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3111 lines
92 KiB
C
3111 lines
92 KiB
C
/* GLIB - Library of useful routines for C programming
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* Copyright (C) 1995-1998 Peter Mattis, Spencer Kimball and Josh MacDonald
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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* Modified by the GLib Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GLib Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GLib at ftp://ftp.gtk.org/pub/gtk/.
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*/
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/*
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* MT safe for the unix part, FIXME: make the win32 part MT safe as well.
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*/
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#include "config.h"
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#include "gutils.h"
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#include "gutilsprivate.h"
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#include <stdarg.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <locale.h>
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#include <string.h>
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#include <ctype.h> /* For tolower() */
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#include <errno.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#ifdef G_OS_UNIX
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#include <pwd.h>
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#include <sys/utsname.h>
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#include <unistd.h>
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#endif
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#include <sys/types.h>
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#ifdef HAVE_SYS_PARAM_H
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#include <sys/param.h>
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#endif
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#ifdef HAVE_CRT_EXTERNS_H
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#include <crt_externs.h> /* for _NSGetEnviron */
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#endif
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#ifdef HAVE_SYS_AUXV_H
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#include <sys/auxv.h>
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#endif
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#include "glib-init.h"
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#include "glib-private.h"
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#include "genviron.h"
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#include "gfileutils.h"
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#include "ggettext.h"
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#include "ghash.h"
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#include "gthread.h"
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#include "gtestutils.h"
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#include "gunicode.h"
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#include "gstrfuncs.h"
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#include "garray.h"
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#include "glibintl.h"
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#include "gstdio.h"
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#ifdef G_PLATFORM_WIN32
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#include "gconvert.h"
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#include "gwin32.h"
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#endif
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/**
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* SECTION:misc_utils
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* @title: Miscellaneous Utility Functions
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* @short_description: a selection of portable utility functions
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*
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* These are portable utility functions.
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*/
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#ifdef G_PLATFORM_WIN32
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# include <windows.h>
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# ifndef GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS
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# define GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT 2
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# define GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS 4
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# endif
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# include <lmcons.h> /* For UNLEN */
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#endif /* G_PLATFORM_WIN32 */
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#ifdef G_OS_WIN32
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# include <direct.h>
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# include <shlobj.h>
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# include <process.h>
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#endif
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#ifdef HAVE_CODESET
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#include <langinfo.h>
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#endif
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#ifdef G_PLATFORM_WIN32
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gchar *
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_glib_get_dll_directory (void)
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{
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gchar *retval;
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gchar *p;
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wchar_t wc_fn[MAX_PATH];
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#ifdef DLL_EXPORT
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if (glib_dll == NULL)
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return NULL;
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#endif
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/* This code is different from that in
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* g_win32_get_package_installation_directory_of_module() in that
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* here we return the actual folder where the GLib DLL is. We don't
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* do the check for it being in a "bin" or "lib" subfolder and then
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* returning the parent of that.
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*
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* In a statically built GLib, glib_dll will be NULL and we will
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* thus look up the application's .exe file's location.
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*/
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if (!GetModuleFileNameW (glib_dll, wc_fn, MAX_PATH))
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return NULL;
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retval = g_utf16_to_utf8 (wc_fn, -1, NULL, NULL, NULL);
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p = strrchr (retval, G_DIR_SEPARATOR);
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if (p == NULL)
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{
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/* Wtf? */
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return NULL;
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}
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*p = '\0';
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return retval;
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}
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#endif
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/**
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* g_memmove:
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* @dest: the destination address to copy the bytes to.
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* @src: the source address to copy the bytes from.
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* @len: the number of bytes to copy.
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*
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* Copies a block of memory @len bytes long, from @src to @dest.
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* The source and destination areas may overlap.
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*
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* Deprecated:2.40: Just use memmove().
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*/
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#ifdef G_OS_WIN32
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#undef g_atexit
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#endif
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/**
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* g_atexit:
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* @func: (scope async): the function to call on normal program termination.
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*
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* Specifies a function to be called at normal program termination.
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*
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* Since GLib 2.8.2, on Windows g_atexit() actually is a preprocessor
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* macro that maps to a call to the atexit() function in the C
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* library. This means that in case the code that calls g_atexit(),
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* i.e. atexit(), is in a DLL, the function will be called when the
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* DLL is detached from the program. This typically makes more sense
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* than that the function is called when the GLib DLL is detached,
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* which happened earlier when g_atexit() was a function in the GLib
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* DLL.
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*
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* The behaviour of atexit() in the context of dynamically loaded
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* modules is not formally specified and varies wildly.
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*
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* On POSIX systems, calling g_atexit() (or atexit()) in a dynamically
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* loaded module which is unloaded before the program terminates might
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* well cause a crash at program exit.
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*
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* Some POSIX systems implement atexit() like Windows, and have each
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* dynamically loaded module maintain an own atexit chain that is
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* called when the module is unloaded.
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*
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* On other POSIX systems, before a dynamically loaded module is
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* unloaded, the registered atexit functions (if any) residing in that
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* module are called, regardless where the code that registered them
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* resided. This is presumably the most robust approach.
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*
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* As can be seen from the above, for portability it's best to avoid
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* calling g_atexit() (or atexit()) except in the main executable of a
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* program.
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*
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* Deprecated:2.32: It is best to avoid g_atexit().
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*/
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G_GNUC_BEGIN_IGNORE_DEPRECATIONS
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void
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g_atexit (GVoidFunc func)
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{
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gint result;
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int errsv;
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result = atexit ((void (*)(void)) func);
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errsv = errno;
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if (result)
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{
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g_error ("Could not register atexit() function: %s",
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g_strerror (errsv));
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}
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}
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G_GNUC_END_IGNORE_DEPRECATIONS
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/* Based on execvp() from GNU Libc.
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* Some of this code is cut-and-pasted into gspawn.c
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*/
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static gchar*
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my_strchrnul (const gchar *str,
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gchar c)
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{
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gchar *p = (gchar*)str;
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while (*p && (*p != c))
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++p;
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return p;
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}
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#ifdef G_OS_WIN32
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static gchar *inner_find_program_in_path (const gchar *program);
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gchar*
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g_find_program_in_path (const gchar *program)
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{
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const gchar *last_dot = strrchr (program, '.');
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if (last_dot == NULL ||
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strchr (last_dot, '\\') != NULL ||
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strchr (last_dot, '/') != NULL)
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{
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const gint program_length = strlen (program);
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gchar *pathext = g_build_path (";",
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".exe;.cmd;.bat;.com",
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g_getenv ("PATHEXT"),
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NULL);
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gchar *p;
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gchar *decorated_program;
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gchar *retval;
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p = pathext;
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do
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{
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gchar *q = my_strchrnul (p, ';');
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decorated_program = g_malloc (program_length + (q-p) + 1);
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memcpy (decorated_program, program, program_length);
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memcpy (decorated_program+program_length, p, q-p);
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decorated_program [program_length + (q-p)] = '\0';
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retval = inner_find_program_in_path (decorated_program);
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g_free (decorated_program);
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if (retval != NULL)
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{
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g_free (pathext);
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return retval;
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}
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p = q;
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} while (*p++ != '\0');
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g_free (pathext);
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return NULL;
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}
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else
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return inner_find_program_in_path (program);
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}
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#endif
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/**
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* g_find_program_in_path:
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* @program: (type filename): a program name in the GLib file name encoding
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*
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* Locates the first executable named @program in the user's path, in the
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* same way that execvp() would locate it. Returns an allocated string
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* with the absolute path name, or %NULL if the program is not found in
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* the path. If @program is already an absolute path, returns a copy of
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* @program if @program exists and is executable, and %NULL otherwise.
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*
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* On Windows, if @program does not have a file type suffix, tries
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* with the suffixes .exe, .cmd, .bat and .com, and the suffixes in
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* the `PATHEXT` environment variable.
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*
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* On Windows, it looks for the file in the same way as CreateProcess()
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* would. This means first in the directory where the executing
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* program was loaded from, then in the current directory, then in the
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* Windows 32-bit system directory, then in the Windows directory, and
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* finally in the directories in the `PATH` environment variable. If
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* the program is found, the return value contains the full name
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* including the type suffix.
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*
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* Returns: (type filename) (transfer full) (nullable): a newly-allocated
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* string with the absolute path, or %NULL
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**/
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#ifdef G_OS_WIN32
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static gchar *
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inner_find_program_in_path (const gchar *program)
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#else
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gchar*
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g_find_program_in_path (const gchar *program)
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#endif
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{
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const gchar *path, *p;
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gchar *name, *freeme;
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#ifdef G_OS_WIN32
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const gchar *path_copy;
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gchar *filename = NULL, *appdir = NULL;
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gchar *sysdir = NULL, *windir = NULL;
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int n;
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wchar_t wfilename[MAXPATHLEN], wsysdir[MAXPATHLEN],
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wwindir[MAXPATHLEN];
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#endif
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gsize len;
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gsize pathlen;
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g_return_val_if_fail (program != NULL, NULL);
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/* If it is an absolute path, or a relative path including subdirectories,
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* don't look in PATH.
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*/
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if (g_path_is_absolute (program)
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|| strchr (program, G_DIR_SEPARATOR) != NULL
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#ifdef G_OS_WIN32
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|| strchr (program, '/') != NULL
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#endif
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)
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{
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if (g_file_test (program, G_FILE_TEST_IS_EXECUTABLE) &&
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!g_file_test (program, G_FILE_TEST_IS_DIR))
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return g_strdup (program);
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else
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return NULL;
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}
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path = g_getenv ("PATH");
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#if defined(G_OS_UNIX)
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if (path == NULL)
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{
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/* There is no 'PATH' in the environment. The default
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* search path in GNU libc is the current directory followed by
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* the path 'confstr' returns for '_CS_PATH'.
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*/
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/* In GLib we put . last, for security, and don't use the
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* unportable confstr(); UNIX98 does not actually specify
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* what to search if PATH is unset. POSIX may, dunno.
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*/
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path = "/bin:/usr/bin:.";
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}
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#else
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n = GetModuleFileNameW (NULL, wfilename, MAXPATHLEN);
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if (n > 0 && n < MAXPATHLEN)
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filename = g_utf16_to_utf8 (wfilename, -1, NULL, NULL, NULL);
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n = GetSystemDirectoryW (wsysdir, MAXPATHLEN);
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if (n > 0 && n < MAXPATHLEN)
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sysdir = g_utf16_to_utf8 (wsysdir, -1, NULL, NULL, NULL);
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n = GetWindowsDirectoryW (wwindir, MAXPATHLEN);
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if (n > 0 && n < MAXPATHLEN)
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windir = g_utf16_to_utf8 (wwindir, -1, NULL, NULL, NULL);
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if (filename)
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{
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appdir = g_path_get_dirname (filename);
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g_free (filename);
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}
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path = g_strdup (path);
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if (windir)
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{
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const gchar *tem = path;
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path = g_strconcat (windir, ";", path, NULL);
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g_free ((gchar *) tem);
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g_free (windir);
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}
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if (sysdir)
|
||
{
|
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const gchar *tem = path;
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path = g_strconcat (sysdir, ";", path, NULL);
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g_free ((gchar *) tem);
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g_free (sysdir);
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||
}
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||
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||
{
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||
const gchar *tem = path;
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||
path = g_strconcat (".;", path, NULL);
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||
g_free ((gchar *) tem);
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||
}
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||
|
||
if (appdir)
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||
{
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||
const gchar *tem = path;
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path = g_strconcat (appdir, ";", path, NULL);
|
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g_free ((gchar *) tem);
|
||
g_free (appdir);
|
||
}
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path_copy = path;
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||
#endif
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||
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len = strlen (program) + 1;
|
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pathlen = strlen (path);
|
||
freeme = name = g_malloc (pathlen + len + 1);
|
||
|
||
/* Copy the file name at the top, including '\0' */
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memcpy (name + pathlen + 1, program, len);
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||
name = name + pathlen;
|
||
/* And add the slash before the filename */
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||
*name = G_DIR_SEPARATOR;
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||
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||
p = path;
|
||
do
|
||
{
|
||
char *startp;
|
||
|
||
path = p;
|
||
p = my_strchrnul (path, G_SEARCHPATH_SEPARATOR);
|
||
|
||
if (p == path)
|
||
/* Two adjacent colons, or a colon at the beginning or the end
|
||
* of 'PATH' means to search the current directory.
|
||
*/
|
||
startp = name + 1;
|
||
else
|
||
startp = memcpy (name - (p - path), path, p - path);
|
||
|
||
if (g_file_test (startp, G_FILE_TEST_IS_EXECUTABLE) &&
|
||
!g_file_test (startp, G_FILE_TEST_IS_DIR))
|
||
{
|
||
gchar *ret;
|
||
ret = g_strdup (startp);
|
||
g_free (freeme);
|
||
#ifdef G_OS_WIN32
|
||
g_free ((gchar *) path_copy);
|
||
#endif
|
||
return ret;
|
||
}
|
||
}
|
||
while (*p++ != '\0');
|
||
|
||
g_free (freeme);
|
||
#ifdef G_OS_WIN32
|
||
g_free ((gchar *) path_copy);
|
||
#endif
|
||
|
||
return NULL;
|
||
}
|
||
|
||
/* The functions below are defined this way for compatibility reasons.
|
||
* See the note in gutils.h.
|
||
*/
|
||
|
||
/**
|
||
* g_bit_nth_lsf:
|
||
* @mask: a #gulong containing flags
|
||
* @nth_bit: the index of the bit to start the search from
|
||
*
|
||
* Find the position of the first bit set in @mask, searching
|
||
* from (but not including) @nth_bit upwards. Bits are numbered
|
||
* from 0 (least significant) to sizeof(#gulong) * 8 - 1 (31 or 63,
|
||
* usually). To start searching from the 0th bit, set @nth_bit to -1.
|
||
*
|
||
* Returns: the index of the first bit set which is higher than @nth_bit, or -1
|
||
* if no higher bits are set
|
||
*/
|
||
gint
|
||
(g_bit_nth_lsf) (gulong mask,
|
||
gint nth_bit)
|
||
{
|
||
return g_bit_nth_lsf_impl (mask, nth_bit);
|
||
}
|
||
|
||
/**
|
||
* g_bit_nth_msf:
|
||
* @mask: a #gulong containing flags
|
||
* @nth_bit: the index of the bit to start the search from
|
||
*
|
||
* Find the position of the first bit set in @mask, searching
|
||
* from (but not including) @nth_bit downwards. Bits are numbered
|
||
* from 0 (least significant) to sizeof(#gulong) * 8 - 1 (31 or 63,
|
||
* usually). To start searching from the last bit, set @nth_bit to
|
||
* -1 or GLIB_SIZEOF_LONG * 8.
|
||
*
|
||
* Returns: the index of the first bit set which is lower than @nth_bit, or -1
|
||
* if no lower bits are set
|
||
*/
|
||
gint
|
||
(g_bit_nth_msf) (gulong mask,
|
||
gint nth_bit)
|
||
{
|
||
return g_bit_nth_msf_impl (mask, nth_bit);
|
||
}
|
||
|
||
|
||
/**
|
||
* g_bit_storage:
|
||
* @number: a #guint
|
||
*
|
||
* Gets the number of bits used to hold @number,
|
||
* e.g. if @number is 4, 3 bits are needed.
