gtk2/gtk/gtkwin32.c
Kalev Lember b21dd67d60 win32: Don't crash when installed in a top-level directory
Avoid NULL-pointer dereference when package installation directory
doesn't contain any slashes.

Reported by Paweł Forysiuk.
2012-02-09 17:58:21 +02:00

141 lines
3.5 KiB
C

/* GTK - The GIMP Toolkit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#include "config.h"
#include "gdk/gdk.h"
#include "gtkprivate.h"
#define STRICT
#include <windows.h>
#undef STRICT
static HMODULE gtk_dll;
BOOL WINAPI
DllMain (HINSTANCE hinstDLL,
DWORD fdwReason,
LPVOID lpvReserved)
{
switch (fdwReason)
{
case DLL_PROCESS_ATTACH:
gtk_dll = (HMODULE) hinstDLL;
break;
}
return TRUE;
}
const gchar *
_gtk_get_libdir (void)
{
static char *gtk_libdir = NULL;
if (gtk_libdir == NULL)
{
gchar *root = g_win32_get_package_installation_directory_of_module (gtk_dll);
gchar *slash = strrchr (root, '\\');
if (slash != NULL &&
g_ascii_strcasecmp (slash + 1, ".libs") == 0)
gtk_libdir = GTK_LIBDIR;
else
gtk_libdir = g_build_filename (root, "lib", NULL);
g_free (root);
}
return gtk_libdir;
}
const gchar *
_gtk_get_localedir (void)
{
static char *gtk_localedir = NULL;
if (gtk_localedir == NULL)
{
const gchar *p;
gchar *root, *temp;
/* GTK_LOCALEDIR ends in either /lib/locale or
* /share/locale. Scan for that slash.
*/
p = GTK_LOCALEDIR + strlen (GTK_LOCALEDIR);
while (*--p != '/')
;
while (*--p != '/')
;
root = g_win32_get_package_installation_directory_of_module (gtk_dll);
temp = g_build_filename (root, p, NULL);
g_free (root);
/* gtk_localedir is passed to bindtextdomain() which isn't
* UTF-8-aware.
*/
gtk_localedir = g_win32_locale_filename_from_utf8 (temp);
g_free (temp);
}
return gtk_localedir;
}
const gchar *
_gtk_get_datadir (void)
{
static char *gtk_datadir = NULL;
if (gtk_datadir == NULL)
{
gchar *root = g_win32_get_package_installation_directory_of_module (gtk_dll);
gtk_datadir = g_build_filename (root, "share", NULL);
g_free (root);
}
return gtk_datadir;
}
const gchar *
_gtk_get_sysconfdir (void)
{
static char *gtk_sysconfdir = NULL;
if (gtk_sysconfdir == NULL)
{
gchar *root = g_win32_get_package_installation_directory_of_module (gtk_dll);
gtk_sysconfdir = g_build_filename (root, "etc", NULL);
g_free (root);
}
return gtk_sysconfdir;
}
const gchar *
_gtk_get_data_prefix (void)
{
static char *gtk_data_prefix = NULL;
if (gtk_data_prefix == NULL)
gtk_data_prefix = g_win32_get_package_installation_directory_of_module (gtk_dll);
return gtk_data_prefix;
}