r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
ioctl$TIOCVHANGUP(r0, 0x5437, 0x0)
r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0)
dup2(r1, r0)