[glib-networking] gnutls: Add another G_TLS_ERROR_NOT_TLS case

[Dan Winship <danw src gnome org>]

commit e7580c1d15c12bb8bae81d5cadaa9e0c3713ab60
Author: Dan Winship <danw gnome org>
Date:   Tue Oct 18 13:51:59 2011 -0400

    gnutls: Add another G_TLS_ERROR_NOT_TLS case
    
    If we get a GNUTLS_E_DECRYPTION_FAILED during the handshake, assume
    the peer is just dumb, and return G_TLS_ERROR_NOT_TLS so, eg, libsoup
    can fall back to SSLv3.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=662104

 tls/gnutls/gtlsconnection-gnutls.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/tls/gnutls/gtlsconnection-gnutls.c b/tls/gnutls/gtlsconnection-gnutls.c
index 90afe07..c27aee7 100644
--- a/tls/gnutls/gtlsconnection-gnutls.c
+++ b/tls/gnutls/gtlsconnection-gnutls.c
@@ -520,6 +520,7 @@ end_gnutls_io (GTlsConnectionGnutls  *gnutls,
       if (g_error_matches (gnutls->priv->error, G_IO_ERROR, G_IO_ERROR_FAILED) ||
 	  status == GNUTLS_E_UNEXPECTED_PACKET_LENGTH ||
 	  status == GNUTLS_E_FATAL_ALERT_RECEIVED ||
+	  status == GNUTLS_E_DECRYPTION_FAILED ||
 	  status == GNUTLS_E_UNSUPPORTED_VERSION_PACKET)
 	{
 	  g_clear_error (&gnutls->priv->error);