Properly handle dbus send attempts on a closed connection

dbus_connection_send_with_reply() will report success and return
a NULL pending_reply when the connection is not open for
communication. This patch creates a new wrapper around
dbus_connection_send_with_reply() to properly detect this
condition and report it as an error.

1 files changed, 16 insertions, 0 deletions

diff --git a/src/sbus/sssd_dbus.h b/src/sbus/sssd_dbus.h
index ac02c4440..2dbf4ab77 100644
--- a/src/sbus/sssd_dbus.h
+++ b/src/sbus/sssd_dbus.h
@@ -144,6 +144,22 @@ DBusHandlerResult sbus_message_handler(DBusConnection *conn,
                                   DBusMessage *message,
                                   void *user_data);
 
+/*
+ * Send a message across the SBUS
+ * If requested, the DBusPendingCall object will
+ * be returned to the caller.
+ *
+ * This function will return EAGAIN in the event
+ * that the connection is not open for
+ * communication.
+ */
+int sbus_conn_send(struct sbus_connection *conn,
+                   DBusMessage *msg,
+                   int timeout_ms,
+                   DBusPendingCallNotifyFunction reply_handler,
+                   void *pvt,
+                   DBusPendingCall **pending);
+
 void sbus_conn_send_reply(struct sbus_connection *conn,
                           DBusMessage *reply);