[lwip-users] DHCP state change callback

[Jonathan D]

Hi all,

I'm using LwIP 2.1.3 and I haven't find a way to have a function called when the DHCP state change (to report it on the app side).

I have tried with callback related to LWIP_NETIF_STATUS_CALLBACK or LWIP_NETIF_EXT_STATUS_CALLBACK without success.

Is there a better way than polling like this ?

```

  dhcp = netif_dhcp_data(netif);

  if (dhcp != NULL && dhcp->state == DHCP_STATE_BOUND)

  {

      if (!isDhcpReportedAsBound())

      {

            SetDhcpBounded(TRUE);

      }

  }

  else if (isDhcpReportedAsBound())

  {

      SetDhcpBounded(FALSE);

  }

```

Thank you