r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f00000000c0), 0x43901, 0x0)
openat$ptmx(0xffffffffffffff9c, 0x0, 0x0, 0x0)
r1 = openat$full(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
sendfile(r0, r1, 0x0, 0xaa80)