|
||
*
|
||
* Returns: the number of bits used to hold @number
|
||
*/
|
||
guint
|
||
(g_bit_storage) (gulong number)
|
||
{
|
||
return g_bit_storage_impl (number);
|
||
}
|
||
|
||
G_LOCK_DEFINE_STATIC (g_utils_global);
|
||
|
||
typedef struct
|
||
{
|
||
gchar *user_name;
|
||
gchar *real_name;
|
||
gchar *home_dir;
|
||
} UserDatabaseEntry;
|
||
|
||
/* These must all be read/written with @g_utils_global held. */
|
||
static gchar *g_user_data_dir = NULL;
|
||
static gchar **g_system_data_dirs = NULL;
|
||
static gchar *g_user_cache_dir = NULL;
|
||
static gchar *g_user_config_dir = NULL;
|
||
static gchar *g_user_runtime_dir = NULL;
|
||
static gchar **g_system_config_dirs = NULL;
|
||
static gchar **g_user_special_dirs = NULL;
|
||
|
||
/* fifteen minutes of fame for everybody */
|
||
#define G_USER_DIRS_EXPIRE 15 * 60
|
||
|
||
#ifdef G_OS_WIN32
|
||
|
||
static gchar *
|
||
get_special_folder (int csidl)
|
||
{
|
||
wchar_t path[MAX_PATH+1];
|
||
HRESULT hr;
|
||
LPITEMIDLIST pidl = NULL;
|
||
BOOL b;
|
||
gchar *retval = NULL;
|
||
|
||
hr = SHGetSpecialFolderLocation (NULL, csidl, &pidl);
|
||
if (hr == S_OK)
|
||
{
|
||
b = SHGetPathFromIDListW (pidl, path);
|
||
if (b)
|
||
retval = g_utf16_to_utf8 (path, -1, NULL, NULL, NULL);
|
||
CoTaskMemFree (pidl);
|
||
}
|
||
return retval;
|
||
}
|
||
|
||
static char *
|
||
get_windows_directory_root (void)
|
||
{
|
||
wchar_t wwindowsdir[MAX_PATH];
|
||
|
||
if (GetWindowsDirectoryW (wwindowsdir, G_N_ELEMENTS (wwindowsdir)))
|
||
{
|
||
/* Usually X:\Windows, but in terminal server environments
|
||
* might be an UNC path, AFAIK.
|
||
*/
|
||
char *windowsdir = g_utf16_to_utf8 (wwindowsdir, -1, NULL, NULL, NULL);
|
||
char *p;
|
||
|
||
if (windowsdir == NULL)
|
||
return g_strdup ("C:\\");
|
||
|
||
p = (char *) g_path_skip_root (windowsdir);
|
||
if (G_IS_DIR_SEPARATOR (p[-1]) && p[-2] != ':')
|
||
p--;
|
||
*p = '\0';
|
||
return windowsdir;
|
||
}
|
||
else
|
||
return g_strdup ("C:\\");
|
||
}
|
||
|
||
#endif
|
||
|
||
/* HOLDS: g_utils_global_lock */
|
||
static UserDatabaseEntry *
|
||
g_get_user_database_entry (void)
|
||
{
|
||
static UserDatabaseEntry *entry;
|
||
|
||
if (g_once_init_enter (&entry))
|
||
{
|
||
static UserDatabaseEntry e;
|
||
|
||
#ifdef G_OS_UNIX
|
||
{
|
||
struct passwd *pw = NULL;
|
||
gpointer buffer = NULL;
|
||
gint error;
|
||
gchar *logname;
|
||
|
||
# if defined (HAVE_GETPWUID_R)
|
||
struct passwd pwd;
|
||
# ifdef _SC_GETPW_R_SIZE_MAX
|
||
/* This reurns the maximum length */
|
||
glong bufsize = sysconf (_SC_GETPW_R_SIZE_MAX);
|
||
|
||
if (bufsize < 0)
|
||
bufsize = 64;
|
||
# else /* _SC_GETPW_R_SIZE_MAX */
|
||
glong bufsize = 64;
|
||
# endif /* _SC_GETPW_R_SIZE_MAX */
|
||
|
||
logname = (gchar *) g_getenv ("LOGNAME");
|
||
|
||
do
|
||
{
|
||
g_free (buffer);
|
||
/* we allocate 6 extra bytes to work around a bug in
|
||
* Mac OS < 10.3. See #156446
|
||
*/
|
||
buffer = g_malloc (bufsize + 6);
|
||
errno = 0;
|
||
|
||
if (logname) {
|
||
error = getpwnam_r (logname, &pwd, buffer, bufsize, &pw);
|
||
if (!pw || (pw->pw_uid != getuid ())) {
|
||
/* LOGNAME is lying, fall back to looking up the uid */
|
||
error = getpwuid_r (getuid (), &pwd, buffer, bufsize, &pw);
|
||
}
|
||
} else {
|
||
error = getpwuid_r (getuid (), &pwd, buffer, bufsize, &pw);
|
||
}
|
||
error = error < 0 ? errno : error;
|
||
|
||
if (!pw)
|
||
{
|
||
/* we bail out prematurely if the user id can't be found
|
||
* (should be pretty rare case actually), or if the buffer
|
||
* should be sufficiently big and lookups are still not
|
||
* successful.
|
||
*/
|
||
if (error == 0 || error == ENOENT)
|
||
{
|
||
g_warning ("getpwuid_r(): failed due to unknown user id (%lu)",
|
||
(gulong) getuid ());
|
||
break;
|
||
}
|
||
if (bufsize > 32 * 1024)
|
||
{
|
||
g_warning ("getpwuid_r(): failed due to: %s.",
|
||
g_strerror (error));
|
||
break;
|
||
}
|
||
|
||
bufsize *= 2;
|
||
}
|
||
}
|
||
while (!pw);
|
||
# endif /* HAVE_GETPWUID_R */
|
||
|
||
if (!pw)
|
||
{
|
||
pw = getpwuid (getuid ());
|
||
}
|
||
if (pw)
|
||
{
|
||
e.user_name = g_strdup (pw->pw_name);
|
||
|
||
#ifndef __BIONIC__
|
||
if (pw->pw_gecos && *pw->pw_gecos != '\0' && pw->pw_name)
|
||
{
|
||
gchar **gecos_fields;
|
||
gchar **name_parts;
|
||
|
||
/* split the gecos field and substitute '&' */
|
||
gecos_fields = g_strsplit (pw->pw_gecos, ",", 0);
|
||
name_parts = g_strsplit (gecos_fields[0], "&", 0);
|
||
pw->pw_name[0] = g_ascii_toupper (pw->pw_name[0]);
|
||
e.real_name = g_strjoinv (pw->pw_name, name_parts);
|
||
g_strfreev (gecos_fields);
|
||
g_strfreev (name_parts);
|
||
}
|
||
#endif
|
||
|
||
if (!e.home_dir)
|
||
e.home_dir = g_strdup (pw->pw_dir);
|
||
}
|
||
g_free (buffer);
|
||
}
|
||
|
||
#endif /* G_OS_UNIX */
|
||
|
||
#ifdef G_OS_WIN32
|
||
{
|
||
guint len = UNLEN+1;
|
||
wchar_t buffer[UNLEN+1];
|
||
|
||
if (GetUserNameW (buffer, (LPDWORD) &len))
|
||
{
|
||
e.user_name = g_utf16_to_utf8 (buffer, -1, NULL, NULL, NULL);
|
||
e.real_name = g_strdup (e.user_name);
|
||
}
|
||
}
|
||
#endif /* G_OS_WIN32 */
|
||
|
||
if (!e.user_name)
|
||
e.user_name = g_strdup ("somebody");
|
||
if (!e.real_name)
|
||
e.real_name = g_strdup ("Unknown");
|
||
|
||
g_once_init_leave (&entry, &e);
|
||
}
|
||
|
||
return entry;
|
||
}
|
||
|
||
/**
|
||
* g_get_user_name:
|
||
*
|
||
* Gets the user name of the current user. The encoding of the returned
|
||
* string is system-defined. On UNIX, it might be the preferred file name
|
||
* encoding, or something else, and there is no guarantee that it is even
|
||
* consistent on a machine. On Windows, it is always UTF-8.
|
||
*
|
||
* Returns: (type filename) (transfer none): the user name of the current user.
|
||
*/
|
||
const gchar *
|
||
g_get_user_name (void)
|
||
{
|
||
UserDatabaseEntry *entry;
|
||
|
||
entry = g_get_user_database_entry ();
|
||
|
||
return entry->user_name;
|
||
}
|
||
|
||
/**
|
||
* g_get_real_name:
|
||
*
|
||
* Gets the real name of the user. This usually comes from the user's
|
||
* entry in the `passwd` file. The encoding of the returned string is
|
||
* system-defined. (On Windows, it is, however, always UTF-8.) If the
|
||
* real user name cannot be determined, the string "Unknown" is
|
||
* returned.
|
||
*
|
||
* Returns: (type filename) (transfer none): the user's real name.
|
||
*/
|
||
const gchar *
|
||
g_get_real_name (void)
|
||
{
|
||
UserDatabaseEntry *entry;
|
||
|
||
entry = g_get_user_database_entry ();
|
||
|
||
return entry->real_name;
|
||
}
|
||
|
||
/* Protected by @g_utils_global_lock. */
|
||
static gchar *g_home_dir = NULL; /* (owned) (nullable before initialised) */
|
||
|
||
static gchar *
|
||
g_build_home_dir (void)
|
||
{
|
||
gchar *home_dir;
|
||
|
||
/* We first check HOME and use it if it is set */
|
||
home_dir = g_strdup (g_getenv ("HOME"));
|
||
|
||
#ifdef G_OS_WIN32
|
||
/* Only believe HOME if it is an absolute path and exists.
|
||
*
|
||
* We only do this check on Windows for a couple of reasons.
|
||
* Historically, we only did it there because we used to ignore $HOME
|
||
* on UNIX. There are concerns about enabling it now on UNIX because
|
||
* of things like autofs. In short, if the user has a bogus value in
|
||
* $HOME then they get what they pay for...
|
||
*/
|
||
if (home_dir != NULL)
|
||
{
|
||
if (!(g_path_is_absolute (home_dir) &&
|
||
g_file_test (home_dir, G_FILE_TEST_IS_DIR)))
|
||
g_clear_pointer (&home_dir, g_free);
|
||
}
|
||
|
||
/* In case HOME is Unix-style (it happens), convert it to
|
||
* Windows style.
|
||
*/
|
||
if (home_dir != NULL)
|
||
{
|
||
gchar *p;
|
||
while ((p = strchr (home_dir, '/')) != NULL)
|
||
*p = '\\';
|
||
}
|
||
|
||
if (home_dir == NULL)
|
||
{
|
||
/* USERPROFILE is probably the closest equivalent to $HOME? */
|
||
if (g_getenv ("USERPROFILE") != NULL)
|
||
home_dir = g_strdup (g_getenv ("USERPROFILE"));
|
||
}
|
||
|
||
if (home_dir == NULL)
|
||
home_dir = get_special_folder (CSIDL_PROFILE);
|
||
|
||
if (home_dir == NULL)
|
||
home_dir = get_windows_directory_root ();
|
||
#endif /* G_OS_WIN32 */
|
||
|
||
if (home_dir == NULL)
|
||
{
|
||
/* If we didn't get it from any of those methods, we will have
|
||
* to read the user database entry.
|
||
*/
|
||
UserDatabaseEntry *entry = g_get_user_database_entry ();
|
||
home_dir = g_strdup (entry->home_dir);
|
||
}
|
||
|
||
/* If we have been denied access to /etc/passwd (for example, by an
|
||
* overly-zealous LSM), make up a junk value. The return value at this
|
||
* point is explicitly documented as ‘undefined’. */
|
||
if (home_dir == NULL)
|
||
{
|
||
g_warning ("Could not find home directory: $HOME is not set, and "
|
||
"user database could not be read.");
|
||
home_dir = g_strdup ("/");
|
||
}
|
||
|
||
return g_steal_pointer (&home_dir);
|
||
}
|
||
|
||
/**
|
||
* g_get_home_dir:
|
||
*
|
||
* Gets the current user's home directory.
|
||
*
|
||
* As with most UNIX tools, this function will return the value of the
|
||
* `HOME` environment variable if it is set to an existing absolute path
|
||
* name, falling back to the `passwd` file in the case that it is unset.
|
||
*
|
||
* If the path given in `HOME` is non-absolute, does not exist, or is
|
||
* not a directory, the result is undefined.
|
||
*
|
||
* Before version 2.36 this function would ignore the `HOME` environment
|
||
* variable, taking the value from the `passwd` database instead. This was
|
||
* changed to increase the compatibility of GLib with other programs (and
|
||
* the XDG basedir specification) and to increase testability of programs
|
||
* based on GLib (by making it easier to run them from test frameworks).
|
||
*
|
||
* If your program has a strong requirement for either the new or the
|
||
* old behaviour (and if you don't wish to increase your GLib
|
||
* dependency to ensure that the new behaviour is in effect) then you
|
||
* should either directly check the `HOME` environment variable yourself
|
||
* or unset it before calling any functions in GLib.
|
||
*
|
||
* Returns: (type filename) (transfer none): the current user's home directory
|
||
*/
|
||
const gchar *
|
||
g_get_home_dir (void)
|
||
{
|
||
const gchar *home_dir;
|
||
|
||
G_LOCK (g_utils_global);
|
||
|
||
if (g_home_dir == NULL)
|
||
g_home_dir = g_build_home_dir ();
|
||
home_dir = g_home_dir;
|
||
|
||
G_UNLOCK (g_utils_global);
|
||
|
||
return home_dir;
|
||
}
|
||
|
||
/**
|
||
* g_get_tmp_dir:
|
||
*
|
||
* Gets the directory to use for temporary files.
|
||
*
|
||
* On UNIX, this is taken from the `TMPDIR` environment variable.
|
||
* If the variable is not set, `P_tmpdir` is
|
||
* used, as defined by the system C library. Failing that, a
|
||
* hard-coded default of "/tmp" is returned.
|
||
*
|
||
* On Windows, the `TEMP` environment variable is used, with the
|
||
* root directory of the Windows installation (eg: "C:\") used
|
||
* as a default.
|
||
*
|
||
* The encoding of the returned string is system-defined. On Windows,
|
||
* it is always UTF-8. The return value is never %NULL or the empty
|
||
* string.
|
||
*
|
||
* Returns: (type filename) (transfer none): the directory to use for temporary files.
|
||
*/
|
||
const gchar *
|
||
g_get_tmp_dir (void)
|
||
{
|
||
static gchar *tmp_dir;
|
||
|
||
if (g_once_init_enter (&tmp_dir))
|
||
{
|
||
gchar *tmp;
|
||
|
||
#ifdef G_OS_WIN32
|
||
tmp = g_strdup (g_getenv ("TEMP"));
|
||
|
||
if (tmp == NULL || *tmp == '\0')
|
||
{
|
||
g_free (tmp);
|
||
tmp = get_windows_directory_root ();
|
||
}
|
||
#else /* G_OS_WIN32 */
|
||
tmp = g_strdup (g_getenv ("TMPDIR"));
|
||
|
||
#ifdef P_tmpdir
|
||
if (tmp == NULL || *tmp == '\0')
|
||
{
|
||
gsize k;
|
||
g_free (tmp);
|
||
tmp = g_strdup (P_tmpdir);
|
||
k = strlen (tmp);
|
||
if (k > 1 && G_IS_DIR_SEPARATOR (tmp[k - 1]))
|
||
tmp[k - 1] = '\0';
|
||
}
|
||
#endif /* P_tmpdir */
|
||
|
||
if (tmp == NULL || *tmp == '\0')
|
||
{
|
||
g_free (tmp);
|
||
tmp = g_strdup ("/tmp");
|
||
}
|
||
#endif /* !G_OS_WIN32 */
|
||
|
||
g_once_init_leave (&tmp_dir, tmp);
|
||
}
|
||
|
||
return tmp_dir;
|
||
}
|
||
|
||
/**
|
||
* g_get_host_name:
|
||
*
|
||
* Return a name for the machine.
