1 /* GLIB - Library of useful routines for C programming 2 * Copyright (C) 1995-1998 Peter Mattis, Spencer Kimball and Josh MacDonald 3 * 4 * This library is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU Lesser General Public 6 * License as published by the Free Software Foundation; either 7 * version 2 of the License, or (at your option) any later version. 8 * 9 * This library is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * Lesser General Public License for more details. 13 * 14 * You should have received a copy of the GNU Lesser General Public 15 * License along with this library; if not, write to the 16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330, 17 * Boston, MA 02111-1307, USA. 18 */ 19 20 /* 21 * Modified by the GLib Team and others 1997-2000. See the AUTHORS 22 * file for a list of people on the GLib Team. See the ChangeLog 23 * files for a list of changes. These files are distributed with 24 * GLib at ftp://ftp.gtk.org/pub/gtk/. 25 */ 26 27 /* 28 * MT safe for the unix part, FIXME: make the win32 part MT safe as well. 29 */ 30 31 #include "config.h" 32 33 #ifdef HAVE_UNISTD_H 34 #include <unistd.h> 35 #endif 36 #include <stdarg.h> 37 #include <stdlib.h> 38 #include <stdio.h> 39 #include <locale.h> 40 #include <string.h> 41 #include <ctype.h> /* For tolower() */ 42 #include <errno.h> 43 #include <sys/types.h> 44 #include <sys/stat.h> 45 #ifdef HAVE_PWD_H 46 #include <pwd.h> 47 #endif 48 #include <sys/types.h> 49 #ifdef HAVE_SYS_PARAM_H 50 #include <sys/param.h> 51 #endif 52 #ifdef HAVE_CRT_EXTERNS_H 53 #include <crt_externs.h> /* for _NSGetEnviron */ 54 #endif 55 56 /* implement gutils's inline functions 57 */ 58 #define G_IMPLEMENT_INLINES 1 59 #define __G_UTILS_C__ 60 #include "glib.h" 61 #include "gprintfint.h" 62 #include "gthreadprivate.h" 63 #include "glibintl.h" 64 #include "galias.h" 65 66 #ifdef MAXPATHLEN 67 #define G_PATH_LENGTH MAXPATHLEN 68 #elif defined (PATH_MAX) 69 #define G_PATH_LENGTH PATH_MAX 70 #elif defined (_PC_PATH_MAX) 71 #define G_PATH_LENGTH sysconf(_PC_PATH_MAX) 72 #else 73 #define G_PATH_LENGTH 2048 74 #endif 75 76 #ifdef G_PLATFORM_WIN32 77 # define STRICT /* Strict typing, please */ 78 # include <windows.h> 79 # undef STRICT 80 # ifndef GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS 81 # define GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT 2 82 # define GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS 4 83 # endif 84 # include <lmcons.h> /* For UNLEN */ 85 #endif /* G_PLATFORM_WIN32 */ 86 87 #ifdef G_OS_WIN32 88 # include <direct.h> 89 # include <shlobj.h> 90 /* older SDK (e.g. msvc 5.0) does not have these*/ 91 # ifndef CSIDL_MYMUSIC 92 # define CSIDL_MYMUSIC 13 93 # endif 94 # ifndef CSIDL_MYVIDEO 95 # define CSIDL_MYVIDEO 14 96 # endif 97 # ifndef CSIDL_INTERNET_CACHE 98 # define CSIDL_INTERNET_CACHE 32 99 # endif 100 # ifndef CSIDL_COMMON_APPDATA 101 # define CSIDL_COMMON_APPDATA 35 102 # endif 103 # ifndef CSIDL_MYPICTURES 104 # define CSIDL_MYPICTURES 0x27 105 # endif 106 # ifndef CSIDL_COMMON_DOCUMENTS 107 # define CSIDL_COMMON_DOCUMENTS 46 108 # endif 109 # ifndef CSIDL_PROFILE 110 # define CSIDL_PROFILE 40 111 # endif 112 # include <process.h> 113 #endif 114 115 #ifdef HAVE_CARBON 116 #include <CoreServices/CoreServices.h> 117 #endif 118 119 #ifndef ANDROID_STUB 120 #ifdef HAVE_CODESET 121 #include <langinfo.h> 122 #endif 123 #endif 124 125 const guint glib_major_version = GLIB_MAJOR_VERSION; 126 const guint glib_minor_version = GLIB_MINOR_VERSION; 127 const guint glib_micro_version = GLIB_MICRO_VERSION; 128 const guint glib_interface_age = GLIB_INTERFACE_AGE; 129 const guint glib_binary_age = GLIB_BINARY_AGE; 130 131 #ifdef G_PLATFORM_WIN32 132 133 static HMODULE glib_dll = NULL; 134 135 #ifdef DLL_EXPORT 136 137 BOOL WINAPI 138 DllMain (HINSTANCE hinstDLL, 139 DWORD fdwReason, 140 LPVOID lpvReserved) 141 { 142 if (fdwReason == DLL_PROCESS_ATTACH) 143 glib_dll = hinstDLL; 144 145 return TRUE; 146 } 147 148 #endif 149 150 gchar * 151 _glib_get_dll_directory (void) 152 { 153 gchar *retval; 154 gchar *p; 155 wchar_t wc_fn[MAX_PATH]; 156 157 #ifdef DLL_EXPORT 158 if (glib_dll == NULL) 159 return NULL; 160 #endif 161 162 /* This code is different from that in 163 * g_win32_get_package_installation_directory_of_module() in that 164 * here we return the actual folder where the GLib DLL is. We don't 165 * do the check for it being in a "bin" or "lib" subfolder and then 166 * returning the parent of that. 167 * 168 * In a statically built GLib, glib_dll will be NULL and we will 169 * thus look up the application's .exe file's location. 170 */ 171 if (!GetModuleFileNameW (glib_dll, wc_fn, MAX_PATH)) 172 return NULL; 173 174 retval = g_utf16_to_utf8 (wc_fn, -1, NULL, NULL, NULL); 175 176 p = strrchr (retval, G_DIR_SEPARATOR); 177 if (p == NULL) 178 { 179 /* Wtf? */ 180 return NULL; 181 } 182 *p = '\0'; 183 184 return retval; 185 } 186 187 #endif 188 189 /** 190 * glib_check_version: 191 * @required_major: the required major version. 192 * @required_minor: the required minor version. 193 * @required_micro: the required micro version. 194 * 195 * Checks that the GLib library in use is compatible with the 196 * given version. Generally you would pass in the constants 197 * #GLIB_MAJOR_VERSION, #GLIB_MINOR_VERSION, #GLIB_MICRO_VERSION 198 * as the three arguments to this function; that produces 199 * a check that the library in use is compatible with 200 * the version of GLib the application or module was compiled 201 * against. 202 * 203 * Compatibility is defined by two things: first the version 204 * of the running library is newer than the version 205 * @required_major.required_minor.@required_micro. Second 206 * the running library must be binary compatible with the 207 * version @required_major.required_minor.@required_micro 208 * (same major version.) 209 * 210 * Return value: %NULL if the GLib library is compatible with the 211 * given version, or a string describing the version mismatch. 212 * The returned string is owned by GLib and must not be modified 213 * or freed. 214 * 215 * Since: 2.6 216 **/ 217 const gchar * 218 glib_check_version (guint required_major, 219 guint required_minor, 220 guint required_micro) 221 { 222 gint glib_effective_micro = 100 * GLIB_MINOR_VERSION + GLIB_MICRO_VERSION; 223 gint required_effective_micro = 100 * required_minor + required_micro; 224 225 if (required_major > GLIB_MAJOR_VERSION) 226 return "GLib version too old (major mismatch)"; 227 if (required_major < GLIB_MAJOR_VERSION) 228 return "GLib version too new (major mismatch)"; 229 if (required_effective_micro < glib_effective_micro - GLIB_BINARY_AGE) 230 return "GLib version too new (micro mismatch)"; 231 if (required_effective_micro > glib_effective_micro) 232 return "GLib version too old (micro mismatch)"; 233 return NULL; 234 } 235 236 #if !defined (HAVE_MEMMOVE) && !defined (HAVE_WORKING_BCOPY) 237 /** 238 * g_memmove: 239 * @dest: the destination address to copy the bytes to. 240 * @src: the source address to copy the bytes from. 241 * @len: the number of bytes to copy. 242 * 243 * Copies a block of memory @len bytes long, from @src to @dest. 244 * The source and destination areas may overlap. 245 * 246 * In order to use this function, you must include 247 * <filename>string.h</filename> yourself, because this macro will 248 * typically simply resolve to memmove() and GLib does not include 249 * <filename>string.h</filename> for you. 250 */ 251 void 252 g_memmove (gpointer dest, 253 gconstpointer src, 254 gulong len) 255 { 256 gchar* destptr = dest; 257 const gchar* srcptr = src; 258 if (src + len < dest || dest + len < src) 259 { 260 bcopy (src, dest, len); 261 return; 262 } 263 else if (dest <= src) 264 { 265 while (len--) 266 *(destptr++) = *(srcptr++); 267 } 268 else 269 { 270 destptr += len; 271 srcptr += len; 272 while (len--) 273 *(--destptr) = *(--srcptr); 274 } 275 } 276 #endif /* !HAVE_MEMMOVE && !HAVE_WORKING_BCOPY */ 277 278 #ifdef G_OS_WIN32 279 #undef g_atexit 280 #endif 281 282 /** 283 * g_atexit: 284 * @func: the function to call on normal program termination. 285 * 286 * Specifies a function to be called at normal program termination. 287 * 288 * Since GLib 2.8.2, on Windows g_atexit() actually is a preprocessor 289 * macro that maps to a call to the atexit() function in the C 290 * library. This means that in case the code that calls g_atexit(), 291 * i.e. atexit(), is in a DLL, the function will be called when the 292 * DLL is detached from the program. This typically makes more sense 293 * than that the function is called when the GLib DLL is detached, 294 * which happened earlier when g_atexit() was a function in the GLib 295 * DLL. 296 * 297 * The behaviour of atexit() in the context of dynamically loaded 298 * modules is not formally specified and varies wildly. 299 * 300 * On POSIX systems, calling g_atexit() (or atexit()) in a dynamically 301 * loaded module which is unloaded before the program terminates might 302 * well cause a crash at program exit. 303 * 304 * Some POSIX systems implement atexit() like Windows, and have each 305 * dynamically loaded module maintain an own atexit chain that is 306 * called when the module is unloaded. 307 * 308 * On other POSIX systems, before a dynamically loaded module is 309 * unloaded, the registered atexit functions (if any) residing in that 310 * module are called, regardless where the code that registered them 311 * resided. This is presumably the most robust approach. 312 * 313 * As can be seen from the above, for portability it's best to avoid 314 * calling g_atexit() (or atexit()) except in the main executable of a 315 * program. 316 */ 317 void 318 g_atexit (GVoidFunc func) 319 { 320 gint result; 321 const gchar *error = NULL; 322 323 /* keep this in sync with glib.h */ 324 325 #ifdef G_NATIVE_ATEXIT 326 result = ATEXIT (func); 327 if (result) 328 error = g_strerror (errno); 329 #elif defined (HAVE_ATEXIT) 330 # ifdef NeXT /* @#%@! NeXTStep */ 331 result = !atexit ((void (*)(void)) func); 332 if (result) 333 error = g_strerror (errno); 334 # else 335 result = atexit ((void (*)(void)) func); 336 if (result) 337 error = g_strerror (errno); 338 # endif /* NeXT */ 339 #elif defined (HAVE_ON_EXIT) 340 result = on_exit ((void (*)(int, void *)) func, NULL); 341 if (result) 342 error = g_strerror (errno); 343 #else 344 result = 0; 345 error = "no implementation"; 346 #endif /* G_NATIVE_ATEXIT */ 347 348 if (error) 349 g_error ("Could not register atexit() function: %s", error); 350 } 351 352 /* Based on execvp() from GNU Libc. 353 * Some of this code is cut-and-pasted into gspawn.c 354 */ 355 356 static gchar* 357 my_strchrnul (const gchar *str, 358 gchar c) 359 { 360 gchar *p = (gchar*)str; 361 while (*p && (*p != c)) 362 ++p; 363 364 return p; 365 } 366 367 #ifdef G_OS_WIN32 368 369 static gchar *inner_find_program_in_path (const gchar *program); 370 371 gchar* 372 g_find_program_in_path (const gchar *program) 373 { 374 const gchar *last_dot = strrchr (program, '.'); 375 376 if (last_dot == NULL || 377 strchr (last_dot, '\\') != NULL || 378 strchr (last_dot, '/') != NULL) 379 { 380 const gint program_length = strlen (program); 381 gchar *pathext = g_build_path (";", 382 ".exe;.cmd;.bat;.com", 383 g_getenv ("PATHEXT"), 384 NULL); 385 gchar *p; 386 gchar *decorated_program; 387 gchar *retval; 388 389 p = pathext; 390 do 391 { 392 gchar *q = my_strchrnul (p, ';'); 393 394 decorated_program = g_malloc (program_length + (q-p) + 1); 395 memcpy (decorated_program, program, program_length); 396 memcpy (decorated_program+program_length, p, q-p); 397 decorated_program [program_length + (q-p)] = '\0'; 398 399 retval = inner_find_program_in_path (decorated_program); 400 g_free (decorated_program); 401 402 if (retval != NULL) 403 { 404 g_free (pathext); 405 return retval; 406 } 407 p = q; 408 } while (*p++ != '\0'); 409 g_free (pathext); 410 return NULL; 411 } 412 else 413 return inner_find_program_in_path (program); 414 } 415 416 #endif 417 418 /** 419 * g_find_program_in_path: 420 * @program: a program name in the GLib file name encoding 421 * 422 * Locates the first executable named @program in the user's path, in the 423 * same way that execvp() would locate it. Returns an allocated string 424 * with the absolute path name, or %NULL if the program is not found in 425 * the path. If @program is already an absolute path, returns a copy of 426 * @program if @program exists and is executable, and %NULL otherwise. 