1 /* GLIB - Library of useful routines for C programming
2 * Copyright (C) 1995-1998 Peter Mattis, Spencer Kimball and Josh MacDonald
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library 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.
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 * Library General Public License for more details.
14 * You should have received a copy of the GNU Library 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.
21 * MT safe for the unix part, FIXME: make the win32 part MT safe as well.
28 #include "glibconfig.h"
41 #include <sys/types.h>
42 #ifdef HAVE_SYS_PARAM_H
43 #include <sys/param.h>
47 # define STRICT /* Strict typing, please */
54 # endif /* _MSC_VER */
55 #endif /* NATIVE_WIN32 */
57 /* implement Glib's inline functions
59 #define G_INLINE_FUNC extern
60 #define G_CAN_INLINE 1
64 #define G_PATH_LENGTH (MAXPATHLEN + 1)
65 #elif defined (PATH_MAX)
66 #define G_PATH_LENGTH (PATH_MAX + 1)
67 #else /* !MAXPATHLEN */
68 #define G_PATH_LENGTH (2048 + 1)
69 #endif /* !MAXPATHLEN && !PATH_MAX */
71 const guint glib_major_version = GLIB_MAJOR_VERSION;
72 const guint glib_minor_version = GLIB_MINOR_VERSION;
73 const guint glib_micro_version = GLIB_MICRO_VERSION;
74 const guint glib_interface_age = GLIB_INTERFACE_AGE;
75 const guint glib_binary_age = GLIB_BINARY_AGE;
77 #if defined (NATIVE_WIN32) && defined (__LCC__)
79 LibMain (void *hinstDll,
80 unsigned long dwReason,
85 #endif /* NATIVE_WIN32 && __LCC__ */
88 g_atexit (GVoidFunc func)
93 /* keep this in sync with glib.h */
95 #ifdef G_NATIVE_ATEXIT
96 result = ATEXIT (func);
98 error = g_strerror (errno);
99 #elif defined (HAVE_ATEXIT)
100 # ifdef NeXT /* @#%@! NeXTStep */
101 result = !atexit ((void (*)(void)) func);
103 error = g_strerror (errno);
105 result = atexit ((void (*)(void)) func);
107 error = g_strerror (errno);
109 #elif defined (HAVE_ON_EXIT)
110 result = on_exit ((void (*)(int, void *)) func, NULL);
112 error = g_strerror (errno);
115 error = "no implementation";
116 #endif /* G_NATIVE_ATEXIT */
119 g_error ("Could not register atexit() function: %s", error);
123 g_snprintf (gchar *str,
128 #ifdef HAVE_VSNPRINTF
132 va_start (args, fmt);
133 retval = vsnprintf (str, n, fmt, args);
137 #else /* !HAVE_VSNPRINTF */
141 va_start (args, fmt);
142 printed = g_strdup_vprintf (fmt, args);
145 strncpy (str, printed, n);
151 #endif /* !HAVE_VSNPRINTF */
155 g_vsnprintf (gchar *str,
160 #ifdef HAVE_VSNPRINTF
163 retval = vsnprintf (str, n, fmt, args);
166 #else /* !HAVE_VSNPRINTF */
169 printed = g_strdup_vprintf (fmt, args);
170 strncpy (str, printed, n);
176 #endif /* !HAVE_VSNPRINTF */
180 g_parse_debug_string (const gchar *string,
187 g_return_val_if_fail (string != NULL, 0);
189 if (!g_strcasecmp (string, "all"))
191 for (i=0; i<nkeys; i++)
192 result |= keys[i].value;
196 gchar *str = g_strdup (string);
199 gboolean done = FALSE;
212 for (i=0; i<nkeys; i++)
213 if (!g_strcasecmp(keys[i].key, p))
214 result |= keys[i].value;
226 g_basename (const gchar *file_name)
228 register gchar *base;
230 g_return_val_if_fail (file_name != NULL, NULL);
