1/*
2 * Copyright (c) 1998, 2016, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26#if defined(__linux__) || defined(_ALLBSD_SOURCE)
27#include <stdio.h>
28#include <ctype.h>
29#endif
30#include <pwd.h>
31#include <locale.h>
32#ifndef ARCHPROPNAME
33#error "The macro ARCHPROPNAME has not been defined"
34#endif
35#include <sys/utsname.h>        /* For os_name and os_version */
36#include <langinfo.h>           /* For nl_langinfo */
37#include <stdlib.h>
38#include <string.h>
39#include <sys/types.h>
40#include <unistd.h>
41#include <sys/param.h>
42#include <time.h>
43#include <errno.h>
44
45#ifdef MACOSX
46#include "java_props_macosx.h"
47#endif
48
49#if defined(_ALLBSD_SOURCE)
50#if !defined(P_tmpdir)
51#include <paths.h>
52#define P_tmpdir _PATH_VARTMP
53#endif
54#endif
55
56#include "locale_str.h"
57#include "java_props.h"
58
59#if !defined(_ALLBSD_SOURCE)
60#ifdef __linux__
61  #ifndef CODESET
62  #define CODESET _NL_CTYPE_CODESET_NAME
63  #endif
64#else
65#ifdef ALT_CODESET_KEY
66#define CODESET ALT_CODESET_KEY
67#endif
68#endif
69#endif /* !_ALLBSD_SOURCE */
70
71/* Take an array of string pairs (map of key->value) and a string (key).
72 * Examine each pair in the map to see if the first string (key) matches the
73 * string.  If so, store the second string of the pair (value) in the value and
74 * return 1.  Otherwise do nothing and return 0.  The end of the map is
75 * indicated by an empty string at the start of a pair (key of "").
76 */
77static int
78mapLookup(char* map[], const char* key, char** value) {
79    int i;
80    for (i = 0; strcmp(map[i], ""); i += 2){
81        if (!strcmp(key, map[i])){
82            *value = map[i + 1];
83            return 1;
84        }
85    }
86    return 0;
87}
88
89#ifndef P_tmpdir
90#define P_tmpdir "/var/tmp"
91#endif
92
93static int ParseLocale(JNIEnv* env, int cat, char ** std_language, char ** std_script,
94                       char ** std_country, char ** std_variant, char ** std_encoding) {
95    char *temp = NULL;
96    char *language = NULL, *country = NULL, *variant = NULL,
97         *encoding = NULL;
98    char *p, *encoding_variant, *old_temp, *old_ev;
99    char *lc;
100
101    /* Query the locale set for the category */
102
103#ifdef MACOSX
104    lc = setupMacOSXLocale(cat); // malloc'd memory, need to free
105#else
106    lc = setlocale(cat, NULL);
107#endif
108
109#ifndef __linux__
110    if (lc == NULL) {
111        return 0;
112    }
113
114    temp = malloc(strlen(lc) + 1);
115    if (temp == NULL) {
116#ifdef MACOSX
117        free(lc); // malloced memory
118#endif
119        JNU_ThrowOutOfMemoryError(env, NULL);
120        return 0;
121    }
122
123    if (cat == LC_CTYPE) {
124        /*
125         * Workaround for Solaris bug 4201684: Xlib doesn't like @euro
126         * locales. Since we don't depend on the libc @euro behavior,
127         * we just remove the qualifier.
128         * On Linux, the bug doesn't occur; on the other hand, @euro
129         * is needed there because it's a shortcut that also determines
130         * the encoding - without it, we wouldn't get ISO-8859-15.
131         * Therefore, this code section is Solaris-specific.
132         */
133        strcpy(temp, lc);
134        p = strstr(temp, "@euro");
135        if (p != NULL) {
136            *p = '\0';
137            setlocale(LC_ALL, temp);
138        }
139    }
140#else
141    if (lc == NULL || !strcmp(lc, "C") || !strcmp(lc, "POSIX")) {
142        lc = "en_US";
143    }
144
145    temp = malloc(strlen(lc) + 1);
146    if (temp == NULL) {
147        JNU_ThrowOutOfMemoryError(env, NULL);
148        return 0;
149    }
150
151#endif
152
153    /*
154     * locale string format in Solaris is
155     * <language name>_<country name>.<encoding name>@<variant name>
156     * <country name>, <encoding name>, and <variant name> are optional.
157     */
158
159    strcpy(temp, lc);
160#ifdef MACOSX
161    free(lc); // malloced memory
162#endif
163    /* Parse the language, country, encoding, and variant from the
164     * locale.  Any of the elements may be missing, but they must occur
165     * in the order language_country.encoding@variant, and must be
166     * preceded by their delimiter (except for language).