|
||
*
|
||
* The returned name is not necessarily a fully-qualified domain name,
|
||
* or even present in DNS or some other name service at all. It need
|
||
* not even be unique on your local network or site, but usually it
|
||
* is. Callers should not rely on the return value having any specific
|
||
* properties like uniqueness for security purposes. Even if the name
|
||
* of the machine is changed while an application is running, the
|
||
* return value from this function does not change. The returned
|
||
* string is owned by GLib and should not be modified or freed. If no
|
||
* name can be determined, a default fixed string "localhost" is
|
||
* returned.
|
||
*
|
||
* The encoding of the returned string is UTF-8.
|
||
*
|
||
* Returns: (transfer none): the host name of the machine.
|
||
*
|
||
* Since: 2.8
|
||
*/
|
||
const gchar *
|
||
g_get_host_name (void)
|
||
{
|
||
static gchar *hostname;
|
||
|
||
if (g_once_init_enter (&hostname))
|
||
{
|
||
gboolean failed;
|
||
gchar *utmp;
|
||
|
||
#ifndef G_OS_WIN32
|
||
glong max;
|
||
gsize size;
|
||
/* The number 256 * 256 is taken from the value of _POSIX_HOST_NAME_MAX,
|
||
* which is 255. Since we use _POSIX_HOST_NAME_MAX + 1 (= 256) in the
|
||
* fallback case, we pick 256 * 256 as the size of the larger buffer here.
|
||
* It should be large enough. It doesn't looks reasonable to name a host
|
||
* with a string that is longer than 64 KiB.
|
||
*/
|
||
const gsize size_large = (gsize) 256 * 256;
|
||
gchar *tmp;
|
||
|
||
#ifdef _SC_HOST_NAME_MAX
|
||
max = sysconf (_SC_HOST_NAME_MAX);
|
||
if (max > 0 && max <= G_MAXSIZE - 1)
|
||
size = (gsize) max + 1;
|
||
else
|
||
#ifdef HOST_NAME_MAX
|
||
size = HOST_NAME_MAX + 1;
|
||
#else
|
||
size = _POSIX_HOST_NAME_MAX + 1;
|
||
#endif /* HOST_NAME_MAX */
|
||
#else
|
||
/* Fallback to some reasonable value */
|
||
size = 256;
|
||
#endif /* _SC_HOST_NAME_MAX */
|
||
tmp = g_malloc (size);
|
||
failed = (gethostname (tmp, size) == -1);
|
||
if (failed && size < size_large)
|
||
{
|
||
/* Try again with a larger buffer if 'size' may be too small. */
|
||
g_free (tmp);
|
||
tmp = g_malloc (size_large);
|
||
failed = (gethostname (tmp, size_large) == -1);
|
||
}
|
||
|
||
if (failed)
|
||
g_clear_pointer (&tmp, g_free);
|
||
utmp = tmp;
|
||
#else
|
||
wchar_t tmp[MAX_COMPUTERNAME_LENGTH + 1];
|
||
DWORD size = sizeof (tmp) / sizeof (tmp[0]);
|
||
failed = (!GetComputerNameW (tmp, &size));
|
||
if (!failed)
|
||
utmp = g_utf16_to_utf8 (tmp, size, NULL, NULL, NULL);
|
||
if (utmp == NULL)
|
||
failed = TRUE;
|
||
#endif
|
||
|
||
g_once_init_leave (&hostname, failed ? g_strdup ("localhost") : utmp);
|
||
}
|
||
|
||
return hostname;
|
||
}
|
||
|
||
G_LOCK_DEFINE_STATIC (g_prgname);
|
||
static gchar *g_prgname = NULL;
|
||
|
||
/**
|
||
* g_get_prgname:
|
||
*
|
||
* Gets the name of the program. This name should not be localized,
|
||
* in contrast to g_get_application_name().
|
||
*
|
||
* If you are using #GApplication the program name is set in
|
||
* g_application_run(). In case of GDK or GTK+ it is set in
|
||
* gdk_init(), which is called by gtk_init() and the
|
||
* #GtkApplication::startup handler. The program name is found by
|
||
* taking the last component of @argv[0].
|
||
*
|
||
* Returns: (nullable) (transfer none): the name of the program,
|
||
* or %NULL if it has not been set yet. The returned string belongs
|
||
* to GLib and must not be modified or freed.
|
||
*/
|
||
const gchar*
|
||
g_get_prgname (void)
|
||
{
|
||
gchar* retval;
|
||
|
||
G_LOCK (g_prgname);
|
||
retval = g_prgname;
|
||
G_UNLOCK (g_prgname);
|
||
|
||
return retval;
|
||
}
|
||
|
||
/**
|
||
* g_set_prgname:
|
||
* @prgname: the name of the program.
|
||
*
|
||
* Sets the name of the program. This name should not be localized,
|
||
* in contrast to g_set_application_name().
|
||
*
|
||
* If you are using #GApplication the program name is set in
|
||
* g_application_run(). In case of GDK or GTK+ it is set in
|
||
* gdk_init(), which is called by gtk_init() and the
|
||
* #GtkApplication::startup handler. The program name is found by
|
||
* taking the last component of @argv[0].
|
||
*
|
||
* Note that for thread-safety reasons this function can only be called once.
|
||
*/
|
||
void
|
||
g_set_prgname (const gchar *prgname)
|
||
{
|
||
G_LOCK (g_prgname);
|
||
g_free (g_prgname);
|
||
g_prgname = g_strdup (prgname);
|
||
G_UNLOCK (g_prgname);
|
||
}
|
||
|
||
G_LOCK_DEFINE_STATIC (g_application_name);
|
||
static gchar *g_application_name = NULL;
|
||
|
||
/**
|
||
* g_get_application_name:
|
||
*
|
||
* Gets a human-readable name for the application, as set by
|
||
* g_set_application_name(). This name should be localized if
|
||
* possible, and is intended for display to the user. Contrast with
|
||
* g_get_prgname(), which gets a non-localized name. If
|
||
* g_set_application_name() has not been called, returns the result of
|
||
* g_get_prgname() (which may be %NULL if g_set_prgname() has also not
|
||
* been called).
|
||
*
|
||
* Returns: (transfer none) (nullable): human-readable application
|
||
* name. May return %NULL
|
||
*
|
||
* Since: 2.2
|
||
**/
|
||
const gchar *
|
||
g_get_application_name (void)
|
||
{
|
||
gchar* retval;
|
||
|
||
G_LOCK (g_application_name);
|
||
retval = g_application_name;
|
||
G_UNLOCK (g_application_name);
|
||
|
||
if (retval == NULL)
|
||
return g_get_prgname ();
|
||
|
||
return retval;
|
||
}
|
||
|
||
/**
|
||
* g_set_application_name:
|
||
* @application_name: localized name of the application
|
||
*
|
||
* Sets a human-readable name for the application. This name should be
|
||
* localized if possible, and is intended for display to the user.
|
||
* Contrast with g_set_prgname(), which sets a non-localized name.
|
||
* g_set_prgname() will be called automatically by gtk_init(),
|
||
* but g_set_application_name() will not.
|
||
*
|
||
* Note that for thread safety reasons, this function can only
|
||
* be called once.
|
||
*
|
||
* The application name will be used in contexts such as error messages,
|
||
* or when displaying an application's name in the task list.
|
||
*
|
||
* Since: 2.2
|
||
**/
|
||
void
|
||
g_set_application_name (const gchar *application_name)
|
||
{
|
||
gboolean already_set = FALSE;
|
||
|
||
G_LOCK (g_application_name);
|
||
if (g_application_name)
|
||
already_set = TRUE;
|
||
else
|
||
g_application_name = g_strdup (application_name);
|
||
G_UNLOCK (g_application_name);
|
||
|
||
if (already_set)
|
||
g_warning ("g_set_application_name() called multiple times");
|
||
}
|
||
|
||
#ifdef G_OS_WIN32
|
||
/* For the past versions we can just
|
||
* hardcode all the names.
|
||
*/
|
||
static const struct winver
|
||
{
|
||
gint major;
|
||
gint minor;
|
||
gint sp;
|
||
const char *version;
|
||
const char *spversion;
|
||
} versions[] =
|
||
{
|
||
{6, 2, 0, "8", ""},
|
||
{6, 1, 1, "7", " SP1"},
|
||
{6, 1, 0, "7", ""},
|
||
{6, 0, 2, "Vista", " SP2"},
|
||
{6, 0, 1, "Vista", " SP1"},
|
||
{6, 0, 0, "Vista", ""},
|
||
{5, 1, 3, "XP", " SP3"},
|
||
{5, 1, 2, "XP", " SP2"},
|
||
{5, 1, 1, "XP", " SP1"},
|
||
{5, 1, 0, "XP", ""},
|
||
{0, 0, 0, NULL, NULL},
|
||
};
|
||
|
||
static gchar *
|
||
get_registry_str (HKEY root_key, const wchar_t *path, const wchar_t *value_name)
|
||
{
|
||
HKEY key_handle;
|
||
DWORD req_value_data_size;
|
||
DWORD req_value_data_size2;
|
||
LONG status;
|
||
DWORD value_type_w;
|
||
DWORD value_type_w2;
|
||
char *req_value_data;
|
||
gchar *result;
|
||
|
||
status = RegOpenKeyExW (root_key, path, 0, KEY_READ, &key_handle);
|
||
if (status != ERROR_SUCCESS)
|
||
return NULL;
|
||
|
||
req_value_data_size = 0;
|
||
status = RegQueryValueExW (key_handle,
|
||
value_name,
|
||
NULL,
|
||
&value_type_w,
|
||
NULL,
|
||
&req_value_data_size);
|
||
|
||
if (status != ERROR_MORE_DATA && status != ERROR_SUCCESS)
|
||
{
|
||
RegCloseKey (key_handle);
|
||
|
||
return NULL;
|
||
}
|
||
|
||
req_value_data = g_malloc (req_value_data_size);
|
||
req_value_data_size2 = req_value_data_size;
|
||
|
||
status = RegQueryValueExW (key_handle,
|
||
value_name,
|
||
NULL,
|
||
&value_type_w2,
|
||
(gpointer) req_value_data,
|
||
&req_value_data_size2);
|
||
|
||
result = NULL;
|
||
|
||
if (status == ERROR_SUCCESS && value_type_w2 == REG_SZ)
|
||
result = g_utf16_to_utf8 ((gunichar2 *) req_value_data,
|
||
req_value_data_size / sizeof (gunichar2),
|
||
NULL,
|
||
NULL,
|
||
NULL);
|
||
|
||
g_free (req_value_data);
|
||
RegCloseKey (key_handle);
|
||
|
||
return result;
|
||
}
|
||
|
||
/* Windows 8.1 can be either plain or with Update 1,
|
||
* depending on its build number (9200 or 9600).
|
||
*/
|
||
static gchar *
|
||
get_windows_8_1_update (void)
|
||
{
|
||
gchar *current_build;
|
||
gchar *result = NULL;
|
||
|
||
current_build = get_registry_str (HKEY_LOCAL_MACHINE,
|
||
L"SOFTWARE"
|
||
L"\\Microsoft"
|
||
L"\\Windows NT"
|
||
L"\\CurrentVersion",
|
||
L"CurrentBuild");
|
||
|
||
if (current_build != NULL)
|
||
{
|
||
wchar_t *end;
|
||
long build = wcstol ((const wchar_t *) current_build, &end, 10);
|
||
|
||
if (build <= INT_MAX &&
|
||
build >= INT_MIN &&
|
||
errno == 0 &&
|
||
*end == L'\0')
|
||
{
|
||
if (build >= 9600)
|
||
result = g_strdup ("Update 1");
|
||
}
|
||
}
|
||
|
||
g_clear_pointer (¤t_build, g_free);
|
||
|
||
return result;
|
||
}
|
||
|
||
static gchar *
|
||
get_windows_version (gboolean with_windows)
|
||
{
|
||
GString *version = g_string_new (NULL);
|
||
|
||
if (g_win32_check_windows_version (10, 0, 0, G_WIN32_OS_ANY))
|
||
{
|
||
gchar *win10_release;
|
||
|
||
g_string_append (version, "10");
|
||
|
||
if (!g_win32_check_windows_version (10, 0, 0, G_WIN32_OS_WORKSTATION))
|
||
g_string_append (version, " Server");
|
||
|
||
/* Windows 10 is identified by its release number, such as
|
||
* 1511, 1607, 1703, 1709, 1803, 1809 or 1903.
|
||
* The first version of Windows 10 has no release number.
