r0 = socket$inet_tcp(0x2, 0x1, 0x0)
setsockopt$inet_tcp_TCP_CONGESTION(r0, 0x6, 0xd, &(0x7f0000000140)='cdg\x00', 0x4)
getsockopt$inet_tcp_buf(r0, 0x6, 0xb, 0x0, &(0x7f0000000040))