167     *
168     * If the locale name (without .encoding@variant, if any) matches
169     * any of the names in the locale_aliases list, map it to the
170     * corresponding full locale name.  Most of the entries in the
171     * locale_aliases list are locales that include a language name but
172     * no country name, and this facility is used to map each language
173     * to a default country if that's possible.  It's also used to map
174     * the Solaris locale aliases to their proper Java locale IDs.
175     */
176
177    encoding_variant = malloc(strlen(temp)+1);
178    if (encoding_variant == NULL) {
179        free(temp);
180        JNU_ThrowOutOfMemoryError(env, NULL);
181        return 0;
182    }
183
184    if ((p = strchr(temp, '.')) != NULL) {
185        strcpy(encoding_variant, p); /* Copy the leading '.' */
186        *p = '\0';
187    } else if ((p = strchr(temp, '@')) != NULL) {
188        strcpy(encoding_variant, p); /* Copy the leading '@' */
189        *p = '\0';
190    } else {
191        *encoding_variant = '\0';
192    }
193
194    if (mapLookup(locale_aliases, temp, &p)) {
195        old_temp = temp;
196        temp = realloc(temp, strlen(p)+1);
197        if (temp == NULL) {
198            free(old_temp);
199            free(encoding_variant);
200            JNU_ThrowOutOfMemoryError(env, NULL);
201            return 0;
202        }
203        strcpy(temp, p);
204        old_ev = encoding_variant;
205        encoding_variant = realloc(encoding_variant, strlen(temp)+1);
206        if (encoding_variant == NULL) {
207            free(old_ev);
208            free(temp);
209            JNU_ThrowOutOfMemoryError(env, NULL);
210            return 0;
211        }
212        // check the "encoding_variant" again, if any.
213        if ((p = strchr(temp, '.')) != NULL) {
214            strcpy(encoding_variant, p); /* Copy the leading '.' */
215            *p = '\0';
216        } else if ((p = strchr(temp, '@')) != NULL) {
217            strcpy(encoding_variant, p); /* Copy the leading '@' */
218            *p = '\0';
219        }
220    }
221
222    language = temp;
223    if ((country = strchr(temp, '_')) != NULL) {
224        *country++ = '\0';
225    }
226
227    p = encoding_variant;
228    if ((encoding = strchr(p, '.')) != NULL) {
229        p[encoding++ - p] = '\0';
230        p = encoding;
231    }
232    if ((variant = strchr(p, '@')) != NULL) {
233        p[variant++ - p] = '\0';
234    }
235
236    /* Normalize the language name */
237    if (std_language != NULL) {
238        *std_language = "en";
239        if (language != NULL && mapLookup(language_names, language, std_language) == 0) {
240            *std_language = malloc(strlen(language)+1);
241            strcpy(*std_language, language);
242        }
243    }
244
245    /* Normalize the country name */
246    if (std_country != NULL && country != NULL) {
247        if (mapLookup(country_names, country, std_country) == 0) {
248            *std_country = malloc(strlen(country)+1);
249            strcpy(*std_country, country);
250        }
251    }
252
253    /* Normalize the script and variant name.  Note that we only use
254     * variants listed in the mapping array; others are ignored.
255     */
256    if (variant != NULL) {
257        if (std_script != NULL) {
258            mapLookup(script_names, variant, std_script);
259        }
260
261        if (std_variant != NULL) {
262            mapLookup(variant_names, variant, std_variant);
263        }
264    }
265
266    /* Normalize the encoding name.  Note that we IGNORE the string
267     * 'encoding' extracted from the locale name above.  Instead, we use the
268     * more reliable method of calling nl_langinfo(CODESET).  This function
269     * returns an empty string if no encoding is set for the given locale
270     * (e.g., the C or POSIX locales); we use the default ISO 8859-1
271     * converter for such locales.
