nc 0.9.8

Access system calls directly
Documentation 
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/// Receive a msg from a socket.
pub unsafe fn sctp_generic_recvmsg(
    sockfd: i32,
    iov: &mut [iovec_t],
    from: &mut [sockaddr_t],
    from_len_addr: &mut socklen_t,
    sinfo: &mut sctp_sndrcvinfo_t,
    msg_flags: &mut i32,
) -> Result<ssize_t, Errno> {
    let sockfd = sockfd as usize;
    let iov_ptr = iov.as_mut_ptr() as usize;
    let iov_len = iov.len();
    let from_ptr = from.as_mut_ptr() as usize;
    let from_len_addr_ptr = core::ptr::from_mut(from_len_addr) as usize;
    let sinfo_ptr = core::ptr::from_mut(sinfo) as usize;
    let _msg_flags_ptr = core::ptr::from_mut(msg_flags) as usize;
    // FIXME(Shaohua): Parameter error
    unsafe {
        syscall6(
            SYS_SCTP_GENERIC_RECVMSG,
            sockfd,
            iov_ptr,
            iov_len,
            from_ptr,
            from_len_addr_ptr,
            sinfo_ptr,
            //msg_flags_ptr,
        )
        .map(|ret| ret as ssize_t)
    }
}