[Patch] fix for bug 11613, samba-tool fsmo throws an error

[Rowland Penny]

Hi, the attached patch fixes bug 11613. A user on the samba mailing list 
got an uncaught exception when trying to seize an FSMO role which did 
not have a 'fSMORoleOwner' attribute. This patch will print an error 
message if no attribute found and then exit.

Rowland

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From 77b383be3d4dfb983ebb8ca13436788ca20c8e9a Mon Sep 17 00:00:00 2001
From: Rowland Penny <repenny241155 at gmail.com>
Date: Mon, 23 Nov 2015 18:40:19 +0000
Subject: [PATCH 3/3] samba-tool: fsmo.py throws an uncaught exception if no 
fSMORoleOwner attribute

This will fix bug 11613 where a user got the uncaught exception when trying
to seize an FSMO role that didn't have the required attribute.

Signed-off-by: Rowland Penny <repenny241155 at gmail.com>
---
 python/samba/netcmd/fsmo.py |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/python/samba/netcmd/fsmo.py b/python/samba/netcmd/fsmo.py
index 0b4488f..a5c2818 100644
--- a/python/samba/netcmd/fsmo.py
+++ b/python/samba/netcmd/fsmo.py
@@ -38,7 +38,8 @@ def get_fsmo_roleowner(samdb, roledn):
     """
     res = samdb.search(roledn,
                        scope=ldb.SCOPE_BASE, attrs=["fSMORoleOwner"])
-    assert len(res) == 1
+    if len(res) == 0:
+        raise Exception('"%s" does not have a FSMO roleowner' % roledn)
     master_owner = res[0]["fSMORoleOwner"][0]
     return master_owner
 
-- 
1.7.10.4