__cmsg_nxthdr 83 include/linux/socket.h #define __CMSG_NXTHDR(ctl, len, cmsg) __cmsg_nxthdr((ctl),(len),(cmsg)) __cmsg_nxthdr 143 include/linux/socket.h return __cmsg_nxthdr(__msg->msg_control, __msg->msg_controllen, __cmsg);