1 /*
2 * Copyright (c) 1998, 2015, 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 #ifdef JAVASE_EMBEDDED
72 #include <dlfcn.h>
73 #include <sys/stat.h>
74 #endif
75
76 /* Take an array of string pairs (map of key->value) and a string (key).
77 * Examine each pair in the map to see if the first string (key) matches the
78 * string. If so, store the second string of the pair (value) in the value and
79 * return 1. Otherwise do nothing and return 0. The end of the map is
80 * indicated by an empty string at the start of a pair (key of "").
81 */
82 static int
83 mapLookup(char* map[], const char* key, char** value) {
84 int i;
85 for (i = 0; strcmp(map[i], ""); i += 2){
86 if (!strcmp(key, map[i])){
87 *value = map[i + 1];
88 return 1;
89 }
90 }
91 return 0;
92 }
93
94 /* This function sets an environment variable using envstring.
95 * The format of envstring is "name=value".
96 * If the name has already existed, it will append value to the name.
97 */
98 static void
99 setPathEnvironment(char *envstring)
100 {
101 char name[20], *value, *current;
102
103 value = strchr(envstring, '='); /* locate name and value separator */
104
105 if (! value)
106 return; /* not a valid environment setting */
107
108 /* copy first part as environment name */
109 strncpy(name, envstring, value - envstring);
110 name[value-envstring] = '\0';
111
112 value++; /* set value point to value of the envstring */
113
114 current = getenv(name);
115 if (current) {
116 if (! strstr(current, value)) {
117 /* value is not found in current environment, append it */
118 char *temp = malloc(strlen(envstring) + strlen(current) + 2);
119 strcpy(temp, name);
120 strcat(temp, "=");
121 strcat(temp, current);
122 strcat(temp, ":");
123 strcat(temp, value);
124 putenv(temp);
125 }
126 /* else the value has already been set, do nothing */
127 }
128 else {
129 /* environment variable is not found */
130 putenv(envstring);
131 }
132 }
133
134 #ifndef P_tmpdir
135 #define P_tmpdir "/var/tmp"
136 #endif
137
138 static int ParseLocale(JNIEnv* env, int cat, char ** std_language, char ** std_script,
139 char ** std_country, char ** std_variant, char ** std_encoding) {
140 char *temp = NULL;
141 char *language = NULL, *country = NULL, *variant = NULL,
142 *encoding = NULL;
143 char *p, *encoding_variant, *old_temp, *old_ev;
144 char *lc;
145
146 /* Query the locale set for the category */
147
148 #ifdef MACOSX
149 lc = setupMacOSXLocale(cat); // malloc'd memory, need to free
150 #else
151 lc = setlocale(cat, NULL);
152 #endif
153
154 #ifndef __linux__
155 if (lc == NULL) {
156 return 0;
157 }
158
159 temp = malloc(strlen(lc) + 1);
160 if (temp == NULL) {
161 #ifdef MACOSX
162 free(lc); // malloced memory
163 #endif
164 JNU_ThrowOutOfMemoryError(env, NULL);
165 return 0;
166 }
167
168 if (cat == LC_CTYPE) {
169 /*
170 * Workaround for Solaris bug 4201684: Xlib doesn't like @euro
171 * locales. Since we don't depend on the libc @euro behavior,
172 * we just remove the qualifier.
173 * On Linux, the bug doesn't occur; on the other hand, @euro
174 * is needed there because it's a shortcut that also determines
175 * the encoding - without it, we wouldn't get ISO-8859-15.
176 * Therefore, this code section is Solaris-specific.
177 */
178 strcpy(temp, lc);
179 p = strstr(temp, "@euro");
180 if (p != NULL) {
181 *p = '\0';
182 setlocale(LC_ALL, temp);
183 }
184 }
185 #else
186 if (lc == NULL || !strcmp(lc, "C") || !strcmp(lc, "POSIX")) {
187 lc = "en_US";
188 }
189
190 temp = malloc(strlen(lc) + 1);
191 if (temp == NULL) {
192 JNU_ThrowOutOfMemoryError(env, NULL);
193 return 0;
194 }
195
196 #endif
197
198 /*
199 * locale string format in Solaris is
200 * <language name>_<country name>.<encoding name>@<variant name>
201 * <country name>, <encoding name>, and <variant name> are optional.