427 * 428 * On Windows, if @program does not have a file type suffix, tries 429 * with the suffixes .exe, .cmd, .bat and .com, and the suffixes in 430 * the <envar>PATHEXT</envar> environment variable. 431 * 432 * On Windows, it looks for the file in the same way as CreateProcess() 433 * would. This means first in the directory where the executing 434 * program was loaded from, then in the current directory, then in the 435 * Windows 32-bit system directory, then in the Windows directory, and 436 * finally in the directories in the <envar>PATH</envar> environment 437 * variable. If the program is found, the return value contains the 438 * full name including the type suffix. 439 * 440 * Return value: absolute path, or %NULL 441 **/ 442 #ifdef G_OS_WIN32 443 static gchar * 444 inner_find_program_in_path (const gchar *program) 445 #else 446 gchar* 447 g_find_program_in_path (const gchar *program) 448 #endif 449 { 450 const gchar *path, *p; 451 gchar *name, *freeme; 452 #ifdef G_OS_WIN32 453 const gchar *path_copy; 454 gchar *filename = NULL, *appdir = NULL; 455 gchar *sysdir = NULL, *windir = NULL; 456 int n; 457 wchar_t wfilename[MAXPATHLEN], wsysdir[MAXPATHLEN], 458 wwindir[MAXPATHLEN]; 459 #endif 460 gsize len; 461 gsize pathlen; 462 463 g_return_val_if_fail (program != NULL, NULL); 464 465 /* If it is an absolute path, or a relative path including subdirectories, 466 * don't look in PATH. 467 */ 468 if (g_path_is_absolute (program) 469 || strchr (program, G_DIR_SEPARATOR) != NULL 470 #ifdef G_OS_WIN32 471 || strchr (program, '/') != NULL 472 #endif 473 ) 474 { 475 if (g_file_test (program, G_FILE_TEST_IS_EXECUTABLE) && 476 !g_file_test (program, G_FILE_TEST_IS_DIR)) 477 return g_strdup (program); 478 else 479 return NULL; 480 } 481 482 path = g_getenv ("PATH"); 483 #if defined(G_OS_UNIX) || defined(G_OS_BEOS) 484 if (path == NULL) 485 { 486 /* There is no `PATH' in the environment. The default 487 * search path in GNU libc is the current directory followed by 488 * the path `confstr' returns for `_CS_PATH'. 489 */ 490 491 /* In GLib we put . last, for security, and don't use the 492 * unportable confstr(); UNIX98 does not actually specify 493 * what to search if PATH is unset. POSIX may, dunno. 494 */ 495 496 path = "/bin:/usr/bin:."; 497 } 498 #else 499 n = GetModuleFileNameW (NULL, wfilename, MAXPATHLEN); 500 if (n > 0 && n < MAXPATHLEN) 501 filename = g_utf16_to_utf8 (wfilename, -1, NULL, NULL, NULL); 502 503 n = GetSystemDirectoryW (wsysdir, MAXPATHLEN); 504 if (n > 0 && n < MAXPATHLEN) 505 sysdir = g_utf16_to_utf8 (wsysdir, -1, NULL, NULL, NULL); 506 507 n = GetWindowsDirectoryW (wwindir, MAXPATHLEN); 508 if (n > 0 && n < MAXPATHLEN) 509 windir = g_utf16_to_utf8 (wwindir, -1, NULL, NULL, NULL); 510 511 if (filename) 512 { 513 appdir = g_path_get_dirname (filename); 514 g_free (filename); 515 } 516 517 path = g_strdup (path); 518 519 if (windir) 520 { 521 const gchar *tem = path; 522 path = g_strconcat (windir, ";", path, NULL); 523 g_free ((gchar *) tem); 524 g_free (windir); 525 } 526 527 if (sysdir) 528 { 529 const gchar *tem = path; 530 path = g_strconcat (sysdir, ";", path, NULL); 531 g_free ((gchar *) tem); 532 g_free (sysdir); 533 } 534 535 { 536 const gchar *tem = path; 537 path = g_strconcat (".;", path, NULL); 538 g_free ((gchar *) tem); 539 } 540 541 if (appdir) 542 { 543 const gchar *tem = path; 544 path = g_strconcat (appdir, ";", path, NULL); 545 g_free ((gchar *) tem); 546 g_free (appdir); 547 } 548 549 path_copy = path; 550 #endif 551 552 len = strlen (program) + 1; 553 pathlen = strlen (path); 554 freeme = name = g_malloc (pathlen + len + 1); 555 556 /* Copy the file name at the top, including '\0' */ 557 memcpy (name + pathlen + 1, program, len); 558 name = name + pathlen; 559 /* And add the slash before the filename */ 560 *name = G_DIR_SEPARATOR; 561 562 p = path; 563 do 564 { 565 char *startp; 566 567 path = p; 568 p = my_strchrnul (path, G_SEARCHPATH_SEPARATOR); 569 570 if (p == path) 571 /* Two adjacent colons, or a colon at the beginning or the end 572 * of `PATH' means to search the current directory. 573 */ 574 startp = name + 1; 575 else 576 startp = memcpy (name - (p - path), path, p - path); 577 578 if (g_file_test (startp, G_FILE_TEST_IS_EXECUTABLE) && 579 !g_file_test (startp, G_FILE_TEST_IS_DIR)) 580 { 581 gchar *ret; 582 ret = g_strdup (startp); 583 g_free (freeme); 584 #ifdef G_OS_WIN32 585 g_free ((gchar *) path_copy); 586 #endif 587 return ret; 588 } 589 } 590 while (*p++ != '\0'); 591 592 g_free (freeme); 593 #ifdef G_OS_WIN32 594 g_free ((gchar *) path_copy); 595 #endif 596 597 return NULL; 598 } 599 600 static gboolean 601 debug_key_matches (const gchar *key, 602 const gchar *token, 603 guint length) 604 { 605 for (; length; length--, key++, token++) 606 { 607 char k = (*key == '_') ? '-' : tolower (*key ); 608 char t = (*token == '_') ? '-' : tolower (*token); 609 610 if (k != t) 611 return FALSE; 612 } 613 614 return *key == '\0'; 615 } 616 617 /** 618 * g_parse_debug_string: 619 * @string: a list of debug options separated by colons, spaces, or 620 * commas, or %NULL. 621 * @keys: pointer to an array of #GDebugKey which associate 622 * strings with bit flags. 623 * @nkeys: the number of #GDebugKey<!-- -->s in the array. 624 * 625 * Parses a string containing debugging options 626 * into a %guint containing bit flags. This is used 627 * within GDK and GTK+ to parse the debug options passed on the 628 * command line or through environment variables. 629 * 630 * If @string is equal to "all", all flags are set. If @string 631 * is equal to "help", all the available keys in @keys are printed 632 * out to standard error. 633 * 634 * Returns: the combined set of bit flags. 635 */ 636 guint 637 g_parse_debug_string (const gchar *string, 638 const GDebugKey *keys, 639 guint nkeys) 640 { 641 guint i; 642 guint result = 0; 643 644 if (string == NULL) 645 return 0; 646 647 /* this function is used by gmem.c/gslice.c initialization code, 648 * so introducing malloc dependencies here would require adaptions 649 * of those code portions. 650 */ 651 652 if (!g_ascii_strcasecmp (string, "all")) 653 { 654 for (i=0; i<nkeys; i++) 655 result |= keys[i].value; 656 } 657 else if (!g_ascii_strcasecmp (string, "help")) 658 { 659 /* using stdio directly for the reason stated above */ 660 fprintf (stderr, "Supported debug values: "); 661 for (i=0; i<nkeys; i++) 662 fprintf (stderr, " %s", keys[i].key); 663 fprintf (stderr, "\n"); 664 } 665 else 666 { 667 const gchar *p = string; 668 const gchar *q; 669 670 while (*p) 671 { 672 q = strpbrk (p, ":;, \t"); 673 if (!q) 674 q = p + strlen(p); 675 676 for (i = 0; i < nkeys; i++) 677 if (debug_key_matches (keys[i].key, p, q - p)) 678 result |= keys[i].value; 679 680 p = q; 681 if (*p) 682 p++; 683 } 684 } 685 686 return result; 687 } 688 689 /** 690 * g_basename: 691 * @file_name: the name of the file. 692 * 693 * Gets the name of the file without any leading directory components. 694 * It returns a pointer into the given file name string. 695 * 696 * Return value: the name of the file without any leading directory components. 697 * 698 * Deprecated:2.2: Use g_path_get_basename() instead, but notice that 699 * g_path_get_basename() allocates new memory for the returned string, unlike 700 * this function which returns a pointer into the argument. 701 **/ 702 G_CONST_RETURN gchar* 703 g_basename (const gchar *file_name) 704 { 705 register gchar *base; 706 707 g_return_val_if_fail (file_name != NULL, NULL); 708 709 base = strrchr (file_name, G_DIR_SEPARATOR); 710 711 #ifdef G_OS_WIN32 712 { 713 gchar *q = strrchr (file_name, '/'); 714 if (base == NULL || (q != NULL && q > base)) 715 base = q; 716 } 717 #endif 718 719 if (base) 720 return base + 1; 721 722 #ifdef G_OS_WIN32 723 if (g_ascii_isalpha (file_name[0]) && file_name[1] == ':') 724 return (gchar*) file_name + 2; 725 #endif /* G_OS_WIN32 */ 726 727 return (gchar*) file_name; 728 } 729 730 /** 731 * g_path_get_basename: 732 * @file_name: the name of the file. 733 * 734 * Gets the last component of the filename. If @file_name ends with a 735 * directory separator it gets the component before the last slash. If 736 * @file_name consists only of directory separators (and on Windows, 737 * possibly a drive letter), a single separator is returned. If 738 * @file_name is empty, it gets ".". 739 * 740 * Return value: a newly allocated string containing the last component of 741 * the filename. 742 */ 743 gchar* 744 g_path_get_basename (const gchar *file_name) 745 { 746 register gssize base; 747 register gssize last_nonslash; 748 gsize len; 749 gchar *retval; 750 751 g_return_val_if_fail (file_name != NULL, NULL); 752 753 if (file_name[0] == '\0') 754 /* empty string */ 755 return g_strdup ("."); 756 757 last_nonslash = strlen (file_name) - 1; 758 759 while (last_nonslash >= 0 && G_IS_DIR_SEPARATOR (file_name [last_nonslash])) 760 last_nonslash--; 761 762 if (last_nonslash == -1) 763 /* string only containing slashes */ 764 return g_strdup (G_DIR_SEPARATOR_S); 765 766 #ifdef G_OS_WIN32 767 if (last_nonslash == 1 && g_ascii_isalpha (file_name[0]) && file_name[1] == ':') 768 /* string only containing slashes and a drive */ 769 return g_strdup (G_DIR_SEPARATOR_S); 770 #endif /* G_OS_WIN32 */ 771 772 base = last_nonslash; 773 774 while (base >=0 && !G_IS_DIR_SEPARATOR (file_name [base])) 775 base--; 776 777 #ifdef G_OS_WIN32 778 if (base == -1 && g_ascii_isalpha (file_name[0]) && file_name[1] == ':') 779 base = 1; 780 #endif /* G_OS_WIN32 */ 781 782 len = last_nonslash - base; 783 retval = g_malloc (len + 1); 784 memcpy (retval, file_name + base + 1, len); 785 retval [len] = '\0'; 786 return retval; 787 } 788 789 /** 790 * g_path_is_absolute: 791 * @file_name: a file name. 792 * 793 * Returns %TRUE if the given @file_name is an absolute file name, 794 * i.e. it contains a full path from the root directory such as "/usr/local" 795 * on UNIX or "C:\windows" on Windows systems. 796 * 797 * Returns: %TRUE if @file_name is an absolute path. 798 */ 799 gboolean 800 g_path_is_absolute (const gchar *file_name) 801 { 802 g_return_val_if_fail (file_name != NULL, FALSE); 803 804 if (G_IS_DIR_SEPARATOR (file_name[0])) 805 return TRUE; 806 807 #ifdef G_OS_WIN32 808 /* Recognize drive letter on native Windows */ 809 if (g_ascii_isalpha (file_name[0]) && 810 file_name[1] == ':' && G_IS_DIR_SEPARATOR (file_name[2])) 811 return TRUE; 812 #endif /* G_OS_WIN32 */ 813 814 return FALSE; 815 } 816 817 /** 818 * g_path_skip_root: 819 * @file_name: a file name. 820 * 821 * Returns a pointer into @file_name after the root component, i.e. after 822 * the "/" in UNIX or "C:\" under Windows. If @file_name is not an absolute 823 * path it returns %NULL. 824 * 825 * Returns: a pointer into @file_name after the root component. 826 */ 827 G_CONST_RETURN gchar* 828 g_path_skip_root (const gchar *file_name) 829 { 830 g_return_val_if_fail (file_name != NULL, NULL); 831 832 #ifdef G_PLATFORM_WIN32 833 /* Skip \\server\share or //server/share */ 834 if (G_IS_DIR_SEPARATOR (file_name[0]) && 835 G_IS_DIR_SEPARATOR (file_name[1]) && 836 file_name[2] && 837 !G_IS_DIR_SEPARATOR (file_name[2])) 838 { 839 gchar *p; 840 841 p = strchr (file_name + 2, G_DIR_SEPARATOR); 842 #ifdef G_OS_WIN32 843 { 844 gchar *q = strchr (file_name + 2, '/'); 845 if (p == NULL || (q != NULL && q < p)) 846 p = q; 847 } 848 #endif 849 if (p && 850 p > file_name + 2 && 851 p[1]) 852 { 853 file_name = p + 1; 854 855 while (file_name[0] && !G_IS_DIR_SEPARATOR (file_name[0])) 856 file_name++; 857 858 /* Possibly skip a backslash after the share name */ 859 if (G_IS_DIR_SEPARATOR (file_name[0])) 860 file_name++; 861 862 return (gchar *)file_name; 863 } 864 } 865 #endif 866 867 /* Skip initial slashes */ 868 if (G_IS_DIR_SEPARATOR (file_name[0])) 869 { 870 while (G_IS_DIR_SEPARATOR (file_name[0])) 871 file_name++; 872 return (gchar *)file_name; 873 } 874 875 #ifdef G_OS_WIN32 876 /* Skip X:\ */ 877 if (g_ascii_isalpha (file_name[0]) && file_name[1] == ':' && G_IS_DIR_SEPARATOR (file_name[2])) 878 return (gchar *)file_name + 3; 879 #endif 880 881 return NULL; 882 } 883 884 /** 885 * g_path_get_dirname: 886 * @file_name: the name of the file. 887 * 888 * Gets the directory components of a file name. If the file name has no 889 * directory components "." is returned. The returned string should be 890 * freed when no longer needed. 