r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000080), 0x0, 0x0)
ioctl$TCSETAF(r0, 0x5408, &(0x7f0000000200)={0x9, 0x0, 0x0, 0x0, 0x0, "a2ff7301d551f55b"})