94 lines
2.8 KiB
C
94 lines
2.8 KiB
C
/****************************************************************************
|
|
* apps/netutils/netlib/netlib_getifstatus.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 <sys/socket.h>
|
|
#include <sys/ioctl.h>
|
|
#include <stdint.h>
|
|
#include <stdbool.h>
|
|
#include <unistd.h>
|
|
#include <string.h>
|
|
#include <errno.h>
|
|
|
|
#include <netinet/in.h>
|
|
#include <net/if.h>
|
|
|
|
#include "netutils/netlib.h"
|
|
|
|
#ifdef CONFIG_NET
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: netlib_getifstatus
|
|
*
|
|
* Description:
|
|
* Get the network driver ifup/ifdown status
|
|
*
|
|
* Parameters:
|
|
* ifname The name of the interface to use
|
|
* flags The interface flags returned by SIOCGIFFLAGS
|
|
*
|
|
* Return:
|
|
* 0 on success; -1 on failure
|
|
*
|
|
****************************************************************************/
|
|
|
|
int netlib_getifstatus(FAR const char *ifname, FAR uint8_t *flags)
|
|
{
|
|
int ret = ERROR;
|
|
if (ifname)
|
|
{
|
|
/* Get a socket (only so that we get access to the INET subsystem) */
|
|
|
|
int sockfd = socket(NET_SOCK_FAMILY, NET_SOCK_TYPE, NET_SOCK_PROTOCOL);
|
|
if (sockfd >= 0)
|
|
{
|
|
struct ifreq req;
|
|
memset (&req, 0, sizeof(struct ifreq));
|
|
|
|
/* Put the driver name into the request */
|
|
|
|
strlcpy(req.ifr_name, ifname, IFNAMSIZ);
|
|
|
|
/* Perform the ioctl to ifup or ifdown status */
|
|
|
|
ret = ioctl(sockfd, SIOCGIFFLAGS, (unsigned long)&req);
|
|
if (!ret)
|
|
{
|
|
*flags = req.ifr_flags;
|
|
}
|
|
|
|
close(sockfd);
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
#endif /* CONFIG_NET */
|