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[libguestfs.git] / daemon / blkid.c

diff --git a/daemon/blkid.c b/daemon/blkid.c
index 1ddc8cd..108eee6 100644 (file)
--- a/daemon/blkid.c
+++ b/daemon/blkid.c
@@ -33,6 +33,13 @@ get_blkid_tag (const char *device, const char *tag)
   char *out, *err;
   int r;
 
+  /* Kill the cache file, forcing blkid to reread values from the
+   * original filesystems.  In blkid there is a '-p' option which is
+   * supposed to do this, but (a) it doesn't work and (b) that option
+   * is not supported in RHEL 5.
+   */
+  unlink ("/etc/blkid/blkid.tab");
+
   r = command (&out, &err,
                "blkid", "-o", "value", "-s", tag, device, NULL);
   if (r == -1) {
@@ -57,3 +64,15 @@ do_vfs_type (const char *device)
 {
   return get_blkid_tag (device, "TYPE");
 }
+
+char *
+do_vfs_label (const char *device)
+{
+  return get_blkid_tag (device, "LABEL");
+}
+
+char *
+do_vfs_uuid (const char *device)
+{
+  return get_blkid_tag (device, "UUID");
+}