272     */
273    if (std_encoding != NULL) {
274        /* OK, not so reliable - nl_langinfo() gives wrong answers on
275         * Euro locales, in particular. */
276        if (strcmp(p, "ISO8859-15") == 0)
277            p = "ISO8859-15";
278        else
279            p = nl_langinfo(CODESET);
280
281        /* Convert the bare "646" used on Solaris to a proper IANA name */
282        if (strcmp(p, "646") == 0)
283            p = "ISO646-US";
284
285        /* return same result nl_langinfo would return for en_UK,
286         * in order to use optimizations. */
287        *std_encoding = (*p != '\0') ? p : "ISO8859-1";
288
289#ifdef __linux__
290        /*
291         * Remap the encoding string to a different value for japanese
292         * locales on linux so that customized converters are used instead
293         * of the default converter for "EUC-JP". The customized converters
294         * omit support for the JIS0212 encoding which is not supported by
295         * the variant of "EUC-JP" encoding used on linux
296         */
297        if (strcmp(p, "EUC-JP") == 0) {
298            *std_encoding = "EUC-JP-LINUX";
299        }
300#else
301        if (strcmp(p,"eucJP") == 0) {
302            /* For Solaris use customized vendor defined character
303             * customized EUC-JP converter
304             */
305            *std_encoding = "eucJP-open";
306        } else if (strcmp(p, "Big5") == 0 || strcmp(p, "BIG5") == 0) {
307            /*
308             * Remap the encoding string to Big5_Solaris which augments
309             * the default converter for Solaris Big5 locales to include
310             * seven additional ideographic characters beyond those included
311             * in the Java "Big5" converter.
312             */
313            *std_encoding = "Big5_Solaris";
314        } else if (strcmp(p, "Big5-HKSCS") == 0) {
315            /*
316             * Solaris uses HKSCS2001
317             */
318            *std_encoding = "Big5-HKSCS-2001";
319        }
320#endif
321#ifdef MACOSX
322        /*
323         * For the case on MacOS X where encoding is set to US-ASCII, but we
324         * don't have any encoding hints from LANG/LC_ALL/LC_CTYPE, use UTF-8
325         * instead.
326         *
327         * The contents of ASCII files will still be read and displayed
328         * correctly, but so will files containing UTF-8 characters beyond the
329         * standard ASCII range.
330         *
331         * Specifically, this allows apps launched by double-clicking a .jar
332         * file to correctly read UTF-8 files using the default encoding (see
333         * 8011194).
334         */
335        if (strcmp(p,"US-ASCII") == 0 && getenv("LANG") == NULL &&
336            getenv("LC_ALL") == NULL && getenv("LC_CTYPE") == NULL) {
337            *std_encoding = "UTF-8";
338        }
339#endif
340    }
341
342    free(temp);
343    free(encoding_variant);
344
345    return 1;
346}
347
348/* This function gets called very early, before VM_CALLS are setup.
349 * Do not use any of the VM_CALLS entries!!!
350 */
351java_props_t *
352GetJavaProperties(JNIEnv *env)
353{
354    static java_props_t sprops;
355    char *v; /* tmp var */
356
357    if (sprops.user_dir) {
358        return &sprops;
359    }
360
361    /* tmp dir */
362    sprops.tmp_dir = P_tmpdir;
363#ifdef MACOSX
364    /* darwin has a per-user temp dir */
365    static char tmp_path[PATH_MAX];
366    int pathSize = confstr(_CS_DARWIN_USER_TEMP_DIR, tmp_path, PATH_MAX);
367    if (pathSize > 0 && pathSize <= PATH_MAX) {
368        sprops.tmp_dir = tmp_path;
369    }
370#endif /* MACOSX */
371
372    /* Printing properties */
373#ifdef MACOSX
374    sprops.printerJob = "sun.lwawt.macosx.CPrinterJob";
375#else
376    sprops.printerJob = "sun.print.PSPrinterJob";
377#endif
378
379    /* patches/service packs installed */
380    sprops.patch_level = "unknown";
381
382    /* Java 2D/AWT properties */
383#ifdef MACOSX
384    // Always the same GraphicsEnvironment and Toolkit on Mac OS X
385    sprops.graphics_env = "sun.awt.CGraphicsEnvironment";
386    sprops.awt_toolkit = "sun.lwawt.macosx.LWCToolkit";
387
388    // check if we're in a GUI login session and set java.awt.headless=true if not
389    sprops.awt_headless = isInAquaSession() ? NULL : "true";
390#else
391    sprops.graphics_env = "sun.awt.X11GraphicsEnvironment";
392    sprops.awt_toolkit = "sun.awt.X11.XToolkit";
393#endif
394
395    /* This is used only for debugging of font problems. */
396    v = getenv("JAVA2D_FONTPATH");
397    sprops.font_dir = v ? v : NULL;
398
399#ifdef SI_ISALIST
400    /* supported instruction sets */
401    {
402        char list[258];
403        sysinfo(SI_ISALIST, list, sizeof(list));
404        sprops.cpu_isalist = strdup(list);
