nuttx-apps/netutils/netlib/netlib_setarp.c
Alin Jerpelea 5572819bb1 netutils: nxstyle fixes
fixes for errors reported by nxstyle tool

Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
2021-06-11 08:53:57 -05:00

94 lines
2.8 KiB
C

/****************************************************************************
* apps/netutils/netlib/netlib_setarp.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>
#ifdef CONFIG_NET_ARP
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <unistd.h>
#include <string.h>
#include <assert.h>
#include <errno.h>
#include <netinet/in.h>
#include <net/if.h>
#include <nuttx/net/arp.h>
#include "netutils/netlib.h"
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: netlib_set_arpmapping
*
* Description:
* Add the current hardware address mapping for the provided protocol
* address to the ARP table.
*
* Parameters:
* inaddr The IPv4 address to use in the mapping
* macaddr The Ethernet MAC address to use in the mapping
*
* Return:
* 0 on success; a negated errno value on failure.
*
****************************************************************************/
int netlib_set_arpmapping(FAR const struct sockaddr_in *inaddr,
FAR const uint8_t *macaddr)
{
int ret = -EINVAL;
if (inaddr != NULL && macaddr != NULL)
{
int sockfd = socket(PF_INET, NETLIB_SOCK_TYPE, 0);
if (sockfd >= 0)
{
struct arpreq req;
memcpy(&req.arp_pa, inaddr, sizeof(struct sockaddr_in));
req.arp_ha.sa_family = ARPHRD_ETHER;
memcpy(&req.arp_ha.sa_data, macaddr, ETHER_ADDR_LEN);
ret = ioctl(sockfd, SIOCSARP, (unsigned long)((uintptr_t)&req));
if (ret < 0)
{
ret = -errno;
DEBUGASSERT(ret < 0);
}
close(sockfd);
}
}
return ret;
}
#endif /* CONFIG_NET_ARP */