202 */
203
204 strcpy(temp, lc);
205 #ifdef MACOSX
206 free(lc); // malloced memory
207 #endif
208 /* Parse the language, country, encoding, and variant from the
209 * locale. Any of the elements may be missing, but they must occur
210 * in the order language_country.encoding@variant, and must be
211 * preceded by their delimiter (except for language).
212 *
213 * If the locale name (without .encoding@variant, if any) matches
214 * any of the names in the locale_aliases list, map it to the
215 * corresponding full locale name. Most of the entries in the
216 * locale_aliases list are locales that include a language name but
217 * no country name, and this facility is used to map each language
218 * to a default country if that's possible. It's also used to map
219 * the Solaris locale aliases to their proper Java locale IDs.
220 */
221
222 encoding_variant = malloc(strlen(temp)+1);
223 if (encoding_variant == NULL) {
224 free(temp);
225 JNU_ThrowOutOfMemoryError(env, NULL);
226 return 0;
227 }
228
229 if ((p = strchr(temp, '.')) != NULL) {
230 strcpy(encoding_variant, p); /* Copy the leading '.' */
231 *p = '\0';
232 } else if ((p = strchr(temp, '@')) != NULL) {
233 strcpy(encoding_variant, p); /* Copy the leading '@' */
234 *p = '\0';
235 } else {
236 *encoding_variant = '\0';
237 }
238
239 if (mapLookup(locale_aliases, temp, &p)) {
240 old_temp = temp;
241 temp = realloc(temp, strlen(p)+1);
242 if (temp == NULL) {
243 free(old_temp);
244 free(encoding_variant);
245 JNU_ThrowOutOfMemoryError(env, NULL);
246 return 0;
247 }
248 strcpy(temp, p);
249 old_ev = encoding_variant;
250 encoding_variant = realloc(encoding_variant, strlen(temp)+1);
251 if (encoding_variant == NULL) {
252 free(old_ev);
253 free(temp);
254 JNU_ThrowOutOfMemoryError(env, NULL);
255 return 0;
256 }
257 // check the "encoding_variant" again, if any.
258 if ((p = strchr(temp, '.')) != NULL) {
259 strcpy(encoding_variant, p); /* Copy the leading '.' */
260 *p = '\0';
261 } else if ((p = strchr(temp, '@')) != NULL) {
262 strcpy(encoding_variant, p); /* Copy the leading '@' */
263 *p = '\0';
264 }
265 }
266
267 language = temp;
268 if ((country = strchr(temp, '_')) != NULL) {
269 *country++ = '\0';
270 }
271
272 p = encoding_variant;
273 if ((encoding = strchr(p, '.')) != NULL) {
274 p[encoding++ - p] = '\0';
275 p = encoding;
276 }
277 if ((variant = strchr(p, '@')) != NULL) {
278 p[variant++ - p] = '\0';
279 }
280
281 /* Normalize the language name */
282 if (std_language != NULL) {
283 *std_language = "en";
284 if (language != NULL && mapLookup(language_names, language, std_language) == 0) {
285 *std_language = malloc(strlen(language)+1);
286 strcpy(*std_language, language);
287 }
288 }
289
290 /* Normalize the country name */
291 if (std_country != NULL && country != NULL) {
292 if (mapLookup(country_names, country, std_country) == 0) {
293 *std_country = malloc(strlen(country)+1);
294 strcpy(*std_country, country);
295 }
296 }
297
298 /* Normalize the script and variant name. Note that we only use
299 * variants listed in the mapping array; others are ignored.
300 */
301 if (variant != NULL) {
302 if (std_script != NULL) {
303 mapLookup(script_names, variant, std_script);
304 }
305
306 if (std_variant != NULL) {
307 mapLookup(variant_names, variant, std_variant);
308 }
309 }
310
311 /* Normalize the encoding name. Note that we IGNORE the string
312 * 'encoding' extracted from the locale name above. Instead, we use the
313 * more reliable method of calling nl_langinfo(CODESET). This function
314 * returns an empty string if no encoding is set for the given locale
315 * (e.g., the C or POSIX locales); we use the default ISO 8859-1
316 * converter for such locales.