|
||
*/
|
||
win10_release = get_registry_str (HKEY_LOCAL_MACHINE,
|
||
L"SOFTWARE"
|
||
L"\\Microsoft"
|
||
L"\\Windows NT"
|
||
L"\\CurrentVersion",
|
||
L"ReleaseId");
|
||
|
||
if (win10_release != NULL)
|
||
g_string_append_printf (version, " %s", win10_release);
|
||
|
||
g_free (win10_release);
|
||
}
|
||
else if (g_win32_check_windows_version (6, 3, 0, G_WIN32_OS_ANY))
|
||
{
|
||
gchar *win81_update;
|
||
|
||
g_string_append (version, "8.1");
|
||
|
||
if (!g_win32_check_windows_version (6, 3, 0, G_WIN32_OS_WORKSTATION))
|
||
g_string_append (version, " Server");
|
||
|
||
win81_update = get_windows_8_1_update ();
|
||
|
||
if (win81_update != NULL)
|
||
g_string_append_printf (version, " %s", win81_update);
|
||
|
||
g_free (win81_update);
|
||
}
|
||
else
|
||
{
|
||
gint i;
|
||
|
||
for (i = 0; versions[i].major > 0; i++)
|
||
{
|
||
if (!g_win32_check_windows_version (versions[i].major, versions[i].minor, versions[i].sp, G_WIN32_OS_ANY))
|
||
continue;
|
||
|
||
g_string_append (version, versions[i].version);
|
||
|
||
if (!g_win32_check_windows_version (versions[i].major, versions[i].minor, versions[i].sp, G_WIN32_OS_WORKSTATION))
|
||
g_string_append (version, " Server");
|
||
|
||
g_string_append (version, versions[i].spversion);
|
||
}
|
||
}
|
||
|
||
if (version->len == 0)
|
||
{
|
||
g_string_free (version, TRUE);
|
||
|
||
return NULL;
|
||
}
|
||
|
||
if (with_windows)
|
||
g_string_prepend (version, "Windows ");
|
||
|
||
return g_string_free (version, FALSE);
|
||
}
|
||
#endif
|
||
|
||
#ifdef G_OS_UNIX
|
||
static gchar *
|
||
get_os_info_from_os_release (const gchar *key_name,
|
||
const gchar *buffer)
|
||
{
|
||
GStrv lines;
|
||
gchar *prefix;
|
||
size_t i;
|
||
gchar *result = NULL;
|
||
|
||
lines = g_strsplit (buffer, "\n", -1);
|
||
prefix = g_strdup_printf ("%s=", key_name);
|
||
for (i = 0; lines[i] != NULL; i++)
|
||
{
|
||
const gchar *line = lines[i];
|
||
const gchar *value;
|
||
|
||
if (g_str_has_prefix (line, prefix))
|
||
{
|
||
value = line + strlen (prefix);
|
||
result = g_shell_unquote (value, NULL);
|
||
if (result == NULL)
|
||
result = g_strdup (value);
|
||
break;
|
||
}
|
||
}
|
||
g_strfreev (lines);
|
||
g_free (prefix);
|
||
|
||
#ifdef __linux__
|
||
/* Default values in spec */
|
||
if (result == NULL)
|
||
{
|
||
if (g_str_equal (key_name, G_OS_INFO_KEY_NAME))
|
||
return g_strdup ("Linux");
|
||
if (g_str_equal (key_name, G_OS_INFO_KEY_ID))
|
||
return g_strdup ("linux");
|
||
if (g_str_equal (key_name, G_OS_INFO_KEY_PRETTY_NAME))
|
||
return g_strdup ("Linux");
|
||
}
|
||
#endif
|
||
|
||
return g_steal_pointer (&result);
|
||
}
|
||
|
||
static gchar *
|
||
get_os_info_from_uname (const gchar *key_name)
|
||
{
|
||
struct utsname info;
|
||
|
||
if (uname (&info) == -1)
|
||
return NULL;
|
||
|
||
if (strcmp (key_name, G_OS_INFO_KEY_NAME) == 0)
|
||
return g_strdup (info.sysname);
|
||
else if (strcmp (key_name, G_OS_INFO_KEY_VERSION) == 0)
|
||
return g_strdup (info.release);
|
||
else if (strcmp (key_name, G_OS_INFO_KEY_PRETTY_NAME) == 0)
|
||
return g_strdup_printf ("%s %s", info.sysname, info.release);
|
||
else if (strcmp (key_name, G_OS_INFO_KEY_ID) == 0)
|
||
{
|
||
gchar *result = g_ascii_strdown (info.sysname, -1);
|
||
|
||
g_strcanon (result, "abcdefghijklmnopqrstuvwxyz0123456789_-.", '_');
|
||
return g_steal_pointer (&result);
|
||
}
|
||
else if (strcmp (key_name, G_OS_INFO_KEY_VERSION_ID) == 0)
|
||
{
|
||
/* We attempt to convert the version string to the format returned by
|
||
* config.guess, which is the script used to generate target triplets
|
||
* in GNU autotools. There are a lot of rules in the script. We only
|
||
* implement a few rules which are easy to understand here.
|
||
*
|
||
* config.guess can be found at https://savannah.gnu.org/projects/config.
|
||
*/
|
||
gchar *result;
|
||
|
||
if (strcmp (info.sysname, "NetBSD") == 0)
|
||
{
|
||
/* sed -e 's,[-_].*,,' */
|
||
gssize len = G_MAXSSIZE;
|
||
const gchar *c;
|
||
|
||
if ((c = strchr (info.release, '-')) != NULL)
|
||
len = MIN (len, c - info.release);
|
||
if ((c = strchr (info.release, '_')) != NULL)
|
||
len = MIN (len, c - info.release);
|
||
if (len == G_MAXSSIZE)
|
||
len = -1;
|
||
|
||
result = g_ascii_strdown (info.release, len);
|
||
}
|
||
else if (strcmp (info.sysname, "GNU") == 0)
|
||
{
|
||
/* sed -e 's,/.*$,,' */
|
||
gssize len = -1;
|
||
const gchar *c = strchr (info.release, '/');
|
||
|
||
if (c != NULL)
|
||
len = c - info.release;
|
||
|
||
result = g_ascii_strdown (info.release, len);
|
||
}
|
||
else if (g_str_has_prefix (info.sysname, "GNU/") ||
|
||
strcmp (info.sysname, "FreeBSD") == 0 ||
|
||
strcmp (info.sysname, "DragonFly") == 0)
|
||
{
|
||
/* sed -e 's,[-(].*,,' */
|
||
gssize len = G_MAXSSIZE;
|
||
const gchar *c;
|
||
|
||
if ((c = strchr (info.release, '-')) != NULL)
|
||
len = MIN (len, c - info.release);
|
||
if ((c = strchr (info.release, '(')) != NULL)
|
||
len = MIN (len, c - info.release);
|
||
if (len == G_MAXSSIZE)
|
||
len = -1;
|
||
|
||
result = g_ascii_strdown (info.release, len);
|
||
}
|
||
else
|
||
result = g_ascii_strdown (info.release, -1);
|
||
|
||
g_strcanon (result, "abcdefghijklmnopqrstuvwxyz0123456789_-.", '_');
|
||
return g_steal_pointer (&result);
|
||
}
|
||
else
|
||
return NULL;
|
||
}
|
||
#endif
|
||
|
||
/**
|
||
* g_get_os_info:
|
||
* @key_name: a key for the OS info being requested, for example %G_OS_INFO_KEY_NAME.
|
||
*
|
||
* Get information about the operating system.
|
||
*
|
||
* On Linux this comes from the `/etc/os-release` file. On other systems, it may
|
||
* come from a variety of sources. You can either use the standard key names
|
||
* like %G_OS_INFO_KEY_NAME or pass any UTF-8 string key name. For example,
|
||
* `/etc/os-release` provides a number of other less commonly used values that may
|
||
* be useful. No key is guaranteed to be provided, so the caller should always
|
||
* check if the result is %NULL.
|
||
*
|
||
* Returns: (nullable): The associated value for the requested key or %NULL if
|
||
* this information is not provided.
|
||
*
|
||
* Since: 2.64
|
||
**/
|
||
gchar *
|
||
g_get_os_info (const gchar *key_name)
|
||
{
|
||
#if defined (__APPLE__)
|
||
if (g_strcmp0 (key_name, G_OS_INFO_KEY_NAME) == 0)
|
||
return g_strdup ("macOS");
|
||
else
|
||
return NULL;
|
||
#elif defined (G_OS_UNIX)
|
||
const gchar * const os_release_files[] = { "/etc/os-release", "/usr/lib/os-release" };
|
||
gsize i;
|
||
gchar *buffer = NULL;
|
||
gchar *result = NULL;
|
||
|
||
g_return_val_if_fail (key_name != NULL, NULL);
|
||
|
||
for (i = 0; i < G_N_ELEMENTS (os_release_files); i++)
|
||
{
|
||
GError *error = NULL;
|
||
gboolean file_missing;
|
||
|
||
if (g_file_get_contents (os_release_files[i], &buffer, NULL, &error))
|
||
break;
|
||
|
||
file_missing = g_error_matches (error, G_FILE_ERROR, G_FILE_ERROR_NOENT);
|
||
g_clear_error (&error);
|
||
|
||
if (!file_missing)
|
||
return NULL;
|
||
}
|
||
|
||
if (buffer != NULL)
|
||
result = get_os_info_from_os_release (key_name, buffer);
|
||
else
|
||
result = get_os_info_from_uname (key_name);
|
||
|
||
g_free (buffer);
|
||
return g_steal_pointer (&result);
|
||
#elif defined (G_OS_WIN32)
|
||
if (g_strcmp0 (key_name, G_OS_INFO_KEY_NAME) == 0)
|
||
return g_strdup ("Windows");
|
||
else if (g_strcmp0 (key_name, G_OS_INFO_KEY_ID) == 0)
|
||
return g_strdup ("windows");
|
||
else if (g_strcmp0 (key_name, G_OS_INFO_KEY_PRETTY_NAME) == 0)
|
||
/* Windows XP SP2 or Windows 10 1903 or Windows 7 Server SP1 */
|
||
return get_windows_version (TRUE);
|
||
else if (g_strcmp0 (key_name, G_OS_INFO_KEY_VERSION) == 0)
|
||
/* XP SP2 or 10 1903 or 7 Server SP1 */
|
||
return get_windows_version (FALSE);
|
||
else if (g_strcmp0 (key_name, G_OS_INFO_KEY_VERSION_ID) == 0)
|
||
{
|
||
/* xp_sp2 or 10_1903 or 7_server_sp1 */
|
||
gchar *result;
|
||
gchar *version = get_windows_version (FALSE);
|
||
|
||
if (version == NULL)
|
||
return NULL;
|
||
|
||
result = g_ascii_strdown (version, -1);
|
||
g_free (version);
|
||
|
||
return g_strcanon (result, "abcdefghijklmnopqrstuvwxyz0123456789_-.", '_');
|
||
}
|
||
else if (g_strcmp0 (key_name, G_OS_INFO_KEY_HOME_URL) == 0)
|
||
return g_strdup ("https://microsoft.com/windows/");
|
||
else if (g_strcmp0 (key_name, G_OS_INFO_KEY_DOCUMENTATION_URL) == 0)
|
||
return g_strdup ("https://docs.microsoft.com/");
|
||
else if (g_strcmp0 (key_name, G_OS_INFO_KEY_SUPPORT_URL) == 0)
|
||
return g_strdup ("https://support.microsoft.com/");
|
||
else if (g_strcmp0 (key_name, G_OS_INFO_KEY_BUG_REPORT_URL) == 0)
|
||
return g_strdup ("https://support.microsoft.com/contactus/");
|
||
else if (g_strcmp0 (key_name, G_OS_INFO_KEY_PRIVACY_POLICY_URL) == 0)
|
||
return g_strdup ("https://privacy.microsoft.com/");
|
||
else
|
||
return NULL;
|
||
#endif
|
||
}
|
||
|
||
/* Set @global_str to a copy of @new_value if it’s currently unset or has a
|
||
* different value. If its current value matches @new_value, do nothing. If
|
||
* replaced, we have to leak the old value as client code could still have
|
||
* pointers to it. */
|
||
static void
|
||
set_str_if_different (gchar **global_str,
|
||
const gchar *type,
|
||
const gchar *new_value)
|
||
{
|
||
if (*global_str == NULL ||
|
||
!g_str_equal (new_value, *global_str))
|
||
{
|
||
g_debug ("g_set_user_dirs: Setting %s to %s", type, new_value);
|
||
|
||
/* We have to leak the old value, as user code could be retaining pointers
|
||
* to it. */
|
||
*global_str = g_strdup (new_value);
|
||
}
|
||
}
|
||
|
||
static void
|
||
set_strv_if_different (gchar ***global_strv,
|
||
const gchar *type,
|
||
const gchar * const *new_value)
|
||
{
|
||
if (*global_strv == NULL ||
|
||
!g_strv_equal (new_value, (const gchar * const *) *global_strv))
|
||
{
|
||
gchar *new_value_str = g_strjoinv (":", (gchar **) new_value);
|
||
g_debug ("g_set_user_dirs: Setting %s to %s", type, new_value_str);
|
||
g_free (new_value_str);
|
||
|
||
/* We have to leak the old value, as user code could be retaining pointers
|
||
* to it. */
|
||
*global_strv = g_strdupv ((gchar **) new_value);
|
||
}
|
||
}
|
||
|
||
/*
|
||
* g_set_user_dirs:
|
||
* @first_dir_type: Type of the first directory to set
|
||
* @...: Value to set the first directory to, followed by additional type/value
|
||
* pairs, followed by %NULL
|
||
*
|
||
* Set one or more ‘user’ directories to custom values. This is intended to be
|
||
* used by test code (particularly with the %G_TEST_OPTION_ISOLATE_DIRS option)
|
||
* to override the values returned by the following functions, so that test
|
||
* code can be run without touching an installed system and user data:
|
||
*
|
||
* - g_get_home_dir() — use type `HOME`, pass a string
|
||
* - g_get_user_cache_dir() — use type `XDG_CACHE_HOME`, pass a string
|
||
* - g_get_system_config_dirs() — use type `XDG_CONFIG_DIRS`, pass a
|
||
* %NULL-terminated string array
|
||
* - g_get_user_config_dir() — use type `XDG_CONFIG_HOME`, pass a string
|
||
* - g_get_system_data_dirs() — use type `XDG_DATA_DIRS`, pass a
|
||
* %NULL-terminated string array
|
||
* - g_get_user_data_dir() — use type `XDG_DATA_HOME`, pass a string
|
||
* - g_get_user_runtime_dir() — use type `XDG_RUNTIME_DIR`, pass a string
|
||
*
|
||
* The list must be terminated with a %NULL type. All of the values must be
|
||
* non-%NULL — passing %NULL as a value won’t reset a directory. If a reference
|
||
* to a directory from the calling environment needs to be kept, copy it before
|
||
* the first call to g_set_user_dirs(). g_set_user_dirs() can be called multiple
|
||
* times.
|
||
*
|
||
* Since: 2.60
|
||
*/
|
||
/*< private > */
|
||
void
|
||
g_set_user_dirs (const gchar *first_dir_type,
|
||
...)
|
||
{
|
||
va_list args;
|
||
const gchar *dir_type;
|
||
|
||
G_LOCK (g_utils_global);
|
||
|
||
va_start (args, first_dir_type);
|
||
|
||
for (dir_type = first_dir_type; dir_type != NULL; dir_type = va_arg (args, const gchar *))
|
||
{
|
||
gconstpointer dir_value = va_arg (args, gconstpointer);
|
||
g_assert (dir_value != NULL);
|
||
|
||
if (g_str_equal (dir_type, "HOME"))
|
||
set_str_if_different (&g_home_dir, dir_type, dir_value);
|
||
else if (g_str_equal (dir_type, "XDG_CACHE_HOME"))
|
||
set_str_if_different (&g_user_cache_dir, dir_type, dir_value);
|
||
else if (g_str_equal (dir_type, "XDG_CONFIG_DIRS"))
|
||
set_strv_if_different (&g_system_config_dirs, dir_type, dir_value);
|
||
else if (g_str_equal (dir_type, "XDG_CONFIG_HOME"))
|
||
set_str_if_different (&g_user_config_dir, dir_type, dir_value);
|
||
else if (g_str_equal (dir_type, "XDG_DATA_DIRS"))
|
||
set_strv_if_different (&g_system_data_dirs, dir_type, dir_value);
|
||
else if (g_str_equal (dir_type, "XDG_DATA_HOME"))
|
||
set_str_if_different (&g_user_data_dir, dir_type, dir_value);
|
||
else if (g_str_equal (dir_type, "XDG_RUNTIME_DIR"))
|
||
set_str_if_different (&g_user_runtime_dir, dir_type, dir_value);
|
||
else
|
||
g_assert_not_reached ();
|
||
}
|
||
|
||
va_end (args);
|
||
|
||
G_UNLOCK (g_utils_global);
|
||
}
|
||
|
||
static gchar *
|
||
g_build_user_data_dir (void)
|
||
{
|
||
gchar *data_dir = NULL;
|
||
const gchar *data_dir_env = g_getenv ("XDG_DATA_HOME");
|
||
|
||
if (data_dir_env && data_dir_env[0])
|
||
data_dir = g_strdup (data_dir_env);
|
||
#ifdef G_OS_WIN32
|
||
else
|
||
data_dir = get_special_folder (CSIDL_LOCAL_APPDATA);
|
||
#endif
|
||
if (!data_dir || !data_dir[0])
|
||
{
|
||
gchar *home_dir = g_build_home_dir ();
|
||
data_dir = g_build_filename (home_dir, ".local", "share", NULL);
|
||
g_free (home_dir);
|
||
}
|
||
|
||
return g_steal_pointer (&data_dir);
|
||
}
|
||
|
||
/**
|
||
* g_get_user_data_dir:
|
||
*
|
||
* Returns a base directory in which to access application data such
|
||
* as icons that is customized for a particular user.
