Function nix::sys::socket::recvmsg

pub fn recvmsg<'a, T>(fd: RawFd,
                      iov: &[IoVec<&mut [u8]>],
                      cmsg_buffer: Option<&'a mut CmsgSpace<T>>,
                      flags: MsgFlags)
                      -> Result<RecvMsg<'a>>

Receive message in scatter-gather vectors from a socket, and optionally receive ancillary data into the provided buffer. If no ancillary data is desired, use () as the type parameter.