317 */
318 if (std_encoding != NULL) {
319 /* OK, not so reliable - nl_langinfo() gives wrong answers on
320 * Euro locales, in particular. */
321 if (strcmp(p, "ISO8859-15") == 0)
322 p = "ISO8859-15";
323 else {
324 /* nl_langinfo() returns a pointer to a static buffer which may
325 * be overwritten, so we have to save it for later use. */
326 char *encoding;
327 p = nl_langinfo(CODESET);
328 encoding = malloc(strlen(p) + 1);
329 if (encoding == NULL) {
330 free(temp);
331 free(encoding_variant);
332 JNU_ThrowOutOfMemoryError(env, NULL);
333 return 0;
334 }
335 strcpy(encoding, p);
336 p = encoding;
337 }
338 /* Convert the bare "646" used on Solaris to a proper IANA name */
339 if (strcmp(p, "646") == 0)
340 p = "ISO646-US";
341
342 /* return same result nl_langinfo would return for en_UK,
343 * in order to use optimizations. */
344 *std_encoding = (*p != '\0') ? p : "ISO8859-1";
345
346 #ifdef __linux__
347 /*
348 * Remap the encoding string to a different value for japanese
349 * locales on linux so that customized converters are used instead
350 * of the default converter for "EUC-JP". The customized converters
351 * omit support for the JIS0212 encoding which is not supported by
352 * the variant of "EUC-JP" encoding used on linux
353 */
354 if (strcmp(p, "EUC-JP") == 0) {
355 *std_encoding = "EUC-JP-LINUX";
356 }
357 #else
358 if (strcmp(p,"eucJP") == 0) {
359 /* For Solaris use customized vendor defined character
360 * customized EUC-JP converter
361 */
362 *std_encoding = "eucJP-open";
363 } else if (strcmp(p, "Big5") == 0 || strcmp(p, "BIG5") == 0) {
364 /*
365 * Remap the encoding string to Big5_Solaris which augments
366 * the default converter for Solaris Big5 locales to include
367 * seven additional ideographic characters beyond those included
368 * in the Java "Big5" converter.
369 */
370 *std_encoding = "Big5_Solaris";
371 } else if (strcmp(p, "Big5-HKSCS") == 0) {
372 /*
373 * Solaris uses HKSCS2001
374 */
375 *std_encoding = "Big5-HKSCS-2001";
376 }
377 #endif
378 #ifdef MACOSX
379 /*
380 * For the case on MacOS X where encoding is set to US-ASCII, but we
381 * don't have any encoding hints from LANG/LC_ALL/LC_CTYPE, use UTF-8
382 * instead.
383 *
384 * The contents of ASCII files will still be read and displayed
385 * correctly, but so will files containing UTF-8 characters beyond the
386 * standard ASCII range.
387 *
388 * Specifically, this allows apps launched by double-clicking a .jar
389 * file to correctly read UTF-8 files using the default encoding (see
390 * 8011194).
391 */
392 if (strcmp(p,"US-ASCII") == 0 && getenv("LANG") == NULL &&
393 getenv("LC_ALL") == NULL && getenv("LC_CTYPE") == NULL) {
394 *std_encoding = "UTF-8";
395 }
396 #endif
397 }
398
399 free(temp);
400 free(encoding_variant);
401
402 return 1;
403 }
404
405 #ifdef JAVASE_EMBEDDED
406 /* Determine the default embedded toolkit based on whether libawt_xawt
407 * exists in the JRE. This can still be overridden by -Dawt.toolkit=XXX
408 */
409 static char* getEmbeddedToolkit() {
410 Dl_info dlinfo;
411 char buf[MAXPATHLEN];
412 int32_t len;
413 char *p;
414 struct stat statbuf;
415
416 /* Get address of this library and the directory containing it. */
417 dladdr((void *)getEmbeddedToolkit, &dlinfo);
418 realpath((char *)dlinfo.dli_fname, buf);
419 len = strlen(buf);
420 p = strrchr(buf, '/');
421 /* Default AWT Toolkit on Linux and Solaris is XAWT (libawt_xawt.so). */
422 strncpy(p, "/libawt_xawt.so", MAXPATHLEN-len-1);
423 /* Check if it exists */
424 if (stat(buf, &statbuf) == -1 && errno == ENOENT) {
425 /* No - this is a reduced-headless-jre so use special HToolkit */
426 return "sun.awt.HToolkit";
427 }
428 else {
429 /* Yes - this is a headful JRE so fallback to SE defaults */
430 return NULL;
431 }
432 }
433 #endif
434
435 /* This function gets called very early, before VM_CALLS are setup.