891 * 892 * Returns: the directory components of the file. 893 */ 894 gchar* 895 g_path_get_dirname (const gchar *file_name) 896 { 897 register gchar *base; 898 register gsize len; 899 900 g_return_val_if_fail (file_name != NULL, NULL); 901 902 base = strrchr (file_name, G_DIR_SEPARATOR); 903 #ifdef G_OS_WIN32 904 { 905 gchar *q = strrchr (file_name, '/'); 906 if (base == NULL || (q != NULL && q > base)) 907 base = q; 908 } 909 #endif 910 if (!base) 911 { 912 #ifdef G_OS_WIN32 913 if (g_ascii_isalpha (file_name[0]) && file_name[1] == ':') 914 { 915 gchar drive_colon_dot[4]; 916 917 drive_colon_dot[0] = file_name[0]; 918 drive_colon_dot[1] = ':'; 919 drive_colon_dot[2] = '.'; 920 drive_colon_dot[3] = '\0'; 921 922 return g_strdup (drive_colon_dot); 923 } 924 #endif 925 return g_strdup ("."); 926 } 927 928 while (base > file_name && G_IS_DIR_SEPARATOR (*base)) 929 base--; 930 931 #ifdef G_OS_WIN32 932 /* base points to the char before the last slash. 933 * 934 * In case file_name is the root of a drive (X:\) or a child of the 935 * root of a drive (X:\foo), include the slash. 936 * 937 * In case file_name is the root share of an UNC path 938 * (\\server\share), add a slash, returning \\server\share\ . 939 * 940 * In case file_name is a direct child of a share in an UNC path 941 * (\\server\share\foo), include the slash after the share name, 942 * returning \\server\share\ . 943 */ 944 if (base == file_name + 1 && g_ascii_isalpha (file_name[0]) && file_name[1] == ':') 945 base++; 946 else if (G_IS_DIR_SEPARATOR (file_name[0]) && 947 G_IS_DIR_SEPARATOR (file_name[1]) && 948 file_name[2] && 949 !G_IS_DIR_SEPARATOR (file_name[2]) && 950 base >= file_name + 2) 951 { 952 const gchar *p = file_name + 2; 953 while (*p && !G_IS_DIR_SEPARATOR (*p)) 954 p++; 955 if (p == base + 1) 956 { 957 len = (guint) strlen (file_name) + 1; 958 base = g_new (gchar, len + 1); 959 strcpy (base, file_name); 960 base[len-1] = G_DIR_SEPARATOR; 961 base[len] = 0; 962 return base; 963 } 964 if (G_IS_DIR_SEPARATOR (*p)) 965 { 966 p++; 967 while (*p && !G_IS_DIR_SEPARATOR (*p)) 968 p++; 969 if (p == base + 1) 970 base++; 971 } 972 } 973 #endif 974 975 len = (guint) 1 + base - file_name; 976 977 base = g_new (gchar, len + 1); 978 g_memmove (base, file_name, len); 979 base[len] = 0; 980 981 return base; 982 } 983 984 /** 985 * g_get_current_dir: 986 * 987 * Gets the current directory. 988 * The returned string should be freed when no longer needed. The encoding 989 * of the returned string is system defined. On Windows, it is always UTF-8. 990 * 991 * Returns: the current directory. 992 */ 993 gchar* 994 g_get_current_dir (void) 995 { 996 #ifdef G_OS_WIN32 997 998 gchar *dir = NULL; 999 wchar_t dummy[2], *wdir; 1000 int len; 1001 1002 len = GetCurrentDirectoryW (2, dummy); 1003 wdir = g_new (wchar_t, len); 1004 1005 if (GetCurrentDirectoryW (len, wdir) == len - 1) 1006 dir = g_utf16_to_utf8 (wdir, -1, NULL, NULL, NULL); 1007 1008 g_free (wdir); 1009 1010 if (dir == NULL) 1011 dir = g_strdup ("\\"); 1012 1013 return dir; 1014 1015 #else 1016 1017 gchar *buffer = NULL; 1018 gchar *dir = NULL; 1019 static gulong max_len = 0; 1020 1021 if (max_len == 0) 1022 max_len = (G_PATH_LENGTH == -1) ? 2048 : G_PATH_LENGTH; 1023 1024 /* We don't use getcwd(3) on SUNOS, because, it does a popen("pwd") 1025 * and, if that wasn't bad enough, hangs in doing so. 1026 */ 1027 #if (defined (sun) && !defined (__SVR4)) || !defined(HAVE_GETCWD) 1028 buffer = g_new (gchar, max_len + 1); 1029 *buffer = 0; 1030 dir = getwd (buffer); 1031 #else /* !sun || !HAVE_GETCWD */ 1032 while (max_len < G_MAXULONG / 2) 1033 { 1034 g_free (buffer); 1035 buffer = g_new (gchar, max_len + 1); 1036 *buffer = 0; 1037 dir = getcwd (buffer, max_len); 1038 1039 if (dir || errno != ERANGE) 1040 break; 1041 1042 max_len *= 2; 1043 } 1044 #endif /* !sun || !HAVE_GETCWD */ 1045 1046 if (!dir || !*buffer) 1047 { 1048 /* hm, should we g_error() out here? 1049 * this can happen if e.g. "./" has mode \0000 1050 */ 1051 buffer[0] = G_DIR_SEPARATOR; 1052 buffer[1] = 0; 1053 } 1054 1055 dir = g_strdup (buffer); 1056 g_free (buffer); 1057 1058 return dir; 1059 #endif /* !Win32 */ 1060 } 1061 1062 /** 1063 * g_getenv: 1064 * @variable: the environment variable to get, in the GLib file name encoding. 1065 * 1066 * Returns the value of an environment variable. The name and value 1067 * are in the GLib file name encoding. On UNIX, this means the actual 1068 * bytes which might or might not be in some consistent character set 1069 * and encoding. On Windows, it is in UTF-8. On Windows, in case the 1070 * environment variable's value contains references to other 1071 * environment variables, they are expanded. 1072 * 1073 * Return value: the value of the environment variable, or %NULL if 1074 * the environment variable is not found. The returned string may be 1075 * overwritten by the next call to g_getenv(), g_setenv() or 1076 * g_unsetenv(). 1077 **/ 1078 G_CONST_RETURN gchar* 1079 g_getenv (const gchar *variable) 1080 { 1081 #ifndef G_OS_WIN32 1082 1083 g_return_val_if_fail (variable != NULL, NULL); 1084 1085 return getenv (variable); 1086 1087 #else /* G_OS_WIN32 */ 1088 1089 GQuark quark; 1090 gchar *value; 1091 wchar_t dummy[2], *wname, *wvalue; 1092 int len; 1093 1094 g_return_val_if_fail (variable != NULL, NULL); 1095 g_return_val_if_fail (g_utf8_validate (variable, -1, NULL), NULL); 1096 1097 /* On Windows NT, it is relatively typical that environment 1098 * variables contain references to other environment variables. If 1099 * so, use ExpandEnvironmentStrings(). (In an ideal world, such 1100 * environment variables would be stored in the Registry as 1101 * REG_EXPAND_SZ type values, and would then get automatically 1102 * expanded before a program sees them. But there is broken software 1103 * that stores environment variables as REG_SZ values even if they 1104 * contain references to other environment variables.) 1105 */ 1106 1107 wname = g_utf8_to_utf16 (variable, -1, NULL, NULL, NULL); 1108 1109 len = GetEnvironmentVariableW (wname, dummy, 2); 1110 1111 if (len == 0) 1112 { 1113 g_free (wname); 1114 return NULL; 1115 } 1116 else if (len == 1) 1117 len = 2; 1118 1119 wvalue = g_new (wchar_t, len); 1120 1121 if (GetEnvironmentVariableW (wname, wvalue, len) != len - 1) 1122 { 1123 g_free (wname); 1124 g_free (wvalue); 1125 return NULL; 1126 } 1127 1128 if (wcschr (wvalue, L'%') != NULL) 1129 { 1130 wchar_t *tem = wvalue; 1131 1132 len = ExpandEnvironmentStringsW (wvalue, dummy, 2); 1133 1134 if (len > 0) 1135 { 1136 wvalue = g_new (wchar_t, len); 1137 1138 if (ExpandEnvironmentStringsW (tem, wvalue, len) != len) 1139 { 1140 g_free (wvalue); 1141 wvalue = tem; 1142 } 1143 else 1144 g_free (tem); 1145 } 1146 } 1147 1148 value = g_utf16_to_utf8 (wvalue, -1, NULL, NULL, NULL); 1149 1150 g_free (wname); 1151 g_free (wvalue); 1152 1153 quark = g_quark_from_string (value); 1154 g_free (value); 1155 1156 return g_quark_to_string (quark); 1157 1158 #endif /* G_OS_WIN32 */ 1159 } 1160 1161 /* _g_getenv_nomalloc 1162 * this function does a getenv() without doing any kind of allocation 1163 * through glib. it's suitable for chars <= 127 only (both, for the 1164 * variable name and the contents) and for contents < 1024 chars in 1165 * length. also, it aliases "" to a NULL return value. 1166 **/ 1167 const gchar* 1168 _g_getenv_nomalloc (const gchar *variable, 1169 gchar buffer[1024]) 1170 { 1171 const gchar *retval = getenv (variable); 1172 if (retval && retval[0]) 1173 { 1174 gint l = strlen (retval); 1175 if (l < 1024) 1176 { 1177 strncpy (buffer, retval, l); 1178 buffer[l] = 0; 1179 return buffer; 1180 } 1181 } 1182 return NULL; 1183 } 1184 1185 /** 1186 * g_setenv: 1187 * @variable: the environment variable to set, must not contain '='. 1188 * @value: the value for to set the variable to. 1189 * @overwrite: whether to change the variable if it already exists. 1190 * 1191 * Sets an environment variable. Both the variable's name and value 1192 * should be in the GLib file name encoding. On UNIX, this means that 1193 * they can be any sequence of bytes. On Windows, they should be in 1194 * UTF-8. 1195 * 1196 * Note that on some systems, when variables are overwritten, the memory 1197 * used for the previous variables and its value isn't reclaimed. 1198 * 1199 * Returns: %FALSE if the environment variable couldn't be set. 1200 * 1201 * Since: 2.4 1202 */ 1203 gboolean 1204 g_setenv (const gchar *variable, 1205 const gchar *value, 1206 gboolean overwrite) 1207 { 1208 #ifndef G_OS_WIN32 1209 1210 gint result; 1211 #ifndef HAVE_SETENV 1212 gchar *string; 1213 #endif 1214 1215 g_return_val_if_fail (variable != NULL, FALSE); 1216 g_return_val_if_fail (strchr (variable, '=') == NULL, FALSE); 1217 1218 #ifdef HAVE_SETENV 1219 result = setenv (variable, value, overwrite); 1220 #else 1221 if (!overwrite && getenv (variable) != NULL) 1222 return TRUE; 1223 1224 /* This results in a leak when you overwrite existing 1225 * settings. It would be fairly easy to fix this by keeping 1226 * our own parallel array or hash table. 1227 */ 1228 string = g_strconcat (variable, "=", value, NULL); 1229 result = putenv (string); 1230 #endif 1231 return result == 0; 1232 1233 #else /* G_OS_WIN32 */ 1234 1235 gboolean retval; 1236 wchar_t *wname, *wvalue, *wassignment; 1237 gchar *tem; 1238 1239 g_return_val_if_fail (variable != NULL, FALSE); 1240 g_return_val_if_fail (strchr (variable, '=') == NULL, FALSE); 1241 g_return_val_if_fail (g_utf8_validate (variable, -1, NULL), FALSE); 1242 g_return_val_if_fail (g_utf8_validate (value, -1, NULL), FALSE); 1243 1244 if (!overwrite && g_getenv (variable) != NULL) 1245 return TRUE; 1246 1247 /* We want to (if possible) set both the environment variable copy 1248 * kept by the C runtime and the one kept by the system. 1249 * 1250 * We can't use only the C runtime's putenv or _wputenv() as that 1251 * won't work for arbitrary Unicode strings in a "non-Unicode" app 1252 * (with main() and not wmain()). In a "main()" app the C runtime 1253 * initializes the C runtime's environment table by converting the 1254 * real (wide char) environment variables to system codepage, thus 1255 * breaking those that aren't representable in the system codepage. 1256 * 1257 * As the C runtime's putenv() will also set the system copy, we do 1258 * the putenv() first, then call SetEnvironmentValueW ourselves. 1259 */ 1260 1261 wname = g_utf8_to_utf16 (variable, -1, NULL, NULL, NULL); 1262 wvalue = g_utf8_to_utf16 (value, -1, NULL, NULL, NULL); 1263 tem = g_strconcat (variable, "=", value, NULL); 1264 wassignment = g_utf8_to_utf16 (tem, -1, NULL, NULL, NULL); 1265 1266 g_free (tem); 1267 _wputenv (wassignment); 1268 g_free (wassignment); 1269 1270 retval = (SetEnvironmentVariableW (wname, wvalue) != 0); 1271 1272 g_free (wname); 1273 g_free (wvalue); 1274 1275 return retval; 1276 1277 #endif /* G_OS_WIN32 */ 1278 } 1279 1280 #ifdef HAVE__NSGETENVIRON 1281 #define environ (*_NSGetEnviron()) 1282 #elif !defined(G_OS_WIN32) 1283 1284 /* According to the Single Unix Specification, environ is not in 1285 * any system header, although unistd.h often declares it. 1286 */ 1287 extern char **environ; 1288 #endif 1289 1290 /** 1291 * g_unsetenv: 1292 * @variable: the environment variable to remove, must not contain '='. 1293 * 1294 * Removes an environment variable from the environment. 1295 * 1296 * Note that on some systems, when variables are overwritten, the memory 1297 * used for the previous variables and its value isn't reclaimed. 