struct DHCP_MESSAGE * create_solicit_message (char *interface_name)
{
    struct DHCP_MESSAGE * dhcp_message_ptr = malloc (sizeof (struct DHCP_MESSAGE));
    struct OPTIONS *opt_ptr;
    struct interface *interface_details;

    interface_details = get_interface_details (interface_name);
#if DEBUG == 3
    print_interface_details (interface_details);
#endif
    dhcp_message_ptr -> u_msg_type.msg_type = SOLICIT;
    generate_trans_id (&dhcp_message_ptr -> u_trans_id.trans_id);
    dhcp_message_ptr -> opt = add_client_id_option (interface_details);

    opt_ptr = (struct OPTIONS *) dhcp_message_ptr -> opt;
    (struct OPTIONS *) ((struct DUID *) opt_ptr -> opt_data) -> opt = add_ia_option (interface_details);
    return dhcp_message_ptr;
}