|
||
*
|
||
* On UNIX platforms this is determined using the mechanisms described
|
||
* in the
|
||
* [XDG Base Directory Specification](http://www.freedesktop.org/Standards/basedir-spec).
|
||
* In this case the directory retrieved will be `XDG_DATA_HOME`.
|
||
*
|
||
* On Windows it follows XDG Base Directory Specification if `XDG_DATA_HOME`
|
||
* is defined. If `XDG_DATA_HOME` is undefined, the folder to use for local (as
|
||
* opposed to roaming) application data is used instead. See the
|
||
* [documentation for `CSIDL_LOCAL_APPDATA`](https://msdn.microsoft.com/en-us/library/windows/desktop/bb762494%28v=vs.85%29.aspx#csidl_local_appdata).
|
||
* Note that in this case on Windows it will be the same
|
||
* as what g_get_user_config_dir() returns.
|
||
*
|
||
* Returns: (type filename) (transfer none): a string owned by GLib that must
|
||
* not be modified or freed.
|
||
*
|
||
* Since: 2.6
|
||
**/
|
||
const gchar *
|
||
g_get_user_data_dir (void)
|
||
{
|
||
const gchar *user_data_dir;
|
||
|
||
G_LOCK (g_utils_global);
|
||
|
||
if (g_user_data_dir == NULL)
|
||
g_user_data_dir = g_build_user_data_dir ();
|
||
user_data_dir = g_user_data_dir;
|
||
|
||
G_UNLOCK (g_utils_global);
|
||
|
||
return user_data_dir;
|
||
}
|
||
|
||
static gchar *
|
||
g_build_user_config_dir (void)
|
||
{
|
||
gchar *config_dir = NULL;
|
||
const gchar *config_dir_env = g_getenv ("XDG_CONFIG_HOME");
|
||
|
||
if (config_dir_env && config_dir_env[0])
|
||
config_dir = g_strdup (config_dir_env);
|
||
#ifdef G_OS_WIN32
|
||
else
|
||
config_dir = get_special_folder (CSIDL_LOCAL_APPDATA);
|
||
#endif
|
||
if (!config_dir || !config_dir[0])
|
||
{
|
||
gchar *home_dir = g_build_home_dir ();
|
||
config_dir = g_build_filename (home_dir, ".config", NULL);
|
||
g_free (home_dir);
|
||
}
|
||
|
||
return g_steal_pointer (&config_dir);
|
||
}
|
||
|
||
/**
|
||
* g_get_user_config_dir:
|
||
*
|
||
* Returns a base directory in which to store user-specific application
|
||
* configuration information such as user preferences and settings.
|
||
*
|
||
* On UNIX platforms this is determined using the mechanisms described
|
||
* in the
|
||
* [XDG Base Directory Specification](http://www.freedesktop.org/Standards/basedir-spec).
|
||
* In this case the directory retrieved will be `XDG_CONFIG_HOME`.
|
||
*
|
||
* On Windows it follows XDG Base Directory Specification if `XDG_CONFIG_HOME` is defined.
|
||
* If `XDG_CONFIG_HOME` is undefined, the folder to use for local (as opposed
|
||
* to roaming) application data is used instead. See the
|
||
* [documentation for `CSIDL_LOCAL_APPDATA`](https://msdn.microsoft.com/en-us/library/windows/desktop/bb762494%28v=vs.85%29.aspx#csidl_local_appdata).
|
||
* Note that in this case on Windows it will be the same
|
||
* as what g_get_user_data_dir() returns.
|
||
*
|
||
* Returns: (type filename) (transfer none): a string owned by GLib that
|
||
* must not be modified or freed.
|
||
* Since: 2.6
|
||
**/
|
||
const gchar *
|
||
g_get_user_config_dir (void)
|
||
{
|
||
const gchar *user_config_dir;
|
||
|
||
G_LOCK (g_utils_global);
|
||
|
||
if (g_user_config_dir == NULL)
|
||
g_user_config_dir = g_build_user_config_dir ();
|
||
user_config_dir = g_user_config_dir;
|
||
|
||
G_UNLOCK (g_utils_global);
|
||
|
||
return user_config_dir;
|
||
}
|
||
|
||
static gchar *
|
||
g_build_user_cache_dir (void)
|
||
{
|
||
gchar *cache_dir = NULL;
|
||
const gchar *cache_dir_env = g_getenv ("XDG_CACHE_HOME");
|
||
|
||
if (cache_dir_env && cache_dir_env[0])
|
||
cache_dir = g_strdup (cache_dir_env);
|
||
#ifdef G_OS_WIN32
|
||
else
|
||
cache_dir = get_special_folder (CSIDL_INTERNET_CACHE);
|
||
#endif
|
||
if (!cache_dir || !cache_dir[0])
|
||
{
|
||
gchar *home_dir = g_build_home_dir ();
|
||
cache_dir = g_build_filename (home_dir, ".cache", NULL);
|
||
g_free (home_dir);
|
||
}
|
||
|
||
return g_steal_pointer (&cache_dir);
|
||
}
|
||
|
||
/**
|
||
* g_get_user_cache_dir:
|
||
*
|
||
* Returns a base directory in which to store non-essential, cached
|
||
* data specific to particular user.
|
||
*
|
||
* On UNIX platforms this is determined using the mechanisms described
|
||
* in the
|
||
* [XDG Base Directory Specification](http://www.freedesktop.org/Standards/basedir-spec).
|
||
* In this case the directory retrieved will be `XDG_CACHE_HOME`.
|
||
*
|
||
* On Windows it follows XDG Base Directory Specification if `XDG_CACHE_HOME` is defined.
|
||
* If `XDG_CACHE_HOME` is undefined, the directory that serves as a common
|
||
* repository for temporary Internet files is used instead. A typical path is
|
||
* `C:\Documents and Settings\username\Local Settings\Temporary Internet Files`.
|
||
* See the [documentation for `CSIDL_INTERNET_CACHE`](https://msdn.microsoft.com/en-us/library/windows/desktop/bb762494%28v=vs.85%29.aspx#csidl_internet_cache).
|
||
*
|
||
* Returns: (type filename) (transfer none): a string owned by GLib that
|
||
* must not be modified or freed.
|
||
* Since: 2.6
|
||
**/
|
||
const gchar *
|
||
g_get_user_cache_dir (void)
|
||
{
|
||
const gchar *user_cache_dir;
|
||
|
||
G_LOCK (g_utils_global);
|
||
|
||
if (g_user_cache_dir == NULL)
|
||
g_user_cache_dir = g_build_user_cache_dir ();
|
||
user_cache_dir = g_user_cache_dir;
|
||
|
||
G_UNLOCK (g_utils_global);
|
||
|
||
return user_cache_dir;
|
||
}
|
||
|
||
static gchar *
|
||
g_build_user_runtime_dir (void)
|
||
{
|
||
gchar *runtime_dir = NULL;
|
||
const gchar *runtime_dir_env = g_getenv ("XDG_RUNTIME_DIR");
|
||
|
||
if (runtime_dir_env && runtime_dir_env[0])
|
||
runtime_dir = g_strdup (runtime_dir_env);
|
||
else
|
||
{
|
||
runtime_dir = g_build_user_cache_dir ();
|
||
|
||
/* The user should be able to rely on the directory existing
|
||
* when the function returns. Probably it already does, but
|
||
* let's make sure. Just do mkdir() directly since it will be
|
||
* no more expensive than a stat() in the case that the
|
||
* directory already exists and is a lot easier.
|
||
*
|
||
* $XDG_CACHE_HOME is probably ~/.cache/ so as long as $HOME
|
||
* exists this will work. If the user changed $XDG_CACHE_HOME
|
||
* then they can make sure that it exists...
|
||
*/
|
||
(void) g_mkdir (runtime_dir, 0700);
|
||
}
|
||
|
||
return g_steal_pointer (&runtime_dir);
|
||
}
|
||
|
||
/**
|
||
* g_get_user_runtime_dir:
|
||
*
|
||
* Returns a directory that is unique to the current user on the local
|
||
* system.
|
||
*
|
||
* This is determined using the mechanisms described
|
||
* in the
|
||
* [XDG Base Directory Specification](http://www.freedesktop.org/Standards/basedir-spec).
|
||
* This is the directory
|
||
* specified in the `XDG_RUNTIME_DIR` environment variable.
|
||
* In the case that this variable is not set, we return the value of
|
||
* g_get_user_cache_dir(), after verifying that it exists.
|
||
*
|
||
* Returns: (type filename): a string owned by GLib that must not be
|
||
* modified or freed.
|
||
*
|
||
* Since: 2.28
|
||
**/
|
||
const gchar *
|
||
g_get_user_runtime_dir (void)
|
||
{
|
||
const gchar *user_runtime_dir;
|
||
|
||
G_LOCK (g_utils_global);
|
||
|
||
if (g_user_runtime_dir == NULL)
|
||
g_user_runtime_dir = g_build_user_runtime_dir ();
|
||
user_runtime_dir = g_user_runtime_dir;
|
||
|
||
G_UNLOCK (g_utils_global);
|
||
|
||
return user_runtime_dir;
|
||
}
|
||
|
||
#ifdef HAVE_COCOA
|
||
|
||
/* Implemented in gutils-macos.m */
|
||
void load_user_special_dirs_macos (gchar **table);
|
||
|
||
static void
|
||
load_user_special_dirs (void)
|
||
{
|
||
load_user_special_dirs_macos (g_user_special_dirs);
|
||
}
|
||
|
||
#elif defined(G_OS_WIN32)
|
||
|
||
static void
|
||
load_user_special_dirs (void)
|
||
{
|
||
typedef HRESULT (WINAPI *t_SHGetKnownFolderPath) (const GUID *rfid,
|
||
DWORD dwFlags,
|
||
HANDLE hToken,
|
||
PWSTR *ppszPath);
|
||
t_SHGetKnownFolderPath p_SHGetKnownFolderPath;
|
||
|
||
static const GUID FOLDERID_Downloads =
|
||
{ 0x374de290, 0x123f, 0x4565, { 0x91, 0x64, 0x39, 0xc4, 0x92, 0x5e, 0x46, 0x7b } };
|
||
static const GUID FOLDERID_Public =
|
||
{ 0xDFDF76A2, 0xC82A, 0x4D63, { 0x90, 0x6A, 0x56, 0x44, 0xAC, 0x45, 0x73, 0x85 } };
|
||
|
||
wchar_t *wcp;
|
||
|
||
p_SHGetKnownFolderPath = (t_SHGetKnownFolderPath) GetProcAddress (GetModuleHandle ("shell32.dll"),
|
||
"SHGetKnownFolderPath");
|
||
|
||
g_user_special_dirs[G_USER_DIRECTORY_DESKTOP] = get_special_folder (CSIDL_DESKTOPDIRECTORY);
|
||
g_user_special_dirs[G_USER_DIRECTORY_DOCUMENTS] = get_special_folder (CSIDL_PERSONAL);
|
||
|
||
if (p_SHGetKnownFolderPath == NULL)
|
||
{
|
||
g_user_special_dirs[G_USER_DIRECTORY_DOWNLOAD] = get_special_folder (CSIDL_DESKTOPDIRECTORY);
|
||
}
|
||
else
|
||
{
|
||
wcp = NULL;
|
||
(*p_SHGetKnownFolderPath) (&FOLDERID_Downloads, 0, NULL, &wcp);
|
||
if (wcp)
|
||
{
|
||
g_user_special_dirs[G_USER_DIRECTORY_DOWNLOAD] = g_utf16_to_utf8 (wcp, -1, NULL, NULL, NULL);
|
||
if (g_user_special_dirs[G_USER_DIRECTORY_DOWNLOAD] == NULL)
|
||
g_user_special_dirs[G_USER_DIRECTORY_DOWNLOAD] = get_special_folder (CSIDL_DESKTOPDIRECTORY);
|
||
CoTaskMemFree (wcp);
|
||
}
|
||
else
|
||
g_user_special_dirs[G_USER_DIRECTORY_DOWNLOAD] = get_special_folder (CSIDL_DESKTOPDIRECTORY);
|
||
}
|
||
|
||
g_user_special_dirs[G_USER_DIRECTORY_MUSIC] = get_special_folder (CSIDL_MYMUSIC);
|
||
g_user_special_dirs[G_USER_DIRECTORY_PICTURES] = get_special_folder (CSIDL_MYPICTURES);
|
||
|
||
if (p_SHGetKnownFolderPath == NULL)
|
||
{
|
||
/* XXX */
|
||
g_user_special_dirs[G_USER_DIRECTORY_PUBLIC_SHARE] = get_special_folder (CSIDL_COMMON_DOCUMENTS);
|
||
}
|
||
else
|
||
{
|
||
wcp = NULL;
|
||
(*p_SHGetKnownFolderPath) (&FOLDERID_Public, 0, NULL, &wcp);
|
||
if (wcp)
|
||
{
|
||
g_user_special_dirs[G_USER_DIRECTORY_PUBLIC_SHARE] = g_utf16_to_utf8 (wcp, -1, NULL, NULL, NULL);
|
||
if (g_user_special_dirs[G_USER_DIRECTORY_PUBLIC_SHARE] == NULL)
|
||
g_user_special_dirs[G_USER_DIRECTORY_PUBLIC_SHARE] = get_special_folder (CSIDL_COMMON_DOCUMENTS);
|
||
CoTaskMemFree (wcp);
|
||
}
|
||
else
|
||
g_user_special_dirs[G_USER_DIRECTORY_PUBLIC_SHARE] = get_special_folder (CSIDL_COMMON_DOCUMENTS);
|
||
}
|
||
|
||
g_user_special_dirs[G_USER_DIRECTORY_TEMPLATES] = get_special_folder (CSIDL_TEMPLATES);
|
||
g_user_special_dirs[G_USER_DIRECTORY_VIDEOS] = get_special_folder (CSIDL_MYVIDEO);
|
||
}
|
||
|
||
#else /* default is unix */
|
||
|
||
/* adapted from xdg-user-dir-lookup.c
|
||
*
|
||
* Copyright (C) 2007 Red Hat Inc.
|
||
*
|
||
* Permission is hereby granted, free of charge, to any person
|
||
* obtaining a copy of this software and associated documentation files
|
||
* (the "Software"), to deal in the Software without restriction,
|
||
* including without limitation the rights to use, copy, modify, merge,
|
||
* publish, distribute, sublicense, and/or sell copies of the Software,
|
||
* and to permit persons to whom the Software is furnished to do so,
|
||
* subject to the following conditions:
|
||
*
|
||
* The above copyright notice and this permission notice shall be
|
||
* included in all copies or substantial portions of the Software.