1298 * Furthermore, this function can't be guaranteed to operate in a 1299 * threadsafe way. 1300 * 1301 * Since: 2.4 1302 **/ 1303 void 1304 g_unsetenv (const gchar *variable) 1305 { 1306 #ifndef G_OS_WIN32 1307 1308 #ifdef HAVE_UNSETENV 1309 g_return_if_fail (variable != NULL); 1310 g_return_if_fail (strchr (variable, '=') == NULL); 1311 1312 unsetenv (variable); 1313 #else /* !HAVE_UNSETENV */ 1314 int len; 1315 gchar **e, **f; 1316 1317 g_return_if_fail (variable != NULL); 1318 g_return_if_fail (strchr (variable, '=') == NULL); 1319 1320 len = strlen (variable); 1321 1322 /* Mess directly with the environ array. 1323 * This seems to be the only portable way to do this. 1324 * 1325 * Note that we remove *all* environment entries for 1326 * the variable name, not just the first. 1327 */ 1328 e = f = environ; 1329 while (*e != NULL) 1330 { 1331 if (strncmp (*e, variable, len) != 0 || (*e)[len] != '=') 1332 { 1333 *f = *e; 1334 f++; 1335 } 1336 e++; 1337 } 1338 *f = NULL; 1339 #endif /* !HAVE_UNSETENV */ 1340 1341 #else /* G_OS_WIN32 */ 1342 1343 wchar_t *wname, *wassignment; 1344 gchar *tem; 1345 1346 g_return_if_fail (variable != NULL); 1347 g_return_if_fail (strchr (variable, '=') == NULL); 1348 g_return_if_fail (g_utf8_validate (variable, -1, NULL)); 1349 1350 wname = g_utf8_to_utf16 (variable, -1, NULL, NULL, NULL); 1351 tem = g_strconcat (variable, "=", NULL); 1352 wassignment = g_utf8_to_utf16 (tem, -1, NULL, NULL, NULL); 1353 1354 g_free (tem); 1355 _wputenv (wassignment); 1356 g_free (wassignment); 1357 1358 SetEnvironmentVariableW (wname, NULL); 1359 1360 g_free (wname); 1361 1362 #endif /* G_OS_WIN32 */ 1363 } 1364 1365 /** 1366 * g_listenv: 1367 * 1368 * Gets the names of all variables set in the environment. 1369 * 1370 * Returns: a %NULL-terminated list of strings which must be freed 1371 * with g_strfreev(). 1372 * 1373 * Programs that want to be portable to Windows should typically use 1374 * this function and g_getenv() instead of using the environ array 1375 * from the C library directly. On Windows, the strings in the environ 1376 * array are in system codepage encoding, while in most of the typical 1377 * use cases for environment variables in GLib-using programs you want 1378 * the UTF-8 encoding that this function and g_getenv() provide. 1379 * 1380 * Since: 2.8 1381 */ 1382 gchar ** 1383 g_listenv (void) 1384 { 1385 #ifndef G_OS_WIN32 1386 gchar **result, *eq; 1387 gint len, i, j; 1388 1389 len = g_strv_length (environ); 1390 result = g_new0 (gchar *, len + 1); 1391 1392 j = 0; 1393 for (i = 0; i < len; i++) 1394 { 1395 eq = strchr (environ[i], '='); 1396 if (eq) 1397 result[j++] = g_strndup (environ[i], eq - environ[i]); 1398 } 1399 1400 result[j] = NULL; 1401 1402 return result; 1403 #else 1404 gchar **result, *eq; 1405 gint len = 0, j; 1406 wchar_t *p, *q; 1407 1408 p = (wchar_t *) GetEnvironmentStringsW (); 1409 if (p != NULL) 1410 { 1411 q = p; 1412 while (*q) 1413 { 1414 q += wcslen (q) + 1; 1415 len++; 1416 } 1417 } 1418 result = g_new0 (gchar *, len + 1); 1419 1420 j = 0; 1421 q = p; 1422 while (*q) 1423 { 1424 result[j] = g_utf16_to_utf8 (q, -1, NULL, NULL, NULL); 1425 if (result[j] != NULL) 1426 { 1427 eq = strchr (result[j], '='); 1428 if (eq && eq > result[j]) 1429 { 1430 *eq = '\0'; 1431 j++; 1432 } 1433 else 1434 g_free (result[j]); 1435 } 1436 q += wcslen (q) + 1; 1437 } 1438 result[j] = NULL; 1439 FreeEnvironmentStringsW (p); 1440 1441 return result; 1442 #endif 1443 } 1444 1445 G_LOCK_DEFINE_STATIC (g_utils_global); 1446 1447 static gchar *g_tmp_dir = NULL; 1448 static gchar *g_user_name = NULL; 1449 static gchar *g_real_name = NULL; 1450 static gchar *g_home_dir = NULL; 1451 static gchar *g_host_name = NULL; 1452 1453 #ifdef G_OS_WIN32 1454 /* System codepage versions of the above, kept at file level so that they, 1455 * too, are produced only once. 1456 */ 1457 static gchar *g_tmp_dir_cp = NULL; 1458 static gchar *g_user_name_cp = NULL; 1459 static gchar *g_real_name_cp = NULL; 1460 static gchar *g_home_dir_cp = NULL; 1461 #endif 1462 1463 static gchar *g_user_data_dir = NULL; 1464 static gchar **g_system_data_dirs = NULL; 1465 static gchar *g_user_cache_dir = NULL; 1466 static gchar *g_user_config_dir = NULL; 1467 static gchar **g_system_config_dirs = NULL; 1468 1469 static gchar **g_user_special_dirs = NULL; 1470 1471 /* fifteen minutes of fame for everybody */ 1472 #define G_USER_DIRS_EXPIRE 15 * 60 1473 1474 #ifdef G_OS_WIN32 1475 1476 static gchar * 1477 get_special_folder (int csidl) 1478 { 1479 wchar_t path[MAX_PATH+1]; 1480 HRESULT hr; 1481 LPITEMIDLIST pidl = NULL; 1482 BOOL b; 1483 gchar *retval = NULL; 1484 1485 hr = SHGetSpecialFolderLocation (NULL, csidl, &pidl); 1486 if (hr == S_OK) 1487 { 1488 b = SHGetPathFromIDListW (pidl, path); 1489 if (b) 1490 retval = g_utf16_to_utf8 (path, -1, NULL, NULL, NULL); 1491 CoTaskMemFree (pidl); 1492 } 1493 return retval; 1494 } 1495 1496 static char * 1497 get_windows_directory_root (void) 1498 { 1499 wchar_t wwindowsdir[MAX_PATH]; 1500 1501 if (GetWindowsDirectoryW (wwindowsdir, G_N_ELEMENTS (wwindowsdir))) 1502 { 1503 /* Usually X:\Windows, but in terminal server environments 1504 * might be an UNC path, AFAIK. 1505 */ 1506 char *windowsdir = g_utf16_to_utf8 (wwindowsdir, -1, NULL, NULL, NULL); 1507 char *p; 1508 1509 if (windowsdir == NULL) 1510 return g_strdup ("C:\\"); 1511 1512 p = (char *) g_path_skip_root (windowsdir); 1513 if (G_IS_DIR_SEPARATOR (p[-1]) && p[-2] != ':') 1514 p--; 1515 *p = '\0'; 1516 return windowsdir; 1517 } 1518 else 1519 return g_strdup ("C:\\"); 1520 } 1521 1522 #endif 1523 1524 /* HOLDS: g_utils_global_lock */ 1525 static void 1526 g_get_any_init_do (void) 1527 { 1528 gchar hostname[100]; 1529 1530 g_tmp_dir = g_strdup (g_getenv ("TMPDIR")); 1531 if (!g_tmp_dir) 1532 g_tmp_dir = g_strdup (g_getenv ("TMP")); 1533 if (!g_tmp_dir) 1534 g_tmp_dir = g_strdup (g_getenv ("TEMP")); 1535 1536 #ifdef G_OS_WIN32 1537 if (!g_tmp_dir) 1538 g_tmp_dir = get_windows_directory_root (); 1539 #else 1540 #ifdef P_tmpdir 1541 if (!g_tmp_dir) 1542 { 1543 gsize k; 1544 g_tmp_dir = g_strdup (P_tmpdir); 1545 k = strlen (g_tmp_dir); 1546 if (k > 1 && G_IS_DIR_SEPARATOR (g_tmp_dir[k - 1])) 1547 g_tmp_dir[k - 1] = '\0'; 1548 } 1549 #endif 1550 1551 if (!g_tmp_dir) 1552 { 1553 g_tmp_dir = g_strdup ("/tmp"); 1554 } 1555 #endif /* !G_OS_WIN32 */ 1556 1557 #ifdef G_OS_WIN32 1558 /* We check $HOME first for Win32, though it is a last resort for Unix 1559 * where we prefer the results of getpwuid(). 1560 */ 1561 g_home_dir = g_strdup (g_getenv ("HOME")); 1562 1563 /* Only believe HOME if it is an absolute path and exists */ 1564 if (g_home_dir) 1565 { 1566 if (!(g_path_is_absolute (g_home_dir) && 1567 g_file_test (g_home_dir, G_FILE_TEST_IS_DIR))) 1568 { 1569 g_free (g_home_dir); 1570 g_home_dir = NULL; 1571 } 1572 } 1573 1574 /* In case HOME is Unix-style (it happens), convert it to 1575 * Windows style. 1576 */ 1577 if (g_home_dir) 1578 { 1579 gchar *p; 1580 while ((p = strchr (g_home_dir, '/')) != NULL) 1581 *p = '\\'; 1582 } 1583 1584 if (!g_home_dir) 1585 { 1586 /* USERPROFILE is probably the closest equivalent to $HOME? */ 1587 if (g_getenv ("USERPROFILE") != NULL) 1588 g_home_dir = g_strdup (g_getenv ("USERPROFILE")); 1589 } 1590 1591 if (!g_home_dir) 1592 g_home_dir = get_special_folder (CSIDL_PROFILE); 1593 1594 if (!g_home_dir) 1595 g_home_dir = get_windows_directory_root (); 1596 #endif /* G_OS_WIN32 */ 1597 1598 #ifdef HAVE_PWD_H 1599 { 1600 struct passwd *pw = NULL; 1601 gpointer buffer = NULL; 1602 gint error; 1603 gchar *logname; 1604 1605 # if defined (HAVE_POSIX_GETPWUID_R) || defined (HAVE_NONPOSIX_GETPWUID_R) 1606 struct passwd pwd; 1607 # ifdef _SC_GETPW_R_SIZE_MAX 1608 /* This reurns the maximum length */ 1609 glong bufsize = sysconf (_SC_GETPW_R_SIZE_MAX); 1610 1611 if (bufsize < 0) 1612 bufsize = 64; 1613 # else /* _SC_GETPW_R_SIZE_MAX */ 1614 glong bufsize = 64; 1615 # endif /* _SC_GETPW_R_SIZE_MAX */ 1616 1617 logname = (gchar *) g_getenv ("LOGNAME"); 1618 1619 do 1620 { 1621 g_free (buffer); 1622 /* we allocate 6 extra bytes to work around a bug in 1623 * Mac OS < 10.3. See #156446 1624 */ 1625 buffer = g_malloc (bufsize + 6); 1626 errno = 0; 1627 1628 # ifdef HAVE_POSIX_GETPWUID_R 1629 if (logname) { 1630 error = getpwnam_r (logname, &pwd, buffer, bufsize, &pw); 1631 if (!pw || (pw->pw_uid != getuid ())) { 1632 /* LOGNAME is lying, fall back to looking up the uid */ 1633 error = getpwuid_r (getuid (), &pwd, buffer, bufsize, &pw); 1634 } 1635 } else { 1636 error = getpwuid_r (getuid (), &pwd, buffer, bufsize, &pw); 1637 } 1638 error = error < 0 ? errno : error; 1639 # else /* HAVE_NONPOSIX_GETPWUID_R */ 1640 /* HPUX 11 falls into the HAVE_POSIX_GETPWUID_R case */ 1641 # if defined(_AIX) || defined(__hpux) 1642 error = getpwuid_r (getuid (), &pwd, buffer, bufsize); 1643 pw = error == 0 ? &pwd : NULL; 1644 # else /* !_AIX */ 1645 if (logname) { 1646 pw = getpwnam_r (logname, &pwd, buffer, bufsize); 1647 if (!pw || (pw->pw_uid != getuid ())) { 1648 /* LOGNAME is lying, fall back to looking up the uid */ 1649 pw = getpwuid_r (getuid (), &pwd, buffer, bufsize); 1650 } 1651 } else { 1652 pw = getpwuid_r (getuid (), &pwd, buffer, bufsize); 1653 } 1654 error = pw ? 0 : errno; 1655 # endif /* !_AIX */ 1656 # endif /* HAVE_NONPOSIX_GETPWUID_R */ 1657 1658 if (!pw) 1659 { 1660 /* we bail out prematurely if the user id can't be found 1661 * (should be pretty rare case actually), or if the buffer 1662 * should be sufficiently big and lookups are still not 1663 * successfull. 1664 */ 1665 if (error == 0 || error == ENOENT) 1666 { 1667 g_warning ("getpwuid_r(): failed due to unknown user id (%lu)", 1668 (gulong) getuid ()); 1669 break; 1670 } 1671 if (bufsize > 32 * 1024) 1672 { 1673 g_warning ("getpwuid_r(): failed due to: %s.", 1674 g_strerror (error)); 1675 break; 1676 } 1677 1678 bufsize *= 2; 1679 } 1680 } 1681 while (!pw); 1682 # endif /* HAVE_POSIX_GETPWUID_R || HAVE_NONPOSIX_GETPWUID_R */ 1683 1684 #ifndef ANDROID_STUB 1685 if (!pw) 1686 { 1687 setpwent (); 1688 pw = getpwuid (getuid ()); 1689 endpwent (); 1690 } 1691 #endif 1692 if (pw) 1693 { 1694 g_user_name = g_strdup (pw->pw_name); 1695 1696 #ifndef ANDROID_STUB 1697 if (pw->pw_gecos && *pw->pw_gecos != '\0') 1698 { 1699 gchar **gecos_fields; 1700 gchar **name_parts; 1701 1702 /* split the gecos field and substitute '&' */ 1703 gecos_fields = g_strsplit (pw->pw_gecos, ",", 0); 1704 name_parts = g_strsplit (gecos_fields[0], "&", 0); 1705 pw->pw_name[0] = g_ascii_toupper (pw->pw_name[0]); 1706 g_real_name = g_strjoinv (pw->pw_name, name_parts); 1707 g_strfreev (gecos_fields); 1708 g_strfreev (name_parts); 1709 } 1710 #endif 1711 if (!g_home_dir) 1712 g_home_dir = g_strdup (pw->pw_dir); 1713 } 1714 g_free (buffer); 1715 } 1716 1717 #else /* !HAVE_PWD_H */ 1718 1719 #ifdef G_OS_WIN32 1720 { 1721 guint len = UNLEN+1; 1722 wchar_t buffer[UNLEN+1]; 1723 1724 if (GetUserNameW (buffer, (LPDWORD) &len)) 1725 { 1726 g_user_name = g_utf16_to_utf8 (buffer, -1, NULL, NULL, NULL); 1727 g_real_name = g_strdup (g_user_name); 1728 } 1729 } 1730 #endif /* G_OS_WIN32 */ 1731 1732 #endif /* !HAVE_PWD_H */ 1733 1734 #ifndef G_OS_WIN32 1735 if (!g_home_dir) 1736 g_home_dir = g_strdup (g_getenv ("HOME")); 1737 #endif 1738 1739 #ifdef __EMX__ 1740 /* change '\\' in %HOME% to '/' */ 1741 g_strdelimit (g_home_dir, "\\",'/'); 1742 #endif 1743 if (!g_user_name) 1744 g_user_name = g_strdup ("somebody"); 1745 if (!g_real_name) 1746 g_real_name = g_strdup ("Unknown"); 1747 1748 { 1749 #ifndef G_OS_WIN32 1750 gboolean hostname_fail = (gethostname (hostname, sizeof (hostname)) == -1); 1751 #else 1752 DWORD size = sizeof (hostname); 1753 gboolean hostname_fail = (!GetComputerName (hostname, &size)); 1754 #endif 1755 g_host_name = g_strdup (hostname_fail ? "localhost" : hostname); 1756 } 1757 1758 #ifdef G_OS_WIN32 1759 g_tmp_dir_cp = g_locale_from_utf8 (g_tmp_dir, -1, NULL, NULL, NULL); 1760 g_user_name_cp = g_locale_from_utf8 (g_user_name, -1, NULL, NULL, NULL); 1761 g_real_name_cp = g_locale_from_utf8 (g_real_name, -1, NULL, NULL, NULL); 1762 1763 if (!g_tmp_dir_cp) 1764 g_tmp_dir_cp = g_strdup ("\\"); 1765 if (!g_user_name_cp) 1766 g_user_name_cp = g_strdup ("somebody"); 1767 if (!g_real_name_cp) 1768 g_real_name_cp = g_strdup ("Unknown"); 1769 1770 /* home_dir might be NULL, unlike tmp_dir, user_name and 1771 * real_name. 1772 */ 1773 if (g_home_dir) 1774 g_home_dir_cp = g_locale_from_utf8 (g_home_dir, -1, NULL, NULL, NULL); 1775 else 1776 g_home_dir_cp = NULL; 1777 #endif /* G_OS_WIN32 */ 1778 } 1779 1780 static inline void 1781 g_get_any_init (void) 1782 { 1783 if (!g_tmp_dir) 1784 g_get_any_init_do (); 1785 } 1786 1787 static inline void 1788 g_get_any_init_locked (void) 1789 { 1790 G_LOCK (g_utils_global); 1791 g_get_any_init (); 1792 G_UNLOCK (g_utils_global); 1793 } 1794 1795 1796 /** 1797 * g_get_user_name: 1798 * 1799 * Gets the user name of the current user. The encoding of the returned 1800 * string is system-defined. On UNIX, it might be the preferred file name 1801 * encoding, or something else, and there is no guarantee that it is even 1802 * consistent on a machine. On Windows, it is always UTF-8. 