Interworking: Report STATUS:sp_type even if domain is not configured

This allows sp_type={home,roaming,unknown} to be used to determine
network type with SIM-based credentials even if the domain name
parameter is not configured explicitly.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>

wpa_supplicant/ctrl_iface.c

@@ -1569,10 +1569,8 @@ static int wpa_supplicant_ctrl_iface_status(struct wpa_supplicant *wpa_s,
 
 			if (wpa_s->current_ssid->parent_cred != cred)
 				continue;
-			if (!cred->domain)
-				continue;
 
-			for (i = 0; i < cred->num_domain; i++) {
+			for (i = 0; cred->domain && i < cred->num_domain; i++) {
 				ret = os_snprintf(pos, end - pos,
 						  "home_sp=%s\n",
 						  cred->domain[i]);

wpa_supplicant/interworking.c

@@ -1550,6 +1550,7 @@ int interworking_home_sp_cred(struct wpa_supplicant *wpa_s,
 			      struct wpabuf *domain_names)
 {
 	size_t i;
+	int ret = -1;
 #ifdef INTERWORKING_3GPP
 	char nai[100], *realm;
 
@@ -1580,11 +1581,13 @@ int interworking_home_sp_cred(struct wpa_supplicant *wpa_s,
 		if (realm &&
 		    domain_name_list_contains(domain_names, realm))
 			return 1;
+		if (realm)
+			ret = 0;
 	}
 #endif /* INTERWORKING_3GPP */
 
 	if (domain_names == NULL || cred->domain == NULL)
-		return 0;
+		return ret;
 
 	for (i = 0; i < cred->num_domain; i++) {
 		wpa_printf(MSG_DEBUG, "Interworking: Search for match with "