|
||
*
|
||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
||
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
||
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
||
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||
* SOFTWARE.
|
||
*/
|
||
static void
|
||
load_user_special_dirs (void)
|
||
{
|
||
gchar *config_dir = NULL;
|
||
gchar *config_file;
|
||
gchar *data;
|
||
gchar **lines;
|
||
gint n_lines, i;
|
||
|
||
config_dir = g_build_user_config_dir ();
|
||
config_file = g_build_filename (config_dir,
|
||
"user-dirs.dirs",
|
||
NULL);
|
||
g_free (config_dir);
|
||
|
||
if (!g_file_get_contents (config_file, &data, NULL, NULL))
|
||
{
|
||
g_free (config_file);
|
||
return;
|
||
}
|
||
|
||
lines = g_strsplit (data, "\n", -1);
|
||
n_lines = g_strv_length (lines);
|
||
g_free (data);
|
||
|
||
for (i = 0; i < n_lines; i++)
|
||
{
|
||
gchar *buffer = lines[i];
|
||
gchar *d, *p;
|
||
gint len;
|
||
gboolean is_relative = FALSE;
|
||
GUserDirectory directory;
|
||
|
||
/* Remove newline at end */
|
||
len = strlen (buffer);
|
||
if (len > 0 && buffer[len - 1] == '\n')
|
||
buffer[len - 1] = 0;
|
||
|
||
p = buffer;
|
||
while (*p == ' ' || *p == '\t')
|
||
p++;
|
||
|
||
if (strncmp (p, "XDG_DESKTOP_DIR", strlen ("XDG_DESKTOP_DIR")) == 0)
|
||
{
|
||
directory = G_USER_DIRECTORY_DESKTOP;
|
||
p += strlen ("XDG_DESKTOP_DIR");
|
||
}
|
||
else if (strncmp (p, "XDG_DOCUMENTS_DIR", strlen ("XDG_DOCUMENTS_DIR")) == 0)
|
||
{
|
||
directory = G_USER_DIRECTORY_DOCUMENTS;
|
||
p += strlen ("XDG_DOCUMENTS_DIR");
|
||
}
|
||
else if (strncmp (p, "XDG_DOWNLOAD_DIR", strlen ("XDG_DOWNLOAD_DIR")) == 0)
|
||
{
|
||
directory = G_USER_DIRECTORY_DOWNLOAD;
|
||
p += strlen ("XDG_DOWNLOAD_DIR");
|
||
}
|
||
else if (strncmp (p, "XDG_MUSIC_DIR", strlen ("XDG_MUSIC_DIR")) == 0)
|
||
{
|
||
directory = G_USER_DIRECTORY_MUSIC;
|
||
p += strlen ("XDG_MUSIC_DIR");
|
||
}
|
||
else if (strncmp (p, "XDG_PICTURES_DIR", strlen ("XDG_PICTURES_DIR")) == 0)
|
||
{
|
||
directory = G_USER_DIRECTORY_PICTURES;
|
||
p += strlen ("XDG_PICTURES_DIR");
|
||
}
|
||
else if (strncmp (p, "XDG_PUBLICSHARE_DIR", strlen ("XDG_PUBLICSHARE_DIR")) == 0)
|
||
{
|
||
directory = G_USER_DIRECTORY_PUBLIC_SHARE;
|
||
p += strlen ("XDG_PUBLICSHARE_DIR");
|
||
}
|
||
else if (strncmp (p, "XDG_TEMPLATES_DIR", strlen ("XDG_TEMPLATES_DIR")) == 0)
|
||
{
|
||
directory = G_USER_DIRECTORY_TEMPLATES;
|
||
p += strlen ("XDG_TEMPLATES_DIR");
|
||
}
|
||
else if (strncmp (p, "XDG_VIDEOS_DIR", strlen ("XDG_VIDEOS_DIR")) == 0)
|
||
{
|
||
directory = G_USER_DIRECTORY_VIDEOS;
|
||
p += strlen ("XDG_VIDEOS_DIR");
|
||
}
|
||
else
|
||
continue;
|
||
|
||
while (*p == ' ' || *p == '\t')
|
||
p++;
|
||
|
||
if (*p != '=')
|
||
continue;
|
||
p++;
|
||
|
||
while (*p == ' ' || *p == '\t')
|
||
p++;
|
||
|
||
if (*p != '"')
|
||
continue;
|
||
p++;
|
||
|
||
if (strncmp (p, "$HOME", 5) == 0)
|
||
{
|
||
p += 5;
|
||
is_relative = TRUE;
|
||
}
|
||
else if (*p != '/')
|
||
continue;
|
||
|
||
d = strrchr (p, '"');
|
||
if (!d)
|
||
continue;
|
||
*d = 0;
|
||
|
||
d = p;
|
||
|
||
/* remove trailing slashes */
|
||
len = strlen (d);
|
||
if (d[len - 1] == '/')
|
||
d[len - 1] = 0;
|
||
|
||
if (is_relative)
|
||
{
|
||
gchar *home_dir = g_build_home_dir ();
|
||
g_user_special_dirs[directory] = g_build_filename (home_dir, d, NULL);
|
||
g_free (home_dir);
|
||
}
|
||
else
|
||
g_user_special_dirs[directory] = g_strdup (d);
|
||
}
|
||
|
||
g_strfreev (lines);
|
||
g_free (config_file);
|
||
}
|
||
|
||
#endif /* platform-specific load_user_special_dirs implementations */
|
||
|
||
|
||
/**
|
||
* g_reload_user_special_dirs_cache:
|
||
*
|
||
* Resets the cache used for g_get_user_special_dir(), so
|
||
* that the latest on-disk version is used. Call this only
|
||
* if you just changed the data on disk yourself.
|
||
*
|
||
* Due to thread safety issues this may cause leaking of strings
|
||
* that were previously returned from g_get_user_special_dir()
|
||
* that can't be freed. We ensure to only leak the data for
|
||
* the directories that actually changed value though.
|
||
*
|
||
* Since: 2.22
|
||
*/
|
||
void
|
||
g_reload_user_special_dirs_cache (void)
|
||
{
|
||
int i;
|
||
|
||
G_LOCK (g_utils_global);
|
||
|
||
if (g_user_special_dirs != NULL)
|
||
{
|
||
/* save a copy of the pointer, to check if some memory can be preserved */
|
||
char **old_g_user_special_dirs = g_user_special_dirs;
|
||
char *old_val;
|
||
|
||
/* recreate and reload our cache */
|
||
g_user_special_dirs = g_new0 (gchar *, G_USER_N_DIRECTORIES);
|
||
load_user_special_dirs ();
|
||
|
||
/* only leak changed directories */
|
||
for (i = 0; i < G_USER_N_DIRECTORIES; i++)
|
||
{
|
||
old_val = old_g_user_special_dirs[i];
|
||
if (g_user_special_dirs[i] == NULL)
|
||
{
|
||
g_user_special_dirs[i] = old_val;
|
||
}
|
||
else if (g_strcmp0 (old_val, g_user_special_dirs[i]) == 0)
|
||
{
|
||
/* don't leak */
|
||
g_free (g_user_special_dirs[i]);
|
||
g_user_special_dirs[i] = old_val;
|
||
}
|
||
else
|
||
g_free (old_val);
|
||
}
|
||
|
||
/* free the old array */
|
||
g_free (old_g_user_special_dirs);
|
||
}
|
||
|
||
G_UNLOCK (g_utils_global);
|
||
}
|
||
|
||
/**
|
||
* g_get_user_special_dir:
|
||
* @directory: the logical id of special directory
|
||
*
|
||
* Returns the full path of a special directory using its logical id.
|
||
*
|
||
* On UNIX this is done using the XDG special user directories.
|
||
* For compatibility with existing practise, %G_USER_DIRECTORY_DESKTOP
|
||
* falls back to `$HOME/Desktop` when XDG special user directories have
|
||
* not been set up.
|
||
*
|
||
* Depending on the platform, the user might be able to change the path
|
||
* of the special directory without requiring the session to restart; GLib
|
||
* will not reflect any change once the special directories are loaded.
|
||
*
|
||
* Returns: (type filename): the path to the specified special directory, or
|
||
* %NULL if the logical id was not found. The returned string is owned by
|
||
* GLib and should not be modified or freed.
|
||
*
|
||
* Since: 2.14
|
||
*/
|
||
const gchar *
|
||
g_get_user_special_dir (GUserDirectory directory)
|
||
{
|
||
const gchar *user_special_dir;
|
||
|
||
g_return_val_if_fail (directory >= G_USER_DIRECTORY_DESKTOP &&
|
||
directory < G_USER_N_DIRECTORIES, NULL);
|
||
|
||
G_LOCK (g_utils_global);
|
||
|
||
if (G_UNLIKELY (g_user_special_dirs == NULL))
|
||
{
|
||
g_user_special_dirs = g_new0 (gchar *, G_USER_N_DIRECTORIES);
|
||
|
||
load_user_special_dirs ();
|
||
|
||
/* Special-case desktop for historical compatibility */
|
||
if (g_user_special_dirs[G_USER_DIRECTORY_DESKTOP] == NULL)
|
||
{
|
||
gchar *home_dir = g_build_home_dir ();
|
||
g_user_special_dirs[G_USER_DIRECTORY_DESKTOP] = g_build_filename (home_dir, "Desktop", NULL);
|
||
g_free (home_dir);
|
||
}
|
||
}
|
||
user_special_dir = g_user_special_dirs[directory];
|
||
|
||
G_UNLOCK (g_utils_global);
|
||
|
||
return user_special_dir;
|
||
}
|
||
|
||
#ifdef G_OS_WIN32
|
||
|
||
#undef g_get_system_data_dirs
|
||
|
||
static HMODULE
|
||
get_module_for_address (gconstpointer address)
|
||
{
|
||
/* Holds the g_utils_global lock */
|
||
|
||
static gboolean beenhere = FALSE;
|
||
typedef BOOL (WINAPI *t_GetModuleHandleExA) (DWORD, LPCTSTR, HMODULE *);
|
||
static t_GetModuleHandleExA p_GetModuleHandleExA = NULL;
|
||
HMODULE hmodule = NULL;
|
||
|
||
if (!address)
|
||
return NULL;
|
||
|
||
if (!beenhere)
|
||
{
|
||
p_GetModuleHandleExA =
|
||
(t_GetModuleHandleExA) GetProcAddress (GetModuleHandle ("kernel32.dll"),
|
||
"GetModuleHandleExA");
|
||
beenhere = TRUE;
|
||
}
|
||
|
||
if (p_GetModuleHandleExA == NULL ||
|
||
!(*p_GetModuleHandleExA) (GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT |
|
||
GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS,
|
||
address, &hmodule))
|
||
{
|
||
MEMORY_BASIC_INFORMATION mbi;
|
||
VirtualQuery (address, &mbi, sizeof (mbi));
|
||
hmodule = (HMODULE) mbi.AllocationBase;
|
||
}
|
||
|
||
return hmodule;
|
||
}
|
||
|
||
static gchar *
|
||
get_module_share_dir (gconstpointer address)
|
||
{
|
||
HMODULE hmodule;
|
||
gchar *filename;
|
||
gchar *retval;
|
||
|
||
hmodule = get_module_for_address (address);
|
||
if (hmodule == NULL)
|
||
return NULL;
|
||
|
||
filename = g_win32_get_package_installation_directory_of_module (hmodule);
|
||
retval = g_build_filename (filename, "share", NULL);
|
||
g_free (filename);
|
||
|
||
return retval;
|
||
}
|
||
|
||
static const gchar * const *
|
||
g_win32_get_system_data_dirs_for_module_real (void (*address_of_function)(void))
|
||
{
|
||
GArray *data_dirs;
|
||
HMODULE hmodule;
|
||
static GHashTable *per_module_data_dirs = NULL;
|
||
gchar **retval;
|
||
gchar *p;
|
||
gchar *exe_root;
|
||
|
||
hmodule = NULL;
|
||
if (address_of_function)
|
||
{
|
||
G_LOCK (g_utils_global);
|
||
hmodule = get_module_for_address (address_of_function);
|
||
if (hmodule != NULL)
|
||
{
|
||
if (per_module_data_dirs == NULL)
|
||
per_module_data_dirs = g_hash_table_new (NULL, NULL);
|
||
else
|
||
{
|
||
retval = g_hash_table_lookup (per_module_data_dirs, hmodule);
|
||
|
||
if (retval != NULL)
|
||
{
|
||
G_UNLOCK (g_utils_global);
|
||
return (const gchar * const *) retval;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
data_dirs = g_array_new (TRUE, TRUE, sizeof (char *));
|
||
|
||
/* Documents and Settings\All Users\Application Data */
|
||
p = get_special_folder (CSIDL_COMMON_APPDATA);
|
||
if (p)
|
||
g_array_append_val (data_dirs, p);
|
||
|
||
/* Documents and Settings\All Users\Documents */
|
||
p = get_special_folder (CSIDL_COMMON_DOCUMENTS);
|
||
if (p)
|
||
g_array_append_val (data_dirs, p);
|
||
|
||
/* Using the above subfolders of Documents and Settings perhaps
|
||
* makes sense from a Windows perspective.
|
||
*
|
||
* But looking at the actual use cases of this function in GTK+
|
||
* and GNOME software, what we really want is the "share"
|
||
* subdirectory of the installation directory for the package
|
||
* our caller is a part of.
|
||
*
|
||
* The address_of_function parameter, if non-NULL, points to a
|
||
* function in the calling module. Use that to determine that
|
||
* module's installation folder, and use its "share" subfolder.
|
||
*
|
||
* Additionally, also use the "share" subfolder of the installation
|
||
* locations of GLib and the .exe file being run.
|
||
*
|
||
* To guard against none of the above being what is really wanted,
|
||
* callers of this function should have Win32-specific code to look
|
||
* up their installation folder themselves, and handle a subfolder
|
||
* "share" of it in the same way as the folders returned from this
|
||
* function.
|
||
*/
|
||
|
||
p = get_module_share_dir (address_of_function);
|
||
if (p)
|
||
g_array_append_val (data_dirs, p);
|
||
|
||
if (glib_dll != NULL)
|
||
{
|
||
gchar *glib_root = g_win32_get_package_installation_directory_of_module (glib_dll);
|
||
p = g_build_filename (glib_root, "share", NULL);
|
||
if (p)
|
||
g_array_append_val (data_dirs, p);
|
||
g_free (glib_root);
|
||
}
|
||
|
||
exe_root = g_win32_get_package_installation_directory_of_module (NULL);
|
||
p = g_build_filename (exe_root, "share", NULL);
|
||
if (p)
|
||
g_array_append_val (data_dirs, p);
|
||
g_free (exe_root);
|
||
|
||
retval = (gchar **) g_array_free (data_dirs, FALSE);
|
||
|
||
if (address_of_function)
|
||
{
|
||
if (hmodule != NULL)
|
||
g_hash_table_insert (per_module_data_dirs, hmodule, retval);
|
||
G_UNLOCK (g_utils_global);
|
||
}
|
||
|
||
return (const gchar * const *) retval;
|
||
}
|
||
|
||
const gchar * const *
|
||
g_win32_get_system_data_dirs_for_module (void (*address_of_function)(void))
|
||
{
|
||
gboolean should_call_g_get_system_data_dirs;
|
||
|
||
should_call_g_get_system_data_dirs = TRUE;
|
||
/* These checks are the same as the ones that g_build_system_data_dirs() does.
