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Implemented _g_get_unix_mounts() based on libmount

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https://bugzilla.gnome.org/show_bug.cgi?id=522053
This commit is contained in:
Mario Sanchez Prada 2016-07-19 12:04:27 +01:00
parent 8d5cf2df10
commit 030594777a
1 changed files with 95 additions and 12 deletions
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107
gio/gunixmounts.c
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@ -326,25 +326,92 @@ guess_system_internal (const char *mountpoint,
/* GUnixMounts (ie: mtab) implementations {{{1 */
static GUnixMountEntry *
create_unix_mount_entry (const char *device_path,
const char *mount_path,
const char *filesystem_type,
gboolean is_read_only)
{
GUnixMountEntry *mount_entry = NULL;
mount_entry = g_new0 (GUnixMountEntry, 1);
mount_entry->device_path = g_strdup (device_path);
mount_entry->mount_path = g_strdup (mount_path);
mount_entry->filesystem_type = g_strdup (filesystem_type);
mount_entry->is_read_only = is_read_only;
mount_entry->is_system_internal =
guess_system_internal (mount_entry->mount_path,
mount_entry->filesystem_type,
mount_entry->device_path);
return mount_entry;
}
/* mntent.h (Linux, GNU, NSS) {{{2 */
#ifdef HAVE_MNTENT_H
static char *
get_mtab_read_file (void)
#ifdef HAVE_LIBMOUNT
static GList *
_g_get_unix_mounts (void)
{
#ifdef _PATH_MOUNTED
# ifdef __linux__
return "/proc/mounts";
# else
return _PATH_MOUNTED;
# endif
#else
return "/etc/mtab";
#endif
struct libmnt_table *table = NULL;
struct libmnt_context *ctxt = NULL;
struct libmnt_iter* iter = NULL;
struct libmnt_fs *fs = NULL;
GUnixMountEntry *mount_entry = NULL;
GList *return_list = NULL;
ctxt = mnt_new_context ();
mnt_context_get_table (ctxt, "/proc/self/mountinfo", &table);
if (!table)
mnt_context_get_mtab (ctxt, &table);
/* Not much to do if neither mountinfo nor mtab are available */
if (!table)
return NULL;
iter = mnt_new_iter (MNT_ITER_FORWARD);
while (mnt_table_next_fs (table, iter, &fs) == 0)
{
const char *device_path = NULL;
char *mount_options = NULL;
unsigned long mount_flags = 0;
gboolean is_read_only = FALSE;
if (!mnt_table_is_fs_mounted (table, fs))
continue;
device_path = mnt_fs_get_source (fs);
if (g_strcmp0 (device_path, "/dev/root") == 0)
device_path = _resolve_dev_root ();
mount_options = mnt_fs_strdup_options (fs);
if (mount_options)
{
mnt_optstr_get_flags (mount_options, &mount_flags, mnt_get_builtin_optmap (MNT_LINUX_MAP));
g_free (mount_options);
}
is_read_only = (mount_flags & MS_RDONLY) ? TRUE : FALSE;
mount_entry = create_unix_mount_entry (device_path,
mnt_fs_get_target (fs),
mnt_fs_get_fstype (fs),
is_read_only);
return_list = g_list_prepend (return_list, mount_entry);
}
mnt_free_iter (iter);
mnt_free_context (ctxt);
return g_list_reverse (return_list);
}
#else
static char *
get_mtab_monitor_file (void)
get_mtab_read_file (void)
{
#ifdef _PATH_MOUNTED
# ifdef __linux__
@ -442,6 +509,22 @@ _g_get_unix_mounts (void)
return g_list_reverse (return_list);
}
#endif /* HAVE_LIBMOUNT */
static char *
get_mtab_monitor_file (void)
{
#ifdef _PATH_MOUNTED
# ifdef __linux__
return "/proc/mounts";
# else
return _PATH_MOUNTED;
# endif
#else
return "/etc/mtab";
#endif
}
/* mnttab.h {{{2 */
#elif defined (HAVE_SYS_MNTTAB_H)