X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=extras%2Fvolume_id%2Flib%2Fvolume_id.c;h=48bfd88624d323b7922370d9b68950bee41f54b5;hp=8bbbc38c3200c975de29290d24c019e4c0b86b59;hb=14e18278;hpb=07d9b845c665f9f0288585aed7c913b7f323df99

diff --git a/extras/volume_id/lib/volume_id.c b/extras/volume_id/lib/volume_id.c
index 8bbbc38c3..48bfd8862 100644
--- a/extras/volume_id/lib/volume_id.c
+++ b/extras/volume_id/lib/volume_id.c
@@ -219,6 +219,19 @@ int volume_id_get_uuid_raw(struct volume_id *id, const uint8_t **uuid, size_t *l
 	return 1;
 }
 
+int volume_id_get_uuid_sub(struct volume_id *id, const char **uuid)
+{
+	if (id == NULL)
+		return 0;
+	if (uuid == NULL)
+		return 0;
+	if (id->usage_id == VOLUME_ID_UNUSED)
+		return 0;
+
+	*uuid = id->uuid_sub;
+	return 1;
+}
+
 /**
  * volume_id_get_usage:
  * @id: Probing context.