#include <sys/ioctl.h>
#include <net/if.h>
int check_netdevice_status(void)
{
struct ifreq req;
memset(&req, 0, sizeof(req));
strcpy(req.ifr_name, "wlan0");
int skfd = socket(AF_INET, SOCK_DGRAM, 0);
if (skfd < 0)
{
return -1;
}
if (ioctl(skfd, SIOCGIFFLAGS, &req) < 0)
{
close(skfd);
return -2;
}
if(!req.ifr_flags & IFF_RUNNING)
{
close(skfd);
return -3;
}
close(skfd);
return 0;
}
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