|
||
* Please keep them in sync.
|
||
*/
|
||
G_LOCK (g_utils_global);
|
||
|
||
if (!g_system_data_dirs)
|
||
{
|
||
const gchar *data_dirs = g_getenv ("XDG_DATA_DIRS");
|
||
|
||
if (!data_dirs || !data_dirs[0])
|
||
should_call_g_get_system_data_dirs = FALSE;
|
||
}
|
||
|
||
G_UNLOCK (g_utils_global);
|
||
|
||
/* There is a subtle difference between g_win32_get_system_data_dirs_for_module (NULL),
|
||
* which is what GLib code can normally call,
|
||
* and g_win32_get_system_data_dirs_for_module (&_g_win32_get_system_data_dirs),
|
||
* which is what the inline function used by non-GLib code calls.
|
||
* The former gets prefix relative to currently-running executable,
|
||
* the latter - relative to the module that calls _g_win32_get_system_data_dirs()
|
||
* (disguised as g_get_system_data_dirs()), which could be an executable or
|
||
* a DLL that is located somewhere else.
|
||
* This is why that inline function in gutils.h exists, and why we can't just
|
||
* call g_get_system_data_dirs() from there - because we need to get the address
|
||
* local to the non-GLib caller-module.
|
||
*/
|
||
|
||
/*
|
||
* g_get_system_data_dirs() will fall back to calling
|
||
* g_win32_get_system_data_dirs_for_module_real(NULL) if XDG_DATA_DIRS is NULL
|
||
* or an empty string. The checks above ensure that we do not call it in such
|
||
* cases and use the address_of_function that we've been given by the inline function.
|
||
* The reason we're calling g_get_system_data_dirs /at all/ is to give
|
||
* XDG_DATA_DIRS precedence (if it is set).
|
||
*/
|
||
if (should_call_g_get_system_data_dirs)
|
||
return g_get_system_data_dirs ();
|
||
|
||
return g_win32_get_system_data_dirs_for_module_real (address_of_function);
|
||
}
|
||
|
||
#endif
|
||
|
||
static gchar **
|
||
g_build_system_data_dirs (void)
|
||
{
|
||
gchar **data_dir_vector = NULL;
|
||
gchar *data_dirs = (gchar *) g_getenv ("XDG_DATA_DIRS");
|
||
|
||
/* These checks are the same as the ones that g_win32_get_system_data_dirs_for_module()
|
||
* does. Please keep them in sync.
|
||
*/
|
||
#ifndef G_OS_WIN32
|
||
if (!data_dirs || !data_dirs[0])
|
||
data_dirs = "/usr/local/share/:/usr/share/";
|
||
|
||
data_dir_vector = g_strsplit (data_dirs, G_SEARCHPATH_SEPARATOR_S, 0);
|
||
#else
|
||
if (!data_dirs || !data_dirs[0])
|
||
data_dir_vector = g_strdupv ((gchar **) g_win32_get_system_data_dirs_for_module_real (NULL));
|
||
else
|
||
data_dir_vector = g_strsplit (data_dirs, G_SEARCHPATH_SEPARATOR_S, 0);
|
||
#endif
|
||
|
||
return g_steal_pointer (&data_dir_vector);
|
||
}
|
||
|
||
/**
|
||
* g_get_system_data_dirs:
|
||
*
|
||
* Returns an ordered list of base directories in which to access
|
||
* system-wide application data.
|
||
*
|
||
* On UNIX platforms this is determined using the mechanisms described
|
||
* in the
|
||
* [XDG Base Directory Specification](http://www.freedesktop.org/Standards/basedir-spec)
|
||
* In this case the list of directories retrieved will be `XDG_DATA_DIRS`.
|
||
*
|
||
* On Windows it follows XDG Base Directory Specification if `XDG_DATA_DIRS` is defined.
|
||
* If `XDG_DATA_DIRS` is undefined,
|
||
* the first elements in the list are the Application Data
|
||
* and Documents folders for All Users. (These can be determined only
|
||
* on Windows 2000 or later and are not present in the list on other
|
||
* Windows versions.) See documentation for CSIDL_COMMON_APPDATA and
|
||
* CSIDL_COMMON_DOCUMENTS.
|
||
*
|
||
* Then follows the "share" subfolder in the installation folder for
|
||
* the package containing the DLL that calls this function, if it can
|
||
* be determined.
|
||
*
|
||
* Finally the list contains the "share" subfolder in the installation
|
||
* folder for GLib, and in the installation folder for the package the
|
||
* application's .exe file belongs to.
|
||
*
|
||
* The installation folders above are determined by looking up the
|
||
* folder where the module (DLL or EXE) in question is located. If the
|
||
* folder's name is "bin", its parent is used, otherwise the folder
|
||
* itself.
|
||
*
|
||
* Note that on Windows the returned list can vary depending on where
|
||
* this function is called.
|
||
*
|
||
* Returns: (array zero-terminated=1) (element-type filename) (transfer none):
|
||
* a %NULL-terminated array of strings owned by GLib that must not be
|
||
* modified or freed.
|
||
*
|
||
* Since: 2.6
|
||
**/
|
||
const gchar * const *
|
||
g_get_system_data_dirs (void)
|
||
{
|
||
const gchar * const *system_data_dirs;
|
||
|
||
G_LOCK (g_utils_global);
|
||
|
||
if (g_system_data_dirs == NULL)
|
||
g_system_data_dirs = g_build_system_data_dirs ();
|
||
system_data_dirs = (const gchar * const *) g_system_data_dirs;
|
||
|
||
G_UNLOCK (g_utils_global);
|
||
|
||
return system_data_dirs;
|
||
}
|
||
|
||
static gchar **
|
||
g_build_system_config_dirs (void)
|
||
{
|
||
gchar **conf_dir_vector = NULL;
|
||
const gchar *conf_dirs = g_getenv ("XDG_CONFIG_DIRS");
|
||
#ifdef G_OS_WIN32
|
||
if (conf_dirs)
|
||
{
|
||
conf_dir_vector = g_strsplit (conf_dirs, G_SEARCHPATH_SEPARATOR_S, 0);
|
||
}
|
||
else
|
||
{
|
||
gchar *special_conf_dirs = get_special_folder (CSIDL_COMMON_APPDATA);
|
||
|
||
if (special_conf_dirs)
|
||
conf_dir_vector = g_strsplit (special_conf_dirs, G_SEARCHPATH_SEPARATOR_S, 0);
|
||
else
|
||
/* Return empty list */
|
||
conf_dir_vector = g_strsplit ("", G_SEARCHPATH_SEPARATOR_S, 0);
|
||
|
||
g_free (special_conf_dirs);
|
||
}
|
||
#else
|
||
if (!conf_dirs || !conf_dirs[0])
|
||
conf_dirs = "/etc/xdg";
|
||
|
||
conf_dir_vector = g_strsplit (conf_dirs, G_SEARCHPATH_SEPARATOR_S, 0);
|
||
#endif
|
||
|
||
return g_steal_pointer (&conf_dir_vector);
|
||
}
|
||
|
||
/**
|
||
* g_get_system_config_dirs:
|
||
*
|
||
* Returns an ordered list of base directories in which to access
|
||
* system-wide configuration information.
|
||
*
|
||
* On UNIX platforms this is determined using the mechanisms described
|
||
* in the
|
||
* [XDG Base Directory Specification](http://www.freedesktop.org/Standards/basedir-spec).
|
||
* In this case the list of directories retrieved will be `XDG_CONFIG_DIRS`.
|
||
*
|
||
* On Windows it follows XDG Base Directory Specification if `XDG_CONFIG_DIRS` is defined.
|
||
* If `XDG_CONFIG_DIRS` is undefined, the directory that contains application
|
||
* data for all users is used instead. A typical path is
|
||
* `C:\Documents and Settings\All Users\Application Data`.
|
||
* This folder is used for application data
|
||
* that is not user specific. For example, an application can store
|
||
* a spell-check dictionary, a database of clip art, or a log file in the
|
||
* CSIDL_COMMON_APPDATA folder. This information will not roam and is available
|
||
* to anyone using the computer.
|
||
*
|
||
* Returns: (array zero-terminated=1) (element-type filename) (transfer none):
|
||
* a %NULL-terminated array of strings owned by GLib that must not be
|
||
* modified or freed.
|
||
*
|
||
* Since: 2.6
|
||
**/
|
||
const gchar * const *
|
||
g_get_system_config_dirs (void)
|
||
{
|
||
const gchar * const *system_config_dirs;
|
||
|
||
G_LOCK (g_utils_global);
|
||
|
||
if (g_system_config_dirs == NULL)
|
||
g_system_config_dirs = g_build_system_config_dirs ();
|
||
system_config_dirs = (const gchar * const *) g_system_config_dirs;
|
||
|
||
G_UNLOCK (g_utils_global);
|
||
|
||
return system_config_dirs;
|
||
}
|
||
|
||
/**
|
||
* g_nullify_pointer:
|
||
* @nullify_location: (not nullable): the memory address of the pointer.
|
||
*
|
||
* Set the pointer at the specified location to %NULL.
|
||
**/
|
||
void
|
||
g_nullify_pointer (gpointer *nullify_location)
|
||
{
|
||
g_return_if_fail (nullify_location != NULL);
|
||
|
||
*nullify_location = NULL;
|
||
}
|
||
|
||
#define KILOBYTE_FACTOR (G_GOFFSET_CONSTANT (1000))
|
||
#define MEGABYTE_FACTOR (KILOBYTE_FACTOR * KILOBYTE_FACTOR)
|
||
#define GIGABYTE_FACTOR (MEGABYTE_FACTOR * KILOBYTE_FACTOR)
|
||
#define TERABYTE_FACTOR (GIGABYTE_FACTOR * KILOBYTE_FACTOR)
|
||
#define PETABYTE_FACTOR (TERABYTE_FACTOR * KILOBYTE_FACTOR)
|
||
#define EXABYTE_FACTOR (PETABYTE_FACTOR * KILOBYTE_FACTOR)
|
||
|
||
#define KIBIBYTE_FACTOR (G_GOFFSET_CONSTANT (1024))
|
||
#define MEBIBYTE_FACTOR (KIBIBYTE_FACTOR * KIBIBYTE_FACTOR)
|
||
#define GIBIBYTE_FACTOR (MEBIBYTE_FACTOR * KIBIBYTE_FACTOR)
|
||
#define TEBIBYTE_FACTOR (GIBIBYTE_FACTOR * KIBIBYTE_FACTOR)
|
||
#define PEBIBYTE_FACTOR (TEBIBYTE_FACTOR * KIBIBYTE_FACTOR)
|
||
#define EXBIBYTE_FACTOR (PEBIBYTE_FACTOR * KIBIBYTE_FACTOR)
|
||
|
||
/**
|
||
* g_format_size:
|
||
* @size: a size in bytes
|
||
*
|
||
* Formats a size (for example the size of a file) into a human readable
|
||
* string. Sizes are rounded to the nearest size prefix (kB, MB, GB)
|
||
* and are displayed rounded to the nearest tenth. E.g. the file size
|
||
* 3292528 bytes will be converted into the string "3.2 MB". The returned string
|
||
* is UTF-8, and may use a non-breaking space to separate the number and units,
|
||
* to ensure they aren’t separated when line wrapped.
|
||
*
|
||
* The prefix units base is 1000 (i.e. 1 kB is 1000 bytes).
|
||
*
|
||
* This string should be freed with g_free() when not needed any longer.
|
||
*
|
||
* See g_format_size_full() for more options about how the size might be
|
||
* formatted.
|
||
*
|
||
* Returns: (transfer full): a newly-allocated formatted string containing
|
||
* a human readable file size
|
||
*
|
||
* Since: 2.30
|
||
*/
|
||
gchar *
|
||
g_format_size (guint64 size)
|
||
{
|
||
return g_format_size_full (size, G_FORMAT_SIZE_DEFAULT);
|
||
}
|
||
|
||
/**
|
||
* GFormatSizeFlags:
|
||
* @G_FORMAT_SIZE_DEFAULT: behave the same as g_format_size()
|
||
* @G_FORMAT_SIZE_LONG_FORMAT: include the exact number of bytes as part
|
||
* of the returned string. For example, "45.6 kB (45,612 bytes)".
|
||
* @G_FORMAT_SIZE_IEC_UNITS: use IEC (base 1024) units with "KiB"-style
|
||
* suffixes. IEC units should only be used for reporting things with
|
||
* a strong "power of 2" basis, like RAM sizes or RAID stripe sizes.
|
||
* Network and storage sizes should be reported in the normal SI units.
|
||
* @G_FORMAT_SIZE_BITS: set the size as a quantity in bits, rather than
|
||
* bytes, and return units in bits. For example, ‘Mb’ rather than ‘MB’.
|
||
*
|
||
* Flags to modify the format of the string returned by g_format_size_full().
|
||
*/
|
||
|
||
#pragma GCC diagnostic push
|
||
#pragma GCC diagnostic ignored "-Wformat-nonliteral"
|
||
|
||
/**
|
||
* g_format_size_full:
|
||
* @size: a size in bytes
|
||
* @flags: #GFormatSizeFlags to modify the output
|
||
*
|
||
* Formats a size.
|
||
*
|
||
* This function is similar to g_format_size() but allows for flags
|
||
* that modify the output. See #GFormatSizeFlags.
