r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
ioctl$TIOCSPTLCK(r0, 0x5420, &(0x7f00000000c0)=0x1)
ioctl$TCSETS(r0, 0x5420, &(0x7f0000000100)={0x7fffffff, 0x0, 0x0, 0x0, 0x0, "caf3fd84e0d0ab35c933c2235a52cb634c1f94"})