ifioctl
error = ifioctl(&so, cmd, data, td);
error = ifioctl(so, SIOCAIFADDR, (caddr_t)&nd->myif, td);
error = ifioctl(so, SIOCAIFADDR, (caddr_t)&nd->myif, td);
error = ifioctl(so, SIOCSIFMTU, (caddr_t)&ir, td);
error = ifioctl(so, cmd, data, td);
int ifioctl(struct socket *, u_long, caddr_t, struct thread *);
error = ifioctl(bootp_so, SIOCAIFADDR, (caddr_t)ifra,
error = ifioctl(bootp_so, SIOCAIFADDR, (caddr_t)ifra,
error = ifioctl(bootp_so, SIOCGIFFLAGS, (caddr_t)ifr, td);
error = ifioctl(bootp_so, SIOCSIFFLAGS, (caddr_t)ifr, td);
error = ifioctl(bootp_so, SIOCAIFADDR, (caddr_t)ifra, td);
error = ifioctl(bootp_so, SIOCGIFFLAGS, (caddr_t)ifr, td);
error = ifioctl(bootp_so, SIOCSIFFLAGS, (caddr_t)ifr, td);
error = ifioctl(bootp_so, SIOCDIFADDR, (caddr_t) ifr, td);
error = ifioctl(bootp_so, SIOCSIFMTU, (caddr_t) ifr, td);
error = ifioctl(bootp_so, SIOCDIFADDR, (caddr_t) ifr, td);
error = ifioctl(bootp_so, SIOCAIFADDR, (caddr_t)ifra, td);