r0 = socket$nl_sock_diag(0x10, 0x3, 0x4)
sendmsg$DCCPDIAG_GETSOCK(r0, &(0x7f0000005840)={0x0, 0x0, &(0x7f0000005800)={&(0x7f0000004640)={0x4c, 0x13, 0x1}, 0x4c}}, 0x0)