232 base = strrchr (file_name, G_DIR_SEPARATOR);
237 if (isalpha (file_name[0]) && file_name[1] == ':')
238 return (gchar*) file_name + 2;
239 #endif /* NATIVE_WIN32 */
241 return (gchar*) file_name;
245 g_path_is_absolute (const gchar *file_name)
247 g_return_val_if_fail (file_name != NULL, FALSE);
249 if (file_name[0] == G_DIR_SEPARATOR)
253 if (isalpha (file_name[0]) && file_name[1] == ':' && file_name[2] == G_DIR_SEPARATOR)
261 g_path_skip_root (gchar *file_name)
263 g_return_val_if_fail (file_name != NULL, NULL);
265 if (file_name[0] == G_DIR_SEPARATOR)
266 return file_name + 1;
269 if (isalpha (file_name[0]) && file_name[1] == ':' && file_name[2] == G_DIR_SEPARATOR)
270 return file_name + 3;
277 g_dirname (const gchar *file_name)
279 register gchar *base;
282 g_return_val_if_fail (file_name != NULL, NULL);
284 base = strrchr (file_name, G_DIR_SEPARATOR);
286 return g_strdup (".");
287 while (base > file_name && *base == G_DIR_SEPARATOR)
289 len = (guint) 1 + base - file_name;
291 base = g_new (gchar, len + 1);
292 g_memmove (base, file_name, len);
299 g_get_current_dir (void)
304 buffer = g_new (gchar, G_PATH_LENGTH);
307 /* We don't use getcwd(3) on SUNOS, because, it does a popen("pwd")
308 * and, if that wasn't bad enough, hangs in doing so.
310 #if defined (sun) && !defined (__SVR4)
311 dir = getwd (buffer);
313 dir = getcwd (buffer, G_PATH_LENGTH - 1);
316 if (!dir || !*buffer)
318 /* hm, should we g_error() out here?
319 * this can happen if e.g. "./" has mode \0000
321 buffer[0] = G_DIR_SEPARATOR;
325 dir = g_strdup (buffer);
332 g_getenv (const gchar *variable)
335 g_return_val_if_fail (variable != NULL, NULL);
337 return getenv (variable);
341 static gchar *p = NULL;
345 g_return_val_if_fail (variable != NULL, NULL);
347 v = getenv (variable);
351 /* On Windows NT, it is relatively typical that environment variables
352 * contain references to other environment variables. Handle that by
353 * calling ExpandEnvironmentStrings.
356 /* First check how much space we need */
357 k = ExpandEnvironmentStrings (v, dummy, 2);
358 /* Then allocate that much, and actualy do the expansion */
366 p = g_realloc (p, k);
369 ExpandEnvironmentStrings (v, p, k);
375 G_LOCK_DEFINE_STATIC (g_utils_global);
377 static gchar *g_tmp_dir = NULL;
378 static gchar *g_user_name = NULL;
379 static gchar *g_real_name = NULL;
380 static gchar *g_home_dir = NULL;
382 /* HOLDS: g_utils_global_lock */
384 g_get_any_init (void)
388 g_tmp_dir = g_strdup (g_getenv ("TMPDIR"));
390 g_tmp_dir = g_strdup (g_getenv ("TMP"));
392 g_tmp_dir = g_strdup (g_getenv ("TEMP"));
398 g_tmp_dir = g_strdup (P_tmpdir);
399 k = strlen (g_tmp_dir);
400 if (g_tmp_dir[k-1] == G_DIR_SEPARATOR)
401 g_tmp_dir[k-1] = '\0';
408 g_tmp_dir = g_strdup ("/tmp");
409 #else /* NATIVE_WIN32 */
410 g_tmp_dir = g_strdup ("C:\\");
411 #endif /* NATIVE_WIN32 */
415 g_home_dir = g_strdup (g_getenv ("HOME"));
420 /* The official way to specify a home directory on NT is
421 * the HOMEDRIVE and HOMEPATH environment variables.
423 * This is inside #ifdef NATIVE_WIN32 because with the cygwin dll,
424 * HOME should be a POSIX style pathname.