|
||
*
|
||
* Returns: (transfer full): a newly-allocated formatted string
|
||
* containing a human readable file size
|
||
*
|
||
* Since: 2.30
|
||
*/
|
||
gchar *
|
||
g_format_size_full (guint64 size,
|
||
GFormatSizeFlags flags)
|
||
{
|
||
struct Format
|
||
{
|
||
guint64 factor;
|
||
char string[10];
|
||
};
|
||
|
||
typedef enum
|
||
{
|
||
FORMAT_BYTES,
|
||
FORMAT_BYTES_IEC,
|
||
FORMAT_BITS,
|
||
FORMAT_BITS_IEC
|
||
} FormatIndex;
|
||
|
||
const struct Format formats[4][6] = {
|
||
{
|
||
/* Translators: Keep the no-break space between %.1f and the unit symbol */
|
||
{ KILOBYTE_FACTOR, N_("%.1f kB") },
|
||
/* Translators: Keep the no-break space between %.1f and the unit symbol */
|
||
{ MEGABYTE_FACTOR, N_("%.1f MB") },
|
||
/* Translators: Keep the no-break space between %.1f and the unit symbol */
|
||
{ GIGABYTE_FACTOR, N_("%.1f GB") },
|
||
/* Translators: Keep the no-break space between %.1f and the unit symbol */
|
||
{ TERABYTE_FACTOR, N_("%.1f TB") },
|
||
/* Translators: Keep the no-break space between %.1f and the unit symbol */
|
||
{ PETABYTE_FACTOR, N_("%.1f PB") },
|
||
/* Translators: Keep the no-break space between %.1f and the unit symbol */
|
||
{ EXABYTE_FACTOR, N_("%.1f EB") }
|
||
},
|
||
{
|
||
/* Translators: Keep the no-break space between %.1f and the unit symbol */
|
||
{ KIBIBYTE_FACTOR, N_("%.1f KiB") },
|
||
/* Translators: Keep the no-break space between %.1f and the unit symbol */
|
||
{ MEBIBYTE_FACTOR, N_("%.1f MiB") },
|
||
/* Translators: Keep the no-break space between %.1f and the unit symbol */
|
||
{ GIBIBYTE_FACTOR, N_("%.1f GiB") },
|
||
/* Translators: Keep the no-break space between %.1f and the unit symbol */
|
||
{ TEBIBYTE_FACTOR, N_("%.1f TiB") },
|
||
/* Translators: Keep the no-break space between %.1f and the unit symbol */
|
||
{ PEBIBYTE_FACTOR, N_("%.1f PiB") },
|
||
/* Translators: Keep the no-break space between %.1f and the unit symbol */
|
||
{ EXBIBYTE_FACTOR, N_("%.1f EiB") }
|
||
},
|
||
{
|
||
/* Translators: Keep the no-break space between %.1f and the unit symbol */
|
||
{ KILOBYTE_FACTOR, N_("%.1f kb") },
|
||
/* Translators: Keep the no-break space between %.1f and the unit symbol */
|
||
{ MEGABYTE_FACTOR, N_("%.1f Mb") },
|
||
/* Translators: Keep the no-break space between %.1f and the unit symbol */
|
||
{ GIGABYTE_FACTOR, N_("%.1f Gb") },
|
||
/* Translators: Keep the no-break space between %.1f and the unit symbol */
|
||
{ TERABYTE_FACTOR, N_("%.1f Tb") },
|
||
/* Translators: Keep the no-break space between %.1f and the unit symbol */
|
||
{ PETABYTE_FACTOR, N_("%.1f Pb") },
|
||
/* Translators: Keep the no-break space between %.1f and the unit symbol */
|
||
{ EXABYTE_FACTOR, N_("%.1f Eb") }
|
||
},
|
||
{
|
||
/* Translators: Keep the no-break space between %.1f and the unit symbol */
|
||
{ KIBIBYTE_FACTOR, N_("%.1f Kib") },
|
||
/* Translators: Keep the no-break space between %.1f and the unit symbol */
|
||
{ MEBIBYTE_FACTOR, N_("%.1f Mib") },
|
||
/* Translators: Keep the no-break space between %.1f and the unit symbol */
|
||
{ GIBIBYTE_FACTOR, N_("%.1f Gib") },
|
||
/* Translators: Keep the no-break space between %.1f and the unit symbol */
|
||
{ TEBIBYTE_FACTOR, N_("%.1f Tib") },
|
||
/* Translators: Keep the no-break space between %.1f and the unit symbol */
|
||
{ PEBIBYTE_FACTOR, N_("%.1f Pib") },
|
||
/* Translators: Keep the no-break space between %.1f and the unit symbol */
|
||
{ EXBIBYTE_FACTOR, N_("%.1f Eib") }
|
||
}
|
||
};
|
||
|
||
GString *string;
|
||
FormatIndex index;
|
||
|
||
string = g_string_new (NULL);
|
||
|
||
switch (flags & ~G_FORMAT_SIZE_LONG_FORMAT)
|
||
{
|
||
case G_FORMAT_SIZE_DEFAULT:
|
||
index = FORMAT_BYTES;
|
||
break;
|
||
case (G_FORMAT_SIZE_DEFAULT | G_FORMAT_SIZE_IEC_UNITS):
|
||
index = FORMAT_BYTES_IEC;
|
||
break;
|
||
case G_FORMAT_SIZE_BITS:
|
||
index = FORMAT_BITS;
|
||
break;
|
||
case (G_FORMAT_SIZE_BITS | G_FORMAT_SIZE_IEC_UNITS):
|
||
index = FORMAT_BITS_IEC;
|
||
break;
|
||
default:
|
||
g_assert_not_reached ();
|
||
}
|
||
|
||
|
||
if (size < formats[index][0].factor)
|
||
{
|
||
const char * format;
|
||
|
||
if (index == FORMAT_BYTES || index == FORMAT_BYTES_IEC)
|
||
{
|
||
format = g_dngettext (GETTEXT_PACKAGE, "%u byte", "%u bytes", (guint) size);
|
||
}
|
||
else
|
||
{
|
||
format = g_dngettext (GETTEXT_PACKAGE, "%u bit", "%u bits", (guint) size);
|
||
}
|
||
|
||
g_string_printf (string, format, (guint) size);
|
||
|
||
flags &= ~G_FORMAT_SIZE_LONG_FORMAT;
|
||
}
|
||
else
|
||
{
|
||
const gsize n = G_N_ELEMENTS (formats[index]);
|
||
gsize i;
|
||
|
||
/*
|
||
* Point the last format (the highest unit) by default
|
||
* and then then scan all formats, starting with the 2nd one
|
||
* because the 1st is already managed by with the plural form
|
||
*/
|
||
const struct Format * f = &formats[index][n - 1];
|
||
|
||
for (i = 1; i < n; i++)
|
||
{
|
||
if (size < formats[index][i].factor)
|
||
{
|
||
f = &formats[index][i - 1];
|
||
break;
|
||
}
|
||
}
|
||
|
||
g_string_printf (string, _(f->string), (gdouble) size / (gdouble) f->factor);
|
||
}
|
||
|
||
if (flags & G_FORMAT_SIZE_LONG_FORMAT)
|
||
{
|
||
/* First problem: we need to use the number of bytes to decide on
|
||
* the plural form that is used for display, but the number of
|
||
* bytes potentially exceeds the size of a guint (which is what
|
||
* ngettext() takes).
|
||
*
|
||
* From a pragmatic standpoint, it seems that all known languages
|
||
* base plural forms on one or both of the following:
|
||
*
|
||
* - the lowest digits of the number
|
||
*
|
||
* - if the number if greater than some small value
|
||
*
|
||
* Here's how we fake it: Draw an arbitrary line at one thousand.
|
||
* If the number is below that, then fine. If it is above it,
|
||
* then we take the modulus of the number by one thousand (in
|
||
* order to keep the lowest digits) and add one thousand to that
|
||
* (in order to ensure that 1001 is not treated the same as 1).
|
||
*/
|
||
guint plural_form = size < 1000 ? size : size % 1000 + 1000;
|
||
|
||
/* Second problem: we need to translate the string "%u byte/bit" and
|
||
* "%u bytes/bits" for pluralisation, but the correct number format to
|
||
* use for a gsize is different depending on which architecture
|
||
* we're on.
|
||
*
|
||
* Solution: format the number separately and use "%s bytes/bits" on
|
||
* all platforms.
|
||
*/
|
||
const gchar *translated_format;
|
||
gchar *formatted_number;
|
||
|
||
if (index == FORMAT_BYTES || index == FORMAT_BYTES_IEC)
|
||
{
|
||
/* Translators: the %s in "%s bytes" will always be replaced by a number. */
|
||
translated_format = g_dngettext (GETTEXT_PACKAGE, "%s byte", "%s bytes", plural_form);
|
||
}
|
||
else
|
||
{
|
||
/* Translators: the %s in "%s bits" will always be replaced by a number. */
|
||
translated_format = g_dngettext (GETTEXT_PACKAGE, "%s bit", "%s bits", plural_form);
|
||
}
|
||
formatted_number = g_strdup_printf ("%'"G_GUINT64_FORMAT, size);
|
||
|
||
g_string_append (string, " (");
|
||
g_string_append_printf (string, translated_format, formatted_number);
|
||
g_free (formatted_number);
|
||
g_string_append (string, ")");
|
||
}
|
||
|
||
return g_string_free (string, FALSE);
|
||
}
|
||
|
||
#pragma GCC diagnostic pop
|
||
|
||
/**
|
||
* g_format_size_for_display:
|
||
* @size: a size in bytes
|
||
*
|
||
* Formats a size (for example the size of a file) into a human
|
||
* readable string. Sizes are rounded to the nearest size prefix
|
||
* (KB, MB, GB) and are displayed rounded to the nearest tenth.
|
||
* E.g. the file size 3292528 bytes will be converted into the
|
||
* string "3.1 MB".
|
||
*
|
||
* The prefix units base is 1024 (i.e. 1 KB is 1024 bytes).
|
||
*
|
||
* This string should be freed with g_free() when not needed any longer.
|
||
*
|
||
* Returns: (transfer full): a newly-allocated formatted string
|
||
* containing a human readable file size
|
||
*
|
||
* Since: 2.16
|
||
*
|
||
* Deprecated:2.30: This function is broken due to its use of SI
|
||
* suffixes to denote IEC units. Use g_format_size() instead.
|
||
*/
|
||
gchar *
|
||
g_format_size_for_display (goffset size)
|
||
{
|
||
if (size < (goffset) KIBIBYTE_FACTOR)
|
||
return g_strdup_printf (g_dngettext(GETTEXT_PACKAGE, "%u byte", "%u bytes",(guint) size), (guint) size);
|
||
else
|
||
{
|
||
gdouble displayed_size;
|
||
|
||
if (size < (goffset) MEBIBYTE_FACTOR)
|
||
{
|
||
displayed_size = (gdouble) size / (gdouble) KIBIBYTE_FACTOR;
|
||
/* Translators: this is from the deprecated function g_format_size_for_display() which uses 'KB' to
|
||
* mean 1024 bytes. I am aware that 'KB' is not correct, but it has been preserved for reasons of
|
||
* compatibility. Users will not see this string unless a program is using this deprecated function.
|
||
* Please translate as literally as possible.
|
||
*/
|
||
return g_strdup_printf (_("%.1f KB"), displayed_size);
|
||
}
|
||
else if (size < (goffset) GIBIBYTE_FACTOR)
|
||
{
|
||
displayed_size = (gdouble) size / (gdouble) MEBIBYTE_FACTOR;
|
||
return g_strdup_printf (_("%.1f MB"), displayed_size);
|
||
}
|
||
else if (size < (goffset) TEBIBYTE_FACTOR)
|
||
{
|
||
displayed_size = (gdouble) size / (gdouble) GIBIBYTE_FACTOR;
|
||
return g_strdup_printf (_("%.1f GB"), displayed_size);
|
||
}
|
||
else if (size < (goffset) PEBIBYTE_FACTOR)
|
||
{
|
||
displayed_size = (gdouble) size / (gdouble) TEBIBYTE_FACTOR;
|
||
return g_strdup_printf (_("%.1f TB"), displayed_size);
|
||
}
|
||
else if (size < (goffset) EXBIBYTE_FACTOR)
|
||
{
|
||
displayed_size = (gdouble) size / (gdouble) PEBIBYTE_FACTOR;
|
||
return g_strdup_printf (_("%.1f PB"), displayed_size);
|
||
}
|
||
else
|
||
{
|
||
displayed_size = (gdouble) size / (gdouble) EXBIBYTE_FACTOR;
|
||
return g_strdup_printf (_("%.1f EB"), displayed_size);
|
||
}
|
||
}
|
||
}
|
||
|
||
#if defined (G_OS_WIN32) && !defined (_WIN64)
|
||
|
||
/* Binary compatibility versions. Not for newly compiled code. */
|
||
|
||
_GLIB_EXTERN const gchar *g_get_user_name_utf8 (void);
|
||
_GLIB_EXTERN const gchar *g_get_real_name_utf8 (void);
|
||
_GLIB_EXTERN const gchar *g_get_home_dir_utf8 (void);
|
||
_GLIB_EXTERN const gchar *g_get_tmp_dir_utf8 (void);
|
||
_GLIB_EXTERN gchar *g_find_program_in_path_utf8 (const gchar *program);
|
||
|
||
gchar *
|
||
g_find_program_in_path_utf8 (const gchar *program)
|
||
{
|
||
return g_find_program_in_path (program);
|
||
}
|
||
|
||
const gchar *g_get_user_name_utf8 (void) { return g_get_user_name (); }
|
||
const gchar *g_get_real_name_utf8 (void) { return g_get_real_name (); }
|
||
const gchar *g_get_home_dir_utf8 (void) { return g_get_home_dir (); }
|
||
const gchar *g_get_tmp_dir_utf8 (void) { return g_get_tmp_dir (); }
|
||
|
||
#endif
|
||
|
||
/* Private API:
|
||
*
|
||
* Returns %TRUE if the current process was executed as setuid
|
||
*/
|
||
gboolean
|
||
g_check_setuid (void)
|
||
{
|
||
#if defined(HAVE_SYS_AUXV_H) && defined(HAVE_GETAUXVAL) && defined(AT_SECURE)
|
||
unsigned long value;
|
||
int errsv;
|
||
|
||
errno = 0;
|
||
value = getauxval (AT_SECURE);
|
||
errsv = errno;
|
||
if (errsv)
|
||
g_error ("getauxval () failed: %s", g_strerror (errsv));
|
||
return value;
|
||
#elif defined(HAVE_ISSETUGID) && !defined(__BIONIC__)
|
||
/* BSD: http://www.freebsd.org/cgi/man.cgi?query=issetugid&sektion=2 */
|
||
|
||
/* Android had it in older versions but the new 64 bit ABI does not
|
||
* have it anymore, and some versions of the 32 bit ABI neither.
|
||
* https://code.google.com/p/android-developer-preview/issues/detail?id=168
|
||
*/
|
||
return issetugid ();
|
||
#elif defined(G_OS_UNIX)
|
||
uid_t ruid, euid, suid; /* Real, effective and saved user ID's */
|
||
gid_t rgid, egid, sgid; /* Real, effective and saved group ID's */
|
||
|
||
static gsize check_setuid_initialised;
|
||
static gboolean is_setuid;
|
||
|
||
if (g_once_init_enter (&check_setuid_initialised))
|
||
{
|
||
#ifdef HAVE_GETRESUID
|
||
/* These aren't in the header files, so we prototype them here.
|
||
*/
|
||
int getresuid(uid_t *ruid, uid_t *euid, uid_t *suid);
|
||
int getresgid(gid_t *rgid, gid_t *egid, gid_t *sgid);
|
||
|
||
if (getresuid (&ruid, &euid, &suid) != 0 ||
|
||
getresgid (&rgid, &egid, &sgid) != 0)
|
||
#endif /* HAVE_GETRESUID */
|
||
{
|
||
suid = ruid = getuid ();
|
||
sgid = rgid = getgid ();
|
||
euid = geteuid ();
|
||
egid = getegid ();
|
||
}
|
||
|
||
is_setuid = (ruid != euid || ruid != suid ||
|
||
rgid != egid || rgid != sgid);
|
||
|
||
g_once_init_leave (&check_setuid_initialised, 1);
|
||
}
|
||
return is_setuid;
|
||
#else
|
||
return FALSE;
|
||
#endif
|
||
}
|
||
|
||
#ifdef G_OS_WIN32
|
||
/**
|
||
* g_abort:
|
||
*
|
||
* A wrapper for the POSIX abort() function.
|
||
*
|
||
* On Windows it is a function that makes extra effort (including a call
|
||
* to abort()) to ensure that a debugger-catchable exception is thrown
|
||
* before the program terminates.
|
||
*
|
||
* See your C library manual for more details about abort().
|
||
*
|
||
* Since: 2.50
|
||
*/
|
||
void
|
||
g_abort (void)
|
||
{
|
||
/* One call to break the debugger */
|
||
DebugBreak ();
|
||
/* One call in case CRT does get saner about abort() behaviour */
|
||
abort ();
|
||
/* And one call to bind them all and terminate the program for sure */
|
||
ExitProcess (127);
|
||
}
|
||
#endif
|