In networks that don't have a DHCP server configured, ipv4 address
allocation fails and the ipv4 structure doesn't get populated. When
the GUI is trying to read the ipv4_config.method field to see whether
it contains "dhcp" string, a segmentation fault is generated.

Ethernet manual configuration behavior remains unchanged after this fix.

Upstream-Status: Pending

Signed-off-by: Emilia Ciobanu <emilia.maria.silvia.ciobanu@intel.com>
Index: git/properties/ethernet.c
===================================================================
--- git.orig/properties/ethernet.c
+++ git/properties/ethernet.c
@@ -194,7 +194,7 @@ void add_ethernet_service(GtkWidget *mai

 	data->button = button;

-	if (g_str_equal(ipv4_config.method, "dhcp") == TRUE)
+	if (!ipv4_config.method || g_str_equal(ipv4_config.method, "dhcp") == TRUE)
 		update_ethernet_ipv4(data, CONNMAN_POLICY_DHCP);
 	else
 		update_ethernet_ipv4(data, CONNMAN_POLICY_MANUAL);
Index: git/properties/wifi.c
===================================================================
--- git.orig/properties/wifi.c
+++ git/properties/wifi.c
@@ -230,7 +230,7 @@ static void wifi_ipconfig(GtkWidget *tab

 	data->ipv4_config = ipv4_config;

-	if (g_str_equal(ipv4_config.method, "dhcp") == TRUE)
+	if (!ipv4_config.method || g_str_equal(ipv4_config.method, "dhcp") == TRUE)
 		update_wifi_ipv4(data, CONNMAN_POLICY_DHCP);
 	else
 		update_wifi_ipv4(data, CONNMAN_POLICY_MANUAL);