1803 * 1804 * Returns: the user name of the current user. 1805 */ 1806 G_CONST_RETURN gchar* 1807 g_get_user_name (void) 1808 { 1809 g_get_any_init_locked (); 1810 return g_user_name; 1811 } 1812 1813 /** 1814 * g_get_real_name: 1815 * 1816 * Gets the real name of the user. This usually comes from the user's entry 1817 * in the <filename>passwd</filename> file. The encoding of the returned 1818 * string is system-defined. (On Windows, it is, however, always UTF-8.) 1819 * If the real user name cannot be determined, the string "Unknown" is 1820 * returned. 1821 * 1822 * Returns: the user's real name. 1823 */ 1824 G_CONST_RETURN gchar* 1825 g_get_real_name (void) 1826 { 1827 g_get_any_init_locked (); 1828 return g_real_name; 1829 } 1830 1831 /** 1832 * g_get_home_dir: 1833 * 1834 * Gets the current user's home directory as defined in the 1835 * password database. 1836 * 1837 * Note that in contrast to traditional UNIX tools, this function 1838 * prefers <filename>passwd</filename> entries over the <envar>HOME</envar> 1839 * environment variable. 1840 * 1841 * One of the reasons for this decision is that applications in many 1842 * cases need special handling to deal with the case where 1843 * <envar>HOME</envar> is 1844 * <simplelist> 1845 * <member>Not owned by the user</member> 1846 * <member>Not writeable</member> 1847 * <member>Not even readable</member> 1848 * </simplelist> 1849 * Since applications are in general <emphasis>not</emphasis> written 1850 * to deal with these situations it was considered better to make 1851 * g_get_home_dir() not pay attention to <envar>HOME</envar> and to 1852 * return the real home directory for the user. If applications 1853 * want to pay attention to <envar>HOME</envar>, they can do: 1854 * |[ 1855 * const char *homedir = g_getenv ("HOME"); 1856 * if (!homedir) 1857 * homedir = g_get_home_dir (<!-- -->); 1858 * ]| 1859 * 1860 * Returns: the current user's home directory 1861 */ 1862 G_CONST_RETURN gchar* 1863 g_get_home_dir (void) 1864 { 1865 g_get_any_init_locked (); 1866 return g_home_dir; 1867 } 1868 1869 /** 1870 * g_get_tmp_dir: 1871 * 1872 * Gets the directory to use for temporary files. This is found from 1873 * inspecting the environment variables <envar>TMPDIR</envar>, 1874 * <envar>TMP</envar>, and <envar>TEMP</envar> in that order. If none 1875 * of those are defined "/tmp" is returned on UNIX and "C:\" on Windows. 1876 * The encoding of the returned string is system-defined. On Windows, 1877 * it is always UTF-8. The return value is never %NULL. 1878 * 1879 * Returns: the directory to use for temporary files. 1880 */ 1881 G_CONST_RETURN gchar* 1882 g_get_tmp_dir (void) 1883 { 1884 g_get_any_init_locked (); 1885 return g_tmp_dir; 1886 } 1887 1888 /** 1889 * g_get_host_name: 1890 * 1891 * Return a name for the machine. 1892 * 1893 * The returned name is not necessarily a fully-qualified domain name, 1894 * or even present in DNS or some other name service at all. It need 1895 * not even be unique on your local network or site, but usually it 1896 * is. Callers should not rely on the return value having any specific 1897 * properties like uniqueness for security purposes. Even if the name 1898 * of the machine is changed while an application is running, the 1899 * return value from this function does not change. The returned 1900 * string is owned by GLib and should not be modified or freed. If no 1901 * name can be determined, a default fixed string "localhost" is 1902 * returned. 1903 * 1904 * Returns: the host name of the machine. 1905 * 1906 * Since: 2.8 1907 */ 1908 const gchar * 1909 g_get_host_name (void) 1910 { 1911 g_get_any_init_locked (); 1912 return g_host_name; 1913 } 1914 1915 G_LOCK_DEFINE_STATIC (g_prgname); 1916 static gchar *g_prgname = NULL; 1917 1918 /** 1919 * g_get_prgname: 1920 * 1921 * Gets the name of the program. This name should <emphasis>not</emphasis> 1922 * be localized, contrast with g_get_application_name(). 1923 * (If you are using GDK or GTK+ the program name is set in gdk_init(), 1924 * which is called by gtk_init(). The program name is found by taking 1925 * the last component of <literal>argv[0]</literal>.) 1926 * 1927 * Returns: the name of the program. The returned string belongs 1928 * to GLib and must not be modified or freed. 1929 */ 1930 gchar* 1931 g_get_prgname (void) 1932 { 1933 gchar* retval; 1934 1935 G_LOCK (g_prgname); 1936 #ifdef G_OS_WIN32 1937 if (g_prgname == NULL) 1938 { 1939 static gboolean beenhere = FALSE; 1940 1941 if (!beenhere) 1942 { 1943 gchar *utf8_buf = NULL; 1944 wchar_t buf[MAX_PATH+1]; 1945 1946 beenhere = TRUE; 1947 if (GetModuleFileNameW (GetModuleHandle (NULL), 1948 buf, G_N_ELEMENTS (buf)) > 0) 1949 utf8_buf = g_utf16_to_utf8 (buf, -1, NULL, NULL, NULL); 1950 1951 if (utf8_buf) 1952 { 1953 g_prgname = g_path_get_basename (utf8_buf); 1954 g_free (utf8_buf); 1955 } 1956 } 1957 } 1958 #endif 1959 retval = g_prgname; 1960 G_UNLOCK (g_prgname); 1961 1962 return retval; 1963 } 1964 1965 /** 1966 * g_set_prgname: 1967 * @prgname: the name of the program. 1968 * 1969 * Sets the name of the program. This name should <emphasis>not</emphasis> 1970 * be localized, contrast with g_set_application_name(). Note that for 1971 * thread-safety reasons this function can only be called once. 1972 */ 1973 void 1974 g_set_prgname (const gchar *prgname) 1975 { 1976 G_LOCK (g_prgname); 1977 g_free (g_prgname); 1978 g_prgname = g_strdup (prgname); 1979 G_UNLOCK (g_prgname); 1980 } 1981 1982 G_LOCK_DEFINE_STATIC (g_application_name); 1983 static gchar *g_application_name = NULL; 1984 1985 /** 1986 * g_get_application_name: 1987 * 1988 * Gets a human-readable name for the application, as set by 1989 * g_set_application_name(). This name should be localized if 1990 * possible, and is intended for display to the user. Contrast with 1991 * g_get_prgname(), which gets a non-localized name. If 1992 * g_set_application_name() has not been called, returns the result of 1993 * g_get_prgname() (which may be %NULL if g_set_prgname() has also not 1994 * been called). 1995 * 1996 * Return value: human-readable application name. may return %NULL 1997 * 1998 * Since: 2.2 1999 **/ 2000 G_CONST_RETURN gchar* 2001 g_get_application_name (void) 2002 { 2003 gchar* retval; 2004 2005 G_LOCK (g_application_name); 2006 retval = g_application_name; 2007 G_UNLOCK (g_application_name); 2008 2009 if (retval == NULL) 2010 return g_get_prgname (); 2011 2012 return retval; 2013 } 2014 2015 /** 2016 * g_set_application_name: 2017 * @application_name: localized name of the application 2018 * 2019 * Sets a human-readable name for the application. This name should be 2020 * localized if possible, and is intended for display to the user. 2021 * Contrast with g_set_prgname(), which sets a non-localized name. 2022 * g_set_prgname() will be called automatically by gtk_init(), 2023 * but g_set_application_name() will not. 2024 * 2025 * Note that for thread safety reasons, this function can only 2026 * be called once. 2027 * 2028 * The application name will be used in contexts such as error messages, 2029 * or when displaying an application's name in the task list. 2030 * 2031 * Since: 2.2 2032 **/ 2033 void 2034 g_set_application_name (const gchar *application_name) 2035 { 2036 gboolean already_set = FALSE; 2037 2038 G_LOCK (g_application_name); 2039 if (g_application_name) 2040 already_set = TRUE; 2041 else 2042 g_application_name = g_strdup (application_name); 2043 G_UNLOCK (g_application_name); 2044 2045 if (already_set) 2046 g_warning ("g_set_application() name called multiple times"); 2047 } 2048 2049 /** 2050 * g_get_user_data_dir: 2051 * 2052 * Returns a base directory in which to access application data such 2053 * as icons that is customized for a particular user. 2054 * 2055 * On UNIX platforms this is determined using the mechanisms described in 2056 * the <ulink url="http://www.freedesktop.org/Standards/basedir-spec"> 2057 * XDG Base Directory Specification</ulink> 2058 * 2059 * Return value: a string owned by GLib that must not be modified 2060 * or freed. 2061 * Since: 2.6 2062 **/ 2063 G_CONST_RETURN gchar* 2064 g_get_user_data_dir (void) 2065 { 2066 gchar *data_dir; 2067 2068 G_LOCK (g_utils_global); 2069 2070 if (!g_user_data_dir) 2071 { 2072 #ifdef G_OS_WIN32 2073 data_dir = get_special_folder (CSIDL_PERSONAL); 2074 #else 2075 data_dir = (gchar *) g_getenv ("XDG_DATA_HOME"); 2076 2077 if (data_dir && data_dir[0]) 2078 data_dir = g_strdup (data_dir); 2079 #endif 2080 if (!data_dir || !data_dir[0]) 2081 { 2082 g_get_any_init (); 2083 2084 if (g_home_dir) 2085 data_dir = g_build_filename (g_home_dir, ".local", 2086 "share", NULL); 2087 else 2088 data_dir = g_build_filename (g_tmp_dir, g_user_name, ".local", 2089 "share", NULL); 2090 } 2091 2092 g_user_data_dir = data_dir; 2093 } 2094 else 2095 data_dir = g_user_data_dir; 2096 2097 G_UNLOCK (g_utils_global); 2098 2099 return data_dir; 2100 } 2101 2102 static void 2103 g_init_user_config_dir (void) 2104 { 2105 gchar *config_dir; 2106 2107 if (!g_user_config_dir) 2108 { 2109 #ifdef G_OS_WIN32 2110 config_dir = get_special_folder (CSIDL_APPDATA); 2111 #else 2112 config_dir = (gchar *) g_getenv ("XDG_CONFIG_HOME"); 2113 2114 if (config_dir && config_dir[0]) 2115 config_dir = g_strdup (config_dir); 2116 #endif 2117 if (!config_dir || !config_dir[0]) 2118 { 2119 g_get_any_init (); 2120 2121 if (g_home_dir) 2122 config_dir = g_build_filename (g_home_dir, ".config", NULL); 2123 else 2124 config_dir = g_build_filename (g_tmp_dir, g_user_name, ".config", NULL); 2125 } 2126 2127 g_user_config_dir = config_dir; 2128 } 2129 } 2130 2131 /** 2132 * g_get_user_config_dir: 2133 * 2134 * Returns a base directory in which to store user-specific application 2135 * configuration information such as user preferences and settings. 2136 * 2137 * On UNIX platforms this is determined using the mechanisms described in 2138 * the <ulink url="http://www.freedesktop.org/Standards/basedir-spec"> 2139 * XDG Base Directory Specification</ulink> 2140 * 2141 * Return value: a string owned by GLib that must not be modified 2142 * or freed. 2143 * Since: 2.6 2144 **/ 2145 G_CONST_RETURN gchar* 2146 g_get_user_config_dir (void) 2147 { 2148 G_LOCK (g_utils_global); 2149 2150 g_init_user_config_dir (); 2151 2152 G_UNLOCK (g_utils_global); 2153 2154 return g_user_config_dir; 2155 } 2156 2157 /** 2158 * g_get_user_cache_dir: 2159 * 2160 * Returns a base directory in which to store non-essential, cached 2161 * data specific to particular user. 2162 * 2163 * On UNIX platforms this is determined using the mechanisms described in 2164 * the <ulink url="http://www.freedesktop.org/Standards/basedir-spec"> 2165 * XDG Base Directory Specification</ulink> 2166 * 2167 * Return value: a string owned by GLib that must not be modified 2168 * or freed. 