436 * Do not use any of the VM_CALLS entries!!!
437 */
438 java_props_t *
439 GetJavaProperties(JNIEnv *env)
440 {
441 static java_props_t sprops;
442 char *v; /* tmp var */
443
444 if (sprops.user_dir) {
445 return &sprops;
446 }
447
448 /* tmp dir */
449 sprops.tmp_dir = P_tmpdir;
450 #ifdef MACOSX
451 /* darwin has a per-user temp dir */
452 static char tmp_path[PATH_MAX];
453 int pathSize = confstr(_CS_DARWIN_USER_TEMP_DIR, tmp_path, PATH_MAX);
454 if (pathSize > 0 && pathSize <= PATH_MAX) {
455 sprops.tmp_dir = tmp_path;
456 }
457 #endif /* MACOSX */
458
459 /* Printing properties */
460 #ifdef MACOSX
461 sprops.printerJob = "sun.lwawt.macosx.CPrinterJob";
462 #else
463 sprops.printerJob = "sun.print.PSPrinterJob";
464 #endif
465
466 /* patches/service packs installed */
467 sprops.patch_level = "unknown";
468
469 /* Java 2D/AWT properties */
470 #ifdef MACOSX
471 // Always the same GraphicsEnvironment and Toolkit on Mac OS X
472 sprops.graphics_env = "sun.awt.CGraphicsEnvironment";
473 sprops.awt_toolkit = "sun.lwawt.macosx.LWCToolkit";
474
475 // check if we're in a GUI login session and set java.awt.headless=true if not
476 sprops.awt_headless = isInAquaSession() ? NULL : "true";
477 #else
478 sprops.graphics_env = "sun.awt.X11GraphicsEnvironment";
479 #ifdef JAVASE_EMBEDDED
480 sprops.awt_toolkit = getEmbeddedToolkit();
481 if (sprops.awt_toolkit == NULL) // default as below
482 #endif
483 sprops.awt_toolkit = "sun.awt.X11.XToolkit";
484 #endif
485
486 /* This is used only for debugging of font problems. */
487 v = getenv("JAVA2D_FONTPATH");
488 sprops.font_dir = v ? v : NULL;
489
490 #ifdef SI_ISALIST
491 /* supported instruction sets */
492 {
493 char list[258];
494 sysinfo(SI_ISALIST, list, sizeof(list));
495 sprops.cpu_isalist = strdup(list);
496 }
497 #else
498 sprops.cpu_isalist = NULL;
499 #endif
500
501 /* endianness of platform */
502 {
503 unsigned int endianTest = 0xff000000;
504 if (((char*)(&endianTest))[0] != 0)
505 sprops.cpu_endian = "big";
506 else
507 sprops.cpu_endian = "little";
508 }
509
510 /* os properties */
511 {
512 #ifdef MACOSX
513 setOSNameAndVersion(&sprops);
514 #else
515 struct utsname name;
516 uname(&name);
517 sprops.os_name = strdup(name.sysname);
518 sprops.os_version = strdup(name.release);
519 #endif
520
521 sprops.os_arch = ARCHPROPNAME;
522
523 if (getenv("GNOME_DESKTOP_SESSION_ID") != NULL) {
524 sprops.desktop = "gnome";
525 }
526 else {
527 sprops.desktop = NULL;
528 }
529 }
530
531 /* ABI property (optional) */
532 #ifdef JDK_ARCH_ABI_PROP_NAME
533 sprops.sun_arch_abi = JDK_ARCH_ABI_PROP_NAME;
534 #endif
535
536 /* Determine the language, country, variant, and encoding from the host,
537 * and store these in the user.language, user.country, user.variant and
538 * file.encoding system properties. */
539 setlocale(LC_ALL, "");
540 if (ParseLocale(env, LC_CTYPE,
541 &(sprops.format_language),
