r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
ioctl$TCSETAF(r0, 0x5408, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x8, 0x0, "50f0cf44d179bc61"})