[network-manager-vpnc] properties: don't overwrite a GError and use real GError domains

[Dan Williams <dcbw src gnome org>]

commit 6435eeca2fee87ff5241865526f6c5fe393cd1e7
Author: Dan Williams <dcbw redhat com>
Date:   Thu Apr 10 12:34:35 2014 -0500

    properties: don't overwrite a GError and use real GError domains
    
    Fixes warnings when importing connections.

 properties/nm-vpnc.c |   33 +++++++++++++++++++++++++++------
 1 files changed, 27 insertions(+), 6 deletions(-)
---
diff --git a/properties/nm-vpnc.c b/properties/nm-vpnc.c
index 8c982dd..909c61b 100644
--- a/properties/nm-vpnc.c
+++ b/properties/nm-vpnc.c
@@ -1296,6 +1296,24 @@ decrypt_cisco_key (const char* enc_key)
        return key;
 }
 
+typedef enum {
+       NM_VPNC_IMPORT_ERROR_UNKNOWN = 0,
+       NM_VPNC_IMPORT_ERROR_NOT_VPNC,
+       NM_VPNC_IMPORT_ERROR_BAD_DATA,
+} NMVpncImportError;
+
+#define NM_VPNC_IMPORT_ERROR nm_vpnc_import_error_quark ()
+
+static GQuark
+nm_vpnc_import_error_quark (void)
+{
+       static GQuark quark = 0;
+
+       if (G_UNLIKELY (quark == 0))
+               quark = g_quark_from_static_string ("nm-vpnc-import-error-quark");
+       return quark;
+}
+
 static NMConnection *
 import (NMVpnPluginUiInterface *iface, const char *path, GError **error)
 {
@@ -1311,11 +1329,8 @@ import (NMVpnPluginUiInterface *iface, const char *path, GError **error)
        gboolean found;
 
        keyfile = g_key_file_new ();
-       if (!g_key_file_load_from_file (keyfile, path, 0, error)) {
-               g_set_error (error, 0, 0, "does not look like a %s VPN connection (parse failed)",
-                            VPNC_PLUGIN_NAME);
+       if (!g_key_file_load_from_file (keyfile, path, 0, error))
                goto error;
-       }
 
        connection = nm_connection_new ();
        s_con = NM_SETTING_CONNECTION (nm_setting_connection_new ());
@@ -1334,7 +1349,10 @@ import (NMVpnPluginUiInterface *iface, const char *path, GError **error)
                nm_setting_vpn_add_data_item (s_vpn, NM_VPNC_KEY_GATEWAY, buf);
                g_free (buf);
        } else {
-               g_set_error (error, 0, 0, "does not look like a %s VPN connection (no Host)",
+               g_set_error (error,
+                            NM_VPNC_IMPORT_ERROR,
+                            NM_VPNC_IMPORT_ERROR_NOT_VPNC,
+                            "does not look like a %s VPN connection (no Host)",
                             VPNC_PLUGIN_NAME);
                goto error;
        }
@@ -1345,7 +1363,10 @@ import (NMVpnPluginUiInterface *iface, const char *path, GError **error)
                nm_setting_vpn_add_data_item (s_vpn, NM_VPNC_KEY_ID, buf);
                g_free (buf);
        } else {
-               g_set_error (error, 0, 0, "does not look like a %s VPN connection (no GroupName)",
+               g_set_error (error,
+                            NM_VPNC_IMPORT_ERROR,
+                            NM_VPNC_IMPORT_ERROR_BAD_DATA,
+                            "does not look like a %s VPN connection (no GroupName)",
                             VPNC_PLUGIN_NAME);
                goto error;
        }