/* Use vfs-type to look for a filesystem of some sort on 'dev'.
* Apart from some types which we ignore, add the result to the
* 'ret' string list.
*/
static void
check_with_vfs_type (guestfs_h *g, const char *device,
char ***ret, size_t *ret_size)
{
char *v;
char *vfs_type;
guestfs_push_error_handler (g, NULL, NULL);
vfs_type = guestfs_vfs_type (g, device);
guestfs_pop_error_handler (g);
if (!vfs_type)
v = safe_strdup (g, "unknown");
else if (STREQ (vfs_type, "")) {
v = safe_strdup (g, "unknown");
free (vfs_type);
}
else if (STREQ (vfs_type, "btrfs")) {
CLEANUP_FREE_BTRFSSUBVOLUME_LIST struct guestfs_btrfssubvolume_list *vols =
guestfs_btrfs_subvolume_list (g, device);
for (size_t i = 0; i < vols->len; i++) {
struct guestfs_btrfssubvolume *this = &vols->val[i];
char *mountable = safe_asprintf (g, "btrfsvol:%s/%s",
device, this->btrfssubvolume_path);
add_vfs (g, mountable, safe_strdup (g, "btrfs"), ret, ret_size);
}
v = vfs_type;
}
/* Use vfs-type to look for a filesystem of some sort on 'dev'.
* Apart from some types which we ignore, add the result to the
* 'ret' string list.
*/
static int
check_with_vfs_type (guestfs_h *g, const char *device, struct stringsbuf *sb)
{
const char *v;
CLEANUP_FREE char *vfs_type = NULL;
guestfs_push_error_handler (g, NULL, NULL);
vfs_type = guestfs_vfs_type (g, device);
guestfs_pop_error_handler (g);
if (!vfs_type)
v = "unknown";
else if (STREQ (vfs_type, ""))
v = "unknown";
else if (STREQ (vfs_type, "btrfs")) {
CLEANUP_FREE_BTRFSSUBVOLUME_LIST struct guestfs_btrfssubvolume_list *vols =
guestfs_btrfs_subvolume_list (g, device);
if (vols == NULL)
return -1;
for (size_t i = 0; i < vols->len; i++) {
struct guestfs_btrfssubvolume *this = &vols->val[i];
guestfs_int_add_sprintf (g, sb,
"btrfsvol:%s/%s",
device, this->btrfssubvolume_path);
guestfs_int_add_string (g, sb, "btrfs");
}
v = vfs_type;
}
/* Use vfs-type to look for a filesystem of some sort on 'dev'.
* Apart from some types which we ignore, add the result to the
* 'ret' string list.
*/
static int
check_with_vfs_type (guestfs_h *g, const char *device, struct stringsbuf *sb)
{
const char *v;
CLEANUP_FREE char *vfs_type = NULL;
guestfs_push_error_handler (g, NULL, NULL);
vfs_type = guestfs_vfs_type (g, device);
guestfs_pop_error_handler (g);
if (!vfs_type)
v = "unknown";
else if (STREQ (vfs_type, ""))
v = "unknown";
else if (STREQ (vfs_type, "btrfs")) {
CLEANUP_FREE_BTRFSSUBVOLUME_LIST struct guestfs_btrfssubvolume_list *vols =
guestfs_btrfs_subvolume_list (g, device);
if (vols == NULL)
return -1;
int64_t default_volume = guestfs_btrfs_subvolume_get_default (g, device);
for (size_t i = 0; i < vols->len; i++) {
struct guestfs_btrfssubvolume *this = &vols->val[i];
/* Ignore the default subvolume. We get it by simply mounting
* the whole device of this btrfs filesystem.
*/
if (this->btrfssubvolume_id == (uint64_t) default_volume)
continue;
guestfs_int_add_sprintf (g, sb,
"btrfsvol:%s/%s",
device, this->btrfssubvolume_path);
guestfs_int_add_string (g, sb, "btrfs");
}
v = vfs_type;
}
