49     let mut ifr: ifreq = unsafe { std::mem::zeroed() };  in create_tap_interface()  localVariable
50     ifr.ifr_ifru.ifru_flags = (IFF_TAP | IFF_NO_PI | IFF_VNET_HDR) as c_short;  in create_tap_interface()
51     ifr.ifr_name[..ifname.len()].copy_from_slice(ifname);  in create_tap_interface()
53     unsafe { ioctl_tunsetiff(fd, &ifr) }.context("Failed to ioctl TUNSETIFF")?;  in create_tap_interface()
57     unsafe { ifr.ifr_ifru.ifru_flags |= IFF_UP as c_short };  in create_tap_interface()
59     unsafe { ioctl_siocsifflags(sockfd, &ifr) }.context("Failed to ioctl SIOCSIFFLAGS")?;  in create_tap_interface()
65     let ifr: ifreq = unsafe { std::mem::zeroed() };  in get_tap_ifreq()  localVariable
68     unsafe { ioctl_tungetiff(fd, &ifr) }.context("Failed to ioctl TUNGETIFF")?;  in get_tap_ifreq()
69     Ok(ifr)  in get_tap_ifreq()
72 fn delete_tap_interface(fd: RawFd, sockfd: c_int, ifr: &mut ifreq) -> Result<()> {  in delete_tap_interface()
74     unsafe { ifr.ifr_ifru.ifru_flags &= !IFF_UP as c_short };  in delete_tap_interface()
76     unsafe { ioctl_siocsifflags(sockfd, ifr) }.context("Failed to ioctl SIOCSIFFLAGS")?;  in delete_tap_interface()