405    }
406#else
407    sprops.cpu_isalist = NULL;
408#endif
409
410    /* endianness of platform */
411    {
412        unsigned int endianTest = 0xff000000;
413        if (((char*)(&endianTest))[0] != 0)
414            sprops.cpu_endian = "big";
415        else
416            sprops.cpu_endian = "little";
417    }
418
419    /* os properties */
420    {
421#ifdef MACOSX
422        setOSNameAndVersion(&sprops);
423#else
424        struct utsname name;
425        uname(&name);
426        sprops.os_name = strdup(name.sysname);
427#ifdef _AIX
428        {
429            char *os_version = malloc(strlen(name.version) +
430                                      strlen(name.release) + 2);
431            if (os_version != NULL) {
432                strcpy(os_version, name.version);
433                strcat(os_version, ".");
434                strcat(os_version, name.release);
435            }
436            sprops.os_version = os_version;
437        }
438#else
439        sprops.os_version = strdup(name.release);
440#endif /* _AIX   */
441#endif /* MACOSX */
442
443        sprops.os_arch = ARCHPROPNAME;
444
445        if (getenv("GNOME_DESKTOP_SESSION_ID") != NULL) {
446            sprops.desktop = "gnome";
447        }
448        else {
449            sprops.desktop = NULL;
450        }
451    }
452
453    /* ABI property (optional) */
454#ifdef JDK_ARCH_ABI_PROP_NAME
455    sprops.sun_arch_abi = JDK_ARCH_ABI_PROP_NAME;
456#endif
457
458    /* Determine the language, country, variant, and encoding from the host,
459     * and store these in the user.language, user.country, user.variant and
460     * file.encoding system properties. */
461    setlocale(LC_ALL, "");
462    if (ParseLocale(env, LC_CTYPE,
463                    &(sprops.format_language),
464                    &(sprops.format_script),
465                    &(sprops.format_country),
466                    &(sprops.format_variant),
467                    &(sprops.encoding))) {
468        ParseLocale(env, LC_MESSAGES,
469                    &(sprops.language),
470                    &(sprops.script),
471                    &(sprops.country),
472                    &(sprops.variant),
473                    NULL);
474    } else {
475        sprops.language = "en";
476        sprops.encoding = "ISO8859-1";
477    }
478    sprops.display_language = sprops.language;
479    sprops.display_script = sprops.script;
480    sprops.display_country = sprops.country;
481    sprops.display_variant = sprops.variant;
482
483    /* ParseLocale failed with OOME */
484    JNU_CHECK_EXCEPTION_RETURN(env, NULL);
485
486#ifdef MACOSX
487    sprops.sun_jnu_encoding = "UTF-8";
488#else
489    sprops.sun_jnu_encoding = sprops.encoding;
490#endif
491
492#ifdef _ALLBSD_SOURCE
493#if BYTE_ORDER == _LITTLE_ENDIAN
494     sprops.unicode_encoding = "UnicodeLittle";
495 #else
496     sprops.unicode_encoding = "UnicodeBig";
497 #endif
498#else /* !_ALLBSD_SOURCE */
499#ifdef __linux__
500#if __BYTE_ORDER == __LITTLE_ENDIAN
501    sprops.unicode_encoding = "UnicodeLittle";
502#else
503    sprops.unicode_encoding = "UnicodeBig";
504#endif
505#else
506    sprops.unicode_encoding = "UnicodeBig";
507#endif
508#endif /* _ALLBSD_SOURCE */
509
510    /* user properties */
511    {
512        struct passwd *pwent = getpwuid(getuid());
513        sprops.user_name = pwent ? strdup(pwent->pw_name) : "?";
514#ifdef MACOSX
515        setUserHome(&sprops);
516#else
517        sprops.user_home = pwent ? strdup(pwent->pw_dir) : NULL;
518#endif
519        if (sprops.user_home == NULL) {
520            sprops.user_home = "?";
521        }
522    }
523
524    /* User TIMEZONE */
525    {
526        /*
527         * We defer setting up timezone until it's actually necessary.
528         * Refer to TimeZone.getDefault(). However, the system
529         * property is necessary to be able to be set by the command
530         * line interface -D. Here temporarily set a null string to
531         * timezone.
532         */
533        tzset();        /* for compatibility */
534        sprops.timezone = "";
535    }
536
537    /* Current directory */
538    {
539        char buf[MAXPATHLEN];
540        errno = 0;
541        if (getcwd(buf, sizeof(buf))  == NULL)
542            JNU_ThrowByName(env, "java/lang/Error",
543             "Properties init: Could not determine current working directory.");
544        else
545            sprops.user_dir = strdup(buf);
546    }
547
548    sprops.file_separator = "/";
549    sprops.path_separator = ":";
550    sprops.line_separator = "\n";
551
552#ifdef MACOSX
553    setProxyProperties(&sprops);
554#endif
555
556    return &sprops;
557}
558
559jstring
560GetStringPlatform(JNIEnv *env, nchar* cstr)
561{
562    return JNU_NewStringPlatform(env, cstr);
563}
564