nuttx-apps/system/dhcpc/renew_main.c
Alin Jerpelea aa581fe5ce system: nxstyle fixes
fixes for errors reported by the nxstyle tool

Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
2021-06-11 02:42:05 -05:00

120 lines
3.4 KiB
C

/****************************************************************************
* apps/system/dhcpc/renew_main.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdlib.h>
#include <stdio.h>
#include <net/if.h>
#include "netutils/netlib.h"
#include "netutils/dhcpc.h"
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* dhcpc_showusage
****************************************************************************/
static void dhcpc_showusage(FAR const char *progname, int exitcode)
{
fprintf(stderr, "Usage: %s <device-name>\n", progname);
exit(exitcode);
}
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* renew_main
****************************************************************************/
int main(int argc, FAR char *argv[])
{
FAR const char *devname;
FAR void *handle;
uint8_t mac[IFHWADDRLEN];
struct dhcpc_state ds;
int ret;
/* One and only one argument is expected: The network device name. */
if (argc != 2)
{
fprintf(stderr, "ERROR: Invalid number of arguments\n");
dhcpc_showusage(argv[0], EXIT_FAILURE);
}
devname = argv[1];
/* Get the MAC address of the NIC */
netlib_getmacaddr(devname, mac);
/* Set up the DHCPC modules */
handle = dhcpc_open(devname, &mac, IFHWADDRLEN);
if (handle == NULL)
{
fprintf(stderr, "ERROR: dhcpc_open() for '%s' failed\n", devname);
return EXIT_FAILURE;
}
/* Get an IP address. */
ret = dhcpc_request(handle, &ds);
if (ret < 0)
{
dhcpc_close(handle);
fprintf(stderr, "ERROR: dhcpc_request() failed\n");
return EXIT_FAILURE;
}
/* Save the addresses that we obtained. */
netlib_set_ipv4addr(devname, &ds.ipaddr);
if (ds.netmask.s_addr != 0)
{
netlib_set_ipv4netmask(devname, &ds.netmask);
}
if (ds.default_router.s_addr != 0)
{
netlib_set_dripv4addr(devname, &ds.default_router);
}
if (ds.dnsaddr.s_addr != 0)
{
netlib_set_ipv4dnsaddr(&ds.dnsaddr);
}
dhcpc_close(handle);
return EXIT_SUCCESS;
}