nuttx-apps/include/netutils/dhcpc.h

/****************************************************************************
 * apps/include/netutils/dhcpc.h
 *
 *   Copyright (C) 2007, 2009-2011, 2015 Gregory Nutt. All rights reserved.
 *   Author: Gregory Nutt <gnutt@nuttx.org>
 *
 * This logic was leveraged from uIP which also has a BSD-style license:
 *
 *   Copyright (c) 2005, Swedish Institute of Computer Science
 *   All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the Institute nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#ifndef __APPS_INCLUDE_NETUTILS_DHCPC_H
#define __APPS_INCLUDE_NETUTILS_DHCPC_H

/****************************************************************************
 * Included Files
 ****************************************************************************/

#include <stdint.h>
#include <netinet/in.h>

/****************************************************************************
 * Pre-processor Definitions
 ****************************************************************************/

/****************************************************************************
 * Public Types
 ****************************************************************************/

struct dhcpc_state
{
  struct in_addr serverid;
  struct in_addr ipaddr;
  struct in_addr netmask;
  struct in_addr dnsaddr;
  struct in_addr default_router;
  uint32_t       lease_time;      /* Lease expires in this number of seconds */
};

/****************************************************************************
 * Public Function Prototypes
 ****************************************************************************/

#ifdef __cplusplus
#define EXTERN extern "C"
extern "C"
{
#else
#define EXTERN extern
#endif

FAR void *dhcpc_open(FAR const char *interface,
                     FAR const void *mac_addr, int mac_len);
int  dhcpc_request(FAR void *handle, FAR struct dhcpc_state *presult);
void dhcpc_close(FAR void *handle);

#undef EXTERN
#ifdef __cplusplus
}
#endif

#endif /* __APPS_INCLUDE_NETUTILS_DHCPC_H */