Merge branch 'bugfix/btdm_fix_strncpy_error_in_blufi' into 'master'

Component/bt: fix strncpy error in blufi

See merge request idf/esp-idf!2141

examples/bluetooth/blufi/main/blufi_example_main.c

@@ -231,6 +231,10 @@ static void example_event_callback(esp_blufi_cb_event_t event, esp_blufi_cb_para
         break;
     case ESP_BLUFI_EVENT_REQ_CONNECT_TO_AP:
         BLUFI_INFO("BLUFI requset wifi connect to AP\n");
+        /* there is no wifi callback when the device has already connected to this wifi
+        so disconnect wifi before connection.
+        */
+        esp_wifi_disconnect();
         esp_wifi_connect();
         break;
     case ESP_BLUFI_EVENT_REQ_DISCONNECT_FROM_AP:
@@ -288,14 +292,16 @@ static void example_event_callback(esp_blufi_cb_event_t event, esp_blufi_cb_para
         break;
 	case ESP_BLUFI_EVENT_RECV_SOFTAP_SSID:
         strncpy((char *)ap_config.ap.ssid, (char *)param->softap_ssid.ssid, param->softap_ssid.ssid_len);
+        ap_config.ap.ssid[param->softap_ssid.ssid_len] = '\0';
         ap_config.ap.ssid_len = param->softap_ssid.ssid_len;
         esp_wifi_set_config(WIFI_IF_AP, &ap_config);
         BLUFI_INFO("Recv SOFTAP SSID %s, ssid len %d\n", ap_config.ap.ssid, ap_config.ap.ssid_len);
         break;
 	case ESP_BLUFI_EVENT_RECV_SOFTAP_PASSWD:
         strncpy((char *)ap_config.ap.password, (char *)param->softap_passwd.passwd, param->softap_passwd.passwd_len);
+        ap_config.ap.password[param->softap_passwd.passwd_len] = '\0';
         esp_wifi_set_config(WIFI_IF_AP, &ap_config);
-        BLUFI_INFO("Recv SOFTAP PASSWORD %s\n", ap_config.ap.password);
+        BLUFI_INFO("Recv SOFTAP PASSWORD %s len = %d\n", ap_config.ap.password, param->softap_passwd.passwd_len);
         break;
 	case ESP_BLUFI_EVENT_RECV_SOFTAP_MAX_CONN_NUM:
         if (param->softap_max_conn_num.max_conn_num > 4) {