Generate a dummy 'Fedora' fedora.img in images directory for use by tests.

[libguestfs.git] / daemon / blkid.c

diff --git a/daemon/blkid.c b/daemon/blkid.c
index 4e14881..108eee6 100644 (file)
--- a/daemon/blkid.c
+++ b/daemon/blkid.c
@@ -27,16 +27,23 @@
 #include "daemon.h"
 #include "actions.h"
 
-char *
-do_vfs_type (const char *device)
+static char *
+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,
-               "/sbin/blkid", "-o", "value", "-s", "TYPE", device, NULL);
+               "blkid", "-o", "value", "-s", tag, device, NULL);
   if (r == -1) {
-    reply_with_error ("vfs_type: %s: %s", device, err);
+    reply_with_error ("%s: %s", device, err);
     free (out);
     free (err);
     return NULL;
@@ -51,3 +58,21 @@ do_vfs_type (const char *device)
 
   return out;                   /* caller frees */
 }
+
+char *
+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");
+}