Function ioctl_ifcreate

tools/ifconfig/ifconfig.c:258–269

}

void
ioctl_ifcreate(int s, struct ifreq *ifr)
{
	if (ioctl(s, SIOCIFCREATE2, ifr) < 0) {
		switch (errno) {
		case EEXIST:
			errx(1, "interface %s already exists", ifr->ifr_name);
		default:
			err(1, "SIOCIFCREATE2");
		}
	}
}

#define ORDERS_SIZE(x) sizeof(x) / sizeof(x[0])