (value) in the value and

 * return 1.  Otherwise do nothing and return 0.  The end of the map is

 * indicated by an empty string at the start of a pair (key of "").

 */

static int

mapLookup(char* map[], const char* key, char** value) {

    int i;

    for (i = 0; strcmp(map[i], ""); i += 2){

        if (!strcmp(key, map[i])){

            *value = map[i + 1];

            return 1;

        }

    }

    return 0;

}

/* This function sets an environment variable using envstring.

 * The format of envstring is "name=value".

 * If the name has already existed, it will append value to the name.

 */

static void

setPathEnvironment(char *envstring)

{

    char name[20], *value, *current;

    value = strchr(envstring, '='); /* locate name and value separator */

    if (! value)

        return; /* not a valid environment setting */

    /* copy first part as environment name */

    strncpy(name, envstring, value - envstring);

    name[value-envstring] = '\0';

    value++; /* set value point to value of the envstring */

    current = getenv(name);

    if (current) {

        if (! strstr(current, value)) {

            /* value is not found in current environment, append it */

            char *temp = malloc(strlen(envstring) + strlen(current) + 2);

        strcpy(temp, name);

        strcat(temp, "=");

        strcat(temp, current);

        strcat(temp, ":");

        strcat(temp, value);

        putenv(temp);

        }

        /* else the value has already been set, do nothing */

    }

    else {

        /* environment variable is not found */

        putenv(envstring);

    }

}

#ifndef P_tmpdir

#define P_tmpdir "/var/tmp"

#endif

/* This function gets called very early, before VM_CALLS are setup.

 * Do not use any of the VM_CALLS entries!!!

 */

java_props_t *

GetJavaProperties(JNIEnv *env)

{

    static java_props_t sprops = {0};

    char *v; /* tmp var */

    if (sprops.user_dir) {

        return &sprops;

    }

    /* tmp dir */

    sprops.tmp_dir = P_tmpdir;

    /* Printing properties */

    sprops.printerJob = "sun.print.PSPrinterJob";

    /* patches/service packs installed */

    sprops.patch_level = "unknown";

    /* Java 2D properties */

    sprops.graphics_env = "sun.awt.X11GraphicsEnvironment";

    sprops.awt_toolkit = NULL;

    /* This is used only for debugging of font problems. */

    v = getenv("JAVA2D_FONTPATH");

    sprops.font_dir = v ? v : NULL;

#ifdef SI_ISALIST

    /* supported instruction sets */

    {

        char list[258];

        sysinfo(SI_ISALIST, list, sizeof(list));

        sprops.cpu_isalist = strdup(list);

    }

#else

    sprops.cpu_isalist = NULL;

#endif

    /* endianness of platform */

    {

        unsigned int endianTest = 0xff000000;

        if (((char*)(&endianTest))[0] != 0)

            sprops.cpu_endian = "big";

        else

            sprops.cpu_endian = "little";

    }

    /* os properties */

    {

        struct utsname name;

        uname(&name);

        sprops.os_name = strdup(name.sysname);

        sprops.os_version = strdup(name.release);

        sprops.os_arch = ARCHPROPNAME;

        if (getenv("GNOME_DESKTOP_SESSION_ID") != NULL) {

            sprops.desktop = "gnome";

        }

        else {

            sprops.desktop = NULL;

        }

    }

    /* Determine the language, country, variant, and encoding from the host,

     * and store these in the user.language, user.country, user.variant and

     * file.encoding system properties. */

    }

#ifdef __linux__

#if __BYTE_ORDER == __LITTLE_ENDIAN

    sprops.unicode_encoding = "UnicodeLittle";

#else

    sprops.unicode_encoding = "UnicodeBig";

#endif

#else

    sprops.unicode_encoding = "UnicodeBig";

#endif

    /* user properties */

    {

        struct passwd *pwent = getpwuid(getuid());

        sprops.user_name = pwent ? strdup(pwent->pw_name) : "?";

        sprops.user_home = pwent ? strdup(pwent->pw_dir) : "?";

    }

    /* User TIMEZONE */

    {

        /*

         * We defer setting up timezone until it's actually necessary.

         * Refer to TimeZone.getDefault(). However, the system

         * property is necessary to be able to be set by the command

         * line interface -D. Here temporarily set a null string to

         * timezone.

         */

        tzset();        /* for compatibility */

        sprops.timezone = "";

    }

    /* Current directory */

    {

        char buf[MAXPATHLEN];

        errno = 0;

        if (getcwd(buf, sizeof(buf))  == NULL)

            JNU_ThrowByName(env, "java/lang/Error",

             "Properties init: Could not determine current working directory.");

        else

            sprops.user_dir = strdup(buf);

    }

    sprops.file_separator = "/";

    sprops.path_separator = ":";

    sprops.line_separator = "\n";

    /* Append CDE message and resource search path to NLSPATH and

     * XFILESEARCHPATH, in order to pick localized message for

     * FileSelectionDialog window (Bug 4173641).

     */

    setPathEnvironment("NLSPATH=/usr/dt/lib/nls/msg/%L/%N.cat");

    setPathEnvironment("XFILESEARCHPATH=/usr/dt/app-defaults/%L/Dt");

    return &sprops;

}

jstring

GetStringPlatform(JNIEnv *env, nchar* cstr)

{

    return JNU_NewStringPlatform(env, cstr);

}