[gtk-vnc] sasl: Factor common code auth failure

[Daniel P. Berrange <dberrange src gnome org>]

commit 83cac0cbe8b8006c50d177650459aaa47f1fd129
Author: Christophe Fergeau <cfergeau redhat com>
Date:   Wed Jan 9 14:01:22 2019 +0100

    sasl: Factor common code auth failure
    
    The new vnc_connection_auth_failure() method will be reused in the
    next commit.
    
    Signed-off-by: Christophe Fergeau <cfergeau redhat com>

 src/vncconnection.c | 17 +++++++++++------
 1 file changed, 11 insertions(+), 6 deletions(-)
---
diff --git a/src/vncconnection.c b/src/vncconnection.c
index f9c510a..08dd7ab 100644
--- a/src/vncconnection.c
+++ b/src/vncconnection.c
@@ -124,6 +124,7 @@ static void vnc_connection_close(VncConnection *conn);
 static void vnc_connection_set_error(VncConnection *conn,
                                      const char *format,
                                      ...) G_GNUC_PRINTF(2, 3);
+static void vnc_connection_auth_failure(VncConnection *conn, const char *reason);
 
 /*
  * A special GSource impl which allows us to wait on a certain
@@ -660,6 +661,14 @@ static G_GNUC_PRINTF(2, 3) void vnc_connection_set_error(VncConnection *conn,
     vnc_connection_emit_main_context(conn, VNC_ERROR, &s);
 }
 
+static void vnc_connection_auth_failure(VncConnection *conn,
+                                        const char *reason)
+{
+    struct signal_data sigdata;
+
+    sigdata.params.authReason = reason;
+    vnc_connection_emit_main_context(conn, VNC_AUTH_FAILURE, &sigdata);
+}
 
 static gboolean vnc_connection_use_compression(VncConnection *conn)
 {
@@ -3571,18 +3580,14 @@ static gboolean vnc_connection_check_auth_result(VncConnection *conn)
         reason[len] = '\0';
         VNC_DEBUG("Fail %s", reason);
         if (!priv->coroutine_stop) {
-            struct signal_data sigdata;
-            sigdata.params.authReason = reason;
             vnc_connection_set_error(conn, "%s", reason);
-            vnc_connection_emit_main_context(conn, VNC_AUTH_FAILURE, &sigdata);
+            vnc_connection_auth_failure(conn, reason);
         }
     } else {
         VNC_DEBUG("Fail auth no result");
         if (!priv->coroutine_stop) {
-            struct signal_data sigdata;
-            sigdata.params.authReason = "Unknown authentication failure";
             vnc_connection_set_error(conn, "%s", "Unknown authentication failure");
-            vnc_connection_emit_main_context(conn, VNC_AUTH_FAILURE, &sigdata);
+            vnc_connection_auth_failure(conn, "Unknown authentication failure");
         }
     }
     return FALSE;