[network-manager-openvpn] helper: improve routes handling

[Beniamino Galvani <bgalvani src gnome org>]

commit 55fe2229c882670164f12e10edf810f2297dbcbd
Author: Beniamino Galvani <bgalvani redhat com>
Date:   Mon Oct 26 10:04:20 2015 +0100

    helper: improve routes handling
    
    Return NULL instead of an empty array when there are invalid routes.

 src/nm-openvpn-service-openvpn-helper.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)
---
diff --git a/src/nm-openvpn-service-openvpn-helper.c b/src/nm-openvpn-service-openvpn-helper.c
index 28456da..512d6ce 100644
--- a/src/nm-openvpn-service-openvpn-helper.c
+++ b/src/nm-openvpn-service-openvpn-helper.c
@@ -198,7 +198,7 @@ get_ip4_routes (void)
        GVariantBuilder builder;
        GVariant *value;
        char *tmp;
-       int i;
+       int i, size = 0;
 
        g_variant_builder_init (&builder, G_VARIANT_TYPE ("aau"));
 
@@ -257,10 +257,11 @@ get_ip4_routes (void)
                g_variant_builder_add_value (&array, g_variant_new_uint32 (gateway.s_addr));
                g_variant_builder_add_value (&array, g_variant_new_uint32 (metric));
                g_variant_builder_add_value (&builder, g_variant_builder_end (&array));
+               size++;
        }
 
        value = g_variant_builder_end (&builder);
-       if (i > 1)
+       if (size > 0)
                return value;
 
        g_variant_unref (value);