pyrpc: Fix segfault in ClientConnection

Fix segfault when connecting over TCP, the endpoints list in dummy_table
was not initialised this caused a segfault when attempting to connect
over TCP.

Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlet <abartlet@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>

Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org>
Autobuild-Date(master): Fri Apr 21 16:10:12 CEST 2017 on sn-devel-144

1 files changed, 8 insertions, 0 deletions

diff --git a/source4/librpc/rpc/pyrpc.c b/source4/librpc/rpc/pyrpc.c
index d4f13ba89f6..8b817b8b46d 100644
--- a/source4/librpc/rpc/pyrpc.c
+++ b/source4/librpc/rpc/pyrpc.c
@@ -293,6 +293,7 @@ static PyObject *dcerpc_interface_new(PyTypeObject *type, PyObject *args, PyObje
 		"binding", "syntax", "lp_ctx", "credentials", "basis_connection", NULL
 	};
 	static struct ndr_interface_table dummy_table;
+	static struct ndr_interface_string_array dummy_endpoints;
 	PyObject *args2 = Py_None;
 	PyObject *kwargs2 = Py_None;
 
@@ -316,6 +317,13 @@ static PyObject *dcerpc_interface_new(PyTypeObject *type, PyObject *args, PyObje
 		return NULL;
 	}
 
+	/*
+	 * Initialise the endpoints list in dummy_table if required
+	 */
+	if (dummy_table.endpoints == NULL) {
+		dummy_table.endpoints = &dummy_endpoints;
+	}
+
 	args2 = Py_BuildValue("(s)", binding_string);
 	if (args2 == NULL) {
 		return NULL;