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/*
* Copyright © 2012 Canonical Limited
*
* 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 licence, 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.
*
* Author: Ryan Lortie <desrt@desrt.ca>
*/
#include "dconf-shm.h"
#include <glib.h>
#include <sys/statfs.h>
#ifndef ECRYPTFS_SUPER_MAGIC
#define ECRYPTFS_SUPER_MAGIC 0xf15f
#endif
#ifndef NFS_SUPER_MAGIC
#define NFS_SUPER_MAGIC 0x6969
#endif
/* returns TRUE if the filesystem is capable */
static gboolean
dconf_shm_check (const gchar *filename)
{
struct statfs buf;
if (statfs (filename, &buf) != 0)
return FALSE;
return buf.f_type != NFS_SUPER_MAGIC && buf.f_type != ECRYPTFS_SUPER_MAGIC;
}
gboolean
dconf_shm_homedir_is_native (void)
{
static gsize homedir_is_native;
if (g_once_init_enter (&homedir_is_native))
{
gboolean is_native;
is_native = dconf_shm_check (g_get_home_dir ());
g_once_init_leave (&homedir_is_native, is_native + 1);
}
return homedir_is_native - 1;
}
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