SYS_GETEUID              = 25  // { uid_t|sys||geteuid(void); }
	SYS_PTRACE               = 26  // { int|sys||ptrace(int req, pid_t pid, void *addr, int data); }
	SYS_RECVMSG              = 27  // { ssize_t|sys||recvmsg(int s, struct msghdr *msg, int flags); }
	SYS_SENDMSG              = 28  // { ssize_t|sys||sendmsg(int s, const struct msghdr *msg, int flags); }

//sys	recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error)
//sys	sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error)
//sys	recvmsg(s int, msg *Msghdr, flags int) (n int, err error)
//sys	sendmsg(s int, msg *Msghdr, flags int) (n int, err error)
//sys	mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error)

	SYS_GETEUID              = 25  // { uid_t|sys||geteuid(void); }
	SYS_PTRACE               = 26  // { int|sys||ptrace(int req, pid_t pid, void *addr, int data); }
	SYS_RECVMSG              = 27  // { ssize_t|sys||recvmsg(int s, struct msghdr *msg, int flags); }
	SYS_SENDMSG              = 28  // { ssize_t|sys||sendmsg(int s, const struct msghdr *msg, int flags); }

	SYS_GETEUID              = 25  // { uid_t|sys||geteuid(void); }
	SYS_PTRACE               = 26  // { int|sys||ptrace(int req, pid_t pid, void *addr, int data); }
	SYS_RECVMSG              = 27  // { ssize_t|sys||recvmsg(int s, struct msghdr *msg, int flags); }
	SYS_SENDMSG              = 28  // { ssize_t|sys||sendmsg(int s, const struct msghdr *msg, int flags); }

	SYS_GETEUID              = 25  // { uid_t|sys||geteuid(void); }
	SYS_PTRACE               = 26  // { int|sys||ptrace(int req, pid_t pid, void *addr, int data); }
	SYS_RECVMSG              = 27  // { ssize_t|sys||recvmsg(int s, struct msghdr *msg, int flags); }
	SYS_SENDMSG              = 28  // { ssize_t|sys||sendmsg(int s, const struct msghdr *msg, int flags); }

//sys	recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error)
//sys	sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error)
//sys	recvmsg(s int, msg *Msghdr, flags int) (n int, err error)
//sys	sendmsg(s int, msg *Msghdr, flags int) (n int, err error)

//sysnb	InotifyInit() (fd int, err error)
//sys	Ioperm(from int, num int, on int) (err error)

	SYS_GETEUID              = 25  // { uid_t|sys||geteuid(void); }
	SYS_PTRACE               = 26  // { int|sys||ptrace(int req, pid_t pid, void *addr, int data); }
	SYS_RECVMSG              = 27  // { ssize_t|sys||recvmsg(int s, struct msghdr *msg, int flags); }
	SYS_SENDMSG              = 28  // { ssize_t|sys||sendmsg(int s, const struct msghdr *msg, int flags); }

//sys	recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error)
//sys	sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error)
//sys	recvmsg(s int, msg *Msghdr, flags int) (n int, err error)
//sys	sendmsg(s int, msg *Msghdr, flags int) (n int, err error)
//sys	mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error)

		if len(p) == 0 {
			iov.Base = &dummy
			iov.SetLen(1)
		}
		msg.Accrights = (*int8)(unsafe.Pointer(&oob[0]))
		msg.Accrightslen = int32(len(oob))
	}
	msg.Iov = &iov
	msg.Iovlen = 1
	if n, err = recvmsg(fd, &msg, flags); err != nil {
		return
	}
	oobn = int(msg.Accrightslen)
	return
}

//sys	sendmsg(s int, msg *Msghdr, flags int) (n int, err error) = libsocket.__xnet_sendmsg

	}
}

// ReadMsg wraps the recvmsg network call.
func (fd *FD) ReadMsg(p []byte, oob []byte, flags int) (int, int, int, syscall.Sockaddr, error) {
	if err := fd.readLock(); err != nil {
		return 0, 0, 0, nil, err
	}
	defer fd.readUnlock()
	if err := fd.pd.prepareRead(fd.isFile); err != nil {
		return 0, 0, 0, nil, err
	}
	for {
		n, oobn, sysflags, sa, err := syscall.Recvmsg(fd.Sysfd, p, oob, flags)
		if err != nil {