[Libguestfs] [PATCH] parted: Don't return "loop" for non-partitioned devices (RHBZ#634246).

[Richard W.M. Jones]

-- 
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>From b3d27793f04ae44b2c11f6422a19b4422ac941cd Mon Sep 17 00:00:00 2001
From: Richard W.M. Jones <rjones at redhat.com>
Date: Mon, 18 Oct 2010 12:56:54 +0100
Subject: [PATCH] parted: Don't return "loop" for non-partitioned devices (RHBZ#634246).

If you ran part-get-parttype command on a device which didn't
contain a partition, it used to return the string "loop".  This
is an internal representation that parted uses.  We should instead
return an error because part-get-parttype makes no sense for
devices which are not partitioned.
---
 daemon/parted.c |   15 +++++++++++++++
 1 files changed, 15 insertions(+), 0 deletions(-)

diff --git a/daemon/parted.c b/daemon/parted.c
index 89cc0d6..068384e 100644
--- a/daemon/parted.c
+++ b/daemon/parted.c
@@ -378,6 +378,14 @@ do_part_get_parttype (const char *device)
     }
 
     free_strings (lines);
+
+    /* If "loop" return an error (RHBZ#634246). */
+    if (STREQ (r, "loop")) {
+      free (r);
+      reply_with_error ("not a partitioned device");
+      return NULL;
+    }
+
     return r;
   }
   else {
@@ -406,6 +414,13 @@ do_part_get_parttype (const char *device)
       return NULL;
     }
 
+    /* If "loop" return an error (RHBZ#634246). */
+    if (STREQ (p, "loop")) {
+      free (p);
+      reply_with_error ("not a partitioned device");
+      return NULL;
+    }
+
     return p;                   /* caller frees */
   }
 }
-- 
1.7.3.1