2169 * Since: 2.6 2170 **/ 2171 G_CONST_RETURN gchar* 2172 g_get_user_cache_dir (void) 2173 { 2174 gchar *cache_dir; 2175 2176 G_LOCK (g_utils_global); 2177 2178 if (!g_user_cache_dir) 2179 { 2180 #ifdef G_OS_WIN32 2181 cache_dir = get_special_folder (CSIDL_INTERNET_CACHE); /* XXX correct? */ 2182 #else 2183 cache_dir = (gchar *) g_getenv ("XDG_CACHE_HOME"); 2184 2185 if (cache_dir && cache_dir[0]) 2186 cache_dir = g_strdup (cache_dir); 2187 #endif 2188 if (!cache_dir || !cache_dir[0]) 2189 { 2190 g_get_any_init (); 2191 2192 if (g_home_dir) 2193 cache_dir = g_build_filename (g_home_dir, ".cache", NULL); 2194 else 2195 cache_dir = g_build_filename (g_tmp_dir, g_user_name, ".cache", NULL); 2196 } 2197 g_user_cache_dir = cache_dir; 2198 } 2199 else 2200 cache_dir = g_user_cache_dir; 2201 2202 G_UNLOCK (g_utils_global); 2203 2204 return cache_dir; 2205 } 2206 2207 #ifdef HAVE_CARBON 2208 2209 static gchar * 2210 find_folder (OSType type) 2211 { 2212 gchar *filename = NULL; 2213 FSRef found; 2214 2215 if (FSFindFolder (kUserDomain, type, kDontCreateFolder, &found) == noErr) 2216 { 2217 CFURLRef url = CFURLCreateFromFSRef (kCFAllocatorSystemDefault, &found); 2218 2219 if (url) 2220 { 2221 CFStringRef path = CFURLCopyFileSystemPath (url, kCFURLPOSIXPathStyle); 2222 2223 if (path) 2224 { 2225 filename = g_strdup (CFStringGetCStringPtr (path, kCFStringEncodingUTF8)); 2226 2227 if (! filename) 2228 { 2229 filename = g_new0 (gchar, CFStringGetLength (path) * 3 + 1); 2230 2231 CFStringGetCString (path, filename, 2232 CFStringGetLength (path) * 3 + 1, 2233 kCFStringEncodingUTF8); 2234 } 2235 2236 CFRelease (path); 2237 } 2238 2239 CFRelease (url); 2240 } 2241 } 2242 2243 return filename; 2244 } 2245 2246 static void 2247 load_user_special_dirs (void) 2248 { 2249 g_user_special_dirs[G_USER_DIRECTORY_DESKTOP] = find_folder (kDesktopFolderType); 2250 g_user_special_dirs[G_USER_DIRECTORY_DOCUMENTS] = find_folder (kDocumentsFolderType); 2251 g_user_special_dirs[G_USER_DIRECTORY_DOWNLOAD] = find_folder (kDesktopFolderType); /* XXX correct ? */ 2252 g_user_special_dirs[G_USER_DIRECTORY_MUSIC] = find_folder (kMusicDocumentsFolderType); 2253 g_user_special_dirs[G_USER_DIRECTORY_PICTURES] = find_folder (kPictureDocumentsFolderType); 2254 g_user_special_dirs[G_USER_DIRECTORY_PUBLIC_SHARE] = NULL; 2255 g_user_special_dirs[G_USER_DIRECTORY_TEMPLATES] = NULL; 2256 g_user_special_dirs[G_USER_DIRECTORY_VIDEOS] = find_folder (kMovieDocumentsFolderType); 2257 } 2258 2259 #endif /* HAVE_CARBON */ 2260 2261 #if defined(G_OS_WIN32) 2262 static void 2263 load_user_special_dirs (void) 2264 { 2265 typedef HRESULT (WINAPI *t_SHGetKnownFolderPath) (const GUID *rfid, 2266 DWORD dwFlags, 2267 HANDLE hToken, 2268 PWSTR *ppszPath); 2269 t_SHGetKnownFolderPath p_SHGetKnownFolderPath; 2270 static const GUID FOLDERID_Downloads = 2271 { 0x374de290, 0x123f, 0x4565, { 0x91, 0x64, 0x39, 0xc4, 0x92, 0x5e, 0x46, 0x7b } }; 2272 static const GUID FOLDERID_Public = 2273 { 0xDFDF76A2, 0xC82A, 0x4D63, { 0x90, 0x6A, 0x56, 0x44, 0xAC, 0x45, 0x73, 0x85 } }; 2274 wchar_t *wcp; 2275 2276 p_SHGetKnownFolderPath = (t_SHGetKnownFolderPath) GetProcAddress (LoadLibrary ("shell32.dll"), 2277 "SHGetKnownFolderPath"); 2278 2279 g_user_special_dirs[G_USER_DIRECTORY_DESKTOP] = get_special_folder (CSIDL_DESKTOPDIRECTORY); 2280 g_user_special_dirs[G_USER_DIRECTORY_DOCUMENTS] = get_special_folder (CSIDL_PERSONAL); 2281 2282 if (p_SHGetKnownFolderPath == NULL) 2283 { 2284 g_user_special_dirs[G_USER_DIRECTORY_DOWNLOAD] = get_special_folder (CSIDL_DESKTOPDIRECTORY); 2285 } 2286 else 2287 { 2288 wcp = NULL; 2289 (*p_SHGetKnownFolderPath) (&FOLDERID_Downloads, 0, NULL, &wcp); 2290 g_user_special_dirs[G_USER_DIRECTORY_DOWNLOAD] = g_utf16_to_utf8 (wcp, -1, NULL, NULL, NULL); 2291 if (g_user_special_dirs[G_USER_DIRECTORY_DOWNLOAD] == NULL) 2292 g_user_special_dirs[G_USER_DIRECTORY_DOWNLOAD] = get_special_folder (CSIDL_DESKTOPDIRECTORY); 2293 CoTaskMemFree (wcp); 2294 } 2295 2296 g_user_special_dirs[G_USER_DIRECTORY_MUSIC] = get_special_folder (CSIDL_MYMUSIC); 2297 g_user_special_dirs[G_USER_DIRECTORY_PICTURES] = get_special_folder (CSIDL_MYPICTURES); 2298 2299 if (p_SHGetKnownFolderPath == NULL) 2300 { 2301 /* XXX */ 2302 g_user_special_dirs[G_USER_DIRECTORY_PUBLIC_SHARE] = get_special_folder (CSIDL_COMMON_DOCUMENTS); 2303 } 2304 else 2305 { 2306 wcp = NULL; 2307 (*p_SHGetKnownFolderPath) (&FOLDERID_Public, 0, NULL, &wcp); 2308 g_user_special_dirs[G_USER_DIRECTORY_PUBLIC_SHARE] = g_utf16_to_utf8 (wcp, -1, NULL, NULL, NULL); 2309 if (g_user_special_dirs[G_USER_DIRECTORY_PUBLIC_SHARE] == NULL) 2310 g_user_special_dirs[G_USER_DIRECTORY_PUBLIC_SHARE] = get_special_folder (CSIDL_COMMON_DOCUMENTS); 2311 CoTaskMemFree (wcp); 2312 } 2313 2314 g_user_special_dirs[G_USER_DIRECTORY_TEMPLATES] = get_special_folder (CSIDL_TEMPLATES); 2315 g_user_special_dirs[G_USER_DIRECTORY_VIDEOS] = get_special_folder (CSIDL_MYVIDEO); 2316 } 2317 #endif /* G_OS_WIN32 */ 2318 2319 static void g_init_user_config_dir (void); 2320 2321 #if defined(G_OS_UNIX) && !defined(HAVE_CARBON) 2322 2323 /* adapted from xdg-user-dir-lookup.c 2324 * 2325 * Copyright (C) 2007 Red Hat Inc. 2326 * 2327 * Permission is hereby granted, free of charge, to any person 2328 * obtaining a copy of this software and associated documentation files 2329 * (the "Software"), to deal in the Software without restriction, 2330 * including without limitation the rights to use, copy, modify, merge, 2331 * publish, distribute, sublicense, and/or sell copies of the Software, 2332 * and to permit persons to whom the Software is furnished to do so, 2333 * subject to the following conditions: 2334 * 2335 * The above copyright notice and this permission notice shall be 2336 * included in all copies or substantial portions of the Software. 2337 * 2338 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 2339 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 2340 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 2341 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 2342 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 2343 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 2344 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 2345 * SOFTWARE. 2346 */ 2347 static void 2348 load_user_special_dirs (void) 2349 { 2350 gchar *config_file; 2351 gchar *data; 2352 gchar **lines; 2353 gint n_lines, i; 2354 2355 g_init_user_config_dir (); 2356 config_file = g_build_filename (g_user_config_dir, 2357 "user-dirs.dirs", 2358 NULL); 2359 2360 if (!g_file_get_contents (config_file, &data, NULL, NULL)) 2361 { 2362 g_free (config_file); 2363 return; 2364 } 2365 2366 lines = g_strsplit (data, "\n", -1); 2367 n_lines = g_strv_length (lines); 2368 g_free (data); 2369 2370 for (i = 0; i < n_lines; i++) 2371 { 2372 gchar *buffer = lines[i]; 2373 gchar *d, *p; 2374 gint len; 2375 gboolean is_relative = FALSE; 2376 GUserDirectory directory; 2377 2378 /* Remove newline at end */ 2379 len = strlen (buffer); 2380 if (len > 0 && buffer[len - 1] == '\n') 2381 buffer[len - 1] = 0; 2382 2383 p = buffer; 2384 while (*p == ' ' || *p == '\t') 2385 p++; 2386 2387 if (strncmp (p, "XDG_DESKTOP_DIR", strlen ("XDG_DESKTOP_DIR")) == 0) 2388 { 2389 directory = G_USER_DIRECTORY_DESKTOP; 2390 p += strlen ("XDG_DESKTOP_DIR"); 2391 } 2392 else if (strncmp (p, "XDG_DOCUMENTS_DIR", strlen ("XDG_DOCUMENTS_DIR")) == 0) 2393 { 2394 directory = G_USER_DIRECTORY_DOCUMENTS; 2395 p += strlen ("XDG_DOCUMENTS_DIR"); 2396 } 2397 else if (strncmp (p, "XDG_DOWNLOAD_DIR", strlen ("XDG_DOWNLOAD_DIR")) == 0) 2398 { 2399 directory = G_USER_DIRECTORY_DOWNLOAD; 2400 p += strlen ("XDG_DOWNLOAD_DIR"); 2401 } 2402 else if (strncmp (p, "XDG_MUSIC_DIR", strlen ("XDG_MUSIC_DIR")) == 0) 2403 { 2404 directory = G_USER_DIRECTORY_MUSIC; 2405 p += strlen ("XDG_MUSIC_DIR"); 2406 } 2407 else if (strncmp (p, "XDG_PICTURES_DIR", strlen ("XDG_PICTURES_DIR")) == 0) 2408 { 2409 directory = G_USER_DIRECTORY_PICTURES; 2410 p += strlen ("XDG_PICTURES_DIR"); 2411 } 2412 else if (strncmp (p, "XDG_PUBLICSHARE_DIR", strlen ("XDG_PUBLICSHARE_DIR")) == 0) 2413 { 2414 directory = G_USER_DIRECTORY_PUBLIC_SHARE; 2415 p += strlen ("XDG_PUBLICSHARE_DIR"); 2416 } 2417 else if (strncmp (p, "XDG_TEMPLATES_DIR", strlen ("XDG_TEMPLATES_DIR")) == 0) 2418 { 2419 directory = G_USER_DIRECTORY_TEMPLATES; 2420 p += strlen ("XDG_TEMPLATES_DIR"); 2421 } 2422 else if (strncmp (p, "XDG_VIDEOS_DIR", strlen ("XDG_VIDEOS_DIR")) == 0) 2423 { 2424 directory = G_USER_DIRECTORY_VIDEOS; 2425 p += strlen ("XDG_VIDEOS_DIR"); 2426 } 2427 else 2428 continue; 2429 2430 while (*p == ' ' || *p == '\t') 2431 p++; 2432 2433 if (*p != '=') 2434 continue; 2435 p++; 2436 2437 while (*p == ' ' || *p == '\t') 2438 p++; 2439 2440 if (*p != '"') 2441 continue; 2442 p++; 2443 2444 if (strncmp (p, "$HOME", 5) == 0) 2445 { 2446 p += 5; 2447 is_relative = TRUE; 2448 } 2449 else if (*p != '/') 2450 continue; 2451 2452 d = strrchr (p, '"'); 2453 if (!d) 2454 continue; 2455 *d = 0; 2456 2457 d = p; 2458 2459 /* remove trailing slashes */ 2460 len = strlen (d); 2461 if (d[len - 1] == '/') 2462 d[len - 1] = 0; 2463 2464 if (is_relative) 2465 { 2466 g_get_any_init (); 2467 g_user_special_dirs[directory] = g_build_filename (g_home_dir, d, NULL); 2468 } 2469 else 2470 g_user_special_dirs[directory] = g_strdup (d); 2471 } 2472 2473 g_strfreev (lines); 2474 g_free (config_file); 2475 } 2476 2477 #endif /* G_OS_UNIX && !HAVE_CARBON */ 2478 2479 /** 2480 * g_get_user_special_dir: 2481 * @directory: the logical id of special directory 2482 * 2483 * Returns the full path of a special directory using its logical id. 2484 * 2485 * On Unix this is done using the XDG special user directories. 2486 * For compatibility with existing practise, %G_USER_DIRECTORY_DESKTOP 2487 * falls back to <filename>$HOME/Desktop</filename> when XDG special 2488 * user directories have not been set up. 2489 * 2490 * Depending on the platform, the user might be able to change the path 2491 * of the special directory without requiring the session to restart; GLib 2492 * will not reflect any change once the special directories are loaded. 2493 * 2494 * Return value: the path to the specified special directory, or %NULL 2495 * if the logical id was not found. The returned string is owned by 2496 * GLib and should not be modified or freed. 2497 * 2498 * Since: 2.14 2499 */ 2500 G_CONST_RETURN gchar * 2501 g_get_user_special_dir (GUserDirectory directory) 2502 { 2503 g_return_val_if_fail (directory >= G_USER_DIRECTORY_DESKTOP && 2504 directory < G_USER_N_DIRECTORIES, NULL); 2505 2506 G_LOCK (g_utils_global); 2507 2508 if (G_UNLIKELY (g_user_special_dirs == NULL)) 2509 { 2510 g_user_special_dirs = g_new0 (gchar *, G_USER_N_DIRECTORIES); 2511 2512 load_user_special_dirs (); 2513 2514 /* Special-case desktop for historical compatibility */ 2515 if (g_user_special_dirs[G_USER_DIRECTORY_DESKTOP] == NULL) 2516 { 2517 g_get_any_init (); 2518 2519 g_user_special_dirs[G_USER_DIRECTORY_DESKTOP] = 2520 g_build_filename (g_home_dir, "Desktop", NULL); 2521 } 2522 } 2523 2524 G_UNLOCK (g_utils_global); 2525 2526 return g_user_special_dirs[directory]; 2527 } 2528 2529 #ifdef G_OS_WIN32 2530 2531 #undef g_get_system_data_dirs 2532 2533 static HMODULE 2534 get_module_for_address (gconstpointer address) 2535 { 2536 /* Holds the g_utils_global lock */ 2537 2538 static gboolean beenhere = FALSE; 2539 typedef BOOL (WINAPI *t_GetModuleHandleExA) (DWORD, LPCTSTR, HMODULE *); 2540 static t_GetModuleHandleExA p_GetModuleHandleExA = NULL; 2541 HMODULE hmodule = NULL; 2542 2543 if (!address) 2544 return NULL; 2545 2546 if (!beenhere) 2547 { 2548 p_GetModuleHandleExA = 2549 (t_GetModuleHandleExA) GetProcAddress (LoadLibrary ("kernel32.dll"), 2550 "GetModuleHandleExA"); 2551 beenhere = TRUE; 2552 } 2553 2554 if (p_GetModuleHandleExA == NULL || 2555 !