427 if (getenv ("HOMEDRIVE") != NULL && getenv ("HOMEPATH") != NULL)
429 gchar *homedrive, *homepath;
431 homedrive = g_strdup (g_getenv ("HOMEDRIVE"));
432 homepath = g_strdup (g_getenv ("HOMEPATH"));
434 g_home_dir = g_strconcat (homedrive, homepath, NULL);
439 #endif /* !NATIVE_WIN32 */
443 struct passwd *pw = NULL;
444 gpointer buffer = NULL;
446 # ifdef HAVE_GETPWUID_R
454 buffer = g_malloc (bufsize);
457 # ifdef HAVE_GETPWUID_R_POSIX
458 error = getpwuid_r (getuid (), &pwd, buffer, bufsize, &pw);
459 error = error < 0 ? errno : error;
460 # else /* !HAVE_GETPWUID_R_POSIX */
461 pw = getpwuid_r (getuid (), &pwd, buffer, bufsize);
462 error = pw ? 0 : errno;
463 # endif /* !HAVE_GETPWUID_R_POSIX */
467 /* we bail out prematurely if the user id can't be found
468 * (should be pretty rare case actually), or if the buffer
469 * should be sufficiently big and lookups are still not
472 if (error == 0 || error == ENOENT)
474 g_warning ("getpwuid_r(): failed due to: No such user %d.",
478 if (bufsize > 32 * 1024)
480 g_warning ("getpwuid_r(): failed due to: %s.",
489 # endif /* !HAVE_GETPWUID_R */
494 pw = getpwuid (getuid ());
499 g_user_name = g_strdup (pw->pw_name);
500 g_real_name = g_strdup (pw->pw_gecos);
502 g_home_dir = g_strdup (pw->pw_dir);
507 #else /* !HAVE_PWD_H */
514 if (GetUserName (buffer, &len))
516 g_user_name = g_strdup (buffer);
517 g_real_name = g_strdup (buffer);
520 # endif /* NATIVE_WIN32 */
522 #endif /* !HAVE_PWD_H */
525 g_user_name = g_strdup ("somebody");
527 g_real_name = g_strdup ("Unknown");
532 for (p = g_real_name; *p; p++)
536 p = g_strdup (g_real_name);
537 g_free (g_real_name);
546 g_get_user_name (void)
548 G_LOCK (g_utils_global);
551 G_UNLOCK (g_utils_global);
557 g_get_real_name (void)
559 G_LOCK (g_utils_global);
562 G_UNLOCK (g_utils_global);
567 /* Return the home directory of the user. If there is a HOME
568 * environment variable, its value is returned, otherwise use some
569 * system-dependent way of finding it out. If no home directory can be
570 * deduced, return NULL.
574 g_get_home_dir (void)
576 G_LOCK (g_utils_global);
579 G_UNLOCK (g_utils_global);
584 /* Return a directory to be used to store temporary files. This is the
585 * value of the TMPDIR, TMP or TEMP environment variables (they are
586 * checked in that order). If none of those exist, use P_tmpdir from
587 * stdio.h. If that isn't defined, return "/tmp" on POSIXly systems,
588 * and C:\ on Windows.
