dhcp: warn on invalid netmask

diff --git a/src/dhcp.c b/src/dhcp.c
index f4de736..3425b6d 100644 (file)
--- a/src/dhcp.c
+++ b/src/dhcp.c
@@ -227,6 +227,8 @@ static void lease_available_cb(GDHCPClient *dhcp_client, gpointer user_data)
                gateway = g_strdup(option->data);
 
        prefixlen = __connman_ipconfig_netmask_prefix_len(netmask);
+       if (prefixlen == 255)
+               connman_warn("netmask: %s is invalid", netmask);
 
        DBG("c_address %s", c_address);