(*p_GetModuleHandleExA) (GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT | 2556 GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS, 2557 address, &hmodule)) 2558 { 2559 MEMORY_BASIC_INFORMATION mbi; 2560 VirtualQuery (address, &mbi, sizeof (mbi)); 2561 hmodule = (HMODULE) mbi.AllocationBase; 2562 } 2563 2564 return hmodule; 2565 } 2566 2567 static gchar * 2568 get_module_share_dir (gconstpointer address) 2569 { 2570 HMODULE hmodule; 2571 gchar *filename; 2572 gchar *retval; 2573 2574 hmodule = get_module_for_address (address); 2575 if (hmodule == NULL) 2576 return NULL; 2577 2578 filename = g_win32_get_package_installation_directory_of_module (hmodule); 2579 retval = g_build_filename (filename, "share", NULL); 2580 g_free (filename); 2581 2582 return retval; 2583 } 2584 2585 G_CONST_RETURN gchar * G_CONST_RETURN * 2586 g_win32_get_system_data_dirs_for_module (void (*address_of_function)()) 2587 { 2588 GArray *data_dirs; 2589 HMODULE hmodule; 2590 static GHashTable *per_module_data_dirs = NULL; 2591 gchar **retval; 2592 gchar *p; 2593 gchar *exe_root; 2594 2595 if (address_of_function) 2596 { 2597 G_LOCK (g_utils_global); 2598 hmodule = get_module_for_address (address_of_function); 2599 if (hmodule != NULL) 2600 { 2601 if (per_module_data_dirs == NULL) 2602 per_module_data_dirs = g_hash_table_new (NULL, NULL); 2603 else 2604 { 2605 retval = g_hash_table_lookup (per_module_data_dirs, hmodule); 2606 2607 if (retval != NULL) 2608 { 2609 G_UNLOCK (g_utils_global); 2610 return (G_CONST_RETURN gchar * G_CONST_RETURN *) retval; 2611 } 2612 } 2613 } 2614 } 2615 2616 data_dirs = g_array_new (TRUE, TRUE, sizeof (char *)); 2617 2618 /* Documents and Settings\All Users\Application Data */ 2619 p = get_special_folder (CSIDL_COMMON_APPDATA); 2620 if (p) 2621 g_array_append_val (data_dirs, p); 2622 2623 /* Documents and Settings\All Users\Documents */ 2624 p = get_special_folder (CSIDL_COMMON_DOCUMENTS); 2625 if (p) 2626 g_array_append_val (data_dirs, p); 2627 2628 /* Using the above subfolders of Documents and Settings perhaps 2629 * makes sense from a Windows perspective. 2630 * 2631 * But looking at the actual use cases of this function in GTK+ 2632 * and GNOME software, what we really want is the "share" 2633 * subdirectory of the installation directory for the package 2634 * our caller is a part of. 2635 * 2636 * The address_of_function parameter, if non-NULL, points to a 2637 * function in the calling module. Use that to determine that 2638 * module's installation folder, and use its "share" subfolder. 2639 * 2640 * Additionally, also use the "share" subfolder of the installation 2641 * locations of GLib and the .exe file being run. 2642 * 2643 * To guard against none of the above being what is really wanted, 2644 * callers of this function should have Win32-specific code to look 2645 * up their installation folder themselves, and handle a subfolder 2646 * "share" of it in the same way as the folders returned from this 2647 * function. 2648 */ 2649 2650 p = get_module_share_dir (address_of_function); 2651 if (p) 2652 g_array_append_val (data_dirs, p); 2653 2654 if (glib_dll != NULL) 2655 { 2656 gchar *glib_root = g_win32_get_package_installation_directory_of_module (glib_dll); 2657 p = g_build_filename (glib_root, "share", NULL); 2658 if (p) 2659 g_array_append_val (data_dirs, p); 2660 g_free (glib_root); 2661 } 2662 2663 exe_root = g_win32_get_package_installation_directory_of_module (NULL); 2664 p = g_build_filename (exe_root, "share", NULL); 2665 if (p) 2666 g_array_append_val (data_dirs, p); 2667 g_free (exe_root); 2668 2669 retval = (gchar **) g_array_free (data_dirs, FALSE); 2670 2671 if (address_of_function) 2672 { 2673 if (hmodule != NULL) 2674 g_hash_table_insert (per_module_data_dirs, hmodule, retval); 2675 G_UNLOCK (g_utils_global); 2676 } 2677 2678 return (G_CONST_RETURN gchar * G_CONST_RETURN *) retval; 2679 } 2680 2681 #endif 2682 2683 /** 2684 * g_get_system_data_dirs: 2685 * 2686 * Returns an ordered list of base directories in which to access 2687 * system-wide application data. 2688 * 2689 * On UNIX platforms this is determined using the mechanisms described in 2690 * the <ulink url="http://www.freedesktop.org/Standards/basedir-spec"> 2691 * XDG Base Directory Specification</ulink> 2692 * 2693 * On Windows the first elements in the list are the Application Data 2694 * and Documents folders for All Users. (These can be determined only 2695 * on Windows 2000 or later and are not present in the list on other 2696 * Windows versions.) See documentation for CSIDL_COMMON_APPDATA and 2697 * CSIDL_COMMON_DOCUMENTS. 2698 * 2699 * Then follows the "share" subfolder in the installation folder for 2700 * the package containing the DLL that calls this function, if it can 2701 * be determined. 2702 * 2703 * Finally the list contains the "share" subfolder in the installation 2704 * folder for GLib, and in the installation folder for the package the 2705 * application's .exe file belongs to. 2706 * 2707 * The installation folders above are determined by looking up the 2708 * folder where the module (DLL or EXE) in question is located. If the 2709 * folder's name is "bin", its parent is used, otherwise the folder 2710 * itself. 2711 * 2712 * Note that on Windows the returned list can vary depending on where 2713 * this function is called. 2714 * 2715 * Return value: a %NULL-terminated array of strings owned by GLib that must 2716 * not be modified or freed. 2717 * Since: 2.6 2718 **/ 2719 G_CONST_RETURN gchar * G_CONST_RETURN * 2720 g_get_system_data_dirs (void) 2721 { 2722 gchar **data_dir_vector; 2723 2724 G_LOCK (g_utils_global); 2725 2726 if (!g_system_data_dirs) 2727 { 2728 #ifdef G_OS_WIN32 2729 data_dir_vector = (gchar **) g_win32_get_system_data_dirs_for_module (NULL); 2730 #else 2731 gchar *data_dirs = (gchar *) g_getenv ("XDG_DATA_DIRS"); 2732 2733 if (!data_dirs || !data_dirs[0]) 2734 data_dirs = "/usr/local/share/:/usr/share/"; 2735 2736 data_dir_vector = g_strsplit (data_dirs, G_SEARCHPATH_SEPARATOR_S, 0); 2737 #endif 2738 2739 g_system_data_dirs = data_dir_vector; 2740 } 2741 else 2742 data_dir_vector = g_system_data_dirs; 2743 2744 G_UNLOCK (g_utils_global); 2745 2746 return (G_CONST_RETURN gchar * G_CONST_RETURN *) data_dir_vector; 2747 } 2748 2749 /** 2750 * g_get_system_config_dirs: 2751 * 2752 * Returns an ordered list of base directories in which to access 2753 * system-wide configuration information. 2754 * 2755 * On UNIX platforms this is determined using the mechanisms described in 2756 * the <ulink url="http://www.freedesktop.org/Standards/basedir-spec"> 2757 * XDG Base Directory Specification</ulink> 2758 * 2759 * Return value: a %NULL-terminated array of strings owned by GLib that must 2760 * not be modified or freed. 2761 * Since: 2.6 2762 **/ 2763 G_CONST_RETURN gchar * G_CONST_RETURN * 2764 g_get_system_config_dirs (void) 2765 { 2766 gchar *conf_dirs, **conf_dir_vector; 2767 2768 G_LOCK (g_utils_global); 2769 2770 if (!g_system_config_dirs) 2771 { 2772 #ifdef G_OS_WIN32 2773 conf_dirs = get_special_folder (CSIDL_COMMON_APPDATA); 2774 if (conf_dirs) 2775 { 2776 conf_dir_vector = g_strsplit (conf_dirs, G_SEARCHPATH_SEPARATOR_S, 0); 2777 g_free (conf_dirs); 2778 } 2779 else 2780 { 2781 /* Return empty list */ 2782 conf_dir_vector = g_strsplit ("", G_SEARCHPATH_SEPARATOR_S, 0); 2783 } 2784 #else 2785 conf_dirs = (gchar *) g_getenv ("XDG_CONFIG_DIRS"); 2786 2787 if (!conf_dirs || !conf_dirs[0]) 2788 conf_dirs = "/etc/xdg"; 2789 2790 conf_dir_vector = g_strsplit (conf_dirs, G_SEARCHPATH_SEPARATOR_S, 0); 2791 #endif 2792 2793 g_system_config_dirs = conf_dir_vector; 2794 } 2795 else 2796 conf_dir_vector = g_system_config_dirs; 2797 G_UNLOCK (g_utils_global); 2798 2799 return (G_CONST_RETURN gchar * G_CONST_RETURN *) conf_dir_vector; 2800 } 2801 2802 #ifndef G_OS_WIN32 2803 2804 static GHashTable *alias_table = NULL; 2805 2806 /* read an alias file for the locales */ 2807 static void 2808 read_aliases (gchar *file) 2809 { 2810 FILE *fp; 2811 char buf[256]; 2812 2813 if (!alias_table) 2814 alias_table = g_hash_table_new (g_str_hash, g_str_equal); 2815 fp = fopen (file,"r"); 2816 if (!fp) 2817 return; 2818 while (fgets (buf, 256, fp)) 2819 { 2820 char *p, *q; 2821 2822 g_strstrip (buf); 2823 2824 /* Line is a comment */ 2825 if ((buf[0] == '#') || (buf[0] == '\0')) 2826 continue; 2827 2828 /* Reads first column */ 2829 for (p = buf, q = NULL; *p; p++) { 2830 if ((*p == '\t') || (*p == ' ') || (*p == ':')) { 2831 *p = '\0'; 2832 q = p+1; 2833 while ((*q == '\t') || (*q == ' ')) { 2834 q++; 2835 } 2836 break; 2837 } 2838 } 2839 /* The line only had one column */ 2840 if (!q || *q == '\0') 2841 continue; 2842 2843 /* Read second column */ 2844 for (p = q; *p; p++) { 2845 if ((*p == '\t') || (*p == ' ')) { 2846 *p = '\0'; 2847 break; 2848 } 2849 } 2850 2851 /* Add to alias table if necessary */ 2852 if (!g_hash_table_lookup (alias_table, buf)) { 2853 g_hash_table_insert (alias_table, g_strdup (buf), g_strdup (q)); 2854 } 2855 } 2856 fclose (fp); 2857 } 2858 2859 #endif 2860 2861 static char * 2862 unalias_lang (char *lang) 2863 { 2864 #ifndef G_OS_WIN32 2865 char *p; 2866 int i; 2867 2868 if (!alias_table) 2869 read_aliases ("/usr/share/locale/locale.alias"); 2870 2871 i = 0; 2872 while ((p = g_hash_table_lookup (alias_table, lang)) && (strcmp (p, lang) != 0)) 2873 { 2874 lang = p; 2875 if (i++ == 30) 2876 { 2877 static gboolean said_before = FALSE; 2878 if (!said_before) 2879 g_warning ("Too many alias levels for a locale, " 2880 "may indicate a loop"); 2881 said_before = TRUE; 2882 return lang; 2883 } 2884 } 2885 #endif 2886 return lang; 2887 } 2888 2889 /* Mask for components of locale spec. The ordering here is from 2890 * least significant to most significant 2891 */ 2892 enum 2893 { 2894 COMPONENT_CODESET = 1 << 0, 2895 COMPONENT_TERRITORY = 1 << 1, 2896 COMPONENT_MODIFIER = 1 << 2 2897 }; 2898 2899 /* Break an X/Open style locale specification into components 2900 */ 2901 static guint 2902 explode_locale (const gchar *locale, 2903 gchar **language, 2904 gchar **territory, 2905 gchar **codeset, 2906 gchar **modifier) 2907 { 2908 const gchar *uscore_pos; 2909 const gchar *at_pos; 2910 const gchar *dot_pos; 2911 2912 guint mask = 0; 2913 2914 uscore_pos = strchr (locale, '_'); 2915 dot_pos = strchr (uscore_pos ? uscore_pos : locale, '.'); 2916 at_pos = strchr (dot_pos ? dot_pos : (uscore_pos ? uscore_pos : locale), '@'); 2917 2918 if (at_pos) 2919 { 2920 mask |= COMPONENT_MODIFIER; 2921 *modifier = g_strdup (at_pos); 2922 } 2923 else 2924 at_pos = locale + strlen (locale); 2925 2926 if (dot_pos) 2927 { 2928 mask |= COMPONENT_CODESET; 2929 *codeset = g_strndup (dot_pos, at_pos - dot_pos); 2930 } 2931 else 2932 dot_pos = at_pos; 2933 2934 if (uscore_pos) 2935 { 2936 mask |= COMPONENT_TERRITORY; 2937 *territory = g_strndup (uscore_pos, dot_pos - uscore_pos); 2938 } 2939 else 2940 uscore_pos = dot_pos; 2941 2942 *language = g_strndup (locale, uscore_pos - locale); 2943 2944 return mask; 2945 } 2946 2947 /* 2948 * Compute all interesting variants for a given locale name - 2949 * by stripping off different components of the value. 2950 * 2951 * For simplicity, we assume that the locale is in 2952 * X/Open format: language[_territory][.codeset][@modifier] 2953 * 2954 * TODO: Extend this to handle the CEN format (see the GNUlibc docs) 2955 * as well. We could just copy the code from glibc wholesale 2956 * but it is big, ugly, and complicated, so I'm reluctant 2957 * to do so when this should handle 99% of the time... 2958 */ 2959 GSList * 2960 _g_compute_locale_variants (const gchar *locale) 2961 { 2962 GSList *retval = NULL; 2963 2964 gchar *language = NULL; 2965 gchar *territory = NULL; 2966 gchar *codeset = NULL; 2967 gchar *modifier = NULL; 2968 2969 guint mask; 2970 guint i; 2971 2972 g_return_val_if_fail (locale != NULL, NULL); 2973 2974 mask = explode_locale (locale, &language, &territory, &codeset, &modifier); 2975 2976 /* Iterate through all possible combinations, from least attractive 2977 * to most attractive. 2978 */ 2979 for (i = 0; i <= mask; i++) 2980 if ((i & ~mask) == 0) 2981 { 2982 gchar *val = g_strconcat (language, 2983 (i & COMPONENT_TERRITORY) ? territory : "", 2984 (i & COMPONENT_CODESET) ? codeset : "", 2985 (i & COMPONENT_MODIFIER) ? modifier : "", 2986 NULL); 2987 retval = g_slist_prepend (retval, val); 2988 } 2989 2990 g_free (language); 2991 if (mask & COMPONENT_CODESET) 2992 g_free (codeset); 2993 if (mask & COMPONENT_TERRITORY) 2994 g_free (territory); 2995 if (mask & COMPONENT_MODIFIER) 2996 g_free (modifier); 2997 2998 return retval; 2999 } 3000 3001 /* The following is (partly) taken from the gettext package. 