594 G_LOCK (g_utils_global);
597 G_UNLOCK (g_utils_global);
602 static gchar *g_prgname = NULL;
609 G_LOCK (g_utils_global);
611 G_UNLOCK (g_utils_global);
617 g_set_prgname (const gchar *prgname)
621 G_LOCK (g_utils_global);
623 g_prgname = g_strdup (prgname);
625 G_UNLOCK (g_utils_global);
629 g_direct_hash (gconstpointer v)
631 return GPOINTER_TO_UINT (v);
635 g_direct_equal (gconstpointer v1,
642 g_int_equal (gconstpointer v1,
645 return *((const gint*) v1) == *((const gint*) v2);
649 g_int_hash (gconstpointer v)
651 return *(const gint*) v;
654 #if 0 /* Old IO Channels */
657 g_iochannel_new (gint fd)
659 GIOChannel *channel = g_new (GIOChannel, 1);
665 channel->peer_fd = 0;
667 channel->need_wakeups = 0;
668 #endif /* NATIVE_WIN32 */
674 g_iochannel_free (GIOChannel *channel)
676 g_return_if_fail (channel != NULL);
682 g_iochannel_close_and_free (GIOChannel *channel)
684 g_return_if_fail (channel != NULL);
688 g_iochannel_free (channel);
691 #undef g_iochannel_wakeup_peer
694 g_iochannel_wakeup_peer (GIOChannel *channel)
697 static guint message = 0;
700 g_return_if_fail (channel != NULL);
704 message = RegisterWindowMessage ("gdk-pipe-readable");
707 g_print ("g_iochannel_wakeup_peer: calling PostThreadMessage (%#x, %d, %d, %d)\n",
708 channel->peer, message, channel->peer_fd, channel->offset);
710 PostThreadMessage (channel->peer, message,
711 channel->peer_fd, channel->offset);
712 #endif /* NATIVE_WIN32 */
715 #endif /* Old IO Channels */
721 gwin_ftruncate (gint fd,
727 g_return_val_if_fail (fd >= 0, -1);
729 hfile = (HANDLE) _get_osfhandle (fd);
730 curpos = SetFilePointer (hfile, 0, NULL, FILE_CURRENT);
731 if (curpos == 0xFFFFFFFF
732 || SetFilePointer (hfile, size, NULL, FILE_BEGIN) == 0xFFFFFFFF
733 || !SetEndOfFile (hfile))
735 gint error = GetLastError ();
739 case ERROR_INVALID_HANDLE:
754 gwin_opendir (const char *dirname)
760 g_return_val_if_fail (dirname != NULL, NULL);
762 result = g_new0 (DIR, 1);
763 result->find_file_data = g_new0 (WIN32_FIND_DATA, 1);
764 result->dir_name = g_strdup (dirname);
766 k = strlen (result->dir_name);
767 if (k && result->dir_name[k - 1] == '\\')
769 result->dir_name[k - 1] = '\0';
772 mask = g_strdup_printf ("%s\\*", result->dir_name);
774 result->find_file_handle = (guint) FindFirstFile (mask,
775 (LPWIN32_FIND_DATA) result->find_file_data);
778 if (result->find_file_handle == (guint) INVALID_HANDLE_VALUE)
780 int error = GetLastError ();
782 g_free (result->dir_name);
783 g_free (result->find_file_data);
792 result->just_opened = TRUE;
798 gwin_readdir (DIR *dir)
800 static struct dirent result;
802 g_return_val_if_fail (dir != NULL, NULL);
804 if (dir->just_opened)
805 dir->just_opened = FALSE;
808 if (!FindNextFile ((HANDLE) dir->find_file_handle,
809 (LPWIN32_FIND_DATA) dir->find_file_data))
811 int error = GetLastError ();
815 case ERROR_NO_MORE_FILES:
823 strcpy (result.d_name, g_basename (((LPWIN32_FIND_DATA) dir->find_file_data)->cFileName));
829 gwin_rewinddir (DIR *dir)
833 g_return_if_fail (dir != NULL);
835 if (!FindClose ((HANDLE) dir->find_file_handle))
836 g_warning ("gwin_rewinddir(): FindClose() failed\n");
838 mask = g_strdup_printf ("%s\\*", dir->dir_name);
839 dir->find_file_handle = (guint) FindFirstFile (mask,
840 (LPWIN32_FIND_DATA) dir->find_file_data);
843 if (dir->find_file_handle == (guint) INVALID_HANDLE_VALUE)
845 int error = GetLastError ();
854 dir->just_opened = TRUE;
858 gwin_closedir (DIR *dir)
860 g_return_val_if_fail (dir != NULL, -1);
862 if (!FindClose ((HANDLE) dir->find_file_handle))
864 int error = GetLastError ();
869 errno = EIO; return -1;
873 g_free (dir->dir_name);
874 g_free (dir->find_file_data);
880 #endif /* _MSC_VER */
882 #endif /* NATIVE_WIN32 */