[glib-networking] gnutls: Appropriate error when server requires cert but none

[Stefan Walter <stefw src gnome org>]

commit 81a9ae337ed60fc4ef9abbf6f306d55554c5d7f8
Author: Stef Walter <stefw gnome org>
Date:   Thu Nov 29 11:00:00 2012 +0100

    gnutls: Appropriate error when server requires cert but none
    
    When the server requires a certificate for auth, but none is
    provider, return the appropriate G_TLS_ERROR_CERTIFICATE_REQUIRED
    error.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=689260

 tls/gnutls/gtlsconnection-gnutls.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)
---
diff --git a/tls/gnutls/gtlsconnection-gnutls.c b/tls/gnutls/gtlsconnection-gnutls.c
index f3602f2..2603532 100644
--- a/tls/gnutls/gtlsconnection-gnutls.c
+++ b/tls/gnutls/gtlsconnection-gnutls.c
@@ -750,6 +750,12 @@ end_gnutls_io (GTlsConnectionGnutls  *gnutls,
       else
 	return 0;
     }
+  else if (status == GNUTLS_E_NO_CERTIFICATE_FOUND)
+    {
+      g_set_error_literal (error, G_TLS_ERROR, G_TLS_ERROR_CERTIFICATE_REQUIRED,
+                           _("TLS connection peer did not send a certificate"));
+      return status;
+    }
 
   if (error)
     {