3002 Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation, Inc. */ 3003 3004 static const gchar * 3005 guess_category_value (const gchar *category_name) 3006 { 3007 const gchar *retval; 3008 3009 /* The highest priority value is the `LANGUAGE' environment 3010 variable. This is a GNU extension. */ 3011 retval = g_getenv ("LANGUAGE"); 3012 if ((retval != NULL) && (retval[0] != '\0')) 3013 return retval; 3014 3015 /* `LANGUAGE' is not set. So we have to proceed with the POSIX 3016 methods of looking to `LC_ALL', `LC_xxx', and `LANG'. On some 3017 systems this can be done by the `setlocale' function itself. */ 3018 3019 /* Setting of LC_ALL overwrites all other. */ 3020 retval = g_getenv ("LC_ALL"); 3021 if ((retval != NULL) && (retval[0] != '\0')) 3022 return retval; 3023 3024 /* Next comes the name of the desired category. */ 3025 retval = g_getenv (category_name); 3026 if ((retval != NULL) && (retval[0] != '\0')) 3027 return retval; 3028 3029 /* Last possibility is the LANG environment variable. */ 3030 retval = g_getenv ("LANG"); 3031 if ((retval != NULL) && (retval[0] != '\0')) 3032 return retval; 3033 3034 #ifdef G_PLATFORM_WIN32 3035 /* g_win32_getlocale() first checks for LC_ALL, LC_MESSAGES and 3036 * LANG, which we already did above. Oh well. The main point of 3037 * calling g_win32_getlocale() is to get the thread's locale as used 3038 * by Windows and the Microsoft C runtime (in the "English_United 3039 * States" format) translated into the Unixish format. 3040 */ 3041 retval = g_win32_getlocale (); 3042 if ((retval != NULL) && (retval[0] != '\0')) 3043 return retval; 3044 #endif 3045 3046 return NULL; 3047 } 3048 3049 typedef struct _GLanguageNamesCache GLanguageNamesCache; 3050 3051 struct _GLanguageNamesCache { 3052 gchar *languages; 3053 gchar **language_names; 3054 }; 3055 3056 static void 3057 language_names_cache_free (gpointer data) 3058 { 3059 GLanguageNamesCache *cache = data; 3060 g_free (cache->languages); 3061 g_strfreev (cache->language_names); 3062 g_free (cache); 3063 } 3064 3065 /** 3066 * g_get_language_names: 3067 * 3068 * Computes a list of applicable locale names, which can be used to 3069 * e.g. construct locale-dependent filenames or search paths. The returned 3070 * list is sorted from most desirable to least desirable and always contains 3071 * the default locale "C". 3072 * 3073 * For example, if LANGUAGE=de:en_US, then the returned list is 3074 * "de", "en_US", "en", "C". 3075 * 3076 * This function consults the environment variables <envar>LANGUAGE</envar>, 3077 * <envar>LC_ALL</envar>, <envar>LC_MESSAGES</envar> and <envar>LANG</envar> 3078 * to find the list of locales specified by the user. 3079 * 3080 * Return value: a %NULL-terminated array of strings owned by GLib 3081 * that must not be modified or freed. 3082 * 3083 * Since: 2.6 3084 **/ 3085 G_CONST_RETURN gchar * G_CONST_RETURN * 3086 g_get_language_names (void) 3087 { 3088 static GStaticPrivate cache_private = G_STATIC_PRIVATE_INIT; 3089 GLanguageNamesCache *cache = g_static_private_get (&cache_private); 3090 const gchar *value; 3091 3092 if (!cache) 3093 { 3094 cache = g_new0 (GLanguageNamesCache, 1); 3095 g_static_private_set (&cache_private, cache, language_names_cache_free); 3096 } 3097 3098 value = guess_category_value ("LC_MESSAGES"); 3099 if (!value) 3100 value = "C"; 3101 3102 if (!(cache->languages && strcmp (cache->languages, value) == 0)) 3103 { 3104 gchar **languages; 3105 gchar **alist, **a; 3106 GSList *list, *l; 3107 gint i; 3108 3109 g_free (cache->languages); 3110 g_strfreev (cache->language_names); 3111 cache->languages = g_strdup (value); 3112 3113 alist = g_strsplit (value, ":", 0); 3114 list = NULL; 3115 for (a = alist; *a; a++) 3116 { 3117 gchar *b = unalias_lang (*a); 3118 list = g_slist_concat (list, _g_compute_locale_variants (b)); 3119 } 3120 g_strfreev (alist); 3121 list = g_slist_append (list, g_strdup ("C")); 3122 3123 cache->language_names = languages = g_new (gchar *, g_slist_length (list) + 1); 3124 for (l = list, i = 0; l; l = l->next, i++) 3125 languages[i] = l->data; 3126 languages[i] = NULL; 3127 3128 g_slist_free (list); 3129 } 3130 3131 return (G_CONST_RETURN gchar * G_CONST_RETURN *) cache->language_names; 3132 } 3133 3134 /** 3135 * g_direct_hash: 3136 * @v: a #gpointer key 3137 * 3138 * Converts a gpointer to a hash value. 3139 * It can be passed to g_hash_table_new() as the @hash_func parameter, 3140 * when using pointers as keys in a #GHashTable. 3141 * 3142 * Returns: a hash value corresponding to the key. 3143 */ 3144 guint 3145 g_direct_hash (gconstpointer v) 3146 { 3147 return GPOINTER_TO_UINT (v); 3148 } 3149 3150 /** 3151 * g_direct_equal: 3152 * @v1: a key. 3153 * @v2: a key to compare with @v1. 3154 * 3155 * Compares two #gpointer arguments and returns %TRUE if they are equal. 3156 * It can be passed to g_hash_table_new() as the @key_equal_func 3157 * parameter, when using pointers as keys in a #GHashTable. 3158 * 3159 * Returns: %TRUE if the two keys match. 3160 */ 3161 gboolean 3162 g_direct_equal (gconstpointer v1, 3163 gconstpointer v2) 3164 { 3165 return v1 == v2; 3166 } 3167 3168 /** 3169 * g_int_equal: 3170 * @v1: a pointer to a #gint key. 3171 * @v2: a pointer to a #gint key to compare with @v1. 3172 * 3173 * Compares the two #gint values being pointed to and returns 3174 * %TRUE if they are equal. 3175 * It can be passed to g_hash_table_new() as the @key_equal_func 3176 * parameter, when using pointers to integers as keys in a #GHashTable. 3177 * 3178 * Returns: %TRUE if the two keys match. 3179 */ 3180 gboolean 3181 g_int_equal (gconstpointer v1, 3182 gconstpointer v2) 3183 { 3184 return *((const gint*) v1) == *((const gint*) v2); 3185 } 3186 3187 /** 3188 * g_int_hash: 3189 * @v: a pointer to a #gint key 3190 * 3191 * Converts a pointer to a #gint to a hash value. 3192 * It can be passed to g_hash_table_new() as the @hash_func parameter, 3193 * when using pointers to integers values as keys in a #GHashTable. 3194 * 3195 * Returns: a hash value corresponding to the key. 3196 */ 3197 guint 3198 g_int_hash (gconstpointer v) 3199 { 3200 return *(const gint*) v; 3201 } 3202 3203 /** 3204 * g_nullify_pointer: 3205 * @nullify_location: the memory address of the pointer. 3206 * 3207 * Set the pointer at the specified location to %NULL. 3208 **/ 3209 void 3210 g_nullify_pointer (gpointer *nullify_location) 3211 { 3212 g_return_if_fail (nullify_location != NULL); 3213 3214 *nullify_location = NULL; 3215 } 3216 3217 /** 3218 * g_get_codeset: 3219 * 3220 * Get the codeset for the current locale. 3221 * 3222 * Return value: a newly allocated string containing the name 3223 * of the codeset. This string must be freed with g_free(). 3224 **/ 3225 gchar * 3226 g_get_codeset (void) 3227 { 3228 const gchar *charset; 3229 3230 g_get_charset (&charset); 3231 3232 return g_strdup (charset); 3233 } 3234 3235 /* This is called from g_thread_init(). It's used to 3236 * initialize some static data in a threadsafe way. 3237 */ 3238 void 3239 _g_utils_thread_init (void) 3240 { 3241 g_get_language_names (); 3242 } 3243 3244 #ifdef G_OS_WIN32 3245 3246 /** 3247 * _glib_get_locale_dir: 3248 * 3249 * Return the path to the share\locale or lib\locale subfolder of the 3250 * GLib installation folder. The path is in the system codepage. We 3251 * have to use system codepage as bindtextdomain() doesn't have a 3252 * UTF-8 interface. 3253 */ 3254 static gchar * 3255 _glib_get_locale_dir (void) 3256 { 3257 gchar *install_dir = NULL, *locale_dir; 3258 gchar *retval = NULL; 3259 3260 if (glib_dll != NULL) 3261 install_dir = g_win32_get_package_installation_directory_of_module (glib_dll); 3262 3263 if (install_dir) 3264 { 3265 /* 3266 * Append "/share/locale" or "/lib/locale" depending on whether 3267 * autoconfigury detected GNU gettext or not. 3268 */ 3269 const char *p = GLIB_LOCALE_DIR + strlen (GLIB_LOCALE_DIR); 3270 while (*--p != '/') 3271 ; 3272 while (*--p != '/') 3273 ; 3274 3275 locale_dir = g_build_filename (install_dir, p, NULL); 3276 3277 retval = g_win32_locale_filename_from_utf8 (locale_dir); 3278 3279 g_free (install_dir); 3280 g_free (locale_dir); 3281 } 3282 3283 if (retval) 3284 return retval; 3285 else 3286 return g_strdup (""); 3287 } 3288 3289 #undef GLIB_LOCALE_DIR 3290 3291 #endif /* G_OS_WIN32 */ 3292 3293 /** 3294 * glib_gettext: 3295 * @str: The string to be translated 3296 * 3297 * Returns the translated string from the glib translations. 3298 * This is an internal function and should only be used by 3299 * the internals of glib (such as libgio). 3300 * 3301 * Returns: the transation of @str to the current locale 3302 */ 3303 G_CONST_RETURN gchar * 3304 glib_gettext (const gchar *str) 3305 { 3306 static gboolean _glib_gettext_initialized = FALSE; 3307 3308 if (!_glib_gettext_initialized) 3309 { 3310 #ifdef G_OS_WIN32 3311 gchar *tmp = _glib_get_locale_dir (); 3312 bindtextdomain (GETTEXT_PACKAGE, tmp); 3313 g_free (tmp); 3314 #else 3315 bindtextdomain (GETTEXT_PACKAGE, GLIB_LOCALE_DIR); 3316 #endif 3317 # ifdef HAVE_BIND_TEXTDOMAIN_CODESET 3318 bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8"); 3319 # endif 3320 _glib_gettext_initialized = TRUE; 3321 } 3322 3323 return g_dgettext (GETTEXT_PACKAGE, str); 3324 } 3325 3326 #if defined (G_OS_WIN32) && !defined (_WIN64) 3327 3328 /* Binary compatibility versions. Not for newly compiled code. */ 3329 3330 #undef g_find_program_in_path 3331 3332 gchar* 3333 g_find_program_in_path (const gchar *program) 3334 { 3335 gchar *utf8_program = g_locale_to_utf8 (program, -1, NULL, NULL, NULL); 3336 gchar *utf8_retval = g_find_program_in_path_utf8 (utf8_program); 3337 gchar *retval; 3338 3339 g_free (utf8_program); 3340 if (utf8_retval == NULL) 3341 return NULL; 3342 retval = g_locale_from_utf8 (utf8_retval, -1, NULL, NULL, NULL); 3343 g_free (utf8_retval); 3344 3345 return retval; 3346 } 3347 3348 #undef g_get_current_dir 3349 3350 gchar* 3351 g_get_current_dir (void) 3352 { 3353 gchar *utf8_dir = g_get_current_dir_utf8 (); 3354 gchar *dir = g_locale_from_utf8 (utf8_dir, -1, NULL, NULL, NULL); 3355 g_free (utf8_dir); 3356 return dir; 3357 } 3358 3359 #undef g_getenv 3360 3361 G_CONST_RETURN gchar* 3362 g_getenv (const gchar *variable) 3363 { 3364 gchar *utf8_variable = g_locale_to_utf8 (variable, -1, NULL, NULL, NULL); 3365 const gchar *utf8_value = g_getenv_utf8 (utf8_variable); 3366 gchar *value; 3367 GQuark quark; 3368 3369 g_free (utf8_variable); 3370 if (!utf8_value) 3371 return NULL; 3372 value = g_locale_from_utf8 (utf8_value, -1, NULL, NULL, NULL); 3373 quark = g_quark_from_string (value); 3374 g_free (value); 3375 3376 return g_quark_to_string (quark); 3377 } 3378 3379 #undef g_setenv 3380 3381 gboolean 3382 g_setenv (const gchar *variable, 3383 const gchar *value, 3384 gboolean overwrite) 3385 { 3386 gchar *utf8_variable = g_locale_to_utf8 (variable, -1, NULL, NULL, NULL); 3387 gchar *utf8_value = g_locale_to_utf8 (value, -1, NULL, NULL, NULL); 3388 gboolean retval = g_setenv_utf8 (utf8_variable, utf8_value, overwrite); 3389 3390 g_free (utf8_variable); 3391 g_free (utf8_value); 3392 3393 return retval; 3394 } 3395 3396 #undef g_unsetenv 3397 3398 void 3399 g_unsetenv (const gchar *variable) 3400 { 3401 gchar *utf8_variable = g_locale_to_utf8 (variable, -1, NULL, NULL, NULL); 3402 3403 g_unsetenv_utf8 (utf8_variable); 3404 3405 g_free (utf8_variable); 3406 } 3407 3408 #undef g_get_user_name 3409 3410 G_CONST_RETURN gchar* 3411 g_get_user_name (void) 3412 { 3413 g_get_any_init_locked (); 3414 return g_user_name_cp; 3415 } 3416 3417 #undef g_get_real_name 3418 3419 G_CONST_RETURN gchar* 3420 g_get_real_name (void) 3421 { 3422 g_get_any_init_locked (); 3423 return g_real_name_cp; 3424 } 3425 3426 #undef g_get_home_dir 3427 3428 G_CONST_RETURN gchar* 3429 g_get_home_dir (void) 3430 { 3431 g_get_any_init_locked (); 3432 return g_home_dir_cp; 3433 } 3434 3435 #undef g_get_tmp_dir 3436 3437 G_CONST_RETURN gchar* 3438 g_get_tmp_dir (void) 3439 { 3440 g_get_any_init_locked (); 3441 return g_tmp_dir_cp; 3442 } 3443 3444 #endif 3445 3446 #define __G_UTILS_C__ 3447 #include "galiasdef.c" 3448
