/* Returns !0 on error.
* Otherwise, returns malloc'ed strings for label and uuid
* (and they can't be NULL, although they can be "").
* NB: closes fd. */
static int
get_label_uuid(int fd, char **label, char **uuid, const char **type)
{
int rv = 1;
uint64_t size;
struct volume_id *vid;
/* fd is owned by vid now */
vid = volume_id_open_node(fd);
if (ioctl(/*vid->*/fd, BLKGETSIZE64, &size) != 0)
size = 0;
if (volume_id_probe_all(vid, /*0,*/ size) != 0)
goto ret;
if (vid->label[0] != '\0' || vid->uuid[0] != '\0') {
*label = xstrndup(vid->label, sizeof(vid->label));
*uuid = xstrndup(vid->uuid, sizeof(vid->uuid));
#if ENABLE_FEATURE_BLKID_TYPE
*type = vid->type;
dbg("found label '%s', uuid '%s', type '%s'", *label, *uuid, *type);
#else
dbg("found label '%s', uuid '%s'", *label, *uuid);
#endif
rv = 0;
}
ret:
free_volume_id(vid); /* also closes fd */
return rv;
}
/* Returns !0 on error.
* Otherwise, returns malloc'ed strings for label and uuid
* (and they can't be NULL, although they can be "").
* NB: closes fd. */
static int
get_label_uuid(int fd, char **label, char **uuid)
{
int rv = 1;
uint64_t size;
struct volume_id *vid;
/* fd is owned by vid now */
vid = volume_id_open_node(fd);
if (ioctl(/*vid->*/fd, BLKGETSIZE64, &size) != 0)
size = 0;
if (volume_id_probe_all(vid, 0, size) != 0)
goto ret;
if (vid->label[0] != '\0' || vid->uuid[0] != '\0') {
*label = xstrndup(vid->label, sizeof(vid->label));
*uuid = xstrndup(vid->uuid, sizeof(vid->uuid));
dbg("found label '%s', uuid '%s' on %s", *label, *uuid, device);
rv = 0;
}
ret:
free_volume_id(vid); /* also closes fd */
return rv;
}
static int
get_label_uuid(const char *device, char **label, char **uuid, int iso_only)
{
int rv = 1;
uint64_t size;
struct volume_id *vid;
vid = volume_id_open_node(device);
if (!vid)
return rv;
if (ioctl(vid->fd, BLKGETSIZE64, &size) != 0)
size = 0;
#if ENABLE_FEATURE_VOLUMEID_ISO9660
if ((iso_only ?
volume_id_probe_iso9660(vid, 0) :
volume_id_probe_all(vid, 0, size)
) != 0
) {
goto ret;
}
#else
if (volume_id_probe_all(vid, 0, size) != 0) {
goto ret;
}
#endif
if (vid->label[0] != '\0' || vid->uuid[0] != '\0') {
*label = xstrndup(vid->label, sizeof(vid->label));
*uuid = xstrndup(vid->uuid, sizeof(vid->uuid));
dbg("found label '%s', uuid '%s' on %s", *label, *uuid, device);
rv = 0;
}
ret:
free_volume_id(vid);
return rv;
}