542 &(sprops.format_script),
543 &(sprops.format_country),
544 &(sprops.format_variant),
545 &(sprops.encoding))) {
546 ParseLocale(env, LC_MESSAGES,
547 &(sprops.language),
548 &(sprops.script),
549 &(sprops.country),
550 &(sprops.variant),
551 NULL);
552 } else {
553 sprops.language = "en";
554 sprops.encoding = "ISO8859-1";
555 }
556 sprops.display_language = sprops.language;
557 sprops.display_script = sprops.script;
558 sprops.display_country = sprops.country;
559 sprops.display_variant = sprops.variant;
560
561 /* ParseLocale failed with OOME */
562 JNU_CHECK_EXCEPTION_RETURN(env, NULL);
563
564 #ifdef MACOSX
565 sprops.sun_jnu_encoding = "UTF-8";
566 #else
567 sprops.sun_jnu_encoding = sprops.encoding;
568 #endif
569
570 #ifdef _ALLBSD_SOURCE
571 #if BYTE_ORDER == _LITTLE_ENDIAN
572 sprops.unicode_encoding = "UnicodeLittle";
573 #else
574 sprops.unicode_encoding = "UnicodeBig";
575 #endif
576 #else /* !_ALLBSD_SOURCE */
577 #ifdef __linux__
578 #if __BYTE_ORDER == __LITTLE_ENDIAN
579 sprops.unicode_encoding = "UnicodeLittle";
580 #else
581 sprops.unicode_encoding = "UnicodeBig";
582 #endif
583 #else
584 sprops.unicode_encoding = "UnicodeBig";
585 #endif
586 #endif /* _ALLBSD_SOURCE */
587
588 /* user properties */
589 {
590 struct passwd *pwent = getpwuid(getuid());
591 sprops.user_name = pwent ? strdup(pwent->pw_name) : "?";
592 #ifdef MACOSX
593 setUserHome(&sprops);
594 #else
595 sprops.user_home = pwent ? strdup(pwent->pw_dir) : NULL;
596 #endif
597 if (sprops.user_home == NULL) {
598 sprops.user_home = "?";
599 }
600 }
601
602 /* User TIMEZONE */
603 {
604 /*
605 * We defer setting up timezone until it's actually necessary.
606 * Refer to TimeZone.getDefault(). However, the system
607 * property is necessary to be able to be set by the command
608 * line interface -D. Here temporarily set a null string to
609 * timezone.
610 */
611 tzset(); /* for compatibility */
612 sprops.timezone = "";
613 }
614
615 /* Current directory */
616 {
617 char buf[MAXPATHLEN];
618 errno = 0;
619 if (getcwd(buf, sizeof(buf)) == NULL)
620 JNU_ThrowByName(env, "java/lang/Error",
621 "Properties init: Could not determine current working directory.");
622 else
623 sprops.user_dir = strdup(buf);
624 }
625
626 sprops.file_separator = "/";
627 sprops.path_separator = ":";
628 sprops.line_separator = "\n";
629
630 #if !defined(_ALLBSD_SOURCE)
631 /* Append CDE message and resource search path to NLSPATH and
632 * XFILESEARCHPATH, in order to pick localized message for
633 * FileSelectionDialog window (Bug 4173641).
634 */
635 setPathEnvironment("NLSPATH=/usr/dt/lib/nls/msg/%L/%N.cat");
636 setPathEnvironment("XFILESEARCHPATH=/usr/dt/app-defaults/%L/Dt");
637 #endif
638
639
640 #ifdef MACOSX
641 setProxyProperties(&sprops);
642 #endif
643
644 return &sprops;
645 }
646
647 jstring
648 GetStringPlatform(JNIEnv *env, nchar* cstr)
649 {
650 return JNU_NewStringPlatform(env, cstr);
651 }